1822915 - [wpt-sync] Sync PR 39040 - Scheduling APIs: Implement scheduler.yield() prototype (part 2: inherit)

Status: RESOLVED FIXED

(Testing :: web-platform-tests, task, P4)

Description

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Sync web-platform-tests PR 39040 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/39040
Details from upstream follow.

Scott Haseley <[e-mail]> wrote:

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/4326152
WPT-Export-Revision: 62ad89006dfd7d4d46a65452a2a9a432c1aa2bbf

Comment 1

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Test result changes from PR not available.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/2ed7c7c302cc
[wpt PR 39040] - Scheduling APIs: Implement scheduler.yield() prototype (part 2: inherit), a=testonly

Comment 3

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Test result changes from PR not available.

Comment 4

[Narcis Beleuzu [:NarcisB]]

https://hg.mozilla.org/mozilla-central/rev/2ed7c7c302cc