misc/hsearch.c

   1 /* Copyright (C) 1993-2015 Free Software Foundation, Inc.
   2    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <search.h>
  20
  21 /* The non-reentrant version use a global space for storing the table.  */
  22 static struct hsearch_data htab;
  23
  24
  25 /* Define the non-reentrant function using the reentrant counterparts.  */
  26 ENTRY *
  27 hsearch (item, action)
  28      ENTRY item;
  29      ACTION action;
  30 {
  31   ENTRY *result;
  32
  33   (void) hsearch_r (item, action, &result, &htab);
  34
  35   return result;
  36 }
  37
  38
  39 int
  40 hcreate (nel)
  41      size_t nel;
  42 {
  43   return hcreate_r (nel, &htab);
  44 }
  45
  46
  47 void
  48 __hdestroy (void)
  49 {
  50   hdestroy_r (&htab);
  51 }
  52 weak_alias (__hdestroy, hdestroy)
  53
  54 /* Make sure the table is freed if we want to free everything before
  55    exiting.  */
  56 text_set_element (__libc_subfreeres, __hdestroy);