/*
 *  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.
 */

#define _KERNEL
#include "ixemul.h"

int __unlock (BPTR lock)
{
  struct StandardPacket *sp;
  
  if (lock == NULL)
    return 0;
  sp = alloca(sizeof(*sp)+2);
  sp = LONG_ALIGN (sp);
  __init_std_packet(sp);

  sp->sp_Pkt.dp_Port = u.u_sync_mp;
  sp->sp_Pkt.dp_Type = ACTION_FREE_LOCK;
  sp->sp_Pkt.dp_Arg1 = lock;

  PutPacket (((struct FileLock *)BTOCPTR (lock))->fl_Task, sp);
  __wait_sync_packet (sp);
  
  /* set up Result2 so that the IoErr() works */
  ((struct Process *)FindTask (0))->pr_Result2 = sp->sp_Pkt.dp_Res2;

  return sp->sp_Pkt.dp_Res1;
}

/* ATTENTION: name-clash between sysio-__close and DOS-__Close !! */
void __Close (BPTR fh)
{
  struct StandardPacket *sp;
  struct FileHandle *fhp = BTOCPTR (fh);
  
  /* only do this is not closing a dummy NIL: filehandle */
  if (fhp->fh_Type)
    {
      sp = alloca(sizeof(*sp)+2);
      sp = LONG_ALIGN (sp);
      __init_std_packet(sp);

      sp->sp_Pkt.dp_Port = u.u_sync_mp;
      sp->sp_Pkt.dp_Type = ACTION_END;
      sp->sp_Pkt.dp_Arg1 = fhp->fh_Arg1;

      PutPacket (fhp->fh_Type, sp);
      __wait_sync_packet (sp);

      /* set up Result2 so that the IoErr() works */
      ((struct Process *)FindTask (0))->pr_Result2 = sp->sp_Pkt.dp_Res2;
    }
  else
    ((struct Process *)FindTask (0))->pr_Result2 = 0;
  
  FreeDosObject (DOS_FILEHANDLE, fhp);
}