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threadpool: drop global thread pool

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Now that each AioContext has a ThreadPool and the main loop AioContext
can be fetched with bdrv_get_aio_context(), we can eliminate the concept
of a global thread pool from thread-pool.c.

The submit functions must take a ThreadPool* argument.

block/raw-posix.c and block/raw-win32.c use
aio_get_thread_pool(bdrv_get_aio_context(bs)) to fetch the main loop's
ThreadPool.

tests/test-thread-pool.c must be updated to reflect the new
thread_pool_submit() function prototypes.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2013-03-07 13:41:49 +01:00
parent 85d126f3ee
commit c4d9d19645
5 changed files with 43 additions and 46 deletions
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10
include/block/thread-pool.h
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@ -31,9 +31,11 @@ typedef struct ThreadPool ThreadPool;
ThreadPool *thread_pool_new(struct AioContext *ctx);
void thread_pool_free(ThreadPool *pool);
BlockDriverAIOCB *thread_pool_submit_aio(ThreadPoolFunc *func, void *arg,
BlockDriverCompletionFunc *cb, void *opaque);
int coroutine_fn thread_pool_submit_co(ThreadPoolFunc *func, void *arg);
void thread_pool_submit(ThreadPoolFunc *func, void *arg);
BlockDriverAIOCB *thread_pool_submit_aio(ThreadPool *pool,
ThreadPoolFunc *func, void *arg,
BlockDriverCompletionFunc *cb, void *opaque);
int coroutine_fn thread_pool_submit_co(ThreadPool *pool,
ThreadPoolFunc *func, void *arg);
void thread_pool_submit(ThreadPool *pool, ThreadPoolFunc *func, void *arg);
#endif