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package dotlk
import (
"errors"
"io/fs"
"os"
)
// LockShm creates a directory on disk to prevent SQLite
// from using this path for a shared memory file.
func LockShm(name string) error {
err := os.Mkdir(name, 0777)
if errors.Is(err, fs.ErrExist) {
s, err := os.Lstat(name)
if err == nil && s.IsDir() {
return nil
}
}
return err
}
// Unlock removes the lock or shared memory file.
func Unlock(name string) error {
err := os.Remove(name)
if errors.Is(err, fs.ErrNotExist) {
return nil
}
return err
}
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