ladybird/AK/ConstrainedStream.h

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/*
* Copyright (c) 2021, Ali Mohammad Pur <mpfard@serenityos.org>
* Copyright (c) 2023, Tim Schumacher <timschumi@gmx.de>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/MaybeOwned.h>
#include <AK/Stream.h>
namespace AK {
class ConstrainedStream : public Stream {
public:
ConstrainedStream(MaybeOwned<Stream>, u64 limit);
virtual ErrorOr<Bytes> read_some(Bytes) override;
virtual ErrorOr<void> discard(size_t discarded_bytes) override;
virtual ErrorOr<size_t> write_some(ReadonlyBytes) override;
virtual bool is_eof() const override;
virtual bool is_open() const override;
virtual void close() override;
u64 remaining() const { return m_limit; }
private:
MaybeOwned<Stream> m_stream;
u64 m_limit;
};
}