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- version39-41:1.1;
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- 1.1
- date 92.05.14.19.55.40; author mwild; state Exp;
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- desc
- @lowlevel synchronous write function for plain files
- @
-
-
- 1.1
- log
- @Initial revision
- @
- text
- @/*
- * 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.
- *
- * $Id$
- *
- * $Log$
- */
-
- #define KERNEL
- #include "ixemul.h"
-
- int
- __sync_write(struct file *f, char *buf, int len)
- {
- int err=errno, res = 0;
- int omask;
-
- if (HANDLER_NIL(f)) return len;
-
- omask = syscall (SYS_sigsetmask, ~0);
- __get_file (f);
- /* this allows intermixing different modes.. we wouldn't need to
- * wait, if we knew the user only used FSYNC-mode */
- __wait_packet(&f->f_sp);
-
- if (len > 0)
- {
- /* full append-mode means, before each write do an explicit
- * seek to eof */
- if (f->f_flags & FAPPEND)
- {
- SendPacket3(f,__rwport,ACTION_SEEK,f->f_fh->fh_Arg1,0,OFFSET_END);
- __wait_packet(&f->f_sp);
- }
-
- SendPacket3(f,__rwport,ACTION_WRITE,f->f_fh->fh_Arg1,(long)buf,len);
- __wait_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;
- return res;
- }
- @
-