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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.20 by root, Fri Dec 15 19:59:20 2006 UTC vs.
Revision 1.34 by root, Sun Jan 7 02:39:15 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>
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,
51 * 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
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),
61 cmd_ev (this, &client::cmd_cb),
62 cc_inv (this), cc_other (this)
57{ 63{
64 refcnt_inc (); // the socket is an external reference
65
58 { 66 {
59 struct linger linger_opt; 67 struct linger linger_opt;
60 68
61 linger_opt.l_onoff = 0; 69 linger_opt.l_onoff = 0;
62 linger_opt.l_linger = 0; 70 linger_opt.l_linger = 0;
63 71
64 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)))
65 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno)); 73 LOG (llevError, "SO_LINGER: %s\n", strerror (errno));
66 } 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
67 108
68 { 109 {
69 int bufsize = 65535; /*Supposed absolute upper limit */ 110 int bufsize = 65535; /*Supposed absolute upper limit */
70 int oldbufsize; 111 int oldbufsize;
71 int buflen = sizeof (int); 112 int buflen = sizeof (int);
… …
82 123
83 buflen = sizeof (oldbufsize); 124 buflen = sizeof (oldbufsize);
84 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); 125 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
85 } 126 }
86 127
128 state = ST_SETUP;
87 mapmode = Map0Cmd; 129 mapmode = Map0Cmd;
88 darkness = 1; 130 darkness = 1;
89 status = Ns_Add;
90 mapx = 11; 131 mapx = 11;
91 mapy = 11; 132 mapy = 11;
92 itemcmd = 1; /* Default is version item1 command */ 133 itemcmd = 1; /* Default is version item1 command */
93 134
94 faces_sent_len = nrofpixmaps; 135 faces_sent = salloc0<uint8> (nrofpixmaps);
95 faces_sent = (uint8 *)calloc (nrofpixmaps, sizeof (*faces_sent));
96 if (!faces_sent)
97 fatal (OUT_OF_MEMORY);
98 136
99 /* Do this so we don't send a face command for the client for 137 /* Do this so we don't send a face command for the client for
100 * this face. Face 0 is sent to the client to say clear 138 * this face. Face 0 is sent to the client to say clear
101 * face information. 139 * face information.
102 */ 140 */
103 faces_sent[0] = NS_FACESENT_FACE; 141 faces_sent[0] = NS_FACESENT_FACE;
104 142
143 // socket I/O is low priority
144 // we prefer to have the server run instead of handling client requests
145 socket_ev.prio (PE_PRIO_NORMAL + 1);
105 socket_ev.fd (fd); 146 socket_ev.fd (fd);
147 socket_ev.poll (PE_R);
148
149 // command handling is even lower priority
150 // that way no client can monopolise the server
151 cmd_ev.prio (PE_PRIO_NORMAL + 2);
106 152
107 // initialisation done, kick it! 153 // initialisation done, kick it!
108
109 {
110 packet sl;
111 sl.printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); 154 send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
112 send_packet (sl);
113 flush (); 155 flush ();
114 }
115 156
116#if 0//TODO 157 clients.insert (this);
117 socket_info.nconns++;
118 if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns;
119 if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns;
120#endif
121} 158}
122 159
123client::~client () 160client::~client ()
124{ 161{
125 status = Ns_Dead; 162 clients.erase (this);
163
164 sfree<uint8> (faces_sent, nrofpixmaps);
165 free (stats.range);
166 free (stats.title);
167 free (host);
168}
169
170void
171client::do_destroy ()
172{
173 attachable::do_destroy ();
174
175 if (pl)
176 pl->disconnect ();
177
178 if (fd >= 0)
179 {
180 send_packet ("goodbye");
181 flush ();
182
183 close (fd);
184 }
185
186 state = ST_DEAD;
187
188 socket_ev.suspend ();
189 cmd_ev.suspend ();
190
191 refcnt_dec (); // socket no longer open
126} 192}
127 193
128/** This sets up the socket and reads all the image information into memory. */ 194/** This sets up the socket and reads all the image information into memory. */
129void 195void
130init_ericserver (void) 196init_ericserver (void)
131{ 197{
132 struct sockaddr_in insock;
133 struct linger linger_opt;
134
135 memset (&cst_tot, 0, sizeof (CS_Stats));
136 memset (&cst_lst, 0, sizeof (CS_Stats));
137 cst_tot.time_start = time (NULL); 198 cst_tot.time_start = time (NULL);
138 cst_lst.time_start = time (NULL); 199 cst_lst.time_start = time (NULL);
139 200
140 LOG (llevDebug, "Initialize new client/server data\n"); 201 LOG (llevDebug, "Initialize new client/server data\n");
141 202
… …
155{ 216{
156 LOG (llevDebug, "Freeing all new client/server information.\n"); 217 LOG (llevDebug, "Freeing all new client/server information.\n");
157 free_socket_images (); 218 free_socket_images ();
158} 219}
159 220
160/** 221client *
161 * Frees a socket.
162 * Basically, all we need to do here is free all data structures that
163 * might be associated with the socket. It is up to the caller to
164 * update the list
165 */
166
167void
168free_newsocket (client *ns)
169{
170 if (ns->fd >= 0)
171 close (ns->fd);
172
173 if (ns->stats.range)
174 free (ns->stats.range);
175
176 if (ns->stats.title)
177 free (ns->stats.title);
178
179 free (ns->host);
180
181 ns->fd = -1;
182 ns->stats.range = 0;
183 ns->stats.title = 0;
184 ns->host = 0;
185}
186
187/** Sends the 'goodbye' command to the player, and closes connection. */
188void
189final_free_player (player *pl)
190{
191 pl->socket->send_packet ("goodbye");
192 free_newsocket (pl->socket);
193 free_player (pl);
194}
195
196bool
197add_client (int fd, const char *peername) 222client::create (int fd, const char *peername)
198{ 223{
199 if (checkbanned (NULL, peername)) 224 if (checkbanned (NULL, peername))
200 { 225 {
201 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername); 226 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername);
202 return false; 227 return 0;
203 } 228 }
204 else 229 else
205 { 230 {
206 client *ns = new client (dup (fd), peername); 231 client *ns = new client (dup (fd), peername);
207 clients.push_back (ns); 232
233 ns->instantiate (); // effectively a nop right now
234
235 INVOKE_CLIENT (CONNECT, ns);
236
208 return true; 237 return ns;
209 } 238 }
210} 239}
211 240

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