tree e0545be2df5581450287159ec330ba64edcf5a26
parent 758f97e46df203659c46941dc4483f7b369a5640
author Jeff Sharkey <jsharkey@android.com> 1382721738 -0700
committer Jeff Sharkey <jsharkey@android.com> 1382726075 -0700

Skip writing PFD status when comm is closed.

If the remote side of PFD has already written a status message, then
they've also closed their end of the comm FD, and we're going to
EPIPE if we try sending our own status.  So, skip writing status if
a remote status is present.

Only one end of the openFile() comm socket needs to be blocking,
otherwise detachFd() would end up blocking forever.

Bug: 11385467
Change-Id: I346d40cc1ca4a6683cec4c2d2b7db2b32ac94a55