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