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
|
/**************************************************************************
*
* Copyright 2008-2010 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/*
* OS memory management abstractions for Windows kernel.
*/
#ifndef _OS_MEMORY_H_
#error "Must not be included directly. Include os_memory.h instead"
#endif
#include "pipe/p_compiler.h"
#ifdef __cplusplus
extern "C" {
#endif
#if defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY)
void * __stdcall
EngAllocMem(unsigned long Flags,
unsigned long MemSize,
unsigned long Tag);
void __stdcall
EngFreeMem(void *Mem);
#define os_malloc(_size) EngAllocMem(0, _size, 'D3AG')
#define os_calloc(_count, _size) EngAllocMem(1, (_count)*(_size), 'D3AG')
#define _os_free(_ptr) EngFreeMem(_ptr)
#elif defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT)
void *
ExAllocatePool(unsigned long PoolType,
size_t NumberOfBytes);
void
ExFreePool(void *P);
#define os_malloc(_size) ExAllocatePool(0, _size)
#define _os_free(_ptr) ExFreePool(_ptr)
static INLINE void *
os_calloc(unsigned count, unsigned size)
{
void *ptr = os_malloc(count * size);
if (ptr) {
memset(ptr, 0, count * size);
}
return ptr;
}
#else
#error "Unsupported subsystem"
#endif
static INLINE void
os_free( void *ptr )
{
if (ptr) {
_os_free(ptr);
}
}
static INLINE void *
os_realloc(void *old_ptr, unsigned old_size, unsigned new_size)
{
void *new_ptr = NULL;
if (new_size != 0) {
unsigned copy_size = old_size < new_size ? old_size : new_size;
new_ptr = os_malloc( new_size );
if (new_ptr && old_ptr && copy_size) {
memcpy(new_ptr, old_ptr, copy_size);
}
}
os_free(old_ptr);
return new_ptr;
}
#ifdef __cplusplus
}
#endif
#include "os_memory_aligned.h"
|
