/// <summary>
/// 添加要清除的httpHandler
/// </summary>
/// <param name="handler">httpHandler</param>
public void Add(LifetimeHttpHandler handler)
{
var entry = new TrackingEntry(handler);
this.trackingEntries.Enqueue(entry);
// 从0变为1，要启动清理作业
if (Interlocked.Increment(ref this.trackingEntryCount) == 1)
{
this.StartCleanup();
}
}
/// <summary>
/// 当有httpHandler失效时
/// </summary>
/// <param name="handler">httpHandler</param>
private void OnHttpHandlerDeactivate(LifetimeHttpHandler handler)
{
// 切换激活状态的记录的实例
this.lifeTimeHttpHandlerLazy = new Lazy <LifetimeHttpHandler>(this.CreateHttpHandler, true);
this.httpHandlerCleaner.Add(handler);
}
/// <summary>
/// 监视生命周期的记录
/// </summary>
/// <param name="handler">激活状态的httpHandler</param>
public TrackingEntry(LifetimeHttpHandler handler)
{
this.disposable = handler.InnerHandler;
this.weakReference = new WeakReference(handler);
}
