deb-goldedplus/goldlib/gall/gusrmax.cpp

//  This may look like C code, but it is really -*- C++ -*-

//  ------------------------------------------------------------------
//  The Goldware Library
//  Copyright (C) 1990-1999 Odinn Sorensen
//  ------------------------------------------------------------------
//  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 program; if not, write to the Free
//  Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
//  MA 02111-1307, USA
//  ------------------------------------------------------------------
//  $Id$
//  ------------------------------------------------------------------
//  Maximus userfile class implementation.
//  ------------------------------------------------------------------

#include <gstrall.h>
#include <gfilutil.h>
#include <gmemdbg.h>
#include <gusrmax.h>


//  ------------------------------------------------------------------

MaximusUser::MaximusUser() {

  recsize = sizeof(MaxUsers);
  recptr = new char [recsize];  throw_new(recptr);

  record = (MaxUsers*)recptr;
  memset(record, 0, recsize);

  name = record->name;
  record->struct_len = (byte)(recsize / 20);

  firstread = true;
}


//  ------------------------------------------------------------------

MaximusUser::~MaximusUser() {

  throw_deletearray(recptr);
}


//  ------------------------------------------------------------------

int MaximusUser::isvalid() {

  return not (record->delflag & MAXIMUS_USERDELETED);
}


//  ------------------------------------------------------------------

int MaximusUser::read()
{
  if (gufh != -1)
  {
    if (firstread)
    {
      firstread = false;
      if (filelength(gufh) >= 180)
      {
        ::read(gufh, record, recsize);
        lseek(gufh, -(long)recsize, SEEK_CUR);
        uint _tmp = record->struct_len ? record->struct_len*20 : 180;
        if(_tmp != recsize) {
          recsize = _tmp;
          throw_deletearray(recptr);
          recptr = new char [recsize];  throw_new(recptr);
          record = (MaxUsers*)recptr;
          name = record->name;
        }
      }
    }
    ::read(gufh, record, recsize);
    if (isvalid())
    {
      index = record->lastread_ptr;
      maxindex = maximum_of_two(index, maxindex);
      return true;
    }
  }
  return false;
}


//  ------------------------------------------------------------------

void MaximusUser::founduser() {

  index = record->lastread_ptr;
  found = true;
}


//  ------------------------------------------------------------------

void MaximusUser::recinit(const char* __name) {

  GUser::recinit(__name);
  record->lastread_ptr = (word)(++maxindex);
  record->struct_len   = (byte)(recsize / 20);
  record->delflag      = MAXIMUS_USERPERMANENT;
  record->priv         = MAXIMUS_PRIV_TWIT;
}


//  ------------------------------------------------------------------