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-rw-r--r--nsprpub/pr/tests/semapong.c130
1 files changed, 130 insertions, 0 deletions
diff --git a/nsprpub/pr/tests/semapong.c b/nsprpub/pr/tests/semapong.c
new file mode 100644
index 0000000000..fd24824e31
--- /dev/null
+++ b/nsprpub/pr/tests/semapong.c
@@ -0,0 +1,130 @@
+/* -*- 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>
+
+#ifdef DEBUG
+#define SEM_D "D"
+#else
+#define SEM_D
+#endif
+#ifdef IS_64
+#define SEM_64 "64"
+#else
+#define SEM_64
+#endif
+
+#define SHM_NAME "/tmp/counter" SEM_D SEM_64
+#define SEM_NAME1 "/tmp/foo.sem" SEM_D SEM_64
+#define SEM_NAME2 "/tmp/bar.sem" SEM_D SEM_64
+#define ITERATIONS 1000
+
+static PRBool debug_mode = PR_FALSE;
+static PRIntn iterations = ITERATIONS;
+static PRSem *sem1, *sem2;
+
+static void Help(void)
+{
+ fprintf(stderr, "semapong 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)
+{
+ PRIntn i;
+ PRSharedMemory *shm;
+ PRIntn *counter_addr;
+ 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);
+
+ shm = PR_OpenSharedMemory(SHM_NAME, sizeof(*counter_addr), 0, 0666);
+ if (NULL == shm) {
+ fprintf(stderr, "PR_OpenSharedMemory failed (%d, %d)\n",
+ PR_GetError(), PR_GetOSError());
+ exit(1);
+ }
+ sem1 = PR_OpenSemaphore(SEM_NAME1, 0, 0, 0);
+ if (NULL == sem1) {
+ fprintf(stderr, "PR_OpenSemaphore failed (%d, %d)\n",
+ PR_GetError(), PR_GetOSError());
+ exit(1);
+ }
+ sem2 = PR_OpenSemaphore(SEM_NAME2, 0, 0, 0);
+ if (NULL == sem2) {
+ fprintf(stderr, "PR_OpenSemaphore failed (%d, %d)\n",
+ PR_GetError(), PR_GetOSError());
+ exit(1);
+ }
+
+ counter_addr = PR_AttachSharedMemory(shm, 0);
+ if (NULL == counter_addr) {
+ fprintf(stderr, "PR_AttachSharedMemory failed\n");
+ exit(1);
+ }
+
+ /*
+ * Process 2 waits on semaphore 2 and posts to semaphore 1.
+ */
+ for (i = 0; i < iterations; i++) {
+ if (PR_WaitSemaphore(sem2) == PR_FAILURE) {
+ fprintf(stderr, "PR_WaitSemaphore failed\n");
+ exit(1);
+ }
+ if (*counter_addr == 2*i+1) {
+ if (debug_mode) {
+ printf("process 2: counter = %d\n", *counter_addr);
+ }
+ } else {
+ fprintf(stderr, "process 2: counter should be %d but is %d\n",
+ 2*i+1, *counter_addr);
+ exit(1);
+ }
+ (*counter_addr)++;
+ if (PR_PostSemaphore(sem1) == PR_FAILURE) {
+ fprintf(stderr, "PR_PostSemaphore failed\n");
+ exit(1);
+ }
+ }
+ if (PR_DetachSharedMemory(shm, counter_addr) == PR_FAILURE) {
+ fprintf(stderr, "PR_DetachSharedMemory failed\n");
+ exit(1);
+ }
+ if (PR_CloseSharedMemory(shm) == PR_FAILURE) {
+ fprintf(stderr, "PR_CloseSharedMemory 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");
+ }
+ printf("PASS\n");
+ return 0;
+}