27 lines
621 B
JavaScript
27 lines
621 B
JavaScript
const fs = require('node:fs')
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function readMessage() {
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let buffer = Buffer.alloc(4)
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if (fs.readSync(0, buffer, 0, 4, null) !== 4) {
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process.exit(1)
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}
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let messageLength = buffer.readUInt32LE(0)
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let messageBuffer = Buffer.alloc(messageLength)
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fs.readSync(0, messageBuffer, 0, messageLength, null)
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return JSON.parse(messageBuffer.toString())
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}
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function sendMessage(message) {
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let json = JSON.stringify(message)
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let buffer = Buffer.alloc(4 + json.length)
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buffer.writeUInt32LE(json.length, 0)
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buffer.write(json, 4)
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fs.writeSync(1, buffer)
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}
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const message = readMessage()
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sendMessage(message)
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