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/*
This file is part of GNUnet.
(C) 2009 Christian Grothoff (and other contributing authors)
GNUnet 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 3, or (at your
option) any later version.
GNUnet 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 GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file hostlist/hostlist-client.h
* @brief hostlist support. Downloads HELLOs via HTTP.
* @author Christian Grothoff
*/
#ifndef HOSTLIST_CLIENT_H
#define HOSTLIST_CLIENT_H
#include "gnunet_core_service.h"
#include "gnunet_statistics_service.h"
#include "gnunet_util_lib.h"
#include "gnunet_time_lib.h"
/**
* Maximum number of hostlist that are saved
*/
#define MAX_NUMBER_HOSTLISTS 30
/**
* Time intervall hostlists are saved to disk
*/
#define SAVING_INTERVALL GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 30)
/**
* Time interval between two hostlist tests
*/
#define TESTING_INTERVALL GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 3)
/**
* Time interval for download dispatcher before a download is re-scheduled
*/
#define WAITING_INTERVALL GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1)
/**
* Defines concerning the hostlist quality metric
*/
/**
* Initial quality of a new created hostlist
*/
#define HOSTLIST_INITIAL 10000
/**
* Value subtracted each time a hostlist download fails
*/
#define HOSTLIST_FAILED_DOWNLOAD 100
/**
* Value added each time a hostlist download is successful
*/
#define HOSTLIST_SUCCESSFUL_DOWNLOAD 100
/**
* Value added for each valid HELLO recived during a hostlist download
*/
#define HOSTLIST_SUCCESSFUL_HELLO 1
/**
* Start downloading hostlists from hostlist servers as necessary.
*
* @param c the configuration to use
* @param st hande for publishing statistics
* @param ch set to handler for connect notifications
* @param dh set to handler for disconnect notifications
* @param msgh set to handler for message handler notifications
* @param learn set if client is learning new hostlists
* @return GNUNET_OK on success
*/
int
GNUNET_HOSTLIST_client_start (const struct GNUNET_CONFIGURATION_Handle *c,
struct GNUNET_STATISTICS_Handle *st,
GNUNET_CORE_ConnectEventHandler *ch,
GNUNET_CORE_DisconnectEventHandler *dh,
GNUNET_CORE_MessageCallback *msgh, int learn);
/**
* Stop downloading hostlists from hostlist servers as necessary.
*/
void
GNUNET_HOSTLIST_client_stop (void);
#endif
/* end of hostlist-client.h */
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