xf86-video-ati: Branch 'master'
Michel Dänzer
daenzer at kemper.freedesktop.org
Wed Dec 14 02:57:16 UTC 2016
src/drmmode_display.c | 22 +++++++++++++++++++---
1 file changed, 19 insertions(+), 3 deletions(-)
New commits:
commit 404c64752774d23a2db9aa3134f6ada3155708c9
Author: jimqu <Jim.Qu at amd.com>
Date: Wed Dec 14 11:46:16 2016 +0900
udev_monitor_receive_device() will block when hotplug monitor
udev_monitor_receive_device() will block and wait for the event of udev
use select() to ensure that this will not block.
Signed-off-by: JimQu <Jim.Qu at amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer at amd.com>
(Cherry picked from amdgpu commit 732cf4d3a248b288532ad0f3443da49e08dc7507)
diff --git a/src/drmmode_display.c b/src/drmmode_display.c
index e02a6f5..b183a20 100644
--- a/src/drmmode_display.c
+++ b/src/drmmode_display.c
@@ -2717,10 +2717,26 @@ drmmode_handle_uevents(int fd, void *closure)
ScrnInfoPtr scrn = drmmode->scrn;
struct udev_device *dev;
Bool received = FALSE;
+ struct timeval tv;
+ fd_set readfd;
+ int ret;
+
+ FD_ZERO(&readfd);
+ FD_SET(fd, &readfd);
+ tv.tv_sec = 0;
+ tv.tv_usec = 0;
- while ((dev = udev_monitor_receive_device(drmmode->uevent_monitor))) {
- udev_device_unref(dev);
- received = TRUE;
+ while (1) {
+ ret = select(fd + 1, &readfd, NULL, NULL, &tv);
+ /* Check if our file descriptor has received data. */
+ if (!(ret > 0 && FD_ISSET(fd, &readfd)))
+ break;
+ /* Make the call to receive device. select() ensured that this will not be blocked. */
+ dev = udev_monitor_receive_device(drmmode->uevent_monitor);
+ if (dev) {
+ udev_device_unref(dev);
+ received = TRUE;
+ }
}
if (received)
More information about the xorg-commit
mailing list