(key: string)
| 66 | } |
| 67 | |
| 68 | function releaseSlot(key: string): void { |
| 69 | const s = semaphores.get(key) |
| 70 | if (!s) return |
| 71 | const next = s.waiters.shift() |
| 72 | if (next) { |
| 73 | next() |
| 74 | return |
| 75 | } |
| 76 | s.available += 1 |
| 77 | if (s.available === s.limit) { |
| 78 | semaphores.delete(key) |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | export class DatabaseJobQueue implements JobQueueBackend { |
| 83 | async enqueue<TPayload>( |