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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.232 by root, Wed Apr 4 02:07:19 2007 UTC vs.
Revision 1.289 by root, Sat Jun 30 03:00:54 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"
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) = @_;
…		…
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];
967		1211
968	(playerdir $login) . "/$login.pl"	1212	(playerdir $login) . "/playerdata"
969	}	1213	}
970		1214
971	sub find_active($) {	1215	sub find_active($) {
972	$cf::PLAYER{$_[0]}	1216	$cf::PLAYER{$_[0]}
973	and $cf::PLAYER{$_[0]}->active	1217	and $cf::PLAYER{$_[0]}->active
…		…
986	my $login = $_[0];	1230	my $login = $_[0];
987		1231
988	my $guard = cf::lock_acquire "user_find:$login";	1232	my $guard = cf::lock_acquire "user_find:$login";
989		1233
990	$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
991	my $pl = load_pl path $login	1242	my $pl = load_pl path $login
992	or return;	1243	or return;
993	$cf::PLAYER{$login} = $pl	1244	$cf::PLAYER{$login} = $pl
994	}	1245	}
995	}	1246	}
…		…
1079	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1080		1331
1081	=cut	1332	=cut
1082		1333
1083	sub list_logins {	1334	sub list_logins {
1084	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1085	or return [];	1336	or return [];
1086		1337
1087	my @logins;	1338	my @logins;
1088		1339
1089	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1124	}	1375	}
1125		1376
1126	\@paths	1377	\@paths
1127	}	1378	}
1128		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
1129	=item $player->ext_reply ($msgid, %msg)	1413	=item $player->ext_reply ($msgid, %msg)
1130		1414
1131	Sends an ext reply to the player.	1415	Sends an ext reply to the player.
1132		1416
1133	=cut	1417	=cut
1134		1418
1135	sub ext_reply($$%) {	1419	sub ext_reply($$%) {
1136	my ($self, $id, %msg) = @_;	1420	my ($self, $id, %msg) = @_;
1137		1421
1138	$msg{msgid} = $id;	1422	$msg{msgid} = $id;
1139
1140	$self->send ("ext " . cf::to_json \%msg);	1423	$self->send ("ext " . cf::to_json \%msg);
1141	}	1424	}
1142		1425
1143	=item $player->ext_event ($type, %msg)	1426	=item $player->ext_event ($type, %msg)
1144		1427
…		…
1150	my ($self, $type, %msg) = @_;	1433	my ($self, $type, %msg) = @_;
1151		1434
1152	$self->ns->ext_event ($type, %msg);	1435	$self->ns->ext_event ($type, %msg);
1153	}	1436	}
1154		1437
1155	package cf;	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	$match
		1465	}
1156		1466
1157	=back	1467	=back
1158
1159		1468
1160	=head3 cf::map	1469	=head3 cf::map
1161		1470
1162	=over 4	1471	=over 4
1163		1472
…		…
1218	my ($self, $merge) = @_;	1527	my ($self, $merge) = @_;
1219		1528
1220	# we have to keep some variables in memory intact	1529	# we have to keep some variables in memory intact
1221	local $self->{path};	1530	local $self->{path};
1222	local $self->{load_path};	1531	local $self->{load_path};
1223	local $self->{deny_save};
1224	local $self->{deny_reset};
1225		1532
1226	$self->SUPER::thawer_merge ($merge);	1533	$self->SUPER::thawer_merge ($merge);
1227	}	1534	}
1228		1535
1229	sub normalise {	1536	sub normalise {
…		…
1301		1608
1302	# the original (read-only) location	1609	# the original (read-only) location
1303	sub load_path {	1610	sub load_path {
1304	my ($self) = @_;	1611	my ($self) = @_;
1305		1612
1306	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1613	"$MAPDIR/$self->{path}.map"
1307	}	1614	}
1308		1615
1309	# the temporary/swap location	1616	# the temporary/swap location
1310	sub save_path {	1617	sub save_path {
1311	my ($self) = @_;	1618	my ($self) = @_;
1312		1619
1313	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1620	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1314	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1621	"$TMPDIR/$path.map"
1315	}	1622	}
1316		1623
1317	# the unique path, undef == no special unique path	1624	# the unique path, undef == no special unique path
1318	sub uniq_path {	1625	sub uniq_path {
1319	my ($self) = @_;	1626	my ($self) = @_;
1320		1627
1321	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1628	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1322	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1629	"$UNIQUEDIR/$path"
1323	}	1630	}
1324		1631
1325	# and all this just because we cannot iterate over	1632	# and all this just because we cannot iterate over
1326	# all maps in C++...	1633	# all maps in C++...
1327	sub change_all_map_light {	1634	sub change_all_map_light {
1328	my ($change) = @_;	1635	my ($change) = @_;
1329		1636
1330	$_->change_map_light ($change)	1637	$_->change_map_light ($change)
1331	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	$self->do_decay_objects;
1332	}	1647	}
1333		1648
1334	sub unlink_save {	1649	sub unlink_save {
1335	my ($self) = @_;	1650	my ($self) = @_;
1336		1651
…		…
1394	$self->load_header_orig	1709	$self->load_header_orig
1395	or return;	1710	or return;
1396	$self->prepare_orig;	1711	$self->prepare_orig;
1397	}	1712	}
1398		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
1399	1	1720	1
1400	}	1721	}
1401		1722
1402	sub find;	1723	sub find;
1403	sub find {	1724	sub find {
…		…
1415	$map->{last_save} = $cf::RUNTIME;	1736	$map->{last_save} = $cf::RUNTIME;
1416		1737
1417	$map->load_header	1738	$map->load_header
1418	or return;	1739	or return;
1419		1740
1420	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1741	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1421	# doing this can freeze the server in a sync job, obviously	1742	# doing this can freeze the server in a sync job, obviously
1422	#$cf::WAIT_FOR_TICK->wait;	1743	#$cf::WAIT_FOR_TICK->wait;
1423	$map->reset;	1744	$map->reset;
1424	undef $guard;	1745	undef $guard;
1425	return find $path;	1746	return find $path;
…		…
1436	my ($self) = @_;	1757	my ($self) = @_;
1437		1758
1438	local $self->{deny_reset} = 1; # loading can take a long time	1759	local $self->{deny_reset} = 1; # loading can take a long time
1439		1760
1440	my $path = $self->{path};	1761	my $path = $self->{path};
		1762
		1763	{
1441	my $guard = cf::lock_acquire "map_load:$path";	1764	my $guard = cf::lock_acquire "map_load:$path";
1442		1765
1443	return if $self->in_memory != cf::MAP_SWAPPED;	1766	return if $self->in_memory != cf::MAP_SWAPPED;
1444		1767
1445	$self->in_memory (cf::MAP_LOADING);	1768	$self->in_memory (cf::MAP_LOADING);
1446		1769
1447	$self->alloc;	1770	$self->alloc;
1448		1771
1449	$self->pre_load;	1772	$self->pre_load;
1450
1451	$self->_load_objects ($self->{load_path}, 1)
1452	or return;
1453
1454	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1455	if delete $self->{load_original};
1456
1457	if (my $uniq = $self->uniq_path) {
1458	utf8::encode $uniq;
1459	if (aio_open $uniq, O_RDONLY, 0) {
1460	$self->clear_unique_items;
1461	$self->_load_objects ($uniq, 0);
1462	}
1463	}
1464
1465	Coro::cede;
1466
1467	# now do the right thing for maps
1468	$self->link_multipart_objects;
1469
1470	unless ($self->{deny_activate}) {
1471	$self->decay_objects;
1472	$self->fix_auto_apply;
1473	$self->update_buttons;
1474	Coro::cede;	1773	Coro::cede;
1475	$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;
1476	$self->difficulty ($self->estimate_difficulty)	1792	$self->difficulty ($self->estimate_difficulty)
1477	unless $self->difficulty;	1793	unless $self->difficulty;
1478	Coro::cede;	1794	Coro::cede;
		1795
		1796	unless ($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;
1479	$self->activate;	1803	$self->activate;
		1804	}
		1805
		1806	$self->in_memory (cf::MAP_IN_MEMORY);
1480	}	1807	}
1481		1808
1482	$self->post_load;	1809	$self->post_load;
1483
1484	$self->in_memory (cf::MAP_IN_MEMORY);
1485	}	1810	}
1486		1811
1487	sub customise_for {	1812	sub customise_for {
1488	my ($self, $ob) = @_;	1813	my ($self, $ob) = @_;
1489		1814
1490	return find "~" . $ob->name . "/" . $self->{path}	1815	return find "~" . $ob->name . "/" . $self->{path}
1491	if $self->per_player;	1816	if $self->per_player;
		1817
		1818	# return find "?party/" . $ob->name . "/" . $self->{path}
		1819	# if $self->per_party;
1492		1820
1493	$self	1821	$self
1494	}	1822	}
1495		1823
1496	# find and load all maps in the 3x3 area around a map	1824	# find and load all maps in the 3x3 area around a map
…		…
1607		1935
1608	sub reset_at {	1936	sub reset_at {
1609	my ($self) = @_;	1937	my ($self) = @_;
1610		1938
1611	# TODO: safety, remove and allow resettable per-player maps	1939	# TODO: safety, remove and allow resettable per-player maps
1612	return 1e99 if $self->isa ("ext::map_per_player");#d#
1613	return 1e99 if $self->{deny_reset};	1940	return 1e99 if $self->{deny_reset};
1614		1941
1615	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1942	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1616	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1943	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1617		1944
…		…
1628	my ($self) = @_;	1955	my ($self) = @_;
1629		1956
1630	my $lock = cf::lock_acquire "map_data:$self->{path}";	1957	my $lock = cf::lock_acquire "map_data:$self->{path}";
1631		1958
1632	return if $self->players;	1959	return if $self->players;
1633	return if $self->isa ("ext::map_per_player");#d#
1634		1960
1635	warn "resetting map ", $self->path;#d#	1961	warn "resetting map ", $self->path;
1636		1962
1637	$self->in_memory (cf::MAP_SWAPPED);	1963	$self->in_memory (cf::MAP_SWAPPED);
1638		1964
1639	# need to save uniques path	1965	# need to save uniques path
1640	unless ($self->{deny_save}) {	1966	unless ($self->{deny_save}) {
…		…
1672	$cf::MAP{$self->path} = $self;	1998	$cf::MAP{$self->path} = $self;
1673		1999
1674	$self->reset; # polite request, might not happen	2000	$self->reset; # polite request, might not happen
1675	}	2001	}
1676		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
1677	=item cf::map::unique_maps	2039	=item cf::map::unique_maps
1678		2040
1679	Returns an arrayref of paths of all shared maps that have	2041	Returns an arrayref of paths of all shared maps that have
1680	instantiated unique items. May block.	2042	instantiated unique items. May block.
1681		2043
1682	=cut	2044	=cut
1683		2045
1684	sub unique_maps() {	2046	sub unique_maps() {
1685	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2047	[
1686	or return;	2048	map {
1687
1688	my @paths;
1689
1690	for (@$files) {
1691	utf8::decode $_;	2049	utf8::decode $_;
1692	next if /\.pst$/;	2050	/\.map$/
1693	next unless /^$PATH_SEP/o;	2051	? normalise $_
1694		2052	: ()
1695	push @paths, cf::map::normalise $_;	2053	} @{ aio_readdir $UNIQUEDIR or [] }
1696	}	2054	]
1697
1698	\@paths
1699	}	2055	}
1700		2056
1701	package cf;	2057	package cf;
1702		2058
1703	=back	2059	=back
…		…
1749		2105
1750	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2106	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1751		2107
1752	if ($self->{record_replies}) {	2108	if ($self->{record_replies}) {
1753	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2109	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2110
1754	} 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 {
1755	$msg = $npc->name . " says: $msg" if $npc;	2124	$msg = $npc->name . " says: $msg" if $npc;
1756	$self->message ($msg, $flags);	2125	$self->message ($msg, $flags);
		2126	}
1757	}	2127	}
1758	}	2128	}
1759		2129
1760	=item $player_object->may ("access")	2130	=item $player_object->may ("access")
1761		2131
…		…
1809	$self->deactivate_recursive;	2179	$self->deactivate_recursive;
1810		2180
1811	return if UNIVERSAL::isa $self->map, "ext::map_link";	2181	return if UNIVERSAL::isa $self->map, "ext::map_link";
1812		2182
1813	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2183	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1814	if $self->map;	2184	if $self->map && $self->map->{path} ne "{link}";
1815		2185
1816	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2186	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1817	}	2187	}
1818		2188
1819	sub cf::object::player::leave_link {	2189	sub cf::object::player::leave_link {
1820	my ($self, $map, $x, $y) = @_;	2190	my ($self, $map, $x, $y) = @_;
		2191
		2192	return unless $self->contr->active;
1821		2193
1822	my $link_pos = delete $self->{_link_pos};	2194	my $link_pos = delete $self->{_link_pos};
1823		2195
1824	unless ($map) {	2196	unless ($map) {
1825	# restore original map position	2197	# restore original map position
…		…
1848		2220
1849	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2221	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1850	$self->enter_map ($map, $x, $y);	2222	$self->enter_map ($map, $x, $y);
1851	}	2223	}
1852		2224
1853	cf::player->attach (
1854	on_logout => sub {
1855	my ($pl) = @_;
1856
1857	# abort map switching before logout
1858	if ($pl->ob->{_link_pos}) {
1859	cf::sync_job {
1860	$pl->ob->leave_link
1861	};
1862	}
1863	},
1864	on_login => sub {
1865	my ($pl) = @_;
1866
1867	# try to abort aborted map switching on player login :)
1868	# should happen only on crashes
1869	if ($pl->ob->{_link_pos}) {
1870	$pl->ob->enter_link;
1871	(async {
1872	$pl->ob->reply (undef,
1873	"There was an internal problem at your last logout, "
1874	. "the server will try to bring you to your intended destination in a second.",
1875	cf::NDI_RED);
1876	# we need this sleep as the login has a concurrent enter_exit running
1877	# and this sleep increases chances of the player not ending up in scorn
1878	Coro::Timer::sleep 1;
1879	$pl->ob->leave_link;
1880	})->prio (2);
1881	}
1882	},
1883	);
1884
1885	=item $player_object->goto ($path, $x, $y)	2225	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1886		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
1887	=cut	2232	=cut
		2233
		2234	our $GOTOGEN;
1888		2235
1889	sub cf::object::player::goto {	2236	sub cf::object::player::goto {
1890	my ($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;
1891		2241
1892	$self->enter_link;	2242	$self->enter_link;
1893		2243
1894	(async {	2244	(async {
1895	my $map = eval {	2245	my $map = eval {
1896	my $map = cf::map::find $path;	2246	my $map = cf::map::find $path;
		2247
		2248	if ($map) {
1897	$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
1898	$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 $@;
1899	} or	2261	}
1900	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1901		2262
		2263	if ($gen == $self->{_goto_generation}) {
		2264	delete $self->{_goto_generation};
1902	$self->leave_link ($map, $x, $y);	2265	$self->leave_link ($map, $x, $y);
		2266	}
1903	})->prio (1);	2267	})->prio (1);
1904	}	2268	}
1905		2269
1906	=item $player_object->enter_exit ($exit_object)	2270	=item $player_object->enter_exit ($exit_object)
1907		2271
…		…
1946		2310
1947	$rmp->{random_seed} ||= $exit->random_seed;	2311	$rmp->{random_seed} ||= $exit->random_seed;
1948		2312
1949	my $data = cf::to_json $rmp;	2313	my $data = cf::to_json $rmp;
1950	my $md5 = Digest::MD5::md5_hex $data;	2314	my $md5 = Digest::MD5::md5_hex $data;
1951	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2315	my $meta = "$RANDOMDIR/$md5.meta";
1952		2316
1953	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2317	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1954	aio_write $fh, 0, (length $data), $data, 0;	2318	aio_write $fh, 0, (length $data), $data, 0;
1955	undef $fh;	2319	undef $fh;
1956	aio_rename "$meta~", $meta;	2320	aio_rename "$meta~", $meta;
…		…
1965		2329
1966	return unless $self->type == cf::PLAYER;	2330	return unless $self->type == cf::PLAYER;
1967		2331
1968	if ($exit->slaying eq "/!") {	2332	if ($exit->slaying eq "/!") {
1969	#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
1970	cf::sync_job { prepare_random_map $exit };	2336	cf::sync_job { prepare_random_map $exit };
1971	}	2337	}
1972		2338
1973	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;
1974	my $hp = $exit->stats->hp;	2340	my $hp = $exit->stats->hp;
…		…
1982	$self->goto ($slaying, $hp, $sp);	2348	$self->goto ($slaying, $hp, $sp);
1983		2349
1984	1;	2350	1;
1985	}) {	2351	}) {
1986	$self->message ("Something went wrong deep within the crossfire server. "	2352	$self->message ("Something went wrong deep within the crossfire server. "
1987	. "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. "
1988	. "Please report this to the dungeon master!",	2354	. "Please report this to the dungeon master!",
1989	cf::NDI_UNIQUE | cf::NDI_RED);	2355	cf::NDI_UNIQUE | cf::NDI_RED);
1990		2356
1991	warn "ERROR in enter_exit: $@";	2357	warn "ERROR in enter_exit: $@";
1992	$self->leave_link;	2358	$self->leave_link;
1993	}	2359	}
1994	})->prio (1);	2360	})->prio (1);
…		…
2010		2376
2011	utf8::encode $text;	2377	utf8::encode $text;
2012	$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);
2013	}	2379	}
2014		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
2015	=item $client->ext_event ($type, %msg)	2419	=item $client->ext_event ($type, %msg)
2016		2420
2017	Sends an exti event to the client.	2421	Sends an ext event to the client.
2018		2422
2019	=cut	2423	=cut
2020		2424
2021	sub cf::client::ext_event($$%) {	2425	sub cf::client::ext_event($$%) {
2022	my ($self, $type, %msg) = @_;	2426	my ($self, $type, %msg) = @_;
…		…
2029		2433
2030	Queues a query to the client, calling the given callback with	2434	Queues a query to the client, calling the given callback with
2031	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2435	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2032	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2436	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2033		2437
2034	Queries can fail, so check the return code. Or don't, as queries will become	2438	Queries can fail, so check the return code. Or don't, as queries will
2035	reliable at some point in the future.	2439	become reliable at some point in the future.
2036		2440
2037	=cut	2441	=cut
2038		2442
2039	sub cf::client::query {	2443	sub cf::client::query {
2040	my ($self, $flags, $text, $cb) = @_;	2444	my ($self, $flags, $text, $cb) = @_;
…		…
2048	utf8::encode $text;	2452	utf8::encode $text;
2049	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2453	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2050		2454
2051	$self->send_packet ($self->{query_queue}[0][0])	2455	$self->send_packet ($self->{query_queue}[0][0])
2052	if @{ $self->{query_queue} } == 1;	2456	if @{ $self->{query_queue} } == 1;
		2457
		2458	1
2053	}	2459	}
2054		2460
2055	cf::client->attach (	2461	cf::client->attach (
2056	on_reply => sub {	2462	on_reply => sub {
2057	my ($ns, $msg) = @_;	2463	my ($ns, $msg) = @_;
…		…
2071	$ns->send_packet ($ns->{query_queue}[0][0]);	2477	$ns->send_packet ($ns->{query_queue}[0][0]);
2072	} else {	2478	} else {
2073	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2479	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2074	}	2480	}
2075	}	2481	}
		2482	},
		2483	on_exticmd => sub {
		2484	my ($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;
2076	},	2500	},
2077	);	2501	);
2078		2502
2079	=item $client->async (\&cb)	2503	=item $client->async (\&cb)
2080		2504
…		…
2219	=back	2643	=back
2220		2644
2221	=cut	2645	=cut
2222		2646
2223	#############################################################################	2647	#############################################################################
2224
2225	=head2 EXTENSION DATABASE SUPPORT
2226
2227	Crossfire maintains a very simple database for extension use. It can
2228	currently store anything that can be serialised using Storable, which
2229	excludes objects.
2230
2231	The parameter C<$family> should best start with the name of the extension
2232	using it, it should be unique.
2233
2234	=over 4
2235
2236	=item $value = cf::db_get $family => $key
2237
2238	Returns a single value from the database.
2239
2240	=item cf::db_put $family => $key => $value
2241
2242	Stores the given C<$value> in the family.
2243
2244	=cut
2245
2246	our $DB;
2247
2248	sub db_init {
2249	unless ($DB) {
2250	$DB = BDB::db_create $DB_ENV;
2251
2252	cf::sync_job {
2253	eval {
2254	$DB->set_flags (BDB::CHKSUM);
2255
2256	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2257	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2258	cf::cleanup "db_open(db): $!" if $!;
2259	};
2260	cf::cleanup "db_open(db): $@" if $@;
2261	};
2262
2263	my $path = cf::localdir . "/database.pst";
2264	if (stat $path) {
2265	cf::sync_job {
2266	my $pst = Storable::retrieve $path;
2267
2268	cf::db_put (board => data => $pst->{board});
2269	cf::db_put (guildrules => data => $pst->{guildrules});
2270	cf::db_put (rent => balance => $pst->{rent}{balance});
2271	BDB::db_env_txn_checkpoint $DB_ENV;
2272
2273	unlink $path;
2274	};
2275	}
2276	}
2277	}
2278
2279	sub db_get($$) {
2280	my $key = "$_[0]/$_[1]";
2281
2282	cf::sync_job {
2283	BDB::db_get $DB, undef, $key, my $data;
2284
2285	$! ? ()
2286	: Compress::LZF::sthaw $data
2287	}
2288	}
2289
2290	sub db_put($$$) {
2291	BDB::dbreq_pri 4;
2292	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2293	}
2294
2295	#############################################################################
2296	# the server's init and main functions	2648	# the server's init and main functions
2297		2649
2298	sub load_facedata {	2650	sub load_facedata($) {
2299	my $path = sprintf "%s/facedata", cf::datadir;	2651	my ($path) = @_;
2300		2652
2301	warn "loading facedata from $path\n";	2653	warn "loading facedata from $path\n";
2302		2654
2303	my $faces;	2655	my $facedata;
2304	0 < aio_load $path, $faces	2656	0 < aio_load $path, $facedata
2305	or die "$path: $!";	2657	or die "$path: $!";
2306		2658
2307	Coro::cede;
2308	$faces = Storable::thaw $faces;	2659	$facedata = Coro::Storable::thaw $facedata;
2309	Coro::cede;
2310		2660
2311	my $meta = delete $faces->{""};
2312	$meta->{version} == 1	2661	$facedata->{version} == 2
2313	or cf::cleanup "$path: version mismatch, cannot proceed.";	2662	or cf::cleanup "$path: version mismatch, cannot proceed.";
2314		2663
		2664	{
		2665	my $faces = $facedata->{faceinfo};
		2666
2315	while (my ($face, $info) = each %$faces) {	2667	while (my ($face, $info) = each %$faces) {
2316	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2668	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2317	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2669	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2318	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2670	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2319	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2671	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2320	Coro::cede;	2672	Coro::cede;
2321	}	2673	}
2322		2674
2323	while (my ($face, $info) = each %$faces) {	2675	while (my ($face, $info) = each %$faces) {
2324	next unless $info->{smooth};	2676	next unless $info->{smooth};
2325	my $idx = cf::face::find $face	2677	my $idx = cf::face::find $face
2326	or next;	2678	or next;
2327	if (my $smooth = cf::face::find $info->{smooth}) {	2679	if (my $smooth = cf::face::find $info->{smooth}) {
2328	cf::face::set_smooth $idx, $smooth;	2680	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
2329	} else {	2681	} else {
2330	warn "smooth face '$info->{smooth}' not found for face '$face'";	2682	warn "smooth face '$info->{smooth}' not found for face '$face'";
2331	}	2683	}
2332	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}, $info->{facings};
		2693	Coro::cede;
		2694	}
		2695
		2696	cf::anim::invalidate_all; # d'oh
2333	}	2697	}
2334		2698
2335	1	2699	1
2336	}	2700	}
2337		2701
		2702	sub reload_regions {
		2703	load_resource_file "$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	#d# NEED to laod twice to resolve forward references
		2716	# this really needs to be done in an extra post-pass
		2717	# (which needs to be synchronous, so solve it differently)
		2718	load_resource_file "$DATADIR/archetypes"
		2719	or die "unable to load archetypes\n";
		2720	}
		2721
		2722	sub reload_treasures {
		2723	load_resource_file "$DATADIR/treasures"
		2724	or die "unable to load treasurelists\n";
		2725	}
		2726
2338	sub reload_resources {	2727	sub reload_resources {
2339	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2728	warn "reloading resource files...\n";
2340	or die "unable to load regions file\n";#d#	2729
		2730	reload_regions;
2341	load_facedata	2731	reload_facedata;
2342	or die "unable to load facedata\n";#d#	2732	#reload_archetypes;#d#
		2733	reload_archetypes;
		2734	reload_treasures;
		2735
		2736	warn "finished reloading resource files\n";
2343	}	2737	}
2344		2738
2345	sub init {	2739	sub init {
2346	reload_resources;	2740	reload_resources;
2347	}	2741	}
2348		2742
2349	sub cfg_load {	2743	sub cfg_load {
2350	open my $fh, "<:utf8", cf::confdir . "/config"	2744	open my $fh, "<:utf8", "$CONFDIR/config"
2351	or return;	2745	or return;
2352		2746
2353	local $/;	2747	local $/;
2354	*CFG = YAML::Syck::Load <$fh>;	2748	*CFG = YAML::Syck::Load <$fh>;
2355		2749
…		…
2400	},	2794	},
2401	);	2795	);
2402	}	2796	}
2403	}	2797	}
2404		2798
		2799	sub write_runtime {
		2800	my $runtime = "$LOCALDIR/runtime";
		2801
		2802	# first touch the runtime file to show we are still running:
		2803	# the fsync below can take a very very long time.
		2804
		2805	IO::AIO::aio_utime $runtime, undef, undef;
		2806
		2807	my $guard = cf::lock_acquire "write_runtime";
		2808
		2809	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2810	or return;
		2811
		2812	my $value = $cf::RUNTIME + 90 + 10;
		2813	# 10 is the runtime save interval, for a monotonic clock
		2814	# 60 allows for the watchdog to kill the server.
		2815
		2816	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2817	and return;
		2818
		2819	# always fsync - this file is important
		2820	aio_fsync $fh
		2821	and return;
		2822
		2823	# touch it again to show we are up-to-date
		2824	aio_utime $fh, undef, undef;
		2825
		2826	close $fh
		2827	or return;
		2828
		2829	aio_rename "$runtime~", $runtime
		2830	and return;
		2831
		2832	warn "runtime file written.\n";
		2833
		2834	1
		2835	}
		2836
2405	sub emergency_save() {	2837	sub emergency_save() {
2406	my $freeze_guard = cf::freeze_mainloop;	2838	my $freeze_guard = cf::freeze_mainloop;
2407		2839
2408	warn "enter emergency perl save\n";	2840	warn "enter emergency perl save\n";
2409		2841
…		…
2440		2872
2441	warn Carp::longmess "post_cleanup backtrace"	2873	warn Carp::longmess "post_cleanup backtrace"
2442	if $make_core;	2874	if $make_core;
2443	}	2875	}
2444		2876
2445	sub reload() {	2877	sub do_reload_perl() {
2446	# can/must only be called in main	2878	# can/must only be called in main
2447	if ($Coro::current != $Coro::main) {	2879	if ($Coro::current != $Coro::main) {
2448	warn "can only reload from main coroutine";	2880	warn "can only reload from main coroutine";
2449	return;	2881	return;
2450	}	2882	}
…		…
2484	%EXT_CORO = ();	2916	%EXT_CORO = ();
2485		2917
2486	warn "removing commands";	2918	warn "removing commands";
2487	%COMMAND = ();	2919	%COMMAND = ();
2488		2920
2489	warn "removing ext commands";	2921	warn "removing ext/exti commands";
2490	%EXTCMD = ();	2922	%EXTCMD = ();
		2923	%EXTICMD = ();
2491		2924
2492	warn "unloading/nuking all extensions";	2925	warn "unloading/nuking all extensions";
2493	for my $pkg (@EXTS) {	2926	for my $pkg (@EXTS) {
2494	warn "... unloading $pkg";	2927	warn "... unloading $pkg";
2495		2928
…		…
2525	Symbol::delete_package "safe::$_"	2958	Symbol::delete_package "safe::$_"
2526	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2527		2960
2528	warn "unloading cf.pm \"a bit\"";	2961	warn "unloading cf.pm \"a bit\"";
2529	delete $INC{"cf.pm"};	2962	delete $INC{"cf.pm"};
		2963	delete $INC{"cf/pod.pm"};
2530		2964
2531	# don't, removes xs symbols, too,	2965	# don't, removes xs symbols, too,
2532	# and global variables created in xs	2966	# and global variables created in xs
2533	#Symbol::delete_package __PACKAGE__;	2967	#Symbol::delete_package __PACKAGE__;
2534		2968
…		…
2549	warn "reattaching attachments to maps";	2983	warn "reattaching attachments to maps";
2550	reattach $_ for values %MAP;	2984	reattach $_ for values %MAP;
2551	warn "reattaching attachments to players";	2985	warn "reattaching attachments to players";
2552	reattach $_ for values %PLAYER;	2986	reattach $_ for values %PLAYER;
2553		2987
2554	warn "loading reloadable resources";
2555	reload_resources;
2556
2557	warn "leaving sync_job";	2988	warn "leaving sync_job";
2558		2989
2559	1	2990	1
2560	} or do {	2991	} or do {
2561	warn $@;	2992	warn $@;
…		…
2566	warn "reloaded";	2997	warn "reloaded";
2567	};	2998	};
2568		2999
2569	our $RELOAD_WATCHER; # used only during reload	3000	our $RELOAD_WATCHER; # used only during reload
2570		3001
		3002	sub reload_perl() {
		3003	# doing reload synchronously and two reloads happen back-to-back,
		3004	# coro crashes during coro_state_free->destroy here.
		3005
		3006	$RELOAD_WATCHER ||= Event->timer (
		3007	reentrant => 0,
		3008	after => 0,
		3009	data => WF_AUTOCANCEL,
		3010	cb => sub {
		3011	do_reload_perl;
		3012	undef $RELOAD_WATCHER;
		3013	},
		3014	);
		3015	}
		3016
2571	register_command "reload" => sub {	3017	register_command "reload" => sub {
2572	my ($who, $arg) = @_;	3018	my ($who, $arg) = @_;
2573		3019
2574	if ($who->flag (FLAG_WIZ)) {	3020	if ($who->flag (FLAG_WIZ)) {
2575	$who->message ("reloading server.");	3021	$who->message ("reloading server.");
2576		3022	async { reload_perl };
2577	# doing reload synchronously and two reloads happen back-to-back,
2578	# coro crashes during coro_state_free->destroy here.
2579
2580	$RELOAD_WATCHER ||= Event->timer (
2581	reentrant => 0,
2582	after => 0,
2583	data => WF_AUTOCANCEL,
2584	cb => sub {
2585	reload;
2586	undef $RELOAD_WATCHER;
2587	},
2588	);
2589	}	3023	}
2590	};	3024	};
2591		3025
2592	unshift @INC, $LIBDIR;	3026	unshift @INC, $LIBDIR;
2593		3027
2594	my $bug_warning = 0;	3028	my $bug_warning = 0;
2595		3029
		3030	our @WAIT_FOR_TICK;
		3031	our @WAIT_FOR_TICK_BEGIN;
		3032
		3033	sub wait_for_tick {
		3034	return unless $TICK_WATCHER->is_active;
		3035	return if $Coro::current == $Coro::main;
		3036
		3037	my $signal = new Coro::Signal;
		3038	push @WAIT_FOR_TICK, $signal;
		3039	$signal->wait;
		3040	}
		3041
		3042	sub wait_for_tick_begin {
		3043	return unless $TICK_WATCHER->is_active;
		3044	return if $Coro::current == $Coro::main;
		3045
		3046	my $signal = new Coro::Signal;
		3047	push @WAIT_FOR_TICK_BEGIN, $signal;
		3048	$signal->wait;
		3049	}
		3050
		3051	my $min = 1e6;#d#
		3052	my $avg = 10;
2596	$TICK_WATCHER = Event->timer (	3053	$TICK_WATCHER = Event->timer (
2597	reentrant => 0,	3054	reentrant => 0,
2598	parked => 1,	3055	parked => 1,
2599	prio => 0,	3056	prio => 0,
2600	at => $NEXT_TICK || $TICK,	3057	at => $NEXT_TICK || $TICK,
…		…
2604	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3061	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2605	unless ++$bug_warning > 10;	3062	unless ++$bug_warning > 10;
2606	return;	3063	return;
2607	}	3064	}
2608		3065
2609	$NOW = Event::time;	3066	$NOW = $tick_start = Event::time;
2610		3067
2611	cf::server_tick; # one server iteration	3068	cf::server_tick; # one server iteration
		3069
		3070	0 && sync_job {#d#
		3071	for(1..10) {
		3072	my $t = Event::time;
		3073	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3074	or die;
		3075
		3076	$map->width (50);
		3077	$map->height (50);
		3078	$map->alloc;
		3079	$map->_load_objects ("/tmp/x.map", 1);
		3080	my $t = Event::time - $t;
		3081
		3082	#next unless $t < 0.0013;#d#
		3083	if ($t < $min) {
		3084	$min = $t;
		3085	}
		3086	$avg = $avg * 0.99 + $t * 0.01;
		3087	}
		3088	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3089	exit 0;
		3090	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3091	};
		3092
2612	$RUNTIME += $TICK;	3093	$RUNTIME += $TICK;
2613	$NEXT_TICK += $TICK;	3094	$NEXT_TICK += $TICK;
2614		3095
2615	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3096	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2616	$NEXT_RUNTIME_WRITE = $NOW + 10;	3097	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2618	write_runtime	3099	write_runtime
2619	or warn "ERROR: unable to write runtime file: $!";	3100	or warn "ERROR: unable to write runtime file: $!";
2620	};	3101	};
2621	}	3102	}
2622		3103
2623	$WAIT_FOR_TICK->broadcast;
2624	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2625
2626	# my $AFTER = Event::time;	3104	# my $AFTER = Event::time;
2627	# warn $AFTER - $NOW;#d#	3105	# warn $AFTER - $NOW;#d#
2628		3106
		3107	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3108	$sig->send;
		3109	}
		3110	while (my $sig = shift @WAIT_FOR_TICK) {
		3111	$sig->send;
		3112	}
		3113
		3114	$NOW = Event::time;
		3115
2629	# if we are delayed by four ticks or more, skip them all	3116	# if we are delayed by four ticks or more, skip them all
2630	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3117	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2631		3118
2632	$TICK_WATCHER->at ($NEXT_TICK);	3119	$TICK_WATCHER->at ($NEXT_TICK);
2633	$TICK_WATCHER->start;	3120	$TICK_WATCHER->start;
		3121
		3122	$LOAD = ($NOW - $tick_start) / $TICK;
		3123	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3124
		3125	_post_tick;
		3126
		3127
2634	},	3128	},
2635	);	3129	);
2636		3130
2637	{	3131	{
2638	BDB::max_poll_time $TICK * 0.1;	3132	BDB::max_poll_time $TICK * 0.1;
…		…
2666		3160
2667	cf::sync_job {	3161	cf::sync_job {
2668	eval {	3162	eval {
2669	BDB::db_env_open	3163	BDB::db_env_open
2670	$DB_ENV,	3164	$DB_ENV,
2671	$BDB_ENV_DIR,	3165	$BDBDIR,
2672	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3166	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2673	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3167	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2674	0666;	3168	0666;
2675		3169
2676	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3170	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2677		3171
2678	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3172	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2679	$DB_ENV->set_lk_detect;	3173	$DB_ENV->set_lk_detect;
2680	};	3174	};
2681		3175
…		…
2697	prio => 6,	3191	prio => 6,
2698	cb => \&IO::AIO::poll_cb,	3192	cb => \&IO::AIO::poll_cb,
2699	);	3193	);
2700	}	3194	}
2701		3195
		3196	my $_log_backtrace;
		3197
		3198	sub _log_backtrace {
		3199	my ($msg, @addr) = @_;
		3200
		3201	$msg =~ s/\n//;
		3202
		3203	# limit the # of concurrent backtraces
		3204	if ($_log_backtrace < 2) {
		3205	++$_log_backtrace;
		3206	async {
		3207	my @bt = fork_call {
		3208	@addr = map { sprintf "%x", $_ } @addr;
		3209	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3210	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3211	or die "addr2line: $!";
		3212
		3213	my @funcs;
		3214	my @res = <$fh>;
		3215	chomp for @res;
		3216	while (@res) {
		3217	my ($func, $line) = splice @res, 0, 2, ();
		3218	push @funcs, "[$func] $line";
		3219	}
		3220
		3221	@funcs
		3222	};
		3223
		3224	LOG llevInfo, "[ABT] $msg\n";
		3225	LOG llevInfo, "[ABT] $_\n" for @bt;
		3226	--$_log_backtrace;
		3227	};
		3228	} else {
		3229	LOG llevInfo, "[ABT] $msg\n";
		3230	LOG llevInfo, "[ABT] [suppressed]\n";
		3231	}
		3232	}
		3233
		3234	# load additional modules
		3235	use cf::pod;
		3236
2702	END { cf::emergency_save }	3237	END { cf::emergency_save }
2703		3238
2704	1	3239	1
2705		3240

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