bb213d3150
<!-- Please describe your changes on the following line: --> This PR implements the current draft Houdini Worklets specification (https://drafts.css-houdini.org/worklets/). The implementation is intended to provide a responsive environment for worklet execution, and in particular to ensure that the primary worklet executor does not garbage collect, and does not block loading module code. The implementation does this by providing a thread pool, and performing GC and module loading in a backup thread, not in the primary thread. --- <!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: --> - [x] `./mach build -d` does not report any errors - [x] `./mach test-tidy` does not report any errors - [x] These changes fix #16206 - [x] There are tests for these changes <!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.--> <!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. --> Source-Repo: https://github.com/servo/servo Source-Revision: ac99a48aeaa184d3acdb39d249636a140c4b7393
67 lines
2.4 KiB
Rust
67 lines
2.4 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use dom::bindings::cell::DOMRefCell;
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use dom::bindings::codegen::Bindings::TestWorkletGlobalScopeBinding;
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use dom::bindings::codegen::Bindings::TestWorkletGlobalScopeBinding::TestWorkletGlobalScopeMethods;
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use dom::bindings::js::Root;
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use dom::bindings::str::DOMString;
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use dom::workletglobalscope::WorkletGlobalScope;
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use dom::workletglobalscope::WorkletGlobalScopeInit;
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use dom_struct::dom_struct;
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use js::rust::Runtime;
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use msg::constellation_msg::PipelineId;
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use servo_url::ServoUrl;
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use std::collections::HashMap;
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use std::sync::mpsc::Sender;
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// check-tidy: no specs after this line
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#[dom_struct]
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pub struct TestWorkletGlobalScope {
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// The worklet global for this object
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worklet_global: WorkletGlobalScope,
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// The key/value pairs
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lookup_table: DOMRefCell<HashMap<String, String>>,
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}
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impl TestWorkletGlobalScope {
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#[allow(unsafe_code)]
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pub fn new(runtime: &Runtime,
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pipeline_id: PipelineId,
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base_url: ServoUrl,
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init: &WorkletGlobalScopeInit)
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-> Root<TestWorkletGlobalScope>
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{
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debug!("Creating test worklet global scope for pipeline {}.", pipeline_id);
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let global = box TestWorkletGlobalScope {
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worklet_global: WorkletGlobalScope::new_inherited(pipeline_id, base_url, init),
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lookup_table: Default::default(),
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};
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unsafe { TestWorkletGlobalScopeBinding::Wrap(runtime.cx(), global) }
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}
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pub fn perform_a_worklet_task(&self, task: TestWorkletTask) {
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match task {
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TestWorkletTask::Lookup(key, sender) => {
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debug!("Looking up key {}.", key);
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let result = self.lookup_table.borrow().get(&key).cloned();
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let _ = sender.send(result);
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}
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}
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}
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}
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impl TestWorkletGlobalScopeMethods for TestWorkletGlobalScope {
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fn RegisterKeyValue(&self, key: DOMString, value: DOMString) {
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debug!("Registering test worklet key/value {}/{}.", key, value);
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self.lookup_table.borrow_mut().insert(String::from(key), String::from(value));
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}
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}
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/// Tasks which can be performed by test worklets.
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pub enum TestWorkletTask {
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Lookup(String, Sender<Option<String>>),
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}
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