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fix: fix the linux patch #2703

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Feb 6, 2024
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22 changes: 8 additions & 14 deletions lib/fetch/index.js
Original file line number Diff line number Diff line change
Expand Up @@ -1099,16 +1099,12 @@ function fetchFinale (fetchParams, response) {

const byteStream = new ReadableStream({
readableStream: transformStream.readable,
async start () {
this._bodyReader = this.readableStream.getReader()
},
async pull (controller) {
// TODO(mcollina): removen this block, not sure why pull() is called twice
if (this.readableStream.locked) {
return
}

const reader = this.readableStream.getReader()

while (controller.desiredSize >= 0) {
const { done, value } = await reader.read()
const { done, value } = await this._bodyReader.read()

if (done) {
queueMicrotask(() => readableStreamClose(controller))
Expand Down Expand Up @@ -1910,8 +1906,8 @@ async function httpNetworkFetch (

// 11. Let pullAlgorithm be an action that resumes the ongoing fetch
// if it is suspended.
const pullAlgorithm = () => {
fetchParams.controller.resume()
const pullAlgorithm = async () => {
await fetchParams.controller.resume()
Comment on lines +1909 to +1910
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@Uzlopak Uzlopak Feb 6, 2024

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While debugging I realized that we call pullAlgorithm with an await but as pullAlgorithm is not an async function it basically "decouples" the promise logic and the await is pointless.

await pullAlgorithm(controller)

So with this change the await pullAlgorithm will actually have something to await.

}

// 12. Let cancelAlgorithm be an algorithm that aborts fetchParams’s
Expand Down Expand Up @@ -2026,9 +2022,7 @@ async function httpNetworkFetch (
// into stream.
const buffer = new Uint8Array(bytes)
if (buffer.byteLength) {
try {
fetchParams.controller.controller.enqueue(buffer)
} catch {}
fetchParams.controller.controller.enqueue(buffer)
}

// 8. If stream is errored, then terminate the ongoing fetch.
Expand All @@ -2039,7 +2033,7 @@ async function httpNetworkFetch (

// 9. If stream doesn’t need more data ask the user agent to suspend
// the ongoing fetch.
if (!fetchParams.controller.controller.desiredSize) {
if (fetchParams.controller.controller.desiredSize <= 0) {
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According to MDN desiredSize can go negative if the stream is oversaturized. !(-1) is false. And if desiredSize is 0, then we know we can not push data, anyway. 0 would actually mean, that the stream is closed. So is my change correct?

return
}
}
Expand Down
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