michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /***********************************************************************
michael@0: **  1996 - Netscape Communications Corporation
michael@0: **
michael@0: ** Name: alarmtst.c
michael@0: **
michael@0: ** Description: Test alarms
michael@0: **
michael@0: ** Modification History:
michael@0: ** 13-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.
michael@0: **	         The debug mode will print all of the printfs associated with this test.
michael@0: **			 The regress mode will be the default mode. Since the regress tool limits
michael@0: **           the output to a one line status:PASS or FAIL,all of the printf statements
michael@0: **			 have been handled with an if (debug_mode) statement.
michael@0: ** 04-June-97 AGarcia removed the Test_Result function. Regress tool has been updated to
michael@0: **			recognize the return code from tha main program.
michael@0: ***********************************************************************/
michael@0: 
michael@0: /***********************************************************************
michael@0: ** Includes
michael@0: ***********************************************************************/
michael@0: 
michael@0: #include "prlog.h"
michael@0: #include "prinit.h"
michael@0: #include "obsolete/pralarm.h"
michael@0: #include "prlock.h"
michael@0: #include "prlong.h"
michael@0: #include "prcvar.h"
michael@0: #include "prinrval.h"
michael@0: #include "prtime.h"
michael@0: 
michael@0: /* Used to get the command line option */
michael@0: #include "plgetopt.h"
michael@0: #include <stdio.h>
michael@0: #include <stdlib.h>
michael@0: 
michael@0: #if defined(XP_UNIX)
michael@0: #include <sys/time.h>
michael@0: #endif
michael@0: 
michael@0: static PRIntn debug_mode;
michael@0: static PRIntn failed_already=0;
michael@0: static PRThreadScope thread_scope = PR_LOCAL_THREAD;
michael@0: 
michael@0: typedef struct notifyData {
michael@0:     PRLock *ml;
michael@0:     PRCondVar *child;
michael@0:     PRCondVar *parent;
michael@0:     PRBool pending;
michael@0:     PRUint32 counter;
michael@0: } NotifyData;
michael@0: 
michael@0: static void Notifier(void *arg)
michael@0: {
michael@0:     NotifyData *notifyData = (NotifyData*)arg;
michael@0:     PR_Lock(notifyData->ml);
michael@0:     while (notifyData->counter > 0)
michael@0:     {
michael@0:         while (!notifyData->pending)
michael@0:             PR_WaitCondVar(notifyData->child, PR_INTERVAL_NO_TIMEOUT);
michael@0:         notifyData->counter -= 1;
michael@0:         notifyData->pending = PR_FALSE;
michael@0:         PR_NotifyCondVar(notifyData->parent);
michael@0:     }
michael@0:     PR_Unlock(notifyData->ml);
michael@0: }  /* Notifier */
michael@0: /***********************************************************************
michael@0: ** PRIVATE FUNCTION:    ConditionNotify
michael@0: ** DESCRIPTION:
michael@0: ** 
michael@0: ** INPUTS:      loops
michael@0: ** OUTPUTS:     None
michael@0: ** RETURN:      overhead
michael@0: ** SIDE EFFECTS:
michael@0: **      
michael@0: ** RESTRICTIONS:
michael@0: **      None
michael@0: ** MEMORY:      NA
michael@0: ** ALGORITHM:
michael@0: **      
michael@0: ***********************************************************************/
michael@0: 
michael@0: 
michael@0: static PRIntervalTime ConditionNotify(PRUint32 loops)
michael@0: {
michael@0:     PRThread *thread;
michael@0:     NotifyData notifyData;
michael@0:     PRIntervalTime timein, overhead;
michael@0:     
michael@0:     timein = PR_IntervalNow();
michael@0: 
michael@0:     notifyData.counter = loops;
michael@0:     notifyData.ml = PR_NewLock();
michael@0:     notifyData.child = PR_NewCondVar(notifyData.ml);
michael@0:     notifyData.parent = PR_NewCondVar(notifyData.ml);
michael@0:     thread = PR_CreateThread(
michael@0:         PR_USER_THREAD, Notifier, &notifyData,
michael@0:         PR_GetThreadPriority(PR_GetCurrentThread()),
michael@0:         thread_scope, PR_JOINABLE_THREAD, 0);
michael@0: 
michael@0:     overhead = PR_IntervalNow() - timein;  /* elapsed so far */
michael@0: 
michael@0:     PR_Lock(notifyData.ml);
michael@0:     while (notifyData.counter > 0)
michael@0:     {
michael@0:         notifyData.pending = PR_TRUE;
michael@0:         PR_NotifyCondVar(notifyData.child);
michael@0:         while (notifyData.pending)
michael@0:             PR_WaitCondVar(notifyData.parent, PR_INTERVAL_NO_TIMEOUT);
michael@0:     }
michael@0:     PR_Unlock(notifyData.ml);
michael@0: 
michael@0:     timein = PR_IntervalNow();
michael@0: 
michael@0:     (void)PR_JoinThread(thread);
michael@0:     PR_DestroyCondVar(notifyData.child);
michael@0:     PR_DestroyCondVar(notifyData.parent);
michael@0:     PR_DestroyLock(notifyData.ml);
michael@0:     
michael@0:     overhead += (PR_IntervalNow() - timein);  /* more overhead */
michael@0: 
michael@0:     return overhead;
michael@0: }  /* ConditionNotify */
michael@0: 
michael@0: static PRIntervalTime ConditionTimeout(PRUint32 loops)
michael@0: {
michael@0:     PRUintn count;
michael@0:     PRIntervalTime overhead, timein = PR_IntervalNow();
michael@0: 
michael@0:     PRLock *ml = PR_NewLock();
michael@0:     PRCondVar *cv = PR_NewCondVar(ml);
michael@0:     PRIntervalTime interval = PR_MillisecondsToInterval(50);
michael@0: 
michael@0:     overhead = PR_IntervalNow() - timein;
michael@0: 
michael@0:     PR_Lock(ml);
michael@0:     for (count = 0; count < loops; ++count)
michael@0:     {
michael@0:         overhead += interval;
michael@0:         PR_ASSERT(PR_WaitCondVar(cv, interval) == PR_SUCCESS);
michael@0:     }
michael@0:     PR_Unlock(ml);
michael@0: 
michael@0:     timein = PR_IntervalNow();
michael@0:     PR_DestroyCondVar(cv);
michael@0:     PR_DestroyLock(ml);
michael@0:     overhead += (PR_IntervalNow() - timein);
michael@0: 
michael@0:     return overhead;
michael@0: }  /* ConditionTimeout */
michael@0: 
michael@0: typedef struct AlarmData {
michael@0:     PRLock *ml;
michael@0:     PRCondVar *cv;
michael@0:     PRUint32 rate, late, times;
michael@0:     PRIntervalTime duration, timein, period;
michael@0: } AlarmData;
michael@0: 
michael@0: static PRBool AlarmFn1(PRAlarmID *id, void *clientData, PRUint32 late)
michael@0: {
michael@0:     PRStatus rv = PR_SUCCESS;
michael@0:     PRBool keepGoing, resetAlarm;
michael@0:     PRIntervalTime interval, now = PR_IntervalNow();
michael@0:     AlarmData *ad = (AlarmData*)clientData;
michael@0: 
michael@0:     PR_Lock(ad->ml);
michael@0:     ad->late += late;
michael@0:     ad->times += 1;
michael@0:     keepGoing = ((PRIntervalTime)(now - ad->timein) < ad->duration) ?
michael@0:         PR_TRUE : PR_FALSE;
michael@0:     if (!keepGoing)
michael@0:         rv = PR_NotifyCondVar(ad->cv);
michael@0:     resetAlarm = ((ad->times % 31) == 0) ? PR_TRUE : PR_FALSE;
michael@0:                                          
michael@0:     interval = (ad->period + ad->rate - 1) / ad->rate;
michael@0:     if (!late && (interval > 10))
michael@0:     {
michael@0:         interval &= (now & 0x03) + 1;
michael@0:         PR_WaitCondVar(ad->cv, interval);
michael@0:     }
michael@0:           
michael@0:     PR_Unlock(ad->ml);
michael@0: 
michael@0:     if (rv != PR_SUCCESS)
michael@0:     {
michael@0: 		if (!debug_mode) failed_already=1;
michael@0: 		else
michael@0: 		 printf("AlarmFn: notify status: FAIL\n");
michael@0: 		
michael@0: 	}
michael@0: 
michael@0:     if (resetAlarm)
michael@0:     {   
michael@0:         ad->rate += 3;
michael@0:         ad->late = ad->times = 0;
michael@0:         if (PR_ResetAlarm(id, ad->period, ad->rate) != PR_SUCCESS)
michael@0:         {
michael@0: 			if (!debug_mode)
michael@0: 				failed_already=1;
michael@0: 			else		
michael@0: 				printf("AlarmFn: Resetting alarm status: FAIL\n");
michael@0: 
michael@0:             keepGoing = PR_FALSE;
michael@0:         }
michael@0: 
michael@0:     }
michael@0: 
michael@0:     return keepGoing;
michael@0: }  /* AlarmFn1 */
michael@0: 
michael@0: static PRIntervalTime Alarms1(PRUint32 loops)
michael@0: {
michael@0:     PRAlarm *alarm;
michael@0:     AlarmData ad;
michael@0:     PRIntervalTime overhead, timein = PR_IntervalNow();
michael@0:     PRIntervalTime duration = PR_SecondsToInterval(3);
michael@0: 
michael@0:     PRLock *ml = PR_NewLock();
michael@0:     PRCondVar *cv = PR_NewCondVar(ml);
michael@0: 
michael@0:     ad.ml = ml;
michael@0:     ad.cv = cv;
michael@0:     ad.rate = 1;
michael@0:     ad.times = loops;
michael@0:     ad.late = ad.times = 0;
michael@0:     ad.duration = duration;
michael@0:     ad.timein = PR_IntervalNow();
michael@0:     ad.period = PR_SecondsToInterval(1);
michael@0: 
michael@0:     alarm = PR_CreateAlarm();
michael@0: 
michael@0:     (void)PR_SetAlarm(
michael@0:         alarm, ad.period, ad.rate, AlarmFn1, &ad);
michael@0:         
michael@0:     overhead = PR_IntervalNow() - timein;
michael@0: 
michael@0:     PR_Lock(ml);
michael@0:     while ((PRIntervalTime)(PR_IntervalNow() - ad.timein) < duration)
michael@0:         PR_WaitCondVar(cv, PR_INTERVAL_NO_TIMEOUT);
michael@0:     PR_Unlock(ml);
michael@0: 
michael@0:     timein = PR_IntervalNow();
michael@0:     (void)PR_DestroyAlarm(alarm);
michael@0:     PR_DestroyCondVar(cv);
michael@0:     PR_DestroyLock(ml);
michael@0:     overhead += (PR_IntervalNow() - timein);
michael@0:     
michael@0:     return duration + overhead;
michael@0: }  /* Alarms1 */
michael@0: 
michael@0: static PRBool AlarmFn2(PRAlarmID *id, void *clientData, PRUint32 late)
michael@0: {
michael@0:     PRBool keepGoing;
michael@0:     PRStatus rv = PR_SUCCESS;
michael@0:     AlarmData *ad = (AlarmData*)clientData;
michael@0:     PRIntervalTime interval, now = PR_IntervalNow();
michael@0: 
michael@0:     PR_Lock(ad->ml);
michael@0:     ad->times += 1;
michael@0:     keepGoing = ((PRIntervalTime)(now - ad->timein) < ad->duration) ?
michael@0:         PR_TRUE : PR_FALSE;
michael@0:     interval = (ad->period + ad->rate - 1) / ad->rate;
michael@0: 
michael@0:     if (!late && (interval > 10))
michael@0:     {
michael@0:         interval &= (now & 0x03) + 1;
michael@0:         PR_WaitCondVar(ad->cv, interval);
michael@0:     }
michael@0: 
michael@0:     if (!keepGoing) rv = PR_NotifyCondVar(ad->cv);
michael@0: 
michael@0:     PR_Unlock(ad->ml);
michael@0: 
michael@0: 
michael@0:     if (rv != PR_SUCCESS)
michael@0: 		failed_already=1;;
michael@0: 
michael@0:     return keepGoing;
michael@0: }  /* AlarmFn2 */
michael@0: 
michael@0: static PRIntervalTime Alarms2(PRUint32 loops)
michael@0: {
michael@0:     PRStatus rv;
michael@0:     PRAlarm *alarm;
michael@0:     PRIntervalTime overhead, timein = PR_IntervalNow();
michael@0:     AlarmData ad;
michael@0:     PRIntervalTime duration = PR_SecondsToInterval(30);
michael@0: 
michael@0:     PRLock *ml = PR_NewLock();
michael@0:     PRCondVar *cv = PR_NewCondVar(ml);
michael@0: 
michael@0:     ad.ml = ml;
michael@0:     ad.cv = cv;
michael@0:     ad.rate = 1;
michael@0:     ad.times = loops;
michael@0:     ad.late = ad.times = 0;
michael@0:     ad.duration = duration;
michael@0:     ad.timein = PR_IntervalNow();
michael@0:     ad.period = PR_SecondsToInterval(1);
michael@0: 
michael@0:     alarm = PR_CreateAlarm();
michael@0: 
michael@0:     (void)PR_SetAlarm(
michael@0:         alarm, ad.period, ad.rate, AlarmFn2, &ad);
michael@0:         
michael@0:     overhead = PR_IntervalNow() - timein;
michael@0: 
michael@0:     PR_Lock(ml);
michael@0:     while ((PRIntervalTime)(PR_IntervalNow() - ad.timein) < duration)
michael@0:         PR_WaitCondVar(cv, PR_INTERVAL_NO_TIMEOUT);
michael@0:     PR_Unlock(ml);
michael@0:     
michael@0:     timein = PR_IntervalNow();
michael@0: 
michael@0:     rv = PR_DestroyAlarm(alarm);
michael@0:     if (rv != PR_SUCCESS)
michael@0:     {
michael@0: 		if (!debug_mode)
michael@0: 			failed_already=1;
michael@0: 		else	
michael@0: 			printf("***Destroying alarm status: FAIL\n");
michael@0:     }
michael@0: 		
michael@0: 
michael@0:     PR_DestroyCondVar(cv);
michael@0:     PR_DestroyLock(ml);
michael@0:     
michael@0:     overhead += (PR_IntervalNow() - timein);
michael@0:     
michael@0:     return duration + overhead;
michael@0: }  /* Alarms2 */
michael@0: 
michael@0: static PRIntervalTime Alarms3(PRUint32 loops)
michael@0: {
michael@0:     PRIntn i;
michael@0:     PRStatus rv;
michael@0:     PRAlarm *alarm;
michael@0:     AlarmData ad[3];
michael@0:     PRIntervalTime duration = PR_SecondsToInterval(30);
michael@0:     PRIntervalTime overhead, timein = PR_IntervalNow();
michael@0: 
michael@0:     PRLock *ml = PR_NewLock();
michael@0:     PRCondVar *cv = PR_NewCondVar(ml);
michael@0: 
michael@0:     for (i = 0; i < 3; ++i)
michael@0:     {
michael@0:         ad[i].ml = ml;
michael@0:         ad[i].cv = cv;
michael@0:         ad[i].rate = 1;
michael@0:         ad[i].times = loops;
michael@0:         ad[i].duration = duration;
michael@0:         ad[i].late = ad[i].times = 0;
michael@0:         ad[i].timein = PR_IntervalNow();
michael@0:         ad[i].period = PR_SecondsToInterval(1);
michael@0: 
michael@0:         /* more loops, faster rate => same elapsed time */
michael@0:         ad[i].times = (i + 1) * loops;
michael@0:         ad[i].rate = (i + 1) * 10;
michael@0:     }
michael@0: 
michael@0:     alarm = PR_CreateAlarm();
michael@0: 
michael@0:     for (i = 0; i < 3; ++i)
michael@0:     {
michael@0:         (void)PR_SetAlarm(
michael@0:             alarm, ad[i].period, ad[i].rate,
michael@0:             AlarmFn2, &ad[i]);
michael@0:     }
michael@0:         
michael@0:     overhead = PR_IntervalNow() - timein;
michael@0: 
michael@0:     PR_Lock(ml);
michael@0:     for (i = 0; i < 3; ++i)
michael@0:     {
michael@0:         while ((PRIntervalTime)(PR_IntervalNow() - ad[i].timein) < duration)
michael@0:             PR_WaitCondVar(cv, PR_INTERVAL_NO_TIMEOUT);
michael@0:     }
michael@0:     PR_Unlock(ml);
michael@0: 
michael@0:     timein = PR_IntervalNow();
michael@0: 
michael@0: 	if (debug_mode)
michael@0: 	printf
michael@0:         ("Alarms3 finished at %u, %u, %u\n",
michael@0:         ad[0].timein, ad[1].timein, ad[2].timein);
michael@0:     
michael@0:     rv = PR_DestroyAlarm(alarm);
michael@0:     if (rv != PR_SUCCESS)
michael@0:     {
michael@0: 		if (!debug_mode)		
michael@0: 			failed_already=1;
michael@0: 		else	
michael@0: 		   printf("***Destroying alarm status: FAIL\n");
michael@0: 	}
michael@0:     PR_DestroyCondVar(cv);
michael@0:     PR_DestroyLock(ml);
michael@0:     
michael@0:     overhead += (duration / 3);
michael@0:     overhead += (PR_IntervalNow() - timein);
michael@0: 
michael@0:     return overhead;
michael@0: }  /* Alarms3 */
michael@0: 
michael@0: static PRUint32 TimeThis(
michael@0:     const char *msg, PRUint32 (*func)(PRUint32 loops), PRUint32 loops)
michael@0: {
michael@0:     PRUint32 overhead, usecs;
michael@0:     PRIntervalTime predicted, timein, timeout, ticks;
michael@0: 
michael@0:  if (debug_mode)
michael@0:     printf("Testing %s ...", msg);
michael@0: 
michael@0:     timein = PR_IntervalNow();
michael@0:     predicted = func(loops);
michael@0:     timeout = PR_IntervalNow();
michael@0: 
michael@0:   if (debug_mode)
michael@0:     printf(" done\n");
michael@0: 
michael@0:     ticks = timeout - timein;
michael@0:     usecs = PR_IntervalToMicroseconds(ticks);
michael@0:     overhead = PR_IntervalToMicroseconds(predicted);
michael@0: 
michael@0:     if(ticks < predicted)
michael@0:     {
michael@0: 		if (debug_mode) {
michael@0:         printf("\tFinished in negative time\n");
michael@0:         printf("\tpredicted overhead was %d usecs\n", overhead);
michael@0:         printf("\ttest completed in %d usecs\n\n", usecs);
michael@0: 		}
michael@0:     }
michael@0:     else
michael@0:     {
michael@0: 	if (debug_mode)		
michael@0:         printf(
michael@0:             "\ttotal: %d usecs\n\toverhead: %d usecs\n\tcost: %6.3f usecs\n\n",
michael@0:             usecs, overhead, ((double)(usecs - overhead) / (double)loops));
michael@0:     }
michael@0: 
michael@0:     return overhead;
michael@0: }  /* TimeThis */
michael@0: 
michael@0: int prmain(int argc, char** argv)
michael@0: {
michael@0:     PRUint32 cpu, cpus = 0, loops = 0;
michael@0: 
michael@0: 	/* The command line argument: -d is used to determine if the test is being run
michael@0: 	in debug mode. The regress tool requires only one line output:PASS or FAIL.
michael@0: 	All of the printfs associated with this test has been handled with a if (debug_mode)
michael@0: 	test.
michael@0: 	Usage: test_name [-d]
michael@0: 	*/
michael@0: 	PLOptStatus os;
michael@0: 	PLOptState *opt = PL_CreateOptState(argc, argv, "Gdl:c:");
michael@0: 	while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
michael@0:     {
michael@0: 		if (PL_OPT_BAD == os) continue;
michael@0:         switch (opt->option)
michael@0:         {
michael@0:         case 'G':  /* GLOBAL threads */
michael@0: 			thread_scope = PR_GLOBAL_THREAD;
michael@0:             break;
michael@0:         case 'd':  /* debug mode */
michael@0: 			debug_mode = 1;
michael@0:             break;
michael@0:         case 'l':  /* loop count */
michael@0: 			loops = atoi(opt->value);
michael@0:             break;
michael@0:         case 'c':  /* concurrency limit */
michael@0: 			cpus = atoi(opt->value);
michael@0:             break;
michael@0:          default:
michael@0:             break;
michael@0:         }
michael@0:     }
michael@0: 	PL_DestroyOptState(opt);
michael@0: 
michael@0: 
michael@0:     if (cpus == 0) cpus = 1;
michael@0:     if (loops == 0) loops = 4;
michael@0: 
michael@0: 	if (debug_mode)
michael@0: 		printf("Alarm: Using %d loops\n", loops);
michael@0: 
michael@0: 	if (debug_mode)		
michael@0:         printf("Alarm: Using %d cpu(s)\n", cpus);
michael@0: 
michael@0:     for (cpu = 1; cpu <= cpus; ++cpu)
michael@0:     {
michael@0:     if (debug_mode)
michael@0:         printf("\nAlarm: Using %d CPU(s)\n", cpu);
michael@0: 
michael@0: 	PR_SetConcurrency(cpu);
michael@0:         
michael@0:         /* some basic time test */
michael@0:         (void)TimeThis("ConditionNotify", ConditionNotify, loops);
michael@0:         (void)TimeThis("ConditionTimeout", ConditionTimeout, loops);
michael@0:         (void)TimeThis("Alarms1", Alarms1, loops);
michael@0:         (void)TimeThis("Alarms2", Alarms2, loops);
michael@0:         (void)TimeThis("Alarms3", Alarms3, loops);
michael@0:     }
michael@0:     return 0;
michael@0: }
michael@0: 
michael@0: int main(int argc, char** argv)
michael@0: {
michael@0:      PR_Initialize(prmain, argc, argv, 0);
michael@0:      PR_STDIO_INIT();
michael@0: 	 if (failed_already) return 1;
michael@0: 	 else return 0;
michael@0: 
michael@0: }  /* main */
michael@0: 
michael@0: 
michael@0: /* alarmtst.c */