1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/* libc-internal interface for mutex locks. Stub 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
/* 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)
/* Define an initialized lock variable NAME with storage class CLASS. */
#define __libc_lock_define_initialized(CLASS,NAME)
/* Define an initialized recursive lock variable NAME with storage
class CLASS. */
#define __libc_lock_define_initialized_recursive(CLASS,NAME)
/* Initialize the named lock variable, leaving it in a consistent, unlocked
state. */
#define __libc_lock_init(NAME)
/* Same as last but this time we initialize a recursive mutex. */
#define __libc_lock_init_recursive(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)
/* Finalize recursive named lock. */
#define __libc_lock_fini_recursive(NAME)
/* Lock the named lock variable. */
#define __libc_lock_lock(NAME)
/* Lock the recursive named lock variable. */
#define __libc_lock_lock_recursive(NAME)
/* Try to lock the named lock variable. */
#define __libc_lock_trylock(NAME) 0
/* Try to lock the recursive named lock variable. */
#define __libc_lock_trylock_recursive(NAME) 0
/* Unlock the named lock variable. */
#define __libc_lock_unlock(NAME)
/* Unlock the recursive named lock variable. */
#define __libc_lock_unlock_recursive(NAME)
/* Start critical region with cleanup. */
#define __libc_cleanup_region_start(FCT, ARG)
/* End critical region with cleanup. */
#define __libc_cleanup_region_end(DOIT)
/* We need portable names for some of the functions. */
#define __libc_mutex_unlock
#endif /* libc-lock.h */
|
