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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.220 by root, Sat Feb 17 23:54:35 2007 UTC vs.
Revision 1.287 by root, Mon Jun 25 05:43:45 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.5 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
20	use BDB ();	25	use BDB ();
21	use Data::Dumper;	26	use Data::Dumper;
22	use Digest::MD5;	27	use Digest::MD5;
23	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
24	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
25	use YAML::Syck ();
26	use Time::HiRes;	31	use Time::HiRes;
27	use Compress::LZF;	32	use Compress::LZF;
28		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		39
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		41
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
37		44
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		48
40	our %COMMAND = ();	49	our %COMMAND = ();
41	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
42		51
43	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	55	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	56	our %EXT_MAP = (); # pluggable maps
47		57
		58	our $RELOAD; # number of reloads so far
48	our @EVENT;	59	our @EVENT;
49	our $LIBDIR = datadir . "/ext";
50		60
51	our $TICK = MAX_TIME * 1e-6;	61	our $CONFDIR = confdir;
		62	our $DATADIR = datadir;
		63	our $LIBDIR = "$DATADIR/ext";
		64	our $PODDIR = "$DATADIR/pod";
		65	our $MAPDIR = "$DATADIR/" . mapdir;
		66	our $LOCALDIR = localdir;
		67	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		68	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		69	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		70	our $RANDOMDIR = "$LOCALDIR/random";
		71	our $BDBDIR = "$LOCALDIR/db";
		72
		73	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
52	our $TICK_WATCHER;	74	our $TICK_WATCHER;
53	our $AIO_POLL_WATCHER;	75	our $AIO_POLL_WATCHER;
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	77	our $NEXT_TICK;
56	our $NOW;	78	our $NOW;
…		…
65	our $RUNTIME;	87	our $RUNTIME;
66		88
67	our %PLAYER; # all users	89	our %PLAYER; # all users
68	our %MAP; # all maps	90	our %MAP; # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	91	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		92
76	# used to convert map paths into valid unix filenames by replacing / by ∕	93	# used to convert map paths into valid unix filenames by replacing / by ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	94	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		95
		96	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		97	our $LOADAVG; # same thing, but with alpha-smoothing
		98	our $tick_start; # for load detecting purposes
		99
79	binmode STDOUT;	100	binmode STDOUT;
80	binmode STDERR;	101	binmode STDERR;
81		102
82	# read virtual server time, if available	103	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	104	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
84	open my $fh, "<", cf::localdir . "/runtime"	105	open my $fh, "<", "$LOCALDIR/runtime"
85	or die "unable to read runtime file: $!";	106	or die "unable to read runtime file: $!";
86	$RUNTIME = <$fh> + 0.;	107	$RUNTIME = <$fh> + 0.;
87	}	108	}
88		109
89	mkdir cf::localdir;	110	mkdir $_
90	mkdir cf::localdir . "/" . cf::playerdir;	111	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
91	mkdir cf::localdir . "/" . cf::tmpdir;
92	mkdir cf::localdir . "/" . cf::uniquedir;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		112
96	our $EMERGENCY_POSITION;	113	our $EMERGENCY_POSITION;
97		114
98	sub cf::map::normalise;	115	sub cf::map::normalise;
99		116
…		…
110	=item $cf::RUNTIME	127	=item $cf::RUNTIME
111		128
112	The time this server has run, starts at 0 and is increased by $cf::TICK on	129	The time this server has run, starts at 0 and is increased by $cf::TICK on
113	every server tick.	130	every server tick.
114		131
115	=item $cf::LIBDIR	132	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		133	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		134	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
116		135
117	The perl library directory, where extensions and cf-specific modules can	136	Various directories - "/etc", read-only install directory, perl-library
118	be found. It will be added to C<@INC> automatically.	137	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		138	unique-items directory, player file directory, random maps directory and
		139	database environment.
119		140
120	=item $cf::NOW	141	=item $cf::NOW
121		142
122	The time of the last (current) server tick.	143	The time of the last (current) server tick.
123		144
124	=item $cf::TICK	145	=item $cf::TICK
125		146
126	The interval between server ticks, in seconds.	147	The interval between server ticks, in seconds.
		148
		149	=item $cf::LOADAVG
		150
		151	The current CPU load on the server (alpha-smoothed), as a value between 0
		152	(none) and 1 (overloaded), indicating how much time is spent on processing
		153	objects per tick. Healthy values are < 0.5.
		154
		155	=item $cf::LOAD
		156
		157	The raw value load value from the last tick.
127		158
128	=item %cf::CFG	159	=item %cf::CFG
129		160
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	161	Configuration for the server, loaded from C</etc/crossfire/config>, or
131	from wherever your confdir points to.	162	from wherever your confdir points to.
132		163
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	164	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		165
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	166	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	167	returns directly I<after> the tick processing (and consequently, can only wake one process
137	processing has been done. Call C<< ->wait >> on them to maximise the	168	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138	window of cpu time available, or simply to synchronise to the server tick.
139		169
140	=back	170	=back
141		171
142	=cut	172	=cut
143		173
144	BEGIN {	174	BEGIN {
145	*CORE::GLOBAL::warn = sub {	175	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	176	my $msg = join "", @_;
147	utf8::encode $msg;
148		177
149	$msg .= "\n"	178	$msg .= "\n"
150	unless $msg =~ /\n$/;	179	unless $msg =~ /\n$/;
151		180
		181	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		182
		183	utf8::encode $msg;
152	LOG llevError, $msg;	184	LOG llevError, $msg;
153	};	185	};
154	}	186	}
155		187
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	188	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	189	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	190	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	191	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	192	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		193	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
161	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	194	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
162		195
163	# we bless all objects into (empty) derived classes to force a method lookup	196	# we bless all objects into (empty) derived classes to force a method lookup
164	# within the Safe compartment.	197	# within the Safe compartment.
165	for my $pkg (qw(	198	for my $pkg (qw(
166	cf::global cf::attachable	199	cf::global cf::attachable
…		…
174	}	207	}
175		208
176	$Event::DIED = sub {	209	$Event::DIED = sub {
177	warn "error in event callback: @_";	210	warn "error in event callback: @_";
178	};	211	};
		212
		213	#############################################################################
179		214
180	=head2 UTILITY FUNCTIONS	215	=head2 UTILITY FUNCTIONS
181		216
182	=over 4	217	=over 4
183		218
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	237	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	238	$d
204	} || "[unable to dump $_[0]: '$@']";	239	} || "[unable to dump $_[0]: '$@']";
205	}	240	}
206		241
207	use JSON::Syck (); # TODO# replace by JSON::PC once working	242	use JSON::XS ();
208		243
209	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
210		245
211	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
212		247
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
221		249
222	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
223		251
224	=cut	252	=cut
225		253
226	sub to_json($) {	254	our $json_coder = JSON::XS->new->convert_blessed->utf8;
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	255
228	JSON::Syck::Dump $_[0]	256	sub to_json ($) { $json_coder->encode ($_[0]) }
229	}	257	sub from_json ($) { $json_coder->decode ($_[0]) }
230		258
231	=item cf::lock_wait $string	259	=item cf::lock_wait $string
232		260
233	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
234		262
…		…
240	returned.	268	returned.
241		269
242	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
243	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
244		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
245	=cut	277	=cut
246		278
247	our %LOCK;	279	our %LOCK;
248		280
249	sub lock_wait($) {	281	sub lock_wait($) {
…		…
266		298
267	Coro::guard {	299	Coro::guard {
268	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
270	}	302	}
		303	}
		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
271	}	309	}
272		310
273	sub freeze_mainloop {	311	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
275		313
…		…
290		328
291	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
292		330
293	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
294		332
295	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
298		337
299	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
302	fast or be very important.	341	fast or be very important.
…		…
305		344
306	sub sync_job(&) {	345	sub sync_job(&) {
307	my ($job) = @_;	346	my ($job) = @_;
308		347
309	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
310	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
312		353
313	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
314	# (but this is cancel-safe)	355	# (but this is cancel-safe)
…		…
325		366
326	while ($busy) {	367	while ($busy) {
327	Coro::cede or Event::one_event;	368	Coro::cede or Event::one_event;
328	}	369	}
329		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
330	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
331	} else {	379	} else {
332	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
333		381
334	$job->()	382	$job->()
…		…
353	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
354		402
355	$coro	403	$coro
356	}	404	}
357		405
358	sub write_runtime {	406	=item fork_call { }, $args
359	my $guard = cf::lock_acquire "write_runtime";
360		407
361	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.
362		412
363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	413	=cut
364	or return;
365		414
366	my $value = $cf::RUNTIME + 90 + 10;	415	sub fork_call(&@) {
367	# 10 is the runtime save interval, for a monotonic clock	416	my ($cb, @args) = @_;
368	# 60 allows for the watchdog to kill the server.
369		417
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0	418	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
371	and return;	419	# or die "socketpair: $!";
		420	pipe my $fh1, my $fh2
		421	or die "pipe: $!";
372		422
373	# always fsync - this file is important	423	if (my $pid = fork) {
374	aio_fsync $fh
375	and return;
376
377	close $fh	424	close $fh2;
378	or return;
379		425
380	aio_rename "$runtime~", $runtime	426	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
381	and return;	427	$res = Coro::Storable::thaw $res;
382		428
		429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		430
		431	die $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	eval {
		439	close $fh1;
		440
		441	my @res = eval { $cb->(@args) };
		442	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		443	};
		444
		445	warn $@ if $@;
		446	_exit 0;
383	1	447	}
		448	}
		449
		450	=item $value = cf::db_get $family => $key
		451
		452	Returns a single value from the environment database.
		453
		454	=item cf::db_put $family => $key => $value
		455
		456	Stores the given C<$value> in the family. It can currently store binary
		457	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		458
		459	=cut
		460
		461	our $DB;
		462
		463	sub db_init {
		464	unless ($DB) {
		465	$DB = BDB::db_create $DB_ENV;
		466
		467	cf::sync_job {
		468	eval {
		469	$DB->set_flags (BDB::CHKSUM);
		470
		471	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		472	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		473	cf::cleanup "db_open(db): $!" if $!;
		474	};
		475	cf::cleanup "db_open(db): $@" if $@;
		476	};
		477	}
		478	}
		479
		480	sub db_get($$) {
		481	my $key = "$_[0]/$_[1]";
		482
		483	cf::sync_job {
		484	BDB::db_get $DB, undef, $key, my $data;
		485
		486	$! ? ()
		487	: $data
		488	}
		489	}
		490
		491	sub db_put($$$) {
		492	BDB::dbreq_pri 4;
		493	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		494	}
		495
		496	=item cf::cache $id => [$paths...], $processversion => $process
		497
		498	Generic caching function that returns the value of the resource $id,
		499	caching and regenerating as required.
		500
		501	This function can block.
		502
		503	=cut
		504
		505	sub cache {
		506	my ($id, $src, $processversion, $process) = @_;
		507
		508	my $meta =
		509	join "\x00",
		510	$processversion,
		511	map {
		512	aio_stat $_
		513	and Carp::croak "$_: $!";
		514
		515	($_, (stat _)[7,9])
		516	} @$src;
		517
		518	my $dbmeta = db_get cache => "$id/meta";
		519	if ($dbmeta ne $meta) {
		520	# changed, we may need to process
		521
		522	my @data;
		523	my $md5;
		524
		525	for (0 .. $#$src) {
		526	0 <= aio_load $src->[$_], $data[$_]
		527	or Carp::croak "$src->[$_]: $!";
		528	}
		529
		530	# if processing is expensive, check
		531	# checksum first
		532	if (1) {
		533	$md5 =
		534	join "\x00",
		535	$processversion,
		536	map {
		537	Coro::cede;
		538	($src->[$_], Digest::MD5::md5_hex $data[$_])
		539	} 0.. $#$src;
		540
		541
		542	my $dbmd5 = db_get cache => "$id/md5";
		543	if ($dbmd5 eq $md5) {
		544	db_put cache => "$id/meta", $meta;
		545
		546	return db_get cache => "$id/data";
		547	}
		548	}
		549
		550	my $t1 = Time::HiRes::time;
		551	my $data = $process->(\@data);
		552	my $t2 = Time::HiRes::time;
		553
		554	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		555
		556	db_put cache => "$id/data", $data;
		557	db_put cache => "$id/md5" , $md5;
		558	db_put cache => "$id/meta", $meta;
		559
		560	return $data;
		561	}
		562
		563	db_get cache => "$id/data"
		564	}
		565
		566	=item cf::datalog type => key => value, ...
		567
		568	Log a datalog packet of the given type with the given key-value pairs.
		569
		570	=cut
		571
		572	sub datalog($@) {
		573	my ($type, %kv) = @_;
		574	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384	}	575	}
385		576
386	=back	577	=back
387		578
388	=cut	579	=cut
…		…
395	attach callbacks/event handlers (a collection of which is called an "attachment")	586	attach callbacks/event handlers (a collection of which is called an "attachment")
396	to it. All such attachable objects support the following methods.	587	to it. All such attachable objects support the following methods.
397		588
398	In the following description, CLASS can be any of C<global>, C<object>	589	In the following description, CLASS can be any of C<global>, C<object>
399	C<player>, C<client> or C<map> (i.e. the attachable objects in	590	C<player>, C<client> or C<map> (i.e. the attachable objects in
400	crossfire+).	591	Crossfire TRT).
401		592
402	=over 4	593	=over 4
403		594
404	=item $attachable->attach ($attachment, key => $value...)	595	=item $attachable->attach ($attachment, key => $value...)
405		596
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	759	$registry = $CB_TYPE[$object_type] ||= [];
569		760
570	} elsif ($type eq "subtype") {	761	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	762	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	763	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	764	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		765
575	} elsif ($type eq "package") {	766	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	767	my $pkg = shift @arg;
577		768
578	while (my ($name, $id) = each %cb_id) {	769	while (my ($name, $id) = each %cb_id) {
…		…
607	_attach $registry, $klass, @attach;	798	_attach $registry, $klass, @attach;
608	}	799	}
609		800
610	$obj->{$name} = \%arg;	801	$obj->{$name} = \%arg;
611	} else {	802	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	803	warn "object uses attachment '$name' which is not available, postponing.\n";
613	}	804	}
614		805
615	$obj->{_attachment}{$name} = undef;	806	$obj->{_attachment}{$name} = undef;
616	}	807	}
617		808
…		…
619	if (ref $_[0]) {	810	if (ref $_[0]) {
620	_object_attach @_;	811	_object_attach @_;
621	} else {	812	} else {
622	_attach shift->_attach_registry, @_;	813	_attach shift->_attach_registry, @_;
623	}	814	}
		815	_recalc_want;
624	};	816	};
625		817
626	# all those should be optimised	818	# all those should be optimised
627	sub cf::attachable::detach {	819	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	820	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	823	delete $obj->{_attachment}{$name};
632	reattach ($obj);	824	reattach ($obj);
633	} else {	825	} else {
634	Carp::croak "cannot, currently, detach class attachments";	826	Carp::croak "cannot, currently, detach class attachments";
635	}	827	}
		828	_recalc_want;
636	};	829	};
637		830
638	sub cf::attachable::attached {	831	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
640		833
…		…
813	or return;	1006	or return;
814	$av = eval { (Storable::thaw $av)->{objs} };	1007	$av = eval { (Storable::thaw $av)->{objs} };
815	}	1008	}
816		1009
817	warn sprintf "loading %s (%d)\n",	1010	warn sprintf "loading %s (%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1011	$filename, length $data, scalar @{$av || []};
819	return ($data, $av);	1012	return ($data, $av);
820	}	1013	}
		1014
		1015	=head2 COMMAND CALLBACKS
		1016
		1017	=over 4
		1018
		1019	=cut
821		1020
822	#############################################################################	1021	#############################################################################
823	# command handling &c	1022	# command handling &c
824		1023
825	=item cf::register_command $name => \&callback($ob,$args);	1024	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1037	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1038	}
840		1039
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1040	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1041
843	Register a callbackf ro execution when the client sends an extcmd packet.	1042	Register a callback for execution when the client sends an (synchronous)
		1043	extcmd packet. Ext commands will be processed in the order they are
		1044	received by the server, like other user commands. The first argument is
		1045	the logged-in player. Ext commands can only be processed after a player
		1046	has logged in successfully.
844		1047
845	If the callback returns something, it is sent back as if reply was being	1048	If the callback returns something, it is sent back as if reply was being
846	called.	1049	called.
847		1050
		1051	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1052
		1053	Register a callback for execution when the client sends an (asynchronous)
		1054	exticmd packet. Exti commands are processed by the server as soon as they
		1055	are received, i.e. out of order w.r.t. other commands. The first argument
		1056	is a client socket. Exti commands can be received anytime, even before
		1057	log-in.
		1058
		1059	If the callback returns something, it is sent back as if reply was being
		1060	called.
		1061
848	=cut	1062	=cut
849		1063
850	sub register_extcmd {	1064	sub register_extcmd {
851	my ($name, $cb) = @_;	1065	my ($name, $cb) = @_;
852		1066
853	$EXTCMD{$name} = $cb;	1067	$EXTCMD{$name} = $cb;
		1068	}
		1069
		1070	sub register_exticmd {
		1071	my ($name, $cb) = @_;
		1072
		1073	$EXTICMD{$name} = $cb;
854	}	1074	}
855		1075
856	cf::player->attach (	1076	cf::player->attach (
857	on_command => sub {	1077	on_command => sub {
858	my ($pl, $name, $params) = @_;	1078	my ($pl, $name, $params) = @_;
…		…
883		1103
884	cf::override;	1104	cf::override;
885	},	1105	},
886	);	1106	);
887		1107
888	sub load_extension {
889	my ($path) = @_;
890
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
892	my $base = $1;
893	my $pkg = $1;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}
916	die $@;
917	}
918
919	push @EXTS, $pkg;
920	}
921
922	sub load_extensions {	1108	sub load_extensions {
		1109	cf::sync_job {
		1110	my %todo;
		1111
923	for my $ext (<$LIBDIR/*.ext>) {	1112	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1113	next unless -r $path;
925	eval {	1114
926	load_extension $ext;	1115	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1116	my $base = $1;
		1117	my $pkg = $1;
		1118	$pkg =~ s/[^[:word:]]/_/g;
		1119	$pkg = "ext::$pkg";
		1120
		1121	open my $fh, "<:utf8", $path
		1122	or die "$path: $!";
		1123
		1124	my $source = do { local $/; <$fh> };
		1125
		1126	my %ext = (
		1127	path => $path,
		1128	base => $base,
		1129	pkg => $pkg,
		1130	);
		1131
		1132	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1133	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1134
		1135	$ext{source} =
		1136	"package $pkg; use strict; use utf8;\n"
		1137	. "#line 1 \"$path\"\n{\n"
		1138	. $source
		1139	. "\n};\n1";
		1140
		1141	$todo{$base} = \%ext;
		1142	}
		1143
		1144	my %done;
		1145	while (%todo) {
		1146	my $progress;
		1147
		1148	while (my ($k, $v) = each %todo) {
		1149	for (split /,\s*/, $v->{meta}{depends}) {
		1150	goto skip
		1151	unless exists $done{$_};
		1152	}
		1153
		1154	warn "... loading '$k' into '$v->{pkg}'\n";
		1155
		1156	unless (eval $v->{source}) {
		1157	my $msg = $@ ? "$v->{path}: $@\n"
		1158	: "$v->{base}: extension inactive.\n";
		1159
		1160	if (exists $v->{meta}{mandatory}) {
		1161	warn $msg;
		1162	warn "mandatory extension failed to load, exiting.\n";
		1163	exit 1;
		1164	}
		1165
		1166	warn $msg;
		1167	}
		1168
		1169	$done{$k} = delete $todo{$k};
		1170	push @EXTS, $v->{pkg};
		1171	$progress = 1;
927	1	1172	}
928	} or warn "$ext not loaded: $@";	1173
		1174	skip:
		1175	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1176	unless $progress;
		1177	}
929	}	1178	};
930	}	1179	}
931		1180
932	#############################################################################	1181	#############################################################################
933		1182
		1183	=back
		1184
934	=head2 CORE EXTENSIONS	1185	=head2 CORE EXTENSIONS
935		1186
936	Functions and methods that extend core crossfire objects.	1187	Functions and methods that extend core crossfire objects.
937		1188
938	=cut	1189	=cut
…		…
950	Returns the given player object, loading it if necessary (might block).	1201	Returns the given player object, loading it if necessary (might block).
951		1202
952	=cut	1203	=cut
953		1204
954	sub playerdir($) {	1205	sub playerdir($) {
955	cf::localdir	1206	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1207	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1208	}
961		1209
962	sub path($) {	1210	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1211	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1212
965	(playerdir $login) . "/$login.pl"	1213	(playerdir $login) . "/playerdata"
966	}	1214	}
967		1215
968	sub find_active($) {	1216	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1217	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1218	and $cf::PLAYER{$_[0]}->active
…		…
983	my $login = $_[0];	1231	my $login = $_[0];
984		1232
985	my $guard = cf::lock_acquire "user_find:$login";	1233	my $guard = cf::lock_acquire "user_find:$login";
986		1234
987	$cf::PLAYER{$_[0]} || do {	1235	$cf::PLAYER{$_[0]} || do {
		1236	# rename old playerfiles to new ones
		1237	#TODO: remove when no longer required
		1238	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1239	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1240	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1241	aio_unlink +(playerdir $login) . "/$login.pl";
		1242
988	my $pl = load_pl path $login	1243	my $pl = load_pl path $login
989	or return;	1244	or return;
990	$cf::PLAYER{$login} = $pl	1245	$cf::PLAYER{$login} = $pl
991	}	1246	}
992	}	1247	}
…		…
1054	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;	1309	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1055		1310
1056	IO::AIO::aio_rmtree $temp;	1311	IO::AIO::aio_rmtree $temp;
1057	}	1312	}
1058		1313
		1314	=item $pl->kick
		1315
		1316	Kicks a player out of the game. This destroys the connection.
		1317
		1318	=cut
		1319
		1320	sub kick {
		1321	my ($pl, $kicker) = @_;
		1322
		1323	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1324	$pl->killer ("kicked");
		1325	$pl->ns->destroy;
		1326	}
		1327
1059	=item cf::player::list_logins	1328	=item cf::player::list_logins
1060		1329
1061	Returns am arrayref of all valid playernames in the system, can take a	1330	Returns am arrayref of all valid playernames in the system, can take a
1062	while and may block, so not sync_job-capable, ever.	1331	while and may block, so not sync_job-capable, ever.
1063		1332
1064	=cut	1333	=cut
1065		1334
1066	sub list_logins {	1335	sub list_logins {
1067	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1336	my $dirs = aio_readdir $PLAYERDIR
1068	or return [];	1337	or return [];
1069		1338
1070	my @logins;	1339	my @logins;
1071		1340
1072	for my $login (@$dirs) {	1341	for my $login (@$dirs) {
…		…
1107	}	1376	}
1108		1377
1109	\@paths	1378	\@paths
1110	}	1379	}
1111		1380
		1381	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1382
		1383	Expand crossfire pod fragments into protocol xml.
		1384
		1385	=cut
		1386
		1387	sub expand_cfpod {
		1388	((my $self), (local $_)) = @_;
		1389
		1390	# escape & and <
		1391	s/&/&amp;/g;
		1392	s/(?<![BIUGH])</&lt;/g;
		1393
		1394	# this is buggy, it needs to properly take care of nested <'s
		1395
		1396	1 while
		1397	# replace B<>, I<>, U<> etc.
		1398	s/B<([^\>]*)>/<b>$1<\/b>/
		1399	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1400	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1401	# replace G<male|female> tags
		1402	|| s{G<([^>|]*)\|([^>]*)>}{
		1403	$self->gender ? $2 : $1
		1404	}ge
		1405	# replace H<hint text>
		1406	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1407
		1408	# create single paragraphs (very hackish)
		1409	s/(?<=\S)\n(?=\w)/ /g;
		1410
		1411	$_
		1412	}
		1413
1112	=item $player->ext_reply ($msgid, $msgtype, %msg)	1414	=item $player->ext_reply ($msgid, %msg)
1113		1415
1114	Sends an ext reply to the player.	1416	Sends an ext reply to the player.
1115		1417
1116	=cut	1418	=cut
1117		1419
1118	sub ext_reply($$$%) {	1420	sub ext_reply($$%) {
1119	my ($self, $id, %msg) = @_;	1421	my ($self, $id, %msg) = @_;
1120		1422
1121	$msg{msgid} = $id;	1423	$msg{msgid} = $id;
1122
1123	$self->send ("ext " . cf::to_json \%msg);	1424	$self->send ("ext " . cf::to_json \%msg);
1124	}	1425	}
1125		1426
1126	package cf;	1427	=item $player->ext_event ($type, %msg)
		1428
		1429	Sends an ext event to the client.
		1430
		1431	=cut
		1432
		1433	sub ext_event($$%) {
		1434	my ($self, $type, %msg) = @_;
		1435
		1436	$self->ns->ext_event ($type, %msg);
		1437	}
		1438
		1439	=head3 cf::region
		1440
		1441	=over 4
		1442
		1443	=cut
		1444
		1445	package cf::region;
		1446
		1447	=item cf::region::find_by_path $path
		1448
		1449	Tries to decuce the likely region for a map knowing only its path.
		1450
		1451	=cut
		1452
		1453	sub find_by_path($) {
		1454	my ($path) = @_;
		1455
		1456	my ($match, $specificity);
		1457
		1458	for my $region (list) {
		1459	if ($region->match && $path =~ $region->match) {
		1460	($match, $specificity) = ($region, $region->specificity)
		1461	if $region->specificity > $specificity;
		1462	}
		1463	}
		1464
		1465	$match
		1466	}
1127		1467
1128	=back	1468	=back
1129
1130		1469
1131	=head3 cf::map	1470	=head3 cf::map
1132		1471
1133	=over 4	1472	=over 4
1134		1473
…		…
1189	my ($self, $merge) = @_;	1528	my ($self, $merge) = @_;
1190		1529
1191	# we have to keep some variables in memory intact	1530	# we have to keep some variables in memory intact
1192	local $self->{path};	1531	local $self->{path};
1193	local $self->{load_path};	1532	local $self->{load_path};
1194	local $self->{deny_save};
1195	local $self->{deny_reset};
1196		1533
1197	$self->SUPER::thawer_merge ($merge);	1534	$self->SUPER::thawer_merge ($merge);
1198	}	1535	}
1199		1536
1200	sub normalise {	1537	sub normalise {
…		…
1272		1609
1273	# the original (read-only) location	1610	# the original (read-only) location
1274	sub load_path {	1611	sub load_path {
1275	my ($self) = @_;	1612	my ($self) = @_;
1276		1613
1277	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1614	"$MAPDIR/$self->{path}.map"
1278	}	1615	}
1279		1616
1280	# the temporary/swap location	1617	# the temporary/swap location
1281	sub save_path {	1618	sub save_path {
1282	my ($self) = @_;	1619	my ($self) = @_;
1283		1620
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1621	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1285	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1622	"$TMPDIR/$path.map"
1286	}	1623	}
1287		1624
1288	# the unique path, undef == no special unique path	1625	# the unique path, undef == no special unique path
1289	sub uniq_path {	1626	sub uniq_path {
1290	my ($self) = @_;	1627	my ($self) = @_;
1291		1628
1292	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1629	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1293	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1630	"$UNIQUEDIR/$path"
1294	}	1631	}
1295		1632
1296	# and all this just because we cannot iterate over	1633	# and all this just because we cannot iterate over
1297	# all maps in C++...	1634	# all maps in C++...
1298	sub change_all_map_light {	1635	sub change_all_map_light {
1299	my ($change) = @_;	1636	my ($change) = @_;
1300		1637
1301	$_->change_map_light ($change)	1638	$_->change_map_light ($change)
1302	for grep $_->outdoor, values %cf::MAP;	1639	for grep $_->outdoor, values %cf::MAP;
		1640	}
		1641
		1642	sub decay_objects {
		1643	my ($self) = @_;
		1644
		1645	return if $self->{deny_reset};
		1646
		1647	$self->do_decay_objects;
1303	}	1648	}
1304		1649
1305	sub unlink_save {	1650	sub unlink_save {
1306	my ($self) = @_;	1651	my ($self) = @_;
1307		1652
…		…
1365	$self->load_header_orig	1710	$self->load_header_orig
1366	or return;	1711	or return;
1367	$self->prepare_orig;	1712	$self->prepare_orig;
1368	}	1713	}
1369		1714
		1715	$self->{deny_reset} = 1
		1716	if $self->no_reset;
		1717
		1718	$self->default_region (cf::region::find_by_path $self->{path})
		1719	unless $self->default_region;
		1720
1370	1	1721	1
1371	}	1722	}
1372		1723
1373	sub find;	1724	sub find;
1374	sub find {	1725	sub find {
…		…
1386	$map->{last_save} = $cf::RUNTIME;	1737	$map->{last_save} = $cf::RUNTIME;
1387		1738
1388	$map->load_header	1739	$map->load_header
1389	or return;	1740	or return;
1390		1741
1391	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1742	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1392	# doing this can freeze the server in a sync job, obviously	1743	# doing this can freeze the server in a sync job, obviously
1393	#$cf::WAIT_FOR_TICK->wait;	1744	#$cf::WAIT_FOR_TICK->wait;
1394	$map->reset;	1745	$map->reset;
1395	undef $guard;	1746	undef $guard;
1396	return find $path;	1747	return find $path;
…		…
1407	my ($self) = @_;	1758	my ($self) = @_;
1408		1759
1409	local $self->{deny_reset} = 1; # loading can take a long time	1760	local $self->{deny_reset} = 1; # loading can take a long time
1410		1761
1411	my $path = $self->{path};	1762	my $path = $self->{path};
		1763
		1764	{
1412	my $guard = cf::lock_acquire "map_load:$path";	1765	my $guard = cf::lock_acquire "map_load:$path";
1413		1766
1414	return if $self->in_memory != cf::MAP_SWAPPED;	1767	return if $self->in_memory != cf::MAP_SWAPPED;
1415		1768
1416	$self->in_memory (cf::MAP_LOADING);	1769	$self->in_memory (cf::MAP_LOADING);
1417		1770
1418	$self->alloc;	1771	$self->alloc;
1419		1772
1420	$self->pre_load;	1773	$self->pre_load;
1421
1422	$self->_load_objects ($self->{load_path}, 1)
1423	or return;
1424
1425	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1426	if delete $self->{load_original};
1427
1428	if (my $uniq = $self->uniq_path) {
1429	utf8::encode $uniq;
1430	if (aio_open $uniq, O_RDONLY, 0) {
1431	$self->clear_unique_items;
1432	$self->_load_objects ($uniq, 0);
1433	}
1434	}
1435
1436	Coro::cede;
1437
1438	# now do the right thing for maps
1439	$self->link_multipart_objects;
1440
1441	unless ($self->{deny_activate}) {
1442	$self->decay_objects;
1443	$self->fix_auto_apply;
1444	$self->update_buttons;
1445	Coro::cede;	1774	Coro::cede;
1446	$self->set_darkness_map;	1775
		1776	$self->_load_objects ($self->{load_path}, 1)
		1777	or return;
		1778
		1779	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1780	if delete $self->{load_original};
		1781
		1782	if (my $uniq = $self->uniq_path) {
		1783	utf8::encode $uniq;
		1784	if (aio_open $uniq, O_RDONLY, 0) {
		1785	$self->clear_unique_items;
		1786	$self->_load_objects ($uniq, 0);
		1787	}
		1788	}
		1789
		1790	Coro::cede;
		1791	# now do the right thing for maps
		1792	$self->link_multipart_objects;
1447	$self->difficulty ($self->estimate_difficulty)	1793	$self->difficulty ($self->estimate_difficulty)
1448	unless $self->difficulty;	1794	unless $self->difficulty;
1449	Coro::cede;	1795	Coro::cede;
		1796
		1797	unless ($self->{deny_activate}) {
		1798	$self->decay_objects;
		1799	$self->fix_auto_apply;
		1800	$self->update_buttons;
		1801	Coro::cede;
		1802	$self->set_darkness_map;
		1803	Coro::cede;
1450	$self->activate;	1804	$self->activate;
		1805	}
		1806
		1807	$self->in_memory (cf::MAP_IN_MEMORY);
1451	}	1808	}
1452		1809
1453	$self->post_load;	1810	$self->post_load;
1454
1455	$self->in_memory (cf::MAP_IN_MEMORY);
1456	}	1811	}
1457		1812
1458	sub customise_for {	1813	sub customise_for {
1459	my ($self, $ob) = @_;	1814	my ($self, $ob) = @_;
1460		1815
1461	return find "~" . $ob->name . "/" . $self->{path}	1816	return find "~" . $ob->name . "/" . $self->{path}
1462	if $self->per_player;	1817	if $self->per_player;
		1818
		1819	# return find "?party/" . $ob->name . "/" . $self->{path}
		1820	# if $self->per_party;
1463		1821
1464	$self	1822	$self
1465	}	1823	}
1466		1824
1467	# find and load all maps in the 3x3 area around a map	1825	# find and load all maps in the 3x3 area around a map
…		…
1578		1936
1579	sub reset_at {	1937	sub reset_at {
1580	my ($self) = @_;	1938	my ($self) = @_;
1581		1939
1582	# TODO: safety, remove and allow resettable per-player maps	1940	# TODO: safety, remove and allow resettable per-player maps
1583	return 1e99 if $self->isa ("ext::map_per_player");#d#
1584	return 1e99 if $self->{deny_reset};	1941	return 1e99 if $self->{deny_reset};
1585		1942
1586	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1943	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1587	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1944	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1588		1945
…		…
1599	my ($self) = @_;	1956	my ($self) = @_;
1600		1957
1601	my $lock = cf::lock_acquire "map_data:$self->{path}";	1958	my $lock = cf::lock_acquire "map_data:$self->{path}";
1602		1959
1603	return if $self->players;	1960	return if $self->players;
1604	return if $self->isa ("ext::map_per_player");#d#
1605		1961
1606	warn "resetting map ", $self->path;#d#	1962	warn "resetting map ", $self->path;
1607		1963
1608	$self->in_memory (cf::MAP_SWAPPED);	1964	$self->in_memory (cf::MAP_SWAPPED);
1609		1965
1610	# need to save uniques path	1966	# need to save uniques path
1611	unless ($self->{deny_save}) {	1967	unless ($self->{deny_save}) {
…		…
1643	$cf::MAP{$self->path} = $self;	1999	$cf::MAP{$self->path} = $self;
1644		2000
1645	$self->reset; # polite request, might not happen	2001	$self->reset; # polite request, might not happen
1646	}	2002	}
1647		2003
		2004	=item $maps = cf::map::tmp_maps
		2005
		2006	Returns an arrayref with all map paths of currently instantiated and saved
		2007	maps. May block.
		2008
		2009	=cut
		2010
		2011	sub tmp_maps() {
		2012	[
		2013	map {
		2014	utf8::decode $_;
		2015	/\.map$/
		2016	? normalise $_
		2017	: ()
		2018	} @{ aio_readdir $TMPDIR or [] }
		2019	]
		2020	}
		2021
		2022	=item $maps = cf::map::random_maps
		2023
		2024	Returns an arrayref with all map paths of currently instantiated and saved
		2025	random maps. May block.
		2026
		2027	=cut
		2028
		2029	sub random_maps() {
		2030	[
		2031	map {
		2032	utf8::decode $_;
		2033	/\.map$/
		2034	? normalise "?random/$_"
		2035	: ()
		2036	} @{ aio_readdir $RANDOMDIR or [] }
		2037	]
		2038	}
		2039
1648	=item cf::map::unique_maps	2040	=item cf::map::unique_maps
1649		2041
1650	Returns an arrayref of paths of all shared maps that have	2042	Returns an arrayref of paths of all shared maps that have
1651	instantiated unique items. May block.	2043	instantiated unique items. May block.
1652		2044
1653	=cut	2045	=cut
1654		2046
1655	sub unique_maps() {	2047	sub unique_maps() {
1656	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2048	[
1657	or return;	2049	map {
1658
1659	my @paths;
1660
1661	for (@$files) {
1662	utf8::decode $_;	2050	utf8::decode $_;
1663	next if /\.pst$/;	2051	/\.map$/
1664	next unless /^$PATH_SEP/o;	2052	? normalise $_
1665		2053	: ()
1666	push @paths, cf::map::normalise $_;	2054	} @{ aio_readdir $UNIQUEDIR or [] }
1667	}	2055	]
1668
1669	\@paths
1670	}	2056	}
1671		2057
1672	package cf;	2058	package cf;
1673		2059
1674	=back	2060	=back
…		…
1720		2106
1721	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2107	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1722		2108
1723	if ($self->{record_replies}) {	2109	if ($self->{record_replies}) {
1724	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2110	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2111
1725	} else {	2112	} else {
		2113	my $pl = $self->contr;
		2114
		2115	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2116	my $diag = $pl->{npc_dialog};
		2117	$diag->{pl}->ext_reply (
		2118	$diag->{id},
		2119	msgtype => "reply",
		2120	msg => $diag->{pl}->expand_cfpod ($msg),
		2121	add_topics => []
		2122	);
		2123
		2124	} else {
1726	$msg = $npc->name . " says: $msg" if $npc;	2125	$msg = $npc->name . " says: $msg" if $npc;
1727	$self->message ($msg, $flags);	2126	$self->message ($msg, $flags);
		2127	}
1728	}	2128	}
1729	}	2129	}
1730		2130
1731	=item $player_object->may ("access")	2131	=item $player_object->may ("access")
1732		2132
…		…
1780	$self->deactivate_recursive;	2180	$self->deactivate_recursive;
1781		2181
1782	return if UNIVERSAL::isa $self->map, "ext::map_link";	2182	return if UNIVERSAL::isa $self->map, "ext::map_link";
1783		2183
1784	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2184	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1785	if $self->map;	2185	if $self->map && $self->map->{path} ne "{link}";
1786		2186
1787	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2187	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1788	}	2188	}
1789		2189
1790	sub cf::object::player::leave_link {	2190	sub cf::object::player::leave_link {
1791	my ($self, $map, $x, $y) = @_;	2191	my ($self, $map, $x, $y) = @_;
		2192
		2193	return unless $self->contr->active;
1792		2194
1793	my $link_pos = delete $self->{_link_pos};	2195	my $link_pos = delete $self->{_link_pos};
1794		2196
1795	unless ($map) {	2197	unless ($map) {
1796	# restore original map position	2198	# restore original map position
…		…
1819		2221
1820	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2222	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1821	$self->enter_map ($map, $x, $y);	2223	$self->enter_map ($map, $x, $y);
1822	}	2224	}
1823		2225
1824	cf::player->attach (
1825	on_logout => sub {
1826	my ($pl) = @_;
1827
1828	# abort map switching before logout
1829	if ($pl->ob->{_link_pos}) {
1830	cf::sync_job {
1831	$pl->ob->leave_link
1832	};
1833	}
1834	},
1835	on_login => sub {
1836	my ($pl) = @_;
1837
1838	# try to abort aborted map switching on player login :)
1839	# should happen only on crashes
1840	if ($pl->ob->{_link_pos}) {
1841	$pl->ob->enter_link;
1842	(async {
1843	$pl->ob->reply (undef,
1844	"There was an internal problem at your last logout, "
1845	. "the server will try to bring you to your intended destination in a second.",
1846	cf::NDI_RED);
1847	# we need this sleep as the login has a concurrent enter_exit running
1848	# and this sleep increases chances of the player not ending up in scorn
1849	Coro::Timer::sleep 1;
1850	$pl->ob->leave_link;
1851	})->prio (2);
1852	}
1853	},
1854	);
1855
1856	=item $player_object->goto ($path, $x, $y)	2226	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1857		2227
		2228	Moves the player to the given map-path and coordinates by first freezing
		2229	her, loading and preparing them map, calling the provided $check callback
		2230	that has to return the map if sucecssful, and then unfreezes the player on
		2231	the new (success) or old (failed) map position.
		2232
1858	=cut	2233	=cut
		2234
		2235	our $GOTOGEN;
1859		2236
1860	sub cf::object::player::goto {	2237	sub cf::object::player::goto {
1861	my ($self, $path, $x, $y) = @_;	2238	my ($self, $path, $x, $y, $check) = @_;
		2239
		2240	# do generation counting so two concurrent goto's will be executed in-order
		2241	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1862		2242
1863	$self->enter_link;	2243	$self->enter_link;
1864		2244
1865	(async {	2245	(async {
1866	my $map = eval {	2246	my $map = eval {
1867	my $map = cf::map::find $path;	2247	my $map = cf::map::find $path;
		2248
		2249	if ($map) {
1868	$map = $map->customise_for ($self) if $map;	2250	$map = $map->customise_for ($self);
		2251	$map = $check->($map) if $check && $map;
		2252	} else {
		2253	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2254	}
		2255
1869	$map	2256	$map
		2257	};
		2258
		2259	if ($@) {
		2260	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2261	LOG llevError | logBacktrace, Carp::longmess $@;
1870	} or	2262	}
1871	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1872		2263
		2264	if ($gen == $self->{_goto_generation}) {
		2265	delete $self->{_goto_generation};
1873	$self->leave_link ($map, $x, $y);	2266	$self->leave_link ($map, $x, $y);
		2267	}
1874	})->prio (1);	2268	})->prio (1);
1875	}	2269	}
1876		2270
1877	=item $player_object->enter_exit ($exit_object)	2271	=item $player_object->enter_exit ($exit_object)
1878		2272
…		…
1917		2311
1918	$rmp->{random_seed} ||= $exit->random_seed;	2312	$rmp->{random_seed} ||= $exit->random_seed;
1919		2313
1920	my $data = cf::to_json $rmp;	2314	my $data = cf::to_json $rmp;
1921	my $md5 = Digest::MD5::md5_hex $data;	2315	my $md5 = Digest::MD5::md5_hex $data;
1922	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2316	my $meta = "$RANDOMDIR/$md5.meta";
1923		2317
1924	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2318	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1925	aio_write $fh, 0, (length $data), $data, 0;	2319	aio_write $fh, 0, (length $data), $data, 0;
1926	undef $fh;	2320	undef $fh;
1927	aio_rename "$meta~", $meta;	2321	aio_rename "$meta~", $meta;
…		…
1936		2330
1937	return unless $self->type == cf::PLAYER;	2331	return unless $self->type == cf::PLAYER;
1938		2332
1939	if ($exit->slaying eq "/!") {	2333	if ($exit->slaying eq "/!") {
1940	#TODO: this should de-fi-ni-te-ly not be a sync-job	2334	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2335	# the problem is that $exit might not survive long enough
		2336	# so it needs to be done right now, right here
1941	cf::sync_job { prepare_random_map $exit };	2337	cf::sync_job { prepare_random_map $exit };
1942	}	2338	}
1943		2339
1944	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2340	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1945	my $hp = $exit->stats->hp;	2341	my $hp = $exit->stats->hp;
…		…
1953	$self->goto ($slaying, $hp, $sp);	2349	$self->goto ($slaying, $hp, $sp);
1954		2350
1955	1;	2351	1;
1956	}) {	2352	}) {
1957	$self->message ("Something went wrong deep within the crossfire server. "	2353	$self->message ("Something went wrong deep within the crossfire server. "
1958	. "I'll try to bring you back to the map you were before. "	2354	. "I'll try to bring you back to the map you were before. "
1959	. "Please report this to the dungeon master!",	2355	. "Please report this to the dungeon master!",
1960	cf::NDI_UNIQUE | cf::NDI_RED);	2356	cf::NDI_UNIQUE | cf::NDI_RED);
1961		2357
1962	warn "ERROR in enter_exit: $@";	2358	warn "ERROR in enter_exit: $@";
1963	$self->leave_link;	2359	$self->leave_link;
1964	}	2360	}
1965	})->prio (1);	2361	})->prio (1);
…		…
1978		2374
1979	sub cf::client::send_drawinfo {	2375	sub cf::client::send_drawinfo {
1980	my ($self, $text, $flags) = @_;	2376	my ($self, $text, $flags) = @_;
1981		2377
1982	utf8::encode $text;	2378	utf8::encode $text;
1983	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2379	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1984	}	2380	}
1985		2381
		2382	=item $client->send_msg ($color, $type, $msg, [extra...])
		2383
		2384	Send a drawinfo or msg packet to the client, formatting the msg for the
		2385	client if neccessary. C<$type> should be a string identifying the type of
		2386	the message, with C<log> being the default. If C<$color> is negative, suppress
		2387	the message unless the client supports the msg packet.
		2388
		2389	=cut
		2390
		2391	sub cf::client::send_msg {
		2392	my ($self, $color, $type, $msg, @extra) = @_;
		2393
		2394	$msg = $self->pl->expand_cfpod ($msg);
		2395
		2396	if ($self->can_msg) {
		2397	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2398	} else {
		2399	# replace some tags by gcfclient-compatible ones
		2400	for ($msg) {
		2401	1 while
		2402	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2403	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2404	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2405	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2406	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2407	}
		2408
		2409	if ($color >= 0) {
		2410	if (0 && $msg =~ /\[/) {
		2411	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2412	} else {
		2413	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2414	$self->send_packet ("drawinfo $color $msg")
		2415	}
		2416	}
		2417	}
		2418	}
		2419
		2420	=item $client->ext_event ($type, %msg)
		2421
		2422	Sends an ext event to the client.
		2423
		2424	=cut
		2425
		2426	sub cf::client::ext_event($$%) {
		2427	my ($self, $type, %msg) = @_;
		2428
		2429	$msg{msgtype} = "event_$type";
		2430	$self->send_packet ("ext " . cf::to_json \%msg);
		2431	}
1986		2432
1987	=item $success = $client->query ($flags, "text", \&cb)	2433	=item $success = $client->query ($flags, "text", \&cb)
1988		2434
1989	Queues a query to the client, calling the given callback with	2435	Queues a query to the client, calling the given callback with
1990	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2436	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1991	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2437	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1992		2438
1993	Queries can fail, so check the return code. Or don't, as queries will become	2439	Queries can fail, so check the return code. Or don't, as queries will
1994	reliable at some point in the future.	2440	become reliable at some point in the future.
1995		2441
1996	=cut	2442	=cut
1997		2443
1998	sub cf::client::query {	2444	sub cf::client::query {
1999	my ($self, $flags, $text, $cb) = @_;	2445	my ($self, $flags, $text, $cb) = @_;
…		…
2007	utf8::encode $text;	2453	utf8::encode $text;
2008	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2454	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2009		2455
2010	$self->send_packet ($self->{query_queue}[0][0])	2456	$self->send_packet ($self->{query_queue}[0][0])
2011	if @{ $self->{query_queue} } == 1;	2457	if @{ $self->{query_queue} } == 1;
		2458
		2459	1
2012	}	2460	}
2013		2461
2014	cf::client->attach (	2462	cf::client->attach (
2015	on_reply => sub {	2463	on_reply => sub {
2016	my ($ns, $msg) = @_;	2464	my ($ns, $msg) = @_;
…		…
2031	} else {	2479	} else {
2032	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2480	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2033	}	2481	}
2034	}	2482	}
2035	},	2483	},
		2484	on_exticmd => sub {
		2485	my ($ns, $buf) = @_;
		2486
		2487	my $msg = eval { from_json $buf };
		2488
		2489	if (ref $msg) {
		2490	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2491	if (my %reply = $cb->($ns, $msg)) {
		2492	$reply{msgid} = $msg->{msgid};
		2493	$ns->send ("ext " . cf::to_json \%reply);
		2494	}
		2495	}
		2496	} else {
		2497	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2498	}
		2499
		2500	cf::override;
		2501	},
2036	);	2502	);
2037		2503
2038	=item $client->async (\&cb)	2504	=item $client->async (\&cb)
2039		2505
2040	Create a new coroutine, running the specified callback. The coroutine will	2506	Create a new coroutine, running the specified callback. The coroutine will
…		…
2087		2553
2088	# here we export the classes and methods available to script code	2554	# here we export the classes and methods available to script code
2089		2555
2090	=pod	2556	=pod
2091		2557
2092	The following fucntions and emthods are available within a safe environment:	2558	The following functions and methods are available within a safe environment:
2093		2559
2094	cf::object contr pay_amount pay_player map	2560	cf::object contr pay_amount pay_player map
2095	cf::object::player player	2561	cf::object::player player
2096	cf::player peaceful	2562	cf::player peaceful
2097	cf::map trigger	2563	cf::map trigger
…		…
2178	=back	2644	=back
2179		2645
2180	=cut	2646	=cut
2181		2647
2182	#############################################################################	2648	#############################################################################
2183
2184	=head2 EXTENSION DATABASE SUPPORT
2185
2186	Crossfire maintains a very simple database for extension use. It can
2187	currently store anything that can be serialised using Storable, which
2188	excludes objects.
2189
2190	The parameter C<$family> should best start with the name of the extension
2191	using it, it should be unique.
2192
2193	=over 4
2194
2195	=item $value = cf::db_get $family => $key
2196
2197	Returns a single value from the database.
2198
2199	=item cf::db_put $family => $key => $value
2200
2201	Stores the given C<$value> in the family.
2202
2203	=cut
2204
2205	our $DB;
2206
2207	sub db_init {
2208	unless ($DB) {
2209	$DB = BDB::db_create $DB_ENV;
2210
2211	cf::sync_job {
2212	eval {
2213	$DB->set_flags (BDB::CHKSUM);
2214
2215	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2216	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2217	cf::cleanup "db_open(db): $!" if $!;
2218	};
2219	cf::cleanup "db_open(db): $@" if $@;
2220	};
2221
2222	my $path = cf::localdir . "/database.pst";
2223	if (stat $path) {
2224	cf::sync_job {
2225	my $pst = Storable::retrieve $path;
2226
2227	cf::db_put (board => data => $pst->{board});
2228	cf::db_put (guildrules => data => $pst->{guildrules});
2229	cf::db_put (rent => balance => $pst->{rent}{balance});
2230	BDB::db_env_txn_checkpoint $DB_ENV;
2231
2232	unlink $path;
2233	};
2234	}
2235	}
2236	}
2237
2238	sub db_get($$) {
2239	my $key = "$_[0]/$_[1]";
2240
2241	cf::sync_job {
2242	BDB::db_get $DB, undef, $key, my $data;
2243
2244	$! ? ()
2245	: Compress::LZF::sthaw $data
2246	}
2247	}
2248
2249	sub db_put($$$) {
2250	BDB::dbreq_pri 4;
2251	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2252	}
2253
2254	#############################################################################
2255	# the server's init and main functions	2649	# the server's init and main functions
2256		2650
2257	sub init_resources {	2651	sub load_facedata($) {
2258	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2652	my ($path) = @_;
		2653
		2654	warn "loading facedata from $path\n";
		2655
		2656	my $facedata;
		2657	0 < aio_load $path, $facedata
		2658	or die "$path: $!";
		2659
		2660	$facedata = Coro::Storable::thaw $facedata;
		2661
		2662	$facedata->{version} == 2
		2663	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2664
		2665	{
		2666	my $faces = $facedata->{faceinfo};
		2667
		2668	while (my ($face, $info) = each %$faces) {
		2669	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2670	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2671	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2672	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2673	Coro::cede;
		2674	}
		2675
		2676	while (my ($face, $info) = each %$faces) {
		2677	next unless $info->{smooth};
		2678	my $idx = cf::face::find $face
		2679	or next;
		2680	if (my $smooth = cf::face::find $info->{smooth}) {
		2681	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2682	} else {
		2683	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2684	}
		2685	Coro::cede;
		2686	}
		2687	}
		2688
		2689	{
		2690	my $anims = $facedata->{animinfo};
		2691
		2692	while (my ($anim, $info) = each %$anims) {
		2693	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2694	Coro::cede;
		2695	}
		2696
		2697	cf::anim::invalidate_all; # d'oh
		2698	}
		2699
		2700	1
		2701	}
		2702
		2703	sub reload_regions {
		2704	load_resource_file "$MAPDIR/regions"
2259	or die "unable to load regions file\n";#d#	2705	or die "unable to load regions file\n";
		2706	}
		2707
		2708	sub reload_facedata {
		2709	load_facedata "$DATADIR/facedata"
		2710	or die "unable to load facedata\n";
		2711	}
		2712
		2713	sub reload_archetypes {
		2714	load_resource_file "$DATADIR/archetypes"
		2715	or die "unable to load archetypes\n";
		2716	}
		2717
		2718	sub reload_treasures {
		2719	load_resource_file "$DATADIR/treasures"
		2720	or die "unable to load treasurelists\n";
		2721	}
		2722
		2723	sub reload_resources {
		2724	warn "reloading resource files...\n";
		2725
		2726	reload_regions;
		2727	reload_facedata;
		2728	#reload_archetypes;#d#
		2729	reload_archetypes;
		2730	reload_treasures;
		2731
		2732	warn "finished reloading resource files\n";
		2733	}
		2734
		2735	sub init {
		2736	reload_resources;
2260	}	2737	}
2261		2738
2262	sub cfg_load {	2739	sub cfg_load {
2263	open my $fh, "<:utf8", cf::confdir . "/config"	2740	open my $fh, "<:utf8", "$CONFDIR/config"
2264	or return;	2741	or return;
2265		2742
2266	local $/;	2743	local $/;
2267	*CFG = YAML::Syck::Load <$fh>;	2744	*CFG = YAML::Syck::Load <$fh>;
2268		2745
…		…
2276	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2753	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2277	and die "WARNING: m(un)lockall failed: $!\n";	2754	and die "WARNING: m(un)lockall failed: $!\n";
2278	};	2755	};
2279	warn $@ if $@;	2756	warn $@ if $@;
2280	}	2757	}
2281	}
2282
2283	sub init {
2284	init_resources;
2285	}	2758	}
2286		2759
2287	sub main {	2760	sub main {
2288	# we must not ever block the main coroutine	2761	# we must not ever block the main coroutine
2289	local $Coro::idle = sub {	2762	local $Coro::idle = sub {
…		…
2317	},	2790	},
2318	);	2791	);
2319	}	2792	}
2320	}	2793	}
2321		2794
		2795	sub write_runtime {
		2796	my $runtime = "$LOCALDIR/runtime";
		2797
		2798	# first touch the runtime file to show we are still running:
		2799	# the fsync below can take a very very long time.
		2800
		2801	IO::AIO::aio_utime $runtime, undef, undef;
		2802
		2803	my $guard = cf::lock_acquire "write_runtime";
		2804
		2805	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2806	or return;
		2807
		2808	my $value = $cf::RUNTIME + 90 + 10;
		2809	# 10 is the runtime save interval, for a monotonic clock
		2810	# 60 allows for the watchdog to kill the server.
		2811
		2812	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2813	and return;
		2814
		2815	# always fsync - this file is important
		2816	aio_fsync $fh
		2817	and return;
		2818
		2819	# touch it again to show we are up-to-date
		2820	aio_utime $fh, undef, undef;
		2821
		2822	close $fh
		2823	or return;
		2824
		2825	aio_rename "$runtime~", $runtime
		2826	and return;
		2827
		2828	warn "runtime file written.\n";
		2829
		2830	1
		2831	}
		2832
2322	sub emergency_save() {	2833	sub emergency_save() {
2323	my $freeze_guard = cf::freeze_mainloop;	2834	my $freeze_guard = cf::freeze_mainloop;
2324		2835
2325	warn "enter emergency perl save\n";	2836	warn "enter emergency perl save\n";
2326		2837
…		…
2357		2868
2358	warn Carp::longmess "post_cleanup backtrace"	2869	warn Carp::longmess "post_cleanup backtrace"
2359	if $make_core;	2870	if $make_core;
2360	}	2871	}
2361		2872
2362	sub reload() {	2873	sub do_reload_perl() {
2363	# can/must only be called in main	2874	# can/must only be called in main
2364	if ($Coro::current != $Coro::main) {	2875	if ($Coro::current != $Coro::main) {
2365	warn "can only reload from main coroutine";	2876	warn "can only reload from main coroutine";
2366	return;	2877	return;
2367	}	2878	}
…		…
2392	Coro::cede;	2903	Coro::cede;
2393	last unless IO::AIO::nreqs || BDB::nreqs;	2904	last unless IO::AIO::nreqs || BDB::nreqs;
2394	warn "iterate...";	2905	warn "iterate...";
2395	}	2906	}
2396		2907
		2908	++$RELOAD;
		2909
2397	warn "cancelling all extension coros";	2910	warn "cancelling all extension coros";
2398	$_->cancel for values %EXT_CORO;	2911	$_->cancel for values %EXT_CORO;
2399	%EXT_CORO = ();	2912	%EXT_CORO = ();
2400		2913
2401	warn "removing commands";	2914	warn "removing commands";
2402	%COMMAND = ();	2915	%COMMAND = ();
2403		2916
2404	warn "removing ext commands";	2917	warn "removing ext/exti commands";
2405	%EXTCMD = ();	2918	%EXTCMD = ();
		2919	%EXTICMD = ();
2406		2920
2407	warn "unloading/nuking all extensions";	2921	warn "unloading/nuking all extensions";
2408	for my $pkg (@EXTS) {	2922	for my $pkg (@EXTS) {
2409	warn "... unloading $pkg";	2923	warn "... unloading $pkg";
2410		2924
…		…
2440	Symbol::delete_package "safe::$_"	2954	Symbol::delete_package "safe::$_"
2441	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2955	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2442		2956
2443	warn "unloading cf.pm \"a bit\"";	2957	warn "unloading cf.pm \"a bit\"";
2444	delete $INC{"cf.pm"};	2958	delete $INC{"cf.pm"};
		2959	delete $INC{"cf/pod.pm"};
2445		2960
2446	# don't, removes xs symbols, too,	2961	# don't, removes xs symbols, too,
2447	# and global variables created in xs	2962	# and global variables created in xs
2448	#Symbol::delete_package __PACKAGE__;	2963	#Symbol::delete_package __PACKAGE__;
2449		2964
…		…
2458		2973
2459	warn "loading extensions";	2974	warn "loading extensions";
2460	cf::load_extensions;	2975	cf::load_extensions;
2461		2976
2462	warn "reattaching attachments to objects/players";	2977	warn "reattaching attachments to objects/players";
2463	_global_reattach;	2978	_global_reattach; # objects, sockets
2464	warn "reattaching attachments to maps";	2979	warn "reattaching attachments to maps";
2465	reattach $_ for values %MAP;	2980	reattach $_ for values %MAP;
2466		2981	warn "reattaching attachments to players";
2467	warn "loading reloadable resources";	2982	reattach $_ for values %PLAYER;
2468	init_resources;
2469		2983
2470	warn "leaving sync_job";	2984	warn "leaving sync_job";
2471		2985
2472	1	2986	1
2473	} or do {	2987	} or do {
…		…
2479	warn "reloaded";	2993	warn "reloaded";
2480	};	2994	};
2481		2995
2482	our $RELOAD_WATCHER; # used only during reload	2996	our $RELOAD_WATCHER; # used only during reload
2483		2997
		2998	sub reload_perl() {
		2999	# doing reload synchronously and two reloads happen back-to-back,
		3000	# coro crashes during coro_state_free->destroy here.
		3001
		3002	$RELOAD_WATCHER ||= Event->timer (
		3003	reentrant => 0,
		3004	after => 0,
		3005	data => WF_AUTOCANCEL,
		3006	cb => sub {
		3007	do_reload_perl;
		3008	undef $RELOAD_WATCHER;
		3009	},
		3010	);
		3011	}
		3012
2484	register_command "reload" => sub {	3013	register_command "reload" => sub {
2485	my ($who, $arg) = @_;	3014	my ($who, $arg) = @_;
2486		3015
2487	if ($who->flag (FLAG_WIZ)) {	3016	if ($who->flag (FLAG_WIZ)) {
2488	$who->message ("reloading server.");	3017	$who->message ("reloading server.");
2489		3018	async { reload_perl };
2490	# doing reload synchronously and two reloads happen back-to-back,
2491	# coro crashes during coro_state_free->destroy here.
2492
2493	$RELOAD_WATCHER ||= Event->timer (
2494	reentrant => 0,
2495	after => 0,
2496	data => WF_AUTOCANCEL,
2497	cb => sub {
2498	reload;
2499	undef $RELOAD_WATCHER;
2500	},
2501	);
2502	}	3019	}
2503	};	3020	};
2504		3021
2505	unshift @INC, $LIBDIR;	3022	unshift @INC, $LIBDIR;
2506		3023
2507	my $bug_warning = 0;	3024	my $bug_warning = 0;
2508		3025
		3026	our @WAIT_FOR_TICK;
		3027	our @WAIT_FOR_TICK_BEGIN;
		3028
		3029	sub wait_for_tick {
		3030	return unless $TICK_WATCHER->is_active;
		3031	return if $Coro::current == $Coro::main;
		3032
		3033	my $signal = new Coro::Signal;
		3034	push @WAIT_FOR_TICK, $signal;
		3035	$signal->wait;
		3036	}
		3037
		3038	sub wait_for_tick_begin {
		3039	return unless $TICK_WATCHER->is_active;
		3040	return if $Coro::current == $Coro::main;
		3041
		3042	my $signal = new Coro::Signal;
		3043	push @WAIT_FOR_TICK_BEGIN, $signal;
		3044	$signal->wait;
		3045	}
		3046
		3047	my $min = 1e6;#d#
		3048	my $avg = 10;
2509	$TICK_WATCHER = Event->timer (	3049	$TICK_WATCHER = Event->timer (
2510	reentrant => 0,	3050	reentrant => 0,
2511	parked => 1,	3051	parked => 1,
2512	prio => 0,	3052	prio => 0,
2513	at => $NEXT_TICK || $TICK,	3053	at => $NEXT_TICK || $TICK,
…		…
2517	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3057	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2518	unless ++$bug_warning > 10;	3058	unless ++$bug_warning > 10;
2519	return;	3059	return;
2520	}	3060	}
2521		3061
2522	$NOW = Event::time;	3062	$NOW = $tick_start = Event::time;
2523		3063
2524	cf::server_tick; # one server iteration	3064	cf::server_tick; # one server iteration
		3065
		3066	0 && sync_job {#d#
		3067	for(1..10) {
		3068	my $t = Event::time;
		3069	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3070	or die;
		3071
		3072	$map->width (50);
		3073	$map->height (50);
		3074	$map->alloc;
		3075	$map->_load_objects ("/tmp/x.map", 1);
		3076	my $t = Event::time - $t;
		3077
		3078	#next unless $t < 0.0013;#d#
		3079	if ($t < $min) {
		3080	$min = $t;
		3081	}
		3082	$avg = $avg * 0.99 + $t * 0.01;
		3083	}
		3084	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3085	exit 0;
		3086	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3087	};
		3088
2525	$RUNTIME += $TICK;	3089	$RUNTIME += $TICK;
2526	$NEXT_TICK += $TICK;	3090	$NEXT_TICK += $TICK;
2527		3091
2528	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3092	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2529	$NEXT_RUNTIME_WRITE = $NOW + 10;	3093	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2531	write_runtime	3095	write_runtime
2532	or warn "ERROR: unable to write runtime file: $!";	3096	or warn "ERROR: unable to write runtime file: $!";
2533	};	3097	};
2534	}	3098	}
2535		3099
2536	$WAIT_FOR_TICK->broadcast;
2537	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2538
2539	# my $AFTER = Event::time;	3100	# my $AFTER = Event::time;
2540	# warn $AFTER - $NOW;#d#	3101	# warn $AFTER - $NOW;#d#
2541		3102
		3103	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3104	$sig->send;
		3105	}
		3106	while (my $sig = shift @WAIT_FOR_TICK) {
		3107	$sig->send;
		3108	}
		3109
		3110	$NOW = Event::time;
		3111
2542	# if we are delayed by four ticks or more, skip them all	3112	# if we are delayed by four ticks or more, skip them all
2543	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3113	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2544		3114
2545	$TICK_WATCHER->at ($NEXT_TICK);	3115	$TICK_WATCHER->at ($NEXT_TICK);
2546	$TICK_WATCHER->start;	3116	$TICK_WATCHER->start;
		3117
		3118	$LOAD = ($NOW - $tick_start) / $TICK;
		3119	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3120
		3121	_post_tick;
		3122
		3123
2547	},	3124	},
2548	);	3125	);
2549		3126
2550	{	3127	{
2551	BDB::max_poll_time $TICK * 0.1;	3128	BDB::max_poll_time $TICK * 0.1;
…		…
2579		3156
2580	cf::sync_job {	3157	cf::sync_job {
2581	eval {	3158	eval {
2582	BDB::db_env_open	3159	BDB::db_env_open
2583	$DB_ENV,	3160	$DB_ENV,
2584	$BDB_ENV_DIR,	3161	$BDBDIR,
2585	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3162	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2586	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3163	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2587	0666;	3164	0666;
2588		3165
2589	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3166	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2590		3167
2591	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3168	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2592	$DB_ENV->set_lk_detect;	3169	$DB_ENV->set_lk_detect;
2593	};	3170	};
2594		3171
…		…
2610	prio => 6,	3187	prio => 6,
2611	cb => \&IO::AIO::poll_cb,	3188	cb => \&IO::AIO::poll_cb,
2612	);	3189	);
2613	}	3190	}
2614		3191
		3192	my $_log_backtrace;
		3193
		3194	sub _log_backtrace {
		3195	my ($msg, @addr) = @_;
		3196
		3197	$msg =~ s/\n//;
		3198
		3199	# limit the # of concurrent backtraces
		3200	if ($_log_backtrace < 2) {
		3201	++$_log_backtrace;
		3202	async {
		3203	my @bt = fork_call {
		3204	@addr = map { sprintf "%x", $_ } @addr;
		3205	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3206	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3207	or die "addr2line: $!";
		3208
		3209	my @funcs;
		3210	my @res = <$fh>;
		3211	chomp for @res;
		3212	while (@res) {
		3213	my ($func, $line) = splice @res, 0, 2, ();
		3214	push @funcs, "[$func] $line";
		3215	}
		3216
		3217	@funcs
		3218	};
		3219
		3220	LOG llevInfo, "[ABT] $msg\n";
		3221	LOG llevInfo, "[ABT] $_\n" for @bt;
		3222	--$_log_backtrace;
		3223	};
		3224	} else {
		3225	LOG llevInfo, "[ABT] $msg\n";
		3226	LOG llevInfo, "[ABT] [suppressed]\n";
		3227	}
		3228	}
		3229
		3230	# load additional modules
		3231	use cf::pod;
		3232
2615	END { cf::emergency_save }	3233	END { cf::emergency_save }
2616		3234
2617	1	3235	1
2618		3236

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