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Fix session-event queue (multiple writer, single reader)

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The reading is done in rt-process thread, but multiple UIs (surfaces,
GUI) can produce events to be queued.
This commit is contained in:
Robin Gareus 2017-07-04 20:44:33 +02:00
parent c4578db595
commit cd30a29691
2 changed files with 3 additions and 0 deletions
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2
libs/ardour/ardour/session_event.h
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@ -167,6 +167,8 @@ protected:
Events immediate_events;
Events::iterator next_event;
Glib::Threads::Mutex rb_write_lock;
/* there can only ever be one of each of these */
SessionEvent *auto_loop_event;

1
libs/ardour/session_process.cc
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@ -1033,6 +1033,7 @@ Session::queue_event (SessionEvent* ev)
} else if (_state_of_the_state & Loading) {
merge_event (ev);
} else {
Glib::Threads::Mutex::Lock lm (rb_write_lock);
pending_events.write (&ev, 1);
}
}