1/*
2  Copyright (c) 2009 Dave Gamble
3
4  Permission is hereby granted, free of charge, to any person obtaining a copy
5  of this software and associated documentation files (the "Software"), to deal
6  in the Software without restriction, including without limitation the rights
7  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8  copies of the Software, and to permit persons to whom the Software is
9  furnished to do so, subject to the following conditions:
10
11  The above copyright notice and this permission notice shall be included in
12  all copies or substantial portions of the Software.
13
14  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
20  THE SOFTWARE.
21*/
22
23#ifndef cJSON__h
24#define cJSON__h
25#include <linux/slab.h>
26
27// cJSON Types:
28#define cJSON_False 0
29#define cJSON_True 1
30#define cJSON_NULL 2
31#define cJSON_Number 3
32#define cJSON_String 4
33#define cJSON_Array 5
34#define cJSON_Object 6
35
36// The cJSON structure:
37typedef struct cJSON {
38	struct cJSON *next,*prev;	// next/prev allow you to walk array/object chains. Alternatively, use GetArraySize/GetArrayItem/GetObjectItem
39	struct cJSON *child;		// An array or object item will have a child pointer pointing to a chain of the items in the array/object.
40
41	int type;					// The type of the item, as above.
42
43	char *valuestring;			// The item's string, if type==cJSON_String
44	int valueint;				// The item's number, if type==cJSON_Number
45	char *string;				// The item's name string, if this item is the child of, or is in the list of subitems of an object.
46} cJSON;
47
48typedef struct cJSON_Hooks {
49      void *(*malloc_fn)(size_t sz);
50      void *(*realloc_fn)(void *ptr, size_t sz);
51      void (*free_fn)(void *ptr);
52} cJSON_Hooks;
53
54// Supply malloc, realloc and free functions to cJSON
55extern void cJSON_InitHooks(cJSON_Hooks* hooks);
56
57
58// Supply a block of JSON, and this returns a cJSON object you can interrogate. Call cJSON_Delete when finished.
59extern cJSON *cJSON_Parse(const char *value);
60// Render a cJSON entity to text for transfer/storage. Free the char* when finished.
61extern char  *cJSON_Print(cJSON *item);
62// Delete a cJSON entity and all subentities.
63extern void   cJSON_Delete(cJSON *c);
64
65// Returns the number of items in an array (or object).
66extern int	  cJSON_GetArraySize(cJSON *array);
67// Retrieve item number "item" from array "array". Returns NULL if unsuccessful.
68extern cJSON *cJSON_GetArrayItem(cJSON *array,int item);
69// Get item "string" from object. Case insensitive.
70extern cJSON *cJSON_GetObjectItem(cJSON *object,const char *string);
71
72// These calls create a cJSON item of the appropriate type.
73extern cJSON *cJSON_CreateNull(void);
74extern cJSON *cJSON_CreateTrue(void);
75extern cJSON *cJSON_CreateFalse(void);
76extern cJSON *cJSON_CreateNumber(int num);
77extern cJSON *cJSON_CreateString(const char *string);
78extern cJSON *cJSON_CreateArray(void);
79extern cJSON *cJSON_CreateObject(void);
80extern void cJSON_Minify(char *json);
81// These utilities create an Array of count items.
82extern cJSON *cJSON_CreateIntArray(int *numbers,int count);
83
84// Append item to the specified array/object.
85extern void   cJSON_AddItemToArray(cJSON *array, cJSON *item);
86extern void	  cJSON_AddItemToObject(cJSON *object,const char *string,cJSON *item);
87
88#define cJSON_AddNullToObject(object,name)	cJSON_AddItemToObject(object, name, cJSON_CreateNull())
89#define cJSON_AddTrueToObject(object,name)	cJSON_AddItemToObject(object, name, cJSON_CreateTrue())
90#define cJSON_AddFalseToObject(object,name)		cJSON_AddItemToObject(object, name, cJSON_CreateFalse())
91#define cJSON_AddNumberToObject(object,name,n)	cJSON_AddItemToObject(object, name, cJSON_CreateNumber(n))
92#define cJSON_AddStringToObject(object,name,s)	cJSON_AddItemToObject(object, name, cJSON_CreateString(s))
93
94#endif
95