public void WithMethods()
{
var options = new CallOptions();
var metadata = new Metadata();
Assert.AreSame(metadata, options.WithHeaders(metadata).Headers);
var deadline = DateTime.UtcNow;
Assert.AreEqual(deadline, options.WithDeadline(deadline).Deadline.Value);
var cancellationToken = new CancellationTokenSource().Token;
Assert.AreEqual(cancellationToken, options.WithCancellationToken(cancellationToken).CancellationToken);
var writeOptions = new WriteOptions();
Assert.AreSame(writeOptions, options.WithWriteOptions(writeOptions).WriteOptions);
var propagationToken = new ContextPropagationToken(CallSafeHandle.NullInstance, DateTime.UtcNow,
CancellationToken.None, ContextPropagationOptions.Default);
Assert.AreSame(propagationToken, options.WithPropagationToken(propagationToken).PropagationToken);
var credentials = new FakeCallCredentials();
Assert.AreSame(credentials, options.WithCredentials(credentials).Credentials);
// Check that the original instance is unchanged.
Assert.IsNull(options.Headers);
Assert.IsNull(options.Deadline);
Assert.AreEqual(CancellationToken.None, options.CancellationToken);
Assert.IsNull(options.WriteOptions);
Assert.IsNull(options.PropagationToken);
Assert.IsNull(options.Credentials);
}
/// <summary>
/// Creates a new instance of <c>CallOptions</c> struct.
/// </summary>
/// <param name="headers">Headers to be sent with the call.</param>
/// <param name="deadline">Deadline for the call to finish. null means no deadline.</param>
/// <param name="cancellationToken">Can be used to request cancellation of the call.</param>
/// <param name="writeOptions">Write options that will be used for this call.</param>
/// <param name="propagationToken">Context propagation token obtained from <see cref="ServerCallContext"/>.</param>
public CallOptions(Metadata headers = null, DateTime? deadline = null, CancellationToken cancellationToken = default(CancellationToken),
WriteOptions writeOptions = null, ContextPropagationToken propagationToken = null)
{
this.headers = headers;
this.deadline = deadline;
this.cancellationToken = cancellationToken;
this.writeOptions = writeOptions;
this.propagationToken = propagationToken;
}
/// <summary>
/// Creates a new instance of <c>CallOptions</c>.
/// </summary>
/// <param name="headers">Headers to be sent with the call.</param>
/// <param name="deadline">Deadline for the call to finish. null means no deadline.</param>
/// <param name="cancellationToken">Can be used to request cancellation of the call.</param>
/// <param name="writeOptions">Write options that will be used for this call.</param>
/// <param name="propagationToken">Context propagation token obtained from <see cref="ServerCallContext"/>.</param>
public CallOptions(Metadata headers = null, DateTime? deadline = null, CancellationToken? cancellationToken = null,
WriteOptions writeOptions = null, ContextPropagationToken propagationToken = null)
{
// TODO(jtattermusch): consider only creating metadata object once it's really needed.
this.headers = headers ?? new Metadata();
this.deadline = deadline ?? (propagationToken != null ? propagationToken.Deadline : DateTime.MaxValue);
this.cancellationToken = cancellationToken ?? (propagationToken != null ? propagationToken.CancellationToken : CancellationToken.None);
this.writeOptions = writeOptions;
this.propagationToken = propagationToken;
}
/// <summary>
/// Constructs an instance with the specified settings.
/// </summary>
/// <param name="cancellationToken">Cancellation token that can be used for cancelling the call.</param>
/// <param name="credentials">Credentials to use for the call.</param>
/// <param name="timing"><see cref="CallTiming"/> to use, or null for default retry/expiration behavior.</param>
/// <param name="headerMutation">Action to modify the headers to send at the beginning of the call.</param>
/// <param name="writeOptions"><see cref="global::Grpc.Core.WriteOptions"/> that will be used for the call.</param>
/// <param name="propagationToken"><see cref="ContextPropagationToken"/> for propagating settings from a parent call.</param>
public CallSettings(
CancellationToken? cancellationToken,
CallCredentials credentials,
CallTiming timing,
Action<Metadata> headerMutation,
WriteOptions writeOptions,
ContextPropagationToken propagationToken)
{
CancellationToken = cancellationToken;
Credentials = credentials;
Timing = timing;
HeaderMutation = headerMutation;
WriteOptions = writeOptions;
PropagationToken = propagationToken;
}
/// <summary>
/// Returns new instance of <see cref="CallOptions"/> with
/// <c>WriteOptions</c> set to the value provided. Values of all other fields are preserved.
/// </summary>
/// <param name="writeOptions">The write options.</param>
public CallOptions WithWriteOptions(WriteOptions writeOptions)
{
var newOptions = this;
newOptions.writeOptions = writeOptions;
return newOptions;
}