C++ librdkafka线程失败时未清理

在我的应用程序中，我创建了一个生产者和一个消费者

conf->set("dr_cb", delivery_cb, errstr);
conf->set("event_cb", event_cb, errstr);

RdKafka::Producer::create(conf.get(), errstr)

conf->set("log_level", "0", errstr);
conf->set("group.id", group_id, errstr);
conf->set("client.id", m_kafka_client_id, errstr);
conf->set("auto.offset.reset", "earliest", errstr);
conf->set("rebalance_cb", rebalance_cb, errstr);
conf->set("statistics.interval.ms", "3000", errstr);
conf->set("event_cb", event_cb, errstr);

RdKafka::KafkaConsumer::create(conf.get(), errstr)

然后，我尝试获取元数据，如下所示

err = _consumer->metadata(false, nullptr, &metadata, METADATA_TIMEOUT); 
std::unique_ptr<RdKafka::Metadata> metadata_uptr(metadata); // Handover the raw pointer to the unique_ptr now

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RdKafka:：KafkanConsumer被包装在另一个容器中，“myobject_wrapper->close（）”未重定向到“RdKafka:：KafkanConsumer:：close”

在我的应用程序中解决了这个问题后，现在一切正常

#0  0x00007f6acc031cf2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000004b8e65 in cnd_timedwait_ms (cnd=cnd@entry=0xab41b8, mtx=mtx@entry=0xab4190, timeout_ms=<optimized out>) at tinycthread.c:501
#2  0x00000000004853aa in rd_kafka_q_serve (rkq=0xab4190, timeout_ms=<optimized out>, max_cnt=max_cnt@entry=0, cb_type=cb_type@entry=RD_KAFKA_Q_CB_CALLBACK, 
callback=callback@entry=0x0, opaque=opaque@entry=0x0) at rdkafka_queue.c:440
#3  0x000000000045a43c in rd_kafka_thread_main (arg=arg@entry=0xabf760) at rdkafka.c:1227
#4  0x00000000004b8c07 in _thrd_wrapper_function (aArg=<optimized out>) at tinycthread.c:624
#5  0x00007f6acc02de25 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f6acaa7834d in clone () from /lib64/libc.so.6

RdKafka::wait_destroyed(5000);