X-Git-Url: https://pd.if.org/git/?p=pd_readline;a=blobdiff_plain;f=mg%2Fttyio.c;fp=mg%2Fttyio.c;h=0000000000000000000000000000000000000000;hp=228a370c5a8b94bc1f082e8430724137537964e2;hb=4bb27266f935c9aafad6870ffc8847fc65c8120f;hpb=3f771e17236364ded86e96ee64f99344337991f8

diff --git a/mg/ttyio.c b/mg/ttyio.c
deleted file mode 100644
index 228a370..0000000
--- a/mg/ttyio.c
+++ /dev/null
@@ -1,225 +0,0 @@
-/*	$OpenBSD: ttyio.c,v 1.32 2008/02/05 12:53:38 reyk Exp $	*/
-
-/* This file is in the public domain. */
-
-/*
- * POSIX terminal I/O.
- *
- * The functions in this file negotiate with the operating system for
- * keyboard characters, and write characters to the display in a barely
- * buffered fashion.
- */
-#include "def.h"
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/ioctl.h>
-#include <fcntl.h>
-#include <termios.h>
-#include <term.h>
-
-#define NOBUF	512			/* Output buffer size. */
-
-#ifndef TCSASOFT
-#define TCSASOFT	0
-#endif
-
-int	ttstarted;
-char	obuf[NOBUF];			/* Output buffer. */
-size_t	nobuf;				/* Buffer count. */
-struct	termios	oldtty;			/* POSIX tty settings. */
-struct	termios	newtty;
-int	nrow;				/* Terminal size, rows. */
-int	ncol;				/* Terminal size, columns. */
-
-/*
- * This function gets called once, to set up the terminal.
- * On systems w/o TCSASOFT we turn off off flow control,
- * which isn't really the right thing to do.
- */
-void
-ttopen(void)
-{
-	if (!isatty(STDIN_FILENO) || !isatty(STDOUT_FILENO))
-		panic("standard input and output must be a terminal");
-
-	if (ttraw() == FALSE)
-		panic("aborting due to terminal initialize failure");
-}
-
-/*
- * This function sets the terminal to RAW mode, as defined for the current
- * shell.  This is called both by ttopen() above and by spawncli() to
- * get the current terminal settings and then change them to what
- * mg expects.	Thus, tty changes done while spawncli() is in effect
- * will be reflected in mg.
- */
-int
-ttraw(void)
-{
-	if (tcgetattr(0, &oldtty) < 0) {
-		ewprintf("ttopen can't get terminal attributes");
-		return (FALSE);
-	}
-	(void)memcpy(&newtty, &oldtty, sizeof(newtty));
-	/* Set terminal to 'raw' mode and ignore a 'break' */
-	newtty.c_cc[VMIN] = 1;
-	newtty.c_cc[VTIME] = 0;
-	newtty.c_iflag |= IGNBRK;
-	newtty.c_iflag &= ~(BRKINT | PARMRK | INLCR | IGNCR | ICRNL | IXON);
-	newtty.c_oflag &= ~OPOST;
-	newtty.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
-
-#if !TCSASOFT
-	/*
-	 * If we don't have TCSASOFT, force terminal to
-	 * 8 bits, no parity.
-	 */
-	newtty.c_iflag &= ~ISTRIP;
-	newtty.c_cflag &= ~(CSIZE | PARENB);
-	newtty.c_cflag |= CS8;
-#endif
-	if (tcsetattr(0, TCSASOFT | TCSADRAIN, &newtty) < 0) {
-		ewprintf("ttopen can't tcsetattr");
-		return (FALSE);
-	}
-	ttstarted = 1;
-
-	return (TRUE);
-}
-
-/*
- * This function gets called just before we go back home to the shell.
- * Put all of the terminal parameters back.
- * Under UN*X this just calls ttcooked(), but the ttclose() hook is in
- * because vttidy() in display.c expects it for portability reasons.
- */
-void
-ttclose(void)
-{
-	if (ttstarted) {
-		if (ttcooked() == FALSE)
-			panic("");	/* ttcooked() already printf'd */
-		ttstarted = 0;
-	}
-}
-
-/*
- * This function restores all terminal settings to their default values,
- * in anticipation of exiting or suspending the editor.
- */
-int
-ttcooked(void)
-{
-	ttflush();
-	if (tcsetattr(0, TCSASOFT | TCSADRAIN, &oldtty) < 0) {
-		ewprintf("ttclose can't tcsetattr");
-		return (FALSE);
-	}
-	return (TRUE);
-}
-
-/*
- * Write character to the display.  Characters are buffered up,
- * to make things a little bit more efficient.
- */
-int
-ttputc(int c)
-{
-	if (nobuf >= NOBUF)
-		ttflush();
-	obuf[nobuf++] = c;
-	return (c);
-}
-
-/*
- * Flush output.
- */
-void
-ttflush(void)
-{
-	ssize_t	 written;
-	char	*buf = obuf;
-
-	if (nobuf == 0)
-		return;
-
-	while ((written = write(fileno(stdout), buf, nobuf)) != nobuf) {
-		if (written == -1) {
-			if (errno == EINTR)
-				continue;
-			panic("ttflush write failed");
-		}
-		buf += written;
-		nobuf -= written;
-	}
-	nobuf = 0;
-}
-
-/*
- * Read character from terminal. All 8 bits are returned, so that you
- * can use a multi-national terminal.
- */
-int
-ttgetc(void)
-{
-	char	c;
-	ssize_t	ret;
-
-	do {
-		ret = read(STDIN_FILENO, &c, 1);
-		if (ret == -1 && errno == EINTR) {
-			if (winch_flag) {
-				redraw(0, 0);
-				winch_flag = 0;
-			}
-		} else if (ret == 1)
-			break;
-	} while (1);
-	return ((int) c) & 0xFF;
-}
-
-/*
- * Returns TRUE if there are characters waiting to be read.
- */
-int
-charswaiting(void)
-{
-	int	x;
-
-	return ((ioctl(0, FIONREAD, &x) < 0) ? 0 : x);
-}
-
-/*
- * panic - just exit, as quickly as we can.
- */
-void
-panic(char *s)
-{
-	ttclose();
-	(void) fputs("panic: ", stderr);
-	(void) fputs(s, stderr);
-	(void) fputc('\n', stderr);
-	exit(1);
-}
-
-/*
- * This function returns FALSE if any characters have showed up on the
- * tty before 'msec' milliseconds.
- */
-int
-ttwait(int msec)
-{
-	fd_set		readfds;
-	struct timeval	tmout;
-
-	FD_ZERO(&readfds);
-	FD_SET(0, &readfds);
-
-	tmout.tv_sec = msec/1000;
-	tmout.tv_usec = msec - tmout.tv_sec * 1000;
-
-	if ((select(1, &readfds, NULL, NULL, &tmout)) == 0)
-		return (TRUE);
-	return (FALSE);
-}