package daemon import ( "fmt" "sync" "time" "github.com/dotcloud/docker/pkg/units" ) type State struct { sync.RWMutex Running bool Pid int ExitCode int StartedAt time.Time FinishedAt time.Time } // String returns a human-readable description of the state func (s *State) String() string { s.RLock() defer s.RUnlock() if s.Running { return fmt.Sprintf("Up %s", units.HumanDuration(time.Now().UTC().Sub(s.StartedAt))) } if s.FinishedAt.IsZero() { return "" } return fmt.Sprintf("Exited (%d) %s ago", s.ExitCode, units.HumanDuration(time.Now().UTC().Sub(s.FinishedAt))) } func (s *State) IsRunning() bool { s.RLock() defer s.RUnlock() return s.Running } func (s *State) GetExitCode() int { s.RLock() defer s.RUnlock() return s.ExitCode } func (s *State) SetRunning(pid int) { s.Lock() defer s.Unlock() s.Running = true s.ExitCode = 0 s.Pid = pid s.StartedAt = time.Now().UTC() } func (s *State) SetStopped(exitCode int) { s.Lock() defer s.Unlock() s.Running = false s.Pid = 0 s.FinishedAt = time.Now().UTC() s.ExitCode = exitCode }