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// Copyright 2022 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CORE_FXCRT_CFX_READ_ONLY_VECTOR_STREAM_H_
#define CORE_FXCRT_CFX_READ_ONLY_VECTOR_STREAM_H_
#include <stdint.h>
#include "core/fxcrt/data_vector.h"
#include "core/fxcrt/fixed_uninit_data_vector.h"
#include "core/fxcrt/fx_stream.h"
#include "core/fxcrt/retain_ptr.h"
class CFX_ReadOnlySpanStream;
class CFX_ReadOnlyVectorStream final : public IFX_SeekableReadStream {
public:
CONSTRUCT_VIA_MAKE_RETAIN;
// IFX_SeekableReadStream:
FX_FILESIZE GetSize() override;
bool ReadBlockAtOffset(pdfium::span<uint8_t> buffer,
FX_FILESIZE offset) override;
private:
explicit CFX_ReadOnlyVectorStream(DataVector<uint8_t> data);
explicit CFX_ReadOnlyVectorStream(FixedUninitDataVector<uint8_t> data);
~CFX_ReadOnlyVectorStream() override;
const DataVector<uint8_t> data_;
const FixedUninitDataVector<uint8_t> fixed_data_;
// Spans over either `data_` or `fixed_data_`.
const RetainPtr<CFX_ReadOnlySpanStream> stream_;
};
#endif // CORE_FXCRT_CFX_READ_ONLY_VECTOR_STREAM_H_