Adding upstream version 18.2.2.upstream/18.2.2

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

1 files changed, 60 insertions, 0 deletions

diff --git a/src/tools/cephfs_mirror/watcher/RewatchRequest.h b/src/tools/cephfs_mirror/watcher/RewatchRequest.h
new file mode 100644
index 000000000..453fcb219
--- /dev/null
+++ b/src/tools/cephfs_mirror/watcher/RewatchRequest.h
@@ -0,0 +1,60 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPHFS_MIRROR_WATCHER_REWATCH_REQUEST_H
+#define CEPHFS_MIRROR_WATCHER_REWATCH_REQUEST_H
+
+#include "common/ceph_mutex.h"
+#include "include/int_types.h"
+#include "include/rados/librados.hpp"
+
+struct Context;
+
+namespace cephfs {
+namespace mirror {
+namespace watcher {
+
+// Rewatch an existing watch -- the watch can be in an operatioal
+// or error state.
+
+class RewatchRequest {
+public:
+
+  static RewatchRequest *create(librados::IoCtx &ioctx, const std::string &oid,
+                                ceph::shared_mutex &watch_lock,
+                                librados::WatchCtx2 *watch_ctx,
+                                uint64_t *watch_handle, Context *on_finish) {
+    return new RewatchRequest(ioctx, oid, watch_lock, watch_ctx, watch_handle,
+                              on_finish);
+  }
+
+  RewatchRequest(librados::IoCtx &ioctx, const std::string &oid,
+                 ceph::shared_mutex &watch_lock, librados::WatchCtx2 *watch_ctx,
+                 uint64_t *watch_handle, Context *on_finish);
+
+  void send();
+
+private:
+  librados::IoCtx& m_ioctx;
+  std::string m_oid;
+  ceph::shared_mutex &m_lock;
+  librados::WatchCtx2 *m_watch_ctx;
+  uint64_t *m_watch_handle;
+  Context *m_on_finish;
+
+  uint64_t m_rewatch_handle = 0;
+
+  void unwatch();
+  void handle_unwatch(int r);
+
+  void rewatch();
+  void handle_rewatch(int r);
+
+  void finish(int r);
+};
+
+} // namespace watcher
+} // namespace mirror
+} // namespace cephfs
+
+#endif // CEPHFS_MIRROR_WATCHER_REWATCH_REQUEST_H