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native-bridge.cpp
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native-bridge.cpp
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/*
* Tencent is pleased to support the open source community by making
* MMKV available.
*
* Copyright (C) 2018 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 "MMKVPredef.h"
#ifdef MMKV_ANDROID
# include "MMBuffer.h"
# include "MMKV.h"
# include "MMKVLog.h"
# include "MemoryFile.h"
# include <cstdint>
# include <jni.h>
# include <string>
# include <android/api-level.h>
using namespace std;
using namespace mmkv;
static jclass g_cls = nullptr;
static jfieldID g_fileID = nullptr;
static jmethodID g_callbackOnCRCFailID = nullptr;
static jmethodID g_callbackOnFileLengthErrorID = nullptr;
static jmethodID g_mmkvLogID = nullptr;
static jmethodID g_callbackOnContentChange = nullptr;
static JavaVM *g_currentJVM = nullptr;
static int registerNativeMethods(JNIEnv *env, jclass cls);
extern "C" void internalLogWithLevel(MMKVLogLevel level, const char *filename, const char *func, int line, const char *format, ...);
extern MMKVLogLevel g_currentLogLevel;
namespace mmkv {
static void mmkvLog(MMKVLogLevel level, const char *file, int line, const char *function, const std::string &message);
}
#define InternalLogError(format, ...) \
internalLogWithLevel(MMKV_NAMESPACE_PREFIX::MMKVLogError, __MMKV_FILE_NAME__, __func__, __LINE__, format, ##__VA_ARGS__)
#define InternalLogInfo(format, ...) \
internalLogWithLevel(MMKV_NAMESPACE_PREFIX::MMKVLogInfo, __MMKV_FILE_NAME__, __func__, __LINE__, format, ##__VA_ARGS__)
extern "C" JNIEXPORT JNICALL jint JNI_OnLoad(JavaVM *vm, void *reserved) {
g_currentJVM = vm;
JNIEnv *env;
if (vm->GetEnv(reinterpret_cast<void **>(&env), JNI_VERSION_1_6) != JNI_OK) {
return -1;
}
if (g_cls) {
env->DeleteGlobalRef(g_cls);
}
static const char *clsName = "com/tencent/mmkv/MMKV";
jclass instance = env->FindClass(clsName);
if (!instance) {
MMKVError("fail to locate class: %s", clsName);
return -2;
}
g_cls = reinterpret_cast<jclass>(env->NewGlobalRef(instance));
if (!g_cls) {
MMKVError("fail to create global reference for %s", clsName);
return -3;
}
g_mmkvLogID =
env->GetStaticMethodID(g_cls, "mmkvLogImp", "(ILjava/lang/String;ILjava/lang/String;Ljava/lang/String;)V");
if (!g_mmkvLogID) {
MMKVError("fail to get method id for mmkvLogImp");
}
// every code from now on can use InternalLogXXX()
int ret = registerNativeMethods(env, g_cls);
if (ret != 0) {
InternalLogError("fail to register native methods for class %s, ret = %d", clsName, ret);
return -4;
}
g_fileID = env->GetFieldID(g_cls, "nativeHandle", "J");
if (!g_fileID) {
InternalLogError("fail to locate fileID");
return -5;
}
g_callbackOnCRCFailID = env->GetStaticMethodID(g_cls, "onMMKVCRCCheckFail", "(Ljava/lang/String;)I");
if (!g_callbackOnCRCFailID) {
InternalLogError("fail to get method id for onMMKVCRCCheckFail");
}
g_callbackOnFileLengthErrorID = env->GetStaticMethodID(g_cls, "onMMKVFileLengthError", "(Ljava/lang/String;)I");
if (!g_callbackOnFileLengthErrorID) {
InternalLogError("fail to get method id for onMMKVFileLengthError");
}
g_callbackOnContentChange =
env->GetStaticMethodID(g_cls, "onContentChangedByOuterProcess", "(Ljava/lang/String;)V");
if (!g_callbackOnContentChange) {
InternalLogError("fail to get method id for onContentChangedByOuterProcess()");
}
// Note: If you use NDK r23 or older, you can get API level by accessing android.os.Build.VERSION.SDK_INT
g_android_api = android_get_device_api_level();
#ifdef MMKV_STL_SHARED
InternalLogInfo("current API level = %d, libc++_shared=%d", g_android_api, MMKV_STL_SHARED);
#else
InternalLogInfo("current API level = %d, libc++_shared=?", g_android_api);
#endif
return JNI_VERSION_1_6;
}
//#define MMKV_JNI extern "C" JNIEXPORT JNICALL
# define MMKV_JNI static
namespace mmkv {
static string jstring2string(JNIEnv *env, jstring str);
MMKV_JNI void jniInitialize(JNIEnv *env, jobject obj, jstring rootDir, jstring cacheDir, jint logLevel) {
if (!rootDir) {
return;
}
const char *kstr = env->GetStringUTFChars(rootDir, nullptr);
if (kstr) {
MMKV::initializeMMKV(kstr, (MMKVLogLevel) logLevel);
env->ReleaseStringUTFChars(rootDir, kstr);
g_android_tmpDir = jstring2string(env, cacheDir);
}
}
MMKV_JNI void jniInitialize_2(JNIEnv *env, jobject obj, jstring rootDir, jstring cacheDir, jint logLevel, jboolean logReDirecting) {
if (!rootDir) {
return;
}
const char *kstr = env->GetStringUTFChars(rootDir, nullptr);
if (kstr) {
auto logHandler = logReDirecting ? mmkvLog : nullptr;
MMKV::initializeMMKV(kstr, (MMKVLogLevel) logLevel, logHandler);
env->ReleaseStringUTFChars(rootDir, kstr);
g_android_tmpDir = jstring2string(env, cacheDir);
}
}
MMKV_JNI void onExit(JNIEnv *env, jobject obj) {
MMKV::onExit();
}
static MMKV *getMMKV(JNIEnv *env, jobject obj) {
jlong handle = env->GetLongField(obj, g_fileID);
return reinterpret_cast<MMKV *>(handle);
}
static string jstring2string(JNIEnv *env, jstring str) {
if (str) {
const char *kstr = env->GetStringUTFChars(str, nullptr);
if (kstr) {
string result(kstr);
env->ReleaseStringUTFChars(str, kstr);
return result;
}
}
return "";
}
static jstring string2jstring(JNIEnv *env, const string &str) {
return env->NewStringUTF(str.c_str());
}
static vector<string> jarray2vector(JNIEnv *env, jobjectArray array) {
vector<string> keys;
if (array) {
jsize size = env->GetArrayLength(array);
keys.reserve(size);
for (jsize i = 0; i < size; i++) {
jstring str = (jstring) env->GetObjectArrayElement(array, i);
if (str) {
keys.push_back(jstring2string(env, str));
env->DeleteLocalRef(str);
}
}
}
return keys;
}
static jobjectArray vector2jarray(JNIEnv *env, const vector<string> &arr) {
jobjectArray result = env->NewObjectArray(arr.size(), env->FindClass("java/lang/String"), nullptr);
if (result) {
for (size_t index = 0; index < arr.size(); index++) {
jstring value = string2jstring(env, arr[index]);
env->SetObjectArrayElement(result, index, value);
env->DeleteLocalRef(value);
}
}
return result;
}
static JNIEnv *getCurrentEnv() {
if (g_currentJVM) {
JNIEnv *currentEnv = nullptr;
auto ret = g_currentJVM->GetEnv(reinterpret_cast<void **>(¤tEnv), JNI_VERSION_1_6);
if (ret == JNI_OK) {
return currentEnv;
} else {
MMKVError("fail to get current JNIEnv: %d", ret);
}
}
return nullptr;
}
MMKVRecoverStrategic onMMKVError(const std::string &mmapID, MMKVErrorType errorType) {
jmethodID methodID = nullptr;
if (errorType == MMKVCRCCheckFail) {
methodID = g_callbackOnCRCFailID;
} else if (errorType == MMKVFileLength) {
methodID = g_callbackOnFileLengthErrorID;
}
auto currentEnv = getCurrentEnv();
if (currentEnv && methodID) {
jstring str = string2jstring(currentEnv, mmapID);
auto strategic = currentEnv->CallStaticIntMethod(g_cls, methodID, str);
return static_cast<MMKVRecoverStrategic>(strategic);
}
return OnErrorDiscard;
}
extern "C" void internalLogWithLevel(MMKVLogLevel level, const char *filename, const char *func, int line, const char *format, ...) {
if (level >= g_currentLogLevel) {
std::string message;
char buffer[16];
va_list args;
va_start(args, format);
auto length = std::vsnprintf(buffer, sizeof(buffer), format, args);
va_end(args);
if (length < 0) { // something wrong
message = {};
} else if (length < sizeof(buffer)) {
message = std::string(buffer, static_cast<unsigned long>(length));
} else {
message.resize(static_cast<unsigned long>(length), '\0');
va_start(args, format);
std::vsnprintf(const_cast<char *>(message.data()), static_cast<size_t>(length) + 1, format, args);
va_end(args);
}
if (g_cls && g_mmkvLogID) {
mmkvLog(level, filename, line, func, message);
} else {
_MMKVLogWithLevel(level, filename, func, line, message.c_str());
}
}
}
static void mmkvLog(MMKVLogLevel level, const char *file, int line, const char *function, const std::string &message) {
auto currentEnv = getCurrentEnv();
if (currentEnv && g_mmkvLogID) {
jstring oFile = string2jstring(currentEnv, string(file));
jstring oFunction = string2jstring(currentEnv, string(function));
jstring oMessage = string2jstring(currentEnv, message);
int readLevel = level;
currentEnv->CallStaticVoidMethod(g_cls, g_mmkvLogID, readLevel, oFile, line, oFunction, oMessage);
}
}
static void onContentChangedByOuterProcess(const std::string &mmapID) {
auto currentEnv = getCurrentEnv();
if (currentEnv && g_callbackOnContentChange) {
jstring str = string2jstring(currentEnv, mmapID);
currentEnv->CallStaticVoidMethod(g_cls, g_callbackOnContentChange, str);
}
}
MMKV_JNI jlong getMMKVWithID(JNIEnv *env, jobject, jstring mmapID, jint mode, jstring cryptKey, jstring rootPath,
jlong expectedCapacity) {
MMKV *kv = nullptr;
if (!mmapID) {
return (jlong) kv;
}
string str = jstring2string(env, mmapID);
bool done = false;
if (cryptKey) {
string crypt = jstring2string(env, cryptKey);
if (crypt.length() > 0) {
if (rootPath) {
string path = jstring2string(env, rootPath);
kv = MMKV::mmkvWithID(str, DEFAULT_MMAP_SIZE, (MMKVMode) mode, &crypt, &path, expectedCapacity);
} else {
kv = MMKV::mmkvWithID(str, DEFAULT_MMAP_SIZE, (MMKVMode) mode, &crypt, nullptr, expectedCapacity);
}
done = true;
}
}
if (!done) {
if (rootPath) {
string path = jstring2string(env, rootPath);
kv = MMKV::mmkvWithID(str, DEFAULT_MMAP_SIZE, (MMKVMode) mode, nullptr, &path, expectedCapacity);
} else {
kv = MMKV::mmkvWithID(str, DEFAULT_MMAP_SIZE, (MMKVMode) mode, nullptr, nullptr, expectedCapacity);
}
}
return (jlong) kv;
}
MMKV_JNI jlong getMMKVWithIDAndSize(JNIEnv *env, jobject obj, jstring mmapID, jint size, jint mode, jstring cryptKey) {
MMKV *kv = nullptr;
if (!mmapID || size < 0) {
return (jlong) kv;
}
string str = jstring2string(env, mmapID);
if (cryptKey) {
string crypt = jstring2string(env, cryptKey);
if (crypt.length() > 0) {
kv = MMKV::mmkvWithID(str, size, (MMKVMode) mode, &crypt);
}
}
if (!kv) {
kv = MMKV::mmkvWithID(str, size, (MMKVMode) mode, nullptr);
}
return (jlong) kv;
}
MMKV_JNI jlong getDefaultMMKV(JNIEnv *env, jobject obj, jint mode, jstring cryptKey) {
MMKV *kv = nullptr;
if (cryptKey) {
string crypt = jstring2string(env, cryptKey);
if (crypt.length() > 0) {
kv = MMKV::defaultMMKV((MMKVMode) mode, &crypt);
}
}
if (!kv) {
kv = MMKV::defaultMMKV((MMKVMode) mode, nullptr);
}
return (jlong) kv;
}
MMKV_JNI jlong getMMKVWithAshmemFD(JNIEnv *env, jobject obj, jstring mmapID, jint fd, jint metaFD, jstring cryptKey) {
MMKV *kv = nullptr;
if (!mmapID || fd < 0 || metaFD < 0) {
return (jlong) kv;
}
string id = jstring2string(env, mmapID);
if (cryptKey) {
string crypt = jstring2string(env, cryptKey);
if (crypt.length() > 0) {
kv = MMKV::mmkvWithAshmemFD(id, fd, metaFD, &crypt);
}
}
if (!kv) {
kv = MMKV::mmkvWithAshmemFD(id, fd, metaFD, nullptr);
}
return (jlong) kv;
}
MMKV_JNI jstring mmapID(JNIEnv *env, jobject instance) {
MMKV *kv = getMMKV(env, instance);
if (kv) {
return string2jstring(env, kv->mmapID());
}
return nullptr;
}
MMKV_JNI jint ashmemFD(JNIEnv *env, jobject instance) {
MMKV *kv = getMMKV(env, instance);
if (kv) {
return kv->ashmemFD();
}
return -1;
}
MMKV_JNI jint ashmemMetaFD(JNIEnv *env, jobject instance) {
MMKV *kv = getMMKV(env, instance);
if (kv) {
return kv->ashmemMetaFD();
}
return -1;
}
MMKV_JNI jboolean checkProcessMode(JNIEnv *env, jobject, jlong handle) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv) {
return kv->checkProcessMode();
}
return false;
}
MMKV_JNI jboolean encodeBool(JNIEnv *env, jobject, jlong handle, jstring oKey, jboolean value) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return (jboolean) kv->set((bool) value, key);
}
return (jboolean) false;
}
MMKV_JNI jboolean encodeBool_2(JNIEnv *env, jobject, jlong handle, jstring oKey, jboolean value, jint expiration) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return (jboolean) kv->set((bool) value, key, (uint32_t) expiration);
}
return (jboolean) false;
}
MMKV_JNI jboolean decodeBool(JNIEnv *env, jobject, jlong handle, jstring oKey, jboolean defaultValue) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return (jboolean) kv->getBool(key, defaultValue);
}
return defaultValue;
}
MMKV_JNI jboolean encodeInt(JNIEnv *env, jobject obj, jlong handle, jstring oKey, jint value) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return (jboolean) kv->set((int32_t) value, key);
}
return (jboolean) false;
}
MMKV_JNI jboolean encodeInt_2(JNIEnv *env, jobject obj, jlong handle, jstring oKey, jint value, jint expiration) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return (jboolean) kv->set((int32_t) value, key, (uint32_t) expiration);
}
return (jboolean) false;
}
MMKV_JNI jint decodeInt(JNIEnv *env, jobject obj, jlong handle, jstring oKey, jint defaultValue) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return (jint) kv->getInt32(key, defaultValue);
}
return defaultValue;
}
MMKV_JNI jboolean encodeLong(JNIEnv *env, jobject obj, jlong handle, jstring oKey, jlong value) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return (jboolean) kv->set((int64_t) value, key);
}
return (jboolean) false;
}
MMKV_JNI jboolean encodeLong_2(JNIEnv *env, jobject obj, jlong handle, jstring oKey, jlong value, jint expiration) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return (jboolean) kv->set((int64_t) value, key, (uint32_t) expiration);
}
return (jboolean) false;
}
MMKV_JNI jlong decodeLong(JNIEnv *env, jobject obj, jlong handle, jstring oKey, jlong defaultValue) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return (jlong) kv->getInt64(key, defaultValue);
}
return defaultValue;
}
MMKV_JNI jboolean encodeFloat(JNIEnv *env, jobject obj, jlong handle, jstring oKey, jfloat value) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return (jboolean) kv->set((float) value, key);
}
return (jboolean) false;
}
MMKV_JNI jboolean encodeFloat_2(JNIEnv *env, jobject obj, jlong handle, jstring oKey, jfloat value, jint expiration) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return (jboolean) kv->set((float) value, key, (uint32_t) expiration);
}
return (jboolean) false;
}
MMKV_JNI jfloat decodeFloat(JNIEnv *env, jobject, jlong handle, jstring oKey, jfloat defaultValue) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return (jfloat) kv->getFloat(key, defaultValue);
}
return defaultValue;
}
MMKV_JNI jboolean encodeDouble(JNIEnv *env, jobject obj, jlong handle, jstring oKey, jdouble value) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return (jboolean) kv->set((double) value, key);
}
return (jboolean) false;
}
MMKV_JNI jboolean encodeDouble_2(JNIEnv *env, jobject obj, jlong handle, jstring oKey, jdouble value, jint expiration) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return (jboolean) kv->set((double) value, key, (uint32_t) expiration);
}
return (jboolean) false;
}
MMKV_JNI jdouble decodeDouble(JNIEnv *env, jobject, jlong handle, jstring oKey, jdouble defaultValue) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return (jdouble) kv->getDouble(key, defaultValue);
}
return defaultValue;
}
MMKV_JNI jboolean encodeString(JNIEnv *env, jobject, jlong handle, jstring oKey, jstring oValue) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
if (oValue) {
string value = jstring2string(env, oValue);
return (jboolean) kv->set(value, key);
} else {
kv->removeValueForKey(key);
return (jboolean) true;
}
}
return (jboolean) false;
}
MMKV_JNI jboolean encodeString_2(JNIEnv *env, jobject, jlong handle, jstring oKey, jstring oValue, jint expiration) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
if (oValue) {
string value = jstring2string(env, oValue);
return (jboolean) kv->set(value, key, (uint32_t) expiration);
} else {
kv->removeValueForKey(key);
return (jboolean) true;
}
}
return (jboolean) false;
}
MMKV_JNI jstring decodeString(JNIEnv *env, jobject obj, jlong handle, jstring oKey, jstring oDefaultValue) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
string value;
bool hasValue = kv->getString(key, value);
if (hasValue) {
return string2jstring(env, value);
}
}
return oDefaultValue;
}
MMKV_JNI jboolean encodeBytes(JNIEnv *env, jobject, jlong handle, jstring oKey, jbyteArray oValue) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
if (oValue) {
MMBuffer value(0);
{
jsize len = env->GetArrayLength(oValue);
void *bufferPtr = env->GetPrimitiveArrayCritical(oValue, nullptr);
if (bufferPtr) {
value = MMBuffer(bufferPtr, len);
env->ReleasePrimitiveArrayCritical(oValue, bufferPtr, JNI_ABORT);
} else {
MMKVError("fail to get array: %s=%p", key.c_str(), oValue);
}
}
return (jboolean) kv->set(value, key);
} else {
kv->removeValueForKey(key);
return (jboolean) true;
}
}
return (jboolean) false;
}
MMKV_JNI jboolean encodeBytes_2(JNIEnv *env, jobject, jlong handle, jstring oKey, jbyteArray oValue, jint expiration) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
if (oValue) {
MMBuffer value(0);
{
jsize len = env->GetArrayLength(oValue);
void *bufferPtr = env->GetPrimitiveArrayCritical(oValue, nullptr);
if (bufferPtr) {
value = MMBuffer(bufferPtr, len);
env->ReleasePrimitiveArrayCritical(oValue, bufferPtr, JNI_ABORT);
} else {
MMKVError("fail to get array: %s=%p", key.c_str(), oValue);
}
}
return (jboolean) kv->set(value, key, (uint32_t) expiration);
} else {
kv->removeValueForKey(key);
return (jboolean) true;
}
}
return (jboolean) false;
}
MMKV_JNI jbyteArray decodeBytes(JNIEnv *env, jobject obj, jlong handle, jstring oKey) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
mmkv::MMBuffer value;
auto hasValue = kv->getBytes(key, value);
if (hasValue) {
jbyteArray result = env->NewByteArray(value.length());
env->SetByteArrayRegion(result, 0, value.length(), (const jbyte *) value.getPtr());
return result;
}
}
return nullptr;
}
MMKV_JNI jobjectArray allKeys(JNIEnv *env, jobject instance, jlong handle, jboolean filterExpire) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv) {
vector<string> keys = kv->allKeys((bool) filterExpire);
return vector2jarray(env, keys);
}
return nullptr;
}
MMKV_JNI jboolean containsKey(JNIEnv *env, jobject instance, jlong handle, jstring oKey) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return (jboolean) kv->containsKey(key);
}
return (jboolean) false;
}
MMKV_JNI jlong count(JNIEnv *env, jobject instance, jlong handle, jboolean filterExpire) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv) {
jlong size = kv->count((bool) filterExpire);
return size;
}
return 0;
}
MMKV_JNI jlong totalSize(JNIEnv *env, jobject instance, jlong handle) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv) {
jlong size = kv->totalSize();
return size;
}
return 0;
}
MMKV_JNI jlong actualSize(JNIEnv *env, jobject instance, jlong handle) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv) {
jlong size = kv->actualSize();
return size;
}
return 0;
}
MMKV_JNI void removeValueForKey(JNIEnv *env, jobject instance, jlong handle, jstring oKey) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
kv->removeValueForKey(key);
}
}
MMKV_JNI void removeValuesForKeys(JNIEnv *env, jobject instance, jobjectArray arrKeys) {
MMKV *kv = getMMKV(env, instance);
if (kv && arrKeys) {
vector<string> keys = jarray2vector(env, arrKeys);
if (!keys.empty()) {
kv->removeValuesForKeys(keys);
}
}
}
MMKV_JNI void clearAll(JNIEnv *env, jobject instance) {
MMKV *kv = getMMKV(env, instance);
if (kv) {
kv->clearAll();
}
}
MMKV_JNI void sync(JNIEnv *env, jobject instance, jboolean sync) {
MMKV *kv = getMMKV(env, instance);
if (kv) {
kv->sync((SyncFlag) sync);
}
}
MMKV_JNI jboolean isFileValid(JNIEnv *env, jclass type, jstring oMmapID, jstring rootPath) {
if (oMmapID) {
string mmapID = jstring2string(env, oMmapID);
if (!rootPath) {
return (jboolean) MMKV::isFileValid(mmapID, nullptr);
} else {
auto root = jstring2string(env, rootPath);
return (jboolean) MMKV::isFileValid(mmapID, &root);
}
}
return (jboolean) false;
}
MMKV_JNI jboolean removeStorage(JNIEnv *env, jclass type, jstring oMmapID, jstring rootPath) {
if (oMmapID) {
string mmapID = jstring2string(env, oMmapID);
if (!rootPath) {
return (jboolean) MMKV::removeStorage(mmapID, nullptr);
} else {
auto root = jstring2string(env, rootPath);
return (jboolean) MMKV::removeStorage(mmapID, &root);
}
}
return (jboolean) false;
}
MMKV_JNI jboolean encodeSet(JNIEnv *env, jobject, jlong handle, jstring oKey, jobjectArray arrStr) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
if (arrStr) {
vector<string> value = jarray2vector(env, arrStr);
return (jboolean) kv->set(value, key);
} else {
kv->removeValueForKey(key);
return (jboolean) true;
}
}
return (jboolean) false;
}
MMKV_JNI jboolean encodeSet_2(JNIEnv *env, jobject, jlong handle, jstring oKey, jobjectArray arrStr, jint expiration) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
if (arrStr) {
vector<string> value = jarray2vector(env, arrStr);
return (jboolean) kv->set(value, key, (uint32_t) expiration);
} else {
kv->removeValueForKey(key);
return (jboolean) true;
}
}
return (jboolean) false;
}
MMKV_JNI jobjectArray decodeStringSet(JNIEnv *env, jobject, jlong handle, jstring oKey) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
vector<string> value;
bool hasValue = kv->getVector(key, value);
if (hasValue) {
return vector2jarray(env, value);
}
}
return nullptr;
}
MMKV_JNI void clearMemoryCache(JNIEnv *env, jobject instance) {
MMKV *kv = getMMKV(env, instance);
if (kv) {
kv->clearMemoryCache();
}
}
MMKV_JNI void lock(JNIEnv *env, jobject instance) {
MMKV *kv = getMMKV(env, instance);
if (kv) {
kv->lock();
}
}
MMKV_JNI void unlock(JNIEnv *env, jobject instance) {
MMKV *kv = getMMKV(env, instance);
if (kv) {
kv->unlock();
}
}
MMKV_JNI jboolean tryLock(JNIEnv *env, jobject instance) {
MMKV *kv = getMMKV(env, instance);
if (kv) {
return (jboolean) kv->try_lock();
}
return jboolean(false);
}
MMKV_JNI jint pageSize(JNIEnv *env, jclass type) {
return DEFAULT_MMAP_SIZE;
}
MMKV_JNI jstring version(JNIEnv *env, jclass type) {
return string2jstring(env, MMKV_VERSION);
}
# ifndef MMKV_DISABLE_CRYPT
MMKV_JNI jstring cryptKey(JNIEnv *env, jobject instance) {
MMKV *kv = getMMKV(env, instance);
if (kv) {
string cryptKey = kv->cryptKey();
if (cryptKey.length() > 0) {
return string2jstring(env, cryptKey);
}
}
return nullptr;
}
MMKV_JNI jboolean reKey(JNIEnv *env, jobject instance, jstring cryptKey) {
MMKV *kv = getMMKV(env, instance);
if (kv) {
string newKey;
if (cryptKey) {
newKey = jstring2string(env, cryptKey);
}
return (jboolean) kv->reKey(newKey);
}
return (jboolean) false;
}
MMKV_JNI void checkReSetCryptKey(JNIEnv *env, jobject instance, jstring cryptKey) {
MMKV *kv = getMMKV(env, instance);
if (kv) {
string newKey;
if (cryptKey) {
newKey = jstring2string(env, cryptKey);
}
if (!cryptKey || newKey.empty()) {
kv->checkReSetCryptKey(nullptr);
} else {
kv->checkReSetCryptKey(&newKey);
}
}
}
# else
MMKV_JNI jstring cryptKey(JNIEnv *env, jobject instance) {
return nullptr;
}
# endif // MMKV_DISABLE_CRYPT
MMKV_JNI void trim(JNIEnv *env, jobject instance) {
MMKV *kv = getMMKV(env, instance);
if (kv) {
kv->trim();
}
}
MMKV_JNI void close(JNIEnv *env, jobject instance) {
MMKV *kv = getMMKV(env, instance);
if (kv) {
kv->close();
env->SetLongField(instance, g_fileID, 0);
}
}
MMKV_JNI jint valueSize(JNIEnv *env, jobject, jlong handle, jstring oKey, jboolean actualSize) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return static_cast<jint>(kv->getValueSize(key, (bool) actualSize));
}
return 0;
}
MMKV_JNI void setLogLevel(JNIEnv *env, jclass type, jint level) {
MMKV::setLogLevel((MMKVLogLevel) level);
}
MMKV_JNI void setCallbackHandler(JNIEnv *env, jclass type, jboolean logReDirecting, jboolean hasCallback) {
if (logReDirecting == JNI_TRUE) {
MMKV::registerLogHandler(mmkvLog);
} else {
MMKV::unRegisterLogHandler();
}
if (hasCallback == JNI_TRUE) {
MMKV::registerErrorHandler(onMMKVError);
} else {
MMKV::unRegisterErrorHandler();
}
}
MMKV_JNI jlong createNB(JNIEnv *env, jobject instance, jint size) {
auto ptr = malloc(static_cast<size_t>(size));
if (!ptr) {
MMKVError("fail to create NativeBuffer:%s", strerror(errno));
return 0;
}
return reinterpret_cast<jlong>(ptr);
}
MMKV_JNI void destroyNB(JNIEnv *env, jobject instance, jlong pointer, jint size) {
free(reinterpret_cast<void *>(pointer));
}
MMKV_JNI jint writeValueToNB(JNIEnv *env, jobject instance, jlong handle, jstring oKey, jlong pointer, jint size) {
MMKV *kv = reinterpret_cast<MMKV *>(handle);
if (kv && oKey) {
string key = jstring2string(env, oKey);
return kv->writeValueToBuffer(key, reinterpret_cast<void *>(pointer), size);
}
return -1;
}
MMKV_JNI void setWantsContentChangeNotify(JNIEnv *env, jclass type, jboolean notify) {
if (notify == JNI_TRUE) {
MMKV::registerContentChangeHandler(onContentChangedByOuterProcess);
} else {
MMKV::unRegisterContentChangeHandler();
}
}
MMKV_JNI void checkContentChanged(JNIEnv *env, jobject instance) {
MMKV *kv = getMMKV(env, instance);
if (kv) {
kv->checkContentChanged();
}
}
MMKV_JNI jboolean backupOne(JNIEnv *env, jobject obj, jstring mmapID, jstring dstDir, jstring rootPath) {
if (rootPath) {
string root = jstring2string(env, rootPath);
if (root.length() > 0) {
return (jboolean) MMKV::backupOneToDirectory(jstring2string(env, mmapID), jstring2string(env, dstDir), &root);
}
}
return (jboolean) MMKV::backupOneToDirectory(jstring2string(env, mmapID), jstring2string(env, dstDir));
}
MMKV_JNI jboolean restoreOne(JNIEnv *env, jobject obj, jstring mmapID, jstring srcDir, jstring rootPath) {
if (rootPath) {
string root = jstring2string(env, rootPath);
if (root.length() > 0) {
return (jboolean) MMKV::restoreOneFromDirectory(jstring2string(env, mmapID), jstring2string(env, srcDir), &root);
}
}
return (jboolean) MMKV::restoreOneFromDirectory(jstring2string(env, mmapID), jstring2string(env, srcDir));
}
MMKV_JNI jlong backupAll(JNIEnv *env, jobject obj, jstring dstDir/*, jstring rootPath*/) {
// historically Android mistakenly use mmapKey as mmapID
// makes everything tricky with customize root
/*if (rootPath) {
string root = jstring2string(env, rootPath);
if (root.length() > 0) {
return (jlong) MMKV::backupAllToDirectory(jstring2string(env, dstDir), &root);
}
}*/
return (jlong) MMKV::backupAllToDirectory(jstring2string(env, dstDir));
}
MMKV_JNI jlong restoreAll(JNIEnv *env, jobject obj, jstring srcDir/*, jstring rootPath*/) {
// historically Android mistakenly use mmapKey as mmapID
// makes everything tricky with customize root
/*if (rootPath) {
string root = jstring2string(env, rootPath);
if (root.length() > 0) {
return (jlong) MMKV::restoreAllFromDirectory(jstring2string(env, srcDir), &root);