// 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::LRUCache. #include <jni.h> #include "cache/lru_cache.h" #include "include/org_rocksdb_LRUCache.h" /* * Class: org_rocksdb_LRUCache * Method: newLRUCache * Signature: (JIZD)J */ jlong Java_org_rocksdb_LRUCache_newLRUCache(JNIEnv* /*env*/, jclass /*jcls*/, jlong jcapacity, jint jnum_shard_bits, jboolean jstrict_capacity_limit, jdouble jhigh_pri_pool_ratio) { auto* sptr_lru_cache = new std::shared_ptr<ROCKSDB_NAMESPACE::Cache>( ROCKSDB_NAMESPACE::NewLRUCache( static_cast<size_t>(jcapacity), static_cast<int>(jnum_shard_bits), static_cast<bool>(jstrict_capacity_limit), static_cast<double>(jhigh_pri_pool_ratio))); return reinterpret_cast<jlong>(sptr_lru_cache); } /* * Class: org_rocksdb_LRUCache * Method: disposeInternal * Signature: (J)V */ void Java_org_rocksdb_LRUCache_disposeInternal(JNIEnv* /*env*/, jobject /*jobj*/, jlong jhandle) { auto* sptr_lru_cache = reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::Cache>*>(jhandle); delete sptr_lru_cache; // delete std::shared_ptr }