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