home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Geek Gadgets 1
/
ADE-1.bin
/
ade-dist
/
ixemul-45.0-src.tgz
/
tar.out
/
contrib
/
ixemul
/
library
/
__write.c
< prev
next >
Wrap
C/C++ Source or Header
|
1996-09-28
|
3KB
|
113 lines
/*
* This file is part of ixemul.library for the Amiga.
* Copyright (C) 1991, 1992 Markus M. Wild
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* __swrite.c,v 1.1.1.1 1994/04/04 04:30:12 amiga Exp
*
* __swrite.c,v
* Revision 1.1.1.1 1994/04/04 04:30:12 amiga
* Initial CVS check in.
*
* Revision 1.1 1992/05/14 19:55:40 mwild
* Initial revision
*
*/
#define _KERNEL
#include "ixemul.h"
#include "kprintf.h"
static int __do_sync_write(struct file *f, char *buf, int len)
{
int err=errno, res = 0;
int omask;
omask = syscall (SYS_sigsetmask, ~0);
__get_file (f);
if (len > 0)
{
/* full append-mode means, before each write do an explicit
* seek to eof */
if (f->f_flags & FAPPEND)
{
SendPacket3(f,__srwport,ACTION_SEEK,f->f_fh->fh_Arg1,0,OFFSET_END);
__wait_sync_packet(&f->f_sp);
}
SendPacket3(f,__srwport,ACTION_WRITE,f->f_fh->fh_Arg1,(long)buf,len);
__wait_sync_packet(&f->f_sp);
res = LastResult(f);
if (res == -1) err = __ioerr_to_errno(LastError(f));
}
LastResult(f) = 0;
__release_file (f);
syscall (SYS_sigsetmask, omask);
errno = err;
KPRINTF (("&errno = %lx, errno = %ld\n", &errno, errno));
return res;
}
int __write(struct file *f, char *buf, int len)
{
char *p;
int l, bytes, res = 0, tmp;
if (HANDLER_NIL(f))
return len;
if (!f->f_fh->fh_Port) /* if not interactive */
return __do_sync_write(f, buf, len);
/* write the buffer line by line, otherwise the user isn't able to stop
the console output until the whole buffer was flushed to the console */
/* also check the f->f_ttyflags */
#define TTY_NLCR_ENABLE (IXTTY_RAW | IXTTY_OPOST | IXTTY_ONLCR)
for (p = buf, l = 0; l < len; p += bytes, l += bytes)
{
if (p[0] == '\n')
{
bytes = 1;
if ((f->f_ttyflags & TTY_NLCR_ENABLE) == TTY_NLCR_ENABLE)
{
tmp = __do_sync_write(f, "\r\n", 2);
if (tmp == -1)
return tmp;
tmp = (tmp == 2 ? 1 : 0);
res += tmp;
if (tmp != bytes)
return res;
continue;
}
}
else
for (bytes = 0; l + bytes < len && p[bytes] != '\n' && bytes < 256; bytes++) ;
if (bytes)
{
tmp = __do_sync_write(f, p, bytes);
if (tmp == -1)
return tmp;
res += tmp;
if (tmp != bytes)
return res;
}
}
return res;
}