sysdeps/htl/pt-getspecific.c

   1 /* pthread_getspecific.  Hurd version.
   2    Copyright (C) 2002-2018 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 #include <pthread.h>
  20
  21 #include <pt-internal.h>
  22
  23 void *
  24 __pthread_getspecific (pthread_key_t key)
  25 {
  26   struct __pthread *self;
  27
  28   if (key < 0 || key >= __pthread_key_count
  29       || __pthread_key_destructors[key] == PTHREAD_KEY_INVALID)
  30     return NULL;
  31
  32   self = _pthread_self ();
  33   if (key >= self->thread_specifics_size)
  34     return 0;
  35
  36   return self->thread_specifics[key];
  37 }
  38 strong_alias (__pthread_getspecific, pthread_getspecific);