/// <summary>
/// Allows the intervals between retransmission to be specified.
/// </summary>
/// <param name="com">
/// If not null, its method <code>retransmit()</code> will be called when a message
/// needs to be retransmitted (called by the Retransmitter).
/// </param>
/// <param name="interval">Array of intervals between retransmissions</param>
public AckSenderWindow(RetransmitCommand com, long[] interval)
{
retransmitter = new Retransmitter(null, this);
retransmit_command = com;
this.interval = interval;
retransmitter.setRetransmitTimeouts(interval);
}
/* ------------------------------- Private Methods -------------------------------------- */
/// <summary>
/// Initialises this object
/// </summary>
/// <param name="sender">The address from which retransmissions are expected</param>
/// <param name="cmd">The retransmission callback reference</param>
/// <param name="sched">Schedular for retransmit tasks</param>
/// <param name="sched_owned">sched_owned whether the scheduler parameter is owned by this object or is externally provided</param>
private void init(Address sender, RetransmitCommand cmd, TimeScheduler sched, bool sched_owned)
{
this.sender = sender;
this.cmd = cmd;
retransmitter_owned = sched_owned;
retransmitter = sched;
}
/// <summary>
/// Allows the intervals between retransmission to be specified.
/// </summary>
/// <param name="com">
/// If not null, its method <code>retransmit()</code> will be called when a message
/// needs to be retransmitted (called by the Retransmitter).
/// </param>
/// <param name="interval">Array of intervals between retransmissions</param>
public AckSenderWindow(RetransmitCommand com, long[] interval)
{
retransmitter=new Retransmitter(null, this);
retransmit_command=com;
this.interval=interval;
retransmitter.setRetransmitTimeouts(interval);
}
/// <summary> Creates a new instance. Thre retransmission thread has to be started separately with
/// <code>start()</code>.
/// </summary>
/// <param name="com">If not null, its method <code>retransmit()</code> will be called when a message
/// needs to be retransmitted (called by the Retransmitter).
/// </param>
public AckSenderWindow(RetransmitCommand com, ILogger NCacheLog)
{
_ncacheLog = NCacheLog;
InitBlock();
retransmit_command = com;
retransmitter.RetransmitTimeouts = interval;
}
/// <summary> This constructor whould be used when we want AckSenderWindow to send the message added
/// by add(), rather then ourselves.
/// </summary>
public AckSenderWindow(RetransmitCommand com, long[] interval, Protocol transport, ILogger NCacheLog)
{
_ncacheLog = NCacheLog;
InitBlock();
retransmit_command = com;
this.interval = interval;
this.transport = transport;
retransmitter.RetransmitTimeouts = interval;
}
public AckSenderWindow(RetransmitCommand com, long[] interval, ILogger NCacheLog)
{
//this.nTrace = nTrace;
_ncacheLog = NCacheLog;
InitBlock();
retransmit_command = com;
this.interval = interval;
retransmitter.RetransmitTimeouts = interval;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="low">Lowest sequence number in the Entry</param>
/// <param name="high">Highest sequence number in the Entry</param>
/// <param name="intervals">Time intervals between retransmission</param>
/// <param name="initialSender">Sender of the messages</param>
/// <param name="retCmd">Method to call when retransmitting</param>
public Entry(long low, long high, long[] intervals, Address initialSender, RetransmitCommand retCmd) : base(intervals)
{
this.low = low;
this.high = high;
this.initialSender = initialSender;
this.retCmd = retCmd;
list = new ArrayList();
list.Add(new long[] { low, high });
}
/// <summary> Setup this object's state
///
/// </summary>
/// <param name="cmd">the callback object for retranmissions
/// </param>
/// <param name="retransmit_timeout">the interval between two consecutive
/// retransmission attempts
/// </param>
/// <param name="sched">the external scheduler to use to schedule retransmissions
/// </param>
/// <param name="sched_owned">if true, the scheduler is owned by this object and
/// can be started/stopped/destroyed. If false, the scheduler is shared
/// among multiple objects and start()/stop() should not be called from
/// within this object
///
/// </param>
/// <throws> IllegalArgumentException if <code>cmd</code> is null </throws>
private void init(RetransmitCommand cmd, long[] retransmit_intervals, TimeScheduler sched, bool sched_owned)
{
if (cmd == null)
{
NCacheLog.Error("AckMcastSenderWindow.init", "command is null. Cannot retransmit " + "messages !");
throw new System.ArgumentException("Command is null.");
}
retransmitter_owned = sched_owned;
retransmitter = sched;
this.retransmit_intervals = retransmit_intervals;
this.cmd = cmd;
start();
}
/// <summary>
/// Constructor: Create a new Retransmitter associated with the given sender address
/// </summary>
/// <param name="sender">The address from which retransmissions are expected or to which retransmissions are sent</param>
/// <param name="cmd">The retransmission callback reference</param>
public Retransmitter(Address sender, RetransmitCommand cmd)
{
init(sender, cmd, new TimeScheduler(SUSPEND_TIMEOUT), true);
}
/// <summary>
/// Constructor: Create a new Retransmitter associated with the given sender address
/// </summary>
/// <param name="sender">The address from which retransmissions are expected or to which retransmissions are sent</param>
/// <param name="cmd">The retransmission callback reference</param>
/// <param name="sched">The retransmissions scheduler</param>
public Retransmitter(Address sender, RetransmitCommand cmd, TimeScheduler sched)
{
init(sender, cmd, sched, false);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="low">Lowest sequence number in the Entry</param>
/// <param name="high">Highest sequence number in the Entry</param>
/// <param name="intervals">Time intervals between retransmission</param>
/// <param name="initialSender">Sender of the messages</param>
/// <param name="retCmd">Method to call when retransmitting</param>
public Entry(long low, long high, long[] intervals, Address initialSender, RetransmitCommand retCmd)
: base(intervals)
{
this.low = low;
this.high = high;
this.initialSender = initialSender;
this.retCmd = retCmd;
list = new ArrayList();
list.Add(new long[]{low,high});
}
/// <summary>
/// Constructor: Create a new Retransmitter associated with the given sender address
/// </summary>
/// <param name="sender">The address from which retransmissions are expected or to which retransmissions are sent</param>
/// <param name="cmd">The retransmission callback reference</param>
public Retransmitter(Address sender, RetransmitCommand cmd)
{
init(sender, cmd, new TimeScheduler(SUSPEND_TIMEOUT), true);
}
/// <summary>
/// Constructor: Create a new Retransmitter associated with the given sender address
/// </summary>
/// <param name="sender">The address from which retransmissions are expected or to which retransmissions are sent</param>
/// <param name="cmd">The retransmission callback reference</param>
/// <param name="sched">The retransmissions scheduler</param>
public Retransmitter(Address sender, RetransmitCommand cmd, TimeScheduler sched)
{
init(sender, cmd, sched, false);
}
/// <summary> Create and <b>start</b> the retransmitter
///
/// </summary>
/// <param name="cmd">the callback object for retranmissions
/// </param>
/// <param name="sched">the external scheduler to use to schedule retransmissions
///
/// </param>
/// <throws> IllegalArgumentException if <code>cmd</code> is null </throws>
public AckMcastSenderWindow(RetransmitCommand cmd, TimeScheduler sched, ILogger NCacheLog)
{
this._ncacheLog = NCacheLog;
init(cmd, RETRANSMIT_TIMEOUTS, sched, false);
}
/// <summary> Create a new Retransmitter associated with the given sender address</summary>
/// <param name="sender">the address from which retransmissions are expected or to which retransmissions are sent
/// </param>
/// <param name="cmd">the retransmission callback reference
/// </param>
public Retransmitter(Address sender, RetransmitCommand cmd)
{
init(sender, cmd, new TimeScheduler(30 * 1000), true);
}
/// <summary> Create and <b>start</b> the retransmitter
///
/// </summary>
/// <param name="cmd">the callback object for retranmissions
/// </param>
/// <param name="retransmit_timeout">the interval between two consecutive
/// retransmission attempts
///
/// </param>
/// <throws> IllegalArgumentException if <code>cmd</code> is null </throws>
public AckMcastSenderWindow(RetransmitCommand cmd, long[] retransmit_intervals, ILogger NCacheLog)
{
this._ncacheLog = NCacheLog;
init(cmd, retransmit_intervals, new TimeScheduler(SUSPEND_TIMEOUT), true);
}
/* ------------------------------- Private Methods -------------------------------------- */
/// <summary>
/// Initialises this object
/// </summary>
/// <param name="sender">The address from which retransmissions are expected</param>
/// <param name="cmd">The retransmission callback reference</param>
/// <param name="sched">Schedular for retransmit tasks</param>
/// <param name="sched_owned">sched_owned whether the scheduler parameter is owned by this object or is externally provided</param>
private void init(Address sender, RetransmitCommand cmd, TimeScheduler sched, bool sched_owned)
{
this.sender = sender;
this.cmd = cmd;
retransmitter_owned = sched_owned;
retransmitter = sched;
}