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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.230 by root, Mon Apr 2 18:04:46 2007 UTC vs.
Revision 1.287 by root, Mon Jun 25 05:43:45 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
9	use Event;	10	use Event;
10	use Opcode;	11	use Opcode;
11	use Safe;	12	use Safe;
12	use Safe::Hole;	13	use Safe::Hole;
13		14
14	use Coro 3.52 ();	15	use Coro 3.61 ();
15	use Coro::State;	16	use Coro::State;
		17	use Coro::Handle;
16	use Coro::Event;	18	use Coro::Event;
17	use Coro::Timer;	19	use Coro::Timer;
18	use Coro::Signal;	20	use Coro::Signal;
19	use Coro::Semaphore;	21	use Coro::Semaphore;
20	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
21		24
22	use BDB ();	25	use BDB ();
23	use Data::Dumper;	26	use Data::Dumper;
24	use Digest::MD5;	27	use Digest::MD5;
25	use Fcntl;	28	use Fcntl;
…		…
28	use Time::HiRes;	31	use Time::HiRes;
29	use Compress::LZF;	32	use Compress::LZF;
30		33
31	# configure various modules to our taste	34	# configure various modules to our taste
32	#	35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
35		39
36	$Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
37		41
…		…
45	our %COMMAND = ();	49	our %COMMAND = ();
46	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
47		51
48	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
49	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXTICMD = ();
50	our %EXT_CORO = (); # coroutines bound to extensions	55	our %EXT_CORO = (); # coroutines bound to extensions
51	our %EXT_MAP = (); # pluggable maps	56	our %EXT_MAP = (); # pluggable maps
52		57
53	our $RELOAD; # number of reloads so far	58	our $RELOAD; # number of reloads so far
54	our @EVENT;	59	our @EVENT;
55	our $LIBDIR = datadir . "/ext";
56		60
57	our $TICK = MAX_TIME * 1e-6;	61	our $CONFDIR = confdir;
		62	our $DATADIR = datadir;
		63	our $LIBDIR = "$DATADIR/ext";
		64	our $PODDIR = "$DATADIR/pod";
		65	our $MAPDIR = "$DATADIR/" . mapdir;
		66	our $LOCALDIR = localdir;
		67	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		68	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		69	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		70	our $RANDOMDIR = "$LOCALDIR/random";
		71	our $BDBDIR = "$LOCALDIR/db";
		72
		73	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
58	our $TICK_WATCHER;	74	our $TICK_WATCHER;
59	our $AIO_POLL_WATCHER;	75	our $AIO_POLL_WATCHER;
60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
61	our $NEXT_TICK;	77	our $NEXT_TICK;
62	our $NOW;	78	our $NOW;
…		…
71	our $RUNTIME;	87	our $RUNTIME;
72		88
73	our %PLAYER; # all users	89	our %PLAYER; # all users
74	our %MAP; # all maps	90	our %MAP; # all maps
75	our $LINK_MAP; # the special {link} map, which is always available	91	our $LINK_MAP; # the special {link} map, which is always available
76	our $RANDOM_MAPS = cf::localdir . "/random";
77	our $BDB_ENV_DIR = cf::localdir . "/db";
78
79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
81		92
82	# used to convert map paths into valid unix filenames by replacing / by ∕	93	# used to convert map paths into valid unix filenames by replacing / by ∕
83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	94	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
84		95
		96	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		97	our $LOADAVG; # same thing, but with alpha-smoothing
		98	our $tick_start; # for load detecting purposes
		99
85	binmode STDOUT;	100	binmode STDOUT;
86	binmode STDERR;	101	binmode STDERR;
87		102
88	# read virtual server time, if available	103	# read virtual server time, if available
89	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	104	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
90	open my $fh, "<", cf::localdir . "/runtime"	105	open my $fh, "<", "$LOCALDIR/runtime"
91	or die "unable to read runtime file: $!";	106	or die "unable to read runtime file: $!";
92	$RUNTIME = <$fh> + 0.;	107	$RUNTIME = <$fh> + 0.;
93	}	108	}
94		109
95	mkdir cf::localdir;	110	mkdir $_
96	mkdir cf::localdir . "/" . cf::playerdir;	111	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
97	mkdir cf::localdir . "/" . cf::tmpdir;
98	mkdir cf::localdir . "/" . cf::uniquedir;
99	mkdir $RANDOM_MAPS;
100	mkdir $BDB_ENV_DIR;
101		112
102	our $EMERGENCY_POSITION;	113	our $EMERGENCY_POSITION;
103		114
104	sub cf::map::normalise;	115	sub cf::map::normalise;
105		116
…		…
116	=item $cf::RUNTIME	127	=item $cf::RUNTIME
117		128
118	The time this server has run, starts at 0 and is increased by $cf::TICK on	129	The time this server has run, starts at 0 and is increased by $cf::TICK on
119	every server tick.	130	every server tick.
120		131
121	=item $cf::LIBDIR	132	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		133	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		134	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
122		135
123	The perl library directory, where extensions and cf-specific modules can	136	Various directories - "/etc", read-only install directory, perl-library
124	be found. It will be added to C<@INC> automatically.	137	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		138	unique-items directory, player file directory, random maps directory and
		139	database environment.
125		140
126	=item $cf::NOW	141	=item $cf::NOW
127		142
128	The time of the last (current) server tick.	143	The time of the last (current) server tick.
129		144
130	=item $cf::TICK	145	=item $cf::TICK
131		146
132	The interval between server ticks, in seconds.	147	The interval between server ticks, in seconds.
		148
		149	=item $cf::LOADAVG
		150
		151	The current CPU load on the server (alpha-smoothed), as a value between 0
		152	(none) and 1 (overloaded), indicating how much time is spent on processing
		153	objects per tick. Healthy values are < 0.5.
		154
		155	=item $cf::LOAD
		156
		157	The raw value load value from the last tick.
133		158
134	=item %cf::CFG	159	=item %cf::CFG
135		160
136	Configuration for the server, loaded from C</etc/crossfire/config>, or	161	Configuration for the server, loaded from C</etc/crossfire/config>, or
137	from wherever your confdir points to.	162	from wherever your confdir points to.
138		163
139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	164	=item cf::wait_for_tick, cf::wait_for_tick_begin
140		165
141	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	166	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
142	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	167	returns directly I<after> the tick processing (and consequently, can only wake one process
143	processing has been done. Call C<< ->wait >> on them to maximise the	168	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
144	window of cpu time available, or simply to synchronise to the server tick.
145		169
146	=back	170	=back
147		171
148	=cut	172	=cut
149		173
150	BEGIN {	174	BEGIN {
151	*CORE::GLOBAL::warn = sub {	175	*CORE::GLOBAL::warn = sub {
152	my $msg = join "", @_;	176	my $msg = join "", @_;
153	utf8::encode $msg;
154		177
155	$msg .= "\n"	178	$msg .= "\n"
156	unless $msg =~ /\n$/;	179	unless $msg =~ /\n$/;
157		180
		181	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		182
		183	utf8::encode $msg;
158	LOG llevError, $msg;	184	LOG llevError, $msg;
159	};	185	};
160	}	186	}
161		187
162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	188	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	189	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
164	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	190	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
165	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	191	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
166	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	192	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		193	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
167	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	194	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
168		195
169	# we bless all objects into (empty) derived classes to force a method lookup	196	# we bless all objects into (empty) derived classes to force a method lookup
170	# within the Safe compartment.	197	# within the Safe compartment.
171	for my $pkg (qw(	198	for my $pkg (qw(
172	cf::global cf::attachable	199	cf::global cf::attachable
…		…
180	}	207	}
181		208
182	$Event::DIED = sub {	209	$Event::DIED = sub {
183	warn "error in event callback: @_";	210	warn "error in event callback: @_";
184	};	211	};
		212
		213	#############################################################################
185		214
186	=head2 UTILITY FUNCTIONS	215	=head2 UTILITY FUNCTIONS
187		216
188	=over 4	217	=over 4
189		218
…		…
208	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	237	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
209	$d	238	$d
210	} || "[unable to dump $_[0]: '$@']";	239	} || "[unable to dump $_[0]: '$@']";
211	}	240	}
212		241
213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	242	use JSON::XS ();
214		243
215	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
216		245
217	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
218		247
219	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
220		249
221	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
		251
		252	=cut
		253
		254	our $json_coder = JSON::XS->new->convert_blessed->utf8;
		255
		256	sub to_json ($) { $json_coder->encode ($_[0]) }
		257	sub from_json ($) { $json_coder->decode ($_[0]) }
222		258
223	=item cf::lock_wait $string	259	=item cf::lock_wait $string
224		260
225	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
226		262
…		…
232	returned.	268	returned.
233		269
234	Lock names should begin with a unique identifier (for example, cf::map::find	270	Lock names should begin with a unique identifier (for example, cf::map::find
235	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
236		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
237	=cut	277	=cut
238		278
239	our %LOCK;	279	our %LOCK;
240		280
241	sub lock_wait($) {	281	sub lock_wait($) {
…		…
258		298
259	Coro::guard {	299	Coro::guard {
260	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
261	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
262	}	302	}
		303	}
		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
263	}	309	}
264		310
265	sub freeze_mainloop {	311	sub freeze_mainloop {
266	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
267		313
…		…
282		328
283	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
284		330
285	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
286		332
287	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
290		337
291	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
294	fast or be very important.	341	fast or be very important.
…		…
297		344
298	sub sync_job(&) {	345	sub sync_job(&) {
299	my ($job) = @_;	346	my ($job) = @_;
300		347
301	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
302	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
304		353
305	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	355	# (but this is cancel-safe)
…		…
317		366
318	while ($busy) {	367	while ($busy) {
319	Coro::cede or Event::one_event;	368	Coro::cede or Event::one_event;
320	}	369	}
321		370
		371	$time = Event::time - $time;
		372
		373	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		374	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		375
		376	$tick_start += $time; # do not account sync jobs to server load
		377
322	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
323	} else {	379	} else {
324	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
325		381
326	$job->()	382	$job->()
…		…
345	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
346		402
347	$coro	403	$coro
348	}	404	}
349		405
350	sub write_runtime {	406	=item fork_call { }, $args
351	my $guard = cf::lock_acquire "write_runtime";
352		407
353	my $runtime = cf::localdir . "/runtime";	408	Executes the given code block with the given arguments in a seperate
		409	process, returning the results. Everything must be serialisable with
		410	Coro::Storable. May, of course, block. Note that the executed sub may
		411	never block itself or use any form of Event handling.
354		412
355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	413	=cut
356	or return;
357		414
358	my $value = $cf::RUNTIME + 90 + 10;	415	sub fork_call(&@) {
359	# 10 is the runtime save interval, for a monotonic clock	416	my ($cb, @args) = @_;
360	# 60 allows for the watchdog to kill the server.
361		417
362	(aio_write $fh, 0, (length $value), $value, 0) <= 0	418	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
363	and return;	419	# or die "socketpair: $!";
		420	pipe my $fh1, my $fh2
		421	or die "pipe: $!";
364		422
365	# always fsync - this file is important	423	if (my $pid = fork) {
366	aio_fsync $fh
367	and return;
368
369	close $fh	424	close $fh2;
370	or return;
371		425
372	aio_rename "$runtime~", $runtime	426	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
373	and return;	427	$res = Coro::Storable::thaw $res;
374		428
		429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		430
		431	die $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	eval {
		439	close $fh1;
		440
		441	my @res = eval { $cb->(@args) };
		442	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		443	};
		444
		445	warn $@ if $@;
		446	_exit 0;
375	1	447	}
		448	}
		449
		450	=item $value = cf::db_get $family => $key
		451
		452	Returns a single value from the environment database.
		453
		454	=item cf::db_put $family => $key => $value
		455
		456	Stores the given C<$value> in the family. It can currently store binary
		457	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		458
		459	=cut
		460
		461	our $DB;
		462
		463	sub db_init {
		464	unless ($DB) {
		465	$DB = BDB::db_create $DB_ENV;
		466
		467	cf::sync_job {
		468	eval {
		469	$DB->set_flags (BDB::CHKSUM);
		470
		471	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		472	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		473	cf::cleanup "db_open(db): $!" if $!;
		474	};
		475	cf::cleanup "db_open(db): $@" if $@;
		476	};
		477	}
		478	}
		479
		480	sub db_get($$) {
		481	my $key = "$_[0]/$_[1]";
		482
		483	cf::sync_job {
		484	BDB::db_get $DB, undef, $key, my $data;
		485
		486	$! ? ()
		487	: $data
		488	}
		489	}
		490
		491	sub db_put($$$) {
		492	BDB::dbreq_pri 4;
		493	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		494	}
		495
		496	=item cf::cache $id => [$paths...], $processversion => $process
		497
		498	Generic caching function that returns the value of the resource $id,
		499	caching and regenerating as required.
		500
		501	This function can block.
		502
		503	=cut
		504
		505	sub cache {
		506	my ($id, $src, $processversion, $process) = @_;
		507
		508	my $meta =
		509	join "\x00",
		510	$processversion,
		511	map {
		512	aio_stat $_
		513	and Carp::croak "$_: $!";
		514
		515	($_, (stat _)[7,9])
		516	} @$src;
		517
		518	my $dbmeta = db_get cache => "$id/meta";
		519	if ($dbmeta ne $meta) {
		520	# changed, we may need to process
		521
		522	my @data;
		523	my $md5;
		524
		525	for (0 .. $#$src) {
		526	0 <= aio_load $src->[$_], $data[$_]
		527	or Carp::croak "$src->[$_]: $!";
		528	}
		529
		530	# if processing is expensive, check
		531	# checksum first
		532	if (1) {
		533	$md5 =
		534	join "\x00",
		535	$processversion,
		536	map {
		537	Coro::cede;
		538	($src->[$_], Digest::MD5::md5_hex $data[$_])
		539	} 0.. $#$src;
		540
		541
		542	my $dbmd5 = db_get cache => "$id/md5";
		543	if ($dbmd5 eq $md5) {
		544	db_put cache => "$id/meta", $meta;
		545
		546	return db_get cache => "$id/data";
		547	}
		548	}
		549
		550	my $t1 = Time::HiRes::time;
		551	my $data = $process->(\@data);
		552	my $t2 = Time::HiRes::time;
		553
		554	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		555
		556	db_put cache => "$id/data", $data;
		557	db_put cache => "$id/md5" , $md5;
		558	db_put cache => "$id/meta", $meta;
		559
		560	return $data;
		561	}
		562
		563	db_get cache => "$id/data"
376	}	564	}
377		565
378	=item cf::datalog type => key => value, ...	566	=item cf::datalog type => key => value, ...
379		567
380	Log a datalog packet of the given type with the given key-value pairs.	568	Log a datalog packet of the given type with the given key-value pairs.
…		…
398	attach callbacks/event handlers (a collection of which is called an "attachment")	586	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	587	to it. All such attachable objects support the following methods.
400		588
401	In the following description, CLASS can be any of C<global>, C<object>	589	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	590	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	591	Crossfire TRT).
404		592
405	=over 4	593	=over 4
406		594
407	=item $attachable->attach ($attachment, key => $value...)	595	=item $attachable->attach ($attachment, key => $value...)
408		596
…		…
571	$registry = $CB_TYPE[$object_type] ||= [];	759	$registry = $CB_TYPE[$object_type] ||= [];
572		760
573	} elsif ($type eq "subtype") {	761	} elsif ($type eq "subtype") {
574	defined $object_type or Carp::croak "subtype specified without type";	762	defined $object_type or Carp::croak "subtype specified without type";
575	my $object_subtype = shift @arg;	763	my $object_subtype = shift @arg;
576	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	764	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
577		765
578	} elsif ($type eq "package") {	766	} elsif ($type eq "package") {
579	my $pkg = shift @arg;	767	my $pkg = shift @arg;
580		768
581	while (my ($name, $id) = each %cb_id) {	769	while (my ($name, $id) = each %cb_id) {
…		…
610	_attach $registry, $klass, @attach;	798	_attach $registry, $klass, @attach;
611	}	799	}
612		800
613	$obj->{$name} = \%arg;	801	$obj->{$name} = \%arg;
614	} else {	802	} else {
615	warn "object uses attachment '$name' that is not available, postponing.\n";	803	warn "object uses attachment '$name' which is not available, postponing.\n";
616	}	804	}
617		805
618	$obj->{_attachment}{$name} = undef;	806	$obj->{_attachment}{$name} = undef;
619	}	807	}
620		808
…		…
622	if (ref $_[0]) {	810	if (ref $_[0]) {
623	_object_attach @_;	811	_object_attach @_;
624	} else {	812	} else {
625	_attach shift->_attach_registry, @_;	813	_attach shift->_attach_registry, @_;
626	}	814	}
		815	_recalc_want;
627	};	816	};
628		817
629	# all those should be optimised	818	# all those should be optimised
630	sub cf::attachable::detach {	819	sub cf::attachable::detach {
631	my ($obj, $name) = @_;	820	my ($obj, $name) = @_;
…		…
634	delete $obj->{_attachment}{$name};	823	delete $obj->{_attachment}{$name};
635	reattach ($obj);	824	reattach ($obj);
636	} else {	825	} else {
637	Carp::croak "cannot, currently, detach class attachments";	826	Carp::croak "cannot, currently, detach class attachments";
638	}	827	}
		828	_recalc_want;
639	};	829	};
640		830
641	sub cf::attachable::attached {	831	sub cf::attachable::attached {
642	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
643		833
…		…
816	or return;	1006	or return;
817	$av = eval { (Storable::thaw $av)->{objs} };	1007	$av = eval { (Storable::thaw $av)->{objs} };
818	}	1008	}
819		1009
820	warn sprintf "loading %s (%d)\n",	1010	warn sprintf "loading %s (%d)\n",
821	$filename, length $data, scalar @{$av || []};#d#	1011	$filename, length $data, scalar @{$av || []};
822	return ($data, $av);	1012	return ($data, $av);
823	}	1013	}
		1014
		1015	=head2 COMMAND CALLBACKS
		1016
		1017	=over 4
		1018
		1019	=cut
824		1020
825	#############################################################################	1021	#############################################################################
826	# command handling &c	1022	# command handling &c
827		1023
828	=item cf::register_command $name => \&callback($ob,$args);	1024	=item cf::register_command $name => \&callback($ob,$args);
…		…
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1037	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1038	}
843		1039
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1040	=item cf::register_extcmd $name => \&callback($pl,$packet);
845		1041
846	Register a callbackf ro execution when the client sends an extcmd packet.	1042	Register a callback for execution when the client sends an (synchronous)
		1043	extcmd packet. Ext commands will be processed in the order they are
		1044	received by the server, like other user commands. The first argument is
		1045	the logged-in player. Ext commands can only be processed after a player
		1046	has logged in successfully.
847		1047
848	If the callback returns something, it is sent back as if reply was being	1048	If the callback returns something, it is sent back as if reply was being
849	called.	1049	called.
850		1050
		1051	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1052
		1053	Register a callback for execution when the client sends an (asynchronous)
		1054	exticmd packet. Exti commands are processed by the server as soon as they
		1055	are received, i.e. out of order w.r.t. other commands. The first argument
		1056	is a client socket. Exti commands can be received anytime, even before
		1057	log-in.
		1058
		1059	If the callback returns something, it is sent back as if reply was being
		1060	called.
		1061
851	=cut	1062	=cut
852		1063
853	sub register_extcmd {	1064	sub register_extcmd {
854	my ($name, $cb) = @_;	1065	my ($name, $cb) = @_;
855		1066
856	$EXTCMD{$name} = $cb;	1067	$EXTCMD{$name} = $cb;
		1068	}
		1069
		1070	sub register_exticmd {
		1071	my ($name, $cb) = @_;
		1072
		1073	$EXTICMD{$name} = $cb;
857	}	1074	}
858		1075
859	cf::player->attach (	1076	cf::player->attach (
860	on_command => sub {	1077	on_command => sub {
861	my ($pl, $name, $params) = @_;	1078	my ($pl, $name, $params) = @_;
…		…
886		1103
887	cf::override;	1104	cf::override;
888	},	1105	},
889	);	1106	);
890		1107
891	sub load_extension {
892	my ($path) = @_;
893
894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
895	my $base = $1;
896	my $pkg = $1;
897	$pkg =~ s/[^[:word:]]/_/g;
898	$pkg = "ext::$pkg";
899
900	warn "... loading '$path' into '$pkg'\n";
901
902	open my $fh, "<:utf8", $path
903	or die "$path: $!";
904
905	my $source =
906	"package $pkg; use strict; use utf8;\n"
907	. "#line 1 \"$path\"\n{\n"
908	. (do { local $/; <$fh> })
909	. "\n};\n1";
910
911	unless (eval $source) {
912	my $msg = $@ ? "$path: $@\n"
913	: "extension disabled.\n";
914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
915	warn $@;
916	warn "mandatory extension failed to load, exiting.\n";
917	exit 1;
918	}
919	die $@;
920	}
921
922	push @EXTS, $pkg;
923	}
924
925	sub load_extensions {	1108	sub load_extensions {
		1109	cf::sync_job {
		1110	my %todo;
		1111
926	for my $ext (<$LIBDIR/*.ext>) {	1112	for my $path (<$LIBDIR/*.ext>) {
927	next unless -r $ext;	1113	next unless -r $path;
928	eval {	1114
929	load_extension $ext;	1115	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1116	my $base = $1;
		1117	my $pkg = $1;
		1118	$pkg =~ s/[^[:word:]]/_/g;
		1119	$pkg = "ext::$pkg";
		1120
		1121	open my $fh, "<:utf8", $path
		1122	or die "$path: $!";
		1123
		1124	my $source = do { local $/; <$fh> };
		1125
		1126	my %ext = (
		1127	path => $path,
		1128	base => $base,
		1129	pkg => $pkg,
		1130	);
		1131
		1132	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1133	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1134
		1135	$ext{source} =
		1136	"package $pkg; use strict; use utf8;\n"
		1137	. "#line 1 \"$path\"\n{\n"
		1138	. $source
		1139	. "\n};\n1";
		1140
		1141	$todo{$base} = \%ext;
		1142	}
		1143
		1144	my %done;
		1145	while (%todo) {
		1146	my $progress;
		1147
		1148	while (my ($k, $v) = each %todo) {
		1149	for (split /,\s*/, $v->{meta}{depends}) {
		1150	goto skip
		1151	unless exists $done{$_};
		1152	}
		1153
		1154	warn "... loading '$k' into '$v->{pkg}'\n";
		1155
		1156	unless (eval $v->{source}) {
		1157	my $msg = $@ ? "$v->{path}: $@\n"
		1158	: "$v->{base}: extension inactive.\n";
		1159
		1160	if (exists $v->{meta}{mandatory}) {
		1161	warn $msg;
		1162	warn "mandatory extension failed to load, exiting.\n";
		1163	exit 1;
		1164	}
		1165
		1166	warn $msg;
		1167	}
		1168
		1169	$done{$k} = delete $todo{$k};
		1170	push @EXTS, $v->{pkg};
		1171	$progress = 1;
930	1	1172	}
931	} or warn "$ext not loaded: $@";	1173
		1174	skip:
		1175	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1176	unless $progress;
		1177	}
932	}	1178	};
933	}	1179	}
934		1180
935	#############################################################################	1181	#############################################################################
936		1182
		1183	=back
		1184
937	=head2 CORE EXTENSIONS	1185	=head2 CORE EXTENSIONS
938		1186
939	Functions and methods that extend core crossfire objects.	1187	Functions and methods that extend core crossfire objects.
940		1188
941	=cut	1189	=cut
…		…
953	Returns the given player object, loading it if necessary (might block).	1201	Returns the given player object, loading it if necessary (might block).
954		1202
955	=cut	1203	=cut
956		1204
957	sub playerdir($) {	1205	sub playerdir($) {
958	cf::localdir	1206	"$PLAYERDIR/"
959	. "/"
960	. cf::playerdir
961	. "/"
962	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1207	. (ref $_[0] ? $_[0]->ob->name : $_[0])
963	}	1208	}
964		1209
965	sub path($) {	1210	sub path($) {
966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1211	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
967		1212
968	(playerdir $login) . "/$login.pl"	1213	(playerdir $login) . "/playerdata"
969	}	1214	}
970		1215
971	sub find_active($) {	1216	sub find_active($) {
972	$cf::PLAYER{$_[0]}	1217	$cf::PLAYER{$_[0]}
973	and $cf::PLAYER{$_[0]}->active	1218	and $cf::PLAYER{$_[0]}->active
…		…
986	my $login = $_[0];	1231	my $login = $_[0];
987		1232
988	my $guard = cf::lock_acquire "user_find:$login";	1233	my $guard = cf::lock_acquire "user_find:$login";
989		1234
990	$cf::PLAYER{$_[0]} || do {	1235	$cf::PLAYER{$_[0]} || do {
		1236	# rename old playerfiles to new ones
		1237	#TODO: remove when no longer required
		1238	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1239	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1240	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1241	aio_unlink +(playerdir $login) . "/$login.pl";
		1242
991	my $pl = load_pl path $login	1243	my $pl = load_pl path $login
992	or return;	1244	or return;
993	$cf::PLAYER{$login} = $pl	1245	$cf::PLAYER{$login} = $pl
994	}	1246	}
995	}	1247	}
…		…
1079	while and may block, so not sync_job-capable, ever.	1331	while and may block, so not sync_job-capable, ever.
1080		1332
1081	=cut	1333	=cut
1082		1334
1083	sub list_logins {	1335	sub list_logins {
1084	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1336	my $dirs = aio_readdir $PLAYERDIR
1085	or return [];	1337	or return [];
1086		1338
1087	my @logins;	1339	my @logins;
1088		1340
1089	for my $login (@$dirs) {	1341	for my $login (@$dirs) {
…		…
1124	}	1376	}
1125		1377
1126	\@paths	1378	\@paths
1127	}	1379	}
1128		1380
		1381	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1382
		1383	Expand crossfire pod fragments into protocol xml.
		1384
		1385	=cut
		1386
		1387	sub expand_cfpod {
		1388	((my $self), (local $_)) = @_;
		1389
		1390	# escape & and <
		1391	s/&/&amp;/g;
		1392	s/(?<![BIUGH])</&lt;/g;
		1393
		1394	# this is buggy, it needs to properly take care of nested <'s
		1395
		1396	1 while
		1397	# replace B<>, I<>, U<> etc.
		1398	s/B<([^\>]*)>/<b>$1<\/b>/
		1399	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1400	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1401	# replace G<male|female> tags
		1402	|| s{G<([^>|]*)\|([^>]*)>}{
		1403	$self->gender ? $2 : $1
		1404	}ge
		1405	# replace H<hint text>
		1406	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1407
		1408	# create single paragraphs (very hackish)
		1409	s/(?<=\S)\n(?=\w)/ /g;
		1410
		1411	$_
		1412	}
		1413
1129	=item $player->ext_reply ($msgid, $msgtype, %msg)	1414	=item $player->ext_reply ($msgid, %msg)
1130		1415
1131	Sends an ext reply to the player.	1416	Sends an ext reply to the player.
1132		1417
1133	=cut	1418	=cut
1134		1419
1135	sub ext_reply($$$%) {	1420	sub ext_reply($$%) {
1136	my ($self, $id, %msg) = @_;	1421	my ($self, $id, %msg) = @_;
1137		1422
1138	$msg{msgid} = $id;	1423	$msg{msgid} = $id;
1139
1140	$self->send ("ext " . cf::to_json \%msg);	1424	$self->send ("ext " . cf::to_json \%msg);
1141	}	1425	}
1142		1426
1143	package cf;	1427	=item $player->ext_event ($type, %msg)
		1428
		1429	Sends an ext event to the client.
		1430
		1431	=cut
		1432
		1433	sub ext_event($$%) {
		1434	my ($self, $type, %msg) = @_;
		1435
		1436	$self->ns->ext_event ($type, %msg);
		1437	}
		1438
		1439	=head3 cf::region
		1440
		1441	=over 4
		1442
		1443	=cut
		1444
		1445	package cf::region;
		1446
		1447	=item cf::region::find_by_path $path
		1448
		1449	Tries to decuce the likely region for a map knowing only its path.
		1450
		1451	=cut
		1452
		1453	sub find_by_path($) {
		1454	my ($path) = @_;
		1455
		1456	my ($match, $specificity);
		1457
		1458	for my $region (list) {
		1459	if ($region->match && $path =~ $region->match) {
		1460	($match, $specificity) = ($region, $region->specificity)
		1461	if $region->specificity > $specificity;
		1462	}
		1463	}
		1464
		1465	$match
		1466	}
1144		1467
1145	=back	1468	=back
1146
1147		1469
1148	=head3 cf::map	1470	=head3 cf::map
1149		1471
1150	=over 4	1472	=over 4
1151		1473
…		…
1206	my ($self, $merge) = @_;	1528	my ($self, $merge) = @_;
1207		1529
1208	# we have to keep some variables in memory intact	1530	# we have to keep some variables in memory intact
1209	local $self->{path};	1531	local $self->{path};
1210	local $self->{load_path};	1532	local $self->{load_path};
1211	local $self->{deny_save};
1212	local $self->{deny_reset};
1213		1533
1214	$self->SUPER::thawer_merge ($merge);	1534	$self->SUPER::thawer_merge ($merge);
1215	}	1535	}
1216		1536
1217	sub normalise {	1537	sub normalise {
…		…
1289		1609
1290	# the original (read-only) location	1610	# the original (read-only) location
1291	sub load_path {	1611	sub load_path {
1292	my ($self) = @_;	1612	my ($self) = @_;
1293		1613
1294	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1614	"$MAPDIR/$self->{path}.map"
1295	}	1615	}
1296		1616
1297	# the temporary/swap location	1617	# the temporary/swap location
1298	sub save_path {	1618	sub save_path {
1299	my ($self) = @_;	1619	my ($self) = @_;
1300		1620
1301	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1621	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1302	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1622	"$TMPDIR/$path.map"
1303	}	1623	}
1304		1624
1305	# the unique path, undef == no special unique path	1625	# the unique path, undef == no special unique path
1306	sub uniq_path {	1626	sub uniq_path {
1307	my ($self) = @_;	1627	my ($self) = @_;
1308		1628
1309	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1629	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1310	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1630	"$UNIQUEDIR/$path"
1311	}	1631	}
1312		1632
1313	# and all this just because we cannot iterate over	1633	# and all this just because we cannot iterate over
1314	# all maps in C++...	1634	# all maps in C++...
1315	sub change_all_map_light {	1635	sub change_all_map_light {
1316	my ($change) = @_;	1636	my ($change) = @_;
1317		1637
1318	$_->change_map_light ($change)	1638	$_->change_map_light ($change)
1319	for grep $_->outdoor, values %cf::MAP;	1639	for grep $_->outdoor, values %cf::MAP;
		1640	}
		1641
		1642	sub decay_objects {
		1643	my ($self) = @_;
		1644
		1645	return if $self->{deny_reset};
		1646
		1647	$self->do_decay_objects;
1320	}	1648	}
1321		1649
1322	sub unlink_save {	1650	sub unlink_save {
1323	my ($self) = @_;	1651	my ($self) = @_;
1324		1652
…		…
1382	$self->load_header_orig	1710	$self->load_header_orig
1383	or return;	1711	or return;
1384	$self->prepare_orig;	1712	$self->prepare_orig;
1385	}	1713	}
1386		1714
		1715	$self->{deny_reset} = 1
		1716	if $self->no_reset;
		1717
		1718	$self->default_region (cf::region::find_by_path $self->{path})
		1719	unless $self->default_region;
		1720
1387	1	1721	1
1388	}	1722	}
1389		1723
1390	sub find;	1724	sub find;
1391	sub find {	1725	sub find {
…		…
1403	$map->{last_save} = $cf::RUNTIME;	1737	$map->{last_save} = $cf::RUNTIME;
1404		1738
1405	$map->load_header	1739	$map->load_header
1406	or return;	1740	or return;
1407		1741
1408	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1742	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1409	# doing this can freeze the server in a sync job, obviously	1743	# doing this can freeze the server in a sync job, obviously
1410	#$cf::WAIT_FOR_TICK->wait;	1744	#$cf::WAIT_FOR_TICK->wait;
1411	$map->reset;	1745	$map->reset;
1412	undef $guard;	1746	undef $guard;
1413	return find $path;	1747	return find $path;
…		…
1424	my ($self) = @_;	1758	my ($self) = @_;
1425		1759
1426	local $self->{deny_reset} = 1; # loading can take a long time	1760	local $self->{deny_reset} = 1; # loading can take a long time
1427		1761
1428	my $path = $self->{path};	1762	my $path = $self->{path};
		1763
		1764	{
1429	my $guard = cf::lock_acquire "map_load:$path";	1765	my $guard = cf::lock_acquire "map_load:$path";
1430		1766
1431	return if $self->in_memory != cf::MAP_SWAPPED;	1767	return if $self->in_memory != cf::MAP_SWAPPED;
1432		1768
1433	$self->in_memory (cf::MAP_LOADING);	1769	$self->in_memory (cf::MAP_LOADING);
1434		1770
1435	$self->alloc;	1771	$self->alloc;
1436		1772
1437	$self->pre_load;	1773	$self->pre_load;
1438
1439	$self->_load_objects ($self->{load_path}, 1)
1440	or return;
1441
1442	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1443	if delete $self->{load_original};
1444
1445	if (my $uniq = $self->uniq_path) {
1446	utf8::encode $uniq;
1447	if (aio_open $uniq, O_RDONLY, 0) {
1448	$self->clear_unique_items;
1449	$self->_load_objects ($uniq, 0);
1450	}
1451	}
1452
1453	Coro::cede;
1454
1455	# now do the right thing for maps
1456	$self->link_multipart_objects;
1457
1458	unless ($self->{deny_activate}) {
1459	$self->decay_objects;
1460	$self->fix_auto_apply;
1461	$self->update_buttons;
1462	Coro::cede;	1774	Coro::cede;
1463	$self->set_darkness_map;	1775
		1776	$self->_load_objects ($self->{load_path}, 1)
		1777	or return;
		1778
		1779	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1780	if delete $self->{load_original};
		1781
		1782	if (my $uniq = $self->uniq_path) {
		1783	utf8::encode $uniq;
		1784	if (aio_open $uniq, O_RDONLY, 0) {
		1785	$self->clear_unique_items;
		1786	$self->_load_objects ($uniq, 0);
		1787	}
		1788	}
		1789
		1790	Coro::cede;
		1791	# now do the right thing for maps
		1792	$self->link_multipart_objects;
1464	$self->difficulty ($self->estimate_difficulty)	1793	$self->difficulty ($self->estimate_difficulty)
1465	unless $self->difficulty;	1794	unless $self->difficulty;
1466	Coro::cede;	1795	Coro::cede;
		1796
		1797	unless ($self->{deny_activate}) {
		1798	$self->decay_objects;
		1799	$self->fix_auto_apply;
		1800	$self->update_buttons;
		1801	Coro::cede;
		1802	$self->set_darkness_map;
		1803	Coro::cede;
1467	$self->activate;	1804	$self->activate;
		1805	}
		1806
		1807	$self->in_memory (cf::MAP_IN_MEMORY);
1468	}	1808	}
1469		1809
1470	$self->post_load;	1810	$self->post_load;
1471
1472	$self->in_memory (cf::MAP_IN_MEMORY);
1473	}	1811	}
1474		1812
1475	sub customise_for {	1813	sub customise_for {
1476	my ($self, $ob) = @_;	1814	my ($self, $ob) = @_;
1477		1815
1478	return find "~" . $ob->name . "/" . $self->{path}	1816	return find "~" . $ob->name . "/" . $self->{path}
1479	if $self->per_player;	1817	if $self->per_player;
		1818
		1819	# return find "?party/" . $ob->name . "/" . $self->{path}
		1820	# if $self->per_party;
1480		1821
1481	$self	1822	$self
1482	}	1823	}
1483		1824
1484	# find and load all maps in the 3x3 area around a map	1825	# find and load all maps in the 3x3 area around a map
…		…
1595		1936
1596	sub reset_at {	1937	sub reset_at {
1597	my ($self) = @_;	1938	my ($self) = @_;
1598		1939
1599	# TODO: safety, remove and allow resettable per-player maps	1940	# TODO: safety, remove and allow resettable per-player maps
1600	return 1e99 if $self->isa ("ext::map_per_player");#d#
1601	return 1e99 if $self->{deny_reset};	1941	return 1e99 if $self->{deny_reset};
1602		1942
1603	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1943	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1604	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1944	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1605		1945
…		…
1616	my ($self) = @_;	1956	my ($self) = @_;
1617		1957
1618	my $lock = cf::lock_acquire "map_data:$self->{path}";	1958	my $lock = cf::lock_acquire "map_data:$self->{path}";
1619		1959
1620	return if $self->players;	1960	return if $self->players;
1621	return if $self->isa ("ext::map_per_player");#d#
1622		1961
1623	warn "resetting map ", $self->path;#d#	1962	warn "resetting map ", $self->path;
1624		1963
1625	$self->in_memory (cf::MAP_SWAPPED);	1964	$self->in_memory (cf::MAP_SWAPPED);
1626		1965
1627	# need to save uniques path	1966	# need to save uniques path
1628	unless ($self->{deny_save}) {	1967	unless ($self->{deny_save}) {
…		…
1660	$cf::MAP{$self->path} = $self;	1999	$cf::MAP{$self->path} = $self;
1661		2000
1662	$self->reset; # polite request, might not happen	2001	$self->reset; # polite request, might not happen
1663	}	2002	}
1664		2003
		2004	=item $maps = cf::map::tmp_maps
		2005
		2006	Returns an arrayref with all map paths of currently instantiated and saved
		2007	maps. May block.
		2008
		2009	=cut
		2010
		2011	sub tmp_maps() {
		2012	[
		2013	map {
		2014	utf8::decode $_;
		2015	/\.map$/
		2016	? normalise $_
		2017	: ()
		2018	} @{ aio_readdir $TMPDIR or [] }
		2019	]
		2020	}
		2021
		2022	=item $maps = cf::map::random_maps
		2023
		2024	Returns an arrayref with all map paths of currently instantiated and saved
		2025	random maps. May block.
		2026
		2027	=cut
		2028
		2029	sub random_maps() {
		2030	[
		2031	map {
		2032	utf8::decode $_;
		2033	/\.map$/
		2034	? normalise "?random/$_"
		2035	: ()
		2036	} @{ aio_readdir $RANDOMDIR or [] }
		2037	]
		2038	}
		2039
1665	=item cf::map::unique_maps	2040	=item cf::map::unique_maps
1666		2041
1667	Returns an arrayref of paths of all shared maps that have	2042	Returns an arrayref of paths of all shared maps that have
1668	instantiated unique items. May block.	2043	instantiated unique items. May block.
1669		2044
1670	=cut	2045	=cut
1671		2046
1672	sub unique_maps() {	2047	sub unique_maps() {
1673	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2048	[
1674	or return;	2049	map {
1675
1676	my @paths;
1677
1678	for (@$files) {
1679	utf8::decode $_;	2050	utf8::decode $_;
1680	next if /\.pst$/;	2051	/\.map$/
1681	next unless /^$PATH_SEP/o;	2052	? normalise $_
1682		2053	: ()
1683	push @paths, cf::map::normalise $_;	2054	} @{ aio_readdir $UNIQUEDIR or [] }
1684	}	2055	]
1685
1686	\@paths
1687	}	2056	}
1688		2057
1689	package cf;	2058	package cf;
1690		2059
1691	=back	2060	=back
…		…
1737		2106
1738	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2107	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1739		2108
1740	if ($self->{record_replies}) {	2109	if ($self->{record_replies}) {
1741	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2110	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2111
1742	} else {	2112	} else {
		2113	my $pl = $self->contr;
		2114
		2115	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2116	my $diag = $pl->{npc_dialog};
		2117	$diag->{pl}->ext_reply (
		2118	$diag->{id},
		2119	msgtype => "reply",
		2120	msg => $diag->{pl}->expand_cfpod ($msg),
		2121	add_topics => []
		2122	);
		2123
		2124	} else {
1743	$msg = $npc->name . " says: $msg" if $npc;	2125	$msg = $npc->name . " says: $msg" if $npc;
1744	$self->message ($msg, $flags);	2126	$self->message ($msg, $flags);
		2127	}
1745	}	2128	}
1746	}	2129	}
1747		2130
1748	=item $player_object->may ("access")	2131	=item $player_object->may ("access")
1749		2132
…		…
1797	$self->deactivate_recursive;	2180	$self->deactivate_recursive;
1798		2181
1799	return if UNIVERSAL::isa $self->map, "ext::map_link";	2182	return if UNIVERSAL::isa $self->map, "ext::map_link";
1800		2183
1801	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2184	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1802	if $self->map;	2185	if $self->map && $self->map->{path} ne "{link}";
1803		2186
1804	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2187	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1805	}	2188	}
1806		2189
1807	sub cf::object::player::leave_link {	2190	sub cf::object::player::leave_link {
1808	my ($self, $map, $x, $y) = @_;	2191	my ($self, $map, $x, $y) = @_;
		2192
		2193	return unless $self->contr->active;
1809		2194
1810	my $link_pos = delete $self->{_link_pos};	2195	my $link_pos = delete $self->{_link_pos};
1811		2196
1812	unless ($map) {	2197	unless ($map) {
1813	# restore original map position	2198	# restore original map position
…		…
1836		2221
1837	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2222	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1838	$self->enter_map ($map, $x, $y);	2223	$self->enter_map ($map, $x, $y);
1839	}	2224	}
1840		2225
1841	cf::player->attach (
1842	on_logout => sub {
1843	my ($pl) = @_;
1844
1845	# abort map switching before logout
1846	if ($pl->ob->{_link_pos}) {
1847	cf::sync_job {
1848	$pl->ob->leave_link
1849	};
1850	}
1851	},
1852	on_login => sub {
1853	my ($pl) = @_;
1854
1855	# try to abort aborted map switching on player login :)
1856	# should happen only on crashes
1857	if ($pl->ob->{_link_pos}) {
1858	$pl->ob->enter_link;
1859	(async {
1860	$pl->ob->reply (undef,
1861	"There was an internal problem at your last logout, "
1862	. "the server will try to bring you to your intended destination in a second.",
1863	cf::NDI_RED);
1864	# we need this sleep as the login has a concurrent enter_exit running
1865	# and this sleep increases chances of the player not ending up in scorn
1866	Coro::Timer::sleep 1;
1867	$pl->ob->leave_link;
1868	})->prio (2);
1869	}
1870	},
1871	);
1872
1873	=item $player_object->goto ($path, $x, $y)	2226	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1874		2227
		2228	Moves the player to the given map-path and coordinates by first freezing
		2229	her, loading and preparing them map, calling the provided $check callback
		2230	that has to return the map if sucecssful, and then unfreezes the player on
		2231	the new (success) or old (failed) map position.
		2232
1875	=cut	2233	=cut
		2234
		2235	our $GOTOGEN;
1876		2236
1877	sub cf::object::player::goto {	2237	sub cf::object::player::goto {
1878	my ($self, $path, $x, $y) = @_;	2238	my ($self, $path, $x, $y, $check) = @_;
		2239
		2240	# do generation counting so two concurrent goto's will be executed in-order
		2241	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1879		2242
1880	$self->enter_link;	2243	$self->enter_link;
1881		2244
1882	(async {	2245	(async {
1883	my $map = eval {	2246	my $map = eval {
1884	my $map = cf::map::find $path;	2247	my $map = cf::map::find $path;
		2248
		2249	if ($map) {
1885	$map = $map->customise_for ($self) if $map;	2250	$map = $map->customise_for ($self);
		2251	$map = $check->($map) if $check && $map;
		2252	} else {
		2253	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2254	}
		2255
1886	$map	2256	$map
		2257	};
		2258
		2259	if ($@) {
		2260	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2261	LOG llevError | logBacktrace, Carp::longmess $@;
1887	} or	2262	}
1888	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1889		2263
		2264	if ($gen == $self->{_goto_generation}) {
		2265	delete $self->{_goto_generation};
1890	$self->leave_link ($map, $x, $y);	2266	$self->leave_link ($map, $x, $y);
		2267	}
1891	})->prio (1);	2268	})->prio (1);
1892	}	2269	}
1893		2270
1894	=item $player_object->enter_exit ($exit_object)	2271	=item $player_object->enter_exit ($exit_object)
1895		2272
…		…
1934		2311
1935	$rmp->{random_seed} ||= $exit->random_seed;	2312	$rmp->{random_seed} ||= $exit->random_seed;
1936		2313
1937	my $data = cf::to_json $rmp;	2314	my $data = cf::to_json $rmp;
1938	my $md5 = Digest::MD5::md5_hex $data;	2315	my $md5 = Digest::MD5::md5_hex $data;
1939	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2316	my $meta = "$RANDOMDIR/$md5.meta";
1940		2317
1941	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2318	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1942	aio_write $fh, 0, (length $data), $data, 0;	2319	aio_write $fh, 0, (length $data), $data, 0;
1943	undef $fh;	2320	undef $fh;
1944	aio_rename "$meta~", $meta;	2321	aio_rename "$meta~", $meta;
…		…
1953		2330
1954	return unless $self->type == cf::PLAYER;	2331	return unless $self->type == cf::PLAYER;
1955		2332
1956	if ($exit->slaying eq "/!") {	2333	if ($exit->slaying eq "/!") {
1957	#TODO: this should de-fi-ni-te-ly not be a sync-job	2334	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2335	# the problem is that $exit might not survive long enough
		2336	# so it needs to be done right now, right here
1958	cf::sync_job { prepare_random_map $exit };	2337	cf::sync_job { prepare_random_map $exit };
1959	}	2338	}
1960		2339
1961	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2340	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1962	my $hp = $exit->stats->hp;	2341	my $hp = $exit->stats->hp;
…		…
1970	$self->goto ($slaying, $hp, $sp);	2349	$self->goto ($slaying, $hp, $sp);
1971		2350
1972	1;	2351	1;
1973	}) {	2352	}) {
1974	$self->message ("Something went wrong deep within the crossfire server. "	2353	$self->message ("Something went wrong deep within the crossfire server. "
1975	. "I'll try to bring you back to the map you were before. "	2354	. "I'll try to bring you back to the map you were before. "
1976	. "Please report this to the dungeon master!",	2355	. "Please report this to the dungeon master!",
1977	cf::NDI_UNIQUE | cf::NDI_RED);	2356	cf::NDI_UNIQUE | cf::NDI_RED);
1978		2357
1979	warn "ERROR in enter_exit: $@";	2358	warn "ERROR in enter_exit: $@";
1980	$self->leave_link;	2359	$self->leave_link;
1981	}	2360	}
1982	})->prio (1);	2361	})->prio (1);
…		…
1998		2377
1999	utf8::encode $text;	2378	utf8::encode $text;
2000	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2379	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2001	}	2380	}
2002		2381
		2382	=item $client->send_msg ($color, $type, $msg, [extra...])
		2383
		2384	Send a drawinfo or msg packet to the client, formatting the msg for the
		2385	client if neccessary. C<$type> should be a string identifying the type of
		2386	the message, with C<log> being the default. If C<$color> is negative, suppress
		2387	the message unless the client supports the msg packet.
		2388
		2389	=cut
		2390
		2391	sub cf::client::send_msg {
		2392	my ($self, $color, $type, $msg, @extra) = @_;
		2393
		2394	$msg = $self->pl->expand_cfpod ($msg);
		2395
		2396	if ($self->can_msg) {
		2397	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2398	} else {
		2399	# replace some tags by gcfclient-compatible ones
		2400	for ($msg) {
		2401	1 while
		2402	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2403	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2404	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2405	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2406	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2407	}
		2408
		2409	if ($color >= 0) {
		2410	if (0 && $msg =~ /\[/) {
		2411	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2412	} else {
		2413	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2414	$self->send_packet ("drawinfo $color $msg")
		2415	}
		2416	}
		2417	}
		2418	}
		2419
		2420	=item $client->ext_event ($type, %msg)
		2421
		2422	Sends an ext event to the client.
		2423
		2424	=cut
		2425
		2426	sub cf::client::ext_event($$%) {
		2427	my ($self, $type, %msg) = @_;
		2428
		2429	$msg{msgtype} = "event_$type";
		2430	$self->send_packet ("ext " . cf::to_json \%msg);
		2431	}
2003		2432
2004	=item $success = $client->query ($flags, "text", \&cb)	2433	=item $success = $client->query ($flags, "text", \&cb)
2005		2434
2006	Queues a query to the client, calling the given callback with	2435	Queues a query to the client, calling the given callback with
2007	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2436	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2008	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2437	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2009		2438
2010	Queries can fail, so check the return code. Or don't, as queries will become	2439	Queries can fail, so check the return code. Or don't, as queries will
2011	reliable at some point in the future.	2440	become reliable at some point in the future.
2012		2441
2013	=cut	2442	=cut
2014		2443
2015	sub cf::client::query {	2444	sub cf::client::query {
2016	my ($self, $flags, $text, $cb) = @_;	2445	my ($self, $flags, $text, $cb) = @_;
…		…
2024	utf8::encode $text;	2453	utf8::encode $text;
2025	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2454	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2026		2455
2027	$self->send_packet ($self->{query_queue}[0][0])	2456	$self->send_packet ($self->{query_queue}[0][0])
2028	if @{ $self->{query_queue} } == 1;	2457	if @{ $self->{query_queue} } == 1;
		2458
		2459	1
2029	}	2460	}
2030		2461
2031	cf::client->attach (	2462	cf::client->attach (
2032	on_reply => sub {	2463	on_reply => sub {
2033	my ($ns, $msg) = @_;	2464	my ($ns, $msg) = @_;
…		…
2047	$ns->send_packet ($ns->{query_queue}[0][0]);	2478	$ns->send_packet ($ns->{query_queue}[0][0]);
2048	} else {	2479	} else {
2049	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2480	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2050	}	2481	}
2051	}	2482	}
		2483	},
		2484	on_exticmd => sub {
		2485	my ($ns, $buf) = @_;
		2486
		2487	my $msg = eval { from_json $buf };
		2488
		2489	if (ref $msg) {
		2490	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2491	if (my %reply = $cb->($ns, $msg)) {
		2492	$reply{msgid} = $msg->{msgid};
		2493	$ns->send ("ext " . cf::to_json \%reply);
		2494	}
		2495	}
		2496	} else {
		2497	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2498	}
		2499
		2500	cf::override;
2052	},	2501	},
2053	);	2502	);
2054		2503
2055	=item $client->async (\&cb)	2504	=item $client->async (\&cb)
2056		2505
…		…
2195	=back	2644	=back
2196		2645
2197	=cut	2646	=cut
2198		2647
2199	#############################################################################	2648	#############################################################################
2200
2201	=head2 EXTENSION DATABASE SUPPORT
2202
2203	Crossfire maintains a very simple database for extension use. It can
2204	currently store anything that can be serialised using Storable, which
2205	excludes objects.
2206
2207	The parameter C<$family> should best start with the name of the extension
2208	using it, it should be unique.
2209
2210	=over 4
2211
2212	=item $value = cf::db_get $family => $key
2213
2214	Returns a single value from the database.
2215
2216	=item cf::db_put $family => $key => $value
2217
2218	Stores the given C<$value> in the family.
2219
2220	=cut
2221
2222	our $DB;
2223
2224	sub db_init {
2225	unless ($DB) {
2226	$DB = BDB::db_create $DB_ENV;
2227
2228	cf::sync_job {
2229	eval {
2230	$DB->set_flags (BDB::CHKSUM);
2231
2232	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2233	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2234	cf::cleanup "db_open(db): $!" if $!;
2235	};
2236	cf::cleanup "db_open(db): $@" if $@;
2237	};
2238
2239	my $path = cf::localdir . "/database.pst";
2240	if (stat $path) {
2241	cf::sync_job {
2242	my $pst = Storable::retrieve $path;
2243
2244	cf::db_put (board => data => $pst->{board});
2245	cf::db_put (guildrules => data => $pst->{guildrules});
2246	cf::db_put (rent => balance => $pst->{rent}{balance});
2247	BDB::db_env_txn_checkpoint $DB_ENV;
2248
2249	unlink $path;
2250	};
2251	}
2252	}
2253	}
2254
2255	sub db_get($$) {
2256	my $key = "$_[0]/$_[1]";
2257
2258	cf::sync_job {
2259	BDB::db_get $DB, undef, $key, my $data;
2260
2261	$! ? ()
2262	: Compress::LZF::sthaw $data
2263	}
2264	}
2265
2266	sub db_put($$$) {
2267	BDB::dbreq_pri 4;
2268	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2269	}
2270
2271	#############################################################################
2272	# the server's init and main functions	2649	# the server's init and main functions
2273		2650
2274	sub load_facedata {	2651	sub load_facedata($) {
2275	my $path = sprintf "%s/facedata", cf::datadir;	2652	my ($path) = @_;
2276		2653
2277	warn "loading facedata from $path\n";	2654	warn "loading facedata from $path\n";
2278		2655
2279	my $faces;	2656	my $facedata;
2280	0 < aio_load $path, $faces	2657	0 < aio_load $path, $facedata
2281	or die "$path: $!";	2658	or die "$path: $!";
2282		2659
2283	Coro::cede;
2284	$faces = Storable::thaw $faces;	2660	$facedata = Coro::Storable::thaw $facedata;
2285	Coro::cede;
2286		2661
2287	my $meta = delete $faces->{""};
2288	$meta->{version} == 1	2662	$facedata->{version} == 2
2289	or cf::cleanup "$path: version mismatch, cannot proceed.";	2663	or cf::cleanup "$path: version mismatch, cannot proceed.";
2290		2664
		2665	{
		2666	my $faces = $facedata->{faceinfo};
		2667
2291	while (my ($face, $info) = each %$faces) {	2668	while (my ($face, $info) = each %$faces) {
2292	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2669	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2293	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2670	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2294	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2671	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2295	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2672	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2296	Coro::cede;	2673	Coro::cede;
2297	}	2674	}
2298		2675
2299	while (my ($face, $info) = each %$faces) {	2676	while (my ($face, $info) = each %$faces) {
2300	next unless $info->{smooth};	2677	next unless $info->{smooth};
2301	my $idx = cf::face::find $face	2678	my $idx = cf::face::find $face
2302	or next;	2679	or next;
2303	if (my $smooth = cf::face::find $info->{smooth}) {	2680	if (my $smooth = cf::face::find $info->{smooth}) {
2304	cf::face::set_smooth $idx, $smooth;	2681	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
2305	} else {	2682	} else {
2306	warn "smooth face '$info->{smooth}' not found for face '$face'";	2683	warn "smooth face '$info->{smooth}' not found for face '$face'";
2307	}	2684	}
2308	Coro::cede;	2685	Coro::cede;
		2686	}
		2687	}
		2688
		2689	{
		2690	my $anims = $facedata->{animinfo};
		2691
		2692	while (my ($anim, $info) = each %$anims) {
		2693	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2694	Coro::cede;
		2695	}
		2696
		2697	cf::anim::invalidate_all; # d'oh
2309	}	2698	}
2310		2699
2311	1	2700	1
2312	}	2701	}
2313		2702
		2703	sub reload_regions {
		2704	load_resource_file "$MAPDIR/regions"
		2705	or die "unable to load regions file\n";
		2706	}
		2707
		2708	sub reload_facedata {
		2709	load_facedata "$DATADIR/facedata"
		2710	or die "unable to load facedata\n";
		2711	}
		2712
		2713	sub reload_archetypes {
		2714	load_resource_file "$DATADIR/archetypes"
		2715	or die "unable to load archetypes\n";
		2716	}
		2717
		2718	sub reload_treasures {
		2719	load_resource_file "$DATADIR/treasures"
		2720	or die "unable to load treasurelists\n";
		2721	}
		2722
2314	sub reload_resources {	2723	sub reload_resources {
2315	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2724	warn "reloading resource files...\n";
2316	or die "unable to load regions file\n";#d#	2725
		2726	reload_regions;
2317	load_facedata	2727	reload_facedata;
2318	or die "unable to load facedata\n";#d#	2728	#reload_archetypes;#d#
		2729	reload_archetypes;
		2730	reload_treasures;
		2731
		2732	warn "finished reloading resource files\n";
2319	}	2733	}
2320		2734
2321	sub init {	2735	sub init {
2322	reload_resources;	2736	reload_resources;
2323	}	2737	}
2324		2738
2325	sub cfg_load {	2739	sub cfg_load {
2326	open my $fh, "<:utf8", cf::confdir . "/config"	2740	open my $fh, "<:utf8", "$CONFDIR/config"
2327	or return;	2741	or return;
2328		2742
2329	local $/;	2743	local $/;
2330	*CFG = YAML::Syck::Load <$fh>;	2744	*CFG = YAML::Syck::Load <$fh>;
2331		2745
…		…
2376	},	2790	},
2377	);	2791	);
2378	}	2792	}
2379	}	2793	}
2380		2794
		2795	sub write_runtime {
		2796	my $runtime = "$LOCALDIR/runtime";
		2797
		2798	# first touch the runtime file to show we are still running:
		2799	# the fsync below can take a very very long time.
		2800
		2801	IO::AIO::aio_utime $runtime, undef, undef;
		2802
		2803	my $guard = cf::lock_acquire "write_runtime";
		2804
		2805	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2806	or return;
		2807
		2808	my $value = $cf::RUNTIME + 90 + 10;
		2809	# 10 is the runtime save interval, for a monotonic clock
		2810	# 60 allows for the watchdog to kill the server.
		2811
		2812	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2813	and return;
		2814
		2815	# always fsync - this file is important
		2816	aio_fsync $fh
		2817	and return;
		2818
		2819	# touch it again to show we are up-to-date
		2820	aio_utime $fh, undef, undef;
		2821
		2822	close $fh
		2823	or return;
		2824
		2825	aio_rename "$runtime~", $runtime
		2826	and return;
		2827
		2828	warn "runtime file written.\n";
		2829
		2830	1
		2831	}
		2832
2381	sub emergency_save() {	2833	sub emergency_save() {
2382	my $freeze_guard = cf::freeze_mainloop;	2834	my $freeze_guard = cf::freeze_mainloop;
2383		2835
2384	warn "enter emergency perl save\n";	2836	warn "enter emergency perl save\n";
2385		2837
…		…
2416		2868
2417	warn Carp::longmess "post_cleanup backtrace"	2869	warn Carp::longmess "post_cleanup backtrace"
2418	if $make_core;	2870	if $make_core;
2419	}	2871	}
2420		2872
2421	sub reload() {	2873	sub do_reload_perl() {
2422	# can/must only be called in main	2874	# can/must only be called in main
2423	if ($Coro::current != $Coro::main) {	2875	if ($Coro::current != $Coro::main) {
2424	warn "can only reload from main coroutine";	2876	warn "can only reload from main coroutine";
2425	return;	2877	return;
2426	}	2878	}
…		…
2460	%EXT_CORO = ();	2912	%EXT_CORO = ();
2461		2913
2462	warn "removing commands";	2914	warn "removing commands";
2463	%COMMAND = ();	2915	%COMMAND = ();
2464		2916
2465	warn "removing ext commands";	2917	warn "removing ext/exti commands";
2466	%EXTCMD = ();	2918	%EXTCMD = ();
		2919	%EXTICMD = ();
2467		2920
2468	warn "unloading/nuking all extensions";	2921	warn "unloading/nuking all extensions";
2469	for my $pkg (@EXTS) {	2922	for my $pkg (@EXTS) {
2470	warn "... unloading $pkg";	2923	warn "... unloading $pkg";
2471		2924
…		…
2501	Symbol::delete_package "safe::$_"	2954	Symbol::delete_package "safe::$_"
2502	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2955	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2503		2956
2504	warn "unloading cf.pm \"a bit\"";	2957	warn "unloading cf.pm \"a bit\"";
2505	delete $INC{"cf.pm"};	2958	delete $INC{"cf.pm"};
		2959	delete $INC{"cf/pod.pm"};
2506		2960
2507	# don't, removes xs symbols, too,	2961	# don't, removes xs symbols, too,
2508	# and global variables created in xs	2962	# and global variables created in xs
2509	#Symbol::delete_package __PACKAGE__;	2963	#Symbol::delete_package __PACKAGE__;
2510		2964
…		…
2525	warn "reattaching attachments to maps";	2979	warn "reattaching attachments to maps";
2526	reattach $_ for values %MAP;	2980	reattach $_ for values %MAP;
2527	warn "reattaching attachments to players";	2981	warn "reattaching attachments to players";
2528	reattach $_ for values %PLAYER;	2982	reattach $_ for values %PLAYER;
2529		2983
2530	warn "loading reloadable resources";
2531	reload_resources;
2532
2533	warn "leaving sync_job";	2984	warn "leaving sync_job";
2534		2985
2535	1	2986	1
2536	} or do {	2987	} or do {
2537	warn $@;	2988	warn $@;
…		…
2542	warn "reloaded";	2993	warn "reloaded";
2543	};	2994	};
2544		2995
2545	our $RELOAD_WATCHER; # used only during reload	2996	our $RELOAD_WATCHER; # used only during reload
2546		2997
		2998	sub reload_perl() {
		2999	# doing reload synchronously and two reloads happen back-to-back,
		3000	# coro crashes during coro_state_free->destroy here.
		3001
		3002	$RELOAD_WATCHER ||= Event->timer (
		3003	reentrant => 0,
		3004	after => 0,
		3005	data => WF_AUTOCANCEL,
		3006	cb => sub {
		3007	do_reload_perl;
		3008	undef $RELOAD_WATCHER;
		3009	},
		3010	);
		3011	}
		3012
2547	register_command "reload" => sub {	3013	register_command "reload" => sub {
2548	my ($who, $arg) = @_;	3014	my ($who, $arg) = @_;
2549		3015
2550	if ($who->flag (FLAG_WIZ)) {	3016	if ($who->flag (FLAG_WIZ)) {
2551	$who->message ("reloading server.");	3017	$who->message ("reloading server.");
2552		3018	async { reload_perl };
2553	# doing reload synchronously and two reloads happen back-to-back,
2554	# coro crashes during coro_state_free->destroy here.
2555
2556	$RELOAD_WATCHER ||= Event->timer (
2557	reentrant => 0,
2558	after => 0,
2559	data => WF_AUTOCANCEL,
2560	cb => sub {
2561	reload;
2562	undef $RELOAD_WATCHER;
2563	},
2564	);
2565	}	3019	}
2566	};	3020	};
2567		3021
2568	unshift @INC, $LIBDIR;	3022	unshift @INC, $LIBDIR;
2569		3023
2570	my $bug_warning = 0;	3024	my $bug_warning = 0;
2571		3025
		3026	our @WAIT_FOR_TICK;
		3027	our @WAIT_FOR_TICK_BEGIN;
		3028
		3029	sub wait_for_tick {
		3030	return unless $TICK_WATCHER->is_active;
		3031	return if $Coro::current == $Coro::main;
		3032
		3033	my $signal = new Coro::Signal;
		3034	push @WAIT_FOR_TICK, $signal;
		3035	$signal->wait;
		3036	}
		3037
		3038	sub wait_for_tick_begin {
		3039	return unless $TICK_WATCHER->is_active;
		3040	return if $Coro::current == $Coro::main;
		3041
		3042	my $signal = new Coro::Signal;
		3043	push @WAIT_FOR_TICK_BEGIN, $signal;
		3044	$signal->wait;
		3045	}
		3046
		3047	my $min = 1e6;#d#
		3048	my $avg = 10;
2572	$TICK_WATCHER = Event->timer (	3049	$TICK_WATCHER = Event->timer (
2573	reentrant => 0,	3050	reentrant => 0,
2574	parked => 1,	3051	parked => 1,
2575	prio => 0,	3052	prio => 0,
2576	at => $NEXT_TICK || $TICK,	3053	at => $NEXT_TICK || $TICK,
…		…
2580	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3057	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2581	unless ++$bug_warning > 10;	3058	unless ++$bug_warning > 10;
2582	return;	3059	return;
2583	}	3060	}
2584		3061
2585	$NOW = Event::time;	3062	$NOW = $tick_start = Event::time;
2586		3063
2587	cf::server_tick; # one server iteration	3064	cf::server_tick; # one server iteration
		3065
		3066	0 && sync_job {#d#
		3067	for(1..10) {
		3068	my $t = Event::time;
		3069	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3070	or die;
		3071
		3072	$map->width (50);
		3073	$map->height (50);
		3074	$map->alloc;
		3075	$map->_load_objects ("/tmp/x.map", 1);
		3076	my $t = Event::time - $t;
		3077
		3078	#next unless $t < 0.0013;#d#
		3079	if ($t < $min) {
		3080	$min = $t;
		3081	}
		3082	$avg = $avg * 0.99 + $t * 0.01;
		3083	}
		3084	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3085	exit 0;
		3086	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3087	};
		3088
2588	$RUNTIME += $TICK;	3089	$RUNTIME += $TICK;
2589	$NEXT_TICK += $TICK;	3090	$NEXT_TICK += $TICK;
2590		3091
2591	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3092	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2592	$NEXT_RUNTIME_WRITE = $NOW + 10;	3093	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2594	write_runtime	3095	write_runtime
2595	or warn "ERROR: unable to write runtime file: $!";	3096	or warn "ERROR: unable to write runtime file: $!";
2596	};	3097	};
2597	}	3098	}
2598		3099
2599	$WAIT_FOR_TICK->broadcast;
2600	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2601
2602	# my $AFTER = Event::time;	3100	# my $AFTER = Event::time;
2603	# warn $AFTER - $NOW;#d#	3101	# warn $AFTER - $NOW;#d#
2604		3102
		3103	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3104	$sig->send;
		3105	}
		3106	while (my $sig = shift @WAIT_FOR_TICK) {
		3107	$sig->send;
		3108	}
		3109
		3110	$NOW = Event::time;
		3111
2605	# if we are delayed by four ticks or more, skip them all	3112	# if we are delayed by four ticks or more, skip them all
2606	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3113	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2607		3114
2608	$TICK_WATCHER->at ($NEXT_TICK);	3115	$TICK_WATCHER->at ($NEXT_TICK);
2609	$TICK_WATCHER->start;	3116	$TICK_WATCHER->start;
		3117
		3118	$LOAD = ($NOW - $tick_start) / $TICK;
		3119	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3120
		3121	_post_tick;
		3122
		3123
2610	},	3124	},
2611	);	3125	);
2612		3126
2613	{	3127	{
2614	BDB::max_poll_time $TICK * 0.1;	3128	BDB::max_poll_time $TICK * 0.1;
…		…
2642		3156
2643	cf::sync_job {	3157	cf::sync_job {
2644	eval {	3158	eval {
2645	BDB::db_env_open	3159	BDB::db_env_open
2646	$DB_ENV,	3160	$DB_ENV,
2647	$BDB_ENV_DIR,	3161	$BDBDIR,
2648	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3162	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2649	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3163	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2650	0666;	3164	0666;
2651		3165
2652	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3166	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2653		3167
2654	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3168	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2655	$DB_ENV->set_lk_detect;	3169	$DB_ENV->set_lk_detect;
2656	};	3170	};
2657		3171
…		…
2673	prio => 6,	3187	prio => 6,
2674	cb => \&IO::AIO::poll_cb,	3188	cb => \&IO::AIO::poll_cb,
2675	);	3189	);
2676	}	3190	}
2677		3191
		3192	my $_log_backtrace;
		3193
		3194	sub _log_backtrace {
		3195	my ($msg, @addr) = @_;
		3196
		3197	$msg =~ s/\n//;
		3198
		3199	# limit the # of concurrent backtraces
		3200	if ($_log_backtrace < 2) {
		3201	++$_log_backtrace;
		3202	async {
		3203	my @bt = fork_call {
		3204	@addr = map { sprintf "%x", $_ } @addr;
		3205	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3206	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3207	or die "addr2line: $!";
		3208
		3209	my @funcs;
		3210	my @res = <$fh>;
		3211	chomp for @res;
		3212	while (@res) {
		3213	my ($func, $line) = splice @res, 0, 2, ();
		3214	push @funcs, "[$func] $line";
		3215	}
		3216
		3217	@funcs
		3218	};
		3219
		3220	LOG llevInfo, "[ABT] $msg\n";
		3221	LOG llevInfo, "[ABT] $_\n" for @bt;
		3222	--$_log_backtrace;
		3223	};
		3224	} else {
		3225	LOG llevInfo, "[ABT] $msg\n";
		3226	LOG llevInfo, "[ABT] [suppressed]\n";
		3227	}
		3228	}
		3229
		3230	# load additional modules
		3231	use cf::pod;
		3232
2678	END { cf::emergency_save }	3233	END { cf::emergency_save }
2679		3234
2680	1	3235	1
2681		3236

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