Successfully synchronizes state. Here testing with 50% bidi packet loss.

networkinstruction.cpp

@@ -1,4 +1,5 @@
 #include <endian.h>
+#include <assert.h>
 
 #include "networktransport.hpp"
 
@@ -17,7 +18,21 @@ string Instruction::tostring( void )
   ret += network_order_string( old_num );
   ret += network_order_string( new_num );
   ret += network_order_string( ack_num );
+  ret += network_order_string( throwaway_num );
   ret += diff;
 
   return ret;
 }
+
+Instruction::Instruction( string &x )
+  : old_num( -1 ), new_num( -1 ), ack_num( -1 ), throwaway_num( -1 ), diff()
+{
+  assert( x.size() >= 4 * sizeof( uint64_t ) );
+  uint64_t *data = (uint64_t *)x.data();
+  old_num = be64toh( data[ 0 ] );
+  new_num = be64toh( data[ 1 ] );
+  ack_num = be64toh( data[ 2 ] );
+  throwaway_num = be64toh( data[ 3 ] );
+
+  diff = string( x.begin() + 4 * sizeof( uint64_t ), x.end() );
+}