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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "librbd/journal/ResetRequest.h"
#include "common/dout.h"
#include "common/errno.h"
#include "common/Timer.h"
#include "common/WorkQueue.h"
#include "journal/Journaler.h"
#include "journal/Settings.h"
#include "include/ceph_assert.h"
#include "librbd/Journal.h"
#include "librbd/Utils.h"
#include "librbd/journal/CreateRequest.h"
#include "librbd/journal/RemoveRequest.h"
#define dout_subsys ceph_subsys_rbd
#undef dout_prefix
#define dout_prefix *_dout << "librbd::journal::ResetRequest: " << this << " " \
<< __func__ << ": "
namespace librbd {
namespace journal {
using util::create_async_context_callback;
using util::create_context_callback;
template<typename I>
void ResetRequest<I>::send() {
init_journaler();
}
template<typename I>
void ResetRequest<I>::init_journaler() {
ldout(m_cct, 10) << dendl;
m_journaler = new Journaler(m_io_ctx, m_image_id, m_client_id, {}, nullptr);
Context *ctx = create_context_callback<
ResetRequest<I>, &ResetRequest<I>::handle_init_journaler>(this);
m_journaler->init(ctx);
}
template<typename I>
void ResetRequest<I>::handle_init_journaler(int r) {
ldout(m_cct, 10) << "r=" << r << dendl;
if (r == -ENOENT) {
ldout(m_cct, 5) << "journal does not exist" << dendl;
m_ret_val = r;
} else if (r < 0) {
lderr(m_cct) << "failed to init journaler: " << cpp_strerror(r) << dendl;
m_ret_val = r;
} else {
int64_t pool_id;
m_journaler->get_metadata(&m_order, &m_splay_width, &pool_id);
if (pool_id != -1) {
librados::Rados rados(m_io_ctx);
r = rados.pool_reverse_lookup(pool_id, &m_object_pool_name);
if (r < 0) {
lderr(m_cct) << "failed to lookup data pool: " << cpp_strerror(r)
<< dendl;
m_ret_val = r;
}
}
}
shut_down_journaler();
}
template<typename I>
void ResetRequest<I>::shut_down_journaler() {
ldout(m_cct, 10) << dendl;
Context *ctx = create_async_context_callback(
m_op_work_queue, create_context_callback<
ResetRequest<I>, &ResetRequest<I>::handle_journaler_shutdown>(this));
m_journaler->shut_down(ctx);
}
template<typename I>
void ResetRequest<I>::handle_journaler_shutdown(int r) {
ldout(m_cct, 10) << "r=" << r << dendl;
delete m_journaler;
if (r < 0) {
lderr(m_cct) << "failed to shut down journaler: " << cpp_strerror(r)
<< dendl;
if (m_ret_val == 0) {
m_ret_val = r;
}
}
if (m_ret_val < 0) {
finish(m_ret_val);
return;
}
remove_journal();
}
template<typename I>
void ResetRequest<I>::remove_journal() {
ldout(m_cct, 10) << dendl;
Context *ctx = create_context_callback<
ResetRequest<I>, &ResetRequest<I>::handle_remove_journal>(this);
auto req = RemoveRequest<I>::create(m_io_ctx, m_image_id, m_client_id,
m_op_work_queue, ctx);
req->send();
}
template<typename I>
void ResetRequest<I>::handle_remove_journal(int r) {
ldout(m_cct, 10) << "r=" << r << dendl;
if (r < 0) {
lderr(m_cct) << "failed to remove journal: " << cpp_strerror(r) << dendl;
finish(r);
return;
}
create_journal();
}
template<typename I>
void ResetRequest<I>::create_journal() {
ldout(m_cct, 10) << dendl;
Context *ctx = create_context_callback<
ResetRequest<I>, &ResetRequest<I>::handle_create_journal>(this);
journal::TagData tag_data(m_mirror_uuid);
auto req = CreateRequest<I>::create(m_io_ctx, m_image_id, m_order,
m_splay_width, m_object_pool_name,
cls::journal::Tag::TAG_CLASS_NEW,
tag_data, m_client_id, m_op_work_queue,
ctx);
req->send();
}
template<typename I>
void ResetRequest<I>::handle_create_journal(int r) {
ldout(m_cct, 10) << "r=" << r << dendl;
if (r < 0) {
lderr(m_cct) << "failed to create journal: " << cpp_strerror(r) << dendl;
}
finish(r);
}
template<typename I>
void ResetRequest<I>::finish(int r) {
ldout(m_cct, 10) << "r=" << r << dendl;
m_on_finish->complete(r);
delete this;
}
} // namespace journal
} // namespace librbd
template class librbd::journal::ResetRequest<librbd::ImageCtx>;
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