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added multi process support #4

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added multi process support #4

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ab11fe8
added multi process support
sabyVarghese Feb 15, 2023
b430c76
testing
sabyVarghese Feb 21, 2023
42eac98
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sabyVarghese Feb 21, 2023
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6 changes: 3 additions & 3 deletions src/redisHelper.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -10,11 +10,11 @@ dayjs.extend(UTC);
dayjs.extend(Timezone);
dayjs.extend(AdvancedFormat);

export const logConnectionCount = (language: string, status: ConnectionStatus) => {
export const logConnectionCount = (language: string, status: ConnectionStatus, connectionCounter?: number) => {
const redisKey = `${CONNECTION_STATS}:${language}:${dayjs().tz('Asia/Kolkata').format('YYYY-MM-DDTHH:mm')}`
const totalRedisKey = `${CONNECTION_STATS}:${language}`
if (status === ConnectionStatus.ACTIVE) {
redis.hincrby(redisKey, ACTIVE, 1)
redis.hincrby(redisKey, ACTIVE, connectionCounter)
}
if (status === ConnectionStatus.LANGUAGE_SERVER_IN_USE) {
redis.hincrby(redisKey, LANGUAGE_SERVER_IN_USE, 1)
Expand All @@ -29,7 +29,7 @@ export const logConnectionCount = (language: string, status: ConnectionStatus) =
redis.hincrby(totalRedisKey, INCOMING, 1)
}
if (status === ConnectionStatus.LIVE) {
redis.hincrby(redisKey, LIVE, 1)
redis.hincrby(redisKey, LIVE, connectionCounter)
}
const expiryTimeInSeconds = 60 * 60 * 6;
redis.expire(redisKey, expiryTimeInSeconds, 'NX');
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38 changes: 24 additions & 14 deletions src/server.ts
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Expand Up @@ -53,37 +53,47 @@ function toSocket(webSocket: ws): rpc.IWebSocket {
}
}
const language: string = argv.language
const processCount: number = argv.count || 2
const langServer = languageServers[language]
let connection = null
let localConnection = rpcServer.createServerProcess(`${langServer[0]}LSP`, langServer[0], langServer.slice(1));
let connectionCounter = 1
let processCollection = []
let processInUse = [];
for (var i = 0; i < processCount; i++) {
processCollection.push(rpcServer.createServerProcess(`${langServer[0]}LSP - ${i}`, langServer[0], langServer.slice(1)))
processInUse.push(false)
}
setInterval(() => {
console.log("VALID CONNECTION:", connection != null)
if (connection != null) {
logConnectionCount(language, ConnectionStatus.ACTIVE)
const activeConnections = connectionCounter - 1;
console.log("VALID CONNECTION:", activeConnections)
if (activeConnections > 0) {
logConnectionCount(language, ConnectionStatus.ACTIVE, activeConnections)
}
logConnectionCount(language, ConnectionStatus.LIVE)
logConnectionCount(language, ConnectionStatus.LIVE, processCount)
}, 60000)
wss.on('connection', (client: ws, request: http.IncomingMessage) => {
if (!langServer || !langServer.length) {
console.error('Invalid language server');
client.close();
return;
}
if (connection != null) {
if (connectionCounter > processCount || processInUse.indexOf(false) === -1) {
logConnectionCount(language, ConnectionStatus.LANGUAGE_SERVER_IN_USE)
client.close();
return;
}
let socket: rpc.IWebSocket = toSocket(client);
connection = rpcServer.createWebSocketConnection(socket);
const connectionId = processInUse.indexOf(false)
const socket: rpc.IWebSocket = toSocket(client);
const localConnection = processCollection[connectionId]
const connection = rpcServer.createWebSocketConnection(socket);
processInUse[connectionId] = true
rpcServer.forward(connection, localConnection);
logConnectionCount(language, ConnectionStatus.INCOMING)
console.log("Forwarding new client");
console.log("Forwarding new client: ", connectionId);
connectionCounter++;
socket.onClose((code) => {
console.log('Client closed', code);
connectionCounter--;
console.log('Client closed: ', code, connectionId);
logConnectionCount(language, ConnectionStatus.CLOSED)
connection = null;
localConnection.dispose();
localConnection = rpcServer.createServerProcess(`${langServer[0]}LSP`, langServer[0], langServer.slice(1));
processInUse[connectionId] = false
});
});