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Implement browsing context discarding.

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This commit is contained in:
Alan Jeffrey 2016-11-30 16:54:12 -06:00
parent 143dfc879e
commit 7c2de62124
12 changed files with 196 additions and 160 deletions
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12
components/constellation/pipeline.rs
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@ -20,7 +20,7 @@ use net_traits::{IpcSend, ResourceThreads};
use net_traits::image_cache_thread::ImageCacheThread;
use profile_traits::mem as profile_mem;
use profile_traits::time;
use script_traits::{ConstellationControlMsg, InitialScriptState};
use script_traits::{ConstellationControlMsg, DiscardBrowsingContext, InitialScriptState};
use script_traits::{LayoutControlMsg, LayoutMsg, LoadData, MozBrowserEvent};
use script_traits::{NewLayoutInfo, SWManagerMsg, SWManagerSenders, ScriptMsg};
use script_traits::{ScriptThreadFactory, TimerEventRequest, WindowSizeData};
@ -328,7 +328,7 @@ impl Pipeline {
/// A normal exit of the pipeline, which waits for the compositor,
/// and delegates layout shutdown to the script thread.
pub fn exit(&self) {
pub fn exit(&self, discard_bc: DiscardBrowsingContext) {
debug!("pipeline {:?} exiting", self.id);
// The compositor wants to know when pipelines shut down too.
@ -345,15 +345,17 @@ impl Pipeline {
// Script thread handles shutting down layout, and layout handles shutting down the painter.
// For now, if the script thread has failed, we give up on clean shutdown.
if let Err(e) = self.event_loop.send(ConstellationControlMsg::ExitPipeline(self.id)) {
let msg = ConstellationControlMsg::ExitPipeline(self.id, discard_bc);
if let Err(e) = self.event_loop.send(msg) {
warn!("Sending script exit message failed ({}).", e);
}
}
/// A forced exit of the shutdown, which does not wait for the compositor,
/// or for the script thread to shut down layout.
pub fn force_exit(&self) {
if let Err(e) = self.event_loop.send(ConstellationControlMsg::ExitPipeline(self.id)) {
pub fn force_exit(&self, discard_bc: DiscardBrowsingContext) {
let msg = ConstellationControlMsg::ExitPipeline(self.id, discard_bc);
if let Err(e) = self.event_loop.send(msg) {
warn!("Sending script exit message failed ({}).", e);
}
if let Err(e) = self.layout_chan.send(LayoutControlMsg::ExitNow) {