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 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 /*

 ** 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"

 #include "obsolete/pralarm.h"

 #include "prio.h"

 #include "prprf.h"

 #include "prlock.h"

 #include "prlong.h"

 #include "prcvar.h"

 #include "prinrval.h"

 #include "prtime.h"

 #include "plgetopt.h"

 #include <stdio.h>

 #include <stdlib.h>

 static PRIntn debug_mode;

 static PRFileDesc *output;

 static void TestConversions(void)

 {

     PRIntervalTime ticks = PR_TicksPerSecond();

 	if (debug_mode) {

     PR_fprintf(output, "PR_TicksPerSecond: %ld\n\n", ticks);

     PR_fprintf(output, "PR_SecondsToInterval(1): %ld\n", PR_SecondsToInterval(1));

     PR_fprintf(output, "PR_MillisecondsToInterval(1000): %ld\n", PR_MillisecondsToInterval(1000));

     PR_fprintf(output, "PR_MicrosecondsToInterval(1000000): %ld\n\n", PR_MicrosecondsToInterval(1000000));

     PR_fprintf(output, "PR_SecondsToInterval(3): %ld\n", PR_SecondsToInterval(3));

     PR_fprintf(output, "PR_MillisecondsToInterval(3000): %ld\n", PR_MillisecondsToInterval(3000));

     PR_fprintf(output, "PR_MicrosecondsToInterval(3000000): %ld\n\n", PR_MicrosecondsToInterval(3000000));

     PR_fprintf(output, "PR_IntervalToSeconds(%ld): %ld\n", ticks, PR_IntervalToSeconds(ticks));

     PR_fprintf(output, "PR_IntervalToMilliseconds(%ld): %ld\n", ticks, PR_IntervalToMilliseconds(ticks));

     PR_fprintf(output, "PR_IntervalToMicroseconds(%ld): %ld\n\n", ticks, PR_IntervalToMicroseconds(ticks));

     ticks *= 3;

     PR_fprintf(output, "PR_IntervalToSeconds(%ld): %ld\n", ticks, PR_IntervalToSeconds(ticks));

     PR_fprintf(output, "PR_IntervalToMilliseconds(%ld): %ld\n", ticks, PR_IntervalToMilliseconds(ticks));

     PR_fprintf(output, "PR_IntervalToMicroseconds(%ld): %ld\n\n", ticks, PR_IntervalToMicroseconds(ticks));

 	} /*end debug mode */

 }  /* TestConversions */

 static void TestIntervalOverhead(void)

 {

     /* Hopefully the optimizer won't delete this function */

     PRUint32 elapsed, per_call, loops = 1000000;

     PRIntervalTime timeout, timein = PR_IntervalNow();

     while (--loops > 0)

         timeout = PR_IntervalNow();

     elapsed = 1000U * PR_IntervalToMicroseconds(timeout - timein);

     per_call = elapsed / 1000000U;

     PR_fprintf(

         output, "Overhead of 'PR_IntervalNow()' is %u nsecs\n\n", per_call);

 }  /* TestIntervalOverhead */

 static void TestNowOverhead(void)

 {

     PRTime timeout, timein;

     PRInt32 overhead, loops = 1000000;

     PRInt64 elapsed, per_call, ten23rd, ten26th;

     LL_I2L(ten23rd, 1000);

     LL_I2L(ten26th, 1000000);

     timein = PR_Now();

     while (--loops > 0)

         timeout = PR_Now();

     LL_SUB(elapsed, timeout, timein);

     LL_MUL(elapsed, elapsed, ten23rd);

     LL_DIV(per_call, elapsed, ten26th);

     LL_L2I(overhead, per_call);

     PR_fprintf(

         output, "Overhead of 'PR_Now()' is %u nsecs\n\n", overhead);

 }  /* TestNowOverhead */

 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) PR_fprintf(output, 

             "TestIntervals: %swaiting %ld seconds took %ld msecs\n",

             ((rv == PR_SUCCESS) ? "" : "FAILED "), seconds, delta);

     }

     PR_DestroyCondVar(cv);

     PR_DestroyLock(ml);

     if (debug_mode) PR_fprintf(output, "\n");

 }  /* TestIntervals */

 static PRIntn PR_CALLBACK RealMain(int argc, char** argv)

 {

     PRUint32 vcpu, cpus = 0, 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);

     output = PR_GetSpecialFD(PR_StandardOutput);

     PR_fprintf(output, "inrval: Examine stdout to determine results.\n");

     if (cpus == 0) cpus = 8;

     if (loops == 0) loops = 1000;

     if (debug_mode > 0)

     {

         PR_fprintf(output, "Inrval: Using %d loops\n", loops);

         PR_fprintf(output, "Inrval: Using 1 and %d cpu(s)\n", cpus);

     }

     for (vcpu = 1; vcpu <= cpus; vcpu += cpus - 1)

     {

         if (debug_mode)

             PR_fprintf(output, "\nInrval: Using %d CPU(s)\n\n", vcpu);

         PR_SetConcurrency(vcpu);

         TestNowOverhead();

         TestIntervalOverhead();

         TestConversions();

         TestIntervals();

     }

     return 0;

 }

 int main(int argc, char **argv)

 {

     PRIntn rv;

     PR_STDIO_INIT();

     rv = PR_Initialize(RealMain, argc, argv, 0);

     return rv;

 }  /* main */