DarioS
58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
//----------------------------------------------------------------------------
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// EgalTech 2023-2023
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//----------------------------------------------------------------------------
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// File : EXE_Mutex.cpp Data : 05.02.23 Versione : 2.5a6
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// Contenuto : Funzioni per gestione mutex.
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//
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//
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//
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// Modifiche : 05.02.23 DS Creazione modulo.
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//
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//
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//----------------------------------------------------------------------------
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//--------------------------- Include ----------------------------------------
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#include "stdafx.h"
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#include "EXE.h"
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#include "/EgtDev/Include/EgtStringConverter.h"
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using namespace std ;
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//----------------------------------------------------------------------------
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static HANDLE s_hMutex = NULL ;
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//----------------------------------------------------------------------------
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bool
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ExeCreateMutex( const string& sMutexName)
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{
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if ( s_hMutex != NULL)
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return false ;
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HANDLE hMutex = CreateMutex( NULL, TRUE, stringtoW( sMutexName)) ;
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if ( hMutex == NULL)
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return false ;
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else if ( GetLastError() == ERROR_ALREADY_EXISTS) {
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ReleaseMutex( hMutex) ;
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CloseHandle( hMutex) ;
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return false ;
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}
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else {
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s_hMutex = hMutex ;
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return true ;
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}
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}
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//----------------------------------------------------------------------------
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bool
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ExeReleaseMutex( void)
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{
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if ( s_hMutex == NULL)
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return true ;
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bool bOk = ( ReleaseMutex( s_hMutex) != FALSE) ;
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CloseHandle( s_hMutex) ;
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s_hMutex = NULL ;
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return bOk ;
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}
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