[ViewVC] Diff of: cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.106 by root, Sun Dec 31 17:29:22 2006 UTC vs.
Revision 1.138 by root, Fri Jan 5 17:07:17 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3;	13	use Coro 3.3 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use Digest::MD5;
20	use Fcntl;	21	use Fcntl;
21	use IO::AIO 2.31 ();	22	use IO::AIO 2.31 ();
22	use YAML::Syck ();	23	use YAML::Syck ();
23	use Time::HiRes;	24	use Time::HiRes;
24		25
…		…
48	our $UPTIME; $UPTIME \|\|= time;	49	our $UPTIME; $UPTIME \|\|= time;
49	our $RUNTIME;	50	our $RUNTIME;
50		51
51	our %MAP; # all maps	52	our %MAP; # all maps
52	our $LINK_MAP; # the special {link} map	53	our $LINK_MAP; # the special {link} map
53	our $FREEZE;	54	our $RANDOM_MAPS = cf::localdir . "/random";
		55	our %EXT_CORO;
54		56
55	binmode STDOUT;	57	binmode STDOUT;
56	binmode STDERR;	58	binmode STDERR;
57		59
58	# read virtual server time, if available	60	# read virtual server time, if available
…		…
64		66
65	mkdir cf::localdir;	67	mkdir cf::localdir;
66	mkdir cf::localdir . "/" . cf::playerdir;	68	mkdir cf::localdir . "/" . cf::playerdir;
67	mkdir cf::localdir . "/" . cf::tmpdir;	69	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;	70	mkdir cf::localdir . "/" . cf::uniquedir;
		71	mkdir $RANDOM_MAPS;
69		72
70	our %EXT_CORO;	73	# a special map that is always available
		74	our $LINK_MAP;
		75	our $EMERGENCY_POSITION;
71		76
72	#############################################################################	77	#############################################################################
73		78
74	=head2 GLOBAL VARIABLES	79	=head2 GLOBAL VARIABLES
75		80
…		…
174	sub to_json($) {	179	sub to_json($) {
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]	181	JSON::Syck::Dump $_[0]
177	}	182	}
178		183
		184	=item cf::lock_wait $string
		185
		186	Wait until the given lock is available. See cf::lock_acquire.
		187
		188	=item my $lock = cf::lock_acquire $string
		189
		190	Wait until the given lock is available and then acquires it and returns
		191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		192	for example when the coroutine gets canceled), the lock is automatically
		193	returned.
		194
		195	Lock names should begin with a unique identifier (for example, cf::map::find
		196	uses map_find and cf::map::load uses map_load).
		197
		198	=cut
		199
		200	our %LOCK;
		201
		202	sub lock_wait($) {
		203	my ($key) = @_;
		204
		205	# wait for lock, if any
		206	while ($LOCK{$key}) {
		207	push @{ $LOCK{$key} }, $Coro::current;
		208	Coro::schedule;
		209	}
		210	}
		211
		212	sub lock_acquire($) {
		213	my ($key) = @_;
		214
		215	# wait, to be sure we are not locked
		216	lock_wait $key;
		217
		218	$LOCK{$key} = [];
		219
		220	Coro::guard {
		221	# wake up all waiters, to be on the safe side
		222	$_->ready for @{ delete $LOCK{$key} };
		223	}
		224	}
		225
		226	sub freeze_mainloop {
		227	return unless $TICK_WATCHER->is_active;
		228
		229	my $guard = Coro::guard { $TICK_WATCHER->start };
		230	$TICK_WATCHER->stop;
		231	$guard
		232	}
		233
179	=item cf::sync_job { BLOCK }	234	=item cf::sync_job { BLOCK }
180		235
181	The design of crossfire+ requires that the main coro ($Coro::main) is	236	The design of crossfire+ requires that the main coro ($Coro::main) is
182	always able to handle events or runnable, as crossfire+ is only partly	237	always able to handle events or runnable, as crossfire+ is only partly
183	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	238	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
…		…
190	=cut	245	=cut
191		246
192	sub sync_job(&) {	247	sub sync_job(&) {
193	my ($job) = @_;	248	my ($job) = @_;
194		249
195	my $busy = 1;
196	my @res;
197
198	# TODO: use suspend/resume instead
199	local $FREEZE = 1;
200
201	my $coro = Coro::async {
202	@res = eval { $job->() };
203	warn $@ if $@;
204	undef $busy;
205	};
206
207	if ($Coro::current == $Coro::main) {	250	if ($Coro::current == $Coro::main) {
		251	# this is the main coro, too bad, we have to block
		252	# till the operation succeeds, freezing the server :/
		253
		254	# TODO: use suspend/resume instead
		255	# (but this is cancel-safe)
		256	my $freeze_guard = freeze_mainloop;
		257
		258	my $busy = 1;
		259	my @res;
		260
		261	(Coro::async_pool {
		262	@res = eval { $job->() };
		263	warn $@ if $@;
		264	undef $busy;
208	$coro->prio (Coro::PRIO_MAX);	265	})->prio (Coro::PRIO_MAX);
		266
209	while ($busy) {	267	while ($busy) {
210	Coro::cede_notself;	268	Coro::cede_notself;
211	Event::one_event unless Coro::nready;	269	Event::one_event unless Coro::nready;
212	}	270	}
		271
		272	wantarray ? @res : $res[0]
213	} else {	273	} else {
214	$coro->join;	274	# we are in another coroutine, how wonderful, everything just works
		275
		276	$job->()
215	}	277	}
216
217	wantarray ? @res : $res[0]
218	}	278	}
219		279
220	=item $coro = cf::coro { BLOCK }	280	=item $coro = cf::coro { BLOCK }
221		281
222	Creates and returns a new coro. This coro is automcatially being canceled	282	Creates (and readies) and returns a new coro. This coro is automcatially
223	when the extension calling this is being unloaded.	283	being canceled when the extension calling this is being unloaded.
224		284
225	=cut	285	=cut
226		286
227	sub coro(&) {	287	sub coro(&) {
228	my $cb = shift;	288	my $cb = shift;
229		289
230	my $coro; $coro = async {	290	my $coro = &Coro::async_pool ($cb);
231	eval {
232	$cb->();
233	};
234	warn $@ if $@;
235	};
236		291
237	$coro->on_destroy (sub {	292	$coro->on_destroy (sub {
238	delete $EXT_CORO{$coro+0};	293	delete $EXT_CORO{$coro+0};
239	});	294	});
240	$EXT_CORO{$coro+0} = $coro;	295	$EXT_CORO{$coro+0} = $coro;
241		296
242	$coro	297	$coro
243	}	298	}
244		299
		300	sub write_runtime {
		301	my $runtime = cf::localdir . "/runtime";
		302
		303	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		304	or return;
		305
		306	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		307	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		308	and return;
		309
		310	aio_fsync $fh
		311	and return;
		312
		313	close $fh
		314	or return;
		315
		316	aio_rename "$runtime~", $runtime
		317	and return;
		318
		319	1
		320	}
		321
245	=back	322	=back
246		323
247	=cut	324	=cut
		325
		326	#############################################################################
		327
		328	package cf::path;
		329
		330	sub new {
		331	my ($class, $path, $base) = @_;
		332
		333	$path = $path->as_string if ref $path;
		334
		335	my $self = bless { }, $class;
		336
		337	# {... are special paths that are not touched
		338	# ?xxx/... are special absolute paths
		339	# ?random/... random maps
		340	# /! non-realised random map exit
		341	# /... normal maps
		342	# ~/... per-player maps without a specific player (DO NOT USE)
		343	# ~user/... per-player map of a specific user
		344
		345	if ($path =~ /^{/) {
		346	# fine as it is
		347	} elsif ($path =~ s{^\?random/}{}) {
		348	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		349	$self->{random} = cf::from_json $data;
		350	} else {
		351	if ($path =~ s{^~([^/]+)?}{}) {
		352	$self->{user_rel} = 1;
		353
		354	if (defined $1) {
		355	$self->{user} = $1;
		356	} elsif ($base =~ m{^~([^/]+)/}) {
		357	$self->{user} = $1;
		358	} else {
		359	warn "cannot resolve user-relative path without user <$path,$base>\n";
		360	}
		361	} elsif ($path =~ /^\//) {
		362	# already absolute
		363	} else {
		364	$base =~ s{[^/]+/?$}{};
		365	return $class->new ("$base/$path");
		366	}
		367
		368	for ($path) {
		369	redo if s{/\.?/}{/};
		370	redo if s{/[^/]+/\.\./}{/};
		371	}
		372	}
		373
		374	$self->{path} = $path;
		375
		376	$self
		377	}
		378
		379	# the name / primary key / in-game path
		380	sub as_string {
		381	my ($self) = @_;
		382
		383	$self->{user_rel} ? "~$self->{user}$self->{path}"
		384	: $self->{random} ? "?random/$self->{path}"
		385	: $self->{path}
		386	}
		387
		388	# the displayed name, this is a one way mapping
		389	sub visible_name {
		390	my ($self) = @_;
		391
		392	# if (my $rmp = $self->{random}) {
		393	# # todo: be more intelligent about this
		394	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		395	# } else {
		396	$self->as_string
		397	# }
		398	}
		399
		400	# escape the /'s in the path
		401	sub _escaped_path {
		402	# ∕ is U+2215
		403	(my $path = $_[0]{path}) =~ s/\//∕/g;
		404	$path
		405	}
		406
		407	# the original (read-only) location
		408	sub load_path {
		409	my ($self) = @_;
		410
		411	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		412	}
		413
		414	# the temporary/swap location
		415	sub save_path {
		416	my ($self) = @_;
		417
		418	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		419	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		420	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		421	}
		422
		423	# the unique path, might be eq to save_path
		424	sub uniq_path {
		425	my ($self) = @_;
		426
		427	$self->{user_rel} \|\| $self->{random}
		428	? undef
		429	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		430	}
		431
		432	# return random map parameters, or undef
		433	sub random_map_params {
		434	my ($self) = @_;
		435
		436	$self->{random}
		437	}
		438
		439	# this is somewhat ugly, but style maps do need special treatment
		440	sub is_style_map {
		441	$_[0]{path} =~ m{^/styles/}
		442	}
		443
		444	package cf;
248		445
249	#############################################################################	446	#############################################################################
250		447
251	=head2 ATTACHABLE OBJECTS	448	=head2 ATTACHABLE OBJECTS
252		449
…		…
660	or return;	857	or return;
661		858
662	unless (aio_stat "$filename.pst") {	859	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	860	(aio_load "$filename.pst", $av) >= 0
664	or return;	861	or return;
665	$av = eval { (Storable::thaw <$av>)->{objs} };	862	$av = eval { (Storable::thaw $av)->{objs} };
666	}	863	}
667		864
		865	warn sprintf "loading %s (%d)\n",
		866	$filename, length $data, scalar @{$av \|\| []};#d#
668	return ($data, $av);	867	return ($data, $av);
669	}	868	}
670		869
671	#############################################################################	870	#############################################################################
672	# command handling &c	871	# command handling &c
…		…
894	$self->send ("ext " . to_json \%msg);	1093	$self->send ("ext " . to_json \%msg);
895	}	1094	}
896		1095
897	=back	1096	=back
898		1097
		1098
		1099	=head3 cf::map
		1100
		1101	=over 4
		1102
		1103	=cut
		1104
		1105	package cf::map;
		1106
		1107	use Fcntl;
		1108	use Coro::AIO;
		1109
		1110	our $MAX_RESET = 3600;
		1111	our $DEFAULT_RESET = 3000;
		1112
		1113	sub generate_random_map {
		1114	my ($path, $rmp) = @_;
		1115
		1116	# mit "rum" bekleckern, nicht
		1117	cf::map::_create_random_map
		1118	$path,
		1119	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1120	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1121	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1122	$rmp->{exit_on_final_map},
		1123	$rmp->{xsize}, $rmp->{ysize},
		1124	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1125	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1126	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1127	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1128	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1129	(cf::region::find $rmp->{region})
		1130	}
		1131
		1132	# and all this just because we cannot iterate over
		1133	# all maps in C++...
		1134	sub change_all_map_light {
		1135	my ($change) = @_;
		1136
		1137	$_->change_map_light ($change)
		1138	for grep $_->outdoor, values %cf::MAP;
		1139	}
		1140
		1141	sub try_load_header($) {
		1142	my ($path) = @_;
		1143
		1144	utf8::encode $path;
		1145	aio_open $path, O_RDONLY, 0
		1146	or return;
		1147
		1148	my $map = cf::map::new
		1149	or return;
		1150
		1151	# for better error messages only, will be overwritten
		1152	$map->path ($path);
		1153
		1154	$map->load_header ($path)
		1155	or return;
		1156
		1157	$map->{load_path} = $path;
		1158
		1159	$map
		1160	}
		1161
		1162	sub find;
		1163	sub find {
		1164	my ($path, $origin) = @_;
		1165
		1166	#warn "find<$path,$origin>\n";#d#
		1167
		1168	$path = new cf::path $path, $origin && $origin->path;
		1169	my $key = $path->as_string;
		1170
		1171	cf::lock_wait "map_find:$key";
		1172
		1173	$cf::MAP{$key} \|\| do {
		1174	my $guard = cf::lock_acquire "map_find:$key";
		1175
		1176	# do it the slow way
		1177	my $map = try_load_header $path->save_path;
		1178
		1179	Coro::cede;
		1180
		1181	if ($map) {
		1182	$map->last_access ((delete $map->{last_access})
		1183	\|\| $cf::RUNTIME); #d#
		1184	# safety
		1185	$map->{instantiate_time} = $cf::RUNTIME
		1186	if $map->{instantiate_time} > $cf::RUNTIME;
		1187	} else {
		1188	if (my $rmp = $path->random_map_params) {
		1189	$map = generate_random_map $key, $rmp;
		1190	} else {
		1191	$map = try_load_header $path->load_path;
		1192	}
		1193
		1194	$map or return;
		1195
		1196	$map->{load_original} = 1;
		1197	$map->{instantiate_time} = $cf::RUNTIME;
		1198	$map->last_access ($cf::RUNTIME);
		1199	$map->instantiate;
		1200
		1201	# per-player maps become, after loading, normal maps
		1202	$map->per_player (0) if $path->{user_rel};
		1203	}
		1204
		1205	$map->path ($key);
		1206	$map->{path} = $path;
		1207	$map->{last_save} = $cf::RUNTIME;
		1208
		1209	Coro::cede;
		1210
		1211	if ($map->should_reset) {
		1212	$map->reset;
		1213	undef $guard;
		1214	$map = find $path
		1215	or return;
		1216	}
		1217
		1218	$cf::MAP{$key} = $map
		1219	}
		1220	}
		1221
		1222	sub load {
		1223	my ($self) = @_;
		1224
		1225	my $path = $self->{path};
		1226	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1227
		1228	return if $self->in_memory != cf::MAP_SWAPPED;
		1229
		1230	$self->in_memory (cf::MAP_LOADING);
		1231
		1232	$self->alloc;
		1233	$self->load_objects ($self->{load_path}, 1)
		1234	or return;
		1235
		1236	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1237	if delete $self->{load_original};
		1238
		1239	if (my $uniq = $path->uniq_path) {
		1240	utf8::encode $uniq;
		1241	if (aio_open $uniq, O_RDONLY, 0) {
		1242	$self->clear_unique_items;
		1243	$self->load_objects ($uniq, 0);
		1244	}
		1245	}
		1246
		1247	Coro::cede;
		1248
		1249	# now do the right thing for maps
		1250	$self->link_multipart_objects;
		1251
		1252	if ($self->{path}->is_style_map) {
		1253	$self->{deny_save} = 1;
		1254	$self->{deny_reset} = 1;
		1255	} else {
		1256	$self->fix_auto_apply;
		1257	$self->decay_objects;
		1258	$self->update_buttons;
		1259	$self->set_darkness_map;
		1260	$self->difficulty ($self->estimate_difficulty)
		1261	unless $self->difficulty;
		1262	$self->activate;
		1263	}
		1264
		1265	Coro::cede;
		1266
		1267	$self->in_memory (cf::MAP_IN_MEMORY);
		1268	}
		1269
		1270	sub find_sync {
		1271	my ($path, $origin) = @_;
		1272
		1273	cf::sync_job { cf::map::find $path, $origin }
		1274	}
		1275
		1276	sub do_load_sync {
		1277	my ($map) = @_;
		1278
		1279	cf::sync_job { $map->load };
		1280	}
		1281
		1282	sub save {
		1283	my ($self) = @_;
		1284
		1285	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1286
		1287	$self->{last_save} = $cf::RUNTIME;
		1288
		1289	return unless $self->dirty;
		1290
		1291	my $save = $self->{path}->save_path; utf8::encode $save;
		1292	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1293
		1294	$self->{load_path} = $save;
		1295
		1296	return if $self->{deny_save};
		1297
		1298	local $self->{last_access} = $self->last_access;#d#
		1299
		1300	if ($uniq) {
		1301	$self->save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS);
		1302	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1303	} else {
		1304	$self->save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS \| cf::IO_UNIQUES);
		1305	}
		1306	}
		1307
		1308	sub swap_out {
		1309	my ($self) = @_;
		1310
		1311	# save first because save cedes
		1312	$self->save;
		1313
		1314	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1315
		1316	return if $self->players;
		1317	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1318	return if $self->{deny_save};
		1319
		1320	$self->clear;
		1321	$self->in_memory (cf::MAP_SWAPPED);
		1322	}
		1323
		1324	sub reset_at {
		1325	my ($self) = @_;
		1326
		1327	# TODO: safety, remove and allow resettable per-player maps
		1328	return 1e99 if $self->{path}{user_rel};
		1329	return 1e99 if $self->{deny_reset};
		1330
		1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
		1333
		1334	$time + $to
		1335	}
		1336
		1337	sub should_reset {
		1338	my ($self) = @_;
		1339
		1340	$self->reset_at <= $cf::RUNTIME
		1341	}
		1342
		1343	sub unlink_save {
		1344	my ($self) = @_;
		1345
		1346	utf8::encode (my $save = $self->{path}->save_path);
		1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1349	}
		1350
		1351	sub rename {
		1352	my ($self, $new_path) = @_;
		1353
		1354	$self->unlink_save;
		1355
		1356	delete $cf::MAP{$self->path};
		1357	$self->{path} = new cf::path $new_path;
		1358	$self->path ($self->{path}->as_string);
		1359	$cf::MAP{$self->path} = $self;
		1360
		1361	$self->save;
		1362	}
		1363
		1364	sub reset {
		1365	my ($self) = @_;
		1366
		1367	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1368
		1369	return if $self->players;
		1370	return if $self->{path}{user_rel};#d#
		1371
		1372	warn "resetting map ", $self->path;#d#
		1373
		1374	delete $cf::MAP{$self->path};
		1375
		1376	$_->clear_links_to ($self) for values %cf::MAP;
		1377
		1378	$self->unlink_save;
		1379	$self->destroy;
		1380	}
		1381
		1382	my $nuke_counter = "aaaa";
		1383
		1384	sub nuke {
		1385	my ($self) = @_;
		1386
		1387	$self->{deny_save} = 1;
		1388	$self->reset_timeout (1);
		1389	$self->rename ("{nuke}/" . ($nuke_counter++));
		1390	$self->reset; # polite request, might not happen
		1391	}
		1392
		1393	sub customise_for {
		1394	my ($map, $ob) = @_;
		1395
		1396	if ($map->per_player) {
		1397	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1398	}
		1399
		1400	$map
		1401	}
		1402
		1403	sub emergency_save {
		1404	my $freeze_guard = cf::freeze_mainloop;
		1405
		1406	warn "enter emergency map save\n";
		1407
		1408	cf::sync_job {
		1409	warn "begin emergency map save\n";
		1410	$_->save for values %cf::MAP;
		1411	};
		1412
		1413	warn "end emergency map save\n";
		1414	}
		1415
		1416	package cf;
		1417
		1418	=back
		1419
		1420
899	=head3 cf::object::player	1421	=head3 cf::object::player
900		1422
901	=over 4	1423	=over 4
902		1424
903	=item $player_object->reply ($npc, $msg[, $flags])	1425	=item $player_object->reply ($npc, $msg[, $flags])
…		…
938	(ref $cf::CFG{"may_$access"}	1460	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1461	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	1462	: $cf::CFG{"may_$access"})
941	}	1463	}
942		1464
		1465	=item $player_object->enter_link
		1466
		1467	Freezes the player and moves him/her to a special map (C<{link}>).
		1468
		1469	The player should be reaosnably safe there for short amounts of time. You
		1470	I<MUST> call C<leave_link> as soon as possible, though.
		1471
		1472	=item $player_object->leave_link ($map, $x, $y)
		1473
		1474	Moves the player out of the specila link map onto the given map. If the
		1475	map is not valid (or omitted), the player will be moved back to the
		1476	location he/she was before the call to C<enter_link>, or, if that fails,
		1477	to the emergency map position.
		1478
		1479	Might block.
		1480
		1481	=cut
		1482
		1483	sub cf::object::player::enter_link {
		1484	my ($self) = @_;
		1485
		1486	$self->deactivate_recursive;
		1487
		1488	return if $self->map == $LINK_MAP;
		1489
		1490	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
		1491	if $self->map;
		1492
		1493	$self->enter_map ($LINK_MAP, 20, 20);
		1494	}
		1495
		1496	sub cf::object::player::leave_link {
		1497	my ($self, $map, $x, $y) = @_;
		1498
		1499	my $link_pos = delete $self->{_link_pos};
		1500
		1501	unless ($map) {
		1502	# restore original map position
		1503	($map, $x, $y) = @{ $link_pos \|\| [] };
		1504	$map = cf::map::find $map;
		1505
		1506	unless ($map) {
		1507	($map, $x, $y) = @$EMERGENCY_POSITION;
		1508	$map = cf::map::find $map
		1509	or die "FATAL: cannot load emergency map\n";
		1510	}
		1511	}
		1512
		1513	($x, $y) = (-1, -1)
		1514	unless (defined $x) && (defined $y);
		1515
		1516	# use -1 or undef as default coordinates, not 0, 0
		1517	($x, $y) = ($map->enter_x, $map->enter_y)
		1518	if $x <=0 && $y <= 0;
		1519
		1520	$map->load;
		1521
		1522	$self->activate_recursive;
		1523	$self->enter_map ($map, $x, $y);
		1524	}
		1525
		1526	cf::player->attach (
		1527	on_logout => sub {
		1528	my ($pl) = @_;
		1529
		1530	# abort map switching before logout
		1531	if ($pl->ob->{_link_pos}) {
		1532	cf::sync_job {
		1533	$pl->ob->leave_link
		1534	};
		1535	}
		1536	},
		1537	on_login => sub {
		1538	my ($pl) = @_;
		1539
		1540	# try to abort aborted map switching on player login :)
		1541	# should happen only on crashes
		1542	if ($pl->ob->{_link_pos}) {
		1543	$pl->ob->enter_link;
		1544	Coro::async_pool {
		1545	# we need this sleep as the login has a concurrent enter_exit running
		1546	# and this sleep increases chances of the player not ending up in scorn
		1547	Coro::Timer::sleep 1;
		1548	$pl->ob->leave_link;
		1549	};
		1550	}
		1551	},
		1552	);
		1553
		1554	=item $player_object->goto ($path, $x, $y)
		1555
		1556	=cut
		1557
		1558	sub cf::object::player::goto {
		1559	my ($self, $path, $x, $y) = @_;
		1560
		1561	$self->enter_link;
		1562
		1563	(Coro::async_pool {
		1564	$path = new cf::path $path;
		1565
		1566	my $map = cf::map::find $path->as_string;
		1567	$map = $map->customise_for ($self) if $map;
		1568
		1569	# warn "entering ", $map->path, " at ($x, $y)\n"
		1570	# if $map;
		1571
		1572	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		1573
		1574	$self->leave_link ($map, $x, $y);
		1575	})->prio (1);
		1576	}
		1577
		1578	=item $player_object->enter_exit ($exit_object)
		1579
		1580	=cut
		1581
		1582	sub parse_random_map_params {
		1583	my ($spec) = @_;
		1584
		1585	my $rmp = { # defaults
		1586	xsize => 10,
		1587	ysize => 10,
		1588	};
		1589
		1590	for (split /\n/, $spec) {
		1591	my ($k, $v) = split /\s+/, $_, 2;
		1592
		1593	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1594	}
		1595
		1596	$rmp
		1597	}
		1598
		1599	sub prepare_random_map {
		1600	my ($exit) = @_;
		1601
		1602	# all this does is basically replace the /! path by
		1603	# a new random map path (?random/...) with a seed
		1604	# that depends on the exit object
		1605
		1606	my $rmp = parse_random_map_params $exit->msg;
		1607
		1608	if ($exit->map) {
		1609	$rmp->{region} = $exit->map->region_name;
		1610	$rmp->{origin_map} = $exit->map->path;
		1611	$rmp->{origin_x} = $exit->x;
		1612	$rmp->{origin_y} = $exit->y;
		1613	}
		1614
		1615	$rmp->{random_seed} \|\|= $exit->random_seed;
		1616
		1617	my $data = cf::to_json $rmp;
		1618	my $md5 = Digest::MD5::md5_hex $data;
		1619
		1620	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY \| O_CREAT, 0666) {
		1621	aio_write $fh, 0, (length $data), $data, 0;
		1622
		1623	$exit->slaying ("?random/$md5");
		1624	$exit->msg (undef);
		1625	}
		1626	}
		1627
		1628	sub cf::object::player::enter_exit {
		1629	my ($self, $exit) = @_;
		1630
		1631	return unless $self->type == cf::PLAYER;
		1632
		1633	$self->enter_link;
		1634
		1635	(Coro::async_pool {
		1636	$self->deactivate_recursive; # just to be sure
		1637	unless (eval {
		1638	prepare_random_map $exit
		1639	if $exit->slaying eq "/!";
		1640
		1641	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1642	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1643
		1644	1;
		1645	}) {
		1646	$self->message ("Something went wrong deep within the crossfire server. "
		1647	. "I'll try to bring you back to the map you were before. "
		1648	. "Please report this to the dungeon master",
		1649	cf::NDI_UNIQUE \| cf::NDI_RED);
		1650
		1651	warn "ERROR in enter_exit: $@";
		1652	$self->leave_link;
		1653	}
		1654	})->prio (1);
		1655	}
		1656
943	=head3 cf::client	1657	=head3 cf::client
944		1658
945	=over 4	1659	=over 4
946		1660
947	=item $client->send_drawinfo ($text, $flags)	1661	=item $client->send_drawinfo ($text, $flags)
…		…
990	on_reply => sub {	1704	on_reply => sub {
991	my ($ns, $msg) = @_;	1705	my ($ns, $msg) = @_;
992		1706
993	# this weird shuffling is so that direct followup queries	1707	# this weird shuffling is so that direct followup queries
994	# get handled first	1708	# get handled first
995	my $queue = delete $ns->{query_queue};	1709	my $queue = delete $ns->{query_queue}
		1710	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		1711
997	(shift @$queue)->[1]->($msg);	1712	(shift @$queue)->[1]->($msg);
998		1713
999	push @{ $ns->{query_queue} }, @$queue;	1714	push @{ $ns->{query_queue} }, @$queue;
1000		1715
…		…
1017	=cut	1732	=cut
1018		1733
1019	sub cf::client::coro {	1734	sub cf::client::coro {
1020	my ($self, $cb) = @_;	1735	my ($self, $cb) = @_;
1021		1736
1022	my $coro; $coro = async {	1737	my $coro = &Coro::async_pool ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		1738
1029	$coro->on_destroy (sub {	1739	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	1740	delete $self->{_coro}{$coro+0};
1031	});	1741	});
1032		1742
…		…
1204		1914
1205	{	1915	{
1206	my $path = cf::localdir . "/database.pst";	1916	my $path = cf::localdir . "/database.pst";
1207		1917
1208	sub db_load() {	1918	sub db_load() {
1209	warn "loading database $path\n";#d# remove later
1210	$DB = stat $path ? Storable::retrieve $path : { };	1919	$DB = stat $path ? Storable::retrieve $path : { };
1211	}	1920	}
1212		1921
1213	my $pid;	1922	my $pid;
1214		1923
1215	sub db_save() {	1924	sub db_save() {
1216	warn "saving database $path\n";#d# remove later
1217	waitpid $pid, 0 if $pid;	1925	waitpid $pid, 0 if $pid;
1218	if (0 == ($pid = fork)) {	1926	if (0 == ($pid = fork)) {
1219	$DB->{_meta}{version} = 1;	1927	$DB->{_meta}{version} = 1;
1220	Storable::nstore $DB, "$path~";	1928	Storable::nstore $DB, "$path~";
1221	rename "$path~", $path;	1929	rename "$path~", $path;
…		…
1269	open my $fh, "<:utf8", cf::confdir . "/config"	1977	open my $fh, "<:utf8", cf::confdir . "/config"
1270	or return;	1978	or return;
1271		1979
1272	local $/;	1980	local $/;
1273	*CFG = YAML::Syck::Load <$fh>;	1981	*CFG = YAML::Syck::Load <$fh>;
		1982
		1983	$EMERGENCY_POSITION = $CFG{emergency_position} \|\| ["/world/world_105_115", 5, 37];
		1984
		1985	if (exists $CFG{mlockall}) {
		1986	eval {
		1987	$CFG{mlockall} ? &mlockall : &munlockall
		1988	and die "WARNING: m(un)lockall failed: $!\n";
		1989	};
		1990	warn $@ if $@;
		1991	}
1274	}	1992	}
1275		1993
1276	sub main {	1994	sub main {
		1995	# we must not ever block the main coroutine
		1996	local $Coro::idle = sub {
		1997	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		1998	(Coro::unblock_sub {
		1999	Event::one_event;
		2000	})->();
		2001	};
		2002
1277	cfg_load;	2003	cfg_load;
1278	db_load;	2004	db_load;
1279	load_extensions;	2005	load_extensions;
1280	Event::loop;	2006	Event::loop;
1281	}	2007	}
1282		2008
1283	#############################################################################	2009	#############################################################################
1284	# initialisation	2010	# initialisation
1285		2011
1286	sub _perl_reload() {	2012	sub reload() {
1287	# can/must only be called in main	2013	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	2014	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	2015	warn "can only reload from main coroutine\n";
1290	return;	2016	return;
1291	}	2017	}
1292		2018
1293	warn "reloading...";	2019	warn "reloading...";
1294		2020
1295	local $FREEZE = 1;	2021	my $guard = freeze_mainloop;
1296	cf::emergency_save;	2022	cf::emergency_save;
1297		2023
1298	eval {	2024	eval {
1299	# if anything goes wrong in here, we should simply crash as we already saved	2025	# if anything goes wrong in here, we should simply crash as we already saved
1300		2026
…		…
1373	}	2099	}
1374		2100
1375	warn "reloaded successfully";	2101	warn "reloaded successfully";
1376	};	2102	};
1377		2103
1378	sub perl_reload() {	2104	#############################################################################
1379	_perl_reload;	2105
		2106	unless ($LINK_MAP) {
		2107	$LINK_MAP = cf::map::new;
		2108
		2109	$LINK_MAP->width (41);
		2110	$LINK_MAP->height (41);
		2111	$LINK_MAP->alloc;
		2112	$LINK_MAP->path ("{link}");
		2113	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2114	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2115
		2116	# dirty hack because... archetypes are not yet loaded
		2117	Event->timer (
		2118	after => 2,
		2119	cb => sub {
		2120	$_[0]->w->cancel;
		2121
		2122	# provide some exits "home"
		2123	my $exit = cf::object::new "exit";
		2124
		2125	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2126	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2127	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2128
		2129	$LINK_MAP->insert ($exit->clone, 19, 19);
		2130	$LINK_MAP->insert ($exit->clone, 19, 20);
		2131	$LINK_MAP->insert ($exit->clone, 19, 21);
		2132	$LINK_MAP->insert ($exit->clone, 20, 19);
		2133	$LINK_MAP->insert ($exit->clone, 20, 21);
		2134	$LINK_MAP->insert ($exit->clone, 21, 19);
		2135	$LINK_MAP->insert ($exit->clone, 21, 20);
		2136	$LINK_MAP->insert ($exit->clone, 21, 21);
		2137
		2138	$exit->destroy;
		2139	});
		2140
		2141	$LINK_MAP->{deny_save} = 1;
		2142	$LINK_MAP->{deny_reset} = 1;
		2143
		2144	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1380	}	2145	}
1381		2146
1382	register "<global>", __PACKAGE__;	2147	register "<global>", __PACKAGE__;
1383		2148
1384	register_command "perl-reload" => sub {	2149	register_command "reload" => sub {
1385	my ($who, $arg) = @_;	2150	my ($who, $arg) = @_;
1386		2151
1387	if ($who->flag (FLAG_WIZ)) {	2152	if ($who->flag (FLAG_WIZ)) {
		2153	$who->message ("start of reload.");
		2154	reload;
1388	$who->message ("reloading...");	2155	$who->message ("end of reload.");
1389	_perl_reload;
1390	}	2156	}
1391	};	2157	};
1392		2158
1393	unshift @INC, $LIBDIR;	2159	unshift @INC, $LIBDIR;
1394		2160
…		…
1396	reentrant => 0,	2162	reentrant => 0,
1397	prio => 0,	2163	prio => 0,
1398	at => $NEXT_TICK \|\| $TICK,	2164	at => $NEXT_TICK \|\| $TICK,
1399	data => WF_AUTOCANCEL,	2165	data => WF_AUTOCANCEL,
1400	cb => sub {	2166	cb => sub {
1401	unless ($FREEZE) {
1402	cf::server_tick; # one server iteration	2167	cf::server_tick; # one server iteration
1403	$RUNTIME += $TICK;	2168	$RUNTIME += $TICK;
1404	}
1405
1406	$NEXT_TICK += $TICK;	2169	$NEXT_TICK += $TICK;
1407		2170
1408	# if we are delayed by four ticks or more, skip them all	2171	# if we are delayed by four ticks or more, skip them all
1409	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2172	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1410		2173
…		…
1413	},	2176	},
1414	);	2177	);
1415		2178
1416	IO::AIO::max_poll_time $TICK * 0.2;	2179	IO::AIO::max_poll_time $TICK * 0.2;
1417		2180
		2181	Event->io (
1418	Event->io (fd => IO::AIO::poll_fileno,	2182	fd => IO::AIO::poll_fileno,
1419	poll => 'r',	2183	poll => 'r',
1420	prio => 5,	2184	prio => 5,
1421	data => WF_AUTOCANCEL,	2185	data => WF_AUTOCANCEL,
1422	cb => \&IO::AIO::poll_cb);	2186	cb => \&IO::AIO::poll_cb,
		2187	);
1423		2188
1424	# we must not ever block the main coroutine	2189	Event->timer (
1425	$Coro::idle = sub {	2190	data => WF_AUTOCANCEL,
1426	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2191	after => 0,
1427	warn "FATAL: Coro::idle was called, major BUG\n";	2192	interval => 10,
		2193	cb => sub {
1428	(Coro::unblock_sub {	2194	(Coro::unblock_sub {
1429	Event::one_event;	2195	write_runtime
		2196	or warn "ERROR: unable to write runtime file: $!";
1430	})->();	2197	})->();
1431	};	2198	},
		2199	);
		2200
		2201	END { cf::emergency_save }
1432		2202
1433	1	2203	1
1434		2204

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.106 by root, Sun Dec 31 17:29:22 2006 UTC vs. Revision 1.138 by root, Fri Jan 5 17:07:17 2007 UTC

Diff Legend

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.106 by root, Sun Dec 31 17:29:22 2006 UTC vs.
Revision 1.138 by root, Fri Jan 5 17:07:17 2007 UTC