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-rw-r--r--src/librbd/trash/RemoveRequest.cc170
1 files changed, 170 insertions, 0 deletions
diff --git a/src/librbd/trash/RemoveRequest.cc b/src/librbd/trash/RemoveRequest.cc
new file mode 100644
index 000000000..1149d1d80
--- /dev/null
+++ b/src/librbd/trash/RemoveRequest.cc
@@ -0,0 +1,170 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "librbd/trash/RemoveRequest.h"
+#include "common/dout.h"
+#include "common/errno.h"
+#include "cls/rbd/cls_rbd_client.h"
+#include "librbd/ExclusiveLock.h"
+#include "librbd/ImageCtx.h"
+#include "librbd/ImageState.h"
+#include "librbd/Utils.h"
+#include "librbd/asio/ContextWQ.h"
+#include "librbd/image/RemoveRequest.h"
+
+#define dout_subsys ceph_subsys_rbd
+#undef dout_prefix
+#define dout_prefix *_dout << "librbd::trash::RemoveRequest: " << this \
+ << " " << __func__ << ": "
+
+namespace librbd {
+namespace trash {
+
+using util::create_context_callback;
+using util::create_rados_callback;
+
+template <typename I>
+void RemoveRequest<I>::send() {
+ set_state();
+}
+
+template <typename I>
+void RemoveRequest<I>::set_state() {
+ ldout(m_cct, 10) << dendl;
+
+ librados::ObjectWriteOperation op;
+ cls_client::trash_state_set(&op, m_image_id, m_trash_set_state,
+ m_trash_expect_state);
+
+ auto aio_comp = create_rados_callback<
+ RemoveRequest<I>, &RemoveRequest<I>::handle_set_state>(this);
+ int r = m_io_ctx.aio_operate(RBD_TRASH, aio_comp, &op);
+ ceph_assert(r == 0);
+ aio_comp->release();
+}
+
+template <typename I>
+void RemoveRequest<I>::handle_set_state(int r) {
+ ldout(m_cct, 10) << "r=" << r << dendl;
+
+ if (r < 0 && r != -EOPNOTSUPP) {
+ lderr(m_cct) << "error setting trash image state: " << cpp_strerror(r)
+ << dendl;
+ if (m_ret_val == 0) {
+ m_ret_val = r;
+ }
+ if (m_trash_set_state == cls::rbd::TRASH_IMAGE_STATE_REMOVING) {
+ close_image();
+ } else {
+ finish(m_ret_val);
+ }
+ return;
+ }
+
+ if (m_trash_set_state == cls::rbd::TRASH_IMAGE_STATE_REMOVING) {
+ remove_image();
+ } else {
+ ceph_assert(m_trash_set_state == cls::rbd::TRASH_IMAGE_STATE_NORMAL);
+ finish(m_ret_val < 0 ? m_ret_val : r);
+ };
+}
+
+template <typename I>
+void RemoveRequest<I>::close_image() {
+ if (m_image_ctx == nullptr) {
+ finish(m_ret_val);
+ return;
+ }
+
+ ldout(m_cct, 10) << dendl;
+
+ auto ctx = create_context_callback<
+ RemoveRequest<I>, &RemoveRequest<I>::handle_close_image>(this);
+ m_image_ctx->state->close(ctx);
+}
+
+template <typename I>
+void RemoveRequest<I>::handle_close_image(int r) {
+ ldout(m_cct, 10) << "r=" << r << dendl;
+
+ if (r < 0) {
+ ldout(m_cct, 5) << "failed to close image:" << cpp_strerror(r) << dendl;
+ }
+
+ m_image_ctx = nullptr;
+ finish(m_ret_val);
+}
+
+template <typename I>
+void RemoveRequest<I>::remove_image() {
+ ldout(m_cct, 10) << dendl;
+
+ auto ctx = create_context_callback<
+ RemoveRequest<I>, &RemoveRequest<I>::handle_remove_image>(this);
+ if (m_image_ctx != nullptr) {
+ auto req = librbd::image::RemoveRequest<I>::create(
+ m_io_ctx, m_image_ctx, m_force, true, m_prog_ctx, m_op_work_queue, ctx);
+ req->send();
+ } else {
+ auto req = librbd::image::RemoveRequest<I>::create(
+ m_io_ctx, "", m_image_id, m_force, true, m_prog_ctx, m_op_work_queue,
+ ctx);
+ req->send();
+ }
+}
+
+template <typename I>
+void RemoveRequest<I>::handle_remove_image(int r) {
+ ldout(m_cct, 10) << "r=" << r << dendl;
+
+ if (r < 0) {
+ ldout(m_cct, 5) << "failed to remove image:" << cpp_strerror(r) << dendl;
+
+ m_ret_val = r;
+ m_trash_set_state = cls::rbd::TRASH_IMAGE_STATE_NORMAL;
+ m_trash_expect_state = cls::rbd::TRASH_IMAGE_STATE_REMOVING;
+ set_state();
+ return;
+ }
+
+ m_image_ctx = nullptr;
+ remove_trash_entry();
+}
+
+template <typename I>
+void RemoveRequest<I>::remove_trash_entry() {
+ ldout(m_cct, 10) << dendl;
+
+ librados::ObjectWriteOperation op;
+ cls_client::trash_remove(&op, m_image_id);
+
+ auto aio_comp = create_rados_callback<
+ RemoveRequest<I>, &RemoveRequest<I>::handle_remove_trash_entry>(this);
+ int r = m_io_ctx.aio_operate(RBD_TRASH, aio_comp, &op);
+ ceph_assert(r == 0);
+ aio_comp->release();
+}
+
+template <typename I>
+void RemoveRequest<I>::handle_remove_trash_entry(int r) {
+ ldout(m_cct, 10) << "r=" << r << dendl;
+
+ if (r < 0 && r != -ENOENT) {
+ lderr(m_cct) << "error removing trash entry: " << cpp_strerror(r) << dendl;
+ }
+
+ finish(0);
+}
+
+template <typename I>
+void RemoveRequest<I>::finish(int r) {
+ ldout(m_cct, 10) << "r=" << r << dendl;
+
+ m_on_finish->complete(r);
+ delete this;
+}
+
+} // namespace trash
+} // namespace librbd
+
+template class librbd::trash::RemoveRequest<librbd::ImageCtx>;