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. :^)
71 lines
2 KiB
C++
71 lines
2 KiB
C++
/*
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* Copyright (c) 2021, Andreas Kling <kling@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/RefCounted.h>
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#include <AK/Weakable.h>
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#include <LibWeb/DOM/EventTarget.h>
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#include <LibWeb/Forward.h>
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namespace Web::HTML {
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#define ENUMERATE_MESSAGE_PORT_EVENT_HANDLERS(E) \
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E(onmessage, HTML::EventNames::message) \
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E(onmessageerror, HTML::EventNames::messageerror)
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// https://html.spec.whatwg.org/multipage/web-messaging.html#structuredserializeoptions
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struct StructuredSerializeOptions {
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Vector<JS::Handle<JS::Object>> transfer;
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};
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// https://html.spec.whatwg.org/multipage/web-messaging.html#message-ports
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class MessagePort final : public DOM::EventTarget {
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WEB_PLATFORM_OBJECT(MessagePort, DOM::EventTarget);
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JS_DECLARE_ALLOCATOR(MessagePort);
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public:
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[[nodiscard]] static JS::NonnullGCPtr<MessagePort> create(JS::Realm&);
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virtual ~MessagePort() override;
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// https://html.spec.whatwg.org/multipage/web-messaging.html#entangle
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void entangle_with(MessagePort&);
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// https://html.spec.whatwg.org/multipage/web-messaging.html#dom-messageport-postmessage
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void post_message(JS::Value);
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void start();
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void close();
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#undef __ENUMERATE
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#define __ENUMERATE(attribute_name, event_name) \
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void set_##attribute_name(WebIDL::CallbackType*); \
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WebIDL::CallbackType* attribute_name();
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ENUMERATE_MESSAGE_PORT_EVENT_HANDLERS(__ENUMERATE)
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#undef __ENUMERATE
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private:
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explicit MessagePort(JS::Realm&);
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virtual void initialize(JS::Realm&) override;
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virtual void visit_edges(Cell::Visitor&) override;
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bool is_entangled() const { return m_remote_port; }
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void disentangle();
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// The HTML spec implies(!) that this is MessagePort.[[RemotePort]]
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JS::GCPtr<MessagePort> m_remote_port;
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// https://html.spec.whatwg.org/multipage/web-messaging.html#has-been-shipped
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bool m_has_been_shipped { false };
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// This is TransferableObject.[[Detached]]
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bool m_detached { false };
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};
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}
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