quakeforge/include/netchan.h

170 lines
4.8 KiB
C
Raw Normal View History

/*
2003-02-12 20:08:55 +00:00
netchan.h
quake's interface to the networking layer
Copyright (C) 1996-1997 Id Software, Inc.
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:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
$Id$
*/
#ifndef _NET_H
#define _NET_H
#include "QF/cvar.h"
#include "QF/msg.h"
#include "QF/qdefs.h"
#include "QF/sizebuf.h"
#define MAX_MSGLEN 1450 // max length of a reliable message
#define MAX_DATAGRAM 1450 // max length of unreliable message
#define PORT_ANY -1
typedef struct
{
2001-02-22 19:00:34 +00:00
#ifdef HAVE_IPV6
byte ip[16];
#else
byte ip[4];
2001-02-22 19:00:34 +00:00
#endif
unsigned short port;
unsigned short family; // used to be pad, before IPV6
} netadr_t;
extern netadr_t net_local_adr;
extern netadr_t net_loopback_adr;
extern netadr_t net_from; // address of who sent the packet
extern struct msg_s *net_message;
2001-05-31 03:41:35 +00:00
extern struct cvar_s *hostname;
2001-10-27 08:28:15 +00:00
extern struct cvar_s *qport;
extern int net_socket;
void NET_Init (int port);
void NET_Init (int port);
void NET_Shutdown (void);
qboolean NET_GetPacket (void);
2007-05-31 05:58:33 +00:00
void NET_SendPacket (int length, const void *data, netadr_t to);
qboolean NET_CompareAdr (netadr_t a, netadr_t b);
qboolean NET_CompareBaseAdr (netadr_t a, netadr_t b);
2001-07-15 07:04:17 +00:00
const char *NET_AdrToString (netadr_t a);
const char *NET_BaseAdrToString (netadr_t a);
qboolean NET_StringToAdr (const char *s, netadr_t *a);
qboolean NET_IsClientLegal(netadr_t *adr);
int Net_Log_Init (const char **sound_precache);
void Net_LogPrintf (const char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
void Log_Incoming_Packet (const byte *p, int len, int has_sequence);
void Log_Outgoing_Packet (const byte *p, int len, int has_sequence);
void Net_LogStop (void);
2003-03-16 03:17:50 +00:00
void Analyze_Client_Packet (const byte * data, int len, int has_sequence);
void Analyze_Server_Packet (const byte * data, int len, int has_sequence);
extern struct cvar_s *net_packetlog;
extern qboolean is_server;
qboolean ServerPaused (void);
//============================================================================
#define OLD_AVG 0.99 // total = oldtotal*OLD_AVG + new*(1-OLD_AVG)
#define MAX_LATENT 32
typedef struct netchan_s {
qboolean fatal_error;
float last_received; // for timeouts
// the statistics are cleared at each client begin, because
// the server connecting process gives a bogus picture of the data
float frame_latency; // rolling average
float frame_rate;
int drop_count; // dropped packets, cleared each level
int net_drop; //packets dropped before this one
int good_count; // cleared each level
netadr_t remote_address;
int qport;
int flags;
// bandwidth estimator
double cleartime; // if realtime > nc->cleartime, free to go
double rate; // seconds / byte
// sequencing variables
int incoming_sequence;
int incoming_acknowledged;
int incoming_reliable_acknowledged; // single bit
int incoming_reliable_sequence; // single bit, maintained local
int outgoing_sequence;
int reliable_sequence; // single bit
int last_reliable_sequence; // sequence number of last send
// reliable staging and holding areas
sizebuf_t message; // writing buffer to send to server
byte message_buf[MAX_MSGLEN];
int reliable_length;
byte reliable_buf[MAX_MSGLEN]; // unacked reliable message
// time and size data to calculate bandwidth
int outgoing_size[MAX_LATENT];
double outgoing_time[MAX_LATENT];
} netchan_t;
extern int net_nochoke; // don't choke packets
extern int net_blocksend; // don't send packets (used by client for demos)
2004-02-19 23:06:47 +00:00
extern double *net_realtime;
void Netchan_Init (void);
void Netchan_Init_Cvars (void);
void Netchan_Transmit (netchan_t *chan, int length, byte *data);
void Netchan_OutOfBand (netadr_t adr, int length, byte *data);
2001-07-15 07:04:17 +00:00
void Netchan_OutOfBandPrint (netadr_t adr, const char *format, ...) __attribute__((format(printf,2,3)));
qboolean Netchan_Process (netchan_t *chan);
void Netchan_Setup (netchan_t *chan, netadr_t adr, int qport, int flags);
#define NC_SEND_QPORT 0x01
#define NC_READ_QPORT 0x02
qboolean Netchan_CanPacket (netchan_t *chan);
qboolean Netchan_CanReliable (netchan_t *chan);
static inline void
2007-05-31 05:58:33 +00:00
Netchan_SendPacket (int length, const void *data, netadr_t to)
{
#if 0
if (net_packetlog->int_val)
2003-03-16 03:17:50 +00:00
Log_Outgoing_Packet(data, length, 1);
#endif
NET_SendPacket (length, data, to);
}
2001-10-28 04:23:37 +00:00
#endif // _NET_H