Added song streamingh endpoint and removed redundant making oatpp::String shared when it already is a shared object #61

src/Main.cpp

@@ -5,7 +5,7 @@
 #include <string>
 
 #include <mysql/mysql.h>
-#include "oatpp/network/server/Server.hpp"
+#include <oatpp/network/server/Server.hpp>
 #include "oatpp/network/server/SimpleTCPConnectionProvider.hpp"
 #include "oatpp/web/server/HttpConnectionHandler.hpp"
 

src/callback/StreamCallback.cpp

@@ -0,0 +1,42 @@
+#include "callback/StreamCallback.h"
+
+#include <iostream>
+#include <fstream>
+#include <memory>
+
+callback::StreamCallback::StreamCallback() : 
+    m_counter(0) { }
+
+callback::StreamCallback::StreamCallback(const std::string& songPath) : 
+    m_songPath(songPath),
+    m_counter(0),
+    m_bytesRead(0) 
+{ 
+    // getting file size
+    std::ifstream song(m_songPath.c_str(), std::ios::binary | std::ios::in | std::ios::ate);
+    m_fileSize = song.tellg();
+    std::cout << "file size is " << m_fileSize << " bytes" << std::endl;
+}
+
+
+oatpp::data::v_io_size callback::StreamCallback::read(void *buff, oatpp::data::v_io_size count) 
+{
+    if (m_counter >= m_fileSize) {
+        std::cout << "done streaming song" << std::endl;
+        return 0;
+    }
+
+    std::fstream song(m_songPath.c_str(), std::ios::binary | std::ios::in);
+    song.seekg(m_counter);
+
+    std::unique_ptr<char[]> data(new char[count]);
+
+    song.read(data.get(), count);
+    std::memcpy(buff, data.get(), count);
+
+    m_counter += count;
+
+    song.close();
+
+    return count;
+}