tranger2_write_topic_var()

The tranger2_write_topic_var() function updates the variable metadata of a specified topic in the TimeRanger database.

C

Prototype

int tranger2_write_topic_var(
    json_t  *tranger,
    const char  *topic_name,
    json_t  *jn_topic_var
);

Parameters

Key	Type	Description
tranger	json_t *	A pointer to the TimeRanger database instance.
topic_name	const char *	The name of the topic whose variable metadata is to be updated.
jn_topic_var	json_t *	A JSON object containing the new variable metadata for the topic. The ownership of this object is transferred to tranger2_write_topic_var().

---

Return Value

Returns 0 on success, or a negative value on failure.

Notes

This function modifies the variable metadata of a topic, which may include user-defined flags or other dynamic properties.

JS

Prototype

// Not applicable in JS

Python

Prototype

# Not applicable in Python

Examples

C

// TODO C examples

JS

// TODO JS examples

Python

# TODO Python examples