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. :^)
46 lines
1.6 KiB
C++
46 lines
1.6 KiB
C++
/*
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* Copyright (c) 2022, 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 <LibJS/Forward.h>
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#include <LibJS/Heap/Cell.h>
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#include <LibJS/Heap/GCPtr.h>
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#include <LibJS/SafeFunction.h>
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#include <LibWeb/Fetch/Infrastructure/HTTP/Responses.h>
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namespace Web::Fetch::Fetching {
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// Non-standard wrapper around a possibly pending Infrastructure::Response.
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// This is needed to fit the asynchronous nature of ResourceLoader into the synchronous expectations
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// of the Fetch spec - we run 'in parallel' as a deferred_invoke(), which is still on the main thread;
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// therefore we use callbacks to run portions of the spec that require waiting for an HTTP load.
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class PendingResponse : public JS::Cell {
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JS_CELL(PendingResponse, JS::Cell);
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JS_DECLARE_ALLOCATOR(PendingResponse);
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public:
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using Callback = JS::SafeFunction<void(JS::NonnullGCPtr<Infrastructure::Response>)>;
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[[nodiscard]] static JS::NonnullGCPtr<PendingResponse> create(JS::VM&, JS::NonnullGCPtr<Infrastructure::Request>);
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[[nodiscard]] static JS::NonnullGCPtr<PendingResponse> create(JS::VM&, JS::NonnullGCPtr<Infrastructure::Request>, JS::NonnullGCPtr<Infrastructure::Response>);
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void when_loaded(Callback);
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void resolve(JS::NonnullGCPtr<Infrastructure::Response>);
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private:
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PendingResponse(JS::NonnullGCPtr<Infrastructure::Request>, JS::GCPtr<Infrastructure::Response> = {});
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virtual void visit_edges(JS::Cell::Visitor&) override;
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void run_callback();
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Callback m_callback;
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JS::NonnullGCPtr<Infrastructure::Request> m_request;
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JS::GCPtr<Infrastructure::Response> m_response;
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};
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}
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