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| author | Paolo Bonzini <pbonzini@redhat.com> | 2012-09-24 14:57:22 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2012-10-30 09:30:53 +0100 |
| commit | cd9ba1ebcf0439457f22b75b38533f6634f23c5f (patch) | |
| tree | e7af1d5a5aa7816810a3f44fde0e6d025c10f282 /qemu-aio.h | |
| parent | 7c0628b20e7c56b7e04abb8b5f8d7da3f7cb87e8 (diff) | |
| download | qemu-cd9ba1ebcf0439457f22b75b38533f6634f23c5f.tar.gz | |
aio: prepare for introducing GSource-based dispatch
This adds a GPollFD to each AioHandler. It will then be possible to
attach these GPollFDs to a GSource, and from there to the main loop.
aio_wait examines the GPollFDs and avoids calling select() if any
is set (similar to what it does if bottom halves are available).
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'qemu-aio.h')
| -rw-r--r-- | qemu-aio.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/qemu-aio.h b/qemu-aio.h index f19201e7ca..ac248962fe 100644 --- a/qemu-aio.h +++ b/qemu-aio.h @@ -133,6 +133,13 @@ void qemu_bh_delete(QEMUBH *bh); * outstanding AIO operations have been completed or cancelled. */ void aio_flush(AioContext *ctx); +/* Return whether there are any pending callbacks from the GSource + * attached to the AioContext. + * + * This is used internally in the implementation of the GSource. + */ +bool aio_pending(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. * |