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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.20 by root, Fri Dec 15 19:59:20 2006 UTC vs.
Revision 1.33 by pippijn, Sat Jan 6 14:42:31 2007 UTC

1/* 1/*
2 CrossFire, A Multiplayer game for X-windows 2 CrossFire, A Multiplayer game for X-windows
3 3
4 Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
4 Copyright (C) 2001 Mark Wedel 5 Copyright (C) 2001 Mark Wedel
5 Copyright (C) 1992 Frank Tore Johansen 6 Copyright (C) 1992 Frank Tore Johansen
6 7
7 This program is free software; you can redistribute it and/or modify 8 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by 9 it under the terms of the GNU General Public License as published by
… …
29 * 30 *
30 * Mainly deals with initialization and higher level socket 31 * Mainly deals with initialization and higher level socket
31 * maintenance (checking for lost connections and if data has arrived.) 32 * maintenance (checking for lost connections and if data has arrived.)
32 * The reading of data is handled in ericserver.c 33 * The reading of data is handled in ericserver.c
33 */ 34 */
34
35 35
36#include <global.h> 36#include <global.h>
37#include <sproto.h> 37#include <sproto.h>
38#include <sys/types.h> 38#include <sys/types.h>
39#include <sys/time.h> 39#include <sys/time.h>
40#include <sys/socket.h> 40#include <sys/socket.h>
41#include <netinet/in.h> 41#include <netinet/in.h>
42#include <netinet/tcp.h>
43#include <netinet/ip.h>
42#include <netdb.h> 44#include <netdb.h>
43 45
44#include <unistd.h> 46#include <unistd.h>
45#include <arpa/inet.h> 47#include <arpa/inet.h>
48
49#include <algorithm>
46 50
47sockvec clients; 51sockvec clients;
48 52
49/** 53/**
50 * Initializes a connection. Really, it just sets up the data structure, 54 * Initializes a connection. Really, it just sets up the data structure,
51 * socket setup is handled elsewhere. We do send a version to the 55 * socket setup is handled elsewhere. We do send a version to the
52 * client. 56 * client.
53 */ 57 */
54client::client (int fd, const char *peername) 58client::client (int fd, const char *peername)
55: fd (fd), host (strdup (peername)), 59: fd (fd), host (strdup (peername)),
56 socket_ev (this, &client::socket_cb) 60 socket_ev (this, &client::socket_cb),
61 cmd_ev (this, &client::cmd_cb),
62 cc_inv (this), cc_other (this)
57{ 63{
58 { 64 {
59 struct linger linger_opt; 65 struct linger linger_opt;
60 66
61 linger_opt.l_onoff = 0; 67 linger_opt.l_onoff = 0;
62 linger_opt.l_linger = 0; 68 linger_opt.l_linger = 0;
63 69
64 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) 70 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger)))
65 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno)); 71 LOG (llevError, "SO_LINGER: %s\n", strerror (errno));
66 } 72 }
73
74 {
75 int val = IPTOS_LOWDELAY;
76
77 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val)))
78 LOG (llevError, "IP_TOS: %s\n", strerror (errno));
79 }
80
81 {
82 int val = 1;
83
84 if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val)))
85 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno));
86 }
87
88#ifdef __linux__
89 {
90 int val;
91
92 // set some very aggressive keepalive parameters
93 val = 10;
94 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val)))
95 LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno));
96
97 val = 5;
98 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
99 LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
100
101 val = 1;
102 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val)))
103 LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno));
104 }
105#endif
67 106
68 { 107 {
69 int bufsize = 65535; /*Supposed absolute upper limit */ 108 int bufsize = 65535; /*Supposed absolute upper limit */
70 int oldbufsize; 109 int oldbufsize;
71 int buflen = sizeof (int); 110 int buflen = sizeof (int);
… …
82 121
83 buflen = sizeof (oldbufsize); 122 buflen = sizeof (oldbufsize);
84 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); 123 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
85 } 124 }
86 125
126 state = ST_SETUP;
87 mapmode = Map0Cmd; 127 mapmode = Map0Cmd;
88 darkness = 1; 128 darkness = 1;
89 status = Ns_Add;
90 mapx = 11; 129 mapx = 11;
91 mapy = 11; 130 mapy = 11;
92 itemcmd = 1; /* Default is version item1 command */ 131 itemcmd = 1; /* Default is version item1 command */
93 132
94 faces_sent_len = nrofpixmaps; 133 faces_sent = salloc0<uint8> (nrofpixmaps);
95 faces_sent = (uint8 *)calloc (nrofpixmaps, sizeof (*faces_sent));
96 if (!faces_sent)
97 fatal (OUT_OF_MEMORY);
98 134
99 /* Do this so we don't send a face command for the client for 135 /* Do this so we don't send a face command for the client for
100 * this face. Face 0 is sent to the client to say clear 136 * this face. Face 0 is sent to the client to say clear
101 * face information. 137 * face information.
102 */ 138 */
103 faces_sent[0] = NS_FACESENT_FACE; 139 faces_sent[0] = NS_FACESENT_FACE;
104 140
141 // socket I/O is low priority
142 // we prefer to have the server run instead of handling client requests
143 socket_ev.prio (PE_PRIO_NORMAL + 1);
105 socket_ev.fd (fd); 144 socket_ev.fd (fd);
145 socket_ev.poll (PE_R);
146
147 // command handling is even lower priority
148 // that way no client can monopolise the server
149 cmd_ev.prio (PE_PRIO_NORMAL + 2);
106 150
107 // initialisation done, kick it! 151 // initialisation done, kick it!
108
109 {
110 packet sl;
111 sl.printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); 152 send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
112 send_packet (sl);
113 flush (); 153 flush ();
114 } 154
155 // clients are externally referenced by the socket
156 refcnt_inc ();
157 clients.push_back (this);
115 158
116#if 0//TODO 159#if 0//TODO
117 socket_info.nconns++; 160 socket_info.nconns++;
118 if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns; 161 if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns;
119 if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns; 162 if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns;
120#endif 163#endif
121} 164}
122 165
123client::~client () 166client::~client ()
124{ 167{
125 status = Ns_Dead; 168 sockvec::iterator i = find (clients.begin (), clients.end (), this);
169 if (i != clients.end ())
170 clients.erase (i);
171
172 sfree<uint8> (faces_sent, nrofpixmaps);
173 free (stats.range);
174 free (stats.title);
175 free (host);
176}
177
178void
179client::do_destroy ()
180{
181 attachable::do_destroy ();
182
183 if (pl)
184 pl->disconnect ();
185
186 if (fd >= 0)
187 close (fd);
188
189 state = ST_DEAD;
190
191 socket_ev.suspend ();
192 cmd_ev.suspend ();
193
194 // socket now longer references us
195 refcnt_dec ();
126} 196}
127 197
128/** This sets up the socket and reads all the image information into memory. */ 198/** This sets up the socket and reads all the image information into memory. */
129void 199void
130init_ericserver (void) 200init_ericserver (void)
131{ 201{
132 struct sockaddr_in insock;
133 struct linger linger_opt;
134
135 memset (&cst_tot, 0, sizeof (CS_Stats));
136 memset (&cst_lst, 0, sizeof (CS_Stats));
137 cst_tot.time_start = time (NULL); 202 cst_tot.time_start = time (NULL);
138 cst_lst.time_start = time (NULL); 203 cst_lst.time_start = time (NULL);
139 204
140 LOG (llevDebug, "Initialize new client/server data\n"); 205 LOG (llevDebug, "Initialize new client/server data\n");
141 206
… …
155{ 220{
156 LOG (llevDebug, "Freeing all new client/server information.\n"); 221 LOG (llevDebug, "Freeing all new client/server information.\n");
157 free_socket_images (); 222 free_socket_images ();
158} 223}
159 224
160/** 225client *
161 * Frees a socket.
162 * Basically, all we need to do here is free all data structures that
163 * might be associated with the socket. It is up to the caller to
164 * update the list
165 */
166
167void
168free_newsocket (client *ns)
169{
170 if (ns->fd >= 0)
171 close (ns->fd);
172
173 if (ns->stats.range)
174 free (ns->stats.range);
175
176 if (ns->stats.title)
177 free (ns->stats.title);
178
179 free (ns->host);
180
181 ns->fd = -1;
182 ns->stats.range = 0;
183 ns->stats.title = 0;
184 ns->host = 0;
185}
186
187/** Sends the 'goodbye' command to the player, and closes connection. */
188void
189final_free_player (player *pl)
190{
191 pl->socket->send_packet ("goodbye");
192 free_newsocket (pl->socket);
193 free_player (pl);
194}
195
196bool
197add_client (int fd, const char *peername) 226client::create (int fd, const char *peername)
198{ 227{
199 if (checkbanned (NULL, peername)) 228 if (checkbanned (NULL, peername))
200 { 229 {
201 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername); 230 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername);
202 return false; 231 return 0;
203 } 232 }
204 else 233 else
205 { 234 {
206 client *ns = new client (dup (fd), peername); 235 client *ns = new client (dup (fd), peername);
207 clients.push_back (ns); 236
237 ns->instantiate (); // effectively a nop right now
238
239 INVOKE_CLIENT (CONNECT, ns);
240
208 return true; 241 return ns;
209 } 242 }
210} 243}
211 244

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