返回pop列表和实际长度
(num int)
| 43 | |
| 44 | //返回pop列表和实际长度 |
| 45 | func (q *Queue) Pops(num int) ([]interface{}, int) { |
| 46 | vals := make([]interface{}, num) |
| 47 | i := 0 |
| 48 | q.l.Lock() |
| 49 | defer q.l.Unlock() |
| 50 | for { |
| 51 | if i >= num { |
| 52 | break |
| 53 | } |
| 54 | iter := q.data.Back() |
| 55 | if iter == nil { |
| 56 | return vals, i |
| 57 | } |
| 58 | q.data.Remove(iter) |
| 59 | vals[i] = iter.Value |
| 60 | i++ |
| 61 | } |
| 62 | if i < num { |
| 63 | return vals[0:i], i |
| 64 | } |
| 65 | return vals, i |
| 66 | } |
| 67 | |
| 68 | func (q *Queue) Remove(v *list.Element) (interface{}) { |
| 69 | q.l.Lock() |