1 | /* |
1 | /* |
2 | * This file is part of Crossfire TRT, the Roguelike Realtime MORPG. |
2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
3 | * |
3 | * |
4 | * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team |
4 | * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
5 | * Copyright (©) 2002-2003,2007 Mark Wedel & The Crossfire Development Team |
5 | * Copyright (©) 2002-2003,2007 Mark Wedel & The Crossfire Development Team |
6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
7 | * |
7 | * |
8 | * Crossfire TRT is free software: you can redistribute it and/or modify |
8 | * Deliantra is free software: you can redistribute it and/or modify |
9 | * 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 |
10 | * the Free Software Foundation, either version 3 of the License, or |
10 | * the Free Software Foundation, either version 3 of the License, or |
11 | * (at your option) any later version. |
11 | * (at your option) any later version. |
12 | * |
12 | * |
13 | * This program is distributed in the hope that it will be useful, |
13 | * This program is distributed in the hope that it will be useful, |
… | |
… | |
16 | * GNU General Public License for more details. |
16 | * GNU General Public License for more details. |
17 | * |
17 | * |
18 | * You should have received a copy of the GNU General Public License |
18 | * You should have received a copy of the GNU General Public License |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
20 | * |
20 | * |
21 | * The authors can be reached via e-mail to <crossfire@schmorp.de> |
21 | * The authors can be reached via e-mail to <support@deliantra.net> |
22 | */ |
22 | */ |
23 | |
23 | |
24 | /** |
24 | /** |
25 | * \file |
25 | * \file |
26 | * Main client/server loops. |
26 | * Main client/server loops. |
… | |
… | |
50 | |
50 | |
51 | #define MAX_QUEUE_DEPTH 50 |
51 | #define MAX_QUEUE_DEPTH 50 |
52 | #define MAX_QUEUE_BACKLOG 3. |
52 | #define MAX_QUEUE_BACKLOG 3. |
53 | |
53 | |
54 | // disconnect a socket after this many seconds without an ack |
54 | // disconnect a socket after this many seconds without an ack |
55 | #define SOCKET_TIMEOUT 8. |
55 | #define SOCKET_TIMEOUT 16. |
56 | |
56 | |
57 | void |
57 | void |
58 | client::reset_state () |
58 | client::reset_state () |
59 | { |
59 | { |
60 | if (!pl) |
60 | if (!pl) |
… | |
… | |
75 | reset_state (); |
75 | reset_state (); |
76 | send_packet_printf ("drawinfo %d command queue overflow, ignoring.", NDI_RED); |
76 | send_packet_printf ("drawinfo %d command queue overflow, ignoring.", NDI_RED); |
77 | } |
77 | } |
78 | else |
78 | else |
79 | { |
79 | { |
80 | cmd_queue.push_back (command ()); |
80 | cmd_queue.resize (cmd_queue.size () + 1); |
81 | command &cmd = cmd_queue.back (); |
81 | command &cmd = cmd_queue.back (); |
82 | cmd.stamp = stamp; |
82 | cmd.stamp = stamp; |
83 | cmd.handler = handler; |
83 | cmd.handler = handler; |
84 | cmd.data = salloc<char> (datalen + 1, data); |
84 | cmd.data = salloc<char> (datalen + 1, data); |
85 | cmd.datalen = datalen; |
85 | cmd.datalen = datalen; |
… | |
… | |
95 | { |
95 | { |
96 | command &cmd = cmd_queue.front (); |
96 | command &cmd = cmd_queue.front (); |
97 | |
97 | |
98 | if (cmd.stamp + MAX_QUEUE_BACKLOG < NOW) |
98 | if (cmd.stamp + MAX_QUEUE_BACKLOG < NOW) |
99 | { |
99 | { |
100 | reset_state (); |
100 | reset_state (); // the command might actually reset some movement state etc. |
101 | send_packet_printf ("drawinfo %d ignoring delayed commands.", NDI_RED); |
101 | |
|
|
102 | if (pl) |
|
|
103 | pl->failmsg ( |
|
|
104 | "Cannot keep up with your commands, ignoring them! " |
|
|
105 | "H<Your character cannot keep up with the instructions you give G<him|her>. " |
|
|
106 | "Try issuing commands slower, or, if G<he|she> is incapacitated (paralyzed and so on), " |
|
|
107 | "wait till your character can act again.\n\nIf G<he|she> is permanently stuck, then " |
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108 | "try the B<suicide> command (or use B<chat> to ask somebody to B<invite> you out).>" |
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|
109 | ); |
102 | } |
110 | } |
103 | else |
111 | else |
104 | execute (cmd.handler, cmd.data, cmd.datalen); |
112 | execute (cmd.handler, cmd.data, cmd.datalen); |
105 | |
113 | |
|
|
114 | sfree<char> (cmd.data, cmd.datalen + 1); |
106 | cmd_queue.pop_front (); |
115 | cmd_queue.pop_front (); |
107 | return true; |
116 | return true; |
108 | } |
117 | } |
109 | else |
118 | else |
110 | return false; |
119 | return false; |
… | |
… | |
113 | void |
122 | void |
114 | client::tick () |
123 | client::tick () |
115 | { |
124 | { |
116 | if (!pl || destroyed ()) |
125 | if (!pl || destroyed ()) |
117 | return; |
126 | return; |
|
|
127 | |
|
|
128 | pl->dirty = true; |
118 | |
129 | |
119 | /* Update the players stats once per tick. More efficient than |
130 | /* Update the players stats once per tick. More efficient than |
120 | * sending them whenever they change, and probably just as useful |
131 | * sending them whenever they change, and probably just as useful |
121 | */ |
132 | */ |
122 | esrv_update_stats (pl); |
133 | esrv_update_stats (pl); |
123 | |
134 | |
124 | if (last_weight != -1 && last_weight != WEIGHT (pl->ob)) |
135 | sint32 weight = pl->ob->client_weight (); |
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|
136 | |
|
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137 | if (last_weight != weight) |
125 | { |
138 | { |
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|
139 | pl->ob->update_stats (); |
126 | esrv_update_item (UPD_WEIGHT, pl->ob, pl->ob); |
140 | esrv_update_item (UPD_WEIGHT, pl->ob, pl->ob); |
127 | if (last_weight != WEIGHT (pl->ob)) |
|
|
128 | LOG (llevError, "esrv_update_item(UPD_WEIGHT) did not set player weight: is %lu, should be %lu\n", |
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129 | (unsigned long) last_weight, WEIGHT (pl->ob)); |
|
|
130 | } |
141 | } |
131 | |
142 | |
132 | draw_client_map (pl); |
143 | draw_client_map (pl); |
133 | |
144 | |
134 | if (update_look) |
145 | if (update_look) |
135 | esrv_draw_look (pl); |
146 | esrv_draw_look (pl); |
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|
147 | |
|
|
148 | mapinfo_queue_run (); |
136 | |
149 | |
137 | #if HAVE_TCP_INFO |
150 | #if HAVE_TCP_INFO |
138 | // check time of last ack, and, if too old, kill connection |
151 | // check time of last ack, and, if too old, kill connection |
139 | socklen_t len = sizeof (tcpi); |
152 | socklen_t len = sizeof (tcpi); |
140 | |
153 | |
… | |
… | |
177 | #if HAVE_TCP_INFO |
190 | #if HAVE_TCP_INFO |
178 | // further restrict the available bandwidth by the excess bandwidth available |
191 | // further restrict the available bandwidth by the excess bandwidth available |
179 | max_send = min (max_send, (tcpi.tcpi_snd_cwnd - tcpi.tcpi_unacked + tcpi.tcpi_sacked) * mss); |
192 | max_send = min (max_send, (tcpi.tcpi_snd_cwnd - tcpi.tcpi_unacked + tcpi.tcpi_sacked) * mss); |
180 | #endif |
193 | #endif |
181 | |
194 | |
182 | // if we can split images, round to next-lowest mss |
195 | // round to next-lowest mss |
183 | if (fxix) max_send -= max_send % mss; |
196 | max_send -= max_send % mss; |
184 | |
197 | |
185 | if (ixface.empty ()) |
198 | if (ixface.empty ()) |
186 | { |
199 | { |
187 | // regularly send a new face when queue is empty |
200 | // regularly send a new face when queue is empty |
188 | if (bg_scrub && !--bg_scrub && enable_bg_scrub) |
201 | if (bg_scrub && !--bg_scrub) |
189 | while (scrub_idx < faces.size () - 1) |
202 | while (scrub_idx < faces.size () - 1) |
190 | { |
203 | { |
191 | ++scrub_idx; |
204 | ++scrub_idx; |
192 | |
205 | |
193 | if (!faces_sent [scrub_idx]) |
206 | if (!faces_sent [scrub_idx]) |
… | |
… | |
215 | |
228 | |
216 | ixsend &ix = ixface.back (); |
229 | ixsend &ix = ixface.back (); |
217 | |
230 | |
218 | if (facedata *d = face_data (ix.idx, faceset)) |
231 | if (facedata *d = face_data (ix.idx, faceset)) |
219 | { |
232 | { |
220 | if (fxix) |
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|
221 | { |
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|
222 | // estimate the packet header overhead "ix " + idx + (new)ofs |
233 | // estimate the packet header overhead "ix " + idx + (new)ofs |
223 | int pktlen = 3 + ber32::encoded_size (ix.idx) + ber32::encoded_size (ix.ofs); |
234 | int pktlen = 3 + ber32::encoded_size (ix.idx) + ber32::encoded_size (ix.ofs); |
224 | int chunk = min (avail - packet::hdrlen, MAXSOCKBUF) - pktlen; |
235 | int chunk = min (avail - packet::hdrlen, MAXSOCKBUF) - pktlen; |
225 | |
236 | |
226 | // only transfer something if the amount of data transferred |
237 | // only transfer something if the amount of data transferred |
227 | // has a healthy relation to the header overhead |
238 | // has a healthy relation to the header overhead |
228 | if (chunk < 64) |
239 | if (chunk < 64) |
229 | break; |
240 | break; |
230 | |
241 | |
231 | chunk = min (chunk, (int)ix.ofs); |
242 | chunk = min (chunk, (int)ix.ofs); |
232 | |
243 | |
233 | ix.ofs -= chunk; |
244 | ix.ofs -= chunk; |
234 | |
245 | |
235 | //fprintf (stderr, "i%dx %6d: %5d+%4d (%4d)\n", fxix, ix.idx,ix.ofs,chunk, ixface.size());//D |
246 | //fprintf (stderr, "i%dx %6d: %5d+%4d (%4d)\n", fxix, ix.idx,ix.ofs,chunk, ixface.size());//D |
236 | |
247 | |
237 | packet sl ("ix"); |
248 | packet sl ("ix"); |
238 | |
249 | |
239 | sl << ber32 (ix.idx) |
250 | sl << ber32 (ix.idx) |
240 | << ber32 (ix.ofs) |
251 | << ber32 (ix.ofs) |
241 | << data (d->data.data () + ix.ofs, chunk); |
252 | << data (d->data.data () + ix.ofs, chunk); |
242 | |
253 | |
243 | send_packet (sl); |
254 | send_packet (sl); |
244 | } |
|
|
245 | else |
|
|
246 | { |
|
|
247 | send_image (ix.idx); |
|
|
248 | ix.ofs = 0; |
|
|
249 | } |
|
|
250 | } |
255 | } |
251 | else |
256 | else |
252 | ix.ofs = 0; |
257 | ix.ofs = 0; |
253 | |
258 | |
254 | if (!ix.ofs) |
259 | if (!ix.ofs) |