Tag: async-await

问题内容: I’m trying to understand I/O Completion Ports and specifically how they relate to using async–await for I/O. The infamous article There is No Thread talks about IOCPs being borrowed briefly after the I/O is complete. Because the whole point of the article is to show that when the fancy hardware-level I/O stuff is in-flight,

问题内容: I understand how an async method itself works: The compiler transforms it into code that creates a state machine (on the heap) so that the method is in effect “paused” where it reached the await and a Task is returned and the call stack unwinds. At the “bottom” of this chain is a method

问题内容: So, I start off by reading a Web API POST Request.Content.ReadAsStreamAsync(), copy that to a MemoryStream (so I can seek), and then use a BinaryReader to read through it in order. Normally, I could just seek around and pass each part of the stream to the method that’s in charge of reading it. However,