sysdeps/mach/hurd/libc-tsd.h

   1 /* libc-internal interface for thread-specific data.  Hurd version.
   2    Copyright (C) 1998-2017 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 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 #ifndef _LIBC_TSD_H
  20 #define _LIBC_TSD_H 1
  21
  22 #include <hurd/threadvar.h>
  23
  24 #define __libc_tsd_define(CLASS, TYPE, KEY) /* nothing, always have threadvars */
  25
  26 #define __libc_tsd_address(TYPE, KEY) \
  27   ((TYPE *) __hurd_threadvar_location (_HURD_THREADVAR_##KEY))
  28
  29 #define __libc_tsd_get(TYPE, KEY) \
  30   (*__libc_tsd_address (TYPE, KEY))
  31 #define __libc_tsd_set(TYPE, KEY, VALUE) \
  32   (*__libc_tsd_address (TYPE, KEY) = (VALUE))
  33
  34 #endif  /* libc-tsd.h */