/
qdisc.go
83 lines (66 loc) · 1.33 KB
/
qdisc.go
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package ip
import (
"github.com/lxc/lxd/shared"
)
// Qdisc represents 'queueing discipline' object.
type Qdisc struct {
Dev string
Handle string
Root bool
Ingress bool
}
func (qdisc *Qdisc) mainCmd() []string {
cmd := []string{"qdisc", "add", "dev", qdisc.Dev}
if qdisc.Handle != "" {
cmd = append(cmd, "handle", qdisc.Handle)
}
if qdisc.Root {
cmd = append(cmd, "root")
}
if qdisc.Ingress {
cmd = append(cmd, "ingress")
}
return cmd
}
// Add adds qdisc to a node.
func (qdisc *Qdisc) Add() error {
cmd := qdisc.mainCmd()
_, err := shared.RunCommand("tc", cmd...)
if err != nil {
return err
}
return nil
}
// Delete deletes qdisc from node.
func (qdisc *Qdisc) Delete() error {
cmd := []string{"qdisc", "del", "dev", qdisc.Dev}
if qdisc.Root {
cmd = append(cmd, "root")
}
if qdisc.Ingress {
cmd = append(cmd, "ingress")
}
_, err := shared.RunCommand("tc", cmd...)
if err != nil {
return err
}
return nil
}
// QdiscHTB represents the hierarchy token bucket qdisc object.
type QdiscHTB struct {
Qdisc
Default string
}
// Add adds qdisc to a node.
func (qdisc *QdiscHTB) Add() error {
cmd := qdisc.mainCmd()
cmd = append(cmd, "htb")
if qdisc.Default != "" {
cmd = append(cmd, "default", qdisc.Default)
}
_, err := shared.RunCommand("tc", cmd...)
if err != nil {
return err
}
return nil
}