Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 83 insertions, 0 deletions

diff --git a/src/tools/rbd_mirror/PoolMetaCache.cc b/src/tools/rbd_mirror/PoolMetaCache.cc
new file mode 100644
index 000000000..261802a55
--- /dev/null
+++ b/src/tools/rbd_mirror/PoolMetaCache.cc
@@ -0,0 +1,83 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "common/debug.h"
+#include "common/dout.h"
+#include "tools/rbd_mirror/PoolMetaCache.h"
+#include <shared_mutex>
+
+#define dout_context g_ceph_context
+#define dout_subsys ceph_subsys_rbd_mirror
+#undef dout_prefix
+#define dout_prefix *_dout << "rbd::mirror::PoolMetaCache: " \
+                           << this << " " << __func__ << ": "
+
+namespace rbd {
+namespace mirror {
+
+int PoolMetaCache::get_local_pool_meta(
+    int64_t pool_id,
+    LocalPoolMeta* local_pool_meta) const {
+  dout(15) << "pool_id=" << pool_id << dendl;
+
+  std::shared_lock locker{m_lock};
+  auto it = m_local_pool_metas.find(pool_id);
+  if (it == m_local_pool_metas.end()) {
+    return -ENOENT;
+  }
+
+  *local_pool_meta = it->second;
+  return 0;
+}
+
+void PoolMetaCache::set_local_pool_meta(
+    int64_t pool_id,
+    const LocalPoolMeta& local_pool_meta) {
+  dout(15) << "pool_id=" << pool_id << ", "
+           << "local_pool_meta=" << local_pool_meta << dendl;
+
+  std::unique_lock locker(m_lock);
+  m_local_pool_metas[pool_id] = local_pool_meta;
+}
+
+void PoolMetaCache::remove_local_pool_meta(int64_t pool_id) {
+  dout(15) << "pool_id=" << pool_id << dendl;
+
+  std::unique_lock locker(m_lock);
+  m_local_pool_metas.erase(pool_id);
+}
+
+int PoolMetaCache::get_remote_pool_meta(
+    int64_t pool_id,
+    RemotePoolMeta* remote_pool_meta) const {
+  dout(15) << "pool_id=" << pool_id << dendl;
+
+  std::shared_lock locker{m_lock};
+  auto it = m_remote_pool_metas.find(pool_id);
+  if (it == m_remote_pool_metas.end()) {
+    return -ENOENT;
+  }
+
+  *remote_pool_meta = it->second;
+  return 0;
+}
+
+void PoolMetaCache::set_remote_pool_meta(
+    int64_t pool_id,
+    const RemotePoolMeta& remote_pool_meta) {
+  dout(15) << "pool_id=" << pool_id << ", "
+           << "remote_pool_meta=" << remote_pool_meta << dendl;
+
+  std::unique_lock locker(m_lock);
+  m_remote_pool_metas[pool_id] = remote_pool_meta;
+}
+
+void PoolMetaCache::remove_remote_pool_meta(int64_t pool_id) {
+  dout(15) << "pool_id=" << pool_id << dendl;
+
+  std::unique_lock locker(m_lock);
+  m_remote_pool_metas.erase(pool_id);
+}
+
+} // namespace mirror
+} // namespace rbd