c6d464a9da
Summary: I have manually audited the entire RocksJava code base. Sorry for the large pull-request, I have broken it down into many small atomic commits though. My initial intention was to fix the warnings that appear when running RocksJava on Java 8 with `-Xcheck:jni`, for example when running `make jtest` you would see many errors similar to: ``` WARNING in native method: JNI call made without checking exceptions when required to from CallObjectMethod WARNING in native method: JNI call made without checking exceptions when required to from CallVoidMethod WARNING in native method: JNI call made without checking exceptions when required to from CallStaticVoidMethod ... ``` A few of those warnings still remain, however they seem to come directly from the JVM and are not directly related to RocksJava; I am in contact with the OpenJDK hostpot-dev mailing list about these - http://mail.openjdk.java.net/pipermail/hotspot-dev/2017-February/025981.html. As a result of fixing these, I realised we were not r Closes https://github.com/facebook/rocksdb/pull/1890 Differential Revision: D4591758 Pulled By: siying fbshipit-source-id: 7f7fdf4
44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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// This file implements the "bridge" between Java and C++ for
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// rocksdb::FilterPolicy.
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#include <stdio.h>
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#include <stdlib.h>
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#include <jni.h>
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#include <string>
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#include "include/org_rocksdb_Filter.h"
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#include "include/org_rocksdb_BloomFilter.h"
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#include "rocksjni/portal.h"
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#include "rocksdb/filter_policy.h"
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/*
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* Class: org_rocksdb_BloomFilter
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* Method: createBloomFilter
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* Signature: (IZ)J
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*/
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jlong Java_org_rocksdb_BloomFilter_createNewBloomFilter(
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JNIEnv* env, jclass jcls, jint bits_per_key,
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jboolean use_block_base_builder) {
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auto* sptr_filter =
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new std::shared_ptr<const rocksdb::FilterPolicy>(
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rocksdb::NewBloomFilterPolicy(bits_per_key, use_block_base_builder));
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return reinterpret_cast<jlong>(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_disposeInternal(
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JNIEnv* env, jobject jobj, jlong jhandle) {
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auto* handle =
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reinterpret_cast<std::shared_ptr<const rocksdb::FilterPolicy> *>(jhandle);
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delete handle; // delete std::shared_ptr
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}
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