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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.236 by root, Thu Apr 12 14:18:05 2007 UTC vs.
Revision 1.296 by root, Wed Jul 4 07:09:06 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;
		23	use Coro::Storable;
21		24
		25	use JSON::XS 1.4 ();
22	use BDB ();	26	use BDB ();
23	use Data::Dumper;	27	use Data::Dumper;
24	use Digest::MD5;	28	use Digest::MD5;
25	use Fcntl;	29	use Fcntl;
26	use YAML::Syck ();	30	use YAML::Syck ();
…		…
28	use Time::HiRes;	32	use Time::HiRes;
29	use Compress::LZF;	33	use Compress::LZF;
30		34
31	# configure various modules to our taste	35	# configure various modules to our taste
32	#	36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
35		40
36	$Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
37		42
…		…
45	our %COMMAND = ();	50	our %COMMAND = ();
46	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
47		52
48	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
49	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
50	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
51	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
52		58
53	our $RELOAD; # number of reloads so far	59	our $RELOAD; # number of reloads so far
54	our @EVENT;	60	our @EVENT;
55	our $LIBDIR = datadir . "/ext";
56		61
57	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(!)
58	our $TICK_WATCHER;	75	our $TICK_WATCHER;
59	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
61	our $NEXT_TICK;	78	our $NEXT_TICK;
62	our $NOW;	79	our $NOW;
…		…
71	our $RUNTIME;	88	our $RUNTIME;
72		89
73	our %PLAYER; # all users	90	our %PLAYER; # all users
74	our %MAP; # all maps	91	our %MAP; # all maps
75	our $LINK_MAP; # the special {link} map, which is always available	92	our $LINK_MAP; # the special {link} map, which is always available
76	our $RANDOM_MAPS = cf::localdir . "/random";
77	our $BDB_ENV_DIR = cf::localdir . "/db";
78
79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
81		93
82	# 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 ∕
83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
84		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 $tick_start; # for load detecting purposes
		100
85	binmode STDOUT;	101	binmode STDOUT;
86	binmode STDERR;	102	binmode STDERR;
87		103
88	# read virtual server time, if available	104	# read virtual server time, if available
89	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
90	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
91	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
92	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
93	}	109	}
94		110
95	mkdir cf::localdir;	111	mkdir $_
96	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
97	mkdir cf::localdir . "/" . cf::tmpdir;
98	mkdir cf::localdir . "/" . cf::uniquedir;
99	mkdir $RANDOM_MAPS;
100	mkdir $BDB_ENV_DIR;
101		113
102	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
103		115
104	sub cf::map::normalise;	116	sub cf::map::normalise;
105		117
…		…
116	=item $cf::RUNTIME	128	=item $cf::RUNTIME
117		129
118	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
119	every server tick.	131	every server tick.
120		132
121	=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
122		136
123	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
124	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.
125		141
126	=item $cf::NOW	142	=item $cf::NOW
127		143
128	The time of the last (current) server tick.	144	The time of the last (current) server tick.
129		145
130	=item $cf::TICK	146	=item $cf::TICK
131		147
132	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.
133		159
134	=item %cf::CFG	160	=item %cf::CFG
135		161
136	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
137	from wherever your confdir points to.	163	from wherever your confdir points to.
138		164
139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	165	=item cf::wait_for_tick, cf::wait_for_tick_begin
140		166
141	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
142	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
143	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.
144	window of cpu time available, or simply to synchronise to the server tick.
145		170
146	=back	171	=back
147		172
148	=cut	173	=cut
149		174
150	BEGIN {	175	BEGIN {
151	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
152	my $msg = join "", @_;	177	my $msg = join "", @_;
153	utf8::encode $msg;
154		178
155	$msg .= "\n"	179	$msg .= "\n"
156	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
157		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
158	LOG llevError, $msg;	185	LOG llevError, $msg;
159	};	186	};
160	}	187	}
161		188
162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
164	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
165	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
166	@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';
167	@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)
168		196
169	# 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
170	# within the Safe compartment.	198	# within the Safe compartment.
171	for my $pkg (qw(	199	for my $pkg (qw(
172	cf::global cf::attachable	200	cf::global cf::attachable
…		…
180	}	208	}
181		209
182	$Event::DIED = sub {	210	$Event::DIED = sub {
183	warn "error in event callback: @_";	211	warn "error in event callback: @_";
184	};	212	};
		213
		214	#############################################################################
185		215
186	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
187		217
188	=over 4	218	=over 4
189		219
…		…
208	$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;
209	$d	239	$d
210	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
211	}	241	}
212		242
213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
214
215	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
216		244
217	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
218		246
219	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
220		248
221	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]) }
222		257
223	=item cf::lock_wait $string	258	=item cf::lock_wait $string
224		259
225	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
226		261
…		…
232	returned.	267	returned.
233		268
234	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
235	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
236		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
237	=cut	276	=cut
238		277
239	our %LOCK;	278	our %LOCK;
240		279
241	sub lock_wait($) {	280	sub lock_wait($) {
…		…
258		297
259	Coro::guard {	298	Coro::guard {
260	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
261	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
262	}	301	}
		302	}
		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
263	}	308	}
264		309
265	sub freeze_mainloop {	310	sub freeze_mainloop {
266	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
267		312
…		…
282		327
283	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
284		329
285	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
286		331
287	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
290		336
291	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
294	fast or be very important.	340	fast or be very important.
…		…
297		343
298	sub sync_job(&) {	344	sub sync_job(&) {
299	my ($job) = @_;	345	my ($job) = @_;
300		346
301	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
302	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
304		352
305	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
317		365
318	while ($busy) {	366	while ($busy) {
319	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
320	}	368	}
321		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
322	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
323	} else {	378	} else {
324	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
325		380
326	$job->()	381	$job->()
…		…
345	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
346		401
347	$coro	402	$coro
348	}	403	}
349		404
350	sub write_runtime {	405	=item fork_call { }, $args
351	my $guard = cf::lock_acquire "write_runtime";
352		406
353	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.
354		411
355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	412	=cut
356	or return;
357		413
358	my $value = $cf::RUNTIME + 90 + 10;	414	sub fork_call(&@) {
359	# 10 is the runtime save interval, for a monotonic clock	415	my ($cb, @args) = @_;
360	# 60 allows for the watchdog to kill the server.
361		416
362	(aio_write $fh, 0, (length $value), $value, 0) <= 0	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
363	and return;	418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
364		421
365	# always fsync - this file is important	422	if (my $pid = fork) {
366	aio_fsync $fh
367	and return;
368
369	close $fh	423	close $fh2;
370	or return;
371		424
372	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
373	and return;	426	$res = Coro::Storable::thaw $res;
374		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
375	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		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"
376	}	563	}
377		564
378	=item cf::datalog type => key => value, ...	565	=item cf::datalog type => key => value, ...
379		566
380	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.
…		…
398	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")
399	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
400		587
401	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>
402	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
403	crossfire+).	590	Crossfire TRT).
404		591
405	=over 4	592	=over 4
406		593
407	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
408		595
…		…
571	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
572		759
573	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
574	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
575	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
576	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
577		764
578	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
579	my $pkg = shift @arg;	766	my $pkg = shift @arg;
580		767
581	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
610	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
611	}	798	}
612		799
613	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
614	} else {	801	} else {
615	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
616	}	803	}
617		804
618	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
619	}	806	}
620		807
…		…
622	if (ref $_[0]) {	809	if (ref $_[0]) {
623	_object_attach @_;	810	_object_attach @_;
624	} else {	811	} else {
625	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
626	}	813	}
		814	_recalc_want;
627	};	815	};
628		816
629	# all those should be optimised	817	# all those should be optimised
630	sub cf::attachable::detach {	818	sub cf::attachable::detach {
631	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
634	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
635	reattach ($obj);	823	reattach ($obj);
636	} else {	824	} else {
637	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
638	}	826	}
		827	_recalc_want;
639	};	828	};
640		829
641	sub cf::attachable::attached {	830	sub cf::attachable::attached {
642	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
643		832
…		…
816	or return;	1005	or return;
817	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
818	}	1007	}
819		1008
820	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
821	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
822	return ($data, $av);	1011	return ($data, $av);
823	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
824		1019
825	#############################################################################	1020	#############################################################################
826	# command handling &c	1021	# command handling &c
827		1022
828	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1037	}
843		1038
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
845		1040
846	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.
847		1046
848	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
849	called.	1048	called.
850		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
851	=cut	1061	=cut
852		1062
853	sub register_extcmd {	1063	sub register_extcmd {
854	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
855		1065
856	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
857	}	1073	}
858		1074
859	cf::player->attach (	1075	cf::player->attach (
860	on_command => sub {	1076	on_command => sub {
861	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
870	cf::override;	1086	cf::override;
871	},	1087	},
872	on_extcmd => sub {	1088	on_extcmd => sub {
873	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
874		1090
875	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
876		1092
877	if (ref $msg) {	1093	if (ref $msg) {
878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
879	if (my %reply = $cb->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
880	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
886		1102
887	cf::override;	1103	cf::override;
888	},	1104	},
889	);	1105	);
890		1106
891	sub load_extension {
892	my ($path) = @_;
893
894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
895	my $base = $1;
896	my $pkg = $1;
897	$pkg =~ s/[^[:word:]]/_/g;
898	$pkg = "ext::$pkg";
899
900	warn "... loading '$path' into '$pkg'\n";
901
902	open my $fh, "<:utf8", $path
903	or die "$path: $!";
904
905	my $source =
906	"package $pkg; use strict; use utf8;\n"
907	. "#line 1 \"$path\"\n{\n"
908	. (do { local $/; <$fh> })
909	. "\n};\n1";
910
911	unless (eval $source) {
912	my $msg = $@ ? "$path: $@\n"
913	: "extension disabled.\n";
914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
915	warn $@;
916	warn "mandatory extension failed to load, exiting.\n";
917	exit 1;
918	}
919	die $@;
920	}
921
922	push @EXTS, $pkg;
923	}
924
925	sub load_extensions {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
926	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
927	next unless -r $ext;	1112	next unless -r $path;
928	eval {	1113
929	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;
930	1	1171	}
931	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
932	}	1177	};
933	}	1178	}
934		1179
935	#############################################################################	1180	#############################################################################
936		1181
		1182	=back
		1183
937	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
938		1185
939	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
940		1187
941	=cut	1188	=cut
…		…
953	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
954		1201
955	=cut	1202	=cut
956		1203
957	sub playerdir($) {	1204	sub playerdir($) {
958	cf::localdir	1205	"$PLAYERDIR/"
959	. "/"
960	. cf::playerdir
961	. "/"
962	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
963	}	1207	}
964		1208
965	sub path($) {	1209	sub path($) {
966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
1086	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1087		1331
1088	=cut	1332	=cut
1089		1333
1090	sub list_logins {	1334	sub list_logins {
1091	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1092	or return [];	1336	or return [];
1093		1337
1094	my @logins;	1338	my @logins;
1095		1339
1096	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1131	}	1375	}
1132		1376
1133	\@paths	1377	\@paths
1134	}	1378	}
1135		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	s/\s+\n/\n/g; # ws line-ends
		1418	s/\n\n+/\n/g; # double lines
		1419	s/^\n+//; # beginning lines
		1420	s/\n+$//; # ending lines
		1421
		1422	$_
		1423	}
		1424
		1425	sub hintmode {
		1426	$_[0]{hintmode} = $_[1] if @_ > 1;
		1427	$_[0]{hintmode}
		1428	}
		1429
1136	=item $player->ext_reply ($msgid, %msg)	1430	=item $player->ext_reply ($msgid, %msg)
1137		1431
1138	Sends an ext reply to the player.	1432	Sends an ext reply to the player.
1139		1433
1140	=cut	1434	=cut
1141		1435
1142	sub ext_reply($$%) {	1436	sub ext_reply($$%) {
1143	my ($self, $id, %msg) = @_;	1437	my ($self, $id, %msg) = @_;
1144		1438
1145	$msg{msgid} = $id;	1439	$msg{msgid} = $id;
1146		1440	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1147	$self->send ("ext " . cf::to_json \%msg);
1148	}	1441	}
1149		1442
1150	=item $player->ext_event ($type, %msg)	1443	=item $player->ext_event ($type, %msg)
1151		1444
1152	Sends an ext event to the client.	1445	Sends an ext event to the client.
…		…
1157	my ($self, $type, %msg) = @_;	1450	my ($self, $type, %msg) = @_;
1158		1451
1159	$self->ns->ext_event ($type, %msg);	1452	$self->ns->ext_event ($type, %msg);
1160	}	1453	}
1161		1454
1162	package cf;	1455	=head3 cf::region
		1456
		1457	=over 4
		1458
		1459	=cut
		1460
		1461	package cf::region;
		1462
		1463	=item cf::region::find_by_path $path
		1464
		1465	Tries to decuce the likely region for a map knowing only its path.
		1466
		1467	=cut
		1468
		1469	sub find_by_path($) {
		1470	my ($path) = @_;
		1471
		1472	my ($match, $specificity);
		1473
		1474	for my $region (list) {
		1475	if ($region->match && $path =~ $region->match) {
		1476	($match, $specificity) = ($region, $region->specificity)
		1477	if $region->specificity > $specificity;
		1478	}
		1479	}
		1480
		1481	$match
		1482	}
1163		1483
1164	=back	1484	=back
1165
1166		1485
1167	=head3 cf::map	1486	=head3 cf::map
1168		1487
1169	=over 4	1488	=over 4
1170		1489
…		…
1225	my ($self, $merge) = @_;	1544	my ($self, $merge) = @_;
1226		1545
1227	# we have to keep some variables in memory intact	1546	# we have to keep some variables in memory intact
1228	local $self->{path};	1547	local $self->{path};
1229	local $self->{load_path};	1548	local $self->{load_path};
1230	local $self->{deny_save};
1231	local $self->{deny_reset};
1232		1549
1233	$self->SUPER::thawer_merge ($merge);	1550	$self->SUPER::thawer_merge ($merge);
1234	}	1551	}
1235		1552
1236	sub normalise {	1553	sub normalise {
…		…
1308		1625
1309	# the original (read-only) location	1626	# the original (read-only) location
1310	sub load_path {	1627	sub load_path {
1311	my ($self) = @_;	1628	my ($self) = @_;
1312		1629
1313	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1630	"$MAPDIR/$self->{path}.map"
1314	}	1631	}
1315		1632
1316	# the temporary/swap location	1633	# the temporary/swap location
1317	sub save_path {	1634	sub save_path {
1318	my ($self) = @_;	1635	my ($self) = @_;
1319		1636
1320	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1637	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1321	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1638	"$TMPDIR/$path.map"
1322	}	1639	}
1323		1640
1324	# the unique path, undef == no special unique path	1641	# the unique path, undef == no special unique path
1325	sub uniq_path {	1642	sub uniq_path {
1326	my ($self) = @_;	1643	my ($self) = @_;
1327		1644
1328	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1645	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1329	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1646	"$UNIQUEDIR/$path"
1330	}	1647	}
1331		1648
1332	# and all this just because we cannot iterate over	1649	# and all this just because we cannot iterate over
1333	# all maps in C++...	1650	# all maps in C++...
1334	sub change_all_map_light {	1651	sub change_all_map_light {
1335	my ($change) = @_;	1652	my ($change) = @_;
1336		1653
1337	$_->change_map_light ($change)	1654	$_->change_map_light ($change)
1338	for grep $_->outdoor, values %cf::MAP;	1655	for grep $_->outdoor, values %cf::MAP;
		1656	}
		1657
		1658	sub decay_objects {
		1659	my ($self) = @_;
		1660
		1661	return if $self->{deny_reset};
		1662
		1663	$self->do_decay_objects;
1339	}	1664	}
1340		1665
1341	sub unlink_save {	1666	sub unlink_save {
1342	my ($self) = @_;	1667	my ($self) = @_;
1343		1668
…		…
1401	$self->load_header_orig	1726	$self->load_header_orig
1402	or return;	1727	or return;
1403	$self->prepare_orig;	1728	$self->prepare_orig;
1404	}	1729	}
1405		1730
		1731	$self->{deny_reset} = 1
		1732	if $self->no_reset;
		1733
		1734	$self->default_region (cf::region::find_by_path $self->{path})
		1735	unless $self->default_region;
		1736
1406	1	1737	1
1407	}	1738	}
1408		1739
1409	sub find;	1740	sub find;
1410	sub find {	1741	sub find {
…		…
1422	$map->{last_save} = $cf::RUNTIME;	1753	$map->{last_save} = $cf::RUNTIME;
1423		1754
1424	$map->load_header	1755	$map->load_header
1425	or return;	1756	or return;
1426		1757
1427	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1758	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1428	# doing this can freeze the server in a sync job, obviously	1759	# doing this can freeze the server in a sync job, obviously
1429	#$cf::WAIT_FOR_TICK->wait;	1760	#$cf::WAIT_FOR_TICK->wait;
1430	$map->reset;	1761	$map->reset;
1431	undef $guard;	1762	undef $guard;
1432	return find $path;	1763	return find $path;
…		…
1443	my ($self) = @_;	1774	my ($self) = @_;
1444		1775
1445	local $self->{deny_reset} = 1; # loading can take a long time	1776	local $self->{deny_reset} = 1; # loading can take a long time
1446		1777
1447	my $path = $self->{path};	1778	my $path = $self->{path};
		1779
		1780	{
1448	my $guard = cf::lock_acquire "map_load:$path";	1781	my $guard = cf::lock_acquire "map_load:$path";
1449		1782
1450	return if $self->in_memory != cf::MAP_SWAPPED;	1783	return if $self->in_memory != cf::MAP_SWAPPED;
1451		1784
1452	$self->in_memory (cf::MAP_LOADING);	1785	$self->in_memory (cf::MAP_LOADING);
1453		1786
1454	$self->alloc;	1787	$self->alloc;
1455		1788
1456	$self->pre_load;	1789	$self->pre_load;
1457
1458	$self->_load_objects ($self->{load_path}, 1)
1459	or return;
1460
1461	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1462	if delete $self->{load_original};
1463
1464	if (my $uniq = $self->uniq_path) {
1465	utf8::encode $uniq;
1466	if (aio_open $uniq, O_RDONLY, 0) {
1467	$self->clear_unique_items;
1468	$self->_load_objects ($uniq, 0);
1469	}
1470	}
1471
1472	Coro::cede;
1473
1474	# now do the right thing for maps
1475	$self->link_multipart_objects;
1476
1477	unless ($self->{deny_activate}) {
1478	$self->decay_objects;
1479	$self->fix_auto_apply;
1480	$self->update_buttons;
1481	Coro::cede;	1790	Coro::cede;
1482	$self->set_darkness_map;	1791
		1792	$self->_load_objects ($self->{load_path}, 1)
		1793	or return;
		1794
		1795	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1796	if delete $self->{load_original};
		1797
		1798	if (my $uniq = $self->uniq_path) {
		1799	utf8::encode $uniq;
		1800	if (aio_open $uniq, O_RDONLY, 0) {
		1801	$self->clear_unique_items;
		1802	$self->_load_objects ($uniq, 0);
		1803	}
		1804	}
		1805
		1806	Coro::cede;
		1807	# now do the right thing for maps
		1808	$self->link_multipart_objects;
1483	$self->difficulty ($self->estimate_difficulty)	1809	$self->difficulty ($self->estimate_difficulty)
1484	unless $self->difficulty;	1810	unless $self->difficulty;
1485	Coro::cede;	1811	Coro::cede;
		1812
		1813	unless ($self->{deny_activate}) {
		1814	$self->decay_objects;
		1815	$self->fix_auto_apply;
		1816	$self->update_buttons;
		1817	Coro::cede;
		1818	$self->set_darkness_map;
		1819	Coro::cede;
1486	$self->activate;	1820	$self->activate;
		1821	}
		1822
		1823	$self->in_memory (cf::MAP_IN_MEMORY);
1487	}	1824	}
1488		1825
1489	$self->post_load;	1826	$self->post_load;
1490
1491	$self->in_memory (cf::MAP_IN_MEMORY);
1492	}	1827	}
1493		1828
1494	sub customise_for {	1829	sub customise_for {
1495	my ($self, $ob) = @_;	1830	my ($self, $ob) = @_;
1496		1831
1497	return find "~" . $ob->name . "/" . $self->{path}	1832	return find "~" . $ob->name . "/" . $self->{path}
1498	if $self->per_player;	1833	if $self->per_player;
		1834
		1835	# return find "?party/" . $ob->name . "/" . $self->{path}
		1836	# if $self->per_party;
1499		1837
1500	$self	1838	$self
1501	}	1839	}
1502		1840
1503	# find and load all maps in the 3x3 area around a map	1841	# find and load all maps in the 3x3 area around a map
…		…
1614		1952
1615	sub reset_at {	1953	sub reset_at {
1616	my ($self) = @_;	1954	my ($self) = @_;
1617		1955
1618	# TODO: safety, remove and allow resettable per-player maps	1956	# TODO: safety, remove and allow resettable per-player maps
1619	return 1e99 if $self->isa ("ext::map_per_player");#d#
1620	return 1e99 if $self->{deny_reset};	1957	return 1e99 if $self->{deny_reset};
1621		1958
1622	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1959	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1623	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1960	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1624		1961
…		…
1635	my ($self) = @_;	1972	my ($self) = @_;
1636		1973
1637	my $lock = cf::lock_acquire "map_data:$self->{path}";	1974	my $lock = cf::lock_acquire "map_data:$self->{path}";
1638		1975
1639	return if $self->players;	1976	return if $self->players;
1640	return if $self->isa ("ext::map_per_player");#d#
1641		1977
1642	warn "resetting map ", $self->path;#d#	1978	warn "resetting map ", $self->path;
1643		1979
1644	$self->in_memory (cf::MAP_SWAPPED);	1980	$self->in_memory (cf::MAP_SWAPPED);
1645		1981
1646	# need to save uniques path	1982	# need to save uniques path
1647	unless ($self->{deny_save}) {	1983	unless ($self->{deny_save}) {
…		…
1679	$cf::MAP{$self->path} = $self;	2015	$cf::MAP{$self->path} = $self;
1680		2016
1681	$self->reset; # polite request, might not happen	2017	$self->reset; # polite request, might not happen
1682	}	2018	}
1683		2019
		2020	=item $maps = cf::map::tmp_maps
		2021
		2022	Returns an arrayref with all map paths of currently instantiated and saved
		2023	maps. May block.
		2024
		2025	=cut
		2026
		2027	sub tmp_maps() {
		2028	[
		2029	map {
		2030	utf8::decode $_;
		2031	/\.map$/
		2032	? normalise $_
		2033	: ()
		2034	} @{ aio_readdir $TMPDIR or [] }
		2035	]
		2036	}
		2037
		2038	=item $maps = cf::map::random_maps
		2039
		2040	Returns an arrayref with all map paths of currently instantiated and saved
		2041	random maps. May block.
		2042
		2043	=cut
		2044
		2045	sub random_maps() {
		2046	[
		2047	map {
		2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise "?random/$_"
		2051	: ()
		2052	} @{ aio_readdir $RANDOMDIR or [] }
		2053	]
		2054	}
		2055
1684	=item cf::map::unique_maps	2056	=item cf::map::unique_maps
1685		2057
1686	Returns an arrayref of paths of all shared maps that have	2058	Returns an arrayref of paths of all shared maps that have
1687	instantiated unique items. May block.	2059	instantiated unique items. May block.
1688		2060
1689	=cut	2061	=cut
1690		2062
1691	sub unique_maps() {	2063	sub unique_maps() {
1692	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2064	[
1693	or return;	2065	map {
1694
1695	my @paths;
1696
1697	for (@$files) {
1698	utf8::decode $_;	2066	utf8::decode $_;
1699	next if /\.pst$/;	2067	/\.map$/
1700	next unless /^$PATH_SEP/o;	2068	? normalise $_
1701		2069	: ()
1702	push @paths, cf::map::normalise $_;	2070	} @{ aio_readdir $UNIQUEDIR or [] }
1703	}	2071	]
1704
1705	\@paths
1706	}	2072	}
1707		2073
1708	package cf;	2074	package cf;
1709		2075
1710	=back	2076	=back
…		…
1756		2122
1757	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2123	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1758		2124
1759	if ($self->{record_replies}) {	2125	if ($self->{record_replies}) {
1760	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2126	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2127
1761	} else {	2128	} else {
		2129	my $pl = $self->contr;
		2130
		2131	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2132	my $diag = $pl->{npc_dialog};
		2133	$diag->{pl}->ext_reply (
		2134	$diag->{id},
		2135	msgtype => "reply",
		2136	msg => $diag->{pl}->expand_cfpod ($msg),
		2137	add_topics => []
		2138	);
		2139
		2140	} else {
1762	$msg = $npc->name . " says: $msg" if $npc;	2141	$msg = $npc->name . " says: $msg" if $npc;
1763	$self->message ($msg, $flags);	2142	$self->message ($msg, $flags);
		2143	}
1764	}	2144	}
1765	}	2145	}
1766		2146
1767	=item $player_object->may ("access")	2147	=item $player_object->may ("access")
1768		2148
…		…
1816	$self->deactivate_recursive;	2196	$self->deactivate_recursive;
1817		2197
1818	return if UNIVERSAL::isa $self->map, "ext::map_link";	2198	return if UNIVERSAL::isa $self->map, "ext::map_link";
1819		2199
1820	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2200	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1821	if $self->map;	2201	if $self->map && $self->map->{path} ne "{link}";
1822		2202
1823	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2203	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1824	}	2204	}
1825		2205
1826	sub cf::object::player::leave_link {	2206	sub cf::object::player::leave_link {
1827	my ($self, $map, $x, $y) = @_;	2207	my ($self, $map, $x, $y) = @_;
		2208
		2209	return unless $self->contr->active;
1828		2210
1829	my $link_pos = delete $self->{_link_pos};	2211	my $link_pos = delete $self->{_link_pos};
1830		2212
1831	unless ($map) {	2213	unless ($map) {
1832	# restore original map position	2214	# restore original map position
…		…
1855		2237
1856	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2238	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1857	$self->enter_map ($map, $x, $y);	2239	$self->enter_map ($map, $x, $y);
1858	}	2240	}
1859		2241
1860	cf::player->attach (
1861	on_logout => sub {
1862	my ($pl) = @_;
1863
1864	# abort map switching before logout
1865	if ($pl->ob->{_link_pos}) {
1866	cf::sync_job {
1867	$pl->ob->leave_link
1868	};
1869	}
1870	},
1871	on_login => sub {
1872	my ($pl) = @_;
1873
1874	# try to abort aborted map switching on player login :)
1875	# should happen only on crashes
1876	if ($pl->ob->{_link_pos}) {
1877	$pl->ob->enter_link;
1878	(async {
1879	$pl->ob->reply (undef,
1880	"There was an internal problem at your last logout, "
1881	. "the server will try to bring you to your intended destination in a second.",
1882	cf::NDI_RED);
1883	# we need this sleep as the login has a concurrent enter_exit running
1884	# and this sleep increases chances of the player not ending up in scorn
1885	Coro::Timer::sleep 1;
1886	$pl->ob->leave_link;
1887	})->prio (2);
1888	}
1889	},
1890	);
1891
1892	=item $player_object->goto ($path, $x, $y)	2242	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1893		2243
		2244	Moves the player to the given map-path and coordinates by first freezing
		2245	her, loading and preparing them map, calling the provided $check callback
		2246	that has to return the map if sucecssful, and then unfreezes the player on
		2247	the new (success) or old (failed) map position.
		2248
1894	=cut	2249	=cut
		2250
		2251	our $GOTOGEN;
1895		2252
1896	sub cf::object::player::goto {	2253	sub cf::object::player::goto {
1897	my ($self, $path, $x, $y) = @_;	2254	my ($self, $path, $x, $y, $check) = @_;
		2255
		2256	# do generation counting so two concurrent goto's will be executed in-order
		2257	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1898		2258
1899	$self->enter_link;	2259	$self->enter_link;
1900		2260
1901	(async {	2261	(async {
1902	my $map = eval {	2262	my $map = eval {
1903	my $map = cf::map::find $path;	2263	my $map = cf::map::find $path;
		2264
		2265	if ($map) {
1904	$map = $map->customise_for ($self) if $map;	2266	$map = $map->customise_for ($self);
		2267	$map = $check->($map) if $check && $map;
		2268	} else {
		2269	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2270	}
		2271
1905	$map	2272	$map
		2273	};
		2274
		2275	if ($@) {
		2276	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2277	LOG llevError | logBacktrace, Carp::longmess $@;
1906	} or	2278	}
1907	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1908		2279
		2280	if ($gen == $self->{_goto_generation}) {
		2281	delete $self->{_goto_generation};
1909	$self->leave_link ($map, $x, $y);	2282	$self->leave_link ($map, $x, $y);
		2283	}
1910	})->prio (1);	2284	})->prio (1);
1911	}	2285	}
1912		2286
1913	=item $player_object->enter_exit ($exit_object)	2287	=item $player_object->enter_exit ($exit_object)
1914		2288
…		…
1953		2327
1954	$rmp->{random_seed} ||= $exit->random_seed;	2328	$rmp->{random_seed} ||= $exit->random_seed;
1955		2329
1956	my $data = cf::to_json $rmp;	2330	my $data = cf::to_json $rmp;
1957	my $md5 = Digest::MD5::md5_hex $data;	2331	my $md5 = Digest::MD5::md5_hex $data;
1958	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2332	my $meta = "$RANDOMDIR/$md5.meta";
1959		2333
1960	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2334	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1961	aio_write $fh, 0, (length $data), $data, 0;	2335	aio_write $fh, 0, (length $data), $data, 0;
1962	undef $fh;	2336	undef $fh;
1963	aio_rename "$meta~", $meta;	2337	aio_rename "$meta~", $meta;
…		…
1982	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2356	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1983	my $hp = $exit->stats->hp;	2357	my $hp = $exit->stats->hp;
1984	my $sp = $exit->stats->sp;	2358	my $sp = $exit->stats->sp;
1985		2359
1986	$self->enter_link;	2360	$self->enter_link;
		2361
		2362	# if exit is damned, update players death & WoR home-position
		2363	$self->contr->savebed ($slaying, $hp, $sp)
		2364	if $exit->flag (FLAG_DAMNED);
1987		2365
1988	(async {	2366	(async {
1989	$self->deactivate_recursive; # just to be sure	2367	$self->deactivate_recursive; # just to be sure
1990	unless (eval {	2368	unless (eval {
1991	$self->goto ($slaying, $hp, $sp);	2369	$self->goto ($slaying, $hp, $sp);
…		…
2019		2397
2020	utf8::encode $text;	2398	utf8::encode $text;
2021	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2399	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2022	}	2400	}
2023		2401
		2402	=item $client->send_msg ($color, $type, $msg, [extra...])
		2403
		2404	Send a drawinfo or msg packet to the client, formatting the msg for the
		2405	client if neccessary. C<$type> should be a string identifying the type of
		2406	the message, with C<log> being the default. If C<$color> is negative, suppress
		2407	the message unless the client supports the msg packet.
		2408
		2409	=cut
		2410
		2411	sub cf::client::send_msg {
		2412	my ($self, $color, $type, $msg, @extra) = @_;
		2413
		2414	$msg = $self->pl->expand_cfpod ($msg);
		2415
		2416	return unless @extra || length $msg;
		2417
		2418	if ($self->can_msg) {
		2419	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2420	} else {
		2421	# replace some tags by gcfclient-compatible ones
		2422	for ($msg) {
		2423	1 while
		2424	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2425	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2426	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2427	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2428	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2429	}
		2430
		2431	if ($color >= 0) {
		2432	if (0 && $msg =~ /\[/) {
		2433	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2434	} else {
		2435	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2436	$self->send_packet ("drawinfo $color $msg")
		2437	}
		2438	}
		2439	}
		2440	}
		2441
2024	=item $client->ext_event ($type, %msg)	2442	=item $client->ext_event ($type, %msg)
2025		2443
2026	Sends an exti event to the client.	2444	Sends an ext event to the client.
2027		2445
2028	=cut	2446	=cut
2029		2447
2030	sub cf::client::ext_event($$%) {	2448	sub cf::client::ext_event($$%) {
2031	my ($self, $type, %msg) = @_;	2449	my ($self, $type, %msg) = @_;
2032		2450
2033	$msg{msgtype} = "event_$type";	2451	$msg{msgtype} = "event_$type";
2034	$self->send_packet ("ext " . cf::to_json \%msg);	2452	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2035	}	2453	}
2036		2454
2037	=item $success = $client->query ($flags, "text", \&cb)	2455	=item $success = $client->query ($flags, "text", \&cb)
2038		2456
2039	Queues a query to the client, calling the given callback with	2457	Queues a query to the client, calling the given callback with
2040	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2458	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2041	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2459	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2042		2460
2043	Queries can fail, so check the return code. Or don't, as queries will become	2461	Queries can fail, so check the return code. Or don't, as queries will
2044	reliable at some point in the future.	2462	become reliable at some point in the future.
2045		2463
2046	=cut	2464	=cut
2047		2465
2048	sub cf::client::query {	2466	sub cf::client::query {
2049	my ($self, $flags, $text, $cb) = @_;	2467	my ($self, $flags, $text, $cb) = @_;
…		…
2057	utf8::encode $text;	2475	utf8::encode $text;
2058	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2476	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2059		2477
2060	$self->send_packet ($self->{query_queue}[0][0])	2478	$self->send_packet ($self->{query_queue}[0][0])
2061	if @{ $self->{query_queue} } == 1;	2479	if @{ $self->{query_queue} } == 1;
		2480
		2481	1
2062	}	2482	}
2063		2483
2064	cf::client->attach (	2484	cf::client->attach (
		2485	on_connect => sub {
		2486	my ($ns) = @_;
		2487
		2488	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2489	},
2065	on_reply => sub {	2490	on_reply => sub {
2066	my ($ns, $msg) = @_;	2491	my ($ns, $msg) = @_;
2067		2492
2068	# this weird shuffling is so that direct followup queries	2493	# this weird shuffling is so that direct followup queries
2069	# get handled first	2494	# get handled first
…		…
2080	$ns->send_packet ($ns->{query_queue}[0][0]);	2505	$ns->send_packet ($ns->{query_queue}[0][0]);
2081	} else {	2506	} else {
2082	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2507	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2083	}	2508	}
2084	}	2509	}
		2510	},
		2511	on_exticmd => sub {
		2512	my ($ns, $buf) = @_;
		2513
		2514	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2515
		2516	if (ref $msg) {
		2517	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2518	if (my %reply = $cb->($ns, $msg)) {
		2519	$reply{msgid} = $msg->{msgid};
		2520	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2521	}
		2522	}
		2523	} else {
		2524	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2525	}
		2526
		2527	cf::override;
2085	},	2528	},
2086	);	2529	);
2087		2530
2088	=item $client->async (\&cb)	2531	=item $client->async (\&cb)
2089		2532
…		…
2228	=back	2671	=back
2229		2672
2230	=cut	2673	=cut
2231		2674
2232	#############################################################################	2675	#############################################################################
2233
2234	=head2 EXTENSION DATABASE SUPPORT
2235
2236	Crossfire maintains a very simple database for extension use. It can
2237	currently store anything that can be serialised using Storable, which
2238	excludes objects.
2239
2240	The parameter C<$family> should best start with the name of the extension
2241	using it, it should be unique.
2242
2243	=over 4
2244
2245	=item $value = cf::db_get $family => $key
2246
2247	Returns a single value from the database.
2248
2249	=item cf::db_put $family => $key => $value
2250
2251	Stores the given C<$value> in the family.
2252
2253	=cut
2254
2255	our $DB;
2256
2257	sub db_init {
2258	unless ($DB) {
2259	$DB = BDB::db_create $DB_ENV;
2260
2261	cf::sync_job {
2262	eval {
2263	$DB->set_flags (BDB::CHKSUM);
2264
2265	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2266	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2267	cf::cleanup "db_open(db): $!" if $!;
2268	};
2269	cf::cleanup "db_open(db): $@" if $@;
2270	};
2271
2272	my $path = cf::localdir . "/database.pst";
2273	if (stat $path) {
2274	cf::sync_job {
2275	my $pst = Storable::retrieve $path;
2276
2277	cf::db_put (board => data => $pst->{board});
2278	cf::db_put (guildrules => data => $pst->{guildrules});
2279	cf::db_put (rent => balance => $pst->{rent}{balance});
2280	BDB::db_env_txn_checkpoint $DB_ENV;
2281
2282	unlink $path;
2283	};
2284	}
2285	}
2286	}
2287
2288	sub db_get($$) {
2289	my $key = "$_[0]/$_[1]";
2290
2291	cf::sync_job {
2292	BDB::db_get $DB, undef, $key, my $data;
2293
2294	$! ? ()
2295	: Compress::LZF::sthaw $data
2296	}
2297	}
2298
2299	sub db_put($$$) {
2300	BDB::dbreq_pri 4;
2301	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2302	}
2303
2304	#############################################################################
2305	# the server's init and main functions	2676	# the server's init and main functions
2306		2677
2307	sub load_facedata {	2678	sub load_facedata($) {
2308	my $path = sprintf "%s/facedata", cf::datadir;	2679	my ($path) = @_;
2309		2680
2310	warn "loading facedata from $path\n";	2681	warn "loading facedata from $path\n";
2311		2682
2312	my $facedata;	2683	my $facedata;
2313	0 < aio_load $path, $facedata	2684	0 < aio_load $path, $facedata
2314	or die "$path: $!";	2685	or die "$path: $!";
2315		2686
2316	Coro::cede;
2317	$facedata = Storable::thaw $facedata;	2687	$facedata = Coro::Storable::thaw $facedata;
2318	Coro::cede;
2319		2688
2320	$facedata->{version} == 2	2689	$facedata->{version} == 2
2321	or cf::cleanup "$path: version mismatch, cannot proceed.";	2690	or cf::cleanup "$path: version mismatch, cannot proceed.";
2322		2691
2323	{	2692	{
…		…
2356	}	2725	}
2357		2726
2358	1	2727	1
2359	}	2728	}
2360		2729
		2730	sub reload_regions {
		2731	load_resource_file "$MAPDIR/regions"
		2732	or die "unable to load regions file\n";
		2733	}
		2734
		2735	sub reload_facedata {
		2736	load_facedata "$DATADIR/facedata"
		2737	or die "unable to load facedata\n";
		2738	}
		2739
		2740	sub reload_archetypes {
		2741	load_resource_file "$DATADIR/archetypes"
		2742	or die "unable to load archetypes\n";
		2743	#d# NEED to laod twice to resolve forward references
		2744	# this really needs to be done in an extra post-pass
		2745	# (which needs to be synchronous, so solve it differently)
		2746	load_resource_file "$DATADIR/archetypes"
		2747	or die "unable to load archetypes\n";
		2748	}
		2749
		2750	sub reload_treasures {
		2751	load_resource_file "$DATADIR/treasures"
		2752	or die "unable to load treasurelists\n";
		2753	}
		2754
2361	sub reload_resources {	2755	sub reload_resources {
2362	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2756	warn "reloading resource files...\n";
2363	or die "unable to load regions file\n";#d#	2757
		2758	reload_regions;
2364	load_facedata	2759	reload_facedata;
2365	or die "unable to load facedata\n";#d#	2760	#reload_archetypes;#d#
		2761	reload_archetypes;
		2762	reload_treasures;
		2763
		2764	warn "finished reloading resource files\n";
2366	}	2765	}
2367		2766
2368	sub init {	2767	sub init {
2369	reload_resources;	2768	reload_resources;
2370	}	2769	}
2371		2770
2372	sub cfg_load {	2771	sub cfg_load {
2373	open my $fh, "<:utf8", cf::confdir . "/config"	2772	open my $fh, "<:utf8", "$CONFDIR/config"
2374	or return;	2773	or return;
2375		2774
2376	local $/;	2775	local $/;
2377	*CFG = YAML::Syck::Load <$fh>;	2776	*CFG = YAML::Syck::Load <$fh>;
2378		2777
…		…
2423	},	2822	},
2424	);	2823	);
2425	}	2824	}
2426	}	2825	}
2427		2826
		2827	sub write_runtime {
		2828	my $runtime = "$LOCALDIR/runtime";
		2829
		2830	# first touch the runtime file to show we are still running:
		2831	# the fsync below can take a very very long time.
		2832
		2833	IO::AIO::aio_utime $runtime, undef, undef;
		2834
		2835	my $guard = cf::lock_acquire "write_runtime";
		2836
		2837	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2838	or return;
		2839
		2840	my $value = $cf::RUNTIME + 90 + 10;
		2841	# 10 is the runtime save interval, for a monotonic clock
		2842	# 60 allows for the watchdog to kill the server.
		2843
		2844	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2845	and return;
		2846
		2847	# always fsync - this file is important
		2848	aio_fsync $fh
		2849	and return;
		2850
		2851	# touch it again to show we are up-to-date
		2852	aio_utime $fh, undef, undef;
		2853
		2854	close $fh
		2855	or return;
		2856
		2857	aio_rename "$runtime~", $runtime
		2858	and return;
		2859
		2860	warn "runtime file written.\n";
		2861
		2862	1
		2863	}
		2864
2428	sub emergency_save() {	2865	sub emergency_save() {
2429	my $freeze_guard = cf::freeze_mainloop;	2866	my $freeze_guard = cf::freeze_mainloop;
2430		2867
2431	warn "enter emergency perl save\n";	2868	warn "enter emergency perl save\n";
2432		2869
…		…
2463		2900
2464	warn Carp::longmess "post_cleanup backtrace"	2901	warn Carp::longmess "post_cleanup backtrace"
2465	if $make_core;	2902	if $make_core;
2466	}	2903	}
2467		2904
2468	sub reload() {	2905	sub do_reload_perl() {
2469	# can/must only be called in main	2906	# can/must only be called in main
2470	if ($Coro::current != $Coro::main) {	2907	if ($Coro::current != $Coro::main) {
2471	warn "can only reload from main coroutine";	2908	warn "can only reload from main coroutine";
2472	return;	2909	return;
2473	}	2910	}
…		…
2507	%EXT_CORO = ();	2944	%EXT_CORO = ();
2508		2945
2509	warn "removing commands";	2946	warn "removing commands";
2510	%COMMAND = ();	2947	%COMMAND = ();
2511		2948
2512	warn "removing ext commands";	2949	warn "removing ext/exti commands";
2513	%EXTCMD = ();	2950	%EXTCMD = ();
		2951	%EXTICMD = ();
2514		2952
2515	warn "unloading/nuking all extensions";	2953	warn "unloading/nuking all extensions";
2516	for my $pkg (@EXTS) {	2954	for my $pkg (@EXTS) {
2517	warn "... unloading $pkg";	2955	warn "... unloading $pkg";
2518		2956
…		…
2548	Symbol::delete_package "safe::$_"	2986	Symbol::delete_package "safe::$_"
2549	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2987	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2550		2988
2551	warn "unloading cf.pm \"a bit\"";	2989	warn "unloading cf.pm \"a bit\"";
2552	delete $INC{"cf.pm"};	2990	delete $INC{"cf.pm"};
		2991	delete $INC{"cf/pod.pm"};
2553		2992
2554	# don't, removes xs symbols, too,	2993	# don't, removes xs symbols, too,
2555	# and global variables created in xs	2994	# and global variables created in xs
2556	#Symbol::delete_package __PACKAGE__;	2995	#Symbol::delete_package __PACKAGE__;
2557		2996
…		…
2572	warn "reattaching attachments to maps";	3011	warn "reattaching attachments to maps";
2573	reattach $_ for values %MAP;	3012	reattach $_ for values %MAP;
2574	warn "reattaching attachments to players";	3013	warn "reattaching attachments to players";
2575	reattach $_ for values %PLAYER;	3014	reattach $_ for values %PLAYER;
2576		3015
2577	warn "loading reloadable resources";
2578	reload_resources;
2579
2580	warn "leaving sync_job";	3016	warn "leaving sync_job";
2581		3017
2582	1	3018	1
2583	} or do {	3019	} or do {
2584	warn $@;	3020	warn $@;
…		…
2589	warn "reloaded";	3025	warn "reloaded";
2590	};	3026	};
2591		3027
2592	our $RELOAD_WATCHER; # used only during reload	3028	our $RELOAD_WATCHER; # used only during reload
2593		3029
		3030	sub reload_perl() {
		3031	# doing reload synchronously and two reloads happen back-to-back,
		3032	# coro crashes during coro_state_free->destroy here.
		3033
		3034	$RELOAD_WATCHER ||= Event->timer (
		3035	reentrant => 0,
		3036	after => 0,
		3037	data => WF_AUTOCANCEL,
		3038	cb => sub {
		3039	do_reload_perl;
		3040	undef $RELOAD_WATCHER;
		3041	},
		3042	);
		3043	}
		3044
2594	register_command "reload" => sub {	3045	register_command "reload" => sub {
2595	my ($who, $arg) = @_;	3046	my ($who, $arg) = @_;
2596		3047
2597	if ($who->flag (FLAG_WIZ)) {	3048	if ($who->flag (FLAG_WIZ)) {
2598	$who->message ("reloading server.");	3049	$who->message ("reloading server.");
2599		3050	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	}	3051	}
2613	};	3052	};
2614		3053
2615	unshift @INC, $LIBDIR;	3054	unshift @INC, $LIBDIR;
2616		3055
2617	my $bug_warning = 0;	3056	my $bug_warning = 0;
2618		3057
		3058	our @WAIT_FOR_TICK;
		3059	our @WAIT_FOR_TICK_BEGIN;
		3060
		3061	sub wait_for_tick {
		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, $signal;
		3067	$signal->wait;
		3068	}
		3069
		3070	sub wait_for_tick_begin {
		3071	return unless $TICK_WATCHER->is_active;
		3072	return if $Coro::current == $Coro::main;
		3073
		3074	my $signal = new Coro::Signal;
		3075	push @WAIT_FOR_TICK_BEGIN, $signal;
		3076	$signal->wait;
		3077	}
		3078
		3079	my $min = 1e6;#d#
		3080	my $avg = 10;
2619	$TICK_WATCHER = Event->timer (	3081	$TICK_WATCHER = Event->timer (
2620	reentrant => 0,	3082	reentrant => 0,
2621	parked => 1,	3083	parked => 1,
2622	prio => 0,	3084	prio => 0,
2623	at => $NEXT_TICK || $TICK,	3085	at => $NEXT_TICK || $TICK,
…		…
2627	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3089	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2628	unless ++$bug_warning > 10;	3090	unless ++$bug_warning > 10;
2629	return;	3091	return;
2630	}	3092	}
2631		3093
2632	$NOW = Event::time;	3094	$NOW = $tick_start = Event::time;
2633		3095
2634	cf::server_tick; # one server iteration	3096	cf::server_tick; # one server iteration
		3097
		3098	0 && sync_job {#d#
		3099	for(1..10) {
		3100	my $t = Event::time;
		3101	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3102	or die;
		3103
		3104	$map->width (50);
		3105	$map->height (50);
		3106	$map->alloc;
		3107	$map->_load_objects ("/tmp/x.map", 1);
		3108	my $t = Event::time - $t;
		3109
		3110	#next unless $t < 0.0013;#d#
		3111	if ($t < $min) {
		3112	$min = $t;
		3113	}
		3114	$avg = $avg * 0.99 + $t * 0.01;
		3115	}
		3116	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3117	exit 0;
		3118	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3119	};
		3120
2635	$RUNTIME += $TICK;	3121	$RUNTIME += $TICK;
2636	$NEXT_TICK += $TICK;	3122	$NEXT_TICK += $TICK;
2637		3123
2638	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3124	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2639	$NEXT_RUNTIME_WRITE = $NOW + 10;	3125	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2641	write_runtime	3127	write_runtime
2642	or warn "ERROR: unable to write runtime file: $!";	3128	or warn "ERROR: unable to write runtime file: $!";
2643	};	3129	};
2644	}	3130	}
2645		3131
2646	$WAIT_FOR_TICK->broadcast;
2647	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2648
2649	# my $AFTER = Event::time;	3132	# my $AFTER = Event::time;
2650	# warn $AFTER - $NOW;#d#	3133	# warn $AFTER - $NOW;#d#
2651		3134
		3135	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3136	$sig->send;
		3137	}
		3138	while (my $sig = shift @WAIT_FOR_TICK) {
		3139	$sig->send;
		3140	}
		3141
		3142	$NOW = Event::time;
		3143
2652	# if we are delayed by four ticks or more, skip them all	3144	# if we are delayed by four ticks or more, skip them all
2653	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3145	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2654		3146
2655	$TICK_WATCHER->at ($NEXT_TICK);	3147	$TICK_WATCHER->at ($NEXT_TICK);
2656	$TICK_WATCHER->start;	3148	$TICK_WATCHER->start;
		3149
		3150	$LOAD = ($NOW - $tick_start) / $TICK;
		3151	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3152
		3153	_post_tick;
		3154
		3155
2657	},	3156	},
2658	);	3157	);
2659		3158
2660	{	3159	{
2661	BDB::max_poll_time $TICK * 0.1;	3160	BDB::max_poll_time $TICK * 0.1;
…		…
2689		3188
2690	cf::sync_job {	3189	cf::sync_job {
2691	eval {	3190	eval {
2692	BDB::db_env_open	3191	BDB::db_env_open
2693	$DB_ENV,	3192	$DB_ENV,
2694	$BDB_ENV_DIR,	3193	$BDBDIR,
2695	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3194	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2696	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3195	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2697	0666;	3196	0666;
2698		3197
2699	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3198	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2700		3199
2701	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3200	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2702	$DB_ENV->set_lk_detect;	3201	$DB_ENV->set_lk_detect;
2703	};	3202	};
2704		3203
…		…
2720	prio => 6,	3219	prio => 6,
2721	cb => \&IO::AIO::poll_cb,	3220	cb => \&IO::AIO::poll_cb,
2722	);	3221	);
2723	}	3222	}
2724		3223
		3224	my $_log_backtrace;
		3225
		3226	sub _log_backtrace {
		3227	my ($msg, @addr) = @_;
		3228
		3229	$msg =~ s/\n//;
		3230
		3231	# limit the # of concurrent backtraces
		3232	if ($_log_backtrace < 2) {
		3233	++$_log_backtrace;
		3234	async {
		3235	my @bt = fork_call {
		3236	@addr = map { sprintf "%x", $_ } @addr;
		3237	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3238	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3239	or die "addr2line: $!";
		3240
		3241	my @funcs;
		3242	my @res = <$fh>;
		3243	chomp for @res;
		3244	while (@res) {
		3245	my ($func, $line) = splice @res, 0, 2, ();
		3246	push @funcs, "[$func] $line";
		3247	}
		3248
		3249	@funcs
		3250	};
		3251
		3252	LOG llevInfo, "[ABT] $msg\n";
		3253	LOG llevInfo, "[ABT] $_\n" for @bt;
		3254	--$_log_backtrace;
		3255	};
		3256	} else {
		3257	LOG llevInfo, "[ABT] $msg\n";
		3258	LOG llevInfo, "[ABT] [suppressed]\n";
		3259	}
		3260	}
		3261
		3262	# load additional modules
		3263	use cf::pod;
		3264
2725	END { cf::emergency_save }	3265	END { cf::emergency_save }
2726		3266
2727	1	3267	1
2728		3268

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