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/*
* Copyright (c) 2020 Samsung Electronics Co., Ltd. All Rights Reserved
*
* 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 "Model.h"
#include <fstream>
#include <vector>
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
namespace
{
class FileModel final : public luci::Model
{
public:
explicit FileModel(const std::string &filename) : _filename(filename) {}
public:
FileModel(const FileModel &) = delete;
FileModel(FileModel &&) = delete;
public:
const ::circle::Model *model(void) override
{
std::ifstream file(_filename, std::ios::binary | std::ios::in);
if (!file.good())
return nullptr;
file.unsetf(std::ios::skipws);
std::streampos fileSize;
file.seekg(0, std::ios::end);
fileSize = file.tellg();
file.seekg(0, std::ios::beg);
// reserve capacity
_data.reserve(fileSize);
// read the data
file.read(_data.data(), fileSize);
if (file.fail())
return nullptr;
return ::circle::GetModel(_data.data());
}
private:
const std::string _filename;
std::vector<char> _data;
};
} // namespace
namespace luci
{
std::unique_ptr<Model> load_model(const std::string &path)
{
return std::unique_ptr<Model>{new FileModel(path)};
}
} // namespace luci
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