请教个多线程问题

[unhappyless]

翁天恩(翁天恩) 11:35:01
#include <windows.h>
#include <iostream>
using namespace std;

HANDLE hEvent;

DWORD WINAPI ThreadSocketProc(
							  LPVOID lpParameter
							  )
{
	WaitForSingleObject(hEvent,INFINITE);
	//第一个线程占用hEvent,CreateEvent第二参数是false,那么在return 后 hEvent应该处于有信号状态，第二个线程应该可以执行
	int i = 5;
	if(0 == (int)lpParameter )
	{
		while(i--)
		{
			cout<<(int)lpParameter<<endl;
		}
	}
	else if(1 == (int)lpParameter )
	{
		while(i--)
		{
			cout<<(int)lpParameter<<endl;
		}
	}
	else
	{
		cout<<"error"<<endl;
	}
	return 0;		//这里返回值要怎么在外部获得？别说用个全局变量
}

int main()
{
	hEvent = CreateEvent(NULL,FALSE,TRUE,NULL);
	HANDLE thread_handle[2];  
	DWORD  thread_id[2];      
	for(int i =0; i<2; ++i)
	{
		thread_handle[i] = CreateThread(0,0,ThreadSocketProc,(LPVOID)i,0,&thread_id[i]);
	}

	WaitForMultipleObjects(2, 
		thread_handle,   
		TRUE,            
		INFINITE);

	CloseHandle(thread_handle[0]);
	CloseHandle(thread_handle[1]);
	CloseHandle(hEvent);
	return 0;
}

[unhappyless_12]

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