47 lines
1.3 KiB
JavaScript
47 lines
1.3 KiB
JavaScript
/*
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* Copyright 2020 The NATS Authors
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* Licensed under the Apache License, Version 2.0 (the "License");
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* 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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*
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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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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exports.check = function check(
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fn,
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timeout = 5000,
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opts = { interval: 50, name: "" },
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) {
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opts = Object.assign(opts, { interval: 50 });
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let toHandle;
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const to = new Promise((_, reject) => {
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toHandle = setTimeout(() => {
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const m = opts?.name ? `${opts.name} timeout` : "timeout";
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reject(new Error(m));
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}, timeout);
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});
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const task = new Promise((done) => {
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const i = setInterval(async () => {
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try {
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const v = await fn();
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if (v) {
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clearTimeout(toHandle);
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clearInterval(i);
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done(v);
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}
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} catch (_) {
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console.log(_);
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// ignore
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}
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}, opts?.interval);
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});
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return Promise.race([to, task]);
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};
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