rocksdb/java/rocksjni/filter.cc
sdong fdf882ded2 Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)
Summary:
When dynamically linking two binaries together, different builds of RocksDB from two sources might cause errors. To provide a tool for user to solve the problem, the RocksDB namespace is changed to a flag which can be overridden in build time.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6433

Test Plan: Build release, all and jtest. Try to build with ROCKSDB_NAMESPACE with another flag.

Differential Revision: D19977691

fbshipit-source-id: aa7f2d0972e1c31d75339ac48478f34f6cfcfb3e
2020-02-20 12:09:57 -08:00

46 lines
1.5 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::FilterPolicy.
#include <jni.h>
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include "include/org_rocksdb_BloomFilter.h"
#include "include/org_rocksdb_Filter.h"
#include "rocksdb/filter_policy.h"
#include "rocksjni/portal.h"
/*
* Class: org_rocksdb_BloomFilter
* Method: createBloomFilter
* Signature: (DZ)J
*/
jlong Java_org_rocksdb_BloomFilter_createNewBloomFilter(
JNIEnv* /*env*/, jclass /*jcls*/, jdouble bits_per_key,
jboolean use_block_base_builder) {
auto* sptr_filter =
new std::shared_ptr<const ROCKSDB_NAMESPACE::FilterPolicy>(
ROCKSDB_NAMESPACE::NewBloomFilterPolicy(bits_per_key,
use_block_base_builder));
return reinterpret_cast<jlong>(sptr_filter);
}
/*
* Class: org_rocksdb_Filter
* Method: disposeInternal
* Signature: (J)V
*/
void Java_org_rocksdb_Filter_disposeInternal(JNIEnv* /*env*/, jobject /*jobj*/,
jlong jhandle) {
auto* handle =
reinterpret_cast<std::shared_ptr<const ROCKSDB_NAMESPACE::FilterPolicy>*>(
jhandle);
delete handle; // delete std::shared_ptr
}