/* Test program for mtrace.

   Copyright (C) 2000-2018 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 Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#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;

static int

do_test (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);

}

#define TEST_FUNCTION do_test ()

#include "../test-skeleton.c"