blob: ee34ad89bcce7a48b4a7ef47dd22102f1ef3e132 [file] [log] [blame]
// Copyright 2014 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 "base/memory/scoped_ptr.h"
#include "base/message_loop/message_loop.h"
#include "base/synchronization/waitable_event.h"
#include "base/threading/simple_thread.h"
#include "mojo/application_manager/application_loader.h"
namespace mojo {
// TODO(tim): Eventually this should be Android-only to support services
// that we need to bundle with the shell (such as NetworkService). Perhaps
// we should move it to shell/ as well.
class MOJO_APPLICATION_MANAGER_EXPORT BackgroundShellApplicationLoader
: public ApplicationLoader,
public base::DelegateSimpleThread::Delegate {
BackgroundShellApplicationLoader(scoped_ptr<ApplicationLoader> real_loader,
const std::string& thread_name,
base::MessageLoop::Type message_loop_type);
virtual ~BackgroundShellApplicationLoader();
// ApplicationLoader overrides:
virtual void Load(ApplicationManager* manager,
const GURL& url,
scoped_refptr<LoadCallbacks> callbacks) OVERRIDE;
virtual void OnServiceError(ApplicationManager* manager,
const GURL& url) OVERRIDE;
class BackgroundLoader;
// |base::DelegateSimpleThread::Delegate| method:
virtual void Run() OVERRIDE;
// These functions are exected on the background thread. They call through
// to |background_loader_| to do the actual loading.
// TODO: having this code take a |manager| is fragile (as ApplicationManager
// isn't thread safe).
void LoadOnBackgroundThread(ApplicationManager* manager,
const GURL& url,
ScopedMessagePipeHandle* shell_handle);
void OnServiceErrorOnBackgroundThread(ApplicationManager* manager,
const GURL& url);
bool quit_on_shutdown_;
scoped_ptr<ApplicationLoader> loader_;
const base::MessageLoop::Type message_loop_type_;
const std::string thread_name_;
// Created on |thread_| during construction of |this|. Protected against
// uninitialized use by |message_loop_created_|, and protected against
// use-after-free by holding a reference to the thread-safe object. Note
// that holding a reference won't hold |thread_| from exiting.
scoped_refptr<base::TaskRunner> task_runner_;
base::WaitableEvent message_loop_created_;
// Lives on |thread_|.
base::Closure quit_closure_;
scoped_ptr<base::DelegateSimpleThread> thread_;
// Lives on |thread_|. Trivial interface that calls through to |loader_|.
BackgroundLoader* background_loader_;
} // namespace mojo