fd2 1590 lib/vfs/direntry.c vfs_s_select_on_two (int fd1, int fd2) fd2 1595 lib/vfs/direntry.c int maxfd = MAX (fd1, fd2) + 1; fd2 1601 lib/vfs/direntry.c FD_SET (fd2, &set); fd2 1608 lib/vfs/direntry.c if (FD_ISSET (fd2, &set)) fd2 189 lib/vfs/xdirentry.h int vfs_s_select_on_two (int fd1, int fd2);