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moving onlineUsers from an in-memory variable to a sorted set

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This commit is contained in:
Julian Lam
2014-11-28 11:49:15 -05:00
parent 033e078aeb
commit e952a873a8
2 changed files with 60 additions and 32 deletions
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88
src/socket.io/index.js
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@@ -26,43 +26,68 @@ var io;
var onlineUsers = [];
process.on('message', onMessage);
// process.on('message', onMessage);
function onMessage(msg) {
if (typeof msg !== 'object') {
return;
}
// function onMessage(msg) {
// if (typeof msg !== 'object') {
// return;
// }
if (msg.action === 'user:connect') {
if (msg.uid && onlineUsers.indexOf(msg.uid) === -1) {
onlineUsers.push(msg.uid);
}
} else if(msg.action === 'user:disconnect') {
if (msg.uid && msg.socketCount <= 1) {
var index = onlineUsers.indexOf(msg.uid);
if (index !== -1) {
onlineUsers.splice(index, 1);
}
}
}
}
// if (msg.action === 'user:connect') {
// if (msg.uid && onlineUsers.indexOf(msg.uid) === -1) {
// onlineUsers.push(msg.uid);
// }
// } else if(msg.action === 'user:disconnect') {
// if (msg.uid && msg.socketCount <= 1) {
// var index = onlineUsers.indexOf(msg.uid);
// if (index !== -1) {
// onlineUsers.splice(index, 1);
// }
// }
// }
// }
function onUserConnect(uid, socketid) {
var msg = {action: 'user:connect', uid: uid, socketid: socketid};
if (process.send) {
process.send(msg);
} else {
onMessage(msg);
}
db.sortedSetIncrBy('onlineUsers', 1, uid, function(err, score) {
if (err) {
return winston.error('[socket.io] Could not add socket id ' + socketid + ' (uid ' + uid + ') to the online users list.');
}
winston.verbose('[socket.io] Socket id ' + socketid + ' (uid ' + uid + ') connect');
});
// var msg = {action: 'user:connect', uid: uid, socketid: socketid};
// if (process.send) {
// process.send(msg);
// } else {
// onMessage(msg);
// }
}
function onUserDisconnect(uid, socketid, socketCount) {
var msg = {action: 'user:disconnect', uid: uid, socketid: socketid, socketCount: socketCount};
if (process.send) {
process.send(msg);
} else {
onMessage(msg);
}
// baris, I no longer use socketCount here, since the zset score is the # of connections, just FYI.
db.sortedSetIncrBy('onlineUsers', -1, uid, function(err, score) {
if (err) {
return winston.error('[socket.io] Could not remove socket id ' + socketid + ' (uid ' + uid + ') from the online users list.');
}
if (parseInt(score, 10) === 0) {
db.sortedSetRemove('onlineUsers', uid, function(err) {
if (err) {
winston.error('[socket.io] Could not remove uid ' + uid + ' from the online users list')
} else {
winston.verbose('[socket.io] Removed uid ' + uid + ' from the online users list, user is now considered offline');
}
});
}
winston.verbose('[socket.io] Socket id ' + socketid + ' (uid ' + uid + ') disconnect');
});
// var msg = {action: 'user:disconnect', uid: uid, socketid: socketid, socketCount: socketCount};
// if (process.send) {
// process.send(msg);
// } else {
// onMessage(msg);
// }
}
Sockets.init = function(server) {
@@ -112,6 +137,9 @@ Sockets.init = function(server) {
});
});
// Clearing the online users sorted set
db.delete('onlineUsers');
io.sockets.on('connection', function(socket) {
var hs = socket.handshake,
sessionID, uid;