PipeWriter.CopyFromAsync(Stream, CancellationToken) 方法
定义
从指定的流中异步读取字节并将其写入到 PipeWriter 中。Asynchronously reads the bytes from the specified stream and writes them to the PipeWriter.
protected internal virtual System.Threading.Tasks.Task CopyFromAsync (System.IO.Stream source, System.Threading.CancellationToken cancellationToken = default);
abstract member CopyFromAsync : System.IO.Stream * System.Threading.CancellationToken -> System.Threading.Tasks.Task
override this.CopyFromAsync : System.IO.Stream * System.Threading.CancellationToken -> System.Threading.Tasks.Task
Protected Friend Overridable Function CopyFromAsync (source As Stream, Optional cancellationToken As CancellationToken = Nothing) As Task
参数
- source
- Stream
将从中复制内容的流。The stream from which the contents will be copied.
- cancellationToken
- CancellationToken
要监视取消请求的标记。The token to monitor for cancellation requests. 默认值为 None。The default value is None.
返回
表示异步复制操作的任务。A task that represents the asynchronous copy operation.