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 1.19 by root, Thu Dec 14 22:45:41 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#include <unistd.h> 46#include <unistd.h>
45#include <arpa/inet.h> 47#include <arpa/inet.h>
46#include <newserver.h>
47 48
49#include <algorithm>
50
48sockvec client_sockets; 51sockvec clients;
49 52
50/** 53/**
51 * Initializes a connection. Really, it just sets up the data structure, 54 * Initializes a connection. Really, it just sets up the data structure,
52 * 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
53 * client. 56 * client.
54 */ 57 */
55client_socket::client_socket (int fd, const char *peername) 58client::client (int fd, const char *peername)
56: fd (fd), host (strdup (peername)), 59: fd (fd), host (strdup (peername)),
57 socket_ev (this, &client_socket::socket_cb) 60 socket_ev (this, &client::socket_cb),
61 cmd_ev (this, &client::cmd_cb),
62 cc_inv (this), cc_other (this)
58{ 63{
59 { 64 {
60 struct linger linger_opt; 65 struct linger linger_opt;
61 66
62 linger_opt.l_onoff = 0; 67 linger_opt.l_onoff = 0;
63 linger_opt.l_linger = 0; 68 linger_opt.l_linger = 0;
64 69
65 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)))
66 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno)); 71 LOG (llevError, "SO_LINGER: %s\n", strerror (errno));
67 } 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
68 106
69 { 107 {
70 int bufsize = 65535; /*Supposed absolute upper limit */ 108 int bufsize = 65535; /*Supposed absolute upper limit */
71 int oldbufsize; 109 int oldbufsize;
72 int buflen = sizeof (int); 110 int buflen = sizeof (int);
… …
83 121
84 buflen = sizeof (oldbufsize); 122 buflen = sizeof (oldbufsize);
85 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); 123 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
86 } 124 }
87 125
126 state = ST_SETUP;
88 mapmode = Map0Cmd; 127 mapmode = Map0Cmd;
89 darkness = 1; 128 darkness = 1;
90 status = Ns_Add;
91 mapx = 11; 129 mapx = 11;
92 mapy = 11; 130 mapy = 11;
93 itemcmd = 1; /* Default is version item1 command */ 131 itemcmd = 1; /* Default is version item1 command */
94 132
95 faces_sent_len = nrofpixmaps; 133 faces_sent = salloc0<uint8> (nrofpixmaps);
96 faces_sent = (uint8 *)calloc (nrofpixmaps, sizeof (*faces_sent));
97 if (!faces_sent)
98 fatal (OUT_OF_MEMORY);
99 134
100 /* 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
101 * 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
102 * face information. 137 * face information.
103 */ 138 */
104 faces_sent[0] = NS_FACESENT_FACE; 139 faces_sent[0] = NS_FACESENT_FACE;
105 140
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);
106 socket_ev.fd (fd); 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);
107 150
108 // initialisation done, kick it! 151 // initialisation done, kick it!
109
110 {
111 packet sl;
112 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);
113 send_packet (sl);
114 flush (); 153 flush ();
115 } 154
155 // clients are externally referenced by the socket
156 refcnt_inc ();
157 clients.push_back (this);
116 158
117#if 0//TODO 159#if 0//TODO
118 socket_info.nconns++; 160 socket_info.nconns++;
119 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;
120 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;
121#endif 163#endif
122} 164}
123 165
124client_socket::~client_socket () 166client::~client ()
125{ 167{
126 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 ();
127} 196}
128 197
129/** 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. */
130void 199void
131init_ericserver (void) 200init_ericserver (void)
132{ 201{
133 struct sockaddr_in insock;
134 struct linger linger_opt;
135
136 memset (&cst_tot, 0, sizeof (CS_Stats));
137 memset (&cst_lst, 0, sizeof (CS_Stats));
138 cst_tot.time_start = time (NULL); 202 cst_tot.time_start = time (NULL);
139 cst_lst.time_start = time (NULL); 203 cst_lst.time_start = time (NULL);
140 204
141 LOG (llevDebug, "Initialize new client/server data\n"); 205 LOG (llevDebug, "Initialize new client/server data\n");
142 206
… …
156{ 220{
157 LOG (llevDebug, "Freeing all new client/server information.\n"); 221 LOG (llevDebug, "Freeing all new client/server information.\n");
158 free_socket_images (); 222 free_socket_images ();
159} 223}
160 224
161/** 225client *
162 * Frees a socket.
163 * Basically, all we need to do here is free all data structures that
164 * might be associated with the socket. It is up to the caller to
165 * update the list
166 */
167
168void
169free_newsocket (client_socket *ns)
170{
171 if (ns->fd >= 0)
172 close (ns->fd);
173
174 if (ns->stats.range)
175 free (ns->stats.range);
176
177 if (ns->stats.title)
178 free (ns->stats.title);
179
180 free (ns->host);
181
182 ns->fd = -1;
183 ns->stats.range = 0;
184 ns->stats.title = 0;
185 ns->host = 0;
186}
187
188/** Sends the 'goodbye' command to the player, and closes connection. */
189void
190final_free_player (player *pl)
191{
192 pl->socket->send_packet ("goodbye");
193 free_newsocket (pl->socket);
194 free_player (pl);
195}
196
197bool
198add_client_socket (int fd, const char *peername) 226client::create (int fd, const char *peername)
199{ 227{
200 if (checkbanned (NULL, peername)) 228 if (checkbanned (NULL, peername))
201 { 229 {
202 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername); 230 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername);
203 return false; 231 return 0;
204 } 232 }
205 else 233 else
206 { 234 {
207 client_socket *ns = new client_socket (dup (fd), peername); 235 client *ns = new client (dup (fd), peername);
208 client_sockets.push_back (ns); 236
237 ns->instantiate (); // effectively a nop right now
238
239 INVOKE_CLIENT (CONNECT, ns);
240
209 return true; 241 return ns;
210 } 242 }
211} 243}
212 244

Diff Legend

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