1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 #include "common/dout.h"
5 #include "common/errno.h"
6 #include "common/Timer.h"
7 #include "common/WorkQueue.h"
8 #include "journal/Settings.h"
9 #include "include/assert.h"
10 #include "librbd/Utils.h"
11 #include "librbd/journal/RemoveRequest.h"
13 #define dout_subsys ceph_subsys_rbd
15 #define dout_prefix *_dout << "librbd::Journal::RemoveRequest: "
19 using util::create_context_callback;
24 RemoveRequest<I>::RemoveRequest(IoCtx &ioctx, const std::string &image_id,
25 const std::string &client_id,
26 ContextWQ *op_work_queue,
28 : m_ioctx(ioctx), m_image_id(image_id), m_image_client_id(client_id),
29 m_op_work_queue(op_work_queue), m_on_finish(on_finish) {
30 m_cct = reinterpret_cast<CephContext *>(m_ioctx.cct());
34 void RemoveRequest<I>::send() {
35 ldout(m_cct, 20) << this << " " << __func__ << dendl;
41 void RemoveRequest<I>::stat_journal() {
42 ldout(m_cct, 20) << this << " " << __func__ << dendl;
44 ImageCtx::get_timer_instance(m_cct, &m_timer, &m_timer_lock);
45 m_journaler = new Journaler(m_op_work_queue, m_timer, m_timer_lock,
46 m_ioctx, m_image_id, m_image_client_id, {});
48 using klass = RemoveRequest<I>;
49 Context *ctx = create_context_callback<klass, &klass::handle_stat_journal>(this);
51 m_journaler->exists(ctx);
55 Context *RemoveRequest<I>::handle_stat_journal(int *result) {
56 ldout(m_cct, 20) << __func__ << ": r=" << *result << dendl;
58 if ((*result < 0) && (*result != -ENOENT)) {
59 lderr(m_cct) << "failed to stat journal header: " << cpp_strerror(*result) << dendl;
60 shut_down_journaler(*result);
64 if (*result == -ENOENT) {
65 shut_down_journaler(0);
74 void RemoveRequest<I>::init_journaler() {
75 ldout(m_cct, 20) << this << " " << __func__ << dendl;
77 using klass = RemoveRequest<I>;
78 Context *ctx = create_context_callback<klass, &klass::handle_init_journaler>(this);
80 m_journaler->init(ctx);
84 Context *RemoveRequest<I>::handle_init_journaler(int *result) {
85 ldout(m_cct, 20) << __func__ << ": r=" << *result << dendl;
87 if ((*result < 0) && (*result != -ENOENT)) {
88 lderr(m_cct) << "failed to init journaler: " << cpp_strerror(*result) << dendl;
89 shut_down_journaler(*result);
98 void RemoveRequest<I>::remove_journal() {
99 ldout(m_cct, 20) << this << " " << __func__ << dendl;
101 using klass = RemoveRequest<I>;
102 Context *ctx = create_context_callback<klass, &klass::handle_remove_journal>(this);
104 m_journaler->remove(true, ctx);
108 Context *RemoveRequest<I>::handle_remove_journal(int *result) {
109 ldout(m_cct, 20) << __func__ << ": r=" << *result << dendl;
112 lderr(m_cct) << "failed to remove journal: " << cpp_strerror(*result) << dendl;
115 shut_down_journaler(*result);
120 void RemoveRequest<I>::shut_down_journaler(int r) {
121 ldout(m_cct, 20) << this << " " << __func__ << dendl;
125 using klass = RemoveRequest<I>;
126 Context *ctx = create_context_callback<klass, &klass::handle_journaler_shutdown>(this);
128 m_journaler->shut_down(ctx);
132 Context *RemoveRequest<I>::handle_journaler_shutdown(int *result) {
133 ldout(m_cct, 20) << __func__ << ": r=" << *result << dendl;
136 lderr(m_cct) << "failed to shut down journaler: " << cpp_strerror(*result) << dendl;
141 if (m_r_saved == 0) {
142 ldout(m_cct, 20) << "done." << dendl;
145 m_on_finish->complete(m_r_saved);
151 } // namespace journal
152 } // namespace librbd
154 template class librbd::journal::RemoveRequest<librbd::ImageCtx>;