mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-28 05:21:13 +00:00
104 lines
2.4 KiB
C
104 lines
2.4 KiB
C
/* Test program for mtrace.
|
|
Copyright (C) 2000 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
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 <mcheck.h>
|
|
#include <paths.h>
|
|
#include <search.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
|
|
static void print (const void *node, VISIT value, int level);
|
|
|
|
/* Used for several purposes. */
|
|
static FILE *fp;
|
|
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
void *root = NULL;
|
|
size_t linelen = 0;
|
|
char *line = NULL;
|
|
|
|
/* Enable memory usage tracing. */
|
|
mtrace ();
|
|
|
|
/* Perform some operations which definitely will allocate some
|
|
memory. */
|
|
fp = fopen (__FILE__, "r");
|
|
if (fp == NULL)
|
|
/* Shouldn't happen since this program is executed in the source
|
|
directory. */
|
|
abort ();
|
|
|
|
while (!feof (fp))
|
|
{
|
|
char **p;
|
|
char *copy;
|
|
ssize_t n = getline (&line, &linelen, fp);
|
|
|
|
if (n < 0)
|
|
break;
|
|
|
|
if (n == 0)
|
|
continue;
|
|
|
|
copy = strdup (line);
|
|
if (copy == NULL)
|
|
abort ();
|
|
|
|
p = (char **) tsearch (copy, &root,
|
|
(int (*) (const void *, const void *)) strcmp);
|
|
if (*p != copy)
|
|
/* This line wasn't added. */
|
|
free (copy);
|
|
}
|
|
|
|
fclose (fp);
|
|
|
|
fp = fopen (_PATH_DEVNULL, "w");
|
|
if (fp != NULL)
|
|
{
|
|
/* Write something through stdout. */
|
|
twalk (root, print);
|
|
|
|
fclose (fp);
|
|
}
|
|
|
|
/* Free everything. */
|
|
tdestroy (root, free);
|
|
|
|
/* Also the line buffer. */
|
|
free (line);
|
|
|
|
/* That's it. */
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void
|
|
print (const void *node, VISIT value, int level)
|
|
{
|
|
static int cnt;
|
|
if (value == postorder || value == leaf)
|
|
fprintf (fp, "%3d: %s", ++cnt, *(const char **) node);
|
|
}
|