diff options
Diffstat (limited to 'sysdeps/mach/libc-lock.h')
| -rw-r--r-- | sysdeps/mach/libc-lock.h | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/sysdeps/mach/libc-lock.h b/sysdeps/mach/libc-lock.h deleted file mode 100644 index cfd176750a..0000000000 --- a/sysdeps/mach/libc-lock.h +++ /dev/null @@ -1,90 +0,0 @@ -/* libc-internal interface for mutex locks. Mach cthreads version. - Copyright (C) 1996, 1997 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _LIBC_LOCK_H -#define _LIBC_LOCK_H 1 - -#ifdef _LIBC -#include <cthreads.h> -#define __libc_lock_t struct mutex -#else -typedef struct __libc_lock_opaque__ __libc_lock_t; -#endif - -/* Define a lock variable NAME with storage class CLASS. The lock must be - initialized with __libc_lock_init before it can be used (or define it - with __libc_lock_define_initialized, below). Use `extern' for CLASS to - declare a lock defined in another module. In public structure - definitions you must use a pointer to the lock structure (i.e., NAME - begins with a `*'), because its storage size will not be known outside - of libc. */ -#define __libc_lock_define(CLASS,NAME) \ - CLASS __libc_lock_t NAME; - -/* Define an initialized lock variable NAME with storage class CLASS. */ -#define __libc_lock_define_initialized(CLASS,NAME) \ - CLASS __libc_lock_t NAME = MUTEX_INITIALIZER; - -/* Initialize the named lock variable, leaving it in a consistent, unlocked - state. */ -#define __libc_lock_init(NAME) __mutex_init (&(NAME)) - -/* Finalize the named lock variable, which must be locked. It cannot be - used again until __libc_lock_init is called again on it. This must be - called on a lock variable before the containing storage is reused. */ -#define __libc_lock_fini(NAME) __mutex_unlock (&(NAME)) - -/* Lock the named lock variable. */ -#define __libc_lock_lock(NAME) __mutex_lock (&(NAME)) - -/* Lock the named lock variable. */ -#define __libc_lock_trylock(NAME) (!__mutex_trylock (&(NAME))) - -/* Unlock the named lock variable. */ -#define __libc_lock_unlock(NAME) __mutex_unlock (&(NAME)) - -/* Start a critical region with a cleanup function */ -#define __libc_cleanup_region_start(FCT, ARG) \ -{ \ - typeof (FCT) __save_FCT = FCT; \ - typeof (ARG) __save_ARG = ARG; \ - /* close brace is in __libc_cleanup_region_end below. */ - -/* End a critical region started with __libc_cleanup_region_start. */ -#define __libc_cleanup_region_end(DOIT) \ - if (DOIT) \ - (*__save_FCT)(__save_ARG); \ -} - - -#ifdef _LIBC -/* We need portable names for some functions. E.g., when they are - used as argument to __libc_cleanup_region_start. */ -#define __libc_mutex_unlock __mutex_unlock -#endif - -/* XXX until cthreads supports recursive locks */ -#define __libc_lock_define_initialized_recursive __libc_lock_define_initialized -#define __libc_lock_init_recursive __libc_lock_init -#define __libc_lock_fini_recursive __libc_lock_fini -#define __libc_lock_trylock_recursive __libc_lock_trylock -#define __libc_lock_unlock_recursive __libc_lock_unlock -#define __libc_lock_lock_recursive __libc_lock_lock - -#endif /* libc-lock.h */ |