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compositor: Unify the cross process and in-process API (#36443)

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Because there used to be two traits exposing messages to the compositor,
there were two kinds of messages that could be sent:

1. In-process messages from the `Constellation`
2. Cross-process messages from other parts of Servo

Now these two types of messages can be unified into one type. With that
done the compositor can simply keep a single `IpcReceiver` for all
messages, instead of having to set up a route for the cross-process
messsages. This decreases overhead of cross proceses messages a bit, but
more importantly solves an issue where Servo would rely on the
compositor's cross-process message route after the `Constellation` had
called `ROUTER.shutdown()`.

This is part of #36442.

Testing: This is covered by existing WPT tests.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
This commit is contained in:
Martin Robinson 2025-04-12 23:38:22 +02:00 • committed by GitHub
parent 5f0f457ac3
commit 4c55104b36
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8 changed files with 95 additions and 215 deletions
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16
components/compositing/tracing.rs
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@ -42,7 +42,21 @@ mod from_constellation {
Self::LoadComplete(..) => target!("LoadComplete"),
Self::WebDriverMouseButtonEvent(..) => target!("WebDriverMouseButtonEvent"),
Self::WebDriverMouseMoveEvent(..) => target!("WebDriverMouseMoveEvent"),
Self::CrossProcess(_) => target!("CrossProcess"),
Self::SendInitialTransaction(..) => target!("SendInitialTransaction"),
Self::SendScrollNode(..) => target!("SendScrollNode"),
Self::SendDisplayList { .. } => todo!("SendDisplayList"),
Self::HitTest(..) => target!("HitTest"),
Self::GenerateImageKey(..) => target!("GenerateImageKey"),
Self::AddImage(..) => target!("AddImage"),
Self::UpdateImages(..) => target!("UpdateImages"),
Self::GenerateFontKeys(..) => target!("GenerateFontKeys"),
Self::AddFont(..) => target!("AddFont"),
Self::AddSystemFont(..) => target!("AddSystemFont"),
Self::AddFontInstance(..) => target!("AddFontInstance"),
Self::RemoveFonts(..) => target!("RemoveFonts"),
Self::GetClientWindowRect(..) => target!("GetClientWindowRect"),
Self::GetScreenSize(..) => target!("GetScreenSize"),
Self::GetAvailableScreenSize(..) => target!("GetAvailableScreenSize"),
}
}
}