syncpoint.h
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- /*
- * syncpoint.h
- *
- * Single thread synchronisation point (event) class.
- *
- * Portable Windows Library
- *
- * Copyright (c) 1993-1998 Equivalence Pty. Ltd.
- *
- * The contents of this file are subject to the Mozilla Public License
- * Version 1.0 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
- *
- * The Original Code is Portable Windows Library.
- *
- * The Initial Developer of the Original Code is Equivalence Pty. Ltd.
- *
- * Portions are Copyright (C) 1993 Free Software Foundation, Inc.
- * All Rights Reserved.
- *
- * Contributor(s): ______________________________________.
- *
- * $Log: syncpoint.h,v $
- * Revision 1.5 1999/03/09 02:59:51 robertj
- * Changed comments to doc++ compatible documentation.
- *
- * Revision 1.4 1999/02/16 08:11:17 robertj
- * MSVC 6.0 compatibility changes.
- *
- * Revision 1.3 1998/11/30 02:52:00 robertj
- * New directory structure
- *
- * Revision 1.2 1998/09/23 06:21:34 robertj
- * Added open source copyright license.
- *
- * Revision 1.1 1998/03/23 02:41:34 robertj
- * Initial revision
- *
- */
- #define _PSYNCPOINT
- #ifdef __GNUC__
- #pragma interface
- #endif
- #include <ptlib/semaphor.h>
- /** This class defines a thread synchonisation object.
- This form of semaphore is used to indicate an {it event} has occurred. A
- thread may block on theis sync point and wait until another thread signals
- that it may continue. eg:
- begin{verbatim}
- ... thread one
- while (condition) {
- sync.Wait();
- do_something();
- }
- ... thread 2
- do_something_else();
- sync.Signal(); // At this point thread 1 wake up and does something.
- do_yet_more();
- end{verbatim}
- */
- class PSyncPoint : public PSemaphore
- {
- PCLASSINFO(PSyncPoint, PSemaphore);
- public:
- /** Create a new sync point.
- */
- PSyncPoint();
- #ifdef DOC_PLUS_PLUS
- };
- #endif
- // Class declaration continued in platform specific header file ///////////////