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crude but apparently working fix for issues with JACK port deletion at session shutdown

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git-svn-id: svn://localhost/ardour2/branches/3.0@9382 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Paul Davis 2011-04-19 16:54:18 +00:00
parent fdb3cb7911
commit 7035a21057
2 changed files with 66 additions and 36 deletions
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6
libs/ardour/ardour/audioengine.h
View File

@ -286,14 +286,14 @@ _ the regular process() call to session->process() is not made.
boost::function<int(framecnt_t)> freewheel_action;
bool reconnect_on_halt;
int _usecs_per_cycle;
bool port_remove_in_progress;
SerializedRCUManager<Ports> ports;
Port *register_port (DataType type, const std::string& portname, bool input);
Port* register_port (DataType type, const std::string& portname, bool input);
int process_callback (pframes_t nframes);
void* process_thread ();
void finish_process_cycle (int status);
void remove_all_ports ();
ChanCount n_physical (unsigned long) const;
@ -337,7 +337,7 @@ _ the regular process() call to session->process() is not made.
Glib::Thread* m_meter_thread;
static gint m_meter_exit;
ProcessThread* _main_thread;
struct ThreadData {

96
libs/ardour/audioengine.cc
View File

@ -86,6 +86,7 @@ AudioEngine::AudioEngine (string client_name, string session_uuid)
_buffer_size = 0;
_freewheeling = false;
_main_thread = 0;
port_remove_in_progress = false;
m_meter_thread = 0;
g_atomic_int_set (&m_meter_exit, 0);
@ -170,18 +171,18 @@ AudioEngine::set_jack_callbacks ()
} else {
jack_on_shutdown (_priv_jack, halted, this);
}
jack_set_graph_order_callback (_priv_jack, _graph_order_callback, this);
jack_set_thread_init_callback (_priv_jack, _thread_init_callback, this);
jack_set_process_thread (_priv_jack, _process_thread, this);
jack_set_sample_rate_callback (_priv_jack, _sample_rate_callback, this);
jack_set_buffer_size_callback (_priv_jack, _bufsize_callback, this);
jack_set_graph_order_callback (_priv_jack, _graph_order_callback, this);
jack_set_port_registration_callback (_priv_jack, _registration_callback, this);
jack_set_port_connect_callback (_priv_jack, _connect_callback, this);
jack_set_xrun_callback (_priv_jack, _xrun_callback, this);
jack_set_sync_callback (_priv_jack, _jack_sync_callback, this);
jack_set_freewheel_callback (_priv_jack, _freewheel_callback, this);
jack_set_port_registration_callback (_priv_jack, _registration_callback, this);
jack_set_port_connect_callback (_priv_jack, _connect_callback, this);
if (_session && _session->config.get_jack_time_master()) {
jack_set_timebase_callback (_priv_jack, 0, _jack_timebase_callback, this);
}
@ -194,7 +195,7 @@ AudioEngine::set_jack_callbacks ()
if (jack_set_latency_callback) {
jack_set_latency_callback (_priv_jack, _latency_callback, this);
}
jack_set_error_function (ardour_jack_error);
}
@ -352,7 +353,10 @@ int
AudioEngine::_graph_order_callback (void *arg)
{
AudioEngine* ae = static_cast<AudioEngine*> (arg);
if (ae->connected()) {
if (ae->port_remove_in_progress) {
cerr << "skip reorder callback - PRiP\n";
}
if (ae->connected() && !ae->port_remove_in_progress) {
ae->GraphReordered (); /* EMIT SIGNAL */
}
return 0;
@ -385,7 +389,13 @@ void
AudioEngine::_registration_callback (jack_port_id_t /*id*/, int /*reg*/, void* arg)
{
AudioEngine* ae = static_cast<AudioEngine*> (arg);
ae->PortRegisteredOrUnregistered (); /* EMIT SIGNAL */
if (ae->port_remove_in_progress) {
cerr << "skip registration callback - PRiP\n";
}
if (!ae->port_remove_in_progress) {
ae->PortRegisteredOrUnregistered (); /* EMIT SIGNAL */
}
}
void
@ -399,6 +409,11 @@ AudioEngine::_connect_callback (jack_port_id_t id_a, jack_port_id_t id_b, int co
{
AudioEngine* ae = static_cast<AudioEngine*> (arg);
if (ae->port_remove_in_progress) {
cerr << "skip connect callback - PRiP\n";
return;
}
GET_PRIVATE_JACK_POINTER (ae->_jack);
jack_port_t* jack_port_a = jack_port_by_id (_priv_jack, id_a);
@ -437,13 +452,6 @@ AudioEngine::split_cycle (pframes_t offset)
}
}
void
AudioEngine::finish_process_cycle (int /* status*/ )
{
GET_PRIVATE_JACK_POINTER(_jack);
jack_cycle_signal (_jack, 0);
}
void*
AudioEngine::process_thread ()
{
@ -456,14 +464,15 @@ AudioEngine::process_thread ()
while (1) {
GET_PRIVATE_JACK_POINTER_RET(_jack,0);
pframes_t nframes = jack_cycle_wait (_jack);
pframes_t nframes = jack_cycle_wait (_priv_jack);
if (process_callback (nframes)) {
cerr << "--- process\n";
return 0;
}
finish_process_cycle (0);
jack_cycle_signal (_priv_jack, 0);
}
return 0;
@ -668,10 +677,14 @@ AudioEngine::jack_bufsize_callback (pframes_t nframes)
_raw_buffer_sizes[DataType::MIDI] = nframes * 4 - (nframes/2);
}
boost::shared_ptr<Ports> p = ports.reader();
for (Ports::iterator i = p->begin(); i != p->end(); ++i) {
(*i)->reset();
{
Glib::Mutex::Lock lm (_process_lock);
boost::shared_ptr<Ports> p = ports.reader();
for (Ports::iterator i = p->begin(); i != p->end(); ++i) {
(*i)->reset();
}
}
if (_session) {
@ -719,7 +732,7 @@ void
AudioEngine::set_session (Session *s)
{
Glib::Mutex::Lock pl (_process_lock);
SessionHandlePtr::set_session (s);
if (_session) {
@ -751,7 +764,7 @@ AudioEngine::set_session (Session *s)
(*i)->cycle_end (blocksize);
}
}
}
}
void
AudioEngine::remove_session ()
@ -795,10 +808,10 @@ AudioEngine::port_registration_failure (const std::string& portname)
throw PortRegistrationFailure (string_compose (_("AudioEngine: cannot register port \"%1\": %2"), portname, reason).c_str());
}
Port *
Port*
AudioEngine::register_port (DataType dtype, const string& portname, bool input)
{
Port* newport = 0;
Port* newport;
try {
if (dtype == DataType::AUDIO) {
@ -995,10 +1008,10 @@ AudioEngine::frames_per_cycle () const
}
/** @param name Full or short name of port
* @return Corresponding Port*, or 0. This object remains the property of the AudioEngine
* @return Corresponding Port* or 0. This object remains the property of the AudioEngine
* so must not be deleted.
*/
Port *
Port*
AudioEngine::get_port_by_name (const string& portname)
{
if (!_running) {
@ -1260,22 +1273,39 @@ AudioEngine::freewheel (bool onoff)
void
AudioEngine::remove_all_ports ()
{
/* process lock MUST be held */
/* make sure that JACK callbacks that will be invoked as we cleanup
* ports know that they have nothing to do.
*/
port_remove_in_progress = true;
/* process lock MUST be held by caller
*/
vector<Port*> to_be_deleted;
{
RCUWriter<Ports> writer (ports);
boost::shared_ptr<Ports> ps = writer.get_copy ();
for (Ports::iterator i = ps->begin(); i != ps->end(); ++i) {
delete *i;
to_be_deleted.push_back (*i);
}
ps->clear ();
}
/* clear dead wood list too */
/* clear dead wood list in RCU */
ports.flush ();
/* now do the actual deletion, given that "ports" is now empty, thus
preventing anyone else from getting a handle on a Port
*/
for (vector<Port*>::iterator p = to_be_deleted.begin(); p != to_be_deleted.end(); ++p) {
delete *p;
}
port_remove_in_progress = false;
}
int
@ -1386,7 +1416,7 @@ AudioEngine::reconnect_to_jack ()
}
last_monitor_check = 0;
set_jack_callbacks ();
if (jack_activate (_priv_jack) == 0) {