Class Xor

java.lang.Object
org.jcsp.plugNplay.Xor
All Implemented Interfaces:
CSProcess

public final class Xor extends Object implements CSProcess
Bitwise xors two Integer streams to one stream.

Process Diagram

    in0  _____
   -->--|     | out
    in1 | Xor |-->--
   -->--|_____|
 

Description

This is a process with an infinite loop that waits for a Object of type Number to be sent down each of its input channels. The loop body then calculates the bitwise XOR on the values of the two Numbers and writes the result as a new Integer to its output channel.

Channel Protocols

Input Channels
in1,in2 java.lang.Number Both Channels can accept data from any subclass of Number. It is possible to send Floats down one channel and Integers down the other. However all values will be converted to ints.
Output Channels
out java.lang.Integer The output will always be of type Integer.

Example

The following example shows how to use the Xor process in a small program. The program also uses some of the other building block processes. It generates a sequence of numbers, XORs them with Integer.MAX_VALUE to give a decending sequence of numbers (from Integer.MAX_VALUE) and prints this on the screen.
 import org.jcsp.lang.*;
 import org.jcsp.plugNplay.*;
 
 public class XorExample {
 
   public static void main (String[] argv) {
 
     One2OneChannel a = Channel.one2one ();
     One2OneChannel b = Channel.one2one ();
     One2OneChannel c = Channel.one2one ();
 
     new Parallel (
       new CSProcess[] {
         new Numbers (a.out ()),
         new Generate (b.out (), Integer.MAX_VALUE),
         new Xor (a.in (), b.in (), c.out ()),
         new Printer (c.in (), "--> ", "\n")
       }
     ).run ();
 
   }
 
 }
 
Author:
P.H. Welch and P.D. Austin
  • Constructor Details

    • Xor

      public Xor(ChannelInput in1, ChannelInput in2, ChannelOutput out)
      Construct a new Xor process with the input Channels in1 and in2 and the output Channel out. The ordering of the Channels in1 and in2 make no difference to the functionality of this process.
      Parameters:
      in1 - The first input Channel
      in2 - The second input Channel
      out - The output Channel
  • Method Details

    • run

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