多線程同步打印ABC

如下爲三個線程分別打印A、B和C，代碼中採用Event來同步線程，保證按照ABC的順序循環打印。

同志們如有更好的作法，請指教，謝謝！

附：這裏有問題，對於線程關閉最好的作法是天然結束，可是工做中經常遇到的是須要線程函數中來個while，哪位兄弟能兼容解決這個問題？ 請不吝賜教！~

 

#include <conio.h>
#include <windows.h>
#include <iostream>
using namespace std;

DWORD WINAPI DealThreadA(void* para)
{
	HANDLE handle = *(HANDLE*)para;
	while (1)
	{
		WaitForSingleObject(handle, INFINITE);

		cout<<"A.."<<endl;

		ResetEvent(handle);
	}

	return 0;
}

DWORD WINAPI DealThreadB(void* para)
{
	HANDLE handle = *(HANDLE*)para;
	while (1)
	{
		WaitForSingleObject(handle, INFINITE);

		cout<<"B.."<<endl;

		ResetEvent(handle);
	}

	return 0;
}

DWORD WINAPI DealThreadC(void* para)
{
	HANDLE handle = *(HANDLE*)para;
	while (1)
	{
		WaitForSingleObject(handle, INFINITE);

		cout<<"C.."<<endl<<endl;

		ResetEvent(handle);
	}

	return 0;
}

bool IsEventHasSignal(HANDLE handle)
{
	if(WAIT_OBJECT_0 == WaitForSingleObject(handle, 0))
		return true;

	return false;
}

void WaitEventSignalBeResponsed(HANDLE handle)
{
	while (IsEventHasSignal(handle))
		Sleep(1);
}

int _tmain(int argc, _TCHAR* argv[])
{
	HANDLE hA = CreateEvent(NULL, TRUE, FALSE, NULL);
	HANDLE hB = CreateEvent(NULL, TRUE, FALSE, NULL);
	HANDLE hC = CreateEvent(NULL, TRUE, FALSE, NULL);

	CreateThread(0, 0, DealThreadA, (void*)&hA, 0, 0);
	CreateThread(0, 0, DealThreadB, (void*)&hB, 0, 0);
	CreateThread(0, 0, DealThreadC, (void*)&hC, 0, 0);

	while (!_kbhit())
	{
		Sleep(1000);

		SetEvent(hA);
		WaitEventSignalBeResponsed(hA);

		SetEvent(hB);
		WaitEventSignalBeResponsed(hB);

		SetEvent(hC);
		WaitEventSignalBeResponsed(hC);
	}

	CloseHandle(hA);
	CloseHandle(hB);
	CloseHandle(hC);

	return 0;
}