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// Copyright (c) 2022 Intel Corporation
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
#ifndef __MFX_LOADER_UTILS_H__
#define __MFX_LOADER_UTILS_H__
#include "mfx_config.h"
#include <dlfcn.h>
#include <string.h>
#include <string>
inline std::string GetSelfModuleFullPath()
{
Dl_info dl_info;
dladdr((void*)GetSelfModuleFullPath, &dl_info);
return std::string(dl_info.dli_fname);
}
inline std::string GenerateEnctoolPath(const char* fileName)
{
std::string wdir;
std::string path = GetSelfModuleFullPath();
wdir = path.substr(0, path.find_last_of('/') + 1);
wdir += "libmfx-gen/"; // enctools.so are inside dir "libmfx-gen" in the path of RT in linux
std::string fileNameStr(fileName);
std::string enctoolPath = wdir + fileNameStr;
return enctoolPath;
}
inline void* LoadModule(const char* modulePath)
{
void* hModule = nullptr;
hModule = dlopen(modulePath, RTLD_LAZY);
return hModule;
}
inline void UnLoadModule(void* hModule)
{
if (hModule)
{
dlclose(hModule);
}
}
inline void* LoadDependency(const char* dependencyFileName)
{
std::string dllPath = GenerateEnctoolPath(dependencyFileName);
return LoadModule(dllPath.c_str());
}
inline void* GetModuleFuncAddress(void* hModule, const char* funcName)
{
return dlsym(hModule, funcName);
}
#endif
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