ceph/src/librbd/io/Utils.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3
   4 #ifndef CEPH_LIBRBD_IO_UTILS_H
   5 #define CEPH_LIBRBD_IO_UTILS_H
   6
   7 #include "include/int_types.h"
   8 #include "include/buffer_fwd.h"
   9 #include "include/rados/rados_types.hpp"
  10 #include "common/zipkin_trace.h"
  11 #include "librbd/io/Types.h"
  12 #include <map>
  13
  14 class Context;
  15 class ObjectExtent;
  16
  17 namespace librbd {
  18
  19 struct ImageCtx;
  20
  21 namespace io {
  22 namespace util {
  23
  24 bool assemble_write_same_extent(const LightweightObjectExtent &object_extent,
  25                                 const ceph::bufferlist& data,
  26                                 ceph::bufferlist *ws_data,
  27                                 bool force_write);
  28
  29 template <typename ImageCtxT = librbd::ImageCtx>
  30 void read_parent(ImageCtxT *image_ctx, uint64_t object_no, uint64_t off,
  31                  uint64_t len, librados::snap_t snap_id,
  32                  const ZTracer::Trace &trace, ceph::bufferlist* data,
  33                  Context* on_finish);
  34
  35 } // namespace util
  36 } // namespace io
  37 } // namespace librbd
  38
  39 #endif // CEPH_LIBRBD_IO_UTILS_H