/* * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved. * * The contents of this file constitute Original Code as defined in and are * subject to the Apple Public Source License Version 1.2 (the 'License'). * You may not use this file except in compliance with the License. Please obtain * a copy of the License at http://www.apple.com/publicsource and read it before * using this file. * * This Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the * specific language governing rights and limitations under the License. */ // // multiobserver - Observer multiplexer // #ifndef _H_MULTIPLEXOBSERVER #define _H_MULTIPLEXOBSERVER #include #include namespace Security { namespace Network { // // A MultipexObserver can be used to "fan out" events to any number of Observers. // Note that we do not keep an ordering of Observers. // class MultiplexObserver : public Observer { public: MultiplexObserver(); void add(Observer &obs); void remove(Observer &obs); bool contains(Observer &obs); // call setEvents() if one of the member Observers changes its event set // Note: this disallows setEvents(Events) on purpose void setEvents(); void add(Observer *obs) { assert(obs); add(*obs); } void remove(Observer *obs) { assert(obs); remove(*obs); } void observe(Events events, Transfer *xfer, const void *info); private: set mObservers; }; } // end namespace Network } // end namespace Security #endif /* _H_MULTIPLEXOBSERVER */