[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 1.129 by root, Wed Jan 3 00:41:19 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
…		…
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 $FREEZE;
		55	our $RANDOM_MAPS = cf::localdir . "/random";
		56	our %EXT_CORO;
54		57
55	binmode STDOUT;	58	binmode STDOUT;
56	binmode STDERR;	59	binmode STDERR;
57		60
58	# read virtual server time, if available	61	# read virtual server time, if available
…		…
64		67
65	mkdir cf::localdir;	68	mkdir cf::localdir;
66	mkdir cf::localdir . "/" . cf::playerdir;	69	mkdir cf::localdir . "/" . cf::playerdir;
67	mkdir cf::localdir . "/" . cf::tmpdir;	70	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;	71	mkdir cf::localdir . "/" . cf::uniquedir;
		72	mkdir $RANDOM_MAPS;
69		73
70	our %EXT_CORO;	74	# a special map that is always available
		75	our $LINK_MAP;
		76
		77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} \|\| ["/world/world_105_115", 5, 37];
71		78
72	#############################################################################	79	#############################################################################
73		80
74	=head2 GLOBAL VARIABLES	81	=head2 GLOBAL VARIABLES
75		82
…		…
174	sub to_json($) {	181	sub to_json($) {
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]	183	JSON::Syck::Dump $_[0]
177	}	184	}
178		185
		186	=item my $guard = cf::guard { BLOCK }
		187
		188	Run the given callback when the guard object gets destroyed (useful for
		189	coroutine cancellations).
		190
		191	You can call C<< ->cancel >> on the guard object to stop the block from
		192	being executed.
		193
		194	=cut
		195
		196	sub guard(&) {
		197	bless \(my $cb = $_[0]), cf::guard::;
		198	}
		199
		200	sub cf::guard::cancel {
		201	${$_[0]} = sub { };
		202	}
		203
		204	sub cf::guard::DESTROY {
		205	${$_[0]}->();
		206	}
		207
		208	=item cf::lock_wait $string
		209
		210	Wait until the given lock is available. See cf::lock_acquire.
		211
		212	=item my $lock = cf::lock_acquire $string
		213
		214	Wait until the given lock is available and then acquires it and returns
		215	a guard object. If the guard object gets destroyed (goes out of scope,
		216	for example when the coroutine gets canceled), the lock is automatically
		217	returned.
		218
		219	Lock names should begin with a unique identifier (for example, find_map
		220	uses map_find and load_map uses map_load).
		221
		222	=cut
		223
		224	our %LOCK;
		225
		226	sub lock_wait($) {
		227	my ($key) = @_;
		228
		229	# wait for lock, if any
		230	while ($LOCK{$key}) {
		231	push @{ $LOCK{$key} }, $Coro::current;
		232	Coro::schedule;
		233	}
		234	}
		235
		236	sub lock_acquire($) {
		237	my ($key) = @_;
		238
		239	# wait, to be sure we are not locked
		240	lock_wait $key;
		241
		242	$LOCK{$key} = [];
		243
		244	cf::guard {
		245	# wake up all waiters, to be on the safe side
		246	$_->ready for @{ delete $LOCK{$key} };
		247	}
		248	}
		249
		250	=item cf::async { BLOCK }
		251
		252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
		253	error instead of exiting the server in case of a problem.
		254
		255	=cut
		256
		257	sub async(&) {
		258	my ($cb) = @_;
		259
		260	Coro::async {
		261	eval { $cb->() };
		262	warn $@ if $@;
		263	}
		264	}
		265
179	=item cf::sync_job { BLOCK }	266	=item cf::sync_job { BLOCK }
180		267
181	The design of crossfire+ requires that the main coro ($Coro::main) is	268	The design of crossfire+ requires that the main coro ($Coro::main) is
182	always able to handle events or runnable, as crossfire+ is only partly	269	always able to handle events or runnable, as crossfire+ is only partly
183	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	270	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
…		…
190	=cut	277	=cut
191		278
192	sub sync_job(&) {	279	sub sync_job(&) {
193	my ($job) = @_;	280	my ($job) = @_;
194		281
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 == $Coro::main) {	282	if ($Coro::current == $Coro::main) {
		283	# this is the main coro, too bad, we have to block
		284	# till the operation succeeds, freezing the server :/
		285
		286	# TODO: use suspend/resume instead
		287	# (but this is cancel-safe)
		288	local $FREEZE = 1;
		289
		290	my $busy = 1;
		291	my @res;
		292
		293	(Coro::async {
		294	@res = eval { $job->() };
		295	warn $@ if $@;
		296	undef $busy;
208	$coro->prio (Coro::PRIO_MAX);	297	})->prio (Coro::PRIO_MAX);
		298
209	while ($busy) {	299	while ($busy) {
210	Coro::cede_notself;	300	Coro::cede_notself;
211	Event::one_event unless Coro::nready;	301	Event::one_event unless Coro::nready;
212	}	302	}
		303
		304	wantarray ? @res : $res[0]
213	} else {	305	} else {
214	$coro->join;	306	# we are in another coroutine, how wonderful, everything just works
		307
		308	$job->()
215	}	309	}
216
217	wantarray ? @res : $res[0]
218	}	310	}
219		311
220	=item $coro = cf::coro { BLOCK }	312	=item $coro = cf::coro { BLOCK }
221		313
222	Creates and returns a new coro. This coro is automcatially being canceled	314	Creates and returns a new coro. This coro is automcatially being canceled
…		…
225	=cut	317	=cut
226		318
227	sub coro(&) {	319	sub coro(&) {
228	my $cb = shift;	320	my $cb = shift;
229		321
230	my $coro; $coro = async {	322	my $coro = &cf::async ($cb);
231	eval {
232	$cb->();
233	};
234	warn $@ if $@;
235	};
236		323
237	$coro->on_destroy (sub {	324	$coro->on_destroy (sub {
238	delete $EXT_CORO{$coro+0};	325	delete $EXT_CORO{$coro+0};
239	});	326	});
240	$EXT_CORO{$coro+0} = $coro;	327	$EXT_CORO{$coro+0} = $coro;
241		328
242	$coro	329	$coro
243	}	330	}
244		331
		332	sub write_runtime {
		333	my $runtime = cf::localdir . "/runtime";
		334
		335	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		336	or return;
		337
		338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		340	and return;
		341
		342	aio_fsync $fh
		343	and return;
		344
		345	close $fh
		346	or return;
		347
		348	aio_rename "$runtime~", $runtime
		349	and return;
		350
		351	1
		352	}
		353
245	=back	354	=back
246		355
247	=cut	356	=cut
		357
		358	#############################################################################
		359
		360	package cf::path;
		361
		362	sub new {
		363	my ($class, $path, $base) = @_;
		364
		365	$path = $path->as_string if ref $path;
		366
		367	my $self = bless { }, $class;
		368
		369	# {... are special paths that are not touched
		370	# ?xxx/... are special absolute paths
		371	# ?random/... random maps
		372	# /! non-realised random map exit
		373	# /... normal maps
		374	# ~/... per-player maps without a specific player (DO NOT USE)
		375	# ~user/... per-player map of a specific user
		376
		377	if ($path =~ /^{/) {
		378	# fine as it is
		379	} elsif ($path =~ s{^\?random/}{}) {
		380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		381	$self->{random} = cf::from_json $data;
		382	} else {
		383	if ($path =~ s{^~([^/]+)?}{}) {
		384	$self->{user_rel} = 1;
		385
		386	if (defined $1) {
		387	$self->{user} = $1;
		388	} elsif ($base =~ m{^~([^/]+)/}) {
		389	$self->{user} = $1;
		390	} else {
		391	warn "cannot resolve user-relative path without user <$path,$base>\n";
		392	}
		393	} elsif ($path =~ /^\//) {
		394	# already absolute
		395	} else {
		396	$base =~ s{[^/]+/?$}{};
		397	return $class->new ("$base/$path");
		398	}
		399
		400	for ($path) {
		401	redo if s{/\.?/}{/};
		402	redo if s{/[^/]+/\.\./}{/};
		403	}
		404	}
		405
		406	$self->{path} = $path;
		407
		408	$self
		409	}
		410
		411	# the name / primary key / in-game path
		412	sub as_string {
		413	my ($self) = @_;
		414
		415	$self->{user_rel} ? "~$self->{user}$self->{path}"
		416	: $self->{random} ? "?random/$self->{path}"
		417	: $self->{path}
		418	}
		419
		420	# the displayed name, this is a one way mapping
		421	sub visible_name {
		422	my ($self) = @_;
		423
		424	# if (my $rmp = $self->{random}) {
		425	# # todo: be more intelligent about this
		426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		427	# } else {
		428	$self->as_string
		429	# }
		430	}
		431
		432	# escape the /'s in the path
		433	sub _escaped_path {
		434	# ∕ is U+2215
		435	(my $path = $_[0]{path}) =~ s/\//∕/g;
		436	$path
		437	}
		438
		439	# the original (read-only) location
		440	sub load_path {
		441	my ($self) = @_;
		442
		443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		444	}
		445
		446	# the temporary/swap location
		447	sub save_path {
		448	my ($self) = @_;
		449
		450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		453	}
		454
		455	# the unique path, might be eq to save_path
		456	sub uniq_path {
		457	my ($self) = @_;
		458
		459	$self->{user_rel} \|\| $self->{random}
		460	? undef
		461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		462	}
		463
		464	# return random map parameters, or undef
		465	sub random_map_params {
		466	my ($self) = @_;
		467
		468	$self->{random}
		469	}
		470
		471	# this is somewhat ugly, but style maps do need special treatment
		472	sub is_style_map {
		473	$_[0]{path} =~ m{^/styles/}
		474	}
		475
		476	package cf;
248		477
249	#############################################################################	478	#############################################################################
250		479
251	=head2 ATTACHABLE OBJECTS	480	=head2 ATTACHABLE OBJECTS
252		481
…		…
660	or return;	889	or return;
661		890
662	unless (aio_stat "$filename.pst") {	891	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	892	(aio_load "$filename.pst", $av) >= 0
664	or return;	893	or return;
665	$av = eval { (Storable::thaw <$av>)->{objs} };	894	$av = eval { (Storable::thaw $av)->{objs} };
666	}	895	}
667		896
		897	warn sprintf "loading %s (%d)\n",
		898	$filename, length $data, scalar @{$av \|\| []};#d#
668	return ($data, $av);	899	return ($data, $av);
669	}	900	}
670		901
671	#############################################################################	902	#############################################################################
672	# command handling &c	903	# command handling &c
…		…
894	$self->send ("ext " . to_json \%msg);	1125	$self->send ("ext " . to_json \%msg);
895	}	1126	}
896		1127
897	=back	1128	=back
898		1129
		1130
		1131	=head3 cf::map
		1132
		1133	=over 4
		1134
		1135	=cut
		1136
		1137	package cf::map;
		1138
		1139	use Fcntl;
		1140	use Coro::AIO;
		1141
		1142	our $MAX_RESET = 7200;
		1143	our $DEFAULT_RESET = 3600;
		1144
		1145	sub generate_random_map {
		1146	my ($path, $rmp) = @_;
		1147
		1148	# mit "rum" bekleckern, nicht
		1149	cf::map::_create_random_map
		1150	$path,
		1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1154	$rmp->{exit_on_final_map},
		1155	$rmp->{xsize}, $rmp->{ysize},
		1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1161	(cf::region::find $rmp->{region})
		1162	}
		1163
		1164	# and all this just because we cannot iterate over
		1165	# all maps in C++...
		1166	sub change_all_map_light {
		1167	my ($change) = @_;
		1168
		1169	$_->change_map_light ($change)
		1170	for grep $_->outdoor, values %cf::MAP;
		1171	}
		1172
		1173	sub try_load_header($) {
		1174	my ($path) = @_;
		1175
		1176	utf8::encode $path;
		1177	aio_open $path, O_RDONLY, 0
		1178	or return;
		1179
		1180	my $map = cf::map::new
		1181	or return;
		1182
		1183	$map->load_header ($path)
		1184	or return;
		1185
		1186	$map->{load_path} = $path;
		1187
		1188	$map
		1189	}
		1190
		1191	sub find_map;
		1192	sub find_map {
		1193	my ($path, $origin) = @_;
		1194
		1195	#warn "find_map<$path,$origin>\n";#d#
		1196
		1197	$path = new cf::path $path, $origin && $origin->path;
		1198	my $key = $path->as_string;
		1199
		1200	cf::lock_wait "map_find:$key";
		1201
		1202	$cf::MAP{$key} \|\| do {
		1203	my $guard = cf::lock_acquire "map_find:$key";
		1204
		1205	# do it the slow way
		1206	my $map = try_load_header $path->save_path;
		1207
		1208	if ($map) {
		1209	# safety
		1210	$map->{instantiate_time} = $cf::RUNTIME
		1211	if $map->{instantiate_time} > $cf::RUNTIME;
		1212	} else {
		1213	if (my $rmp = $path->random_map_params) {
		1214	$map = generate_random_map $key, $rmp;
		1215	} else {
		1216	$map = try_load_header $path->load_path;
		1217	}
		1218
		1219	$map or return;
		1220
		1221	$map->{load_original} = 1;
		1222	$map->{instantiate_time} = $cf::RUNTIME;
		1223	$map->instantiate;
		1224
		1225	# per-player maps become, after loading, normal maps
		1226	$map->per_player (0) if $path->{user_rel};
		1227	}
		1228
		1229	$map->path ($key);
		1230	$map->{path} = $path;
		1231	$map->{last_save} = $cf::RUNTIME;
		1232	$map->last_access ($cf::RUNTIME);
		1233
		1234	if ($map->should_reset) {
		1235	$map->reset;
		1236	undef $guard;
		1237	$map = find_map $path
		1238	or return;
		1239	}
		1240
		1241	$cf::MAP{$key} = $map
		1242	}
		1243	}
		1244
		1245	sub load {
		1246	my ($self) = @_;
		1247
		1248	my $path = $self->{path};
		1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1250
		1251	return if $self->in_memory != cf::MAP_SWAPPED;
		1252
		1253	$self->in_memory (cf::MAP_LOADING);
		1254
		1255	$self->alloc;
		1256	$self->load_objects ($self->{load_path}, 1)
		1257	or return;
		1258
		1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1260	if delete $self->{load_original};
		1261
		1262	if (my $uniq = $path->uniq_path) {
		1263	utf8::encode $uniq;
		1264	if (aio_open $uniq, O_RDONLY, 0) {
		1265	$self->clear_unique_items;
		1266	$self->load_objects ($uniq, 0);
		1267	}
		1268	}
		1269
		1270	# now do the right thing for maps
		1271	$self->link_multipart_objects;
		1272
		1273	if ($self->{path}->is_style_map) {
		1274	$self->{deny_save} = 1;
		1275	$self->{deny_reset} = 1;
		1276	} else {
		1277	$self->fix_auto_apply;
		1278	$self->decay_objects;
		1279	$self->update_buttons;
		1280	$self->set_darkness_map;
		1281	$self->difficulty ($self->estimate_difficulty)
		1282	unless $self->difficulty;
		1283	$self->activate;
		1284	}
		1285
		1286	$self->in_memory (cf::MAP_IN_MEMORY);
		1287	}
		1288
		1289	sub load_map_sync {
		1290	my ($path, $origin) = @_;
		1291
		1292	#warn "load_map_sync<$path, $origin>\n";#d#
		1293
		1294	cf::sync_job {
		1295	my $map = cf::map::find_map $path, $origin
		1296	or return;
		1297	$map->load;
		1298	$map
		1299	}
		1300	}
		1301
		1302	sub save {
		1303	my ($self) = @_;
		1304
		1305	$self->{last_save} = $cf::RUNTIME;
		1306
		1307	return unless $self->dirty;
		1308
		1309	my $save = $self->{path}->save_path; utf8::encode $save;
		1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1311
		1312	$self->{load_path} = $save;
		1313
		1314	return if $self->{deny_save};
		1315
		1316	if ($uniq) {
		1317	$self->save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS);
		1318	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1319	} else {
		1320	$self->save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS \| cf::IO_UNIQUES);
		1321	}
		1322	}
		1323
		1324	sub swap_out {
		1325	my ($self) = @_;
		1326
		1327	return if $self->players;
		1328	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1329	return if $self->{deny_save};
		1330
		1331	$self->save;
		1332	$self->clear;
		1333	$self->in_memory (cf::MAP_SWAPPED);
		1334	}
		1335
		1336	sub reset_at {
		1337	my ($self) = @_;
		1338
		1339	# TODO: safety, remove and allow resettable per-player maps
		1340	return 1e99 if $self->{path}{user_rel};
		1341	return 1e99 if $self->{deny_reset};
		1342
		1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
		1345
		1346	$time + $to
		1347	}
		1348
		1349	sub should_reset {
		1350	my ($self) = @_;
		1351
		1352	$self->reset_at <= $cf::RUNTIME
		1353	}
		1354
		1355	sub unlink_save {
		1356	my ($self) = @_;
		1357
		1358	utf8::encode (my $save = $self->{path}->save_path);
		1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1361	}
		1362
		1363	sub rename {
		1364	my ($self, $new_path) = @_;
		1365
		1366	$self->unlink_save;
		1367
		1368	delete $cf::MAP{$self->path};
		1369	$self->{path} = new cf::path $new_path;
		1370	$self->path ($self->{path}->as_string);
		1371	$cf::MAP{$self->path} = $self;
		1372
		1373	$self->save;
		1374	}
		1375
		1376	sub reset {
		1377	my ($self) = @_;
		1378
		1379	return if $self->players;
		1380	return if $self->{path}{user_rel};#d#
		1381
		1382	warn "resetting map ", $self->path;#d#
		1383
		1384	delete $cf::MAP{$self->path};
		1385
		1386	$_->clear_links_to ($self) for values %cf::MAP;
		1387
		1388	$self->unlink_save;
		1389	$self->destroy;
		1390	}
		1391
		1392	my $nuke_counter = "aaaa";
		1393
		1394	sub nuke {
		1395	my ($self) = @_;
		1396
		1397	$self->{deny_save} = 1;
		1398	$self->reset_timeout (1);
		1399	$self->rename ("{nuke}/" . ($nuke_counter++));
		1400	$self->reset; # polite request, might not happen
		1401	}
		1402
		1403	sub customise_for {
		1404	my ($map, $ob) = @_;
		1405
		1406	if ($map->per_player) {
		1407	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1408	}
		1409
		1410	$map
		1411	}
		1412
		1413	sub emergency_save {
		1414	local $cf::FREEZE = 1;
		1415
		1416	warn "enter emergency map save\n";
		1417
		1418	cf::sync_job {
		1419	warn "begin emergency map save\n";
		1420	$_->save for values %cf::MAP;
		1421	};
		1422
		1423	warn "end emergency map save\n";
		1424	}
		1425
		1426	package cf;
		1427
		1428	=back
		1429
		1430
899	=head3 cf::object::player	1431	=head3 cf::object::player
900		1432
901	=over 4	1433	=over 4
902		1434
903	=item $player_object->reply ($npc, $msg[, $flags])	1435	=item $player_object->reply ($npc, $msg[, $flags])
…		…
938	(ref $cf::CFG{"may_$access"}	1470	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1471	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	1472	: $cf::CFG{"may_$access"})
941	}	1473	}
942		1474
		1475	=item $player_object->enter_link
		1476
		1477	Freezes the player and moves him/her to a special map (C<{link}>).
		1478
		1479	The player should be reaosnably safe there for short amounts of time. You
		1480	I<MUST> call C<leave_link> as soon as possible, though.
		1481
		1482	=item $player_object->leave_link ($map, $x, $y)
		1483
		1484	Moves the player out of the specila link map onto the given map. If the
		1485	map is not valid (or omitted), the player will be moved back to the
		1486	location he/she was before the call to C<enter_link>, or, if that fails,
		1487	to the emergency map position.
		1488
		1489	Might block.
		1490
		1491	=cut
		1492
		1493	sub cf::object::player::enter_link {
		1494	my ($self) = @_;
		1495
		1496	$self->deactivate_recursive;
		1497
		1498	return if $self->map == $LINK_MAP;
		1499
		1500	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
		1501	if $self->map;
		1502
		1503	$self->enter_map ($LINK_MAP, 20, 20);
		1504	}
		1505
		1506	sub cf::object::player::leave_link {
		1507	my ($self, $map, $x, $y) = @_;
		1508
		1509	my $link_pos = delete $self->{_link_pos};
		1510
		1511	unless ($map) {
		1512	# restore original map position
		1513	($map, $x, $y) = @{ $link_pos \|\| [] };
		1514	$map = cf::map::find_map $map;
		1515
		1516	unless ($map) {
		1517	($map, $x, $y) = @$EMERGENCY_POSITION;
		1518	$map = cf::map::find_map $map
		1519	or die "FATAL: cannot load emergency map\n";
		1520	}
		1521	}
		1522
		1523	($x, $y) = (-1, -1)
		1524	unless (defined $x) && (defined $y);
		1525
		1526	# use -1 or undef as default coordinates, not 0, 0
		1527	($x, $y) = ($map->enter_x, $map->enter_y)
		1528	if $x <=0 && $y <= 0;
		1529
		1530	$map->load;
		1531
		1532	$self->activate_recursive;
		1533	$self->enter_map ($map, $x, $y);
		1534	}
		1535
		1536	cf::player->attach (
		1537	on_logout => sub {
		1538	my ($pl) = @_;
		1539
		1540	# abort map switching before logout
		1541	if ($pl->ob->{_link_pos}) {
		1542	cf::sync_job {
		1543	$pl->ob->leave_link
		1544	};
		1545	}
		1546	},
		1547	on_login => sub {
		1548	my ($pl) = @_;
		1549
		1550	# try to abort aborted map switching on player login :)
		1551	# should happen only on crashes
		1552	if ($pl->ob->{_link_pos}) {
		1553	$pl->ob->enter_link;
		1554	cf::async {
		1555	# we need this sleep as the login has a concurrent enter_exit running
		1556	# and this sleep increases chances of the player not ending up in scorn
		1557	Coro::Timer::sleep 1;
		1558	$pl->ob->leave_link;
		1559	};
		1560	}
		1561	},
		1562	);
		1563
		1564	=item $player_object->goto_map ($path, $x, $y)
		1565
		1566	=cut
		1567
		1568	sub cf::object::player::goto_map {
		1569	my ($self, $path, $x, $y) = @_;
		1570
		1571	$self->enter_link;
		1572
		1573	(cf::async {
		1574	$path = new cf::path $path;
		1575
		1576	my $map = cf::map::find_map $path->as_string;
		1577	$map = $map->customise_for ($self) if $map;
		1578
		1579	# warn "entering ", $map->path, " at ($x, $y)\n"
		1580	# if $map;
		1581
		1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		1583
		1584	$self->leave_link ($map, $x, $y);
		1585	})->prio (1);
		1586	}
		1587
		1588	=item $player_object->enter_exit ($exit_object)
		1589
		1590	=cut
		1591
		1592	sub parse_random_map_params {
		1593	my ($spec) = @_;
		1594
		1595	my $rmp = { # defaults
		1596	xsize => 10,
		1597	ysize => 10,
		1598	};
		1599
		1600	for (split /\n/, $spec) {
		1601	my ($k, $v) = split /\s+/, $_, 2;
		1602
		1603	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1604	}
		1605
		1606	$rmp
		1607	}
		1608
		1609	sub prepare_random_map {
		1610	my ($exit) = @_;
		1611
		1612	# all this does is basically replace the /! path by
		1613	# a new random map path (?random/...) with a seed
		1614	# that depends on the exit object
		1615
		1616	my $rmp = parse_random_map_params $exit->msg;
		1617
		1618	if ($exit->map) {
		1619	$rmp->{region} = $exit->map->region_name;
		1620	$rmp->{origin_map} = $exit->map->path;
		1621	$rmp->{origin_x} = $exit->x;
		1622	$rmp->{origin_y} = $exit->y;
		1623	}
		1624
		1625	$rmp->{random_seed} \|\|= $exit->random_seed;
		1626
		1627	my $data = cf::to_json $rmp;
		1628	my $md5 = Digest::MD5::md5_hex $data;
		1629
		1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY \| O_CREAT, 0666) {
		1631	aio_write $fh, 0, (length $data), $data, 0;
		1632
		1633	$exit->slaying ("?random/$md5");
		1634	$exit->msg (undef);
		1635	}
		1636	}
		1637
		1638	sub cf::object::player::enter_exit {
		1639	my ($self, $exit) = @_;
		1640
		1641	return unless $self->type == cf::PLAYER;
		1642
		1643	$self->enter_link;
		1644
		1645	(cf::async {
		1646	unless (eval {
		1647	prepare_random_map $exit
		1648	if $exit->slaying eq "/!";
		1649
		1650	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1651	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1652
		1653	1;
		1654	}) {
		1655	$self->message ("Something went wrong deep within the crossfire server. "
		1656	. "I'll try to bring you back to the map you were before. "
		1657	. "Please report this to the dungeon master",
		1658	cf::NDI_UNIQUE \| cf::NDI_RED);
		1659
		1660	warn "ERROR in enter_exit: $@";
		1661	$self->leave_link;
		1662	}
		1663	})->prio (1);
		1664	}
		1665
943	=head3 cf::client	1666	=head3 cf::client
944		1667
945	=over 4	1668	=over 4
946		1669
947	=item $client->send_drawinfo ($text, $flags)	1670	=item $client->send_drawinfo ($text, $flags)
…		…
990	on_reply => sub {	1713	on_reply => sub {
991	my ($ns, $msg) = @_;	1714	my ($ns, $msg) = @_;
992		1715
993	# this weird shuffling is so that direct followup queries	1716	# this weird shuffling is so that direct followup queries
994	# get handled first	1717	# get handled first
995	my $queue = delete $ns->{query_queue};	1718	my $queue = delete $ns->{query_queue}
		1719	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		1720
997	(shift @$queue)->[1]->($msg);	1721	(shift @$queue)->[1]->($msg);
998		1722
999	push @{ $ns->{query_queue} }, @$queue;	1723	push @{ $ns->{query_queue} }, @$queue;
1000		1724
…		…
1017	=cut	1741	=cut
1018		1742
1019	sub cf::client::coro {	1743	sub cf::client::coro {
1020	my ($self, $cb) = @_;	1744	my ($self, $cb) = @_;
1021		1745
1022	my $coro; $coro = async {	1746	my $coro = &cf::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		1747
1029	$coro->on_destroy (sub {	1748	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	1749	delete $self->{_coro}{$coro+0};
1031	});	1750	});
1032		1751
…		…
1204		1923
1205	{	1924	{
1206	my $path = cf::localdir . "/database.pst";	1925	my $path = cf::localdir . "/database.pst";
1207		1926
1208	sub db_load() {	1927	sub db_load() {
1209	warn "loading database $path\n";#d# remove later
1210	$DB = stat $path ? Storable::retrieve $path : { };	1928	$DB = stat $path ? Storable::retrieve $path : { };
1211	}	1929	}
1212		1930
1213	my $pid;	1931	my $pid;
1214		1932
1215	sub db_save() {	1933	sub db_save() {
1216	warn "saving database $path\n";#d# remove later
1217	waitpid $pid, 0 if $pid;	1934	waitpid $pid, 0 if $pid;
1218	if (0 == ($pid = fork)) {	1935	if (0 == ($pid = fork)) {
1219	$DB->{_meta}{version} = 1;	1936	$DB->{_meta}{version} = 1;
1220	Storable::nstore $DB, "$path~";	1937	Storable::nstore $DB, "$path~";
1221	rename "$path~", $path;	1938	rename "$path~", $path;
…		…
1272	local $/;	1989	local $/;
1273	*CFG = YAML::Syck::Load <$fh>;	1990	*CFG = YAML::Syck::Load <$fh>;
1274	}	1991	}
1275		1992
1276	sub main {	1993	sub main {
		1994	# we must not ever block the main coroutine
		1995	local $Coro::idle = sub {
		1996	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		1997	(Coro::unblock_sub {
		1998	Event::one_event;
		1999	})->();
		2000	};
		2001
1277	cfg_load;	2002	cfg_load;
1278	db_load;	2003	db_load;
1279	load_extensions;	2004	load_extensions;
1280	Event::loop;	2005	Event::loop;
1281	}	2006	}
1282		2007
1283	#############################################################################	2008	#############################################################################
1284	# initialisation	2009	# initialisation
1285		2010
1286	sub _perl_reload() {	2011	sub reload() {
1287	# can/must only be called in main	2012	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	2013	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	2014	warn "can only reload from main coroutine\n";
1290	return;	2015	return;
1291	}	2016	}
…		…
1373	}	2098	}
1374		2099
1375	warn "reloaded successfully";	2100	warn "reloaded successfully";
1376	};	2101	};
1377		2102
1378	sub perl_reload() {	2103	#############################################################################
1379	_perl_reload;	2104
		2105	unless ($LINK_MAP) {
		2106	$LINK_MAP = cf::map::new;
		2107
		2108	$LINK_MAP->width (41);
		2109	$LINK_MAP->height (41);
		2110	$LINK_MAP->alloc;
		2111	$LINK_MAP->path ("{link}");
		2112	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2113	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2114
		2115	# dirty hack because... archetypes are not yet loaded
		2116	Event->timer (
		2117	after => 2,
		2118	cb => sub {
		2119	$_[0]->w->cancel;
		2120
		2121	# provide some exits "home"
		2122	my $exit = cf::object::new "exit";
		2123
		2124	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2125	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2126	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2127
		2128	$LINK_MAP->insert ($exit->clone, 19, 19);
		2129	$LINK_MAP->insert ($exit->clone, 19, 20);
		2130	$LINK_MAP->insert ($exit->clone, 19, 21);
		2131	$LINK_MAP->insert ($exit->clone, 20, 19);
		2132	$LINK_MAP->insert ($exit->clone, 20, 21);
		2133	$LINK_MAP->insert ($exit->clone, 21, 19);
		2134	$LINK_MAP->insert ($exit->clone, 21, 20);
		2135	$LINK_MAP->insert ($exit->clone, 21, 21);
		2136
		2137	$exit->destroy;
		2138	});
		2139
		2140	$LINK_MAP->{deny_save} = 1;
		2141	$LINK_MAP->{deny_reset} = 1;
		2142
		2143	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1380	}	2144	}
1381		2145
1382	register "<global>", __PACKAGE__;	2146	register "<global>", __PACKAGE__;
1383		2147
1384	register_command "perl-reload" => sub {	2148	register_command "reload" => sub {
1385	my ($who, $arg) = @_;	2149	my ($who, $arg) = @_;
1386		2150
1387	if ($who->flag (FLAG_WIZ)) {	2151	if ($who->flag (FLAG_WIZ)) {
		2152	$who->message ("start of reload.");
		2153	reload;
1388	$who->message ("reloading...");	2154	$who->message ("end of reload.");
1389	_perl_reload;
1390	}	2155	}
1391	};	2156	};
1392		2157
1393	unshift @INC, $LIBDIR;	2158	unshift @INC, $LIBDIR;
1394		2159
…		…
1413	},	2178	},
1414	);	2179	);
1415		2180
1416	IO::AIO::max_poll_time $TICK * 0.2;	2181	IO::AIO::max_poll_time $TICK * 0.2;
1417		2182
		2183	Event->io (
1418	Event->io (fd => IO::AIO::poll_fileno,	2184	fd => IO::AIO::poll_fileno,
1419	poll => 'r',	2185	poll => 'r',
1420	prio => 5,	2186	prio => 5,
1421	data => WF_AUTOCANCEL,	2187	data => WF_AUTOCANCEL,
1422	cb => \&IO::AIO::poll_cb);	2188	cb => \&IO::AIO::poll_cb,
		2189	);
1423		2190
1424	# we must not ever block the main coroutine	2191	Event->timer (
1425	$Coro::idle = sub {	2192	data => WF_AUTOCANCEL,
1426	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2193	after => 0,
1427	warn "FATAL: Coro::idle was called, major BUG\n";	2194	interval => 10,
		2195	cb => sub {
1428	(Coro::unblock_sub {	2196	(Coro::unblock_sub {
1429	Event::one_event;	2197	write_runtime
		2198	or warn "ERROR: unable to write runtime file: $!";
1430	})->();	2199	})->();
1431	};	2200	},
		2201	);
		2202
		2203	END { cf::emergency_save }
1432		2204
1433	1	2205	1
1434		2206

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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 1.129 by root, Wed Jan 3 00:41:19 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 1.129 by root, Wed Jan 3 00:41:19 2007 UTC