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VersionRWLock.h

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00001 #ifndef VERSIONRWLOCK_H 00002 #define VERSIONRWLOCK_H 00003 00004 #include <iostream> 00005 #include <pthread.h> 00006 #include <stdio.h> 00007 00008 #include "common.h" 00009 00010 using namespace Borealis; 00011 00012 00024 class VersionRWLock 00025 { 00026 public: 00030 VersionRWLock(); 00031 00035 int32 readVersion(); 00036 00042 bool verifyVersion( int32 version ); 00043 00047 void writeLock(); 00048 00053 void writeUnLock(); 00054 00055 private: 00056 pthread_mutex_t mutex; 00057 pthread_cond_t readOK; 00058 00059 int32 _version; 00060 int32 _writers; 00061 }; 00062 00063 #endif // VERSIONRWLOCK_H

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