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-rw-r--r--src/librbd/operation/SnapshotProtectRequest.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/src/librbd/operation/SnapshotProtectRequest.h b/src/librbd/operation/SnapshotProtectRequest.h
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_LIBRBD_OPERATION_SNAPSHOT_PROTECT_REQUEST_H
+#define CEPH_LIBRBD_OPERATION_SNAPSHOT_PROTECT_REQUEST_H
+
+#include "librbd/operation/Request.h"
+#include <string>
+
+class Context;
+
+namespace librbd {
+
+class ImageCtx;
+
+namespace operation {
+
+template <typename ImageCtxT = ImageCtx>
+class SnapshotProtectRequest : public Request<ImageCtxT> {
+public:
+ /**
+ * Snap Protect goes through the following state machine:
+ *
+ * @verbatim
+ *
+ * <start>
+ * |
+ * v
+ * STATE_PROTECT_SNAP
+ * |
+ * v
+ * <finish>
+ *
+ * @endverbatim
+ *
+ */
+ enum State {
+ STATE_PROTECT_SNAP
+ };
+
+ SnapshotProtectRequest(ImageCtxT &image_ctx, Context *on_finish,
+ const cls::rbd::SnapshotNamespace &snap_namespace,
+ const std::string &snap_name);
+
+protected:
+ void send_op() override;
+ bool should_complete(int r) override;
+
+ journal::Event create_event(uint64_t op_tid) const override {
+ return journal::SnapProtectEvent(op_tid, m_snap_namespace, m_snap_name);
+ }
+
+private:
+ cls::rbd::SnapshotNamespace m_snap_namespace;
+ std::string m_snap_name;
+ State m_state;
+
+ void send_protect_snap();
+
+ int verify_and_send_protect_snap();
+};
+
+} // namespace operation
+} // namespace librbd
+
+extern template class librbd::operation::SnapshotProtectRequest<librbd::ImageCtx>;
+
+#endif // CEPH_LIBRBD_OPERATION_SNAPSHOT_PROTECT_REQUEST_H