Class ProcessWriteInt

  • All Implemented Interfaces:
    CSProcess

    public class ProcessWriteInt
    extends java.lang.Object
    implements CSProcess
    Writes one int to its output channel.

    Process Diagram

    Description

    ProcessWriteInt is a process that performs a single write to its out channel and then terminates. The int that is written must first be placed in the public value field of this process (which is safe to set before and in between process runs).

    ProcessWriteInt declaration, construction and use should normally be localised within a single method -- so we feel no embarassment about its public field. Its only (envisaged) purpose is as described in the example below.

    Channel Protocols

    Output Channels
    out int All channels in this package carry integers.

    Example

    ProcessWriteInt is designed to simplify writing in parallel to channels. Make as many instances as there are channels, binding each instance to a different channel, together with a Parallel object in which to run them:
       ChannelOutputInt out0, out1;
       .
       .
       .
       ProcessWriteInt write0 = new ProcessWriteInt (out0);
       ProcessWriteInt write1 = new ProcessWriteInt (out1);
       CSProcess parWrite01 = new Parallel (new CSProcess[] {out0, out1});
     
    The above is best done once, before any looping over the parallel read commences. A parallel write can now be performed at any time (and any number of times) by executing:
         write0.value = ...;   // whatever we want sent down out0
         write1.value = ...;   // whatever we want sent down out1
         parWrite01.run ();
     
    This terminates when, and only when, both writes have completed -- the events may occur in any order.
    See Also:
    Parallel, ProcessRead, ProcessWrite, ProcessReadInt
    • Field Summary

      Fields 
      Modifier and Type Field Description
      private ChannelOutputInt out
      The channel to which to write
      int value
      The int to be written to the channel
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void run()
      The main body of this process.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • value

        public int value
        The int to be written to the channel
    • Constructor Detail

      • ProcessWriteInt

        public ProcessWriteInt​(ChannelOutputInt out)
        Construct a new ProcessWriteInt.
        Parameters:
        out - the channel to which to write
    • Method Detail

      • run

        public void run()
        The main body of this process.
        Specified by:
        run in interface CSProcess