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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.32 by root, Wed Dec 27 05:32:26 2006 UTC vs.
Revision 1.43 by root, Mon Apr 2 18:55:22 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
9 the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version. 11 * (at your option) any later version.
11 12 *
12 This program is distributed in the hope that it will be useful, 13 * This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details. 16 * GNU General Public License for more details.
16 17 *
17 You should have received a copy of the GNU General Public License 18 * You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software 19 * along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 21 *
21 The author can be reached via e-mail to <crossfire@schmorp.de> 22 * The author can be reached via e-mail to <crossfire@schmorp.de>
22*/ 23 */
23 24
24/** 25/**
25 * \file 26 * \file
26 * Socket general functions 27 * Socket general functions
27 * 28 *
… …
58: fd (fd), host (strdup (peername)), 59: fd (fd), host (strdup (peername)),
59 socket_ev (this, &client::socket_cb), 60 socket_ev (this, &client::socket_cb),
60 cmd_ev (this, &client::cmd_cb), 61 cmd_ev (this, &client::cmd_cb),
61 cc_inv (this), cc_other (this) 62 cc_inv (this), cc_other (this)
62{ 63{
64 refcnt_inc (); // the socket is an external reference
65
66 mss = 1500 - 52; // 1500 typical ethernet frame, 66 typical tcp header overhead
67
63 { 68 {
64 struct linger linger_opt; 69 struct linger linger_opt;
65 70
66 linger_opt.l_onoff = 0; 71 linger_opt.l_onoff = 0;
67 linger_opt.l_linger = 0; 72 linger_opt.l_linger = 0;
… …
69 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) 74 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger)))
70 LOG (llevError, "SO_LINGER: %s\n", strerror (errno)); 75 LOG (llevError, "SO_LINGER: %s\n", strerror (errno));
71 } 76 }
72 77
73 { 78 {
79 int val;
80
81#ifdef IP_TOS
74 int val = IPTOS_LOWDELAY; 82 val = IPTOS_LOWDELAY;
75
76 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val))) 83 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val)))
77 LOG (llevError, "IP_TOS: %s\n", strerror (errno)); 84 LOG (llevError, "IP_TOS: %s\n", strerror (errno));
78 } 85#endif
79 86
80 { 87#ifdef TCP_NODELAY
81 int val = 1; 88 val = 1;
82
83 if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val))) 89 if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val)))
84 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno)); 90 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno));
91#endif
92
93 // set some very aggressive keepalive parameters
94#ifdef TCP_KEEPIDLE
95 val = 10;
96 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val)))
97 LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno));
98#endif
99
100#ifdef TCP_KEEPCNT
101 val = 5;
102 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
103 LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
104#endif
105
106#ifdef TCP_KEEPINTVL
107 val = 1;
108 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val)))
109 LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno));
110#endif
111
112 // try to find the mss value in use
113#ifdef TCP_MAXSEG
114 socklen_t sl = sizeof (val);
115 if (!getsockopt (fd, IPPROTO_TCP, TCP_MAXSEG, &val, &sl) && sl == sizeof (val))
116 mss = val;
117#endif
85 } 118 }
86
87#ifdef __linux__
88 {
89 int val;
90
91 // set some very aggressive keepalive parameters
92 val = 10;
93 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val)))
94 LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno));
95
96 val = 5;
97 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
98 LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
99
100 val = 1;
101 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val)))
102 LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno));
103 }
104#endif
105 119
106 { 120 {
107 int bufsize = 65535; /*Supposed absolute upper limit */ 121 int bufsize = 65535; /*Supposed absolute upper limit */
108 int oldbufsize; 122 int oldbufsize;
109 int buflen = sizeof (int); 123 int buflen = sizeof (int);
… …
126 mapmode = Map0Cmd; 140 mapmode = Map0Cmd;
127 darkness = 1; 141 darkness = 1;
128 mapx = 11; 142 mapx = 11;
129 mapy = 11; 143 mapy = 11;
130 itemcmd = 1; /* Default is version item1 command */ 144 itemcmd = 1; /* Default is version item1 command */
131 145 max_rate = 100000 / (1000000 / MAX_TIME); // ~1mbit is assumed per default
132 faces_sent = salloc0<uint8> (nrofpixmaps);
133 146
134 /* Do this so we don't send a face command for the client for 147 /* Do this so we don't send a face command for the client for
135 * this face. Face 0 is sent to the client to say clear 148 * this face. Face 0 is sent to the client to say clear
136 * face information. 149 * face information.
137 */ 150 */
138 faces_sent[0] = NS_FACESENT_FACE; 151 faces_sent[0] = true;
139 152
140 // socket I/O is low priority
141 // we prefer to have the server run instead of handling client requests
142 socket_ev.prio (PE_PRIO_NORMAL + 1); 153 socket_ev.prio (PE_PRIO_NORMAL);
143 socket_ev.fd (fd); 154 socket_ev.fd (fd);
144 socket_ev.poll (PE_R); 155 socket_ev.poll (PE_R);
145 156
146 // command handling is even lower priority
147 // that way no client can monopolise the server
148 cmd_ev.prio (PE_PRIO_NORMAL + 2); 157 cmd_ev.prio (PE_PRIO_NORMAL);
149 158
150 // initialisation done, kick it! 159 // initialisation done, kick it!
151 send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); 160 send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
152 flush (); 161 flush ();
153 162
154 // clients are externally referenced by the socket 163 reset_stats ();
155 refcnt_inc ();
156 clients.push_back (this);
157 164
158#if 0//TODO 165 clients.insert (this);
159 socket_info.nconns++;
160 if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns;
161 if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns;
162#endif
163} 166}
164 167
165client::~client () 168client::~client ()
166{ 169{
167 sockvec::iterator i = find (clients.begin (), clients.end (), this);
168 if (i != clients.end ())
169 clients.erase (i); 170 clients.erase (this);
170 171
171 sfree<uint8> (faces_sent, nrofpixmaps);
172 free (stats.range); 172 free (stats.range);
173 free (stats.title); 173 free (stats.title);
174 free (host); 174 free (host);
175} 175}
176 176
… …
181 181
182 if (pl) 182 if (pl)
183 pl->disconnect (); 183 pl->disconnect ();
184 184
185 if (fd >= 0) 185 if (fd >= 0)
186 {
187 send_packet ("goodbye");
188 flush ();
189
186 close (fd); 190 close (fd);
191 }
187 192
188 state = ST_DEAD; 193 state = ST_DEAD;
189 194
190 socket_ev.suspend (); 195 socket_ev.suspend ();
191 cmd_ev.suspend (); 196 cmd_ev.suspend ();
192 197
193 // socket now longer references us 198 refcnt_dec (); // socket no longer open
194 refcnt_dec (); 199}
200
201void
202client::reset_stats ()
203{
204 /* we need to clear these to -1 and not zero - otherwise,
205 * if a player quits and starts a new character, we wont
206 * send new values to the client, as things like exp start
207 * at zero.
208 */
209 for (int i = 0; i < NUM_SKILLS; i++)
210 last_skill_exp[i] = -1;
211
212 for (int i = 0; i < NROFATTACKS; i++)
213 last_resist[i] = -1;
214
215 last_weapon_sp = -1;
216 last_level = -1;
217 last_stats.exp = -1;
218 last_weight = (uint32) - 1;
219 last_flags = 0;
220 last_weight = 0;
221 last_weight_limit = 0;
222 last_path_attuned = 0;
223 last_path_repelled = 0;
224 last_path_denied = 0;
225 last_speed = 0;
226 flags = 0;
227
228 static living zero_living;
229 last_stats = zero_living;
195} 230}
196 231
197/** This sets up the socket and reads all the image information into memory. */ 232/** This sets up the socket and reads all the image information into memory. */
198void 233void
199init_ericserver (void) 234init_ericserver (void)
200{ 235{
201 cst_tot.time_start = time (NULL); 236 cst_tot.time_start = time (NULL);
202 cst_lst.time_start = time (NULL); 237 cst_lst.time_start = time (NULL);
203 238
204 LOG (llevDebug, "Initialize new client/server data\n"); 239 LOG (llevDebug, "Initialize new client/server data\n");
205
206 read_client_images ();
207} 240}
208 241
209 242
210/******************************************************************************* 243/*******************************************************************************
211 * 244 *
… …
222} 255}
223 256
224client * 257client *
225client::create (int fd, const char *peername) 258client::create (int fd, const char *peername)
226{ 259{
227 if (checkbanned (NULL, peername))
228 {
229 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername);
230 return 0;
231 }
232 else
233 {
234 client *ns = new client (dup (fd), peername); 260 client *ns = new client (dup (fd), peername);
235
236 ns->instantiate (); // effectively a nop right now 261 ns->instantiate (); // effectively a nop right now
237
238 INVOKE_CLIENT (CONNECT, ns); 262 INVOKE_CLIENT (CONNECT, ns);
239
240 return ns; 263 return ns;
241 }
242} 264}
243 265

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