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Comparing deliantra/server/socket/lowlevel.C (file contents):
Revision 1.45 by root, Sun Jun 10 02:51:46 2007 UTC vs.
Revision 1.53 by root, Sat Jul 28 12:02:58 2007 UTC

1/* 1/*
2 * This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game. 2 * This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
3 * 3 *
4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team 4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
5 * Copyright (©) 1992,2007 Frank Tore Johansen 5 * Copyright (©) 1992,2007 Frank Tore Johansen
6 * 6 *
7 * Crossfire TRT is free software; you can redistribute it and/or modify it 7 * Crossfire TRT is free software: you can redistribute it and/or modify
8 * under the terms of the GNU General Public License as published by the Free 8 * it under the terms of the GNU General Public License as published by
9 * Software Foundation; either version 2 of the License, or (at your option) 9 * the Free Software Foundation, either version 3 of the License, or
10 * any later version. 10 * (at your option) any later version.
11 * 11 *
12 * This program is distributed in the hope that it will be useful, but 12 * This program is distributed in the hope that it will be useful,
13 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * for more details. 15 * GNU General Public License for more details.
16 * 16 *
17 * You should have received a copy of the GNU General Public License along 17 * You should have received a copy of the GNU General Public License
18 * with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51 18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 * 19 *
21 * The authors can be reached via e-mail to <crossfire@schmorp.de> 20 * The authors can be reached via e-mail to <crossfire@schmorp.de>
22 */ 21 */
23 22
24using namespace std; 23using namespace std;
… …
47 if (destroyed ()) 46 if (destroyed ())
48 return; 47 return;
49 48
50#if HAVE_TCP_INFO 49#if HAVE_TCP_INFO
51 // check about once per second, spread evenly over all clients 50 // check about once per second, spread evenly over all clients
52 if (!((pticks + fd) & 7)) 51 // do this only when player is active
52 if (!((pticks + fd) & 7) && pl && pl->active)
53 { 53 {
54 // check time of last ack, and, if too old, kill connection 54 // check time of last ack, and, if too old, kill connection
55 struct tcp_info tcpi;
56 socklen_t len = sizeof (tcpi); 55 socklen_t len = sizeof (tcpi);
57 56
58 if (!getsockopt (fd, IPPROTO_TCP, TCP_INFO, &tcpi, &len) && len == sizeof (tcpi)) 57 if (!getsockopt (fd, IPPROTO_TCP, TCP_INFO, &tcpi, &len) && len == sizeof (tcpi))
59 { 58 {
60 rtt = tcpi.tcpi_rtt; 59 if (tcpi.tcpi_snd_mss)
61 rttvar = tcpi.tcpi_rttvar; 60 mss = tcpi.tcpi_snd_mss;
61
62 //fprintf (stderr, "uack %d sst %d cwnd %d mss %d pmtu %d\n",
63 // tcpi.tcpi_unacked, tcpi.tcpi_snd_ssthresh, tcpi.tcpi_snd_cwnd, tcpi.tcpi_advmss, tcpi.tcpi_pmtu);
62 64
63 if (tcpi.tcpi_last_ack_recv > int (SOCKET_TIMEOUT * 1000)) 65 if (tcpi.tcpi_last_ack_recv > int (SOCKET_TIMEOUT * 1000))
64 { 66 {
65 send_msg (NDI_RED, "connection-timeout", "safety disconnect due to tcp/ip timeout (no packets received)"); 67 send_msg (NDI_RED | NDI_REPLY, "connection-timeout", "safety disconnect due to tcp/ip timeout (no packets received)");
66 write_outputbuffer (); 68 write_outputbuffer ();
67 69
68 LOG (llevDebug, "connection on fd %d closed due to ack timeout (%u/%u/%u)\n", fd, 70 LOG (llevDebug, "connection on fd %d closed due to ack timeout (%u/%u/%u)\n", fd,
69 (unsigned)tcpi.tcpi_last_ack_recv, (unsigned)tcpi.tcpi_last_data_sent, (unsigned)tcpi.tcpi_unacked); 71 (unsigned)tcpi.tcpi_last_ack_recv, (unsigned)tcpi.tcpi_last_data_sent, (unsigned)tcpi.tcpi_unacked);
70 destroy (); 72 destroy ();
… …
81 */ 83 */
82 84
83 // write a nop to the socket at least every IDLE_NOP seconds. 85 // write a nop to the socket at least every IDLE_NOP seconds.
84 if (!outputbuffer.len) 86 if (!outputbuffer.len)
85 { 87 {
86 if (last_send + IDLE_PING <= NOW) 88 if (last_send + IDLE_PING <= NOW && pl && pl->active)
87 { 89 {
88 // this is a bit ugly, but map1/map1a seem to be the only 90 // this is a bit ugly, but map1/map1a seem to be the only
89 // nop'able commands and they are quite small. 91 // nop'able commands and they are quite small.
90 packet sl (mapmode == Map1Cmd ? "map1" : "map1a"); 92 packet sl (mapmode == Map1Cmd ? "map1" : "map1a");
91 send_packet (sl); 93 send_packet (sl);
… …
162 if (inbuf_len >= 2 + pkt_len) 164 if (inbuf_len >= 2 + pkt_len)
163 return 2 + pkt_len; 165 return 2 + pkt_len;
164 166
165 if (inbuf_len == sizeof (inbuf)) 167 if (inbuf_len == sizeof (inbuf))
166 { 168 {
167 send_packet_printf ("drawinfo %d input buffer overflow - closing connection.", NDI_RED); 169 send_packet_printf ("drawinfo %d input buffer overflow - closing connection.", NDI_RED | NDI_REPLY);
168 destroy (); 170 destroy ();
169 return -1; 171 return -1;
170 } 172 }
171 } 173 }
172 174
… …
266 ((void (*)(char *, int, player *))pkt->cb)((char *)data, datalen, pl); 268 ((void (*)(char *, int, player *))pkt->cb)((char *)data, datalen, pl);
267 else 269 else
268 ((void (*)(char *, int, client *))pkt->cb)((char *)data, datalen, this); 270 ((void (*)(char *, int, client *))pkt->cb)((char *)data, datalen, this);
269 } 271 }
270 else 272 else
271 send_packet_printf ("drawinfo %d ERROR: you cannot execute '%s' now.", NDI_RED, pkt->name); 273 send_packet_printf ("drawinfo %d ERROR: you cannot execute '%s' now.", NDI_RED | NDI_REPLY, pkt->name);
272} 274}
273 275
274bool 276bool
275client::handle_packet () 277client::handle_packet ()
276{ 278{
… …
317 319
318 goto next_packet; 320 goto next_packet;
319 } 321 }
320 322
321 // If we get here, we didn't find a valid command. 323 // If we get here, we didn't find a valid command.
322 send_packet_printf ("drawinfo %d ERROR: command '%s' not supported.", NDI_RED, (char *)inbuf + 2); 324 send_packet_printf ("drawinfo %d ERROR: command '%s' not supported.", NDI_RED | NDI_REPLY, (char *)inbuf + 2);
323next_packet: 325next_packet:
324 skip_packet (pkt_len); 326 skip_packet (pkt_len);
325 327
326 // input buffer has space again 328 // input buffer has space again
327 socket_ev.poll (socket_ev.poll () | PE_R); 329 socket_ev.poll (socket_ev.poll () | PE_R);
… …
507 va_end (ap); 509 va_end (ap);
508 510
509 send_packet (sl); 511 send_packet (sl);
510} 512}
511 513
512void 514// returns true when the message needs special (read: perl) treatment
513client::send_drawinfo (const char *msg, int flags) 515static bool
514{ 516msg_is_special (const char *msg)
515 send_packet_printf ("drawinfo %d %s", flags, msg); 517{
518 return msg [strcspn (msg, "<[&\n")];
516} 519}
517 520
518void 521void
519client::send_msg (int color, const char *type, const char *msg) 522client::send_msg (int color, const char *type, const char *msg)
520{ 523{
524 if (msg_is_special (msg))
525 cfperl_send_msg (this, color, type, msg);
521 if (can_msg) 526 else if (can_msg)
522 send_packet_printf ("msg %d %s %s", color, type, msg); 527 send_packet_printf ("msg %d %s %s", color & NDI_CLIENT_MASK, type, msg);
523 else if (color < 0) 528 else if (color < 0)
524 return; // client cannot handle this 529 return; // client cannot handle this
525 else if (strchr (msg, '<') || strchr (msg, '&'))
526 {
527 //TODO: should escape/modify to old syntax
528 send_packet_printf ("drawinfo %d %s", color, msg);
529 }
530 else 530 else
531 send_packet_printf ("drawinfo %d %s", color, msg); 531 send_packet_printf ("drawinfo %d %s", color & NDI_COLOR_MASK, msg);
532}
533
534void
535client::send_drawinfo (const char *msg, int flags)
536{
537 send_msg (flags, "log", msg);
532} 538}
533 539
534/*********************************************************************** 540/***********************************************************************
535 * 541 *
536 * packet functions/utilities 542 * packet functions/utilities

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