diff options
| author | Ted Unangst <tedu@cvs.openbsd.org> | 2003-12-28 17:14:34 +0000 |
|---|---|---|
| committer | Ted Unangst <tedu@cvs.openbsd.org> | 2003-12-28 17:14:34 +0000 |
| commit | eae1244b641aac9192c14ebf08a050c6e3df3dd3 (patch) | |
| tree | ba0d0a8a59bec0d4ee10bfe9482bf0c3a9f95235 | |
| parent | 3d316bab4af08e460ae5ada182a9926606f0cbe1 (diff) | |
multiple include protection
| -rw-r--r-- | sys/sys/rwlock.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/sys/rwlock.h b/sys/sys/rwlock.h index 1c25afe5cf8..247bef79286 100644 --- a/sys/sys/rwlock.h +++ b/sys/sys/rwlock.h @@ -1,4 +1,4 @@ -/* $OpenBSD: rwlock.h,v 1.1 2003/11/18 06:11:10 tedu Exp $ */ +/* $OpenBSD: rwlock.h,v 1.2 2003/12/28 17:14:33 tedu Exp $ */ /* * Copyright (c) 2002 Artur Grabowski <art@openbsd.org> * All rights reserved. @@ -65,6 +65,9 @@ * (XXX - the rest of the API for this is not invented yet). */ +#ifndef SYS_RWLOCK_H +#define SYS_RWLOCK_H + struct rwlock { __volatile unsigned long rwl_owner; }; @@ -96,3 +99,4 @@ void rw_exit_write(struct rwlock *); void rw_enter_wait(struct rwlock *, struct proc *, int); void rw_exit_waiters(struct rwlock *, unsigned long); +#endif |