diff options
Diffstat (limited to 'qemu-aio.h')
| -rw-r--r-- | qemu-aio.h | 13 |
1 files changed, 13 insertions, 0 deletions
@@ -20,6 +20,11 @@ /* Returns 1 if there are still outstanding AIO requests; 0 otherwise */ typedef int (AioFlushHandler)(void *opaque); +/* Runs all currently allowed AIO callbacks of completed requests in the + * respective AIO backend. Returns 0 if no requests was handled, non-zero + * if at least one queued request was handled. */ +typedef int (AioProcessQueue)(void *opaque); + /* Flush any pending AIO operation. This function will block until all * outstanding AIO operations have been completed or cancelled. */ void qemu_aio_flush(void); @@ -30,6 +35,13 @@ void qemu_aio_flush(void); * result of executing I/O completion or bh callbacks. */ void qemu_aio_wait(void); +/* + * Runs all currently allowed AIO callbacks of completed requests. Returns 0 + * if no requests were handled, non-zero if at least one request was + * processed. + */ +int qemu_aio_process_queue(void); + /* Register a file descriptor and associated callbacks. Behaves very similarly * to qemu_set_fd_handler2. Unlike qemu_set_fd_handler2, these callbacks will * be invoked when using either qemu_aio_wait() or qemu_aio_flush(). @@ -41,6 +53,7 @@ int qemu_aio_set_fd_handler(int fd, IOHandler *io_read, IOHandler *io_write, AioFlushHandler *io_flush, + AioProcessQueue *io_process_queue, void *opaque); #endif |