fuchsia/engine/context_provider_main.cc

// Copyright 2018 The Chromium 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/engine/context_provider_main.h"

#include <lib/sys/cpp/component_context.h>
#include <lib/sys/cpp/outgoing_directory.h>

#include "base/command_line.h"
#include "base/fuchsia/default_context.h"
#include "base/fuchsia/scoped_service_binding.h"
#include "base/logging.h"
#include "base/message_loop/message_pump_type.h"
#include "base/run_loop.h"
#include "base/task/single_thread_task_executor.h"
#include "components/version_info/version_info.h"
#include "fuchsia/base/init_logging.h"
#include "fuchsia/base/lifecycle_impl.h"
#include "fuchsia/engine/context_provider_impl.h"

namespace {

std::string GetVersionString() {
  std::string version_string = version_info::GetVersionNumber();
#if !defined(OFFICIAL_BUILD)
  version_string += " (built at " + version_info::GetLastChange() + ")";
#endif  // !defined(OFFICIAL_BUILD)
  return version_string;
}

}  // namespace

int ContextProviderMain() {
  base::SingleThreadTaskExecutor main_task_executor(base::MessagePumpType::UI);
  sys::OutgoingDirectory* directory =
      base::fuchsia::ComponentContextForCurrentProcess()->outgoing().get();

  if (!cr_fuchsia::InitLoggingFromCommandLine(
          *base::CommandLine::ForCurrentProcess())) {
    return 1;
  }

  LOG(INFO) << "Starting WebEngine " << GetVersionString();

  ContextProviderImpl context_provider;

  base::fuchsia::ScopedServiceBinding<fuchsia::web::ContextProvider> binding(
      directory, &context_provider);

  base::fuchsia::ScopedServiceBinding<fuchsia::web::Debug> debug_binding(
      directory->debug_dir(), &context_provider);

  // Serve outgoing directory only after publishing all services.
  directory->ServeFromStartupInfo();

  base::RunLoop run_loop;
  cr_fuchsia::LifecycleImpl lifecycle(directory, run_loop.QuitClosure());

  run_loop.Run();

  return 0;
}