mirror of
https://github.com/Tencent/MMKV.git
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guoling
590 lines
18 KiB
C++
590 lines
18 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) 2019 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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#include "MMKVPredef.h"
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#ifdef MMKV_APPLE
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# include "CodedInputData.h"
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# include "CodedOutputData.h"
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# include "InterProcessLock.h"
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# include "MMKV.h"
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# include "MemoryFile.h"
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# include "MiniPBCoder.h"
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# include "PBUtility.h"
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# include "ScopedLock.hpp"
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# include "ThreadLock.h"
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# include "aes/AESCrypt.h"
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# include <sys/utsname.h>
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# include <sys/sysctl.h>
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# include "MMKV_OSX.h"
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# include "MMKVLog.h"
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# ifdef MMKV_IOS
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# include <sys/mman.h>
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# endif
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# ifdef __aarch64__
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# include "crc32/Checksum.h"
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# endif
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# if __has_feature(objc_arc)
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# error This file must be compiled with MRC. Use -fno-objc-arc flag.
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# endif
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using namespace std;
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using namespace mmkv;
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extern ThreadLock *g_instanceLock;
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extern MMKVPath_t g_rootDir;
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MMKV_NAMESPACE_BEGIN
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HybridString::HybridString(string_view cpp) {
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if (cpp.empty()) {
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str = nil;
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} else {
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str = [[NSString alloc] initWithBytesNoCopy:(void*)cpp.data() length:cpp.length() encoding:NSUTF8StringEncoding freeWhenDone:NO];
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}
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}
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HybridString::~HybridString() {
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[str release];
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}
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HybridStringCP::HybridStringCP(string_view cpp) {
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if (cpp.empty()) {
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str = nil;
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} else {
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str = [[NSString alloc] initWithBytes:(void*)cpp.data() length:cpp.length() encoding:NSUTF8StringEncoding];
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}
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}
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HybridStringCP::~HybridStringCP() {
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[str release];
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}
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bool MMKV::set(bool value, std::string_view key) {
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return set(value, key, m_expiredInSeconds);
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}
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bool MMKV::set(bool value, std::string_view key, uint32_t expireDuration) {
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HybridStringCP hybridKey = key;
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return set(value, hybridKey.str, expireDuration);
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}
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bool MMKV::set(int32_t value, std::string_view key) {
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return set(value, key, m_expiredInSeconds);
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}
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bool MMKV::set(int32_t value, std::string_view key, uint32_t expireDuration) {
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HybridStringCP hybridKey = key;
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return set(value, hybridKey.str, expireDuration);
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}
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bool MMKV::set(uint32_t value, std::string_view key) {
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return set(value, key, m_expiredInSeconds);
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}
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bool MMKV::set(uint32_t value, std::string_view key, uint32_t expireDuration) {
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HybridStringCP hybridKey = key;
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return set(value, hybridKey.str, expireDuration);
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}
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bool MMKV::set(int64_t value, std::string_view key) {
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return set(value, key, m_expiredInSeconds);
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}
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bool MMKV::set(int64_t value, std::string_view key, uint32_t expireDuration) {
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HybridStringCP hybridKey = key;
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return set(value, hybridKey.str, expireDuration);
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}
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bool MMKV::set(uint64_t value, std::string_view key) {
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return set(value, key, m_expiredInSeconds);
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}
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bool MMKV::set(uint64_t value, std::string_view key, uint32_t expireDuration) {
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HybridStringCP hybridKey = key;
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return set(value, hybridKey.str, expireDuration);
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}
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bool MMKV::set(float value, std::string_view key) {
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return set(value, key, m_expiredInSeconds);
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}
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bool MMKV::set(float value, std::string_view key, uint32_t expireDuration) {
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HybridStringCP hybridKey = key;
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return set(value, hybridKey.str, expireDuration);
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}
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bool MMKV::set(double value, std::string_view key) {
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return set(value, key, m_expiredInSeconds);
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}
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bool MMKV::set(double value, std::string_view key, uint32_t expireDuration) {
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HybridStringCP hybridKey = key;
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return set(value, hybridKey.str, expireDuration);
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}
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bool MMKV::set(const char *value, std::string_view key) {
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return set(value, key, m_expiredInSeconds);
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}
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bool MMKV::set(const char *value, std::string_view key, uint32_t expireDuration) {
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HybridStringCP hybridKey = key;
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return set(value, hybridKey.str, expireDuration);
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}
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bool MMKV::set(const std::string &value, std::string_view key) {
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return set(value, key, m_expiredInSeconds);
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}
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bool MMKV::set(const std::string &value, std::string_view key, uint32_t expireDuration) {
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HybridStringCP hybridKey = key;
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return set(value, hybridKey.str, expireDuration);
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}
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bool MMKV::set(std::string_view value, std::string_view key) {
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return set(value, key, m_expiredInSeconds);
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}
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bool MMKV::set(std::string_view value, std::string_view key, uint32_t expireDuration) {
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HybridStringCP hybridKey = key;
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return set(value, hybridKey.str, expireDuration);
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}
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bool MMKV::set(const mmkv::MMBuffer &value, std::string_view key) {
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return set(value, key, m_expiredInSeconds);
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}
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bool MMKV::set(const mmkv::MMBuffer &value, std::string_view key, uint32_t expireDuration) {
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HybridStringCP hybridKey = key;
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return set(value, hybridKey.str, expireDuration);
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}
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bool MMKV::set(const std::vector<std::string> &vector, std::string_view key) {
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return set(vector, key, m_expiredInSeconds);
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}
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bool MMKV::set(const std::vector<std::string> &vector, std::string_view key, uint32_t expireDuration) {
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HybridStringCP hybridKey = key;
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return set(vector, hybridKey.str, expireDuration);
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}
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bool MMKV::containsKey(std::string_view key) {
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HybridString hybridKey = key;
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return containsKey(hybridKey.str);
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}
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bool MMKV::removeValueForKey(std::string_view key) {
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HybridString hybridKey = key;
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return removeValueForKey(hybridKey.str);
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}
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bool MMKV::getBool(std::string_view key, bool defaultValue, bool *hasValue) {
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HybridString hybridKey = key;
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return getBool(hybridKey.str, defaultValue, hasValue);
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}
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int32_t MMKV::getInt32(std::string_view key, int32_t defaultValue, bool *hasValue) {
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HybridString hybridKey = key;
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return getInt32(hybridKey.str, defaultValue, hasValue);
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}
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uint32_t MMKV::getUInt32(std::string_view key, uint32_t defaultValue, bool *hasValue) {
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HybridString hybridKey = key;
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return getUInt32(hybridKey.str, defaultValue, hasValue);
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}
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int64_t MMKV::getInt64(std::string_view key, int64_t defaultValue, bool *hasValue) {
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HybridString hybridKey = key;
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return getInt64(hybridKey.str, defaultValue, hasValue);
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}
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uint64_t MMKV::getUInt64(std::string_view key, uint64_t defaultValue, bool *hasValue) {
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HybridString hybridKey = key;
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return getUInt64(hybridKey.str, defaultValue, hasValue);
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}
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float MMKV::getFloat(std::string_view key, float defaultValue, bool *hasValue) {
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HybridString hybridKey = key;
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return getFloat(hybridKey.str, defaultValue, hasValue);
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}
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double MMKV::getDouble(std::string_view key, double defaultValue, bool *hasValue) {
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HybridString hybridKey = key;
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return getDouble(hybridKey.str, defaultValue, hasValue);
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}
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bool MMKV::getString(std::string_view key, std::string &result, bool inplaceModification) {
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HybridString hybridKey = key;
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return getString(hybridKey.str, result, inplaceModification);
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}
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mmkv::MMBuffer MMKV::getDataForKey(std::string_view key) {
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HybridString hybridKey = key;
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return getDataForKey(hybridKey.str);
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}
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bool MMKV::setDataForKey(mmkv::MMBuffer &&data, std::string_view key, bool isDataHolder) {
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HybridStringCP hybridKey = key;
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return setDataForKey(std::move(data), hybridKey.str, isDataHolder);
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}
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bool MMKV::getVector(std::string_view key, std::vector<std::string> &result) {
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HybridString hybridKey = key;
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return getVector(hybridKey.str, result);
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}
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# ifdef MMKV_IOS
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static bool g_isInBackground = false;
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void MMKV::setIsInBackground(bool isInBackground) {
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if (!g_instanceLock) {
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return;
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}
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SCOPED_LOCK(g_instanceLock);
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g_isInBackground = isInBackground;
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MMKVInfo("g_isInBackground:%d", g_isInBackground);
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}
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bool MMKV::isInBackground() {
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if (!g_instanceLock) {
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return true;
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}
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SCOPED_LOCK(g_instanceLock);
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return g_isInBackground;
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}
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# endif // MMKV_IOS
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bool MMKV::set(NSObject<NSCoding> *__unsafe_unretained obj, MMKVKey_t key) {
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return set(obj, key, m_expiredInSeconds);
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}
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bool MMKV::set(NSObject<NSCoding> *__unsafe_unretained obj, MMKVKey_t key, uint32_t expireDuration) {
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if (isKeyEmpty(key)) {
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return false;
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}
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if (!obj) {
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removeValueForKey(key);
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return true;
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}
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NSData *tmpData = nil;
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if ([obj isKindOfClass:NSString.class]) {
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auto str = (NSString *) obj;
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tmpData = [str dataUsingEncoding:NSUTF8StringEncoding];
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} else if ([obj isKindOfClass:NSData.class]) {
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tmpData = (NSData *) obj;
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}
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if (tmpData) {
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// delay write the size needed for encoding tmpData
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// avoid memory copying
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if (mmkv_likely(!m_enableKeyExpire)) {
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return setDataForKey(MMBuffer(tmpData, MMBufferNoCopy), key, true);
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} else {
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MMBuffer data(tmpData, MMBufferNoCopy);
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if (data.length() > 0) {
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auto tmp = MMBuffer(pbMMBufferSize(data) + Fixed32Size);
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CodedOutputData output(tmp.getPtr(), tmp.length());
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output.writeData(data);
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auto time = (expireDuration != 0) ? getCurrentTimeInSecond() + expireDuration : 0;
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output.writeRawLittleEndian32(UInt32ToInt32(time));
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data = std::move(tmp);
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}
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return setDataForKey(std::move(data), key);
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}
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} else if ([obj isKindOfClass:NSDate.class]) {
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NSDate *oDate = (NSDate *) obj;
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double time = oDate.timeIntervalSince1970;
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return set(time, key, expireDuration);
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} else {
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/*if ([object conformsToProtocol:@protocol(NSCoding)])*/ {
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@try {
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NSError *error = nil;
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auto archived = [NSKeyedArchiver archivedDataWithRootObject:obj requiringSecureCoding:NO error:&error];
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if (error) {
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MMKVError("fail to archive: %@", error);
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return false;
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}
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if (archived.length > 0) {
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if (mmkv_likely(!m_enableKeyExpire)) {
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return setDataForKey(MMBuffer(archived, MMBufferNoCopy), key);
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} else {
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MMBuffer data(archived, MMBufferNoCopy);
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if (data.length() > 0) {
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auto tmp = MMBuffer(data.length() + Fixed32Size);
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CodedOutputData output(tmp.getPtr(), tmp.length());
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output.writeRawData(data); // NSKeyedArchiver has its own size management
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auto time = (expireDuration != 0) ? getCurrentTimeInSecond() + expireDuration : 0;
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output.writeRawLittleEndian32(UInt32ToInt32(time));
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data = std::move(tmp);
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}
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return setDataForKey(std::move(data), key);
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}
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}
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} @catch (NSException *exception) {
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MMKVError("exception: %@", exception.reason);
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}
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}
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}
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return false;
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}
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static id unSecureUnArchiveObjectWithData(NSData *data) {
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@try {
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NSError *error = nil;
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auto unarchiver = [[NSKeyedUnarchiver alloc] initForReadingFromData:data error:&error];
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if (error) {
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MMKVError("fail to init unarchiver %@", error);
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return nil;
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}
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unarchiver.requiresSecureCoding = NO;
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id result = [unarchiver decodeObjectForKey:NSKeyedArchiveRootObjectKey];
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[unarchiver release];
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return result;
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} @catch (NSException *exception) {
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MMKVError("exception: %@", exception.reason);
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}
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return nil;
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}
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NSObject *MMKV::getObject(MMKVKey_t key, Class cls) {
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if (isKeyEmpty(key) || !cls) {
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return nil;
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}
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SCOPED_LOCK(m_lock);
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SCOPED_LOCK(m_sharedProcessLock);
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auto data = getDataForKey(key);
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if (data.length() > 0) {
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if (MiniPBCoder::isCompatibleClass(cls)) {
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try {
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auto result = MiniPBCoder::decodeObject(data, cls);
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return result;
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} catch (std::exception &exception) {
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MMKVError("%s", exception.what());
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} catch (...) {
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MMKVError("decode fail");
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}
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} else {
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if ([cls conformsToProtocol:@protocol(NSCoding)]) {
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auto tmp = [NSData dataWithBytesNoCopy:data.getPtr() length:data.length() freeWhenDone:NO];
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return unSecureUnArchiveObjectWithData(tmp);
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}
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}
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}
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return nil;
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}
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# ifndef MMKV_DISABLE_CRYPT
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pair<bool, KeyValueHolder>
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MMKV::appendDataWithKey(const MMBuffer &data, MMKVKey_t key, const KeyValueHolderCrypt &kvHolder, bool isDataHolder) {
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if (kvHolder.type != KeyValueHolderType_Offset) {
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return appendDataWithKey(data, key, isDataHolder);
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}
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SCOPED_LOCK(m_exclusiveProcessLock);
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uint32_t keyLength = kvHolder.keySize;
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// size needed to encode the key
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size_t rawKeySize = keyLength + pbRawVarint32Size(keyLength);
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auto basePtr = (uint8_t *) m_file->getMemory() + Fixed32Size;
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MMBuffer keyData(rawKeySize);
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AESCrypt decrypter = m_crypter->cloneWithStatus(kvHolder.cryptStatus);
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decrypter.decrypt(basePtr + kvHolder.offset, keyData.getPtr(), rawKeySize);
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return doAppendDataWithKey(data, keyData, isDataHolder, keyLength);
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}
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pair<bool, KeyValueHolder>
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MMKV::overrideDataWithKey(const MMBuffer &data, MMKVKey_t key, const KeyValueHolderCrypt &kvHolder, bool isDataHolder) {
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if (kvHolder.type != KeyValueHolderType_Offset) {
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return overrideDataWithKey(data, key, isDataHolder);
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}
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SCOPED_LOCK(m_exclusiveProcessLock);
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uint32_t keyLength = kvHolder.keySize;
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// size needed to encode the key
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size_t rawKeySize = keyLength + pbRawVarint32Size(keyLength);
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auto basePtr = (uint8_t *) m_file->getMemory() + Fixed32Size;
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MMBuffer keyData(rawKeySize);
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AESCrypt decrypter = m_crypter->cloneWithStatus(kvHolder.cryptStatus);
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decrypter.decrypt(basePtr + kvHolder.offset, keyData.getPtr(), rawKeySize);
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return doOverrideDataWithKey(data, keyData, isDataHolder, keyLength);
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}
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# endif
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NSArray *MMKV::allKeysObjC(bool filterExpire) {
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SCOPED_LOCK(m_lock);
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checkLoadData();
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if (mmkv_unlikely(filterExpire && m_enableKeyExpire)) {
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SCOPED_LOCK(m_exclusiveProcessLock);
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fullWriteback(nullptr, true);
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}
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NSMutableArray *keys = [NSMutableArray array];
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if (m_crypter) {
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for (const auto &pair : *m_dicCrypt) {
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[keys addObject:pair.first];
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}
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} else {
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for (const auto &pair : *m_dic) {
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[keys addObject:pair.first];
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}
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}
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return keys;
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}
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std::vector<std::string> MMKV::allKeys(bool filterExpire) {
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@autoreleasepool {
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auto arrKeys = allKeysObjC(filterExpire);
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std::vector<std::string> vec;
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for (NSString* str in arrKeys) {
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vec.push_back(str.UTF8String);
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}
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return vec;
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}
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}
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bool MMKV::removeValuesForKeys(NSArray *arrKeys) {
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if (isReadOnly()) {
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MMKVWarning("[%s] file readonly", m_mmapID.c_str());
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return false;
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}
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if (arrKeys.count == 0) {
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return true;
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}
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if (arrKeys.count == 1) {
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return removeValueForKey(arrKeys[0]);
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}
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SCOPED_LOCK(m_lock);
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SCOPED_LOCK(m_exclusiveProcessLock);
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checkLoadData();
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size_t deleteCount = 0;
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if (m_crypter) {
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for (NSString *key in arrKeys) {
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auto itr = m_dicCrypt->find(key);
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if (itr != m_dicCrypt->end()) {
|
|
auto oldKey = itr->first;
|
|
m_dicCrypt->erase(itr);
|
|
[oldKey release];
|
|
deleteCount++;
|
|
}
|
|
}
|
|
} else {
|
|
for (NSString *key in arrKeys) {
|
|
auto itr = m_dic->find(key);
|
|
if (itr != m_dic->end()) {
|
|
auto oldKey = itr->first;
|
|
m_dic->erase(itr);
|
|
[oldKey release];
|
|
deleteCount++;
|
|
}
|
|
}
|
|
}
|
|
if (deleteCount > 0) {
|
|
m_hasFullWriteback = false;
|
|
|
|
return fullWriteback();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool MMKV::removeValuesForKeys(const std::vector<std::string> &arrKeys) {
|
|
if (arrKeys.empty()) {
|
|
return true;
|
|
}
|
|
NSMutableArray* arr = [[NSMutableArray alloc] initWithCapacity:arrKeys.size()];
|
|
for (auto& key : arrKeys) {
|
|
[arr addObject:HybridString(key).str];
|
|
}
|
|
auto ret = removeValuesForKeys(arr);
|
|
[arr release];
|
|
return ret;
|
|
}
|
|
|
|
void MMKV::enumerateKeys(EnumerateBlock block) {
|
|
if (block == nil) {
|
|
return;
|
|
}
|
|
SCOPED_LOCK(m_lock);
|
|
checkLoadData();
|
|
|
|
MMKVInfo("enumerate [%s] begin", m_mmapID.c_str());
|
|
if (m_crypter) {
|
|
for (const auto &pair : *m_dicCrypt) {
|
|
BOOL stop = NO;
|
|
block(pair.first, &stop);
|
|
if (stop) {
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
for (const auto &pair : *m_dic) {
|
|
BOOL stop = NO;
|
|
block(pair.first, &stop);
|
|
if (stop) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
MMKVInfo("enumerate [%s] finish", m_mmapID.c_str());
|
|
}
|
|
|
|
void GetAppleMachineInfo(int &device, int &version) {
|
|
device = UnKnown;
|
|
version = 0;
|
|
|
|
# if 0
|
|
struct utsname systemInfo = {};
|
|
uname(&systemInfo);
|
|
std::string machine(systemInfo.machine);
|
|
# else
|
|
size_t size;
|
|
sysctlbyname("hw.machine", nullptr, &size, nullptr, 0);
|
|
char *answer = (char *) malloc(size);
|
|
sysctlbyname("hw.machine", answer, &size, nullptr, 0);
|
|
std::string machine(answer);
|
|
free(answer);
|
|
# endif
|
|
|
|
if (machine.find("PowerMac") != std::string::npos || machine.find("Power Macintosh") != std::string::npos) {
|
|
device = PowerMac;
|
|
} else if (machine.find("Mac") != std::string::npos || machine.find("Macintosh") != std::string::npos) {
|
|
device = Mac;
|
|
} else if (machine.find("iPhone") != std::string::npos) {
|
|
device = iPhone;
|
|
} else if (machine.find("iPod") != std::string::npos) {
|
|
device = iPod;
|
|
} else if (machine.find("iPad") != std::string::npos) {
|
|
device = iPad;
|
|
} else if (machine.find("AppleTV") != std::string::npos) {
|
|
device = AppleTV;
|
|
} else if (machine.find("AppleWatch") != std::string::npos) {
|
|
device = AppleWatch;
|
|
}
|
|
auto pos = machine.find_first_of("0123456789");
|
|
if (pos != std::string::npos) {
|
|
version = std::atoi(machine.substr(pos).c_str());
|
|
}
|
|
}
|
|
|
|
MMKV_NAMESPACE_END
|
|
|
|
#endif // MMKV_APPLE
|