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Comparing deliantra/server/include/client.h (file contents):
Revision 1.50 by root, Fri Apr 27 02:43:04 2007 UTC vs.
Revision 1.87 by root, Mon Oct 12 14:00:58 2009 UTC

1/* 1/*
2 * CrossFire, A Multiplayer game for the X Window System 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 * 3 *
4 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team 4 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 * Copyright (C) 2002 Mark Wedel & Crossfire Development Team 5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6 * Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 * 7 *
8 * This program is free software; you can redistribute it and/or modify 8 * Deliantra is free software: you can redistribute it and/or modify it under
9 * it under the terms of the GNU General Public License as published by 9 * the terms of the Affero GNU General Public License as published by the
10 * the Free Software Foundation; either version 2 of the License, or 10 * Free Software Foundation, either version 3 of the License, or (at your
11 * (at your option) any later version. 11 * 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,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 Affero GNU General Public License
19 * along with this program; if not, write to the Free Software 19 * and the GNU General Public License along with this program. If not, see
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 * <http://www.gnu.org/licenses/>.
21 * 21 *
22 * The author can be reached via e-mail to crossfire@schmorp.de 22 * The authors can be reached via e-mail to <support@deliantra.net>
23 */ 23 */
24 24
25#ifndef CLIENT_H 25#ifndef CLIENT_H
26#define CLIENT_H 26#define CLIENT_H
27 27
28#include <deque> 28#include <deque>
29#include <bitset> 29#include <bitset>
30#include <tr1/unordered_set> 30#include <tr1/unordered_set>
31 31
32#if HAVE_TCP_INFO
33# include <netinet/tcp.h>
34#else
35 struct tcp_info {
36 // dummy
37 int tcpi_state;
38 int tcpi_ca_state;
39 int tcpi_retransmits;
40 int tcpi_probes;
41 int tcpi_backoff;
42 int tcpi_options;
43 int tcpi_snd_wscale;
44 int tcpi_rcv_wscale;
45 int tcpi_rto;
46 int tcpi_ato;
47 int tcpi_snd_mss;
48 int tcpi_rcv_mss;
49 int tcpi_unacked;
50 int tcpi_sacked;
51 int tcpi_lost;
52 int tcpi_retrans;
53 int tcpi_fackets;
54 int tcpi_last_data_sent;
55 int tcpi_last_ack_sent;
56 int tcpi_last_data_recv;
57 int tcpi_last_ack_recv;
58 int tcpi_pmtu;
59 int tcpi_rcv_ssthresh;
60 int tcpi_rtt;
61 int tcpi_rttvar;
62 int tcpi_snd_ssthresh;
63 int tcpi_snd_cwnd;
64 int tcpi_advmss;
65 int tcpi_reordering;
66 };
67#endif
68
32// (possibly) max. number of objects "per page" in the ground container 69// (possibly) max. number of objects "per page" in the ground container
33#define FLOORBOX_PAGESIZE 50 70#define FLOORBOX_PAGESIZE 50
34 71
35struct MapCell 72struct MapCell
36{ 73{
37 tag_t player; // this is, unfortunately, very wasteful of memory space, but pretty bandwidth-efficient 74 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 */ 75 int count; /* This is really darkness in the map1 command */
39 faceidx faces[MAP_LAYERS]; 76 faceidx faces[MAP_LAYERS];
40 unsigned char stat_hp; // health of something in this space, or 0 77 unsigned char stat_hp; // health of something in this space, or 0
41 unsigned char flags; 78 unsigned char flags;
42 uint8_t smooth[MAP_LAYERS]; 79 uint8_t smooth[MAP_LAYERS];
… …
86 PF_PLAYING = 0x02, // must be in playing state 123 PF_PLAYING = 0x02, // must be in playing state
87 PF_COMMAND0 = 0x04, // command starts at offset 0 124 PF_COMMAND0 = 0x04, // command starts at offset 0
88 PF_COMMAND6 = 0x08, // command starts at offset 6 125 PF_COMMAND6 = 0x08, // command starts at offset 6
89}; 126};
90 127
128// face type.s bit 0 means "has meta info prepended"
129enum {
130 FT_FACE = 0 * 2 + 0, // faces (images)
131 FT_MUSIC = 1 * 2 + 1, // background music
132 FT_SOUND = 2 * 2 + 1, // effects
133 FT_RSRC = 3 * 2 + 0, // generic data files
134 FT_NUM,
135};
136
91struct packet_type 137struct packet_type
92{ 138{
93 const char *name; 139 const char *name;
94 void *cb; 140 void *cb;
95 int flags; 141 int flags;
… …
99{ 145{
100 tstamp stamp; 146 tstamp stamp;
101 const packet_type *handler; 147 const packet_type *handler;
102 char *data; 148 char *data;
103 int datalen; 149 int datalen;
104
105 ~command ()
106 {
107 sfree<char> (data, datalen + 1);
108 }
109}; 150};
110 151
111/* how many times we are allowed to give the wrong password before being kicked. */ 152/* how many times we are allowed to give the wrong password before being kicked. */
112#define MAX_PASSWORD_FAILURES 5 153#define MAX_PASSWORD_FAILURES 5
113 154
… …
115struct client : zero_initialised, attachable 156struct client : zero_initialised, attachable
116{ 157{
117 int ACC (RW, fd); 158 int ACC (RW, fd);
118 unsigned int inbuf_len; // number of bytes valid in inbuf 159 unsigned int inbuf_len; // number of bytes valid in inbuf
119 statsinfo stats; 160 statsinfo stats;
120 int ACC (RO, active); 161 object_vector_index ACC (RO, active);
121 162 player_ptr ACC (RO, pl);
122 /* The following is the setup for a ring buffer for storing output
123 * data that the OS can't handle right away.
124 */
125 struct
126 {
127 char data[SOCKETBUFSIZE];
128 int start;
129 int len;
130 } outputbuffer;
131 163
132 char *ACC (RW, host); /* Which host it is connected from (ip address) */ 164 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 */ 165 uint8 ACC (RW, state); /* Input state of the player (name, password, etc */
134 166
135 sint8 ACC (RW, last_level); /* Last level we sent to client */ 167 sint8 ACC (RW, last_level); /* Last level we sent to client */
… …
143 living ACC (RO, last_stats); /* Last stats as sent to client */ 175 living ACC (RO, last_stats); /* Last stats as sent to client */
144 float ACC (RW, last_speed); /* Last speed as sent to client */ 176 float ACC (RW, last_speed); /* Last speed as sent to client */
145 sint16 ACC (RW, last_resist[NROFATTACKS]);/* last resist values sent to client */ 177 sint16 ACC (RW, last_resist[NROFATTACKS]);/* last resist values sent to client */
146 sint64 ACC (RW, last_skill_exp[NUM_SKILLS]);/* shadow register. if != exp. obj update client */ 178 sint64 ACC (RW, last_skill_exp[NUM_SKILLS]);/* shadow register. if != exp. obj update client */
147 179
148 bool ACC (RW, force_face0); // client workaround for buggy checksum calculation in gcfclient
149 bool ACC (RW, force_bad_checksum); // client workaround for buggy checksum calculation in gcfclient
150 bool ACC (RW, force_image_newmap); // client workaround for client not redrawing map on image upload
151 bool ACC (RW, enable_bg_scrub); // client workaround, gcfclient becomes unusable if you send it images
152
153 bool ACC (RW, afk); /* player is afk */ 180 bool ACC (RW, afk); /* player is afk */
154 bool ACC (RW, facecache); /* If true, client is caching images */
155 bool ACC (RW, sent_scroll); 181 bool ACC (RW, sent_scroll);
156 bool ACC (RW, sound); /* does the client want sound */ 182 bool ACC (RW, sound); /* does the client want sound */
157 bool ACC (RW, newmapcmd); /* Send newmap command when entering new map SMACFIGGEN */ 183 bool ACC (RW, newmapcmd); /* Send newmap command when entering new map SMACFIGGEN */
158 bool ACC (RW, plugincmd); // extend the protocol through a plug-in */ 184 bool ACC (RW, plugincmd); // extend the protocol through a plug-in */
159 bool ACC (RW, mapinfocmd); // return map info and send map change info 185 bool ACC (RW, mapinfocmd); // return map info and send map change info
160 bool ACC (RW, extcmd); // call into extensions/plugins 186 uint8_t ACC (RW, extcmd); // call into extensions/plugins
161 bool ACC (RW, extmap); // extend map comamnd with extra data
162 bool ACC (RW, buggy_mapscroll); // client crashes on large mapscrolls
163 bool ACC (RW, darkness); /* True if client wants darkness information */
164 bool ACC (RW, image2); /* Client wants image2/face2 commands */
165 bool 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 */ 187 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 */ 188 bool ACC (RW, has_readable_type); /* If true client accept additional text information */
168 /* used to arrange text in books, scrolls, or scripted dialogs */ 189 /* 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 */ 190 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 */
171 /* Below are flags for extedend infos to pass to client
172 * with S->C mapextended command */
173 bool ACC (RW, EMI_smooth); /* Send smooth in extendmapinfos */
174 bool ACC (RW, smoothing); // trt-style smoothing 191 bool ACC (RW, smoothing); // deliantra-style smoothing
175 bool ACC (RW, can_msg); // trt-style text messages
176 192
177 bool ACC (RW, force_newmap); // force a newmap before next map update 193 bool ACC (RW, force_newmap); // force a newmap before next map update
178 uint32 ACC (RW, supported_readables); /* each bit is a readable supported by client */ 194 uint32 ACC (RW, supported_readables); /* each bit is a readable supported by client */
179 uint32 ACC (RW, cs_version), ACC (RW, sc_version); /* versions of the client */ 195 uint32 ACC (RW, cs_version), ACC (RW, sc_version); /* versions of the client */
180 uint16 ACC (RW, look_position); /* start of drawing of look window */ 196 uint16 ACC (RW, look_position); /* start of drawing of look window */
181 uint16 ACC (RW, mss); // likely tcp maximum segment size 197 uint16 ACC (RW, mss); // likely tcp maximum segment size
182 uint8 ACC (RW, mapmode); /* Type of map commands the client wants. */ 198 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 */ 199 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 */ 200 uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */
185 201
186 maptile *ACC (RW, current_map); // CF+ last/current player map 202 maptile_ptr ACC (RW, current_map); // CF+ last/current player map
187 region *ACC (RW, current_region); // CF+ last/current player region 203 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 204 int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position
189 shstr ACC (RW, version); // CF+ client name/version 205 shstr ACC (RW, version); // CF+ client name/version
190 uint8 ACC (RW, faceset); // CF+ selected faceset 206 uint8 ACC (RW, faceset); // CF+ selected faceset
191 207
192 player_ptr ACC (RO, pl); 208 tstamp ACC (RW, last_send); // last data send on socket.
193 209
194 int ACC (RW, rtt), ACC (RW, rttvar); /* round-trip time and -variance, if known */ 210 float ACC (RW, socket_timeout); /* after how many seconds of no ack do we declare dead */
195
196 int ACC (RW, rate_avail); // current rate balance 211 int ACC (RW, rate_avail); // current rate balance
197 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
198 faceidx ACC (RW, scrub_idx); // which face to send next 213 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 214 int ACC (RW, bg_scrub); // how many ticks till the next background face send
200 215
201 faceidx partial_face; 216 struct tcp_info tcpi;
202 uint32 partial_face_ofs; // if != 0, need to send remaining bytes of partial_face 217 tstamp next_rate_adjust;
203 std::vector<faceidx, slice_allocator<faceidx> > askface; // which faces have been requested by the client
204 218
219 unordered_vector<char *> mapinfo_queue;
220 void mapinfo_queue_clear ();
221 void mapinfo_queue_run ();
222 bool mapinfo_try (char *buf);
223
224 struct ixsend {
225 int16_t pri; // unused
226 faceidx idx;
227 uint32_t ofs; // if != 0, need to send remaining bytes of partial_face
228 };
229 std::vector<ixsend, slice_allocator<ixsend> > ixface; // which faces to send to the client using ix
230
205 std::vector<faceidx, slice_allocator<faceidx> > fxface; // which faces to send using fx 231 std::vector<faceidx, slice_allocator<faceidx> > fxface; // which faces to send using fx
206 MTH void flush_fx (); // send fx if required 232 MTH void flush_fx (); // send fx if required
207 233
208 void do_destroy (); 234 void do_destroy ();
209 void gather_callbacks (AV *&callbacks, event_type event) const; 235 void gather_callbacks (AV *&callbacks, event_type event) const;
210 236
211 iow socket_ev; void socket_cb (iow &w, int got); 237 iow socket_ev; void socket_cb (iow &w, int revents);
212 iw cmd_ev; void cmd_cb (iw &w);
213 238
214 std::deque< command, slice_allocator<command> > cmd_queue; 239 std::deque< command, slice_allocator<command> > cmd_queue;
215 240
216 // large structures at the end please 241 // large structures at the end please
217 struct Map lastmap; 242 struct Map lastmap;
218 std::bitset<MAXANIMNUM> anims_sent; 243 std::bitset<MAXANIMNUM> anims_sent;
219 std::bitset<MAX_FACES> faces_sent; 244 std::bitset<MAX_FACES> faces_sent;
245 std::bitset<FT_NUM> fx_want;
220 246
221 // if we get an incomplete packet, this is used to hold the data. 247 // 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 248 // we add 2 byte for the header, one for the trailing 0 byte
223 uint8 inbuf[MAXSOCKBUF + 2 + 1]; 249 uint8 inbuf[MAXSOCKBUF + 2 + 1];
224 250
… …
231 char msg[MSG_BUF_SIZE]; 257 char msg[MSG_BUF_SIZE];
232 } msgbuf[MSG_BUF_COUNT]; 258 } msgbuf[MSG_BUF_COUNT];
233 259
234 MTH bool msg_suppressed (const char *msg); 260 MTH bool msg_suppressed (const char *msg);
235 261
262 /* The following is the setup for a ring buffer for storing output
263 * data that the OS can't handle right away.
264 * TODO: this member is enourmously large - optimise?
265 */
266 struct
267 {
268 char data[SOCKETBUFSIZE];
269 int start;
270 int len;
271 } outputbuffer;
272
236 bool may_execute (const packet_type *pkt) const; 273 bool may_execute (const packet_type *pkt) const;
237 void execute (const packet_type *pkt, char *data, int datalen); 274 void execute (const packet_type *pkt, char *data, int datalen);
238 275
239 void queue_command (packet_type *handler, char *data, int datalen); 276 void queue_command (packet_type *handler, char *data, int datalen);
240 MTH bool handle_command (); 277 MTH bool handle_command ();
… …
256 void send_packet (const char *buf, int len); 293 void send_packet (const char *buf, int len);
257 void send_packet_printf (const char *format, ...); 294 void send_packet_printf (const char *format, ...);
258 void send_packet (packet &sl); 295 void send_packet (packet &sl);
259 296
260 void send_drawinfo (const char *msg, int flags = NDI_BLACK); 297 void send_drawinfo (const char *msg, int flags = NDI_BLACK);
298
261 MTH void send_face (faceidx facenum); 299 MTH void send_face (faceidx facenum, int pri = 0);
262 MTH void send_image (faceidx facenum);
263 MTH void send_faces (object *ob); 300 MTH void send_faces (object *ob);
264 MTH void send_animation (short anim_num); 301 MTH void send_animation (short anim_num);
265 MTH void send_msg (int color, const char *type, const char *msg); 302 void send_msg (int color, const char *type, const char *msg);
266 303
304 MTH void play_sound (faceidx sound, int dx = 0, int dy = 0);
267 // called when something under the player changes 305 // called when something under the player changes
268 MTH void floorbox_update () { update_look = 1; } 306 MTH void floorbox_update () { update_look = 1; }
269 // called when the player has been moved 307 // called when the player has been moved
270 MTH void floorbox_reset () { look_position = 0; floorbox_update (); } 308 MTH void floorbox_reset () { look_position = 0; floorbox_update (); }
271 309
272 MTH void tick (); // called every server tick to do housekeeping etc. 310 MTH void tick (); // called every server tick to do housekeeping etc.
273 311
274 MTH static client *create (int fd, const char *peername); 312 MTH static client *create (int fd, const char *peername);
313 MTH static void clock ();
314 MTH static void flush_sockets ();
275 315
276protected: 316protected:
277 client (int fd, const char *from_ip); 317 client (int fd, const char *from_ip);
278 ~client (); 318 ~client ();
279}; 319};
320
321#if FOR_PERL
322 ACC (RW, tcpi.tcpi_state);
323 ACC (RW, tcpi.tcpi_ca_state);
324 ACC (RW, tcpi.tcpi_retransmits);
325 ACC (RW, tcpi.tcpi_probes);
326 ACC (RW, tcpi.tcpi_backoff);
327 ACC (RW, tcpi.tcpi_options);
328 ACC (RO, tcpi.tcpi_snd_wscale);
329 ACC (RO, tcpi.tcpi_rcv_wscale);
330 ACC (RW, tcpi.tcpi_rto);
331 ACC (RW, tcpi.tcpi_ato);
332 ACC (RW, tcpi.tcpi_snd_mss);
333 ACC (RW, tcpi.tcpi_rcv_mss);
334 ACC (RW, tcpi.tcpi_unacked);
335 ACC (RW, tcpi.tcpi_sacked);
336 ACC (RW, tcpi.tcpi_lost);
337 ACC (RW, tcpi.tcpi_retrans);
338 ACC (RW, tcpi.tcpi_fackets);
339 ACC (RW, tcpi.tcpi_last_data_sent);
340 ACC (RW, tcpi.tcpi_last_ack_sent);
341 ACC (RW, tcpi.tcpi_last_data_recv);
342 ACC (RW, tcpi.tcpi_last_ack_recv);
343 ACC (RW, tcpi.tcpi_pmtu);
344 ACC (RW, tcpi.tcpi_rcv_ssthresh);
345 ACC (RW, tcpi.tcpi_rtt);
346 ACC (RW, tcpi.tcpi_rttvar);
347 ACC (RW, tcpi.tcpi_snd_ssthresh);
348 ACC (RW, tcpi.tcpi_snd_cwnd);
349 ACC (RW, tcpi.tcpi_advmss);
350 ACC (RW, tcpi.tcpi_reordering);
351#endif
280 352
281#define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\ 353#define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\
282 ( ((__type)>0) &&\ 354 ( ((__type)>0) &&\
283 ((__sockPtr)->has_readable_type) && \ 355 ((__sockPtr)->has_readable_type) && \
284 ((__sockPtr)->supported_readables & (1<<(__type))) ) 356 ((__sockPtr)->supported_readables & (1<<(__type))) )
285 357
286/* Constants in the form EMI_ is for extended map infos.
287 * Even if the client select the additionnal infos it wants
288 * on the map, there may exist cases where this whole info
289 * is not given in one buch but in separate bunches. This
290 * is done performance reasons (imagine some info related to
291 * a visible object and another info related to a 4 square
292 * width and height area). At the begin of an extended info packet
293 * is a bit field. A bit is activated for each extended info
294 * present in the data
295 */
296
297/* Meanings:
298 * EMI_NOREDRAW Take extended infos into account but don't redraw,
299 * some additionnal datas will follow in a new packet
300 * EMI_SMOOTH Datas about smoothing
301 */
302#define EMI_NOREDRAW 0x01
303#define EMI_SMOOTH 0x02
304
305/* this last one says the bitfield continue un next byte
306 * There may be several on contiguous bytes. So there is 7
307 * actual bits used per byte, and the number of bytes
308 * is not fixed in protocol
309 */
310#define EMI_HASMOREBITS 0x80
311
312#define FACE_TYPES 1 358#define FACE_TYPES 1
313#define PNG_FACE_INDEX 0 359#define PNG_FACE_INDEX 0
314 360
315#define VERSION_CS 1023 /* version >= 1023 understand setup cmd */ 361#define VERSION_CS 1023 /* version >= 1023 understand setup cmd */
316#define VERSION_SC 1026 362#define VERSION_SC 1026
317//#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
318#define VERSION_INFO "Crossfire+ Server" 364#define VERSION_INFO "Deliantra Server"
319 365
320typedef object_vector<client, &client::active> sockvec; 366typedef object_vector<client, &client::active> sockvec;
321 367
322extern sockvec clients; 368extern sockvec clients;
323 369
324#define for_all_clients(var) \ 370#define for_all_clients(var) \
325 for (int _i = 0; _i < clients.size (); ++_i) \ 371 for (int _i = 0; _i < clients.size (); ++_i) \
326 declvar (client *, var, clients [_i]) 372 statementvar (client *, var, clients [_i])
373
374// returns true when the message needs special (read: perl) treatment
375static inline bool
376msg_is_special (const char *msg, bool nl_special = true)
377{
378 return msg [strcspn (msg, nl_special ? "<&\n" : "<&")];
379}
327 380
328#endif 381#endif
329 382

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