Method push

lib/stream-id-stack.js:123–134

* Enqueue an id for future use. * Similar to Array#push(). * @param {Number} id

(id)

   * @param {Number} id
   */
  push(id) {
    this.inUse--;
    const groupIndex = id >> shiftToGroup;
    const group = this.groups[groupIndex];
    group.push(id);
    if (groupIndex < this.groupIndex) {
      //Set the lower group to be used to dequeue from
      this.groupIndex = groupIndex;
      this.currentGroup = group;
    }
    this._tryIssueRelease();
  }

  /**
   * Clears all timers