github.com/zhuohuang-hust/src-cbuild@v0.0.0-20230105071821-c7aab3e7c840/mergeCode/runc/libcontainer/cgroups/fs/net_cls.go (about) 1 // +build linux 2 3 package fs 4 5 import ( 6 "strconv" 7 8 "github.com/opencontainers/runc/libcontainer/cgroups" 9 "github.com/opencontainers/runc/libcontainer/configs" 10 ) 11 12 type NetClsGroup struct { 13 } 14 15 func (s *NetClsGroup) Name() string { 16 return "net_cls" 17 } 18 19 func (s *NetClsGroup) Apply(d *cgroupData) error { 20 _, err := d.join("net_cls") 21 if err != nil && !cgroups.IsNotFound(err) { 22 return err 23 } 24 return nil 25 } 26 27 func (s *NetClsGroup) Set(path string, cgroup *configs.Cgroup) error { 28 if cgroup.Resources.NetClsClassid != 0 { 29 if err := writeFile(path, "net_cls.classid", strconv.FormatUint(uint64(cgroup.Resources.NetClsClassid), 10)); err != nil { 30 return err 31 } 32 } 33 34 return nil 35 } 36 37 func (s *NetClsGroup) Remove(d *cgroupData) error { 38 return removePath(d.path("net_cls")) 39 } 40 41 func (s *NetClsGroup) GetStats(path string, stats *cgroups.Stats) error { 42 return nil 43 }