block.h

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
 *   Jonathan Schleifer <js@webkeks.org>
 *
 * 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 "macros.h"

OF_ASSUME_NONNULL_BEGIN

typedef struct of_block_literal_t {
#ifdef __OBJC__
    Class isa;
#else
    void *isa;
#endif
    int flags;
    int reserved;
    void (*invoke)(void *block, ...);
    struct of_block_descriptor_t {
        unsigned long reserved;
        unsigned long size;
        void (*copy_helper)(void *dest, void *src);
        void (*dispose_helper)(void *src);
        const char *signature;
    } *descriptor;
} of_block_literal_t;

#ifdef __cplusplus
extern "C" {
#endif
extern void* _Block_copy(const void*);
extern void _Block_release(const void*);
#ifdef __cplusplus
}
#endif

#ifndef Block_copy
# define Block_copy(...) \
    ((__typeof__(__VA_ARGS__))_Block_copy((const void*)(__VA_ARGS__)))
#endif
#ifndef Block_release
# define Block_release(...) _Block_release((const void*)(__VA_ARGS__))
#endif

OF_ASSUME_NONNULL_END