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Code Issues Releases Wiki Activity

improved some of the logs for pausing/resuming

This commit is contained in:
tigerbot 2017-09-11 14:52:49 -06:00
parent f945f0b496
commit d5992f001f
1 changed files with 37 additions and 8 deletions
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45
wsclient.js
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@ -14,7 +14,7 @@ function timeoutPromise(duration) {
function run(copts) {
// jshint latedef:false
var activityTimeout = copts.activityTimeout || 2*60*1000;
var activityTimeout = copts.activityTimeout || (2*60 - 5)*1000;
var pongTimeout = copts.pongTimeout || 10*1000;
// Allow the tunnel client to be created with no token. This will prevent the connection from
// being established initialy and allows the caller to use `.append` for the first token so
@ -34,11 +34,17 @@ function run(copts) {
localclients[cid] = conn;
console.info("[connect] new client '" + cid + "' for '" + servername + "' (" + clientHandlers.count() + " clients)");
conn.tunnelCid = cid;
conn.tunnelRead = opts.data.byteLength;
conn.tunnelWritten = 0;
conn.on('data', function onLocalData(chunk) {
if (conn.tunnelClosing) {
console.warn("[onLocalData] received data for '"+cid+"' over socket after connection was ended");
return;
}
// This value is bytes written to the tunnel (ie read from the local connection)
conn.tunnelWritten += chunk.byteLength;
// If we have a lot of buffered data waiting to be sent over the websocket we want to slow
// down the data we are getting to send over. We also want to pause all active connections
@ -51,14 +57,30 @@ function run(copts) {
pausedClients.push(conn);
}
});
var sentEnd = false;
conn.on('end', function onLocalEnd() {
console.info("[onLocalEnd] connection '" + cid + "' ended, will probably close soon");
conn.tunnelClosing = true;
if (!sentEnd) {
wsHandlers.sendMessage(Packer.pack(opts, null, 'end'));
sentEnd = true;
}
});
conn.on('error', function onLocalError(err) {
console.info("[onLocalError] connection '" + cid + "' errored:", err);
// The 'close' event should fire soon, so let that send on the websocket
if (!sentEnd) {
wsHandlers.sendMessage(Packer.pack(opts, {message: err.message, code: err.code}, 'error'));
sentEnd = true;
}
});
conn.on('close', function onLocalClose(hadErr) {
delete localclients[cid];
console.log('[onLocalClose] closed "' + cid + '" (' + clientHandlers.count() + ' clients)');
wsHandlers.sendMessage(Packer.pack(opts, null, hadErr && 'error' || 'end'));
console.log('[onLocalClose] closed "' + cid + '" read:'+conn.tunnelRead+', wrote:'+conn.tunnelWritten+' (' + clientHandlers.count() + ' clients)');
if (!sentEnd) {
wsHandlers.sendMessage(Packer.pack(opts, null, hadErr && 'error' || 'end'));
sentEnd = true;
}
});
}
@ -81,6 +103,9 @@ function run(copts) {
wsHandlers.sendMessage(Packer.pack(opts, null, 'resume'));
});
}
// It might seem weird to increase the "read" value in a function named `write`, but this
// is bytes read from the tunnel and written to the local connection.
conn.tunnelRead += opts.data.byteLength;
return true;
}
@ -305,22 +330,26 @@ function run(copts) {
, onpause: function (opts) {
var cid = Packer.addrToId(opts);
console.log('[TunnelPause]', cid);
if (localclients[cid]) {
console.log("[TunnelPause] pausing '"+cid+"', remote received", opts.data.toString(), 'of', localclients[cid].tunnelWritten, 'sent');
localclients[cid].manualPause = true;
localclients[cid].pause();
} else {
wsHandlers.sendMessage(Packer.pack(opts, {message: 'no matching connection', code: 'E_NO_CONN'}, 'error'));
console.log('[TunnelPause] remote tried pausing finished connection', cid);
// Often we have enough latency that we've finished sending before we're told to pause, so
// don't worry about sending back errors, since we won't be sending data over anyway.
// wsHandlers.sendMessage(Packer.pack(opts, {message: 'no matching connection', code: 'E_NO_CONN'}, 'error'));
}
}
, onresume: function (opts) {
var cid = Packer.addrToId(opts);
console.log('[TunnelResume]', cid);
if (localclients[cid]) {
console.log("[TunnelResume] resuming '"+cid+"', remote received", opts.data.toString(), 'of', localclients[cid].tunnelWritten, 'sent');
localclients[cid].manualPause = false;
localclients[cid].resume();
} else {
wsHandlers.sendMessage(Packer.pack(opts, {message: 'no matching connection', code: 'E_NO_CONN'}, 'error'));
console.log('[TunnelResume] remote tried resuming finished connection', cid);
// wsHandlers.sendMessage(Packer.pack(opts, {message: 'no matching connection', code: 'E_NO_CONN'}, 'error'));
}
}