select, pselect, FD_CLR, FD_ISSET, FD_SET, FD_ZERO, fd_set - synchronous I/O multiplexing ... libc , -lc ) SYNOPSIS #include <sys/select.h> typedef /* ... */ fd_set; int select(int…select, pselect, FD_CLR, FD_ISSET, FD_SET, FD_ZERO, fd_set - synchronous I/O multiplexing ... libc , -lc ) SYNOPSIS #include <sys/select.h> typedef /* ... */ fd_set; int select(int…select, pselect, FD_CLR, FD_ISSET, FD_SET, FD_ZERO, fd_set - synchronous I/O multiplexing ... libc , -lc ) SYNOPSIS #include <sys/select.h> typedef /* ... */ fd_set; int select(int…sigmask, empty_mask; struct sigaction sa; fd_set readfds, writefds, exceptfds; int r; sigemptyset(&sigmask ... buf1[BUF_SIZE], buf2[BUF_SIZE]; fd_set readfds, writefds, exceptfds; …