// Restore restores the pool to the previously captured state. ErrMismatchedNetwork
// is returned if the provided port range doesn't exactly match the previous range.
func (r *Allocator) Restore(into *mcs.Range, data []byte) error {
if into.String() != r.r.String() {
return ErrMismatchedRange
}
snapshottable, ok := r.alloc.(allocator.Snapshottable)
if !ok {
return fmt.Errorf("not a snapshottable allocator")
}
return snapshottable.Restore(into.String(), data)
}
// New creates a Allocator over a UID range, calling factory to construct the backing store.
func New(r *mcs.Range, factory allocator.AllocatorFactory) *Allocator {
return &Allocator{
r: r,
alloc: factory(int(r.Size()), r.String()),
}
}