malloc/tst-mallopt.c

   1 /* Copyright (C) 2014-2023 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <malloc.h>
  19 #include <stdio.h>
  20 #include <string.h>
  21
  22 static int errors = 0;
  23
  24 static void
  25 merror (const char *msg)
  26 {
  27   ++errors;
  28   printf ("Error: %s\n", msg);
  29 }
  30
  31 static int
  32 do_test (void)
  33 {
  34   int ret;
  35
  36   ret = mallopt(M_CHECK_ACTION, 1);
  37
  38   if (ret != 1)
  39     merror ("mallopt (M_CHECK_ACTION, 1) failed.");
  40
  41   ret = mallopt(M_MMAP_MAX, 64*1024);
  42
  43   if (ret != 1)
  44     merror ("mallopt (M_MMAP_MAX, 64*1024) failed.");
  45
  46   ret = mallopt(M_MMAP_THRESHOLD, 64*1024);
  47
  48   if (ret != 1)
  49     merror ("mallopt (M_MMAP_THRESHOLD, 64*1024) failed.");
  50
  51   ret = mallopt(M_MXFAST, 0);
  52
  53   if (ret != 1)
  54     merror ("mallopt (M_MXFAST, 0) failed.");
  55
  56   ret = mallopt(M_PERTURB, 0xa5);
  57
  58   if (ret != 1)
  59     merror ("mallopt (M_PERTURB, 0xa5) failed.");
  60
  61   ret = mallopt(M_TOP_PAD, 64*1024);
  62
  63   if (ret != 1)
  64     merror ("mallopt (M_TOP_PAD, 64*1024) failed.");
  65
  66   ret = mallopt(M_TRIM_THRESHOLD, -1);
  67
  68   if (ret != 1)
  69     merror ("mallopt (M_TRIM_THRESHOLD, -1) failed.");
  70
  71   return errors != 0;
  72 }
  73
  74 #define TEST_FUNCTION do_test ()
  75 #include "../test-skeleton.c"