SK_WAIT_DATA(9) Linux Networking SK_WAIT_DATA(9)NAMEsk_wait_data - wait for data to arrive at sk_receive_queue
SYNOPSIS
int sk_wait_data(struct sock * sk, long * timeo);
ARGUMENTS
sk
sock to wait on
timeo
for how long
DESCRIPTION
Now socket state including sk->sk_err is changed only under lock, hence
we may omit checks after joining wait queue. We check receive queue
before schedule only as optimization; it is very likely that
release_sock added new data.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 SK_WAIT_DATA(9)