1 // Copyright 2017 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 syntax = "proto3"; 16 17 package grpc.core; 18 19 message Bucket { 20 double start = 1; 21 uint64 count = 2; 22 } 23 24 message Histogram { 25 repeated Bucket buckets = 1; 26 } 27 28 message Metric { 29 string name = 1; 30 oneof value { 31 uint64 count = 10; 32 Histogram histogram = 11; 33 } 34 } 35 36 message Stats { 37 repeated Metric metrics = 1; 38 } 39