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"use strict";
/**
* Copyright 2018 Google LLC
*
* 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 });
// Code snippets from Stackdriver Trace Agent
// https://github.com/GoogleCloudPlatform/cloud-trace-nodejs
const crypto = require("crypto");
const SPAN_ID_RANDOM_BYTES = 8;
// Use the faster crypto.randomFillSync when available (Node 7+) falling back to
// using crypto.randomBytes.
const spanIdBuffer = Buffer.alloc(SPAN_ID_RANDOM_BYTES);
const randomFillSync = crypto.randomFillSync;
const randomBytes = crypto.randomBytes;
const spanRandomBuffer = randomFillSync ?
() => randomFillSync(spanIdBuffer) :
() => randomBytes(SPAN_ID_RANDOM_BYTES);
function randomSpanId() {
return spanRandomBuffer().toString('hex');
}
exports.randomSpanId = randomSpanId;
//# sourceMappingURL=util.js.map