diff options
Diffstat (limited to 'usr.bin/window/wwflush.c')
| -rw-r--r-- | usr.bin/window/wwflush.c | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/usr.bin/window/wwflush.c b/usr.bin/window/wwflush.c deleted file mode 100644 index ef30b58c2f44..000000000000 --- a/usr.bin/window/wwflush.c +++ /dev/null @@ -1,111 +0,0 @@ -/* - * Copyright (c) 1983, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Edward Wang at The University of California, Berkeley. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef lint -static char sccsid[] = "@(#)wwflush.c 8.1 (Berkeley) 6/6/93"; -static char rcsid[] = - "$FreeBSD$"; -#endif /* not lint */ - -#include "ww.h" -#include "tt.h" -#include <signal.h> -#include <strings.h> - -wwflush() -{ - register row, col; - - if ((row = wwcursorrow) < 0) - row = 0; - else if (row >= wwnrow) - row = wwnrow - 1; - if ((col = wwcursorcol) < 0) - col = 0; - else if (col >= wwncol) - col = wwncol - 1; - xxmove(row, col); - if (wwdocheckpoint) { - xxflush(0); - wwcheckpoint(); - } else - xxflush(1); -} - -wwcheckpoint() -{ - int s = sigblock(sigmask(SIGALRM) | sigmask(SIGIO)); - - tt.tt_ack = 0; - do { - (*tt.tt_checkpoint)(); -#ifndef OLD_TTY - (void) tcdrain(1); -#endif - (void) alarm(3); - for (wwdocheckpoint = 0; !wwdocheckpoint && tt.tt_ack == 0;) - (void) sigpause(s); - } while (tt.tt_ack == 0); - (void) alarm(0); - wwdocheckpoint = 0; - if (tt.tt_ack < 0) { - wwcopyscreen(wwcs, wwos); - (void) alarm(1); - wwreset(); - wwupdate(); - wwflush(); - } else { - wwcopyscreen(wwos, wwcs); - (void) alarm(3); - } - (void) sigsetmask(s); -} - -wwcopyscreen(s1, s2) - register union ww_char **s1, **s2; -{ - register i; - register s = wwncol * sizeof **s1; - - for (i = wwnrow; --i >= 0;) - bcopy((char *) *s1++, (char *) *s2++, s); -} - -void -wwalarm() -{ - wwdocheckpoint = 1; -} |