1 /* 2 * QEMU block layer thread pool 3 * 4 * Copyright IBM, Corp. 2008 5 * Copyright Red Hat, Inc. 2012 6 * 7 * Authors: 8 * Anthony Liguori <aliguori@us.ibm.com> 9 * Paolo Bonzini <pbonzini@redhat.com> 10 * 11 * This work is licensed under the terms of the GNU GPL, version 2. See 12 * the COPYING file in the top-level directory. 13 * 14 * Contributions after 2012-01-13 are licensed under the terms of the 15 * GNU GPL, version 2 or (at your option) any later version. 16 */ 17 18 #ifndef QEMU_THREAD_POOL_H 19 #define QEMU_THREAD_POOL_H 20 21 #include "block/aio.h" 22 23 #define THREAD_POOL_MAX_THREADS_DEFAULT 64 24 25 typedef int ThreadPoolFunc(void *opaque); 26 27 typedef struct ThreadPool ThreadPool; 28 29 ThreadPool *thread_pool_new(struct AioContext *ctx); 30 void thread_pool_free(ThreadPool *pool); 31 32 /* 33 * thread_pool_submit* API: submit I/O requests in the thread's 34 * current AioContext. 35 */ 36 BlockAIOCB *thread_pool_submit_aio(ThreadPoolFunc *func, void *arg, 37 BlockCompletionFunc *cb, void *opaque); 38 int coroutine_fn thread_pool_submit_co(ThreadPoolFunc *func, void *arg); 39 void thread_pool_submit(ThreadPoolFunc *func, void *arg); 40 41 void thread_pool_update_params(ThreadPool *pool, struct AioContext *ctx); 42 43 #endif 44