00001 /*======================================================================= 00002 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.), *** 00003 *** AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT. *** 00004 *** *** 00005 *** REPRODUCTION, DISCLOSURE, OR USE, IN WHOLE OR IN PART, OTHER THAN AS *** 00006 *** SPECIFIED IN THE LICENSE ARE NOT TO BE UNDERTAKEN EXCEPT WITH PRIOR *** 00007 *** WRITTEN AUTHORIZATION OF FEI S.A.S. *** 00008 *** *** 00009 *** RESTRICTED RIGHTS LEGEND *** 00010 *** USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS *** 00011 *** WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN *** 00012 *** SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT *** 00013 *** CLAUSE AT FAR 52.227-19 OR SUBPARAGRAPH (C)(1)(II) OF THE RIGHTS IN *** 00014 *** TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013. *** 00015 *** *** 00016 *** COPYRIGHT (C) 1996-2020 BY FEI S.A.S, *** 00017 *** BORDEAUX, FRANCE *** 00018 *** ALL RIGHTS RESERVED *** 00019 **=======================================================================*/ 00020 /*======================================================================= 00021 ** Author : David Beilloin (May 2007) 00022 **=======================================================================*/ 00023 00024 00025 #ifndef _SB_THREAD_SEMAPHORE__ 00026 #define _SB_THREAD_SEMAPHORE__ 00027 00028 #include <Inventor/SbBase.h> 00029 00051 class SbThreadSemaphore { 00052 00053 public: 00060 SbThreadSemaphore(int initialCount, int maxCount = -1); 00061 00065 ~SbThreadSemaphore(); 00066 00067 void wait(); 00078 SbBool trywait( const unsigned int timeout_ms = 0); 00079 00083 void release(); 00084 00088 void changeCount(int); 00089 00090 private: 00091 void* m_semHandle; 00092 }; 00093 00094 #endif // _SB_THREAD_SEMAPHORE__ 00095 00096 00097