/* * Copyright (c) 2002 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The 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. * * @APPLE_LICENSE_HEADER_END@ */ /*! * @header DSEventSemaphore * Interface for the DSEventSemaphore (gating lock) class. */ #ifndef _DSEventSemaphore_H_ #define _DSEventSemaphore_H_ #include <unistd.h> // for _POSIX_THREADS #include <pthread.h> // for pthread_*_t #include <DirectoryServiceCore/PrivateTypes.h> class DSEventSemaphore { public: /**** Instance methods. ****/ // ctor and dtor. DSEventSemaphore ( void ); ~DSEventSemaphore ( void ); void PostEvent ( void ); void ResetEvent ( void ); // returns true if got event, otherwise false if it timed out // pass 0 to wait forever bool WaitForEvent ( SInt32 milliSecs = 0 ); protected: /**** Instance variables. ****/ pthread_mutex_t fMutex; pthread_cond_t fCondition; bool fbEvent; SInt32 fMilliSecsTotal; }; #endif /* _DSEventSemaphore_H_ */