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Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.238 by root, Sat Apr 14 07:23:00 2007 UTC vs.
Revision 1.305 by root, Thu Jul 12 08:40:14 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
9	use Event;	10	use Event;
10	use Opcode;	11	use Opcode;
11	use Safe;	12	use Safe;
12	use Safe::Hole;	13	use Safe::Hole;
13		14
14	use Coro 3.52 ();	15	use Coro 3.61 ();
15	use Coro::State;	16	use Coro::State;
		17	use Coro::Handle;
16	use Coro::Event;	18	use Coro::Event;
17	use Coro::Timer;	19	use Coro::Timer;
18	use Coro::Signal;	20	use Coro::Signal;
19	use Coro::Semaphore;	21	use Coro::Semaphore;
20	use Coro::AIO;	22	use Coro::AIO;
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";
58		62
59	our $TICK = MAX_TIME * 1e-6;	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";
		74
		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
63	our $NEXT_TICK;	79	our $NEXT_TICK;
64	our $NOW;	80	our $NOW;
…		…
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
81	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
82	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
83		94
84	# 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 ∕
85	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
86		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 $tick_start; # for load detecting purposes
		101
87	binmode STDOUT;	102	binmode STDOUT;
88	binmode STDERR;	103	binmode STDERR;
89		104
90	# read virtual server time, if available	105	# read virtual server time, if available
91	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
92	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
93	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
94	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
95	}	110	}
96		111
97	mkdir cf::localdir;	112	mkdir $_
98	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
99	mkdir cf::localdir . "/" . cf::tmpdir;
100	mkdir cf::localdir . "/" . cf::uniquedir;
101	mkdir $RANDOM_MAPS;
102	mkdir $BDB_ENV_DIR;
103		114
104	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
105		116
106	sub cf::map::normalise;	117	sub cf::map::normalise;
107		118
…		…
118	=item $cf::RUNTIME	129	=item $cf::RUNTIME
119		130
120	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
121	every server tick.	132	every server tick.
122		133
123	=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
124		137
125	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
126	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.
127		142
128	=item $cf::NOW	143	=item $cf::NOW
129		144
130	The time of the last (current) server tick.	145	The time of the last (current) server tick.
131		146
132	=item $cf::TICK	147	=item $cf::TICK
133		148
134	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.
135		160
136	=item %cf::CFG	161	=item %cf::CFG
137		162
138	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
139	from wherever your confdir points to.	164	from wherever your confdir points to.
140		165
141	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	166	=item cf::wait_for_tick, cf::wait_for_tick_begin
142		167
143	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
144	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	169	returns directly I<after> the tick processing (and consequently, can only wake one process
145	processing has been done. Call C<< ->wait >> on them to maximise the	170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
146	window of cpu time available, or simply to synchronise to the server tick.
147		171
148	=back	172	=back
149		173
150	=cut	174	=cut
151		175
152	BEGIN {	176	BEGIN {
153	*CORE::GLOBAL::warn = sub {	177	*CORE::GLOBAL::warn = sub {
154	my $msg = join "", @_;	178	my $msg = join "", @_;
155	utf8::encode $msg;
156		179
157	$msg .= "\n"	180	$msg .= "\n"
158	unless $msg =~ /\n$/;	181	unless $msg =~ /\n$/;
159		182
		183	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		184
		185	utf8::encode $msg;
160	LOG llevError, $msg;	186	LOG llevError, $msg;
161	};	187	};
162	}	188	}
163		189
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	190	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	191	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	192	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	193	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@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';
169	@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)
170		197
171	# 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
172	# within the Safe compartment.	199	# within the Safe compartment.
173	for my $pkg (qw(	200	for my $pkg (qw(
174	cf::global cf::attachable	201	cf::global cf::attachable
…		…
182	}	209	}
183		210
184	$Event::DIED = sub {	211	$Event::DIED = sub {
185	warn "error in event callback: @_";	212	warn "error in event callback: @_";
186	};	213	};
		214
		215	#############################################################################
187		216
188	=head2 UTILITY FUNCTIONS	217	=head2 UTILITY FUNCTIONS
189		218
190	=over 4	219	=over 4
191		220
…		…
210	$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;
211	$d	240	$d
212	} || "[unable to dump $_[0]: '$@']";	241	} || "[unable to dump $_[0]: '$@']";
213	}	242	}
214		243
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
218		245
219	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
220		247
221	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
222		249
223	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]) }
224		258
225	=item cf::lock_wait $string	259	=item cf::lock_wait $string
226		260
227	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
228		262
…		…
234	returned.	268	returned.
235		269
236	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
237	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
238		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
239	=cut	277	=cut
240		278
241	our %LOCK;	279	our %LOCK;
242		280
243	sub lock_wait($) {	281	sub lock_wait($) {
…		…
260		298
261	Coro::guard {	299	Coro::guard {
262	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
264	}	302	}
		303	}
		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
265	}	309	}
266		310
267	sub freeze_mainloop {	311	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
269		313
…		…
284		328
285	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
286		330
287	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
288		332
289	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
292		337
293	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
296	fast or be very important.	341	fast or be very important.
…		…
299		344
300	sub sync_job(&) {	345	sub sync_job(&) {
301	my ($job) = @_;	346	my ($job) = @_;
302		347
303	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
304	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
306		353
307	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
308	# (but this is cancel-safe)	355	# (but this is cancel-safe)
…		…
319		366
320	while ($busy) {	367	while ($busy) {
321	Coro::cede or Event::one_event;	368	Coro::cede or Event::one_event;
322	}	369	}
323		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
324	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
325	} else {	379	} else {
326	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
327		381
328	$job->()	382	$job->()
…		…
347	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
348		402
349	$coro	403	$coro
350	}	404	}
351		405
352	sub write_runtime {	406	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		407
355	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.
356		412
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	413	=cut
358	or return;
359		414
360	my $value = $cf::RUNTIME + 90 + 10;	415	sub _store_scalar {
361	# 10 is the runtime save interval, for a monotonic clock	416	open my $fh, ">", \my $buf
362	# 60 allows for the watchdog to kill the server.	417	or die "fork_call: cannot open fh-to-buf in child : $!";
363		418	Storable::store_fd $_[0], $fh;
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0
365	and return;
366
367	# always fsync - this file is important
368	aio_fsync $fh
369	and return;
370
371	close $fh	419	close $fh;
372	or return;
373		420
374	aio_rename "$runtime~", $runtime	421	$buf
375	and return;	422	}
376		423
		424	sub fork_call(&@) {
		425	my ($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 $$res unless "ARRAY" eq ref $res;
		442
		443	return wantarray ? @$res : $res->[-1];
		444	} else {
		445	reset_signals;
		446	local $SIG{__WARN__};
		447	local $SIG{__DIE__};
		448	# just in case, this hack effectively disables event
		449	# in the child. cleaner and slower would be canceling all watchers,
		450	# but this works for the time being.
		451	local $Coro::idle;
		452	$Coro::current->prio (Coro::PRIO_MAX);
		453
		454	eval {
		455	close $fh1;
		456
		457	my @res = eval { $cb->(@args) };
		458
		459	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		460	close $fh2;
		461	};
		462
		463	warn $@ if $@;
		464	_exit 0;
377	1	465	}
		466	}
		467
		468	=item $value = cf::db_get $family => $key
		469
		470	Returns a single value from the environment database.
		471
		472	=item cf::db_put $family => $key => $value
		473
		474	Stores the given C<$value> in the family. It can currently store binary
		475	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		476
		477	=cut
		478
		479	our $DB;
		480
		481	sub db_init {
		482	unless ($DB) {
		483	$DB = BDB::db_create $DB_ENV;
		484
		485	cf::sync_job {
		486	eval {
		487	$DB->set_flags (BDB::CHKSUM);
		488
		489	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		490	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		491	cf::cleanup "db_open(db): $!" if $!;
		492	};
		493	cf::cleanup "db_open(db): $@" if $@;
		494	};
		495	}
		496	}
		497
		498	sub db_get($$) {
		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"
378	}	582	}
379		583
380	=item cf::datalog type => key => value, ...	584	=item cf::datalog type => key => value, ...
381		585
382	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.
…		…
400	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")
401	to it. All such attachable objects support the following methods.	605	to it. All such attachable objects support the following methods.
402		606
403	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>
404	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
405	crossfire+).	609	Crossfire TRT).
406		610
407	=over 4	611	=over 4
408		612
409	=item $attachable->attach ($attachment, key => $value...)	613	=item $attachable->attach ($attachment, key => $value...)
410		614
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	777	$registry = $CB_TYPE[$object_type] ||= [];
574		778
575	} elsif ($type eq "subtype") {	779	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	780	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	781	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	782	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		783
580	} elsif ($type eq "package") {	784	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	785	my $pkg = shift @arg;
582		786
583	while (my ($name, $id) = each %cb_id) {	787	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	816	_attach $registry, $klass, @attach;
613	}	817	}
614		818
615	$obj->{$name} = \%arg;	819	$obj->{$name} = \%arg;
616	} else {	820	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	821	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	822	}
619		823
620	$obj->{_attachment}{$name} = undef;	824	$obj->{_attachment}{$name} = undef;
621	}	825	}
622		826
…		…
624	if (ref $_[0]) {	828	if (ref $_[0]) {
625	_object_attach @_;	829	_object_attach @_;
626	} else {	830	} else {
627	_attach shift->_attach_registry, @_;	831	_attach shift->_attach_registry, @_;
628	}	832	}
		833	_recalc_want;
629	};	834	};
630		835
631	# all those should be optimised	836	# all those should be optimised
632	sub cf::attachable::detach {	837	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	838	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	841	delete $obj->{_attachment}{$name};
637	reattach ($obj);	842	reattach ($obj);
638	} else {	843	} else {
639	Carp::croak "cannot, currently, detach class attachments";	844	Carp::croak "cannot, currently, detach class attachments";
640	}	845	}
		846	_recalc_want;
641	};	847	};
642		848
643	sub cf::attachable::attached {	849	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	850	my ($obj, $name) = @_;
645		851
…		…
818	or return;	1024	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	1025	$av = eval { (Storable::thaw $av)->{objs} };
820	}	1026	}
821		1027
822	warn sprintf "loading %s (%d)\n",	1028	warn sprintf "loading %s (%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1029	$filename, length $data, scalar @{$av || []};
824	return ($data, $av);	1030	return ($data, $av);
825	}	1031	}
		1032
		1033	=head2 COMMAND CALLBACKS
		1034
		1035	=over 4
		1036
		1037	=cut
826		1038
827	#############################################################################	1039	#############################################################################
828	# command handling &c	1040	# command handling &c
829		1041
830	=item cf::register_command $name => \&callback($ob,$args);	1042	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1055	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1056	}
845		1057
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1058	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1059
848	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.
849		1065
850	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
851	called.	1067	called.
852		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
853	=cut	1080	=cut
854		1081
855	sub register_extcmd {	1082	sub register_extcmd {
856	my ($name, $cb) = @_;	1083	my ($name, $cb) = @_;
857		1084
858	$EXTCMD{$name} = $cb;	1085	$EXTCMD{$name} = $cb;
		1086	}
		1087
		1088	sub register_exticmd {
		1089	my ($name, $cb) = @_;
		1090
		1091	$EXTICMD{$name} = $cb;
859	}	1092	}
860		1093
861	cf::player->attach (	1094	cf::player->attach (
862	on_command => sub {	1095	on_command => sub {
863	my ($pl, $name, $params) = @_;	1096	my ($pl, $name, $params) = @_;
…		…
872	cf::override;	1105	cf::override;
873	},	1106	},
874	on_extcmd => sub {	1107	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1108	my ($pl, $buf) = @_;
876		1109
877	my $msg = eval { from_json $buf };	1110	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1111
879	if (ref $msg) {	1112	if (ref $msg) {
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1113	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
881	if (my %reply = $cb->($pl, $msg)) {	1114	if (my %reply = $cb->($pl, $msg)) {
882	$pl->ext_reply ($msg->{msgid}, %reply);	1115	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
888		1121
889	cf::override;	1122	cf::override;
890	},	1123	},
891	);	1124	);
892		1125
893	sub load_extension {
894	my ($path) = @_;
895
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
897	my $base = $1;
898	my $pkg = $1;
899	$pkg =~ s/[^[:word:]]/_/g;
900	$pkg = "ext::$pkg";
901
902	warn "... loading '$path' into '$pkg'\n";
903
904	open my $fh, "<:utf8", $path
905	or die "$path: $!";
906
907	my $source =
908	"package $pkg; use strict; use utf8;\n"
909	. "#line 1 \"$path\"\n{\n"
910	. (do { local $/; <$fh> })
911	. "\n};\n1";
912
913	unless (eval $source) {
914	my $msg = $@ ? "$path: $@\n"
915	: "extension disabled.\n";
916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
917	warn $@;
918	warn "mandatory extension failed to load, exiting.\n";
919	exit 1;
920	}
921	die $@;
922	}
923
924	push @EXTS, $pkg;
925	}
926
927	sub load_extensions {	1126	sub load_extensions {
		1127	cf::sync_job {
		1128	my %todo;
		1129
928	for my $ext (<$LIBDIR/*.ext>) {	1130	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1131	next unless -r $path;
930	eval {	1132
931	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;
932	1	1190	}
933	} or warn "$ext not loaded: $@";	1191
		1192	skip:
		1193	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1194	unless $progress;
		1195	}
934	}	1196	};
935	}	1197	}
936		1198
937	#############################################################################	1199	#############################################################################
938		1200
		1201	=back
		1202
939	=head2 CORE EXTENSIONS	1203	=head2 CORE EXTENSIONS
940		1204
941	Functions and methods that extend core crossfire objects.	1205	Functions and methods that extend core crossfire objects.
942		1206
943	=cut	1207	=cut
…		…
955	Returns the given player object, loading it if necessary (might block).	1219	Returns the given player object, loading it if necessary (might block).
956		1220
957	=cut	1221	=cut
958		1222
959	sub playerdir($) {	1223	sub playerdir($) {
960	cf::localdir	1224	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1225	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1226	}
966		1227
967	sub path($) {	1228	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1229	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
1088	while and may block, so not sync_job-capable, ever.	1349	while and may block, so not sync_job-capable, ever.
1089		1350
1090	=cut	1351	=cut
1091		1352
1092	sub list_logins {	1353	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1354	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1355	or return [];
1095		1356
1096	my @logins;	1357	my @logins;
1097		1358
1098	for my $login (@$dirs) {	1359	for my $login (@$dirs) {
…		…
1133	}	1394	}
1134		1395
1135	\@paths	1396	\@paths
1136	}	1397	}
1137		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
1138	=item $player->ext_reply ($msgid, %msg)	1449	=item $player->ext_reply ($msgid, %msg)
1139		1450
1140	Sends an ext reply to the player.	1451	Sends an ext reply to the player.
1141		1452
1142	=cut	1453	=cut
1143		1454
1144	sub ext_reply($$%) {	1455	sub ext_reply($$%) {
1145	my ($self, $id, %msg) = @_;	1456	my ($self, $id, %msg) = @_;
1146		1457
1147	$msg{msgid} = $id;	1458	$msg{msgid} = $id;
1148		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1460	}
1151		1461
1152	=item $player->ext_event ($type, %msg)	1462	=item $player->ext_event ($type, %msg)
1153		1463
1154	Sends an ext event to the client.	1464	Sends an ext event to the client.
…		…
1169		1479
1170	package cf::region;	1480	package cf::region;
1171		1481
1172	=item cf::region::find_by_path $path	1482	=item cf::region::find_by_path $path
1173		1483
1174	Tries to decuce the probable region for a map knowing only its path.	1484	Tries to decuce the likely region for a map knowing only its path.
1175		1485
1176	=cut	1486	=cut
1177		1487
1178	sub find_by_path($) {	1488	sub find_by_path($) {
1179	my ($path) = @_;	1489	my ($path) = @_;
1180		1490
1181	my ($match, $specificity);	1491	my ($match, $specificity);
1182		1492
1183	for my $region (list) {	1493	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1494	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1495	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1496	if $region->specificity > $specificity;
1187	}	1497	}
1188	}	1498	}
1189		1499
…		…
1253	my ($self, $merge) = @_;	1563	my ($self, $merge) = @_;
1254		1564
1255	# we have to keep some variables in memory intact	1565	# we have to keep some variables in memory intact
1256	local $self->{path};	1566	local $self->{path};
1257	local $self->{load_path};	1567	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1568
1261	$self->SUPER::thawer_merge ($merge);	1569	$self->SUPER::thawer_merge ($merge);
1262	}	1570	}
1263		1571
1264	sub normalise {	1572	sub normalise {
…		…
1336		1644
1337	# the original (read-only) location	1645	# the original (read-only) location
1338	sub load_path {	1646	sub load_path {
1339	my ($self) = @_;	1647	my ($self) = @_;
1340		1648
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1649	"$MAPDIR/$self->{path}.map"
1342	}	1650	}
1343		1651
1344	# the temporary/swap location	1652	# the temporary/swap location
1345	sub save_path {	1653	sub save_path {
1346	my ($self) = @_;	1654	my ($self) = @_;
1347		1655
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1656	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1657	"$TMPDIR/$path.map"
1350	}	1658	}
1351		1659
1352	# the unique path, undef == no special unique path	1660	# the unique path, undef == no special unique path
1353	sub uniq_path {	1661	sub uniq_path {
1354	my ($self) = @_;	1662	my ($self) = @_;
1355		1663
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1664	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1665	"$UNIQUEDIR/$path"
1358	}	1666	}
1359		1667
1360	# and all this just because we cannot iterate over	1668	# and all this just because we cannot iterate over
1361	# all maps in C++...	1669	# all maps in C++...
1362	sub change_all_map_light {	1670	sub change_all_map_light {
1363	my ($change) = @_;	1671	my ($change) = @_;
1364		1672
1365	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1366	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	$self->do_decay_objects;
1367	}	1683	}
1368		1684
1369	sub unlink_save {	1685	sub unlink_save {
1370	my ($self) = @_;	1686	my ($self) = @_;
1371		1687
…		…
1429	$self->load_header_orig	1745	$self->load_header_orig
1430	or return;	1746	or return;
1431	$self->prepare_orig;	1747	$self->prepare_orig;
1432	}	1748	}
1433		1749
		1750	$self->{deny_reset} = 1
		1751	if $self->no_reset;
		1752
1434	$self->default_region (cf::region::find_by_path $self->{path})	1753	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1754	unless $self->default_region;
1436		1755
1437	1	1756	1
1438	}	1757	}
…		…
1453	$map->{last_save} = $cf::RUNTIME;	1772	$map->{last_save} = $cf::RUNTIME;
1454		1773
1455	$map->load_header	1774	$map->load_header
1456	or return;	1775	or return;
1457		1776
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1777	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	1778	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	1779	#$cf::WAIT_FOR_TICK->wait;
1461	$map->reset;	1780	$map->reset;
1462	undef $guard;	1781	undef $guard;
1463	return find $path;	1782	return find $path;
…		…
1474	my ($self) = @_;	1793	my ($self) = @_;
1475		1794
1476	local $self->{deny_reset} = 1; # loading can take a long time	1795	local $self->{deny_reset} = 1; # loading can take a long time
1477		1796
1478	my $path = $self->{path};	1797	my $path = $self->{path};
		1798
		1799	{
1479	my $guard = cf::lock_acquire "map_load:$path";	1800	my $guard = cf::lock_acquire "map_load:$path";
1480		1801
1481	return if $self->in_memory != cf::MAP_SWAPPED;	1802	return if $self->in_memory != cf::MAP_SWAPPED;
1482		1803
1483	$self->in_memory (cf::MAP_LOADING);	1804	$self->in_memory (cf::MAP_LOADING);
1484		1805
1485	$self->alloc;	1806	$self->alloc;
1486		1807
1487	$self->pre_load;	1808	$self->pre_load;
1488
1489	$self->_load_objects ($self->{load_path}, 1)
1490	or return;
1491
1492	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1493	if delete $self->{load_original};
1494
1495	if (my $uniq = $self->uniq_path) {
1496	utf8::encode $uniq;
1497	if (aio_open $uniq, O_RDONLY, 0) {
1498	$self->clear_unique_items;
1499	$self->_load_objects ($uniq, 0);
1500	}
1501	}
1502
1503	Coro::cede;
1504
1505	# now do the right thing for maps
1506	$self->link_multipart_objects;
1507
1508	unless ($self->{deny_activate}) {
1509	$self->decay_objects;
1510	$self->fix_auto_apply;
1511	$self->update_buttons;
1512	Coro::cede;	1809	Coro::cede;
1513	$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;
1514	$self->difficulty ($self->estimate_difficulty)	1828	$self->difficulty ($self->estimate_difficulty)
1515	unless $self->difficulty;	1829	unless $self->difficulty;
1516	Coro::cede;	1830	Coro::cede;
		1831
		1832	unless ($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;
1517	$self->activate;	1839	$self->activate;
		1840	}
		1841
		1842	$self->in_memory (cf::MAP_IN_MEMORY);
1518	}	1843	}
1519		1844
1520	$self->post_load;	1845	$self->post_load;
1521
1522	$self->in_memory (cf::MAP_IN_MEMORY);
1523	}	1846	}
1524		1847
1525	sub customise_for {	1848	sub customise_for {
1526	my ($self, $ob) = @_;	1849	my ($self, $ob) = @_;
1527		1850
1528	return find "~" . $ob->name . "/" . $self->{path}	1851	return find "~" . $ob->name . "/" . $self->{path}
1529	if $self->per_player;	1852	if $self->per_player;
		1853
		1854	# return find "?party/" . $ob->name . "/" . $self->{path}
		1855	# if $self->per_party;
1530		1856
1531	$self	1857	$self
1532	}	1858	}
1533		1859
1534	# find and load all maps in the 3x3 area around a map	1860	# find and load all maps in the 3x3 area around a map
…		…
1645		1971
1646	sub reset_at {	1972	sub reset_at {
1647	my ($self) = @_;	1973	my ($self) = @_;
1648		1974
1649	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1650	return 1e99 if $self->isa ("ext::map_per_player");#d#
1651	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1652		1977
1653	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1654	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1655		1980
…		…
1666	my ($self) = @_;	1991	my ($self) = @_;
1667		1992
1668	my $lock = cf::lock_acquire "map_data:$self->{path}";	1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
1669		1994
1670	return if $self->players;	1995	return if $self->players;
1671	return if $self->isa ("ext::map_per_player");#d#
1672		1996
1673	warn "resetting map ", $self->path;#d#	1997	warn "resetting map ", $self->path;
1674		1998
1675	$self->in_memory (cf::MAP_SWAPPED);	1999	$self->in_memory (cf::MAP_SWAPPED);
1676		2000
1677	# need to save uniques path	2001	# need to save uniques path
1678	unless ($self->{deny_save}) {	2002	unless ($self->{deny_save}) {
…		…
1710	$cf::MAP{$self->path} = $self;	2034	$cf::MAP{$self->path} = $self;
1711		2035
1712	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1713	}	2037	}
1714		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
1715	=item cf::map::unique_maps	2075	=item cf::map::unique_maps
1716		2076
1717	Returns an arrayref of paths of all shared maps that have	2077	Returns an arrayref of paths of all shared maps that have
1718	instantiated unique items. May block.	2078	instantiated unique items. May block.
1719		2079
1720	=cut	2080	=cut
1721		2081
1722	sub unique_maps() {	2082	sub unique_maps() {
1723	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2083	[
1724	or return;	2084	map {
1725
1726	my @paths;
1727
1728	for (@$files) {
1729	utf8::decode $_;	2085	utf8::decode $_;
1730	next if /\.pst$/;	2086	/\.map$/
1731	next unless /^$PATH_SEP/o;	2087	? normalise $_
1732		2088	: ()
1733	push @paths, cf::map::normalise $_;	2089	} @{ aio_readdir $UNIQUEDIR or [] }
1734	}	2090	]
1735
1736	\@paths
1737	}	2091	}
1738		2092
1739	package cf;	2093	package cf;
1740		2094
1741	=back	2095	=back
…		…
1787		2141
1788	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1789		2143
1790	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1791	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1792	} 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 {
1793	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1794	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1795	}	2163	}
1796	}	2164	}
1797		2165
1798	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1799		2167
…		…
1847	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1848		2216
1849	return if UNIVERSAL::isa $self->map, "ext::map_link";	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1850		2218
1851	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1852	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1853		2221
1854	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2222	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1855	}	2223	}
1856		2224
1857	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1858	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1859		2229
1860	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1861		2231
1862	unless ($map) {	2232	unless ($map) {
1863	# restore original map position	2233	# restore original map position
…		…
1886		2256
1887	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1888	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1889	}	2259	}
1890		2260
1891	cf::player->attach (
1892	on_logout => sub {
1893	my ($pl) = @_;
1894
1895	# abort map switching before logout
1896	if ($pl->ob->{_link_pos}) {
1897	cf::sync_job {
1898	$pl->ob->leave_link
1899	};
1900	}
1901	},
1902	on_login => sub {
1903	my ($pl) = @_;
1904
1905	# try to abort aborted map switching on player login :)
1906	# should happen only on crashes
1907	if ($pl->ob->{_link_pos}) {
1908	$pl->ob->enter_link;
1909	(async {
1910	$pl->ob->reply (undef,
1911	"There was an internal problem at your last logout, "
1912	. "the server will try to bring you to your intended destination in a second.",
1913	cf::NDI_RED);
1914	# we need this sleep as the login has a concurrent enter_exit running
1915	# and this sleep increases chances of the player not ending up in scorn
1916	Coro::Timer::sleep 1;
1917	$pl->ob->leave_link;
1918	})->prio (2);
1919	}
1920	},
1921	);
1922
1923	=item $player_object->goto ($path, $x, $y)	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1924		2262
		2263	Moves the player to the given map-path and coordinates by first freezing
		2264	her, loading and preparing them map, calling the provided $check callback
		2265	that has to return the map if sucecssful, and then unfreezes the player on
		2266	the new (success) or old (failed) map position.
		2267
1925	=cut	2268	=cut
		2269
		2270	our $GOTOGEN;
1926		2271
1927	sub cf::object::player::goto {	2272	sub cf::object::player::goto {
1928	my ($self, $path, $x, $y) = @_;	2273	my ($self, $path, $x, $y, $check) = @_;
		2274
		2275	# do generation counting so two concurrent goto's will be executed in-order
		2276	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1929		2277
1930	$self->enter_link;	2278	$self->enter_link;
1931		2279
1932	(async {	2280	(async {
1933	my $map = eval {	2281	my $map = eval {
1934	my $map = cf::map::find $path;	2282	my $map = cf::map::find $path;
		2283
		2284	if ($map) {
1935	$map = $map->customise_for ($self) if $map;	2285	$map = $map->customise_for ($self);
		2286	$map = $check->($map) if $check && $map;
		2287	} else {
		2288	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2289	}
		2290
1936	$map	2291	$map
		2292	};
		2293
		2294	if ($@) {
		2295	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2296	LOG llevError | logBacktrace, Carp::longmess $@;
1937	} or	2297	}
1938	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1939		2298
		2299	if ($gen == $self->{_goto_generation}) {
		2300	delete $self->{_goto_generation};
1940	$self->leave_link ($map, $x, $y);	2301	$self->leave_link ($map, $x, $y);
		2302	}
1941	})->prio (1);	2303	})->prio (1);
1942	}	2304	}
1943		2305
1944	=item $player_object->enter_exit ($exit_object)	2306	=item $player_object->enter_exit ($exit_object)
1945		2307
…		…
1984		2346
1985	$rmp->{random_seed} ||= $exit->random_seed;	2347	$rmp->{random_seed} ||= $exit->random_seed;
1986		2348
1987	my $data = cf::to_json $rmp;	2349	my $data = cf::to_json $rmp;
1988	my $md5 = Digest::MD5::md5_hex $data;	2350	my $md5 = Digest::MD5::md5_hex $data;
1989	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2351	my $meta = "$RANDOMDIR/$md5.meta";
1990		2352
1991	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2353	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1992	aio_write $fh, 0, (length $data), $data, 0;	2354	aio_write $fh, 0, (length $data), $data, 0;
1993	undef $fh;	2355	undef $fh;
1994	aio_rename "$meta~", $meta;	2356	aio_rename "$meta~", $meta;
…		…
2013	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2375	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2014	my $hp = $exit->stats->hp;	2376	my $hp = $exit->stats->hp;
2015	my $sp = $exit->stats->sp;	2377	my $sp = $exit->stats->sp;
2016		2378
2017	$self->enter_link;	2379	$self->enter_link;
		2380
		2381	# if exit is damned, update players death & WoR home-position
		2382	$self->contr->savebed ($slaying, $hp, $sp)
		2383	if $exit->flag (FLAG_DAMNED);
2018		2384
2019	(async {	2385	(async {
2020	$self->deactivate_recursive; # just to be sure	2386	$self->deactivate_recursive; # just to be sure
2021	unless (eval {	2387	unless (eval {
2022	$self->goto ($slaying, $hp, $sp);	2388	$self->goto ($slaying, $hp, $sp);
…		…
2050		2416
2051	utf8::encode $text;	2417	utf8::encode $text;
2052	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2418	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2053	}	2419	}
2054		2420
		2421	=item $client->send_msg ($color, $type, $msg, [extra...])
		2422
		2423	Send a drawinfo or msg packet to the client, formatting the msg for the
		2424	client if neccessary. C<$type> should be a string identifying the type of
		2425	the message, with C<log> being the default. If C<$color> is negative, suppress
		2426	the message unless the client supports the msg packet.
		2427
		2428	=cut
		2429
		2430	sub cf::client::send_msg {
		2431	my ($self, $color, $type, $msg, @extra) = @_;
		2432
		2433	$msg = $self->pl->expand_cfpod ($msg);
		2434
		2435	return unless @extra || length $msg;
		2436
		2437	if ($self->can_msg) {
		2438	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2439	} else {
		2440	# replace some tags by gcfclient-compatible ones
		2441	for ($msg) {
		2442	1 while
		2443	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2444	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2445	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2446	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2447	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2448	}
		2449
		2450	if ($color >= 0) {
		2451	if (0 && $msg =~ /\[/) {
		2452	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2453	} else {
		2454	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2455	$self->send_packet ("drawinfo $color $msg")
		2456	}
		2457	}
		2458	}
		2459	}
		2460
2055	=item $client->ext_event ($type, %msg)	2461	=item $client->ext_event ($type, %msg)
2056		2462
2057	Sends an exti event to the client.	2463	Sends an ext event to the client.
2058		2464
2059	=cut	2465	=cut
2060		2466
2061	sub cf::client::ext_event($$%) {	2467	sub cf::client::ext_event($$%) {
2062	my ($self, $type, %msg) = @_;	2468	my ($self, $type, %msg) = @_;
2063		2469
		2470	return unless $self->extcmd;
		2471
2064	$msg{msgtype} = "event_$type";	2472	$msg{msgtype} = "event_$type";
2065	$self->send_packet ("ext " . cf::to_json \%msg);	2473	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2066	}	2474	}
2067		2475
2068	=item $success = $client->query ($flags, "text", \&cb)	2476	=item $success = $client->query ($flags, "text", \&cb)
2069		2477
2070	Queues a query to the client, calling the given callback with	2478	Queues a query to the client, calling the given callback with
2071	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2479	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2072	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2480	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2073		2481
2074	Queries can fail, so check the return code. Or don't, as queries will become	2482	Queries can fail, so check the return code. Or don't, as queries will
2075	reliable at some point in the future.	2483	become reliable at some point in the future.
2076		2484
2077	=cut	2485	=cut
2078		2486
2079	sub cf::client::query {	2487	sub cf::client::query {
2080	my ($self, $flags, $text, $cb) = @_;	2488	my ($self, $flags, $text, $cb) = @_;
…		…
2088	utf8::encode $text;	2496	utf8::encode $text;
2089	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2497	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2090		2498
2091	$self->send_packet ($self->{query_queue}[0][0])	2499	$self->send_packet ($self->{query_queue}[0][0])
2092	if @{ $self->{query_queue} } == 1;	2500	if @{ $self->{query_queue} } == 1;
		2501
		2502	1
2093	}	2503	}
2094		2504
2095	cf::client->attach (	2505	cf::client->attach (
		2506	on_connect => sub {
		2507	my ($ns) = @_;
		2508
		2509	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2510	},
2096	on_reply => sub {	2511	on_reply => sub {
2097	my ($ns, $msg) = @_;	2512	my ($ns, $msg) = @_;
2098		2513
2099	# this weird shuffling is so that direct followup queries	2514	# this weird shuffling is so that direct followup queries
2100	# get handled first	2515	# get handled first
…		…
2112	} else {	2527	} else {
2113	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2528	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2114	}	2529	}
2115	}	2530	}
2116	},	2531	},
		2532	on_exticmd => sub {
		2533	my ($ns, $buf) = @_;
		2534
		2535	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2536
		2537	if (ref $msg) {
		2538	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2539	if (my %reply = $cb->($ns, $msg)) {
		2540	$reply{msgid} = $msg->{msgid};
		2541	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2542	}
		2543	}
		2544	} else {
		2545	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2546	}
		2547
		2548	cf::override;
		2549	},
2117	);	2550	);
2118		2551
2119	=item $client->async (\&cb)	2552	=item $client->async (\&cb)
2120		2553
2121	Create a new coroutine, running the specified callback. The coroutine will	2554	Create a new coroutine, running the specified callback. The coroutine will
…		…
2170		2603
2171	=pod	2604	=pod
2172		2605
2173	The following functions and methods are available within a safe environment:	2606	The following functions and methods are available within a safe environment:
2174		2607
2175	cf::object contr pay_amount pay_player map	2608	cf::object
		2609	contr pay_amount pay_player map x y force_find force_add
		2610	insert remove
		2611
2176	cf::object::player player	2612	cf::object::player
2177	cf::player peaceful	2613	player
2178	cf::map trigger	2614
		2615	cf::player
		2616	peaceful
		2617
		2618	cf::map
		2619	trigger
2179		2620
2180	=cut	2621	=cut
2181		2622
2182	for (	2623	for (
2183	["cf::object" => qw(contr pay_amount pay_player map)],	2624	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2625	insert remove)],
2184	["cf::object::player" => qw(player)],	2626	["cf::object::player" => qw(player)],
2185	["cf::player" => qw(peaceful)],	2627	["cf::player" => qw(peaceful)],
2186	["cf::map" => qw(trigger)],	2628	["cf::map" => qw(trigger)],
2187	) {	2629	) {
2188	no strict 'refs';	2630	no strict 'refs';
…		…
2259	=back	2701	=back
2260		2702
2261	=cut	2703	=cut
2262		2704
2263	#############################################################################	2705	#############################################################################
2264
2265	=head2 EXTENSION DATABASE SUPPORT
2266
2267	Crossfire maintains a very simple database for extension use. It can
2268	currently store anything that can be serialised using Storable, which
2269	excludes objects.
2270
2271	The parameter C<$family> should best start with the name of the extension
2272	using it, it should be unique.
2273
2274	=over 4
2275
2276	=item $value = cf::db_get $family => $key
2277
2278	Returns a single value from the database.
2279
2280	=item cf::db_put $family => $key => $value
2281
2282	Stores the given C<$value> in the family.
2283
2284	=cut
2285
2286	our $DB;
2287
2288	sub db_init {
2289	unless ($DB) {
2290	$DB = BDB::db_create $DB_ENV;
2291
2292	cf::sync_job {
2293	eval {
2294	$DB->set_flags (BDB::CHKSUM);
2295
2296	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2297	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2298	cf::cleanup "db_open(db): $!" if $!;
2299	};
2300	cf::cleanup "db_open(db): $@" if $@;
2301	};
2302
2303	my $path = cf::localdir . "/database.pst";
2304	if (stat $path) {
2305	cf::sync_job {
2306	my $pst = Storable::retrieve $path;
2307
2308	cf::db_put (board => data => $pst->{board});
2309	cf::db_put (guildrules => data => $pst->{guildrules});
2310	cf::db_put (rent => balance => $pst->{rent}{balance});
2311	BDB::db_env_txn_checkpoint $DB_ENV;
2312
2313	unlink $path;
2314	};
2315	}
2316	}
2317	}
2318
2319	sub db_get($$) {
2320	my $key = "$_[0]/$_[1]";
2321
2322	cf::sync_job {
2323	BDB::db_get $DB, undef, $key, my $data;
2324
2325	$! ? ()
2326	: Compress::LZF::sthaw $data
2327	}
2328	}
2329
2330	sub db_put($$$) {
2331	BDB::dbreq_pri 4;
2332	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2333	}
2334
2335	#############################################################################
2336	# the server's init and main functions	2706	# the server's init and main functions
2337		2707
2338	sub load_facedata {	2708	sub load_facedata($) {
2339	my $path = sprintf "%s/facedata", cf::datadir;	2709	my ($path) = @_;
2340		2710
2341	warn "loading facedata from $path\n";	2711	warn "loading facedata from $path\n";
2342		2712
2343	my $facedata;	2713	my $facedata;
2344	0 < aio_load $path, $facedata	2714	0 < aio_load $path, $facedata
…		…
2352	{	2722	{
2353	my $faces = $facedata->{faceinfo};	2723	my $faces = $facedata->{faceinfo};
2354		2724
2355	while (my ($face, $info) = each %$faces) {	2725	while (my ($face, $info) = each %$faces) {
2356	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2726	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2357	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2727	cf::face::set_visibility $idx, $info->{visibility};
		2728	cf::face::set_magicmap $idx, $info->{magicmap};
2358	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2729	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2359	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2730	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2360	Coro::cede;	2731
		2732	cf::cede_to_tick;
2361	}	2733	}
2362		2734
2363	while (my ($face, $info) = each %$faces) {	2735	while (my ($face, $info) = each %$faces) {
2364	next unless $info->{smooth};	2736	next unless $info->{smooth};
2365	my $idx = cf::face::find $face	2737	my $idx = cf::face::find $face
2366	or next;	2738	or next;
2367	if (my $smooth = cf::face::find $info->{smooth}) {	2739	if (my $smooth = cf::face::find $info->{smooth}) {
		2740	cf::face::set_smooth $idx, $smooth;
2368	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2741	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2369	} else {	2742	} else {
2370	warn "smooth face '$info->{smooth}' not found for face '$face'";	2743	warn "smooth face '$info->{smooth}' not found for face '$face'";
2371	}	2744	}
2372	Coro::cede;	2745
		2746	cf::cede_to_tick;
2373	}	2747	}
2374	}	2748	}
2375		2749
2376	{	2750	{
2377	my $anims = $facedata->{animinfo};	2751	my $anims = $facedata->{animinfo};
2378		2752
2379	while (my ($anim, $info) = each %$anims) {	2753	while (my ($anim, $info) = each %$anims) {
2380	cf::anim::set $anim, $info->{frames}, $info->{facings};	2754	cf::anim::set $anim, $info->{frames}, $info->{facings};
2381	Coro::cede;	2755	cf::cede_to_tick;
2382	}	2756	}
2383		2757
2384	cf::anim::invalidate_all; # d'oh	2758	cf::anim::invalidate_all; # d'oh
2385	}	2759	}
2386		2760
		2761	{
		2762	# TODO: for gcfclient pleasure, we should give resources
		2763	# that gcfclient doesn't grok a >10000 face index.
		2764	my $res = $facedata->{resource};
		2765	my $enc = JSON::XS->new->utf8->canonical;
		2766
		2767	while (my ($name, $info) = each %$res) {
		2768	my $meta = $enc->encode ({
		2769	name => $name,
		2770	type => $info->{type},
		2771	copyright => $info->{copyright}, #TODO#
		2772	});
		2773	my $data = pack "(w/a*)*", $meta, $info->{data};
		2774	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2775
		2776	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2777	cf::face::set_type $idx, 1;
		2778	cf::face::set_data $idx, 0, $data, $chk;
		2779
		2780	cf::cede_to_tick;
		2781	}
		2782	}
		2783
2387	1	2784	1
2388	}	2785	}
2389		2786
		2787	sub reload_regions {
		2788	load_resource_file "$MAPDIR/regions"
		2789	or die "unable to load regions file\n";
		2790
		2791	for (cf::region::list) {
		2792	$_->{match} = qr/$_->{match}/
		2793	if exists $_->{match};
		2794	}
		2795	}
		2796
		2797	sub reload_facedata {
		2798	load_facedata "$DATADIR/facedata"
		2799	or die "unable to load facedata\n";
		2800	}
		2801
		2802	sub reload_archetypes {
		2803	load_resource_file "$DATADIR/archetypes"
		2804	or die "unable to load archetypes\n";
		2805	#d# NEED to laod twice to resolve forward references
		2806	# this really needs to be done in an extra post-pass
		2807	# (which needs to be synchronous, so solve it differently)
		2808	load_resource_file "$DATADIR/archetypes"
		2809	or die "unable to load archetypes\n";
		2810	}
		2811
		2812	sub reload_treasures {
		2813	load_resource_file "$DATADIR/treasures"
		2814	or die "unable to load treasurelists\n";
		2815	}
		2816
2390	sub reload_resources {	2817	sub reload_resources {
2391	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2818	warn "reloading resource files...\n";
2392	or die "unable to load regions file\n";#d#	2819
		2820	reload_regions;
2393	load_facedata	2821	reload_facedata;
2394	or die "unable to load facedata\n";#d#	2822	#reload_archetypes;#d#
		2823	reload_archetypes;
		2824	reload_treasures;
		2825
		2826	warn "finished reloading resource files\n";
2395	}	2827	}
2396		2828
2397	sub init {	2829	sub init {
2398	reload_resources;	2830	reload_resources;
2399	}	2831	}
2400		2832
2401	sub cfg_load {	2833	sub cfg_load {
2402	open my $fh, "<:utf8", cf::confdir . "/config"	2834	open my $fh, "<:utf8", "$CONFDIR/config"
2403	or return;	2835	or return;
2404		2836
2405	local $/;	2837	local $/;
2406	*CFG = YAML::Syck::Load <$fh>;	2838	*CFG = YAML::Syck::Load <$fh>;
2407		2839
…		…
2452	},	2884	},
2453	);	2885	);
2454	}	2886	}
2455	}	2887	}
2456		2888
		2889	sub write_runtime {
		2890	my $runtime = "$LOCALDIR/runtime";
		2891
		2892	# first touch the runtime file to show we are still running:
		2893	# the fsync below can take a very very long time.
		2894
		2895	IO::AIO::aio_utime $runtime, undef, undef;
		2896
		2897	my $guard = cf::lock_acquire "write_runtime";
		2898
		2899	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2900	or return;
		2901
		2902	my $value = $cf::RUNTIME + 90 + 10;
		2903	# 10 is the runtime save interval, for a monotonic clock
		2904	# 60 allows for the watchdog to kill the server.
		2905
		2906	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2907	and return;
		2908
		2909	# always fsync - this file is important
		2910	aio_fsync $fh
		2911	and return;
		2912
		2913	# touch it again to show we are up-to-date
		2914	aio_utime $fh, undef, undef;
		2915
		2916	close $fh
		2917	or return;
		2918
		2919	aio_rename "$runtime~", $runtime
		2920	and return;
		2921
		2922	warn "runtime file written.\n";
		2923
		2924	1
		2925	}
		2926
2457	sub emergency_save() {	2927	sub emergency_save() {
2458	my $freeze_guard = cf::freeze_mainloop;	2928	my $freeze_guard = cf::freeze_mainloop;
2459		2929
2460	warn "enter emergency perl save\n";	2930	warn "enter emergency perl save\n";
2461		2931
…		…
2492		2962
2493	warn Carp::longmess "post_cleanup backtrace"	2963	warn Carp::longmess "post_cleanup backtrace"
2494	if $make_core;	2964	if $make_core;
2495	}	2965	}
2496		2966
2497	sub reload() {	2967	sub do_reload_perl() {
2498	# can/must only be called in main	2968	# can/must only be called in main
2499	if ($Coro::current != $Coro::main) {	2969	if ($Coro::current != $Coro::main) {
2500	warn "can only reload from main coroutine";	2970	warn "can only reload from main coroutine";
2501	return;	2971	return;
2502	}	2972	}
…		…
2536	%EXT_CORO = ();	3006	%EXT_CORO = ();
2537		3007
2538	warn "removing commands";	3008	warn "removing commands";
2539	%COMMAND = ();	3009	%COMMAND = ();
2540		3010
2541	warn "removing ext commands";	3011	warn "removing ext/exti commands";
2542	%EXTCMD = ();	3012	%EXTCMD = ();
		3013	%EXTICMD = ();
2543		3014
2544	warn "unloading/nuking all extensions";	3015	warn "unloading/nuking all extensions";
2545	for my $pkg (@EXTS) {	3016	for my $pkg (@EXTS) {
2546	warn "... unloading $pkg";	3017	warn "... unloading $pkg";
2547		3018
…		…
2577	Symbol::delete_package "safe::$_"	3048	Symbol::delete_package "safe::$_"
2578	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3049	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2579		3050
2580	warn "unloading cf.pm \"a bit\"";	3051	warn "unloading cf.pm \"a bit\"";
2581	delete $INC{"cf.pm"};	3052	delete $INC{"cf.pm"};
		3053	delete $INC{"cf/pod.pm"};
2582		3054
2583	# don't, removes xs symbols, too,	3055	# don't, removes xs symbols, too,
2584	# and global variables created in xs	3056	# and global variables created in xs
2585	#Symbol::delete_package __PACKAGE__;	3057	#Symbol::delete_package __PACKAGE__;
2586		3058
…		…
2601	warn "reattaching attachments to maps";	3073	warn "reattaching attachments to maps";
2602	reattach $_ for values %MAP;	3074	reattach $_ for values %MAP;
2603	warn "reattaching attachments to players";	3075	warn "reattaching attachments to players";
2604	reattach $_ for values %PLAYER;	3076	reattach $_ for values %PLAYER;
2605		3077
2606	warn "loading reloadable resources";
2607	reload_resources;
2608
2609	warn "leaving sync_job";	3078	warn "leaving sync_job";
2610		3079
2611	1	3080	1
2612	} or do {	3081	} or do {
2613	warn $@;	3082	warn $@;
…		…
2618	warn "reloaded";	3087	warn "reloaded";
2619	};	3088	};
2620		3089
2621	our $RELOAD_WATCHER; # used only during reload	3090	our $RELOAD_WATCHER; # used only during reload
2622		3091
		3092	sub reload_perl() {
		3093	# doing reload synchronously and two reloads happen back-to-back,
		3094	# coro crashes during coro_state_free->destroy here.
		3095
		3096	$RELOAD_WATCHER ||= Event->timer (
		3097	reentrant => 0,
		3098	after => 0,
		3099	data => WF_AUTOCANCEL,
		3100	cb => sub {
		3101	do_reload_perl;
		3102	undef $RELOAD_WATCHER;
		3103	},
		3104	);
		3105	}
		3106
2623	register_command "reload" => sub {	3107	register_command "reload" => sub {
2624	my ($who, $arg) = @_;	3108	my ($who, $arg) = @_;
2625		3109
2626	if ($who->flag (FLAG_WIZ)) {	3110	if ($who->flag (FLAG_WIZ)) {
2627	$who->message ("reloading server.");	3111	$who->message ("reloading server.");
2628		3112	async { reload_perl };
2629	# doing reload synchronously and two reloads happen back-to-back,
2630	# coro crashes during coro_state_free->destroy here.
2631
2632	$RELOAD_WATCHER ||= Event->timer (
2633	reentrant => 0,
2634	after => 0,
2635	data => WF_AUTOCANCEL,
2636	cb => sub {
2637	reload;
2638	undef $RELOAD_WATCHER;
2639	},
2640	);
2641	}	3113	}
2642	};	3114	};
2643		3115
2644	unshift @INC, $LIBDIR;	3116	unshift @INC, $LIBDIR;
2645		3117
2646	my $bug_warning = 0;	3118	my $bug_warning = 0;
2647		3119
		3120	our @WAIT_FOR_TICK;
		3121	our @WAIT_FOR_TICK_BEGIN;
		3122
		3123	sub wait_for_tick {
		3124	return unless $TICK_WATCHER->is_active;
		3125	return if $Coro::current == $Coro::main;
		3126
		3127	my $signal = new Coro::Signal;
		3128	push @WAIT_FOR_TICK, $signal;
		3129	$signal->wait;
		3130	}
		3131
		3132	sub wait_for_tick_begin {
		3133	return unless $TICK_WATCHER->is_active;
		3134	return if $Coro::current == $Coro::main;
		3135
		3136	my $signal = new Coro::Signal;
		3137	push @WAIT_FOR_TICK_BEGIN, $signal;
		3138	$signal->wait;
		3139	}
		3140
		3141	my $min = 1e6;#d#
		3142	my $avg = 10;
2648	$TICK_WATCHER = Event->timer (	3143	$TICK_WATCHER = Event->timer (
2649	reentrant => 0,	3144	reentrant => 0,
2650	parked => 1,	3145	parked => 1,
2651	prio => 0,	3146	prio => 0,
2652	at => $NEXT_TICK || $TICK,	3147	at => $NEXT_TICK || $TICK,
…		…
2656	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3151	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2657	unless ++$bug_warning > 10;	3152	unless ++$bug_warning > 10;
2658	return;	3153	return;
2659	}	3154	}
2660		3155
2661	$NOW = Event::time;	3156	$NOW = $tick_start = Event::time;
2662		3157
2663	cf::server_tick; # one server iteration	3158	cf::server_tick; # one server iteration
		3159
		3160	0 && sync_job {#d#
		3161	for(1..10) {
		3162	my $t = Event::time;
		3163	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3164	or die;
		3165
		3166	$map->width (50);
		3167	$map->height (50);
		3168	$map->alloc;
		3169	$map->_load_objects ("/tmp/x.map", 1);
		3170	my $t = Event::time - $t;
		3171
		3172	#next unless $t < 0.0013;#d#
		3173	if ($t < $min) {
		3174	$min = $t;
		3175	}
		3176	$avg = $avg * 0.99 + $t * 0.01;
		3177	}
		3178	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3179	exit 0;
		3180	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3181	};
		3182
2664	$RUNTIME += $TICK;	3183	$RUNTIME += $TICK;
2665	$NEXT_TICK += $TICK;	3184	$NEXT_TICK += $TICK;
2666		3185
2667	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3186	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2668	$NEXT_RUNTIME_WRITE = $NOW + 10;	3187	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2670	write_runtime	3189	write_runtime
2671	or warn "ERROR: unable to write runtime file: $!";	3190	or warn "ERROR: unable to write runtime file: $!";
2672	};	3191	};
2673	}	3192	}
2674		3193
2675	$WAIT_FOR_TICK->broadcast;
2676	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2677
2678	# my $AFTER = Event::time;	3194	# my $AFTER = Event::time;
2679	# warn $AFTER - $NOW;#d#	3195	# warn $AFTER - $NOW;#d#
2680		3196
		3197	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3198	$sig->send;
		3199	}
		3200	while (my $sig = shift @WAIT_FOR_TICK) {
		3201	$sig->send;
		3202	}
		3203
		3204	$NOW = Event::time;
		3205
2681	# if we are delayed by four ticks or more, skip them all	3206	# if we are delayed by four ticks or more, skip them all
2682	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3207	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2683		3208
2684	$TICK_WATCHER->at ($NEXT_TICK);	3209	$TICK_WATCHER->at ($NEXT_TICK);
2685	$TICK_WATCHER->start;	3210	$TICK_WATCHER->start;
		3211
		3212	$LOAD = ($NOW - $tick_start) / $TICK;
		3213	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3214
		3215	_post_tick;
		3216
		3217
2686	},	3218	},
2687	);	3219	);
2688		3220
2689	{	3221	{
2690	BDB::max_poll_time $TICK * 0.1;	3222	BDB::max_poll_time $TICK * 0.1;
…		…
2718		3250
2719	cf::sync_job {	3251	cf::sync_job {
2720	eval {	3252	eval {
2721	BDB::db_env_open	3253	BDB::db_env_open
2722	$DB_ENV,	3254	$DB_ENV,
2723	$BDB_ENV_DIR,	3255	$BDBDIR,
2724	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3256	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2725	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3257	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2726	0666;	3258	0666;
2727		3259
2728	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3260	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2729		3261
2730	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3262	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2731	$DB_ENV->set_lk_detect;	3263	$DB_ENV->set_lk_detect;
2732	};	3264	};
2733		3265
…		…
2749	prio => 6,	3281	prio => 6,
2750	cb => \&IO::AIO::poll_cb,	3282	cb => \&IO::AIO::poll_cb,
2751	);	3283	);
2752	}	3284	}
2753		3285
		3286	my $_log_backtrace;
		3287
		3288	sub _log_backtrace {
		3289	my ($msg, @addr) = @_;
		3290
		3291	$msg =~ s/\n//;
		3292
		3293	# limit the # of concurrent backtraces
		3294	if ($_log_backtrace < 2) {
		3295	++$_log_backtrace;
		3296	async {
		3297	my @bt = fork_call {
		3298	@addr = map { sprintf "%x", $_ } @addr;
		3299	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3300	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3301	or die "addr2line: $!";
		3302
		3303	my @funcs;
		3304	my @res = <$fh>;
		3305	chomp for @res;
		3306	while (@res) {
		3307	my ($func, $line) = splice @res, 0, 2, ();
		3308	push @funcs, "[$func] $line";
		3309	}
		3310
		3311	@funcs
		3312	};
		3313
		3314	LOG llevInfo, "[ABT] $msg\n";
		3315	LOG llevInfo, "[ABT] $_\n" for @bt;
		3316	--$_log_backtrace;
		3317	};
		3318	} else {
		3319	LOG llevInfo, "[ABT] $msg\n";
		3320	LOG llevInfo, "[ABT] [suppressed]\n";
		3321	}
		3322	}
		3323
		3324	# load additional modules
		3325	use cf::pod;
		3326
2754	END { cf::emergency_save }	3327	END { cf::emergency_save }
2755		3328
2756	1	3329	1
2757		3330

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