blob: 3fd274e9d6bdcd690ca75f4dca19a6b84594c78e [file] [log] [blame]
/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include "base/macros.h"
#include "jni.h"
#include "jvmti.h"
#include "ScopedUtfChars.h"
#include "ti-agent/common_helper.h"
#include "ti-agent/common_load.h"
namespace art {
namespace Test922Properties {
extern "C" JNIEXPORT jobjectArray JNICALL Java_Main_getSystemProperties(
JNIEnv* env, jclass Main_klass ATTRIBUTE_UNUSED) {
jint count;
char** properties;
jvmtiError result = jvmti_env->GetSystemProperties(&count, &properties);
if (JvmtiErrorToException(env, result)) {
return nullptr;
}
auto callback = [&](jint i) -> jstring {
char* data = properties[i];
if (data == nullptr) {
return nullptr;
}
jstring ret = env->NewStringUTF(data);
jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(data));
return ret;
};
jobjectArray ret = CreateObjectArray(env, count, "java/lang/String", callback);
jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(properties));
return ret;
}
extern "C" JNIEXPORT jstring JNICALL Java_Main_getSystemProperty(
JNIEnv* env, jclass Main_klass ATTRIBUTE_UNUSED, jstring key) {
ScopedUtfChars string(env, key);
if (string.c_str() == nullptr) {
return nullptr;
}
char* value = nullptr;
jvmtiError result = jvmti_env->GetSystemProperty(string.c_str(), &value);
if (JvmtiErrorToException(env, result)) {
return nullptr;
}
jstring ret = (value == nullptr) ? nullptr : env->NewStringUTF(value);
jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(value));
return ret;
}
extern "C" JNIEXPORT void JNICALL Java_Main_setSystemProperty(
JNIEnv* env, jclass Main_klass ATTRIBUTE_UNUSED, jstring key, jstring value) {
ScopedUtfChars key_string(env, key);
if (key_string.c_str() == nullptr) {
return;
}
ScopedUtfChars value_string(env, value);
if (value_string.c_str() == nullptr) {
return;
}
jvmtiError result = jvmti_env->SetSystemProperty(key_string.c_str(), value_string.c_str());
if (JvmtiErrorToException(env, result)) {
return;
}
}
} // namespace Test922Properties
} // namespace art