/*
* Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 3.0 only,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* version 3.0 for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* version 3.0 along with this program. If not, see
* <https://www.gnu.org/licenses/>.
*/
#import "OFObject.h"
OF_ASSUME_NONNULL_BEGIN
/**
* @class OFBlock OFBlock.h ObjFW/OFBlock.h
*
* @brief The class for all blocks, since all blocks are also objects.
*/
@interface OFBlock: OFObject
+ (instancetype)alloc OF_UNAVAILABLE;
- (instancetype)init OF_UNAVAILABLE;
@end
OF_SUBCLASSING_RESTRICTED
@interface OFStackBlock: OFBlock
@end
OF_SUBCLASSING_RESTRICTED
@interface OFGlobalBlock: OFBlock
@end
OF_SUBCLASSING_RESTRICTED
@interface OFMallocBlock: OFBlock
@end
#ifdef __cplusplus
extern "C" {
#endif
extern void *_Nullable _Block_copy(const void *_Nullable);
extern void _Block_release(const void *_Nullable);
# if defined(OF_WINDOWS) && \
(defined(OF_NO_SHARED) || defined(OF_COMPILING_OBJFW))
/*
* Clang has implicit declarations for these, but they are dllimport. When
* compiling ObjFW itself or using it as a static library, these need to be
* dllexport. Interestingly, this still works when using it as a shared library.
*/
extern __declspec(dllexport) struct objc_class _NSConcreteStackBlock;
extern __declspec(dllexport) struct objc_class _NSConcreteGlobalBlock;
extern __declspec(dllexport) void _Block_object_assign(void *, const void *,
const int);
extern __declspec(dllexport) void _Block_object_dispose(const void *,
const int);
# endif
#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