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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_CRONET_CRONET_PREFS_MANAGER_H_
#define COMPONENTS_CRONET_CRONET_PREFS_MANAGER_H_
#include <string>
#include "base/memory/ref_counted.h"
#include "base/threading/thread_checker.h"
class JsonPrefStore;
class PrefService;
namespace base {
class SingleThreadTaskRunner;
class SequencedTaskRunner;
} // namespace base
namespace net {
class HostCache;
class NetLog;
class NetworkQualitiesPrefsManager;
class NetworkQualityEstimator;
class URLRequestContextBuilder;
} // namespace net
namespace cronet {
class HostCachePersistenceManager;
// Manages the PrefService, JsonPrefStore and all associated persistence
// managers used by Cronet such as NetworkQualityPrefsManager,
// HostCachePersistenceManager, etc. The constructor, destructor and all
// other methods of this class should be called on the network thread.
class CronetPrefsManager {
public:
CronetPrefsManager(
const std::string& storage_path,
scoped_refptr<base::SingleThreadTaskRunner> network_task_runner,
scoped_refptr<base::SequencedTaskRunner> file_task_runner,
bool enable_network_quality_estimator,
bool enable_host_cache_persistence,
net::NetLog* net_log,
net::URLRequestContextBuilder* context_builder);
CronetPrefsManager(const CronetPrefsManager&) = delete;
CronetPrefsManager& operator=(const CronetPrefsManager&) = delete;
virtual ~CronetPrefsManager();
void SetupNqePersistence(net::NetworkQualityEstimator* nqe);
void SetupHostCachePersistence(net::HostCache* host_cache,
int host_cache_persistence_delay_ms,
net::NetLog* net_log);
// Prepares |this| for shutdown.
void PrepareForShutdown();
private:
// |pref_service_| should outlive the HttpServerPropertiesManager owned by
// |host_cache_persistence_manager_|.
std::unique_ptr<PrefService> pref_service_;
scoped_refptr<JsonPrefStore> json_pref_store_;
// Manages the writing and reading of the network quality prefs.
std::unique_ptr<net::NetworkQualitiesPrefsManager>
network_qualities_prefs_manager_;
// Manages reading and writing the HostCache pref when persistence is enabled.
// Must be destroyed before |context_| owned by CronetUrlContextAdapter
// (because it owns the HostResolverImpl,
// which owns the HostCache) and |pref_service_|.
std::unique_ptr<HostCachePersistenceManager> host_cache_persistence_manager_;
// Checks that all methods are called on the network thread.
THREAD_CHECKER(thread_checker_);
}; // class CronetPrefsManager
} // namespace cronet
#endif // COMPONENTS_CRONET_CRONET_PREFS_MANAGER_H_
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