1 | /* |
1 | /* |
2 | * This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game. |
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 (©) 2002,2007 Mark Wedel & Crossfire Development Team |
5 | * Copyright (©) 2002,2007 Mark Wedel & 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 it |
8 | * Deliantra is free software: you can redistribute it and/or modify |
9 | * under the terms of the GNU General Public License as published by the Free |
9 | * it under the terms of the GNU General Public License as published by |
10 | * Software Foundation; either version 2 of the License, or (at your option) |
10 | * the Free Software Foundation, either version 3 of the License, or |
11 | * 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, but |
13 | * This program is distributed in the hope that it will be useful, |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | * 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 along |
18 | * You should have received a copy of the GNU General Public License |
19 | * with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51 |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
20 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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21 | * |
20 | * |
22 | * 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> |
23 | */ |
22 | */ |
24 | |
23 | |
25 | #ifndef CLIENT_H |
24 | #ifndef CLIENT_H |
26 | #define CLIENT_H |
25 | #define CLIENT_H |
27 | |
26 | |
28 | #include <deque> |
27 | #include <deque> |
29 | #include <bitset> |
28 | #include <bitset> |
30 | #include <tr1/unordered_set> |
29 | #include <tr1/unordered_set> |
31 | |
30 | |
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31 | #if HAVE_TCP_INFO |
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32 | # include <netinet/tcp.h> |
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33 | #else |
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34 | struct tcp_info { |
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35 | // dummy |
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36 | int tcpi_state; |
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37 | int tcpi_ca_state; |
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38 | int tcpi_retransmits; |
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39 | int tcpi_probes; |
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40 | int tcpi_backoff; |
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41 | int tcpi_options; |
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42 | int tcpi_snd_wscale; |
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43 | int tcpi_rcv_wscale; |
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44 | int tcpi_rto; |
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45 | int tcpi_ato; |
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46 | int tcpi_snd_mss; |
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47 | int tcpi_rcv_mss; |
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48 | int tcpi_unacked; |
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49 | int tcpi_sacked; |
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50 | int tcpi_lost; |
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51 | int tcpi_retrans; |
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52 | int tcpi_fackets; |
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53 | int tcpi_last_data_sent; |
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54 | int tcpi_last_ack_sent; |
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55 | int tcpi_last_data_recv; |
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56 | int tcpi_last_ack_recv; |
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57 | int tcpi_pmtu; |
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58 | int tcpi_rcv_ssthresh; |
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59 | int tcpi_rtt; |
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60 | int tcpi_rttvar; |
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61 | int tcpi_snd_ssthresh; |
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62 | int tcpi_snd_cwnd; |
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63 | int tcpi_advmss; |
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64 | int tcpi_reordering; |
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65 | }; |
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66 | #endif |
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67 | |
32 | // (possibly) max. number of objects "per page" in the ground container |
68 | // (possibly) max. number of objects "per page" in the ground container |
33 | #define FLOORBOX_PAGESIZE 50 |
69 | #define FLOORBOX_PAGESIZE 50 |
34 | |
70 | |
35 | struct MapCell |
71 | struct MapCell |
36 | { |
72 | { |
37 | tag_t player; // this is, unfortunately, very wasteful of memory space, but pretty bandwidth-efficient |
73 | tag_t player; // this is, unfortunately, very wasteful of memory space, but pretty bandwidth-efficient |
38 | int count; /* This is really darkness in the map1 command */ |
74 | int count; /* This is really darkness in the map1 command */ |
39 | faceidx faces[MAP_LAYERS]; |
75 | faceidx faces[MAP_LAYERS]; |
40 | unsigned char stat_hp; // health of something in this space, or 0 |
76 | unsigned char stat_hp; // health of something in this space, or 0 |
41 | unsigned char flags; |
77 | unsigned char flags; |
42 | uint8_t smooth[MAP_LAYERS]; |
78 | uint8_t smooth[MAP_LAYERS]; |
… | |
… | |
86 | PF_PLAYING = 0x02, // must be in playing state |
122 | PF_PLAYING = 0x02, // must be in playing state |
87 | PF_COMMAND0 = 0x04, // command starts at offset 0 |
123 | PF_COMMAND0 = 0x04, // command starts at offset 0 |
88 | PF_COMMAND6 = 0x08, // command starts at offset 6 |
124 | PF_COMMAND6 = 0x08, // command starts at offset 6 |
89 | }; |
125 | }; |
90 | |
126 | |
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127 | // face type.s bit 0 means "has meta info prepended" |
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128 | enum { |
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129 | FT_FACE = 0 * 2 + 0, // faces (images) |
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130 | FT_MUSIC = 1 * 2 + 1, // background music |
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131 | FT_SOUND = 2 * 2 + 1, // effects |
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132 | FT_RSRC = 3 * 2 + 0, // generic data files |
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133 | FT_NUM, |
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134 | }; |
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135 | |
91 | struct packet_type |
136 | struct packet_type |
92 | { |
137 | { |
93 | const char *name; |
138 | const char *name; |
94 | void *cb; |
139 | void *cb; |
95 | int flags; |
140 | int flags; |
… | |
… | |
99 | { |
144 | { |
100 | tstamp stamp; |
145 | tstamp stamp; |
101 | const packet_type *handler; |
146 | const packet_type *handler; |
102 | char *data; |
147 | char *data; |
103 | int datalen; |
148 | int datalen; |
104 | |
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105 | ~command () |
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106 | { |
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107 | sfree<char> (data, datalen + 1); |
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108 | } |
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109 | }; |
149 | }; |
110 | |
150 | |
111 | /* how many times we are allowed to give the wrong password before being kicked. */ |
151 | /* how many times we are allowed to give the wrong password before being kicked. */ |
112 | #define MAX_PASSWORD_FAILURES 5 |
152 | #define MAX_PASSWORD_FAILURES 5 |
113 | |
153 | |
… | |
… | |
115 | struct client : zero_initialised, attachable |
155 | struct client : zero_initialised, attachable |
116 | { |
156 | { |
117 | int ACC (RW, fd); |
157 | int ACC (RW, fd); |
118 | unsigned int inbuf_len; // number of bytes valid in inbuf |
158 | unsigned int inbuf_len; // number of bytes valid in inbuf |
119 | statsinfo stats; |
159 | statsinfo stats; |
120 | int ACC (RO, active); |
160 | object_vector_index ACC (RO, active); |
121 | |
161 | player_ptr ACC (RO, pl); |
122 | /* The following is the setup for a ring buffer for storing output |
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123 | * data that the OS can't handle right away. |
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124 | */ |
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125 | struct |
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126 | { |
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127 | char data[SOCKETBUFSIZE]; |
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128 | int start; |
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129 | int len; |
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130 | } outputbuffer; |
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131 | |
162 | |
132 | char *ACC (RW, host); /* Which host it is connected from (ip address) */ |
163 | char *ACC (RW, host); /* Which host it is connected from (ip address) */ |
133 | uint8 ACC (RW, state); /* Input state of the player (name, password, etc */ |
164 | uint8 ACC (RW, state); /* Input state of the player (name, password, etc */ |
134 | |
165 | |
135 | sint8 ACC (RW, last_level); /* Last level we sent to client */ |
166 | sint8 ACC (RW, last_level); /* Last level we sent to client */ |
… | |
… | |
155 | bool ACC (RW, sent_scroll); |
186 | bool ACC (RW, sent_scroll); |
156 | bool ACC (RW, sound); /* does the client want sound */ |
187 | bool ACC (RW, sound); /* does the client want sound */ |
157 | bool ACC (RW, newmapcmd); /* Send newmap command when entering new map SMACFIGGEN */ |
188 | bool ACC (RW, newmapcmd); /* Send newmap command when entering new map SMACFIGGEN */ |
158 | bool ACC (RW, plugincmd); // extend the protocol through a plug-in */ |
189 | bool ACC (RW, plugincmd); // extend the protocol through a plug-in */ |
159 | bool ACC (RW, mapinfocmd); // return map info and send map change info |
190 | bool ACC (RW, mapinfocmd); // return map info and send map change info |
160 | bool ACC (RW, extcmd); // call into extensions/plugins |
191 | uint8_t ACC (RW, extcmd); // call into extensions/plugins |
161 | bool ACC (RW, extmap); // extend map comamnd with extra data |
192 | bool ACC (RW, extmap); // extend map comamnd with extra data |
162 | bool ACC (RW, buggy_mapscroll); // client crashes on large mapscrolls |
193 | bool ACC (RW, buggy_mapscroll); // client crashes on large mapscrolls |
163 | bool ACC (RW, darkness); /* True if client wants darkness information */ |
194 | bool ACC (RW, darkness); /* True if client wants darkness information */ |
164 | bool ACC (RW, image2); /* Client wants image2/face2 commands */ |
195 | bool ACC (RW, image2); /* Client wants image2/face2 commands */ |
165 | bool ACC (RW, fxix); // client implements fx and ix (face|image extended) commands |
196 | uint8_t ACC (RW, fxix); // client implements fx and ix (face|image extended) commands |
166 | bool ACC (RW, update_look); /* If true, we need to send the look window */ |
197 | bool ACC (RW, update_look); /* If true, we need to send the look window */ |
167 | bool ACC (RW, has_readable_type); /* If true client accept additional text information */ |
198 | bool ACC (RW, has_readable_type); /* If true client accept additional text information */ |
168 | /* used to arrange text in books, scrolls, or scripted dialogs */ |
199 | /* used to arrange text in books, scrolls, or scripted dialogs */ |
169 | bool ACC (RW, monitor_spells); /* Client wishes to be informed when their spell list changes */ |
200 | bool ACC (RW, monitor_spells); /* Client wishes to be informed when their spell list changes */ |
170 | bool ACC (RW, ext_mapinfos); /* If true client accepts additional info on maps */ |
201 | bool ACC (RW, ext_mapinfos); /* If true client accepts additional info on maps */ |
… | |
… | |
181 | uint16 ACC (RW, mss); // likely tcp maximum segment size |
212 | uint16 ACC (RW, mss); // likely tcp maximum segment size |
182 | uint8 ACC (RW, mapmode); /* Type of map commands the client wants. */ |
213 | uint8 ACC (RW, mapmode); /* Type of map commands the client wants. */ |
183 | uint8 ACC (RW, mapx), ACC (RW, mapy); /* How large a map the client wants */ |
214 | uint8 ACC (RW, mapx), ACC (RW, mapy); /* How large a map the client wants */ |
184 | uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */ |
215 | uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */ |
185 | |
216 | |
186 | maptile *ACC (RW, current_map); // CF+ last/current player map |
217 | maptile_ptr ACC (RW, current_map); // CF+ last/current player map |
187 | region *ACC (RW, current_region); // CF+ last/current player region |
218 | region_ptr ACC (RW, current_region); // CF+ last/current player region |
188 | int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position |
219 | int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position |
189 | shstr ACC (RW, version); // CF+ client name/version |
220 | shstr ACC (RW, version); // CF+ client name/version |
190 | uint8 ACC (RW, faceset); // CF+ selected faceset |
221 | uint8 ACC (RW, faceset); // CF+ selected faceset |
191 | |
222 | |
192 | player_ptr ACC (RO, pl); |
223 | tstamp ACC (RW, last_send); // last data send on socket. |
193 | |
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194 | int ACC (RW, rtt), ACC (RW, rttvar); /* round-trip time and -variance, if known */ |
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195 | |
224 | |
196 | int ACC (RW, rate_avail); // current rate balance |
225 | int ACC (RW, rate_avail); // current rate balance |
197 | int ACC (RW, max_rate); // max. # of bytes to send per tick |
226 | int ACC (RW, max_rate); // max. # of bytes to send per tick |
198 | faceidx ACC (RW, scrub_idx); // which face to send next |
227 | faceidx ACC (RW, scrub_idx); // which face to send next |
199 | int ACC (RW, bg_scrub); // how many ticks till the next background face send |
228 | int ACC (RW, bg_scrub); // how many ticks till the next background face send |
200 | |
229 | |
201 | faceidx partial_face; |
230 | struct tcp_info tcpi; |
202 | uint32 partial_face_ofs; // if != 0, need to send remaining bytes of partial_face |
231 | tstamp next_rate_adjust; |
203 | std::vector<faceidx, slice_allocator<faceidx> > askface; // which faces have been requested by the client |
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204 | |
232 | |
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233 | unordered_vector<char *> mapinfo_queue; |
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234 | void mapinfo_queue_clear (); |
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235 | void mapinfo_queue_run (); |
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236 | bool mapinfo_try (char *buf); |
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237 | |
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238 | struct ixsend { |
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239 | int16_t pri; // unused |
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240 | faceidx idx; |
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241 | uint32_t ofs; // if != 0, need to send remaining bytes of partial_face |
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242 | }; |
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243 | std::vector<ixsend, slice_allocator<ixsend> > ixface; // which faces to send to the client using ix |
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244 | |
205 | std::vector<faceidx, slice_allocator<faceidx> > fxface; // which faces to send using fx |
245 | std::vector<faceidx, slice_allocator<faceidx> > fxface; // which faces to send using fx |
206 | MTH void flush_fx (); // send fx if required |
246 | MTH void flush_fx (); // send fx if required |
207 | |
247 | |
208 | void do_destroy (); |
248 | void do_destroy (); |
209 | void gather_callbacks (AV *&callbacks, event_type event) const; |
249 | void gather_callbacks (AV *&callbacks, event_type event) const; |
210 | |
250 | |
211 | iow socket_ev; void socket_cb (iow &w, int got); |
251 | iow socket_ev; void socket_cb (iow &w, int revents); |
212 | iw cmd_ev; void cmd_cb (iw &w); |
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213 | |
252 | |
214 | std::deque< command, slice_allocator<command> > cmd_queue; |
253 | std::deque< command, slice_allocator<command> > cmd_queue; |
215 | |
254 | |
216 | // large structures at the end please |
255 | // large structures at the end please |
217 | struct Map lastmap; |
256 | struct Map lastmap; |
218 | std::bitset<MAXANIMNUM> anims_sent; |
257 | std::bitset<MAXANIMNUM> anims_sent; |
219 | std::bitset<MAX_FACES> faces_sent; |
258 | std::bitset<MAX_FACES> faces_sent; |
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259 | std::bitset<FT_NUM> fx_want; |
220 | |
260 | |
221 | // if we get an incomplete packet, this is used to hold the data. |
261 | // if we get an incomplete packet, this is used to hold the data. |
222 | // we add 2 byte for the header, one for the trailing 0 byte |
262 | // we add 2 byte for the header, one for the trailing 0 byte |
223 | uint8 inbuf[MAXSOCKBUF + 2 + 1]; |
263 | uint8 inbuf[MAXSOCKBUF + 2 + 1]; |
224 | |
264 | |
… | |
… | |
231 | char msg[MSG_BUF_SIZE]; |
271 | char msg[MSG_BUF_SIZE]; |
232 | } msgbuf[MSG_BUF_COUNT]; |
272 | } msgbuf[MSG_BUF_COUNT]; |
233 | |
273 | |
234 | MTH bool msg_suppressed (const char *msg); |
274 | MTH bool msg_suppressed (const char *msg); |
235 | |
275 | |
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276 | /* The following is the setup for a ring buffer for storing output |
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277 | * data that the OS can't handle right away. |
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278 | * TODO: this member is enourmously large - optimise? |
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279 | */ |
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280 | struct |
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281 | { |
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282 | char data[SOCKETBUFSIZE]; |
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283 | int start; |
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284 | int len; |
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285 | } outputbuffer; |
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286 | |
236 | bool may_execute (const packet_type *pkt) const; |
287 | bool may_execute (const packet_type *pkt) const; |
237 | void execute (const packet_type *pkt, char *data, int datalen); |
288 | void execute (const packet_type *pkt, char *data, int datalen); |
238 | |
289 | |
239 | void queue_command (packet_type *handler, char *data, int datalen); |
290 | void queue_command (packet_type *handler, char *data, int datalen); |
240 | MTH bool handle_command (); |
291 | MTH bool handle_command (); |
… | |
… | |
256 | void send_packet (const char *buf, int len); |
307 | void send_packet (const char *buf, int len); |
257 | void send_packet_printf (const char *format, ...); |
308 | void send_packet_printf (const char *format, ...); |
258 | void send_packet (packet &sl); |
309 | void send_packet (packet &sl); |
259 | |
310 | |
260 | void send_drawinfo (const char *msg, int flags = NDI_BLACK); |
311 | void send_drawinfo (const char *msg, int flags = NDI_BLACK); |
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312 | |
261 | MTH void send_face (faceidx facenum); |
313 | MTH void send_face (faceidx facenum, int pri = 0); |
262 | MTH void send_image (faceidx facenum); |
314 | MTH void send_image (faceidx facenum); |
263 | MTH void send_faces (object *ob); |
315 | MTH void send_faces (object *ob); |
264 | MTH void send_animation (short anim_num); |
316 | MTH void send_animation (short anim_num); |
265 | MTH void send_msg (int color, const char *type, const char *msg); |
317 | void send_msg (int color, const char *type, const char *msg); |
266 | |
318 | |
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319 | MTH void play_sound (faceidx sound, int dx = 0, int dy = 0); |
267 | // called when something under the player changes |
320 | // called when something under the player changes |
268 | MTH void floorbox_update () { update_look = 1; } |
321 | MTH void floorbox_update () { update_look = 1; } |
269 | // called when the player has been moved |
322 | // called when the player has been moved |
270 | MTH void floorbox_reset () { look_position = 0; floorbox_update (); } |
323 | MTH void floorbox_reset () { look_position = 0; floorbox_update (); } |
271 | |
324 | |
272 | MTH void tick (); // called every server tick to do housekeeping etc. |
325 | MTH void tick (); // called every server tick to do housekeeping etc. |
273 | |
326 | |
274 | MTH static client *create (int fd, const char *peername); |
327 | MTH static client *create (int fd, const char *peername); |
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328 | MTH static void clock (); |
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329 | MTH static void flush_sockets (); |
275 | |
330 | |
276 | protected: |
331 | protected: |
277 | client (int fd, const char *from_ip); |
332 | client (int fd, const char *from_ip); |
278 | ~client (); |
333 | ~client (); |
279 | }; |
334 | }; |
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335 | |
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336 | #if FOR_PERL |
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337 | ACC (RW, tcpi.tcpi_state); |
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338 | ACC (RW, tcpi.tcpi_ca_state); |
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339 | ACC (RW, tcpi.tcpi_retransmits); |
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340 | ACC (RW, tcpi.tcpi_probes); |
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341 | ACC (RW, tcpi.tcpi_backoff); |
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342 | ACC (RW, tcpi.tcpi_options); |
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343 | ACC (RO, tcpi.tcpi_snd_wscale); |
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344 | ACC (RO, tcpi.tcpi_rcv_wscale); |
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345 | ACC (RW, tcpi.tcpi_rto); |
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346 | ACC (RW, tcpi.tcpi_ato); |
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347 | ACC (RW, tcpi.tcpi_snd_mss); |
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348 | ACC (RW, tcpi.tcpi_rcv_mss); |
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349 | ACC (RW, tcpi.tcpi_unacked); |
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350 | ACC (RW, tcpi.tcpi_sacked); |
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351 | ACC (RW, tcpi.tcpi_lost); |
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352 | ACC (RW, tcpi.tcpi_retrans); |
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353 | ACC (RW, tcpi.tcpi_fackets); |
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354 | ACC (RW, tcpi.tcpi_last_data_sent); |
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355 | ACC (RW, tcpi.tcpi_last_ack_sent); |
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356 | ACC (RW, tcpi.tcpi_last_data_recv); |
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357 | ACC (RW, tcpi.tcpi_last_ack_recv); |
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358 | ACC (RW, tcpi.tcpi_pmtu); |
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359 | ACC (RW, tcpi.tcpi_rcv_ssthresh); |
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360 | ACC (RW, tcpi.tcpi_rtt); |
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361 | ACC (RW, tcpi.tcpi_rttvar); |
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362 | ACC (RW, tcpi.tcpi_snd_ssthresh); |
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363 | ACC (RW, tcpi.tcpi_snd_cwnd); |
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364 | ACC (RW, tcpi.tcpi_advmss); |
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365 | ACC (RW, tcpi.tcpi_reordering); |
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366 | #endif |
280 | |
367 | |
281 | #define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\ |
368 | #define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\ |
282 | ( ((__type)>0) &&\ |
369 | ( ((__type)>0) &&\ |
283 | ((__sockPtr)->has_readable_type) && \ |
370 | ((__sockPtr)->has_readable_type) && \ |
284 | ((__sockPtr)->supported_readables & (1<<(__type))) ) |
371 | ((__sockPtr)->supported_readables & (1<<(__type))) ) |
… | |
… | |
313 | #define PNG_FACE_INDEX 0 |
400 | #define PNG_FACE_INDEX 0 |
314 | |
401 | |
315 | #define VERSION_CS 1023 /* version >= 1023 understand setup cmd */ |
402 | #define VERSION_CS 1023 /* version >= 1023 understand setup cmd */ |
316 | #define VERSION_SC 1026 |
403 | #define VERSION_SC 1026 |
317 | //#define VERSION_SC 1027 // requestinfo image_info and image_sums, makes extending faces on the fly impossible |
404 | //#define VERSION_SC 1027 // requestinfo image_info and image_sums, makes extending faces on the fly impossible |
318 | #define VERSION_INFO "Crossfire+ Server" |
405 | #define VERSION_INFO "Deliantra Server" |
319 | |
406 | |
320 | typedef object_vector<client, &client::active> sockvec; |
407 | typedef object_vector<client, &client::active> sockvec; |
321 | |
408 | |
322 | extern sockvec clients; |
409 | extern sockvec clients; |
323 | |
410 | |
324 | #define for_all_clients(var) \ |
411 | #define for_all_clients(var) \ |
325 | for (int _i = 0; _i < clients.size (); ++_i) \ |
412 | for (int _i = 0; _i < clients.size (); ++_i) \ |
326 | statementvar (client *, var, clients [_i]) |
413 | statementvar (client *, var, clients [_i]) |
327 | |
414 | |
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415 | // returns true when the message needs special (read: perl) treatment |
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416 | static inline bool |
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417 | msg_is_special (const char *msg, bool nl_special = true) |
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418 | { |
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419 | return msg [strcspn (msg, nl_special ? "<&\n" : "<&")]; |
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420 | } |
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421 | |
328 | #endif |
422 | #endif |
329 | |
423 | |