xref: /qemu/block/coroutines.h (revision b355f08a)
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 include_base,
45                                   bool want_zero,
46                                   int64_t offset,
47                                   int64_t bytes,
48                                   int64_t *pnum,
49                                   int64_t *map,
50                                   BlockDriverState **file,
51                                   int *depth);
52 int generated_co_wrapper
53 bdrv_common_block_status_above(BlockDriverState *bs,
54                                BlockDriverState *base,
55                                bool include_base,
56                                bool want_zero,
57                                int64_t offset,
58                                int64_t bytes,
59                                int64_t *pnum,
60                                int64_t *map,
61                                BlockDriverState **file,
62                                int *depth);
63 
64 int coroutine_fn bdrv_co_readv_vmstate(BlockDriverState *bs,
65                                        QEMUIOVector *qiov, int64_t pos);
66 int coroutine_fn bdrv_co_writev_vmstate(BlockDriverState *bs,
67                                         QEMUIOVector *qiov, int64_t pos);
68 
69 int generated_co_wrapper
70 nbd_do_establish_connection(BlockDriverState *bs, Error **errp);
71 int coroutine_fn
72 nbd_co_do_establish_connection(BlockDriverState *bs, Error **errp);
73 
74 
75 #endif /* BLOCK_COROUTINES_INT_H */
76