88 lines
2.3 KiB
C++
88 lines
2.3 KiB
C++
/*************************************************************************\
|
|
* 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.
|
|
\*************************************************************************/
|
|
/* $Id$ */
|
|
|
|
/* Author: Jeff Hill Date: March 28 2001 */
|
|
|
|
#include <stdio.h>
|
|
|
|
#include "epicsTime.h"
|
|
#include "epicsThread.h"
|
|
#include "epicsAssert.h"
|
|
|
|
static epicsThreadPrivate < bool > priv;
|
|
|
|
static bool doneFlag = false;
|
|
|
|
extern "C" void epicsThreadPrivateTestThread ( void * )
|
|
{
|
|
assert ( 0 == priv.get () );
|
|
static bool var;
|
|
priv.set ( &var );
|
|
assert ( &var == priv.get () );
|
|
doneFlag = true;
|
|
}
|
|
|
|
inline void callItTenTimes ()
|
|
{
|
|
bool *pFlag;
|
|
pFlag = priv.get ();
|
|
pFlag = priv.get ();
|
|
pFlag = priv.get ();
|
|
pFlag = priv.get ();
|
|
pFlag = priv.get ();
|
|
pFlag = priv.get ();
|
|
pFlag = priv.get ();
|
|
pFlag = priv.get ();
|
|
pFlag = priv.get ();
|
|
pFlag = priv.get ();
|
|
}
|
|
|
|
inline void callItTenTimesSquared ()
|
|
{
|
|
callItTenTimes ();
|
|
callItTenTimes ();
|
|
callItTenTimes ();
|
|
callItTenTimes ();
|
|
callItTenTimes ();
|
|
callItTenTimes ();
|
|
callItTenTimes ();
|
|
callItTenTimes ();
|
|
callItTenTimes ();
|
|
callItTenTimes ();
|
|
}
|
|
|
|
extern "C" void epicsThreadPrivateTest ()
|
|
{
|
|
static bool var;
|
|
priv.set ( &var );
|
|
assert ( &var == priv.get() );
|
|
epicsThreadCreate ( "epicsThreadPrivateTest", epicsThreadPriorityMax,
|
|
epicsThreadGetStackSize ( epicsThreadStackSmall ),
|
|
epicsThreadPrivateTestThread, 0 );
|
|
while ( ! doneFlag ) {
|
|
epicsThreadSleep ( 0.1 );
|
|
}
|
|
assert ( &var == priv.get() );
|
|
priv.set ( 0 );
|
|
assert ( 0 == priv.get() );
|
|
|
|
epicsTime begin = epicsTime::getCurrent ();
|
|
static const unsigned N = 1000u;
|
|
for ( unsigned i = 0u; i < N; i++ ) {
|
|
callItTenTimesSquared ();
|
|
}
|
|
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 );
|
|
}
|
|
|