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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.93 by root, Thu Dec 21 22:41:35 2006 UTC vs.
Revision 1.243 by root, Mon Apr 16 13:02:29 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;
		9	use Event;
6	use Opcode;	10	use Opcode;
7	use Safe;	11	use Safe;
8	use Safe::Hole;	12	use Safe::Hole;
9		13
10	use IO::AIO ();	14	use Coro 3.52 ();
		15	use Coro::State;
		16	use Coro::Event;
		17	use Coro::Timer;
		18	use Coro::Signal;
		19	use Coro::Semaphore;
		20	use Coro::AIO;
		21	use Coro::Storable;
		22
		23	use BDB ();
		24	use Data::Dumper;
		25	use Digest::MD5;
		26	use Fcntl;
11	use YAML::Syck ();	27	use YAML::Syck ();
		28	use IO::AIO 2.32 ();
12	use Time::HiRes;	29	use Time::HiRes;
13	use Event;	30	use Compress::LZF;
		31
		32	# configure various modules to our taste
		33	#
		34	$Storable::canonical = 1; # reduce rsync transfers
		35	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		36	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		37
14	$Event::Eval = 1; # no idea why this is required, but it is	38	$Event::Eval = 1; # no idea why this is required, but it is
15		39
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	40	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	41	$YAML::Syck::ImplicitUnicode = 1;
18		42
19	use strict;	43	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
20		44
21	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	45	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		46
23	our %COMMAND = ();	47	our %COMMAND = ();
24	our %COMMAND_TIME = ();	48	our %COMMAND_TIME = ();
		49
		50	our @EXTS = (); # list of extension package names
25	our %EXTCMD = ();	51	our %EXTCMD = ();
		52	our %EXT_CORO = (); # coroutines bound to extensions
		53	our %EXT_MAP = (); # pluggable maps
26		54
27	_init_vars;	55	our $RELOAD; # number of reloads so far
28
29	our @EVENT;	56	our @EVENT;
30	our $LIBDIR = datadir . "/ext";	57	our $LIBDIR = datadir . "/ext";
31		58
32	our $TICK = MAX_TIME * 1e-6;	59	our $TICK = MAX_TIME * 1e-6;
33	our $TICK_WATCHER;	60	our $TICK_WATCHER;
		61	our $AIO_POLL_WATCHER;
		62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
34	our $NEXT_TICK;	63	our $NEXT_TICK;
		64	our $NOW;
		65	our $USE_FSYNC = 1; # use fsync to write maps - default off
		66
		67	our $BDB_POLL_WATCHER;
		68	our $DB_ENV;
35		69
36	our %CFG;	70	our %CFG;
37		71
38	our $UPTIME; $UPTIME ||= time;	72	our $UPTIME; $UPTIME ||= time;
		73	our $RUNTIME;
		74
		75	our %PLAYER; # all users
		76	our %MAP; # all maps
		77	our $LINK_MAP; # the special {link} map, which is always available
		78	our $RANDOM_MAPS = cf::localdir . "/random";
		79	our $BDB_ENV_DIR = cf::localdir . "/db";
		80
		81	# used to convert map paths into valid unix filenames by replacing / by ∕
		82	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		83
		84	binmode STDOUT;
		85	binmode STDERR;
		86
		87	# read virtual server time, if available
		88	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		89	open my $fh, "<", cf::localdir . "/runtime"
		90	or die "unable to read runtime file: $!";
		91	$RUNTIME = <$fh> + 0.;
		92	}
		93
		94	mkdir cf::localdir;
		95	mkdir cf::localdir . "/" . cf::playerdir;
		96	mkdir cf::localdir . "/" . cf::tmpdir;
		97	mkdir cf::localdir . "/" . cf::uniquedir;
		98	mkdir $RANDOM_MAPS;
		99	mkdir $BDB_ENV_DIR;
		100
		101	our $EMERGENCY_POSITION;
		102
		103	sub cf::map::normalise;
39		104
40	#############################################################################	105	#############################################################################
41		106
42	=head2 GLOBAL VARIABLES	107	=head2 GLOBAL VARIABLES
43		108
44	=over 4	109	=over 4
45		110
46	=item $cf::UPTIME	111	=item $cf::UPTIME
47		112
48	The timestamp of the server start (so not actually an uptime).	113	The timestamp of the server start (so not actually an uptime).
		114
		115	=item $cf::RUNTIME
		116
		117	The time this server has run, starts at 0 and is increased by $cf::TICK on
		118	every server tick.
49		119
50	=item $cf::LIBDIR	120	=item $cf::LIBDIR
51		121
52	The perl library directory, where extensions and cf-specific modules can	122	The perl library directory, where extensions and cf-specific modules can
53	be found. It will be added to C<@INC> automatically.	123	be found. It will be added to C<@INC> automatically.
54		124
		125	=item $cf::NOW
		126
		127	The time of the last (current) server tick.
		128
55	=item $cf::TICK	129	=item $cf::TICK
56		130
57	The interval between server ticks, in seconds.	131	The interval between server ticks, in seconds.
58		132
59	=item %cf::CFG	133	=item %cf::CFG
60		134
61	Configuration for the server, loaded from C</etc/crossfire/config>, or	135	Configuration for the server, loaded from C</etc/crossfire/config>, or
62	from wherever your confdir points to.	136	from wherever your confdir points to.
		137
		138	=item cf::wait_for_tick, cf::wait_for_tick_begin
		139
		140	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		141	returns directly I<after> the tick processing (and consequently, can only wake one process
		142	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
63		143
64	=back	144	=back
65		145
66	=cut	146	=cut
67		147
68	BEGIN {	148	BEGIN {
69	*CORE::GLOBAL::warn = sub {	149	*CORE::GLOBAL::warn = sub {
70	my $msg = join "", @_;	150	my $msg = join "", @_;
		151	utf8::encode $msg;
		152
71	$msg .= "\n"	153	$msg .= "\n"
72	unless $msg =~ /\n$/;	154	unless $msg =~ /\n$/;
73		155
74	print STDERR "cfperl: $msg";
75	LOG llevError, "cfperl: $msg";	156	LOG llevError, $msg;
76	};	157	};
77	}	158	}
78		159
79	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
80	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
84	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	165	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
85		166
86	# we bless all objects into (empty) derived classes to force a method lookup	167	# we bless all objects into (empty) derived classes to force a method lookup
87	# within the Safe compartment.	168	# within the Safe compartment.
88	for my $pkg (qw(	169	for my $pkg (qw(
89	cf::global	170	cf::global cf::attachable
90	cf::object cf::object::player	171	cf::object cf::object::player
91	cf::client cf::player	172	cf::client cf::player
92	cf::arch cf::living	173	cf::arch cf::living
93	cf::map cf::party cf::region	174	cf::map cf::party cf::region
94	)) {	175	)) {
…		…
98		179
99	$Event::DIED = sub {	180	$Event::DIED = sub {
100	warn "error in event callback: @_";	181	warn "error in event callback: @_";
101	};	182	};
102		183
103	my %ext_pkg;
104	my @exts;
105	my @hook;
106
107	=head2 UTILITY FUNCTIONS	184	=head2 UTILITY FUNCTIONS
108		185
109	=over 4	186	=over 4
110		187
111	=cut	188	=item dumpval $ref
112		189
		190	=cut
		191
		192	sub dumpval {
		193	eval {
		194	local $SIG{__DIE__};
		195	my $d;
		196	if (1) {
		197	$d = new Data::Dumper([$_[0]], ["*var"]);
		198	$d->Terse(1);
		199	$d->Indent(2);
		200	$d->Quotekeys(0);
		201	$d->Useqq(1);
		202	#$d->Bless(...);
		203	$d->Seen($_[1]) if @_ > 1;
		204	$d = $d->Dump();
		205	}
		206	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		207	$d
		208	} || "[unable to dump $_[0]: '$@']";
		209	}
		210
113	use JSON::Syck (); # TODO# replace by JSON::PC once working	211	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
114		212
115	=item $ref = cf::from_json $json	213	=item $ref = cf::from_json $json
116		214
117	Converts a JSON string into the corresponding perl data structure.	215	Converts a JSON string into the corresponding perl data structure.
118		216
119	=cut
120
121	sub from_json($) {
122	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
123	JSON::Syck::Load $_[0]
124	}
125
126	=item $json = cf::to_json $ref	217	=item $json = cf::to_json $ref
127		218
128	Converts a perl data structure into its JSON representation.	219	Converts a perl data structure into its JSON representation.
129		220
130	=cut	221	=item cf::lock_wait $string
131		222
132	sub to_json($) {	223	Wait until the given lock is available. See cf::lock_acquire.
133	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	224
134	JSON::Syck::Dump $_[0]	225	=item my $lock = cf::lock_acquire $string
		226
		227	Wait until the given lock is available and then acquires it and returns
		228	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		229	for example when the coroutine gets canceled), the lock is automatically
		230	returned.
		231
		232	Lock names should begin with a unique identifier (for example, cf::map::find
		233	uses map_find and cf::map::load uses map_load).
		234
		235	=cut
		236
		237	our %LOCK;
		238
		239	sub lock_wait($) {
		240	my ($key) = @_;
		241
		242	# wait for lock, if any
		243	while ($LOCK{$key}) {
		244	push @{ $LOCK{$key} }, $Coro::current;
		245	Coro::schedule;
		246	}
		247	}
		248
		249	sub lock_acquire($) {
		250	my ($key) = @_;
		251
		252	# wait, to be sure we are not locked
		253	lock_wait $key;
		254
		255	$LOCK{$key} = [];
		256
		257	Coro::guard {
		258	# wake up all waiters, to be on the safe side
		259	$_->ready for @{ delete $LOCK{$key} };
		260	}
		261	}
		262
		263	sub freeze_mainloop {
		264	return unless $TICK_WATCHER->is_active;
		265
		266	my $guard = Coro::guard {
		267	$TICK_WATCHER->start;
		268	};
		269	$TICK_WATCHER->stop;
		270	$guard
		271	}
		272
		273	=item cf::async { BLOCK }
		274
		275	Currently the same as Coro::async_pool, meaning you cannot use
		276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
		278
		279	=cut
		280
		281	BEGIN { *async = \&Coro::async_pool }
		282
		283	=item cf::sync_job { BLOCK }
		284
		285	The design of crossfire+ requires that the main coro ($Coro::main) is
		286	always able to handle events or runnable, as crossfire+ is only partly
		287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		288
		289	If it must be done, put the blocking parts into C<sync_job>. This will run
		290	the given BLOCK in another coroutine while waiting for the result. The
		291	server will be frozen during this time, so the block should either finish
		292	fast or be very important.
		293
		294	=cut
		295
		296	sub sync_job(&) {
		297	my ($job) = @_;
		298
		299	if ($Coro::current == $Coro::main) {
		300	# this is the main coro, too bad, we have to block
		301	# till the operation succeeds, freezing the server :/
		302
		303	# TODO: use suspend/resume instead
		304	# (but this is cancel-safe)
		305	my $freeze_guard = freeze_mainloop;
		306
		307	my $busy = 1;
		308	my @res;
		309
		310	(async {
		311	@res = eval { $job->() };
		312	warn $@ if $@;
		313	undef $busy;
		314	})->prio (Coro::PRIO_MAX);
		315
		316	while ($busy) {
		317	Coro::cede or Event::one_event;
		318	}
		319
		320	wantarray ? @res : $res[0]
		321	} else {
		322	# we are in another coroutine, how wonderful, everything just works
		323
		324	$job->()
		325	}
		326	}
		327
		328	=item $coro = cf::async_ext { BLOCK }
		329
		330	Like async, but this coro is automatically being canceled when the
		331	extension calling this is being unloaded.
		332
		333	=cut
		334
		335	sub async_ext(&) {
		336	my $cb = shift;
		337
		338	my $coro = &Coro::async ($cb);
		339
		340	$coro->on_destroy (sub {
		341	delete $EXT_CORO{$coro+0};
		342	});
		343	$EXT_CORO{$coro+0} = $coro;
		344
		345	$coro
		346	}
		347
		348	sub write_runtime {
		349	my $guard = cf::lock_acquire "write_runtime";
		350
		351	my $runtime = cf::localdir . "/runtime";
		352
		353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		354	or return;
		355
		356	my $value = $cf::RUNTIME + 90 + 10;
		357	# 10 is the runtime save interval, for a monotonic clock
		358	# 60 allows for the watchdog to kill the server.
		359
		360	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		361	and return;
		362
		363	# always fsync - this file is important
		364	aio_fsync $fh
		365	and return;
		366
		367	close $fh
		368	or return;
		369
		370	aio_rename "$runtime~", $runtime
		371	and return;
		372
		373	1
		374	}
		375
		376	=item cf::datalog type => key => value, ...
		377
		378	Log a datalog packet of the given type with the given key-value pairs.
		379
		380	=cut
		381
		382	sub datalog($@) {
		383	my ($type, %kv) = @_;
		384	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
135	}	385	}
136		386
137	=back	387	=back
138		388
139	=cut	389	=cut
140		390
141	#############################################################################	391	#############################################################################
142		392
143	=head2 ATTACHABLE OBJECTS	393	=head2 ATTACHABLE OBJECTS
144		394
145	You can define and attach attachments to each "attachable" object in	395	Many objects in crossfire are so-called attachable objects. That means you can
146	crossfire+ (objects, players, clients, maps and the special "global"	396	attach callbacks/event handlers (a collection of which is called an "attachment")
		397	to it. All such attachable objects support the following methods.
		398
147	class). In the following description, CLASS can be any of C<global>,	399	In the following description, CLASS can be any of C<global>, C<object>
148	C<object> C<player>, C<client> or C<map>.	400	C<player>, C<client> or C<map> (i.e. the attachable objects in
		401	crossfire+).
149		402
150	=over 4	403	=over 4
151		404
		405	=item $attachable->attach ($attachment, key => $value...)
		406
		407	=item $attachable->detach ($attachment)
		408
		409	Attach/detach a pre-registered attachment to a specific object and give it
		410	the specified key/value pairs as arguments.
		411
		412	Example, attach a minesweeper attachment to the given object, making it a
		413	10x10 minesweeper game:
		414
		415	$obj->attach (minesweeper => width => 10, height => 10);
		416
		417	=item $bool = $attachable->attached ($name)
		418
		419	Checks wether the named attachment is currently attached to the object.
		420
		421	=item cf::CLASS->attach ...
		422
		423	=item cf::CLASS->detach ...
		424
		425	Define an anonymous attachment and attach it to all objects of the given
		426	CLASS. See the next function for an explanation of its arguments.
		427
		428	You can attach to global events by using the C<cf::global> class.
		429
		430	Example, log all player logins:
		431
		432	cf::player->attach (
		433	on_login => sub {
		434	my ($pl) = @_;
		435	...
		436	},
		437	);
		438
		439	Example, attach to the jeweler skill:
		440
		441	cf::object->attach (
		442	type => cf::SKILL,
		443	subtype => cf::SK_JEWELER,
		444	on_use_skill => sub {
		445	my ($sk, $ob, $part, $dir, $msg) = @_;
		446	...
		447	},
		448	);
		449
152	=item cf::CLASS::attachment $name, ...	450	=item cf::CLASS::attachment $name, ...
153		451
154	Register an attachment by name through which attachable objects can refer	452	Register an attachment by C<$name> through which attachable objects of the
155	to this attachment.	453	given CLASS can refer to this attachment.
156		454
157	=item $bool = $attachable->attached ($name)	455	Some classes such as crossfire maps and objects can specify attachments
		456	that are attached at load/instantiate time, thus the need for a name.
158		457
159	Checks wether the named attachment is currently attached to the object.
160
161	=item $attachable->attach ($attachment, key => $value...)
162
163	=item $attachable->detach ($attachment)
164
165	Attach/detach a pre-registered attachment either to a specific object
166	(C<$attachable>) or all objects of the given class (if C<$attachable> is a
167	class in a static method call).
168
169	You can attach to global events by using the C<cf::global> class.
170
171	These method calls expect any number of the following handler/hook	458	These calls expect any number of the following handler/hook descriptions:
172	descriptions:
173		459
174	=over 4	460	=over 4
175		461
176	=item prio => $number	462	=item prio => $number
177		463
…		…
203	package and register them. Only handlers for eevents supported by the	489	package and register them. Only handlers for eevents supported by the
204	object/class are recognised.	490	object/class are recognised.
205		491
206	=back	492	=back
207		493
		494	Example, define an attachment called "sockpuppet" that calls the given
		495	event handler when a monster attacks:
		496
		497	cf::object::attachment sockpuppet =>
		498	on_skill_attack => sub {
		499	my ($self, $victim) = @_;
		500	...
		501	}
		502	}
		503
		504	=item $attachable->valid
		505
		506	Just because you have a perl object does not mean that the corresponding
		507	C-level object still exists. If you try to access an object that has no
		508	valid C counterpart anymore you get an exception at runtime. This method
		509	can be used to test for existence of the C object part without causing an
		510	exception.
		511
208	=cut	512	=cut
209		513
210	# the following variables are defined in .xs and must not be re-created	514	# the following variables are defined in .xs and must not be re-created
211	our @CB_GLOBAL = (); # registry for all global events	515	our @CB_GLOBAL = (); # registry for all global events
		516	our @CB_ATTACHABLE = (); # registry for all attachables
212	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	517	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
213	our @CB_PLAYER = ();	518	our @CB_PLAYER = ();
214	our @CB_CLIENT = ();	519	our @CB_CLIENT = ();
215	our @CB_TYPE = (); # registry for type (cf-object class) based events	520	our @CB_TYPE = (); # registry for type (cf-object class) based events
216	our @CB_MAP = ();	521	our @CB_MAP = ();
217		522
218	my %attachment;	523	my %attachment;
		524
		525	sub cf::attachable::thawer_merge {
		526	# simply override everything except _meta
		527	local $_[0]{_meta};
		528	%{$_[0]} = %{$_[1]};
		529	}
219		530
220	sub _attach_cb($$$$) {	531	sub _attach_cb($$$$) {
221	my ($registry, $event, $prio, $cb) = @_;	532	my ($registry, $event, $prio, $cb) = @_;
222		533
223	use sort 'stable';	534	use sort 'stable';
…		…
226		537
227	@{$registry->[$event]} = sort	538	@{$registry->[$event]} = sort
228	{ $a->[0] cmp $b->[0] }	539	{ $a->[0] cmp $b->[0] }
229	@{$registry->[$event] || []}, $cb;	540	@{$registry->[$event] || []}, $cb;
230	}	541	}
		542
		543	# hack
		544	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
231		545
232	# attach handles attaching event callbacks	546	# attach handles attaching event callbacks
233	# the only thing the caller has to do is pass the correct	547	# the only thing the caller has to do is pass the correct
234	# registry (== where the callback attaches to).	548	# registry (== where the callback attaches to).
235	sub _attach {	549	sub _attach {
…		…
237		551
238	my $object_type;	552	my $object_type;
239	my $prio = 0;	553	my $prio = 0;
240	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	554	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
241		555
		556	#TODO: get rid of this hack
		557	if ($attachable_klass{$klass}) {
		558	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		559	}
		560
242	while (@arg) {	561	while (@arg) {
243	my $type = shift @arg;	562	my $type = shift @arg;
244		563
245	if ($type eq "prio") {	564	if ($type eq "prio") {
246	$prio = shift @arg;	565	$prio = shift @arg;
…		…
321	my ($obj, $name) = @_;	640	my ($obj, $name) = @_;
322		641
323	exists $obj->{_attachment}{$name}	642	exists $obj->{_attachment}{$name}
324	}	643	}
325		644
326	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	645	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
327	eval "#line " . __LINE__ . " 'cf.pm'	646	eval "#line " . __LINE__ . " 'cf.pm'
328	sub cf::\L$klass\E::_attach_registry {	647	sub cf::\L$klass\E::_attach_registry {
329	(\\\@CB_$klass, KLASS_$klass)	648	(\\\@CB_$klass, KLASS_$klass)
330	}	649	}
331		650
…		…
367	}	686	}
368		687
369	0	688	0
370	}	689	}
371		690
372	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	691	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
373		692
374	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
375
376	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
377
378	=item $bool = $client->invoke (EVENT_CLIENT_XXX, ...)	693	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
379		694
380	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
381
382	Generate a global/object/player/map-specific event with the given arguments.	695	Generate an object-specific event with the given arguments.
383		696
384	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be	697	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
385	removed in future versions), and there is no public API to access override	698	removed in future versions), and there is no public API to access override
386	results (if you must, access C<@cf::invoke_results> directly).	699	results (if you must, access C<@cf::invoke_results> directly).
387		700
388	=back	701	=back
389		702
390	=cut	703	=cut
391		704
392	#############################################################################	705	#############################################################################
393
394	=head2 METHODS VALID FOR ALL ATTACHABLE OBJECTS
395
396	Attachable objects includes objects, players, clients and maps.
397
398	=over 4
399
400	=item $object->valid
401
402	Just because you have a perl object does not mean that the corresponding
403	C-level object still exists. If you try to access an object that has no
404	valid C counterpart anymore you get an exception at runtime. This method
405	can be used to test for existence of the C object part without causing an
406	exception.
407
408	=back
409
410	=cut
411
412	#############################################################################
413	# object support	706	# object support
414		707
415	sub instantiate {
416	my ($obj, $data) = @_;
417
418	$data = from_json $data;
419
420	for (@$data) {
421	my ($name, $args) = @$_;
422
423	$obj->attach ($name, %{$args || {} });
424	}
425	}
426
427	# basically do the same as instantiate, without calling instantiate
428	sub reattach {	708	sub reattach {
		709	# basically do the same as instantiate, without calling instantiate
429	my ($obj) = @_;	710	my ($obj) = @_;
		711
		712	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		713
430	my $registry = $obj->registry;	714	my $registry = $obj->registry;
431		715
432	@$registry = ();	716	@$registry = ();
433		717
434	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	718	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
443	warn "object uses attachment '$name' that is not available, postponing.\n";	727	warn "object uses attachment '$name' that is not available, postponing.\n";
444	}	728	}
445	}	729	}
446	}	730	}
447		731
448	sub object_freezer_save {	732	cf::attachable->attach (
449	my ($filename, $rdata, $objs) = @_;
450
451	if (length $$rdata) {
452	warn sprintf "saving %s (%d,%d)\n",
453	$filename, length $$rdata, scalar @$objs;
454
455	if (open my $fh, ">:raw", "$filename~") {
456	chmod SAVE_MODE, $fh;
457	syswrite $fh, $$rdata;
458	close $fh;
459
460	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
461	chmod SAVE_MODE, $fh;
462	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
463	close $fh;
464	rename "$filename.pst~", "$filename.pst";
465	} else {
466	unlink "$filename.pst";
467	}
468
469	rename "$filename~", $filename;
470	} else {
471	warn "FATAL: $filename~: $!\n";
472	}
473	} else {
474	unlink $filename;
475	unlink "$filename.pst";
476	}
477	}
478
479	sub object_freezer_as_string {
480	my ($rdata, $objs) = @_;
481
482	use Data::Dumper;
483
484	$$rdata . Dumper $objs
485	}
486
487	sub object_thawer_load {
488	my ($filename) = @_;
489
490	local $/;
491
492	my $av;
493
494	#TODO: use sysread etc.
495	if (open my $data, "<:raw:perlio", $filename) {
496	$data = <$data>;
497	if (open my $pst, "<:raw:perlio", "$filename.pst") {
498	$av = eval { (Storable::thaw <$pst>)->{objs} };
499	}
500	return ($data, $av);
501	}
502
503	()
504	}
505
506	cf::object->attach (
507	prio => -1000000,	733	prio => -1000000,
		734	on_instantiate => sub {
		735	my ($obj, $data) = @_;
		736
		737	$data = from_json $data;
		738
		739	for (@$data) {
		740	my ($name, $args) = @$_;
		741
		742	$obj->attach ($name, %{$args || {} });
		743	}
		744	},
		745	on_reattach => \&reattach,
508	on_clone => sub {	746	on_clone => sub {
509	my ($src, $dst) = @_;	747	my ($src, $dst) = @_;
510		748
511	@{$dst->registry} = @{$src->registry};	749	@{$dst->registry} = @{$src->registry};
512		750
…		…
515	%{$dst->{_attachment}} = %{$src->{_attachment}}	753	%{$dst->{_attachment}} = %{$src->{_attachment}}
516	if exists $src->{_attachment};	754	if exists $src->{_attachment};
517	},	755	},
518	);	756	);
519		757
		758	sub object_freezer_save {
		759	my ($filename, $rdata, $objs) = @_;
		760
		761	sync_job {
		762	if (length $$rdata) {
		763	warn sprintf "saving %s (%d,%d)\n",
		764	$filename, length $$rdata, scalar @$objs;
		765
		766	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		767	chmod SAVE_MODE, $fh;
		768	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		769	aio_fsync $fh if $cf::USE_FSYNC;
		770	close $fh;
		771
		772	if (@$objs) {
		773	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		774	chmod SAVE_MODE, $fh;
		775	my $data = Storable::nfreeze { version => 1, objs => $objs };
		776	aio_write $fh, 0, (length $data), $data, 0;
		777	aio_fsync $fh if $cf::USE_FSYNC;
		778	close $fh;
		779	aio_rename "$filename.pst~", "$filename.pst";
		780	}
		781	} else {
		782	aio_unlink "$filename.pst";
		783	}
		784
		785	aio_rename "$filename~", $filename;
		786	} else {
		787	warn "FATAL: $filename~: $!\n";
		788	}
		789	} else {
		790	aio_unlink $filename;
		791	aio_unlink "$filename.pst";
		792	}
		793	}
		794	}
		795
		796	sub object_freezer_as_string {
		797	my ($rdata, $objs) = @_;
		798
		799	use Data::Dumper;
		800
		801	$$rdata . Dumper $objs
		802	}
		803
		804	sub object_thawer_load {
		805	my ($filename) = @_;
		806
		807	my ($data, $av);
		808
		809	(aio_load $filename, $data) >= 0
		810	or return;
		811
		812	unless (aio_stat "$filename.pst") {
		813	(aio_load "$filename.pst", $av) >= 0
		814	or return;
		815	$av = eval { (Storable::thaw $av)->{objs} };
		816	}
		817
		818	warn sprintf "loading %s (%d)\n",
		819	$filename, length $data, scalar @{$av || []};#d#
		820	return ($data, $av);
		821	}
		822
520	#############################################################################	823	#############################################################################
521	# command handling &c	824	# command handling &c
522		825
523	=item cf::register_command $name => \&callback($ob,$args);	826	=item cf::register_command $name => \&callback($ob,$args);
524		827
…		…
546	=cut	849	=cut
547		850
548	sub register_extcmd {	851	sub register_extcmd {
549	my ($name, $cb) = @_;	852	my ($name, $cb) = @_;
550		853
551	my $caller = caller;
552	#warn "registering extcmd '$name' to '$caller'";
553
554	$EXTCMD{$name} = [$cb, $caller];	854	$EXTCMD{$name} = $cb;
555	}	855	}
556		856
557	cf::player->attach (	857	cf::player->attach (
558	on_command => sub {	858	on_command => sub {
559	my ($pl, $name, $params) = @_;	859	my ($pl, $name, $params) = @_;
…		…
572		872
573	my $msg = eval { from_json $buf };	873	my $msg = eval { from_json $buf };
574		874
575	if (ref $msg) {	875	if (ref $msg) {
576	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
577	if (my %reply = $cb->[0]->($pl, $msg)) {	877	if (my %reply = $cb->($pl, $msg)) {
578	$pl->ext_reply ($msg->{msgid}, %reply);	878	$pl->ext_reply ($msg->{msgid}, %reply);
579	}	879	}
580	}	880	}
581	} else {	881	} else {
582	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	882	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
584		884
585	cf::override;	885	cf::override;
586	},	886	},
587	);	887	);
588		888
589	sub register {
590	my ($base, $pkg) = @_;
591
592	#TODO
593	}
594
595	sub load_extension {	889	sub load_extension {
596	my ($path) = @_;	890	my ($path) = @_;
597		891
598	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
599	my $base = $1;	893	my $base = $1;
600	my $pkg = $1;	894	my $pkg = $1;
601	$pkg =~ s/[^[:word:]]/_/g;	895	$pkg =~ s/[^[:word:]]/_/g;
602	$pkg = "ext::$pkg";	896	$pkg = "ext::$pkg";
603		897
604	warn "loading '$path' into '$pkg'\n";	898	warn "... loading '$path' into '$pkg'\n";
605		899
606	open my $fh, "<:utf8", $path	900	open my $fh, "<:utf8", $path
607	or die "$path: $!";	901	or die "$path: $!";
608		902
609	my $source =	903	my $source =
610	"package $pkg; use strict; use utf8;\n"	904	"package $pkg; use strict; use utf8;\n"
611	. "#line 1 \"$path\"\n{\n"	905	. "#line 1 \"$path\"\n{\n"
612	. (do { local $/; <$fh> })	906	. (do { local $/; <$fh> })
613	. "\n};\n1";	907	. "\n};\n1";
614		908
615	eval $source	909	unless (eval $source) {
616	or die $@ ? "$path: $@\n"	910	my $msg = $@ ? "$path: $@\n"
617	: "extension disabled.\n";	911	: "extension disabled.\n";
618		912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
619	push @exts, $pkg;	913	warn $@;
620	$ext_pkg{$base} = $pkg;	914	warn "mandatory extension failed to load, exiting.\n";
621		915	exit 1;
622	# no strict 'refs';	916	}
623	# @{"$pkg\::ISA"} = ext::;	917	die $@;
624
625	register $base, $pkg;
626	}
627
628	sub unload_extension {
629	my ($pkg) = @_;
630
631	warn "removing extension $pkg\n";
632
633	# remove hooks
634	#TODO
635	# for my $idx (0 .. $#PLUGIN_EVENT) {
636	# delete $hook[$idx]{$pkg};
637	# }	918	}
638		919
639	# remove commands	920	push @EXTS, $pkg;
640	for my $name (keys %COMMAND) {
641	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
642
643	if (@cb) {
644	$COMMAND{$name} = \@cb;
645	} else {
646	delete $COMMAND{$name};
647	}
648	}
649
650	# remove extcmds
651	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
652	delete $EXTCMD{$name};
653	}
654
655	if (my $cb = $pkg->can ("unload")) {
656	eval {
657	$cb->($pkg);
658	1
659	} or warn "$pkg unloaded, but with errors: $@";
660	}
661
662	Symbol::delete_package $pkg;
663	}	921	}
664		922
665	sub load_extensions {	923	sub load_extensions {
666	for my $ext (<$LIBDIR/*.ext>) {	924	for my $ext (<$LIBDIR/*.ext>) {
667	next unless -r $ext;	925	next unless -r $ext;
…		…
671	} or warn "$ext not loaded: $@";	929	} or warn "$ext not loaded: $@";
672	}	930	}
673	}	931	}
674		932
675	#############################################################################	933	#############################################################################
676	# load/save/clean perl data associated with a map
677		934
678	*cf::mapsupport::on_clean = sub {	935	=head2 CORE EXTENSIONS
		936
		937	Functions and methods that extend core crossfire objects.
		938
		939	=cut
		940
		941	package cf::player;
		942
		943	use Coro::AIO;
		944
		945	=head3 cf::player
		946
		947	=over 4
		948
		949	=item cf::player::find $login
		950
		951	Returns the given player object, loading it if necessary (might block).
		952
		953	=cut
		954
		955	sub playerdir($) {
		956	cf::localdir
		957	. "/"
		958	. cf::playerdir
		959	. "/"
		960	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		961	}
		962
		963	sub path($) {
		964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		965
		966	(playerdir $login) . "/playerdata"
		967	}
		968
		969	sub find_active($) {
		970	$cf::PLAYER{$_[0]}
		971	and $cf::PLAYER{$_[0]}->active
		972	and $cf::PLAYER{$_[0]}
		973	}
		974
		975	sub exists($) {
		976	my ($login) = @_;
		977
		978	$cf::PLAYER{$login}
		979	or cf::sync_job { !aio_stat path $login }
		980	}
		981
		982	sub find($) {
		983	return $cf::PLAYER{$_[0]} || do {
		984	my $login = $_[0];
		985
		986	my $guard = cf::lock_acquire "user_find:$login";
		987
		988	$cf::PLAYER{$_[0]} || do {
		989	# rename old playerfiles to new ones
		990	#TODO: remove when no longer required
		991	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		992	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		993	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		994	aio_unlink +(playerdir $login) . "/$login.pl";
		995
		996	my $pl = load_pl path $login
		997	or return;
		998	$cf::PLAYER{$login} = $pl
		999	}
		1000	}
		1001	}
		1002
		1003	sub save($) {
		1004	my ($pl) = @_;
		1005
		1006	return if $pl->{deny_save};
		1007
		1008	my $path = path $pl;
		1009	my $guard = cf::lock_acquire "user_save:$path";
		1010
		1011	return if $pl->{deny_save};
		1012
		1013	aio_mkdir playerdir $pl, 0770;
		1014	$pl->{last_save} = $cf::RUNTIME;
		1015
		1016	$pl->save_pl ($path);
		1017	Coro::cede;
		1018	}
		1019
		1020	sub new($) {
		1021	my ($login) = @_;
		1022
		1023	my $self = create;
		1024
		1025	$self->ob->name ($login);
		1026	$self->{deny_save} = 1;
		1027
		1028	$cf::PLAYER{$login} = $self;
		1029
		1030	$self
		1031	}
		1032
		1033	=item $pl->quit_character
		1034
		1035	Nukes the player without looking back. If logged in, the connection will
		1036	be destroyed. May block for a long time.
		1037
		1038	=cut
		1039
		1040	sub quit_character {
		1041	my ($pl) = @_;
		1042
		1043	my $name = $pl->ob->name;
		1044
		1045	$pl->{deny_save} = 1;
		1046	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1047
		1048	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1049	$pl->deactivate;
		1050	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1051	$pl->ns->destroy if $pl->ns;
		1052
		1053	my $path = playerdir $pl;
		1054	my $temp = "$path~$cf::RUNTIME~deleting~";
		1055	aio_rename $path, $temp;
		1056	delete $cf::PLAYER{$pl->ob->name};
		1057	$pl->destroy;
		1058
		1059	my $prefix = qr<^~\Q$name\E/>;
		1060
		1061	# nuke player maps
		1062	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1063
		1064	IO::AIO::aio_rmtree $temp;
		1065	}
		1066
		1067	=item $pl->kick
		1068
		1069	Kicks a player out of the game. This destroys the connection.
		1070
		1071	=cut
		1072
		1073	sub kick {
		1074	my ($pl, $kicker) = @_;
		1075
		1076	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1077	$pl->killer ("kicked");
		1078	$pl->ns->destroy;
		1079	}
		1080
		1081	=item cf::player::list_logins
		1082
		1083	Returns am arrayref of all valid playernames in the system, can take a
		1084	while and may block, so not sync_job-capable, ever.
		1085
		1086	=cut
		1087
		1088	sub list_logins {
		1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1090	or return [];
		1091
		1092	my @logins;
		1093
		1094	for my $login (@$dirs) {
		1095	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1096	aio_read $fh, 0, 512, my $buf, 0 or next;
		1097	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1098
		1099	utf8::decode $login;
		1100	push @logins, $login;
		1101	}
		1102
		1103	\@logins
		1104	}
		1105
		1106	=item $player->maps
		1107
		1108	Returns an arrayref of map paths that are private for this
		1109	player. May block.
		1110
		1111	=cut
		1112
		1113	sub maps($) {
		1114	my ($pl) = @_;
		1115
		1116	$pl = ref $pl ? $pl->ob->name : $pl;
		1117
		1118	my $files = aio_readdir playerdir $pl
		1119	or return;
		1120
		1121	my @paths;
		1122
		1123	for (@$files) {
		1124	utf8::decode $_;
		1125	next if /\.(?:pl|pst)$/;
		1126	next unless /^$PATH_SEP/o;
		1127
		1128	push @paths, cf::map::normalise "~$pl/$_";
		1129	}
		1130
		1131	\@paths
		1132	}
		1133
		1134	=item $player->ext_reply ($msgid, %msg)
		1135
		1136	Sends an ext reply to the player.
		1137
		1138	=cut
		1139
		1140	sub ext_reply($$%) {
		1141	my ($self, $id, %msg) = @_;
		1142
		1143	$msg{msgid} = $id;
		1144
		1145	$self->send ("ext " . cf::to_json \%msg);
		1146	}
		1147
		1148	=item $player->ext_event ($type, %msg)
		1149
		1150	Sends an ext event to the client.
		1151
		1152	=cut
		1153
		1154	sub ext_event($$%) {
		1155	my ($self, $type, %msg) = @_;
		1156
		1157	$self->ns->ext_event ($type, %msg);
		1158	}
		1159
		1160	=head3 cf::region
		1161
		1162	=over 4
		1163
		1164	=cut
		1165
		1166	package cf::region;
		1167
		1168	=item cf::region::find_by_path $path
		1169
		1170	Tries to decuce the probable region for a map knowing only its path.
		1171
		1172	=cut
		1173
		1174	sub find_by_path($) {
		1175	my ($path) = @_;
		1176
		1177	my ($match, $specificity);
		1178
		1179	for my $region (list) {
		1180	if ($region->match && $path =~ $region->match) {
		1181	($match, $specificity) = ($region, $region->specificity)
		1182	if $region->specificity > $specificity;
		1183	}
		1184	}
		1185
		1186	$match
		1187	}
		1188
		1189	=back
		1190
		1191	=head3 cf::map
		1192
		1193	=over 4
		1194
		1195	=cut
		1196
		1197	package cf::map;
		1198
		1199	use Fcntl;
		1200	use Coro::AIO;
		1201
		1202	use overload
		1203	'""' => \&as_string,
		1204	fallback => 1;
		1205
		1206	our $MAX_RESET = 3600;
		1207	our $DEFAULT_RESET = 3000;
		1208
		1209	sub generate_random_map {
		1210	my ($self, $rmp) = @_;
		1211	# mit "rum" bekleckern, nicht
		1212	$self->_create_random_map (
		1213	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1214	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1215	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1216	$rmp->{exit_on_final_map},
		1217	$rmp->{xsize}, $rmp->{ysize},
		1218	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1219	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1220	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1221	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1222	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1223	(cf::region::find $rmp->{region}), $rmp->{custom}
		1224	)
		1225	}
		1226
		1227	=item cf::map->register ($regex, $prio)
		1228
		1229	Register a handler for the map path matching the given regex at the
		1230	givne priority (higher is better, built-in handlers have priority 0, the
		1231	default).
		1232
		1233	=cut
		1234
		1235	sub register {
		1236	my (undef, $regex, $prio) = @_;
		1237	my $pkg = caller;
		1238
		1239	no strict;
		1240	push @{"$pkg\::ISA"}, __PACKAGE__;
		1241
		1242	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1243	}
		1244
		1245	# also paths starting with '/'
		1246	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1247
		1248	sub thawer_merge {
		1249	my ($self, $merge) = @_;
		1250
		1251	# we have to keep some variables in memory intact
		1252	local $self->{path};
		1253	local $self->{load_path};
		1254	local $self->{deny_save};
		1255	local $self->{deny_reset};
		1256
		1257	$self->SUPER::thawer_merge ($merge);
		1258	}
		1259
		1260	sub normalise {
		1261	my ($path, $base) = @_;
		1262
		1263	$path = "$path"; # make sure its a string
		1264
		1265	$path =~ s/\.map$//;
		1266
		1267	# map plan:
		1268	#
		1269	# /! non-realised random map exit (special hack!)
		1270	# {... are special paths that are not being touched
		1271	# ?xxx/... are special absolute paths
		1272	# ?random/... random maps
		1273	# /... normal maps
		1274	# ~user/... per-player map of a specific user
		1275
		1276	$path =~ s/$PATH_SEP/\//go;
		1277
		1278	# treat it as relative path if it starts with
		1279	# something that looks reasonable
		1280	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1281	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1282
		1283	$base =~ s{[^/]+/?$}{};
		1284	$path = "$base/$path";
		1285	}
		1286
		1287	for ($path) {
		1288	redo if s{//}{/};
		1289	redo if s{/\.?/}{/};
		1290	redo if s{/[^/]+/\.\./}{/};
		1291	}
		1292
		1293	$path
		1294	}
		1295
		1296	sub new_from_path {
		1297	my (undef, $path, $base) = @_;
		1298
		1299	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1300
		1301	$path = normalise $path, $base;
		1302
		1303	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1304	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1305	my $self = bless cf::map::new, $pkg;
		1306	$self->{path} = $path; $self->path ($path);
		1307	$self->init; # pass $1 etc.
		1308	return $self;
		1309	}
		1310	}
		1311
		1312	Carp::carp "unable to resolve path '$path' (base '$base').";
		1313	()
		1314	}
		1315
		1316	sub init {
		1317	my ($self) = @_;
		1318
		1319	$self
		1320	}
		1321
		1322	sub as_string {
		1323	my ($self) = @_;
		1324
		1325	"$self->{path}"
		1326	}
		1327
		1328	# the displayed name, this is a one way mapping
		1329	sub visible_name {
		1330	&as_string
		1331	}
		1332
		1333	# the original (read-only) location
		1334	sub load_path {
		1335	my ($self) = @_;
		1336
		1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1338	}
		1339
		1340	# the temporary/swap location
		1341	sub save_path {
		1342	my ($self) = @_;
		1343
		1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1346	}
		1347
		1348	# the unique path, undef == no special unique path
		1349	sub uniq_path {
		1350	my ($self) = @_;
		1351
		1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1354	}
		1355
		1356	# and all this just because we cannot iterate over
		1357	# all maps in C++...
		1358	sub change_all_map_light {
		1359	my ($change) = @_;
		1360
		1361	$_->change_map_light ($change)
		1362	for grep $_->outdoor, values %cf::MAP;
		1363	}
		1364
		1365	sub unlink_save {
		1366	my ($self) = @_;
		1367
		1368	utf8::encode (my $save = $self->save_path);
		1369	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1370	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1371	}
		1372
		1373	sub load_header_from($) {
		1374	my ($self, $path) = @_;
		1375
		1376	utf8::encode $path;
		1377	#aio_open $path, O_RDONLY, 0
		1378	# or return;
		1379
		1380	$self->_load_header ($path)
		1381	or return;
		1382
		1383	$self->{load_path} = $path;
		1384
		1385	1
		1386	}
		1387
		1388	sub load_header_orig {
		1389	my ($self) = @_;
		1390
		1391	$self->load_header_from ($self->load_path)
		1392	}
		1393
		1394	sub load_header_temp {
		1395	my ($self) = @_;
		1396
		1397	$self->load_header_from ($self->save_path)
		1398	}
		1399
		1400	sub prepare_temp {
		1401	my ($self) = @_;
		1402
		1403	$self->last_access ((delete $self->{last_access})
		1404	|| $cf::RUNTIME); #d#
		1405	# safety
		1406	$self->{instantiate_time} = $cf::RUNTIME
		1407	if $self->{instantiate_time} > $cf::RUNTIME;
		1408	}
		1409
		1410	sub prepare_orig {
		1411	my ($self) = @_;
		1412
		1413	$self->{load_original} = 1;
		1414	$self->{instantiate_time} = $cf::RUNTIME;
		1415	$self->last_access ($cf::RUNTIME);
		1416	$self->instantiate;
		1417	}
		1418
		1419	sub load_header {
		1420	my ($self) = @_;
		1421
		1422	if ($self->load_header_temp) {
		1423	$self->prepare_temp;
		1424	} else {
		1425	$self->load_header_orig
		1426	or return;
		1427	$self->prepare_orig;
		1428	}
		1429
		1430	$self->default_region (cf::region::find_by_path $self->{path})
		1431	unless $self->default_region;
		1432
		1433	1
		1434	}
		1435
		1436	sub find;
		1437	sub find {
		1438	my ($path, $origin) = @_;
		1439
		1440	$path = normalise $path, $origin && $origin->path;
		1441
		1442	cf::lock_wait "map_find:$path";
		1443
		1444	$cf::MAP{$path} || do {
		1445	my $guard = cf::lock_acquire "map_find:$path";
		1446	my $map = new_from_path cf::map $path
		1447	or return;
		1448
		1449	$map->{last_save} = $cf::RUNTIME;
		1450
		1451	$map->load_header
		1452	or return;
		1453
		1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1455	# doing this can freeze the server in a sync job, obviously
		1456	#$cf::WAIT_FOR_TICK->wait;
		1457	$map->reset;
		1458	undef $guard;
		1459	return find $path;
		1460	}
		1461
		1462	$cf::MAP{$path} = $map
		1463	}
		1464	}
		1465
		1466	sub pre_load { }
		1467	sub post_load { }
		1468
		1469	sub load {
		1470	my ($self) = @_;
		1471
		1472	local $self->{deny_reset} = 1; # loading can take a long time
		1473
		1474	my $path = $self->{path};
		1475	my $guard = cf::lock_acquire "map_load:$path";
		1476
		1477	return if $self->in_memory != cf::MAP_SWAPPED;
		1478
		1479	$self->in_memory (cf::MAP_LOADING);
		1480
		1481	$self->alloc;
		1482
		1483	$self->pre_load;
		1484	Coro::cede;
		1485
		1486	$self->_load_objects ($self->{load_path}, 1)
		1487	or return;
		1488
		1489	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1490	if delete $self->{load_original};
		1491
		1492	if (my $uniq = $self->uniq_path) {
		1493	utf8::encode $uniq;
		1494	if (aio_open $uniq, O_RDONLY, 0) {
		1495	$self->clear_unique_items;
		1496	$self->_load_objects ($uniq, 0);
		1497	}
		1498	}
		1499
		1500	Coro::cede;
		1501	# now do the right thing for maps
		1502	$self->link_multipart_objects;
		1503	Coro::cede;
		1504
		1505	unless ($self->{deny_activate}) {
		1506	$self->decay_objects;
		1507	$self->fix_auto_apply;
		1508	$self->update_buttons;
		1509	Coro::cede;
		1510	$self->set_darkness_map;
		1511	$self->difficulty ($self->estimate_difficulty)
		1512	unless $self->difficulty;
		1513	Coro::cede;
		1514	$self->activate;
		1515	Coro::cede;
		1516	}
		1517
		1518	$self->post_load;
		1519	Coro::cede;
		1520
		1521	$self->in_memory (cf::MAP_IN_MEMORY);
		1522	}
		1523
		1524	sub customise_for {
		1525	my ($self, $ob) = @_;
		1526
		1527	return find "~" . $ob->name . "/" . $self->{path}
		1528	if $self->per_player;
		1529
		1530	$self
		1531	}
		1532
		1533	# find and load all maps in the 3x3 area around a map
		1534	sub load_diag {
679	my ($map) = @_;	1535	my ($map) = @_;
680		1536
681	my $path = $map->tmpname;	1537	my @diag; # diagonal neighbours
682	defined $path or return;
683		1538
684	unlink "$path.pst";	1539	for (0 .. 3) {
685	};	1540	my $neigh = $map->tile_path ($_)
		1541	or next;
		1542	$neigh = find $neigh, $map
		1543	or next;
		1544	$neigh->load;
686		1545
687	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1546	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1547	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1548	}
688		1549
689	#############################################################################	1550	for (@diag) {
690	# load/save perl data associated with player->ob objects	1551	my $neigh = find @$_
691		1552	or next;
692	sub all_objects(@) {	1553	$neigh->load;
693	@_, map all_objects ($_->inv), @_	1554	}
694	}	1555	}
695		1556
696	# TODO: compatibility cruft, remove when no longer needed	1557	sub find_sync {
697	cf::player->attach (	1558	my ($path, $origin) = @_;
698	on_load => sub {
699	my ($pl, $path) = @_;
700		1559
701	for my $o (all_objects $pl->ob) {	1560	cf::sync_job { find $path, $origin }
702	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1561	}
703	$o->set_ob_key_value ("_perl_data");
704		1562
705	%$o = %{ Storable::thaw pack "H*", $value };	1563	sub do_load_sync {
		1564	my ($map) = @_;
		1565
		1566	cf::sync_job { $map->load };
		1567	}
		1568
		1569	our %MAP_PREFETCH;
		1570	our $MAP_PREFETCHER = undef;
		1571
		1572	sub find_async {
		1573	my ($path, $origin) = @_;
		1574
		1575	$path = normalise $path, $origin && $origin->{path};
		1576
		1577	if (my $map = $cf::MAP{$path}) {
		1578	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1579	}
		1580
		1581	undef $MAP_PREFETCH{$path};
		1582	$MAP_PREFETCHER ||= cf::async {
		1583	while (%MAP_PREFETCH) {
		1584	for my $path (keys %MAP_PREFETCH) {
		1585	my $map = find $path
		1586	or next;
		1587	$map->load;
		1588
		1589	delete $MAP_PREFETCH{$path};
706	}	1590	}
707	}	1591	}
		1592	undef $MAP_PREFETCHER;
		1593	};
		1594	$MAP_PREFETCHER->prio (6);
		1595
		1596	()
		1597	}
		1598
		1599	sub save {
		1600	my ($self) = @_;
		1601
		1602	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1603
		1604	$self->{last_save} = $cf::RUNTIME;
		1605
		1606	return unless $self->dirty;
		1607
		1608	my $save = $self->save_path; utf8::encode $save;
		1609	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1610
		1611	$self->{load_path} = $save;
		1612
		1613	return if $self->{deny_save};
		1614
		1615	local $self->{last_access} = $self->last_access;#d#
		1616
		1617	cf::async {
		1618	$_->contr->save for $self->players;
		1619	};
		1620
		1621	if ($uniq) {
		1622	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1623	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1624	} else {
		1625	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
708	},	1626	}
709	);	1627	}
710		1628
711	#############################################################################	1629	sub swap_out {
		1630	my ($self) = @_;
712		1631
713	=head2 CORE EXTENSIONS	1632	# save first because save cedes
		1633	$self->save;
714		1634
715	Functions and methods that extend core crossfire objects.	1635	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1636
		1637	return if $self->players;
		1638	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1639	return if $self->{deny_save};
		1640
		1641	$self->clear;
		1642	$self->in_memory (cf::MAP_SWAPPED);
		1643	}
		1644
		1645	sub reset_at {
		1646	my ($self) = @_;
		1647
		1648	# TODO: safety, remove and allow resettable per-player maps
		1649	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1650	return 1e99 if $self->{deny_reset};
		1651
		1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1654
		1655	$time + $to
		1656	}
		1657
		1658	sub should_reset {
		1659	my ($self) = @_;
		1660
		1661	$self->reset_at <= $cf::RUNTIME
		1662	}
		1663
		1664	sub reset {
		1665	my ($self) = @_;
		1666
		1667	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1668
		1669	return if $self->players;
		1670	return if $self->isa ("ext::map_per_player");#d#
		1671
		1672	warn "resetting map ", $self->path;#d#
		1673
		1674	$self->in_memory (cf::MAP_SWAPPED);
		1675
		1676	# need to save uniques path
		1677	unless ($self->{deny_save}) {
		1678	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1679
		1680	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1681	if $uniq;
		1682	}
		1683
		1684	delete $cf::MAP{$self->path};
		1685
		1686	$self->clear;
		1687
		1688	$_->clear_links_to ($self) for values %cf::MAP;
		1689
		1690	$self->unlink_save;
		1691	$self->destroy;
		1692	}
		1693
		1694	my $nuke_counter = "aaaa";
		1695
		1696	sub nuke {
		1697	my ($self) = @_;
		1698
		1699	delete $cf::MAP{$self->path};
		1700
		1701	$self->unlink_save;
		1702
		1703	bless $self, "cf::map";
		1704	delete $self->{deny_reset};
		1705	$self->{deny_save} = 1;
		1706	$self->reset_timeout (1);
		1707	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1708
		1709	$cf::MAP{$self->path} = $self;
		1710
		1711	$self->reset; # polite request, might not happen
		1712	}
		1713
		1714	=item cf::map::unique_maps
		1715
		1716	Returns an arrayref of paths of all shared maps that have
		1717	instantiated unique items. May block.
		1718
		1719	=cut
		1720
		1721	sub unique_maps() {
		1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1723	or return;
		1724
		1725	my @paths;
		1726
		1727	for (@$files) {
		1728	utf8::decode $_;
		1729	next if /\.pst$/;
		1730	next unless /^$PATH_SEP/o;
		1731
		1732	push @paths, cf::map::normalise $_;
		1733	}
		1734
		1735	\@paths
		1736	}
		1737
		1738	package cf;
		1739
		1740	=back
		1741
		1742	=head3 cf::object
		1743
		1744	=cut
		1745
		1746	package cf::object;
716		1747
717	=over 4	1748	=over 4
718		1749
719	=item cf::player::exists $login	1750	=item $ob->inv_recursive
720		1751
721	Returns true when the given account exists.	1752	Returns the inventory of the object _and_ their inventories, recursively.
722		1753
723	=cut	1754	=cut
724		1755
725	sub cf::player::exists($) {	1756	sub inv_recursive_;
726	cf::player::find $_[0]	1757	sub inv_recursive_ {
727	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1758	map { $_, inv_recursive_ $_->inv } @_
728	}	1759	}
		1760
		1761	sub inv_recursive {
		1762	inv_recursive_ inv $_[0]
		1763	}
		1764
		1765	package cf;
		1766
		1767	=back
		1768
		1769	=head3 cf::object::player
		1770
		1771	=over 4
729		1772
730	=item $player_object->reply ($npc, $msg[, $flags])	1773	=item $player_object->reply ($npc, $msg[, $flags])
731		1774
732	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1775	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
733	can be C<undef>. Does the right thing when the player is currently in a	1776	can be C<undef>. Does the right thing when the player is currently in a
…		…
735		1778
736	=cut	1779	=cut
737		1780
738	# rough implementation of a future "reply" method that works	1781	# rough implementation of a future "reply" method that works
739	# with dialog boxes.	1782	# with dialog boxes.
		1783	#TODO: the first argument must go, split into a $npc->reply_to ( method
740	sub cf::object::player::reply($$$;$) {	1784	sub cf::object::player::reply($$$;$) {
741	my ($self, $npc, $msg, $flags) = @_;	1785	my ($self, $npc, $msg, $flags) = @_;
742		1786
743	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1787	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
744		1788
…		…
748	$msg = $npc->name . " says: $msg" if $npc;	1792	$msg = $npc->name . " says: $msg" if $npc;
749	$self->message ($msg, $flags);	1793	$self->message ($msg, $flags);
750	}	1794	}
751	}	1795	}
752		1796
753	=item $player->ext_reply ($msgid, $msgtype, %msg)
754
755	Sends an ext reply to the player.
756
757	=cut
758
759	sub cf::player::ext_reply($$$%) {
760	my ($self, $id, %msg) = @_;
761
762	$msg{msgid} = $id;
763
764	$self->send ("ext " . to_json \%msg);
765	}
766
767	=item $player_object->may ("access")	1797	=item $player_object->may ("access")
768		1798
769	Returns wether the given player is authorized to access resource "access"	1799	Returns wether the given player is authorized to access resource "access"
770	(e.g. "command_wizcast").	1800	(e.g. "command_wizcast").
771		1801
…		…
778	(ref $cf::CFG{"may_$access"}	1808	(ref $cf::CFG{"may_$access"}
779	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1809	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
780	: $cf::CFG{"may_$access"})	1810	: $cf::CFG{"may_$access"})
781	}	1811	}
782		1812
783	=cut	1813	=item $player_object->enter_link
784		1814
785	#############################################################################	1815	Freezes the player and moves him/her to a special map (C<{link}>).
		1816
		1817	The player should be reasonably safe there for short amounts of time. You
		1818	I<MUST> call C<leave_link> as soon as possible, though.
		1819
		1820	Will never block.
		1821
		1822	=item $player_object->leave_link ($map, $x, $y)
		1823
		1824	Moves the player out of the special C<{link}> map onto the specified
		1825	map. If the map is not valid (or omitted), the player will be moved back
		1826	to the location he/she was before the call to C<enter_link>, or, if that
		1827	fails, to the emergency map position.
		1828
		1829	Might block.
		1830
		1831	=cut
		1832
		1833	sub link_map {
		1834	unless ($LINK_MAP) {
		1835	$LINK_MAP = cf::map::find "{link}"
		1836	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1837	$LINK_MAP->load;
		1838	}
		1839
		1840	$LINK_MAP
		1841	}
		1842
		1843	sub cf::object::player::enter_link {
		1844	my ($self) = @_;
		1845
		1846	$self->deactivate_recursive;
		1847
		1848	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1849
		1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1851	if $self->map;
		1852
		1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1854	}
		1855
		1856	sub cf::object::player::leave_link {
		1857	my ($self, $map, $x, $y) = @_;
		1858
		1859	my $link_pos = delete $self->{_link_pos};
		1860
		1861	unless ($map) {
		1862	# restore original map position
		1863	($map, $x, $y) = @{ $link_pos || [] };
		1864	$map = cf::map::find $map;
		1865
		1866	unless ($map) {
		1867	($map, $x, $y) = @$EMERGENCY_POSITION;
		1868	$map = cf::map::find $map
		1869	or die "FATAL: cannot load emergency map\n";
		1870	}
		1871	}
		1872
		1873	($x, $y) = (-1, -1)
		1874	unless (defined $x) && (defined $y);
		1875
		1876	# use -1 or undef as default coordinates, not 0, 0
		1877	($x, $y) = ($map->enter_x, $map->enter_y)
		1878	if $x <=0 && $y <= 0;
		1879
		1880	$map->load;
		1881	$map->load_diag;
		1882
		1883	return unless $self->contr->active;
		1884	$self->activate_recursive;
		1885
		1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1887	$self->enter_map ($map, $x, $y);
		1888	}
		1889
		1890	cf::player->attach (
		1891	on_logout => sub {
		1892	my ($pl) = @_;
		1893
		1894	# abort map switching before logout
		1895	if ($pl->ob->{_link_pos}) {
		1896	cf::sync_job {
		1897	$pl->ob->leave_link
		1898	};
		1899	}
		1900	},
		1901	on_login => sub {
		1902	my ($pl) = @_;
		1903
		1904	# try to abort aborted map switching on player login :)
		1905	# should happen only on crashes
		1906	if ($pl->ob->{_link_pos}) {
		1907	$pl->ob->enter_link;
		1908	(async {
		1909	$pl->ob->reply (undef,
		1910	"There was an internal problem at your last logout, "
		1911	. "the server will try to bring you to your intended destination in a second.",
		1912	cf::NDI_RED);
		1913	# we need this sleep as the login has a concurrent enter_exit running
		1914	# and this sleep increases chances of the player not ending up in scorn
		1915	Coro::Timer::sleep 1;
		1916	$pl->ob->leave_link;
		1917	})->prio (2);
		1918	}
		1919	},
		1920	);
		1921
		1922	=item $player_object->goto ($path, $x, $y)
		1923
		1924	=cut
		1925
		1926	sub cf::object::player::goto {
		1927	my ($self, $path, $x, $y) = @_;
		1928
		1929	$self->enter_link;
		1930
		1931	(async {
		1932	my $map = eval {
		1933	my $map = cf::map::find $path;
		1934	$map = $map->customise_for ($self) if $map;
		1935	$map
		1936	} or
		1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1938
		1939	$self->leave_link ($map, $x, $y);
		1940	})->prio (1);
		1941	}
		1942
		1943	=item $player_object->enter_exit ($exit_object)
		1944
		1945	=cut
		1946
		1947	sub parse_random_map_params {
		1948	my ($spec) = @_;
		1949
		1950	my $rmp = { # defaults
		1951	xsize => (cf::rndm 15, 40),
		1952	ysize => (cf::rndm 15, 40),
		1953	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1954	#layout => string,
		1955	};
		1956
		1957	for (split /\n/, $spec) {
		1958	my ($k, $v) = split /\s+/, $_, 2;
		1959
		1960	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1961	}
		1962
		1963	$rmp
		1964	}
		1965
		1966	sub prepare_random_map {
		1967	my ($exit) = @_;
		1968
		1969	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1970
		1971	# all this does is basically replace the /! path by
		1972	# a new random map path (?random/...) with a seed
		1973	# that depends on the exit object
		1974
		1975	my $rmp = parse_random_map_params $exit->msg;
		1976
		1977	if ($exit->map) {
		1978	$rmp->{region} = $exit->region->name;
		1979	$rmp->{origin_map} = $exit->map->path;
		1980	$rmp->{origin_x} = $exit->x;
		1981	$rmp->{origin_y} = $exit->y;
		1982	}
		1983
		1984	$rmp->{random_seed} ||= $exit->random_seed;
		1985
		1986	my $data = cf::to_json $rmp;
		1987	my $md5 = Digest::MD5::md5_hex $data;
		1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1989
		1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1991	aio_write $fh, 0, (length $data), $data, 0;
		1992	undef $fh;
		1993	aio_rename "$meta~", $meta;
		1994
		1995	$exit->slaying ("?random/$md5");
		1996	$exit->msg (undef);
		1997	}
		1998	}
		1999
		2000	sub cf::object::player::enter_exit {
		2001	my ($self, $exit) = @_;
		2002
		2003	return unless $self->type == cf::PLAYER;
		2004
		2005	if ($exit->slaying eq "/!") {
		2006	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2007	# the problem is that $exit might not survive long enough
		2008	# so it needs to be done right now, right here
		2009	cf::sync_job { prepare_random_map $exit };
		2010	}
		2011
		2012	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2013	my $hp = $exit->stats->hp;
		2014	my $sp = $exit->stats->sp;
		2015
		2016	$self->enter_link;
		2017
		2018	(async {
		2019	$self->deactivate_recursive; # just to be sure
		2020	unless (eval {
		2021	$self->goto ($slaying, $hp, $sp);
		2022
		2023	1;
		2024	}) {
		2025	$self->message ("Something went wrong deep within the crossfire server. "
		2026	. "I'll try to bring you back to the map you were before. "
		2027	. "Please report this to the dungeon master!",
		2028	cf::NDI_UNIQUE | cf::NDI_RED);
		2029
		2030	warn "ERROR in enter_exit: $@";
		2031	$self->leave_link;
		2032	}
		2033	})->prio (1);
		2034	}
		2035
		2036	=head3 cf::client
		2037
		2038	=over 4
		2039
		2040	=item $client->send_drawinfo ($text, $flags)
		2041
		2042	Sends a drawinfo packet to the client. Circumvents output buffering so
		2043	should not be used under normal circumstances.
		2044
		2045	=cut
		2046
		2047	sub cf::client::send_drawinfo {
		2048	my ($self, $text, $flags) = @_;
		2049
		2050	utf8::encode $text;
		2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
		2052	}
		2053
		2054	=item $client->ext_event ($type, %msg)
		2055
		2056	Sends an exti event to the client.
		2057
		2058	=cut
		2059
		2060	sub cf::client::ext_event($$%) {
		2061	my ($self, $type, %msg) = @_;
		2062
		2063	$msg{msgtype} = "event_$type";
		2064	$self->send_packet ("ext " . cf::to_json \%msg);
		2065	}
		2066
		2067	=item $success = $client->query ($flags, "text", \&cb)
		2068
		2069	Queues a query to the client, calling the given callback with
		2070	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		2071	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		2072
		2073	Queries can fail, so check the return code. Or don't, as queries will become
		2074	reliable at some point in the future.
		2075
		2076	=cut
		2077
		2078	sub cf::client::query {
		2079	my ($self, $flags, $text, $cb) = @_;
		2080
		2081	return unless $self->state == ST_PLAYING
		2082	|| $self->state == ST_SETUP
		2083	|| $self->state == ST_CUSTOM;
		2084
		2085	$self->state (ST_CUSTOM);
		2086
		2087	utf8::encode $text;
		2088	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		2089
		2090	$self->send_packet ($self->{query_queue}[0][0])
		2091	if @{ $self->{query_queue} } == 1;
		2092	}
		2093
		2094	cf::client->attach (
		2095	on_reply => sub {
		2096	my ($ns, $msg) = @_;
		2097
		2098	# this weird shuffling is so that direct followup queries
		2099	# get handled first
		2100	my $queue = delete $ns->{query_queue}
		2101	or return; # be conservative, not sure how that can happen, but we saw a crash here
		2102
		2103	(shift @$queue)->[1]->($msg);
		2104	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
		2105
		2106	push @{ $ns->{query_queue} }, @$queue;
		2107
		2108	if (@{ $ns->{query_queue} } == @$queue) {
		2109	if (@$queue) {
		2110	$ns->send_packet ($ns->{query_queue}[0][0]);
		2111	} else {
		2112	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		2113	}
		2114	}
		2115	},
		2116	);
		2117
		2118	=item $client->async (\&cb)
		2119
		2120	Create a new coroutine, running the specified callback. The coroutine will
		2121	be automatically cancelled when the client gets destroyed (e.g. on logout,
		2122	or loss of connection).
		2123
		2124	=cut
		2125
		2126	sub cf::client::async {
		2127	my ($self, $cb) = @_;
		2128
		2129	my $coro = &Coro::async ($cb);
		2130
		2131	$coro->on_destroy (sub {
		2132	delete $self->{_coro}{$coro+0};
		2133	});
		2134
		2135	$self->{_coro}{$coro+0} = $coro;
		2136
		2137	$coro
		2138	}
		2139
		2140	cf::client->attach (
		2141	on_destroy => sub {
		2142	my ($ns) = @_;
		2143
		2144	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		2145	},
		2146	);
		2147
		2148	=back
		2149
786		2150
787	=head2 SAFE SCRIPTING	2151	=head2 SAFE SCRIPTING
788		2152
789	Functions that provide a safe environment to compile and execute	2153	Functions that provide a safe environment to compile and execute
790	snippets of perl code without them endangering the safety of the server	2154	snippets of perl code without them endangering the safety of the server
…		…
803		2167
804	# here we export the classes and methods available to script code	2168	# here we export the classes and methods available to script code
805		2169
806	=pod	2170	=pod
807		2171
808	The following fucntions and emthods are available within a safe environment:	2172	The following functions and methods are available within a safe environment:
809		2173
810	cf::object contr pay_amount pay_player map	2174	cf::object contr pay_amount pay_player map
811	cf::object::player player	2175	cf::object::player player
812	cf::player peaceful	2176	cf::player peaceful
813	cf::map trigger	2177	cf::map trigger
…		…
906	The parameter C<$family> should best start with the name of the extension	2270	The parameter C<$family> should best start with the name of the extension
907	using it, it should be unique.	2271	using it, it should be unique.
908		2272
909	=over 4	2273	=over 4
910		2274
911	=item $hashref = cf::db_get $family
912
913	Return a hashref for use by the extension C<$family>, which can be
914	modified. After modifications, you have to call C<cf::db_dirty> or
915	C<cf::db_sync>.
916
917	=item $value = cf::db_get $family => $key	2275	=item $value = cf::db_get $family => $key
918		2276
919	Returns a single value from the database	2277	Returns a single value from the database.
920
921	=item cf::db_put $family => $hashref
922
923	Stores the given family hashref into the database. Updates are delayed, if
924	you want the data to be synced to disk immediately, use C<cf::db_sync>.
925		2278
926	=item cf::db_put $family => $key => $value	2279	=item cf::db_put $family => $key => $value
927		2280
928	Stores the given C<$value> in the family hash. Updates are delayed, if you	2281	Stores the given C<$value> in the family.
929	want the data to be synced to disk immediately, use C<cf::db_sync>.
930
931	=item cf::db_dirty
932
933	Marks the database as dirty, to be updated at a later time.
934
935	=item cf::db_sync
936
937	Immediately write the database to disk I<if it is dirty>.
938		2282
939	=cut	2283	=cut
940		2284
941	our $DB;	2285	our $DB;
942		2286
943	{	2287	sub db_init {
		2288	unless ($DB) {
		2289	$DB = BDB::db_create $DB_ENV;
		2290
		2291	cf::sync_job {
		2292	eval {
		2293	$DB->set_flags (BDB::CHKSUM);
		2294
		2295	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2296	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2297	cf::cleanup "db_open(db): $!" if $!;
		2298	};
		2299	cf::cleanup "db_open(db): $@" if $@;
		2300	};
		2301
944	my $path = cf::localdir . "/database.pst";	2302	my $path = cf::localdir . "/database.pst";
		2303	if (stat $path) {
		2304	cf::sync_job {
		2305	my $pst = Storable::retrieve $path;
945		2306
946	sub db_load() {	2307	cf::db_put (board => data => $pst->{board});
947	warn "loading database $path\n";#d# remove later	2308	cf::db_put (guildrules => data => $pst->{guildrules});
948	$DB = stat $path ? Storable::retrieve $path : { };	2309	cf::db_put (rent => balance => $pst->{rent}{balance});
949	}	2310	BDB::db_env_txn_checkpoint $DB_ENV;
950		2311
951	my $pid;	2312	unlink $path;
952
953	sub db_save() {
954	warn "saving database $path\n";#d# remove later
955	waitpid $pid, 0 if $pid;
956	if (0 == ($pid = fork)) {
957	$DB->{_meta}{version} = 1;
958	Storable::nstore $DB, "$path~";
959	rename "$path~", $path;
960	cf::_exit 0 if defined $pid;
961	}	2313	};
962	}
963
964	my $dirty;
965
966	sub db_sync() {
967	db_save if $dirty;
968	undef $dirty;
969	}
970
971	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
972	db_sync;
973	});
974
975	sub db_dirty() {
976	$dirty = 1;
977	$idle->start;
978	}
979
980	sub db_get($;$) {
981	@_ >= 2
982	? $DB->{$_[0]}{$_[1]}
983	: ($DB->{$_[0]} ||= { })
984	}
985
986	sub db_put($$;$) {
987	if (@_ >= 3) {
988	$DB->{$_[0]}{$_[1]} = $_[2];
989	} else {
990	$DB->{$_[0]} = $_[1];
991	}
992	db_dirty;
993	}
994
995	cf::global->attach (
996	prio => 10000,
997	on_cleanup => sub {
998	db_sync;
999	},	2314	}
1000	);	2315	}
		2316	}
		2317
		2318	sub db_get($$) {
		2319	my $key = "$_[0]/$_[1]";
		2320
		2321	cf::sync_job {
		2322	BDB::db_get $DB, undef, $key, my $data;
		2323
		2324	$! ? ()
		2325	: Compress::LZF::sthaw $data
		2326	}
		2327	}
		2328
		2329	sub db_put($$$) {
		2330	BDB::dbreq_pri 4;
		2331	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1001	}	2332	}
1002		2333
1003	#############################################################################	2334	#############################################################################
1004	# the server's main()	2335	# the server's init and main functions
		2336
		2337	sub load_facedata {
		2338	my $path = sprintf "%s/facedata", cf::datadir;
		2339
		2340	warn "loading facedata from $path\n";
		2341
		2342	my $facedata;
		2343	0 < aio_load $path, $facedata
		2344	or die "$path: $!";
		2345
		2346	$facedata = Coro::Storable::thaw $facedata;
		2347
		2348	$facedata->{version} == 2
		2349	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2350
		2351	{
		2352	my $faces = $facedata->{faceinfo};
		2353
		2354	while (my ($face, $info) = each %$faces) {
		2355	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2356	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2357	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2358	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2359	Coro::cede;
		2360	}
		2361
		2362	while (my ($face, $info) = each %$faces) {
		2363	next unless $info->{smooth};
		2364	my $idx = cf::face::find $face
		2365	or next;
		2366	if (my $smooth = cf::face::find $info->{smooth}) {
		2367	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2368	} else {
		2369	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2370	}
		2371	Coro::cede;
		2372	}
		2373	}
		2374
		2375	{
		2376	my $anims = $facedata->{animinfo};
		2377
		2378	while (my ($anim, $info) = each %$anims) {
		2379	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2380	Coro::cede;
		2381	}
		2382
		2383	cf::anim::invalidate_all; # d'oh
		2384	}
		2385
		2386	1
		2387	}
		2388
		2389	our $archetypes_loaded;
		2390
		2391	sub load_archetypes {
		2392	return 1 if $archetypes_loaded++; # current can only load them once
		2393	load_archetype_file sprintf "%s/archetypes", cf::datadir; # remove when stable
		2394	load_archetype_file sprintf "%s/archetypes", cf::datadir
		2395	}
		2396
		2397	sub load_treasures {
		2398	load_treasure_file sprintf "%s/treasures", cf::datadir
		2399	}
		2400
		2401	sub reload_resources {
		2402	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2403	or die "unable to load regions file\n";
		2404	load_facedata
		2405	or die "unable to load facedata\n";
		2406	load_archetypes
		2407	or die "unable to load archetypes\n";
		2408	load_treasures
		2409	or die "unable to load treasurelists\n";
		2410	}
		2411
		2412	sub init {
		2413	reload_resources;
		2414	}
1005		2415
1006	sub cfg_load {	2416	sub cfg_load {
1007	open my $fh, "<:utf8", cf::confdir . "/config"	2417	open my $fh, "<:utf8", cf::confdir . "/config"
1008	or return;	2418	or return;
1009		2419
1010	local $/;	2420	local $/;
1011	*CFG = YAML::Syck::Load <$fh>;	2421	*CFG = YAML::Syck::Load <$fh>;
		2422
		2423	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2424
		2425	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2426	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2427
		2428	if (exists $CFG{mlockall}) {
		2429	eval {
		2430	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2431	and die "WARNING: m(un)lockall failed: $!\n";
		2432	};
		2433	warn $@ if $@;
		2434	}
1012	}	2435	}
1013		2436
1014	sub main {	2437	sub main {
		2438	# we must not ever block the main coroutine
		2439	local $Coro::idle = sub {
		2440	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2441	(async {
		2442	Event::one_event;
		2443	})->prio (Coro::PRIO_MAX);
		2444	};
		2445
1015	cfg_load;	2446	cfg_load;
1016	db_load;	2447	db_init;
1017	load_extensions;	2448	load_extensions;
		2449
		2450	$TICK_WATCHER->start;
1018	Event::loop;	2451	Event::loop;
1019	}	2452	}
1020		2453
1021	#############################################################################	2454	#############################################################################
1022	# initialisation	2455	# initialisation and cleanup
1023		2456
		2457	# install some emergency cleanup handlers
		2458	BEGIN {
		2459	for my $signal (qw(INT HUP TERM)) {
		2460	Event->signal (
		2461	reentrant => 0,
		2462	data => WF_AUTOCANCEL,
		2463	signal => $signal,
		2464	prio => 0,
		2465	cb => sub {
		2466	cf::cleanup "SIG$signal";
		2467	},
		2468	);
		2469	}
		2470	}
		2471
		2472	sub emergency_save() {
		2473	my $freeze_guard = cf::freeze_mainloop;
		2474
		2475	warn "enter emergency perl save\n";
		2476
		2477	cf::sync_job {
		2478	# use a peculiar iteration method to avoid tripping on perl
		2479	# refcount bugs in for. also avoids problems with players
		2480	# and maps saved/destroyed asynchronously.
		2481	warn "begin emergency player save\n";
		2482	for my $login (keys %cf::PLAYER) {
		2483	my $pl = $cf::PLAYER{$login} or next;
		2484	$pl->valid or next;
		2485	$pl->save;
		2486	}
		2487	warn "end emergency player save\n";
		2488
		2489	warn "begin emergency map save\n";
		2490	for my $path (keys %cf::MAP) {
		2491	my $map = $cf::MAP{$path} or next;
		2492	$map->valid or next;
		2493	$map->save;
		2494	}
		2495	warn "end emergency map save\n";
		2496
		2497	warn "begin emergency database checkpoint\n";
		2498	BDB::db_env_txn_checkpoint $DB_ENV;
		2499	warn "end emergency database checkpoint\n";
		2500	};
		2501
		2502	warn "leave emergency perl save\n";
		2503	}
		2504
		2505	sub post_cleanup {
		2506	my ($make_core) = @_;
		2507
		2508	warn Carp::longmess "post_cleanup backtrace"
		2509	if $make_core;
		2510	}
		2511
1024	sub _perl_reload(&) {	2512	sub reload() {
1025	my ($msg) = @_;	2513	# can/must only be called in main
		2514	if ($Coro::current != $Coro::main) {
		2515	warn "can only reload from main coroutine";
		2516	return;
		2517	}
1026		2518
1027	$msg->("reloading...");	2519	warn "reloading...";
1028		2520
1029	eval {	2521	warn "entering sync_job";
1030	# cancel all watchers	2522
		2523	cf::sync_job {
		2524	cf::write_runtime; # external watchdog should not bark
		2525	cf::emergency_save;
		2526	cf::write_runtime; # external watchdog should not bark
		2527
		2528	warn "syncing database to disk";
		2529	BDB::db_env_txn_checkpoint $DB_ENV;
		2530
		2531	# if anything goes wrong in here, we should simply crash as we already saved
		2532
		2533	warn "cancelling all WF_AUTOCANCEL watchers";
1031	for (Event::all_watchers) {	2534	for (Event::all_watchers) {
1032	$_->cancel if $_->data & WF_AUTOCANCEL;	2535	$_->cancel if $_->data & WF_AUTOCANCEL;
1033	}	2536	}
1034		2537
1035	# unload all extensions	2538	warn "flushing outstanding aio requests";
1036	for (@exts) {	2539	for (;;) {
1037	$msg->("unloading <$_>");	2540	BDB::flush;
1038	unload_extension $_;	2541	IO::AIO::flush;
		2542	Coro::cede;
		2543	last unless IO::AIO::nreqs || BDB::nreqs;
		2544	warn "iterate...";
		2545	}
		2546
		2547	++$RELOAD;
		2548
		2549	warn "cancelling all extension coros";
		2550	$_->cancel for values %EXT_CORO;
		2551	%EXT_CORO = ();
		2552
		2553	warn "removing commands";
		2554	%COMMAND = ();
		2555
		2556	warn "removing ext commands";
		2557	%EXTCMD = ();
		2558
		2559	warn "unloading/nuking all extensions";
		2560	for my $pkg (@EXTS) {
		2561	warn "... unloading $pkg";
		2562
		2563	if (my $cb = $pkg->can ("unload")) {
		2564	eval {
		2565	$cb->($pkg);
		2566	1
		2567	} or warn "$pkg unloaded, but with errors: $@";
1039	}	2568	}
1040		2569
		2570	warn "... nuking $pkg";
		2571	Symbol::delete_package $pkg;
		2572	}
		2573
1041	# unload all modules loaded from $LIBDIR	2574	warn "unloading all perl modules loaded from $LIBDIR";
1042	while (my ($k, $v) = each %INC) {	2575	while (my ($k, $v) = each %INC) {
1043	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2576	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1044		2577
1045	$msg->("removing <$k>");	2578	warn "... unloading $k";
1046	delete $INC{$k};	2579	delete $INC{$k};
1047		2580
1048	$k =~ s/\.pm$//;	2581	$k =~ s/\.pm$//;
1049	$k =~ s/\//::/g;	2582	$k =~ s/\//::/g;
1050		2583
…		…
1053	}	2586	}
1054		2587
1055	Symbol::delete_package $k;	2588	Symbol::delete_package $k;
1056	}	2589	}
1057		2590
1058	# sync database to disk
1059	cf::db_sync;
1060
1061	# get rid of safe::, as good as possible	2591	warn "getting rid of safe::, as good as possible";
1062	Symbol::delete_package "safe::$_"	2592	Symbol::delete_package "safe::$_"
1063	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2593	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1064		2594
1065	# remove register_script_function callbacks
1066	# TODO
1067
1068	# unload cf.pm "a bit"	2595	warn "unloading cf.pm \"a bit\"";
1069	delete $INC{"cf.pm"};	2596	delete $INC{"cf.pm"};
1070		2597
1071	# don't, removes xs symbols, too,	2598	# don't, removes xs symbols, too,
1072	# and global variables created in xs	2599	# and global variables created in xs
1073	#Symbol::delete_package __PACKAGE__;	2600	#Symbol::delete_package __PACKAGE__;
1074		2601
1075	# reload cf.pm	2602	warn "unload completed, starting to reload now";
		2603
1076	$msg->("reloading cf.pm");	2604	warn "reloading cf.pm";
1077	require cf;	2605	require cf;
		2606	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1078		2607
1079	# load config and database again	2608	warn "loading config and database again";
1080	cf::cfg_load;	2609	cf::cfg_load;
1081	cf::db_load;
1082		2610
1083	# load extensions	2611	warn "loading extensions";
1084	$msg->("load extensions");
1085	cf::load_extensions;	2612	cf::load_extensions;
1086		2613
1087	# reattach attachments to objects	2614	warn "reattaching attachments to objects/players";
1088	$msg->("reattach");	2615	_global_reattach; # objects, sockets
1089	_global_reattach;	2616	warn "reattaching attachments to maps";
		2617	reattach $_ for values %MAP;
		2618	warn "reattaching attachments to players";
		2619	reattach $_ for values %PLAYER;
		2620
		2621	warn "loading reloadable resources";
		2622	reload_resources;
		2623
		2624	warn "leaving sync_job";
		2625
		2626	1
		2627	} or do {
		2628	warn $@;
		2629	warn "error while reloading, exiting.";
		2630	exit 1;
1090	};	2631	};
1091	$msg->($@) if $@;
1092		2632
1093	$msg->("reloaded");	2633	warn "reloaded";
1094	};	2634	};
1095		2635
1096	sub perl_reload() {	2636	our $RELOAD_WATCHER; # used only during reload
1097	_perl_reload {
1098	warn $_[0];
1099	print "$_[0]\n";
1100	};
1101	}
1102		2637
1103	register "<global>", __PACKAGE__;
1104
1105	register_command "perl-reload" => sub {	2638	register_command "reload" => sub {
1106	my ($who, $arg) = @_;	2639	my ($who, $arg) = @_;
1107		2640
1108	if ($who->flag (FLAG_WIZ)) {	2641	if ($who->flag (FLAG_WIZ)) {
1109	_perl_reload {	2642	$who->message ("reloading server.");
1110	warn $_[0];	2643
1111	$who->message ($_[0]);	2644	# doing reload synchronously and two reloads happen back-to-back,
		2645	# coro crashes during coro_state_free->destroy here.
		2646
		2647	$RELOAD_WATCHER ||= Event->timer (
		2648	reentrant => 0,
		2649	after => 0,
		2650	data => WF_AUTOCANCEL,
		2651	cb => sub {
		2652	reload;
		2653	undef $RELOAD_WATCHER;
		2654	},
1112	};	2655	);
1113	}	2656	}
1114	};	2657	};
1115		2658
1116	unshift @INC, $LIBDIR;	2659	unshift @INC, $LIBDIR;
1117		2660
		2661	my $bug_warning = 0;
		2662
		2663	our @WAIT_FOR_TICK;
		2664	our @WAIT_FOR_TICK_BEGIN;
		2665
		2666	sub wait_for_tick {
		2667	return unless $TICK_WATCHER->is_active;
		2668	return if $Coro::current == $Coro::main;
		2669
		2670	my $signal = new Coro::Signal;
		2671	push @WAIT_FOR_TICK, $signal;
		2672	$signal->wait;
		2673	}
		2674
		2675	sub wait_for_tick_begin {
		2676	return unless $TICK_WATCHER->is_active;
		2677	return if $Coro::current == $Coro::main;
		2678
		2679	my $signal = new Coro::Signal;
		2680	push @WAIT_FOR_TICK_BEGIN, $signal;
		2681	$signal->wait;
		2682	}
		2683
1118	$TICK_WATCHER = Event->timer (	2684	$TICK_WATCHER = Event->timer (
		2685	reentrant => 0,
		2686	parked => 1,
1119	prio => 0,	2687	prio => 0,
1120	at => $NEXT_TICK || 1,	2688	at => $NEXT_TICK || $TICK,
1121	data => WF_AUTOCANCEL,	2689	data => WF_AUTOCANCEL,
1122	cb => sub {	2690	cb => sub {
		2691	if ($Coro::current != $Coro::main) {
		2692	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2693	unless ++$bug_warning > 10;
		2694	return;
		2695	}
		2696
		2697	$NOW = Event::time;
		2698
1123	cf::server_tick; # one server iteration	2699	cf::server_tick; # one server iteration
1124		2700	$RUNTIME += $TICK;
1125	my $NOW = Event::time;
1126	$NEXT_TICK += $TICK;	2701	$NEXT_TICK += $TICK;
1127		2702
		2703	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2704	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2705	Coro::async_pool {
		2706	write_runtime
		2707	or warn "ERROR: unable to write runtime file: $!";
		2708	};
		2709	}
		2710
		2711	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2712	$sig->send;
		2713	}
		2714	while (my $sig = shift @WAIT_FOR_TICK) {
		2715	$sig->send;
		2716	}
		2717
		2718	# my $AFTER = Event::time;
		2719	# warn $AFTER - $NOW;#d#
		2720
1128	# if we are delayed by four ticks or more, skip them all	2721	# if we are delayed by four ticks or more, skip them all
1129	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2722	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1130		2723
1131	$TICK_WATCHER->at ($NEXT_TICK);	2724	$TICK_WATCHER->at ($NEXT_TICK);
1132	$TICK_WATCHER->start;	2725	$TICK_WATCHER->start;
1133	},	2726	},
1134	);	2727	);
1135		2728
		2729	{
		2730	BDB::max_poll_time $TICK * 0.1;
		2731	$BDB_POLL_WATCHER = Event->io (
		2732	reentrant => 0,
		2733	fd => BDB::poll_fileno,
		2734	poll => 'r',
		2735	prio => 0,
		2736	data => WF_AUTOCANCEL,
		2737	cb => \&BDB::poll_cb,
		2738	);
		2739	BDB::min_parallel 8;
		2740
		2741	BDB::set_sync_prepare {
		2742	my $status;
		2743	my $current = $Coro::current;
		2744	(
		2745	sub {
		2746	$status = $!;
		2747	$current->ready; undef $current;
		2748	},
		2749	sub {
		2750	Coro::schedule while defined $current;
		2751	$! = $status;
		2752	},
		2753	)
		2754	};
		2755
		2756	unless ($DB_ENV) {
		2757	$DB_ENV = BDB::db_env_create;
		2758
		2759	cf::sync_job {
		2760	eval {
		2761	BDB::db_env_open
		2762	$DB_ENV,
		2763	$BDB_ENV_DIR,
		2764	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2765	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2766	0666;
		2767
		2768	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2769
		2770	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2771	$DB_ENV->set_lk_detect;
		2772	};
		2773
		2774	cf::cleanup "db_env_open(db): $@" if $@;
		2775	};
		2776	}
		2777	}
		2778
		2779	{
		2780	IO::AIO::min_parallel 8;
		2781
		2782	undef $Coro::AIO::WATCHER;
1136	IO::AIO::max_poll_time $TICK * 0.2;	2783	IO::AIO::max_poll_time $TICK * 0.1;
1137		2784	$AIO_POLL_WATCHER = Event->io (
1138	Event->io (fd => IO::AIO::poll_fileno,	2785	reentrant => 0,
1139	poll => 'r',
1140	prio => 5,
1141	data => WF_AUTOCANCEL,	2786	data => WF_AUTOCANCEL,
		2787	fd => IO::AIO::poll_fileno,
		2788	poll => 'r',
		2789	prio => 6,
1142	cb => \&IO::AIO::poll_cb);	2790	cb => \&IO::AIO::poll_cb,
		2791	);
		2792	}
		2793
		2794	END { cf::emergency_save }
1143		2795
1144	1	2796	1
1145		2797

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