/* -*- 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/. */ #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; } }