Function TempFileWithPostfix

generator/tempfile.go:47–65

TempFile creates a new temporary file in the directory dir with a name beginning with prefix, opens the file for reading and writing, and returns the resulting *os.File. If dir is the empty string, TempFile uses the default directory for temporary files (see os.TempDir). Multiple programs calling Te

(dir, prefix string, postfix string)

// to find the pathname of the file.  It is the caller's responsibility
// to remove the file when no longer needed.
func TempFileWithPostfix(dir, prefix string, postfix string) (f *os.File, err error) {
	if dir == "" {
		dir = os.TempDir()
	}

	nconflict := 0
	for i := 0; i < 10000; i++ {
		name := filepath.Join(dir, prefix+nextSuffix()+postfix)
		f, err = os.OpenFile(name, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0600)
		if os.IsExist(err) {
			if nconflict++; nconflict > 10 {
				rand = reseed()
			}
			continue
		}
		break
	}
	return
}