tree c1fb558640d079d3ec8d08183659f4853acd00eb
parent 0db800773e6b690a95a11ab4a79d77337f21bf12
author James Feist <james.feist@linux.intel.com> 1531762208 -0700
committer James Feist <james.feist@linux.intel.com> 1532448673 -0700

Add return code checking for process discard

From the docs, sd_bus_process should be called until no progress
can be made. When progress is made, a positive integer is returned.
Add read_immediate to bypass setting up the fd watch when process_discard
returns a positive value.

Tested-by: Had C++ Mapper and Entity-Manager call each-other at the same
           time and noticed no longer timed out.

Change-Id: Icab11743c6c5e1486b353fce1d5e3898f2d3f533
Signed-off-by: James Feist <james.feist@linux.intel.com>