Merge branch 'g-wakeup-eintr-check' into 'main'

wakeup: Fix g_wakeup_acknowledge if signal comes in

See merge request GNOME/glib!3624
This commit is contained in:
Philip Withnall 2023-10-05 16:53:54 +00:00
commit e93e1cb547

View File

@ -207,20 +207,25 @@ g_wakeup_get_pollfd (GWakeup *wakeup,
void
g_wakeup_acknowledge (GWakeup *wakeup)
{
/* read until it is empty */
int res;
if (wakeup->fds[1] == -1)
{
uint64_t value;
/* eventfd() read resets counter */
read (wakeup->fds[0], &value, sizeof (value));
do
res = read (wakeup->fds[0], &value, sizeof (value));
while (G_UNLIKELY (res == -1 && errno == EINTR));
}
else
{
uint8_t value;
while (read (wakeup->fds[0], &value, sizeof (value)) == sizeof (value));
/* read until it is empty */
do
res = read (wakeup->fds[0], &value, sizeof (value));
while (res == sizeof (value) || G_UNLIKELY (res == -1 && errno == EINTR));
}
}