ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.47 by root, Sun Aug 27 13:02:04 2006 UTC vs.
Revision 1.204 by root, Fri Feb 2 19:59:22 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 3.5 ();
		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;
		23	use IO::AIO 2.32 ();
		24	use YAML::Syck ();
10	use Time::HiRes;	25	use Time::HiRes;
11	use Event;	26
12	$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
13		28
14	use strict;	29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
15		30
16	_reload_1;	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
		32	$YAML::Syck::ImplicitUnicode = 1;
17		33
		34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		35
18	our %COMMAND = ();	36	our %COMMAND = ();
		37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
		40	our %EXTCMD = ();
		41	our %EXT_CORO = (); # coroutines bound to extensions
		42	our %EXT_MAP = (); # pluggable maps
		43
19	our @EVENT;	44	our @EVENT;
20	our %PROP_TYPE;	45	our $LIBDIR = datadir . "/ext";
21	our %PROP_IDX;
22	our $LIBDIR = maps_directory "perl";
23		46
24	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
25	our $TICK_WATCHER;	48	our $TICK_WATCHER;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
26	our $NEXT_TICK;	51	our $NEXT_TICK;
		52	our $NOW;
		53	our $USE_FSYNC; # use fsync to write maps - default off
		54
		55	our %CFG;
		56
		57	our $UPTIME; $UPTIME ||= time;
		58	our $RUNTIME;
		59
		60	our %PLAYER; # all users
		61	our %MAP; # all maps
		62	our $LINK_MAP; # the special {link} map, which is always available
		63	our $RANDOM_MAPS = cf::localdir . "/random";
		64
		65	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		66	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		67
		68	# used to convert map paths into valid unix filenames by replacing / by ∕
		69	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		70
		71	binmode STDOUT;
		72	binmode STDERR;
		73
		74	# read virtual server time, if available
		75	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		76	open my $fh, "<", cf::localdir . "/runtime"
		77	or die "unable to read runtime file: $!";
		78	$RUNTIME = <$fh> + 0.;
		79	}
		80
		81	mkdir cf::localdir;
		82	mkdir cf::localdir . "/" . cf::playerdir;
		83	mkdir cf::localdir . "/" . cf::tmpdir;
		84	mkdir cf::localdir . "/" . cf::uniquedir;
		85	mkdir $RANDOM_MAPS;
		86
		87	our $EMERGENCY_POSITION;
		88
		89	sub cf::map::normalise;
		90
		91	#############################################################################
		92
		93	=head2 GLOBAL VARIABLES
		94
		95	=over 4
		96
		97	=item $cf::UPTIME
		98
		99	The timestamp of the server start (so not actually an uptime).
		100
		101	=item $cf::RUNTIME
		102
		103	The time this server has run, starts at 0 and is increased by $cf::TICK on
		104	every server tick.
		105
		106	=item $cf::LIBDIR
		107
		108	The perl library directory, where extensions and cf-specific modules can
		109	be found. It will be added to C<@INC> automatically.
		110
		111	=item $cf::NOW
		112
		113	The time of the last (current) server tick.
		114
		115	=item $cf::TICK
		116
		117	The interval between server ticks, in seconds.
		118
		119	=item %cf::CFG
		120
		121	Configuration for the server, loaded from C</etc/crossfire/config>, or
		122	from wherever your confdir points to.
		123
		124	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		125
		126	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		127	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		128	processing has been done. Call C<< ->wait >> on them to maximise the
		129	window of cpu time available, or simply to synchronise to the server tick.
		130
		131	=back
		132
		133	=cut
27		134
28	BEGIN {	135	BEGIN {
29	*CORE::GLOBAL::warn = sub {	136	*CORE::GLOBAL::warn = sub {
30	my $msg = join "", @_;	137	my $msg = join "", @_;
		138	utf8::encode $msg;
		139
31	$msg .= "\n"	140	$msg .= "\n"
32	unless $msg =~ /\n$/;	141	unless $msg =~ /\n$/;
33		142
34	print STDERR "cfperl: $msg";
35	LOG llevError, "cfperl: $msg";	143	LOG llevError, $msg;
36	};	144	};
37	}	145	}
38		146
39	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!	147	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
40		148	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
41	# generate property mutators	149	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
42	sub prop_gen {	150	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
43	my ($prefix, $class) = @_;	151	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
44
45	no strict 'refs';
46
47	for my $prop (keys %PROP_TYPE) {
48	$prop =~ /^\Q$prefix\E_(.*$)/ or next;
49	my $sub = lc $1;
50
51	my $type = $PROP_TYPE{$prop};
52	my $idx = $PROP_IDX {$prop};
53
54	*{"$class\::get_$sub"} = *{"$class\::$sub"} = sub {
55	$_[0]->get_property ($type, $idx)
56	};
57
58	*{"$class\::set_$sub"} = sub {
59	$_[0]->set_property ($type, $idx, $_[1]);
60	} unless $ignore_set{$prop};
61	}
62	}
63
64	# auto-generate most of the API
65
66	prop_gen OBJECT_PROP => "cf::object";
67	# CFAPI_OBJECT_ANIMATION?
68	prop_gen PLAYER_PROP => "cf::object::player";
69
70	prop_gen MAP_PROP => "cf::map";
71	prop_gen ARCH_PROP => "cf::arch";
72
73	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	152	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
74		153
75	# we bless all objects into (empty) derived classes to force a method lookup	154	# we bless all objects into (empty) derived classes to force a method lookup
76	# within the Safe compartment.	155	# within the Safe compartment.
77	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {	156	for my $pkg (qw(
		157	cf::global cf::attachable
		158	cf::object cf::object::player
		159	cf::client cf::player
		160	cf::arch cf::living
		161	cf::map cf::party cf::region
		162	)) {
78	no strict 'refs';	163	no strict 'refs';
79	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	164	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
80	}	165	}
81		166
82	$Event::DIED = sub {	167	$Event::DIED = sub {
83	warn "error in event callback: @_";	168	warn "error in event callback: @_";
84	};	169	};
85		170
86	my %ext_pkg;	171	=head2 UTILITY FUNCTIONS
87	my @exts;
88	my @hook;
89	my %command;
90	my %extcmd;
91		172
92	#############################################################################	173	=over 4
93	# utility functions	174
		175	=item dumpval $ref
		176
		177	=cut
		178
		179	sub dumpval {
		180	eval {
		181	local $SIG{__DIE__};
		182	my $d;
		183	if (1) {
		184	$d = new Data::Dumper([$_[0]], ["*var"]);
		185	$d->Terse(1);
		186	$d->Indent(2);
		187	$d->Quotekeys(0);
		188	$d->Useqq(1);
		189	#$d->Bless(...);
		190	$d->Seen($_[1]) if @_ > 1;
		191	$d = $d->Dump();
		192	}
		193	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		194	$d
		195	} || "[unable to dump $_[0]: '$@']";
		196	}
94		197
95	use JSON::Syck (); # TODO# replace by JSON::PC once working	198	use JSON::Syck (); # TODO# replace by JSON::PC once working
		199
		200	=item $ref = cf::from_json $json
		201
		202	Converts a JSON string into the corresponding perl data structure.
		203
		204	=cut
96		205
97	sub from_json($) {	206	sub from_json($) {
98	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs	207	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
99	JSON::Syck::Load $_[0]	208	JSON::Syck::Load $_[0]
100	}	209	}
101		210
		211	=item $json = cf::to_json $ref
		212
		213	Converts a perl data structure into its JSON representation.
		214
		215	=cut
		216
102	sub to_json($) {	217	sub to_json($) {
103	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	218	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
104	JSON::Syck::Dump $_[0]	219	JSON::Syck::Dump $_[0]
105	}	220	}
106		221
		222	=item cf::lock_wait $string
		223
		224	Wait until the given lock is available. See cf::lock_acquire.
		225
		226	=item my $lock = cf::lock_acquire $string
		227
		228	Wait until the given lock is available and then acquires it and returns
		229	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		230	for example when the coroutine gets canceled), the lock is automatically
		231	returned.
		232
		233	Lock names should begin with a unique identifier (for example, cf::map::find
		234	uses map_find and cf::map::load uses map_load).
		235
		236	=cut
		237
		238	our %LOCK;
		239
		240	sub lock_wait($) {
		241	my ($key) = @_;
		242
		243	# wait for lock, if any
		244	while ($LOCK{$key}) {
		245	push @{ $LOCK{$key} }, $Coro::current;
		246	Coro::schedule;
		247	}
		248	}
		249
		250	sub lock_acquire($) {
		251	my ($key) = @_;
		252
		253	# wait, to be sure we are not locked
		254	lock_wait $key;
		255
		256	$LOCK{$key} = [];
		257
		258	Coro::guard {
		259	# wake up all waiters, to be on the safe side
		260	$_->ready for @{ delete $LOCK{$key} };
		261	}
		262	}
		263
		264	sub freeze_mainloop {
		265	return unless $TICK_WATCHER->is_active;
		266
		267	my $guard = Coro::guard {
		268	$TICK_WATCHER->start;
		269	$WRITE_RUNTIME_WATCHER->start;
		270	};
		271	$WRITE_RUNTIME_WATCHER->stop;
		272	$TICK_WATCHER->stop;
		273	$guard
		274	}
		275
		276	=item cf::async { BLOCK }
		277
		278	Currently the same as Coro::async_pool, meaning you cannot use
		279	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		280	thing you are allowed to do is call C<prio> on it.
		281
		282	=cut
		283
		284	BEGIN { *async = \&Coro::async_pool }
		285
		286	=item cf::sync_job { BLOCK }
		287
		288	The design of crossfire+ requires that the main coro ($Coro::main) is
		289	always able to handle events or runnable, as crossfire+ is only partly
		290	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		291
		292	If it must be done, put the blocking parts into C<sync_job>. This will run
		293	the given BLOCK in another coroutine while waiting for the result. The
		294	server will be frozen during this time, so the block should either finish
		295	fast or be very important.
		296
		297	=cut
		298
		299	sub sync_job(&) {
		300	my ($job) = @_;
		301
		302	if ($Coro::current == $Coro::main) {
		303	# this is the main coro, too bad, we have to block
		304	# till the operation succeeds, freezing the server :/
		305
		306	# TODO: use suspend/resume instead
		307	# (but this is cancel-safe)
		308	my $freeze_guard = freeze_mainloop;
		309
		310	my $busy = 1;
		311	my @res;
		312
		313	(async {
		314	@res = eval { $job->() };
		315	warn $@ if $@;
		316	undef $busy;
		317	})->prio (Coro::PRIO_MAX);
		318
		319	while ($busy) {
		320	Coro::cede or Event::one_event;
		321	}
		322
		323	wantarray ? @res : $res[0]
		324	} else {
		325	# we are in another coroutine, how wonderful, everything just works
		326
		327	$job->()
		328	}
		329	}
		330
		331	=item $coro = cf::async_ext { BLOCK }
		332
		333	Like async, but this coro is automatically being canceled when the
		334	extension calling this is being unloaded.
		335
		336	=cut
		337
		338	sub async_ext(&) {
		339	my $cb = shift;
		340
		341	my $coro = &Coro::async ($cb);
		342
		343	$coro->on_destroy (sub {
		344	delete $EXT_CORO{$coro+0};
		345	});
		346	$EXT_CORO{$coro+0} = $coro;
		347
		348	$coro
		349	}
		350
		351	sub write_runtime {
		352	my $runtime = cf::localdir . "/runtime";
		353
		354	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		355	or return;
		356
		357	my $value = $cf::RUNTIME + 90 + 10;
		358	# 10 is the runtime save interval, for a monotonic clock
		359	# 60 allows for the watchdog to kill the server.
		360
		361	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		362	and return;
		363
		364	# always fsync - this file is important
		365	aio_fsync $fh
		366	and return;
		367
		368	close $fh
		369	or return;
		370
		371	aio_rename "$runtime~", $runtime
		372	and return;
		373
		374	1
		375	}
		376
		377	=back
		378
		379	=cut
		380
107	#############################################################################	381	#############################################################################
108	# "new" plug-in system
109		382
110	=item $object->attach ($attachment, ...)	383	=head2 ATTACHABLE OBJECTS
111		384
112	Attach a pre-registered attachment to an object.	385	Many objects in crossfire are so-called attachable objects. That means you can
		386	attach callbacks/event handlers (a collection of which is called an "attachment")
		387	to it. All such attachable objects support the following methods.
113		388
114	=item $player->attach ($attachment, ...)	389	In the following description, CLASS can be any of C<global>, C<object>
		390	C<player>, C<client> or C<map> (i.e. the attachable objects in
		391	crossfire+).
115		392
116	Attach a pre-registered attachment to a player.	393	=over 4
117		394
118	=item $map->attach ($attachment, ...) # not yet persistent	395	=item $attachable->attach ($attachment, key => $value...)
119		396
120	Attach a pre-registered attachment to a map.	397	=item $attachable->detach ($attachment)
121		398
122	=item cf::attach_global ...	399	Attach/detach a pre-registered attachment to a specific object and give it
		400	the specified key/value pairs as arguments.
123		401
124	Attach handlers for global events.	402	Example, attach a minesweeper attachment to the given object, making it a
		403	10x10 minesweeper game:
125		404
126	This and all following C<attach_*>-functions expect any number of the	405	$obj->attach (minesweeper => width => 10, height => 10);
127	following handler/hook descriptions:	406
		407	=item $bool = $attachable->attached ($name)
		408
		409	Checks wether the named attachment is currently attached to the object.
		410
		411	=item cf::CLASS->attach ...
		412
		413	=item cf::CLASS->detach ...
		414
		415	Define an anonymous attachment and attach it to all objects of the given
		416	CLASS. See the next function for an explanation of its arguments.
		417
		418	You can attach to global events by using the C<cf::global> class.
		419
		420	Example, log all player logins:
		421
		422	cf::player->attach (
		423	on_login => sub {
		424	my ($pl) = @_;
		425	...
		426	},
		427	);
		428
		429	Example, attach to the jeweler skill:
		430
		431	cf::object->attach (
		432	type => cf::SKILL,
		433	subtype => cf::SK_JEWELER,
		434	on_use_skill => sub {
		435	my ($sk, $ob, $part, $dir, $msg) = @_;
		436	...
		437	},
		438	);
		439
		440	=item cf::CLASS::attachment $name, ...
		441
		442	Register an attachment by C<$name> through which attachable objects of the
		443	given CLASS can refer to this attachment.
		444
		445	Some classes such as crossfire maps and objects can specify attachments
		446	that are attached at load/instantiate time, thus the need for a name.
		447
		448	These calls expect any number of the following handler/hook descriptions:
128		449
129	=over 4	450	=over 4
130		451
131	=item prio => $number	452	=item prio => $number
132		453
…		…
134	by another C<prio> setting). Lower priority handlers get executed	455	by another C<prio> setting). Lower priority handlers get executed
135	earlier. The default priority is C<0>, and many built-in handlers are	456	earlier. The default priority is C<0>, and many built-in handlers are
136	registered at priority C<-1000>, so lower priorities should not be used	457	registered at priority C<-1000>, so lower priorities should not be used
137	unless you know what you are doing.	458	unless you know what you are doing.
138		459
		460	=item type => $type
		461
		462	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		463	given type of objects only (the additional parameter C<subtype> can be
		464	used to further limit to the given subtype).
		465
139	=item on_I<event> => \&cb	466	=item on_I<event> => \&cb
140		467
141	Call the given code reference whenever the named event happens (event is	468	Call the given code reference whenever the named event happens (event is
142	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	469	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
143	handlers are recognised generally depends on the type of object these	470	handlers are recognised generally depends on the type of object these
…		…
152	package and register them. Only handlers for eevents supported by the	479	package and register them. Only handlers for eevents supported by the
153	object/class are recognised.	480	object/class are recognised.
154		481
155	=back	482	=back
156		483
157	=item cf::attach_to_type $object_type, $subtype, ...	484	Example, define an attachment called "sockpuppet" that calls the given
		485	event handler when a monster attacks:
158		486
159	Attach handlers for a specific object type (e.g. TRANSPORT) and	487	cf::object::attachment sockpuppet =>
160	subtype. If C<$subtype> is zero or undef, matches all objects of the given	488	on_skill_attack => sub {
161	type.	489	my ($self, $victim) = @_;
		490	...
		491	}
		492	}
162		493
163	=item cf::attach_to_objects ...	494	=item $attachable->valid
164		495
165	Attach handlers to all objects. Do not use this except for debugging or	496	Just because you have a perl object does not mean that the corresponding
166	very rare events, as handlers are (obviously) called for I<all> objects in	497	C-level object still exists. If you try to access an object that has no
167	the game.	498	valid C counterpart anymore you get an exception at runtime. This method
168		499	can be used to test for existence of the C object part without causing an
169	=item cf::attach_to_players ...	500	exception.
170
171	Attach handlers to all players.
172
173	=item cf::attach_to_maps ...
174
175	Attach handlers to all maps.
176
177	=item cf:register_attachment $name, ...
178		501
179	=cut	502	=cut
180		503
181	# the following variables are defined in .xs and must not be re-created	504	# the following variables are defined in .xs and must not be re-created
182	our @CB_GLOBAL = (); # registry for all global events	505	our @CB_GLOBAL = (); # registry for all global events
		506	our @CB_ATTACHABLE = (); # registry for all attachables
183	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	507	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
184	our @CB_PLAYER = ();	508	our @CB_PLAYER = ();
		509	our @CB_CLIENT = ();
185	our @CB_TYPE = (); # registry for type (cf-object class) based events	510	our @CB_TYPE = (); # registry for type (cf-object class) based events
186	our @CB_MAP = ();	511	our @CB_MAP = ();
187		512
188	my %attachment;	513	my %attachment;
189		514
		515	sub cf::attachable::thawer_merge {
		516	# simply override everything except _meta
		517	local $_[0]{_meta};
		518	%{$_[0]} = %{$_[1]};
		519	}
		520
190	sub _attach_cb($\%$$$) {	521	sub _attach_cb($$$$) {
191	my ($registry, $undo, $event, $prio, $cb) = @_;	522	my ($registry, $event, $prio, $cb) = @_;
192		523
193	use sort 'stable';	524	use sort 'stable';
194		525
195	$cb = [$prio, $cb];	526	$cb = [$prio, $cb];
196		527
197	@{$registry->[$event]} = sort	528	@{$registry->[$event]} = sort
198	{ $a->[0] cmp $b->[0] }	529	{ $a->[0] cmp $b->[0] }
199	@{$registry->[$event] || []}, $cb;	530	@{$registry->[$event] || []}, $cb;
200
201	push @{$undo->{cb}}, [$event, $cb];
202	}	531	}
		532
		533	# hack
		534	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
203		535
204	# attach handles attaching event callbacks	536	# attach handles attaching event callbacks
205	# the only thing the caller has to do is pass the correct	537	# the only thing the caller has to do is pass the correct
206	# registry (== where the callback attaches to).	538	# registry (== where the callback attaches to).
207	sub _attach(\@$@) {	539	sub _attach {
208	my ($registry, $klass, @arg) = @_;	540	my ($registry, $klass, @arg) = @_;
209		541
		542	my $object_type;
210	my $prio = 0;	543	my $prio = 0;
211
212	my %undo = (
213	registry => $registry,
214	cb => [],
215	);
216
217	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	544	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		545
		546	#TODO: get rid of this hack
		547	if ($attachable_klass{$klass}) {
		548	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		549	}
218		550
219	while (@arg) {	551	while (@arg) {
220	my $type = shift @arg;	552	my $type = shift @arg;
221		553
222	if ($type eq "prio") {	554	if ($type eq "prio") {
223	$prio = shift @arg;	555	$prio = shift @arg;
224		556
		557	} elsif ($type eq "type") {
		558	$object_type = shift @arg;
		559	$registry = $CB_TYPE[$object_type] ||= [];
		560
		561	} elsif ($type eq "subtype") {
		562	defined $object_type or Carp::croak "subtype specified without type";
		563	my $object_subtype = shift @arg;
		564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		565
225	} elsif ($type eq "package") {	566	} elsif ($type eq "package") {
226	my $pkg = shift @arg;	567	my $pkg = shift @arg;
227		568
228	while (my ($name, $id) = each %cb_id) {	569	while (my ($name, $id) = each %cb_id) {
229	if (my $cb = $pkg->can ($name)) {	570	if (my $cb = $pkg->can ($name)) {
230	_attach_cb $registry, %undo, $id, $prio, $cb;	571	_attach_cb $registry, $id, $prio, $cb;
231	}	572	}
232	}	573	}
233		574
234	} elsif (exists $cb_id{$type}) {	575	} elsif (exists $cb_id{$type}) {
235	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;	576	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
236		577
237	} elsif (ref $type) {	578	} elsif (ref $type) {
238	warn "attaching objects not supported, ignoring.\n";	579	warn "attaching objects not supported, ignoring.\n";
239		580
240	} else {	581	} else {
241	shift @arg;	582	shift @arg;
242	warn "attach argument '$type' not supported, ignoring.\n";	583	warn "attach argument '$type' not supported, ignoring.\n";
243	}	584	}
244	}	585	}
245
246	\%undo
247	}	586	}
248		587
249	sub _attach_attachment {	588	sub _object_attach {
250	my ($obj, $name, @args) = @_;	589	my ($obj, $name, %arg) = @_;
251		590
252	my $res;	591	return if exists $obj->{_attachment}{$name};
253		592
254	if (my $attach = $attachment{$name}) {	593	if (my $attach = $attachment{$name}) {
255	my $registry = $obj->registry;	594	my $registry = $obj->registry;
256		595
257	for (@$attach) {	596	for (@$attach) {
258	my ($klass, @attach) = @$_;	597	my ($klass, @attach) = @$_;
259	$res = _attach @$registry, $klass, @attach;	598	_attach $registry, $klass, @attach;
260	}
261
262	if (my $cb = delete $registry->[EVENT_OBJECT_INSTANTIATE]) {
263	for (@$cb) {
264	eval { $_->[1]->($obj, @args); };
265	if ($@) {
266	warn "$@";
267	warn "... while processing '$name' instantiate with args <@args>.\n";
268	}
269	}	599	}
270	}	600
		601	$obj->{$name} = \%arg;
271	} else {	602	} else {
272	warn "object uses attachment '$name' that is not available, postponing.\n";	603	warn "object uses attachment '$name' that is not available, postponing.\n";
273	}	604	}
274		605
275	push @{$obj->{_attachment}}, $name;	606	$obj->{_attachment}{$name} = undef;
276
277	$res->{attachment} = $name;
278	$res
279	}	607	}
280		608
281	sub cf::object::attach {	609	sub cf::attachable::attach {
		610	if (ref $_[0]) {
		611	_object_attach @_;
		612	} else {
		613	_attach shift->_attach_registry, @_;
		614	}
		615	};
		616
		617	# all those should be optimised
		618	sub cf::attachable::detach {
282	my ($obj, $name, @args) = @_;	619	my ($obj, $name) = @_;
283		620
284	_attach_attachment $obj, $name, @args;	621	if (ref $obj) {
285	}	622	delete $obj->{_attachment}{$name};
		623	reattach ($obj);
		624	} else {
		625	Carp::croak "cannot, currently, detach class attachments";
		626	}
		627	};
286		628
287	sub cf::player::attach {	629	sub cf::attachable::attached {
288	my ($obj, $name, @args) = @_;	630	my ($obj, $name) = @_;
289		631
290	_attach_attachment KLASS_PLAYER, $obj, $name, @args;	632	exists $obj->{_attachment}{$name}
291	}	633	}
292		634
293	sub cf::map::attach {	635	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
294	my ($obj, $name, @args) = @_;	636	eval "#line " . __LINE__ . " 'cf.pm'
		637	sub cf::\L$klass\E::_attach_registry {
		638	(\\\@CB_$klass, KLASS_$klass)
		639	}
295		640
296	_attach_attachment KLASS_MAP, $obj, $name, @args;	641	sub cf::\L$klass\E::attachment {
297	}
298
299	sub attach_global {
300	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
301	}
302
303	sub attach_to_type {
304	my $type = shift;
305	my $subtype = shift;
306
307	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
308	}
309
310	sub attach_to_objects {
311	_attach @CB_OBJECT, KLASS_OBJECT, @_
312	}
313
314	sub attach_to_players {
315	_attach @CB_PLAYER, KLASS_PLAYER, @_
316	}
317
318	sub attach_to_maps {
319	_attach @CB_MAP, KLASS_MAP, @_
320	}
321
322	sub register_attachment {
323	my $name = shift;	642	my \$name = shift;
324		643
325	$attachment{$name} = [[KLASS_OBJECT, @_]];	644	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		645	}
		646	";
		647	die if $@;
326	}	648	}
327		649
328	our $override;	650	our $override;
329	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	651	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
330		652
…		…
344	for (@$callbacks) {	666	for (@$callbacks) {
345	eval { &{$_->[1]} };	667	eval { &{$_->[1]} };
346		668
347	if ($@) {	669	if ($@) {
348	warn "$@";	670	warn "$@";
349	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	671	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
350	override;	672	override;
351	}	673	}
352		674
353	return 1 if $override;	675	return 1 if $override;
354	}	676	}
355		677
356	0	678	0
357	}	679	}
		680
		681	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		682
		683	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		684
		685	Generate an object-specific event with the given arguments.
		686
		687	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		688	removed in future versions), and there is no public API to access override
		689	results (if you must, access C<@cf::invoke_results> directly).
		690
		691	=back
		692
		693	=cut
358		694
359	#############################################################################	695	#############################################################################
360	# object support	696	# object support
361		697
362	sub instantiate {
363	my ($obj, $data) = @_;
364
365	$data = from_json $data;
366
367	for (@$data) {
368	my ($name, $args) = @$_;
369	attach $obj, $name, @{$args || [] };
370	}
371	}
372
373	# basically do the same as instantiate, without calling instantiate
374	sub reattach {	698	sub reattach {
		699	# basically do the same as instantiate, without calling instantiate
375	my ($obj) = @_;	700	my ($obj) = @_;
		701
		702	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		703
376	my $registry = $obj->registry;	704	my $registry = $obj->registry;
377		705
378	@$registry = ();	706	@$registry = ();
379		707
		708	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		709
380	for my $name (@{ $obj->{_attachment} }) {	710	for my $name (keys %{ $obj->{_attachment} || {} }) {
381	if (my $attach = $attachment{$name}) {	711	if (my $attach = $attachment{$name}) {
382	for (@$attach) {	712	for (@$attach) {
383	my ($klass, @attach) = @$_;	713	my ($klass, @attach) = @$_;
384	_attach @$registry, $klass, @attach;	714	_attach $registry, $klass, @attach;
385	}	715	}
386	} else {	716	} else {
387	warn "object uses attachment '$name' that is not available, postponing.\n";	717	warn "object uses attachment '$name' that is not available, postponing.\n";
388	}	718	}
389	}	719	}
390	}	720	}
391		721
		722	cf::attachable->attach (
		723	prio => -1000000,
		724	on_instantiate => sub {
		725	my ($obj, $data) = @_;
		726
		727	$data = from_json $data;
		728
		729	for (@$data) {
		730	my ($name, $args) = @$_;
		731
		732	$obj->attach ($name, %{$args || {} });
		733	}
		734	},
		735	on_reattach => \&reattach,
		736	on_clone => sub {
		737	my ($src, $dst) = @_;
		738
		739	@{$dst->registry} = @{$src->registry};
		740
		741	%$dst = %$src;
		742
		743	%{$dst->{_attachment}} = %{$src->{_attachment}}
		744	if exists $src->{_attachment};
		745	},
		746	);
		747
392	sub object_freezer_save {	748	sub object_freezer_save {
393	my ($filename, $objs) = @_;	749	my ($filename, $rdata, $objs) = @_;
394		750
395	$filename .= ".pst";	751	sync_job {
		752	if (length $$rdata) {
		753	warn sprintf "saving %s (%d,%d)\n",
		754	$filename, length $$rdata, scalar @$objs;
396		755
397	if (@$objs) {	756	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
398	open my $fh, ">:raw", "$filename~";	757	chmod SAVE_MODE, $fh;
399	chmod $fh, SAVE_MODE;	758	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
400	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	759	aio_fsync $fh if $cf::USE_FSYNC;
401	close $fh;	760	close $fh;
		761
		762	if (@$objs) {
		763	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		764	chmod SAVE_MODE, $fh;
		765	my $data = Storable::nfreeze { version => 1, objs => $objs };
		766	aio_write $fh, 0, (length $data), $data, 0;
		767	aio_fsync $fh if $cf::USE_FSYNC;
		768	close $fh;
		769	aio_rename "$filename.pst~", "$filename.pst";
		770	}
		771	} else {
		772	aio_unlink "$filename.pst";
		773	}
		774
402	rename "$filename~", $filename;	775	aio_rename "$filename~", $filename;
		776	} else {
		777	warn "FATAL: $filename~: $!\n";
		778	}
403	} else {	779	} else {
404	unlink $filename;	780	aio_unlink $filename;
		781	aio_unlink "$filename.pst";
		782	}
		783
		784	#d##TODO# nuke non .map-files if exist
		785	if ($filename =~ s/\.map$//) {
		786	aio_unlink $filename;
		787	aio_unlink "$filename.pst";
		788	}
405	}	789	}
		790	}
		791
		792	sub object_freezer_as_string {
		793	my ($rdata, $objs) = @_;
		794
		795	use Data::Dumper;
		796
		797	$$rdata . Dumper $objs
406	}	798	}
407		799
408	sub object_thawer_load {	800	sub object_thawer_load {
409	my ($filename) = @_;	801	my ($filename) = @_;
410		802
411	open my $fh, "<:raw:perlio", "$filename.pst"	803	my ($data, $av);
		804
		805	#d#TODO remove .map if file does not exist
		806	aio_stat $filename and $filename =~ s/\.map$//;
		807
		808	(aio_load $filename, $data) >= 0
412	or return;	809	or return;
413		810
414	eval { local $/; (Storable::thaw <$fh>)->{objs} }	811	unless (aio_stat "$filename.pst") {
415	}	812	(aio_load "$filename.pst", $av) >= 0
416		813	or return;
417	attach_to_objects	814	$av = eval { (Storable::thaw $av)->{objs} };
418	prio => -1000000,
419	on_clone => sub {
420	my ($src, $dst) = @_;
421
422	@{$dst->registry} = @{$src->registry};
423
424	%$dst = %$src;
425
426	$dst->{_attachment} = [@{ $src->{_attachment} }]
427	if exists $src->{_attachment};
428	},	815	}
429	;	816
		817	warn sprintf "loading %s (%d)\n",
		818	$filename, length $data, scalar @{$av || []};#d#
		819	return ($data, $av);
		820	}
430		821
431	#############################################################################	822	#############################################################################
432	# old plug-in events	823	# command handling &c
433		824
434	sub inject_event {	825	=item cf::register_command $name => \&callback($ob,$args);
435	my $extension = shift;
436	my $event_code = shift;
437		826
438	my $cb = $hook[$event_code]{$extension}	827	Register a callback for execution when the client sends the user command
439	or return;	828	$name.
440		829
441	&$cb	830	=cut
442	}
443
444	sub inject_global_event {
445	my $event = shift;
446
447	my $cb = $hook[$event]
448	or return;
449
450	List::Util::max map &$_, values %$cb
451	}
452
453	sub inject_command {
454	my ($name, $obj, $params) = @_;
455
456	for my $cmd (@{ $command{$name} }) {
457	$cmd->[1]->($obj, $params);
458	}
459
460	-1
461	}
462		831
463	sub register_command {	832	sub register_command {
464	my ($name, $time, $cb) = @_;	833	my ($name, $cb) = @_;
465		834
466	my $caller = caller;	835	my $caller = caller;
467	#warn "registering command '$name/$time' to '$caller'";	836	#warn "registering command '$name/$time' to '$caller'";
468		837
469	push @{ $command{$name} }, [$time, $cb, $caller];	838	push @{ $COMMAND{$name} }, [$caller, $cb];
470	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
471	}	839	}
		840
		841	=item cf::register_extcmd $name => \&callback($pl,$packet);
		842
		843	Register a callbackf ro execution when the client sends an extcmd packet.
		844
		845	If the callback returns something, it is sent back as if reply was being
		846	called.
		847
		848	=cut
472		849
473	sub register_extcmd {	850	sub register_extcmd {
474	my ($name, $cb) = @_;	851	my ($name, $cb) = @_;
475		852
476	my $caller = caller;	853	$EXTCMD{$name} = $cb;
477	#warn "registering extcmd '$name' to '$caller'";
478
479	$extcmd{$name} = [$cb, $caller];
480	}	854	}
481		855
482	sub register {	856	cf::player->attach (
483	my ($base, $pkg) = @_;	857	on_command => sub {
		858	my ($pl, $name, $params) = @_;
484		859
485	#TODO	860	my $cb = $COMMAND{$name}
486	}	861	or return;
		862
		863	for my $cmd (@$cb) {
		864	$cmd->[1]->($pl->ob, $params);
		865	}
		866
		867	cf::override;
		868	},
		869	on_extcmd => sub {
		870	my ($pl, $buf) = @_;
		871
		872	my $msg = eval { from_json $buf };
		873
		874	if (ref $msg) {
		875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		876	if (my %reply = $cb->($pl, $msg)) {
		877	$pl->ext_reply ($msg->{msgid}, %reply);
		878	}
		879	}
		880	} else {
		881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		882	}
		883
		884	cf::override;
		885	},
		886	);
487		887
488	sub load_extension {	888	sub load_extension {
489	my ($path) = @_;	889	my ($path) = @_;
490		890
491	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
492	my $base = $1;	892	my $base = $1;
493	my $pkg = $1;	893	my $pkg = $1;
494	$pkg =~ s/[^[:word:]]/_/g;	894	$pkg =~ s/[^[:word:]]/_/g;
495	$pkg = "ext::$pkg";	895	$pkg = "ext::$pkg";
496		896
497	warn "loading '$path' into '$pkg'\n";	897	warn "... loading '$path' into '$pkg'\n";
498		898
499	open my $fh, "<:utf8", $path	899	open my $fh, "<:utf8", $path
500	or die "$path: $!";	900	or die "$path: $!";
501		901
502	my $source =	902	my $source =
503	"package $pkg; use strict; use utf8;\n"	903	"package $pkg; use strict; use utf8;\n"
504	. "#line 1 \"$path\"\n{\n"	904	. "#line 1 \"$path\"\n{\n"
505	. (do { local $/; <$fh> })	905	. (do { local $/; <$fh> })
506	. "\n};\n1";	906	. "\n};\n1";
507		907
508	eval $source	908	unless (eval $source) {
509	or die "$path: $@";	909	my $msg = $@ ? "$path: $@\n"
510		910	: "extension disabled.\n";
511	push @exts, $pkg;	911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
512	$ext_pkg{$base} = $pkg;	912	warn $@;
513		913	warn "mandatory extension failed to load, exiting.\n";
514	# no strict 'refs';	914	exit 1;
515	# @{"$pkg\::ISA"} = ext::;	915	}
516		916	die $@;
517	register $base, $pkg;
518	}
519
520	sub unload_extension {
521	my ($pkg) = @_;
522
523	warn "removing extension $pkg\n";
524
525	# remove hooks
526	#TODO
527	# for my $idx (0 .. $#PLUGIN_EVENT) {
528	# delete $hook[$idx]{$pkg};
529	# }	917	}
530		918
531	# remove commands	919	push @EXTS, $pkg;
532	for my $name (keys %command) {
533	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
534
535	if (@cb) {
536	$command{$name} = \@cb;
537	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
538	} else {
539	delete $command{$name};
540	delete $COMMAND{"$name\000"};
541	}
542	}
543
544	# remove extcmds
545	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
546	delete $extcmd{$name};
547	}
548
549	if (my $cb = $pkg->can ("unload")) {
550	eval {
551	$cb->($pkg);
552	1
553	} or warn "$pkg unloaded, but with errors: $@";
554	}
555
556	Symbol::delete_package $pkg;
557	}	920	}
558		921
559	sub load_extensions {	922	sub load_extensions {
560	my $LIBDIR = maps_directory "perl";
561
562	for my $ext (<$LIBDIR/*.ext>) {	923	for my $ext (<$LIBDIR/*.ext>) {
563	next unless -r $ext;	924	next unless -r $ext;
564	eval {	925	eval {
565	load_extension $ext;	926	load_extension $ext;
566	1	927	1
567	} or warn "$ext not loaded: $@";	928	} or warn "$ext not loaded: $@";
568	}	929	}
569	}	930	}
570		931
571	sub _perl_reload(&) {	932	#############################################################################
		933
		934	=head2 CORE EXTENSIONS
		935
		936	Functions and methods that extend core crossfire objects.
		937
		938	=cut
		939
		940	package cf::player;
		941
		942	use Coro::AIO;
		943
		944	=head3 cf::player
		945
		946	=over 4
		947
		948	=item cf::player::find $login
		949
		950	Returns the given player object, loading it if necessary (might block).
		951
		952	=cut
		953
		954	sub playerdir($) {
		955	cf::localdir
		956	. "/"
		957	. cf::playerdir
		958	. "/"
		959	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		960	}
		961
		962	sub path($) {
		963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		964
		965	(playerdir $login) . "/$login.pl"
		966	}
		967
		968	sub find_active($) {
		969	$cf::PLAYER{$_[0]}
		970	and $cf::PLAYER{$_[0]}->active
		971	and $cf::PLAYER{$_[0]}
		972	}
		973
		974	sub exists($) {
		975	my ($login) = @_;
		976
		977	$cf::PLAYER{$login}
		978	or cf::sync_job { !aio_stat path $login }
		979	}
		980
		981	sub find($) {
		982	return $cf::PLAYER{$_[0]} || do {
		983	my $login = $_[0];
		984
		985	my $guard = cf::lock_acquire "user_find:$login";
		986
		987	$cf::PLAYER{$_[0]} || do {
		988	my $pl = load_pl path $login
		989	or return;
		990	$cf::PLAYER{$login} = $pl
		991	}
		992	}
		993	}
		994
		995	sub save($) {
		996	my ($pl) = @_;
		997
		998	return if $pl->{deny_save};
		999
		1000	my $path = path $pl;
		1001	my $guard = cf::lock_acquire "user_save:$path";
		1002
		1003	return if $pl->{deny_save};
		1004
		1005	aio_mkdir playerdir $pl, 0770;
		1006	$pl->{last_save} = $cf::RUNTIME;
		1007
		1008	$pl->save_pl ($path);
		1009	Coro::cede;
		1010	}
		1011
		1012	sub new($) {
		1013	my ($login) = @_;
		1014
		1015	my $self = create;
		1016
		1017	$self->ob->name ($login);
		1018	$self->{deny_save} = 1;
		1019
		1020	$cf::PLAYER{$login} = $self;
		1021
		1022	$self
		1023	}
		1024
		1025	=item $pl->quit_character
		1026
		1027	Nukes the player without looking back. If logged in, the connection will
		1028	be destroyed. May block for a long time.
		1029
		1030	=cut
		1031
		1032	sub quit_character {
		1033	my ($pl) = @_;
		1034
		1035	$pl->{deny_save} = 1;
		1036	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1037
		1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1039	$pl->deactivate;
		1040	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1041	$pl->ns->destroy if $pl->ns;
		1042
		1043	my $path = playerdir $pl;
		1044	my $temp = "$path~$cf::RUNTIME~deleting~";
		1045	aio_rename $path, $temp;
		1046	delete $cf::PLAYER{$pl->ob->name};
		1047	$pl->destroy;
		1048	IO::AIO::aio_rmtree $temp;
		1049	}
		1050
		1051	=item cf::player::list_logins
		1052
		1053	Returns am arrayref of all valid playernames in the system, can take a
		1054	while and may block, so not sync_job-capable, ever.
		1055
		1056	=cut
		1057
		1058	sub list_logins {
		1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1060	or return [];
		1061
		1062	my @logins;
		1063
		1064	for my $login (@$dirs) {
		1065	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1066	aio_read $fh, 0, 512, my $buf, 0 or next;
		1067	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1068
		1069	utf8::decode $login;
		1070	push @logins, $login;
		1071	}
		1072
		1073	\@logins
		1074	}
		1075
		1076	=item $player->maps
		1077
		1078	Returns an arrayref of map paths that are private for this
		1079	player. May block.
		1080
		1081	=cut
		1082
		1083	sub maps($) {
		1084	my ($pl) = @_;
		1085
		1086	$pl = ref $pl ? $pl->ob->name : $pl;
		1087
		1088	my $files = aio_readdir playerdir $pl
		1089	or return;
		1090
		1091	my @paths;
		1092
		1093	for (@$files) {
		1094	utf8::decode $_;
		1095	next if /\.(?:pl|pst)$/;
		1096	next unless /^$PATH_SEP/o;
		1097
		1098	push @paths, cf::map::normalise "~$pl/$_";
		1099	}
		1100
		1101	\@paths
		1102	}
		1103
		1104	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1105
		1106	Sends an ext reply to the player.
		1107
		1108	=cut
		1109
		1110	sub ext_reply($$$%) {
		1111	my ($self, $id, %msg) = @_;
		1112
		1113	$msg{msgid} = $id;
		1114
		1115	$self->send ("ext " . cf::to_json \%msg);
		1116	}
		1117
		1118	package cf;
		1119
		1120	=back
		1121
		1122
		1123	=head3 cf::map
		1124
		1125	=over 4
		1126
		1127	=cut
		1128
		1129	package cf::map;
		1130
		1131	use Fcntl;
		1132	use Coro::AIO;
		1133
		1134	use overload
		1135	'""' => \&as_string,
		1136	fallback => 1;
		1137
		1138	our $MAX_RESET = 3600;
		1139	our $DEFAULT_RESET = 3000;
		1140
		1141	sub generate_random_map {
		1142	my ($self, $rmp) = @_;
		1143	# mit "rum" bekleckern, nicht
		1144	$self->_create_random_map (
		1145	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1146	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1147	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1148	$rmp->{exit_on_final_map},
		1149	$rmp->{xsize}, $rmp->{ysize},
		1150	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1151	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1152	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1153	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1154	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1155	(cf::region::find $rmp->{region}), $rmp->{custom}
		1156	)
		1157	}
		1158
		1159	=item cf::map->register ($regex, $prio)
		1160
		1161	Register a handler for the map path matching the given regex at the
		1162	givne priority (higher is better, built-in handlers have priority 0, the
		1163	default).
		1164
		1165	=cut
		1166
		1167	sub register {
		1168	my (undef, $regex, $prio) = @_;
		1169	my $pkg = caller;
		1170
		1171	no strict;
		1172	push @{"$pkg\::ISA"}, __PACKAGE__;
		1173
		1174	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1175	}
		1176
		1177	# also paths starting with '/'
		1178	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1179
		1180	sub thawer_merge {
		1181	my ($self, $merge) = @_;
		1182
		1183	# we have to keep some variables in memory intact
		1184	local $self->{path};
		1185	local $self->{load_path};
		1186	local $self->{deny_save};
		1187	local $self->{deny_reset};
		1188
		1189	$self->SUPER::thawer_merge ($merge);
		1190	}
		1191
		1192	sub normalise {
		1193	my ($path, $base) = @_;
		1194
		1195	$path = "$path"; # make sure its a string
		1196
		1197	$path =~ s/\.map$//;
		1198
		1199	# map plan:
		1200	#
		1201	# /! non-realised random map exit (special hack!)
		1202	# {... are special paths that are not being touched
		1203	# ?xxx/... are special absolute paths
		1204	# ?random/... random maps
		1205	# /... normal maps
		1206	# ~user/... per-player map of a specific user
		1207
		1208	$path =~ s/$PATH_SEP/\//go;
		1209
		1210	# treat it as relative path if it starts with
		1211	# something that looks reasonable
		1212	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1213	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1214
		1215	$base =~ s{[^/]+/?$}{};
		1216	$path = "$base/$path";
		1217	}
		1218
		1219	for ($path) {
		1220	redo if s{//}{/};
		1221	redo if s{/\.?/}{/};
		1222	redo if s{/[^/]+/\.\./}{/};
		1223	}
		1224
		1225	$path
		1226	}
		1227
		1228	sub new_from_path {
		1229	my (undef, $path, $base) = @_;
		1230
		1231	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1232
		1233	$path = normalise $path, $base;
		1234
		1235	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1236	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1237	my $self = bless cf::map::new, $pkg;
		1238	$self->{path} = $path; $self->path ($path);
		1239	$self->init; # pass $1 etc.
		1240	return $self;
		1241	}
		1242	}
		1243
		1244	Carp::carp "unable to resolve path '$path' (base '$base').";
		1245	()
		1246	}
		1247
		1248	sub init {
		1249	my ($self) = @_;
		1250
		1251	$self
		1252	}
		1253
		1254	sub as_string {
		1255	my ($self) = @_;
		1256
		1257	"$self->{path}"
		1258	}
		1259
		1260	# the displayed name, this is a one way mapping
		1261	sub visible_name {
		1262	&as_string
		1263	}
		1264
		1265	# the original (read-only) location
		1266	sub load_path {
		1267	my ($self) = @_;
		1268
		1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1270	}
		1271
		1272	# the temporary/swap location
		1273	sub save_path {
		1274	my ($self) = @_;
		1275
		1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1278	}
		1279
		1280	# the unique path, undef == no special unique path
		1281	sub uniq_path {
		1282	my ($self) = @_;
		1283
		1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1286	}
		1287
		1288	# and all this just because we cannot iterate over
		1289	# all maps in C++...
		1290	sub change_all_map_light {
		1291	my ($change) = @_;
		1292
		1293	$_->change_map_light ($change)
		1294	for grep $_->outdoor, values %cf::MAP;
		1295	}
		1296
		1297	sub unlink_save {
		1298	my ($self) = @_;
		1299
		1300	utf8::encode (my $save = $self->save_path);
		1301	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1303
		1304	#d#TODO remove .map and also nuke
		1305	$save =~ s/\.map// or return;#d#
		1306	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1308	}
		1309
		1310	sub load_header_from($) {
		1311	my ($self, $path) = @_;
		1312
		1313	utf8::encode $path;
		1314	#aio_open $path, O_RDONLY, 0
		1315	# or return;
		1316
		1317	$self->_load_header ($path)
		1318	or return;
		1319
		1320	$self->{load_path} = $path;
		1321
		1322	1
		1323	}
		1324
		1325	sub load_header_orig {
		1326	my ($self) = @_;
		1327
		1328	$self->load_header_from ($self->load_path)
		1329	}
		1330
		1331	sub load_header_temp {
		1332	my ($self) = @_;
		1333
		1334	$self->load_header_from ($self->save_path)
		1335	}
		1336
		1337	sub prepare_temp {
		1338	my ($self) = @_;
		1339
		1340	$self->last_access ((delete $self->{last_access})
		1341	|| $cf::RUNTIME); #d#
		1342	# safety
		1343	$self->{instantiate_time} = $cf::RUNTIME
		1344	if $self->{instantiate_time} > $cf::RUNTIME;
		1345	}
		1346
		1347	sub prepare_orig {
		1348	my ($self) = @_;
		1349
		1350	$self->{load_original} = 1;
		1351	$self->{instantiate_time} = $cf::RUNTIME;
		1352	$self->last_access ($cf::RUNTIME);
		1353	$self->instantiate;
		1354	}
		1355
		1356	sub load_header {
		1357	my ($self) = @_;
		1358
		1359	if ($self->load_header_temp) {
		1360	$self->prepare_temp;
		1361	} else {
		1362	$self->load_header_orig
		1363	or return;
		1364	$self->prepare_orig;
		1365	}
		1366
		1367	1
		1368	}
		1369
		1370	sub find;
		1371	sub find {
		1372	my ($path, $origin) = @_;
		1373
		1374	$path = normalise $path, $origin && $origin->path;
		1375
		1376	cf::lock_wait "map_find:$path";
		1377
		1378	$cf::MAP{$path} || do {
		1379	my $guard = cf::lock_acquire "map_find:$path";
		1380	my $map = new_from_path cf::map $path
		1381	or return;
		1382
		1383	$map->{last_save} = $cf::RUNTIME;
		1384
		1385	$map->load_header
		1386	or return;
		1387
		1388	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1389	# doing this can freeze the server in a sync job, obviously
		1390	#$cf::WAIT_FOR_TICK->wait;
		1391	$map->reset;
		1392	undef $guard;
		1393	return find $path;
		1394	}
		1395
		1396	$cf::MAP{$path} = $map
		1397	}
		1398	}
		1399
		1400	sub pre_load { }
		1401	sub post_load { }
		1402
		1403	sub load {
		1404	my ($self) = @_;
		1405
		1406	local $self->{deny_reset} = 1; # loading can take a long time
		1407
		1408	my $path = $self->{path};
		1409	my $guard = cf::lock_acquire "map_load:$path";
		1410
		1411	return if $self->in_memory != cf::MAP_SWAPPED;
		1412
		1413	$self->in_memory (cf::MAP_LOADING);
		1414
		1415	$self->alloc;
		1416
		1417	$self->pre_load;
		1418
		1419	$self->_load_objects ($self->{load_path}, 1)
		1420	or return;
		1421
		1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1423	if delete $self->{load_original};
		1424
		1425	if (my $uniq = $self->uniq_path) {
		1426	utf8::encode $uniq;
		1427	if (aio_open $uniq, O_RDONLY, 0) {
		1428	$self->clear_unique_items;
		1429	$self->_load_objects ($uniq, 0);
		1430	}
		1431	}
		1432
		1433	Coro::cede;
		1434
		1435	# now do the right thing for maps
		1436	$self->link_multipart_objects;
		1437
		1438	unless ($self->{deny_activate}) {
		1439	$self->decay_objects;
		1440	$self->fix_auto_apply;
		1441	$self->update_buttons;
		1442	Coro::cede;
		1443	$self->set_darkness_map;
		1444	$self->difficulty ($self->estimate_difficulty)
		1445	unless $self->difficulty;
		1446	Coro::cede;
		1447	$self->activate;
		1448	}
		1449
		1450	$self->post_load;
		1451
		1452	$self->in_memory (cf::MAP_IN_MEMORY);
		1453	}
		1454
		1455	sub customise_for {
		1456	my ($self, $ob) = @_;
		1457
		1458	return find "~" . $ob->name . "/" . $self->{path}
		1459	if $self->per_player;
		1460
		1461	$self
		1462	}
		1463
		1464	# find and load all maps in the 3x3 area around a map
		1465	sub load_diag {
572	my ($msg) = @_;	1466	my ($map) = @_;
573		1467
574	$msg->("reloading...");	1468	my @diag; # diagonal neighbours
575		1469
576	eval {	1470	for (0 .. 3) {
577	# 1. cancel all watchers	1471	my $neigh = $map->tile_path ($_)
578	$_->cancel for Event::all_watchers;	1472	or next;
		1473	$neigh = find $neigh, $map
		1474	or next;
		1475	$neigh->load;
579		1476
580	# 2. unload all extensions	1477	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
581	for (@exts) {	1478	[$neigh->tile_path (($_ + 1) % 4), $neigh];
582	$msg->("unloading <$_>");	1479	}
583	unload_extension $_;
584	}
585		1480
586	# 3. unload all modules loaded from $LIBDIR	1481	for (@diag) {
587	while (my ($k, $v) = each %INC) {	1482	my $neigh = find @$_
588	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1483	or next;
		1484	$neigh->load;
		1485	}
		1486	}
589		1487
590	$msg->("removing <$k>");	1488	sub find_sync {
591	delete $INC{$k};	1489	my ($path, $origin) = @_;
592		1490
593	$k =~ s/\.pm$//;	1491	cf::sync_job { find $path, $origin }
594	$k =~ s/\//::/g;	1492	}
595		1493
596	if (my $cb = $k->can ("unload_module")) {	1494	sub do_load_sync {
597	$cb->();	1495	my ($map) = @_;
		1496
		1497	cf::sync_job { $map->load };
		1498	}
		1499
		1500	our %MAP_PREFETCH;
		1501	our $MAP_PREFETCHER = undef;
		1502
		1503	sub find_async {
		1504	my ($path, $origin) = @_;
		1505
		1506	$path = normalise $path, $origin && $origin->{path};
		1507
		1508	if (my $map = $cf::MAP{$path}) {
		1509	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1510	}
		1511
		1512	undef $MAP_PREFETCH{$path};
		1513	$MAP_PREFETCHER ||= cf::async {
		1514	while (%MAP_PREFETCH) {
		1515	for my $path (keys %MAP_PREFETCH) {
		1516	my $map = find $path
		1517	or next;
		1518	$map->load;
		1519
		1520	delete $MAP_PREFETCH{$path};
598	}	1521	}
599
600	Symbol::delete_package $k;
601	}
602
603	# 4. get rid of safe::, as good as possible
604	Symbol::delete_package "safe::$_"
605	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
606
607	# 5. remove register_script_function callbacks
608	# TODO
609		1522	}
610	# 6. unload cf.pm "a bit"	1523	undef $MAP_PREFETCHER;
611	delete $INC{"cf.pm"};
612
613	# don't, removes xs symbols, too,
614	# and global variables created in xs
615	#Symbol::delete_package __PACKAGE__;
616
617	# 7. reload cf.pm
618	$msg->("reloading cf.pm");
619	require cf;
620	};	1524	};
621	$msg->($@) if $@;	1525	$MAP_PREFETCHER->prio (6);
622		1526
623	$msg->("reloaded");	1527	()
624	};	1528	}
625		1529
626	sub perl_reload() {	1530	sub save {
627	_perl_reload {	1531	my ($self) = @_;
628	warn $_[0];	1532
629	print "$_[0]\n";	1533	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1534
		1535	$self->{last_save} = $cf::RUNTIME;
		1536
		1537	return unless $self->dirty;
		1538
		1539	my $save = $self->save_path; utf8::encode $save;
		1540	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1541
		1542	$self->{load_path} = $save;
		1543
		1544	return if $self->{deny_save};
		1545
		1546	local $self->{last_access} = $self->last_access;#d#
		1547
		1548	cf::async {
		1549	$_->contr->save for $self->players;
630	};	1550	};
631	}
632		1551
633	register_command "perl-reload", 0, sub {	1552	if ($uniq) {
634	my ($who, $arg) = @_;	1553	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
635		1554	$self->_save_objects ($uniq, cf::IO_UNIQUES);
636	if ($who->flag (FLAG_WIZ)) {
637	_perl_reload {
638	warn $_[0];
639	$who->message ($_[0]);
640	};
641	}
642	};
643
644	#############################################################################
645	# extcmd framework, basically convert ext <msg>
646	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
647
648	attach_to_players
649	on_extcmd => sub {
650	my ($pl, $buf) = @_;
651
652	my $msg = eval { from_json $buf };
653
654	if (ref $msg) {
655	if (my $cb = $extcmd{$msg->{msgtype}}) {
656	if (my %reply = $cb->[0]->($pl, $msg)) {
657	$pl->ext_reply ($msg->{msgid}, %reply);
658	}
659	}
660	} else {	1555	} else {
661	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1556	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
662	}
663
664	cf::override;
665	},	1557	}
666	;	1558	}
667		1559
668	#############################################################################	1560	sub swap_out {
669	# load/save/clean perl data associated with a map
670
671	*cf::mapsupport::on_clean = sub {
672	my ($map) = @_;	1561	my ($self) = @_;
673		1562
674	my $path = $map->tmpname;	1563	# save first because save cedes
675	defined $path or return;	1564	$self->save;
676		1565
677	unlink "$path.cfperl";	1566	my $lock = cf::lock_acquire "map_data:" . $self->path;
678	unlink "$path.pst";
679	};
680		1567
681	*cf::mapsupport::on_swapin =	1568	return if $self->players;
682	*cf::mapsupport::on_load = sub {	1569	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1570	return if $self->{deny_save};
		1571
		1572	$self->clear;
		1573	$self->in_memory (cf::MAP_SWAPPED);
		1574	}
		1575
		1576	sub reset_at {
683	my ($map) = @_;	1577	my ($self) = @_;
684		1578
685	my $path = $map->tmpname;	1579	# TODO: safety, remove and allow resettable per-player maps
686	$path = $map->path unless defined $path;	1580	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1581	return 1e99 if $self->{deny_reset};
687		1582
688	open my $fh, "<:raw", "$path.cfperl"	1583	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
689	or return; # no perl data	1584	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
690		1585
691	my $data = Storable::thaw do { local $/; <$fh> };	1586	$time + $to
		1587	}
692		1588
693	$data->{version} <= 1	1589	sub should_reset {
		1590	my ($self) = @_;
		1591
		1592	$self->reset_at <= $cf::RUNTIME
		1593	}
		1594
		1595	sub reset {
		1596	my ($self) = @_;
		1597
		1598	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1599
		1600	return if $self->players;
		1601	return if $self->isa ("ext::map_per_player");#d#
		1602
		1603	warn "resetting map ", $self->path;#d#
		1604
		1605	delete $cf::MAP{$self->path};
		1606
		1607	$self->in_memory (cf::MAP_SWAPPED);
		1608	$self->clear;
		1609
		1610	$_->clear_links_to ($self) for values %cf::MAP;
		1611
		1612	$self->unlink_save;
		1613	$self->destroy;
		1614	}
		1615
		1616	my $nuke_counter = "aaaa";
		1617
		1618	sub nuke {
		1619	my ($self) = @_;
		1620
		1621	delete $cf::MAP{$self->path};
		1622
		1623	$self->unlink_save;
		1624
		1625	bless $self, "cf::map";
		1626	delete $self->{deny_reset};
		1627	$self->{deny_save} = 1;
		1628	$self->reset_timeout (1);
		1629	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1630
		1631	$cf::MAP{$self->path} = $self;
		1632
		1633	$self->reset; # polite request, might not happen
		1634	}
		1635
		1636	=item cf::map::unique_maps
		1637
		1638	Returns an arrayref of paths of all shared maps that have
		1639	instantiated unique items. May block.
		1640
		1641	=cut
		1642
		1643	sub unique_maps() {
		1644	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
694	or return; # too new	1645	or return;
695		1646
696	$map->_set_obs ($data->{obs});	1647	my @paths;
697	};
698		1648
699	attach_to_maps prio => -10000, package => cf::mapsupport::;	1649	for (@$files) {
		1650	utf8::decode $_;
		1651	next if /\.pst$/;
		1652	next unless /^$PATH_SEP/o;
700		1653
701	#############################################################################	1654	push @paths, cf::map::normalise $_;
702	# load/save perl data associated with player->ob objects
703
704	sub all_objects(@) {
705	@_, map all_objects ($_->inv), @_
706	}
707
708	attach_to_players
709	on_load => sub {
710	my ($pl, $path) = @_;
711
712	for my $o (all_objects $pl->ob) {
713	if (my $value = $o->get_ob_key_value ("_perl_data")) {
714	$o->set_ob_key_value ("_perl_data");
715
716	%$o = %{ Storable::thaw pack "H*", $value };
717	}
718	}
719	},	1655	}
720	;
721		1656
722	#############################################################################	1657	\@paths
723	# core extensions - in perl
724
725	=item cf::player::exists $login
726
727	Returns true when the given account exists.
728
729	=cut
730
731	sub cf::player::exists($) {
732	cf::player::find $_[0]
733	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
734	}	1658	}
735		1659
		1660	package cf;
		1661
		1662	=back
		1663
		1664	=head3 cf::object
		1665
		1666	=cut
		1667
		1668	package cf::object;
		1669
		1670	=over 4
		1671
		1672	=item $ob->inv_recursive
		1673
		1674	Returns the inventory of the object _and_ their inventories, recursively.
		1675
		1676	=cut
		1677
		1678	sub inv_recursive_;
		1679	sub inv_recursive_ {
		1680	map { $_, inv_recursive_ $_->inv } @_
		1681	}
		1682
		1683	sub inv_recursive {
		1684	inv_recursive_ inv $_[0]
		1685	}
		1686
		1687	package cf;
		1688
		1689	=back
		1690
		1691	=head3 cf::object::player
		1692
		1693	=over 4
		1694
736	=item $player->reply ($npc, $msg[, $flags])	1695	=item $player_object->reply ($npc, $msg[, $flags])
737		1696
738	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1697	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
739	can be C<undef>. Does the right thing when the player is currently in a	1698	can be C<undef>. Does the right thing when the player is currently in a
740	dialogue with the given NPC character.	1699	dialogue with the given NPC character.
741		1700
742	=cut	1701	=cut
743		1702
744	# rough implementation of a future "reply" method that works	1703	# rough implementation of a future "reply" method that works
745	# with dialog boxes.	1704	# with dialog boxes.
		1705	#TODO: the first argument must go, split into a $npc->reply_to ( method
746	sub cf::object::player::reply($$$;$) {	1706	sub cf::object::player::reply($$$;$) {
747	my ($self, $npc, $msg, $flags) = @_;	1707	my ($self, $npc, $msg, $flags) = @_;
748		1708
749	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1709	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
750		1710
…		…
754	$msg = $npc->name . " says: $msg" if $npc;	1714	$msg = $npc->name . " says: $msg" if $npc;
755	$self->message ($msg, $flags);	1715	$self->message ($msg, $flags);
756	}	1716	}
757	}	1717	}
758		1718
759	=item $player->ext_reply ($msgid, $msgtype, %msg)	1719	=item $player_object->may ("access")
760		1720
761	Sends an ext reply to the player.	1721	Returns wether the given player is authorized to access resource "access"
		1722	(e.g. "command_wizcast").
762		1723
763	=cut	1724	=cut
764		1725
765	sub cf::player::ext_reply($$$%) {	1726	sub cf::object::player::may {
		1727	my ($self, $access) = @_;
		1728
		1729	$self->flag (cf::FLAG_WIZ) ||
		1730	(ref $cf::CFG{"may_$access"}
		1731	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1732	: $cf::CFG{"may_$access"})
		1733	}
		1734
		1735	=item $player_object->enter_link
		1736
		1737	Freezes the player and moves him/her to a special map (C<{link}>).
		1738
		1739	The player should be reasonably safe there for short amounts of time. You
		1740	I<MUST> call C<leave_link> as soon as possible, though.
		1741
		1742	Will never block.
		1743
		1744	=item $player_object->leave_link ($map, $x, $y)
		1745
		1746	Moves the player out of the special C<{link}> map onto the specified
		1747	map. If the map is not valid (or omitted), the player will be moved back
		1748	to the location he/she was before the call to C<enter_link>, or, if that
		1749	fails, to the emergency map position.
		1750
		1751	Might block.
		1752
		1753	=cut
		1754
		1755	sub link_map {
		1756	unless ($LINK_MAP) {
		1757	$LINK_MAP = cf::map::find "{link}"
		1758	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1759	$LINK_MAP->load;
		1760	}
		1761
		1762	$LINK_MAP
		1763	}
		1764
		1765	sub cf::object::player::enter_link {
		1766	my ($self) = @_;
		1767
		1768	$self->deactivate_recursive;
		1769
		1770	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1771
		1772	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1773	if $self->map;
		1774
		1775	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1776	}
		1777
		1778	sub cf::object::player::leave_link {
		1779	my ($self, $map, $x, $y) = @_;
		1780
		1781	my $link_pos = delete $self->{_link_pos};
		1782
		1783	unless ($map) {
		1784	# restore original map position
		1785	($map, $x, $y) = @{ $link_pos || [] };
		1786	$map = cf::map::find $map;
		1787
		1788	unless ($map) {
		1789	($map, $x, $y) = @$EMERGENCY_POSITION;
		1790	$map = cf::map::find $map
		1791	or die "FATAL: cannot load emergency map\n";
		1792	}
		1793	}
		1794
		1795	($x, $y) = (-1, -1)
		1796	unless (defined $x) && (defined $y);
		1797
		1798	# use -1 or undef as default coordinates, not 0, 0
		1799	($x, $y) = ($map->enter_x, $map->enter_y)
		1800	if $x <=0 && $y <= 0;
		1801
		1802	$map->load;
		1803	$map->load_diag;
		1804
		1805	return unless $self->contr->active;
		1806	$self->activate_recursive;
		1807	$self->enter_map ($map, $x, $y);
		1808	}
		1809
		1810	cf::player->attach (
		1811	on_logout => sub {
		1812	my ($pl) = @_;
		1813
		1814	# abort map switching before logout
		1815	if ($pl->ob->{_link_pos}) {
		1816	cf::sync_job {
		1817	$pl->ob->leave_link
		1818	};
		1819	}
		1820	},
		1821	on_login => sub {
		1822	my ($pl) = @_;
		1823
		1824	# try to abort aborted map switching on player login :)
		1825	# should happen only on crashes
		1826	if ($pl->ob->{_link_pos}) {
		1827	$pl->ob->enter_link;
		1828	(async {
		1829	# we need this sleep as the login has a concurrent enter_exit running
		1830	# and this sleep increases chances of the player not ending up in scorn
		1831	$pl->ob->reply (undef,
		1832	"There was an internal problem at your last logout, "
		1833	. "the server will try to bring you to your intended destination in a second.",
		1834	cf::NDI_RED);
		1835	Coro::Timer::sleep 1;
		1836	$pl->ob->leave_link;
		1837	})->prio (2);
		1838	}
		1839	},
		1840	);
		1841
		1842	=item $player_object->goto ($path, $x, $y)
		1843
		1844	=cut
		1845
		1846	sub cf::object::player::goto {
		1847	my ($self, $path, $x, $y) = @_;
		1848
		1849	$self->enter_link;
		1850
		1851	(async {
		1852	my $map = eval {
		1853	my $map = cf::map::find $path;
		1854	$map = $map->customise_for ($self) if $map;
		1855	$map
		1856	} or
		1857	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1858
		1859	$self->leave_link ($map, $x, $y);
		1860	})->prio (1);
		1861	}
		1862
		1863	=item $player_object->enter_exit ($exit_object)
		1864
		1865	=cut
		1866
		1867	sub parse_random_map_params {
		1868	my ($spec) = @_;
		1869
		1870	my $rmp = { # defaults
		1871	xsize => (cf::rndm 15, 40),
		1872	ysize => (cf::rndm 15, 40),
		1873	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1874	#layout => string,
		1875	};
		1876
		1877	for (split /\n/, $spec) {
		1878	my ($k, $v) = split /\s+/, $_, 2;
		1879
		1880	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1881	}
		1882
		1883	$rmp
		1884	}
		1885
		1886	sub prepare_random_map {
		1887	my ($exit) = @_;
		1888
		1889	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1890
		1891	# all this does is basically replace the /! path by
		1892	# a new random map path (?random/...) with a seed
		1893	# that depends on the exit object
		1894
		1895	my $rmp = parse_random_map_params $exit->msg;
		1896
		1897	if ($exit->map) {
		1898	$rmp->{region} = $exit->region->name;
		1899	$rmp->{origin_map} = $exit->map->path;
		1900	$rmp->{origin_x} = $exit->x;
		1901	$rmp->{origin_y} = $exit->y;
		1902	}
		1903
		1904	$rmp->{random_seed} ||= $exit->random_seed;
		1905
		1906	my $data = cf::to_json $rmp;
		1907	my $md5 = Digest::MD5::md5_hex $data;
		1908	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1909
		1910	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1911	aio_write $fh, 0, (length $data), $data, 0;
		1912	undef $fh;
		1913	aio_rename "$meta~", $meta;
		1914
		1915	$exit->slaying ("?random/$md5");
		1916	$exit->msg (undef);
		1917	}
		1918	}
		1919
		1920	sub cf::object::player::enter_exit {
766	my ($self, $id, %msg) = @_;	1921	my ($self, $exit) = @_;
767		1922
768	$msg{msgid} = $id;	1923	return unless $self->type == cf::PLAYER;
769		1924
770	$self->send ("ext " . to_json \%msg);	1925	if ($exit->slaying eq "/!") {
771	}	1926	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1927	cf::sync_job { prepare_random_map $exit };
		1928	}
772		1929
773	#############################################################################	1930	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
774	# map scripting support	1931	my $hp = $exit->stats->hp;
		1932	my $sp = $exit->stats->sp;
		1933
		1934	$self->enter_link;
		1935
		1936	(async {
		1937	$self->deactivate_recursive; # just to be sure
		1938	unless (eval {
		1939	$self->goto ($slaying, $hp, $sp);
		1940
		1941	1;
		1942	}) {
		1943	$self->message ("Something went wrong deep within the crossfire server. "
		1944	. "I'll try to bring you back to the map you were before. "
		1945	. "Please report this to the dungeon master!",
		1946	cf::NDI_UNIQUE | cf::NDI_RED);
		1947
		1948	warn "ERROR in enter_exit: $@";
		1949	$self->leave_link;
		1950	}
		1951	})->prio (1);
		1952	}
		1953
		1954	=head3 cf::client
		1955
		1956	=over 4
		1957
		1958	=item $client->send_drawinfo ($text, $flags)
		1959
		1960	Sends a drawinfo packet to the client. Circumvents output buffering so
		1961	should not be used under normal circumstances.
		1962
		1963	=cut
		1964
		1965	sub cf::client::send_drawinfo {
		1966	my ($self, $text, $flags) = @_;
		1967
		1968	utf8::encode $text;
		1969	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1970	}
		1971
		1972
		1973	=item $success = $client->query ($flags, "text", \&cb)
		1974
		1975	Queues a query to the client, calling the given callback with
		1976	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1977	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1978
		1979	Queries can fail, so check the return code. Or don't, as queries will become
		1980	reliable at some point in the future.
		1981
		1982	=cut
		1983
		1984	sub cf::client::query {
		1985	my ($self, $flags, $text, $cb) = @_;
		1986
		1987	return unless $self->state == ST_PLAYING
		1988	|| $self->state == ST_SETUP
		1989	|| $self->state == ST_CUSTOM;
		1990
		1991	$self->state (ST_CUSTOM);
		1992
		1993	utf8::encode $text;
		1994	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1995
		1996	$self->send_packet ($self->{query_queue}[0][0])
		1997	if @{ $self->{query_queue} } == 1;
		1998	}
		1999
		2000	cf::client->attach (
		2001	on_reply => sub {
		2002	my ($ns, $msg) = @_;
		2003
		2004	# this weird shuffling is so that direct followup queries
		2005	# get handled first
		2006	my $queue = delete $ns->{query_queue}
		2007	or return; # be conservative, not sure how that can happen, but we saw a crash here
		2008
		2009	(shift @$queue)->[1]->($msg);
		2010	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
		2011
		2012	push @{ $ns->{query_queue} }, @$queue;
		2013
		2014	if (@{ $ns->{query_queue} } == @$queue) {
		2015	if (@$queue) {
		2016	$ns->send_packet ($ns->{query_queue}[0][0]);
		2017	} else {
		2018	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		2019	}
		2020	}
		2021	},
		2022	);
		2023
		2024	=item $client->async (\&cb)
		2025
		2026	Create a new coroutine, running the specified callback. The coroutine will
		2027	be automatically cancelled when the client gets destroyed (e.g. on logout,
		2028	or loss of connection).
		2029
		2030	=cut
		2031
		2032	sub cf::client::async {
		2033	my ($self, $cb) = @_;
		2034
		2035	my $coro = &Coro::async ($cb);
		2036
		2037	$coro->on_destroy (sub {
		2038	delete $self->{_coro}{$coro+0};
		2039	});
		2040
		2041	$self->{_coro}{$coro+0} = $coro;
		2042
		2043	$coro
		2044	}
		2045
		2046	cf::client->attach (
		2047	on_destroy => sub {
		2048	my ($ns) = @_;
		2049
		2050	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		2051	},
		2052	);
		2053
		2054	=back
		2055
		2056
		2057	=head2 SAFE SCRIPTING
		2058
		2059	Functions that provide a safe environment to compile and execute
		2060	snippets of perl code without them endangering the safety of the server
		2061	itself. Looping constructs, I/O operators and other built-in functionality
		2062	is not available in the safe scripting environment, and the number of
		2063	functions and methods that can be called is greatly reduced.
		2064
		2065	=cut
775		2066
776	our $safe = new Safe "safe";	2067	our $safe = new Safe "safe";
777	our $safe_hole = new Safe::Hole;	2068	our $safe_hole = new Safe::Hole;
778		2069
779	$SIG{FPE} = 'IGNORE';	2070	$SIG{FPE} = 'IGNORE';
780		2071
781	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2072	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
782		2073
783	# here we export the classes and methods available to script code	2074	# here we export the classes and methods available to script code
784		2075
		2076	=pod
		2077
		2078	The following fucntions and emthods are available within a safe environment:
		2079
		2080	cf::object contr pay_amount pay_player map
		2081	cf::object::player player
		2082	cf::player peaceful
		2083	cf::map trigger
		2084
		2085	=cut
		2086
785	for (	2087	for (
786	["cf::object" => qw(contr pay_amount pay_player)],	2088	["cf::object" => qw(contr pay_amount pay_player map)],
787	["cf::object::player" => qw(player)],	2089	["cf::object::player" => qw(player)],
788	["cf::player" => qw(peaceful)],	2090	["cf::player" => qw(peaceful)],
		2091	["cf::map" => qw(trigger)],
789	) {	2092	) {
790	no strict 'refs';	2093	no strict 'refs';
791	my ($pkg, @funs) = @$_;	2094	my ($pkg, @funs) = @$_;
792	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	2095	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
793	for @funs;	2096	for @funs;
794	}	2097	}
		2098
		2099	=over 4
		2100
		2101	=item @retval = safe_eval $code, [var => value, ...]
		2102
		2103	Compiled and executes the given perl code snippet. additional var/value
		2104	pairs result in temporary local (my) scalar variables of the given name
		2105	that are available in the code snippet. Example:
		2106
		2107	my $five = safe_eval '$first + $second', first => 1, second => 4;
		2108
		2109	=cut
795		2110
796	sub safe_eval($;@) {	2111	sub safe_eval($;@) {
797	my ($code, %vars) = @_;	2112	my ($code, %vars) = @_;
798		2113
799	my $qcode = $code;	2114	my $qcode = $code;
…		…
822	}	2137	}
823		2138
824	wantarray ? @res : $res[0]	2139	wantarray ? @res : $res[0]
825	}	2140	}
826		2141
		2142	=item cf::register_script_function $function => $cb
		2143
		2144	Register a function that can be called from within map/npc scripts. The
		2145	function should be reasonably secure and should be put into a package name
		2146	like the extension.
		2147
		2148	Example: register a function that gets called whenever a map script calls
		2149	C<rent::overview>, as used by the C<rent> extension.
		2150
		2151	cf::register_script_function "rent::overview" => sub {
		2152	...
		2153	};
		2154
		2155	=cut
		2156
827	sub register_script_function {	2157	sub register_script_function {
828	my ($fun, $cb) = @_;	2158	my ($fun, $cb) = @_;
829		2159
830	no strict 'refs';	2160	no strict 'refs';
831	*{"safe::$fun"} = $safe_hole->wrap ($cb);	2161	*{"safe::$fun"} = $safe_hole->wrap ($cb);
832	}	2162	}
833		2163
		2164	=back
		2165
		2166	=cut
		2167
834	#############################################################################	2168	#############################################################################
835	# the server's main()	2169
		2170	=head2 EXTENSION DATABASE SUPPORT
		2171
		2172	Crossfire maintains a very simple database for extension use. It can
		2173	currently store anything that can be serialised using Storable, which
		2174	excludes objects.
		2175
		2176	The parameter C<$family> should best start with the name of the extension
		2177	using it, it should be unique.
		2178
		2179	=over 4
		2180
		2181	=item $hashref = cf::db_get $family
		2182
		2183	Return a hashref for use by the extension C<$family>, which can be
		2184	modified. After modifications, you have to call C<cf::db_dirty> or
		2185	C<cf::db_sync>.
		2186
		2187	=item $value = cf::db_get $family => $key
		2188
		2189	Returns a single value from the database
		2190
		2191	=item cf::db_put $family => $hashref
		2192
		2193	Stores the given family hashref into the database. Updates are delayed, if
		2194	you want the data to be synced to disk immediately, use C<cf::db_sync>.
		2195
		2196	=item cf::db_put $family => $key => $value
		2197
		2198	Stores the given C<$value> in the family hash. Updates are delayed, if you
		2199	want the data to be synced to disk immediately, use C<cf::db_sync>.
		2200
		2201	=item cf::db_dirty
		2202
		2203	Marks the database as dirty, to be updated at a later time.
		2204
		2205	=item cf::db_sync
		2206
		2207	Immediately write the database to disk I<if it is dirty>.
		2208
		2209	=cut
		2210
		2211	our $DB;
		2212
		2213	{
		2214	my $path = cf::localdir . "/database.pst";
		2215
		2216	sub db_load() {
		2217	$DB = stat $path ? Storable::retrieve $path : { };
		2218	}
		2219
		2220	my $pid;
		2221
		2222	sub db_save() {
		2223	waitpid $pid, 0 if $pid;
		2224	if (0 == ($pid = fork)) {
		2225	$DB->{_meta}{version} = 1;
		2226	Storable::nstore $DB, "$path~";
		2227	rename "$path~", $path;
		2228	cf::_exit 0 if defined $pid;
		2229	}
		2230	}
		2231
		2232	my $dirty;
		2233
		2234	sub db_sync() {
		2235	db_save if $dirty;
		2236	undef $dirty;
		2237	}
		2238
		2239	my $idle = Event->idle (
		2240	reentrant => 0,
		2241	min => 10,
		2242	max => 20,
		2243	repeat => 0,
		2244	data => WF_AUTOCANCEL,
		2245	cb => \&db_sync,
		2246	);
		2247
		2248	sub db_dirty() {
		2249	$dirty = 1;
		2250	$idle->start;
		2251	}
		2252
		2253	sub db_get($;$) {
		2254	@_ >= 2
		2255	? $DB->{$_[0]}{$_[1]}
		2256	: ($DB->{$_[0]} ||= { })
		2257	}
		2258
		2259	sub db_put($$;$) {
		2260	if (@_ >= 3) {
		2261	$DB->{$_[0]}{$_[1]} = $_[2];
		2262	} else {
		2263	$DB->{$_[0]} = $_[1];
		2264	}
		2265	db_dirty;
		2266	}
		2267
		2268	cf::global->attach (
		2269	prio => 10000,
		2270	on_cleanup => sub {
		2271	db_sync;
		2272	},
		2273	);
		2274	}
		2275
		2276	#############################################################################
		2277	# the server's init and main functions
		2278
		2279	sub load_resources {
		2280	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2281	or die "unable to load regions file\n";#d#
		2282	}
		2283
		2284	sub cfg_load {
		2285	open my $fh, "<:utf8", cf::confdir . "/config"
		2286	or return;
		2287
		2288	local $/;
		2289	*CFG = YAML::Syck::Load <$fh>;
		2290
		2291	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2292
		2293	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2294	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2295
		2296	if (exists $CFG{mlockall}) {
		2297	eval {
		2298	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2299	and die "WARNING: m(un)lockall failed: $!\n";
		2300	};
		2301	warn $@ if $@;
		2302	}
		2303	}
		2304
		2305	sub init {
		2306	load_resources;
		2307	}
836		2308
837	sub main {	2309	sub main {
		2310	# we must not ever block the main coroutine
		2311	local $Coro::idle = sub {
		2312	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2313	(async {
		2314	Event::one_event;
		2315	})->prio (Coro::PRIO_MAX);
		2316	};
		2317
		2318	cfg_load;
		2319	db_load;
		2320	load_extensions;
		2321
		2322	$TICK_WATCHER->start;
838	Event::loop;	2323	Event::loop;
839	}	2324	}
840		2325
841	#############################################################################	2326	#############################################################################
842	# initialisation	2327	# initialisation and cleanup
843		2328
844	register "<global>", __PACKAGE__;	2329	# install some emergency cleanup handlers
		2330	BEGIN {
		2331	for my $signal (qw(INT HUP TERM)) {
		2332	Event->signal (
		2333	reentrant => 0,
		2334	data => WF_AUTOCANCEL,
		2335	signal => $signal,
		2336	prio => 0,
		2337	cb => sub {
		2338	cf::cleanup "SIG$signal";
		2339	},
		2340	);
		2341	}
		2342	}
		2343
		2344	sub emergency_save() {
		2345	my $freeze_guard = cf::freeze_mainloop;
		2346
		2347	warn "enter emergency perl save\n";
		2348
		2349	cf::sync_job {
		2350	# use a peculiar iteration method to avoid tripping on perl
		2351	# refcount bugs in for. also avoids problems with players
		2352	# and maps saved/destroyed asynchronously.
		2353	warn "begin emergency player save\n";
		2354	for my $login (keys %cf::PLAYER) {
		2355	my $pl = $cf::PLAYER{$login} or next;
		2356	$pl->valid or next;
		2357	$pl->save;
		2358	}
		2359	warn "end emergency player save\n";
		2360
		2361	warn "begin emergency map save\n";
		2362	for my $path (keys %cf::MAP) {
		2363	my $map = $cf::MAP{$path} or next;
		2364	$map->valid or next;
		2365	$map->save;
		2366	}
		2367	warn "end emergency map save\n";
		2368	};
		2369
		2370	warn "leave emergency perl save\n";
		2371	}
		2372
		2373	sub reload() {
		2374	# can/must only be called in main
		2375	if ($Coro::current != $Coro::main) {
		2376	warn "can only reload from main coroutine";
		2377	return;
		2378	}
		2379
		2380	warn "reloading...";
		2381
		2382	warn "cancelling server ticker";
		2383	$TICK_WATCHER->cancel;
		2384
		2385	cf::emergency_save;
		2386
		2387	eval {
		2388	# if anything goes wrong in here, we should simply crash as we already saved
		2389
		2390	warn "syncing database to disk";
		2391	cf::db_sync;
		2392
		2393	warn "cancelling all WF_AUTOCANCEL watchers";
		2394	for (Event::all_watchers) {
		2395	$_->cancel if $_->data & WF_AUTOCANCEL;
		2396	}
		2397
		2398	warn "flushing outstanding aio requests";
		2399	for (;;) {
		2400	IO::AIO::flush;
		2401	Coro::cede;
		2402	last unless IO::AIO::nreqs;
		2403	warn "iterate...";
		2404	}
		2405
		2406	warn "cancelling all extension coros";
		2407	$_->cancel for values %EXT_CORO;
		2408	%EXT_CORO = ();
		2409
		2410	warn "removing commands";
		2411	%COMMAND = ();
		2412
		2413	warn "removing ext commands";
		2414	%EXTCMD = ();
		2415
		2416	warn "unloading/nuking all extensions";
		2417	for my $pkg (@EXTS) {
		2418	warn "... unloading $pkg";
		2419
		2420	if (my $cb = $pkg->can ("unload")) {
		2421	eval {
		2422	$cb->($pkg);
		2423	1
		2424	} or warn "$pkg unloaded, but with errors: $@";
		2425	}
		2426
		2427	warn "... nuking $pkg";
		2428	Symbol::delete_package $pkg;
		2429	}
		2430
		2431	warn "unloading all perl modules loaded from $LIBDIR";
		2432	while (my ($k, $v) = each %INC) {
		2433	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		2434
		2435	warn "... unloading $k";
		2436	delete $INC{$k};
		2437
		2438	$k =~ s/\.pm$//;
		2439	$k =~ s/\//::/g;
		2440
		2441	if (my $cb = $k->can ("unload_module")) {
		2442	$cb->();
		2443	}
		2444
		2445	Symbol::delete_package $k;
		2446	}
		2447
		2448	warn "getting rid of safe::, as good as possible";
		2449	Symbol::delete_package "safe::$_"
		2450	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		2451
		2452	warn "unloading cf.pm \"a bit\"";
		2453	delete $INC{"cf.pm"};
		2454
		2455	# don't, removes xs symbols, too,
		2456	# and global variables created in xs
		2457	#Symbol::delete_package __PACKAGE__;
		2458
		2459	warn "unload completed, starting to reload now";
		2460
		2461	warn "reloading cf.pm";
		2462	require cf;
		2463	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
		2464
		2465	warn "loading config and database again";
		2466	cf::cfg_load;
		2467	cf::db_load;
		2468
		2469	warn "loading extensions";
		2470	cf::load_extensions;
		2471
		2472	warn "reattaching attachments to objects/players";
		2473	_global_reattach;
		2474	warn "reattaching attachments to maps";
		2475	reattach $_ for values %MAP;
		2476
		2477	warn "loading reloadable resources";
		2478	load_resources;
		2479
		2480	warn "restarting server ticker";
		2481
		2482	$TICK_WATCHER->start;
		2483	};
		2484
		2485	if ($@) {
		2486	warn $@;
		2487	warn "error while reloading, exiting.";
		2488	exit 1;
		2489	}
		2490
		2491	warn "reloaded";
		2492	};
		2493
		2494	our $RELOAD_WATCHER; # used only during reload
		2495
		2496	register_command "reload" => sub {
		2497	my ($who, $arg) = @_;
		2498
		2499	if ($who->flag (FLAG_WIZ)) {
		2500	$who->message ("reloading server.");
		2501
		2502	# doing reload synchronously and two reloads happen back-to-back,
		2503	# coro crashes during coro_state_free->destroy here.
		2504
		2505	$RELOAD_WATCHER ||= Event->timer (
		2506	reentrant => 0,
		2507	after => 0,
		2508	data => WF_AUTOCANCEL,
		2509	cb => sub {
		2510	reload;
		2511	undef $RELOAD_WATCHER;
		2512	},
		2513	);
		2514	}
		2515	};
845		2516
846	unshift @INC, $LIBDIR;	2517	unshift @INC, $LIBDIR;
847		2518
848	load_extensions;	2519	my $bug_warning = 0;
849		2520
850	$TICK_WATCHER = Event->timer (	2521	$TICK_WATCHER = Event->timer (
		2522	reentrant => 0,
		2523	parked => 1,
851	prio => 1,	2524	prio => 0,
852	at => $NEXT_TICK || 1,	2525	at => $NEXT_TICK || $TICK,
		2526	data => WF_AUTOCANCEL,
853	cb => sub {	2527	cb => sub {
		2528	if ($Coro::current != $Coro::main) {
		2529	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2530	unless ++$bug_warning > 10;
		2531	return;
		2532	}
		2533
		2534	$NOW = Event::time;
		2535
854	cf::server_tick; # one server iteration	2536	cf::server_tick; # one server iteration
855		2537	$RUNTIME += $TICK;
856	my $NOW = Event::time;
857	$NEXT_TICK += $TICK;	2538	$NEXT_TICK += $TICK;
858		2539
		2540	$WAIT_FOR_TICK->broadcast;
		2541	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2542
		2543	Event::sweep;
		2544	Coro::cede_notself;
		2545
		2546	# my $AFTER = Event::time;
		2547	# warn $AFTER - $NOW;#d#
		2548
859	# if we are delayed by four ticks, skip them all	2549	# if we are delayed by four ticks or more, skip them all
860	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2550	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
861		2551
862	$TICK_WATCHER->at ($NEXT_TICK);	2552	$TICK_WATCHER->at ($NEXT_TICK);
863	$TICK_WATCHER->start;	2553	$TICK_WATCHER->start;
864	},	2554	},
865	);	2555	);
866		2556
867	_reload_2;	2557	IO::AIO::max_poll_time $TICK * 0.1;
		2558
		2559	undef $Coro::AIO::WATCHER;
		2560	$AIO_POLL_WATCHER = Event->io (
		2561	reentrant => 0,
		2562	fd => IO::AIO::poll_fileno,
		2563	poll => 'r',
		2564	prio => 6,
		2565	data => WF_AUTOCANCEL,
		2566	cb => \&IO::AIO::poll_cb,
		2567	);
		2568
		2569	$WRITE_RUNTIME_WATCHER = Event->timer (
		2570	reentrant => 0,
		2571	data => WF_AUTOCANCEL,
		2572	after => 1,
		2573	interval => 10,
		2574	prio => 6, # keep it lowest so it acts like a watchdog
		2575	cb => Coro::unblock_sub {
		2576	write_runtime
		2577	or warn "ERROR: unable to write runtime file: $!";
		2578	},
		2579	);
		2580
		2581	END { cf::emergency_save }
868		2582
869	1	2583	1
870		2584

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines