mirror of https://github.com/octoleo/restic.git
17 lines
300 B
Go
17 lines
300 B
Go
package fs
|
|
|
|
import (
|
|
"os"
|
|
|
|
"golang.org/x/sys/unix"
|
|
)
|
|
|
|
func PreallocateFile(wr *os.File, size int64) error {
|
|
if size <= 0 {
|
|
return nil
|
|
}
|
|
// int fallocate(int fd, int mode, off_t offset, off_t len)
|
|
// use mode = 0 to also change the file size
|
|
return unix.Fallocate(int(wr.Fd()), 0, 0, size)
|
|
}
|