/**
* Commit offset to backing store.
* This might be an async operation.
*
* Locality: toppar handler thread
*/
rd_kafka_resp_err_t rd_kafka_offset_commit (rd_kafka_toppar_t *rktp) {
if (1) // FIXME
rd_kafka_dbg(rktp->rktp_rkt->rkt_rk, TOPIC, "OFFSET",
"%s [%"PRId32"]: commit: "
"stored offset %"PRId64" > committed offset %"PRId64"?",
rktp->rktp_rkt->rkt_topic->str,
rktp->rktp_partition,
rktp->rktp_stored_offset, rktp->rktp_committed_offset);
/* Already committed */
if (rktp->rktp_stored_offset <= rktp->rktp_committed_offset)
return RD_KAFKA_RESP_ERR_NO_ERROR;
/* Already committing (for async ops) */
if (rktp->rktp_stored_offset <= rktp->rktp_committing_offset)
return RD_KAFKA_RESP_ERR__PREV_IN_PROGRESS;
switch (rktp->rktp_rkt->rkt_conf.offset_store_method)
{
case RD_KAFKA_OFFSET_METHOD_FILE:
return rd_kafka_offset_file_commit(rktp);
case RD_KAFKA_OFFSET_METHOD_BROKER:
return rd_kafka_offset_broker_commit(rktp);
default:
/* UNREACHABLE */
return RD_KAFKA_RESP_ERR__INVALID_ARG;
}
}
/**
* Decommissions the use of an offset file for a toppar.
* The file content will not be touched and the file will not be removed.
*
* NOTE: toppar_lock(rktp) must be held.
*/
static void rd_kafka_offset_file_term (rd_kafka_toppar_t *rktp) {
if (rktp->rktp_rkt->rkt_conf.offset_store_sync_interval_ms > 0)
rd_kafka_timer_stop(rktp->rktp_rkt->rkt_rk,
&rktp->rktp_offset_sync_tmr, 1/*lock*/);
rd_kafka_timer_stop(rktp->rktp_rkt->rkt_rk,
&rktp->rktp_offset_commit_tmr, 1/*lock*/);
if (rktp->rktp_stored_offset > rktp->rktp_commited_offset)
rd_kafka_offset_file_commit(rktp, rktp->rktp_stored_offset);
rd_kafka_offset_file_close(rktp);
free(rktp->rktp_offset_path);
rktp->rktp_offset_path = NULL;
}
/**
* Offset file commit timer callback.
*/
static void rd_kafka_offset_file_commit_tmr_cb (rd_kafka_t *rk, void *arg) {
rd_kafka_toppar_t *rktp = arg;
rd_kafka_toppar_lock(rktp);
rd_kafka_dbg(rk, TOPIC, "OFFSET",
"%s [%"PRId32"]: periodic commit: "
"stored offset %"PRId64" > commited offset %"PRId64" ?",
rktp->rktp_rkt->rkt_topic->str,
rktp->rktp_partition,
rktp->rktp_stored_offset, rktp->rktp_commited_offset);
if (rktp->rktp_stored_offset > rktp->rktp_commited_offset)
rd_kafka_offset_file_commit(rktp, rktp->rktp_stored_offset);
rd_kafka_toppar_unlock(rktp);
}