#include "il2cpp-config.h"

#include "MetadataLoader.h"

#include "os/File.h"

#include "os/Mutex.h"

#include "utils/MemoryMappedFile.h"

#include "utils/PathUtils.h"

#include "utils/Runtime.h"

#include "utils/Logging.h"

void* il2cpp::vm::MetadataLoader::LoadMetadataFile(const char* fileName)

{

std::string resourcesDirectory = utils::PathUtils::Combine(utils::Runtime::GetDataDir(), utils::StringView<char>("Metadata"));

std::string resourceFilePath = utils::PathUtils::Combine(resourcesDirectory, utils::StringView<char>(fileName, strlen(fileName)));

int error = 0;

os::FileHandle* handle = os::File::Open(resourceFilePath, kFileModeOpen, kFileAccessRead, kFileShareRead, kFileOptionsNone, &error);

if (error != 0)

{

utils::Logging::Write("ERROR: Could not open %s", resourceFilePath.c_str());

return NULL;

}

void* fileBuffer = utils::MemoryMappedFile::Map(handle);

os::File::Close(handle, &error);

if (error != 0)

{

utils::MemoryMappedFile::Unmap(fileBuffer);

fileBuffer = NULL;

return NULL;

}

return fileBuffer;

}

void il2cpp::vm::MetadataLoader::UnloadMetadataFile(void* fileBuffer)

{

bool success = il2cpp::utils::MemoryMappedFile::Unmap(fileBuffer);

NO_UNUSED_WARNING(success);

IL2CPP_ASSERT(success);

}