/*
    device.C -- include the correct low-level implementation.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
 
    This program 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 General Public License for more details.
 
    You should have received a copy of the GNU 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
*/

#include "config.h"

#include <cstring>
#include <cstdlib>

#include "slog.h"
#include "device.h"

static void *pkt_cachep[PKTCACHESIZE];
static int pkt_cachen = 0;

void *net_packet::operator new(size_t s)
{
  if (s > sizeof (data_packet))
    {
      slog (L_ERR, _("FATAL: allocation for network packet larger than max supported packet size (%d > %d).\n"),
            s, sizeof (data_packet));
      abort ();
    }

  if (pkt_cachen)
    return pkt_cachep[--pkt_cachen];
  else
    {
      void *p  = malloc (sizeof (data_packet));
      memset (p, 0, sizeof (data_packet));
      return p;
    }
}

void net_packet::operator delete(void *p)
{
  if (p)
    {
      if (pkt_cachen < PKTCACHESIZE)
        {
          memset (p, 0, sizeof (data_packet));
          pkt_cachep[pkt_cachen++] = p;
        }
      else
        free (p);
    }
}

#if defined(__linux__)
# include "device-linux.C"
#elif defined(__CYGWIN__)
# include "device-cygwin.C"
#else
# error No device implementation for your OS.
#endif