ardour/livetrax
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check for _port_handle == null throughout Port:: methods

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This commit is contained in:
Paul Davis 2014-09-06 12:36:57 -04:00
parent 4a1b6b2e78
commit a686374b9d
1 changed files with 45 additions and 19 deletions
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62
libs/ardour/port.cc
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@ -97,19 +97,25 @@ Port::drop ()
bool
Port::connected () const
{
return (port_engine.connected (_port_handle) != 0);
if (_port_handle) {
return (port_engine.connected (_port_handle) != 0);
}
return false;
}
int
Port::disconnect_all ()
{
port_engine.disconnect_all (_port_handle);
_connections.clear ();
if (_port_handle) {
/* a cheaper, less hacky way to do boost::shared_from_this() ...
*/
boost::shared_ptr<Port> pself = port_manager->get_port_by_name (name());
PostDisconnect (pself, boost::shared_ptr<Port>()); // emit signal
port_engine.disconnect_all (_port_handle);
_connections.clear ();
/* a cheaper, less hacky way to do boost::shared_from_this() ...
*/
boost::shared_ptr<Port> pself = port_manager->get_port_by_name (name());
PostDisconnect (pself, boost::shared_ptr<Port>()); // emit signal
}
return 0;
}
@ -120,6 +126,10 @@ Port::disconnect_all ()
bool
Port::connected_to (std::string const & o) const
{
if (!_port_handle) {
return false;
}
if (!port_engine.available()) {
return false;
}
@ -221,20 +231,26 @@ Port::disconnect (Port* o)
void
Port::request_input_monitoring (bool yn)
{
port_engine.request_input_monitoring (_port_handle, yn);
if (_port_handle) {
port_engine.request_input_monitoring (_port_handle, yn);
}
}
void
Port::ensure_input_monitoring (bool yn)
{
port_engine.ensure_input_monitoring (_port_handle, yn);
if (_port_handle) {
port_engine.ensure_input_monitoring (_port_handle, yn);
}
}
bool
Port::monitoring_input () const
{
return port_engine.monitoring_input (_port_handle);
if (_port_handle) {
return port_engine.monitoring_input (_port_handle);
}
return false;
}
void
@ -268,7 +284,9 @@ Port::set_public_latency_range (LatencyRange& range, bool playback) const
name(), range.min, range.max,
(playback ? "PLAYBACK" : "CAPTURE")));;
port_engine.set_latency_range (_port_handle, playback, range);
if (_port_handle) {
port_engine.set_latency_range (_port_handle, playback, range);
}
}
void
@ -320,12 +338,16 @@ Port::public_latency_range (bool /*playback*/) const
{
LatencyRange r;
r = port_engine.get_latency_range (_port_handle, sends_output() ? true : false);
DEBUG_TRACE (DEBUG::Latency, string_compose (
"GET PORT %1: %4 PUBLIC latency range %2 .. %3\n",
name(), r.min, r.max,
sends_output() ? "PLAYBACK" : "CAPTURE"));
if (_port_handle) {
r = port_engine.get_latency_range (_port_handle, sends_output() ? true : false);
DEBUG_TRACE (DEBUG::Latency, string_compose (
"GET PORT %1: %4 PUBLIC latency range %2 .. %3\n",
name(), r.min, r.max,
sends_output() ? "PLAYBACK" : "CAPTURE"));
}
return r;
}
@ -435,7 +457,7 @@ Port::reconnect ()
int
Port::set_name (std::string const & n)
{
if (n == _name) {
if (n == _name || !_port_handle) {
return 0;
}
@ -453,6 +475,10 @@ Port::set_name (std::string const & n)
bool
Port::physically_connected () const
{
if (!_port_handle) {
return false;
}
return port_engine.physically_connected (_port_handle);
}