1/**************************************************************************
2 *
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28
29/*
30 * Memory functions
31 */
32
33
34#ifndef U_MEMORY_H
35#define U_MEMORY_H
36
37
38#include "util/u_pointer.h"
39#include "util/u_debug.h"
40#include "os/os_memory.h"
41
42
43#ifdef __cplusplus
44extern "C" {
45#endif
46
47
48#define MALLOC(_size)  os_malloc(_size)
49
50#define CALLOC(_count, _size) os_calloc(_count, _size)
51
52#define FREE(_ptr ) os_free(_ptr)
53
54#define REALLOC(_ptr, _old_size, _size) os_realloc(_ptr, _old_size, _size)
55
56#define MALLOC_STRUCT(T)   (struct T *) MALLOC(sizeof(struct T))
57
58#define CALLOC_STRUCT(T)   (struct T *) CALLOC(1, sizeof(struct T))
59
60#define CALLOC_VARIANT_LENGTH_STRUCT(T,more_size)   ((struct T *) CALLOC(1, sizeof(struct T) + more_size))
61
62
63#define align_malloc(_size, _alignment) os_malloc_aligned(_size, _alignment)
64#define align_free(_ptr) os_free_aligned(_ptr)
65
66
67/**
68 * Duplicate a block of memory.
69 */
70static INLINE void *
71mem_dup(const void *src, uint size)
72{
73   void *dup = MALLOC(size);
74   if (dup)
75      memcpy(dup, src, size);
76   return dup;
77}
78
79
80/**
81 * Number of elements in an array.
82 */
83#ifndef Elements
84#define Elements(x) (sizeof(x)/sizeof((x)[0]))
85#endif
86
87
88/**
89 * Offset of a field in a struct, in bytes.
90 */
91#define Offset(TYPE, MEMBER) ((uintptr_t)&(((TYPE *)NULL)->MEMBER))
92
93
94
95#ifdef __cplusplus
96}
97#endif
98
99
100#endif /* U_MEMORY_H */
101