Function rcl_publisher_get_topic_name

• Defined in File publisher.h

Function Documentation

const char *rcl_publisher_get_topic_name(const rcl_publisher_t *publisher)

Get the topic name for the publisher.

This function returns the publisher’s internal topic name string. This function can fail, and therefore return NULL, if the:

• publisher is NULL

• publisher is invalid (never called init, called fini, or invalid node)

The returned string is only valid as long as the rcl_publisher_t is valid. The value of the string may change if the topic name changes, and therefore copying the string is recommended if this is a concern.

Attribute	Adherence
Allocates Memory	No
Thread-Safe	No
Uses Atomics	No
Lock-Free	Yes

Parameters:

publisher – [in] pointer to the publisher

Returns:

name string if successful, otherwise NULL