lindlg.cpp

操作系统实验——主存的分配和回收 Visualc++6.0开发环境 基于MFC

// LinDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Lin.h"
#include "LinDlg.h"

#include "Data.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()

/////////////////////////////////////////////////////////////////////////////
// CLinDlg dialog

CLinDlg::CLinDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CLinDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CLinDlg)
	m_job_ID = _T("");
	m_job_SIZE = 1;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CLinDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CLinDlg)
	DDX_Control(pDX, IDC_LIST2_MEM, m_mem_list);
	DDX_Control(pDX, IDC_LIST1_JOB, m_job_list);
	DDX_Text(pDX, IDC_EDIT1_ID, m_job_ID);
	DDX_Text(pDX, IDC_EDIT2_SIZE, m_job_SIZE);
	DDV_MinMaxUInt(pDX, m_job_SIZE, 1, 600);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CLinDlg, CDialog)
	//{{AFX_MSG_MAP(CLinDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUT_ASSIGN, OnButAssign)
	ON_BN_CLICKED(IDC_BUT_RECLAIM, OnButReclaim)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CLinDlg message handlers

BOOL CLinDlg::OnInitDialog()
{
	CDialog::OnInitDialog();
	DWORD dwStyle1 = m_job_list.GetExtendedStyle();
	ListView_SetExtendedListViewStyle(m_job_list.m_hWnd, LVS_EX_FULLROWSELECT|LVS_EX_GRIDLINES);
	DWORD dwStyle2 = m_mem_list.GetExtendedStyle();
	ListView_SetExtendedListViewStyle(m_mem_list.m_hWnd, LVS_EX_FULLROWSELECT|LVS_EX_GRIDLINES);
	m_job_list.InsertColumn(0,"作业号",LVCFMT_LEFT,90);
	m_job_list.InsertColumn(1,"首地址",LVCFMT_CENTER,90);
	m_job_list.InsertColumn(2,"作业大小",LVCFMT_CENTER,90);
	m_mem_list.InsertColumn(0,"首地址",LVCFMT_LEFT,90);
	m_mem_list.InsertColumn(1,"末地址",LVCFMT_LEFT,90);
	m_mem_list.InsertColumn(2,"长度",LVCFMT_LEFT,90);

	JobLink.JobInit();
	JobLink.MemInit();

	// 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
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CLinDlg::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 CLinDlg::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 CLinDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CLinDlg::OnButAssign() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
//	Data JobLink;
	if(m_job_ID=="")
	{
		MessageBox("作业名不能为空!","提示:",MB_ICONINFORMATION);
		return;
	}
	if(m_job_SIZE>JobLink.MostSize())
	{
		MessageBox("内存不足!","提示:",MB_ICONINFORMATION);
		return ;
	}
	if(m_job_SIZE==0)
	{
		MessageBox("作业大小不能为0!","提示:",MB_ICONINFORMATION);
		return ;
	}
	JobLink.JobAdd(m_job_ID,m_job_SIZE);
	JobLink.Fill_Mem(JobLink.MemAssign(m_job_SIZE));
//	m_job_SIZE=JobLink.mem_list->First_Addr+20;
//	m_job_SIZE=JobLink.job_list->MemSize+10; // 测试通过 ^_^
//	m_job_ID=JobLink.job_list->ID;
	ShowJobList();
	ShowMemList();
	UpdateData(false);
}

void CLinDlg::OnButReclaim() 
{
	// TODO: Add your control notification handler code here
	UINT firaddr;
	UINT size;
	if(m_job_list.GetFirstSelectedItemPosition())
	{
		JobLink.Delet((UINT)m_job_list.GetFirstSelectedItemPosition(),firaddr,size);
		JobLink.MemRECLAIM(firaddr,size);
//		m_job_SIZE=firaddr;  //测试通过 ^_^
		ShowJobList();
		ShowMemList();
		UpdateData(false);
	}
	else
	{
		MessageBox("请先选中要删除的作业","提示:",MB_ICONINFORMATION);
	}
}
void CLinDlg::ShowJobList() // 显示作业链表
{
	CString Job_ID;
	CString Job_SIZE;
	CString First_Addr;
	m_job_list.DeleteAllItems(); 

	LVITEM lvitem;
	int iActualItem=0;
	int ItemCount=0;

	JobList temp;
	temp=JobLink.job_list;
	while(temp!=NULL)
	{
       Job_ID.Format("%s",temp->ID);
	   First_Addr.Format("%d",temp->First_Addr );
	   Job_SIZE.Format("%d",temp->MemSize);
	   for(int iSubItem=0;iSubItem<3;iSubItem++)
	   {
	    	lvitem.mask = LVIF_TEXT|(iSubItem == 0? LVIF_IMAGE : 0);
	    	lvitem.iItem = (iSubItem == 0)? ++ItemCount : iActualItem;
		    lvitem.iSubItem = iSubItem;
	    	switch(iSubItem)
			{
	        case 0:
		      	lvitem.pszText =(LPTSTR)(LPCTSTR)Job_ID;
		    	break;
	        case 1:
		    	lvitem.pszText = (LPTSTR)(LPCTSTR)First_Addr;
				break;
            case 2:
				lvitem.pszText = (LPTSTR)(LPCTSTR)Job_SIZE;
				break;
			} 
	    	if (iSubItem == 0)
		    	iActualItem = m_job_list.InsertItem(&lvitem);
	    	else
		    	m_job_list.SetItem(&lvitem);
	   }
	   temp=temp->next;
	}

}


void CLinDlg::ShowMemList() //显示内存空闲分区链表
{
	CString Mem_FirAddr;
	CString Mem_LastAddr;
	CString Mem_Size;
	m_mem_list.DeleteAllItems(); 

	LVITEM lvitem;
	int iActualItem=0;
	int ItemCount=0;

	MemList temp;
	temp=JobLink.mem_list;
	while(temp!=NULL)
	{
       Mem_FirAddr.Format("%d",temp->First_Addr);
	   Mem_LastAddr.Format("%d",temp->Last_Addr );
	   Mem_Size.Format("%d",temp->Last_Addr-temp->First_Addr);
//	   AddJob(id,RunTime,TakeTime,TakeMem,PrintNum,TapeNum);
	   for(int iSubItem=0;iSubItem<3;iSubItem++)
	   {
	    	lvitem.mask = LVIF_TEXT|(iSubItem == 0? LVIF_IMAGE : 0);
	    	lvitem.iItem = (iSubItem == 0)? ++ItemCount : iActualItem;
		    lvitem.iSubItem = iSubItem;
	    	switch(iSubItem)
			{
	        case 0:
		      	lvitem.pszText =(LPTSTR)(LPCTSTR)Mem_FirAddr;
		    	break;
	        case 1:
		    	lvitem.pszText = (LPTSTR)(LPCTSTR)Mem_LastAddr;
				break;
            case 2:
				lvitem.pszText = (LPTSTR)(LPCTSTR)Mem_Size;
				break;
			} 
	    	if (iSubItem == 0)
		    	iActualItem = m_mem_list.InsertItem(&lvitem);
	    	else
		    	m_mem_list.SetItem(&lvitem);
	   }
	   temp=temp->tail;
	}

}