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-rw-r--r--nsprpub/pr/tests/threads.c203
1 files changed, 203 insertions, 0 deletions
diff --git a/nsprpub/pr/tests/threads.c b/nsprpub/pr/tests/threads.c
new file mode 100644
index 000000000..1b9b133d9
--- /dev/null
+++ b/nsprpub/pr/tests/threads.c
@@ -0,0 +1,203 @@
+/* -*- 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;
+ }
+}