Graph::Graph (Session & session)
: SessionHandleRef (session)
+ , _execution_sem ("graph_execution", 0)
+ , _callback_start_sem ("graph_start", 0)
+ , _callback_done_sem ("graph_done", 0)
+ , _cleanup_sem ("graph_cleanup", 0)
{
pthread_mutex_init( &_trigger_mutex, NULL);
- sem_init( &_execution_sem, 0, 0 );
-
- sem_init( &_callback_start_sem, 0, 0 );
- sem_init( &_callback_done_sem, 0, 0 );
- sem_init( &_cleanup_sem, 0, 0 );
_execution_tokens = 0;
_quit_threads = true;
for (unsigned int i=0; i<_thread_list.size(); i++) {
- sem_post( &_execution_sem);
+ _execution_sem.signal ();
}
- sem_post( &_callback_start_sem);
+ _callback_start_sem.signal ();
for (list<pthread_t>::iterator i = _thread_list.begin(); i != _thread_list.end(); i++) {
void* status;
// we are through. wakeup our caller.
again:
- sem_post( &_callback_done_sem);
+ _callback_done_sem.signal ();
// block until we are triggered.
- sem_wait( &_callback_start_sem);
+ _callback_start_sem.wait();
if (_quit_threads)
return;
_execution_tokens -= wakeup;
for (int i=0; i<wakeup; i++ ) {
- sem_post (&_execution_sem);
+ _execution_sem.signal ();
}
while (to_run == 0) {
_execution_tokens += 1;
pthread_mutex_unlock (&_trigger_mutex);
DEBUG_TRACE (DEBUG::ProcessThreads, string_compose ("%1 goes to sleep\n", pthread_self()));
- sem_wait (&_execution_sem);
+ _execution_sem.wait ();
if (_quit_threads)
return true;
DEBUG_TRACE (DEBUG::ProcessThreads, string_compose ("%1 is awake\n", pthread_self()));
get_rt();
again:
- sem_wait (&_callback_start_sem);
-
+ _callback_start_sem.wait ();
+ DEBUG_TRACE(DEBUG::Graph, "main thread is awake\n");
this->prep();
if (_graph_empty && !_quit_threads) {
- sem_post (&_callback_done_sem);
+ _callback_done_sem.signal ();
goto again;
}
while (1) {
+ DEBUG_TRACE(DEBUG::Graph, "main thread runs one graph node\n");
if (run_one()) {
break;
}
}
int
-Graph::silent_process_routes (nframes_t nframes, framepos_t start_frame, framepos_t end_frame,
+Graph::silent_process_routes (pframes_t nframes, framepos_t start_frame, framepos_t end_frame,
bool can_record, bool rec_monitors_input, bool& need_butler)
{
_process_nframes = nframes;
_process_need_butler = false;
if (!_graph_empty) {
- sem_post (&_callback_start_sem);
- sem_wait (&_callback_done_sem);
+ DEBUG_TRACE(DEBUG::Graph, "wake graph for silent process\n");
+ _callback_start_sem.signal ();
+ _callback_done_sem.wait ();
}
need_butler = _process_need_butler;
}
int
-Graph::process_routes (nframes_t nframes, framepos_t start_frame, framepos_t end_frame, int declick,
+Graph::process_routes (pframes_t nframes, framepos_t start_frame, framepos_t end_frame, int declick,
bool can_record, bool rec_monitors_input, bool& need_butler)
{
+ DEBUG_TRACE (DEBUG::Graph, string_compose ("graph execution from %1 to %2 = %3\n", start_frame, end_frame, nframes));
+
_process_nframes = nframes;
_process_start_frame = start_frame;
_process_end_frame = end_frame;
_process_retval = 0;
_process_need_butler = false;
- sem_post (&_callback_start_sem);
- sem_wait (&_callback_done_sem);
+ DEBUG_TRACE(DEBUG::Graph, "wake graph for non-silent process\n");
+ _callback_start_sem.signal ();
+ _callback_done_sem.wait ();
+
+ DEBUG_TRACE (DEBUG::Graph, "graph execution complete\n");
need_butler = _process_need_butler;
}
int
-Graph::routes_no_roll (nframes_t nframes, framepos_t start_frame, framepos_t end_frame,
+Graph::routes_no_roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame,
bool non_rt_pending, bool can_record, int declick)
{
+ DEBUG_TRACE (DEBUG::Graph, string_compose ("no-roll graph execution from %1 to %2 = %3\n", start_frame, end_frame, nframes));
+
_process_nframes = nframes;
_process_start_frame = start_frame;
_process_end_frame = end_frame;
_process_retval = 0;
_process_need_butler = false;
- sem_post (&_callback_start_sem);
- sem_wait (&_callback_done_sem);
+ DEBUG_TRACE(DEBUG::Graph, "wake graph for no-roll process\n");
+ _callback_start_sem.signal ();
+ _callback_done_sem.wait ();
return _process_retval;
}