Single Case Macro ARC MRC

# #: Connection Strings and Parameters

#define SINGLETON_H (name) + (instancetype) shared# #name;

#if __has_feature (OBJ_ARC)//arc

#define SINGLETON_M (name) \

Static ID _instance; \

+ (ID) allocwithzone: (struct _nszone *) zone \

{ \

Static dispatch_once_t Oncetoken; \

Dispatch_once (&oncetoken, ^{\

_instance = [Super Allocwithzone:zone]; \

}); \

return _instance; \

} \

\

+ (instancetype) shared# #name \

{ \

Static dispatch_once_t Oncetoken; \

Dispatch_once (&oncetoken, ^{\

_instance = [[Self alloc] init]; \

}); \

return _instance; \

} \

\

+ (ID) copywithzone: (struct _nszone *) zone \

{ \

return _instance; \

}

#else//Non-arc

#define SINGLETON_M (name) \

Static ID _instance; \

+ (ID) allocwithzone: (struct _nszone *) zone \

{ \

Static dispatch_once_t Oncetoken; \

Dispatch_once (&oncetoken, ^{\

_instance = [Super Allocwithzone:zone]; \

}); \

return _instance; \

} \

\

+ (instancetype) shared# #name \

{ \

Static dispatch_once_t Oncetoken; \

Dispatch_once (&oncetoken, ^{\

_instance = [[Self alloc] init]; \

}); \

return _instance; \

} \

\

-(oneway void) release \

{ \

\

} \

\

-(ID) autorelease \

{ \

return _instance; \

} \

\

-(ID) retain \

{ \

return _instance; \

} \

\

-(Nsuinteger) retaincount \

{ \

return 1; \

} \

\

+ (ID) copywithzone: (struct _nszone *) zone \

{ \

return _instance; \

}

#endif

Single Case Macro ARC MRC