jack: reduced sleep time to 1ms

When waiting for free space in the ring buffer, the JACK plugin sleeped 10ms until there is enough space. This delay was too large for low-latency setups (<10ms), and created a lot of xruns. Work around that by reducing the sleep time to 1ms. A proper solution for this would be to use an event based approach, and we will do it, just not now.

jack: reduced sleep time to 1ms
a7326696 · Max Kellermann · 1e0ceb3d · a7326696 · a7326696
Commit a7326696 authored Jan 29, 2009 by Max Kellermann
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NEWS NEWS +1 -0

jack_plugin.c src/output/jack_plugin.c +1 -1

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--- a/NEWS
+++ b/NEWS
@@ -37,6 +37,7 @@ ver 0.14.2 (2009/??/??)
 * audio outputs:
  - jack: allocate ring buffers before connecting
  - jack: clear "shutdown" flag on reconnect
+  - jack: reduced sleep time to 1ms


 ver 0.14.1 (2009/01/17)

--- a/src/output/jack_plugin.c
+++ b/src/output/jack_plugin.c
@@ -421,7 +421,7 @@ mpd_jack_play(void *data, const char *buff, size_t size)
 		} else {
 			/* XXX do something more intelligent to
 			   synchronize */
-			my_usleep(10000);
+			my_usleep(1000);
 		}

 	}