nsprpub/pr/tests/op_excl.c

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  37
  38 /***********************************************************************
  39 **
  40 ** Name: op_excl.c
  41 **
  42 ** Description: Test Program to verify function of PR_EXCL open flag
  43 **
  44 ** Modification History:
  45 ** 27-Oct-1999 lth. Initial version
  46 ***********************************************************************/
  47
  48 #include <plgetopt.h>
  49 #include <nspr.h>
  50 #include <stdio.h>
  51 #include <stdlib.h>
  52
  53 /*
  54 ** Test harness infrastructure
  55 */
  56 PRLogModuleInfo *lm;
  57 PRLogModuleLevel msgLevel = PR_LOG_NONE;
  58 PRIntn  debug = 0;
  59 PRUint32  failed_already = 0;
  60 /* end Test harness infrastructure */
  61 /*
  62 ** Emit help text for this test
  63 */
  64 static void Help( void )
  65 {
  66     printf("op_excl: Help");
  67     printf("op_excl [-d]");
  68     printf("-d enables debug messages");
  69     exit(1);
  70 } /* end Help() */
  71
  72
  73
  74 PRIntn main(PRIntn argc, char *argv[])
  75 {
  76     PRFileDesc  *fd;
  77     PRStatus    rv;
  78     PRInt32     written;
  79     char        outBuf[] = "op_excl.c test file";
  80 #define OUT_SIZE sizeof(outBuf)
  81 #define NEW_FILENAME "xxxExclNewFile"
  82
  83     {
  84         /*
  85         ** Get command line options
  86         */
  87         PLOptStatus os;
  88         PLOptState *opt = PL_CreateOptState(argc, argv, "hd");
  89
  90             while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
  91         {
  92                     if (PL_OPT_BAD == os) continue;
  93             switch (opt->option)
  94             {
  95             case 'd':  /* debug */
  96                 debug = 1;
  97                             msgLevel = PR_LOG_ERROR;
  98                 break;
  99             case 'h':  /* help message */
 100                             Help();
 101                 break;
 102              default:
 103                 break;
 104             }
 105         }
 106             PL_DestroyOptState(opt);
 107     }
 108
 109     lm = PR_NewLogModule("Test");       /* Initialize logging */
 110
 111     /*
 112     ** First, open a file, PR_EXCL, we believe not to exist
 113     */
 114     fd = PR_Open( NEW_FILENAME, PR_CREATE_FILE | PR_EXCL | PR_WRONLY, 0666 );
 115     if ( NULL == fd )  {
 116         if (debug) fprintf( stderr, "Open exclusive. Expected success, got failure\n");
 117         failed_already = 1;
 118         goto Finished;
 119     }
 120
 121     written = PR_Write( fd, outBuf, OUT_SIZE );
 122     if ( OUT_SIZE != written )  {
 123         if (debug) fprintf( stderr, "Write after open exclusive failed\n");
 124         failed_already = 1;
 125         goto Finished;
 126     }
 127
 128     rv = PR_Close(fd);
 129     if ( PR_FAILURE == rv )  {
 130         if (debug) fprintf( stderr, "Close after open exclusive failed\n");
 131         failed_already = 1;
 132         goto Finished;
 133     }
 134
 135     /*
 136     ** Second, open the same file, PR_EXCL, expect it to fail
 137     */
 138     fd = PR_Open( NEW_FILENAME, PR_CREATE_FILE | PR_EXCL | PR_WRONLY, 0666 );
 139     if ( NULL != fd )  {
 140         if (debug) fprintf( stderr, "Open exclusive. Expected failure, got success\n");
 141         failed_already = 1;
 142         PR_Close(fd);
 143     }
 144
 145     rv = PR_Delete( NEW_FILENAME );
 146     if ( PR_FAILURE == rv ) {
 147         if (debug) fprintf( stderr, "PR_Delete() failed\n");
 148         failed_already = 1;
 149     }
 150
 151 Finished:
 152     if (debug) printf("%s\n", (failed_already)? "FAIL" : "PASS");
 153     return( (failed_already == PR_TRUE )? 1 : 0 );
 154 }  /* main() */
 155 /* end op_excl.c */
 156