进程模拟view.cpp

用VC开发的操作系统的进程模拟实验

// 进程模拟View.cpp : implementation of the CMyView class
//

#include "stdafx.h"
#include "进程模拟.h"

#include "进程模拟Doc.h"
#include "进程模拟View.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMyView

IMPLEMENT_DYNCREATE(CMyView, CView)

BEGIN_MESSAGE_MAP(CMyView, CView)
	//{{AFX_MSG_MAP(CMyView)
	ON_COMMAND(ID_MENUITEM_startprogram, OnMENUITEMstartprogram)
	ON_WM_KEYDOWN()
	ON_WM_TIMER()
	ON_MESSAGE(WM_MANAGEPROCESS, OnManageProcess)
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyView construction/destruction

CMyView::CMyView()
{
	// TODO: add construction code here
     m_start=false;
}

CMyView::~CMyView()
{
}

BOOL CMyView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CMyView drawing

void CMyView::OnDraw(CDC* pDC)
{
	CMyDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	OutputProcessState(pDC);
	pDC->MoveTo(318,25);
	pDC->LineTo(318,500);
	pDC->MoveTo(0,25);
	pDC->LineTo(800,25);
	// TODO: add draw code for native data here
}

/////////////////////////////////////////////////////////////////////////////
// CMyView printing

BOOL CMyView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CMyView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CMyView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CMyView diagnostics

#ifdef _DEBUG
void CMyView::AssertValid() const
{
	CView::AssertValid();
}

void CMyView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CMyDoc* CMyView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CMyDoc)));
	return (CMyDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMyView message handlers

void CMyView::OnMENUITEMstartprogram() 
{
	// TODO: Add your command handler code here
	//设置时钟//设时间片
	SetTimer(0,400,NULL);//设置200ms的时间间隔
	m_scheme.OninitScheme();//初始化邻接表
	m_start=true;
}

void CMyView::OutputProcessState(CDC *pDC)
{
	
	m_scheme.Refresh();
 //输出运行队列
     if(m_scheme.m_Queue[1].m_ProcessNum==0)
	 {
	pDC->TextOut(0,0,"cpu 处于空闲状态");

//	Invalidate();//更新客户区
	 }
     else
	 { 
		 CString str1,str2;
		 str2.Format("正在运行的进程的ID号＝%d 优先级%d",m_scheme.m_Queue[1].next->m_processID,m_scheme.m_Queue[1].next->m_PRI);
		 pDC->TextOut(0,0,str2);
	 }
   int         row=30;
   CProcess    *p;
   CString     s;
   int         pn=1;
   if(m_scheme.m_Queue[2].m_ProcessNum==0)
   {
     pDC->TextOut(0,30,"就绪队列为空");
   }
   else
   {   
       pDC->TextOut(0,30,"就绪队列中各进程如下:");
	  
	 
	   p=m_scheme.m_Queue[2].next;
	  while(p!=NULL)
		  {
         s.Format("第%d个进程ID号%d  优先级%d 生命周期%d毫秒",pn++,p->m_processID,p->m_PRI,p->m_time);
		 pDC->TextOut(0,row+=20,s);
		 p=p->next;
	   }
	   
   }
   
  s="";
  row=10;
if(m_scheme.m_Queue[3].m_ProcessNum==0)
   {
     pDC->TextOut(320,row+=20,"阻塞队列为空");
   }
   else
   {   
       pDC->TextOut(320,row+=20,"阻塞队列中各进程如下:");
	   pn=1;
	   p=m_scheme.m_Queue[3].next;
	   while(p!=NULL)
	   {
         s.Format("第%d个进程的ID号＝%d   优先级%d 生命周期%d毫秒",pn++,p->m_processID,p->m_PRI,p->m_time);
		 pDC->TextOut(320,row+=20,s);
		 p=p->next;
	   }
	   
   }

}

void CMyView::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) 
{
	// TODO: Add your message handler code here and/or call default
	if((nChar==VK_RETURN)&&(m_start))
	{
		m_scheme.CreateProcess();
		Invalidate();
		
	}
	if(nChar==VK_F1)
	{
	PostMessage(WM_MANAGEPROCESS,0,0);
		//m_scheme.DeadProcess();
	   // Invalidate(); 
	}
	CView::OnKeyDown(nChar, nRepCnt, nFlags);
}

void CMyView::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	//本函数功能说明 系统每隔200毫秒后调用此函数，因此在此添加进程调度
	//时间片到，提高就绪队列的优先级
	CProcess *p;
	p=m_scheme.m_Queue[2].next;
	while(p!=NULL)
	{
		p->m_PRI+=1;
		p=p->next;
	}
    //从运行队列中调出正在运行的进程
	p=m_scheme.AttemperOutProcess(1);
	//把调出的进程插入到就绪队列中
	m_scheme.InsertProcess(2,p);
	//更新邻接表
	m_scheme.Refresh();
	
    //进程调度完毕，
	
	//cpu转入进程处理
	if(m_scheme.m_Queue[1].next!=NULL)
	PostMessage(WM_MANAGEPROCESS,0,0);
    Invalidate();
	CView::OnTimer(nIDEvent);
}
void CMyView::OnManageProcess()
{
	//进程在此运行
	m_scheme.m_Queue[1].next->m_time=m_scheme.m_Queue[1].next->m_time-400;
	//进程处理结束，进程死亡
	if(m_scheme.m_Queue[1].next->m_time<0)
	{
	  m_scheme.DeadProcess();
	  Invalidate();
	}
}