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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.16 by root, Thu Dec 14 04:30:33 2006 UTC vs.
Revision 1.33 by pippijn, Sat Jan 6 14:42:31 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
… …
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#ifdef HAVE_UNISTD_H
45# include <unistd.h> 46#include <unistd.h>
46#endif
47
48#ifdef HAVE_ARPA_INET_H
49# include <arpa/inet.h> 47#include <arpa/inet.h>
50#endif
51#include <newserver.h>
52 48
49#include <algorithm>
50
53sockvec client_sockets; 51sockvec clients;
54 52
55/** 53/**
56 * Initializes a connection. Really, it just sets up the data structure, 54 * Initializes a connection. Really, it just sets up the data structure,
57 * socket setup is handled elsewhere. We do send a version to the 55 * socket setup is handled elsewhere. We do send a version to the
58 * client. 56 * client.
59 */ 57 */
60client_socket::client_socket (int fd, const char *peername) 58client::client (int fd, const char *peername)
61: fd (fd), host (strdup (peername)) 59: fd (fd), host (strdup (peername)),
60 socket_ev (this, &client::socket_cb),
61 cmd_ev (this, &client::cmd_cb),
62 cc_inv (this), cc_other (this)
62{ 63{
63 { 64 {
64 struct linger linger_opt; 65 struct linger linger_opt;
65 66
66 linger_opt.l_onoff = 0; 67 linger_opt.l_onoff = 0;
67 linger_opt.l_linger = 0; 68 linger_opt.l_linger = 0;
68 69
69 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) 70 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger)))
70 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno)); 71 LOG (llevError, "SO_LINGER: %s\n", strerror (errno));
71 } 72 }
73
74 {
75 int val = IPTOS_LOWDELAY;
76
77 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val)))
78 LOG (llevError, "IP_TOS: %s\n", strerror (errno));
79 }
80
81 {
82 int val = 1;
83
84 if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val)))
85 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno));
86 }
87
88#ifdef __linux__
89 {
90 int val;
91
92 // set some very aggressive keepalive parameters
93 val = 10;
94 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val)))
95 LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno));
96
97 val = 5;
98 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
99 LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
100
101 val = 1;
102 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val)))
103 LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno));
104 }
105#endif
72 106
73 { 107 {
74 int bufsize = 65535; /*Supposed absolute upper limit */ 108 int bufsize = 65535; /*Supposed absolute upper limit */
75 int oldbufsize; 109 int oldbufsize;
76 int buflen = sizeof (int); 110 int buflen = sizeof (int);
… …
87 121
88 buflen = sizeof (oldbufsize); 122 buflen = sizeof (oldbufsize);
89 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); 123 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
90 } 124 }
91 125
126 state = ST_SETUP;
92 mapmode = Map0Cmd; 127 mapmode = Map0Cmd;
93 darkness = 1; 128 darkness = 1;
94 status = Ns_Add;
95 mapx = 11; 129 mapx = 11;
96 mapy = 11; 130 mapy = 11;
97 itemcmd = 1; /* Default is version item1 command */ 131 itemcmd = 1; /* Default is version item1 command */
98 132
99 faces_sent_len = nrofpixmaps; 133 faces_sent = salloc0<uint8> (nrofpixmaps);
100 faces_sent = (uint8 *)calloc (nrofpixmaps, sizeof (*faces_sent));
101 if (!faces_sent)
102 fatal (OUT_OF_MEMORY);
103 134
104 /* Do this so we don't send a face command for the client for 135 /* Do this so we don't send a face command for the client for
105 * this face. Face 0 is sent to the client to say clear 136 * this face. Face 0 is sent to the client to say clear
106 * face information. 137 * face information.
107 */ 138 */
108 faces_sent[0] = NS_FACESENT_FACE; 139 faces_sent[0] = NS_FACESENT_FACE;
109 140
110 can_write = 1; 141 // socket I/O is low priority
142 // we prefer to have the server run instead of handling client requests
143 socket_ev.prio (PE_PRIO_NORMAL + 1);
144 socket_ev.fd (fd);
145 socket_ev.poll (PE_R);
146
147 // command handling is even lower priority
148 // that way no client can monopolise the server
149 cmd_ev.prio (PE_PRIO_NORMAL + 2);
111 150
112 // initialisation done, kick it! 151 // initialisation done, kick it!
113
114 {
115 packet sl;
116 sl.printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); 152 send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
117 send_packet (sl); 153 flush ();
118 } 154
155 // clients are externally referenced by the socket
156 refcnt_inc ();
157 clients.push_back (this);
119 158
120#if 0//TODO 159#if 0//TODO
121 socket_info.nconns++; 160 socket_info.nconns++;
122 if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns; 161 if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns;
123 if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns; 162 if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns;
124#endif 163#endif
125} 164}
126 165
127client_socket::~client_socket () 166client::~client ()
128{ 167{
129 status = Ns_Dead; 168 sockvec::iterator i = find (clients.begin (), clients.end (), this);
169 if (i != clients.end ())
170 clients.erase (i);
171
172 sfree<uint8> (faces_sent, nrofpixmaps);
173 free (stats.range);
174 free (stats.title);
175 free (host);
176}
177
178void
179client::do_destroy ()
180{
181 attachable::do_destroy ();
182
183 if (pl)
184 pl->disconnect ();
185
186 if (fd >= 0)
187 close (fd);
188
189 state = ST_DEAD;
190
191 socket_ev.suspend ();
192 cmd_ev.suspend ();
193
194 // socket now longer references us
195 refcnt_dec ();
130} 196}
131 197
132/** This sets up the socket and reads all the image information into memory. */ 198/** This sets up the socket and reads all the image information into memory. */
133void 199void
134init_ericserver (void) 200init_ericserver (void)
135{ 201{
136 struct sockaddr_in insock;
137 struct linger linger_opt;
138
139 memset (&cst_tot, 0, sizeof (CS_Stats));
140 memset (&cst_lst, 0, sizeof (CS_Stats));
141 cst_tot.time_start = time (NULL); 202 cst_tot.time_start = time (NULL);
142 cst_lst.time_start = time (NULL); 203 cst_lst.time_start = time (NULL);
143 204
144 LOG (llevDebug, "Initialize new client/server data\n"); 205 LOG (llevDebug, "Initialize new client/server data\n");
145 206
… …
159{ 220{
160 LOG (llevDebug, "Freeing all new client/server information.\n"); 221 LOG (llevDebug, "Freeing all new client/server information.\n");
161 free_socket_images (); 222 free_socket_images ();
162} 223}
163 224
164/** 225client *
165 * Frees a socket.
166 * Basically, all we need to do here is free all data structures that
167 * might be associated with the socket. It is up to the caller to
168 * update the list
169 */
170
171void
172free_newsocket (client_socket *ns)
173{
174 if (ns->fd >= 0)
175 close (ns->fd);
176
177 if (ns->stats.range)
178 free (ns->stats.range);
179
180 if (ns->stats.title)
181 free (ns->stats.title);
182
183 free (ns->host);
184
185 ns->fd = -1;
186 ns->stats.range = 0;
187 ns->stats.title = 0;
188 ns->host = 0;
189}
190
191/** Sends the 'goodbye' command to the player, and closes connection. */
192void
193final_free_player (player *pl)
194{
195 pl->socket->send_packet ("goodbye");
196 free_newsocket (pl->socket);
197 free_player (pl);
198}
199
200bool
201add_client_socket (int fd, const char *peername) 226client::create (int fd, const char *peername)
202{ 227{
203 if (checkbanned (NULL, peername)) 228 if (checkbanned (NULL, peername))
204 { 229 {
205 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername); 230 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername);
206 return false; 231 return 0;
207 } 232 }
208 else 233 else
209 { 234 {
210 client_socket *ns = new client_socket (dup (fd), peername); 235 client *ns = new client (dup (fd), peername);
211 client_sockets.push_back (ns); 236
237 ns->instantiate (); // effectively a nop right now
238
239 INVOKE_CLIENT (CONNECT, ns);
240
212 return true; 241 return ns;
213 } 242 }
214} 243}
215 244

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