9efe9c6cdc
The patch adds 'rte_epoll_wait' and 'rte_epoll_ctl' for async event wakeup. It defines 'struct rte_epoll_event' as the event param. When the event fds add to a specified epoll instance, 'eptrs' will hold the rte_epoll_event object pointer. The 'op' uses the same enum as epoll_wait/ctl does. The epoll event support to carry a raw user data and to register a callback which is executed during wakeup. Signed-off-by: Cunming Liang <cunming.liang@intel.com>