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
|
// Common/Alloc.cpp
#include "StdAfx.h"
#ifdef _WIN32
#include "MyWindows.h"
#else
#include <stdlib.h>
#endif
#include "Alloc.h"
/* #define _SZ_ALLOC_DEBUG */
/* use _SZ_ALLOC_DEBUG to debug alloc/free operations */
#ifdef _SZ_ALLOC_DEBUG
#include <stdio.h>
int g_allocCount = 0;
int g_allocCountMid = 0;
int g_allocCountBig = 0;
#endif
void *MyAlloc(size_t size) throw()
{
if (size == 0)
return 0;
#ifdef _SZ_ALLOC_DEBUG
fprintf(stderr, "\nAlloc %10d bytes; count = %10d", size, g_allocCount++);
#endif
return ::malloc(size);
}
void MyFree(void *address) throw()
{
#ifdef _SZ_ALLOC_DEBUG
if (address != 0)
fprintf(stderr, "\nFree; count = %10d", --g_allocCount);
#endif
::free(address);
}
#ifdef _WIN32
void *MidAlloc(size_t size) throw()
{
if (size == 0)
return 0;
#ifdef _SZ_ALLOC_DEBUG
fprintf(stderr, "\nAlloc_Mid %10d bytes; count = %10d", size, g_allocCountMid++);
#endif
return ::VirtualAlloc(0, size, MEM_COMMIT, PAGE_READWRITE);
}
void MidFree(void *address) throw()
{
#ifdef _SZ_ALLOC_DEBUG
if (address != 0)
fprintf(stderr, "\nFree_Mid; count = %10d", --g_allocCountMid);
#endif
if (address == 0)
return;
::VirtualFree(address, 0, MEM_RELEASE);
}
#ifndef MEM_LARGE_PAGES
#define _7ZIP_NO_LARGE_PAGES
#endif
// define _7ZIP_NO_LARGE_PAGES if you don't need LARGE_PAGES support
// #define _7ZIP_NO_LARGE_PAGES
#ifndef _7ZIP_NO_LARGE_PAGES
static SIZE_T g_LargePageSize =
#ifdef _WIN64
(1 << 21);
#else
(1 << 22);
#endif
typedef SIZE_T (WINAPI *GetLargePageMinimumP)();
#endif
bool SetLargePageSize()
{
#ifndef _7ZIP_NO_LARGE_PAGES
GetLargePageMinimumP largePageMinimum = (GetLargePageMinimumP)
::GetProcAddress(::GetModuleHandle(TEXT("kernel32.dll")), "GetLargePageMinimum");
if (largePageMinimum == 0)
return false;
SIZE_T size = largePageMinimum();
if (size == 0 || (size & (size - 1)) != 0)
return false;
g_LargePageSize = size;
#endif
return true;
}
void *BigAlloc(size_t size) throw()
{
if (size == 0)
return 0;
#ifdef _SZ_ALLOC_DEBUG
fprintf(stderr, "\nAlloc_Big %10d bytes; count = %10d", size, g_allocCountBig++);
#endif
#ifndef _7ZIP_NO_LARGE_PAGES
if (size >= (1 << 18))
{
void *res = ::VirtualAlloc(0, (size + g_LargePageSize - 1) & (~(g_LargePageSize - 1)),
MEM_COMMIT | MEM_LARGE_PAGES, PAGE_READWRITE);
if (res != 0)
return res;
}
#endif
return ::VirtualAlloc(0, size, MEM_COMMIT, PAGE_READWRITE);
}
void BigFree(void *address) throw()
{
#ifdef _SZ_ALLOC_DEBUG
if (address != 0)
fprintf(stderr, "\nFree_Big; count = %10d", --g_allocCountBig);
#endif
if (address == 0)
return;
::VirtualFree(address, 0, MEM_RELEASE);
}
#endif
|