From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- tools/perf/pmu-events/jsmn.h | 68 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 tools/perf/pmu-events/jsmn.h (limited to 'tools/perf/pmu-events/jsmn.h') diff --git a/tools/perf/pmu-events/jsmn.h b/tools/perf/pmu-events/jsmn.h new file mode 100644 index 000000000..c7b0f6ea2 --- /dev/null +++ b/tools/perf/pmu-events/jsmn.h @@ -0,0 +1,68 @@ +/* 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_ */ -- cgit v1.2.3