datagram_poll (9) Linux Manual Page
datagram_poll – generic datagram poll
Synopsis
unsigned int datagram_poll(struct file *file, struct socket *sock, poll_table *wait);Arguments
file
-
- file struct
sock
- socket
wait
- poll table
Description
Datagram poll: Again totally generic. This also handles sequenced packet sockets providing the socket receive queue is only ever holding data ready to receive.
Note
when you _don’t_ use this routine for this protocol, and you use a different write policy from sock_writeable then please supply your own write_space callback.