signal-desktop/libtextsecure/task_with_timeout.js
2018-04-30 16:53:34 -04:00

68 lines
2.3 KiB
JavaScript

(function () {
window.textsecure = window.textsecure || {};
window.textsecure.createTaskWithTimeout = function(task, id, options) {
options = options || {};
options.timeout = options.timeout || (1000 * 60 * 2); // two minutes
var errorForStack = new Error('for stack');
return function() {
return new Promise(function(resolve, reject) {
var complete = false;
var timer = setTimeout(function() {
if (!complete) {
var message =
(id || '')
+ ' task did not complete in time. Calling stack: '
+ errorForStack.stack;
console.log(message);
return reject(new Error(message));
}
}.bind(this), options.timeout);
var clearTimer = function() {
try {
var localTimer = timer;
if (localTimer) {
timer = null;
clearTimeout(localTimer);
}
}
catch (error) {
console.log(
id || '',
'task ran into problem canceling timer. Calling stack:',
errorForStack.stack
);
}
};
var success = function(result) {
clearTimer();
complete = true;
return resolve(result);
};
var failure = function(error) {
clearTimer();
complete = true;
return reject(error);
};
var promise;
try {
promise = task();
} catch(error) {
clearTimer();
throw error;
}
if (!promise || !promise.then) {
clearTimer();
complete = true;
return resolve(promise);
}
return promise.then(success, failure);
});
};
};
})();