ceph/src/common/AsyncOpTracker.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3
   4 #ifndef CEPH_ASYNC_OP_TRACKER_H
   5 #define CEPH_ASYNC_OP_TRACKER_H
   6
   7 #include "include/int_types.h"
   8 #include "common/Mutex.h"
   9
  10 struct Context;
  11
  12 class AsyncOpTracker {
  13 public:
  14   AsyncOpTracker();
  15   ~AsyncOpTracker();
  16
  17   void start_op();
  18   void finish_op();
  19
  20   void wait_for_ops(Context *on_finish);
  21
  22   bool empty();
  23
  24 private:
  25   Mutex m_lock;
  26   uint32_t m_pending_ops = 0;
  27   Context *m_on_finish = nullptr;
  28
  29 };
  30
  31 #endif // CEPH_ASYNC_OP_TRACKER_H