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 #include <ldsodefs.h>
  23
  24 #if !defined SHARED && defined IS_IN_libdl
  25
  26 int
  27 dlclose (void *handle)
  28 {
  29   return __dlclose (handle);
  30 }
  31
  32 #else
  33
  34 static void
  35 dlclose_doit (void *handle)
  36 {
  37   GLRO(dl_close) (handle);
  38 }
  39
  40 int
  41 __dlclose (void *handle)
  42 {
  43 # ifdef SHARED
  44   if (__builtin_expect (_dlfcn_hook != NULL, 0))
  45     return _dlfcn_hook->dlclose (handle);
  46 # endif
  47
  48   return _dlerror_run (dlclose_doit, handle) ? -1 : 0;
  49 }
  50 # ifdef SHARED
  51 strong_alias (__dlclose, dlclose)
  52 # endif
  53 #endif