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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