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package mount
import (
"time"
)
func GetMounts() ([]*MountInfo, error) {
return parseMountTable()
}
// Looks at /proc/self/mountinfo to determine of the specified
// mountpoint has been mounted
func Mounted(mountpoint string) (bool, error) {
entries, err := parseMountTable()
if err != nil {
return false, err
}
// Search the table for the mountpoint
for _, e := range entries {
if e.Mountpoint == mountpoint {
return true, nil
}
}
return false, nil
}
// Mount the specified options at the target path only if
// the target is not mounted
// Options must be specified as fstab style
func Mount(device, target, mType, options string) error {
if mounted, err := Mounted(target); err != nil || mounted {
return err
}
return ForceMount(device, target, mType, options)
}
// Mount the specified options at the target path
// reguardless if the target is mounted or not
// Options must be specified as fstab style
func ForceMount(device, target, mType, options string) error {
flag, data := parseOptions(options)
if err := mount(device, target, mType, uintptr(flag), data); err != nil {
return err
}
return nil
}
// Unmount the target only if it is mounted
func Unmount(target string) error {
if mounted, err := Mounted(target); err != nil || !mounted {
return err
}
return ForceUnmount(target)
}
// Unmount the target reguardless if it is mounted or not
func ForceUnmount(target string) (err error) {
// Simple retry logic for unmount
for i := 0; i < 10; i++ {
if err = unmount(target, 0); err == nil {
return nil
}
time.Sleep(100 * time.Millisecond)
}
return
}
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