grpc/src/proto/grpc/testing/xds/v3/percent.proto

// Copyright 2020 The gRPC 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
//
//     http://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.

// Local copy of Envoy xDS proto file, used for testing only.

syntax = "proto3";

package envoy.type.v3;

// A fractional percentage is used in cases in which for performance reasons performing floating
// point to integer conversions during randomness calculations is undesirable. The message includes
// both a numerator and denominator that together determine the final fractional value.
//
// * **Example**: 1/100 = 1%.
// * **Example**: 3/10000 = 0.03%.
message FractionalPercent {
  // Fraction percentages support several fixed denominator values.
  enum DenominatorType {
    // 100.
    //
    // **Example**: 1/100 = 1%.
    HUNDRED = 0;

    // 10,000.
    //
    // **Example**: 1/10000 = 0.01%.
    TEN_THOUSAND = 1;

    // 1,000,000.
    //
    // **Example**: 1/1000000 = 0.0001%.
    MILLION = 2;
  }

  // Specifies the numerator. Defaults to 0.
  uint32 numerator = 1;

  // Specifies the denominator. If the denominator specified is less than the numerator, the final
  // fractional percentage is capped at 1 (100%).
  DenominatorType denominator = 2;
}