hm-kafka/kafka-client/kafka-c/json-producer/src/kafka.c
#include "../include/kafka.h"
void delivery_report(rd_kafka_t *kafka_handle __attribute__((unused)),
const rd_kafka_message_t *rkmessage, void *opaque __attribute__((unused))) {
if (rkmessage->err) {
g_error("Message delivery failed: %s", rd_kafka_err2str(rkmessage->err));
}
}