@bugsnag/core-performance
Version:
Core performance client
30 lines (28 loc) • 1.28 kB
JavaScript
/*
* Copyright The OpenTelemetry 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
*
* https://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.
*/
// taken from OpenTelemetry's TraceIdRatioBasedSampler:
// https://github.com/open-telemetry/opentelemetry-js/blob/ca700c4eef64c14bb5fef2be6f08ace7973a8881/packages/opentelemetry-sdk-trace-base/src/sampler/TraceIdRatioBasedSampler.ts#L47-L55
// with some small modifications to match our naming conventions
function traceIdToSamplingRate(traceId) {
let samplingRate = 0;
for (let i = 0; i < traceId.length / 8; i++) {
const position = i * 8;
const segment = Number.parseInt(traceId.slice(position, position + 8), 16);
samplingRate = (samplingRate ^ segment) >>> 0;
}
return samplingRate;
}
export { traceIdToSamplingRate as default };