LibWeb: Add "parallel queue" and allow it as fetch task destination

Note that it's not actually executing tasks in parallel, it's still
throwing them on the HTML event loop task queue, each with its own
unique task source.

This makes our fetch implementation a lot more robust when HTTP caching
is enabled, and you can now click links on https://terminal.shop/
without hitting TODO assertions in fetch.
This commit is contained in:
Andreas Kling 2025-07-16 12:29:26 +02:00 committed by Andreas Kling
commit 03256a2543
Notes: github-actions[bot] 2025-07-16 22:14:47 +00:00
10 changed files with 65 additions and 44 deletions

View file

@ -63,7 +63,7 @@ void FetchedDataReceiver::on_data_received(ReadonlyBytes bytes)
// 3. Queue a fetch task to run the following steps, with fetchParamss task destination.
Infrastructure::queue_fetch_task(
m_fetch_params->controller(),
m_fetch_params->task_destination().get<GC::Ref<JS::Object>>(),
m_fetch_params->task_destination(),
GC::create_function(heap(), [this, bytes = MUST(ByteBuffer::copy(bytes))]() mutable {
HTML::TemporaryExecutionContext execution_context { m_stream->realm(), HTML::TemporaryExecutionContext::CallbacksEnabled::Yes };