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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.43 by root, Mon Apr 2 18:55:22 2007 UTC vs.
Revision 1.74 by root, Sun Nov 11 04:29:11 2012 UTC

1/* 1/*
2 * CrossFire, A Multiplayer game for X-windows 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 * 3 *
4 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team 4 * Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 * Copyright (C) 2001 Mark Wedel
6 * Copyright (C) 1992 Frank Tore Johansen
7 * 5 *
8 * This program is free software; you can redistribute it and/or modify 6 * Deliantra is free software: you can redistribute it and/or modify it under
9 * it under the terms of the GNU General Public License as published by 7 * the terms of the Affero GNU General Public License as published by the
10 * the Free Software Foundation; either version 2 of the License, or 8 * Free Software Foundation, either version 3 of the License, or (at your
11 * (at your option) any later version. 9 * option) any later version.
12 * 10 *
13 * This program is distributed in the hope that it will be useful, 11 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details. 14 * GNU General Public License for more details.
17 * 15 *
18 * You should have received a copy of the GNU General Public License 16 * You should have received a copy of the Affero GNU General Public License
19 * along with this program; if not, write to the Free Software 17 * and the GNU General Public License along with this program. If not, see
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 18 * <http://www.gnu.org/licenses/>.
21 * 19 *
22 * The author can be reached via e-mail to <crossfire@schmorp.de> 20 * The authors can be reached via e-mail to <support@deliantra.net>
23 */ 21 */
24 22
25/** 23/*
26 * \file
27 * Socket general functions 24 * Socket general functions
28 *
29 * \date 2003-12-02
30 *
31 * Mainly deals with initialization and higher level socket
32 * maintenance (checking for lost connections and if data has arrived.)
33 * The reading of data is handled in ericserver.c
34 */ 25 */
35 26
36#include <global.h> 27#include <global.h>
37#include <sproto.h> 28#include <sproto.h>
38#include <sys/types.h> 29#include <sys/types.h>
… …
46#include <unistd.h> 37#include <unistd.h>
47#include <arpa/inet.h> 38#include <arpa/inet.h>
48 39
49#include <algorithm> 40#include <algorithm>
50 41
42// use relatively small values, as we do not expect to receive much,
43// and we do userspace write buffering
44// 8kb limits throughput to roughly 66kb/s
45#define SOCKET_RCVBUF 8192
46#define SOCKET_SNDBUF 16384
47
51sockvec clients; 48sockvec clients;
52 49
53/** 50/**
54 * Initializes a connection. Really, it just sets up the data structure, 51 * Initializes a connection. Really, it just sets up the data structure,
55 * socket setup is handled elsewhere. We do send a version to the 52 * socket setup is handled elsewhere. We do send a version to the
56 * client. 53 * client.
57 */ 54 */
58client::client (int fd, const char *peername) 55client::client (int fd, const char *peername)
59: fd (fd), host (strdup (peername)), 56: fd (fd), host (strdup (peername)),
60 socket_ev (this, &client::socket_cb), 57 socket_ev (this, &client::socket_cb)
61 cmd_ev (this, &client::cmd_cb),
62 cc_inv (this), cc_other (this)
63{ 58{
64 refcnt_inc (); // the socket is an external reference 59 refcnt_inc (); // the socket is an external reference
65 60
66 mss = 1500 - 52; // 1500 typical ethernet frame, 66 typical tcp header overhead 61 mss = 1500 - 52; // 1500 typical ethernet frame, 66 typical tcp header overhead
62
63 socket_timeout = 16.;
67 64
68 { 65 {
69 struct linger linger_opt; 66 struct linger linger_opt;
70 67
71 linger_opt.l_onoff = 0; 68 linger_opt.l_onoff = 0;
72 linger_opt.l_linger = 0; 69 linger_opt.l_linger = 0;
73 70
74 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) 71 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger)))
75 LOG (llevError, "SO_LINGER: %s\n", strerror (errno)); 72 LOG (llevError, "SO_LINGER: %s\n", strerror (errno));
76 } 73 }
77 74
78 { 75 {
79 int val; 76 int val;
77
78#ifdef SO_RCVBUF
79 val = SOCKET_RCVBUF;
80 if (setsockopt (fd, SOL_SOCKET, SO_RCVBUF, &val, sizeof (val)))
81 LOG (llevError, "SO_RCVBUF: %s\n", strerror (errno));
82#endif
83
84#ifdef SO_SNDBUF
85 val = SOCKET_SNDBUF;
86 if (setsockopt (fd, SOL_SOCKET, SO_SNDBUF, &val, sizeof (val)))
87 LOG (llevError, "SO_SNDBUF: %s\n", strerror (errno));
88#endif
80 89
81#ifdef IP_TOS 90#ifdef IP_TOS
82 val = IPTOS_LOWDELAY; 91 val = IPTOS_LOWDELAY;
83 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val))) 92 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val)))
84 LOG (llevError, "IP_TOS: %s\n", strerror (errno)); 93 LOG (llevError, "IP_TOS: %s\n", strerror (errno));
… …
90 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno)); 99 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno));
91#endif 100#endif
92 101
93 // set some very aggressive keepalive parameters 102 // set some very aggressive keepalive parameters
94#ifdef TCP_KEEPIDLE 103#ifdef TCP_KEEPIDLE
95 val = 10; 104 val = 1;
96 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val))) 105 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val)))
97 LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno)); 106 LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno));
98#endif 107#endif
99 108
100#ifdef TCP_KEEPCNT 109#ifdef TCP_KEEPCNT
101 val = 5; 110 val = 3;
102 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val))) 111 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
103 LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno)); 112 LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
104#endif 113#endif
105 114
106#ifdef TCP_KEEPINTVL 115#ifdef TCP_KEEPINTVL
… …
115 if (!getsockopt (fd, IPPROTO_TCP, TCP_MAXSEG, &val, &sl) && sl == sizeof (val)) 124 if (!getsockopt (fd, IPPROTO_TCP, TCP_MAXSEG, &val, &sl) && sl == sizeof (val))
116 mss = val; 125 mss = val;
117#endif 126#endif
118 } 127 }
119 128
120 {
121 int bufsize = 65535; /*Supposed absolute upper limit */
122 int oldbufsize;
123 int buflen = sizeof (int);
124
125 if (fcntl (fd, F_SETFL, O_NONBLOCK) == -1) 129 if (fcntl (fd, F_SETFL, O_NONBLOCK) == -1)
126 LOG (llevError, "InitConnection: Error on fcntl.\n"); 130 LOG (llevError, "InitConnection: Error on fcntl.\n");
127
128 if (getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen) == -1)
129 oldbufsize = 0;
130
131 if (oldbufsize < bufsize)
132 if (setsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &bufsize, sizeof (&bufsize)))
133 LOG (llevError, "InitConnection: setsockopt unable to set output buf size to %d\n", bufsize);
134
135 buflen = sizeof (oldbufsize);
136 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
137 }
138 131
139 state = ST_SETUP; 132 state = ST_SETUP;
140 mapmode = Map0Cmd;
141 darkness = 1;
142 mapx = 11; 133 mapx = 11;
143 mapy = 11; 134 mapy = 11;
144 itemcmd = 1; /* Default is version item1 command */ 135 itemcmd = 1; /* Default is version item1 command */
145 max_rate = 100000 / (1000000 / MAX_TIME); // ~1mbit is assumed per default 136 max_rate = 100000 / (1000000 / MAX_TIME); // ~1mbit is assumed per default
146 137
147 /* Do this so we don't send a face command for the client for 138 /* Do this so we don't send a face command for the client for
148 * this face. Face 0 is sent to the client to say clear 139 * this face. Face 0 is sent to the client to set meta data
149 * face information. 140 * for following faces in fx.
150 */ 141 */
151 faces_sent[0] = true; 142 faces_sent[0] = true;
143 fx_want [FT_FACE] = true; // all clients must support image faces
152 144
153 socket_ev.prio (PE_PRIO_NORMAL); 145 socket_ev.set (fd, EV_READ);
146 socket_ev.prio (2); // one higher than the ticker priority
154 socket_ev.fd (fd); 147 socket_ev.start ();
155 socket_ev.poll (PE_R);
156
157 cmd_ev.prio (PE_PRIO_NORMAL);
158
159 // initialisation done, kick it!
160 send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
161 flush ();
162 148
163 reset_stats (); 149 reset_stats ();
164 150
165 clients.insert (this); 151 clients.insert (this);
166} 152}
167 153
168client::~client () 154client::~client ()
169{ 155{
170 clients.erase (this); 156 clients.erase (this);
171 157
158 while (!ixface.empty ())
159 ix_pop ();
160
161 mapinfo_queue_clear ();
172 free (stats.range); 162 free (stats.range);
173 free (stats.title); 163 free (stats.title);
174 free (host); 164 free (host);
165 free (ws_inbuf);
166}
167
168void
169client::run ()
170{
171 // initialisation done, kick it!
172 INVOKE_CLIENT (CONNECT, this);
173
174 flush ();
175} 175}
176 176
177void 177void
178client::do_destroy () 178client::do_destroy ()
179{ 179{
180 INVOKE_CLIENT (CLIENT_DESTROY, this);
180 attachable::do_destroy (); 181 attachable::do_destroy ();
181 182
182 if (pl) 183 if (pl)
183 pl->disconnect (); 184 pl->disconnect ();
184 185
… …
190 close (fd); 191 close (fd);
191 } 192 }
192 193
193 state = ST_DEAD; 194 state = ST_DEAD;
194 195
195 socket_ev.suspend (); 196 socket_ev.stop ();
196 cmd_ev.suspend ();
197 197
198 refcnt_dec (); // socket no longer open 198 refcnt_dec (); // socket no longer open
199} 199}
200 200
201void 201void
… …
204 /* we need to clear these to -1 and not zero - otherwise, 204 /* we need to clear these to -1 and not zero - otherwise,
205 * if a player quits and starts a new character, we wont 205 * if a player quits and starts a new character, we wont
206 * send new values to the client, as things like exp start 206 * send new values to the client, as things like exp start
207 * at zero. 207 * at zero.
208 */ 208 */
209 for (int i = 0; i < NUM_SKILLS; i++) 209 for (int i = 0; i < array_length (last_skill_exp); i++)
210 last_skill_exp[i] = -1; 210 last_skill_exp[i] = -1;
211 211
212 for (int i = 0; i < NROFATTACKS; i++) 212 for (int i = 0; i < array_length (last_resist); i++)
213 last_resist[i] = -1; 213 last_resist[i] = -1;
214 214
215 last_weapon_sp = -1; 215 last_weapon_sp = -1;
216 last_level = -1; 216 last_level = -1;
217 last_stats.exp = -1; 217 last_stats.exp = -1;
218 last_weight = (uint32) - 1;
219 last_flags = 0; 218 last_flags = 0;
220 last_weight = 0; 219 last_weight = -1;
221 last_weight_limit = 0; 220 last_weight_limit = 0;
222 last_path_attuned = 0; 221 last_path_attuned = 0;
223 last_path_repelled = 0; 222 last_path_repelled = 0;
224 last_path_denied = 0; 223 last_path_denied = 0;
225 last_speed = 0; 224 last_speed = 0;
226 flags = 0; 225 last_flags = 0;
227 226
228 static living zero_living; 227 static living zero_living;
229 last_stats = zero_living; 228 last_stats = zero_living;
230} 229}
231 230
232/** This sets up the socket and reads all the image information into memory. */
233void
234init_ericserver (void)
235{
236 cst_tot.time_start = time (NULL);
237 cst_lst.time_start = time (NULL);
238
239 LOG (llevDebug, "Initialize new client/server data\n");
240}
241
242
243/*******************************************************************************
244 *
245 * Start of functions dealing with freeing of the data.
246 *
247 ******************************************************************************/
248
249/** Free's all the memory that ericserver allocates. */
250void
251free_all_newserver (void)
252{
253 LOG (llevDebug, "Freeing all new client/server information.\n");
254 free_socket_images ();
255}
256
257client * 231client *
258client::create (int fd, const char *peername) 232client::create (int fd, const char *peername)
259{ 233{
260 client *ns = new client (dup (fd), peername); 234 client *ns = new client (dup (fd), peername);
235
261 ns->instantiate (); // effectively a nop right now 236 ns->instantiate (); // effectively a nop right now
262 INVOKE_CLIENT (CONNECT, ns); 237
263 return ns; 238 return ns;
264} 239}
265 240

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