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// Copyright 2019 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_KEYED_SERVICE_CORE_SIMPLE_DEPENDENCY_MANAGER_H_
#define COMPONENTS_KEYED_SERVICE_CORE_SIMPLE_DEPENDENCY_MANAGER_H_
#include "components/keyed_service/core/dependency_manager.h"
#include "components/keyed_service/core/keyed_service_export.h"
class SimpleFactoryKey;
// A singleton that listens for owners of SimpleFactoryKey' destruction
// notifications and rebroadcasts them to each SimpleKeyedBaseFactory in a safe
// order based on the stated dependencies by each service.
class KEYED_SERVICE_EXPORT SimpleDependencyManager : public DependencyManager {
public:
SimpleDependencyManager();
SimpleDependencyManager(const SimpleDependencyManager&) = delete;
SimpleDependencyManager& operator=(const SimpleDependencyManager&) = delete;
// Called by each owners of SimpleFactoryKey before it is destroyed in order
// to destroy all services associated with |key|.
void DestroyKeyedServices(SimpleFactoryKey* key);
static SimpleDependencyManager* GetInstance();
// Registers profile-specific preferences for all services via |registry|.
// |key| is used to prevent multiple registrations on the same BrowserContext
// in tests.
void RegisterProfilePrefsForServices(
user_prefs::PrefRegistrySyncable* pref_registry);
// Create services for key.
void CreateServices(SimpleFactoryKey* key);
// Create services for test key - these contexts will not create
// services for any SimpleKeyedBaseFactories that return true from
// ServiceIsNULLWhileTesting().
void CreateServicesForTest(SimpleFactoryKey* key);
// Marks |context| as live (i.e., not stale). This method can be called as a
// safeguard against |AssertContextWasntDestroyed()| checks going off due to
// |context| aliasing an instance from a prior construction.
void MarkContextLive(SimpleFactoryKey* key);
private:
~SimpleDependencyManager() override;
#ifndef NDEBUG
// DependencyManager:
void DumpContextDependencies(void* context) const final;
#endif // NDEBUG
};
#endif // COMPONENTS_KEYED_SERVICE_CORE_SIMPLE_DEPENDENCY_MANAGER_H_
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