mirror of
https://github.com/Tencent/MMKV.git
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guoling
60 lines
2.0 KiB
C++
60 lines
2.0 KiB
C++
/*
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* Tencent is pleased to support the open source community by making
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* MMKV available.
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*
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* Copyright (C) 2026 THL A29 Limited, a Tencent company.
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* All rights reserved.
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*
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* Licensed under the BSD 3-Clause License (the "License"); you may not use
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* this file except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* https://opensource.org/licenses/BSD-3-Clause
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MMKVCoreHandler_h
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#define MMKVCoreHandler_h
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#include "MMKVPredef.h"
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#ifdef __cplusplus
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namespace mmkv {
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// unified callback handler for MMKV
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class MMKVHandler {
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public:
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virtual ~MMKVHandler() = default;
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// by default MMKV will print log using system log
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// implement this method to redirect MMKV's log
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virtual void mmkvLog(MMKVLogLevel level, const char *file, int line, const char *function, MMKVLog_t message) {}
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// by default MMKV will discard all data on crc32-check failure
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// return `OnErrorRecover` to recover any data on the file
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virtual MMKVRecoverStrategic onMMKVCRCCheckFail(const std::string &mmapID) { return OnErrorDiscard; }
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// by default MMKV will discard all data on file length mismatch
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// return `OnErrorRecover` to recover any data on the file
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virtual MMKVRecoverStrategic onMMKVFileLengthError(const std::string &mmapID) { return OnErrorDiscard; }
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// called when content is changed by other process
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// doesn't guarantee real-time notification
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virtual void onContentChangedByOuterProcess(const std::string &mmapID) {}
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// called when an MMKV file is loaded successfully
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virtual void onMMKVContentLoadSuccessfully(const std::string &mmapID) {}
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};
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} // namespace mmkv
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#endif
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#endif /* MMKVHandler_h */
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