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42 lines
1.2 KiB
42 lines
1.2 KiB
4 months ago
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/*
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* Copyright 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "NdkJavaVMHelper"
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#include "NdkJavaVMHelperPriv.h"
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#include <utils/Log.h>
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namespace android {
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// static
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JNIEnv *NdkJavaVMHelper::getJNIEnv() {
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JNIEnv *env;
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jsize nVMs;
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JavaVM *vm;
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int status = JNI_GetCreatedJavaVMs(&vm, 1, &nVMs);
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if (status != JNI_OK || nVMs == 0 || vm == NULL) {
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ALOGE("Failed to get JVM instance");
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return NULL;
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} else if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
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ALOGE("Failed to get JNIEnv for JavaVM: %p", vm);
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return NULL;
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}
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return env;
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}
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} // namespace android
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