private static async Task BidirectionalStreamingExample(Racer.RacerClient client)
{
var headers = new Metadata {
new Metadata.Entry("race-duration", RaceDuration.ToString())
};
Console.WriteLine("Ready, set ,go!");
using (var call = client.ReadySetGo(new CallOptions(headers)))
{
RaceMessage?lastMessageReceived = null;
var readTask = Task.Run(async() =>
{
await foreach (var message in call.ResponseStream.ReadAllAsync())
{
lastMessageReceived = message;
}
});
var sw = Stopwatch.StartNew();
var sent = 0;
while (sw.Elapsed < RaceDuration)
{
await call.RequestStream.WriteAsync(new RaceMessage { Count = ++sent });
}
await call.RequestStream.CompleteAsync();
await readTask;
Console.WriteLine($"Messages sent: {sent}");
Console.WriteLine($"Messages received: {lastMessageReceived?.Count ?? 0}");
}
}
private static async Task BidirectionalStreamingExample(Racer.RacerClient client)
{
var headers = new Metadata {
new Metadata.Entry("race-duration", RaceDuration.ToString())
};
Console.WriteLine("Ready, set, go!");
using var call = client.ReadySetGo(new CallOptions(headers));
var complete = false;
// Read incoming messages in a background task
RaceMessage?lastMessageReceived = null;
var readTask = Task.Run(async() =>
{
await foreach (var message in call.ResponseStream.ReadAllAsync())
{
lastMessageReceived = message;
}
});
// Write outgoing messages until timer is complete
var sw = Stopwatch.StartNew();
var sent = 0;
#region Reporting
// Report requests in realtime
var reportTask = Task.Run(async() =>
{
while (true)
{
Console.WriteLine($"Messages sent: {sent}");
Console.WriteLine($"Messages received: {lastMessageReceived?.Count ?? 0}");
if (!complete)
{
await Task.Delay(TimeSpan.FromSeconds(1));
Console.SetCursorPosition(0, Console.CursorTop - 2);
}
else
{
break;
}
}
});
#endregion
while (sw.Elapsed < RaceDuration)
{
await call.RequestStream.WriteAsync(new RaceMessage { Count = ++sent });
}
// Finish call and report results
await call.RequestStream.CompleteAsync();
await readTask;
complete = true;
await reportTask;
}
static async Task Main(string[] args)
{
var channel = GrpcChannel.ForAddress("https://localhost:5001");
var client = new Racer.RacerClient(channel);
Console.WriteLine("Press any key to start race...");
Console.ReadKey();
await BidirectionalStreamingExample(client);
Console.WriteLine("Finished");
Console.WriteLine("Press any key to exit...");
Console.ReadKey();
}
public async Task DuplexStream_SimultaneousSendAndReceive_Success()
{
var client = new Racer.RacerClient(Channel);
TimeSpan raceDuration = TimeSpan.FromSeconds(1);
var headers = new Metadata {
new Metadata.Entry("race-duration", raceDuration.ToString())
};
using (var call = client.ReadySetGo(new CallOptions(headers)))
{
// Read incoming messages in a background task
RaceMessage?lastMessageReceived = null;
var readTask = Task.Run(async() =>
{
while (await call.ResponseStream.MoveNext().DefaultTimeout())
{
lastMessageReceived = call.ResponseStream.Current;
}
});
// Write outgoing messages until timer is complete
var sw = Stopwatch.StartNew();
var sent = 0;
while (sw.Elapsed < raceDuration)
{
await call.RequestStream.WriteAsync(new RaceMessage { Count = ++sent }).DefaultTimeout();
}
// Finish call and report results
await call.RequestStream.CompleteAsync().DefaultTimeout();
await readTask.DefaultTimeout();
Assert.Greater(sent, 0);
Assert.Greater(lastMessageReceived?.Count ?? 0, 0);
}
}
