folly/stats/Histogram.cpp

   1 /*
   2  * Copyright 2017 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 /*
  18  * This file contains explicit instantiations of stats template types.
  19  *
  20  * This allows most users to avoid having to include the template definition
  21  * header files.
  22  */
  23
  24 #include <folly/stats/Histogram.h>
  25 #include <folly/stats/Histogram-defs.h>
  26
  27 #if !FOLLY_MSVC_USE_WORKAROUND_FOR_C5037
  28 namespace folly {
  29
  30 template class Histogram<int64_t>;
  31 template class detail::HistogramBuckets<int64_t, Histogram<int64_t>::Bucket>;
  32
  33 // Histogram::getPercentileBucketIdx(), Histogram::getPercentileEstimate()
  34 // and Histogram::computeTotalCount()
  35 // are implemented using template methods.  Instantiate the default versions of
  36 // these methods too, so anyone using them won't also need to explicitly
  37 // include Histogram-defs.h
  38 template size_t detail::HistogramBuckets<int64_t, Histogram<int64_t>::Bucket>::
  39     getPercentileBucketIdx<Histogram<int64_t>::CountFromBucket>(
  40         double pct,
  41         Histogram<int64_t>::CountFromBucket countFromBucket,
  42         double* lowPct,
  43         double* highPct) const;
  44 template int64_t detail::HistogramBuckets<int64_t, Histogram<int64_t>::Bucket>::
  45     getPercentileEstimate<
  46         Histogram<int64_t>::CountFromBucket,
  47         Histogram<int64_t>::AvgFromBucket>(
  48         double pct,
  49         Histogram<int64_t>::CountFromBucket countFromBucket,
  50         Histogram<int64_t>::AvgFromBucket avgFromBucket) const;
  51 template uint64_t
  52 detail::HistogramBuckets<int64_t, Histogram<int64_t>::Bucket>::
  53     computeTotalCount<Histogram<int64_t>::CountFromBucket>(
  54         Histogram<int64_t>::CountFromBucket countFromBucket) const;
  55
  56 } // namespace folly
  57 #endif