Method teardown

src/childBridgeService.ts:690–710

* Send sigterm to the child bridge, escalating to sigkill if the child * does not exit within 10 seconds.

()

   * does not exit within 10 seconds.
   */
  private teardown(): void {
    // Remove the api shutdown listener so this service can be GC'd.
    this.api.removeListener('shutdown', this._onApiShutdown)
    this.api.setMaxListeners(Math.max(0, this.api.getMaxListeners() - 1))

    if (this.child && this.child.connected) {
      this.bridgeStatus = ChildBridgeStatus.DOWN
      const child = this.child
      child.kill('SIGTERM')
      // If the child has not exited within 10s, escalate to SIGKILL.
      // The 'close' handler will clear this in the normal-exit path because
      // child.connected becomes false before close fires.
      const sigkillTimer = setTimeout(() => {
        if (child.connected) {
          this.log.warn('Child bridge did not exit within 10s of SIGTERM; escalating to SIGKILL.')
          child.kill('SIGKILL')
        }
      }, 10000)
      sigkillTimer.unref()
    }
  }

  /**
   * Trigger sending child bridge metadata to the process parent via IPC