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Commit	Line	Data
	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) JANSSON_ATTRS(warn_unused_result);
	91	void jsonp_free(void *ptr);
	92	char jsonp_strndup(const char str, size_t length) JANSSON_ATTRS(warn_unused_result);
	93	char jsonp_strdup(const char str) JANSSON_ATTRS(warn_unused_result);
	94	char jsonp_strndup(const char str, size_t len) JANSSON_ATTRS(warn_unused_result);
	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