diff options
Diffstat (limited to 'usr.bin/window/wwrint.c')
-rw-r--r-- | usr.bin/window/wwrint.c | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/usr.bin/window/wwrint.c b/usr.bin/window/wwrint.c deleted file mode 100644 index 0cd0901..0000000 --- a/usr.bin/window/wwrint.c +++ /dev/null @@ -1,91 +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[] = "@(#)wwrint.c 8.1 (Berkeley) 6/6/93"; -#endif /* not lint */ - -#include "ww.h" -#include "tt.h" -#if defined(OLD_TTY) || defined(VMIN_BUG) -#include <fcntl.h> -#endif - -/* - * Tty input interrupt handler. - * (1) Read input into buffer (wwib*). - * (2) Set the interrupt flag if anything is read. - * Currently, the last is used to get out of the blocking - * select() in wwiomux(). - * To avoid race conditions, we only modify wwibq in here, except - * when the buffer is empty; and everywhere else, we only change wwibp. - * It should be completely safe. - */ -void -wwrint() -{ - register n; - - if (wwibp == wwibq) - wwibp = wwibq = wwib; - wwnread++; -#if defined(OLD_TTY) || defined(VMIN_BUG) - /* we have set c_cc[VMIN] to 0 */ - (void) fcntl(0, F_SETFL, O_NONBLOCK|wwnewtty.ww_fflags); -#endif - n = read(0, wwibq, wwibe - wwibq); -#if defined(OLD_TTY) || defined(VMIN_BUG) - (void) fcntl(0, F_SETFL, wwnewtty.ww_fflags); -#endif - if (n > 0) { - if (tt.tt_rint) - n = (*tt.tt_rint)(wwibq, n); - if (n > 0) { - wwibq += n; - wwnreadc += n; - /* - * Hasten or delay the next checkpoint, - * as the case may be. - */ - if (tt.tt_checkpoint && !wwdocheckpoint) - (void) alarm(1); - wwsetintr(); - } - } else if (n == 0) - wwnreadz++; - else - wwnreade++; -} |