[ViewVC] Diff of: cvs/deliantra/server/socket/loop.C

Comparing deliantra/server/socket/loop.C (file contents):
Revision 1.9 by root, Tue Dec 12 20:53:03 2006 UTC vs.
Revision 1.67 by root, Tue Jul 31 20:10:31 2007 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
4	Copyright (C) 2002-2003 Mark Wedel & The Crossfire Development Team	5	* Copyright (©) 2002-2003,2007 Mark Wedel & The Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Crossfire TRT is free software: you can redistribute it and/or modify
8	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
9	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
10	(at your option) any later version.	11	* (at your option) any later version.
11		12	*
12	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,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	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
18	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
20
21	The author can be reached via e-mail to <crossfire@schmorp.de>	21	* The authors can be reached via e-mail to <crossfire@schmorp.de>
22	*/	22	*/
23		23
24	/**	24	/**
25	* \file	25	* \file
26	* Main client/server loops.	26	* Main client/server loops.
27	*	27	*
28	* \date 2003-12-02	28	* \date 2003-12-02
29	*	29	*
30	* loop.c mainly deals with initialization and higher level socket	30	* loop.c mainly deals with initialization and higher level socket
31	* maintenance (checking for lost connections and if data has arrived.)	31	* maintanance (checking for lost connections and if data has arrived.)
32	* The reading of data is handled in ericserver.c
33	*/	32	*/
34		33
35
36	#include <global.h>	34	#include <global.h>
37	#ifndef __CEXTRACT__
38	# include <sproto.h>	35	#include <sproto.h>
39	# include <sockproto.h>	36	#include <sockproto.h>
40	#endif
41		37
42	#include <sys/types.h>	38	#include <sys/types.h>
43	#include <sys/time.h>	39	#include <sys/time.h>
44	#include <sys/socket.h>	40	#include <sys/socket.h>
45	#include <netinet/in.h>	41	#include <netinet/in.h>
46	#include <netdb.h>	42	#include <netdb.h>
47		43
48	#ifdef HAVE_UNISTD_H
49	# include <unistd.h>	44	#include <unistd.h>
50	#endif
51
52	#ifdef HAVE_ARPA_INET_H
53	# include <arpa/inet.h>	45	#include <arpa/inet.h>
54	#endif
55		46
56	#include <loader.h>	47	#include <loader.h>
57	#include <newserver.h>
58		48
59	/*****************************************************************************	49	#define BG_SCRUB_RATE 4 // how often to send a face in the background
60	* Start of command dispatch area.
61	* The commands here are protocol commands.
62	****************************************************************************/
63		50
64	/* Either keep this near the start or end of the file so it is	51	#define MAX_QUEUE_DEPTH 50
65	* at least reasonablye easy to find.	52	#define MAX_QUEUE_BACKLOG 3.
66	* There are really 2 commands - those which are sent/received
67	* before player joins, and those happen after the player has joined.
68	* As such, we have function types that might be called, so
69	* we end up having 2 tables.
70	*/
71		53
72	typedef void (func_uint8_int_ns) (char , int, NewSocket *);	54	// disconnect a socket after this many seconds without an ack
		55	#define SOCKET_TIMEOUT 8.
73		56
74	struct NsCmdMapping
75	{
76	const char *cmdname;
77	func_uint8_int_ns cmdproc;
78	};
79
80	typedef void (func_uint8_int_pl) (char , int, player *);
81	struct PlCmdMapping
82	{
83	const char *cmdname;
84	func_uint8_int_pl cmdproc;
85	uint8 flag;
86	};
87
88	/**
89	* Dispatch table for the server.
90	*
91	* CmdMapping is the dispatch table for the server, used in HandleClient,
92	* which gets called when the client has input. All commands called here
93	* use the same parameter form (char* data, int len, int clientnum.
94	* We do implicit casts, because the data that is being passed is
95	* unsigned (pretty much needs to be for binary data), however, most
96	* of these treat it only as strings, so it makes things easier
97	* to cast it here instead of a bunch of times in the function itself.
98	* flag is 1 if the player must be in the playing state to issue the
99	* command, 0 if they can issue it at any time.
100	*/
101	static struct PlCmdMapping plcommands[] = {
102	{"examine", ExamineCmd, 1},
103	{"apply", ApplyCmd, 1},
104	{"move", MoveCmd, 1},
105	{"reply", ReplyCmd, 0},
106	{"command", PlayerCmd, 1},
107	{"ncom", (func_uint8_int_pl) NewPlayerCmd, 1},
108	{"lookat", LookAt, 1},
109	{"lock", (func_uint8_int_pl) LockItem, 1},
110	{"mark", (func_uint8_int_pl) MarkItem, 1},
111	{"mapredraw", MapRedrawCmd, 0}, /* Added: phil */
112	{"mapinfo", MapInfoCmd, 2}, /* CF+ */
113	{"ext", ExtCmd, 2}, /* CF+ */
114	{NULL, NULL, 0} /* terminator */
115	};
116
117	/** Face-related commands */
118	static struct NsCmdMapping nscommands[] = {
119	{"addme", AddMeCmd},
120	{"askface", SendFaceCmd}, /* Added: phil */
121	{"requestinfo", RequestInfo},
122	{"setfacemode", SetFaceMode},
123	{"setsound", SetSound},
124	{"setup", SetUp},
125	{"version", VersionCmd},
126	{"toggleextendedinfos", ToggleExtendedInfos}, /Added: tchize /
127	{"toggleextendedtext", ToggleExtendedText}, /Added: tchize /
128	{"asksmooth", AskSmooth}, /Added: tchize (smoothing technologies) /
129	{NULL, NULL} /* terminator (I, II & III) */
130	};
131
132	/**
133	* RequestInfo is sort of a meta command. There is some specific
134	* request of information, but we call other functions to provide
135	* that information.
136	*/
137	void	57	void
138	RequestInfo (char buf, int len, NewSocket ns)	58	client::reset_state ()
139	{	59	{
140	char params = NULL, cp;	60	if (!pl)
		61	return;
141		62
142	/* No match */	63	pl->run_on = 0;
143	char bigbuf[MAX_BUF];	64	pl->fire_on = 0;
144	int slen;	65	}
145		66
146	/* Set up replyinfo before we modify any of the buffers - this is used	67	void
147	* if we don't find a match.	68	client::queue_command (packet_type handler, char data, int datalen)
148	*/	69	{
149	strcpy (bigbuf, "replyinfo ");	70	tstamp stamp = NOW;
150	slen = strlen (bigbuf);
151	safe_strcat (bigbuf, buf, &slen, MAX_BUF);
152		71
153	/* find the first space, make it null, and update the	72	if (cmd_queue.size () >= MAX_QUEUE_DEPTH)
154	* params pointer.
155	*/
156	for (cp = buf; *cp != '\0'; cp++)
157	if (*cp == ' ')
158	{	73	{
159	*cp = '\0';	74	//TODO: just disconnect here?
160	params = cp + 1;	75	reset_state ();
161	break;	76	send_packet_printf ("drawinfo %d command queue overflow, ignoring.", NDI_RED);
162	}	77	}
163	if (!strcmp (buf, "image_info"))
164	send_image_info (ns, params);
165	else if (!strcmp (buf, "image_sums"))
166	send_image_sums (ns, params);
167	else if (!strcmp (buf, "skill_info"))
168	send_skill_info (ns, params);
169	else if (!strcmp (buf, "spell_paths"))
170	send_spell_paths (ns, params);
171	else	78	else
172	Write_String_To_Socket (ns, bigbuf, len);	79	{
173	}	80	cmd_queue.push_back (command ());
174		81	command &cmd = cmd_queue.back ();
175	/**	82	cmd.stamp = stamp;
176	* Handle client input.	83	cmd.handler = handler;
177	*	84	cmd.data = salloc<char> (datalen + 1, data);
178	* HandleClient is actually not named really well - we only get here once	85	cmd.datalen = datalen;
179	* there is input, so we don't do exception or other stuff here.
180	* sock is the output socket information. pl is the player associated
181	* with this socket, null if no player (one of the init_sockets for just
182	* starting a connection)
183	*/
184
185	void
186	HandleClient (NewSocket * ns, player *pl)
187	{
188	int len = 0, i, cnt;
189	char *data;
190
191	/* Loop through this - maybe we have several complete packets here. */
192	// limit to a few commands only, though, as to not monopolise the server
193	for (cnt = 16; cnt--;)
194	{	86	}
195	/* If it is a player, and they don't have any speed left, we	87	}
196	* return, and will read in the data when they do have time.	88
197	*/	89	bool
198	if (pl && pl->state == ST_PLAYING && pl->ob != NULL && pl->ob->speed_left < 0)	90	client::handle_command ()
		91	{
		92	if (!cmd_queue.empty ()
		93	&& state == ST_PLAYING
		94	&& pl->ob->speed_left > 0.f)
		95	{
		96	command &cmd = cmd_queue.front ();
		97
		98	if (cmd.stamp + MAX_QUEUE_BACKLOG < NOW)
199	{	99	{
200	return;	100	reset_state ();
201	}	101	send_packet_printf ("drawinfo %d ignoring delayed commands.", NDI_RED);
202
203	i = SockList_ReadPacket (ns->fd, &ns->inbuf, MAXSOCKBUF - 1);
204
205	if (i < 0)
206	{
207	#ifdef ESRV_DEBUG
208	LOG (llevDebug, "HandleClient: Read error on connection player %s\n", (pl ? pl->ob->name : "None"));
209	#endif
210	/* Caller will take care of cleaning this up */
211	ns->status = Ns_Dead;
212	return;
213	}
214	/* Still dont have a full packet */
215	if (i == 0)
216	return;
217
218	// //D//TODO//temporarily log long commands
219	// if (ns->inbuf.len >= 40 && pl && pl->ob)
220	// LOG (llevDebug, "HandleClient: long comamnd from <%s,%s> %d<%s>\n", pl->ob->name, ns->host, ns->inbuf.len, ns->inbuf.buf + 2);
221
222	/* First, break out beginning word. There are at least
223	* a few commands that do not have any paremeters. If
224	* we get such a command, don't worry about trying
225	* to break it up.
226	*/
227	data = (char ) strchr ((char ) ns->inbuf.buf + 2, ' ');
228	if (data)
229	{
230	*data = '\0';
231	data++;
232	len = ns->inbuf.len - (data - (char *) ns->inbuf.buf);
233	}	102	}
234	else	103	else
235	len = 0;	104	execute (cmd.handler, cmd.data, cmd.datalen);
236		105
237	ns->inbuf.buf[ns->inbuf.len] = '\0'; /* Terminate buffer - useful for string data */	106	cmd_queue.pop_front ();
238	for (i = 0; nscommands[i].cmdname != NULL; i++)	107	return true;
		108	}
		109	else
		110	return false;
		111	}
		112
		113	void
		114	client::tick ()
		115	{
		116	if (!pl \|\| destroyed ())
		117	return;
		118
		119	/* Update the players stats once per tick. More efficient than
		120	* sending them whenever they change, and probably just as useful
		121	*/
		122	esrv_update_stats (pl);
		123
		124	if (last_weight != -1 && last_weight != WEIGHT (pl->ob))
		125	{
		126	esrv_update_item (UPD_WEIGHT, pl->ob, pl->ob);
		127	if (last_weight != WEIGHT (pl->ob))
		128	LOG (llevError, "esrv_update_item(UPD_WEIGHT) did not set player weight: is %lu, should be %lu\n",
		129	(unsigned long) last_weight, WEIGHT (pl->ob));
		130	}
		131
		132	draw_client_map (pl);
		133
		134	if (update_look)
		135	esrv_draw_look (pl);
		136
		137	#if HAVE_TCP_INFO
		138	// check time of last ack, and, if too old, kill connection
		139	socklen_t len = sizeof (tcpi);
		140
		141	if (!getsockopt (fd, IPPROTO_TCP, TCP_INFO, &tcpi, &len) && len == sizeof (tcpi))
		142	{
		143	if (tcpi.tcpi_snd_mss)
		144	mss = tcpi.tcpi_snd_mss;
		145
		146	#if 0
		147	fprintf (stderr, "uack %d ack %d lost %d ret %d fack %d sst %d cwnd %d mss %d pmtu %d advmss %d EXC %d\n",
		148	tcpi.tcpi_unacked,
		149	tcpi.tcpi_sacked,
		150	tcpi.tcpi_lost,
		151	tcpi.tcpi_retrans,
		152	tcpi.tcpi_fackets,
		153	tcpi.tcpi_snd_ssthresh, tcpi.tcpi_snd_cwnd, tcpi.tcpi_advmss, tcpi.tcpi_pmtu, tcpi.tcpi_advmss,
		154
		155	tcpi.tcpi_snd_cwnd - (tcpi.tcpi_unacked - tcpi.tcpi_sacked));
		156	#endif
		157
		158	// do this only when player is active
		159	if (pl && pl->active
		160	&& tcpi.tcpi_last_ack_recv > int (SOCKET_TIMEOUT * 1000))
239	{	161	{
240	if (strcmp ((char *) ns->inbuf.buf + 2, nscommands[i].cmdname) == 0)	162	send_msg (NDI_RED \| NDI_REPLY, "connection-timeout", "safety disconnect due to tcp/ip timeout (no packets received)");
		163	write_outputbuffer ();
		164
		165	LOG (llevDebug, "connection on fd %d closed due to ack timeout (%u/%u/%u)\n", fd,
		166	(unsigned)tcpi.tcpi_last_ack_recv, (unsigned)tcpi.tcpi_last_data_sent, (unsigned)tcpi.tcpi_unacked);
		167	destroy ();
		168	}
		169	}
		170	#endif
		171
		172	rate_avail = min (max_rate + mss, rate_avail + max_rate);
		173
		174	int max_send = rate_avail;
		175
		176	#if HAVE_TCP_INFO
		177	// further restrict the available bandwidth by the excess bandwidth available
		178	max_send = min (max_send, (tcpi.tcpi_snd_cwnd - tcpi.tcpi_unacked + tcpi.tcpi_sacked) * mss);
		179	#endif
		180
		181	// if we can split images, round to next-lowest mss
		182	if (fxix) max_send -= max_send % mss;
		183
		184	if (ixface.empty ())
		185	{
		186	// regularly send a new face when queue is empty
		187	if (bg_scrub && !--bg_scrub && enable_bg_scrub)
		188	while (scrub_idx < faces.size () - 1)
		189	{
		190	++scrub_idx;
		191
		192	if (!faces_sent [scrub_idx])
		193	if (faceinfo *f = face_info (scrub_idx))
		194	if (f->type == FT_FACE \|\| f->type == FT_SOUND) // only scrub faces and sounds for now
		195	{
		196	send_face (scrub_idx, -120);
		197	flush_fx ();
		198
		199	bg_scrub = 1; // send up to one fx per tick, unless an image was requested
		200	break;
		201	}
		202	}
		203	}
		204	else
		205	{
		206	bg_scrub = BG_SCRUB_RATE;
		207
		208	for (;;)
		209	{
		210	int avail = max_send - outputbuffer_len ();
		211
		212	if (avail <= 0)
		213	break;
		214
		215	ixsend &ix = ixface.back ();
		216
		217	if (facedata *d = face_data (ix.idx, faceset))
241	{	218	{
242	nscommands[i].cmdproc ((char *) data, len, ns);	219	if (fxix)
243	ns->inbuf.len = 0;	220	{
244	return; //D// not doing this causes random memory corruption	221	// estimate the packet header overhead "ix " + idx + (new)ofs
245	goto next_packet;	222	int pktlen = 3 + ber32::encoded_size (ix.idx) + ber32::encoded_size (ix.ofs);
		223	int chunk = min (avail - packet::hdrlen, MAXSOCKBUF) - pktlen;
		224
		225	// only transfer something if the amount of data transferred
		226	// has a healthy relation to the header overhead
		227	if (chunk < 64)
		228	break;
		229
		230	chunk = min (chunk, (int)ix.ofs);
		231
		232	ix.ofs -= chunk;
		233
		234	//fprintf (stderr, "i%dx %6d: %5d+%4d (%4d)\n", fxix, ix.idx,ix.ofs,chunk, ixface.size());//D
		235
		236	packet sl ("ix");
		237
		238	sl << ber32 (ix.idx)
		239	<< ber32 (ix.ofs)
		240	<< data (d->data.data () + ix.ofs, chunk);
		241
		242	send_packet (sl);
		243	}
		244	else
		245	{
		246	send_image (ix.idx);
		247	ix.ofs = 0;
		248	}
		249	}
		250	else
		251	ix.ofs = 0;
		252
		253	if (!ix.ofs)
		254	{
		255	ixface.pop_back ();
		256
		257	if (ixface.empty ())
		258	break;
246	}	259	}
247	}	260	}
248	/* Player must be in the playing state or the flag on the
249	* the command must be zero for the user to use the command -
250	* otherwise, a player cam save, be in the play_again state, and
251	* the map they were on gets swapped out, yet things that try to look
252	* at the map causes a crash. If the command is valid, but
253	* one they can't use, we still swallow it up.
254	*/
255	if (pl)
256	for (i = 0; plcommands[i].cmdname != NULL; i++)
257	{
258	if (strcmp ((char *) ns->inbuf.buf + 2, plcommands[i].cmdname) == 0)
259	{
260	if (pl->state == ST_PLAYING \|\| !(plcommands[i].flag & 1))
261	plcommands[i].cmdproc ((char *) data, len, pl);
262	ns->inbuf.len = 0;
263	//D// not doing this causes random memory corruption
264	if (plcommands[i].flag & 2)
265	goto next_packet;
266	return;
267	}
268	}
269	/* If we get here, we didn't find a valid command. Logging
270	* this might be questionable, because a broken client/malicious
271	* user could certainly send a whole bunch of invalid commands.
272	*/
273	LOG (llevDebug, "Bad command from client (%s)\n", ns->inbuf.buf + 2);
274	next_packet:
275	;
276	}
277	}
278
279
280	/*****************************************************************************
281	*
282	* Low level socket looping - select calls and watchdog udp packet
283	* sending.
284	*
285	******************************************************************************/
286
287	#ifdef WATCHDOG
288
289	/**
290	* Tell watchdog that we are still alive
291	*
292	* I put the function here since we should hopefully already be getting
293	* all the needed include files for socket support
294	*/
295
296	void
297	watchdog (void)
298	{
299	static int fd = -1;
300	static struct sockaddr_in insock;
301
302	if (fd == -1)
303	{
304	struct protoent *protoent;
305
306	if ((protoent = getprotobyname ("udp")) == NULL \|\| (fd = socket (PF_INET, SOCK_DGRAM, protoent->p_proto)) == -1)
307	{
308	return;
309	}
310	insock.sin_family = AF_INET;
311	insock.sin_port = htons ((unsigned short) 13325);
312	insock.sin_addr.s_addr = inet_addr ("127.0.0.1");
313	}
314	sendto (fd, (void ) &fd, 1, 0, (struct sockaddr ) &insock, sizeof (insock));
315	}
316	#endif
317
318	void
319	flush_sockets (void)
320	{
321	player *pl;
322
323	for (pl = first_player; pl != NULL; pl = pl->next)
324	if (pl->socket.status != Ns_Dead)
325	Socket_Flush (&pl->socket);
326	}
327
328	/**
329	* This checks the sockets for input and exceptions, does the right thing.
330	*
331	* A bit of this code is grabbed out of socket.c
332	* There are 2 lists we need to look through - init_sockets is a list
333	*
334	*/
335	void
336	doeric_server (void)
337	{
338	int i, pollret;
339	fd_set tmp_read, tmp_exceptions, tmp_write;
340	struct sockaddr_in addr;
341	socklen_t addrlen = sizeof (struct sockaddr);
342	player pl, next;
343
344	#ifdef CS_LOGSTATS
345	if ((time (NULL) - cst_lst.time_start) >= CS_LOGTIME)
346	write_cs_stats ();
347	#endif
348
349	FD_ZERO (&tmp_read);
350	FD_ZERO (&tmp_write);
351	FD_ZERO (&tmp_exceptions);
352
353	for (i = 0; i < socket_info.allocated_sockets; i++)
354	{
355	if (init_sockets[i].status == Ns_Dead)
356	{
357	free_newsocket (&init_sockets[i]);
358	init_sockets[i].status = Ns_Avail;
359	socket_info.nconns--;
360	}
361	else if (init_sockets[i].status != Ns_Avail)
362	{
363	FD_SET ((uint32) init_sockets[i].fd, &tmp_read);
364	FD_SET ((uint32) init_sockets[i].fd, &tmp_write);
365	FD_SET ((uint32) init_sockets[i].fd, &tmp_exceptions);
366	}
367	}
368
369	/* Go through the players. Let the loop set the next pl value,
370	* since we may remove some
371	*/
372	for (pl = first_player; pl != NULL;)
373	{
374	if (pl->socket.status == Ns_Dead)
375	{
376	player *npl = pl->next;
377
378	save_player (pl->ob, 0);
379	if (!QUERY_FLAG (pl->ob, FLAG_REMOVED))
380	{
381	terminate_all_pets (pl->ob);
382	pl->ob->remove ();
383	}
384	leave (pl, 1);
385	final_free_player (pl);
386	pl = npl;
387	}
388	else
389	{
390	FD_SET ((uint32) pl->socket.fd, &tmp_read);
391	FD_SET ((uint32) pl->socket.fd, &tmp_write);
392	FD_SET ((uint32) pl->socket.fd, &tmp_exceptions);
393	pl = pl->next;
394	}
395	}
396
397	/* Reset timeout each time, since some OS's will change the values on
398	* the return from select.
399	*/
400	socket_info.timeout.tv_sec = 0;
401	socket_info.timeout.tv_usec = 0;
402
403	pollret = select (socket_info.max_filedescriptor, &tmp_read, &tmp_write, &tmp_exceptions, &socket_info.timeout);
404
405	if (pollret == -1)
406	{
407	LOG (llevError, "select failed: %s\n", strerror (errno));
408	return;
409	}
410
411	/* We need to do some of the processing below regardless */
412
413	/* if (!pollret) return;*/
414
415	/* Following adds a new connection */
416	if (pollret && FD_ISSET (init_sockets[0].fd, &tmp_read))
417	{
418	int newsocknum = 0;
419
420	#ifdef ESRV_DEBUG
421	LOG (llevDebug, "doeric_server: New Connection\n");
422	#endif
423	/* If this is the case, all sockets currently in used */
424	if (socket_info.allocated_sockets <= socket_info.nconns)
425	{
426	init_sockets = (NewSocket ) realloc (init_sockets, sizeof (NewSocket) (socket_info.nconns + 1));
427	if (!init_sockets)
428	fatal (OUT_OF_MEMORY);
429	newsocknum = socket_info.allocated_sockets;
430	socket_info.allocated_sockets++;
431	init_sockets[newsocknum].faces_sent_len = nrofpixmaps;
432	init_sockets[newsocknum].faces_sent = (uint8 ) malloc (nrofpixmaps sizeof (*init_sockets[newsocknum].faces_sent));
433	if (!init_sockets[newsocknum].faces_sent)
434	fatal (OUT_OF_MEMORY);
435	init_sockets[newsocknum].status = Ns_Avail;
436	}
437	else
438	{
439	int j;
440
441	for (j = 1; j < socket_info.allocated_sockets; j++)
442	if (init_sockets[j].status == Ns_Avail)
443	{
444	newsocknum = j;
445	break;
446	}
447	}
448	init_sockets[newsocknum].fd = accept (init_sockets[0].fd, (struct sockaddr *) &addr, &addrlen);
449	if (init_sockets[newsocknum].fd == -1)
450	{
451	LOG (llevError, "accept failed: %s\n", strerror (errno));
452	}
453	else
454	{
455	char buf[MAX_BUF];
456	long ip;
457	NewSocket *ns;
458
459	ns = &init_sockets[newsocknum];
460
461	ip = ntohl (addr.sin_addr.s_addr);
462	sprintf (buf, "%ld.%ld.%ld.%ld", (ip >> 24) & 255, (ip >> 16) & 255, (ip >> 8) & 255, ip & 255);
463
464	if (checkbanned (NULL, buf))
465	{
466	LOG (llevInfo, "Banned host tried to connect: [%s]\n", buf);
467	close (init_sockets[newsocknum].fd);
468	init_sockets[newsocknum].fd = -1;
469	}
470	else
471	{
472	InitConnection (ns, buf);
473	socket_info.nconns++;
474	}
475	}
476	}
477
478	/* Check for any exceptions/input on the sockets */
479	if (pollret)
480	for (i = 1; i < socket_info.allocated_sockets; i++)
481	{
482	if (init_sockets[i].status == Ns_Avail)
483	continue;
484	if (FD_ISSET (init_sockets[i].fd, &tmp_exceptions))
485	{
486	free_newsocket (&init_sockets[i]);
487	init_sockets[i].status = Ns_Avail;
488	socket_info.nconns--;
489	continue;
490	}
491	if (FD_ISSET (init_sockets[i].fd, &tmp_read))
492	{
493	HandleClient (&init_sockets[i], NULL);
494	}
495	if (FD_ISSET (init_sockets[i].fd, &tmp_write))
496	{
497	init_sockets[i].can_write = 1;
498	}
499	}	261	}
500		262
501	/* This does roughly the same thing, but for the players now */	263	rate_avail -= outputbuffer_len ();
502	for (pl = first_player; pl != NULL; pl = next)
503	{
504
505	next = pl->next;
506	if (pl->socket.status == Ns_Dead)
507	continue;
508
509	if (FD_ISSET (pl->socket.fd, &tmp_write))
510	{
511	if (!pl->socket.can_write)
512	{
513	#if 0
514	LOG (llevDebug, "Player %s socket now write enabled\n", pl->ob->name);
515	#endif
516	pl->socket.can_write = 1;
517	write_socket_buffer (&pl->socket);
518	}
519	/* if we get an error on the write_socket buffer, no reason to
520	* continue on this socket.
521	*/
522	if (pl->socket.status == Ns_Dead)
523	continue;
524	}
525	else
526	pl->socket.can_write = 0;
527
528	if (FD_ISSET (pl->socket.fd, &tmp_exceptions))
529	{
530	save_player (pl->ob, 0);
531	if (!QUERY_FLAG (pl->ob, FLAG_REMOVED))
532	{
533	terminate_all_pets (pl->ob);
534	pl->ob->remove ();
535	}
536	leave (pl, 1);
537	final_free_player (pl);
538	}
539	else
540	{
541	HandleClient (&pl->socket, pl);
542	/* If the player has left the game, then the socket status
543	* will be set to this be the leave function. We don't
544	* need to call leave again, as it has already been called
545	* once.
546	*/
547	if (pl->socket.status == Ns_Dead)
548	{
549	save_player (pl->ob, 0);
550	if (!QUERY_FLAG (pl->ob, FLAG_REMOVED))
551	{
552	terminate_all_pets (pl->ob);
553	pl->ob->remove ();
554	}
555	leave (pl, 1);
556	final_free_player (pl);
557	}
558	else
559	{
560
561	/* Update the players stats once per tick. More efficient than
562	* sending them whenever they change, and probably just as useful
563	*/
564	esrv_update_stats (pl);
565	if (pl->last_weight != -1 && pl->last_weight != WEIGHT (pl->ob))
566	{
567	esrv_update_item (UPD_WEIGHT, pl->ob, pl->ob);
568	if (pl->last_weight != WEIGHT (pl->ob))
569	LOG (llevError, "esrv_update_item(UPD_WEIGHT) did not set player weight: is %lu, should be %lu\n",
570	(unsigned long) pl->last_weight, WEIGHT (pl->ob));
571	}
572	/* draw_client_map does sanity checking that map is
573	* valid, so don't do it here.
574	*/
575	draw_client_map (pl->ob);
576	if (pl->socket.update_look)
577	esrv_draw_look (pl->ob);
578	}
579	}
580	}
581	}	264	}
		265
		266	void
		267	client::flush_sockets (void)
		268	{
		269	for (sockvec::iterator i = clients.begin (); i != clients.end (); ++i)
		270	(*i)->flush ();
		271	}
		272
		273	void
		274	client::clock (void)
		275	{
		276	for (sockvec::iterator i = clients.begin (); i != clients.end (); ++i)
		277	(*i)->tick ();
		278
		279	// give them all the same chances
		280	flush_sockets ();
		281
		282	//TODO: should not be done here, either
		283	for (unsigned i = 0; i < clients.size (); ++i)
		284	clients[i]->refcnt_chk ();
		285	}
		286

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Comparing deliantra/server/socket/loop.C (file contents): Revision 1.9 by root, Tue Dec 12 20:53:03 2006 UTC vs. Revision 1.67 by root, Tue Jul 31 20:10:31 2007 UTC

Diff Legend

Comparing deliantra/server/socket/loop.C (file contents):
Revision 1.9 by root, Tue Dec 12 20:53:03 2006 UTC vs.
Revision 1.67 by root, Tue Jul 31 20:10:31 2007 UTC