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* 在 iOS 平台使用 NSData
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Backpressure is strict by default. When a buffer is full, writes reject rather than silently accumulating. You can configure alternative policies — block until space is available, drop oldest, drop newest — but you have to choose explicitly. No more silent memory growth.
This pattern has caused connection pool exhaustion in Node.js applications using undici (the fetch() implementation built into Node.js), and similar issues have appeared in other runtimes. The stream holds a reference to the underlying connection, and without explicit consumption or cancellation, the connection may linger until garbage collection – which may not happen soon enough under load.
"It's just a lot of extra waste that could be disposed of in a greener way," she said.