sysdeps/mach/hurd/cthreads.c

   1 /* Copyright (C) 1997 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 #include <bits/libc-lock.h>
  20 #include <errno.h>
  21 #include <stdlib.h>
  22
  23 /* Placeholder for key creation routine from Hurd cthreads library.  */
  24 int
  25 weak_function
  26 cthread_keycreate (key)
  27      cthread_key_t *key;
  28 {
  29   __set_errno (ENOSYS);
  30  *key = -1;
  31   return -1;
  32 }
  33
  34 /* Placeholder for key retrieval routine from Hurd cthreads library.  */
  35 int
  36 weak_function
  37 cthread_getspecific (key, pval)
  38      cthread_key_t key;
  39      void **pval;
  40 {
  41   *pval = NULL;
  42   __set_errno (ENOSYS);
  43   return -1;
  44 }
  45
  46 /* Placeholder for key setting routine from Hurd cthreads library.  */
  47 int
  48 weak_function
  49 cthread_setspecific (key, val)
  50      cthread_key_t key;
  51      void *val;
  52 {
  53   __set_errno (ENOSYS);
  54   return -1;
  55 }
  56
  57 /* Call cthread_getspecific which gets a pointer to the return value instead
  58    of just returning it.  */
  59 void *
  60 __libc_getspecific (key)
  61      cthread_key_t key;
  62 {
  63   void *val;
  64   cthread_getspecific (key, &val);
  65   return val;
  66 }