ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/deliantra/server/socket/init.C
(Generate patch)

Comparing deliantra/server/socket/init.C (file contents):
Revision 1.39 by root, Sun Mar 11 02:12:45 2007 UTC vs.
Revision 1.77 by root, Sat Nov 17 23:40:05 2018 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 (©) 2017,2018 Marc Alexander Lehmann / the Deliantra team
5 * Copyright (C) 2001 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 (C) 1992 Frank Tore Johansen
7 * 6 *
8 * This program is free software; you can redistribute it and/or modify 7 * 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 8 * 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 9 * Free Software Foundation, either version 3 of the License, or (at your
11 * (at your option) any later version. 10 * option) any later version.
12 * 11 *
13 * This program is distributed in the hope that it will be useful, 12 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License 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 17 * 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 18 * and the GNU General Public License along with this program. If not, see
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 * <http://www.gnu.org/licenses/>.
21 * 20 *
22 * The author 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 cc_inv (this), cc_other (this)
63{ 59{
64 refcnt_inc (); // the socket is an external reference 60 refcnt_inc (); // the socket is an external reference
61
62 mss = 1500 - 52; // 1500 typical ethernet frame, 66 typical tcp header overhead
63
64 socket_timeout = 16.;
65 65
66 { 66 {
67 struct linger linger_opt; 67 struct linger linger_opt;
68 68
69 linger_opt.l_onoff = 0; 69 linger_opt.l_onoff = 0;
70 linger_opt.l_linger = 0; 70 linger_opt.l_linger = 0;
71 71
72 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) 72 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger)))
73 LOG (llevError, "SO_LINGER: %s\n", strerror (errno)); 73 LOG (llevError, "SO_LINGER: %s\n", strerror (errno));
74 } 74 }
75 75
76 { 76 {
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
90
91#ifdef IP_TOS
77 int val = IPTOS_LOWDELAY; 92 val = IPTOS_LOWDELAY;
78
79 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val))) 93 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val)))
80 LOG (llevError, "IP_TOS: %s\n", strerror (errno)); 94 LOG (llevError, "IP_TOS: %s\n", strerror (errno));
81 } 95#endif
82 96
83 { 97#ifdef TCP_NODELAY
84 int val = 1; 98 val = 1;
85
86 if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val))) 99 if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val)))
87 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno)); 100 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno));
101#endif
102
103 // set some very aggressive keepalive parameters
104#ifdef TCP_KEEPIDLE
105 val = 1;
106 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val)))
107 LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno));
108#endif
109
110#ifdef TCP_KEEPCNT
111 val = 3;
112 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
113 LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
114#endif
115
116#ifdef TCP_KEEPINTVL
117 val = 1;
118 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val)))
119 LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno));
120#endif
121
122 // try to find the mss value in use
123#ifdef TCP_MAXSEG
124 socklen_t sl = sizeof (val);
125 if (!getsockopt (fd, IPPROTO_TCP, TCP_MAXSEG, &val, &sl) && sl == sizeof (val))
126 mss = val;
127#endif
88 } 128 }
89 129
90#ifdef __linux__
91 {
92 int val;
93
94 // set some very aggressive keepalive parameters
95 val = 10;
96 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val)))
97 LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno));
98
99 val = 5;
100 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
101 LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
102
103 val = 1;
104 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val)))
105 LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno));
106 }
107#endif
108
109 {
110 int bufsize = 65535; /*Supposed absolute upper limit */
111 int oldbufsize;
112 int buflen = sizeof (int);
113
114 if (fcntl (fd, F_SETFL, O_NONBLOCK) == -1) 130 if (fcntl (fd, F_SETFL, O_NONBLOCK) == -1)
115 LOG (llevError, "InitConnection: Error on fcntl.\n"); 131 LOG (llevError, "InitConnection: Error on fcntl.\n");
116
117 if (getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen) == -1)
118 oldbufsize = 0;
119
120 if (oldbufsize < bufsize)
121 if (setsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &bufsize, sizeof (&bufsize)))
122 LOG (llevError, "InitConnection: setsockopt unable to set output buf size to %d\n", bufsize);
123
124 buflen = sizeof (oldbufsize);
125 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
126 }
127 132
128 state = ST_SETUP; 133 state = ST_SETUP;
129 mapmode = Map0Cmd;
130 darkness = 1;
131 mapx = 11; 134 mapx = 11;
132 mapy = 11; 135 mapy = 11;
133 itemcmd = 1; /* Default is version item1 command */ 136 itemcmd = 1; /* Default is version item1 command */
137 max_rate = 100000 / (1000000 / MAX_TIME); // ~1mbit is assumed per default
134 138
135 /* 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
136 * 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
137 * face information. 141 * for following faces in fx.
138 */ 142 */
139 faces_sent[0] = NS_FACESENT_FACE; 143 faces_sent[0] = true;
144 fx_want [FT_IMAGE] = true; // all clients must support image faces
140 145
141 socket_ev.prio (PE_PRIO_NORMAL); 146 socket_ev.set (fd, EV_READ);
147 socket_ev.prio (2); // one higher than the ticker priority
142 socket_ev.fd (fd); 148 socket_ev.start ();
143 socket_ev.poll (PE_R);
144
145 cmd_ev.prio (PE_PRIO_NORMAL);
146
147 // initialisation done, kick it!
148 send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
149 flush ();
150 149
151 reset_stats (); 150 reset_stats ();
152 151
153 clients.insert (this); 152 clients.insert (this);
154} 153}
155 154
156client::~client () 155client::~client ()
157{ 156{
158 clients.erase (this); 157 clients.erase (this);
159 158
159 while (!ixface.empty ())
160 ix_pop ();
161
162 mapinfo_queue_clear ();
160 free (stats.range); 163 free (stats.range);
161 free (stats.title); 164 free (stats.title);
162 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 ();
163} 176}
164 177
165void 178void
166client::do_destroy () 179client::do_destroy ()
167{ 180{
181 INVOKE_CLIENT (CLIENT_DESTROY, this);
168 attachable::do_destroy (); 182 attachable::do_destroy ();
169 183
170 if (pl) 184 if (pl)
171 pl->disconnect (); 185 pl->disconnect ();
172 186
… …
178 close (fd); 192 close (fd);
179 } 193 }
180 194
181 state = ST_DEAD; 195 state = ST_DEAD;
182 196
183 socket_ev.suspend (); 197 socket_ev.stop ();
184 cmd_ev.suspend ();
185 198
186 refcnt_dec (); // socket no longer open 199 refcnt_dec (); // socket no longer open
187} 200}
188 201
189void 202void
… …
192 /* we need to clear these to -1 and not zero - otherwise, 205 /* we need to clear these to -1 and not zero - otherwise,
193 * if a player quits and starts a new character, we wont 206 * if a player quits and starts a new character, we wont
194 * send new values to the client, as things like exp start 207 * send new values to the client, as things like exp start
195 * at zero. 208 * at zero.
196 */ 209 */
197 for (int i = 0; i < NUM_SKILLS; i++) 210 for (int i = 0; i < array_length (last_skill_exp); i++)
198 last_skill_exp[i] = -1; 211 last_skill_exp[i] = -1;
199 212
200 for (int i = 0; i < NROFATTACKS; i++) 213 for (int i = 0; i < array_length (last_resist); i++)
201 last_resist[i] = -1; 214 last_resist[i] = -1;
202 215
203 last_weapon_sp = -1; 216 last_weapon_sp = -1;
204 last_level = -1; 217 last_level = -1;
205 last_stats.exp = -1; 218 last_stats.exp = -1;
206 last_weight = (uint32) - 1;
207 last_flags = 0; 219 last_flags = 0;
208 last_weight = 0; 220 last_weight = -1;
209 last_weight_limit = 0; 221 last_weight_limit = 0;
210 last_path_attuned = 0; 222 last_path_attuned = 0;
211 last_path_repelled = 0; 223 last_path_repelled = 0;
212 last_path_denied = 0; 224 last_path_denied = 0;
213 last_speed = 0; 225 last_speed = 0;
214 flags = 0; 226 last_flags = 0;
215 227
216 static living zero_living; 228 static living zero_living;
217 last_stats = zero_living; 229 last_stats = zero_living;
218} 230}
219 231
220/** This sets up the socket and reads all the image information into memory. */
221void
222init_ericserver (void)
223{
224 cst_tot.time_start = time (NULL);
225 cst_lst.time_start = time (NULL);
226
227 LOG (llevDebug, "Initialize new client/server data\n");
228}
229
230
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

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines