Package org.drasyl.handler.arq.gobackn

Class SimpleWindow

java.lang.Object

org.drasyl.handler.arq.gobackn.SimpleWindow

All Implemented Interfaces:

Window

public class SimpleWindow
extends Object
implements Window

Nested Class Summary

Nested classes/interfaces inherited from interface org.drasyl.handler.arq.gobackn.Window

Window.Frame

Constructor Summary

Constructors

Constructor	Description
SimpleWindow(int capacity)	Creates a new simple window.

Method Summary

Modifier and Type	Method	Description
boolean	add(GoBackNArqData msg, io.netty.channel.ChannelPromise promise)	Adds the given msg to the window, if there is enough capacity.
int	getFreeSpace()
List<Window.Frame>	getQueue()
io.netty.channel.ChannelPromise	remove()	Removes the oldest message from the window.
void	removeAndFailAll(Throwable cause)	Clears the window and let's fail all write promises.
int	size()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SimpleWindow

public SimpleWindow(int capacity)

Creates a new simple window.

Parameters:

capacity - the window size/capacity

Method Detail

add

public boolean add(GoBackNArqData msg,
                   io.netty.channel.ChannelPromise promise)

Description copied from interface: Window

Adds the given msg to the window, if there is enough capacity.

Specified by:

add in interface Window

Parameters:

msg - the message to add

promise - the write promise

Returns:

true, if the message could be added, false if the window has no capacity

remove

public io.netty.channel.ChannelPromise remove()

Description copied from interface: Window

Removes the oldest message from the window.

Specified by:

remove in interface Window

Returns:

the write promise of the oldest message

getQueue

public List<Window.Frame> getQueue()

Specified by:

getQueue in interface Window

Returns:

the original unacknowledged message queue

size

public int size()

Specified by:

size in interface Window

Returns:

the size of the window

getFreeSpace

public int getFreeSpace()

Specified by:

getFreeSpace in interface Window

Returns:

the free space of the window

removeAndFailAll

public void removeAndFailAll(Throwable cause)

Description copied from interface: Window

Clears the window and let's fail all write promises.

Specified by:

removeAndFailAll in interface Window

Parameters:

cause - the cause of the failure