diff options
| author | d <> | 1998-12-21 07:36:58 +0000 |
|---|---|---|
| committer | d <> | 1998-12-21 07:36:58 +0000 |
| commit | 6dc7513a633fd54f42172958ea7fc81510efc8dd (patch) | |
| tree | fed46204fc86fde19cb2536891efb590baf0d1c4 /src/lib/libc | |
| parent | 99b122da0763e128d032140e009efd47e0f12bec (diff) | |
| download | openbsd-6dc7513a633fd54f42172958ea7fc81510efc8dd.tar.gz openbsd-6dc7513a633fd54f42172958ea7fc81510efc8dd.tar.bz2 openbsd-6dc7513a633fd54f42172958ea7fc81510efc8dd.zip | |
md spinlock
Diffstat (limited to 'src/lib/libc')
| -rw-r--r-- | src/lib/libc/include/spinlock.h | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/src/lib/libc/include/spinlock.h b/src/lib/libc/include/spinlock.h deleted file mode 100644 index 31e7744f0a..0000000000 --- a/src/lib/libc/include/spinlock.h +++ /dev/null | |||
| @@ -1,74 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>. | ||
| 3 | * All rights reserved. | ||
| 4 | * | ||
| 5 | * Redistribution and use in source and binary forms, with or without | ||
| 6 | * modification, are permitted provided that the following conditions | ||
| 7 | * are met: | ||
| 8 | * 1. Redistributions of source code must retain the above copyright | ||
| 9 | * notice, this list of conditions and the following disclaimer. | ||
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 11 | * notice, this list of conditions and the following disclaimer in the | ||
| 12 | * documentation and/or other materials provided with the distribution. | ||
| 13 | * 3. All advertising materials mentioning features or use of this software | ||
| 14 | * must display the following acknowledgement: | ||
| 15 | * This product includes software developed by John Birrell. | ||
| 16 | * 4. Neither the name of the author nor the names of any co-contributors | ||
| 17 | * may be used to endorse or promote products derived from this software | ||
| 18 | * without specific prior written permission. | ||
| 19 | * | ||
| 20 | * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND | ||
| 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | ||
| 24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| 25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
| 26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
| 28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
| 29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
| 30 | * SUCH DAMAGE. | ||
| 31 | * | ||
| 32 | * $Id: spinlock.h,v 1.2 1998/12/18 05:59:17 d Exp $ | ||
| 33 | * $OpenBSD: spinlock.h,v 1.2 1998/12/18 05:59:17 d Exp $ | ||
| 34 | * | ||
| 35 | * Lock definitions used in both libc and libpthread. | ||
| 36 | * | ||
| 37 | */ | ||
| 38 | |||
| 39 | #ifndef _SPINLOCK_H_ | ||
| 40 | #define _SPINLOCK_H_ | ||
| 41 | #include <sys/cdefs.h> | ||
| 42 | #include <sys/types.h> | ||
| 43 | |||
| 44 | /* | ||
| 45 | * Lock structure with room for debugging information. | ||
| 46 | */ | ||
| 47 | typedef struct { | ||
| 48 | volatile register_t access_lock; | ||
| 49 | volatile long lock_owner; | ||
| 50 | volatile const char * fname; | ||
| 51 | volatile int lineno; | ||
| 52 | } spinlock_t; | ||
| 53 | |||
| 54 | #define _SPINLOCK_INITIALIZER { 0, 0, 0, 0 } | ||
| 55 | |||
| 56 | #define _SPINUNLOCK(_lck) (_lck)->access_lock = 0 | ||
| 57 | #ifdef _LOCK_DEBUG | ||
| 58 | #define _SPINLOCK(_lck) _spinlock_debug(_lck, __FILE__, __LINE__) | ||
| 59 | #else | ||
| 60 | #define _SPINLOCK(_lck) _spinlock(_lck) | ||
| 61 | #endif | ||
| 62 | |||
| 63 | /* | ||
| 64 | * Thread function prototype definitions: | ||
| 65 | */ | ||
| 66 | __BEGIN_DECLS | ||
| 67 | register_t _atomic_lock __P((volatile register_t *)); | ||
| 68 | int _atomic_is_locked __P((volatile register_t *)); | ||
| 69 | register_t _thread_slow_atomic_lock __P((volatile register_t *)); | ||
| 70 | void _spinlock __P((spinlock_t *)); | ||
| 71 | void _spinlock_debug __P((spinlock_t *, const char *, int)); | ||
| 72 | __END_DECLS | ||
| 73 | |||
| 74 | #endif /* _SPINLOCK_H_ */ | ||
