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 1.17 by root, Thu Dec 14 20:39:54 2006 UTC vs.
Revision 1.32 by root, Wed Dec 27 05:32:26 2006 UTC

… …
29 * 29 *
30 * Mainly deals with initialization and higher level socket 30 * Mainly deals with initialization and higher level socket
31 * maintenance (checking for lost connections and if data has arrived.) 31 * maintenance (checking for lost connections and if data has arrived.)
32 * The reading of data is handled in ericserver.c 32 * The reading of data is handled in ericserver.c
33 */ 33 */
34
35 34
36#include <global.h> 35#include <global.h>
37#include <sproto.h> 36#include <sproto.h>
38#include <sys/types.h> 37#include <sys/types.h>
39#include <sys/time.h> 38#include <sys/time.h>
40#include <sys/socket.h> 39#include <sys/socket.h>
41#include <netinet/in.h> 40#include <netinet/in.h>
41#include <netinet/tcp.h>
42#include <netinet/ip.h>
42#include <netdb.h> 43#include <netdb.h>
43 44
44#ifdef HAVE_UNISTD_H
45# include <unistd.h> 45#include <unistd.h>
46#endif
47
48#ifdef HAVE_ARPA_INET_H
49# include <arpa/inet.h> 46#include <arpa/inet.h>
50#endif
51#include <newserver.h>
52 47
48#include <algorithm>
49
53sockvec client_sockets; 50sockvec clients;
54 51
55/** 52/**
56 * Initializes a connection. Really, it just sets up the data structure, 53 * Initializes a connection. Really, it just sets up the data structure,
57 * socket setup is handled elsewhere. We do send a version to the 54 * socket setup is handled elsewhere. We do send a version to the
58 * client. 55 * client.
59 */ 56 */
60client_socket::client_socket (int fd, const char *peername) 57client::client (int fd, const char *peername)
61: fd (fd), host (strdup (peername)), 58: fd (fd), host (strdup (peername)),
62 socket_ev (this, &client_socket::socket_cb) 59 socket_ev (this, &client::socket_cb),
60 cmd_ev (this, &client::cmd_cb),
61 cc_inv (this), cc_other (this)
63{ 62{
64 { 63 {
65 struct linger linger_opt; 64 struct linger linger_opt;
66 65
67 linger_opt.l_onoff = 0; 66 linger_opt.l_onoff = 0;
68 linger_opt.l_linger = 0; 67 linger_opt.l_linger = 0;
69 68
70 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) 69 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger)))
71 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno)); 70 LOG (llevError, "SO_LINGER: %s\n", strerror (errno));
72 } 71 }
72
73 {
74 int val = IPTOS_LOWDELAY;
75
76 if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val)))
77 LOG (llevError, "IP_TOS: %s\n", strerror (errno));
78 }
79
80 {
81 int val = 1;
82
83 if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val)))
84 LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno));
85 }
86
87#ifdef __linux__
88 {
89 int val;
90
91 // set some very aggressive keepalive parameters
92 val = 10;
93 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val)))
94 LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno));
95
96 val = 5;
97 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val)))
98 LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno));
99
100 val = 1;
101 if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val)))
102 LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno));
103 }
104#endif
73 105
74 { 106 {
75 int bufsize = 65535; /*Supposed absolute upper limit */ 107 int bufsize = 65535; /*Supposed absolute upper limit */
76 int oldbufsize; 108 int oldbufsize;
77 int buflen = sizeof (int); 109 int buflen = sizeof (int);
… …
88 120
89 buflen = sizeof (oldbufsize); 121 buflen = sizeof (oldbufsize);
90 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); 122 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
91 } 123 }
92 124
125 state = ST_SETUP;
93 mapmode = Map0Cmd; 126 mapmode = Map0Cmd;
94 darkness = 1; 127 darkness = 1;
95 status = Ns_Add;
96 mapx = 11; 128 mapx = 11;
97 mapy = 11; 129 mapy = 11;
98 itemcmd = 1; /* Default is version item1 command */ 130 itemcmd = 1; /* Default is version item1 command */
99 131
100 faces_sent_len = nrofpixmaps; 132 faces_sent = salloc0<uint8> (nrofpixmaps);
101 faces_sent = (uint8 *)calloc (nrofpixmaps, sizeof (*faces_sent));
102 if (!faces_sent)
103 fatal (OUT_OF_MEMORY);
104 133
105 /* Do this so we don't send a face command for the client for 134 /* Do this so we don't send a face command for the client for
106 * this face. Face 0 is sent to the client to say clear 135 * this face. Face 0 is sent to the client to say clear
107 * face information. 136 * face information.
108 */ 137 */
109 faces_sent[0] = NS_FACESENT_FACE; 138 faces_sent[0] = NS_FACESENT_FACE;
110 139
111 socket_ev.fd (fd).poll (PE_W).start (); 140 // socket I/O is low priority
141 // we prefer to have the server run instead of handling client requests
142 socket_ev.prio (PE_PRIO_NORMAL + 1);
143 socket_ev.fd (fd);
144 socket_ev.poll (PE_R);
145
146 // command handling is even lower priority
147 // that way no client can monopolise the server
148 cmd_ev.prio (PE_PRIO_NORMAL + 2);
112 149
113 // initialisation done, kick it! 150 // initialisation done, kick it!
114
115 {
116 packet sl;
117 sl.printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); 151 send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
118 send_packet (sl); 152 flush ();
119 } 153
154 // clients are externally referenced by the socket
155 refcnt_inc ();
156 clients.push_back (this);
120 157
121#if 0//TODO 158#if 0//TODO
122 socket_info.nconns++; 159 socket_info.nconns++;
123 if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns; 160 if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns;
124 if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns; 161 if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns;
125#endif 162#endif
126} 163}
127 164
128client_socket::~client_socket () 165client::~client ()
129{ 166{
130 status = Ns_Dead; 167 sockvec::iterator i = find (clients.begin (), clients.end (), this);
168 if (i != clients.end ())
169 clients.erase (i);
170
171 sfree<uint8> (faces_sent, nrofpixmaps);
172 free (stats.range);
173 free (stats.title);
174 free (host);
175}
176
177void
178client::do_destroy ()
179{
180 attachable::do_destroy ();
181
182 if (pl)
183 pl->disconnect ();
184
185 if (fd >= 0)
186 close (fd);
187
188 state = ST_DEAD;
189
190 socket_ev.suspend ();
191 cmd_ev.suspend ();
192
193 // socket now longer references us
194 refcnt_dec ();
131} 195}
132 196
133/** This sets up the socket and reads all the image information into memory. */ 197/** This sets up the socket and reads all the image information into memory. */
134void 198void
135init_ericserver (void) 199init_ericserver (void)
136{ 200{
137 struct sockaddr_in insock;
138 struct linger linger_opt;
139
140 memset (&cst_tot, 0, sizeof (CS_Stats));
141 memset (&cst_lst, 0, sizeof (CS_Stats));
142 cst_tot.time_start = time (NULL); 201 cst_tot.time_start = time (NULL);
143 cst_lst.time_start = time (NULL); 202 cst_lst.time_start = time (NULL);
144 203
145 LOG (llevDebug, "Initialize new client/server data\n"); 204 LOG (llevDebug, "Initialize new client/server data\n");
146 205
… …
160{ 219{
161 LOG (llevDebug, "Freeing all new client/server information.\n"); 220 LOG (llevDebug, "Freeing all new client/server information.\n");
162 free_socket_images (); 221 free_socket_images ();
163} 222}
164 223
165/** 224client *
166 * Frees a socket.
167 * Basically, all we need to do here is free all data structures that
168 * might be associated with the socket. It is up to the caller to
169 * update the list
170 */
171
172void
173free_newsocket (client_socket *ns)
174{
175 if (ns->fd >= 0)
176 close (ns->fd);
177
178 if (ns->stats.range)
179 free (ns->stats.range);
180
181 if (ns->stats.title)
182 free (ns->stats.title);
183
184 free (ns->host);
185
186 ns->fd = -1;
187 ns->stats.range = 0;
188 ns->stats.title = 0;
189 ns->host = 0;
190}
191
192/** Sends the 'goodbye' command to the player, and closes connection. */
193void
194final_free_player (player *pl)
195{
196 pl->socket->send_packet ("goodbye");
197 free_newsocket (pl->socket);
198 free_player (pl);
199}
200
201bool
202add_client_socket (int fd, const char *peername) 225client::create (int fd, const char *peername)
203{ 226{
204 if (checkbanned (NULL, peername)) 227 if (checkbanned (NULL, peername))
205 { 228 {
206 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername); 229 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername);
207 return false; 230 return 0;
208 } 231 }
209 else 232 else
210 { 233 {
211 client_socket *ns = new client_socket (dup (fd), peername); 234 client *ns = new client (dup (fd), peername);
212 client_sockets.push_back (ns); 235
236 ns->instantiate (); // effectively a nop right now
237
238 INVOKE_CLIENT (CONNECT, ns);
239
213 return true; 240 return ns;
214 } 241 }
215} 242}
216 243

Diff Legend

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