[mirror_ubuntu-bionic-kernel.git] / tools / perf / pmu-events / jsmn.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __JSMN_H_
#define __JSMN_H_

/*
 * JSON type identifier. Basic types are:
 *	o Object
 *	o Array
 *	o String
 *	o Other primitive: number, boolean (true/false) or null
 */
typedef enum {
	JSMN_PRIMITIVE = 0,
	JSMN_OBJECT = 1,
	JSMN_ARRAY = 2,
	JSMN_STRING = 3
} jsmntype_t;

typedef enum {
	/* Not enough tokens were provided */
	JSMN_ERROR_NOMEM = -1,
	/* Invalid character inside JSON string */
	JSMN_ERROR_INVAL = -2,
	/* The string is not a full JSON packet, more bytes expected */
	JSMN_ERROR_PART = -3,
	/* Everything was fine */
	JSMN_SUCCESS = 0
} jsmnerr_t;

/*
 * JSON token description.
 * @param		type	type (object, array, string etc.)
 * @param		start	start position in JSON data string
 * @param		end		end position in JSON data string
 */
typedef struct {
	jsmntype_t type;
	int start;
	int end;
	int size;
} jsmntok_t;

/*
 * JSON parser. Contains an array of token blocks available. Also stores
 * the string being parsed now and current position in that string
 */
typedef struct {
	unsigned int pos; /* offset in the JSON string */
	int toknext; /* next token to allocate */
	int toksuper; /* superior token node, e.g parent object or array */
} jsmn_parser;

/*
 * Create JSON parser over an array of tokens
 */
void jsmn_init(jsmn_parser *parser);

/*
 * Run JSON parser. It parses a JSON data string into and array of tokens,
 * each describing a single JSON object.
 */
jsmnerr_t jsmn_parse(jsmn_parser *parser, const char *js,
		     size_t len,
		     jsmntok_t *tokens, unsigned int num_tokens);

const char *jsmn_strerror(jsmnerr_t err);

#endif /* __JSMN_H_ */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
867a979a AK	2	#ifndef __JSMN_H_
	3	#define __JSMN_H_
	4
	5	/*
	6	* JSON type identifier. Basic types are:
	7	* o Object
	8	* o Array
	9	* o String
	10	* o Other primitive: number, boolean (true/false) or null
	11	*/
	12	typedef enum {
	13	JSMN_PRIMITIVE = 0,
	14	JSMN_OBJECT = 1,
	15	JSMN_ARRAY = 2,
	16	JSMN_STRING = 3
	17	} jsmntype_t;
	18
	19	typedef enum {
	20	/* Not enough tokens were provided */
	21	JSMN_ERROR_NOMEM = -1,
	22	/* Invalid character inside JSON string */
	23	JSMN_ERROR_INVAL = -2,
	24	/* The string is not a full JSON packet, more bytes expected */
	25	JSMN_ERROR_PART = -3,
	26	/* Everything was fine */
	27	JSMN_SUCCESS = 0
	28	} jsmnerr_t;
	29
	30	/*
	31	* JSON token description.
	32	* @param type type (object, array, string etc.)
	33	* @param start start position in JSON data string
	34	* @param end end position in JSON data string
	35	*/
	36	typedef struct {
	37	jsmntype_t type;
	38	int start;
	39	int end;
	40	int size;
	41	} jsmntok_t;
	42
	43	/*
	44	* JSON parser. Contains an array of token blocks available. Also stores
	45	* the string being parsed now and current position in that string
	46	*/
	47	typedef struct {
	48	unsigned int pos; /* offset in the JSON string */
	49	int toknext; /* next token to allocate */
	50	int toksuper; /* superior token node, e.g parent object or array */
	51	} jsmn_parser;
	52
	53	/*
	54	* Create JSON parser over an array of tokens
	55	*/
	56	void jsmn_init(jsmn_parser *parser);
	57
	58	/*
	59	* Run JSON parser. It parses a JSON data string into and array of tokens,
	60	* each describing a single JSON object.
	61	*/
	62	jsmnerr_t jsmn_parse(jsmn_parser parser, const char js,
	63	size_t len,
	64	jsmntok_t *tokens, unsigned int num_tokens);
	65
66	const char *jsmn_strerror(jsmnerr_t err);
67
68	#endif /* __JSMN_H_ */