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Fix GreenRhombus cutting off the final part of response

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This commit is contained in:
Dorian Niemiec 2024-02-21 22:47:07 +01:00
parent d7bae6df69
commit 6f46b52045
1 changed files with 28 additions and 11 deletions
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39
index.js
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@ -250,31 +250,48 @@ function createFastCGIHandler(options) {
}
});
var stdoutPushEvent = new EventEmitter();
function stdoutPush(data) {
var toResume = (stdoutBuffer.length == 0);
if(data === null) {
stdoutToEnd = true;
} else {
stdoutBuffer = Buffer.concat([stdoutBuffer, Buffer.from(data)]);
}
if(toResume) emulatedStdout.resume();
stdoutPushEvent.emit("ready");
emulatedStdout.resume();
}
function stdoutRead(n, callback) {
if(stdoutBuffer.length == 0 && stdoutToEnd) {
callback(Buffer.alloc(0));
} else if(n != 0) {
var handler = function() {
if(n > stdoutBuffer.length && !stdoutToEnd) {
stdoutPushEvent.once("ready", handler);
fs.writeFileSync("/tmp/fai", "");
} else {
var bytesToPush = Math.min(stdoutBuffer.length, n);
var bufferToPush = stdoutBuffer.subarray(0, bytesToPush);
stdoutBuffer = stdoutBuffer.subarray(bytesToPush);
callback(bufferToPush);
}
};
handler();
}
}
var stdoutBuffer = Buffer.alloc(0);
var stdoutToEnd = false;
var emulatedStdout = new stream.Readable({
read: function (n) {
if(stdoutBuffer.length == 0 && stdoutToEnd) {
this.push(null);
} else if (stdoutBuffer.length != 0 && n != 0) {
var bytesToPush = Math.min(stdoutBuffer.length, n);
var bufferToPush = stdoutBuffer.subarray(0, bytesToPush);
stdoutBuffer = stdoutBuffer.subarray(bytesToPush);
this.push(bufferToPush);
}
var s = this;
stdoutRead(n, function(buffer) {
s.push(buffer.length > 0 ? buffer : null);
});
}
});
emulatedStdout.pause();
emulatedStdout.pause(); //Reduce backpressure
var emulatedStderr = new stream.Readable({
read: function () {}