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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.235 by root, Tue Apr 10 09:35:23 2007 UTC vs.
Revision 1.291 by root, Tue Jul 3 00:54:44 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
9	use Event;	10	use Event;
10	use Opcode;	11	use Opcode;
11	use Safe;	12	use Safe;
12	use Safe::Hole;	13	use Safe::Hole;
13		14
14	use Coro 3.52 ();	15	use Coro 3.61 ();
15	use Coro::State;	16	use Coro::State;
		17	use Coro::Handle;
16	use Coro::Event;	18	use Coro::Event;
17	use Coro::Timer;	19	use Coro::Timer;
18	use Coro::Signal;	20	use Coro::Signal;
19	use Coro::Semaphore;	21	use Coro::Semaphore;
20	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
21		24
		25	use JSON::XS 1.4 ();
22	use BDB ();	26	use BDB ();
23	use Data::Dumper;	27	use Data::Dumper;
24	use Digest::MD5;	28	use Digest::MD5;
25	use Fcntl;	29	use Fcntl;
26	use YAML::Syck ();	30	use YAML::Syck ();
…		…
28	use Time::HiRes;	32	use Time::HiRes;
29	use Compress::LZF;	33	use Compress::LZF;
30		34
31	# configure various modules to our taste	35	# configure various modules to our taste
32	#	36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
35		40
36	$Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
37		42
…		…
45	our %COMMAND = ();	50	our %COMMAND = ();
46	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
47		52
48	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
49	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
50	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
51	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
52		58
53	our $RELOAD; # number of reloads so far	59	our $RELOAD; # number of reloads so far
54	our @EVENT;	60	our @EVENT;
55	our $LIBDIR = datadir . "/ext";
56		61
57	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
58	our $TICK_WATCHER;	75	our $TICK_WATCHER;
59	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
61	our $NEXT_TICK;	78	our $NEXT_TICK;
62	our $NOW;	79	our $NOW;
…		…
71	our $RUNTIME;	88	our $RUNTIME;
72		89
73	our %PLAYER; # all users	90	our %PLAYER; # all users
74	our %MAP; # all maps	91	our %MAP; # all maps
75	our $LINK_MAP; # the special {link} map, which is always available	92	our $LINK_MAP; # the special {link} map, which is always available
76	our $RANDOM_MAPS = cf::localdir . "/random";
77	our $BDB_ENV_DIR = cf::localdir . "/db";
78
79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
81		93
82	# used to convert map paths into valid unix filenames by replacing / by ∕	94	# used to convert map paths into valid unix filenames by replacing / by ∕
83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
84		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
		100
85	binmode STDOUT;	101	binmode STDOUT;
86	binmode STDERR;	102	binmode STDERR;
87		103
88	# read virtual server time, if available	104	# read virtual server time, if available
89	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
90	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
91	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
92	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
93	}	109	}
94		110
95	mkdir cf::localdir;	111	mkdir $_
96	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
97	mkdir cf::localdir . "/" . cf::tmpdir;
98	mkdir cf::localdir . "/" . cf::uniquedir;
99	mkdir $RANDOM_MAPS;
100	mkdir $BDB_ENV_DIR;
101		113
102	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
103		115
104	sub cf::map::normalise;	116	sub cf::map::normalise;
105		117
…		…
116	=item $cf::RUNTIME	128	=item $cf::RUNTIME
117		129
118	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
119	every server tick.	131	every server tick.
120		132
121	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
122		136
123	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
124	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
125		141
126	=item $cf::NOW	142	=item $cf::NOW
127		143
128	The time of the last (current) server tick.	144	The time of the last (current) server tick.
129		145
130	=item $cf::TICK	146	=item $cf::TICK
131		147
132	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
133		159
134	=item %cf::CFG	160	=item %cf::CFG
135		161
136	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
137	from wherever your confdir points to.	163	from wherever your confdir points to.
138		164
139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	165	=item cf::wait_for_tick, cf::wait_for_tick_begin
140		166
141	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
142	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	168	returns directly I<after> the tick processing (and consequently, can only wake one process
143	processing has been done. Call C<< ->wait >> on them to maximise the	169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
144	window of cpu time available, or simply to synchronise to the server tick.
145		170
146	=back	171	=back
147		172
148	=cut	173	=cut
149		174
150	BEGIN {	175	BEGIN {
151	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
152	my $msg = join "", @_;	177	my $msg = join "", @_;
153	utf8::encode $msg;
154		178
155	$msg .= "\n"	179	$msg .= "\n"
156	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
157		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
158	LOG llevError, $msg;	185	LOG llevError, $msg;
159	};	186	};
160	}	187	}
161		188
162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
164	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
165	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
166	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
167	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
168		196
169	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
170	# within the Safe compartment.	198	# within the Safe compartment.
171	for my $pkg (qw(	199	for my $pkg (qw(
172	cf::global cf::attachable	200	cf::global cf::attachable
…		…
180	}	208	}
181		209
182	$Event::DIED = sub {	210	$Event::DIED = sub {
183	warn "error in event callback: @_";	211	warn "error in event callback: @_";
184	};	212	};
		213
		214	#############################################################################
185		215
186	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
187		217
188	=over 4	218	=over 4
189		219
…		…
208	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
209	$d	239	$d
210	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
211	}	241	}
212		242
213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
214
215	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
216		244
217	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
218		246
219	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
220		248
221	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
		250
		251	=cut
		252
		253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		254
		255	sub to_json ($) { $json_coder->encode ($_[0]) }
		256	sub from_json ($) { $json_coder->decode ($_[0]) }
222		257
223	=item cf::lock_wait $string	258	=item cf::lock_wait $string
224		259
225	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
226		261
…		…
232	returned.	267	returned.
233		268
234	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
235	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
236		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
237	=cut	276	=cut
238		277
239	our %LOCK;	278	our %LOCK;
240		279
241	sub lock_wait($) {	280	sub lock_wait($) {
…		…
258		297
259	Coro::guard {	298	Coro::guard {
260	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
261	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
262	}	301	}
		302	}
		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
263	}	308	}
264		309
265	sub freeze_mainloop {	310	sub freeze_mainloop {
266	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
267		312
…		…
282		327
283	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
284		329
285	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
286		331
287	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
290		336
291	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
294	fast or be very important.	340	fast or be very important.
…		…
297		343
298	sub sync_job(&) {	344	sub sync_job(&) {
299	my ($job) = @_;	345	my ($job) = @_;
300		346
301	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
302	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
304		352
305	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
317		365
318	while ($busy) {	366	while ($busy) {
319	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
320	}	368	}
321		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
		376
322	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
323	} else {	378	} else {
324	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
325		380
326	$job->()	381	$job->()
…		…
345	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
346		401
347	$coro	402	$coro
348	}	403	}
349		404
350	sub write_runtime {	405	=item fork_call { }, $args
351	my $guard = cf::lock_acquire "write_runtime";
352		406
353	my $runtime = cf::localdir . "/runtime";	407	Executes the given code block with the given arguments in a seperate
		408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
354		411
355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	412	=cut
356	or return;
357		413
358	my $value = $cf::RUNTIME + 90 + 10;	414	sub fork_call(&@) {
359	# 10 is the runtime save interval, for a monotonic clock	415	my ($cb, @args) = @_;
360	# 60 allows for the watchdog to kill the server.
361		416
362	(aio_write $fh, 0, (length $value), $value, 0) <= 0	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
363	and return;	418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
364		421
365	# always fsync - this file is important	422	if (my $pid = fork) {
366	aio_fsync $fh
367	and return;
368
369	close $fh	423	close $fh2;
370	or return;
371		424
372	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
373	and return;	426	$res = Coro::Storable::thaw $res;
374		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
375	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
376	}	563	}
377		564
378	=item cf::datalog type => key => value, ...	565	=item cf::datalog type => key => value, ...
379		566
380	Log a datalog packet of the given type with the given key-value pairs.	567	Log a datalog packet of the given type with the given key-value pairs.
…		…
398	attach callbacks/event handlers (a collection of which is called an "attachment")	585	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
400		587
401	In the following description, CLASS can be any of C<global>, C<object>	588	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	589	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	590	Crossfire TRT).
404		591
405	=over 4	592	=over 4
406		593
407	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
408		595
…		…
571	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
572		759
573	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
574	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
575	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
576	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
577		764
578	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
579	my $pkg = shift @arg;	766	my $pkg = shift @arg;
580		767
581	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
610	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
611	}	798	}
612		799
613	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
614	} else {	801	} else {
615	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
616	}	803	}
617		804
618	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
619	}	806	}
620		807
…		…
622	if (ref $_[0]) {	809	if (ref $_[0]) {
623	_object_attach @_;	810	_object_attach @_;
624	} else {	811	} else {
625	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
626	}	813	}
		814	_recalc_want;
627	};	815	};
628		816
629	# all those should be optimised	817	# all those should be optimised
630	sub cf::attachable::detach {	818	sub cf::attachable::detach {
631	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
634	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
635	reattach ($obj);	823	reattach ($obj);
636	} else {	824	} else {
637	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
638	}	826	}
		827	_recalc_want;
639	};	828	};
640		829
641	sub cf::attachable::attached {	830	sub cf::attachable::attached {
642	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
643		832
…		…
816	or return;	1005	or return;
817	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
818	}	1007	}
819		1008
820	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
821	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
822	return ($data, $av);	1011	return ($data, $av);
823	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
824		1019
825	#############################################################################	1020	#############################################################################
826	# command handling &c	1021	# command handling &c
827		1022
828	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1037	}
843		1038
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
845		1040
846	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
847		1046
848	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
849	called.	1048	called.
850		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
851	=cut	1061	=cut
852		1062
853	sub register_extcmd {	1063	sub register_extcmd {
854	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
855		1065
856	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
857	}	1073	}
858		1074
859	cf::player->attach (	1075	cf::player->attach (
860	on_command => sub {	1076	on_command => sub {
861	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
870	cf::override;	1086	cf::override;
871	},	1087	},
872	on_extcmd => sub {	1088	on_extcmd => sub {
873	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
874		1090
875	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
876		1092
877	if (ref $msg) {	1093	if (ref $msg) {
878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
879	if (my %reply = $cb->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
880	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
886		1102
887	cf::override;	1103	cf::override;
888	},	1104	},
889	);	1105	);
890		1106
891	sub load_extension {
892	my ($path) = @_;
893
894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
895	my $base = $1;
896	my $pkg = $1;
897	$pkg =~ s/[^[:word:]]/_/g;
898	$pkg = "ext::$pkg";
899
900	warn "... loading '$path' into '$pkg'\n";
901
902	open my $fh, "<:utf8", $path
903	or die "$path: $!";
904
905	my $source =
906	"package $pkg; use strict; use utf8;\n"
907	. "#line 1 \"$path\"\n{\n"
908	. (do { local $/; <$fh> })
909	. "\n};\n1";
910
911	unless (eval $source) {
912	my $msg = $@ ? "$path: $@\n"
913	: "extension disabled.\n";
914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
915	warn $@;
916	warn "mandatory extension failed to load, exiting.\n";
917	exit 1;
918	}
919	die $@;
920	}
921
922	push @EXTS, $pkg;
923	}
924
925	sub load_extensions {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
926	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
927	next unless -r $ext;	1112	next unless -r $path;
928	eval {	1113
929	load_extension $ext;	1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
930	1	1171	}
931	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
932	}	1177	};
933	}	1178	}
934		1179
935	#############################################################################	1180	#############################################################################
936		1181
		1182	=back
		1183
937	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
938		1185
939	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
940		1187
941	=cut	1188	=cut
…		…
953	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
954		1201
955	=cut	1202	=cut
956		1203
957	sub playerdir($) {	1204	sub playerdir($) {
958	cf::localdir	1205	"$PLAYERDIR/"
959	. "/"
960	. cf::playerdir
961	. "/"
962	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
963	}	1207	}
964		1208
965	sub path($) {	1209	sub path($) {
966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
1086	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1087		1331
1088	=cut	1332	=cut
1089		1333
1090	sub list_logins {	1334	sub list_logins {
1091	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1092	or return [];	1336	or return [];
1093		1337
1094	my @logins;	1338	my @logins;
1095		1339
1096	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1131	}	1375	}
1132		1376
1133	\@paths	1377	\@paths
1134	}	1378	}
1135		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s{H<([^\>]*)>}
		1406	{
		1407	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1408	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1409	"")
		1410	[$self->{hintmode}]
		1411	}ge;
		1412
		1413	# create single paragraphs (very hackish)
		1414	s/(?<=\S)\n(?=\w)/ /g;
		1415
		1416	# compress some whitespace
		1417	1 while s/\s*\n\s*\n\s*/\n/;
		1418
		1419	$_
		1420	}
		1421
		1422	sub hintmode {
		1423	warn "hm<$_[0] $_[1]>\n";#d#
		1424	$_[0]{hintmode} = $_[1] if @_ > 1;
		1425	$_[0]{hintmode}
		1426	}
		1427
1136	=item $player->ext_reply ($msgid, %msg)	1428	=item $player->ext_reply ($msgid, %msg)
1137		1429
1138	Sends an ext reply to the player.	1430	Sends an ext reply to the player.
1139		1431
1140	=cut	1432	=cut
1141		1433
1142	sub ext_reply($$%) {	1434	sub ext_reply($$%) {
1143	my ($self, $id, %msg) = @_;	1435	my ($self, $id, %msg) = @_;
1144		1436
1145	$msg{msgid} = $id;	1437	$msg{msgid} = $id;
1146		1438	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1147	$self->send ("ext " . cf::to_json \%msg);
1148	}	1439	}
1149		1440
1150	=item $player->ext_event ($type, %msg)	1441	=item $player->ext_event ($type, %msg)
1151		1442
1152	Sends an ext event to the client.	1443	Sends an ext event to the client.
…		…
1157	my ($self, $type, %msg) = @_;	1448	my ($self, $type, %msg) = @_;
1158		1449
1159	$self->ns->ext_event ($type, %msg);	1450	$self->ns->ext_event ($type, %msg);
1160	}	1451	}
1161		1452
1162	package cf;	1453	=head3 cf::region
		1454
		1455	=over 4
		1456
		1457	=cut
		1458
		1459	package cf::region;
		1460
		1461	=item cf::region::find_by_path $path
		1462
		1463	Tries to decuce the likely region for a map knowing only its path.
		1464
		1465	=cut
		1466
		1467	sub find_by_path($) {
		1468	my ($path) = @_;
		1469
		1470	my ($match, $specificity);
		1471
		1472	for my $region (list) {
		1473	if ($region->match && $path =~ $region->match) {
		1474	($match, $specificity) = ($region, $region->specificity)
		1475	if $region->specificity > $specificity;
		1476	}
		1477	}
		1478
		1479	$match
		1480	}
1163		1481
1164	=back	1482	=back
1165
1166		1483
1167	=head3 cf::map	1484	=head3 cf::map
1168		1485
1169	=over 4	1486	=over 4
1170		1487
…		…
1225	my ($self, $merge) = @_;	1542	my ($self, $merge) = @_;
1226		1543
1227	# we have to keep some variables in memory intact	1544	# we have to keep some variables in memory intact
1228	local $self->{path};	1545	local $self->{path};
1229	local $self->{load_path};	1546	local $self->{load_path};
1230	local $self->{deny_save};
1231	local $self->{deny_reset};
1232		1547
1233	$self->SUPER::thawer_merge ($merge);	1548	$self->SUPER::thawer_merge ($merge);
1234	}	1549	}
1235		1550
1236	sub normalise {	1551	sub normalise {
…		…
1308		1623
1309	# the original (read-only) location	1624	# the original (read-only) location
1310	sub load_path {	1625	sub load_path {
1311	my ($self) = @_;	1626	my ($self) = @_;
1312		1627
1313	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1628	"$MAPDIR/$self->{path}.map"
1314	}	1629	}
1315		1630
1316	# the temporary/swap location	1631	# the temporary/swap location
1317	sub save_path {	1632	sub save_path {
1318	my ($self) = @_;	1633	my ($self) = @_;
1319		1634
1320	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1635	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1321	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1636	"$TMPDIR/$path.map"
1322	}	1637	}
1323		1638
1324	# the unique path, undef == no special unique path	1639	# the unique path, undef == no special unique path
1325	sub uniq_path {	1640	sub uniq_path {
1326	my ($self) = @_;	1641	my ($self) = @_;
1327		1642
1328	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1643	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1329	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1644	"$UNIQUEDIR/$path"
1330	}	1645	}
1331		1646
1332	# and all this just because we cannot iterate over	1647	# and all this just because we cannot iterate over
1333	# all maps in C++...	1648	# all maps in C++...
1334	sub change_all_map_light {	1649	sub change_all_map_light {
1335	my ($change) = @_;	1650	my ($change) = @_;
1336		1651
1337	$_->change_map_light ($change)	1652	$_->change_map_light ($change)
1338	for grep $_->outdoor, values %cf::MAP;	1653	for grep $_->outdoor, values %cf::MAP;
		1654	}
		1655
		1656	sub decay_objects {
		1657	my ($self) = @_;
		1658
		1659	return if $self->{deny_reset};
		1660
		1661	$self->do_decay_objects;
1339	}	1662	}
1340		1663
1341	sub unlink_save {	1664	sub unlink_save {
1342	my ($self) = @_;	1665	my ($self) = @_;
1343		1666
…		…
1401	$self->load_header_orig	1724	$self->load_header_orig
1402	or return;	1725	or return;
1403	$self->prepare_orig;	1726	$self->prepare_orig;
1404	}	1727	}
1405		1728
		1729	$self->{deny_reset} = 1
		1730	if $self->no_reset;
		1731
		1732	$self->default_region (cf::region::find_by_path $self->{path})
		1733	unless $self->default_region;
		1734
1406	1	1735	1
1407	}	1736	}
1408		1737
1409	sub find;	1738	sub find;
1410	sub find {	1739	sub find {
…		…
1422	$map->{last_save} = $cf::RUNTIME;	1751	$map->{last_save} = $cf::RUNTIME;
1423		1752
1424	$map->load_header	1753	$map->load_header
1425	or return;	1754	or return;
1426		1755
1427	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1756	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1428	# doing this can freeze the server in a sync job, obviously	1757	# doing this can freeze the server in a sync job, obviously
1429	#$cf::WAIT_FOR_TICK->wait;	1758	#$cf::WAIT_FOR_TICK->wait;
1430	$map->reset;	1759	$map->reset;
1431	undef $guard;	1760	undef $guard;
1432	return find $path;	1761	return find $path;
…		…
1443	my ($self) = @_;	1772	my ($self) = @_;
1444		1773
1445	local $self->{deny_reset} = 1; # loading can take a long time	1774	local $self->{deny_reset} = 1; # loading can take a long time
1446		1775
1447	my $path = $self->{path};	1776	my $path = $self->{path};
		1777
		1778	{
1448	my $guard = cf::lock_acquire "map_load:$path";	1779	my $guard = cf::lock_acquire "map_load:$path";
1449		1780
1450	return if $self->in_memory != cf::MAP_SWAPPED;	1781	return if $self->in_memory != cf::MAP_SWAPPED;
1451		1782
1452	$self->in_memory (cf::MAP_LOADING);	1783	$self->in_memory (cf::MAP_LOADING);
1453		1784
1454	$self->alloc;	1785	$self->alloc;
1455		1786
1456	$self->pre_load;	1787	$self->pre_load;
1457
1458	$self->_load_objects ($self->{load_path}, 1)
1459	or return;
1460
1461	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1462	if delete $self->{load_original};
1463
1464	if (my $uniq = $self->uniq_path) {
1465	utf8::encode $uniq;
1466	if (aio_open $uniq, O_RDONLY, 0) {
1467	$self->clear_unique_items;
1468	$self->_load_objects ($uniq, 0);
1469	}
1470	}
1471
1472	Coro::cede;
1473
1474	# now do the right thing for maps
1475	$self->link_multipart_objects;
1476
1477	unless ($self->{deny_activate}) {
1478	$self->decay_objects;
1479	$self->fix_auto_apply;
1480	$self->update_buttons;
1481	Coro::cede;	1788	Coro::cede;
1482	$self->set_darkness_map;	1789
		1790	$self->_load_objects ($self->{load_path}, 1)
		1791	or return;
		1792
		1793	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1794	if delete $self->{load_original};
		1795
		1796	if (my $uniq = $self->uniq_path) {
		1797	utf8::encode $uniq;
		1798	if (aio_open $uniq, O_RDONLY, 0) {
		1799	$self->clear_unique_items;
		1800	$self->_load_objects ($uniq, 0);
		1801	}
		1802	}
		1803
		1804	Coro::cede;
		1805	# now do the right thing for maps
		1806	$self->link_multipart_objects;
1483	$self->difficulty ($self->estimate_difficulty)	1807	$self->difficulty ($self->estimate_difficulty)
1484	unless $self->difficulty;	1808	unless $self->difficulty;
1485	Coro::cede;	1809	Coro::cede;
		1810
		1811	unless ($self->{deny_activate}) {
		1812	$self->decay_objects;
		1813	$self->fix_auto_apply;
		1814	$self->update_buttons;
		1815	Coro::cede;
		1816	$self->set_darkness_map;
		1817	Coro::cede;
1486	$self->activate;	1818	$self->activate;
		1819	}
		1820
		1821	$self->in_memory (cf::MAP_IN_MEMORY);
1487	}	1822	}
1488		1823
1489	$self->post_load;	1824	$self->post_load;
1490
1491	$self->in_memory (cf::MAP_IN_MEMORY);
1492	}	1825	}
1493		1826
1494	sub customise_for {	1827	sub customise_for {
1495	my ($self, $ob) = @_;	1828	my ($self, $ob) = @_;
1496		1829
1497	return find "~" . $ob->name . "/" . $self->{path}	1830	return find "~" . $ob->name . "/" . $self->{path}
1498	if $self->per_player;	1831	if $self->per_player;
		1832
		1833	# return find "?party/" . $ob->name . "/" . $self->{path}
		1834	# if $self->per_party;
1499		1835
1500	$self	1836	$self
1501	}	1837	}
1502		1838
1503	# find and load all maps in the 3x3 area around a map	1839	# find and load all maps in the 3x3 area around a map
…		…
1614		1950
1615	sub reset_at {	1951	sub reset_at {
1616	my ($self) = @_;	1952	my ($self) = @_;
1617		1953
1618	# TODO: safety, remove and allow resettable per-player maps	1954	# TODO: safety, remove and allow resettable per-player maps
1619	return 1e99 if $self->isa ("ext::map_per_player");#d#
1620	return 1e99 if $self->{deny_reset};	1955	return 1e99 if $self->{deny_reset};
1621		1956
1622	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1957	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1623	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1958	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1624		1959
…		…
1635	my ($self) = @_;	1970	my ($self) = @_;
1636		1971
1637	my $lock = cf::lock_acquire "map_data:$self->{path}";	1972	my $lock = cf::lock_acquire "map_data:$self->{path}";
1638		1973
1639	return if $self->players;	1974	return if $self->players;
1640	return if $self->isa ("ext::map_per_player");#d#
1641		1975
1642	warn "resetting map ", $self->path;#d#	1976	warn "resetting map ", $self->path;
1643		1977
1644	$self->in_memory (cf::MAP_SWAPPED);	1978	$self->in_memory (cf::MAP_SWAPPED);
1645		1979
1646	# need to save uniques path	1980	# need to save uniques path
1647	unless ($self->{deny_save}) {	1981	unless ($self->{deny_save}) {
…		…
1679	$cf::MAP{$self->path} = $self;	2013	$cf::MAP{$self->path} = $self;
1680		2014
1681	$self->reset; # polite request, might not happen	2015	$self->reset; # polite request, might not happen
1682	}	2016	}
1683		2017
		2018	=item $maps = cf::map::tmp_maps
		2019
		2020	Returns an arrayref with all map paths of currently instantiated and saved
		2021	maps. May block.
		2022
		2023	=cut
		2024
		2025	sub tmp_maps() {
		2026	[
		2027	map {
		2028	utf8::decode $_;
		2029	/\.map$/
		2030	? normalise $_
		2031	: ()
		2032	} @{ aio_readdir $TMPDIR or [] }
		2033	]
		2034	}
		2035
		2036	=item $maps = cf::map::random_maps
		2037
		2038	Returns an arrayref with all map paths of currently instantiated and saved
		2039	random maps. May block.
		2040
		2041	=cut
		2042
		2043	sub random_maps() {
		2044	[
		2045	map {
		2046	utf8::decode $_;
		2047	/\.map$/
		2048	? normalise "?random/$_"
		2049	: ()
		2050	} @{ aio_readdir $RANDOMDIR or [] }
		2051	]
		2052	}
		2053
1684	=item cf::map::unique_maps	2054	=item cf::map::unique_maps
1685		2055
1686	Returns an arrayref of paths of all shared maps that have	2056	Returns an arrayref of paths of all shared maps that have
1687	instantiated unique items. May block.	2057	instantiated unique items. May block.
1688		2058
1689	=cut	2059	=cut
1690		2060
1691	sub unique_maps() {	2061	sub unique_maps() {
1692	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2062	[
1693	or return;	2063	map {
1694
1695	my @paths;
1696
1697	for (@$files) {
1698	utf8::decode $_;	2064	utf8::decode $_;
1699	next if /\.pst$/;	2065	/\.map$/
1700	next unless /^$PATH_SEP/o;	2066	? normalise $_
1701		2067	: ()
1702	push @paths, cf::map::normalise $_;	2068	} @{ aio_readdir $UNIQUEDIR or [] }
1703	}	2069	]
1704
1705	\@paths
1706	}	2070	}
1707		2071
1708	package cf;	2072	package cf;
1709		2073
1710	=back	2074	=back
…		…
1756		2120
1757	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2121	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1758		2122
1759	if ($self->{record_replies}) {	2123	if ($self->{record_replies}) {
1760	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2124	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2125
1761	} else {	2126	} else {
		2127	my $pl = $self->contr;
		2128
		2129	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2130	my $diag = $pl->{npc_dialog};
		2131	$diag->{pl}->ext_reply (
		2132	$diag->{id},
		2133	msgtype => "reply",
		2134	msg => $diag->{pl}->expand_cfpod ($msg),
		2135	add_topics => []
		2136	);
		2137
		2138	} else {
1762	$msg = $npc->name . " says: $msg" if $npc;	2139	$msg = $npc->name . " says: $msg" if $npc;
1763	$self->message ($msg, $flags);	2140	$self->message ($msg, $flags);
		2141	}
1764	}	2142	}
1765	}	2143	}
1766		2144
1767	=item $player_object->may ("access")	2145	=item $player_object->may ("access")
1768		2146
…		…
1816	$self->deactivate_recursive;	2194	$self->deactivate_recursive;
1817		2195
1818	return if UNIVERSAL::isa $self->map, "ext::map_link";	2196	return if UNIVERSAL::isa $self->map, "ext::map_link";
1819		2197
1820	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2198	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1821	if $self->map;	2199	if $self->map && $self->map->{path} ne "{link}";
1822		2200
1823	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2201	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1824	}	2202	}
1825		2203
1826	sub cf::object::player::leave_link {	2204	sub cf::object::player::leave_link {
1827	my ($self, $map, $x, $y) = @_;	2205	my ($self, $map, $x, $y) = @_;
		2206
		2207	return unless $self->contr->active;
1828		2208
1829	my $link_pos = delete $self->{_link_pos};	2209	my $link_pos = delete $self->{_link_pos};
1830		2210
1831	unless ($map) {	2211	unless ($map) {
1832	# restore original map position	2212	# restore original map position
…		…
1855		2235
1856	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2236	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1857	$self->enter_map ($map, $x, $y);	2237	$self->enter_map ($map, $x, $y);
1858	}	2238	}
1859		2239
1860	cf::player->attach (
1861	on_logout => sub {
1862	my ($pl) = @_;
1863
1864	# abort map switching before logout
1865	if ($pl->ob->{_link_pos}) {
1866	cf::sync_job {
1867	$pl->ob->leave_link
1868	};
1869	}
1870	},
1871	on_login => sub {
1872	my ($pl) = @_;
1873
1874	# try to abort aborted map switching on player login :)
1875	# should happen only on crashes
1876	if ($pl->ob->{_link_pos}) {
1877	$pl->ob->enter_link;
1878	(async {
1879	$pl->ob->reply (undef,
1880	"There was an internal problem at your last logout, "
1881	. "the server will try to bring you to your intended destination in a second.",
1882	cf::NDI_RED);
1883	# we need this sleep as the login has a concurrent enter_exit running
1884	# and this sleep increases chances of the player not ending up in scorn
1885	Coro::Timer::sleep 1;
1886	$pl->ob->leave_link;
1887	})->prio (2);
1888	}
1889	},
1890	);
1891
1892	=item $player_object->goto ($path, $x, $y)	2240	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1893		2241
		2242	Moves the player to the given map-path and coordinates by first freezing
		2243	her, loading and preparing them map, calling the provided $check callback
		2244	that has to return the map if sucecssful, and then unfreezes the player on
		2245	the new (success) or old (failed) map position.
		2246
1894	=cut	2247	=cut
		2248
		2249	our $GOTOGEN;
1895		2250
1896	sub cf::object::player::goto {	2251	sub cf::object::player::goto {
1897	my ($self, $path, $x, $y) = @_;	2252	my ($self, $path, $x, $y, $check) = @_;
		2253
		2254	# do generation counting so two concurrent goto's will be executed in-order
		2255	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1898		2256
1899	$self->enter_link;	2257	$self->enter_link;
1900		2258
1901	(async {	2259	(async {
1902	my $map = eval {	2260	my $map = eval {
1903	my $map = cf::map::find $path;	2261	my $map = cf::map::find $path;
		2262
		2263	if ($map) {
1904	$map = $map->customise_for ($self) if $map;	2264	$map = $map->customise_for ($self);
		2265	$map = $check->($map) if $check && $map;
		2266	} else {
		2267	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2268	}
		2269
1905	$map	2270	$map
		2271	};
		2272
		2273	if ($@) {
		2274	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2275	LOG llevError | logBacktrace, Carp::longmess $@;
1906	} or	2276	}
1907	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1908		2277
		2278	if ($gen == $self->{_goto_generation}) {
		2279	delete $self->{_goto_generation};
1909	$self->leave_link ($map, $x, $y);	2280	$self->leave_link ($map, $x, $y);
		2281	}
1910	})->prio (1);	2282	})->prio (1);
1911	}	2283	}
1912		2284
1913	=item $player_object->enter_exit ($exit_object)	2285	=item $player_object->enter_exit ($exit_object)
1914		2286
…		…
1953		2325
1954	$rmp->{random_seed} ||= $exit->random_seed;	2326	$rmp->{random_seed} ||= $exit->random_seed;
1955		2327
1956	my $data = cf::to_json $rmp;	2328	my $data = cf::to_json $rmp;
1957	my $md5 = Digest::MD5::md5_hex $data;	2329	my $md5 = Digest::MD5::md5_hex $data;
1958	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2330	my $meta = "$RANDOMDIR/$md5.meta";
1959		2331
1960	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2332	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1961	aio_write $fh, 0, (length $data), $data, 0;	2333	aio_write $fh, 0, (length $data), $data, 0;
1962	undef $fh;	2334	undef $fh;
1963	aio_rename "$meta~", $meta;	2335	aio_rename "$meta~", $meta;
…		…
2019		2391
2020	utf8::encode $text;	2392	utf8::encode $text;
2021	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2393	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2022	}	2394	}
2023		2395
		2396	=item $client->send_msg ($color, $type, $msg, [extra...])
		2397
		2398	Send a drawinfo or msg packet to the client, formatting the msg for the
		2399	client if neccessary. C<$type> should be a string identifying the type of
		2400	the message, with C<log> being the default. If C<$color> is negative, suppress
		2401	the message unless the client supports the msg packet.
		2402
		2403	=cut
		2404
		2405	sub cf::client::send_msg {
		2406	my ($self, $color, $type, $msg, @extra) = @_;
		2407
		2408	$msg = $self->pl->expand_cfpod ($msg);
		2409
		2410	if ($self->can_msg) {
		2411	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2412	} else {
		2413	# replace some tags by gcfclient-compatible ones
		2414	for ($msg) {
		2415	1 while
		2416	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2417	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2418	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2419	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2420	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2421	}
		2422
		2423	if ($color >= 0) {
		2424	if (0 && $msg =~ /\[/) {
		2425	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2426	} else {
		2427	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2428	$self->send_packet ("drawinfo $color $msg")
		2429	}
		2430	}
		2431	}
		2432	}
		2433
2024	=item $client->ext_event ($type, %msg)	2434	=item $client->ext_event ($type, %msg)
2025		2435
2026	Sends an exti event to the client.	2436	Sends an ext event to the client.
2027		2437
2028	=cut	2438	=cut
2029		2439
2030	sub cf::client::ext_event($$%) {	2440	sub cf::client::ext_event($$%) {
2031	my ($self, $type, %msg) = @_;	2441	my ($self, $type, %msg) = @_;
2032		2442
2033	$msg{msgtype} = "event_$type";	2443	$msg{msgtype} = "event_$type";
2034	$self->send_packet ("ext " . cf::to_json \%msg);	2444	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2035	}	2445	}
2036		2446
2037	=item $success = $client->query ($flags, "text", \&cb)	2447	=item $success = $client->query ($flags, "text", \&cb)
2038		2448
2039	Queues a query to the client, calling the given callback with	2449	Queues a query to the client, calling the given callback with
2040	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2450	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2041	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2451	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2042		2452
2043	Queries can fail, so check the return code. Or don't, as queries will become	2453	Queries can fail, so check the return code. Or don't, as queries will
2044	reliable at some point in the future.	2454	become reliable at some point in the future.
2045		2455
2046	=cut	2456	=cut
2047		2457
2048	sub cf::client::query {	2458	sub cf::client::query {
2049	my ($self, $flags, $text, $cb) = @_;	2459	my ($self, $flags, $text, $cb) = @_;
…		…
2057	utf8::encode $text;	2467	utf8::encode $text;
2058	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2468	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2059		2469
2060	$self->send_packet ($self->{query_queue}[0][0])	2470	$self->send_packet ($self->{query_queue}[0][0])
2061	if @{ $self->{query_queue} } == 1;	2471	if @{ $self->{query_queue} } == 1;
		2472
		2473	1
2062	}	2474	}
2063		2475
2064	cf::client->attach (	2476	cf::client->attach (
		2477	on_connect => sub {
		2478	my ($ns) = @_;
		2479
		2480	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2481	},
2065	on_reply => sub {	2482	on_reply => sub {
2066	my ($ns, $msg) = @_;	2483	my ($ns, $msg) = @_;
2067		2484
2068	# this weird shuffling is so that direct followup queries	2485	# this weird shuffling is so that direct followup queries
2069	# get handled first	2486	# get handled first
…		…
2080	$ns->send_packet ($ns->{query_queue}[0][0]);	2497	$ns->send_packet ($ns->{query_queue}[0][0]);
2081	} else {	2498	} else {
2082	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2499	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2083	}	2500	}
2084	}	2501	}
		2502	},
		2503	on_exticmd => sub {
		2504	my ($ns, $buf) = @_;
		2505
		2506	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2507
		2508	if (ref $msg) {
		2509	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2510	if (my %reply = $cb->($ns, $msg)) {
		2511	$reply{msgid} = $msg->{msgid};
		2512	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2513	}
		2514	}
		2515	} else {
		2516	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2517	}
		2518
		2519	cf::override;
2085	},	2520	},
2086	);	2521	);
2087		2522
2088	=item $client->async (\&cb)	2523	=item $client->async (\&cb)
2089		2524
…		…
2228	=back	2663	=back
2229		2664
2230	=cut	2665	=cut
2231		2666
2232	#############################################################################	2667	#############################################################################
2233
2234	=head2 EXTENSION DATABASE SUPPORT
2235
2236	Crossfire maintains a very simple database for extension use. It can
2237	currently store anything that can be serialised using Storable, which
2238	excludes objects.
2239
2240	The parameter C<$family> should best start with the name of the extension
2241	using it, it should be unique.
2242
2243	=over 4
2244
2245	=item $value = cf::db_get $family => $key
2246
2247	Returns a single value from the database.
2248
2249	=item cf::db_put $family => $key => $value
2250
2251	Stores the given C<$value> in the family.
2252
2253	=cut
2254
2255	our $DB;
2256
2257	sub db_init {
2258	unless ($DB) {
2259	$DB = BDB::db_create $DB_ENV;
2260
2261	cf::sync_job {
2262	eval {
2263	$DB->set_flags (BDB::CHKSUM);
2264
2265	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2266	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2267	cf::cleanup "db_open(db): $!" if $!;
2268	};
2269	cf::cleanup "db_open(db): $@" if $@;
2270	};
2271
2272	my $path = cf::localdir . "/database.pst";
2273	if (stat $path) {
2274	cf::sync_job {
2275	my $pst = Storable::retrieve $path;
2276
2277	cf::db_put (board => data => $pst->{board});
2278	cf::db_put (guildrules => data => $pst->{guildrules});
2279	cf::db_put (rent => balance => $pst->{rent}{balance});
2280	BDB::db_env_txn_checkpoint $DB_ENV;
2281
2282	unlink $path;
2283	};
2284	}
2285	}
2286	}
2287
2288	sub db_get($$) {
2289	my $key = "$_[0]/$_[1]";
2290
2291	cf::sync_job {
2292	BDB::db_get $DB, undef, $key, my $data;
2293
2294	$! ? ()
2295	: Compress::LZF::sthaw $data
2296	}
2297	}
2298
2299	sub db_put($$$) {
2300	BDB::dbreq_pri 4;
2301	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2302	}
2303
2304	#############################################################################
2305	# the server's init and main functions	2668	# the server's init and main functions
2306		2669
2307	sub load_facedata {	2670	sub load_facedata($) {
2308	my $path = sprintf "%s/facedata", cf::datadir;	2671	my ($path) = @_;
2309		2672
2310	warn "loading facedata from $path\n";	2673	warn "loading facedata from $path\n";
2311		2674
2312	my $faces;	2675	my $facedata;
2313	0 < aio_load $path, $faces	2676	0 < aio_load $path, $facedata
2314	or die "$path: $!";	2677	or die "$path: $!";
2315		2678
2316	Coro::cede;
2317	$faces = Storable::thaw $faces;	2679	$facedata = Coro::Storable::thaw $facedata;
2318	Coro::cede;
2319		2680
2320	my $meta = delete $faces->{""};
2321	$meta->{version} == 1	2681	$facedata->{version} == 2
2322	or cf::cleanup "$path: version mismatch, cannot proceed.";	2682	or cf::cleanup "$path: version mismatch, cannot proceed.";
2323		2683
		2684	{
		2685	my $faces = $facedata->{faceinfo};
		2686
2324	while (my ($face, $info) = each %$faces) {	2687	while (my ($face, $info) = each %$faces) {
2325	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2688	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2326	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2689	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2327	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2690	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2328	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2691	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2329	Coro::cede;	2692	Coro::cede;
2330	}	2693	}
2331		2694
2332	while (my ($face, $info) = each %$faces) {	2695	while (my ($face, $info) = each %$faces) {
2333	next unless $info->{smooth};	2696	next unless $info->{smooth};
2334	my $idx = cf::face::find $face	2697	my $idx = cf::face::find $face
2335	or next;	2698	or next;
2336	if (my $smooth = cf::face::find $info->{smooth}) {	2699	if (my $smooth = cf::face::find $info->{smooth}) {
2337	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2700	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
2338	} else {	2701	} else {
2339	warn "smooth face '$info->{smooth}' not found for face '$face'";	2702	warn "smooth face '$info->{smooth}' not found for face '$face'";
2340	}	2703	}
2341	Coro::cede;	2704	Coro::cede;
		2705	}
		2706	}
		2707
		2708	{
		2709	my $anims = $facedata->{animinfo};
		2710
		2711	while (my ($anim, $info) = each %$anims) {
		2712	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2713	Coro::cede;
		2714	}
		2715
		2716	cf::anim::invalidate_all; # d'oh
2342	}	2717	}
2343		2718
2344	1	2719	1
2345	}	2720	}
2346		2721
		2722	sub reload_regions {
		2723	load_resource_file "$MAPDIR/regions"
		2724	or die "unable to load regions file\n";
		2725	}
		2726
		2727	sub reload_facedata {
		2728	load_facedata "$DATADIR/facedata"
		2729	or die "unable to load facedata\n";
		2730	}
		2731
		2732	sub reload_archetypes {
		2733	load_resource_file "$DATADIR/archetypes"
		2734	or die "unable to load archetypes\n";
		2735	#d# NEED to laod twice to resolve forward references
		2736	# this really needs to be done in an extra post-pass
		2737	# (which needs to be synchronous, so solve it differently)
		2738	load_resource_file "$DATADIR/archetypes"
		2739	or die "unable to load archetypes\n";
		2740	}
		2741
		2742	sub reload_treasures {
		2743	load_resource_file "$DATADIR/treasures"
		2744	or die "unable to load treasurelists\n";
		2745	}
		2746
2347	sub reload_resources {	2747	sub reload_resources {
2348	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2748	warn "reloading resource files...\n";
2349	or die "unable to load regions file\n";#d#	2749
		2750	reload_regions;
2350	load_facedata	2751	reload_facedata;
2351	or die "unable to load facedata\n";#d#	2752	#reload_archetypes;#d#
		2753	reload_archetypes;
		2754	reload_treasures;
		2755
		2756	warn "finished reloading resource files\n";
2352	}	2757	}
2353		2758
2354	sub init {	2759	sub init {
2355	reload_resources;	2760	reload_resources;
2356	}	2761	}
2357		2762
2358	sub cfg_load {	2763	sub cfg_load {
2359	open my $fh, "<:utf8", cf::confdir . "/config"	2764	open my $fh, "<:utf8", "$CONFDIR/config"
2360	or return;	2765	or return;
2361		2766
2362	local $/;	2767	local $/;
2363	*CFG = YAML::Syck::Load <$fh>;	2768	*CFG = YAML::Syck::Load <$fh>;
2364		2769
…		…
2409	},	2814	},
2410	);	2815	);
2411	}	2816	}
2412	}	2817	}
2413		2818
		2819	sub write_runtime {
		2820	my $runtime = "$LOCALDIR/runtime";
		2821
		2822	# first touch the runtime file to show we are still running:
		2823	# the fsync below can take a very very long time.
		2824
		2825	IO::AIO::aio_utime $runtime, undef, undef;
		2826
		2827	my $guard = cf::lock_acquire "write_runtime";
		2828
		2829	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2830	or return;
		2831
		2832	my $value = $cf::RUNTIME + 90 + 10;
		2833	# 10 is the runtime save interval, for a monotonic clock
		2834	# 60 allows for the watchdog to kill the server.
		2835
		2836	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2837	and return;
		2838
		2839	# always fsync - this file is important
		2840	aio_fsync $fh
		2841	and return;
		2842
		2843	# touch it again to show we are up-to-date
		2844	aio_utime $fh, undef, undef;
		2845
		2846	close $fh
		2847	or return;
		2848
		2849	aio_rename "$runtime~", $runtime
		2850	and return;
		2851
		2852	warn "runtime file written.\n";
		2853
		2854	1
		2855	}
		2856
2414	sub emergency_save() {	2857	sub emergency_save() {
2415	my $freeze_guard = cf::freeze_mainloop;	2858	my $freeze_guard = cf::freeze_mainloop;
2416		2859
2417	warn "enter emergency perl save\n";	2860	warn "enter emergency perl save\n";
2418		2861
…		…
2449		2892
2450	warn Carp::longmess "post_cleanup backtrace"	2893	warn Carp::longmess "post_cleanup backtrace"
2451	if $make_core;	2894	if $make_core;
2452	}	2895	}
2453		2896
2454	sub reload() {	2897	sub do_reload_perl() {
2455	# can/must only be called in main	2898	# can/must only be called in main
2456	if ($Coro::current != $Coro::main) {	2899	if ($Coro::current != $Coro::main) {
2457	warn "can only reload from main coroutine";	2900	warn "can only reload from main coroutine";
2458	return;	2901	return;
2459	}	2902	}
…		…
2493	%EXT_CORO = ();	2936	%EXT_CORO = ();
2494		2937
2495	warn "removing commands";	2938	warn "removing commands";
2496	%COMMAND = ();	2939	%COMMAND = ();
2497		2940
2498	warn "removing ext commands";	2941	warn "removing ext/exti commands";
2499	%EXTCMD = ();	2942	%EXTCMD = ();
		2943	%EXTICMD = ();
2500		2944
2501	warn "unloading/nuking all extensions";	2945	warn "unloading/nuking all extensions";
2502	for my $pkg (@EXTS) {	2946	for my $pkg (@EXTS) {
2503	warn "... unloading $pkg";	2947	warn "... unloading $pkg";
2504		2948
…		…
2534	Symbol::delete_package "safe::$_"	2978	Symbol::delete_package "safe::$_"
2535	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2979	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2536		2980
2537	warn "unloading cf.pm \"a bit\"";	2981	warn "unloading cf.pm \"a bit\"";
2538	delete $INC{"cf.pm"};	2982	delete $INC{"cf.pm"};
		2983	delete $INC{"cf/pod.pm"};
2539		2984
2540	# don't, removes xs symbols, too,	2985	# don't, removes xs symbols, too,
2541	# and global variables created in xs	2986	# and global variables created in xs
2542	#Symbol::delete_package __PACKAGE__;	2987	#Symbol::delete_package __PACKAGE__;
2543		2988
…		…
2558	warn "reattaching attachments to maps";	3003	warn "reattaching attachments to maps";
2559	reattach $_ for values %MAP;	3004	reattach $_ for values %MAP;
2560	warn "reattaching attachments to players";	3005	warn "reattaching attachments to players";
2561	reattach $_ for values %PLAYER;	3006	reattach $_ for values %PLAYER;
2562		3007
2563	warn "loading reloadable resources";
2564	reload_resources;
2565
2566	warn "leaving sync_job";	3008	warn "leaving sync_job";
2567		3009
2568	1	3010	1
2569	} or do {	3011	} or do {
2570	warn $@;	3012	warn $@;
…		…
2575	warn "reloaded";	3017	warn "reloaded";
2576	};	3018	};
2577		3019
2578	our $RELOAD_WATCHER; # used only during reload	3020	our $RELOAD_WATCHER; # used only during reload
2579		3021
		3022	sub reload_perl() {
		3023	# doing reload synchronously and two reloads happen back-to-back,
		3024	# coro crashes during coro_state_free->destroy here.
		3025
		3026	$RELOAD_WATCHER ||= Event->timer (
		3027	reentrant => 0,
		3028	after => 0,
		3029	data => WF_AUTOCANCEL,
		3030	cb => sub {
		3031	do_reload_perl;
		3032	undef $RELOAD_WATCHER;
		3033	},
		3034	);
		3035	}
		3036
2580	register_command "reload" => sub {	3037	register_command "reload" => sub {
2581	my ($who, $arg) = @_;	3038	my ($who, $arg) = @_;
2582		3039
2583	if ($who->flag (FLAG_WIZ)) {	3040	if ($who->flag (FLAG_WIZ)) {
2584	$who->message ("reloading server.");	3041	$who->message ("reloading server.");
2585		3042	async { reload_perl };
2586	# doing reload synchronously and two reloads happen back-to-back,
2587	# coro crashes during coro_state_free->destroy here.
2588
2589	$RELOAD_WATCHER ||= Event->timer (
2590	reentrant => 0,
2591	after => 0,
2592	data => WF_AUTOCANCEL,
2593	cb => sub {
2594	reload;
2595	undef $RELOAD_WATCHER;
2596	},
2597	);
2598	}	3043	}
2599	};	3044	};
2600		3045
2601	unshift @INC, $LIBDIR;	3046	unshift @INC, $LIBDIR;
2602		3047
2603	my $bug_warning = 0;	3048	my $bug_warning = 0;
2604		3049
		3050	our @WAIT_FOR_TICK;
		3051	our @WAIT_FOR_TICK_BEGIN;
		3052
		3053	sub wait_for_tick {
		3054	return unless $TICK_WATCHER->is_active;
		3055	return if $Coro::current == $Coro::main;
		3056
		3057	my $signal = new Coro::Signal;
		3058	push @WAIT_FOR_TICK, $signal;
		3059	$signal->wait;
		3060	}
		3061
		3062	sub wait_for_tick_begin {
		3063	return unless $TICK_WATCHER->is_active;
		3064	return if $Coro::current == $Coro::main;
		3065
		3066	my $signal = new Coro::Signal;
		3067	push @WAIT_FOR_TICK_BEGIN, $signal;
		3068	$signal->wait;
		3069	}
		3070
		3071	my $min = 1e6;#d#
		3072	my $avg = 10;
2605	$TICK_WATCHER = Event->timer (	3073	$TICK_WATCHER = Event->timer (
2606	reentrant => 0,	3074	reentrant => 0,
2607	parked => 1,	3075	parked => 1,
2608	prio => 0,	3076	prio => 0,
2609	at => $NEXT_TICK || $TICK,	3077	at => $NEXT_TICK || $TICK,
…		…
2613	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3081	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2614	unless ++$bug_warning > 10;	3082	unless ++$bug_warning > 10;
2615	return;	3083	return;
2616	}	3084	}
2617		3085
2618	$NOW = Event::time;	3086	$NOW = $tick_start = Event::time;
2619		3087
2620	cf::server_tick; # one server iteration	3088	cf::server_tick; # one server iteration
		3089
		3090	0 && sync_job {#d#
		3091	for(1..10) {
		3092	my $t = Event::time;
		3093	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3094	or die;
		3095
		3096	$map->width (50);
		3097	$map->height (50);
		3098	$map->alloc;
		3099	$map->_load_objects ("/tmp/x.map", 1);
		3100	my $t = Event::time - $t;
		3101
		3102	#next unless $t < 0.0013;#d#
		3103	if ($t < $min) {
		3104	$min = $t;
		3105	}
		3106	$avg = $avg * 0.99 + $t * 0.01;
		3107	}
		3108	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3109	exit 0;
		3110	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3111	};
		3112
2621	$RUNTIME += $TICK;	3113	$RUNTIME += $TICK;
2622	$NEXT_TICK += $TICK;	3114	$NEXT_TICK += $TICK;
2623		3115
2624	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3116	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2625	$NEXT_RUNTIME_WRITE = $NOW + 10;	3117	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2627	write_runtime	3119	write_runtime
2628	or warn "ERROR: unable to write runtime file: $!";	3120	or warn "ERROR: unable to write runtime file: $!";
2629	};	3121	};
2630	}	3122	}
2631		3123
2632	$WAIT_FOR_TICK->broadcast;
2633	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2634
2635	# my $AFTER = Event::time;	3124	# my $AFTER = Event::time;
2636	# warn $AFTER - $NOW;#d#	3125	# warn $AFTER - $NOW;#d#
2637		3126
		3127	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3128	$sig->send;
		3129	}
		3130	while (my $sig = shift @WAIT_FOR_TICK) {
		3131	$sig->send;
		3132	}
		3133
		3134	$NOW = Event::time;
		3135
2638	# if we are delayed by four ticks or more, skip them all	3136	# if we are delayed by four ticks or more, skip them all
2639	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3137	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2640		3138
2641	$TICK_WATCHER->at ($NEXT_TICK);	3139	$TICK_WATCHER->at ($NEXT_TICK);
2642	$TICK_WATCHER->start;	3140	$TICK_WATCHER->start;
		3141
		3142	$LOAD = ($NOW - $tick_start) / $TICK;
		3143	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3144
		3145	_post_tick;
		3146
		3147
2643	},	3148	},
2644	);	3149	);
2645		3150
2646	{	3151	{
2647	BDB::max_poll_time $TICK * 0.1;	3152	BDB::max_poll_time $TICK * 0.1;
…		…
2675		3180
2676	cf::sync_job {	3181	cf::sync_job {
2677	eval {	3182	eval {
2678	BDB::db_env_open	3183	BDB::db_env_open
2679	$DB_ENV,	3184	$DB_ENV,
2680	$BDB_ENV_DIR,	3185	$BDBDIR,
2681	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3186	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2682	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3187	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2683	0666;	3188	0666;
2684		3189
2685	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3190	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2686		3191
2687	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3192	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2688	$DB_ENV->set_lk_detect;	3193	$DB_ENV->set_lk_detect;
2689	};	3194	};
2690		3195
…		…
2706	prio => 6,	3211	prio => 6,
2707	cb => \&IO::AIO::poll_cb,	3212	cb => \&IO::AIO::poll_cb,
2708	);	3213	);
2709	}	3214	}
2710		3215
		3216	my $_log_backtrace;
		3217
		3218	sub _log_backtrace {
		3219	my ($msg, @addr) = @_;
		3220
		3221	$msg =~ s/\n//;
		3222
		3223	# limit the # of concurrent backtraces
		3224	if ($_log_backtrace < 2) {
		3225	++$_log_backtrace;
		3226	async {
		3227	my @bt = fork_call {
		3228	@addr = map { sprintf "%x", $_ } @addr;
		3229	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3230	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3231	or die "addr2line: $!";
		3232
		3233	my @funcs;
		3234	my @res = <$fh>;
		3235	chomp for @res;
		3236	while (@res) {
		3237	my ($func, $line) = splice @res, 0, 2, ();
		3238	push @funcs, "[$func] $line";
		3239	}
		3240
		3241	@funcs
		3242	};
		3243
		3244	LOG llevInfo, "[ABT] $msg\n";
		3245	LOG llevInfo, "[ABT] $_\n" for @bt;
		3246	--$_log_backtrace;
		3247	};
		3248	} else {
		3249	LOG llevInfo, "[ABT] $msg\n";
		3250	LOG llevInfo, "[ABT] [suppressed]\n";
		3251	}
		3252	}
		3253
		3254	# load additional modules
		3255	use cf::pod;
		3256
2711	END { cf::emergency_save }	3257	END { cf::emergency_save }
2712		3258
2713	1	3259	1
2714		3260

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