diff options
Diffstat (limited to 'nsprpub/pr/tests/threads.c')
| -rw-r--r-- | nsprpub/pr/tests/threads.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/nsprpub/pr/tests/threads.c b/nsprpub/pr/tests/threads.c new file mode 100644 index 0000000000..4a28dc6e58 --- /dev/null +++ b/nsprpub/pr/tests/threads.c @@ -0,0 +1,211 @@ +/* -*- 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; + } +} |