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rocksdb/java/rocksjni/concurrent_task_limiter.cc

90 lines
3.0 KiB

#include "rocksdb/concurrent_task_limiter.h"
#include <jni.h>
#include <memory>
#include <string>
#include "include/org_rocksdb_ConcurrentTaskLimiterImpl.h"
#include "rocksjni/portal.h"
/*
* Class: org_rocksdb_ConcurrentTaskLimiterImpl
* Method: newConcurrentTaskLimiterImpl0
* Signature: (Ljava/lang/String;I)J
*/
jlong Java_org_rocksdb_ConcurrentTaskLimiterImpl_newConcurrentTaskLimiterImpl0(
JNIEnv* env, jclass, jstring jname, jint limit) {
jboolean has_exception;
std::string name =
ROCKSDB_NAMESPACE::JniUtil::copyStdString(env, jname, &has_exception);
if (JNI_TRUE == has_exception) {
return 0;
}
auto* ptr = new std::shared_ptr<ROCKSDB_NAMESPACE::ConcurrentTaskLimiter>(
ROCKSDB_NAMESPACE::NewConcurrentTaskLimiter(name, limit));
return reinterpret_cast<jlong>(ptr);
}
/*
* Class: org_rocksdb_ConcurrentTaskLimiterImpl
* Method: name
* Signature: (J)Ljava/lang/String;
*/
jstring Java_org_rocksdb_ConcurrentTaskLimiterImpl_name(JNIEnv* env, jclass,
jlong handle) {
const auto& limiter = *reinterpret_cast<
std::shared_ptr<ROCKSDB_NAMESPACE::ConcurrentTaskLimiter>*>(handle);
return ROCKSDB_NAMESPACE::JniUtil::toJavaString(env, &limiter->GetName());
}
/*
* Class: org_rocksdb_ConcurrentTaskLimiterImpl
* Method: setMaxOutstandingTask
* Signature: (JI)V
*/
void Java_org_rocksdb_ConcurrentTaskLimiterImpl_setMaxOutstandingTask(
JNIEnv*, jclass, jlong handle, jint max_outstanding_task) {
const auto& limiter = *reinterpret_cast<
std::shared_ptr<ROCKSDB_NAMESPACE::ConcurrentTaskLimiter>*>(handle);
limiter->SetMaxOutstandingTask(static_cast<int32_t>(max_outstanding_task));
}
/*
* Class: org_rocksdb_ConcurrentTaskLimiterImpl
* Method: resetMaxOutstandingTask
* Signature: (J)V
*/
void Java_org_rocksdb_ConcurrentTaskLimiterImpl_resetMaxOutstandingTask(
JNIEnv*, jclass, jlong handle) {
const auto& limiter = *reinterpret_cast<
std::shared_ptr<ROCKSDB_NAMESPACE::ConcurrentTaskLimiter>*>(handle);
limiter->ResetMaxOutstandingTask();
}
/*
* Class: org_rocksdb_ConcurrentTaskLimiterImpl
* Method: outstandingTask
* Signature: (J)I
*/
jint Java_org_rocksdb_ConcurrentTaskLimiterImpl_outstandingTask(JNIEnv*, jclass,
jlong handle) {
const auto& limiter = *reinterpret_cast<
std::shared_ptr<ROCKSDB_NAMESPACE::ConcurrentTaskLimiter>*>(handle);
return static_cast<jint>(limiter->GetOutstandingTask());
}
/*
* Class: org_rocksdb_ConcurrentTaskLimiterImpl
* Method: disposeInternal
* Signature: (J)V
*/
void Java_org_rocksdb_ConcurrentTaskLimiterImpl_disposeInternal(JNIEnv*,
jobject,
jlong jhandle) {
auto* ptr = reinterpret_cast<
std::shared_ptr<ROCKSDB_NAMESPACE::ConcurrentTaskLimiter>*>(jhandle);
delete ptr; // delete std::shared_ptr
}