protected IpcEndpoint( IpcEndpointOptions options, IServiceProvider serviceProvider, ILogger logger) { _options = options ?? throw new ArgumentNullException(nameof(options)); _serviceProvider = serviceProvider ?? throw new ArgumentNullException(nameof(serviceProvider)); _logger = logger ?? throw new ArgumentNullException(nameof(logger)); _semaphore = new SemaphoreSlim(options.MaxConcurrentCalls); }