pjs/nsprpub/pr/tests/inrval.c

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C

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/*
** file: inrval.c
** description: Interval conversion test.
** Modification History:
** 15-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.
** The debug mode will print all of the printfs associated with this test.
** The regress mode will be the default mode. Since the regress tool limits
** the output to a one line status:PASS or FAIL,all of the printf statements
** have been handled with an if (debug_mode) statement.
** 04-June-97 AGarcia removed the Test_Result function. Regress tool has been updated to
** recognize the return code from tha main program.
**/
/***********************************************************************
** Includes
***********************************************************************/
/* Used to get the command line option */
#include "plgetopt.h"
#include "prinit.h"
#ifdef XP_MAC
#include "pralarm.h"
#else
#include "obsolete/pralarm.h"
#endif
#include "prlock.h"
#include "prlong.h"
#include "prcvar.h"
#include "prinrval.h"
#include "prtime.h"
#include "plgetopt.h"
#include <stdio.h>
#include <stdlib.h>
#ifdef XP_MAC
#include "prlog.h"
#define printf PR_LogPrint
extern void SetupMacPrintfLog(char *logFile);
#endif
PRIntn failed_already=0;
PRIntn debug_mode;
static void TestConversions(void)
{
PRIntervalTime ticks = PR_TicksPerSecond();
if (debug_mode) {
printf("PR_TicksPerSecond: %ld\n\n", ticks);
printf("PR_SecondsToInterval(1): %ld\n", PR_SecondsToInterval(1));
printf("PR_MillisecondsToInterval(1000): %ld\n", PR_MillisecondsToInterval(1000));
printf("PR_MicrosecondsToInterval(1000000): %ld\n\n", PR_MicrosecondsToInterval(1000000));
printf("PR_SecondsToInterval(3): %ld\n", PR_SecondsToInterval(3));
printf("PR_MillisecondsToInterval(3000): %ld\n", PR_MillisecondsToInterval(3000));
printf("PR_MicrosecondsToInterval(3000000): %ld\n\n", PR_MicrosecondsToInterval(3000000));
printf("PR_IntervalToSeconds(%ld): %ld\n", ticks, PR_IntervalToSeconds(ticks));
printf("PR_IntervalToMilliseconds(%ld): %ld\n", ticks, PR_IntervalToMilliseconds(ticks));
printf("PR_IntervalToMicroseconds(%ld): %ld\n\n", ticks, PR_IntervalToMicroseconds(ticks));
ticks *= 3;
printf("PR_IntervalToSeconds(%ld): %ld\n", ticks, PR_IntervalToSeconds(ticks));
printf("PR_IntervalToMilliseconds(%ld): %ld\n", ticks, PR_IntervalToMilliseconds(ticks));
printf("PR_IntervalToMicroseconds(%ld): %ld\n\n", ticks, PR_IntervalToMicroseconds(ticks));
} /*end debug mode */
} /* TestConversions */
static void TestIntervals(void)
{
PRStatus rv;
PRUint32 delta;
PRInt32 seconds;
PRUint64 elapsed, thousand;
PRTime timein, timeout;
PRLock *ml = PR_NewLock();
PRCondVar *cv = PR_NewCondVar(ml);
for (seconds = 0; seconds < 10; ++seconds)
{
PRIntervalTime ticks = PR_SecondsToInterval(seconds);
PR_Lock(ml);
timein = PR_Now();
rv = PR_WaitCondVar(cv, ticks);
timeout = PR_Now();
PR_Unlock(ml);
LL_SUB(elapsed, timeout, timein);
LL_I2L(thousand, 1000);
LL_DIV(elapsed, elapsed, thousand);
LL_L2UI(delta, elapsed);
if (debug_mode) printf(
"TestIntervals: %swaiting %ld seconds took %ld msecs\n",
((rv == PR_SUCCESS) ? "" : "FAILED "), seconds, delta);
}
PR_DestroyCondVar(cv);
PR_DestroyLock(ml);
if (debug_mode) printf("\n");
} /* TestIntervals */
static PRUint32 GetInterval(PRUint32 loops)
{
PRIntervalTime interval = 0;
while (loops-- > 0) interval += PR_IntervalNow();
return 0;
} /* GetInterval */
static PRUint32 TimeThis(
const char *msg, PRUint32 (*func)(PRUint32 loops), PRUint32 loops)
{
PRUint32 overhead, usecs32;
PRTime timein, timeout, usecs;
timein = PR_Now();
overhead = func(loops);
timeout = PR_Now();
LL_SUB(usecs, timeout, timein);
LL_L2I(usecs32, usecs);
if(usecs32 < overhead)
{
if (debug_mode) {
printf("%s ran in negative time\n", msg);
printf(" predicted overhead was %ld usecs\n", overhead);
printf(" test completed in %ld usecs\n\n", usecs);
}
}
else
{
if (debug_mode)
printf(
"%s [\n\ttotal: %ld usecs\n\toverhead: %ld usecs\n\tcost: %6.3f usecs]\n\n",
msg, usecs, overhead,
((double)(usecs32 - overhead) / (double)loops));
}
return overhead;
} /* TimeThis */
static PRIntn PR_CALLBACK RealMain(int argc, char** argv)
{
PRUint32 cpu, cpus = 2, loops = 1000;
/* The command line argument: -d is used to determine if the test is being run
in debug mode. The regress tool requires only one line output:PASS or FAIL.
All of the printfs associated with this test has been handled with a if (debug_mode)
test.
Usage: test_name -d
*/
/* main test */
PLOptStatus os;
PLOptState *opt = PL_CreateOptState(argc, argv, "dl:c:");
while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
{
if (PL_OPT_BAD == os) continue;
switch (opt->option)
{
case 'd': /* debug mode */
debug_mode = 1;
break;
case 'c': /* concurrency counter */
cpus = atoi(opt->value);
break;
case 'l': /* loop counter */
loops = atoi(opt->value);
break;
default:
break;
}
}
PL_DestroyOptState(opt);
printf("inrval: Examine stdout to determine results.\n");
if (cpus == 0) cpus = 2;
if (loops == 0) loops = 1000;
if (debug_mode) printf("Inrval: Using %d loops\n", loops);
cpus = (argc < 3) ? 2 : atoi(argv[2]);
if (cpus == 0) cpus = 2;
if (debug_mode) printf("Inrval: Using %d cpu(s)\n", cpus);
if (debug_mode > 0)
{
printf("Inrval: Using %d loops\n", loops);
printf("Inrval: Using %d cpu(s)\n", cpus);
}
#ifdef XP_MAC
SetupMacPrintfLog("inrval.log");
debug_mode = 1;
#endif
for (cpu = 1; cpu <= cpus; ++cpu)
{
if (debug_mode) printf("\nInrval: Using %d CPU(s)\n", cpu);
if (debug_mode > 0)
printf("\nInrval: Using %d CPU(s)\n", cpu);
PR_SetConcurrency(cpu);
TestConversions();
TestIntervals();
(void)TimeThis("GetInterval", GetInterval, loops);
}
return 0;
}
PRIntn main(PRIntn argc, char *argv[])
{
PRIntn rv;
PR_STDIO_INIT();
rv = PR_Initialize(RealMain, argc, argv, 0);
return rv;
} /* main */