drop unused epicsSingletonBase.cpp

src/cxxTemplates/epicsSingletonBase.cpp

@@ -1,59 +0,0 @@
-/*************************************************************************\
-* Copyright (c) 2002 The University of Chicago, as Operator of Argonne
-*     National Laboratory.
-* Copyright (c) 2002 The Regents of the University of California, as
-*     Operator of Los Alamos National Laboratory.
-* EPICS BASE Versions 3.13.7
-* and higher are distributed subject to a Software License Agreement found
-* in file LICENSE that is included with this distribution. 
-\*************************************************************************/
-/*
- *  Author: Jeffrey O. Hill
- */
-
-#include <new>
-
-#define epicsExportSharedSymbols
-#include "epicsMutex.h"
-#include "epicsGuard.h"
-#include "epicsThread.h"
-#include "epicsSingleton.h"
-#include "epicsExit.h"
-
-static epicsThreadOnceId epicsSingletonOnceId = EPICS_THREAD_ONCE_INIT;
-static epicsMutex *pSingletonBaseMutexEPICS;
-
-static void epicsSingletonCleanup (void *)
-{
-    delete pSingletonBaseMutexEPICS;
-}
-
-static void epicsSingletonOnce ( void * )
-{
-    pSingletonBaseMutexEPICS = newEpicsMutex;
-    epicsAtExit ( epicsSingletonCleanup,0 );
-}
-
-epicsSingletonBase::epicsSingletonBase () : pSingleton ( 0 )
-{
-}
-
-void * epicsSingletonBase::singletonPointer () const
-{
-    return this->pSingleton;
-}
-
-epicsSingletonBase::~epicsSingletonBase ()
-{
-}
-
-void epicsSingletonBase::lockedFactory ()
-{
-    if ( ! this->pSingleton ) {
-        epicsThreadOnce ( & epicsSingletonOnceId, epicsSingletonOnce, 0 );
-        epicsGuard < epicsMutex > guard ( *pSingletonBaseMutexEPICS );
-        if ( ! this->pSingleton ) {
-            this->pSingleton = this->factory ();
-        }
-    }
-}