From: Zev Weiss <zev@bewilderbeest.net>
To: alsa-devel@alsa-project.org
Cc: Zev Weiss <zev@bewilderbeest.net>
Subject: [alsa-devel] [PATCH] alsactl: don't exit on EINTR from epoll_wait().
Date: Mon, 14 Oct 2019 23:36:50 -0500 [thread overview]
Message-ID: <20191015043650.23536-1-zev@bewilderbeest.net> (raw)
Previously, things like attaching strace to a running 'alsactl monitor'
process would cause it to exit.
Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
---
alsactl/monitor.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/alsactl/monitor.c b/alsactl/monitor.c
index 6b090e4f5c92..cf4167bee165 100644
--- a/alsactl/monitor.c
+++ b/alsactl/monitor.c
@@ -342,6 +342,8 @@ static int run_dispatcher(int epfd, int sigfd, int infd, struct list_head *srcs,
count = epoll_wait(epfd, epev, max_ev_count, 200);
if (count < 0) {
+ if (errno == EINTR)
+ continue;
err = count;
break;
}
--
2.23.0
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next reply other threads:[~2019-10-17 6:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-15 4:36 Zev Weiss [this message]
2020-04-12 2:15 ` [PATCH] alsactl: don't exit on EINTR from epoll_wait() Takashi Sakamoto
2020-04-14 13:24 ` Jaroslav Kysela
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