简单线程安全测试

// 20171226_02.cpp : Defines the entry point for the application.
//

#include "stdafx.h"
#include "resource.h"
#include <stdio.h>
#include <windows.h>


HWND hEdit;
CRITICAL_SECTION cs;

DWORD WINAPI ThreadProc1(
  LPVOID lpParameter   // thread data
)
{
	TCHAR numStr[10]={0};
	memset(numStr,0,10);
	DWORD num = 0;
	DWORD nIndex = 0;
	while(nIndex<10000)
	{
		EnterCriticalSection(&cs);
		GetWindowText(hEdit,numStr,10);
		sscanf(numStr,"%d",&num);
		num++;
		nIndex++;
		memset(numStr,0,10);
		sprintf(numStr,"%d",num);
		SetWindowText(hEdit,numStr);
		LeaveCriticalSection(&cs);
	}
	
	return 0;
}

DWORD WINAPI ThreadProc2(
  LPVOID lpParameter   // thread data
)
{
	
	TCHAR numStr[10]={0};
	memset(numStr,0,10);
	DWORD num = 0;
	DWORD nIndex = 0;
	while(nIndex<10000)
	{
		EnterCriticalSection(&cs);
		GetWindowText(hEdit,numStr,10);
		sscanf(numStr,"%d",&num);
		num++;
		nIndex++;
		memset(numStr,0,10);
		sprintf(numStr,"%d",num);
		SetWindowText(hEdit,numStr);
		LeaveCriticalSection(&cs);
	}
	
	return 0;
}


BOOL CALLBACK MainDialogProc(
  HWND hwndDlg,  // handle to dialog box
  UINT uMsg,     // message
  WPARAM wParam, // first message parameter
  LPARAM lParam  // second message parameter
  ){

	switch(uMsg)
	{
	case WM_INITDIALOG:
		{
			//初始化令牌
			InitializeCriticalSection(&cs);
			hEdit = GetDlgItem(hwndDlg,IDC_EDIT);
			SetWindowText(hEdit,"0");
			break;
		}
	case WM_CLOSE:
		{
			EndDialog(hwndDlg,0);
			break;
		}
	case WM_COMMAND:
		{
			switch(LOWORD(wParam))
			{
			case IDC_BUTTON1:
				{
					//MessageBox(0,0,0,0);
					HANDLE hThread1 = CreateThread(NULL,0,ThreadProc1,0,0,NULL);
					break;
				}
			case IDC_BUTTON2:
				{
					//MessageBox(0,0,0,0);
					HANDLE hThread2 = CreateThread(NULL,0,ThreadProc2,0,0,NULL);
					break;

				}
			}
			
		}
	}

	return FALSE;
  }

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
 	// TODO: Place code here.
	
	DialogBox(hInstance,MAKEINTRESOURCE(IDD_DIALOG_MAIN),NULL,MainDialogProc);

	return 0;
}