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/*
* librdkafka - Apache Kafka C library
*
* Copyright (c) 2012-2015, 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.
*/
#include "test.h"
/* Typical include path would be <librdkafka/rdkafka.h>, but this program
* is built from within the librdkafka source tree and thus differs. */
#include "rdkafka.h" /* for Kafka driver */
/**
* Verify that rd_kafka_(query|get)_watermark_offsets() works.
*/
int main_0031_get_offsets(int argc, char **argv) {
const char *topic = test_mk_topic_name(__FUNCTION__, 1);
const int msgcnt = test_quick ? 10 : 100;
rd_kafka_t *rk;
rd_kafka_topic_t *rkt;
int64_t qry_low = -1234, qry_high = -1235;
int64_t get_low = -1234, get_high = -1235;
rd_kafka_resp_err_t err;
test_timing_t t_qry, t_get;
uint64_t testid;
/* Produce messages */
testid = test_produce_msgs_easy(topic, 0, 0, msgcnt);
/* Get offsets */
rk = test_create_consumer(NULL, NULL, NULL, NULL);
TIMING_START(&t_qry, "query_watermark_offsets");
err = rd_kafka_query_watermark_offsets(
rk, topic, 0, &qry_low, &qry_high, tmout_multip(10 * 1000));
TIMING_STOP(&t_qry);
if (err)
TEST_FAIL("query_watermark_offsets failed: %s\n",
rd_kafka_err2str(err));
if (qry_low != 0 && qry_high != msgcnt)
TEST_FAIL(
"Expected low,high %d,%d, but got "
"%" PRId64 ",%" PRId64,
0, msgcnt, qry_low, qry_high);
TEST_SAY(
"query_watermark_offsets: "
"offsets %" PRId64 ", %" PRId64 "\n",
qry_low, qry_high);
/* Now start consuming to update the offset cache, then query it
* with the get_ API. */
rkt = test_create_topic_object(rk, topic, NULL);
test_consumer_start("get", rkt, 0, RD_KAFKA_OFFSET_BEGINNING);
test_consume_msgs("get", rkt, testid, 0, TEST_NO_SEEK, 0, msgcnt, 0);
/* After at least one message has been consumed the
* watermarks are cached. */
TIMING_START(&t_get, "get_watermark_offsets");
err = rd_kafka_get_watermark_offsets(rk, topic, 0, &get_low, &get_high);
TIMING_STOP(&t_get);
if (err)
TEST_FAIL("get_watermark_offsets failed: %s\n",
rd_kafka_err2str(err));
TEST_SAY(
"get_watermark_offsets: "
"offsets %" PRId64 ", %" PRId64 "\n",
get_low, get_high);
if (get_high != qry_high)
TEST_FAIL(
"query/get discrepancies: "
"low: %" PRId64 "/%" PRId64 ", high: %" PRId64 "/%" PRId64,
qry_low, get_low, qry_high, get_high);
if (get_low >= get_high)
TEST_FAIL(
"get_watermark_offsets: "
"low %" PRId64 " >= high %" PRId64,
get_low, get_high);
/* FIXME: We currently dont bother checking the get_low offset
* since it requires stats to be enabled. */
test_consumer_stop("get", rkt, 0);
rd_kafka_topic_destroy(rkt);
rd_kafka_destroy(rk);
return 0;
}
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