50 lines
954 B
C++
50 lines
954 B
C++
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/*
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* $Id$
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*
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* Author: Jeff O. Hill
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*
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*/
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#define epicsExportSharedSymbols
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#include "epicsSingleton.h"
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class epicsShareClass epicsSingletonMutex {
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public:
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epicsSingletonMutex ();
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~epicsSingletonMutex ();
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epicsMutex & get ();
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private:
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epicsThreadOnceId onceFlag;
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epicsMutex * pMutex;
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static void once ( void * );
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};
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epicsSingletonMutex::epicsSingletonMutex () :
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onceFlag ( EPICS_THREAD_ONCE_INIT ), pMutex ( 0 )
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{
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}
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epicsSingletonMutex::~epicsSingletonMutex ()
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{
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delete this->pMutex;
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}
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void epicsSingletonMutex::once ( void * pParm )
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{
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epicsSingletonMutex *pSM = static_cast < epicsSingletonMutex * > ( pParm );
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pSM->pMutex = new epicsMutex;
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}
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epicsMutex & epicsSingletonMutex::get ()
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{
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epicsThreadOnce ( & this->onceFlag, epicsSingletonMutex::once, this );
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return * this->pMutex;
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}
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epicsMutex & epicsSingletonPrivateMutex ()
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{
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static epicsSingletonMutex mutex;
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return mutex.get ();
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}
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