61 lines
1.1 KiB
Go
61 lines
1.1 KiB
Go
package docker
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import (
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"fmt"
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"github.com/dotcloud/docker/future"
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"sync"
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"time"
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)
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type State struct {
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Running bool
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Pid int
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ExitCode int
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StartedAt time.Time
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stateChangeLock *sync.Mutex
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stateChangeCond *sync.Cond
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}
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func newState() *State {
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lock := new(sync.Mutex)
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return &State{
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stateChangeLock: lock,
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stateChangeCond: sync.NewCond(lock),
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}
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}
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// String returns a human-readable description of the state
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func (s *State) String() string {
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if s.Running {
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return fmt.Sprintf("Up %s", future.HumanDuration(time.Now().Sub(s.StartedAt)))
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}
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return fmt.Sprintf("Exit %d", s.ExitCode)
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}
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func (s *State) setRunning(pid int) {
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s.Running = true
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s.ExitCode = 0
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s.Pid = pid
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s.StartedAt = time.Now()
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s.broadcast()
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}
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func (s *State) setStopped(exitCode int) {
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s.Running = false
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s.Pid = 0
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s.ExitCode = exitCode
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s.broadcast()
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}
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func (s *State) broadcast() {
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s.stateChangeLock.Lock()
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s.stateChangeCond.Broadcast()
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s.stateChangeLock.Unlock()
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}
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func (s *State) wait() {
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s.stateChangeLock.Lock()
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s.stateChangeCond.Wait()
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s.stateChangeLock.Unlock()
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}
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