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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.108 by root, Sun Dec 31 21:02:05 2006 UTC vs.
Revision 1.139 by root, Fri Jan 5 19:12:03 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;
…		…
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	26	use Event; $Event::Eval = 1; # no idea why this is required, but it is
27		27
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	29	$YAML::Syck::ImplicitUnicode = 1;
30		30
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		34
35	our %COMMAND = ();	35	our %COMMAND = ();
36	our %COMMAND_TIME = ();	36	our %COMMAND_TIME = ();
…		…
49	our $UPTIME; $UPTIME \|\|= time;	49	our $UPTIME; $UPTIME \|\|= time;
50	our $RUNTIME;	50	our $RUNTIME;
51		51
52	our %MAP; # all maps	52	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	53	our $LINK_MAP; # the special {link} map
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	54	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	55	our %EXT_CORO;
57		56
58	binmode STDOUT;	57	binmode STDOUT;
59	binmode STDERR;	58	binmode STDERR;
…		…
71	mkdir cf::localdir . "/" . cf::uniquedir;	70	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	71	mkdir $RANDOM_MAPS;
73		72
74	# a special map that is always available	73	# a special map that is always available
75	our $LINK_MAP;	74	our $LINK_MAP;
		75	our $EMERGENCY_POSITION;
76		76
77	#############################################################################	77	#############################################################################
78		78
79	=head2 GLOBAL VARIABLES	79	=head2 GLOBAL VARIABLES
80		80
…		…
179	sub to_json($) {	179	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]	181	JSON::Syck::Dump $_[0]
182	}	182	}
183		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	$guard
		232	}
		233
184	=item cf::sync_job { BLOCK }	234	=item cf::sync_job { BLOCK }
185		235
186	The design of crossfire+ requires that the main coro ($Coro::main) is	236	The design of crossfire+ requires that the main coro ($Coro::main) is
187	always able to handle events or runnable, as crossfire+ is only partly	237	always able to handle events or runnable, as crossfire+ is only partly
188	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	238	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
…		…
195	=cut	245	=cut
196		246
197	sub sync_job(&) {	247	sub sync_job(&) {
198	my ($job) = @_;	248	my ($job) = @_;
199		249
200	my $busy = 1;
201	my @res;
202
203	# TODO: use suspend/resume instead
204	local $FREEZE = 1;
205
206	my $coro = Coro::async {
207	@res = eval { $job->() };
208	warn $@ if $@;
209	undef $busy;
210	};
211
212	if ($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;
213	$coro->prio (Coro::PRIO_MAX);	265	})->prio (Coro::PRIO_MAX);
		266
214	while ($busy) {	267	while ($busy) {
215	Coro::cede_notself;	268	unless (Coro::cede) {
216	Event::one_event unless Coro::nready;	269	Coro::nready ? Event::one_event 0 : Event::one_event;
		270	Coro::cede_notself unless Coro::cede;
217	}	271	}
		272	}
		273
		274	wantarray ? @res : $res[0]
218	} else {	275	} else {
219	$coro->join;	276	# we are in another coroutine, how wonderful, everything just works
		277
		278	$job->()
220	}	279	}
221
222	wantarray ? @res : $res[0]
223	}	280	}
224		281
225	=item $coro = cf::coro { BLOCK }	282	=item $coro = cf::coro { BLOCK }
226		283
227	Creates and returns a new coro. This coro is automcatially being canceled	284	Creates (and readies) and returns a new coro. This coro is automcatially
228	when the extension calling this is being unloaded.	285	being canceled when the extension calling this is being unloaded.
229		286
230	=cut	287	=cut
231		288
232	sub coro(&) {	289	sub coro(&) {
233	my $cb = shift;	290	my $cb = shift;
234		291
235	my $coro; $coro = async {	292	my $coro = &Coro::async_pool ($cb);
236	eval {
237	$cb->();
238	};
239	warn $@ if $@;
240	};
241		293
242	$coro->on_destroy (sub {	294	$coro->on_destroy (sub {
243	delete $EXT_CORO{$coro+0};	295	delete $EXT_CORO{$coro+0};
244	});	296	});
245	$EXT_CORO{$coro+0} = $coro;	297	$EXT_CORO{$coro+0} = $coro;
…		…
251	my $runtime = cf::localdir . "/runtime";	303	my $runtime = cf::localdir . "/runtime";
252		304
253	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644	305	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
254	or return;	306	or return;
255		307
256	my $value = $cf::RUNTIME;	308	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
257	(aio_write $fh, 0, (length $value), $value, 0) <= 0	309	(aio_write $fh, 0, (length $value), $value, 0) <= 0
258	and return;	310	and return;
259		311
260	aio_fsync $fh	312	aio_fsync $fh
261	and return;	313	and return;
…		…
278	package cf::path;	330	package cf::path;
279		331
280	sub new {	332	sub new {
281	my ($class, $path, $base) = @_;	333	my ($class, $path, $base) = @_;
282		334
		335	$path = $path->as_string if ref $path;
		336
283	my $self = bless { }, $class;	337	my $self = bless { }, $class;
284		338
		339	# {... are special paths that are not touched
		340	# ?xxx/... are special absolute paths
		341	# ?random/... random maps
		342	# /! non-realised random map exit
		343	# /... normal maps
		344	# ~/... per-player maps without a specific player (DO NOT USE)
		345	# ~user/... per-player map of a specific user
		346
		347	if ($path =~ /^{/) {
		348	# fine as it is
285	if ($path =~ s{^\?random/}{}) {	349	} elsif ($path =~ s{^\?random/}{}) {
		350	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
286	$self->{random} = cf::from_json $path;	351	$self->{random} = cf::from_json $data;
287	} else {	352	} else {
288	if ($path =~ s{^~([^/]+)?}{}) {	353	if ($path =~ s{^~([^/]+)?}{}) {
289	$self->{user_rel} = 1;	354	$self->{user_rel} = 1;
290		355
291	if (defined $1) {	356	if (defined $1) {
…		…
324		389
325	# the displayed name, this is a one way mapping	390	# the displayed name, this is a one way mapping
326	sub visible_name {	391	sub visible_name {
327	my ($self) = @_;	392	my ($self) = @_;
328		393
329	$self->{random} ? "?random/$self->{random}{origin_map}+$self->{random}{origin_x}+$self->{random}{origin_y}/$self->{random}{dungeon_level}"	394	# if (my $rmp = $self->{random}) {
330	: $self->as_string	395	# # todo: be more intelligent about this
		396	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		397	# } else {
		398	$self->as_string
		399	# }
331	}	400	}
332		401
333	# escape the /'s in the path	402	# escape the /'s in the path
334	sub _escaped_path {	403	sub _escaped_path {
335	# ∕ is U+2215	404	# ∕ is U+2215
…		…
347	# the temporary/swap location	416	# the temporary/swap location
348	sub save_path {	417	sub save_path {
349	my ($self) = @_;	418	my ($self) = @_;
350		419
351	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path	420	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
352	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, Digest::MD5::md5_hex $self->{path}	421	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
353	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path	422	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
354	}	423	}
355		424
356	# the unique path, might be eq to save_path	425	# the unique path, might be eq to save_path
357	sub uniq_path {	426	sub uniq_path {
…		…
790	or return;	859	or return;
791		860
792	unless (aio_stat "$filename.pst") {	861	unless (aio_stat "$filename.pst") {
793	(aio_load "$filename.pst", $av) >= 0	862	(aio_load "$filename.pst", $av) >= 0
794	or return;	863	or return;
795	$av = eval { (Storable::thaw <$av>)->{objs} };	864	$av = eval { (Storable::thaw $av)->{objs} };
796	}	865	}
797		866
		867	warn sprintf "loading %s (%d)\n",
		868	$filename, length $data, scalar @{$av \|\| []};#d#
798	return ($data, $av);	869	return ($data, $av);
799	}	870	}
800		871
801	#############################################################################	872	#############################################################################
802	# command handling &c	873	# command handling &c
…		…
1024	$self->send ("ext " . to_json \%msg);	1095	$self->send ("ext " . to_json \%msg);
1025	}	1096	}
1026		1097
1027	=back	1098	=back
1028		1099
		1100
		1101	=head3 cf::map
		1102
		1103	=over 4
		1104
		1105	=cut
		1106
		1107	package cf::map;
		1108
		1109	use Fcntl;
		1110	use Coro::AIO;
		1111
		1112	our $MAX_RESET = 3600;
		1113	our $DEFAULT_RESET = 3000;
		1114
		1115	sub generate_random_map {
		1116	my ($path, $rmp) = @_;
		1117
		1118	# mit "rum" bekleckern, nicht
		1119	cf::map::_create_random_map
		1120	$path,
		1121	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1122	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1123	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1124	$rmp->{exit_on_final_map},
		1125	$rmp->{xsize}, $rmp->{ysize},
		1126	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1127	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1128	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1129	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1130	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1131	(cf::region::find $rmp->{region})
		1132	}
		1133
		1134	# and all this just because we cannot iterate over
		1135	# all maps in C++...
		1136	sub change_all_map_light {
		1137	my ($change) = @_;
		1138
		1139	$_->change_map_light ($change)
		1140	for grep $_->outdoor, values %cf::MAP;
		1141	}
		1142
		1143	sub try_load_header($) {
		1144	my ($path) = @_;
		1145
		1146	utf8::encode $path;
		1147	aio_open $path, O_RDONLY, 0
		1148	or return;
		1149
		1150	my $map = cf::map::new
		1151	or return;
		1152
		1153	# for better error messages only, will be overwritten
		1154	$map->path ($path);
		1155
		1156	$map->load_header ($path)
		1157	or return;
		1158
		1159	$map->{load_path} = $path;
		1160
		1161	$map
		1162	}
		1163
		1164	sub find;
		1165	sub find {
		1166	my ($path, $origin) = @_;
		1167
		1168	#warn "find<$path,$origin>\n";#d#
		1169
		1170	$path = new cf::path $path, $origin && $origin->path;
		1171	my $key = $path->as_string;
		1172
		1173	cf::lock_wait "map_find:$key";
		1174
		1175	$cf::MAP{$key} \|\| do {
		1176	my $guard = cf::lock_acquire "map_find:$key";
		1177
		1178	# do it the slow way
		1179	my $map = try_load_header $path->save_path;
		1180
		1181	Coro::cede;
		1182
		1183	if ($map) {
		1184	$map->last_access ((delete $map->{last_access})
		1185	\|\| $cf::RUNTIME); #d#
		1186	# safety
		1187	$map->{instantiate_time} = $cf::RUNTIME
		1188	if $map->{instantiate_time} > $cf::RUNTIME;
		1189	} else {
		1190	if (my $rmp = $path->random_map_params) {
		1191	$map = generate_random_map $key, $rmp;
		1192	} else {
		1193	$map = try_load_header $path->load_path;
		1194	}
		1195
		1196	$map or return;
		1197
		1198	$map->{load_original} = 1;
		1199	$map->{instantiate_time} = $cf::RUNTIME;
		1200	$map->last_access ($cf::RUNTIME);
		1201	$map->instantiate;
		1202
		1203	# per-player maps become, after loading, normal maps
		1204	$map->per_player (0) if $path->{user_rel};
		1205	}
		1206
		1207	$map->path ($key);
		1208	$map->{path} = $path;
		1209	$map->{last_save} = $cf::RUNTIME;
		1210
		1211	Coro::cede;
		1212
		1213	if ($map->should_reset) {
		1214	$map->reset;
		1215	undef $guard;
		1216	$map = find $path
		1217	or return;
		1218	}
		1219
		1220	$cf::MAP{$key} = $map
		1221	}
		1222	}
		1223
		1224	sub load {
		1225	my ($self) = @_;
		1226
		1227	my $path = $self->{path};
		1228	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1229
		1230	return if $self->in_memory != cf::MAP_SWAPPED;
		1231
		1232	$self->in_memory (cf::MAP_LOADING);
		1233
		1234	$self->alloc;
		1235	$self->load_objects ($self->{load_path}, 1)
		1236	or return;
		1237
		1238	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1239	if delete $self->{load_original};
		1240
		1241	if (my $uniq = $path->uniq_path) {
		1242	utf8::encode $uniq;
		1243	if (aio_open $uniq, O_RDONLY, 0) {
		1244	$self->clear_unique_items;
		1245	$self->load_objects ($uniq, 0);
		1246	}
		1247	}
		1248
		1249	Coro::cede;
		1250
		1251	# now do the right thing for maps
		1252	$self->link_multipart_objects;
		1253
		1254	if ($self->{path}->is_style_map) {
		1255	$self->{deny_save} = 1;
		1256	$self->{deny_reset} = 1;
		1257	} else {
		1258	$self->fix_auto_apply;
		1259	$self->decay_objects;
		1260	$self->update_buttons;
		1261	$self->set_darkness_map;
		1262	$self->difficulty ($self->estimate_difficulty)
		1263	unless $self->difficulty;
		1264	$self->activate;
		1265	}
		1266
		1267	Coro::cede;
		1268
		1269	$self->in_memory (cf::MAP_IN_MEMORY);
		1270	}
		1271
		1272	sub find_sync {
		1273	my ($path, $origin) = @_;
		1274
		1275	cf::sync_job {
		1276	my $map = cf::map::find $path, $origin;
		1277	$map
		1278	}
		1279	}
		1280
		1281	sub do_load_sync {
		1282	my ($map) = @_;
		1283
		1284	cf::sync_job { $map->load };
		1285	}
		1286
		1287	sub save {
		1288	my ($self) = @_;
		1289
		1290	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1291
		1292	$self->{last_save} = $cf::RUNTIME;
		1293
		1294	return unless $self->dirty;
		1295
		1296	my $save = $self->{path}->save_path; utf8::encode $save;
		1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1298
		1299	$self->{load_path} = $save;
		1300
		1301	return if $self->{deny_save};
		1302
		1303	local $self->{last_access} = $self->last_access;#d#
		1304
		1305	if ($uniq) {
		1306	$self->save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS);
		1307	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1308	} else {
		1309	$self->save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS \| cf::IO_UNIQUES);
		1310	}
		1311	}
		1312
		1313	sub swap_out {
		1314	my ($self) = @_;
		1315
		1316	# save first because save cedes
		1317	$self->save;
		1318
		1319	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1320
		1321	return if $self->players;
		1322	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1323	return if $self->{deny_save};
		1324
		1325	$self->clear;
		1326	$self->in_memory (cf::MAP_SWAPPED);
		1327	}
		1328
		1329	sub reset_at {
		1330	my ($self) = @_;
		1331
		1332	# TODO: safety, remove and allow resettable per-player maps
		1333	return 1e99 if $self->{path}{user_rel};
		1334	return 1e99 if $self->{deny_reset};
		1335
		1336	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1337	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
		1338
		1339	$time + $to
		1340	}
		1341
		1342	sub should_reset {
		1343	my ($self) = @_;
		1344
		1345	$self->reset_at <= $cf::RUNTIME
		1346	}
		1347
		1348	sub unlink_save {
		1349	my ($self) = @_;
		1350
		1351	utf8::encode (my $save = $self->{path}->save_path);
		1352	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1353	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1354	}
		1355
		1356	sub rename {
		1357	my ($self, $new_path) = @_;
		1358
		1359	$self->unlink_save;
		1360
		1361	delete $cf::MAP{$self->path};
		1362	$self->{path} = new cf::path $new_path;
		1363	$self->path ($self->{path}->as_string);
		1364	$cf::MAP{$self->path} = $self;
		1365
		1366	$self->save;
		1367	}
		1368
		1369	sub reset {
		1370	my ($self) = @_;
		1371
		1372	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1373
		1374	return if $self->players;
		1375	return if $self->{path}{user_rel};#d#
		1376
		1377	warn "resetting map ", $self->path;#d#
		1378
		1379	delete $cf::MAP{$self->path};
		1380
		1381	$_->clear_links_to ($self) for values %cf::MAP;
		1382
		1383	$self->unlink_save;
		1384	$self->destroy;
		1385	}
		1386
		1387	my $nuke_counter = "aaaa";
		1388
		1389	sub nuke {
		1390	my ($self) = @_;
		1391
		1392	$self->{deny_save} = 1;
		1393	$self->reset_timeout (1);
		1394	$self->rename ("{nuke}/" . ($nuke_counter++));
		1395	$self->reset; # polite request, might not happen
		1396	}
		1397
		1398	sub customise_for {
		1399	my ($map, $ob) = @_;
		1400
		1401	if ($map->per_player) {
		1402	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1403	}
		1404
		1405	$map
		1406	}
		1407
		1408	sub emergency_save {
		1409	my $freeze_guard = cf::freeze_mainloop;
		1410
		1411	warn "enter emergency map save\n";
		1412
		1413	cf::sync_job {
		1414	warn "begin emergency map save\n";
		1415	$_->save for values %cf::MAP;
		1416	};
		1417
		1418	warn "end emergency map save\n";
		1419	}
		1420
		1421	package cf;
		1422
		1423	=back
		1424
		1425
1029	=head3 cf::object::player	1426	=head3 cf::object::player
1030		1427
1031	=over 4	1428	=over 4
1032		1429
1033	=item $player_object->reply ($npc, $msg[, $flags])	1430	=item $player_object->reply ($npc, $msg[, $flags])
…		…
1068	(ref $cf::CFG{"may_$access"}	1465	(ref $cf::CFG{"may_$access"}
1069	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1466	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1070	: $cf::CFG{"may_$access"})	1467	: $cf::CFG{"may_$access"})
1071	}	1468	}
1072		1469
		1470	=item $player_object->enter_link
		1471
		1472	Freezes the player and moves him/her to a special map (C<{link}>).
		1473
		1474	The player should be reaosnably safe there for short amounts of time. You
		1475	I<MUST> call C<leave_link> as soon as possible, though.
		1476
		1477	=item $player_object->leave_link ($map, $x, $y)
		1478
		1479	Moves the player out of the specila link map onto the given map. If the
		1480	map is not valid (or omitted), the player will be moved back to the
		1481	location he/she was before the call to C<enter_link>, or, if that fails,
		1482	to the emergency map position.
		1483
		1484	Might block.
		1485
		1486	=cut
		1487
		1488	sub cf::object::player::enter_link {
		1489	my ($self) = @_;
		1490
		1491	$self->deactivate_recursive;
		1492
		1493	return if $self->map == $LINK_MAP;
		1494
		1495	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
		1496	if $self->map;
		1497
		1498	$self->enter_map ($LINK_MAP, 20, 20);
		1499	}
		1500
		1501	sub cf::object::player::leave_link {
		1502	my ($self, $map, $x, $y) = @_;
		1503
		1504	my $link_pos = delete $self->{_link_pos};
		1505
		1506	unless ($map) {
		1507	# restore original map position
		1508	($map, $x, $y) = @{ $link_pos \|\| [] };
		1509	$map = cf::map::find $map;
		1510
		1511	unless ($map) {
		1512	($map, $x, $y) = @$EMERGENCY_POSITION;
		1513	$map = cf::map::find $map
		1514	or die "FATAL: cannot load emergency map\n";
		1515	}
		1516	}
		1517
		1518	($x, $y) = (-1, -1)
		1519	unless (defined $x) && (defined $y);
		1520
		1521	# use -1 or undef as default coordinates, not 0, 0
		1522	($x, $y) = ($map->enter_x, $map->enter_y)
		1523	if $x <=0 && $y <= 0;
		1524
		1525	$map->load;
		1526
		1527	$self->activate_recursive;
		1528	$self->enter_map ($map, $x, $y);
		1529	}
		1530
		1531	cf::player->attach (
		1532	on_logout => sub {
		1533	my ($pl) = @_;
		1534
		1535	# abort map switching before logout
		1536	if ($pl->ob->{_link_pos}) {
		1537	cf::sync_job {
		1538	$pl->ob->leave_link
		1539	};
		1540	}
		1541	},
		1542	on_login => sub {
		1543	my ($pl) = @_;
		1544
		1545	# try to abort aborted map switching on player login :)
		1546	# should happen only on crashes
		1547	if ($pl->ob->{_link_pos}) {
		1548
		1549	$pl->ob->enter_link;
		1550	(Coro::async_pool {
		1551	# we need this sleep as the login has a concurrent enter_exit running
		1552	# and this sleep increases chances of the player not ending up in scorn
		1553	Coro::Timer::sleep 1;
		1554	$pl->ob->leave_link;
		1555	})->prio (2);
		1556	}
		1557	},
		1558	);
		1559
		1560	=item $player_object->goto ($path, $x, $y)
		1561
		1562	=cut
		1563
		1564	sub cf::object::player::goto {
		1565	my ($self, $path, $x, $y) = @_;
		1566
		1567	$self->enter_link;
		1568
		1569	(Coro::async_pool {
		1570	$path = new cf::path $path;
		1571
		1572	my $map = cf::map::find $path->as_string;
		1573	$map = $map->customise_for ($self) if $map;
		1574
		1575	# warn "entering ", $map->path, " at ($x, $y)\n"
		1576	# if $map;
		1577
		1578	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		1579
		1580	$self->leave_link ($map, $x, $y);
		1581	})->prio (1);
		1582	}
		1583
		1584	=item $player_object->enter_exit ($exit_object)
		1585
		1586	=cut
		1587
		1588	sub parse_random_map_params {
		1589	my ($spec) = @_;
		1590
		1591	my $rmp = { # defaults
		1592	xsize => 10,
		1593	ysize => 10,
		1594	};
		1595
		1596	for (split /\n/, $spec) {
		1597	my ($k, $v) = split /\s+/, $_, 2;
		1598
		1599	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1600	}
		1601
		1602	$rmp
		1603	}
		1604
		1605	sub prepare_random_map {
		1606	my ($exit) = @_;
		1607
		1608	# all this does is basically replace the /! path by
		1609	# a new random map path (?random/...) with a seed
		1610	# that depends on the exit object
		1611
		1612	my $rmp = parse_random_map_params $exit->msg;
		1613
		1614	if ($exit->map) {
		1615	$rmp->{region} = $exit->map->region_name;
		1616	$rmp->{origin_map} = $exit->map->path;
		1617	$rmp->{origin_x} = $exit->x;
		1618	$rmp->{origin_y} = $exit->y;
		1619	}
		1620
		1621	$rmp->{random_seed} \|\|= $exit->random_seed;
		1622
		1623	my $data = cf::to_json $rmp;
		1624	my $md5 = Digest::MD5::md5_hex $data;
		1625
		1626	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY \| O_CREAT, 0666) {
		1627	aio_write $fh, 0, (length $data), $data, 0;
		1628
		1629	$exit->slaying ("?random/$md5");
		1630	$exit->msg (undef);
		1631	}
		1632	}
		1633
		1634	sub cf::object::player::enter_exit {
		1635	my ($self, $exit) = @_;
		1636
		1637	return unless $self->type == cf::PLAYER;
		1638
		1639	$self->enter_link;
		1640
		1641	(Coro::async_pool {
		1642	$self->deactivate_recursive; # just to be sure
		1643	unless (eval {
		1644	prepare_random_map $exit
		1645	if $exit->slaying eq "/!";
		1646
		1647	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1648	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1649
		1650	1;
		1651	}) {
		1652	$self->message ("Something went wrong deep within the crossfire server. "
		1653	. "I'll try to bring you back to the map you were before. "
		1654	. "Please report this to the dungeon master",
		1655	cf::NDI_UNIQUE \| cf::NDI_RED);
		1656
		1657	warn "ERROR in enter_exit: $@";
		1658	$self->leave_link;
		1659	}
		1660	})->prio (1);
		1661	}
		1662
1073	=head3 cf::client	1663	=head3 cf::client
1074		1664
1075	=over 4	1665	=over 4
1076		1666
1077	=item $client->send_drawinfo ($text, $flags)	1667	=item $client->send_drawinfo ($text, $flags)
…		…
1120	on_reply => sub {	1710	on_reply => sub {
1121	my ($ns, $msg) = @_;	1711	my ($ns, $msg) = @_;
1122		1712
1123	# this weird shuffling is so that direct followup queries	1713	# this weird shuffling is so that direct followup queries
1124	# get handled first	1714	# get handled first
1125	my $queue = delete $ns->{query_queue};	1715	my $queue = delete $ns->{query_queue}
		1716	or return; # be conservative, not sure how that can happen, but we saw a crash here
1126		1717
1127	(shift @$queue)->[1]->($msg);	1718	(shift @$queue)->[1]->($msg);
1128		1719
1129	push @{ $ns->{query_queue} }, @$queue;	1720	push @{ $ns->{query_queue} }, @$queue;
1130		1721
…		…
1147	=cut	1738	=cut
1148		1739
1149	sub cf::client::coro {	1740	sub cf::client::coro {
1150	my ($self, $cb) = @_;	1741	my ($self, $cb) = @_;
1151		1742
1152	my $coro; $coro = async {	1743	my $coro = &Coro::async_pool ($cb);
1153	eval {
1154	$cb->();
1155	};
1156	warn $@ if $@;
1157	};
1158		1744
1159	$coro->on_destroy (sub {	1745	$coro->on_destroy (sub {
1160	delete $self->{_coro}{$coro+0};	1746	delete $self->{_coro}{$coro+0};
1161	});	1747	});
1162		1748
…		…
1334		1920
1335	{	1921	{
1336	my $path = cf::localdir . "/database.pst";	1922	my $path = cf::localdir . "/database.pst";
1337		1923
1338	sub db_load() {	1924	sub db_load() {
1339	warn "loading database $path\n";#d# remove later
1340	$DB = stat $path ? Storable::retrieve $path : { };	1925	$DB = stat $path ? Storable::retrieve $path : { };
1341	}	1926	}
1342		1927
1343	my $pid;	1928	my $pid;
1344		1929
1345	sub db_save() {	1930	sub db_save() {
1346	warn "saving database $path\n";#d# remove later
1347	waitpid $pid, 0 if $pid;	1931	waitpid $pid, 0 if $pid;
1348	if (0 == ($pid = fork)) {	1932	if (0 == ($pid = fork)) {
1349	$DB->{_meta}{version} = 1;	1933	$DB->{_meta}{version} = 1;
1350	Storable::nstore $DB, "$path~";	1934	Storable::nstore $DB, "$path~";
1351	rename "$path~", $path;	1935	rename "$path~", $path;
…		…
1399	open my $fh, "<:utf8", cf::confdir . "/config"	1983	open my $fh, "<:utf8", cf::confdir . "/config"
1400	or return;	1984	or return;
1401		1985
1402	local $/;	1986	local $/;
1403	*CFG = YAML::Syck::Load <$fh>;	1987	*CFG = YAML::Syck::Load <$fh>;
		1988
		1989	$EMERGENCY_POSITION = $CFG{emergency_position} \|\| ["/world/world_105_115", 5, 37];
		1990
		1991	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		1992	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		1993
		1994	if (exists $CFG{mlockall}) {
		1995	eval {
		1996	$CFG{mlockall} ? &mlockall : &munlockall
		1997	and die "WARNING: m(un)lockall failed: $!\n";
		1998	};
		1999	warn $@ if $@;
		2000	}
1404	}	2001	}
1405		2002
1406	sub main {	2003	sub main {
1407	# we must not ever block the main coroutine	2004	# we must not ever block the main coroutine
1408	local $Coro::idle = sub {	2005	local $Coro::idle = sub {
1409	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2006	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1410	(Coro::unblock_sub {	2007	Coro::async_pool { Event::one_event };
1411	Event::one_event;
1412	})->();
1413	};	2008	};
1414		2009
1415	cfg_load;	2010	cfg_load;
1416	db_load;	2011	db_load;
1417	load_extensions;	2012	load_extensions;
…		…
1419	}	2014	}
1420		2015
1421	#############################################################################	2016	#############################################################################
1422	# initialisation	2017	# initialisation
1423		2018
1424	sub perl_reload() {	2019	sub reload() {
1425	# can/must only be called in main	2020	# can/must only be called in main
1426	if ($Coro::current != $Coro::main) {	2021	if ($Coro::current != $Coro::main) {
1427	warn "can only reload from main coroutine\n";	2022	warn "can only reload from main coroutine\n";
1428	return;	2023	return;
1429	}	2024	}
1430		2025
1431	warn "reloading...";	2026	warn "reloading...";
1432		2027
1433	local $FREEZE = 1;	2028	my $guard = freeze_mainloop;
1434	cf::emergency_save;	2029	cf::emergency_save;
1435		2030
1436	eval {	2031	eval {
1437	# if anything goes wrong in here, we should simply crash as we already saved	2032	# if anything goes wrong in here, we should simply crash as we already saved
1438		2033
…		…
1522	$LINK_MAP->height (41);	2117	$LINK_MAP->height (41);
1523	$LINK_MAP->alloc;	2118	$LINK_MAP->alloc;
1524	$LINK_MAP->path ("{link}");	2119	$LINK_MAP->path ("{link}");
1525	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";	2120	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1526	$LINK_MAP->in_memory (MAP_IN_MEMORY);	2121	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2122
		2123	# dirty hack because... archetypes are not yet loaded
		2124	Event->timer (
		2125	after => 2,
		2126	cb => sub {
		2127	$_[0]->w->cancel;
		2128
		2129	# provide some exits "home"
		2130	my $exit = cf::object::new "exit";
		2131
		2132	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2133	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2134	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2135
		2136	$LINK_MAP->insert ($exit->clone, 19, 19);
		2137	$LINK_MAP->insert ($exit->clone, 19, 20);
		2138	$LINK_MAP->insert ($exit->clone, 19, 21);
		2139	$LINK_MAP->insert ($exit->clone, 20, 19);
		2140	$LINK_MAP->insert ($exit->clone, 20, 21);
		2141	$LINK_MAP->insert ($exit->clone, 21, 19);
		2142	$LINK_MAP->insert ($exit->clone, 21, 20);
		2143	$LINK_MAP->insert ($exit->clone, 21, 21);
		2144
		2145	$exit->destroy;
		2146	});
		2147
		2148	$LINK_MAP->{deny_save} = 1;
		2149	$LINK_MAP->{deny_reset} = 1;
		2150
		2151	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1527	}	2152	}
1528		2153
1529	register "<global>", __PACKAGE__;	2154	register "<global>", __PACKAGE__;
1530		2155
1531	register_command "perl-reload" => sub {	2156	register_command "reload" => sub {
1532	my ($who, $arg) = @_;	2157	my ($who, $arg) = @_;
1533		2158
1534	if ($who->flag (FLAG_WIZ)) {	2159	if ($who->flag (FLAG_WIZ)) {
1535	$who->message ("start of reload.");	2160	$who->message ("start of reload.");
1536	perl_reload;	2161	reload;
1537	$who->message ("end of reload.");	2162	$who->message ("end of reload.");
1538	}	2163	}
1539	};	2164	};
1540		2165
1541	unshift @INC, $LIBDIR;	2166	unshift @INC, $LIBDIR;
…		…
1544	reentrant => 0,	2169	reentrant => 0,
1545	prio => 0,	2170	prio => 0,
1546	at => $NEXT_TICK \|\| $TICK,	2171	at => $NEXT_TICK \|\| $TICK,
1547	data => WF_AUTOCANCEL,	2172	data => WF_AUTOCANCEL,
1548	cb => sub {	2173	cb => sub {
1549	unless ($FREEZE) {
1550	cf::server_tick; # one server iteration	2174	cf::server_tick; # one server iteration
1551	$RUNTIME += $TICK;	2175	$RUNTIME += $TICK;
1552	}
1553
1554	$NEXT_TICK += $TICK;	2176	$NEXT_TICK += $TICK;
1555		2177
1556	# if we are delayed by four ticks or more, skip them all	2178	# if we are delayed by four ticks or more, skip them all
1557	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2179	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1558		2180
…		…
1581	or warn "ERROR: unable to write runtime file: $!";	2203	or warn "ERROR: unable to write runtime file: $!";
1582	})->();	2204	})->();
1583	},	2205	},
1584	);	2206	);
1585		2207
		2208	END { cf::emergency_save }
		2209
1586	1	2210	1
1587		2211

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.108 by root, Sun Dec 31 21:02:05 2006 UTC vs. Revision 1.139 by root, Fri Jan 5 19:12:03 2007 UTC

Diff Legend

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.108 by root, Sun Dec 31 21:02:05 2006 UTC vs.
Revision 1.139 by root, Fri Jan 5 19:12:03 2007 UTC