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- "use strict";
- Object.defineProperty(exports, "__esModule", {
- value: true
- });
- exports.monotonicTime = monotonicTime;
- /**
- * Copyright (c) Microsoft Corporation.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- // The `process.hrtime()` returns a time from some arbitrary
- // date in the past; on certain systems, this is the time from the system boot.
- // The `monotonicTime()` converts this to milliseconds.
- //
- // For a Linux server with uptime of 36 days, the `monotonicTime()` value
- // will be 36 * 86400 * 1000 = 3_110_400_000, which is larger than
- // the maximum value that `setTimeout` accepts as an argument: 2_147_483_647.
- //
- // To make the `monotonicTime()` a reasonable value, we anchor
- // it to the time of the first import of this utility.
- const initialTime = process.hrtime();
- function monotonicTime() {
- const [seconds, nanoseconds] = process.hrtime(initialTime);
- return seconds * 1000 + (nanoseconds / 1000 | 0) / 1000;
- }
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