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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 18:24:20 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 18:24:20 +0000
commit483eb2f56657e8e7f419ab1a4fab8dce9ade8609 (patch)
treee5d88d25d870d5dedacb6bbdbe2a966086a0a5cf /src/librbd/ConfigWatcher.h
parentInitial commit. (diff)
downloadceph-483eb2f56657e8e7f419ab1a4fab8dce9ade8609.tar.xz
ceph-483eb2f56657e8e7f419ab1a4fab8dce9ade8609.zip
Adding upstream version 14.2.21.upstream/14.2.21upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/librbd/ConfigWatcher.h')
-rw-r--r--src/librbd/ConfigWatcher.h47
1 files changed, 47 insertions, 0 deletions
diff --git a/src/librbd/ConfigWatcher.h b/src/librbd/ConfigWatcher.h
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_LIBRBD_CONFIG_WATCHER_H
+#define CEPH_LIBRBD_CONFIG_WATCHER_H
+
+#include <set>
+#include <string>
+
+struct Context;
+
+namespace librbd {
+
+struct ImageCtx;
+
+template <typename ImageCtxT>
+class ConfigWatcher {
+public:
+ static ConfigWatcher* create(ImageCtxT& image_ctx) {
+ return new ConfigWatcher(image_ctx);
+ }
+
+ ConfigWatcher(ImageCtxT& image_ctx);
+ ~ConfigWatcher();
+
+ ConfigWatcher(const ConfigWatcher&) = delete;
+ ConfigWatcher& operator=(const ConfigWatcher&) = delete;
+
+ void init();
+ void shut_down();
+
+private:
+ struct Observer;
+
+ ImageCtxT& m_image_ctx;
+
+ Observer* m_observer = nullptr;
+
+ void handle_global_config_change(std::set<std::string> changed);
+
+};
+
+} // namespace librbd
+
+extern template class librbd::ConfigWatcher<librbd::ImageCtx>;
+
+#endif // CEPH_LIBRBD_CONFIG_WATCHER_H