// This should only be called while holding a lock on s.L.
// This unfortunately holds the mutex for a little while, and if the
// command dies super early, the entire slave pretty well deadlocks.
// TODO: review this.
func (s *SlaveNode) bootCommand(request *CommandRequest) {
identifier := request.Name
// TODO: If crashed, do something different...
msg := messages.CreateSpawnCommandMessage(identifier)
_, err := s.socket.WriteMessage(msg)
if err != nil {
slog.Error(err)
return
}
commandFD, err := s.socket.ReadFD()
if err != nil {
fmt.Println(s.socket)
slog.Error(err)
return
}
fileName := strconv.Itoa(rand.Int())
commandFile := unixsocket.FdToFile(commandFD, fileName)
request.Retchan <- commandFile
}
// This should only be called while holding a lock on s.L.
// This unfortunately holds the mutex for a little while, and if the
// command dies super early, the entire slave pretty well deadlocks.
// TODO: review this.
func (s *SlaveNode) bootCommand(request *CommandRequest) {
if s.State == SCrashed {
request.Retchan <- &CommandReply{SCrashed, nil}
return
}
identifier := request.Name
msg := messages.CreateSpawnCommandMessage(identifier)
_, err := s.socket.WriteMessage(msg)
if err != nil {
slog.Error(err)
return
}
commandFD, err := s.socket.ReadFD()
if err != nil {
fmt.Println(s.socket)
slog.Error(err)
return
}
fileName := strconv.Itoa(rand.Int())
commandFile := unixsocket.FdToFile(commandFD, fileName)
request.Retchan <- &CommandReply{s.State, commandFile}
}
// This unfortunately holds the mutex for a little while, and if the
// command dies super early, the entire slave pretty well deadlocks.
// TODO: review this.
func (s *SlaveNode) bootCommand(request *CommandRequest) {
s.L.Lock()
defer s.L.Unlock()
s.trace("now sending command boot request %v", request)
identifier := request.Name
msg := messages.CreateSpawnCommandMessage(identifier)
_, err := s.socket.WriteMessage(msg)
if err != nil {
slog.Error(err)
return
}
commandFD, err := s.socket.ReadFD()
if err != nil {
fmt.Println(s.socket)
slog.Error(err)
return
}
fileName := strconv.Itoa(rand.Int())
commandFile := os.NewFile(uintptr(commandFD), fileName)
request.Retchan <- &CommandReply{s.state, commandFile}
}