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1 | /* | |
2 | * Copyright (c) 2009-2016 Petri Lehtinen <petri@digip.org> | |
3 | * | |
4 | * Jansson is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the MIT license. See LICENSE for details. | |
6 | */ | |
7 | ||
8 | #ifndef JANSSON_PRIVATE_H | |
9 | #define JANSSON_PRIVATE_H | |
10 | ||
11 | #ifdef HAVE_CONFIG_H | |
12 | #include <jansson_private_config.h> | |
13 | #endif | |
14 | ||
15 | #include <stddef.h> | |
16 | #include "jansson.h" | |
17 | #include "hashtable.h" | |
18 | #include "strbuffer.h" | |
19 | ||
20 | #define container_of(ptr_, type_, member_) \ | |
21 | ((type_ *)((char *)ptr_ - offsetof(type_, member_))) | |
22 | ||
23 | /* On some platforms, max() may already be defined */ | |
24 | #ifndef max | |
25 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
26 | #endif | |
27 | ||
28 | /* va_copy is a C99 feature. In C89 implementations, it's sometimes | |
29 | available as __va_copy. If not, memcpy() should do the trick. */ | |
30 | #ifndef va_copy | |
31 | #ifdef __va_copy | |
32 | #define va_copy __va_copy | |
33 | #else | |
34 | #define va_copy(a, b) memcpy(&(a), &(b), sizeof(va_list)) | |
35 | #endif | |
36 | #endif | |
37 | ||
38 | typedef struct { | |
39 | json_t json; | |
40 | hashtable_t hashtable; | |
41 | } json_object_t; | |
42 | ||
43 | typedef struct { | |
44 | json_t json; | |
45 | size_t size; | |
46 | size_t entries; | |
47 | json_t **table; | |
48 | } json_array_t; | |
49 | ||
50 | typedef struct { | |
51 | json_t json; | |
52 | char *value; | |
53 | size_t length; | |
54 | } json_string_t; | |
55 | ||
56 | typedef struct { | |
57 | json_t json; | |
58 | double value; | |
59 | } json_real_t; | |
60 | ||
61 | typedef struct { | |
62 | json_t json; | |
63 | json_int_t value; | |
64 | } json_integer_t; | |
65 | ||
66 | #define json_to_object(json_) container_of(json_, json_object_t, json) | |
67 | #define json_to_array(json_) container_of(json_, json_array_t, json) | |
68 | #define json_to_string(json_) container_of(json_, json_string_t, json) | |
69 | #define json_to_real(json_) container_of(json_, json_real_t, json) | |
70 | #define json_to_integer(json_) container_of(json_, json_integer_t, json) | |
71 | ||
72 | /* Create a string by taking ownership of an existing buffer */ | |
73 | json_t *jsonp_stringn_nocheck_own(const char *value, size_t len); | |
74 | ||
75 | /* Error message formatting */ | |
76 | void jsonp_error_init(json_error_t *error, const char *source); | |
77 | void jsonp_error_set_source(json_error_t *error, const char *source); | |
78 | void jsonp_error_set(json_error_t *error, int line, int column, | |
79 | size_t position, enum json_error_code code, | |
80 | const char *msg, ...); | |
81 | void jsonp_error_vset(json_error_t *error, int line, int column, | |
82 | size_t position, enum json_error_code code, | |
83 | const char *msg, va_list ap); | |
84 | ||
85 | /* Locale independent string<->double conversions */ | |
86 | int jsonp_strtod(strbuffer_t *strbuffer, double *out); | |
87 | int jsonp_dtostr(char *buffer, size_t size, double value, int prec); | |
88 | ||
89 | /* Wrappers for custom memory functions */ | |
90 | void* jsonp_malloc(size_t size); | |
91 | void jsonp_free(void *ptr); | |
92 | char *jsonp_strndup(const char *str, size_t length); | |
93 | char *jsonp_strdup(const char *str); | |
94 | char *jsonp_strndup(const char *str, size_t len); | |
95 | ||
96 | ||
97 | /* Windows compatibility */ | |
98 | #if defined(_WIN32) || defined(WIN32) | |
99 | # if defined(_MSC_VER) /* MS compiller */ | |
100 | # if (_MSC_VER < 1900) && !defined(snprintf) /* snprintf not defined yet & not introduced */ | |
101 | # define snprintf _snprintf | |
102 | # endif | |
103 | # if (_MSC_VER < 1500) && !defined(vsnprintf) /* vsnprintf not defined yet & not introduced */ | |
104 | # define vsnprintf(b,c,f,a) _vsnprintf(b,c,f,a) | |
105 | # endif | |
106 | # else /* Other Windows compiller, old definition */ | |
107 | # define snprintf _snprintf | |
108 | # define vsnprintf _vsnprintf | |
109 | # endif | |
110 | #endif | |
111 | ||
112 | #endif |