1 /**************************************************************************
2 *
3 * Copyright 2008-2010 VMware, Inc.
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 VMWARE 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 * OS memory management abstractions for the standard C library.
31 */
32
33
34 #ifndef _OS_MEMORY_H_
35 #error "Must not be included directly. Include os_memory.h instead"
36 #endif
37
38 #include <stdlib.h>
39
40 #include "pipe/p_compiler.h"
41
42
43 #define os_malloc(_size) malloc(_size)
44 #define os_calloc(_count, _size ) calloc(_count, _size )
45 #define os_free(_ptr) free(_ptr)
46
47 #define os_realloc( _old_ptr, _old_size, _new_size) \
48 realloc(_old_ptr, _new_size + 0*(_old_size))
49
50
51 #if defined(HAVE_POSIX_MEMALIGN)
52
53 static inline void *
os_malloc_aligned(size_t size,size_t alignment)54 os_malloc_aligned(size_t size, size_t alignment)
55 {
56 void *ptr;
57 alignment = (alignment + sizeof(void*) - 1) & ~(sizeof(void*) - 1);
58 if(posix_memalign(&ptr, alignment, size) != 0)
59 return NULL;
60 return ptr;
61 }
62
63 #define os_free_aligned(_ptr) free(_ptr)
64
65 #elif defined(PIPE_OS_WINDOWS)
66
67 #include <malloc.h>
68
69 #define os_malloc_aligned(_size, _align) _aligned_malloc(_size, _align)
70 #define os_free_aligned(_ptr) _aligned_free(_ptr)
71
72 #else
73
74 #include "os_memory_aligned.h"
75
76 #endif
77