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LibWeb: Fix GC leaks in Fetch::Infrastructure::Body::fully_read()

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By making this function accept the success and error steps as
HeapFunction rather than SafeFunction, we break a bunch of strong
GC cycles.
This commit is contained in:
Andreas Kling
2024-04-23 10:25:20 +02:00
parent 0c84508f87
commit 184368285c
9 changed files with 67 additions and 67 deletions
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8
Userland/Libraries/LibWeb/HTML/HTMLVideoElement.cpp
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@@ -178,7 +178,7 @@ WebIDL::ExceptionOr<void> HTMLVideoElement::determine_element_poster_frame(Optio
response = filtered_response.internal_response();
}
auto on_image_data_read = [this](auto image_data) mutable {
auto on_image_data_read = JS::create_heap_function(heap(), [this](ByteBuffer image_data) mutable {
m_fetch_controller = nullptr;
// 6. If an image is thus obtained, the poster frame is that image. Otherwise, there is no poster frame.
@@ -187,12 +187,12 @@ WebIDL::ExceptionOr<void> HTMLVideoElement::determine_element_poster_frame(Optio
return;
m_poster_frame = move(image.release_value().frames[0].bitmap);
};
});
VERIFY(response->body());
auto empty_algorithm = [](auto) {};
auto empty_algorithm = JS::create_heap_function(heap(), [](JS::GCPtr<WebIDL::DOMException>) {});
response->body()->fully_read(realm, move(on_image_data_read), move(empty_algorithm), JS::NonnullGCPtr { global }).release_value_but_fixme_should_propagate_errors();
response->body()->fully_read(realm, on_image_data_read, empty_algorithm, JS::NonnullGCPtr { global }).release_value_but_fixme_should_propagate_errors();
};
m_fetch_controller = TRY(Fetch::Fetching::fetch(realm, request, Fetch::Infrastructure::FetchAlgorithms::create(vm, move(fetch_algorithms_input))));