summaryrefslogtreecommitdiffstats
path: root/usr.bin/window/wwrint.c
diff options
context:
space:
mode:
Diffstat (limited to 'usr.bin/window/wwrint.c')
-rw-r--r--usr.bin/window/wwrint.c91
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++;
-}
OpenPOWER on IntegriCloud