tree 5dfe31d9b01b53629ceff913a6e022523701a005
parent f2a15e8742cf33e37e6c96f4731c298c6749bb68
author Steven Moreland <smoreland@google.com> 1582079618 -0800
committer Steven Moreland <smoreland@google.com> 1582680330 +0000

Disallow shrinking threadpool size once started.

If a larger threadpool is started, and concurrent binder transactions
are cause these threads to actually be started, and then we shrink
the threadpool, these extra threads won't be shut down. So, when we
detect that this race may happen, we abort with an error.

It's best practice to setup a threadpool at process startup time.

Bug: 147699567
Test: TH
Change-Id: I12d2e6e6b1ebf92c2b2abbfccffb011c4248d8ec