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
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
/*
* Copyright © 2008 Ryan Lortie
* Copyright © 2010 Codethink Limited
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
* Author: Ryan Lortie <desrt@desrt.ca>
*/
#ifndef __G_BITLOCK_H__
#define __G_BITLOCK_H__
#include <glib/gtypes.h>
#if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
#error "Only <glib.h> can be included directly."
#endif
G_BEGIN_DECLS
GLIB_AVAILABLE_IN_ALL
void g_bit_lock (volatile gint *address,
gint lock_bit);
GLIB_AVAILABLE_IN_2_86
void g_bit_lock_and_get (gint *address,
guint lock_bit,
gint *out_val);
GLIB_AVAILABLE_IN_ALL
gboolean g_bit_trylock (volatile gint *address,
gint lock_bit);
GLIB_AVAILABLE_IN_ALL
void g_bit_unlock (volatile gint *address,
gint lock_bit);
GLIB_AVAILABLE_IN_2_86
void g_bit_unlock_and_set (gint *address,
guint lock_bit,
gint new_val,
gint preserve_mask);
GLIB_AVAILABLE_IN_ALL
void g_pointer_bit_lock (volatile void *address,
gint lock_bit);
GLIB_AVAILABLE_IN_2_80
void g_pointer_bit_lock_and_get (gpointer address,
guint lock_bit,
guintptr *out_ptr);
GLIB_AVAILABLE_IN_ALL
gboolean g_pointer_bit_trylock (volatile void *address,
gint lock_bit);
GLIB_AVAILABLE_IN_ALL
void g_pointer_bit_unlock (volatile void *address,
gint lock_bit);
GLIB_AVAILABLE_IN_2_80
gpointer g_pointer_bit_lock_mask_ptr (gpointer ptr,
guint lock_bit,
gboolean set,
guintptr preserve_mask,
gpointer preserve_ptr);
GLIB_AVAILABLE_IN_2_80
void g_pointer_bit_unlock_and_set (void *address,
guint lock_bit,
gpointer ptr,
guintptr preserve_mask);
#ifdef __GNUC__
#define g_pointer_bit_lock(address, lock_bit) \
(G_GNUC_EXTENSION ({ \
G_STATIC_ASSERT (sizeof *(address) == sizeof (gpointer)); \
g_pointer_bit_lock ((address), (lock_bit)); \
}))
#define g_pointer_bit_lock_and_get(address, lock_bit, out_ptr) \
(G_GNUC_EXTENSION ({ \
G_STATIC_ASSERT (sizeof *(address) == sizeof (gpointer)); \
g_pointer_bit_lock_and_get ((address), (lock_bit), (out_ptr)); \
}))
#define g_pointer_bit_trylock(address, lock_bit) \
(G_GNUC_EXTENSION ({ \
G_STATIC_ASSERT (sizeof *(address) == sizeof (gpointer)); \
g_pointer_bit_trylock ((address), (lock_bit)); \
}))
#define g_pointer_bit_unlock(address, lock_bit) \
(G_GNUC_EXTENSION ({ \
G_STATIC_ASSERT (sizeof *(address) == sizeof (gpointer)); \
g_pointer_bit_unlock ((address), (lock_bit)); \
}))
#define g_pointer_bit_unlock_and_set(address, lock_bit, ptr, preserve_mask) \
(G_GNUC_EXTENSION ({ \
G_STATIC_ASSERT (sizeof *(address) == sizeof (gpointer)); \
g_pointer_bit_unlock_and_set ((address), (lock_bit), (ptr), (preserve_mask)); \
}))
#endif
G_END_DECLS
#endif /* __G_BITLOCK_H_ */
|
