ardour/livetrax
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prevent crash when loading midi port info about ports that no longer exist

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This commit is contained in:
Paul Davis 2017-04-18 14:14:17 +01:00
parent 5dce10500c
commit a372fcbe51
1 changed files with 14 additions and 8 deletions
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22
libs/ardour/port_manager.cc
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@ -1207,19 +1207,25 @@ PortManager::fill_midi_port_info_locked ()
for (MidiPortInfo::iterator x = midi_port_info.begin(); x != midi_port_info.end(); ++x) {
PortEngine::PortHandle ph = _backend->get_port_by_name (x->first);
if (!ph) {
/* port info saved from some condition where this port
* existed, but no longer does (i.e. device unplugged
* at present)
*/
continue;
}
if (x->second.pretty_name != x->first) {
/* name set in port info ... propagate */
_backend->set_port_property (ph, "http://jackaudio.org/metadata/pretty-name", x->second.pretty_name, string());
} else {
/* check with backend for pre-existing pretty name */
if (ph) {
string value;
string type;
if (0 == _backend->get_port_property (ph,
"http://jackaudio.org/metadata/pretty-name",
value, type)) {
x->second.pretty_name = value;
}
string value;
string type;
if (0 == _backend->get_port_property (ph,
"http://jackaudio.org/metadata/pretty-name",
value, type)) {
x->second.pretty_name = value;
}
}
}