Static cros_async::blocking::cancellable_pool::EXECUTOR

static EXECUTOR: LazyLock<CancellableBlockingPool>

Global executor.

This is convenient, though not preferred. Pros/cons:

• It avoids passing executor all the way to each call sites.
• The call site can assume that executor will never shutdown.
• Provides similar functionality as async_task with a few improvements around ability to cancel.

• Globals are harder to reason about.