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
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_SAL_RTL_ALLOC_IMPL_HXX
#define INCLUDED_SAL_RTL_ALLOC_IMPL_HXX
#include "sal/types.h"
/** Alignment macros
*/
#if SAL_TYPES_ALIGNMENT4 > 1
#define RTL_MEMORY_ALIGNMENT_4 SAL_TYPES_ALIGNMENT4
#else
#define RTL_MEMORY_ALIGNMENT_4 sizeof(int)
#endif /* SAL_TYPES_ALIGNMENT4 */
#if SAL_TYPES_ALIGNMENT8 > 1
#define RTL_MEMORY_ALIGNMENT_8 SAL_TYPES_ALIGNMENT8
#else
#define RTL_MEMORY_ALIGNMENT_8 sizeof(void*)
#endif /* SAL_TYPES_ALIGNMENT8 */
#if 0 /* @@@ */
#define RTL_MEMORY_ALIGNMENT_1 8
#define RTL_MEMORY_ALIGNMENT_2 (sizeof(void*) * 2)
#endif /* @@@ */
#define RTL_MEMORY_ALIGN(value, align) (((value) + ((align) - 1)) & ~((align) - 1))
#define RTL_MEMORY_ISP2(value) (((value) & ((value) - 1)) == 0)
#define RTL_MEMORY_P2ALIGN(value, align) ((value) & -(sal_IntPtr)(align))
#define RTL_MEMORY_P2ROUNDUP(value, align) \
(-(-(sal_IntPtr)(value) & -(sal_IntPtr)(align)))
#define RTL_MEMORY_P2END(value, align) \
(-(~(sal_IntPtr)(value) & -(sal_IntPtr)(align)))
/** printf() format specifier(s)
* (from C90 <sys/int_fmtio.h>)
*/
#ifndef PRIu64
#if defined(_MSC_VER)
#define PRIu64 "I64u"
#else /* !_MSC_VER */
#define PRIu64 "llu"
#endif /* !_MSC_VER */
#endif /* PRIu64 */
/** highbit(): log2() + 1
* (complexity O(1))
*/
static inline int
highbit(sal_Size n)
{
int k = 1;
if (n == 0)
return 0;
#if SAL_TYPES_SIZEOFLONG == 8
if (n & 0xffffffff00000000ul)
{
k |= 32;
n >>= 32;
}
#endif
if (n & 0xffff0000)
{
k |= 16;
n >>= 16;
}
if (n & 0xff00)
{
k |= 8;
n >>= 8;
}
if (n & 0xf0)
{
k |= 4;
n >>= 4;
}
if (n & 0x0c)
{
k |= 2;
n >>= 2;
}
if (n & 0x02)
k++;
return k;
}
/** lowbit(): find first bit set
* (complexity O(1))
*/
static inline int
lowbit(sal_Size n)
{
int k = 1;
if (n == 0)
return 0;
#if SAL_TYPES_SIZEOFLONG == 8
if (!(n & 0xffffffff))
{
k |= 32;
n >>= 32;
}
#endif
if (!(n & 0xffff))
{
k |= 16;
n >>= 16;
}
if (!(n & 0xff))
{
k |= 8;
n >>= 8;
}
if (!(n & 0xf))
{
k |= 4;
n >>= 4;
}
if (!(n & 0x3))
{
k |= 2;
n >>= 2;
}
if (!(n & 0x1))
k++;
return k;
}
/** Queue manipulation macros
* (doubly linked circular list)
* (complexity O(1))
*/
#define QUEUE_STARTED_NAMED(entry, name) \
(((entry)->m_##name##next == (entry)) && ((entry)->m_##name##prev == (entry)))
#define QUEUE_START_NAMED(entry, name) \
{ \
(entry)->m_##name##next = (entry); \
(entry)->m_##name##prev = (entry); \
}
#define QUEUE_REMOVE_NAMED(entry, name) \
{ \
(entry)->m_##name##prev->m_##name##next = (entry)->m_##name##next; \
(entry)->m_##name##next->m_##name##prev = (entry)->m_##name##prev; \
QUEUE_START_NAMED(entry, name); \
}
#define QUEUE_INSERT_HEAD_NAMED(head, entry, name) \
{ \
(entry)->m_##name##prev = (head); \
(entry)->m_##name##next = (head)->m_##name##next; \
(head)->m_##name##next = (entry); \
(entry)->m_##name##next->m_##name##prev = (entry); \
}
#define QUEUE_INSERT_TAIL_NAMED(head, entry, name) \
{ \
(entry)->m_##name##next = (head); \
(entry)->m_##name##prev = (head)->m_##name##prev; \
(head)->m_##name##prev = (entry); \
(entry)->m_##name##prev->m_##name##next = (entry); \
}
/** rtl_memory_lock_type
* (platform dependent)
*/
#if defined(SAL_UNX)
#include <unistd.h>
#include <pthread.h>
typedef pthread_mutex_t rtl_memory_lock_type;
#define RTL_MEMORY_LOCK_INIT(lock) pthread_mutex_init((lock), nullptr)
#define RTL_MEMORY_LOCK_DESTROY(lock) pthread_mutex_destroy((lock))
#define RTL_MEMORY_LOCK_ACQUIRE(lock) pthread_mutex_lock((lock))
#define RTL_MEMORY_LOCK_RELEASE(lock) pthread_mutex_unlock((lock))
#elif defined(SAL_W32)
#define WIN32_LEAN_AND_MEAN
#ifdef _MSC_VER
#pragma warning(push,1) /* disable warnings within system headers */
#endif
#include <windows.h>
#ifdef _MSC_VER
#pragma warning(pop)
#endif
typedef CRITICAL_SECTION rtl_memory_lock_type;
#define RTL_MEMORY_LOCK_INIT(lock) InitializeCriticalSection((lock))
#define RTL_MEMORY_LOCK_DESTROY(lock) DeleteCriticalSection((lock))
#define RTL_MEMORY_LOCK_ACQUIRE(lock) EnterCriticalSection((lock))
#define RTL_MEMORY_LOCK_RELEASE(lock) LeaveCriticalSection((lock))
#else
#error Unknown platform
#endif /* SAL_UNX | SAL_W32 */
/** Cache creation flags.
* @internal
*/
#define RTL_CACHE_FLAG_NOMAGAZINE (1 << 13) /* w/o magazine layer */
#define RTL_CACHE_FLAG_QUANTUMCACHE (2 << 13) /* used as arena quantum cache */
typedef enum { AMode_CUSTOM, AMode_SYSTEM, AMode_UNSET } AllocMode;
extern AllocMode alloc_mode;
#endif // INCLUDED_SAL_RTL_ALLOC_IMPL_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
