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Removed most closures.
  • Loading branch information
mcollina committed Dec 5, 2016
commit 16e0c239bba5ee8426cbb22d7363fc74f2243f0b
104 changes: 49 additions & 55 deletions lib/internal/http2.js
Original file line number Diff line number Diff line change
Expand Up @@ -312,99 +312,79 @@ class Http2Stream extends Duplex {
if (this._handle) {
this._handle.setLocalWindowSize(size);
} else {
this.once('handle', () => {
this._handle.setLocalWindowSize(size);
});
this.once('handle', this.setLocalWindowSize.bind(this, size));
}
}

changeStreamPriority(parentId, priority, exclusive) {
if (this._handle) {
this._handle.changeStreamPriority(parentId, priority, exclusive);
} else {
this.once('handle', () => {
this._handle.changeStreamPriority(parentId, priority, exclusive);
});
this.once('handle', this.changeStreamPriority.bind(this, parentId, priority, exclusive));
}
}

respond() {
if (this._handle) {
this._handle.respond();
} else {
this.once('handle', () => {
this._handle.respond();
});
this.once('handle', onHandleRespond);
}
}

resume() {
if (this._handle) {
this._handle.resume();
} else {
this.once('handle', () => {
this._handle.resume();
});
this.once('handle', onHandleResume);
}
}

sendContinue() {
if (this._handle) {
this._handle.sendContinue();
} else {
this.once('handle', () => {
this._handle.sendContinue();
});
this.once('handle', this.sendContinue.bind(this));
}
}

sendPriority(parentId, priority, exclusive) {
if (this._handle) {
this._handle.sendPriority(parentId, priority, exclusive);
} else {
this.once('handle', () => {
this._handle.sendPriority(parentId, priority, exclusive);
});
this.once('handle', this.sendPriority.bind(this, parentId, priority, exclusive));
}
}

sendRstStream(code) {
if (this._handle) {
this._handle.sendRstStream(code);
} else {
this.once('handle', () => {
this._handle.sendRstStream(code);
});
this.once('handle', this.sendRstStream.bind(this, code));
}
}

sendPushPromise(headers) {
if (this._handle) {
return this._handle.sendPushPromise(mapToHeaders(headers));
} else {
this.once('handle', () => {
this._handle.sendPushPromise(mapToHeaders(headers));
});
this.once('handle', this.sendPushPromise.bind(this, headers));
}
}

addHeader(name, value, noindex) {
if (this._handle) {
this._handle.addHeader(name, value, noindex);
} else {
this.once('handle', () => {
this._handle.addHeader(name, value, noindex);
});
this.once('handle', this.addHeader.bind(this, name, value, noindex));
}
}

addTrailer(name, value, noindex) {
if (this._handle) {
this._handle.addTrailer(name, value, noindex);
} else {
this.once('handle', () => {
this._handle.addTrailer(name, value, noindex);
});
this.once('handle', this.addTrailer.bind(this, name, value, noindex));
}
}

Expand Down Expand Up @@ -464,29 +444,41 @@ class Http2Stream extends Duplex {
if (this._handle) {
this._handle.finishedWriting();
} else {
this.on('handle', () => {
this._handle.finishedWriting();
});
this.on('handle', onHandleFinishedWriting);
}
}

_read(n) {
if (this._handle) {
this._handle.readStart();
} else {
this.once('handle', () => {
this._handle.readStart();
});
this.once('handle', onHandleReadStart);
}
}
}

function onHandleReadStart() {
this._handle.readStart();
}

function onHandleFinishedWriting() {
this._handle.finishedWriting();
}

function onHandleWrite(data, encoding, cb) {
return function onWriteFinished() {
this._write(data, encoding, cb);
};
}

function onHandleRespond() {
this._handle.respond();
}

function onHandleResume() {
this._handle.resume();
}

class Http2Session extends EventEmitter {
constructor(type, options, socket) {
super();
Expand All @@ -495,6 +487,7 @@ class Http2Session extends EventEmitter {
this[kHandle] = sessions.alloc();
this[kHandle][kOwner] = this;
this[kHandle].reinitialize(type, options, socket._handle._externalStream);
this[kSocket] = socket;
}

reset() {
Expand Down Expand Up @@ -1103,28 +1096,29 @@ function sessionOnStreamClose(stream, code) {
response[kStream] = undefined;
stream[kRequest] = undefined;
stream[kResponse] = undefined;
setImmediate(() => maybeDestroyStream(stream));
setImmediate(maybeDestroyStream, stream);
}

function sessionOnError(server, socket) {
function fn(error) {
if (server.listenerCount('sessionError') > 0) {
server.emit('sessionError', error);
return;
}
socket.destroy(error);
function sessionOnError() {
const session = this;
const server = session[kServer];
const socket = session[kSocket];

if (server.listenerCount('sessionError') > 0) {
server.emit('sessionError', error);
return;
}
return fn;
socket.destroy(error);
}

function socketOnTimeout(server, session) {
function fn() {
if (!server.emit('timeout', this)) {
// Session timed out, attempt a graceful exit
session.gracefulTerminate(() => this.destroy());
}
function socketOnTimeout() {
const socket = this;
const server = socket[kServer];

if (!server.emit('timeout', this)) {
// Session timed out, attempt a graceful exit
session.gracefulTerminate(this.destroy.bind(this));
}
return fn;
}

function socketOnceError(error) {
Expand Down Expand Up @@ -1248,7 +1242,7 @@ function connectionListener(socket) {
session[kServer] = this;
socket[kServer] = this;

session.on('error', sessionOnError(this, socket));
session.on('error', sessionOnError);

// Disable TLS Negotiation on this socket. The HTTP/2 allows renegotiation to
// happen up until the initial HTTP/2 session bootstrap. After that, it is
Expand All @@ -1259,7 +1253,7 @@ function connectionListener(socket) {
// Set up the timeout listener
if (this.timeout)
socket.setTimeout(this.timeout);
socket.on('timeout', socketOnTimeout(this, session));
socket.on('timeout', socketOnTimeout);

// Destroy the session if the socket is destroyed
const destroySocket = socket.destroy;
Expand Down Expand Up @@ -1442,7 +1436,7 @@ function clientSessionOnStreamClose(stream, code) {
response[kStream] = undefined;
stream[kRequest] = undefined;
stream[kResponse] = undefined;
setImmediate(() => maybeDestroyStream(stream));
setImmediate(maybeDestroyStream, stream);
}

function initializeClientOptions(options) {
Expand Down