src/devices/tests/v2/reload-driver-nested-composite/drivers/top_b.cc

// Copyright 2025 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 <lib/driver/component/cpp/composite_node_spec.h>
#include <lib/driver/component/cpp/driver_export.h>
#include <lib/driver/component/cpp/node_add_args.h>

#include <bind/fuchsia/reloaddriverbind/test/cpp/bind.h>

#include "src/devices/tests/v2/reload-driver/driver_helpers.h"

namespace bindlib = bind_fuchsia_reloaddriverbind_test;
namespace helpers = reload_test_driver_helpers;

namespace {

class TopBDriver : public fdf::DriverBase {
 public:
  TopBDriver(fdf::DriverStartArgs start_args, fdf::UnownedSynchronizedDispatcher driver_dispatcher)
      : fdf::DriverBase("top-b", std::move(start_args), std::move(driver_dispatcher)) {}

  zx::result<> Start() override {
    node_client_.Bind(std::move(node()));

    zx::result result =
        helpers::AddChild(logger(), "E", node_client_, bindlib::TEST_BIND_PROPERTY_NODE_E);
    if (result.is_error()) {
      return result.take_error();
    }
    node_controller_1_.Bind(std::move(result.value()));

    return helpers::SendAck(logger(), node_name().value_or("None"), incoming(), name());
  }

 private:
  fidl::SyncClient<fuchsia_driver_framework::Node> node_client_;
  fidl::SyncClient<fuchsia_driver_framework::NodeController> node_controller_1_;
};

}  // namespace

FUCHSIA_DRIVER_EXPORT(TopBDriver);