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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.45 by root, Sat Aug 26 23:36:32 2006 UTC vs.
Revision 1.220 by root, Sat Feb 17 23:54:35 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 BDB ();
		21	use Data::Dumper;
		22	use Digest::MD5;
		23	use Fcntl;
		24	use IO::AIO 2.32 ();
		25	use YAML::Syck ();
10	use Time::HiRes;	26	use Time::HiRes;
11	use Event;	27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		30
12	$Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
13		32
14	use strict;	33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
15		34
		35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
		36	$YAML::Syck::ImplicitUnicode = 1;
		37
		38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		39
16	our %COMMAND = ();	40	our %COMMAND = ();
		41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
		44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
		47
17	our @EVENT;	48	our @EVENT;
18	our %PROP_TYPE;	49	our $LIBDIR = datadir . "/ext";
19	our %PROP_IDX;
20	our $LIBDIR = maps_directory "perl";
21		50
22	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
23	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
24	our $NEXT_TICK;	55	our $NEXT_TICK;
		56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
		61
		62	our %CFG;
		63
		64	our $UPTIME; $UPTIME ||= time;
		65	our $RUNTIME;
		66
		67	our %PLAYER; # all users
		68	our %MAP; # all maps
		69	our $LINK_MAP; # the special {link} map, which is always available
		70	our $RANDOM_MAPS = cf::localdir . "/random";
		71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		78
		79	binmode STDOUT;
		80	binmode STDERR;
		81
		82	# read virtual server time, if available
		83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		84	open my $fh, "<", cf::localdir . "/runtime"
		85	or die "unable to read runtime file: $!";
		86	$RUNTIME = <$fh> + 0.;
		87	}
		88
		89	mkdir cf::localdir;
		90	mkdir cf::localdir . "/" . cf::playerdir;
		91	mkdir cf::localdir . "/" . cf::tmpdir;
		92	mkdir cf::localdir . "/" . cf::uniquedir;
		93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
		95
		96	our $EMERGENCY_POSITION;
		97
		98	sub cf::map::normalise;
		99
		100	#############################################################################
		101
		102	=head2 GLOBAL VARIABLES
		103
		104	=over 4
		105
		106	=item $cf::UPTIME
		107
		108	The timestamp of the server start (so not actually an uptime).
		109
		110	=item $cf::RUNTIME
		111
		112	The time this server has run, starts at 0 and is increased by $cf::TICK on
		113	every server tick.
		114
		115	=item $cf::LIBDIR
		116
		117	The perl library directory, where extensions and cf-specific modules can
		118	be found. It will be added to C<@INC> automatically.
		119
		120	=item $cf::NOW
		121
		122	The time of the last (current) server tick.
		123
		124	=item $cf::TICK
		125
		126	The interval between server ticks, in seconds.
		127
		128	=item %cf::CFG
		129
		130	Configuration for the server, loaded from C</etc/crossfire/config>, or
		131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
		139
		140	=back
		141
		142	=cut
25		143
26	BEGIN {	144	BEGIN {
27	*CORE::GLOBAL::warn = sub {	145	*CORE::GLOBAL::warn = sub {
28	my $msg = join "", @_;	146	my $msg = join "", @_;
		147	utf8::encode $msg;
		148
29	$msg .= "\n"	149	$msg .= "\n"
30	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
31		151
32	print STDERR "cfperl: $msg";
33	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
34	};	153	};
35	}	154	}
36		155
37	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
38		157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
39	# generate property mutators	158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
40	sub prop_gen {	159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
41	my ($prefix, $class) = @_;	160	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
42
43	no strict 'refs';
44
45	for my $prop (keys %PROP_TYPE) {
46	$prop =~ /^\Q$prefix\E_(.*$)/ or next;
47	my $sub = lc $1;
48
49	my $type = $PROP_TYPE{$prop};
50	my $idx = $PROP_IDX {$prop};
51
52	*{"$class\::get_$sub"} = *{"$class\::$sub"} = sub {
53	$_[0]->get_property ($type, $idx)
54	};
55
56	*{"$class\::set_$sub"} = sub {
57	$_[0]->set_property ($type, $idx, $_[1]);
58	} unless $ignore_set{$prop};
59	}
60	}
61
62	# auto-generate most of the API
63
64	prop_gen OBJECT_PROP => "cf::object";
65	# CFAPI_OBJECT_ANIMATION?
66	prop_gen PLAYER_PROP => "cf::object::player";
67
68	prop_gen MAP_PROP => "cf::map";
69	prop_gen ARCH_PROP => "cf::arch";
70
71	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	161	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
72		162
73	# we bless all objects into (empty) derived classes to force a method lookup	163	# we bless all objects into (empty) derived classes to force a method lookup
74	# within the Safe compartment.	164	# within the Safe compartment.
75	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {	165	for my $pkg (qw(
		166	cf::global cf::attachable
		167	cf::object cf::object::player
		168	cf::client cf::player
		169	cf::arch cf::living
		170	cf::map cf::party cf::region
		171	)) {
76	no strict 'refs';	172	no strict 'refs';
77	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
78	}	174	}
79		175
80	$Event::DIED = sub {	176	$Event::DIED = sub {
81	warn "error in event callback: @_";	177	warn "error in event callback: @_";
82	};	178	};
83		179
84	my %ext_pkg;	180	=head2 UTILITY FUNCTIONS
85	my @exts;
86	my @hook;
87	my %command;
88	my %extcmd;
89		181
90	#############################################################################	182	=over 4
91	# utility functions	183
		184	=item dumpval $ref
		185
		186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
92		206
93	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
		208
		209	=item $ref = cf::from_json $json
		210
		211	Converts a JSON string into the corresponding perl data structure.
		212
		213	=cut
94		214
95	sub from_json($) {	215	sub from_json($) {
96	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs	216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
97	JSON::Syck::Load $_[0]	217	JSON::Syck::Load $_[0]
98	}	218	}
99		219
		220	=item $json = cf::to_json $ref
		221
		222	Converts a perl data structure into its JSON representation.
		223
		224	=cut
		225
100	sub to_json($) {	226	sub to_json($) {
101	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
102	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
103	}	229	}
104		230
		231	=item cf::lock_wait $string
		232
		233	Wait until the given lock is available. See cf::lock_acquire.
		234
		235	=item my $lock = cf::lock_acquire $string
		236
		237	Wait until the given lock is available and then acquires it and returns
		238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		239	for example when the coroutine gets canceled), the lock is automatically
		240	returned.
		241
		242	Lock names should begin with a unique identifier (for example, cf::map::find
		243	uses map_find and cf::map::load uses map_load).
		244
		245	=cut
		246
		247	our %LOCK;
		248
		249	sub lock_wait($) {
		250	my ($key) = @_;
		251
		252	# wait for lock, if any
		253	while ($LOCK{$key}) {
		254	push @{ $LOCK{$key} }, $Coro::current;
		255	Coro::schedule;
		256	}
		257	}
		258
		259	sub lock_acquire($) {
		260	my ($key) = @_;
		261
		262	# wait, to be sure we are not locked
		263	lock_wait $key;
		264
		265	$LOCK{$key} = [];
		266
		267	Coro::guard {
		268	# wake up all waiters, to be on the safe side
		269	$_->ready for @{ delete $LOCK{$key} };
		270	}
		271	}
		272
		273	sub freeze_mainloop {
		274	return unless $TICK_WATCHER->is_active;
		275
		276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	};
		279	$TICK_WATCHER->stop;
		280	$guard
		281	}
		282
		283	=item cf::async { BLOCK }
		284
		285	Currently the same as Coro::async_pool, meaning you cannot use
		286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		287	thing you are allowed to do is call C<prio> on it.
		288
		289	=cut
		290
		291	BEGIN { *async = \&Coro::async_pool }
		292
		293	=item cf::sync_job { BLOCK }
		294
		295	The design of crossfire+ requires that the main coro ($Coro::main) is
		296	always able to handle events or runnable, as crossfire+ is only partly
		297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		298
		299	If it must be done, put the blocking parts into C<sync_job>. This will run
		300	the given BLOCK in another coroutine while waiting for the result. The
		301	server will be frozen during this time, so the block should either finish
		302	fast or be very important.
		303
		304	=cut
		305
		306	sub sync_job(&) {
		307	my ($job) = @_;
		308
		309	if ($Coro::current == $Coro::main) {
		310	# this is the main coro, too bad, we have to block
		311	# till the operation succeeds, freezing the server :/
		312
		313	# TODO: use suspend/resume instead
		314	# (but this is cancel-safe)
		315	my $freeze_guard = freeze_mainloop;
		316
		317	my $busy = 1;
		318	my @res;
		319
		320	(async {
		321	@res = eval { $job->() };
		322	warn $@ if $@;
		323	undef $busy;
		324	})->prio (Coro::PRIO_MAX);
		325
		326	while ($busy) {
		327	Coro::cede or Event::one_event;
		328	}
		329
		330	wantarray ? @res : $res[0]
		331	} else {
		332	# we are in another coroutine, how wonderful, everything just works
		333
		334	$job->()
		335	}
		336	}
		337
		338	=item $coro = cf::async_ext { BLOCK }
		339
		340	Like async, but this coro is automatically being canceled when the
		341	extension calling this is being unloaded.
		342
		343	=cut
		344
		345	sub async_ext(&) {
		346	my $cb = shift;
		347
		348	my $coro = &Coro::async ($cb);
		349
		350	$coro->on_destroy (sub {
		351	delete $EXT_CORO{$coro+0};
		352	});
		353	$EXT_CORO{$coro+0} = $coro;
		354
		355	$coro
		356	}
		357
		358	sub write_runtime {
		359	my $guard = cf::lock_acquire "write_runtime";
		360
		361	my $runtime = cf::localdir . "/runtime";
		362
		363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		364	or return;
		365
		366	my $value = $cf::RUNTIME + 90 + 10;
		367	# 10 is the runtime save interval, for a monotonic clock
		368	# 60 allows for the watchdog to kill the server.
		369
		370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		371	and return;
		372
		373	# always fsync - this file is important
		374	aio_fsync $fh
		375	and return;
		376
		377	close $fh
		378	or return;
		379
		380	aio_rename "$runtime~", $runtime
		381	and return;
		382
		383	1
		384	}
		385
		386	=back
		387
		388	=cut
		389
105	#############################################################################	390	#############################################################################
106	# "new" plug-in system
107		391
108	=item cf::object::attach ... # NYI	392	=head2 ATTACHABLE OBJECTS
109		393
110	=item cf::attach_global ...	394	Many objects in crossfire are so-called attachable objects. That means you can
		395	attach callbacks/event handlers (a collection of which is called an "attachment")
		396	to it. All such attachable objects support the following methods.
111		397
112	=item cf::attach_to_type $object_type, ...	398	In the following description, CLASS can be any of C<global>, C<object>
		399	C<player>, C<client> or C<map> (i.e. the attachable objects in
		400	crossfire+).
113		401
114	=item cf::attach_to_objects ...	402	=over 4
115		403
116	=item cf::attach_to_players ...	404	=item $attachable->attach ($attachment, key => $value...)
117		405
118	=item cf::attach_to_maps ...	406	=item $attachable->detach ($attachment)
119		407
		408	Attach/detach a pre-registered attachment to a specific object and give it
		409	the specified key/value pairs as arguments.
		410
		411	Example, attach a minesweeper attachment to the given object, making it a
		412	10x10 minesweeper game:
		413
		414	$obj->attach (minesweeper => width => 10, height => 10);
		415
		416	=item $bool = $attachable->attached ($name)
		417
		418	Checks wether the named attachment is currently attached to the object.
		419
		420	=item cf::CLASS->attach ...
		421
		422	=item cf::CLASS->detach ...
		423
		424	Define an anonymous attachment and attach it to all objects of the given
		425	CLASS. See the next function for an explanation of its arguments.
		426
		427	You can attach to global events by using the C<cf::global> class.
		428
		429	Example, log all player logins:
		430
		431	cf::player->attach (
		432	on_login => sub {
		433	my ($pl) = @_;
		434	...
		435	},
		436	);
		437
		438	Example, attach to the jeweler skill:
		439
		440	cf::object->attach (
		441	type => cf::SKILL,
		442	subtype => cf::SK_JEWELER,
		443	on_use_skill => sub {
		444	my ($sk, $ob, $part, $dir, $msg) = @_;
		445	...
		446	},
		447	);
		448
120	=item cf:register_attachment $name, ...	449	=item cf::CLASS::attachment $name, ...
121		450
122	prio => $number, # lower is earlier	451	Register an attachment by C<$name> through which attachable objects of the
123	on_xxx => \&cb,	452	given CLASS can refer to this attachment.
		453
		454	Some classes such as crossfire maps and objects can specify attachments
		455	that are attached at load/instantiate time, thus the need for a name.
		456
		457	These calls expect any number of the following handler/hook descriptions:
		458
		459	=over 4
		460
		461	=item prio => $number
		462
		463	Set the priority for all following handlers/hooks (unless overwritten
		464	by another C<prio> setting). Lower priority handlers get executed
		465	earlier. The default priority is C<0>, and many built-in handlers are
		466	registered at priority C<-1000>, so lower priorities should not be used
		467	unless you know what you are doing.
		468
		469	=item type => $type
		470
		471	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		472	given type of objects only (the additional parameter C<subtype> can be
		473	used to further limit to the given subtype).
		474
		475	=item on_I<event> => \&cb
		476
		477	Call the given code reference whenever the named event happens (event is
		478	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
		479	handlers are recognised generally depends on the type of object these
		480	handlers attach to).
		481
		482	See F<include/eventinc.h> for the full list of events supported, and their
		483	class.
		484
124	package => package::,	485	=item package => package::
		486
		487	Look for sub functions of the name C<< on_I<event> >> in the given
		488	package and register them. Only handlers for eevents supported by the
		489	object/class are recognised.
		490
		491	=back
		492
		493	Example, define an attachment called "sockpuppet" that calls the given
		494	event handler when a monster attacks:
		495
		496	cf::object::attachment sockpuppet =>
		497	on_skill_attack => sub {
		498	my ($self, $victim) = @_;
		499	...
		500	}
		501	}
		502
		503	=item $attachable->valid
		504
		505	Just because you have a perl object does not mean that the corresponding
		506	C-level object still exists. If you try to access an object that has no
		507	valid C counterpart anymore you get an exception at runtime. This method
		508	can be used to test for existence of the C object part without causing an
		509	exception.
125		510
126	=cut	511	=cut
127		512
128	# the following variables are defined in .xs and must not be re-created	513	# the following variables are defined in .xs and must not be re-created
129	our @CB_GLOBAL = (); # registry for all global events	514	our @CB_GLOBAL = (); # registry for all global events
		515	our @CB_ATTACHABLE = (); # registry for all attachables
130	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	516	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
131	our @CB_PLAYER = ();	517	our @CB_PLAYER = ();
		518	our @CB_CLIENT = ();
132	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
133	our @CB_MAP = ();	520	our @CB_MAP = ();
134		521
135	my %attachment;	522	my %attachment;
136		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
137	sub _attach_cb($\%$$$) {	530	sub _attach_cb($$$$) {
138	my ($registry, $undo, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
139		532
140	use sort 'stable';	533	use sort 'stable';
141		534
142	$cb = [$prio, $cb];	535	$cb = [$prio, $cb];
143		536
144	@{$registry->[$event]} = sort	537	@{$registry->[$event]} = sort
145	{ $a->[0] cmp $b->[0] }	538	{ $a->[0] cmp $b->[0] }
146	@{$registry->[$event] || []}, $cb;	539	@{$registry->[$event] || []}, $cb;
147
148	push @{$undo->{cb}}, [$event, $cb];
149	}	540	}
		541
		542	# hack
		543	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
150		544
151	# attach handles attaching event callbacks	545	# attach handles attaching event callbacks
152	# the only thing the caller has to do is pass the correct	546	# the only thing the caller has to do is pass the correct
153	# registry (== where the callback attaches to).	547	# registry (== where the callback attaches to).
154	sub _attach(\@$@) {	548	sub _attach {
155	my ($registry, $klass, @arg) = @_;	549	my ($registry, $klass, @arg) = @_;
156		550
		551	my $object_type;
157	my $prio = 0;	552	my $prio = 0;
158
159	my %undo = (
160	registry => $registry,
161	cb => [],
162	);
163
164	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	553	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		554
		555	#TODO: get rid of this hack
		556	if ($attachable_klass{$klass}) {
		557	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		558	}
165		559
166	while (@arg) {	560	while (@arg) {
167	my $type = shift @arg;	561	my $type = shift @arg;
168		562
169	if ($type eq "prio") {	563	if ($type eq "prio") {
170	$prio = shift @arg;	564	$prio = shift @arg;
171		565
		566	} elsif ($type eq "type") {
		567	$object_type = shift @arg;
		568	$registry = $CB_TYPE[$object_type] ||= [];
		569
		570	} elsif ($type eq "subtype") {
		571	defined $object_type or Carp::croak "subtype specified without type";
		572	my $object_subtype = shift @arg;
		573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		574
172	} elsif ($type eq "package") {	575	} elsif ($type eq "package") {
173	my $pkg = shift @arg;	576	my $pkg = shift @arg;
174		577
175	while (my ($name, $id) = each %cb_id) {	578	while (my ($name, $id) = each %cb_id) {
176	if (my $cb = $pkg->can ($name)) {	579	if (my $cb = $pkg->can ($name)) {
177	_attach_cb $registry, %undo, $id, $prio, $cb;	580	_attach_cb $registry, $id, $prio, $cb;
178	}	581	}
179	}	582	}
180		583
181	} elsif (exists $cb_id{$type}) {	584	} elsif (exists $cb_id{$type}) {
182	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;	585	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
183		586
184	} elsif (ref $type) {	587	} elsif (ref $type) {
185	warn "attaching objects not supported, ignoring.\n";	588	warn "attaching objects not supported, ignoring.\n";
186		589
187	} else {	590	} else {
188	shift @arg;	591	shift @arg;
189	warn "attach argument '$type' not supported, ignoring.\n";	592	warn "attach argument '$type' not supported, ignoring.\n";
190	}	593	}
191	}	594	}
192
193	\%undo
194	}	595	}
195		596
196	sub cf::object::attach {	597	sub _object_attach {
197	die;	598	my ($obj, $name, %arg) = @_;
198	}
199		599
200	sub attach_global {	600	return if exists $obj->{_attachment}{$name};
201	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
202	}
203		601
204	sub attach_to_type {	602	if (my $attach = $attachment{$name}) {
205	my $type = shift;	603	my $registry = $obj->registry;
206		604
207	_attach @{$CB_TYPE[$type]}, KLASS_OBJECT, @_	605	for (@$attach) {
208	}	606	my ($klass, @attach) = @$_;
		607	_attach $registry, $klass, @attach;
		608	}
209		609
210	sub attach_to_objects {	610	$obj->{$name} = \%arg;
211	_attach @CB_OBJECT, KLASS_OBJECT, @_	611	} else {
212	}	612	warn "object uses attachment '$name' that is not available, postponing.\n";
		613	}
213		614
214	sub attach_to_players {	615	$obj->{_attachment}{$name} = undef;
215	_attach @CB_PLAYER, KLASS_PLAYER, @_
216	}	616	}
217		617
218	sub attach_to_maps {	618	sub cf::attachable::attach {
219	_attach @CB_MAP, KLASS_MAP, @_	619	if (ref $_[0]) {
220	}	620	_object_attach @_;
		621	} else {
		622	_attach shift->_attach_registry, @_;
		623	}
		624	};
221		625
222	sub register_attachment {	626	# all those should be optimised
		627	sub cf::attachable::detach {
		628	my ($obj, $name) = @_;
		629
		630	if (ref $obj) {
		631	delete $obj->{_attachment}{$name};
		632	reattach ($obj);
		633	} else {
		634	Carp::croak "cannot, currently, detach class attachments";
		635	}
		636	};
		637
		638	sub cf::attachable::attached {
		639	my ($obj, $name) = @_;
		640
		641	exists $obj->{_attachment}{$name}
		642	}
		643
		644	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		645	eval "#line " . __LINE__ . " 'cf.pm'
		646	sub cf::\L$klass\E::_attach_registry {
		647	(\\\@CB_$klass, KLASS_$klass)
		648	}
		649
		650	sub cf::\L$klass\E::attachment {
223	my $name = shift;	651	my \$name = shift;
224		652
225	$attachment{$name} = [@_];	653	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		654	}
		655	";
		656	die if $@;
226	}	657	}
227		658
228	our $override;	659	our $override;
229	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	660	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
230		661
…		…
244	for (@$callbacks) {	675	for (@$callbacks) {
245	eval { &{$_->[1]} };	676	eval { &{$_->[1]} };
246		677
247	if ($@) {	678	if ($@) {
248	warn "$@";	679	warn "$@";
249	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	680	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
250	override;	681	override;
251	}	682	}
252		683
253	return 1 if $override;	684	return 1 if $override;
254	}	685	}
255		686
256	0	687	0
257	}	688	}
		689
		690	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		691
		692	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		693
		694	Generate an object-specific event with the given arguments.
		695
		696	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		697	removed in future versions), and there is no public API to access override
		698	results (if you must, access C<@cf::invoke_results> directly).
		699
		700	=back
		701
		702	=cut
258		703
259	#############################################################################	704	#############################################################################
260	# object support	705	# object support
261		706
262	sub instantiate {	707	sub reattach {
		708	# basically do the same as instantiate, without calling instantiate
263	my ($obj, $data) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		712
264	my $registry = $obj->registry;	713	my $registry = $obj->registry;
265		714
266	$data = from_json $data;	715	@$registry = ();
267		716
268	for (@$data) {	717	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
269	my ($pri, $name, @args) = @$_;
270		718
		719	for my $name (keys %{ $obj->{_attachment} || {} }) {
271	if (my $attach = $attachment{$name}) {	720	if (my $attach = $attachment{$name}) {
		721	for (@$attach) {
		722	my ($klass, @attach) = @$_;
272	_attach @$registry, KLASS_OBJECT, @$attach;	723	_attach $registry, $klass, @attach;
		724	}
		725	} else {
		726	warn "object uses attachment '$name' that is not available, postponing.\n";
		727	}
		728	}
		729	}
273		730
274	if (my $cb = delete $registry->[EVENT_OBJECT_INSTANTIATE]) {	731	cf::attachable->attach (
		732	prio => -1000000,
		733	on_instantiate => sub {
		734	my ($obj, $data) = @_;
		735
		736	$data = from_json $data;
		737
		738	for (@$data) {
		739	my ($name, $args) = @$_;
		740
		741	$obj->attach ($name, %{$args || {} });
		742	}
		743	},
		744	on_reattach => \&reattach,
		745	on_clone => sub {
		746	my ($src, $dst) = @_;
		747
		748	@{$dst->registry} = @{$src->registry};
		749
		750	%$dst = %$src;
		751
		752	%{$dst->{_attachment}} = %{$src->{_attachment}}
		753	if exists $src->{_attachment};
		754	},
		755	);
		756
		757	sub object_freezer_save {
		758	my ($filename, $rdata, $objs) = @_;
		759
		760	sync_job {
		761	if (length $$rdata) {
		762	warn sprintf "saving %s (%d,%d)\n",
		763	$filename, length $$rdata, scalar @$objs;
		764
		765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		766	chmod SAVE_MODE, $fh;
		767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		768	aio_fsync $fh if $cf::USE_FSYNC;
		769	close $fh;
		770
275	for (@$cb) {	771	if (@$objs) {
276	eval { $_->[1]->($obj, @args); };	772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
277	if ($@) {	773	chmod SAVE_MODE, $fh;
278	warn "$@";	774	my $data = Storable::nfreeze { version => 1, objs => $objs };
279	warn "... while processing '$name' instantiate with args <@args>\n";	775	aio_write $fh, 0, (length $data), $data, 0;
		776	aio_fsync $fh if $cf::USE_FSYNC;
		777	close $fh;
		778	aio_rename "$filename.pst~", "$filename.pst";
280	}	779	}
		780	} else {
		781	aio_unlink "$filename.pst";
		782	}
		783
		784	aio_rename "$filename~", $filename;
		785	} else {
		786	warn "FATAL: $filename~: $!\n";
		787	}
		788	} else {
		789	aio_unlink $filename;
		790	aio_unlink "$filename.pst";
		791	}
		792	}
		793	}
		794
		795	sub object_freezer_as_string {
		796	my ($rdata, $objs) = @_;
		797
		798	use Data::Dumper;
		799
		800	$$rdata . Dumper $objs
		801	}
		802
		803	sub object_thawer_load {
		804	my ($filename) = @_;
		805
		806	my ($data, $av);
		807
		808	(aio_load $filename, $data) >= 0
		809	or return;
		810
		811	unless (aio_stat "$filename.pst") {
		812	(aio_load "$filename.pst", $av) >= 0
		813	or return;
		814	$av = eval { (Storable::thaw $av)->{objs} };
		815	}
		816
		817	warn sprintf "loading %s (%d)\n",
		818	$filename, length $data, scalar @{$av || []};#d#
		819	return ($data, $av);
		820	}
		821
		822	#############################################################################
		823	# command handling &c
		824
		825	=item cf::register_command $name => \&callback($ob,$args);
		826
		827	Register a callback for execution when the client sends the user command
		828	$name.
		829
		830	=cut
		831
		832	sub register_command {
		833	my ($name, $cb) = @_;
		834
		835	my $caller = caller;
		836	#warn "registering command '$name/$time' to '$caller'";
		837
		838	push @{ $COMMAND{$name} }, [$caller, $cb];
		839	}
		840
		841	=item cf::register_extcmd $name => \&callback($pl,$packet);
		842
		843	Register a callbackf ro execution when the client sends an extcmd packet.
		844
		845	If the callback returns something, it is sent back as if reply was being
		846	called.
		847
		848	=cut
		849
		850	sub register_extcmd {
		851	my ($name, $cb) = @_;
		852
		853	$EXTCMD{$name} = $cb;
		854	}
		855
		856	cf::player->attach (
		857	on_command => sub {
		858	my ($pl, $name, $params) = @_;
		859
		860	my $cb = $COMMAND{$name}
		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);
281	}	878	}
282	}	879	}
283	} else {	880	} else {
284	warn "object uses attachment $name that is not available, postponing.\n";	881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
285	}	882	}
286		883
287	push @{$obj->{_attachment}}, $name;	884	cf::override;
288	}
289	}
290
291	# basically do the same as instantiate, without calling instantiate
292	sub reattach {
293	my ($obj) = @_;
294	my $registry = $obj->registry;
295
296	warn "reattach<@_, $_>\n";
297	}
298
299	attach_to_objects
300	prio => -1000000,
301	on_clone => sub {
302	my ($src, $dst) = @_;
303
304	@{$dst->registry} = @{$src->registry};
305	warn "registry clone ", join ":", @{$src->registry};#d#
306
307	%$dst = %$src;
308
309	$dst->{_attachment} = [@{ $src->{_attachment} }]
310	if exists $src->{_attachment};
311
312	warn "clone<@_>\n";#d#
313	},	885	},
314	;	886	);
315
316	#############################################################################
317	# old plug-in events
318
319	sub inject_event {
320	my $extension = shift;
321	my $event_code = shift;
322
323	my $cb = $hook[$event_code]{$extension}
324	or return;
325
326	&$cb
327	}
328
329	sub inject_global_event {
330	my $event = shift;
331
332	my $cb = $hook[$event]
333	or return;
334
335	List::Util::max map &$_, values %$cb
336	}
337
338	sub inject_command {
339	my ($name, $obj, $params) = @_;
340
341	for my $cmd (@{ $command{$name} }) {
342	$cmd->[1]->($obj, $params);
343	}
344
345	-1
346	}
347
348	sub register_command {
349	my ($name, $time, $cb) = @_;
350
351	my $caller = caller;
352	#warn "registering command '$name/$time' to '$caller'";
353
354	push @{ $command{$name} }, [$time, $cb, $caller];
355	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
356	}
357
358	sub register_extcmd {
359	my ($name, $cb) = @_;
360
361	my $caller = caller;
362	#warn "registering extcmd '$name' to '$caller'";
363
364	$extcmd{$name} = [$cb, $caller];
365	}
366
367	sub register {
368	my ($base, $pkg) = @_;
369
370	#TODO
371	}
372		887
373	sub load_extension {	888	sub load_extension {
374	my ($path) = @_;	889	my ($path) = @_;
375		890
376	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
377	my $base = $1;	892	my $base = $1;
378	my $pkg = $1;	893	my $pkg = $1;
379	$pkg =~ s/[^[:word:]]/_/g;	894	$pkg =~ s/[^[:word:]]/_/g;
380	$pkg = "ext::$pkg";	895	$pkg = "ext::$pkg";
381		896
382	warn "loading '$path' into '$pkg'\n";	897	warn "... loading '$path' into '$pkg'\n";
383		898
384	open my $fh, "<:utf8", $path	899	open my $fh, "<:utf8", $path
385	or die "$path: $!";	900	or die "$path: $!";
386		901
387	my $source =	902	my $source =
388	"package $pkg; use strict; use utf8;\n"	903	"package $pkg; use strict; use utf8;\n"
389	. "#line 1 \"$path\"\n{\n"	904	. "#line 1 \"$path\"\n{\n"
390	. (do { local $/; <$fh> })	905	. (do { local $/; <$fh> })
391	. "\n};\n1";	906	. "\n};\n1";
392		907
393	eval $source	908	unless (eval $source) {
394	or die "$path: $@";	909	my $msg = $@ ? "$path: $@\n"
395		910	: "extension disabled.\n";
396	push @exts, $pkg;	911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
397	$ext_pkg{$base} = $pkg;	912	warn $@;
398		913	warn "mandatory extension failed to load, exiting.\n";
399	# no strict 'refs';	914	exit 1;
400	# @{"$pkg\::ISA"} = ext::;	915	}
401		916	die $@;
402	register $base, $pkg;
403	}
404
405	sub unload_extension {
406	my ($pkg) = @_;
407
408	warn "removing extension $pkg\n";
409
410	# remove hooks
411	#TODO
412	# for my $idx (0 .. $#PLUGIN_EVENT) {
413	# delete $hook[$idx]{$pkg};
414	# }	917	}
415		918
416	# remove commands	919	push @EXTS, $pkg;
417	for my $name (keys %command) {
418	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
419
420	if (@cb) {
421	$command{$name} = \@cb;
422	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
423	} else {
424	delete $command{$name};
425	delete $COMMAND{"$name\000"};
426	}
427	}
428
429	# remove extcmds
430	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
431	delete $extcmd{$name};
432	}
433
434	if (my $cb = $pkg->can ("unload")) {
435	eval {
436	$cb->($pkg);
437	1
438	} or warn "$pkg unloaded, but with errors: $@";
439	}
440
441	Symbol::delete_package $pkg;
442	}	920	}
443		921
444	sub load_extensions {	922	sub load_extensions {
445	my $LIBDIR = maps_directory "perl";
446
447	for my $ext (<$LIBDIR/*.ext>) {	923	for my $ext (<$LIBDIR/*.ext>) {
448	next unless -r $ext;	924	next unless -r $ext;
449	eval {	925	eval {
450	load_extension $ext;	926	load_extension $ext;
451	1	927	1
452	} or warn "$ext not loaded: $@";	928	} or warn "$ext not loaded: $@";
453	}	929	}
454	}	930	}
455		931
456	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	my $name = $pl->ob->name;
		1036
		1037	$pl->{deny_save} = 1;
		1038	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1039
		1040	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1041	$pl->deactivate;
		1042	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1043	$pl->ns->destroy if $pl->ns;
		1044
		1045	my $path = playerdir $pl;
		1046	my $temp = "$path~$cf::RUNTIME~deleting~";
		1047	aio_rename $path, $temp;
		1048	delete $cf::PLAYER{$pl->ob->name};
		1049	$pl->destroy;
		1050
		1051	my $prefix = qr<^~\Q$name\E/>;
		1052
		1053	# nuke player maps
		1054	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1055
		1056	IO::AIO::aio_rmtree $temp;
		1057	}
		1058
		1059	=item cf::player::list_logins
		1060
		1061	Returns am arrayref of all valid playernames in the system, can take a
		1062	while and may block, so not sync_job-capable, ever.
		1063
		1064	=cut
		1065
		1066	sub list_logins {
		1067	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1068	or return [];
		1069
		1070	my @logins;
		1071
		1072	for my $login (@$dirs) {
		1073	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1074	aio_read $fh, 0, 512, my $buf, 0 or next;
		1075	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1076
		1077	utf8::decode $login;
		1078	push @logins, $login;
		1079	}
		1080
		1081	\@logins
		1082	}
		1083
		1084	=item $player->maps
		1085
		1086	Returns an arrayref of map paths that are private for this
		1087	player. May block.
		1088
		1089	=cut
		1090
		1091	sub maps($) {
		1092	my ($pl) = @_;
		1093
		1094	$pl = ref $pl ? $pl->ob->name : $pl;
		1095
		1096	my $files = aio_readdir playerdir $pl
		1097	or return;
		1098
		1099	my @paths;
		1100
		1101	for (@$files) {
		1102	utf8::decode $_;
		1103	next if /\.(?:pl|pst)$/;
		1104	next unless /^$PATH_SEP/o;
		1105
		1106	push @paths, cf::map::normalise "~$pl/$_";
		1107	}
		1108
		1109	\@paths
		1110	}
		1111
		1112	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1113
		1114	Sends an ext reply to the player.
		1115
		1116	=cut
		1117
		1118	sub ext_reply($$$%) {
		1119	my ($self, $id, %msg) = @_;
		1120
		1121	$msg{msgid} = $id;
		1122
		1123	$self->send ("ext " . cf::to_json \%msg);
		1124	}
		1125
		1126	package cf;
		1127
		1128	=back
		1129
		1130
		1131	=head3 cf::map
		1132
		1133	=over 4
		1134
		1135	=cut
		1136
		1137	package cf::map;
		1138
		1139	use Fcntl;
		1140	use Coro::AIO;
		1141
		1142	use overload
		1143	'""' => \&as_string,
		1144	fallback => 1;
		1145
		1146	our $MAX_RESET = 3600;
		1147	our $DEFAULT_RESET = 3000;
		1148
		1149	sub generate_random_map {
		1150	my ($self, $rmp) = @_;
		1151	# mit "rum" bekleckern, nicht
		1152	$self->_create_random_map (
		1153	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1154	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1155	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1156	$rmp->{exit_on_final_map},
		1157	$rmp->{xsize}, $rmp->{ysize},
		1158	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1159	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1160	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1161	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1162	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1163	(cf::region::find $rmp->{region}), $rmp->{custom}
		1164	)
		1165	}
		1166
		1167	=item cf::map->register ($regex, $prio)
		1168
		1169	Register a handler for the map path matching the given regex at the
		1170	givne priority (higher is better, built-in handlers have priority 0, the
		1171	default).
		1172
		1173	=cut
		1174
		1175	sub register {
		1176	my (undef, $regex, $prio) = @_;
		1177	my $pkg = caller;
		1178
		1179	no strict;
		1180	push @{"$pkg\::ISA"}, __PACKAGE__;
		1181
		1182	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1183	}
		1184
		1185	# also paths starting with '/'
		1186	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1187
		1188	sub thawer_merge {
		1189	my ($self, $merge) = @_;
		1190
		1191	# we have to keep some variables in memory intact
		1192	local $self->{path};
		1193	local $self->{load_path};
		1194	local $self->{deny_save};
		1195	local $self->{deny_reset};
		1196
		1197	$self->SUPER::thawer_merge ($merge);
		1198	}
		1199
		1200	sub normalise {
		1201	my ($path, $base) = @_;
		1202
		1203	$path = "$path"; # make sure its a string
		1204
		1205	$path =~ s/\.map$//;
		1206
		1207	# map plan:
		1208	#
		1209	# /! non-realised random map exit (special hack!)
		1210	# {... are special paths that are not being touched
		1211	# ?xxx/... are special absolute paths
		1212	# ?random/... random maps
		1213	# /... normal maps
		1214	# ~user/... per-player map of a specific user
		1215
		1216	$path =~ s/$PATH_SEP/\//go;
		1217
		1218	# treat it as relative path if it starts with
		1219	# something that looks reasonable
		1220	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1221	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1222
		1223	$base =~ s{[^/]+/?$}{};
		1224	$path = "$base/$path";
		1225	}
		1226
		1227	for ($path) {
		1228	redo if s{//}{/};
		1229	redo if s{/\.?/}{/};
		1230	redo if s{/[^/]+/\.\./}{/};
		1231	}
		1232
		1233	$path
		1234	}
		1235
		1236	sub new_from_path {
		1237	my (undef, $path, $base) = @_;
		1238
		1239	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1240
		1241	$path = normalise $path, $base;
		1242
		1243	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1244	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1245	my $self = bless cf::map::new, $pkg;
		1246	$self->{path} = $path; $self->path ($path);
		1247	$self->init; # pass $1 etc.
		1248	return $self;
		1249	}
		1250	}
		1251
		1252	Carp::carp "unable to resolve path '$path' (base '$base').";
		1253	()
		1254	}
		1255
		1256	sub init {
		1257	my ($self) = @_;
		1258
		1259	$self
		1260	}
		1261
		1262	sub as_string {
		1263	my ($self) = @_;
		1264
		1265	"$self->{path}"
		1266	}
		1267
		1268	# the displayed name, this is a one way mapping
		1269	sub visible_name {
		1270	&as_string
		1271	}
		1272
		1273	# the original (read-only) location
		1274	sub load_path {
		1275	my ($self) = @_;
		1276
		1277	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1278	}
		1279
		1280	# the temporary/swap location
		1281	sub save_path {
		1282	my ($self) = @_;
		1283
		1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1285	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1286	}
		1287
		1288	# the unique path, undef == no special unique path
		1289	sub uniq_path {
		1290	my ($self) = @_;
		1291
		1292	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1293	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1294	}
		1295
		1296	# and all this just because we cannot iterate over
		1297	# all maps in C++...
		1298	sub change_all_map_light {
		1299	my ($change) = @_;
		1300
		1301	$_->change_map_light ($change)
		1302	for grep $_->outdoor, values %cf::MAP;
		1303	}
		1304
		1305	sub unlink_save {
		1306	my ($self) = @_;
		1307
		1308	utf8::encode (my $save = $self->save_path);
		1309	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1310	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1311	}
		1312
		1313	sub load_header_from($) {
		1314	my ($self, $path) = @_;
		1315
		1316	utf8::encode $path;
		1317	#aio_open $path, O_RDONLY, 0
		1318	# or return;
		1319
		1320	$self->_load_header ($path)
		1321	or return;
		1322
		1323	$self->{load_path} = $path;
		1324
		1325	1
		1326	}
		1327
		1328	sub load_header_orig {
		1329	my ($self) = @_;
		1330
		1331	$self->load_header_from ($self->load_path)
		1332	}
		1333
		1334	sub load_header_temp {
		1335	my ($self) = @_;
		1336
		1337	$self->load_header_from ($self->save_path)
		1338	}
		1339
		1340	sub prepare_temp {
		1341	my ($self) = @_;
		1342
		1343	$self->last_access ((delete $self->{last_access})
		1344	|| $cf::RUNTIME); #d#
		1345	# safety
		1346	$self->{instantiate_time} = $cf::RUNTIME
		1347	if $self->{instantiate_time} > $cf::RUNTIME;
		1348	}
		1349
		1350	sub prepare_orig {
		1351	my ($self) = @_;
		1352
		1353	$self->{load_original} = 1;
		1354	$self->{instantiate_time} = $cf::RUNTIME;
		1355	$self->last_access ($cf::RUNTIME);
		1356	$self->instantiate;
		1357	}
		1358
		1359	sub load_header {
		1360	my ($self) = @_;
		1361
		1362	if ($self->load_header_temp) {
		1363	$self->prepare_temp;
		1364	} else {
		1365	$self->load_header_orig
		1366	or return;
		1367	$self->prepare_orig;
		1368	}
		1369
		1370	1
		1371	}
		1372
		1373	sub find;
		1374	sub find {
		1375	my ($path, $origin) = @_;
		1376
		1377	$path = normalise $path, $origin && $origin->path;
		1378
		1379	cf::lock_wait "map_find:$path";
		1380
		1381	$cf::MAP{$path} || do {
		1382	my $guard = cf::lock_acquire "map_find:$path";
		1383	my $map = new_from_path cf::map $path
		1384	or return;
		1385
		1386	$map->{last_save} = $cf::RUNTIME;
		1387
		1388	$map->load_header
		1389	or return;
		1390
		1391	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1392	# doing this can freeze the server in a sync job, obviously
		1393	#$cf::WAIT_FOR_TICK->wait;
		1394	$map->reset;
		1395	undef $guard;
		1396	return find $path;
		1397	}
		1398
		1399	$cf::MAP{$path} = $map
		1400	}
		1401	}
		1402
		1403	sub pre_load { }
		1404	sub post_load { }
		1405
		1406	sub load {
		1407	my ($self) = @_;
		1408
		1409	local $self->{deny_reset} = 1; # loading can take a long time
		1410
		1411	my $path = $self->{path};
		1412	my $guard = cf::lock_acquire "map_load:$path";
		1413
		1414	return if $self->in_memory != cf::MAP_SWAPPED;
		1415
		1416	$self->in_memory (cf::MAP_LOADING);
		1417
		1418	$self->alloc;
		1419
		1420	$self->pre_load;
		1421
		1422	$self->_load_objects ($self->{load_path}, 1)
		1423	or return;
		1424
		1425	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1426	if delete $self->{load_original};
		1427
		1428	if (my $uniq = $self->uniq_path) {
		1429	utf8::encode $uniq;
		1430	if (aio_open $uniq, O_RDONLY, 0) {
		1431	$self->clear_unique_items;
		1432	$self->_load_objects ($uniq, 0);
		1433	}
		1434	}
		1435
		1436	Coro::cede;
		1437
		1438	# now do the right thing for maps
		1439	$self->link_multipart_objects;
		1440
		1441	unless ($self->{deny_activate}) {
		1442	$self->decay_objects;
		1443	$self->fix_auto_apply;
		1444	$self->update_buttons;
		1445	Coro::cede;
		1446	$self->set_darkness_map;
		1447	$self->difficulty ($self->estimate_difficulty)
		1448	unless $self->difficulty;
		1449	Coro::cede;
		1450	$self->activate;
		1451	}
		1452
		1453	$self->post_load;
		1454
		1455	$self->in_memory (cf::MAP_IN_MEMORY);
		1456	}
		1457
		1458	sub customise_for {
		1459	my ($self, $ob) = @_;
		1460
		1461	return find "~" . $ob->name . "/" . $self->{path}
		1462	if $self->per_player;
		1463
		1464	$self
		1465	}
		1466
		1467	# find and load all maps in the 3x3 area around a map
		1468	sub load_diag {
457	my ($msg) = @_;	1469	my ($map) = @_;
458		1470
459	$msg->("reloading...");	1471	my @diag; # diagonal neighbours
460		1472
461	eval {	1473	for (0 .. 3) {
462	# 1. cancel all watchers	1474	my $neigh = $map->tile_path ($_)
463	$_->cancel for Event::all_watchers;	1475	or next;
		1476	$neigh = find $neigh, $map
		1477	or next;
		1478	$neigh->load;
464		1479
465	# 2. unload all extensions	1480	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
466	for (@exts) {	1481	[$neigh->tile_path (($_ + 1) % 4), $neigh];
467	$msg->("unloading <$_>");	1482	}
468	unload_extension $_;
469	}
470		1483
471	# 3. unload all modules loaded from $LIBDIR	1484	for (@diag) {
472	while (my ($k, $v) = each %INC) {	1485	my $neigh = find @$_
473	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1486	or next;
		1487	$neigh->load;
		1488	}
		1489	}
474		1490
475	$msg->("removing <$k>");	1491	sub find_sync {
476	delete $INC{$k};	1492	my ($path, $origin) = @_;
477		1493
478	$k =~ s/\.pm$//;	1494	cf::sync_job { find $path, $origin }
479	$k =~ s/\//::/g;	1495	}
480		1496
481	if (my $cb = $k->can ("unload_module")) {	1497	sub do_load_sync {
482	$cb->();	1498	my ($map) = @_;
		1499
		1500	cf::sync_job { $map->load };
		1501	}
		1502
		1503	our %MAP_PREFETCH;
		1504	our $MAP_PREFETCHER = undef;
		1505
		1506	sub find_async {
		1507	my ($path, $origin) = @_;
		1508
		1509	$path = normalise $path, $origin && $origin->{path};
		1510
		1511	if (my $map = $cf::MAP{$path}) {
		1512	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1513	}
		1514
		1515	undef $MAP_PREFETCH{$path};
		1516	$MAP_PREFETCHER ||= cf::async {
		1517	while (%MAP_PREFETCH) {
		1518	for my $path (keys %MAP_PREFETCH) {
		1519	my $map = find $path
		1520	or next;
		1521	$map->load;
		1522
		1523	delete $MAP_PREFETCH{$path};
483	}	1524	}
484
485	Symbol::delete_package $k;
486	}
487
488	# 4. get rid of safe::, as good as possible
489	Symbol::delete_package "safe::$_"
490	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
491
492	# 5. remove register_script_function callbacks
493	# TODO
494		1525	}
495	# 6. unload cf.pm "a bit"	1526	undef $MAP_PREFETCHER;
496	delete $INC{"cf.pm"};
497
498	# don't, removes xs symbols, too,
499	# and global variables created in xs
500	#Symbol::delete_package __PACKAGE__;
501
502	# 7. reload cf.pm
503	$msg->("reloading cf.pm");
504	require cf;
505	};	1527	};
506	$msg->($@) if $@;	1528	$MAP_PREFETCHER->prio (6);
507		1529
508	$msg->("reloaded");	1530	()
509	};	1531	}
510		1532
511	sub perl_reload() {	1533	sub save {
512	_perl_reload {	1534	my ($self) = @_;
513	warn $_[0];	1535
514	print "$_[0]\n";	1536	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1537
		1538	$self->{last_save} = $cf::RUNTIME;
		1539
		1540	return unless $self->dirty;
		1541
		1542	my $save = $self->save_path; utf8::encode $save;
		1543	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1544
		1545	$self->{load_path} = $save;
		1546
		1547	return if $self->{deny_save};
		1548
		1549	local $self->{last_access} = $self->last_access;#d#
		1550
		1551	cf::async {
		1552	$_->contr->save for $self->players;
515	};	1553	};
516	}
517		1554
518	register_command "perl-reload", 0, sub {	1555	if ($uniq) {
519	my ($who, $arg) = @_;	1556	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
520		1557	$self->_save_objects ($uniq, cf::IO_UNIQUES);
521	if ($who->flag (FLAG_WIZ)) {
522	_perl_reload {
523	warn $_[0];
524	$who->message ($_[0]);
525	};
526	}
527	};
528
529	#############################################################################
530	# extcmd framework, basically convert ext <msg>
531	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
532
533	attach_to_players
534	on_extcmd => sub {
535	my ($pl, $buf) = @_;
536
537	my $msg = eval { from_json $buf };
538
539	if (ref $msg) {
540	if (my $cb = $extcmd{$msg->{msgtype}}) {
541	if (my %reply = $cb->[0]->($pl, $msg)) {
542	$pl->ext_reply ($msg->{msgid}, %reply);
543	}
544	}
545	} else {
546	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
547	}
548
549	cf::override;
550	},
551	;
552
553	#############################################################################
554	# load/save/clean perl data associated with a map
555
556	*cf::mapsupport::on_clean = sub {
557	my ($map) = @_;
558
559	my $path = $map->tmpname;
560	defined $path or return;
561
562	unlink "$path.cfperl";
563	};
564
565	*cf::mapsupport::on_swapin =
566	*cf::mapsupport::on_load = sub {
567	my ($map) = @_;
568
569	my $path = $map->tmpname;
570	$path = $map->path unless defined $path;
571
572	open my $fh, "<:raw", "$path.cfperl"
573	or return; # no perl data
574
575	my $data = Storable::thaw do { local $/; <$fh> };
576
577	$data->{version} <= 1
578	or return; # too new
579
580	$map->_set_obs ($data->{obs});
581	};
582
583	*cf::mapsupport::on_swapout = sub {
584	my ($map) = @_;
585
586	my $path = $map->tmpname;
587	$path = $map->path unless defined $path;
588
589	my $obs = $map->_get_obs;
590
591	if (defined $obs) {
592	open my $fh, ">:raw", "$path.cfperl"
593	or die "$path.cfperl: $!";
594
595	stat $path;
596
597	print $fh Storable::nfreeze {
598	size => (stat _)[7],
599	time => (stat _)[9],
600	version => 1,
601	obs => $obs,
602	};
603
604	chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g*
605	} else {	1558	} else {
606	unlink "$path.cfperl";	1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
607	}
608	};
609
610	attach_to_maps prio => -10000, package => cf::mapsupport::;
611
612	#############################################################################
613	# load/save perl data associated with player->ob objects
614
615	sub all_objects(@) {
616	@_, map all_objects ($_->inv), @_
617	}
618
619	attach_to_players
620	on_load => sub {
621	my ($pl, $path) = @_;
622
623	for my $o (all_objects $pl->ob) {
624	if (my $value = $o->get_ob_key_value ("_perl_data")) {
625	$o->set_ob_key_value ("_perl_data");
626
627	%$o = %{ Storable::thaw pack "H*", $value };
628	}
629	}
630	},	1560	}
631	on_save => sub {	1561	}
632	my ($pl, $path) = @_;
633		1562
634	$_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)	1563	sub swap_out {
635	for grep %$_, all_objects $pl->ob;	1564	my ($self) = @_;
		1565
		1566	# save first because save cedes
		1567	$self->save;
		1568
		1569	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1570
		1571	return if $self->players;
		1572	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1573	return if $self->{deny_save};
		1574
		1575	$self->clear;
		1576	$self->in_memory (cf::MAP_SWAPPED);
		1577	}
		1578
		1579	sub reset_at {
		1580	my ($self) = @_;
		1581
		1582	# TODO: safety, remove and allow resettable per-player maps
		1583	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1584	return 1e99 if $self->{deny_reset};
		1585
		1586	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1587	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1588
		1589	$time + $to
		1590	}
		1591
		1592	sub should_reset {
		1593	my ($self) = @_;
		1594
		1595	$self->reset_at <= $cf::RUNTIME
		1596	}
		1597
		1598	sub reset {
		1599	my ($self) = @_;
		1600
		1601	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1602
		1603	return if $self->players;
		1604	return if $self->isa ("ext::map_per_player");#d#
		1605
		1606	warn "resetting map ", $self->path;#d#
		1607
		1608	$self->in_memory (cf::MAP_SWAPPED);
		1609
		1610	# need to save uniques path
		1611	unless ($self->{deny_save}) {
		1612	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1613
		1614	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1615	if $uniq;
636	},	1616	}
637	;
638		1617
639	#############################################################################	1618	delete $cf::MAP{$self->path};
640	# core extensions - in perl
641		1619
642	=item cf::player::exists $login	1620	$self->clear;
643		1621
644	Returns true when the given account exists.	1622	$_->clear_links_to ($self) for values %cf::MAP;
645		1623
646	=cut	1624	$self->unlink_save;
647		1625	$self->destroy;
648	sub cf::player::exists($) {
649	cf::player::find $_[0]
650	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
651	}	1626	}
652		1627
		1628	my $nuke_counter = "aaaa";
		1629
		1630	sub nuke {
		1631	my ($self) = @_;
		1632
		1633	delete $cf::MAP{$self->path};
		1634
		1635	$self->unlink_save;
		1636
		1637	bless $self, "cf::map";
		1638	delete $self->{deny_reset};
		1639	$self->{deny_save} = 1;
		1640	$self->reset_timeout (1);
		1641	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1642
		1643	$cf::MAP{$self->path} = $self;
		1644
		1645	$self->reset; # polite request, might not happen
		1646	}
		1647
		1648	=item cf::map::unique_maps
		1649
		1650	Returns an arrayref of paths of all shared maps that have
		1651	instantiated unique items. May block.
		1652
		1653	=cut
		1654
		1655	sub unique_maps() {
		1656	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1657	or return;
		1658
		1659	my @paths;
		1660
		1661	for (@$files) {
		1662	utf8::decode $_;
		1663	next if /\.pst$/;
		1664	next unless /^$PATH_SEP/o;
		1665
		1666	push @paths, cf::map::normalise $_;
		1667	}
		1668
		1669	\@paths
		1670	}
		1671
		1672	package cf;
		1673
		1674	=back
		1675
		1676	=head3 cf::object
		1677
		1678	=cut
		1679
		1680	package cf::object;
		1681
		1682	=over 4
		1683
		1684	=item $ob->inv_recursive
		1685
		1686	Returns the inventory of the object _and_ their inventories, recursively.
		1687
		1688	=cut
		1689
		1690	sub inv_recursive_;
		1691	sub inv_recursive_ {
		1692	map { $_, inv_recursive_ $_->inv } @_
		1693	}
		1694
		1695	sub inv_recursive {
		1696	inv_recursive_ inv $_[0]
		1697	}
		1698
		1699	package cf;
		1700
		1701	=back
		1702
		1703	=head3 cf::object::player
		1704
		1705	=over 4
		1706
653	=item $player->reply ($npc, $msg[, $flags])	1707	=item $player_object->reply ($npc, $msg[, $flags])
654		1708
655	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1709	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
656	can be C<undef>. Does the right thing when the player is currently in a	1710	can be C<undef>. Does the right thing when the player is currently in a
657	dialogue with the given NPC character.	1711	dialogue with the given NPC character.
658		1712
659	=cut	1713	=cut
660		1714
661	# rough implementation of a future "reply" method that works	1715	# rough implementation of a future "reply" method that works
662	# with dialog boxes.	1716	# with dialog boxes.
		1717	#TODO: the first argument must go, split into a $npc->reply_to ( method
663	sub cf::object::player::reply($$$;$) {	1718	sub cf::object::player::reply($$$;$) {
664	my ($self, $npc, $msg, $flags) = @_;	1719	my ($self, $npc, $msg, $flags) = @_;
665		1720
666	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1721	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
667		1722
…		…
671	$msg = $npc->name . " says: $msg" if $npc;	1726	$msg = $npc->name . " says: $msg" if $npc;
672	$self->message ($msg, $flags);	1727	$self->message ($msg, $flags);
673	}	1728	}
674	}	1729	}
675		1730
676	=item $player->ext_reply ($msgid, $msgtype, %msg)	1731	=item $player_object->may ("access")
677		1732
678	Sends an ext reply to the player.	1733	Returns wether the given player is authorized to access resource "access"
		1734	(e.g. "command_wizcast").
679		1735
680	=cut	1736	=cut
681		1737
682	sub cf::player::ext_reply($$$%) {	1738	sub cf::object::player::may {
		1739	my ($self, $access) = @_;
		1740
		1741	$self->flag (cf::FLAG_WIZ) ||
		1742	(ref $cf::CFG{"may_$access"}
		1743	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1744	: $cf::CFG{"may_$access"})
		1745	}
		1746
		1747	=item $player_object->enter_link
		1748
		1749	Freezes the player and moves him/her to a special map (C<{link}>).
		1750
		1751	The player should be reasonably safe there for short amounts of time. You
		1752	I<MUST> call C<leave_link> as soon as possible, though.
		1753
		1754	Will never block.
		1755
		1756	=item $player_object->leave_link ($map, $x, $y)
		1757
		1758	Moves the player out of the special C<{link}> map onto the specified
		1759	map. If the map is not valid (or omitted), the player will be moved back
		1760	to the location he/she was before the call to C<enter_link>, or, if that
		1761	fails, to the emergency map position.
		1762
		1763	Might block.
		1764
		1765	=cut
		1766
		1767	sub link_map {
		1768	unless ($LINK_MAP) {
		1769	$LINK_MAP = cf::map::find "{link}"
		1770	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1771	$LINK_MAP->load;
		1772	}
		1773
		1774	$LINK_MAP
		1775	}
		1776
		1777	sub cf::object::player::enter_link {
		1778	my ($self) = @_;
		1779
		1780	$self->deactivate_recursive;
		1781
		1782	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1783
		1784	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1785	if $self->map;
		1786
		1787	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1788	}
		1789
		1790	sub cf::object::player::leave_link {
		1791	my ($self, $map, $x, $y) = @_;
		1792
		1793	my $link_pos = delete $self->{_link_pos};
		1794
		1795	unless ($map) {
		1796	# restore original map position
		1797	($map, $x, $y) = @{ $link_pos || [] };
		1798	$map = cf::map::find $map;
		1799
		1800	unless ($map) {
		1801	($map, $x, $y) = @$EMERGENCY_POSITION;
		1802	$map = cf::map::find $map
		1803	or die "FATAL: cannot load emergency map\n";
		1804	}
		1805	}
		1806
		1807	($x, $y) = (-1, -1)
		1808	unless (defined $x) && (defined $y);
		1809
		1810	# use -1 or undef as default coordinates, not 0, 0
		1811	($x, $y) = ($map->enter_x, $map->enter_y)
		1812	if $x <=0 && $y <= 0;
		1813
		1814	$map->load;
		1815	$map->load_diag;
		1816
		1817	return unless $self->contr->active;
		1818	$self->activate_recursive;
		1819
		1820	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1821	$self->enter_map ($map, $x, $y);
		1822	}
		1823
		1824	cf::player->attach (
		1825	on_logout => sub {
		1826	my ($pl) = @_;
		1827
		1828	# abort map switching before logout
		1829	if ($pl->ob->{_link_pos}) {
		1830	cf::sync_job {
		1831	$pl->ob->leave_link
		1832	};
		1833	}
		1834	},
		1835	on_login => sub {
		1836	my ($pl) = @_;
		1837
		1838	# try to abort aborted map switching on player login :)
		1839	# should happen only on crashes
		1840	if ($pl->ob->{_link_pos}) {
		1841	$pl->ob->enter_link;
		1842	(async {
		1843	$pl->ob->reply (undef,
		1844	"There was an internal problem at your last logout, "
		1845	. "the server will try to bring you to your intended destination in a second.",
		1846	cf::NDI_RED);
		1847	# we need this sleep as the login has a concurrent enter_exit running
		1848	# and this sleep increases chances of the player not ending up in scorn
		1849	Coro::Timer::sleep 1;
		1850	$pl->ob->leave_link;
		1851	})->prio (2);
		1852	}
		1853	},
		1854	);
		1855
		1856	=item $player_object->goto ($path, $x, $y)
		1857
		1858	=cut
		1859
		1860	sub cf::object::player::goto {
		1861	my ($self, $path, $x, $y) = @_;
		1862
		1863	$self->enter_link;
		1864
		1865	(async {
		1866	my $map = eval {
		1867	my $map = cf::map::find $path;
		1868	$map = $map->customise_for ($self) if $map;
		1869	$map
		1870	} or
		1871	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1872
		1873	$self->leave_link ($map, $x, $y);
		1874	})->prio (1);
		1875	}
		1876
		1877	=item $player_object->enter_exit ($exit_object)
		1878
		1879	=cut
		1880
		1881	sub parse_random_map_params {
		1882	my ($spec) = @_;
		1883
		1884	my $rmp = { # defaults
		1885	xsize => (cf::rndm 15, 40),
		1886	ysize => (cf::rndm 15, 40),
		1887	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1888	#layout => string,
		1889	};
		1890
		1891	for (split /\n/, $spec) {
		1892	my ($k, $v) = split /\s+/, $_, 2;
		1893
		1894	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1895	}
		1896
		1897	$rmp
		1898	}
		1899
		1900	sub prepare_random_map {
		1901	my ($exit) = @_;
		1902
		1903	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1904
		1905	# all this does is basically replace the /! path by
		1906	# a new random map path (?random/...) with a seed
		1907	# that depends on the exit object
		1908
		1909	my $rmp = parse_random_map_params $exit->msg;
		1910
		1911	if ($exit->map) {
		1912	$rmp->{region} = $exit->region->name;
		1913	$rmp->{origin_map} = $exit->map->path;
		1914	$rmp->{origin_x} = $exit->x;
		1915	$rmp->{origin_y} = $exit->y;
		1916	}
		1917
		1918	$rmp->{random_seed} ||= $exit->random_seed;
		1919
		1920	my $data = cf::to_json $rmp;
		1921	my $md5 = Digest::MD5::md5_hex $data;
		1922	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1923
		1924	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1925	aio_write $fh, 0, (length $data), $data, 0;
		1926	undef $fh;
		1927	aio_rename "$meta~", $meta;
		1928
		1929	$exit->slaying ("?random/$md5");
		1930	$exit->msg (undef);
		1931	}
		1932	}
		1933
		1934	sub cf::object::player::enter_exit {
683	my ($self, $id, %msg) = @_;	1935	my ($self, $exit) = @_;
684		1936
685	$msg{msgid} = $id;	1937	return unless $self->type == cf::PLAYER;
686		1938
687	$self->send ("ext " . to_json \%msg);	1939	if ($exit->slaying eq "/!") {
688	}	1940	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1941	cf::sync_job { prepare_random_map $exit };
		1942	}
689		1943
690	#############################################################################	1944	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
691	# map scripting support	1945	my $hp = $exit->stats->hp;
		1946	my $sp = $exit->stats->sp;
		1947
		1948	$self->enter_link;
		1949
		1950	(async {
		1951	$self->deactivate_recursive; # just to be sure
		1952	unless (eval {
		1953	$self->goto ($slaying, $hp, $sp);
		1954
		1955	1;
		1956	}) {
		1957	$self->message ("Something went wrong deep within the crossfire server. "
		1958	. "I'll try to bring you back to the map you were before. "
		1959	. "Please report this to the dungeon master!",
		1960	cf::NDI_UNIQUE | cf::NDI_RED);
		1961
		1962	warn "ERROR in enter_exit: $@";
		1963	$self->leave_link;
		1964	}
		1965	})->prio (1);
		1966	}
		1967
		1968	=head3 cf::client
		1969
		1970	=over 4
		1971
		1972	=item $client->send_drawinfo ($text, $flags)
		1973
		1974	Sends a drawinfo packet to the client. Circumvents output buffering so
		1975	should not be used under normal circumstances.
		1976
		1977	=cut
		1978
		1979	sub cf::client::send_drawinfo {
		1980	my ($self, $text, $flags) = @_;
		1981
		1982	utf8::encode $text;
		1983	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1984	}
		1985
		1986
		1987	=item $success = $client->query ($flags, "text", \&cb)
		1988
		1989	Queues a query to the client, calling the given callback with
		1990	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1991	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1992
		1993	Queries can fail, so check the return code. Or don't, as queries will become
		1994	reliable at some point in the future.
		1995
		1996	=cut
		1997
		1998	sub cf::client::query {
		1999	my ($self, $flags, $text, $cb) = @_;
		2000
		2001	return unless $self->state == ST_PLAYING
		2002	|| $self->state == ST_SETUP
		2003	|| $self->state == ST_CUSTOM;
		2004
		2005	$self->state (ST_CUSTOM);
		2006
		2007	utf8::encode $text;
		2008	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		2009
		2010	$self->send_packet ($self->{query_queue}[0][0])
		2011	if @{ $self->{query_queue} } == 1;
		2012	}
		2013
		2014	cf::client->attach (
		2015	on_reply => sub {
		2016	my ($ns, $msg) = @_;
		2017
		2018	# this weird shuffling is so that direct followup queries
		2019	# get handled first
		2020	my $queue = delete $ns->{query_queue}
		2021	or return; # be conservative, not sure how that can happen, but we saw a crash here
		2022
		2023	(shift @$queue)->[1]->($msg);
		2024	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
		2025
		2026	push @{ $ns->{query_queue} }, @$queue;
		2027
		2028	if (@{ $ns->{query_queue} } == @$queue) {
		2029	if (@$queue) {
		2030	$ns->send_packet ($ns->{query_queue}[0][0]);
		2031	} else {
		2032	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		2033	}
		2034	}
		2035	},
		2036	);
		2037
		2038	=item $client->async (\&cb)
		2039
		2040	Create a new coroutine, running the specified callback. The coroutine will
		2041	be automatically cancelled when the client gets destroyed (e.g. on logout,
		2042	or loss of connection).
		2043
		2044	=cut
		2045
		2046	sub cf::client::async {
		2047	my ($self, $cb) = @_;
		2048
		2049	my $coro = &Coro::async ($cb);
		2050
		2051	$coro->on_destroy (sub {
		2052	delete $self->{_coro}{$coro+0};
		2053	});
		2054
		2055	$self->{_coro}{$coro+0} = $coro;
		2056
		2057	$coro
		2058	}
		2059
		2060	cf::client->attach (
		2061	on_destroy => sub {
		2062	my ($ns) = @_;
		2063
		2064	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		2065	},
		2066	);
		2067
		2068	=back
		2069
		2070
		2071	=head2 SAFE SCRIPTING
		2072
		2073	Functions that provide a safe environment to compile and execute
		2074	snippets of perl code without them endangering the safety of the server
		2075	itself. Looping constructs, I/O operators and other built-in functionality
		2076	is not available in the safe scripting environment, and the number of
		2077	functions and methods that can be called is greatly reduced.
		2078
		2079	=cut
692		2080
693	our $safe = new Safe "safe";	2081	our $safe = new Safe "safe";
694	our $safe_hole = new Safe::Hole;	2082	our $safe_hole = new Safe::Hole;
695		2083
696	$SIG{FPE} = 'IGNORE';	2084	$SIG{FPE} = 'IGNORE';
697		2085
698	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2086	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
699		2087
700	# here we export the classes and methods available to script code	2088	# here we export the classes and methods available to script code
701		2089
		2090	=pod
		2091
		2092	The following fucntions and emthods are available within a safe environment:
		2093
		2094	cf::object contr pay_amount pay_player map
		2095	cf::object::player player
		2096	cf::player peaceful
		2097	cf::map trigger
		2098
		2099	=cut
		2100
702	for (	2101	for (
703	["cf::object" => qw(contr pay_amount pay_player)],	2102	["cf::object" => qw(contr pay_amount pay_player map)],
704	["cf::object::player" => qw(player)],	2103	["cf::object::player" => qw(player)],
705	["cf::player" => qw(peaceful)],	2104	["cf::player" => qw(peaceful)],
		2105	["cf::map" => qw(trigger)],
706	) {	2106	) {
707	no strict 'refs';	2107	no strict 'refs';
708	my ($pkg, @funs) = @$_;	2108	my ($pkg, @funs) = @$_;
709	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	2109	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
710	for @funs;	2110	for @funs;
711	}	2111	}
		2112
		2113	=over 4
		2114
		2115	=item @retval = safe_eval $code, [var => value, ...]
		2116
		2117	Compiled and executes the given perl code snippet. additional var/value
		2118	pairs result in temporary local (my) scalar variables of the given name
		2119	that are available in the code snippet. Example:
		2120
		2121	my $five = safe_eval '$first + $second', first => 1, second => 4;
		2122
		2123	=cut
712		2124
713	sub safe_eval($;@) {	2125	sub safe_eval($;@) {
714	my ($code, %vars) = @_;	2126	my ($code, %vars) = @_;
715		2127
716	my $qcode = $code;	2128	my $qcode = $code;
…		…
739	}	2151	}
740		2152
741	wantarray ? @res : $res[0]	2153	wantarray ? @res : $res[0]
742	}	2154	}
743		2155
		2156	=item cf::register_script_function $function => $cb
		2157
		2158	Register a function that can be called from within map/npc scripts. The
		2159	function should be reasonably secure and should be put into a package name
		2160	like the extension.
		2161
		2162	Example: register a function that gets called whenever a map script calls
		2163	C<rent::overview>, as used by the C<rent> extension.
		2164
		2165	cf::register_script_function "rent::overview" => sub {
		2166	...
		2167	};
		2168
		2169	=cut
		2170
744	sub register_script_function {	2171	sub register_script_function {
745	my ($fun, $cb) = @_;	2172	my ($fun, $cb) = @_;
746		2173
747	no strict 'refs';	2174	no strict 'refs';
748	*{"safe::$fun"} = $safe_hole->wrap ($cb);	2175	*{"safe::$fun"} = $safe_hole->wrap ($cb);
749	}	2176	}
750		2177
		2178	=back
		2179
		2180	=cut
		2181
751	#############################################################################	2182	#############################################################################
752	# the server's main()	2183
		2184	=head2 EXTENSION DATABASE SUPPORT
		2185
		2186	Crossfire maintains a very simple database for extension use. It can
		2187	currently store anything that can be serialised using Storable, which
		2188	excludes objects.
		2189
		2190	The parameter C<$family> should best start with the name of the extension
		2191	using it, it should be unique.
		2192
		2193	=over 4
		2194
		2195	=item $value = cf::db_get $family => $key
		2196
		2197	Returns a single value from the database.
		2198
		2199	=item cf::db_put $family => $key => $value
		2200
		2201	Stores the given C<$value> in the family.
		2202
		2203	=cut
		2204
		2205	our $DB;
		2206
		2207	sub db_init {
		2208	unless ($DB) {
		2209	$DB = BDB::db_create $DB_ENV;
		2210
		2211	cf::sync_job {
		2212	eval {
		2213	$DB->set_flags (BDB::CHKSUM);
		2214
		2215	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2216	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2217	cf::cleanup "db_open(db): $!" if $!;
		2218	};
		2219	cf::cleanup "db_open(db): $@" if $@;
		2220	};
		2221
		2222	my $path = cf::localdir . "/database.pst";
		2223	if (stat $path) {
		2224	cf::sync_job {
		2225	my $pst = Storable::retrieve $path;
		2226
		2227	cf::db_put (board => data => $pst->{board});
		2228	cf::db_put (guildrules => data => $pst->{guildrules});
		2229	cf::db_put (rent => balance => $pst->{rent}{balance});
		2230	BDB::db_env_txn_checkpoint $DB_ENV;
		2231
		2232	unlink $path;
		2233	};
		2234	}
		2235	}
		2236	}
		2237
		2238	sub db_get($$) {
		2239	my $key = "$_[0]/$_[1]";
		2240
		2241	cf::sync_job {
		2242	BDB::db_get $DB, undef, $key, my $data;
		2243
		2244	$! ? ()
		2245	: Compress::LZF::sthaw $data
		2246	}
		2247	}
		2248
		2249	sub db_put($$$) {
		2250	BDB::dbreq_pri 4;
		2251	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
		2252	}
		2253
		2254	#############################################################################
		2255	# the server's init and main functions
		2256
		2257	sub init_resources {
		2258	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2259	or die "unable to load regions file\n";#d#
		2260	}
		2261
		2262	sub cfg_load {
		2263	open my $fh, "<:utf8", cf::confdir . "/config"
		2264	or return;
		2265
		2266	local $/;
		2267	*CFG = YAML::Syck::Load <$fh>;
		2268
		2269	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2270
		2271	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2272	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2273
		2274	if (exists $CFG{mlockall}) {
		2275	eval {
		2276	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2277	and die "WARNING: m(un)lockall failed: $!\n";
		2278	};
		2279	warn $@ if $@;
		2280	}
		2281	}
		2282
		2283	sub init {
		2284	init_resources;
		2285	}
753		2286
754	sub main {	2287	sub main {
		2288	# we must not ever block the main coroutine
		2289	local $Coro::idle = sub {
		2290	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2291	(async {
		2292	Event::one_event;
		2293	})->prio (Coro::PRIO_MAX);
		2294	};
		2295
		2296	cfg_load;
		2297	db_init;
		2298	load_extensions;
		2299
		2300	$TICK_WATCHER->start;
755	Event::loop;	2301	Event::loop;
756	}	2302	}
757		2303
758	#############################################################################	2304	#############################################################################
759	# initialisation	2305	# initialisation and cleanup
760		2306
761	register "<global>", __PACKAGE__;	2307	# install some emergency cleanup handlers
		2308	BEGIN {
		2309	for my $signal (qw(INT HUP TERM)) {
		2310	Event->signal (
		2311	reentrant => 0,
		2312	data => WF_AUTOCANCEL,
		2313	signal => $signal,
		2314	prio => 0,
		2315	cb => sub {
		2316	cf::cleanup "SIG$signal";
		2317	},
		2318	);
		2319	}
		2320	}
		2321
		2322	sub emergency_save() {
		2323	my $freeze_guard = cf::freeze_mainloop;
		2324
		2325	warn "enter emergency perl save\n";
		2326
		2327	cf::sync_job {
		2328	# use a peculiar iteration method to avoid tripping on perl
		2329	# refcount bugs in for. also avoids problems with players
		2330	# and maps saved/destroyed asynchronously.
		2331	warn "begin emergency player save\n";
		2332	for my $login (keys %cf::PLAYER) {
		2333	my $pl = $cf::PLAYER{$login} or next;
		2334	$pl->valid or next;
		2335	$pl->save;
		2336	}
		2337	warn "end emergency player save\n";
		2338
		2339	warn "begin emergency map save\n";
		2340	for my $path (keys %cf::MAP) {
		2341	my $map = $cf::MAP{$path} or next;
		2342	$map->valid or next;
		2343	$map->save;
		2344	}
		2345	warn "end emergency map save\n";
		2346
		2347	warn "begin emergency database checkpoint\n";
		2348	BDB::db_env_txn_checkpoint $DB_ENV;
		2349	warn "end emergency database checkpoint\n";
		2350	};
		2351
		2352	warn "leave emergency perl save\n";
		2353	}
		2354
		2355	sub post_cleanup {
		2356	my ($make_core) = @_;
		2357
		2358	warn Carp::longmess "post_cleanup backtrace"
		2359	if $make_core;
		2360	}
		2361
		2362	sub reload() {
		2363	# can/must only be called in main
		2364	if ($Coro::current != $Coro::main) {
		2365	warn "can only reload from main coroutine";
		2366	return;
		2367	}
		2368
		2369	warn "reloading...";
		2370
		2371	warn "entering sync_job";
		2372
		2373	cf::sync_job {
		2374	cf::write_runtime; # external watchdog should not bark
		2375	cf::emergency_save;
		2376	cf::write_runtime; # external watchdog should not bark
		2377
		2378	warn "syncing database to disk";
		2379	BDB::db_env_txn_checkpoint $DB_ENV;
		2380
		2381	# if anything goes wrong in here, we should simply crash as we already saved
		2382
		2383	warn "cancelling all WF_AUTOCANCEL watchers";
		2384	for (Event::all_watchers) {
		2385	$_->cancel if $_->data & WF_AUTOCANCEL;
		2386	}
		2387
		2388	warn "flushing outstanding aio requests";
		2389	for (;;) {
		2390	BDB::flush;
		2391	IO::AIO::flush;
		2392	Coro::cede;
		2393	last unless IO::AIO::nreqs || BDB::nreqs;
		2394	warn "iterate...";
		2395	}
		2396
		2397	warn "cancelling all extension coros";
		2398	$_->cancel for values %EXT_CORO;
		2399	%EXT_CORO = ();
		2400
		2401	warn "removing commands";
		2402	%COMMAND = ();
		2403
		2404	warn "removing ext commands";
		2405	%EXTCMD = ();
		2406
		2407	warn "unloading/nuking all extensions";
		2408	for my $pkg (@EXTS) {
		2409	warn "... unloading $pkg";
		2410
		2411	if (my $cb = $pkg->can ("unload")) {
		2412	eval {
		2413	$cb->($pkg);
		2414	1
		2415	} or warn "$pkg unloaded, but with errors: $@";
		2416	}
		2417
		2418	warn "... nuking $pkg";
		2419	Symbol::delete_package $pkg;
		2420	}
		2421
		2422	warn "unloading all perl modules loaded from $LIBDIR";
		2423	while (my ($k, $v) = each %INC) {
		2424	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		2425
		2426	warn "... unloading $k";
		2427	delete $INC{$k};
		2428
		2429	$k =~ s/\.pm$//;
		2430	$k =~ s/\//::/g;
		2431
		2432	if (my $cb = $k->can ("unload_module")) {
		2433	$cb->();
		2434	}
		2435
		2436	Symbol::delete_package $k;
		2437	}
		2438
		2439	warn "getting rid of safe::, as good as possible";
		2440	Symbol::delete_package "safe::$_"
		2441	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		2442
		2443	warn "unloading cf.pm \"a bit\"";
		2444	delete $INC{"cf.pm"};
		2445
		2446	# don't, removes xs symbols, too,
		2447	# and global variables created in xs
		2448	#Symbol::delete_package __PACKAGE__;
		2449
		2450	warn "unload completed, starting to reload now";
		2451
		2452	warn "reloading cf.pm";
		2453	require cf;
		2454	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
		2455
		2456	warn "loading config and database again";
		2457	cf::cfg_load;
		2458
		2459	warn "loading extensions";
		2460	cf::load_extensions;
		2461
		2462	warn "reattaching attachments to objects/players";
		2463	_global_reattach;
		2464	warn "reattaching attachments to maps";
		2465	reattach $_ for values %MAP;
		2466
		2467	warn "loading reloadable resources";
		2468	init_resources;
		2469
		2470	warn "leaving sync_job";
		2471
		2472	1
		2473	} or do {
		2474	warn $@;
		2475	warn "error while reloading, exiting.";
		2476	exit 1;
		2477	};
		2478
		2479	warn "reloaded";
		2480	};
		2481
		2482	our $RELOAD_WATCHER; # used only during reload
		2483
		2484	register_command "reload" => sub {
		2485	my ($who, $arg) = @_;
		2486
		2487	if ($who->flag (FLAG_WIZ)) {
		2488	$who->message ("reloading server.");
		2489
		2490	# doing reload synchronously and two reloads happen back-to-back,
		2491	# coro crashes during coro_state_free->destroy here.
		2492
		2493	$RELOAD_WATCHER ||= Event->timer (
		2494	reentrant => 0,
		2495	after => 0,
		2496	data => WF_AUTOCANCEL,
		2497	cb => sub {
		2498	reload;
		2499	undef $RELOAD_WATCHER;
		2500	},
		2501	);
		2502	}
		2503	};
762		2504
763	unshift @INC, $LIBDIR;	2505	unshift @INC, $LIBDIR;
764		2506
765	load_extensions;	2507	my $bug_warning = 0;
766		2508
767	$TICK_WATCHER = Event->timer (	2509	$TICK_WATCHER = Event->timer (
		2510	reentrant => 0,
		2511	parked => 1,
768	prio => 1,	2512	prio => 0,
769	at => $NEXT_TICK || 1,	2513	at => $NEXT_TICK || $TICK,
		2514	data => WF_AUTOCANCEL,
770	cb => sub {	2515	cb => sub {
		2516	if ($Coro::current != $Coro::main) {
		2517	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2518	unless ++$bug_warning > 10;
		2519	return;
		2520	}
		2521
		2522	$NOW = Event::time;
		2523
771	cf::server_tick; # one server iteration	2524	cf::server_tick; # one server iteration
772		2525	$RUNTIME += $TICK;
773	my $NOW = Event::time;
774	$NEXT_TICK += $TICK;	2526	$NEXT_TICK += $TICK;
775		2527
		2528	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2529	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2530	Coro::async_pool {
		2531	write_runtime
		2532	or warn "ERROR: unable to write runtime file: $!";
		2533	};
		2534	}
		2535
		2536	$WAIT_FOR_TICK->broadcast;
		2537	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2538
		2539	# my $AFTER = Event::time;
		2540	# warn $AFTER - $NOW;#d#
		2541
776	# if we are delayed by four ticks, skip them all	2542	# if we are delayed by four ticks or more, skip them all
777	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2543	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
778		2544
779	$TICK_WATCHER->at ($NEXT_TICK);	2545	$TICK_WATCHER->at ($NEXT_TICK);
780	$TICK_WATCHER->start;	2546	$TICK_WATCHER->start;
781	},	2547	},
782	);	2548	);
783		2549
		2550	{
		2551	BDB::max_poll_time $TICK * 0.1;
		2552	$BDB_POLL_WATCHER = Event->io (
		2553	reentrant => 0,
		2554	fd => BDB::poll_fileno,
		2555	poll => 'r',
		2556	prio => 0,
		2557	data => WF_AUTOCANCEL,
		2558	cb => \&BDB::poll_cb,
		2559	);
		2560	BDB::min_parallel 8;
		2561
		2562	BDB::set_sync_prepare {
		2563	my $status;
		2564	my $current = $Coro::current;
		2565	(
		2566	sub {
		2567	$status = $!;
		2568	$current->ready; undef $current;
		2569	},
		2570	sub {
		2571	Coro::schedule while defined $current;
		2572	$! = $status;
		2573	},
		2574	)
		2575	};
		2576
		2577	unless ($DB_ENV) {
		2578	$DB_ENV = BDB::db_env_create;
		2579
		2580	cf::sync_job {
		2581	eval {
		2582	BDB::db_env_open
		2583	$DB_ENV,
		2584	$BDB_ENV_DIR,
		2585	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2586	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2587	0666;
		2588
		2589	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2590
		2591	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2592	$DB_ENV->set_lk_detect;
		2593	};
		2594
		2595	cf::cleanup "db_env_open(db): $@" if $@;
		2596	};
		2597	}
		2598	}
		2599
		2600	{
		2601	IO::AIO::min_parallel 8;
		2602
		2603	undef $Coro::AIO::WATCHER;
		2604	IO::AIO::max_poll_time $TICK * 0.1;
		2605	$AIO_POLL_WATCHER = Event->io (
		2606	reentrant => 0,
		2607	data => WF_AUTOCANCEL,
		2608	fd => IO::AIO::poll_fileno,
		2609	poll => 'r',
		2610	prio => 6,
		2611	cb => \&IO::AIO::poll_cb,
		2612	);
		2613	}
		2614
		2615	END { cf::emergency_save }
		2616
784	1	2617	1
785		2618

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