blob: f8e423b35e00fe0d30ea9edcf56fe84596726ff4 [file] [log] [blame]
/*
*
* Copyright (c) 2022 Project CHIP Authors
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file
* Provides an implementation of the key-value storage manager class
* for Open IOT SDK platform.
*/
#pragma once
#include <platform/KeyValueStoreManager.h>
namespace chip {
namespace DeviceLayer {
namespace PersistedStorage {
class KeyValueStoreManagerImpl final : public KeyValueStoreManager
{
// Allow the KeyValueStoreManager interface class to delegate method calls to
// the implementation methods provided by this class.
friend class KeyValueStoreManager;
public:
CHIP_ERROR Init(void);
CHIP_ERROR Shutdown(void);
CHIP_ERROR _Get(const char * key, void * value, size_t value_size, size_t * read_bytes_size = nullptr, size_t offset = 0);
CHIP_ERROR _Delete(const char * key);
CHIP_ERROR _Put(const char * key, const void * value, size_t value_size);
private:
// ===== Members for internal use by the following friends.
friend KeyValueStoreManager & KeyValueStoreMgr();
friend KeyValueStoreManagerImpl & KeyValueStoreMgrImpl();
CHIP_ERROR ToKeyValueStoreManagerError(CHIP_ERROR err);
static KeyValueStoreManagerImpl sInstance;
};
/**
* Returns the public interface of the KeyValueStoreManager singleton object.
*
* Chip applications should use this to access features of the KeyValueStoreManager object
* that are common to all platforms.
*/
inline KeyValueStoreManager & KeyValueStoreMgr(void)
{
return KeyValueStoreManagerImpl::sInstance;
}
/**
* Returns the platform-specific implementation of the KeyValueStoreManager singleton object.
*
* Chip applications can use this to gain access to features of the KeyValueStoreManager
* that are specific to the OpenIoTSDK platform.
*/
inline KeyValueStoreManagerImpl & KeyValueStoreMgrImpl(void)
{
return KeyValueStoreManagerImpl::sInstance;
}
} // namespace PersistedStorage
} // namespace DeviceLayer
} // namespace chip