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#pragma once
#include <c10/macros/Macros.h>
#include <fstream>
#include <memory>
#include "caffe2/serialize/istream_adapter.h"
#include "caffe2/serialize/read_adapter_interface.h"
namespace caffe2 {
namespace serialize {
class TORCH_API FileAdapter final : public ReadAdapterInterface {
public:
C10_DISABLE_COPY_AND_ASSIGN(FileAdapter);
explicit FileAdapter(const std::string& file_name);
size_t size() const override;
size_t read(uint64_t pos, void* buf, size_t n, const char* what = "")
const override;
~FileAdapter() override;
private:
// An RAII Wrapper for a FILE pointer. Closes on destruction.
struct RAIIFile {
FILE* fp_;
explicit RAIIFile(const std::string& file_name);
~RAIIFile();
};
RAIIFile file_;
// The size of the opened file in bytes
uint64_t size_;
};
} // namespace serialize
} // namespace caffe2
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