| 1 | /* |
| 2 | * Aio tasks loops |
| 3 | * |
| 4 | * Copyright (c) 2019 Virtuozzo International GmbH. |
| 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_AIO_TASK_H |
| 26 | #define BLOCK_AIO_TASK_H |
| 27 | |
| 28 | typedef struct AioTaskPool AioTaskPool; |
| 29 | typedef struct AioTask AioTask; |
| 30 | typedef int coroutine_fn (*AioTaskFunc)(AioTask *task); |
| 31 | struct AioTask { |
| 32 | AioTaskPool *pool; |
| 33 | AioTaskFunc func; |
| 34 | int ret; |
| 35 | }; |
| 36 | |
| 37 | AioTaskPool *coroutine_fn aio_task_pool_new(int max_busy_tasks); |
| 38 | void aio_task_pool_free(AioTaskPool *); |
| 39 | |
| 40 | /* error code of failed task or 0 if all is OK */ |
| 41 | int aio_task_pool_status(AioTaskPool *pool); |
| 42 | |
| 43 | /* User provides filled @task, however task->pool will be set automatically */ |
| 44 | void coroutine_fn aio_task_pool_start_task(AioTaskPool *pool, AioTask *task); |
| 45 | |
| 46 | void coroutine_fn aio_task_pool_wait_slot(AioTaskPool *pool); |
| 47 | void coroutine_fn aio_task_pool_wait_one(AioTaskPool *pool); |
| 48 | void coroutine_fn aio_task_pool_wait_all(AioTaskPool *pool); |
| 49 | |
| 50 | #endif /* BLOCK_AIO_TASK_H */ |