| 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_H |
| 26 | #define BLOCK_COROUTINES_H |
| 27 | |
| 28 | #include "block/block_int.h" |
| 29 | |
| 30 | /* For blk_bs() in generated block/block-gen.c */ |
| 31 | #include "system/block-backend.h" |
| 32 | |
| 33 | /* |
| 34 | * I/O API functions. These functions are thread-safe. |
| 35 | * |
| 36 | * See include/block/block-io.h for more information about |
| 37 | * the I/O API. |
| 38 | */ |
| 39 | |
| 40 | int coroutine_fn GRAPH_RDLOCK |
| 41 | bdrv_co_check(BlockDriverState *bs, BdrvCheckResult *res, BdrvCheckMode fix); |
| 42 | |
| 43 | int coroutine_fn GRAPH_RDLOCK |
| 44 | bdrv_co_invalidate_cache(BlockDriverState *bs, Error **errp); |
| 45 | |
| 46 | int coroutine_fn GRAPH_RDLOCK |
| 47 | bdrv_co_common_block_status_above(BlockDriverState *bs, |
| 48 | BlockDriverState *base, |
| 49 | bool include_base, |
| 50 | unsigned int mode, |
| 51 | int64_t offset, |
| 52 | int64_t bytes, |
| 53 | int64_t *pnum, |
| 54 | int64_t *map, |
| 55 | BlockDriverState **file, |
| 56 | int *depth); |
| 57 | |
| 58 | int coroutine_fn GRAPH_RDLOCK |
| 59 | bdrv_co_readv_vmstate(BlockDriverState *bs, QEMUIOVector *qiov, int64_t pos); |
| 60 | |
| 61 | int coroutine_fn GRAPH_RDLOCK |
| 62 | bdrv_co_writev_vmstate(BlockDriverState *bs, QEMUIOVector *qiov, int64_t pos); |
| 63 | |
| 64 | int coroutine_fn GRAPH_RDLOCK |
| 65 | nbd_co_do_establish_connection(BlockDriverState *bs, bool blocking, |
| 66 | Error **errp); |
| 67 | |
| 68 | |
| 69 | /* |
| 70 | * "I/O or GS" API functions. These functions can run without |
| 71 | * the BQL, but only in one specific iothread/main loop. |
| 72 | * |
| 73 | * See include/block/block-io.h for more information about |
| 74 | * the "I/O or GS" API. |
| 75 | */ |
| 76 | |
| 77 | int co_wrapper_mixed_bdrv_rdlock |
| 78 | bdrv_common_block_status_above(BlockDriverState *bs, |
| 79 | BlockDriverState *base, |
| 80 | bool include_base, |
| 81 | unsigned int mode, |
| 82 | int64_t offset, |
| 83 | int64_t bytes, |
| 84 | int64_t *pnum, |
| 85 | int64_t *map, |
| 86 | BlockDriverState **file, |
| 87 | int *depth); |
| 88 | |
| 89 | int co_wrapper_mixed_bdrv_rdlock |
| 90 | nbd_do_establish_connection(BlockDriverState *bs, bool blocking, Error **errp); |
| 91 | |
| 92 | #endif /* BLOCK_COROUTINES_H */ |