我正在处理多个生产者和单个消费者问题。我想要在线程函数中传递像1,2,3这样的线程,以便可以根据这些编号来命名单个线程。在线程函数中传递整型数组
但创建线程后,计数7后崩溃的程序。我认为问题是由于 变量nThreadNo; 如果我限制小于7的计数,它可以正常工作。但是如果我计数超过这个,它会崩溃。
void CEvent1Dlg::CreateProducerThreads()
{
try
{
nThreadNo = new int20];
memset(nThreadNo,0,20);
if (nThreadNo ==NULL) return;
}catch(...)
{
MessageBox(_T("Memory allocation Failed"),_T("Thread"),1);
return ;
}
int i = 0;
for (i = 0;i<20;i++)
{
//nThreadNo = i+1;
nThreadNo[i] = i+1;
hWndProducer[i] = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)ProducerThrdFunc,(void*)(nThreadNo+i),0,&dwProducerThreadID[i]);
if (hWndProducer[i] == NULL)
{
//ErrorHandler(TEXT("CreateThread"));
ExitProcess(3);
}
}
//WaitForMultipleObjects(20,hWndProducer,TRUE,INFINITE);
}
DWORD WINAPI ProducerThrdFunc (LPVOID n)
{
int *nThreadNo = (int*)n;
char chThreadNo[33];
memset(chThreadNo,0,33);
while(1)
{
itoa(*nThreadNo,chThreadNo,10);
char* pMsg1 = new char[100];
char* pMsg2 = new char[100];
memset(pMsg1,0,100);
memset(pMsg2,0,100);
strcpy(pMsg1,"Producer ");
strcat(pMsg1," Thread No:");
strcat(pMsg1,chThreadNo);
if (stThreadInfoProd.pEventQueue->AddTail(pMsg1)==TRUE)
{
strcpy(pMsg2,"Producer ");
strcat(pMsg2," Thread No:");
strcat(pMsg2,chThreadNo);
strcat(pMsg2," Added the Msg");
}
else
{
strcpy(pMsg2,"Producer ");
strcat(pMsg2," Thread No:");
strcat(pMsg2,chThreadNo);
strcat(pMsg2,"failed to Add the Msg");
}
PostMessage(stThreadInfoProd.hWndHandle,UWM_ONUPDATEPRODUCERLIST,(WPARAM)pMsg2,0);
strcat(pMsg1," Adding Msg:");
//PostMessage(stThreadInfoProd.hWndHandle,UWM_ONUPDATEPRODUCERLIST,(WPARAM)pMsg2,0);
Sleep(3000);
}
return 0;
}
哦,是的,这是一个愚蠢的错误.thanks.it正在工作。 – 2011-03-28 13:38:46
1.我认为我在使用新的不是malloc,它会处理这些。我不确定。我正确 – 2011-03-28 13:40:19