rocksdb/java/rocksjni/cache.cc
Xiaopeng Zhang c603f2f898 support getUsage and getPinnedUsage in JavaAPI for Cache (#7925)
Summary:
support getUsage and getPinnedUsage in JavaAPI for Cache
also fix a typo in LRUCacheTest.java that the highPriPoolRatio is not valid(set 5, I guess it means 0.05)

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7925

Reviewed By: mrambacher

Differential Revision: D26900241

Pulled By: ajkr

fbshipit-source-id: 735d1e40a16fa8919c89c7c7154ba7f81208ec33
2021-03-17 09:30:33 -07:00

36 lines
1.1 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_NAMESPACE::Cache.
#include "rocksdb/cache.h"
#include <jni.h>
#include "include/org_rocksdb_Cache.h"
/*
* Class: org_rocksdb_Cache
* Method: getUsage
* Signature: (J)J
*/
jlong Java_org_rocksdb_Cache_getUsage(JNIEnv*, jclass, jlong jhandle) {
auto* sptr_cache =
reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::Cache>*>(jhandle);
return static_cast<jlong>(sptr_cache->get()->GetUsage());
}
/*
* Class: org_rocksdb_Cache
* Method: getPinnedUsage
* Signature: (J)J
*/
jlong Java_org_rocksdb_Cache_getPinnedUsage(JNIEnv*, jclass, jlong jhandle) {
auto* sptr_cache =
reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::Cache>*>(jhandle);
return static_cast<jlong>(sptr_cache->get()->GetPinnedUsage());
}