1
0
Fork 0
mirror of https://github.com/moby/moby.git synced 2022-11-09 12:21:53 -05:00
moby--moby/pkg/libcontainer/nsinit/state.go
Michael Crosby 96e33a7646 Move container.json and pid file into a root specific driver dir
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-25 12:41:31 -08:00

28 lines
598 B
Go

package nsinit
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
)
// StateWriter handles writing and deleting the pid file
// on disk
type StateWriter interface {
WritePid(pid int) error
DeletePid() error
}
type DefaultStateWriter struct {
Root string
}
// writePidFile writes the namespaced processes pid to pid in the rootfs for the container
func (d *DefaultStateWriter) WritePid(pid int) error {
return ioutil.WriteFile(filepath.Join(d.Root, "pid"), []byte(fmt.Sprint(pid)), 0655)
}
func (d *DefaultStateWriter) DeletePid() error {
return os.Remove(filepath.Join(d.Root, "pid"))
}