mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-17 10:30:20 +00:00
0a5503211c
* posix/tst-preadwrite.c: Allow parallel execution of tst-preadwrite and tst-preadwrite64.
133 lines
3.8 KiB
C
133 lines
3.8 KiB
C
/* Tests for ftruncate and truncate.
|
|
Copyright (C) 2000 Free Software Foundation, Inc.
|
|
Contributed by Ulrich Drepper <drepper@cygnus.com>, 2000.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <errno.h>
|
|
#include <error.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/stat.h>
|
|
|
|
|
|
/* Allow testing of the 64-bit versions as well. */
|
|
#ifndef TRUNCATE
|
|
# define TRUNCATE truncate
|
|
# define FTRUNCATE ftruncate
|
|
#endif
|
|
|
|
#define STRINGIFY(s) STRINGIFY2 (s)
|
|
#define STRINGIFY2(s) #s
|
|
|
|
/* Prototype for our test function. */
|
|
extern void do_prepare (int argc, char *argv[]);
|
|
extern int do_test (int argc, char *argv[]);
|
|
|
|
/* We have a preparation function. */
|
|
#define PREPARE do_prepare
|
|
|
|
/* We might need a bit longer timeout. */
|
|
#define TIMEOUT 20 /* sec */
|
|
|
|
/* This defines the `main' function and some more. */
|
|
#include <test-skeleton.c>
|
|
|
|
/* These are for the temporary file we generate. */
|
|
char *name;
|
|
int fd;
|
|
|
|
void
|
|
do_prepare (int argc, char *argv[])
|
|
{
|
|
char name_len;
|
|
|
|
#define FNAME FNAME2(TRUNCATE)
|
|
#define FNAME2(s) "/" STRINGIFY(s) "XXXXXX"
|
|
|
|
name_len = strlen (test_dir);
|
|
name = malloc (name_len + sizeof (FNAME));
|
|
mempcpy (mempcpy (name, test_dir, name_len), FNAME, sizeof (FNAME));
|
|
add_temp_file (name);
|
|
|
|
/* Open our test file. */
|
|
fd = mkstemp (name);
|
|
if (fd == -1)
|
|
error (EXIT_FAILURE, errno, "cannot open test file `%s'", name);
|
|
}
|
|
|
|
|
|
int
|
|
do_test (int argc, char *argv[])
|
|
{
|
|
struct stat st;
|
|
char buf[1000];
|
|
|
|
memset (buf, '\0', sizeof (buf));
|
|
|
|
if (write (fd, buf, sizeof (buf)) != sizeof (buf))
|
|
error (EXIT_FAILURE, errno, "during write");
|
|
|
|
if (fstat (fd, &st) < 0 || st.st_size != sizeof (buf))
|
|
error (EXIT_FAILURE, 0, "initial size wrong");
|
|
|
|
|
|
if (FTRUNCATE (fd, 800) < 0)
|
|
error (EXIT_FAILURE, errno, "size reduction with %s failed",
|
|
STRINGIFY (FTRUNCATE));
|
|
|
|
if (fstat (fd, &st) < 0 || st.st_size != 800)
|
|
error (EXIT_FAILURE, 0, "size after reduction with %s incorrect",
|
|
STRINGIFY (FTRUNCATE));
|
|
|
|
/* The following test covers more than POSIX. POSIX does not require
|
|
that ftruncate() can increase the file size. But we are testing
|
|
Unix systems. */
|
|
if (FTRUNCATE (fd, 1200) < 0)
|
|
error (EXIT_FAILURE, errno, "size increase with %s failed",
|
|
STRINGIFY (FTRUNCATE));
|
|
|
|
if (fstat (fd, &st) < 0 || st.st_size != 1200)
|
|
error (EXIT_FAILURE, 0, "size after increase with %s incorrect",
|
|
STRINGIFY (FTRUNCATE));
|
|
|
|
|
|
if (TRUNCATE (name, 800) < 0)
|
|
error (EXIT_FAILURE, errno, "size reduction with %s failed",
|
|
STRINGIFY (TRUNCATE));
|
|
|
|
if (fstat (fd, &st) < 0 || st.st_size != 800)
|
|
error (EXIT_FAILURE, 0, "size after reduction with %s incorrect",
|
|
STRINGIFY (TRUNCATE));
|
|
|
|
/* The following test covers more than POSIX. POSIX does not require
|
|
that truncate() can increase the file size. But we are testing
|
|
Unix systems. */
|
|
if (TRUNCATE (name, 1200) < 0)
|
|
error (EXIT_FAILURE, errno, "size increase with %s failed",
|
|
STRINGIFY (TRUNCATE));
|
|
|
|
if (fstat (fd, &st) < 0 || st.st_size != 1200)
|
|
error (EXIT_FAILURE, 0, "size after increase with %s incorrect",
|
|
STRINGIFY (TRUNCATE));
|
|
|
|
|
|
close (fd);
|
|
unlink (name);
|
|
|
|
return 0;
|
|
}
|