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rdkafka_assignment.h
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/*
* librdkafka - The Apache Kafka C/C++ library
*
* Copyright (c) 2020-2022, Magnus Edenhill
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _RDKAFKA_ASSIGNMENT_H_
#define _RDKAFKA_ASSIGNMENT_H_
typedef struct rd_kafka_assignment_s {
/** All currently assigned partitions. */
rd_kafka_topic_partition_list_t *all;
/** Partitions in need of action (subset of .all) */
rd_kafka_topic_partition_list_t *pending;
/** Partitions that are being queried for committed
* offsets (subset of .all) */
rd_kafka_topic_partition_list_t *queried;
/** Partitions that have been removed from the assignment
* but not yet decommissioned. (not included in .all) */
rd_kafka_topic_partition_list_t *removed;
/** Number of started partitions */
int started_cnt;
/** Number of partitions being stopped. */
int wait_stop_cnt;
/** Assignment version: any change to the assignment will bump this
* version by one. This is used to know if a protocol response is
* outdated or not.
* @locks_required none
* @locality rdkafka main thread */
int64_t version;
} rd_kafka_assignment_t;
int rd_kafka_assignment_clear(rd_kafka_t *rk);
rd_kafka_error_t *
rd_kafka_assignment_add(rd_kafka_t *rk,
rd_kafka_topic_partition_list_t *partitions);
rd_kafka_error_t *
rd_kafka_assignment_subtract(rd_kafka_t *rk,
rd_kafka_topic_partition_list_t *partitions);
void rd_kafka_assignment_partition_stopped(rd_kafka_t *rk,
rd_kafka_toppar_t *rktp);
void rd_kafka_assignment_pause(rd_kafka_t *rk, const char *reason);
void rd_kafka_assignment_resume(rd_kafka_t *rk, const char *reason);
void rd_kafka_assignment_serve(rd_kafka_t *rk);
rd_bool_t rd_kafka_assignment_in_progress(rd_kafka_t *rk);
void rd_kafka_assignment_destroy(rd_kafka_t *rk);
void rd_kafka_assignment_init(rd_kafka_t *rk);
#endif /* _RDKAFKA_ASSIGNMENT_H_ */