/* * Block.h * * Copyright (c) 2008-2010 Apple Inc. All rights reserved. * * @APPLE_LLVM_LICENSE_HEADER@ * */ #ifndef _Block_H_ #define _Block_H_ #if !defined(BLOCK_EXPORT) # if defined(__cplusplus) # define BLOCK_EXPORT extern "C" # else # define BLOCK_EXPORT extern # endif #endif #if __has_include() #include #else #define __OSX_AVAILABLE_STARTING(m,i) #endif #include #include #if __cplusplus extern "C" { #endif // Create a heap based copy of a Block or simply add a reference to an existing one. // This must be paired with Block_release to recover memory, even when running // under Objective-C Garbage Collection. BLOCK_EXPORT void *__single _Block_copy(const void *__single aBlock) __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_2); // Lose the reference, and if heap based and last reference, recover the memory BLOCK_EXPORT void _Block_release(const void *__single aBlock) __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_2); // Used by the compiler. Do not call this function yourself. BLOCK_EXPORT void _Block_object_assign(void *, const void *, const int) __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_2); // Used by the compiler. Do not call this function yourself. BLOCK_EXPORT void _Block_object_dispose(const void *, const int) __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_2); // Used by the compiler. Do not use these variables yourself. BLOCK_EXPORT void * _NSConcreteGlobalBlock[32] __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_2); BLOCK_EXPORT void * _NSConcreteStackBlock[32] __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_2); #if __cplusplus } #endif // Type correct macros #define Block_copy(...) ((__typeof(__VA_ARGS__))_Block_copy(__unsafe_forge_single(const void *, (const void *)(__VA_ARGS__)))) #define Block_release(...) _Block_release(__unsafe_forge_single(const void *, (const void *)(__VA_ARGS__))) #endif