initial code repo
[stor4nfv.git] / src / ceph / src / test / rbd_mirror / test_PoolWatcher.cc
diff --git a/src/ceph/src/test/rbd_mirror/test_PoolWatcher.cc b/src/ceph/src/test/rbd_mirror/test_PoolWatcher.cc
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "include/rados/librados.hpp"
+#include "include/rbd/librbd.hpp"
+#include "include/stringify.h"
+#include "test/rbd_mirror/test_fixture.h"
+#include "cls/rbd/cls_rbd_types.h"
+#include "cls/rbd/cls_rbd_client.h"
+#include "include/rbd_types.h"
+#include "librbd/internal.h"
+#include "librbd/ImageCtx.h"
+#include "librbd/ImageState.h"
+#include "librbd/Operations.h"
+#include "librbd/Utils.h"
+#include "librbd/api/Mirror.h"
+#include "common/Cond.h"
+#include "common/errno.h"
+#include "common/Mutex.h"
+#include "tools/rbd_mirror/PoolWatcher.h"
+#include "tools/rbd_mirror/Threads.h"
+#include "tools/rbd_mirror/types.h"
+#include "test/librados/test.h"
+#include "gtest/gtest.h"
+#include <boost/scope_exit.hpp>
+#include <iostream>
+#include <map>
+#include <memory>
+#include <set>
+#include <vector>
+
+using rbd::mirror::ImageId;
+using rbd::mirror::ImageIds;
+using rbd::mirror::PoolWatcher;
+using rbd::mirror::peer_t;
+using rbd::mirror::RadosRef;
+using std::map;
+using std::set;
+using std::string;
+
+void register_test_pool_watcher() {
+}
+
+class TestPoolWatcher : public ::rbd::mirror::TestFixture {
+public:
+
+  TestPoolWatcher()
+    : m_lock("TestPoolWatcherLock"), m_pool_watcher_listener(this),
+      m_image_number(0), m_snap_number(0)
+  {
+    m_cluster = std::make_shared<librados::Rados>();
+    EXPECT_EQ("", connect_cluster_pp(*m_cluster));
+  }
+
+  void TearDown() override {
+    if (m_pool_watcher) {
+      C_SaferCond ctx;
+      m_pool_watcher->shut_down(&ctx);
+      EXPECT_EQ(0, ctx.wait());
+    }
+
+    m_cluster->wait_for_latest_osdmap();
+    for (auto& pool : m_pools) {
+      EXPECT_EQ(0, m_cluster->pool_delete(pool.c_str()));
+    }
+
+    TestFixture::TearDown();
+  }
+
+  struct PoolWatcherListener : public PoolWatcher<>::Listener {
+    TestPoolWatcher *test;
+    Cond cond;
+    ImageIds image_ids;
+
+    PoolWatcherListener(TestPoolWatcher *test) : test(test) {
+    }
+
+    void handle_update(const std::string &mirror_uuid,
+                       ImageIds &&added_image_ids,
+                       ImageIds &&removed_image_ids) override {
+      Mutex::Locker locker(test->m_lock);
+      for (auto &image_id : removed_image_ids) {
+        image_ids.erase(image_id);
+      }
+      image_ids.insert(added_image_ids.begin(), added_image_ids.end());
+      cond.Signal();
+    }
+  };
+
+  void create_pool(bool enable_mirroring, const peer_t &peer, string *name=nullptr) {
+    string pool_name = get_temp_pool_name("test-rbd-mirror-");
+    ASSERT_EQ(0, m_cluster->pool_create(pool_name.c_str()));
+
+    int64_t pool_id = m_cluster->pool_lookup(pool_name.c_str());
+    ASSERT_GE(pool_id, 0);
+    m_pools.insert(pool_name);
+
+    librados::IoCtx ioctx;
+    ASSERT_EQ(0, m_cluster->ioctx_create2(pool_id, ioctx));
+    ioctx.application_enable("rbd", true);
+
+    m_pool_watcher.reset(new PoolWatcher<>(m_threads, ioctx,
+                                           m_pool_watcher_listener));
+
+    if (enable_mirroring) {
+      ASSERT_EQ(0, librbd::api::Mirror<>::mode_set(ioctx,
+                                                   RBD_MIRROR_MODE_POOL));
+      std::string uuid;
+      ASSERT_EQ(0, librbd::api::Mirror<>::peer_add(ioctx, &uuid,
+                                                   peer.cluster_name,
+                                                   peer.client_name));
+    }
+    if (name != nullptr) {
+      *name = pool_name;
+    }
+
+    m_pool_watcher->init();
+  }
+
+  string get_image_id(librados::IoCtx *ioctx, const string &image_name) {
+    string obj = librbd::util::id_obj_name(image_name);
+    string id;
+    EXPECT_EQ(0, librbd::cls_client::get_id(ioctx, obj, &id));
+    return id;
+  }
+
+  void create_image(const string &pool_name, bool mirrored=true,
+                   string *image_name=nullptr) {
+    uint64_t features = librbd::util::get_rbd_default_features(g_ceph_context);
+    string name = "image" + stringify(++m_image_number);
+    if (mirrored) {
+      features |= RBD_FEATURE_EXCLUSIVE_LOCK | RBD_FEATURE_JOURNALING;
+    }
+
+    librados::IoCtx ioctx;
+    ASSERT_EQ(0, m_cluster->ioctx_create(pool_name.c_str(), ioctx));
+    int order = 0;
+    ASSERT_EQ(0, librbd::create(ioctx, name.c_str(), 1 << 22, false,
+                               features, &order, 0, 0));
+    if (mirrored) {
+      librbd::Image image;
+      librbd::RBD rbd;
+      rbd.open(ioctx, image, name.c_str());
+      image.mirror_image_enable();
+
+      librbd::mirror_image_info_t mirror_image_info;
+      ASSERT_EQ(0, image.mirror_image_get_info(&mirror_image_info,
+                                               sizeof(mirror_image_info)));
+      image.close();
+
+      m_mirrored_images.insert(ImageId(
+        mirror_image_info.global_id, get_image_id(&ioctx, name)));
+    }
+    if (image_name != nullptr)
+      *image_name = name;
+  }
+
+  void clone_image(const string &parent_pool_name,
+                  const string &parent_image_name,
+                  const string &clone_pool_name,
+                  bool mirrored=true,
+                  string *image_name=nullptr) {
+    librados::IoCtx pioctx, cioctx;
+    ASSERT_EQ(0, m_cluster->ioctx_create(parent_pool_name.c_str(), pioctx));
+    ASSERT_EQ(0, m_cluster->ioctx_create(clone_pool_name.c_str(), cioctx));
+
+    string snap_name = "snap" + stringify(++m_snap_number);
+    {
+      librbd::ImageCtx *ictx = new librbd::ImageCtx(parent_image_name.c_str(),
+                                                   "", "", pioctx, false);
+      ictx->state->open(false);
+      EXPECT_EQ(0, ictx->operations->snap_create(cls::rbd::UserSnapshotNamespace(),
+                                                snap_name.c_str()));
+      EXPECT_EQ(0, ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(),
+                                                 snap_name.c_str()));
+      ictx->state->close();
+    }
+
+    uint64_t features = librbd::util::get_rbd_default_features(g_ceph_context);
+    string name = "clone" + stringify(++m_image_number);
+    if (mirrored) {
+      features |= RBD_FEATURE_EXCLUSIVE_LOCK | RBD_FEATURE_JOURNALING;
+    }
+    int order = 0;
+    librbd::clone(pioctx, parent_image_name.c_str(), snap_name.c_str(),
+                 cioctx, name.c_str(), features, &order, 0, 0);
+    if (mirrored) {
+      librbd::Image image;
+      librbd::RBD rbd;
+      rbd.open(cioctx, image, name.c_str());
+      image.mirror_image_enable();
+
+      librbd::mirror_image_info_t mirror_image_info;
+      ASSERT_EQ(0, image.mirror_image_get_info(&mirror_image_info,
+                                               sizeof(mirror_image_info)));
+      image.close();
+
+      m_mirrored_images.insert(ImageId(
+        mirror_image_info.global_id, get_image_id(&cioctx, name)));
+    }
+    if (image_name != nullptr)
+      *image_name = name;
+  }
+
+  void check_images() {
+    Mutex::Locker l(m_lock);
+    while (m_mirrored_images != m_pool_watcher_listener.image_ids) {
+      if (m_pool_watcher_listener.cond.WaitInterval(
+            m_lock, utime_t(10, 0)) != 0) {
+        break;
+      }
+    }
+
+    ASSERT_EQ(m_mirrored_images, m_pool_watcher_listener.image_ids);
+  }
+
+  Mutex m_lock;
+  RadosRef m_cluster;
+  PoolWatcherListener m_pool_watcher_listener;
+  unique_ptr<PoolWatcher<> > m_pool_watcher;
+
+  set<string> m_pools;
+  ImageIds m_mirrored_images;
+
+  uint64_t m_image_number;
+  uint64_t m_snap_number;
+};
+
+TEST_F(TestPoolWatcher, EmptyPool) {
+  string uuid1 = "00000000-0000-0000-0000-000000000001";
+  peer_t site1(uuid1, "site1", "mirror1");
+  create_pool(true, site1);
+  check_images();
+}
+
+TEST_F(TestPoolWatcher, ReplicatedPools) {
+  string uuid1 = "00000000-0000-0000-0000-000000000001";
+  peer_t site1(uuid1, "site1", "mirror1");
+  string first_pool, local_pool, last_pool;
+  create_pool(true, site1, &first_pool);
+  check_images();
+  create_image(first_pool);
+  check_images();
+  string parent_image, parent_image2;
+  create_image(first_pool, true, &parent_image);
+  check_images();
+  clone_image(first_pool, parent_image, first_pool);
+  check_images();
+  clone_image(first_pool, parent_image, first_pool, true, &parent_image2);
+  check_images();
+  create_image(first_pool, false);
+  check_images();
+}