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/*
* NXInvalidationNotifier
* allow objects to register themselves for a senderIsInvalid message
* Notification is triggered by sending "invalidate" to this object
* Copyright 1991, NeXT Computer, Inc.
*/
#import <objc/List.h>
#import <machkit/reference.h>
#import <machkit/senderIsInvalid.h>
#import <machkit/NXLock.h>
@interface NXInvalidationNotifier : Object <NXReference> {
@protected
unsigned refcount;
BOOL isValid;
NXLock *listGate;
List *funeralList;
}
- init;
- deallocate;
- invalidate;
- (BOOL) isValid;
/* The target of this message will arrange to send "senderIsInvalid"*/
/* when, indeed, the target is about to die (is invalidated).*/
- registerForInvalidationNotification:(id <NXSenderIsInvalid>)anObject;
/* cancel the request for notification*/
- unregisterForInvalidationNotification:(id <NXSenderIsInvalid>)anObject;
@end
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.