cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

aio_task.h (2065B)

      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#include "qemu/coroutine.h"
     29
     30typedef struct AioTaskPool AioTaskPool;
     31typedef struct AioTask AioTask;
     32typedef int coroutine_fn (*AioTaskFunc)(AioTask *task);
     33struct AioTask {
     34    AioTaskPool *pool;
     35    AioTaskFunc func;
     36    int ret;
     37};
     38
     39AioTaskPool *coroutine_fn aio_task_pool_new(int max_busy_tasks);
     40void aio_task_pool_free(AioTaskPool *);
     41
     42/* error code of failed task or 0 if all is OK */
     43int aio_task_pool_status(AioTaskPool *pool);
     44
     45bool aio_task_pool_empty(AioTaskPool *pool);
     46
     47/* User provides filled @task, however task->pool will be set automatically */
     48void coroutine_fn aio_task_pool_start_task(AioTaskPool *pool, AioTask *task);
     49
     50void coroutine_fn aio_task_pool_wait_slot(AioTaskPool *pool);
     51void coroutine_fn aio_task_pool_wait_one(AioTaskPool *pool);
     52void coroutine_fn aio_task_pool_wait_all(AioTaskPool *pool);
     53
     54#endif /* BLOCK_AIO_TASK_H */