remove ceph code
[stor4nfv.git] / src / ceph / src / test / librbd / test_librbd.cc
diff --git a/src/ceph/src/test/librbd/test_librbd.cc b/src/ceph/src/test/librbd/test_librbd.cc
deleted file mode 100644 (file)
index 92a9b5c..0000000
+++ /dev/null
@@ -1,5991 +0,0 @@
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-/*
- * Ceph - scalable distributed file system
- *
- * Copyright (C) 2011 New Dream Network
- *
- * This is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License version 2, as published by the Free Software
- * Foundation.  See file COPYING.
- *
- */
-
-#include "include/int_types.h"
-#include "include/rados/librados.h"
-#include "include/rbd_types.h"
-#include "include/rbd/librbd.h"
-#include "include/rbd/librbd.hpp"
-#include "include/event_type.h"
-#include "include/err.h"
-
-#include "gtest/gtest.h"
-
-#include <errno.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <poll.h>
-#include <time.h>
-#include <unistd.h>
-#include <algorithm>
-#include <chrono>
-#include <condition_variable>
-#include <iostream>
-#include <sstream>
-#include <list>
-#include <set>
-#include <thread>
-#include <vector>
-
-#include "test/librados/test.h"
-#include "test/librbd/test_support.h"
-#include "common/event_socket.h"
-#include "include/interval_set.h"
-#include "include/stringify.h"
-
-#include <boost/assign/list_of.hpp>
-#include <boost/scope_exit.hpp>
-
-#ifdef HAVE_EVENTFD
-#include <sys/eventfd.h>
-#endif
-
-using namespace std;
-
-using std::chrono::seconds;
-
-#define ASSERT_PASSED(x, args...) \
-  do {                            \
-    bool passed = false;          \
-    x(args, &passed);             \
-    ASSERT_TRUE(passed);          \
-  } while(0)
-
-void register_test_librbd() {
-}
-
-static int get_features(bool *old_format, uint64_t *features)
-{
-  const char *c = getenv("RBD_FEATURES");
-  if (c) {
-    stringstream ss;
-    ss << c;
-    ss >> *features;
-    if (ss.fail())
-      return -EINVAL;
-    *old_format = false;
-    cout << "using new format!" << std::endl;
-  } else {
-    *old_format = true;
-    *features = 0;
-    cout << "using old format" << std::endl;
-  }
-
-  return 0;
-}
-
-static int create_image_full(rados_ioctx_t ioctx, const char *name,
-                             uint64_t size, int *order, int old_format,
-                             uint64_t features)
-{
-  if (old_format) {
-    // ensure old-format tests actually use the old format
-    int r = rados_conf_set(rados_ioctx_get_cluster(ioctx),
-                           "rbd_default_format", "1");
-    if (r < 0) {
-      return r;
-    }
-    return rbd_create(ioctx, name, size, order);
-  } else if ((features & RBD_FEATURE_STRIPINGV2) != 0) {
-    uint64_t stripe_unit = IMAGE_STRIPE_UNIT;
-    if (*order) {
-      // use a conservative stripe_unit for non default order
-      stripe_unit = (1ull << (*order-1));
-    }
-
-    printf("creating image with stripe unit: %" PRIu64 ", "
-          "stripe count: %" PRIu64 "\n",
-           stripe_unit, IMAGE_STRIPE_COUNT);
-    return rbd_create3(ioctx, name, size, features, order,
-                       stripe_unit, IMAGE_STRIPE_COUNT);
-  } else {
-    return rbd_create2(ioctx, name, size, features, order);
-  }
-}
-
-static int clone_image(rados_ioctx_t p_ioctx,
-                       rbd_image_t p_image, const char *p_name,
-                       const char *p_snap_name, rados_ioctx_t c_ioctx,
-                       const char *c_name, uint64_t features, int *c_order)
-{
-  uint64_t stripe_unit, stripe_count;
-
-  int r;
-  r = rbd_get_stripe_unit(p_image, &stripe_unit);
-  if (r != 0) {
-    return r;
-  }
-
-  r = rbd_get_stripe_count(p_image, &stripe_count);
-  if (r != 0) {
-    return r;
-  }
-
-  return rbd_clone2(p_ioctx, p_name, p_snap_name, c_ioctx,
-                    c_name, features, c_order, stripe_unit, stripe_count);
-}
-
-
-static int create_image(rados_ioctx_t ioctx, const char *name,
-                       uint64_t size, int *order)
-{
-  bool old_format;
-  uint64_t features;
-
-  int r = get_features(&old_format, &features);
-  if (r < 0)
-    return r;
-  return create_image_full(ioctx, name, size, order, old_format, features);
-}
-
-static int create_image_pp(librbd::RBD &rbd,
-                          librados::IoCtx &ioctx,
-                          const char *name,
-                          uint64_t size, int *order) {
-  bool old_format;
-  uint64_t features;
-  int r = get_features(&old_format, &features);
-  if (r < 0)
-    return r;
-  if (old_format) {
-    librados::Rados rados(ioctx);
-    int r = rados.conf_set("rbd_default_format", "1");
-    if (r < 0) {
-      return r;
-    }
-    return rbd.create(ioctx, name, size, order);
-  } else {
-    return rbd.create2(ioctx, name, size, features, order);
-  }
-}
-
-class TestLibRBD : public ::testing::Test {
-public:
-
-  TestLibRBD() : m_pool_number() {
-  }
-
-  static void SetUpTestCase() {
-    static bool seeded = false;
-    if (!seeded) {
-      seeded = true;
-      int seed = getpid();
-      cout << "seed " << seed << std::endl;
-      srand(seed);
-    }
-
-    _pool_names.clear();
-    _unique_pool_names.clear();
-    _image_number = 0;
-    ASSERT_EQ("", connect_cluster(&_cluster));
-    ASSERT_EQ("", connect_cluster_pp(_rados));
-
-    create_optional_data_pool();
-  }
-
-  static void TearDownTestCase() {
-    rados_shutdown(_cluster);
-    _rados.wait_for_latest_osdmap();
-    _pool_names.insert(_pool_names.end(), _unique_pool_names.begin(),
-                      _unique_pool_names.end());
-    for (size_t i = 1; i < _pool_names.size(); ++i) {
-      ASSERT_EQ(0, _rados.pool_delete(_pool_names[i].c_str()));
-    }
-    if (!_pool_names.empty()) {
-      ASSERT_EQ(0, destroy_one_pool_pp(_pool_names[0], _rados));
-    }
-  }
-
-  void SetUp() override {
-    ASSERT_NE("", m_pool_name = create_pool());
-  }
-
-  bool is_skip_partial_discard_enabled() {
-    std::string value;
-    EXPECT_EQ(0, _rados.conf_get("rbd_skip_partial_discard", value));
-    return value == "true";
-  }
-
-  void validate_object_map(rbd_image_t image, bool *passed) {
-    uint64_t flags;
-    ASSERT_EQ(0, rbd_get_flags(image, &flags));
-    *passed = ((flags & RBD_FLAG_OBJECT_MAP_INVALID) == 0);
-  }
-
-  void validate_object_map(librbd::Image &image, bool *passed) {
-    uint64_t flags;
-    ASSERT_EQ(0, image.get_flags(&flags));
-    *passed = ((flags & RBD_FLAG_OBJECT_MAP_INVALID) == 0);
-  }
-
-  std::string get_temp_image_name() {
-    ++_image_number;
-    return "image" + stringify(_image_number);
-  }
-
-  static void create_optional_data_pool() {
-    bool created = false;
-    std::string data_pool;
-    ASSERT_EQ(0, create_image_data_pool(_rados, data_pool, &created));
-    if (!data_pool.empty()) {
-      printf("using image data pool: %s\n", data_pool.c_str());
-      if (created) {
-        _unique_pool_names.push_back(data_pool);
-      }
-    }
-  }
-
-  std::string create_pool(bool unique = false) {
-    librados::Rados rados;
-    std::string pool_name;
-    if (unique) {
-      pool_name = get_temp_pool_name("test-librbd-");
-      EXPECT_EQ("", create_one_pool_pp(pool_name, rados));
-      _unique_pool_names.push_back(pool_name);
-    } else if (m_pool_number < _pool_names.size()) {
-      pool_name = _pool_names[m_pool_number];
-    } else {
-      pool_name = get_temp_pool_name("test-librbd-");
-      EXPECT_EQ("", create_one_pool_pp(pool_name, rados));
-      _pool_names.push_back(pool_name);
-    }
-    ++m_pool_number;
-    return pool_name;
-  }
-
-  static std::vector<std::string> _pool_names;
-  static std::vector<std::string> _unique_pool_names;
-  static rados_t _cluster;
-  static librados::Rados _rados;
-  static uint64_t _image_number;
-
-  std::string m_pool_name;
-  uint32_t m_pool_number;
-
-};
-
-std::vector<std::string> TestLibRBD::_pool_names;
-std::vector<std::string> TestLibRBD::_unique_pool_names;
-rados_t TestLibRBD::_cluster;
-librados::Rados TestLibRBD::_rados;
-uint64_t TestLibRBD::_image_number = 0;
-
-TEST_F(TestLibRBD, CreateAndStat)
-{
-  rados_ioctx_t ioctx;
-  ASSERT_EQ(0, rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx));
-
-  rbd_image_info_t info;
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-  ASSERT_EQ(0, rbd_stat(image, &info, sizeof(info)));
-  printf("image has size %llu and order %d\n", (unsigned long long) info.size, info.order);
-  ASSERT_EQ(info.size, size);
-  ASSERT_EQ(info.order, order);
-  ASSERT_EQ(0, rbd_close(image));
-
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, CreateWithSameDataPool)
-{
-  REQUIRE_FORMAT_V2();
-
-  rados_ioctx_t ioctx;
-  ASSERT_EQ(0, rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx));
-
-  rbd_image_t image;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-
-  bool old_format;
-  uint64_t features;
-  ASSERT_EQ(0, get_features(&old_format, &features));
-  ASSERT_FALSE(old_format);
-
-  rbd_image_options_t image_options;
-  rbd_image_options_create(&image_options);
-  BOOST_SCOPE_EXIT( (&image_options) ) {
-    rbd_image_options_destroy(image_options);
-  } BOOST_SCOPE_EXIT_END;
-
-  ASSERT_EQ(0, rbd_image_options_set_uint64(image_options,
-                                            RBD_IMAGE_OPTION_FEATURES,
-                                            features));
-  ASSERT_EQ(0, rbd_image_options_set_string(image_options,
-                                            RBD_IMAGE_OPTION_DATA_POOL,
-                                            m_pool_name.c_str()));
-
-  ASSERT_EQ(0, rbd_create4(ioctx, name.c_str(), size, image_options));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  ASSERT_EQ(0, rbd_close(image));
-
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, CreateAndStatPP)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  {
-    librbd::RBD rbd;
-    librbd::image_info_t info;
-    librbd::Image image;
-    int order = 0;
-    std::string name = get_temp_image_name();
-    uint64_t size = 2 << 20;
-    
-    ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-    ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-    ASSERT_EQ(0, image.stat(info, sizeof(info)));
-    ASSERT_EQ(info.size, size);
-    ASSERT_EQ(info.order, order);
-  }
-
-  ioctx.close();
-}
-
-TEST_F(TestLibRBD, GetId)
-{
-  rados_ioctx_t ioctx;
-  ASSERT_EQ(0, rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx));
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), 0, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  char id[4096];
-  if (!is_feature_enabled(0)) {
-    // V1 image
-    ASSERT_EQ(-EINVAL, rbd_get_id(image, id, sizeof(id)));
-  } else {
-    ASSERT_EQ(-ERANGE, rbd_get_id(image, id, 0));
-    ASSERT_EQ(0, rbd_get_id(image, id, sizeof(id)));
-    ASSERT_LT(0U, strlen(id));
-  }
-
-  ASSERT_EQ(0, rbd_close(image));
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, GetIdPP)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  librbd::Image image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-
-  std::string id;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), 0, &order));
-  ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-  if (!is_feature_enabled(0)) {
-    // V1 image
-    ASSERT_EQ(-EINVAL, image.get_id(&id));
-  } else {
-    ASSERT_EQ(0, image.get_id(&id));
-    ASSERT_LT(0U, id.size());
-  }
-}
-
-TEST_F(TestLibRBD, GetBlockNamePrefix)
-{
-  rados_ioctx_t ioctx;
-  ASSERT_EQ(0, rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx));
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), 0, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  char prefix[4096];
-  ASSERT_EQ(-ERANGE, rbd_get_block_name_prefix(image, prefix, 0));
-  ASSERT_EQ(0, rbd_get_block_name_prefix(image, prefix, sizeof(prefix)));
-  ASSERT_LT(0U, strlen(prefix));
-
-  ASSERT_EQ(0, rbd_close(image));
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, GetBlockNamePrefixPP)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  librbd::Image image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), 0, &order));
-  ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-  ASSERT_LT(0U, image.get_block_name_prefix().size());
-}
-
-TEST_F(TestLibRBD, TestGetCreateTimestamp)
-{
-  REQUIRE_FORMAT_V2();
-
-  rados_ioctx_t ioctx;
-  ASSERT_EQ(0, rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx));
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), 0, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  struct timespec timestamp;
-  ASSERT_EQ(0, rbd_get_create_timestamp(image, &timestamp));
-  ASSERT_LT(0, timestamp.tv_sec);
-
-  ASSERT_EQ(0, rbd_close(image));
-
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, GetCreateTimestampPP)
-{
-  REQUIRE_FORMAT_V2();
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  librbd::Image image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), 0, &order));
-  ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-  struct timespec timestamp;
-  ASSERT_EQ(0, image.get_create_timestamp(&timestamp));
-  ASSERT_LT(0, timestamp.tv_sec);
-}
-
-TEST_F(TestLibRBD, OpenAio)
-{
-  rados_ioctx_t ioctx;
-  ASSERT_EQ(0, rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx));
-
-  rbd_image_info_t info;
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-
-  rbd_completion_t open_comp;
-  ASSERT_EQ(0, rbd_aio_create_completion(NULL, NULL, &open_comp));
-  ASSERT_EQ(0, rbd_aio_open(ioctx, name.c_str(), &image, NULL, open_comp));
-  ASSERT_EQ(0, rbd_aio_wait_for_complete(open_comp));
-  ASSERT_EQ(1, rbd_aio_is_complete(open_comp));
-  ASSERT_EQ(0, rbd_aio_get_return_value(open_comp));
-  rbd_aio_release(open_comp);
-
-  ASSERT_EQ(0, rbd_stat(image, &info, sizeof(info)));
-  printf("image has size %llu and order %d\n", (unsigned long long) info.size, info.order);
-  ASSERT_EQ(info.size, size);
-  ASSERT_EQ(info.order, order);
-
-  rbd_completion_t close_comp;
-  ASSERT_EQ(0, rbd_aio_create_completion(NULL, NULL, &close_comp));
-  ASSERT_EQ(0, rbd_aio_close(image, close_comp));
-  ASSERT_EQ(0, rbd_aio_wait_for_complete(close_comp));
-  ASSERT_EQ(1, rbd_aio_is_complete(close_comp));
-  ASSERT_EQ(0, rbd_aio_get_return_value(close_comp));
-  rbd_aio_release(close_comp);
-
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, OpenAioFail)
-{
-  rados_ioctx_t ioctx;
-  ASSERT_EQ(0, rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx));
-
-  std::string name = get_temp_image_name();
-  rbd_image_t image;
-  rbd_completion_t open_comp;
-  ASSERT_EQ(0, rbd_aio_create_completion(NULL, NULL, &open_comp));
-  ASSERT_EQ(0, rbd_aio_open(ioctx, name.c_str(), &image, NULL, open_comp));
-  ASSERT_EQ(0, rbd_aio_wait_for_complete(open_comp));
-  ASSERT_EQ(1, rbd_aio_is_complete(open_comp));
-  ASSERT_EQ(-ENOENT, rbd_aio_get_return_value(open_comp));
-  rbd_aio_release(open_comp);
-
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, OpenAioPP)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  librbd::image_info_t info;
-  librbd::Image image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::RBD::AioCompletion *open_comp =
-      new librbd::RBD::AioCompletion(NULL, NULL);
-  ASSERT_EQ(0, rbd.aio_open(ioctx, image, name.c_str(), NULL, open_comp));
-  ASSERT_EQ(0, open_comp->wait_for_complete());
-  ASSERT_EQ(1, open_comp->is_complete());
-  ASSERT_EQ(0, open_comp->get_return_value());
-  open_comp->release();
-
-  ASSERT_EQ(0, image.stat(info, sizeof(info)));
-  ASSERT_EQ(info.size, size);
-  ASSERT_EQ(info.order, order);
-
-  // reopen
-  open_comp = new librbd::RBD::AioCompletion(NULL, NULL);
-  ASSERT_EQ(0, rbd.aio_open(ioctx, image, name.c_str(), NULL, open_comp));
-  ASSERT_EQ(0, open_comp->wait_for_complete());
-  ASSERT_EQ(1, open_comp->is_complete());
-  ASSERT_EQ(0, open_comp->get_return_value());
-  open_comp->release();
-
-  // close
-  librbd::RBD::AioCompletion *close_comp =
-      new librbd::RBD::AioCompletion(NULL, NULL);
-  ASSERT_EQ(0, image.aio_close(close_comp));
-  ASSERT_EQ(0, close_comp->wait_for_complete());
-  ASSERT_EQ(1, close_comp->is_complete());
-  ASSERT_EQ(0, close_comp->get_return_value());
-  close_comp->release();
-
-  // close closed image
-  close_comp = new librbd::RBD::AioCompletion(NULL, NULL);
-  ASSERT_EQ(-EINVAL, image.aio_close(close_comp));
-  close_comp->release();
-
-  ioctx.close();
-}
-
-TEST_F(TestLibRBD, OpenAioFailPP)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  {
-    librbd::RBD rbd;
-    librbd::Image image;
-    std::string name = get_temp_image_name();
-
-    librbd::RBD::AioCompletion *open_comp =
-      new librbd::RBD::AioCompletion(NULL, NULL);
-    ASSERT_EQ(0, rbd.aio_open(ioctx, image, name.c_str(), NULL, open_comp));
-    ASSERT_EQ(0, open_comp->wait_for_complete());
-    ASSERT_EQ(1, open_comp->is_complete());
-    ASSERT_EQ(-ENOENT, open_comp->get_return_value());
-    open_comp->release();
-  }
-
-  ioctx.close();
-}
-
-TEST_F(TestLibRBD, ResizeAndStat)
-{
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  rbd_image_info_t info;
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  ASSERT_EQ(0, rbd_resize(image, size * 4));
-  ASSERT_EQ(0, rbd_stat(image, &info, sizeof(info)));
-  ASSERT_EQ(info.size, size * 4);
-
-  ASSERT_EQ(0, rbd_resize(image, size / 2));
-  ASSERT_EQ(0, rbd_stat(image, &info, sizeof(info)));
-  ASSERT_EQ(info.size, size / 2);
-
-  // downsizing without allowing shrink should fail
-  // and image size should not change
-  ASSERT_EQ(-EINVAL, rbd_resize2(image, size / 4, false, NULL, NULL));
-  ASSERT_EQ(0, rbd_stat(image, &info, sizeof(info)));
-  ASSERT_EQ(info.size, size / 2);
-
-  ASSERT_EQ(0, rbd_resize2(image, size / 4, true, NULL, NULL));
-  ASSERT_EQ(0, rbd_stat(image, &info, sizeof(info)));
-  ASSERT_EQ(info.size, size / 4);
-
-  ASSERT_PASSED(validate_object_map, image);
-  ASSERT_EQ(0, rbd_close(image));
-
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, ResizeAndStatPP)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  {
-    librbd::RBD rbd;
-    librbd::image_info_t info;
-    librbd::Image image;
-    int order = 0;
-    std::string name = get_temp_image_name();
-    uint64_t size = 2 << 20;
-    
-    ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-    ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-    
-    ASSERT_EQ(0, image.resize(size * 4));
-    ASSERT_EQ(0, image.stat(info, sizeof(info)));
-    ASSERT_EQ(info.size, size * 4);
-    
-    ASSERT_EQ(0, image.resize(size / 2));
-    ASSERT_EQ(0, image.stat(info, sizeof(info)));
-    ASSERT_EQ(info.size, size / 2);
-    ASSERT_PASSED(validate_object_map, image);
-  }
-
-  ioctx.close();
-}
-
-TEST_F(TestLibRBD, UpdateWatchAndResize)
-{
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  struct Watcher {
-    rbd_image_t &m_image;
-    mutex m_lock;
-    condition_variable m_cond;
-    size_t m_size = 0;
-    static void cb(void *arg) {
-      Watcher *watcher = static_cast<Watcher *>(arg);
-      watcher->handle_notify();
-    }
-    Watcher(rbd_image_t &image) : m_image(image) {}
-    void handle_notify() {
-      rbd_image_info_t info;
-      ASSERT_EQ(0, rbd_stat(m_image, &info, sizeof(info)));
-      lock_guard<mutex> locker(m_lock);
-      m_size = info.size;
-      m_cond.notify_one();
-    }
-    void wait_for_size(size_t size) {
-      unique_lock<mutex> locker(m_lock);
-      ASSERT_TRUE(m_cond.wait_for(locker, seconds(5),
-                                 [size, this] {
-                                   return this->m_size == size;}));
-    }
-  } watcher(image);
-  uint64_t handle;
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  ASSERT_EQ(0, rbd_update_watch(image, &handle, Watcher::cb, &watcher));
-
-  ASSERT_EQ(0, rbd_resize(image, size * 4));
-  watcher.wait_for_size(size * 4);
-
-  ASSERT_EQ(0, rbd_resize(image, size / 2));
-  watcher.wait_for_size(size / 2);
-
-  ASSERT_EQ(0, rbd_update_unwatch(image, handle));
-
-  ASSERT_EQ(0, rbd_close(image));
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, UpdateWatchAndResizePP)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  {
-    librbd::RBD rbd;
-    librbd::Image image;
-    int order = 0;
-    std::string name = get_temp_image_name();
-    uint64_t size = 2 << 20;
-    struct Watcher : public librbd::UpdateWatchCtx {
-      Watcher(librbd::Image &image) : m_image(image) {
-      }
-      void handle_notify() override {
-        librbd::image_info_t info;
-       ASSERT_EQ(0, m_image.stat(info, sizeof(info)));
-        lock_guard<mutex> locker(m_lock);
-        m_size = info.size;
-       m_cond.notify_one();
-      }
-      void wait_for_size(size_t size) {
-       unique_lock<mutex> locker(m_lock);
-       ASSERT_TRUE(m_cond.wait_for(locker, seconds(5),
-                                   [size, this] {
-                                     return this->m_size == size;}));
-      }
-      librbd::Image &m_image;
-      mutex m_lock;
-      condition_variable m_cond;
-      size_t m_size = 0;
-    } watcher(image);
-    uint64_t handle;
-
-    ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-    ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-    ASSERT_EQ(0, image.update_watch(&watcher, &handle));
-
-    ASSERT_EQ(0, image.resize(size * 4));
-    watcher.wait_for_size(size * 4);
-
-    ASSERT_EQ(0, image.resize(size / 2));
-    watcher.wait_for_size(size / 2);
-
-    ASSERT_EQ(0, image.update_unwatch(handle));
-  }
-
-  ioctx.close();
-}
-
-int test_ls(rados_ioctx_t io_ctx, size_t num_expected, ...)
-{
-  int num_images, i;
-  char *names, *cur_name;
-  va_list ap;
-  size_t max_size = 1024;
-
-  names = (char *) malloc(sizeof(char) * 1024);
-  int len = rbd_list(io_ctx, names, &max_size);
-
-  std::set<std::string> image_names;
-  for (i = 0, num_images = 0, cur_name = names; cur_name < names + len; i++) {
-    printf("image: %s\n", cur_name);
-    image_names.insert(cur_name);
-    cur_name += strlen(cur_name) + 1;
-    num_images++;
-  }
-  free(names);
-
-  va_start(ap, num_expected);
-  for (i = num_expected; i > 0; i--) {
-    char *expected = va_arg(ap, char *);
-    printf("expected = %s\n", expected);
-    std::set<std::string>::iterator it = image_names.find(expected);
-    if (it != image_names.end()) {
-      printf("found %s\n", expected);
-      image_names.erase(it);
-      printf("erased %s\n", expected);
-    } else {
-      ADD_FAILURE() << "Unable to find image " << expected;
-      va_end(ap);
-      return -ENOENT;
-    }
-  }
-  va_end(ap);
-
-  if (!image_names.empty()) {
-    ADD_FAILURE() << "Unexpected images discovered";
-    return -EINVAL;
-  }
-  return num_images;
-}
-
-TEST_F(TestLibRBD, TestCreateLsDelete)
-{
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, create_pool(true).c_str(), &ioctx);
-
-  int order = 0;
-  std::string name = get_temp_image_name();
-  std::string name2 = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(1, test_ls(ioctx, 1, name.c_str()));
-  ASSERT_EQ(0, create_image(ioctx, name2.c_str(), size, &order));
-  ASSERT_EQ(2, test_ls(ioctx, 2, name.c_str(), name2.c_str()));
-  ASSERT_EQ(0, rbd_remove(ioctx, name.c_str()));
-  ASSERT_EQ(1, test_ls(ioctx, 1, name2.c_str()));
-
-  ASSERT_EQ(-ENOENT, rbd_remove(ioctx, name.c_str()));
-
-  rados_ioctx_destroy(ioctx);
-}
-
-int test_ls_pp(librbd::RBD& rbd, librados::IoCtx& io_ctx, size_t num_expected, ...)
-{
-  int r;
-  size_t i;
-  va_list ap;
-  vector<string> names;
-  r = rbd.list(io_ctx, names);
-  if (r == -ENOENT)
-    r = 0;
-  EXPECT_TRUE(r >= 0);
-  cout << "num images is: " << names.size() << std::endl
-           << "expected: " << num_expected << std::endl;
-  int num = names.size();
-
-  for (i = 0; i < names.size(); i++) {
-    cout << "image: " << names[i] << std::endl;
-  }
-
-  va_start(ap, num_expected);
-  for (i = num_expected; i > 0; i--) {
-    char *expected = va_arg(ap, char *);
-    cout << "expected = " << expected << std::endl;
-    vector<string>::iterator listed_name = find(names.begin(), names.end(), string(expected));
-    if (listed_name == names.end()) {
-      ADD_FAILURE() << "Unable to find image " << expected;
-      va_end(ap);
-      return -ENOENT;
-    }
-    names.erase(listed_name);
-  }
-  va_end(ap);
-
-  if (!names.empty()) {
-    ADD_FAILURE() << "Unexpected images discovered";
-    return -EINVAL;
-  }
-  return num;
-}
-
-TEST_F(TestLibRBD, TestCreateLsDeletePP)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(create_pool(true).c_str(), ioctx));
-
-  {
-    librbd::RBD rbd;
-    librbd::Image image;
-    int order = 0;
-    std::string name = get_temp_image_name();
-    std::string name2 = get_temp_image_name();
-    uint64_t size = 2 << 20;
-
-    ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-    ASSERT_EQ(1, test_ls_pp(rbd, ioctx, 1, name.c_str()));
-    ASSERT_EQ(0, create_image_pp(rbd, ioctx, name2.c_str(), size, &order));
-    ASSERT_EQ(2, test_ls_pp(rbd, ioctx, 2, name.c_str(), name2.c_str()));
-    ASSERT_EQ(0, rbd.remove(ioctx, name.c_str()));
-    ASSERT_EQ(1, test_ls_pp(rbd, ioctx, 1, name2.c_str()));
-  }
-
-  ioctx.close();
-}
-
-
-static int print_progress_percent(uint64_t offset, uint64_t src_size,
-                                    void *data)
-{
-  float percent = ((float)offset * 100) / src_size;
-  printf("%3.2f%% done\n", percent);
-  return 0; 
-}
-
-TEST_F(TestLibRBD, TestCopy)
-{
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, create_pool(true).c_str(), &ioctx);
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  std::string name2 = get_temp_image_name();
-  std::string name3 = get_temp_image_name();
-
-  uint64_t size = 2 << 20;
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-  ASSERT_EQ(1, test_ls(ioctx, 1, name.c_str()));
-  ASSERT_EQ(0, rbd_copy(image, ioctx, name2.c_str()));
-  ASSERT_EQ(2, test_ls(ioctx, 2, name.c_str(), name2.c_str()));
-  ASSERT_EQ(0, rbd_copy_with_progress(image, ioctx, name3.c_str(),
-                                     print_progress_percent, NULL));
-  ASSERT_EQ(3, test_ls(ioctx, 3, name.c_str(), name2.c_str(), name3.c_str()));
-
-  ASSERT_EQ(0, rbd_close(image));
-  rados_ioctx_destroy(ioctx);
-}
-
-class PrintProgress : public librbd::ProgressContext
-{
-public:
-  int update_progress(uint64_t offset, uint64_t src_size) override
-  {
-    float percent = ((float)offset * 100) / src_size;
-    printf("%3.2f%% done\n", percent);
-    return 0;
-  }
-};
-
-TEST_F(TestLibRBD, TestCopyPP)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(create_pool(true).c_str(), ioctx));
-
-  {
-    librbd::RBD rbd;
-    librbd::Image image;
-    int order = 0;
-    std::string name = get_temp_image_name();
-    std::string name2 = get_temp_image_name();
-    std::string name3 = get_temp_image_name();
-    uint64_t size = 2 << 20;
-    PrintProgress pp;
-
-    ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-    ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-    ASSERT_EQ(1, test_ls_pp(rbd, ioctx, 1, name.c_str()));
-    ASSERT_EQ(0, image.copy(ioctx, name2.c_str()));
-    ASSERT_EQ(2, test_ls_pp(rbd, ioctx, 2, name.c_str(), name2.c_str()));
-    ASSERT_EQ(0, image.copy_with_progress(ioctx, name3.c_str(), pp));
-    ASSERT_EQ(3, test_ls_pp(rbd, ioctx, 3, name.c_str(), name2.c_str(),
-                           name3.c_str()));
-  }
-
-  ioctx.close();
-}
-
-int test_ls_snaps(rbd_image_t image, int num_expected, ...)
-{
-  int num_snaps, i, j, max_size = 10;
-  va_list ap;
-  rbd_snap_info_t snaps[max_size];
-  num_snaps = rbd_snap_list(image, snaps, &max_size);
-  printf("num snaps is: %d\nexpected: %d\n", num_snaps, num_expected);
-
-  for (i = 0; i < num_snaps; i++) {
-    printf("snap: %s\n", snaps[i].name);
-  }
-
-  va_start(ap, num_expected);
-  for (i = num_expected; i > 0; i--) {
-    char *expected = va_arg(ap, char *);
-    uint64_t expected_size = va_arg(ap, uint64_t);
-    bool found = false;
-    for (j = 0; j < num_snaps; j++) {
-      if (snaps[j].name == NULL)
-       continue;
-      if (strcmp(snaps[j].name, expected) == 0) {
-       printf("found %s with size %llu\n", snaps[j].name, (unsigned long long) snaps[j].size);
-       EXPECT_EQ(expected_size, snaps[j].size);
-       free((void *) snaps[j].name);
-       snaps[j].name = NULL;
-       found = true;
-       break;
-      }
-    }
-    EXPECT_TRUE(found);
-  }
-  va_end(ap);
-
-  for (i = 0; i < num_snaps; i++) {
-    EXPECT_EQ((const char *)0, snaps[i].name);
-  }
-
-  return num_snaps;
-}
-
-TEST_F(TestLibRBD, TestCreateLsDeleteSnap)
-{
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  uint64_t size2 = 4 << 20;
-  
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  ASSERT_EQ(0, rbd_snap_create(image, "snap1"));
-  ASSERT_EQ(1, test_ls_snaps(image, 1, "snap1", size));
-  ASSERT_EQ(0, rbd_resize(image, size2));
-  ASSERT_EQ(0, rbd_snap_create(image, "snap2"));
-  ASSERT_EQ(2, test_ls_snaps(image, 2, "snap1", size, "snap2", size2));
-  ASSERT_EQ(0, rbd_snap_remove(image, "snap1"));
-  ASSERT_EQ(1, test_ls_snaps(image, 1, "snap2", size2));
-  ASSERT_EQ(0, rbd_snap_remove(image, "snap2"));
-  ASSERT_EQ(0, test_ls_snaps(image, 0));
-  
-  ASSERT_EQ(0, rbd_close(image));
-
-  rados_ioctx_destroy(ioctx);
-}
-
-int test_get_snapshot_timestamp(rbd_image_t image, uint64_t snap_id)
-{
-  struct timespec timestamp;
-  EXPECT_EQ(0, rbd_snap_get_timestamp(image, snap_id, &timestamp));
-  EXPECT_LT(0, timestamp.tv_sec);
-  return 0;
-}
-
-TEST_F(TestLibRBD, TestGetSnapShotTimeStamp)
-{
-  REQUIRE_FORMAT_V2();
-
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  int num_snaps, max_size = 10;
-  rbd_snap_info_t snaps[max_size];
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  ASSERT_EQ(0, rbd_snap_create(image, "snap1"));
-  num_snaps = rbd_snap_list(image, snaps, &max_size);
-  ASSERT_EQ(1, num_snaps);
-  ASSERT_EQ(0, test_get_snapshot_timestamp(image, snaps[0].id));
-  free((void *)snaps[0].name);
-
-  ASSERT_EQ(0, rbd_snap_create(image, "snap2"));
-  num_snaps = rbd_snap_list(image, snaps, &max_size);
-  ASSERT_EQ(2, num_snaps);
-  ASSERT_EQ(0, test_get_snapshot_timestamp(image, snaps[0].id));
-  ASSERT_EQ(0, test_get_snapshot_timestamp(image, snaps[1].id));
-  free((void *)snaps[0].name);
-  free((void *)snaps[1].name);
-
-  ASSERT_EQ(0, rbd_close(image));
-
-  rados_ioctx_destroy(ioctx);
-}
-
-
-int test_ls_snaps(librbd::Image& image, size_t num_expected, ...)
-{
-  int r;
-  size_t i, j;
-  va_list ap;
-  vector<librbd::snap_info_t> snaps;
-  r = image.snap_list(snaps);
-  EXPECT_TRUE(r >= 0);
-  cout << "num snaps is: " << snaps.size() << std::endl
-           << "expected: " << num_expected << std::endl;
-
-  for (i = 0; i < snaps.size(); i++) {
-    cout << "snap: " << snaps[i].name << std::endl;
-  }
-
-  va_start(ap, num_expected);
-  for (i = num_expected; i > 0; i--) {
-    char *expected = va_arg(ap, char *);
-    uint64_t expected_size = va_arg(ap, uint64_t);
-    int found = 0;
-    for (j = 0; j < snaps.size(); j++) {
-      if (snaps[j].name == "")
-       continue;
-      if (strcmp(snaps[j].name.c_str(), expected) == 0) {
-       cout << "found " << snaps[j].name << " with size " << snaps[j].size
-            << std::endl;
-       EXPECT_EQ(expected_size, snaps[j].size);
-       snaps[j].name = "";
-       found = 1;
-       break;
-      }
-    }
-    EXPECT_TRUE(found);
-  }
-  va_end(ap);
-
-  for (i = 0; i < snaps.size(); i++) {
-    EXPECT_EQ("", snaps[i].name);
-  }
-
-  return snaps.size();
-}
-
-TEST_F(TestLibRBD, TestCreateLsDeleteSnapPP)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  {
-    librbd::RBD rbd;
-    librbd::Image image;
-    int order = 0;
-    std::string name = get_temp_image_name();
-    uint64_t size = 2 << 20;
-    uint64_t size2 = 4 << 20;
-    
-    ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-    ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-   
-    bool exists;
-    ASSERT_EQ(0, image.snap_exists2("snap1", &exists));
-    ASSERT_FALSE(exists);
-    ASSERT_EQ(0, image.snap_create("snap1"));
-    ASSERT_EQ(0, image.snap_exists2("snap1", &exists));
-    ASSERT_TRUE(exists);
-    ASSERT_EQ(1, test_ls_snaps(image, 1, "snap1", size));
-    ASSERT_EQ(0, image.resize(size2));
-    ASSERT_EQ(0, image.snap_exists2("snap2", &exists));
-    ASSERT_FALSE(exists);
-    ASSERT_EQ(0, image.snap_create("snap2"));
-    ASSERT_EQ(0, image.snap_exists2("snap2", &exists));
-    ASSERT_TRUE(exists);
-    ASSERT_EQ(2, test_ls_snaps(image, 2, "snap1", size, "snap2", size2));
-    ASSERT_EQ(0, image.snap_remove("snap1"));
-    ASSERT_EQ(0, image.snap_exists2("snap1", &exists));
-    ASSERT_FALSE(exists);
-    ASSERT_EQ(1, test_ls_snaps(image, 1, "snap2", size2));
-    ASSERT_EQ(0, image.snap_remove("snap2"));
-    ASSERT_EQ(0, image.snap_exists2("snap2", &exists));
-    ASSERT_FALSE(exists);
-    ASSERT_EQ(0, test_ls_snaps(image, 0));
-  }
-
-  ioctx.close();
-}
-
-TEST_F(TestLibRBD, TestCreateLsRenameSnapPP)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  {
-    librbd::RBD rbd;
-    librbd::Image image;
-    int order = 0;
-    std::string name = get_temp_image_name();
-    uint64_t size = 2 << 20;
-    uint64_t size2 = 4 << 20;
-    
-    ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-    ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-    
-    bool exists;
-    ASSERT_EQ(0, image.snap_exists2("snap1", &exists));
-    ASSERT_FALSE(exists);
-    ASSERT_EQ(0, image.snap_create("snap1"));
-    ASSERT_EQ(0, image.snap_exists2("snap1", &exists));
-    ASSERT_TRUE(exists);
-    ASSERT_EQ(1, test_ls_snaps(image, 1, "snap1", size));
-    ASSERT_EQ(0, image.resize(size2));
-    ASSERT_EQ(0, image.snap_exists2("snap2", &exists));
-    ASSERT_FALSE(exists);
-    ASSERT_EQ(0, image.snap_create("snap2"));
-    ASSERT_EQ(0, image.snap_exists2("snap2", &exists));
-    ASSERT_TRUE(exists);
-    ASSERT_EQ(2, test_ls_snaps(image, 2, "snap1", size, "snap2", size2));
-    ASSERT_EQ(0, image.snap_rename("snap1","snap1-rename"));
-    ASSERT_EQ(2, test_ls_snaps(image, 2, "snap1-rename", size, "snap2", size2));
-    ASSERT_EQ(0, image.snap_exists2("snap1", &exists));
-    ASSERT_FALSE(exists);
-    ASSERT_EQ(0, image.snap_exists2("snap1-rename", &exists));
-    ASSERT_TRUE(exists);
-    ASSERT_EQ(0, image.snap_remove("snap1-rename"));
-    ASSERT_EQ(0, image.snap_rename("snap2","snap2-rename"));
-    ASSERT_EQ(1, test_ls_snaps(image, 1, "snap2-rename", size2));
-    ASSERT_EQ(0, image.snap_exists2("snap2", &exists));
-    ASSERT_FALSE(exists);
-    ASSERT_EQ(0, image.snap_exists2("snap2-rename", &exists));
-    ASSERT_TRUE(exists);
-    ASSERT_EQ(0, image.snap_remove("snap2-rename"));
-    ASSERT_EQ(0, test_ls_snaps(image, 0));
-  }
-
-  ioctx.close();
-}
-
-void simple_write_cb(rbd_completion_t cb, void *arg)
-{
-  printf("write completion cb called!\n");
-}
-
-void simple_read_cb(rbd_completion_t cb, void *arg)
-{
-  printf("read completion cb called!\n");
-}
-
-void aio_write_test_data_and_poll(rbd_image_t image, int fd, const char *test_data,
-                                  uint64_t off, size_t len, uint32_t iohint, bool *passed)
-{
-  rbd_completion_t comp;
-  uint64_t data = 0x123;
-  rbd_aio_create_completion((void*)&data, (rbd_callback_t) simple_write_cb, &comp);
-  printf("created completion\n");
-  printf("started write\n");
-  if (iohint)
-    rbd_aio_write2(image, off, len, test_data, comp, iohint);
-  else
-    rbd_aio_write(image, off, len, test_data, comp);
-
-  struct pollfd pfd;
-  pfd.fd = fd;
-  pfd.events = POLLIN;
-
-  ASSERT_EQ(1, poll(&pfd, 1, -1));
-  ASSERT_TRUE(pfd.revents & POLLIN);
-
-  rbd_completion_t comps[1];
-  ASSERT_EQ(1, rbd_poll_io_events(image, comps, 1));
-  uint64_t count;
-  ASSERT_EQ(static_cast<ssize_t>(sizeof(count)),
-            read(fd, &count, sizeof(count)));
-  int r = rbd_aio_get_return_value(comps[0]);
-  ASSERT_TRUE(rbd_aio_is_complete(comps[0]));
-  ASSERT_TRUE(*(uint64_t*)rbd_aio_get_arg(comps[0]) == data);
-  printf("return value is: %d\n", r);
-  ASSERT_EQ(0, r);
-  printf("finished write\n");
-  rbd_aio_release(comps[0]);
-  *passed = true;
-}
-
-void aio_write_test_data(rbd_image_t image, const char *test_data, uint64_t off, size_t len, uint32_t iohint, bool *passed)
-{
-  rbd_completion_t comp;
-  rbd_aio_create_completion(NULL, (rbd_callback_t) simple_write_cb, &comp);
-  printf("created completion\n");
-  if (iohint)
-    rbd_aio_write2(image, off, len, test_data, comp, iohint);
-  else
-    rbd_aio_write(image, off, len, test_data, comp);
-  printf("started write\n");
-  rbd_aio_wait_for_complete(comp);
-  int r = rbd_aio_get_return_value(comp);
-  printf("return value is: %d\n", r);
-  ASSERT_EQ(0, r);
-  printf("finished write\n");
-  rbd_aio_release(comp);
-  *passed = true;
-}
-
-void write_test_data(rbd_image_t image, const char *test_data, uint64_t off, size_t len, uint32_t iohint, bool *passed)
-{
-  ssize_t written;
-  if (iohint)
-    written = rbd_write2(image, off, len, test_data, iohint);
-  else
-    written = rbd_write(image, off, len, test_data);
-  printf("wrote: %d\n", (int) written);
-  ASSERT_EQ(len, static_cast<size_t>(written));
-  *passed = true;
-}
-
-void aio_discard_test_data(rbd_image_t image, uint64_t off, uint64_t len, bool *passed)
-{
-  rbd_completion_t comp;
-  rbd_aio_create_completion(NULL, (rbd_callback_t) simple_write_cb, &comp);
-  rbd_aio_discard(image, off, len, comp);
-  rbd_aio_wait_for_complete(comp);
-  int r = rbd_aio_get_return_value(comp);
-  ASSERT_EQ(0, r);
-  printf("aio discard: %d~%d = %d\n", (int)off, (int)len, (int)r);
-  rbd_aio_release(comp);
-  *passed = true;
-}
-
-void discard_test_data(rbd_image_t image, uint64_t off, size_t len, bool *passed)
-{
-  ssize_t written;
-  written = rbd_discard(image, off, len);
-  printf("discard: %d~%d = %d\n", (int)off, (int)len, (int)written);
-  ASSERT_EQ(len, static_cast<size_t>(written));
-  *passed = true;
-}
-
-void aio_read_test_data_and_poll(rbd_image_t image, int fd, const char *expected,
-                                 uint64_t off, size_t len, uint32_t iohint, bool *passed)
-{
-  rbd_completion_t comp;
-  char *result = (char *)malloc(len + 1);
-
-  ASSERT_NE(static_cast<char *>(NULL), result);
-  rbd_aio_create_completion(NULL, (rbd_callback_t) simple_read_cb, &comp);
-  printf("created completion\n");
-  printf("started read\n");
-  if (iohint)
-    rbd_aio_read2(image, off, len, result, comp, iohint);
-  else
-    rbd_aio_read(image, off, len, result, comp);
-
-  struct pollfd pfd;
-  pfd.fd = fd;
-  pfd.events = POLLIN;
-
-  ASSERT_EQ(1, poll(&pfd, 1, -1));
-  ASSERT_TRUE(pfd.revents & POLLIN);
-
-  rbd_completion_t comps[1];
-  ASSERT_EQ(1, rbd_poll_io_events(image, comps, 1));
-  uint64_t count;
-  ASSERT_EQ(static_cast<ssize_t>(sizeof(count)),
-            read(fd, &count, sizeof(count)));
-
-  int r = rbd_aio_get_return_value(comps[0]);
-  ASSERT_TRUE(rbd_aio_is_complete(comps[0]));
-  printf("return value is: %d\n", r);
-  ASSERT_EQ(len, static_cast<size_t>(r));
-  rbd_aio_release(comps[0]);
-  if (memcmp(result, expected, len)) {
-    printf("read: %s\nexpected: %s\n", result, expected);
-    ASSERT_EQ(0, memcmp(result, expected, len));
-  }
-  free(result);
-  *passed = true;
-}
-
-void aio_read_test_data(rbd_image_t image, const char *expected, uint64_t off, size_t len, uint32_t iohint, bool *passed)
-{
-  rbd_completion_t comp;
-  char *result = (char *)malloc(len + 1);
-
-  ASSERT_NE(static_cast<char *>(NULL), result);
-  rbd_aio_create_completion(NULL, (rbd_callback_t) simple_read_cb, &comp);
-  printf("created completion\n");
-  if (iohint)
-    rbd_aio_read2(image, off, len, result, comp, iohint);
-  else
-    rbd_aio_read(image, off, len, result, comp);
-  printf("started read\n");
-  rbd_aio_wait_for_complete(comp);
-  int r = rbd_aio_get_return_value(comp);
-  printf("return value is: %d\n", r);
-  ASSERT_EQ(len, static_cast<size_t>(r));
-  rbd_aio_release(comp);
-  if (memcmp(result, expected, len)) {
-    printf("read: %s\nexpected: %s\n", result, expected);
-    ASSERT_EQ(0, memcmp(result, expected, len));
-  }
-  free(result);
-  *passed = true;
-}
-
-void read_test_data(rbd_image_t image, const char *expected, uint64_t off, size_t len, uint32_t iohint, bool *passed)
-{
-  ssize_t read;
-  char *result = (char *)malloc(len + 1);
-
-  ASSERT_NE(static_cast<char *>(NULL), result);
-  if (iohint)
-    read = rbd_read2(image, off, len, result, iohint);
-  else
-    read = rbd_read(image, off, len, result);
-  printf("read: %d\n", (int) read);
-  ASSERT_EQ(len, static_cast<size_t>(read));
-  result[len] = '\0';
-  if (memcmp(result, expected, len)) {
-    printf("read: %s\nexpected: %s\n", result, expected);
-    ASSERT_EQ(0, memcmp(result, expected, len));
-  }
-  free(result);
-  *passed = true;
-}
-
-void aio_writesame_test_data(rbd_image_t image, const char *test_data, uint64_t off, uint64_t len,
-                             uint64_t data_len, uint32_t iohint, bool *passed)
-{
-  rbd_completion_t comp;
-  rbd_aio_create_completion(NULL, (rbd_callback_t) simple_write_cb, &comp);
-  printf("created completion\n");
-  int r;
-  r = rbd_aio_writesame(image, off, len, test_data, data_len, comp, iohint);
-  printf("started writesame\n");
-  if (len % data_len) {
-    ASSERT_EQ(-EINVAL, r);
-    printf("expected fail, finished writesame\n");
-    rbd_aio_release(comp);
-    *passed = true;
-    return;
-  }
-
-  rbd_aio_wait_for_complete(comp);
-  r = rbd_aio_get_return_value(comp);
-  printf("return value is: %d\n", r);
-  ASSERT_EQ(0, r);
-  printf("finished writesame\n");
-  rbd_aio_release(comp);
-
-  //verify data
-  printf("to verify the data\n");
-  ssize_t read;
-  char *result = (char *)malloc(data_len+ 1);
-  ASSERT_NE(static_cast<char *>(NULL), result);
-  uint64_t left = len;
-  while (left > 0) {
-    read = rbd_read(image, off, data_len, result);
-    ASSERT_EQ(data_len, static_cast<size_t>(read));
-    result[data_len] = '\0';
-    if (memcmp(result, test_data, data_len)) {
-      printf("read: %d ~ %d\n", (int) off, (int) read);
-      printf("read: %s\nexpected: %s\n", result, test_data);
-      ASSERT_EQ(0, memcmp(result, test_data, data_len));
-    }
-    off += data_len;
-    left -= data_len;
-  }
-  ASSERT_EQ(0U, left);
-  free(result);
-  printf("verified\n");
-
-  *passed = true;
-}
-
-void writesame_test_data(rbd_image_t image, const char *test_data, uint64_t off, uint64_t len,
-                         uint64_t data_len, uint32_t iohint, bool *passed)
-{
-  ssize_t written;
-  written = rbd_writesame(image, off, len, test_data, data_len, iohint);
-  if (len % data_len) {
-    ASSERT_EQ(-EINVAL, written);
-    printf("expected fail, finished writesame\n");
-    *passed = true;
-    return;
-  }
-  ASSERT_EQ(len, static_cast<size_t>(written));
-  printf("wrote: %d\n", (int) written);
-
-  //verify data
-  printf("to verify the data\n");
-  ssize_t read;
-  char *result = (char *)malloc(data_len+ 1);
-  ASSERT_NE(static_cast<char *>(NULL), result);
-  uint64_t left = len;
-  while (left > 0) {
-    read = rbd_read(image, off, data_len, result);
-    ASSERT_EQ(data_len, static_cast<size_t>(read));
-    result[data_len] = '\0';
-    if (memcmp(result, test_data, data_len)) {
-      printf("read: %d ~ %d\n", (int) off, (int) read);
-      printf("read: %s\nexpected: %s\n", result, test_data);
-      ASSERT_EQ(0, memcmp(result, test_data, data_len));
-    }
-    off += data_len;
-    left -= data_len;
-  }
-  ASSERT_EQ(0U, left);
-  free(result);
-  printf("verified\n");
-
-  *passed = true;
-}
-
-void aio_compare_and_write_test_data(rbd_image_t image, const char *cmp_data,
-                                     const char *test_data, uint64_t off,
-                                     size_t len, uint32_t iohint, bool *passed)
-{
-  rbd_completion_t comp;
-  rbd_aio_create_completion(NULL, (rbd_callback_t) simple_write_cb, &comp);
-  printf("created completion\n");
-
-  uint64_t mismatch_offset;
-  rbd_aio_compare_and_write(image, off, len, cmp_data, test_data, comp, &mismatch_offset, iohint);
-  printf("started aio compare and write\n");
-  rbd_aio_wait_for_complete(comp);
-  int r = rbd_aio_get_return_value(comp);
-  printf("return value is: %d\n", r);
-  ASSERT_EQ(0, r);
-  printf("finished aio compare and write\n");
-  rbd_aio_release(comp);
-  *passed = true;
-}
-
-void compare_and_write_test_data(rbd_image_t image, const char *cmp_data,
-                                 const char *test_data, uint64_t off, size_t len,
-                                 uint64_t *mismatch_off, uint32_t iohint, bool *passed)
-{
-  printf("start compare and write\n");
-  ssize_t written;
-  written = rbd_compare_and_write(image, off, len, cmp_data, test_data, mismatch_off, iohint);
-  printf("compare and  wrote: %d\n", (int) written);
-  ASSERT_EQ(len, static_cast<size_t>(written));
-  *passed = true;
-}
-
-
-TEST_F(TestLibRBD, TestIO)
-{
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  bool skip_discard = is_skip_partial_discard_enabled();
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  char test_data[TEST_IO_SIZE + 1];
-  char zero_data[TEST_IO_SIZE + 1];
-  char mismatch_data[TEST_IO_SIZE + 1];
-  int i;
-  uint64_t mismatch_offset;
-
-  for (i = 0; i < TEST_IO_SIZE; ++i) {
-    test_data[i] = (char) (rand() % (126 - 33) + 33);
-  }
-  test_data[TEST_IO_SIZE] = '\0';
-  memset(zero_data, 0, sizeof(zero_data));
-  memset(mismatch_data, 9, sizeof(mismatch_data));
-
-  for (i = 0; i < 5; ++i)
-    ASSERT_PASSED(write_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE, 0);
-
-  for (i = 5; i < 10; ++i)
-    ASSERT_PASSED(aio_write_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE, 0);
-
-  for (i = 0; i < 5; ++i)
-    ASSERT_PASSED(compare_and_write_test_data, image, test_data, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE, &mismatch_offset, 0);
-
-  for (i = 5; i < 10; ++i)
-    ASSERT_PASSED(aio_compare_and_write_test_data, image, test_data, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE, 0);
-
-  for (i = 0; i < 5; ++i)
-    ASSERT_PASSED(read_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE, 0);
-
-  for (i = 5; i < 10; ++i)
-    ASSERT_PASSED(aio_read_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE, 0);
-
-  // discard 2nd, 4th sections.
-  ASSERT_PASSED(discard_test_data, image, TEST_IO_SIZE, TEST_IO_SIZE);
-  ASSERT_PASSED(aio_discard_test_data, image, TEST_IO_SIZE*3, TEST_IO_SIZE);
-
-  ASSERT_PASSED(read_test_data, image, test_data,  0, TEST_IO_SIZE, 0);
-  ASSERT_PASSED(read_test_data, image, skip_discard ? test_data : zero_data,
-               TEST_IO_SIZE, TEST_IO_SIZE, 0);
-  ASSERT_PASSED(read_test_data, image, test_data,  TEST_IO_SIZE*2, TEST_IO_SIZE, 0);
-  ASSERT_PASSED(read_test_data, image, skip_discard ? test_data : zero_data,
-               TEST_IO_SIZE*3, TEST_IO_SIZE, 0);
-  ASSERT_PASSED(read_test_data, image, test_data,  TEST_IO_SIZE*4, TEST_IO_SIZE, 0);
-
-  for (i = 0; i < 15; ++i) {
-    if (i % 3 == 2) {
-      ASSERT_PASSED(writesame_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32 + i, TEST_IO_SIZE, 0);
-      ASSERT_PASSED(writesame_test_data, image, zero_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32 + i, TEST_IO_SIZE, 0);
-    } else if (i % 3 == 1) {
-      ASSERT_PASSED(writesame_test_data, image, test_data, TEST_IO_SIZE + i, TEST_IO_SIZE * i * 32, TEST_IO_SIZE, 0);
-      ASSERT_PASSED(writesame_test_data, image, zero_data, TEST_IO_SIZE + i, TEST_IO_SIZE * i * 32, TEST_IO_SIZE, 0);
-    } else {
-      ASSERT_PASSED(writesame_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32, TEST_IO_SIZE, 0);
-      ASSERT_PASSED(writesame_test_data, image, zero_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32, TEST_IO_SIZE, 0);
-    }
-  }
-  for (i = 0; i < 15; ++i) {
-    if (i % 3 == 2) {
-      ASSERT_PASSED(aio_writesame_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32 + i, TEST_IO_SIZE, 0);
-      ASSERT_PASSED(aio_writesame_test_data, image, zero_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32 + i, TEST_IO_SIZE, 0);
-    } else if (i % 3 == 1) {
-      ASSERT_PASSED(aio_writesame_test_data, image, test_data, TEST_IO_SIZE + i, TEST_IO_SIZE * i * 32, TEST_IO_SIZE, 0);
-      ASSERT_PASSED(aio_writesame_test_data, image, zero_data, TEST_IO_SIZE + i, TEST_IO_SIZE * i * 32, TEST_IO_SIZE, 0);
-    } else {
-      ASSERT_PASSED(aio_writesame_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32, TEST_IO_SIZE, 0);
-      ASSERT_PASSED(aio_writesame_test_data, image, zero_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32, TEST_IO_SIZE, 0);
-    }
-  }
-
-  rbd_image_info_t info;
-  rbd_completion_t comp;
-  ASSERT_EQ(0, rbd_stat(image, &info, sizeof(info)));
-  // can't read or write starting past end
-  ASSERT_EQ(-EINVAL, rbd_write(image, info.size, 1, test_data));
-  ASSERT_EQ(-EINVAL, rbd_read(image, info.size, 1, test_data));
-  // reading through end returns amount up to end
-  ASSERT_EQ(10, rbd_read(image, info.size - 10, 100, test_data));
-  // writing through end returns amount up to end
-  ASSERT_EQ(10, rbd_write(image, info.size - 10, 100, test_data));
-
-  rbd_aio_create_completion(NULL, (rbd_callback_t) simple_read_cb, &comp);
-  ASSERT_EQ(0, rbd_aio_write(image, info.size, 1, test_data, comp));
-  ASSERT_EQ(0, rbd_aio_wait_for_complete(comp));
-  ASSERT_EQ(-EINVAL, rbd_aio_get_return_value(comp));
-  rbd_aio_release(comp);
-
-  rbd_aio_create_completion(NULL, (rbd_callback_t) simple_read_cb, &comp);
-  ASSERT_EQ(0, rbd_aio_read(image, info.size, 1, test_data, comp));
-  ASSERT_EQ(0, rbd_aio_wait_for_complete(comp));
-  ASSERT_EQ(-EINVAL, rbd_aio_get_return_value(comp));
-  rbd_aio_release(comp);
-
-  ASSERT_PASSED(write_test_data, image, zero_data, 0, TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_NOCACHE);
-  ASSERT_EQ(-EILSEQ, rbd_compare_and_write(image, 0, TEST_IO_SIZE, mismatch_data, mismatch_data, &mismatch_offset, 0));
-  ASSERT_EQ(0U, mismatch_offset);
-  rbd_aio_create_completion(NULL, (rbd_callback_t) simple_read_cb, &comp);
-  ASSERT_EQ(0, rbd_aio_compare_and_write(image, 0, TEST_IO_SIZE, mismatch_data, mismatch_data, comp, &mismatch_offset, 0));
-  ASSERT_EQ(0, rbd_aio_wait_for_complete(comp));
-  ASSERT_EQ(0U, mismatch_offset);
-  rbd_aio_release(comp);
-
-  ASSERT_PASSED(validate_object_map, image);
-  ASSERT_EQ(0, rbd_close(image));
-
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, TestIOWithIOHint)
-{
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  bool skip_discard = is_skip_partial_discard_enabled();
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  char test_data[TEST_IO_SIZE + 1];
-  char zero_data[TEST_IO_SIZE + 1];
-  char mismatch_data[TEST_IO_SIZE + 1];
-  int i;
-  uint64_t mismatch_offset;
-
-  for (i = 0; i < TEST_IO_SIZE; ++i) {
-    test_data[i] = (char) (rand() % (126 - 33) + 33);
-  }
-  test_data[TEST_IO_SIZE] = '\0';
-  memset(zero_data, 0, sizeof(zero_data));
-  memset(mismatch_data, 9, sizeof(mismatch_data));
-
-  for (i = 0; i < 5; ++i)
-    ASSERT_PASSED(write_test_data, image, test_data, TEST_IO_SIZE * i,
-                 TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_NOCACHE);
-
-  for (i = 5; i < 10; ++i)
-    ASSERT_PASSED(aio_write_test_data, image, test_data, TEST_IO_SIZE * i,
-                 TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-
-  for (i = 0; i < 5; ++i)
-    ASSERT_PASSED(compare_and_write_test_data, image, test_data, test_data,
-      TEST_IO_SIZE * i, TEST_IO_SIZE, &mismatch_offset, LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-
-  for (i = 5; i < 10; ++i)
-    ASSERT_PASSED(aio_compare_and_write_test_data, image, test_data, test_data,
-      TEST_IO_SIZE * i, TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-
-  for (i = 0; i < 5; ++i)
-    ASSERT_PASSED(read_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE,
-                 LIBRADOS_OP_FLAG_FADVISE_SEQUENTIAL);
-
-  for (i = 5; i < 10; ++i)
-    ASSERT_PASSED(aio_read_test_data, image, test_data, TEST_IO_SIZE * i,
-                 TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_SEQUENTIAL|LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-
-  // discard 2nd, 4th sections.
-  ASSERT_PASSED(discard_test_data, image, TEST_IO_SIZE, TEST_IO_SIZE);
-  ASSERT_PASSED(aio_discard_test_data, image, TEST_IO_SIZE*3, TEST_IO_SIZE);
-
-  ASSERT_PASSED(read_test_data, image, test_data,  0, TEST_IO_SIZE,
-               LIBRADOS_OP_FLAG_FADVISE_SEQUENTIAL);
-  ASSERT_PASSED(read_test_data, image, skip_discard ? test_data : zero_data,
-               TEST_IO_SIZE, TEST_IO_SIZE,
-               LIBRADOS_OP_FLAG_FADVISE_SEQUENTIAL);
-  ASSERT_PASSED(read_test_data, image, test_data,  TEST_IO_SIZE*2, TEST_IO_SIZE,
-               LIBRADOS_OP_FLAG_FADVISE_SEQUENTIAL);
-  ASSERT_PASSED(read_test_data, image, skip_discard ? test_data : zero_data,
-               TEST_IO_SIZE*3, TEST_IO_SIZE,
-               LIBRADOS_OP_FLAG_FADVISE_SEQUENTIAL);
-  ASSERT_PASSED(read_test_data, image, test_data,  TEST_IO_SIZE*4, TEST_IO_SIZE, 0);
-
-  for (i = 0; i < 15; ++i) {
-    if (i % 3 == 2) {
-      ASSERT_PASSED(writesame_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32 + i,
-                    TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_NOCACHE);
-      ASSERT_PASSED(writesame_test_data, image, zero_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32 + i,
-                    TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_NOCACHE);
-    } else if (i % 3 == 1) {
-      ASSERT_PASSED(writesame_test_data, image, test_data, TEST_IO_SIZE + i, TEST_IO_SIZE * i * 32,
-                    TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_NOCACHE);
-      ASSERT_PASSED(writesame_test_data, image, zero_data, TEST_IO_SIZE + i, TEST_IO_SIZE * i * 32,
-                    TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_NOCACHE);
-    } else {
-      ASSERT_PASSED(writesame_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32,
-                    TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_NOCACHE);
-      ASSERT_PASSED(writesame_test_data, image, zero_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32,
-                    TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_NOCACHE);
-    }
-  }
-  for (i = 0; i < 15; ++i) {
-    if (i % 3 == 2) {
-      ASSERT_PASSED(aio_writesame_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32 + i,
-                    TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-      ASSERT_PASSED(aio_writesame_test_data, image, zero_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32 + i,
-                    TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-    } else if (i % 3 == 1) {
-      ASSERT_PASSED(aio_writesame_test_data, image, test_data, TEST_IO_SIZE + i, TEST_IO_SIZE * i * 32,
-                    TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-      ASSERT_PASSED(aio_writesame_test_data, image, zero_data, TEST_IO_SIZE + i, TEST_IO_SIZE * i * 32,
-                    TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-    } else {
-      ASSERT_PASSED(aio_writesame_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32,
-                    TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-      ASSERT_PASSED(aio_writesame_test_data, image, zero_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32,
-                    TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-    }
-  }
-
-  rbd_image_info_t info;
-  rbd_completion_t comp;
-  ASSERT_EQ(0, rbd_stat(image, &info, sizeof(info)));
-  // can't read or write starting past end
-  ASSERT_EQ(-EINVAL, rbd_write(image, info.size, 1, test_data));
-  ASSERT_EQ(-EINVAL, rbd_read(image, info.size, 1, test_data));
-  // reading through end returns amount up to end
-  ASSERT_EQ(10, rbd_read2(image, info.size - 10, 100, test_data,
-                         LIBRADOS_OP_FLAG_FADVISE_NOCACHE));
-  // writing through end returns amount up to end
-  ASSERT_EQ(10, rbd_write2(image, info.size - 10, 100, test_data,
-                           LIBRADOS_OP_FLAG_FADVISE_DONTNEED));
-
-  rbd_aio_create_completion(NULL, (rbd_callback_t) simple_read_cb, &comp);
-  ASSERT_EQ(0, rbd_aio_read2(image, info.size, 1, test_data, comp,
-                            LIBRADOS_OP_FLAG_FADVISE_DONTNEED));
-  ASSERT_EQ(0, rbd_aio_wait_for_complete(comp));
-  ASSERT_EQ(-EINVAL, rbd_aio_get_return_value(comp));
-  rbd_aio_release(comp);
-
-  ASSERT_PASSED(write_test_data, image, zero_data, 0, TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_NOCACHE);
-  ASSERT_EQ(-EILSEQ, rbd_compare_and_write(image, 0, TEST_IO_SIZE, mismatch_data, mismatch_data,
-                                           &mismatch_offset, LIBRADOS_OP_FLAG_FADVISE_DONTNEED));
-  ASSERT_EQ(0U, mismatch_offset);
-  rbd_aio_create_completion(NULL, (rbd_callback_t) simple_read_cb, &comp);
-  ASSERT_EQ(0, rbd_aio_compare_and_write(image, 0, TEST_IO_SIZE, mismatch_data, mismatch_data,
-                                         comp, &mismatch_offset, LIBRADOS_OP_FLAG_FADVISE_DONTNEED));
-  ASSERT_EQ(0, rbd_aio_wait_for_complete(comp));
-  ASSERT_EQ(0U, mismatch_offset);
-  rbd_aio_release(comp);
-
-  ASSERT_PASSED(validate_object_map, image);
-  ASSERT_EQ(0, rbd_close(image));
-
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, TestDataPoolIO)
-{
-  REQUIRE_FORMAT_V2();
-
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  std::string data_pool_name = create_pool(true);
-
-  bool skip_discard = is_skip_partial_discard_enabled();
-
-  rbd_image_t image;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-
-  bool old_format;
-  uint64_t features;
-  ASSERT_EQ(0, get_features(&old_format, &features));
-  ASSERT_FALSE(old_format);
-
-  rbd_image_options_t image_options;
-  rbd_image_options_create(&image_options);
-  BOOST_SCOPE_EXIT( (&image_options) ) {
-    rbd_image_options_destroy(image_options);
-  } BOOST_SCOPE_EXIT_END;
-
-  ASSERT_EQ(0, rbd_image_options_set_uint64(image_options,
-                                            RBD_IMAGE_OPTION_FEATURES,
-                                            features));
-  ASSERT_EQ(0, rbd_image_options_set_string(image_options,
-                                            RBD_IMAGE_OPTION_DATA_POOL,
-                                            data_pool_name.c_str()));
-
-  ASSERT_EQ(0, rbd_create4(ioctx, name.c_str(), size, image_options));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-  ASSERT_NE(-1, rbd_get_data_pool_id(image));
-
-  char test_data[TEST_IO_SIZE + 1];
-  char zero_data[TEST_IO_SIZE + 1];
-  int i;
-
-  for (i = 0; i < TEST_IO_SIZE; ++i) {
-    test_data[i] = (char) (rand() % (126 - 33) + 33);
-  }
-  test_data[TEST_IO_SIZE] = '\0';
-  memset(zero_data, 0, sizeof(zero_data));
-
-  for (i = 0; i < 5; ++i)
-    ASSERT_PASSED(write_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE, 0);
-
-  for (i = 5; i < 10; ++i)
-    ASSERT_PASSED(aio_write_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE, 0);
-
-  for (i = 0; i < 5; ++i)
-    ASSERT_PASSED(read_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE, 0);
-
-  for (i = 5; i < 10; ++i)
-    ASSERT_PASSED(aio_read_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE, 0);
-
-  // discard 2nd, 4th sections.
-  ASSERT_PASSED(discard_test_data, image, TEST_IO_SIZE, TEST_IO_SIZE);
-  ASSERT_PASSED(aio_discard_test_data, image, TEST_IO_SIZE*3, TEST_IO_SIZE);
-
-  ASSERT_PASSED(read_test_data, image, test_data,  0, TEST_IO_SIZE, 0);
-  ASSERT_PASSED(read_test_data, image, skip_discard ? test_data : zero_data,
-               TEST_IO_SIZE, TEST_IO_SIZE, 0);
-  ASSERT_PASSED(read_test_data, image, test_data,  TEST_IO_SIZE*2, TEST_IO_SIZE, 0);
-  ASSERT_PASSED(read_test_data, image, skip_discard ? test_data : zero_data,
-               TEST_IO_SIZE*3, TEST_IO_SIZE, 0);
-  ASSERT_PASSED(read_test_data, image, test_data,  TEST_IO_SIZE*4, TEST_IO_SIZE, 0);
-
-  rbd_image_info_t info;
-  rbd_completion_t comp;
-  ASSERT_EQ(0, rbd_stat(image, &info, sizeof(info)));
-  // can't read or write starting past end
-  ASSERT_EQ(-EINVAL, rbd_write(image, info.size, 1, test_data));
-  ASSERT_EQ(-EINVAL, rbd_read(image, info.size, 1, test_data));
-  // reading through end returns amount up to end
-  ASSERT_EQ(10, rbd_read(image, info.size - 10, 100, test_data));
-  // writing through end returns amount up to end
-  ASSERT_EQ(10, rbd_write(image, info.size - 10, 100, test_data));
-
-  rbd_aio_create_completion(NULL, (rbd_callback_t) simple_read_cb, &comp);
-  ASSERT_EQ(0, rbd_aio_write(image, info.size, 1, test_data, comp));
-  ASSERT_EQ(0, rbd_aio_wait_for_complete(comp));
-  ASSERT_EQ(-EINVAL, rbd_aio_get_return_value(comp));
-  rbd_aio_release(comp);
-
-  rbd_aio_create_completion(NULL, (rbd_callback_t) simple_read_cb, &comp);
-  ASSERT_EQ(0, rbd_aio_read(image, info.size, 1, test_data, comp));
-  ASSERT_EQ(0, rbd_aio_wait_for_complete(comp));
-  ASSERT_EQ(-EINVAL, rbd_aio_get_return_value(comp));
-  rbd_aio_release(comp);
-
-  ASSERT_PASSED(validate_object_map, image);
-  ASSERT_EQ(0, rbd_close(image));
-
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, TestScatterGatherIO)
-{
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t size = 20 << 20;
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  std::string write_buffer("This is a test");
-  struct iovec bad_iovs[] = {
-    {.iov_base = NULL, .iov_len = static_cast<size_t>(-1)}
-  };
-  struct iovec write_iovs[] = {
-    {.iov_base = &write_buffer[0],  .iov_len = 5},
-    {.iov_base = &write_buffer[5],  .iov_len = 3},
-    {.iov_base = &write_buffer[8],  .iov_len = 2},
-    {.iov_base = &write_buffer[10], .iov_len = 4}
-  };
-
-  rbd_completion_t comp;
-  rbd_aio_create_completion(NULL, NULL, &comp);
-  ASSERT_EQ(-EINVAL, rbd_aio_writev(image, write_iovs, 0, 0, comp));
-  ASSERT_EQ(-EINVAL, rbd_aio_writev(image, bad_iovs, 1, 0, comp));
-  ASSERT_EQ(0, rbd_aio_writev(image, write_iovs,
-                              sizeof(write_iovs) / sizeof(struct iovec),
-                              1<<order, comp));
-  ASSERT_EQ(0, rbd_aio_wait_for_complete(comp));
-  ASSERT_EQ(0, rbd_aio_get_return_value(comp));
-  rbd_aio_release(comp);
-
-  std::string read_buffer(write_buffer.size(), '1');
-  struct iovec read_iovs[] = {
-    {.iov_base = &read_buffer[0],  .iov_len = 4},
-    {.iov_base = &read_buffer[8],  .iov_len = 4},
-    {.iov_base = &read_buffer[12], .iov_len = 2}
-  };
-
-  rbd_aio_create_completion(NULL, NULL, &comp);
-  ASSERT_EQ(-EINVAL, rbd_aio_readv(image, read_iovs, 0, 0, comp));
-  ASSERT_EQ(-EINVAL, rbd_aio_readv(image, bad_iovs, 1, 0, comp));
-  ASSERT_EQ(0, rbd_aio_readv(image, read_iovs,
-                             sizeof(read_iovs) / sizeof(struct iovec),
-                             1<<order, comp));
-  ASSERT_EQ(0, rbd_aio_wait_for_complete(comp));
-  ASSERT_EQ(10, rbd_aio_get_return_value(comp));
-  rbd_aio_release(comp);
-  ASSERT_EQ("This1111 is a ", read_buffer);
-
-  std::string linear_buffer(write_buffer.size(), '1');
-  struct iovec linear_iovs[] = {
-    {.iov_base = &linear_buffer[4], .iov_len = 4}
-  };
-  rbd_aio_create_completion(NULL, NULL, &comp);
-  ASSERT_EQ(0, rbd_aio_readv(image, linear_iovs,
-                             sizeof(linear_iovs) / sizeof(struct iovec),
-                             1<<order, comp));
-  ASSERT_EQ(0, rbd_aio_wait_for_complete(comp));
-  ASSERT_EQ(4, rbd_aio_get_return_value(comp));
-  rbd_aio_release(comp);
-  ASSERT_EQ("1111This111111", linear_buffer);
-
-  ASSERT_PASSED(validate_object_map, image);
-  ASSERT_EQ(0, rbd_close(image));
-
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, TestEmptyDiscard)
-{
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t size = 20 << 20;
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  ASSERT_PASSED(aio_discard_test_data, image, 0, 1*1024*1024);
-  ASSERT_PASSED(aio_discard_test_data, image, 0, 4*1024*1024);
-  ASSERT_PASSED(aio_discard_test_data, image, 3*1024*1024, 1*1024*1024);
-
-  ASSERT_PASSED(validate_object_map, image);
-  ASSERT_EQ(0, rbd_close(image));
-
-  rados_ioctx_destroy(ioctx);
-}
-
-
-void simple_write_cb_pp(librbd::completion_t cb, void *arg)
-{
-  cout << "write completion cb called!" << std::endl;
-}
-
-void simple_read_cb_pp(librbd::completion_t cb, void *arg)
-{
-  cout << "read completion cb called!" << std::endl;
-}
-
-void aio_write_test_data(librbd::Image& image, const char *test_data,
-                        off_t off, uint32_t iohint, bool *passed)
-{
-  ceph::bufferlist bl;
-  bl.append(test_data, strlen(test_data));
-  librbd::RBD::AioCompletion *comp = new librbd::RBD::AioCompletion(NULL, (librbd::callback_t) simple_write_cb_pp);
-  printf("created completion\n");
-  if (iohint)
-    image.aio_write2(off, strlen(test_data), bl, comp, iohint);
-  else
-    image.aio_write(off, strlen(test_data), bl, comp);
-  printf("started write\n");
-  comp->wait_for_complete();
-  int r = comp->get_return_value();
-  printf("return value is: %d\n", r);
-  ASSERT_EQ(0, r);
-  printf("finished write\n");
-  comp->release();
-  *passed = true;
-}
-
-void aio_discard_test_data(librbd::Image& image, off_t off, size_t len, bool *passed)
-{
-  librbd::RBD::AioCompletion *comp = new librbd::RBD::AioCompletion(NULL, (librbd::callback_t) simple_write_cb_pp);
-  image.aio_discard(off, len, comp);
-  comp->wait_for_complete();
-  int r = comp->get_return_value();
-  ASSERT_EQ(0, r);
-  comp->release();
-  *passed = true;
-}
-
-void write_test_data(librbd::Image& image, const char *test_data, off_t off, uint32_t iohint, bool *passed)
-{
-  size_t written;
-  size_t len = strlen(test_data);
-  ceph::bufferlist bl;
-  bl.append(test_data, len);
-  if (iohint)
-    written = image.write2(off, len, bl, iohint);
-  else
-    written = image.write(off, len, bl);
-  printf("wrote: %u\n", (unsigned int) written);
-  ASSERT_EQ(bl.length(), written);
-  *passed = true;
-}
-
-void discard_test_data(librbd::Image& image, off_t off, size_t len, bool *passed)
-{
-  size_t written;
-  written = image.discard(off, len);
-  printf("discard: %u~%u\n", (unsigned)off, (unsigned)len);
-  ASSERT_EQ(len, written);
-  *passed = true;
-}
-
-void aio_read_test_data(librbd::Image& image, const char *expected, off_t off, size_t expected_len, uint32_t iohint, bool *passed)
-{
-  librbd::RBD::AioCompletion *comp = new librbd::RBD::AioCompletion(NULL, (librbd::callback_t) simple_read_cb_pp);
-  ceph::bufferlist bl;
-  printf("created completion\n");
-  if (iohint)
-    image.aio_read2(off, expected_len, bl, comp, iohint);
-  else
-    image.aio_read(off, expected_len, bl, comp);
-  printf("started read\n");
-  comp->wait_for_complete();
-  int r = comp->get_return_value();
-  printf("return value is: %d\n", r);
-  ASSERT_EQ(TEST_IO_SIZE, r);
-  ASSERT_EQ(0, memcmp(expected, bl.c_str(), TEST_IO_SIZE));
-  printf("finished read\n");
-  comp->release();
-  *passed = true;
-}
-
-void read_test_data(librbd::Image& image, const char *expected, off_t off, size_t expected_len, uint32_t iohint, bool *passed)
-{
-  int read;
-  size_t len = expected_len;
-  ceph::bufferlist bl;
-  if (iohint)
-    read = image.read2(off, len, bl, iohint);
-  else
-    read = image.read(off, len, bl);
-  ASSERT_TRUE(read >= 0);
-  std::string bl_str(bl.c_str(), read);
-
-  printf("read: %u\n", (unsigned int) read);
-  int result = memcmp(bl_str.c_str(), expected, expected_len);
-  if (result != 0) {
-    printf("read: %s\nexpected: %s\n", bl_str.c_str(), expected);
-    ASSERT_EQ(0, result);
-  }
-  *passed = true;
-}
-
-void aio_writesame_test_data(librbd::Image& image, const char *test_data, off_t off,
-                             size_t len, size_t data_len, uint32_t iohint, bool *passed)
-{
-  ceph::bufferlist bl;
-  bl.append(test_data, data_len);
-  librbd::RBD::AioCompletion *comp = new librbd::RBD::AioCompletion(NULL, (librbd::callback_t) simple_write_cb_pp);
-  printf("created completion\n");
-  int r;
-  r = image.aio_writesame(off, len, bl, comp, iohint);
-  printf("started writesame\n");
-  if (len % data_len) {
-    ASSERT_EQ(-EINVAL, r);
-    printf("expected fail, finished writesame\n");
-    comp->release();
-    *passed = true;
-    return;
-  }
-
-  comp->wait_for_complete();
-  r = comp->get_return_value();
-  printf("return value is: %d\n", r);
-  ASSERT_EQ(0, r);
-  printf("finished writesame\n");
-  comp->release();
-
-  //verify data
-  printf("to verify the data\n");
-  int read;
-  uint64_t left = len;
-  while (left > 0) {
-    ceph::bufferlist bl;
-    read = image.read(off, data_len, bl);
-    ASSERT_EQ(data_len, static_cast<size_t>(read));
-    std::string bl_str(bl.c_str(), read);
-    int result = memcmp(bl_str.c_str(), test_data, data_len);
-    if (result !=0 ) {
-      printf("read: %u ~ %u\n", (unsigned int) off, (unsigned int) read);
-      printf("read: %s\nexpected: %s\n", bl_str.c_str(), test_data);
-      ASSERT_EQ(0, result);
-    }
-    off += data_len;
-    left -= data_len;
-  }
-  ASSERT_EQ(0U, left);
-  printf("verified\n");
-
-  *passed = true;
-}
-
-void writesame_test_data(librbd::Image& image, const char *test_data, off_t off,
-                         ssize_t len, size_t data_len, uint32_t iohint,
-                         bool *passed)
-{
-  ssize_t written;
-  ceph::bufferlist bl;
-  bl.append(test_data, data_len);
-  written = image.writesame(off, len, bl, iohint);
-  if (len % data_len) {
-    ASSERT_EQ(-EINVAL, written);
-    printf("expected fail, finished writesame\n");
-    *passed = true;
-    return;
-  }
-  ASSERT_EQ(len, written);
-  printf("wrote: %u\n", (unsigned int) written);
-  *passed = true;
-
-  //verify data
-  printf("to verify the data\n");
-  int read;
-  uint64_t left = len;
-  while (left > 0) {
-    ceph::bufferlist bl;
-    read = image.read(off, data_len, bl);
-    ASSERT_EQ(data_len, static_cast<size_t>(read));
-    std::string bl_str(bl.c_str(), read);
-    int result = memcmp(bl_str.c_str(), test_data, data_len);
-    if (result !=0 ) {
-      printf("read: %u ~ %u\n", (unsigned int) off, (unsigned int) read);
-      printf("read: %s\nexpected: %s\n", bl_str.c_str(), test_data);
-      ASSERT_EQ(0, result);
-    }
-    off += data_len;
-    left -= data_len;
-  }
-  ASSERT_EQ(0U, left);
-  printf("verified\n");
-
-  *passed = true;
-}
-
-void aio_compare_and_write_test_data(librbd::Image& image, const char *cmp_data,
-                                     const char *test_data, off_t off, ssize_t len,
-                                     uint32_t iohint, bool *passed)
-{
-  ceph::bufferlist cmp_bl;
-  cmp_bl.append(cmp_data, strlen(cmp_data));
-  ceph::bufferlist test_bl;
-  test_bl.append(test_data, strlen(test_data));
-  librbd::RBD::AioCompletion *comp = new librbd::RBD::AioCompletion(NULL, (librbd::callback_t) simple_write_cb_pp);
-  printf("created completion\n");
-
-  uint64_t mismatch_offset;
-  image.aio_compare_and_write(off, len, cmp_bl, test_bl, comp, &mismatch_offset, iohint);
-  printf("started aio compare and write\n");
-  comp->wait_for_complete();
-  int r = comp->get_return_value();
-  printf("return value is: %d\n", r);
-  ASSERT_EQ(0, r);
-  printf("finished aio compare and write\n");
-  comp->release();
-  *passed = true;
-}
-
-void compare_and_write_test_data(librbd::Image& image, const char *cmp_data, const char *test_data,
-                                 off_t off, ssize_t len, uint64_t *mismatch_off, uint32_t iohint, bool *passed)
-{
-  size_t written;
-  ceph::bufferlist cmp_bl;
-  cmp_bl.append(cmp_data, strlen(cmp_data));
-  ceph::bufferlist test_bl;
-  test_bl.append(test_data, strlen(test_data));
-  printf("start compare and write\n");
-  written = image.compare_and_write(off, len, cmp_bl, test_bl, mismatch_off, iohint);
-  printf("compare and  wrote: %d\n", (int) written);
-  ASSERT_EQ(len, static_cast<ssize_t>(written));
-  *passed = true;
-}
-
-TEST_F(TestLibRBD, TestIOPP)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  bool skip_discard = is_skip_partial_discard_enabled();
-
-  {
-    librbd::RBD rbd;
-    librbd::Image image;
-    int order = 0;
-    std::string name = get_temp_image_name();
-    uint64_t size = 2 << 20;
-
-    ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-    ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-    char test_data[TEST_IO_SIZE + 1];
-    char zero_data[TEST_IO_SIZE + 1];
-    int i;
-    uint64_t mismatch_offset;
-
-    for (i = 0; i < TEST_IO_SIZE; ++i) {
-      test_data[i] = (char) (rand() % (126 - 33) + 33);
-    }
-    test_data[TEST_IO_SIZE] = '\0';
-    memset(zero_data, 0, sizeof(zero_data));
-
-    for (i = 0; i < 5; ++i)
-      ASSERT_PASSED(write_test_data, image, test_data, strlen(test_data) * i, 0);
-
-    for (i = 5; i < 10; ++i)
-      ASSERT_PASSED(aio_write_test_data, image, test_data, strlen(test_data) * i, 0);
-
-    for (i = 0; i < 5; ++i)
-      ASSERT_PASSED(compare_and_write_test_data, image, test_data, test_data, TEST_IO_SIZE * i,
-        TEST_IO_SIZE, &mismatch_offset, 0);
-
-    for (i = 5; i < 10; ++i)
-      ASSERT_PASSED(aio_compare_and_write_test_data, image, test_data, test_data, TEST_IO_SIZE * i,
-        TEST_IO_SIZE, 0);
-
-    for (i = 0; i < 5; ++i)
-      ASSERT_PASSED(read_test_data, image, test_data, strlen(test_data) * i, TEST_IO_SIZE, 0);
-
-    for (i = 5; i < 10; ++i)
-      ASSERT_PASSED(aio_read_test_data, image, test_data, strlen(test_data) * i, TEST_IO_SIZE, 0);
-
-    // discard 2nd, 4th sections.
-    ASSERT_PASSED(discard_test_data, image, TEST_IO_SIZE, TEST_IO_SIZE);
-    ASSERT_PASSED(aio_discard_test_data, image, TEST_IO_SIZE*3, TEST_IO_SIZE);
-
-    ASSERT_PASSED(read_test_data, image, test_data,  0, TEST_IO_SIZE, 0);
-    ASSERT_PASSED(read_test_data, image, skip_discard ? test_data : zero_data,
-                 TEST_IO_SIZE, TEST_IO_SIZE, 0);
-    ASSERT_PASSED(read_test_data, image, test_data,  TEST_IO_SIZE*2, TEST_IO_SIZE, 0);
-    ASSERT_PASSED(read_test_data, image, skip_discard ? test_data : zero_data,
-                 TEST_IO_SIZE*3, TEST_IO_SIZE, 0);
-    ASSERT_PASSED(read_test_data, image, test_data,  TEST_IO_SIZE*4, TEST_IO_SIZE, 0);
-
-    for (i = 0; i < 15; ++i) {
-      if (i % 3 == 2) {
-        ASSERT_PASSED(writesame_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32 + i, TEST_IO_SIZE, 0);
-        ASSERT_PASSED(writesame_test_data, image, zero_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32 + i, TEST_IO_SIZE, 0);
-      } else if (i % 3 == 1) {
-        ASSERT_PASSED(writesame_test_data, image, test_data, TEST_IO_SIZE + i, TEST_IO_SIZE * i * 32, TEST_IO_SIZE, 0);
-        ASSERT_PASSED(writesame_test_data, image, zero_data, TEST_IO_SIZE + i, TEST_IO_SIZE * i * 32, TEST_IO_SIZE, 0);
-      } else {
-        ASSERT_PASSED(writesame_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32, TEST_IO_SIZE, 0);
-        ASSERT_PASSED(writesame_test_data, image, zero_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32, TEST_IO_SIZE, 0);
-      }
-    }
-    for (i = 0; i < 15; ++i) {
-      if (i % 3 == 2) {
-        ASSERT_PASSED(aio_writesame_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32 + i, TEST_IO_SIZE, 0);
-        ASSERT_PASSED(aio_writesame_test_data, image, zero_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32 + i, TEST_IO_SIZE, 0);
-      } else if (i % 3 == 1) {
-        ASSERT_PASSED(aio_writesame_test_data, image, test_data, TEST_IO_SIZE + i, TEST_IO_SIZE * i * 32, TEST_IO_SIZE, 0);
-        ASSERT_PASSED(aio_writesame_test_data, image, zero_data, TEST_IO_SIZE + i, TEST_IO_SIZE * i * 32, TEST_IO_SIZE, 0);
-      } else {
-        ASSERT_PASSED(aio_writesame_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32, TEST_IO_SIZE, 0);
-        ASSERT_PASSED(aio_writesame_test_data, image, zero_data, TEST_IO_SIZE * i, TEST_IO_SIZE * i * 32, TEST_IO_SIZE, 0);
-      }
-    }
-
-    ASSERT_PASSED(validate_object_map, image);
-  }
-
-  ioctx.close();
-}
-
-TEST_F(TestLibRBD, TestIOPPWithIOHint)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  {
-    librbd::RBD rbd;
-    librbd::Image image;
-    int order = 0;
-    std::string name = get_temp_image_name();
-    uint64_t size = 2 << 20;
-
-    ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-    ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-    char test_data[TEST_IO_SIZE + 1];
-    char zero_data[TEST_IO_SIZE + 1];
-    test_data[TEST_IO_SIZE] = '\0';
-    int i;
-
-    for (i = 0; i < TEST_IO_SIZE; ++i) {
-      test_data[i] = (char) (rand() % (126 - 33) + 33);
-    }
-    memset(zero_data, 0, sizeof(zero_data));
-
-    for (i = 0; i < 5; ++i)
-      ASSERT_PASSED(write_test_data, image, test_data, strlen(test_data) * i,
-                   LIBRADOS_OP_FLAG_FADVISE_NOCACHE);
-
-    for (i = 5; i < 10; ++i)
-      ASSERT_PASSED(aio_write_test_data, image, test_data, strlen(test_data) * i,
-                   LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-
-    ASSERT_PASSED(read_test_data, image, test_data, strlen(test_data),
-                 TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_RANDOM);
-
-    for (i = 5; i < 10; ++i)
-      ASSERT_PASSED(aio_read_test_data, image, test_data, strlen(test_data) * i,
-                   TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_SEQUENTIAL|LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-
-    for (i = 0; i < 15; ++i) {
-      if (i % 3 == 2) {
-        ASSERT_PASSED(writesame_test_data, image, test_data, TEST_IO_SIZE * i,
-                      TEST_IO_SIZE * i * 32 + i, TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_NOCACHE);
-        ASSERT_PASSED(writesame_test_data, image, zero_data, TEST_IO_SIZE * i,
-                      TEST_IO_SIZE * i * 32 + i, TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_NOCACHE);
-      } else if (i % 3 == 1) {
-        ASSERT_PASSED(writesame_test_data, image, test_data, TEST_IO_SIZE + i,
-                      TEST_IO_SIZE * i * 32, TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_NOCACHE);
-        ASSERT_PASSED(writesame_test_data, image, zero_data, TEST_IO_SIZE + i,
-                      TEST_IO_SIZE * i * 32, TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_NOCACHE);
-      } else {
-        ASSERT_PASSED(writesame_test_data, image, test_data, TEST_IO_SIZE * i,
-                      TEST_IO_SIZE * i * 32, TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_NOCACHE);
-        ASSERT_PASSED(writesame_test_data, image, zero_data, TEST_IO_SIZE * i,
-                      TEST_IO_SIZE * i * 32, TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_NOCACHE);
-      }
-    }
-    for (i = 0; i < 15; ++i) {
-      if (i % 3 == 2) {
-        ASSERT_PASSED(aio_writesame_test_data, image, test_data, TEST_IO_SIZE * i,
-                      TEST_IO_SIZE * i * 32 + i, TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-        ASSERT_PASSED(aio_writesame_test_data, image, zero_data, TEST_IO_SIZE * i,
-                      TEST_IO_SIZE * i * 32 + i, TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-      } else if (i % 3 == 1) {
-        ASSERT_PASSED(aio_writesame_test_data, image, test_data, TEST_IO_SIZE + i,
-                      TEST_IO_SIZE * i * 32, TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-        ASSERT_PASSED(aio_writesame_test_data, image, zero_data, TEST_IO_SIZE + i,
-                      TEST_IO_SIZE * i * 32, TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-      } else {
-        ASSERT_PASSED(aio_writesame_test_data, image, test_data, TEST_IO_SIZE * i,
-                      TEST_IO_SIZE * i * 32, TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-        ASSERT_PASSED(aio_writesame_test_data, image, zero_data, TEST_IO_SIZE * i,
-                      TEST_IO_SIZE * i * 32, TEST_IO_SIZE, LIBRADOS_OP_FLAG_FADVISE_DONTNEED);
-      }
-    }
-
-    ASSERT_PASSED(validate_object_map, image);
-  }
-
-  ioctx.close();
-}
-
-
-
-TEST_F(TestLibRBD, TestIOToSnapshot)
-{
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t isize = 2 << 20;
-  
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), isize, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  int i, r;
-  rbd_image_t image_at_snap;
-  char orig_data[TEST_IO_TO_SNAP_SIZE + 1];
-  char test_data[TEST_IO_TO_SNAP_SIZE + 1];
-
-  for (i = 0; i < TEST_IO_TO_SNAP_SIZE; ++i)
-    test_data[i] = (char) (i + 48);
-  test_data[TEST_IO_TO_SNAP_SIZE] = '\0';
-  orig_data[TEST_IO_TO_SNAP_SIZE] = '\0';
-
-  r = rbd_read(image, 0, TEST_IO_TO_SNAP_SIZE, orig_data);
-  ASSERT_EQ(r, TEST_IO_TO_SNAP_SIZE);
-
-  ASSERT_EQ(0, test_ls_snaps(image, 0));
-  ASSERT_EQ(0, rbd_snap_create(image, "orig"));
-  ASSERT_EQ(1, test_ls_snaps(image, 1, "orig", isize));
-  ASSERT_PASSED(read_test_data, image, orig_data, 0, TEST_IO_TO_SNAP_SIZE, 0);
-
-  printf("write test data!\n");
-  ASSERT_PASSED(write_test_data, image, test_data, 0, TEST_IO_TO_SNAP_SIZE, 0);
-  ASSERT_EQ(0, rbd_snap_create(image, "written"));
-  ASSERT_EQ(2, test_ls_snaps(image, 2, "orig", isize, "written", isize));
-
-  ASSERT_PASSED(read_test_data, image, test_data, 0, TEST_IO_TO_SNAP_SIZE, 0);
-
-  rbd_snap_set(image, "orig");
-  ASSERT_PASSED(read_test_data, image, orig_data, 0, TEST_IO_TO_SNAP_SIZE, 0);
-
-  rbd_snap_set(image, "written");
-  ASSERT_PASSED(read_test_data, image, test_data, 0, TEST_IO_TO_SNAP_SIZE, 0);
-
-  rbd_snap_set(image, "orig");
-
-  r = rbd_write(image, 0, TEST_IO_TO_SNAP_SIZE, test_data);
-  printf("write to snapshot returned %d\n", r);
-  ASSERT_LT(r, 0);
-  cout << strerror(-r) << std::endl;
-
-  ASSERT_PASSED(read_test_data, image, orig_data, 0, TEST_IO_TO_SNAP_SIZE, 0);
-  rbd_snap_set(image, "written");
-  ASSERT_PASSED(read_test_data, image, test_data, 0, TEST_IO_TO_SNAP_SIZE, 0);
-
-  r = rbd_snap_rollback(image, "orig");
-  ASSERT_EQ(r, -EROFS);
-
-  r = rbd_snap_set(image, NULL);
-  ASSERT_EQ(r, 0);
-  r = rbd_snap_rollback(image, "orig");
-  ASSERT_EQ(r, 0);
-
-  ASSERT_PASSED(write_test_data, image, test_data, 0, TEST_IO_TO_SNAP_SIZE, 0);
-
-  rbd_flush(image);
-
-  printf("opening testimg@orig\n");
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image_at_snap, "orig"));
-  ASSERT_PASSED(read_test_data, image_at_snap, orig_data, 0, TEST_IO_TO_SNAP_SIZE, 0);
-  r = rbd_write(image_at_snap, 0, TEST_IO_TO_SNAP_SIZE, test_data);
-  printf("write to snapshot returned %d\n", r);
-  ASSERT_LT(r, 0);
-  cout << strerror(-r) << std::endl;
-  ASSERT_EQ(0, rbd_close(image_at_snap));
-
-  ASSERT_EQ(2, test_ls_snaps(image, 2, "orig", isize, "written", isize));
-  ASSERT_EQ(0, rbd_snap_remove(image, "written"));
-  ASSERT_EQ(1, test_ls_snaps(image, 1, "orig", isize));
-  ASSERT_EQ(0, rbd_snap_remove(image, "orig"));
-  ASSERT_EQ(0, test_ls_snaps(image, 0));
-
-  ASSERT_PASSED(validate_object_map, image);
-  ASSERT_EQ(0, rbd_close(image));
-
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, TestClone)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING);
-
-  rados_ioctx_t ioctx;
-  rbd_image_info_t pinfo, cinfo;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  bool old_format;
-  uint64_t features;
-  rbd_image_t parent, child;
-  int order = 0;
-
-  ASSERT_EQ(0, get_features(&old_format, &features));
-  ASSERT_FALSE(old_format);
-
-  std::string parent_name = get_temp_image_name();
-  std::string child_name = get_temp_image_name();
-
-  // make a parent to clone from
-  ASSERT_EQ(0, create_image_full(ioctx, parent_name.c_str(), 4<<20, &order,
-                                false, features));
-  ASSERT_EQ(0, rbd_open(ioctx, parent_name.c_str(), &parent, NULL));
-  printf("made parent image \"parent\"\n");
-
-  char *data = (char *)"testdata";
-  ASSERT_EQ((ssize_t)strlen(data), rbd_write(parent, 0, strlen(data), data));
-
-  // can't clone a non-snapshot, expect failure
-  EXPECT_NE(0, clone_image(ioctx, parent, parent_name.c_str(), NULL, ioctx,
-                           child_name.c_str(), features, &order));
-
-  // verify that there is no parent info on "parent"
-  ASSERT_EQ(-ENOENT, rbd_get_parent_info(parent, NULL, 0, NULL, 0, NULL, 0));
-  printf("parent has no parent info\n");
-
-  // create a snapshot, reopen as the parent we're interested in
-  ASSERT_EQ(0, rbd_snap_create(parent, "parent_snap"));
-  printf("made snapshot \"parent@parent_snap\"\n");
-  ASSERT_EQ(0, rbd_close(parent));
-  ASSERT_EQ(0, rbd_open(ioctx, parent_name.c_str(), &parent, "parent_snap"));
-
-  ASSERT_EQ(-EINVAL, clone_image(ioctx, parent, parent_name.c_str(), "parent_snap",
-                                 ioctx, child_name.c_str(), features, &order));
-
-  // unprotected image should fail unprotect
-  ASSERT_EQ(-EINVAL, rbd_snap_unprotect(parent, "parent_snap"));
-  printf("can't unprotect an unprotected snap\n");
-
-  ASSERT_EQ(0, rbd_snap_protect(parent, "parent_snap"));
-  // protecting again should fail
-  ASSERT_EQ(-EBUSY, rbd_snap_protect(parent, "parent_snap"));
-  printf("can't protect a protected snap\n");
-
-  // This clone and open should work
-  ASSERT_EQ(0, clone_image(ioctx, parent, parent_name.c_str(), "parent_snap",
-                           ioctx, child_name.c_str(), features, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, child_name.c_str(), &child, NULL));
-  printf("made and opened clone \"child\"\n");
-
-  // check read
-  ASSERT_PASSED(read_test_data, child, data, 0, strlen(data), 0);
-
-  // check write
-  ASSERT_EQ((ssize_t)strlen(data), rbd_write(child, 20, strlen(data), data));
-  ASSERT_PASSED(read_test_data, child, data, 20, strlen(data), 0);
-  ASSERT_PASSED(read_test_data, child, data, 0, strlen(data), 0);
-
-  // check attributes
-  ASSERT_EQ(0, rbd_stat(parent, &pinfo, sizeof(pinfo)));
-  ASSERT_EQ(0, rbd_stat(child, &cinfo, sizeof(cinfo)));
-  EXPECT_EQ(cinfo.size, pinfo.size);
-  uint64_t overlap;
-  rbd_get_overlap(child, &overlap);
-  EXPECT_EQ(overlap, pinfo.size);
-  EXPECT_EQ(cinfo.obj_size, pinfo.obj_size);
-  EXPECT_EQ(cinfo.order, pinfo.order);
-  printf("sizes and overlaps are good between parent and child\n");
-
-  // sizing down child results in changing overlap and size, not parent size
-  ASSERT_EQ(0, rbd_resize(child, 2UL<<20));
-  ASSERT_EQ(0, rbd_stat(child, &cinfo, sizeof(cinfo)));
-  rbd_get_overlap(child, &overlap);
-  ASSERT_EQ(overlap, 2UL<<20);
-  ASSERT_EQ(cinfo.size, 2UL<<20);
-  ASSERT_EQ(0, rbd_resize(child, 4UL<<20));
-  ASSERT_EQ(0, rbd_stat(child, &cinfo, sizeof(cinfo)));
-  rbd_get_overlap(child, &overlap);
-  ASSERT_EQ(overlap, 2UL<<20);
-  ASSERT_EQ(cinfo.size, 4UL<<20);
-  printf("sized down clone, changed overlap\n");
-
-  // sizing back up doesn't change that
-  ASSERT_EQ(0, rbd_resize(child, 5UL<<20));
-  ASSERT_EQ(0, rbd_stat(child, &cinfo, sizeof(cinfo)));
-  rbd_get_overlap(child, &overlap);
-  ASSERT_EQ(overlap, 2UL<<20);
-  ASSERT_EQ(cinfo.size, 5UL<<20);
-  ASSERT_EQ(0, rbd_stat(parent, &pinfo, sizeof(pinfo)));
-  printf("parent info: size %lld obj_size %lld parent_pool %lld\n",
-        (unsigned long long)pinfo.size, (unsigned long long)pinfo.obj_size,
-        (unsigned long long)pinfo.parent_pool);
-  ASSERT_EQ(pinfo.size, 4UL<<20);
-  printf("sized up clone, changed size but not overlap or parent's size\n");
-  
-  ASSERT_PASSED(validate_object_map, child);
-  ASSERT_EQ(0, rbd_close(child));
-
-  ASSERT_PASSED(validate_object_map, parent);
-  ASSERT_EQ(-EBUSY, rbd_snap_remove(parent, "parent_snap"));
-  printf("can't remove parent while child still exists\n");
-  ASSERT_EQ(0, rbd_remove(ioctx, child_name.c_str()));
-  ASSERT_EQ(-EBUSY, rbd_snap_remove(parent, "parent_snap"));
-  printf("can't remove parent while still protected\n");
-  ASSERT_EQ(0, rbd_snap_unprotect(parent, "parent_snap"));
-  ASSERT_EQ(0, rbd_snap_remove(parent, "parent_snap"));
-  printf("removed parent snap after unprotecting\n");
-
-  ASSERT_EQ(0, rbd_close(parent));
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, TestClone2)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING);
-
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  bool old_format;
-  uint64_t features;
-  rbd_image_t parent, child;
-  int order = 0;
-
-  ASSERT_EQ(0, get_features(&old_format, &features));
-  ASSERT_FALSE(old_format);
-
-  std::string parent_name = get_temp_image_name();
-  std::string child_name = get_temp_image_name();
-
-  // make a parent to clone from
-  ASSERT_EQ(0, create_image_full(ioctx, parent_name.c_str(), 4<<20, &order,
-                                false, features));
-  ASSERT_EQ(0, rbd_open(ioctx, parent_name.c_str(), &parent, NULL));
-  printf("made parent image \"parent\"\n");
-
-  char *data = (char *)"testdata";
-  char *childata = (char *)"childata";
-  ASSERT_EQ((ssize_t)strlen(data), rbd_write(parent, 0, strlen(data), data));
-  ASSERT_EQ((ssize_t)strlen(data), rbd_write(parent, 12, strlen(data), data));
-
-  // can't clone a non-snapshot, expect failure
-  EXPECT_NE(0, clone_image(ioctx, parent, parent_name.c_str(), NULL, ioctx,
-                           child_name.c_str(), features, &order));
-
-  // verify that there is no parent info on "parent"
-  ASSERT_EQ(-ENOENT, rbd_get_parent_info(parent, NULL, 0, NULL, 0, NULL, 0));
-  printf("parent has no parent info\n");
-
-  // create a snapshot, reopen as the parent we're interested in
-  ASSERT_EQ(0, rbd_snap_create(parent, "parent_snap"));
-  printf("made snapshot \"parent@parent_snap\"\n");
-  ASSERT_EQ(0, rbd_close(parent));
-  ASSERT_EQ(0, rbd_open(ioctx, parent_name.c_str(), &parent, "parent_snap"));
-
-  ASSERT_EQ(-EINVAL, clone_image(ioctx, parent, parent_name.c_str(), "parent_snap",
-                                 ioctx, child_name.c_str(), features, &order));
-
-  // unprotected image should fail unprotect
-  ASSERT_EQ(-EINVAL, rbd_snap_unprotect(parent, "parent_snap"));
-  printf("can't unprotect an unprotected snap\n");
-
-  ASSERT_EQ(0, rbd_snap_protect(parent, "parent_snap"));
-  // protecting again should fail
-  ASSERT_EQ(-EBUSY, rbd_snap_protect(parent, "parent_snap"));
-  printf("can't protect a protected snap\n");
-
-  // This clone and open should work
-  ASSERT_EQ(0, clone_image(ioctx, parent, parent_name.c_str(), "parent_snap",
-                           ioctx, child_name.c_str(), features, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, child_name.c_str(), &child, NULL));
-  printf("made and opened clone \"child\"\n");
-
-  // write something in
-  ASSERT_EQ((ssize_t)strlen(childata), rbd_write(child, 20, strlen(childata), childata));
-
-  char test[strlen(data) * 2];
-  ASSERT_EQ((ssize_t)strlen(data), rbd_read(child, 20, strlen(data), test));
-  ASSERT_EQ(0, memcmp(test, childata, strlen(childata)));
-
-  // overlap
-  ASSERT_EQ((ssize_t)sizeof(test), rbd_read(child, 20 - strlen(data), sizeof(test), test));
-  ASSERT_EQ(0, memcmp(test, data, strlen(data)));
-  ASSERT_EQ(0, memcmp(test + strlen(data), childata, strlen(childata)));
-
-  // all parent
-  ASSERT_EQ((ssize_t)sizeof(test), rbd_read(child, 0, sizeof(test), test));
-  ASSERT_EQ(0, memcmp(test, data, strlen(data)));
-
-  ASSERT_PASSED(validate_object_map, child);
-  ASSERT_PASSED(validate_object_map, parent);
-
-  ASSERT_EQ(0, rbd_close(child));
-  ASSERT_EQ(0, rbd_close(parent));
-  rados_ioctx_destroy(ioctx);
-}
-
-static void test_list_children(rbd_image_t image, ssize_t num_expected, ...)
-{
-  va_list ap;
-  va_start(ap, num_expected);
-  size_t pools_len = 100;
-  size_t children_len = 100;
-  char *pools = NULL;
-  char *children = NULL;
-  ssize_t num_children;
-
-  do {
-    free(pools);
-    free(children);
-    pools = (char *) malloc(pools_len);
-    children = (char *) malloc(children_len);
-    num_children = rbd_list_children(image, pools, &pools_len,
-                                    children, &children_len);
-  } while (num_children == -ERANGE);
-
-  ASSERT_EQ(num_expected, num_children);
-  for (ssize_t i = num_expected; i > 0; --i) {
-    char *expected_pool = va_arg(ap, char *);
-    char *expected_image = va_arg(ap, char *);
-    char *pool = pools;
-    char *image = children;
-    bool found = 0;
-    printf("\ntrying to find %s/%s\n", expected_pool, expected_image);
-    for (ssize_t j = 0; j < num_children; ++j) {
-      printf("checking %s/%s\n", pool, image);
-      if (strcmp(expected_pool, pool) == 0 &&
-         strcmp(expected_image, image) == 0) {
-       printf("found child %s/%s\n\n", pool, image);
-       found = 1;
-       break;
-      }
-      pool += strlen(pool) + 1;
-      image += strlen(image) + 1;
-      if (j == num_children - 1) {
-       ASSERT_EQ(pool - pools - 1, (ssize_t) pools_len);
-       ASSERT_EQ(image - children - 1, (ssize_t) children_len);
-      }
-    }
-    ASSERT_TRUE(found);
-  }
-  va_end(ap);
-
-  if (pools)
-    free(pools);
-  if (children)
-    free(children);
-}
-
-TEST_F(TestLibRBD, ListChildren)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING);
-
-  rados_ioctx_t ioctx1, ioctx2;
-  string pool_name1 = create_pool(true);
-  string pool_name2 = create_pool(true);
-  ASSERT_NE("", pool_name2);
-
-  rados_ioctx_create(_cluster, pool_name1.c_str(), &ioctx1);
-  rados_ioctx_create(_cluster, pool_name2.c_str(), &ioctx2);
-
-  bool old_format;
-  uint64_t features;
-  rbd_image_t parent;
-  int order = 0;
-
-  ASSERT_EQ(0, get_features(&old_format, &features));
-  ASSERT_FALSE(old_format);
-
-  std::string parent_name = get_temp_image_name();
-  std::string child_name1 = get_temp_image_name();
-  std::string child_name2 = get_temp_image_name();
-  std::string child_name3 = get_temp_image_name();
-  std::string child_name4 = get_temp_image_name();
-
-  // make a parent to clone from
-  ASSERT_EQ(0, create_image_full(ioctx1, parent_name.c_str(), 4<<20, &order,
-                                false, features));
-  ASSERT_EQ(0, rbd_open(ioctx1, parent_name.c_str(), &parent, NULL));
-  // create a snapshot, reopen as the parent we're interested in
-  ASSERT_EQ(0, rbd_snap_create(parent, "parent_snap"));
-  ASSERT_EQ(0, rbd_snap_set(parent, "parent_snap"));
-  ASSERT_EQ(0, rbd_snap_protect(parent, "parent_snap"));
-
-  ASSERT_EQ(0, rbd_close(parent));
-  ASSERT_EQ(0, rbd_open(ioctx1, parent_name.c_str(), &parent, "parent_snap"));
-
-  ASSERT_EQ(0, clone_image(ioctx1, parent, parent_name.c_str(), "parent_snap",
-                           ioctx2, child_name1.c_str(), features, &order));
-  test_list_children(parent, 1, pool_name2.c_str(), child_name1.c_str());
-
-  ASSERT_EQ(0, clone_image(ioctx1, parent, parent_name.c_str(), "parent_snap",
-                           ioctx1, child_name2.c_str(), features, &order));
-  test_list_children(parent, 2, pool_name2.c_str(), child_name1.c_str(),
-                    pool_name1.c_str(), child_name2.c_str());
-
-  ASSERT_EQ(0, clone_image(ioctx1, parent, parent_name.c_str(), "parent_snap",
-                           ioctx2, child_name3.c_str(), features, &order));
-  test_list_children(parent, 3, pool_name2.c_str(), child_name1.c_str(),
-                    pool_name1.c_str(), child_name2.c_str(),
-                    pool_name2.c_str(), child_name3.c_str());
-
-  ASSERT_EQ(0, clone_image(ioctx1, parent, parent_name.c_str(), "parent_snap",
-                           ioctx2, child_name4.c_str(), features, &order));
-  test_list_children(parent, 4, pool_name2.c_str(), child_name1.c_str(),
-                    pool_name1.c_str(), child_name2.c_str(),
-                    pool_name2.c_str(), child_name3.c_str(),
-                    pool_name2.c_str(), child_name4.c_str());
-
-  ASSERT_EQ(0, rbd_remove(ioctx2, child_name1.c_str()));
-  test_list_children(parent, 3,
-                    pool_name1.c_str(), child_name2.c_str(),
-                    pool_name2.c_str(), child_name3.c_str(),
-                    pool_name2.c_str(), child_name4.c_str());
-
-  ASSERT_EQ(0, rbd_remove(ioctx2, child_name3.c_str()));
-  test_list_children(parent, 2,
-                    pool_name1.c_str(), child_name2.c_str(),
-                    pool_name2.c_str(), child_name4.c_str());
-
-  ASSERT_EQ(0, rbd_remove(ioctx2, child_name4.c_str()));
-  test_list_children(parent, 1,
-                    pool_name1.c_str(), child_name2.c_str());
-
-  ASSERT_EQ(0, rbd_remove(ioctx1, child_name2.c_str()));
-  test_list_children(parent, 0);
-
-  ASSERT_EQ(0, rbd_snap_unprotect(parent, "parent_snap"));
-  ASSERT_EQ(0, rbd_snap_remove(parent, "parent_snap"));
-  ASSERT_EQ(0, rbd_close(parent));
-  ASSERT_EQ(0, rbd_remove(ioctx1, parent_name.c_str()));
-  rados_ioctx_destroy(ioctx1);
-  rados_ioctx_destroy(ioctx2);
-}
-
-TEST_F(TestLibRBD, ListChildrenTiered)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING);
-
-  string pool_name1 = m_pool_name;
-  string pool_name2 = create_pool(true);
-  string pool_name3 = create_pool(true);
-  ASSERT_NE("", pool_name2);
-  ASSERT_NE("", pool_name3);
-
-  std::string cmdstr = "{\"prefix\": \"osd tier add\", \"pool\": \"" +
-     pool_name1 + "\", \"tierpool\":\"" + pool_name3 + "\", \"force_nonempty\":\"\"}";
-  char *cmd[1];
-  cmd[0] = (char *)cmdstr.c_str();
-  ASSERT_EQ(0, rados_mon_command(_cluster, (const char **)cmd, 1, "", 0, NULL, 0, NULL, 0));
-
-  cmdstr = "{\"prefix\": \"osd tier cache-mode\", \"pool\": \"" +
-     pool_name3 + "\", \"mode\":\"writeback\"}";
-  cmd[0] = (char *)cmdstr.c_str();
-  ASSERT_EQ(0, rados_mon_command(_cluster, (const char **)cmd, 1, "", 0, NULL, 0, NULL, 0));
-
-  cmdstr = "{\"prefix\": \"osd tier set-overlay\", \"pool\": \"" +
-     pool_name1 + "\", \"overlaypool\":\"" + pool_name3 + "\"}";
-  cmd[0] = (char *)cmdstr.c_str();
-  ASSERT_EQ(0, rados_mon_command(_cluster, (const char **)cmd, 1, "", 0, NULL, 0, NULL, 0));
-
-  EXPECT_EQ(0, rados_wait_for_latest_osdmap(_cluster));
-
-  string parent_name = get_temp_image_name();
-  string child_name1 = get_temp_image_name();
-  string child_name2 = get_temp_image_name();
-  string child_name3 = get_temp_image_name();
-  string child_name4 = get_temp_image_name();
-
-  rados_ioctx_t ioctx1, ioctx2;
-  rados_ioctx_create(_cluster, pool_name1.c_str(), &ioctx1);
-  rados_ioctx_create(_cluster, pool_name2.c_str(), &ioctx2);
-
-  bool old_format;
-  uint64_t features;
-  rbd_image_t parent;
-  int order = 0;
-
-  ASSERT_EQ(0, get_features(&old_format, &features));
-  ASSERT_FALSE(old_format);
-
-  // make a parent to clone from
-  ASSERT_EQ(0, create_image_full(ioctx1, parent_name.c_str(), 4<<20, &order,
-                                false, features));
-  ASSERT_EQ(0, rbd_open(ioctx1, parent_name.c_str(), &parent, NULL));
-  // create a snapshot, reopen as the parent we're interested in
-  ASSERT_EQ(0, rbd_snap_create(parent, "parent_snap"));
-  ASSERT_EQ(0, rbd_snap_set(parent, "parent_snap"));
-  ASSERT_EQ(0, rbd_snap_protect(parent, "parent_snap"));
-
-  ASSERT_EQ(0, rbd_close(parent));
-  ASSERT_EQ(0, rbd_open(ioctx1, parent_name.c_str(), &parent, "parent_snap"));
-
-  ASSERT_EQ(0, clone_image(ioctx1, parent, parent_name.c_str(), "parent_snap",
-                           ioctx2, child_name1.c_str(), features, &order));
-  test_list_children(parent, 1, pool_name2.c_str(), child_name1.c_str());
-
-  ASSERT_EQ(0, clone_image(ioctx1, parent, parent_name.c_str(), "parent_snap",
-                           ioctx1, child_name2.c_str(), features, &order));
-  test_list_children(parent, 2, pool_name2.c_str(), child_name1.c_str(),
-                    pool_name1.c_str(), child_name2.c_str());
-
-  // read from the cache to populate it
-  rbd_image_t tier_image;
-  ASSERT_EQ(0, rbd_open(ioctx1, child_name2.c_str(), &tier_image, NULL));
-  size_t len = 4 * 1024 * 1024;
-  char* buf = (char*)malloc(len);
-  ssize_t size = rbd_read(tier_image, 0, len, buf);
-  ASSERT_GT(size, 0);
-  free(buf);
-  ASSERT_EQ(0, rbd_close(tier_image));
-
-  ASSERT_EQ(0, clone_image(ioctx1, parent, parent_name.c_str(), "parent_snap",
-                           ioctx2, child_name3.c_str(), features, &order));
-  test_list_children(parent, 3, pool_name2.c_str(), child_name1.c_str(),
-                    pool_name1.c_str(), child_name2.c_str(),
-                    pool_name2.c_str(), child_name3.c_str());
-
-  ASSERT_EQ(0, clone_image(ioctx1, parent, parent_name.c_str(), "parent_snap",
-                           ioctx2, child_name4.c_str(), features, &order));
-  test_list_children(parent, 4, pool_name2.c_str(), child_name1.c_str(),
-                    pool_name1.c_str(), child_name2.c_str(),
-                    pool_name2.c_str(), child_name3.c_str(),
-                    pool_name2.c_str(), child_name4.c_str());
-
-  ASSERT_EQ(0, rbd_remove(ioctx2, child_name1.c_str()));
-  test_list_children(parent, 3,
-                    pool_name1.c_str(), child_name2.c_str(),
-                    pool_name2.c_str(), child_name3.c_str(),
-                    pool_name2.c_str(), child_name4.c_str());
-
-  ASSERT_EQ(0, rbd_remove(ioctx2, child_name3.c_str()));
-  test_list_children(parent, 2,
-                    pool_name1.c_str(), child_name2.c_str(),
-                    pool_name2.c_str(), child_name4.c_str());
-
-  ASSERT_EQ(0, rbd_remove(ioctx2, child_name4.c_str()));
-  test_list_children(parent, 1,
-                    pool_name1.c_str(), child_name2.c_str());
-
-  ASSERT_EQ(0, rbd_remove(ioctx1, child_name2.c_str()));
-  test_list_children(parent, 0);
-
-  ASSERT_EQ(0, rbd_snap_unprotect(parent, "parent_snap"));
-  ASSERT_EQ(0, rbd_snap_remove(parent, "parent_snap"));
-  ASSERT_EQ(0, rbd_close(parent));
-  ASSERT_EQ(0, rbd_remove(ioctx1, parent_name.c_str()));
-  rados_ioctx_destroy(ioctx1);
-  rados_ioctx_destroy(ioctx2);
-  cmdstr = "{\"prefix\": \"osd tier remove-overlay\", \"pool\": \"" +
-     pool_name1 + "\"}";
-  cmd[0] = (char *)cmdstr.c_str();
-  ASSERT_EQ(0, rados_mon_command(_cluster, (const char **)cmd, 1, "", 0, NULL, 0, NULL, 0));
-  cmdstr = "{\"prefix\": \"osd tier remove\", \"pool\": \"" +
-     pool_name1 + "\", \"tierpool\":\"" + pool_name3 + "\"}";
-  cmd[0] = (char *)cmdstr.c_str();
-  ASSERT_EQ(0, rados_mon_command(_cluster, (const char **)cmd, 1, "", 0, NULL, 0, NULL, 0));
-}
-
-TEST_F(TestLibRBD, LockingPP)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  {
-    librbd::RBD rbd;
-    librbd::Image image;
-    int order = 0;
-    std::string name = get_temp_image_name();
-    uint64_t size = 2 << 20;
-    std::string cookie1 = "foo";
-    std::string cookie2 = "bar";
-
-    ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-    ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-    // no lockers initially
-    std::list<librbd::locker_t> lockers;
-    std::string tag;
-    bool exclusive;
-    ASSERT_EQ(0, image.list_lockers(&lockers, &exclusive, &tag));
-    ASSERT_EQ(0u, lockers.size());
-    ASSERT_EQ("", tag);
-
-    // exclusive lock is exclusive
-    ASSERT_EQ(0, image.lock_exclusive(cookie1));
-    ASSERT_EQ(-EEXIST, image.lock_exclusive(cookie1));
-    ASSERT_EQ(-EBUSY, image.lock_exclusive(""));
-    ASSERT_EQ(-EEXIST, image.lock_shared(cookie1, ""));
-    ASSERT_EQ(-EBUSY, image.lock_shared(cookie1, "test"));
-    ASSERT_EQ(-EBUSY, image.lock_shared("", "test"));
-    ASSERT_EQ(-EBUSY, image.lock_shared("", ""));
-
-    // list exclusive
-    ASSERT_EQ(0, image.list_lockers(&lockers, &exclusive, &tag));
-    ASSERT_TRUE(exclusive);
-    ASSERT_EQ("", tag);
-    ASSERT_EQ(1u, lockers.size());
-    ASSERT_EQ(cookie1, lockers.front().cookie);
-
-    // unlock
-    ASSERT_EQ(-ENOENT, image.unlock(""));
-    ASSERT_EQ(-ENOENT, image.unlock(cookie2));
-    ASSERT_EQ(0, image.unlock(cookie1));
-    ASSERT_EQ(-ENOENT, image.unlock(cookie1));
-    ASSERT_EQ(0, image.list_lockers(&lockers, &exclusive, &tag));
-    ASSERT_EQ(0u, lockers.size());
-
-    ASSERT_EQ(0, image.lock_shared(cookie1, ""));
-    ASSERT_EQ(-EEXIST, image.lock_shared(cookie1, ""));
-    ASSERT_EQ(0, image.lock_shared(cookie2, ""));
-    ASSERT_EQ(-EEXIST, image.lock_shared(cookie2, ""));
-    ASSERT_EQ(-EEXIST, image.lock_exclusive(cookie1));
-    ASSERT_EQ(-EEXIST, image.lock_exclusive(cookie2));
-    ASSERT_EQ(-EBUSY, image.lock_exclusive(""));
-    ASSERT_EQ(-EBUSY, image.lock_exclusive("test"));
-
-    // list shared
-    ASSERT_EQ(0, image.list_lockers(&lockers, &exclusive, &tag));
-    ASSERT_EQ(2u, lockers.size());
-  }
-
-  ioctx.close();
-}
-
-TEST_F(TestLibRBD, FlushAio)
-{
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  size_t num_aios = 256;
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  char test_data[TEST_IO_SIZE + 1];
-  size_t i;
-  for (i = 0; i < TEST_IO_SIZE; ++i) {
-    test_data[i] = (char) (rand() % (126 - 33) + 33);
-  }
-
-  rbd_completion_t write_comps[num_aios];
-  for (i = 0; i < num_aios; ++i) {
-    ASSERT_EQ(0, rbd_aio_create_completion(NULL, NULL, &write_comps[i]));
-    uint64_t offset = rand() % (size - TEST_IO_SIZE);
-    ASSERT_EQ(0, rbd_aio_write(image, offset, TEST_IO_SIZE, test_data,
-                              write_comps[i]));
-  }
-
-  rbd_completion_t flush_comp;
-  ASSERT_EQ(0, rbd_aio_create_completion(NULL, NULL, &flush_comp));
-  ASSERT_EQ(0, rbd_aio_flush(image, flush_comp));
-  ASSERT_EQ(0, rbd_aio_wait_for_complete(flush_comp));
-  ASSERT_EQ(1, rbd_aio_is_complete(flush_comp));
-  rbd_aio_release(flush_comp);
-
-  for (i = 0; i < num_aios; ++i) {
-    ASSERT_EQ(1, rbd_aio_is_complete(write_comps[i]));
-    rbd_aio_release(write_comps[i]);
-  }
-
-  ASSERT_PASSED(validate_object_map, image);
-  ASSERT_EQ(0, rbd_close(image));
-  ASSERT_EQ(0, rbd_remove(ioctx, name.c_str()));
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, FlushAioPP)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  {
-    librbd::RBD rbd;
-    librbd::Image image;
-    int order = 0;
-    std::string name = get_temp_image_name();
-    uint64_t size = 2 << 20;
-    const size_t num_aios = 256;
-
-    ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-    ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-    char test_data[TEST_IO_SIZE + 1];
-    size_t i;
-    for (i = 0; i < TEST_IO_SIZE; ++i) {
-      test_data[i] = (char) (rand() % (126 - 33) + 33);
-    }
-    test_data[TEST_IO_SIZE] = '\0';
-
-    librbd::RBD::AioCompletion *write_comps[num_aios];
-    ceph::bufferlist bls[num_aios];
-    for (i = 0; i < num_aios; ++i) {
-      bls[i].append(test_data, strlen(test_data));
-      write_comps[i] = new librbd::RBD::AioCompletion(NULL, NULL);
-      uint64_t offset = rand() % (size - TEST_IO_SIZE);
-      ASSERT_EQ(0, image.aio_write(offset, TEST_IO_SIZE, bls[i],
-                                  write_comps[i]));
-    }
-
-    librbd::RBD::AioCompletion *flush_comp =
-      new librbd::RBD::AioCompletion(NULL, NULL);
-    ASSERT_EQ(0, image.aio_flush(flush_comp));
-    ASSERT_EQ(0, flush_comp->wait_for_complete());
-    ASSERT_EQ(1, flush_comp->is_complete());
-    flush_comp->release();
-
-    for (i = 0; i < num_aios; ++i) {
-      librbd::RBD::AioCompletion *comp = write_comps[i];
-      ASSERT_EQ(1, comp->is_complete());
-      comp->release();
-    }
-    ASSERT_PASSED(validate_object_map, image);
-  }
-
-  ioctx.close();
-}
-
-
-int iterate_cb(uint64_t off, size_t len, int exists, void *arg)
-{
-  //cout << "iterate_cb " << off << "~" << len << std::endl;
-  interval_set<uint64_t> *diff = static_cast<interval_set<uint64_t> *>(arg);
-  diff->insert(off, len);
-  return 0;
-}
-
-static int iterate_error_cb(uint64_t off, size_t len, int exists, void *arg)
-{
-  return -EINVAL;
-}
-
-void scribble(librbd::Image& image, int n, int max, bool skip_discard,
-              interval_set<uint64_t> *exists,
-              interval_set<uint64_t> *what)
-{
-  uint64_t size;
-  image.size(&size);
-  interval_set<uint64_t> exists_at_start = *exists;
-
-  for (int i=0; i<n; i++) {
-    uint64_t off = rand() % (size - max + 1);
-    uint64_t len = 1 + rand() % max;
-    if (!skip_discard && rand() % 4 == 0) {
-      ASSERT_EQ((int)len, image.discard(off, len));
-      interval_set<uint64_t> w;
-      w.insert(off, len);
-
-      // the zeroed bit no longer exists...
-      w.intersection_of(*exists);
-      exists->subtract(w);
-
-      // the bits we discarded are no long written...
-      interval_set<uint64_t> w2 = w;
-      w2.intersection_of(*what);
-      what->subtract(w2);
-
-      // except for the extents that existed at the start that we overwrote.
-      interval_set<uint64_t> w3;
-      w3.insert(off, len);
-      w3.intersection_of(exists_at_start);
-      what->union_of(w3);
-
-    } else {
-      bufferlist bl;
-      bl.append(buffer::create(len));
-      bl.zero();
-      ASSERT_EQ((int)len, image.write(off, len, bl));
-      interval_set<uint64_t> w;
-      w.insert(off, len);
-      what->union_of(w);
-      exists->union_of(w);
-    }
-  }
-}
-
-interval_set<uint64_t> round_diff_interval(const interval_set<uint64_t>& diff,
-                                           uint64_t object_size)
-{
-  if (object_size == 0) {
-    return diff;
-  }
-
-  interval_set<uint64_t> rounded_diff;
-  for (interval_set<uint64_t>::const_iterator it = diff.begin();
-       it != diff.end(); ++it) {
-    uint64_t off = it.get_start();
-    uint64_t len = it.get_len();
-    off -= off % object_size;
-    len += (object_size - (len % object_size));
-    interval_set<uint64_t> interval;
-    interval.insert(off, len);
-    rounded_diff.union_of(interval);
-  }
-  return rounded_diff;
-}
-
-template <typename T>
-class DiffIterateTest : public TestLibRBD {
-public:
-  static const uint8_t whole_object = T::whole_object;
-};
-
-template <bool _whole_object>
-class DiffIterateParams {
-public:
-  static const uint8_t whole_object = _whole_object;
-};
-
-typedef ::testing::Types<DiffIterateParams<false>,
-                         DiffIterateParams<true> > DiffIterateTypes;
-TYPED_TEST_CASE(DiffIterateTest, DiffIterateTypes);
-
-TYPED_TEST(DiffIterateTest, DiffIterate)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, this->_rados.ioctx_create(this->m_pool_name.c_str(), ioctx));
-
-  bool skip_discard = this->is_skip_partial_discard_enabled();
-
-  {
-    librbd::RBD rbd;
-    librbd::Image image;
-    int order = 0;
-    std::string name = this->get_temp_image_name();
-    uint64_t size = 20 << 20;
-
-    ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-    ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-    uint64_t object_size = 0;
-    if (this->whole_object) {
-      object_size = 1 << order;
-    }
-
-    interval_set<uint64_t> exists;
-    interval_set<uint64_t> one, two;
-    scribble(image, 10, 102400, skip_discard, &exists, &one);
-    cout << " wrote " << one << std::endl;
-    ASSERT_EQ(0, image.snap_create("one"));
-    scribble(image, 10, 102400, skip_discard, &exists, &two);
-
-    two = round_diff_interval(two, object_size);
-    cout << " wrote " << two << std::endl;
-
-    interval_set<uint64_t> diff;
-    ASSERT_EQ(0, image.diff_iterate2("one", 0, size, true, this->whole_object,
-                                     iterate_cb, (void *)&diff));
-    cout << " diff was " << diff << std::endl;
-    if (!two.subset_of(diff)) {
-      interval_set<uint64_t> i;
-      i.intersection_of(two, diff);
-      interval_set<uint64_t> l = two;
-      l.subtract(i);
-      cout << " ... two - (two*diff) = " << l << std::endl;
-    }
-    ASSERT_TRUE(two.subset_of(diff));
-  }
-  ioctx.close();
-}
-
-struct diff_extent {
-  diff_extent(uint64_t _offset, uint64_t _length, bool _exists,
-              uint64_t object_size) :
-    offset(_offset), length(_length), exists(_exists)
-  {
-    if (object_size != 0) {
-      offset -= offset % object_size;
-      length = object_size;
-    }
-  }
-  uint64_t offset;
-  uint64_t length;
-  bool exists;
-  bool operator==(const diff_extent& o) const {
-    return offset == o.offset && length == o.length && exists == o.exists;
-  }
-};
-
-ostream& operator<<(ostream & o, const diff_extent& e) {
-  return o << '(' << e.offset << '~' << e.length << ' ' << (e.exists ? "true" : "false") << ')';
-}
-
-int vector_iterate_cb(uint64_t off, size_t len, int exists, void *arg)
-{
-  cout << "iterate_cb " << off << "~" << len << std::endl;
-  vector<diff_extent> *diff = static_cast<vector<diff_extent> *>(arg);
-  diff->push_back(diff_extent(off, len, exists, 0));
-  return 0;
-}
-
-TYPED_TEST(DiffIterateTest, DiffIterateDiscard)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, this->_rados.ioctx_create(this->m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  librbd::Image image;
-  int order = 0;
-  std::string name = this->get_temp_image_name();
-  uint64_t size = 20 << 20;
-
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-  uint64_t object_size = 0;
-  if (this->whole_object) {
-    object_size = 1 << order;
-  }
-  vector<diff_extent> extents;
-  ceph::bufferlist bl;
-
-  ASSERT_EQ(0, image.diff_iterate2(NULL, 0, size, true, this->whole_object,
-                                  vector_iterate_cb, (void *) &extents));
-  ASSERT_EQ(0u, extents.size());
-
-  char data[256];
-  memset(data, 1, sizeof(data));
-  bl.append(data, 256);
-  ASSERT_EQ(256, image.write(0, 256, bl));
-  ASSERT_EQ(0, image.diff_iterate2(NULL, 0, size, true, this->whole_object,
-                                  vector_iterate_cb, (void *) &extents));
-  ASSERT_EQ(1u, extents.size());
-  ASSERT_EQ(diff_extent(0, 256, true, object_size), extents[0]);
-
-  int obj_ofs = 256;
-  ASSERT_EQ(1 << order, image.discard(0, 1 << order));
-
-  extents.clear();
-  ASSERT_EQ(0, image.diff_iterate2(NULL, 0, size, true, this->whole_object,
-                                  vector_iterate_cb, (void *) &extents));
-  ASSERT_EQ(0u, extents.size());
-
-  ASSERT_EQ(0, image.snap_create("snap1"));
-  ASSERT_EQ(256, image.write(0, 256, bl));
-  ASSERT_EQ(0, image.diff_iterate2(NULL, 0, size, true, this->whole_object,
-                                  vector_iterate_cb, (void *) &extents));
-  ASSERT_EQ(1u, extents.size());
-  ASSERT_EQ(diff_extent(0, 256, true, object_size), extents[0]);
-  ASSERT_EQ(0, image.snap_create("snap2"));
-
-  ASSERT_EQ(obj_ofs, image.discard(0, obj_ofs));
-
-  extents.clear();
-  ASSERT_EQ(0, image.snap_set("snap2"));
-  ASSERT_EQ(0, image.diff_iterate2("snap1", 0, size, true, this->whole_object,
-                                  vector_iterate_cb, (void *) &extents));
-  ASSERT_EQ(1u, extents.size());
-  ASSERT_EQ(diff_extent(0, 256, true, object_size), extents[0]);
-
-  ASSERT_EQ(0, image.snap_set(NULL));
-  ASSERT_EQ(1 << order, image.discard(0, 1 << order));
-  ASSERT_EQ(0, image.snap_create("snap3"));
-  ASSERT_EQ(0, image.snap_set("snap3"));
-
-  extents.clear();
-  ASSERT_EQ(0, image.diff_iterate2("snap1", 0, size, true, this->whole_object,
-                                  vector_iterate_cb, (void *) &extents));
-  ASSERT_EQ(1u, extents.size());
-  ASSERT_EQ(diff_extent(0, 256, false, object_size), extents[0]);
-  ASSERT_PASSED(this->validate_object_map, image);
-}
-
-TYPED_TEST(DiffIterateTest, DiffIterateStress)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, this->_rados.ioctx_create(this->m_pool_name.c_str(), ioctx));
-
-  bool skip_discard = this->is_skip_partial_discard_enabled();
-
-  librbd::RBD rbd;
-  librbd::Image image;
-  int order = 0;
-  std::string name = this->get_temp_image_name();
-  uint64_t size = 400 << 20;
-
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-  uint64_t object_size = 0;
-  if (this->whole_object) {
-    object_size = 1 << order;
-  }
-
-  interval_set<uint64_t> curexists;
-  vector<interval_set<uint64_t> > wrote;
-  vector<interval_set<uint64_t> > exists;
-  vector<string> snap;
-  int n = 20;
-  for (int i=0; i<n; i++) {
-    interval_set<uint64_t> w;
-    scribble(image, 10, 8192000, skip_discard, &curexists, &w);
-    cout << " i=" << i << " exists " << curexists << " wrote " << w << std::endl;
-    string s = "snap" + stringify(i);
-    ASSERT_EQ(0, image.snap_create(s.c_str()));
-    wrote.push_back(w);
-    exists.push_back(curexists);
-    snap.push_back(s);
-  }
-
-  for (int h=0; h<n-1; h++) {
-    for (int i=0; i<n-h-1; i++) {
-      for (int j=(h==0 ? i+1 : n-1); j<n; j++) {
-        interval_set<uint64_t> diff, actual, uex;
-        for (int k=i+1; k<=j; k++)
-          diff.union_of(wrote[k]);
-        cout << "from " << i << " to "
-             << (h != 0 ? string("HEAD") : stringify(j)) << " diff "
-             << round_diff_interval(diff, object_size) << std::endl;
-
-        // limit to extents that exists both at the beginning and at the end
-        uex.union_of(exists[i], exists[j]);
-        diff.intersection_of(uex);
-        diff = round_diff_interval(diff, object_size);
-        cout << " limited diff " << diff << std::endl;
-
-        ASSERT_EQ(0, image.snap_set(h==0 ? snap[j].c_str() : NULL));
-        ASSERT_EQ(0, image.diff_iterate2(snap[i].c_str(), 0, size, true,
-                                         this->whole_object, iterate_cb,
-                                         (void *)&actual));
-        cout << " actual was " << actual << std::endl;
-        if (!diff.subset_of(actual)) {
-          interval_set<uint64_t> i;
-          i.intersection_of(diff, actual);
-          interval_set<uint64_t> l = diff;
-          l.subtract(i);
-          cout << " ... diff - (actual*diff) = " << l << std::endl;
-        }
-        ASSERT_TRUE(diff.subset_of(actual));
-      }
-    }
-    ASSERT_EQ(0, image.snap_set(NULL));
-    ASSERT_EQ(0, image.snap_remove(snap[n-h-1].c_str()));
-  }
-
-  ASSERT_PASSED(this->validate_object_map, image);
-}
-
-TYPED_TEST(DiffIterateTest, DiffIterateRegression6926)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, this->_rados.ioctx_create(this->m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  librbd::Image image;
-  int order = 0;
-  std::string name = this->get_temp_image_name();
-  uint64_t size = 20 << 20;
-
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-  uint64_t object_size = 0;
-  if (this->whole_object) {
-    object_size = 1 << order;
-  }
-  vector<diff_extent> extents;
-  ceph::bufferlist bl;
-
-  ASSERT_EQ(0, image.diff_iterate2(NULL, 0, size, true, this->whole_object,
-                                  vector_iterate_cb, (void *) &extents));
-  ASSERT_EQ(0u, extents.size());
-
-  ASSERT_EQ(0, image.snap_create("snap1"));
-  char data[256];
-  memset(data, 1, sizeof(data));
-  bl.append(data, 256);
-  ASSERT_EQ(256, image.write(0, 256, bl));
-
-  extents.clear();
-  ASSERT_EQ(0, image.diff_iterate2(NULL, 0, size, true, this->whole_object,
-                                  vector_iterate_cb, (void *) &extents));
-  ASSERT_EQ(1u, extents.size());
-  ASSERT_EQ(diff_extent(0, 256, true, object_size), extents[0]);
-
-  ASSERT_EQ(0, image.snap_set("snap1"));
-  extents.clear();
-  ASSERT_EQ(0, image.diff_iterate2(NULL, 0, size, true, this->whole_object,
-                                  vector_iterate_cb, (void *) &extents));
-  ASSERT_EQ(static_cast<size_t>(0), extents.size());
-}
-
-TYPED_TEST(DiffIterateTest, DiffIterateIgnoreParent)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, this->_rados.ioctx_create(this->m_pool_name.c_str(), ioctx));
-
-  bool skip_discard = this->is_skip_partial_discard_enabled();
-
-  librbd::RBD rbd;
-  librbd::Image image;
-  std::string name = this->get_temp_image_name();
-  uint64_t size = 20 << 20;
-  int order = 0;
-
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-  uint64_t object_size = 0;
-  if (this->whole_object) {
-    object_size = 1 << order;
-  }
-
-  bufferlist bl;
-  bl.append(buffer::create(size));
-  bl.zero();
-  interval_set<uint64_t> one;
-  one.insert(0, size);
-  ASSERT_EQ((int)size, image.write(0, size, bl));
-  ASSERT_EQ(0, image.snap_create("one"));
-  ASSERT_EQ(0, image.snap_protect("one"));
-
-  std::string clone_name = this->get_temp_image_name();
-  ASSERT_EQ(0, rbd.clone(ioctx, name.c_str(), "one", ioctx, clone_name.c_str(),
-                         RBD_FEATURE_LAYERING, &order));
-  ASSERT_EQ(0, rbd.open(ioctx, image, clone_name.c_str(), NULL));
-
-  interval_set<uint64_t> exists;
-  interval_set<uint64_t> two;
-  scribble(image, 10, 102400, skip_discard, &exists, &two);
-  two = round_diff_interval(two, object_size);
-  cout << " wrote " << two << " to clone" << std::endl;
-
-  interval_set<uint64_t> diff;
-  ASSERT_EQ(0, image.diff_iterate2(NULL, 0, size, false, this->whole_object,
-                                   iterate_cb, (void *)&diff));
-  cout << " diff was " << diff << std::endl;
-  if (!this->whole_object) {
-    ASSERT_FALSE(one.subset_of(diff));
-  }
-  ASSERT_TRUE(two.subset_of(diff));
-}
-
-TYPED_TEST(DiffIterateTest, DiffIterateCallbackError)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, this->_rados.ioctx_create(this->m_pool_name.c_str(), ioctx));
-
-  bool skip_discard = this->is_skip_partial_discard_enabled();
-
-  {
-    librbd::RBD rbd;
-    librbd::Image image;
-    int order = 0;
-    std::string name = this->get_temp_image_name();
-    uint64_t size = 20 << 20;
-
-    ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-    ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-    interval_set<uint64_t> exists;
-    interval_set<uint64_t> one;
-    scribble(image, 10, 102400, skip_discard, &exists, &one);
-    cout << " wrote " << one << std::endl;
-
-    interval_set<uint64_t> diff;
-    ASSERT_EQ(-EINVAL, image.diff_iterate2(NULL, 0, size, true,
-                                           this->whole_object,
-                                           iterate_error_cb, NULL));
-  }
-  ioctx.close();
-}
-
-TYPED_TEST(DiffIterateTest, DiffIterateParentDiscard)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, this->_rados.ioctx_create(this->m_pool_name.c_str(), ioctx));
-
-  bool skip_discard = this->is_skip_partial_discard_enabled();
-
-  librbd::RBD rbd;
-  librbd::Image image;
-  std::string name = this->get_temp_image_name();
-  uint64_t size = 20 << 20;
-  int order = 0;
-
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-  uint64_t object_size = 0;
-  if (this->whole_object) {
-    object_size = 1 << order;
-  }
-
-  interval_set<uint64_t> exists;
-  interval_set<uint64_t> one;
-  scribble(image, 10, 102400, skip_discard, &exists, &one);
-  ASSERT_EQ(0, image.snap_create("one"));
-
-  ASSERT_EQ(1 << order, image.discard(0, 1 << order));
-  ASSERT_EQ(0, image.snap_create("two"));
-  ASSERT_EQ(0, image.snap_protect("two"));
-  exists.clear();
-  one.clear();
-
-  std::string clone_name = this->get_temp_image_name();
-  ASSERT_EQ(0, rbd.clone(ioctx, name.c_str(), "two", ioctx,
-                         clone_name.c_str(), RBD_FEATURE_LAYERING, &order));
-  ASSERT_EQ(0, rbd.open(ioctx, image, clone_name.c_str(), NULL));
-
-  interval_set<uint64_t> two;
-  scribble(image, 10, 102400, skip_discard, &exists, &two);
-  two = round_diff_interval(two, object_size);
-
-  interval_set<uint64_t> diff;
-  ASSERT_EQ(0, image.diff_iterate2(NULL, 0, size, true, this->whole_object,
-                                   iterate_cb, (void *)&diff));
-  ASSERT_TRUE(two.subset_of(diff));
-}
-
-TEST_F(TestLibRBD, ZeroLengthWrite)
-{
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  char read_data[1];
-  ASSERT_EQ(0, rbd_write(image, 0, 0, NULL));
-  ASSERT_EQ(1, rbd_read(image, 0, 1, read_data));
-  ASSERT_EQ('\0', read_data[0]);
-
-  ASSERT_PASSED(validate_object_map, image);
-  ASSERT_EQ(0, rbd_close(image));
-
-  rados_ioctx_destroy(ioctx);
-}
-
-
-TEST_F(TestLibRBD, ZeroLengthDiscard)
-{
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  const char data[] = "blah";
-  char read_data[sizeof(data)];
-  ASSERT_EQ((int)strlen(data), rbd_write(image, 0, strlen(data), data));
-  ASSERT_EQ(0, rbd_discard(image, 0, 0));
-  ASSERT_EQ((int)strlen(data), rbd_read(image, 0, strlen(data), read_data));
-  ASSERT_EQ(0, memcmp(data, read_data, strlen(data)));
-
-  ASSERT_PASSED(validate_object_map, image);
-  ASSERT_EQ(0, rbd_close(image));
-
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, ZeroLengthRead)
-{
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  char read_data[1];
-  ASSERT_EQ(0, rbd_read(image, 0, 0, read_data));
-
-  ASSERT_EQ(0, rbd_close(image));
-
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, LargeCacheRead)
-{
-  std::string config_value;
-  ASSERT_EQ(0, _rados.conf_get("rbd_cache", config_value));
-  if (config_value == "false") {
-    std::cout << "SKIPPING due to disabled cache" << std::endl;
-    return;
-  }
-
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  uint32_t new_cache_size = 1 << 20;
-  std::string orig_cache_size;
-  ASSERT_EQ(0, _rados.conf_get("rbd_cache_size", orig_cache_size));
-  ASSERT_EQ(0, _rados.conf_set("rbd_cache_size",
-                               stringify(new_cache_size).c_str()));
-  ASSERT_EQ(0, _rados.conf_get("rbd_cache_size", config_value));
-  ASSERT_EQ(stringify(new_cache_size), config_value);
-  BOOST_SCOPE_EXIT( (orig_cache_size) ) {
-    ASSERT_EQ(0, _rados.conf_set("rbd_cache_size", orig_cache_size.c_str()));
-  } BOOST_SCOPE_EXIT_END;
-
-  rbd_image_t image;
-  int order = 21;
-  std::string name = get_temp_image_name();
-  uint64_t size = 1 << order;
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  std::string buffer(1 << order, '1');
-  ASSERT_EQ(static_cast<ssize_t>(buffer.size()),
-           rbd_write(image, 0, buffer.size(), buffer.c_str()));
-
-  ASSERT_EQ(0, rbd_invalidate_cache(image));
-
-  ASSERT_EQ(static_cast<ssize_t>(buffer.size()), 
-           rbd_read(image, 0, buffer.size(), &buffer[0]));
-
-  ASSERT_EQ(0, rbd_close(image));
-
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, TestPendingAio)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING);
-
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  bool old_format;
-  uint64_t features;
-  rbd_image_t image;
-  int order = 0;
-
-  ASSERT_EQ(0, get_features(&old_format, &features));
-  ASSERT_FALSE(old_format);
-
-  std::string name = get_temp_image_name();
-
-  uint64_t size = 4 << 20;
-  ASSERT_EQ(0, create_image_full(ioctx, name.c_str(), size, &order,
-                                false, features));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  char test_data[TEST_IO_SIZE];
-  for (size_t i = 0; i < TEST_IO_SIZE; ++i) {
-    test_data[i] = (char) (rand() % (126 - 33) + 33);
-  }
-
-  size_t num_aios = 256;
-  rbd_completion_t comps[num_aios];
-  for (size_t i = 0; i < num_aios; ++i) {
-    ASSERT_EQ(0, rbd_aio_create_completion(NULL, NULL, &comps[i]));
-    uint64_t offset = rand() % (size - TEST_IO_SIZE);
-    ASSERT_EQ(0, rbd_aio_write(image, offset, TEST_IO_SIZE, test_data,
-                               comps[i]));
-  }
-  for (size_t i = 0; i < num_aios; ++i) {
-    ASSERT_EQ(0, rbd_aio_wait_for_complete(comps[i]));
-    rbd_aio_release(comps[i]);
-  }
-  ASSERT_EQ(0, rbd_invalidate_cache(image));
-
-  for (size_t i = 0; i < num_aios; ++i) {
-    ASSERT_EQ(0, rbd_aio_create_completion(NULL, NULL, &comps[i]));
-    uint64_t offset = rand() % (size - TEST_IO_SIZE);
-    ASSERT_LE(0, rbd_aio_read(image, offset, TEST_IO_SIZE, test_data,
-                              comps[i]));
-  }
-
-  ASSERT_PASSED(validate_object_map, image);
-  ASSERT_EQ(0, rbd_close(image));
-  for (size_t i = 0; i < num_aios; ++i) {
-    ASSERT_EQ(1, rbd_aio_is_complete(comps[i]));
-    rbd_aio_release(comps[i]);
-  }
-
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, Flatten)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string parent_name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  int order = 0;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, parent_name.c_str(), size, &order));
-
-  librbd::Image parent_image;
-  ASSERT_EQ(0, rbd.open(ioctx, parent_image, parent_name.c_str(), NULL));
-
-  bufferlist bl;
-  bl.append(std::string(4096, '1'));
-  ASSERT_EQ((ssize_t)bl.length(), parent_image.write(0, bl.length(), bl));
-
-  ASSERT_EQ(0, parent_image.snap_create("snap1"));
-  ASSERT_EQ(0, parent_image.snap_protect("snap1"));
-
-  uint64_t features;
-  ASSERT_EQ(0, parent_image.features(&features));
-
-  std::string clone_name = get_temp_image_name();
-  EXPECT_EQ(0, rbd.clone(ioctx, parent_name.c_str(), "snap1", ioctx,
-       clone_name.c_str(), features, &order));
-
-  librbd::Image clone_image;
-  ASSERT_EQ(0, rbd.open(ioctx, clone_image, clone_name.c_str(), NULL));
-  ASSERT_EQ(0, clone_image.flatten());
-
-  librbd::RBD::AioCompletion *read_comp =
-    new librbd::RBD::AioCompletion(NULL, NULL);
-  bufferlist read_bl;
-  clone_image.aio_read(0, bl.length(), read_bl, read_comp);
-  ASSERT_EQ(0, read_comp->wait_for_complete());
-  ASSERT_EQ((ssize_t)bl.length(), read_comp->get_return_value());
-  read_comp->release();
-  ASSERT_TRUE(bl.contents_equal(read_bl));
-
-  ASSERT_PASSED(validate_object_map, clone_image);
-}
-
-TEST_F(TestLibRBD, SnapshotLimit)
-{
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  uint64_t limit;
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  ASSERT_EQ(0, rbd_snap_get_limit(image, &limit));
-  ASSERT_EQ(UINT64_MAX, limit);
-  ASSERT_EQ(0, rbd_snap_set_limit(image, 2));
-  ASSERT_EQ(0, rbd_snap_get_limit(image, &limit));
-  ASSERT_EQ(2U, limit);
-
-  ASSERT_EQ(0, rbd_snap_create(image, "snap1"));
-  ASSERT_EQ(0, rbd_snap_create(image, "snap2"));
-  ASSERT_EQ(-EDQUOT, rbd_snap_create(image, "snap3"));
-  ASSERT_EQ(0, rbd_snap_set_limit(image, UINT64_MAX));
-  ASSERT_EQ(0, rbd_snap_create(image, "snap3"));
-  ASSERT_EQ(0, rbd_close(image));
-
-  rados_ioctx_destroy(ioctx);
-}
-  
-
-TEST_F(TestLibRBD, SnapshotLimitPP)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  {
-    librbd::RBD rbd;
-    librbd::Image image;
-    std::string name = get_temp_image_name();
-    uint64_t size = 2 << 20;
-    int order = 0;
-    uint64_t limit;
-
-    ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-    ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-    ASSERT_EQ(0, image.snap_get_limit(&limit));
-    ASSERT_EQ(UINT64_MAX, limit);
-    ASSERT_EQ(0, image.snap_set_limit(2));
-    ASSERT_EQ(0, image.snap_get_limit(&limit));
-    ASSERT_EQ(2U, limit);
-
-    ASSERT_EQ(0, image.snap_create("snap1"));
-    ASSERT_EQ(0, image.snap_create("snap2"));
-    ASSERT_EQ(-EDQUOT, image.snap_create("snap3"));
-    ASSERT_EQ(0, image.snap_set_limit(UINT64_MAX));
-    ASSERT_EQ(0, image.snap_create("snap3"));
-  }
-
-  ioctx.close();
-}
-
-TEST_F(TestLibRBD, RebuildObjectMapViaLockOwner)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK | RBD_FEATURE_OBJECT_MAP);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  int order = 0;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  std::string object_map_oid;
-  {
-    librbd::Image image;
-    ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-    std::string image_id;
-    ASSERT_EQ(0, get_image_id(image, &image_id));
-    object_map_oid = RBD_OBJECT_MAP_PREFIX + image_id;
-  }
-
-  // corrupt the object map
-  bufferlist bl;
-  bl.append("foo");
-  ASSERT_EQ(0, ioctx.write(object_map_oid, bl, bl.length(), 0));
-
-  librbd::Image image1;
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-
-  bool lock_owner;
-  bl.clear();
-  ASSERT_EQ(0, image1.write(0, 0, bl));
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-
-  uint64_t flags;
-  ASSERT_EQ(0, image1.get_flags(&flags));
-  ASSERT_TRUE((flags & RBD_FLAG_OBJECT_MAP_INVALID) != 0);
-
-  librbd::Image image2;
-  ASSERT_EQ(0, rbd.open(ioctx, image2, name.c_str(), NULL));
-  ASSERT_EQ(0, image2.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_FALSE(lock_owner);
-
-  PrintProgress prog_ctx;
-  ASSERT_EQ(0, image2.rebuild_object_map(prog_ctx));
-  ASSERT_PASSED(validate_object_map, image1);
-  ASSERT_PASSED(validate_object_map, image2);
-}
-
-TEST_F(TestLibRBD, RenameViaLockOwner)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING | RBD_FEATURE_EXCLUSIVE_LOCK);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  int order = 0;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image1;
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-
-  bufferlist bl;
-  ASSERT_EQ(0, image1.write(0, 0, bl));
-
-  bool lock_owner;
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-
-  std::string new_name = get_temp_image_name();
-  ASSERT_EQ(0, rbd.rename(ioctx, name.c_str(), new_name.c_str()));
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-
-  librbd::Image image2;
-  ASSERT_EQ(0, rbd.open(ioctx, image2, new_name.c_str(), NULL));
-}
-
-TEST_F(TestLibRBD, SnapCreateViaLockOwner)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING | RBD_FEATURE_EXCLUSIVE_LOCK);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  int order = 0;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image1;
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-
-  // switch to writeback cache
-  ASSERT_EQ(0, image1.flush());
-
-  bufferlist bl;
-  bl.append(std::string(4096, '1'));
-  ASSERT_EQ((ssize_t)bl.length(), image1.write(0, bl.length(), bl));
-
-  bool lock_owner;
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-
-  librbd::Image image2;
-  ASSERT_EQ(0, rbd.open(ioctx, image2, name.c_str(), NULL));
-
-  ASSERT_EQ(0, image2.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_FALSE(lock_owner);
-
-  ASSERT_EQ(0, image2.snap_create("snap1"));
-  bool exists;
-  ASSERT_EQ(0, image1.snap_exists2("snap1", &exists));
-  ASSERT_TRUE(exists);
-  ASSERT_EQ(0, image2.snap_exists2("snap1", &exists));
-  ASSERT_TRUE(exists);
-
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-}
-
-TEST_F(TestLibRBD, SnapRemoveViaLockOwner)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING | RBD_FEATURE_EXCLUSIVE_LOCK);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  int order = 0;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image1;
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-
-  bufferlist bl;
-  ASSERT_EQ(0, image1.write(0, 0, bl));
-  ASSERT_EQ(0, image1.snap_create("snap1"));
-
-  bool lock_owner;
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-
-  librbd::Image image2;
-  ASSERT_EQ(0, rbd.open(ioctx, image2, name.c_str(), NULL));
-
-  ASSERT_EQ(0, image2.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_FALSE(lock_owner);
-
-  ASSERT_EQ(0, image2.snap_remove("snap1"));
-  bool exists;
-  ASSERT_EQ(0, image1.snap_exists2("snap1", &exists));
-  ASSERT_FALSE(exists);
-  ASSERT_EQ(0, image2.snap_exists2("snap1", &exists));
-  ASSERT_FALSE(exists);
-
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-}
-
-TEST_F(TestLibRBD, SnapRemove2)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  int order = 0;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image1;
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-
-  bufferlist bl;
-  ASSERT_EQ(0, image1.write(0, 0, bl));
-  ASSERT_EQ(0, image1.snap_create("snap1"));
-  bool exists;
-  ASSERT_EQ(0, image1.snap_exists2("snap1", &exists));
-  ASSERT_TRUE(exists);
-  ASSERT_EQ(0, image1.snap_protect("snap1"));
-  bool is_protected;
-  ASSERT_EQ(0, image1.snap_is_protected("snap1", &is_protected));
-  ASSERT_TRUE(is_protected);
-
-  uint64_t features;
-  ASSERT_EQ(0, image1.features(&features));
-
-  std::string child_name = get_temp_image_name();
-  EXPECT_EQ(0, rbd.clone(ioctx, name.c_str(), "snap1", ioctx,
-                        child_name.c_str(), features, &order));
-
-  ASSERT_EQ(0, image1.snap_exists2("snap1", &exists));
-  ASSERT_TRUE(exists);
-  ASSERT_EQ(0, image1.snap_is_protected("snap1", &is_protected));
-  ASSERT_TRUE(is_protected);
-
-  ASSERT_EQ(-EBUSY, image1.snap_remove("snap1"));
-  PrintProgress pp;
-  ASSERT_EQ(0, image1.snap_remove2("snap1", RBD_SNAP_REMOVE_FORCE, pp));
-  ASSERT_EQ(0, image1.snap_exists2("snap1", &exists));
-  ASSERT_FALSE(exists);
-}
-
-TEST_F(TestLibRBD, SnapRenameViaLockOwner)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING | RBD_FEATURE_EXCLUSIVE_LOCK);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  int order = 0;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image1;
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-
-  bufferlist bl;
-  ASSERT_EQ(0, image1.write(0, 0, bl));
-  ASSERT_EQ(0, image1.snap_create("snap1"));
-
-  bool lock_owner;
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-
-  librbd::Image image2;
-  ASSERT_EQ(0, rbd.open(ioctx, image2, name.c_str(), NULL));
-
-  ASSERT_EQ(0, image2.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_FALSE(lock_owner);
-
-  ASSERT_EQ(0, image2.snap_rename("snap1", "snap1-rename"));
-  bool exists;
-  ASSERT_EQ(0, image1.snap_exists2("snap1-rename", &exists));
-  ASSERT_TRUE(exists);
-  ASSERT_EQ(0, image2.snap_exists2("snap1-rename", &exists));
-  ASSERT_TRUE(exists);
-
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-}
-
-TEST_F(TestLibRBD, SnapProtectViaLockOwner)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING | RBD_FEATURE_EXCLUSIVE_LOCK);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  int order = 0;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image1;
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-
-  bufferlist bl;
-  ASSERT_EQ(0, image1.write(0, 0, bl));
-
-  bool lock_owner;
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-  ASSERT_EQ(0, image1.snap_create("snap1"));
-
-  librbd::Image image2;
-  ASSERT_EQ(0, rbd.open(ioctx, image2, name.c_str(), NULL));
-
-  ASSERT_EQ(0, image2.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_FALSE(lock_owner);
-
-  ASSERT_EQ(0, image2.snap_protect("snap1"));
-  bool is_protected;
-  ASSERT_EQ(0, image2.snap_is_protected("snap1", &is_protected));
-  ASSERT_TRUE(is_protected);
-  ASSERT_EQ(0, image1.snap_is_protected("snap1", &is_protected));
-  ASSERT_TRUE(is_protected);
-
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-}
-
-TEST_F(TestLibRBD, SnapUnprotectViaLockOwner)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING | RBD_FEATURE_EXCLUSIVE_LOCK);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  int order = 0;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image1;
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-
-  bufferlist bl;
-  ASSERT_EQ(0, image1.write(0, 0, bl));
-
-  bool lock_owner;
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-  ASSERT_EQ(0, image1.snap_create("snap1"));
-  ASSERT_EQ(0, image1.snap_protect("snap1"));
-  bool is_protected;
-  ASSERT_EQ(0, image1.snap_is_protected("snap1", &is_protected));
-  ASSERT_TRUE(is_protected);
-
-  librbd::Image image2;
-  ASSERT_EQ(0, rbd.open(ioctx, image2, name.c_str(), NULL));
-
-  ASSERT_EQ(0, image2.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_FALSE(lock_owner);
-
-  ASSERT_EQ(0, image2.snap_unprotect("snap1"));
-  ASSERT_EQ(0, image2.snap_is_protected("snap1", &is_protected));
-  ASSERT_FALSE(is_protected);
-  ASSERT_EQ(0, image1.snap_is_protected("snap1", &is_protected));
-  ASSERT_FALSE(is_protected);
-
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-}
-
-TEST_F(TestLibRBD, FlattenViaLockOwner)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string parent_name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  int order = 0;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, parent_name.c_str(), size, &order));
-
-  librbd::Image parent_image;
-  ASSERT_EQ(0, rbd.open(ioctx, parent_image, parent_name.c_str(), NULL));
-  ASSERT_EQ(0, parent_image.snap_create("snap1"));
-  ASSERT_EQ(0, parent_image.snap_protect("snap1"));
-
-  uint64_t features;
-  ASSERT_EQ(0, parent_image.features(&features));
-
-  std::string name = get_temp_image_name();
-  EXPECT_EQ(0, rbd.clone(ioctx, parent_name.c_str(), "snap1", ioctx,
-                        name.c_str(), features, &order));
-
-  librbd::Image image1;
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-
-  bufferlist bl;
-  ASSERT_EQ(0, image1.write(0, 0, bl));
-
-  bool lock_owner;
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-
-  librbd::Image image2;
-  ASSERT_EQ(0, rbd.open(ioctx, image2, name.c_str(), NULL));
-
-  ASSERT_EQ(0, image2.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_FALSE(lock_owner);
-
-  ASSERT_EQ(0, image2.flatten());
-
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-  ASSERT_PASSED(validate_object_map, image1);
-}
-
-TEST_F(TestLibRBD, ResizeViaLockOwner)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  int order = 0;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image1;
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-
-  bufferlist bl;
-  ASSERT_EQ(0, image1.write(0, 0, bl));
-
-  bool lock_owner;
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-
-  librbd::Image image2;
-  ASSERT_EQ(0, rbd.open(ioctx, image2, name.c_str(), NULL));
-
-  ASSERT_EQ(0, image2.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_FALSE(lock_owner);
-
-  ASSERT_EQ(0, image2.resize(0));
-
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-  ASSERT_PASSED(validate_object_map, image1);
-}
-
-TEST_F(TestLibRBD, ObjectMapConsistentSnap)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-  uint64_t size = 1 << 20;
-  int order = 12;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image1;
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-
-  int num_snaps = 10;
-  for (int i = 0; i < num_snaps; ++i) {
-    std::string snap_name = "snap" + stringify(i);
-    ASSERT_EQ(0, image1.snap_create(snap_name.c_str()));
-  }
-
-
-  thread writer([&image1](){
-      librbd::image_info_t info;
-      int r = image1.stat(info, sizeof(info));
-      assert(r == 0);
-      bufferlist bl;
-      bl.append("foo");
-      for (unsigned i = 0; i < info.num_objs; ++i) {
-       r = image1.write((1 << info.order) * i, bl.length(), bl);
-       assert(r == (int) bl.length());
-      }
-    });
-  writer.join();
-
-  for (int i = 0; i < num_snaps; ++i) {
-    std::string snap_name = "snap" + stringify(i);
-    ASSERT_EQ(0, image1.snap_set(snap_name.c_str()));
-    ASSERT_PASSED(validate_object_map, image1);
-  }
-
-  ASSERT_EQ(0, image1.snap_set(NULL));
-  ASSERT_PASSED(validate_object_map, image1);
-}
-
-void memset_rand(char *buf, size_t len) {
-  for (size_t i = 0; i < len; ++i) {
-    buf[i] = (char) (rand() % (126 - 33) + 33);
-  }
-}
-
-TEST_F(TestLibRBD, Metadata)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING);
-
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  int order = 0;
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-
-  rbd_image_t image;
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  rbd_image_t image1;
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image1, NULL));
-
-  char keys[1024];
-  char vals[1024];
-  size_t keys_len = sizeof(keys);
-  size_t vals_len = sizeof(vals);
-
-  memset_rand(keys, keys_len);
-  memset_rand(vals, vals_len);
-
-  ASSERT_EQ(0, rbd_metadata_list(image, "", 0, keys, &keys_len, vals,
-                                 &vals_len));
-  ASSERT_EQ(0U, keys_len);
-  ASSERT_EQ(0U, vals_len);
-
-  char value[1024];
-  size_t value_len = sizeof(value);
-  memset_rand(value, value_len);
-
-  ASSERT_EQ(0, rbd_metadata_set(image1, "key1", "value1"));
-  ASSERT_EQ(0, rbd_metadata_set(image1, "key2", "value2"));
-  ASSERT_EQ(0, rbd_metadata_get(image1, "key1", value, &value_len));
-  ASSERT_STREQ(value, "value1");
-  value_len = 1;
-  ASSERT_EQ(-ERANGE, rbd_metadata_get(image1, "key1", value, &value_len));
-  ASSERT_EQ(value_len, strlen("value1") + 1);
-
-  ASSERT_EQ(-ERANGE, rbd_metadata_list(image1, "", 0, keys, &keys_len, vals,
-                                       &vals_len));
-  keys_len = sizeof(keys);
-  vals_len = sizeof(vals);
-  memset_rand(keys, keys_len);
-  memset_rand(vals, vals_len);
-  ASSERT_EQ(0, rbd_metadata_list(image1, "", 0, keys, &keys_len, vals,
-                                 &vals_len));
-  ASSERT_EQ(keys_len, strlen("key1") + 1 + strlen("key2") + 1);
-  ASSERT_EQ(vals_len, strlen("value1") + 1 + strlen("value2") + 1);
-  ASSERT_STREQ(keys, "key1");
-  ASSERT_STREQ(keys + strlen(keys) + 1, "key2");
-  ASSERT_STREQ(vals, "value1");
-  ASSERT_STREQ(vals + strlen(vals) + 1, "value2");
-
-  ASSERT_EQ(0, rbd_metadata_remove(image1, "key1"));
-  ASSERT_EQ(-ENOENT, rbd_metadata_remove(image1, "key3"));
-  value_len = sizeof(value);
-  ASSERT_EQ(-ENOENT, rbd_metadata_get(image1, "key3", value, &value_len));
-  ASSERT_EQ(0, rbd_metadata_list(image1, "", 0, keys, &keys_len, vals,
-                                 &vals_len));
-  ASSERT_EQ(keys_len, strlen("key2") + 1);
-  ASSERT_EQ(vals_len, strlen("value2") + 1);
-  ASSERT_STREQ(keys, "key2");
-  ASSERT_STREQ(vals, "value2");
-
-  // test config setting
-  ASSERT_EQ(0, rbd_metadata_set(image1, "conf_rbd_cache", "false"));
-  ASSERT_EQ(-EINVAL, rbd_metadata_set(image1, "conf_rbd_cache", "INVALID_VAL"));
-  ASSERT_EQ(0, rbd_metadata_remove(image1, "conf_rbd_cache"));
-
-  // test metadata with snapshot adding
-  ASSERT_EQ(0, rbd_snap_create(image1, "snap1"));
-  ASSERT_EQ(0, rbd_snap_protect(image1, "snap1"));
-  ASSERT_EQ(0, rbd_snap_set(image1, "snap1"));
-
-  ASSERT_EQ(0, rbd_metadata_set(image1, "key1", "value1"));
-  ASSERT_EQ(0, rbd_metadata_set(image1, "key3", "value3"));
-
-  keys_len = sizeof(keys);
-  vals_len = sizeof(vals);
-  memset_rand(keys, keys_len);
-  memset_rand(vals, vals_len);
-  ASSERT_EQ(0, rbd_metadata_list(image1, "", 0, keys, &keys_len, vals,
-                                 &vals_len));
-  ASSERT_EQ(keys_len,
-            strlen("key1") + 1 + strlen("key2") + 1 + strlen("key3") + 1);
-  ASSERT_EQ(vals_len,
-            strlen("value1") + 1 + strlen("value2") + 1 + strlen("value3") + 1);
-  ASSERT_STREQ(keys, "key1");
-  ASSERT_STREQ(keys + strlen("key1") + 1, "key2");
-  ASSERT_STREQ(keys + strlen("key1") + 1 + strlen("key2") + 1, "key3");
-  ASSERT_STREQ(vals, "value1");
-  ASSERT_STREQ(vals + strlen("value1") + 1, "value2");
-  ASSERT_STREQ(vals + strlen("value1") + 1 + strlen("value2") + 1, "value3");
-
-  ASSERT_EQ(0, rbd_snap_set(image1, NULL));
-  keys_len = sizeof(keys);
-  vals_len = sizeof(vals);
-  memset_rand(keys, keys_len);
-  memset_rand(vals, vals_len);
-  ASSERT_EQ(0, rbd_metadata_list(image1, "", 0, keys, &keys_len, vals,
-                                 &vals_len));
-  ASSERT_EQ(keys_len,
-            strlen("key1") + 1 + strlen("key2") + 1 + strlen("key3") + 1);
-  ASSERT_EQ(vals_len,
-            strlen("value1") + 1 + strlen("value2") + 1 + strlen("value3") + 1);
-  ASSERT_STREQ(keys, "key1");
-  ASSERT_STREQ(keys + strlen("key1") + 1, "key2");
-  ASSERT_STREQ(keys + strlen("key1") + 1 + strlen("key2") + 1, "key3");
-  ASSERT_STREQ(vals, "value1");
-  ASSERT_STREQ(vals + strlen("value1") + 1, "value2");
-  ASSERT_STREQ(vals + strlen("value1") + 1 + strlen("value2") + 1, "value3");
-
-  // test metadata with cloning
-  uint64_t features;
-  ASSERT_EQ(0, rbd_get_features(image1, &features));
-
-  string cname = get_temp_image_name();
-  EXPECT_EQ(0, rbd_clone(ioctx, name.c_str(), "snap1", ioctx,
-                         cname.c_str(), features, &order));
-  rbd_image_t image2;
-  ASSERT_EQ(0, rbd_open(ioctx, cname.c_str(), &image2, NULL));
-  ASSERT_EQ(0, rbd_metadata_set(image2, "key4", "value4"));
-
-  keys_len = sizeof(keys);
-  vals_len = sizeof(vals);
-  memset_rand(keys, keys_len);
-  memset_rand(vals, vals_len);
-  ASSERT_EQ(0, rbd_metadata_list(image2, "", 0, keys, &keys_len, vals,
-                                 &vals_len));
-  ASSERT_EQ(keys_len, strlen("key1") + 1 + strlen("key2") + 1 + strlen("key3") +
-            1 + strlen("key4") + 1);
-  ASSERT_EQ(vals_len, strlen("value1") + 1 + strlen("value2") + 1 +
-            strlen("value3") + 1 + strlen("value4") + 1);
-  ASSERT_STREQ(keys + strlen("key1") + 1 + strlen("key2") + 1 + strlen("key3") +
-               1, "key4");
-  ASSERT_STREQ(vals + strlen("value1") + 1 + strlen("value2") + 1 +
-               strlen("value3") + 1, "value4");
-
-  ASSERT_EQ(0, rbd_metadata_list(image1, "", 0, keys, &keys_len, vals,
-                                 &vals_len));
-  ASSERT_EQ(keys_len,
-            strlen("key1") + 1 + strlen("key2") + 1 + strlen("key3") + 1);
-  ASSERT_EQ(vals_len,
-            strlen("value1") + 1 + strlen("value2") + 1 + strlen("value3") + 1);
-  ASSERT_EQ(-ENOENT, rbd_metadata_get(image1, "key4", value, &value_len));
-
-  // test short buffer cases
-  keys_len = strlen("key1") + 1;
-  vals_len = strlen("value1") + 1;
-  memset_rand(keys, keys_len);
-  memset_rand(vals, vals_len);
-  ASSERT_EQ(0, rbd_metadata_list(image2, "", 1, keys, &keys_len, vals,
-                                 &vals_len));
-  ASSERT_EQ(keys_len, strlen("key1") + 1);
-  ASSERT_EQ(vals_len, strlen("value1") + 1);
-  ASSERT_STREQ(keys, "key1");
-  ASSERT_STREQ(vals, "value1");
-
-  ASSERT_EQ(-ERANGE, rbd_metadata_list(image2, "", 2, keys, &keys_len, vals,
-                                       &vals_len));
-  ASSERT_EQ(keys_len, strlen("key1") + 1 + strlen("key2") + 1);
-  ASSERT_EQ(vals_len, strlen("value1") + 1 + strlen("value2") + 1);
-
-  ASSERT_EQ(-ERANGE, rbd_metadata_list(image2, "", 0, keys, &keys_len, vals,
-                                       &vals_len));
-  ASSERT_EQ(keys_len, strlen("key1") + 1 + strlen("key2") + 1 + strlen("key3") +
-            1 + strlen("key4") + 1);
-  ASSERT_EQ(vals_len, strlen("value1") + 1 + strlen("value2") + 1 +
-            strlen("value3") + 1 + strlen("value4") + 1);
-
-  // test `start` param
-  keys_len = sizeof(keys);
-  vals_len = sizeof(vals);
-  memset_rand(keys, keys_len);
-  memset_rand(vals, vals_len);
-  ASSERT_EQ(0, rbd_metadata_list(image2, "key2", 0, keys, &keys_len, vals,
-                                 &vals_len));
-  ASSERT_EQ(keys_len, strlen("key3") + 1 + strlen("key4") + 1);
-  ASSERT_EQ(vals_len, strlen("value3") + 1 + strlen("value4") + 1);
-  ASSERT_STREQ(keys, "key3");
-  ASSERT_STREQ(vals, "value3");
-
-  ASSERT_EQ(0, rbd_close(image));
-  ASSERT_EQ(0, rbd_close(image1));
-  ASSERT_EQ(0, rbd_close(image2));
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, MetadataPP)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  int order = 0;
-  uint64_t features;
-  string value;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image1;
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-  map<string, bufferlist> pairs;
-  ASSERT_EQ(0, image1.metadata_list("", 0, &pairs));
-  ASSERT_TRUE(pairs.empty());
-
-  ASSERT_EQ(0, image1.metadata_set("key1", "value1"));
-  ASSERT_EQ(0, image1.metadata_set("key2", "value2"));
-  ASSERT_EQ(0, image1.metadata_get("key1", &value));
-  ASSERT_EQ(0, strcmp("value1", value.c_str()));
-  ASSERT_EQ(0, image1.metadata_list("", 0, &pairs));
-  ASSERT_EQ(2U, pairs.size());
-  ASSERT_EQ(0, strncmp("value1", pairs["key1"].c_str(), 6));
-  ASSERT_EQ(0, strncmp("value2", pairs["key2"].c_str(), 6));
-
-  pairs.clear();
-  ASSERT_EQ(0, image1.metadata_remove("key1"));
-  ASSERT_EQ(-ENOENT, image1.metadata_remove("key3"));
-  ASSERT_TRUE(image1.metadata_get("key3", &value) < 0);
-  ASSERT_EQ(0, image1.metadata_list("", 0, &pairs));
-  ASSERT_EQ(1U, pairs.size());
-  ASSERT_EQ(0, strncmp("value2", pairs["key2"].c_str(), 6));
-
-  // test config setting
-  ASSERT_EQ(0, image1.metadata_set("conf_rbd_cache", "false"));
-  ASSERT_EQ(-EINVAL, image1.metadata_set("conf_rbd_cache", "INVALID_VALUE"));
-  ASSERT_EQ(0, image1.metadata_remove("conf_rbd_cache"));
-
-  // test metadata with snapshot adding
-  ASSERT_EQ(0, image1.snap_create("snap1"));
-  ASSERT_EQ(0, image1.snap_protect("snap1"));
-  ASSERT_EQ(0, image1.snap_set("snap1"));
-
-  pairs.clear();
-  ASSERT_EQ(0, image1.metadata_set("key1", "value1"));
-  ASSERT_EQ(0, image1.metadata_set("key3", "value3"));
-  ASSERT_EQ(0, image1.metadata_list("", 0, &pairs));
-  ASSERT_EQ(3U, pairs.size());
-  ASSERT_EQ(0, strncmp("value1", pairs["key1"].c_str(), 6));
-  ASSERT_EQ(0, strncmp("value2", pairs["key2"].c_str(), 6));
-  ASSERT_EQ(0, strncmp("value3", pairs["key3"].c_str(), 6));
-
-  ASSERT_EQ(0, image1.snap_set(NULL));
-  ASSERT_EQ(0, image1.metadata_list("", 0, &pairs));
-  ASSERT_EQ(3U, pairs.size());
-  ASSERT_EQ(0, strncmp("value1", pairs["key1"].c_str(), 6));
-  ASSERT_EQ(0, strncmp("value2", pairs["key2"].c_str(), 6));
-  ASSERT_EQ(0, strncmp("value3", pairs["key3"].c_str(), 6));
-
-  // test metadata with cloning
-  string cname = get_temp_image_name();
-  librbd::Image image2;
-  ASSERT_EQ(0, image1.features(&features));
-  EXPECT_EQ(0, rbd.clone(ioctx, name.c_str(), "snap1", ioctx,
-                         cname.c_str(), features, &order));
-  ASSERT_EQ(0, rbd.open(ioctx, image2, cname.c_str(), NULL));
-  ASSERT_EQ(0, image2.metadata_set("key4", "value4"));
-  pairs.clear();
-  ASSERT_EQ(0, image2.metadata_list("", 0, &pairs));
-  ASSERT_EQ(4U, pairs.size());
-  pairs.clear();
-  ASSERT_EQ(0, image1.metadata_list("", 0, &pairs));
-  ASSERT_EQ(3U, pairs.size());
-  ASSERT_EQ(-ENOENT, image1.metadata_get("key4", &value));
-}
-
-TEST_F(TestLibRBD, UpdateFeatures)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-  uint64_t size = 1 << 20;
-  int order = 0;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image;
-  ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-  uint8_t old_format;
-  ASSERT_EQ(0, image.old_format(&old_format));
-  if (old_format) {
-    ASSERT_EQ(-EINVAL, image.update_features(RBD_FEATURE_EXCLUSIVE_LOCK, true));
-    return;
-  }
-
-  uint64_t features;
-  ASSERT_EQ(0, image.features(&features));
-
-  // must provide a single feature
-  ASSERT_EQ(-EINVAL, image.update_features(0, true));
-
-  uint64_t disable_features;
-  disable_features = features & (RBD_FEATURE_EXCLUSIVE_LOCK |
-                                 RBD_FEATURE_OBJECT_MAP |
-                                 RBD_FEATURE_FAST_DIFF |
-                                 RBD_FEATURE_JOURNALING);
-  if (disable_features != 0) {
-    ASSERT_EQ(0, image.update_features(disable_features, false));
-  }
-
-  ASSERT_EQ(0, image.features(&features));
-  ASSERT_EQ(0U, features & disable_features);
-
-  // cannot enable object map nor journaling w/o exclusive lock
-  ASSERT_EQ(-EINVAL, image.update_features(RBD_FEATURE_OBJECT_MAP, true));
-  ASSERT_EQ(-EINVAL, image.update_features(RBD_FEATURE_JOURNALING, true));
-  ASSERT_EQ(0, image.update_features(RBD_FEATURE_EXCLUSIVE_LOCK, true));
-
-  ASSERT_EQ(0, image.features(&features));
-  ASSERT_NE(0U, features & RBD_FEATURE_EXCLUSIVE_LOCK);
-
-  // cannot enable fast diff w/o object map
-  ASSERT_EQ(-EINVAL, image.update_features(RBD_FEATURE_FAST_DIFF, true));
-  ASSERT_EQ(0, image.update_features(RBD_FEATURE_OBJECT_MAP, true));
-  ASSERT_EQ(0, image.features(&features));
-  ASSERT_NE(0U, features & RBD_FEATURE_OBJECT_MAP);
-
-  uint64_t expected_flags = RBD_FLAG_OBJECT_MAP_INVALID;
-  uint64_t flags;
-  ASSERT_EQ(0, image.get_flags(&flags));
-  ASSERT_EQ(expected_flags, flags);
-
-  ASSERT_EQ(0, image.update_features(RBD_FEATURE_OBJECT_MAP, false));
-  ASSERT_EQ(0, image.features(&features));
-  ASSERT_EQ(0U, features & RBD_FEATURE_OBJECT_MAP);
-
-  ASSERT_EQ(0, image.update_features(RBD_FEATURE_OBJECT_MAP |
-                                     RBD_FEATURE_FAST_DIFF |
-                                     RBD_FEATURE_JOURNALING, true));
-
-  expected_flags = RBD_FLAG_OBJECT_MAP_INVALID | RBD_FLAG_FAST_DIFF_INVALID;
-  ASSERT_EQ(0, image.get_flags(&flags));
-  ASSERT_EQ(expected_flags, flags);
-
-  // cannot disable object map w/ fast diff
-  ASSERT_EQ(-EINVAL, image.update_features(RBD_FEATURE_OBJECT_MAP, false));
-  ASSERT_EQ(0, image.update_features(RBD_FEATURE_FAST_DIFF, false));
-  ASSERT_EQ(0, image.features(&features));
-  ASSERT_EQ(0U, features & RBD_FEATURE_FAST_DIFF);
-
-  expected_flags = RBD_FLAG_OBJECT_MAP_INVALID;
-  ASSERT_EQ(0, image.get_flags(&flags));
-  ASSERT_EQ(expected_flags, flags);
-
-  // cannot disable exclusive lock w/ object map
-  ASSERT_EQ(-EINVAL, image.update_features(RBD_FEATURE_EXCLUSIVE_LOCK, false));
-  ASSERT_EQ(0, image.update_features(RBD_FEATURE_OBJECT_MAP, false));
-
-  // cannot disable exclusive lock w/ journaling
-  ASSERT_EQ(-EINVAL, image.update_features(RBD_FEATURE_EXCLUSIVE_LOCK, false));
-  ASSERT_EQ(0, image.update_features(RBD_FEATURE_JOURNALING, false));
-
-  ASSERT_EQ(0, image.get_flags(&flags));
-  ASSERT_EQ(0U, flags);
-
-  ASSERT_EQ(0, image.update_features(RBD_FEATURE_EXCLUSIVE_LOCK, false));
-
-  ASSERT_EQ(0, image.features(&features));
-  if ((features & RBD_FEATURE_DEEP_FLATTEN) != 0) {
-    ASSERT_EQ(0, image.update_features(RBD_FEATURE_DEEP_FLATTEN, false));
-  }
-  ASSERT_EQ(-EINVAL, image.update_features(RBD_FEATURE_DEEP_FLATTEN, true));
-}
-
-TEST_F(TestLibRBD, RebuildObjectMap)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-  uint64_t size = 1 << 20;
-  int order = 18;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  PrintProgress prog_ctx;
-  std::string object_map_oid;
-  bufferlist bl;
-  bl.append("foo");
-  {
-    librbd::Image image;
-    ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-    uint64_t features;
-    ASSERT_EQ(0, image.features(&features));
-    if ((features & RBD_FEATURE_OBJECT_MAP) == 0) {
-      ASSERT_EQ(-EINVAL, image.rebuild_object_map(prog_ctx));
-      return;
-    }
-
-    ASSERT_EQ((ssize_t)bl.length(), image.write(0, bl.length(), bl));
-
-    ASSERT_EQ(0, image.snap_create("snap1"));
-    ASSERT_EQ((ssize_t)bl.length(), image.write(1<<order, bl.length(), bl));
-
-    std::string image_id;
-    ASSERT_EQ(0, get_image_id(image, &image_id));
-    object_map_oid = RBD_OBJECT_MAP_PREFIX + image_id;
-  }
-
-  // corrupt the object map
-  ASSERT_EQ(0, ioctx.write(object_map_oid, bl, bl.length(), 0));
-
-  librbd::Image image1;
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-
-  bool lock_owner;
-  bl.clear();
-  ASSERT_EQ(0, image1.write(0, 0, bl));
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-
-  uint64_t flags;
-  ASSERT_EQ(0, image1.get_flags(&flags));
-  ASSERT_TRUE((flags & RBD_FLAG_OBJECT_MAP_INVALID) != 0);
-
-  ASSERT_EQ(0, image1.rebuild_object_map(prog_ctx));
-
-  librbd::Image image2;
-  ASSERT_EQ(0, rbd.open(ioctx, image2, name.c_str(), NULL));
-
-  bufferlist read_bl;
-  ASSERT_EQ((ssize_t)bl.length(), image2.read(0, bl.length(), read_bl));
-  ASSERT_TRUE(bl.contents_equal(read_bl));
-
-  read_bl.clear();
-  ASSERT_EQ((ssize_t)bl.length(), image2.read(1<<order, bl.length(), read_bl));
-  ASSERT_TRUE(bl.contents_equal(read_bl));
-
-  ASSERT_PASSED(validate_object_map, image1);
-  ASSERT_PASSED(validate_object_map, image2);
-}
-
-TEST_F(TestLibRBD, RebuildNewObjectMap)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
-
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  std::string name = get_temp_image_name();
-  uint64_t size = 1 << 20;
-  int order = 18;
-  uint64_t features = RBD_FEATURE_EXCLUSIVE_LOCK;
-  ASSERT_EQ(0, create_image_full(ioctx, name.c_str(), size, &order,
-                                false, features));
-
-  rbd_image_t image;
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-  ASSERT_EQ(0, rbd_update_features(image, RBD_FEATURE_OBJECT_MAP, true));
-  ASSERT_EQ(0, rbd_rebuild_object_map(image, print_progress_percent, NULL));
-
-  ASSERT_PASSED(validate_object_map, image);
-
-  ASSERT_EQ(0, rbd_close(image));
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, CheckObjectMap)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-  uint64_t size = 1 << 20;
-  int order = 18;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  PrintProgress prog_ctx;
-  bufferlist bl1;
-  bufferlist bl2;
-  bl1.append("foo");
-  {
-    librbd::Image image;
-    ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-    uint64_t features;
-    ASSERT_EQ(0, image.features(&features));
-
-    ASSERT_EQ((ssize_t)bl1.length(), image.write(0, bl1.length(), bl1));
-
-    ASSERT_EQ(0, image.snap_create("snap1"));
-    ASSERT_EQ((ssize_t)bl1.length(), image.write(1<<order, bl1.length(), bl1));
-  }
-
-  librbd::Image image1;
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-
-  std::string image_id;
-  ASSERT_EQ(0, get_image_id(image1, &image_id));
-
-  std::string object_map_oid = RBD_OBJECT_MAP_PREFIX + image_id;
-
-  ASSERT_LT(0, ioctx.read(object_map_oid, bl2, 1024, 0));
-
-  bool lock_owner;
-  ASSERT_EQ((ssize_t)bl1.length(), image1.write(3 * (1 << 18), bl1.length(), bl1));
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-
-  //reopen image to reread now corrupt object map from disk
-  image1.close();
-
-  bl1.clear();
-  ASSERT_LT(0, ioctx.read(object_map_oid, bl1, 1024, 0));
-  ASSERT_FALSE(bl1.contents_equal(bl2));
-
-  ASSERT_EQ(0, ioctx.write_full(object_map_oid, bl2));
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-
-  uint64_t flags;
-  ASSERT_EQ(0, image1.get_flags(&flags));
-  ASSERT_TRUE((flags & RBD_FLAG_OBJECT_MAP_INVALID) == 0);
-
-  ASSERT_EQ(0, image1.check_object_map(prog_ctx));
-
-  ASSERT_EQ(0, image1.get_flags(&flags));
-  ASSERT_TRUE((flags & RBD_FLAG_OBJECT_MAP_INVALID) != 0);
-}
-
-TEST_F(TestLibRBD, BlockingAIO)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  bool skip_discard = is_skip_partial_discard_enabled();
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-  uint64_t size = 1 << 20;
-  int order = 18;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  std::string non_blocking_aio;
-  ASSERT_EQ(0, _rados.conf_get("rbd_non_blocking_aio", non_blocking_aio));
-  ASSERT_EQ(0, _rados.conf_set("rbd_non_blocking_aio", "0"));
-  BOOST_SCOPE_EXIT( (non_blocking_aio) ) {
-    ASSERT_EQ(0, _rados.conf_set("rbd_non_blocking_aio",
-                                 non_blocking_aio.c_str()));
-  } BOOST_SCOPE_EXIT_END;
-
-  librbd::Image image;
-  ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-  bufferlist bl;
-  ASSERT_EQ(0, image.write(0, bl.length(), bl));
-
-  bl.append(std::string(256, '1'));
-  librbd::RBD::AioCompletion *write_comp =
-    new librbd::RBD::AioCompletion(NULL, NULL);
-  ASSERT_EQ(0, image.aio_write(0, bl.length(), bl, write_comp));
-
-  librbd::RBD::AioCompletion *flush_comp =
-    new librbd::RBD::AioCompletion(NULL, NULL);
-  ASSERT_EQ(0, image.aio_flush(flush_comp));
-  ASSERT_EQ(0, flush_comp->wait_for_complete());
-  ASSERT_EQ(0, flush_comp->get_return_value());
-  flush_comp->release();
-
-  ASSERT_EQ(1, write_comp->is_complete());
-  ASSERT_EQ(0, write_comp->get_return_value());
-  write_comp->release();
-
-  librbd::RBD::AioCompletion *discard_comp =
-    new librbd::RBD::AioCompletion(NULL, NULL);
-  ASSERT_EQ(0, image.aio_discard(128, 128, discard_comp));
-  ASSERT_EQ(0, discard_comp->wait_for_complete());
-  discard_comp->release();
-
-  librbd::RBD::AioCompletion *read_comp =
-    new librbd::RBD::AioCompletion(NULL, NULL);
-  bufferlist read_bl;
-  image.aio_read(0, bl.length(), read_bl, read_comp);
-  ASSERT_EQ(0, read_comp->wait_for_complete());
-  ASSERT_EQ((ssize_t)bl.length(), read_comp->get_return_value());
-  read_comp->release();
-
-  bufferlist expected_bl;
-  expected_bl.append(std::string(128, '1'));
-  expected_bl.append(std::string(128, skip_discard ? '1' : '\0'));
-  ASSERT_TRUE(expected_bl.contents_equal(read_bl));
-}
-
-TEST_F(TestLibRBD, ExclusiveLockTransition)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-
-  uint64_t size = 1 << 18;
-  int order = 12;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image1;
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-
-  librbd::Image image2;
-  ASSERT_EQ(0, rbd.open(ioctx, image2, name.c_str(), NULL));
-
-  std::list<librbd::RBD::AioCompletion *> comps;
-  ceph::bufferlist bl;
-  bl.append(std::string(1 << order, '1'));
-  for (size_t object_no = 0; object_no < (size >> 12); ++object_no) {
-    librbd::RBD::AioCompletion *comp = new librbd::RBD::AioCompletion(NULL,
-                                                                      NULL);
-    comps.push_back(comp);
-    if (object_no % 2 == 0) {
-      ASSERT_EQ(0, image1.aio_write(object_no << order, bl.length(), bl, comp));
-    } else {
-      ASSERT_EQ(0, image2.aio_write(object_no << order, bl.length(), bl, comp));
-    }
-  }
-
-  while (!comps.empty()) {
-    librbd::RBD::AioCompletion *comp = comps.front();
-    comps.pop_front();
-    ASSERT_EQ(0, comp->wait_for_complete());
-    ASSERT_EQ(1, comp->is_complete());
-    comp->release();
-  }
-
-  librbd::Image image3;
-  ASSERT_EQ(0, rbd.open(ioctx, image3, name.c_str(), NULL));
-  for (size_t object_no = 0; object_no < (size >> 12); ++object_no) {
-    bufferlist read_bl;
-    ASSERT_EQ((ssize_t)bl.length(), image3.read(object_no << order, bl.length(),
-                                               read_bl));
-    ASSERT_TRUE(bl.contents_equal(read_bl));
-  }
-
-  ASSERT_PASSED(validate_object_map, image1);
-  ASSERT_PASSED(validate_object_map, image2);
-  ASSERT_PASSED(validate_object_map, image3);
-}
-
-TEST_F(TestLibRBD, ExclusiveLockReadTransition)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_JOURNALING);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-
-  uint64_t size = 1 << 18;
-  int order = 12;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image1;
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-
-  bool lock_owner;
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_FALSE(lock_owner);
-
-  // journaling should force read ops to acquire the lock
-  bufferlist read_bl;
-  ASSERT_EQ(0, image1.read(0, 0, read_bl));
-
-  ASSERT_EQ(0, image1.is_exclusive_lock_owner(&lock_owner));
-  ASSERT_TRUE(lock_owner);
-
-  librbd::Image image2;
-  ASSERT_EQ(0, rbd.open(ioctx, image2, name.c_str(), NULL));
-
-  std::list<librbd::RBD::AioCompletion *> comps;
-  std::list<bufferlist> read_bls;
-  for (size_t object_no = 0; object_no < (size >> 12); ++object_no) {
-    librbd::RBD::AioCompletion *comp = new librbd::RBD::AioCompletion(NULL,
-                                                                      NULL);
-    comps.push_back(comp);
-    read_bls.emplace_back();
-    if (object_no % 2 == 0) {
-      ASSERT_EQ(0, image1.aio_read(object_no << order, 1 << order, read_bls.back(), comp));
-    } else {
-      ASSERT_EQ(0, image2.aio_read(object_no << order, 1 << order, read_bls.back(), comp));
-    }
-  }
-
-  while (!comps.empty()) {
-    librbd::RBD::AioCompletion *comp = comps.front();
-    comps.pop_front();
-    ASSERT_EQ(0, comp->wait_for_complete());
-    ASSERT_EQ(1, comp->is_complete());
-    comp->release();
-  }
-}
-
-TEST_F(TestLibRBD, CacheMayCopyOnWrite) {
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-
-  uint64_t size = 1 << 18;
-  int order = 12;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image;
-  ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-  ASSERT_EQ(0, image.snap_create("one"));
-  ASSERT_EQ(0, image.snap_protect("one"));
-
-  std::string clone_name = this->get_temp_image_name();
-  ASSERT_EQ(0, rbd.clone(ioctx, name.c_str(), "one", ioctx, clone_name.c_str(),
-                         RBD_FEATURE_LAYERING, &order));
-
-  librbd::Image clone;
-  ASSERT_EQ(0, rbd.open(ioctx, clone, clone_name.c_str(), NULL));
-  ASSERT_EQ(0, clone.flush());
-
-  bufferlist expect_bl;
-  expect_bl.append(std::string(1024, '\0'));
-
-  // test double read path
-  bufferlist read_bl;
-  uint64_t offset = 0;
-  ASSERT_EQ(1024, clone.read(offset + 2048, 1024, read_bl));
-  ASSERT_TRUE(expect_bl.contents_equal(read_bl));
-
-  bufferlist write_bl;
-  write_bl.append(std::string(1024, '1'));
-  ASSERT_EQ(1024, clone.write(offset, write_bl.length(), write_bl));
-
-  read_bl.clear();
-  ASSERT_EQ(1024, clone.read(offset + 2048, 1024, read_bl));
-  ASSERT_TRUE(expect_bl.contents_equal(read_bl));
-
-  // test read retry path
-  offset = 1 << order;
-  ASSERT_EQ(1024, clone.write(offset, write_bl.length(), write_bl));
-
-  read_bl.clear();
-  ASSERT_EQ(1024, clone.read(offset + 2048, 1024, read_bl));
-  ASSERT_TRUE(expect_bl.contents_equal(read_bl));
-}
-
-TEST_F(TestLibRBD, FlushEmptyOpsOnExternalSnapshot) {
-  std::string cache_enabled;
-  ASSERT_EQ(0, _rados.conf_get("rbd_cache", cache_enabled));
-  ASSERT_EQ(0, _rados.conf_set("rbd_cache", "false"));
-  BOOST_SCOPE_EXIT( (cache_enabled) ) {
-    ASSERT_EQ(0, _rados.conf_set("rbd_cache", cache_enabled.c_str()));
-  } BOOST_SCOPE_EXIT_END;
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-  uint64_t size = 1 << 18;
-  int order = 0;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image1;
-  librbd::Image image2;
-  ASSERT_EQ(0, rbd.open(ioctx, image1, name.c_str(), NULL));
-  ASSERT_EQ(0, rbd.open(ioctx, image2, name.c_str(), NULL));
-  ASSERT_EQ(0, image1.snap_create("snap1"));
-
-  librbd::RBD::AioCompletion *read_comp =
-    new librbd::RBD::AioCompletion(NULL, NULL);
-  bufferlist read_bl;
-  image2.aio_read(0, 1024, read_bl, read_comp);
-  ASSERT_EQ(0, read_comp->wait_for_complete());
-  read_comp->release();
-}
-
-TEST_F(TestLibRBD, TestImageOptions)
-{
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  //make create image options
-  uint64_t features = RBD_FEATURE_LAYERING | RBD_FEATURE_STRIPINGV2 ;
-  uint64_t order = 0;
-  uint64_t stripe_unit = IMAGE_STRIPE_UNIT;
-  uint64_t stripe_count = IMAGE_STRIPE_COUNT;
-  rbd_image_options_t opts;
-  rbd_image_options_create(&opts);
-
-  bool is_set;
-  ASSERT_EQ(-EINVAL, rbd_image_options_is_set(opts, 12345, &is_set));
-  ASSERT_EQ(0, rbd_image_options_is_set(opts, RBD_IMAGE_OPTION_FORMAT,
-                                        &is_set));
-  ASSERT_FALSE(is_set);
-
-  ASSERT_EQ(0, rbd_image_options_set_uint64(opts, RBD_IMAGE_OPTION_FORMAT,
-         2));
-  ASSERT_EQ(0, rbd_image_options_set_uint64(opts, RBD_IMAGE_OPTION_FEATURES,
-         features));
-  ASSERT_EQ(0, rbd_image_options_set_uint64(opts, RBD_IMAGE_OPTION_ORDER,
-         order));
-  ASSERT_EQ(0, rbd_image_options_set_uint64(opts, RBD_IMAGE_OPTION_STRIPE_UNIT,
-         stripe_unit));
-  ASSERT_EQ(0, rbd_image_options_set_uint64(opts, RBD_IMAGE_OPTION_STRIPE_COUNT,
-         stripe_count));
-
-  ASSERT_EQ(0, rbd_image_options_is_set(opts, RBD_IMAGE_OPTION_FORMAT,
-                                        &is_set));
-  ASSERT_TRUE(is_set);
-
-  std::string parent_name = get_temp_image_name();
-
-  // make parent
-  ASSERT_EQ(0, rbd_create4(ioctx, parent_name.c_str(), 4<<20, opts));
-
-  // check order is returned in opts
-  ASSERT_EQ(0, rbd_image_options_get_uint64(opts, RBD_IMAGE_OPTION_ORDER,
-         &order));
-  ASSERT_NE((uint64_t)0, order);
-
-  // write some data to parent
-  rbd_image_t parent;
-  ASSERT_EQ(0, rbd_open(ioctx, parent_name.c_str(), &parent, NULL));
-  char *data = (char *)"testdata";
-  ASSERT_EQ((ssize_t)strlen(data), rbd_write(parent, 0, strlen(data), data));
-  ASSERT_EQ((ssize_t)strlen(data), rbd_write(parent, 12, strlen(data), data));
-
-  // create a snapshot, reopen as the parent we're interested in
-  ASSERT_EQ(0, rbd_snap_create(parent, "parent_snap"));
-  ASSERT_EQ(0, rbd_close(parent));
-  ASSERT_EQ(0, rbd_open(ioctx, parent_name.c_str(), &parent, "parent_snap"));
-
-  // clone
-  std::string child_name = get_temp_image_name();
-  ASSERT_EQ(0, rbd_snap_protect(parent, "parent_snap"));
-  ASSERT_EQ(0, rbd_clone3(ioctx, parent_name.c_str(), "parent_snap", ioctx,
-         child_name.c_str(), opts));
-
-  // copy
-  std::string copy1_name = get_temp_image_name();
-  ASSERT_EQ(0, rbd_copy3(parent, ioctx, copy1_name.c_str(), opts));
-  std::string copy2_name = get_temp_image_name();
-  ASSERT_EQ(0, rbd_copy_with_progress3(parent, ioctx, copy2_name.c_str(), opts,
-         print_progress_percent, NULL));
-
-  ASSERT_EQ(0, rbd_close(parent));
-
-  rbd_image_options_destroy(opts);
-
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, TestImageOptionsPP)
-{
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  //make create image options
-  uint64_t features = RBD_FEATURE_LAYERING | RBD_FEATURE_STRIPINGV2 ;
-  uint64_t order = 0;
-  uint64_t stripe_unit = IMAGE_STRIPE_UNIT;
-  uint64_t stripe_count = IMAGE_STRIPE_COUNT;
-  librbd::ImageOptions opts;
-  ASSERT_EQ(0, opts.set(RBD_IMAGE_OPTION_FORMAT, static_cast<uint64_t>(2)));
-  ASSERT_EQ(0, opts.set(RBD_IMAGE_OPTION_FEATURES, features));
-  ASSERT_EQ(0, opts.set(RBD_IMAGE_OPTION_ORDER, order));
-  ASSERT_EQ(0, opts.set(RBD_IMAGE_OPTION_STRIPE_UNIT, stripe_unit));
-  ASSERT_EQ(0, opts.set(RBD_IMAGE_OPTION_STRIPE_COUNT, stripe_count));
-
-  librbd::RBD rbd;
-  std::string parent_name = get_temp_image_name();
-
-  // make parent
-  ASSERT_EQ(0, rbd.create4(ioctx, parent_name.c_str(), 4<<20, opts));
-
-  // check order is returned in opts
-  ASSERT_EQ(0, opts.get(RBD_IMAGE_OPTION_ORDER, &order));
-  ASSERT_NE((uint64_t)0, order);
-
-  // write some data to parent
-  librbd::Image parent;
-  ASSERT_EQ(0, rbd.open(ioctx, parent, parent_name.c_str(), NULL));
-
-  ssize_t len = 1024;
-  bufferlist bl;
-  bl.append(buffer::create(len));
-  bl.zero();
-  ASSERT_EQ(len, parent.write(0, len, bl));
-  ASSERT_EQ(len, parent.write(len, len, bl));
-
-  // create a snapshot, reopen as the parent we're interested in
-  ASSERT_EQ(0, parent.snap_create("parent_snap"));
-  ASSERT_EQ(0, parent.close());
-  ASSERT_EQ(0, rbd.open(ioctx, parent, parent_name.c_str(), "parent_snap"));
-
-  // clone
-  std::string child_name = get_temp_image_name();
-  ASSERT_EQ(0, parent.snap_protect("parent_snap"));
-  ASSERT_EQ(0, rbd.clone3(ioctx, parent_name.c_str(), "parent_snap", ioctx,
-         child_name.c_str(), opts));
-
-  // copy
-  std::string copy1_name = get_temp_image_name();
-  ASSERT_EQ(0, parent.copy3(ioctx, copy1_name.c_str(), opts));
-  std::string copy2_name = get_temp_image_name();
-  PrintProgress pp;
-  ASSERT_EQ(0, parent.copy_with_progress3(ioctx, copy2_name.c_str(), opts, pp));
-
-  ASSERT_EQ(0, parent.close());
-}
-
-TEST_F(TestLibRBD, EventSocketPipe)
-{
-  EventSocket event_sock;
-  int pipe_fd[2]; // read and write fd
-  char buf[32];
-
-  ASSERT_EQ(0, pipe(pipe_fd));
-
-  ASSERT_FALSE(event_sock.is_valid());
-
-  ASSERT_EQ(-EINVAL, event_sock.init(pipe_fd[1], EVENT_SOCKET_TYPE_NONE));
-  ASSERT_FALSE(event_sock.is_valid());
-
-  ASSERT_EQ(-EINVAL, event_sock.init(pipe_fd[1], 44));
-  ASSERT_FALSE(event_sock.is_valid());
-
-#ifndef HAVE_EVENTFD
-  ASSERT_EQ(-EINVAL, event_sock.init(pipe_fd[1], EVENT_SOCKET_TYPE_EVENTFD));
-  ASSERT_FALSE(event_sock.is_valid());
-#endif
-
-  ASSERT_EQ(0, event_sock.init(pipe_fd[1], EVENT_SOCKET_TYPE_PIPE));
-  ASSERT_TRUE(event_sock.is_valid());
-  ASSERT_EQ(0, event_sock.notify());
-  ASSERT_EQ(1, read(pipe_fd[0], buf, 32));
-  ASSERT_EQ('i', buf[0]);
-
-  close(pipe_fd[0]);
-  close(pipe_fd[1]);
-}
-
-TEST_F(TestLibRBD, EventSocketEventfd)
-{
-#ifdef HAVE_EVENTFD
-  EventSocket event_sock;
-  int event_fd;
-  struct pollfd poll_fd;
-  char buf[32];
-
-  event_fd = eventfd(0, EFD_NONBLOCK);
-  ASSERT_NE(-1, event_fd);
-
-  ASSERT_FALSE(event_sock.is_valid());
-
-  ASSERT_EQ(-EINVAL, event_sock.init(event_fd, EVENT_SOCKET_TYPE_NONE));
-  ASSERT_FALSE(event_sock.is_valid());
-
-  ASSERT_EQ(-EINVAL, event_sock.init(event_fd, 44));
-  ASSERT_FALSE(event_sock.is_valid());
-
-  ASSERT_EQ(0, event_sock.init(event_fd, EVENT_SOCKET_TYPE_EVENTFD));
-  ASSERT_TRUE(event_sock.is_valid());
-  ASSERT_EQ(0, event_sock.notify());
-
-  poll_fd.fd = event_fd;
-  poll_fd.events = POLLIN;
-  ASSERT_EQ(1, poll(&poll_fd, 1, -1));
-  ASSERT_TRUE(poll_fd.revents & POLLIN);
-
-  ASSERT_EQ(static_cast<ssize_t>(sizeof(uint64_t)), read(event_fd, buf, 32));
-  ASSERT_EQ(1U, *reinterpret_cast<uint64_t *>(buf));
-
-  close(event_fd);
-#endif
-}
-
-TEST_F(TestLibRBD, ImagePollIO)
-{
-#ifdef HAVE_EVENTFD
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  rbd_image_t image;
-  int order = 0;
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  int fd = eventfd(0, EFD_NONBLOCK);
-
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-
-  ASSERT_EQ(0, rbd_set_image_notification(image, fd, EVENT_SOCKET_TYPE_EVENTFD));
-
-  char test_data[TEST_IO_SIZE + 1];
-  char zero_data[TEST_IO_SIZE + 1];
-  int i;
-
-  for (i = 0; i < TEST_IO_SIZE; ++i)
-    test_data[i] = (char) (rand() % (126 - 33) + 33);
-  test_data[TEST_IO_SIZE] = '\0';
-  memset(zero_data, 0, sizeof(zero_data));
-
-  for (i = 0; i < 5; ++i)
-    ASSERT_PASSED(write_test_data, image, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE, 0);
-
-  for (i = 5; i < 10; ++i)
-    ASSERT_PASSED(aio_write_test_data_and_poll, image, fd, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE, 0);
-
-  for (i = 5; i < 10; ++i)
-    ASSERT_PASSED(aio_read_test_data_and_poll, image, fd, test_data, TEST_IO_SIZE * i, TEST_IO_SIZE, 0);
-
-  ASSERT_EQ(0, rbd_close(image));
-  rados_ioctx_destroy(ioctx);
-#endif
-}
-
-namespace librbd {
-
-static bool operator==(const mirror_peer_t &lhs, const mirror_peer_t &rhs) {
-  return (lhs.uuid == rhs.uuid &&
-          lhs.cluster_name == rhs.cluster_name &&
-          lhs.client_name == rhs.client_name);
-}
-
-static std::ostream& operator<<(std::ostream &os, const mirror_peer_t &peer) {
-  os << "uuid=" << peer.uuid << ", "
-     << "cluster=" << peer.cluster_name << ", "
-     << "client=" << peer.client_name;
-  return os;
-}
-
-} // namespace librbd
-
-TEST_F(TestLibRBD, Mirror) {
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-
-  std::vector<librbd::mirror_peer_t> expected_peers;
-  std::vector<librbd::mirror_peer_t> peers;
-  ASSERT_EQ(0, rbd.mirror_peer_list(ioctx, &peers));
-  ASSERT_EQ(expected_peers, peers);
-
-  std::string uuid1;
-  ASSERT_EQ(-EINVAL, rbd.mirror_peer_add(ioctx, &uuid1, "cluster1", "client"));
-
-  rbd_mirror_mode_t mirror_mode;
-  ASSERT_EQ(0, rbd.mirror_mode_get(ioctx, &mirror_mode));
-  ASSERT_EQ(RBD_MIRROR_MODE_DISABLED, mirror_mode);
-
-  ASSERT_EQ(0, rbd.mirror_mode_set(ioctx, RBD_MIRROR_MODE_IMAGE));
-  ASSERT_EQ(0, rbd.mirror_mode_get(ioctx, &mirror_mode));
-
-  // Add some images to the pool
-  int order = 0;
-  std::string parent_name = get_temp_image_name();
-  std::string child_name = get_temp_image_name();
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, parent_name.c_str(), 2 << 20,
-                               &order));
-  bool old_format;
-  uint64_t features;
-  ASSERT_EQ(0, get_features(&old_format, &features));
-  if ((features & RBD_FEATURE_LAYERING) != 0) {
-    librbd::Image parent;
-    ASSERT_EQ(0, rbd.open(ioctx, parent, parent_name.c_str(), NULL));
-    ASSERT_EQ(0, parent.snap_create("parent_snap"));
-    ASSERT_EQ(0, parent.close());
-    ASSERT_EQ(0, rbd.open(ioctx, parent, parent_name.c_str(), "parent_snap"));
-    ASSERT_EQ(0, parent.snap_protect("parent_snap"));
-    ASSERT_EQ(0, parent.close());
-    ASSERT_EQ(0, rbd.clone(ioctx, parent_name.c_str(), "parent_snap", ioctx,
-                           child_name.c_str(), features, &order));
-  }
-
-  ASSERT_EQ(RBD_MIRROR_MODE_IMAGE, mirror_mode);
-
-  ASSERT_EQ(0, rbd.mirror_mode_set(ioctx, RBD_MIRROR_MODE_POOL));
-  ASSERT_EQ(0, rbd.mirror_mode_get(ioctx, &mirror_mode));
-  ASSERT_EQ(RBD_MIRROR_MODE_POOL, mirror_mode);
-
-  std::string uuid2;
-  std::string uuid3;
-  ASSERT_EQ(0, rbd.mirror_peer_add(ioctx, &uuid1, "cluster1", "client"));
-  ASSERT_EQ(0, rbd.mirror_peer_add(ioctx, &uuid2, "cluster2", "admin"));
-  ASSERT_EQ(-EEXIST, rbd.mirror_peer_add(ioctx, &uuid3, "cluster1", "foo"));
-  ASSERT_EQ(0, rbd.mirror_peer_add(ioctx, &uuid3, "cluster3", "admin"));
-
-  ASSERT_EQ(0, rbd.mirror_peer_list(ioctx, &peers));
-  auto sort_peers = [](const librbd::mirror_peer_t &lhs,
-                         const librbd::mirror_peer_t &rhs) {
-      return lhs.uuid < rhs.uuid;
-    };
-  expected_peers = {
-    {uuid1, "cluster1", "client"},
-    {uuid2, "cluster2", "admin"},
-    {uuid3, "cluster3", "admin"}};
-  std::sort(expected_peers.begin(), expected_peers.end(), sort_peers);
-  ASSERT_EQ(expected_peers, peers);
-
-  ASSERT_EQ(0, rbd.mirror_peer_remove(ioctx, "uuid4"));
-  ASSERT_EQ(0, rbd.mirror_peer_remove(ioctx, uuid2));
-
-  ASSERT_EQ(-ENOENT, rbd.mirror_peer_set_client(ioctx, "uuid4", "new client"));
-  ASSERT_EQ(0, rbd.mirror_peer_set_client(ioctx, uuid1, "new client"));
-
-  ASSERT_EQ(-ENOENT, rbd.mirror_peer_set_cluster(ioctx, "uuid4",
-                                                 "new cluster"));
-  ASSERT_EQ(0, rbd.mirror_peer_set_cluster(ioctx, uuid3, "new cluster"));
-
-  ASSERT_EQ(0, rbd.mirror_peer_list(ioctx, &peers));
-  expected_peers = {
-    {uuid1, "cluster1", "new client"},
-    {uuid3, "new cluster", "admin"}};
-  std::sort(expected_peers.begin(), expected_peers.end(), sort_peers);
-  ASSERT_EQ(expected_peers, peers);
-
-  ASSERT_EQ(-EBUSY, rbd.mirror_mode_set(ioctx, RBD_MIRROR_MODE_DISABLED));
-}
-
-TEST_F(TestLibRBD, FlushCacheWithCopyupOnExternalSnapshot) {
-  REQUIRE_FEATURE(RBD_FEATURE_LAYERING);
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  librbd::Image image;
-  std::string name = get_temp_image_name();
-
-  uint64_t size = 1 << 18;
-  int order = 0;
-
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-  ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-  bufferlist bl;
-  bl.append(std::string(size, '1'));
-  ASSERT_EQ((int)size, image.write(0, size, bl));
-  ASSERT_EQ(0, image.snap_create("one"));
-  ASSERT_EQ(0, image.snap_protect("one"));
-
-  std::string clone_name = this->get_temp_image_name();
-  ASSERT_EQ(0, rbd.clone(ioctx, name.c_str(), "one", ioctx, clone_name.c_str(),
-                         RBD_FEATURE_LAYERING, &order));
-  ASSERT_EQ(0, rbd.open(ioctx, image, clone_name.c_str(), NULL));
-
-  librbd::Image image2;
-  ASSERT_EQ(0, rbd.open(ioctx, image2, clone_name.c_str(), NULL));
-
-  // prepare CoW writeback that will be flushed on next op
-  bl.clear();
-  bl.append(std::string(1, '1'));
-  ASSERT_EQ(0, image.flush());
-  ASSERT_EQ(1, image.write(0, 1, bl));
-  ASSERT_EQ(0, image2.snap_create("snap1"));
-
-  librbd::RBD::AioCompletion *read_comp =
-    new librbd::RBD::AioCompletion(NULL, NULL);
-  bufferlist read_bl;
-  image.aio_read(0, 1024, read_bl, read_comp);
-  ASSERT_EQ(0, read_comp->wait_for_complete());
-  read_comp->release();
-}
-
-TEST_F(TestLibRBD, ExclusiveLock)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
-
-  static char buf[10];
-
-  rados_ioctx_t ioctx;
-  rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx);
-
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  int order = 0;
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-
-  rbd_image_t image1;
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image1, NULL));
-
-  int lock_owner;
-  ASSERT_EQ(0, rbd_lock_acquire(image1, RBD_LOCK_MODE_EXCLUSIVE));
-  ASSERT_EQ(0, rbd_is_exclusive_lock_owner(image1, &lock_owner));
-  ASSERT_TRUE(lock_owner);
-
-  rbd_lock_mode_t lock_mode;
-  char *lock_owners[1];
-  size_t max_lock_owners = 0;
-  ASSERT_EQ(-ERANGE, rbd_lock_get_owners(image1, &lock_mode, lock_owners,
-                                         &max_lock_owners));
-  ASSERT_EQ(1U, max_lock_owners);
-
-  max_lock_owners = 2;
-  ASSERT_EQ(0, rbd_lock_get_owners(image1, &lock_mode, lock_owners,
-                                   &max_lock_owners));
-  ASSERT_EQ(RBD_LOCK_MODE_EXCLUSIVE, lock_mode);
-  ASSERT_STRNE("", lock_owners[0]);
-  ASSERT_EQ(1U, max_lock_owners);
-
-  rbd_image_t image2;
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image2, NULL));
-
-  ASSERT_EQ(0, rbd_is_exclusive_lock_owner(image2, &lock_owner));
-  ASSERT_FALSE(lock_owner);
-
-  ASSERT_EQ(-EOPNOTSUPP, rbd_lock_break(image1, RBD_LOCK_MODE_SHARED, ""));
-  ASSERT_EQ(-EBUSY, rbd_lock_break(image1, RBD_LOCK_MODE_EXCLUSIVE,
-                                   "not the owner"));
-
-  ASSERT_EQ(0, rbd_lock_release(image1));
-  ASSERT_EQ(0, rbd_is_exclusive_lock_owner(image1, &lock_owner));
-  ASSERT_FALSE(lock_owner);
-
-  ASSERT_EQ(-ENOENT, rbd_lock_break(image1, RBD_LOCK_MODE_EXCLUSIVE,
-                                    lock_owners[0]));
-  rbd_lock_get_owners_cleanup(lock_owners, max_lock_owners);
-
-  ASSERT_EQ(-EROFS, rbd_write(image1, 0, sizeof(buf), buf));
-  ASSERT_EQ((ssize_t)sizeof(buf), rbd_write(image2, 0, sizeof(buf), buf));
-
-  ASSERT_EQ(0, rbd_lock_acquire(image2, RBD_LOCK_MODE_EXCLUSIVE));
-  ASSERT_EQ(0, rbd_is_exclusive_lock_owner(image2, &lock_owner));
-  ASSERT_TRUE(lock_owner);
-
-  ASSERT_EQ(0, rbd_lock_release(image2));
-  ASSERT_EQ(0, rbd_is_exclusive_lock_owner(image2, &lock_owner));
-  ASSERT_FALSE(lock_owner);
-
-  ASSERT_EQ(0, rbd_lock_acquire(image1, RBD_LOCK_MODE_EXCLUSIVE));
-  ASSERT_EQ(0, rbd_is_exclusive_lock_owner(image1, &lock_owner));
-  ASSERT_TRUE(lock_owner);
-
-  ASSERT_EQ((ssize_t)sizeof(buf), rbd_write(image1, 0, sizeof(buf), buf));
-  ASSERT_EQ(-EROFS, rbd_write(image2, 0, sizeof(buf), buf));
-
-  ASSERT_EQ(0, rbd_lock_release(image1));
-  ASSERT_EQ(0, rbd_is_exclusive_lock_owner(image1, &lock_owner));
-  ASSERT_FALSE(lock_owner);
-
-  int owner_id = -1;
-  mutex lock;
-  const auto pingpong = [&,this](int m_id, rbd_image_t &m_image) {
-      for (int i = 0; i < 10; i++) {
-       {
-         lock_guard<mutex> locker(lock);
-         if (owner_id == m_id) {
-           std::cout << m_id << ": releasing exclusive lock" << std::endl;
-           EXPECT_EQ(0, rbd_lock_release(m_image));
-           int lock_owner;
-           EXPECT_EQ(0, rbd_is_exclusive_lock_owner(m_image, &lock_owner));
-           EXPECT_FALSE(lock_owner);
-           owner_id = -1;
-           std::cout << m_id << ": exclusive lock released" << std::endl;
-           continue;
-         }
-       }
-
-       std::cout << m_id << ": acquiring exclusive lock" << std::endl;
-        int r;
-        do {
-          r = rbd_lock_acquire(m_image, RBD_LOCK_MODE_EXCLUSIVE);
-          if (r == -EROFS) {
-            usleep(1000);
-          }
-        } while (r == -EROFS);
-       EXPECT_EQ(0, r);
-
-       int lock_owner;
-       EXPECT_EQ(0, rbd_is_exclusive_lock_owner(m_image, &lock_owner));
-       EXPECT_TRUE(lock_owner);
-       std::cout << m_id << ": exclusive lock acquired" << std::endl;
-       {
-         lock_guard<mutex> locker(lock);
-         owner_id = m_id;
-       }
-       usleep(rand() % 50000);
-      }
-
-      lock_guard<mutex> locker(lock);
-      if (owner_id == m_id) {
-       EXPECT_EQ(0, rbd_lock_release(m_image));
-       int lock_owner;
-       EXPECT_EQ(0, rbd_is_exclusive_lock_owner(m_image, &lock_owner));
-       EXPECT_FALSE(lock_owner);
-       owner_id = -1;
-      }
-  };
-  thread ping(bind(pingpong, 1, ref(image1)));
-  thread pong(bind(pingpong, 2, ref(image2)));
-
-  ping.join();
-  pong.join();
-
-  ASSERT_EQ(0, rbd_lock_acquire(image2, RBD_LOCK_MODE_EXCLUSIVE));
-  ASSERT_EQ(0, rbd_is_exclusive_lock_owner(image2, &lock_owner));
-  ASSERT_TRUE(lock_owner);
-
-  ASSERT_EQ(0, rbd_close(image2));
-
-  ASSERT_EQ(0, rbd_lock_acquire(image1, RBD_LOCK_MODE_EXCLUSIVE));
-  ASSERT_EQ(0, rbd_is_exclusive_lock_owner(image1, &lock_owner));
-  ASSERT_TRUE(lock_owner);
-
-  ASSERT_EQ(0, rbd_close(image1));
-  rados_ioctx_destroy(ioctx);
-}
-
-TEST_F(TestLibRBD, BreakLock)
-{
-  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
-
-  static char buf[10];
-
-  rados_t blacklist_cluster;
-  ASSERT_EQ("", connect_cluster(&blacklist_cluster));
-
-  rados_ioctx_t ioctx, blacklist_ioctx;
-  ASSERT_EQ(0, rados_ioctx_create(_cluster, m_pool_name.c_str(), &ioctx));
-  ASSERT_EQ(0, rados_ioctx_create(blacklist_cluster, m_pool_name.c_str(),
-                                  &blacklist_ioctx));
-
-  std::string name = get_temp_image_name();
-  uint64_t size = 2 << 20;
-  int order = 0;
-  ASSERT_EQ(0, create_image(ioctx, name.c_str(), size, &order));
-
-  rbd_image_t image, blacklist_image;
-  ASSERT_EQ(0, rbd_open(ioctx, name.c_str(), &image, NULL));
-  ASSERT_EQ(0, rbd_open(blacklist_ioctx, name.c_str(), &blacklist_image, NULL));
-
-  ASSERT_EQ(0, rbd_metadata_set(image, "rbd_blacklist_on_break_lock", "true"));
-  ASSERT_EQ(0, rbd_lock_acquire(blacklist_image, RBD_LOCK_MODE_EXCLUSIVE));
-
-  rbd_lock_mode_t lock_mode;
-  char *lock_owners[1];
-  size_t max_lock_owners = 1;
-  ASSERT_EQ(0, rbd_lock_get_owners(image, &lock_mode, lock_owners,
-                                   &max_lock_owners));
-  ASSERT_EQ(RBD_LOCK_MODE_EXCLUSIVE, lock_mode);
-  ASSERT_STRNE("", lock_owners[0]);
-  ASSERT_EQ(1U, max_lock_owners);
-
-  ASSERT_EQ(0, rbd_lock_break(image, RBD_LOCK_MODE_EXCLUSIVE, lock_owners[0]));
-  ASSERT_EQ(0, rbd_lock_acquire(image, RBD_LOCK_MODE_EXCLUSIVE));
-  EXPECT_EQ(0, rados_wait_for_latest_osdmap(blacklist_cluster));
-
-  ASSERT_EQ((ssize_t)sizeof(buf), rbd_write(image, 0, sizeof(buf), buf));
-  ASSERT_EQ(-EBLACKLISTED, rbd_write(blacklist_image, 0, sizeof(buf), buf));
-
-  ASSERT_EQ(0, rbd_close(image));
-  ASSERT_EQ(0, rbd_close(blacklist_image));
-
-  rbd_lock_get_owners_cleanup(lock_owners, max_lock_owners);
-
-  rados_ioctx_destroy(ioctx);
-  rados_ioctx_destroy(blacklist_ioctx);
-  rados_shutdown(blacklist_cluster);
-}
-
-TEST_F(TestLibRBD, DiscardAfterWrite)
-{
-  REQUIRE(!is_skip_partial_discard_enabled());
-
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-  uint64_t size = 1 << 20;
-  int order = 18;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image;
-  ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), NULL));
-
-  // enable writeback cache
-  ASSERT_EQ(0, image.flush());
-
-  bufferlist bl;
-  bl.append(std::string(256, '1'));
-
-  librbd::RBD::AioCompletion *write_comp =
-    new librbd::RBD::AioCompletion(NULL, NULL);
-  ASSERT_EQ(0, image.aio_write(0, bl.length(), bl, write_comp));
-  ASSERT_EQ(0, write_comp->wait_for_complete());
-  write_comp->release();
-
-  librbd::RBD::AioCompletion *discard_comp =
-    new librbd::RBD::AioCompletion(NULL, NULL);
-  ASSERT_EQ(0, image.aio_discard(0, 256, discard_comp));
-  ASSERT_EQ(0, discard_comp->wait_for_complete());
-  discard_comp->release();
-
-  librbd::RBD::AioCompletion *read_comp =
-    new librbd::RBD::AioCompletion(NULL, NULL);
-  bufferlist read_bl;
-  image.aio_read(0, bl.length(), read_bl, read_comp);
-  ASSERT_EQ(0, read_comp->wait_for_complete());
-  ASSERT_EQ(bl.length(), read_comp->get_return_value());
-  ASSERT_TRUE(read_bl.is_zero());
-  read_comp->release();
-}
-
-TEST_F(TestLibRBD, DefaultFeatures) {
-  std::string orig_default_features;
-  ASSERT_EQ(0, _rados.conf_get("rbd_default_features", orig_default_features));
-  BOOST_SCOPE_EXIT_ALL(orig_default_features) {
-    ASSERT_EQ(0, _rados.conf_set("rbd_default_features",
-                                 orig_default_features.c_str()));
-  };
-
-  std::list<std::pair<std::string, std::string> > feature_names_to_bitmask = {
-    {"", orig_default_features},
-    {"layering", "1"},
-    {"layering, exclusive-lock", "5"},
-    {"exclusive-lock,journaling", "68"},
-    {"125", "125"}
-  };
-
-  for (auto &pair : feature_names_to_bitmask) {
-    ASSERT_EQ(0, _rados.conf_set("rbd_default_features", pair.first.c_str()));
-    std::string features;
-    ASSERT_EQ(0, _rados.conf_get("rbd_default_features", features));
-    ASSERT_EQ(pair.second, features);
-  }
-}
-
-TEST_F(TestLibRBD, TestTrashMoveAndPurge) {
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-
-  uint64_t size = 1 << 18;
-  int order = 12;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image;
-  ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), nullptr));
-  uint8_t old_format;
-  ASSERT_EQ(0, image.old_format(&old_format));
-
-  if (old_format) {
-    ASSERT_EQ(-EOPNOTSUPP, rbd.trash_move(ioctx, name.c_str(), 0));
-    image.close();
-    return;
-  }
-  std::string image_id;
-  ASSERT_EQ(0, image.get_id(&image_id));
-  image.close();
-
-  ASSERT_EQ(0, rbd.trash_move(ioctx, name.c_str(), 0));
-
-  std::vector<std::string> images;
-  ASSERT_EQ(0, rbd.list(ioctx, images));
-  for (const auto& image : images) {
-    ASSERT_TRUE(image != name);
-  }
-
-  librbd::trash_image_info_t info;
-  ASSERT_EQ(-ENOENT, rbd.trash_get(ioctx, "dummy image id", &info));
-  ASSERT_EQ(0, rbd.trash_get(ioctx, image_id.c_str(), &info));
-  ASSERT_EQ(image_id, info.id);
-
-  std::vector<librbd::trash_image_info_t> entries;
-  ASSERT_EQ(0, rbd.trash_list(ioctx, entries));
-  ASSERT_FALSE(entries.empty());
-  ASSERT_EQ(entries.begin()->id, image_id);
-
-  entries.clear();
-  PrintProgress pp;
-  ASSERT_EQ(0, rbd.trash_remove_with_progress(ioctx, image_id.c_str(),
-                                              false, pp));
-  ASSERT_EQ(0, rbd.trash_list(ioctx, entries));
-  ASSERT_TRUE(entries.empty());
-}
-
-TEST_F(TestLibRBD, TestTrashMoveAndPurgeNonExpiredDelay) {
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-
-  uint64_t size = 1 << 18;
-  int order = 12;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image;
-  ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), nullptr));
-  uint8_t old_format;
-  ASSERT_EQ(0, image.old_format(&old_format));
-
-  if (old_format) {
-    ASSERT_EQ(-EOPNOTSUPP, rbd.trash_move(ioctx, name.c_str(), 0));
-    image.close();
-    return;
-  }
-  std::string image_id;
-  ASSERT_EQ(0, image.get_id(&image_id));
-  image.close();
-
-  ASSERT_EQ(0, rbd.trash_move(ioctx, name.c_str(), 100));
-
-  PrintProgress pp;
-  ASSERT_EQ(-EPERM, rbd.trash_remove_with_progress(ioctx, image_id.c_str(),
-                                                   false, pp));
-
-  PrintProgress pp2;
-  ASSERT_EQ(0, rbd.trash_remove_with_progress(ioctx, image_id.c_str(),
-                                              true, pp2));
-}
-
-TEST_F(TestLibRBD, TestTrashMoveAndRestore) {
-  librados::IoCtx ioctx;
-  ASSERT_EQ(0, _rados.ioctx_create(m_pool_name.c_str(), ioctx));
-
-  librbd::RBD rbd;
-  std::string name = get_temp_image_name();
-
-  uint64_t size = 1 << 18;
-  int order = 12;
-  ASSERT_EQ(0, create_image_pp(rbd, ioctx, name.c_str(), size, &order));
-
-  librbd::Image image;
-  ASSERT_EQ(0, rbd.open(ioctx, image, name.c_str(), nullptr));
-  uint8_t old_format;
-  ASSERT_EQ(0, image.old_format(&old_format));
-
-  if (old_format) {
-    ASSERT_EQ(-EOPNOTSUPP, rbd.trash_move(ioctx, name.c_str(), 0));
-    image.close();
-    return;
-  }
-  std::string image_id;
-  ASSERT_EQ(0, image.get_id(&image_id));
-  image.close();
-
-  ASSERT_EQ(0, rbd.trash_move(ioctx, name.c_str(), 10));
-
-  std::vector<std::string> images;
-  ASSERT_EQ(0, rbd.list(ioctx, images));
-  for (const auto& image : images) {
-    ASSERT_TRUE(image != name);
-  }
-
-  std::vector<librbd::trash_image_info_t> entries;
-  ASSERT_EQ(0, rbd.trash_list(ioctx, entries));
-  ASSERT_FALSE(entries.empty());
-  ASSERT_EQ(entries.begin()->id, image_id);
-
-  images.clear();
-  ASSERT_EQ(0, rbd.trash_restore(ioctx, image_id.c_str(), ""));
-  ASSERT_EQ(0, rbd.list(ioctx, images));
-  ASSERT_FALSE(images.empty());
-  bool found = false;
-  for (const auto& image : images) {
-    if (image == name) {
-      found = true;
-      break;
-    }
-  }
-  ASSERT_TRUE(found);
-}
-
-// poorman's assert()
-namespace ceph {
-  void __ceph_assert_fail(const char *assertion, const char *file, int line,
-                         const char *func) {
-    assert(false);
-  }
-}