摘要:
1 概述计数信号量集semid_ds:struct semid_ds{ struct ipc_perm sem_perm; struct sem *sem_base; //指向信号量结构数组 unsigned short ... 阅读全文
摘要:
3.1 概述消息队列结构:struct msqid_ds{ struct ipc_perm msg_perm; //权限结构 struct msg *msg_first; //队列中第一个消息 ... 阅读全文