func (s *Supervisor) updateProcess(t *UpdateProcessTask) error {
i, ok := s.containers[t.ID]
if !ok {
return ErrContainerNotFound
}
processes, err := i.container.Processes()
if err != nil {
return err
}
var process runtime.Process
for _, p := range processes {
if p.ID() == t.PID {
process = p
break
}
}
if process == nil {
return ErrProcessNotFound
}
if t.CloseStdin {
if err := process.CloseStdin(); err != nil {
return err
}
}
if t.Width > 0 || t.Height > 0 {
if err := process.Resize(t.Width, t.Height); err != nil {
return err
}
}
return nil
}
func (m *Monitor) Monitor(p runtime.Process) error {
m.m.Lock()
defer m.m.Unlock()
fd := p.ExitFD()
event := syscall.EpollEvent{
Fd: int32(fd),
Events: syscall.EPOLLHUP,
}
if err := archutils.EpollCtl(m.epollFd, syscall.EPOLL_CTL_ADD, fd, &event); err != nil {
return err
}
EpollFdCounter.Inc(1)
m.receivers[fd] = p
return nil
}