From 0a31d341200527297e9aded4c1d0ddf51c95c30d Mon Sep 17 00:00:00 2001 From: John Birrell Date: Mon, 9 Mar 1998 05:05:32 +0000 Subject: [PATCH] Add a private (to libc, libc_r and libpthread) header file containing prototypes for the spinlock functions that will be used for thread locks. libc will have stubs declared with weak symbols. libpthread and libc_r will have functions that really do something. --- lib/libc/include/spinlock.h | 52 +++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 lib/libc/include/spinlock.h diff --git a/lib/libc/include/spinlock.h b/lib/libc/include/spinlock.h new file mode 100644 index 000000000000..5c6426448f29 --- /dev/null +++ b/lib/libc/include/spinlock.h @@ -0,0 +1,52 @@ +/* + * Copyright (c) 1998 John Birrell . + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by John Birrell. + * 4. Neither the name of the author nor the names of any co-contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $Id$ + * + * Lock definitions used in both libc and libpthread. + * + */ + +#ifndef _SPINLOCK_H_ +#define _SPINLOCK_H_ +#include + +/* + * Thread function prototype definitions: + */ +__BEGIN_DECLS +long _atomic_lock __P((long *, long)); +long _atomic_unlock __P((long *)); +void _spinlock __P((long *)); +void _spinunlock __P((long *)); +__END_DECLS + +#endif /* _SPINLOCK_H_ */