form1.cs

C++编写的模拟银行家算法的实现,内容详细具体,代码清楚易懂,很适合初学者学习

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Threading;

namespace test1
{
    enum _suanfa{N,Y,S,A}
    
    public partial class Form1 : Form
    {

       public prc ps;
       public prc[] tp;
        _suanfa suanfa;
        int ppoint;
        code_window cw;
        Thread new_p;
    
        
        
        

        public Form1()
        {
            InitializeComponent();
            
            cw = new code_window();
            cw.Width = this.Width;
            new_p = new Thread(new ThreadStart(this.ThreadProcSafe));
            new_p.Start();
      
            ps = new prc("系统总资源");
            for (int i = 0; i < 10; i++)
            {
                ps.total[i] = 100;
                ps.have[i] = 100;
                ps.need[i] = 0;
            }
            tp = new prc[50];
            suanfa = _suanfa.N;
            ppoint = 0;

            string[] temp_p = new string[12];
            temp_p[0] = "系统总资源";
            temp_p[1] = "";
            for (int i = 2; i < 12; i++)
            {
                temp_p[i] = "100";
            }
            ListViewItem temp_l = new ListViewItem(temp_p);
            listView1.Items.Add(temp_l);

            temp_p = new string[12];
            temp_p[0] = "系统剩余资源";
            temp_p[1] = "";
            for (int i = 2; i < 12; i++)
            {
                temp_p[i] = "100";
            }
            temp_l = new ListViewItem(temp_p);
            listView1.Items.Add(temp_l);
                                              
            
         }

        private void button1_Click(object sender, EventArgs e)
        {
            progressBar1.Maximum = re_listview_count(2,0);
            cw.clear();
            for (int i = 2; i <= (listView1.Items.Count - 1); i++)
                listView1.Items[i].SubItems[1].Text = "等待";
            progressBar1.Value = 0;

            switch (suanfa)
            {
                case _suanfa.Y: this.timer1.Tick += new System.EventHandler(this.bank);  timer1.Start();
                                button2.Enabled = true;break;
                case _suanfa.S: this.timer1.Tick += new System.EventHandler(this.suiji); timer1.Start();
                                button2.Enabled = true;break; 
                case _suanfa.A: this.timer1.Tick += new System.EventHandler(this.anxu);  timer1.Start();
                                button2.Enabled = true;break;
                case _suanfa.N: MessageBox.Show("请先在左上方选择实验算法!"); break;
            }
            
        }

        
        private void yhj(object sender, EventArgs e)
        {
            this.请选择实验算法ToolStripMenuItem.Text = "银行家算法";
            suanfa = _suanfa.Y;
            
        }

        private void rom(object sender, EventArgs e)
        {
            this.请选择实验算法ToolStripMenuItem.Text = "随机算法";
            suanfa = _suanfa.S;
        }

        private void axfp(object sender, EventArgs e)
        {
            this.请选择实验算法ToolStripMenuItem.Text = "按序分配算法";
            suanfa = _suanfa.A;
        }
        
                
        private void 添加新进程NToolStripMenuItem_Click(object sender, EventArgs e)
        {
            dlg_name dlg1 = new dlg_name();
            dlg1.InitializeComponent();
            dlg1.tb_name_1.Text = "进程"+(ppoint+1).ToString();
            ps.total.CopyTo(dlg1.total,0);
            dlg1.ShowDialog();
            if (dlg1.stat)
            {

                try
                {
                    tp[ppoint] = new prc(dlg1.tb_name_1.Text.ToString());
                }

                catch { MessageBox.Show("SH. is going wrong"); Close(); }



                string[] temp_p = new string[12];
                temp_p[0] = tp[ppoint].readname();
                temp_p[1] = tp[ppoint].readstat();
                for (int i = 2; i < 12; i++)
                {
                    dlg1.res.CopyTo(tp[ppoint].total, 0);
                    temp_p[i] = dlg1.res[i - 2].ToString();
                }
                ListViewItem temp_l = new ListViewItem(temp_p);
                listView1.Items.Add(temp_l);

                label3_ppoint.Text = ((listView1.Items.Count)-2).ToString();
                ppoint++;
            }

        }

        private void 设置系统ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            dlg_system dlg2 = new dlg_system();
            dlg2.ShowDialog();
            dlg2.res.CopyTo(ps.total,0);
            dlg2.res.CopyTo(ps.have, 0);
            for (int j = 0; j < 2; j++)
            for (int i = 0; i < 10; i++)
            {
                
                listView1.Items[j].SubItems[i + 2].Text = dlg2.res[i].ToString();
            }
        }

        private void 全部删除AToolStripMenuItem_Click(object sender, EventArgs e)
        {
            listView1.Items.Clear();
            string[] temp_p = new string[12];
            temp_p[0] = "系统总资源";
            temp_p[1] = "";
            for (int i = 2; i < 12; i++)
            {
                temp_p[i] = "100";
            }
            ListViewItem temp_l = new ListViewItem(temp_p);
            listView1.Items.Add(temp_l);

            temp_p = new string[12];
            temp_p[0] = "系统剩余资源";
            temp_p[1] = "";
            for (int i = 2; i < 12; i++)
            {
                temp_p[i] = "100";
            }
            temp_l = new ListViewItem(temp_p);
            listView1.Items.Add(temp_l);
            
            ppoint = 0;
            label3_ppoint.Text = ((listView1.Items.Count) - 2).ToString();
        }

        private void 删除上个进程DToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (listView1.Items.Count > 2)
            { listView1.Items[listView1.Items.Count - 1].Remove(); ppoint--; }
            else MessageBox.Show("还未加入任何进程");
            label3_ppoint.Text = ((listView1.Items.Count) - 2).ToString();
            
        }

        public Array readprc()
        {
            return ps.total;
        }
           
        private void ThreadProcSafe()
        {
            Point pt = new Point(this.Location.X, this.Location.Y + this.Height);
            cw.Location = pt;
            cw.ShowDialog();
        }

        private void form1_close(object sender, FormClosingEventArgs e)
        {
            timer1.Stop();
            timer1.Dispose();
            new_p.Abort();
            cw.cls();
        }

        private void cw_sh(object sender, EventArgs e)
        {
            cw.cw_sh();
        }

        private void suiji(object sender, EventArgs e)
        {
            int x, y, max,temp_1;
            bool flg=false;
            System.Random ro = new Random();
            max = listView1.Items.Count;

            for (x = 2; x <= max - 1; x++)
            {
                for (y = 2; y <= 11; y++)
                {
                    int temp = Int16.Parse(listView1.Items[x].SubItems[y].Text.ToString());
                    int system_y = Int16.Parse(listView1.Items[1].SubItems[y].Text.ToString());

                    if (temp == 0)
                        continue;
                    else if (temp < 10)
                    {
                        listView1.Items[1].SubItems[y].Text = (system_y - temp).ToString();
                        if (int.Parse(listView1.Items[1].SubItems[y].Text.ToString()) < 0) { flg = true; break; }
                        listView1.Items[x].SubItems[y].Text = "0";
                        if (re_listview_count(x, x) == 0 && listView1.Items[x].SubItems[1].Text != "完成")
                        {
                            for (int m = 2; m < 12; m++)
                                listView1.Items[1].SubItems[m].Text = (Int16.Parse(listView1.Items[1].SubItems[m].Text.ToString()) + tp[x - 2].total[m - 2]).ToString();
                            listView1.Items[x].SubItems[1].Text = "完成";
                        }
                        tp[x - 2].have[y - 2] += temp;
                        if ((progressBar1.Maximum - progressBar1.Value) < temp) progressBar1.Value = progressBar1.Maximum;
                        else progressBar1.Value += temp;
                    }
                    else
                    {
                        temp_1 = temp;
                        temp = ro.Next(0, 10); 
                        listView1.Items[1].SubItems[y].Text = (system_y - temp).ToString();
                        if (int.Parse(listView1.Items[1].SubItems[y].Text.ToString()) < 0) { flg = true; break; }
                        listView1.Items[x].SubItems[y].Text = (Int16.Parse(listView1.Items[x].SubItems[y].Text.ToString()) - temp).ToString();

                        if (re_listview_count(x, x) == 0 && listView1.Items[x].SubItems[1].Text != "完成")
                        {
                            for (int m = 2; m < 12; m++)
                                listView1.Items[1].SubItems[m].Text = (Int16.Parse(listView1.Items[1].SubItems[m].Text.ToString()) + tp[x - 2].total[m - 2]).ToString();
                            listView1.Items[x].SubItems[1].Text = "完成";
                        }
                        tp[x - 2].have[y - 2] += temp;
                        if ((progressBar1.Maximum - progressBar1.Value) < temp) progressBar1.Value = progressBar1.Maximum;
                        else progressBar1.Value += temp;
                    }