static void get_assignment (rd_kafka_t *rk_c) {
while (!rebalanced) {
rd_kafka_message_t *rkmsg;
rkmsg = rd_kafka_consumer_poll(rk_c, 500);
if (rkmsg)
rd_kafka_message_destroy(rkmsg);
}
}
int test_consumer_poll (const char *what, rd_kafka_t *rk, uint64_t testid,
int exp_eof_cnt, int exp_msg_base, int exp_cnt) {
int eof_cnt = 0;
int cnt = 0;
test_timing_t t_cons;
TEST_SAY("%s: consume %d messages\n", what, exp_cnt);
TIMING_START(&t_cons, "CONSUME");
while ((exp_eof_cnt == -1 || eof_cnt < exp_eof_cnt) &&
(cnt < exp_cnt)) {
rd_kafka_message_t *rkmessage;
rkmessage = rd_kafka_consumer_poll(rk, 10*1000);
if (!rkmessage) /* Shouldn't take this long to get a msg */
TEST_FAIL("%s: consumer_poll() timeout\n", what);
if (rkmessage->err == RD_KAFKA_RESP_ERR__PARTITION_EOF) {
TEST_SAY("%s [%"PRId32"] reached EOF at "
"offset %"PRId64"\n",
rd_kafka_topic_name(rkmessage->rkt),
rkmessage->partition,
rkmessage->offset);
eof_cnt++;
} else if (rkmessage->err) {
TEST_SAY("%s [%"PRId32"] error (offset %"PRId64"): %s",
rkmessage->rkt ?
rd_kafka_topic_name(rkmessage->rkt) :
"(no-topic)",
rkmessage->partition,
rkmessage->offset,
rd_kafka_message_errstr(rkmessage));
} else {
if (test_level > 2)
TEST_SAY("%s [%"PRId32"] "
"message at offset %"PRId64"\n",
rd_kafka_topic_name(rkmessage->rkt),
rkmessage->partition,
rkmessage->offset);
test_verify_rkmessage(rkmessage, testid, -1, -1);
cnt++;
}
rd_kafka_message_destroy(rkmessage);
}
TIMING_STOP(&t_cons);
TEST_SAY("%s: consumed %d/%d messages (%d/%d EOFs)\n",
what, cnt, exp_cnt, eof_cnt, exp_eof_cnt);
return cnt;
}
RdKafka::Message *RdKafka::KafkaConsumerImpl::consume (int timeout_ms) {
rd_kafka_message_t *rkmessage;
rkmessage = rd_kafka_consumer_poll(this->rk_, timeout_ms);
if (!rkmessage)
return new RdKafka::MessageImpl(NULL, RdKafka::ERR__TIMED_OUT);
return new RdKafka::MessageImpl(rkmessage);
}
int test_consumer_poll (const char *what, rd_kafka_t *rk, uint64_t testid,
int exp_eof_cnt, int exp_msg_base, int exp_cnt) {
int eof_cnt = 0;
int cnt = 0;
while (eof_cnt < exp_eof_cnt) {
rd_kafka_message_t *rkmessage;
rkmessage = rd_kafka_consumer_poll(rk, 10*1000);
if (!rkmessage) /* Shouldn't take this long to get a msg */
TEST_FAIL("%s: consumer_poll() timeout\n", what);
if (rkmessage->err == RD_KAFKA_RESP_ERR__PARTITION_EOF) {
TEST_SAY("%s [%"PRId32"] reached EOF at "
"offset %"PRId64"\n",
rd_kafka_topic_name(rkmessage->rkt),
rkmessage->partition,
rkmessage->offset);
eof_cnt++;
} else if (rkmessage->err) {
TEST_SAY("%s [%"PRId32"] error (offset %"PRId64"): %s",
rkmessage->rkt ?
rd_kafka_topic_name(rkmessage->rkt) :
"(no-topic)",
rkmessage->partition,
rkmessage->offset,
rd_kafka_message_errstr(rkmessage));
} else {
if (test_level > 2)
TEST_SAY("%s [%"PRId32"] "
"message at offset %"PRId64"\n",
rd_kafka_topic_name(rkmessage->rkt),
rkmessage->partition,
rkmessage->offset);
cnt++;
}
rd_kafka_message_destroy(rkmessage);
}
return cnt;
}
static PyObject *Consumer_poll (Handle *self, PyObject *args,
PyObject *kwargs) {
double tmout = -1.0f;
static char *kws[] = { "timeout", NULL };
rd_kafka_message_t *rkm;
PyObject *msgobj;
CallState cs;
if (!self->rk) {
PyErr_SetString(PyExc_RuntimeError,
"Consumer closed");
return NULL;
}
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|d", kws, &tmout))
return NULL;
CallState_begin(self, &cs);
rkm = rd_kafka_consumer_poll(self->rk, tmout >= 0 ?
(int)(tmout * 1000.0f) : -1);
if (!CallState_end(self, &cs)) {
if (rkm)
rd_kafka_message_destroy(rkm);
return NULL;
}
if (!rkm)
Py_RETURN_NONE;
msgobj = Message_new0(self, rkm);
#ifdef RD_KAFKA_V_HEADERS
// Have to detach headers outside Message_new0 because it declares the
// rk message as a const
rd_kafka_message_detach_headers(rkm, &((Message *)msgobj)->c_headers);
#endif
rd_kafka_message_destroy(rkm);
return msgobj;
}
static void consume_all (rd_kafka_t **rk_c, int rk_cnt, int exp_msg_cnt,
int max_time/*ms*/) {
int64_t ts_start = test_clock();
int i;
max_time *= 1000;
while (ts_start + max_time > test_clock()) {
for (i = 0 ; i < rk_cnt ; i++) {
rd_kafka_message_t *rkmsg;
if (!rk_c[i])
continue;
rkmsg = rd_kafka_consumer_poll(rk_c[i], 500);
if (!rkmsg)
continue;
else if (rkmsg->err)
TEST_SAY("Message error "
"(at offset %"PRId64" after "
"%d/%d messages and %dms): %s\n",
rkmsg->offset,
consumed_msg_cnt, exp_msg_cnt,
(int)(test_clock() - ts_start)/1000,
rd_kafka_message_errstr(rkmsg));
else
consumed_msg_cnt++;
rd_kafka_message_destroy(rkmsg);
if (consumed_msg_cnt >= exp_msg_cnt) {
static int once = 0;
if (!once++)
TEST_SAY("All messages consumed\n");
return;
}
}
}
}
static void do_consume (const char *topic, int msgcnt) {
rd_kafka_t *rk;
rd_kafka_topic_partition_list_t *parts;
rk = test_create_consumer(topic, NULL, NULL, NULL);
parts = rd_kafka_topic_partition_list_new(1);
rd_kafka_topic_partition_list_add(parts, topic, 0)->offset =
RD_KAFKA_OFFSET_BEGINNING;
test_consumer_assign("assign", rk, parts);
rd_kafka_topic_partition_list_destroy(parts);
exp_msgid = 0;
while (exp_msgid < msgcnt) {
rd_kafka_message_t *rkm;
rkm = rd_kafka_consumer_poll(rk, 1000);
if (!rkm)
continue;
if (rkm->err)
TEST_FAIL("consume error while expecting msgid %d/%d: "
"%s",
exp_msgid, msgcnt,
rd_kafka_message_errstr(rkm));
handle_consumed_msg(rkm);
rd_kafka_message_destroy(rkm);
}
test_consumer_close(rk);
rd_kafka_destroy(rk);
}
static void do_consume (struct _consumer *cons, int timeout_s) {
rd_kafka_message_t *rkm;
rkm = rd_kafka_consumer_poll(cons->rk, 100+(timeout_s*1000));
if (!rkm)
return;
TEST_ASSERT(!rkm->err,
"%s consumer error: %s (last poll was %dms ago)",
rd_kafka_name(cons->rk),
rd_kafka_message_errstr(rkm),
(int)((test_clock() - cons->last)/1000));
rd_kafka_message_destroy(rkm);
cons->cnt++;
cons->last = test_clock();
if (timeout_s > 0) {
TEST_SAY("%s: simulate processing by sleeping for %ds\n",
rd_kafka_name(cons->rk), timeout_s);
rd_sleep(timeout_s);
}
}
int main_0089_max_poll_interval (int argc, char **argv) {
const char *topic = test_mk_topic_name("0089_max_poll_interval", 1);
uint64_t testid;
const int msgcnt = 10;
rd_kafka_t *c[2];
rd_kafka_conf_t *conf;
int64_t ts_next[2] = { 0, 0 };
int64_t ts_exp_msg[2] = { 0, 0 };
int cmsgcnt = 0;
int i;
int bad = -1;
testid = test_id_generate();
test_create_topic(topic, 1, 1);
test_produce_msgs_easy(topic, testid, -1, msgcnt);
test_conf_init(&conf, NULL, 60);
test_conf_set(conf, "session.timeout.ms", "6000");
test_conf_set(conf, "max.poll.interval.ms", "10000" /*10s*/);
test_conf_set(conf, "auto.offset.reset", "earliest");
c[0] = test_create_consumer(topic, NULL, rd_kafka_conf_dup(conf), NULL);
c[1] = test_create_consumer(topic, NULL, conf, NULL);
test_consumer_subscribe(c[0], topic);
test_consumer_subscribe(c[1], topic);
while (1) {
for (i = 0 ; i < 2 ; i++) {
int64_t now;
rd_kafka_message_t *rkm;
/* Consumer is "processing" */
if (ts_next[i] > test_clock())
continue;
rkm = rd_kafka_consumer_poll(c[i], 100);
if (!rkm)
continue;
if (rkm->err) {
TEST_WARN("Consumer %d error: %s: "
"ignoring\n", i,
rd_kafka_message_errstr(rkm));
continue;
}
now = test_clock();
cmsgcnt++;
TEST_SAY("Consumer %d received message (#%d) "
"at offset %"PRId64"\n",
i, cmsgcnt, rkm->offset);
if (ts_exp_msg[i]) {
/* This consumer is expecting a message
* after a certain time, namely after the
* rebalance following max.poll.. being
* exceeded in the other consumer */
TEST_ASSERT(now > ts_exp_msg[i],
"Consumer %d: did not expect "
"message for at least %dms",
i,
(int)((ts_exp_msg[i] - now)/1000));
TEST_ASSERT(now < ts_exp_msg[i] + 10000*1000,
"Consumer %d: expected message "
"within 10s, not after %dms",
i,
(int)((now - ts_exp_msg[i])/1000));
TEST_SAY("Consumer %d: received message "
"at offset %"PRId64
" after rebalance\n",
i, rkm->offset);
rd_kafka_message_destroy(rkm);
goto done;
} else if (cmsgcnt == 1) {
/* Process this message for 20s */
ts_next[i] = now + (20000 * 1000);
/* Exp message on other consumer after
* max.poll.interval.ms */
ts_exp_msg[i^1] = now + (10000 * 1000);
/* This is the bad consumer */
bad = i;
TEST_SAY("Consumer %d processing message at "
"offset %"PRId64"\n",
i, rkm->offset);
rd_kafka_message_destroy(rkm);
} else {
rd_kafka_message_destroy(rkm);
TEST_FAIL("Consumer %d did not expect "
"a message", i);
}
}
}
done:
TEST_ASSERT(bad != -1, "Bad consumer not set");
/* Wait for error ERR__MAX_POLL_EXCEEDED on the bad consumer. */
while (1) {
rd_kafka_message_t *rkm;
rkm = rd_kafka_consumer_poll(c[bad], 1000);
TEST_ASSERT(rkm, "Expected consumer result within 1s");
TEST_ASSERT(rkm->err, "Did not expect message on bad consumer");
TEST_SAY("Consumer error: %s: %s\n",
rd_kafka_err2name(rkm->err),
rd_kafka_message_errstr(rkm));
if (rkm->err == RD_KAFKA_RESP_ERR__MAX_POLL_EXCEEDED) {
rd_kafka_message_destroy(rkm);
break;
}
rd_kafka_message_destroy(rkm);
}
for (i = 0 ; i < 2 ; i++)
rd_kafka_destroy_flags(c[i],
RD_KAFKA_DESTROY_F_NO_CONSUMER_CLOSE);
return 0;
}
static void do_offset_test (const char *what, int auto_commit, int auto_store,
int async) {
test_timing_t t_all;
char groupid[64];
rd_kafka_t *rk;
rd_kafka_conf_t *conf;
rd_kafka_topic_conf_t *tconf;
int cnt = 0;
const int extra_cnt = 5;
rd_kafka_resp_err_t err;
rd_kafka_topic_partition_list_t *parts;
rd_kafka_topic_partition_t *rktpar;
int64_t next_offset = -1;
test_conf_init(&conf, &tconf, 20);
test_conf_set(conf, "enable.auto.commit", auto_commit ? "true":"false");
test_conf_set(conf, "enable.auto.offset.store", auto_store ?"true":"false");
test_conf_set(conf, "auto.commit.interval.ms", "500");
rd_kafka_conf_set_offset_commit_cb(conf, offset_commit_cb);
test_topic_conf_set(tconf, "auto.offset.reset", "smallest");
test_str_id_generate(groupid, sizeof(groupid));
test_conf_set(conf, "group.id", groupid);
rd_kafka_conf_set_default_topic_conf(conf, tconf);
TEST_SAY(_C_MAG "[ do_offset_test: %s with group.id %s ]\n",
what, groupid);
TIMING_START(&t_all, what);
expected_offset = 0;
committed_offset = -1;
/* MO:
* - Create consumer.
* - Start consuming from beginning
* - Perform store & commits according to settings
* - Stop storing&committing when half of the messages are consumed,
* - but consume 5 more to check against.
* - Query position.
* - Destroy consumer.
* - Create new consumer with same group.id using stored offsets
* - Should consume the expected message.
*/
/* Create kafka instance */
rk = test_create_handle(RD_KAFKA_CONSUMER, rd_kafka_conf_dup(conf));
rd_kafka_poll_set_consumer(rk);
test_consumer_subscribe(rk, topic);
while (cnt - extra_cnt < msgcnt / 2) {
rd_kafka_message_t *rkm;
rkm = rd_kafka_consumer_poll(rk, 10*1000);
if (!rkm)
continue;
if (rkm->err == RD_KAFKA_RESP_ERR__TIMED_OUT)
TEST_FAIL("%s: Timed out waiting for message %d", what,cnt);
else if (rkm->err == RD_KAFKA_RESP_ERR__PARTITION_EOF) {
rd_kafka_message_destroy(rkm);
continue;
} else if (rkm->err)
TEST_FAIL("%s: Consumer error: %s",
what, rd_kafka_message_errstr(rkm));
/* Offset of next message. */
next_offset = rkm->offset + 1;
if (cnt < msgcnt / 2) {
if (!auto_store) {
err = rd_kafka_offset_store(rkm->rkt,rkm->partition,
rkm->offset);
if (err)
TEST_FAIL("%s: offset_store failed: %s\n",
what, rd_kafka_err2str(err));
}
expected_offset = rkm->offset+1;
if (!auto_commit) {
test_timing_t t_commit;
TIMING_START(&t_commit,
async?"commit.async":"commit.sync");
err = rd_kafka_commit_message(rk, rkm, async);
TIMING_STOP(&t_commit);
if (err)
TEST_FAIL("%s: commit failed: %s\n",
what, rd_kafka_err2str(err));
}
} else if (auto_store && auto_commit)
expected_offset = rkm->offset+1;
rd_kafka_message_destroy(rkm);
cnt++;
}
TEST_SAY("%s: done consuming after %d messages, at offset %"PRId64"\n",
what, cnt, expected_offset);
if ((err = rd_kafka_assignment(rk, &parts)))
TEST_FAIL("%s: failed to get assignment(): %s\n",
what, rd_kafka_err2str(err));
/* Verify position */
if ((err = rd_kafka_position(rk, parts)))
TEST_FAIL("%s: failed to get position(): %s\n",
what, rd_kafka_err2str(err));
if (!(rktpar = rd_kafka_topic_partition_list_find(parts,
topic, partition)))
TEST_FAIL("%s: position(): topic lost\n", what);
if (rktpar->offset != next_offset)
TEST_FAIL("%s: Expected position() offset %"PRId64", got %"PRId64,
what, next_offset, rktpar->offset);
TEST_SAY("%s: Position is at %"PRId64", good!\n",
what, rktpar->offset);
/* Pause messages while waiting so we can serve callbacks
* without having more messages received. */
if ((err = rd_kafka_pause_partitions(rk, parts)))
TEST_FAIL("%s: failed to pause partitions: %s\n",
what, rd_kafka_err2str(err));
rd_kafka_topic_partition_list_destroy(parts);
/* Fire off any enqueued offset_commit_cb */
test_consumer_poll_no_msgs(what, rk, testid, 0);
TEST_SAY("%s: committed_offset %"PRId64", expected_offset %"PRId64"\n",
what, committed_offset, expected_offset);
if (!auto_commit && !async) {
/* Sync commits should be up to date at this point. */
if (committed_offset != expected_offset)
TEST_FAIL("%s: Sync commit: committed offset %"PRId64
" should be same as expected offset "
"%"PRId64,
what, committed_offset, expected_offset);
} else {
/* Wait for offset commits to catch up */
while (committed_offset < expected_offset) {
TEST_SAYL(3, "%s: Wait for committed offset %"PRId64
" to reach expected offset %"PRId64"\n",
what, committed_offset, expected_offset);
test_consumer_poll_no_msgs(what, rk, testid, 1000);
}
}
TEST_SAY("%s: phase 1 complete, %d messages consumed, "
"next expected offset is %"PRId64"\n",
what, cnt, expected_offset);
/* Issue #827: cause committed() to return prematurely by specifying
* low timeout. The bug (use after free) will only
* be catched by valgrind. */
do {
parts = rd_kafka_topic_partition_list_new(1);
rd_kafka_topic_partition_list_add(parts, topic, partition);
err = rd_kafka_committed(rk, parts, 1);
rd_kafka_topic_partition_list_destroy(parts);
TEST_SAY("Issue #827: committed() returned %s\n",
rd_kafka_err2str(err));
} while (err != RD_KAFKA_RESP_ERR__TIMED_OUT);
/* Query position */
parts = rd_kafka_topic_partition_list_new(1);
rd_kafka_topic_partition_list_add(parts, topic, partition);
err = rd_kafka_committed(rk, parts, tmout_multip(5*1000));
if (err)
TEST_FAIL("%s: committed() failed: %s", what, rd_kafka_err2str(err));
if (!(rktpar = rd_kafka_topic_partition_list_find(parts,
topic, partition)))
TEST_FAIL("%s: committed(): topic lost\n", what);
if (rktpar->offset != expected_offset)
TEST_FAIL("%s: Expected committed() offset %"PRId64", got %"PRId64,
what, expected_offset, rktpar->offset);
TEST_SAY("%s: Committed offset is at %"PRId64", good!\n",
what, rktpar->offset);
rd_kafka_topic_partition_list_destroy(parts);
test_consumer_close(rk);
rd_kafka_destroy(rk);
/* Fire up a new consumer and continue from where we left off. */
TEST_SAY("%s: phase 2: starting new consumer to resume consumption\n",what);
rk = test_create_handle(RD_KAFKA_CONSUMER, conf);
rd_kafka_poll_set_consumer(rk);
test_consumer_subscribe(rk, topic);
while (cnt < msgcnt) {
rd_kafka_message_t *rkm;
rkm = rd_kafka_consumer_poll(rk, 10*1000);
if (!rkm)
continue;
if (rkm->err == RD_KAFKA_RESP_ERR__TIMED_OUT)
TEST_FAIL("%s: Timed out waiting for message %d", what,cnt);
else if (rkm->err == RD_KAFKA_RESP_ERR__PARTITION_EOF) {
rd_kafka_message_destroy(rkm);
continue;
} else if (rkm->err)
TEST_FAIL("%s: Consumer error: %s",
what, rd_kafka_message_errstr(rkm));
if (rkm->offset != expected_offset)
TEST_FAIL("%s: Received message offset %"PRId64
", expected %"PRId64" at msgcnt %d/%d\n",
what, rkm->offset, expected_offset,
cnt, msgcnt);
rd_kafka_message_destroy(rkm);
expected_offset++;
cnt++;
}
TEST_SAY("%s: phase 2: complete\n", what);
test_consumer_close(rk);
rd_kafka_destroy(rk);
TIMING_STOP(&t_all);
}
int main (int argc, char **argv) {
char mode = 'C';
char *brokers = "localhost:9092";
int opt;
rd_kafka_conf_t *conf;
rd_kafka_topic_conf_t *topic_conf;
char errstr[512];
const char *debug = NULL;
int do_conf_dump = 0;
char tmp[16];
rd_kafka_resp_err_t err;
char *group = NULL;
rd_kafka_topic_partition_list_t *topics;
int i;
quiet = !isatty(STDIN_FILENO);
/* Kafka configuration */
conf = rd_kafka_conf_new();
/* Set logger */
rd_kafka_conf_set_log_cb(conf, logger);
/* Quick termination */
snprintf(tmp, sizeof(tmp), "%i", SIGIO);
rd_kafka_conf_set(conf, "internal.termination.signal", tmp, NULL, 0);
/* Topic configuration */
topic_conf = rd_kafka_topic_conf_new();
while ((opt = getopt(argc, argv, "g:b:qd:eX:As:DO")) != -1) {
switch (opt) {
case 'b':
brokers = optarg;
break;
case 'g':
group = optarg;
break;
case 'e':
exit_eof = 1;
break;
case 'd':
debug = optarg;
break;
case 'q':
quiet = 1;
break;
case 'A':
output = OUTPUT_RAW;
break;
case 'X':
{
char *name, *val;
rd_kafka_conf_res_t res;
if (!strcmp(optarg, "list") ||
!strcmp(optarg, "help")) {
rd_kafka_conf_properties_show(stdout);
exit(0);
}
if (!strcmp(optarg, "dump")) {
do_conf_dump = 1;
continue;
}
name = optarg;
if (!(val = strchr(name, '='))) {
fprintf(stderr, "%% Expected "
"-X property=value, not %s\n", name);
exit(1);
}
*val = '\0';
val++;
res = RD_KAFKA_CONF_UNKNOWN;
/* Try "topic." prefixed properties on topic
* conf first, and then fall through to global if
* it didnt match a topic configuration property. */
if (!strncmp(name, "topic.", strlen("topic.")))
res = rd_kafka_topic_conf_set(topic_conf,
name+
strlen("topic."),
val,
errstr,
sizeof(errstr));
if (res == RD_KAFKA_CONF_UNKNOWN)
res = rd_kafka_conf_set(conf, name, val,
errstr, sizeof(errstr));
if (res != RD_KAFKA_CONF_OK) {
fprintf(stderr, "%% %s\n", errstr);
exit(1);
}
}
break;
case 'D':
case 'O':
mode = opt;
break;
default:
goto usage;
}
}
if (do_conf_dump) {
const char **arr;
size_t cnt;
int pass;
for (pass = 0 ; pass < 2 ; pass++) {
if (pass == 0) {
arr = rd_kafka_conf_dump(conf, &cnt);
printf("# Global config\n");
} else {
printf("# Topic config\n");
arr = rd_kafka_topic_conf_dump(topic_conf,
&cnt);
}
for (i = 0 ; i < (int)cnt ; i += 2)
printf("%s = %s\n",
arr[i], arr[i+1]);
printf("\n");
rd_kafka_conf_dump_free(arr, cnt);
}
exit(0);
}
if (strchr("OC", mode) && optind == argc) {
usage:
fprintf(stderr,
"Usage: %s [options] <topic[:part]> <topic[:part]>..\n"
"\n"
"librdkafka version %s (0x%08x)\n"
"\n"
" Options:\n"
" -g <group> Consumer group (%s)\n"
" -b <brokers> Broker address (%s)\n"
" -e Exit consumer when last message\n"
" in partition has been received.\n"
" -D Describe group.\n"
" -O Get commmitted offset(s)\n"
" -d [facs..] Enable debugging contexts:\n"
" %s\n"
" -q Be quiet\n"
" -A Raw payload output (consumer)\n"
" -X <prop=name> Set arbitrary librdkafka "
"configuration property\n"
" Properties prefixed with \"topic.\" "
"will be set on topic object.\n"
" Use '-X list' to see the full list\n"
" of supported properties.\n"
"\n"
"\n",
argv[0],
rd_kafka_version_str(), rd_kafka_version(),
group, brokers,
RD_KAFKA_DEBUG_CONTEXTS);
exit(1);
}
signal(SIGINT, stop);
signal(SIGUSR1, sig_usr1);
if (debug &&
rd_kafka_conf_set(conf, "debug", debug, errstr, sizeof(errstr)) !=
RD_KAFKA_CONF_OK) {
fprintf(stderr, "%% Debug configuration failed: %s: %s\n",
errstr, debug);
exit(1);
}
/*
* Client/Consumer group
*/
if (strchr("CO", mode)) {
/* Consumer groups require a group id */
if (!group)
group = "rdkafka_consumer_example";
if (rd_kafka_conf_set(conf, "group.id", group,
errstr, sizeof(errstr)) !=
RD_KAFKA_CONF_OK) {
fprintf(stderr, "%% %s\n", errstr);
exit(1);
}
/* Consumer groups always use broker based offset storage */
if (rd_kafka_topic_conf_set(topic_conf, "offset.store.method",
"broker",
errstr, sizeof(errstr)) !=
RD_KAFKA_CONF_OK) {
fprintf(stderr, "%% %s\n", errstr);
exit(1);
}
/* Set default topic config for pattern-matched topics. */
rd_kafka_conf_set_default_topic_conf(conf, topic_conf);
/* Callback called on partition assignment changes */
rd_kafka_conf_set_rebalance_cb(conf, rebalance_cb);
}
/* Create Kafka handle */
if (!(rk = rd_kafka_new(RD_KAFKA_CONSUMER, conf,
errstr, sizeof(errstr)))) {
fprintf(stderr,
"%% Failed to create new consumer: %s\n",
errstr);
exit(1);
}
rd_kafka_set_log_level(rk, LOG_DEBUG);
/* Add brokers */
if (rd_kafka_brokers_add(rk, brokers) == 0) {
fprintf(stderr, "%% No valid brokers specified\n");
exit(1);
}
if (mode == 'D') {
int r;
/* Describe groups */
r = describe_groups(rk, group);
rd_kafka_destroy(rk);
exit(r == -1 ? 1 : 0);
}
/* Redirect rd_kafka_poll() to consumer_poll() */
rd_kafka_poll_set_consumer(rk);
topics = rd_kafka_topic_partition_list_new(argc - optind);
for (i = optind ; i < argc ; i++) {
/* Parse "topic[:part] */
char *topic = argv[i];
char *t;
int32_t partition = -1;
if ((t = strstr(topic, ":"))) {
*t = '\0';
partition = atoi(t+1);
}
rd_kafka_topic_partition_list_add(topics, topic, partition);
}
if (mode == 'O') {
/* Offset query */
err = rd_kafka_position(rk, topics, 5000);
if (err) {
fprintf(stderr, "%% Failed to fetch offsets: %s\n",
rd_kafka_err2str(err));
exit(1);
}
for (i = 0 ; i < topics->cnt ; i++) {
rd_kafka_topic_partition_t *p = &topics->elems[i];
printf("Topic \"%s\" partition %"PRId32,
p->topic, p->partition);
if (p->err)
printf(" error %s",
rd_kafka_err2str(p->err));
else {
printf(" offset %"PRId64"",
p->offset);
if (p->metadata_size)
printf(" (%d bytes of metadata)",
(int)p->metadata_size);
}
printf("\n");
}
goto done;
}
if ((err = rd_kafka_subscribe(rk, topics))) {
fprintf(stderr, "%% Failed to start consuming topics: %s\n",
rd_kafka_err2str(err));
exit(1);
}
while (run) {
rd_kafka_message_t *rkmessage;
rkmessage = rd_kafka_consumer_poll(rk, 1000);
if (rkmessage) {
msg_consume(rkmessage, NULL);
rd_kafka_message_destroy(rkmessage);
}
}
done:
err = rd_kafka_consumer_close(rk);
if (err)
fprintf(stderr, "%% Failed to close consumer: %s\n",
rd_kafka_err2str(err));
else
fprintf(stderr, "%% Consumer closed\n");
rd_kafka_topic_partition_list_destroy(topics);
/* Destroy handle */
rd_kafka_destroy(rk);
/* Let background threads clean up and terminate cleanly. */
run = 5;
while (run-- > 0 && rd_kafka_wait_destroyed(1000) == -1)
printf("Waiting for librdkafka to decommission\n");
if (run <= 0)
rd_kafka_dump(stdout, rk);
return 0;
}
int main_0006_symbols (int argc, char **argv) {
if (argc < 0 /* always false */) {
rd_kafka_version();
rd_kafka_version_str();
rd_kafka_get_debug_contexts();
rd_kafka_get_err_descs(NULL, NULL);
rd_kafka_err2str(RD_KAFKA_RESP_ERR_NO_ERROR);
rd_kafka_err2name(RD_KAFKA_RESP_ERR_NO_ERROR);
rd_kafka_errno2err(EINVAL);
rd_kafka_errno();
rd_kafka_last_error();
rd_kafka_conf_new();
rd_kafka_conf_destroy(NULL);
rd_kafka_conf_dup(NULL);
rd_kafka_conf_set(NULL, NULL, NULL, NULL, 0);
rd_kafka_conf_set_dr_cb(NULL, NULL);
rd_kafka_conf_set_dr_msg_cb(NULL, NULL);
rd_kafka_conf_set_error_cb(NULL, NULL);
rd_kafka_conf_set_stats_cb(NULL, NULL);
rd_kafka_conf_set_log_cb(NULL, NULL);
rd_kafka_conf_set_socket_cb(NULL, NULL);
rd_kafka_conf_set_rebalance_cb(NULL, NULL);
rd_kafka_conf_set_offset_commit_cb(NULL, NULL);
rd_kafka_conf_set_throttle_cb(NULL, NULL);
rd_kafka_conf_set_default_topic_conf(NULL, NULL);
rd_kafka_conf_get(NULL, NULL, NULL, NULL);
#ifndef _MSC_VER
rd_kafka_conf_set_open_cb(NULL, NULL);
#endif
rd_kafka_conf_set_opaque(NULL, NULL);
rd_kafka_opaque(NULL);
rd_kafka_conf_dump(NULL, NULL);
rd_kafka_topic_conf_dump(NULL, NULL);
rd_kafka_conf_dump_free(NULL, 0);
rd_kafka_conf_properties_show(NULL);
rd_kafka_topic_conf_new();
rd_kafka_topic_conf_dup(NULL);
rd_kafka_topic_conf_destroy(NULL);
rd_kafka_topic_conf_set(NULL, NULL, NULL, NULL, 0);
rd_kafka_topic_conf_set_opaque(NULL, NULL);
rd_kafka_topic_conf_get(NULL, NULL, NULL, NULL);
rd_kafka_topic_conf_set_partitioner_cb(NULL, NULL);
rd_kafka_topic_partition_available(NULL, 0);
rd_kafka_topic_opaque(NULL);
rd_kafka_msg_partitioner_random(NULL, NULL, 0, 0, NULL, NULL);
rd_kafka_msg_partitioner_consistent(NULL, NULL, 0, 0, NULL, NULL);
rd_kafka_msg_partitioner_consistent_random(NULL, NULL, 0, 0, NULL, NULL);
rd_kafka_new(0, NULL, NULL, 0);
rd_kafka_destroy(NULL);
rd_kafka_name(NULL);
rd_kafka_memberid(NULL);
rd_kafka_topic_new(NULL, NULL, NULL);
rd_kafka_topic_destroy(NULL);
rd_kafka_topic_name(NULL);
rd_kafka_message_destroy(NULL);
rd_kafka_message_errstr(NULL);
rd_kafka_message_timestamp(NULL, NULL);
rd_kafka_consume_start(NULL, 0, 0);
rd_kafka_consume_stop(NULL, 0);
rd_kafka_consume(NULL, 0, 0);
rd_kafka_consume_batch(NULL, 0, 0, NULL, 0);
rd_kafka_consume_callback(NULL, 0, 0, NULL, NULL);
rd_kafka_offset_store(NULL, 0, 0);
rd_kafka_produce(NULL, 0, 0, NULL, 0, NULL, 0, NULL);
rd_kafka_produce_batch(NULL, 0, 0, NULL, 0);
rd_kafka_poll(NULL, 0);
rd_kafka_brokers_add(NULL, NULL);
/* DEPRECATED: rd_kafka_set_logger(NULL, NULL); */
rd_kafka_set_log_level(NULL, 0);
rd_kafka_log_print(NULL, 0, NULL, NULL);
#ifndef _MSC_VER
rd_kafka_log_syslog(NULL, 0, NULL, NULL);
#endif
rd_kafka_outq_len(NULL);
rd_kafka_dump(NULL, NULL);
rd_kafka_thread_cnt();
rd_kafka_wait_destroyed(0);
rd_kafka_metadata(NULL, 0, NULL, NULL, 0);
rd_kafka_metadata_destroy(NULL);
rd_kafka_queue_destroy(NULL);
rd_kafka_consume_start_queue(NULL, 0, 0, NULL);
rd_kafka_consume_queue(NULL, 0);
rd_kafka_consume_batch_queue(NULL, 0, NULL, 0);
rd_kafka_consume_callback_queue(NULL, 0, NULL, NULL);
rd_kafka_seek(NULL, 0, 0, 0);
rd_kafka_yield(NULL);
rd_kafka_mem_free(NULL, NULL);
rd_kafka_list_groups(NULL, NULL, NULL, 0);
rd_kafka_group_list_destroy(NULL);
/* KafkaConsumer API */
rd_kafka_subscribe(NULL, NULL);
rd_kafka_unsubscribe(NULL);
rd_kafka_subscription(NULL, NULL);
rd_kafka_consumer_poll(NULL, 0);
rd_kafka_consumer_close(NULL);
rd_kafka_assign(NULL, NULL);
rd_kafka_assignment(NULL, NULL);
rd_kafka_commit(NULL, NULL, 0);
rd_kafka_commit_message(NULL, NULL, 0);
rd_kafka_committed(NULL, NULL, 0);
rd_kafka_position(NULL, NULL);
/* TopicPartition */
rd_kafka_topic_partition_list_new(0);
rd_kafka_topic_partition_list_destroy(NULL);
rd_kafka_topic_partition_list_add(NULL, NULL, 0);
rd_kafka_topic_partition_list_add_range(NULL, NULL, 0, 0);
rd_kafka_topic_partition_list_del(NULL, NULL, 0);
rd_kafka_topic_partition_list_del_by_idx(NULL, 0);
rd_kafka_topic_partition_list_copy(NULL);
rd_kafka_topic_partition_list_set_offset(NULL, NULL, 0, 0);
rd_kafka_topic_partition_list_find(NULL, NULL, 0);
rd_kafka_query_watermark_offsets(NULL, NULL, 0, NULL, NULL, 0);
rd_kafka_get_watermark_offsets(NULL, NULL, 0, NULL, NULL);
}
return 0;
}