?? threadsynbycriticalsectionsdlg.cpp
字號(hào):
// ThreadSynByCriticalSectionsDlg.cpp : implementation file
//
#include "stdafx.h"
#include "ThreadSynByCriticalSections.h"
#include "ThreadSynByCriticalSectionsDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CThreadSynByCriticalSectionsDlg dialog
CThreadSynByCriticalSectionsDlg::CThreadSynByCriticalSectionsDlg(CWnd* pParent /*=NULL*/)
: CDialog(CThreadSynByCriticalSectionsDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CThreadSynByCriticalSectionsDlg)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CThreadSynByCriticalSectionsDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CThreadSynByCriticalSectionsDlg)
// NOTE: the ClassWizard will add DDX and DDV calls here
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CThreadSynByCriticalSectionsDlg, CDialog)
//{{AFX_MSG_MAP(CThreadSynByCriticalSectionsDlg)
ON_BN_CLICKED(IDC_BTNEXEC, OnBtnexec)
ON_WM_DESTROY()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CThreadSynByCriticalSectionsDlg message handlers
BOOL CThreadSynByCriticalSectionsDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// 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
CenterWindow(GetDesktopWindow()); // center to the hpc screen
//初始化臨界區(qū)對(duì)象
InitializeCriticalSection(&m_critical_Section);
return TRUE; // return TRUE unless you set the focus to a control
}
/*
*函數(shù)介紹:線程執(zhí)行過(guò)程
*入口參數(shù):pArg:創(chuàng)建線程時(shí),傳進(jìn)來(lái)的參數(shù),這里指的列表框控件指針
*出口參數(shù):(無(wú))
*返回值:這里只返回1。
*/
DWORD CThreadSynByCriticalSectionsDlg::ThreadProc(PVOID pArg)
{
CThreadSynByCriticalSectionsDlg * pDlg;
CListBox * pLstBox;
pLstBox = (CListBox*)pArg;
pDlg = (CThreadSynByCriticalSectionsDlg*)AfxGetMainWnd();
TCHAR buffer[10];
//進(jìn)入臨界區(qū)
EnterCriticalSection(&(pDlg->m_critical_Section));
//給數(shù)組賦值
for (int i=0;i<MAXDATASIZE;i++)
{
pDlg->m_incNum++;
pDlg->m_aGlobalData[i] = pDlg->m_incNum;
Sleep(5);
}
//顯示已經(jīng)賦值的數(shù)組
for(i = 0 ; i < MAXDATASIZE ; i++)
{
_itow(pDlg->m_aGlobalData[i],buffer,10);
pLstBox->AddString(buffer);
}
//離開(kāi)臨界區(qū)
LeaveCriticalSection(&(pDlg->m_critical_Section));
return 1;
}
/*
執(zhí)行按鈕單擊事件,用于創(chuàng)建兩個(gè)線程
*/
void CThreadSynByCriticalSectionsDlg::OnBtnexec()
{
DWORD dwThreadId1,dwThreadId2;
HANDLE handle1,handle2;
CListBox * pLstOne;
CListBox * pLstTwo;
pLstOne = (CListBox*)GetDlgItem(IDC_LISTONE);
pLstTwo = (CListBox*)GetDlgItem(IDC_LISTTWO);
//初始化計(jì)數(shù)值
m_incNum = 0;
//創(chuàng)建兩個(gè)線程
handle1 = CreateThread(NULL,0,ThreadProc,pLstOne,0,&dwThreadId1);
handle2 = CreateThread(NULL,0,ThreadProc,pLstTwo,0,&dwThreadId2);
if (!handle1)
{
AfxMessageBox(_T("線程1創(chuàng)建失敗"));
}
if (!handle2)
{
AfxMessageBox(_T("線程2創(chuàng)建失敗"));
}
CloseHandle(handle1);
CloseHandle(handle2);
}
void CThreadSynByCriticalSectionsDlg::OnDestroy()
{
CDialog::OnDestroy();
//釋放臨界區(qū)對(duì)象資源
DeleteCriticalSection(&m_critical_Section);
}
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