mirror of
https://github.com/facebook/rocksdb.git
synced 2024-11-26 16:30:56 +00:00
51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
// Copyright (c) 2014, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under the BSD-style license found in the
|
|
// LICENSE file in the root directory of this source tree. An additional grant
|
|
// of patent rights can be found in the PATENTS file in the same directory.
|
|
//
|
|
// This file implements the "bridge" between Java and C++ and enables
|
|
// calling c++ rocksdb::Statistics methods from Java side.
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <jni.h>
|
|
|
|
#include "include/org_rocksdb_Statistics.h"
|
|
#include "rocksjni/portal.h"
|
|
#include "rocksdb/statistics.h"
|
|
|
|
/*
|
|
* Class: org_rocksdb_Statistics
|
|
* Method: getTickerCount0
|
|
* Signature: (IJ)J
|
|
*/
|
|
jlong Java_org_rocksdb_Statistics_getTickerCount0(
|
|
JNIEnv* env, jobject jobj, jint tickerType, jlong handle) {
|
|
auto st = reinterpret_cast<rocksdb::Statistics*>(handle);
|
|
assert(st != nullptr);
|
|
|
|
return st->getTickerCount(static_cast<rocksdb::Tickers>(tickerType));
|
|
}
|
|
|
|
/*
|
|
* Class: org_rocksdb_Statistics
|
|
* Method: geHistogramData0
|
|
* Signature: (IJ)Lorg/rocksdb/HistogramData;
|
|
*/
|
|
jobject Java_org_rocksdb_Statistics_geHistogramData0(
|
|
JNIEnv* env, jobject jobj, jint histogramType, jlong handle) {
|
|
auto st = reinterpret_cast<rocksdb::Statistics*>(handle);
|
|
assert(st != nullptr);
|
|
|
|
rocksdb::HistogramData data;
|
|
st->histogramData(static_cast<rocksdb::Histograms>(histogramType),
|
|
&data);
|
|
|
|
// Don't reuse class pointer
|
|
jclass jclazz = env->FindClass("org/rocksdb/HistogramData");
|
|
jmethodID mid = rocksdb::HistogramDataJni::getConstructorMethodId(
|
|
env, jclazz);
|
|
return env->NewObject(jclazz, mid, data.median, data.percentile95,
|
|
data.percentile99, data.average, data.standard_deviation);
|
|
}
|