Split out sender behavior into new class

transportfragment.hpp

@@ -0,0 +1,58 @@
+#ifndef TRANSPORT_FRAGMENT_HPP
+#define TRANSPORT_FRAGMENT_HPP
+
+#include <stdint.h>
+#include <vector>
+#include <string>
+
+#include "transportinstruction.pb.h"
+
+using namespace std;
+using namespace TransportBuffers;
+
+namespace Network {
+  class Fragment
+  {
+  private:
+    static const size_t frag_header_len = 2 * sizeof( uint16_t );
+
+  public:
+    uint16_t id;
+    uint16_t fragment_num;
+    bool final;
+
+    bool initialized;
+
+    string contents;
+
+    Fragment()
+      : id( -1 ), fragment_num( -1 ), final( false ), initialized( false ), contents()
+    {}
+
+    Fragment( uint16_t s_id, uint16_t s_fragment_num, bool s_final, string s_contents )
+      : id( s_id ), fragment_num( s_fragment_num ), final( s_final ), initialized( true ),
+	contents( s_contents )
+    {}
+
+    Fragment( string &x );
+
+    string tostring( void );
+
+    bool operator==( const Fragment &x );
+  };
+
+  class FragmentAssembly
+  {
+  private:
+    vector<Fragment> fragments;
+    uint16_t current_id;
+    int fragments_arrived, fragments_total;
+
+  public:
+    FragmentAssembly() : fragments(), current_id( -1 ), fragments_arrived( 0 ), fragments_total( -1 ) {}
+    bool add_fragment( Fragment &inst );
+    Instruction get_assembly( void );
+  };
+}
+
+#endif