// thread to receive output of the child process
DWORD WINAPI CRedirector::OutputThread(LPVOID lpvThreadParam)
{
ofstream myfile;
myfile.open ("CRedirectorLog_OutputThread.txt");
HANDLE aHandles[2];
int nRet;
CRedirector* pRedir = (CRedirector*) lpvThreadParam;
myfile << "\tCRedirector object has created..\n";
ASSERT(pRedir != NULL);
aHandles[0] = pRedir->m_hChildProcess;
aHandles[1] = pRedir->m_hEvtStop;
for (;;)
{
// redirect stdout till there's no more data.
nRet = pRedir->RedirectStdout();
if (nRet <= 0)
break;
myfile << "\tWaiting for multiple objects..\n";
// check if the child process has terminated.
DWORD dwRc = ::WaitForMultipleObjects(
2, aHandles, FALSE, pRedir->m_dwWaitTime);
myfile <<"\tWait time we got is " << pRedir->m_dwWaitTime <<"\n";
if (WAIT_OBJECT_0 == dwRc) // the child process ended
{
myfile <<"\t child process terminated\n";
nRet = pRedir->RedirectStdout();
if (nRet > 0)
nRet = 0;
break;
}
if (WAIT_OBJECT_0+1 == dwRc) // m_hEvtStop was signalled
{
myfile <<"\t Event Stop has signaled....\n";
nRet = 1; // cancelled
break;
}
}
myfile.close();
// close handles
pRedir->Close();
return nRet;
}
// thread to receive output of the child process
unsigned __stdcall CRedirector::OutputThread(void *pvThreadParam)
{
HANDLE aHandles[2];
int nRet;
CRedirector* pRedir = (CRedirector*) pvThreadParam;
_ASSERT(pRedir != NULL);
aHandles[0] = pRedir->m_hChildProcess;
aHandles[1] = pRedir->m_hEvtStop;
EnterCriticalSection(pRedir->m_pcs);
for (;;) {
// redirect stdout till there's no more data.
nRet = pRedir->RedirectStdout();
if (nRet <= 0)
break;
// check if the child process has terminated.
DWORD dwRc = ::WaitForMultipleObjects(
2, aHandles, FALSE, pRedir->m_dwWaitTime);
if (WAIT_OBJECT_0 == dwRc) // the child process ended
{
nRet = pRedir->RedirectStdout();
if (nRet > 0)
nRet = 0;
break;
}
if (WAIT_OBJECT_0+1 == dwRc) // m_hEvtStop was signalled
{
nRet = 1; // cancelled
break;
}
/* else
{
_ASSERT(0);
break;
}*/
}
LeaveCriticalSection(pRedir->m_pcs);
// close handles
//pRedir->Close(); // Commented out by WB (it causes problems)
_endthreadex( nRet );
return nRet;
}
