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-rw-r--r--nsprpub/pr/tests/sema.c148
1 files changed, 148 insertions, 0 deletions
diff --git a/nsprpub/pr/tests/sema.c b/nsprpub/pr/tests/sema.c
new file mode 100644
index 000000000..915fa30f8
--- /dev/null
+++ b/nsprpub/pr/tests/sema.c
@@ -0,0 +1,148 @@
+/* -*- 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 "plgetopt.h"
+
+#include <stdio.h>
+
+#define SEM_NAME1 "/tmp/foo.sem"
+#define SEM_NAME2 "/tmp/bar.sem"
+#define SEM_MODE 0666
+#define ITERATIONS 1000
+
+static PRBool debug_mode = PR_FALSE;
+static PRIntn iterations = ITERATIONS;
+static PRIntn counter;
+static PRSem *sem1, *sem2;
+
+/*
+ * Thread 2 waits on semaphore 2 and posts to semaphore 1.
+ */
+void ThreadFunc(void *arg)
+{
+ PRIntn i;
+
+ for (i = 0; i < iterations; i++) {
+ if (PR_WaitSemaphore(sem2) == PR_FAILURE) {
+ fprintf(stderr, "PR_WaitSemaphore failed\n");
+ exit(1);
+ }
+ if (counter == 2*i+1) {
+ if (debug_mode) printf("thread 2: counter = %d\n", counter);
+ } else {
+ fprintf(stderr, "thread 2: counter should be %d but is %d\n",
+ 2*i+1, counter);
+ exit(1);
+ }
+ counter++;
+ if (PR_PostSemaphore(sem1) == PR_FAILURE) {
+ fprintf(stderr, "PR_PostSemaphore failed\n");
+ exit(1);
+ }
+ }
+}
+
+static void Help(void)
+{
+ fprintf(stderr, "sema test program usage:\n");
+ fprintf(stderr, "\t-d debug mode (FALSE)\n");
+ fprintf(stderr, "\t-c <count> loop count (%d)\n", ITERATIONS);
+ fprintf(stderr, "\t-h this message\n");
+} /* Help */
+
+int main(int argc, char **argv)
+{
+ PRThread *thred;
+ PRIntn i;
+ PLOptStatus os;
+ PLOptState *opt = PL_CreateOptState(argc, argv, "dc:h");
+
+ 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 count */
+ iterations = atoi(opt->value);
+ break;
+ case 'h':
+ default:
+ Help();
+ return 2;
+ }
+ }
+ PL_DestroyOptState(opt);
+
+ if (PR_DeleteSemaphore(SEM_NAME1) == PR_SUCCESS) {
+ fprintf(stderr, "warning: removed semaphore %s left over "
+ "from previous run\n", SEM_NAME1);
+ }
+ if (PR_DeleteSemaphore(SEM_NAME2) == PR_SUCCESS) {
+ fprintf(stderr, "warning: removed semaphore %s left over "
+ "from previous run\n", SEM_NAME2);
+ }
+
+ sem1 = PR_OpenSemaphore(SEM_NAME1, PR_SEM_CREATE, SEM_MODE, 1);
+ if (NULL == sem1) {
+ fprintf(stderr, "PR_OpenSemaphore failed (%d, %d)\n",
+ PR_GetError(), PR_GetOSError());
+ exit(1);
+ }
+ sem2 = PR_OpenSemaphore(SEM_NAME2, PR_SEM_CREATE, SEM_MODE, 0);
+ if (NULL == sem2) {
+ fprintf(stderr, "PR_OpenSemaphore failed\n");
+ exit(1);
+ }
+ thred = PR_CreateThread(PR_USER_THREAD, ThreadFunc, NULL,
+ PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0);
+ if (NULL == thred) {
+ fprintf(stderr, "PR_CreateThread failed\n");
+ exit(1);
+ }
+
+ /*
+ * Thread 1 waits on semaphore 1 and posts to semaphore 2.
+ */
+ for (i = 0; i < iterations; i++) {
+ if (PR_WaitSemaphore(sem1) == PR_FAILURE) {
+ fprintf(stderr, "PR_WaitSemaphore failed\n");
+ exit(1);
+ }
+ if (counter == 2*i) {
+ if (debug_mode) printf("thread 1: counter = %d\n", counter);
+ } else {
+ fprintf(stderr, "thread 1: counter should be %d but is %d\n",
+ 2*i, counter);
+ exit(1);
+ }
+ counter++;
+ if (PR_PostSemaphore(sem2) == PR_FAILURE) {
+ fprintf(stderr, "PR_PostSemaphore failed\n");
+ exit(1);
+ }
+ }
+
+ if (PR_JoinThread(thred) == PR_FAILURE) {
+ fprintf(stderr, "PR_JoinThread failed\n");
+ exit(1);
+ }
+
+ if (PR_CloseSemaphore(sem1) == PR_FAILURE) {
+ fprintf(stderr, "PR_CloseSemaphore failed\n");
+ }
+ if (PR_CloseSemaphore(sem2) == PR_FAILURE) {
+ fprintf(stderr, "PR_CloseSemaphore failed\n");
+ }
+ if (PR_DeleteSemaphore(SEM_NAME1) == PR_FAILURE) {
+ fprintf(stderr, "PR_DeleteSemaphore failed\n");
+ }
+ if (PR_DeleteSemaphore(SEM_NAME2) == PR_FAILURE) {
+ fprintf(stderr, "PR_DeleteSemaphore failed\n");
+ }
+ printf("PASS\n");
+ return 0;
+}