| commit | c19eb6a201cf1dd04915ef9a2de24b779532df9d | [log] [tgz] |
|---|---|---|
| author | Scott Haseley <shaseley@chromium.org> | Fri Mar 17 21:08:24 2023 |
| committer | Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> | Fri Mar 17 21:23:53 2023 |
| tree | d5025a81cd871911480ce77519a9733e2d945b42 | |
| parent | c2a197e2cbb2afc7cc7849f926884bb1ffdd3109 [diff] |
Scheduling APIs: Implement scheduler.yield() prototype (part 2: inherit)
This CL implements the scheduler.yield() "inherit" option:
- Signal selection: GetTaskSignalFromOptions() is updated to take
inheritance into account. If either the signal or priority options
are to inherit, the inherited signal is retrieved from V8 and used
in the computation:
- signal: "inherit", priority: unset - use the inherited signal
if there is one, otherwise default priority.
- signal: "inherit", priority: fixed - create a composite signal
from the inherited signal and fixed priority. If the inherited
signal is null, just use a fixed priority signal.
- signal: unset, priority: "inherit" - if there's nothing to
inherit use the default priority; if the inherited signal has
fixed priority and can't abort, use that; otherwise create a
new composite signal.
- DOMTask is updated to support continuation, passing its signal
when creating a task scope (main thread). For workers, DOMTask
will set the continuation preserved embedder data manually before
running the task.
- WPT tests are added and modified to cover the "inherit" option.
Bug: 979020
Change-Id: Ia9776b9292d70636e2b1eea191e9c09b1809fa84
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4326152
Commit-Queue: Scott Haseley <shaseley@chromium.org>
Reviewed-by: Nate Chapin <japhet@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1118868}
The web-platform-tests Project is a cross-browser test suite for the Web-platform stack. Writing tests in a way that allows them to be run in all browsers gives browser projects confidence that they are shipping software that is compatible with other implementations, and that later implementations will be compatible with their implementations. This in turn gives Web authors/developers confidence that they can actually rely on the Web platform to deliver on the promise of working across browsers and devices without needing extra layers of abstraction to paper over the gaps left by specification editors and implementors.
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