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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
//
// This file implements the "bridge" between Java and C++ and enables
// calling c++ ROCKSDB_NAMESPACE::Env methods from Java side.
#include "rocksdb/env.h"
#include <jni.h>
#include <vector>
#include "include/org_rocksdb_Env.h"
#include "include/org_rocksdb_RocksEnv.h"
#include "include/org_rocksdb_RocksMemEnv.h"
#include "include/org_rocksdb_TimedEnv.h"
#include "portal.h"
#include "rocksjni/cplusplus_to_java_convert.h"
/*
* Class: org_rocksdb_Env
* Method: getDefaultEnvInternal
* Signature: ()J
*/
jlong Java_org_rocksdb_Env_getDefaultEnvInternal(JNIEnv*, jclass) {
return GET_CPLUSPLUS_POINTER(ROCKSDB_NAMESPACE::Env::Default());
}
/*
* Class: org_rocksdb_RocksEnv
* Method: disposeInternal
* Signature: (J)V
*/
void Java_org_rocksdb_RocksEnv_disposeInternal(JNIEnv*, jclass, jlong jhandle) {
auto* e = reinterpret_cast<ROCKSDB_NAMESPACE::Env*>(jhandle);
assert(e != nullptr);
delete e;
}
/*
* Class: org_rocksdb_Env
* Method: setBackgroundThreads
* Signature: (JIB)V
*/
void Java_org_rocksdb_Env_setBackgroundThreads(JNIEnv*, jclass, jlong jhandle,
jint jnum,
jbyte jpriority_value) {
auto* rocks_env = reinterpret_cast<ROCKSDB_NAMESPACE::Env*>(jhandle);
rocks_env->SetBackgroundThreads(
static_cast<int>(jnum),
ROCKSDB_NAMESPACE::PriorityJni::toCppPriority(jpriority_value));
}
/*
* Class: org_rocksdb_Env
* Method: getBackgroundThreads
* Signature: (JB)I
*/
jint Java_org_rocksdb_Env_getBackgroundThreads(JNIEnv*, jclass, jlong jhandle,
jbyte jpriority_value) {
auto* rocks_env = reinterpret_cast<ROCKSDB_NAMESPACE::Env*>(jhandle);
const int num = rocks_env->GetBackgroundThreads(
ROCKSDB_NAMESPACE::PriorityJni::toCppPriority(jpriority_value));
return static_cast<jint>(num);
}
/*
* Class: org_rocksdb_Env
* Method: getThreadPoolQueueLen
* Signature: (JB)I
*/
jint Java_org_rocksdb_Env_getThreadPoolQueueLen(JNIEnv*, jclass, jlong jhandle,
jbyte jpriority_value) {
auto* rocks_env = reinterpret_cast<ROCKSDB_NAMESPACE::Env*>(jhandle);
const int queue_len = rocks_env->GetThreadPoolQueueLen(
ROCKSDB_NAMESPACE::PriorityJni::toCppPriority(jpriority_value));
return static_cast<jint>(queue_len);
}
/*
* Class: org_rocksdb_Env
* Method: incBackgroundThreadsIfNeeded
* Signature: (JIB)V
*/
void Java_org_rocksdb_Env_incBackgroundThreadsIfNeeded(JNIEnv*, jclass,
jlong jhandle, jint jnum,
jbyte jpriority_value) {
auto* rocks_env = reinterpret_cast<ROCKSDB_NAMESPACE::Env*>(jhandle);
rocks_env->IncBackgroundThreadsIfNeeded(
static_cast<int>(jnum),
ROCKSDB_NAMESPACE::PriorityJni::toCppPriority(jpriority_value));
}
/*
* Class: org_rocksdb_Env
* Method: lowerThreadPoolIOPriority
* Signature: (JB)V
*/
void Java_org_rocksdb_Env_lowerThreadPoolIOPriority(JNIEnv*, jclass,
jlong jhandle,
jbyte jpriority_value) {
auto* rocks_env = reinterpret_cast<ROCKSDB_NAMESPACE::Env*>(jhandle);
rocks_env->LowerThreadPoolIOPriority(
ROCKSDB_NAMESPACE::PriorityJni::toCppPriority(jpriority_value));
}
/*
* Class: org_rocksdb_Env
* Method: lowerThreadPoolCPUPriority
* Signature: (JB)V
*/
void Java_org_rocksdb_Env_lowerThreadPoolCPUPriority(JNIEnv*, jclass,
jlong jhandle,
jbyte jpriority_value) {
auto* rocks_env = reinterpret_cast<ROCKSDB_NAMESPACE::Env*>(jhandle);
rocks_env->LowerThreadPoolCPUPriority(
ROCKSDB_NAMESPACE::PriorityJni::toCppPriority(jpriority_value));
}
/*
* Class: org_rocksdb_Env
* Method: getThreadList
* Signature: (J)[Lorg/rocksdb/ThreadStatus;
*/
jobjectArray Java_org_rocksdb_Env_getThreadList(JNIEnv* env, jclass,
jlong jhandle) {
auto* rocks_env = reinterpret_cast<ROCKSDB_NAMESPACE::Env*>(jhandle);
std::vector<ROCKSDB_NAMESPACE::ThreadStatus> thread_status;
ROCKSDB_NAMESPACE::Status s = rocks_env->GetThreadList(&thread_status);
if (!s.ok()) {
// error, throw exception
ROCKSDB_NAMESPACE::RocksDBExceptionJni::ThrowNew(env, s);
return nullptr;
}
// object[]
const jsize len = static_cast<jsize>(thread_status.size());
jobjectArray jthread_status = env->NewObjectArray(
len, ROCKSDB_NAMESPACE::ThreadStatusJni::getJClass(env), nullptr);
if (jthread_status == nullptr) {
// an exception occurred
return nullptr;
}
for (jsize i = 0; i < len; ++i) {
jobject jts =
ROCKSDB_NAMESPACE::ThreadStatusJni::construct(env, &(thread_status[i]));
env->SetObjectArrayElement(jthread_status, i, jts);
if (env->ExceptionCheck()) {
// exception occurred
env->DeleteLocalRef(jthread_status);
return nullptr;
}
}
return jthread_status;
}
/*
* Class: org_rocksdb_RocksMemEnv
* Method: createMemEnv
* Signature: (J)J
*/
jlong Java_org_rocksdb_RocksMemEnv_createMemEnv(JNIEnv*, jclass,
jlong jbase_env_handle) {
auto* base_env = reinterpret_cast<ROCKSDB_NAMESPACE::Env*>(jbase_env_handle);
return GET_CPLUSPLUS_POINTER(ROCKSDB_NAMESPACE::NewMemEnv(base_env));
}
/*
* Class: org_rocksdb_RocksMemEnv
* Method: disposeInternal
* Signature: (J)V
*/
void Java_org_rocksdb_RocksMemEnv_disposeInternalJni(JNIEnv*, jclass,
jlong jhandle) {
auto* e = reinterpret_cast<ROCKSDB_NAMESPACE::Env*>(jhandle);
assert(e != nullptr);
delete e;
}
/*
* Class: org_rocksdb_TimedEnv
* Method: createTimedEnv
* Signature: (J)J
*/
jlong Java_org_rocksdb_TimedEnv_createTimedEnv(JNIEnv*, jclass,
jlong jbase_env_handle) {
auto* base_env = reinterpret_cast<ROCKSDB_NAMESPACE::Env*>(jbase_env_handle);
return GET_CPLUSPLUS_POINTER(ROCKSDB_NAMESPACE::NewTimedEnv(base_env));
}
/*
* Class: org_rocksdb_TimedEnv
* Method: disposeInternal
* Signature: (J)V
*/
void Java_org_rocksdb_TimedEnv_disposeInternalJni(JNIEnv*, jclass,
jlong jhandle) {
auto* e = reinterpret_cast<ROCKSDB_NAMESPACE::Env*>(jhandle);
assert(e != nullptr);
delete e;
}
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