tree 47f39bffb02bb6efbf37537de41ba941baf328a9
parent 134672839667ca147cc818a58a675c01a6b4ec29
author Sam Leffler <sleffler@google.com> 1696004784 -0700
committer Sam Leffler <sleffler@google.com> 1696006561 -0700

mailbox_client: revise message receive for race-free use

The previous structure for receiving mailbox messages was racey--it
allowed a reply to be sent without a receive posted. Rewrite the api
to ensure this cannot happen.

Fix: 300251123

Change-Id: Ied0e697f71c88de10e53217ff2ee02af28263673