57 lines
2.0 KiB
Objective-C
57 lines
2.0 KiB
Objective-C
#import <Foundation/Foundation.h>
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@class GCDMulticastDelegateEnumerator;
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/**
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* This class provides multicast delegate functionality. That is:
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* - it provides a means for managing a list of delegates
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* - any method invocations to an instance of this class are automatically forwarded to all delegates
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*
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* For example:
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*
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* // Make this method call on every added delegate (there may be several)
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* [multicastDelegate cog:self didFindThing:thing];
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*
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* This allows multiple delegates to be added to an xmpp stream or any xmpp module,
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* which in turn makes development easier as there can be proper separation of logically different code sections.
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*
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* In addition, this makes module development easier,
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* as multiple delegates can usually be handled in a manner similar to the traditional single delegate paradigm.
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*
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* This class also provides proper support for GCD queues.
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* So each delegate specifies which queue they would like their delegate invocations to be dispatched onto.
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*
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* All delegate dispatching is done asynchronously (which is a critically important architectural design).
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**/
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@interface GCDMulticastDelegate : NSObject
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- (void)addDelegate:(id)delegate delegateQueue:(dispatch_queue_t)delegateQueue;
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- (void)removeDelegate:(id)delegate delegateQueue:(dispatch_queue_t)delegateQueue;
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- (void)removeDelegate:(id)delegate;
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- (void)removeAllDelegates;
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- (NSUInteger)count;
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- (NSUInteger)countOfClass:(Class)aClass;
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- (NSUInteger)countForSelector:(SEL)aSelector;
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- (BOOL)hasDelegateThatRespondsToSelector:(SEL)aSelector;
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- (GCDMulticastDelegateEnumerator *)delegateEnumerator;
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@end
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@interface GCDMulticastDelegateEnumerator : NSObject
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- (NSUInteger)count;
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- (NSUInteger)countOfClass:(Class)aClass;
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- (NSUInteger)countForSelector:(SEL)aSelector;
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- (BOOL)getNextDelegate:(id *)delPtr delegateQueue:(dispatch_queue_t *)dqPtr;
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- (BOOL)getNextDelegate:(id *)delPtr delegateQueue:(dispatch_queue_t *)dqPtr ofClass:(Class)aClass;
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- (BOOL)getNextDelegate:(id *)delPtr delegateQueue:(dispatch_queue_t *)dqPtr forSelector:(SEL)aSelector;
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@end
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