78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
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/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* Winpr android helpers
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*
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* Copyright 2022 Armin Novak <armin.novak@thincast.com>
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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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#include "android.h"
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#include <jni.h>
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#include <winpr/winpr.h>
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#include <winpr/assert.h>
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#include "../log.h"
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#define TAG WINPR_TAG("android")
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JavaVM* jniVm = NULL;
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WINPR_API jint JNI_OnLoad(JavaVM* vm, void* reserved)
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{
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WLog_INFO(TAG, "Setting up JNI environement...");
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jniVm = vm;
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return JNI_VERSION_1_6;
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}
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WINPR_API void JNICALL JNI_OnUnload(JavaVM* vm, void* reserved)
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{
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JNIEnv* env = NULL;
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WLog_INFO(TAG, "Tearing down JNI environement...");
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if ((*jniVm)->GetEnv(vm, (void**)&env, JNI_VERSION_1_6) != JNI_OK)
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{
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WLog_FATAL(TAG, "Failed to get the environment");
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return;
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}
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}
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jboolean winpr_jni_attach_thread(JNIEnv** env)
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{
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WINPR_ASSERT(jniVm);
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if ((*jniVm)->GetEnv(jniVm, (void**)env, JNI_VERSION_1_4) != JNI_OK)
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{
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WLog_INFO(TAG, "android_java_callback: attaching current thread");
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(*jniVm)->AttachCurrentThread(jniVm, env, NULL);
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if ((*jniVm)->GetEnv(jniVm, (void**)env, JNI_VERSION_1_4) != JNI_OK)
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{
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WLog_ERR(TAG, "android_java_callback: failed to obtain current JNI environment");
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}
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return JNI_TRUE;
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}
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return JNI_FALSE;
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}
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/* attach current thread to JVM */
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void winpr_jni_detach_thread(void)
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{
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WINPR_ASSERT(jniVm);
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(*jniVm)->DetachCurrentThread(jniVm);
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}
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