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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.93 by root, Thu Dec 21 22:41:35 2006 UTC vs.
Revision 1.119 by root, Tue Jan 2 08:26:42 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 Digest::MD5;
		21	use Fcntl;
10	use IO::AIO ();	22	use IO::AIO 2.31 ();
11	use YAML::Syck ();	23	use YAML::Syck ();
12	use Time::HiRes;	24	use Time::HiRes;
13	use Event;	25
14	$Event::Eval = 1; # no idea why this is required, but it is	26	use Event; $Event::Eval = 1; # no idea why this is required, but it is
15		27
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	29	$YAML::Syck::ImplicitUnicode = 1;
18		30
19	use strict;	31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
20		32
21	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		34
23	our %COMMAND = ();	35	our %COMMAND = ();
24	our %COMMAND_TIME = ();	36	our %COMMAND_TIME = ();
25	our %EXTCMD = ();	37	our %EXTCMD = ();
26		38
27	_init_vars;
28
29	our @EVENT;	39	our @EVENT;
30	our $LIBDIR = datadir . "/ext";	40	our $LIBDIR = datadir . "/ext";
31		41
32	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
33	our $TICK_WATCHER;	43	our $TICK_WATCHER;
34	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
35		46
36	our %CFG;	47	our %CFG;
37		48
38	our $UPTIME; $UPTIME ||= time;	49	our $UPTIME; $UPTIME ||= time;
		50	our $RUNTIME;
		51
		52	our %MAP; # all maps
		53	our $LINK_MAP; # the special {link} map
		54	our $FREEZE;
		55	our $RANDOM_MAPS = cf::localdir . "/random";
		56	our %EXT_CORO;
		57
		58	binmode STDOUT;
		59	binmode STDERR;
		60
		61	# read virtual server time, if available
		62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		63	open my $fh, "<", cf::localdir . "/runtime"
		64	or die "unable to read runtime file: $!";
		65	$RUNTIME = <$fh> + 0.;
		66	}
		67
		68	mkdir cf::localdir;
		69	mkdir cf::localdir . "/" . cf::playerdir;
		70	mkdir cf::localdir . "/" . cf::tmpdir;
		71	mkdir cf::localdir . "/" . cf::uniquedir;
		72	mkdir $RANDOM_MAPS;
		73
		74	# a special map that is always available
		75	our $LINK_MAP;
		76
		77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
39		78
40	#############################################################################	79	#############################################################################
41		80
42	=head2 GLOBAL VARIABLES	81	=head2 GLOBAL VARIABLES
43		82
44	=over 4	83	=over 4
45		84
46	=item $cf::UPTIME	85	=item $cf::UPTIME
47		86
48	The timestamp of the server start (so not actually an uptime).	87	The timestamp of the server start (so not actually an uptime).
		88
		89	=item $cf::RUNTIME
		90
		91	The time this server has run, starts at 0 and is increased by $cf::TICK on
		92	every server tick.
49		93
50	=item $cf::LIBDIR	94	=item $cf::LIBDIR
51		95
52	The perl library directory, where extensions and cf-specific modules can	96	The perl library directory, where extensions and cf-specific modules can
53	be found. It will be added to C<@INC> automatically.	97	be found. It will be added to C<@INC> automatically.
		98
		99	=item $cf::NOW
		100
		101	The time of the last (current) server tick.
54		102
55	=item $cf::TICK	103	=item $cf::TICK
56		104
57	The interval between server ticks, in seconds.	105	The interval between server ticks, in seconds.
58		106
…		…
66	=cut	114	=cut
67		115
68	BEGIN {	116	BEGIN {
69	*CORE::GLOBAL::warn = sub {	117	*CORE::GLOBAL::warn = sub {
70	my $msg = join "", @_;	118	my $msg = join "", @_;
		119	utf8::encode $msg;
		120
71	$msg .= "\n"	121	$msg .= "\n"
72	unless $msg =~ /\n$/;	122	unless $msg =~ /\n$/;
73		123
74	print STDERR "cfperl: $msg";
75	LOG llevError, "cfperl: $msg";	124	LOG llevError, "cfperl: $msg";
76	};	125	};
77	}	126	}
78		127
79	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
84	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
85		134
86	# we bless all objects into (empty) derived classes to force a method lookup	135	# we bless all objects into (empty) derived classes to force a method lookup
87	# within the Safe compartment.	136	# within the Safe compartment.
88	for my $pkg (qw(	137	for my $pkg (qw(
89	cf::global	138	cf::global cf::attachable
90	cf::object cf::object::player	139	cf::object cf::object::player
91	cf::client cf::player	140	cf::client cf::player
92	cf::arch cf::living	141	cf::arch cf::living
93	cf::map cf::party cf::region	142	cf::map cf::party cf::region
94	)) {	143	)) {
…		…
132	sub to_json($) {	181	sub to_json($) {
133	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
134	JSON::Syck::Dump $_[0]	183	JSON::Syck::Dump $_[0]
135	}	184	}
136		185
		186	=item cf::sync_job { BLOCK }
		187
		188	The design of crossfire+ requires that the main coro ($Coro::main) is
		189	always able to handle events or runnable, as crossfire+ is only partly
		190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		191
		192	If it must be done, put the blocking parts into C<sync_job>. This will run
		193	the given BLOCK in another coroutine while waiting for the result. The
		194	server will be frozen during this time, so the block should either finish
		195	fast or be very important.
		196
		197	=cut
		198
		199	sub sync_job(&) {
		200	my ($job) = @_;
		201
		202	if ($Coro::current == $Coro::main) {
		203	# this is the main coro, too bad, we have to block
		204	# till the operation succeeds, freezing the server :/
		205
		206	# TODO: use suspend/resume instead
		207	# (but this is cancel-safe)
		208	local $FREEZE = 1;
		209
		210	my $busy = 1;
		211	my @res;
		212
		213	(Coro::async {
		214	@res = eval { $job->() };
		215	warn $@ if $@;
		216	undef $busy;
		217	})->prio (Coro::PRIO_MAX);
		218
		219	while ($busy) {
		220	Coro::cede_notself;
		221	Event::one_event unless Coro::nready;
		222	}
		223
		224	wantarray ? @res : $res[0]
		225	} else {
		226	# we are in another coroutine, how wonderful, everything just works
		227
		228	$job->()
		229	}
		230	}
		231
		232	=item $coro = cf::coro { BLOCK }
		233
		234	Creates and returns a new coro. This coro is automcatially being canceled
		235	when the extension calling this is being unloaded.
		236
		237	=cut
		238
		239	sub coro(&) {
		240	my $cb = shift;
		241
		242	my $coro; $coro = async {
		243	eval {
		244	$cb->();
		245	};
		246	warn $@ if $@;
		247	};
		248
		249	$coro->on_destroy (sub {
		250	delete $EXT_CORO{$coro+0};
		251	});
		252	$EXT_CORO{$coro+0} = $coro;
		253
		254	$coro
		255	}
		256
		257	sub write_runtime {
		258	my $runtime = cf::localdir . "/runtime";
		259
		260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		261	or return;
		262
		263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		265	and return;
		266
		267	aio_fsync $fh
		268	and return;
		269
		270	close $fh
		271	or return;
		272
		273	aio_rename "$runtime~", $runtime
		274	and return;
		275
		276	1
		277	}
		278
137	=back	279	=back
138		280
139	=cut	281	=cut
140		282
141	#############################################################################	283	#############################################################################
142		284
		285	package cf::path;
		286
		287	sub new {
		288	my ($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
		403	#############################################################################
		404
143	=head2 ATTACHABLE OBJECTS	405	=head2 ATTACHABLE OBJECTS
144		406
145	You can define and attach attachments to each "attachable" object in	407	Many objects in crossfire are so-called attachable objects. That means you can
146	crossfire+ (objects, players, clients, maps and the special "global"	408	attach callbacks/event handlers (a collection of which is called an "attachment")
		409	to it. All such attachable objects support the following methods.
		410
147	class). In the following description, CLASS can be any of C<global>,	411	In the following description, CLASS can be any of C<global>, C<object>
148	C<object> C<player>, C<client> or C<map>.	412	C<player>, C<client> or C<map> (i.e. the attachable objects in
		413	crossfire+).
149		414
150	=over 4	415	=over 4
151		416
		417	=item $attachable->attach ($attachment, key => $value...)
		418
		419	=item $attachable->detach ($attachment)
		420
		421	Attach/detach a pre-registered attachment to a specific object and give it
		422	the specified key/value pairs as arguments.
		423
		424	Example, attach a minesweeper attachment to the given object, making it a
		425	10x10 minesweeper game:
		426
		427	$obj->attach (minesweeper => width => 10, height => 10);
		428
		429	=item $bool = $attachable->attached ($name)
		430
		431	Checks wether the named attachment is currently attached to the object.
		432
		433	=item cf::CLASS->attach ...
		434
		435	=item cf::CLASS->detach ...
		436
		437	Define an anonymous attachment and attach it to all objects of the given
		438	CLASS. See the next function for an explanation of its arguments.
		439
		440	You can attach to global events by using the C<cf::global> class.
		441
		442	Example, log all player logins:
		443
		444	cf::player->attach (
		445	on_login => sub {
		446	my ($pl) = @_;
		447	...
		448	},
		449	);
		450
		451	Example, attach to the jeweler skill:
		452
		453	cf::object->attach (
		454	type => cf::SKILL,
		455	subtype => cf::SK_JEWELER,
		456	on_use_skill => sub {
		457	my ($sk, $ob, $part, $dir, $msg) = @_;
		458	...
		459	},
		460	);
		461
152	=item cf::CLASS::attachment $name, ...	462	=item cf::CLASS::attachment $name, ...
153		463
154	Register an attachment by name through which attachable objects can refer	464	Register an attachment by C<$name> through which attachable objects of the
155	to this attachment.	465	given CLASS can refer to this attachment.
156		466
157	=item $bool = $attachable->attached ($name)	467	Some classes such as crossfire maps and objects can specify attachments
		468	that are attached at load/instantiate time, thus the need for a name.
158		469
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	470	These calls expect any number of the following handler/hook descriptions:
172	descriptions:
173		471
174	=over 4	472	=over 4
175		473
176	=item prio => $number	474	=item prio => $number
177		475
…		…
203	package and register them. Only handlers for eevents supported by the	501	package and register them. Only handlers for eevents supported by the
204	object/class are recognised.	502	object/class are recognised.
205		503
206	=back	504	=back
207		505
		506	Example, define an attachment called "sockpuppet" that calls the given
		507	event handler when a monster attacks:
		508
		509	cf::object::attachment sockpuppet =>
		510	on_skill_attack => sub {
		511	my ($self, $victim) = @_;
		512	...
		513	}
		514	}
		515
		516	=item $attachable->valid
		517
		518	Just because you have a perl object does not mean that the corresponding
		519	C-level object still exists. If you try to access an object that has no
		520	valid C counterpart anymore you get an exception at runtime. This method
		521	can be used to test for existence of the C object part without causing an
		522	exception.
		523
208	=cut	524	=cut
209		525
210	# the following variables are defined in .xs and must not be re-created	526	# the following variables are defined in .xs and must not be re-created
211	our @CB_GLOBAL = (); # registry for all global events	527	our @CB_GLOBAL = (); # registry for all global events
		528	our @CB_ATTACHABLE = (); # registry for all attachables
212	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	529	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
213	our @CB_PLAYER = ();	530	our @CB_PLAYER = ();
214	our @CB_CLIENT = ();	531	our @CB_CLIENT = ();
215	our @CB_TYPE = (); # registry for type (cf-object class) based events	532	our @CB_TYPE = (); # registry for type (cf-object class) based events
216	our @CB_MAP = ();	533	our @CB_MAP = ();
217		534
218	my %attachment;	535	my %attachment;
219		536
220	sub _attach_cb($$$$) {	537	sub _attach_cb($$$$) {
221	my ($registry, $event, $prio, $cb) = @_;	538	my ($registry, $event, $prio, $cb) = @_;
…		…
226		543
227	@{$registry->[$event]} = sort	544	@{$registry->[$event]} = sort
228	{ $a->[0] cmp $b->[0] }	545	{ $a->[0] cmp $b->[0] }
229	@{$registry->[$event] || []}, $cb;	546	@{$registry->[$event] || []}, $cb;
230	}	547	}
		548
		549	# hack
		550	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
231		551
232	# attach handles attaching event callbacks	552	# attach handles attaching event callbacks
233	# the only thing the caller has to do is pass the correct	553	# the only thing the caller has to do is pass the correct
234	# registry (== where the callback attaches to).	554	# registry (== where the callback attaches to).
235	sub _attach {	555	sub _attach {
…		…
237		557
238	my $object_type;	558	my $object_type;
239	my $prio = 0;	559	my $prio = 0;
240	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	560	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
241		561
		562	#TODO: get rid of this hack
		563	if ($attachable_klass{$klass}) {
		564	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		565	}
		566
242	while (@arg) {	567	while (@arg) {
243	my $type = shift @arg;	568	my $type = shift @arg;
244		569
245	if ($type eq "prio") {	570	if ($type eq "prio") {
246	$prio = shift @arg;	571	$prio = shift @arg;
…		…
321	my ($obj, $name) = @_;	646	my ($obj, $name) = @_;
322		647
323	exists $obj->{_attachment}{$name}	648	exists $obj->{_attachment}{$name}
324	}	649	}
325		650
326	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	651	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
327	eval "#line " . __LINE__ . " 'cf.pm'	652	eval "#line " . __LINE__ . " 'cf.pm'
328	sub cf::\L$klass\E::_attach_registry {	653	sub cf::\L$klass\E::_attach_registry {
329	(\\\@CB_$klass, KLASS_$klass)	654	(\\\@CB_$klass, KLASS_$klass)
330	}	655	}
331		656
…		…
367	}	692	}
368		693
369	0	694	0
370	}	695	}
371		696
372	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	697	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
373		698
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, ...)	699	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
379		700
380	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
381
382	Generate a global/object/player/map-specific event with the given arguments.	701	Generate an object-specific event with the given arguments.
383		702
384	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be	703	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	704	removed in future versions), and there is no public API to access override
386	results (if you must, access C<@cf::invoke_results> directly).	705	results (if you must, access C<@cf::invoke_results> directly).
387		706
388	=back	707	=back
389		708
390	=cut	709	=cut
391		710
392	#############################################################################	711	#############################################################################
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	712	# object support
414		713
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 {	714	sub reattach {
		715	# basically do the same as instantiate, without calling instantiate
429	my ($obj) = @_;	716	my ($obj) = @_;
		717
430	my $registry = $obj->registry;	718	my $registry = $obj->registry;
431		719
432	@$registry = ();	720	@$registry = ();
433		721
434	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	722	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
443	warn "object uses attachment '$name' that is not available, postponing.\n";	731	warn "object uses attachment '$name' that is not available, postponing.\n";
444	}	732	}
445	}	733	}
446	}	734	}
447		735
448	sub object_freezer_save {	736	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	$$rdata . Dumper $objs
485	}
486
487	sub object_thawer_load {
488	my ($filename) = @_;
489
490	local $/;
491
492	my $av;
493
494	#TODO: use sysread etc.
495	if (open my $data, "<:raw:perlio", $filename) {
496	$data = <$data>;
497	if (open my $pst, "<:raw:perlio", "$filename.pst") {
498	$av = eval { (Storable::thaw <$pst>)->{objs} };
499	}
500	return ($data, $av);
501	}
502
503	()
504	}
505
506	cf::object->attach (
507	prio => -1000000,	737	prio => -1000000,
		738	on_instantiate => sub {
		739	my ($obj, $data) = @_;
		740
		741	$data = from_json $data;
		742
		743	for (@$data) {
		744	my ($name, $args) = @$_;
		745
		746	$obj->attach ($name, %{$args || {} });
		747	}
		748	},
		749	on_reattach => \&reattach,
508	on_clone => sub {	750	on_clone => sub {
509	my ($src, $dst) = @_;	751	my ($src, $dst) = @_;
510		752
511	@{$dst->registry} = @{$src->registry};	753	@{$dst->registry} = @{$src->registry};
512		754
…		…
514		756
515	%{$dst->{_attachment}} = %{$src->{_attachment}}	757	%{$dst->{_attachment}} = %{$src->{_attachment}}
516	if exists $src->{_attachment};	758	if exists $src->{_attachment};
517	},	759	},
518	);	760	);
		761
		762	sub object_freezer_save {
		763	my ($filename, $rdata, $objs) = @_;
		764
		765	sync_job {
		766	if (length $$rdata) {
		767	warn sprintf "saving %s (%d,%d)\n",
		768	$filename, length $$rdata, scalar @$objs;
		769
		770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		771	chmod SAVE_MODE, $fh;
		772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		773	aio_fsync $fh;
		774	close $fh;
		775
		776	if (@$objs) {
		777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		778	chmod SAVE_MODE, $fh;
		779	my $data = Storable::nfreeze { version => 1, objs => $objs };
		780	aio_write $fh, 0, (length $data), $data, 0;
		781	aio_fsync $fh;
		782	close $fh;
		783	aio_rename "$filename.pst~", "$filename.pst";
		784	}
		785	} else {
		786	aio_unlink "$filename.pst";
		787	}
		788
		789	aio_rename "$filename~", $filename;
		790	} else {
		791	warn "FATAL: $filename~: $!\n";
		792	}
		793	} else {
		794	aio_unlink $filename;
		795	aio_unlink "$filename.pst";
		796	}
		797	}
		798	}
		799
		800	sub object_freezer_as_string {
		801	my ($rdata, $objs) = @_;
		802
		803	use Data::Dumper;
		804
		805	$$rdata . Dumper $objs
		806	}
		807
		808	sub object_thawer_load {
		809	my ($filename) = @_;
		810
		811	my ($data, $av);
		812
		813	(aio_load $filename, $data) >= 0
		814	or return;
		815
		816	unless (aio_stat "$filename.pst") {
		817	(aio_load "$filename.pst", $av) >= 0
		818	or return;
		819	$av = eval { (Storable::thaw $av)->{objs} };
		820	}
		821
		822	warn sprintf "loading %s (%d)\n",
		823	$filename, length $data, scalar @{$av || []};#d#
		824	return ($data, $av);
		825	}
519		826
520	#############################################################################	827	#############################################################################
521	# command handling &c	828	# command handling &c
522		829
523	=item cf::register_command $name => \&callback($ob,$args);	830	=item cf::register_command $name => \&callback($ob,$args);
…		…
712		1019
713	=head2 CORE EXTENSIONS	1020	=head2 CORE EXTENSIONS
714		1021
715	Functions and methods that extend core crossfire objects.	1022	Functions and methods that extend core crossfire objects.
716		1023
		1024	=head3 cf::player
		1025
717	=over 4	1026	=over 4
718		1027
719	=item cf::player::exists $login	1028	=item cf::player::exists $login
720		1029
721	Returns true when the given account exists.	1030	Returns true when the given account exists.
…		…
725	sub cf::player::exists($) {	1034	sub cf::player::exists($) {
726	cf::player::find $_[0]	1035	cf::player::find $_[0]
727	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1036	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
728	}	1037	}
729		1038
		1039	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1040
		1041	Sends an ext reply to the player.
		1042
		1043	=cut
		1044
		1045	sub cf::player::ext_reply($$$%) {
		1046	my ($self, $id, %msg) = @_;
		1047
		1048	$msg{msgid} = $id;
		1049
		1050	$self->send ("ext " . to_json \%msg);
		1051	}
		1052
		1053	=back
		1054
		1055
		1056	=head3 cf::map
		1057
		1058	=over 4
		1059
		1060	=cut
		1061
		1062	package cf::map;
		1063
		1064	use Fcntl;
		1065	use Coro::AIO;
		1066
		1067	our $MAX_RESET = 7200;
		1068	our $DEFAULT_RESET = 3600;
		1069
		1070	sub generate_random_map {
		1071	my ($path, $rmp) = @_;
		1072
		1073	# mit "rum" bekleckern, nicht
		1074	cf::map::_create_random_map
		1075	$path,
		1076	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1077	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1078	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1079	$rmp->{exit_on_final_map},
		1080	$rmp->{xsize}, $rmp->{ysize},
		1081	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1082	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1083	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1084	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1085	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1086	(cf::region::find $rmp->{region})
		1087	}
		1088
		1089	# and all this just because we cannot iterate over
		1090	# all maps in C++...
		1091	sub change_all_map_light {
		1092	my ($change) = @_;
		1093
		1094	$_->change_map_light ($change) for values %cf::MAP;
		1095	}
		1096
		1097	sub try_load_header($) {
		1098	my ($path) = @_;
		1099
		1100	utf8::encode $path;
		1101	aio_open $path, O_RDONLY, 0
		1102	or return;
		1103
		1104	my $map = cf::map::new
		1105	or return;
		1106
		1107	$map->load_header ($path)
		1108	or return;
		1109
		1110	$map->{load_path} = $path;
		1111
		1112	$map
		1113	}
		1114
		1115	sub find_map {
		1116	my ($path, $origin) = @_;
		1117
		1118	#warn "find_map<$path,$origin>\n";#d#
		1119
		1120	$path = new cf::path $path, $origin && $origin->path;
		1121	my $key = $path->as_string;
		1122
		1123	$cf::MAP{$key} || do {
		1124	# do it the slow way
		1125	my $map = try_load_header $path->save_path;
		1126
		1127	if ($map) {
		1128	# safety
		1129	$map->{instantiate_time} = $cf::RUNTIME
		1130	if $map->{instantiate_time} > $cf::RUNTIME;
		1131	} else {
		1132	if (my $rmp = $path->random_map_params) {
		1133	$map = generate_random_map $key, $rmp;
		1134	} else {
		1135	$map = try_load_header $path->load_path;
		1136	}
		1137
		1138	$map or return;
		1139
		1140	$map->{load_original} = 1;
		1141	$map->{instantiate_time} = $cf::RUNTIME;
		1142	$map->instantiate;
		1143
		1144	# per-player maps become, after loading, normal maps
		1145	$map->per_player (0) if $path->{user_rel};
		1146	}
		1147	#Coro::Timer::sleep 1;#d#
		1148
		1149	$map->path ($key);
		1150	$map->{path} = $path;
		1151	$map->{last_save} = $cf::RUNTIME;
		1152	$map->last_access ($cf::RUNTIME);
		1153
		1154	if ($map->should_reset) {
		1155	$map->reset;
		1156	$map = find_map $path;
		1157	}
		1158
		1159	$cf::MAP{$key} = $map
		1160	}
		1161	}
		1162
		1163	sub load {
		1164	my ($self) = @_;
		1165
		1166	return if $self->in_memory != cf::MAP_SWAPPED;
		1167
		1168	$self->in_memory (cf::MAP_LOADING);
		1169
		1170	my $path = $self->{path};
		1171
		1172	$self->alloc;
		1173	$self->load_objects ($self->{load_path}, 1)
		1174	or return;
		1175
		1176	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1177	if delete $self->{load_original};
		1178
		1179	if (my $uniq = $path->uniq_path) {
		1180	utf8::encode $uniq;
		1181	if (aio_open $uniq, O_RDONLY, 0) {
		1182	$self->clear_unique_items;
		1183	$self->load_objects ($uniq, 0);
		1184	}
		1185	}
		1186
		1187	# now do the right thing for maps
		1188	$self->link_multipart_objects;
		1189
		1190	if ($self->{path}->is_style_map) {
		1191	$self->{deny_save} = 1;
		1192	$self->{deny_reset} = 1;
		1193	} else {
		1194	$self->fix_auto_apply;
		1195	$self->decay_objects;
		1196	$self->update_buttons;
		1197	$self->set_darkness_map;
		1198	$self->difficulty ($self->estimate_difficulty)
		1199	unless $self->difficulty;
		1200	$self->activate;
		1201	}
		1202
		1203	$self->in_memory (cf::MAP_IN_MEMORY);
		1204	}
		1205
		1206	sub load_map_sync {
		1207	my ($path, $origin) = @_;
		1208
		1209	#warn "load_map_sync<$path, $origin>\n";#d#
		1210
		1211	cf::sync_job {
		1212	my $map = cf::map::find_map $path, $origin
		1213	or return;
		1214	$map->load;
		1215	$map
		1216	}
		1217	}
		1218
		1219	sub save {
		1220	my ($self) = @_;
		1221
		1222	$self->{last_save} = $cf::RUNTIME;
		1223
		1224	return unless $self->dirty;
		1225
		1226	my $save = $self->{path}->save_path; utf8::encode $save;
		1227	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1228
		1229	$self->{load_path} = $save;
		1230
		1231	return if $self->{deny_save};
		1232
		1233	if ($uniq) {
		1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1235	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1236	} else {
		1237	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1238	}
		1239	}
		1240
		1241	sub swap_out {
		1242	my ($self) = @_;
		1243
		1244	return if $self->players;
		1245	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1246	return if $self->{deny_save};
		1247
		1248	$self->save;
		1249	$self->clear;
		1250	$self->in_memory (cf::MAP_SWAPPED);
		1251	}
		1252
		1253	sub reset_at {
		1254	my ($self) = @_;
		1255
		1256	# TODO: safety, remove and allow resettable per-player maps
		1257	return 1e99 if $self->{path}{user_rel};
		1258	return 1e99 if $self->{deny_reset};
		1259
		1260	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1261	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1262
		1263	$time + $to
		1264	}
		1265
		1266	sub should_reset {
		1267	my ($self) = @_;
		1268
		1269	$self->reset_at <= $cf::RUNTIME
		1270	}
		1271
		1272	sub unlink_save {
		1273	my ($self) = @_;
		1274
		1275	utf8::encode (my $save = $self->{path}->save_path);
		1276	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1277	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1278	}
		1279
		1280	sub rename {
		1281	my ($self, $new_path) = @_;
		1282
		1283	$self->unlink_save;
		1284
		1285	delete $cf::MAP{$self->path};
		1286	$self->{path} = new cf::path $new_path;
		1287	$self->path ($self->{path}->as_string);
		1288	$cf::MAP{$self->path} = $self;
		1289
		1290	$self->save;
		1291	}
		1292
		1293	sub reset {
		1294	my ($self) = @_;
		1295
		1296	return if $self->players;
		1297	return if $self->{path}{user_rel};#d#
		1298
		1299	warn "resetting map ", $self->path;#d#
		1300
		1301	delete $cf::MAP{$self->path};
		1302
		1303	$_->clear_links_to ($self) for values %cf::MAP;
		1304
		1305	$self->unlink_save;
		1306	$self->destroy;
		1307	}
		1308
		1309	my $nuke_counter = "aaaa";
		1310
		1311	sub nuke {
		1312	my ($self) = @_;
		1313
		1314	$self->{deny_save} = 1;
		1315	$self->reset_timeout (1);
		1316	$self->rename ("{nuke}/" . ($nuke_counter++));
		1317	$self->reset; # polite request, might not happen
		1318	}
		1319
		1320	sub customise_for {
		1321	my ($map, $ob) = @_;
		1322
		1323	if ($map->per_player) {
		1324	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1325	}
		1326
		1327	$map
		1328	}
		1329
		1330	sub emergency_save {
		1331	local $cf::FREEZE = 1;
		1332
		1333	warn "enter emergency map save\n";
		1334
		1335	cf::sync_job {
		1336	warn "begin emergency map save\n";
		1337	$_->save for values %cf::MAP;
		1338	};
		1339
		1340	warn "end emergency map save\n";
		1341	}
		1342
		1343	package cf;
		1344
		1345	=back
		1346
		1347
		1348	=head3 cf::object::player
		1349
		1350	=over 4
		1351
730	=item $player_object->reply ($npc, $msg[, $flags])	1352	=item $player_object->reply ($npc, $msg[, $flags])
731		1353
732	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1354	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	1355	can be C<undef>. Does the right thing when the player is currently in a
734	dialogue with the given NPC character.	1356	dialogue with the given NPC character.
735		1357
736	=cut	1358	=cut
737		1359
738	# rough implementation of a future "reply" method that works	1360	# rough implementation of a future "reply" method that works
739	# with dialog boxes.	1361	# with dialog boxes.
		1362	#TODO: the first argument must go, split into a $npc->reply_to ( method
740	sub cf::object::player::reply($$$;$) {	1363	sub cf::object::player::reply($$$;$) {
741	my ($self, $npc, $msg, $flags) = @_;	1364	my ($self, $npc, $msg, $flags) = @_;
742		1365
743	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1366	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
744		1367
…		…
748	$msg = $npc->name . " says: $msg" if $npc;	1371	$msg = $npc->name . " says: $msg" if $npc;
749	$self->message ($msg, $flags);	1372	$self->message ($msg, $flags);
750	}	1373	}
751	}	1374	}
752		1375
753	=item $player->ext_reply ($msgid, $msgtype, %msg)
754
755	Sends an ext reply to the player.
756
757	=cut
758
759	sub cf::player::ext_reply($$$%) {
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")	1376	=item $player_object->may ("access")
768		1377
769	Returns wether the given player is authorized to access resource "access"	1378	Returns wether the given player is authorized to access resource "access"
770	(e.g. "command_wizcast").	1379	(e.g. "command_wizcast").
771		1380
…		…
778	(ref $cf::CFG{"may_$access"}	1387	(ref $cf::CFG{"may_$access"}
779	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1388	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
780	: $cf::CFG{"may_$access"})	1389	: $cf::CFG{"may_$access"})
781	}	1390	}
782		1391
783	=cut	1392	=item $player_object->enter_link
784		1393
785	#############################################################################	1394	Freezes the player and moves him/her to a special map (C<{link}>).
		1395
		1396	The player should be reaosnably safe there for short amounts of time. You
		1397	I<MUST> call C<leave_link> as soon as possible, though.
		1398
		1399	=item $player_object->leave_link ($map, $x, $y)
		1400
		1401	Moves the player out of the specila link map onto the given map. If the
		1402	map is not valid (or omitted), the player will be moved back to the
		1403	location he/she was before the call to C<enter_link>, or, if that fails,
		1404	to the emergency map position.
		1405
		1406	Might block.
		1407
		1408	=cut
		1409
		1410	sub cf::object::player::enter_link {
		1411	my ($self) = @_;
		1412
		1413	return if $self->map == $LINK_MAP;
		1414
		1415	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
		1416	if $self->map;
		1417
		1418	$self->enter_map ($LINK_MAP, 20, 20);
		1419	$self->deactivate_recursive;
		1420	}
		1421
		1422	sub cf::object::player::leave_link {
		1423	my ($self, $map, $x, $y) = @_;
		1424
		1425	my $link_pos = delete $self->{_link_pos};
		1426
		1427	unless ($map) {
		1428	# restore original map position
		1429	($map, $x, $y) = @{ $link_pos || [] };
		1430	$map = cf::map::find_map $map;
		1431
		1432	unless ($map) {
		1433	($map, $x, $y) = @$EMERGENCY_POSITION;
		1434	$map = cf::map::find_map $map
		1435	or die "FATAL: cannot load emergency map\n";
		1436	}
		1437	}
		1438
		1439	($x, $y) = (-1, -1)
		1440	unless (defined $x) && (defined $y);
		1441
		1442	# use -1 or undef as default coordinates, not 0, 0
		1443	($x, $y) = ($map->enter_x, $map->enter_y)
		1444	if $x <=0 && $y <= 0;
		1445
		1446	$map->load;
		1447
		1448	$self->activate_recursive;
		1449	$self->enter_map ($map, $x, $y);
		1450	}
		1451
		1452	=item $player_object->goto_map ($path, $x, $y)
		1453
		1454	=cut
		1455
		1456	sub cf::object::player::goto_map {
		1457	my ($self, $path, $x, $y) = @_;
		1458
		1459	$self->enter_link;
		1460
		1461	(Coro::async {
		1462	$path = new cf::path $path;
		1463
		1464	my $map = cf::map::find_map $path->as_string;
		1465	$map = $map->customise_for ($self) if $map;
		1466
		1467	# warn "entering ", $map->path, " at ($x, $y)\n"
		1468	# if $map;
		1469
		1470	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1471
		1472	$self->leave_link ($map, $x, $y);
		1473	})->prio (1);
		1474	}
		1475
		1476	=item $player_object->enter_exit ($exit_object)
		1477
		1478	=cut
		1479
		1480	sub parse_random_map_params {
		1481	my ($spec) = @_;
		1482
		1483	my $rmp = { # defaults
		1484	xsize => 10,
		1485	ysize => 10,
		1486	};
		1487
		1488	for (split /\n/, $spec) {
		1489	my ($k, $v) = split /\s+/, $_, 2;
		1490
		1491	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1492	}
		1493
		1494	$rmp
		1495	}
		1496
		1497	sub prepare_random_map {
		1498	my ($exit) = @_;
		1499
		1500	# all this does is basically replace the /! path by
		1501	# a new random map path (?random/...) with a seed
		1502	# that depends on the exit object
		1503
		1504	my $rmp = parse_random_map_params $exit->msg;
		1505
		1506	if ($exit->map) {
		1507	$rmp->{region} = $exit->map->region_name;
		1508	$rmp->{origin_map} = $exit->map->path;
		1509	$rmp->{origin_x} = $exit->x;
		1510	$rmp->{origin_y} = $exit->y;
		1511	}
		1512
		1513	$rmp->{random_seed} ||= $exit->random_seed;
		1514
		1515	my $data = cf::to_json $rmp;
		1516	my $md5 = Digest::MD5::md5_hex $data;
		1517
		1518	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1519	aio_write $fh, 0, (length $data), $data, 0;
		1520
		1521	$exit->slaying ("?random/$md5");
		1522	$exit->msg (undef);
		1523	}
		1524	}
		1525
		1526	sub cf::object::player::enter_exit {
		1527	my ($self, $exit) = @_;
		1528
		1529	return unless $self->type == cf::PLAYER;
		1530
		1531	$self->enter_link;
		1532
		1533	(Coro::async {
		1534	unless (eval {
		1535
		1536	prepare_random_map $exit
		1537	if $exit->slaying eq "/!";
		1538
		1539	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1540	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1541
		1542	1;
		1543	}) {
		1544	$self->message ("Something went wrong deep within the crossfire server. "
		1545	. "I'll try to bring you back to the map you were before. "
		1546	. "Please report this to the dungeon master",
		1547	cf::NDI_UNIQUE | cf::NDI_RED);
		1548
		1549	warn "ERROR in enter_exit: $@";
		1550	$self->leave_link;
		1551	}
		1552	})->prio (1);
		1553	}
		1554
		1555	=head3 cf::client
		1556
		1557	=over 4
		1558
		1559	=item $client->send_drawinfo ($text, $flags)
		1560
		1561	Sends a drawinfo packet to the client. Circumvents output buffering so
		1562	should not be used under normal circumstances.
		1563
		1564	=cut
		1565
		1566	sub cf::client::send_drawinfo {
		1567	my ($self, $text, $flags) = @_;
		1568
		1569	utf8::encode $text;
		1570	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1571	}
		1572
		1573
		1574	=item $success = $client->query ($flags, "text", \&cb)
		1575
		1576	Queues a query to the client, calling the given callback with
		1577	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1578	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1579
		1580	Queries can fail, so check the return code. Or don't, as queries will become
		1581	reliable at some point in the future.
		1582
		1583	=cut
		1584
		1585	sub cf::client::query {
		1586	my ($self, $flags, $text, $cb) = @_;
		1587
		1588	return unless $self->state == ST_PLAYING
		1589	|| $self->state == ST_SETUP
		1590	|| $self->state == ST_CUSTOM;
		1591
		1592	$self->state (ST_CUSTOM);
		1593
		1594	utf8::encode $text;
		1595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1596
		1597	$self->send_packet ($self->{query_queue}[0][0])
		1598	if @{ $self->{query_queue} } == 1;
		1599	}
		1600
		1601	cf::client->attach (
		1602	on_reply => sub {
		1603	my ($ns, $msg) = @_;
		1604
		1605	# this weird shuffling is so that direct followup queries
		1606	# get handled first
		1607	my $queue = delete $ns->{query_queue};
		1608
		1609	(shift @$queue)->[1]->($msg);
		1610
		1611	push @{ $ns->{query_queue} }, @$queue;
		1612
		1613	if (@{ $ns->{query_queue} } == @$queue) {
		1614	if (@$queue) {
		1615	$ns->send_packet ($ns->{query_queue}[0][0]);
		1616	} else {
		1617	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1618	}
		1619	}
		1620	},
		1621	);
		1622
		1623	=item $client->coro (\&cb)
		1624
		1625	Create a new coroutine, running the specified callback. The coroutine will
		1626	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1627	or loss of connection).
		1628
		1629	=cut
		1630
		1631	sub cf::client::coro {
		1632	my ($self, $cb) = @_;
		1633
		1634	my $coro; $coro = async {
		1635	eval {
		1636	$cb->();
		1637	};
		1638	warn $@ if $@;
		1639	};
		1640
		1641	$coro->on_destroy (sub {
		1642	delete $self->{_coro}{$coro+0};
		1643	});
		1644
		1645	$self->{_coro}{$coro+0} = $coro;
		1646
		1647	$coro
		1648	}
		1649
		1650	cf::client->attach (
		1651	on_destroy => sub {
		1652	my ($ns) = @_;
		1653
		1654	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1655	},
		1656	);
		1657
		1658	=back
		1659
786		1660
787	=head2 SAFE SCRIPTING	1661	=head2 SAFE SCRIPTING
788		1662
789	Functions that provide a safe environment to compile and execute	1663	Functions that provide a safe environment to compile and execute
790	snippets of perl code without them endangering the safety of the server	1664	snippets of perl code without them endangering the safety of the server
…		…
1010	local $/;	1884	local $/;
1011	*CFG = YAML::Syck::Load <$fh>;	1885	*CFG = YAML::Syck::Load <$fh>;
1012	}	1886	}
1013		1887
1014	sub main {	1888	sub main {
		1889	# we must not ever block the main coroutine
		1890	local $Coro::idle = sub {
		1891	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		1892	(Coro::unblock_sub {
		1893	Event::one_event;
		1894	})->();
		1895	};
		1896
1015	cfg_load;	1897	cfg_load;
1016	db_load;	1898	db_load;
1017	load_extensions;	1899	load_extensions;
1018	Event::loop;	1900	Event::loop;
1019	}	1901	}
1020		1902
1021	#############################################################################	1903	#############################################################################
1022	# initialisation	1904	# initialisation
1023		1905
1024	sub _perl_reload(&) {	1906	sub reload() {
1025	my ($msg) = @_;	1907	# can/must only be called in main
		1908	if ($Coro::current != $Coro::main) {
		1909	warn "can only reload from main coroutine\n";
		1910	return;
		1911	}
1026		1912
1027	$msg->("reloading...");	1913	warn "reloading...";
		1914
		1915	local $FREEZE = 1;
		1916	cf::emergency_save;
1028		1917
1029	eval {	1918	eval {
		1919	# if anything goes wrong in here, we should simply crash as we already saved
		1920
1030	# cancel all watchers	1921	# cancel all watchers
1031	for (Event::all_watchers) {	1922	for (Event::all_watchers) {
1032	$_->cancel if $_->data & WF_AUTOCANCEL;	1923	$_->cancel if $_->data & WF_AUTOCANCEL;
1033	}	1924	}
1034		1925
		1926	# cancel all extension coros
		1927	$_->cancel for values %EXT_CORO;
		1928	%EXT_CORO = ();
		1929
1035	# unload all extensions	1930	# unload all extensions
1036	for (@exts) {	1931	for (@exts) {
1037	$msg->("unloading <$_>");	1932	warn "unloading <$_>";
1038	unload_extension $_;	1933	unload_extension $_;
1039	}	1934	}
1040		1935
1041	# unload all modules loaded from $LIBDIR	1936	# unload all modules loaded from $LIBDIR
1042	while (my ($k, $v) = each %INC) {	1937	while (my ($k, $v) = each %INC) {
1043	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1044		1939
1045	$msg->("removing <$k>");	1940	warn "removing <$k>";
1046	delete $INC{$k};	1941	delete $INC{$k};
1047		1942
1048	$k =~ s/\.pm$//;	1943	$k =~ s/\.pm$//;
1049	$k =~ s/\//::/g;	1944	$k =~ s/\//::/g;
1050		1945
…		…
1055	Symbol::delete_package $k;	1950	Symbol::delete_package $k;
1056	}	1951	}
1057		1952
1058	# sync database to disk	1953	# sync database to disk
1059	cf::db_sync;	1954	cf::db_sync;
		1955	IO::AIO::flush;
1060		1956
1061	# get rid of safe::, as good as possible	1957	# get rid of safe::, as good as possible
1062	Symbol::delete_package "safe::$_"	1958	Symbol::delete_package "safe::$_"
1063	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1064		1960
1065	# remove register_script_function callbacks	1961	# remove register_script_function callbacks
1066	# TODO	1962	# TODO
1067		1963
1068	# unload cf.pm "a bit"	1964	# unload cf.pm "a bit"
…		…
1071	# don't, removes xs symbols, too,	1967	# don't, removes xs symbols, too,
1072	# and global variables created in xs	1968	# and global variables created in xs
1073	#Symbol::delete_package __PACKAGE__;	1969	#Symbol::delete_package __PACKAGE__;
1074		1970
1075	# reload cf.pm	1971	# reload cf.pm
1076	$msg->("reloading cf.pm");	1972	warn "reloading cf.pm";
1077	require cf;	1973	require cf;
		1974	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1078		1975
1079	# load config and database again	1976	# load config and database again
1080	cf::cfg_load;	1977	cf::cfg_load;
1081	cf::db_load;	1978	cf::db_load;
1082		1979
1083	# load extensions	1980	# load extensions
1084	$msg->("load extensions");	1981	warn "load extensions";
1085	cf::load_extensions;	1982	cf::load_extensions;
1086		1983
1087	# reattach attachments to objects	1984	# reattach attachments to objects
1088	$msg->("reattach");	1985	warn "reattach";
1089	_global_reattach;	1986	_global_reattach;
1090	};	1987	};
1091	$msg->($@) if $@;
1092		1988
1093	$msg->("reloaded");	1989	if ($@) {
		1990	warn $@;
		1991	warn "error while reloading, exiting.";
		1992	exit 1;
		1993	}
		1994
		1995	warn "reloaded successfully";
1094	};	1996	};
1095		1997
1096	sub perl_reload() {	1998	#############################################################################
1097	_perl_reload {	1999
1098	warn $_[0];	2000	unless ($LINK_MAP) {
1099	print "$_[0]\n";	2001	$LINK_MAP = cf::map::new;
1100	};	2002
		2003	$LINK_MAP->width (41);
		2004	$LINK_MAP->height (41);
		2005	$LINK_MAP->alloc;
		2006	$LINK_MAP->path ("{link}");
		2007	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2008	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2009
		2010	# dirty hack because... archetypes are not yet loaded
		2011	Event->timer (
		2012	after => 2,
		2013	cb => sub {
		2014	$_[0]->w->cancel;
		2015
		2016	# provide some exits "home"
		2017	my $exit = cf::object::new "exit";
		2018
		2019	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2020	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2021	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2022
		2023	$LINK_MAP->insert ($exit->clone, 19, 19);
		2024	$LINK_MAP->insert ($exit->clone, 19, 20);
		2025	$LINK_MAP->insert ($exit->clone, 19, 21);
		2026	$LINK_MAP->insert ($exit->clone, 20, 19);
		2027	$LINK_MAP->insert ($exit->clone, 20, 21);
		2028	$LINK_MAP->insert ($exit->clone, 21, 19);
		2029	$LINK_MAP->insert ($exit->clone, 21, 20);
		2030	$LINK_MAP->insert ($exit->clone, 21, 21);
		2031
		2032	$exit->destroy;
		2033	});
		2034
		2035	$LINK_MAP->{deny_save} = 1;
		2036	$LINK_MAP->{deny_reset} = 1;
		2037
		2038	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1101	}	2039	}
1102		2040
1103	register "<global>", __PACKAGE__;	2041	register "<global>", __PACKAGE__;
1104		2042
1105	register_command "perl-reload" => sub {	2043	register_command "reload" => sub {
1106	my ($who, $arg) = @_;	2044	my ($who, $arg) = @_;
1107		2045
1108	if ($who->flag (FLAG_WIZ)) {	2046	if ($who->flag (FLAG_WIZ)) {
1109	_perl_reload {	2047	$who->message ("start of reload.");
1110	warn $_[0];	2048	reload;
1111	$who->message ($_[0]);	2049	$who->message ("end of reload.");
1112	};
1113	}	2050	}
1114	};	2051	};
1115		2052
1116	unshift @INC, $LIBDIR;	2053	unshift @INC, $LIBDIR;
1117		2054
1118	$TICK_WATCHER = Event->timer (	2055	$TICK_WATCHER = Event->timer (
		2056	reentrant => 0,
1119	prio => 0,	2057	prio => 0,
1120	at => $NEXT_TICK || 1,	2058	at => $NEXT_TICK || $TICK,
1121	data => WF_AUTOCANCEL,	2059	data => WF_AUTOCANCEL,
1122	cb => sub {	2060	cb => sub {
		2061	unless ($FREEZE) {
1123	cf::server_tick; # one server iteration	2062	cf::server_tick; # one server iteration
		2063	$RUNTIME += $TICK;
		2064	}
1124		2065
1125	my $NOW = Event::time;
1126	$NEXT_TICK += $TICK;	2066	$NEXT_TICK += $TICK;
1127		2067
1128	# if we are delayed by four ticks or more, skip them all	2068	# if we are delayed by four ticks or more, skip them all
1129	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2069	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1130		2070
1131	$TICK_WATCHER->at ($NEXT_TICK);	2071	$TICK_WATCHER->at ($NEXT_TICK);
1132	$TICK_WATCHER->start;	2072	$TICK_WATCHER->start;
1133	},	2073	},
1134	);	2074	);
1135		2075
1136	IO::AIO::max_poll_time $TICK * 0.2;	2076	IO::AIO::max_poll_time $TICK * 0.2;
1137		2077
		2078	Event->io (
1138	Event->io (fd => IO::AIO::poll_fileno,	2079	fd => IO::AIO::poll_fileno,
1139	poll => 'r',	2080	poll => 'r',
1140	prio => 5,	2081	prio => 5,
1141	data => WF_AUTOCANCEL,	2082	data => WF_AUTOCANCEL,
1142	cb => \&IO::AIO::poll_cb);	2083	cb => \&IO::AIO::poll_cb,
		2084	);
		2085
		2086	Event->timer (
		2087	data => WF_AUTOCANCEL,
		2088	after => 0,
		2089	interval => 10,
		2090	cb => sub {
		2091	(Coro::unblock_sub {
		2092	write_runtime
		2093	or warn "ERROR: unable to write runtime file: $!";
		2094	})->();
		2095	},
		2096	);
1143		2097
1144	1	2098	1
1145		2099

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