42 lines
1.4 KiB
C++
42 lines
1.4 KiB
C++
|
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
|
||
|
|
// This source code is licensed under the BSD-style license found in the
|
||
|
|
// LICENSE file in the root directory of this source tree. An additional grant
|
||
|
|
// of patent rights can be found in the PATENTS file in the same directory.
|
||
|
|
//
|
||
|
|
// This file implements the "bridge" between Java and C++ for
|
||
|
|
// rocksdb::LRUCache.
|
||
|
|
|
||
|
|
#include <jni.h>
|
||
|
|
|
||
|
|
#include "include/org_rocksdb_LRUCache.h"
|
||
|
|
#include "util/lru_cache.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
|
||
|
|
}
|