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Move parallel_traversal from LayoutTaskData to LayoutTask.

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This commit is contained in:
Ms2ger 2015-11-06 13:37:51 +01:00
parent 49691c1638
commit dcea03c2b4
1 changed files with 20 additions and 23 deletions
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43
components/layout/layout_task.rs
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@ -113,9 +113,6 @@ pub struct LayoutTaskData {
/// Performs CSS selector matching and style resolution.
pub stylist: Box<Stylist>,
/// The workers that we use for parallel operation.
pub parallel_traversal: Option<WorkQueue<SharedLayoutContext, WorkQueueData>>,
/// Starts at zero, and increased by one every time a layout completes.
/// This can be used to easily check for invalid stale data.
pub generation: u32,
@ -225,6 +222,9 @@ pub struct LayoutTask {
pub canvas_layers_receiver: Receiver<(LayerId, IpcSender<CanvasMsg>)>,
pub canvas_layers_sender: Sender<(LayerId, IpcSender<CanvasMsg>)>,
/// The workers that we use for parallel operation.
parallel_traversal: Option<WorkQueue<SharedLayoutContext, WorkQueueData>>,
/// A mutex to allow for fast, read-only RPC of layout's internal data
/// structures, while still letting the LayoutTask modify them.
///
@ -434,6 +434,7 @@ impl LayoutTask {
font_cache_sender: font_cache_sender,
canvas_layers_receiver: canvas_layers_receiver,
canvas_layers_sender: canvas_layers_sender,
parallel_traversal: parallel_traversal,
rw_data: Arc::new(Mutex::new(
LayoutTaskData {
root_flow: None,
@ -442,7 +443,6 @@ impl LayoutTask {
viewport_size: Size2D::new(Au(0), Au(0)),
stacking_context: None,
stylist: stylist,
parallel_traversal: parallel_traversal,
generation: 0,
content_box_response: Rect::zero(),
content_boxes_response: Vec::new(),
@ -671,7 +671,7 @@ impl LayoutTask {
});
// ... as do each of the LayoutWorkers, if present.
if let Some(ref traversal) = rw_data.parallel_traversal {
if let Some(ref traversal) = self.parallel_traversal {
let sizes = traversal.heap_size_of_tls(heap_size_of_local_context);
for (i, size) in sizes.iter().enumerate() {
reports.push(Report {
@ -708,7 +708,7 @@ impl LayoutTask {
/// Enters a quiescent state in which no new messages will be processed until an `ExitNow` is
/// received. A pong is immediately sent on the given response channel.
fn prepare_to_exit<'a, 'b>(&self,
fn prepare_to_exit<'a, 'b>(&mut self,
response_chan: Sender<()>,
possibly_locked_rw_data: &mut RwData<'a, 'b>) {
response_chan.send(()).unwrap();
@ -736,13 +736,9 @@ impl LayoutTask {
/// Shuts down the layout task now. If there are any DOM nodes left, layout will now (safely)
/// crash.
fn exit_now<'a, 'b>(&self, possibly_locked_rw_data: &mut RwData<'a, 'b>) {
{
let mut rw_data = possibly_locked_rw_data.lock();
if let Some(ref mut traversal) = (&mut *rw_data).parallel_traversal {
traversal.shutdown()
}
possibly_locked_rw_data.block(rw_data);
fn exit_now<'a, 'b>(&mut self, _: &mut RwData<'a, 'b>) {
if let Some(ref mut traversal) = self.parallel_traversal {
traversal.shutdown()
}
let (response_chan, response_port) = ipc::channel().unwrap();
@ -997,15 +993,16 @@ impl LayoutTask {
}
}
fn compute_abs_pos_and_build_display_list<'a>(&'a self,
fn compute_abs_pos_and_build_display_list<'a>(&'a mut self,
data: &Reflow,
layout_root: &mut FlowRef,
shared_layout_context: &mut SharedLayoutContext,
rw_data: &mut LayoutTaskData) {
let writing_mode = flow::base(&**layout_root).writing_mode;
let (metadata, sender) = (self.profiler_metadata(), self.time_profiler_chan.clone());
profile(time::ProfilerCategory::LayoutDispListBuild,
self.profiler_metadata(),
self.time_profiler_chan.clone(),
metadata.clone(),
sender.clone(),
|| {
flow::mut_base(flow_ref::deref_mut(layout_root)).stacking_relative_position =
LogicalPoint::zero(writing_mode).to_physical(writing_mode,
@ -1014,11 +1011,11 @@ impl LayoutTask {
flow::mut_base(flow_ref::deref_mut(layout_root)).clip =
ClippingRegion::from_rect(&data.page_clip_rect);
match (&mut rw_data.parallel_traversal, opts::get().parallel_display_list_building) {
match (&mut self.parallel_traversal, opts::get().parallel_display_list_building) {
(&mut Some(ref mut traversal), true) => {
parallel::build_display_list_for_subtree(layout_root,
self.profiler_metadata(),
self.time_profiler_chan.clone(),
metadata,
sender,
shared_layout_context,
traversal);
}
@ -1183,8 +1180,7 @@ impl LayoutTask {
self.time_profiler_chan.clone(),
|| {
// Perform CSS selector matching and flow construction.
let rw_data = &mut *rw_data;
match rw_data.parallel_traversal {
match self.parallel_traversal {
None => {
sequential::traverse_dom_preorder(node, &shared_layout_context);
}
@ -1379,7 +1375,8 @@ impl LayoutTask {
self.profiler_metadata(),
self.time_profiler_chan.clone(),
|| {
match rw_data.parallel_traversal {
let profiler_metadata = self.profiler_metadata();
match self.parallel_traversal {
None => {
// Sequential mode.
LayoutTask::solve_constraints(&mut root_flow, &layout_context)
@ -1388,7 +1385,7 @@ impl LayoutTask {
// Parallel mode.
LayoutTask::solve_constraints_parallel(parallel,
&mut root_flow,
self.profiler_metadata(),
profiler_metadata,
self.time_profiler_chan.clone(),
&*layout_context);
}