This is needed for Perfetto which sometimes chooses to bypass the task
queue if the task queue uses a given thread to run tasks.
Bug: v8:8339
Change-Id: Iecec5e7883d174e4b63495ecdadfb96105e4505c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1588471
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Auto-Submit: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61316}
This was unimplemented but is needed for Perfetto which posts delayed
tasks on worker threads e.g. drain the trace buffer into a file every x
seconds.
This is implemented by adding a second queue which holds the delayed
tasks in chronological order of 'next-to-execute'. We use an
std::multimap for the queue so that we can easily get the next delayed
task with begin().
The implementation will move delayed tasks into the main task queue
when their deadline expires.
Drive-by cleanup of the runner destructor which can just use = default.
Bug: v8:8339
Change-Id: I3629c5d6e15ced2fc47eb1b7519a2dbbf8461fce
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1521114
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60320}
