static
void offset_queue_consume(rd_kafka_message_t *message, void *opaque)
{
struct consume_cb_params *params = opaque;
if (params->eop == 0)
return;
if (message->err)
{
params->error_count += 1;
if (params->auto_commit == 0)
rd_kafka_offset_store(
message->rkt,
message->partition,
message->offset == 0 ? 0 : message->offset -1
);
if (message->err == RD_KAFKA_RESP_ERR__PARTITION_EOF)
{
if (params->partition_offset[message->partition] == -2)
{//no previous message read from this partition
//set offset value to last possible value (-1 or last existing)
//reduce eop count
params->eop -= 1;
params->read_count += 1;
params->partition_offset[message->partition] = message->offset -1;
}
if (log_level)
{
openlog("phpkafka", 0, LOG_USER);
syslog(LOG_INFO,
"phpkafka - %% Consumer reached end of %s [%"PRId32"] "
"message queue at offset %"PRId64"\n",
rd_kafka_topic_name(message->rkt),
message->partition, message->offset);
}
}
return;
}
if (params->partition_offset[message->partition] == -1)
params->eop -= 1;
//we have an offset, save it
params->partition_offset[message->partition] = message->offset;
//tally read_count
params->read_count += 1;
if (params->auto_commit == 0)
rd_kafka_offset_store(
message->rkt,
message->partition,
message->offset == 0 ? 0 : message->offset -1
);
}
int main (int argc, char **argv) {
if (argc < 0 /* always false */) {
rd_kafka_version();
rd_kafka_version_str();
rd_kafka_err2str(RD_KAFKA_RESP_ERR_NO_ERROR);
rd_kafka_errno2err(EINVAL);
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_error_cb(NULL, NULL);
rd_kafka_conf_set_stats_cb(NULL, NULL);
rd_kafka_conf_set_opaque(NULL, 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_set_partitioner_cb(NULL, NULL);
rd_kafka_topic_partition_available(NULL, 0);
rd_kafka_msg_partitioner_random(NULL, NULL, 0, 0, NULL, NULL);
rd_kafka_new(0, NULL, NULL, 0);
rd_kafka_destroy(NULL);
rd_kafka_name(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_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_poll(NULL, 0);
rd_kafka_brokers_add(NULL, NULL);
rd_kafka_set_logger(NULL, NULL);
rd_kafka_set_log_level(NULL, 0);
rd_kafka_log_print(NULL, 0, NULL, NULL);
rd_kafka_log_syslog(NULL, 0, NULL, NULL);
rd_kafka_outq_len(NULL);
rd_kafka_dump(NULL, NULL);
rd_kafka_thread_cnt();
rd_kafka_wait_destroyed(0);
}
return 0;
}
static void msg_consume (rd_kafka_message_t *rkmessage, void *opaque) {
if (rkmessage->err) {
if (rkmessage->err == RD_KAFKA_RESP_ERR__PARTITION_EOF) {
printf("%% Consumer reached end of %s [%"PRId32"] "
"message queue at offset %"PRId64"\n",
rd_kafka_topic_name(rkmessage->rkt),
rkmessage->partition, rkmessage->offset);
if (exit_eof)
run = 0;
return;
}
printf("%% Consume error for topic \"%s\" [%"PRId32"] "
"offset %"PRId64": %s\n",
rd_kafka_topic_name(rkmessage->rkt),
rkmessage->partition,
rkmessage->offset,
rd_kafka_message_errstr(rkmessage));
msgs_failed++;
return;
}
cnt.msgs++;
cnt.bytes += rkmessage->len;
if (!(cnt.msgs % 1000000))
printf("@%"PRId64": %.*s\n",
rkmessage->offset,
(int)rkmessage->len, (char *)rkmessage->payload);
#if 0 /* Future API */
/* We store offset when we're done processing
* the current message. */
rd_kafka_offset_store(rkmessage->rkt, rkmessage->partition,
rd_kafka_offset_next(rkmessage));
#endif
}
static
void queue_consume(rd_kafka_message_t *message, void *opaque)
{
struct consume_cb_params *params = opaque;
zval *return_value = params->return_value;
//all partitions EOF
if (params->eop < 1)
return;
//nothing more to read...
if (params->read_count == 0)
return;
if (message->err)
{
params->error_count += 1;
//if auto-commit is disabled:
if (params->auto_commit == 0)
//store offset
rd_kafka_offset_store(
message->rkt,
message->partition,
message->offset == 0 ? 0 : message->offset -1
);
if (message->err == RD_KAFKA_RESP_ERR__PARTITION_EOF)
{
if (params->partition_ends[message->partition] == 0)
{
params->eop -= 1;
params->partition_ends[message->partition] = 1;
}
if (log_level)
{
openlog("phpkafka", 0, LOG_USER);
syslog(LOG_INFO,
"phpkafka - %% Consumer reached end of %s [%"PRId32"] "
"message queue at offset %"PRId64"\n",
rd_kafka_topic_name(message->rkt),
message->partition, message->offset);
}
return;
}
//add_next_index_string(return_value, rd_kafka_message_errstr(message), 1);
if (log_level)
{
openlog("phpkafka", 0, LOG_USER);
syslog(LOG_INFO, "phpkafka - %% Consume error for topic \"%s\" [%"PRId32"] "
"offset %"PRId64": %s\n",
rd_kafka_topic_name(message->rkt),
message->partition,
message->offset,
rd_kafka_message_errstr(message)
);
}
return;
}
//only count successful reads!
//-1 means read all from offset until end
if (params->read_count != -1)
params->read_count -= 1;
//add message to return value (perhaps add as array -> offset + msg?
if (message->len > 0) {
//ensure there is a payload
char payload[(int) message->len];
sprintf(payload, "%.*s", (int) message->len, (char *) message->payload);
//add_index_string(return_value, (int) message->offset, payload, 1);
add_next_index_string(return_value, payload, 1);
} else {
add_next_index_string(return_value, "", 1);
}
//store offset if autocommit is disabled
if (params->auto_commit == 0)
rd_kafka_offset_store(
message->rkt,
message->partition,
message->offset
);
}
int main (int argc, char **argv) {
rd_kafka_t *rk;
char *broker = NULL;
char mode = 'C';
char *topic = NULL;
int partition = 0;
int opt;
int msgsize = 1024;
int msgcnt = -1;
int sendflags = 0;
int dispintvl = 1000;
struct {
rd_ts_t t_start;
rd_ts_t t_end;
rd_ts_t t_end_send;
uint64_t msgs;
uint64_t bytes;
rd_ts_t t_latency;
rd_ts_t t_last;
rd_ts_t t_total;
} cnt = {};
rd_ts_t now;
char *dirstr = "";
while ((opt = getopt(argc, argv, "PCt:p:b:s:c:fi:D")) != -1) {
switch (opt) {
case 'P':
case 'C':
mode = opt;
break;
case 't':
topic = optarg;
break;
case 'p':
partition = atoi(optarg);
break;
case 'b':
broker = optarg;
break;
case 's':
msgsize = atoi(optarg);
break;
case 'c':
msgcnt = atoi(optarg);
break;
case 'D':
sendflags |= RD_KAFKA_OP_F_FREE;
break;
case 'i':
dispintvl = atoi(optarg);
break;
default:
goto usage;
}
}
if (!topic || optind != argc) {
usage:
fprintf(stderr,
"Usage: %s [-C|-P] -t <topic> "
"[-p <partition>] [-b <broker>] [options..]\n"
"\n"
" Options:\n"
" -C | -P Consumer or Producer mode\n"
" -t <topic> Topic to fetch / produce\n"
" -p <num> Partition (defaults to 0)\n"
" -b <broker> Broker address (localhost:9092)\n"
" -s <size> Message size (producer)\n"
" -c <cnt> Messages to transmit/receive\n"
" -D Copy/Duplicate data buffer (producer)\n"
" -i <ms> Display interval\n"
"\n"
" In Consumer mode:\n"
" consumes messages and prints thruput\n"
" In Producer mode:\n"
" writes messages of size -s <..> and prints thruput\n"
"\n",
argv[0]);
exit(1);
}
dispintvl *= 1000; /* us */
signal(SIGINT, stop);
/* Socket hangups are gracefully handled in librdkafka on socket error
* without the use of signals, so SIGPIPE should be ignored by the
* calling program. */
signal(SIGPIPE, SIG_IGN);
if (mode == 'P') {
/*
* Producer
*/
char *sbuf = malloc(msgsize);
int endwait;
int outq;
int i;
memset(sbuf, 'R', msgsize);
if (msgcnt == -1)
printf("%% Sending messages of size %i bytes\n",
msgsize);
else
printf("%% Sending %i messages of size %i bytes\n",
msgcnt ,msgsize);
/* Create Kafka handle */
if (!(rk = rd_kafka_new(RD_KAFKA_PRODUCER, broker, NULL))) {
perror("kafka_new producer");
exit(1);
}
cnt.t_start = rd_clock();
while (run && (msgcnt == -1 || cnt.msgs < msgcnt)) {
char *pbuf = sbuf;
/* Send/Produce message. */
if (sendflags & RD_KAFKA_OP_F_FREE) {
/* Duplicate memory */
pbuf = malloc(msgsize);
memcpy(pbuf, sbuf, msgsize);
}
rd_kafka_produce(rk, topic, partition,
sendflags, pbuf, msgsize);
cnt.msgs++;
cnt.bytes += msgsize;
now = rd_clock();
if (cnt.t_last + dispintvl <= now) {
printf("%% %"PRIu64" messages and %"PRIu64
"bytes: %"PRIu64" msgs/s and "
"%.2f Mb/s\n",
cnt.msgs, cnt.bytes,
(cnt.msgs / (now - cnt.t_start)) *
1000000,
(float)(cnt.bytes /
(now - cnt.t_start)));
cnt.t_last = now;
}
}
/* Wait for messaging to finish. */
i = 0;
while (run && rd_kafka_outq_len(rk) > 0) {
if (!(i++ % (dispintvl/1000)))
printf("%% Waiting for %i messages in outq "
"to be sent. Abort with Ctrl-c\n",
rd_kafka_outq_len(rk));
usleep(1000);
}
cnt.t_end_send = rd_clock();
outq = rd_kafka_outq_len(rk);
cnt.msgs -= outq;
cnt.bytes -= msgsize * outq;
cnt.t_end = rd_clock();
/* Since there is no ack for produce messages in 0.7
* we wait some more for any packets in the socket buffers
* to be sent.
* This is fixed in protocol version 0.8 */
endwait = cnt.msgs * 10;
printf("%% Test timers stopped, but waiting %ims more "
"for the %"PRIu64 " messages to be transmitted from "
"socket buffers.\n"
"%% End with Ctrl-c\n",
endwait / 1000,
cnt.msgs);
run = 1;
while (run && endwait > 0) {
usleep(10000);
endwait -= 10000;
}
/* Destroy the handle */
rd_kafka_destroy(rk);
dirstr = "sent";
} else if (mode == 'C') {
/*
* Consumer
*/
rd_kafka_op_t *rko;
/* Base our configuration on the default config. */
rd_kafka_conf_t conf = rd_kafka_defaultconf;
/* The offset storage file is optional but its presence
* avoids starting all over from offset 0 again when
* the program restarts.
* ZooKeeper functionality will be implemented in future
* versions and then the offset will be stored there instead. */
conf.consumer.offset_file = "."; /* current directory */
/* Indicate to rdkafka that the application is responsible
* for storing the offset. This allows the application to
* succesfully handle a message before storing the offset.
* If this flag is not set rdkafka will store the offset
* just prior to returning the message from rd_kafka_consume().
*/
conf.flags |= RD_KAFKA_CONF_F_APP_OFFSET_STORE;
/* Tell rdkafka to (try to) maintain 10000 messages
* in its internal receive buffers. This is to avoid
* application -> rdkafka -> broker per-message ping-pong
* latency. */
conf.consumer.replyq_low_thres = 100000;
/* Use the consumer convenience function
* to create a Kafka handle. */
if (!(rk = rd_kafka_new_consumer(broker, topic,
(uint32_t)partition,
0, &conf))) {
perror("kafka_new_consumer");
exit(1);
}
cnt.t_start = rd_clock();
while (run && (msgcnt == -1 || msgcnt > cnt.msgs)) {
/* Fetch an "op" which is one of:
* - a kafka message (if rko_len>0 && rko_err==0)
* - an error (if rko_err)
*/
uint64_t latency;
latency = rd_clock();
if (!(rko = rd_kafka_consume(rk, 1000/*timeout ms*/)))
continue;
cnt.t_latency += rd_clock() - latency;
if (rko->rko_err)
fprintf(stderr, "%% Error: %.*s\n",
rko->rko_len, rko->rko_payload);
else if (rko->rko_len) {
cnt.msgs++;
cnt.bytes += rko->rko_len;
}
/* rko_offset contains the offset of the _next_
* message. We store it when we're done processing
* the current message. */
if (rko->rko_offset)
rd_kafka_offset_store(rk, rko->rko_offset);
/* Destroy the op */
rd_kafka_op_destroy(rk, rko);
now = rd_clock();
if (cnt.t_last + dispintvl <= now &&
cnt.t_start + 1000000 < now) {
printf("%% %"PRIu64" messages and %"PRIu64
" bytes: %"PRIu64" msgs/s and "
"%.2f Mb/s\n",
cnt.msgs, cnt.bytes,
(cnt.msgs / ((now - cnt.t_start)/1000))
* 1000,
(float)(cnt.bytes /
((now - cnt.t_start) / 1000)));
cnt.t_last = now;
}
}
cnt.t_end = rd_clock();
/* Destroy the handle */
rd_kafka_destroy(rk);
dirstr = "received";
}
if (cnt.t_end_send)
cnt.t_total = cnt.t_end_send - cnt.t_start;
else
cnt.t_total = cnt.t_end - cnt.t_start;
printf("%% %"PRIu64" messages and %"PRIu64" bytes "
"%s in %"PRIu64"ms: %"PRIu64" msgs/s and %.02f Mb/s\n",
cnt.msgs, cnt.bytes,
dirstr,
cnt.t_total / 1000,
(cnt.msgs / (cnt.t_total / 1000)) * 1000,
(float)(cnt.bytes / (cnt.t_total / 1000)));
if (cnt.t_latency)
printf("%% Average application fetch latency: %"PRIu64"us\n",
cnt.t_latency / cnt.msgs);
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_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;
}
int main (int argc, char **argv) {
rd_kafka_t *rk;
char *broker = NULL;
char mode = 'C';
char *topic = NULL;
int partition = 0;
int opt;
while ((opt = getopt(argc, argv, "PCt:p:b:")) != -1) {
switch (opt) {
case 'P':
case 'C':
mode = opt;
break;
case 't':
topic = optarg;
break;
case 'p':
partition = atoi(optarg);
break;
case 'b':
broker = optarg;
break;
default:
goto usage;
}
}
if (!topic || optind != argc) {
usage:
fprintf(stderr,
"Usage: %s [-C|-P] -t <topic> "
"[-p <partition>] [-b <broker>]\n"
"\n"
" Options:\n"
" -C | -P Consumer or Producer mode\n"
" -t <topic> Topic to fetch / produce\n"
" -p <num> Partition (defaults to 0)\n"
" -b <broker> Broker address (localhost:9092)\n"
"\n"
" In Consumer mode:\n"
" writes fetched messages to stdout\n"
" In Producer mode:\n"
" reads messages from stdin and sends to broker\n"
"\n",
argv[0]);
exit(1);
}
signal(SIGINT, stop);
if (mode == 'P') {
/*
* Producer
*/
char buf[2048];
int sendcnt = 0;
/* Create Kafka handle */
if (!(rk = rd_kafka_new(RD_KAFKA_PRODUCER, broker, NULL))) {
perror("kafka_new producer");
exit(1);
}
fprintf(stderr, "%% Type stuff and hit enter to send\n");
while (run && (fgets(buf, sizeof(buf), stdin))) {
int len = strlen(buf);
char *opbuf = malloc(len + 1);
strncpy(opbuf, buf, len + 1);
/* Send/Produce message. */
rd_kafka_produce(rk, topic, partition, RD_KAFKA_OP_F_FREE, opbuf, len);
fprintf(stderr, "%% Sent %i bytes to topic "
"%s partition %i\n", len, topic, partition);
sendcnt++;
}
/* Wait for messaging to finish. */
while (rd_kafka_outq_len(rk) > 0)
usleep(50000);
/* Since there is no ack for produce messages in 0.7
* we wait some more for any packets to be sent.
* This is fixed in protocol version 0.8 */
if (sendcnt > 0)
usleep(500000);
/* Destroy the handle */
rd_kafka_destroy(rk);
} else if (mode == 'C') {
/*
* Consumer
*/
rd_kafka_op_t *rko;
/* Base our configuration on the default config. */
rd_kafka_conf_t conf = rd_kafka_defaultconf;
/* The offset storage file is optional but its presence
* avoids starting all over from offset 0 again when
* the program restarts.
* ZooKeeper functionality will be implemented in future
* versions and then the offset will be stored there instead. */
conf.consumer.offset_file = "."; /* current directory */
/* Indicate to rdkafka that the application is responsible
* for storing the offset. This allows the application to
* succesfully handle a message before storing the offset.
* If this flag is not set rdkafka will store the offset
* just prior to returning the message from rd_kafka_consume().
*/
conf.flags |= RD_KAFKA_CONF_F_APP_OFFSET_STORE;
/* Use the consumer convenience function
* to create a Kafka handle. */
if (!(rk = rd_kafka_new_consumer(broker, topic,
(uint32_t)partition,
0, &conf))) {
perror("kafka_new_consumer");
exit(1);
}
while (run) {
/* Fetch an "op" which is one of:
* - a kafka message (if rko_len>0 && rko_err==0)
* - an error (if rko_err)
*/
if (!(rko = rd_kafka_consume(rk, 1000/*timeout ms*/)))
continue;
if (rko->rko_err)
fprintf(stderr, "%% Error: %.*s\n",
rko->rko_len, rko->rko_payload);
else if (rko->rko_len) {
fprintf(stderr, "%% Message with "
"next-offset %"PRIu64" is %i bytes\n",
rko->rko_offset, rko->rko_len);
hexdump(stdout, "Message",
rko->rko_payload, rko->rko_len);
}
/* rko_offset contains the offset of the _next_
* message. We store it when we're done processing
* the current message. */
if (rko->rko_offset)
rd_kafka_offset_store(rk, rko->rko_offset);
/* Destroy the op */
rd_kafka_op_destroy(rk, rko);
}
/* Destroy the handle */
rd_kafka_destroy(rk);
}
return 0;
}
int main (int argc, char **argv) {
rd_kafka_t *rk;
char *broker = NULL;
int mode_p = 0;
int mode_c = 0;
char *topic;
int partition;
/* Command line argument option definition. */
rd_opt_t opts[] = {
{ RD_OPT_BOOL|RD_OPT_MUT1|RD_OPT_REQ, 'P', "produce",
0, &mode_p, "Run as producer" },
{ RD_OPT_BOOL|RD_OPT_MUT1|RD_OPT_REQ, 'C', "consume",
0, &mode_c, "Run as consumer" },
{ RD_OPT_STR|RD_OPT_REQ, 't', "topic", 1, &topic, "Topic" },
{ RD_OPT_INT|RD_OPT_REQ, 'p', "partition", 1, &partition,
"Partition" },
{ RD_OPT_STR, 'b', "broker", 1, &broker, "Broker host:port" },
{ RD_OPT_END },
};
/* Initialize librd */
rd_init();
/* Parse command line arguments. */
if (!rd_opt_get(opts, argc, argv, NULL, NULL))
exit(1);
signal(SIGINT, stop);
if (mode_p) {
/*
* Producer
*/
char buf[1024];
/* Create Kafka handle */
if (!(rk = rd_kafka_new(RD_KAFKA_PRODUCER, broker, NULL))) {
perror("kafka_new producer");
exit(1);
}
fprintf(stderr, "%% Type stuff and hit enter to send\n");
while (run && (fgets(buf, sizeof(buf), stdin))) {
int len = strlen(buf);
/* Send/Produce message. */
rd_kafka_produce(rk, topic, partition, 0, buf, len);
fprintf(stderr, "%% Sent %i bytes to topic "
"%s partition %i\n", len, topic, partition);
}
/* Destroy the handle */
rd_kafka_destroy(rk);
} else {
/*
* Consumer
*/
rd_kafka_op_t *rko;
/* Base our configuration on the default config. */
rd_kafka_conf_t conf = rd_kafka_defaultconf;
/* The offset storage file is optional but its presence
* avoids starting all over from offset 0 again when
* the program restarts.
* ZooKeeper functionality will be implemented in future
* versions and then the offset will be stored there instead. */
conf.consumer.offset_file = "."; /* current directory */
/* Indicate to rdkafka that the application is responsible
* for storing the offset. This allows the application to
* succesfully handle a message before storing the offset.
* If this flag is not set rdkafka will store the offset
* just prior to returning the message from rd_kafka_consume().
*/
conf.flags |= RD_KAFKA_CONF_F_APP_OFFSET_STORE;
/* Use the consumer convenience function
* to create a Kafka handle. */
if (!(rk = rd_kafka_new_consumer(broker, topic,
(uint32_t)partition,
0, &conf))) {
perror("kafka_new_consumer");
exit(1);
}
while (run) {
/* Fetch an "op" which is one of:
* - a kafka message (if rko_len>0 && rko_err==0)
* - an error (if rko_err)
*/
if (!(rko = rd_kafka_consume(rk, 1000/*timeout ms*/)))
continue;
if (rko->rko_err)
fprintf(stderr, "%% Error: %.*s\n",
rko->rko_len, rko->rko_payload);
else if (rko->rko_len) {
fprintf(stderr, "%% Message with "
"next-offset %"PRIu64" is %i bytes\n",
rko->rko_offset, rko->rko_len);
rd_hexdump(stdout, "Message",
rko->rko_payload, rko->rko_len);
}
/* rko_offset contains the offset of the _next_
* message. We store it when we're done processing
* the current message. */
if (rko->rko_offset)
rd_kafka_offset_store(rk, rko->rko_offset);
/* Destroy the op */
rd_kafka_op_destroy(rk, rko);
}
/* Destroy the handle */
rd_kafka_destroy(rk);
}
return 0;
}
