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Refactor port change handling part of PA Backend process function into new method

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This commit is contained in:
Tim Mayberry 2015-08-26 22:17:37 +10:00
parent 684701427e
commit 7b23f80b03
2 changed files with 35 additions and 29 deletions
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62
libs/backends/portaudio/portaudio_backend.cc
View file

@ -1601,35 +1601,7 @@ PortAudioBackend::main_blocking_process_thread ()
Glib::usleep (100); // don't hog cpu Glib::usleep (100); // don't hog cpu
} }
bool connections_changed = false; process_port_connection_changes();
bool ports_changed = false;
if (!pthread_mutex_trylock (&_port_callback_mutex)) {
if (_port_change_flag) {
ports_changed = true;
_port_change_flag = false;
}
if (!_port_connection_queue.empty ()) {
connections_changed = true;
}
while (!_port_connection_queue.empty ()) {
PortConnectData *c = _port_connection_queue.back ();
manager.connect_callback (c->a, c->b, c->c);
_port_connection_queue.pop_back ();
delete c;
}
pthread_mutex_unlock (&_port_callback_mutex);
}
if (ports_changed) {
manager.registration_callback();
}
if (connections_changed) {
manager.graph_order_callback();
}
if (connections_changed || ports_changed) {
engine.latency_callback(false);
engine.latency_callback(true);
}
} }
_pcmio->close_stream(); _pcmio->close_stream();
_active = false; _active = false;
@ -1644,6 +1616,38 @@ PortAudioBackend::main_blocking_process_thread ()
return 0; return 0;
} }
void
PortAudioBackend::process_port_connection_changes ()
{
bool connections_changed = false;
bool ports_changed = false;
if (!pthread_mutex_trylock (&_port_callback_mutex)) {
if (_port_change_flag) {
ports_changed = true;
_port_change_flag = false;
}
if (!_port_connection_queue.empty ()) {
connections_changed = true;
}
while (!_port_connection_queue.empty ()) {
PortConnectData *c = _port_connection_queue.back ();
manager.connect_callback (c->a, c->b, c->c);
_port_connection_queue.pop_back ();
delete c;
}
pthread_mutex_unlock (&_port_callback_mutex);
}
if (ports_changed) {
manager.registration_callback();
}
if (connections_changed) {
manager.graph_order_callback();
}
if (connections_changed || ports_changed) {
engine.latency_callback(false);
engine.latency_callback(true);
}
}
/******************************************************************************/ /******************************************************************************/

2
libs/backends/portaudio/portaudio_backend.h
View file

@ -323,6 +323,8 @@ class PortAudioBackend : public AudioBackend {
bool start_blocking_process_thread (); bool start_blocking_process_thread ();
bool stop_blocking_process_thread (); bool stop_blocking_process_thread ();
void process_port_connection_changes ();
private: private:
std::string _instance_name; std::string _instance_name;
PortAudioIO *_pcmio; PortAudioIO *_pcmio;