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-rw-r--r--src/librbd/migration/FormatInterface.h53
1 files changed, 53 insertions, 0 deletions
diff --git a/src/librbd/migration/FormatInterface.h b/src/librbd/migration/FormatInterface.h
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+++ b/src/librbd/migration/FormatInterface.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_MIGRATION_FORMAT_INTERFACE_H
+#define CEPH_LIBRBD_MIGRATION_FORMAT_INTERFACE_H
+
+#include "include/buffer_fwd.h"
+#include "include/int_types.h"
+#include "common/zipkin_trace.h"
+#include "librbd/Types.h"
+#include "librbd/io/Types.h"
+#include <map>
+
+struct Context;
+
+namespace librbd {
+
+namespace io {
+struct AioCompletion;
+struct ReadResult;
+} // namespace io
+
+namespace migration {
+
+struct FormatInterface {
+ typedef std::map<uint64_t, SnapInfo> SnapInfos;
+
+ virtual ~FormatInterface() {
+ }
+
+ virtual void open(Context* on_finish) = 0;
+ virtual void close(Context* on_finish) = 0;
+
+ virtual void get_snapshots(SnapInfos* snap_infos, Context* on_finish) = 0;
+ virtual void get_image_size(uint64_t snap_id, uint64_t* size,
+ Context* on_finish) = 0;
+
+ virtual bool read(io::AioCompletion* aio_comp, uint64_t snap_id,
+ io::Extents&& image_extents, io::ReadResult&& read_result,
+ int op_flags, int read_flags,
+ const ZTracer::Trace &parent_trace) = 0;
+
+ virtual void list_snaps(io::Extents&& image_extents, io::SnapIds&& snap_ids,
+ int list_snaps_flags,
+ io::SnapshotDelta* snapshot_delta,
+ const ZTracer::Trace &parent_trace,
+ Context* on_finish) = 0;
+};
+
+} // namespace migration
+} // namespace librbd
+
+#endif // CEPH_LIBRBD_MIGRATION_FORMAT_INTERFACE_H