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MMKV/Python/libmmkv_python.cpp
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/*
* Tencent is pleased to support the open source community by making
* MMKV available.
*
* Copyright (C) 2020 THL A29 Limited, a Tencent company.
* All rights reserved.
*
* Licensed under the BSD 3-Clause License (the "License"); you may not use
* this file except in compliance with the License. You may obtain a copy of
* the License at
*
* https://opensource.org/licenses/BSD-3-Clause
*
* 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.
*/
#include <MMKV/MMKV.h>
#include <pybind11/functional.h>
#include <pybind11/pybind11.h>
#include <pybind11/stl.h>
#ifdef MMKV_WIN32
#include <basetsd.h>
typedef SSIZE_T ssize_t;
#endif
using namespace mmkv;
using namespace std;
namespace py = pybind11;
static MMKVConfig pyArgsToConfig(MMKVMode mode, const string &cryptKey, const MMKVPath_t &rootDir,
size_t expectedCapacity, bool aes256, std::optional<bool> enableKeyExpire,
uint32_t expiredInSeconds, bool enableCompareBeforeSet,
std::optional<MMKVRecoverStrategic> recover, uint32_t itemSizeLimit) {
MMKVConfig config;
config.mode = mode;
config.aes256 = aes256;
config.cryptKey = (cryptKey.length() > 0) ? (string *) &cryptKey : nullptr;
config.rootPath = (rootDir.length() > 0) ? (MMKVPath_t *) &rootDir : nullptr;
config.expectedCapacity = expectedCapacity;
config.enableKeyExpire = enableKeyExpire;
config.expiredInSeconds = expiredInSeconds;
config.enableCompareBeforeSet = enableCompareBeforeSet;
config.recover = recover;
config.itemSizeLimit = itemSizeLimit;
return config;
}
static MMBuffer pyBytes2MMBuffer(const py::bytes &bytes) {
char *buffer = nullptr;
ssize_t length = 0;
if (PYBIND11_BYTES_AS_STRING_AND_SIZE(bytes.ptr(), &buffer, &length) == 0) {
return {buffer, static_cast<size_t>(length), MMBufferNoCopy};
}
return MMBuffer(0);
}
static function<void(MMKVLogLevel level, const char *file, int line, const char *function, const string &message)>
g_logHandler = nullptr;
static void MyLogHandler(MMKVLogLevel level, const char *file, int line, const char *function, const string &message) {
if (g_logHandler) {
g_logHandler(level, file, line, function, message);
}
}
static function<MMKVRecoverStrategic(const string &mmapID, MMKVErrorType errorType)> g_errorHandler = nullptr;
static MMKVRecoverStrategic MyErrorHandler(const string &mmapID, MMKVErrorType errorType) {
if (g_errorHandler) {
return g_errorHandler(mmapID, errorType);
}
return OnErrorDiscard;
}
static function<void(const string &mmapID)> g_contentHandler = nullptr;
static void MyContentChangeHandler(const std::string &mmapID) {
if (g_contentHandler) {
g_contentHandler(mmapID);
}
}
PYBIND11_MODULE(mmkv, m) {
m.doc() = "An efficient, small key-value storage framework developed by WeChat Team.";
py::enum_<MMKVMode>(m, "MMKVMode", py::arithmetic())
.value("SingleProcess", MMKVMode::MMKV_SINGLE_PROCESS)
.value("MultiProcess", MMKVMode::MMKV_MULTI_PROCESS)
.value("ReadOnly", MMKVMode::MMKV_READ_ONLY)
.export_values();
py::enum_<MMKVLogLevel>(m, "MMKVLogLevel")
.value("NoLog", MMKVLogLevel::MMKVLogNone)
.value("Debug", MMKVLogLevel::MMKVLogDebug)
.value("Info", MMKVLogLevel::MMKVLogInfo)
.value("Warning", MMKVLogLevel::MMKVLogWarning)
.value("Error", MMKVLogLevel::MMKVLogError)
.export_values();
py::enum_<SyncFlag>(m, "SyncFlag")
.value("Sync", SyncFlag::MMKV_SYNC)
.value("ASync", SyncFlag::MMKV_ASYNC)
.export_values();
py::enum_<MMKVRecoverStrategic>(m, "MMKVRecoverStrategic")
.value("OnErrorDiscard", MMKVRecoverStrategic::OnErrorDiscard)
.value("OnErrorRecover", MMKVRecoverStrategic::OnErrorRecover)
.export_values();
py::enum_<MMKVErrorType>(m, "MMKVErrorType")
.value("CRCCheckFail", MMKVErrorType::MMKVCRCCheckFail)
.value("FileLength", MMKVErrorType::MMKVFileLength)
.export_values();
py::class_<NameSpace, unique_ptr<NameSpace>> clsNameSpace(m, "NameSpace");
clsNameSpace.def("mmkvWithID", [](NameSpace &self, const string &mmapID, MMKVMode mode, const string &cryptKey,
const size_t expectedCapacity, bool aes256, std::optional<bool> enableKeyExpire,
uint32_t expiredInSeconds, bool enableCompareBeforeSet,std::optional<MMKVRecoverStrategic> recover,
uint32_t itemSizeLimit) {
auto config = pyArgsToConfig(mode, cryptKey, self.getRootDir(), expectedCapacity, aes256,
enableKeyExpire, expiredInSeconds, enableCompareBeforeSet, recover, itemSizeLimit);
return MMKV::mmkvWithID(mmapID, config);
},
"Parameters:\n"
" mmapID: all instances of the same mmapID share the same data and file storage\n"
" mode: pass MMKVMode.MultiProcess for a multi-process MMKV\n"
" cryptKey: pass a non-empty string for an encrypted MMKV, 32 bytes at most\n"
" expectedCapacity: the file size you expected when opening or creating file\n"
" aes256: use AES 256 key length\n"
" enableKeyExpire: enable auto key expiration\n"
" expiredInSeconds: expiration in seconds\n"
" enableCompareBeforeSet: enable compare before set, if new value is the same, dont update/insert\n"
" recover: recover strategy on file corruption\n"
" itemSizeLimit: size limit for a key-value pair\n",
py::arg("mmapID"), py::arg("mode") = MMKV_SINGLE_PROCESS, py::arg("cryptKey") = string(),
py::arg("expectedCapacity") = 0, py::arg("aes256") = false,
py::arg("enableKeyExpire") = std::nullopt, py::arg("expiredInSeconds") = 0,
py::arg("enableCompareBeforeSet") = false,
py::arg("recover") = std::nullopt,
py::arg("itemSizeLimit") = 0
);
clsNameSpace.def("rootDir", &NameSpace::getRootDir, "get the root directory of NameSpace");
clsNameSpace.def("backupOneToDirectory", &NameSpace::backupOneToDirectory,
"backup one MMKV instance from the root dir of NameSpace to dstDir",
py::arg("mmapID"), py::arg("dstDir"));
clsNameSpace.def("restoreOneFromDirectory", &NameSpace::restoreOneFromDirectory,
"restore one MMKV instance from srcDir to dstDir to the root dir of NameSpace",
py::arg("mmapID"), py::arg("srcDir"));
clsNameSpace.def("backupAllToDirectory", &NameSpace::backupAllToDirectory,
"backup all MMKV instance from the root dir of NameSpace to dstDir", py::arg("dstDir"));
clsNameSpace.def("restoreAllFromDirectory", &NameSpace::restoreAllFromDirectory,
"restore all MMKV instance from srcDir to the root dir of NameSpace", py::arg("srcDir"));
clsNameSpace.def("removeStorage", &NameSpace::removeStorage);
clsNameSpace.def("isFileValid", &NameSpace::isFileValid);
clsNameSpace.def("checkExist", &NameSpace::checkExist);
py::class_<MMKV, unique_ptr<MMKV, py::nodelete>> clsMMKV(m, "MMKV");
// TODO: not working
// clsMMKV.def(py::init(&MMKV::mmkvWithID),
// py::arg("mmapID"),
// py::arg("mode") = MMKV_SINGLE_PROCESS,
// py::arg("cryptKey") = (string*) nullptr,
// py::arg("rootDir") = (string*) nullptr);
clsMMKV.def(py::init([](const string &mmapID, MMKVMode mode, const string &cryptKey, const MMKVPath_t &rootDir,
const size_t expectedCapacity, bool aes256, std::optional<bool> enableKeyExpire,
uint32_t expiredInSeconds, bool enableCompareBeforeSet,std::optional<MMKVRecoverStrategic> recover,
uint32_t itemSizeLimit) {
auto config = pyArgsToConfig(mode, cryptKey, rootDir, expectedCapacity, aes256,
enableKeyExpire, expiredInSeconds, enableCompareBeforeSet, recover, itemSizeLimit);
return MMKV::mmkvWithID(mmapID, config);
}),
"Parameters:\n"
" mmapID: all instances of the same mmapID share the same data and file storage\n"
" mode: pass MMKVMode.MultiProcess for a multi-process MMKV\n"
" cryptKey: pass a non-empty string for an encrypted MMKV, 32 bytes at most\n"
" rootDir: custom root directory\n"
" expectedCapacity: the file size you expected when opening or creating file\n"
" aes256: use AES 256 key length\n"
" enableKeyExpire: enable auto key expiration\n"
" expiredInSeconds: expiration in seconds\n"
" enableCompareBeforeSet: enable compare before set, if new value is the same, dont update/insert\n"
" recover: recover strategy on file corruption\n"
" itemSizeLimit: size limit for a key-value pair\n",
py::arg("mmapID"), py::arg("mode") = MMKV_SINGLE_PROCESS,
py::arg("cryptKey") = string(), py::arg("rootDir") = string(),
py::arg("expectedCapacity") = 0, py::arg("aes256") = false,
py::arg("enableKeyExpire") = std::nullopt, py::arg("expiredInSeconds") = 0,
py::arg("enableCompareBeforeSet") = false,
py::arg("recover") = std::nullopt,
py::arg("itemSizeLimit") = 0);
clsMMKV.def("__eq__", [](MMKV &kv, const MMKV &other) { return kv.mmapID() == other.mmapID(); });
clsMMKV.def_static(
"initializeMMKV",
[](const MMKVPath_t &rootDir, MMKVLogLevel logLevel, decltype(g_logHandler) logHandler) {
if (logHandler) {
g_logHandler = std::move(logHandler);
MMKV::initializeMMKV(rootDir, logLevel, MyLogHandler);
} else {
MMKV::initializeMMKV(rootDir, logLevel, nullptr);
}
},
"must call this before getting any MMKV instance", py::arg("rootDir"), py::arg("logLevel") = MMKVLogNone,
py::arg("log_handler") = nullptr);
clsMMKV.def_static(
"defaultMMKV",
[](MMKVMode mode, const string &cryptKey, bool aes256, size_t expectedCapacity,
std::optional<bool> enableKeyExpire, uint32_t expiredInSeconds, bool enableCompareBeforeSet,
std::optional<MMKVRecoverStrategic> recover, uint32_t itemSizeLimit) {
auto config = pyArgsToConfig(mode, cryptKey, string(), expectedCapacity, aes256,
enableKeyExpire, expiredInSeconds, enableCompareBeforeSet, recover, itemSizeLimit);
return MMKV::defaultMMKV(config);
},
"a generic purpose instance\n"
"Parameters:\n"
" mode: pass MMKVMode.MultiProcess for a multi-process MMKV\n"
" cryptKey: pass a non-empty string for an encrypted MMKV, 32 bytes at most\n"
" aes256: use AES 256 key length\n"
" expectedCapacity: the file size you expected when opening or creating file\n"
" enableKeyExpire: enable auto key expiration\n"
" expiredInSeconds: expiration in seconds\n"
" enableCompareBeforeSet: enable compare before set, if new value is the same, dont update/insert\n"
" recover: recover strategy on file corruption\n"
" itemSizeLimit: size limit for a key-value pair\n",
py::arg("mode") = MMKV_SINGLE_PROCESS, py::arg("cryptKey") = string(),
py::arg("aes256") = false, py::arg("expectedCapacity") = 0,
py::arg("enableKeyExpire") = std::nullopt, py::arg("expiredInSeconds") = 0,
py::arg("enableCompareBeforeSet") = false,
py::arg("recover") = std::nullopt,
py::arg("itemSizeLimit") = 0);
clsMMKV.def_static("nameSpace", &MMKV::nameSpace, "get a namespace with custom root dir");
clsMMKV.def_static("defaultNameSpace", &MMKV::defaultNameSpace, "identical with the original MMKV with the global root dir");
clsMMKV.def("mmapID", &MMKV::mmapID);
clsMMKV.def("isInterProcess", &MMKV::isMultiProcess);
clsMMKV.def("cryptKey", &MMKV::cryptKey);
clsMMKV.def("reKey", &MMKV::reKey,
"transform plain text into encrypted text, or vice versa with an empty cryptKey\n"
"Parameters:\n"
" newCryptKey: 32 bytes at most\n"
" aes256: use AES 256 key length",
py::arg("newCryptKey"), py::arg("aes256") = false);
clsMMKV.def("checkReSetCryptKey", &MMKV::checkReSetCryptKey,
"just reset cryptKey (will not encrypt or decrypt anything),\n"
"usually you should call this method after other process reKey() a multi-process mmkv",
py::arg("newCryptKey"), py::arg("aes256") = false);
// TODO: Doesn't work, why?
// clsMMKV.def("set", py::overload_cast<bool, const string&>(&MMKV::set), py::arg("value"), py::arg("key"));
clsMMKV.def("set", (bool (MMKV::*)(bool, string_view))(&MMKV::set), "encode a boolean value", py::arg("value"),
py::arg("key"));
clsMMKV.def("set", (bool (MMKV::*)(bool, string_view, uint32_t))(&MMKV::set),
"encode a boolean value with expiration", py::arg("value"), py::arg("key"), py::arg("expireDuration"));
clsMMKV.def("set", (bool (MMKV::*)(int32_t, string_view))(&MMKV::set), "encode an int32 value", py::arg("value"),
py::arg("key"));
clsMMKV.def("set", (bool (MMKV::*)(int32_t, string_view, uint32_t))(&MMKV::set),
"encode an int32 value with expiration", py::arg("value"), py::arg("key"), py::arg("expireDuration"));
clsMMKV.def("set", (bool (MMKV::*)(uint32_t, string_view))(&MMKV::set), "encode an unsigned int32 value",
py::arg("value"), py::arg("key"));
clsMMKV.def("set", (bool (MMKV::*)(uint32_t, string_view, uint32_t))(&MMKV::set),
"encode an unsigned int32 value with expiration", py::arg("value"), py::arg("key"),
py::arg("expireDuration"));
clsMMKV.def("set", (bool (MMKV::*)(int64_t, string_view))(&MMKV::set), "encode an int64 value", py::arg("value"),
py::arg("key"));
clsMMKV.def("set", (bool (MMKV::*)(int64_t, string_view, uint32_t))(&MMKV::set),
"encode an int64 value with expiration", py::arg("value"), py::arg("key"), py::arg("expireDuration"));
clsMMKV.def("set", (bool (MMKV::*)(uint64_t, string_view))(&MMKV::set), "encode an unsigned int64 value",
py::arg("value"), py::arg("key"));
clsMMKV.def("set", (bool (MMKV::*)(uint64_t, string_view, uint32_t))(&MMKV::set),
"encode an unsigned int64 value with expiration", py::arg("value"), py::arg("key"),
py::arg("expireDuration"));
//clsMMKV.def("set", (bool (MMKV::*)(float, string_view))(&MMKV::set), py::arg("value"), py::arg("key"));
clsMMKV.def("set", (bool (MMKV::*)(double, string_view))(&MMKV::set), "encode a float/double value",
py::arg("value"), py::arg("key"));
clsMMKV.def("set", (bool (MMKV::*)(double, string_view, uint32_t))(&MMKV::set),
"encode a float/double value with expiration", py::arg("value"), py::arg("key"),
py::arg("expireDuration"));
//clsMMKV.def("set", (bool (MMKV::*)(const char*, string_view))(&MMKV::set), py::arg("value"), py::arg("key"));
clsMMKV.def("set", (bool (MMKV::*)(const string &, string_view))(&MMKV::set),
"encode an UTF-8 String/bytes value", py::arg("value"), py::arg("key"));
clsMMKV.def("set", (bool (MMKV::*)(const string &, string_view, uint32_t))(&MMKV::set),
"encode an UTF-8 String/bytes value with expiration", py::arg("value"), py::arg("key"),
py::arg("expireDuration"));
#if PY_MAJOR_VERSION >= 3
clsMMKV.def(
"set", [](MMKV &kv, const py::bytes &value, const string &key) { return kv.set(pyBytes2MMBuffer(value), key); },
"encode a bytes value", py::arg("value"), py::arg("key"));
clsMMKV.def(
"set",
[](MMKV &kv, const py::bytes &value, const string &key, uint32_t expireDuration) {
return kv.set(pyBytes2MMBuffer(value), key, expireDuration);
},
"encode a bytes value with expiration", py::arg("value"), py::arg("key"), py::arg("expireDuration"));
#endif
clsMMKV.def("getBool", &MMKV::getBool, "decode a boolean value", py::arg("key"), py::arg("defaultValue") = false,
py::arg("hasValue") = nullptr);
clsMMKV.def("getInt", &MMKV::getInt32, "decode an int32 value", py::arg("key"), py::arg("defaultValue") = 0,
py::arg("hasValue") = nullptr);
clsMMKV.def("getUInt", &MMKV::getUInt32, "decode an unsigned int32 value", py::arg("key"),
py::arg("defaultValue") = 0, py::arg("hasValue") = nullptr);
clsMMKV.def("getLongInt", &MMKV::getInt64, "decode an int64 value", py::arg("key"), py::arg("defaultValue") = 0,
py::arg("hasValue") = nullptr);
clsMMKV.def("getLongUInt", &MMKV::getUInt64, "decode an unsigned int64 value", py::arg("key"),
py::arg("defaultValue") = 0, py::arg("hasValue") = nullptr);
//clsMMKV.def("getFloat", &MMKV::getFloat, py::arg("key"), py::arg("defaultValue") = 0);
clsMMKV.def("getFloat", &MMKV::getDouble, "decode a float/double value", py::arg("key"),
py::arg("defaultValue") = 0, py::arg("hasValue") = nullptr);
clsMMKV.def(
"getString",
[](MMKV &kv, const string &key, const string &defaultValue) {
string result;
if (kv.getString(key, result)) {
return result;
}
return defaultValue;
},
"decode an UTF-8 String/bytes value", py::arg("key"), py::arg("defaultValue") = string());
clsMMKV.def(
"getBytes",
[](MMKV &kv, const string &key, const py::bytes &defaultValue) {
MMBuffer result = kv.getBytes(key);
if (result.length() > 0) {
return py::bytes((const char *) result.getPtr(), result.length());
}
return defaultValue;
},
"decode a bytes value", py::arg("key"), py::arg("defaultValue") = py::bytes());
clsMMKV.def("__contains__", &MMKV::containsKey, py::arg("key"));
clsMMKV.def("keys", &MMKV::allKeys, py::arg("filterExpire") = false);
clsMMKV.def("count", &MMKV::count, py::arg("filterExpire") = false);
clsMMKV.def("totalSize", &MMKV::totalSize);
clsMMKV.def("actualSize", &MMKV::actualSize);
clsMMKV.def("remove", &MMKV::removeValueForKey, py::arg("key"));
clsMMKV.def("remove", &MMKV::removeValuesForKeys, py::arg("keys"));
clsMMKV.def("clearAll", &MMKV::clearAll, py::arg("keepSpace") = false, "remove all key-values");
clsMMKV.def("trim", &MMKV::trim, "call this method after lots of removing if you care about disk usage");
clsMMKV.def("importFrom", &MMKV::importFrom, "import all key-value items from others");
clsMMKV.def("clearMemoryCache", &MMKV::clearMemoryCache, "call this method if you are facing memory-warning",
py::arg("keepSpace") = false);
clsMMKV.def("sync", &MMKV::sync, py::arg("flag") = MMKV_SYNC,
"this call is not necessary unless you worry about unexpected shutdown of the machine (running out of "
"battery, etc.)");
clsMMKV.def("enableAutoKeyExpire", &MMKV::enableAutoKeyExpire, py::arg("expireDurationInSecond"),
"turn on auto key expiration, passing 0 means never expire");
clsMMKV.def("disableAutoKeyExpire", &MMKV::disableAutoKeyExpire, "turn off auto key expiration");
clsMMKV.def("enableCompareBeforeSet", &MMKV::enableCompareBeforeSet, "turn on compare before set/update");
clsMMKV.def("disableCompareBeforeSet", &MMKV::disableCompareBeforeSet, "turn off compare before set/update");
clsMMKV.def("lock", &MMKV::lock, "get exclusive access, won't return until the lock is obtained");
clsMMKV.def("unlock", &MMKV::unlock);
clsMMKV.def("try_lock", &MMKV::try_lock, "try to get exclusive access");
clsMMKV.def("isMultiProcess", &MMKV::isMultiProcess, "check multi-process mode");
clsMMKV.def("isReadOnly", &MMKV::isReadOnly, "check read-only mode");
clsMMKV.def("close", &MMKV::close, "close the instance");
clsMMKV.def_static("rootDir", &MMKV::getRootDir, "get the root directory of MMKV");
// log callback handler
clsMMKV.def_static(
"registerLogHandler",
[](decltype(g_logHandler) callback) {
g_logHandler = std::move(callback);
MMKV::registerLogHandler(MyLogHandler);
},
"call this method to redirect MMKV's log,\n"
"must call MMKV.unRegisterLogHandler() or MMKV.onExit() before exit\n"
"Parameters:\n"
" log_handler: (logLevel: mmkv.MMKVLogLevel, file: str, line: int, function: str, message: str) -> None",
py::arg("log_handler"));
clsMMKV.def_static(
"unRegisterLogHandler",
[] {
g_logHandler = nullptr;
MMKV::unRegisterLogHandler();
},
"If you have registered a log handler, you must call this method or MMKV.onExit() before exit. "
"Otherwise your app/script won't exit properly.");
// error callback handler
clsMMKV.def_static(
"registerErrorHandler",
[](decltype(g_errorHandler) callback) {
g_errorHandler = std::move(callback);
MMKV::registerErrorHandler(MyErrorHandler);
},
"call this method to handle MMKV failure,\n"
"must call MMKV.unRegisterErrorHandler() or MMKV.onExit() before exit\n"
"Parameters:\n"
" error_handler: (mmapID: str, errorType: mmkv.MMKVErrorType) -> mmkv.MMKVRecoverStrategic",
py::arg("error_handler"));
clsMMKV.def_static(
"unRegisterErrorHandler",
[] {
g_errorHandler = nullptr;
MMKV::unRegisterErrorHandler();
},
"If you have registered an error handler, you must call this method or MMKV.onExit() before exit. "
"Otherwise your app/script won't exit properly.");
// content change callback handler
clsMMKV.def("checkContentChanged", &MMKV::checkContentChanged, "check if content been changed by other process");
clsMMKV.def_static(
"registerContentChangeHandler",
[](decltype(g_contentHandler) callback) {
g_contentHandler = std::move(callback);
MMKV::registerContentChangeHandler(MyContentChangeHandler);
},
"register a content change handler,\n"
"get notified when an MMKV instance has been changed by other process (not guarantee real-time notification),\n"
"must call MMKV.unRegisterContentChangeHandler() or MMKV.onExit() before exit\n"
"Parameters:\n"
" content_change_handler: (mmapID: str) -> None",
py::arg("content_change_handler"));
clsMMKV.def_static(
"unRegisterContentChangeHandler",
[] {
g_contentHandler = nullptr;
MMKV::unRegisterContentChangeHandler();
},
"If you have registered a content change handler, you must call this method or MMKV.onExit() before exit. "
"Otherwise your app/script won't exit properly.");
clsMMKV.def_static(
"onExit",
[] {
MMKV::onExit();
g_logHandler = nullptr;
g_errorHandler = nullptr;
g_contentHandler = nullptr;
},
"call this method before exit, especially if you have registered any callback handlers");
clsMMKV.def_static(
"backupOneToDirectory",
[](const string &mmapID, const MMKVPath_t &dstDir, const MMKVPath_t &srcDir) {
MMKVPath_t *srcDirPtr = (!srcDir.empty()) ? (MMKVPath_t *) &srcDir : nullptr;
return MMKV::backupOneToDirectory(mmapID, dstDir, srcDirPtr);
},
"backup one MMKV instance from srcDir (default to the root dir of MMKV) to dstDir", py::arg("mmapID"),
py::arg("dstDir"), py::arg("srcDir") = MMKVPath_t());
clsMMKV.def_static(
"restoreOneFromDirectory",
[](const string &mmapID, const MMKVPath_t &srcDir, const MMKVPath_t &dstDir) {
MMKVPath_t *dstDirPtr = (!dstDir.empty()) ? (MMKVPath_t *) &dstDir : nullptr;
return MMKV::restoreOneFromDirectory(mmapID, srcDir, dstDirPtr);
},
"restore one MMKV instance from srcDir to dstDir (default to the root dir of MMKV)", py::arg("mmapID"),
py::arg("srcDir"), py::arg("dstDir") = MMKVPath_t());
clsMMKV.def_static(
"backupAllToDirectory",
[](const MMKVPath_t &dstDir, const MMKVPath_t &srcDir) {
MMKVPath_t *srcDirPtr = (!srcDir.empty()) ? (MMKVPath_t *) &srcDir : nullptr;
return MMKV::backupAllToDirectory(dstDir, srcDirPtr);
},
"backup all MMKV instance from srcDir (default to the root dir of MMKV) to dstDir", py::arg("dstDir"),
py::arg("srcDir") = MMKVPath_t());
clsMMKV.def_static(
"restoreAllFromDirectory",
[](const MMKVPath_t &srcDir, const MMKVPath_t &dstDir) {
MMKVPath_t *dstDirPtr = (!dstDir.empty()) ? (MMKVPath_t *) &dstDir : nullptr;
return MMKV::restoreAllFromDirectory(srcDir, dstDirPtr);
},
"restore all MMKV instance from srcDir to dstDir (default to the root dir of MMKV)", py::arg("srcDir"),
py::arg("dstDir") = MMKVPath_t());
clsMMKV.def_static(
"removeStorage",
[](const string &mmapID, const MMKVPath_t &rootDir) {
MMKVPath_t *rootDirPtr = (!rootDir.empty()) ? (MMKVPath_t *) &rootDir : nullptr;
return MMKV::removeStorage(mmapID, rootDirPtr);
},
"remove the storage of the MMKV, including the data file & meta file (.crc)", py::arg("mmapID"),
py::arg("rootDir") = MMKVPath_t());
clsMMKV.def_static("isFileValid",
[](const string &mmapID, const MMKVPath_t &rootDir) {
MMKVPath_t *rootDirPtr = (!rootDir.empty()) ? (MMKVPath_t *) &rootDir : nullptr;
return MMKV::isFileValid(mmapID, rootDirPtr);
},
"detect if the MMKV file is valid or not", py::arg("mmapID"),
py::arg("rootDir") = MMKVPath_t());
clsMMKV.def_static("checkExist",
[](const string &mmapID, const MMKVPath_t &rootDir) {
MMKVPath_t *rootDirPtr = (!rootDir.empty()) ? (MMKVPath_t *) &rootDir : nullptr;
return MMKV::checkExist(mmapID, rootDirPtr);
},
"check if the MMKV file is exist or not", py::arg("mmapID"),
py::arg("rootDir") = MMKVPath_t());
}