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
|
#ifndef PRISM_INTERNAL_ALLOCATOR_H
#define PRISM_INTERNAL_ALLOCATOR_H
/* If you build Prism with a custom allocator, configure it with
* "-D PRISM_XALLOCATOR" to use your own allocator that defines xmalloc,
* xrealloc, xcalloc, and xfree.
*
* For example, your `prism_xallocator.h` file could look like this:
*
* ```
* #ifndef PRISM_XALLOCATOR_H
* #define PRISM_XALLOCATOR_H
* #define xmalloc my_malloc
* #define xrealloc my_realloc
* #define xcalloc my_calloc
* #define xfree my_free
* #define xrealloc_sized my_realloc_sized // (optional)
* #define xfree_sized my_free_sized // (optional)
* #endif
* ```
*/
#ifdef PRISM_XALLOCATOR
#include "prism_xallocator.h"
#else
#ifndef xmalloc
/* The malloc function that should be used. This can be overridden with
* the PRISM_XALLOCATOR define. */
#define xmalloc malloc
#endif
#ifndef xrealloc
/* The realloc function that should be used. This can be overridden with
* the PRISM_XALLOCATOR define. */
#define xrealloc realloc
#endif
#ifndef xcalloc
/* The calloc function that should be used. This can be overridden with
* the PRISM_XALLOCATOR define. */
#define xcalloc calloc
#endif
#ifndef xfree
/* The free function that should be used. This can be overridden with
* the PRISM_XALLOCATOR define. */
#define xfree free
#endif
#endif
#ifndef xfree_sized
/* The free_sized function that should be used. This can be overridden with
* the PRISM_XALLOCATOR define. If not defined, defaults to calling xfree.
*/
#define xfree_sized(p, s) xfree(((void)(s), (p)))
#endif
#ifndef xrealloc_sized
/* The xrealloc_sized function that should be used. This can be overridden
* with the PRISM_XALLOCATOR define. If not defined, defaults to calling
* xrealloc. */
#define xrealloc_sized(p, ns, os) xrealloc((p), ((void)(os), (ns)))
#endif
#ifdef PRISM_BUILD_DEBUG
#include "prism/internal/allocator_debug.h"
#endif
#endif
|
