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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.115 by root, Mon Jan 1 16:50:10 2007 UTC vs.
Revision 1.267 by root, Sat May 19 00:08:11 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
57		98
58	binmode STDOUT;	99	binmode STDOUT;
59	binmode STDERR;	100	binmode STDERR;
60		101
61	# read virtual server time, if available	102	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
66	}	107	}
67		108
68	mkdir cf::localdir;	109	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		111
74	# a special map that is always available	112	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		113
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	114	sub cf::map::normalise;
78		115
79	#############################################################################	116	#############################################################################
80		117
81	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
82		119
…		…
89	=item $cf::RUNTIME	126	=item $cf::RUNTIME
90		127
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	129	every server tick.
93		130
94	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		134
96	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
98		139
99	=item $cf::NOW	140	=item $cf::NOW
100		141
101	The time of the last (current) server tick.	142	The time of the last (current) server tick.
102		143
103	=item $cf::TICK	144	=item $cf::TICK
104		145
105	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
106		157
107	=item %cf::CFG	158	=item %cf::CFG
108		159
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		168
112	=back	169	=back
113		170
114	=cut	171	=cut
115		172
116	BEGIN {	173	BEGIN {
117	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	175	my $msg = join "", @_;
119	utf8::encode $msg;
120		176
121	$msg .= "\n"	177	$msg .= "\n"
122	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
123		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
125	};	184	};
126	}	185	}
127		186
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		206
148	$Event::DIED = sub {	207	$Event::DIED = sub {
149	warn "error in event callback: @_";	208	warn "error in event callback: @_";
150	};	209	};
151		210
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
157		212
158	=over 4	213	=over 4
159		214
160	=cut	215	=item dumpval $ref
161		216
		217	=cut
		218
		219	sub dumpval {
		220	eval {
		221	local $SIG{__DIE__};
		222	my $d;
		223	if (1) {
		224	$d = new Data::Dumper([$_[0]], ["*var"]);
		225	$d->Terse(1);
		226	$d->Indent(2);
		227	$d->Quotekeys(0);
		228	$d->Useqq(1);
		229	#$d->Bless(...);
		230	$d->Seen($_[1]) if @_ > 1;
		231	$d = $d->Dump();
		232	}
		233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		234	$d
		235	} || "[unable to dump $_[0]: '$@']";
		236	}
		237
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		239
164	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
165		241
166	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
167		243
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
176		245
177	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
178		247
179	=cut	248	=item cf::lock_wait $string
180		249
181	sub to_json($) {	250	Wait until the given lock is available. See cf::lock_acquire.
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	251
183	JSON::Syck::Dump $_[0]	252	=item my $lock = cf::lock_acquire $string
		253
		254	Wait until the given lock is available and then acquires it and returns
		255	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		256	for example when the coroutine gets canceled), the lock is automatically
		257	returned.
		258
		259	Lock names should begin with a unique identifier (for example, cf::map::find
		260	uses map_find and cf::map::load uses map_load).
		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
		266	=cut
		267
		268	our %LOCK;
		269
		270	sub lock_wait($) {
		271	my ($key) = @_;
		272
		273	# wait for lock, if any
		274	while ($LOCK{$key}) {
		275	push @{ $LOCK{$key} }, $Coro::current;
		276	Coro::schedule;
		277	}
184	}	278	}
		279
		280	sub lock_acquire($) {
		281	my ($key) = @_;
		282
		283	# wait, to be sure we are not locked
		284	lock_wait $key;
		285
		286	$LOCK{$key} = [];
		287
		288	Coro::guard {
		289	# wake up all waiters, to be on the safe side
		290	$_->ready for @{ delete $LOCK{$key} };
		291	}
		292	}
		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
		300	sub freeze_mainloop {
		301	return unless $TICK_WATCHER->is_active;
		302
		303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
		306	$TICK_WATCHER->stop;
		307	$guard
		308	}
		309
		310	=item cf::async { BLOCK }
		311
		312	Currently the same as Coro::async_pool, meaning you cannot use
		313	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		314	thing you are allowed to do is call C<prio> on it.
		315
		316	=cut
		317
		318	BEGIN { *async = \&Coro::async_pool }
185		319
186	=item cf::sync_job { BLOCK }	320	=item cf::sync_job { BLOCK }
187		321
188	The design of crossfire+ requires that the main coro ($Coro::main) is	322	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	323	always able to handle events or runnable, as crossfire+ is only partly
…		…
198		332
199	sub sync_job(&) {	333	sub sync_job(&) {
200	my ($job) = @_;	334	my ($job) = @_;
201		335
202	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
203	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
205		341
206	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	343	# (but this is cancel-safe)
208	local $FREEZE = 1;	344	my $freeze_guard = freeze_mainloop;
209		345
210	my $busy = 1;	346	my $busy = 1;
211	my @res;	347	my @res;
212		348
213	(Coro::async {	349	(async {
214	@res = eval { $job->() };	350	@res = eval { $job->() };
215	warn $@ if $@;	351	warn $@ if $@;
216	undef $busy;	352	undef $busy;
217	})->prio (Coro::PRIO_MAX);	353	})->prio (Coro::PRIO_MAX);
218		354
219	while ($busy) {	355	while ($busy) {
220	Coro::cede_notself;	356	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	357	}
		358
		359	$time = Event::time - $time;
		360
		361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		363
		364	$tick_start += $time; # do not account sync jobs to server load
223		365
224	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
225	} else {	367	} else {
226	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
227		369
228	$job->()	370	$job->()
229	}	371	}
230	}	372	}
231		373
232	=item $coro = cf::coro { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
233		375
234	Creates and returns a new coro. This coro is automcatially being canceled	376	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	377	extension calling this is being unloaded.
236		378
237	=cut	379	=cut
238		380
239	sub coro(&) {	381	sub async_ext(&) {
240	my $cb = shift;	382	my $cb = shift;
241		383
242	my $coro; $coro = async {	384	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		385
249	$coro->on_destroy (sub {	386	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	387	delete $EXT_CORO{$coro+0};
251	});	388	});
252	$EXT_CORO{$coro+0} = $coro;	389	$EXT_CORO{$coro+0} = $coro;
253		390
254	$coro	391	$coro
255	}	392	}
256		393
257	sub write_runtime {	394	sub write_runtime {
258	my $runtime = cf::localdir . "/runtime";	395	my $runtime = "$LOCALDIR/runtime";
		396
		397	# first touch the runtime file to show we are still running:
		398	# the fsync below can take a very very long time.
		399
		400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		401	utime undef, undef, $fh;
		402	}
		403
		404	my $guard = cf::lock_acquire "write_runtime";
259		405
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	407	or return;
262		408
		409	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	410	# 10 is the runtime save interval, for a monotonic clock
		411	# 60 allows for the watchdog to kill the server.
		412
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	414	and return;
266		415
		416	# always fsync - this file is important
267	aio_fsync $fh	417	aio_fsync $fh
268	and return;	418	and return;
269		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
270	close $fh	423	close $fh
271	or return;	424	or return;
272		425
273	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
274	and return;	427	and return;
275		428
		429	warn "runtime file written.\n";#d#
		430
276	1	431	1
277	}	432	}
278		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
279	=back	445	=back
280		446
281	=cut	447	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	# {... are special paths that are not touched
295	# ?xxx/... are special absolute paths
296	# ?random/... random maps
297	# /! non-realised random map exit
298	# /... normal maps
299	# ~/... per-player maps without a specific player (DO NOT USE)
300	# ~user/... per-player map of a specific user
301
302	if ($path =~ /^{/) {
303	# fine as it is
304	} elsif ($path =~ s{^\?random/}{}) {
305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306	$self->{random} = cf::from_json $data;
307	} else {
308	if ($path =~ s{^~([^/]+)?}{}) {
309	$self->{user_rel} = 1;
310
311	if (defined $1) {
312	$self->{user} = $1;
313	} elsif ($base =~ m{^~([^/]+)/}) {
314	$self->{user} = $1;
315	} else {
316	warn "cannot resolve user-relative path without user <$path,$base>\n";
317	}
318	} elsif ($path =~ /^\//) {
319	# already absolute
320	} else {
321	$base =~ s{[^/]+/?$}{};
322	return $class->new ("$base/$path");
323	}
324
325	for ($path) {
326	redo if s{/\.?/}{/};
327	redo if s{/[^/]+/\.\./}{/};
328	}
329	}
330
331	$self->{path} = $path;
332
333	$self
334	}
335
336	# the name / primary key / in-game path
337	sub as_string {
338	my ($self) = @_;
339
340	$self->{user_rel} ? "~$self->{user}$self->{path}"
341	: $self->{random} ? "?random/$self->{path}"
342	: $self->{path}
343	}
344
345	# the displayed name, this is a one way mapping
346	sub visible_name {
347	my ($self) = @_;
348
349	# if (my $rmp = $self->{random}) {
350	# # todo: be more intelligent about this
351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352	# } else {
353	$self->as_string
354	# }
355	}
356
357	# escape the /'s in the path
358	sub _escaped_path {
359	# ∕ is U+2215
360	(my $path = $_[0]{path}) =~ s/\//∕/g;
361	$path
362	}
363
364	# the original (read-only) location
365	sub load_path {
366	my ($self) = @_;
367
368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369	}
370
371	# the temporary/swap location
372	sub save_path {
373	my ($self) = @_;
374
375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378	}
379
380	# the unique path, might be eq to save_path
381	sub uniq_path {
382	my ($self) = @_;
383
384	$self->{user_rel} || $self->{random}
385	? undef
386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387	}
388
389	# return random map parameters, or undef
390	sub random_map_params {
391	my ($self) = @_;
392
393	$self->{random}
394	}
395
396	# this is somewhat ugly, but style maps do need special treatment
397	sub is_style_map {
398	$_[0]{path} =~ m{^/styles/}
399	}
400
401	package cf;
402		448
403	#############################################################################	449	#############################################################################
404		450
405	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
406		452
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	579	our @CB_MAP = ();
534		580
535	my %attachment;	581	my %attachment;
536		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
537	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
539		591
540	use sort 'stable';	592	use sort 'stable';
541		593
…		…
575	$registry = $CB_TYPE[$object_type] ||= [];	627	$registry = $CB_TYPE[$object_type] ||= [];
576		628
577	} elsif ($type eq "subtype") {	629	} elsif ($type eq "subtype") {
578	defined $object_type or Carp::croak "subtype specified without type";	630	defined $object_type or Carp::croak "subtype specified without type";
579	my $object_subtype = shift @arg;	631	my $object_subtype = shift @arg;
580	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
581		633
582	} elsif ($type eq "package") {	634	} elsif ($type eq "package") {
583	my $pkg = shift @arg;	635	my $pkg = shift @arg;
584		636
585	while (my ($name, $id) = each %cb_id) {	637	while (my ($name, $id) = each %cb_id) {
…		…
626	if (ref $_[0]) {	678	if (ref $_[0]) {
627	_object_attach @_;	679	_object_attach @_;
628	} else {	680	} else {
629	_attach shift->_attach_registry, @_;	681	_attach shift->_attach_registry, @_;
630	}	682	}
		683	_recalc_want;
631	};	684	};
632		685
633	# all those should be optimised	686	# all those should be optimised
634	sub cf::attachable::detach {	687	sub cf::attachable::detach {
635	my ($obj, $name) = @_;	688	my ($obj, $name) = @_;
…		…
638	delete $obj->{_attachment}{$name};	691	delete $obj->{_attachment}{$name};
639	reattach ($obj);	692	reattach ($obj);
640	} else {	693	} else {
641	Carp::croak "cannot, currently, detach class attachments";	694	Carp::croak "cannot, currently, detach class attachments";
642	}	695	}
		696	_recalc_want;
643	};	697	};
644		698
645	sub cf::attachable::attached {	699	sub cf::attachable::attached {
646	my ($obj, $name) = @_;	700	my ($obj, $name) = @_;
647		701
…		…
712	# object support	766	# object support
713		767
714	sub reattach {	768	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	769	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	770	my ($obj) = @_;
		771
		772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		773
718	my $registry = $obj->registry;	774	my $registry = $obj->registry;
719		775
720	@$registry = ();	776	@$registry = ();
721		777
…		…
768	$filename, length $$rdata, scalar @$objs;	824	$filename, length $$rdata, scalar @$objs;
769		825
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	827	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh;	829	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	830	close $fh;
775		831
776	if (@$objs) {	832	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	833	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	834	chmod SAVE_MODE, $fh;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	835	my $data = Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	836	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh;	837	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	838	close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	839	aio_rename "$filename.pst~", "$filename.pst";
784	}	840	}
785	} else {	841	} else {
786	aio_unlink "$filename.pst";	842	aio_unlink "$filename.pst";
…		…
817	(aio_load "$filename.pst", $av) >= 0	873	(aio_load "$filename.pst", $av) >= 0
818	or return;	874	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	875	$av = eval { (Storable::thaw $av)->{objs} };
820	}	876	}
821		877
		878	warn sprintf "loading %s (%d)\n",
		879	$filename, length $data, scalar @{$av || []};#d#
822	return ($data, $av);	880	return ($data, $av);
823	}	881	}
824		882
825	#############################################################################	883	#############################################################################
826	# command handling &c	884	# command handling &c
…		…
851	=cut	909	=cut
852		910
853	sub register_extcmd {	911	sub register_extcmd {
854	my ($name, $cb) = @_;	912	my ($name, $cb) = @_;
855		913
856	my $caller = caller;
857	#warn "registering extcmd '$name' to '$caller'";
858
859	$EXTCMD{$name} = [$cb, $caller];	914	$EXTCMD{$name} = $cb;
860	}	915	}
861		916
862	cf::player->attach (	917	cf::player->attach (
863	on_command => sub {	918	on_command => sub {
864	my ($pl, $name, $params) = @_;	919	my ($pl, $name, $params) = @_;
…		…
877		932
878	my $msg = eval { from_json $buf };	933	my $msg = eval { from_json $buf };
879		934
880	if (ref $msg) {	935	if (ref $msg) {
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
882	if (my %reply = $cb->[0]->($pl, $msg)) {	937	if (my %reply = $cb->($pl, $msg)) {
883	$pl->ext_reply ($msg->{msgid}, %reply);	938	$pl->ext_reply ($msg->{msgid}, %reply);
884	}	939	}
885	}	940	}
886	} else {	941	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
889		944
890	cf::override;	945	cf::override;
891	},	946	},
892	);	947	);
893		948
894	sub register {
895	my ($base, $pkg) = @_;
896
897	#TODO
898	}
899
900	sub load_extension {	949	sub load_extension {
901	my ($path) = @_;	950	my ($path) = @_;
902		951
903	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
904	my $base = $1;	953	my $base = $1;
905	my $pkg = $1;	954	my $pkg = $1;
906	$pkg =~ s/[^[:word:]]/_/g;	955	$pkg =~ s/[^[:word:]]/_/g;
907	$pkg = "ext::$pkg";	956	$pkg = "ext::$pkg";
908		957
909	warn "loading '$path' into '$pkg'\n";	958	warn "... loading '$path' into '$pkg'\n";
910		959
911	open my $fh, "<:utf8", $path	960	open my $fh, "<:utf8", $path
912	or die "$path: $!";	961	or die "$path: $!";
913		962
914	my $source =	963	my $source =
915	"package $pkg; use strict; use utf8;\n"	964	"package $pkg; use strict; use utf8;\n"
916	. "#line 1 \"$path\"\n{\n"	965	. "#line 1 \"$path\"\n{\n"
917	. (do { local $/; <$fh> })	966	. (do { local $/; <$fh> })
918	. "\n};\n1";	967	. "\n};\n1";
919		968
920	eval $source	969	unless (eval $source) {
921	or die $@ ? "$path: $@\n"	970	my $msg = $@ ? "$path: $@\n"
922	: "extension disabled.\n";	971	: "extension disabled.\n";
923		972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
924	push @exts, $pkg;	973	warn $@;
925	$ext_pkg{$base} = $pkg;	974	warn "mandatory extension failed to load, exiting.\n";
926		975	exit 1;
927	# no strict 'refs';	976	}
928	# @{"$pkg\::ISA"} = ext::;	977	die $@;
929
930	register $base, $pkg;
931	}
932
933	sub unload_extension {
934	my ($pkg) = @_;
935
936	warn "removing extension $pkg\n";
937
938	# remove hooks
939	#TODO
940	# for my $idx (0 .. $#PLUGIN_EVENT) {
941	# delete $hook[$idx]{$pkg};
942	# }	978	}
943		979
944	# remove commands	980	push @EXTS, $pkg;
945	for my $name (keys %COMMAND) {
946	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
947
948	if (@cb) {
949	$COMMAND{$name} = \@cb;
950	} else {
951	delete $COMMAND{$name};
952	}
953	}
954
955	# remove extcmds
956	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
957	delete $EXTCMD{$name};
958	}
959
960	if (my $cb = $pkg->can ("unload")) {
961	eval {
962	$cb->($pkg);
963	1
964	} or warn "$pkg unloaded, but with errors: $@";
965	}
966
967	Symbol::delete_package $pkg;
968	}	981	}
969		982
970	sub load_extensions {	983	sub load_extensions {
971	for my $ext (<$LIBDIR/*.ext>) {	984	for my $ext (<$LIBDIR/*.ext>) {
972	next unless -r $ext;	985	next unless -r $ext;
…		…
976	} or warn "$ext not loaded: $@";	989	} or warn "$ext not loaded: $@";
977	}	990	}
978	}	991	}
979		992
980	#############################################################################	993	#############################################################################
981	# load/save/clean perl data associated with a map
982
983	*cf::mapsupport::on_clean = sub {
984	my ($map) = @_;
985
986	my $path = $map->tmpname;
987	defined $path or return;
988
989	unlink "$path.pst";
990	};
991
992	cf::map->attach (prio => -10000, package => cf::mapsupport::);
993
994	#############################################################################
995	# load/save perl data associated with player->ob objects
996
997	sub all_objects(@) {
998	@_, map all_objects ($_->inv), @_
999	}
1000
1001	# TODO: compatibility cruft, remove when no longer needed
1002	cf::player->attach (
1003	on_load => sub {
1004	my ($pl, $path) = @_;
1005
1006	for my $o (all_objects $pl->ob) {
1007	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1008	$o->set_ob_key_value ("_perl_data");
1009
1010	%$o = %{ Storable::thaw pack "H*", $value };
1011	}
1012	}
1013	},
1014	);
1015
1016	#############################################################################
1017		994
1018	=head2 CORE EXTENSIONS	995	=head2 CORE EXTENSIONS
1019		996
1020	Functions and methods that extend core crossfire objects.	997	Functions and methods that extend core crossfire objects.
1021		998
		999	=cut
		1000
		1001	package cf::player;
		1002
		1003	use Coro::AIO;
		1004
1022	=head3 cf::player	1005	=head3 cf::player
1023		1006
1024	=over 4	1007	=over 4
1025		1008
1026	=item cf::player::exists $login	1009	=item cf::player::find $login
1027		1010
1028	Returns true when the given account exists.	1011	Returns the given player object, loading it if necessary (might block).
1029		1012
1030	=cut	1013	=cut
1031		1014
1032	sub cf::player::exists($) {	1015	sub playerdir($) {
1033	cf::player::find $_[0]	1016	"$PLAYERDIR/"
1034	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1017	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1035	}	1018	}
1036		1019
		1020	sub path($) {
		1021	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1022
		1023	(playerdir $login) . "/playerdata"
		1024	}
		1025
		1026	sub find_active($) {
		1027	$cf::PLAYER{$_[0]}
		1028	and $cf::PLAYER{$_[0]}->active
		1029	and $cf::PLAYER{$_[0]}
		1030	}
		1031
		1032	sub exists($) {
		1033	my ($login) = @_;
		1034
		1035	$cf::PLAYER{$login}
		1036	or cf::sync_job { !aio_stat path $login }
		1037	}
		1038
		1039	sub find($) {
		1040	return $cf::PLAYER{$_[0]} || do {
		1041	my $login = $_[0];
		1042
		1043	my $guard = cf::lock_acquire "user_find:$login";
		1044
		1045	$cf::PLAYER{$_[0]} || do {
		1046	# rename old playerfiles to new ones
		1047	#TODO: remove when no longer required
		1048	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1049	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1050	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1051	aio_unlink +(playerdir $login) . "/$login.pl";
		1052
		1053	my $pl = load_pl path $login
		1054	or return;
		1055	$cf::PLAYER{$login} = $pl
		1056	}
		1057	}
		1058	}
		1059
		1060	sub save($) {
		1061	my ($pl) = @_;
		1062
		1063	return if $pl->{deny_save};
		1064
		1065	my $path = path $pl;
		1066	my $guard = cf::lock_acquire "user_save:$path";
		1067
		1068	return if $pl->{deny_save};
		1069
		1070	aio_mkdir playerdir $pl, 0770;
		1071	$pl->{last_save} = $cf::RUNTIME;
		1072
		1073	$pl->save_pl ($path);
		1074	Coro::cede;
		1075	}
		1076
		1077	sub new($) {
		1078	my ($login) = @_;
		1079
		1080	my $self = create;
		1081
		1082	$self->ob->name ($login);
		1083	$self->{deny_save} = 1;
		1084
		1085	$cf::PLAYER{$login} = $self;
		1086
		1087	$self
		1088	}
		1089
		1090	=item $pl->quit_character
		1091
		1092	Nukes the player without looking back. If logged in, the connection will
		1093	be destroyed. May block for a long time.
		1094
		1095	=cut
		1096
		1097	sub quit_character {
		1098	my ($pl) = @_;
		1099
		1100	my $name = $pl->ob->name;
		1101
		1102	$pl->{deny_save} = 1;
		1103	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1104
		1105	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1106	$pl->deactivate;
		1107	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1108	$pl->ns->destroy if $pl->ns;
		1109
		1110	my $path = playerdir $pl;
		1111	my $temp = "$path~$cf::RUNTIME~deleting~";
		1112	aio_rename $path, $temp;
		1113	delete $cf::PLAYER{$pl->ob->name};
		1114	$pl->destroy;
		1115
		1116	my $prefix = qr<^~\Q$name\E/>;
		1117
		1118	# nuke player maps
		1119	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1120
		1121	IO::AIO::aio_rmtree $temp;
		1122	}
		1123
		1124	=item $pl->kick
		1125
		1126	Kicks a player out of the game. This destroys the connection.
		1127
		1128	=cut
		1129
		1130	sub kick {
		1131	my ($pl, $kicker) = @_;
		1132
		1133	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1134	$pl->killer ("kicked");
		1135	$pl->ns->destroy;
		1136	}
		1137
		1138	=item cf::player::list_logins
		1139
		1140	Returns am arrayref of all valid playernames in the system, can take a
		1141	while and may block, so not sync_job-capable, ever.
		1142
		1143	=cut
		1144
		1145	sub list_logins {
		1146	my $dirs = aio_readdir $PLAYERDIR
		1147	or return [];
		1148
		1149	my @logins;
		1150
		1151	for my $login (@$dirs) {
		1152	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1153	aio_read $fh, 0, 512, my $buf, 0 or next;
		1154	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1155
		1156	utf8::decode $login;
		1157	push @logins, $login;
		1158	}
		1159
		1160	\@logins
		1161	}
		1162
		1163	=item $player->maps
		1164
		1165	Returns an arrayref of map paths that are private for this
		1166	player. May block.
		1167
		1168	=cut
		1169
		1170	sub maps($) {
		1171	my ($pl) = @_;
		1172
		1173	$pl = ref $pl ? $pl->ob->name : $pl;
		1174
		1175	my $files = aio_readdir playerdir $pl
		1176	or return;
		1177
		1178	my @paths;
		1179
		1180	for (@$files) {
		1181	utf8::decode $_;
		1182	next if /\.(?:pl|pst)$/;
		1183	next unless /^$PATH_SEP/o;
		1184
		1185	push @paths, cf::map::normalise "~$pl/$_";
		1186	}
		1187
		1188	\@paths
		1189	}
		1190
1037	=item $player->ext_reply ($msgid, $msgtype, %msg)	1191	=item $player->ext_reply ($msgid, %msg)
1038		1192
1039	Sends an ext reply to the player.	1193	Sends an ext reply to the player.
1040		1194
1041	=cut	1195	=cut
1042		1196
1043	sub cf::player::ext_reply($$$%) {	1197	sub ext_reply($$%) {
1044	my ($self, $id, %msg) = @_;	1198	my ($self, $id, %msg) = @_;
1045		1199
1046	$msg{msgid} = $id;	1200	$msg{msgid} = $id;
1047		1201
1048	$self->send ("ext " . to_json \%msg);	1202	$self->send ("ext " . cf::to_json \%msg);
		1203	}
		1204
		1205	=item $player->ext_event ($type, %msg)
		1206
		1207	Sends an ext event to the client.
		1208
		1209	=cut
		1210
		1211	sub ext_event($$%) {
		1212	my ($self, $type, %msg) = @_;
		1213
		1214	$self->ns->ext_event ($type, %msg);
		1215	}
		1216
		1217	=head3 cf::region
		1218
		1219	=over 4
		1220
		1221	=cut
		1222
		1223	package cf::region;
		1224
		1225	=item cf::region::find_by_path $path
		1226
		1227	Tries to decuce the probable region for a map knowing only its path.
		1228
		1229	=cut
		1230
		1231	sub find_by_path($) {
		1232	my ($path) = @_;
		1233
		1234	my ($match, $specificity);
		1235
		1236	for my $region (list) {
		1237	if ($region->match && $path =~ $region->match) {
		1238	($match, $specificity) = ($region, $region->specificity)
		1239	if $region->specificity > $specificity;
		1240	}
		1241	}
		1242
		1243	$match
1049	}	1244	}
1050		1245
1051	=back	1246	=back
1052
1053		1247
1054	=head3 cf::map	1248	=head3 cf::map
1055		1249
1056	=over 4	1250	=over 4
1057		1251
…		…
1060	package cf::map;	1254	package cf::map;
1061		1255
1062	use Fcntl;	1256	use Fcntl;
1063	use Coro::AIO;	1257	use Coro::AIO;
1064		1258
		1259	use overload
		1260	'""' => \&as_string,
		1261	fallback => 1;
		1262
1065	our $MAX_RESET = 7200;	1263	our $MAX_RESET = 3600;
1066	our $DEFAULT_RESET = 3600;	1264	our $DEFAULT_RESET = 3000;
1067		1265
1068	sub generate_random_map {	1266	sub generate_random_map {
1069	my ($path, $rmp) = @_;	1267	my ($self, $rmp) = @_;
1070
1071	# mit "rum" bekleckern, nicht	1268	# mit "rum" bekleckern, nicht
1072	cf::map::_create_random_map	1269	$self->_create_random_map (
1073	$path,
1074	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1075	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1076	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1077	$rmp->{exit_on_final_map},	1273	$rmp->{exit_on_final_map},
1078	$rmp->{xsize}, $rmp->{ysize},	1274	$rmp->{xsize}, $rmp->{ysize},
1079	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1080	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1081	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1277	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1082	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1278	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1083	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1279	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1084	(cf::region::find $rmp->{region})	1280	(cf::region::find $rmp->{region}), $rmp->{custom}
		1281	)
		1282	}
		1283
		1284	=item cf::map->register ($regex, $prio)
		1285
		1286	Register a handler for the map path matching the given regex at the
		1287	givne priority (higher is better, built-in handlers have priority 0, the
		1288	default).
		1289
		1290	=cut
		1291
		1292	sub register {
		1293	my (undef, $regex, $prio) = @_;
		1294	my $pkg = caller;
		1295
		1296	no strict;
		1297	push @{"$pkg\::ISA"}, __PACKAGE__;
		1298
		1299	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1300	}
		1301
		1302	# also paths starting with '/'
		1303	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1304
		1305	sub thawer_merge {
		1306	my ($self, $merge) = @_;
		1307
		1308	# we have to keep some variables in memory intact
		1309	local $self->{path};
		1310	local $self->{load_path};
		1311	local $self->{deny_save};
		1312	local $self->{deny_reset};
		1313
		1314	$self->SUPER::thawer_merge ($merge);
		1315	}
		1316
		1317	sub normalise {
		1318	my ($path, $base) = @_;
		1319
		1320	$path = "$path"; # make sure its a string
		1321
		1322	$path =~ s/\.map$//;
		1323
		1324	# map plan:
		1325	#
		1326	# /! non-realised random map exit (special hack!)
		1327	# {... are special paths that are not being touched
		1328	# ?xxx/... are special absolute paths
		1329	# ?random/... random maps
		1330	# /... normal maps
		1331	# ~user/... per-player map of a specific user
		1332
		1333	$path =~ s/$PATH_SEP/\//go;
		1334
		1335	# treat it as relative path if it starts with
		1336	# something that looks reasonable
		1337	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1338	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1339
		1340	$base =~ s{[^/]+/?$}{};
		1341	$path = "$base/$path";
		1342	}
		1343
		1344	for ($path) {
		1345	redo if s{//}{/};
		1346	redo if s{/\.?/}{/};
		1347	redo if s{/[^/]+/\.\./}{/};
		1348	}
		1349
		1350	$path
		1351	}
		1352
		1353	sub new_from_path {
		1354	my (undef, $path, $base) = @_;
		1355
		1356	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1357
		1358	$path = normalise $path, $base;
		1359
		1360	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1361	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1362	my $self = bless cf::map::new, $pkg;
		1363	$self->{path} = $path; $self->path ($path);
		1364	$self->init; # pass $1 etc.
		1365	return $self;
		1366	}
		1367	}
		1368
		1369	Carp::carp "unable to resolve path '$path' (base '$base').";
		1370	()
		1371	}
		1372
		1373	sub init {
		1374	my ($self) = @_;
		1375
		1376	$self
		1377	}
		1378
		1379	sub as_string {
		1380	my ($self) = @_;
		1381
		1382	"$self->{path}"
		1383	}
		1384
		1385	# the displayed name, this is a one way mapping
		1386	sub visible_name {
		1387	&as_string
		1388	}
		1389
		1390	# the original (read-only) location
		1391	sub load_path {
		1392	my ($self) = @_;
		1393
		1394	"$MAPDIR/$self->{path}.map"
		1395	}
		1396
		1397	# the temporary/swap location
		1398	sub save_path {
		1399	my ($self) = @_;
		1400
		1401	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1402	"$TMPDIR/$path.map"
		1403	}
		1404
		1405	# the unique path, undef == no special unique path
		1406	sub uniq_path {
		1407	my ($self) = @_;
		1408
		1409	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1410	"$UNIQUEDIR/$path"
1085	}	1411	}
1086		1412
1087	# and all this just because we cannot iterate over	1413	# and all this just because we cannot iterate over
1088	# all maps in C++...	1414	# all maps in C++...
1089	sub change_all_map_light {	1415	sub change_all_map_light {
1090	my ($change) = @_;	1416	my ($change) = @_;
1091		1417
1092	$_->change_map_light ($change) for values %cf::MAP;	1418	$_->change_map_light ($change)
		1419	for grep $_->outdoor, values %cf::MAP;
1093	}	1420	}
1094		1421
		1422	sub unlink_save {
		1423	my ($self) = @_;
		1424
		1425	utf8::encode (my $save = $self->save_path);
		1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1427	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1428	}
		1429
1095	sub try_load_header($) {	1430	sub load_header_from($) {
1096	my ($path) = @_;	1431	my ($self, $path) = @_;
1097		1432
1098	utf8::encode $path;	1433	utf8::encode $path;
1099	aio_open $path, O_RDONLY, 0	1434	#aio_open $path, O_RDONLY, 0
		1435	# or return;
		1436
		1437	$self->_load_header ($path)
1100	or return;	1438	or return;
1101		1439
1102	my $map = cf::map::new	1440	$self->{load_path} = $path;
		1441
		1442	1
		1443	}
		1444
		1445	sub load_header_orig {
		1446	my ($self) = @_;
		1447
		1448	$self->load_header_from ($self->load_path)
		1449	}
		1450
		1451	sub load_header_temp {
		1452	my ($self) = @_;
		1453
		1454	$self->load_header_from ($self->save_path)
		1455	}
		1456
		1457	sub prepare_temp {
		1458	my ($self) = @_;
		1459
		1460	$self->last_access ((delete $self->{last_access})
		1461	|| $cf::RUNTIME); #d#
		1462	# safety
		1463	$self->{instantiate_time} = $cf::RUNTIME
		1464	if $self->{instantiate_time} > $cf::RUNTIME;
		1465	}
		1466
		1467	sub prepare_orig {
		1468	my ($self) = @_;
		1469
		1470	$self->{load_original} = 1;
		1471	$self->{instantiate_time} = $cf::RUNTIME;
		1472	$self->last_access ($cf::RUNTIME);
		1473	$self->instantiate;
		1474	}
		1475
		1476	sub load_header {
		1477	my ($self) = @_;
		1478
		1479	if ($self->load_header_temp) {
		1480	$self->prepare_temp;
		1481	} else {
		1482	$self->load_header_orig
1103	or return;	1483	or return;
		1484	$self->prepare_orig;
		1485	}
1104		1486
1105	$map->load_header ($path)	1487	$self->default_region (cf::region::find_by_path $self->{path})
1106	or return;	1488	unless $self->default_region;
1107		1489
1108	$map->{load_path} = $path;	1490	1
1109
1110	$map
1111	}	1491	}
1112		1492
		1493	sub find;
1113	sub find_map {	1494	sub find {
1114	my ($path, $origin) = @_;	1495	my ($path, $origin) = @_;
1115		1496
1116	#warn "find_map<$path,$origin>\n";#d#
1117
1118	$path = new cf::path $path, $origin && $origin->path;	1497	$path = normalise $path, $origin && $origin->path;
1119	my $key = $path->as_string;
1120		1498
		1499	cf::lock_wait "map_find:$path";
		1500
1121	$cf::MAP{$key} || do {	1501	$cf::MAP{$path} || do {
1122	# do it the slow way	1502	my $guard = cf::lock_acquire "map_find:$path";
1123	my $map = try_load_header $path->save_path;	1503	my $map = new_from_path cf::map $path
1124
1125	if ($map) {
1126	# safety
1127	$map->{instantiate_time} = $cf::RUNTIME
1128	if $map->{instantiate_time} > $cf::RUNTIME;
1129	} else {
1130	if (my $rmp = $path->random_map_params) {
1131	$map = generate_random_map $key, $rmp;
1132	} else {
1133	$map = try_load_header $path->load_path;
1134	}
1135
1136	$map or return;	1504	or return;
1137		1505
1138	$map->{load_original} = 1;
1139	$map->{instantiate_time} = $cf::RUNTIME;
1140	$map->instantiate;
1141
1142	# per-player maps become, after loading, normal maps
1143	$map->per_player (0) if $path->{user_rel};
1144	}
1145
1146	$map->path ($key);
1147	$map->{path} = $path;
1148	$map->last_access ($cf::RUNTIME);	1506	$map->{last_save} = $cf::RUNTIME;
1149		1507
1150	if ($map->should_reset) {	1508	$map->load_header
		1509	or return;
		1510
		1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1512	# doing this can freeze the server in a sync job, obviously
		1513	#$cf::WAIT_FOR_TICK->wait;
1151	$map->reset;	1514	$map->reset;
1152	$map = find_map $path;	1515	undef $guard;
		1516	return find $path;
1153	}	1517	}
1154		1518
1155	$cf::MAP{$key} = $map	1519	$cf::MAP{$path} = $map
1156	}	1520	}
1157	}	1521	}
		1522
		1523	sub pre_load { }
		1524	sub post_load { }
1158		1525
1159	sub load {	1526	sub load {
1160	my ($self) = @_;	1527	my ($self) = @_;
1161		1528
1162	return if $self->in_memory != cf::MAP_SWAPPED;	1529	local $self->{deny_reset} = 1; # loading can take a long time
1163
1164	$self->in_memory (cf::MAP_LOADING);
1165		1530
1166	my $path = $self->{path};	1531	my $path = $self->{path};
1167		1532
		1533	{
		1534	my $guard = cf::lock_acquire "map_load:$path";
		1535
		1536	return if $self->in_memory != cf::MAP_SWAPPED;
		1537
		1538	$self->in_memory (cf::MAP_LOADING);
		1539
1168	$self->alloc;	1540	$self->alloc;
		1541
		1542	$self->pre_load;
		1543	Coro::cede;
		1544
1169	$self->load_objects ($self->{load_path}, 1)	1545	$self->_load_objects ($self->{load_path}, 1)
1170	or return;	1546	or return;
1171		1547
1172	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1173	if delete $self->{load_original};	1549	if delete $self->{load_original};
1174		1550
1175	if (my $uniq = $path->uniq_path) {	1551	if (my $uniq = $self->uniq_path) {
1176	utf8::encode $uniq;	1552	utf8::encode $uniq;
1177	if (aio_open $uniq, O_RDONLY, 0) {	1553	if (aio_open $uniq, O_RDONLY, 0) {
1178	$self->clear_unique_items;	1554	$self->clear_unique_items;
1179	$self->load_objects ($uniq, 0);	1555	$self->_load_objects ($uniq, 0);
1180	}	1556	}
1181	}	1557	}
1182		1558
		1559	Coro::cede;
1183	# now do the right thing for maps	1560	# now do the right thing for maps
1184	$self->link_multipart_objects;	1561	$self->link_multipart_objects;
1185
1186	if ($self->{path}->is_style_map) {
1187	$self->{deny_save} = 1;
1188	$self->{deny_reset} = 1;
1189	} else {
1190	$self->fix_auto_apply;
1191	$self->decay_objects;
1192	$self->update_buttons;
1193	$self->set_darkness_map;
1194	$self->difficulty ($self->estimate_difficulty)	1562	$self->difficulty ($self->estimate_difficulty)
1195	unless $self->difficulty;	1563	unless $self->difficulty;
		1564	Coro::cede;
		1565
		1566	unless ($self->{deny_activate}) {
		1567	$self->decay_objects;
		1568	$self->fix_auto_apply;
		1569	$self->update_buttons;
		1570	Coro::cede;
		1571	$self->set_darkness_map;
		1572	Coro::cede;
1196	$self->activate;	1573	$self->activate;
1197	}	1574	}
1198		1575
1199	$self->in_memory (cf::MAP_IN_MEMORY);	1576	$self->in_memory (cf::MAP_IN_MEMORY);
1200	}	1577	}
1201		1578
1202	sub load_map_sync {	1579	$self->post_load;
		1580	}
		1581
		1582	sub customise_for {
		1583	my ($self, $ob) = @_;
		1584
		1585	return find "~" . $ob->name . "/" . $self->{path}
		1586	if $self->per_player;
		1587
		1588	$self
		1589	}
		1590
		1591	# find and load all maps in the 3x3 area around a map
		1592	sub load_diag {
		1593	my ($map) = @_;
		1594
		1595	my @diag; # diagonal neighbours
		1596
		1597	for (0 .. 3) {
		1598	my $neigh = $map->tile_path ($_)
		1599	or next;
		1600	$neigh = find $neigh, $map
		1601	or next;
		1602	$neigh->load;
		1603
		1604	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1605	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1606	}
		1607
		1608	for (@diag) {
		1609	my $neigh = find @$_
		1610	or next;
		1611	$neigh->load;
		1612	}
		1613	}
		1614
		1615	sub find_sync {
1203	my ($path, $origin) = @_;	1616	my ($path, $origin) = @_;
1204		1617
1205	#warn "load_map_sync<$path, $origin>\n";#d#	1618	cf::sync_job { find $path, $origin }
		1619	}
1206		1620
1207	cf::sync_job {	1621	sub do_load_sync {
1208	my $map = cf::map::find_map $path, $origin	1622	my ($map) = @_;
1209	or return;	1623
		1624	cf::sync_job { $map->load };
		1625	}
		1626
		1627	our %MAP_PREFETCH;
		1628	our $MAP_PREFETCHER = undef;
		1629
		1630	sub find_async {
		1631	my ($path, $origin) = @_;
		1632
		1633	$path = normalise $path, $origin && $origin->{path};
		1634
		1635	if (my $map = $cf::MAP{$path}) {
		1636	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1637	}
		1638
		1639	undef $MAP_PREFETCH{$path};
		1640	$MAP_PREFETCHER ||= cf::async {
		1641	while (%MAP_PREFETCH) {
		1642	for my $path (keys %MAP_PREFETCH) {
		1643	my $map = find $path
		1644	or next;
1210	$map->load;	1645	$map->load;
1211	$map	1646
		1647	delete $MAP_PREFETCH{$path};
		1648	}
		1649	}
		1650	undef $MAP_PREFETCHER;
1212	}	1651	};
		1652	$MAP_PREFETCHER->prio (6);
		1653
		1654	()
1213	}	1655	}
1214		1656
1215	sub save {	1657	sub save {
1216	my ($self) = @_;	1658	my ($self) = @_;
1217		1659
1218	my $save = $self->{path}->save_path; utf8::encode $save;	1660	my $lock = cf::lock_acquire "map_data:" . $self->path;
1219	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1220		1661
1221	$self->{last_save} = $cf::RUNTIME;	1662	$self->{last_save} = $cf::RUNTIME;
1222		1663
1223	return unless $self->dirty;	1664	return unless $self->dirty;
1224		1665
		1666	my $save = $self->save_path; utf8::encode $save;
		1667	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1668
1225	$self->{load_path} = $save;	1669	$self->{load_path} = $save;
1226		1670
1227	return if $self->{deny_save};	1671	return if $self->{deny_save};
1228		1672
		1673	local $self->{last_access} = $self->last_access;#d#
		1674
		1675	cf::async {
		1676	$_->contr->save for $self->players;
		1677	};
		1678
1229	if ($uniq) {	1679	if ($uniq) {
1230	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1231	$self->save_objects ($uniq, cf::IO_UNIQUES);	1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1232	} else {	1682	} else {
1233	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1683	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1234	}	1684	}
1235	}	1685	}
1236		1686
1237	sub swap_out {	1687	sub swap_out {
1238	my ($self) = @_;	1688	my ($self) = @_;
		1689
		1690	# save first because save cedes
		1691	$self->save;
		1692
		1693	my $lock = cf::lock_acquire "map_data:" . $self->path;
1239		1694
1240	return if $self->players;	1695	return if $self->players;
1241	return if $self->in_memory != cf::MAP_IN_MEMORY;	1696	return if $self->in_memory != cf::MAP_IN_MEMORY;
1242	return if $self->{deny_save};	1697	return if $self->{deny_save};
1243		1698
1244	$self->save;
1245	$self->clear;	1699	$self->clear;
1246	$self->in_memory (cf::MAP_SWAPPED);	1700	$self->in_memory (cf::MAP_SWAPPED);
1247	}	1701	}
1248		1702
1249	sub reset_at {	1703	sub reset_at {
1250	my ($self) = @_;	1704	my ($self) = @_;
1251		1705
1252	# TODO: safety, remove and allow resettable per-player maps	1706	# TODO: safety, remove and allow resettable per-player maps
1253	return 1e99 if $self->{path}{user_rel};	1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1254	return 1e99 if $self->{deny_reset};	1708	return 1e99 if $self->{deny_reset};
1255		1709
1256	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1257	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1258		1712
…		…
1263	my ($self) = @_;	1717	my ($self) = @_;
1264		1718
1265	$self->reset_at <= $cf::RUNTIME	1719	$self->reset_at <= $cf::RUNTIME
1266	}	1720	}
1267		1721
1268	sub unlink_save {
1269	my ($self) = @_;
1270
1271	utf8::encode (my $save = $self->{path}->save_path);
1272	aioreq_pri 3; IO::AIO::aio_unlink $save;
1273	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1274	}
1275
1276	sub rename {
1277	my ($self, $new_path) = @_;
1278
1279	$self->unlink_save;
1280
1281	delete $cf::MAP{$self->path};
1282	$self->{path} = new cf::path $new_path;
1283	$self->path ($self->{path}->as_string);
1284	$cf::MAP{$self->path} = $self;
1285
1286	$self->save;
1287	}
1288
1289	sub reset {	1722	sub reset {
1290	my ($self) = @_;	1723	my ($self) = @_;
1291		1724
		1725	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1726
1292	return if $self->players;	1727	return if $self->players;
1293	return if $self->{path}{user_rel};#d#	1728	return if $self->isa ("ext::map_per_player");#d#
1294		1729
1295	warn "resetting map ", $self->path;#d#	1730	warn "resetting map ", $self->path;#d#
1296		1731
		1732	$self->in_memory (cf::MAP_SWAPPED);
		1733
		1734	# need to save uniques path
		1735	unless ($self->{deny_save}) {
		1736	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1737
		1738	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1739	if $uniq;
		1740	}
		1741
1297	delete $cf::MAP{$self->path};	1742	delete $cf::MAP{$self->path};
		1743
		1744	$self->clear;
1298		1745
1299	$_->clear_links_to ($self) for values %cf::MAP;	1746	$_->clear_links_to ($self) for values %cf::MAP;
1300		1747
1301	$self->unlink_save;	1748	$self->unlink_save;
1302	$self->destroy;	1749	$self->destroy;
…		…
1305	my $nuke_counter = "aaaa";	1752	my $nuke_counter = "aaaa";
1306		1753
1307	sub nuke {	1754	sub nuke {
1308	my ($self) = @_;	1755	my ($self) = @_;
1309		1756
		1757	delete $cf::MAP{$self->path};
		1758
		1759	$self->unlink_save;
		1760
		1761	bless $self, "cf::map";
		1762	delete $self->{deny_reset};
1310	$self->{deny_save} = 1;	1763	$self->{deny_save} = 1;
1311	$self->reset_timeout (1);	1764	$self->reset_timeout (1);
1312	$self->rename ("{nuke}/" . ($nuke_counter++));	1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1766
		1767	$cf::MAP{$self->path} = $self;
		1768
1313	$self->reset; # polite request, might not happen	1769	$self->reset; # polite request, might not happen
1314	}	1770	}
1315		1771
1316	sub customise_for {	1772	=item cf::map::unique_maps
1317	my ($map, $ob) = @_;
1318		1773
1319	if ($map->per_player) {	1774	Returns an arrayref of paths of all shared maps that have
1320	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1775	instantiated unique items. May block.
1321	}
1322		1776
1323	$map	1777	=cut
1324	}
1325		1778
1326	sub emergency_save {	1779	sub unique_maps() {
1327	local $cf::FREEZE = 1;	1780	my $files = aio_readdir $UNIQUEDIR
		1781	or return;
1328		1782
1329	warn "enter emergency map save\n";	1783	my @paths;
1330		1784
1331	cf::sync_job {	1785	for (@$files) {
1332	warn "begin emergency map save\n";	1786	utf8::decode $_;
1333	$_->save for values %cf::MAP;	1787	next if /\.pst$/;
		1788	next unless /^$PATH_SEP/o;
		1789
		1790	push @paths, cf::map::normalise $_;
1334	};	1791	}
1335		1792
1336	warn "end emergency map save\n";	1793	\@paths
1337	}	1794	}
1338		1795
1339	package cf;	1796	package cf;
1340		1797
1341	=back	1798	=back
1342		1799
		1800	=head3 cf::object
		1801
		1802	=cut
		1803
		1804	package cf::object;
		1805
		1806	=over 4
		1807
		1808	=item $ob->inv_recursive
		1809
		1810	Returns the inventory of the object _and_ their inventories, recursively.
		1811
		1812	=cut
		1813
		1814	sub inv_recursive_;
		1815	sub inv_recursive_ {
		1816	map { $_, inv_recursive_ $_->inv } @_
		1817	}
		1818
		1819	sub inv_recursive {
		1820	inv_recursive_ inv $_[0]
		1821	}
		1822
		1823	package cf;
		1824
		1825	=back
1343		1826
1344	=head3 cf::object::player	1827	=head3 cf::object::player
1345		1828
1346	=over 4	1829	=over 4
1347		1830
…		…
1387		1870
1388	=item $player_object->enter_link	1871	=item $player_object->enter_link
1389		1872
1390	Freezes the player and moves him/her to a special map (C<{link}>).	1873	Freezes the player and moves him/her to a special map (C<{link}>).
1391		1874
1392	The player should be reaosnably safe there for short amounts of time. You	1875	The player should be reasonably safe there for short amounts of time. You
1393	I<MUST> call C<leave_link> as soon as possible, though.	1876	I<MUST> call C<leave_link> as soon as possible, though.
1394		1877
		1878	Will never block.
		1879
1395	=item $player_object->leave_link ($map, $x, $y)	1880	=item $player_object->leave_link ($map, $x, $y)
1396		1881
1397	Moves the player out of the specila link map onto the given map. If the	1882	Moves the player out of the special C<{link}> map onto the specified
1398	map is not valid (or omitted), the player will be moved back to the	1883	map. If the map is not valid (or omitted), the player will be moved back
1399	location he/she was before the call to C<enter_link>, or, if that fails,	1884	to the location he/she was before the call to C<enter_link>, or, if that
1400	to the emergency map position.	1885	fails, to the emergency map position.
1401		1886
1402	Might block.	1887	Might block.
1403		1888
1404	=cut	1889	=cut
		1890
		1891	sub link_map {
		1892	unless ($LINK_MAP) {
		1893	$LINK_MAP = cf::map::find "{link}"
		1894	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1895	$LINK_MAP->load;
		1896	}
		1897
		1898	$LINK_MAP
		1899	}
1405		1900
1406	sub cf::object::player::enter_link {	1901	sub cf::object::player::enter_link {
1407	my ($self) = @_;	1902	my ($self) = @_;
1408		1903
1409	return if $self->map == $LINK_MAP;	1904	$self->deactivate_recursive;
1410		1905
		1906	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1907
1411	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1412	if $self->map;	1909	if $self->map;
1413		1910
1414	$self->enter_map ($LINK_MAP, 20, 20);	1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1415	$self->deactivate_recursive;
1416	}	1912	}
1417		1913
1418	sub cf::object::player::leave_link {	1914	sub cf::object::player::leave_link {
1419	my ($self, $map, $x, $y) = @_;	1915	my ($self, $map, $x, $y) = @_;
1420		1916
1421	my $link_pos = delete $self->{_link_pos};	1917	my $link_pos = delete $self->{_link_pos};
1422		1918
1423	unless ($map) {	1919	unless ($map) {
1424	# restore original map position	1920	# restore original map position
1425	($map, $x, $y) = @{ $link_pos || [] };	1921	($map, $x, $y) = @{ $link_pos || [] };
1426	$map = cf::map::find_map $map;	1922	$map = cf::map::find $map;
1427		1923
1428	unless ($map) {	1924	unless ($map) {
1429	($map, $x, $y) = @$EMERGENCY_POSITION;	1925	($map, $x, $y) = @$EMERGENCY_POSITION;
1430	$map = cf::map::find_map $map	1926	$map = cf::map::find $map
1431	or die "FATAL: cannot load emergency map\n";	1927	or die "FATAL: cannot load emergency map\n";
1432	}	1928	}
1433	}	1929	}
1434		1930
1435	($x, $y) = (-1, -1)	1931	($x, $y) = (-1, -1)
…		…
1438	# use -1 or undef as default coordinates, not 0, 0	1934	# use -1 or undef as default coordinates, not 0, 0
1439	($x, $y) = ($map->enter_x, $map->enter_y)	1935	($x, $y) = ($map->enter_x, $map->enter_y)
1440	if $x <=0 && $y <= 0;	1936	if $x <=0 && $y <= 0;
1441		1937
1442	$map->load;	1938	$map->load;
		1939	$map->load_diag;
1443		1940
		1941	return unless $self->contr->active;
1444	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1445	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1446	}	1946	}
1447		1947
		1948	cf::player->attach (
		1949	on_logout => sub {
		1950	my ($pl) = @_;
		1951
		1952	# abort map switching before logout
		1953	if ($pl->ob->{_link_pos}) {
		1954	cf::sync_job {
		1955	$pl->ob->leave_link
		1956	};
		1957	}
		1958	},
		1959	on_login => sub {
		1960	my ($pl) = @_;
		1961
		1962	# try to abort aborted map switching on player login :)
		1963	# should happen only on crashes
		1964	if ($pl->ob->{_link_pos}) {
		1965	$pl->ob->enter_link;
		1966	(async {
		1967	$pl->ob->reply (undef,
		1968	"There was an internal problem at your last logout, "
		1969	. "the server will try to bring you to your intended destination in a second.",
		1970	cf::NDI_RED);
		1971	# we need this sleep as the login has a concurrent enter_exit running
		1972	# and this sleep increases chances of the player not ending up in scorn
		1973	Coro::Timer::sleep 1;
		1974	$pl->ob->leave_link;
		1975	})->prio (2);
		1976	}
		1977	},
		1978	);
		1979
1448	=item $player_object->goto_map ($map, $x, $y)	1980	=item $player_object->goto ($path, $x, $y)
1449		1981
1450	=cut	1982	=cut
1451		1983
1452	sub cf::object::player::goto_map {	1984	sub cf::object::player::goto {
1453	my ($self, $path, $x, $y) = @_;	1985	my ($self, $path, $x, $y) = @_;
1454		1986
1455	$self->enter_link;	1987	$self->enter_link;
1456		1988
1457	(Coro::async {	1989	(async {
1458	$path = new cf::path $path;	1990	my $map = eval {
1459
1460	my $map = cf::map::find_map $path->as_string;	1991	my $map = cf::map::find $path;
1461	$map = $map->customise_for ($self) if $map;	1992	$map = $map->customise_for ($self) if $map;
1462
1463	warn "entering ", $map->path, " at ($x, $y)\n"
1464	if $map;	1993	$map
1465		1994	} or
1466	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1995	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1467		1996
1468	$self->leave_link ($map, $x, $y);	1997	$self->leave_link ($map, $x, $y);
1469	})->prio (1);	1998	})->prio (1);
1470	}	1999	}
1471		2000
…		…
1475		2004
1476	sub parse_random_map_params {	2005	sub parse_random_map_params {
1477	my ($spec) = @_;	2006	my ($spec) = @_;
1478		2007
1479	my $rmp = { # defaults	2008	my $rmp = { # defaults
1480	xsize => 10,	2009	xsize => (cf::rndm 15, 40),
1481	ysize => 10,	2010	ysize => (cf::rndm 15, 40),
		2011	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2012	#layout => string,
1482	};	2013	};
1483		2014
1484	for (split /\n/, $spec) {	2015	for (split /\n/, $spec) {
1485	my ($k, $v) = split /\s+/, $_, 2;	2016	my ($k, $v) = split /\s+/, $_, 2;
1486		2017
…		…
1490	$rmp	2021	$rmp
1491	}	2022	}
1492		2023
1493	sub prepare_random_map {	2024	sub prepare_random_map {
1494	my ($exit) = @_;	2025	my ($exit) = @_;
		2026
		2027	my $guard = cf::lock_acquire "exit_prepare:$exit";
1495		2028
1496	# all this does is basically replace the /! path by	2029	# all this does is basically replace the /! path by
1497	# a new random map path (?random/...) with a seed	2030	# a new random map path (?random/...) with a seed
1498	# that depends on the exit object	2031	# that depends on the exit object
1499		2032
1500	my $rmp = parse_random_map_params $exit->msg;	2033	my $rmp = parse_random_map_params $exit->msg;
1501		2034
1502	if ($exit->map) {	2035	if ($exit->map) {
1503	$rmp->{region} = $exit->map->region_name;	2036	$rmp->{region} = $exit->region->name;
1504	$rmp->{origin_map} = $exit->map->path;	2037	$rmp->{origin_map} = $exit->map->path;
1505	$rmp->{origin_x} = $exit->x;	2038	$rmp->{origin_x} = $exit->x;
1506	$rmp->{origin_y} = $exit->y;	2039	$rmp->{origin_y} = $exit->y;
1507	}	2040	}
1508		2041
1509	$rmp->{random_seed} ||= $exit->random_seed;	2042	$rmp->{random_seed} ||= $exit->random_seed;
1510		2043
1511	my $data = cf::to_json $rmp;	2044	my $data = cf::to_json $rmp;
1512	my $md5 = Digest::MD5::md5_hex $data;	2045	my $md5 = Digest::MD5::md5_hex $data;
		2046	my $meta = "$RANDOMDIR/$md5.meta";
1513		2047
1514	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2048	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1515	aio_write $fh, 0, (length $data), $data, 0;	2049	aio_write $fh, 0, (length $data), $data, 0;
		2050	undef $fh;
		2051	aio_rename "$meta~", $meta;
1516		2052
1517	$exit->slaying ("?random/$md5");	2053	$exit->slaying ("?random/$md5");
1518	$exit->msg (undef);	2054	$exit->msg (undef);
1519	}	2055	}
1520	}	2056	}
…		…
1522	sub cf::object::player::enter_exit {	2058	sub cf::object::player::enter_exit {
1523	my ($self, $exit) = @_;	2059	my ($self, $exit) = @_;
1524		2060
1525	return unless $self->type == cf::PLAYER;	2061	return unless $self->type == cf::PLAYER;
1526		2062
		2063	if ($exit->slaying eq "/!") {
		2064	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2065	# the problem is that $exit might not survive long enough
		2066	# so it needs to be done right now, right here
		2067	cf::sync_job { prepare_random_map $exit };
		2068	}
		2069
		2070	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2071	my $hp = $exit->stats->hp;
		2072	my $sp = $exit->stats->sp;
		2073
1527	$self->enter_link;	2074	$self->enter_link;
1528		2075
1529	(Coro::async {	2076	(async {
		2077	$self->deactivate_recursive; # just to be sure
1530	unless (eval {	2078	unless (eval {
1531		2079	$self->goto ($slaying, $hp, $sp);
1532	prepare_random_map $exit
1533	if $exit->slaying eq "/!";
1534
1535	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1536	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1537		2080
1538	1;	2081	1;
1539	}) {	2082	}) {
1540	$self->message ("Something went wrong deep within the crossfire server. "	2083	$self->message ("Something went wrong deep within the crossfire server. "
1541	. "I'll try to bring you back to the map you were before. "	2084	. "I'll try to bring you back to the map you were before. "
1542	. "Please report this to the dungeon master",	2085	. "Please report this to the dungeon master!",
1543	cf::NDI_UNIQUE | cf::NDI_RED);	2086	cf::NDI_UNIQUE | cf::NDI_RED);
1544		2087
1545	warn "ERROR in enter_exit: $@";	2088	warn "ERROR in enter_exit: $@";
1546	$self->leave_link;	2089	$self->leave_link;
1547	}	2090	}
1548	})->prio (1);	2091	})->prio (1);
…		…
1561		2104
1562	sub cf::client::send_drawinfo {	2105	sub cf::client::send_drawinfo {
1563	my ($self, $text, $flags) = @_;	2106	my ($self, $text, $flags) = @_;
1564		2107
1565	utf8::encode $text;	2108	utf8::encode $text;
1566	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2109	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1567	}	2110	}
1568		2111
		2112	=item $client->ext_event ($type, %msg)
		2113
		2114	Sends an exti event to the client.
		2115
		2116	=cut
		2117
		2118	sub cf::client::ext_event($$%) {
		2119	my ($self, $type, %msg) = @_;
		2120
		2121	$msg{msgtype} = "event_$type";
		2122	$self->send_packet ("ext " . cf::to_json \%msg);
		2123	}
1569		2124
1570	=item $success = $client->query ($flags, "text", \&cb)	2125	=item $success = $client->query ($flags, "text", \&cb)
1571		2126
1572	Queues a query to the client, calling the given callback with	2127	Queues a query to the client, calling the given callback with
1573	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2128	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1598	on_reply => sub {	2153	on_reply => sub {
1599	my ($ns, $msg) = @_;	2154	my ($ns, $msg) = @_;
1600		2155
1601	# this weird shuffling is so that direct followup queries	2156	# this weird shuffling is so that direct followup queries
1602	# get handled first	2157	# get handled first
1603	my $queue = delete $ns->{query_queue};	2158	my $queue = delete $ns->{query_queue}
		2159	or return; # be conservative, not sure how that can happen, but we saw a crash here
1604		2160
1605	(shift @$queue)->[1]->($msg);	2161	(shift @$queue)->[1]->($msg);
		2162	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1606		2163
1607	push @{ $ns->{query_queue} }, @$queue;	2164	push @{ $ns->{query_queue} }, @$queue;
1608		2165
1609	if (@{ $ns->{query_queue} } == @$queue) {	2166	if (@{ $ns->{query_queue} } == @$queue) {
1610	if (@$queue) {	2167	if (@$queue) {
…		…
1614	}	2171	}
1615	}	2172	}
1616	},	2173	},
1617	);	2174	);
1618		2175
1619	=item $client->coro (\&cb)	2176	=item $client->async (\&cb)
1620		2177
1621	Create a new coroutine, running the specified callback. The coroutine will	2178	Create a new coroutine, running the specified callback. The coroutine will
1622	be automatically cancelled when the client gets destroyed (e.g. on logout,	2179	be automatically cancelled when the client gets destroyed (e.g. on logout,
1623	or loss of connection).	2180	or loss of connection).
1624		2181
1625	=cut	2182	=cut
1626		2183
1627	sub cf::client::coro {	2184	sub cf::client::async {
1628	my ($self, $cb) = @_;	2185	my ($self, $cb) = @_;
1629		2186
1630	my $coro; $coro = async {	2187	my $coro = &Coro::async ($cb);
1631	eval {
1632	$cb->();
1633	};
1634	warn $@ if $@;
1635	};
1636		2188
1637	$coro->on_destroy (sub {	2189	$coro->on_destroy (sub {
1638	delete $self->{_coro}{$coro+0};	2190	delete $self->{_coro}{$coro+0};
1639	});	2191	});
1640		2192
…		…
1673		2225
1674	# here we export the classes and methods available to script code	2226	# here we export the classes and methods available to script code
1675		2227
1676	=pod	2228	=pod
1677		2229
1678	The following fucntions and emthods are available within a safe environment:	2230	The following functions and methods are available within a safe environment:
1679		2231
1680	cf::object contr pay_amount pay_player map	2232	cf::object contr pay_amount pay_player map
1681	cf::object::player player	2233	cf::object::player player
1682	cf::player peaceful	2234	cf::player peaceful
1683	cf::map trigger	2235	cf::map trigger
…		…
1768	#############################################################################	2320	#############################################################################
1769		2321
1770	=head2 EXTENSION DATABASE SUPPORT	2322	=head2 EXTENSION DATABASE SUPPORT
1771		2323
1772	Crossfire maintains a very simple database for extension use. It can	2324	Crossfire maintains a very simple database for extension use. It can
1773	currently store anything that can be serialised using Storable, which	2325	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1774	excludes objects.	2326	convert to/from binary).
1775		2327
1776	The parameter C<$family> should best start with the name of the extension	2328	The parameter C<$family> should best start with the name of the extension
1777	using it, it should be unique.	2329	using it, it should be unique.
1778		2330
1779	=over 4	2331	=over 4
1780		2332
1781	=item $hashref = cf::db_get $family
1782
1783	Return a hashref for use by the extension C<$family>, which can be
1784	modified. After modifications, you have to call C<cf::db_dirty> or
1785	C<cf::db_sync>.
1786
1787	=item $value = cf::db_get $family => $key	2333	=item $value = cf::db_get $family => $key
1788		2334
1789	Returns a single value from the database	2335	Returns a single value from the database.
1790
1791	=item cf::db_put $family => $hashref
1792
1793	Stores the given family hashref into the database. Updates are delayed, if
1794	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1795		2336
1796	=item cf::db_put $family => $key => $value	2337	=item cf::db_put $family => $key => $value
1797		2338
1798	Stores the given C<$value> in the family hash. Updates are delayed, if you	2339	Stores the given C<$value> in the family.
1799	want the data to be synced to disk immediately, use C<cf::db_sync>.
1800
1801	=item cf::db_dirty
1802
1803	Marks the database as dirty, to be updated at a later time.
1804
1805	=item cf::db_sync
1806
1807	Immediately write the database to disk I<if it is dirty>.
1808		2340
1809	=cut	2341	=cut
1810		2342
1811	our $DB;	2343	our $DB;
1812		2344
1813	{	2345	sub db_init {
1814	my $path = cf::localdir . "/database.pst";	2346	unless ($DB) {
		2347	$DB = BDB::db_create $DB_ENV;
1815		2348
1816	sub db_load() {	2349	cf::sync_job {
1817	warn "loading database $path\n";#d# remove later	2350	eval {
1818	$DB = stat $path ? Storable::retrieve $path : { };	2351	$DB->set_flags (BDB::CHKSUM);
1819	}
1820		2352
1821	my $pid;	2353	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1822		2354	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1823	sub db_save() {	2355	cf::cleanup "db_open(db): $!" if $!;
1824	warn "saving database $path\n";#d# remove later	2356	};
1825	waitpid $pid, 0 if $pid;	2357	cf::cleanup "db_open(db): $@" if $@;
1826	if (0 == ($pid = fork)) {
1827	$DB->{_meta}{version} = 1;
1828	Storable::nstore $DB, "$path~";
1829	rename "$path~", $path;
1830	cf::_exit 0 if defined $pid;
1831	}	2358	};
1832	}
1833
1834	my $dirty;
1835
1836	sub db_sync() {
1837	db_save if $dirty;
1838	undef $dirty;
1839	}
1840
1841	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1842	db_sync;
1843	});	2359	}
		2360	}
1844		2361
1845	sub db_dirty() {
1846	$dirty = 1;
1847	$idle->start;
1848	}
1849
1850	sub db_get($;$) {	2362	sub db_get($$) {
1851	@_ >= 2	2363	my $key = "$_[0]/$_[1]";
1852	? $DB->{$_[0]}{$_[1]}
1853	: ($DB->{$_[0]} ||= { })
1854	}
1855		2364
		2365	cf::sync_job {
		2366	BDB::db_get $DB, undef, $key, my $data;
		2367
		2368	$! ? ()
		2369	: $data
		2370	}
		2371	}
		2372
1856	sub db_put($$;$) {	2373	sub db_put($$$) {
1857	if (@_ >= 3) {	2374	BDB::dbreq_pri 4;
1858	$DB->{$_[0]}{$_[1]} = $_[2];	2375	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1859	} else {	2376	}
1860	$DB->{$_[0]} = $_[1];
1861	}
1862	db_dirty;
1863	}
1864		2377
1865	cf::global->attach (	2378	=item cf::cache $id => [$paths...], $processversion => $process
1866	prio => 10000,	2379
1867	on_cleanup => sub {	2380	Generic caching function that returns the value of the resource $id,
1868	db_sync;	2381	caching and regenerating as required.
		2382
		2383	This function can block.
		2384
		2385	=cut
		2386
		2387	sub cache {
		2388	my ($id, $src, $processversion, $process) = @_;
		2389
		2390	my $meta =
		2391	join "\x00",
		2392	$processversion,
		2393	map {
		2394	aio_stat $_
		2395	and Carp::croak "$_: $!";
		2396
		2397	($_, (stat _)[7,9])
		2398	} @$src;
		2399
		2400	my $dbmeta = db_get cache => "$id/meta";
		2401	if ($dbmeta ne $meta) {
		2402	# changed, we may need to process
		2403
		2404	my @data;
		2405	my $md5;
		2406
		2407	for (0 .. $#$src) {
		2408	0 <= aio_load $src->[$_], $data[$_]
		2409	or Carp::croak "$src->[$_]: $!";
1869	},	2410	}
1870	);	2411
		2412	# if processing is expensive, check
		2413	# checksum first
		2414	if (1) {
		2415	$md5 =
		2416	join "\x00",
		2417	$processversion,
		2418	map {
		2419	Coro::cede;
		2420	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2421	} 0.. $#$src;
		2422
		2423
		2424	my $dbmd5 = db_get cache => "$id/md5";
		2425	if ($dbmd5 eq $md5) {
		2426	db_put cache => "$id/meta", $meta;
		2427
		2428	return db_get cache => "$id/data";
		2429	}
		2430	}
		2431
		2432	my $t1 = Time::HiRes::time;
		2433	my $data = $process->(\@data);
		2434	my $t2 = Time::HiRes::time;
		2435
		2436	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2437
		2438	db_put cache => "$id/data", $data;
		2439	db_put cache => "$id/md5" , $md5;
		2440	db_put cache => "$id/meta", $meta;
		2441
		2442	return $data;
		2443	}
		2444
		2445	db_get cache => "$id/data"
1871	}	2446	}
		2447
		2448	=item fork_call { }, $args
		2449
		2450	Executes the given code block with the given arguments in a seperate
		2451	process, returning the results. Everything must be serialisable with
		2452	Coro::Storable. May, of course, block. Note that the executed sub may
		2453	never block itself or use any form of Event handling.
		2454
		2455	=cut
		2456
		2457	sub fork_call(&@) {
		2458	my ($cb, @args) = @_;
		2459
		2460	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2461	# or die "socketpair: $!";
		2462	pipe my $fh1, my $fh2
		2463	or die "pipe: $!";
		2464
		2465	if (my $pid = fork) {
		2466	close $fh2;
		2467
		2468	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2469	$res = Coro::Storable::thaw $res;
		2470
		2471	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2472
		2473	die $$res unless "ARRAY" eq ref $res;
		2474
		2475	return wantarray ? @$res : $res->[-1];
		2476	} else {
		2477	reset_signals;
		2478	local $SIG{__WARN__};
		2479	local $SIG{__DIE__};
		2480	eval {
		2481	close $fh1;
		2482
		2483	my @res = eval { $cb->(@args) };
		2484	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2485	};
		2486
		2487	warn $@ if $@;
		2488	_exit 0;
		2489	}
		2490	}
		2491
		2492
1872		2493
1873	#############################################################################	2494	#############################################################################
1874	# the server's main()	2495	# the server's init and main functions
		2496
		2497	sub load_facedata($) {
		2498	my ($path) = @_;
		2499
		2500	warn "loading facedata from $path\n";
		2501
		2502	my $facedata;
		2503	0 < aio_load $path, $facedata
		2504	or die "$path: $!";
		2505
		2506	$facedata = Coro::Storable::thaw $facedata;
		2507
		2508	$facedata->{version} == 2
		2509	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2510
		2511	{
		2512	my $faces = $facedata->{faceinfo};
		2513
		2514	while (my ($face, $info) = each %$faces) {
		2515	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2516	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2517	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2518	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2519	Coro::cede;
		2520	}
		2521
		2522	while (my ($face, $info) = each %$faces) {
		2523	next unless $info->{smooth};
		2524	my $idx = cf::face::find $face
		2525	or next;
		2526	if (my $smooth = cf::face::find $info->{smooth}) {
		2527	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2528	} else {
		2529	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2530	}
		2531	Coro::cede;
		2532	}
		2533	}
		2534
		2535	{
		2536	my $anims = $facedata->{animinfo};
		2537
		2538	while (my ($anim, $info) = each %$anims) {
		2539	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2540	Coro::cede;
		2541	}
		2542
		2543	cf::anim::invalidate_all; # d'oh
		2544	}
		2545
		2546	1
		2547	}
		2548
		2549	sub reload_regions {
		2550	load_resource_file "$MAPDIR/regions"
		2551	or die "unable to load regions file\n";
		2552	}
		2553
		2554	sub reload_facedata {
		2555	load_facedata "$DATADIR/facedata"
		2556	or die "unable to load facedata\n";
		2557	}
		2558
		2559	sub reload_archetypes {
		2560	load_resource_file "$DATADIR/archetypes"
		2561	or die "unable to load archetypes\n";
		2562	}
		2563
		2564	sub reload_treasures {
		2565	load_resource_file "$DATADIR/treasures"
		2566	or die "unable to load treasurelists\n";
		2567	}
		2568
		2569	sub reload_resources {
		2570	warn "reloading resource files...\n";
		2571
		2572	reload_regions;
		2573	reload_facedata;
		2574	reload_archetypes;
		2575	reload_treasures;
		2576
		2577	warn "finished reloading resource files\n";
		2578	}
		2579
		2580	sub init {
		2581	reload_resources;
		2582	}
1875		2583
1876	sub cfg_load {	2584	sub cfg_load {
1877	open my $fh, "<:utf8", cf::confdir . "/config"	2585	open my $fh, "<:utf8", "$CONFDIR/config"
1878	or return;	2586	or return;
1879		2587
1880	local $/;	2588	local $/;
1881	*CFG = YAML::Syck::Load <$fh>;	2589	*CFG = YAML::Syck::Load <$fh>;
		2590
		2591	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2592
		2593	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2594	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2595
		2596	if (exists $CFG{mlockall}) {
		2597	eval {
		2598	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2599	and die "WARNING: m(un)lockall failed: $!\n";
		2600	};
		2601	warn $@ if $@;
		2602	}
1882	}	2603	}
1883		2604
1884	sub main {	2605	sub main {
1885	# we must not ever block the main coroutine	2606	# we must not ever block the main coroutine
1886	local $Coro::idle = sub {	2607	local $Coro::idle = sub {
1887	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2608	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1888	(Coro::unblock_sub {	2609	(async {
1889	Event::one_event;	2610	Event::one_event;
1890	})->();	2611	})->prio (Coro::PRIO_MAX);
1891	};	2612	};
1892		2613
1893	cfg_load;	2614	cfg_load;
1894	db_load;	2615	db_init;
1895	load_extensions;	2616	load_extensions;
		2617
		2618	$TICK_WATCHER->start;
1896	Event::loop;	2619	Event::loop;
1897	}	2620	}
1898		2621
1899	#############################################################################	2622	#############################################################################
1900	# initialisation	2623	# initialisation and cleanup
1901		2624
		2625	# install some emergency cleanup handlers
		2626	BEGIN {
		2627	for my $signal (qw(INT HUP TERM)) {
		2628	Event->signal (
		2629	reentrant => 0,
		2630	data => WF_AUTOCANCEL,
		2631	signal => $signal,
		2632	prio => 0,
		2633	cb => sub {
		2634	cf::cleanup "SIG$signal";
		2635	},
		2636	);
		2637	}
		2638	}
		2639
		2640	sub emergency_save() {
		2641	my $freeze_guard = cf::freeze_mainloop;
		2642
		2643	warn "enter emergency perl save\n";
		2644
		2645	cf::sync_job {
		2646	# use a peculiar iteration method to avoid tripping on perl
		2647	# refcount bugs in for. also avoids problems with players
		2648	# and maps saved/destroyed asynchronously.
		2649	warn "begin emergency player save\n";
		2650	for my $login (keys %cf::PLAYER) {
		2651	my $pl = $cf::PLAYER{$login} or next;
		2652	$pl->valid or next;
		2653	$pl->save;
		2654	}
		2655	warn "end emergency player save\n";
		2656
		2657	warn "begin emergency map save\n";
		2658	for my $path (keys %cf::MAP) {
		2659	my $map = $cf::MAP{$path} or next;
		2660	$map->valid or next;
		2661	$map->save;
		2662	}
		2663	warn "end emergency map save\n";
		2664
		2665	warn "begin emergency database checkpoint\n";
		2666	BDB::db_env_txn_checkpoint $DB_ENV;
		2667	warn "end emergency database checkpoint\n";
		2668	};
		2669
		2670	warn "leave emergency perl save\n";
		2671	}
		2672
		2673	sub post_cleanup {
		2674	my ($make_core) = @_;
		2675
		2676	warn Carp::longmess "post_cleanup backtrace"
		2677	if $make_core;
		2678	}
		2679
1902	sub reload() {	2680	sub do_reload_perl() {
1903	# can/must only be called in main	2681	# can/must only be called in main
1904	if ($Coro::current != $Coro::main) {	2682	if ($Coro::current != $Coro::main) {
1905	warn "can only reload from main coroutine\n";	2683	warn "can only reload from main coroutine";
1906	return;	2684	return;
1907	}	2685	}
1908		2686
1909	warn "reloading...";	2687	warn "reloading...";
1910		2688
1911	local $FREEZE = 1;	2689	warn "entering sync_job";
		2690
		2691	cf::sync_job {
		2692	cf::write_runtime; # external watchdog should not bark
1912	cf::emergency_save;	2693	cf::emergency_save;
		2694	cf::write_runtime; # external watchdog should not bark
1913		2695
1914	eval {	2696	warn "syncing database to disk";
		2697	BDB::db_env_txn_checkpoint $DB_ENV;
		2698
1915	# if anything goes wrong in here, we should simply crash as we already saved	2699	# if anything goes wrong in here, we should simply crash as we already saved
1916		2700
1917	# cancel all watchers	2701	warn "cancelling all WF_AUTOCANCEL watchers";
1918	for (Event::all_watchers) {	2702	for (Event::all_watchers) {
1919	$_->cancel if $_->data & WF_AUTOCANCEL;	2703	$_->cancel if $_->data & WF_AUTOCANCEL;
1920	}	2704	}
1921		2705
		2706	warn "flushing outstanding aio requests";
		2707	for (;;) {
		2708	BDB::flush;
		2709	IO::AIO::flush;
		2710	Coro::cede;
		2711	last unless IO::AIO::nreqs || BDB::nreqs;
		2712	warn "iterate...";
		2713	}
		2714
		2715	++$RELOAD;
		2716
1922	# cancel all extension coros	2717	warn "cancelling all extension coros";
1923	$_->cancel for values %EXT_CORO;	2718	$_->cancel for values %EXT_CORO;
1924	%EXT_CORO = ();	2719	%EXT_CORO = ();
1925		2720
1926	# unload all extensions	2721	warn "removing commands";
1927	for (@exts) {	2722	%COMMAND = ();
		2723
		2724	warn "removing ext commands";
		2725	%EXTCMD = ();
		2726
		2727	warn "unloading/nuking all extensions";
		2728	for my $pkg (@EXTS) {
1928	warn "unloading <$_>";	2729	warn "... unloading $pkg";
1929	unload_extension $_;	2730
		2731	if (my $cb = $pkg->can ("unload")) {
		2732	eval {
		2733	$cb->($pkg);
		2734	1
		2735	} or warn "$pkg unloaded, but with errors: $@";
1930	}	2736	}
1931		2737
		2738	warn "... nuking $pkg";
		2739	Symbol::delete_package $pkg;
		2740	}
		2741
1932	# unload all modules loaded from $LIBDIR	2742	warn "unloading all perl modules loaded from $LIBDIR";
1933	while (my ($k, $v) = each %INC) {	2743	while (my ($k, $v) = each %INC) {
1934	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2744	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1935		2745
1936	warn "removing <$k>";	2746	warn "... unloading $k";
1937	delete $INC{$k};	2747	delete $INC{$k};
1938		2748
1939	$k =~ s/\.pm$//;	2749	$k =~ s/\.pm$//;
1940	$k =~ s/\//::/g;	2750	$k =~ s/\//::/g;
1941		2751
…		…
1944	}	2754	}
1945		2755
1946	Symbol::delete_package $k;	2756	Symbol::delete_package $k;
1947	}	2757	}
1948		2758
1949	# sync database to disk
1950	cf::db_sync;
1951	IO::AIO::flush;
1952
1953	# get rid of safe::, as good as possible	2759	warn "getting rid of safe::, as good as possible";
1954	Symbol::delete_package "safe::$_"	2760	Symbol::delete_package "safe::$_"
1955	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2761	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1956		2762
1957	# remove register_script_function callbacks
1958	# TODO
1959
1960	# unload cf.pm "a bit"	2763	warn "unloading cf.pm \"a bit\"";
1961	delete $INC{"cf.pm"};	2764	delete $INC{"cf.pm"};
		2765	delete $INC{"cf/pod.pm"};
1962		2766
1963	# don't, removes xs symbols, too,	2767	# don't, removes xs symbols, too,
1964	# and global variables created in xs	2768	# and global variables created in xs
1965	#Symbol::delete_package __PACKAGE__;	2769	#Symbol::delete_package __PACKAGE__;
1966		2770
1967	# reload cf.pm	2771	warn "unload completed, starting to reload now";
		2772
1968	warn "reloading cf.pm";	2773	warn "reloading cf.pm";
1969	require cf;	2774	require cf;
1970	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2775	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1971		2776
1972	# load config and database again	2777	warn "loading config and database again";
1973	cf::cfg_load;	2778	cf::cfg_load;
1974	cf::db_load;
1975		2779
1976	# load extensions
1977	warn "load extensions";	2780	warn "loading extensions";
1978	cf::load_extensions;	2781	cf::load_extensions;
1979		2782
1980	# reattach attachments to objects	2783	warn "reattaching attachments to objects/players";
1981	warn "reattach";	2784	_global_reattach; # objects, sockets
1982	_global_reattach;	2785	warn "reattaching attachments to maps";
1983	};	2786	reattach $_ for values %MAP;
		2787	warn "reattaching attachments to players";
		2788	reattach $_ for values %PLAYER;
1984		2789
1985	if ($@) {	2790	warn "leaving sync_job";
		2791
		2792	1
		2793	} or do {
1986	warn $@;	2794	warn $@;
1987	warn "error while reloading, exiting.";	2795	warn "error while reloading, exiting.";
1988	exit 1;	2796	exit 1;
1989	}	2797	};
1990		2798
1991	warn "reloaded successfully";	2799	warn "reloaded";
1992	};	2800	};
1993		2801
1994	#############################################################################	2802	our $RELOAD_WATCHER; # used only during reload
1995		2803
1996	unless ($LINK_MAP) {	2804	sub reload_perl() {
1997	$LINK_MAP = cf::map::new;	2805	# doing reload synchronously and two reloads happen back-to-back,
		2806	# coro crashes during coro_state_free->destroy here.
1998		2807
1999	$LINK_MAP->width (41);	2808	$RELOAD_WATCHER ||= Event->timer (
2000	$LINK_MAP->height (41);	2809	reentrant => 0,
2001	$LINK_MAP->alloc;
2002	$LINK_MAP->path ("{link}");
2003	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2004	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2005
2006	# dirty hack because... archetypes are not yet loaded
2007	Event->timer (
2008	after => 2,	2810	after => 0,
		2811	data => WF_AUTOCANCEL,
2009	cb => sub {	2812	cb => sub {
2010	$_[0]->w->cancel;	2813	do_reload_perl;
2011		2814	undef $RELOAD_WATCHER;
2012	# provide some exits "home"
2013	my $exit = cf::object::new "exit";
2014
2015	$exit->slaying ($EMERGENCY_POSITION->[0]);
2016	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2017	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2018
2019	$LINK_MAP->insert ($exit->clone, 19, 19);
2020	$LINK_MAP->insert ($exit->clone, 19, 20);
2021	$LINK_MAP->insert ($exit->clone, 19, 21);
2022	$LINK_MAP->insert ($exit->clone, 20, 19);
2023	$LINK_MAP->insert ($exit->clone, 20, 21);
2024	$LINK_MAP->insert ($exit->clone, 21, 19);
2025	$LINK_MAP->insert ($exit->clone, 21, 20);
2026	$LINK_MAP->insert ($exit->clone, 21, 21);
2027
2028	$exit->destroy;
2029	});	2815	},
2030		2816	);
2031	$LINK_MAP->{deny_save} = 1;
2032	$LINK_MAP->{deny_reset} = 1;
2033
2034	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2035	}	2817	}
2036
2037	register "<global>", __PACKAGE__;
2038		2818
2039	register_command "reload" => sub {	2819	register_command "reload" => sub {
2040	my ($who, $arg) = @_;	2820	my ($who, $arg) = @_;
2041		2821
2042	if ($who->flag (FLAG_WIZ)) {	2822	if ($who->flag (FLAG_WIZ)) {
2043	$who->message ("start of reload.");
2044	reload;
2045	$who->message ("end of reload.");	2823	$who->message ("reloading server.");
		2824	async { reload_perl };
2046	}	2825	}
2047	};	2826	};
2048		2827
2049	unshift @INC, $LIBDIR;	2828	unshift @INC, $LIBDIR;
		2829
		2830	my $bug_warning = 0;
		2831
		2832	our @WAIT_FOR_TICK;
		2833	our @WAIT_FOR_TICK_BEGIN;
		2834
		2835	sub wait_for_tick {
		2836	return unless $TICK_WATCHER->is_active;
		2837	return if $Coro::current == $Coro::main;
		2838
		2839	my $signal = new Coro::Signal;
		2840	push @WAIT_FOR_TICK, $signal;
		2841	$signal->wait;
		2842	}
		2843
		2844	sub wait_for_tick_begin {
		2845	return unless $TICK_WATCHER->is_active;
		2846	return if $Coro::current == $Coro::main;
		2847
		2848	my $signal = new Coro::Signal;
		2849	push @WAIT_FOR_TICK_BEGIN, $signal;
		2850	$signal->wait;
		2851	}
2050		2852
2051	$TICK_WATCHER = Event->timer (	2853	$TICK_WATCHER = Event->timer (
2052	reentrant => 0,	2854	reentrant => 0,
		2855	parked => 1,
2053	prio => 0,	2856	prio => 0,
2054	at => $NEXT_TICK || $TICK,	2857	at => $NEXT_TICK || $TICK,
2055	data => WF_AUTOCANCEL,	2858	data => WF_AUTOCANCEL,
2056	cb => sub {	2859	cb => sub {
2057	unless ($FREEZE) {	2860	if ($Coro::current != $Coro::main) {
		2861	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2862	unless ++$bug_warning > 10;
		2863	return;
		2864	}
		2865
		2866	$NOW = $tick_start = Event::time;
		2867
2058	cf::server_tick; # one server iteration	2868	cf::server_tick; # one server iteration
		2869
2059	$RUNTIME += $TICK;	2870	$RUNTIME += $TICK;
2060	}
2061
2062	$NEXT_TICK += $TICK;	2871	$NEXT_TICK += $TICK;
2063		2872
		2873	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2874	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2875	Coro::async_pool {
		2876	write_runtime
		2877	or warn "ERROR: unable to write runtime file: $!";
		2878	};
		2879	}
		2880
		2881	# my $AFTER = Event::time;
		2882	# warn $AFTER - $NOW;#d#
		2883
		2884	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2885	$sig->send;
		2886	}
		2887	while (my $sig = shift @WAIT_FOR_TICK) {
		2888	$sig->send;
		2889	}
		2890
		2891	$NOW = Event::time;
		2892
2064	# if we are delayed by four ticks or more, skip them all	2893	# if we are delayed by four ticks or more, skip them all
2065	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2894	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2066		2895
2067	$TICK_WATCHER->at ($NEXT_TICK);	2896	$TICK_WATCHER->at ($NEXT_TICK);
2068	$TICK_WATCHER->start;	2897	$TICK_WATCHER->start;
		2898
		2899	$LOAD = ($NOW - $tick_start) / $TICK;
		2900	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2901
		2902	_post_tick;
		2903
		2904
2069	},	2905	},
2070	);	2906	);
2071		2907
		2908	{
2072	IO::AIO::max_poll_time $TICK * 0.2;	2909	BDB::max_poll_time $TICK * 0.1;
2073		2910	$BDB_POLL_WATCHER = Event->io (
2074	Event->io (	2911	reentrant => 0,
2075	fd => IO::AIO::poll_fileno,	2912	fd => BDB::poll_fileno,
2076	poll => 'r',	2913	poll => 'r',
2077	prio => 5,	2914	prio => 0,
2078	data => WF_AUTOCANCEL,
2079	cb => \&IO::AIO::poll_cb,
2080	);
2081
2082	Event->timer (
2083	data => WF_AUTOCANCEL,	2915	data => WF_AUTOCANCEL,
2084	after => 0,	2916	cb => \&BDB::poll_cb,
2085	interval => 10,	2917	);
2086	cb => sub {	2918	BDB::min_parallel 8;
2087	(Coro::unblock_sub {	2919
2088	write_runtime	2920	BDB::set_sync_prepare {
2089	or warn "ERROR: unable to write runtime file: $!";	2921	my $status;
		2922	my $current = $Coro::current;
		2923	(
		2924	sub {
		2925	$status = $!;
		2926	$current->ready; undef $current;
		2927	},
		2928	sub {
		2929	Coro::schedule while defined $current;
		2930	$! = $status;
		2931	},
		2932	)
		2933	};
		2934
		2935	unless ($DB_ENV) {
		2936	$DB_ENV = BDB::db_env_create;
		2937
		2938	cf::sync_job {
		2939	eval {
		2940	BDB::db_env_open
		2941	$DB_ENV,
		2942	$BDBDIR,
		2943	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2944	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2945	0666;
		2946
		2947	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2948
		2949	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2950	$DB_ENV->set_lk_detect;
		2951	};
		2952
		2953	cf::cleanup "db_env_open(db): $@" if $@;
2090	})->();	2954	};
2091	},	2955	}
2092	);	2956	}
		2957
		2958	{
		2959	IO::AIO::min_parallel 8;
		2960
		2961	undef $Coro::AIO::WATCHER;
		2962	IO::AIO::max_poll_time $TICK * 0.1;
		2963	$AIO_POLL_WATCHER = Event->io (
		2964	reentrant => 0,
		2965	data => WF_AUTOCANCEL,
		2966	fd => IO::AIO::poll_fileno,
		2967	poll => 'r',
		2968	prio => 6,
		2969	cb => \&IO::AIO::poll_cb,
		2970	);
		2971	}
		2972
		2973	my $_log_backtrace;
		2974
		2975	sub _log_backtrace {
		2976	my ($msg, @addr) = @_;
		2977
		2978	$msg =~ s/\n//;
		2979
		2980	# limit the # of concurrent backtraces
		2981	if ($_log_backtrace < 2) {
		2982	++$_log_backtrace;
		2983	async {
		2984	my @bt = fork_call {
		2985	@addr = map { sprintf "%x", $_ } @addr;
		2986	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2987	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2988	or die "addr2line: $!";
		2989
		2990	my @funcs;
		2991	my @res = <$fh>;
		2992	chomp for @res;
		2993	while (@res) {
		2994	my ($func, $line) = splice @res, 0, 2, ();
		2995	push @funcs, "[$func] $line";
		2996	}
		2997
		2998	@funcs
		2999	};
		3000
		3001	LOG llevInfo, "[ABT] $msg\n";
		3002	LOG llevInfo, "[ABT] $_\n" for @bt;
		3003	--$_log_backtrace;
		3004	};
		3005	} else {
		3006	LOG llevInfo, "[ABT] $msg\n";
		3007	LOG llevInfo, "[ABT] [suppressed]\n";
		3008	}
		3009	}
		3010
		3011	# load additional modules
		3012	use cf::pod;
		3013
		3014	END { cf::emergency_save }
2093		3015
2094	1	3016	1
2095		3017

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