tree 139edc8e9a88783bb2143e523411a115266673e0
parent 45ad76763c79b7925b3ddfe94f46519c1f0726ac
author Jeremy Kerr <jk@ozlabs.org> 1484616921 +0800
committer Patrick Williams <patrick@stwcx.xyz> 1484653210 -0600

socket-handler: only send if the queue is empty

If we're able to do a non-blocking send (but haven't yet received the
POLLOUT event), then we may end up sending data out-of-order.

This change only attempts a write if we have nothing in the queue.

Change-Id: Ie207ee10cdee27731dab30474bbdbafb51c31760
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>