/* Copyright (c) 2026 Meng Zhuo */
/* SPDX-License-Identifier: BSD-3-Clause */
#ifndef _SYS_FILE_H
#define _SYS_FILE_H
#define LOCK_SH 1
#define LOCK_EX 2
#define LOCK_NB 4
#define LOCK_UN 8
#define L_SET 0
#define L_INCR 1
#define L_XTND 2
int flock(int, int);
#endif