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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.229 by root, Sun Apr 1 00:36:34 2007 UTC vs.
Revision 1.288 by root, Mon Jun 25 07:40:53 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
9	use Event;	10	use Event;
10	use Opcode;	11	use Opcode;
11	use Safe;	12	use Safe;
12	use Safe::Hole;	13	use Safe::Hole;
13		14
14	use Coro 3.52 ();	15	use Coro 3.61 ();
15	use Coro::State;	16	use Coro::State;
		17	use Coro::Handle;
16	use Coro::Event;	18	use Coro::Event;
17	use Coro::Timer;	19	use Coro::Timer;
18	use Coro::Signal;	20	use Coro::Signal;
19	use Coro::Semaphore;	21	use Coro::Semaphore;
20	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
21		24
		25	use JSON::XS 1.4 ();
22	use BDB ();	26	use BDB ();
23	use Data::Dumper;	27	use Data::Dumper;
24	use Digest::MD5;	28	use Digest::MD5;
25	use Fcntl;	29	use Fcntl;
26	use YAML::Syck ();	30	use YAML::Syck ();
…		…
28	use Time::HiRes;	32	use Time::HiRes;
29	use Compress::LZF;	33	use Compress::LZF;
30		34
31	# configure various modules to our taste	35	# configure various modules to our taste
32	#	36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
35		40
36	$Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
37		42
…		…
45	our %COMMAND = ();	50	our %COMMAND = ();
46	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
47		52
48	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
49	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
50	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
51	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
52		58
53	our $RELOAD; # number of reloads so far	59	our $RELOAD; # number of reloads so far
54	our @EVENT;	60	our @EVENT;
55	our $LIBDIR = datadir . "/ext";
56		61
57	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
58	our $TICK_WATCHER;	75	our $TICK_WATCHER;
59	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
61	our $NEXT_TICK;	78	our $NEXT_TICK;
62	our $NOW;	79	our $NOW;
…		…
71	our $RUNTIME;	88	our $RUNTIME;
72		89
73	our %PLAYER; # all users	90	our %PLAYER; # all users
74	our %MAP; # all maps	91	our %MAP; # all maps
75	our $LINK_MAP; # the special {link} map, which is always available	92	our $LINK_MAP; # the special {link} map, which is always available
76	our $RANDOM_MAPS = cf::localdir . "/random";
77	our $BDB_ENV_DIR = cf::localdir . "/db";
78
79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
81		93
82	# used to convert map paths into valid unix filenames by replacing / by ∕	94	# used to convert map paths into valid unix filenames by replacing / by ∕
83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
84		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
		100
85	binmode STDOUT;	101	binmode STDOUT;
86	binmode STDERR;	102	binmode STDERR;
87		103
88	# read virtual server time, if available	104	# read virtual server time, if available
89	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
90	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
91	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
92	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
93	}	109	}
94		110
95	mkdir cf::localdir;	111	mkdir $_
96	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
97	mkdir cf::localdir . "/" . cf::tmpdir;
98	mkdir cf::localdir . "/" . cf::uniquedir;
99	mkdir $RANDOM_MAPS;
100	mkdir $BDB_ENV_DIR;
101		113
102	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
103		115
104	sub cf::map::normalise;	116	sub cf::map::normalise;
105		117
…		…
116	=item $cf::RUNTIME	128	=item $cf::RUNTIME
117		129
118	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
119	every server tick.	131	every server tick.
120		132
121	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
122		136
123	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
124	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
125		141
126	=item $cf::NOW	142	=item $cf::NOW
127		143
128	The time of the last (current) server tick.	144	The time of the last (current) server tick.
129		145
130	=item $cf::TICK	146	=item $cf::TICK
131		147
132	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
133		159
134	=item %cf::CFG	160	=item %cf::CFG
135		161
136	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
137	from wherever your confdir points to.	163	from wherever your confdir points to.
138		164
139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	165	=item cf::wait_for_tick, cf::wait_for_tick_begin
140		166
141	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
142	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	168	returns directly I<after> the tick processing (and consequently, can only wake one process
143	processing has been done. Call C<< ->wait >> on them to maximise the	169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
144	window of cpu time available, or simply to synchronise to the server tick.
145		170
146	=back	171	=back
147		172
148	=cut	173	=cut
149		174
150	BEGIN {	175	BEGIN {
151	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
152	my $msg = join "", @_;	177	my $msg = join "", @_;
153	utf8::encode $msg;
154		178
155	$msg .= "\n"	179	$msg .= "\n"
156	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
157		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
158	LOG llevError, $msg;	185	LOG llevError, $msg;
159	};	186	};
160	}	187	}
161		188
162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
164	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
165	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
166	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
167	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
168		196
169	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
170	# within the Safe compartment.	198	# within the Safe compartment.
171	for my $pkg (qw(	199	for my $pkg (qw(
172	cf::global cf::attachable	200	cf::global cf::attachable
…		…
180	}	208	}
181		209
182	$Event::DIED = sub {	210	$Event::DIED = sub {
183	warn "error in event callback: @_";	211	warn "error in event callback: @_";
184	};	212	};
		213
		214	#############################################################################
185		215
186	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
187		217
188	=over 4	218	=over 4
189		219
…		…
208	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
209	$d	239	$d
210	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
211	}	241	}
212		242
213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
214
215	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
216		244
217	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
218		246
219	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
220		248
221	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
		250
		251	=cut
		252
		253	our $json_coder = JSON::XS->new->convert_blessed->utf8->max_size (1e6); # accept ~1mb max
		254
		255	sub to_json ($) { $json_coder->encode ($_[0]) }
		256	sub from_json ($) { $json_coder->decode ($_[0]) }
222		257
223	=item cf::lock_wait $string	258	=item cf::lock_wait $string
224		259
225	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
226		261
…		…
232	returned.	267	returned.
233		268
234	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
235	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
236		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
237	=cut	276	=cut
238		277
239	our %LOCK;	278	our %LOCK;
240		279
241	sub lock_wait($) {	280	sub lock_wait($) {
…		…
258		297
259	Coro::guard {	298	Coro::guard {
260	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
261	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
262	}	301	}
		302	}
		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
263	}	308	}
264		309
265	sub freeze_mainloop {	310	sub freeze_mainloop {
266	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
267		312
…		…
282		327
283	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
284		329
285	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
286		331
287	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
290		336
291	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
294	fast or be very important.	340	fast or be very important.
…		…
297		343
298	sub sync_job(&) {	344	sub sync_job(&) {
299	my ($job) = @_;	345	my ($job) = @_;
300		346
301	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
302	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
304		352
305	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
317		365
318	while ($busy) {	366	while ($busy) {
319	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
320	}	368	}
321		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
		376
322	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
323	} else {	378	} else {
324	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
325		380
326	$job->()	381	$job->()
…		…
345	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
346		401
347	$coro	402	$coro
348	}	403	}
349		404
350	sub write_runtime {	405	=item fork_call { }, $args
351	my $guard = cf::lock_acquire "write_runtime";
352		406
353	my $runtime = cf::localdir . "/runtime";	407	Executes the given code block with the given arguments in a seperate
		408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
354		411
355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	412	=cut
356	or return;
357		413
358	my $value = $cf::RUNTIME + 90 + 10;	414	sub fork_call(&@) {
359	# 10 is the runtime save interval, for a monotonic clock	415	my ($cb, @args) = @_;
360	# 60 allows for the watchdog to kill the server.
361		416
362	(aio_write $fh, 0, (length $value), $value, 0) <= 0	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
363	and return;	418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
364		421
365	# always fsync - this file is important	422	if (my $pid = fork) {
366	aio_fsync $fh
367	and return;
368
369	close $fh	423	close $fh2;
370	or return;
371		424
372	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
373	and return;	426	$res = Coro::Storable::thaw $res;
374		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
375	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
		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 });
376	}	574	}
377		575
378	=back	576	=back
379		577
380	=cut	578	=cut
…		…
387	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")
388	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
389		587
390	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>
391	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
392	crossfire+).	590	Crossfire TRT).
393		591
394	=over 4	592	=over 4
395		593
396	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
397		595
…		…
560	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
561		759
562	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
563	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
564	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
565	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
566		764
567	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
568	my $pkg = shift @arg;	766	my $pkg = shift @arg;
569		767
570	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
599	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
600	}	798	}
601		799
602	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
603	} else {	801	} else {
604	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
605	}	803	}
606		804
607	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
608	}	806	}
609		807
…		…
611	if (ref $_[0]) {	809	if (ref $_[0]) {
612	_object_attach @_;	810	_object_attach @_;
613	} else {	811	} else {
614	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
615	}	813	}
		814	_recalc_want;
616	};	815	};
617		816
618	# all those should be optimised	817	# all those should be optimised
619	sub cf::attachable::detach {	818	sub cf::attachable::detach {
620	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
623	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
624	reattach ($obj);	823	reattach ($obj);
625	} else {	824	} else {
626	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
627	}	826	}
		827	_recalc_want;
628	};	828	};
629		829
630	sub cf::attachable::attached {	830	sub cf::attachable::attached {
631	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
632		832
…		…
805	or return;	1005	or return;
806	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
807	}	1007	}
808		1008
809	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
810	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
811	return ($data, $av);	1011	return ($data, $av);
812	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
813		1019
814	#############################################################################	1020	#############################################################################
815	# command handling &c	1021	# command handling &c
816		1022
817	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
830	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
831	}	1037	}
832		1038
833	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
834		1040
835	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.
836		1046
837	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
838	called.	1048	called.
839		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
840	=cut	1061	=cut
841		1062
842	sub register_extcmd {	1063	sub register_extcmd {
843	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
844		1065
845	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
846	}	1073	}
847		1074
848	cf::player->attach (	1075	cf::player->attach (
849	on_command => sub {	1076	on_command => sub {
850	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
875		1102
876	cf::override;	1103	cf::override;
877	},	1104	},
878	);	1105	);
879		1106
880	sub load_extension {
881	my ($path) = @_;
882
883	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
884	my $base = $1;
885	my $pkg = $1;
886	$pkg =~ s/[^[:word:]]/_/g;
887	$pkg = "ext::$pkg";
888
889	warn "... loading '$path' into '$pkg'\n";
890
891	open my $fh, "<:utf8", $path
892	or die "$path: $!";
893
894	my $source =
895	"package $pkg; use strict; use utf8;\n"
896	. "#line 1 \"$path\"\n{\n"
897	. (do { local $/; <$fh> })
898	. "\n};\n1";
899
900	unless (eval $source) {
901	my $msg = $@ ? "$path: $@\n"
902	: "extension disabled.\n";
903	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
904	warn $@;
905	warn "mandatory extension failed to load, exiting.\n";
906	exit 1;
907	}
908	die $@;
909	}
910
911	push @EXTS, $pkg;
912	}
913
914	sub load_extensions {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
915	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
916	next unless -r $ext;	1112	next unless -r $path;
917	eval {	1113
918	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;
919	1	1171	}
920	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
921	}	1177	};
922	}	1178	}
923		1179
924	#############################################################################	1180	#############################################################################
925		1181
		1182	=back
		1183
926	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
927		1185
928	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
929		1187
930	=cut	1188	=cut
…		…
942	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
943		1201
944	=cut	1202	=cut
945		1203
946	sub playerdir($) {	1204	sub playerdir($) {
947	cf::localdir	1205	"$PLAYERDIR/"
948	. "/"
949	. cf::playerdir
950	. "/"
951	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
952	}	1207	}
953		1208
954	sub path($) {	1209	sub path($) {
955	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
956		1211
957	(playerdir $login) . "/$login.pl"	1212	(playerdir $login) . "/playerdata"
958	}	1213	}
959		1214
960	sub find_active($) {	1215	sub find_active($) {
961	$cf::PLAYER{$_[0]}	1216	$cf::PLAYER{$_[0]}
962	and $cf::PLAYER{$_[0]}->active	1217	and $cf::PLAYER{$_[0]}->active
…		…
975	my $login = $_[0];	1230	my $login = $_[0];
976		1231
977	my $guard = cf::lock_acquire "user_find:$login";	1232	my $guard = cf::lock_acquire "user_find:$login";
978		1233
979	$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
980	my $pl = load_pl path $login	1242	my $pl = load_pl path $login
981	or return;	1243	or return;
982	$cf::PLAYER{$login} = $pl	1244	$cf::PLAYER{$login} = $pl
983	}	1245	}
984	}	1246	}
…		…
1068	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1069		1331
1070	=cut	1332	=cut
1071		1333
1072	sub list_logins {	1334	sub list_logins {
1073	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1074	or return [];	1336	or return [];
1075		1337
1076	my @logins;	1338	my @logins;
1077		1339
1078	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1113	}	1375	}
1114		1376
1115	\@paths	1377	\@paths
1116	}	1378	}
1117		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<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1406
		1407	# create single paragraphs (very hackish)
		1408	s/(?<=\S)\n(?=\w)/ /g;
		1409
		1410	$_
		1411	}
		1412
1118	=item $player->ext_reply ($msgid, $msgtype, %msg)	1413	=item $player->ext_reply ($msgid, %msg)
1119		1414
1120	Sends an ext reply to the player.	1415	Sends an ext reply to the player.
1121		1416
1122	=cut	1417	=cut
1123		1418
1124	sub ext_reply($$$%) {	1419	sub ext_reply($$%) {
1125	my ($self, $id, %msg) = @_;	1420	my ($self, $id, %msg) = @_;
1126		1421
1127	$msg{msgid} = $id;	1422	$msg{msgid} = $id;
1128
1129	$self->send ("ext " . cf::to_json \%msg);	1423	$self->send ("ext " . cf::to_json \%msg);
1130	}	1424	}
1131		1425
1132	package cf;	1426	=item $player->ext_event ($type, %msg)
		1427
		1428	Sends an ext event to the client.
		1429
		1430	=cut
		1431
		1432	sub ext_event($$%) {
		1433	my ($self, $type, %msg) = @_;
		1434
		1435	$self->ns->ext_event ($type, %msg);
		1436	}
		1437
		1438	=head3 cf::region
		1439
		1440	=over 4
		1441
		1442	=cut
		1443
		1444	package cf::region;
		1445
		1446	=item cf::region::find_by_path $path
		1447
		1448	Tries to decuce the likely region for a map knowing only its path.
		1449
		1450	=cut
		1451
		1452	sub find_by_path($) {
		1453	my ($path) = @_;
		1454
		1455	my ($match, $specificity);
		1456
		1457	for my $region (list) {
		1458	if ($region->match && $path =~ $region->match) {
		1459	($match, $specificity) = ($region, $region->specificity)
		1460	if $region->specificity > $specificity;
		1461	}
		1462	}
		1463
		1464	$match
		1465	}
1133		1466
1134	=back	1467	=back
1135
1136		1468
1137	=head3 cf::map	1469	=head3 cf::map
1138		1470
1139	=over 4	1471	=over 4
1140		1472
…		…
1195	my ($self, $merge) = @_;	1527	my ($self, $merge) = @_;
1196		1528
1197	# we have to keep some variables in memory intact	1529	# we have to keep some variables in memory intact
1198	local $self->{path};	1530	local $self->{path};
1199	local $self->{load_path};	1531	local $self->{load_path};
1200	local $self->{deny_save};
1201	local $self->{deny_reset};
1202		1532
1203	$self->SUPER::thawer_merge ($merge);	1533	$self->SUPER::thawer_merge ($merge);
1204	}	1534	}
1205		1535
1206	sub normalise {	1536	sub normalise {
…		…
1278		1608
1279	# the original (read-only) location	1609	# the original (read-only) location
1280	sub load_path {	1610	sub load_path {
1281	my ($self) = @_;	1611	my ($self) = @_;
1282		1612
1283	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1613	"$MAPDIR/$self->{path}.map"
1284	}	1614	}
1285		1615
1286	# the temporary/swap location	1616	# the temporary/swap location
1287	sub save_path {	1617	sub save_path {
1288	my ($self) = @_;	1618	my ($self) = @_;
1289		1619
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1620	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1291	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1621	"$TMPDIR/$path.map"
1292	}	1622	}
1293		1623
1294	# the unique path, undef == no special unique path	1624	# the unique path, undef == no special unique path
1295	sub uniq_path {	1625	sub uniq_path {
1296	my ($self) = @_;	1626	my ($self) = @_;
1297		1627
1298	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1628	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1299	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1629	"$UNIQUEDIR/$path"
1300	}	1630	}
1301		1631
1302	# and all this just because we cannot iterate over	1632	# and all this just because we cannot iterate over
1303	# all maps in C++...	1633	# all maps in C++...
1304	sub change_all_map_light {	1634	sub change_all_map_light {
1305	my ($change) = @_;	1635	my ($change) = @_;
1306		1636
1307	$_->change_map_light ($change)	1637	$_->change_map_light ($change)
1308	for grep $_->outdoor, values %cf::MAP;	1638	for grep $_->outdoor, values %cf::MAP;
		1639	}
		1640
		1641	sub decay_objects {
		1642	my ($self) = @_;
		1643
		1644	return if $self->{deny_reset};
		1645
		1646	$self->do_decay_objects;
1309	}	1647	}
1310		1648
1311	sub unlink_save {	1649	sub unlink_save {
1312	my ($self) = @_;	1650	my ($self) = @_;
1313		1651
…		…
1371	$self->load_header_orig	1709	$self->load_header_orig
1372	or return;	1710	or return;
1373	$self->prepare_orig;	1711	$self->prepare_orig;
1374	}	1712	}
1375		1713
		1714	$self->{deny_reset} = 1
		1715	if $self->no_reset;
		1716
		1717	$self->default_region (cf::region::find_by_path $self->{path})
		1718	unless $self->default_region;
		1719
1376	1	1720	1
1377	}	1721	}
1378		1722
1379	sub find;	1723	sub find;
1380	sub find {	1724	sub find {
…		…
1392	$map->{last_save} = $cf::RUNTIME;	1736	$map->{last_save} = $cf::RUNTIME;
1393		1737
1394	$map->load_header	1738	$map->load_header
1395	or return;	1739	or return;
1396		1740
1397	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1741	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1398	# doing this can freeze the server in a sync job, obviously	1742	# doing this can freeze the server in a sync job, obviously
1399	#$cf::WAIT_FOR_TICK->wait;	1743	#$cf::WAIT_FOR_TICK->wait;
1400	$map->reset;	1744	$map->reset;
1401	undef $guard;	1745	undef $guard;
1402	return find $path;	1746	return find $path;
…		…
1413	my ($self) = @_;	1757	my ($self) = @_;
1414		1758
1415	local $self->{deny_reset} = 1; # loading can take a long time	1759	local $self->{deny_reset} = 1; # loading can take a long time
1416		1760
1417	my $path = $self->{path};	1761	my $path = $self->{path};
		1762
		1763	{
1418	my $guard = cf::lock_acquire "map_load:$path";	1764	my $guard = cf::lock_acquire "map_load:$path";
1419		1765
1420	return if $self->in_memory != cf::MAP_SWAPPED;	1766	return if $self->in_memory != cf::MAP_SWAPPED;
1421		1767
1422	$self->in_memory (cf::MAP_LOADING);	1768	$self->in_memory (cf::MAP_LOADING);
1423		1769
1424	$self->alloc;	1770	$self->alloc;
1425		1771
1426	$self->pre_load;	1772	$self->pre_load;
1427
1428	$self->_load_objects ($self->{load_path}, 1)
1429	or return;
1430
1431	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1432	if delete $self->{load_original};
1433
1434	if (my $uniq = $self->uniq_path) {
1435	utf8::encode $uniq;
1436	if (aio_open $uniq, O_RDONLY, 0) {
1437	$self->clear_unique_items;
1438	$self->_load_objects ($uniq, 0);
1439	}
1440	}
1441
1442	Coro::cede;
1443
1444	# now do the right thing for maps
1445	$self->link_multipart_objects;
1446
1447	unless ($self->{deny_activate}) {
1448	$self->decay_objects;
1449	$self->fix_auto_apply;
1450	$self->update_buttons;
1451	Coro::cede;	1773	Coro::cede;
1452	$self->set_darkness_map;	1774
		1775	$self->_load_objects ($self->{load_path}, 1)
		1776	or return;
		1777
		1778	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1779	if delete $self->{load_original};
		1780
		1781	if (my $uniq = $self->uniq_path) {
		1782	utf8::encode $uniq;
		1783	if (aio_open $uniq, O_RDONLY, 0) {
		1784	$self->clear_unique_items;
		1785	$self->_load_objects ($uniq, 0);
		1786	}
		1787	}
		1788
		1789	Coro::cede;
		1790	# now do the right thing for maps
		1791	$self->link_multipart_objects;
1453	$self->difficulty ($self->estimate_difficulty)	1792	$self->difficulty ($self->estimate_difficulty)
1454	unless $self->difficulty;	1793	unless $self->difficulty;
1455	Coro::cede;	1794	Coro::cede;
		1795
		1796	unless ($self->{deny_activate}) {
		1797	$self->decay_objects;
		1798	$self->fix_auto_apply;
		1799	$self->update_buttons;
		1800	Coro::cede;
		1801	$self->set_darkness_map;
		1802	Coro::cede;
1456	$self->activate;	1803	$self->activate;
		1804	}
		1805
		1806	$self->in_memory (cf::MAP_IN_MEMORY);
1457	}	1807	}
1458		1808
1459	$self->post_load;	1809	$self->post_load;
1460
1461	$self->in_memory (cf::MAP_IN_MEMORY);
1462	}	1810	}
1463		1811
1464	sub customise_for {	1812	sub customise_for {
1465	my ($self, $ob) = @_;	1813	my ($self, $ob) = @_;
1466		1814
1467	return find "~" . $ob->name . "/" . $self->{path}	1815	return find "~" . $ob->name . "/" . $self->{path}
1468	if $self->per_player;	1816	if $self->per_player;
		1817
		1818	# return find "?party/" . $ob->name . "/" . $self->{path}
		1819	# if $self->per_party;
1469		1820
1470	$self	1821	$self
1471	}	1822	}
1472		1823
1473	# find and load all maps in the 3x3 area around a map	1824	# find and load all maps in the 3x3 area around a map
…		…
1584		1935
1585	sub reset_at {	1936	sub reset_at {
1586	my ($self) = @_;	1937	my ($self) = @_;
1587		1938
1588	# TODO: safety, remove and allow resettable per-player maps	1939	# TODO: safety, remove and allow resettable per-player maps
1589	return 1e99 if $self->isa ("ext::map_per_player");#d#
1590	return 1e99 if $self->{deny_reset};	1940	return 1e99 if $self->{deny_reset};
1591		1941
1592	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1942	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1593	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1943	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1594		1944
…		…
1605	my ($self) = @_;	1955	my ($self) = @_;
1606		1956
1607	my $lock = cf::lock_acquire "map_data:$self->{path}";	1957	my $lock = cf::lock_acquire "map_data:$self->{path}";
1608		1958
1609	return if $self->players;	1959	return if $self->players;
1610	return if $self->isa ("ext::map_per_player");#d#
1611		1960
1612	warn "resetting map ", $self->path;#d#	1961	warn "resetting map ", $self->path;
1613		1962
1614	$self->in_memory (cf::MAP_SWAPPED);	1963	$self->in_memory (cf::MAP_SWAPPED);
1615		1964
1616	# need to save uniques path	1965	# need to save uniques path
1617	unless ($self->{deny_save}) {	1966	unless ($self->{deny_save}) {
…		…
1649	$cf::MAP{$self->path} = $self;	1998	$cf::MAP{$self->path} = $self;
1650		1999
1651	$self->reset; # polite request, might not happen	2000	$self->reset; # polite request, might not happen
1652	}	2001	}
1653		2002
		2003	=item $maps = cf::map::tmp_maps
		2004
		2005	Returns an arrayref with all map paths of currently instantiated and saved
		2006	maps. May block.
		2007
		2008	=cut
		2009
		2010	sub tmp_maps() {
		2011	[
		2012	map {
		2013	utf8::decode $_;
		2014	/\.map$/
		2015	? normalise $_
		2016	: ()
		2017	} @{ aio_readdir $TMPDIR or [] }
		2018	]
		2019	}
		2020
		2021	=item $maps = cf::map::random_maps
		2022
		2023	Returns an arrayref with all map paths of currently instantiated and saved
		2024	random maps. May block.
		2025
		2026	=cut
		2027
		2028	sub random_maps() {
		2029	[
		2030	map {
		2031	utf8::decode $_;
		2032	/\.map$/
		2033	? normalise "?random/$_"
		2034	: ()
		2035	} @{ aio_readdir $RANDOMDIR or [] }
		2036	]
		2037	}
		2038
1654	=item cf::map::unique_maps	2039	=item cf::map::unique_maps
1655		2040
1656	Returns an arrayref of paths of all shared maps that have	2041	Returns an arrayref of paths of all shared maps that have
1657	instantiated unique items. May block.	2042	instantiated unique items. May block.
1658		2043
1659	=cut	2044	=cut
1660		2045
1661	sub unique_maps() {	2046	sub unique_maps() {
1662	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2047	[
1663	or return;	2048	map {
1664
1665	my @paths;
1666
1667	for (@$files) {
1668	utf8::decode $_;	2049	utf8::decode $_;
1669	next if /\.pst$/;	2050	/\.map$/
1670	next unless /^$PATH_SEP/o;	2051	? normalise $_
1671		2052	: ()
1672	push @paths, cf::map::normalise $_;	2053	} @{ aio_readdir $UNIQUEDIR or [] }
1673	}	2054	]
1674
1675	\@paths
1676	}	2055	}
1677		2056
1678	package cf;	2057	package cf;
1679		2058
1680	=back	2059	=back
…		…
1726		2105
1727	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2106	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1728		2107
1729	if ($self->{record_replies}) {	2108	if ($self->{record_replies}) {
1730	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2109	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2110
1731	} else {	2111	} else {
		2112	my $pl = $self->contr;
		2113
		2114	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2115	my $diag = $pl->{npc_dialog};
		2116	$diag->{pl}->ext_reply (
		2117	$diag->{id},
		2118	msgtype => "reply",
		2119	msg => $diag->{pl}->expand_cfpod ($msg),
		2120	add_topics => []
		2121	);
		2122
		2123	} else {
1732	$msg = $npc->name . " says: $msg" if $npc;	2124	$msg = $npc->name . " says: $msg" if $npc;
1733	$self->message ($msg, $flags);	2125	$self->message ($msg, $flags);
		2126	}
1734	}	2127	}
1735	}	2128	}
1736		2129
1737	=item $player_object->may ("access")	2130	=item $player_object->may ("access")
1738		2131
…		…
1786	$self->deactivate_recursive;	2179	$self->deactivate_recursive;
1787		2180
1788	return if UNIVERSAL::isa $self->map, "ext::map_link";	2181	return if UNIVERSAL::isa $self->map, "ext::map_link";
1789		2182
1790	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2183	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1791	if $self->map;	2184	if $self->map && $self->map->{path} ne "{link}";
1792		2185
1793	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2186	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1794	}	2187	}
1795		2188
1796	sub cf::object::player::leave_link {	2189	sub cf::object::player::leave_link {
1797	my ($self, $map, $x, $y) = @_;	2190	my ($self, $map, $x, $y) = @_;
		2191
		2192	return unless $self->contr->active;
1798		2193
1799	my $link_pos = delete $self->{_link_pos};	2194	my $link_pos = delete $self->{_link_pos};
1800		2195
1801	unless ($map) {	2196	unless ($map) {
1802	# restore original map position	2197	# restore original map position
…		…
1825		2220
1826	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2221	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1827	$self->enter_map ($map, $x, $y);	2222	$self->enter_map ($map, $x, $y);
1828	}	2223	}
1829		2224
1830	cf::player->attach (
1831	on_logout => sub {
1832	my ($pl) = @_;
1833
1834	# abort map switching before logout
1835	if ($pl->ob->{_link_pos}) {
1836	cf::sync_job {
1837	$pl->ob->leave_link
1838	};
1839	}
1840	},
1841	on_login => sub {
1842	my ($pl) = @_;
1843
1844	# try to abort aborted map switching on player login :)
1845	# should happen only on crashes
1846	if ($pl->ob->{_link_pos}) {
1847	$pl->ob->enter_link;
1848	(async {
1849	$pl->ob->reply (undef,
1850	"There was an internal problem at your last logout, "
1851	. "the server will try to bring you to your intended destination in a second.",
1852	cf::NDI_RED);
1853	# we need this sleep as the login has a concurrent enter_exit running
1854	# and this sleep increases chances of the player not ending up in scorn
1855	Coro::Timer::sleep 1;
1856	$pl->ob->leave_link;
1857	})->prio (2);
1858	}
1859	},
1860	);
1861
1862	=item $player_object->goto ($path, $x, $y)	2225	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1863		2226
		2227	Moves the player to the given map-path and coordinates by first freezing
		2228	her, loading and preparing them map, calling the provided $check callback
		2229	that has to return the map if sucecssful, and then unfreezes the player on
		2230	the new (success) or old (failed) map position.
		2231
1864	=cut	2232	=cut
		2233
		2234	our $GOTOGEN;
1865		2235
1866	sub cf::object::player::goto {	2236	sub cf::object::player::goto {
1867	my ($self, $path, $x, $y) = @_;	2237	my ($self, $path, $x, $y, $check) = @_;
		2238
		2239	# do generation counting so two concurrent goto's will be executed in-order
		2240	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1868		2241
1869	$self->enter_link;	2242	$self->enter_link;
1870		2243
1871	(async {	2244	(async {
1872	my $map = eval {	2245	my $map = eval {
1873	my $map = cf::map::find $path;	2246	my $map = cf::map::find $path;
		2247
		2248	if ($map) {
1874	$map = $map->customise_for ($self) if $map;	2249	$map = $map->customise_for ($self);
		2250	$map = $check->($map) if $check && $map;
		2251	} else {
		2252	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2253	}
		2254
1875	$map	2255	$map
		2256	};
		2257
		2258	if ($@) {
		2259	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2260	LOG llevError | logBacktrace, Carp::longmess $@;
1876	} or	2261	}
1877	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1878		2262
		2263	if ($gen == $self->{_goto_generation}) {
		2264	delete $self->{_goto_generation};
1879	$self->leave_link ($map, $x, $y);	2265	$self->leave_link ($map, $x, $y);
		2266	}
1880	})->prio (1);	2267	})->prio (1);
1881	}	2268	}
1882		2269
1883	=item $player_object->enter_exit ($exit_object)	2270	=item $player_object->enter_exit ($exit_object)
1884		2271
…		…
1923		2310
1924	$rmp->{random_seed} ||= $exit->random_seed;	2311	$rmp->{random_seed} ||= $exit->random_seed;
1925		2312
1926	my $data = cf::to_json $rmp;	2313	my $data = cf::to_json $rmp;
1927	my $md5 = Digest::MD5::md5_hex $data;	2314	my $md5 = Digest::MD5::md5_hex $data;
1928	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2315	my $meta = "$RANDOMDIR/$md5.meta";
1929		2316
1930	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2317	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1931	aio_write $fh, 0, (length $data), $data, 0;	2318	aio_write $fh, 0, (length $data), $data, 0;
1932	undef $fh;	2319	undef $fh;
1933	aio_rename "$meta~", $meta;	2320	aio_rename "$meta~", $meta;
…		…
1942		2329
1943	return unless $self->type == cf::PLAYER;	2330	return unless $self->type == cf::PLAYER;
1944		2331
1945	if ($exit->slaying eq "/!") {	2332	if ($exit->slaying eq "/!") {
1946	#TODO: this should de-fi-ni-te-ly not be a sync-job	2333	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2334	# the problem is that $exit might not survive long enough
		2335	# so it needs to be done right now, right here
1947	cf::sync_job { prepare_random_map $exit };	2336	cf::sync_job { prepare_random_map $exit };
1948	}	2337	}
1949		2338
1950	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2339	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1951	my $hp = $exit->stats->hp;	2340	my $hp = $exit->stats->hp;
…		…
1959	$self->goto ($slaying, $hp, $sp);	2348	$self->goto ($slaying, $hp, $sp);
1960		2349
1961	1;	2350	1;
1962	}) {	2351	}) {
1963	$self->message ("Something went wrong deep within the crossfire server. "	2352	$self->message ("Something went wrong deep within the crossfire server. "
1964	. "I'll try to bring you back to the map you were before. "	2353	. "I'll try to bring you back to the map you were before. "
1965	. "Please report this to the dungeon master!",	2354	. "Please report this to the dungeon master!",
1966	cf::NDI_UNIQUE | cf::NDI_RED);	2355	cf::NDI_UNIQUE | cf::NDI_RED);
1967		2356
1968	warn "ERROR in enter_exit: $@";	2357	warn "ERROR in enter_exit: $@";
1969	$self->leave_link;	2358	$self->leave_link;
1970	}	2359	}
1971	})->prio (1);	2360	})->prio (1);
…		…
1987		2376
1988	utf8::encode $text;	2377	utf8::encode $text;
1989	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2378	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1990	}	2379	}
1991		2380
		2381	=item $client->send_msg ($color, $type, $msg, [extra...])
		2382
		2383	Send a drawinfo or msg packet to the client, formatting the msg for the
		2384	client if neccessary. C<$type> should be a string identifying the type of
		2385	the message, with C<log> being the default. If C<$color> is negative, suppress
		2386	the message unless the client supports the msg packet.
		2387
		2388	=cut
		2389
		2390	sub cf::client::send_msg {
		2391	my ($self, $color, $type, $msg, @extra) = @_;
		2392
		2393	$msg = $self->pl->expand_cfpod ($msg);
		2394
		2395	if ($self->can_msg) {
		2396	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2397	} else {
		2398	# replace some tags by gcfclient-compatible ones
		2399	for ($msg) {
		2400	1 while
		2401	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2402	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2403	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2404	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2405	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2406	}
		2407
		2408	if ($color >= 0) {
		2409	if (0 && $msg =~ /\[/) {
		2410	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2411	} else {
		2412	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2413	$self->send_packet ("drawinfo $color $msg")
		2414	}
		2415	}
		2416	}
		2417	}
		2418
		2419	=item $client->ext_event ($type, %msg)
		2420
		2421	Sends an ext event to the client.
		2422
		2423	=cut
		2424
		2425	sub cf::client::ext_event($$%) {
		2426	my ($self, $type, %msg) = @_;
		2427
		2428	$msg{msgtype} = "event_$type";
		2429	$self->send_packet ("ext " . cf::to_json \%msg);
		2430	}
1992		2431
1993	=item $success = $client->query ($flags, "text", \&cb)	2432	=item $success = $client->query ($flags, "text", \&cb)
1994		2433
1995	Queues a query to the client, calling the given callback with	2434	Queues a query to the client, calling the given callback with
1996	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2435	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1997	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2436	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1998		2437
1999	Queries can fail, so check the return code. Or don't, as queries will become	2438	Queries can fail, so check the return code. Or don't, as queries will
2000	reliable at some point in the future.	2439	become reliable at some point in the future.
2001		2440
2002	=cut	2441	=cut
2003		2442
2004	sub cf::client::query {	2443	sub cf::client::query {
2005	my ($self, $flags, $text, $cb) = @_;	2444	my ($self, $flags, $text, $cb) = @_;
…		…
2013	utf8::encode $text;	2452	utf8::encode $text;
2014	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2453	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2015		2454
2016	$self->send_packet ($self->{query_queue}[0][0])	2455	$self->send_packet ($self->{query_queue}[0][0])
2017	if @{ $self->{query_queue} } == 1;	2456	if @{ $self->{query_queue} } == 1;
		2457
		2458	1
2018	}	2459	}
2019		2460
2020	cf::client->attach (	2461	cf::client->attach (
2021	on_reply => sub {	2462	on_reply => sub {
2022	my ($ns, $msg) = @_;	2463	my ($ns, $msg) = @_;
…		…
2036	$ns->send_packet ($ns->{query_queue}[0][0]);	2477	$ns->send_packet ($ns->{query_queue}[0][0]);
2037	} else {	2478	} else {
2038	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2479	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2039	}	2480	}
2040	}	2481	}
		2482	},
		2483	on_exticmd => sub {
		2484	my ($ns, $buf) = @_;
		2485
		2486	my $msg = eval { from_json $buf };
		2487
		2488	if (ref $msg) {
		2489	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2490	if (my %reply = $cb->($ns, $msg)) {
		2491	$reply{msgid} = $msg->{msgid};
		2492	$ns->send ("ext " . cf::to_json \%reply);
		2493	}
		2494	}
		2495	} else {
		2496	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2497	}
		2498
		2499	cf::override;
2041	},	2500	},
2042	);	2501	);
2043		2502
2044	=item $client->async (\&cb)	2503	=item $client->async (\&cb)
2045		2504
…		…
2184	=back	2643	=back
2185		2644
2186	=cut	2645	=cut
2187		2646
2188	#############################################################################	2647	#############################################################################
2189
2190	=head2 EXTENSION DATABASE SUPPORT
2191
2192	Crossfire maintains a very simple database for extension use. It can
2193	currently store anything that can be serialised using Storable, which
2194	excludes objects.
2195
2196	The parameter C<$family> should best start with the name of the extension
2197	using it, it should be unique.
2198
2199	=over 4
2200
2201	=item $value = cf::db_get $family => $key
2202
2203	Returns a single value from the database.
2204
2205	=item cf::db_put $family => $key => $value
2206
2207	Stores the given C<$value> in the family.
2208
2209	=cut
2210
2211	our $DB;
2212
2213	sub db_init {
2214	unless ($DB) {
2215	$DB = BDB::db_create $DB_ENV;
2216
2217	cf::sync_job {
2218	eval {
2219	$DB->set_flags (BDB::CHKSUM);
2220
2221	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2222	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2223	cf::cleanup "db_open(db): $!" if $!;
2224	};
2225	cf::cleanup "db_open(db): $@" if $@;
2226	};
2227
2228	my $path = cf::localdir . "/database.pst";
2229	if (stat $path) {
2230	cf::sync_job {
2231	my $pst = Storable::retrieve $path;
2232
2233	cf::db_put (board => data => $pst->{board});
2234	cf::db_put (guildrules => data => $pst->{guildrules});
2235	cf::db_put (rent => balance => $pst->{rent}{balance});
2236	BDB::db_env_txn_checkpoint $DB_ENV;
2237
2238	unlink $path;
2239	};
2240	}
2241	}
2242	}
2243
2244	sub db_get($$) {
2245	my $key = "$_[0]/$_[1]";
2246
2247	cf::sync_job {
2248	BDB::db_get $DB, undef, $key, my $data;
2249
2250	$! ? ()
2251	: Compress::LZF::sthaw $data
2252	}
2253	}
2254
2255	sub db_put($$$) {
2256	BDB::dbreq_pri 4;
2257	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2258	}
2259
2260	#############################################################################
2261	# the server's init and main functions	2648	# the server's init and main functions
2262		2649
2263	sub load_facedata {	2650	sub load_facedata($) {
2264	my $path = sprintf "%s/facedata", cf::datadir;	2651	my ($path) = @_;
2265		2652
2266	warn "loading facedata from $path\n";	2653	warn "loading facedata from $path\n";
2267		2654
2268	my $faces;	2655	my $facedata;
2269	0 < aio_load $path, $faces	2656	0 < aio_load $path, $facedata
2270	or die "$path: $!";	2657	or die "$path: $!";
2271		2658
2272	Coro::cede;
2273	$faces = Storable::thaw $faces;	2659	$facedata = Coro::Storable::thaw $facedata;
2274	Coro::cede;
2275		2660
2276	my $meta = delete $faces->{""};
2277	$meta->{version} == 1	2661	$facedata->{version} == 2
2278	or cf::cleanup "$path: version mismatch, cannot proceed.";	2662	or cf::cleanup "$path: version mismatch, cannot proceed.";
2279		2663
		2664	{
		2665	my $faces = $facedata->{faceinfo};
		2666
2280	while (my ($face, $info) = each %$faces) {	2667	while (my ($face, $info) = each %$faces) {
2281	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2668	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2282	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2669	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2283	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2670	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2284	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2671	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2285	Coro::cede;	2672	Coro::cede;
2286	}	2673	}
2287		2674
2288	while (my ($face, $info) = each %$faces) {	2675	while (my ($face, $info) = each %$faces) {
2289	next unless $info->{smooth};	2676	next unless $info->{smooth};
2290	my $idx = cf::face::find $face	2677	my $idx = cf::face::find $face
2291	or next;	2678	or next;
2292	if (my $smooth = cf::face::find $info->{smooth}) {	2679	if (my $smooth = cf::face::find $info->{smooth}) {
2293	cf::face::set_smooth $idx, $smooth;	2680	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
2294	} else {	2681	} else {
2295	warn "smooth face '$info->{smooth}' not found for face '$face'";	2682	warn "smooth face '$info->{smooth}' not found for face '$face'";
2296	}	2683	}
2297	Coro::cede;	2684	Coro::cede;
		2685	}
		2686	}
		2687
		2688	{
		2689	my $anims = $facedata->{animinfo};
		2690
		2691	while (my ($anim, $info) = each %$anims) {
		2692	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2693	Coro::cede;
		2694	}
		2695
		2696	cf::anim::invalidate_all; # d'oh
2298	}	2697	}
2299		2698
2300	1	2699	1
2301	}	2700	}
2302		2701
		2702	sub reload_regions {
		2703	load_resource_file "$MAPDIR/regions"
		2704	or die "unable to load regions file\n";
		2705	}
		2706
		2707	sub reload_facedata {
		2708	load_facedata "$DATADIR/facedata"
		2709	or die "unable to load facedata\n";
		2710	}
		2711
		2712	sub reload_archetypes {
		2713	load_resource_file "$DATADIR/archetypes"
		2714	or die "unable to load archetypes\n";
		2715	}
		2716
		2717	sub reload_treasures {
		2718	load_resource_file "$DATADIR/treasures"
		2719	or die "unable to load treasurelists\n";
		2720	}
		2721
2303	sub reload_resources {	2722	sub reload_resources {
2304	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2723	warn "reloading resource files...\n";
2305	or die "unable to load regions file\n";#d#	2724
		2725	reload_regions;
2306	load_facedata	2726	reload_facedata;
2307	or die "unable to load facedata\n";#d#	2727	#reload_archetypes;#d#
		2728	reload_archetypes;
		2729	reload_treasures;
		2730
		2731	warn "finished reloading resource files\n";
2308	}	2732	}
2309		2733
2310	sub init {	2734	sub init {
2311	reload_resources;	2735	reload_resources;
2312	}	2736	}
2313		2737
2314	sub cfg_load {	2738	sub cfg_load {
2315	open my $fh, "<:utf8", cf::confdir . "/config"	2739	open my $fh, "<:utf8", "$CONFDIR/config"
2316	or return;	2740	or return;
2317		2741
2318	local $/;	2742	local $/;
2319	*CFG = YAML::Syck::Load <$fh>;	2743	*CFG = YAML::Syck::Load <$fh>;
2320		2744
…		…
2365	},	2789	},
2366	);	2790	);
2367	}	2791	}
2368	}	2792	}
2369		2793
		2794	sub write_runtime {
		2795	my $runtime = "$LOCALDIR/runtime";
		2796
		2797	# first touch the runtime file to show we are still running:
		2798	# the fsync below can take a very very long time.
		2799
		2800	IO::AIO::aio_utime $runtime, undef, undef;
		2801
		2802	my $guard = cf::lock_acquire "write_runtime";
		2803
		2804	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2805	or return;
		2806
		2807	my $value = $cf::RUNTIME + 90 + 10;
		2808	# 10 is the runtime save interval, for a monotonic clock
		2809	# 60 allows for the watchdog to kill the server.
		2810
		2811	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2812	and return;
		2813
		2814	# always fsync - this file is important
		2815	aio_fsync $fh
		2816	and return;
		2817
		2818	# touch it again to show we are up-to-date
		2819	aio_utime $fh, undef, undef;
		2820
		2821	close $fh
		2822	or return;
		2823
		2824	aio_rename "$runtime~", $runtime
		2825	and return;
		2826
		2827	warn "runtime file written.\n";
		2828
		2829	1
		2830	}
		2831
2370	sub emergency_save() {	2832	sub emergency_save() {
2371	my $freeze_guard = cf::freeze_mainloop;	2833	my $freeze_guard = cf::freeze_mainloop;
2372		2834
2373	warn "enter emergency perl save\n";	2835	warn "enter emergency perl save\n";
2374		2836
…		…
2405		2867
2406	warn Carp::longmess "post_cleanup backtrace"	2868	warn Carp::longmess "post_cleanup backtrace"
2407	if $make_core;	2869	if $make_core;
2408	}	2870	}
2409		2871
2410	sub reload() {	2872	sub do_reload_perl() {
2411	# can/must only be called in main	2873	# can/must only be called in main
2412	if ($Coro::current != $Coro::main) {	2874	if ($Coro::current != $Coro::main) {
2413	warn "can only reload from main coroutine";	2875	warn "can only reload from main coroutine";
2414	return;	2876	return;
2415	}	2877	}
…		…
2449	%EXT_CORO = ();	2911	%EXT_CORO = ();
2450		2912
2451	warn "removing commands";	2913	warn "removing commands";
2452	%COMMAND = ();	2914	%COMMAND = ();
2453		2915
2454	warn "removing ext commands";	2916	warn "removing ext/exti commands";
2455	%EXTCMD = ();	2917	%EXTCMD = ();
		2918	%EXTICMD = ();
2456		2919
2457	warn "unloading/nuking all extensions";	2920	warn "unloading/nuking all extensions";
2458	for my $pkg (@EXTS) {	2921	for my $pkg (@EXTS) {
2459	warn "... unloading $pkg";	2922	warn "... unloading $pkg";
2460		2923
…		…
2490	Symbol::delete_package "safe::$_"	2953	Symbol::delete_package "safe::$_"
2491	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2954	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2492		2955
2493	warn "unloading cf.pm \"a bit\"";	2956	warn "unloading cf.pm \"a bit\"";
2494	delete $INC{"cf.pm"};	2957	delete $INC{"cf.pm"};
		2958	delete $INC{"cf/pod.pm"};
2495		2959
2496	# don't, removes xs symbols, too,	2960	# don't, removes xs symbols, too,
2497	# and global variables created in xs	2961	# and global variables created in xs
2498	#Symbol::delete_package __PACKAGE__;	2962	#Symbol::delete_package __PACKAGE__;
2499		2963
…		…
2514	warn "reattaching attachments to maps";	2978	warn "reattaching attachments to maps";
2515	reattach $_ for values %MAP;	2979	reattach $_ for values %MAP;
2516	warn "reattaching attachments to players";	2980	warn "reattaching attachments to players";
2517	reattach $_ for values %PLAYER;	2981	reattach $_ for values %PLAYER;
2518		2982
2519	warn "loading reloadable resources";
2520	reload_resources;
2521
2522	warn "leaving sync_job";	2983	warn "leaving sync_job";
2523		2984
2524	1	2985	1
2525	} or do {	2986	} or do {
2526	warn $@;	2987	warn $@;
…		…
2531	warn "reloaded";	2992	warn "reloaded";
2532	};	2993	};
2533		2994
2534	our $RELOAD_WATCHER; # used only during reload	2995	our $RELOAD_WATCHER; # used only during reload
2535		2996
		2997	sub reload_perl() {
		2998	# doing reload synchronously and two reloads happen back-to-back,
		2999	# coro crashes during coro_state_free->destroy here.
		3000
		3001	$RELOAD_WATCHER ||= Event->timer (
		3002	reentrant => 0,
		3003	after => 0,
		3004	data => WF_AUTOCANCEL,
		3005	cb => sub {
		3006	do_reload_perl;
		3007	undef $RELOAD_WATCHER;
		3008	},
		3009	);
		3010	}
		3011
2536	register_command "reload" => sub {	3012	register_command "reload" => sub {
2537	my ($who, $arg) = @_;	3013	my ($who, $arg) = @_;
2538		3014
2539	if ($who->flag (FLAG_WIZ)) {	3015	if ($who->flag (FLAG_WIZ)) {
2540	$who->message ("reloading server.");	3016	$who->message ("reloading server.");
2541		3017	async { reload_perl };
2542	# doing reload synchronously and two reloads happen back-to-back,
2543	# coro crashes during coro_state_free->destroy here.
2544
2545	$RELOAD_WATCHER ||= Event->timer (
2546	reentrant => 0,
2547	after => 0,
2548	data => WF_AUTOCANCEL,
2549	cb => sub {
2550	reload;
2551	undef $RELOAD_WATCHER;
2552	},
2553	);
2554	}	3018	}
2555	};	3019	};
2556		3020
2557	unshift @INC, $LIBDIR;	3021	unshift @INC, $LIBDIR;
2558		3022
2559	my $bug_warning = 0;	3023	my $bug_warning = 0;
2560		3024
		3025	our @WAIT_FOR_TICK;
		3026	our @WAIT_FOR_TICK_BEGIN;
		3027
		3028	sub wait_for_tick {
		3029	return unless $TICK_WATCHER->is_active;
		3030	return if $Coro::current == $Coro::main;
		3031
		3032	my $signal = new Coro::Signal;
		3033	push @WAIT_FOR_TICK, $signal;
		3034	$signal->wait;
		3035	}
		3036
		3037	sub wait_for_tick_begin {
		3038	return unless $TICK_WATCHER->is_active;
		3039	return if $Coro::current == $Coro::main;
		3040
		3041	my $signal = new Coro::Signal;
		3042	push @WAIT_FOR_TICK_BEGIN, $signal;
		3043	$signal->wait;
		3044	}
		3045
		3046	my $min = 1e6;#d#
		3047	my $avg = 10;
2561	$TICK_WATCHER = Event->timer (	3048	$TICK_WATCHER = Event->timer (
2562	reentrant => 0,	3049	reentrant => 0,
2563	parked => 1,	3050	parked => 1,
2564	prio => 0,	3051	prio => 0,
2565	at => $NEXT_TICK || $TICK,	3052	at => $NEXT_TICK || $TICK,
…		…
2569	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3056	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2570	unless ++$bug_warning > 10;	3057	unless ++$bug_warning > 10;
2571	return;	3058	return;
2572	}	3059	}
2573		3060
2574	$NOW = Event::time;	3061	$NOW = $tick_start = Event::time;
2575		3062
2576	cf::server_tick; # one server iteration	3063	cf::server_tick; # one server iteration
		3064
		3065	0 && sync_job {#d#
		3066	for(1..10) {
		3067	my $t = Event::time;
		3068	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3069	or die;
		3070
		3071	$map->width (50);
		3072	$map->height (50);
		3073	$map->alloc;
		3074	$map->_load_objects ("/tmp/x.map", 1);
		3075	my $t = Event::time - $t;
		3076
		3077	#next unless $t < 0.0013;#d#
		3078	if ($t < $min) {
		3079	$min = $t;
		3080	}
		3081	$avg = $avg * 0.99 + $t * 0.01;
		3082	}
		3083	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3084	exit 0;
		3085	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3086	};
		3087
2577	$RUNTIME += $TICK;	3088	$RUNTIME += $TICK;
2578	$NEXT_TICK += $TICK;	3089	$NEXT_TICK += $TICK;
2579		3090
2580	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3091	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2581	$NEXT_RUNTIME_WRITE = $NOW + 10;	3092	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2583	write_runtime	3094	write_runtime
2584	or warn "ERROR: unable to write runtime file: $!";	3095	or warn "ERROR: unable to write runtime file: $!";
2585	};	3096	};
2586	}	3097	}
2587		3098
2588	$WAIT_FOR_TICK->broadcast;
2589	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2590
2591	# my $AFTER = Event::time;	3099	# my $AFTER = Event::time;
2592	# warn $AFTER - $NOW;#d#	3100	# warn $AFTER - $NOW;#d#
2593		3101
		3102	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3103	$sig->send;
		3104	}
		3105	while (my $sig = shift @WAIT_FOR_TICK) {
		3106	$sig->send;
		3107	}
		3108
		3109	$NOW = Event::time;
		3110
2594	# if we are delayed by four ticks or more, skip them all	3111	# if we are delayed by four ticks or more, skip them all
2595	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3112	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2596		3113
2597	$TICK_WATCHER->at ($NEXT_TICK);	3114	$TICK_WATCHER->at ($NEXT_TICK);
2598	$TICK_WATCHER->start;	3115	$TICK_WATCHER->start;
		3116
		3117	$LOAD = ($NOW - $tick_start) / $TICK;
		3118	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3119
		3120	_post_tick;
		3121
		3122
2599	},	3123	},
2600	);	3124	);
2601		3125
2602	{	3126	{
2603	BDB::max_poll_time $TICK * 0.1;	3127	BDB::max_poll_time $TICK * 0.1;
…		…
2631		3155
2632	cf::sync_job {	3156	cf::sync_job {
2633	eval {	3157	eval {
2634	BDB::db_env_open	3158	BDB::db_env_open
2635	$DB_ENV,	3159	$DB_ENV,
2636	$BDB_ENV_DIR,	3160	$BDBDIR,
2637	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3161	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2638	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3162	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2639	0666;	3163	0666;
2640		3164
2641	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3165	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2642		3166
2643	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3167	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2644	$DB_ENV->set_lk_detect;	3168	$DB_ENV->set_lk_detect;
2645	};	3169	};
2646		3170
…		…
2662	prio => 6,	3186	prio => 6,
2663	cb => \&IO::AIO::poll_cb,	3187	cb => \&IO::AIO::poll_cb,
2664	);	3188	);
2665	}	3189	}
2666		3190
		3191	my $_log_backtrace;
		3192
		3193	sub _log_backtrace {
		3194	my ($msg, @addr) = @_;
		3195
		3196	$msg =~ s/\n//;
		3197
		3198	# limit the # of concurrent backtraces
		3199	if ($_log_backtrace < 2) {
		3200	++$_log_backtrace;
		3201	async {
		3202	my @bt = fork_call {
		3203	@addr = map { sprintf "%x", $_ } @addr;
		3204	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3205	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3206	or die "addr2line: $!";
		3207
		3208	my @funcs;
		3209	my @res = <$fh>;
		3210	chomp for @res;
		3211	while (@res) {
		3212	my ($func, $line) = splice @res, 0, 2, ();
		3213	push @funcs, "[$func] $line";
		3214	}
		3215
		3216	@funcs
		3217	};
		3218
		3219	LOG llevInfo, "[ABT] $msg\n";
		3220	LOG llevInfo, "[ABT] $_\n" for @bt;
		3221	--$_log_backtrace;
		3222	};
		3223	} else {
		3224	LOG llevInfo, "[ABT] $msg\n";
		3225	LOG llevInfo, "[ABT] [suppressed]\n";
		3226	}
		3227	}
		3228
		3229	# load additional modules
		3230	use cf::pod;
		3231
2667	END { cf::emergency_save }	3232	END { cf::emergency_save }
2668		3233
2669	1	3234	1
2670		3235

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