size_t nwxProcess::ProcessIO(size_t nLimit)
{
size_t nRtn = 0;
bool bInputClosed = false;
if(!m_bPaused)
{
if(!IsInputOpened())
{
if(m_sBuffer.Len())
{
m_sBuffer += "\n";
ProcessLine(m_sBuffer.utf8_str(),m_sBuffer.Len(),false);
m_sBuffer.Empty();
}
bInputClosed = true;
}
else
{
while(IsInputAvailable() && (nRtn < nLimit))
{
nRtn += ProcessIO(GetInputStream(),m_sBuffer,false);
}
}
if(!IsErrorOpened())
{
if(m_sBufferError.Len())
{
m_sBufferError += "\n";
ProcessLine(m_sBufferError.utf8_str(),m_sBufferError.Len(),true);
m_sBufferError.Empty();
}
if(bInputClosed && m_bRunning)
{
m_bRunning = false;
// we are sometimes not notified when process ends
#ifndef __WXMSW__
// need to clean up zombie because wx sometimes
// fails to do this on the macintosh
int nStatLoc;
pid_t nPID;
nPID = waitpid((pid_t)m_nPID,&nStatLoc,0);
OnTerminate(m_nPID,nStatLoc);
#endif
}
}
else
{
while(IsErrorAvailable() && (nRtn < nLimit))
{
nRtn += ProcessIO(GetErrorStream(),m_sBufferError,true);
}
}
}
return nRtn;
}
bool wxGISProcess::Start()
{
m_pid = Execute();
if(m_pid == 0)
return false;
m_nState = enumGISTaskWork;
m_dtBeg = wxDateTime::Now();
m_dfDone = 0;
//create and start read thread stdin
if(IsInputOpened())
{
return CreateAndRunReadThread();
}
//start err thread ?
return true; //or false?
}
