containerd/worker.go
Michael Crosby e9f63fc9a4 Add basic fifo support for IO copy
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2015-12-14 14:15:26 -08:00

68 lines
1.2 KiB
Go

package containerd
import (
"sync"
"time"
"github.com/docker/containerd/runtime"
)
type Worker interface {
Start()
}
type StartTask struct {
Container runtime.Container
Checkpoint string
IO *runtime.IO
Stdout string
Stderr string
Err chan error
}
func NewWorker(s *Supervisor, wg *sync.WaitGroup) Worker {
return &worker{
s: s,
wg: wg,
}
}
type worker struct {
wg *sync.WaitGroup
s *Supervisor
}
func (w *worker) Start() {
defer w.wg.Done()
for t := range w.s.tasks {
started := time.Now()
l, err := w.s.copyIO(t.Stdout, t.Stderr, t.IO)
if err != nil {
evt := NewEvent(DeleteEventType)
evt.ID = t.Container.ID()
w.s.SendEvent(evt)
t.Err <- err
continue
}
w.s.containers[t.Container.ID()].copier = l
if t.Checkpoint != "" {
if err := t.Container.Restore(t.Checkpoint); err != nil {
evt := NewEvent(DeleteEventType)
evt.ID = t.Container.ID()
w.s.SendEvent(evt)
t.Err <- err
continue
}
} else {
if err := t.Container.Start(); err != nil {
evt := NewEvent(DeleteEventType)
evt.ID = t.Container.ID()
w.s.SendEvent(evt)
t.Err <- err
continue
}
}
ContainerStartTimer.UpdateSince(started)
t.Err <- nil
}
}