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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.220 by root, Sat Feb 17 23:54:35 2007 UTC vs.
Revision 1.297 by root, Thu Jul 5 08:10:30 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.5 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
20	use BDB ();	26	use BDB ();
21	use Data::Dumper;	27	use Data::Dumper;
22	use Digest::MD5;	28	use Digest::MD5;
23	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
24	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
25	use YAML::Syck ();
26	use Time::HiRes;	32	use Time::HiRes;
27	use Compress::LZF;	33	use Compress::LZF;
28		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		40
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		42
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
37		45
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		47
		48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		49
40	our %COMMAND = ();	50	our %COMMAND = ();
41	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
42		52
43	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
47		58
		59	our $RELOAD; # number of reloads so far
48	our @EVENT;	60	our @EVENT;
49	our $LIBDIR = datadir . "/ext";
50		61
51	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
52	our $TICK_WATCHER;	75	our $TICK_WATCHER;
53	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	78	our $NEXT_TICK;
56	our $NOW;	79	our $NOW;
…		…
65	our $RUNTIME;	88	our $RUNTIME;
66		89
67	our %PLAYER; # all users	90	our %PLAYER; # all users
68	our %MAP; # all maps	91	our %MAP; # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	92	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		93
76	# used to convert map paths into valid unix filenames by replacing / by ∕	94	# used to convert map paths into valid unix filenames by replacing / by ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
		100
79	binmode STDOUT;	101	binmode STDOUT;
80	binmode STDERR;	102	binmode STDERR;
81		103
82	# read virtual server time, if available	104	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
84	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
85	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
86	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
87	}	109	}
88		110
89	mkdir cf::localdir;	111	mkdir $_
90	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
91	mkdir cf::localdir . "/" . cf::tmpdir;
92	mkdir cf::localdir . "/" . cf::uniquedir;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		113
96	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
97		115
98	sub cf::map::normalise;	116	sub cf::map::normalise;
99		117
…		…
110	=item $cf::RUNTIME	128	=item $cf::RUNTIME
111		129
112	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
113	every server tick.	131	every server tick.
114		132
115	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
116		136
117	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
118	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
119		141
120	=item $cf::NOW	142	=item $cf::NOW
121		143
122	The time of the last (current) server tick.	144	The time of the last (current) server tick.
123		145
124	=item $cf::TICK	146	=item $cf::TICK
125		147
126	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
127		159
128	=item %cf::CFG	160	=item %cf::CFG
129		161
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
131	from wherever your confdir points to.	163	from wherever your confdir points to.
132		164
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	165	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		166
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	168	returns directly I<after> the tick processing (and consequently, can only wake one process
137	processing has been done. Call C<< ->wait >> on them to maximise the	169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138	window of cpu time available, or simply to synchronise to the server tick.
139		170
140	=back	171	=back
141		172
142	=cut	173	=cut
143		174
144	BEGIN {	175	BEGIN {
145	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	177	my $msg = join "", @_;
147	utf8::encode $msg;
148		178
149	$msg .= "\n"	179	$msg .= "\n"
150	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
151		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
152	LOG llevError, $msg;	185	LOG llevError, $msg;
153	};	186	};
154	}	187	}
155		188
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
161	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
162		196
163	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
164	# within the Safe compartment.	198	# within the Safe compartment.
165	for my $pkg (qw(	199	for my $pkg (qw(
166	cf::global cf::attachable	200	cf::global cf::attachable
…		…
174	}	208	}
175		209
176	$Event::DIED = sub {	210	$Event::DIED = sub {
177	warn "error in event callback: @_";	211	warn "error in event callback: @_";
178	};	212	};
		213
		214	#############################################################################
179		215
180	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
181		217
182	=over 4	218	=over 4
183		219
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	239	$d
204	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
205	}	241	}
206		242
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
210		244
211	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
212		246
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
221		248
222	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
223		250
224	=cut	251	=cut
225		252
226	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
228	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
229	}	256	sub from_json ($) { $json_coder->decode ($_[0]) }
230		257
231	=item cf::lock_wait $string	258	=item cf::lock_wait $string
232		259
233	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
234		261
…		…
240	returned.	267	returned.
241		268
242	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
243	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
244		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
245	=cut	276	=cut
246		277
247	our %LOCK;	278	our %LOCK;
248		279
249	sub lock_wait($) {	280	sub lock_wait($) {
…		…
266		297
267	Coro::guard {	298	Coro::guard {
268	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
270	}	301	}
		302	}
		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
271	}	308	}
272		309
273	sub freeze_mainloop {	310	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
275		312
…		…
290		327
291	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
292		329
293	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
294		331
295	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
298		336
299	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
302	fast or be very important.	340	fast or be very important.
…		…
305		343
306	sub sync_job(&) {	344	sub sync_job(&) {
307	my ($job) = @_;	345	my ($job) = @_;
308		346
309	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
310	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
312		352
313	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
314	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
325		365
326	while ($busy) {	366	while ($busy) {
327	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
328	}	368	}
329		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
		376
330	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
331	} else {	378	} else {
332	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
333		380
334	$job->()	381	$job->()
…		…
353	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
354		401
355	$coro	402	$coro
356	}	403	}
357		404
358	sub write_runtime {	405	=item fork_call { }, $args
359	my $guard = cf::lock_acquire "write_runtime";
360		406
361	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.
362		411
363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	412	=cut
364	or return;
365		413
366	my $value = $cf::RUNTIME + 90 + 10;	414	sub fork_call(&@) {
367	# 10 is the runtime save interval, for a monotonic clock	415	my ($cb, @args) = @_;
368	# 60 allows for the watchdog to kill the server.
369		416
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
371	and return;	418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
372		421
373	# always fsync - this file is important	422	if (my $pid = fork) {
374	aio_fsync $fh
375	and return;
376
377	close $fh	423	close $fh2;
378	or return;
379		424
380	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
381	and return;	426	$res = Coro::Storable::thaw $res;
382		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
383	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
		563	}
		564
		565	=item cf::datalog type => key => value, ...
		566
		567	Log a datalog packet of the given type with the given key-value pairs.
		568
		569	=cut
		570
		571	sub datalog($@) {
		572	my ($type, %kv) = @_;
		573	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384	}	574	}
385		575
386	=back	576	=back
387		577
388	=cut	578	=cut
…		…
395	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")
396	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
397		587
398	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>
399	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
400	crossfire+).	590	Crossfire TRT).
401		591
402	=over 4	592	=over 4
403		593
404	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
405		595
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
569		759
570	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		764
575	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	766	my $pkg = shift @arg;
577		767
578	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
607	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
608	}	798	}
609		799
610	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
611	} else {	801	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
613	}	803	}
614		804
615	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
616	}	806	}
617		807
…		…
619	if (ref $_[0]) {	809	if (ref $_[0]) {
620	_object_attach @_;	810	_object_attach @_;
621	} else {	811	} else {
622	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
623	}	813	}
		814	_recalc_want;
624	};	815	};
625		816
626	# all those should be optimised	817	# all those should be optimised
627	sub cf::attachable::detach {	818	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
632	reattach ($obj);	823	reattach ($obj);
633	} else {	824	} else {
634	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
635	}	826	}
		827	_recalc_want;
636	};	828	};
637		829
638	sub cf::attachable::attached {	830	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
640		832
…		…
813	or return;	1005	or return;
814	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
815	}	1007	}
816		1008
817	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
819	return ($data, $av);	1011	return ($data, $av);
820	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
821		1019
822	#############################################################################	1020	#############################################################################
823	# command handling &c	1021	# command handling &c
824		1022
825	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1037	}
840		1038
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1040
843	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.
844		1046
845	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
846	called.	1048	called.
847		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
848	=cut	1061	=cut
849		1062
850	sub register_extcmd {	1063	sub register_extcmd {
851	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
852		1065
853	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
854	}	1073	}
855		1074
856	cf::player->attach (	1075	cf::player->attach (
857	on_command => sub {	1076	on_command => sub {
858	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
867	cf::override;	1086	cf::override;
868	},	1087	},
869	on_extcmd => sub {	1088	on_extcmd => sub {
870	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
871		1090
872	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
873		1092
874	if (ref $msg) {	1093	if (ref $msg) {
875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
876	if (my %reply = $cb->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
877	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
883		1102
884	cf::override;	1103	cf::override;
885	},	1104	},
886	);	1105	);
887		1106
888	sub load_extension {
889	my ($path) = @_;
890
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
892	my $base = $1;
893	my $pkg = $1;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}
916	die $@;
917	}
918
919	push @EXTS, $pkg;
920	}
921
922	sub load_extensions {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
923	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1112	next unless -r $path;
925	eval {	1113
926	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;
927	1	1171	}
928	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
929	}	1177	};
930	}	1178	}
931		1179
932	#############################################################################	1180	#############################################################################
933		1181
		1182	=back
		1183
934	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
935		1185
936	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
937		1187
938	=cut	1188	=cut
…		…
950	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
951		1201
952	=cut	1202	=cut
953		1203
954	sub playerdir($) {	1204	sub playerdir($) {
955	cf::localdir	1205	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1207	}
961		1208
962	sub path($) {	1209	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1211
965	(playerdir $login) . "/$login.pl"	1212	(playerdir $login) . "/playerdata"
966	}	1213	}
967		1214
968	sub find_active($) {	1215	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1216	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1217	and $cf::PLAYER{$_[0]}->active
…		…
983	my $login = $_[0];	1230	my $login = $_[0];
984		1231
985	my $guard = cf::lock_acquire "user_find:$login";	1232	my $guard = cf::lock_acquire "user_find:$login";
986		1233
987	$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
988	my $pl = load_pl path $login	1242	my $pl = load_pl path $login
989	or return;	1243	or return;
990	$cf::PLAYER{$login} = $pl	1244	$cf::PLAYER{$login} = $pl
991	}	1245	}
992	}	1246	}
…		…
1054	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;	1308	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1055		1309
1056	IO::AIO::aio_rmtree $temp;	1310	IO::AIO::aio_rmtree $temp;
1057	}	1311	}
1058		1312
		1313	=item $pl->kick
		1314
		1315	Kicks a player out of the game. This destroys the connection.
		1316
		1317	=cut
		1318
		1319	sub kick {
		1320	my ($pl, $kicker) = @_;
		1321
		1322	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1323	$pl->killer ("kicked");
		1324	$pl->ns->destroy;
		1325	}
		1326
1059	=item cf::player::list_logins	1327	=item cf::player::list_logins
1060		1328
1061	Returns am arrayref of all valid playernames in the system, can take a	1329	Returns am arrayref of all valid playernames in the system, can take a
1062	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1063		1331
1064	=cut	1332	=cut
1065		1333
1066	sub list_logins {	1334	sub list_logins {
1067	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1068	or return [];	1336	or return [];
1069		1337
1070	my @logins;	1338	my @logins;
1071		1339
1072	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1107	}	1375	}
1108		1376
1109	\@paths	1377	\@paths
1110	}	1378	}
1111		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	s/\s+\n/\n/g; # ws line-ends
		1418	s/\n\n+/\n/g; # double lines
		1419	s/^\n+//; # beginning lines
		1420	s/\n+$//; # ending lines
		1421
		1422	$_
		1423	}
		1424
		1425	sub hintmode {
		1426	$_[0]{hintmode} = $_[1] if @_ > 1;
		1427	$_[0]{hintmode}
		1428	}
		1429
1112	=item $player->ext_reply ($msgid, $msgtype, %msg)	1430	=item $player->ext_reply ($msgid, %msg)
1113		1431
1114	Sends an ext reply to the player.	1432	Sends an ext reply to the player.
1115		1433
1116	=cut	1434	=cut
1117		1435
1118	sub ext_reply($$$%) {	1436	sub ext_reply($$%) {
1119	my ($self, $id, %msg) = @_;	1437	my ($self, $id, %msg) = @_;
1120		1438
1121	$msg{msgid} = $id;	1439	$msg{msgid} = $id;
1122		1440	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1123	$self->send ("ext " . cf::to_json \%msg);
1124	}	1441	}
1125		1442
1126	package cf;	1443	=item $player->ext_event ($type, %msg)
		1444
		1445	Sends an ext event to the client.
		1446
		1447	=cut
		1448
		1449	sub ext_event($$%) {
		1450	my ($self, $type, %msg) = @_;
		1451
		1452	$self->ns->ext_event ($type, %msg);
		1453	}
		1454
		1455	=head3 cf::region
		1456
		1457	=over 4
		1458
		1459	=cut
		1460
		1461	package cf::region;
		1462
		1463	=item cf::region::find_by_path $path
		1464
		1465	Tries to decuce the likely region for a map knowing only its path.
		1466
		1467	=cut
		1468
		1469	sub find_by_path($) {
		1470	my ($path) = @_;
		1471
		1472	my ($match, $specificity);
		1473
		1474	for my $region (list) {
		1475	if ($region->match && $path =~ $region->match) {
		1476	($match, $specificity) = ($region, $region->specificity)
		1477	if $region->specificity > $specificity;
		1478	}
		1479	}
		1480
		1481	$match
		1482	}
1127		1483
1128	=back	1484	=back
1129
1130		1485
1131	=head3 cf::map	1486	=head3 cf::map
1132		1487
1133	=over 4	1488	=over 4
1134		1489
…		…
1189	my ($self, $merge) = @_;	1544	my ($self, $merge) = @_;
1190		1545
1191	# we have to keep some variables in memory intact	1546	# we have to keep some variables in memory intact
1192	local $self->{path};	1547	local $self->{path};
1193	local $self->{load_path};	1548	local $self->{load_path};
1194	local $self->{deny_save};
1195	local $self->{deny_reset};
1196		1549
1197	$self->SUPER::thawer_merge ($merge);	1550	$self->SUPER::thawer_merge ($merge);
1198	}	1551	}
1199		1552
1200	sub normalise {	1553	sub normalise {
…		…
1272		1625
1273	# the original (read-only) location	1626	# the original (read-only) location
1274	sub load_path {	1627	sub load_path {
1275	my ($self) = @_;	1628	my ($self) = @_;
1276		1629
1277	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1630	"$MAPDIR/$self->{path}.map"
1278	}	1631	}
1279		1632
1280	# the temporary/swap location	1633	# the temporary/swap location
1281	sub save_path {	1634	sub save_path {
1282	my ($self) = @_;	1635	my ($self) = @_;
1283		1636
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1637	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1285	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1638	"$TMPDIR/$path.map"
1286	}	1639	}
1287		1640
1288	# the unique path, undef == no special unique path	1641	# the unique path, undef == no special unique path
1289	sub uniq_path {	1642	sub uniq_path {
1290	my ($self) = @_;	1643	my ($self) = @_;
1291		1644
1292	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1645	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1293	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1646	"$UNIQUEDIR/$path"
1294	}	1647	}
1295		1648
1296	# and all this just because we cannot iterate over	1649	# and all this just because we cannot iterate over
1297	# all maps in C++...	1650	# all maps in C++...
1298	sub change_all_map_light {	1651	sub change_all_map_light {
1299	my ($change) = @_;	1652	my ($change) = @_;
1300		1653
1301	$_->change_map_light ($change)	1654	$_->change_map_light ($change)
1302	for grep $_->outdoor, values %cf::MAP;	1655	for grep $_->outdoor, values %cf::MAP;
		1656	}
		1657
		1658	sub decay_objects {
		1659	my ($self) = @_;
		1660
		1661	return if $self->{deny_reset};
		1662
		1663	$self->do_decay_objects;
1303	}	1664	}
1304		1665
1305	sub unlink_save {	1666	sub unlink_save {
1306	my ($self) = @_;	1667	my ($self) = @_;
1307		1668
…		…
1365	$self->load_header_orig	1726	$self->load_header_orig
1366	or return;	1727	or return;
1367	$self->prepare_orig;	1728	$self->prepare_orig;
1368	}	1729	}
1369		1730
		1731	$self->{deny_reset} = 1
		1732	if $self->no_reset;
		1733
		1734	$self->default_region (cf::region::find_by_path $self->{path})
		1735	unless $self->default_region;
		1736
1370	1	1737	1
1371	}	1738	}
1372		1739
1373	sub find;	1740	sub find;
1374	sub find {	1741	sub find {
…		…
1386	$map->{last_save} = $cf::RUNTIME;	1753	$map->{last_save} = $cf::RUNTIME;
1387		1754
1388	$map->load_header	1755	$map->load_header
1389	or return;	1756	or return;
1390		1757
1391	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1758	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1392	# doing this can freeze the server in a sync job, obviously	1759	# doing this can freeze the server in a sync job, obviously
1393	#$cf::WAIT_FOR_TICK->wait;	1760	#$cf::WAIT_FOR_TICK->wait;
1394	$map->reset;	1761	$map->reset;
1395	undef $guard;	1762	undef $guard;
1396	return find $path;	1763	return find $path;
…		…
1407	my ($self) = @_;	1774	my ($self) = @_;
1408		1775
1409	local $self->{deny_reset} = 1; # loading can take a long time	1776	local $self->{deny_reset} = 1; # loading can take a long time
1410		1777
1411	my $path = $self->{path};	1778	my $path = $self->{path};
		1779
		1780	{
1412	my $guard = cf::lock_acquire "map_load:$path";	1781	my $guard = cf::lock_acquire "map_load:$path";
1413		1782
1414	return if $self->in_memory != cf::MAP_SWAPPED;	1783	return if $self->in_memory != cf::MAP_SWAPPED;
1415		1784
1416	$self->in_memory (cf::MAP_LOADING);	1785	$self->in_memory (cf::MAP_LOADING);
1417		1786
1418	$self->alloc;	1787	$self->alloc;
1419		1788
1420	$self->pre_load;	1789	$self->pre_load;
1421
1422	$self->_load_objects ($self->{load_path}, 1)
1423	or return;
1424
1425	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1426	if delete $self->{load_original};
1427
1428	if (my $uniq = $self->uniq_path) {
1429	utf8::encode $uniq;
1430	if (aio_open $uniq, O_RDONLY, 0) {
1431	$self->clear_unique_items;
1432	$self->_load_objects ($uniq, 0);
1433	}
1434	}
1435
1436	Coro::cede;
1437
1438	# now do the right thing for maps
1439	$self->link_multipart_objects;
1440
1441	unless ($self->{deny_activate}) {
1442	$self->decay_objects;
1443	$self->fix_auto_apply;
1444	$self->update_buttons;
1445	Coro::cede;	1790	Coro::cede;
1446	$self->set_darkness_map;	1791
		1792	$self->_load_objects ($self->{load_path}, 1)
		1793	or return;
		1794
		1795	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1796	if delete $self->{load_original};
		1797
		1798	if (my $uniq = $self->uniq_path) {
		1799	utf8::encode $uniq;
		1800	if (aio_open $uniq, O_RDONLY, 0) {
		1801	$self->clear_unique_items;
		1802	$self->_load_objects ($uniq, 0);
		1803	}
		1804	}
		1805
		1806	Coro::cede;
		1807	# now do the right thing for maps
		1808	$self->link_multipart_objects;
1447	$self->difficulty ($self->estimate_difficulty)	1809	$self->difficulty ($self->estimate_difficulty)
1448	unless $self->difficulty;	1810	unless $self->difficulty;
1449	Coro::cede;	1811	Coro::cede;
		1812
		1813	unless ($self->{deny_activate}) {
		1814	$self->decay_objects;
		1815	$self->fix_auto_apply;
		1816	$self->update_buttons;
		1817	Coro::cede;
		1818	$self->set_darkness_map;
		1819	Coro::cede;
1450	$self->activate;	1820	$self->activate;
		1821	}
		1822
		1823	$self->in_memory (cf::MAP_IN_MEMORY);
1451	}	1824	}
1452		1825
1453	$self->post_load;	1826	$self->post_load;
1454
1455	$self->in_memory (cf::MAP_IN_MEMORY);
1456	}	1827	}
1457		1828
1458	sub customise_for {	1829	sub customise_for {
1459	my ($self, $ob) = @_;	1830	my ($self, $ob) = @_;
1460		1831
1461	return find "~" . $ob->name . "/" . $self->{path}	1832	return find "~" . $ob->name . "/" . $self->{path}
1462	if $self->per_player;	1833	if $self->per_player;
		1834
		1835	# return find "?party/" . $ob->name . "/" . $self->{path}
		1836	# if $self->per_party;
1463		1837
1464	$self	1838	$self
1465	}	1839	}
1466		1840
1467	# find and load all maps in the 3x3 area around a map	1841	# find and load all maps in the 3x3 area around a map
…		…
1578		1952
1579	sub reset_at {	1953	sub reset_at {
1580	my ($self) = @_;	1954	my ($self) = @_;
1581		1955
1582	# TODO: safety, remove and allow resettable per-player maps	1956	# TODO: safety, remove and allow resettable per-player maps
1583	return 1e99 if $self->isa ("ext::map_per_player");#d#
1584	return 1e99 if $self->{deny_reset};	1957	return 1e99 if $self->{deny_reset};
1585		1958
1586	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1959	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1587	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1960	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1588		1961
…		…
1599	my ($self) = @_;	1972	my ($self) = @_;
1600		1973
1601	my $lock = cf::lock_acquire "map_data:$self->{path}";	1974	my $lock = cf::lock_acquire "map_data:$self->{path}";
1602		1975
1603	return if $self->players;	1976	return if $self->players;
1604	return if $self->isa ("ext::map_per_player");#d#
1605		1977
1606	warn "resetting map ", $self->path;#d#	1978	warn "resetting map ", $self->path;
1607		1979
1608	$self->in_memory (cf::MAP_SWAPPED);	1980	$self->in_memory (cf::MAP_SWAPPED);
1609		1981
1610	# need to save uniques path	1982	# need to save uniques path
1611	unless ($self->{deny_save}) {	1983	unless ($self->{deny_save}) {
…		…
1643	$cf::MAP{$self->path} = $self;	2015	$cf::MAP{$self->path} = $self;
1644		2016
1645	$self->reset; # polite request, might not happen	2017	$self->reset; # polite request, might not happen
1646	}	2018	}
1647		2019
		2020	=item $maps = cf::map::tmp_maps
		2021
		2022	Returns an arrayref with all map paths of currently instantiated and saved
		2023	maps. May block.
		2024
		2025	=cut
		2026
		2027	sub tmp_maps() {
		2028	[
		2029	map {
		2030	utf8::decode $_;
		2031	/\.map$/
		2032	? normalise $_
		2033	: ()
		2034	} @{ aio_readdir $TMPDIR or [] }
		2035	]
		2036	}
		2037
		2038	=item $maps = cf::map::random_maps
		2039
		2040	Returns an arrayref with all map paths of currently instantiated and saved
		2041	random maps. May block.
		2042
		2043	=cut
		2044
		2045	sub random_maps() {
		2046	[
		2047	map {
		2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise "?random/$_"
		2051	: ()
		2052	} @{ aio_readdir $RANDOMDIR or [] }
		2053	]
		2054	}
		2055
1648	=item cf::map::unique_maps	2056	=item cf::map::unique_maps
1649		2057
1650	Returns an arrayref of paths of all shared maps that have	2058	Returns an arrayref of paths of all shared maps that have
1651	instantiated unique items. May block.	2059	instantiated unique items. May block.
1652		2060
1653	=cut	2061	=cut
1654		2062
1655	sub unique_maps() {	2063	sub unique_maps() {
1656	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2064	[
1657	or return;	2065	map {
1658
1659	my @paths;
1660
1661	for (@$files) {
1662	utf8::decode $_;	2066	utf8::decode $_;
1663	next if /\.pst$/;	2067	/\.map$/
1664	next unless /^$PATH_SEP/o;	2068	? normalise $_
1665		2069	: ()
1666	push @paths, cf::map::normalise $_;	2070	} @{ aio_readdir $UNIQUEDIR or [] }
1667	}	2071	]
1668
1669	\@paths
1670	}	2072	}
1671		2073
1672	package cf;	2074	package cf;
1673		2075
1674	=back	2076	=back
…		…
1720		2122
1721	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2123	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1722		2124
1723	if ($self->{record_replies}) {	2125	if ($self->{record_replies}) {
1724	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2126	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2127
1725	} else {	2128	} else {
		2129	my $pl = $self->contr;
		2130
		2131	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2132	my $diag = $pl->{npc_dialog};
		2133	$diag->{pl}->ext_reply (
		2134	$diag->{id},
		2135	msgtype => "reply",
		2136	msg => $diag->{pl}->expand_cfpod ($msg),
		2137	add_topics => []
		2138	);
		2139
		2140	} else {
1726	$msg = $npc->name . " says: $msg" if $npc;	2141	$msg = $npc->name . " says: $msg" if $npc;
1727	$self->message ($msg, $flags);	2142	$self->message ($msg, $flags);
		2143	}
1728	}	2144	}
1729	}	2145	}
1730		2146
1731	=item $player_object->may ("access")	2147	=item $player_object->may ("access")
1732		2148
…		…
1780	$self->deactivate_recursive;	2196	$self->deactivate_recursive;
1781		2197
1782	return if UNIVERSAL::isa $self->map, "ext::map_link";	2198	return if UNIVERSAL::isa $self->map, "ext::map_link";
1783		2199
1784	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2200	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1785	if $self->map;	2201	if $self->map && $self->map->{path} ne "{link}";
1786		2202
1787	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2203	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1788	}	2204	}
1789		2205
1790	sub cf::object::player::leave_link {	2206	sub cf::object::player::leave_link {
1791	my ($self, $map, $x, $y) = @_;	2207	my ($self, $map, $x, $y) = @_;
		2208
		2209	return unless $self->contr->active;
1792		2210
1793	my $link_pos = delete $self->{_link_pos};	2211	my $link_pos = delete $self->{_link_pos};
1794		2212
1795	unless ($map) {	2213	unless ($map) {
1796	# restore original map position	2214	# restore original map position
…		…
1819		2237
1820	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2238	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1821	$self->enter_map ($map, $x, $y);	2239	$self->enter_map ($map, $x, $y);
1822	}	2240	}
1823		2241
1824	cf::player->attach (
1825	on_logout => sub {
1826	my ($pl) = @_;
1827
1828	# abort map switching before logout
1829	if ($pl->ob->{_link_pos}) {
1830	cf::sync_job {
1831	$pl->ob->leave_link
1832	};
1833	}
1834	},
1835	on_login => sub {
1836	my ($pl) = @_;
1837
1838	# try to abort aborted map switching on player login :)
1839	# should happen only on crashes
1840	if ($pl->ob->{_link_pos}) {
1841	$pl->ob->enter_link;
1842	(async {
1843	$pl->ob->reply (undef,
1844	"There was an internal problem at your last logout, "
1845	. "the server will try to bring you to your intended destination in a second.",
1846	cf::NDI_RED);
1847	# we need this sleep as the login has a concurrent enter_exit running
1848	# and this sleep increases chances of the player not ending up in scorn
1849	Coro::Timer::sleep 1;
1850	$pl->ob->leave_link;
1851	})->prio (2);
1852	}
1853	},
1854	);
1855
1856	=item $player_object->goto ($path, $x, $y)	2242	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1857		2243
		2244	Moves the player to the given map-path and coordinates by first freezing
		2245	her, loading and preparing them map, calling the provided $check callback
		2246	that has to return the map if sucecssful, and then unfreezes the player on
		2247	the new (success) or old (failed) map position.
		2248
1858	=cut	2249	=cut
		2250
		2251	our $GOTOGEN;
1859		2252
1860	sub cf::object::player::goto {	2253	sub cf::object::player::goto {
1861	my ($self, $path, $x, $y) = @_;	2254	my ($self, $path, $x, $y, $check) = @_;
		2255
		2256	# do generation counting so two concurrent goto's will be executed in-order
		2257	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1862		2258
1863	$self->enter_link;	2259	$self->enter_link;
1864		2260
1865	(async {	2261	(async {
1866	my $map = eval {	2262	my $map = eval {
1867	my $map = cf::map::find $path;	2263	my $map = cf::map::find $path;
		2264
		2265	if ($map) {
1868	$map = $map->customise_for ($self) if $map;	2266	$map = $map->customise_for ($self);
		2267	$map = $check->($map) if $check && $map;
		2268	} else {
		2269	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2270	}
		2271
1869	$map	2272	$map
		2273	};
		2274
		2275	if ($@) {
		2276	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2277	LOG llevError | logBacktrace, Carp::longmess $@;
1870	} or	2278	}
1871	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1872		2279
		2280	if ($gen == $self->{_goto_generation}) {
		2281	delete $self->{_goto_generation};
1873	$self->leave_link ($map, $x, $y);	2282	$self->leave_link ($map, $x, $y);
		2283	}
1874	})->prio (1);	2284	})->prio (1);
1875	}	2285	}
1876		2286
1877	=item $player_object->enter_exit ($exit_object)	2287	=item $player_object->enter_exit ($exit_object)
1878		2288
…		…
1917		2327
1918	$rmp->{random_seed} ||= $exit->random_seed;	2328	$rmp->{random_seed} ||= $exit->random_seed;
1919		2329
1920	my $data = cf::to_json $rmp;	2330	my $data = cf::to_json $rmp;
1921	my $md5 = Digest::MD5::md5_hex $data;	2331	my $md5 = Digest::MD5::md5_hex $data;
1922	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2332	my $meta = "$RANDOMDIR/$md5.meta";
1923		2333
1924	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2334	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1925	aio_write $fh, 0, (length $data), $data, 0;	2335	aio_write $fh, 0, (length $data), $data, 0;
1926	undef $fh;	2336	undef $fh;
1927	aio_rename "$meta~", $meta;	2337	aio_rename "$meta~", $meta;
…		…
1936		2346
1937	return unless $self->type == cf::PLAYER;	2347	return unless $self->type == cf::PLAYER;
1938		2348
1939	if ($exit->slaying eq "/!") {	2349	if ($exit->slaying eq "/!") {
1940	#TODO: this should de-fi-ni-te-ly not be a sync-job	2350	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2351	# the problem is that $exit might not survive long enough
		2352	# so it needs to be done right now, right here
1941	cf::sync_job { prepare_random_map $exit };	2353	cf::sync_job { prepare_random_map $exit };
1942	}	2354	}
1943		2355
1944	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2356	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1945	my $hp = $exit->stats->hp;	2357	my $hp = $exit->stats->hp;
1946	my $sp = $exit->stats->sp;	2358	my $sp = $exit->stats->sp;
1947		2359
1948	$self->enter_link;	2360	$self->enter_link;
		2361
		2362	# if exit is damned, update players death & WoR home-position
		2363	$self->contr->savebed ($slaying, $hp, $sp)
		2364	if $exit->flag (FLAG_DAMNED);
1949		2365
1950	(async {	2366	(async {
1951	$self->deactivate_recursive; # just to be sure	2367	$self->deactivate_recursive; # just to be sure
1952	unless (eval {	2368	unless (eval {
1953	$self->goto ($slaying, $hp, $sp);	2369	$self->goto ($slaying, $hp, $sp);
1954		2370
1955	1;	2371	1;
1956	}) {	2372	}) {
1957	$self->message ("Something went wrong deep within the crossfire server. "	2373	$self->message ("Something went wrong deep within the crossfire server. "
1958	. "I'll try to bring you back to the map you were before. "	2374	. "I'll try to bring you back to the map you were before. "
1959	. "Please report this to the dungeon master!",	2375	. "Please report this to the dungeon master!",
1960	cf::NDI_UNIQUE | cf::NDI_RED);	2376	cf::NDI_UNIQUE | cf::NDI_RED);
1961		2377
1962	warn "ERROR in enter_exit: $@";	2378	warn "ERROR in enter_exit: $@";
1963	$self->leave_link;	2379	$self->leave_link;
1964	}	2380	}
1965	})->prio (1);	2381	})->prio (1);
…		…
1978		2394
1979	sub cf::client::send_drawinfo {	2395	sub cf::client::send_drawinfo {
1980	my ($self, $text, $flags) = @_;	2396	my ($self, $text, $flags) = @_;
1981		2397
1982	utf8::encode $text;	2398	utf8::encode $text;
1983	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2399	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1984	}	2400	}
1985		2401
		2402	=item $client->send_msg ($color, $type, $msg, [extra...])
		2403
		2404	Send a drawinfo or msg packet to the client, formatting the msg for the
		2405	client if neccessary. C<$type> should be a string identifying the type of
		2406	the message, with C<log> being the default. If C<$color> is negative, suppress
		2407	the message unless the client supports the msg packet.
		2408
		2409	=cut
		2410
		2411	sub cf::client::send_msg {
		2412	my ($self, $color, $type, $msg, @extra) = @_;
		2413
		2414	$msg = $self->pl->expand_cfpod ($msg);
		2415
		2416	return unless @extra || length $msg;
		2417
		2418	if ($self->can_msg) {
		2419	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2420	} else {
		2421	# replace some tags by gcfclient-compatible ones
		2422	for ($msg) {
		2423	1 while
		2424	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2425	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2426	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2427	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2428	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2429	}
		2430
		2431	if ($color >= 0) {
		2432	if (0 && $msg =~ /\[/) {
		2433	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2434	} else {
		2435	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2436	$self->send_packet ("drawinfo $color $msg")
		2437	}
		2438	}
		2439	}
		2440	}
		2441
		2442	=item $client->ext_event ($type, %msg)
		2443
		2444	Sends an ext event to the client.
		2445
		2446	=cut
		2447
		2448	sub cf::client::ext_event($$%) {
		2449	my ($self, $type, %msg) = @_;
		2450
		2451	$msg{msgtype} = "event_$type";
		2452	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2453	}
1986		2454
1987	=item $success = $client->query ($flags, "text", \&cb)	2455	=item $success = $client->query ($flags, "text", \&cb)
1988		2456
1989	Queues a query to the client, calling the given callback with	2457	Queues a query to the client, calling the given callback with
1990	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2458	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1991	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2459	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1992		2460
1993	Queries can fail, so check the return code. Or don't, as queries will become	2461	Queries can fail, so check the return code. Or don't, as queries will
1994	reliable at some point in the future.	2462	become reliable at some point in the future.
1995		2463
1996	=cut	2464	=cut
1997		2465
1998	sub cf::client::query {	2466	sub cf::client::query {
1999	my ($self, $flags, $text, $cb) = @_;	2467	my ($self, $flags, $text, $cb) = @_;
…		…
2007	utf8::encode $text;	2475	utf8::encode $text;
2008	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2476	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2009		2477
2010	$self->send_packet ($self->{query_queue}[0][0])	2478	$self->send_packet ($self->{query_queue}[0][0])
2011	if @{ $self->{query_queue} } == 1;	2479	if @{ $self->{query_queue} } == 1;
		2480
		2481	1
2012	}	2482	}
2013		2483
2014	cf::client->attach (	2484	cf::client->attach (
		2485	on_connect => sub {
		2486	my ($ns) = @_;
		2487
		2488	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2489	},
2015	on_reply => sub {	2490	on_reply => sub {
2016	my ($ns, $msg) = @_;	2491	my ($ns, $msg) = @_;
2017		2492
2018	# this weird shuffling is so that direct followup queries	2493	# this weird shuffling is so that direct followup queries
2019	# get handled first	2494	# get handled first
…		…
2031	} else {	2506	} else {
2032	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2507	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2033	}	2508	}
2034	}	2509	}
2035	},	2510	},
		2511	on_exticmd => sub {
		2512	my ($ns, $buf) = @_;
		2513
		2514	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2515
		2516	if (ref $msg) {
		2517	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2518	if (my %reply = $cb->($ns, $msg)) {
		2519	$reply{msgid} = $msg->{msgid};
		2520	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2521	}
		2522	}
		2523	} else {
		2524	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2525	}
		2526
		2527	cf::override;
		2528	},
2036	);	2529	);
2037		2530
2038	=item $client->async (\&cb)	2531	=item $client->async (\&cb)
2039		2532
2040	Create a new coroutine, running the specified callback. The coroutine will	2533	Create a new coroutine, running the specified callback. The coroutine will
…		…
2087		2580
2088	# here we export the classes and methods available to script code	2581	# here we export the classes and methods available to script code
2089		2582
2090	=pod	2583	=pod
2091		2584
2092	The following fucntions and emthods are available within a safe environment:	2585	The following functions and methods are available within a safe environment:
2093		2586
2094	cf::object contr pay_amount pay_player map	2587	cf::object
		2588	contr pay_amount pay_player map x y force_find force_add
		2589	insert remove
		2590
2095	cf::object::player player	2591	cf::object::player
2096	cf::player peaceful	2592	player
2097	cf::map trigger	2593
		2594	cf::player
		2595	peaceful
		2596
		2597	cf::map
		2598	trigger
2098		2599
2099	=cut	2600	=cut
2100		2601
2101	for (	2602	for (
2102	["cf::object" => qw(contr pay_amount pay_player map)],	2603	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2604	insert remove)],
2103	["cf::object::player" => qw(player)],	2605	["cf::object::player" => qw(player)],
2104	["cf::player" => qw(peaceful)],	2606	["cf::player" => qw(peaceful)],
2105	["cf::map" => qw(trigger)],	2607	["cf::map" => qw(trigger)],
2106	) {	2608	) {
2107	no strict 'refs';	2609	no strict 'refs';
…		…
2178	=back	2680	=back
2179		2681
2180	=cut	2682	=cut
2181		2683
2182	#############################################################################	2684	#############################################################################
2183
2184	=head2 EXTENSION DATABASE SUPPORT
2185
2186	Crossfire maintains a very simple database for extension use. It can
2187	currently store anything that can be serialised using Storable, which
2188	excludes objects.
2189
2190	The parameter C<$family> should best start with the name of the extension
2191	using it, it should be unique.
2192
2193	=over 4
2194
2195	=item $value = cf::db_get $family => $key
2196
2197	Returns a single value from the database.
2198
2199	=item cf::db_put $family => $key => $value
2200
2201	Stores the given C<$value> in the family.
2202
2203	=cut
2204
2205	our $DB;
2206
2207	sub db_init {
2208	unless ($DB) {
2209	$DB = BDB::db_create $DB_ENV;
2210
2211	cf::sync_job {
2212	eval {
2213	$DB->set_flags (BDB::CHKSUM);
2214
2215	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2216	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2217	cf::cleanup "db_open(db): $!" if $!;
2218	};
2219	cf::cleanup "db_open(db): $@" if $@;
2220	};
2221
2222	my $path = cf::localdir . "/database.pst";
2223	if (stat $path) {
2224	cf::sync_job {
2225	my $pst = Storable::retrieve $path;
2226
2227	cf::db_put (board => data => $pst->{board});
2228	cf::db_put (guildrules => data => $pst->{guildrules});
2229	cf::db_put (rent => balance => $pst->{rent}{balance});
2230	BDB::db_env_txn_checkpoint $DB_ENV;
2231
2232	unlink $path;
2233	};
2234	}
2235	}
2236	}
2237
2238	sub db_get($$) {
2239	my $key = "$_[0]/$_[1]";
2240
2241	cf::sync_job {
2242	BDB::db_get $DB, undef, $key, my $data;
2243
2244	$! ? ()
2245	: Compress::LZF::sthaw $data
2246	}
2247	}
2248
2249	sub db_put($$$) {
2250	BDB::dbreq_pri 4;
2251	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2252	}
2253
2254	#############################################################################
2255	# the server's init and main functions	2685	# the server's init and main functions
2256		2686
2257	sub init_resources {	2687	sub load_facedata($) {
2258	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2688	my ($path) = @_;
		2689
		2690	warn "loading facedata from $path\n";
		2691
		2692	my $facedata;
		2693	0 < aio_load $path, $facedata
		2694	or die "$path: $!";
		2695
		2696	$facedata = Coro::Storable::thaw $facedata;
		2697
		2698	$facedata->{version} == 2
		2699	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2700
		2701	{
		2702	my $faces = $facedata->{faceinfo};
		2703
		2704	while (my ($face, $info) = each %$faces) {
		2705	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2706	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2707	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2708	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2709	Coro::cede;
		2710	}
		2711
		2712	while (my ($face, $info) = each %$faces) {
		2713	next unless $info->{smooth};
		2714	my $idx = cf::face::find $face
		2715	or next;
		2716	if (my $smooth = cf::face::find $info->{smooth}) {
		2717	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2718	} else {
		2719	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2720	}
		2721	Coro::cede;
		2722	}
		2723	}
		2724
		2725	{
		2726	my $anims = $facedata->{animinfo};
		2727
		2728	while (my ($anim, $info) = each %$anims) {
		2729	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2730	Coro::cede;
		2731	}
		2732
		2733	cf::anim::invalidate_all; # d'oh
		2734	}
		2735
		2736	1
		2737	}
		2738
		2739	sub reload_regions {
		2740	load_resource_file "$MAPDIR/regions"
2259	or die "unable to load regions file\n";#d#	2741	or die "unable to load regions file\n";
		2742	}
		2743
		2744	sub reload_facedata {
		2745	load_facedata "$DATADIR/facedata"
		2746	or die "unable to load facedata\n";
		2747	}
		2748
		2749	sub reload_archetypes {
		2750	load_resource_file "$DATADIR/archetypes"
		2751	or die "unable to load archetypes\n";
		2752	#d# NEED to laod twice to resolve forward references
		2753	# this really needs to be done in an extra post-pass
		2754	# (which needs to be synchronous, so solve it differently)
		2755	load_resource_file "$DATADIR/archetypes"
		2756	or die "unable to load archetypes\n";
		2757	}
		2758
		2759	sub reload_treasures {
		2760	load_resource_file "$DATADIR/treasures"
		2761	or die "unable to load treasurelists\n";
		2762	}
		2763
		2764	sub reload_resources {
		2765	warn "reloading resource files...\n";
		2766
		2767	reload_regions;
		2768	reload_facedata;
		2769	#reload_archetypes;#d#
		2770	reload_archetypes;
		2771	reload_treasures;
		2772
		2773	warn "finished reloading resource files\n";
		2774	}
		2775
		2776	sub init {
		2777	reload_resources;
2260	}	2778	}
2261		2779
2262	sub cfg_load {	2780	sub cfg_load {
2263	open my $fh, "<:utf8", cf::confdir . "/config"	2781	open my $fh, "<:utf8", "$CONFDIR/config"
2264	or return;	2782	or return;
2265		2783
2266	local $/;	2784	local $/;
2267	*CFG = YAML::Syck::Load <$fh>;	2785	*CFG = YAML::Syck::Load <$fh>;
2268		2786
…		…
2276	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2794	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2277	and die "WARNING: m(un)lockall failed: $!\n";	2795	and die "WARNING: m(un)lockall failed: $!\n";
2278	};	2796	};
2279	warn $@ if $@;	2797	warn $@ if $@;
2280	}	2798	}
2281	}
2282
2283	sub init {
2284	init_resources;
2285	}	2799	}
2286		2800
2287	sub main {	2801	sub main {
2288	# we must not ever block the main coroutine	2802	# we must not ever block the main coroutine
2289	local $Coro::idle = sub {	2803	local $Coro::idle = sub {
…		…
2317	},	2831	},
2318	);	2832	);
2319	}	2833	}
2320	}	2834	}
2321		2835
		2836	sub write_runtime {
		2837	my $runtime = "$LOCALDIR/runtime";
		2838
		2839	# first touch the runtime file to show we are still running:
		2840	# the fsync below can take a very very long time.
		2841
		2842	IO::AIO::aio_utime $runtime, undef, undef;
		2843
		2844	my $guard = cf::lock_acquire "write_runtime";
		2845
		2846	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2847	or return;
		2848
		2849	my $value = $cf::RUNTIME + 90 + 10;
		2850	# 10 is the runtime save interval, for a monotonic clock
		2851	# 60 allows for the watchdog to kill the server.
		2852
		2853	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2854	and return;
		2855
		2856	# always fsync - this file is important
		2857	aio_fsync $fh
		2858	and return;
		2859
		2860	# touch it again to show we are up-to-date
		2861	aio_utime $fh, undef, undef;
		2862
		2863	close $fh
		2864	or return;
		2865
		2866	aio_rename "$runtime~", $runtime
		2867	and return;
		2868
		2869	warn "runtime file written.\n";
		2870
		2871	1
		2872	}
		2873
2322	sub emergency_save() {	2874	sub emergency_save() {
2323	my $freeze_guard = cf::freeze_mainloop;	2875	my $freeze_guard = cf::freeze_mainloop;
2324		2876
2325	warn "enter emergency perl save\n";	2877	warn "enter emergency perl save\n";
2326		2878
…		…
2357		2909
2358	warn Carp::longmess "post_cleanup backtrace"	2910	warn Carp::longmess "post_cleanup backtrace"
2359	if $make_core;	2911	if $make_core;
2360	}	2912	}
2361		2913
2362	sub reload() {	2914	sub do_reload_perl() {
2363	# can/must only be called in main	2915	# can/must only be called in main
2364	if ($Coro::current != $Coro::main) {	2916	if ($Coro::current != $Coro::main) {
2365	warn "can only reload from main coroutine";	2917	warn "can only reload from main coroutine";
2366	return;	2918	return;
2367	}	2919	}
…		…
2392	Coro::cede;	2944	Coro::cede;
2393	last unless IO::AIO::nreqs || BDB::nreqs;	2945	last unless IO::AIO::nreqs || BDB::nreqs;
2394	warn "iterate...";	2946	warn "iterate...";
2395	}	2947	}
2396		2948
		2949	++$RELOAD;
		2950
2397	warn "cancelling all extension coros";	2951	warn "cancelling all extension coros";
2398	$_->cancel for values %EXT_CORO;	2952	$_->cancel for values %EXT_CORO;
2399	%EXT_CORO = ();	2953	%EXT_CORO = ();
2400		2954
2401	warn "removing commands";	2955	warn "removing commands";
2402	%COMMAND = ();	2956	%COMMAND = ();
2403		2957
2404	warn "removing ext commands";	2958	warn "removing ext/exti commands";
2405	%EXTCMD = ();	2959	%EXTCMD = ();
		2960	%EXTICMD = ();
2406		2961
2407	warn "unloading/nuking all extensions";	2962	warn "unloading/nuking all extensions";
2408	for my $pkg (@EXTS) {	2963	for my $pkg (@EXTS) {
2409	warn "... unloading $pkg";	2964	warn "... unloading $pkg";
2410		2965
…		…
2440	Symbol::delete_package "safe::$_"	2995	Symbol::delete_package "safe::$_"
2441	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2996	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2442		2997
2443	warn "unloading cf.pm \"a bit\"";	2998	warn "unloading cf.pm \"a bit\"";
2444	delete $INC{"cf.pm"};	2999	delete $INC{"cf.pm"};
		3000	delete $INC{"cf/pod.pm"};
2445		3001
2446	# don't, removes xs symbols, too,	3002	# don't, removes xs symbols, too,
2447	# and global variables created in xs	3003	# and global variables created in xs
2448	#Symbol::delete_package __PACKAGE__;	3004	#Symbol::delete_package __PACKAGE__;
2449		3005
…		…
2458		3014
2459	warn "loading extensions";	3015	warn "loading extensions";
2460	cf::load_extensions;	3016	cf::load_extensions;
2461		3017
2462	warn "reattaching attachments to objects/players";	3018	warn "reattaching attachments to objects/players";
2463	_global_reattach;	3019	_global_reattach; # objects, sockets
2464	warn "reattaching attachments to maps";	3020	warn "reattaching attachments to maps";
2465	reattach $_ for values %MAP;	3021	reattach $_ for values %MAP;
2466		3022	warn "reattaching attachments to players";
2467	warn "loading reloadable resources";	3023	reattach $_ for values %PLAYER;
2468	init_resources;
2469		3024
2470	warn "leaving sync_job";	3025	warn "leaving sync_job";
2471		3026
2472	1	3027	1
2473	} or do {	3028	} or do {
…		…
2479	warn "reloaded";	3034	warn "reloaded";
2480	};	3035	};
2481		3036
2482	our $RELOAD_WATCHER; # used only during reload	3037	our $RELOAD_WATCHER; # used only during reload
2483		3038
		3039	sub reload_perl() {
		3040	# doing reload synchronously and two reloads happen back-to-back,
		3041	# coro crashes during coro_state_free->destroy here.
		3042
		3043	$RELOAD_WATCHER ||= Event->timer (
		3044	reentrant => 0,
		3045	after => 0,
		3046	data => WF_AUTOCANCEL,
		3047	cb => sub {
		3048	do_reload_perl;
		3049	undef $RELOAD_WATCHER;
		3050	},
		3051	);
		3052	}
		3053
2484	register_command "reload" => sub {	3054	register_command "reload" => sub {
2485	my ($who, $arg) = @_;	3055	my ($who, $arg) = @_;
2486		3056
2487	if ($who->flag (FLAG_WIZ)) {	3057	if ($who->flag (FLAG_WIZ)) {
2488	$who->message ("reloading server.");	3058	$who->message ("reloading server.");
2489		3059	async { reload_perl };
2490	# doing reload synchronously and two reloads happen back-to-back,
2491	# coro crashes during coro_state_free->destroy here.
2492
2493	$RELOAD_WATCHER ||= Event->timer (
2494	reentrant => 0,
2495	after => 0,
2496	data => WF_AUTOCANCEL,
2497	cb => sub {
2498	reload;
2499	undef $RELOAD_WATCHER;
2500	},
2501	);
2502	}	3060	}
2503	};	3061	};
2504		3062
2505	unshift @INC, $LIBDIR;	3063	unshift @INC, $LIBDIR;
2506		3064
2507	my $bug_warning = 0;	3065	my $bug_warning = 0;
2508		3066
		3067	our @WAIT_FOR_TICK;
		3068	our @WAIT_FOR_TICK_BEGIN;
		3069
		3070	sub wait_for_tick {
		3071	return unless $TICK_WATCHER->is_active;
		3072	return if $Coro::current == $Coro::main;
		3073
		3074	my $signal = new Coro::Signal;
		3075	push @WAIT_FOR_TICK, $signal;
		3076	$signal->wait;
		3077	}
		3078
		3079	sub wait_for_tick_begin {
		3080	return unless $TICK_WATCHER->is_active;
		3081	return if $Coro::current == $Coro::main;
		3082
		3083	my $signal = new Coro::Signal;
		3084	push @WAIT_FOR_TICK_BEGIN, $signal;
		3085	$signal->wait;
		3086	}
		3087
		3088	my $min = 1e6;#d#
		3089	my $avg = 10;
2509	$TICK_WATCHER = Event->timer (	3090	$TICK_WATCHER = Event->timer (
2510	reentrant => 0,	3091	reentrant => 0,
2511	parked => 1,	3092	parked => 1,
2512	prio => 0,	3093	prio => 0,
2513	at => $NEXT_TICK || $TICK,	3094	at => $NEXT_TICK || $TICK,
…		…
2517	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3098	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2518	unless ++$bug_warning > 10;	3099	unless ++$bug_warning > 10;
2519	return;	3100	return;
2520	}	3101	}
2521		3102
2522	$NOW = Event::time;	3103	$NOW = $tick_start = Event::time;
2523		3104
2524	cf::server_tick; # one server iteration	3105	cf::server_tick; # one server iteration
		3106
		3107	0 && sync_job {#d#
		3108	for(1..10) {
		3109	my $t = Event::time;
		3110	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3111	or die;
		3112
		3113	$map->width (50);
		3114	$map->height (50);
		3115	$map->alloc;
		3116	$map->_load_objects ("/tmp/x.map", 1);
		3117	my $t = Event::time - $t;
		3118
		3119	#next unless $t < 0.0013;#d#
		3120	if ($t < $min) {
		3121	$min = $t;
		3122	}
		3123	$avg = $avg * 0.99 + $t * 0.01;
		3124	}
		3125	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3126	exit 0;
		3127	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3128	};
		3129
2525	$RUNTIME += $TICK;	3130	$RUNTIME += $TICK;
2526	$NEXT_TICK += $TICK;	3131	$NEXT_TICK += $TICK;
2527		3132
2528	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3133	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2529	$NEXT_RUNTIME_WRITE = $NOW + 10;	3134	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2531	write_runtime	3136	write_runtime
2532	or warn "ERROR: unable to write runtime file: $!";	3137	or warn "ERROR: unable to write runtime file: $!";
2533	};	3138	};
2534	}	3139	}
2535		3140
2536	$WAIT_FOR_TICK->broadcast;
2537	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2538
2539	# my $AFTER = Event::time;	3141	# my $AFTER = Event::time;
2540	# warn $AFTER - $NOW;#d#	3142	# warn $AFTER - $NOW;#d#
2541		3143
		3144	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3145	$sig->send;
		3146	}
		3147	while (my $sig = shift @WAIT_FOR_TICK) {
		3148	$sig->send;
		3149	}
		3150
		3151	$NOW = Event::time;
		3152
2542	# if we are delayed by four ticks or more, skip them all	3153	# if we are delayed by four ticks or more, skip them all
2543	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3154	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2544		3155
2545	$TICK_WATCHER->at ($NEXT_TICK);	3156	$TICK_WATCHER->at ($NEXT_TICK);
2546	$TICK_WATCHER->start;	3157	$TICK_WATCHER->start;
		3158
		3159	$LOAD = ($NOW - $tick_start) / $TICK;
		3160	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3161
		3162	_post_tick;
		3163
		3164
2547	},	3165	},
2548	);	3166	);
2549		3167
2550	{	3168	{
2551	BDB::max_poll_time $TICK * 0.1;	3169	BDB::max_poll_time $TICK * 0.1;
…		…
2579		3197
2580	cf::sync_job {	3198	cf::sync_job {
2581	eval {	3199	eval {
2582	BDB::db_env_open	3200	BDB::db_env_open
2583	$DB_ENV,	3201	$DB_ENV,
2584	$BDB_ENV_DIR,	3202	$BDBDIR,
2585	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3203	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2586	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3204	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2587	0666;	3205	0666;
2588		3206
2589	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3207	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2590		3208
2591	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3209	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2592	$DB_ENV->set_lk_detect;	3210	$DB_ENV->set_lk_detect;
2593	};	3211	};
2594		3212
…		…
2610	prio => 6,	3228	prio => 6,
2611	cb => \&IO::AIO::poll_cb,	3229	cb => \&IO::AIO::poll_cb,
2612	);	3230	);
2613	}	3231	}
2614		3232
		3233	my $_log_backtrace;
		3234
		3235	sub _log_backtrace {
		3236	my ($msg, @addr) = @_;
		3237
		3238	$msg =~ s/\n//;
		3239
		3240	# limit the # of concurrent backtraces
		3241	if ($_log_backtrace < 2) {
		3242	++$_log_backtrace;
		3243	async {
		3244	my @bt = fork_call {
		3245	@addr = map { sprintf "%x", $_ } @addr;
		3246	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3247	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3248	or die "addr2line: $!";
		3249
		3250	my @funcs;
		3251	my @res = <$fh>;
		3252	chomp for @res;
		3253	while (@res) {
		3254	my ($func, $line) = splice @res, 0, 2, ();
		3255	push @funcs, "[$func] $line";
		3256	}
		3257
		3258	@funcs
		3259	};
		3260
		3261	LOG llevInfo, "[ABT] $msg\n";
		3262	LOG llevInfo, "[ABT] $_\n" for @bt;
		3263	--$_log_backtrace;
		3264	};
		3265	} else {
		3266	LOG llevInfo, "[ABT] $msg\n";
		3267	LOG llevInfo, "[ABT] [suppressed]\n";
		3268	}
		3269	}
		3270
		3271	# load additional modules
		3272	use cf::pod;
		3273
2615	END { cf::emergency_save }	3274	END { cf::emergency_save }
2616		3275
2617	1	3276	1
2618		3277

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