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| author | Max Horn | 2002-11-10 14:49:49 +0000 |
|---|---|---|
| committer | Max Horn | 2002-11-10 14:49:49 +0000 |
| commit | 54aa3f898d93813a5a6ff41cc0832c4c635165d4 (patch) | |
| tree | d96006be4a77ead3f6d148334d83cdd301dfa188 /scumm/imuse.cpp | |
| parent | 08c80c4e98795f4654c864c939ed96ca5a1e9561 (diff) | |
| download | scummvm-rg350-54aa3f898d93813a5a6ff41cc0832c4c635165d4.tar.gz scummvm-rg350-54aa3f898d93813a5a6ff41cc0832c4c635165d4.tar.bz2 scummvm-rg350-54aa3f898d93813a5a6ff41cc0832c4c635165d4.zip | |
fixed two race conditions
svn-id: r5490
Diffstat (limited to 'scumm/imuse.cpp')
| -rw-r--r-- | scumm/imuse.cpp | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/scumm/imuse.cpp b/scumm/imuse.cpp index 6faa6c31d6..e02124365b 100644 --- a/scumm/imuse.cpp +++ b/scumm/imuse.cpp @@ -4793,8 +4793,12 @@ void IMuseGM::part_key_off(Part *part, byte note) #if !defined(__MORPHOS__) int IMuseGM::midi_driver_thread(void *param) { - IMuseGM *mid = (IMuseGM *) param; + IMuseGM *mid = (IMuseGM *)param; int old_time, cur_time; + + // Avoid race condition + if (NULL == g_scumm->_imuse); + return 0; old_time = mid->_system->get_msecs(); @@ -4804,7 +4808,8 @@ int IMuseGM::midi_driver_thread(void *param) cur_time = mid->_system->get_msecs(); while (old_time < cur_time) { old_time += 10; - //mid->_se->on_timer(); + // We can't use this here: mid->_se->on_timer() according to Jamieson630, + // because we have to go through the IMuseMonitor... g_scumm->_imuse->on_timer(); } } @@ -5043,8 +5048,10 @@ IMuse *IMuse::create(OSystem *syst, MidiDriver *midi, SoundMixer *mixer) * IMUSE Digital Implementation, for SCUMM v7 and higher. */ -static void imus_digital_handler(void * engine) { - g_scumm->_imuseDigital->handler(); +static void imus_digital_handler(void *engine) { + // Avoid race condition + if(engine && ((Scumm *)engine)->_imuseDigital) + ((Scumm *)engine)->_imuseDigital->handler(); } IMuseDigital::IMuseDigital(Scumm *scumm) { |