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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.217 by root, Thu Feb 15 21:07:49 2007 UTC vs.
Revision 1.293 by root, Tue Jul 3 05:14:15 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
		59	our $RELOAD; # number of reloads so far
48	our @EVENT;	60	our @EVENT;
49	our $LIBDIR = datadir . "/ext";
50		61
51	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(!)
52	our $TICK_WATCHER;	75	our $TICK_WATCHER;
53	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	78	our $NEXT_TICK;
56	our $NOW;	79	our $NOW;
…		…
65	our $RUNTIME;	88	our $RUNTIME;
66		89
67	our %PLAYER; # all users	90	our %PLAYER; # all users
68	our %MAP; # all maps	91	our %MAP; # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	92	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		93
76	# 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 ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		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 $tick_start; # for load detecting purposes
		100
79	binmode STDOUT;	101	binmode STDOUT;
80	binmode STDERR;	102	binmode STDERR;
81		103
82	# read virtual server time, if available	104	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
84	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
85	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
86	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
87	}	109	}
88		110
89	mkdir cf::localdir;	111	mkdir $_
90	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
91	mkdir cf::localdir . "/" . cf::tmpdir;
92	mkdir cf::localdir . "/" . cf::uniquedir;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		113
96	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
97		115
98	sub cf::map::normalise;	116	sub cf::map::normalise;
99		117
…		…
110	=item $cf::RUNTIME	128	=item $cf::RUNTIME
111		129
112	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
113	every server tick.	131	every server tick.
114		132
115	=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
116		136
117	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
118	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.
119		141
120	=item $cf::NOW	142	=item $cf::NOW
121		143
122	The time of the last (current) server tick.	144	The time of the last (current) server tick.
123		145
124	=item $cf::TICK	146	=item $cf::TICK
125		147
126	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.
127		159
128	=item %cf::CFG	160	=item %cf::CFG
129		161
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
131	from wherever your confdir points to.	163	from wherever your confdir points to.
132		164
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	165	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		166
135	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
136	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
137	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.
138	window of cpu time available, or simply to synchronise to the server tick.
139		170
140	=back	171	=back
141		172
142	=cut	173	=cut
143		174
144	BEGIN {	175	BEGIN {
145	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	177	my $msg = join "", @_;
147	utf8::encode $msg;
148		178
149	$msg .= "\n"	179	$msg .= "\n"
150	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
151		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
152	LOG llevError, $msg;	185	LOG llevError, $msg;
153	};	186	};
154	}	187	}
155		188
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@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';
161	@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)
162		196
163	# 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
164	# within the Safe compartment.	198	# within the Safe compartment.
165	for my $pkg (qw(	199	for my $pkg (qw(
166	cf::global cf::attachable	200	cf::global cf::attachable
…		…
174	}	208	}
175		209
176	$Event::DIED = sub {	210	$Event::DIED = sub {
177	warn "error in event callback: @_";	211	warn "error in event callback: @_";
178	};	212	};
		213
		214	#############################################################################
179		215
180	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
181		217
182	=over 4	218	=over 4
183		219
…		…
202	$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;
203	$d	239	$d
204	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
205	}	241	}
206		242
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
210		244
211	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
212		246
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
221		248
222	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
223		250
224	=cut	251	=cut
225		252
226	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
228	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
229	}	256	sub from_json ($) { $json_coder->decode ($_[0]) }
230		257
231	=item cf::lock_wait $string	258	=item cf::lock_wait $string
232		259
233	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
234		261
…		…
240	returned.	267	returned.
241		268
242	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
243	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
244		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
245	=cut	276	=cut
246		277
247	our %LOCK;	278	our %LOCK;
248		279
249	sub lock_wait($) {	280	sub lock_wait($) {
…		…
266		297
267	Coro::guard {	298	Coro::guard {
268	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
270	}	301	}
		302	}
		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
271	}	308	}
272		309
273	sub freeze_mainloop {	310	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
275		312
…		…
290		327
291	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
292		329
293	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
294		331
295	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
298		336
299	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
302	fast or be very important.	340	fast or be very important.
…		…
305		343
306	sub sync_job(&) {	344	sub sync_job(&) {
307	my ($job) = @_;	345	my ($job) = @_;
308		346
309	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
310	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
312		352
313	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
314	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
325		365
326	while ($busy) {	366	while ($busy) {
327	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
328	}	368	}
329		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
330	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
331	} else {	378	} else {
332	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
333		380
334	$job->()	381	$job->()
…		…
353	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
354		401
355	$coro	402	$coro
356	}	403	}
357		404
358	sub write_runtime {	405	=item fork_call { }, $args
359	my $runtime = cf::localdir . "/runtime";
360		406
361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
362	or return;	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 $value = $cf::RUNTIME + 90 + 10;	412	=cut
365	# 10 is the runtime save interval, for a monotonic clock
366	# 60 allows for the watchdog to kill the server.
367		413
368	(aio_write $fh, 0, (length $value), $value, 0) <= 0	414	sub fork_call(&@) {
369	and return;	415	my ($cb, @args) = @_;
370		416
371	# always fsync - this file is important	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
372	aio_fsync $fh	418	# or die "socketpair: $!";
373	and return;	419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
374		421
		422	if (my $pid = fork) {
375	close $fh	423	close $fh2;
376	or return;
377		424
378	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
379	and return;	426	$res = Coro::Storable::thaw $res;
380		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
381	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		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 });
382	}	574	}
383		575
384	=back	576	=back
385		577
386	=cut	578	=cut
…		…
393	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")
394	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
395		587
396	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>
397	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
398	crossfire+).	590	Crossfire TRT).
399		591
400	=over 4	592	=over 4
401		593
402	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
403		595
…		…
566	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
567		759
568	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
569	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
570	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
571	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
572		764
573	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
574	my $pkg = shift @arg;	766	my $pkg = shift @arg;
575		767
576	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
605	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
606	}	798	}
607		799
608	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
609	} else {	801	} else {
610	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
611	}	803	}
612		804
613	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
614	}	806	}
615		807
…		…
617	if (ref $_[0]) {	809	if (ref $_[0]) {
618	_object_attach @_;	810	_object_attach @_;
619	} else {	811	} else {
620	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
621	}	813	}
		814	_recalc_want;
622	};	815	};
623		816
624	# all those should be optimised	817	# all those should be optimised
625	sub cf::attachable::detach {	818	sub cf::attachable::detach {
626	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
629	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
630	reattach ($obj);	823	reattach ($obj);
631	} else {	824	} else {
632	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
633	}	826	}
		827	_recalc_want;
634	};	828	};
635		829
636	sub cf::attachable::attached {	830	sub cf::attachable::attached {
637	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
638		832
…		…
811	or return;	1005	or return;
812	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
813	}	1007	}
814		1008
815	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
816	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
817	return ($data, $av);	1011	return ($data, $av);
818	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
819		1019
820	#############################################################################	1020	#############################################################################
821	# command handling &c	1021	# command handling &c
822		1022
823	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
836	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
837	}	1037	}
838		1038
839	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
840		1040
841	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.
842		1046
843	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
844	called.	1048	called.
845		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
846	=cut	1061	=cut
847		1062
848	sub register_extcmd {	1063	sub register_extcmd {
849	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
850		1065
851	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
852	}	1073	}
853		1074
854	cf::player->attach (	1075	cf::player->attach (
855	on_command => sub {	1076	on_command => sub {
856	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
865	cf::override;	1086	cf::override;
866	},	1087	},
867	on_extcmd => sub {	1088	on_extcmd => sub {
868	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
869		1090
870	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
871		1092
872	if (ref $msg) {	1093	if (ref $msg) {
873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
874	if (my %reply = $cb->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
875	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
881		1102
882	cf::override;	1103	cf::override;
883	},	1104	},
884	);	1105	);
885		1106
886	sub load_extension {
887	my ($path) = @_;
888
889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
890	my $base = $1;
891	my $pkg = $1;
892	$pkg =~ s/[^[:word:]]/_/g;
893	$pkg = "ext::$pkg";
894
895	warn "... loading '$path' into '$pkg'\n";
896
897	open my $fh, "<:utf8", $path
898	or die "$path: $!";
899
900	my $source =
901	"package $pkg; use strict; use utf8;\n"
902	. "#line 1 \"$path\"\n{\n"
903	. (do { local $/; <$fh> })
904	. "\n};\n1";
905
906	unless (eval $source) {
907	my $msg = $@ ? "$path: $@\n"
908	: "extension disabled.\n";
909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
910	warn $@;
911	warn "mandatory extension failed to load, exiting.\n";
912	exit 1;
913	}
914	die $@;
915	}
916
917	push @EXTS, $pkg;
918	}
919
920	sub load_extensions {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
921	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
922	next unless -r $ext;	1112	next unless -r $path;
923	eval {	1113
924	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;
925	1	1171	}
926	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
927	}	1177	};
928	}	1178	}
929		1179
930	#############################################################################	1180	#############################################################################
931		1181
		1182	=back
		1183
932	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
933		1185
934	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
935		1187
936	=cut	1188	=cut
…		…
948	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
949		1201
950	=cut	1202	=cut
951		1203
952	sub playerdir($) {	1204	sub playerdir($) {
953	cf::localdir	1205	"$PLAYERDIR/"
954	. "/"
955	. cf::playerdir
956	. "/"
957	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
958	}	1207	}
959		1208
960	sub path($) {	1209	sub path($) {
961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
962		1211
963	(playerdir $login) . "/$login.pl"	1212	(playerdir $login) . "/playerdata"
964	}	1213	}
965		1214
966	sub find_active($) {	1215	sub find_active($) {
967	$cf::PLAYER{$_[0]}	1216	$cf::PLAYER{$_[0]}
968	and $cf::PLAYER{$_[0]}->active	1217	and $cf::PLAYER{$_[0]}->active
…		…
981	my $login = $_[0];	1230	my $login = $_[0];
982		1231
983	my $guard = cf::lock_acquire "user_find:$login";	1232	my $guard = cf::lock_acquire "user_find:$login";
984		1233
985	$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
986	my $pl = load_pl path $login	1242	my $pl = load_pl path $login
987	or return;	1243	or return;
988	$cf::PLAYER{$login} = $pl	1244	$cf::PLAYER{$login} = $pl
989	}	1245	}
990	}	1246	}
…		…
1027		1283
1028	=cut	1284	=cut
1029		1285
1030	sub quit_character {	1286	sub quit_character {
1031	my ($pl) = @_;	1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
1032		1290
1033	$pl->{deny_save} = 1;	1291	$pl->{deny_save} = 1;
1034	$pl->password ("*"); # this should lock out the player until we nuked the dir	1292	$pl->password ("*"); # this should lock out the player until we nuked the dir
1035		1293
1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1041	my $path = playerdir $pl;	1299	my $path = playerdir $pl;
1042	my $temp = "$path~$cf::RUNTIME~deleting~";	1300	my $temp = "$path~$cf::RUNTIME~deleting~";
1043	aio_rename $path, $temp;	1301	aio_rename $path, $temp;
1044	delete $cf::PLAYER{$pl->ob->name};	1302	delete $cf::PLAYER{$pl->ob->name};
1045	$pl->destroy;	1303	$pl->destroy;
		1304
		1305	my $prefix = qr<^~\Q$name\E/>;
		1306
		1307	# nuke player maps
		1308	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1309
1046	IO::AIO::aio_rmtree $temp;	1310	IO::AIO::aio_rmtree $temp;
		1311	}
		1312
		1313	=item $pl->kick
		1314
		1315	Kicks a player out of the game. This destroys the connection.
		1316
		1317	=cut
		1318
		1319	sub kick {
		1320	my ($pl, $kicker) = @_;
		1321
		1322	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1323	$pl->killer ("kicked");
		1324	$pl->ns->destroy;
1047	}	1325	}
1048		1326
1049	=item cf::player::list_logins	1327	=item cf::player::list_logins
1050		1328
1051	Returns am arrayref of all valid playernames in the system, can take a	1329	Returns am arrayref of all valid playernames in the system, can take a
1052	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1053		1331
1054	=cut	1332	=cut
1055		1333
1056	sub list_logins {	1334	sub list_logins {
1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1058	or return [];	1336	or return [];
1059		1337
1060	my @logins;	1338	my @logins;
1061		1339
1062	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1097	}	1375	}
1098		1376
1099	\@paths	1377	\@paths
1100	}	1378	}
1101		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	s/^\s+//;
		1420	s/\s+$//;
		1421
		1422	$_
		1423	}
		1424
		1425	sub hintmode {
		1426	$_[0]{hintmode} = $_[1] if @_ > 1;
		1427	$_[0]{hintmode}
		1428	}
		1429
1102	=item $player->ext_reply ($msgid, $msgtype, %msg)	1430	=item $player->ext_reply ($msgid, %msg)
1103		1431
1104	Sends an ext reply to the player.	1432	Sends an ext reply to the player.
1105		1433
1106	=cut	1434	=cut
1107		1435
1108	sub ext_reply($$$%) {	1436	sub ext_reply($$%) {
1109	my ($self, $id, %msg) = @_;	1437	my ($self, $id, %msg) = @_;
1110		1438
1111	$msg{msgid} = $id;	1439	$msg{msgid} = $id;
1112		1440	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1113	$self->send ("ext " . cf::to_json \%msg);
1114	}	1441	}
1115		1442
1116	package cf;	1443	=item $player->ext_event ($type, %msg)
		1444
		1445	Sends an ext event to the client.
		1446
		1447	=cut
		1448
		1449	sub ext_event($$%) {
		1450	my ($self, $type, %msg) = @_;
		1451
		1452	$self->ns->ext_event ($type, %msg);
		1453	}
		1454
		1455	=head3 cf::region
		1456
		1457	=over 4
		1458
		1459	=cut
		1460
		1461	package cf::region;
		1462
		1463	=item cf::region::find_by_path $path
		1464
		1465	Tries to decuce the likely region for a map knowing only its path.
		1466
		1467	=cut
		1468
		1469	sub find_by_path($) {
		1470	my ($path) = @_;
		1471
		1472	my ($match, $specificity);
		1473
		1474	for my $region (list) {
		1475	if ($region->match && $path =~ $region->match) {
		1476	($match, $specificity) = ($region, $region->specificity)
		1477	if $region->specificity > $specificity;
		1478	}
		1479	}
		1480
		1481	$match
		1482	}
1117		1483
1118	=back	1484	=back
1119
1120		1485
1121	=head3 cf::map	1486	=head3 cf::map
1122		1487
1123	=over 4	1488	=over 4
1124		1489
…		…
1179	my ($self, $merge) = @_;	1544	my ($self, $merge) = @_;
1180		1545
1181	# we have to keep some variables in memory intact	1546	# we have to keep some variables in memory intact
1182	local $self->{path};	1547	local $self->{path};
1183	local $self->{load_path};	1548	local $self->{load_path};
1184	local $self->{deny_save};
1185	local $self->{deny_reset};
1186		1549
1187	$self->SUPER::thawer_merge ($merge);	1550	$self->SUPER::thawer_merge ($merge);
1188	}	1551	}
1189		1552
1190	sub normalise {	1553	sub normalise {
…		…
1262		1625
1263	# the original (read-only) location	1626	# the original (read-only) location
1264	sub load_path {	1627	sub load_path {
1265	my ($self) = @_;	1628	my ($self) = @_;
1266		1629
1267	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1630	"$MAPDIR/$self->{path}.map"
1268	}	1631	}
1269		1632
1270	# the temporary/swap location	1633	# the temporary/swap location
1271	sub save_path {	1634	sub save_path {
1272	my ($self) = @_;	1635	my ($self) = @_;
1273		1636
1274	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1637	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1275	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1638	"$TMPDIR/$path.map"
1276	}	1639	}
1277		1640
1278	# the unique path, undef == no special unique path	1641	# the unique path, undef == no special unique path
1279	sub uniq_path {	1642	sub uniq_path {
1280	my ($self) = @_;	1643	my ($self) = @_;
1281		1644
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1645	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1283	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1646	"$UNIQUEDIR/$path"
1284	}	1647	}
1285		1648
1286	# and all this just because we cannot iterate over	1649	# and all this just because we cannot iterate over
1287	# all maps in C++...	1650	# all maps in C++...
1288	sub change_all_map_light {	1651	sub change_all_map_light {
1289	my ($change) = @_;	1652	my ($change) = @_;
1290		1653
1291	$_->change_map_light ($change)	1654	$_->change_map_light ($change)
1292	for grep $_->outdoor, values %cf::MAP;	1655	for grep $_->outdoor, values %cf::MAP;
		1656	}
		1657
		1658	sub decay_objects {
		1659	my ($self) = @_;
		1660
		1661	return if $self->{deny_reset};
		1662
		1663	$self->do_decay_objects;
1293	}	1664	}
1294		1665
1295	sub unlink_save {	1666	sub unlink_save {
1296	my ($self) = @_;	1667	my ($self) = @_;
1297		1668
…		…
1355	$self->load_header_orig	1726	$self->load_header_orig
1356	or return;	1727	or return;
1357	$self->prepare_orig;	1728	$self->prepare_orig;
1358	}	1729	}
1359		1730
		1731	$self->{deny_reset} = 1
		1732	if $self->no_reset;
		1733
		1734	$self->default_region (cf::region::find_by_path $self->{path})
		1735	unless $self->default_region;
		1736
1360	1	1737	1
1361	}	1738	}
1362		1739
1363	sub find;	1740	sub find;
1364	sub find {	1741	sub find {
…		…
1376	$map->{last_save} = $cf::RUNTIME;	1753	$map->{last_save} = $cf::RUNTIME;
1377		1754
1378	$map->load_header	1755	$map->load_header
1379	or return;	1756	or return;
1380		1757
1381	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1758	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1382	# doing this can freeze the server in a sync job, obviously	1759	# doing this can freeze the server in a sync job, obviously
1383	#$cf::WAIT_FOR_TICK->wait;	1760	#$cf::WAIT_FOR_TICK->wait;
1384	$map->reset;	1761	$map->reset;
1385	undef $guard;	1762	undef $guard;
1386	return find $path;	1763	return find $path;
…		…
1397	my ($self) = @_;	1774	my ($self) = @_;
1398		1775
1399	local $self->{deny_reset} = 1; # loading can take a long time	1776	local $self->{deny_reset} = 1; # loading can take a long time
1400		1777
1401	my $path = $self->{path};	1778	my $path = $self->{path};
		1779
		1780	{
1402	my $guard = cf::lock_acquire "map_load:$path";	1781	my $guard = cf::lock_acquire "map_load:$path";
1403		1782
1404	return if $self->in_memory != cf::MAP_SWAPPED;	1783	return if $self->in_memory != cf::MAP_SWAPPED;
1405		1784
1406	$self->in_memory (cf::MAP_LOADING);	1785	$self->in_memory (cf::MAP_LOADING);
1407		1786
1408	$self->alloc;	1787	$self->alloc;
1409		1788
1410	$self->pre_load;	1789	$self->pre_load;
1411
1412	$self->_load_objects ($self->{load_path}, 1)
1413	or return;
1414
1415	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1416	if delete $self->{load_original};
1417
1418	if (my $uniq = $self->uniq_path) {
1419	utf8::encode $uniq;
1420	if (aio_open $uniq, O_RDONLY, 0) {
1421	$self->clear_unique_items;
1422	$self->_load_objects ($uniq, 0);
1423	}
1424	}
1425
1426	Coro::cede;
1427
1428	# now do the right thing for maps
1429	$self->link_multipart_objects;
1430
1431	unless ($self->{deny_activate}) {
1432	$self->decay_objects;
1433	$self->fix_auto_apply;
1434	$self->update_buttons;
1435	Coro::cede;	1790	Coro::cede;
1436	$self->set_darkness_map;	1791
		1792	$self->_load_objects ($self->{load_path}, 1)
		1793	or return;
		1794
		1795	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1796	if delete $self->{load_original};
		1797
		1798	if (my $uniq = $self->uniq_path) {
		1799	utf8::encode $uniq;
		1800	if (aio_open $uniq, O_RDONLY, 0) {
		1801	$self->clear_unique_items;
		1802	$self->_load_objects ($uniq, 0);
		1803	}
		1804	}
		1805
		1806	Coro::cede;
		1807	# now do the right thing for maps
		1808	$self->link_multipart_objects;
1437	$self->difficulty ($self->estimate_difficulty)	1809	$self->difficulty ($self->estimate_difficulty)
1438	unless $self->difficulty;	1810	unless $self->difficulty;
1439	Coro::cede;	1811	Coro::cede;
		1812
		1813	unless ($self->{deny_activate}) {
		1814	$self->decay_objects;
		1815	$self->fix_auto_apply;
		1816	$self->update_buttons;
		1817	Coro::cede;
		1818	$self->set_darkness_map;
		1819	Coro::cede;
1440	$self->activate;	1820	$self->activate;
		1821	}
		1822
		1823	$self->in_memory (cf::MAP_IN_MEMORY);
1441	}	1824	}
1442		1825
1443	$self->post_load;	1826	$self->post_load;
1444
1445	$self->in_memory (cf::MAP_IN_MEMORY);
1446	}	1827	}
1447		1828
1448	sub customise_for {	1829	sub customise_for {
1449	my ($self, $ob) = @_;	1830	my ($self, $ob) = @_;
1450		1831
1451	return find "~" . $ob->name . "/" . $self->{path}	1832	return find "~" . $ob->name . "/" . $self->{path}
1452	if $self->per_player;	1833	if $self->per_player;
		1834
		1835	# return find "?party/" . $ob->name . "/" . $self->{path}
		1836	# if $self->per_party;
1453		1837
1454	$self	1838	$self
1455	}	1839	}
1456		1840
1457	# find and load all maps in the 3x3 area around a map	1841	# find and load all maps in the 3x3 area around a map
…		…
1568		1952
1569	sub reset_at {	1953	sub reset_at {
1570	my ($self) = @_;	1954	my ($self) = @_;
1571		1955
1572	# TODO: safety, remove and allow resettable per-player maps	1956	# TODO: safety, remove and allow resettable per-player maps
1573	return 1e99 if $self->isa ("ext::map_per_player");#d#
1574	return 1e99 if $self->{deny_reset};	1957	return 1e99 if $self->{deny_reset};
1575		1958
1576	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1959	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1577	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1960	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1578		1961
…		…
1589	my ($self) = @_;	1972	my ($self) = @_;
1590		1973
1591	my $lock = cf::lock_acquire "map_data:$self->{path}";	1974	my $lock = cf::lock_acquire "map_data:$self->{path}";
1592		1975
1593	return if $self->players;	1976	return if $self->players;
1594	return if $self->isa ("ext::map_per_player");#d#
1595		1977
1596	warn "resetting map ", $self->path;#d#	1978	warn "resetting map ", $self->path;
1597		1979
1598	$self->in_memory (cf::MAP_SWAPPED);	1980	$self->in_memory (cf::MAP_SWAPPED);
1599		1981
1600	# need to save uniques path	1982	# need to save uniques path
1601	unless ($self->{deny_save}) {	1983	unless ($self->{deny_save}) {
…		…
1633	$cf::MAP{$self->path} = $self;	2015	$cf::MAP{$self->path} = $self;
1634		2016
1635	$self->reset; # polite request, might not happen	2017	$self->reset; # polite request, might not happen
1636	}	2018	}
1637		2019
		2020	=item $maps = cf::map::tmp_maps
		2021
		2022	Returns an arrayref with all map paths of currently instantiated and saved
		2023	maps. May block.
		2024
		2025	=cut
		2026
		2027	sub tmp_maps() {
		2028	[
		2029	map {
		2030	utf8::decode $_;
		2031	/\.map$/
		2032	? normalise $_
		2033	: ()
		2034	} @{ aio_readdir $TMPDIR or [] }
		2035	]
		2036	}
		2037
		2038	=item $maps = cf::map::random_maps
		2039
		2040	Returns an arrayref with all map paths of currently instantiated and saved
		2041	random maps. May block.
		2042
		2043	=cut
		2044
		2045	sub random_maps() {
		2046	[
		2047	map {
		2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise "?random/$_"
		2051	: ()
		2052	} @{ aio_readdir $RANDOMDIR or [] }
		2053	]
		2054	}
		2055
1638	=item cf::map::unique_maps	2056	=item cf::map::unique_maps
1639		2057
1640	Returns an arrayref of paths of all shared maps that have	2058	Returns an arrayref of paths of all shared maps that have
1641	instantiated unique items. May block.	2059	instantiated unique items. May block.
1642		2060
1643	=cut	2061	=cut
1644		2062
1645	sub unique_maps() {	2063	sub unique_maps() {
1646	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2064	[
1647	or return;	2065	map {
1648
1649	my @paths;
1650
1651	for (@$files) {
1652	utf8::decode $_;	2066	utf8::decode $_;
1653	next if /\.pst$/;	2067	/\.map$/
1654	next unless /^$PATH_SEP/o;	2068	? normalise $_
1655		2069	: ()
1656	push @paths, cf::map::normalise $_;	2070	} @{ aio_readdir $UNIQUEDIR or [] }
1657	}	2071	]
1658
1659	\@paths
1660	}	2072	}
1661		2073
1662	package cf;	2074	package cf;
1663		2075
1664	=back	2076	=back
…		…
1710		2122
1711	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2123	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1712		2124
1713	if ($self->{record_replies}) {	2125	if ($self->{record_replies}) {
1714	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2126	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2127
1715	} else {	2128	} else {
		2129	my $pl = $self->contr;
		2130
		2131	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2132	my $diag = $pl->{npc_dialog};
		2133	$diag->{pl}->ext_reply (
		2134	$diag->{id},
		2135	msgtype => "reply",
		2136	msg => $diag->{pl}->expand_cfpod ($msg),
		2137	add_topics => []
		2138	);
		2139
		2140	} else {
1716	$msg = $npc->name . " says: $msg" if $npc;	2141	$msg = $npc->name . " says: $msg" if $npc;
1717	$self->message ($msg, $flags);	2142	$self->message ($msg, $flags);
		2143	}
1718	}	2144	}
1719	}	2145	}
1720		2146
1721	=item $player_object->may ("access")	2147	=item $player_object->may ("access")
1722		2148
…		…
1770	$self->deactivate_recursive;	2196	$self->deactivate_recursive;
1771		2197
1772	return if UNIVERSAL::isa $self->map, "ext::map_link";	2198	return if UNIVERSAL::isa $self->map, "ext::map_link";
1773		2199
1774	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2200	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1775	if $self->map;	2201	if $self->map && $self->map->{path} ne "{link}";
1776		2202
1777	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2203	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1778	}	2204	}
1779		2205
1780	sub cf::object::player::leave_link {	2206	sub cf::object::player::leave_link {
1781	my ($self, $map, $x, $y) = @_;	2207	my ($self, $map, $x, $y) = @_;
		2208
		2209	return unless $self->contr->active;
1782		2210
1783	my $link_pos = delete $self->{_link_pos};	2211	my $link_pos = delete $self->{_link_pos};
1784		2212
1785	unless ($map) {	2213	unless ($map) {
1786	# restore original map position	2214	# restore original map position
…		…
1809		2237
1810	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2238	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1811	$self->enter_map ($map, $x, $y);	2239	$self->enter_map ($map, $x, $y);
1812	}	2240	}
1813		2241
1814	cf::player->attach (
1815	on_logout => sub {
1816	my ($pl) = @_;
1817
1818	# abort map switching before logout
1819	if ($pl->ob->{_link_pos}) {
1820	cf::sync_job {
1821	$pl->ob->leave_link
1822	};
1823	}
1824	},
1825	on_login => sub {
1826	my ($pl) = @_;
1827
1828	# try to abort aborted map switching on player login :)
1829	# should happen only on crashes
1830	if ($pl->ob->{_link_pos}) {
1831	$pl->ob->enter_link;
1832	(async {
1833	$pl->ob->reply (undef,
1834	"There was an internal problem at your last logout, "
1835	. "the server will try to bring you to your intended destination in a second.",
1836	cf::NDI_RED);
1837	# we need this sleep as the login has a concurrent enter_exit running
1838	# and this sleep increases chances of the player not ending up in scorn
1839	Coro::Timer::sleep 1;
1840	$pl->ob->leave_link;
1841	})->prio (2);
1842	}
1843	},
1844	);
1845
1846	=item $player_object->goto ($path, $x, $y)	2242	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1847		2243
		2244	Moves the player to the given map-path and coordinates by first freezing
		2245	her, loading and preparing them map, calling the provided $check callback
		2246	that has to return the map if sucecssful, and then unfreezes the player on
		2247	the new (success) or old (failed) map position.
		2248
1848	=cut	2249	=cut
		2250
		2251	our $GOTOGEN;
1849		2252
1850	sub cf::object::player::goto {	2253	sub cf::object::player::goto {
1851	my ($self, $path, $x, $y) = @_;	2254	my ($self, $path, $x, $y, $check) = @_;
		2255
		2256	# do generation counting so two concurrent goto's will be executed in-order
		2257	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1852		2258
1853	$self->enter_link;	2259	$self->enter_link;
1854		2260
1855	(async {	2261	(async {
1856	my $map = eval {	2262	my $map = eval {
1857	my $map = cf::map::find $path;	2263	my $map = cf::map::find $path;
		2264
		2265	if ($map) {
1858	$map = $map->customise_for ($self) if $map;	2266	$map = $map->customise_for ($self);
		2267	$map = $check->($map) if $check && $map;
		2268	} else {
		2269	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2270	}
		2271
1859	$map	2272	$map
		2273	};
		2274
		2275	if ($@) {
		2276	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2277	LOG llevError | logBacktrace, Carp::longmess $@;
1860	} or	2278	}
1861	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1862		2279
		2280	if ($gen == $self->{_goto_generation}) {
		2281	delete $self->{_goto_generation};
1863	$self->leave_link ($map, $x, $y);	2282	$self->leave_link ($map, $x, $y);
		2283	}
1864	})->prio (1);	2284	})->prio (1);
1865	}	2285	}
1866		2286
1867	=item $player_object->enter_exit ($exit_object)	2287	=item $player_object->enter_exit ($exit_object)
1868		2288
…		…
1907		2327
1908	$rmp->{random_seed} ||= $exit->random_seed;	2328	$rmp->{random_seed} ||= $exit->random_seed;
1909		2329
1910	my $data = cf::to_json $rmp;	2330	my $data = cf::to_json $rmp;
1911	my $md5 = Digest::MD5::md5_hex $data;	2331	my $md5 = Digest::MD5::md5_hex $data;
1912	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2332	my $meta = "$RANDOMDIR/$md5.meta";
1913		2333
1914	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2334	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1915	aio_write $fh, 0, (length $data), $data, 0;	2335	aio_write $fh, 0, (length $data), $data, 0;
1916	undef $fh;	2336	undef $fh;
1917	aio_rename "$meta~", $meta;	2337	aio_rename "$meta~", $meta;
…		…
1926		2346
1927	return unless $self->type == cf::PLAYER;	2347	return unless $self->type == cf::PLAYER;
1928		2348
1929	if ($exit->slaying eq "/!") {	2349	if ($exit->slaying eq "/!") {
1930	#TODO: this should de-fi-ni-te-ly not be a sync-job	2350	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2351	# the problem is that $exit might not survive long enough
		2352	# so it needs to be done right now, right here
1931	cf::sync_job { prepare_random_map $exit };	2353	cf::sync_job { prepare_random_map $exit };
1932	}	2354	}
1933		2355
1934	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2356	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1935	my $hp = $exit->stats->hp;	2357	my $hp = $exit->stats->hp;
…		…
1943	$self->goto ($slaying, $hp, $sp);	2365	$self->goto ($slaying, $hp, $sp);
1944		2366
1945	1;	2367	1;
1946	}) {	2368	}) {
1947	$self->message ("Something went wrong deep within the crossfire server. "	2369	$self->message ("Something went wrong deep within the crossfire server. "
1948	. "I'll try to bring you back to the map you were before. "	2370	. "I'll try to bring you back to the map you were before. "
1949	. "Please report this to the dungeon master!",	2371	. "Please report this to the dungeon master!",
1950	cf::NDI_UNIQUE | cf::NDI_RED);	2372	cf::NDI_UNIQUE | cf::NDI_RED);
1951		2373
1952	warn "ERROR in enter_exit: $@";	2374	warn "ERROR in enter_exit: $@";
1953	$self->leave_link;	2375	$self->leave_link;
1954	}	2376	}
1955	})->prio (1);	2377	})->prio (1);
…		…
1968		2390
1969	sub cf::client::send_drawinfo {	2391	sub cf::client::send_drawinfo {
1970	my ($self, $text, $flags) = @_;	2392	my ($self, $text, $flags) = @_;
1971		2393
1972	utf8::encode $text;	2394	utf8::encode $text;
1973	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2395	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1974	}	2396	}
1975		2397
		2398	=item $client->send_msg ($color, $type, $msg, [extra...])
		2399
		2400	Send a drawinfo or msg packet to the client, formatting the msg for the
		2401	client if neccessary. C<$type> should be a string identifying the type of
		2402	the message, with C<log> being the default. If C<$color> is negative, suppress
		2403	the message unless the client supports the msg packet.
		2404
		2405	=cut
		2406
		2407	sub cf::client::send_msg {
		2408	my ($self, $color, $type, $msg, @extra) = @_;
		2409
		2410	$msg = $self->pl->expand_cfpod ($msg);
		2411
		2412	if ($self->can_msg) {
		2413	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2414	} else {
		2415	# replace some tags by gcfclient-compatible ones
		2416	for ($msg) {
		2417	1 while
		2418	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2419	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2420	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2421	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2422	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2423	}
		2424
		2425	if ($color >= 0) {
		2426	if (0 && $msg =~ /\[/) {
		2427	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2428	} else {
		2429	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2430	$self->send_packet ("drawinfo $color $msg")
		2431	}
		2432	}
		2433	}
		2434	}
		2435
		2436	=item $client->ext_event ($type, %msg)
		2437
		2438	Sends an ext event to the client.
		2439
		2440	=cut
		2441
		2442	sub cf::client::ext_event($$%) {
		2443	my ($self, $type, %msg) = @_;
		2444
		2445	$msg{msgtype} = "event_$type";
		2446	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2447	}
1976		2448
1977	=item $success = $client->query ($flags, "text", \&cb)	2449	=item $success = $client->query ($flags, "text", \&cb)
1978		2450
1979	Queues a query to the client, calling the given callback with	2451	Queues a query to the client, calling the given callback with
1980	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2452	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1981	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2453	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1982		2454
1983	Queries can fail, so check the return code. Or don't, as queries will become	2455	Queries can fail, so check the return code. Or don't, as queries will
1984	reliable at some point in the future.	2456	become reliable at some point in the future.
1985		2457
1986	=cut	2458	=cut
1987		2459
1988	sub cf::client::query {	2460	sub cf::client::query {
1989	my ($self, $flags, $text, $cb) = @_;	2461	my ($self, $flags, $text, $cb) = @_;
…		…
1997	utf8::encode $text;	2469	utf8::encode $text;
1998	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2470	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1999		2471
2000	$self->send_packet ($self->{query_queue}[0][0])	2472	$self->send_packet ($self->{query_queue}[0][0])
2001	if @{ $self->{query_queue} } == 1;	2473	if @{ $self->{query_queue} } == 1;
		2474
		2475	1
2002	}	2476	}
2003		2477
2004	cf::client->attach (	2478	cf::client->attach (
		2479	on_connect => sub {
		2480	my ($ns) = @_;
		2481
		2482	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2483	},
2005	on_reply => sub {	2484	on_reply => sub {
2006	my ($ns, $msg) = @_;	2485	my ($ns, $msg) = @_;
2007		2486
2008	# this weird shuffling is so that direct followup queries	2487	# this weird shuffling is so that direct followup queries
2009	# get handled first	2488	# get handled first
…		…
2021	} else {	2500	} else {
2022	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2501	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2023	}	2502	}
2024	}	2503	}
2025	},	2504	},
		2505	on_exticmd => sub {
		2506	my ($ns, $buf) = @_;
		2507
		2508	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2509
		2510	if (ref $msg) {
		2511	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2512	if (my %reply = $cb->($ns, $msg)) {
		2513	$reply{msgid} = $msg->{msgid};
		2514	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2515	}
		2516	}
		2517	} else {
		2518	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2519	}
		2520
		2521	cf::override;
		2522	},
2026	);	2523	);
2027		2524
2028	=item $client->async (\&cb)	2525	=item $client->async (\&cb)
2029		2526
2030	Create a new coroutine, running the specified callback. The coroutine will	2527	Create a new coroutine, running the specified callback. The coroutine will
…		…
2077		2574
2078	# here we export the classes and methods available to script code	2575	# here we export the classes and methods available to script code
2079		2576
2080	=pod	2577	=pod
2081		2578
2082	The following fucntions and emthods are available within a safe environment:	2579	The following functions and methods are available within a safe environment:
2083		2580
2084	cf::object contr pay_amount pay_player map	2581	cf::object contr pay_amount pay_player map
2085	cf::object::player player	2582	cf::object::player player
2086	cf::player peaceful	2583	cf::player peaceful
2087	cf::map trigger	2584	cf::map trigger
…		…
2168	=back	2665	=back
2169		2666
2170	=cut	2667	=cut
2171		2668
2172	#############################################################################	2669	#############################################################################
2173
2174	=head2 EXTENSION DATABASE SUPPORT
2175
2176	Crossfire maintains a very simple database for extension use. It can
2177	currently store anything that can be serialised using Storable, which
2178	excludes objects.
2179
2180	The parameter C<$family> should best start with the name of the extension
2181	using it, it should be unique.
2182
2183	=over 4
2184
2185	=item $value = cf::db_get $family => $key
2186
2187	Returns a single value from the database.
2188
2189	=item cf::db_put $family => $key => $value
2190
2191	Stores the given C<$value> in the family.
2192
2193	=cut
2194
2195	our $DB;
2196
2197	sub db_init {
2198	unless ($DB) {
2199	$DB = BDB::db_create $DB_ENV;
2200
2201	cf::sync_job {
2202	eval {
2203	$DB->set_flags (BDB::CHKSUM);
2204
2205	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2206	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2207	cf::cleanup "db_open(db): $!" if $!;
2208	};
2209	cf::cleanup "db_open(db): $@" if $@;
2210	};
2211
2212	my $path = cf::localdir . "/database.pst";
2213	if (stat $path) {
2214	cf::sync_job {
2215	my $pst = Storable::retrieve $path;
2216
2217	cf::db_put (board => data => $pst->{board});
2218	cf::db_put (guildrules => data => $pst->{guildrules});
2219	cf::db_put (rent => balance => $pst->{rent}{balance});
2220	BDB::db_env_txn_checkpoint $DB_ENV;
2221
2222	unlink $path;
2223	};
2224	}
2225	}
2226	}
2227
2228	sub db_get($$) {
2229	my $key = "$_[0]/$_[1]";
2230
2231	cf::sync_job {
2232	BDB::db_get $DB, undef, $key, my $data;
2233
2234	$! ? ()
2235	: Compress::LZF::sthaw $data
2236	}
2237	}
2238
2239	sub db_put($$$) {
2240	BDB::dbreq_pri 4;
2241	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2242	}
2243
2244	#############################################################################
2245	# the server's init and main functions	2670	# the server's init and main functions
2246		2671
2247	sub init_resources {	2672	sub load_facedata($) {
2248	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2673	my ($path) = @_;
		2674
		2675	warn "loading facedata from $path\n";
		2676
		2677	my $facedata;
		2678	0 < aio_load $path, $facedata
		2679	or die "$path: $!";
		2680
		2681	$facedata = Coro::Storable::thaw $facedata;
		2682
		2683	$facedata->{version} == 2
		2684	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2685
		2686	{
		2687	my $faces = $facedata->{faceinfo};
		2688
		2689	while (my ($face, $info) = each %$faces) {
		2690	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2691	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2692	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2693	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2694	Coro::cede;
		2695	}
		2696
		2697	while (my ($face, $info) = each %$faces) {
		2698	next unless $info->{smooth};
		2699	my $idx = cf::face::find $face
		2700	or next;
		2701	if (my $smooth = cf::face::find $info->{smooth}) {
		2702	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2703	} else {
		2704	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2705	}
		2706	Coro::cede;
		2707	}
		2708	}
		2709
		2710	{
		2711	my $anims = $facedata->{animinfo};
		2712
		2713	while (my ($anim, $info) = each %$anims) {
		2714	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2715	Coro::cede;
		2716	}
		2717
		2718	cf::anim::invalidate_all; # d'oh
		2719	}
		2720
		2721	1
		2722	}
		2723
		2724	sub reload_regions {
		2725	load_resource_file "$MAPDIR/regions"
2249	or die "unable to load regions file\n";#d#	2726	or die "unable to load regions file\n";
		2727	}
		2728
		2729	sub reload_facedata {
		2730	load_facedata "$DATADIR/facedata"
		2731	or die "unable to load facedata\n";
		2732	}
		2733
		2734	sub reload_archetypes {
		2735	load_resource_file "$DATADIR/archetypes"
		2736	or die "unable to load archetypes\n";
		2737	#d# NEED to laod twice to resolve forward references
		2738	# this really needs to be done in an extra post-pass
		2739	# (which needs to be synchronous, so solve it differently)
		2740	load_resource_file "$DATADIR/archetypes"
		2741	or die "unable to load archetypes\n";
		2742	}
		2743
		2744	sub reload_treasures {
		2745	load_resource_file "$DATADIR/treasures"
		2746	or die "unable to load treasurelists\n";
		2747	}
		2748
		2749	sub reload_resources {
		2750	warn "reloading resource files...\n";
		2751
		2752	reload_regions;
		2753	reload_facedata;
		2754	#reload_archetypes;#d#
		2755	reload_archetypes;
		2756	reload_treasures;
		2757
		2758	warn "finished reloading resource files\n";
		2759	}
		2760
		2761	sub init {
		2762	reload_resources;
2250	}	2763	}
2251		2764
2252	sub cfg_load {	2765	sub cfg_load {
2253	open my $fh, "<:utf8", cf::confdir . "/config"	2766	open my $fh, "<:utf8", "$CONFDIR/config"
2254	or return;	2767	or return;
2255		2768
2256	local $/;	2769	local $/;
2257	*CFG = YAML::Syck::Load <$fh>;	2770	*CFG = YAML::Syck::Load <$fh>;
2258		2771
…		…
2266	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2779	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2267	and die "WARNING: m(un)lockall failed: $!\n";	2780	and die "WARNING: m(un)lockall failed: $!\n";
2268	};	2781	};
2269	warn $@ if $@;	2782	warn $@ if $@;
2270	}	2783	}
2271	}
2272
2273	sub init {
2274	init_resources;
2275	}	2784	}
2276		2785
2277	sub main {	2786	sub main {
2278	# we must not ever block the main coroutine	2787	# we must not ever block the main coroutine
2279	local $Coro::idle = sub {	2788	local $Coro::idle = sub {
…		…
2307	},	2816	},
2308	);	2817	);
2309	}	2818	}
2310	}	2819	}
2311		2820
		2821	sub write_runtime {
		2822	my $runtime = "$LOCALDIR/runtime";
		2823
		2824	# first touch the runtime file to show we are still running:
		2825	# the fsync below can take a very very long time.
		2826
		2827	IO::AIO::aio_utime $runtime, undef, undef;
		2828
		2829	my $guard = cf::lock_acquire "write_runtime";
		2830
		2831	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2832	or return;
		2833
		2834	my $value = $cf::RUNTIME + 90 + 10;
		2835	# 10 is the runtime save interval, for a monotonic clock
		2836	# 60 allows for the watchdog to kill the server.
		2837
		2838	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2839	and return;
		2840
		2841	# always fsync - this file is important
		2842	aio_fsync $fh
		2843	and return;
		2844
		2845	# touch it again to show we are up-to-date
		2846	aio_utime $fh, undef, undef;
		2847
		2848	close $fh
		2849	or return;
		2850
		2851	aio_rename "$runtime~", $runtime
		2852	and return;
		2853
		2854	warn "runtime file written.\n";
		2855
		2856	1
		2857	}
		2858
2312	sub emergency_save() {	2859	sub emergency_save() {
2313	my $freeze_guard = cf::freeze_mainloop;	2860	my $freeze_guard = cf::freeze_mainloop;
2314		2861
2315	warn "enter emergency perl save\n";	2862	warn "enter emergency perl save\n";
2316		2863
…		…
2347		2894
2348	warn Carp::longmess "post_cleanup backtrace"	2895	warn Carp::longmess "post_cleanup backtrace"
2349	if $make_core;	2896	if $make_core;
2350	}	2897	}
2351		2898
2352	sub reload() {	2899	sub do_reload_perl() {
2353	# can/must only be called in main	2900	# can/must only be called in main
2354	if ($Coro::current != $Coro::main) {	2901	if ($Coro::current != $Coro::main) {
2355	warn "can only reload from main coroutine";	2902	warn "can only reload from main coroutine";
2356	return;	2903	return;
2357	}	2904	}
…		…
2382	Coro::cede;	2929	Coro::cede;
2383	last unless IO::AIO::nreqs || BDB::nreqs;	2930	last unless IO::AIO::nreqs || BDB::nreqs;
2384	warn "iterate...";	2931	warn "iterate...";
2385	}	2932	}
2386		2933
		2934	++$RELOAD;
		2935
2387	warn "cancelling all extension coros";	2936	warn "cancelling all extension coros";
2388	$_->cancel for values %EXT_CORO;	2937	$_->cancel for values %EXT_CORO;
2389	%EXT_CORO = ();	2938	%EXT_CORO = ();
2390		2939
2391	warn "removing commands";	2940	warn "removing commands";
2392	%COMMAND = ();	2941	%COMMAND = ();
2393		2942
2394	warn "removing ext commands";	2943	warn "removing ext/exti commands";
2395	%EXTCMD = ();	2944	%EXTCMD = ();
		2945	%EXTICMD = ();
2396		2946
2397	warn "unloading/nuking all extensions";	2947	warn "unloading/nuking all extensions";
2398	for my $pkg (@EXTS) {	2948	for my $pkg (@EXTS) {
2399	warn "... unloading $pkg";	2949	warn "... unloading $pkg";
2400		2950
…		…
2430	Symbol::delete_package "safe::$_"	2980	Symbol::delete_package "safe::$_"
2431	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2981	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2432		2982
2433	warn "unloading cf.pm \"a bit\"";	2983	warn "unloading cf.pm \"a bit\"";
2434	delete $INC{"cf.pm"};	2984	delete $INC{"cf.pm"};
		2985	delete $INC{"cf/pod.pm"};
2435		2986
2436	# don't, removes xs symbols, too,	2987	# don't, removes xs symbols, too,
2437	# and global variables created in xs	2988	# and global variables created in xs
2438	#Symbol::delete_package __PACKAGE__;	2989	#Symbol::delete_package __PACKAGE__;
2439		2990
…		…
2448		2999
2449	warn "loading extensions";	3000	warn "loading extensions";
2450	cf::load_extensions;	3001	cf::load_extensions;
2451		3002
2452	warn "reattaching attachments to objects/players";	3003	warn "reattaching attachments to objects/players";
2453	_global_reattach;	3004	_global_reattach; # objects, sockets
2454	warn "reattaching attachments to maps";	3005	warn "reattaching attachments to maps";
2455	reattach $_ for values %MAP;	3006	reattach $_ for values %MAP;
2456		3007	warn "reattaching attachments to players";
2457	warn "loading reloadable resources";	3008	reattach $_ for values %PLAYER;
2458	init_resources;
2459		3009
2460	warn "leaving sync_job";	3010	warn "leaving sync_job";
2461		3011
2462	1	3012	1
2463	} or do {	3013	} or do {
…		…
2469	warn "reloaded";	3019	warn "reloaded";
2470	};	3020	};
2471		3021
2472	our $RELOAD_WATCHER; # used only during reload	3022	our $RELOAD_WATCHER; # used only during reload
2473		3023
		3024	sub reload_perl() {
		3025	# doing reload synchronously and two reloads happen back-to-back,
		3026	# coro crashes during coro_state_free->destroy here.
		3027
		3028	$RELOAD_WATCHER ||= Event->timer (
		3029	reentrant => 0,
		3030	after => 0,
		3031	data => WF_AUTOCANCEL,
		3032	cb => sub {
		3033	do_reload_perl;
		3034	undef $RELOAD_WATCHER;
		3035	},
		3036	);
		3037	}
		3038
2474	register_command "reload" => sub {	3039	register_command "reload" => sub {
2475	my ($who, $arg) = @_;	3040	my ($who, $arg) = @_;
2476		3041
2477	if ($who->flag (FLAG_WIZ)) {	3042	if ($who->flag (FLAG_WIZ)) {
2478	$who->message ("reloading server.");	3043	$who->message ("reloading server.");
2479		3044	async { reload_perl };
2480	# doing reload synchronously and two reloads happen back-to-back,
2481	# coro crashes during coro_state_free->destroy here.
2482
2483	$RELOAD_WATCHER ||= Event->timer (
2484	reentrant => 0,
2485	after => 0,
2486	data => WF_AUTOCANCEL,
2487	cb => sub {
2488	reload;
2489	undef $RELOAD_WATCHER;
2490	},
2491	);
2492	}	3045	}
2493	};	3046	};
2494		3047
2495	unshift @INC, $LIBDIR;	3048	unshift @INC, $LIBDIR;
2496		3049
2497	my $bug_warning = 0;	3050	my $bug_warning = 0;
2498		3051
		3052	our @WAIT_FOR_TICK;
		3053	our @WAIT_FOR_TICK_BEGIN;
		3054
		3055	sub wait_for_tick {
		3056	return unless $TICK_WATCHER->is_active;
		3057	return if $Coro::current == $Coro::main;
		3058
		3059	my $signal = new Coro::Signal;
		3060	push @WAIT_FOR_TICK, $signal;
		3061	$signal->wait;
		3062	}
		3063
		3064	sub wait_for_tick_begin {
		3065	return unless $TICK_WATCHER->is_active;
		3066	return if $Coro::current == $Coro::main;
		3067
		3068	my $signal = new Coro::Signal;
		3069	push @WAIT_FOR_TICK_BEGIN, $signal;
		3070	$signal->wait;
		3071	}
		3072
		3073	my $min = 1e6;#d#
		3074	my $avg = 10;
2499	$TICK_WATCHER = Event->timer (	3075	$TICK_WATCHER = Event->timer (
2500	reentrant => 0,	3076	reentrant => 0,
2501	parked => 1,	3077	parked => 1,
2502	prio => 0,	3078	prio => 0,
2503	at => $NEXT_TICK || $TICK,	3079	at => $NEXT_TICK || $TICK,
…		…
2507	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3083	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2508	unless ++$bug_warning > 10;	3084	unless ++$bug_warning > 10;
2509	return;	3085	return;
2510	}	3086	}
2511		3087
2512	$NOW = Event::time;	3088	$NOW = $tick_start = Event::time;
2513		3089
2514	cf::server_tick; # one server iteration	3090	cf::server_tick; # one server iteration
		3091
		3092	0 && sync_job {#d#
		3093	for(1..10) {
		3094	my $t = Event::time;
		3095	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3096	or die;
		3097
		3098	$map->width (50);
		3099	$map->height (50);
		3100	$map->alloc;
		3101	$map->_load_objects ("/tmp/x.map", 1);
		3102	my $t = Event::time - $t;
		3103
		3104	#next unless $t < 0.0013;#d#
		3105	if ($t < $min) {
		3106	$min = $t;
		3107	}
		3108	$avg = $avg * 0.99 + $t * 0.01;
		3109	}
		3110	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3111	exit 0;
		3112	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3113	};
		3114
2515	$RUNTIME += $TICK;	3115	$RUNTIME += $TICK;
2516	$NEXT_TICK += $TICK;	3116	$NEXT_TICK += $TICK;
2517		3117
2518	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3118	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2519	$NEXT_RUNTIME_WRITE = $NOW + 10;	3119	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2521	write_runtime	3121	write_runtime
2522	or warn "ERROR: unable to write runtime file: $!";	3122	or warn "ERROR: unable to write runtime file: $!";
2523	};	3123	};
2524	}	3124	}
2525		3125
2526
2527	$WAIT_FOR_TICK->broadcast;
2528	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2529
2530	# my $AFTER = Event::time;	3126	# my $AFTER = Event::time;
2531	# warn $AFTER - $NOW;#d#	3127	# warn $AFTER - $NOW;#d#
2532		3128
		3129	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3130	$sig->send;
		3131	}
		3132	while (my $sig = shift @WAIT_FOR_TICK) {
		3133	$sig->send;
		3134	}
		3135
		3136	$NOW = Event::time;
		3137
2533	# if we are delayed by four ticks or more, skip them all	3138	# if we are delayed by four ticks or more, skip them all
2534	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3139	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2535		3140
2536	$TICK_WATCHER->at ($NEXT_TICK);	3141	$TICK_WATCHER->at ($NEXT_TICK);
2537	$TICK_WATCHER->start;	3142	$TICK_WATCHER->start;
		3143
		3144	$LOAD = ($NOW - $tick_start) / $TICK;
		3145	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3146
		3147	_post_tick;
		3148
		3149
2538	},	3150	},
2539	);	3151	);
2540		3152
2541	{	3153	{
2542	BDB::max_poll_time $TICK * 0.1;	3154	BDB::max_poll_time $TICK * 0.1;
…		…
2570		3182
2571	cf::sync_job {	3183	cf::sync_job {
2572	eval {	3184	eval {
2573	BDB::db_env_open	3185	BDB::db_env_open
2574	$DB_ENV,	3186	$DB_ENV,
2575	$BDB_ENV_DIR,	3187	$BDBDIR,
2576	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3188	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2577	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3189	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2578	0666;	3190	0666;
2579		3191
2580	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3192	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2581		3193
2582	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3194	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2583	$DB_ENV->set_lk_detect;	3195	$DB_ENV->set_lk_detect;
2584	};	3196	};
2585		3197
…		…
2601	prio => 6,	3213	prio => 6,
2602	cb => \&IO::AIO::poll_cb,	3214	cb => \&IO::AIO::poll_cb,
2603	);	3215	);
2604	}	3216	}
2605		3217
		3218	my $_log_backtrace;
		3219
		3220	sub _log_backtrace {
		3221	my ($msg, @addr) = @_;
		3222
		3223	$msg =~ s/\n//;
		3224
		3225	# limit the # of concurrent backtraces
		3226	if ($_log_backtrace < 2) {
		3227	++$_log_backtrace;
		3228	async {
		3229	my @bt = fork_call {
		3230	@addr = map { sprintf "%x", $_ } @addr;
		3231	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3232	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3233	or die "addr2line: $!";
		3234
		3235	my @funcs;
		3236	my @res = <$fh>;
		3237	chomp for @res;
		3238	while (@res) {
		3239	my ($func, $line) = splice @res, 0, 2, ();
		3240	push @funcs, "[$func] $line";
		3241	}
		3242
		3243	@funcs
		3244	};
		3245
		3246	LOG llevInfo, "[ABT] $msg\n";
		3247	LOG llevInfo, "[ABT] $_\n" for @bt;
		3248	--$_log_backtrace;
		3249	};
		3250	} else {
		3251	LOG llevInfo, "[ABT] $msg\n";
		3252	LOG llevInfo, "[ABT] [suppressed]\n";
		3253	}
		3254	}
		3255
		3256	# load additional modules
		3257	use cf::pod;
		3258
2606	END { cf::emergency_save }	3259	END { cf::emergency_save }
2607		3260
2608	1	3261	1
2609		3262

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