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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.237 by root, Fri Apr 13 05:08:51 2007 UTC vs.
Revision 1.292 by root, Tue Jul 3 00:54:57 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 ();
…		…
47	our %COMMAND = ();	50	our %COMMAND = ();
48	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
49		52
50	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
51	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
52	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
54		58
55	our $RELOAD; # number of reloads so far	59	our $RELOAD; # number of reloads so far
56	our @EVENT;	60	our @EVENT;
57	our $LIBDIR = datadir . "/ext";
58		61
59	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
60	our $TICK_WATCHER;	75	our $TICK_WATCHER;
61	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
63	our $NEXT_TICK;	78	our $NEXT_TICK;
64	our $NOW;	79	our $NOW;
…		…
73	our $RUNTIME;	88	our $RUNTIME;
74		89
75	our %PLAYER; # all users	90	our %PLAYER; # all users
76	our %MAP; # all maps	91	our %MAP; # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	92	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		93
84	# used to convert map paths into valid unix filenames by replacing / by ∕	94	# used to convert map paths into valid unix filenames by replacing / by ∕
85	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
86		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
		100
87	binmode STDOUT;	101	binmode STDOUT;
88	binmode STDERR;	102	binmode STDERR;
89		103
90	# read virtual server time, if available	104	# read virtual server time, if available
91	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
92	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
93	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
94	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
95	}	109	}
96		110
97	mkdir cf::localdir;	111	mkdir $_
98	mkdir cf::localdir . "/" . cf::playerdir;	112	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		113
104	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
105		115
106	sub cf::map::normalise;	116	sub cf::map::normalise;
107		117
…		…
118	=item $cf::RUNTIME	128	=item $cf::RUNTIME
119		129
120	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
121	every server tick.	131	every server tick.
122		132
123	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
124		136
125	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
126	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
127		141
128	=item $cf::NOW	142	=item $cf::NOW
129		143
130	The time of the last (current) server tick.	144	The time of the last (current) server tick.
131		145
132	=item $cf::TICK	146	=item $cf::TICK
133		147
134	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
135		159
136	=item %cf::CFG	160	=item %cf::CFG
137		161
138	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
139	from wherever your confdir points to.	163	from wherever your confdir points to.
140		164
141	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	165	=item cf::wait_for_tick, cf::wait_for_tick_begin
142		166
143	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	167	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	168	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	169	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		170
148	=back	171	=back
149		172
150	=cut	173	=cut
151		174
152	BEGIN {	175	BEGIN {
153	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
154	my $msg = join "", @_;	177	my $msg = join "", @_;
155	utf8::encode $msg;
156		178
157	$msg .= "\n"	179	$msg .= "\n"
158	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
159		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
160	LOG llevError, $msg;	185	LOG llevError, $msg;
161	};	186	};
162	}	187	}
163		188
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
169	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
170		196
171	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
172	# within the Safe compartment.	198	# within the Safe compartment.
173	for my $pkg (qw(	199	for my $pkg (qw(
174	cf::global cf::attachable	200	cf::global cf::attachable
…		…
182	}	208	}
183		209
184	$Event::DIED = sub {	210	$Event::DIED = sub {
185	warn "error in event callback: @_";	211	warn "error in event callback: @_";
186	};	212	};
		213
		214	#############################################################################
187		215
188	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
189		217
190	=over 4	218	=over 4
191		219
…		…
210	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
211	$d	239	$d
212	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
213	}	241	}
214		242
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
218		244
219	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
220		246
221	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
222		248
223	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
		250
		251	=cut
		252
		253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		254
		255	sub to_json ($) { $json_coder->encode ($_[0]) }
		256	sub from_json ($) { $json_coder->decode ($_[0]) }
224		257
225	=item cf::lock_wait $string	258	=item cf::lock_wait $string
226		259
227	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
228		261
…		…
234	returned.	267	returned.
235		268
236	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
237	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
238		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
239	=cut	276	=cut
240		277
241	our %LOCK;	278	our %LOCK;
242		279
243	sub lock_wait($) {	280	sub lock_wait($) {
…		…
260		297
261	Coro::guard {	298	Coro::guard {
262	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
264	}	301	}
		302	}
		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
265	}	308	}
266		309
267	sub freeze_mainloop {	310	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
269		312
…		…
284		327
285	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
286		329
287	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
288		331
289	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
292		336
293	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
296	fast or be very important.	340	fast or be very important.
…		…
299		343
300	sub sync_job(&) {	344	sub sync_job(&) {
301	my ($job) = @_;	345	my ($job) = @_;
302		346
303	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
304	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
306		352
307	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
308	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
319		365
320	while ($busy) {	366	while ($busy) {
321	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
322	}	368	}
323		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
		376
324	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
325	} else {	378	} else {
326	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
327		380
328	$job->()	381	$job->()
…		…
347	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
348		401
349	$coro	402	$coro
350	}	403	}
351		404
352	sub write_runtime {	405	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		406
355	my $runtime = cf::localdir . "/runtime";	407	Executes the given code block with the given arguments in a seperate
		408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
356		411
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	412	=cut
358	or return;
359		413
360	my $value = $cf::RUNTIME + 90 + 10;	414	sub fork_call(&@) {
361	# 10 is the runtime save interval, for a monotonic clock	415	my ($cb, @args) = @_;
362	# 60 allows for the watchdog to kill the server.
363		416
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
365	and return;	418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
366		421
367	# always fsync - this file is important	422	if (my $pid = fork) {
368	aio_fsync $fh
369	and return;
370
371	close $fh	423	close $fh2;
372	or return;
373		424
374	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
375	and return;	426	$res = Coro::Storable::thaw $res;
376		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
377	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
378	}	563	}
379		564
380	=item cf::datalog type => key => value, ...	565	=item cf::datalog type => key => value, ...
381		566
382	Log a datalog packet of the given type with the given key-value pairs.	567	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")	585	attach callbacks/event handlers (a collection of which is called an "attachment")
401	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
402		587
403	In the following description, CLASS can be any of C<global>, C<object>	588	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	589	C<player>, C<client> or C<map> (i.e. the attachable objects in
405	crossfire+).	590	Crossfire TRT).
406		591
407	=over 4	592	=over 4
408		593
409	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
410		595
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
574		759
575	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		764
580	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	766	my $pkg = shift @arg;
582		767
583	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
613	}	798	}
614		799
615	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
616	} else {	801	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	803	}
619		804
620	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
621	}	806	}
622		807
…		…
624	if (ref $_[0]) {	809	if (ref $_[0]) {
625	_object_attach @_;	810	_object_attach @_;
626	} else {	811	} else {
627	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
628	}	813	}
		814	_recalc_want;
629	};	815	};
630		816
631	# all those should be optimised	817	# all those should be optimised
632	sub cf::attachable::detach {	818	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
637	reattach ($obj);	823	reattach ($obj);
638	} else {	824	} else {
639	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
640	}	826	}
		827	_recalc_want;
641	};	828	};
642		829
643	sub cf::attachable::attached {	830	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
645		832
…		…
818	or return;	1005	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
820	}	1007	}
821		1008
822	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
824	return ($data, $av);	1011	return ($data, $av);
825	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
826		1019
827	#############################################################################	1020	#############################################################################
828	# command handling &c	1021	# command handling &c
829		1022
830	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1037	}
845		1038
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1040
848	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
849		1046
850	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
851	called.	1048	called.
852		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
853	=cut	1061	=cut
854		1062
855	sub register_extcmd {	1063	sub register_extcmd {
856	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
857		1065
858	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
859	}	1073	}
860		1074
861	cf::player->attach (	1075	cf::player->attach (
862	on_command => sub {	1076	on_command => sub {
863	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
872	cf::override;	1086	cf::override;
873	},	1087	},
874	on_extcmd => sub {	1088	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
876		1090
877	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1092
879	if (ref $msg) {	1093	if (ref $msg) {
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
881	if (my %reply = $cb->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
882	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
888		1102
889	cf::override;	1103	cf::override;
890	},	1104	},
891	);	1105	);
892		1106
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 {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
928	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1112	next unless -r $path;
930	eval {	1113
931	load_extension $ext;	1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
932	1	1171	}
933	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
934	}	1177	};
935	}	1178	}
936		1179
937	#############################################################################	1180	#############################################################################
938		1181
		1182	=back
		1183
939	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
940		1185
941	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
942		1187
943	=cut	1188	=cut
…		…
955	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
956		1201
957	=cut	1202	=cut
958		1203
959	sub playerdir($) {	1204	sub playerdir($) {
960	cf::localdir	1205	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1207	}
966		1208
967	sub path($) {	1209	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
1088	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1089		1331
1090	=cut	1332	=cut
1091		1333
1092	sub list_logins {	1334	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1336	or return [];
1095		1337
1096	my @logins;	1338	my @logins;
1097		1339
1098	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1133	}	1375	}
1134		1376
1135	\@paths	1377	\@paths
1136	}	1378	}
1137		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s{H<([^\>]*)>}
		1406	{
		1407	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1408	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1409	"")
		1410	[$self->{hintmode}]
		1411	}ge;
		1412
		1413	# create single paragraphs (very hackish)
		1414	s/(?<=\S)\n(?=\w)/ /g;
		1415
		1416	# compress some whitespace
		1417	1 while s/\s*\n\s*\n\s*/\n/;
		1418
		1419	$_
		1420	}
		1421
		1422	sub hintmode {
		1423	$_[0]{hintmode} = $_[1] if @_ > 1;
		1424	$_[0]{hintmode}
		1425	}
		1426
1138	=item $player->ext_reply ($msgid, %msg)	1427	=item $player->ext_reply ($msgid, %msg)
1139		1428
1140	Sends an ext reply to the player.	1429	Sends an ext reply to the player.
1141		1430
1142	=cut	1431	=cut
1143		1432
1144	sub ext_reply($$%) {	1433	sub ext_reply($$%) {
1145	my ($self, $id, %msg) = @_;	1434	my ($self, $id, %msg) = @_;
1146		1435
1147	$msg{msgid} = $id;	1436	$msg{msgid} = $id;
1148		1437	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1438	}
1151		1439
1152	=item $player->ext_event ($type, %msg)	1440	=item $player->ext_event ($type, %msg)
1153		1441
1154	Sends an ext event to the client.	1442	Sends an ext event to the client.
…		…
1159	my ($self, $type, %msg) = @_;	1447	my ($self, $type, %msg) = @_;
1160		1448
1161	$self->ns->ext_event ($type, %msg);	1449	$self->ns->ext_event ($type, %msg);
1162	}	1450	}
1163		1451
1164	package cf;	1452	=head3 cf::region
		1453
		1454	=over 4
		1455
		1456	=cut
		1457
		1458	package cf::region;
		1459
		1460	=item cf::region::find_by_path $path
		1461
		1462	Tries to decuce the likely region for a map knowing only its path.
		1463
		1464	=cut
		1465
		1466	sub find_by_path($) {
		1467	my ($path) = @_;
		1468
		1469	my ($match, $specificity);
		1470
		1471	for my $region (list) {
		1472	if ($region->match && $path =~ $region->match) {
		1473	($match, $specificity) = ($region, $region->specificity)
		1474	if $region->specificity > $specificity;
		1475	}
		1476	}
		1477
		1478	$match
		1479	}
1165		1480
1166	=back	1481	=back
1167
1168		1482
1169	=head3 cf::map	1483	=head3 cf::map
1170		1484
1171	=over 4	1485	=over 4
1172		1486
…		…
1227	my ($self, $merge) = @_;	1541	my ($self, $merge) = @_;
1228		1542
1229	# we have to keep some variables in memory intact	1543	# we have to keep some variables in memory intact
1230	local $self->{path};	1544	local $self->{path};
1231	local $self->{load_path};	1545	local $self->{load_path};
1232	local $self->{deny_save};
1233	local $self->{deny_reset};
1234		1546
1235	$self->SUPER::thawer_merge ($merge);	1547	$self->SUPER::thawer_merge ($merge);
1236	}	1548	}
1237		1549
1238	sub normalise {	1550	sub normalise {
…		…
1310		1622
1311	# the original (read-only) location	1623	# the original (read-only) location
1312	sub load_path {	1624	sub load_path {
1313	my ($self) = @_;	1625	my ($self) = @_;
1314		1626
1315	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1627	"$MAPDIR/$self->{path}.map"
1316	}	1628	}
1317		1629
1318	# the temporary/swap location	1630	# the temporary/swap location
1319	sub save_path {	1631	sub save_path {
1320	my ($self) = @_;	1632	my ($self) = @_;
1321		1633
1322	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1634	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1323	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1635	"$TMPDIR/$path.map"
1324	}	1636	}
1325		1637
1326	# the unique path, undef == no special unique path	1638	# the unique path, undef == no special unique path
1327	sub uniq_path {	1639	sub uniq_path {
1328	my ($self) = @_;	1640	my ($self) = @_;
1329		1641
1330	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1642	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1331	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1643	"$UNIQUEDIR/$path"
1332	}	1644	}
1333		1645
1334	# and all this just because we cannot iterate over	1646	# and all this just because we cannot iterate over
1335	# all maps in C++...	1647	# all maps in C++...
1336	sub change_all_map_light {	1648	sub change_all_map_light {
1337	my ($change) = @_;	1649	my ($change) = @_;
1338		1650
1339	$_->change_map_light ($change)	1651	$_->change_map_light ($change)
1340	for grep $_->outdoor, values %cf::MAP;	1652	for grep $_->outdoor, values %cf::MAP;
		1653	}
		1654
		1655	sub decay_objects {
		1656	my ($self) = @_;
		1657
		1658	return if $self->{deny_reset};
		1659
		1660	$self->do_decay_objects;
1341	}	1661	}
1342		1662
1343	sub unlink_save {	1663	sub unlink_save {
1344	my ($self) = @_;	1664	my ($self) = @_;
1345		1665
…		…
1403	$self->load_header_orig	1723	$self->load_header_orig
1404	or return;	1724	or return;
1405	$self->prepare_orig;	1725	$self->prepare_orig;
1406	}	1726	}
1407		1727
		1728	$self->{deny_reset} = 1
		1729	if $self->no_reset;
		1730
		1731	$self->default_region (cf::region::find_by_path $self->{path})
		1732	unless $self->default_region;
		1733
1408	1	1734	1
1409	}	1735	}
1410		1736
1411	sub find;	1737	sub find;
1412	sub find {	1738	sub find {
…		…
1424	$map->{last_save} = $cf::RUNTIME;	1750	$map->{last_save} = $cf::RUNTIME;
1425		1751
1426	$map->load_header	1752	$map->load_header
1427	or return;	1753	or return;
1428		1754
1429	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1755	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1430	# doing this can freeze the server in a sync job, obviously	1756	# doing this can freeze the server in a sync job, obviously
1431	#$cf::WAIT_FOR_TICK->wait;	1757	#$cf::WAIT_FOR_TICK->wait;
1432	$map->reset;	1758	$map->reset;
1433	undef $guard;	1759	undef $guard;
1434	return find $path;	1760	return find $path;
…		…
1445	my ($self) = @_;	1771	my ($self) = @_;
1446		1772
1447	local $self->{deny_reset} = 1; # loading can take a long time	1773	local $self->{deny_reset} = 1; # loading can take a long time
1448		1774
1449	my $path = $self->{path};	1775	my $path = $self->{path};
		1776
		1777	{
1450	my $guard = cf::lock_acquire "map_load:$path";	1778	my $guard = cf::lock_acquire "map_load:$path";
1451		1779
1452	return if $self->in_memory != cf::MAP_SWAPPED;	1780	return if $self->in_memory != cf::MAP_SWAPPED;
1453		1781
1454	$self->in_memory (cf::MAP_LOADING);	1782	$self->in_memory (cf::MAP_LOADING);
1455		1783
1456	$self->alloc;	1784	$self->alloc;
1457		1785
1458	$self->pre_load;	1786	$self->pre_load;
1459
1460	$self->_load_objects ($self->{load_path}, 1)
1461	or return;
1462
1463	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1464	if delete $self->{load_original};
1465
1466	if (my $uniq = $self->uniq_path) {
1467	utf8::encode $uniq;
1468	if (aio_open $uniq, O_RDONLY, 0) {
1469	$self->clear_unique_items;
1470	$self->_load_objects ($uniq, 0);
1471	}
1472	}
1473
1474	Coro::cede;
1475
1476	# now do the right thing for maps
1477	$self->link_multipart_objects;
1478
1479	unless ($self->{deny_activate}) {
1480	$self->decay_objects;
1481	$self->fix_auto_apply;
1482	$self->update_buttons;
1483	Coro::cede;	1787	Coro::cede;
1484	$self->set_darkness_map;	1788
		1789	$self->_load_objects ($self->{load_path}, 1)
		1790	or return;
		1791
		1792	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1793	if delete $self->{load_original};
		1794
		1795	if (my $uniq = $self->uniq_path) {
		1796	utf8::encode $uniq;
		1797	if (aio_open $uniq, O_RDONLY, 0) {
		1798	$self->clear_unique_items;
		1799	$self->_load_objects ($uniq, 0);
		1800	}
		1801	}
		1802
		1803	Coro::cede;
		1804	# now do the right thing for maps
		1805	$self->link_multipart_objects;
1485	$self->difficulty ($self->estimate_difficulty)	1806	$self->difficulty ($self->estimate_difficulty)
1486	unless $self->difficulty;	1807	unless $self->difficulty;
1487	Coro::cede;	1808	Coro::cede;
		1809
		1810	unless ($self->{deny_activate}) {
		1811	$self->decay_objects;
		1812	$self->fix_auto_apply;
		1813	$self->update_buttons;
		1814	Coro::cede;
		1815	$self->set_darkness_map;
		1816	Coro::cede;
1488	$self->activate;	1817	$self->activate;
		1818	}
		1819
		1820	$self->in_memory (cf::MAP_IN_MEMORY);
1489	}	1821	}
1490		1822
1491	$self->post_load;	1823	$self->post_load;
1492
1493	$self->in_memory (cf::MAP_IN_MEMORY);
1494	}	1824	}
1495		1825
1496	sub customise_for {	1826	sub customise_for {
1497	my ($self, $ob) = @_;	1827	my ($self, $ob) = @_;
1498		1828
1499	return find "~" . $ob->name . "/" . $self->{path}	1829	return find "~" . $ob->name . "/" . $self->{path}
1500	if $self->per_player;	1830	if $self->per_player;
		1831
		1832	# return find "?party/" . $ob->name . "/" . $self->{path}
		1833	# if $self->per_party;
1501		1834
1502	$self	1835	$self
1503	}	1836	}
1504		1837
1505	# find and load all maps in the 3x3 area around a map	1838	# find and load all maps in the 3x3 area around a map
…		…
1616		1949
1617	sub reset_at {	1950	sub reset_at {
1618	my ($self) = @_;	1951	my ($self) = @_;
1619		1952
1620	# TODO: safety, remove and allow resettable per-player maps	1953	# TODO: safety, remove and allow resettable per-player maps
1621	return 1e99 if $self->isa ("ext::map_per_player");#d#
1622	return 1e99 if $self->{deny_reset};	1954	return 1e99 if $self->{deny_reset};
1623		1955
1624	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1956	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1625	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1957	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1626		1958
…		…
1637	my ($self) = @_;	1969	my ($self) = @_;
1638		1970
1639	my $lock = cf::lock_acquire "map_data:$self->{path}";	1971	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		1972
1641	return if $self->players;	1973	return if $self->players;
1642	return if $self->isa ("ext::map_per_player");#d#
1643		1974
1644	warn "resetting map ", $self->path;#d#	1975	warn "resetting map ", $self->path;
1645		1976
1646	$self->in_memory (cf::MAP_SWAPPED);	1977	$self->in_memory (cf::MAP_SWAPPED);
1647		1978
1648	# need to save uniques path	1979	# need to save uniques path
1649	unless ($self->{deny_save}) {	1980	unless ($self->{deny_save}) {
…		…
1681	$cf::MAP{$self->path} = $self;	2012	$cf::MAP{$self->path} = $self;
1682		2013
1683	$self->reset; # polite request, might not happen	2014	$self->reset; # polite request, might not happen
1684	}	2015	}
1685		2016
		2017	=item $maps = cf::map::tmp_maps
		2018
		2019	Returns an arrayref with all map paths of currently instantiated and saved
		2020	maps. May block.
		2021
		2022	=cut
		2023
		2024	sub tmp_maps() {
		2025	[
		2026	map {
		2027	utf8::decode $_;
		2028	/\.map$/
		2029	? normalise $_
		2030	: ()
		2031	} @{ aio_readdir $TMPDIR or [] }
		2032	]
		2033	}
		2034
		2035	=item $maps = cf::map::random_maps
		2036
		2037	Returns an arrayref with all map paths of currently instantiated and saved
		2038	random maps. May block.
		2039
		2040	=cut
		2041
		2042	sub random_maps() {
		2043	[
		2044	map {
		2045	utf8::decode $_;
		2046	/\.map$/
		2047	? normalise "?random/$_"
		2048	: ()
		2049	} @{ aio_readdir $RANDOMDIR or [] }
		2050	]
		2051	}
		2052
1686	=item cf::map::unique_maps	2053	=item cf::map::unique_maps
1687		2054
1688	Returns an arrayref of paths of all shared maps that have	2055	Returns an arrayref of paths of all shared maps that have
1689	instantiated unique items. May block.	2056	instantiated unique items. May block.
1690		2057
1691	=cut	2058	=cut
1692		2059
1693	sub unique_maps() {	2060	sub unique_maps() {
1694	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2061	[
1695	or return;	2062	map {
1696
1697	my @paths;
1698
1699	for (@$files) {
1700	utf8::decode $_;	2063	utf8::decode $_;
1701	next if /\.pst$/;	2064	/\.map$/
1702	next unless /^$PATH_SEP/o;	2065	? normalise $_
1703		2066	: ()
1704	push @paths, cf::map::normalise $_;	2067	} @{ aio_readdir $UNIQUEDIR or [] }
1705	}	2068	]
1706
1707	\@paths
1708	}	2069	}
1709		2070
1710	package cf;	2071	package cf;
1711		2072
1712	=back	2073	=back
…		…
1758		2119
1759	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2120	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1760		2121
1761	if ($self->{record_replies}) {	2122	if ($self->{record_replies}) {
1762	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2123	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2124
1763	} else {	2125	} else {
		2126	my $pl = $self->contr;
		2127
		2128	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2129	my $diag = $pl->{npc_dialog};
		2130	$diag->{pl}->ext_reply (
		2131	$diag->{id},
		2132	msgtype => "reply",
		2133	msg => $diag->{pl}->expand_cfpod ($msg),
		2134	add_topics => []
		2135	);
		2136
		2137	} else {
1764	$msg = $npc->name . " says: $msg" if $npc;	2138	$msg = $npc->name . " says: $msg" if $npc;
1765	$self->message ($msg, $flags);	2139	$self->message ($msg, $flags);
		2140	}
1766	}	2141	}
1767	}	2142	}
1768		2143
1769	=item $player_object->may ("access")	2144	=item $player_object->may ("access")
1770		2145
…		…
1818	$self->deactivate_recursive;	2193	$self->deactivate_recursive;
1819		2194
1820	return if UNIVERSAL::isa $self->map, "ext::map_link";	2195	return if UNIVERSAL::isa $self->map, "ext::map_link";
1821		2196
1822	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2197	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1823	if $self->map;	2198	if $self->map && $self->map->{path} ne "{link}";
1824		2199
1825	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2200	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1826	}	2201	}
1827		2202
1828	sub cf::object::player::leave_link {	2203	sub cf::object::player::leave_link {
1829	my ($self, $map, $x, $y) = @_;	2204	my ($self, $map, $x, $y) = @_;
		2205
		2206	return unless $self->contr->active;
1830		2207
1831	my $link_pos = delete $self->{_link_pos};	2208	my $link_pos = delete $self->{_link_pos};
1832		2209
1833	unless ($map) {	2210	unless ($map) {
1834	# restore original map position	2211	# restore original map position
…		…
1857		2234
1858	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2235	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1859	$self->enter_map ($map, $x, $y);	2236	$self->enter_map ($map, $x, $y);
1860	}	2237	}
1861		2238
1862	cf::player->attach (
1863	on_logout => sub {
1864	my ($pl) = @_;
1865
1866	# abort map switching before logout
1867	if ($pl->ob->{_link_pos}) {
1868	cf::sync_job {
1869	$pl->ob->leave_link
1870	};
1871	}
1872	},
1873	on_login => sub {
1874	my ($pl) = @_;
1875
1876	# try to abort aborted map switching on player login :)
1877	# should happen only on crashes
1878	if ($pl->ob->{_link_pos}) {
1879	$pl->ob->enter_link;
1880	(async {
1881	$pl->ob->reply (undef,
1882	"There was an internal problem at your last logout, "
1883	. "the server will try to bring you to your intended destination in a second.",
1884	cf::NDI_RED);
1885	# we need this sleep as the login has a concurrent enter_exit running
1886	# and this sleep increases chances of the player not ending up in scorn
1887	Coro::Timer::sleep 1;
1888	$pl->ob->leave_link;
1889	})->prio (2);
1890	}
1891	},
1892	);
1893
1894	=item $player_object->goto ($path, $x, $y)	2239	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1895		2240
		2241	Moves the player to the given map-path and coordinates by first freezing
		2242	her, loading and preparing them map, calling the provided $check callback
		2243	that has to return the map if sucecssful, and then unfreezes the player on
		2244	the new (success) or old (failed) map position.
		2245
1896	=cut	2246	=cut
		2247
		2248	our $GOTOGEN;
1897		2249
1898	sub cf::object::player::goto {	2250	sub cf::object::player::goto {
1899	my ($self, $path, $x, $y) = @_;	2251	my ($self, $path, $x, $y, $check) = @_;
		2252
		2253	# do generation counting so two concurrent goto's will be executed in-order
		2254	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1900		2255
1901	$self->enter_link;	2256	$self->enter_link;
1902		2257
1903	(async {	2258	(async {
1904	my $map = eval {	2259	my $map = eval {
1905	my $map = cf::map::find $path;	2260	my $map = cf::map::find $path;
		2261
		2262	if ($map) {
1906	$map = $map->customise_for ($self) if $map;	2263	$map = $map->customise_for ($self);
		2264	$map = $check->($map) if $check && $map;
		2265	} else {
		2266	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2267	}
		2268
1907	$map	2269	$map
		2270	};
		2271
		2272	if ($@) {
		2273	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2274	LOG llevError | logBacktrace, Carp::longmess $@;
1908	} or	2275	}
1909	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1910		2276
		2277	if ($gen == $self->{_goto_generation}) {
		2278	delete $self->{_goto_generation};
1911	$self->leave_link ($map, $x, $y);	2279	$self->leave_link ($map, $x, $y);
		2280	}
1912	})->prio (1);	2281	})->prio (1);
1913	}	2282	}
1914		2283
1915	=item $player_object->enter_exit ($exit_object)	2284	=item $player_object->enter_exit ($exit_object)
1916		2285
…		…
1955		2324
1956	$rmp->{random_seed} ||= $exit->random_seed;	2325	$rmp->{random_seed} ||= $exit->random_seed;
1957		2326
1958	my $data = cf::to_json $rmp;	2327	my $data = cf::to_json $rmp;
1959	my $md5 = Digest::MD5::md5_hex $data;	2328	my $md5 = Digest::MD5::md5_hex $data;
1960	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2329	my $meta = "$RANDOMDIR/$md5.meta";
1961		2330
1962	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2331	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1963	aio_write $fh, 0, (length $data), $data, 0;	2332	aio_write $fh, 0, (length $data), $data, 0;
1964	undef $fh;	2333	undef $fh;
1965	aio_rename "$meta~", $meta;	2334	aio_rename "$meta~", $meta;
…		…
2021		2390
2022	utf8::encode $text;	2391	utf8::encode $text;
2023	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2392	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2024	}	2393	}
2025		2394
		2395	=item $client->send_msg ($color, $type, $msg, [extra...])
		2396
		2397	Send a drawinfo or msg packet to the client, formatting the msg for the
		2398	client if neccessary. C<$type> should be a string identifying the type of
		2399	the message, with C<log> being the default. If C<$color> is negative, suppress
		2400	the message unless the client supports the msg packet.
		2401
		2402	=cut
		2403
		2404	sub cf::client::send_msg {
		2405	my ($self, $color, $type, $msg, @extra) = @_;
		2406
		2407	$msg = $self->pl->expand_cfpod ($msg);
		2408
		2409	if ($self->can_msg) {
		2410	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2411	} else {
		2412	# replace some tags by gcfclient-compatible ones
		2413	for ($msg) {
		2414	1 while
		2415	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2416	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2417	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2418	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2419	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2420	}
		2421
		2422	if ($color >= 0) {
		2423	if (0 && $msg =~ /\[/) {
		2424	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2425	} else {
		2426	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2427	$self->send_packet ("drawinfo $color $msg")
		2428	}
		2429	}
		2430	}
		2431	}
		2432
2026	=item $client->ext_event ($type, %msg)	2433	=item $client->ext_event ($type, %msg)
2027		2434
2028	Sends an exti event to the client.	2435	Sends an ext event to the client.
2029		2436
2030	=cut	2437	=cut
2031		2438
2032	sub cf::client::ext_event($$%) {	2439	sub cf::client::ext_event($$%) {
2033	my ($self, $type, %msg) = @_;	2440	my ($self, $type, %msg) = @_;
2034		2441
2035	$msg{msgtype} = "event_$type";	2442	$msg{msgtype} = "event_$type";
2036	$self->send_packet ("ext " . cf::to_json \%msg);	2443	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2037	}	2444	}
2038		2445
2039	=item $success = $client->query ($flags, "text", \&cb)	2446	=item $success = $client->query ($flags, "text", \&cb)
2040		2447
2041	Queues a query to the client, calling the given callback with	2448	Queues a query to the client, calling the given callback with
2042	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2449	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2043	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2450	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2044		2451
2045	Queries can fail, so check the return code. Or don't, as queries will become	2452	Queries can fail, so check the return code. Or don't, as queries will
2046	reliable at some point in the future.	2453	become reliable at some point in the future.
2047		2454
2048	=cut	2455	=cut
2049		2456
2050	sub cf::client::query {	2457	sub cf::client::query {
2051	my ($self, $flags, $text, $cb) = @_;	2458	my ($self, $flags, $text, $cb) = @_;
…		…
2059	utf8::encode $text;	2466	utf8::encode $text;
2060	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2467	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2061		2468
2062	$self->send_packet ($self->{query_queue}[0][0])	2469	$self->send_packet ($self->{query_queue}[0][0])
2063	if @{ $self->{query_queue} } == 1;	2470	if @{ $self->{query_queue} } == 1;
		2471
		2472	1
2064	}	2473	}
2065		2474
2066	cf::client->attach (	2475	cf::client->attach (
		2476	on_connect => sub {
		2477	my ($ns) = @_;
		2478
		2479	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2480	},
2067	on_reply => sub {	2481	on_reply => sub {
2068	my ($ns, $msg) = @_;	2482	my ($ns, $msg) = @_;
2069		2483
2070	# this weird shuffling is so that direct followup queries	2484	# this weird shuffling is so that direct followup queries
2071	# get handled first	2485	# get handled first
…		…
2082	$ns->send_packet ($ns->{query_queue}[0][0]);	2496	$ns->send_packet ($ns->{query_queue}[0][0]);
2083	} else {	2497	} else {
2084	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2498	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2085	}	2499	}
2086	}	2500	}
		2501	},
		2502	on_exticmd => sub {
		2503	my ($ns, $buf) = @_;
		2504
		2505	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2506
		2507	if (ref $msg) {
		2508	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2509	if (my %reply = $cb->($ns, $msg)) {
		2510	$reply{msgid} = $msg->{msgid};
		2511	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2512	}
		2513	}
		2514	} else {
		2515	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2516	}
		2517
		2518	cf::override;
2087	},	2519	},
2088	);	2520	);
2089		2521
2090	=item $client->async (\&cb)	2522	=item $client->async (\&cb)
2091		2523
…		…
2230	=back	2662	=back
2231		2663
2232	=cut	2664	=cut
2233		2665
2234	#############################################################################	2666	#############################################################################
2235
2236	=head2 EXTENSION DATABASE SUPPORT
2237
2238	Crossfire maintains a very simple database for extension use. It can
2239	currently store anything that can be serialised using Storable, which
2240	excludes objects.
2241
2242	The parameter C<$family> should best start with the name of the extension
2243	using it, it should be unique.
2244
2245	=over 4
2246
2247	=item $value = cf::db_get $family => $key
2248
2249	Returns a single value from the database.
2250
2251	=item cf::db_put $family => $key => $value
2252
2253	Stores the given C<$value> in the family.
2254
2255	=cut
2256
2257	our $DB;
2258
2259	sub db_init {
2260	unless ($DB) {
2261	$DB = BDB::db_create $DB_ENV;
2262
2263	cf::sync_job {
2264	eval {
2265	$DB->set_flags (BDB::CHKSUM);
2266
2267	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2268	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2269	cf::cleanup "db_open(db): $!" if $!;
2270	};
2271	cf::cleanup "db_open(db): $@" if $@;
2272	};
2273
2274	my $path = cf::localdir . "/database.pst";
2275	if (stat $path) {
2276	cf::sync_job {
2277	my $pst = Storable::retrieve $path;
2278
2279	cf::db_put (board => data => $pst->{board});
2280	cf::db_put (guildrules => data => $pst->{guildrules});
2281	cf::db_put (rent => balance => $pst->{rent}{balance});
2282	BDB::db_env_txn_checkpoint $DB_ENV;
2283
2284	unlink $path;
2285	};
2286	}
2287	}
2288	}
2289
2290	sub db_get($$) {
2291	my $key = "$_[0]/$_[1]";
2292
2293	cf::sync_job {
2294	BDB::db_get $DB, undef, $key, my $data;
2295
2296	$! ? ()
2297	: Compress::LZF::sthaw $data
2298	}
2299	}
2300
2301	sub db_put($$$) {
2302	BDB::dbreq_pri 4;
2303	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2304	}
2305
2306	#############################################################################
2307	# the server's init and main functions	2667	# the server's init and main functions
2308		2668
2309	sub load_facedata {	2669	sub load_facedata($) {
2310	my $path = sprintf "%s/facedata", cf::datadir;	2670	my ($path) = @_;
2311		2671
2312	warn "loading facedata from $path\n";	2672	warn "loading facedata from $path\n";
2313		2673
2314	my $facedata;	2674	my $facedata;
2315	0 < aio_load $path, $facedata	2675	0 < aio_load $path, $facedata
…		…
2356	}	2716	}
2357		2717
2358	1	2718	1
2359	}	2719	}
2360		2720
		2721	sub reload_regions {
		2722	load_resource_file "$MAPDIR/regions"
		2723	or die "unable to load regions file\n";
		2724	}
		2725
		2726	sub reload_facedata {
		2727	load_facedata "$DATADIR/facedata"
		2728	or die "unable to load facedata\n";
		2729	}
		2730
		2731	sub reload_archetypes {
		2732	load_resource_file "$DATADIR/archetypes"
		2733	or die "unable to load archetypes\n";
		2734	#d# NEED to laod twice to resolve forward references
		2735	# this really needs to be done in an extra post-pass
		2736	# (which needs to be synchronous, so solve it differently)
		2737	load_resource_file "$DATADIR/archetypes"
		2738	or die "unable to load archetypes\n";
		2739	}
		2740
		2741	sub reload_treasures {
		2742	load_resource_file "$DATADIR/treasures"
		2743	or die "unable to load treasurelists\n";
		2744	}
		2745
2361	sub reload_resources {	2746	sub reload_resources {
2362	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2747	warn "reloading resource files...\n";
2363	or die "unable to load regions file\n";#d#	2748
		2749	reload_regions;
2364	load_facedata	2750	reload_facedata;
2365	or die "unable to load facedata\n";#d#	2751	#reload_archetypes;#d#
		2752	reload_archetypes;
		2753	reload_treasures;
		2754
		2755	warn "finished reloading resource files\n";
2366	}	2756	}
2367		2757
2368	sub init {	2758	sub init {
2369	reload_resources;	2759	reload_resources;
2370	}	2760	}
2371		2761
2372	sub cfg_load {	2762	sub cfg_load {
2373	open my $fh, "<:utf8", cf::confdir . "/config"	2763	open my $fh, "<:utf8", "$CONFDIR/config"
2374	or return;	2764	or return;
2375		2765
2376	local $/;	2766	local $/;
2377	*CFG = YAML::Syck::Load <$fh>;	2767	*CFG = YAML::Syck::Load <$fh>;
2378		2768
…		…
2423	},	2813	},
2424	);	2814	);
2425	}	2815	}
2426	}	2816	}
2427		2817
		2818	sub write_runtime {
		2819	my $runtime = "$LOCALDIR/runtime";
		2820
		2821	# first touch the runtime file to show we are still running:
		2822	# the fsync below can take a very very long time.
		2823
		2824	IO::AIO::aio_utime $runtime, undef, undef;
		2825
		2826	my $guard = cf::lock_acquire "write_runtime";
		2827
		2828	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2829	or return;
		2830
		2831	my $value = $cf::RUNTIME + 90 + 10;
		2832	# 10 is the runtime save interval, for a monotonic clock
		2833	# 60 allows for the watchdog to kill the server.
		2834
		2835	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2836	and return;
		2837
		2838	# always fsync - this file is important
		2839	aio_fsync $fh
		2840	and return;
		2841
		2842	# touch it again to show we are up-to-date
		2843	aio_utime $fh, undef, undef;
		2844
		2845	close $fh
		2846	or return;
		2847
		2848	aio_rename "$runtime~", $runtime
		2849	and return;
		2850
		2851	warn "runtime file written.\n";
		2852
		2853	1
		2854	}
		2855
2428	sub emergency_save() {	2856	sub emergency_save() {
2429	my $freeze_guard = cf::freeze_mainloop;	2857	my $freeze_guard = cf::freeze_mainloop;
2430		2858
2431	warn "enter emergency perl save\n";	2859	warn "enter emergency perl save\n";
2432		2860
…		…
2463		2891
2464	warn Carp::longmess "post_cleanup backtrace"	2892	warn Carp::longmess "post_cleanup backtrace"
2465	if $make_core;	2893	if $make_core;
2466	}	2894	}
2467		2895
2468	sub reload() {	2896	sub do_reload_perl() {
2469	# can/must only be called in main	2897	# can/must only be called in main
2470	if ($Coro::current != $Coro::main) {	2898	if ($Coro::current != $Coro::main) {
2471	warn "can only reload from main coroutine";	2899	warn "can only reload from main coroutine";
2472	return;	2900	return;
2473	}	2901	}
…		…
2507	%EXT_CORO = ();	2935	%EXT_CORO = ();
2508		2936
2509	warn "removing commands";	2937	warn "removing commands";
2510	%COMMAND = ();	2938	%COMMAND = ();
2511		2939
2512	warn "removing ext commands";	2940	warn "removing ext/exti commands";
2513	%EXTCMD = ();	2941	%EXTCMD = ();
		2942	%EXTICMD = ();
2514		2943
2515	warn "unloading/nuking all extensions";	2944	warn "unloading/nuking all extensions";
2516	for my $pkg (@EXTS) {	2945	for my $pkg (@EXTS) {
2517	warn "... unloading $pkg";	2946	warn "... unloading $pkg";
2518		2947
…		…
2548	Symbol::delete_package "safe::$_"	2977	Symbol::delete_package "safe::$_"
2549	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2978	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2550		2979
2551	warn "unloading cf.pm \"a bit\"";	2980	warn "unloading cf.pm \"a bit\"";
2552	delete $INC{"cf.pm"};	2981	delete $INC{"cf.pm"};
		2982	delete $INC{"cf/pod.pm"};
2553		2983
2554	# don't, removes xs symbols, too,	2984	# don't, removes xs symbols, too,
2555	# and global variables created in xs	2985	# and global variables created in xs
2556	#Symbol::delete_package __PACKAGE__;	2986	#Symbol::delete_package __PACKAGE__;
2557		2987
…		…
2572	warn "reattaching attachments to maps";	3002	warn "reattaching attachments to maps";
2573	reattach $_ for values %MAP;	3003	reattach $_ for values %MAP;
2574	warn "reattaching attachments to players";	3004	warn "reattaching attachments to players";
2575	reattach $_ for values %PLAYER;	3005	reattach $_ for values %PLAYER;
2576		3006
2577	warn "loading reloadable resources";
2578	reload_resources;
2579
2580	warn "leaving sync_job";	3007	warn "leaving sync_job";
2581		3008
2582	1	3009	1
2583	} or do {	3010	} or do {
2584	warn $@;	3011	warn $@;
…		…
2589	warn "reloaded";	3016	warn "reloaded";
2590	};	3017	};
2591		3018
2592	our $RELOAD_WATCHER; # used only during reload	3019	our $RELOAD_WATCHER; # used only during reload
2593		3020
		3021	sub reload_perl() {
		3022	# doing reload synchronously and two reloads happen back-to-back,
		3023	# coro crashes during coro_state_free->destroy here.
		3024
		3025	$RELOAD_WATCHER ||= Event->timer (
		3026	reentrant => 0,
		3027	after => 0,
		3028	data => WF_AUTOCANCEL,
		3029	cb => sub {
		3030	do_reload_perl;
		3031	undef $RELOAD_WATCHER;
		3032	},
		3033	);
		3034	}
		3035
2594	register_command "reload" => sub {	3036	register_command "reload" => sub {
2595	my ($who, $arg) = @_;	3037	my ($who, $arg) = @_;
2596		3038
2597	if ($who->flag (FLAG_WIZ)) {	3039	if ($who->flag (FLAG_WIZ)) {
2598	$who->message ("reloading server.");	3040	$who->message ("reloading server.");
2599		3041	async { reload_perl };
2600	# doing reload synchronously and two reloads happen back-to-back,
2601	# coro crashes during coro_state_free->destroy here.
2602
2603	$RELOAD_WATCHER ||= Event->timer (
2604	reentrant => 0,
2605	after => 0,
2606	data => WF_AUTOCANCEL,
2607	cb => sub {
2608	reload;
2609	undef $RELOAD_WATCHER;
2610	},
2611	);
2612	}	3042	}
2613	};	3043	};
2614		3044
2615	unshift @INC, $LIBDIR;	3045	unshift @INC, $LIBDIR;
2616		3046
2617	my $bug_warning = 0;	3047	my $bug_warning = 0;
2618		3048
		3049	our @WAIT_FOR_TICK;
		3050	our @WAIT_FOR_TICK_BEGIN;
		3051
		3052	sub wait_for_tick {
		3053	return unless $TICK_WATCHER->is_active;
		3054	return if $Coro::current == $Coro::main;
		3055
		3056	my $signal = new Coro::Signal;
		3057	push @WAIT_FOR_TICK, $signal;
		3058	$signal->wait;
		3059	}
		3060
		3061	sub wait_for_tick_begin {
		3062	return unless $TICK_WATCHER->is_active;
		3063	return if $Coro::current == $Coro::main;
		3064
		3065	my $signal = new Coro::Signal;
		3066	push @WAIT_FOR_TICK_BEGIN, $signal;
		3067	$signal->wait;
		3068	}
		3069
		3070	my $min = 1e6;#d#
		3071	my $avg = 10;
2619	$TICK_WATCHER = Event->timer (	3072	$TICK_WATCHER = Event->timer (
2620	reentrant => 0,	3073	reentrant => 0,
2621	parked => 1,	3074	parked => 1,
2622	prio => 0,	3075	prio => 0,
2623	at => $NEXT_TICK || $TICK,	3076	at => $NEXT_TICK || $TICK,
…		…
2627	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3080	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2628	unless ++$bug_warning > 10;	3081	unless ++$bug_warning > 10;
2629	return;	3082	return;
2630	}	3083	}
2631		3084
2632	$NOW = Event::time;	3085	$NOW = $tick_start = Event::time;
2633		3086
2634	cf::server_tick; # one server iteration	3087	cf::server_tick; # one server iteration
		3088
		3089	0 && sync_job {#d#
		3090	for(1..10) {
		3091	my $t = Event::time;
		3092	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3093	or die;
		3094
		3095	$map->width (50);
		3096	$map->height (50);
		3097	$map->alloc;
		3098	$map->_load_objects ("/tmp/x.map", 1);
		3099	my $t = Event::time - $t;
		3100
		3101	#next unless $t < 0.0013;#d#
		3102	if ($t < $min) {
		3103	$min = $t;
		3104	}
		3105	$avg = $avg * 0.99 + $t * 0.01;
		3106	}
		3107	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3108	exit 0;
		3109	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3110	};
		3111
2635	$RUNTIME += $TICK;	3112	$RUNTIME += $TICK;
2636	$NEXT_TICK += $TICK;	3113	$NEXT_TICK += $TICK;
2637		3114
2638	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3115	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2639	$NEXT_RUNTIME_WRITE = $NOW + 10;	3116	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2641	write_runtime	3118	write_runtime
2642	or warn "ERROR: unable to write runtime file: $!";	3119	or warn "ERROR: unable to write runtime file: $!";
2643	};	3120	};
2644	}	3121	}
2645		3122
2646	$WAIT_FOR_TICK->broadcast;
2647	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2648
2649	# my $AFTER = Event::time;	3123	# my $AFTER = Event::time;
2650	# warn $AFTER - $NOW;#d#	3124	# warn $AFTER - $NOW;#d#
2651		3125
		3126	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3127	$sig->send;
		3128	}
		3129	while (my $sig = shift @WAIT_FOR_TICK) {
		3130	$sig->send;
		3131	}
		3132
		3133	$NOW = Event::time;
		3134
2652	# if we are delayed by four ticks or more, skip them all	3135	# if we are delayed by four ticks or more, skip them all
2653	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3136	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2654		3137
2655	$TICK_WATCHER->at ($NEXT_TICK);	3138	$TICK_WATCHER->at ($NEXT_TICK);
2656	$TICK_WATCHER->start;	3139	$TICK_WATCHER->start;
		3140
		3141	$LOAD = ($NOW - $tick_start) / $TICK;
		3142	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3143
		3144	_post_tick;
		3145
		3146
2657	},	3147	},
2658	);	3148	);
2659		3149
2660	{	3150	{
2661	BDB::max_poll_time $TICK * 0.1;	3151	BDB::max_poll_time $TICK * 0.1;
…		…
2689		3179
2690	cf::sync_job {	3180	cf::sync_job {
2691	eval {	3181	eval {
2692	BDB::db_env_open	3182	BDB::db_env_open
2693	$DB_ENV,	3183	$DB_ENV,
2694	$BDB_ENV_DIR,	3184	$BDBDIR,
2695	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3185	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2696	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3186	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2697	0666;	3187	0666;
2698		3188
2699	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3189	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2700		3190
2701	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3191	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2702	$DB_ENV->set_lk_detect;	3192	$DB_ENV->set_lk_detect;
2703	};	3193	};
2704		3194
…		…
2720	prio => 6,	3210	prio => 6,
2721	cb => \&IO::AIO::poll_cb,	3211	cb => \&IO::AIO::poll_cb,
2722	);	3212	);
2723	}	3213	}
2724		3214
		3215	my $_log_backtrace;
		3216
		3217	sub _log_backtrace {
		3218	my ($msg, @addr) = @_;
		3219
		3220	$msg =~ s/\n//;
		3221
		3222	# limit the # of concurrent backtraces
		3223	if ($_log_backtrace < 2) {
		3224	++$_log_backtrace;
		3225	async {
		3226	my @bt = fork_call {
		3227	@addr = map { sprintf "%x", $_ } @addr;
		3228	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3229	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3230	or die "addr2line: $!";
		3231
		3232	my @funcs;
		3233	my @res = <$fh>;
		3234	chomp for @res;
		3235	while (@res) {
		3236	my ($func, $line) = splice @res, 0, 2, ();
		3237	push @funcs, "[$func] $line";
		3238	}
		3239
		3240	@funcs
		3241	};
		3242
		3243	LOG llevInfo, "[ABT] $msg\n";
		3244	LOG llevInfo, "[ABT] $_\n" for @bt;
		3245	--$_log_backtrace;
		3246	};
		3247	} else {
		3248	LOG llevInfo, "[ABT] $msg\n";
		3249	LOG llevInfo, "[ABT] [suppressed]\n";
		3250	}
		3251	}
		3252
		3253	# load additional modules
		3254	use cf::pod;
		3255
2725	END { cf::emergency_save }	3256	END { cf::emergency_save }
2726		3257
2727	1	3258	1
2728		3259

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