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lightning-sunbird  0.9+nobinonly
semaerr.c
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is the Netscape Portable Runtime (NSPR).
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1999-2000
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either the GNU General Public License Version 2 or later (the "GPL"), or
00026  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
00028  * of those above. If you wish to allow use of your version of this file only
00029  * under the terms of either the GPL or the LGPL, and not to allow others to
00030  * use your version of this file under the terms of the MPL, indicate your
00031  * decision by deleting the provisions above and replace them with the notice
00032  * and other provisions required by the GPL or the LGPL. If you do not delete
00033  * the provisions above, a recipient may use your version of this file under
00034  * the terms of any one of the MPL, the GPL or the LGPL.
00035  *
00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #include "nspr.h"
00039 #include "plgetopt.h"
00040 
00041 #include <stdio.h>
00042 
00043 #define NO_SUCH_SEM_NAME "/tmp/nosuchsem.sem"
00044 #define SEM_NAME1 "/tmp/foo.sem"
00045 #define SEM_MODE  0666
00046 
00047 static PRBool debug_mode = PR_FALSE;
00048 
00049 static void Help(void)
00050 {
00051     fprintf(stderr, "semaerr test program usage:\n");
00052     fprintf(stderr, "\t-d           debug mode         (FALSE)\n");
00053     fprintf(stderr, "\t-h           this message\n");
00054 }  /* Help */
00055 
00056 int main(int argc, char **argv)
00057 {
00058     PLOptStatus os;
00059     PLOptState *opt = PL_CreateOptState(argc, argv, "dh");
00060     PRSem *sem;
00061     char *child_argv[32];
00062     char **child_arg;
00063     PRProcess *proc;
00064     PRInt32 exit_code;
00065 
00066     while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) {
00067         if (PL_OPT_BAD == os) continue;
00068         switch (opt->option) {
00069             case 'd':  /* debug mode */
00070                 debug_mode = PR_TRUE;
00071                 break;
00072             case 'h':
00073             default:
00074                 Help();
00075                 return 2;
00076         }
00077     }
00078     PL_DestroyOptState(opt);
00079 
00080     /*
00081      * Open a nonexistent semaphore without the PR_SEM_CREATE
00082      * flag should fail with PR_FILE_NOT_FOUND_ERROR.
00083      */
00084     (void) PR_DeleteSemaphore(NO_SUCH_SEM_NAME);
00085     sem = PR_OpenSemaphore(NO_SUCH_SEM_NAME, 0, 0, 0);
00086     if (NULL != sem) {
00087         fprintf(stderr, "Opening nonexistent semaphore %s "
00088                 "without the PR_SEM_CREATE flag should fail "
00089                 "but succeeded\n", NO_SUCH_SEM_NAME);
00090         exit(1);
00091     }
00092     if (PR_GetError() != PR_FILE_NOT_FOUND_ERROR) {
00093         fprintf(stderr, "Expected error is %d but got (%d, %d)\n",
00094                 PR_FILE_NOT_FOUND_ERROR, PR_GetError(), PR_GetOSError());
00095         exit(1);
00096     }
00097 
00098     /*
00099      * Create a semaphore and let the another process
00100      * try PR_SEM_CREATE and PR_SEM_CREATE|PR_SEM_EXCL.
00101      */
00102     if (PR_DeleteSemaphore(SEM_NAME1) == PR_SUCCESS) {
00103         fprintf(stderr, "warning: deleted semaphore %s from previous "
00104                 "run of the test\n", SEM_NAME1);
00105     }
00106     sem = PR_OpenSemaphore(SEM_NAME1, PR_SEM_CREATE, SEM_MODE, 0);
00107     if (sem == NULL) {
00108         fprintf(stderr, "PR_OpenSemaphore failed (%d, %d)\n",
00109                 PR_GetError(), PR_GetOSError());
00110         exit(1);
00111     }
00112     child_arg = child_argv;
00113     *child_arg++ = "semaerr1";
00114     if (debug_mode) {
00115         *child_arg++ = "-d";
00116     }
00117     *child_arg = NULL;
00118     proc = PR_CreateProcess(child_argv[0], child_argv, NULL, NULL);
00119     if (proc == NULL) {
00120         fprintf(stderr, "PR_CreateProcess failed\n");
00121         exit(1);
00122     }
00123     if (PR_WaitProcess(proc, &exit_code) == PR_FAILURE) {
00124         fprintf(stderr, "PR_WaitProcess failed\n");
00125         exit(1);
00126     }
00127     if (exit_code != 0) {
00128         fprintf(stderr, "process semaerr1 failed\n");
00129         exit(1);
00130     }
00131     if (PR_CloseSemaphore(sem) == PR_FAILURE) {
00132         fprintf(stderr, "PR_CloseSemaphore failed\n");
00133         exit(1);
00134     }
00135     if (PR_DeleteSemaphore(SEM_NAME1) == PR_FAILURE) {
00136         fprintf(stderr, "PR_DeleteSemaphore failed\n");
00137         exit(1);
00138     }
00139 
00140     printf("PASS\n");
00141     return 0;
00142 }