select function winsock
The select function determines the status of one or more sockets, waiting if necessary, to perform synchronous I/O.
int select(
int nfds,
fd_set *readfds,
fd_set *writefds,
fd_set *exceptfds,
const timeval *timeout
);
Implementation
int select(int nfds, Pointer<FD_SET> readfds, Pointer<FD_SET> writefds,
Pointer<FD_SET> exceptfds, Pointer<TIMEVAL> timeout) =>
_select(nfds, readfds, writefds, exceptfds, timeout);