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author | d <> | 1998-12-21 07:36:58 +0000 |
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committer | d <> | 1998-12-21 07:36:58 +0000 |
commit | 6dc7513a633fd54f42172958ea7fc81510efc8dd (patch) | |
tree | fed46204fc86fde19cb2536891efb590baf0d1c4 /src | |
parent | 99b122da0763e128d032140e009efd47e0f12bec (diff) | |
download | openbsd-6dc7513a633fd54f42172958ea7fc81510efc8dd.tar.gz openbsd-6dc7513a633fd54f42172958ea7fc81510efc8dd.tar.bz2 openbsd-6dc7513a633fd54f42172958ea7fc81510efc8dd.zip |
md spinlock
Diffstat (limited to 'src')
-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_ */ | ||