/* * 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 CMsgQueue */ #ifndef __CMsgQueue_h__ #define __CMsgQueue_h__ 1 #include <DirectoryServiceCore/DSSemaphore.h> class CMsgQueue; extern CMsgQueue *gMsgQueue; typedef struct sQueueItem sQueueItem; typedef struct sQueueItem { void *msgData; sQueueItem *next; } sQueueItem; class CMsgQueue { public: CMsgQueue ( void ); virtual ~CMsgQueue ( void ); // returns false if no handlers for the queue bool QueueMessage ( void *inMsgData ); // returns true if message available bool DequeueMessage ( void **outMsgData ); UInt32 GetMsgCount(); // returns false if times out, expecting that it will remove itself bool WaitOnMessage ( UInt32 inMilliSecs ); void ClearMsgQueue ( void ); private: sQueueItem *fListTail; pthread_mutex_t fMutex; pthread_cond_t fCondition; DSSemaphore fQueueLock; UInt32 fHandlersAvailable; UInt32 fMsgCount; UInt32 fTotalMsgCnt; }; #endif