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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.249 by root, Wed Apr 18 12:43:54 2007 UTC vs.
Revision 1.306 by root, Sat Jul 14 14:33:30 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 3.61 ();	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;
21	use Coro::Storable;	23	use Coro::Storable;
22		24
		25	use JSON::XS 1.4 ();
23	use BDB ();	26	use BDB ();
24	use Data::Dumper;	27	use Data::Dumper;
25	use Digest::MD5;	28	use Digest::MD5;
26	use Fcntl;	29	use Fcntl;
27	use YAML::Syck ();	30	use YAML::Syck ();
28	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
29	use Time::HiRes;	32	use Time::HiRes;
30	use Compress::LZF;	33	use Compress::LZF;
		34	use Digest::MD5 ();
31		35
32	# configure various modules to our taste	36	# configure various modules to our taste
33	#	37	#
34	$Storable::canonical = 1; # reduce rsync transfers	38	$Storable::canonical = 1; # reduce rsync transfers
35	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
…		…
47	our %COMMAND = ();	51	our %COMMAND = ();
48	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
49		53
50	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
51	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
52	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
54		59
55	our $RELOAD; # number of reloads so far	60	our $RELOAD; # number of reloads so far
56	our @EVENT;	61	our @EVENT;
57	our $LIBDIR = datadir . "/ext";	62
		63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
58		74
59	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
60	our $TICK_WATCHER;	76	our $TICK_WATCHER;
61	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
…		…
73	our $RUNTIME;	89	our $RUNTIME;
74		90
75	our %PLAYER; # all users	91	our %PLAYER; # all users
76	our %MAP; # all maps	92	our %MAP; # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	93	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		94
81	# used to convert map paths into valid unix filenames by replacing / by ∕	95	# used to convert map paths into valid unix filenames by replacing / by ∕
82	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
83		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
		101
84	binmode STDOUT;	102	binmode STDOUT;
85	binmode STDERR;	103	binmode STDERR;
86		104
87	# read virtual server time, if available	105	# read virtual server time, if available
88	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
89	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
90	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
91	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
92	}	110	}
93		111
94	mkdir cf::localdir;	112	mkdir $_
95	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
96	mkdir cf::localdir . "/" . cf::tmpdir;
97	mkdir cf::localdir . "/" . cf::uniquedir;
98	mkdir $RANDOM_MAPS;
99	mkdir $BDB_ENV_DIR;
100		114
101	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
102		116
103	sub cf::map::normalise;	117	sub cf::map::normalise;
104		118
…		…
115	=item $cf::RUNTIME	129	=item $cf::RUNTIME
116		130
117	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
118	every server tick.	132	every server tick.
119		133
120	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
121		137
122	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
123	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
124		142
125	=item $cf::NOW	143	=item $cf::NOW
126		144
127	The time of the last (current) server tick.	145	The time of the last (current) server tick.
128		146
129	=item $cf::TICK	147	=item $cf::TICK
130		148
131	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
132		160
133	=item %cf::CFG	161	=item %cf::CFG
134		162
135	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
136	from wherever your confdir points to.	164	from wherever your confdir points to.
…		…
146	=cut	174	=cut
147		175
148	BEGIN {	176	BEGIN {
149	*CORE::GLOBAL::warn = sub {	177	*CORE::GLOBAL::warn = sub {
150	my $msg = join "", @_;	178	my $msg = join "", @_;
151	utf8::encode $msg;
152		179
153	$msg .= "\n"	180	$msg .= "\n"
154	unless $msg =~ /\n$/;	181	unless $msg =~ /\n$/;
155		182
		183	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		184
		185	utf8::encode $msg;
156	LOG llevError, $msg;	186	LOG llevError, $msg;
157	};	187	};
158	}	188	}
159		189
160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	190	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	191	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
162	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	192	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
163	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	193	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
164	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	194	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		195	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
165	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	196	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
166		197
167	# we bless all objects into (empty) derived classes to force a method lookup	198	# we bless all objects into (empty) derived classes to force a method lookup
168	# within the Safe compartment.	199	# within the Safe compartment.
169	for my $pkg (qw(	200	for my $pkg (qw(
170	cf::global cf::attachable	201	cf::global cf::attachable
…		…
178	}	209	}
179		210
180	$Event::DIED = sub {	211	$Event::DIED = sub {
181	warn "error in event callback: @_";	212	warn "error in event callback: @_";
182	};	213	};
		214
		215	#############################################################################
183		216
184	=head2 UTILITY FUNCTIONS	217	=head2 UTILITY FUNCTIONS
185		218
186	=over 4	219	=over 4
187		220
…		…
206	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	239	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
207	$d	240	$d
208	} || "[unable to dump $_[0]: '$@']";	241	} || "[unable to dump $_[0]: '$@']";
209	}	242	}
210		243
211	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
212
213	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
214		245
215	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
216		247
217	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
218		249
219	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 $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		255
		256	sub to_json ($) { $json_coder->encode ($_[0]) }
		257	sub from_json ($) { $json_coder->decode ($_[0]) }
220		258
221	=item cf::lock_wait $string	259	=item cf::lock_wait $string
222		260
223	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
224		262
…		…
230	returned.	268	returned.
231		269
232	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
233	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
234		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
235	=cut	277	=cut
236		278
237	our %LOCK;	279	our %LOCK;
238		280
239	sub lock_wait($) {	281	sub lock_wait($) {
…		…
256		298
257	Coro::guard {	299	Coro::guard {
258	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
260	}	302	}
		303	}
		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
261	}	309	}
262		310
263	sub freeze_mainloop {	311	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
265		313
…		…
280		328
281	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
282		330
283	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
284		332
285	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
288		337
289	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
292	fast or be very important.	341	fast or be very important.
…		…
295		344
296	sub sync_job(&) {	345	sub sync_job(&) {
297	my ($job) = @_;	346	my ($job) = @_;
298		347
299	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
300	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
302		353
303	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	355	# (but this is cancel-safe)
…		…
315		366
316	while ($busy) {	367	while ($busy) {
317	Coro::cede or Event::one_event;	368	Coro::cede or Event::one_event;
318	}	369	}
319		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
320	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
321	} else {	379	} else {
322	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
323		381
324	$job->()	382	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
344		402
345	$coro	403	$coro
346	}	404	}
347		405
348	sub write_runtime {	406	=item fork_call { }, $args
349	my $guard = cf::lock_acquire "write_runtime";
350		407
351	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.
352		412
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	413	=cut
354	or return;
355		414
356	my $value = $cf::RUNTIME + 90 + 10;	415	sub _store_scalar {
357	# 10 is the runtime save interval, for a monotonic clock	416	open my $fh, ">", \my $buf
358	# 60 allows for the watchdog to kill the server.	417	or die "fork_call: cannot open fh-to-buf in child : $!";
359		418	Storable::store_fd $_[0], $fh;
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	419	close $fh;
368	or return;
369		420
370	aio_rename "$runtime~", $runtime	421	$buf
371	and return;	422	}
372		423
		424	sub fork_call(&@) {
		425	my ($cb, @args) = @_;
		426
		427	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		428	# or die "socketpair: $!";
		429	pipe my $fh1, my $fh2
		430	or die "pipe: $!";
		431
		432	if (my $pid = fork) {
		433	close $fh2;
		434
		435	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		436	warn "pst<$res>" unless $res =~ /^pst/;
		437	$res = Coro::Storable::thaw $res;
		438
		439	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		440
		441	Carp::confess $$res unless "ARRAY" eq ref $res;
		442
		443	return wantarray ? @$res : $res->[-1];
		444	} else {
		445	reset_signals;
		446	local $SIG{__WARN__};
		447	local $SIG{__DIE__};
		448	# just in case, this hack effectively disables event
		449	# in the child. cleaner and slower would be canceling all watchers,
		450	# but this works for the time being.
		451	local $Coro::idle;
		452	$Coro::current->prio (Coro::PRIO_MAX);
		453
		454	eval {
		455	close $fh1;
		456
		457	my @res = eval { $cb->(@args) };
		458
		459	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		460	close $fh2;
		461	};
		462
		463	warn $@ if $@;
		464	_exit 0;
373	1	465	}
		466	}
		467
		468	=item $value = cf::db_get $family => $key
		469
		470	Returns a single value from the environment database.
		471
		472	=item cf::db_put $family => $key => $value
		473
		474	Stores the given C<$value> in the family. It can currently store binary
		475	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		476
		477	=cut
		478
		479	our $DB;
		480
		481	sub db_init {
		482	unless ($DB) {
		483	$DB = BDB::db_create $DB_ENV;
		484
		485	cf::sync_job {
		486	eval {
		487	$DB->set_flags (BDB::CHKSUM);
		488
		489	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		490	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		491	cf::cleanup "db_open(db): $!" if $!;
		492	};
		493	cf::cleanup "db_open(db): $@" if $@;
		494	};
		495	}
		496	}
		497
		498	sub db_get($$) {
		499	my $key = "$_[0]/$_[1]";
		500
		501	cf::sync_job {
		502	BDB::db_get $DB, undef, $key, my $data;
		503
		504	$! ? ()
		505	: $data
		506	}
		507	}
		508
		509	sub db_put($$$) {
		510	BDB::dbreq_pri 4;
		511	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		512	}
		513
		514	=item cf::cache $id => [$paths...], $processversion => $process
		515
		516	Generic caching function that returns the value of the resource $id,
		517	caching and regenerating as required.
		518
		519	This function can block.
		520
		521	=cut
		522
		523	sub cache {
		524	my ($id, $src, $processversion, $process) = @_;
		525
		526	my $meta =
		527	join "\x00",
		528	$processversion,
		529	map {
		530	aio_stat $_
		531	and Carp::croak "$_: $!";
		532
		533	($_, (stat _)[7,9])
		534	} @$src;
		535
		536	my $dbmeta = db_get cache => "$id/meta";
		537	if ($dbmeta ne $meta) {
		538	# changed, we may need to process
		539
		540	my @data;
		541	my $md5;
		542
		543	for (0 .. $#$src) {
		544	0 <= aio_load $src->[$_], $data[$_]
		545	or Carp::croak "$src->[$_]: $!";
		546	}
		547
		548	# if processing is expensive, check
		549	# checksum first
		550	if (1) {
		551	$md5 =
		552	join "\x00",
		553	$processversion,
		554	map {
		555	Coro::cede;
		556	($src->[$_], Digest::MD5::md5_hex $data[$_])
		557	} 0.. $#$src;
		558
		559
		560	my $dbmd5 = db_get cache => "$id/md5";
		561	if ($dbmd5 eq $md5) {
		562	db_put cache => "$id/meta", $meta;
		563
		564	return db_get cache => "$id/data";
		565	}
		566	}
		567
		568	my $t1 = Time::HiRes::time;
		569	my $data = $process->(\@data);
		570	my $t2 = Time::HiRes::time;
		571
		572	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		573
		574	db_put cache => "$id/data", $data;
		575	db_put cache => "$id/md5" , $md5;
		576	db_put cache => "$id/meta", $meta;
		577
		578	return $data;
		579	}
		580
		581	db_get cache => "$id/data"
374	}	582	}
375		583
376	=item cf::datalog type => key => value, ...	584	=item cf::datalog type => key => value, ...
377		585
378	Log a datalog packet of the given type with the given key-value pairs.	586	Log a datalog packet of the given type with the given key-value pairs.
…		…
396	attach callbacks/event handlers (a collection of which is called an "attachment")	604	attach callbacks/event handlers (a collection of which is called an "attachment")
397	to it. All such attachable objects support the following methods.	605	to it. All such attachable objects support the following methods.
398		606
399	In the following description, CLASS can be any of C<global>, C<object>	607	In the following description, CLASS can be any of C<global>, C<object>
400	C<player>, C<client> or C<map> (i.e. the attachable objects in	608	C<player>, C<client> or C<map> (i.e. the attachable objects in
401	crossfire+).	609	Crossfire TRT).
402		610
403	=over 4	611	=over 4
404		612
405	=item $attachable->attach ($attachment, key => $value...)	613	=item $attachable->attach ($attachment, key => $value...)
406		614
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	777	$registry = $CB_TYPE[$object_type] ||= [];
570		778
571	} elsif ($type eq "subtype") {	779	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	780	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	781	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	782	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		783
576	} elsif ($type eq "package") {	784	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	785	my $pkg = shift @arg;
578		786
579	while (my ($name, $id) = each %cb_id) {	787	while (my ($name, $id) = each %cb_id) {
…		…
608	_attach $registry, $klass, @attach;	816	_attach $registry, $klass, @attach;
609	}	817	}
610		818
611	$obj->{$name} = \%arg;	819	$obj->{$name} = \%arg;
612	} else {	820	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	821	warn "object uses attachment '$name' which is not available, postponing.\n";
614	}	822	}
615		823
616	$obj->{_attachment}{$name} = undef;	824	$obj->{_attachment}{$name} = undef;
617	}	825	}
618		826
…		…
620	if (ref $_[0]) {	828	if (ref $_[0]) {
621	_object_attach @_;	829	_object_attach @_;
622	} else {	830	} else {
623	_attach shift->_attach_registry, @_;	831	_attach shift->_attach_registry, @_;
624	}	832	}
		833	_recalc_want;
625	};	834	};
626		835
627	# all those should be optimised	836	# all those should be optimised
628	sub cf::attachable::detach {	837	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	838	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	841	delete $obj->{_attachment}{$name};
633	reattach ($obj);	842	reattach ($obj);
634	} else {	843	} else {
635	Carp::croak "cannot, currently, detach class attachments";	844	Carp::croak "cannot, currently, detach class attachments";
636	}	845	}
		846	_recalc_want;
637	};	847	};
638		848
639	sub cf::attachable::attached {	849	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	850	my ($obj, $name) = @_;
641		851
…		…
814	or return;	1024	or return;
815	$av = eval { (Storable::thaw $av)->{objs} };	1025	$av = eval { (Storable::thaw $av)->{objs} };
816	}	1026	}
817		1027
818	warn sprintf "loading %s (%d)\n",	1028	warn sprintf "loading %s (%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1029	$filename, length $data, scalar @{$av || []};
820	return ($data, $av);	1030	return ($data, $av);
821	}	1031	}
		1032
		1033	=head2 COMMAND CALLBACKS
		1034
		1035	=over 4
		1036
		1037	=cut
822		1038
823	#############################################################################	1039	#############################################################################
824	# command handling &c	1040	# command handling &c
825		1041
826	=item cf::register_command $name => \&callback($ob,$args);	1042	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1055	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1056	}
841		1057
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1058	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1059
844	Register a callbackf ro execution when the client sends an extcmd packet.	1060	Register a callback for execution when the client sends an (synchronous)
		1061	extcmd packet. Ext commands will be processed in the order they are
		1062	received by the server, like other user commands. The first argument is
		1063	the logged-in player. Ext commands can only be processed after a player
		1064	has logged in successfully.
845		1065
846	If the callback returns something, it is sent back as if reply was being	1066	If the callback returns something, it is sent back as if reply was being
847	called.	1067	called.
848		1068
		1069	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1070
		1071	Register a callback for execution when the client sends an (asynchronous)
		1072	exticmd packet. Exti commands are processed by the server as soon as they
		1073	are received, i.e. out of order w.r.t. other commands. The first argument
		1074	is a client socket. Exti commands can be received anytime, even before
		1075	log-in.
		1076
		1077	If the callback returns something, it is sent back as if reply was being
		1078	called.
		1079
849	=cut	1080	=cut
850		1081
851	sub register_extcmd {	1082	sub register_extcmd {
852	my ($name, $cb) = @_;	1083	my ($name, $cb) = @_;
853		1084
854	$EXTCMD{$name} = $cb;	1085	$EXTCMD{$name} = $cb;
		1086	}
		1087
		1088	sub register_exticmd {
		1089	my ($name, $cb) = @_;
		1090
		1091	$EXTICMD{$name} = $cb;
855	}	1092	}
856		1093
857	cf::player->attach (	1094	cf::player->attach (
858	on_command => sub {	1095	on_command => sub {
859	my ($pl, $name, $params) = @_;	1096	my ($pl, $name, $params) = @_;
…		…
868	cf::override;	1105	cf::override;
869	},	1106	},
870	on_extcmd => sub {	1107	on_extcmd => sub {
871	my ($pl, $buf) = @_;	1108	my ($pl, $buf) = @_;
872		1109
873	my $msg = eval { from_json $buf };	1110	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
874		1111
875	if (ref $msg) {	1112	if (ref $msg) {
876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1113	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
877	if (my %reply = $cb->($pl, $msg)) {	1114	if (my %reply = $cb->($pl, $msg)) {
878	$pl->ext_reply ($msg->{msgid}, %reply);	1115	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
884		1121
885	cf::override;	1122	cf::override;
886	},	1123	},
887	);	1124	);
888		1125
889	sub load_extension {
890	my ($path) = @_;
891
892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
893	my $base = $1;
894	my $pkg = $1;
895	$pkg =~ s/[^[:word:]]/_/g;
896	$pkg = "ext::$pkg";
897
898	warn "... loading '$path' into '$pkg'\n";
899
900	open my $fh, "<:utf8", $path
901	or die "$path: $!";
902
903	my $source =
904	"package $pkg; use strict; use utf8;\n"
905	. "#line 1 \"$path\"\n{\n"
906	. (do { local $/; <$fh> })
907	. "\n};\n1";
908
909	unless (eval $source) {
910	my $msg = $@ ? "$path: $@\n"
911	: "extension disabled.\n";
912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
913	warn $@;
914	warn "mandatory extension failed to load, exiting.\n";
915	exit 1;
916	}
917	die $@;
918	}
919
920	push @EXTS, $pkg;
921	}
922
923	sub load_extensions {	1126	sub load_extensions {
		1127	cf::sync_job {
		1128	my %todo;
		1129
924	for my $ext (<$LIBDIR/*.ext>) {	1130	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1131	next unless -r $path;
926	eval {	1132
927	load_extension $ext;	1133	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1134	my $base = $1;
		1135	my $pkg = $1;
		1136	$pkg =~ s/[^[:word:]]/_/g;
		1137	$pkg = "ext::$pkg";
		1138
		1139	open my $fh, "<:utf8", $path
		1140	or die "$path: $!";
		1141
		1142	my $source = do { local $/; <$fh> };
		1143
		1144	my %ext = (
		1145	path => $path,
		1146	base => $base,
		1147	pkg => $pkg,
		1148	);
		1149
		1150	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1151	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1152
		1153	$ext{source} =
		1154	"package $pkg; use strict; use utf8;\n"
		1155	. "#line 1 \"$path\"\n{\n"
		1156	. $source
		1157	. "\n};\n1";
		1158
		1159	$todo{$base} = \%ext;
		1160	}
		1161
		1162	my %done;
		1163	while (%todo) {
		1164	my $progress;
		1165
		1166	while (my ($k, $v) = each %todo) {
		1167	for (split /,\s*/, $v->{meta}{depends}) {
		1168	goto skip
		1169	unless exists $done{$_};
		1170	}
		1171
		1172	warn "... loading '$k' into '$v->{pkg}'\n";
		1173
		1174	unless (eval $v->{source}) {
		1175	my $msg = $@ ? "$v->{path}: $@\n"
		1176	: "$v->{base}: extension inactive.\n";
		1177
		1178	if (exists $v->{meta}{mandatory}) {
		1179	warn $msg;
		1180	warn "mandatory extension failed to load, exiting.\n";
		1181	exit 1;
		1182	}
		1183
		1184	warn $msg;
		1185	}
		1186
		1187	$done{$k} = delete $todo{$k};
		1188	push @EXTS, $v->{pkg};
		1189	$progress = 1;
928	1	1190	}
929	} or warn "$ext not loaded: $@";	1191
		1192	skip:
		1193	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1194	unless $progress;
		1195	}
930	}	1196	};
931	}	1197	}
932		1198
933	#############################################################################	1199	#############################################################################
934		1200
		1201	=back
		1202
935	=head2 CORE EXTENSIONS	1203	=head2 CORE EXTENSIONS
936		1204
937	Functions and methods that extend core crossfire objects.	1205	Functions and methods that extend core crossfire objects.
938		1206
939	=cut	1207	=cut
…		…
951	Returns the given player object, loading it if necessary (might block).	1219	Returns the given player object, loading it if necessary (might block).
952		1220
953	=cut	1221	=cut
954		1222
955	sub playerdir($) {	1223	sub playerdir($) {
956	cf::localdir	1224	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1225	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1226	}
962		1227
963	sub path($) {	1228	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1229	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
1084	while and may block, so not sync_job-capable, ever.	1349	while and may block, so not sync_job-capable, ever.
1085		1350
1086	=cut	1351	=cut
1087		1352
1088	sub list_logins {	1353	sub list_logins {
1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1354	my $dirs = aio_readdir $PLAYERDIR
1090	or return [];	1355	or return [];
1091		1356
1092	my @logins;	1357	my @logins;
1093		1358
1094	for my $login (@$dirs) {	1359	for my $login (@$dirs) {
…		…
1129	}	1394	}
1130		1395
1131	\@paths	1396	\@paths
1132	}	1397	}
1133		1398
		1399	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1400
		1401	Expand crossfire pod fragments into protocol xml.
		1402
		1403	=cut
		1404
		1405	sub expand_cfpod {
		1406	((my $self), (local $_)) = @_;
		1407
		1408	# escape & and <
		1409	s/&/&amp;/g;
		1410	s/(?<![BIUGH])</&lt;/g;
		1411
		1412	# this is buggy, it needs to properly take care of nested <'s
		1413
		1414	1 while
		1415	# replace B<>, I<>, U<> etc.
		1416	s/B<([^\>]*)>/<b>$1<\/b>/
		1417	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1418	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1419	# replace G<male|female> tags
		1420	|| s{G<([^>|]*)\|([^>]*)>}{
		1421	$self->gender ? $2 : $1
		1422	}ge
		1423	# replace H<hint text>
		1424	|| s{H<([^\>]*)>}
		1425	{
		1426	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1427	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1428	"")
		1429	[$self->{hintmode}]
		1430	}ge;
		1431
		1432	# create single paragraphs (very hackish)
		1433	s/(?<=\S)\n(?=\w)/ /g;
		1434
		1435	# compress some whitespace
		1436	s/\s+\n/\n/g; # ws line-ends
		1437	s/\n\n+/\n/g; # double lines
		1438	s/^\n+//; # beginning lines
		1439	s/\n+$//; # ending lines
		1440
		1441	$_
		1442	}
		1443
		1444	sub hintmode {
		1445	$_[0]{hintmode} = $_[1] if @_ > 1;
		1446	$_[0]{hintmode}
		1447	}
		1448
1134	=item $player->ext_reply ($msgid, %msg)	1449	=item $player->ext_reply ($msgid, %msg)
1135		1450
1136	Sends an ext reply to the player.	1451	Sends an ext reply to the player.
1137		1452
1138	=cut	1453	=cut
1139		1454
1140	sub ext_reply($$%) {	1455	sub ext_reply($$%) {
1141	my ($self, $id, %msg) = @_;	1456	my ($self, $id, %msg) = @_;
1142		1457
1143	$msg{msgid} = $id;	1458	$msg{msgid} = $id;
1144		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1145	$self->send ("ext " . cf::to_json \%msg);
1146	}	1460	}
1147		1461
1148	=item $player->ext_event ($type, %msg)	1462	=item $player->ext_event ($type, %msg)
1149		1463
1150	Sends an ext event to the client.	1464	Sends an ext event to the client.
…		…
1165		1479
1166	package cf::region;	1480	package cf::region;
1167		1481
1168	=item cf::region::find_by_path $path	1482	=item cf::region::find_by_path $path
1169		1483
1170	Tries to decuce the probable region for a map knowing only its path.	1484	Tries to decuce the likely region for a map knowing only its path.
1171		1485
1172	=cut	1486	=cut
1173		1487
1174	sub find_by_path($) {	1488	sub find_by_path($) {
1175	my ($path) = @_;	1489	my ($path) = @_;
1176		1490
1177	my ($match, $specificity);	1491	my ($match, $specificity);
1178		1492
1179	for my $region (list) {	1493	for my $region (list) {
1180	if ($region->match && $path =~ $region->match) {	1494	if ($region->{match} && $path =~ $region->{match}) {
1181	($match, $specificity) = ($region, $region->specificity)	1495	($match, $specificity) = ($region, $region->specificity)
1182	if $region->specificity > $specificity;	1496	if $region->specificity > $specificity;
1183	}	1497	}
1184	}	1498	}
1185		1499
…		…
1249	my ($self, $merge) = @_;	1563	my ($self, $merge) = @_;
1250		1564
1251	# we have to keep some variables in memory intact	1565	# we have to keep some variables in memory intact
1252	local $self->{path};	1566	local $self->{path};
1253	local $self->{load_path};	1567	local $self->{load_path};
1254	local $self->{deny_save};
1255	local $self->{deny_reset};
1256		1568
1257	$self->SUPER::thawer_merge ($merge);	1569	$self->SUPER::thawer_merge ($merge);
1258	}	1570	}
1259		1571
1260	sub normalise {	1572	sub normalise {
…		…
1332		1644
1333	# the original (read-only) location	1645	# the original (read-only) location
1334	sub load_path {	1646	sub load_path {
1335	my ($self) = @_;	1647	my ($self) = @_;
1336		1648
1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1649	"$MAPDIR/$self->{path}.map"
1338	}	1650	}
1339		1651
1340	# the temporary/swap location	1652	# the temporary/swap location
1341	sub save_path {	1653	sub save_path {
1342	my ($self) = @_;	1654	my ($self) = @_;
1343		1655
1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1656	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1657	"$TMPDIR/$path.map"
1346	}	1658	}
1347		1659
1348	# the unique path, undef == no special unique path	1660	# the unique path, undef == no special unique path
1349	sub uniq_path {	1661	sub uniq_path {
1350	my ($self) = @_;	1662	my ($self) = @_;
1351		1663
1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1664	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1665	"$UNIQUEDIR/$path"
1354	}	1666	}
1355		1667
1356	# and all this just because we cannot iterate over	1668	# and all this just because we cannot iterate over
1357	# all maps in C++...	1669	# all maps in C++...
1358	sub change_all_map_light {	1670	sub change_all_map_light {
1359	my ($change) = @_;	1671	my ($change) = @_;
1360		1672
1361	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1362	for grep $_->outdoor, values %cf::MAP;	1674	for grep $_->outdoor, values %cf::MAP;
		1675	}
		1676
		1677	sub decay_objects {
		1678	my ($self) = @_;
		1679
		1680	return if $self->{deny_reset};
		1681
		1682	$self->do_decay_objects;
1363	}	1683	}
1364		1684
1365	sub unlink_save {	1685	sub unlink_save {
1366	my ($self) = @_;	1686	my ($self) = @_;
1367		1687
…		…
1425	$self->load_header_orig	1745	$self->load_header_orig
1426	or return;	1746	or return;
1427	$self->prepare_orig;	1747	$self->prepare_orig;
1428	}	1748	}
1429		1749
		1750	$self->{deny_reset} = 1
		1751	if $self->no_reset;
		1752
1430	$self->default_region (cf::region::find_by_path $self->{path})	1753	$self->default_region (cf::region::find_by_path $self->{path})
1431	unless $self->default_region;	1754	unless $self->default_region;
1432		1755
1433	1	1756	1
1434	}	1757	}
…		…
1449	$map->{last_save} = $cf::RUNTIME;	1772	$map->{last_save} = $cf::RUNTIME;
1450		1773
1451	$map->load_header	1774	$map->load_header
1452	or return;	1775	or return;
1453		1776
1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1777	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1455	# doing this can freeze the server in a sync job, obviously	1778	# doing this can freeze the server in a sync job, obviously
1456	#$cf::WAIT_FOR_TICK->wait;	1779	#$cf::WAIT_FOR_TICK->wait;
1457	$map->reset;	1780	$map->reset;
1458	undef $guard;	1781	undef $guard;
1459	return find $path;	1782	return find $path;
…		…
1470	my ($self) = @_;	1793	my ($self) = @_;
1471		1794
1472	local $self->{deny_reset} = 1; # loading can take a long time	1795	local $self->{deny_reset} = 1; # loading can take a long time
1473		1796
1474	my $path = $self->{path};	1797	my $path = $self->{path};
		1798
		1799	{
1475	my $guard = cf::lock_acquire "map_load:$path";	1800	my $guard = cf::lock_acquire "map_load:$path";
1476		1801
1477	return if $self->in_memory != cf::MAP_SWAPPED;	1802	return if $self->in_memory != cf::MAP_SWAPPED;
1478		1803
1479	$self->in_memory (cf::MAP_LOADING);	1804	$self->in_memory (cf::MAP_LOADING);
1480		1805
1481	$self->alloc;	1806	$self->alloc;
1482		1807
1483	$self->pre_load;	1808	$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;	1809	Coro::cede;
1510	$self->set_darkness_map;	1810
		1811	$self->_load_objects ($self->{load_path}, 1)
		1812	or return;
		1813
		1814	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1815	if delete $self->{load_original};
		1816
		1817	if (my $uniq = $self->uniq_path) {
		1818	utf8::encode $uniq;
		1819	if (aio_open $uniq, O_RDONLY, 0) {
		1820	$self->clear_unique_items;
		1821	$self->_load_objects ($uniq, 0);
		1822	}
		1823	}
		1824
		1825	Coro::cede;
		1826	# now do the right thing for maps
		1827	$self->link_multipart_objects;
1511	$self->difficulty ($self->estimate_difficulty)	1828	$self->difficulty ($self->estimate_difficulty)
1512	unless $self->difficulty;	1829	unless $self->difficulty;
1513	Coro::cede;	1830	Coro::cede;
		1831
		1832	unless ($self->{deny_activate}) {
		1833	$self->decay_objects;
		1834	$self->fix_auto_apply;
		1835	$self->update_buttons;
		1836	Coro::cede;
		1837	$self->set_darkness_map;
		1838	Coro::cede;
1514	$self->activate;	1839	$self->activate;
1515	Coro::cede;	1840	}
		1841
		1842	$self->in_memory (cf::MAP_IN_MEMORY);
1516	}	1843	}
1517		1844
1518	$self->post_load;	1845	$self->post_load;
1519	Coro::cede;
1520
1521	$self->in_memory (cf::MAP_IN_MEMORY);
1522	}	1846	}
1523		1847
1524	sub customise_for {	1848	sub customise_for {
1525	my ($self, $ob) = @_;	1849	my ($self, $ob) = @_;
1526		1850
1527	return find "~" . $ob->name . "/" . $self->{path}	1851	return find "~" . $ob->name . "/" . $self->{path}
1528	if $self->per_player;	1852	if $self->per_player;
		1853
		1854	# return find "?party/" . $ob->name . "/" . $self->{path}
		1855	# if $self->per_party;
1529		1856
1530	$self	1857	$self
1531	}	1858	}
1532		1859
1533	# find and load all maps in the 3x3 area around a map	1860	# find and load all maps in the 3x3 area around a map
…		…
1644		1971
1645	sub reset_at {	1972	sub reset_at {
1646	my ($self) = @_;	1973	my ($self) = @_;
1647		1974
1648	# TODO: safety, remove and allow resettable per-player maps	1975	# 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};	1976	return 1e99 if $self->{deny_reset};
1651		1977
1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1654		1980
…		…
1665	my ($self) = @_;	1991	my ($self) = @_;
1666		1992
1667	my $lock = cf::lock_acquire "map_data:$self->{path}";	1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
1668		1994
1669	return if $self->players;	1995	return if $self->players;
1670	return if $self->isa ("ext::map_per_player");#d#
1671		1996
1672	warn "resetting map ", $self->path;#d#	1997	warn "resetting map ", $self->path;
1673		1998
1674	$self->in_memory (cf::MAP_SWAPPED);	1999	$self->in_memory (cf::MAP_SWAPPED);
1675		2000
1676	# need to save uniques path	2001	# need to save uniques path
1677	unless ($self->{deny_save}) {	2002	unless ($self->{deny_save}) {
…		…
1709	$cf::MAP{$self->path} = $self;	2034	$cf::MAP{$self->path} = $self;
1710		2035
1711	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1712	}	2037	}
1713		2038
		2039	=item $maps = cf::map::tmp_maps
		2040
		2041	Returns an arrayref with all map paths of currently instantiated and saved
		2042	maps. May block.
		2043
		2044	=cut
		2045
		2046	sub tmp_maps() {
		2047	[
		2048	map {
		2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $TMPDIR or [] }
		2054	]
		2055	}
		2056
		2057	=item $maps = cf::map::random_maps
		2058
		2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
		2061
		2062	=cut
		2063
		2064	sub random_maps() {
		2065	[
		2066	map {
		2067	utf8::decode $_;
		2068	/\.map$/
		2069	? normalise "?random/$_"
		2070	: ()
		2071	} @{ aio_readdir $RANDOMDIR or [] }
		2072	]
		2073	}
		2074
1714	=item cf::map::unique_maps	2075	=item cf::map::unique_maps
1715		2076
1716	Returns an arrayref of paths of all shared maps that have	2077	Returns an arrayref of paths of all shared maps that have
1717	instantiated unique items. May block.	2078	instantiated unique items. May block.
1718		2079
1719	=cut	2080	=cut
1720		2081
1721	sub unique_maps() {	2082	sub unique_maps() {
1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2083	[
1723	or return;	2084	map {
1724
1725	my @paths;
1726
1727	for (@$files) {
1728	utf8::decode $_;	2085	utf8::decode $_;
1729	next if /\.pst$/;	2086	/\.map$/
1730	next unless /^$PATH_SEP/o;	2087	? normalise $_
1731		2088	: ()
1732	push @paths, cf::map::normalise $_;	2089	} @{ aio_readdir $UNIQUEDIR or [] }
1733	}	2090	]
1734
1735	\@paths
1736	}	2091	}
1737		2092
1738	package cf;	2093	package cf;
1739		2094
1740	=back	2095	=back
…		…
1786		2141
1787	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1788		2143
1789	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1790	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1791	} else {	2147	} else {
		2148	my $pl = $self->contr;
		2149
		2150	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2151	my $diag = $pl->{npc_dialog};
		2152	$diag->{pl}->ext_reply (
		2153	$diag->{id},
		2154	msgtype => "reply",
		2155	msg => $diag->{pl}->expand_cfpod ($msg),
		2156	add_topics => []
		2157	);
		2158
		2159	} else {
1792	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1793	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1794	}	2163	}
1795	}	2164	}
1796		2165
1797	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1798		2167
…		…
1846	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1847		2216
1848	return if UNIVERSAL::isa $self->map, "ext::map_link";	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1849		2218
1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1851	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1852		2221
1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2222	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1854	}	2223	}
1855		2224
1856	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1857	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1858		2229
1859	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1860		2231
1861	unless ($map) {	2232	unless ($map) {
1862	# restore original map position	2233	# restore original map position
…		…
1885		2256
1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1887	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1888	}	2259	}
1889		2260
1890	cf::player->attach (	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1891	on_logout => sub {
1892	my ($pl) = @_;
1893		2262
1894	# abort map switching before logout	2263	Moves the player to the given map-path and coordinates by first freezing
1895	if ($pl->ob->{_link_pos}) {	2264	her, loading and preparing them map, calling the provided $check callback
1896	cf::sync_job {	2265	that has to return the map if sucecssful, and then unfreezes the player on
1897	$pl->ob->leave_link	2266	the new (success) or old (failed) map position. In either case, $done will
1898	};	2267	be called at the end of this process.
1899	}
1900	},
1901	on_login => sub {
1902	my ($pl) = @_;
1903		2268
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	2269	=cut
		2270
		2271	our $GOTOGEN;
1925		2272
1926	sub cf::object::player::goto {	2273	sub cf::object::player::goto {
1927	my ($self, $path, $x, $y) = @_;	2274	my ($self, $path, $x, $y, $check, $done) = @_;
		2275
		2276	# do generation counting so two concurrent goto's will be executed in-order
		2277	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1928		2278
1929	$self->enter_link;	2279	$self->enter_link;
1930		2280
1931	(async {	2281	(async {
1932	my $map = eval {	2282	my $map = eval {
1933	my $map = cf::map::find $path;	2283	my $map = cf::map::find $path;
		2284
		2285	if ($map) {
1934	$map = $map->customise_for ($self) if $map;	2286	$map = $map->customise_for ($self);
		2287	$map = $check->($map) if $check && $map;
		2288	} else {
		2289	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2290	}
		2291
1935	$map	2292	$map
		2293	};
		2294
		2295	if ($@) {
		2296	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2297	LOG llevError | logBacktrace, Carp::longmess $@;
1936	} or	2298	}
1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1938		2299
		2300	if ($gen == $self->{_goto_generation}) {
		2301	delete $self->{_goto_generation};
1939	$self->leave_link ($map, $x, $y);	2302	$self->leave_link ($map, $x, $y);
		2303	}
		2304
		2305	$done->() if $done;
1940	})->prio (1);	2306	})->prio (1);
1941	}	2307	}
1942		2308
1943	=item $player_object->enter_exit ($exit_object)	2309	=item $player_object->enter_exit ($exit_object)
1944		2310
…		…
1983		2349
1984	$rmp->{random_seed} ||= $exit->random_seed;	2350	$rmp->{random_seed} ||= $exit->random_seed;
1985		2351
1986	my $data = cf::to_json $rmp;	2352	my $data = cf::to_json $rmp;
1987	my $md5 = Digest::MD5::md5_hex $data;	2353	my $md5 = Digest::MD5::md5_hex $data;
1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2354	my $meta = "$RANDOMDIR/$md5.meta";
1989		2355
1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2356	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1991	aio_write $fh, 0, (length $data), $data, 0;	2357	aio_write $fh, 0, (length $data), $data, 0;
1992	undef $fh;	2358	undef $fh;
1993	aio_rename "$meta~", $meta;	2359	aio_rename "$meta~", $meta;
…		…
2012	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2378	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2013	my $hp = $exit->stats->hp;	2379	my $hp = $exit->stats->hp;
2014	my $sp = $exit->stats->sp;	2380	my $sp = $exit->stats->sp;
2015		2381
2016	$self->enter_link;	2382	$self->enter_link;
		2383
		2384	# if exit is damned, update players death & WoR home-position
		2385	$self->contr->savebed ($slaying, $hp, $sp)
		2386	if $exit->flag (FLAG_DAMNED);
2017		2387
2018	(async {	2388	(async {
2019	$self->deactivate_recursive; # just to be sure	2389	$self->deactivate_recursive; # just to be sure
2020	unless (eval {	2390	unless (eval {
2021	$self->goto ($slaying, $hp, $sp);	2391	$self->goto ($slaying, $hp, $sp);
…		…
2049		2419
2050	utf8::encode $text;	2420	utf8::encode $text;
2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2421	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2052	}	2422	}
2053		2423
		2424	=item $client->send_msg ($color, $type, $msg, [extra...])
		2425
		2426	Send a drawinfo or msg packet to the client, formatting the msg for the
		2427	client if neccessary. C<$type> should be a string identifying the type of
		2428	the message, with C<log> being the default. If C<$color> is negative, suppress
		2429	the message unless the client supports the msg packet.
		2430
		2431	=cut
		2432
		2433	sub cf::client::send_msg {
		2434	my ($self, $color, $type, $msg, @extra) = @_;
		2435
		2436	$msg = $self->pl->expand_cfpod ($msg);
		2437
		2438	return unless @extra || length $msg;
		2439
		2440	if ($self->can_msg) {
		2441	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2442	} else {
		2443	# replace some tags by gcfclient-compatible ones
		2444	for ($msg) {
		2445	1 while
		2446	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2447	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2448	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2449	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2450	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2451	}
		2452
		2453	if ($color >= 0) {
		2454	if (0 && $msg =~ /\[/) {
		2455	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2456	} else {
		2457	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2458	$self->send_packet ("drawinfo $color $msg")
		2459	}
		2460	}
		2461	}
		2462	}
		2463
2054	=item $client->ext_event ($type, %msg)	2464	=item $client->ext_event ($type, %msg)
2055		2465
2056	Sends an exti event to the client.	2466	Sends an ext event to the client.
2057		2467
2058	=cut	2468	=cut
2059		2469
2060	sub cf::client::ext_event($$%) {	2470	sub cf::client::ext_event($$%) {
2061	my ($self, $type, %msg) = @_;	2471	my ($self, $type, %msg) = @_;
2062		2472
		2473	return unless $self->extcmd;
		2474
2063	$msg{msgtype} = "event_$type";	2475	$msg{msgtype} = "event_$type";
2064	$self->send_packet ("ext " . cf::to_json \%msg);	2476	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2065	}	2477	}
2066		2478
2067	=item $success = $client->query ($flags, "text", \&cb)	2479	=item $success = $client->query ($flags, "text", \&cb)
2068		2480
2069	Queues a query to the client, calling the given callback with	2481	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>,	2482	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>.	2483	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2072		2484
2073	Queries can fail, so check the return code. Or don't, as queries will become	2485	Queries can fail, so check the return code. Or don't, as queries will
2074	reliable at some point in the future.	2486	become reliable at some point in the future.
2075		2487
2076	=cut	2488	=cut
2077		2489
2078	sub cf::client::query {	2490	sub cf::client::query {
2079	my ($self, $flags, $text, $cb) = @_;	2491	my ($self, $flags, $text, $cb) = @_;
…		…
2087	utf8::encode $text;	2499	utf8::encode $text;
2088	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2500	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2089		2501
2090	$self->send_packet ($self->{query_queue}[0][0])	2502	$self->send_packet ($self->{query_queue}[0][0])
2091	if @{ $self->{query_queue} } == 1;	2503	if @{ $self->{query_queue} } == 1;
		2504
		2505	1
2092	}	2506	}
2093		2507
2094	cf::client->attach (	2508	cf::client->attach (
		2509	on_connect => sub {
		2510	my ($ns) = @_;
		2511
		2512	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2513	},
2095	on_reply => sub {	2514	on_reply => sub {
2096	my ($ns, $msg) = @_;	2515	my ($ns, $msg) = @_;
2097		2516
2098	# this weird shuffling is so that direct followup queries	2517	# this weird shuffling is so that direct followup queries
2099	# get handled first	2518	# get handled first
…		…
2111	} else {	2530	} else {
2112	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2531	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2113	}	2532	}
2114	}	2533	}
2115	},	2534	},
		2535	on_exticmd => sub {
		2536	my ($ns, $buf) = @_;
		2537
		2538	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2539
		2540	if (ref $msg) {
		2541	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2542	if (my %reply = $cb->($ns, $msg)) {
		2543	$reply{msgid} = $msg->{msgid};
		2544	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2545	}
		2546	}
		2547	} else {
		2548	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2549	}
		2550
		2551	cf::override;
		2552	},
2116	);	2553	);
2117		2554
2118	=item $client->async (\&cb)	2555	=item $client->async (\&cb)
2119		2556
2120	Create a new coroutine, running the specified callback. The coroutine will	2557	Create a new coroutine, running the specified callback. The coroutine will
…		…
2169		2606
2170	=pod	2607	=pod
2171		2608
2172	The following functions and methods are available within a safe environment:	2609	The following functions and methods are available within a safe environment:
2173		2610
2174	cf::object contr pay_amount pay_player map	2611	cf::object
		2612	contr pay_amount pay_player map x y force_find force_add
		2613	insert remove
		2614
2175	cf::object::player player	2615	cf::object::player
2176	cf::player peaceful	2616	player
2177	cf::map trigger	2617
		2618	cf::player
		2619	peaceful
		2620
		2621	cf::map
		2622	trigger
2178		2623
2179	=cut	2624	=cut
2180		2625
2181	for (	2626	for (
2182	["cf::object" => qw(contr pay_amount pay_player map)],	2627	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2628	insert remove)],
2183	["cf::object::player" => qw(player)],	2629	["cf::object::player" => qw(player)],
2184	["cf::player" => qw(peaceful)],	2630	["cf::player" => qw(peaceful)],
2185	["cf::map" => qw(trigger)],	2631	["cf::map" => qw(trigger)],
2186	) {	2632	) {
2187	no strict 'refs';	2633	no strict 'refs';
…		…
2258	=back	2704	=back
2259		2705
2260	=cut	2706	=cut
2261		2707
2262	#############################################################################	2708	#############################################################################
2263
2264	=head2 EXTENSION DATABASE SUPPORT
2265
2266	Crossfire maintains a very simple database for extension use. It can
2267	currently store anything that can be serialised using Storable, which
2268	excludes objects.
2269
2270	The parameter C<$family> should best start with the name of the extension
2271	using it, it should be unique.
2272
2273	=over 4
2274
2275	=item $value = cf::db_get $family => $key
2276
2277	Returns a single value from the database.
2278
2279	=item cf::db_put $family => $key => $value
2280
2281	Stores the given C<$value> in the family.
2282
2283	=cut
2284
2285	our $DB;
2286
2287	sub db_init {
2288	unless ($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
2302	my $path = cf::localdir . "/database.pst";
2303	if (stat $path) {
2304	cf::sync_job {
2305	my $pst = Storable::retrieve $path;
2306
2307	cf::db_put (board => data => $pst->{board});
2308	cf::db_put (guildrules => data => $pst->{guildrules});
2309	cf::db_put (rent => balance => $pst->{rent}{balance});
2310	BDB::db_env_txn_checkpoint $DB_ENV;
2311
2312	unlink $path;
2313	};
2314	}
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 { };
2332	}
2333
2334	=item cf::cache $id => ...
2335
2336	Generic caching function that returns the value of the resource $id,
2337	caching and regenerating as required.
2338
2339	This function can block.
2340
2341	source => filename returning the data (must be a scalar)
2342	expensive => true == try to cache harder
2343	filter => sub that processes the data into a scalar
2344
2345	=cut
2346
2347	sub cache {
2348	my ($id, %arg) = @_;
2349
2350	aio_stat $arg{source}
2351	and Carp::croak "$arg{source}: $!";
2352
2353	my $meta = join ":", (stat _)[7,9];
2354	my $md5;
2355
2356	if ($arg{expensive}) {
2357	0 <= aio_load $arg{source}, my $buf
2358	or Carp::croak "$arg{source}: $!";
2359
2360	$md5 = Digest::MD5::md5_hex $buf;
2361	}
2362
2363	my $dbmeta = db_get "$id/meta";
2364	if ($dbmeta ne $meta) {
2365	# changed, we need to process
2366	} else {
2367	# just fetch
2368	}
2369
2370
2371	}
2372
2373	#############################################################################
2374	# the server's init and main functions	2709	# the server's init and main functions
2375		2710
2376	sub load_facedata($) {	2711	sub load_facedata($) {
2377	my ($path) = @_;	2712	my ($path) = @_;
2378		2713
…		…
2390	{	2725	{
2391	my $faces = $facedata->{faceinfo};	2726	my $faces = $facedata->{faceinfo};
2392		2727
2393	while (my ($face, $info) = each %$faces) {	2728	while (my ($face, $info) = each %$faces) {
2394	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2729	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2395	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2730	cf::face::set_visibility $idx, $info->{visibility};
		2731	cf::face::set_magicmap $idx, $info->{magicmap};
2396	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2732	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2397	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2733	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2398	Coro::cede;	2734
		2735	cf::cede_to_tick;
2399	}	2736	}
2400		2737
2401	while (my ($face, $info) = each %$faces) {	2738	while (my ($face, $info) = each %$faces) {
2402	next unless $info->{smooth};	2739	next unless $info->{smooth};
2403	my $idx = cf::face::find $face	2740	my $idx = cf::face::find $face
2404	or next;	2741	or next;
2405	if (my $smooth = cf::face::find $info->{smooth}) {	2742	if (my $smooth = cf::face::find $info->{smooth}) {
		2743	cf::face::set_smooth $idx, $smooth;
2406	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2744	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2407	} else {	2745	} else {
2408	warn "smooth face '$info->{smooth}' not found for face '$face'";	2746	warn "smooth face '$info->{smooth}' not found for face '$face'";
2409	}	2747	}
2410	Coro::cede;	2748
		2749	cf::cede_to_tick;
2411	}	2750	}
2412	}	2751	}
2413		2752
2414	{	2753	{
2415	my $anims = $facedata->{animinfo};	2754	my $anims = $facedata->{animinfo};
2416		2755
2417	while (my ($anim, $info) = each %$anims) {	2756	while (my ($anim, $info) = each %$anims) {
2418	cf::anim::set $anim, $info->{frames}, $info->{facings};	2757	cf::anim::set $anim, $info->{frames}, $info->{facings};
2419	Coro::cede;	2758	cf::cede_to_tick;
2420	}	2759	}
2421		2760
2422	cf::anim::invalidate_all; # d'oh	2761	cf::anim::invalidate_all; # d'oh
2423	}	2762	}
2424		2763
		2764	{
		2765	# TODO: for gcfclient pleasure, we should give resources
		2766	# that gcfclient doesn't grok a >10000 face index.
		2767	my $res = $facedata->{resource};
		2768	my $enc = JSON::XS->new->utf8->canonical;
		2769
		2770	while (my ($name, $info) = each %$res) {
		2771	my $meta = $enc->encode ({
		2772	name => $name,
		2773	type => $info->{type},
		2774	copyright => $info->{copyright}, #TODO#
		2775	});
		2776	my $data = pack "(w/a*)*", $meta, $info->{data};
		2777	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2778
		2779	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2780	cf::face::set_type $idx, 1;
		2781	cf::face::set_data $idx, 0, $data, $chk;
		2782
		2783	cf::cede_to_tick;
		2784	}
		2785	}
		2786
2425	1	2787	1
2426	}	2788	}
2427		2789
		2790	sub reload_regions {
		2791	load_resource_file "$MAPDIR/regions"
		2792	or die "unable to load regions file\n";
		2793
		2794	for (cf::region::list) {
		2795	$_->{match} = qr/$_->{match}/
		2796	if exists $_->{match};
		2797	}
		2798	}
		2799
2428	sub reload_facedata {	2800	sub reload_facedata {
2429	load_facedata sprintf "%s/facedata", cf::datadir	2801	load_facedata "$DATADIR/facedata"
2430	or die "unable to load facedata\n";	2802	or die "unable to load facedata\n";
2431	}	2803	}
2432		2804
2433	sub reload_regions {
2434	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2435	or die "unable to load regions file\n";
2436	}
2437
2438	sub reload_archetypes {	2805	sub reload_archetypes {
2439	load_resource_file sprintf "%s/archetypes", cf::datadir	2806	load_resource_file "$DATADIR/archetypes"
2440	or die "unable to load archetypes\n";	2807	or die "unable to load archetypes\n";
		2808	#d# NEED to laod twice to resolve forward references
		2809	# this really needs to be done in an extra post-pass
		2810	# (which needs to be synchronous, so solve it differently)
		2811	load_resource_file "$DATADIR/archetypes"
		2812	or die "unable to load archetypes\n";
2441	}	2813	}
2442		2814
2443	sub reload_treasures {	2815	sub reload_treasures {
2444	load_resource_file sprintf "%s/treasures", cf::datadir	2816	load_resource_file "$DATADIR/treasures"
2445	or die "unable to load treasurelists\n";	2817	or die "unable to load treasurelists\n";
2446	}	2818	}
2447		2819
2448	sub reload_resources {	2820	sub reload_resources {
2449	warn "reloading resource files...\n";	2821	warn "reloading resource files...\n";
2450		2822
2451	reload_regions;	2823	reload_regions;
2452	reload_facedata;	2824	reload_facedata;
		2825	#reload_archetypes;#d#
2453	reload_archetypes;	2826	reload_archetypes;
2454	reload_treasures;	2827	reload_treasures;
2455		2828
2456	warn "finished reloading resource files\n";	2829	warn "finished reloading resource files\n";
2457	}	2830	}
…		…
2459	sub init {	2832	sub init {
2460	reload_resources;	2833	reload_resources;
2461	}	2834	}
2462		2835
2463	sub cfg_load {	2836	sub cfg_load {
2464	open my $fh, "<:utf8", cf::confdir . "/config"	2837	open my $fh, "<:utf8", "$CONFDIR/config"
2465	or return;	2838	or return;
2466		2839
2467	local $/;	2840	local $/;
2468	*CFG = YAML::Syck::Load <$fh>;	2841	*CFG = YAML::Syck::Load <$fh>;
2469		2842
…		…
2514	},	2887	},
2515	);	2888	);
2516	}	2889	}
2517	}	2890	}
2518		2891
		2892	sub write_runtime {
		2893	my $runtime = "$LOCALDIR/runtime";
		2894
		2895	# first touch the runtime file to show we are still running:
		2896	# the fsync below can take a very very long time.
		2897
		2898	IO::AIO::aio_utime $runtime, undef, undef;
		2899
		2900	my $guard = cf::lock_acquire "write_runtime";
		2901
		2902	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2903	or return;
		2904
		2905	my $value = $cf::RUNTIME + 90 + 10;
		2906	# 10 is the runtime save interval, for a monotonic clock
		2907	# 60 allows for the watchdog to kill the server.
		2908
		2909	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2910	and return;
		2911
		2912	# always fsync - this file is important
		2913	aio_fsync $fh
		2914	and return;
		2915
		2916	# touch it again to show we are up-to-date
		2917	aio_utime $fh, undef, undef;
		2918
		2919	close $fh
		2920	or return;
		2921
		2922	aio_rename "$runtime~", $runtime
		2923	and return;
		2924
		2925	warn "runtime file written.\n";
		2926
		2927	1
		2928	}
		2929
2519	sub emergency_save() {	2930	sub emergency_save() {
2520	my $freeze_guard = cf::freeze_mainloop;	2931	my $freeze_guard = cf::freeze_mainloop;
2521		2932
2522	warn "enter emergency perl save\n";	2933	warn "enter emergency perl save\n";
2523		2934
…		…
2598	%EXT_CORO = ();	3009	%EXT_CORO = ();
2599		3010
2600	warn "removing commands";	3011	warn "removing commands";
2601	%COMMAND = ();	3012	%COMMAND = ();
2602		3013
2603	warn "removing ext commands";	3014	warn "removing ext/exti commands";
2604	%EXTCMD = ();	3015	%EXTCMD = ();
		3016	%EXTICMD = ();
2605		3017
2606	warn "unloading/nuking all extensions";	3018	warn "unloading/nuking all extensions";
2607	for my $pkg (@EXTS) {	3019	for my $pkg (@EXTS) {
2608	warn "... unloading $pkg";	3020	warn "... unloading $pkg";
2609		3021
…		…
2639	Symbol::delete_package "safe::$_"	3051	Symbol::delete_package "safe::$_"
2640	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3052	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2641		3053
2642	warn "unloading cf.pm \"a bit\"";	3054	warn "unloading cf.pm \"a bit\"";
2643	delete $INC{"cf.pm"};	3055	delete $INC{"cf.pm"};
		3056	delete $INC{"cf/pod.pm"};
2644		3057
2645	# don't, removes xs symbols, too,	3058	# don't, removes xs symbols, too,
2646	# and global variables created in xs	3059	# and global variables created in xs
2647	#Symbol::delete_package __PACKAGE__;	3060	#Symbol::delete_package __PACKAGE__;
2648		3061
…		…
2726	my $signal = new Coro::Signal;	3139	my $signal = new Coro::Signal;
2727	push @WAIT_FOR_TICK_BEGIN, $signal;	3140	push @WAIT_FOR_TICK_BEGIN, $signal;
2728	$signal->wait;	3141	$signal->wait;
2729	}	3142	}
2730		3143
		3144	my $min = 1e6;#d#
		3145	my $avg = 10;
2731	$TICK_WATCHER = Event->timer (	3146	$TICK_WATCHER = Event->timer (
2732	reentrant => 0,	3147	reentrant => 0,
2733	parked => 1,	3148	parked => 1,
2734	prio => 0,	3149	prio => 0,
2735	at => $NEXT_TICK || $TICK,	3150	at => $NEXT_TICK || $TICK,
…		…
2739	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3154	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2740	unless ++$bug_warning > 10;	3155	unless ++$bug_warning > 10;
2741	return;	3156	return;
2742	}	3157	}
2743		3158
2744	$NOW = Event::time;	3159	$NOW = $tick_start = Event::time;
2745		3160
2746	cf::server_tick; # one server iteration	3161	cf::server_tick; # one server iteration
		3162
		3163	0 && sync_job {#d#
		3164	for(1..10) {
		3165	my $t = Event::time;
		3166	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3167	or die;
		3168
		3169	$map->width (50);
		3170	$map->height (50);
		3171	$map->alloc;
		3172	$map->_load_objects ("/tmp/x.map", 1);
		3173	my $t = Event::time - $t;
		3174
		3175	#next unless $t < 0.0013;#d#
		3176	if ($t < $min) {
		3177	$min = $t;
		3178	}
		3179	$avg = $avg * 0.99 + $t * 0.01;
		3180	}
		3181	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3182	exit 0;
		3183	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3184	};
2747		3185
2748	$RUNTIME += $TICK;	3186	$RUNTIME += $TICK;
2749	$NEXT_TICK += $TICK;	3187	$NEXT_TICK += $TICK;
2750		3188
2751	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3189	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2757	}	3195	}
2758		3196
2759	# my $AFTER = Event::time;	3197	# my $AFTER = Event::time;
2760	# warn $AFTER - $NOW;#d#	3198	# warn $AFTER - $NOW;#d#
2761		3199
		3200	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3201	$sig->send;
		3202	}
		3203	while (my $sig = shift @WAIT_FOR_TICK) {
		3204	$sig->send;
		3205	}
		3206
		3207	$NOW = Event::time;
		3208
2762	# if we are delayed by four ticks or more, skip them all	3209	# if we are delayed by four ticks or more, skip them all
2763	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3210	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2764		3211
2765	$TICK_WATCHER->at ($NEXT_TICK);	3212	$TICK_WATCHER->at ($NEXT_TICK);
2766	$TICK_WATCHER->start;	3213	$TICK_WATCHER->start;
2767		3214
2768	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3215	$LOAD = ($NOW - $tick_start) / $TICK;
2769	$sig->send;	3216	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2770	}
2771	while (my $sig = shift @WAIT_FOR_TICK) {
2772	$sig->send;
2773	}
2774		3217
2775	_post_tick;	3218	_post_tick;
		3219
		3220
2776	},	3221	},
2777	);	3222	);
2778		3223
2779	{	3224	{
2780	BDB::max_poll_time $TICK * 0.1;	3225	BDB::max_poll_time $TICK * 0.1;
…		…
2808		3253
2809	cf::sync_job {	3254	cf::sync_job {
2810	eval {	3255	eval {
2811	BDB::db_env_open	3256	BDB::db_env_open
2812	$DB_ENV,	3257	$DB_ENV,
2813	$BDB_ENV_DIR,	3258	$BDBDIR,
2814	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3259	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2815	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3260	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2816	0666;	3261	0666;
2817		3262
2818	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3263	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2819		3264
2820	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3265	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2821	$DB_ENV->set_lk_detect;	3266	$DB_ENV->set_lk_detect;
2822	};	3267	};
2823		3268
…		…
2839	prio => 6,	3284	prio => 6,
2840	cb => \&IO::AIO::poll_cb,	3285	cb => \&IO::AIO::poll_cb,
2841	);	3286	);
2842	}	3287	}
2843		3288
		3289	my $_log_backtrace;
		3290
		3291	sub _log_backtrace {
		3292	my ($msg, @addr) = @_;
		3293
		3294	$msg =~ s/\n//;
		3295
		3296	# limit the # of concurrent backtraces
		3297	if ($_log_backtrace < 2) {
		3298	++$_log_backtrace;
		3299	async {
		3300	my @bt = fork_call {
		3301	@addr = map { sprintf "%x", $_ } @addr;
		3302	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3303	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3304	or die "addr2line: $!";
		3305
		3306	my @funcs;
		3307	my @res = <$fh>;
		3308	chomp for @res;
		3309	while (@res) {
		3310	my ($func, $line) = splice @res, 0, 2, ();
		3311	push @funcs, "[$func] $line";
		3312	}
		3313
		3314	@funcs
		3315	};
		3316
		3317	LOG llevInfo, "[ABT] $msg\n";
		3318	LOG llevInfo, "[ABT] $_\n" for @bt;
		3319	--$_log_backtrace;
		3320	};
		3321	} else {
		3322	LOG llevInfo, "[ABT] $msg\n";
		3323	LOG llevInfo, "[ABT] [suppressed]\n";
		3324	}
		3325	}
		3326
2844	# load additional modules	3327	# load additional modules
2845	use cf::pod;	3328	use cf::pod;
2846		3329
2847	END { cf::emergency_save }	3330	END { cf::emergency_save }
2848		3331

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