87 lines
2.3 KiB
C++
87 lines
2.3 KiB
C++
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/*
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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) 2018 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 MMKV_PBENCODEITEM_HPP
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#define MMKV_PBENCODEITEM_HPP
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#ifdef __cplusplus
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#include "MMKVPredef.h"
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#include "MMBuffer.h"
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#include <cstdint>
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#include <memory.h>
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namespace mmkv {
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enum PBEncodeItemType {
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PBEncodeItemType_None,
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PBEncodeItemType_Data,
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PBEncodeItemType_Container,
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#ifndef MMKV_APPLE
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PBEncodeItemType_String,
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#else
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PBEncodeItemType_NSString,
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PBEncodeItemType_NSData,
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PBEncodeItemType_NSDate,
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#endif
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};
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struct PBEncodeItem {
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PBEncodeItemType type;
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uint32_t compiledSize;
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uint32_t valueSize;
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union {
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const MMBuffer *bufferValue;
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#ifndef MMKV_APPLE
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const std::string *strValue;
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#else
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void *objectValue;
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void *tmpObjectValue; // this object should be released on dealloc
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#endif
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} value;
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PBEncodeItem() : type(PBEncodeItemType_None), compiledSize(0), valueSize(0) { memset(&value, 0, sizeof(value)); }
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#ifndef MMKV_APPLE
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// opt std::vector.push_back() on slow_path
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PBEncodeItem(PBEncodeItem &&other) = default;
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#else
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// opt std::vector.push_back() on slow_path
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PBEncodeItem(PBEncodeItem &&other)
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: type(other.type), compiledSize(other.compiledSize), valueSize(other.valueSize), value(other.value) {
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// omit unnecessary CFRetain() & CFRelease()
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other.type = PBEncodeItemType_None;
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}
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~PBEncodeItem() {
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if (type == PBEncodeItemType_NSString) {
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if (value.tmpObjectValue) {
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CFRelease(value.tmpObjectValue);
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}
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}
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}
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#endif // MMKV_APPLE
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};
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} // namespace mmkv
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#endif
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#endif //MMKV_PBENCODEITEM_HPP
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