1/*
2 * Copyright 2018-present Facebook, Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <folly/stats/QuantileEstimator-defs.h>
18
19namespace folly {
20namespace detail {
21
22QuantileEstimates estimatesFromDigest(
23 const TDigest& digest,
24 Range<const double*> quantiles) {
25 QuantileEstimates result;
26 result.quantiles.reserve(quantiles.size());
27 result.sum = digest.sum();
28 result.count = digest.count();
29 for (auto it = quantiles.begin(); it != quantiles.end(); ++it) {
30 result.quantiles.push_back(
31 std::make_pair(*it, digest.estimateQuantile(*it)));
32 }
33 return result;
34}
35
36} // namespace detail
37
38template class SimpleQuantileEstimator<std::chrono::steady_clock>;
39template class SlidingWindowQuantileEstimator<std::chrono::steady_clock>;
40
41} // namespace folly
42