The multithread testing framework is well positioned
for the QoS testing. As QoS will initiate poller for
the rate limiting. Added the related poller functions
and proper poll_thread handling here.
Change-Id: I253a72d3f85af381703dde4e4d0d7366fe682d78
Signed-off-by: GangCao <gang.cao@intel.com>
Reviewed-on: https://review.gerrithub.io/393012
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>