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'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = timeout;
var _initialParams = require('./internal/initialParams');
var _initialParams2 = _interopRequireDefault(_initialParams);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
/**
* Sets a time limit on an asynchronous function. If the function does not call
* its callback within the specified milliseconds, it will be called with a
* timeout error. The code property for the error object will be `'ETIMEDOUT'`.
*
* @name timeout
* @static
* @memberOf module:Utils
* @method
* @category Util
* @param {Function} asyncFn - The asynchronous function you want to set the
* time limit.
* @param {number} milliseconds - The specified time limit.
* @param {*} [info] - Any variable you want attached (`string`, `object`, etc)
* to timeout Error for more information..
* @returns {Function} Returns a wrapped function that can be used with any of
* the control flow functions.
* @example
*
* async.timeout(function(callback) {
* doAsyncTask(callback);
* }, 1000);
*/
function timeout(asyncFn, milliseconds, info) {
var originalCallback, timer;
var timedOut = false;
function injectedCallback() {
if (!timedOut) {
originalCallback.apply(null, arguments);
clearTimeout(timer);
}
}
function timeoutCallback() {
var name = asyncFn.name || 'anonymous';
var error = new Error('Callback function "' + name + '" timed out.');
error.code = 'ETIMEDOUT';
if (info) {
error.info = info;
}
timedOut = true;
originalCallback(error);
}
return (0, _initialParams2.default)(function (args, origCallback) {
originalCallback = origCallback;
// setup timer and call original function
timer = setTimeout(timeoutCallback, milliseconds);
asyncFn.apply(null, args.concat(injectedCallback));
});
}
module.exports = exports['default'];
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