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-rw-r--r--src/librbd/mirror/GetStatusRequest.cc116
1 files changed, 116 insertions, 0 deletions
diff --git a/src/librbd/mirror/GetStatusRequest.cc b/src/librbd/mirror/GetStatusRequest.cc
new file mode 100644
index 000000000..40d4a664b
--- /dev/null
+++ b/src/librbd/mirror/GetStatusRequest.cc
@@ -0,0 +1,116 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "librbd/mirror/GetStatusRequest.h"
+#include "common/dout.h"
+#include "common/errno.h"
+#include "cls/rbd/cls_rbd_client.h"
+#include "librbd/ImageCtx.h"
+#include "librbd/ImageState.h"
+#include "librbd/Journal.h"
+#include "librbd/Utils.h"
+#include "librbd/mirror/GetInfoRequest.h"
+
+#define dout_subsys ceph_subsys_rbd
+#undef dout_prefix
+#define dout_prefix *_dout << "librbd::mirror::GetStatusRequest: " << this \
+ << " " << __func__ << ": "
+
+namespace librbd {
+namespace mirror {
+
+using librbd::util::create_context_callback;
+using librbd::util::create_rados_callback;
+
+template <typename I>
+void GetStatusRequest<I>::send() {
+ *m_mirror_image_status = cls::rbd::MirrorImageStatus(
+ {{cls::rbd::MirrorImageSiteStatus::LOCAL_MIRROR_UUID,
+ cls::rbd::MIRROR_IMAGE_STATUS_STATE_UNKNOWN, "status not found"}});
+
+ get_info();
+}
+
+template <typename I>
+void GetStatusRequest<I>::get_info() {
+ CephContext *cct = m_image_ctx.cct;
+ ldout(cct, 20) << dendl;
+
+ auto ctx = create_context_callback<
+ GetStatusRequest<I>, &GetStatusRequest<I>::handle_get_info>(this);
+ auto req = GetInfoRequest<I>::create(m_image_ctx, m_mirror_image,
+ m_promotion_state,
+ &m_primary_mirror_uuid, ctx);
+ req->send();
+}
+
+template <typename I>
+void GetStatusRequest<I>::handle_get_info(int r) {
+ CephContext *cct = m_image_ctx.cct;
+ ldout(cct, 20) << "r=" << r << dendl;
+
+ if (r < 0) {
+ if (r != -ENOENT) {
+ lderr(cct) << "failed to retrieve mirroring state: " << cpp_strerror(r)
+ << dendl;
+ }
+ finish(r);
+ return;
+ } else if (m_mirror_image->state != cls::rbd::MIRROR_IMAGE_STATE_ENABLED) {
+ finish(0);
+ return;
+ }
+
+ get_status();
+}
+
+template <typename I>
+void GetStatusRequest<I>::get_status() {
+ CephContext *cct = m_image_ctx.cct;
+ ldout(cct, 20) << dendl;
+
+ librados::ObjectReadOperation op;
+ cls_client::mirror_image_status_get_start(
+ &op, m_mirror_image->global_image_id);
+
+ librados::AioCompletion *comp = create_rados_callback<
+ GetStatusRequest<I>, &GetStatusRequest<I>::handle_get_status>(this);
+ int r = m_image_ctx.md_ctx.aio_operate(RBD_MIRRORING, comp, &op, &m_out_bl);
+ ceph_assert(r == 0);
+ comp->release();
+}
+
+template <typename I>
+void GetStatusRequest<I>::handle_get_status(int r) {
+ CephContext *cct = m_image_ctx.cct;
+ ldout(cct, 20) << "r=" << r << dendl;
+
+ if (r == 0) {
+ auto iter = m_out_bl.cbegin();
+ r = cls_client::mirror_image_status_get_finish(&iter,
+ m_mirror_image_status);
+ }
+
+ if (r < 0 && r != -ENOENT) {
+ lderr(cct) << "failed to retrieve mirror image status: " << cpp_strerror(r)
+ << dendl;
+ finish(r);
+ return;
+ }
+
+ finish(0);
+}
+
+template <typename I>
+void GetStatusRequest<I>::finish(int r) {
+ CephContext *cct = m_image_ctx.cct;
+ ldout(cct, 20) << "r=" << r << dendl;
+
+ m_on_finish->complete(r);
+ delete this;
+}
+
+} // namespace mirror
+} // namespace librbd
+
+template class librbd::mirror::GetStatusRequest<librbd::ImageCtx>;