@opentelemetry/core/dist/common/time.mjs

OpenTelemetry Core provides constants and utilities shared by all OpenTelemetry SDK packages.

//#region src/common/time.ts
const NANOSECOND_DIGITS = 9;
const MILLISECONDS_TO_NANOSECONDS = Math.pow(10, 6);
const SECOND_TO_NANOSECONDS = Math.pow(10, NANOSECOND_DIGITS);
/**
* Converts a number of milliseconds from epoch to HrTime([seconds, remainder in nanoseconds]).
* @param epochMillis
*/
function millisToHrTime(epochMillis) {
	const epochSeconds = epochMillis / 1e3;
	return [Math.trunc(epochSeconds), Math.round(epochMillis % 1e3 * MILLISECONDS_TO_NANOSECONDS)];
}
/**
* Returns an hrtime calculated via performance component.
* @param performanceNow
*/
function hrTime(performanceNow) {
	return addHrTimes(millisToHrTime(performance.timeOrigin), millisToHrTime(typeof performanceNow === "number" ? performanceNow : performance.now()));
}
/**
*
* Converts a TimeInput to an HrTime, defaults to _hrtime().
* @param time
*/
function timeInputToHrTime(time) {
	if (isTimeInputHrTime(time)) return time;
	else if (typeof time === "number") {
		if (time < performance.timeOrigin / 2) return hrTime(time);
		else return millisToHrTime(time);
	} else if (time instanceof Date) return millisToHrTime(time.getTime());
	else throw TypeError("Invalid input type");
}
/**
* Returns a duration of two hrTime.
* @param startTime
* @param endTime
*/
function hrTimeDuration(startTime, endTime) {
	let seconds = endTime[0] - startTime[0];
	let nanos = endTime[1] - startTime[1];
	if (nanos < 0) {
		seconds -= 1;
		nanos += SECOND_TO_NANOSECONDS;
	}
	return [seconds, nanos];
}
/**
* Convert hrTime to timestamp, for example "2019-05-14T17:00:00.000123456Z"
* @param time
*/
function hrTimeToTimeStamp(time) {
	const precision = NANOSECOND_DIGITS;
	const tmp = `${"0".repeat(precision)}${time[1]}Z`;
	const nanoString = tmp.substring(tmp.length - precision - 1);
	return (/* @__PURE__ */ new Date(time[0] * 1e3)).toISOString().replace("000Z", nanoString);
}
/**
* Convert hrTime to nanoseconds.
* @param time
*/
function hrTimeToNanoseconds(time) {
	return time[0] * SECOND_TO_NANOSECONDS + time[1];
}
/**
* Convert hrTime to microseconds.
* @param time
*/
function hrTimeToMicroseconds(time) {
	return time[0] * 1e6 + time[1] / 1e3;
}
/**
* Convert hrTime to milliseconds.
* @param time
*/
function hrTimeToMilliseconds(time) {
	return time[0] * 1e3 + time[1] / 1e6;
}
/**
* Convert hrTime to seconds.
* @param time
*/
function hrTimeToSeconds(time) {
	return time[0] + time[1] / SECOND_TO_NANOSECONDS;
}
/**
* check if time is HrTime
* @param value
*/
function isTimeInputHrTime(value) {
	return Array.isArray(value) && value.length === 2 && typeof value[0] === "number" && typeof value[1] === "number";
}
/**
* check if input value is a correct types.TimeInput
* @param value
*/
function isTimeInput(value) {
	return isTimeInputHrTime(value) || typeof value === "number" || value instanceof Date;
}
/**
* Given 2 HrTime formatted times, return their sum as an HrTime.
*/
function addHrTimes(time1, time2) {
	const out = [time1[0] + time2[0], time1[1] + time2[1]];
	if (out[1] >= SECOND_TO_NANOSECONDS) {
		out[1] -= SECOND_TO_NANOSECONDS;
		out[0] += 1;
	}
	return out;
}
//#endregion
export { addHrTimes, hrTime, hrTimeDuration, hrTimeToMicroseconds, hrTimeToMilliseconds, hrTimeToNanoseconds, hrTimeToSeconds, hrTimeToTimeStamp, isTimeInput, isTimeInputHrTime, millisToHrTime, timeInputToHrTime };

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