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/*******************************************************************************
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/*******************************************************************************
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 * LogEntry.java
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 * LogEntry.java
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 *
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 *
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 * Holds the LogEntry class, which is a representation of what happened every
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 * Holds the LogEntry class, which is a representation of what happened every
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 * step() in a Scheduler (or derived classes).
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 * during the critical parts of step() in Scheduler-derived classes.
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 *
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 *
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 * Copyright (c) 2006, Ira W. Snyder (devel@irasnyder.com)
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 * Copyright (c) 2006, Ira W. Snyder (devel@irasnyder.com)
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 *
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to deal
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 * of this software and associated documentation files (the "Software"), to deal
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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 * IN THE SOFTWARE.
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 * IN THE SOFTWARE.
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 ******************************************************************************/
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 ******************************************************************************/
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/**
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 * A representation of critical events that happen in Scheduler-derived classes.
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 *
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 * @class CS431 Fall 2006
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 * @author Ira W. Snyder (devel@irasnyder.com)
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 */
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class LogEntry
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public class LogEntry
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{
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{
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    /** Message types that are possible */
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    public static enum MsgType { START, EXPIRE, COMPLETE };
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    public static enum MsgType
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    {
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        /** Represents a Process starting on the CPU */
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        START,
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        /** Represents a Process completing this timeslice on the CPU,
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         * but not being completely finished yet.
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         */
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        EXPIRE,
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        /** Represents a Process completing its execution completely. */
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        COMPLETE
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    };
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    /** The time at which this event happened */
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    public final int time;
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    public final int time;
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    /** The process that caused this event */
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    public final Process proc;
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    public final Process proc;
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    /** The type of message that this event represents */
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    public final MsgType msg;
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    public final MsgType msg;
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    /**
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     * Constructor for the LogEntry class.
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     *
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     * @param proc the Process that caused this event
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     * @param time the time when this event happened
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     * @param msg the type of message that this represents
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     */
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    public LogEntry (Process proc, int time, MsgType msg)
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    public LogEntry (Process proc, int time, MsgType msg)
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    {
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    {
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        this.time = time;
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        this.time = time;
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        this.proc = proc;
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        this.proc = proc;
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        this.msg  = msg;
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        this.msg  = msg;
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    }
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    }
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    /**
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     * Convert this LogEntry to a String for printing.
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     *
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     * @return the String representation of this LogEntry
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     */
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    public String toString ()
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    public String toString ()
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    {
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    {
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        String action = new String ("invalid");
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        String action = new String ("invalid");
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        switch (msg)
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        switch (msg)