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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.47 by root, Sat Jun 9 22:54:03 2007 UTC vs.
Revision 1.77 by root, Sat Nov 17 23:40:05 2018 UTC

1/* 1/*
2 * This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game. 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 * 3 *
4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team 4 * Copyright (©) 2017,2018 Marc Alexander Lehmann / the Deliantra team
5 * Copyright (©) 2001,2007 Mark Wedel 5 * Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 * 6 *
8 * Crossfire TRT is free software; you can redistribute it and/or modify it 7 * Deliantra is free software: you can redistribute it and/or modify it under
9 * under the terms of the GNU General Public License as published by the Free 8 * the terms of the Affero GNU General Public License as published by the
10 * Software Foundation; either version 2 of the License, or (at your option) 9 * Free Software Foundation, either version 3 of the License, or (at your
11 * any later version. 10 * option) any later version.
12 * 11 *
13 * This program is distributed in the hope that it will be useful, but 12 * This program is distributed in the hope that it will be useful,
14 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * for more details. 15 * GNU General Public License for more details.
17 * 16 *
18 * You should have received a copy of the GNU General Public License along 17 * You should have received a copy of the Affero GNU General Public License
19 * with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51 18 * and the GNU General Public License along with this program. If not, see
20 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 * <http://www.gnu.org/licenses/>.
21 * 20 *
22 * The authors can be reached via e-mail to <crossfire@schmorp.de> 21 * The authors can be reached via e-mail to <support@deliantra.net>
23 */ 22 */
24 23
25/** 24/*
26 * \file
27 * Socket general functions 25 * 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 */ 26 */
35 27
36#include <global.h> 28#include <global.h>
37#include <sproto.h> 29#include <sproto.h>
38#include <sys/types.h> 30#include <sys/types.h>
… …
46#include <unistd.h> 38#include <unistd.h>
47#include <arpa/inet.h> 39#include <arpa/inet.h>
48 40
49#include <algorithm> 41#include <algorithm>
50 42
43// use relatively small values, as we do not expect to receive much,
44// and we do userspace write buffering
45// 8kb limits throughput to roughly 66kb/s
46#define SOCKET_RCVBUF 8192
47#define SOCKET_SNDBUF 16384
48
51sockvec clients; 49sockvec clients;
52 50
53/** 51/**
54 * Initializes a connection. Really, it just sets up the data structure, 52 * Initializes a connection. Really, it just sets up the data structure,
55 * socket setup is handled elsewhere. We do send a version to the 53 * socket setup is handled elsewhere. We do send a version to the
56 * client. 54 * client.
57 */ 55 */
58client::client (int fd, const char *peername) 56client::client (int fd, const char *peername)
59: fd (fd), host (strdup (peername)), 57: fd (fd), host (strdup (peername)),
60 socket_ev (this, &client::socket_cb), 58 socket_ev (this, &client::socket_cb)
61 cmd_ev (this, &client::cmd_cb)
62{ 59{
63 refcnt_inc (); // the socket is an external reference 60 refcnt_inc (); // the socket is an external reference
64 61
65 mss = 1500 - 52; // 1500 typical ethernet frame, 66 typical tcp header overhead 62 mss = 1500 - 52; // 1500 typical ethernet frame, 66 typical tcp header overhead
63
64 socket_timeout = 16.;
66 65
67 { 66 {
68 struct linger linger_opt; 67 struct linger linger_opt;
69 68
70 linger_opt.l_onoff = 0; 69 linger_opt.l_onoff = 0;
… …
74 LOG (llevError, "SO_LINGER: %s\n", strerror (errno)); 73 LOG (llevError, "SO_LINGER: %s\n", strerror (errno));
75 } 74 }
76 75
77 { 76 {
78 int val; 77 int val;
78
79#ifdef SO_RCVBUF
80 val = SOCKET_RCVBUF;
81 if (setsockopt (fd, SOL_SOCKET, SO_RCVBUF, &val, sizeof (val)))
82 LOG (llevError, "SO_RCVBUF: %s\n", strerror (errno));
83#endif
84
85#ifdef SO_SNDBUF
86 val = SOCKET_SNDBUF;
87 if (setsockopt (fd, SOL_SOCKET, SO_SNDBUF, &val, sizeof (val)))
88 LOG (llevError, "SO_SNDBUF: %s\n", strerror (errno));
89#endif
79 90
80#ifdef IP_TOS 91#ifdef IP_TOS
81 val = IPTOS_LOWDELAY; 92 val = IPTOS_LOWDELAY;
82 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val))) 93 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val)))
83 LOG (llevError, "IP_TOS: %s\n", strerror (errno)); 94 LOG (llevError, "IP_TOS: %s\n", strerror (errno));
… …
114 if (!getsockopt (fd, IPPROTO_TCP, TCP_MAXSEG, &val, &sl) && sl == sizeof (val)) 125 if (!getsockopt (fd, IPPROTO_TCP, TCP_MAXSEG, &val, &sl) && sl == sizeof (val))
115 mss = val; 126 mss = val;
116#endif 127#endif
117 } 128 }
118 129
119 {
120 int bufsize = 65535; /*Supposed absolute upper limit */
121 int oldbufsize;
122 int buflen = sizeof (int);
123
124 if (fcntl (fd, F_SETFL, O_NONBLOCK) == -1) 130 if (fcntl (fd, F_SETFL, O_NONBLOCK) == -1)
125 LOG (llevError, "InitConnection: Error on fcntl.\n"); 131 LOG (llevError, "InitConnection: Error on fcntl.\n");
126
127 if (getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen) == -1)
128 oldbufsize = 0;
129
130 if (oldbufsize < bufsize)
131 if (setsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &bufsize, sizeof (&bufsize)))
132 LOG (llevError, "InitConnection: setsockopt unable to set output buf size to %d\n", bufsize);
133
134 buflen = sizeof (oldbufsize);
135 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
136 }
137 132
138 state = ST_SETUP; 133 state = ST_SETUP;
139 mapmode = Map0Cmd;
140 darkness = 1;
141 mapx = 11; 134 mapx = 11;
142 mapy = 11; 135 mapy = 11;
143 itemcmd = 1; /* Default is version item1 command */ 136 itemcmd = 1; /* Default is version item1 command */
144 max_rate = 100000 / (1000000 / MAX_TIME); // ~1mbit is assumed per default 137 max_rate = 100000 / (1000000 / MAX_TIME); // ~1mbit is assumed per default
145 138
146 /* Do this so we don't send a face command for the client for 139 /* Do this so we don't send a face command for the client for
147 * this face. Face 0 is sent to the client to say clear 140 * this face. Face 0 is sent to the client to set meta data
148 * face information. 141 * for following faces in fx.
149 */ 142 */
150 faces_sent[0] = true; 143 faces_sent[0] = true;
144 fx_want [FT_IMAGE] = true; // all clients must support image faces
151 145
152 socket_ev.prio (PE_PRIO_NORMAL); 146 socket_ev.set (fd, EV_READ);
147 socket_ev.prio (2); // one higher than the ticker priority
153 socket_ev.fd (fd); 148 socket_ev.start ();
154 socket_ev.poll (PE_R);
155
156 cmd_ev.prio (PE_PRIO_NORMAL);
157
158 // initialisation done, kick it!
159 send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
160 flush ();
161 149
162 reset_stats (); 150 reset_stats ();
163 151
164 clients.insert (this); 152 clients.insert (this);
165} 153}
166 154
167client::~client () 155client::~client ()
168{ 156{
169 clients.erase (this); 157 clients.erase (this);
170 158
159 while (!ixface.empty ())
160 ix_pop ();
161
162 mapinfo_queue_clear ();
171 free (stats.range); 163 free (stats.range);
172 free (stats.title); 164 free (stats.title);
173 free (host); 165 free (host);
166 free (ws_inbuf);
167}
168
169void
170client::run ()
171{
172 // initialisation done, kick it!
173 INVOKE_CLIENT (CONNECT, this);
174
175 flush ();
174} 176}
175 177
176void 178void
177client::do_destroy () 179client::do_destroy ()
178{ 180{
181 INVOKE_CLIENT (CLIENT_DESTROY, this);
179 attachable::do_destroy (); 182 attachable::do_destroy ();
180 183
181 if (pl) 184 if (pl)
182 pl->disconnect (); 185 pl->disconnect ();
183 186
… …
189 close (fd); 192 close (fd);
190 } 193 }
191 194
192 state = ST_DEAD; 195 state = ST_DEAD;
193 196
194 socket_ev.suspend (); 197 socket_ev.stop ();
195 cmd_ev.suspend ();
196 198
197 refcnt_dec (); // socket no longer open 199 refcnt_dec (); // socket no longer open
198} 200}
199 201
200void 202void
… …
203 /* we need to clear these to -1 and not zero - otherwise, 205 /* we need to clear these to -1 and not zero - otherwise,
204 * if a player quits and starts a new character, we wont 206 * if a player quits and starts a new character, we wont
205 * send new values to the client, as things like exp start 207 * send new values to the client, as things like exp start
206 * at zero. 208 * at zero.
207 */ 209 */
208 for (int i = 0; i < NUM_SKILLS; i++) 210 for (int i = 0; i < array_length (last_skill_exp); i++)
209 last_skill_exp[i] = -1; 211 last_skill_exp[i] = -1;
210 212
211 for (int i = 0; i < NROFATTACKS; i++) 213 for (int i = 0; i < array_length (last_resist); i++)
212 last_resist[i] = -1; 214 last_resist[i] = -1;
213 215
214 last_weapon_sp = -1; 216 last_weapon_sp = -1;
215 last_level = -1; 217 last_level = -1;
216 last_stats.exp = -1; 218 last_stats.exp = -1;
217 last_weight = (uint32) - 1;
218 last_flags = 0; 219 last_flags = 0;
219 last_weight = 0; 220 last_weight = -1;
220 last_weight_limit = 0; 221 last_weight_limit = 0;
221 last_path_attuned = 0; 222 last_path_attuned = 0;
222 last_path_repelled = 0; 223 last_path_repelled = 0;
223 last_path_denied = 0; 224 last_path_denied = 0;
224 last_speed = 0; 225 last_speed = 0;
225 last_flags = 0; 226 last_flags = 0;
226 227
227 static living zero_living; 228 static living zero_living;
228 last_stats = zero_living; 229 last_stats = zero_living;
229} 230}
230 231
231/*******************************************************************************
232 *
233 * Start of functions dealing with freeing of the data.
234 *
235 ******************************************************************************/
236
237/** Free's all the memory that ericserver allocates. */
238void
239free_all_newserver (void)
240{
241 LOG (llevDebug, "Freeing all new client/server information.\n");
242 free_socket_images ();
243}
244
245client * 232client *
246client::create (int fd, const char *peername) 233client::create (int fd, const char *peername)
247{ 234{
248 client *ns = new client (dup (fd), peername); 235 client *ns = new client (dup (fd), peername);
236
249 ns->instantiate (); // effectively a nop right now 237 ns->instantiate (); // effectively a nop right now
250 INVOKE_CLIENT (CONNECT, ns); 238
251 return ns; 239 return ns;
252} 240}
253 241

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