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//go:build !plan9 && !windows && !js
// +build !plan9,!windows,!js
package osfs
import (
"os"
"syscall"
"golang.org/x/sys/unix"
)
func (f *file) Lock() error {
f.m.Lock()
defer f.m.Unlock()
return unix.Flock(int(f.File.Fd()), unix.LOCK_EX)
}
func (f *file) Unlock() error {
f.m.Lock()
defer f.m.Unlock()
return unix.Flock(int(f.File.Fd()), unix.LOCK_UN)
}
func rename(from, to string) error {
return os.Rename(from, to)
}
// umask sets umask to a new value, and returns a func which allows the
// caller to reset it back to what it was originally.
func umask(new int) func() {
old := syscall.Umask(new)
return func() {
syscall.Umask(old)
}
}
|
