PH_P009.md

PH_P009 - Synchronous Dispose in Async Method

Problem

The conventional Dispose of a using statement can be blocking. For example, this can happen if an output buffer was not flushed before disposal.

Solution

The .NET Standard 2.1 introduced the DisposeAsync method as well as the IAsyncDisposable interface for asynchronous disposal. Prefix the using statement with await to invoke the asynchronous version.