软件架构设计师-PV操作-进程间操作顺序-信号量-阻塞释放

插件开发发布时间：2022-04-19 06:54:01 ，浏览量：1

文章目录

- 1.PV操作的含义
- 2.信号量
- 3.注意事项

1.PV操作的含义

PV操作由P操作原语和V操作原语组成（原语是不可中断的过程），对信号量进行操作，具体定义如下： P（S）：①将信号量S的值减1，即S=S-1； ②如果S

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软件架构设计师-PV操作-进程间操作顺序-信号量-阻塞释放

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