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fix missing messages when multiple messages are read at once #8

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fix missing messages when multiple messages are read at once #8

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29 changes: 17 additions & 12 deletions protocol.js
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Original file line number Diff line number Diff line change
@@ -1,21 +1,26 @@
var input = Buffer.from([]);

module.exports = (handleMessage) => {

process.stdin.on('readable', () => {
var input = []
var chunk
var chunks = [input];
var chunk;
while (chunk = process.stdin.read()) {
input.push(chunk)
chunks.push(chunk)
}
input = Buffer.concat(input)

var msgLen = input.readUInt32LE(0)
var dataLen = msgLen + 4

if (input.length >= dataLen) {
var content = input.slice(4, dataLen)
var json = JSON.parse(content.toString())
handleMessage(json)
input = Buffer.concat(chunks)
while (input.length >= 4) {
var msgLen = input.readUInt32LE(0)
var dataLen = msgLen + 4

if (input.length >= dataLen) {
var content = input.slice(4, dataLen)
var json = JSON.parse(content.toString())
handleMessage(json)
input = input.slice(dataLen);
} else {
break;
}
}
})

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