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| author | Max Kellermann <max@duempel.org> | 2014-01-14 09:59:04 +0100 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2014-01-14 09:59:04 +0100 |
| commit | 4734af747b3f7c4560cbf7757f4d857445382f01 (patch) | |
| tree | a6c7a68994f7eddcc8f05bc808c39ae5f133f86f | |
| parent | 5d17731b73bf485f8536fb6284ab32cdbb4789b0 (diff) | |
| download | mpd-4734af747b3f7c4560cbf7757f4d857445382f01.tar.gz mpd-4734af747b3f7c4560cbf7757f4d857445382f01.tar.xz mpd-4734af747b3f7c4560cbf7757f4d857445382f01.zip | |
OutputThread: use real-time priority
| -rw-r--r-- | NEWS | 1 | ||||
| -rw-r--r-- | src/OutputThread.cxx | 3 | ||||
| -rw-r--r-- | src/thread/Util.hxx | 13 |
3 files changed, 17 insertions, 0 deletions
@@ -18,6 +18,7 @@ ver 0.19 (not yet released) - shine: new encoder plugin * new resampler option using libsoxr * the update thread runs at "idle" priority +* the output thread runs at "real-time" priority ver 0.18.7 (2013/01/13) * playlist diff --git a/src/OutputThread.cxx b/src/OutputThread.cxx index 1b5a44e9d..b56e7f1ca 100644 --- a/src/OutputThread.cxx +++ b/src/OutputThread.cxx @@ -30,6 +30,7 @@ #include "PlayerControl.hxx" #include "MusicPipe.hxx" #include "MusicChunk.hxx" +#include "thread/Util.hxx" #include "system/FatalError.hxx" #include "util/Error.hxx" #include "Log.hxx" @@ -578,6 +579,8 @@ audio_output_task(void *arg) { struct audio_output *ao = (struct audio_output *)arg; + SetThreadRealtime(); + ao->mutex.lock(); while (1) { diff --git a/src/thread/Util.hxx b/src/thread/Util.hxx index fe36468c3..c09fef532 100644 --- a/src/thread/Util.hxx +++ b/src/thread/Util.hxx @@ -69,4 +69,17 @@ SetThreadIdlePriority() #endif }; +/** + * Raise the current thread's priority to "real-time" (very high). + */ +static inline void +SetThreadRealtime() +{ +#ifdef __linux__ + struct sched_param sched_param; + sched_param.sched_priority = 50; + sched_setscheduler(0, SCHED_FIFO, &sched_param); +#endif +}; + #endif |