0fdb73112b
Use qemu_get_current_aio_context() where possible, since we always submit work to the current thread anyways. We want to also be sure that the thread submitting the work is the same as the one processing the pool, to avoid adding synchronization to the pool list. Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com> Message-Id: <20230203131731.851116-4-eesposit@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
/*
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* QEMU block layer thread pool
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*
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* Copyright IBM, Corp. 2008
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* Copyright Red Hat, Inc. 2012
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*
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* Authors:
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* Anthony Liguori <aliguori@us.ibm.com>
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* Paolo Bonzini <pbonzini@redhat.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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* Contributions after 2012-01-13 are licensed under the terms of the
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* GNU GPL, version 2 or (at your option) any later version.
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*/
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#ifndef QEMU_THREAD_POOL_H
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#define QEMU_THREAD_POOL_H
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#include "block/aio.h"
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#define THREAD_POOL_MAX_THREADS_DEFAULT 64
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typedef int ThreadPoolFunc(void *opaque);
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typedef struct ThreadPool ThreadPool;
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ThreadPool *thread_pool_new(struct AioContext *ctx);
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void thread_pool_free(ThreadPool *pool);
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/*
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* thread_pool_submit* API: submit I/O requests in the thread's
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* current AioContext.
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*/
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BlockAIOCB *thread_pool_submit_aio(ThreadPool *pool,
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ThreadPoolFunc *func, void *arg,
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BlockCompletionFunc *cb, void *opaque);
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int coroutine_fn thread_pool_submit_co(ThreadPool *pool,
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ThreadPoolFunc *func, void *arg);
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void thread_pool_submit(ThreadPool *pool, ThreadPoolFunc *func, void *arg);
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void thread_pool_update_params(ThreadPool *pool, struct AioContext *ctx);
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#endif
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