On 2016-06-15 11:39, Conor O'Gorman wrote: > On 09/06/16 03:20, Yousong Zhou wrote: >> Fix a race condition when do_sigchld, uloop_cancelled were set just >> before epoll_wait(timeout=-1), resulting the loop stuck in the syscall >> without noticing the events just happened >> >> Signed-off-by: Yousong Zhou <yszhou4t...@gmail.com> >> --- >> uloop-epoll.c | 2 +- >> uloop-kqueue.c | 2 +- >> uloop.c | 65 >> ++++++++++++++++++++++++++++++++++++++++++++++++++++++---- >> 3 files changed, 63 insertions(+), 6 deletions(-) >> > Why not change the timeout? Changing the timeout would not fix the race, and it would lead to unnecessary process wakeups and extra latency for signal processing.
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