ef965ebdfd
* satisfied array-callback-return rule * satisfying no-invalid-this rule * fixed invalid-this issues * changed isNotEqual to arrow function * added rule func-style * added return false to satisfy array-callback-return rule Co-authored-by: Joel McKinnon <jmckinnon@apple.com> Co-authored-by: Joshi <simplyrender@gmail.com> Co-authored-by: Andrew Henry <akhenry@gmail.com>
78 lines
2.4 KiB
JavaScript
78 lines
2.4 KiB
JavaScript
/*****************************************************************************
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* Open MCT, Copyright (c) 2014-2020, United States Government
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* as represented by the Administrator of the National Aeronautics and Space
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* Administration. All rights reserved.
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*
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* Open MCT is licensed under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* Open MCT includes source code licensed under additional open source
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* licenses. See the Open Source Licenses file (LICENSES.md) included with
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* this source code distribution or the Licensing information page available
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* at runtime from the About dialog for additional information.
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*****************************************************************************/
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function updateLatestTimeStamp(timestamp, timeSystems) {
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let latest = {};
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timeSystems.forEach(timeSystem => {
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latest[timeSystem.key] = timestamp[timeSystem.key];
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});
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return latest;
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}
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export function getLatestTimestamp(
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currentTimestamp,
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compareTimestamp,
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timeSystems,
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currentTimeSystem
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) {
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let latest = { ...currentTimestamp };
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const compare = { ...compareTimestamp };
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const key = currentTimeSystem.key;
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if (!latest || !latest[key]) {
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latest = updateLatestTimeStamp(compare, timeSystems);
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}
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if (compare[key] > latest[key]) {
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latest = updateLatestTimeStamp(compare, timeSystems);
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}
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return latest;
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}
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export function subscribeForStaleness(callback, timeout) {
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let stalenessTimer = setTimeout(() => {
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clearTimeout(stalenessTimer);
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callback();
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}, timeout);
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return {
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update: (data) => {
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if (stalenessTimer) {
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clearTimeout(stalenessTimer);
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}
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stalenessTimer = setTimeout(() => {
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clearTimeout(stalenessTimer);
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callback(data);
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}, timeout);
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},
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clear: () => {
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if (stalenessTimer) {
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clearTimeout(stalenessTimer);
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}
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}
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};
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}
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