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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 1.32 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#include <unistd.h> 45#include <unistd.h>
45#include <arpa/inet.h> 46#include <arpa/inet.h>
47
48#include <algorithm>
46 49
47sockvec clients; 50sockvec clients;
48 51
49/** 52/**
50 * Initializes a connection. Really, it just sets up the data structure, 53 * Initializes a connection. Really, it just sets up the data structure,
51 * 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
52 * client. 55 * client.
53 */ 56 */
54client::client (int fd, const char *peername) 57client::client (int fd, const char *peername)
55: fd (fd), host (strdup (peername)), 58: fd (fd), host (strdup (peername)),
56 socket_ev (this, &client::socket_cb) 59 socket_ev (this, &client::socket_cb),
60 cmd_ev (this, &client::cmd_cb),
61 cc_inv (this), cc_other (this)
57{ 62{
58 { 63 {
59 struct linger linger_opt; 64 struct linger linger_opt;
60 65
61 linger_opt.l_onoff = 0; 66 linger_opt.l_onoff = 0;
62 linger_opt.l_linger = 0; 67 linger_opt.l_linger = 0;
63 68
64 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)))
65 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno)); 70 LOG (llevError, "SO_LINGER: %s\n", strerror (errno));
66 } 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
67 105
68 { 106 {
69 int bufsize = 65535; /*Supposed absolute upper limit */ 107 int bufsize = 65535; /*Supposed absolute upper limit */
70 int oldbufsize; 108 int oldbufsize;
71 int buflen = sizeof (int); 109 int buflen = sizeof (int);
… …
82 120
83 buflen = sizeof (oldbufsize); 121 buflen = sizeof (oldbufsize);
84 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); 122 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
85 } 123 }
86 124
125 state = ST_SETUP;
87 mapmode = Map0Cmd; 126 mapmode = Map0Cmd;
88 darkness = 1; 127 darkness = 1;
89 status = Ns_Add;
90 mapx = 11; 128 mapx = 11;
91 mapy = 11; 129 mapy = 11;
92 itemcmd = 1; /* Default is version item1 command */ 130 itemcmd = 1; /* Default is version item1 command */
93 131
94 faces_sent_len = nrofpixmaps; 132 faces_sent = salloc0<uint8> (nrofpixmaps);
95 faces_sent = (uint8 *)calloc (nrofpixmaps, sizeof (*faces_sent));
96 if (!faces_sent)
97 fatal (OUT_OF_MEMORY);
98 133
99 /* 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
100 * 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
101 * face information. 136 * face information.
102 */ 137 */
103 faces_sent[0] = NS_FACESENT_FACE; 138 faces_sent[0] = NS_FACESENT_FACE;
104 139
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);
105 socket_ev.fd (fd); 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);
106 149
107 // initialisation done, kick it! 150 // initialisation done, kick it!
108
109 {
110 packet sl;
111 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);
112 send_packet (sl);
113 flush (); 152 flush ();
114 } 153
154 // clients are externally referenced by the socket
155 refcnt_inc ();
156 clients.push_back (this);
115 157
116#if 0//TODO 158#if 0//TODO
117 socket_info.nconns++; 159 socket_info.nconns++;
118 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;
119 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;
120#endif 162#endif
121} 163}
122 164
123client::~client () 165client::~client ()
124{ 166{
125 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 ();
126} 195}
127 196
128/** 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. */
129void 198void
130init_ericserver (void) 199init_ericserver (void)
131{ 200{
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); 201 cst_tot.time_start = time (NULL);
138 cst_lst.time_start = time (NULL); 202 cst_lst.time_start = time (NULL);
139 203
140 LOG (llevDebug, "Initialize new client/server data\n"); 204 LOG (llevDebug, "Initialize new client/server data\n");
141 205
… …
155{ 219{
156 LOG (llevDebug, "Freeing all new client/server information.\n"); 220 LOG (llevDebug, "Freeing all new client/server information.\n");
157 free_socket_images (); 221 free_socket_images ();
158} 222}
159 223
160/** 224client *
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) 225client::create (int fd, const char *peername)
198{ 226{
199 if (checkbanned (NULL, peername)) 227 if (checkbanned (NULL, peername))
200 { 228 {
201 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername); 229 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername);
202 return false; 230 return 0;
203 } 231 }
204 else 232 else
205 { 233 {
206 client *ns = new client (dup (fd), peername); 234 client *ns = new client (dup (fd), peername);
207 clients.push_back (ns); 235
236 ns->instantiate (); // effectively a nop right now
237
238 INVOKE_CLIENT (CONNECT, ns);
239
208 return true; 240 return ns;
209 } 241 }
210} 242}
211 243

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