rocksdb/java/rocksjni/lru_cache.cc
Siying Dong 3c327ac2d0 Change RocksDB License
Summary: Closes https://github.com/facebook/rocksdb/pull/2589

Differential Revision: D5431502

Pulled By: siying

fbshipit-source-id: 8ebf8c87883daa9daa54b2303d11ce01ab1f6f75
2017-07-15 16:11:23 -07:00

42 lines
1.4 KiB
C++

// 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
}