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
121
122
123
124
125
126
127
128
129
130
|
/*
* Original code from jemalloc with this license:
*
* Copyright (C) 2002-2013 Jason Evans <jasone@canonware.com>.
* All rights reserved.
* Copyright (C) 2007-2012 Mozilla Foundation. All rights reserved.
* Copyright (C) 2009-2013 Facebook, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice(s),
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice(s),
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2016 Blender Foundation.
* All rights reserved.
*
* The Original Code is: adapted from jemalloc.
*/
#ifndef __ATOMIC_OPS_UTILS_H__
#define __ATOMIC_OPS_UTILS_H__
#include <limits.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <assert.h>
/* little macro so inline keyword works */
#if defined(_MSC_VER)
# define ATOMIC_INLINE static __forceinline
#else
# define ATOMIC_INLINE static inline __attribute__((always_inline))
#endif
#ifdef __GNUC__
# define _ATOMIC_LIKELY(x) __builtin_expect(!!(x), 1)
# define _ATOMIC_UNLIKELY(x) __builtin_expect(!!(x), 0)
# define _ATOMIC_MAYBE_UNUSED __attribute__((unused))
#else
# define _ATOMIC_LIKELY(x) (x)
# define _ATOMIC_UNLIKELY(x) (x)
# define _ATOMIC_MAYBE_UNUSED
#endif
#if defined(__SIZEOF_POINTER__)
# define LG_SIZEOF_PTR __SIZEOF_POINTER__
#elif defined(UINTPTR_MAX)
# if (UINTPTR_MAX == 0xFFFFFFFF)
# define LG_SIZEOF_PTR 4
# elif (UINTPTR_MAX == 0xFFFFFFFFFFFFFFFF)
# define LG_SIZEOF_PTR 8
# endif
#elif defined(__WORDSIZE) /* Fallback for older glibc and cpp */
# if (__WORDSIZE == 32)
# define LG_SIZEOF_PTR 4
# elif (__WORDSIZE == 64)
# define LG_SIZEOF_PTR 8
# endif
#endif
#ifndef LG_SIZEOF_PTR
# error "Cannot find pointer size"
#endif
#if (UINT_MAX == 0xFFFFFFFF)
# define LG_SIZEOF_INT 4
#elif (UINT_MAX == 0xFFFFFFFFFFFFFFFF)
# define LG_SIZEOF_INT 8
#else
# error "Cannot find int size"
#endif
/* Copied from BLI_utils... */
/* C++ can't use _Static_assert, expects static_assert() but c++0x only,
* Coverity also errors out. */
#if (!defined(__cplusplus)) && (!defined(__COVERITY__)) && \
(defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 406)) /* gcc4.6+ only */
# define ATOMIC_STATIC_ASSERT(a, msg) __extension__ _Static_assert(a, msg);
#else
/* Code adapted from http://www.pixelbeat.org/programming/gcc/static_assert.html */
/* Note we need the two concats below because arguments to ## are not expanded, so we need to
* expand __LINE__ with one indirection before doing the actual concatenation. */
# define ATOMIC_ASSERT_CONCAT_(a, b) a##b
# define ATOMIC_ASSERT_CONCAT(a, b) ATOMIC_ASSERT_CONCAT_(a, b)
/* These can't be used after statements in c89. */
# if defined(__COUNTER__) /* MSVC */
# define ATOMIC_STATIC_ASSERT(a, msg) \
; \
enum { ATOMIC_ASSERT_CONCAT(static_assert_, __COUNTER__) = 1 / (int)(!!(a)) };
# else /* older gcc, clang... */
/* This can't be used twice on the same line so ensure if using in headers
* that the headers are not included twice (by wrapping in #ifndef...#endif)
* Note it doesn't cause an issue when used on same line of separate modules
* compiled with gcc -combine -fwhole-program. */
# define ATOMIC_STATIC_ASSERT(a, msg) \
; \
enum { ATOMIC_ASSERT_CONCAT(assert_line_, __LINE__) = 1 / (int)(!!(a)) };
# endif
#endif
#endif /* __ATOMIC_OPS_UTILS_H__ */
|
