include/block/block-copy.h

   1 /*
   2  * block_copy API
   3  *
   4  * Copyright (C) 2013 Proxmox Server Solutions
   5  * Copyright (c) 2019 Virtuozzo International GmbH.
   6  *
   7  * Authors:
   8  *  Dietmar Maurer (dietmar@proxmox.com)
   9  *  Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
  10  *
  11  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  12  * See the COPYING file in the top-level directory.
  13  */
  14
  15 #ifndef BLOCK_COPY_H
  16 #define BLOCK_COPY_H
  17
  18 #include "block/block.h"
  19 #include "qemu/co-shared-resource.h"
  20
  21 typedef void (*ProgressBytesCallbackFunc)(int64_t bytes, void *opaque);
  22 typedef struct BlockCopyState BlockCopyState;
  23
  24 BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target,
  25                                      int64_t cluster_size,
  26                                      BdrvRequestFlags write_flags,
  27                                      Error **errp);
  28
  29 void block_copy_set_progress_callback(
  30         BlockCopyState *s,
  31         ProgressBytesCallbackFunc progress_bytes_callback,
  32         void *progress_opaque);
  33
  34 void block_copy_set_progress_meter(BlockCopyState *s, ProgressMeter *pm);
  35
  36 void block_copy_state_free(BlockCopyState *s);
  37
  38 int64_t block_copy_reset_unallocated(BlockCopyState *s,
  39                                      int64_t offset, int64_t *count);
  40
  41 int coroutine_fn block_copy(BlockCopyState *s, int64_t offset, int64_t bytes,
  42                             bool *error_is_read);
  43
  44 BdrvDirtyBitmap *block_copy_dirty_bitmap(BlockCopyState *s);
  45 void block_copy_set_skip_unallocated(BlockCopyState *s, bool skip);
  46
  47 #endif /* BLOCK_COPY_H */