
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. :^)
68 lines
2.3 KiB
C++
68 lines
2.3 KiB
C++
/*
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* Copyright (c) 2022-2023, Kenneth Myhra <kennethmyhra@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/NonnullRefPtr.h>
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#include <AK/Vector.h>
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#include <LibWeb/Bindings/BlobPrototype.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::FileAPI {
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using BlobPart = Variant<JS::Handle<JS::Object>, JS::Handle<Blob>, String>;
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struct BlobPropertyBag {
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String type = String {};
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Bindings::EndingType endings;
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};
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[[nodiscard]] ErrorOr<String> convert_line_endings_to_native(StringView string);
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[[nodiscard]] ErrorOr<ByteBuffer> process_blob_parts(Vector<BlobPart> const& blob_parts, Optional<BlobPropertyBag> const& options = {});
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[[nodiscard]] bool is_basic_latin(StringView view);
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class Blob : public Bindings::PlatformObject {
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WEB_PLATFORM_OBJECT(Blob, Bindings::PlatformObject);
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JS_DECLARE_ALLOCATOR(Blob);
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public:
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virtual ~Blob() override;
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[[nodiscard]] static JS::NonnullGCPtr<Blob> create(JS::Realm&, ByteBuffer, String type);
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[[nodiscard]] static JS::NonnullGCPtr<Blob> create(JS::Realm&, Optional<Vector<BlobPart>> const& blob_parts = {}, Optional<BlobPropertyBag> const& options = {});
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static WebIDL::ExceptionOr<JS::NonnullGCPtr<Blob>> construct_impl(JS::Realm&, Optional<Vector<BlobPart>> const& blob_parts = {}, Optional<BlobPropertyBag> const& options = {});
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// https://w3c.github.io/FileAPI/#dfn-size
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u64 size() const { return m_byte_buffer.size(); }
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// https://w3c.github.io/FileAPI/#dfn-type
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String const& type() const { return m_type; }
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WebIDL::ExceptionOr<JS::NonnullGCPtr<Blob>> slice(Optional<i64> start = {}, Optional<i64> end = {}, Optional<String> const& content_type = {});
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WebIDL::ExceptionOr<JS::NonnullGCPtr<Streams::ReadableStream>> stream();
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WebIDL::ExceptionOr<JS::NonnullGCPtr<JS::Promise>> text();
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WebIDL::ExceptionOr<JS::NonnullGCPtr<JS::Promise>> array_buffer();
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ReadonlyBytes bytes() const { return m_byte_buffer.bytes(); }
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WebIDL::ExceptionOr<JS::NonnullGCPtr<Streams::ReadableStream>> get_stream();
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protected:
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Blob(JS::Realm&, ByteBuffer, String type);
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Blob(JS::Realm&, ByteBuffer);
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virtual void initialize(JS::Realm&) override;
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private:
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explicit Blob(JS::Realm&);
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ByteBuffer m_byte_buffer {};
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String m_type {};
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};
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}
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