tree ef646db70f8949280029847159c45693eebc9005
parent ad2a08c7de9198246fec77c457d4c14f7bc4c1fb
author William A. Kennington III <wak@google.com> 1587087963 -0700
committer William A. Kennington III <wak@google.com> 1587143023 -0700

main: Fixup non-blocking reads

Sometimes, we can get the notification of a read that ends up returning
EAGAIN or EWOULDBLOCK. We need to handle this as a non-error case as
this is normal for non-blocking file descriptors.

We can also optimize the routine by using edge triggering and reading
out all available post codes until we get an EAGAIN.

Change-Id: I16585cf70620ae8cd54ef284a0fe357401957f42
Signed-off-by: William A. Kennington III <wak@google.com>