// In "SBooting", we have a pid and socket to the process we will use,
// but it has not yet finished initializing (generally, running the code
// specific to this slave. When we receive a message about the success or
// failure of this operation, we transition to either crashed or ready.
func (s *SlaveNode) doBootingState() string { // -> {SCrashed, SReady}
// The slave will execute its action and respond with a status...
// Note we don't hold the mutex while waiting for the action to execute.
msg, err := s.socket.ReadMessage()
if err != nil {
slog.Error(err)
}
s.L.Lock()
defer s.L.Unlock()
msg, err = messages.ParseActionResponseMessage(msg)
if err != nil {
slog.ErrorString("[" + s.Name + "] " + err.Error())
}
if msg == "OK" {
return SReady
}
if s.Pid > 0 {
syscall.Kill(s.Pid, syscall.SIGKILL)
}
s.wipe()
s.Error = msg
return SCrashed
}
// In "SBooting", we have a pid and socket to the process we will use,
// but it has not yet finished initializing (generally, running the code
// specific to this slave. When we receive a message about the success or
// failure of this operation, we transition to either crashed or ready.
func (s *SlaveNode) doBootingState() string { // -> {SCrashed, SReady}
// The slave will execute its action and respond with a status...
// Note we don't hold the mutex while waiting for the action to execute.
msg, err := s.socket.ReadMessage()
if err != nil {
slog.Error(err)
}
s.trace("in booting state")
s.L.Lock()
defer s.L.Unlock()
msg, err = messages.ParseActionResponseMessage(msg)
if err != nil {
slog.ErrorString("[" + s.Name + "] " + err.Error())
}
if msg == "OK" {
return SReady
}
// Drain the process's feature messages, if we have any, so
// that reloads happen when any load-time problems get fixed:
s.L.Unlock()
s.handleMessages()
s.L.Lock()
// Clean up:
if s.Pid > 0 {
syscall.Kill(s.Pid, syscall.SIGKILL)
}
s.wipe()
s.Error = msg
return SCrashed
}