54 lines
1.8 KiB
C++
54 lines
1.8 KiB
C++
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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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// This file implements the "bridge" between Java and C++ for
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// rocksdb::PersistentCache.
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#include <jni.h>
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#include <string>
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#include "include/org_rocksdb_PersistentCache.h"
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#include "rocksdb/persistent_cache.h"
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#include "loggerjnicallback.h"
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#include "portal.h"
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/*
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* Class: org_rocksdb_PersistentCache
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* Method: newPersistentCache
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* Signature: (JLjava/lang/String;JJZ)J
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*/
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jlong Java_org_rocksdb_PersistentCache_newPersistentCache(
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JNIEnv* env, jclass, jlong jenv_handle, jstring jpath,
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jlong jsz, jlong jlogger_handle, jboolean joptimized_for_nvm) {
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auto* rocks_env = reinterpret_cast<rocksdb::Env*>(jenv_handle);
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jboolean has_exception = JNI_FALSE;
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std::string path = rocksdb::JniUtil::copyStdString(env, jpath, &has_exception);
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if (has_exception == JNI_TRUE) {
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return 0;
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}
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auto* logger =
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reinterpret_cast<std::shared_ptr<rocksdb::LoggerJniCallback>*>(jlogger_handle);
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auto* cache = new std::shared_ptr<rocksdb::PersistentCache>(nullptr);
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rocksdb::Status s = rocksdb::NewPersistentCache(
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rocks_env, path, static_cast<uint64_t>(jsz), *logger,
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static_cast<bool>(joptimized_for_nvm), cache);
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if (!s.ok()) {
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rocksdb::RocksDBExceptionJni::ThrowNew(env, s);
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}
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return reinterpret_cast<jlong>(cache);
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}
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/*
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* Class: org_rocksdb_PersistentCache
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* Method: disposeInternal
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* Signature: (J)V
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*/
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void Java_org_rocksdb_PersistentCache_disposeInternal(
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JNIEnv*, jobject, jlong jhandle) {
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auto* cache =
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reinterpret_cast<std::shared_ptr<rocksdb::PersistentCache>*>(jhandle);
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delete cache; // delete std::shared_ptr
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}
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