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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

March 2016 Kernel Hackers Manual 3.2.