ttyputc.c,v

来自「TCP-IP红宝书源代码」· C,V 代码 · 共 91 行

head	1.2;
access;
symbols;
locks
	dls:1.2; strict;
comment	@ * @;


1.2
date	97.09.21.19.30.23;	author dls;	state Dist;
branches;
next	1.1;

1.1
date	94.05.08.06.01.42;	author dls;	state Old;
branches;
next	;


desc
@@


1.2
log
@pre-3e code
@
text
@/* ttyputc.c - ttyputc */

#include <conf.h>
#include <kernel.h>
#include <tty.h>

/*------------------------------------------------------------------------
 * ttyputc - write a single character to a tty
 *------------------------------------------------------------------------
 */
int
ttyputc(pdev, ch)
struct devsw	*pdev;
unsigned char	ch;
{
	return ttywrite(pdev, &ch, 1);
}
@


1.1
log
@Initial revision
@
text
@a5 5
#include <io.h>
#include <slu.h>
#include <zsreg.h>

extern char *foob2;
d8 1
a8 1
 *  ttyputc - write one character to a tty device
d11 4
a14 3
ttyputc(devptr, ch )
struct	devsw	*devptr;
char	ch;
d16 1
a16 16
	STATWORD ps;    
	struct	tty   *iptr;

	iptr = &tty[devptr->dvminor];
        if ( ch==NEWLINE && iptr->ocrlf )
                ttyputc(devptr,RETURN);
	disable(ps);
	wait(iptr->osem);		/* wait	for space in queue	*/
	/**foob2++ = ch;*/
	iptr->obuff[iptr->ohead++] = ch;
	++iptr->ocnt;
	if (iptr->ohead	>= OBUFLEN)
		iptr->ohead = 0;
	ttyostart(iptr);
	restore(ps);
	return(OK);
a17 3



@