processview.cpp

这是一个关于操作系统进程调度的实验

// ProcessView.cpp : implementation of the CProcessView class
//

#include "stdafx.h"
#include "Process.h"

#include "ProcessDoc.h"
#include "ProcessView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CProcessView

IMPLEMENT_DYNCREATE(CProcessView, CScrollView)

BEGIN_MESSAGE_MAP(CProcessView, CScrollView)
	//{{AFX_MSG_MAP(CProcessView)
	ON_COMMAND(ID_START, OnStart)
	ON_WM_TIMER()
	ON_WM_DESTROY()
	ON_UPDATE_COMMAND_UI(ID_START, OnUpdateStart)
	ON_COMMAND(ID_Continue, OnContinue)
	ON_COMMAND(ID_STOP, OnStop)
	ON_UPDATE_COMMAND_UI(ID_STOP, OnUpdateStop)
	ON_UPDATE_COMMAND_UI(ID_Continue, OnUpdateContinue)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CProcessView construction/destruction

//const int CProcessView::m_pris[N]={12,15,17,8,19};
//const int CProcessView::m_times[N]={3,6,7,3,8};

CProcessView::CProcessView()
{
	// TODO: add construction code here
	m_proTotal=0;
	n=0;
//	m_line=0;
	m_killTimer=true;
	m_start=false;
	m_queryFlag=false;
}
CProcessView::~CProcessView()
{
}

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

	return CScrollView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CProcessView drawing

void CProcessView::OnDraw(CDC* pDC)
{
	CProcessDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here

	CString str;
	str.Format("第%d时刻进程调度情况:",m_proMoni.m_clock);
	if(m_start)
	{
		pDC->TextOut(50,20,str);
		m_proMoni.Display(pDC);	
		m_proMoni.DisplayRecordInfo(pDC);
	}

}

void CProcessView::OnInitialUpdate()
{
	CScrollView::OnInitialUpdate();

	CSize sizeTotal;
	// TODO: calculate the total size of this view
	sizeTotal.cx = sizeTotal.cy = 5000;
	SetScrollSizes(MM_TEXT, sizeTotal);
}

/////////////////////////////////////////////////////////////////////////////
// CProcessView diagnostics

#ifdef _DEBUG
void CProcessView::AssertValid() const
{
	CScrollView::AssertValid();
}

void CProcessView::Dump(CDumpContext& dc) const
{
	CScrollView::Dump(dc);
}

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

/////////////////////////////////////////////////////////////////////////////
// CProcessView message handlers
PCB* CProcessView::CreatePCB()
{
	PCB* p=new PCB;

	p->pid=n+1;
	p->pri=m_pris[n];
	p->time=m_times[n];
	p->status=0;
	n++;//
	return p;
}
#include"pritimedlg.h"
void CProcessView::OnStart() 
{
	// TODO: Add your command handler code here

	CPriTimeDlg dlg;
	dlg.DoModal();
	if(dlg.m_ok)
	{
		m_proTotal=dlg.m_proNum;
		for(int i=0;i<m_proTotal;i++)
		{
			m_pris[i]=dlg.m_pris[i];
			m_times[i]=dlg.m_times[i];
		}
	if(dlg.m_query)
	{
		m_queryFlag=true;
		m_queryClock=dlg.m_queryTime;
	}
	m_proMoni.OpenLogFile();
	PCB* p=CreatePCB();
	m_proMoni.InsertRQ(p);

	m_proMoni.WriteLogToFile();
	m_proMoni.RecordAllInfo();

	m_proMoni.ProSchedule();

	//m_proMoni.WriteLogToFile();

	m_start=true;
	Invalidate();
	m_killTimer=false;
	SetTimer(1,1000,NULL);
	}
}

void CProcessView::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	m_proMoni.m_clock++;
//	m_proMoni.RecordAllInfo();

//	m_proMoni.WriteLogToFile();
	m_proMoni.ProRun();
	if(n<m_proTotal)
	{
		PCB *p=CreatePCB();
		m_proMoni.InsertRQ(p);
		
	}
	m_proMoni.WriteLogToFile();
	m_proMoni.RecordAllInfo();

	m_proMoni.ProSchedule();

	Invalidate();

	if(m_proMoni.GetFinishFlag())
	{
		KillTimer(1);	
		m_killTimer=true;
		AfxMessageBox("演示完毕");
	}
	if(m_queryFlag)
	{
		if(m_queryClock==m_proMoni.m_clock)
		{
			KillTimer(1);
			m_killTimer=true;

			CString str;
			str.Format("视图中显示的即为你所要查询的\n第%d时刻的调度情况",m_queryClock);
			AfxMessageBox(str);
			return;
		}
	}

	CScrollView::OnTimer(nIDEvent);
}

void CProcessView::OnDestroy() 
{
	CScrollView::OnDestroy();
	
	// TODO: Add your message handler code here
	if(!m_killTimer)
		KillTimer(1);

	if(m_start)
		m_proMoni.CloseLogFile();
}

void CProcessView::OnUpdateStart(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
//	pCmdUI->SetCheck(noshow);
	pCmdUI->Enable(!m_start);	

}

void CProcessView::OnContinue() 
{
	// TODO: Add your command handler code here
	if(m_killTimer)
	{
		SetTimer(1,1000,NULL);
		m_killTimer=false;
	}
}

void CProcessView::OnStop() 
{
	// TODO: Add your command handler code here
	KillTimer(1);
	m_killTimer=true;

}

void CProcessView::OnUpdateStop(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->Enable(m_start && !m_killTimer);
}

void CProcessView::OnUpdateContinue(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
		pCmdUI->Enable(m_start && m_killTimer);

}