select - IO 多路复用的门槛
man select
int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout);
pselect 是忽略指定信号
阅读手册的 example
select - IO 多路复用的门槛
man select
int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout);
pselect 是忽略指定信号
阅读手册的 example