Subversion Repositories programming

/*******************************************************************************
 * Process.java
 *
 * Holds the Process class, which holds information about a process.
 *
 * Copyright (c) 2006, Ira W. Snyder (devel@irasnyder.com)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 ******************************************************************************/

/**
 * The Process class. This holds information about a simulated process.
 *
 * @class CS431 Fall 2006
 * @author Ira W. Snyder (devel@irasnyder.com)
 */
public class Process
{
    /** The Process' name */
    public final String name;

    /** The Process' burst time */
    public final int timeslice;

    /** The time when this process entered the run queue */
    public final int entered_at;

    /** The time when this process completed */
    public int finished_at = 0;

    /** The amount of time this Process has left */
    public int time_left;

    /** The amount of time this process spent waiting to execute */
    public int time_wait = 0;

    /**
     * Constructor for the Process class.
     *
     * @param name this Process' name
     * @param timeslice the burst time for this process
     */
    public Process (String name, int timeslice)
    {
        this (name, timeslice, 0);
    }

    /**
     * Constructor for the Process class. This specifies a time
     * at which this process will be added to the run queue in
     * this scheduler.
     *
     * @param name this Process' name
     * @param timeslice the burst time for this process
     * @param add_time the time at which this process will become valid
     */
    public Process (String name, int timeslice, int add_time)
    {
        this.name = name;
        this.timeslice = timeslice;
        this.time_left = timeslice;
        this.entered_at = add_time;
    }

    /**
     * Copy constructor for the Process class.
     *
     * @param p the Process to be copied
     */
    public Process (Process p)
    {
        this.name = new String (p.name);
        this.timeslice = p.timeslice;
        this.entered_at = p.entered_at;
        this.finished_at = p.finished_at;
        this.time_left = p.timeslice;
    }

    /**
     * Convert this Process to a String for printing.
     *
     * @return the String representation of this Process
     */
    public String toString ()
    {
        return name.toString() + " " + timeslice;
    }

    /**
     * Check if this Process is equal to another Process.
     *
     * @param rhs the Process to compare this Process to
     * @return true if these Processes are equal, false otherwise
     */
    public boolean equals (Process rhs)
    {
        return (this.name == rhs.name) && (this.timeslice == rhs.timeslice);
    }
}

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