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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.21 by root, Sat Dec 16 03:08:26 2006 UTC vs.
Revision 1.41 by root, Wed Mar 14 15:44:47 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 *
… …
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,
… …
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),
57 cmd_ev (this, &client::cmd_cb) 61 cmd_ev (this, &client::cmd_cb),
62 cc_inv (this), cc_other (this)
58{ 63{
64 refcnt_inc (); // the socket is an external reference
65
59 { 66 {
60 struct linger linger_opt; 67 struct linger linger_opt;
61 68
62 linger_opt.l_onoff = 0; 69 linger_opt.l_onoff = 0;
63 linger_opt.l_linger = 0; 70 linger_opt.l_linger = 0;
64 71
65 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)))
66 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno)); 73 LOG (llevError, "SO_LINGER: %s\n", strerror (errno));
67 } 74 }
75
76 {
77 int val = IPTOS_LOWDELAY;
78
79 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val)))
80 LOG (llevError, "IP_TOS: %s\n", strerror (errno));
81 }
82
83 {
84 int val = 1;
85
86 if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val)))
87 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno));
88 }
89
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
68 108
69 { 109 {
70 int bufsize = 65535; /*Supposed absolute upper limit */ 110 int bufsize = 65535; /*Supposed absolute upper limit */
71 int oldbufsize; 111 int oldbufsize;
72 int buflen = sizeof (int); 112 int buflen = sizeof (int);
… …
83 123
84 buflen = sizeof (oldbufsize); 124 buflen = sizeof (oldbufsize);
85 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); 125 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
86 } 126 }
87 127
128 state = ST_SETUP;
88 mapmode = Map0Cmd; 129 mapmode = Map0Cmd;
89 darkness = 1; 130 darkness = 1;
90 status = Ns_Add;
91 mapx = 11; 131 mapx = 11;
92 mapy = 11; 132 mapy = 11;
93 itemcmd = 1; /* Default is version item1 command */ 133 itemcmd = 1; /* Default is version item1 command */
94 134 max_rate = 100000 / (1000000 / MAX_TIME); // ~1mbit is assumed per default
95 faces_sent_len = nrofpixmaps;
96 faces_sent = (uint8 *)calloc (nrofpixmaps, sizeof (*faces_sent));
97 if (!faces_sent)
98 fatal (OUT_OF_MEMORY);
99 135
100 /* Do this so we don't send a face command for the client for 136 /* Do this so we don't send a face command for the client for
101 * this face. Face 0 is sent to the client to say clear 137 * this face. Face 0 is sent to the client to say clear
102 * face information. 138 * face information.
103 */ 139 */
104 faces_sent[0] = NS_FACESENT_FACE; 140 faces_sent[0] = true;
105 141
106 // socket I/O is low priority
107 // we prefer to have the server run instead of handling client requests
108 socket_ev.prio (PE_PRIO_NORMAL + 1); 142 socket_ev.prio (PE_PRIO_NORMAL);
109 socket_ev.fd (fd); 143 socket_ev.fd (fd);
110 socket_ev.poll (PE_R); 144 socket_ev.poll (PE_R);
111 145
112 // command handling is even lower priority
113 // that way no client can monopolise the server
114 cmd_ev.prio (PE_PRIO_NORMAL + 2); 146 cmd_ev.prio (PE_PRIO_NORMAL);
115 147
116 // initialisation done, kick it! 148 // initialisation done, kick it!
117
118 send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); 149 send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
119 flush (); 150 flush ();
120 151
121#if 0//TODO 152 reset_stats ();
122 socket_info.nconns++; 153
123 if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns; 154 clients.insert (this);
124 if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns;
125#endif
126} 155}
127 156
128client::~client () 157client::~client ()
129{ 158{
159 clients.erase (this);
160
161 free (stats.range);
162 free (stats.title);
163 free (host);
164}
165
166void
167client::do_destroy ()
168{
169 attachable::do_destroy ();
170
130 if (pl) 171 if (pl)
131 pl->socket = 0; 172 pl->disconnect ();
132 173
133 if (fd >= 0) 174 if (fd >= 0)
134 close (fd), fd = -1; 175 {
176 send_packet ("goodbye");
177 flush ();
135 178
136 free (stats.range), stats.range = 0; 179 close (fd);
137 free (stats.title), stats.title = 0; 180 }
138 free (host), host = 0;
139}
140 181
141void 182 state = ST_DEAD;
142client::destroy () 183
143{
144 status = Ns_Dead;
145 socket_ev.suspend (); 184 socket_ev.suspend ();
146 cmd_ev.suspend (); 185 cmd_ev.suspend ();
186
187 refcnt_dec (); // socket no longer open
188}
189
190void
191client::reset_stats ()
192{
193 /* we need to clear these to -1 and not zero - otherwise,
194 * if a player quits and starts a new character, we wont
195 * send new values to the client, as things like exp start
196 * at zero.
197 */
198 for (int i = 0; i < NUM_SKILLS; i++)
199 last_skill_exp[i] = -1;
200
201 for (int i = 0; i < NROFATTACKS; i++)
202 last_resist[i] = -1;
203
204 last_weapon_sp = -1;
205 last_level = -1;
206 last_stats.exp = -1;
207 last_weight = (uint32) - 1;
208 last_flags = 0;
209 last_weight = 0;
210 last_weight_limit = 0;
211 last_path_attuned = 0;
212 last_path_repelled = 0;
213 last_path_denied = 0;
214 last_speed = 0;
215 flags = 0;
216
217 static living zero_living;
218 last_stats = zero_living;
147} 219}
148 220
149/** This sets up the socket and reads all the image information into memory. */ 221/** This sets up the socket and reads all the image information into memory. */
150void 222void
151init_ericserver (void) 223init_ericserver (void)
152{ 224{
153 cst_tot.time_start = time (NULL); 225 cst_tot.time_start = time (NULL);
154 cst_lst.time_start = time (NULL); 226 cst_lst.time_start = time (NULL);
155 227
156 LOG (llevDebug, "Initialize new client/server data\n"); 228 LOG (llevDebug, "Initialize new client/server data\n");
157
158 read_client_images ();
159} 229}
160 230
161 231
162/******************************************************************************* 232/*******************************************************************************
163 * 233 *
… …
171{ 241{
172 LOG (llevDebug, "Freeing all new client/server information.\n"); 242 LOG (llevDebug, "Freeing all new client/server information.\n");
173 free_socket_images (); 243 free_socket_images ();
174} 244}
175 245
176/** Sends the 'goodbye' command to the player, and closes connection. */ 246client *
177void
178final_free_player (player *pl)
179{
180 free_player (pl);
181}
182
183bool
184add_client (int fd, const char *peername) 247client::create (int fd, const char *peername)
185{ 248{
186 if (checkbanned (NULL, peername))
187 {
188 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername);
189 return false;
190 }
191 else
192 {
193 client *ns = new client (dup (fd), peername); 249 client *ns = new client (dup (fd), peername);
194 clients.push_back (ns); 250 ns->instantiate (); // effectively a nop right now
195 return true; 251 INVOKE_CLIENT (CONNECT, ns);
196 } 252 return ns;
197} 253}
198 254

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