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-rw-r--r--nsprpub/pr/tests/semaping.c187
1 files changed, 187 insertions, 0 deletions
diff --git a/nsprpub/pr/tests/semaping.c b/nsprpub/pr/tests/semaping.c
new file mode 100644
index 0000000000..3b653d524e
--- /dev/null
+++ b/nsprpub/pr/tests/semaping.c
@@ -0,0 +1,187 @@
+/* -*- 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 EXE_NAME "semapong"
+#define SEM_MODE 0666
+#define SHM_MODE 0666
+#define ITERATIONS 1000
+
+static PRBool debug_mode = PR_FALSE;
+static PRIntn iterations = ITERATIONS;
+static PRSem *sem1, *sem2;
+
+static void Help(void)
+{
+ fprintf(stderr, "semaping 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)
+{
+ PRProcess *proc;
+ PRIntn i;
+ char *child_argv[32];
+ char **child_arg;
+ char iterations_buf[32];
+ PRSharedMemory *shm;
+ PRIntn *counter_addr;
+ PRInt32 exit_code;
+ 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_DeleteSharedMemory(SHM_NAME) == PR_SUCCESS) {
+ fprintf(stderr, "warning: removed shared memory %s left over "
+ "from previous run\n", SHM_NAME);
+ }
+ 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);
+ }
+
+ shm = PR_OpenSharedMemory(SHM_NAME, sizeof(*counter_addr), PR_SHM_CREATE, SHM_MODE);
+ if (NULL == shm) {
+ fprintf(stderr, "PR_OpenSharedMemory 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);
+ }
+ *counter_addr = 0;
+ 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 (%d, %d)\n",
+ PR_GetError(), PR_GetOSError());
+ exit(1);
+ }
+
+ child_arg = &child_argv[0];
+ *child_arg++ = EXE_NAME;
+ if (debug_mode != PR_FALSE) {
+ *child_arg++ = "-d";
+ }
+ if (iterations != ITERATIONS) {
+ *child_arg++ = "-c";
+ PR_snprintf(iterations_buf, sizeof(iterations_buf), "%d", iterations);
+ *child_arg++ = iterations_buf;
+ }
+ *child_arg = NULL;
+ proc = PR_CreateProcess(child_argv[0], child_argv, NULL, NULL);
+ if (NULL == proc) {
+ fprintf(stderr, "PR_CreateProcess failed\n");
+ exit(1);
+ }
+
+ /*
+ * Process 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_addr == 2*i) {
+ if (debug_mode) {
+ printf("process 1: counter = %d\n", *counter_addr);
+ }
+ } else {
+ fprintf(stderr, "process 1: counter should be %d but is %d\n",
+ 2*i, *counter_addr);
+ exit(1);
+ }
+ (*counter_addr)++;
+ if (PR_PostSemaphore(sem2) == 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");
+ }
+
+ if (PR_WaitProcess(proc, &exit_code) == PR_FAILURE) {
+ fprintf(stderr, "PR_WaitProcess failed\n");
+ exit(1);
+ }
+ if (exit_code != 0) {
+ fprintf(stderr, "process 2 failed with exit code %d\n", exit_code);
+ exit(1);
+ }
+
+ if (PR_DeleteSharedMemory(SHM_NAME) == PR_FAILURE) {
+ fprintf(stderr, "PR_DeleteSharedMemory 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;
+}