| /* |
| * |
| * Copyright (c) 2021-2022 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 |
| * Platform-specific key value storage implementation. |
| */ |
| |
| #pragma once |
| |
| #include <lib/core/CHIPPersistentStorageDelegate.h> |
| #include <platform/CHIPDeviceLayer.h> |
| #include <slist.h> |
| |
| #include "CYW30739Config.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); |
| |
| // NOTE: Currently this platform does not support partial and offset reads |
| // these will return CHIP_ERROR_NOT_IMPLEMENTED. |
| 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); |
| |
| CHIP_ERROR EraseAll(void); |
| |
| private: |
| using Config = Internal::CYW30739Config; |
| |
| static constexpr uint8_t mMaxEntryCount = 128; |
| |
| struct KeyStorage |
| { |
| KeyStorage(const char * key = nullptr); |
| |
| constexpr size_t GetSize() const { return sizeof(mValueSize) + strlen(mKey); } |
| bool IsMatchKey(const char * key) const; |
| |
| uint16_t mValueSize; |
| char mKey[PersistentStorageDelegate::kKeyLengthMax + 1]; |
| }; |
| |
| struct KeyConfigIdEntry : public slist_node_t |
| { |
| KeyConfigIdEntry(uint8_t configID, const KeyStorage & keyStorage) : mStorage(keyStorage), mConfigID(configID) {} |
| |
| constexpr Config::Key GetValueConfigKey() const |
| { |
| return Internal::CYW30739ConfigKey(Config::kChipKvsValue_KeyBase, mConfigID); |
| } |
| constexpr Config::Key GetKeyConfigKey() const |
| { |
| return Internal::CYW30739ConfigKey(Config::kChipKvsKey_KeyBase, mConfigID); |
| } |
| constexpr KeyConfigIdEntry * Next() const { return static_cast<KeyConfigIdEntry *>(next); } |
| constexpr uint8_t NextConfigID() const { return mConfigID + 1; } |
| constexpr uint16_t GetValueSize() const { return mStorage.mValueSize; } |
| constexpr void SetValueSize(uint16_t valueSize) { mStorage.mValueSize = valueSize; } |
| |
| KeyStorage mStorage; |
| uint8_t mConfigID; |
| }; |
| |
| KeyConfigIdEntry * AllocateEntry(const char * key); |
| KeyConfigIdEntry * FindEntry(const char * key, Optional<uint8_t> * freeConfigID = nullptr); |
| |
| // ===== Members for internal use by the following friends. |
| friend KeyValueStoreManager & KeyValueStoreMgr(); |
| friend KeyValueStoreManagerImpl & KeyValueStoreMgrImpl(); |
| |
| static KeyValueStoreManagerImpl sInstance; |
| |
| slist_node_t mKeyConfigIdList; |
| }; |
| |
| /** |
| * 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 ESP32 platform. |
| */ |
| inline KeyValueStoreManagerImpl & KeyValueStoreMgrImpl(void) |
| { |
| return KeyValueStoreManagerImpl::sInstance; |
| } |
| |
| } // namespace PersistedStorage |
| } // namespace DeviceLayer |
| } // namespace chip |