yxtdlg.cpp

一个用于演示操作系统作业调度的模拟程序

// yxtDlg.cpp : implementation file
//

#include "stdafx.h"
#include "yxt.h"
#include "yxtDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CYxtDlg dialog

void CYxtDlg::CFifo()
{
	int sign=0;
	int pointer=0;
    CClientDC dc1(this);
//if(sel_combo2+3<k_edit1)//内存页面小于页面访问数，需要进行换页处理
//{

	if(sel_combo2==0)
	{
		int memory[3];
	
		for(int k=0;k<k_edit1;k++)
		{
			sign=0;
			for(int p=0;p<sel_combo2+3;p++)
			{
			if(page[k]==memory[p])//要访问的页面已经在内存中
				sign=1;
			}
			if(sign==1)
			;//如果要访问的页面已经在内存中，什么都不做
			else
			{
			memory[pointer]=page[k];
			pointer=(pointer+1)%(sel_combo2+3);
			page_change++;
			}
			for(int j=0;j<3;j++)
			{
		
			dc1.SetBkColor(RGB(255,255,255));
			dc1.TextOut(50+20*k,250+15*j,memory[j]);
			dc1.SetTextColor(RGB(0,0,0));
		
			}
		}//for
		
	}//if
	/////////////////////////////////*******************/////////////////////
	else if(sel_combo2==1)
	{
		int memory[4];
		for(int k=0;k<k_edit1;k++)
		{
			sign=0;
			for(int p=0;p<sel_combo2+3;p++)
			{
			if(page[k]==memory[p])//要访问的页面已经在内存中
				sign=1;
			}
			if(sign==1)
			;//如果要访问的页面已经在内存中，什么都不做
			else
			{
			memory[pointer]=page[k];
			pointer=(pointer+1)%(sel_combo2+3);
			page_change++;
			}
			for(int j=0;j<4;j++)
			{
		
			dc1.SetBkColor(RGB(255,255,255));
			dc1.TextOut(50+20*k,250+15*j,memory[j]);
			dc1.SetTextColor(RGB(0,0,0));
		
			}
		}//for
		
	}//if
	else if(sel_combo2==2)
	{
		int memory[5];
		for(int k=0;k<k_edit1;k++)
		{
			sign=0;
			for(int p=0;p<sel_combo2+3;p++)
			{
			if(page[k]==memory[p])//要访问的页面已经在内存中
				sign=1;
			}
			if(sign==1)
			;//如果要访问的页面已经在内存中，什么都不做
			else
			{
			memory[pointer]=page[k];
			pointer=(pointer+1)%(sel_combo2+3);
			page_change++;
			}
			for(int j=0;j<5;j++)
			{
		
			dc1.SetBkColor(RGB(255,255,255));
			dc1.TextOut(50+20*k,250+15*j,memory[j]);
			dc1.SetTextColor(RGB(0,0,0));
		
			}
		}//for
		
	}//if
//}//if
	if(page_change>=(sel_combo2+3))
page_change=page_change-(sel_combo2+3);
else 
page_change=0;
char buffer[16];
wsprintf(buffer,"%d",page_change);

m_edit3.SetWindowText(buffer);
	
}

void CYxtDlg::CLru()
{
	CClientDC dc1(this);
	int sign=0;
	int pointer=0;
	int MaxTime=0;
	int index=0;
	//////////////////***************************************/////////////////////
	if(sel_combo2==0)
	{
		char memory[3];
		int time[3];
		//memory[0]=page[0];
		/*for(int i=0;i<3;i++)
		{
			memory[i]=page[i];
			time[i]=3-i;
		
		
		for(int j=0;j<3;j++)
		{
		
	    dc1.SetBkColor(RGB(255,255,255));
	    dc1.TextOut(50+20*i,250+15*j,memory[j]);
	    dc1.SetTextColor(RGB(0,0,0));
		
		}
		}
		for(int k=sel_combo2+3;k<k_edit1;k++)//对要访问的页面
		*/
		for(int k=0;k<k_edit1;k++)
		{
			sign=0;
			
			for(int p=0;p<sel_combo2+3;p++)
			{
				
				time[p]++;
				if(page[k]==memory[p])//要访问的页面已经在内存中
				{	sign=1;
				    
					time[p]=1;//访问时间归一
				}
				
			}
			if(sign==1)
			;
			//如果要访问的页面已经在内存中，
			else//如果不在，找到最大的time[p],置换
			{
				index++;
				if(index-1<sel_combo2+3)
				{
					memory[index-1]=page[k];
					for(int n=0;n<index;n++)
						time[n]=index-n;

				}
				else
				{
				 MaxTime=time[0];
			    for(int i=0;i<sel_combo2+3;i++)
				{
				
				 if(time[i]>MaxTime)
				 {
					 MaxTime=time[i];
				     pointer=i;
				 }
				}
				memory[pointer]=page[k];
				time[pointer]=1;//刚置换进来时间设为1；
				page_change++;
				pointer=0;
				}
			}
			
			for(int j=0;j<3;j++)
		{
		
	    dc1.SetBkColor(RGB(255,255,255));
	    dc1.TextOut(50+20*k,250+15*j,memory[j]);
	    dc1.SetTextColor(RGB(0,0,0));
		
		}
		}
	}
	//////////////////***************************************/////////////////////
	if(sel_combo2==1)
	{
		char memory[4];
		int time[4];
	
		for(int k=0;k<k_edit1;k++)
		{
			sign=0;
			
			for(int p=0;p<sel_combo2+3;p++)
			{
				
				time[p]++;
				if(page[k]==memory[p])//要访问的页面已经在内存中
				{	sign=1;
				    
					time[p]=1;//访问时间归一
				}
				
			}
			if(sign==1)
			;
			//如果要访问的页面已经在内存中，
			else//如果不在，找到最大的time[p],置换
			{
				index++;
				if(index-1<sel_combo2+3)
				{
					memory[index-1]=page[k];
					for(int n=0;n<index;n++)
						time[n]=index-n;

				}
				else
				{
				 MaxTime=time[0];
			    for(int i=0;i<sel_combo2+3;i++)
				{
				
				 if(time[i]>MaxTime)
				 {
					 MaxTime=time[i];
				     pointer=i;
				 }
				}
				memory[pointer]=page[k];
				time[pointer]=1;//刚置换进来时间设为1；
				page_change++;
				pointer=0;
				}
			}
			
			for(int j=0;j<4;j++)
		{
		
	    dc1.SetBkColor(RGB(255,255,255));
	    dc1.TextOut(50+20*k,250+15*j,memory[j]);
	    dc1.SetTextColor(RGB(0,0,0));
		
		}
		}
	}
	//////////////////***************************************/////////////////////
		if(sel_combo2==2)
	{
		char memory[5];
		int time[5];
		//for(int p=0;p<3;p++)
			//memory[p]="0";
		for(int k=0;k<k_edit1;k++)
		{
			sign=0;
			
			for(int p=0;p<sel_combo2+3;p++)
			{
				
				time[p]++;
				if(page[k]==memory[p])//要访问的页面已经在内存中
				{	sign=1;
				    
					time[p]=1;//访问时间归一
				}
				
			}
			if(sign==1)
			;
			//如果要访问的页面已经在内存中，
			else//如果不在，找到最大的time[p],置换
			{
				index++;
				if(index-1<sel_combo2+3)
				{
					memory[index-1]=page[k];
					for(int n=0;n<index;n++)
						time[n]=index-n;

				}
				else
				{
				 MaxTime=time[0];
			    for(int i=0;i<sel_combo2+3;i++)
				{
				
				 if(time[i]>MaxTime)
				 {
					 MaxTime=time[i];
				     pointer=i;
				 }
				}
				memory[pointer]=page[k];
				time[pointer]=1;//刚置换进来时间设为1；
				page_change++;
				pointer=0;
				}
			}
			
			for(int j=0;j<5;j++)
		{
		
	    dc1.SetBkColor(RGB(255,255,255));
	    dc1.TextOut(50+20*k,250+15*j,memory[j]);
	    dc1.SetTextColor(RGB(0,0,0));
		
		}
		}
	}
char buffer[16];
wsprintf(buffer,"%d",page_change);
m_edit3.SetWindowText(buffer);

	//CString str;
	//str="请点击运行按钮单步执行！物品大小会随机生成!";
   /* char buffer1[16];
	wsprintf(buffer,"%d",memory[0]);
	dc1.SetBkColor(RGB(255,255,255));
	dc1.TextOut(200,200,buffer);
	dc1.SetTextColor(RGB(0,0,0));*/
}

CYxtDlg::CYxtDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CYxtDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CYxtDlg)
	m_edit1 = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CYxtDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CYxtDlg)
	DDX_Control(pDX, IDC_EDIT1, m_edit11);
	DDX_Control(pDX, IDC_EDIT3, m_edit3);
	DDX_Control(pDX, IDC_COMBO2, m_combo2);
	DDX_Control(pDX, IDC_COMBO1, m_combo1);
	DDX_Text(pDX, IDC_EDIT1, m_edit1);
	DDV_MaxChars(pDX, m_edit1, 20);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CYxtDlg, CDialog)
	//{{AFX_MSG_MAP(CYxtDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_EN_CHANGE(IDC_EDIT1, OnChangeEdit1)
	ON_BN_CLICKED(IDC_BUTTON1, OnRun)
	ON_CBN_SELCHANGE(IDC_COMBO1, OnSelchangeCombo1)
	ON_CBN_SELCHANGE(IDC_COMBO2, OnSelchangeCombo2)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CYxtDlg message handlers

BOOL CYxtDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	k_edit1=0;
	sel_combo1=0;
	sel_combo2=0;
	page_change=0;
	//for(int i=0;i<Max_Page;i++)
		
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CYxtDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CYxtDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CYxtDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CYxtDlg::OnChangeEdit1() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
    page[k_edit1]=m_edit1.GetAt(k_edit1);
	k_edit1++;
}


void CYxtDlg::OnRun() 
{
	// TODO: Add your control notification handler code here
	if (sel_combo1==0)
		CFifo();
	else if(sel_combo1==1)
		CLru();

		
}

void CYxtDlg::OnSelchangeCombo1() 
{
	// TODO: Add your control notification handler code here
	sel_combo1=m_combo1.GetCurSel();
}

void CYxtDlg::OnSelchangeCombo2() 
{
	// TODO: Add your control notification handler code here
		sel_combo2=m_combo2.GetCurSel();
}