操作系统实验-CPU进程调度和内存分配 - java版 (3)

{

ProcessPCB stu_Item = (ProcessPCB)iterator1.next(); itemsProperties[i++] = stu_Item.toString(); }

return itemsProperties; }

public Iterator iterator() { return this.PCBItems.iterator(); } }

MemoryRecords.java package src;

import java.util.ArrayList; import java.util.Iterator;

public class MemoryRecords implements Iterable { private ArrayList memoryItems;

public Iterator iterator() { // TODO Auto-generated method stub return this.memoryItems.iterator(); }

public ArrayList getMemoryItems() { return this.memoryItems; }

public MemoryRecords() {

this.memoryItems = new ArrayList(); }

public void addItem(MemoryItem newMemoryItem) { this.memoryItems.add(newMemoryItem); }

public void removeItem(MemoryItem momoryItem) { this.memoryItems.remove(momoryItem); }

public MemoryItem getMomoryItem(MemoryItem item) { for(MemoryItem mItem : this.memoryItems) { if(mItem.equals(item)) { return mItem; } }

return null; }

public MemoryItem getMemoryItem(int base) { for(MemoryItem mItem : this.memoryItems) { if(mItem.getMemoryBase() == base) { return mItem; } }

return null;

}

public int getNumberOfItems() { return this.memoryItems.size(); }

public String[] getItemsProperties() {

String itemsProperties[] = new String[getNumberOfItems()]; int i=0;

for(Iterator iterator1 = this.memoryItems.iterator(); iterator1.hasNext(); ) { MemoryItem mmItem = (MemoryItem) iterator1.next(); itemsProperties[i++] = mmItem.toString();//???? }

//System.out.println(itemsProperties + \ if(itemsProperties == null) { itemsProperties[0] = \ \ }

return itemsProperties; } }

SingleCPUSchedulingGUI001.Java

import java.util.*; import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import javax.swing.event.*;

import src.SingleCPUSchedulingGUI001.AddToBAKListener; import src.SingleCPUSchedulingGUI001.AddToReadyListener; import src.SingleCPUSchedulingGUI001.RemoveListener; import src.SingleCPUSchedulingGUI001.ResetListener;

import src.SingleCPUSchedulingGUI001.ResetSystemListener; import src.SingleCPUSchedulingGUI001.StartSystemListener; import src.SingleCPUSchedulingGUI001.SuspendListener; import src.SingleCPUSchedulingGUI001.SystemPauseListener; import src.SingleCPUSchedulingGUI001.UmountListener; import src.SingleCPUSchedulingGUI001.priotiryListener; import src.SingleCPUSchedulingGUI001.timeslicListener;

import java.io.*; import java.text.*;

public class SingleCPUSchedulingGUI001 extends JFrame {

private int systemStatues; //注意static 属性

/*define 0--system prepare status--system reset and re-prepare 1--system start 2--system pause 3--system stop*/

/* Standar error stream */

static private PrintWriter stdErr = new PrintWriter(System.err, true);

static private int WIDTH = 600, HEIGHT = 700; // the size of the Frame 主面板

/* 各列表对应的面板规格*/

/* 对应各名词释义 backupBAK 后备 ready 就绪 suspend 挂起 memory内存 */ static private int BackupBAK_CELL_SIZE = 250, BackupBAK_LIST_ROWS = 10; //后备队列 static private int Suspend_CELL_SIZE = 250, Suspend_LIST_ROWS = 10; //挂起队列

static private int Ready_CELL_SIZE = 200, Ready_LIST_ROWS = 6; //就绪队列 static private int CPU_ROWS = 10, CPU_COLS = 22; //CPU面板 static private int STATUS_ROWS = 8, STATUS_COLS = 30; //系统状态面板 private int timeslice = 1; //设置时间片大小

private int systemStatus=0; //设置系统状态 0——系统预备状态，等待开始，1——系统运行状态，2——系统暂停状态

static private int TOTAL__TEXTFIELD_SIZE = 10; // Size total text field 记录各队列元素个数

private JList backupList, suspendList, readyList; //各队列相对应的数组列表 // 进程添加框中的\添加至后备队列\，\添加至就绪队列\，\重置\ private JButton addToBAKButton, addToReadyButton, resetButton; //就绪队列框中的\挂起\，挂起队列框中的\解挂\，\删除\ private JButton suspendButton, umountButton, removeButton; //Status面板中的\启动系统\，\重置系统\

private JButton startButton, pauseButton, resetSyatemButton; //优先级和时间片单选钮及时间片显示框 private JRadioButton priorityJRB, timesliceJRB; private JLabel timesliceSizeLabel; private JTextField timesliceJtf;

//后备面板、进程添加面板、挂起面板、内存面板

private JPanel backupBAKPanel, PCBItemPanel, suspendedPanel; //后备队列、挂起队列元素总数标签 private JLabel backupTotalLabel, suspendTotalLabel;

//进程信息标签 进程编号PID,所需运行时间requiredTime,优先级priority,当前状态statues,内存中的基址base,所需内存大小limit

private JLabel PIDLabel, requiredTimeLabel, priorityLabel, statuesLabel; //后备队列、挂起队列元素总数文本框（不可编辑） private JTextField backupTotalTextField, suspendTotalTextField;

//进程信息文本框 PID(可编辑),requiredTime(可编辑),priority(可编辑),status(不可编辑),base(不可编辑),limit(可编辑)

private JTextField PIDTextField, requiredTimeTextField, priorityTextField, statusTextField;

//CPU状态显示文本域(不可编辑)，status信息文本域(用于现实程序每一步的操作和影响，不可编辑)

private JTextArea CPUTextArea, statuesTextArea;

//后备队列PCB数组,就绪、挂起，——内存（可分分区表） PCBRecords backupPCB, readyPCB, suspendedPCB;

public static void main(String[] args) throws IOException { // TODO Auto-generated method stub new SingleCPUSchedulingGUI001().initFrame(); }

public void initFrame() { backupList = new JList(); backupList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); backupList.setVisibleRowCount(BackupBAK_LIST_ROWS); backupList.setFixedCellWidth(BackupBAK_CELL_SIZE); suspendList = new JList(); suspendList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); suspendList.setVisibleRowCount(Suspend_LIST_ROWS); suspendList.setFixedCellWidth(Suspend_CELL_SIZE); readyList = new JList(); readyList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); readyList.setVisibleRowCount(Ready_LIST_ROWS); readyList.setFixedCellWidth(Ready_CELL_SIZE); suspendButton = new JButton(\

addToBAKButton = new JButton(\ addToReadyButton = new JButton(\ resetButton = new JButton(\ umountButton = new JButton(\ removeButton = new JButton(\ startButton = new JButton(\ pauseButton = new JButton(\ resetSyatemButton = new JButton(\ priorityJRB = new JRadioButton(\ timesliceJRB = new JRadioButton(\ backupTotalLabel = new JLabel(\ backupTotalTextField = new JTextField(\ backupTotalTextField.setEditable(false); suspendTotalLabel = new JLabel(\ suspendTotalTextField = new JTextField(\ suspendTotalTextField.setEditable(false); timesliceSizeLabel = new JLabel(\ timesliceJtf = new JTextField(\ timesliceJtf.setEditable(true); CPUTextArea = new JTextArea(CPU_ROWS, CPU_COLS); CPUTextArea.setEditable(false); statuesTextArea = new JTextArea(STATUS_ROWS, STATUS_COLS); statuesTextArea.setEditable(false);

/* north panel*/

// JPanel northPanel = new JPanel(new BorderLayout()); JPanel northPanel = new JPanel(new GridLayout(1, 3)); // JPanel north = new JPanel(new BorderLayout());

// ProcessPCB item information Panel PCBItemPanel = new JPanel(new BorderLayout()); PCBItemPanel.setBorder( BorderFactory.createTitledBorder(\ JPanel PCBItemButtonJPanel = new JPanel(new GridLayout(3, 1)); PCBItemButtonJPanel.add(addToBAKButton); PCBItemButtonJPanel.add(addToReadyButton); PCBItemButtonJPanel.add(resetButton); PCBItemPanel.add(this.initPCBItemPanel(), BorderLayout.CENTER); PCBItemPanel.add(PCBItemButtonJPanel, BorderLayout.SOUTH);

//backupBAKList Panel backupBAKPanel = new JPanel(new BorderLayout()); backupBAKPanel.setBorder(BorderFactory.createTitledBorder(\

JPanel backupTotalPAnel = new JPanel(); backupTotalPAnel.add(backupTotalLabel); backupTotalPAnel.add(backupTotalTextField); backupBAKPanel.add ( new JScrollPane(backupList, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED), BorderLayout.CENTER);

backupBAKPanel.add(backupTotalPAnel, BorderLayout.SOUTH);

// north.add(backupBAKPanel, BorderLayout.WEST); // north.add(PCBItemPanel, BorderLayout.CENTER);

// SuspendList Panel

suspendedPanel = new JPanel(new BorderLayout());

suspendedPanel.setBorder(BorderFactory.createTitledBorder(\

JPanel suspendedTotalPAnel = new JPanel(); suspendedTotalPAnel.add(suspendTotalLabel); suspendedTotalPAnel.add(suspendTotalTextField);

JPanel suspendComponentPanel = new JPanel(new GridLayout(1, 2)); suspendComponentPanel.add(umountButton); suspendComponentPanel.add(removeButton);

suspendedPanel.add (suspendedTotalPAnel, BorderLayout.NORTH); suspendedPanel.add ( new JScrollPane(suspendList, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED), BorderLayout.CENTER);

suspendedPanel.add(suspendComponentPanel, BorderLayout.SOUTH);

// northPanel.add(north, BorderLayout.CENTER);

// northPanel.add(suspendedPanel, BorderLayout.EAST); northPanel.add(backupBAKPanel); northPanel.add(PCBItemPanel); northPanel.add(suspendedPanel); /* center Panel*/

JPanel centrelPanel = new JPanel(new BorderLayout()); // JPanel centrelPanel = new JPanel(new GridLayout(1, 3));

// readyList panel

JPanel readyListPanel = new JPanel(new BorderLayout());

readyListPanel.setBorder(BorderFactory.createTitledBorder(\ readyListPanel.add ( new JScrollPane(readyList, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED));//, BorderLayout.CENTER

readyListPanel.add (suspendButton, BorderLayout.SOUTH); // CPU panel

JPanel CPUPanel = new JPanel();

CPUPanel.setBorder(BorderFactory.createTitledBorder(\ CPUPanel.add (new JScrollPane(CPUTextArea, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED));

centrelPanel.add(readyListPanel, BorderLayout.WEST); centrelPanel.add(CPUPanel, BorderLayout.CENTER);

/*statues panel*/

JPanel southPanel = new JPanel(new BorderLayout());

JPanel statuesPanel = new JPanel();

statuesPanel.setBorder(BorderFactory.createTitledBorder(\ statuesPanel.add (new JScrollPane(statuesTextArea,

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