internal static extern void rd_kafka_conf_set_offset_commit_cb( IntPtr conf, Librdkafka.CommitDelegate commit_cb);
internal static extern ErrorCode rd_kafka_commit_queue( IntPtr rk, /* const rd_kafka_topic_partition_list_t * */ IntPtr offsets, /* rd_kafka_queue_t * */ IntPtr rkqu, /* offset_commit_cb * */ Librdkafka.CommitDelegate cb, /* void * */ IntPtr opaque);