mirror of
https://github.com/RGBCube/serenity
synced 2025-05-15 15:24:57 +00:00
bfd354492e
With this change, we now have ~1200 CellAllocators across both LibJS and LibWeb in a normal WebContent instance. This gives us a minimum heap size of 4.7 MiB in the scenario where we only have one cell allocated per type. Of course, in practice there will be many more of each type, so the effective overhead is quite a bit smaller than that in practice. I left a few types unconverted to this mechanism because I got tired of doing this. :^)
74 lines
2.8 KiB
C++
74 lines
2.8 KiB
C++
/*
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* Copyright (c) 2022-2023, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/ByteBuffer.h>
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#include <AK/Forward.h>
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#include <AK/NonnullRefPtr.h>
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#include <AK/Optional.h>
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#include <AK/Variant.h>
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#include <LibJS/Heap/GCPtr.h>
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#include <LibJS/Heap/Handle.h>
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#include <LibWeb/Fetch/Infrastructure/Task.h>
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#include <LibWeb/FileAPI/Blob.h>
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#include <LibWeb/Streams/ReadableStream.h>
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#include <LibWeb/WebIDL/Promise.h>
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namespace Web::Fetch::Infrastructure {
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// https://fetch.spec.whatwg.org/#concept-body
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class Body final : public JS::Cell {
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JS_CELL(Body, JS::Cell);
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JS_DECLARE_ALLOCATOR(Body);
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public:
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using SourceType = Variant<Empty, ByteBuffer, JS::Handle<FileAPI::Blob>>;
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// processBody must be an algorithm accepting a byte sequence.
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using ProcessBodyCallback = JS::SafeFunction<void(ByteBuffer)>;
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// processBodyError must be an algorithm optionally accepting an exception.
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using ProcessBodyErrorCallback = JS::SafeFunction<void(JS::GCPtr<WebIDL::DOMException>)>;
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[[nodiscard]] static JS::NonnullGCPtr<Body> create(JS::VM&, JS::NonnullGCPtr<Streams::ReadableStream>);
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[[nodiscard]] static JS::NonnullGCPtr<Body> create(JS::VM&, JS::NonnullGCPtr<Streams::ReadableStream>, SourceType, Optional<u64>);
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[[nodiscard]] JS::NonnullGCPtr<Streams::ReadableStream> stream() const { return *m_stream; }
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[[nodiscard]] SourceType const& source() const { return m_source; }
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[[nodiscard]] Optional<u64> const& length() const { return m_length; }
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[[nodiscard]] JS::NonnullGCPtr<Body> clone(JS::Realm&) const;
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WebIDL::ExceptionOr<void> fully_read(JS::Realm&, ProcessBodyCallback process_body, ProcessBodyErrorCallback process_body_error, TaskDestination task_destination) const;
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virtual void visit_edges(JS::Cell::Visitor&) override;
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private:
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explicit Body(JS::NonnullGCPtr<Streams::ReadableStream>);
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Body(JS::NonnullGCPtr<Streams::ReadableStream>, SourceType, Optional<u64>);
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// https://fetch.spec.whatwg.org/#concept-body-stream
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// A stream (a ReadableStream object).
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JS::NonnullGCPtr<Streams::ReadableStream> m_stream;
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// https://fetch.spec.whatwg.org/#concept-body-source
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// A source (null, a byte sequence, a Blob object, or a FormData object), initially null.
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SourceType m_source;
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// https://fetch.spec.whatwg.org/#concept-body-total-bytes
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// A length (null or an integer), initially null.
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Optional<u64> m_length;
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};
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// https://fetch.spec.whatwg.org/#body-with-type
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// A body with type is a tuple that consists of a body (a body) and a type (a header value or null).
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struct BodyWithType {
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JS::NonnullGCPtr<Body> body;
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Optional<ByteBuffer> type;
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};
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WebIDL::ExceptionOr<JS::NonnullGCPtr<Body>> byte_sequence_as_body(JS::Realm&, ReadonlyBytes);
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}
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