Purpose: Prepare for setting priorities for different
kernel based sock implementations.
The g_net_impls list is maintained in decreasing order
according to the priority of each sock implementation.
For examaple, if there are 3 sock implementations, i.e.,
posix (priority = 0), vpp (priority = 1), sock_ut (priority =2),
then the list will be maintained as:
sock_ut -> vpp -> posix.
Then if users use spdk_sock_open/listen with impl_name as NULL,
then the order to try is: sock_ut, vpp, then posix
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
Change-Id: I43899de5bac14751ab060a11eb814cd7a0a83cc6
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/479488
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
d1a8a7bee1