diff options
Diffstat (limited to 'include/block/aio.h')
| -rw-r--r-- | include/block/aio.h | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/include/block/aio.h b/include/block/aio.h index c23de3cd1f..4603c0f066 100644 --- a/include/block/aio.h +++ b/include/block/aio.h @@ -205,12 +205,25 @@ void qemu_bh_cancel(QEMUBH *bh); void qemu_bh_delete(QEMUBH *bh); /* Return whether there are any pending callbacks from the GSource - * attached to the AioContext. + * attached to the AioContext, before g_poll is invoked. + * + * This is used internally in the implementation of the GSource. + */ +bool aio_prepare(AioContext *ctx); + +/* Return whether there are any pending callbacks from the GSource + * attached to the AioContext, after g_poll is invoked. * * This is used internally in the implementation of the GSource. */ bool aio_pending(AioContext *ctx); +/* Dispatch any pending callbacks from the GSource attached to the AioContext. + * + * This is used internally in the implementation of the GSource. + */ +bool aio_dispatch(AioContext *ctx); + /* Progress in completing AIO work to occur. This can issue new pending * aio as a result of executing I/O completion or bh callbacks. * @@ -226,7 +239,6 @@ bool aio_pending(AioContext *ctx); */ bool aio_poll(AioContext *ctx, bool blocking); -#ifdef CONFIG_POSIX /* 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 aio_poll(). @@ -239,7 +251,6 @@ void aio_set_fd_handler(AioContext *ctx, IOHandler *io_read, IOHandler *io_write, void *opaque); -#endif /* Register an event notifier and associated callbacks. Behaves very similarly * to event_notifier_set_handler. Unlike event_notifier_set_handler, these callbacks @@ -303,4 +314,12 @@ static inline void aio_timer_init(AioContext *ctx, timer_init(ts, ctx->tlg.tl[type], scale, cb, opaque); } +/** + * aio_compute_timeout: + * @ctx: the aio context + * + * Compute the timeout that a blocking aio_poll should use. + */ +int64_t aio_compute_timeout(AioContext *ctx); + #endif |