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'use strict';
const {
Symbol,
Date,
DatePrototypeGetMilliseconds,
DatePrototypeToUTCString,
} = primordials;
const { setUnrefTimeout } = require('internal/timers');
const { trace, isTraceCategoryEnabled } = internalBinding('trace_events');
const {
CHAR_LOWERCASE_B,
CHAR_LOWERCASE_E,
} = require('internal/constants');
let utcCache;
function utcDate() {
if (!utcCache) cache();
return utcCache;
}
function cache() {
const d = new Date();
utcCache = DatePrototypeToUTCString(d);
setUnrefTimeout(resetCache, 1000 - DatePrototypeGetMilliseconds(d));
}
function resetCache() {
utcCache = undefined;
}
let traceEventId = 0;
function getNextTraceEventId() {
return ++traceEventId;
}
function isTraceHTTPEnabled() {
return isTraceCategoryEnabled('node.http');
}
const traceEventCategory = 'node,node.http';
function traceBegin(...args) {
trace(CHAR_LOWERCASE_B, traceEventCategory, ...args);
}
function traceEnd(...args) {
trace(CHAR_LOWERCASE_E, traceEventCategory, ...args);
}
module.exports = {
kOutHeaders: Symbol('kOutHeaders'),
kNeedDrain: Symbol('kNeedDrain'),
utcDate,
traceBegin,
traceEnd,
getNextTraceEventId,
isTraceHTTPEnabled,
};
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