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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "tools/rbd_mirror/image_replayer/GetMirrorImageIdRequest.h"
#include "include/rados/librados.hpp"
#include "cls/rbd/cls_rbd_client.h"
#include "common/debug.h"
#include "common/errno.h"
#include "librbd/ImageCtx.h"
#include "librbd/Utils.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::" \
<< "GetMirrorImageIdRequest: " << this << " " \
<< __func__ << ": "
namespace rbd {
namespace mirror {
namespace image_replayer {
using librbd::util::create_rados_callback;
template <typename I>
void GetMirrorImageIdRequest<I>::send() {
dout(20) << dendl;
get_image_id();
}
template <typename I>
void GetMirrorImageIdRequest<I>::get_image_id() {
dout(20) << dendl;
// attempt to cross-reference a image id by the global image id
librados::ObjectReadOperation op;
librbd::cls_client::mirror_image_get_image_id_start(&op, m_global_image_id);
librados::AioCompletion *aio_comp = create_rados_callback<
GetMirrorImageIdRequest<I>,
&GetMirrorImageIdRequest<I>::handle_get_image_id>(
this);
int r = m_io_ctx.aio_operate(RBD_MIRRORING, aio_comp, &op, &m_out_bl);
ceph_assert(r == 0);
aio_comp->release();
}
template <typename I>
void GetMirrorImageIdRequest<I>::handle_get_image_id(int r) {
if (r == 0) {
auto iter = m_out_bl.cbegin();
r = librbd::cls_client::mirror_image_get_image_id_finish(
&iter, m_image_id);
}
dout(20) << "r=" << r << ", "
<< "image_id=" << *m_image_id << dendl;
if (r < 0) {
if (r == -ENOENT) {
dout(10) << "global image " << m_global_image_id << " not registered"
<< dendl;
} else {
derr << "failed to retrieve image id: " << cpp_strerror(r) << dendl;
}
finish(r);
return;
}
finish(0);
}
template <typename I>
void GetMirrorImageIdRequest<I>::finish(int r) {
dout(20) << "r=" << r << dendl;
m_on_finish->complete(r);
delete this;
}
} // namespace image_replayer
} // namespace mirror
} // namespace rbd
template class rbd::mirror::image_replayer::GetMirrorImageIdRequest<librbd::ImageCtx>;
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