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nsprpub/pr/tests/semaping.c@4ab42b5ab56c (annotated)

nsprpub/pr/tests/semaping.c

Wed, 31 Dec 2014 07:53:36 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 07:53:36 +0100
branch
TOR_BUG_3246
changeset 5
4ab42b5ab56c
permissions
-rw-r--r--

Correct small whitespace inconsistency, lost while renaming variables.

michael@0 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #include "nspr.h"
michael@0 7 #include "plgetopt.h"
michael@0 8
michael@0 9 #include <stdio.h>
michael@0 10
michael@0 11 #ifdef SYMBIAN
michael@0 12 #define SHM_NAME "c:\\data\\counter"
michael@0 13 #define SEM_NAME1 "c:\\data\\foo.sem"
michael@0 14 #define SEM_NAME2 "c:\\data\\bar.sem"
michael@0 15 #define EXE_NAME "nspr_tests_semapong.exe"
michael@0 16 #else
michael@0 17 #define SHM_NAME "/tmp/counter"
michael@0 18 #define SEM_NAME1 "/tmp/foo.sem"
michael@0 19 #define SEM_NAME2 "/tmp/bar.sem"
michael@0 20 #define EXE_NAME "semapong"
michael@0 21 #endif
michael@0 22 #define SEM_MODE 0666
michael@0 23 #define SHM_MODE 0666
michael@0 24 #define ITERATIONS 1000
michael@0 25
michael@0 26 static PRBool debug_mode = PR_FALSE;
michael@0 27 static PRIntn iterations = ITERATIONS;
michael@0 28 static PRSem *sem1, *sem2;
michael@0 29
michael@0 30 static void Help(void)
michael@0 31 {
michael@0 32 fprintf(stderr, "semaping test program usage:\n");
michael@0 33 fprintf(stderr, "\t-d debug mode (FALSE)\n");
michael@0 34 fprintf(stderr, "\t-c <count> loop count (%d)\n", ITERATIONS);
michael@0 35 fprintf(stderr, "\t-h this message\n");
michael@0 36 } /* Help */
michael@0 37
michael@0 38 int main(int argc, char **argv)
michael@0 39 {
michael@0 40 PRProcess *proc;
michael@0 41 PRIntn i;
michael@0 42 char *child_argv[32];
michael@0 43 char **child_arg;
michael@0 44 char iterations_buf[32];
michael@0 45 PRSharedMemory *shm;
michael@0 46 PRIntn *counter_addr;
michael@0 47 PRInt32 exit_code;
michael@0 48 PLOptStatus os;
michael@0 49 PLOptState *opt = PL_CreateOptState(argc, argv, "dc:h");
michael@0 50
michael@0 51 while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) {
michael@0 52 if (PL_OPT_BAD == os) continue;
michael@0 53 switch (opt->option) {
michael@0 54 case 'd': /* debug mode */
michael@0 55 debug_mode = PR_TRUE;
michael@0 56 break;
michael@0 57 case 'c': /* loop count */
michael@0 58 iterations = atoi(opt->value);
michael@0 59 break;
michael@0 60 case 'h':
michael@0 61 default:
michael@0 62 Help();
michael@0 63 return 2;
michael@0 64 }
michael@0 65 }
michael@0 66 PL_DestroyOptState(opt);
michael@0 67
michael@0 68 if (PR_DeleteSharedMemory(SHM_NAME) == PR_SUCCESS) {
michael@0 69 fprintf(stderr, "warning: removed shared memory %s left over "
michael@0 70 "from previous run\n", SHM_NAME);
michael@0 71 }
michael@0 72 if (PR_DeleteSemaphore(SEM_NAME1) == PR_SUCCESS) {
michael@0 73 fprintf(stderr, "warning: removed semaphore %s left over "
michael@0 74 "from previous run\n", SEM_NAME1);
michael@0 75 }
michael@0 76 if (PR_DeleteSemaphore(SEM_NAME2) == PR_SUCCESS) {
michael@0 77 fprintf(stderr, "warning: removed semaphore %s left over "
michael@0 78 "from previous run\n", SEM_NAME2);
michael@0 79 }
michael@0 80
michael@0 81 shm = PR_OpenSharedMemory(SHM_NAME, sizeof(*counter_addr), PR_SHM_CREATE, SHM_MODE);
michael@0 82 if (NULL == shm) {
michael@0 83 fprintf(stderr, "PR_OpenSharedMemory failed (%d, %d)\n",
michael@0 84 PR_GetError(), PR_GetOSError());
michael@0 85 exit(1);
michael@0 86 }
michael@0 87 counter_addr = PR_AttachSharedMemory(shm, 0);
michael@0 88 if (NULL == counter_addr) {
michael@0 89 fprintf(stderr, "PR_AttachSharedMemory failed\n");
michael@0 90 exit(1);
michael@0 91 }
michael@0 92 *counter_addr = 0;
michael@0 93 sem1 = PR_OpenSemaphore(SEM_NAME1, PR_SEM_CREATE, SEM_MODE, 1);
michael@0 94 if (NULL == sem1) {
michael@0 95 fprintf(stderr, "PR_OpenSemaphore failed (%d, %d)\n",
michael@0 96 PR_GetError(), PR_GetOSError());
michael@0 97 exit(1);
michael@0 98 }
michael@0 99 sem2 = PR_OpenSemaphore(SEM_NAME2, PR_SEM_CREATE, SEM_MODE, 0);
michael@0 100 if (NULL == sem2) {
michael@0 101 fprintf(stderr, "PR_OpenSemaphore failed (%d, %d)\n",
michael@0 102 PR_GetError(), PR_GetOSError());
michael@0 103 exit(1);
michael@0 104 }
michael@0 105
michael@0 106 child_arg = &child_argv[0];
michael@0 107 *child_arg++ = EXE_NAME;
michael@0 108 if (debug_mode != PR_FALSE) {
michael@0 109 *child_arg++ = "-d";
michael@0 110 }
michael@0 111 if (iterations != ITERATIONS) {
michael@0 112 *child_arg++ = "-c";
michael@0 113 PR_snprintf(iterations_buf, sizeof(iterations_buf), "%d", iterations);
michael@0 114 *child_arg++ = iterations_buf;
michael@0 115 }
michael@0 116 *child_arg = NULL;
michael@0 117 proc = PR_CreateProcess(child_argv[0], child_argv, NULL, NULL);
michael@0 118 if (NULL == proc) {
michael@0 119 fprintf(stderr, "PR_CreateProcess failed\n");
michael@0 120 exit(1);
michael@0 121 }
michael@0 122
michael@0 123 /*
michael@0 124 * Process 1 waits on semaphore 1 and posts to semaphore 2.
michael@0 125 */
michael@0 126 for (i = 0; i < iterations; i++) {
michael@0 127 if (PR_WaitSemaphore(sem1) == PR_FAILURE) {
michael@0 128 fprintf(stderr, "PR_WaitSemaphore failed\n");
michael@0 129 exit(1);
michael@0 130 }
michael@0 131 if (*counter_addr == 2*i) {
michael@0 132 if (debug_mode) printf("process 1: counter = %d\n", *counter_addr);
michael@0 133 } else {
michael@0 134 fprintf(stderr, "process 1: counter should be %d but is %d\n",
michael@0 135 2*i, *counter_addr);
michael@0 136 exit(1);
michael@0 137 }
michael@0 138 (*counter_addr)++;
michael@0 139 if (PR_PostSemaphore(sem2) == PR_FAILURE) {
michael@0 140 fprintf(stderr, "PR_PostSemaphore failed\n");
michael@0 141 exit(1);
michael@0 142 }
michael@0 143 }
michael@0 144 if (PR_DetachSharedMemory(shm, counter_addr) == PR_FAILURE) {
michael@0 145 fprintf(stderr, "PR_DetachSharedMemory failed\n");
michael@0 146 exit(1);
michael@0 147 }
michael@0 148 if (PR_CloseSharedMemory(shm) == PR_FAILURE) {
michael@0 149 fprintf(stderr, "PR_CloseSharedMemory failed\n");
michael@0 150 exit(1);
michael@0 151 }
michael@0 152 if (PR_CloseSemaphore(sem1) == PR_FAILURE) {
michael@0 153 fprintf(stderr, "PR_CloseSemaphore failed\n");
michael@0 154 }
michael@0 155 if (PR_CloseSemaphore(sem2) == PR_FAILURE) {
michael@0 156 fprintf(stderr, "PR_CloseSemaphore failed\n");
michael@0 157 }
michael@0 158
michael@0 159 if (PR_WaitProcess(proc, &exit_code) == PR_FAILURE) {
michael@0 160 fprintf(stderr, "PR_WaitProcess failed\n");
michael@0 161 exit(1);
michael@0 162 }
michael@0 163 if (exit_code != 0) {
michael@0 164 fprintf(stderr, "process 2 failed with exit code %d\n", exit_code);
michael@0 165 exit(1);
michael@0 166 }
michael@0 167
michael@0 168 if (PR_DeleteSharedMemory(SHM_NAME) == PR_FAILURE) {
michael@0 169 fprintf(stderr, "PR_DeleteSharedMemory failed\n");
michael@0 170 }
michael@0 171 if (PR_DeleteSemaphore(SEM_NAME1) == PR_FAILURE) {
michael@0 172 fprintf(stderr, "PR_DeleteSemaphore failed\n");
michael@0 173 }
michael@0 174 if (PR_DeleteSemaphore(SEM_NAME2) == PR_FAILURE) {
michael@0 175 fprintf(stderr, "PR_DeleteSemaphore failed\n");
michael@0 176 }
michael@0 177 printf("PASS\n");
michael@0 178 return 0;
michael@0 179 }

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