int PluginHost::freePlugin(int id, int stackType, pthread_mutex_t *mutex,
Channel *ch)
{
vector <Plugin *> *pStack = getStack(stackType, ch);
for (unsigned i=0; i<pStack->size(); i++) {
Plugin *pPlugin = pStack->at(i);
if (pPlugin->getId() != id)
continue;
if (pPlugin->getStatus() == 0) { // no frills if plugin is missing
delete pPlugin;
pStack->erase(pStack->begin() + i);
gu_log("[pluginHost::freePlugin] plugin id=%d removed with no frills, since it had status=0\n", id);
return i;
}
while (true) {
if (pthread_mutex_trylock(mutex) != 0)
continue;
pPlugin->suspendProcessing(true);
pPlugin->releaseResources();
delete pPlugin;
pStack->erase(pStack->begin() + i);
pthread_mutex_unlock(mutex);
gu_log("[pluginHost::freePlugin] plugin id=%d removed\n", id);
return i;
}
}
gu_log("[pluginHost::freePlugin] plugin id=%d not found\n", id);
return -1;
}
int PluginHost::addPlugin(const char *fname, int stackType, Channel *ch) {
Plugin *p = new Plugin();
bool success = true;
gVector <Plugin *> *pStack;
pStack = getStack(stackType, ch);
if (!p->load(fname)) {
//delete p;
//return 0;
success = false;
}
/* if the load failed we add a 'dead' plugin into the stack. This is
* useful to report a missing plugin. */
if (!success) {
pStack->add(p);
return 0;
}
/* otherwise let's try to initialize it. */
else {
/* try to init the plugin. If fails, delete it and return error. */
if (!p->init(&PluginHost::HostCallback)) {
delete p;
return 0;
}
/* plugin setup */
p->setup(G_Conf.samplerate, kernelAudio::realBufsize);
/* try to add the new plugin until succeed */
int lockStatus;
while (true) {
lockStatus = pthread_mutex_trylock(&G_Mixer.mutex_plugins);
if (lockStatus == 0) {
pStack->add(p);
pthread_mutex_unlock(&G_Mixer.mutex_plugins);
break;
}
}
char name[256]; p->getName(name);
gLog("[pluginHost] plugin id=%d loaded (%s), stack type=%d, stack size=%d\n", p->getId(), name, stackType, pStack->size);
/* p->resume() is suggested. Who knows... */
p->resume();
return 1;
}
}
