[pulseaudio-discuss] [PATCH] pactl: Flush stdout buffer when printing subscribe events.

Nikolay Amiantov nikoamia at gmail.com
Sun May 5 04:22:53 PDT 2013

"pactl subscribe" is running continuously, and without flushing its output is
not usable for "process-on-arrival" per-line tasks, such as grepping. This
patch should fix this. For example, now:
pactl subscribe | grep 'server'
should print only server events as they arrive.

This is my first ever patch to a public mailing list and I'm a novice, so please
feel free to tell me if I did something the wrong way.

 src/utils/pactl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/utils/pactl.c b/src/utils/pactl.c
index 0fb62cb..3b6770f 100644
--- a/src/utils/pactl.c
+++ b/src/utils/pactl.c
@@ -1169,6 +1169,7 @@ static void context_subscribe_callback(pa_context *c, pa_subscription_event_type
+    fflush(stdout);
 static void context_state_callback(pa_context *c, void *userdata) {

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