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-rw-r--r--src/librbd/managed_lock/BreakRequest.h120
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diff --git a/src/librbd/managed_lock/BreakRequest.h b/src/librbd/managed_lock/BreakRequest.h
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+++ b/src/librbd/managed_lock/BreakRequest.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_MANAGED_LOCK_BREAK_REQUEST_H
+#define CEPH_LIBRBD_MANAGED_LOCK_BREAK_REQUEST_H
+
+#include "include/int_types.h"
+#include "include/buffer_fwd.h"
+#include "include/rados/librados_fwd.hpp"
+#include "msg/msg_types.h"
+#include <list>
+#include <string>
+#include <boost/optional.hpp>
+#include "librbd/managed_lock/Types.h"
+
+class Context;
+class ContextWQ;
+class obj_watch_t;
+
+namespace librbd {
+
+class AsioEngine;
+class ImageCtx;
+template <typename> class Journal;
+namespace asio { struct ContextWQ; }
+
+namespace managed_lock {
+
+template <typename ImageCtxT = ImageCtx>
+class BreakRequest {
+public:
+ static BreakRequest* create(librados::IoCtx& ioctx,
+ AsioEngine& asio_engine,
+ const std::string& oid, const Locker &locker,
+ bool exclusive, bool blocklist_locker,
+ uint32_t blocklist_expire_seconds,
+ bool force_break_lock, Context *on_finish) {
+ return new BreakRequest(ioctx, asio_engine, oid, locker, exclusive,
+ blocklist_locker, blocklist_expire_seconds,
+ force_break_lock, on_finish);
+ }
+
+ void send();
+
+private:
+ /**
+ * @verbatim
+ *
+ * <start>
+ * |
+ * v
+ * GET_WATCHERS
+ * |
+ * v
+ * GET_LOCKER
+ * |
+ * v
+ * BLOCKLIST (skip if disabled)
+ * |
+ * v
+ * WAIT_FOR_OSD_MAP
+ * |
+ * v
+ * BREAK_LOCK
+ * |
+ * v
+ * <finish>
+ *
+ * @endvertbatim
+ */
+
+ librados::IoCtx &m_ioctx;
+ CephContext *m_cct;
+ AsioEngine& m_asio_engine;
+ std::string m_oid;
+ Locker m_locker;
+ bool m_exclusive;
+ bool m_blocklist_locker;
+ uint32_t m_blocklist_expire_seconds;
+ bool m_force_break_lock;
+ Context *m_on_finish;
+
+ bufferlist m_out_bl;
+
+ std::list<obj_watch_t> m_watchers;
+ int m_watchers_ret_val;
+
+ Locker m_refreshed_locker;
+
+ BreakRequest(librados::IoCtx& ioctx, AsioEngine& asio_engine,
+ const std::string& oid, const Locker &locker,
+ bool exclusive, bool blocklist_locker,
+ uint32_t blocklist_expire_seconds, bool force_break_lock,
+ Context *on_finish);
+
+ void send_get_watchers();
+ void handle_get_watchers(int r);
+
+ void send_get_locker();
+ void handle_get_locker(int r);
+
+ void send_blocklist();
+ void handle_blocklist(int r);
+
+ void wait_for_osd_map();
+ void handle_wait_for_osd_map(int r);
+
+ void send_break_lock();
+ void handle_break_lock(int r);
+
+ void finish(int r);
+
+};
+
+} // namespace managed_lock
+} // namespace librbd
+
+extern template class librbd::managed_lock::BreakRequest<librbd::ImageCtx>;
+
+#endif // CEPH_LIBRBD_MANAGED_LOCK_BREAK_REQUEST_H