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Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.93 by root, Thu Dec 21 22:41:35 2006 UTC vs.
Revision 1.168 by root, Sun Jan 14 00:37:14 2007 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.3 ();
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use Data::Dumper;
		21	use Digest::MD5;
		22	use Fcntl;
10	use IO::AIO ();	23	use IO::AIO 2.32 ();
11	use YAML::Syck ();	24	use YAML::Syck ();
12	use Time::HiRes;	25	use Time::HiRes;
13	use Event;	26
14	$Event::Eval = 1; # no idea why this is required, but it is	27	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
15		30
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
18		33
19	use strict;	34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
20
21	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		35
23	our %COMMAND = ();	36	our %COMMAND = ();
24	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
25	our %EXTCMD = ();	40	our %EXTCMD = ();
26		41	our %EXT_CORO = (); # coroutines bound to extensions
27	_init_vars;	42	our %EXT_MAP = (); # pluggable maps
28		43
29	our @EVENT;	44	our @EVENT;
30	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
31		46
32	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
33	our $TICK_WATCHER;	48	our $TICK_WATCHER;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
34	our $NEXT_TICK;	51	our $NEXT_TICK;
		52	our $NOW;
35		53
36	our %CFG;	54	our %CFG;
37		55
38	our $UPTIME; $UPTIME ||= time;	56	our $UPTIME; $UPTIME ||= time;
		57	our $RUNTIME;
		58
		59	our %PLAYER; # all users
		60	our %MAP; # all maps
		61	our $LINK_MAP; # the special {link} map, which is always available
		62	our $RANDOM_MAPS = cf::localdir . "/random";
		63
		64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		66
		67	# used to convert map paths into valid unix filenames by replacing / by ∕
		68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		69
		70	binmode STDOUT;
		71	binmode STDERR;
		72
		73	# read virtual server time, if available
		74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		75	open my $fh, "<", cf::localdir . "/runtime"
		76	or die "unable to read runtime file: $!";
		77	$RUNTIME = <$fh> + 0.;
		78	}
		79
		80	mkdir cf::localdir;
		81	mkdir cf::localdir . "/" . cf::playerdir;
		82	mkdir cf::localdir . "/" . cf::tmpdir;
		83	mkdir cf::localdir . "/" . cf::uniquedir;
		84	mkdir $RANDOM_MAPS;
		85
		86	our $EMERGENCY_POSITION;
39		87
40	#############################################################################	88	#############################################################################
41		89
42	=head2 GLOBAL VARIABLES	90	=head2 GLOBAL VARIABLES
43		91
44	=over 4	92	=over 4
45		93
46	=item $cf::UPTIME	94	=item $cf::UPTIME
47		95
48	The timestamp of the server start (so not actually an uptime).	96	The timestamp of the server start (so not actually an uptime).
		97
		98	=item $cf::RUNTIME
		99
		100	The time this server has run, starts at 0 and is increased by $cf::TICK on
		101	every server tick.
49		102
50	=item $cf::LIBDIR	103	=item $cf::LIBDIR
51		104
52	The perl library directory, where extensions and cf-specific modules can	105	The perl library directory, where extensions and cf-specific modules can
53	be found. It will be added to C<@INC> automatically.	106	be found. It will be added to C<@INC> automatically.
54		107
		108	=item $cf::NOW
		109
		110	The time of the last (current) server tick.
		111
55	=item $cf::TICK	112	=item $cf::TICK
56		113
57	The interval between server ticks, in seconds.	114	The interval between server ticks, in seconds.
58		115
59	=item %cf::CFG	116	=item %cf::CFG
60		117
61	Configuration for the server, loaded from C</etc/crossfire/config>, or	118	Configuration for the server, loaded from C</etc/crossfire/config>, or
62	from wherever your confdir points to.	119	from wherever your confdir points to.
		120
		121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		122
		123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		125	processing has been done. Call C<< ->wait >> on them to maximise the
		126	window of cpu time available, or simply to synchronise to the server tick.
63		127
64	=back	128	=back
65		129
66	=cut	130	=cut
67		131
68	BEGIN {	132	BEGIN {
69	*CORE::GLOBAL::warn = sub {	133	*CORE::GLOBAL::warn = sub {
70	my $msg = join "", @_;	134	my $msg = join "", @_;
		135	utf8::encode $msg;
		136
71	$msg .= "\n"	137	$msg .= "\n"
72	unless $msg =~ /\n$/;	138	unless $msg =~ /\n$/;
73		139
74	print STDERR "cfperl: $msg";
75	LOG llevError, "cfperl: $msg";	140	LOG llevError, $msg;
76	};	141	};
77	}	142	}
78		143
79	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
80	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
84	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
85		150
86	# we bless all objects into (empty) derived classes to force a method lookup	151	# we bless all objects into (empty) derived classes to force a method lookup
87	# within the Safe compartment.	152	# within the Safe compartment.
88	for my $pkg (qw(	153	for my $pkg (qw(
89	cf::global	154	cf::global cf::attachable
90	cf::object cf::object::player	155	cf::object cf::object::player
91	cf::client cf::player	156	cf::client cf::player
92	cf::arch cf::living	157	cf::arch cf::living
93	cf::map cf::party cf::region	158	cf::map cf::party cf::region
94	)) {	159	)) {
…		…
98		163
99	$Event::DIED = sub {	164	$Event::DIED = sub {
100	warn "error in event callback: @_";	165	warn "error in event callback: @_";
101	};	166	};
102		167
103	my %ext_pkg;
104	my @exts;
105	my @hook;
106
107	=head2 UTILITY FUNCTIONS	168	=head2 UTILITY FUNCTIONS
108		169
109	=over 4	170	=over 4
110		171
		172	=item dumpval $ref
		173
111	=cut	174	=cut
		175
		176	sub dumpval {
		177	eval {
		178	local $SIG{__DIE__};
		179	my $d;
		180	if (1) {
		181	$d = new Data::Dumper([$_[0]], ["*var"]);
		182	$d->Terse(1);
		183	$d->Indent(2);
		184	$d->Quotekeys(0);
		185	$d->Useqq(1);
		186	#$d->Bless(...);
		187	$d->Seen($_[1]) if @_ > 1;
		188	$d = $d->Dump();
		189	}
		190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		191	$d
		192	} || "[unable to dump $_[0]: '$@']";
		193	}
112		194
113	use JSON::Syck (); # TODO# replace by JSON::PC once working	195	use JSON::Syck (); # TODO# replace by JSON::PC once working
114		196
115	=item $ref = cf::from_json $json	197	=item $ref = cf::from_json $json
116		198
…		…
132	sub to_json($) {	214	sub to_json($) {
133	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
134	JSON::Syck::Dump $_[0]	216	JSON::Syck::Dump $_[0]
135	}	217	}
136		218
		219	=item cf::lock_wait $string
		220
		221	Wait until the given lock is available. See cf::lock_acquire.
		222
		223	=item my $lock = cf::lock_acquire $string
		224
		225	Wait until the given lock is available and then acquires it and returns
		226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		227	for example when the coroutine gets canceled), the lock is automatically
		228	returned.
		229
		230	Lock names should begin with a unique identifier (for example, cf::map::find
		231	uses map_find and cf::map::load uses map_load).
		232
		233	=cut
		234
		235	our %LOCK;
		236
		237	sub lock_wait($) {
		238	my ($key) = @_;
		239
		240	# wait for lock, if any
		241	while ($LOCK{$key}) {
		242	push @{ $LOCK{$key} }, $Coro::current;
		243	Coro::schedule;
		244	}
		245	}
		246
		247	sub lock_acquire($) {
		248	my ($key) = @_;
		249
		250	# wait, to be sure we are not locked
		251	lock_wait $key;
		252
		253	$LOCK{$key} = [];
		254
		255	Coro::guard {
		256	# wake up all waiters, to be on the safe side
		257	$_->ready for @{ delete $LOCK{$key} };
		258	}
		259	}
		260
		261	sub freeze_mainloop {
		262	return unless $TICK_WATCHER->is_active;
		263
		264	my $guard = Coro::guard {
		265	$TICK_WATCHER->start;
		266	$WRITE_RUNTIME_WATCHER->start;
		267	};
		268	$WRITE_RUNTIME_WATCHER->stop;
		269	$TICK_WATCHER->stop;
		270	$guard
		271	}
		272
		273	=item cf::async { BLOCK }
		274
		275	Currently the same as Coro::async_pool, meaning you cannot use
		276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
		278
		279	=cut
		280
		281	BEGIN { *async = \&Coro::async_pool }
		282
		283	=item cf::sync_job { BLOCK }
		284
		285	The design of crossfire+ requires that the main coro ($Coro::main) is
		286	always able to handle events or runnable, as crossfire+ is only partly
		287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		288
		289	If it must be done, put the blocking parts into C<sync_job>. This will run
		290	the given BLOCK in another coroutine while waiting for the result. The
		291	server will be frozen during this time, so the block should either finish
		292	fast or be very important.
		293
		294	=cut
		295
		296	sub sync_job(&) {
		297	my ($job) = @_;
		298
		299	if ($Coro::current == $Coro::main) {
		300	# this is the main coro, too bad, we have to block
		301	# till the operation succeeds, freezing the server :/
		302
		303	# TODO: use suspend/resume instead
		304	# (but this is cancel-safe)
		305	my $freeze_guard = freeze_mainloop;
		306
		307	my $busy = 1;
		308	my @res;
		309
		310	(async {
		311	@res = eval { $job->() };
		312	warn $@ if $@;
		313	undef $busy;
		314	})->prio (Coro::PRIO_MAX);
		315
		316	while ($busy) {
		317	Coro::cede or Event::one_event;
		318	}
		319
		320	wantarray ? @res : $res[0]
		321	} else {
		322	# we are in another coroutine, how wonderful, everything just works
		323
		324	$job->()
		325	}
		326	}
		327
		328	=item $coro = cf::async_ext { BLOCK }
		329
		330	Like async, but this coro is automatically being canceled when the
		331	extension calling this is being unloaded.
		332
		333	=cut
		334
		335	sub async_ext(&) {
		336	my $cb = shift;
		337
		338	my $coro = &Coro::async ($cb);
		339
		340	$coro->on_destroy (sub {
		341	delete $EXT_CORO{$coro+0};
		342	});
		343	$EXT_CORO{$coro+0} = $coro;
		344
		345	$coro
		346	}
		347
		348	sub write_runtime {
		349	my $runtime = cf::localdir . "/runtime";
		350
		351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		352	or return;
		353
		354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		356	and return;
		357
		358	aio_fsync $fh
		359	and return;
		360
		361	close $fh
		362	or return;
		363
		364	aio_rename "$runtime~", $runtime
		365	and return;
		366
		367	1
		368	}
		369
137	=back	370	=back
138		371
139	=cut	372	=cut
140		373
141	#############################################################################	374	#############################################################################
142		375
143	=head2 ATTACHABLE OBJECTS	376	=head2 ATTACHABLE OBJECTS
144		377
145	You can define and attach attachments to each "attachable" object in	378	Many objects in crossfire are so-called attachable objects. That means you can
146	crossfire+ (objects, players, clients, maps and the special "global"	379	attach callbacks/event handlers (a collection of which is called an "attachment")
		380	to it. All such attachable objects support the following methods.
		381
147	class). In the following description, CLASS can be any of C<global>,	382	In the following description, CLASS can be any of C<global>, C<object>
148	C<object> C<player>, C<client> or C<map>.	383	C<player>, C<client> or C<map> (i.e. the attachable objects in
		384	crossfire+).
149		385
150	=over 4	386	=over 4
151		387
		388	=item $attachable->attach ($attachment, key => $value...)
		389
		390	=item $attachable->detach ($attachment)
		391
		392	Attach/detach a pre-registered attachment to a specific object and give it
		393	the specified key/value pairs as arguments.
		394
		395	Example, attach a minesweeper attachment to the given object, making it a
		396	10x10 minesweeper game:
		397
		398	$obj->attach (minesweeper => width => 10, height => 10);
		399
		400	=item $bool = $attachable->attached ($name)
		401
		402	Checks wether the named attachment is currently attached to the object.
		403
		404	=item cf::CLASS->attach ...
		405
		406	=item cf::CLASS->detach ...
		407
		408	Define an anonymous attachment and attach it to all objects of the given
		409	CLASS. See the next function for an explanation of its arguments.
		410
		411	You can attach to global events by using the C<cf::global> class.
		412
		413	Example, log all player logins:
		414
		415	cf::player->attach (
		416	on_login => sub {
		417	my ($pl) = @_;
		418	...
		419	},
		420	);
		421
		422	Example, attach to the jeweler skill:
		423
		424	cf::object->attach (
		425	type => cf::SKILL,
		426	subtype => cf::SK_JEWELER,
		427	on_use_skill => sub {
		428	my ($sk, $ob, $part, $dir, $msg) = @_;
		429	...
		430	},
		431	);
		432
152	=item cf::CLASS::attachment $name, ...	433	=item cf::CLASS::attachment $name, ...
153		434
154	Register an attachment by name through which attachable objects can refer	435	Register an attachment by C<$name> through which attachable objects of the
155	to this attachment.	436	given CLASS can refer to this attachment.
156		437
157	=item $bool = $attachable->attached ($name)	438	Some classes such as crossfire maps and objects can specify attachments
		439	that are attached at load/instantiate time, thus the need for a name.
158		440
159	Checks wether the named attachment is currently attached to the object.
160
161	=item $attachable->attach ($attachment, key => $value...)
162
163	=item $attachable->detach ($attachment)
164
165	Attach/detach a pre-registered attachment either to a specific object
166	(C<$attachable>) or all objects of the given class (if C<$attachable> is a
167	class in a static method call).
168
169	You can attach to global events by using the C<cf::global> class.
170
171	These method calls expect any number of the following handler/hook	441	These calls expect any number of the following handler/hook descriptions:
172	descriptions:
173		442
174	=over 4	443	=over 4
175		444
176	=item prio => $number	445	=item prio => $number
177		446
…		…
203	package and register them. Only handlers for eevents supported by the	472	package and register them. Only handlers for eevents supported by the
204	object/class are recognised.	473	object/class are recognised.
205		474
206	=back	475	=back
207		476
		477	Example, define an attachment called "sockpuppet" that calls the given
		478	event handler when a monster attacks:
		479
		480	cf::object::attachment sockpuppet =>
		481	on_skill_attack => sub {
		482	my ($self, $victim) = @_;
		483	...
		484	}
		485	}
		486
		487	=item $attachable->valid
		488
		489	Just because you have a perl object does not mean that the corresponding
		490	C-level object still exists. If you try to access an object that has no
		491	valid C counterpart anymore you get an exception at runtime. This method
		492	can be used to test for existence of the C object part without causing an
		493	exception.
		494
208	=cut	495	=cut
209		496
210	# the following variables are defined in .xs and must not be re-created	497	# the following variables are defined in .xs and must not be re-created
211	our @CB_GLOBAL = (); # registry for all global events	498	our @CB_GLOBAL = (); # registry for all global events
		499	our @CB_ATTACHABLE = (); # registry for all attachables
212	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	500	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
213	our @CB_PLAYER = ();	501	our @CB_PLAYER = ();
214	our @CB_CLIENT = ();	502	our @CB_CLIENT = ();
215	our @CB_TYPE = (); # registry for type (cf-object class) based events	503	our @CB_TYPE = (); # registry for type (cf-object class) based events
216	our @CB_MAP = ();	504	our @CB_MAP = ();
217		505
218	my %attachment;	506	my %attachment;
219		507
220	sub _attach_cb($$$$) {	508	sub _attach_cb($$$$) {
221	my ($registry, $event, $prio, $cb) = @_;	509	my ($registry, $event, $prio, $cb) = @_;
…		…
226		514
227	@{$registry->[$event]} = sort	515	@{$registry->[$event]} = sort
228	{ $a->[0] cmp $b->[0] }	516	{ $a->[0] cmp $b->[0] }
229	@{$registry->[$event] || []}, $cb;	517	@{$registry->[$event] || []}, $cb;
230	}	518	}
		519
		520	# hack
		521	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
231		522
232	# attach handles attaching event callbacks	523	# attach handles attaching event callbacks
233	# the only thing the caller has to do is pass the correct	524	# the only thing the caller has to do is pass the correct
234	# registry (== where the callback attaches to).	525	# registry (== where the callback attaches to).
235	sub _attach {	526	sub _attach {
…		…
237		528
238	my $object_type;	529	my $object_type;
239	my $prio = 0;	530	my $prio = 0;
240	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	531	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
241		532
		533	#TODO: get rid of this hack
		534	if ($attachable_klass{$klass}) {
		535	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		536	}
		537
242	while (@arg) {	538	while (@arg) {
243	my $type = shift @arg;	539	my $type = shift @arg;
244		540
245	if ($type eq "prio") {	541	if ($type eq "prio") {
246	$prio = shift @arg;	542	$prio = shift @arg;
…		…
321	my ($obj, $name) = @_;	617	my ($obj, $name) = @_;
322		618
323	exists $obj->{_attachment}{$name}	619	exists $obj->{_attachment}{$name}
324	}	620	}
325		621
326	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	622	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
327	eval "#line " . __LINE__ . " 'cf.pm'	623	eval "#line " . __LINE__ . " 'cf.pm'
328	sub cf::\L$klass\E::_attach_registry {	624	sub cf::\L$klass\E::_attach_registry {
329	(\\\@CB_$klass, KLASS_$klass)	625	(\\\@CB_$klass, KLASS_$klass)
330	}	626	}
331		627
…		…
367	}	663	}
368		664
369	0	665	0
370	}	666	}
371		667
372	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	668	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
373		669
374	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
375
376	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
377
378	=item $bool = $client->invoke (EVENT_CLIENT_XXX, ...)	670	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
379		671
380	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
381
382	Generate a global/object/player/map-specific event with the given arguments.	672	Generate an object-specific event with the given arguments.
383		673
384	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be	674	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
385	removed in future versions), and there is no public API to access override	675	removed in future versions), and there is no public API to access override
386	results (if you must, access C<@cf::invoke_results> directly).	676	results (if you must, access C<@cf::invoke_results> directly).
387		677
388	=back	678	=back
389		679
390	=cut	680	=cut
391		681
392	#############################################################################	682	#############################################################################
393
394	=head2 METHODS VALID FOR ALL ATTACHABLE OBJECTS
395
396	Attachable objects includes objects, players, clients and maps.
397
398	=over 4
399
400	=item $object->valid
401
402	Just because you have a perl object does not mean that the corresponding
403	C-level object still exists. If you try to access an object that has no
404	valid C counterpart anymore you get an exception at runtime. This method
405	can be used to test for existence of the C object part without causing an
406	exception.
407
408	=back
409
410	=cut
411
412	#############################################################################
413	# object support	683	# object support
414		684
415	sub instantiate {
416	my ($obj, $data) = @_;
417
418	$data = from_json $data;
419
420	for (@$data) {
421	my ($name, $args) = @$_;
422
423	$obj->attach ($name, %{$args || {} });
424	}
425	}
426
427	# basically do the same as instantiate, without calling instantiate
428	sub reattach {	685	sub reattach {
		686	# basically do the same as instantiate, without calling instantiate
429	my ($obj) = @_;	687	my ($obj) = @_;
		688
430	my $registry = $obj->registry;	689	my $registry = $obj->registry;
431		690
432	@$registry = ();	691	@$registry = ();
433		692
434	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	693	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
443	warn "object uses attachment '$name' that is not available, postponing.\n";	702	warn "object uses attachment '$name' that is not available, postponing.\n";
444	}	703	}
445	}	704	}
446	}	705	}
447		706
448	sub object_freezer_save {	707	cf::attachable->attach (
449	my ($filename, $rdata, $objs) = @_;
450
451	if (length $$rdata) {
452	warn sprintf "saving %s (%d,%d)\n",
453	$filename, length $$rdata, scalar @$objs;
454
455	if (open my $fh, ">:raw", "$filename~") {
456	chmod SAVE_MODE, $fh;
457	syswrite $fh, $$rdata;
458	close $fh;
459
460	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
461	chmod SAVE_MODE, $fh;
462	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
463	close $fh;
464	rename "$filename.pst~", "$filename.pst";
465	} else {
466	unlink "$filename.pst";
467	}
468
469	rename "$filename~", $filename;
470	} else {
471	warn "FATAL: $filename~: $!\n";
472	}
473	} else {
474	unlink $filename;
475	unlink "$filename.pst";
476	}
477	}
478
479	sub object_freezer_as_string {
480	my ($rdata, $objs) = @_;
481
482	use Data::Dumper;
483
484	$$rdata . Dumper $objs
485	}
486
487	sub object_thawer_load {
488	my ($filename) = @_;
489
490	local $/;
491
492	my $av;
493
494	#TODO: use sysread etc.
495	if (open my $data, "<:raw:perlio", $filename) {
496	$data = <$data>;
497	if (open my $pst, "<:raw:perlio", "$filename.pst") {
498	$av = eval { (Storable::thaw <$pst>)->{objs} };
499	}
500	return ($data, $av);
501	}
502
503	()
504	}
505
506	cf::object->attach (
507	prio => -1000000,	708	prio => -1000000,
		709	on_instantiate => sub {
		710	my ($obj, $data) = @_;
		711
		712	$data = from_json $data;
		713
		714	for (@$data) {
		715	my ($name, $args) = @$_;
		716
		717	$obj->attach ($name, %{$args || {} });
		718	}
		719	},
		720	on_reattach => \&reattach,
508	on_clone => sub {	721	on_clone => sub {
509	my ($src, $dst) = @_;	722	my ($src, $dst) = @_;
510		723
511	@{$dst->registry} = @{$src->registry};	724	@{$dst->registry} = @{$src->registry};
512		725
…		…
515	%{$dst->{_attachment}} = %{$src->{_attachment}}	728	%{$dst->{_attachment}} = %{$src->{_attachment}}
516	if exists $src->{_attachment};	729	if exists $src->{_attachment};
517	},	730	},
518	);	731	);
519		732
		733	sub object_freezer_save {
		734	my ($filename, $rdata, $objs) = @_;
		735
		736	sync_job {
		737	if (length $$rdata) {
		738	warn sprintf "saving %s (%d,%d)\n",
		739	$filename, length $$rdata, scalar @$objs;
		740
		741	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		742	chmod SAVE_MODE, $fh;
		743	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		744	aio_fsync $fh;
		745	close $fh;
		746
		747	if (@$objs) {
		748	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		749	chmod SAVE_MODE, $fh;
		750	my $data = Storable::nfreeze { version => 1, objs => $objs };
		751	aio_write $fh, 0, (length $data), $data, 0;
		752	aio_fsync $fh;
		753	close $fh;
		754	aio_rename "$filename.pst~", "$filename.pst";
		755	}
		756	} else {
		757	aio_unlink "$filename.pst";
		758	}
		759
		760	aio_rename "$filename~", $filename;
		761	} else {
		762	warn "FATAL: $filename~: $!\n";
		763	}
		764	} else {
		765	aio_unlink $filename;
		766	aio_unlink "$filename.pst";
		767	}
		768	}
		769	}
		770
		771	sub object_freezer_as_string {
		772	my ($rdata, $objs) = @_;
		773
		774	use Data::Dumper;
		775
		776	$$rdata . Dumper $objs
		777	}
		778
		779	sub object_thawer_load {
		780	my ($filename) = @_;
		781
		782	my ($data, $av);
		783
		784	(aio_load $filename, $data) >= 0
		785	or return;
		786
		787	unless (aio_stat "$filename.pst") {
		788	(aio_load "$filename.pst", $av) >= 0
		789	or return;
		790	$av = eval { (Storable::thaw $av)->{objs} };
		791	}
		792
		793	warn sprintf "loading %s (%d)\n",
		794	$filename, length $data, scalar @{$av || []};#d#
		795	return ($data, $av);
		796	}
		797
520	#############################################################################	798	#############################################################################
521	# command handling &c	799	# command handling &c
522		800
523	=item cf::register_command $name => \&callback($ob,$args);	801	=item cf::register_command $name => \&callback($ob,$args);
524		802
…		…
546	=cut	824	=cut
547		825
548	sub register_extcmd {	826	sub register_extcmd {
549	my ($name, $cb) = @_;	827	my ($name, $cb) = @_;
550		828
551	my $caller = caller;
552	#warn "registering extcmd '$name' to '$caller'";
553
554	$EXTCMD{$name} = [$cb, $caller];	829	$EXTCMD{$name} = $cb;
555	}	830	}
556		831
557	cf::player->attach (	832	cf::player->attach (
558	on_command => sub {	833	on_command => sub {
559	my ($pl, $name, $params) = @_;	834	my ($pl, $name, $params) = @_;
…		…
572		847
573	my $msg = eval { from_json $buf };	848	my $msg = eval { from_json $buf };
574		849
575	if (ref $msg) {	850	if (ref $msg) {
576	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	851	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
577	if (my %reply = $cb->[0]->($pl, $msg)) {	852	if (my %reply = $cb->($pl, $msg)) {
578	$pl->ext_reply ($msg->{msgid}, %reply);	853	$pl->ext_reply ($msg->{msgid}, %reply);
579	}	854	}
580	}	855	}
581	} else {	856	} else {
582	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	857	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
584		859
585	cf::override;	860	cf::override;
586	},	861	},
587	);	862	);
588		863
589	sub register {
590	my ($base, $pkg) = @_;
591
592	#TODO
593	}
594
595	sub load_extension {	864	sub load_extension {
596	my ($path) = @_;	865	my ($path) = @_;
597		866
598	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	867	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
599	my $base = $1;	868	my $base = $1;
600	my $pkg = $1;	869	my $pkg = $1;
601	$pkg =~ s/[^[:word:]]/_/g;	870	$pkg =~ s/[^[:word:]]/_/g;
602	$pkg = "ext::$pkg";	871	$pkg = "ext::$pkg";
603		872
604	warn "loading '$path' into '$pkg'\n";	873	warn "... loading '$path' into '$pkg'\n";
605		874
606	open my $fh, "<:utf8", $path	875	open my $fh, "<:utf8", $path
607	or die "$path: $!";	876	or die "$path: $!";
608		877
609	my $source =	878	my $source =
610	"package $pkg; use strict; use utf8;\n"	879	"package $pkg; use strict; use utf8;\n"
611	. "#line 1 \"$path\"\n{\n"	880	. "#line 1 \"$path\"\n{\n"
612	. (do { local $/; <$fh> })	881	. (do { local $/; <$fh> })
613	. "\n};\n1";	882	. "\n};\n1";
614		883
615	eval $source	884	unless (eval $source) {
616	or die $@ ? "$path: $@\n"	885	my $msg = $@ ? "$path: $@\n"
617	: "extension disabled.\n";	886	: "extension disabled.\n";
618		887	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
619	push @exts, $pkg;	888	warn $@;
620	$ext_pkg{$base} = $pkg;	889	warn "mandatory extension failed to load, exiting.\n";
621		890	exit 1;
622	# no strict 'refs';	891	}
623	# @{"$pkg\::ISA"} = ext::;	892	die $@;
624
625	register $base, $pkg;
626	}
627
628	sub unload_extension {
629	my ($pkg) = @_;
630
631	warn "removing extension $pkg\n";
632
633	# remove hooks
634	#TODO
635	# for my $idx (0 .. $#PLUGIN_EVENT) {
636	# delete $hook[$idx]{$pkg};
637	# }	893	}
638		894
639	# remove commands	895	push @EXTS, $pkg;
640	for my $name (keys %COMMAND) {
641	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
642
643	if (@cb) {
644	$COMMAND{$name} = \@cb;
645	} else {
646	delete $COMMAND{$name};
647	}
648	}
649
650	# remove extcmds
651	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
652	delete $EXTCMD{$name};
653	}
654
655	if (my $cb = $pkg->can ("unload")) {
656	eval {
657	$cb->($pkg);
658	1
659	} or warn "$pkg unloaded, but with errors: $@";
660	}
661
662	Symbol::delete_package $pkg;
663	}	896	}
664		897
665	sub load_extensions {	898	sub load_extensions {
666	for my $ext (<$LIBDIR/*.ext>) {	899	for my $ext (<$LIBDIR/*.ext>) {
667	next unless -r $ext;	900	next unless -r $ext;
…		…
671	} or warn "$ext not loaded: $@";	904	} or warn "$ext not loaded: $@";
672	}	905	}
673	}	906	}
674		907
675	#############################################################################	908	#############################################################################
676	# load/save/clean perl data associated with a map
677		909
678	*cf::mapsupport::on_clean = sub {	910	=head2 CORE EXTENSIONS
		911
		912	Functions and methods that extend core crossfire objects.
		913
		914	=cut
		915
		916	package cf::player;
		917
		918	use Coro::AIO;
		919
		920	=head3 cf::player
		921
		922	=over 4
		923
		924	=item cf::player::find $login
		925
		926	Returns the given player object, loading it if necessary (might block).
		927
		928	=cut
		929
		930	sub playerdir($) {
		931	cf::localdir
		932	. "/"
		933	. cf::playerdir
		934	. "/"
		935	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		936	}
		937
		938	sub path($) {
		939	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		940
		941	(playerdir $login) . "/$login.pl"
		942	}
		943
		944	sub find_active($) {
		945	$cf::PLAYER{$_[0]}
		946	and $cf::PLAYER{$_[0]}->active
		947	and $cf::PLAYER{$_[0]}
		948	}
		949
		950	sub exists($) {
		951	my ($login) = @_;
		952
		953	$cf::PLAYER{$login}
		954	or cf::sync_job { !aio_stat $login }
		955	}
		956
		957	sub find($) {
		958	return $cf::PLAYER{$_[0]} || do {
		959	my $login = $_[0];
		960
		961	my $guard = cf::lock_acquire "user_find:$login";
		962
		963	$cf::PLAYER{$_[0]} || do {
		964	my $pl = load_pl path $login
		965	or return;
		966	$cf::PLAYER{$login} = $pl
		967	}
		968	}
		969	}
		970
		971	sub save($) {
		972	my ($pl) = @_;
		973
		974	return if $pl->{deny_save};
		975
		976	my $path = path $pl;
		977	my $guard = cf::lock_acquire "user_save:$path";
		978
		979	return if $pl->{deny_save};
		980
		981	aio_mkdir playerdir $pl, 0770;
		982	$pl->{last_save} = $cf::RUNTIME;
		983
		984	$pl->save_pl ($path);
		985	Coro::cede;
		986	}
		987
		988	sub new($) {
		989	my ($login) = @_;
		990
		991	my $self = create;
		992
		993	$self->ob->name ($login);
		994	$self->{deny_save} = 1;
		995
		996	$cf::PLAYER{$login} = $self;
		997
		998	$self
		999	}
		1000
		1001	=item $pl->quit_character
		1002
		1003	Nukes the player without looking back. If logged in, the connection will
		1004	be destroyed. May block for a long time.
		1005
		1006	=cut
		1007
		1008	sub quit_character {
		1009	my ($pl) = @_;
		1010
		1011	$pl->{deny_save} = 1;
		1012	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1013
		1014	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1015	$pl->deactivate;
		1016	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1017	$pl->ns->destroy if $pl->ns;
		1018
		1019	my $path = playerdir $pl;
		1020	my $temp = "$path~$cf::RUNTIME~deleting~";
		1021	aio_rename $path, $temp;
		1022	delete $cf::PLAYER{$pl->ob->name};
		1023	$pl->destroy;
		1024	IO::AIO::aio_rmtree $temp;
		1025	}
		1026
		1027	=item cf::player::list_logins
		1028
		1029	Returns am arrayref of all valid playernames in the system, can take a
		1030	while and may block, so not sync_job-capable, ever.
		1031
		1032	=cut
		1033
		1034	sub list_logins {
		1035	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1036	or return [];
		1037
		1038	my @logins;
		1039
		1040	for my $login (@$dirs) {
		1041	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1042	aio_read $fh, 0, 512, my $buf, 0 or next;
		1043	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1044
		1045	utf8::decode $login;
		1046	push @logins, $login;
		1047	}
		1048
		1049	\@logins
		1050	}
		1051
		1052	=item $player->maps
		1053
		1054	Returns an arrayref of map paths that are private for this
		1055	player. May block.
		1056
		1057	=cut
		1058
		1059	sub maps($) {
		1060	my ($pl) = @_;
		1061
		1062	my $files = aio_readdir playerdir $pl
		1063	or return;
		1064
		1065	my @paths;
		1066
		1067	for (@$files) {
		1068	utf8::decode $_;
		1069	next if /\.(?:pl|pst)$/;
		1070	next unless /^$PATH_SEP/o;
		1071
		1072	s/\.map$//;
		1073	push @paths, "~" . $pl->ob->name . "/" . $_;
		1074	}
		1075
		1076	\@paths
		1077	}
		1078
		1079	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1080
		1081	Sends an ext reply to the player.
		1082
		1083	=cut
		1084
		1085	sub ext_reply($$$%) {
		1086	my ($self, $id, %msg) = @_;
		1087
		1088	$msg{msgid} = $id;
		1089
		1090	$self->send ("ext " . cf::to_json \%msg);
		1091	}
		1092
		1093	package cf;
		1094
		1095	=back
		1096
		1097
		1098	=head3 cf::map
		1099
		1100	=over 4
		1101
		1102	=cut
		1103
		1104	package cf::map;
		1105
		1106	use Fcntl;
		1107	use Coro::AIO;
		1108
		1109	use overload
		1110	'""' => \&as_string;
		1111
		1112	our $MAX_RESET = 3600;
		1113	our $DEFAULT_RESET = 3000;
		1114
		1115	sub generate_random_map {
		1116	my ($self, $rmp) = @_;
		1117
		1118	# mit "rum" bekleckern, nicht
		1119	$self->_create_random_map (
		1120	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1121	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1122	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1123	$rmp->{exit_on_final_map},
		1124	$rmp->{xsize}, $rmp->{ysize},
		1125	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1126	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1127	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1128	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1129	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1130	(cf::region::find $rmp->{region}), $rmp->{custom}
		1131	)
		1132	}
		1133
		1134	sub register {
		1135	my (undef, $regex) = @_;
		1136	my $pkg = caller;
		1137
		1138	no strict;
		1139	push @{"$pkg\::ISA"}, __PACKAGE__;
		1140
		1141	$EXT_MAP{$pkg} = qr<$regex>;
		1142	}
		1143
		1144	# also paths starting with '/'
		1145	$EXT_MAP{"cf::map"} = qr{^(?=/)};
		1146
		1147	sub normalise {
		1148	my ($path, $base) = @_;
		1149
		1150	# map plan:
		1151	#
		1152	# /! non-realised random map exit (special hack!)
		1153	# {... are special paths that are not being touched
		1154	# ?xxx/... are special absolute paths
		1155	# ?random/... random maps
		1156	# /... normal maps
		1157	# ~user/... per-player map of a specific user
		1158
		1159	$path =~ s/$PATH_SEP/\//go;
		1160
		1161	# treat it as relative path if it starts with
		1162	# something that looks reasonable
		1163	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1164	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1165
		1166	$base =~ s{[^/]+/?$}{};
		1167	$path = "$base/$path";
		1168	}
		1169
		1170	for ($path) {
		1171	redo if s{//}{/};
		1172	redo if s{/\.?/}{/};
		1173	redo if s{/[^/]+/\.\./}{/};
		1174	}
		1175
		1176	$path
		1177	}
		1178
		1179	sub new_from_path {
		1180	my (undef, $path, $base) = @_;
		1181
		1182	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1183
		1184	$path = normalise $path, $base;
		1185
		1186	for my $pkg (keys %EXT_MAP) {
		1187	if ($path =~ $EXT_MAP{$pkg}) {
		1188	my $self = bless cf::map::new, $pkg;
		1189	$self->{path} = $path; $self->path ($path);
		1190	$self->init; # pass $1 etc.
		1191	return $self;
		1192	}
		1193	}
		1194
		1195	Carp::carp "unable to resolve path '$path'.";
		1196	()
		1197	}
		1198
		1199	sub init {
		1200	my ($self) = @_;
		1201
		1202	$self
		1203	}
		1204
		1205	sub as_string {
		1206	my ($self) = @_;
		1207
		1208	"$self->{path}"
		1209	}
		1210
		1211	# the displayed name, this is a one way mapping
		1212	sub visible_name {
		1213	&as_string
		1214	}
		1215
		1216	# the original (read-only) location
		1217	sub load_path {
		1218	my ($self) = @_;
		1219
		1220	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1221	}
		1222
		1223	# the temporary/swap location
		1224	sub save_path {
		1225	my ($self) = @_;
		1226
		1227	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1228	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1229	}
		1230
		1231	# the unique path, undef == no special unique path
		1232	sub uniq_path {
		1233	my ($self) = @_;
		1234
		1235	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1236	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1237	}
		1238
		1239	# and all this just because we cannot iterate over
		1240	# all maps in C++...
		1241	sub change_all_map_light {
		1242	my ($change) = @_;
		1243
		1244	$_->change_map_light ($change)
		1245	for grep $_->outdoor, values %cf::MAP;
		1246	}
		1247
		1248	sub unlink_save {
		1249	my ($self) = @_;
		1250
		1251	utf8::encode (my $save = $self->save_path);
		1252	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
		1253	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
		1254	}
		1255
		1256	sub load_header_from($) {
		1257	my ($self, $path) = @_;
		1258
		1259	utf8::encode $path;
		1260	aio_open $path, O_RDONLY, 0
		1261	or return;
		1262
		1263	$self->_load_header ($path)
		1264	or return;
		1265
		1266	$self->{load_path} = $path;
		1267
		1268	1
		1269	}
		1270
		1271	sub load_orig {
		1272	my ($self) = @_;
		1273
		1274	$self->load_header_from ($self->load_path)
		1275	}
		1276
		1277	sub load_temp {
		1278	my ($self) = @_;
		1279
		1280	$self->load_header_from ($self->save_path)
		1281	}
		1282
		1283	sub load_header {
		1284	my ($self) = @_;
		1285
		1286	if ($self->load_temp) {
		1287	$self->last_access ((delete $self->{last_access})
		1288	|| $cf::RUNTIME); #d#
		1289	# safety
		1290	$self->{instantiate_time} = $cf::RUNTIME
		1291	if $self->{instantiate_time} > $cf::RUNTIME;
		1292	} else {
		1293	$self->load_orig
		1294	or return;
		1295
		1296	$self->{load_original} = 1;
		1297	$self->{instantiate_time} = $cf::RUNTIME;
		1298	$self->last_access ($cf::RUNTIME);
		1299	$self->instantiate;
		1300	}
		1301
		1302	1
		1303	}
		1304
		1305	sub find;
		1306	sub find {
		1307	my ($path, $origin) = @_;
		1308
		1309	$path = normalise $path, $origin && $origin->path;
		1310
		1311	cf::lock_wait "map_find:$path";
		1312
		1313	$cf::MAP{$path} || do {
		1314	my $guard = cf::lock_acquire "map_find:$path";
		1315	my $map = new_from_path cf::map $path
		1316	or return;
		1317
		1318	$map->{last_save} = $cf::RUNTIME;
		1319
		1320	$map->load_header
		1321	or return;
		1322
		1323	if ($map->should_reset) {
		1324	$map->reset;
		1325	undef $guard;
		1326	$map = find $path
		1327	or return;
		1328	}
		1329
		1330	$cf::MAP{$path} = $map
		1331	}
		1332	}
		1333
		1334	sub load {
		1335	my ($self) = @_;
		1336
		1337	my $path = $self->{path};
		1338	my $guard = cf::lock_acquire "map_load:$path";
		1339
		1340	return if $self->in_memory != cf::MAP_SWAPPED;
		1341
		1342	$self->in_memory (cf::MAP_LOADING);
		1343
		1344	$self->alloc;
		1345	$self->_load_objects ($self->{load_path}, 1)
		1346	or return;
		1347
		1348	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1349	if delete $self->{load_original};
		1350
		1351	if (my $uniq = $self->uniq_path) {
		1352	utf8::encode $uniq;
		1353	if (aio_open $uniq, O_RDONLY, 0) {
		1354	$self->clear_unique_items;
		1355	$self->_load_objects ($uniq, 0);
		1356	}
		1357	}
		1358
		1359	Coro::cede;
		1360
		1361	# now do the right thing for maps
		1362	$self->link_multipart_objects;
		1363
		1364	unless ($self->{deny_activate}) {
		1365	$self->decay_objects;
		1366	$self->fix_auto_apply;
		1367	$self->update_buttons;
		1368	Coro::cede;
		1369	$self->set_darkness_map;
		1370	$self->difficulty ($self->estimate_difficulty)
		1371	unless $self->difficulty;
		1372	Coro::cede;
		1373	$self->activate;
		1374	}
		1375
		1376	$self->in_memory (cf::MAP_IN_MEMORY);
		1377	}
		1378
		1379	sub customise_for {
		1380	my ($self, $ob) = @_;
		1381
		1382	return find "~" . $ob->name . "/" . $self->{path}
		1383	if $self->per_player;
		1384
		1385	$self
		1386	}
		1387
		1388	# find and load all maps in the 3x3 area around a map
		1389	sub load_diag {
679	my ($map) = @_;	1390	my ($map) = @_;
680		1391
681	my $path = $map->tmpname;	1392	my @diag; # diagonal neighbours
682	defined $path or return;
683		1393
684	unlink "$path.pst";	1394	for (0 .. 3) {
		1395	my $neigh = $map->tile_path ($_)
		1396	or next;
		1397	$neigh = find $neigh, $map
		1398	or next;
		1399	$neigh->load;
		1400
		1401	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1402	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1403	}
		1404
		1405	for (@diag) {
		1406	my $neigh = find @$_
		1407	or next;
		1408	$neigh->load;
		1409	}
		1410	}
		1411
		1412	sub find_sync {
		1413	my ($path, $origin) = @_;
		1414
		1415	cf::sync_job { find $path, $origin }
		1416	}
		1417
		1418	sub do_load_sync {
		1419	my ($map) = @_;
		1420
		1421	cf::sync_job { $map->load };
		1422	}
		1423
		1424	our %MAP_PREFETCH;
		1425	our $MAP_PREFETCHER = Coro::async {
		1426	while () {
		1427	for my $path (keys %MAP_PREFETCH) {
		1428	my $map = find $path
		1429	or next;
		1430	$map->load;
		1431
		1432	delete $MAP_PREFETCH{$path};
		1433	}
		1434	Coro::schedule;
		1435	}
685	};	1436	};
686		1437
687	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1438	sub find_async {
		1439	my ($path, $origin) = @_;
688		1440
689	#############################################################################	1441	$path = normalise $path, $origin && $origin->{path};
690	# load/save perl data associated with player->ob objects
691		1442
692	sub all_objects(@) {	1443	if (my $map = $cf::MAP{$path}) {
693	@_, map all_objects ($_->inv), @_	1444	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
694	}
695
696	# TODO: compatibility cruft, remove when no longer needed
697	cf::player->attach (
698	on_load => sub {
699	my ($pl, $path) = @_;
700
701	for my $o (all_objects $pl->ob) {
702	if (my $value = $o->get_ob_key_value ("_perl_data")) {
703	$o->set_ob_key_value ("_perl_data");
704
705	%$o = %{ Storable::thaw pack "H*", $value };
706	}
707	}
708	},	1445	}
709	);
710		1446
711	#############################################################################	1447	$MAP_PREFETCH{$path} = 0;
		1448	$MAP_PREFETCHER->ready;
712		1449
713	=head2 CORE EXTENSIONS	1450	()
		1451	}
714		1452
715	Functions and methods that extend core crossfire objects.	1453	sub save {
		1454	my ($self) = @_;
		1455
		1456	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1457
		1458	$self->{last_save} = $cf::RUNTIME;
		1459
		1460	return unless $self->dirty;
		1461
		1462	my $save = $self->save_path; utf8::encode $save;
		1463	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1464
		1465	$self->{load_path} = $save;
		1466
		1467	return if $self->{deny_save};
		1468
		1469	local $self->{last_access} = $self->last_access;#d#
		1470
		1471	cf::async {
		1472	$_->contr->save for $self->players;
		1473	};
		1474
		1475	if ($uniq) {
		1476	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1477	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1478	} else {
		1479	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1480	}
		1481	}
		1482
		1483	sub swap_out {
		1484	my ($self) = @_;
		1485
		1486	# save first because save cedes
		1487	$self->save;
		1488
		1489	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1490
		1491	return if $self->players;
		1492	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1493	return if $self->{deny_save};
		1494
		1495	$self->clear;
		1496	$self->in_memory (cf::MAP_SWAPPED);
		1497	}
		1498
		1499	sub reset_at {
		1500	my ($self) = @_;
		1501
		1502	# TODO: safety, remove and allow resettable per-player maps
		1503	return 1e99 if $self->isa ("ext::map_per_player");
		1504	return 1e99 if $self->{deny_reset};
		1505
		1506	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1507	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1508
		1509	$time + $to
		1510	}
		1511
		1512	sub should_reset {
		1513	my ($self) = @_;
		1514
		1515	$self->reset_at <= $cf::RUNTIME
		1516	}
		1517
		1518	sub rename {
		1519	my ($self, $new_path) = @_;
		1520
		1521	normalise $new_path;
		1522
		1523	$self->unlink_save;
		1524
		1525	delete $cf::MAP{$self->path};
		1526	$self->{path} = $new_path; $self->path ($self->{path});
		1527	$cf::MAP{$self->path} = $self;
		1528
		1529	$self->save;
		1530	}
		1531
		1532	sub reset {
		1533	my ($self) = @_;
		1534
		1535	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1536
		1537	return if $self->players;
		1538	return if $self->isa ("ext::map_per_player");#d#
		1539
		1540	warn "resetting map ", $self->path;#d#
		1541
		1542	delete $cf::MAP{$self->path};
		1543
		1544	$self->in_memory (cf::MAP_SWAPPED);
		1545	$self->clear;
		1546
		1547	$_->clear_links_to ($self) for values %cf::MAP;
		1548
		1549	$self->unlink_save;
		1550	$self->destroy;
		1551	}
		1552
		1553	my $nuke_counter = "aaaa";
		1554
		1555	sub nuke {
		1556	my ($self) = @_;
		1557
		1558	$self->{deny_save} = 1;
		1559	$self->reset_timeout (1);
		1560	$self->rename ("{nuke}/" . ($nuke_counter++));
		1561	$self->reset; # polite request, might not happen
		1562	}
		1563
		1564	=item cf::map::unique_maps
		1565
		1566	Returns an arrayref of paths of all shared maps that have
		1567	instantiated unique items. May block.
		1568
		1569	=cut
		1570
		1571	sub unique_maps() {
		1572	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1573	or return;
		1574
		1575	my @paths;
		1576
		1577	for (@$files) {
		1578	utf8::decode $_;
		1579	next if /\.pst$/;
		1580	next unless /^$PATH_SEP/o;
		1581
		1582	s/\.map$//;
		1583	push @paths, $_;
		1584	}
		1585
		1586	\@paths
		1587	}
		1588
		1589	package cf;
		1590
		1591	=back
		1592
		1593	=head3 cf::object
		1594
		1595	=cut
		1596
		1597	package cf::object;
716		1598
717	=over 4	1599	=over 4
718		1600
719	=item cf::player::exists $login	1601	=item $ob->inv_recursive
720		1602
721	Returns true when the given account exists.	1603	Returns the inventory of the object _and_ their inventories, recursively.
722		1604
723	=cut	1605	=cut
724		1606
725	sub cf::player::exists($) {	1607	sub inv_recursive_;
726	cf::player::find $_[0]	1608	sub inv_recursive_ {
727	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1609	map { $_, inv_recursive_ $_->inv } @_
728	}	1610	}
		1611
		1612	sub inv_recursive {
		1613	inv_recursive_ inv $_[0]
		1614	}
		1615
		1616	package cf;
		1617
		1618	=back
		1619
		1620	=head3 cf::object::player
		1621
		1622	=over 4
729		1623
730	=item $player_object->reply ($npc, $msg[, $flags])	1624	=item $player_object->reply ($npc, $msg[, $flags])
731		1625
732	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1626	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
733	can be C<undef>. Does the right thing when the player is currently in a	1627	can be C<undef>. Does the right thing when the player is currently in a
…		…
735		1629
736	=cut	1630	=cut
737		1631
738	# rough implementation of a future "reply" method that works	1632	# rough implementation of a future "reply" method that works
739	# with dialog boxes.	1633	# with dialog boxes.
		1634	#TODO: the first argument must go, split into a $npc->reply_to ( method
740	sub cf::object::player::reply($$$;$) {	1635	sub cf::object::player::reply($$$;$) {
741	my ($self, $npc, $msg, $flags) = @_;	1636	my ($self, $npc, $msg, $flags) = @_;
742		1637
743	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1638	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
744		1639
…		…
748	$msg = $npc->name . " says: $msg" if $npc;	1643	$msg = $npc->name . " says: $msg" if $npc;
749	$self->message ($msg, $flags);	1644	$self->message ($msg, $flags);
750	}	1645	}
751	}	1646	}
752		1647
753	=item $player->ext_reply ($msgid, $msgtype, %msg)
754
755	Sends an ext reply to the player.
756
757	=cut
758
759	sub cf::player::ext_reply($$$%) {
760	my ($self, $id, %msg) = @_;
761
762	$msg{msgid} = $id;
763
764	$self->send ("ext " . to_json \%msg);
765	}
766
767	=item $player_object->may ("access")	1648	=item $player_object->may ("access")
768		1649
769	Returns wether the given player is authorized to access resource "access"	1650	Returns wether the given player is authorized to access resource "access"
770	(e.g. "command_wizcast").	1651	(e.g. "command_wizcast").
771		1652
…		…
778	(ref $cf::CFG{"may_$access"}	1659	(ref $cf::CFG{"may_$access"}
779	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1660	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
780	: $cf::CFG{"may_$access"})	1661	: $cf::CFG{"may_$access"})
781	}	1662	}
782		1663
783	=cut	1664	=item $player_object->enter_link
784		1665
785	#############################################################################	1666	Freezes the player and moves him/her to a special map (C<{link}>).
		1667
		1668	The player should be reasonably safe there for short amounts of time. You
		1669	I<MUST> call C<leave_link> as soon as possible, though.
		1670
		1671	Will never block.
		1672
		1673	=item $player_object->leave_link ($map, $x, $y)
		1674
		1675	Moves the player out of the special C<{link}> map onto the specified
		1676	map. If the map is not valid (or omitted), the player will be moved back
		1677	to the location he/she was before the call to C<enter_link>, or, if that
		1678	fails, to the emergency map position.
		1679
		1680	Might block.
		1681
		1682	=cut
		1683
		1684	sub link_map {
		1685	unless ($LINK_MAP) {
		1686	$LINK_MAP = cf::map::find "{link}"
		1687	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1688	$LINK_MAP->load;
		1689	}
		1690
		1691	$LINK_MAP
		1692	}
		1693
		1694	sub cf::object::player::enter_link {
		1695	my ($self) = @_;
		1696
		1697	$self->deactivate_recursive;
		1698
		1699	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1700
		1701	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1702	if $self->map;
		1703
		1704	$self->enter_map ($LINK_MAP || link_map, 20, 20);
		1705	}
		1706
		1707	sub cf::object::player::leave_link {
		1708	my ($self, $map, $x, $y) = @_;
		1709
		1710	my $link_pos = delete $self->{_link_pos};
		1711
		1712	unless ($map) {
		1713	# restore original map position
		1714	($map, $x, $y) = @{ $link_pos || [] };
		1715	$map = cf::map::find $map;
		1716
		1717	unless ($map) {
		1718	($map, $x, $y) = @$EMERGENCY_POSITION;
		1719	$map = cf::map::find $map
		1720	or die "FATAL: cannot load emergency map\n";
		1721	}
		1722	}
		1723
		1724	($x, $y) = (-1, -1)
		1725	unless (defined $x) && (defined $y);
		1726
		1727	# use -1 or undef as default coordinates, not 0, 0
		1728	($x, $y) = ($map->enter_x, $map->enter_y)
		1729	if $x <=0 && $y <= 0;
		1730
		1731	$map->load;
		1732	$map->load_diag;
		1733
		1734	return unless $self->contr->active;
		1735	$self->activate_recursive;
		1736	$self->enter_map ($map, $x, $y);
		1737	}
		1738
		1739	cf::player->attach (
		1740	on_logout => sub {
		1741	my ($pl) = @_;
		1742
		1743	# abort map switching before logout
		1744	if ($pl->ob->{_link_pos}) {
		1745	cf::sync_job {
		1746	$pl->ob->leave_link
		1747	};
		1748	}
		1749	},
		1750	on_login => sub {
		1751	my ($pl) = @_;
		1752
		1753	# try to abort aborted map switching on player login :)
		1754	# should happen only on crashes
		1755	if ($pl->ob->{_link_pos}) {
		1756	$pl->ob->enter_link;
		1757	(async {
		1758	# we need this sleep as the login has a concurrent enter_exit running
		1759	# and this sleep increases chances of the player not ending up in scorn
		1760	$pl->ob->reply (undef,
		1761	"There was an internal problem at your last logout, "
		1762	. "the server will try to bring you to your intended destination in a second.",
		1763	cf::NDI_RED);
		1764	Coro::Timer::sleep 1;
		1765	$pl->ob->leave_link;
		1766	})->prio (2);
		1767	}
		1768	},
		1769	);
		1770
		1771	=item $player_object->goto ($path, $x, $y)
		1772
		1773	=cut
		1774
		1775	sub cf::object::player::goto {
		1776	my ($self, $path, $x, $y) = @_;
		1777
		1778	$self->enter_link;
		1779
		1780	(async {
		1781	my $map = cf::map::find $path;
		1782	$map = $map->customise_for ($self) if $map;
		1783
		1784	# warn "entering ", $map->path, " at ($x, $y)\n"
		1785	# if $map;
		1786
		1787	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1788
		1789	$self->leave_link ($map, $x, $y);
		1790	})->prio (1);
		1791	}
		1792
		1793	=item $player_object->enter_exit ($exit_object)
		1794
		1795	=cut
		1796
		1797	sub parse_random_map_params {
		1798	my ($spec) = @_;
		1799
		1800	my $rmp = { # defaults
		1801	xsize => 10,
		1802	ysize => 10,
		1803	};
		1804
		1805	for (split /\n/, $spec) {
		1806	my ($k, $v) = split /\s+/, $_, 2;
		1807
		1808	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1809	}
		1810
		1811	$rmp
		1812	}
		1813
		1814	sub prepare_random_map {
		1815	my ($exit) = @_;
		1816
		1817	# all this does is basically replace the /! path by
		1818	# a new random map path (?random/...) with a seed
		1819	# that depends on the exit object
		1820
		1821	my $rmp = parse_random_map_params $exit->msg;
		1822
		1823	if ($exit->map) {
		1824	$rmp->{region} = $exit->map->region_name;
		1825	$rmp->{origin_map} = $exit->map->path;
		1826	$rmp->{origin_x} = $exit->x;
		1827	$rmp->{origin_y} = $exit->y;
		1828	}
		1829
		1830	$rmp->{random_seed} ||= $exit->random_seed;
		1831
		1832	my $data = cf::to_json $rmp;
		1833	my $md5 = Digest::MD5::md5_hex $data;
		1834
		1835	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1836	aio_write $fh, 0, (length $data), $data, 0;
		1837
		1838	$exit->slaying ("?random/$md5");
		1839	$exit->msg (undef);
		1840	}
		1841	}
		1842
		1843	sub cf::object::player::enter_exit {
		1844	my ($self, $exit) = @_;
		1845
		1846	return unless $self->type == cf::PLAYER;
		1847
		1848	$self->enter_link;
		1849
		1850	(async {
		1851	$self->deactivate_recursive; # just to be sure
		1852	unless (eval {
		1853	prepare_random_map $exit
		1854	if $exit->slaying eq "/!";
		1855
		1856	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1857	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1858
		1859	1;
		1860	}) {
		1861	$self->message ("Something went wrong deep within the crossfire server. "
		1862	. "I'll try to bring you back to the map you were before. "
		1863	. "Please report this to the dungeon master!",
		1864	cf::NDI_UNIQUE | cf::NDI_RED);
		1865
		1866	warn "ERROR in enter_exit: $@";
		1867	$self->leave_link;
		1868	}
		1869	})->prio (1);
		1870	}
		1871
		1872	=head3 cf::client
		1873
		1874	=over 4
		1875
		1876	=item $client->send_drawinfo ($text, $flags)
		1877
		1878	Sends a drawinfo packet to the client. Circumvents output buffering so
		1879	should not be used under normal circumstances.
		1880
		1881	=cut
		1882
		1883	sub cf::client::send_drawinfo {
		1884	my ($self, $text, $flags) = @_;
		1885
		1886	utf8::encode $text;
		1887	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1888	}
		1889
		1890
		1891	=item $success = $client->query ($flags, "text", \&cb)
		1892
		1893	Queues a query to the client, calling the given callback with
		1894	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1895	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1896
		1897	Queries can fail, so check the return code. Or don't, as queries will become
		1898	reliable at some point in the future.
		1899
		1900	=cut
		1901
		1902	sub cf::client::query {
		1903	my ($self, $flags, $text, $cb) = @_;
		1904
		1905	return unless $self->state == ST_PLAYING
		1906	|| $self->state == ST_SETUP
		1907	|| $self->state == ST_CUSTOM;
		1908
		1909	$self->state (ST_CUSTOM);
		1910
		1911	utf8::encode $text;
		1912	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1913
		1914	$self->send_packet ($self->{query_queue}[0][0])
		1915	if @{ $self->{query_queue} } == 1;
		1916	}
		1917
		1918	cf::client->attach (
		1919	on_reply => sub {
		1920	my ($ns, $msg) = @_;
		1921
		1922	# this weird shuffling is so that direct followup queries
		1923	# get handled first
		1924	my $queue = delete $ns->{query_queue}
		1925	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1926
		1927	(shift @$queue)->[1]->($msg);
		1928
		1929	push @{ $ns->{query_queue} }, @$queue;
		1930
		1931	if (@{ $ns->{query_queue} } == @$queue) {
		1932	if (@$queue) {
		1933	$ns->send_packet ($ns->{query_queue}[0][0]);
		1934	} else {
		1935	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1936	}
		1937	}
		1938	},
		1939	);
		1940
		1941	=item $client->async (\&cb)
		1942
		1943	Create a new coroutine, running the specified callback. The coroutine will
		1944	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1945	or loss of connection).
		1946
		1947	=cut
		1948
		1949	sub cf::client::async {
		1950	my ($self, $cb) = @_;
		1951
		1952	my $coro = &Coro::async ($cb);
		1953
		1954	$coro->on_destroy (sub {
		1955	delete $self->{_coro}{$coro+0};
		1956	});
		1957
		1958	$self->{_coro}{$coro+0} = $coro;
		1959
		1960	$coro
		1961	}
		1962
		1963	cf::client->attach (
		1964	on_destroy => sub {
		1965	my ($ns) = @_;
		1966
		1967	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1968	},
		1969	);
		1970
		1971	=back
		1972
786		1973
787	=head2 SAFE SCRIPTING	1974	=head2 SAFE SCRIPTING
788		1975
789	Functions that provide a safe environment to compile and execute	1976	Functions that provide a safe environment to compile and execute
790	snippets of perl code without them endangering the safety of the server	1977	snippets of perl code without them endangering the safety of the server
…		…
942		2129
943	{	2130	{
944	my $path = cf::localdir . "/database.pst";	2131	my $path = cf::localdir . "/database.pst";
945		2132
946	sub db_load() {	2133	sub db_load() {
947	warn "loading database $path\n";#d# remove later
948	$DB = stat $path ? Storable::retrieve $path : { };	2134	$DB = stat $path ? Storable::retrieve $path : { };
949	}	2135	}
950		2136
951	my $pid;	2137	my $pid;
952		2138
953	sub db_save() {	2139	sub db_save() {
954	warn "saving database $path\n";#d# remove later
955	waitpid $pid, 0 if $pid;	2140	waitpid $pid, 0 if $pid;
956	if (0 == ($pid = fork)) {	2141	if (0 == ($pid = fork)) {
957	$DB->{_meta}{version} = 1;	2142	$DB->{_meta}{version} = 1;
958	Storable::nstore $DB, "$path~";	2143	Storable::nstore $DB, "$path~";
959	rename "$path~", $path;	2144	rename "$path~", $path;
…		…
1007	open my $fh, "<:utf8", cf::confdir . "/config"	2192	open my $fh, "<:utf8", cf::confdir . "/config"
1008	or return;	2193	or return;
1009		2194
1010	local $/;	2195	local $/;
1011	*CFG = YAML::Syck::Load <$fh>;	2196	*CFG = YAML::Syck::Load <$fh>;
		2197
		2198	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2199
		2200	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2201	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2202
		2203	if (exists $CFG{mlockall}) {
		2204	eval {
		2205	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2206	and die "WARNING: m(un)lockall failed: $!\n";
		2207	};
		2208	warn $@ if $@;
		2209	}
1012	}	2210	}
1013		2211
1014	sub main {	2212	sub main {
		2213	# we must not ever block the main coroutine
		2214	local $Coro::idle = sub {
		2215	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2216	async { Event::one_event };
		2217	};
		2218
1015	cfg_load;	2219	cfg_load;
1016	db_load;	2220	db_load;
1017	load_extensions;	2221	load_extensions;
1018	Event::loop;	2222	Event::loop;
1019	}	2223	}
1020		2224
1021	#############################################################################	2225	#############################################################################
1022	# initialisation	2226	# initialisation and cleanup
1023		2227
		2228	# install some emergency cleanup handlers
		2229	BEGIN {
		2230	for my $signal (qw(INT HUP TERM)) {
		2231	Event->signal (
		2232	data => WF_AUTOCANCEL,
		2233	signal => $signal,
		2234	cb => sub {
		2235	cf::cleanup "SIG$signal";
		2236	},
		2237	);
		2238	}
		2239	}
		2240
		2241	sub emergency_save() {
		2242	my $freeze_guard = cf::freeze_mainloop;
		2243
		2244	warn "enter emergency perl save\n";
		2245
		2246	cf::sync_job {
		2247	# use a peculiar iteration method to avoid tripping on perl
		2248	# refcount bugs in for. also avoids problems with players
		2249	# and maps saved/destroyed asynchronously.
		2250	warn "begin emergency player save\n";
		2251	for my $login (keys %cf::PLAYER) {
		2252	my $pl = $cf::PLAYER{$login} or next;
		2253	$pl->valid or next;
		2254	$pl->save;
		2255	}
		2256	warn "end emergency player save\n";
		2257
		2258	warn "begin emergency map save\n";
		2259	for my $path (keys %cf::MAP) {
		2260	my $map = $cf::MAP{$path} or next;
		2261	$map->valid or next;
		2262	$map->save;
		2263	}
		2264	warn "end emergency map save\n";
		2265	};
		2266
		2267	warn "leave emergency perl save\n";
		2268	}
		2269
1024	sub _perl_reload(&) {	2270	sub reload() {
1025	my ($msg) = @_;	2271	# can/must only be called in main
		2272	if ($Coro::current != $Coro::main) {
		2273	warn "can only reload from main coroutine\n";
		2274	return;
		2275	}
1026		2276
1027	$msg->("reloading...");	2277	warn "reloading...";
		2278
		2279	warn "freezing server";
		2280	my $guard = freeze_mainloop;
		2281	cf::emergency_save;
		2282
		2283	warn "sync database to disk";
		2284	cf::db_sync;
		2285	IO::AIO::flush;
1028		2286
1029	eval {	2287	eval {
		2288	# if anything goes wrong in here, we should simply crash as we already saved
		2289
1030	# cancel all watchers	2290	warn "cancel all watchers";
1031	for (Event::all_watchers) {	2291	for (Event::all_watchers) {
1032	$_->cancel if $_->data & WF_AUTOCANCEL;	2292	$_->cancel if $_->data & WF_AUTOCANCEL;
1033	}	2293	}
1034		2294
		2295	warn "cancel all extension coros";
		2296	$_->cancel for values %EXT_CORO;
		2297	%EXT_CORO = ();
		2298
		2299	warn "remove commands";
		2300	%COMMAND = ();
		2301
		2302	warn "remove ext commands";
		2303	%EXTCMD = ();
		2304
1035	# unload all extensions	2305	warn "unload/nuke all extensions";
1036	for (@exts) {	2306	for my $pkg (@EXTS) {
1037	$msg->("unloading <$_>");	2307	warn "... unloading $pkg";
1038	unload_extension $_;	2308
		2309	if (my $cb = $pkg->can ("unload")) {
		2310	eval {
		2311	$cb->($pkg);
		2312	1
		2313	} or warn "$pkg unloaded, but with errors: $@";
1039	}	2314	}
1040		2315
		2316	warn "... nuking $pkg";
		2317	Symbol::delete_package $pkg;
		2318	}
		2319
1041	# unload all modules loaded from $LIBDIR	2320	warn "unload all perl modules loaded from $LIBDIR";
1042	while (my ($k, $v) = each %INC) {	2321	while (my ($k, $v) = each %INC) {
1043	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2322	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1044		2323
1045	$msg->("removing <$k>");	2324	warn "removing <$k>";
1046	delete $INC{$k};	2325	delete $INC{$k};
1047		2326
1048	$k =~ s/\.pm$//;	2327	$k =~ s/\.pm$//;
1049	$k =~ s/\//::/g;	2328	$k =~ s/\//::/g;
1050		2329
…		…
1053	}	2332	}
1054		2333
1055	Symbol::delete_package $k;	2334	Symbol::delete_package $k;
1056	}	2335	}
1057		2336
1058	# sync database to disk
1059	cf::db_sync;
1060
1061	# get rid of safe::, as good as possible	2337	warn "get rid of safe::, as good as possible";
1062	Symbol::delete_package "safe::$_"	2338	Symbol::delete_package "safe::$_"
1063	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1064		2340
1065	# remove register_script_function callbacks
1066	# TODO
1067
1068	# unload cf.pm "a bit"	2341	warn "unload cf.pm \"a bit\"";
1069	delete $INC{"cf.pm"};	2342	delete $INC{"cf.pm"};
1070		2343
1071	# don't, removes xs symbols, too,	2344	# don't, removes xs symbols, too,
1072	# and global variables created in xs	2345	# and global variables created in xs
1073	#Symbol::delete_package __PACKAGE__;	2346	#Symbol::delete_package __PACKAGE__;
1074		2347
1075	# reload cf.pm
1076	$msg->("reloading cf.pm");	2348	warn "reloading cf.pm";
1077	require cf;	2349	require cf;
		2350	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1078		2351
1079	# load config and database again	2352	warn "load config and database again";
1080	cf::cfg_load;	2353	cf::cfg_load;
1081	cf::db_load;	2354	cf::db_load;
1082		2355
1083	# load extensions	2356	warn "load extensions";
1084	$msg->("load extensions");
1085	cf::load_extensions;	2357	cf::load_extensions;
1086		2358
1087	# reattach attachments to objects	2359	warn "reattach attachments to objects/players";
1088	$msg->("reattach");
1089	_global_reattach;	2360	_global_reattach;
		2361	warn "reattach attachments to maps";
		2362	reattach $_ for values %MAP;
1090	};	2363	};
1091	$msg->($@) if $@;
1092		2364
1093	$msg->("reloaded");	2365	if ($@) {
		2366	warn $@;
		2367	warn "error while reloading, exiting.";
		2368	exit 1;
		2369	}
		2370
		2371	warn "reloaded";
1094	};	2372	};
1095		2373
1096	sub perl_reload() {
1097	_perl_reload {
1098	warn $_[0];
1099	print "$_[0]\n";
1100	};
1101	}
1102
1103	register "<global>", __PACKAGE__;
1104
1105	register_command "perl-reload" => sub {	2374	register_command "reload" => sub {
1106	my ($who, $arg) = @_;	2375	my ($who, $arg) = @_;
1107		2376
1108	if ($who->flag (FLAG_WIZ)) {	2377	if ($who->flag (FLAG_WIZ)) {
1109	_perl_reload {	2378	$who->message ("start of reload.");
1110	warn $_[0];	2379	reload;
1111	$who->message ($_[0]);	2380	$who->message ("end of reload.");
1112	};
1113	}	2381	}
1114	};	2382	};
1115		2383
1116	unshift @INC, $LIBDIR;	2384	unshift @INC, $LIBDIR;
1117		2385
1118	$TICK_WATCHER = Event->timer (	2386	$TICK_WATCHER = Event->timer (
		2387	reentrant => 0,
1119	prio => 0,	2388	prio => 0,
1120	at => $NEXT_TICK || 1,	2389	at => $NEXT_TICK || $TICK,
1121	data => WF_AUTOCANCEL,	2390	data => WF_AUTOCANCEL,
1122	cb => sub {	2391	cb => sub {
		2392	$NOW = Event::time;
		2393
1123	cf::server_tick; # one server iteration	2394	cf::server_tick; # one server iteration
1124		2395	$RUNTIME += $TICK;
1125	my $NOW = Event::time;
1126	$NEXT_TICK += $TICK;	2396	$NEXT_TICK += $TICK;
1127		2397
		2398	$WAIT_FOR_TICK->broadcast;
		2399	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2400
1128	# if we are delayed by four ticks or more, skip them all	2401	# if we are delayed by four ticks or more, skip them all
1129	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2402	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1130		2403
1131	$TICK_WATCHER->at ($NEXT_TICK);	2404	$TICK_WATCHER->at ($NEXT_TICK);
1132	$TICK_WATCHER->start;	2405	$TICK_WATCHER->start;
1133	},	2406	},
1134	);	2407	);
1135		2408
1136	IO::AIO::max_poll_time $TICK * 0.2;	2409	IO::AIO::max_poll_time $TICK * 0.2;
1137		2410
		2411	$AIO_POLL_WATCHER = Event->io (
1138	Event->io (fd => IO::AIO::poll_fileno,	2412	fd => IO::AIO::poll_fileno,
1139	poll => 'r',	2413	poll => 'r',
1140	prio => 5,	2414	prio => 5,
1141	data => WF_AUTOCANCEL,	2415	data => WF_AUTOCANCEL,
1142	cb => \&IO::AIO::poll_cb);	2416	cb => \&IO::AIO::poll_cb,
		2417	);
		2418
		2419	$WRITE_RUNTIME_WATCHER = Event->timer (
		2420	data => WF_AUTOCANCEL,
		2421	after => 0,
		2422	interval => 10,
		2423	cb => sub {
		2424	(Coro::unblock_sub {
		2425	write_runtime
		2426	or warn "ERROR: unable to write runtime file: $!";
		2427	})->();
		2428	},
		2429	);
		2430
		2431	END { cf::emergency_save }
1143		2432
1144	1	2433	1
1145		2434

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