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https://github.com/facebook/rocksdb.git
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0bf9079d44
Summary: This should give us some performance benefit calling native C++ code. Closes https://github.com/facebook/rocksdb/issues/4786 See https://github.com/evolvedbinary/jni-benchmarks/ for more info. Pull Request resolved: https://github.com/facebook/rocksdb/pull/11882 Reviewed By: pdillinger Differential Revision: D53066207 Pulled By: ajkr fbshipit-source-id: daedef185215d0d8e791cd85bef598900bcb5bf2
48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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// This file implements the "bridge" between Java and C++ for
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// ROCKSDB_NAMESPACE::FilterPolicy.
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#include <jni.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string>
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#include "include/org_rocksdb_BloomFilter.h"
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#include "include/org_rocksdb_Filter.h"
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#include "rocksdb/filter_policy.h"
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#include "rocksjni/cplusplus_to_java_convert.h"
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#include "rocksjni/portal.h"
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/*
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* Class: org_rocksdb_BloomFilter
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* Method: createBloomFilter
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* Signature: (DZ)J
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*/
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jlong Java_org_rocksdb_BloomFilter_createNewBloomFilter(JNIEnv* /*env*/,
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jclass /*jcls*/,
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jdouble bits_per_key) {
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auto* sptr_filter =
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new std::shared_ptr<const ROCKSDB_NAMESPACE::FilterPolicy>(
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ROCKSDB_NAMESPACE::NewBloomFilterPolicy(bits_per_key));
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return GET_CPLUSPLUS_POINTER(sptr_filter);
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}
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/*
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* Class: org_rocksdb_Filter
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* Method: disposeInternal
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* Signature: (J)V
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*/
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void Java_org_rocksdb_Filter_disposeInternalJni(JNIEnv* /*env*/,
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jclass /*jcls*/,
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jlong jhandle) {
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auto* handle =
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reinterpret_cast<std::shared_ptr<const ROCKSDB_NAMESPACE::FilterPolicy>*>(
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jhandle);
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delete handle; // delete std::shared_ptr
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}
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