DO_SPLICE_DIRECT(9) splice API DO_SPLICE_DIRECT(9)
NAME
do_splice_direct - splices data directly between two files
SYNOPSIS
long do_splice_direct(struct file * in, loff_t * ppos, struct file * out, size_t len, unsigned int flags);
ARGUMENTS
in
file to splice from
ppos
input file offset
out
file to splice to
len
number of bytes to splice
flags
splice modifier flags
DESCRIPTION
For use by do_sendfile. splice can easily emulate sendfile, but doing it in the application would incur an extra system call (splice in +
splice out, as compared to just sendfile). So this helper can splice directly through a process-private pipe.
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 DO_SPLICE_DIRECT(9)
