www.pudn.com > Thread4_23.rar > Thread4View.cpp

// Thread4View.cpp : implementation of the CThread4View class 
// 
 
#include "stdafx.h" 
#include "Thread4.h" 
 
#include "Thread4Doc.h" 
#include "Thread4View.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif   
 
////////////////////////////////////////////////////////////////////////////// 
//CSharedResource 
 
//在构造函数中完成对信号对象的创建： 
CSharedResource::CSharedResource() 
{ 
	ptrSemaphore=new CSemaphore(2,2); 
} 
 
//在析构函数中完成对信号对象的释放： 
CSharedResource::~CSharedResource() 
{ 
	delete ptrSemaphore; 
} 
 
void CSharedResource::AccessResource() 
{ 
	CSingleLock SingleLock(ptrSemaphore); 
	SingleLock.Lock(); 
	/* ...... 
	  资源访问 
	*/ 
 
	SingleLock.Unlock(); 
	//Sleep(1000); 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CThread4View 
 
IMPLEMENT_DYNCREATE(CThread4View, CScrollView) 
 
BEGIN_MESSAGE_MAP(CThread4View, CScrollView) 
	//{{AFX_MSG_MAP(CThread4View) 
	ON_COMMAND(ID_THREAD_BEGIN, OnThreadBegin) 
	//}}AFX_MSG_MAP 
	// Standard printing commands 
	ON_COMMAND(ID_FILE_PRINT, CScrollView::OnFilePrint) 
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CScrollView::OnFilePrint) 
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CScrollView::OnFilePrintPreview) 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CThread4View construction/destruction 
 
CThread4View::CThread4View() 
{ 
	// TODO: add construction code here 
 
} 
 
CThread4View::~CThread4View() 
{ 
} 
 
BOOL CThread4View::PreCreateWindow(CREATESTRUCT& cs) 
{ 
	// TODO: Modify the Window class or styles here by modifying 
	//  the CREATESTRUCT cs 
 
	return CScrollView::PreCreateWindow(cs); 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CThread4View drawing 
 
void CThread4View::OnDraw(CDC* pDC) 
{ 
	CThread4Doc* pDoc = GetDocument(); 
	ASSERT_VALID(pDoc); 
	// TODO: add draw code for native data here 
	LOGFONT logFont; 
	logFont.lfHeight=24; 
	logFont.lfWeight=FW_BOLD; 
	logFont.lfOrientation=0; 
	logFont.lfEscapement=0; 
	logFont.lfStrikeOut=0; 
	logFont.lfUnderline=0; 
	logFont.lfItalic=0; 
	logFont.lfCharSet=GB2312_CHARSET; 
	logFont.lfOutPrecision=OUT_DEFAULT_PRECIS; 
	logFont.lfClipPrecision=CLIP_DEFAULT_PRECIS; 
	logFont.lfQuality=DEFAULT_QUALITY; 
	logFont.lfPitchAndFamily=DEFAULT_PITCH|FF_ROMAN; 
	strcpy(logFont.lfFaceName,"The Times Roman"); 
 
	CFont font; 
	font.CreateFontIndirect(&logFont); 
	CFont* oldFont=pDC->SelectObject(&font); 
 
	CRect Rect; 
	GetClientRect(&Rect); 
	pDC->SetTextColor(RGB(255,0,0)); 
	pDC->DrawText("线程同步--使用信号量",Rect,DT_CENTER|DT_VCENTER|DT_SINGLELINE); 
 
 
	pDC->SelectObject(oldFont); 
} 
 
void CThread4View::OnInitialUpdate() 
{ 
	CScrollView::OnInitialUpdate(); 
 
	CSize sizeTotal; 
	// TODO: calculate the total size of this view 
	sizeTotal.cx = sizeTotal.cy = 100; 
	SetScrollSizes(MM_TEXT, sizeTotal); 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CThread4View printing 
 
BOOL CThread4View::OnPreparePrinting(CPrintInfo* pInfo) 
{ 
	// default preparation 
	return DoPreparePrinting(pInfo); 
} 
 
void CThread4View::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) 
{ 
	// TODO: add extra initialization before printing 
} 
 
void CThread4View::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) 
{ 
	// TODO: add cleanup after printing 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CThread4View diagnostics 
 
#ifdef _DEBUG 
void CThread4View::AssertValid() const 
{ 
	CScrollView::AssertValid(); 
} 
 
void CThread4View::Dump(CDumpContext& dc) const 
{ 
	CScrollView::Dump(dc); 
} 
 
CThread4Doc* CThread4View::GetDocument() // non-debug version is inline 
{ 
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CThread4Doc))); 
	return (CThread4Doc*)m_pDocument; 
} 
#endif //_DEBUG 
 
///////////////////////////////////////////////////////////////////////////// 
// CThread4View message handlers 
 
CSharedResource SharedResource; 
 
UINT Thread_Proc1(LPVOID param) 
{ 
	SharedResource.AccessResource(); 
	::MessageBox((HWND)param,"Thread #1 had accessed the Semaphore!","Thread Proc1",MB_OK); 
	return 0; 
} 
 
UINT Thread_Proc2(LPVOID param) 
{ 
	SharedResource.AccessResource(); 
	::MessageBox((HWND)param,"Thread #2 had accessed the Semaphore!","Thread Proc2",MB_OK); 
	return 0; 
} 
 
UINT Thread_Proc3(LPVOID param) 
{ 
	SharedResource.AccessResource(); 
	::MessageBox((HWND)param,"Thread #3 had accessed the Semaphore!","Thread Proc3",MB_OK); 
	return 0; 
} 
 
void CThread4View::OnThreadBegin()  
{ 
	// TODO: Add your command handler code here 
	HWND hWnd=GetSafeHwnd(); 
	AfxBeginThread(Thread_Proc1,hWnd); 
	AfxBeginThread(Thread_Proc2,hWnd); 
	AfxBeginThread(Thread_Proc3,hWnd); 
	 
}