io_stream.h

// Copyright (c) 2009-2025 Avanquest Software. All rights reserved.
 
#ifndef PDFSDK_CXX_PDF_IO_STREAM_H_INCLUDED_
#define PDFSDK_CXX_PDF_IO_STREAM_H_INCLUDED_
 
#include <cstddef>
#include <cstdint>
 
#include <pdfsdk/cxx/bytes.h>
 
namespace PDF {

class IDataSource {
public:
    virtual ~IDataSource() = default;

    virtual size_t ReadAt(int64_t pos, std::span<Byte> buffer) = 0;

    virtual int64_t GetSize() = 0;
};

class IWriteSink {
public:
    virtual ~IWriteSink() = default;

    virtual size_t Write(std::span<const Byte> buffer) = 0;
};
 
}  // namespace PDF
 
#endif  // PDFSDK_CXX_PDF_IO_STREAM_H_INCLUDED_