tree 529855289873c6d20deab3d66a63e8eb0f67576f
parent b91c45b8e045b76844942bc24a5a7ba892e5b301
author Jeff Brown <jeffbrown@google.com> 1426037472 -0700
committer Jeff Brown <jeffbrown@google.com> 1426111236 -0700

Fixed subtle bugs related to file descriptor recycling.

Added code to protect against situations that may occur when a
Looper callback has the side-effect of closing the file descriptor that
it is watching before it returns.  This code pattern is very
convenient for implementation but it does expose issues in how
the list of callbacks is maintained.  In particular, we
need to watch out for file descriptors which have been reused.

This change may resolve previously unexplained ANRs associated with
log messages such as: "Error modifying epoll events for fd 44, errno=2"

Bug: 10349083
Change-Id: I20eedf6ffbdeda382653ca0104962505194741b0