Files
FlatLaf/flatlaf-natives/flatlaf-natives-linux/src/main/cpp/JNIUtils.cpp

55 lines
1.5 KiB
C++

/*
* Copyright 2024 FormDev Software GmbH
*
* 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
*
* https://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.
*/
// avoid inlining of printf()
#define _NO_CRT_STDIO_INLINE
#include <dlfcn.h>
#include "JNIUtils.h"
/**
* @author Karl Tauber
*/
//---- class AutoReleaseStringUTF8 --------------------------------------------
AutoReleaseStringUTF8::AutoReleaseStringUTF8( JNIEnv* _env, jstring _javaString ) {
env = _env;
javaString = _javaString;
chars = (javaString != NULL) ? env->GetStringUTFChars( javaString, NULL ) : NULL;
}
AutoReleaseStringUTF8::~AutoReleaseStringUTF8() {
if( chars != NULL )
env->ReleaseStringUTFChars( javaString, chars );
}
//---- JNI methods ------------------------------------------------------------
extern "C"
JNIEXPORT jboolean JNICALL Java_com_formdev_flatlaf_ui_FlatNativeLinuxLibrary_isLibAvailable
( JNIEnv* env, jclass cls, jstring libname )
{
AutoReleaseStringUTF8 clibname( env, libname );
void* lib = dlopen( clibname, RTLD_LAZY );
if( lib == NULL )
return false;
dlclose( lib );
return true;
}