dlfcn/dlclose.c

   1 /* Close a handle opened by `dlopen'.
   2    Copyright (C) 1995, 1996, 1997, 1998, 1999, 2004
   3    Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #include <dlfcn.h>
  22
  23 #if !defined SHARED && defined IS_IN_libdl
  24
  25 int
  26 dlclose (void *handle)
  27 {
  28   return __dlclose (handle);
  29 }
  30
  31 #else
  32
  33 static void
  34 dlclose_doit (void *handle)
  35 {
  36   _dl_close (handle);
  37 }
  38
  39 int
  40 __dlclose (void *handle)
  41 {
  42 # ifdef SHARED
  43   if (__builtin_expect (_dlfcn_hook != NULL, 0))
  44     return _dlfcn_hook->dlclose (handle);
  45 # endif
  46
  47   return _dlerror_run (dlclose_doit, handle) ? -1 : 0;
  48 }
  49 # ifdef SHARED
  50 strong_alias (__dlclose, dlclose)
  51 # endif
  52 #endif