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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "StateBuilder.h"
#include "include/ceph_assert.h"
#include "include/Context.h"
#include "common/debug.h"
#include "common/errno.h"
#include "journal/Journaler.h"
#include "librbd/ImageCtx.h"
#include "tools/rbd_mirror/image_replayer/CloseImageRequest.h"
#include "tools/rbd_mirror/image_sync/Types.h"
#define dout_context g_ceph_context
#define dout_subsys ceph_subsys_rbd_mirror
#undef dout_prefix
#define dout_prefix *_dout << "rbd::mirror::image_replayer::" \
<< "StateBuilder: " << this << " " \
<< __func__ << ": "
namespace rbd {
namespace mirror {
namespace image_replayer {
template <typename I>
StateBuilder<I>::StateBuilder(const std::string& global_image_id)
: global_image_id(global_image_id) {
dout(10) << "global_image_id=" << global_image_id << dendl;
}
template <typename I>
StateBuilder<I>::~StateBuilder() {
ceph_assert(local_image_ctx == nullptr);
ceph_assert(remote_image_ctx == nullptr);
ceph_assert(m_sync_point_handler == nullptr);
}
template <typename I>
bool StateBuilder<I>::is_local_primary() const {
if (local_promotion_state == librbd::mirror::PROMOTION_STATE_PRIMARY) {
ceph_assert(!local_image_id.empty());
return true;
}
return false;
}
template <typename I>
bool StateBuilder<I>::is_remote_primary() const {
if (remote_promotion_state == librbd::mirror::PROMOTION_STATE_PRIMARY) {
ceph_assert(!remote_image_id.empty());
return true;
}
return false;
}
template <typename I>
bool StateBuilder<I>::is_linked() const {
if (local_promotion_state == librbd::mirror::PROMOTION_STATE_NON_PRIMARY) {
ceph_assert(!local_image_id.empty());
return is_linked_impl();
}
return false;
}
template <typename I>
void StateBuilder<I>::close_local_image(Context* on_finish) {
if (local_image_ctx == nullptr) {
on_finish->complete(0);
return;
}
dout(10) << dendl;
auto ctx = new LambdaContext([this, on_finish](int r) {
handle_close_local_image(r, on_finish);
});
auto request = image_replayer::CloseImageRequest<I>::create(
&local_image_ctx, ctx);
request->send();
}
template <typename I>
void StateBuilder<I>::handle_close_local_image(int r, Context* on_finish) {
dout(10) << "r=" << r << dendl;
ceph_assert(local_image_ctx == nullptr);
if (r < 0) {
derr << "failed to close local image for image " << global_image_id << ": "
<< cpp_strerror(r) << dendl;
}
on_finish->complete(r);
}
template <typename I>
void StateBuilder<I>::close_remote_image(Context* on_finish) {
if (remote_image_ctx == nullptr) {
on_finish->complete(0);
return;
}
dout(10) << dendl;
auto ctx = new LambdaContext([this, on_finish](int r) {
handle_close_remote_image(r, on_finish);
});
auto request = image_replayer::CloseImageRequest<I>::create(
&remote_image_ctx, ctx);
request->send();
}
template <typename I>
void StateBuilder<I>::handle_close_remote_image(int r, Context* on_finish) {
dout(10) << "r=" << r << dendl;
ceph_assert(remote_image_ctx == nullptr);
if (r < 0) {
derr << "failed to close remote image for image " << global_image_id << ": "
<< cpp_strerror(r) << dendl;
}
on_finish->complete(r);
}
template <typename I>
void StateBuilder<I>::destroy_sync_point_handler() {
if (m_sync_point_handler == nullptr) {
return;
}
dout(15) << dendl;
m_sync_point_handler->destroy();
m_sync_point_handler = nullptr;
}
} // namespace image_replayer
} // namespace mirror
} // namespace rbd
template class rbd::mirror::image_replayer::StateBuilder<librbd::ImageCtx>;
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