initial code repo

[stor4nfv.git] / src / ceph / src / test / librbd / test_support.cc

diff --git a/src/ceph/src/test/librbd/test_support.cc b/src/ceph/src/test/librbd/test_support.cc
new file mode 100644 (file)
index 0000000..55ebe03
--- /dev/null
+++ b/src/ceph/src/test/librbd/test_support.cc
@@ -0,0 +1,120 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+#include "test/librbd/test_support.h"
+#include "include/rbd_types.h"
+#include <sstream>
+
+bool get_features(uint64_t *features) {
+  const char *c = getenv("RBD_FEATURES");
+  if (c == NULL) {
+    return false;
+  }
+
+  std::stringstream ss(c);
+  if (!(ss >> *features)) {
+    return false;
+  }
+  return true;
+}
+
+bool is_feature_enabled(uint64_t feature) {
+  uint64_t features;
+  return (get_features(&features) && (features & feature) == feature);
+}
+
+int create_image_full_pp(librbd::RBD &rbd, librados::IoCtx &ioctx,
+                         const std::string &name, uint64_t size,
+                         uint64_t features, bool old_format, int *order)
+{
+  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.c_str(), 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.c_str(), size, features, order, stripe_unit,
+                       IMAGE_STRIPE_COUNT);
+  } else {
+    return rbd.create2(ioctx, name.c_str(), size, features, order);
+  }
+}
+
+int create_image_pp(librbd::RBD &rbd, librados::IoCtx &ioctx,
+                    const std::string &name, uint64_t size) {
+  int order = 0;
+  uint64_t features = 0;
+  if (!get_features(&features)) {
+    // ensure old-format tests actually use the 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.c_str(), size, &order);
+  } else {
+    return rbd.create2(ioctx, name.c_str(), size, features, &order);
+  }
+}
+
+int clone_image_pp(librbd::RBD &rbd, librbd::Image &p_image, librados::IoCtx &p_ioctx,
+                   const char *p_name, const char *p_snap_name, librados::IoCtx &c_ioctx,
+                   const char *c_name, uint64_t features)
+{
+  uint64_t stripe_unit = p_image.get_stripe_unit();
+  uint64_t stripe_count = p_image.get_stripe_count();
+
+  librbd::image_info_t p_info;
+  int r = p_image.stat(p_info, sizeof(p_info));
+  if (r < 0) {
+    return r;
+  }
+
+  int c_order = p_info.order;
+  return rbd.clone2(p_ioctx, p_name, p_snap_name, c_ioctx, c_name,
+                    features, &c_order, stripe_unit, stripe_count);
+}
+
+int get_image_id(librbd::Image &image, std::string *image_id)
+{
+  int r = image.get_id(image_id);
+  if (r < 0) {
+    return r;
+  }
+  return 0;
+}
+
+int create_image_data_pool(librados::Rados &rados, std::string &data_pool, bool *created) {
+  std::string pool;
+  int r = rados.conf_get("rbd_default_data_pool", pool);
+  if (r != 0) {
+    return r;
+  } else if (pool.empty()) {
+    return 0;
+  }
+
+  r = rados.pool_create(pool.c_str());
+  if ((r == 0) || (r == -EEXIST)) {
+    data_pool = pool;
+    *created = (r == 0);
+    return 0;
+  }
+
+  librados::IoCtx ioctx;
+  r = rados.ioctx_create(pool.c_str(), ioctx);
+  if (r < 0) {
+    return r;
+  }
+  ioctx.application_enable("rbd", true);
+
+  return r;
+}