moby/state.go

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2013-01-19 00:13:39 +00:00
package docker
import (
"sync"
)
type State struct {
Running bool
Pid int
ExitCode int
stateChangeLock *sync.Mutex
stateChangeCond *sync.Cond
}
func newState() *State {
lock := new(sync.Mutex)
return &State{
stateChangeLock: lock,
stateChangeCond: sync.NewCond(lock),
}
}
func (s *State) setRunning(pid int) {
s.Running = true
s.ExitCode = 0
s.Pid = pid
s.broadcast()
}
func (s *State) setStopped(exitCode int) {
s.Running = false
s.Pid = 0
s.ExitCode = exitCode
s.broadcast()
}
func (s *State) broadcast() {
s.stateChangeLock.Lock()
s.stateChangeCond.Broadcast()
s.stateChangeLock.Unlock()
}
func (s *State) wait() {
s.stateChangeLock.Lock()
s.stateChangeCond.Wait()
s.stateChangeLock.Unlock()
}