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LibWeb: Schedule HTML::EventLoop processing when there are queued tasks

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Since we can't simply give HTML::EventLoop control of the whole program,
we have to integrate with Core::EventLoop.

We do this by having a single-shot 0ms Core::Timer that we start when
a task is added to the queue, and restart after processing the queue and
there are still tasks in the queue.
This commit is contained in:
Andreas Kling
2021-09-09 00:38:43 +02:00
parent e0c7f8dafa
commit 909e522cf7
Notes: sideshowbarker 2024-07-18 04:24:27 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/909e522cf70
5 changed files with 35 additions and 2 deletions
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4
Userland/Libraries/LibWeb/HTML/EventLoop/TaskQueue.h
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@@ -13,7 +13,7 @@ namespace Web::HTML {
class TaskQueue {
public:
TaskQueue();
explicit TaskQueue(HTML::EventLoop&);
~TaskQueue();
bool is_empty() const { return m_tasks.is_empty(); }
@@ -22,6 +22,8 @@ public:
OwnPtr<HTML::Task> take_first_runnable() { return m_tasks.dequeue(); }
private:
HTML::EventLoop& m_event_loop;
Queue<NonnullOwnPtr<HTML::Task>> m_tasks;
};