internal ICollection <Protocol> decode(OctetsStream os, Transport transport)
{
ICollection <Protocol> protocols = new List <Protocol>();
Manager manager = transport.getManager();
while (os.remain() > 0)
{
os.begin();
try
{
int type = os.unmarshal_int();
int size = os.unmarshal_size();
Stub stub;
if (stubs.TryGetValue(type, out stub))
{
stub.check(size);
if (size > os.remain())
{
os.rollback();
break; // not enough
}
int startpos = os.position();
Protocol p = stub.newInstance();
try { p.unmarshal(os); }
catch (MarshalException e)
{
throw new CodecException("State.decode (" + type + ", " + size + ")", e);
}
p.setTransport(transport);
protocols.Add(p);
if ((os.position() - startpos) != size)
{
throw new CodecException("State.decode(" + type + ", " + size + ")=" + (os.position() - startpos));
}
}
else
{
throw new CodecException("unknown protocol (" + type + ", " + size + ")");
}
os.commit();
}
catch (MarshalException)
{
os.rollback();
break;
}
}
return(protocols);
}