/**
* Returns the next line output by the process, up to $maxbytes bytes
* @param string $fileId the unique file id generated by ProcMonitor::Start
* @param int $maxbytes the maximum number of bytes to retrieve from a line
* @return string a line of output from the process
*/
public function GetOutput($fileId, $maxbytes = 1024)
{
$handle = fopen(ProcMonitor::GetFName($fileId), "r");
$bytesRead = procMonitor::GetBytesRead($fileId);
fseek($handle, $bytesRead);
$output = fgets($handle, $maxbytes);
$bytesRead += strlen($output);
ProcMonitor::SetBytesRead($fileId, $bytesRead);
return $output;
}
