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Comparing deliantra/server/socket/loop.C (file contents):
Revision 1.6 by root, Sun Sep 10 13:43:33 2006 UTC vs.
Revision 1.54 by root, Sun Jul 1 04:08:14 2007 UTC

1
2/* 1/*
3 * static char *rcsid_loop_c = 2 * This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game.
4 * "$Id: loop.C,v 1.6 2006/09/10 13:43:33 root Exp $"; 3 *
4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
5 * Copyright (©) 2002-2003,2007 Mark Wedel & The Crossfire Development Team
6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 *
8 * Crossfire TRT is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the Free
10 * Software Foundation; either version 2 of the License, or (at your option)
11 * any later version.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 * for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51
20 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 *
22 * The authors can be reached via e-mail to <crossfire@schmorp.de>
5 */ 23 */
6
7/*
8 CrossFire, A Multiplayer game for X-windows
9
10 Copyright (C) 2002-2003 Mark Wedel & The Crossfire Development Team
11 Copyright (C) 1992 Frank Tore Johansen
12
13 This program is free software; you can redistribute it and/or modify
14 it under the terms of the GNU General Public License as published by
15 the Free Software Foundation; either version 2 of the License, or
16 (at your option) any later version.
17
18 This program is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details.
22
23 You should have received a copy of the GNU General Public License
24 along with this program; if not, write to the Free Software
25 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26
27 The author can be reached via e-mail to crossfire-devel@real-time.com
28*/
29 24
30/** 25/**
31 * \file 26 * \file
32 * Main client/server loops. 27 * Main client/server loops.
33 * 28 *
34 * \date 2003-12-02 29 * \date 2003-12-02
35 * 30 *
36 * loop.c mainly deals with initialization and higher level socket 31 * loop.c mainly deals with initialization and higher level socket
37 * maintenance (checking for lost connections and if data has arrived.) 32 * maintanance (checking for lost connections and if data has arrived.)
38 * The reading of data is handled in ericserver.c
39 */ 33 */
40 34
41
42#include <global.h> 35#include <global.h>
43#ifndef __CEXTRACT__
44# include <sproto.h> 36#include <sproto.h>
45# include <sockproto.h> 37#include <sockproto.h>
46#endif
47 38
48#ifndef WIN32 /* ---win32 exclude unix headers */
49# include <sys/types.h> 39#include <sys/types.h>
50# include <sys/time.h> 40#include <sys/time.h>
51# include <sys/socket.h> 41#include <sys/socket.h>
52# include <netinet/in.h> 42#include <netinet/in.h>
53# include <netdb.h> 43#include <netdb.h>
54#endif /* end win32 */
55 44
56#ifdef HAVE_UNISTD_H
57# include <unistd.h> 45#include <unistd.h>
58#endif
59
60#ifdef HAVE_ARPA_INET_H
61# include <arpa/inet.h> 46#include <arpa/inet.h>
62#endif
63 47
64#include <loader.h> 48#include <loader.h>
65#include <newserver.h>
66 49
67/***************************************************************************** 50#define BG_SCRUB_RATE 4 // how often to send a face in the background
68 * Start of command dispatch area.
69 * The commands here are protocol commands.
70 ****************************************************************************/
71 51
72/* Either keep this near the start or end of the file so it is 52#define MAX_QUEUE_DEPTH 500
73 * at least reasonablye easy to find. 53#define MAX_QUEUE_BACKLOG 3.
74 * There are really 2 commands - those which are sent/received
75 * before player joins, and those happen after the player has joined.
76 * As such, we have function types that might be called, so
77 * we end up having 2 tables.
78 */
79 54
80typedef void (*func_uint8_int_ns) (char *, int, NewSocket *);
81
82struct NsCmdMapping
83{
84 const char *cmdname;
85 func_uint8_int_ns cmdproc;
86};
87
88typedef void (*func_uint8_int_pl) (char *, int, player *);
89struct PlCmdMapping
90{
91 const char *cmdname;
92 func_uint8_int_pl cmdproc;
93 uint8 flag;
94};
95
96/**
97 * Dispatch table for the server.
98 *
99 * CmdMapping is the dispatch table for the server, used in HandleClient,
100 * which gets called when the client has input. All commands called here
101 * use the same parameter form (char* data, int len, int clientnum.
102 * We do implicit casts, because the data that is being passed is
103 * unsigned (pretty much needs to be for binary data), however, most
104 * of these treat it only as strings, so it makes things easier
105 * to cast it here instead of a bunch of times in the function itself.
106 * flag is 1 if the player must be in the playing state to issue the
107 * command, 0 if they can issue it at any time.
108 */
109static struct PlCmdMapping plcommands[] = {
110 {"examine", ExamineCmd, 1},
111 {"apply", ApplyCmd, 1},
112 {"move", MoveCmd, 1},
113 {"reply", ReplyCmd, 0},
114 {"command", PlayerCmd, 1},
115 {"ncom", (func_uint8_int_pl) NewPlayerCmd, 1},
116 {"lookat", LookAt, 1},
117 {"lock", (func_uint8_int_pl) LockItem, 1},
118 {"mark", (func_uint8_int_pl) MarkItem, 1},
119 {"mapredraw", MapRedrawCmd, 0}, /* Added: phil */
120 {"mapinfo", MapInfoCmd, 2}, /* CF+ */
121 {"ext", ExtCmd, 2}, /* CF+ */
122 {NULL, NULL, 0} /* terminator */
123};
124
125/** Face-related commands */
126static struct NsCmdMapping nscommands[] = {
127 {"addme", AddMeCmd},
128 {"askface", SendFaceCmd}, /* Added: phil */
129 {"requestinfo", RequestInfo},
130 {"setfacemode", SetFaceMode},
131 {"setsound", SetSound},
132 {"setup", SetUp},
133 {"version", VersionCmd},
134 {"toggleextendedinfos", ToggleExtendedInfos}, /*Added: tchize */
135 {"toggleextendedtext", ToggleExtendedText}, /*Added: tchize */
136 {"asksmooth", AskSmooth}, /*Added: tchize (smoothing technologies) */
137 {NULL, NULL} /* terminator (I, II & III) */
138};
139
140/**
141 * RequestInfo is sort of a meta command. There is some specific
142 * request of information, but we call other functions to provide
143 * that information.
144 */
145void 55void
146RequestInfo (char *buf, int len, NewSocket * ns) 56client::reset_state ()
147{ 57{
148 char *params = NULL, *cp; 58 if (!pl)
59 return;
149 60
150 /* No match */ 61 pl->run_on = 0;
151 char bigbuf[MAX_BUF]; 62 pl->fire_on = 0;
152 int slen; 63}
153 64
154 /* Set up replyinfo before we modify any of the buffers - this is used 65void
155 * if we don't find a match. 66client::queue_command (packet_type *handler, char *data, int datalen)
156 */ 67{
157 strcpy (bigbuf, "replyinfo "); 68 tstamp stamp = NOW;
158 slen = strlen (bigbuf);
159 safe_strcat (bigbuf, buf, &slen, MAX_BUF);
160 69
161 /* find the first space, make it null, and update the 70 if (cmd_queue.size () >= MAX_QUEUE_DEPTH)
162 * params pointer.
163 */
164 for (cp = buf; *cp != '\0'; cp++)
165 if (*cp == ' ')
166 { 71 {
167 *cp = '\0'; 72 //TODO: just disconnect here?
168 params = cp + 1; 73 reset_state ();
169 break; 74 send_packet_printf ("drawinfo %d command queue overflow, ignoring.", NDI_RED);
170 } 75 }
171 if (!strcmp (buf, "image_info"))
172 send_image_info (ns, params);
173 else if (!strcmp (buf, "image_sums"))
174 send_image_sums (ns, params);
175 else if (!strcmp (buf, "skill_info"))
176 send_skill_info (ns, params);
177 else if (!strcmp (buf, "spell_paths"))
178 send_spell_paths (ns, params);
179 else 76 else
180 Write_String_To_Socket (ns, bigbuf, len); 77 {
181} 78 cmd_queue.push_back (command ());
182 79 command &cmd = cmd_queue.back ();
183/** 80 cmd.stamp = stamp;
184 * Handle client input. 81 cmd.handler = handler;
185 * 82 cmd.data = salloc<char> (datalen + 1, data);
186 * HandleClient is actually not named really well - we only get here once 83 cmd.datalen = datalen;
187 * there is input, so we don't do exception or other stuff here.
188 * sock is the output socket information. pl is the player associated
189 * with this socket, null if no player (one of the init_sockets for just
190 * starting a connection)
191 */
192
193void
194HandleClient (NewSocket * ns, player *pl)
195{
196 int len = 0, i, cnt;
197 char *data;
198
199 /* Loop through this - maybe we have several complete packets here. */
200 // limit to a few commands only, though, as to not monopolise the server
201 for (cnt = 16; cnt--;)
202 { 84 }
203 /* If it is a player, and they don't have any speed left, we 85}
204 * return, and will read in the data when they do have time. 86
205 */ 87bool
206 if (pl && pl->state == ST_PLAYING && pl->ob != NULL && pl->ob->speed_left < 0) 88client::handle_command ()
89{
90 if (!cmd_queue.empty ()
91 && state == ST_PLAYING
92 && pl->ob->speed_left > 0.f)
93 {
94 command &cmd = cmd_queue.front ();
95
96 if (cmd.stamp + MAX_QUEUE_BACKLOG < NOW)
207 { 97 {
208 return; 98 reset_state ();
209 } 99 send_packet_printf ("drawinfo %d ignoring delayed commands.", NDI_RED);
210
211 i = SockList_ReadPacket (ns->fd, &ns->inbuf, MAXSOCKBUF - 1);
212
213 if (i < 0)
214 {
215#ifdef ESRV_DEBUG
216 LOG (llevDebug, "HandleClient: Read error on connection player %s\n", (pl ? pl->ob->name : "None"));
217#endif
218 /* Caller will take care of cleaning this up */
219 ns->status = Ns_Dead;
220 return;
221 }
222 /* Still dont have a full packet */
223 if (i == 0)
224 return;
225
226// //D//TODO//temporarily log long commands
227// if (ns->inbuf.len >= 40 && pl && pl->ob)
228// LOG (llevDebug, "HandleClient: long comamnd from <%s,%s> %d<%s>\n", pl->ob->name, ns->host, ns->inbuf.len, ns->inbuf.buf + 2);
229
230 /* First, break out beginning word. There are at least
231 * a few commands that do not have any paremeters. If
232 * we get such a command, don't worry about trying
233 * to break it up.
234 */
235 data = (char *) strchr ((char *) ns->inbuf.buf + 2, ' ');
236 if (data)
237 {
238 *data = '\0';
239 data++;
240 len = ns->inbuf.len - (data - (char *) ns->inbuf.buf);
241 } 100 }
242 else 101 else
243 len = 0; 102 execute (cmd.handler, cmd.data, cmd.datalen);
244 103
245 ns->inbuf.buf[ns->inbuf.len] = '\0'; /* Terminate buffer - useful for string data */ 104 cmd_queue.pop_front ();
246 for (i = 0; nscommands[i].cmdname != NULL; i++) 105 return true;
247 {
248 if (strcmp ((char *) ns->inbuf.buf + 2, nscommands[i].cmdname) == 0)
249 {
250 nscommands[i].cmdproc ((char *) data, len, ns);
251 ns->inbuf.len = 0;
252 return; //D// not doing this causes random memory corruption
253 goto next_packet;
254 }
255 }
256 /* Player must be in the playing state or the flag on the
257 * the command must be zero for the user to use the command -
258 * otherwise, a player cam save, be in the play_again state, and
259 * the map they were on gets swapped out, yet things that try to look
260 * at the map causes a crash. If the command is valid, but
261 * one they can't use, we still swallow it up.
262 */
263 if (pl)
264 for (i = 0; plcommands[i].cmdname != NULL; i++)
265 {
266 if (strcmp ((char *) ns->inbuf.buf + 2, plcommands[i].cmdname) == 0)
267 {
268 if (pl->state == ST_PLAYING || !(plcommands[i].flag & 1))
269 plcommands[i].cmdproc ((char *) data, len, pl);
270 ns->inbuf.len = 0;
271 //D// not doing this causes random memory corruption
272 if (plcommands[i].flag & 2)
273 goto next_packet;
274 return;
275 }
276 }
277 /* If we get here, we didn't find a valid command. Logging
278 * this might be questionable, because a broken client/malicious
279 * user could certainly send a whole bunch of invalid commands.
280 */
281 LOG (llevDebug, "Bad command from client (%s)\n", ns->inbuf.buf + 2);
282 next_packet:
283 ;
284 } 106 }
107 else
108 return false;
285} 109}
286 110
287 111void
288/***************************************************************************** 112flush_sockets (void)
289 * 113{
290 * Low level socket looping - select calls and watchdog udp packet 114 for (sockvec::iterator i = clients.begin (); i != clients.end (); ++i)
291 * sending. 115 (*i)->flush ();
292 * 116}
293 ******************************************************************************/
294
295#ifdef WATCHDOG
296 117
297/** 118/**
298 * Tell watchdog that we are still alive
299 *
300 * I put the function here since we should hopefully already be getting
301 * all the needed include files for socket support
302 */
303
304void
305watchdog (void)
306{
307 static int fd = -1;
308 static struct sockaddr_in insock;
309
310 if (fd == -1)
311 {
312 struct protoent *protoent;
313
314 if ((protoent = getprotobyname ("udp")) == NULL || (fd = socket (PF_INET, SOCK_DGRAM, protoent->p_proto)) == -1)
315 {
316 return;
317 }
318 insock.sin_family = AF_INET;
319 insock.sin_port = htons ((unsigned short) 13325);
320 insock.sin_addr.s_addr = inet_addr ("127.0.0.1");
321 }
322 sendto (fd, (void *) &fd, 1, 0, (struct sockaddr *) &insock, sizeof (insock));
323}
324#endif
325
326void
327flush_sockets (void)
328{
329 player *pl;
330
331 for (pl = first_player; pl != NULL; pl = pl->next)
332 if (pl->socket.status != Ns_Dead)
333 Socket_Flush (&pl->socket);
334}
335
336/**
337 * This checks the sockets for input and exceptions, does the right thing. 119 * This checks the sockets for input, does the right thing.
338 * 120 *
339 * A bit of this code is grabbed out of socket.c 121 * A bit of this code is grabbed out of socket.c
340 * There are 2 lists we need to look through - init_sockets is a list 122 * There are 2 lists we need to look through - init_sockets is a list
341 * 123 *
342 */ 124 */
343void 125void
344doeric_server (void) 126doeric_server (void)
345{ 127{
346 int i, pollret; 128 //TODO: should not be done here, either
347 fd_set tmp_read, tmp_exceptions, tmp_write; 129 for (unsigned i = 0; i < clients.size (); ++i)
348 struct sockaddr_in addr;
349 socklen_t addrlen = sizeof (struct sockaddr);
350 player *pl, *next;
351
352#ifdef CS_LOGSTATS
353 if ((time (NULL) - cst_lst.time_start) >= CS_LOGTIME)
354 write_cs_stats ();
355#endif
356
357 FD_ZERO (&tmp_read);
358 FD_ZERO (&tmp_write);
359 FD_ZERO (&tmp_exceptions);
360
361 for (i = 0; i < socket_info.allocated_sockets; i++)
362 {
363 if (init_sockets[i].status == Ns_Dead)
364 {
365 free_newsocket (&init_sockets[i]);
366 init_sockets[i].status = Ns_Avail;
367 socket_info.nconns--;
368 }
369 else if (init_sockets[i].status != Ns_Avail)
370 {
371 FD_SET ((uint32) init_sockets[i].fd, &tmp_read);
372 FD_SET ((uint32) init_sockets[i].fd, &tmp_write);
373 FD_SET ((uint32) init_sockets[i].fd, &tmp_exceptions);
374 }
375 } 130 {
131 client *ns = clients [i];
376 132
377 /* Go through the players. Let the loop set the next pl value, 133 ns->tick ();
378 * since we may remove some 134 ns->refcnt_chk ();
135 }
136}
137
138void
139client::tick ()
140{
141 if (!pl || destroyed ())
142 return;
143
144 /* Update the players stats once per tick. More efficient than
145 * sending them whenever they change, and probably just as useful
379 */ 146 */
380 for (pl = first_player; pl != NULL;) 147 esrv_update_stats (pl);
148
149 if (last_weight != -1 && last_weight != WEIGHT (pl->ob))
150 {
151 esrv_update_item (UPD_WEIGHT, pl->ob, pl->ob);
152 if (last_weight != WEIGHT (pl->ob))
153 LOG (llevError, "esrv_update_item(UPD_WEIGHT) did not set player weight: is %lu, should be %lu\n",
154 (unsigned long) last_weight, WEIGHT (pl->ob));
381 { 155 }
382 if (pl->socket.status == Ns_Dead)
383 {
384 player *npl = pl->next;
385 156
386 save_player (pl->ob, 0); 157 draw_client_map (pl);
387 if (!QUERY_FLAG (pl->ob, FLAG_REMOVED)) 158
159 if (update_look)
160 esrv_draw_look (pl);
161
162 if (ixface.empty ())
163 {
164 // regularly send a new face when queue is empty
165 if (bg_scrub && !--bg_scrub && enable_bg_scrub)
166 while (scrub_idx < faces.size () - 1)
388 { 167 {
389 terminate_all_pets (pl->ob); 168 ++scrub_idx;
390 remove_ob (pl->ob);
391 }
392 leave (pl, 1);
393 final_free_player (pl);
394 pl = npl;
395 }
396 else
397 {
398 FD_SET ((uint32) pl->socket.fd, &tmp_read);
399 FD_SET ((uint32) pl->socket.fd, &tmp_write);
400 FD_SET ((uint32) pl->socket.fd, &tmp_exceptions);
401 pl = pl->next;
402 }
403 }
404 169
405 /* Reset timeout each time, since some OS's will change the values on 170 if (!faces_sent [scrub_idx])
406 * the return from select.
407 */
408 socket_info.timeout.tv_sec = 0;
409 socket_info.timeout.tv_usec = 0;
410
411 pollret = select (socket_info.max_filedescriptor, &tmp_read, &tmp_write, &tmp_exceptions, &socket_info.timeout);
412
413 if (pollret == -1)
414 {
415 LOG (llevError, "select failed: %s\n", strerror (errno));
416 return;
417 }
418
419 /* We need to do some of the processing below regardless */
420
421/* if (!pollret) return;*/
422
423 /* Following adds a new connection */
424 if (pollret && FD_ISSET (init_sockets[0].fd, &tmp_read))
425 {
426 int newsocknum = 0;
427
428#ifdef ESRV_DEBUG
429 LOG (llevDebug, "doeric_server: New Connection\n");
430#endif
431 /* If this is the case, all sockets currently in used */
432 if (socket_info.allocated_sockets <= socket_info.nconns)
433 {
434 init_sockets = (NewSocket *) realloc (init_sockets, sizeof (NewSocket) * (socket_info.nconns + 1));
435 if (!init_sockets)
436 fatal (OUT_OF_MEMORY);
437 newsocknum = socket_info.allocated_sockets;
438 socket_info.allocated_sockets++;
439 init_sockets[newsocknum].faces_sent_len = nrofpixmaps;
440 init_sockets[newsocknum].faces_sent = (uint8 *) malloc (nrofpixmaps * sizeof (*init_sockets[newsocknum].faces_sent));
441 if (!init_sockets[newsocknum].faces_sent)
442 fatal (OUT_OF_MEMORY);
443 init_sockets[newsocknum].status = Ns_Avail;
444 }
445 else
446 {
447 int j;
448
449 for (j = 1; j < socket_info.allocated_sockets; j++)
450 if (init_sockets[j].status == Ns_Avail)
451 { 171 {
452 newsocknum = j; 172 send_face (scrub_idx);
173 flush_fx ();
174
175 bg_scrub = 1; // send up to one face per tick, unless an image was requested
453 break; 176 break;
454 } 177 }
455 } 178 }
456 init_sockets[newsocknum].fd = accept (init_sockets[0].fd, (struct sockaddr *) &addr, &addrlen); 179
457 if (init_sockets[newsocknum].fd == -1) 180 rate_avail = max_rate - outputbuffer_len ();
181 }
182 else
183 {
184 int ol = outputbuffer_len ();
185
186 rate_avail = min (max_rate, rate_avail + max_rate);
187 rate_avail -= ol;
188
189 int avail = rate_avail;
190
191 // if we can split images, transfer up to mss-sized packets if possible
192 // but never 768 bytes more.
193 if (fxix) avail += min (768, mss - (ol % mss));
194
195 bg_scrub = BG_SCRUB_RATE;
196
197 while (avail > 0)
458 { 198 {
459 LOG (llevError, "accept failed: %s\n", strerror (errno)); 199 ixsend &ix = ixface.back ();
460 }
461 else
462 {
463 char buf[MAX_BUF];
464 long ip;
465 NewSocket *ns;
466 200
467 ns = &init_sockets[newsocknum]; 201 if (facedata *d = face_data (ix.idx, faceset))
468
469 ip = ntohl (addr.sin_addr.s_addr);
470 sprintf (buf, "%ld.%ld.%ld.%ld", (ip >> 24) & 255, (ip >> 16) & 255, (ip >> 8) & 255, ip & 255);
471
472 if (checkbanned (NULL, buf))
473 { 202 {
474 LOG (llevInfo, "Banned host tried to connect: [%s]\n", buf); 203 if (fxix)
475 close (init_sockets[newsocknum].fd); 204 {
476 init_sockets[newsocknum].fd = -1; 205 // 9 bytes is enough for fx_FFFOOO, 40 leaves some room for image data
206 int chunk = min (min (avail - 40, MAXSOCKBUF - 9), ix.ofs);
207
208 if (chunk <= 0)
209 break;
210
211 ix.ofs -= chunk;
212
213 packet sl ("ix");
214
215 sl << ber32 (ix.idx)
216 << ber32 (ix.ofs)
217 << data (d->data.data () + ix.ofs, chunk);
218
219 send_packet (sl);
220 }
221 else
222 {
223 send_image (ix.idx);
224 ix.ofs = 0;
225 }
477 } 226 }
478 else 227 else
228 ix.ofs = 0;
229
230 int consumed = ol - outputbuffer_len ();
231
232 avail -= consumed;
233 rate_avail -= consumed;
234
235 ol = outputbuffer_len ();
236
237 if (!ix.ofs)
479 { 238 {
480 InitConnection (ns, buf); 239 ixface.pop_back ();
481 socket_info.nconns++; 240 if (ixface.empty ())
241 break;
482 } 242 }
483 } 243 }
484 } 244 }
485
486 /* Check for any exceptions/input on the sockets */
487 if (pollret)
488 for (i = 1; i < socket_info.allocated_sockets; i++)
489 {
490 if (init_sockets[i].status == Ns_Avail)
491 continue;
492 if (FD_ISSET (init_sockets[i].fd, &tmp_exceptions))
493 {
494 free_newsocket (&init_sockets[i]);
495 init_sockets[i].status = Ns_Avail;
496 socket_info.nconns--;
497 continue;
498 }
499 if (FD_ISSET (init_sockets[i].fd, &tmp_read))
500 {
501 HandleClient (&init_sockets[i], NULL);
502 }
503 if (FD_ISSET (init_sockets[i].fd, &tmp_write))
504 {
505 init_sockets[i].can_write = 1;
506 }
507 }
508
509 /* This does roughly the same thing, but for the players now */
510 for (pl = first_player; pl != NULL; pl = next)
511 {
512
513 next = pl->next;
514 if (pl->socket.status == Ns_Dead)
515 continue;
516
517 if (FD_ISSET (pl->socket.fd, &tmp_write))
518 {
519 if (!pl->socket.can_write)
520 {
521#if 0
522 LOG (llevDebug, "Player %s socket now write enabled\n", pl->ob->name);
523#endif
524 pl->socket.can_write = 1;
525 write_socket_buffer (&pl->socket);
526 }
527 /* if we get an error on the write_socket buffer, no reason to
528 * continue on this socket.
529 */
530 if (pl->socket.status == Ns_Dead)
531 continue;
532 }
533 else
534 pl->socket.can_write = 0;
535
536 if (FD_ISSET (pl->socket.fd, &tmp_exceptions))
537 {
538 save_player (pl->ob, 0);
539 if (!QUERY_FLAG (pl->ob, FLAG_REMOVED))
540 {
541 terminate_all_pets (pl->ob);
542 remove_ob (pl->ob);
543 }
544 leave (pl, 1);
545 final_free_player (pl);
546 }
547 else
548 {
549 HandleClient (&pl->socket, pl);
550 /* If the player has left the game, then the socket status
551 * will be set to this be the leave function. We don't
552 * need to call leave again, as it has already been called
553 * once.
554 */
555 if (pl->socket.status == Ns_Dead)
556 {
557 save_player (pl->ob, 0);
558 if (!QUERY_FLAG (pl->ob, FLAG_REMOVED))
559 {
560 terminate_all_pets (pl->ob);
561 remove_ob (pl->ob);
562 }
563 leave (pl, 1);
564 final_free_player (pl);
565 }
566 else
567 {
568
569 /* Update the players stats once per tick. More efficient than
570 * sending them whenever they change, and probably just as useful
571 */
572 esrv_update_stats (pl);
573 if (pl->last_weight != -1 && pl->last_weight != WEIGHT (pl->ob))
574 {
575 esrv_update_item (UPD_WEIGHT, pl->ob, pl->ob);
576 if (pl->last_weight != WEIGHT (pl->ob))
577 LOG (llevError, "esrv_update_item(UPD_WEIGHT) did not set player weight: is %lu, should be %lu\n",
578 (unsigned long) pl->last_weight, WEIGHT (pl->ob));
579 }
580 /* draw_client_map does sanity checking that map is
581 * valid, so don't do it here.
582 */
583 draw_client_map (pl->ob);
584 if (pl->socket.update_look)
585 esrv_draw_look (pl->ob);
586 }
587 }
588 }
589} 245}
246

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