diff options
author | Carl Hetherington <carl@carlh.net> | 2009-12-01 19:08:59 +0000 |
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committer | Carl Hetherington <carl@carlh.net> | 2009-12-01 19:08:59 +0000 |
commit | 66ee16d7c867fc6243721a774602f19987409958 (patch) | |
tree | a35521aabfc045e93bc63070fbb2d93d61013b7c /libs/ardour/ticker.cc | |
parent | 7eb3cb0bed268d976197ea895b2cffc7ddfde6b5 (diff) |
Prevent some segfaults when trying to send MTC when there is no port to send it to.
git-svn-id: svn://localhost/ardour2/branches/3.0@6257 d708f5d6-7413-0410-9779-e7cbd77b26cf
Diffstat (limited to 'libs/ardour/ticker.cc')
-rw-r--r-- | libs/ardour/ticker.cc | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/libs/ardour/ticker.cc b/libs/ardour/ticker.cc index 97e44ebf7b..7f7ca32907 100644 --- a/libs/ardour/ticker.cc +++ b/libs/ardour/ticker.cc @@ -181,6 +181,10 @@ double MidiClockTicker::one_ppqn_in_frames(nframes_t transport_position) void MidiClockTicker::send_midi_clock_event(nframes_t offset) { + if (!_midi_port) { + return; + } + #ifdef WITH_JACK_MIDI assert (MIDI::JACK_MidiPort::is_process_thread()); #endif // WITH_JACK_MIDI @@ -193,18 +197,30 @@ void MidiClockTicker::send_midi_clock_event(nframes_t offset) void MidiClockTicker::send_start_event(nframes_t offset) { + if (!_midi_port) { + return; + } + static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_START }; _midi_port->write(_midi_clock_tick, 1, offset); } void MidiClockTicker::send_continue_event(nframes_t offset) { + if (!_midi_port) { + return; + } + static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_CONTINUE }; _midi_port->write(_midi_clock_tick, 1, offset); } void MidiClockTicker::send_stop_event(nframes_t offset) { + if (!_midi_port) { + return; + } + static uint8_t _midi_clock_tick[1] = { MIDI_CMD_COMMON_STOP }; _midi_port->write(_midi_clock_tick, 1, offset); } |