static int32_t kafka_partition(const rd_kafka_topic_t *rkt,
const void *keydata, size_t keylen,
int32_t partition_cnt, void *p, void *m)
{
static int32_t kafka_partition(const rd_kafka_topic_t *rkt,
const void *keydata, size_t keylen,
int32_t partition_cnt, void *p, void *m)
{