Add Consumer::poll

include/cppkafka/buffer.h

@@ -13,9 +13,9 @@ public:
     Buffer(const DataType* data, size_t size);
 
     Buffer(const Buffer&) = delete;
-    Buffer(Buffer&&) = delete;
+    Buffer(Buffer&&) = default;
     Buffer& operator=(const Buffer&) = delete;
-    Buffer& operator=(Buffer&&) = delete;
+    Buffer& operator=(Buffer&&) = default;
 
     const DataType* get_data() const;
     size_t get_size() const;

include/cppkafka/consumer.h

@@ -3,8 +3,10 @@
 
 #include <vector>
 #include <string>
+#include <chrono>
 #include "kafka_handle_base.h"
 #include "topic_partition_list.h"
+#include "message.h"
 
 namespace cppkafka {
 
@@ -15,12 +17,20 @@ class Consumer : public KafkaHandleBase {
 public:
     Consumer(const Configuration& config);
 
+    void set_timeout(const std::chrono::milliseconds timeout);
+
     void subscribe(const std::vector<std::string>& topics);
     void unsubscribe();
 
     void assign(const TopicPartitionList& topic_partitions);
+
+    Message poll();
 private:
+    static const std::chrono::milliseconds DEFAULT_TIMEOUT;
+
     void check_error(rd_kafka_resp_err_t error);
+
+    std::chrono::milliseconds timeout_ms_;
 };
 
 } // cppkafka

include/cppkafka/message.h

@@ -12,6 +12,10 @@ namespace cppkafka {
 class Message {
 public:
     Message(rd_kafka_message_t* handle);
+    Message(const Message&) = delete;
+    Message(Message&& rhs) = default;
+    Message& operator=(const Message&) = delete;
+    Message& operator=(Message&& rhs) = default;
 
     bool has_error() const;
     rd_kafka_resp_err_t get_error() const;