73 lines
1.3 KiB
Go
73 lines
1.3 KiB
Go
package fs
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"strconv"
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"strings"
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"github.com/dotcloud/docker/pkg/libcontainer/cgroups"
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)
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type freezerGroup struct {
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}
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func (s *freezerGroup) Set(d *data) error {
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dir, err := d.join("freezer")
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if err != nil {
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if err != cgroups.ErrNotFound {
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return err
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}
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return nil
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}
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if d.c.Freezer != "" {
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if err := writeFile(dir, "freezer.state", d.c.Freezer); err != nil {
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return err
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}
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}
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return nil
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}
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func (s *freezerGroup) Remove(d *data) error {
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return removePath(d.path("freezer"))
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}
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func (s *freezerGroup) Stats(d *data) (map[string]int64, error) {
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var (
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paramData = make(map[string]int64)
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params = []string{
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"parent_freezing",
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"self_freezing",
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// comment out right now because this is string "state",
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}
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)
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path, err := d.path("freezer")
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if err != nil {
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return nil, err
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}
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// TODO(vmarmol): This currently outputs nothing since the output is a string, fix.
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for _, param := range params {
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f, err := os.Open(filepath.Join(path, fmt.Sprintf("freezer.%s", param)))
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if err != nil {
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return nil, err
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}
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defer f.Close()
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data, err := ioutil.ReadAll(f)
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if err != nil {
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return nil, err
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}
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v, err := strconv.ParseInt(strings.TrimSuffix(string(data), "\n"), 10, 64)
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if err != nil {
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return nil, err
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}
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paramData[param] = v
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}
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return paramData, nil
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}
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