1 /*
2  * Copyright 2010, Lloyd Hilaiel.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are
6  * met:
7  *
8  *  1. Redistributions of source code must retain the above copyright
9  *     notice, this list of conditions and the following disclaimer.
10  *
11  *  2. Redistributions in binary form must reproduce the above copyright
12  *     notice, this list of conditions and the following disclaimer in
13  *     the documentation and/or other materials provided with the
14  *     distribution.
15  *
16  *  3. Neither the name of Lloyd Hilaiel nor the names of its
17  *     contributors may be used to endorse or promote products derived
18  *     from this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
22  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
23  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
24  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
25  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
26  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
28  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
29  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30  * POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 #ifndef __YAJL_COMMON_H__
34 #define __YAJL_COMMON_H__
35 
36 #ifdef __cplusplus
37 extern "C" {
38 #endif
39 
40 #define YAJL_MAX_DEPTH 128
41 
42 /* msft dll export gunk.  To build a DLL on windows, you
43  * must define WIN32, YAJL_SHARED, and YAJL_BUILD.  To use a shared
44  * DLL, you must define YAJL_SHARED and WIN32 */
45 #if defined(WIN32) && defined(YAJL_SHARED)
46 #  ifdef YAJL_BUILD
47 #    define YAJL_API __declspec(dllexport)
48 #  else
49 #    define YAJL_API __declspec(dllimport)
50 #  endif
51 #else
52 #  define YAJL_API
53 #endif
54 
55 /** pointer to a malloc function, supporting client overriding memory
56  *  allocation routines */
57 typedef void * (*yajl_malloc_func)(void *ctx, unsigned int sz);
58 
59 /** pointer to a free function, supporting client overriding memory
60  *  allocation routines */
61 typedef void (*yajl_free_func)(void *ctx, void * ptr);
62 
63 /** pointer to a realloc function which can resize an allocation. */
64 typedef void * (*yajl_realloc_func)(void *ctx, void * ptr, unsigned int sz);
65 
66 /** A structure which can be passed to yajl_*_alloc routines to allow the
67  *  client to specify memory allocation functions to be used. */
68 typedef struct
69 {
70     /** pointer to a function that can allocate uninitialized memory */
71     yajl_malloc_func malloc;
72     /** pointer to a function that can resize memory allocations */
73     yajl_realloc_func realloc;
74     /** pointer to a function that can free memory allocated using
75      *  reallocFunction or mallocFunction */
76     yajl_free_func free;
77     /** a context pointer that will be passed to above allocation routines */
78     void * ctx;
79 } yajl_alloc_funcs;
80 
81 #ifdef __cplusplus
82 }
83 #endif
84 
85 #endif
86