/* 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/. */
/*
* * File : append . c
* * Description : Testing File writes where PR_APPEND was used on open
* *
* * append attempts to verify that a file opened with PR_APPEND
* * will always append to the end of file , regardless where the
* * current file pointer is positioned . To do this , PR_Seek ( ) is
* * called before each write with the position set to beginning of
* * file . Subsequent writes should always append .
* * The file is read back , summing the integer data written to the
* * file . If the expected result is equal , the test passes .
* *
* * See BugSplat : 4090
*/
#include "plgetopt.h"
#include "nspr.h"
#include <stdio.h>
#include <stdlib.h>
PRIntn debug =
0 ;
PRIntn verbose =
0 ;
PRBool failedAlready = PR_FALSE;
const PRInt32 addedBytes =
1000 ;
const PRInt32 buf =
1 ;
/* constant written to fd, addedBytes times */
PRInt32 inBuf;
/* read it back into here */
int main(int argc, char** argv) {
PRStatus rc;
PRInt32 rv;
PRFileDesc* fd;
PRIntn i;
PRInt32 sum =
0 ;
{
/* Get command line options */
PLOptStatus os;
PLOptState* opt = PL_CreateOptState(argc, argv,
"vd" );
while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) {
if (PL_OPT_BAD == os) {
continue ;
}
switch (opt->option) {
case 'd' :
/* debug */
debug =
1 ;
break ;
case 'v' :
/* verbose */
verbose =
1 ;
break ;
default :
break ;
}
}
PL_DestroyOptState(opt);
}
/* end block "Get command line options" */
/* ---------------------------------------------------------------------- */
fd = PR_Open(
"./tmp-nsprAppend" ,
(PR_APPEND | PR_CREATE_FILE | PR_TRUNCATE | PR_WRONLY),
0666 );
if (NULL == fd) {
if (debug) {
printf(
"PR_Open() failed for writing: %d\n" , PR_GetError());
}
failedAlready = PR_TRUE;
goto Finished;
}
for (i =
0 ; i < addedBytes; i++) {
rv = PR_Write(fd, &buf,
sizeof (buf));
if (
sizeof (buf) != rv) {
if (debug) {
printf(
"PR_Write() failed: %d\n" , PR_GetError());
}
failedAlready = PR_TRUE;
goto Finished;
}
rv = PR_Seek(fd,
0 , PR_SEEK_SET);
if (-
1 == rv) {
if (debug) {
printf(
"PR_Seek() failed: %d\n" , PR_GetError());
}
failedAlready = PR_TRUE;
goto Finished;
}
}
rc = PR_Close(fd);
if (PR_FAILURE == rc) {
if (debug) {
printf(
"PR_Close() failed after writing: %d\n" , PR_GetError());
}
failedAlready = PR_TRUE;
goto Finished;
}
/* ---------------------------------------------------------------------- */
fd = PR_Open(
"./tmp-nsprAppend" , PR_RDONLY,
0 );
if (NULL == fd) {
if (debug) {
printf(
"PR_Open() failed for reading: %d\n" , PR_GetError());
}
failedAlready = PR_TRUE;
goto Finished;
}
for (i =
0 ; i < addedBytes; i++) {
rv = PR_Read(fd, &inBuf,
sizeof (inBuf));
if (
sizeof (inBuf) != rv) {
if (debug) {
printf(
"PR_Write() failed: %d\n" , PR_GetError());
}
failedAlready = PR_TRUE;
goto Finished;
}
sum += inBuf;
}
rc = PR_Close(fd);
if (PR_FAILURE == rc) {
if (debug) {
printf(
"PR_Close() failed after reading: %d\n" , PR_GetError());
}
failedAlready = PR_TRUE;
goto Finished;
}
if (sum != addedBytes) {
if (debug) {
printf(
"Uh Oh! addedBytes: %d. Sum: %d\n" , addedBytes, sum);
}
failedAlready = PR_TRUE;
goto Finished;
}
/* ---------------------------------------------------------------------- */
Finished:
if (debug || verbose) {
printf(
"%s\n" , (failedAlready) ?
"FAILED" :
"PASSED" );
}
return ((failedAlready) ?
1 :
0 );
}
/* main() */
/* append.c */
Messung V0.5 in Prozent C=96 H=96 G=95
¤ Dauer der Verarbeitung: 0.3 Sekunden
¤
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