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30abadcff9
This class is similar to BufferStream because it is possible to both
read and write to it. However, it differs in the following ways:
- DuplexMemoryStream keeps a history of 64KiB and discards the rest,
BufferStream always keeps everything around.
- DuplexMemoryStream tracks reading and writing seperately, the
following is valid:
DuplexMemoryStream stream;
stream << 42;
int value;
stream >> value;
For BufferStream it would read:
BufferStream stream;
stream << 42;
int value;
stream.seek(0);
stream >> value;
In the future I would like to replace all usages of BufferStream with
InputMemoryStream, OutputMemoryStream (doesn't exist yet) and
DuplexMemoryStream. For now I just add DuplexMemoryStream though.
160 lines
3.6 KiB
C++
160 lines
3.6 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/Types.h>
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namespace AK {
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class Bitmap;
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class BufferStream;
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class ByteBuffer;
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class DebugLogStream;
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class IPv4Address;
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class JsonArray;
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class JsonObject;
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class JsonValue;
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class LogStream;
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class SharedBuffer;
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class String;
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class StringBuilder;
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class StringImpl;
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class StringView;
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class URL;
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class FlyString;
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class Utf32View;
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class Utf8View;
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class InputStream;
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class InputMemoryStream;
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class DuplexMemoryStream;
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template<typename T>
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class Span;
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using ReadonlyBytes = Span<const u8>;
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using Bytes = Span<u8>;
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template<typename T>
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class Atomic;
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template<typename T>
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class SinglyLinkedList;
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template<typename T>
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class DoublyLinkedList;
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template<typename T>
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class InlineLinkedList;
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template<typename T, size_t capacity>
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class CircularQueue;
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template<typename T>
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struct Traits;
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template<typename T, typename = Traits<T>>
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class HashTable;
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template<typename K, typename V, typename = Traits<K>>
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class HashMap;
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template<typename T>
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class Badge;
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template<typename T>
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class FixedArray;
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template<typename>
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class Function;
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template<typename Out, typename... In>
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class Function<Out(In...)>;
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template<typename T>
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class NonnullRefPtr;
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template<typename T>
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class NonnullOwnPtr;
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template<typename T>
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class Optional;
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template<typename T>
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class RefPtr;
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template<typename T>
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class OwnPtr;
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template<typename T>
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class WeakPtr;
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template<typename T, size_t inline_capacity = 0>
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class Vector;
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}
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using AK::Atomic;
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using AK::Badge;
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using AK::Bitmap;
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using AK::BufferStream;
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using AK::ByteBuffer;
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using AK::Bytes;
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using AK::CircularQueue;
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using AK::DebugLogStream;
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using AK::DoublyLinkedList;
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using AK::DuplexMemoryStream;
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using AK::FixedArray;
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using AK::FlyString;
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using AK::Function;
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using AK::HashMap;
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using AK::HashTable;
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using AK::InlineLinkedList;
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using AK::InputMemoryStream;
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using AK::InputStream;
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using AK::IPv4Address;
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using AK::JsonArray;
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using AK::JsonObject;
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using AK::JsonValue;
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using AK::LogStream;
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using AK::NonnullOwnPtr;
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using AK::NonnullRefPtr;
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using AK::Optional;
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using AK::OwnPtr;
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using AK::ReadonlyBytes;
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using AK::RefPtr;
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using AK::SharedBuffer;
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using AK::SinglyLinkedList;
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using AK::Span;
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using AK::String;
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using AK::StringBuilder;
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using AK::StringImpl;
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using AK::StringView;
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using AK::Traits;
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using AK::URL;
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using AK::Utf32View;
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using AK::Utf8View;
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using AK::Vector;
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