gistfile1.cpp

		OSStatus PrimeEffect(UInt32 inEffectID, ALuint *sourceID)
		{
			// Locate an available source.  We consider a source available if it is either not primed or is in the stoppped state
			for (int i = 0; i < MAX_SOURCES; ++i){
				if (! mSourcePrimed[i]){
					mSourcePrimed[i] = TRUE;
					alSourcei(mSourceID[i], AL_BUFFER, inEffectID);
					*sourceID = mSourceID[i];
					return alGetError();
				}
				
				ALint sourceState;
				alGetSourcei(mSourceID[i], AL_SOURCE_STATE, &sourceState);
				if (sourceState == AL_STOPPED){
					alSourcei(mSourceID[i], AL_BUFFER, inEffectID);
					*sourceID = mSourceID[i];
					return 0;
				}
			}
			
			// If we fell through the loop, then no available sources
			return kSoundEngineErrNoSourcesAvailable;
		}