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Fix for race condition causing reftests to hang under load.

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If the root layer has a zero size rectangle, it will never be
painted, so assume the pipeline is idle in that case.

Re-enable two reftests that were disabled due to this issue.
This commit is contained in:
Glenn Watson 2015-03-16 15:04:00 +10:00
parent 7ca3c8d6e3
commit 591b10aa58
2 changed files with 15 additions and 6 deletions
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16
components/compositing/compositor.rs
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@ -15,7 +15,7 @@ use std::cmp;
use std::mem;
use geom::point::{Point2D, TypedPoint2D};
use geom::rect::{Rect, TypedRect};
use geom::size::TypedSize2D;
use geom::size::{Size2D, TypedSize2D};
use geom::scale_factor::ScaleFactor;
use gfx::color;
use gfx::paint_task::Msg as PaintMsg;
@ -450,8 +450,18 @@ impl<Window: WindowMethods> IOCompositor<Window> {
return false;
}
return self.pipeline_details.values().all(|ref details| {
details.paint_state == PaintState::Idle
});
// If a pipeline exists and has a root layer that has
// zero size, it will never be painted. In this case,
// consider it as idle to avoid hangs in reftests.
if let Some(ref pipeline) = details.pipeline {
if let Some(root_layer) = self.find_pipeline_root_layer(pipeline.id) {
if root_layer.bounds.borrow().size == Size2D::zero() {
return true;
}
}
}
details.paint_state == PaintState::Idle
});
}
fn has_paint_msg_tracking(&self) -> bool {