Paul Nasrat
0ccbdf155d
Use mountinfo rather than for cgroups parsing. Make helper method private and change name. Makes method naming more explicit rather than GetThisCgroup. Use upstream term subsystem rather than cgroupType. Upstream-commit: c561212b837735213f146c2fac291f84dbcbc8c3 Component: engine
58 lines
1.2 KiB
Go
58 lines
1.2 KiB
Go
package mount
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import (
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"time"
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)
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func GetMounts() ([]*MountInfo, error) {
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return parseMountTable()
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}
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// Looks at /proc/self/mountinfo to determine of the specified
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// mountpoint has been mounted
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func Mounted(mountpoint string) (bool, error) {
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entries, err := parseMountTable()
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if err != nil {
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return false, err
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}
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// Search the table for the mountpoint
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for _, e := range entries {
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if e.Mountpoint == mountpoint {
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return true, nil
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}
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}
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return false, nil
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}
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// Mount the specified options at the target path
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// Options must be specified as fstab style
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func Mount(device, target, mType, options string) error {
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if mounted, err := Mounted(target); err != nil || mounted {
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return err
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}
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flag, data := parseOptions(options)
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if err := mount(device, target, mType, uintptr(flag), data); err != nil {
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return err
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}
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return nil
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}
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// Unmount the target only if it is mounted
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func Unmount(target string) (err error) {
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if mounted, err := Mounted(target); err != nil || !mounted {
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return err
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}
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// Simple retry logic for unmount
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for i := 0; i < 10; i++ {
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if err = unmount(target, 0); err == nil {
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return nil
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}
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time.Sleep(100 * time.Millisecond)
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}
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return
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}
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