libio/include/empty.h

   1 /* Thread package specific definitions of stream lock type.
   2    Copyright (C) 1996, 1997 Free Software Foundation, Inc.
   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 Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    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    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #ifndef _LIBIO_LOCK_H
  21 #define _LIBIO_LOCK_H   1
  22
  23 typedef void *_IO_lock_t;
  24
  25 /* We need recursive (counting) mutexes.  */
  26 #define _IO_lock_initializer NULL
  27
  28
  29 #define _IO_cleanup_region_start(_fct, _fp)
  30 #define _IO_cleanup_region_end(_doit)
  31 #define _IO_lock_init(_name)
  32 #define _IO_lock_fini(_name)
  33 #define _IO_lock_lock(_name)
  34 #define _IO_lock_unlock(_name)
  35
  36 #endif /* libio-lock.h */
  37 /* this will be used later*/