判断文件是否上锁，并且判断文件上的锁是什么类型-Judge documents locked, and judge the lock on the file is what type

文件锁，独占方式锁文件，并行并发的小手段-File lock, exclusive lock files, parallel concurrent small means

linux 多进程实例，涉及进程间通信以及文件锁的简单应用-linux mutily proces file lock

高速one-wire总线驱动，亲测可用。该demo在运行时会有一定概率读取失败，原因是没有设置锁和读写屏障。-High-speed one-wire bus driver, pro-test available. The demo at run time will have a certain probability of failure to read, because there is no set lock and literacy barriers.

以STM32 单片机为核心设计了一套智能家居控制系统。该系统通过无线通信、串口通信对系统各部分进行串联，用户可通过门禁密码锁验证身份后进入智能家居系统-A set of intelligent home control system based on STM32 MCU is designed. The system through the wireless communication, serial communication of the various parts of the syste