nptl/semaphoreP.h

   1 /* Copyright (C) 2002 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
   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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include "pthreadP.h"
  21
  22 /* Mount point of the shared memory filesystem.  */
  23 struct mountpoint_info
  24 {
  25   char *dir;
  26   size_t dirlen;
  27 };
  28
  29
  30 /* Variables used in multiple interfaces.  */
  31 extern struct mountpoint_info mountpoint attribute_hidden;
  32
  33 extern pthread_once_t __namedsem_once attribute_hidden;
  34
  35
  36 /* Initializer for mountpoint.  */
  37 extern void __where_is_shmfs (void) attribute_hidden;
  38
  39
  40 /* Prototypes of functions with multiple interfaces.  */
  41 extern int __new_sem_init (sem_t *sem, int pshared, unsigned int value);
  42 extern int __new_sem_destroy (sem_t *sem);
  43 extern int __new_sem_post (sem_t *sem);
  44 extern int __new_sem_wait (sem_t *sem);
  45 extern int __new_sem_trywait (sem_t *sem);
  46 extern int __new_sem_getvalue (sem_t *sem, int *sval);