remove ceph code

[stor4nfv.git] / src / ceph / src / librbd / ExclusiveLock.h

diff --git a/src/ceph/src/librbd/ExclusiveLock.h b/src/ceph/src/librbd/ExclusiveLock.h
deleted file mode 100644 (file)
index 0aaad09..0000000
--- a/src/ceph/src/librbd/ExclusiveLock.h
+++ /dev/null
@@ -1,105 +0,0 @@
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-
-#ifndef CEPH_LIBRBD_EXCLUSIVE_LOCK_H
-#define CEPH_LIBRBD_EXCLUSIVE_LOCK_H
-
-#include "librbd/ManagedLock.h"
-#include "common/AsyncOpTracker.h"
-
-namespace librbd {
-
-template <typename ImageCtxT = ImageCtx>
-class ExclusiveLock : public ManagedLock<ImageCtxT> {
-public:
-  static ExclusiveLock *create(ImageCtxT &image_ctx) {
-    return new ExclusiveLock<ImageCtxT>(image_ctx);
-  }
-
-  ExclusiveLock(ImageCtxT &image_ctx);
-
-  bool accept_requests(int *ret_val = nullptr) const;
-  bool accept_ops() const;
-
-  void block_requests(int r);
-  void unblock_requests();
-
-  void init(uint64_t features, Context *on_init);
-  void shut_down(Context *on_shutdown);
-
-  void handle_peer_notification(int r);
-
-  Context *start_op();
-
-protected:
-  void shutdown_handler(int r, Context *on_finish) override;
-  void pre_acquire_lock_handler(Context *on_finish) override;
-  void post_acquire_lock_handler(int r, Context *on_finish) override;
-  void pre_release_lock_handler(bool shutting_down,
-                                Context *on_finish) override;
-  void post_release_lock_handler(bool shutting_down, int r,
-                                 Context *on_finish) override;
-  void post_reacquire_lock_handler(int r, Context *on_finish) override;
-
-private:
-
-  /**
-   * @verbatim
-   *
-   * <start>                              * * > WAITING_FOR_REGISTER --------\
-   *    |                                 * (watch not registered)           |
-   *    |                                 *                                  |
-   *    |                                 * * > WAITING_FOR_PEER ------------\
-   *    |                                 * (request_lock busy)              |
-   *    |                                 *                                  |
-   *    |                                 * * * * * * * * * * * * * *        |
-   *    |                                                           *        |
-   *    v            (init)            (try_lock/request_lock)      *        |
-   * UNINITIALIZED  -------> UNLOCKED ------------------------> ACQUIRING <--/
-   *                            ^                                   |
-   *                            |                                   v
-   *                         RELEASING                        POST_ACQUIRING
-   *                            |                                   |
-   *                            |                                   |
-   *                            |          (release_lock)           v
-   *                      PRE_RELEASING <------------------------ LOCKED
-   *
-   * <LOCKED state>
-   *    |
-   *    v
-   * REACQUIRING -------------------------------------> <finish>
-   *    .                                                 ^
-   *    .                                                 |
-   *    . . . > <RELEASE action> ---> <ACQUIRE action> ---/
-   *
-   * <UNLOCKED/LOCKED states>
-   *    |
-   *    |
-   *    v
-   * PRE_SHUTTING_DOWN ---> SHUTTING_DOWN ---> SHUTDOWN ---> <finish>
-   *
-   * @endverbatim
-   */
-
-  struct C_InitComplete;
-
-  ImageCtxT& m_image_ctx;
-  Context *m_pre_post_callback = nullptr;
-
-  AsyncOpTracker m_async_op_tracker;
-
-  uint32_t m_request_blocked_count = 0;
-  int m_request_blocked_ret_val = 0;
-
-  int m_acquire_lock_peer_ret_val = 0;
-
-  bool accept_ops(const Mutex &lock) const;
-
-  void handle_init_complete(uint64_t features);
-  void handle_post_acquiring_lock(int r);
-  void handle_post_acquired_lock(int r);
-};
-
-} // namespace librbd
-
-#endif // CEPH_LIBRBD_EXCLUSIVE_LOCK_H