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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, loff_t * opos, size_t len, unsigned int flags);
ARGUMENTS¶
struct file * in
file to splice from
loff_t * ppos
input file offset
struct file * out
file to splice to
loff_t * opos
output file offset
size_t len
number of bytes to splice
unsigned int 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¶
| July 2017 | Kernel Hackers Manual 4.11 |