/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */

/* $Id$ */

/* Copyright (C) 1998-99 Martin Baulig
   This file is part of LibGTop 1.0.

   Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.

   LibGTop 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.

   LibGTop 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 LibGTop; see the file COPYING. If not, write to the
   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/

#include <backend-server.h>

void *
glibtop_read_data_i (backend_server_private *priv)
{
    size_t size;
    void *ptr;
    int ret;

#ifdef DEBUG
    fprintf (stderr, "LIBRARY: reading %d data bytes.\n", sizeof (size_t));
#endif

    ret = read (priv->input [0], (void *)&size, sizeof (size_t));

    if (ret < 0)
	glibtop_error_io_r (priv->server, "read data size");

#ifdef DEBUG
    fprintf (stderr, "LIBRARY: really reading %d data bytes (ret = %d).\n", size, ret);
#endif

    if (!size) return NULL;	

    ptr = glibtop_malloc_r (priv->server, size);
	
    ret = read (priv->input [0], ptr, size);

    if (ret < 0)
	glibtop_error_io_r (priv->server, "read data %d bytes");

    return ptr;
}