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 (©) 2002,2007 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 |
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 | #ifndef CLIENT_H |
24 | #ifndef CLIENT_H |
25 | #define CLIENT_H |
25 | #define CLIENT_H |
26 | |
26 | |
27 | #include <deque> |
27 | #include <deque> |
28 | #include <bitset> |
28 | #include <bitset> |
29 | #include <tr1/unordered_set> |
29 | #include <tr1/unordered_set> |
30 | |
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 | |
31 | // (possibly) max. number of objects "per page" in the ground container |
68 | // (possibly) max. number of objects "per page" in the ground container |
32 | #define FLOORBOX_PAGESIZE 50 |
69 | #define FLOORBOX_PAGESIZE 50 |
33 | |
70 | |
34 | struct MapCell |
71 | struct MapCell |
35 | { |
72 | { |
36 | 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 |
37 | int count; /* This is really darkness in the map1 command */ |
74 | int count; /* This is really darkness in the map1 command */ |
38 | faceidx faces[MAP_LAYERS]; |
75 | faceidx faces[MAP_LAYERS]; |
39 | 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 |
40 | unsigned char flags; |
77 | unsigned char flags; |
41 | uint8_t smooth[MAP_LAYERS]; |
78 | uint8_t smooth[MAP_LAYERS]; |
… | |
… | |
107 | { |
144 | { |
108 | tstamp stamp; |
145 | tstamp stamp; |
109 | const packet_type *handler; |
146 | const packet_type *handler; |
110 | char *data; |
147 | char *data; |
111 | int datalen; |
148 | int datalen; |
112 | |
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113 | ~command () |
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114 | { |
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115 | sfree<char> (data, datalen + 1); |
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116 | } |
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117 | }; |
149 | }; |
118 | |
150 | |
119 | /* 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. */ |
120 | #define MAX_PASSWORD_FAILURES 5 |
152 | #define MAX_PASSWORD_FAILURES 5 |
121 | |
153 | |
… | |
… | |
125 | int ACC (RW, fd); |
157 | int ACC (RW, fd); |
126 | unsigned int inbuf_len; // number of bytes valid in inbuf |
158 | unsigned int inbuf_len; // number of bytes valid in inbuf |
127 | statsinfo stats; |
159 | statsinfo stats; |
128 | object_vector_index ACC (RO, active); |
160 | object_vector_index ACC (RO, active); |
129 | player_ptr ACC (RO, pl); |
161 | player_ptr ACC (RO, pl); |
130 | |
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131 | /* The following is the setup for a ring buffer for storing output |
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132 | * data that the OS can't handle right away. |
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133 | */ |
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134 | struct |
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135 | { |
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136 | char data[SOCKETBUFSIZE]; |
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137 | int start; |
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138 | int len; |
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139 | } outputbuffer; |
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140 | |
162 | |
141 | 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) */ |
142 | 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 */ |
143 | |
165 | |
144 | sint8 ACC (RW, last_level); /* Last level we sent to client */ |
166 | sint8 ACC (RW, last_level); /* Last level we sent to client */ |
… | |
… | |
152 | living ACC (RO, last_stats); /* Last stats as sent to client */ |
174 | living ACC (RO, last_stats); /* Last stats as sent to client */ |
153 | float ACC (RW, last_speed); /* Last speed as sent to client */ |
175 | float ACC (RW, last_speed); /* Last speed as sent to client */ |
154 | sint16 ACC (RW, last_resist[NROFATTACKS]);/* last resist values sent to client */ |
176 | sint16 ACC (RW, last_resist[NROFATTACKS]);/* last resist values sent to client */ |
155 | sint64 ACC (RW, last_skill_exp[NUM_SKILLS]);/* shadow register. if != exp. obj update client */ |
177 | sint64 ACC (RW, last_skill_exp[NUM_SKILLS]);/* shadow register. if != exp. obj update client */ |
156 | |
178 | |
157 | bool ACC (RW, force_face0); // client workaround for buggy checksum calculation in gcfclient |
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158 | bool ACC (RW, force_bad_checksum); // client workaround for buggy checksum calculation in gcfclient |
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159 | bool ACC (RW, force_image_newmap); // client workaround for client not redrawing map on image upload |
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160 | bool ACC (RW, enable_bg_scrub); // client workaround, gcfclient becomes unusable if you send it images |
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161 | |
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162 | bool ACC (RW, afk); /* player is afk */ |
179 | bool ACC (RW, afk); /* player is afk */ |
163 | bool ACC (RW, facecache); /* If true, client is caching images */ |
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164 | bool ACC (RW, sent_scroll); |
180 | bool ACC (RW, sent_scroll); |
165 | bool ACC (RW, sound); /* does the client want sound */ |
181 | bool ACC (RW, sound); /* does the client want sound */ |
166 | bool ACC (RW, newmapcmd); /* Send newmap command when entering new map SMACFIGGEN */ |
182 | bool ACC (RW, newmapcmd); /* Send newmap command when entering new map SMACFIGGEN */ |
167 | bool ACC (RW, plugincmd); // extend the protocol through a plug-in */ |
183 | bool ACC (RW, plugincmd); // extend the protocol through a plug-in */ |
168 | bool ACC (RW, mapinfocmd); // return map info and send map change info |
184 | bool ACC (RW, mapinfocmd); // return map info and send map change info |
169 | uint8_t ACC (RW, extcmd); // call into extensions/plugins |
185 | uint8_t ACC (RW, extcmd); // call into extensions/plugins |
170 | bool ACC (RW, extmap); // extend map comamnd with extra data |
186 | bool ACC (RW, extmap); // extend map command with extra data |
171 | bool ACC (RW, buggy_mapscroll); // client crashes on large mapscrolls |
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172 | bool ACC (RW, darkness); /* True if client wants darkness information */ |
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173 | bool ACC (RW, image2); /* Client wants image2/face2 commands */ |
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174 | uint8_t ACC (RW, fxix); // client implements fx and ix (face|image extended) commands |
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175 | bool ACC (RW, update_look); /* If true, we need to send the look window */ |
187 | bool ACC (RW, update_look); /* If true, we need to send the look window */ |
176 | bool ACC (RW, has_readable_type); /* If true client accept additional text information */ |
188 | bool ACC (RW, has_readable_type); /* If true client accept additional text information */ |
177 | /* used to arrange text in books, scrolls, or scripted dialogs */ |
189 | /* used to arrange text in books, scrolls, or scripted dialogs */ |
178 | bool ACC (RW, monitor_spells); /* Client wishes to be informed when their spell list changes */ |
190 | bool ACC (RW, monitor_spells); /* Client wishes to be informed when their spell list changes */ |
179 | bool ACC (RW, ext_mapinfos); /* If true client accepts additional info on maps */ |
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180 | /* Below are flags for extedend infos to pass to client |
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181 | * with S->C mapextended command */ |
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182 | bool ACC (RW, EMI_smooth); /* Send smooth in extendmapinfos */ |
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183 | bool ACC (RW, smoothing); // trt-style smoothing |
191 | bool ACC (RW, smoothing); // deliantra-style smoothing |
184 | bool ACC (RW, can_msg); // trt-style text messages |
192 | bool ACC (RW, can_msg); // deliantra-style text messages |
185 | |
193 | |
186 | bool ACC (RW, force_newmap); // force a newmap before next map update |
194 | bool ACC (RW, force_newmap); // force a newmap before next map update |
187 | uint32 ACC (RW, supported_readables); /* each bit is a readable supported by client */ |
195 | uint32 ACC (RW, supported_readables); /* each bit is a readable supported by client */ |
188 | uint32 ACC (RW, cs_version), ACC (RW, sc_version); /* versions of the client */ |
196 | uint32 ACC (RW, cs_version), ACC (RW, sc_version); /* versions of the client */ |
189 | uint16 ACC (RW, look_position); /* start of drawing of look window */ |
197 | uint16 ACC (RW, look_position); /* start of drawing of look window */ |
190 | uint16 ACC (RW, mss); // likely tcp maximum segment size |
198 | uint16 ACC (RW, mss); // likely tcp maximum segment size |
191 | uint8 ACC (RW, mapmode); /* Type of map commands the client wants. */ |
199 | uint8 ACC (RW, mapmode); /* Type of map commands the client wants. */ |
192 | uint8 ACC (RW, mapx), ACC (RW, mapy); /* How large a map the client wants */ |
200 | uint8 ACC (RW, mapx), ACC (RW, mapy); /* How large a map the client wants */ |
193 | uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */ |
201 | uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */ |
194 | |
202 | |
195 | maptile *ACC (RW, current_map); // CF+ last/current player map |
203 | maptile_ptr ACC (RW, current_map); // CF+ last/current player map |
196 | region *ACC (RW, current_region); // CF+ last/current player region |
204 | region_ptr ACC (RW, current_region); // CF+ last/current player region |
197 | int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position |
205 | int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position |
198 | shstr ACC (RW, version); // CF+ client name/version |
206 | shstr ACC (RW, version); // CF+ client name/version |
199 | uint8 ACC (RW, faceset); // CF+ selected faceset |
207 | uint8 ACC (RW, faceset); // CF+ selected faceset |
200 | |
208 | |
201 | tstamp ACC (RW, last_send); // last data send on socket. |
209 | tstamp ACC (RW, last_send); // last data send on socket. |
202 | |
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203 | int ACC (RW, rtt), ACC (RW, rttvar); /* round-trip time and -variance, if known */ |
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204 | int ACC (RW, outq); // current socket outq length, or 0 if indeterminable |
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205 | |
210 | |
206 | int ACC (RW, rate_avail); // current rate balance |
211 | int ACC (RW, rate_avail); // current rate balance |
207 | int ACC (RW, max_rate); // max. # of bytes to send per tick |
212 | int ACC (RW, max_rate); // max. # of bytes to send per tick |
208 | faceidx ACC (RW, scrub_idx); // which face to send next |
213 | faceidx ACC (RW, scrub_idx); // which face to send next |
209 | int ACC (RW, bg_scrub); // how many ticks till the next background face send |
214 | int ACC (RW, bg_scrub); // how many ticks till the next background face send |
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215 | |
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216 | struct tcp_info tcpi; |
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217 | tstamp next_rate_adjust; |
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218 | |
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219 | unordered_vector<char *> mapinfo_queue; |
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220 | void mapinfo_queue_clear (); |
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221 | void mapinfo_queue_run (); |
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222 | bool mapinfo_try (char *buf); |
210 | |
223 | |
211 | struct ixsend { |
224 | struct ixsend { |
212 | int16_t pri; // unused |
225 | int16_t pri; // unused |
213 | faceidx idx; |
226 | faceidx idx; |
214 | uint32_t ofs; // if != 0, need to send remaining bytes of partial_face |
227 | uint32_t ofs; // if != 0, need to send remaining bytes of partial_face |
… | |
… | |
219 | MTH void flush_fx (); // send fx if required |
232 | MTH void flush_fx (); // send fx if required |
220 | |
233 | |
221 | void do_destroy (); |
234 | void do_destroy (); |
222 | void gather_callbacks (AV *&callbacks, event_type event) const; |
235 | void gather_callbacks (AV *&callbacks, event_type event) const; |
223 | |
236 | |
224 | iow socket_ev; void socket_cb (iow &w, int got); |
237 | iow socket_ev; void socket_cb (iow &w, int revents); |
225 | iw cmd_ev; void cmd_cb (iw &w); |
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226 | |
238 | |
227 | std::deque< command, slice_allocator<command> > cmd_queue; |
239 | std::deque< command, slice_allocator<command> > cmd_queue; |
228 | |
240 | |
229 | // large structures at the end please |
241 | // large structures at the end please |
230 | struct Map lastmap; |
242 | struct Map lastmap; |
… | |
… | |
245 | char msg[MSG_BUF_SIZE]; |
257 | char msg[MSG_BUF_SIZE]; |
246 | } msgbuf[MSG_BUF_COUNT]; |
258 | } msgbuf[MSG_BUF_COUNT]; |
247 | |
259 | |
248 | MTH bool msg_suppressed (const char *msg); |
260 | MTH bool msg_suppressed (const char *msg); |
249 | |
261 | |
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262 | /* The following is the setup for a ring buffer for storing output |
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263 | * data that the OS can't handle right away. |
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264 | * TODO: this member is enourmously large - optimise? |
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265 | */ |
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266 | struct |
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267 | { |
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268 | char data[SOCKETBUFSIZE]; |
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269 | int start; |
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270 | int len; |
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271 | } outputbuffer; |
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272 | |
250 | bool may_execute (const packet_type *pkt) const; |
273 | bool may_execute (const packet_type *pkt) const; |
251 | void execute (const packet_type *pkt, char *data, int datalen); |
274 | void execute (const packet_type *pkt, char *data, int datalen); |
252 | |
275 | |
253 | void queue_command (packet_type *handler, char *data, int datalen); |
276 | void queue_command (packet_type *handler, char *data, int datalen); |
254 | MTH bool handle_command (); |
277 | MTH bool handle_command (); |
… | |
… | |
272 | void send_packet (packet &sl); |
295 | void send_packet (packet &sl); |
273 | |
296 | |
274 | void send_drawinfo (const char *msg, int flags = NDI_BLACK); |
297 | void send_drawinfo (const char *msg, int flags = NDI_BLACK); |
275 | |
298 | |
276 | MTH void send_face (faceidx facenum, int pri = 0); |
299 | MTH void send_face (faceidx facenum, int pri = 0); |
277 | MTH void send_image (faceidx facenum); |
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278 | MTH void send_faces (object *ob); |
300 | MTH void send_faces (object *ob); |
279 | MTH void send_animation (short anim_num); |
301 | MTH void send_animation (short anim_num); |
280 | void send_msg (int color, const char *type, const char *msg); |
302 | void send_msg (int color, const char *type, const char *msg); |
281 | |
303 | |
282 | MTH void play_sound (faceidx sound, int dx = 0, int dy = 0); |
304 | MTH void play_sound (faceidx sound, int dx = 0, int dy = 0); |
… | |
… | |
286 | MTH void floorbox_reset () { look_position = 0; floorbox_update (); } |
308 | MTH void floorbox_reset () { look_position = 0; floorbox_update (); } |
287 | |
309 | |
288 | MTH void tick (); // called every server tick to do housekeeping etc. |
310 | MTH void tick (); // called every server tick to do housekeeping etc. |
289 | |
311 | |
290 | MTH static client *create (int fd, const char *peername); |
312 | MTH static client *create (int fd, const char *peername); |
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313 | MTH static void clock (); |
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314 | MTH static void flush_sockets (); |
291 | |
315 | |
292 | protected: |
316 | protected: |
293 | client (int fd, const char *from_ip); |
317 | client (int fd, const char *from_ip); |
294 | ~client (); |
318 | ~client (); |
295 | }; |
319 | }; |
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320 | |
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321 | #if FOR_PERL |
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322 | ACC (RW, tcpi.tcpi_state); |
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323 | ACC (RW, tcpi.tcpi_ca_state); |
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324 | ACC (RW, tcpi.tcpi_retransmits); |
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325 | ACC (RW, tcpi.tcpi_probes); |
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326 | ACC (RW, tcpi.tcpi_backoff); |
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327 | ACC (RW, tcpi.tcpi_options); |
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328 | ACC (RO, tcpi.tcpi_snd_wscale); |
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329 | ACC (RO, tcpi.tcpi_rcv_wscale); |
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330 | ACC (RW, tcpi.tcpi_rto); |
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331 | ACC (RW, tcpi.tcpi_ato); |
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332 | ACC (RW, tcpi.tcpi_snd_mss); |
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333 | ACC (RW, tcpi.tcpi_rcv_mss); |
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334 | ACC (RW, tcpi.tcpi_unacked); |
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335 | ACC (RW, tcpi.tcpi_sacked); |
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336 | ACC (RW, tcpi.tcpi_lost); |
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337 | ACC (RW, tcpi.tcpi_retrans); |
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338 | ACC (RW, tcpi.tcpi_fackets); |
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339 | ACC (RW, tcpi.tcpi_last_data_sent); |
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340 | ACC (RW, tcpi.tcpi_last_ack_sent); |
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341 | ACC (RW, tcpi.tcpi_last_data_recv); |
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342 | ACC (RW, tcpi.tcpi_last_ack_recv); |
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343 | ACC (RW, tcpi.tcpi_pmtu); |
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344 | ACC (RW, tcpi.tcpi_rcv_ssthresh); |
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345 | ACC (RW, tcpi.tcpi_rtt); |
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346 | ACC (RW, tcpi.tcpi_rttvar); |
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347 | ACC (RW, tcpi.tcpi_snd_ssthresh); |
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348 | ACC (RW, tcpi.tcpi_snd_cwnd); |
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349 | ACC (RW, tcpi.tcpi_advmss); |
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350 | ACC (RW, tcpi.tcpi_reordering); |
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351 | #endif |
296 | |
352 | |
297 | #define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\ |
353 | #define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\ |
298 | ( ((__type)>0) &&\ |
354 | ( ((__type)>0) &&\ |
299 | ((__sockPtr)->has_readable_type) && \ |
355 | ((__sockPtr)->has_readable_type) && \ |
300 | ((__sockPtr)->supported_readables & (1<<(__type))) ) |
356 | ((__sockPtr)->supported_readables & (1<<(__type))) ) |
301 | |
357 | |
302 | /* Constants in the form EMI_ is for extended map infos. |
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303 | * Even if the client select the additionnal infos it wants |
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304 | * on the map, there may exist cases where this whole info |
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305 | * is not given in one buch but in separate bunches. This |
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306 | * is done performance reasons (imagine some info related to |
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307 | * a visible object and another info related to a 4 square |
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308 | * width and height area). At the begin of an extended info packet |
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309 | * is a bit field. A bit is activated for each extended info |
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310 | * present in the data |
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311 | */ |
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312 | |
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313 | /* Meanings: |
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314 | * EMI_NOREDRAW Take extended infos into account but don't redraw, |
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315 | * some additionnal datas will follow in a new packet |
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316 | * EMI_SMOOTH Datas about smoothing |
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317 | */ |
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318 | #define EMI_NOREDRAW 0x01 |
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319 | #define EMI_SMOOTH 0x02 |
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320 | |
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321 | /* this last one says the bitfield continue un next byte |
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322 | * There may be several on contiguous bytes. So there is 7 |
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323 | * actual bits used per byte, and the number of bytes |
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324 | * is not fixed in protocol |
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325 | */ |
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326 | #define EMI_HASMOREBITS 0x80 |
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327 | |
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328 | #define FACE_TYPES 1 |
358 | #define FACE_TYPES 1 |
329 | #define PNG_FACE_INDEX 0 |
359 | #define PNG_FACE_INDEX 0 |
330 | |
360 | |
331 | #define VERSION_CS 1023 /* version >= 1023 understand setup cmd */ |
361 | #define VERSION_CS 1023 /* version >= 1023 understand setup cmd */ |
332 | #define VERSION_SC 1026 |
362 | #define VERSION_SC 1026 |
333 | //#define VERSION_SC 1027 // requestinfo image_info and image_sums, makes extending faces on the fly impossible |
363 | //#define VERSION_SC 1027 // requestinfo image_info and image_sums, makes extending faces on the fly impossible |
334 | #define VERSION_INFO "Crossfire TRT Server" |
364 | #define VERSION_INFO "Deliantra Server" |
335 | |
365 | |
336 | typedef object_vector<client, &client::active> sockvec; |
366 | typedef object_vector<client, &client::active> sockvec; |
337 | |
367 | |
338 | extern sockvec clients; |
368 | extern sockvec clients; |
339 | |
369 | |
340 | #define for_all_clients(var) \ |
370 | #define for_all_clients(var) \ |
341 | for (int _i = 0; _i < clients.size (); ++_i) \ |
371 | for (int _i = 0; _i < clients.size (); ++_i) \ |
342 | statementvar (client *, var, clients [_i]) |
372 | statementvar (client *, var, clients [_i]) |
343 | |
373 | |
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374 | // returns true when the message needs special (read: perl) treatment |
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375 | static inline bool |
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376 | msg_is_special (const char *msg, bool nl_special = true) |
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377 | { |
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378 | return msg [strcspn (msg, nl_special ? "<&\n" : "<&")]; |
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379 | } |
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380 | |
344 | #endif |
381 | #endif |
345 | |
382 | |