void SHP_PlugIn::Teardown()
{
// first figure out if this is being done as part of the process being torn down
UInt32 isInitingOrExiting = 0;
UInt32 theSize = sizeof(UInt32);
AudioHardwareGetProperty(kAudioHardwarePropertyIsInitingOrExiting, &theSize, &isInitingOrExiting);
// next figure out if this is the master process
UInt32 isMaster = 0;
theSize = sizeof(UInt32);
AudioHardwareGetProperty(kAudioHardwarePropertyProcessIsMaster, &theSize, &isMaster);
// do the full teardown if this is outside of the process being torn down or this is the master process
if((isInitingOrExiting == 0) || (isMaster != 0))
{
// stop all IO on the device
mDevice->Do_StopAllIOProcs();
// send the necessary IsAlive notifications
CAPropertyAddress theIsAliveAddress(kAudioDevicePropertyDeviceIsAlive);
mDevice->PropertiesChanged(1, &theIsAliveAddress);
// save it's settings if necessary
if(isMaster != 0)
{
HP_DeviceSettings::SaveToPrefs(*mDevice, HP_DeviceSettings::sStandardControlsToSave, HP_DeviceSettings::kStandardNumberControlsToSave);
}
// tell the HAL that the device has gone away
AudioObjectID theObjectID = mDevice->GetObjectID();
#if (MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_4)
OSStatus theError = AudioHardwareDevicesDied(GetInterface(), 1, &theObjectID);
#else
OSStatus theError = AudioObjectsPublishedAndDied(GetInterface(), kAudioObjectSystemObject, 0, NULL, 1, &theObjectID);
#endif
AssertNoError(theError, "SHP_PlugIn::Teardown: got an error telling the HAL a device died");
// remove the object state mutex
HP_Object::SetObjectStateMutexForID(theObjectID, NULL);
// toss it
mDevice->Teardown();
delete mDevice;
mDevice = NULL;
// teardown the super class
HP_HardwarePlugIn::Teardown();
}
else
{
// otherwise, only stop the IOProcs
mDevice->Do_StopAllIOProcs();
// finalize (rather than tear down) the devices
mDevice->Finalize();
// and leave the rest to die with the process
}
}
OSStatus
PA_Stream::PublishObjects(Boolean active)
{
std::vector<AudioStreamID> controlIDs;
controlIDs.clear();
ReportOwnedObjects(controlIDs);
if (controlIDs.size() != 0)
if (active) {
return AudioObjectsPublishedAndDied(plugin->GetInterface(),
GetObjectID(),
controlIDs.size(),
&(controlIDs.front()),
0, NULL);
} else {
return AudioObjectsPublishedAndDied(plugin->GetInterface(),
GetObjectID(),
0, NULL,
controlIDs.size(),
&(controlIDs.front()));
}
return kAudioHardwareNoError;
}
void SHP_PlugIn::InitializeWithObjectID(AudioObjectID inObjectID)
{
// initialize the super class
HP_HardwarePlugIn::InitializeWithObjectID(inObjectID);
// instantiate a new AudioDevice object in the HAL
AudioDeviceID theNewDeviceID = 0;
#if (MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_4)
OSStatus theError = AudioHardwareClaimAudioDeviceID(GetInterface(), &theNewDeviceID);
#else
OSStatus theError = AudioObjectCreate(GetInterface(), kAudioObjectSystemObject, kAudioDeviceClassID, &theNewDeviceID);
#endif
ThrowIfError(theError, CAException(theError), "SHP_PlugIn::InitializeWithObjectID: couldn't instantiate the AudioDevice object");
// make a device object
mDevice = new SHP_Device(theNewDeviceID, this);
mDevice->Initialize();
// restore it's settings if necessary
UInt32 isMaster = 0;
UInt32 theSize = sizeof(UInt32);
AudioHardwareGetProperty(kAudioHardwarePropertyProcessIsMaster, &theSize, &isMaster);
if(isMaster != 0)
{
HP_DeviceSettings::RestoreFromPrefs(*mDevice, HP_DeviceSettings::sStandardControlsToSave, HP_DeviceSettings::kStandardNumberControlsToSave);
}
// set the object state mutex
HP_Object::SetObjectStateMutexForID(theNewDeviceID, mDevice->GetObjectStateMutex());
// tell the HAL about the device
#if (MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_4)
theError = AudioHardwareDevicesCreated(GetInterface(), 1, &theNewDeviceID);
#else
theError = AudioObjectsPublishedAndDied(GetInterface(), kAudioObjectSystemObject, 1, &theNewDeviceID, 0, NULL);
#endif
AssertNoError(theError, "SHP_PlugIn::InitializeWithObjectID: got an error telling the HAL a device died");
}
