Instead of filtering syscalls to the host kernel, gVisor interposes a completely separate kernel implementation called the Sentry between the untrusted code and the host. The Sentry does not access the host filesystem directly; instead, a separate process called the Gofer handles file operations on the Sentry’s behalf, communicating over a restricted protocol. This means even the Sentry’s own file access is mediated.
还有另一个问题，我相信大部分 Mac 用户都不喜欢别人用手指戳自己的电脑屏幕。MacBook 屏幕的「娇气」几乎可以和它的高素质齐名。如果直接频繁触碰屏幕，很容易对表面涂层造成损伤。。91视频是该领域的重要参考
``@receiver isNil ifTrue: ``@nilBlock -> ``@receiver ifNil: ``@nilBlockOr maybe with single backticks?，推荐阅读Line官方版本下载获取更多信息
Maybe we can pass in an estimated length?
byobRequest.respond(bytesToWrite);