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#region Copyright notice and license
// Copyright 2015 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.
#endregion
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;
using System.Threading;
using System.Threading.Tasks;
using Google.Protobuf;
using Grpc.Core;
using Grpc.Core.Logging;
using Grpc.Core.Utils;
using NUnit.Framework;
using Grpc.Testing;
namespace Grpc.IntegrationTesting
{
/// <summary>
/// Helper methods to start server runners for performance testing.
/// </summary>
public class ServerRunners
{
static readonly ILogger Logger = GrpcEnvironment.Logger.ForType<ServerRunners>();
/// <summary>
/// Creates a started server runner.
/// </summary>
public static IServerRunner CreateStarted(ServerConfig config)
{
Logger.Debug("ServerConfig: {0}", config);
var credentials = config.SecurityParams != null ? TestCredentials.CreateSslServerCredentials() : ServerCredentials.Insecure;
if (config.AsyncServerThreads != 0)
{
Logger.Warning("ServerConfig.AsyncServerThreads is not supported for C#. Ignoring the value");
}
if (config.CoreLimit != 0)
{
Logger.Warning("ServerConfig.CoreLimit is not supported for C#. Ignoring the value");
}
if (config.CoreList.Count > 0)
{
Logger.Warning("ServerConfig.CoreList is not supported for C#. Ignoring the value");
}
ServerServiceDefinition service = null;
if (config.ServerType == ServerType.AsyncServer)
{
GrpcPreconditions.CheckArgument(config.PayloadConfig == null,
"ServerConfig.PayloadConfig shouldn't be set for BenchmarkService based server.");
service = BenchmarkService.BindService(new BenchmarkServiceImpl());
}
else if (config.ServerType == ServerType.AsyncGenericServer)
{
var genericService = new GenericServiceImpl(config.PayloadConfig.BytebufParams.RespSize);
service = GenericService.BindHandler(genericService.StreamingCall);
}
else
{
throw new ArgumentException("Unsupported ServerType");
}
var channelOptions = new List<ChannelOption>(config.ChannelArgs.Select((arg) => arg.ToChannelOption()));
var server = new Server(channelOptions)
{
Services = { service },
Ports = { new ServerPort("[::]", config.Port, credentials) }
};
server.Start();
return new ServerRunnerImpl(server);
}
private class GenericServiceImpl
{
readonly byte[] response;
public GenericServiceImpl(int responseSize)
{
this.response = new byte[responseSize];
}
/// <summary>
/// Generic streaming call handler.
/// </summary>
public async Task StreamingCall(IAsyncStreamReader<byte[]> requestStream, IServerStreamWriter<byte[]> responseStream, ServerCallContext context)
{
await requestStream.ForEachAsync(async request =>
{
await responseStream.WriteAsync(response);
});
}
}
}
/// <summary>
/// Server runner.
/// </summary>
public class ServerRunnerImpl : IServerRunner
{
readonly Server server;
readonly TimeStats timeStats = new TimeStats();
public ServerRunnerImpl(Server server)
{
this.server = GrpcPreconditions.CheckNotNull(server);
}
public int BoundPort
{
get
{
return server.Ports.Single().BoundPort;
}
}
/// <summary>
/// Gets server stats.
/// </summary>
/// <returns>The stats.</returns>
public ServerStats GetStats(bool reset)
{
var timeSnapshot = timeStats.GetSnapshot(reset);
GrpcEnvironment.Logger.Info("[ServerRunner.GetStats] GC collection counts: gen0 {0}, gen1 {1}, gen2 {2}, (seconds since last reset {3})",
GC.CollectionCount(0), GC.CollectionCount(1), GC.CollectionCount(2), timeSnapshot.WallClockTime.TotalSeconds);
return new ServerStats
{
TimeElapsed = timeSnapshot.WallClockTime.TotalSeconds,
TimeUser = timeSnapshot.UserProcessorTime.TotalSeconds,
TimeSystem = timeSnapshot.PrivilegedProcessorTime.TotalSeconds
};
}
/// <summary>
/// Asynchronously stops the server.
/// </summary>
/// <returns>Task that finishes when server has shutdown.</returns>
public Task StopAsync()
{
return server.ShutdownAsync();
}
}
}
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