OFThreadPool.h

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/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
 *   Jonathan Schleifer <js@heap.zone>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFObject.h"

OF_ASSUME_NONNULL_BEGIN

#ifdef OF_HAVE_BLOCKS

typedef void (^of_thread_pool_block_t)(void);
#endif

@class OFCondition;
@class OFList OF_GENERIC(ObjectType);
@class OFMutableArray OF_GENERIC(ObjectType);
@class OFThreadPoolJob;

@interface OFThreadPool: OFObject
{
    size_t _size;
    OFMutableArray *_threads;
    volatile int _count;
@public
    OFList *_queue;
    OFCondition *_queueCondition;
    volatile int _doneCount;
    OFCondition *_countCondition;
}

+ (instancetype)threadPool;

+ (instancetype)threadPoolWithSize: (size_t)size;

- initWithSize: (size_t)size OF_DESIGNATED_INITIALIZER;

- (void)dispatchWithTarget: (id)target
          selector: (SEL)selector
            object: (nullable id)object;

#ifdef OF_HAVE_BLOCKS

- (void)dispatchWithBlock: (of_thread_pool_block_t)block;
#endif

- (void)waitUntilDone;

- (size_t)size;
@end

OF_ASSUME_NONNULL_END