diff options
| author | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-09-10 15:45:19 +0000 |
|---|---|---|
| committer | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-09-10 15:45:19 +0000 |
| commit | baf35cb90204d75404892aa4e52628ae7a00669b (patch) | |
| tree | 44d96418e4d0e90c5841692a29743022fbc107c1 /block-raw-win32.c | |
| parent | 279826619dfb36bac39d8549526a76eabb9d311e (diff) | |
| download | qemu-baf35cb90204d75404892aa4e52628ae7a00669b.tar.gz qemu-baf35cb90204d75404892aa4e52628ae7a00669b.tar.bz2 qemu-baf35cb90204d75404892aa4e52628ae7a00669b.zip | |
Use signalfd() to work around signal/select race
This patch introduces signalfd() to work around the signal/select race in
checking for AIO completions. For platforms that don't support signalfd(), we
emulate it with threads.
There was a long discussion about this approach. I don't believe there are any
fundamental problems with this approach and I believe eliminating the use of
signals is a good thing.
I've tested Windows and Linux using Windows and Linux guests. I've also checked
for disk IO performance regressions.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5187 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'block-raw-win32.c')
| -rw-r--r-- | block-raw-win32.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/block-raw-win32.c b/block-raw-win32.c index 43d3f6c4c2..7b88dcf482 100644 --- a/block-raw-win32.c +++ b/block-raw-win32.c @@ -350,18 +350,10 @@ void qemu_aio_init(void) { } -void qemu_aio_poll(void) -{ -} - void qemu_aio_flush(void) { } -void qemu_aio_wait_start(void) -{ -} - void qemu_aio_wait(void) { #ifndef QEMU_IMG @@ -369,10 +361,6 @@ void qemu_aio_wait(void) #endif } -void qemu_aio_wait_end(void) -{ -} - BlockDriver bdrv_raw = { "raw", sizeof(BDRVRawState), |