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// Copyright 2015 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.
#ifndef CONTENT_BROWSER_BACKGROUND_SYNC_BACKGROUND_SYNC_CONTEXT_IMPL_H_
#define CONTENT_BROWSER_BACKGROUND_SYNC_BACKGROUND_SYNC_CONTEXT_IMPL_H_
#include <set>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "content/common/background_sync_service.mojom.h"
#include "content/common/content_export.h"
#include "content/public/browser/background_sync_context.h"
namespace content {
class BackgroundSyncManager;
class BackgroundSyncServiceImpl;
class ServiceWorkerContextWrapper;
// Implements the BackgroundSyncContext. One instance of this exists per
// StoragePartition, and services multiple child processes/origins. Most logic
// is delegated to the owned BackgroundSyncManager instance, which is only
// accessed on the IO thread.
class CONTENT_EXPORT BackgroundSyncContextImpl : public BackgroundSyncContext {
public:
BackgroundSyncContextImpl();
// Init and Shutdown are for use on the UI thread when the
// StoragePartition is being setup and torn down.
void Init(const scoped_refptr<ServiceWorkerContextWrapper>& context);
// Shutdown must be called before deleting this. Call on the UI thread.
void Shutdown();
// Create a BackgroundSyncServiceImpl that is owned by this. Call on the UI
// thread.
void CreateService(mojo::InterfaceRequest<BackgroundSyncService> request);
// Called by BackgroundSyncServiceImpl objects so that they can
// be deleted. Call on the IO thread.
void ServiceHadConnectionError(BackgroundSyncServiceImpl* service);
// Call on the IO thread.
BackgroundSyncManager* background_sync_manager() const override;
protected:
~BackgroundSyncContextImpl() override;
private:
friend class BackgroundSyncServiceImplTest;
void CreateBackgroundSyncManager(
const scoped_refptr<ServiceWorkerContextWrapper>& context);
void CreateServiceOnIOThread(
mojo::InterfaceRequest<BackgroundSyncService> request);
void ShutdownOnIO();
// Only accessed on the IO thread.
scoped_ptr<BackgroundSyncManager> background_sync_manager_;
// The services are owned by this. They're either deleted
// during ShutdownOnIO or when the channel is closed via
// ServiceHadConnectionError. Only accessed on the IO thread.
std::set<BackgroundSyncServiceImpl*> services_;
DISALLOW_COPY_AND_ASSIGN(BackgroundSyncContextImpl);
};
} // namespace content
#endif // CONTENT_BROWSER_BACKGROUND_SYNC_BACKGROUND_SYNC_CONTEXT_IMPL_H_
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