Current File : //lib/node_modules/pm2/node_modules/@opencensus/core/build/src/internal/clock.js
"use strict";
/**
* Copyright 2018, OpenCensus Authors
*
* 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.
*/
Object.defineProperty(exports, "__esModule", { value: true });
/**
* The Clock class is used to record the duration and endTime for spans.
*/
class Clock {
/** Constructs a new SamplerImpl instance. */
constructor() {
/** Indicates if the clock is endend. */
this.endedLocal = false;
/** The duration between start and end of the clock. */
this.diff = null;
this.startTimeLocal = new Date();
this.hrtimeLocal = process.hrtime();
}
/** Ends the clock. */
end() {
if (this.endedLocal) {
return;
}
this.diff = process.hrtime(this.hrtimeLocal);
this.endedLocal = true;
}
/** Gets the duration of the clock. */
get duration() {
if (!this.endedLocal) {
return null;
}
const ns = this.diff[0] * 1e9 + this.diff[1];
return ns / 1e6;
}
/** Starts the clock. */
get startTime() {
return this.startTimeLocal;
}
/**
* Gets the time so far.
* @returns A Date object with the current duration.
*/
get endTime() {
let result = null;
if (this.ended) {
result = new Date(this.startTime.getTime() + this.duration);
}
return result;
}
/** Indicates if the clock was ended. */
get ended() {
return this.endedLocal;
}
}
exports.Clock = Clock;
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