private bool TryReapChild()
{
lock (_gate)
{
if (_exited)
{
return(false);
}
// Try to get the state of the child process
int exitCode;
int waitResult = Interop.Sys.WaitPidExitedNoHang(_processId, out exitCode);
if (waitResult == _processId)
{
_exitCode = exitCode;
if (_usesTerminal)
{
// Update terminal settings before calling SetExited.
Process.ConfigureTerminalForChildProcesses(-1);
}
SetExited();
return(true);
}
else if (waitResult == 0)
{
// Process is still running
}
else
{
// Unexpected.
int errorCode = Marshal.GetLastWin32Error();
Environment.FailFast("Error while reaping child. errno = " + errorCode);
}
return(false);
}
}