src/realm_builder/greeter.cc

// Copyright 2022 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <fuchsia/sdk/examples/fidl/cpp/fidl.h>
#include <lib/async-loop/cpp/loop.h>
#include <lib/async-loop/default.h>
#include <lib/fidl/cpp/binding.h>
#include <lib/sys/cpp/component_context.h>
#include <stdio.h>

// This GreetingService implementation echoes back the Greeting sent in calls
// to Greet. This is provided to facilitate testing.
class GreetingServiceImpl : public fuchsia::sdk::examples::fidl::GreetingService {
 public:
  void Greet(std::unique_ptr<fuchsia::sdk::examples::fidl::Greeting> value,
             GreetCallback callback) override {
    callback(std::move(value));
  }
};

int main(int argc, const char** argv) {
  async::Loop loop(&kAsyncLoopConfigAttachToCurrentThread);

  GreetingServiceImpl impl;
  fidl::Binding<fuchsia::sdk::examples::fidl::GreetingService> binding(&impl);
  fidl::InterfaceRequestHandler<fuchsia::sdk::examples::fidl::GreetingService> handler =
      [&](fidl::InterfaceRequest<fuchsia::sdk::examples::fidl::GreetingService> request) {
        binding.Bind(std::move(request));
      };
  auto context = sys::ComponentContext::CreateAndServeOutgoingDirectory();
  context->outgoing()->AddPublicService(std::move(handler));

  printf("Running GreetingService server\n");
  return loop.Run();
}