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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.232 by root, Wed Apr 4 02:07:19 2007 UTC vs.
Revision 1.308 by root, Mon Jul 16 14:09:40 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 ();
27	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
28	use Time::HiRes;	32	use Time::HiRes;
29	use Compress::LZF;	33	use Compress::LZF;
		34	use Digest::MD5 ();
30		35
31	# configure various modules to our taste	36	# configure various modules to our taste
32	#	37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
35		41
36	$Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
37		43
…		…
45	our %COMMAND = ();	51	our %COMMAND = ();
46	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
47		53
48	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
49	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
50	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
51	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
52		59
53	our $RELOAD; # number of reloads so far	60	our $RELOAD; # number of reloads so far
54	our @EVENT;	61	our @EVENT;
55	our $LIBDIR = datadir . "/ext";
56		62
57	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
58	our $TICK_WATCHER;	76	our $TICK_WATCHER;
59	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
61	our $NEXT_TICK;	79	our $NEXT_TICK;
62	our $NOW;	80	our $NOW;
…		…
71	our $RUNTIME;	89	our $RUNTIME;
72		90
73	our %PLAYER; # all users	91	our %PLAYER; # all users
74	our %MAP; # all maps	92	our %MAP; # all maps
75	our $LINK_MAP; # the special {link} map, which is always available	93	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		94
82	# used to convert map paths into valid unix filenames by replacing / by ∕	95	# used to convert map paths into valid unix filenames by replacing / by ∕
83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
84		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
		101
85	binmode STDOUT;	102	binmode STDOUT;
86	binmode STDERR;	103	binmode STDERR;
87		104
88	# read virtual server time, if available	105	# read virtual server time, if available
89	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
90	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
91	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
92	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
93	}	110	}
94		111
95	mkdir cf::localdir;	112	mkdir $_
96	mkdir cf::localdir . "/" . cf::playerdir;	113	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		114
102	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
103		116
104	sub cf::map::normalise;	117	sub cf::map::normalise;
105		118
…		…
116	=item $cf::RUNTIME	129	=item $cf::RUNTIME
117		130
118	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
119	every server tick.	132	every server tick.
120		133
121	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
122		137
123	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
124	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
125		142
126	=item $cf::NOW	143	=item $cf::NOW
127		144
128	The time of the last (current) server tick.	145	The time of the last (current) server tick.
129		146
130	=item $cf::TICK	147	=item $cf::TICK
131		148
132	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
133		160
134	=item %cf::CFG	161	=item %cf::CFG
135		162
136	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
137	from wherever your confdir points to.	164	from wherever your confdir points to.
138		165
139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	166	=item cf::wait_for_tick, cf::wait_for_tick_begin
140		167
141	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
142	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	169	returns directly I<after> the tick processing (and consequently, can only wake one process
143	processing has been done. Call C<< ->wait >> on them to maximise the	170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
144	window of cpu time available, or simply to synchronise to the server tick.
145		171
146	=back	172	=back
147		173
148	=cut	174	=cut
149		175
150	BEGIN {	176	BEGIN {
151	*CORE::GLOBAL::warn = sub {	177	*CORE::GLOBAL::warn = sub {
152	my $msg = join "", @_;	178	my $msg = join "", @_;
153	utf8::encode $msg;
154		179
155	$msg .= "\n"	180	$msg .= "\n"
156	unless $msg =~ /\n$/;	181	unless $msg =~ /\n$/;
157		182
		183	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		184
		185	utf8::encode $msg;
158	LOG llevError, $msg;	186	LOG llevError, $msg;
159	};	187	};
160	}	188	}
161		189
162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	190	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	191	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
164	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	192	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
165	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	193	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
166	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	194	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		195	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
167	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	196	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
168		197
169	# we bless all objects into (empty) derived classes to force a method lookup	198	# we bless all objects into (empty) derived classes to force a method lookup
170	# within the Safe compartment.	199	# within the Safe compartment.
171	for my $pkg (qw(	200	for my $pkg (qw(
172	cf::global cf::attachable	201	cf::global cf::attachable
…		…
180	}	209	}
181		210
182	$Event::DIED = sub {	211	$Event::DIED = sub {
183	warn "error in event callback: @_";	212	warn "error in event callback: @_";
184	};	213	};
		214
		215	#############################################################################
185		216
186	=head2 UTILITY FUNCTIONS	217	=head2 UTILITY FUNCTIONS
187		218
188	=over 4	219	=over 4
189		220
…		…
208	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	239	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
209	$d	240	$d
210	} || "[unable to dump $_[0]: '$@']";	241	} || "[unable to dump $_[0]: '$@']";
211	}	242	}
212		243
213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
214
215	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
216		245
217	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
218		247
219	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
220		249
221	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
		251
		252	=cut
		253
		254	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		255
		256	sub to_json ($) { $json_coder->encode ($_[0]) }
		257	sub from_json ($) { $json_coder->decode ($_[0]) }
222		258
223	=item cf::lock_wait $string	259	=item cf::lock_wait $string
224		260
225	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
226		262
…		…
232	returned.	268	returned.
233		269
234	Lock names should begin with a unique identifier (for example, cf::map::find	270	Lock names should begin with a unique identifier (for example, cf::map::find
235	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
236		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
237	=cut	277	=cut
238		278
239	our %LOCK;	279	our %LOCK;
240		280
241	sub lock_wait($) {	281	sub lock_wait($) {
…		…
258		298
259	Coro::guard {	299	Coro::guard {
260	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
261	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
262	}	302	}
		303	}
		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
263	}	309	}
264		310
265	sub freeze_mainloop {	311	sub freeze_mainloop {
266	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
267		313
…		…
282		328
283	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
284		330
285	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
286		332
287	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
290		337
291	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
294	fast or be very important.	341	fast or be very important.
…		…
297		344
298	sub sync_job(&) {	345	sub sync_job(&) {
299	my ($job) = @_;	346	my ($job) = @_;
300		347
301	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
302	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
304		353
305	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	355	# (but this is cancel-safe)
…		…
317		366
318	while ($busy) {	367	while ($busy) {
319	Coro::cede or Event::one_event;	368	Coro::cede or Event::one_event;
320	}	369	}
321		370
		371	$time = Event::time - $time;
		372
		373	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		374	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		375
		376	$tick_start += $time; # do not account sync jobs to server load
		377
322	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
323	} else {	379	} else {
324	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
325		381
326	$job->()	382	$job->()
…		…
345	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
346		402
347	$coro	403	$coro
348	}	404	}
349		405
350	sub write_runtime {	406	=item fork_call { }, $args
351	my $guard = cf::lock_acquire "write_runtime";
352		407
353	my $runtime = cf::localdir . "/runtime";	408	Executes the given code block with the given arguments in a seperate
		409	process, returning the results. Everything must be serialisable with
		410	Coro::Storable. May, of course, block. Note that the executed sub may
		411	never block itself or use any form of Event handling.
354		412
355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	413	=cut
356	or return;
357		414
358	my $value = $cf::RUNTIME + 90 + 10;	415	sub _store_scalar {
359	# 10 is the runtime save interval, for a monotonic clock	416	open my $fh, ">", \my $buf
360	# 60 allows for the watchdog to kill the server.	417	or die "fork_call: cannot open fh-to-buf in child : $!";
361		418	Storable::store_fd $_[0], $fh;
362	(aio_write $fh, 0, (length $value), $value, 0) <= 0
363	and return;
364
365	# always fsync - this file is important
366	aio_fsync $fh
367	and return;
368
369	close $fh	419	close $fh;
370	or return;
371		420
372	aio_rename "$runtime~", $runtime	421	$buf
373	and return;	422	}
374		423
		424	sub fork_call(&@) {
		425	my ($cb, @args) = @_;
		426
		427	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		428	# or die "socketpair: $!";
		429	pipe my $fh1, my $fh2
		430	or die "pipe: $!";
		431
		432	if (my $pid = fork) {
		433	close $fh2;
		434
		435	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		436	warn "pst<$res>" unless $res =~ /^pst/;
		437	$res = Coro::Storable::thaw $res;
		438
		439	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		440
		441	Carp::confess $$res unless "ARRAY" eq ref $res;
		442
		443	return wantarray ? @$res : $res->[-1];
		444	} else {
		445	reset_signals;
		446	local $SIG{__WARN__};
		447	local $SIG{__DIE__};
		448	# just in case, this hack effectively disables event
		449	# in the child. cleaner and slower would be canceling all watchers,
		450	# but this works for the time being.
		451	local $Coro::idle;
		452	$Coro::current->prio (Coro::PRIO_MAX);
		453
		454	eval {
		455	close $fh1;
		456
		457	my @res = eval { $cb->(@args) };
		458
		459	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		460	close $fh2;
		461	};
		462
		463	warn $@ if $@;
		464	_exit 0;
375	1	465	}
		466	}
		467
		468	=item $value = cf::db_get $family => $key
		469
		470	Returns a single value from the environment database.
		471
		472	=item cf::db_put $family => $key => $value
		473
		474	Stores the given C<$value> in the family. It can currently store binary
		475	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		476
		477	=cut
		478
		479	our $DB;
		480
		481	sub db_init {
		482	unless ($DB) {
		483	$DB = BDB::db_create $DB_ENV;
		484
		485	cf::sync_job {
		486	eval {
		487	$DB->set_flags (BDB::CHKSUM);
		488
		489	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		490	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		491	cf::cleanup "db_open(db): $!" if $!;
		492	};
		493	cf::cleanup "db_open(db): $@" if $@;
		494	};
		495	}
		496	}
		497
		498	sub db_get($$) {
		499	my $key = "$_[0]/$_[1]";
		500
		501	cf::sync_job {
		502	BDB::db_get $DB, undef, $key, my $data;
		503
		504	$! ? ()
		505	: $data
		506	}
		507	}
		508
		509	sub db_put($$$) {
		510	BDB::dbreq_pri 4;
		511	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		512	}
		513
		514	=item cf::cache $id => [$paths...], $processversion => $process
		515
		516	Generic caching function that returns the value of the resource $id,
		517	caching and regenerating as required.
		518
		519	This function can block.
		520
		521	=cut
		522
		523	sub cache {
		524	my ($id, $src, $processversion, $process) = @_;
		525
		526	my $meta =
		527	join "\x00",
		528	$processversion,
		529	map {
		530	aio_stat $_
		531	and Carp::croak "$_: $!";
		532
		533	($_, (stat _)[7,9])
		534	} @$src;
		535
		536	my $dbmeta = db_get cache => "$id/meta";
		537	if ($dbmeta ne $meta) {
		538	# changed, we may need to process
		539
		540	my @data;
		541	my $md5;
		542
		543	for (0 .. $#$src) {
		544	0 <= aio_load $src->[$_], $data[$_]
		545	or Carp::croak "$src->[$_]: $!";
		546	}
		547
		548	# if processing is expensive, check
		549	# checksum first
		550	if (1) {
		551	$md5 =
		552	join "\x00",
		553	$processversion,
		554	map {
		555	Coro::cede;
		556	($src->[$_], Digest::MD5::md5_hex $data[$_])
		557	} 0.. $#$src;
		558
		559
		560	my $dbmd5 = db_get cache => "$id/md5";
		561	if ($dbmd5 eq $md5) {
		562	db_put cache => "$id/meta", $meta;
		563
		564	return db_get cache => "$id/data";
		565	}
		566	}
		567
		568	my $t1 = Time::HiRes::time;
		569	my $data = $process->(\@data);
		570	my $t2 = Time::HiRes::time;
		571
		572	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		573
		574	db_put cache => "$id/data", $data;
		575	db_put cache => "$id/md5" , $md5;
		576	db_put cache => "$id/meta", $meta;
		577
		578	return $data;
		579	}
		580
		581	db_get cache => "$id/data"
376	}	582	}
377		583
378	=item cf::datalog type => key => value, ...	584	=item cf::datalog type => key => value, ...
379		585
380	Log a datalog packet of the given type with the given key-value pairs.	586	Log a datalog packet of the given type with the given key-value pairs.
…		…
398	attach callbacks/event handlers (a collection of which is called an "attachment")	604	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	605	to it. All such attachable objects support the following methods.
400		606
401	In the following description, CLASS can be any of C<global>, C<object>	607	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	608	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	609	Crossfire TRT).
404		610
405	=over 4	611	=over 4
406		612
407	=item $attachable->attach ($attachment, key => $value...)	613	=item $attachable->attach ($attachment, key => $value...)
408		614
…		…
571	$registry = $CB_TYPE[$object_type] ||= [];	777	$registry = $CB_TYPE[$object_type] ||= [];
572		778
573	} elsif ($type eq "subtype") {	779	} elsif ($type eq "subtype") {
574	defined $object_type or Carp::croak "subtype specified without type";	780	defined $object_type or Carp::croak "subtype specified without type";
575	my $object_subtype = shift @arg;	781	my $object_subtype = shift @arg;
576	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	782	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
577		783
578	} elsif ($type eq "package") {	784	} elsif ($type eq "package") {
579	my $pkg = shift @arg;	785	my $pkg = shift @arg;
580		786
581	while (my ($name, $id) = each %cb_id) {	787	while (my ($name, $id) = each %cb_id) {
…		…
610	_attach $registry, $klass, @attach;	816	_attach $registry, $klass, @attach;
611	}	817	}
612		818
613	$obj->{$name} = \%arg;	819	$obj->{$name} = \%arg;
614	} else {	820	} else {
615	warn "object uses attachment '$name' that is not available, postponing.\n";	821	warn "object uses attachment '$name' which is not available, postponing.\n";
616	}	822	}
617		823
618	$obj->{_attachment}{$name} = undef;	824	$obj->{_attachment}{$name} = undef;
619	}	825	}
620		826
…		…
622	if (ref $_[0]) {	828	if (ref $_[0]) {
623	_object_attach @_;	829	_object_attach @_;
624	} else {	830	} else {
625	_attach shift->_attach_registry, @_;	831	_attach shift->_attach_registry, @_;
626	}	832	}
		833	_recalc_want;
627	};	834	};
628		835
629	# all those should be optimised	836	# all those should be optimised
630	sub cf::attachable::detach {	837	sub cf::attachable::detach {
631	my ($obj, $name) = @_;	838	my ($obj, $name) = @_;
…		…
634	delete $obj->{_attachment}{$name};	841	delete $obj->{_attachment}{$name};
635	reattach ($obj);	842	reattach ($obj);
636	} else {	843	} else {
637	Carp::croak "cannot, currently, detach class attachments";	844	Carp::croak "cannot, currently, detach class attachments";
638	}	845	}
		846	_recalc_want;
639	};	847	};
640		848
641	sub cf::attachable::attached {	849	sub cf::attachable::attached {
642	my ($obj, $name) = @_;	850	my ($obj, $name) = @_;
643		851
…		…
816	or return;	1024	or return;
817	$av = eval { (Storable::thaw $av)->{objs} };	1025	$av = eval { (Storable::thaw $av)->{objs} };
818	}	1026	}
819		1027
820	warn sprintf "loading %s (%d)\n",	1028	warn sprintf "loading %s (%d)\n",
821	$filename, length $data, scalar @{$av || []};#d#	1029	$filename, length $data, scalar @{$av || []};
822	return ($data, $av);	1030	return ($data, $av);
823	}	1031	}
		1032
		1033	=head2 COMMAND CALLBACKS
		1034
		1035	=over 4
		1036
		1037	=cut
824		1038
825	#############################################################################	1039	#############################################################################
826	# command handling &c	1040	# command handling &c
827		1041
828	=item cf::register_command $name => \&callback($ob,$args);	1042	=item cf::register_command $name => \&callback($ob,$args);
…		…
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1055	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1056	}
843		1057
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1058	=item cf::register_extcmd $name => \&callback($pl,$packet);
845		1059
846	Register a callbackf ro execution when the client sends an extcmd packet.	1060	Register a callback for execution when the client sends an (synchronous)
		1061	extcmd packet. Ext commands will be processed in the order they are
		1062	received by the server, like other user commands. The first argument is
		1063	the logged-in player. Ext commands can only be processed after a player
		1064	has logged in successfully.
847		1065
848	If the callback returns something, it is sent back as if reply was being	1066	If the callback returns something, it is sent back as if reply was being
849	called.	1067	called.
850		1068
		1069	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1070
		1071	Register a callback for execution when the client sends an (asynchronous)
		1072	exticmd packet. Exti commands are processed by the server as soon as they
		1073	are received, i.e. out of order w.r.t. other commands. The first argument
		1074	is a client socket. Exti commands can be received anytime, even before
		1075	log-in.
		1076
		1077	If the callback returns something, it is sent back as if reply was being
		1078	called.
		1079
851	=cut	1080	=cut
852		1081
853	sub register_extcmd {	1082	sub register_extcmd {
854	my ($name, $cb) = @_;	1083	my ($name, $cb) = @_;
855		1084
856	$EXTCMD{$name} = $cb;	1085	$EXTCMD{$name} = $cb;
		1086	}
		1087
		1088	sub register_exticmd {
		1089	my ($name, $cb) = @_;
		1090
		1091	$EXTICMD{$name} = $cb;
857	}	1092	}
858		1093
859	cf::player->attach (	1094	cf::player->attach (
860	on_command => sub {	1095	on_command => sub {
861	my ($pl, $name, $params) = @_;	1096	my ($pl, $name, $params) = @_;
…		…
870	cf::override;	1105	cf::override;
871	},	1106	},
872	on_extcmd => sub {	1107	on_extcmd => sub {
873	my ($pl, $buf) = @_;	1108	my ($pl, $buf) = @_;
874		1109
875	my $msg = eval { from_json $buf };	1110	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
876		1111
877	if (ref $msg) {	1112	if (ref $msg) {
878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1113	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
879	if (my %reply = $cb->($pl, $msg)) {	1114	if (my %reply = $cb->($pl, $msg)) {
880	$pl->ext_reply ($msg->{msgid}, %reply);	1115	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
886		1121
887	cf::override;	1122	cf::override;
888	},	1123	},
889	);	1124	);
890		1125
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 {	1126	sub load_extensions {
		1127	cf::sync_job {
		1128	my %todo;
		1129
926	for my $ext (<$LIBDIR/*.ext>) {	1130	for my $path (<$LIBDIR/*.ext>) {
927	next unless -r $ext;	1131	next unless -r $path;
928	eval {	1132
929	load_extension $ext;	1133	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1134	my $base = $1;
		1135	my $pkg = $1;
		1136	$pkg =~ s/[^[:word:]]/_/g;
		1137	$pkg = "ext::$pkg";
		1138
		1139	open my $fh, "<:utf8", $path
		1140	or die "$path: $!";
		1141
		1142	my $source = do { local $/; <$fh> };
		1143
		1144	my %ext = (
		1145	path => $path,
		1146	base => $base,
		1147	pkg => $pkg,
		1148	);
		1149
		1150	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1151	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1152
		1153	$ext{source} =
		1154	"package $pkg; use strict; use utf8;\n"
		1155	. "#line 1 \"$path\"\n{\n"
		1156	. $source
		1157	. "\n};\n1";
		1158
		1159	$todo{$base} = \%ext;
		1160	}
		1161
		1162	my %done;
		1163	while (%todo) {
		1164	my $progress;
		1165
		1166	while (my ($k, $v) = each %todo) {
		1167	for (split /,\s*/, $v->{meta}{depends}) {
		1168	goto skip
		1169	unless exists $done{$_};
		1170	}
		1171
		1172	warn "... loading '$k' into '$v->{pkg}'\n";
		1173
		1174	unless (eval $v->{source}) {
		1175	my $msg = $@ ? "$v->{path}: $@\n"
		1176	: "$v->{base}: extension inactive.\n";
		1177
		1178	if (exists $v->{meta}{mandatory}) {
		1179	warn $msg;
		1180	warn "mandatory extension failed to load, exiting.\n";
		1181	exit 1;
		1182	}
		1183
		1184	warn $msg;
		1185	}
		1186
		1187	$done{$k} = delete $todo{$k};
		1188	push @EXTS, $v->{pkg};
		1189	$progress = 1;
930	1	1190	}
931	} or warn "$ext not loaded: $@";	1191
		1192	skip:
		1193	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1194	unless $progress;
		1195	}
932	}	1196	};
933	}	1197	}
934		1198
935	#############################################################################	1199	#############################################################################
936		1200
		1201	=back
		1202
937	=head2 CORE EXTENSIONS	1203	=head2 CORE EXTENSIONS
938		1204
939	Functions and methods that extend core crossfire objects.	1205	Functions and methods that extend core crossfire objects.
940		1206
941	=cut	1207	=cut
…		…
953	Returns the given player object, loading it if necessary (might block).	1219	Returns the given player object, loading it if necessary (might block).
954		1220
955	=cut	1221	=cut
956		1222
957	sub playerdir($) {	1223	sub playerdir($) {
958	cf::localdir	1224	"$PLAYERDIR/"
959	. "/"
960	. cf::playerdir
961	. "/"
962	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1225	. (ref $_[0] ? $_[0]->ob->name : $_[0])
963	}	1226	}
964		1227
965	sub path($) {	1228	sub path($) {
966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1229	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
967		1230
968	(playerdir $login) . "/$login.pl"	1231	(playerdir $login) . "/playerdata"
969	}	1232	}
970		1233
971	sub find_active($) {	1234	sub find_active($) {
972	$cf::PLAYER{$_[0]}	1235	$cf::PLAYER{$_[0]}
973	and $cf::PLAYER{$_[0]}->active	1236	and $cf::PLAYER{$_[0]}->active
…		…
986	my $login = $_[0];	1249	my $login = $_[0];
987		1250
988	my $guard = cf::lock_acquire "user_find:$login";	1251	my $guard = cf::lock_acquire "user_find:$login";
989		1252
990	$cf::PLAYER{$_[0]} || do {	1253	$cf::PLAYER{$_[0]} || do {
		1254	# rename old playerfiles to new ones
		1255	#TODO: remove when no longer required
		1256	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1257	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1258	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1259	aio_unlink +(playerdir $login) . "/$login.pl";
		1260
991	my $pl = load_pl path $login	1261	my $pl = load_pl path $login
992	or return;	1262	or return;
993	$cf::PLAYER{$login} = $pl	1263	$cf::PLAYER{$login} = $pl
994	}	1264	}
995	}	1265	}
…		…
1079	while and may block, so not sync_job-capable, ever.	1349	while and may block, so not sync_job-capable, ever.
1080		1350
1081	=cut	1351	=cut
1082		1352
1083	sub list_logins {	1353	sub list_logins {
1084	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1354	my $dirs = aio_readdir $PLAYERDIR
1085	or return [];	1355	or return [];
1086		1356
1087	my @logins;	1357	my @logins;
1088		1358
1089	for my $login (@$dirs) {	1359	for my $login (@$dirs) {
…		…
1124	}	1394	}
1125		1395
1126	\@paths	1396	\@paths
1127	}	1397	}
1128		1398
		1399	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1400
		1401	Expand crossfire pod fragments into protocol xml.
		1402
		1403	=cut
		1404
		1405	sub expand_cfpod {
		1406	((my $self), (local $_)) = @_;
		1407
		1408	# escape & and <
		1409	s/&/&amp;/g;
		1410	s/(?<![BIUGH])</&lt;/g;
		1411
		1412	# this is buggy, it needs to properly take care of nested <'s
		1413
		1414	1 while
		1415	# replace B<>, I<>, U<> etc.
		1416	s/B<([^\>]*)>/<b>$1<\/b>/
		1417	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1418	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1419	# replace G<male|female> tags
		1420	|| s{G<([^>|]*)\|([^>]*)>}{
		1421	$self->gender ? $2 : $1
		1422	}ge
		1423	# replace H<hint text>
		1424	|| s{H<([^\>]*)>}
		1425	{
		1426	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1427	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1428	"")
		1429	[$self->{hintmode}]
		1430	}ge;
		1431
		1432	# create single paragraphs (very hackish)
		1433	s/(?<=\S)\n(?=\w)/ /g;
		1434
		1435	# compress some whitespace
		1436	s/\s+\n/\n/g; # ws line-ends
		1437	s/\n\n+/\n/g; # double lines
		1438	s/^\n+//; # beginning lines
		1439	s/\n+$//; # ending lines
		1440
		1441	$_
		1442	}
		1443
		1444	sub hintmode {
		1445	$_[0]{hintmode} = $_[1] if @_ > 1;
		1446	$_[0]{hintmode}
		1447	}
		1448
1129	=item $player->ext_reply ($msgid, %msg)	1449	=item $player->ext_reply ($msgid, %msg)
1130		1450
1131	Sends an ext reply to the player.	1451	Sends an ext reply to the player.
1132		1452
1133	=cut	1453	=cut
1134		1454
1135	sub ext_reply($$%) {	1455	sub ext_reply($$%) {
1136	my ($self, $id, %msg) = @_;	1456	my ($self, $id, %msg) = @_;
1137		1457
1138	$msg{msgid} = $id;	1458	$msg{msgid} = $id;
1139		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1140	$self->send ("ext " . cf::to_json \%msg);
1141	}	1460	}
1142		1461
1143	=item $player->ext_event ($type, %msg)	1462	=item $player->ext_event ($type, %msg)
1144		1463
1145	Sends an ext event to the client.	1464	Sends an ext event to the client.
…		…
1150	my ($self, $type, %msg) = @_;	1469	my ($self, $type, %msg) = @_;
1151		1470
1152	$self->ns->ext_event ($type, %msg);	1471	$self->ns->ext_event ($type, %msg);
1153	}	1472	}
1154		1473
1155	package cf;	1474	=head3 cf::region
		1475
		1476	=over 4
		1477
		1478	=cut
		1479
		1480	package cf::region;
		1481
		1482	=item cf::region::find_by_path $path
		1483
		1484	Tries to decuce the likely region for a map knowing only its path.
		1485
		1486	=cut
		1487
		1488	sub find_by_path($) {
		1489	my ($path) = @_;
		1490
		1491	my ($match, $specificity);
		1492
		1493	for my $region (list) {
		1494	if ($region->{match} && $path =~ $region->{match}) {
		1495	($match, $specificity) = ($region, $region->specificity)
		1496	if $region->specificity > $specificity;
		1497	}
		1498	}
		1499
		1500	$match
		1501	}
1156		1502
1157	=back	1503	=back
1158
1159		1504
1160	=head3 cf::map	1505	=head3 cf::map
1161		1506
1162	=over 4	1507	=over 4
1163		1508
…		…
1218	my ($self, $merge) = @_;	1563	my ($self, $merge) = @_;
1219		1564
1220	# we have to keep some variables in memory intact	1565	# we have to keep some variables in memory intact
1221	local $self->{path};	1566	local $self->{path};
1222	local $self->{load_path};	1567	local $self->{load_path};
1223	local $self->{deny_save};
1224	local $self->{deny_reset};
1225		1568
1226	$self->SUPER::thawer_merge ($merge);	1569	$self->SUPER::thawer_merge ($merge);
1227	}	1570	}
1228		1571
1229	sub normalise {	1572	sub normalise {
…		…
1276	$self->init; # pass $1 etc.	1619	$self->init; # pass $1 etc.
1277	return $self;	1620	return $self;
1278	}	1621	}
1279	}	1622	}
1280		1623
1281	Carp::carp "unable to resolve path '$path' (base '$base').";	1624	Carp::cluck "unable to resolve path '$path' (base '$base').";
1282	()	1625	()
1283	}	1626	}
1284		1627
1285	sub init {	1628	sub init {
1286	my ($self) = @_;	1629	my ($self) = @_;
…		…
1301		1644
1302	# the original (read-only) location	1645	# the original (read-only) location
1303	sub load_path {	1646	sub load_path {
1304	my ($self) = @_;	1647	my ($self) = @_;
1305		1648
1306	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1649	"$MAPDIR/$self->{path}.map"
1307	}	1650	}
1308		1651
1309	# the temporary/swap location	1652	# the temporary/swap location
1310	sub save_path {	1653	sub save_path {
1311	my ($self) = @_;	1654	my ($self) = @_;
1312		1655
1313	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1656	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1314	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1657	"$TMPDIR/$path.map"
1315	}	1658	}
1316		1659
1317	# the unique path, undef == no special unique path	1660	# the unique path, undef == no special unique path
1318	sub uniq_path {	1661	sub uniq_path {
1319	my ($self) = @_;	1662	my ($self) = @_;
1320		1663
1321	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1664	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1322	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1665	"$UNIQUEDIR/$path"
1323	}	1666	}
1324		1667
1325	# and all this just because we cannot iterate over	1668	# and all this just because we cannot iterate over
1326	# all maps in C++...	1669	# all maps in C++...
1327	sub change_all_map_light {	1670	sub change_all_map_light {
1328	my ($change) = @_;	1671	my ($change) = @_;
1329		1672
1330	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1331	for grep $_->outdoor, values %cf::MAP;	1674	for grep $_->outdoor, values %cf::MAP;
		1675	}
		1676
		1677	sub decay_objects {
		1678	my ($self) = @_;
		1679
		1680	return if $self->{deny_reset};
		1681
		1682	$self->do_decay_objects;
1332	}	1683	}
1333		1684
1334	sub unlink_save {	1685	sub unlink_save {
1335	my ($self) = @_;	1686	my ($self) = @_;
1336		1687
…		…
1394	$self->load_header_orig	1745	$self->load_header_orig
1395	or return;	1746	or return;
1396	$self->prepare_orig;	1747	$self->prepare_orig;
1397	}	1748	}
1398		1749
		1750	$self->{deny_reset} = 1
		1751	if $self->no_reset;
		1752
		1753	$self->default_region (cf::region::find_by_path $self->{path})
		1754	unless $self->default_region;
		1755
1399	1	1756	1
1400	}	1757	}
1401		1758
1402	sub find;	1759	sub find;
1403	sub find {	1760	sub find {
…		…
1415	$map->{last_save} = $cf::RUNTIME;	1772	$map->{last_save} = $cf::RUNTIME;
1416		1773
1417	$map->load_header	1774	$map->load_header
1418	or return;	1775	or return;
1419		1776
1420	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1777	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1421	# doing this can freeze the server in a sync job, obviously	1778	# doing this can freeze the server in a sync job, obviously
1422	#$cf::WAIT_FOR_TICK->wait;	1779	#$cf::WAIT_FOR_TICK->wait;
1423	$map->reset;	1780	$map->reset;
1424	undef $guard;	1781	undef $guard;
1425	return find $path;	1782	return find $path;
…		…
1436	my ($self) = @_;	1793	my ($self) = @_;
1437		1794
1438	local $self->{deny_reset} = 1; # loading can take a long time	1795	local $self->{deny_reset} = 1; # loading can take a long time
1439		1796
1440	my $path = $self->{path};	1797	my $path = $self->{path};
		1798
		1799	{
1441	my $guard = cf::lock_acquire "map_load:$path";	1800	my $guard = cf::lock_acquire "map_load:$path";
1442		1801
1443	return if $self->in_memory != cf::MAP_SWAPPED;	1802	return if $self->in_memory != cf::MAP_SWAPPED;
1444		1803
1445	$self->in_memory (cf::MAP_LOADING);	1804	$self->in_memory (cf::MAP_LOADING);
1446		1805
1447	$self->alloc;	1806	$self->alloc;
1448		1807
1449	$self->pre_load;	1808	$self->pre_load;
1450
1451	$self->_load_objects ($self->{load_path}, 1)
1452	or return;
1453
1454	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1455	if delete $self->{load_original};
1456
1457	if (my $uniq = $self->uniq_path) {
1458	utf8::encode $uniq;
1459	if (aio_open $uniq, O_RDONLY, 0) {
1460	$self->clear_unique_items;
1461	$self->_load_objects ($uniq, 0);
1462	}
1463	}
1464
1465	Coro::cede;
1466
1467	# now do the right thing for maps
1468	$self->link_multipart_objects;
1469
1470	unless ($self->{deny_activate}) {
1471	$self->decay_objects;
1472	$self->fix_auto_apply;
1473	$self->update_buttons;
1474	Coro::cede;	1809	Coro::cede;
1475	$self->set_darkness_map;	1810
		1811	$self->_load_objects ($self->{load_path}, 1)
		1812	or return;
		1813
		1814	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1815	if delete $self->{load_original};
		1816
		1817	if (my $uniq = $self->uniq_path) {
		1818	utf8::encode $uniq;
		1819	if (aio_open $uniq, O_RDONLY, 0) {
		1820	$self->clear_unique_items;
		1821	$self->_load_objects ($uniq, 0);
		1822	}
		1823	}
		1824
		1825	Coro::cede;
		1826	# now do the right thing for maps
		1827	$self->link_multipart_objects;
1476	$self->difficulty ($self->estimate_difficulty)	1828	$self->difficulty ($self->estimate_difficulty)
1477	unless $self->difficulty;	1829	unless $self->difficulty;
1478	Coro::cede;	1830	Coro::cede;
		1831
		1832	unless ($self->{deny_activate}) {
		1833	$self->decay_objects;
		1834	$self->fix_auto_apply;
		1835	$self->update_buttons;
		1836	Coro::cede;
		1837	$self->set_darkness_map;
		1838	Coro::cede;
1479	$self->activate;	1839	$self->activate;
		1840	}
		1841
		1842	$self->in_memory (cf::MAP_IN_MEMORY);
1480	}	1843	}
1481		1844
1482	$self->post_load;	1845	$self->post_load;
1483
1484	$self->in_memory (cf::MAP_IN_MEMORY);
1485	}	1846	}
1486		1847
1487	sub customise_for {	1848	sub customise_for {
1488	my ($self, $ob) = @_;	1849	my ($self, $ob) = @_;
1489		1850
1490	return find "~" . $ob->name . "/" . $self->{path}	1851	return find "~" . $ob->name . "/" . $self->{path}
1491	if $self->per_player;	1852	if $self->per_player;
		1853
		1854	# return find "?party/" . $ob->name . "/" . $self->{path}
		1855	# if $self->per_party;
1492		1856
1493	$self	1857	$self
1494	}	1858	}
1495		1859
1496	# find and load all maps in the 3x3 area around a map	1860	# find and load all maps in the 3x3 area around a map
…		…
1543		1907
1544	undef $MAP_PREFETCH{$path};	1908	undef $MAP_PREFETCH{$path};
1545	$MAP_PREFETCHER ||= cf::async {	1909	$MAP_PREFETCHER ||= cf::async {
1546	while (%MAP_PREFETCH) {	1910	while (%MAP_PREFETCH) {
1547	for my $path (keys %MAP_PREFETCH) {	1911	for my $path (keys %MAP_PREFETCH) {
1548	my $map = find $path	1912	if (my $map = find $path) {
1549	or next;
1550	$map->load;	1913	$map->load;
		1914	}
1551		1915
1552	delete $MAP_PREFETCH{$path};	1916	delete $MAP_PREFETCH{$path};
1553	}	1917	}
1554	}	1918	}
1555	undef $MAP_PREFETCHER;	1919	undef $MAP_PREFETCHER;
…		…
1607		1971
1608	sub reset_at {	1972	sub reset_at {
1609	my ($self) = @_;	1973	my ($self) = @_;
1610		1974
1611	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1612	return 1e99 if $self->isa ("ext::map_per_player");#d#
1613	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1614		1977
1615	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1616	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1617		1980
…		…
1628	my ($self) = @_;	1991	my ($self) = @_;
1629		1992
1630	my $lock = cf::lock_acquire "map_data:$self->{path}";	1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
1631		1994
1632	return if $self->players;	1995	return if $self->players;
1633	return if $self->isa ("ext::map_per_player");#d#
1634		1996
1635	warn "resetting map ", $self->path;#d#	1997	warn "resetting map ", $self->path;
1636		1998
1637	$self->in_memory (cf::MAP_SWAPPED);	1999	$self->in_memory (cf::MAP_SWAPPED);
1638		2000
1639	# need to save uniques path	2001	# need to save uniques path
1640	unless ($self->{deny_save}) {	2002	unless ($self->{deny_save}) {
…		…
1672	$cf::MAP{$self->path} = $self;	2034	$cf::MAP{$self->path} = $self;
1673		2035
1674	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1675	}	2037	}
1676		2038
		2039	=item $maps = cf::map::tmp_maps
		2040
		2041	Returns an arrayref with all map paths of currently instantiated and saved
		2042	maps. May block.
		2043
		2044	=cut
		2045
		2046	sub tmp_maps() {
		2047	[
		2048	map {
		2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $TMPDIR or [] }
		2054	]
		2055	}
		2056
		2057	=item $maps = cf::map::random_maps
		2058
		2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
		2061
		2062	=cut
		2063
		2064	sub random_maps() {
		2065	[
		2066	map {
		2067	utf8::decode $_;
		2068	/\.map$/
		2069	? normalise "?random/$_"
		2070	: ()
		2071	} @{ aio_readdir $RANDOMDIR or [] }
		2072	]
		2073	}
		2074
1677	=item cf::map::unique_maps	2075	=item cf::map::unique_maps
1678		2076
1679	Returns an arrayref of paths of all shared maps that have	2077	Returns an arrayref of paths of all shared maps that have
1680	instantiated unique items. May block.	2078	instantiated unique items. May block.
1681		2079
1682	=cut	2080	=cut
1683		2081
1684	sub unique_maps() {	2082	sub unique_maps() {
1685	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2083	[
1686	or return;	2084	map {
1687
1688	my @paths;
1689
1690	for (@$files) {
1691	utf8::decode $_;	2085	utf8::decode $_;
1692	next if /\.pst$/;	2086	/\.map$/
1693	next unless /^$PATH_SEP/o;	2087	? normalise $_
1694		2088	: ()
1695	push @paths, cf::map::normalise $_;	2089	} @{ aio_readdir $UNIQUEDIR or [] }
1696	}	2090	]
1697
1698	\@paths
1699	}	2091	}
1700		2092
1701	package cf;	2093	package cf;
1702		2094
1703	=back	2095	=back
…		…
1749		2141
1750	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1751		2143
1752	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1753	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1754	} else {	2147	} else {
		2148	my $pl = $self->contr;
		2149
		2150	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2151	my $diag = $pl->{npc_dialog};
		2152	$diag->{pl}->ext_reply (
		2153	$diag->{id},
		2154	msgtype => "reply",
		2155	msg => $diag->{pl}->expand_cfpod ($msg),
		2156	add_topics => []
		2157	);
		2158
		2159	} else {
1755	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1756	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1757	}	2163	}
1758	}	2164	}
1759		2165
1760	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1761		2167
…		…
1809	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1810		2216
1811	return if UNIVERSAL::isa $self->map, "ext::map_link";	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1812		2218
1813	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1814	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1815		2221
1816	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2222	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1817	}	2223	}
1818		2224
1819	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1820	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1821		2229
1822	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1823		2231
1824	unless ($map) {	2232	unless ($map) {
1825	# restore original map position	2233	# restore original map position
…		…
1848		2256
1849	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1850	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1851	}	2259	}
1852		2260
1853	cf::player->attach (	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1854	on_logout => sub {
1855	my ($pl) = @_;
1856		2262
1857	# abort map switching before logout	2263	Moves the player to the given map-path and coordinates by first freezing
1858	if ($pl->ob->{_link_pos}) {	2264	her, loading and preparing them map, calling the provided $check callback
1859	cf::sync_job {	2265	that has to return the map if sucecssful, and then unfreezes the player on
1860	$pl->ob->leave_link	2266	the new (success) or old (failed) map position. In either case, $done will
1861	};	2267	be called at the end of this process.
1862	}
1863	},
1864	on_login => sub {
1865	my ($pl) = @_;
1866		2268
1867	# try to abort aborted map switching on player login :)
1868	# should happen only on crashes
1869	if ($pl->ob->{_link_pos}) {
1870	$pl->ob->enter_link;
1871	(async {
1872	$pl->ob->reply (undef,
1873	"There was an internal problem at your last logout, "
1874	. "the server will try to bring you to your intended destination in a second.",
1875	cf::NDI_RED);
1876	# we need this sleep as the login has a concurrent enter_exit running
1877	# and this sleep increases chances of the player not ending up in scorn
1878	Coro::Timer::sleep 1;
1879	$pl->ob->leave_link;
1880	})->prio (2);
1881	}
1882	},
1883	);
1884
1885	=item $player_object->goto ($path, $x, $y)
1886
1887	=cut	2269	=cut
		2270
		2271	our $GOTOGEN;
1888		2272
1889	sub cf::object::player::goto {	2273	sub cf::object::player::goto {
1890	my ($self, $path, $x, $y) = @_;	2274	my ($self, $path, $x, $y, $check, $done) = @_;
		2275
		2276	# do generation counting so two concurrent goto's will be executed in-order
		2277	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1891		2278
1892	$self->enter_link;	2279	$self->enter_link;
1893		2280
1894	(async {	2281	(async {
1895	my $map = eval {	2282	my $map = eval {
1896	my $map = cf::map::find $path;	2283	my $map = cf::map::find $path;
		2284
		2285	if ($map) {
1897	$map = $map->customise_for ($self) if $map;	2286	$map = $map->customise_for ($self);
		2287	$map = $check->($map) if $check && $map;
		2288	} else {
		2289	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2290	}
		2291
1898	$map	2292	$map
		2293	};
		2294
		2295	if ($@) {
		2296	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2297	LOG llevError | logBacktrace, Carp::longmess $@;
1899	} or	2298	}
1900	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1901		2299
		2300	if ($gen == $self->{_goto_generation}) {
		2301	delete $self->{_goto_generation};
1902	$self->leave_link ($map, $x, $y);	2302	$self->leave_link ($map, $x, $y);
		2303	}
		2304
		2305	$done->() if $done;
1903	})->prio (1);	2306	})->prio (1);
1904	}	2307	}
1905		2308
1906	=item $player_object->enter_exit ($exit_object)	2309	=item $player_object->enter_exit ($exit_object)
1907		2310
…		…
1946		2349
1947	$rmp->{random_seed} ||= $exit->random_seed;	2350	$rmp->{random_seed} ||= $exit->random_seed;
1948		2351
1949	my $data = cf::to_json $rmp;	2352	my $data = cf::to_json $rmp;
1950	my $md5 = Digest::MD5::md5_hex $data;	2353	my $md5 = Digest::MD5::md5_hex $data;
1951	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2354	my $meta = "$RANDOMDIR/$md5.meta";
1952		2355
1953	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2356	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1954	aio_write $fh, 0, (length $data), $data, 0;	2357	aio_write $fh, 0, (length $data), $data, 0;
1955	undef $fh;	2358	undef $fh;
1956	aio_rename "$meta~", $meta;	2359	aio_rename "$meta~", $meta;
…		…
1965		2368
1966	return unless $self->type == cf::PLAYER;	2369	return unless $self->type == cf::PLAYER;
1967		2370
1968	if ($exit->slaying eq "/!") {	2371	if ($exit->slaying eq "/!") {
1969	#TODO: this should de-fi-ni-te-ly not be a sync-job	2372	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2373	# the problem is that $exit might not survive long enough
		2374	# so it needs to be done right now, right here
1970	cf::sync_job { prepare_random_map $exit };	2375	cf::sync_job { prepare_random_map $exit };
1971	}	2376	}
1972		2377
1973	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2378	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1974	my $hp = $exit->stats->hp;	2379	my $hp = $exit->stats->hp;
1975	my $sp = $exit->stats->sp;	2380	my $sp = $exit->stats->sp;
1976		2381
1977	$self->enter_link;	2382	$self->enter_link;
		2383
		2384	# if exit is damned, update players death & WoR home-position
		2385	$self->contr->savebed ($slaying, $hp, $sp)
		2386	if $exit->flag (FLAG_DAMNED);
1978		2387
1979	(async {	2388	(async {
1980	$self->deactivate_recursive; # just to be sure	2389	$self->deactivate_recursive; # just to be sure
1981	unless (eval {	2390	unless (eval {
1982	$self->goto ($slaying, $hp, $sp);	2391	$self->goto ($slaying, $hp, $sp);
1983		2392
1984	1;	2393	1;
1985	}) {	2394	}) {
1986	$self->message ("Something went wrong deep within the crossfire server. "	2395	$self->message ("Something went wrong deep within the crossfire server. "
1987	. "I'll try to bring you back to the map you were before. "	2396	. "I'll try to bring you back to the map you were before. "
1988	. "Please report this to the dungeon master!",	2397	. "Please report this to the dungeon master!",
1989	cf::NDI_UNIQUE | cf::NDI_RED);	2398	cf::NDI_UNIQUE | cf::NDI_RED);
1990		2399
1991	warn "ERROR in enter_exit: $@";	2400	warn "ERROR in enter_exit: $@";
1992	$self->leave_link;	2401	$self->leave_link;
1993	}	2402	}
1994	})->prio (1);	2403	})->prio (1);
…		…
2010		2419
2011	utf8::encode $text;	2420	utf8::encode $text;
2012	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2421	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2013	}	2422	}
2014		2423
		2424	=item $client->send_msg ($color, $type, $msg, [extra...])
		2425
		2426	Send a drawinfo or msg packet to the client, formatting the msg for the
		2427	client if neccessary. C<$type> should be a string identifying the type of
		2428	the message, with C<log> being the default. If C<$color> is negative, suppress
		2429	the message unless the client supports the msg packet.
		2430
		2431	=cut
		2432
		2433	sub cf::client::send_msg {
		2434	my ($self, $color, $type, $msg, @extra) = @_;
		2435
		2436	$msg = $self->pl->expand_cfpod ($msg);
		2437
		2438	return unless @extra || length $msg;
		2439
		2440	if ($self->can_msg) {
		2441	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2442	} else {
		2443	# replace some tags by gcfclient-compatible ones
		2444	for ($msg) {
		2445	1 while
		2446	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2447	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2448	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2449	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2450	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2451	}
		2452
		2453	if ($color >= 0) {
		2454	if (0 && $msg =~ /\[/) {
		2455	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2456	} else {
		2457	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2458	$self->send_packet ("drawinfo $color $msg")
		2459	}
		2460	}
		2461	}
		2462	}
		2463
2015	=item $client->ext_event ($type, %msg)	2464	=item $client->ext_event ($type, %msg)
2016		2465
2017	Sends an exti event to the client.	2466	Sends an ext event to the client.
2018		2467
2019	=cut	2468	=cut
2020		2469
2021	sub cf::client::ext_event($$%) {	2470	sub cf::client::ext_event($$%) {
2022	my ($self, $type, %msg) = @_;	2471	my ($self, $type, %msg) = @_;
2023		2472
		2473	return unless $self->extcmd;
		2474
2024	$msg{msgtype} = "event_$type";	2475	$msg{msgtype} = "event_$type";
2025	$self->send_packet ("ext " . cf::to_json \%msg);	2476	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2026	}	2477	}
2027		2478
2028	=item $success = $client->query ($flags, "text", \&cb)	2479	=item $success = $client->query ($flags, "text", \&cb)
2029		2480
2030	Queues a query to the client, calling the given callback with	2481	Queues a query to the client, calling the given callback with
2031	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2482	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2032	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2483	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2033		2484
2034	Queries can fail, so check the return code. Or don't, as queries will become	2485	Queries can fail, so check the return code. Or don't, as queries will
2035	reliable at some point in the future.	2486	become reliable at some point in the future.
2036		2487
2037	=cut	2488	=cut
2038		2489
2039	sub cf::client::query {	2490	sub cf::client::query {
2040	my ($self, $flags, $text, $cb) = @_;	2491	my ($self, $flags, $text, $cb) = @_;
…		…
2048	utf8::encode $text;	2499	utf8::encode $text;
2049	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2500	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2050		2501
2051	$self->send_packet ($self->{query_queue}[0][0])	2502	$self->send_packet ($self->{query_queue}[0][0])
2052	if @{ $self->{query_queue} } == 1;	2503	if @{ $self->{query_queue} } == 1;
		2504
		2505	1
2053	}	2506	}
2054		2507
2055	cf::client->attach (	2508	cf::client->attach (
		2509	on_connect => sub {
		2510	my ($ns) = @_;
		2511
		2512	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2513	},
2056	on_reply => sub {	2514	on_reply => sub {
2057	my ($ns, $msg) = @_;	2515	my ($ns, $msg) = @_;
2058		2516
2059	# this weird shuffling is so that direct followup queries	2517	# this weird shuffling is so that direct followup queries
2060	# get handled first	2518	# get handled first
…		…
2072	} else {	2530	} else {
2073	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2531	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2074	}	2532	}
2075	}	2533	}
2076	},	2534	},
		2535	on_exticmd => sub {
		2536	my ($ns, $buf) = @_;
		2537
		2538	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2539
		2540	if (ref $msg) {
		2541	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2542	if (my %reply = $cb->($ns, $msg)) {
		2543	$reply{msgid} = $msg->{msgid};
		2544	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2545	}
		2546	}
		2547	} else {
		2548	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2549	}
		2550
		2551	cf::override;
		2552	},
2077	);	2553	);
2078		2554
2079	=item $client->async (\&cb)	2555	=item $client->async (\&cb)
2080		2556
2081	Create a new coroutine, running the specified callback. The coroutine will	2557	Create a new coroutine, running the specified callback. The coroutine will
…		…
2130		2606
2131	=pod	2607	=pod
2132		2608
2133	The following functions and methods are available within a safe environment:	2609	The following functions and methods are available within a safe environment:
2134		2610
2135	cf::object contr pay_amount pay_player map	2611	cf::object
		2612	contr pay_amount pay_player map x y force_find force_add
		2613	insert remove
		2614
2136	cf::object::player player	2615	cf::object::player
2137	cf::player peaceful	2616	player
2138	cf::map trigger	2617
		2618	cf::player
		2619	peaceful
		2620
		2621	cf::map
		2622	trigger
2139		2623
2140	=cut	2624	=cut
2141		2625
2142	for (	2626	for (
2143	["cf::object" => qw(contr pay_amount pay_player map)],	2627	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2628	insert remove)],
2144	["cf::object::player" => qw(player)],	2629	["cf::object::player" => qw(player)],
2145	["cf::player" => qw(peaceful)],	2630	["cf::player" => qw(peaceful)],
2146	["cf::map" => qw(trigger)],	2631	["cf::map" => qw(trigger)],
2147	) {	2632	) {
2148	no strict 'refs';	2633	no strict 'refs';
…		…
2219	=back	2704	=back
2220		2705
2221	=cut	2706	=cut
2222		2707
2223	#############################################################################	2708	#############################################################################
2224
2225	=head2 EXTENSION DATABASE SUPPORT
2226
2227	Crossfire maintains a very simple database for extension use. It can
2228	currently store anything that can be serialised using Storable, which
2229	excludes objects.
2230
2231	The parameter C<$family> should best start with the name of the extension
2232	using it, it should be unique.
2233
2234	=over 4
2235
2236	=item $value = cf::db_get $family => $key
2237
2238	Returns a single value from the database.
2239
2240	=item cf::db_put $family => $key => $value
2241
2242	Stores the given C<$value> in the family.
2243
2244	=cut
2245
2246	our $DB;
2247
2248	sub db_init {
2249	unless ($DB) {
2250	$DB = BDB::db_create $DB_ENV;
2251
2252	cf::sync_job {
2253	eval {
2254	$DB->set_flags (BDB::CHKSUM);
2255
2256	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2257	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2258	cf::cleanup "db_open(db): $!" if $!;
2259	};
2260	cf::cleanup "db_open(db): $@" if $@;
2261	};
2262
2263	my $path = cf::localdir . "/database.pst";
2264	if (stat $path) {
2265	cf::sync_job {
2266	my $pst = Storable::retrieve $path;
2267
2268	cf::db_put (board => data => $pst->{board});
2269	cf::db_put (guildrules => data => $pst->{guildrules});
2270	cf::db_put (rent => balance => $pst->{rent}{balance});
2271	BDB::db_env_txn_checkpoint $DB_ENV;
2272
2273	unlink $path;
2274	};
2275	}
2276	}
2277	}
2278
2279	sub db_get($$) {
2280	my $key = "$_[0]/$_[1]";
2281
2282	cf::sync_job {
2283	BDB::db_get $DB, undef, $key, my $data;
2284
2285	$! ? ()
2286	: Compress::LZF::sthaw $data
2287	}
2288	}
2289
2290	sub db_put($$$) {
2291	BDB::dbreq_pri 4;
2292	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2293	}
2294
2295	#############################################################################
2296	# the server's init and main functions	2709	# the server's init and main functions
2297		2710
2298	sub load_facedata {	2711	sub load_facedata($) {
2299	my $path = sprintf "%s/facedata", cf::datadir;	2712	my ($path) = @_;
2300		2713
2301	warn "loading facedata from $path\n";	2714	warn "loading facedata from $path\n";
2302		2715
2303	my $faces;	2716	my $facedata;
2304	0 < aio_load $path, $faces	2717	0 < aio_load $path, $facedata
2305	or die "$path: $!";	2718	or die "$path: $!";
2306		2719
2307	Coro::cede;
2308	$faces = Storable::thaw $faces;	2720	$facedata = Coro::Storable::thaw $facedata;
2309	Coro::cede;
2310		2721
2311	my $meta = delete $faces->{""};
2312	$meta->{version} == 1	2722	$facedata->{version} == 2
2313	or cf::cleanup "$path: version mismatch, cannot proceed.";	2723	or cf::cleanup "$path: version mismatch, cannot proceed.";
2314		2724
		2725	{
		2726	my $faces = $facedata->{faceinfo};
		2727
2315	while (my ($face, $info) = each %$faces) {	2728	while (my ($face, $info) = each %$faces) {
2316	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2729	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2317	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2730	cf::face::set_visibility $idx, $info->{visibility};
		2731	cf::face::set_magicmap $idx, $info->{magicmap};
2318	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2732	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2319	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2733	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2320	Coro::cede;
2321	}
2322		2734
		2735	cf::cede_to_tick;
		2736	}
		2737
2323	while (my ($face, $info) = each %$faces) {	2738	while (my ($face, $info) = each %$faces) {
2324	next unless $info->{smooth};	2739	next unless $info->{smooth};
2325	my $idx = cf::face::find $face	2740	my $idx = cf::face::find $face
2326	or next;	2741	or next;
2327	if (my $smooth = cf::face::find $info->{smooth}) {	2742	if (my $smooth = cf::face::find $info->{smooth}) {
2328	cf::face::set_smooth $idx, $smooth;	2743	cf::face::set_smooth $idx, $smooth;
		2744	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2329	} else {	2745	} else {
2330	warn "smooth face '$info->{smooth}' not found for face '$face'";	2746	warn "smooth face '$info->{smooth}' not found for face '$face'";
2331	}	2747	}
2332	Coro::cede;	2748
		2749	cf::cede_to_tick;
		2750	}
		2751	}
		2752
		2753	{
		2754	my $anims = $facedata->{animinfo};
		2755
		2756	while (my ($anim, $info) = each %$anims) {
		2757	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2758	cf::cede_to_tick;
		2759	}
		2760
		2761	cf::anim::invalidate_all; # d'oh
		2762	}
		2763
		2764	{
		2765	# TODO: for gcfclient pleasure, we should give resources
		2766	# that gcfclient doesn't grok a >10000 face index.
		2767	my $res = $facedata->{resource};
		2768	my $enc = JSON::XS->new->utf8->canonical;
		2769
		2770	while (my ($name, $info) = each %$res) {
		2771	my $meta = $enc->encode ({
		2772	name => $name,
		2773	type => $info->{type},
		2774	copyright => $info->{copyright}, #TODO#
		2775	});
		2776
		2777	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2778
		2779	if ($name =~ /\.jpg$/) {
		2780	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2781	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2782	} else {
		2783	my $data = pack "(w/a*)*", $meta, $info->{data};
		2784	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2785
		2786	cf::face::set_type $idx, 1;
		2787	cf::face::set_data $idx, 0, $data, $chk;
		2788	}
		2789
		2790	cf::cede_to_tick;
		2791	}
2333	}	2792	}
2334		2793
2335	1	2794	1
2336	}	2795	}
2337		2796
		2797	sub reload_regions {
		2798	load_resource_file "$MAPDIR/regions"
		2799	or die "unable to load regions file\n";
		2800
		2801	for (cf::region::list) {
		2802	$_->{match} = qr/$_->{match}/
		2803	if exists $_->{match};
		2804	}
		2805	}
		2806
		2807	sub reload_facedata {
		2808	load_facedata "$DATADIR/facedata"
		2809	or die "unable to load facedata\n";
		2810	}
		2811
		2812	sub reload_archetypes {
		2813	load_resource_file "$DATADIR/archetypes"
		2814	or die "unable to load archetypes\n";
		2815	#d# NEED to laod twice to resolve forward references
		2816	# this really needs to be done in an extra post-pass
		2817	# (which needs to be synchronous, so solve it differently)
		2818	load_resource_file "$DATADIR/archetypes"
		2819	or die "unable to load archetypes\n";
		2820	}
		2821
		2822	sub reload_treasures {
		2823	load_resource_file "$DATADIR/treasures"
		2824	or die "unable to load treasurelists\n";
		2825	}
		2826
2338	sub reload_resources {	2827	sub reload_resources {
2339	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2828	warn "reloading resource files...\n";
2340	or die "unable to load regions file\n";#d#	2829
		2830	reload_regions;
2341	load_facedata	2831	reload_facedata;
2342	or die "unable to load facedata\n";#d#	2832	#reload_archetypes;#d#
		2833	reload_archetypes;
		2834	reload_treasures;
		2835
		2836	warn "finished reloading resource files\n";
2343	}	2837	}
2344		2838
2345	sub init {	2839	sub init {
2346	reload_resources;	2840	reload_resources;
2347	}	2841	}
2348		2842
2349	sub cfg_load {	2843	sub cfg_load {
2350	open my $fh, "<:utf8", cf::confdir . "/config"	2844	open my $fh, "<:utf8", "$CONFDIR/config"
2351	or return;	2845	or return;
2352		2846
2353	local $/;	2847	local $/;
2354	*CFG = YAML::Syck::Load <$fh>;	2848	*CFG = YAML::Syck::Load <$fh>;
2355		2849
…		…
2400	},	2894	},
2401	);	2895	);
2402	}	2896	}
2403	}	2897	}
2404		2898
		2899	sub write_runtime {
		2900	my $runtime = "$LOCALDIR/runtime";
		2901
		2902	# first touch the runtime file to show we are still running:
		2903	# the fsync below can take a very very long time.
		2904
		2905	IO::AIO::aio_utime $runtime, undef, undef;
		2906
		2907	my $guard = cf::lock_acquire "write_runtime";
		2908
		2909	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2910	or return;
		2911
		2912	my $value = $cf::RUNTIME + 90 + 10;
		2913	# 10 is the runtime save interval, for a monotonic clock
		2914	# 60 allows for the watchdog to kill the server.
		2915
		2916	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2917	and return;
		2918
		2919	# always fsync - this file is important
		2920	aio_fsync $fh
		2921	and return;
		2922
		2923	# touch it again to show we are up-to-date
		2924	aio_utime $fh, undef, undef;
		2925
		2926	close $fh
		2927	or return;
		2928
		2929	aio_rename "$runtime~", $runtime
		2930	and return;
		2931
		2932	warn "runtime file written.\n";
		2933
		2934	1
		2935	}
		2936
2405	sub emergency_save() {	2937	sub emergency_save() {
2406	my $freeze_guard = cf::freeze_mainloop;	2938	my $freeze_guard = cf::freeze_mainloop;
2407		2939
2408	warn "enter emergency perl save\n";	2940	warn "enter emergency perl save\n";
2409		2941
…		…
2440		2972
2441	warn Carp::longmess "post_cleanup backtrace"	2973	warn Carp::longmess "post_cleanup backtrace"
2442	if $make_core;	2974	if $make_core;
2443	}	2975	}
2444		2976
2445	sub reload() {	2977	sub do_reload_perl() {
2446	# can/must only be called in main	2978	# can/must only be called in main
2447	if ($Coro::current != $Coro::main) {	2979	if ($Coro::current != $Coro::main) {
2448	warn "can only reload from main coroutine";	2980	warn "can only reload from main coroutine";
2449	return;	2981	return;
2450	}	2982	}
…		…
2484	%EXT_CORO = ();	3016	%EXT_CORO = ();
2485		3017
2486	warn "removing commands";	3018	warn "removing commands";
2487	%COMMAND = ();	3019	%COMMAND = ();
2488		3020
2489	warn "removing ext commands";	3021	warn "removing ext/exti commands";
2490	%EXTCMD = ();	3022	%EXTCMD = ();
		3023	%EXTICMD = ();
2491		3024
2492	warn "unloading/nuking all extensions";	3025	warn "unloading/nuking all extensions";
2493	for my $pkg (@EXTS) {	3026	for my $pkg (@EXTS) {
2494	warn "... unloading $pkg";	3027	warn "... unloading $pkg";
2495		3028
…		…
2525	Symbol::delete_package "safe::$_"	3058	Symbol::delete_package "safe::$_"
2526	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3059	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2527		3060
2528	warn "unloading cf.pm \"a bit\"";	3061	warn "unloading cf.pm \"a bit\"";
2529	delete $INC{"cf.pm"};	3062	delete $INC{"cf.pm"};
		3063	delete $INC{"cf/pod.pm"};
2530		3064
2531	# don't, removes xs symbols, too,	3065	# don't, removes xs symbols, too,
2532	# and global variables created in xs	3066	# and global variables created in xs
2533	#Symbol::delete_package __PACKAGE__;	3067	#Symbol::delete_package __PACKAGE__;
2534		3068
…		…
2549	warn "reattaching attachments to maps";	3083	warn "reattaching attachments to maps";
2550	reattach $_ for values %MAP;	3084	reattach $_ for values %MAP;
2551	warn "reattaching attachments to players";	3085	warn "reattaching attachments to players";
2552	reattach $_ for values %PLAYER;	3086	reattach $_ for values %PLAYER;
2553		3087
2554	warn "loading reloadable resources";
2555	reload_resources;
2556
2557	warn "leaving sync_job";	3088	warn "leaving sync_job";
2558		3089
2559	1	3090	1
2560	} or do {	3091	} or do {
2561	warn $@;	3092	warn $@;
…		…
2566	warn "reloaded";	3097	warn "reloaded";
2567	};	3098	};
2568		3099
2569	our $RELOAD_WATCHER; # used only during reload	3100	our $RELOAD_WATCHER; # used only during reload
2570		3101
		3102	sub reload_perl() {
		3103	# doing reload synchronously and two reloads happen back-to-back,
		3104	# coro crashes during coro_state_free->destroy here.
		3105
		3106	$RELOAD_WATCHER ||= Event->timer (
		3107	reentrant => 0,
		3108	after => 0,
		3109	data => WF_AUTOCANCEL,
		3110	cb => sub {
		3111	do_reload_perl;
		3112	undef $RELOAD_WATCHER;
		3113	},
		3114	);
		3115	}
		3116
2571	register_command "reload" => sub {	3117	register_command "reload" => sub {
2572	my ($who, $arg) = @_;	3118	my ($who, $arg) = @_;
2573		3119
2574	if ($who->flag (FLAG_WIZ)) {	3120	if ($who->flag (FLAG_WIZ)) {
2575	$who->message ("reloading server.");	3121	$who->message ("reloading server.");
2576		3122	async { reload_perl };
2577	# doing reload synchronously and two reloads happen back-to-back,
2578	# coro crashes during coro_state_free->destroy here.
2579
2580	$RELOAD_WATCHER ||= Event->timer (
2581	reentrant => 0,
2582	after => 0,
2583	data => WF_AUTOCANCEL,
2584	cb => sub {
2585	reload;
2586	undef $RELOAD_WATCHER;
2587	},
2588	);
2589	}	3123	}
2590	};	3124	};
2591		3125
2592	unshift @INC, $LIBDIR;	3126	unshift @INC, $LIBDIR;
2593		3127
2594	my $bug_warning = 0;	3128	my $bug_warning = 0;
2595		3129
		3130	our @WAIT_FOR_TICK;
		3131	our @WAIT_FOR_TICK_BEGIN;
		3132
		3133	sub wait_for_tick {
		3134	return unless $TICK_WATCHER->is_active;
		3135	return if $Coro::current == $Coro::main;
		3136
		3137	my $signal = new Coro::Signal;
		3138	push @WAIT_FOR_TICK, $signal;
		3139	$signal->wait;
		3140	}
		3141
		3142	sub wait_for_tick_begin {
		3143	return unless $TICK_WATCHER->is_active;
		3144	return if $Coro::current == $Coro::main;
		3145
		3146	my $signal = new Coro::Signal;
		3147	push @WAIT_FOR_TICK_BEGIN, $signal;
		3148	$signal->wait;
		3149	}
		3150
		3151	my $min = 1e6;#d#
		3152	my $avg = 10;
2596	$TICK_WATCHER = Event->timer (	3153	$TICK_WATCHER = Event->timer (
2597	reentrant => 0,	3154	reentrant => 0,
2598	parked => 1,	3155	parked => 1,
2599	prio => 0,	3156	prio => 0,
2600	at => $NEXT_TICK || $TICK,	3157	at => $NEXT_TICK || $TICK,
…		…
2604	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3161	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2605	unless ++$bug_warning > 10;	3162	unless ++$bug_warning > 10;
2606	return;	3163	return;
2607	}	3164	}
2608		3165
2609	$NOW = Event::time;	3166	$NOW = $tick_start = Event::time;
2610		3167
2611	cf::server_tick; # one server iteration	3168	cf::server_tick; # one server iteration
		3169
		3170	0 && sync_job {#d#
		3171	for(1..10) {
		3172	my $t = Event::time;
		3173	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3174	or die;
		3175
		3176	$map->width (50);
		3177	$map->height (50);
		3178	$map->alloc;
		3179	$map->_load_objects ("/tmp/x.map", 1);
		3180	my $t = Event::time - $t;
		3181
		3182	#next unless $t < 0.0013;#d#
		3183	if ($t < $min) {
		3184	$min = $t;
		3185	}
		3186	$avg = $avg * 0.99 + $t * 0.01;
		3187	}
		3188	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3189	exit 0;
		3190	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3191	};
		3192
2612	$RUNTIME += $TICK;	3193	$RUNTIME += $TICK;
2613	$NEXT_TICK += $TICK;	3194	$NEXT_TICK += $TICK;
2614		3195
2615	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3196	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2616	$NEXT_RUNTIME_WRITE = $NOW + 10;	3197	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2618	write_runtime	3199	write_runtime
2619	or warn "ERROR: unable to write runtime file: $!";	3200	or warn "ERROR: unable to write runtime file: $!";
2620	};	3201	};
2621	}	3202	}
2622		3203
2623	$WAIT_FOR_TICK->broadcast;
2624	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2625
2626	# my $AFTER = Event::time;	3204	# my $AFTER = Event::time;
2627	# warn $AFTER - $NOW;#d#	3205	# warn $AFTER - $NOW;#d#
2628		3206
		3207	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3208	$sig->send;
		3209	}
		3210	while (my $sig = shift @WAIT_FOR_TICK) {
		3211	$sig->send;
		3212	}
		3213
		3214	$NOW = Event::time;
		3215
2629	# if we are delayed by four ticks or more, skip them all	3216	# if we are delayed by four ticks or more, skip them all
2630	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3217	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2631		3218
2632	$TICK_WATCHER->at ($NEXT_TICK);	3219	$TICK_WATCHER->at ($NEXT_TICK);
2633	$TICK_WATCHER->start;	3220	$TICK_WATCHER->start;
		3221
		3222	$LOAD = ($NOW - $tick_start) / $TICK;
		3223	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3224
		3225	_post_tick;
		3226
		3227
2634	},	3228	},
2635	);	3229	);
2636		3230
2637	{	3231	{
2638	BDB::max_poll_time $TICK * 0.1;	3232	BDB::max_poll_time $TICK * 0.1;
…		…
2666		3260
2667	cf::sync_job {	3261	cf::sync_job {
2668	eval {	3262	eval {
2669	BDB::db_env_open	3263	BDB::db_env_open
2670	$DB_ENV,	3264	$DB_ENV,
2671	$BDB_ENV_DIR,	3265	$BDBDIR,
2672	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3266	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2673	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3267	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2674	0666;	3268	0666;
2675		3269
2676	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3270	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2677		3271
2678	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3272	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2679	$DB_ENV->set_lk_detect;	3273	$DB_ENV->set_lk_detect;
2680	};	3274	};
2681		3275
…		…
2697	prio => 6,	3291	prio => 6,
2698	cb => \&IO::AIO::poll_cb,	3292	cb => \&IO::AIO::poll_cb,
2699	);	3293	);
2700	}	3294	}
2701		3295
		3296	my $_log_backtrace;
		3297
		3298	sub _log_backtrace {
		3299	my ($msg, @addr) = @_;
		3300
		3301	$msg =~ s/\n//;
		3302
		3303	# limit the # of concurrent backtraces
		3304	if ($_log_backtrace < 2) {
		3305	++$_log_backtrace;
		3306	async {
		3307	my @bt = fork_call {
		3308	@addr = map { sprintf "%x", $_ } @addr;
		3309	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3310	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3311	or die "addr2line: $!";
		3312
		3313	my @funcs;
		3314	my @res = <$fh>;
		3315	chomp for @res;
		3316	while (@res) {
		3317	my ($func, $line) = splice @res, 0, 2, ();
		3318	push @funcs, "[$func] $line";
		3319	}
		3320
		3321	@funcs
		3322	};
		3323
		3324	LOG llevInfo, "[ABT] $msg\n";
		3325	LOG llevInfo, "[ABT] $_\n" for @bt;
		3326	--$_log_backtrace;
		3327	};
		3328	} else {
		3329	LOG llevInfo, "[ABT] $msg\n";
		3330	LOG llevInfo, "[ABT] [suppressed]\n";
		3331	}
		3332	}
		3333
		3334	# load additional modules
		3335	use cf::pod;
		3336
2702	END { cf::emergency_save }	3337	END { cf::emergency_save }
2703		3338
2704	1	3339	1
2705		3340

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