Package org.drasyl.handler.arq.gobackn

Interface Window

All Known Implementing Classes:
SimpleWindow
public interface Window
This class does model a sliding window in the Go-Back-N ARQ protocol.

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Interface
    Description
    static final class 
    Window.Frame
     

  • 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()
     

  • Method Details

    • add

      boolean add(GoBackNArqData msg, io.netty.channel.ChannelPromise promise)
      Adds the given msg to the window, if there is enough capacity.
      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

      io.netty.channel.ChannelPromise remove()
      Removes the oldest message from the window.
      Returns:
      the write promise of the oldest message

    • getQueue

      List<Window.Frame> getQueue()
      Returns:
      the original unacknowledged message queue

    • size

      int size()
      Returns:
      the size of the window

    • getFreeSpace

      int getFreeSpace()
      Returns:
      the free space of the window

    • removeAndFailAll

      void removeAndFailAll(Throwable cause)
      Clears the window and let's fail all write promises.
      Parameters:
      cause - the cause of the failure