| // 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::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::Cache>(rocksdb::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::Cache> *>(jhandle); |
| delete sptr_lru_cache; // delete std::shared_ptr |
| } |
