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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 1.311 by root, Fri Jul 20 16:11:10 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.
…		…
139		167
140	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
141	returns directly I<after> the tick processing (and consequently, can only wake one process	169	returns directly I<after> the tick processing (and consequently, can only wake one process
142	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
143		171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
		177
144	=back	178	=back
145		179
146	=cut	180	=cut
147		181
148	BEGIN {	182	BEGIN {
149	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
150	my $msg = join "", @_;	184	my $msg = join "", @_;
151	utf8::encode $msg;
152		185
153	$msg .= "\n"	186	$msg .= "\n"
154	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
155		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
156	LOG llevError, $msg;	192	LOG llevError, $msg;
157	};	193	};
158	}	194	}
159		195
160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
162	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
163	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
164	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
165	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
166		203
167	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
168	# within the Safe compartment.	205	# within the Safe compartment.
169	for my $pkg (qw(	206	for my $pkg (qw(
170	cf::global cf::attachable	207	cf::global cf::attachable
…		…
178	}	215	}
179		216
180	$Event::DIED = sub {	217	$Event::DIED = sub {
181	warn "error in event callback: @_";	218	warn "error in event callback: @_";
182	};	219	};
		220
		221	#############################################################################
183		222
184	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
185		224
186	=over 4	225	=over 4
187		226
…		…
206	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
207	$d	246	$d
208	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
209	}	248	}
210		249
211	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
212
213	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
214		251
215	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
216		253
217	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
218		255
219	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
		257
		258	=cut
		259
		260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		261
		262	sub to_json ($) { $json_coder->encode ($_[0]) }
		263	sub from_json ($) { $json_coder->decode ($_[0]) }
220		264
221	=item cf::lock_wait $string	265	=item cf::lock_wait $string
222		266
223	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
224		268
…		…
230	returned.	274	returned.
231		275
232	Lock names should begin with a unique identifier (for example, cf::map::find	276	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
234		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
235	=cut	283	=cut
236		284
237	our %LOCK;	285	our %LOCK;
238		286
239	sub lock_wait($) {	287	sub lock_wait($) {
…		…
256		304
257	Coro::guard {	305	Coro::guard {
258	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
260	}	308	}
		309	}
		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
261	}	315	}
262		316
263	sub freeze_mainloop {	317	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
265		319
…		…
280		334
281	BEGIN { *async = \&Coro::async_pool }	335	BEGIN { *async = \&Coro::async_pool }
282		336
283	=item cf::sync_job { BLOCK }	337	=item cf::sync_job { BLOCK }
284		338
285	The design of crossfire+ requires that the main coro ($Coro::main) is	339	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	340	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	341	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		342	acceptable.
288		343
289	If it must be done, put the blocking parts into C<sync_job>. This will run	344	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	345	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	346	server will be frozen during this time, so the block should either finish
292	fast or be very important.	347	fast or be very important.
…		…
295		350
296	sub sync_job(&) {	351	sub sync_job(&) {
297	my ($job) = @_;	352	my ($job) = @_;
298		353
299	if ($Coro::current == $Coro::main) {	354	if ($Coro::current == $Coro::main) {
		355	my $time = Event::time;
		356
300	# this is the main coro, too bad, we have to block	357	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	358	# till the operation succeeds, freezing the server :/
302		359
303	# TODO: use suspend/resume instead	360	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	361	# (but this is cancel-safe)
…		…
315		372
316	while ($busy) {	373	while ($busy) {
317	Coro::cede or Event::one_event;	374	Coro::cede or Event::one_event;
318	}	375	}
319		376
		377	$time = Event::time - $time;
		378
		379	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		380	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		381
		382	$tick_start += $time; # do not account sync jobs to server load
		383
320	wantarray ? @res : $res[0]	384	wantarray ? @res : $res[0]
321	} else {	385	} else {
322	# we are in another coroutine, how wonderful, everything just works	386	# we are in another coroutine, how wonderful, everything just works
323		387
324	$job->()	388	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	407	$EXT_CORO{$coro+0} = $coro;
344		408
345	$coro	409	$coro
346	}	410	}
347		411
348	sub write_runtime {	412	=item fork_call { }, $args
349	my $guard = cf::lock_acquire "write_runtime";
350		413
351	my $runtime = cf::localdir . "/runtime";	414	Executes the given code block with the given arguments in a seperate
		415	process, returning the results. Everything must be serialisable with
		416	Coro::Storable. May, of course, block. Note that the executed sub may
		417	never block itself or use any form of Event handling.
352		418
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	419	=cut
354	or return;
355		420
356	my $value = $cf::RUNTIME + 90 + 10;	421	sub _store_scalar {
357	# 10 is the runtime save interval, for a monotonic clock	422	open my $fh, ">", \my $buf
358	# 60 allows for the watchdog to kill the server.	423	or die "fork_call: cannot open fh-to-buf in child : $!";
359		424	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	425	close $fh;
368	or return;
369		426
370	aio_rename "$runtime~", $runtime	427	$buf
371	and return;	428	}
372		429
		430	sub fork_call(&@) {
		431	my ($cb, @args) = @_;
		432
		433	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		434	# or die "socketpair: $!";
		435	pipe my $fh1, my $fh2
		436	or die "pipe: $!";
		437
		438	if (my $pid = fork) {
		439	close $fh2;
		440
		441	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		442	warn "pst<$res>" unless $res =~ /^pst/;
		443	$res = Coro::Storable::thaw $res;
		444
		445	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		446
		447	Carp::confess $$res unless "ARRAY" eq ref $res;
		448
		449	return wantarray ? @$res : $res->[-1];
		450	} else {
		451	reset_signals;
		452	local $SIG{__WARN__};
		453	local $SIG{__DIE__};
		454	# just in case, this hack effectively disables event
		455	# in the child. cleaner and slower would be canceling all watchers,
		456	# but this works for the time being.
		457	local $Coro::idle;
		458	$Coro::current->prio (Coro::PRIO_MAX);
		459
		460	eval {
		461	close $fh1;
		462
		463	my @res = eval { $cb->(@args) };
		464
		465	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		466	close $fh2;
		467	};
		468
		469	warn $@ if $@;
		470	_exit 0;
373	1	471	}
		472	}
		473
		474	=item $value = cf::db_get $family => $key
		475
		476	Returns a single value from the environment database.
		477
		478	=item cf::db_put $family => $key => $value
		479
		480	Stores the given C<$value> in the family. It can currently store binary
		481	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		482
		483	=cut
		484
		485	our $DB;
		486
		487	sub db_init {
		488	unless ($DB) {
		489	$DB = BDB::db_create $DB_ENV;
		490
		491	cf::sync_job {
		492	eval {
		493	$DB->set_flags (BDB::CHKSUM);
		494
		495	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		496	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		497	cf::cleanup "db_open(db): $!" if $!;
		498	};
		499	cf::cleanup "db_open(db): $@" if $@;
		500	};
		501	}
		502	}
		503
		504	sub db_get($$) {
		505	my $key = "$_[0]/$_[1]";
		506
		507	cf::sync_job {
		508	BDB::db_get $DB, undef, $key, my $data;
		509
		510	$! ? ()
		511	: $data
		512	}
		513	}
		514
		515	sub db_put($$$) {
		516	BDB::dbreq_pri 4;
		517	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		518	}
		519
		520	=item cf::cache $id => [$paths...], $processversion => $process
		521
		522	Generic caching function that returns the value of the resource $id,
		523	caching and regenerating as required.
		524
		525	This function can block.
		526
		527	=cut
		528
		529	sub cache {
		530	my ($id, $src, $processversion, $process) = @_;
		531
		532	my $meta =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	aio_stat $_
		537	and Carp::croak "$_: $!";
		538
		539	($_, (stat _)[7,9])
		540	} @$src;
		541
		542	my $dbmeta = db_get cache => "$id/meta";
		543	if ($dbmeta ne $meta) {
		544	# changed, we may need to process
		545
		546	my @data;
		547	my $md5;
		548
		549	for (0 .. $#$src) {
		550	0 <= aio_load $src->[$_], $data[$_]
		551	or Carp::croak "$src->[$_]: $!";
		552	}
		553
		554	# if processing is expensive, check
		555	# checksum first
		556	if (1) {
		557	$md5 =
		558	join "\x00",
		559	$processversion,
		560	map {
		561	Coro::cede;
		562	($src->[$_], Digest::MD5::md5_hex $data[$_])
		563	} 0.. $#$src;
		564
		565
		566	my $dbmd5 = db_get cache => "$id/md5";
		567	if ($dbmd5 eq $md5) {
		568	db_put cache => "$id/meta", $meta;
		569
		570	return db_get cache => "$id/data";
		571	}
		572	}
		573
		574	my $t1 = Time::HiRes::time;
		575	my $data = $process->(\@data);
		576	my $t2 = Time::HiRes::time;
		577
		578	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		579
		580	db_put cache => "$id/data", $data;
		581	db_put cache => "$id/md5" , $md5;
		582	db_put cache => "$id/meta", $meta;
		583
		584	return $data;
		585	}
		586
		587	db_get cache => "$id/data"
374	}	588	}
375		589
376	=item cf::datalog type => key => value, ...	590	=item cf::datalog type => key => value, ...
377		591
378	Log a datalog packet of the given type with the given key-value pairs.	592	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")	610	attach callbacks/event handlers (a collection of which is called an "attachment")
397	to it. All such attachable objects support the following methods.	611	to it. All such attachable objects support the following methods.
398		612
399	In the following description, CLASS can be any of C<global>, C<object>	613	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	614	C<player>, C<client> or C<map> (i.e. the attachable objects in
401	crossfire+).	615	Crossfire TRT).
402		616
403	=over 4	617	=over 4
404		618
405	=item $attachable->attach ($attachment, key => $value...)	619	=item $attachable->attach ($attachment, key => $value...)
406		620
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	783	$registry = $CB_TYPE[$object_type] ||= [];
570		784
571	} elsif ($type eq "subtype") {	785	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	786	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	787	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	788	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		789
576	} elsif ($type eq "package") {	790	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	791	my $pkg = shift @arg;
578		792
579	while (my ($name, $id) = each %cb_id) {	793	while (my ($name, $id) = each %cb_id) {
…		…
608	_attach $registry, $klass, @attach;	822	_attach $registry, $klass, @attach;
609	}	823	}
610		824
611	$obj->{$name} = \%arg;	825	$obj->{$name} = \%arg;
612	} else {	826	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	827	warn "object uses attachment '$name' which is not available, postponing.\n";
614	}	828	}
615		829
616	$obj->{_attachment}{$name} = undef;	830	$obj->{_attachment}{$name} = undef;
617	}	831	}
618		832
…		…
620	if (ref $_[0]) {	834	if (ref $_[0]) {
621	_object_attach @_;	835	_object_attach @_;
622	} else {	836	} else {
623	_attach shift->_attach_registry, @_;	837	_attach shift->_attach_registry, @_;
624	}	838	}
		839	_recalc_want;
625	};	840	};
626		841
627	# all those should be optimised	842	# all those should be optimised
628	sub cf::attachable::detach {	843	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	847	delete $obj->{_attachment}{$name};
633	reattach ($obj);	848	reattach ($obj);
634	} else {	849	} else {
635	Carp::croak "cannot, currently, detach class attachments";	850	Carp::croak "cannot, currently, detach class attachments";
636	}	851	}
		852	_recalc_want;
637	};	853	};
638		854
639	sub cf::attachable::attached {	855	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	856	my ($obj, $name) = @_;
641		857
…		…
656	";	872	";
657	die if $@;	873	die if $@;
658	}	874	}
659		875
660	our $override;	876	our $override;
661	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	877	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
662		878
663	sub override {	879	sub override {
664	$override = 1;	880	$override = 1;
665	@invoke_results = ();	881	@INVOKE_RESULTS = (@_);
666	}	882	}
667		883
668	sub do_invoke {	884	sub do_invoke {
669	my $event = shift;	885	my $event = shift;
670	my $callbacks = shift;	886	my $callbacks = shift;
671		887
672	@invoke_results = ();	888	@INVOKE_RESULTS = ();
673		889
674	local $override;	890	local $override;
675		891
676	for (@$callbacks) {	892	for (@$callbacks) {
677	eval { &{$_->[1]} };	893	eval { &{$_->[1]} };
…		…
694		910
695	Generate an object-specific event with the given arguments.	911	Generate an object-specific event with the given arguments.
696		912
697	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	913	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
698	removed in future versions), and there is no public API to access override	914	removed in future versions), and there is no public API to access override
699	results (if you must, access C<@cf::invoke_results> directly).	915	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
700		916
701	=back	917	=back
702		918
703	=cut	919	=cut
704		920
…		…
814	or return;	1030	or return;
815	$av = eval { (Storable::thaw $av)->{objs} };	1031	$av = eval { (Storable::thaw $av)->{objs} };
816	}	1032	}
817		1033
818	warn sprintf "loading %s (%d)\n",	1034	warn sprintf "loading %s (%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1035	$filename, length $data, scalar @{$av || []};
820	return ($data, $av);	1036	return ($data, $av);
821	}	1037	}
		1038
		1039	=head2 COMMAND CALLBACKS
		1040
		1041	=over 4
		1042
		1043	=cut
822		1044
823	#############################################################################	1045	#############################################################################
824	# command handling &c	1046	# command handling &c
825		1047
826	=item cf::register_command $name => \&callback($ob,$args);	1048	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1061	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1062	}
841		1063
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1064	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1065
844	Register a callbackf ro execution when the client sends an extcmd packet.	1066	Register a callback for execution when the client sends an (synchronous)
		1067	extcmd packet. Ext commands will be processed in the order they are
		1068	received by the server, like other user commands. The first argument is
		1069	the logged-in player. Ext commands can only be processed after a player
		1070	has logged in successfully.
845		1071
846	If the callback returns something, it is sent back as if reply was being	1072	If the callback returns something, it is sent back as if reply was being
847	called.	1073	called.
848		1074
		1075	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1076
		1077	Register a callback for execution when the client sends an (asynchronous)
		1078	exticmd packet. Exti commands are processed by the server as soon as they
		1079	are received, i.e. out of order w.r.t. other commands. The first argument
		1080	is a client socket. Exti commands can be received anytime, even before
		1081	log-in.
		1082
		1083	If the callback returns something, it is sent back as if reply was being
		1084	called.
		1085
849	=cut	1086	=cut
850		1087
851	sub register_extcmd {	1088	sub register_extcmd {
852	my ($name, $cb) = @_;	1089	my ($name, $cb) = @_;
853		1090
854	$EXTCMD{$name} = $cb;	1091	$EXTCMD{$name} = $cb;
		1092	}
		1093
		1094	sub register_exticmd {
		1095	my ($name, $cb) = @_;
		1096
		1097	$EXTICMD{$name} = $cb;
855	}	1098	}
856		1099
857	cf::player->attach (	1100	cf::player->attach (
858	on_command => sub {	1101	on_command => sub {
859	my ($pl, $name, $params) = @_;	1102	my ($pl, $name, $params) = @_;
…		…
868	cf::override;	1111	cf::override;
869	},	1112	},
870	on_extcmd => sub {	1113	on_extcmd => sub {
871	my ($pl, $buf) = @_;	1114	my ($pl, $buf) = @_;
872		1115
873	my $msg = eval { from_json $buf };	1116	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
874		1117
875	if (ref $msg) {	1118	if (ref $msg) {
876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1119	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
877	if (my %reply = $cb->($pl, $msg)) {	1120	if (my %reply = $cb->($pl, $msg)) {
878	$pl->ext_reply ($msg->{msgid}, %reply);	1121	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
884		1127
885	cf::override;	1128	cf::override;
886	},	1129	},
887	);	1130	);
888		1131
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 {	1132	sub load_extensions {
		1133	cf::sync_job {
		1134	my %todo;
		1135
924	for my $ext (<$LIBDIR/*.ext>) {	1136	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1137	next unless -r $path;
926	eval {	1138
927	load_extension $ext;	1139	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1140	my $base = $1;
		1141	my $pkg = $1;
		1142	$pkg =~ s/[^[:word:]]/_/g;
		1143	$pkg = "ext::$pkg";
		1144
		1145	open my $fh, "<:utf8", $path
		1146	or die "$path: $!";
		1147
		1148	my $source = do { local $/; <$fh> };
		1149
		1150	my %ext = (
		1151	path => $path,
		1152	base => $base,
		1153	pkg => $pkg,
		1154	);
		1155
		1156	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1157	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1158
		1159	$ext{source} =
		1160	"package $pkg; use strict; use utf8;\n"
		1161	. "#line 1 \"$path\"\n{\n"
		1162	. $source
		1163	. "\n};\n1";
		1164
		1165	$todo{$base} = \%ext;
		1166	}
		1167
		1168	my %done;
		1169	while (%todo) {
		1170	my $progress;
		1171
		1172	while (my ($k, $v) = each %todo) {
		1173	for (split /,\s*/, $v->{meta}{depends}) {
		1174	goto skip
		1175	unless exists $done{$_};
		1176	}
		1177
		1178	warn "... loading '$k' into '$v->{pkg}'\n";
		1179
		1180	unless (eval $v->{source}) {
		1181	my $msg = $@ ? "$v->{path}: $@\n"
		1182	: "$v->{base}: extension inactive.\n";
		1183
		1184	if (exists $v->{meta}{mandatory}) {
		1185	warn $msg;
		1186	warn "mandatory extension failed to load, exiting.\n";
		1187	exit 1;
		1188	}
		1189
		1190	warn $msg;
		1191	}
		1192
		1193	$done{$k} = delete $todo{$k};
		1194	push @EXTS, $v->{pkg};
		1195	$progress = 1;
928	1	1196	}
929	} or warn "$ext not loaded: $@";	1197
		1198	skip:
		1199	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1200	unless $progress;
		1201	}
930	}	1202	};
931	}	1203	}
932		1204
933	#############################################################################	1205	#############################################################################
934		1206
		1207	=back
		1208
935	=head2 CORE EXTENSIONS	1209	=head2 CORE EXTENSIONS
936		1210
937	Functions and methods that extend core crossfire objects.	1211	Functions and methods that extend core crossfire objects.
938		1212
939	=cut	1213	=cut
…		…
951	Returns the given player object, loading it if necessary (might block).	1225	Returns the given player object, loading it if necessary (might block).
952		1226
953	=cut	1227	=cut
954		1228
955	sub playerdir($) {	1229	sub playerdir($) {
956	cf::localdir	1230	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1231	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1232	}
962		1233
963	sub path($) {	1234	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1235	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
1084	while and may block, so not sync_job-capable, ever.	1355	while and may block, so not sync_job-capable, ever.
1085		1356
1086	=cut	1357	=cut
1087		1358
1088	sub list_logins {	1359	sub list_logins {
1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1360	my $dirs = aio_readdir $PLAYERDIR
1090	or return [];	1361	or return [];
1091		1362
1092	my @logins;	1363	my @logins;
1093		1364
1094	for my $login (@$dirs) {	1365	for my $login (@$dirs) {
…		…
1129	}	1400	}
1130		1401
1131	\@paths	1402	\@paths
1132	}	1403	}
1133		1404
		1405	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1406
		1407	Expand crossfire pod fragments into protocol xml.
		1408
		1409	=cut
		1410
		1411	sub expand_cfpod {
		1412	((my $self), (local $_)) = @_;
		1413
		1414	# escape & and <
		1415	s/&/&amp;/g;
		1416	s/(?<![BIUGH])</&lt;/g;
		1417
		1418	# this is buggy, it needs to properly take care of nested <'s
		1419
		1420	1 while
		1421	# replace B<>, I<>, U<> etc.
		1422	s/B<([^\>]*)>/<b>$1<\/b>/
		1423	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1424	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1425	# replace G<male|female> tags
		1426	|| s{G<([^>|]*)\|([^>]*)>}{
		1427	$self->gender ? $2 : $1
		1428	}ge
		1429	# replace H<hint text>
		1430	|| s{H<([^\>]*)>}
		1431	{
		1432	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1433	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1434	"")
		1435	[$self->{hintmode}]
		1436	}ge;
		1437
		1438	# create single paragraphs (very hackish)
		1439	s/(?<=\S)\n(?=\w)/ /g;
		1440
		1441	# compress some whitespace
		1442	s/\s+\n/\n/g; # ws line-ends
		1443	s/\n\n+/\n/g; # double lines
		1444	s/^\n+//; # beginning lines
		1445	s/\n+$//; # ending lines
		1446
		1447	$_
		1448	}
		1449
		1450	sub hintmode {
		1451	$_[0]{hintmode} = $_[1] if @_ > 1;
		1452	$_[0]{hintmode}
		1453	}
		1454
1134	=item $player->ext_reply ($msgid, %msg)	1455	=item $player->ext_reply ($msgid, %msg)
1135		1456
1136	Sends an ext reply to the player.	1457	Sends an ext reply to the player.
1137		1458
1138	=cut	1459	=cut
1139		1460
1140	sub ext_reply($$%) {	1461	sub ext_reply($$%) {
1141	my ($self, $id, %msg) = @_;	1462	my ($self, $id, %msg) = @_;
1142		1463
1143	$msg{msgid} = $id;	1464	$msg{msgid} = $id;
1144		1465	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1145	$self->send ("ext " . cf::to_json \%msg);
1146	}	1466	}
1147		1467
1148	=item $player->ext_event ($type, %msg)	1468	=item $player->ext_event ($type, %msg)
1149		1469
1150	Sends an ext event to the client.	1470	Sends an ext event to the client.
…		…
1165		1485
1166	package cf::region;	1486	package cf::region;
1167		1487
1168	=item cf::region::find_by_path $path	1488	=item cf::region::find_by_path $path
1169		1489
1170	Tries to decuce the probable region for a map knowing only its path.	1490	Tries to decuce the likely region for a map knowing only its path.
1171		1491
1172	=cut	1492	=cut
1173		1493
1174	sub find_by_path($) {	1494	sub find_by_path($) {
1175	my ($path) = @_;	1495	my ($path) = @_;
1176		1496
1177	my ($match, $specificity);	1497	my ($match, $specificity);
1178		1498
1179	for my $region (list) {	1499	for my $region (list) {
1180	if ($region->match && $path =~ $region->match) {	1500	if ($region->{match} && $path =~ $region->{match}) {
1181	($match, $specificity) = ($region, $region->specificity)	1501	($match, $specificity) = ($region, $region->specificity)
1182	if $region->specificity > $specificity;	1502	if $region->specificity > $specificity;
1183	}	1503	}
1184	}	1504	}
1185		1505
…		…
1249	my ($self, $merge) = @_;	1569	my ($self, $merge) = @_;
1250		1570
1251	# we have to keep some variables in memory intact	1571	# we have to keep some variables in memory intact
1252	local $self->{path};	1572	local $self->{path};
1253	local $self->{load_path};	1573	local $self->{load_path};
1254	local $self->{deny_save};
1255	local $self->{deny_reset};
1256		1574
1257	$self->SUPER::thawer_merge ($merge);	1575	$self->SUPER::thawer_merge ($merge);
1258	}	1576	}
1259		1577
1260	sub normalise {	1578	sub normalise {
…		…
1307	$self->init; # pass $1 etc.	1625	$self->init; # pass $1 etc.
1308	return $self;	1626	return $self;
1309	}	1627	}
1310	}	1628	}
1311		1629
1312	Carp::carp "unable to resolve path '$path' (base '$base').";	1630	Carp::cluck "unable to resolve path '$path' (base '$base').";
1313	()	1631	()
1314	}	1632	}
1315		1633
1316	sub init {	1634	sub init {
1317	my ($self) = @_;	1635	my ($self) = @_;
…		…
1332		1650
1333	# the original (read-only) location	1651	# the original (read-only) location
1334	sub load_path {	1652	sub load_path {
1335	my ($self) = @_;	1653	my ($self) = @_;
1336		1654
1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1655	"$MAPDIR/$self->{path}.map"
1338	}	1656	}
1339		1657
1340	# the temporary/swap location	1658	# the temporary/swap location
1341	sub save_path {	1659	sub save_path {
1342	my ($self) = @_;	1660	my ($self) = @_;
1343		1661
1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1662	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1663	"$TMPDIR/$path.map"
1346	}	1664	}
1347		1665
1348	# the unique path, undef == no special unique path	1666	# the unique path, undef == no special unique path
1349	sub uniq_path {	1667	sub uniq_path {
1350	my ($self) = @_;	1668	my ($self) = @_;
1351		1669
1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1670	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1671	"$UNIQUEDIR/$path"
1354	}	1672	}
1355		1673
1356	# and all this just because we cannot iterate over	1674	# and all this just because we cannot iterate over
1357	# all maps in C++...	1675	# all maps in C++...
1358	sub change_all_map_light {	1676	sub change_all_map_light {
1359	my ($change) = @_;	1677	my ($change) = @_;
1360		1678
1361	$_->change_map_light ($change)	1679	$_->change_map_light ($change)
1362	for grep $_->outdoor, values %cf::MAP;	1680	for grep $_->outdoor, values %cf::MAP;
		1681	}
		1682
		1683	sub decay_objects {
		1684	my ($self) = @_;
		1685
		1686	return if $self->{deny_reset};
		1687
		1688	$self->do_decay_objects;
1363	}	1689	}
1364		1690
1365	sub unlink_save {	1691	sub unlink_save {
1366	my ($self) = @_;	1692	my ($self) = @_;
1367		1693
…		…
1425	$self->load_header_orig	1751	$self->load_header_orig
1426	or return;	1752	or return;
1427	$self->prepare_orig;	1753	$self->prepare_orig;
1428	}	1754	}
1429		1755
		1756	$self->{deny_reset} = 1
		1757	if $self->no_reset;
		1758
1430	$self->default_region (cf::region::find_by_path $self->{path})	1759	$self->default_region (cf::region::find_by_path $self->{path})
1431	unless $self->default_region;	1760	unless $self->default_region;
1432		1761
1433	1	1762	1
1434	}	1763	}
…		…
1449	$map->{last_save} = $cf::RUNTIME;	1778	$map->{last_save} = $cf::RUNTIME;
1450		1779
1451	$map->load_header	1780	$map->load_header
1452	or return;	1781	or return;
1453		1782
1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1783	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1455	# doing this can freeze the server in a sync job, obviously	1784	# doing this can freeze the server in a sync job, obviously
1456	#$cf::WAIT_FOR_TICK->wait;	1785	#$cf::WAIT_FOR_TICK->wait;
1457	$map->reset;	1786	$map->reset;
1458	undef $guard;	1787	undef $guard;
1459	return find $path;	1788	return find $path;
…		…
1470	my ($self) = @_;	1799	my ($self) = @_;
1471		1800
1472	local $self->{deny_reset} = 1; # loading can take a long time	1801	local $self->{deny_reset} = 1; # loading can take a long time
1473		1802
1474	my $path = $self->{path};	1803	my $path = $self->{path};
		1804
		1805	{
1475	my $guard = cf::lock_acquire "map_load:$path";	1806	my $guard = cf::lock_acquire "map_load:$path";
1476		1807
1477	return if $self->in_memory != cf::MAP_SWAPPED;	1808	return if $self->in_memory != cf::MAP_SWAPPED;
1478		1809
1479	$self->in_memory (cf::MAP_LOADING);	1810	$self->in_memory (cf::MAP_LOADING);
1480		1811
1481	$self->alloc;	1812	$self->alloc;
1482		1813
1483	$self->pre_load;	1814	$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;	1815	Coro::cede;
1510	$self->set_darkness_map;	1816
		1817	$self->_load_objects ($self->{load_path}, 1)
		1818	or return;
		1819
		1820	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1821	if delete $self->{load_original};
		1822
		1823	if (my $uniq = $self->uniq_path) {
		1824	utf8::encode $uniq;
		1825	if (aio_open $uniq, O_RDONLY, 0) {
		1826	$self->clear_unique_items;
		1827	$self->_load_objects ($uniq, 0);
		1828	}
		1829	}
		1830
		1831	Coro::cede;
		1832	# now do the right thing for maps
		1833	$self->link_multipart_objects;
1511	$self->difficulty ($self->estimate_difficulty)	1834	$self->difficulty ($self->estimate_difficulty)
1512	unless $self->difficulty;	1835	unless $self->difficulty;
1513	Coro::cede;	1836	Coro::cede;
		1837
		1838	unless ($self->{deny_activate}) {
		1839	$self->decay_objects;
		1840	$self->fix_auto_apply;
		1841	$self->update_buttons;
		1842	Coro::cede;
		1843	$self->set_darkness_map;
		1844	Coro::cede;
1514	$self->activate;	1845	$self->activate;
1515	Coro::cede;	1846	}
		1847
		1848	$self->in_memory (cf::MAP_IN_MEMORY);
1516	}	1849	}
1517		1850
1518	$self->post_load;	1851	$self->post_load;
1519	Coro::cede;
1520
1521	$self->in_memory (cf::MAP_IN_MEMORY);
1522	}	1852	}
1523		1853
1524	sub customise_for {	1854	sub customise_for {
1525	my ($self, $ob) = @_;	1855	my ($self, $ob) = @_;
1526		1856
1527	return find "~" . $ob->name . "/" . $self->{path}	1857	return find "~" . $ob->name . "/" . $self->{path}
1528	if $self->per_player;	1858	if $self->per_player;
		1859
		1860	# return find "?party/" . $ob->name . "/" . $self->{path}
		1861	# if $self->per_party;
1529		1862
1530	$self	1863	$self
1531	}	1864	}
1532		1865
1533	# find and load all maps in the 3x3 area around a map	1866	# find and load all maps in the 3x3 area around a map
…		…
1580		1913
1581	undef $MAP_PREFETCH{$path};	1914	undef $MAP_PREFETCH{$path};
1582	$MAP_PREFETCHER ||= cf::async {	1915	$MAP_PREFETCHER ||= cf::async {
1583	while (%MAP_PREFETCH) {	1916	while (%MAP_PREFETCH) {
1584	for my $path (keys %MAP_PREFETCH) {	1917	for my $path (keys %MAP_PREFETCH) {
1585	my $map = find $path	1918	if (my $map = find $path) {
1586	or next;
1587	$map->load;	1919	$map->load;
		1920	}
1588		1921
1589	delete $MAP_PREFETCH{$path};	1922	delete $MAP_PREFETCH{$path};
1590	}	1923	}
1591	}	1924	}
1592	undef $MAP_PREFETCHER;	1925	undef $MAP_PREFETCHER;
…		…
1644		1977
1645	sub reset_at {	1978	sub reset_at {
1646	my ($self) = @_;	1979	my ($self) = @_;
1647		1980
1648	# TODO: safety, remove and allow resettable per-player maps	1981	# 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};	1982	return 1e99 if $self->{deny_reset};
1651		1983
1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1984	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1985	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1654		1986
…		…
1665	my ($self) = @_;	1997	my ($self) = @_;
1666		1998
1667	my $lock = cf::lock_acquire "map_data:$self->{path}";	1999	my $lock = cf::lock_acquire "map_data:$self->{path}";
1668		2000
1669	return if $self->players;	2001	return if $self->players;
1670	return if $self->isa ("ext::map_per_player");#d#
1671		2002
1672	warn "resetting map ", $self->path;#d#	2003	warn "resetting map ", $self->path;
1673		2004
1674	$self->in_memory (cf::MAP_SWAPPED);	2005	$self->in_memory (cf::MAP_SWAPPED);
1675		2006
1676	# need to save uniques path	2007	# need to save uniques path
1677	unless ($self->{deny_save}) {	2008	unless ($self->{deny_save}) {
…		…
1709	$cf::MAP{$self->path} = $self;	2040	$cf::MAP{$self->path} = $self;
1710		2041
1711	$self->reset; # polite request, might not happen	2042	$self->reset; # polite request, might not happen
1712	}	2043	}
1713		2044
		2045	=item $maps = cf::map::tmp_maps
		2046
		2047	Returns an arrayref with all map paths of currently instantiated and saved
		2048	maps. May block.
		2049
		2050	=cut
		2051
		2052	sub tmp_maps() {
		2053	[
		2054	map {
		2055	utf8::decode $_;
		2056	/\.map$/
		2057	? normalise $_
		2058	: ()
		2059	} @{ aio_readdir $TMPDIR or [] }
		2060	]
		2061	}
		2062
		2063	=item $maps = cf::map::random_maps
		2064
		2065	Returns an arrayref with all map paths of currently instantiated and saved
		2066	random maps. May block.
		2067
		2068	=cut
		2069
		2070	sub random_maps() {
		2071	[
		2072	map {
		2073	utf8::decode $_;
		2074	/\.map$/
		2075	? normalise "?random/$_"
		2076	: ()
		2077	} @{ aio_readdir $RANDOMDIR or [] }
		2078	]
		2079	}
		2080
1714	=item cf::map::unique_maps	2081	=item cf::map::unique_maps
1715		2082
1716	Returns an arrayref of paths of all shared maps that have	2083	Returns an arrayref of paths of all shared maps that have
1717	instantiated unique items. May block.	2084	instantiated unique items. May block.
1718		2085
1719	=cut	2086	=cut
1720		2087
1721	sub unique_maps() {	2088	sub unique_maps() {
1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2089	[
1723	or return;	2090	map {
1724
1725	my @paths;
1726
1727	for (@$files) {
1728	utf8::decode $_;	2091	utf8::decode $_;
1729	next if /\.pst$/;	2092	/\.map$/
1730	next unless /^$PATH_SEP/o;	2093	? normalise $_
1731		2094	: ()
1732	push @paths, cf::map::normalise $_;	2095	} @{ aio_readdir $UNIQUEDIR or [] }
1733	}	2096	]
1734
1735	\@paths
1736	}	2097	}
1737		2098
1738	package cf;	2099	package cf;
1739		2100
1740	=back	2101	=back
…		…
1786		2147
1787	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2148	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1788		2149
1789	if ($self->{record_replies}) {	2150	if ($self->{record_replies}) {
1790	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2151	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2152
1791	} else {	2153	} else {
		2154	my $pl = $self->contr;
		2155
		2156	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2157	my $diag = $pl->{npc_dialog};
		2158	$diag->{pl}->ext_reply (
		2159	$diag->{id},
		2160	msgtype => "reply",
		2161	msg => $diag->{pl}->expand_cfpod ($msg),
		2162	add_topics => []
		2163	);
		2164
		2165	} else {
1792	$msg = $npc->name . " says: $msg" if $npc;	2166	$msg = $npc->name . " says: $msg" if $npc;
1793	$self->message ($msg, $flags);	2167	$self->message ($msg, $flags);
		2168	}
1794	}	2169	}
1795	}	2170	}
1796		2171
1797	=item $player_object->may ("access")	2172	=item $player_object->may ("access")
1798		2173
…		…
1846	$self->deactivate_recursive;	2221	$self->deactivate_recursive;
1847		2222
1848	return if UNIVERSAL::isa $self->map, "ext::map_link";	2223	return if UNIVERSAL::isa $self->map, "ext::map_link";
1849		2224
1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2225	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1851	if $self->map;	2226	if $self->map && $self->map->{path} ne "{link}";
1852		2227
1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2228	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1854	}	2229	}
1855		2230
1856	sub cf::object::player::leave_link {	2231	sub cf::object::player::leave_link {
1857	my ($self, $map, $x, $y) = @_;	2232	my ($self, $map, $x, $y) = @_;
		2233
		2234	return unless $self->contr->active;
1858		2235
1859	my $link_pos = delete $self->{_link_pos};	2236	my $link_pos = delete $self->{_link_pos};
1860		2237
1861	unless ($map) {	2238	unless ($map) {
1862	# restore original map position	2239	# restore original map position
…		…
1885		2262
1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2263	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1887	$self->enter_map ($map, $x, $y);	2264	$self->enter_map ($map, $x, $y);
1888	}	2265	}
1889		2266
1890	cf::player->attach (	2267	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1891	on_logout => sub {
1892	my ($pl) = @_;
1893		2268
1894	# abort map switching before logout	2269	Moves the player to the given map-path and coordinates by first freezing
1895	if ($pl->ob->{_link_pos}) {	2270	her, loading and preparing them map, calling the provided $check callback
1896	cf::sync_job {	2271	that has to return the map if sucecssful, and then unfreezes the player on
1897	$pl->ob->leave_link	2272	the new (success) or old (failed) map position. In either case, $done will
1898	};	2273	be called at the end of this process.
1899	}
1900	},
1901	on_login => sub {
1902	my ($pl) = @_;
1903		2274
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	2275	=cut
		2276
		2277	our $GOTOGEN;
1925		2278
1926	sub cf::object::player::goto {	2279	sub cf::object::player::goto {
1927	my ($self, $path, $x, $y) = @_;	2280	my ($self, $path, $x, $y, $check, $done) = @_;
		2281
		2282	# do generation counting so two concurrent goto's will be executed in-order
		2283	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1928		2284
1929	$self->enter_link;	2285	$self->enter_link;
1930		2286
1931	(async {	2287	(async {
1932	my $map = eval {	2288	my $map = eval {
1933	my $map = cf::map::find $path;	2289	my $map = cf::map::find $path;
		2290
		2291	if ($map) {
1934	$map = $map->customise_for ($self) if $map;	2292	$map = $map->customise_for ($self);
		2293	$map = $check->($map) if $check && $map;
		2294	} else {
		2295	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2296	}
		2297
1935	$map	2298	$map
		2299	};
		2300
		2301	if ($@) {
		2302	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2303	LOG llevError | logBacktrace, Carp::longmess $@;
1936	} or	2304	}
1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1938		2305
		2306	if ($gen == $self->{_goto_generation}) {
		2307	delete $self->{_goto_generation};
1939	$self->leave_link ($map, $x, $y);	2308	$self->leave_link ($map, $x, $y);
		2309	}
		2310
		2311	$done->() if $done;
1940	})->prio (1);	2312	})->prio (1);
1941	}	2313	}
1942		2314
1943	=item $player_object->enter_exit ($exit_object)	2315	=item $player_object->enter_exit ($exit_object)
1944		2316
…		…
1983		2355
1984	$rmp->{random_seed} ||= $exit->random_seed;	2356	$rmp->{random_seed} ||= $exit->random_seed;
1985		2357
1986	my $data = cf::to_json $rmp;	2358	my $data = cf::to_json $rmp;
1987	my $md5 = Digest::MD5::md5_hex $data;	2359	my $md5 = Digest::MD5::md5_hex $data;
1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2360	my $meta = "$RANDOMDIR/$md5.meta";
1989		2361
1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2362	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1991	aio_write $fh, 0, (length $data), $data, 0;	2363	aio_write $fh, 0, (length $data), $data, 0;
1992	undef $fh;	2364	undef $fh;
1993	aio_rename "$meta~", $meta;	2365	aio_rename "$meta~", $meta;
…		…
2012	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2384	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2013	my $hp = $exit->stats->hp;	2385	my $hp = $exit->stats->hp;
2014	my $sp = $exit->stats->sp;	2386	my $sp = $exit->stats->sp;
2015		2387
2016	$self->enter_link;	2388	$self->enter_link;
		2389
		2390	# if exit is damned, update players death & WoR home-position
		2391	$self->contr->savebed ($slaying, $hp, $sp)
		2392	if $exit->flag (FLAG_DAMNED);
2017		2393
2018	(async {	2394	(async {
2019	$self->deactivate_recursive; # just to be sure	2395	$self->deactivate_recursive; # just to be sure
2020	unless (eval {	2396	unless (eval {
2021	$self->goto ($slaying, $hp, $sp);	2397	$self->goto ($slaying, $hp, $sp);
…		…
2049		2425
2050	utf8::encode $text;	2426	utf8::encode $text;
2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2427	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2052	}	2428	}
2053		2429
		2430	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2431
		2432	Send a drawinfo or msg packet to the client, formatting the msg for the
		2433	client if neccessary. C<$type> should be a string identifying the type of
		2434	the message, with C<log> being the default. If C<$color> is negative, suppress
		2435	the message unless the client supports the msg packet.
		2436
		2437	=cut
		2438
		2439	sub cf::client::send_msg {
		2440	my ($self, $channel, $msg, $color, @extra) = @_;
		2441
		2442	$msg = $self->pl->expand_cfpod ($msg);
		2443
		2444	return unless @extra || length $msg;
		2445
		2446	$color &= ~cf::NDI_UNIQUE; # just in case...
		2447
		2448	if (ref $channel) {
		2449	# send meta info to client, if not yet sent
		2450	unless (exists $self->{channel}{$channel->{id}}) {
		2451	$self->{channel}{$channel->{id}} = $channel;
		2452	$self->ext_event (channel_info => %$channel);
		2453	}
		2454
		2455	$channel = $channel->{id};
		2456	}
		2457
		2458	if ($self->can_msg) {
		2459	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2460	} else {
		2461	# replace some tags by gcfclient-compatible ones
		2462	for ($msg) {
		2463	1 while
		2464	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2465	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2466	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2467	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2468	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2469	}
		2470
		2471	if ($color >= 0) {
		2472	if (0 && $msg =~ /\[/) {
		2473	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2474	} else {
		2475	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2476	$self->send_packet ("drawinfo $color $msg")
		2477	}
		2478	}
		2479	}
		2480	}
		2481
2054	=item $client->ext_event ($type, %msg)	2482	=item $client->ext_event ($type, %msg)
2055		2483
2056	Sends an exti event to the client.	2484	Sends an ext event to the client.
2057		2485
2058	=cut	2486	=cut
2059		2487
2060	sub cf::client::ext_event($$%) {	2488	sub cf::client::ext_event($$%) {
2061	my ($self, $type, %msg) = @_;	2489	my ($self, $type, %msg) = @_;
2062		2490
		2491	return unless $self->extcmd;
		2492
2063	$msg{msgtype} = "event_$type";	2493	$msg{msgtype} = "event_$type";
2064	$self->send_packet ("ext " . cf::to_json \%msg);	2494	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2065	}	2495	}
2066		2496
2067	=item $success = $client->query ($flags, "text", \&cb)	2497	=item $success = $client->query ($flags, "text", \&cb)
2068		2498
2069	Queues a query to the client, calling the given callback with	2499	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>,	2500	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>.	2501	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2072		2502
2073	Queries can fail, so check the return code. Or don't, as queries will become	2503	Queries can fail, so check the return code. Or don't, as queries will
2074	reliable at some point in the future.	2504	become reliable at some point in the future.
2075		2505
2076	=cut	2506	=cut
2077		2507
2078	sub cf::client::query {	2508	sub cf::client::query {
2079	my ($self, $flags, $text, $cb) = @_;	2509	my ($self, $flags, $text, $cb) = @_;
…		…
2087	utf8::encode $text;	2517	utf8::encode $text;
2088	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2518	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2089		2519
2090	$self->send_packet ($self->{query_queue}[0][0])	2520	$self->send_packet ($self->{query_queue}[0][0])
2091	if @{ $self->{query_queue} } == 1;	2521	if @{ $self->{query_queue} } == 1;
		2522
		2523	1
2092	}	2524	}
2093		2525
2094	cf::client->attach (	2526	cf::client->attach (
		2527	on_connect => sub {
		2528	my ($ns) = @_;
		2529
		2530	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2531	},
2095	on_reply => sub {	2532	on_reply => sub {
2096	my ($ns, $msg) = @_;	2533	my ($ns, $msg) = @_;
2097		2534
2098	# this weird shuffling is so that direct followup queries	2535	# this weird shuffling is so that direct followup queries
2099	# get handled first	2536	# get handled first
…		…
2111	} else {	2548	} else {
2112	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2549	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2113	}	2550	}
2114	}	2551	}
2115	},	2552	},
		2553	on_exticmd => sub {
		2554	my ($ns, $buf) = @_;
		2555
		2556	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2557
		2558	if (ref $msg) {
		2559	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2560	if (my %reply = $cb->($ns, $msg)) {
		2561	$reply{msgid} = $msg->{msgid};
		2562	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2563	}
		2564	}
		2565	} else {
		2566	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2567	}
		2568
		2569	cf::override;
		2570	},
2116	);	2571	);
2117		2572
2118	=item $client->async (\&cb)	2573	=item $client->async (\&cb)
2119		2574
2120	Create a new coroutine, running the specified callback. The coroutine will	2575	Create a new coroutine, running the specified callback. The coroutine will
…		…
2169		2624
2170	=pod	2625	=pod
2171		2626
2172	The following functions and methods are available within a safe environment:	2627	The following functions and methods are available within a safe environment:
2173		2628
2174	cf::object contr pay_amount pay_player map	2629	cf::object
		2630	contr pay_amount pay_player map x y force_find force_add
		2631	insert remove
		2632
2175	cf::object::player player	2633	cf::object::player
2176	cf::player peaceful	2634	player
2177	cf::map trigger	2635
		2636	cf::player
		2637	peaceful
		2638
		2639	cf::map
		2640	trigger
2178		2641
2179	=cut	2642	=cut
2180		2643
2181	for (	2644	for (
2182	["cf::object" => qw(contr pay_amount pay_player map)],	2645	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2646	insert remove)],
2183	["cf::object::player" => qw(player)],	2647	["cf::object::player" => qw(player)],
2184	["cf::player" => qw(peaceful)],	2648	["cf::player" => qw(peaceful)],
2185	["cf::map" => qw(trigger)],	2649	["cf::map" => qw(trigger)],
2186	) {	2650	) {
2187	no strict 'refs';	2651	no strict 'refs';
…		…
2258	=back	2722	=back
2259		2723
2260	=cut	2724	=cut
2261		2725
2262	#############################################################################	2726	#############################################################################
2263
2264	=head2 EXTENSION DATABASE SUPPORT
2265
2266	Crossfire maintains a very simple database for extension use. It can
2267	currently store anything that can be serialised using Storable, which
2268	excludes objects.
2269
2270	The parameter C<$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 $meta) {
2365	# changed, we need to process
2366	} else {
2367	# just fetch
2368	}
2369
2370
2371	}
2372
2373	#############################################################################
2374	# the server's init and main functions	2727	# the server's init and main functions
2375		2728
2376	sub load_facedata($) {	2729	sub load_facedata($) {
2377	my ($path) = @_;	2730	my ($path) = @_;
2378		2731
…		…
2390	{	2743	{
2391	my $faces = $facedata->{faceinfo};	2744	my $faces = $facedata->{faceinfo};
2392		2745
2393	while (my ($face, $info) = each %$faces) {	2746	while (my ($face, $info) = each %$faces) {
2394	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2747	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2395	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2748	cf::face::set_visibility $idx, $info->{visibility};
		2749	cf::face::set_magicmap $idx, $info->{magicmap};
2396	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2750	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2397	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2751	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2398	Coro::cede;	2752
		2753	cf::cede_to_tick;
2399	}	2754	}
2400		2755
2401	while (my ($face, $info) = each %$faces) {	2756	while (my ($face, $info) = each %$faces) {
2402	next unless $info->{smooth};	2757	next unless $info->{smooth};
2403	my $idx = cf::face::find $face	2758	my $idx = cf::face::find $face
2404	or next;	2759	or next;
2405	if (my $smooth = cf::face::find $info->{smooth}) {	2760	if (my $smooth = cf::face::find $info->{smooth}) {
		2761	cf::face::set_smooth $idx, $smooth;
2406	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2762	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2407	} else {	2763	} else {
2408	warn "smooth face '$info->{smooth}' not found for face '$face'";	2764	warn "smooth face '$info->{smooth}' not found for face '$face'";
2409	}	2765	}
2410	Coro::cede;	2766
		2767	cf::cede_to_tick;
2411	}	2768	}
2412	}	2769	}
2413		2770
2414	{	2771	{
2415	my $anims = $facedata->{animinfo};	2772	my $anims = $facedata->{animinfo};
2416		2773
2417	while (my ($anim, $info) = each %$anims) {	2774	while (my ($anim, $info) = each %$anims) {
2418	cf::anim::set $anim, $info->{frames}, $info->{facings};	2775	cf::anim::set $anim, $info->{frames}, $info->{facings};
2419	Coro::cede;	2776	cf::cede_to_tick;
2420	}	2777	}
2421		2778
2422	cf::anim::invalidate_all; # d'oh	2779	cf::anim::invalidate_all; # d'oh
2423	}	2780	}
2424		2781
		2782	{
		2783	# TODO: for gcfclient pleasure, we should give resources
		2784	# that gcfclient doesn't grok a >10000 face index.
		2785	my $res = $facedata->{resource};
		2786	my $enc = JSON::XS->new->utf8->canonical;
		2787
		2788	while (my ($name, $info) = each %$res) {
		2789	my $meta = $enc->encode ({
		2790	name => $name,
		2791	type => $info->{type},
		2792	copyright => $info->{copyright}, #TODO#
		2793	});
		2794
		2795	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2796
		2797	if ($name =~ /\.jpg$/) {
		2798	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2799	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2800	} else {
		2801	my $data = pack "(w/a*)*", $meta, $info->{data};
		2802	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2803
		2804	cf::face::set_type $idx, 1;
		2805	cf::face::set_data $idx, 0, $data, $chk;
		2806	}
		2807
		2808	cf::cede_to_tick;
		2809	}
		2810	}
		2811
2425	1	2812	1
2426	}	2813	}
2427		2814
		2815	sub reload_regions {
		2816	load_resource_file "$MAPDIR/regions"
		2817	or die "unable to load regions file\n";
		2818
		2819	for (cf::region::list) {
		2820	$_->{match} = qr/$_->{match}/
		2821	if exists $_->{match};
		2822	}
		2823	}
		2824
2428	sub reload_facedata {	2825	sub reload_facedata {
2429	load_facedata sprintf "%s/facedata", cf::datadir	2826	load_facedata "$DATADIR/facedata"
2430	or die "unable to load facedata\n";	2827	or die "unable to load facedata\n";
2431	}	2828	}
2432		2829
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 {	2830	sub reload_archetypes {
2439	load_resource_file sprintf "%s/archetypes", cf::datadir	2831	load_resource_file "$DATADIR/archetypes"
2440	or die "unable to load archetypes\n";	2832	or die "unable to load archetypes\n";
		2833	#d# NEED to laod twice to resolve forward references
		2834	# this really needs to be done in an extra post-pass
		2835	# (which needs to be synchronous, so solve it differently)
		2836	load_resource_file "$DATADIR/archetypes"
		2837	or die "unable to load archetypes\n";
2441	}	2838	}
2442		2839
2443	sub reload_treasures {	2840	sub reload_treasures {
2444	load_resource_file sprintf "%s/treasures", cf::datadir	2841	load_resource_file "$DATADIR/treasures"
2445	or die "unable to load treasurelists\n";	2842	or die "unable to load treasurelists\n";
2446	}	2843	}
2447		2844
2448	sub reload_resources {	2845	sub reload_resources {
2449	warn "reloading resource files...\n";	2846	warn "reloading resource files...\n";
2450		2847
2451	reload_regions;	2848	reload_regions;
2452	reload_facedata;	2849	reload_facedata;
		2850	#reload_archetypes;#d#
2453	reload_archetypes;	2851	reload_archetypes;
2454	reload_treasures;	2852	reload_treasures;
2455		2853
2456	warn "finished reloading resource files\n";	2854	warn "finished reloading resource files\n";
2457	}	2855	}
…		…
2459	sub init {	2857	sub init {
2460	reload_resources;	2858	reload_resources;
2461	}	2859	}
2462		2860
2463	sub cfg_load {	2861	sub cfg_load {
2464	open my $fh, "<:utf8", cf::confdir . "/config"	2862	open my $fh, "<:utf8", "$CONFDIR/config"
2465	or return;	2863	or return;
2466		2864
2467	local $/;	2865	local $/;
2468	*CFG = YAML::Syck::Load <$fh>;	2866	*CFG = YAML::Syck::Load <$fh>;
2469		2867
…		…
2514	},	2912	},
2515	);	2913	);
2516	}	2914	}
2517	}	2915	}
2518		2916
		2917	sub write_runtime {
		2918	my $runtime = "$LOCALDIR/runtime";
		2919
		2920	# first touch the runtime file to show we are still running:
		2921	# the fsync below can take a very very long time.
		2922
		2923	IO::AIO::aio_utime $runtime, undef, undef;
		2924
		2925	my $guard = cf::lock_acquire "write_runtime";
		2926
		2927	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2928	or return;
		2929
		2930	my $value = $cf::RUNTIME + 90 + 10;
		2931	# 10 is the runtime save interval, for a monotonic clock
		2932	# 60 allows for the watchdog to kill the server.
		2933
		2934	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2935	and return;
		2936
		2937	# always fsync - this file is important
		2938	aio_fsync $fh
		2939	and return;
		2940
		2941	# touch it again to show we are up-to-date
		2942	aio_utime $fh, undef, undef;
		2943
		2944	close $fh
		2945	or return;
		2946
		2947	aio_rename "$runtime~", $runtime
		2948	and return;
		2949
		2950	warn "runtime file written.\n";
		2951
		2952	1
		2953	}
		2954
2519	sub emergency_save() {	2955	sub emergency_save() {
2520	my $freeze_guard = cf::freeze_mainloop;	2956	my $freeze_guard = cf::freeze_mainloop;
2521		2957
2522	warn "enter emergency perl save\n";	2958	warn "enter emergency perl save\n";
2523		2959
…		…
2598	%EXT_CORO = ();	3034	%EXT_CORO = ();
2599		3035
2600	warn "removing commands";	3036	warn "removing commands";
2601	%COMMAND = ();	3037	%COMMAND = ();
2602		3038
2603	warn "removing ext commands";	3039	warn "removing ext/exti commands";
2604	%EXTCMD = ();	3040	%EXTCMD = ();
		3041	%EXTICMD = ();
2605		3042
2606	warn "unloading/nuking all extensions";	3043	warn "unloading/nuking all extensions";
2607	for my $pkg (@EXTS) {	3044	for my $pkg (@EXTS) {
2608	warn "... unloading $pkg";	3045	warn "... unloading $pkg";
2609		3046
…		…
2639	Symbol::delete_package "safe::$_"	3076	Symbol::delete_package "safe::$_"
2640	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3077	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2641		3078
2642	warn "unloading cf.pm \"a bit\"";	3079	warn "unloading cf.pm \"a bit\"";
2643	delete $INC{"cf.pm"};	3080	delete $INC{"cf.pm"};
		3081	delete $INC{"cf/pod.pm"};
2644		3082
2645	# don't, removes xs symbols, too,	3083	# don't, removes xs symbols, too,
2646	# and global variables created in xs	3084	# and global variables created in xs
2647	#Symbol::delete_package __PACKAGE__;	3085	#Symbol::delete_package __PACKAGE__;
2648		3086
…		…
2726	my $signal = new Coro::Signal;	3164	my $signal = new Coro::Signal;
2727	push @WAIT_FOR_TICK_BEGIN, $signal;	3165	push @WAIT_FOR_TICK_BEGIN, $signal;
2728	$signal->wait;	3166	$signal->wait;
2729	}	3167	}
2730		3168
		3169	my $min = 1e6;#d#
		3170	my $avg = 10;
2731	$TICK_WATCHER = Event->timer (	3171	$TICK_WATCHER = Event->timer (
2732	reentrant => 0,	3172	reentrant => 0,
2733	parked => 1,	3173	parked => 1,
2734	prio => 0,	3174	prio => 0,
2735	at => $NEXT_TICK || $TICK,	3175	at => $NEXT_TICK || $TICK,
…		…
2739	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3179	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2740	unless ++$bug_warning > 10;	3180	unless ++$bug_warning > 10;
2741	return;	3181	return;
2742	}	3182	}
2743		3183
2744	$NOW = Event::time;	3184	$NOW = $tick_start = Event::time;
2745		3185
2746	cf::server_tick; # one server iteration	3186	cf::server_tick; # one server iteration
		3187
		3188	0 && sync_job {#d#
		3189	for(1..10) {
		3190	my $t = Event::time;
		3191	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3192	or die;
		3193
		3194	$map->width (50);
		3195	$map->height (50);
		3196	$map->alloc;
		3197	$map->_load_objects ("/tmp/x.map", 1);
		3198	my $t = Event::time - $t;
		3199
		3200	#next unless $t < 0.0013;#d#
		3201	if ($t < $min) {
		3202	$min = $t;
		3203	}
		3204	$avg = $avg * 0.99 + $t * 0.01;
		3205	}
		3206	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3207	exit 0;
		3208	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3209	};
2747		3210
2748	$RUNTIME += $TICK;	3211	$RUNTIME += $TICK;
2749	$NEXT_TICK += $TICK;	3212	$NEXT_TICK += $TICK;
2750		3213
2751	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3214	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2757	}	3220	}
2758		3221
2759	# my $AFTER = Event::time;	3222	# my $AFTER = Event::time;
2760	# warn $AFTER - $NOW;#d#	3223	# warn $AFTER - $NOW;#d#
2761		3224
		3225	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3226	$sig->send;
		3227	}
		3228	while (my $sig = shift @WAIT_FOR_TICK) {
		3229	$sig->send;
		3230	}
		3231
		3232	$NOW = Event::time;
		3233
2762	# if we are delayed by four ticks or more, skip them all	3234	# if we are delayed by four ticks or more, skip them all
2763	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3235	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2764		3236
2765	$TICK_WATCHER->at ($NEXT_TICK);	3237	$TICK_WATCHER->at ($NEXT_TICK);
2766	$TICK_WATCHER->start;	3238	$TICK_WATCHER->start;
2767		3239
2768	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3240	$LOAD = ($NOW - $tick_start) / $TICK;
2769	$sig->send;	3241	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2770	}
2771	while (my $sig = shift @WAIT_FOR_TICK) {
2772	$sig->send;
2773	}
2774		3242
2775	_post_tick;	3243	_post_tick;
		3244
		3245
2776	},	3246	},
2777	);	3247	);
2778		3248
2779	{	3249	{
2780	BDB::max_poll_time $TICK * 0.1;	3250	BDB::max_poll_time $TICK * 0.1;
…		…
2808		3278
2809	cf::sync_job {	3279	cf::sync_job {
2810	eval {	3280	eval {
2811	BDB::db_env_open	3281	BDB::db_env_open
2812	$DB_ENV,	3282	$DB_ENV,
2813	$BDB_ENV_DIR,	3283	$BDBDIR,
2814	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3284	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2815	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3285	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2816	0666;	3286	0666;
2817		3287
2818	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3288	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2819		3289
2820	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3290	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2821	$DB_ENV->set_lk_detect;	3291	$DB_ENV->set_lk_detect;
2822	};	3292	};
2823		3293
…		…
2839	prio => 6,	3309	prio => 6,
2840	cb => \&IO::AIO::poll_cb,	3310	cb => \&IO::AIO::poll_cb,
2841	);	3311	);
2842	}	3312	}
2843		3313
		3314	my $_log_backtrace;
		3315
		3316	sub _log_backtrace {
		3317	my ($msg, @addr) = @_;
		3318
		3319	$msg =~ s/\n//;
		3320
		3321	# limit the # of concurrent backtraces
		3322	if ($_log_backtrace < 2) {
		3323	++$_log_backtrace;
		3324	async {
		3325	my @bt = fork_call {
		3326	@addr = map { sprintf "%x", $_ } @addr;
		3327	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3328	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3329	or die "addr2line: $!";
		3330
		3331	my @funcs;
		3332	my @res = <$fh>;
		3333	chomp for @res;
		3334	while (@res) {
		3335	my ($func, $line) = splice @res, 0, 2, ();
		3336	push @funcs, "[$func] $line";
		3337	}
		3338
		3339	@funcs
		3340	};
		3341
		3342	LOG llevInfo, "[ABT] $msg\n";
		3343	LOG llevInfo, "[ABT] $_\n" for @bt;
		3344	--$_log_backtrace;
		3345	};
		3346	} else {
		3347	LOG llevInfo, "[ABT] $msg\n";
		3348	LOG llevInfo, "[ABT] [suppressed]\n";
		3349	}
		3350	}
		3351
2844	# load additional modules	3352	# load additional modules
2845	use cf::pod;	3353	use cf::pod;
2846		3354
2847	END { cf::emergency_save }	3355	END { cf::emergency_save }
2848		3356

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