ceph/src/librbd/journal/RemoveRequest.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_LIBRBD_JOURNAL_REMOVE_REQUEST_H
   5 #define CEPH_LIBRBD_JOURNAL_REMOVE_REQUEST_H
   6
   7 #include "include/int_types.h"
   8 #include "include/buffer.h"
   9 #include "include/rados/librados.hpp"
  10 #include "include/rbd/librbd.hpp"
  11 #include "common/Mutex.h"
  12 #include "librbd/ImageCtx.h"
  13 #include "journal/Journaler.h"
  14 #include "librbd/journal/TypeTraits.h"
  15
  16 using librados::IoCtx;
  17 using journal::Journaler;
  18
  19 class Context;
  20 class ContextWQ;
  21 class SafeTimer;
  22
  23 namespace journal {
  24   class Journaler;
  25 }
  26
  27 namespace librbd {
  28
  29 class ImageCtx;
  30
  31 namespace journal {
  32
  33 template<typename ImageCtxT = ImageCtx>
  34 class RemoveRequest {
  35 public:
  36   static RemoveRequest *create(IoCtx &ioctx, const std::string &image_id,
  37                                       const std::string &client_id,
  38                                       ContextWQ *op_work_queue, Context *on_finish) {
  39     return new RemoveRequest(ioctx, image_id, client_id,
  40                                     op_work_queue, on_finish);
  41   }
  42
  43   void send();
  44
  45 private:
  46   typedef typename TypeTraits<ImageCtxT>::Journaler Journaler;
  47
  48   RemoveRequest(IoCtx &ioctx, const std::string &image_id,
  49                        const std::string &client_id,
  50                        ContextWQ *op_work_queue, Context *on_finish);
  51
  52   IoCtx &m_ioctx;
  53   std::string m_image_id;
  54   std::string m_image_client_id;
  55   ContextWQ *m_op_work_queue;
  56   Context *m_on_finish;
  57
  58   CephContext *m_cct;
  59   Journaler *m_journaler;
  60   SafeTimer *m_timer;
  61   Mutex *m_timer_lock;
  62   int m_r_saved;
  63
  64   void stat_journal();
  65   Context *handle_stat_journal(int *result);
  66
  67   void init_journaler();
  68   Context *handle_init_journaler(int *result);
  69
  70   void remove_journal();
  71   Context *handle_remove_journal(int *result);
  72
  73   void shut_down_journaler(int r);
  74   Context *handle_journaler_shutdown(int *result);
  75 };
  76
  77 } // namespace journal
  78 } // namespace librbd
  79
  80 extern template class librbd::journal::RemoveRequest<librbd::ImageCtx>;
  81
  82 #endif // CEPH_LIBRBD_JOURNAL_REMOVE_REQUEST_H