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Diffstat (limited to 'node_modules/on-finished/index.js')
-rw-r--r-- | node_modules/on-finished/index.js | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/node_modules/on-finished/index.js b/node_modules/on-finished/index.js deleted file mode 100644 index 9abd98f..0000000 --- a/node_modules/on-finished/index.js +++ /dev/null @@ -1,196 +0,0 @@ -/*! - * on-finished - * Copyright(c) 2013 Jonathan Ong - * Copyright(c) 2014 Douglas Christopher Wilson - * MIT Licensed - */ - -'use strict' - -/** - * Module exports. - * @public - */ - -module.exports = onFinished -module.exports.isFinished = isFinished - -/** - * Module dependencies. - * @private - */ - -var first = require('ee-first') - -/** - * Variables. - * @private - */ - -/* istanbul ignore next */ -var defer = typeof setImmediate === 'function' - ? setImmediate - : function(fn){ process.nextTick(fn.bind.apply(fn, arguments)) } - -/** - * Invoke callback when the response has finished, useful for - * cleaning up resources afterwards. - * - * @param {object} msg - * @param {function} listener - * @return {object} - * @public - */ - -function onFinished(msg, listener) { - if (isFinished(msg) !== false) { - defer(listener, null, msg) - return msg - } - - // attach the listener to the message - attachListener(msg, listener) - - return msg -} - -/** - * Determine if message is already finished. - * - * @param {object} msg - * @return {boolean} - * @public - */ - -function isFinished(msg) { - var socket = msg.socket - - if (typeof msg.finished === 'boolean') { - // OutgoingMessage - return Boolean(msg.finished || (socket && !socket.writable)) - } - - if (typeof msg.complete === 'boolean') { - // IncomingMessage - return Boolean(msg.upgrade || !socket || !socket.readable || (msg.complete && !msg.readable)) - } - - // don't know - return undefined -} - -/** - * Attach a finished listener to the message. - * - * @param {object} msg - * @param {function} callback - * @private - */ - -function attachFinishedListener(msg, callback) { - var eeMsg - var eeSocket - var finished = false - - function onFinish(error) { - eeMsg.cancel() - eeSocket.cancel() - - finished = true - callback(error) - } - - // finished on first message event - eeMsg = eeSocket = first([[msg, 'end', 'finish']], onFinish) - - function onSocket(socket) { - // remove listener - msg.removeListener('socket', onSocket) - - if (finished) return - if (eeMsg !== eeSocket) return - - // finished on first socket event - eeSocket = first([[socket, 'error', 'close']], onFinish) - } - - if (msg.socket) { - // socket already assigned - onSocket(msg.socket) - return - } - - // wait for socket to be assigned - msg.on('socket', onSocket) - - if (msg.socket === undefined) { - // node.js 0.8 patch - patchAssignSocket(msg, onSocket) - } -} - -/** - * Attach the listener to the message. - * - * @param {object} msg - * @return {function} - * @private - */ - -function attachListener(msg, listener) { - var attached = msg.__onFinished - - // create a private single listener with queue - if (!attached || !attached.queue) { - attached = msg.__onFinished = createListener(msg) - attachFinishedListener(msg, attached) - } - - attached.queue.push(listener) -} - -/** - * Create listener on message. - * - * @param {object} msg - * @return {function} - * @private - */ - -function createListener(msg) { - function listener(err) { - if (msg.__onFinished === listener) msg.__onFinished = null - if (!listener.queue) return - - var queue = listener.queue - listener.queue = null - - for (var i = 0; i < queue.length; i++) { - queue[i](err, msg) - } - } - - listener.queue = [] - - return listener -} - -/** - * Patch ServerResponse.prototype.assignSocket for node.js 0.8. - * - * @param {ServerResponse} res - * @param {function} callback - * @private - */ - -function patchAssignSocket(res, callback) { - var assignSocket = res.assignSocket - - if (typeof assignSocket !== 'function') return - - // res.on('socket', callback) is broken in 0.8 - res.assignSocket = function _assignSocket(socket) { - assignSocket.call(this, socket) - callback(socket) - } -} |