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authorDaniel Baumann <daniel.baumann@progress-linux.org>2019-07-08 20:14:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2019-07-08 20:14:49 +0000
commit4bf37db76e7dda93e57a9730958c6d467a85c622 (patch)
treee9cdf1b63c1e77c6689994f297dd015b343e4920 /libnetdata/json/jsmn.h
parentReleasing debian version 1.15.0-1. (diff)
downloadnetdata-4bf37db76e7dda93e57a9730958c6d467a85c622.tar.xz
netdata-4bf37db76e7dda93e57a9730958c6d467a85c622.zip
Merging upstream version 1.16.0.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'libnetdata/json/jsmn.h')
-rw-r--r--libnetdata/json/jsmn.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/libnetdata/json/jsmn.h b/libnetdata/json/jsmn.h
new file mode 100644
index 000000000..beff586c6
--- /dev/null
+++ b/libnetdata/json/jsmn.h
@@ -0,0 +1,75 @@
+#ifndef __JSMN_H_
+#define __JSMN_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stddef.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,
+} 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;
+#ifdef JSMN_PARENT_LINKS
+ int parent;
+#endif
+} 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 */
+ unsigned 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);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __JSMN_H_ */ \ No newline at end of file