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#region Copyright notice and license
// Copyright 2015, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#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.ASYNC_SERVER)
{
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.ASYNC_GENERIC_SERVER)
{
var genericService = new GenericServiceImpl(config.PayloadConfig.BytebufParams.RespSize);
service = GenericService.BindHandler(genericService.StreamingCall);
}
else
{
throw new ArgumentException("Unsupported ServerType");
}
var server = new Server
{
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 WallClockStopwatch wallClockStopwatch = new WallClockStopwatch();
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 secondsElapsed = wallClockStopwatch.GetElapsedSnapshot(reset).TotalSeconds;
// TODO: populate user time and system time
return new ServerStats
{
TimeElapsed = secondsElapsed,
TimeUser = 0,
TimeSystem = 0
};
}
/// <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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