block/coroutines.h

   1 /*
   2  * Block layer I/O functions
   3  *
   4  * Copyright (c) 2003 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 #ifndef BLOCK_COROUTINES_INT_H
  26 #define BLOCK_COROUTINES_INT_H
  27
  28 #include "block/block_int.h"
  29
  30 int coroutine_fn bdrv_co_check(BlockDriverState *bs,
  31                                BdrvCheckResult *res, BdrvCheckMode fix);
  32 int coroutine_fn bdrv_co_invalidate_cache(BlockDriverState *bs, Error **errp);
  33
  34 int generated_co_wrapper
  35 bdrv_preadv(BdrvChild *child, int64_t offset, unsigned int bytes,
  36             QEMUIOVector *qiov, BdrvRequestFlags flags);
  37 int generated_co_wrapper
  38 bdrv_pwritev(BdrvChild *child, int64_t offset, unsigned int bytes,
  39              QEMUIOVector *qiov, BdrvRequestFlags flags);
  40
  41 int coroutine_fn
  42 bdrv_co_common_block_status_above(BlockDriverState *bs,
  43                                   BlockDriverState *base,
  44                                   bool want_zero,
  45                                   int64_t offset,
  46                                   int64_t bytes,
  47                                   int64_t *pnum,
  48                                   int64_t *map,
  49                                   BlockDriverState **file);
  50 int generated_co_wrapper
  51 bdrv_common_block_status_above(BlockDriverState *bs,
  52                                BlockDriverState *base,
  53                                bool want_zero,
  54                                int64_t offset,
  55                                int64_t bytes,
  56                                int64_t *pnum,
  57                                int64_t *map,
  58                                BlockDriverState **file);
  59
  60 int coroutine_fn bdrv_co_readv_vmstate(BlockDriverState *bs,
  61                                        QEMUIOVector *qiov, int64_t pos);
  62 int coroutine_fn bdrv_co_writev_vmstate(BlockDriverState *bs,
  63                                         QEMUIOVector *qiov, int64_t pos);
  64
  65 #endif /* BLOCK_COROUTINES_INT_H */