()
| 72 | } |
| 73 | |
| 74 | func (c *operatorCache) free() { |
| 75 | lock(&c.freelocked) |
| 76 | defer unlock(&c.freelocked) |
| 77 | if len(c.freelist) == 0 { |
| 78 | return |
| 79 | } |
| 80 | |
| 81 | lock(&c.locked) |
| 82 | for _, idx := range c.freelist { |
| 83 | op := c.cache[idx] |
| 84 | op.next = c.first |
| 85 | c.first = op |
| 86 | } |
| 87 | c.freelist = c.freelist[:0] |
| 88 | unlock(&c.locked) |
| 89 | } |
| 90 | |
| 91 | func lock(locked *int32) { |
| 92 | for !atomic.CompareAndSwapInt32(locked, 0, 1) { |