mysyn1view.cpp

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// MySyn1View.cpp : implementation of the CMySyn1View class
//

#include "stdafx.h"
#include "MySyn1.h"

#include "MySyn1Doc.h"
#include "MySyn1View.h"
#include "afxmt.h"

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

#define  test1 //使用临界区对象进行线程同步
//#define  test2 //使用互斥对象 (mutexse) 进行线程同步
//#define  test3 //使用信号量(semaphores)对象进行线程同步
int count=0;


#ifdef test1
CCriticalSection critical;
#endif 

#ifdef test2
CMutex mutex;
#endif

#ifdef test3
CSemaphore *sema=new CSemaphore(2,2);
#endif

/////////////////////////////////////////////////////////////////////////////
// CMySyn1View

IMPLEMENT_DYNCREATE(CMySyn1View, CView)

BEGIN_MESSAGE_MAP(CMySyn1View, CView)
	//{{AFX_MSG_MAP(CMySyn1View)
	ON_COMMAND(ID_Synchro, OnSynchro)
	ON_COMMAND(ID_Nonsyn, OnNonsyn)
	//}}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()

/////////////////////////////////////////////////////////////////////////////
// CMySyn1View construction/destruction

CMySyn1View::CMySyn1View()
{
	// TODO: add construction code here

}

CMySyn1View::~CMySyn1View()
{
}

BOOL CMySyn1View::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CMySyn1View drawing

void CMySyn1View::OnDraw(CDC* pDC)
{
	CMySyn1Doc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
}

/////////////////////////////////////////////////////////////////////////////
// CMySyn1View printing

BOOL CMySyn1View::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CMySyn1View::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CMySyn1View::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CMySyn1View diagnostics

#ifdef _DEBUG
void CMySyn1View::AssertValid() const
{
	CView::AssertValid();
}

void CMySyn1View::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CMySyn1Doc* CMySyn1View::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CMySyn1Doc)));
	return (CMySyn1Doc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMySyn1View message handlers
UINT NonsynFunction(LPVOID param)
{   int Data[5],i;

	for(i=0;i<3;i++)
	{count++;
	::Sleep(50);
	Data[i]=count;
	}
	char str[50]={0};
	
    for(i=0;i<3;i++)
	{int len=strlen(str);
     wsprintf(&str[len],"%d",Data[i]);
	}

	::MessageBox((HWND)param,str,"Nonsyn Thread",MB_OK);
    return 0;
}

UINT SynchroFunction(LPVOID param)
{   int Data[5],i;
	
#ifdef test1
	critical.Lock();
#endif

#ifdef test2
	CSingleLock singleLock(&mutex);
	singleLock.Lock();
#endif

#ifdef test3
    CSingleLock singleLock(sema);
    singleLock.Lock();
#endif

	for(i=0;i<3;i++)
	{count++;
	::Sleep(50);
	Data[i]=count;
	}
	
	char str[50]={0};
	
	for(i=0;i<3;i++)
	{int len=strlen(str);
	wsprintf(&str[len],"%d",Data[i]);
	}

	::Sleep(5000);

#ifdef  test1
	critical.Unlock();
#endif

#ifdef  test2
	singleLock.Unlock();
#endif
#ifdef  test3
	singleLock.Unlock();
#endif
	::MessageBox((HWND)param,str,"synchro Thread",MB_OK);
return 0;
}

void CMySyn1View::OnNonsyn() 
{
	// TODO: Add your command handler code here
count=0;
HWND hWnd=GetSafeHwnd();
AfxBeginThread(NonsynFunction,hWnd);
AfxBeginThread(NonsynFunction,hWnd);
AfxBeginThread(NonsynFunction,hWnd);		
}

void CMySyn1View::OnSynchro()  
{
	// TODO: Add your command handler code here
count=0;
HWND hWnd=GetSafeHwnd();
AfxBeginThread(SynchroFunction,hWnd);
AfxBeginThread(SynchroFunction,hWnd);	
AfxBeginThread(SynchroFunction,hWnd);	
}