tree a8fab7c4ec37babeea2a776f551a6706fa328c5f
parent de1ad9de0c1de1507588d7a3b9c43b6ca764262e
author Jiwen 'Steve' Cai <jwcai@google.com> 1500669235 -0700
committer Jiwen 'Steve' Cai <jwcai@google.com> 1500673126 -0700

Add dvrReadBufferQueueGetEventFd

We need to expose the read queue's event fd, so that a caller can epoll
on a set of queues' fd for efficient buffer acquisition.

Bug: 62359843
Test: dvrapi-test

Change-Id: I1b9271afed9ee6c6675551402cd3f5a66e98ebe2