/// <summary>
/// Equivalent to <see cref="CallInvoker.AsyncUnaryCall{TRequest, TResponse}(Method{TRequest, TResponse}, string, CallOptions, TRequest)"/>.
/// </summary>
internal AsyncUnaryCall <TResponse> AsyncUnaryCall <TRequest, TResponse>(Method <TRequest, TResponse> method, string host, CallOptions options, TRequest request)
{
var restMethod = _serviceCollection.GetRestMethod(method);
var cancellationTokenSource = new CancellationTokenSource();
if (options.Deadline.HasValue)
{
// TODO: [virost, 2021-12] Use IClock.
var delayInterval = options.Deadline.Value - DateTime.UtcNow;
if (delayInterval.TotalMilliseconds <= 0)
{
throw new RpcException(new Status(StatusCode.DeadlineExceeded, $"The timeout was reached when calling a method `{restMethod.FullName}`"));
}
cancellationTokenSource = new CancellationTokenSource(delayInterval);
}
var httpResponseTask = SendAsync(restMethod, host, options, request, cancellationTokenSource.Token);
var responseTask = restMethod.ReadResponseAsync <TResponse>(httpResponseTask);
var responseHeadersTask = ReadHeadersAsync(httpResponseTask);
Func <Status> statusFunc = () => GetStatus(httpResponseTask);
Func <Metadata> trailersFunc = () => GetTrailers(httpResponseTask);
return(new AsyncUnaryCall <TResponse>(responseTask, responseHeadersTask, statusFunc, trailersFunc, cancellationTokenSource.Cancel));
}
/// <summary>
/// Equivalent to <see cref="CallInvoker.AsyncUnaryCall{TRequest, TResponse}(Method{TRequest, TResponse}, string, CallOptions, TRequest)"/>.
/// </summary>
internal AsyncUnaryCall <TResponse> AsyncUnaryCall <TRequest, TResponse>(Method <TRequest, TResponse> method, string host, CallOptions options, TRequest request)
{
var restMethod = _serviceCollection.GetRestMethod(method);
var cancellationTokenSource = new CancellationTokenSource();
var httpResponseTask = SendAsync(restMethod, host, options, request, cancellationTokenSource.Token);
// TODO: Cancellation?
var responseTask = restMethod.ReadResponseAsync <TResponse>(httpResponseTask);
var responseHeadersTask = ReadHeadersAsync(httpResponseTask);
Func <Status> statusFunc = () => GetStatus(httpResponseTask);
Func <Metadata> trailersFunc = () => GetTrailers(httpResponseTask);
return(new AsyncUnaryCall <TResponse>(responseTask, responseHeadersTask, statusFunc, trailersFunc, cancellationTokenSource.Cancel));
}