| 56 | } |
| 57 | |
| 58 | private dispatch(slot: WorkerSlot, task: WorkerTask<T>): void { |
| 59 | slot.busy = true; |
| 60 | |
| 61 | const handleMessage = (e: MessageEvent) => { |
| 62 | slot.worker.removeEventListener("message", handleMessage); |
| 63 | slot.worker.removeEventListener("error", handleError); |
| 64 | slot.busy = false; |
| 65 | task.resolve(e.data as T); |
| 66 | this.dequeue(); |
| 67 | }; |
| 68 | |
| 69 | const handleError = (e: ErrorEvent) => { |
| 70 | slot.worker.removeEventListener("message", handleMessage); |
| 71 | slot.worker.removeEventListener("error", handleError); |
| 72 | slot.busy = false; |
| 73 | task.reject(new Error(e.message)); |
| 74 | this.dequeue(); |
| 75 | }; |
| 76 | |
| 77 | slot.worker.addEventListener("message", handleMessage); |
| 78 | slot.worker.addEventListener("error", handleError); |
| 79 | |
| 80 | if (task.transferables?.length) { |
| 81 | slot.worker.postMessage(task.payload, task.transferables); |
| 82 | } else { |
| 83 | slot.worker.postMessage(task.payload); |
| 84 | } |
| 85 | } |
| 86 | |
| 87 | private dequeue(): void { |
| 88 | if (!this.queue.length) return; |