Add initial consumer code

src/topic_partition_list.cpp

@@ -0,0 +1,53 @@
+#include "topic_partition_list.h"
+#include "topic_partition.h"
+
+namespace cppkafka {
+
+const size_t TopicPartitionList::DEFAULT_CONTAINER_SIZE = 5;
+
+TopicPartitionList::TopicPartitionList() 
+: TopicPartitionList(DEFAULT_CONTAINER_SIZE) {
+
+}
+
+TopicPartitionList::TopicPartitionList(size_t size) 
+: handle_(make_handle(rd_kafka_topic_partition_list_new(size))) {
+
+}
+
+TopicPartitionList::TopicPartitionList(const TopicPartitionList& rhs) 
+: handle_(make_handle(rd_kafka_topic_partition_list_copy(rhs.get_handle()))) {
+
+}
+
+TopicPartitionList& TopicPartitionList::operator=(const TopicPartitionList& rhs) {
+    handle_.reset(rd_kafka_topic_partition_list_copy(rhs.get_handle()));
+    return *this;
+}
+
+void TopicPartitionList::add(const TopicPartition& topic_partition) {
+    rd_kafka_topic_partition_t* element = nullptr;
+    element = rd_kafka_topic_partition_list_add(handle_.get(),
+                                                topic_partition.get_topic().data(),
+                                                topic_partition.get_partition());
+    element->offset = topic_partition.get_offset();
+}
+
+size_t TopicPartitionList::size() const {
+    return handle_->cnt;
+}
+
+bool TopicPartitionList::empty() const {
+    return size() == 0;
+}
+
+rd_kafka_topic_partition_list_t* TopicPartitionList::get_handle() const {
+    return handle_.get();
+}
+
+TopicPartitionList::HandlePtr
+TopicPartitionList::make_handle(rd_kafka_topic_partition_list_t* ptr) {
+    return HandlePtr(ptr, &rd_kafka_topic_partition_list_destroy);
+}
+
+} // cppkafka