mirror of
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
97 lines
3.2 KiB
C++
97 lines
3.2 KiB
C++
// Copyright (c) Meta Platforms, Inc. and affiliates.
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//
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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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#include "rocksdb/concurrent_task_limiter.h"
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#include <jni.h>
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#include <memory>
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#include <string>
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#include "include/org_rocksdb_ConcurrentTaskLimiterImpl.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_ConcurrentTaskLimiterImpl
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* Method: newConcurrentTaskLimiterImpl0
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* Signature: (Ljava/lang/String;I)J
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*/
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jlong Java_org_rocksdb_ConcurrentTaskLimiterImpl_newConcurrentTaskLimiterImpl0(
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JNIEnv* env, jclass, jstring jname, jint limit) {
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jboolean has_exception = JNI_FALSE;
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std::string name =
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ROCKSDB_NAMESPACE::JniUtil::copyStdString(env, jname, &has_exception);
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if (JNI_TRUE == has_exception) {
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return 0;
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}
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auto* ptr = new std::shared_ptr<ROCKSDB_NAMESPACE::ConcurrentTaskLimiter>(
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ROCKSDB_NAMESPACE::NewConcurrentTaskLimiter(name, limit));
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return GET_CPLUSPLUS_POINTER(ptr);
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}
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/*
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* Class: org_rocksdb_ConcurrentTaskLimiterImpl
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* Method: name
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* Signature: (J)Ljava/lang/String;
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*/
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jstring Java_org_rocksdb_ConcurrentTaskLimiterImpl_name(JNIEnv* env, jclass,
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jlong handle) {
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const auto& limiter = *reinterpret_cast<
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std::shared_ptr<ROCKSDB_NAMESPACE::ConcurrentTaskLimiter>*>(handle);
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return ROCKSDB_NAMESPACE::JniUtil::toJavaString(env, &limiter->GetName());
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}
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/*
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* Class: org_rocksdb_ConcurrentTaskLimiterImpl
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* Method: setMaxOutstandingTask
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* Signature: (JI)V
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*/
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void Java_org_rocksdb_ConcurrentTaskLimiterImpl_setMaxOutstandingTask(
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JNIEnv*, jclass, jlong handle, jint max_outstanding_task) {
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const auto& limiter = *reinterpret_cast<
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std::shared_ptr<ROCKSDB_NAMESPACE::ConcurrentTaskLimiter>*>(handle);
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limiter->SetMaxOutstandingTask(static_cast<int32_t>(max_outstanding_task));
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}
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/*
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* Class: org_rocksdb_ConcurrentTaskLimiterImpl
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* Method: resetMaxOutstandingTask
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* Signature: (J)V
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*/
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void Java_org_rocksdb_ConcurrentTaskLimiterImpl_resetMaxOutstandingTask(
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JNIEnv*, jclass, jlong handle) {
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const auto& limiter = *reinterpret_cast<
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std::shared_ptr<ROCKSDB_NAMESPACE::ConcurrentTaskLimiter>*>(handle);
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limiter->ResetMaxOutstandingTask();
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}
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/*
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* Class: org_rocksdb_ConcurrentTaskLimiterImpl
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* Method: outstandingTask
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* Signature: (J)I
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*/
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jint Java_org_rocksdb_ConcurrentTaskLimiterImpl_outstandingTask(JNIEnv*, jclass,
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jlong handle) {
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const auto& limiter = *reinterpret_cast<
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std::shared_ptr<ROCKSDB_NAMESPACE::ConcurrentTaskLimiter>*>(handle);
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return static_cast<jint>(limiter->GetOutstandingTask());
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}
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/*
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* Class: org_rocksdb_ConcurrentTaskLimiterImpl
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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_ConcurrentTaskLimiterImpl_disposeInternalJni(
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JNIEnv*, jclass, jlong jhandle) {
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auto* ptr = reinterpret_cast<
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std::shared_ptr<ROCKSDB_NAMESPACE::ConcurrentTaskLimiter>*>(jhandle);
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delete ptr; // delete std::shared_ptr
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}
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