fd2 1579 lib/vfs/direntry.c vfs_s_select_on_two (int fd1, int fd2) fd2 1589 lib/vfs/direntry.c maxfd = MAX (fd1, fd2) + 1; fd2 1593 lib/vfs/direntry.c FD_SET (fd2, &set); fd2 1600 lib/vfs/direntry.c if (FD_ISSET (fd2, &set)) fd2 190 lib/vfs/xdirentry.h int vfs_s_select_on_two (int fd1, int fd2);