+++ /dev/null
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-
-#ifndef CEPH_LIBRBD_CACHE_IMAGE_CACHE
-#define CEPH_LIBRBD_CACHE_IMAGE_CACHE
-
-#include "include/buffer_fwd.h"
-#include "include/int_types.h"
-#include <vector>
-
-class Context;
-
-namespace librbd {
-namespace cache {
-
-/**
- * client-side, image extent cache interface
- */
-struct ImageCache {
- typedef std::vector<std::pair<uint64_t,uint64_t> > Extents;
-
- virtual ~ImageCache() {
- }
-
- /// client AIO methods
- virtual void aio_read(Extents&& image_extents, ceph::bufferlist* bl,
- int fadvise_flags, Context *on_finish) = 0;
- virtual void aio_write(Extents&& image_extents, ceph::bufferlist&& bl,
- int fadvise_flags, Context *on_finish) = 0;
- virtual void aio_discard(uint64_t offset, uint64_t length,
- bool skip_partial_discard, Context *on_finish) = 0;
- virtual void aio_flush(Context *on_finish) = 0;
- virtual void aio_writesame(uint64_t offset, uint64_t length,
- ceph::bufferlist&& bl,
- int fadvise_flags, Context *on_finish) = 0;
- virtual void aio_compare_and_write(Extents&& image_extents,
- ceph::bufferlist&& cmp_bl,
- ceph::bufferlist&& bl,
- uint64_t *mismatch_offset,
- int fadvise_flags,
- Context *on_finish) = 0;
-
- /// internal state methods
- virtual void init(Context *on_finish) = 0;
- virtual void shut_down(Context *on_finish) = 0;
-
- virtual void invalidate(Context *on_finish) = 0;
- virtual void flush(Context *on_finish) = 0;
-
-};
-
-} // namespace cache
-} // namespace librbd
-
-#endif // CEPH_LIBRBD_CACHE_IMAGE_CACHE