ObjFW  Diff

#define __NO_EXT_QNX

#include "config.h"

#include <errno.h>

#import "OFKernelEventObserver.h"
#import "OFKernelEventObserver+Private.h"
#import "OFArray.h"
#import "OFData.h"
#import "OFDate.h"
#ifdef OF_HAVE_THREADS
# import "OFMutex.h"
#endif
#import "OFStream.h"
#import "OFStream+Private.h"
#ifndef OF_HAVE_PIPE
# import "OFStreamSocket.h"
#endif

#ifdef HAVE_KQUEUE

			if (of_socket_errno() != EADDRINUSE)
				@throw [OFInitializationFailedException
				    exceptionWithClass: self.class];
		}
# endif
#endif

#ifdef OF_HAVE_THREADS
		_mutex = [[OFMutex alloc] init];
#endif

		_queueActions = [[OFMutableData alloc]
		    initWithItemSize: sizeof(int)];
		_queueObjects = [[OFMutableArray alloc] init];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

	if (_cancelFD[1] != _cancelFD[0])
		closesocket(_cancelFD[1]);
#endif

	[_readObjects release];
	[_writeObjects release];

#ifdef OF_HAVE_THREADS
	[_mutex release];
#endif

	[_queueActions release];
	[_queueObjects release];

	[super dealloc];
}

- (void)addObjectForReading: (id <OFReadyForReadingObserving>)object
{
#ifdef OF_HAVE_THREADS
	[_mutex lock];
	@try {
#endif
		int action = QUEUE_ADD | QUEUE_READ;

		[_queueActions addItem: &action];
		[_queueObjects addObject: object];
#ifdef OF_HAVE_THREADS
	} @finally {
		[_mutex unlock];
	}
#endif

	[self cancel];
}

- (void)addObjectForWriting: (id <OFReadyForWritingObserving>)object
{
#ifdef OF_HAVE_THREADS
	[_mutex lock];
	@try {
#endif
		int action = QUEUE_ADD | QUEUE_WRITE;

		[_queueActions addItem: &action];
		[_queueObjects addObject: object];
#ifdef OF_HAVE_THREADS
	} @finally {
		[_mutex unlock];
	}
#endif

	[self cancel];
}

- (void)removeObjectForReading: (id <OFReadyForReadingObserving>)object
{
#ifdef OF_HAVE_THREADS
	[_mutex lock];
	@try {
#endif
		int action = QUEUE_REMOVE | QUEUE_READ;

		[_queueActions addItem: &action];
		[_queueObjects addObject: object];
#ifdef OF_HAVE_THREADS
	} @finally {
		[_mutex unlock];
	}
#endif

	[self cancel];
}

- (void)removeObjectForWriting: (id <OFReadyForWritingObserving>)object
{
#ifdef OF_HAVE_THREADS
	[_mutex lock];
	@try {
#endif
		int action = QUEUE_REMOVE | QUEUE_WRITE;

		[_queueActions addItem: &action];
		[_queueObjects addObject: object];
#ifdef OF_HAVE_THREADS
	} @finally {
		[_mutex unlock];
	}
#endif

	[self cancel];
}

- (void)of_addObjectForReading: (id <OFReadyForReadingObserving>)object
{
	OF_UNRECOGNIZED_SELECTOR
}

- (void)of_addObjectForWriting: (id <OFReadyForWritingObserving>)object
{
	OF_UNRECOGNIZED_SELECTOR
}

- (void)of_removeObjectForReading: (id <OFReadyForReadingObserving>)object
{
	OF_UNRECOGNIZED_SELECTOR
}

- (void)of_removeObjectForWriting: (id <OFReadyForWritingObserving>)object
{
	OF_UNRECOGNIZED_SELECTOR
}

- (void)of_processQueue
{
	void *pool = objc_autoreleasePoolPush();

#ifdef OF_HAVE_THREADS
	[_mutex lock];
	@try {
#endif
		const int *queueActions = _queueActions.items;
		id const *queueObjects = _queueObjects.objects;
		size_t count = _queueActions.count;

		OF_ENSURE(_queueObjects.count == count);

		for (size_t i = 0; i < count; i++) {
			int action = queueActions[i];
			id object = queueObjects[i];

			switch (action) {
			case QUEUE_ADD | QUEUE_READ:
				[_readObjects addObject: object];

				@try {
					[self of_addObjectForReading: object];
				} @catch (id e) {
					[_readObjects
					    removeObjectIdenticalTo: object];

					@throw e;
				}

				break;
			case QUEUE_ADD | QUEUE_WRITE:
				[_writeObjects addObject: object];

				@try {
					[self of_addObjectForWriting: object];
				} @catch (id e) {
					[_writeObjects
					    removeObjectIdenticalTo: object];

					@throw e;
				}

				break;
			case QUEUE_REMOVE | QUEUE_READ:
				[self of_removeObjectForReading: object];

				[_readObjects removeObjectIdenticalTo: object];

				break;
			case QUEUE_REMOVE | QUEUE_WRITE:
				[self of_removeObjectForWriting: object];

				[_writeObjects removeObjectIdenticalTo: object];

				break;
			default:
				OF_ENSURE(0);
			}
		}

		[_queueActions removeAllItems];
		[_queueObjects removeAllObjects];
#ifdef OF_HAVE_THREADS
	} @finally {
		[_mutex unlock];
	}
#endif

	objc_autoreleasePoolPop(pool);
}

- (bool)of_processReadBuffers
{
	bool foundInReadBuffer = false;

	for (id object in _readObjects) {