/// <summary>
/// Creates a channel that connects to a specific host.
/// Port will default to 80 for an unsecure channel and to 443 for a secure channel.
/// </summary>
/// <param name="target">Target of the channel.</param>
/// <param name="credentials">Credentials to secure the channel.</param>
/// <param name="options">Channel options.</param>
public Channel(string target, ChannelCredentials credentials, IEnumerable <ChannelOption> options)
{
this.target = GrpcPreconditions.CheckNotNull(target, "target");
this.options = CreateOptionsDictionary(options);
EnsureUserAgentChannelOption(this.options);
this.environment = GrpcEnvironment.AddRef();
this.completionQueue = this.environment.PickCompletionQueue();
using (var nativeCredentials = credentials.ToNativeCredentials())
using (var nativeChannelArgs = ChannelOptions.CreateChannelArgs(this.options.Values))
{
if (nativeCredentials != null)
{
this.handle = ChannelSafeHandle.CreateSecure(nativeCredentials, target, nativeChannelArgs);
}
else
{
this.handle = ChannelSafeHandle.CreateInsecure(target, nativeChannelArgs);
}
}
// TODO(jtattermusch): Workaround for https://github.com/GoogleCloudPlatform/google-cloud-dotnet/issues/822.
// Remove once retries are supported in C core
this.connectivityWatcherTask = RunConnectivityWatcherAsync();
GrpcEnvironment.RegisterChannel(this);
}