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Improve remote.js and test starts.

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- Transactions now emit 'pending' and 'lost'
- Remote now supports once().
- Tests now use 'ledger_closed' to know when to start.
- Fix quick close of remote.
This commit is contained in:
Arthur Britto
2012-10-17 18:15:04 -07:00
committed by Stefan Thomas
parent a4481dc4d1
commit 8792871e48
1 changed files with 43 additions and 17 deletions
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46
js/remote.js
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@@ -26,13 +26,17 @@ var Amount = amount.Amount;
// 'remoteUnexpected'
// 'remoteDisconnected'
var Request = function (remote, command) {
var self = this;
this.message = {
'command' : command,
'id' : undefined,
};
this.remote = remote;
this.on('request', this.request_default);
this.on('request', function () {
self.request_default();
});
};
Request.prototype = new EventEmitter;
@@ -44,6 +48,12 @@ Request.prototype.on = function (e, c) {
return this;
};
Request.prototype.once = function (e, c) {
EventEmitter.prototype.once.call(this, e, c);
return this;
};
// Send the request to a remote.
Request.prototype.request = function (remote) {
this.emit('request', remote);
@@ -103,7 +113,8 @@ Request.prototype.transaction = function (t) {
// 'state':
// - 'online' : connectted and subscribed
// - 'offline' : not subscribed or not connectted.
// 'ledger_closed'
// 'ledger_closed': A good indicate of ready to serve.
// 'subscribed' : This indicates stand-alone is available.
//
// --> trusted: truthy, if remote is trusted
@@ -296,9 +307,10 @@ Remote.prototype._connect_start = function () {
};
if (self.online_target) {
self._server_subscribe(); // Automatically subscribe.
self._set_state('online');
// Note, we could get disconnected before tis go through.
self._server_subscribe(); // Automatically subscribe.
}
else {
self._connect_stop();
@@ -372,7 +384,7 @@ Remote.prototype._connect_message = function (ws, json, flags) {
this.ledger_closed = message.ledger_closed;
this.ledger_current_index = message.ledger_closed_index + 1;
this.emit('ledger_closed', this.ledger_closed, this.ledger_closed_index);
this.emit('ledger_closed', message.ledger_closed, message.ledger_closed_index);
break;
default:
@@ -409,6 +421,9 @@ Remote.prototype._connect_message = function (ws, json, flags) {
// Send a request.
// <-> request: what to send, consumed.
Remote.prototype.request = function (request) {
if (this.ws) {
// Only bother if we are still connected.
this.ws.response[request.message.id = this.id] = request;
this.id += 1; // Advance id.
@@ -416,6 +431,10 @@ Remote.prototype.request = function (request) {
if (this.trace) console.log("remote: request: %s", JSON.stringify(request.message));
this.ws.send(JSON.stringify(request.message));
}
else {
if (this.trace) console.log("remote: request: DROPPING: %s", JSON.stringify(request.message));
}
};
Remote.prototype.request_ledger_closed = function () {
@@ -480,7 +499,7 @@ Remote.prototype.request_ledger_entry = function (type) {
// This type not cached.
}
this.request_default(remote);
this.request_default();
}
}
});
@@ -668,6 +687,8 @@ Remote.prototype.transaction = function () {
// - The client should only trust this when talking to a trusted server.
// 'final' : Final status of transaction.
// - Only expect a final from honest clients after a tesSUCCESS or ter*.
// 'lost' : Gave up looking for on ledger_closed.
// 'pending' : Transaction was not found on ledger_closed.
// 'state' : Follow the state of a transaction.
// 'clientSubmitted' - Sent to remote
// |- 'remoteError' - Remote rejected transaction.
@@ -802,8 +823,8 @@ Transaction.prototype.submit = function () {
}
}
if (this.listeners('final').length) {
// There are listeners for 'final' arrange to emit it.
if (this.listeners('final').length || this.listeners('lost').length || this.listeners('pending').length) {
// There are listeners for 'final', 'lost', or 'pending' arrange to emit them.
this.submit_index = this.remote.ledger_current_index;
@@ -820,11 +841,16 @@ Transaction.prototype.submit = function () {
if ('remoteError' === message.error
&& 'transactionNotFound' === message.remote.error) {
if (self.submit_index + SUBMIT_LOST < ledger_closed_index) {
self.set_state('clientLost'); // Gave up.
self.set_state('client_lost'); // Gave up.
self.emit('lost');
stop = true;
}
else if (self.submit_index + SUBMIT_MISSING < ledger_closed_index) {
self.set_state('clientMissing'); // We don't know what happened to transaction, still might find.
self.set_state('client_missing'); // We don't know what happened to transaction, still might find.
self.emit('pending');
}
else {
self.emit('pending');
}
}
// XXX Could log other unexpectedness.