public override RELOAD_MessageBody FromReader(ReloadMessage rm, BinaryReader reader, long reload_msg_size)
{
/* try to read the packet as a UpdateReqAns packet */
try
{
RELOAD_MsgCode = (RELOAD_MessageCode)(UInt16)IPAddress.NetworkToHostOrder(
reader.ReadInt16());
//reload_msg_size -= 2;
UInt32 message_len = (UInt32)(IPAddress.HostToNetworkOrder(
reader.ReadInt32()));
reload_msg_size -= 4;
m_successors.Clear();
m_predecessors.Clear();
if (RELOAD_MsgCode == RELOAD_MessageCode.Update_Request)
{
m_TotalSeconds = (UInt32)IPAddress.NetworkToHostOrder(
reader.ReadInt32());
reload_msg_size -= 4;
m_type = (ChordUpdateType)reader.ReadByte();
reload_msg_size -= 1;
int iLengthOfPredecessors = IPAddress.NetworkToHostOrder(
reader.ReadInt16());
reload_msg_size -= (iLengthOfPredecessors + 2);
if (iLengthOfPredecessors > 0)
{
while (iLengthOfPredecessors > 0)
{
m_predecessors.Add(new NodeId(reader.ReadBytes(ReloadGlobals.NODE_ID_DIGITS)));
iLengthOfPredecessors -= ReloadGlobals.NODE_ID_DIGITS;
}
}
int iLengthOfSuccessors = IPAddress.NetworkToHostOrder(reader.ReadInt16());
reload_msg_size -= (iLengthOfSuccessors + 2);
if (iLengthOfSuccessors > 0)
{
while (iLengthOfSuccessors > 0)
{
m_successors.Add(new NodeId(reader.ReadBytes(ReloadGlobals.NODE_ID_DIGITS)));
iLengthOfSuccessors -= ReloadGlobals.NODE_ID_DIGITS;
}
}
}
else
{
UInt16 Result = (UInt16)IPAddress.NetworkToHostOrder(reader.ReadInt16());
reload_msg_size -= 2;
}
}
catch (Exception ex)
{
throw ex;
}
return this;
}
public ReloadMessage create_update_req(Destination destination,
TopologyPlugin.RoutingTable rt, ChordUpdateType type)
{
return create_reload_message(destination, ++m_ReloadConfig.TransactionID,
new UpdateReqAns(rt.GetApproved(rt.Successors), rt.GetApproved(rt.Predecessors),
type, m_ReloadConfig.StartTime));
}
public UpdateReqAns(List<NodeId> successors, List<NodeId> predecessors, ChordUpdateType type, DateTime UpTime)
// call constructor above
: this()
{
RELOAD_MsgCode = RELOAD_MsgCode = RELOAD_MessageCode.Update_Request;
m_type = type;
m_successors = successors;
m_predecessors = predecessors;
/* Another validation that we send no more than SUCCESSOR_CACHE_SIZE values
* as we store more for internal use
*/
if (m_successors.Count > ReloadGlobals.SUCCESSOR_CACHE_SIZE)
m_successors.RemoveRange(ReloadGlobals.SUCCESSOR_CACHE_SIZE, m_successors.Count - ReloadGlobals.SUCCESSOR_CACHE_SIZE);
if (m_predecessors.Count > ReloadGlobals.SUCCESSOR_CACHE_SIZE)
m_predecessors.RemoveRange(ReloadGlobals.SUCCESSOR_CACHE_SIZE, m_predecessors.Count - ReloadGlobals.SUCCESSOR_CACHE_SIZE);
m_UpTime = UpTime;
}
