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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
#include "nspr.h"
#include "prinrval.h"
#include "plgetopt.h"
#include "pprthred.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
PRMonitor* mon;
PRInt32 count, iterations, alive;
PRBool debug_mode = PR_FALSE, passed = PR_TRUE;
void PR_CALLBACK ReallyDumbThread(void* arg) { return; }
void PR_CALLBACK DumbThread(void* arg) {
PRInt32 tmp = (PRInt32)arg;
PRThreadScope scope = (PRThreadScope)tmp;
PRThread* thr;
thr = PR_CreateThread(PR_USER_THREAD, ReallyDumbThread, NULL,
PR_PRIORITY_NORMAL, scope, PR_JOINABLE_THREAD, 0);
if (!thr) {
if (debug_mode) {
printf("Could not create really dumb thread (%d, %d)!\n", PR_GetError(),
PR_GetOSError());
}
passed = PR_FALSE;
} else {
PR_JoinThread(thr);
}
PR_EnterMonitor(mon);
alive--;
PR_Notify(mon);
PR_ExitMonitor(mon);
}
static void CreateThreads(PRThreadScope scope1, PRThreadScope scope2) {
PRThread* thr;
int n;
alive = 0;
mon = PR_NewMonitor();
alive = count;
for (n = 0; n < count; n++) {
thr = PR_CreateThread(PR_USER_THREAD, DumbThread, (void*)scope2,
PR_PRIORITY_NORMAL, scope1, PR_UNJOINABLE_THREAD, 0);
if (!thr) {
if (debug_mode) {
printf("Could not create dumb thread (%d, %d)!\n", PR_GetError(),
PR_GetOSError());
}
passed = PR_FALSE;
alive--;
}
PR_Sleep(0);
}
/* Wait for all threads to exit */
PR_EnterMonitor(mon);
while (alive) {
PR_Wait(mon, PR_INTERVAL_NO_TIMEOUT);
}
PR_ExitMonitor(mon);
PR_DestroyMonitor(mon);
}
static void CreateThreadsUU(void) {
CreateThreads(PR_LOCAL_THREAD, PR_LOCAL_THREAD);
}
static void CreateThreadsUK(void) {
CreateThreads(PR_LOCAL_THREAD, PR_GLOBAL_THREAD);
}
static void CreateThreadsKU(void) {
CreateThreads(PR_GLOBAL_THREAD, PR_LOCAL_THREAD);
}
static void CreateThreadsKK(void) {
CreateThreads(PR_GLOBAL_THREAD, PR_GLOBAL_THREAD);
}
/************************************************************************/
static void Measure(void (*func)(void), const char* msg) {
PRIntervalTime start, stop;
double d;
start = PR_IntervalNow();
(*func)();
stop = PR_IntervalNow();
if (debug_mode) {
d = (double)PR_IntervalToMicroseconds(stop - start);
printf("%40s: %6.2f usec\n", msg, d / count);
}
}
int main(int argc, char** argv) {
int index;
PR_STDIO_INIT();
PR_Init(PR_USER_THREAD, PR_PRIORITY_HIGH, 0);
{
PLOptStatus os;
PLOptState* opt = PL_CreateOptState(argc, argv, "dc:i:");
while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) {
if (PL_OPT_BAD == os) {
continue;
}
switch (opt->option) {
case 'd': /* debug mode */
debug_mode = PR_TRUE;
break;
case 'c': /* loop counter */
count = atoi(opt->value);
break;
case 'i': /* loop counter */
iterations = atoi(opt->value);
break;
default:
break;
}
}
PL_DestroyOptState(opt);
}
if (0 == count) {
count = 50;
}
if (0 == iterations) {
iterations = 10;
}
if (debug_mode) {
printf(
"\
** Tests lots of thread creations. \n\
** Create %ld native threads %ld times. \n\
** Create %ld user threads %ld times \n",
iterations, count, iterations, count);
}
for (index = 0; index < iterations; index++) {
Measure(CreateThreadsUU, "Create user/user threads");
Measure(CreateThreadsUK, "Create user/native threads");
Measure(CreateThreadsKU, "Create native/user threads");
Measure(CreateThreadsKK, "Create native/native threads");
}
if (debug_mode) {
printf("\nNow switch to recycling threads \n\n");
}
PR_SetThreadRecycleMode(1);
for (index = 0; index < iterations; index++) {
Measure(CreateThreadsUU, "Create user/user threads");
Measure(CreateThreadsUK, "Create user/native threads");
Measure(CreateThreadsKU, "Create native/user threads");
Measure(CreateThreadsKK, "Create native/native threads");
}
printf("%s\n", ((passed) ? "PASS" : "FAIL"));
PR_Cleanup();
if (passed) {
return 0;
} else {
return 1;
}
}