小编And*_*rov的帖子

我在项目代码中找到了以下双锁检查实现:

  public class SomeComponent
  {
    private readonly object mutex = new object();

    public SomeComponent()
    {
    }

    public bool IsInitialized { get; private set; }

    public void Initialize()
    {
        this.InitializeIfRequired();
    }

    protected virtual void InitializeIfRequired()
    {
        if (!this.OnRequiresInitialization())
        {
            return;
        }

        lock (this.mutex)
        {
            if (!this.OnRequiresInitialization())
            {
                return;
            }

            try
            {
                this.OnInitialize();
            }
            catch (Exception)
            {
                throw;
            }

            this.IsInitialized = true;
        }
    }

    protected virtual void OnInitialize()
    {
        //some code here
    }

    protected virtual bool OnRequiresInitialization()
    {
        return !this.IsInitialized;
    }
} …