fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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50 lines
1.7 KiB
50 lines
1.7 KiB
// 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::Statistics methods from Java side.
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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 "include/org_rocksdb_Statistics.h"
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#include "rocksjni/portal.h"
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#include "rocksdb/statistics.h"
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/*
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* Class: org_rocksdb_Statistics
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* Method: getTickerCount0
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* Signature: (IJ)J
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*/
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jlong Java_org_rocksdb_Statistics_getTickerCount0(
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JNIEnv* env, jobject jobj, int tickerType, jlong handle) {
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auto st = reinterpret_cast<rocksdb::Statistics*>(handle);
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assert(st != nullptr);
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return st->getTickerCount(static_cast<rocksdb::Tickers>(tickerType));
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}
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/*
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* Class: org_rocksdb_Statistics
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* Method: geHistogramData0
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* Signature: (IJ)Lorg/rocksdb/HistogramData;
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*/
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jobject Java_org_rocksdb_Statistics_geHistogramData0(
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JNIEnv* env, jobject jobj, int histogramType, jlong handle) {
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auto st = reinterpret_cast<rocksdb::Statistics*>(handle);
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assert(st != nullptr);
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rocksdb::HistogramData data;
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st->histogramData(static_cast<rocksdb::Histograms>(histogramType),
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&data);
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// Don't reuse class pointer
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jclass jclazz = env->FindClass("org/rocksdb/HistogramData");
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jmethodID mid = rocksdb::HistogramDataJni::getConstructorMethodId(
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env, jclazz);
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return env->NewObject(jclazz, mid, data.median, data.percentile95,
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data.percentile99, data.average, data.standard_deviation);
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}
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