bin/guest/runner/runner_impl.cc

// Copyright 2018 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 "garnet/bin/guest/runner/runner_impl.h"

#include <memory>

#include "lib/fxl/logging.h"

namespace guest_runner {

RunnerImpl::RunnerImpl()
    : context_(component::StartupContext::CreateFromStartupInfo()) {
  context_->environment()->GetLauncher(launcher_.NewRequest());
  context_->outgoing().AddPublicService(bindings_.GetHandler(this));
}

void RunnerImpl::StartComponent(
    fuchsia::sys::Package application, fuchsia::sys::StartupInfo startup_info,
    ::fidl::InterfaceRequest<fuchsia::sys::ComponentController> controller) {
  fuchsia::sys::LaunchInfo launch_info;

  // Pass-through our arguments directly to the vmm package.
  launch_info.url = "vmm";
  launch_info.arguments = std::move(startup_info.launch_info.arguments);

  // Expose the specific guest package under the /guest namespace.
  launch_info.flat_namespace = fuchsia::sys::FlatNamespace::New();
  for (size_t i = 0; i < startup_info.flat_namespace.paths->size(); ++i) {
    const auto& path = (*startup_info.flat_namespace.paths)[i];
    if (path == "/pkg") {
      launch_info.flat_namespace->paths.push_back("/guest");
      launch_info.flat_namespace->directories.push_back(
          std::move((*startup_info.flat_namespace.directories)[i]));
    }
  }

  // Pass-through our directory request.
  launch_info.directory_request =
      std::move(startup_info.launch_info.directory_request);

  launcher_->CreateComponent(std::move(launch_info), std::move(controller));
}

}  // namespace guest_runner