node.js - NodeJS 流 ReadableState

Question

NodeJS 文档提到了流动/非流动模式(在 ReadableState 中)。以下摘录进一步解释了可读流一次可能处于的不同可能状态。 ( https://nodejs.org/api/stream.html#stream_three_states )

Specifically, at any given point in time, every Readable is in one of three possible states:

readable._readableState.flowing = null
readable._readableState.flowing = false
readable._readableState.flowing = true

如果有任何提供更多解释的引用资料，我将不胜感激。我特别好奇每个州的特征/行为；哪些操作会触发不同状态之间的转换？此外。

• 如果我没记错的话，在流动模式下:流主动生成数据，而在非流动模式下:流不会生成任何数据，直到 r.read(size)叫做。

• 非流动模式和暂停模式有什么区别吗？ r.isPaused()当 _readableState.flowing == null 时为 false 。

Answer 1

最好的选择可能是在 github 上搜索“flowing”的源代码/存储库。

Readable streams effectively operate in one of two modes: flowing and paused. When in flowing mode, data is read from the underlying system automatically and provided to an application as quickly as possible using events via the … explicitly to read chunks of data from the stream. All [Readable][] streams begin in paused mode but can be switched to flowing

https://github.com/nodejs/node/search?q=flowing&type=Code&utf8=%E2%9C%93