Function arceos_posix_api::sys_select

pub unsafe fn sys_select(
    nfds: c_int,
    readfds: *mut fd_set,
    writefds: *mut fd_set,
    exceptfds: *mut fd_set,
    timeout: *mut timeval
) -> c_int

Available on crate feature select and (crate features select or epoll) only.

Monitor multiple file descriptors, waiting until one or more of the file descriptors become “ready” for some class of I/O operation