a67a6355d2
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4 fc73d0e0-1445-4013-8a0c-d673dee63da5
165 lines
4.8 KiB
C
165 lines
4.8 KiB
C
/*
|
|
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 the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
*/
|
|
// net.h -- quake's interface to the networking layer
|
|
|
|
#define PORT_ANY -1
|
|
|
|
typedef enum {NA_INVALID, NA_LOOPBACK, NA_IP, NA_IPV6, NA_IPX, NA_BROADCAST_IP, NA_BROADCAST_IP6, NA_BROADCAST_IPX} netadrtype_t;
|
|
|
|
typedef enum {NS_CLIENT, NS_SERVER} netsrc_t;
|
|
|
|
typedef struct
|
|
{
|
|
netadrtype_t type;
|
|
|
|
union {
|
|
qbyte ip[4];
|
|
qbyte ip6[16];
|
|
qbyte ipx[10];
|
|
};
|
|
|
|
unsigned short port;
|
|
} netadr_t;
|
|
|
|
struct sockaddr_qstorage
|
|
{
|
|
short sa_family;
|
|
unsigned char sa_pad[6];
|
|
#if defined(_MSC_VER) || defined(MINGW)
|
|
__int64 sa_align;
|
|
#else
|
|
int sa_align[2];
|
|
#endif
|
|
unsigned char sa_pad2[112];
|
|
};
|
|
|
|
|
|
extern netadr_t net_local_ipadr;
|
|
extern netadr_t net_from; // address of who sent the packet
|
|
extern sizebuf_t net_message;
|
|
//#define MAX_UDP_PACKET (MAX_MSGLEN*2) // one more than msg + header
|
|
#define MAX_UDP_PACKET 8192 // one more than msg + header
|
|
extern qbyte net_message_buffer[MAX_UDP_PACKET];
|
|
|
|
extern cvar_t hostname;
|
|
|
|
void NET_Init (void);
|
|
void NET_InitClient (void);
|
|
void NET_InitServer (void);
|
|
void NET_CloseServer (void);
|
|
void UDP_CloseSocket (int socket);
|
|
void NET_Shutdown (void);
|
|
qboolean NET_GetPacket (netsrc_t socket);
|
|
void NET_SendPacket (netsrc_t socket, int length, void *data, netadr_t to);
|
|
|
|
qboolean NET_CompareAdr (netadr_t a, netadr_t b);
|
|
qboolean NET_CompareBaseAdr (netadr_t a, netadr_t b);
|
|
char *NET_AdrToString (netadr_t a);
|
|
char *NET_BaseAdrToString (netadr_t a);
|
|
qboolean NET_StringToAdr (char *s, netadr_t *a);
|
|
qboolean NET_IsClientLegal(netadr_t *adr);
|
|
|
|
qboolean NET_IsLoopBackAddress (netadr_t adr);
|
|
|
|
//============================================================================
|
|
|
|
#define OLD_AVG 0.99 // total = oldtotal*OLD_AVG + new*(1-OLD_AVG)
|
|
|
|
#define MAX_LATENT 32
|
|
|
|
typedef struct
|
|
{
|
|
qboolean fatal_error;
|
|
|
|
#ifdef NQPROT
|
|
qboolean isnqprotocol;
|
|
struct qsocket_s *qsocket;
|
|
#endif
|
|
|
|
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 good_count; // cleared each level
|
|
|
|
netadr_t remote_address;
|
|
netsrc_t sock;
|
|
int qport;
|
|
|
|
// bandwidth estimator
|
|
double cleartime; // if realtime > nc->cleartime, free to go
|
|
double rate; // seconds / qbyte
|
|
|
|
// 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
|
|
qbyte message_buf[MAX_OVERALLMSGLEN];
|
|
|
|
int reliable_length;
|
|
qbyte reliable_buf[MAX_OVERALLMSGLEN]; // unacked reliable message
|
|
|
|
// time and size data to calculate bandwidth
|
|
int outgoing_size[MAX_LATENT];
|
|
double outgoing_time[MAX_LATENT];
|
|
qboolean compress;
|
|
} netchan_t;
|
|
|
|
extern int net_drop; // packets dropped before this one
|
|
|
|
void Netchan_Init (void);
|
|
void Netchan_Transmit (netchan_t *chan, int length, qbyte *data);
|
|
void Netchan_OutOfBand (netsrc_t sock, netadr_t adr, int length, qbyte *data);
|
|
void VARGS Netchan_OutOfBandPrint (netsrc_t sock, netadr_t adr, char *format, ...);
|
|
void VARGS Netchan_OutOfBandTPrintf (netsrc_t sock, netadr_t adr, int language, translation_t text, ...);
|
|
qboolean Netchan_Process (netchan_t *chan);
|
|
void Netchan_Setup (netsrc_t sock, netchan_t *chan, netadr_t adr, int qport);
|
|
|
|
qboolean Netchan_CanPacket (netchan_t *chan);
|
|
qboolean Netchan_CanReliable (netchan_t *chan);
|
|
|
|
#ifdef HUFFNETWORK
|
|
int Huff_PreferedCompressionCRC (void);
|
|
qboolean Huff_CompressionCRC(int crc);
|
|
void Huff_CompressPacket(sizebuf_t *msg, int offset);
|
|
void Huff_DecompressPacket(sizebuf_t *msg, int offset);
|
|
#endif
|
|
|
|
#ifdef NQPROT
|
|
#include "../nqnet/nqnet.h"
|
|
#endif
|
|
|
|
int UDP_OpenSocket (int port, qboolean bcast);
|
|
int IPX_OpenSocket (int port, qboolean bcast);
|
|
void SockadrToNetadr (struct sockaddr_qstorage *s, netadr_t *a);
|
|
qboolean NET_Sleep(int msec, qboolean stdinissocket);
|