diff options
| author | Paolo Bonzini | 2014-07-09 11:53:08 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi | 2014-08-29 11:46:58 +0200 |
| commit | a3462c656128e7b900ccc5d436f9e858d07de264 (patch) | |
| tree | f0a5ba8f06d80bbf14fb27466af9d3126b45c4e9 /include | |
| parent | aio-win32: add aio_set_dispatching optimization (diff) | |
| download | qemu-a3462c656128e7b900ccc5d436f9e858d07de264.tar.gz qemu-a3462c656128e7b900ccc5d436f9e858d07de264.tar.xz qemu-a3462c656128e7b900ccc5d436f9e858d07de264.zip | |
AioContext: introduce aio_prepare
This will be used to implement socket polling on Windows.
On Windows, select() and g_poll() are completely different;
sockets are polled with select() before calling g_poll,
and the g_poll must be nonblocking if select() says a
socket is ready.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/aio.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/block/aio.h b/include/block/aio.h index 7ba3e9675b..ef4197b861 100644 --- a/include/block/aio.h +++ b/include/block/aio.h @@ -205,7 +205,14 @@ 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. */ |