我如何与QUOT;叉"在.NET中流？ [英] How do I "fork" a Stream in .NET?

问题描述

由于 之前讨论的，当一个BinaryReader或得到的BinaryWriter关闭，它的基本流中获取关闭以及（AARGH）。考虑这种情况：研究传递一个MemoryStream一个套路，说 M ;我想写一些东西 M ，然后将它传递给另一个例程更多的处理（不一定是书面）。为方便起见，我想换行 M 中的BinaryWriter做我的写作。写完后，我用的BinaryWriter做，但不能与 M 。

As discussed before, when a BinaryReader or BinaryWriter gets closed, its underlying Stream get closed as well (aargh). Consider this situation: a routine R is passed a MemoryStream, say M; I would like to write some stuff to M and then pass it to another routine for more processing (not necessarily writing). For convenience, I'd like to wrap M in a BinaryWriter to do my writing. After writing, I'm done with the BinaryWriter but not with M.

void R(MemoryStream M)
{
    using (B = new BinaryWriter(M))
    {
        // write some stuff using B
    }

    S(M);  // now pass M to another routine for further processing
}

不过，我可以' ŧ处置BinaryStream的，但不关闭 M 。

问：有没有办法做任何以下

Q: Is there a way to do any of the following?

• 的？从一个MemoryStream提取基础的byte []


• 克隆流


• 重新打开一个流，它已经关闭后，

推荐答案

由于几个谁建议ToArray的，我被带到正确的答案，这是'M.GetBuffer。 ToArray的是不是太糟糕，但它

Thanks to several who suggested ToArray, I was led to right answer, which is `M.GetBuffer'. ToArray is not too bad, but it

• 进行复印


• 仅获取缓冲区的一部分

的GetBuffer只是抓住底层字节[]，这是我追求的参考。

GetBuffer just grabs a reference to the underlying byte[], which is what I'm after.

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