@thi.ng/rstream/timeout.js

Reactive streams & subscription primitives for constructing dataflow graphs / pipelines

import { State } from "./api.js";
import { __optsWithID } from "./idgen.js";
import { Subscription } from "./subscription.js";
const timeout = (timeoutMs, opts) => new Timeout(timeoutMs, opts);
class Timeout extends Subscription {
  timeoutMs;
  timeoutId;
  errorObj;
  resetTimeout;
  constructor(timeoutMs, opts) {
    opts = __optsWithID("timeout", opts);
    super(void 0, opts);
    this.timeoutMs = timeoutMs;
    this.errorObj = opts.error;
    this.resetTimeout = opts.reset === true;
    this.reset();
  }
  next(x) {
    if (this.resetTimeout) {
      clearTimeout(this.timeoutId);
      this.reset();
    }
    super.next(x);
  }
  reset() {
    this.timeoutId = setTimeout(() => {
      if (this.state < State.DONE) {
        this.dispatchTo(
          "error",
          this.errorObj || new Error(
            `Timeout '${this.id}' after ${this.timeoutMs} ms`
          )
        );
      }
    }, this.timeoutMs);
  }
  release() {
    clearTimeout(this.timeoutId);
    super.release();
  }
}
export {
  timeout
};