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fix condition-variable race caused by not holding the request lock when signalling the var

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This commit is contained in:
Paul Davis 2021-06-13 18:35:09 -06:00
parent 21f4598395
commit c15e6fd7db
1 changed files with 3 additions and 0 deletions
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3
libs/ardour/butler.cc
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@ -225,6 +225,8 @@ Butler::thread_work ()
so do not bother with buffer refills at this
time.
*/
std::cerr << "new locate detected in restart, lock and signal\n";
Glib::Threads::Mutex::Lock lm (request_lock);
DEBUG_TRACE (DEBUG::Butler, string_compose ("\tlocate pending, so just pause @ %1 till woken again\n", g_get_monotonic_time()));
paused.signal ();
continue;
@ -474,6 +476,7 @@ Butler::wait_until_finished ()
DEBUG_TRACE (DEBUG::Butler, string_compose ("%1: waiting for butler to finish @ %2\n", DEBUG_THREAD_SELF, g_get_monotonic_time()));
queue_request (Request::Pause);
paused.wait(request_lock);
std::cerr << "wait till finished is back\n";
}
bool