内存分配实验报告模板

1、河北建筑工程学院实验报告年 月 日班级物联142姓名孙胜杰学号20143260218评分实验台号同组人员实验名称可变分区存储管理的内存分配算法 模拟实现-首次适应算法课程 名称操作系统仪器名称型号规格仪器编号装有eclipse和Java环境的PC机一台一实验目的1深刻理解可变分区的首次适应算法。2掌握可变分区存储管理方式，使用可变分区的首次适应算法进行内存分配二实验设备PC机三实验内容在Java开发环境下模拟可变分区的内存分配，使用首次适应算法，内存分配四程序的主要代码package首次适应算法；import java.awt.Color;import java.awt.F ont;impor

2、t java.awt.GridLayout;import java.awt.Label;import java.awt.eve nt.Acti on Eve nt;import java.awt.eve nt.Actio nListe ner;import javax.swi ng.J Butt on;import javax.sw in g.JFrame;import javax.sw in g.JLabel;import javax.swi ng.J Optio nPane;import javax.swi ng.JPan el;import javax.sw in g.JTextArea

3、;import javax.sw in g.JTextField;import javax.swing.SwingConstants;import javax.swing.GroupLayout;import javax.swing.GroupLayout.Alignment;import javax.swing.LayoutStyle.ComponentPlacement;public class FFMethod extends JFrame /*首次适应算法*/private static final long serialVersionUID = 1889348358576796305

4、L;/定义 30 个进程块/申请大小、释放/内存分配情况protected JTextField blank0,blank1,blank2,blank3, blank4,blank5,blank6,blank7, blank8,blank9,blank10,blank11, blank12,blank13,blank14,blank15, blank16,blank17, blank18,blank19,blank20,blank21,blank22,blank23, blank24,blank25,blank26,blank27, blank28,blank29,blank30,blank3

5、1;protected JTextField applyMemTF,releaseMemTF; 块号的编辑框protected JTextArea showMemStatusTF; 显示框/表示进程块/表示存储起始地址/表示存储进程长度protected JButton applyMemButton,releaseMemButton; /定义申请大小、释放 块号和清空内存三个按钮int processBlock = new int32;int processBlockStartAdd = new int32; int processBlockLength = new int32;public

6、FFMethod() setForeground(Color.BLACK); setResizable(false);getContentPane().setBackground(Color.CYAN); setBackground(Color.WHITE);setFo nt(n ew Fo nt( 黑体,Fon t.PLAIN, 15);setTitle(u64CDu4F5Cu7CFBu7EDFu2014u2014u9996u6B21u9002u5E9 4u7B97u6CD5);setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);JPanel p5

7、= new JPanel();p5.setBackground(Color.YELLOW);Font font1 = new Font(SansSerif,Font.BOLD,16);GroupLayout groupLayout = new GroupLayout(getContentPane(); groupLayout.setHorizontalGroup(groupLayout.createParallelGroup(Alignment.LEADING) .addGroup(groupLayout.createSequentialGroup() .addContainerGap().a

8、ddComponent(p5, GroupLayout.PREFERRED_SIZE, 612, GroupLayout.PREFERRED_SIZE).addContainerGap(589, Short.MAX_VALUE) );groupLayout.setVerticalGroup( groupLayout.createParallelGroup(Alignment.LEADING) .addGroup(groupLayout.createSequentialGroup() .addContainerGap().addComponent(p5, GroupLayout.PREFERRE

9、D_SIZE,GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE) .addContainerGap(81, Short.MAX_VALUE);JPanel p3 = new JPanel(new GridLayout(11,1,20,0); p3.setBackground(Color.YELLOW);JLabel label = new JLabel(u5185u5B58u5BB9u91CF32); label.setHorizontalAlignment(SwingConstants.LEFT); p3.add(label);p3.a

10、dd(blank0 = new JTextField(3);p3.add(blank1 = new JTextField(3);p3.add(blank2 = new JTextField(3);p3.add(blank3 = new JTextField(3);p3.add(blank4 = new JTextField(3);p3.add(blank5 = new JTextField(3);p3.add(blank6 = new JTextField(3);p3.add(blank7 = new JTextField(3);p3.add(blank8 = new JTextField(3

11、);p3.add(blank9 = new JTextField(3);p3.add(blank10 = new JTextField(3);p3.add(blank11 = new JTextField(3);p3.add(blank12 = new JTextField(3);p3.add(blank13 = new JTextField(3);p3.add(blank14 = new JTextField(3);p3.add(blank15 = new JTextField(3);p3.add(blank16 = new JTextField(3);p3.add(blank17 = ne

12、w JTextField(3);p3.add(blank18 = new JTextField(3);p3.add(blank19 = new JTextField(3);p3.add(blank20 = new JTextField(3);p3.add(blank21 = p3.add(blank22 = p3.add(blank23 = p3.add(blank24 = p3.add(blank25 = p3.add(blank26 = p3.add(blank27 = p3.add(blank28 = p3.add(blank29 = p3.add(blank30 = p3.add(bl

13、ank31 =new JTextField(3); new JTextField(3); new JTextField(3); new JTextField(3); new JTextField(3); new JTextField(3); new JTextField(3); new JTextField(3); new JTextField(3); new JTextField(3); new JTextField(3);JPanel p1 = new JPanel(new GridLayout(3,2,5,2); p1.setBackground(Color.YELLOW);p1.add

14、(applyMemButton = new JButton(u7533u8BF7uFF08u5757u6570uFF09); applyMemButton.setBackground(Color.BLUE);p1.add(applyMemTF = new JTextField(3); applyMemTF.setToolTipText();p1.add(releaseMemButton = new JButton(u91CAu653EuFF08u5757u53F7uFF09); releaseMemButton.setBackground(Color.BLUE); p1.add(release

15、MemTF = new JTextField(3);p1.add(new Label(tu5185u5B58u5206u914Du60C5u51B5uFF1A);JPanel p2 = new JPanel(); p2.setBackground(Color.YELLOW); p2.add(showMemStatusTF = new JTextArea(); GroupLayout gl_p2 = new GroupLayout(p2); gl_p2.setHorizontalGroup(gl_p2.createParallelGroup(Alignment.LEADING) .addGrou

16、p(gl_p2.createSequentialGroup().addComponent(p1, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE).addGap(28) .addGroup(gl_p2.createSequentialGroup().addComponent(showMemStatusTF, GroupLayout.DEFAULT_SIZE, 265, Short.MAX_V ALUE).addContainerGap(); gl_p2.setVerticalGro

17、up(gl_p2.createParallelGroup(Alignment.LEADING) .addGroup(gl_p2.createSequentialGroup().addComponent(p1, GroupLayout.PREFERRED_SIZE, 131,GroupLayout.PREFERRED_SIZE) .addPreferredGap(ComponentPlacement.RELATED) .addComponent(showMemStatusTF,GroupLayout.DEFAULT_SIZE, 175, Short.MAX_V ALUE);JButton but

18、ton = new JButton(u6E05u7A7Au5185u5B58); button.setBackground(Color.RED);button.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) for(int cc = 0;cc 32 | n 0)JOptio nPan e.showMessageDialog( null,进程大小违规，请重新输 入！);outher:/向内存中添加进程for(int i = 0;i 32; i+ )/向内存中添加进程if(proce

19、ssBlocki = 0 & Sum(processBlock,i,n) = 0) processBlockStartAddi = i;/存储起始地址processBlockLengthi = n;/存储进程长度/找到合适的位for(int ss = i;ss (i + n);ss+)processBlockss = 1;置，置 1 colorr();JOptio nPan e.showMessageDialog( null成功分配到内存! );showMemStatusTF.appe nd块号:+ processBlockStartAddi + 起始位置 : +processBlockSta

20、rtAddi + 大小 : + processBlockLengthi +n);break outher; if(i = 31)JOptio nPan e.showMessageDialog( null,内存不足，请等 待.);break outher; );/释放内存按钮监听 releaseMemButton.addActionListener(new ActionListener() public void actionPerformed(ActionEvent e) int m = In teger.parseI nt(releaseMemTF.getText();进程块的起始位置 和长

21、度for(int ff = m;ff (m + processBlockLengthm);ff+) processBlockff = 0;processBlockStartAddm = 0; processBlockLengthm = 0;colorr();showMemStatusTF.setText();for(int bb = 0;bb 10; bb+) if(processBlockLengthbb != 0) showMemStatusTF. appe nd块号:+ processBlockbb + 起始位置 : +processBlockStartAddbb + 大小:+ proc

22、essBlockLengthbb + n); );GroupLayout gl_p5 = new GroupLayout(p5); gl_p5.setHorizontalGroup(gl_p5.createParallelGroup(Alignment.LEADING).addGroup(gl_p5.createSequentialGroup().addGap(20).addComponent(p2, GroupLayout.PREFERRED_SIZE,GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE) .addPreferredGap

23、(ComponentPlacement.UNRELATED) .addComponent(p3, GroupLayout.PREFERRED_SIZE, 273,Short.MAX_V ALUE).addGap(26);gl_p5.setVerticalGroup(gl_p5.createParallelGroup(Alignment.LEADING).addGroup(gl_p5.createSequentialGroup() .addGroup(gl_p5.createParallelGroup(Alignment.LEADING, false).addComponent(p3, Grou

24、pLayout.DEFAULT_SIZE,GroupLayout.DEFAULT_SIZE, Short.MAX_V ALUE).addGroup(gl_p5.createSequentialGroup() .addGap(26) .addComponent(p2,GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE,GroupLayout.PREFERRED_SIZE).addContainerGap(27, Short.MAX_VALUE) );p5.setLayout(gl_p5);getContentPane().setLayout(

25、groupLayout);/判断内存空间是否足够public int Sum(int pp,int mm,int k)int sum = 0;if(mm + k) = 32)for(int zz = mm;zz (mm + k);zz+)sum+=ppzz;else sum = 1;return sum;/内存与 processBlock 数组相对应 ,占用颜色为绿色，空白为蓝色public void colorr()if(processBlock0=1)blank0.setBackground(Color.GREEN); elseblank0.setBackground(Color.WHIT

26、E);if(processBlock1=1)blank1.setBackground(Color.GREEN); elseblank1.setBackground(Color.WHITE);if(processBlock2=1)blank2.setBackground(Color.GREEN); elseblank2.setBackground(Color.WHITE);if(processBlock3=1)blank3.setBackground(Color.GREEN); elseblank3.setBackground(Color.WHITE);if(processBlock4=1)bl

27、ank4.setBackground(Color.GREEN); elseblank4.setBackground(Color.WHITE);if(processBlock5=1)blank5.setBackground(Color.GREEN); elseblank5.setBackground(Color.WHITE);if(processBlock6=1)blank6.setBackground(Color.GREEN); elseblank6.setBackground(Color.WHITE);if(processBlock7=1)blank7.setBackground(Color

28、.GREEN); elseblank7.setBackground(Color.WHITE);if(processBlock8=1)blank8.setBackground(Color.GREEN);else blank8.setBackground(Color.WHITE);if(processBlock9=1)blank9.setBackground(Color.GREEN);elseblank9.setBackground(Color.WHITE);if(processBlock10=1)blank10.setBackground(Color.GREEN); elseblank10.se

29、tBackground(Color.WHITE);if(processBlock11=1)blank11.setBackground(Color.GREEN); elseblank11.setBackground(Color.WHITE);if(processBlock12=1)blank12.setBackground(Color.GREEN); elseblank12.setBackground(Color.WHITE);if(processBlock13=1)blank13.setBackground(Color.GREEN); elseblank13.setBackground(Col

30、or.WHITE);if(processBlock14=1)blank14.setBackground(Color.GREEN); elseblank14.setBackground(Color.WHITE);if(processBlock15=1)blank15.setBackground(Color.GREEN); elseblank15.setBackground(Color.WHITE);if(processBlock16=1)blank16.setBackground(Color.GREEN); elseblank16.setBackground(Color.WHITE);if(pr

31、ocessBlock17=1)blank17.setBackground(Color.GREEN);blank17.setBackground(Color.WHITE);else if(processBlock18=1)blank18.setBackground(Color.GREEN);elseblank18.setBackground(Color.WHITE);if(processBlock19=1)blank19.setBackground(Color.GREEN);elseblank19.setBackground(Color.WHITE);if(processBlock20=1)bl

32、ank20.setBackground(Color.GREEN);elseblank20.setBackground(Color.WHITE);if(processBlock21=1)blank21.setBackground(Color.GREEN);elseblank21.setBackground(Color.WHITE);if(processBlock22=1)blank22.setBackground(Color.GREEN);elseblank22.setBackground(Color.WHITE);if(processBlock23=1)blank23.setBackground(Color.GREEN);elseblank23.setBackground(Color.WHITE);if(processBlock24=1)blank24.setBackground(Color.GREEN);elseblank24.setBackground(Color.WHITE);if(processBlock25=1)blank25.setBackground(Color.GREEN);elseblank25.set