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authorRobin Gareus <robin@gareus.org>2015-12-09 11:12:56 +0100
committerRobin Gareus <robin@gareus.org>2015-12-09 11:13:18 +0100
commit8bfa7d95c1dd0ba7707095674ab97fa56a960776 (patch)
tree7cf93e40ab78b99a6f65a0b8a36e89c3f91a6f3b /libs/ardour/audioengine.cc
parent548989fc75ba08912efe2bc48d24af5eb95c790d (diff)
fix/workaround OSX "No Memory Pool"
fixes issue on MacBookPro11,1 OSX 10.10 * Coreaudio: internal speaker + internal Mic * start recording * plug-in headphone * stop recording -> crash process_callback -> [..] stop_transport -> no RT memory pool for realtime event.
Diffstat (limited to 'libs/ardour/audioengine.cc')
-rw-r--r--libs/ardour/audioengine.cc20
1 files changed, 20 insertions, 0 deletions
diff --git a/libs/ardour/audioengine.cc b/libs/ardour/audioengine.cc
index a87a5ee7d0..84227708ed 100644
--- a/libs/ardour/audioengine.cc
+++ b/libs/ardour/audioengine.cc
@@ -215,6 +215,26 @@ AudioEngine::process_callback (pframes_t nframes)
return 0;
}
+ /* The coreaudio-backend calls thread_init_callback() if
+ * the hardware changes or pthread_self() changes.
+ *
+ * However there are cases when neither holds true, yet
+ * the thread-pool changes: e.g. connect a headphone to
+ * a shared mic/headphone jack.
+ * It's probably related to, or caused by clocksource changes.
+ *
+ * For reasons yet unknown Glib::Threads::Private() can
+ * use a different thread-private in the same pthread
+ * (coreaudio render callback).
+ *
+ * Coreaudio must set something which influences
+ * pthread_key_t uniqness or reset the key using
+ * pthread_getspecific().
+ */
+ if (! SessionEvent::has_per_thread_pool ()) {
+ thread_init_callback (NULL);
+ }
+
bool return_after_remove_check = false;
if (_measuring_latency == MeasureAudio && _mtdm) {