added thread private test

src/libCom/test/epicsThreadPrivateTest.cpp

@@ -0,0 +1,76 @@
+/* $Id$ */
+
+/* Author: Jeff Hill Date:    March 28 2001 */
+
+
+#include "epicsTime.h"
+#include "epicsThread.h"
+#include "epicsAssert.h"
+
+static bool doneFlag = false;
+void epicsThreadPrivateTestThread ( void *pParm )
+{
+    epicsThreadPrivateId id = static_cast < epicsThreadPrivateId > ( pParm );
+    assert ( 0 == epicsThreadPrivateGet ( id ) );
+    doneFlag = true;
+}
+
+inline void callItTenTimes ( const epicsThreadPrivateId &id )
+{
+    void *pParm;
+    pParm = epicsThreadPrivateGet ( id );
+    pParm = epicsThreadPrivateGet ( id );
+    pParm = epicsThreadPrivateGet ( id );
+    pParm = epicsThreadPrivateGet ( id );
+    pParm = epicsThreadPrivateGet ( id );
+    pParm = epicsThreadPrivateGet ( id );
+    pParm = epicsThreadPrivateGet ( id );
+    pParm = epicsThreadPrivateGet ( id );
+    pParm = epicsThreadPrivateGet ( id );
+    pParm = epicsThreadPrivateGet ( id );
+}
+
+inline void callItTenTimesSquared ( const epicsThreadPrivateId &id )
+{
+    callItTenTimes ( id );
+    callItTenTimes ( id );
+    callItTenTimes ( id );
+    callItTenTimes ( id );
+    callItTenTimes ( id );
+    callItTenTimes ( id );
+    callItTenTimes ( id );
+    callItTenTimes ( id );
+    callItTenTimes ( id );
+    callItTenTimes ( id );
+}
+
+void epicsThreadPrivateTest ()
+{
+    static int var;
+    epicsThreadPrivateId id = epicsThreadPrivateCreate ();
+    assert ( id );
+    epicsThreadPrivateSet ( id, &var );
+    assert ( &var == epicsThreadPrivateGet ( id ) );
+
+    epicsThreadCreate ( "epicsThreadPrivateTest", epicsThreadPriorityMax, 
+        epicsThreadStackSmall, epicsThreadPrivateTestThread, id );
+    while ( ! doneFlag ) {
+        epicsThreadSleep ( 0.01 );
+    }
+
+    epicsThreadPrivateSet ( id, 0 );
+    assert ( 0 == epicsThreadPrivateGet ( id ) );
+
+    epicsTime begin = epicsTime::getCurrent ();
+    static const unsigned N = 100000u;
+    for ( unsigned i = 0u; i < N; i++ ) {
+        callItTenTimesSquared ( id );
+    }
+    double delay = epicsTime::getCurrent() - begin;
+    delay /= N * 100u; // convert to sec per call
+    delay *= 1e6; // convert to micro sec
+    printf ( "It takes %f micro sec to call epicsThreadPrivateGet()\n", delay );
+
+    epicsThreadPrivateDelete ( id );
+}
+