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LibWeb: Make EventLoop, TaskQueue, and Task GC-allocated

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...and use HeapFunction instead of SafeFunction for task steps.

Since there is only one EventLoop per process, it lives as a global
handle in the VM custom data.

This makes it much easier to reason about lifetimes of tasks, task
steps, and random stuff captured by them.
This commit is contained in:
Andreas Kling
2024-04-04 12:06:50 +02:00
parent 5485e2a940
commit 2ef37c0b06
20 changed files with 167 additions and 124 deletions
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2
Userland/Libraries/LibWeb/HTML/Scripting/Environments.h
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@@ -122,7 +122,7 @@ private:
NonnullOwnPtr<JS::ExecutionContext> m_realm_execution_context;
JS::GCPtr<ModuleMap> m_module_map;
EventLoop* m_responsible_event_loop { nullptr };
JS::GCPtr<EventLoop> m_responsible_event_loop;
// https://html.spec.whatwg.org/multipage/webappapis.html#outstanding-rejected-promises-weak-set
// The outstanding rejected promises weak set must not create strong references to any of its members, and implementations are free to limit its size, e.g. by removing old entries from it when new ones are added.