e72b02e3c2
Summary: Add basic Java binding for rocksdb::Env. Test Plan: make rocksdbjava make jtest cd java ./jdb_bench.sh --max_background_compactions=1 ./jdb_bench.sh --max_background_compactions=10 Reviewers: sdong, ankgup87, haobo Reviewed By: haobo Subscribers: leveldb Differential Revision: https://reviews.facebook.net/D18903
67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
// Copyright (c) 2014, 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++ and enables
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// calling c++ rocksdb::Env methods from Java side.
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#include "include/org_rocksdb_RocksEnv.h"
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#include "rocksdb/env.h"
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/*
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* Class: org_rocksdb_RocksEnv
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* Method: getDefaultEnvInternal
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* Signature: ()J
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*/
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jlong Java_org_rocksdb_RocksEnv_getDefaultEnvInternal(
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JNIEnv* env, jclass jclass) {
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return reinterpret_cast<jlong>(rocksdb::Env::Default());
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}
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/*
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* Class: org_rocksdb_RocksEnv
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* Method: setBackgroundThreads
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* Signature: (JII)V
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*/
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void Java_org_rocksdb_RocksEnv_setBackgroundThreads(
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JNIEnv* env, jobject jobj, jlong jhandle,
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jint num, jint priority) {
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auto* rocks_env = reinterpret_cast<rocksdb::Env*>(jhandle);
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switch (priority) {
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case org_rocksdb_RocksEnv_FLUSH_POOL:
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rocks_env->SetBackgroundThreads(num, rocksdb::Env::Priority::LOW);
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break;
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case org_rocksdb_RocksEnv_COMPACTION_POOL:
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rocks_env->SetBackgroundThreads(num, rocksdb::Env::Priority::HIGH);
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break;
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}
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}
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/*
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* Class: org_rocksdb_RocksEnv
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* Method: getThreadPoolQueueLen
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* Signature: (JI)I
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*/
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jint Java_org_rocksdb_RocksEnv_getThreadPoolQueueLen(
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JNIEnv* env, jobject jobj, jlong jhandle, jint pool_id) {
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auto* rocks_env = reinterpret_cast<rocksdb::Env*>(jhandle);
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switch (pool_id) {
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case org_rocksdb_RocksEnv_FLUSH_POOL:
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return rocks_env->GetThreadPoolQueueLen(rocksdb::Env::Priority::LOW);
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case org_rocksdb_RocksEnv_COMPACTION_POOL:
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return rocks_env->GetThreadPoolQueueLen(rocksdb::Env::Priority::HIGH);
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}
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return 0;
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}
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/*
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* Class: org_rocksdb_RocksEnv
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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_RocksEnv_disposeInternal(
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JNIEnv* env, jobject jobj, jlong jhandle) {
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delete reinterpret_cast<rocksdb::Env*>(jhandle);
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}
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