Splice data from a pipe to a socket
ssize_t generic_splice_sendpage(struct pipe_inode_info * pipe, struct file * out, loff_t * ppos, size_t len, unsigned int flags);
pipe
pipe to splice from
out
socket to write to
ppos
position in out
len
number of bytes to splice
flags
splice modifier flags
Will send len bytes from the pipe to a network socket. No data copying is involved.