diff options
Diffstat (limited to 'libpthread/nptl/semaphoreP.h')
| -rw-r--r-- | libpthread/nptl/semaphoreP.h | 67 | 
1 files changed, 67 insertions, 0 deletions
| diff --git a/libpthread/nptl/semaphoreP.h b/libpthread/nptl/semaphoreP.h new file mode 100644 index 000000000..d14ea92c7 --- /dev/null +++ b/libpthread/nptl/semaphoreP.h @@ -0,0 +1,67 @@ +/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. +   This file is part of the GNU C Library. +   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + +   The GNU C Library is free software; you can redistribute it and/or +   modify it under the terms of the GNU Lesser General Public +   License as published by the Free Software Foundation; either +   version 2.1 of the License, or (at your option) any later version. + +   The GNU C Library is distributed in the hope that it will be useful, +   but WITHOUT ANY WARRANTY; without even the implied warranty of +   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU +   Lesser General Public License for more details. + +   You should have received a copy of the GNU Lesser General Public +   License along with the GNU C Library; if not, write to the Free +   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA +   02111-1307 USA.  */ + +#include <semaphore.h> +#include "pthreadP.h" + + +/* Mount point of the shared memory filesystem.  */ +struct mountpoint_info +{ +  char *dir; +  size_t dirlen; +}; + +/* Keeping track of currently used mappings.  */ +struct inuse_sem +{ +  dev_t dev; +  ino_t ino; +  int refcnt; +  sem_t *sem; +  char name[0]; +}; + + +/* Variables used in multiple interfaces.  */ +extern struct mountpoint_info mountpoint attribute_hidden; + +extern pthread_once_t __namedsem_once attribute_hidden; + +/* The search tree for existing mappings.  */ +extern void *__sem_mappings attribute_hidden; + +/* Lock to protect the search tree.  */ +extern lll_lock_t __sem_mappings_lock; + + +/* Initializer for mountpoint.  */ +extern void __where_is_shmfs (void) attribute_hidden; + +/* Comparison function for search in tree with existing mappings.  */ +extern int __sem_search (const void *a, const void *b) attribute_hidden; + + +/* Prototypes of functions with multiple interfaces.  */ +extern int __new_sem_init (sem_t *sem, int pshared, unsigned int value); +extern int __new_sem_destroy (sem_t *sem); +extern int __new_sem_post (sem_t *sem); +extern int __new_sem_wait (sem_t *sem); +extern int __new_sem_trywait (sem_t *sem); +extern int __new_sem_getvalue (sem_t *sem, int *sval); | 
