1 // Copyright 2021 gRPC authors. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef GRPC_SRC_CORE_TELEMETRY_HISTOGRAM_VIEW_H 16 #define GRPC_SRC_CORE_TELEMETRY_HISTOGRAM_VIEW_H 17 18 #include <grpc/support/port_platform.h> 19 #include <stdint.h> 20 21 namespace grpc_core { 22 23 struct HistogramView { 24 int (*bucket_for)(int value); 25 const int* bucket_boundaries; 26 int num_buckets; 27 const uint64_t* buckets; 28 29 double Percentile(double p) const; 30 double Count() const; 31 double ThresholdForCountBelow(double count_below) const; 32 }; 33 34 } // namespace grpc_core 35 36 #endif // GRPC_SRC_CORE_TELEMETRY_HISTOGRAM_VIEW_H 37