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go-cgroup
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2 Bugfixes plus minor readability fix in main 

* correct type of Cgroup.g
* fix GetAllControllers, ECGEOF is indicator of end already reached so
  don't append cd again
This commit is contained in:
Sjon Hortensius 2015-12-06 14:09:38 +01:00
parent 70e3da7eb3
commit 599fa1f9ff
2 changed files with 16 additions and 18 deletions
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14
cg.go
View File

@ -21,7 +21,7 @@ Structure describing one or more control groups. The structure is opaque to
applications.
*/
type Cgroup struct {
g *C.struct_group
g *C.struct_cgroup
}
func NewCgroup(name string) Cgroup {
@ -482,12 +482,14 @@ func GetAllControllers() (controllers []ControllerData, err error) {
controllers = append(controllers, fromCControllerData(cd))
for {
err = _err(C.cgroup_get_all_controller_next(&handle, &cd))
if err != nil && err != ECGEOF {
if err != nil {
if err == ECGEOF {
break
}
return controllers, err
}
controllers = append(controllers, fromCControllerData(cd))
if err == ECGEOF {
break
} else {
controllers = append(controllers, fromCControllerData(cd))
}
}
return controllers, nil

20
main.go
View File

@ -1,34 +1,30 @@
// cmpout
// +build ignore
package main
import (
"."
"."
"fmt"
)
func main() {
cgroup.Init()
fmt.Println(cgroup.DeleteIgnoreMigration)
fmt.Println(cgroup.DeleteIgnoreMigration|cgroup.DeleteEmptyOnly)
g := cgroup.NewCgroup("foo")
c := g.AddController("bar")
fmt.Printf("%#v\n", c)
c = g.GetController("bar")
fmt.Printf("%#v\n", c)
g := cgroup.NewCgroup("foo")
c := g.AddController("bar")
fmt.Printf("%#v\n", c)
c = g.GetController("bar")
fmt.Printf("%#v\n", c)
g.SetPermissions(cgroup.Mode(0777), cgroup.Mode(0777), cgroup.Mode(0777))
g.SetPermissions(cgroup.Mode(0777), cgroup.Mode(0777), cgroup.Mode(0777))
//fmt.Println(cgroup.GetSubSysMountPoint("cpu"))
ctls, err := cgroup.GetAllControllers()
if err != nil {
fmt.Println(err)
return
}
for i := range ctls {
fmt.Println(ctls[i])
fmt.Printf("Hierarchy=%d Enabled=%d NumCgroups=%d Name=%s\n", ctls[i].Hierarchy, ctls[i].Enabled, ctls[i].NumCgroups, ctls[i].Name)
}
}