void HP_Stream::PropertiesChanged(UInt32 inNumberAddresses, const AudioObjectPropertyAddress inAddresses[]) const
{
// note that we need to be sure that the object state mutex is not held while we call the listeners
bool ownsStateMutex = false;
CAMutex* theObjectStateMutex = const_cast<HP_Object*>(this)->GetObjectStateMutex();
if(theObjectStateMutex != NULL)
{
ownsStateMutex = theObjectStateMutex->IsOwnedByCurrentThread();
if(ownsStateMutex)
{
theObjectStateMutex->Unlock();
}
}
for(UInt32 theIndex = 0; theIndex < inNumberAddresses; ++theIndex)
{
OSStatus theError = AudioHardwareStreamPropertyChanged(mPlugIn->GetInterface(), mOwningDevice->GetObjectID(), mObjectID, inAddresses[theIndex].mElement, inAddresses[theIndex].mSelector);
AssertNoError(theError, "HP_Stream::PropertiesChanged: got an error calling the input listeners");
}
// re-lock the mutex
if((theObjectStateMutex != NULL) && ownsStateMutex)
{
theObjectStateMutex->Lock();
}
}
static OSStatus HP_HardwarePlugIn_DeviceGetPropertyInfo(AudioHardwarePlugInRef inSelf, AudioDeviceID inDeviceID, UInt32 inChannel, Boolean isInput, AudioDevicePropertyID inPropertyID, UInt32* outSize, Boolean* outWritable)
{
OSStatus theError = kAudioHardwareNoError;
CAMutex* theObjectStateMutex = NULL;
bool theObjectStateMutexNeedsUnlocking = false;
try
{
// check the function arguments
ThrowIfNULL(inSelf, CAException(kAudioHardwareIllegalOperationError), "HP_HardwarePlugIn_DeviceGetPropertyInfo: no plug-in");
// find the device for the given ID
HP_Device* theDevice = HP_Object::GetDeviceByID(inDeviceID);
ThrowIfNULL(theDevice, CAException(kAudioHardwareBadDeviceError), "HP_HardwarePlugIn_DeviceGetPropertyInfo: no device with given ID");
// get the object state mutex
theObjectStateMutex = HP_Object::GetObjectStateMutexByID(inDeviceID);
// lock the mutex
if(theObjectStateMutex != NULL)
{
theObjectStateMutexNeedsUnlocking = theObjectStateMutex->Lock();
// re-find the object for the given ID since it may have changed while we blocked waiting for the lock
theDevice = HP_Object::GetDeviceByID(inDeviceID);
ThrowIfNULL(theDevice, CAException(kAudioHardwareBadObjectError), "HP_HardwarePlugIn_DeviceGetPropertyInfo: no device with given ID after locking");
}
// construct a property address
CAPropertyAddress theAddress(inPropertyID, isInput == 0 ? kAudioDevicePropertyScopeOutput : kAudioDevicePropertyScopeInput, inChannel);
// do the work
ThrowIf(!theDevice->HasProperty(theAddress), CAException(kAudioHardwareUnknownPropertyError), "HP_HardwarePlugIn_DeviceGetPropertyInfo: no such property");
if(outSize != NULL)
{
*outSize = theDevice->GetPropertyDataSize(theAddress, 0, NULL);
}
if(outWritable != NULL)
{
*outWritable = theDevice->IsPropertySettable(theAddress) ? 1 : 0;
}
}
catch(const CAException& inException)
{
theError = inException.GetError();
}
catch(...)
{
theError = kAudioHardwareUnspecifiedError;
}
// unlock the object state mutex if we need to
if((theObjectStateMutex != NULL) && theObjectStateMutexNeedsUnlocking)
{
theObjectStateMutex->Unlock();
}
return theError;
}
static OSStatus HP_HardwarePlugIn_StreamGetPropertyInfo(AudioHardwarePlugInRef inSelf, AudioStreamID inStreamID, UInt32 inChannel, AudioDevicePropertyID inPropertyID, UInt32* outSize, Boolean* outWritable)
{
OSStatus theError = kAudioHardwareNoError;
CAMutex* theObjectStateMutex = NULL;
bool theObjectStateMutexNeedsUnlocking = false;
try
{
// check the function arguments
ThrowIfNULL(inSelf, CAException(kAudioHardwareIllegalOperationError), "HP_HardwarePlugIn_StreamGetPropertyInfo: no plug-in");
// get the object state mutex
theObjectStateMutex = HP_Object::GetObjectStateMutexByID(inStreamID);
// lock the mutex
if(theObjectStateMutex != NULL)
{
theObjectStateMutexNeedsUnlocking = theObjectStateMutex->Lock();
}
// find the stream for the given ID
HP_Stream* theStream = HP_Object::GetStreamByID(inStreamID);
ThrowIfNULL(theStream, CAException(kAudioHardwareBadObjectError), "HP_HardwarePlugIn_StreamGetPropertyInfo: no device with given ID after locking");
// construct a property address
CAPropertyAddress theAddress(inPropertyID, kAudioObjectPropertyScopeGlobal, inChannel);
// do the work
ThrowIf(!theStream->HasProperty(theAddress), CAException(kAudioHardwareUnknownPropertyError), "HP_HardwarePlugIn_StreamGetPropertyInfo: no such property");
if(outSize != NULL)
{
*outSize = theStream->GetPropertyDataSize(theAddress, 0, NULL);
}
if(outWritable != NULL)
{
*outWritable = theStream->IsPropertySettable(theAddress) ? 1 : 0;
}
}
catch(const CAException& inException)
{
theError = inException.GetError();
}
catch(...)
{
theError = kAudioHardwareUnspecifiedError;
}
// unlock the object state mutex if we need to
if((theObjectStateMutex != NULL) && theObjectStateMutexNeedsUnlocking)
{
theObjectStateMutex->Unlock();
}
return theError;
}
static OSStatus HP_HardwarePlugIn_StreamGetProperty(AudioHardwarePlugInRef inSelf, AudioStreamID inStreamID, UInt32 inChannel, AudioDevicePropertyID inPropertyID, UInt32* ioPropertyDataSize, void* outPropertyData)
{
OSStatus theError = kAudioHardwareNoError;
CAMutex* theObjectStateMutex = NULL;
bool theObjectStateMutexNeedsUnlocking = false;
try
{
// check the function arguments
ThrowIfNULL(inSelf, CAException(kAudioHardwareIllegalOperationError), "HP_HardwarePlugIn_StreamGetProperty: no plug-in");
ThrowIfNULL(ioPropertyDataSize, CAException(kAudioHardwareIllegalOperationError), "HP_HardwarePlugIn_StreamGetProperty: no data size");
// find the stream for the given ID
HP_Stream* theStream = HP_Object::GetStreamByID(inStreamID);
ThrowIfNULL(theStream, CAException(kAudioHardwareBadStreamError), "HP_HardwarePlugIn_StreamGetProperty: no stream with given ID");
// get the object state mutex
theObjectStateMutex = HP_Object::GetObjectStateMutexByID(inStreamID);
// lock the mutex
if(theObjectStateMutex != NULL)
{
theObjectStateMutexNeedsUnlocking = theObjectStateMutex->Lock();
// re-find the object for the given ID since it may have changed while we blocked waiting for the lock
theStream = HP_Object::GetStreamByID(inStreamID);
ThrowIfNULL(theStream, CAException(kAudioHardwareBadObjectError), "HP_HardwarePlugIn_StreamGetProperty: no device with given ID after locking");
}
// construct a property address
CAPropertyAddress theAddress(inPropertyID, kAudioObjectPropertyScopeGlobal, inChannel);
// do the work
theStream->GetPropertyData(theAddress, 0, NULL, *ioPropertyDataSize, outPropertyData);
}
catch(const CAException& inException)
{
theError = inException.GetError();
}
catch(...)
{
theError = kAudioHardwareUnspecifiedError;
}
// unlock the object state mutex if we need to
if((theObjectStateMutex != NULL) && theObjectStateMutexNeedsUnlocking)
{
theObjectStateMutex->Unlock();
}
return theError;
}
static OSStatus HP_HardwarePlugIn_ObjectGetPropertyData(AudioHardwarePlugInRef inSelf, AudioObjectID inObjectID, const AudioObjectPropertyAddress* inAddress, UInt32 inQualifierDataSize, const void* inQualifierData, UInt32* ioDataSize, void* outData)
{
OSStatus theError = kAudioHardwareNoError;
CAMutex* theObjectStateMutex = NULL;
bool theObjectStateMutexNeedsUnlocking = false;
try
{
// check the function arguments
ThrowIfNULL(inSelf, CAException(kAudioHardwareIllegalOperationError), "HP_HardwarePlugIn_ObjectGetPropertyData: no plug-in");
ThrowIfNULL(inAddress, CAException(kAudioHardwareIllegalOperationError), "HP_HardwarePlugIn_ObjectGetPropertyData: no address");
ThrowIfNULL(ioDataSize, CAException(kAudioHardwareIllegalOperationError), "HP_HardwarePlugIn_ObjectGetPropertyData: no info about the size of the property data");
// find the object for the given ID
HP_Object* theObject = HP_Object::GetObjectByID(inObjectID);
ThrowIfNULL(theObject, CAException(kAudioHardwareBadObjectError), "HP_HardwarePlugIn_ObjectGetPropertyData: no object with given ID");
// get the object state mutex
theObjectStateMutex = HP_Object::GetObjectStateMutexByID(inObjectID);
// lock the mutex
if(theObjectStateMutex != NULL)
{
theObjectStateMutexNeedsUnlocking = theObjectStateMutex->Lock();
// re-find the object for the given ID since it may have changed while we blocked waiting for the lock
theObject = HP_Object::GetObjectByID(inObjectID);
ThrowIfNULL(theObject, CAException(kAudioHardwareBadObjectError), "HP_HardwarePlugIn_ObjectGetPropertyData: no object with given ID after locking");
}
// do the work
theObject->GetPropertyData(*inAddress, inQualifierDataSize, inQualifierData, *ioDataSize, outData);
}
catch(const CAException& inException)
{
theError = inException.GetError();
}
catch(...)
{
theError = kAudioHardwareUnspecifiedError;
}
// unlock the object state mutex if we need to
if((theObjectStateMutex != NULL) && theObjectStateMutexNeedsUnlocking)
{
theObjectStateMutex->Unlock();
}
return theError;
}
static OSStatus HP_HardwarePlugIn_ObjectIsPropertySettable(AudioHardwarePlugInRef inSelf, AudioObjectID inObjectID, const AudioObjectPropertyAddress* inAddress, Boolean* outIsSettable)
{
OSStatus theError = kAudioHardwareNoError;
CAMutex* theObjectStateMutex = NULL;
bool theObjectStateMutexNeedsUnlocking = false;
try
{
// check the function arguments
ThrowIfNULL(inSelf, CAException(kAudioHardwareIllegalOperationError), "HP_HardwarePlugIn_ObjectIsPropertySettable: no plug-in");
ThrowIfNULL(inAddress, CAException(kAudioHardwareIllegalOperationError), "HP_HardwarePlugIn_ObjectIsPropertySettable: no address");
ThrowIfNULL(outIsSettable, CAException(kAudioHardwareIllegalOperationError), "HP_HardwarePlugIn_ObjectIsPropertySettable: no place to store return value");
// find the object for the given ID
HP_Object* theObject = HP_Object::GetObjectByID(inObjectID);
ThrowIfNULL(theObject, CAException(kAudioHardwareBadObjectError), "HP_HardwarePlugIn_ObjectIsPropertySettable: no object with given ID");
// get the object state mutex
theObjectStateMutex = HP_Object::GetObjectStateMutexByID(inObjectID);
// lock the mutex
if(theObjectStateMutex != NULL)
{
theObjectStateMutexNeedsUnlocking = theObjectStateMutex->Lock();
// re-find the object for the given ID since it may have changed while we blocked waiting for the lock
theObject = HP_Object::GetObjectByID(inObjectID);
ThrowIfNULL(theObject, CAException(kAudioHardwareBadObjectError), "HP_HardwarePlugIn_ObjectIsPropertySettable: no object with given ID after locking");
}
// do the work
*outIsSettable = theObject->IsPropertySettable(*inAddress);
}
catch(const CAException& inException)
{
theError = inException.GetError();
}
catch(...)
{
theError = kAudioHardwareUnspecifiedError;
}
// unlock the object state mutex if we need to
if((theObjectStateMutex != NULL) && theObjectStateMutexNeedsUnlocking)
{
theObjectStateMutex->Unlock();
}
return theError;
}
static Boolean HP_HardwarePlugIn_ObjectHasProperty(AudioHardwarePlugInRef inSelf, AudioObjectID inObjectID, const AudioObjectPropertyAddress* inAddress)
{
Boolean theAnswer = false;
CAMutex* theObjectStateMutex = NULL;
bool theObjectStateMutexNeedsUnlocking = false;
try
{
// check the function arguments
ThrowIfNULL(inSelf, CAException(kAudioHardwareIllegalOperationError), "HP_HardwarePlugIn_ObjectHasProperty: no plug-in");
ThrowIfNULL(inAddress, CAException(kAudioHardwareIllegalOperationError), "HP_HardwarePlugIn_ObjectHasProperty: no address");
// find the object for the given ID
HP_Object* theObject = HP_Object::GetObjectByID(inObjectID);
ThrowIfNULL(theObject, CAException(kAudioHardwareBadObjectError), "HP_HardwarePlugIn_ObjectHasProperty: no object with given ID");
// get the object state mutex
theObjectStateMutex = HP_Object::GetObjectStateMutexByID(inObjectID);
// lock the mutex
if(theObjectStateMutex != NULL)
{
theObjectStateMutexNeedsUnlocking = theObjectStateMutex->Lock();
// re-find the object for the given ID since it may have changed while we blocked waiting for the lock
theObject = HP_Object::GetObjectByID(inObjectID);
ThrowIfNULL(theObject, CAException(kAudioHardwareBadObjectError), "HP_HardwarePlugIn_ObjectHasProperty: no object with given ID after locking");
}
// do the work
theAnswer = theObject->HasProperty(*inAddress);
}
catch(const CAException& inException)
{
theAnswer = false;
}
catch(...)
{
theAnswer = false;
}
// unlock the object state mutex if we need to
if((theObjectStateMutex != NULL) && theObjectStateMutexNeedsUnlocking)
{
theObjectStateMutex->Unlock();
}
return theAnswer;
}
static OSStatus HP_HardwarePlugIn_DeviceGetProperty(AudioHardwarePlugInRef inSelf, AudioDeviceID inDeviceID, UInt32 inChannel, Boolean isInput, AudioDevicePropertyID inPropertyID, UInt32* ioPropertyDataSize, void* outPropertyData)
{
OSStatus theError = kAudioHardwareNoError;
CAMutex* theObjectStateMutex = NULL;
bool theObjectStateMutexNeedsUnlocking = false;
try
{
// check the function arguments
ThrowIfNULL(inSelf, CAException(kAudioHardwareIllegalOperationError), "HP_HardwarePlugIn_DeviceGetProperty: no plug-in");
ThrowIfNULL(ioPropertyDataSize, CAException(kAudioHardwareIllegalOperationError), "HP_HardwarePlugIn_DeviceGetProperty: no data size");
// get the object state mutex
theObjectStateMutex = HP_Object::GetObjectStateMutexByID(inDeviceID);
// lock the mutex
if(theObjectStateMutex != NULL)
{
theObjectStateMutexNeedsUnlocking = theObjectStateMutex->Lock();
}
// find the device for the given ID
HP_Device* theDevice = HP_Object::GetDeviceByID(inDeviceID);
ThrowIfNULL(theDevice, CAException(kAudioHardwareBadObjectError), "HP_HardwarePlugIn_DeviceGetProperty: no device with given ID after locking");
// construct a property address
CAPropertyAddress theAddress(inPropertyID, isInput == 0 ? kAudioDevicePropertyScopeOutput : kAudioDevicePropertyScopeInput, inChannel);
// do the work
theDevice->GetPropertyData(theAddress, 0, NULL, *ioPropertyDataSize, outPropertyData);
}
catch(const CAException& inException)
{
theError = inException.GetError();
}
catch(...)
{
theError = kAudioHardwareUnspecifiedError;
}
// unlock the object state mutex if we need to
if((theObjectStateMutex != NULL) && theObjectStateMutexNeedsUnlocking)
{
theObjectStateMutex->Unlock();
}
return theError;
}
//-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
// SendNotification()
//-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
void ScheduledOutputNotificationProc::SendNotification(UInt64 sequenceNumberOfBufferThatWasOutput, UInt64 outputHostTime)
{
CAMutex* objectStateMutex = mOwningStream.GetObjectStateMutex();
bool objectStateMutexNeedsUnlocking = false;
try
{
if (objectStateMutex != NULL)
objectStateMutexNeedsUnlocking = objectStateMutex->Lock();
if (mScheduledOutputNotificationProc.scheduledOutputNotificationProc)
(mScheduledOutputNotificationProc.scheduledOutputNotificationProc)(sequenceNumberOfBufferThatWasOutput, outputHostTime, mScheduledOutputNotificationProc.scheduledOutputNotificationRefCon);
}
catch (...)
{
}
if (objectStateMutexNeedsUnlocking)
objectStateMutex->Unlock();
}
void HP_Object::PropertiesChanged(UInt32 inNumberAddresses, const AudioObjectPropertyAddress inAddresses[]) const
{
// note that we need to be sure that the object state mutex is not held while we call the listeners
bool ownsStateMutex = false;
CAMutex* theObjectStateMutex = const_cast<HP_Object*>(this)->GetObjectStateMutex();
if(theObjectStateMutex != NULL)
{
ownsStateMutex = theObjectStateMutex->IsOwnedByCurrentThread();
if(ownsStateMutex)
{
theObjectStateMutex->Unlock();
}
}
OSStatus theError = AudioObjectPropertiesChanged(mPlugIn->GetInterface(), mObjectID, inNumberAddresses, inAddresses);
AssertNoError(theError, "HP_Object::PropertiesChanged: got an error calling the listeners");
// re-lock the mutex
if((theObjectStateMutex != NULL) && ownsStateMutex)
{
theObjectStateMutex->Lock();
}
}