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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.223 by root, Sun Mar 11 02:12:44 2007 UTC vs.
Revision 1.291 by root, Tue Jul 3 00:54:44 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.5 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
20	use BDB ();	26	use BDB ();
21	use Data::Dumper;	27	use Data::Dumper;
22	use Digest::MD5;	28	use Digest::MD5;
23	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
24	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
25	use YAML::Syck ();
26	use Time::HiRes;	32	use Time::HiRes;
27	use Compress::LZF;	33	use Compress::LZF;
28		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		40
31	use Event; $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
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		42
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
37		45
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		47
		48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		49
40	our %COMMAND = ();	50	our %COMMAND = ();
41	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
42		52
43	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
47		58
48	our $RELOAD; # number of reloads so far	59	our $RELOAD; # number of reloads so far
49	our @EVENT;	60	our @EVENT;
50	our $LIBDIR = datadir . "/ext";
51		61
52	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(!)
53	our $TICK_WATCHER;	75	our $TICK_WATCHER;
54	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
55	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
56	our $NEXT_TICK;	78	our $NEXT_TICK;
57	our $NOW;	79	our $NOW;
…		…
66	our $RUNTIME;	88	our $RUNTIME;
67		89
68	our %PLAYER; # all users	90	our %PLAYER; # all users
69	our %MAP; # all maps	91	our %MAP; # all maps
70	our $LINK_MAP; # the special {link} map, which is always available	92	our $LINK_MAP; # the special {link} map, which is always available
71	our $RANDOM_MAPS = cf::localdir . "/random";
72	our $BDB_ENV_DIR = cf::localdir . "/db";
73
74	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
75	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
76		93
77	# 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 ∕
78	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
79		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 $tick_start; # for load detecting purposes
		100
80	binmode STDOUT;	101	binmode STDOUT;
81	binmode STDERR;	102	binmode STDERR;
82		103
83	# read virtual server time, if available	104	# read virtual server time, if available
84	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
85	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
86	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
87	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
88	}	109	}
89		110
90	mkdir cf::localdir;	111	mkdir $_
91	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
92	mkdir cf::localdir . "/" . cf::tmpdir;
93	mkdir cf::localdir . "/" . cf::uniquedir;
94	mkdir $RANDOM_MAPS;
95	mkdir $BDB_ENV_DIR;
96		113
97	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
98		115
99	sub cf::map::normalise;	116	sub cf::map::normalise;
100		117
…		…
111	=item $cf::RUNTIME	128	=item $cf::RUNTIME
112		129
113	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
114	every server tick.	131	every server tick.
115		132
116	=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
117		136
118	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
119	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.
120		141
121	=item $cf::NOW	142	=item $cf::NOW
122		143
123	The time of the last (current) server tick.	144	The time of the last (current) server tick.
124		145
125	=item $cf::TICK	146	=item $cf::TICK
126		147
127	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.
128		159
129	=item %cf::CFG	160	=item %cf::CFG
130		161
131	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
132	from wherever your confdir points to.	163	from wherever your confdir points to.
133		164
134	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	165	=item cf::wait_for_tick, cf::wait_for_tick_begin
135		166
136	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
137	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
138	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.
139	window of cpu time available, or simply to synchronise to the server tick.
140		170
141	=back	171	=back
142		172
143	=cut	173	=cut
144		174
145	BEGIN {	175	BEGIN {
146	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
147	my $msg = join "", @_;	177	my $msg = join "", @_;
148	utf8::encode $msg;
149		178
150	$msg .= "\n"	179	$msg .= "\n"
151	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
152		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
153	LOG llevError, $msg;	185	LOG llevError, $msg;
154	};	186	};
155	}	187	}
156		188
157	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
158	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
159	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
160	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
161	@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';
162	@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)
163		196
164	# 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
165	# within the Safe compartment.	198	# within the Safe compartment.
166	for my $pkg (qw(	199	for my $pkg (qw(
167	cf::global cf::attachable	200	cf::global cf::attachable
…		…
175	}	208	}
176		209
177	$Event::DIED = sub {	210	$Event::DIED = sub {
178	warn "error in event callback: @_";	211	warn "error in event callback: @_";
179	};	212	};
		213
		214	#############################################################################
180		215
181	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
182		217
183	=over 4	218	=over 4
184		219
…		…
203	$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;
204	$d	239	$d
205	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
206	}	241	}
207		242
208	use JSON::Syck (); # TODO# replace by JSON::PC once working
209
210	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
211		244
212	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
213		246
214	=cut
215
216	sub from_json($) {
217	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
218	JSON::Syck::Load $_[0]
219	}
220
221	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
222		248
223	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
224		250
225	=cut	251	=cut
226		252
227	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
228	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
229	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
230	}	256	sub from_json ($) { $json_coder->decode ($_[0]) }
231		257
232	=item cf::lock_wait $string	258	=item cf::lock_wait $string
233		259
234	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
235		261
…		…
241	returned.	267	returned.
242		268
243	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
244	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
245		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
246	=cut	276	=cut
247		277
248	our %LOCK;	278	our %LOCK;
249		279
250	sub lock_wait($) {	280	sub lock_wait($) {
…		…
267		297
268	Coro::guard {	298	Coro::guard {
269	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
270	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
271	}	301	}
		302	}
		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
272	}	308	}
273		309
274	sub freeze_mainloop {	310	sub freeze_mainloop {
275	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
276		312
…		…
291		327
292	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
293		329
294	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
295		331
296	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
297	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
298	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
299		336
300	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
301	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
302	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
303	fast or be very important.	340	fast or be very important.
…		…
306		343
307	sub sync_job(&) {	344	sub sync_job(&) {
308	my ($job) = @_;	345	my ($job) = @_;
309		346
310	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
311	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
312	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
313		352
314	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
315	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
326		365
327	while ($busy) {	366	while ($busy) {
328	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
329	}	368	}
330		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
331	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
332	} else {	378	} else {
333	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
334		380
335	$job->()	381	$job->()
…		…
354	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
355		401
356	$coro	402	$coro
357	}	403	}
358		404
359	sub write_runtime {	405	=item fork_call { }, $args
360	my $guard = cf::lock_acquire "write_runtime";
361		406
362	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.
363		411
364	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	412	=cut
365	or return;
366		413
367	my $value = $cf::RUNTIME + 90 + 10;	414	sub fork_call(&@) {
368	# 10 is the runtime save interval, for a monotonic clock	415	my ($cb, @args) = @_;
369	# 60 allows for the watchdog to kill the server.
370		416
371	(aio_write $fh, 0, (length $value), $value, 0) <= 0	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
372	and return;	418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
373		421
374	# always fsync - this file is important	422	if (my $pid = fork) {
375	aio_fsync $fh
376	and return;
377
378	close $fh	423	close $fh2;
379	or return;
380		424
381	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
382	and return;	426	$res = Coro::Storable::thaw $res;
383		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
384	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		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"
		563	}
		564
		565	=item cf::datalog type => key => value, ...
		566
		567	Log a datalog packet of the given type with the given key-value pairs.
		568
		569	=cut
		570
		571	sub datalog($@) {
		572	my ($type, %kv) = @_;
		573	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
385	}	574	}
386		575
387	=back	576	=back
388		577
389	=cut	578	=cut
…		…
396	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")
397	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
398		587
399	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>
400	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
401	crossfire+).	590	Crossfire TRT).
402		591
403	=over 4	592	=over 4
404		593
405	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
406		595
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
570		759
571	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		764
576	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	766	my $pkg = shift @arg;
578		767
579	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
608	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
609	}	798	}
610		799
611	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
612	} else {	801	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
614	}	803	}
615		804
616	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
617	}	806	}
618		807
…		…
620	if (ref $_[0]) {	809	if (ref $_[0]) {
621	_object_attach @_;	810	_object_attach @_;
622	} else {	811	} else {
623	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
624	}	813	}
		814	_recalc_want;
625	};	815	};
626		816
627	# all those should be optimised	817	# all those should be optimised
628	sub cf::attachable::detach {	818	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
633	reattach ($obj);	823	reattach ($obj);
634	} else {	824	} else {
635	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
636	}	826	}
		827	_recalc_want;
637	};	828	};
638		829
639	sub cf::attachable::attached {	830	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
641		832
…		…
814	or return;	1005	or return;
815	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
816	}	1007	}
817		1008
818	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
820	return ($data, $av);	1011	return ($data, $av);
821	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
822		1019
823	#############################################################################	1020	#############################################################################
824	# command handling &c	1021	# command handling &c
825		1022
826	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1037	}
841		1038
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1040
844	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.
845		1046
846	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
847	called.	1048	called.
848		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
849	=cut	1061	=cut
850		1062
851	sub register_extcmd {	1063	sub register_extcmd {
852	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
853		1065
854	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
855	}	1073	}
856		1074
857	cf::player->attach (	1075	cf::player->attach (
858	on_command => sub {	1076	on_command => sub {
859	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
868	cf::override;	1086	cf::override;
869	},	1087	},
870	on_extcmd => sub {	1088	on_extcmd => sub {
871	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
872		1090
873	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
874		1092
875	if (ref $msg) {	1093	if (ref $msg) {
876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
877	if (my %reply = $cb->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
878	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
884		1102
885	cf::override;	1103	cf::override;
886	},	1104	},
887	);	1105	);
888		1106
889	sub load_extension {
890	my ($path) = @_;
891
892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
893	my $base = $1;
894	my $pkg = $1;
895	$pkg =~ s/[^[:word:]]/_/g;
896	$pkg = "ext::$pkg";
897
898	warn "... loading '$path' into '$pkg'\n";
899
900	open my $fh, "<:utf8", $path
901	or die "$path: $!";
902
903	my $source =
904	"package $pkg; use strict; use utf8;\n"
905	. "#line 1 \"$path\"\n{\n"
906	. (do { local $/; <$fh> })
907	. "\n};\n1";
908
909	unless (eval $source) {
910	my $msg = $@ ? "$path: $@\n"
911	: "extension disabled.\n";
912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
913	warn $@;
914	warn "mandatory extension failed to load, exiting.\n";
915	exit 1;
916	}
917	die $@;
918	}
919
920	push @EXTS, $pkg;
921	}
922
923	sub load_extensions {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
924	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1112	next unless -r $path;
926	eval {	1113
927	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;
928	1	1171	}
929	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
930	}	1177	};
931	}	1178	}
932		1179
933	#############################################################################	1180	#############################################################################
934		1181
		1182	=back
		1183
935	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
936		1185
937	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
938		1187
939	=cut	1188	=cut
…		…
951	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
952		1201
953	=cut	1202	=cut
954		1203
955	sub playerdir($) {	1204	sub playerdir($) {
956	cf::localdir	1205	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1207	}
962		1208
963	sub path($) {	1209	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
965		1211
966	(playerdir $login) . "/$login.pl"	1212	(playerdir $login) . "/playerdata"
967	}	1213	}
968		1214
969	sub find_active($) {	1215	sub find_active($) {
970	$cf::PLAYER{$_[0]}	1216	$cf::PLAYER{$_[0]}
971	and $cf::PLAYER{$_[0]}->active	1217	and $cf::PLAYER{$_[0]}->active
…		…
984	my $login = $_[0];	1230	my $login = $_[0];
985		1231
986	my $guard = cf::lock_acquire "user_find:$login";	1232	my $guard = cf::lock_acquire "user_find:$login";
987		1233
988	$cf::PLAYER{$_[0]} || do {	1234	$cf::PLAYER{$_[0]} || do {
		1235	# rename old playerfiles to new ones
		1236	#TODO: remove when no longer required
		1237	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1238	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1239	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1240	aio_unlink +(playerdir $login) . "/$login.pl";
		1241
989	my $pl = load_pl path $login	1242	my $pl = load_pl path $login
990	or return;	1243	or return;
991	$cf::PLAYER{$login} = $pl	1244	$cf::PLAYER{$login} = $pl
992	}	1245	}
993	}	1246	}
…		…
1077	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1078		1331
1079	=cut	1332	=cut
1080		1333
1081	sub list_logins {	1334	sub list_logins {
1082	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1083	or return [];	1336	or return [];
1084		1337
1085	my @logins;	1338	my @logins;
1086		1339
1087	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1122	}	1375	}
1123		1376
1124	\@paths	1377	\@paths
1125	}	1378	}
1126		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	warn "hm<$_[0] $_[1]>\n";#d#
		1424	$_[0]{hintmode} = $_[1] if @_ > 1;
		1425	$_[0]{hintmode}
		1426	}
		1427
1127	=item $player->ext_reply ($msgid, $msgtype, %msg)	1428	=item $player->ext_reply ($msgid, %msg)
1128		1429
1129	Sends an ext reply to the player.	1430	Sends an ext reply to the player.
1130		1431
1131	=cut	1432	=cut
1132		1433
1133	sub ext_reply($$$%) {	1434	sub ext_reply($$%) {
1134	my ($self, $id, %msg) = @_;	1435	my ($self, $id, %msg) = @_;
1135		1436
1136	$msg{msgid} = $id;	1437	$msg{msgid} = $id;
1137		1438	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1138	$self->send ("ext " . cf::to_json \%msg);
1139	}	1439	}
1140		1440
1141	package cf;	1441	=item $player->ext_event ($type, %msg)
		1442
		1443	Sends an ext event to the client.
		1444
		1445	=cut
		1446
		1447	sub ext_event($$%) {
		1448	my ($self, $type, %msg) = @_;
		1449
		1450	$self->ns->ext_event ($type, %msg);
		1451	}
		1452
		1453	=head3 cf::region
		1454
		1455	=over 4
		1456
		1457	=cut
		1458
		1459	package cf::region;
		1460
		1461	=item cf::region::find_by_path $path
		1462
		1463	Tries to decuce the likely region for a map knowing only its path.
		1464
		1465	=cut
		1466
		1467	sub find_by_path($) {
		1468	my ($path) = @_;
		1469
		1470	my ($match, $specificity);
		1471
		1472	for my $region (list) {
		1473	if ($region->match && $path =~ $region->match) {
		1474	($match, $specificity) = ($region, $region->specificity)
		1475	if $region->specificity > $specificity;
		1476	}
		1477	}
		1478
		1479	$match
		1480	}
1142		1481
1143	=back	1482	=back
1144
1145		1483
1146	=head3 cf::map	1484	=head3 cf::map
1147		1485
1148	=over 4	1486	=over 4
1149		1487
…		…
1204	my ($self, $merge) = @_;	1542	my ($self, $merge) = @_;
1205		1543
1206	# we have to keep some variables in memory intact	1544	# we have to keep some variables in memory intact
1207	local $self->{path};	1545	local $self->{path};
1208	local $self->{load_path};	1546	local $self->{load_path};
1209	local $self->{deny_save};
1210	local $self->{deny_reset};
1211		1547
1212	$self->SUPER::thawer_merge ($merge);	1548	$self->SUPER::thawer_merge ($merge);
1213	}	1549	}
1214		1550
1215	sub normalise {	1551	sub normalise {
…		…
1287		1623
1288	# the original (read-only) location	1624	# the original (read-only) location
1289	sub load_path {	1625	sub load_path {
1290	my ($self) = @_;	1626	my ($self) = @_;
1291		1627
1292	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1628	"$MAPDIR/$self->{path}.map"
1293	}	1629	}
1294		1630
1295	# the temporary/swap location	1631	# the temporary/swap location
1296	sub save_path {	1632	sub save_path {
1297	my ($self) = @_;	1633	my ($self) = @_;
1298		1634
1299	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1635	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1300	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1636	"$TMPDIR/$path.map"
1301	}	1637	}
1302		1638
1303	# the unique path, undef == no special unique path	1639	# the unique path, undef == no special unique path
1304	sub uniq_path {	1640	sub uniq_path {
1305	my ($self) = @_;	1641	my ($self) = @_;
1306		1642
1307	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1643	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1308	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1644	"$UNIQUEDIR/$path"
1309	}	1645	}
1310		1646
1311	# and all this just because we cannot iterate over	1647	# and all this just because we cannot iterate over
1312	# all maps in C++...	1648	# all maps in C++...
1313	sub change_all_map_light {	1649	sub change_all_map_light {
1314	my ($change) = @_;	1650	my ($change) = @_;
1315		1651
1316	$_->change_map_light ($change)	1652	$_->change_map_light ($change)
1317	for grep $_->outdoor, values %cf::MAP;	1653	for grep $_->outdoor, values %cf::MAP;
		1654	}
		1655
		1656	sub decay_objects {
		1657	my ($self) = @_;
		1658
		1659	return if $self->{deny_reset};
		1660
		1661	$self->do_decay_objects;
1318	}	1662	}
1319		1663
1320	sub unlink_save {	1664	sub unlink_save {
1321	my ($self) = @_;	1665	my ($self) = @_;
1322		1666
…		…
1380	$self->load_header_orig	1724	$self->load_header_orig
1381	or return;	1725	or return;
1382	$self->prepare_orig;	1726	$self->prepare_orig;
1383	}	1727	}
1384		1728
		1729	$self->{deny_reset} = 1
		1730	if $self->no_reset;
		1731
		1732	$self->default_region (cf::region::find_by_path $self->{path})
		1733	unless $self->default_region;
		1734
1385	1	1735	1
1386	}	1736	}
1387		1737
1388	sub find;	1738	sub find;
1389	sub find {	1739	sub find {
…		…
1401	$map->{last_save} = $cf::RUNTIME;	1751	$map->{last_save} = $cf::RUNTIME;
1402		1752
1403	$map->load_header	1753	$map->load_header
1404	or return;	1754	or return;
1405		1755
1406	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1756	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1407	# doing this can freeze the server in a sync job, obviously	1757	# doing this can freeze the server in a sync job, obviously
1408	#$cf::WAIT_FOR_TICK->wait;	1758	#$cf::WAIT_FOR_TICK->wait;
1409	$map->reset;	1759	$map->reset;
1410	undef $guard;	1760	undef $guard;
1411	return find $path;	1761	return find $path;
…		…
1422	my ($self) = @_;	1772	my ($self) = @_;
1423		1773
1424	local $self->{deny_reset} = 1; # loading can take a long time	1774	local $self->{deny_reset} = 1; # loading can take a long time
1425		1775
1426	my $path = $self->{path};	1776	my $path = $self->{path};
		1777
		1778	{
1427	my $guard = cf::lock_acquire "map_load:$path";	1779	my $guard = cf::lock_acquire "map_load:$path";
1428		1780
1429	return if $self->in_memory != cf::MAP_SWAPPED;	1781	return if $self->in_memory != cf::MAP_SWAPPED;
1430		1782
1431	$self->in_memory (cf::MAP_LOADING);	1783	$self->in_memory (cf::MAP_LOADING);
1432		1784
1433	$self->alloc;	1785	$self->alloc;
1434		1786
1435	$self->pre_load;	1787	$self->pre_load;
1436
1437	$self->_load_objects ($self->{load_path}, 1)
1438	or return;
1439
1440	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1441	if delete $self->{load_original};
1442
1443	if (my $uniq = $self->uniq_path) {
1444	utf8::encode $uniq;
1445	if (aio_open $uniq, O_RDONLY, 0) {
1446	$self->clear_unique_items;
1447	$self->_load_objects ($uniq, 0);
1448	}
1449	}
1450
1451	Coro::cede;
1452
1453	# now do the right thing for maps
1454	$self->link_multipart_objects;
1455
1456	unless ($self->{deny_activate}) {
1457	$self->decay_objects;
1458	$self->fix_auto_apply;
1459	$self->update_buttons;
1460	Coro::cede;	1788	Coro::cede;
1461	$self->set_darkness_map;	1789
		1790	$self->_load_objects ($self->{load_path}, 1)
		1791	or return;
		1792
		1793	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1794	if delete $self->{load_original};
		1795
		1796	if (my $uniq = $self->uniq_path) {
		1797	utf8::encode $uniq;
		1798	if (aio_open $uniq, O_RDONLY, 0) {
		1799	$self->clear_unique_items;
		1800	$self->_load_objects ($uniq, 0);
		1801	}
		1802	}
		1803
		1804	Coro::cede;
		1805	# now do the right thing for maps
		1806	$self->link_multipart_objects;
1462	$self->difficulty ($self->estimate_difficulty)	1807	$self->difficulty ($self->estimate_difficulty)
1463	unless $self->difficulty;	1808	unless $self->difficulty;
1464	Coro::cede;	1809	Coro::cede;
		1810
		1811	unless ($self->{deny_activate}) {
		1812	$self->decay_objects;
		1813	$self->fix_auto_apply;
		1814	$self->update_buttons;
		1815	Coro::cede;
		1816	$self->set_darkness_map;
		1817	Coro::cede;
1465	$self->activate;	1818	$self->activate;
		1819	}
		1820
		1821	$self->in_memory (cf::MAP_IN_MEMORY);
1466	}	1822	}
1467		1823
1468	$self->post_load;	1824	$self->post_load;
1469
1470	$self->in_memory (cf::MAP_IN_MEMORY);
1471	}	1825	}
1472		1826
1473	sub customise_for {	1827	sub customise_for {
1474	my ($self, $ob) = @_;	1828	my ($self, $ob) = @_;
1475		1829
1476	return find "~" . $ob->name . "/" . $self->{path}	1830	return find "~" . $ob->name . "/" . $self->{path}
1477	if $self->per_player;	1831	if $self->per_player;
		1832
		1833	# return find "?party/" . $ob->name . "/" . $self->{path}
		1834	# if $self->per_party;
1478		1835
1479	$self	1836	$self
1480	}	1837	}
1481		1838
1482	# find and load all maps in the 3x3 area around a map	1839	# find and load all maps in the 3x3 area around a map
…		…
1593		1950
1594	sub reset_at {	1951	sub reset_at {
1595	my ($self) = @_;	1952	my ($self) = @_;
1596		1953
1597	# TODO: safety, remove and allow resettable per-player maps	1954	# TODO: safety, remove and allow resettable per-player maps
1598	return 1e99 if $self->isa ("ext::map_per_player");#d#
1599	return 1e99 if $self->{deny_reset};	1955	return 1e99 if $self->{deny_reset};
1600		1956
1601	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1957	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1602	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1958	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1603		1959
…		…
1614	my ($self) = @_;	1970	my ($self) = @_;
1615		1971
1616	my $lock = cf::lock_acquire "map_data:$self->{path}";	1972	my $lock = cf::lock_acquire "map_data:$self->{path}";
1617		1973
1618	return if $self->players;	1974	return if $self->players;
1619	return if $self->isa ("ext::map_per_player");#d#
1620		1975
1621	warn "resetting map ", $self->path;#d#	1976	warn "resetting map ", $self->path;
1622		1977
1623	$self->in_memory (cf::MAP_SWAPPED);	1978	$self->in_memory (cf::MAP_SWAPPED);
1624		1979
1625	# need to save uniques path	1980	# need to save uniques path
1626	unless ($self->{deny_save}) {	1981	unless ($self->{deny_save}) {
…		…
1658	$cf::MAP{$self->path} = $self;	2013	$cf::MAP{$self->path} = $self;
1659		2014
1660	$self->reset; # polite request, might not happen	2015	$self->reset; # polite request, might not happen
1661	}	2016	}
1662		2017
		2018	=item $maps = cf::map::tmp_maps
		2019
		2020	Returns an arrayref with all map paths of currently instantiated and saved
		2021	maps. May block.
		2022
		2023	=cut
		2024
		2025	sub tmp_maps() {
		2026	[
		2027	map {
		2028	utf8::decode $_;
		2029	/\.map$/
		2030	? normalise $_
		2031	: ()
		2032	} @{ aio_readdir $TMPDIR or [] }
		2033	]
		2034	}
		2035
		2036	=item $maps = cf::map::random_maps
		2037
		2038	Returns an arrayref with all map paths of currently instantiated and saved
		2039	random maps. May block.
		2040
		2041	=cut
		2042
		2043	sub random_maps() {
		2044	[
		2045	map {
		2046	utf8::decode $_;
		2047	/\.map$/
		2048	? normalise "?random/$_"
		2049	: ()
		2050	} @{ aio_readdir $RANDOMDIR or [] }
		2051	]
		2052	}
		2053
1663	=item cf::map::unique_maps	2054	=item cf::map::unique_maps
1664		2055
1665	Returns an arrayref of paths of all shared maps that have	2056	Returns an arrayref of paths of all shared maps that have
1666	instantiated unique items. May block.	2057	instantiated unique items. May block.
1667		2058
1668	=cut	2059	=cut
1669		2060
1670	sub unique_maps() {	2061	sub unique_maps() {
1671	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2062	[
1672	or return;	2063	map {
1673
1674	my @paths;
1675
1676	for (@$files) {
1677	utf8::decode $_;	2064	utf8::decode $_;
1678	next if /\.pst$/;	2065	/\.map$/
1679	next unless /^$PATH_SEP/o;	2066	? normalise $_
1680		2067	: ()
1681	push @paths, cf::map::normalise $_;	2068	} @{ aio_readdir $UNIQUEDIR or [] }
1682	}	2069	]
1683
1684	\@paths
1685	}	2070	}
1686		2071
1687	package cf;	2072	package cf;
1688		2073
1689	=back	2074	=back
…		…
1735		2120
1736	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2121	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1737		2122
1738	if ($self->{record_replies}) {	2123	if ($self->{record_replies}) {
1739	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2124	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2125
1740	} else {	2126	} else {
		2127	my $pl = $self->contr;
		2128
		2129	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2130	my $diag = $pl->{npc_dialog};
		2131	$diag->{pl}->ext_reply (
		2132	$diag->{id},
		2133	msgtype => "reply",
		2134	msg => $diag->{pl}->expand_cfpod ($msg),
		2135	add_topics => []
		2136	);
		2137
		2138	} else {
1741	$msg = $npc->name . " says: $msg" if $npc;	2139	$msg = $npc->name . " says: $msg" if $npc;
1742	$self->message ($msg, $flags);	2140	$self->message ($msg, $flags);
		2141	}
1743	}	2142	}
1744	}	2143	}
1745		2144
1746	=item $player_object->may ("access")	2145	=item $player_object->may ("access")
1747		2146
…		…
1795	$self->deactivate_recursive;	2194	$self->deactivate_recursive;
1796		2195
1797	return if UNIVERSAL::isa $self->map, "ext::map_link";	2196	return if UNIVERSAL::isa $self->map, "ext::map_link";
1798		2197
1799	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2198	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1800	if $self->map;	2199	if $self->map && $self->map->{path} ne "{link}";
1801		2200
1802	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2201	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1803	}	2202	}
1804		2203
1805	sub cf::object::player::leave_link {	2204	sub cf::object::player::leave_link {
1806	my ($self, $map, $x, $y) = @_;	2205	my ($self, $map, $x, $y) = @_;
		2206
		2207	return unless $self->contr->active;
1807		2208
1808	my $link_pos = delete $self->{_link_pos};	2209	my $link_pos = delete $self->{_link_pos};
1809		2210
1810	unless ($map) {	2211	unless ($map) {
1811	# restore original map position	2212	# restore original map position
…		…
1834		2235
1835	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2236	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1836	$self->enter_map ($map, $x, $y);	2237	$self->enter_map ($map, $x, $y);
1837	}	2238	}
1838		2239
1839	cf::player->attach (
1840	on_logout => sub {
1841	my ($pl) = @_;
1842
1843	# abort map switching before logout
1844	if ($pl->ob->{_link_pos}) {
1845	cf::sync_job {
1846	$pl->ob->leave_link
1847	};
1848	}
1849	},
1850	on_login => sub {
1851	my ($pl) = @_;
1852
1853	# try to abort aborted map switching on player login :)
1854	# should happen only on crashes
1855	if ($pl->ob->{_link_pos}) {
1856	$pl->ob->enter_link;
1857	(async {
1858	$pl->ob->reply (undef,
1859	"There was an internal problem at your last logout, "
1860	. "the server will try to bring you to your intended destination in a second.",
1861	cf::NDI_RED);
1862	# we need this sleep as the login has a concurrent enter_exit running
1863	# and this sleep increases chances of the player not ending up in scorn
1864	Coro::Timer::sleep 1;
1865	$pl->ob->leave_link;
1866	})->prio (2);
1867	}
1868	},
1869	);
1870
1871	=item $player_object->goto ($path, $x, $y)	2240	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1872		2241
		2242	Moves the player to the given map-path and coordinates by first freezing
		2243	her, loading and preparing them map, calling the provided $check callback
		2244	that has to return the map if sucecssful, and then unfreezes the player on
		2245	the new (success) or old (failed) map position.
		2246
1873	=cut	2247	=cut
		2248
		2249	our $GOTOGEN;
1874		2250
1875	sub cf::object::player::goto {	2251	sub cf::object::player::goto {
1876	my ($self, $path, $x, $y) = @_;	2252	my ($self, $path, $x, $y, $check) = @_;
		2253
		2254	# do generation counting so two concurrent goto's will be executed in-order
		2255	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1877		2256
1878	$self->enter_link;	2257	$self->enter_link;
1879		2258
1880	(async {	2259	(async {
1881	my $map = eval {	2260	my $map = eval {
1882	my $map = cf::map::find $path;	2261	my $map = cf::map::find $path;
		2262
		2263	if ($map) {
1883	$map = $map->customise_for ($self) if $map;	2264	$map = $map->customise_for ($self);
		2265	$map = $check->($map) if $check && $map;
		2266	} else {
		2267	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2268	}
		2269
1884	$map	2270	$map
		2271	};
		2272
		2273	if ($@) {
		2274	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2275	LOG llevError | logBacktrace, Carp::longmess $@;
1885	} or	2276	}
1886	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1887		2277
		2278	if ($gen == $self->{_goto_generation}) {
		2279	delete $self->{_goto_generation};
1888	$self->leave_link ($map, $x, $y);	2280	$self->leave_link ($map, $x, $y);
		2281	}
1889	})->prio (1);	2282	})->prio (1);
1890	}	2283	}
1891		2284
1892	=item $player_object->enter_exit ($exit_object)	2285	=item $player_object->enter_exit ($exit_object)
1893		2286
…		…
1932		2325
1933	$rmp->{random_seed} ||= $exit->random_seed;	2326	$rmp->{random_seed} ||= $exit->random_seed;
1934		2327
1935	my $data = cf::to_json $rmp;	2328	my $data = cf::to_json $rmp;
1936	my $md5 = Digest::MD5::md5_hex $data;	2329	my $md5 = Digest::MD5::md5_hex $data;
1937	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2330	my $meta = "$RANDOMDIR/$md5.meta";
1938		2331
1939	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2332	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1940	aio_write $fh, 0, (length $data), $data, 0;	2333	aio_write $fh, 0, (length $data), $data, 0;
1941	undef $fh;	2334	undef $fh;
1942	aio_rename "$meta~", $meta;	2335	aio_rename "$meta~", $meta;
…		…
1951		2344
1952	return unless $self->type == cf::PLAYER;	2345	return unless $self->type == cf::PLAYER;
1953		2346
1954	if ($exit->slaying eq "/!") {	2347	if ($exit->slaying eq "/!") {
1955	#TODO: this should de-fi-ni-te-ly not be a sync-job	2348	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2349	# the problem is that $exit might not survive long enough
		2350	# so it needs to be done right now, right here
1956	cf::sync_job { prepare_random_map $exit };	2351	cf::sync_job { prepare_random_map $exit };
1957	}	2352	}
1958		2353
1959	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2354	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1960	my $hp = $exit->stats->hp;	2355	my $hp = $exit->stats->hp;
…		…
1968	$self->goto ($slaying, $hp, $sp);	2363	$self->goto ($slaying, $hp, $sp);
1969		2364
1970	1;	2365	1;
1971	}) {	2366	}) {
1972	$self->message ("Something went wrong deep within the crossfire server. "	2367	$self->message ("Something went wrong deep within the crossfire server. "
1973	. "I'll try to bring you back to the map you were before. "	2368	. "I'll try to bring you back to the map you were before. "
1974	. "Please report this to the dungeon master!",	2369	. "Please report this to the dungeon master!",
1975	cf::NDI_UNIQUE | cf::NDI_RED);	2370	cf::NDI_UNIQUE | cf::NDI_RED);
1976		2371
1977	warn "ERROR in enter_exit: $@";	2372	warn "ERROR in enter_exit: $@";
1978	$self->leave_link;	2373	$self->leave_link;
1979	}	2374	}
1980	})->prio (1);	2375	})->prio (1);
…		…
1993		2388
1994	sub cf::client::send_drawinfo {	2389	sub cf::client::send_drawinfo {
1995	my ($self, $text, $flags) = @_;	2390	my ($self, $text, $flags) = @_;
1996		2391
1997	utf8::encode $text;	2392	utf8::encode $text;
1998	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2393	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1999	}	2394	}
2000		2395
		2396	=item $client->send_msg ($color, $type, $msg, [extra...])
		2397
		2398	Send a drawinfo or msg packet to the client, formatting the msg for the
		2399	client if neccessary. C<$type> should be a string identifying the type of
		2400	the message, with C<log> being the default. If C<$color> is negative, suppress
		2401	the message unless the client supports the msg packet.
		2402
		2403	=cut
		2404
		2405	sub cf::client::send_msg {
		2406	my ($self, $color, $type, $msg, @extra) = @_;
		2407
		2408	$msg = $self->pl->expand_cfpod ($msg);
		2409
		2410	if ($self->can_msg) {
		2411	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2412	} else {
		2413	# replace some tags by gcfclient-compatible ones
		2414	for ($msg) {
		2415	1 while
		2416	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2417	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2418	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2419	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2420	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2421	}
		2422
		2423	if ($color >= 0) {
		2424	if (0 && $msg =~ /\[/) {
		2425	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2426	} else {
		2427	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2428	$self->send_packet ("drawinfo $color $msg")
		2429	}
		2430	}
		2431	}
		2432	}
		2433
		2434	=item $client->ext_event ($type, %msg)
		2435
		2436	Sends an ext event to the client.
		2437
		2438	=cut
		2439
		2440	sub cf::client::ext_event($$%) {
		2441	my ($self, $type, %msg) = @_;
		2442
		2443	$msg{msgtype} = "event_$type";
		2444	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2445	}
2001		2446
2002	=item $success = $client->query ($flags, "text", \&cb)	2447	=item $success = $client->query ($flags, "text", \&cb)
2003		2448
2004	Queues a query to the client, calling the given callback with	2449	Queues a query to the client, calling the given callback with
2005	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2450	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2006	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2451	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2007		2452
2008	Queries can fail, so check the return code. Or don't, as queries will become	2453	Queries can fail, so check the return code. Or don't, as queries will
2009	reliable at some point in the future.	2454	become reliable at some point in the future.
2010		2455
2011	=cut	2456	=cut
2012		2457
2013	sub cf::client::query {	2458	sub cf::client::query {
2014	my ($self, $flags, $text, $cb) = @_;	2459	my ($self, $flags, $text, $cb) = @_;
…		…
2022	utf8::encode $text;	2467	utf8::encode $text;
2023	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2468	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2024		2469
2025	$self->send_packet ($self->{query_queue}[0][0])	2470	$self->send_packet ($self->{query_queue}[0][0])
2026	if @{ $self->{query_queue} } == 1;	2471	if @{ $self->{query_queue} } == 1;
		2472
		2473	1
2027	}	2474	}
2028		2475
2029	cf::client->attach (	2476	cf::client->attach (
		2477	on_connect => sub {
		2478	my ($ns) = @_;
		2479
		2480	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2481	},
2030	on_reply => sub {	2482	on_reply => sub {
2031	my ($ns, $msg) = @_;	2483	my ($ns, $msg) = @_;
2032		2484
2033	# this weird shuffling is so that direct followup queries	2485	# this weird shuffling is so that direct followup queries
2034	# get handled first	2486	# get handled first
…		…
2046	} else {	2498	} else {
2047	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2499	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2048	}	2500	}
2049	}	2501	}
2050	},	2502	},
		2503	on_exticmd => sub {
		2504	my ($ns, $buf) = @_;
		2505
		2506	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2507
		2508	if (ref $msg) {
		2509	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2510	if (my %reply = $cb->($ns, $msg)) {
		2511	$reply{msgid} = $msg->{msgid};
		2512	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2513	}
		2514	}
		2515	} else {
		2516	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2517	}
		2518
		2519	cf::override;
		2520	},
2051	);	2521	);
2052		2522
2053	=item $client->async (\&cb)	2523	=item $client->async (\&cb)
2054		2524
2055	Create a new coroutine, running the specified callback. The coroutine will	2525	Create a new coroutine, running the specified callback. The coroutine will
…		…
2102		2572
2103	# here we export the classes and methods available to script code	2573	# here we export the classes and methods available to script code
2104		2574
2105	=pod	2575	=pod
2106		2576
2107	The following fucntions and emthods are available within a safe environment:	2577	The following functions and methods are available within a safe environment:
2108		2578
2109	cf::object contr pay_amount pay_player map	2579	cf::object contr pay_amount pay_player map
2110	cf::object::player player	2580	cf::object::player player
2111	cf::player peaceful	2581	cf::player peaceful
2112	cf::map trigger	2582	cf::map trigger
…		…
2193	=back	2663	=back
2194		2664
2195	=cut	2665	=cut
2196		2666
2197	#############################################################################	2667	#############################################################################
2198
2199	=head2 EXTENSION DATABASE SUPPORT
2200
2201	Crossfire maintains a very simple database for extension use. It can
2202	currently store anything that can be serialised using Storable, which
2203	excludes objects.
2204
2205	The parameter C<$family> should best start with the name of the extension
2206	using it, it should be unique.
2207
2208	=over 4
2209
2210	=item $value = cf::db_get $family => $key
2211
2212	Returns a single value from the database.
2213
2214	=item cf::db_put $family => $key => $value
2215
2216	Stores the given C<$value> in the family.
2217
2218	=cut
2219
2220	our $DB;
2221
2222	sub db_init {
2223	unless ($DB) {
2224	$DB = BDB::db_create $DB_ENV;
2225
2226	cf::sync_job {
2227	eval {
2228	$DB->set_flags (BDB::CHKSUM);
2229
2230	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2231	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2232	cf::cleanup "db_open(db): $!" if $!;
2233	};
2234	cf::cleanup "db_open(db): $@" if $@;
2235	};
2236
2237	my $path = cf::localdir . "/database.pst";
2238	if (stat $path) {
2239	cf::sync_job {
2240	my $pst = Storable::retrieve $path;
2241
2242	cf::db_put (board => data => $pst->{board});
2243	cf::db_put (guildrules => data => $pst->{guildrules});
2244	cf::db_put (rent => balance => $pst->{rent}{balance});
2245	BDB::db_env_txn_checkpoint $DB_ENV;
2246
2247	unlink $path;
2248	};
2249	}
2250	}
2251	}
2252
2253	sub db_get($$) {
2254	my $key = "$_[0]/$_[1]";
2255
2256	cf::sync_job {
2257	BDB::db_get $DB, undef, $key, my $data;
2258
2259	$! ? ()
2260	: Compress::LZF::sthaw $data
2261	}
2262	}
2263
2264	sub db_put($$$) {
2265	BDB::dbreq_pri 4;
2266	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2267	}
2268
2269	#############################################################################
2270	# the server's init and main functions	2668	# the server's init and main functions
2271		2669
2272	sub load_faces {	2670	sub load_facedata($) {
2273	my $path = sprintf "%s/faces", cf::datadir;	2671	my ($path) = @_;
2274		2672
2275	warn "loading faces from $path\n";	2673	warn "loading facedata from $path\n";
2276		2674
2277	my $faces;	2675	my $facedata;
2278	0 < aio_load $path, $faces	2676	0 < aio_load $path, $facedata
2279	or die "$path: $!";	2677	or die "$path: $!";
2280		2678
2281	Coro::cede;
2282	$faces = Storable::thaw $faces;	2679	$facedata = Coro::Storable::thaw $facedata;
2283	Coro::cede;
2284		2680
		2681	$facedata->{version} == 2
		2682	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2683
		2684	{
		2685	my $faces = $facedata->{faceinfo};
		2686
2285	while (my ($face, $info) = each %$faces) {	2687	while (my ($face, $info) = each %$faces) {
2286	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2688	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2287	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2689	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2288	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2690	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2691	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2289	Coro::cede;	2692	Coro::cede;
		2693	}
		2694
		2695	while (my ($face, $info) = each %$faces) {
		2696	next unless $info->{smooth};
		2697	my $idx = cf::face::find $face
		2698	or next;
		2699	if (my $smooth = cf::face::find $info->{smooth}) {
		2700	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2701	} else {
		2702	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2703	}
		2704	Coro::cede;
		2705	}
		2706	}
		2707
		2708	{
		2709	my $anims = $facedata->{animinfo};
		2710
		2711	while (my ($anim, $info) = each %$anims) {
		2712	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2713	Coro::cede;
		2714	}
		2715
		2716	cf::anim::invalidate_all; # d'oh
2290	}	2717	}
2291		2718
2292	1	2719	1
2293	}	2720	}
2294		2721
		2722	sub reload_regions {
		2723	load_resource_file "$MAPDIR/regions"
		2724	or die "unable to load regions file\n";
		2725	}
		2726
		2727	sub reload_facedata {
		2728	load_facedata "$DATADIR/facedata"
		2729	or die "unable to load facedata\n";
		2730	}
		2731
		2732	sub reload_archetypes {
		2733	load_resource_file "$DATADIR/archetypes"
		2734	or die "unable to load archetypes\n";
		2735	#d# NEED to laod twice to resolve forward references
		2736	# this really needs to be done in an extra post-pass
		2737	# (which needs to be synchronous, so solve it differently)
		2738	load_resource_file "$DATADIR/archetypes"
		2739	or die "unable to load archetypes\n";
		2740	}
		2741
		2742	sub reload_treasures {
		2743	load_resource_file "$DATADIR/treasures"
		2744	or die "unable to load treasurelists\n";
		2745	}
		2746
2295	sub reload_resources {	2747	sub reload_resources {
2296	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2748	warn "reloading resource files...\n";
2297	or die "unable to load regions file\n";#d#	2749
		2750	reload_regions;
2298	load_faces	2751	reload_facedata;
2299	or die "unable to load faces\n";#d#	2752	#reload_archetypes;#d#
		2753	reload_archetypes;
		2754	reload_treasures;
		2755
		2756	warn "finished reloading resource files\n";
2300	}	2757	}
2301		2758
2302	sub init {	2759	sub init {
2303	reload_resources;	2760	reload_resources;
2304	}	2761	}
2305		2762
2306	sub cfg_load {	2763	sub cfg_load {
2307	open my $fh, "<:utf8", cf::confdir . "/config"	2764	open my $fh, "<:utf8", "$CONFDIR/config"
2308	or return;	2765	or return;
2309		2766
2310	local $/;	2767	local $/;
2311	*CFG = YAML::Syck::Load <$fh>;	2768	*CFG = YAML::Syck::Load <$fh>;
2312		2769
…		…
2357	},	2814	},
2358	);	2815	);
2359	}	2816	}
2360	}	2817	}
2361		2818
		2819	sub write_runtime {
		2820	my $runtime = "$LOCALDIR/runtime";
		2821
		2822	# first touch the runtime file to show we are still running:
		2823	# the fsync below can take a very very long time.
		2824
		2825	IO::AIO::aio_utime $runtime, undef, undef;
		2826
		2827	my $guard = cf::lock_acquire "write_runtime";
		2828
		2829	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2830	or return;
		2831
		2832	my $value = $cf::RUNTIME + 90 + 10;
		2833	# 10 is the runtime save interval, for a monotonic clock
		2834	# 60 allows for the watchdog to kill the server.
		2835
		2836	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2837	and return;
		2838
		2839	# always fsync - this file is important
		2840	aio_fsync $fh
		2841	and return;
		2842
		2843	# touch it again to show we are up-to-date
		2844	aio_utime $fh, undef, undef;
		2845
		2846	close $fh
		2847	or return;
		2848
		2849	aio_rename "$runtime~", $runtime
		2850	and return;
		2851
		2852	warn "runtime file written.\n";
		2853
		2854	1
		2855	}
		2856
2362	sub emergency_save() {	2857	sub emergency_save() {
2363	my $freeze_guard = cf::freeze_mainloop;	2858	my $freeze_guard = cf::freeze_mainloop;
2364		2859
2365	warn "enter emergency perl save\n";	2860	warn "enter emergency perl save\n";
2366		2861
…		…
2397		2892
2398	warn Carp::longmess "post_cleanup backtrace"	2893	warn Carp::longmess "post_cleanup backtrace"
2399	if $make_core;	2894	if $make_core;
2400	}	2895	}
2401		2896
2402	sub reload() {	2897	sub do_reload_perl() {
2403	# can/must only be called in main	2898	# can/must only be called in main
2404	if ($Coro::current != $Coro::main) {	2899	if ($Coro::current != $Coro::main) {
2405	warn "can only reload from main coroutine";	2900	warn "can only reload from main coroutine";
2406	return;	2901	return;
2407	}	2902	}
…		…
2441	%EXT_CORO = ();	2936	%EXT_CORO = ();
2442		2937
2443	warn "removing commands";	2938	warn "removing commands";
2444	%COMMAND = ();	2939	%COMMAND = ();
2445		2940
2446	warn "removing ext commands";	2941	warn "removing ext/exti commands";
2447	%EXTCMD = ();	2942	%EXTCMD = ();
		2943	%EXTICMD = ();
2448		2944
2449	warn "unloading/nuking all extensions";	2945	warn "unloading/nuking all extensions";
2450	for my $pkg (@EXTS) {	2946	for my $pkg (@EXTS) {
2451	warn "... unloading $pkg";	2947	warn "... unloading $pkg";
2452		2948
…		…
2482	Symbol::delete_package "safe::$_"	2978	Symbol::delete_package "safe::$_"
2483	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2979	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2484		2980
2485	warn "unloading cf.pm \"a bit\"";	2981	warn "unloading cf.pm \"a bit\"";
2486	delete $INC{"cf.pm"};	2982	delete $INC{"cf.pm"};
		2983	delete $INC{"cf/pod.pm"};
2487		2984
2488	# don't, removes xs symbols, too,	2985	# don't, removes xs symbols, too,
2489	# and global variables created in xs	2986	# and global variables created in xs
2490	#Symbol::delete_package __PACKAGE__;	2987	#Symbol::delete_package __PACKAGE__;
2491		2988
…		…
2506	warn "reattaching attachments to maps";	3003	warn "reattaching attachments to maps";
2507	reattach $_ for values %MAP;	3004	reattach $_ for values %MAP;
2508	warn "reattaching attachments to players";	3005	warn "reattaching attachments to players";
2509	reattach $_ for values %PLAYER;	3006	reattach $_ for values %PLAYER;
2510		3007
2511	warn "loading reloadable resources";
2512	reload_resources;
2513
2514	warn "leaving sync_job";	3008	warn "leaving sync_job";
2515		3009
2516	1	3010	1
2517	} or do {	3011	} or do {
2518	warn $@;	3012	warn $@;
…		…
2523	warn "reloaded";	3017	warn "reloaded";
2524	};	3018	};
2525		3019
2526	our $RELOAD_WATCHER; # used only during reload	3020	our $RELOAD_WATCHER; # used only during reload
2527		3021
		3022	sub reload_perl() {
		3023	# doing reload synchronously and two reloads happen back-to-back,
		3024	# coro crashes during coro_state_free->destroy here.
		3025
		3026	$RELOAD_WATCHER ||= Event->timer (
		3027	reentrant => 0,
		3028	after => 0,
		3029	data => WF_AUTOCANCEL,
		3030	cb => sub {
		3031	do_reload_perl;
		3032	undef $RELOAD_WATCHER;
		3033	},
		3034	);
		3035	}
		3036
2528	register_command "reload" => sub {	3037	register_command "reload" => sub {
2529	my ($who, $arg) = @_;	3038	my ($who, $arg) = @_;
2530		3039
2531	if ($who->flag (FLAG_WIZ)) {	3040	if ($who->flag (FLAG_WIZ)) {
2532	$who->message ("reloading server.");	3041	$who->message ("reloading server.");
2533		3042	async { reload_perl };
2534	# doing reload synchronously and two reloads happen back-to-back,
2535	# coro crashes during coro_state_free->destroy here.
2536
2537	$RELOAD_WATCHER ||= Event->timer (
2538	reentrant => 0,
2539	after => 0,
2540	data => WF_AUTOCANCEL,
2541	cb => sub {
2542	reload;
2543	undef $RELOAD_WATCHER;
2544	},
2545	);
2546	}	3043	}
2547	};	3044	};
2548		3045
2549	unshift @INC, $LIBDIR;	3046	unshift @INC, $LIBDIR;
2550		3047
2551	my $bug_warning = 0;	3048	my $bug_warning = 0;
2552		3049
		3050	our @WAIT_FOR_TICK;
		3051	our @WAIT_FOR_TICK_BEGIN;
		3052
		3053	sub wait_for_tick {
		3054	return unless $TICK_WATCHER->is_active;
		3055	return if $Coro::current == $Coro::main;
		3056
		3057	my $signal = new Coro::Signal;
		3058	push @WAIT_FOR_TICK, $signal;
		3059	$signal->wait;
		3060	}
		3061
		3062	sub wait_for_tick_begin {
		3063	return unless $TICK_WATCHER->is_active;
		3064	return if $Coro::current == $Coro::main;
		3065
		3066	my $signal = new Coro::Signal;
		3067	push @WAIT_FOR_TICK_BEGIN, $signal;
		3068	$signal->wait;
		3069	}
		3070
		3071	my $min = 1e6;#d#
		3072	my $avg = 10;
2553	$TICK_WATCHER = Event->timer (	3073	$TICK_WATCHER = Event->timer (
2554	reentrant => 0,	3074	reentrant => 0,
2555	parked => 1,	3075	parked => 1,
2556	prio => 0,	3076	prio => 0,
2557	at => $NEXT_TICK || $TICK,	3077	at => $NEXT_TICK || $TICK,
…		…
2561	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3081	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2562	unless ++$bug_warning > 10;	3082	unless ++$bug_warning > 10;
2563	return;	3083	return;
2564	}	3084	}
2565		3085
2566	$NOW = Event::time;	3086	$NOW = $tick_start = Event::time;
2567		3087
2568	cf::server_tick; # one server iteration	3088	cf::server_tick; # one server iteration
		3089
		3090	0 && sync_job {#d#
		3091	for(1..10) {
		3092	my $t = Event::time;
		3093	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3094	or die;
		3095
		3096	$map->width (50);
		3097	$map->height (50);
		3098	$map->alloc;
		3099	$map->_load_objects ("/tmp/x.map", 1);
		3100	my $t = Event::time - $t;
		3101
		3102	#next unless $t < 0.0013;#d#
		3103	if ($t < $min) {
		3104	$min = $t;
		3105	}
		3106	$avg = $avg * 0.99 + $t * 0.01;
		3107	}
		3108	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3109	exit 0;
		3110	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3111	};
		3112
2569	$RUNTIME += $TICK;	3113	$RUNTIME += $TICK;
2570	$NEXT_TICK += $TICK;	3114	$NEXT_TICK += $TICK;
2571		3115
2572	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3116	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2573	$NEXT_RUNTIME_WRITE = $NOW + 10;	3117	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2575	write_runtime	3119	write_runtime
2576	or warn "ERROR: unable to write runtime file: $!";	3120	or warn "ERROR: unable to write runtime file: $!";
2577	};	3121	};
2578	}	3122	}
2579		3123
2580	$WAIT_FOR_TICK->broadcast;
2581	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2582
2583	# my $AFTER = Event::time;	3124	# my $AFTER = Event::time;
2584	# warn $AFTER - $NOW;#d#	3125	# warn $AFTER - $NOW;#d#
2585		3126
		3127	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3128	$sig->send;
		3129	}
		3130	while (my $sig = shift @WAIT_FOR_TICK) {
		3131	$sig->send;
		3132	}
		3133
		3134	$NOW = Event::time;
		3135
2586	# if we are delayed by four ticks or more, skip them all	3136	# if we are delayed by four ticks or more, skip them all
2587	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3137	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2588		3138
2589	$TICK_WATCHER->at ($NEXT_TICK);	3139	$TICK_WATCHER->at ($NEXT_TICK);
2590	$TICK_WATCHER->start;	3140	$TICK_WATCHER->start;
		3141
		3142	$LOAD = ($NOW - $tick_start) / $TICK;
		3143	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3144
		3145	_post_tick;
		3146
		3147
2591	},	3148	},
2592	);	3149	);
2593		3150
2594	{	3151	{
2595	BDB::max_poll_time $TICK * 0.1;	3152	BDB::max_poll_time $TICK * 0.1;
…		…
2623		3180
2624	cf::sync_job {	3181	cf::sync_job {
2625	eval {	3182	eval {
2626	BDB::db_env_open	3183	BDB::db_env_open
2627	$DB_ENV,	3184	$DB_ENV,
2628	$BDB_ENV_DIR,	3185	$BDBDIR,
2629	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3186	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2630	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3187	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2631	0666;	3188	0666;
2632		3189
2633	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3190	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2634		3191
2635	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3192	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2636	$DB_ENV->set_lk_detect;	3193	$DB_ENV->set_lk_detect;
2637	};	3194	};
2638		3195
…		…
2654	prio => 6,	3211	prio => 6,
2655	cb => \&IO::AIO::poll_cb,	3212	cb => \&IO::AIO::poll_cb,
2656	);	3213	);
2657	}	3214	}
2658		3215
		3216	my $_log_backtrace;
		3217
		3218	sub _log_backtrace {
		3219	my ($msg, @addr) = @_;
		3220
		3221	$msg =~ s/\n//;
		3222
		3223	# limit the # of concurrent backtraces
		3224	if ($_log_backtrace < 2) {
		3225	++$_log_backtrace;
		3226	async {
		3227	my @bt = fork_call {
		3228	@addr = map { sprintf "%x", $_ } @addr;
		3229	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3230	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3231	or die "addr2line: $!";
		3232
		3233	my @funcs;
		3234	my @res = <$fh>;
		3235	chomp for @res;
		3236	while (@res) {
		3237	my ($func, $line) = splice @res, 0, 2, ();
		3238	push @funcs, "[$func] $line";
		3239	}
		3240
		3241	@funcs
		3242	};
		3243
		3244	LOG llevInfo, "[ABT] $msg\n";
		3245	LOG llevInfo, "[ABT] $_\n" for @bt;
		3246	--$_log_backtrace;
		3247	};
		3248	} else {
		3249	LOG llevInfo, "[ABT] $msg\n";
		3250	LOG llevInfo, "[ABT] [suppressed]\n";
		3251	}
		3252	}
		3253
		3254	# load additional modules
		3255	use cf::pod;
		3256
2659	END { cf::emergency_save }	3257	END { cf::emergency_save }
2660		3258
2661	1	3259	1
2662		3260

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