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Diffstat (limited to 'dom/webidl/TCPSocket.webidl')
-rw-r--r-- | dom/webidl/TCPSocket.webidl | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/dom/webidl/TCPSocket.webidl b/dom/webidl/TCPSocket.webidl new file mode 100644 index 000000000..42c6c2f73 --- /dev/null +++ b/dom/webidl/TCPSocket.webidl @@ -0,0 +1,210 @@ +/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/** + * TCPSocket exposes a TCP client socket (no server sockets yet) + * to highly privileged apps. It provides a buffered, non-blocking + * interface for sending. For receiving, it uses an asynchronous, + * event handler based interface. + */ + +enum TCPSocketBinaryType { + "arraybuffer", + "string" +}; + +dictionary SocketOptions { + boolean useSecureTransport = false; + TCPSocketBinaryType binaryType = "string"; +}; + +enum TCPReadyState { + "connecting", + "open", + "closing", + "closed", +}; + +[NoInterfaceObject] +interface LegacyMozTCPSocket { + /** + * Legacy constructor for API compatibility. + */ + [Throws] + TCPSocket open(DOMString host, unsigned short port, optional SocketOptions options); + + [Throws] + TCPServerSocket listen(unsigned short port, optional ServerSocketOptions options, optional unsigned short backlog = 0); +}; + +[Constructor(DOMString host, unsigned short port, optional SocketOptions options), + Func="mozilla::dom::TCPSocket::ShouldTCPSocketExist", + Exposed=(Window,System)] +interface TCPSocket : EventTarget { + /** + * Upgrade an insecure connection to use TLS. Throws if the ready state is not OPEN. + */ + [Throws] void upgradeToSecure(); + + /** + * The UTF16 host of this socket object. + */ + readonly attribute USVString host; + + /** + * The port of this socket object. + */ + readonly attribute unsigned short port; + + /** + * True if this socket object is an SSL socket. + */ + readonly attribute boolean ssl; + + /** + * The number of bytes which have previously been buffered by calls to + * send on this socket. + */ + readonly attribute unsigned long long bufferedAmount; + + /** + * Pause reading incoming data and invocations of the ondata handler until + * resume is called. Can be called multiple times without resuming. + */ + void suspend(); + + /** + * Resume reading incoming data and invoking ondata as usual. There must be + * an equal number of resume as suspends that took place. Throws if the + * socket is not suspended. + */ + [Throws] + void resume(); + + /** + * Close the socket. + */ + void close(); + + /** + * Close the socket immediately without waiting for unsent data. + */ + [ChromeOnly] void closeImmediately(); + + /** + * Write data to the socket. + * + * @param data The data to write to the socket. + * + * @return Send returns true or false as a hint to the caller that + * they may either continue sending more data immediately, or + * may want to wait until the other side has read some of the + * data which has already been written to the socket before + * buffering more. If send returns true, then less than 64k + * has been buffered and it's safe to immediately write more. + * If send returns false, then more than 64k has been buffered, + * and the caller may wish to wait until the ondrain event + * handler has been called before buffering more data by more + * calls to send. + * + * @throws Throws if the ready state is not OPEN. + */ + [Throws] + boolean send(ByteString data); + + /** + * Write data to the socket. + * + * @param data The data to write to the socket. + * @param byteOffset The offset within the data from which to begin writing. + * @param byteLength The number of bytes to write. + * Defaults to the byte length of the ArrayBuffer if not present, + * and clamped to (length - byteOffset). + * + * @return Send returns true or false as a hint to the caller that + * they may either continue sending more data immediately, or + * may want to wait until the other side has read some of the + * data which has already been written to the socket before + * buffering more. If send returns true, then less than 64k + * has been buffered and it's safe to immediately write more. + * If send returns false, then more than 64k has been buffered, + * and the caller may wish to wait until the ondrain event + * handler has been called before buffering more data by more + * calls to send. + * + * @throws Throws if the ready state is not OPEN. + */ + [Throws] + boolean send(ArrayBuffer data, optional unsigned long byteOffset = 0, optional unsigned long byteLength); + + /** + * The readyState attribute indicates which state the socket is currently + * in. + */ + readonly attribute TCPReadyState readyState; + + /** + * The binaryType attribute indicates which mode this socket uses for + * sending and receiving data. If the binaryType: "arraybuffer" option + * was passed to the open method that created this socket, binaryType + * will be "arraybuffer". Otherwise, it will be "string". + */ + readonly attribute TCPSocketBinaryType binaryType; + + /** + * The "open" event is dispatched when the connection to the server + * has been established. If the connection is refused, the "error" event + * will be dispatched, instead. + */ + attribute EventHandler onopen; + + /** + * After send has buffered more than 64k of data, it returns false to + * indicate that the client should pause before sending more data, to + * avoid accumulating large buffers. This is only advisory, and the client + * is free to ignore it and buffer as much data as desired, but if reducing + * the size of buffers is important (especially for a streaming application) + * the "drain" event will be dispatched once the previously-buffered data has + * been written to the network, at which point the client can resume calling + * send again. + */ + attribute EventHandler ondrain; + + /** + * The "data" event will be dispatched repeatedly and asynchronously after + * "open" is dispatched, every time some data was available from the server + * and was read. The event object will be a TCPSocketEvent; if the "arraybuffer" + * binaryType was passed to the constructor, the data attribute of the event + * object will be an ArrayBuffer. If not, it will be a normal JavaScript string, + * truncated at the first null byte found in the payload and the remainder + * interpreted as ASCII bytes. + * + * At any time, the client may choose to pause reading and receiving "data" + * events by calling the socket's suspend() method. Further "data" events + * will be paused until resume() is called. + */ + attribute EventHandler ondata; + + /** + * The "error" event will be dispatched when there is an error. The event + * object will be a TCPSocketErrorEvent. + * + * If an "error" event is dispatched before an "open" one, the connection + * was refused, and the "close" event will not be dispatched. If an "error" + * event is dispatched after an "open" event, the connection was lost, + * and a "close" event will be dispatched subsequently. + */ + attribute EventHandler onerror; + + /** + * The "close" event is dispatched once the underlying network socket + * has been closed, either by the server, or by the client calling + * close. + * + * If the "error" event was not dispatched before "close", then one of + * the sides cleanly closed the connection. + */ + attribute EventHandler onclose; +}; |