[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 1.137 by root, Fri Jan 5 10:23:05 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	=item cf::async { BLOCK }
		227
		228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
		229	error instead of exiting the server in case of a problem.
		230
		231	=cut
		232
		233	sub async(&) {
		234	my ($cb) = @_;
		235
		236	Coro::async {
		237	eval { $cb->() };
		238	warn $@ if $@;
		239	}
		240	}
		241
		242	sub freeze_mainloop {
		243	return unless $TICK_WATCHER->is_active;
		244
		245	my $guard = Coro::guard { $TICK_WATCHER->start };
		246	$TICK_WATCHER->stop;
		247	$guard
		248	}
		249
179	=item cf::sync_job { BLOCK }	250	=item cf::sync_job { BLOCK }
180		251
181	The design of crossfire+ requires that the main coro ($Coro::main) is	252	The design of crossfire+ requires that the main coro ($Coro::main) is
182	always able to handle events or runnable, as crossfire+ is only partly	253	always able to handle events or runnable, as crossfire+ is only partly
183	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
…		…
190	=cut	261	=cut
191		262
192	sub sync_job(&) {	263	sub sync_job(&) {
193	my ($job) = @_;	264	my ($job) = @_;
194		265
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 == $Coro::main) {	266	if ($Coro::current == $Coro::main) {
		267	# this is the main coro, too bad, we have to block
		268	# till the operation succeeds, freezing the server :/
		269
		270	# TODO: use suspend/resume instead
		271	# (but this is cancel-safe)
		272	my $freeze_guard = freeze_mainloop;
		273
		274	my $busy = 1;
		275	my @res;
		276
		277	(Coro::async {
		278	@res = eval { $job->() };
		279	warn $@ if $@;
		280	undef $busy;
208	$coro->prio (Coro::PRIO_MAX);	281	})->prio (Coro::PRIO_MAX);
		282
209	while ($busy) {	283	while ($busy) {
210	Coro::cede_notself;	284	Coro::cede_notself;
211	Event::one_event unless Coro::nready;	285	Event::one_event unless Coro::nready;
212	}	286	}
		287
		288	wantarray ? @res : $res[0]
213	} else {	289	} else {
214	$coro->join;	290	# we are in another coroutine, how wonderful, everything just works
		291
		292	$job->()
215	}	293	}
216
217	wantarray ? @res : $res[0]
218	}	294	}
219		295
220	=item $coro = cf::coro { BLOCK }	296	=item $coro = cf::coro { BLOCK }
221		297
222	Creates and returns a new coro. This coro is automcatially being canceled	298	Creates and returns a new coro. This coro is automcatially being canceled
…		…
225	=cut	301	=cut
226		302
227	sub coro(&) {	303	sub coro(&) {
228	my $cb = shift;	304	my $cb = shift;
229		305
230	my $coro; $coro = async {	306	my $coro = &cf::async ($cb);
231	eval {
232	$cb->();
233	};
234	warn $@ if $@;
235	};
236		307
237	$coro->on_destroy (sub {	308	$coro->on_destroy (sub {
238	delete $EXT_CORO{$coro+0};	309	delete $EXT_CORO{$coro+0};
239	});	310	});
240	$EXT_CORO{$coro+0} = $coro;	311	$EXT_CORO{$coro+0} = $coro;
241		312
242	$coro	313	$coro
243	}	314	}
244		315
		316	sub write_runtime {
		317	my $runtime = cf::localdir . "/runtime";
		318
		319	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		320	or return;
		321
		322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		324	and return;
		325
		326	aio_fsync $fh
		327	and return;
		328
		329	close $fh
		330	or return;
		331
		332	aio_rename "$runtime~", $runtime
		333	and return;
		334
		335	1
		336	}
		337
245	=back	338	=back
246		339
247	=cut	340	=cut
		341
		342	#############################################################################
		343
		344	package cf::path;
		345
		346	sub new {
		347	my ($class, $path, $base) = @_;
		348
		349	$path = $path->as_string if ref $path;
		350
		351	my $self = bless { }, $class;
		352
		353	# {... are special paths that are not touched
		354	# ?xxx/... are special absolute paths
		355	# ?random/... random maps
		356	# /! non-realised random map exit
		357	# /... normal maps
		358	# ~/... per-player maps without a specific player (DO NOT USE)
		359	# ~user/... per-player map of a specific user
		360
		361	if ($path =~ /^{/) {
		362	# fine as it is
		363	} elsif ($path =~ s{^\?random/}{}) {
		364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		365	$self->{random} = cf::from_json $data;
		366	} else {
		367	if ($path =~ s{^~([^/]+)?}{}) {
		368	$self->{user_rel} = 1;
		369
		370	if (defined $1) {
		371	$self->{user} = $1;
		372	} elsif ($base =~ m{^~([^/]+)/}) {
		373	$self->{user} = $1;
		374	} else {
		375	warn "cannot resolve user-relative path without user <$path,$base>\n";
		376	}
		377	} elsif ($path =~ /^\//) {
		378	# already absolute
		379	} else {
		380	$base =~ s{[^/]+/?$}{};
		381	return $class->new ("$base/$path");
		382	}
		383
		384	for ($path) {
		385	redo if s{/\.?/}{/};
		386	redo if s{/[^/]+/\.\./}{/};
		387	}
		388	}
		389
		390	$self->{path} = $path;
		391
		392	$self
		393	}
		394
		395	# the name / primary key / in-game path
		396	sub as_string {
		397	my ($self) = @_;
		398
		399	$self->{user_rel} ? "~$self->{user}$self->{path}"
		400	: $self->{random} ? "?random/$self->{path}"
		401	: $self->{path}
		402	}
		403
		404	# the displayed name, this is a one way mapping
		405	sub visible_name {
		406	my ($self) = @_;
		407
		408	# if (my $rmp = $self->{random}) {
		409	# # todo: be more intelligent about this
		410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		411	# } else {
		412	$self->as_string
		413	# }
		414	}
		415
		416	# escape the /'s in the path
		417	sub _escaped_path {
		418	# ∕ is U+2215
		419	(my $path = $_[0]{path}) =~ s/\//∕/g;
		420	$path
		421	}
		422
		423	# the original (read-only) location
		424	sub load_path {
		425	my ($self) = @_;
		426
		427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		428	}
		429
		430	# the temporary/swap location
		431	sub save_path {
		432	my ($self) = @_;
		433
		434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		437	}
		438
		439	# the unique path, might be eq to save_path
		440	sub uniq_path {
		441	my ($self) = @_;
		442
		443	$self->{user_rel} \|\| $self->{random}
		444	? undef
		445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		446	}
		447
		448	# return random map parameters, or undef
		449	sub random_map_params {
		450	my ($self) = @_;
		451
		452	$self->{random}
		453	}
		454
		455	# this is somewhat ugly, but style maps do need special treatment
		456	sub is_style_map {
		457	$_[0]{path} =~ m{^/styles/}
		458	}
		459
		460	package cf;
248		461
249	#############################################################################	462	#############################################################################
250		463
251	=head2 ATTACHABLE OBJECTS	464	=head2 ATTACHABLE OBJECTS
252		465
…		…
660	or return;	873	or return;
661		874
662	unless (aio_stat "$filename.pst") {	875	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	876	(aio_load "$filename.pst", $av) >= 0
664	or return;	877	or return;
665	$av = eval { (Storable::thaw <$av>)->{objs} };	878	$av = eval { (Storable::thaw $av)->{objs} };
666	}	879	}
667		880
		881	warn sprintf "loading %s (%d)\n",
		882	$filename, length $data, scalar @{$av \|\| []};#d#
668	return ($data, $av);	883	return ($data, $av);
669	}	884	}
670		885
671	#############################################################################	886	#############################################################################
672	# command handling &c	887	# command handling &c
…		…
894	$self->send ("ext " . to_json \%msg);	1109	$self->send ("ext " . to_json \%msg);
895	}	1110	}
896		1111
897	=back	1112	=back
898		1113
		1114
		1115	=head3 cf::map
		1116
		1117	=over 4
		1118
		1119	=cut
		1120
		1121	package cf::map;
		1122
		1123	use Fcntl;
		1124	use Coro::AIO;
		1125
		1126	our $MAX_RESET = 3600;
		1127	our $DEFAULT_RESET = 3000;
		1128
		1129	sub generate_random_map {
		1130	my ($path, $rmp) = @_;
		1131
		1132	# mit "rum" bekleckern, nicht
		1133	cf::map::_create_random_map
		1134	$path,
		1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1138	$rmp->{exit_on_final_map},
		1139	$rmp->{xsize}, $rmp->{ysize},
		1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1145	(cf::region::find $rmp->{region})
		1146	}
		1147
		1148	# and all this just because we cannot iterate over
		1149	# all maps in C++...
		1150	sub change_all_map_light {
		1151	my ($change) = @_;
		1152
		1153	$_->change_map_light ($change)
		1154	for grep $_->outdoor, values %cf::MAP;
		1155	}
		1156
		1157	sub try_load_header($) {
		1158	my ($path) = @_;
		1159
		1160	utf8::encode $path;
		1161	aio_open $path, O_RDONLY, 0
		1162	or return;
		1163
		1164	my $map = cf::map::new
		1165	or return;
		1166
		1167	# for better error messages only, will be overwritten
		1168	$map->path ($path);
		1169
		1170	$map->load_header ($path)
		1171	or return;
		1172
		1173	$map->{load_path} = $path;
		1174
		1175	$map
		1176	}
		1177
		1178	sub find;
		1179	sub find {
		1180	my ($path, $origin) = @_;
		1181
		1182	#warn "find<$path,$origin>\n";#d#
		1183
		1184	$path = new cf::path $path, $origin && $origin->path;
		1185	my $key = $path->as_string;
		1186
		1187	cf::lock_wait "map_find:$key";
		1188
		1189	$cf::MAP{$key} \|\| do {
		1190	my $guard = cf::lock_acquire "map_find:$key";
		1191
		1192	# do it the slow way
		1193	my $map = try_load_header $path->save_path;
		1194
		1195	Coro::cede;
		1196
		1197	if ($map) {
		1198	$map->last_access ((delete $map->{last_access})
		1199	\|\| $cf::RUNTIME); #d#
		1200	# safety
		1201	$map->{instantiate_time} = $cf::RUNTIME
		1202	if $map->{instantiate_time} > $cf::RUNTIME;
		1203	} else {
		1204	if (my $rmp = $path->random_map_params) {
		1205	$map = generate_random_map $key, $rmp;
		1206	} else {
		1207	$map = try_load_header $path->load_path;
		1208	}
		1209
		1210	$map or return;
		1211
		1212	$map->{load_original} = 1;
		1213	$map->{instantiate_time} = $cf::RUNTIME;
		1214	$map->last_access ($cf::RUNTIME);
		1215	$map->instantiate;
		1216
		1217	# per-player maps become, after loading, normal maps
		1218	$map->per_player (0) if $path->{user_rel};
		1219	}
		1220
		1221	$map->path ($key);
		1222	$map->{path} = $path;
		1223	$map->{last_save} = $cf::RUNTIME;
		1224
		1225	Coro::cede;
		1226
		1227	if ($map->should_reset) {
		1228	$map->reset;
		1229	undef $guard;
		1230	$map = find $path
		1231	or return;
		1232	}
		1233
		1234	$cf::MAP{$key} = $map
		1235	}
		1236	}
		1237
		1238	sub load {
		1239	my ($self) = @_;
		1240
		1241	my $path = $self->{path};
		1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1243
		1244	return if $self->in_memory != cf::MAP_SWAPPED;
		1245
		1246	$self->in_memory (cf::MAP_LOADING);
		1247
		1248	$self->alloc;
		1249	$self->load_objects ($self->{load_path}, 1)
		1250	or return;
		1251
		1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1253	if delete $self->{load_original};
		1254
		1255	if (my $uniq = $path->uniq_path) {
		1256	utf8::encode $uniq;
		1257	if (aio_open $uniq, O_RDONLY, 0) {
		1258	$self->clear_unique_items;
		1259	$self->load_objects ($uniq, 0);
		1260	}
		1261	}
		1262
		1263	Coro::cede;
		1264
		1265	# now do the right thing for maps
		1266	$self->link_multipart_objects;
		1267
		1268	if ($self->{path}->is_style_map) {
		1269	$self->{deny_save} = 1;
		1270	$self->{deny_reset} = 1;
		1271	} else {
		1272	$self->fix_auto_apply;
		1273	$self->decay_objects;
		1274	$self->update_buttons;
		1275	$self->set_darkness_map;
		1276	$self->difficulty ($self->estimate_difficulty)
		1277	unless $self->difficulty;
		1278	$self->activate;
		1279	}
		1280
		1281	Coro::cede;
		1282
		1283	$self->in_memory (cf::MAP_IN_MEMORY);
		1284	}
		1285
		1286	sub find_sync {
		1287	my ($path, $origin) = @_;
		1288
		1289	cf::sync_job { cf::map::find $path, $origin }
		1290	}
		1291
		1292	sub do_load_sync {
		1293	my ($map) = @_;
		1294
		1295	cf::sync_job { $map->load };
		1296	}
		1297
		1298	sub save {
		1299	my ($self) = @_;
		1300
		1301	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1302
		1303	$self->{last_save} = $cf::RUNTIME;
		1304
		1305	return unless $self->dirty;
		1306
		1307	my $save = $self->{path}->save_path; utf8::encode $save;
		1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1309
		1310	$self->{load_path} = $save;
		1311
		1312	return if $self->{deny_save};
		1313
		1314	local $self->{last_access} = $self->last_access;#d#
		1315
		1316	if ($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	# save first because save cedes
		1328	$self->save;
		1329
		1330	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1331
		1332	return if $self->players;
		1333	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1334	return if $self->{deny_save};
		1335
		1336	$self->clear;
		1337	$self->in_memory (cf::MAP_SWAPPED);
		1338	}
		1339
		1340	sub reset_at {
		1341	my ($self) = @_;
		1342
		1343	# TODO: safety, remove and allow resettable per-player maps
		1344	return 1e99 if $self->{path}{user_rel};
		1345	return 1e99 if $self->{deny_reset};
		1346
		1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
		1349
		1350	$time + $to
		1351	}
		1352
		1353	sub should_reset {
		1354	my ($self) = @_;
		1355
		1356	$self->reset_at <= $cf::RUNTIME
		1357	}
		1358
		1359	sub unlink_save {
		1360	my ($self) = @_;
		1361
		1362	utf8::encode (my $save = $self->{path}->save_path);
		1363	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1364	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1365	}
		1366
		1367	sub rename {
		1368	my ($self, $new_path) = @_;
		1369
		1370	$self->unlink_save;
		1371
		1372	delete $cf::MAP{$self->path};
		1373	$self->{path} = new cf::path $new_path;
		1374	$self->path ($self->{path}->as_string);
		1375	$cf::MAP{$self->path} = $self;
		1376
		1377	$self->save;
		1378	}
		1379
		1380	sub reset {
		1381	my ($self) = @_;
		1382
		1383	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1384
		1385	return if $self->players;
		1386	return if $self->{path}{user_rel};#d#
		1387
		1388	warn "resetting map ", $self->path;#d#
		1389
		1390	delete $cf::MAP{$self->path};
		1391
		1392	$_->clear_links_to ($self) for values %cf::MAP;
		1393
		1394	$self->unlink_save;
		1395	$self->destroy;
		1396	}
		1397
		1398	my $nuke_counter = "aaaa";
		1399
		1400	sub nuke {
		1401	my ($self) = @_;
		1402
		1403	$self->{deny_save} = 1;
		1404	$self->reset_timeout (1);
		1405	$self->rename ("{nuke}/" . ($nuke_counter++));
		1406	$self->reset; # polite request, might not happen
		1407	}
		1408
		1409	sub customise_for {
		1410	my ($map, $ob) = @_;
		1411
		1412	if ($map->per_player) {
		1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1414	}
		1415
		1416	$map
		1417	}
		1418
		1419	sub emergency_save {
		1420	my $freeze_guard = cf::freeze_mainloop;
		1421
		1422	warn "enter emergency map save\n";
		1423
		1424	cf::sync_job {
		1425	warn "begin emergency map save\n";
		1426	$_->save for values %cf::MAP;
		1427	};
		1428
		1429	warn "end emergency map save\n";
		1430	}
		1431
		1432	package cf;
		1433
		1434	=back
		1435
		1436
899	=head3 cf::object::player	1437	=head3 cf::object::player
900		1438
901	=over 4	1439	=over 4
902		1440
903	=item $player_object->reply ($npc, $msg[, $flags])	1441	=item $player_object->reply ($npc, $msg[, $flags])
…		…
938	(ref $cf::CFG{"may_$access"}	1476	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1477	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	1478	: $cf::CFG{"may_$access"})
941	}	1479	}
942		1480
		1481	=item $player_object->enter_link
		1482
		1483	Freezes the player and moves him/her to a special map (C<{link}>).
		1484
		1485	The player should be reaosnably safe there for short amounts of time. You
		1486	I<MUST> call C<leave_link> as soon as possible, though.
		1487
		1488	=item $player_object->leave_link ($map, $x, $y)
		1489
		1490	Moves the player out of the specila link map onto the given map. If the
		1491	map is not valid (or omitted), the player will be moved back to the
		1492	location he/she was before the call to C<enter_link>, or, if that fails,
		1493	to the emergency map position.
		1494
		1495	Might block.
		1496
		1497	=cut
		1498
		1499	sub cf::object::player::enter_link {
		1500	my ($self) = @_;
		1501
		1502	$self->deactivate_recursive;
		1503
		1504	return if $self->map == $LINK_MAP;
		1505
		1506	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
		1507	if $self->map;
		1508
		1509	$self->enter_map ($LINK_MAP, 20, 20);
		1510	}
		1511
		1512	sub cf::object::player::leave_link {
		1513	my ($self, $map, $x, $y) = @_;
		1514
		1515	my $link_pos = delete $self->{_link_pos};
		1516
		1517	unless ($map) {
		1518	# restore original map position
		1519	($map, $x, $y) = @{ $link_pos \|\| [] };
		1520	$map = cf::map::find $map;
		1521
		1522	unless ($map) {
		1523	($map, $x, $y) = @$EMERGENCY_POSITION;
		1524	$map = cf::map::find $map
		1525	or die "FATAL: cannot load emergency map\n";
		1526	}
		1527	}
		1528
		1529	($x, $y) = (-1, -1)
		1530	unless (defined $x) && (defined $y);
		1531
		1532	# use -1 or undef as default coordinates, not 0, 0
		1533	($x, $y) = ($map->enter_x, $map->enter_y)
		1534	if $x <=0 && $y <= 0;
		1535
		1536	$map->load;
		1537
		1538	$self->activate_recursive;
		1539	$self->enter_map ($map, $x, $y);
		1540	}
		1541
		1542	cf::player->attach (
		1543	on_logout => sub {
		1544	my ($pl) = @_;
		1545
		1546	# abort map switching before logout
		1547	if ($pl->ob->{_link_pos}) {
		1548	cf::sync_job {
		1549	$pl->ob->leave_link
		1550	};
		1551	}
		1552	},
		1553	on_login => sub {
		1554	my ($pl) = @_;
		1555
		1556	# try to abort aborted map switching on player login :)
		1557	# should happen only on crashes
		1558	if ($pl->ob->{_link_pos}) {
		1559	$pl->ob->enter_link;
		1560	cf::async {
		1561	# we need this sleep as the login has a concurrent enter_exit running
		1562	# and this sleep increases chances of the player not ending up in scorn
		1563	Coro::Timer::sleep 1;
		1564	$pl->ob->leave_link;
		1565	};
		1566	}
		1567	},
		1568	);
		1569
		1570	=item $player_object->goto ($path, $x, $y)
		1571
		1572	=cut
		1573
		1574	sub cf::object::player::goto {
		1575	my ($self, $path, $x, $y) = @_;
		1576
		1577	$self->enter_link;
		1578
		1579	(cf::async {
		1580	$path = new cf::path $path;
		1581
		1582	my $map = cf::map::find $path->as_string;
		1583	$map = $map->customise_for ($self) if $map;
		1584
		1585	# warn "entering ", $map->path, " at ($x, $y)\n"
		1586	# if $map;
		1587
		1588	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		1589
		1590	$self->leave_link ($map, $x, $y);
		1591	})->prio (1);
		1592	}
		1593
		1594	=item $player_object->enter_exit ($exit_object)
		1595
		1596	=cut
		1597
		1598	sub parse_random_map_params {
		1599	my ($spec) = @_;
		1600
		1601	my $rmp = { # defaults
		1602	xsize => 10,
		1603	ysize => 10,
		1604	};
		1605
		1606	for (split /\n/, $spec) {
		1607	my ($k, $v) = split /\s+/, $_, 2;
		1608
		1609	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1610	}
		1611
		1612	$rmp
		1613	}
		1614
		1615	sub prepare_random_map {
		1616	my ($exit) = @_;
		1617
		1618	# all this does is basically replace the /! path by
		1619	# a new random map path (?random/...) with a seed
		1620	# that depends on the exit object
		1621
		1622	my $rmp = parse_random_map_params $exit->msg;
		1623
		1624	if ($exit->map) {
		1625	$rmp->{region} = $exit->map->region_name;
		1626	$rmp->{origin_map} = $exit->map->path;
		1627	$rmp->{origin_x} = $exit->x;
		1628	$rmp->{origin_y} = $exit->y;
		1629	}
		1630
		1631	$rmp->{random_seed} \|\|= $exit->random_seed;
		1632
		1633	my $data = cf::to_json $rmp;
		1634	my $md5 = Digest::MD5::md5_hex $data;
		1635
		1636	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY \| O_CREAT, 0666) {
		1637	aio_write $fh, 0, (length $data), $data, 0;
		1638
		1639	$exit->slaying ("?random/$md5");
		1640	$exit->msg (undef);
		1641	}
		1642	}
		1643
		1644	sub cf::object::player::enter_exit {
		1645	my ($self, $exit) = @_;
		1646
		1647	return unless $self->type == cf::PLAYER;
		1648
		1649	$self->enter_link;
		1650
		1651	(cf::async {
		1652	$self->deactivate_recursive; # just to be sure
		1653	unless (eval {
		1654	prepare_random_map $exit
		1655	if $exit->slaying eq "/!";
		1656
		1657	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1659
		1660	1;
		1661	}) {
		1662	$self->message ("Something went wrong deep within the crossfire server. "
		1663	. "I'll try to bring you back to the map you were before. "
		1664	. "Please report this to the dungeon master",
		1665	cf::NDI_UNIQUE \| cf::NDI_RED);
		1666
		1667	warn "ERROR in enter_exit: $@";
		1668	$self->leave_link;
		1669	}
		1670	})->prio (1);
		1671	}
		1672
943	=head3 cf::client	1673	=head3 cf::client
944		1674
945	=over 4	1675	=over 4
946		1676
947	=item $client->send_drawinfo ($text, $flags)	1677	=item $client->send_drawinfo ($text, $flags)
…		…
990	on_reply => sub {	1720	on_reply => sub {
991	my ($ns, $msg) = @_;	1721	my ($ns, $msg) = @_;
992		1722
993	# this weird shuffling is so that direct followup queries	1723	# this weird shuffling is so that direct followup queries
994	# get handled first	1724	# get handled first
995	my $queue = delete $ns->{query_queue};	1725	my $queue = delete $ns->{query_queue}
		1726	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		1727
997	(shift @$queue)->[1]->($msg);	1728	(shift @$queue)->[1]->($msg);
998		1729
999	push @{ $ns->{query_queue} }, @$queue;	1730	push @{ $ns->{query_queue} }, @$queue;
1000		1731
…		…
1017	=cut	1748	=cut
1018		1749
1019	sub cf::client::coro {	1750	sub cf::client::coro {
1020	my ($self, $cb) = @_;	1751	my ($self, $cb) = @_;
1021		1752
1022	my $coro; $coro = async {	1753	my $coro = &cf::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		1754
1029	$coro->on_destroy (sub {	1755	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	1756	delete $self->{_coro}{$coro+0};
1031	});	1757	});
1032		1758
…		…
1204		1930
1205	{	1931	{
1206	my $path = cf::localdir . "/database.pst";	1932	my $path = cf::localdir . "/database.pst";
1207		1933
1208	sub db_load() {	1934	sub db_load() {
1209	warn "loading database $path\n";#d# remove later
1210	$DB = stat $path ? Storable::retrieve $path : { };	1935	$DB = stat $path ? Storable::retrieve $path : { };
1211	}	1936	}
1212		1937
1213	my $pid;	1938	my $pid;
1214		1939
1215	sub db_save() {	1940	sub db_save() {
1216	warn "saving database $path\n";#d# remove later
1217	waitpid $pid, 0 if $pid;	1941	waitpid $pid, 0 if $pid;
1218	if (0 == ($pid = fork)) {	1942	if (0 == ($pid = fork)) {
1219	$DB->{_meta}{version} = 1;	1943	$DB->{_meta}{version} = 1;
1220	Storable::nstore $DB, "$path~";	1944	Storable::nstore $DB, "$path~";
1221	rename "$path~", $path;	1945	rename "$path~", $path;
…		…
1269	open my $fh, "<:utf8", cf::confdir . "/config"	1993	open my $fh, "<:utf8", cf::confdir . "/config"
1270	or return;	1994	or return;
1271		1995
1272	local $/;	1996	local $/;
1273	*CFG = YAML::Syck::Load <$fh>;	1997	*CFG = YAML::Syck::Load <$fh>;
		1998
		1999	$EMERGENCY_POSITION = $CFG{emergency_position} \|\| ["/world/world_105_115", 5, 37];
		2000
		2001	if (exists $CFG{mlockall}) {
		2002	eval {
		2003	$CFG{mlockall} ? &mlockall : &munlockall
		2004	and die "WARNING: m(un)lockall failed: $!\n";
		2005	};
		2006	warn $@ if $@;
		2007	}
1274	}	2008	}
1275		2009
1276	sub main {	2010	sub main {
		2011	# we must not ever block the main coroutine
		2012	local $Coro::idle = sub {
		2013	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2014	(Coro::unblock_sub {
		2015	Event::one_event;
		2016	})->();
		2017	};
		2018
1277	cfg_load;	2019	cfg_load;
1278	db_load;	2020	db_load;
1279	load_extensions;	2021	load_extensions;
1280	Event::loop;	2022	Event::loop;
1281	}	2023	}
1282		2024
1283	#############################################################################	2025	#############################################################################
1284	# initialisation	2026	# initialisation
1285		2027
1286	sub _perl_reload() {	2028	sub reload() {
1287	# can/must only be called in main	2029	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	2030	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	2031	warn "can only reload from main coroutine\n";
1290	return;	2032	return;
1291	}	2033	}
1292		2034
1293	warn "reloading...";	2035	warn "reloading...";
1294		2036
1295	local $FREEZE = 1;	2037	my $guard = freeze_mainloop;
1296	cf::emergency_save;	2038	cf::emergency_save;
1297		2039
1298	eval {	2040	eval {
1299	# if anything goes wrong in here, we should simply crash as we already saved	2041	# if anything goes wrong in here, we should simply crash as we already saved
1300		2042
…		…
1373	}	2115	}
1374		2116
1375	warn "reloaded successfully";	2117	warn "reloaded successfully";
1376	};	2118	};
1377		2119
1378	sub perl_reload() {	2120	#############################################################################
1379	_perl_reload;	2121
		2122	unless ($LINK_MAP) {
		2123	$LINK_MAP = cf::map::new;
		2124
		2125	$LINK_MAP->width (41);
		2126	$LINK_MAP->height (41);
		2127	$LINK_MAP->alloc;
		2128	$LINK_MAP->path ("{link}");
		2129	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2130	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2131
		2132	# dirty hack because... archetypes are not yet loaded
		2133	Event->timer (
		2134	after => 2,
		2135	cb => sub {
		2136	$_[0]->w->cancel;
		2137
		2138	# provide some exits "home"
		2139	my $exit = cf::object::new "exit";
		2140
		2141	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2142	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2143	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2144
		2145	$LINK_MAP->insert ($exit->clone, 19, 19);
		2146	$LINK_MAP->insert ($exit->clone, 19, 20);
		2147	$LINK_MAP->insert ($exit->clone, 19, 21);
		2148	$LINK_MAP->insert ($exit->clone, 20, 19);
		2149	$LINK_MAP->insert ($exit->clone, 20, 21);
		2150	$LINK_MAP->insert ($exit->clone, 21, 19);
		2151	$LINK_MAP->insert ($exit->clone, 21, 20);
		2152	$LINK_MAP->insert ($exit->clone, 21, 21);
		2153
		2154	$exit->destroy;
		2155	});
		2156
		2157	$LINK_MAP->{deny_save} = 1;
		2158	$LINK_MAP->{deny_reset} = 1;
		2159
		2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1380	}	2161	}
1381		2162
1382	register "<global>", __PACKAGE__;	2163	register "<global>", __PACKAGE__;
1383		2164
1384	register_command "perl-reload" => sub {	2165	register_command "reload" => sub {
1385	my ($who, $arg) = @_;	2166	my ($who, $arg) = @_;
1386		2167
1387	if ($who->flag (FLAG_WIZ)) {	2168	if ($who->flag (FLAG_WIZ)) {
		2169	$who->message ("start of reload.");
		2170	reload;
1388	$who->message ("reloading...");	2171	$who->message ("end of reload.");
1389	_perl_reload;
1390	}	2172	}
1391	};	2173	};
1392		2174
1393	unshift @INC, $LIBDIR;	2175	unshift @INC, $LIBDIR;
1394		2176
…		…
1396	reentrant => 0,	2178	reentrant => 0,
1397	prio => 0,	2179	prio => 0,
1398	at => $NEXT_TICK \|\| $TICK,	2180	at => $NEXT_TICK \|\| $TICK,
1399	data => WF_AUTOCANCEL,	2181	data => WF_AUTOCANCEL,
1400	cb => sub {	2182	cb => sub {
1401	unless ($FREEZE) {
1402	cf::server_tick; # one server iteration	2183	cf::server_tick; # one server iteration
1403	$RUNTIME += $TICK;	2184	$RUNTIME += $TICK;
1404	}
1405
1406	$NEXT_TICK += $TICK;	2185	$NEXT_TICK += $TICK;
1407		2186
1408	# if we are delayed by four ticks or more, skip them all	2187	# if we are delayed by four ticks or more, skip them all
1409	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1410		2189
…		…
1413	},	2192	},
1414	);	2193	);
1415		2194
1416	IO::AIO::max_poll_time $TICK * 0.2;	2195	IO::AIO::max_poll_time $TICK * 0.2;
1417		2196
		2197	Event->io (
1418	Event->io (fd => IO::AIO::poll_fileno,	2198	fd => IO::AIO::poll_fileno,
1419	poll => 'r',	2199	poll => 'r',
1420	prio => 5,	2200	prio => 5,
1421	data => WF_AUTOCANCEL,	2201	data => WF_AUTOCANCEL,
1422	cb => \&IO::AIO::poll_cb);	2202	cb => \&IO::AIO::poll_cb,
		2203	);
1423		2204
1424	# we must not ever block the main coroutine	2205	Event->timer (
1425	$Coro::idle = sub {	2206	data => WF_AUTOCANCEL,
1426	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2207	after => 0,
1427	warn "FATAL: Coro::idle was called, major BUG\n";	2208	interval => 10,
		2209	cb => sub {
1428	(Coro::unblock_sub {	2210	(Coro::unblock_sub {
1429	Event::one_event;	2211	write_runtime
		2212	or warn "ERROR: unable to write runtime file: $!";
1430	})->();	2213	})->();
1431	};	2214	},
		2215	);
		2216
		2217	END { cf::emergency_save }
1432		2218
1433	1	2219	1
1434		2220

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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 1.137 by root, Fri Jan 5 10:23:05 2007 UTC

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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 1.137 by root, Fri Jan 5 10:23:05 2007 UTC