@brief \b Consumer: Set offset commit callback for use with consumer groups.
The results of automatic or manual offset commits will be scheduled
for this callback and is served by rd_kafka_consumer_poll().
If no partitions had valid offsets to commit this callback will be called
with \p err == RD_KAFKA_RESP_ERR__NO_OFFSET which is not to be considered
an error.
The \p offsets list contains per-partition information:
- \c offset: committed offset (attempted)
- \c err: commit error
@brief \b Consumer: Set offset commit callback for use with consumer groups.
The results of automatic or manual offset commits will be scheduled for this callback and is served by rd_kafka_consumer_poll().
If no partitions had valid offsets to commit this callback will be called with \p err == RD_KAFKA_RESP_ERR__NO_OFFSET which is not to be considered an error.
The \p offsets list contains per-partition information: - \c offset: committed offset (attempted) - \c err: commit error