关于MFC中使用WaitForMultipleObjects等待所有线程结束？

[cser5201]

我在网上找了关于等待所有线程结束的方法，其中有的帖子提到了使用WaitForMultipleObjects函数，可我在我的程序上使用该函数起不到相应的效果，求个位大神帮助啊。
代码是这样：

UINT CScanDlg::PortScan()
{
	int port[60] = {0};
	PortArrSet(port);
	DWORD dwThrdParam; 
	CWinThread *pA = NULL;
	HANDLE handle[60] = {0};

	for(int i = 0; i < 60; i++)
	{
		dwThrdParam = (DWORD)port[i];
		pA = AfxBeginThread(ThreadPortScan, &dwThrdParam);
		handle[i] = pA->m_hThread;
		Sleep(1);
	}

	WaitForMultipleObjects(60, handle, TRUE, INFINITE);
	Sleep(1);
	return 0;
}

[aegeanzorro]

在线程入口函数中使用啊~你这个是什么函数

[cser5201]

这个是个端口扫描函数，针对每个不同的端口我都开了个线程……

[cser5201]

我使用了这个函数来等待线程，可是每次线程都没有结束完该函数就执行了，苦恼了一天啊！

[Eleven]

#define MAX_THREAD_COUNT (60)
HANDLE hThread[MAX_THREAD_COUNT ] = {0};
CWinThread* pThread[MAX_THREAD_COUNT] = {0};
for(size_t i = 0; i != MAX_THREAD_COUNT; ++i)
{
  pThread[i] = AfxBeginThread(ThreadPortScan, ... , CREATE_SUSPENDED, ...);
  pThread->m_bAutoDelete = FALSE;
  hThread[i] = pThread[i]->m_hThread;
  pThread[i]->ResumeThread();
}

WaitForMultipleObjects(MAX_THREAD_COUNT, hThread, TRUE, INFINITE);
for(size_t i = 0; i != MAX_THREAD_COUNT; ++i)
{
 CloseHandle(hThread[i]);
 hThread[i] = NULL;
  delete pThread[i];
 pThread[i] = NULL;
}

[cser5201]

引用 4 楼 VisualEleven 的回复:

#define MAX_THREAD_COUNT (60)
HANDLE hThread[MAX_THREAD_COUNT ] = {0};
CWinThread* pThread[MAX_THREAD_COUNT] = {0};
for(size_t i = 0; i != MAX_THREAD_COUNT; ++i)
{
  pThread[i] = AfxBeginThread(ThreadPortScan, ... , CREATE_SUSPENDED, ...);
  pThread->m_bAutoDelete = FALSE;
  hThread[i] = pThread[i]->m_hThread;
  pThread[i]->ResumeThread();
}

WaitForMultipleObjects(MAX_THREAD_COUNT, hThread, TRUE, INFINITE);
for(size_t i = 0; i != MAX_THREAD_COUNT; ++i)
{
 CloseHandle(hThread[i]);
 hThread[i] = NULL;
  delete pThread[i];
 pThread[i] = NULL;
}

这样写后程序直接锁死了~怎么回事？

[Eleven]

引用 5 楼 u014799813 的回复:

[quote=引用 4 楼 VisualEleven 的回复:]

#define MAX_THREAD_COUNT (60)
HANDLE hThread[MAX_THREAD_COUNT ] = {0};
CWinThread* pThread[MAX_THREAD_COUNT] = {0};
for(size_t i = 0; i != MAX_THREAD_COUNT; ++i)
{
  pThread[i] = AfxBeginThread(ThreadPortScan, ... , CREATE_SUSPENDED, ...);
  pThread->m_bAutoDelete = FALSE;
  hThread[i] = pThread[i]->m_hThread;
  pThread[i]->ResumeThread();
}

WaitForMultipleObjects(MAX_THREAD_COUNT, hThread, TRUE, INFINITE);
for(size_t i = 0; i != MAX_THREAD_COUNT; ++i)
{
 CloseHandle(hThread[i]);
 hThread[i] = NULL;
  delete pThread[i];
 pThread[i] = NULL;
}

这样写后程序直接锁死了~怎么回事？[/quote] 那的看你的线程函数中写了些什么？

[cser5201]

引用 6 楼 VisualEleven 的回复:

[quote=引用 5 楼 u014799813 的回复:] [quote=引用 4 楼 VisualEleven 的回复:]

#define MAX_THREAD_COUNT (60)
HANDLE hThread[MAX_THREAD_COUNT ] = {0};
CWinThread* pThread[MAX_THREAD_COUNT] = {0};
for(size_t i = 0; i != MAX_THREAD_COUNT; ++i)
{
  pThread[i] = AfxBeginThread(ThreadPortScan, ... , CREATE_SUSPENDED, ...);
  pThread->m_bAutoDelete = FALSE;
  hThread[i] = pThread[i]->m_hThread;
  pThread[i]->ResumeThread();
}

WaitForMultipleObjects(MAX_THREAD_COUNT, hThread, TRUE, INFINITE);
for(size_t i = 0; i != MAX_THREAD_COUNT; ++i)
{
 CloseHandle(hThread[i]);
 hThread[i] = NULL;
  delete pThread[i];
 pThread[i] = NULL;
}

这样写后程序直接锁死了~怎么回事？[/quote] 那的看你的线程函数中写了些什么？[/quote] 函数是这个 UINT ThreadPortScan(LPVOID lp) { timeout.tv_sec = 1; //定义超时时间 int retal = 0; SOCKET sockfd; sockfd = socket(AF_INET,SOCK_STREAM,0); if(sockfd == INVALID_SOCKET) { return 0; } unsigned long arg = 1; retal = ioctlsocket(sockfd, FIONBIO, &arg); sockaddr_in des; des.sin_family = AF_INET; des.sin_addr.s_addr =inet_addr(HostAddr); int Port = *(int*)lp; //传递的是端口号 des.sin_port = htons(Port); connect(sockfd, (struct sockaddr *)&des, sizeof(des)); FD_ZERO(&mask); FD_SET(sockfd,&mask); retal = select(0, NULL, &mask, NULL, &timeout); if((retal == 0) || (retal == -1)) { closesocket(sockfd); } else { closesocket(sockfd); char buf[100]; sprintf(buf, "端口%d为开放状态", Port); m_pDlg->PrintInfo(buf);//打印信息 } return 0; } 我用VC调的··

[cser5201]

照我自己之前的写法··我使用getlasterror后~得出的错误是句柄无效，可是不懂怎么解决啊…………

[Eleven]

你Ｄｅｂｕｇ调试一下你的线程函数，看看卡在哪里，为啥没有返回？

[cser5201]

引用 9 楼 VisualEleven 的回复:

你Ｄｅｂｕｇ调试一下你的线程函数，看看卡在哪里，为啥没有返回？

新建的线程有点多，单步调试搞得好乱，能加你QQ和你讨论一下么？

[小小爬虾]

http://blog.csdn.net/lyd_253261362/article/details/4450202 希望对你有帮助。