1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 #include "librbd/managed_lock/ReacquireRequest.h"
5 #include "librbd/Watcher.h"
6 #include "cls/lock/cls_lock_client.h"
7 #include "cls/lock/cls_lock_types.h"
8 #include "common/dout.h"
9 #include "common/errno.h"
10 #include "librbd/ImageCtx.h"
11 #include "librbd/Utils.h"
12 #include "librbd/managed_lock/Utils.h"
14 #define dout_subsys ceph_subsys_rbd
16 #define dout_prefix *_dout << "librbd::managed_lock::ReacquireRequest: " \
17 << this << ": " << __func__
22 namespace managed_lock {
24 using librbd::util::create_rados_callback;
27 ReacquireRequest<I>::ReacquireRequest(librados::IoCtx& ioctx,
29 const string& old_cookie,
30 const string &new_cookie,
33 : m_ioctx(ioctx), m_oid(oid), m_old_cookie(old_cookie),
34 m_new_cookie(new_cookie), m_exclusive(exclusive), m_on_finish(on_finish) {
39 void ReacquireRequest<I>::send() {
44 void ReacquireRequest<I>::set_cookie() {
45 CephContext *cct = reinterpret_cast<CephContext *>(m_ioctx.cct());
46 ldout(cct, 10) << dendl;
48 librados::ObjectWriteOperation op;
49 rados::cls::lock::set_cookie(&op, RBD_LOCK_NAME,
50 m_exclusive ? LOCK_EXCLUSIVE : LOCK_SHARED,
51 m_old_cookie, util::get_watcher_lock_tag(),
54 librados::AioCompletion *rados_completion = create_rados_callback<
55 ReacquireRequest, &ReacquireRequest::handle_set_cookie>(this);
56 int r = m_ioctx.aio_operate(m_oid, rados_completion, &op);
58 rados_completion->release();
62 void ReacquireRequest<I>::handle_set_cookie(int r) {
63 CephContext *cct = reinterpret_cast<CephContext *>(m_ioctx.cct());
64 ldout(cct, 10) << ": r=" << r << dendl;
66 if (r == -EOPNOTSUPP) {
67 ldout(cct, 10) << ": OSD doesn't support updating lock" << dendl;
69 lderr(cct) << ": failed to update lock: " << cpp_strerror(r) << dendl;
72 m_on_finish->complete(r);
76 } // namespace managed_lock
79 template class librbd::managed_lock::ReacquireRequest<librbd::ImageCtx>;