//go:build linux

package main

import "syscall"

func diskFree(path string) (free, total uint64, err error) {
	var st syscall.Statfs_t
	if err = syscall.Statfs(path, &st); err != nil {
		return
	}
	return st.Bavail * uint64(st.Bsize), st.Blocks * uint64(st.Bsize), nil
}

// isMountPoint reports whether path is a mount point (its device differs from its parent's).
func isMountPoint(path string) bool {
	var a, b syscall.Stat_t
	if syscall.Stat(path, &a) != nil || syscall.Stat(path+"/..", &b) != nil {
		return false
	}
	return a.Dev != b.Dev
}