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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 1.299 by root, Sun Jul 8 14:56:05 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 _store_scalar {
367	# 10 is the runtime save interval, for a monotonic clock	415	open my $fh, ">", \my $buf
368	# 60 allows for the watchdog to kill the server.	416	or die "fork_call: cannot open fh-to-buf in child : $!";
369		417	Storable::store_fd $_[0], $fh;
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
371	and return;
372
373	# always fsync - this file is important
374	aio_fsync $fh
375	and return;
376
377	close $fh	418	close $fh;
378	or return;
379		419
380	aio_rename "$runtime~", $runtime	420	$buf
381	and return;	421	}
382		422
		423	sub fork_call(&@) {
		424	my ($cb, @args) = @_;
		425
		426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		427	# or die "socketpair: $!";
		428	pipe my $fh1, my $fh2
		429	or die "pipe: $!";
		430
		431	if (my $pid = fork) {
		432	close $fh2;
		433
		434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		435	warn "pst<$res>" unless $res =~ /^pst/;
		436	$res = Coro::Storable::thaw $res;
		437
		438	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		439
		440	Carp::confess $$res unless "ARRAY" eq ref $res;
		441
		442	return wantarray ? @$res : $res->[-1];
		443	} else {
		444	reset_signals;
		445	local $SIG{__WARN__};
		446	local $SIG{__DIE__};
		447	# just in case, this hack effectively disables event
		448	# in the child. cleaner and slower would be canceling all watchers,
		449	# but this works for the time being.
		450	local $Coro::idle;
		451	$Coro::current->prio (Coro::PRIO_MAX);
		452
		453	eval {
		454	close $fh1;
		455
		456	my @res = eval { $cb->(@args) };
		457
		458	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		459	close $fh2;
		460	};
		461
		462	warn $@ if $@;
		463	_exit 0;
383	1	464	}
		465	}
		466
		467	=item $value = cf::db_get $family => $key
		468
		469	Returns a single value from the environment database.
		470
		471	=item cf::db_put $family => $key => $value
		472
		473	Stores the given C<$value> in the family. It can currently store binary
		474	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		475
		476	=cut
		477
		478	our $DB;
		479
		480	sub db_init {
		481	unless ($DB) {
		482	$DB = BDB::db_create $DB_ENV;
		483
		484	cf::sync_job {
		485	eval {
		486	$DB->set_flags (BDB::CHKSUM);
		487
		488	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		489	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		490	cf::cleanup "db_open(db): $!" if $!;
		491	};
		492	cf::cleanup "db_open(db): $@" if $@;
		493	};
		494	}
		495	}
		496
		497	sub db_get($$) {
		498	my $key = "$_[0]/$_[1]";
		499
		500	cf::sync_job {
		501	BDB::db_get $DB, undef, $key, my $data;
		502
		503	$! ? ()
		504	: $data
		505	}
		506	}
		507
		508	sub db_put($$$) {
		509	BDB::dbreq_pri 4;
		510	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		511	}
		512
		513	=item cf::cache $id => [$paths...], $processversion => $process
		514
		515	Generic caching function that returns the value of the resource $id,
		516	caching and regenerating as required.
		517
		518	This function can block.
		519
		520	=cut
		521
		522	sub cache {
		523	my ($id, $src, $processversion, $process) = @_;
		524
		525	my $meta =
		526	join "\x00",
		527	$processversion,
		528	map {
		529	aio_stat $_
		530	and Carp::croak "$_: $!";
		531
		532	($_, (stat _)[7,9])
		533	} @$src;
		534
		535	my $dbmeta = db_get cache => "$id/meta";
		536	if ($dbmeta ne $meta) {
		537	# changed, we may need to process
		538
		539	my @data;
		540	my $md5;
		541
		542	for (0 .. $#$src) {
		543	0 <= aio_load $src->[$_], $data[$_]
		544	or Carp::croak "$src->[$_]: $!";
		545	}
		546
		547	# if processing is expensive, check
		548	# checksum first
		549	if (1) {
		550	$md5 =
		551	join "\x00",
		552	$processversion,
		553	map {
		554	Coro::cede;
		555	($src->[$_], Digest::MD5::md5_hex $data[$_])
		556	} 0.. $#$src;
		557
		558
		559	my $dbmd5 = db_get cache => "$id/md5";
		560	if ($dbmd5 eq $md5) {
		561	db_put cache => "$id/meta", $meta;
		562
		563	return db_get cache => "$id/data";
		564	}
		565	}
		566
		567	my $t1 = Time::HiRes::time;
		568	my $data = $process->(\@data);
		569	my $t2 = Time::HiRes::time;
		570
		571	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		572
		573	db_put cache => "$id/data", $data;
		574	db_put cache => "$id/md5" , $md5;
		575	db_put cache => "$id/meta", $meta;
		576
		577	return $data;
		578	}
		579
		580	db_get cache => "$id/data"
		581	}
		582
		583	=item cf::datalog type => key => value, ...
		584
		585	Log a datalog packet of the given type with the given key-value pairs.
		586
		587	=cut
		588
		589	sub datalog($@) {
		590	my ($type, %kv) = @_;
		591	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384	}	592	}
385		593
386	=back	594	=back
387		595
388	=cut	596	=cut
…		…
395	attach callbacks/event handlers (a collection of which is called an "attachment")	603	attach callbacks/event handlers (a collection of which is called an "attachment")
396	to it. All such attachable objects support the following methods.	604	to it. All such attachable objects support the following methods.
397		605
398	In the following description, CLASS can be any of C<global>, C<object>	606	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	607	C<player>, C<client> or C<map> (i.e. the attachable objects in
400	crossfire+).	608	Crossfire TRT).
401		609
402	=over 4	610	=over 4
403		611
404	=item $attachable->attach ($attachment, key => $value...)	612	=item $attachable->attach ($attachment, key => $value...)
405		613
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	776	$registry = $CB_TYPE[$object_type] ||= [];
569		777
570	} elsif ($type eq "subtype") {	778	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	779	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	780	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	781	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		782
575	} elsif ($type eq "package") {	783	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	784	my $pkg = shift @arg;
577		785
578	while (my ($name, $id) = each %cb_id) {	786	while (my ($name, $id) = each %cb_id) {
…		…
607	_attach $registry, $klass, @attach;	815	_attach $registry, $klass, @attach;
608	}	816	}
609		817
610	$obj->{$name} = \%arg;	818	$obj->{$name} = \%arg;
611	} else {	819	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	820	warn "object uses attachment '$name' which is not available, postponing.\n";
613	}	821	}
614		822
615	$obj->{_attachment}{$name} = undef;	823	$obj->{_attachment}{$name} = undef;
616	}	824	}
617		825
…		…
619	if (ref $_[0]) {	827	if (ref $_[0]) {
620	_object_attach @_;	828	_object_attach @_;
621	} else {	829	} else {
622	_attach shift->_attach_registry, @_;	830	_attach shift->_attach_registry, @_;
623	}	831	}
		832	_recalc_want;
624	};	833	};
625		834
626	# all those should be optimised	835	# all those should be optimised
627	sub cf::attachable::detach {	836	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	837	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	840	delete $obj->{_attachment}{$name};
632	reattach ($obj);	841	reattach ($obj);
633	} else {	842	} else {
634	Carp::croak "cannot, currently, detach class attachments";	843	Carp::croak "cannot, currently, detach class attachments";
635	}	844	}
		845	_recalc_want;
636	};	846	};
637		847
638	sub cf::attachable::attached {	848	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	849	my ($obj, $name) = @_;
640		850
…		…
813	or return;	1023	or return;
814	$av = eval { (Storable::thaw $av)->{objs} };	1024	$av = eval { (Storable::thaw $av)->{objs} };
815	}	1025	}
816		1026
817	warn sprintf "loading %s (%d)\n",	1027	warn sprintf "loading %s (%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1028	$filename, length $data, scalar @{$av || []};
819	return ($data, $av);	1029	return ($data, $av);
820	}	1030	}
		1031
		1032	=head2 COMMAND CALLBACKS
		1033
		1034	=over 4
		1035
		1036	=cut
821		1037
822	#############################################################################	1038	#############################################################################
823	# command handling &c	1039	# command handling &c
824		1040
825	=item cf::register_command $name => \&callback($ob,$args);	1041	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1054	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1055	}
840		1056
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1057	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1058
843	Register a callbackf ro execution when the client sends an extcmd packet.	1059	Register a callback for execution when the client sends an (synchronous)
		1060	extcmd packet. Ext commands will be processed in the order they are
		1061	received by the server, like other user commands. The first argument is
		1062	the logged-in player. Ext commands can only be processed after a player
		1063	has logged in successfully.
844		1064
845	If the callback returns something, it is sent back as if reply was being	1065	If the callback returns something, it is sent back as if reply was being
846	called.	1066	called.
847		1067
		1068	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1069
		1070	Register a callback for execution when the client sends an (asynchronous)
		1071	exticmd packet. Exti commands are processed by the server as soon as they
		1072	are received, i.e. out of order w.r.t. other commands. The first argument
		1073	is a client socket. Exti commands can be received anytime, even before
		1074	log-in.
		1075
		1076	If the callback returns something, it is sent back as if reply was being
		1077	called.
		1078
848	=cut	1079	=cut
849		1080
850	sub register_extcmd {	1081	sub register_extcmd {
851	my ($name, $cb) = @_;	1082	my ($name, $cb) = @_;
852		1083
853	$EXTCMD{$name} = $cb;	1084	$EXTCMD{$name} = $cb;
		1085	}
		1086
		1087	sub register_exticmd {
		1088	my ($name, $cb) = @_;
		1089
		1090	$EXTICMD{$name} = $cb;
854	}	1091	}
855		1092
856	cf::player->attach (	1093	cf::player->attach (
857	on_command => sub {	1094	on_command => sub {
858	my ($pl, $name, $params) = @_;	1095	my ($pl, $name, $params) = @_;
…		…
867	cf::override;	1104	cf::override;
868	},	1105	},
869	on_extcmd => sub {	1106	on_extcmd => sub {
870	my ($pl, $buf) = @_;	1107	my ($pl, $buf) = @_;
871		1108
872	my $msg = eval { from_json $buf };	1109	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
873		1110
874	if (ref $msg) {	1111	if (ref $msg) {
875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1112	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
876	if (my %reply = $cb->($pl, $msg)) {	1113	if (my %reply = $cb->($pl, $msg)) {
877	$pl->ext_reply ($msg->{msgid}, %reply);	1114	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
883		1120
884	cf::override;	1121	cf::override;
885	},	1122	},
886	);	1123	);
887		1124
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 {	1125	sub load_extensions {
		1126	cf::sync_job {
		1127	my %todo;
		1128
923	for my $ext (<$LIBDIR/*.ext>) {	1129	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1130	next unless -r $path;
925	eval {	1131
926	load_extension $ext;	1132	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1133	my $base = $1;
		1134	my $pkg = $1;
		1135	$pkg =~ s/[^[:word:]]/_/g;
		1136	$pkg = "ext::$pkg";
		1137
		1138	open my $fh, "<:utf8", $path
		1139	or die "$path: $!";
		1140
		1141	my $source = do { local $/; <$fh> };
		1142
		1143	my %ext = (
		1144	path => $path,
		1145	base => $base,
		1146	pkg => $pkg,
		1147	);
		1148
		1149	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1150	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1151
		1152	$ext{source} =
		1153	"package $pkg; use strict; use utf8;\n"
		1154	. "#line 1 \"$path\"\n{\n"
		1155	. $source
		1156	. "\n};\n1";
		1157
		1158	$todo{$base} = \%ext;
		1159	}
		1160
		1161	my %done;
		1162	while (%todo) {
		1163	my $progress;
		1164
		1165	while (my ($k, $v) = each %todo) {
		1166	for (split /,\s*/, $v->{meta}{depends}) {
		1167	goto skip
		1168	unless exists $done{$_};
		1169	}
		1170
		1171	warn "... loading '$k' into '$v->{pkg}'\n";
		1172
		1173	unless (eval $v->{source}) {
		1174	my $msg = $@ ? "$v->{path}: $@\n"
		1175	: "$v->{base}: extension inactive.\n";
		1176
		1177	if (exists $v->{meta}{mandatory}) {
		1178	warn $msg;
		1179	warn "mandatory extension failed to load, exiting.\n";
		1180	exit 1;
		1181	}
		1182
		1183	warn $msg;
		1184	}
		1185
		1186	$done{$k} = delete $todo{$k};
		1187	push @EXTS, $v->{pkg};
		1188	$progress = 1;
927	1	1189	}
928	} or warn "$ext not loaded: $@";	1190
		1191	skip:
		1192	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1193	unless $progress;
		1194	}
929	}	1195	};
930	}	1196	}
931		1197
932	#############################################################################	1198	#############################################################################
933		1199
		1200	=back
		1201
934	=head2 CORE EXTENSIONS	1202	=head2 CORE EXTENSIONS
935		1203
936	Functions and methods that extend core crossfire objects.	1204	Functions and methods that extend core crossfire objects.
937		1205
938	=cut	1206	=cut
…		…
950	Returns the given player object, loading it if necessary (might block).	1218	Returns the given player object, loading it if necessary (might block).
951		1219
952	=cut	1220	=cut
953		1221
954	sub playerdir($) {	1222	sub playerdir($) {
955	cf::localdir	1223	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1224	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1225	}
961		1226
962	sub path($) {	1227	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1228	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1229
965	(playerdir $login) . "/$login.pl"	1230	(playerdir $login) . "/playerdata"
966	}	1231	}
967		1232
968	sub find_active($) {	1233	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1234	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1235	and $cf::PLAYER{$_[0]}->active
…		…
983	my $login = $_[0];	1248	my $login = $_[0];
984		1249
985	my $guard = cf::lock_acquire "user_find:$login";	1250	my $guard = cf::lock_acquire "user_find:$login";
986		1251
987	$cf::PLAYER{$_[0]} || do {	1252	$cf::PLAYER{$_[0]} || do {
		1253	# rename old playerfiles to new ones
		1254	#TODO: remove when no longer required
		1255	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1256	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1257	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1258	aio_unlink +(playerdir $login) . "/$login.pl";
		1259
988	my $pl = load_pl path $login	1260	my $pl = load_pl path $login
989	or return;	1261	or return;
990	$cf::PLAYER{$login} = $pl	1262	$cf::PLAYER{$login} = $pl
991	}	1263	}
992	}	1264	}
…		…
1054	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;	1326	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1055		1327
1056	IO::AIO::aio_rmtree $temp;	1328	IO::AIO::aio_rmtree $temp;
1057	}	1329	}
1058		1330
		1331	=item $pl->kick
		1332
		1333	Kicks a player out of the game. This destroys the connection.
		1334
		1335	=cut
		1336
		1337	sub kick {
		1338	my ($pl, $kicker) = @_;
		1339
		1340	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1341	$pl->killer ("kicked");
		1342	$pl->ns->destroy;
		1343	}
		1344
1059	=item cf::player::list_logins	1345	=item cf::player::list_logins
1060		1346
1061	Returns am arrayref of all valid playernames in the system, can take a	1347	Returns am arrayref of all valid playernames in the system, can take a
1062	while and may block, so not sync_job-capable, ever.	1348	while and may block, so not sync_job-capable, ever.
1063		1349
1064	=cut	1350	=cut
1065		1351
1066	sub list_logins {	1352	sub list_logins {
1067	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1353	my $dirs = aio_readdir $PLAYERDIR
1068	or return [];	1354	or return [];
1069		1355
1070	my @logins;	1356	my @logins;
1071		1357
1072	for my $login (@$dirs) {	1358	for my $login (@$dirs) {
…		…
1107	}	1393	}
1108		1394
1109	\@paths	1395	\@paths
1110	}	1396	}
1111		1397
		1398	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1399
		1400	Expand crossfire pod fragments into protocol xml.
		1401
		1402	=cut
		1403
		1404	sub expand_cfpod {
		1405	((my $self), (local $_)) = @_;
		1406
		1407	# escape & and <
		1408	s/&/&amp;/g;
		1409	s/(?<![BIUGH])</&lt;/g;
		1410
		1411	# this is buggy, it needs to properly take care of nested <'s
		1412
		1413	1 while
		1414	# replace B<>, I<>, U<> etc.
		1415	s/B<([^\>]*)>/<b>$1<\/b>/
		1416	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1417	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1418	# replace G<male|female> tags
		1419	|| s{G<([^>|]*)\|([^>]*)>}{
		1420	$self->gender ? $2 : $1
		1421	}ge
		1422	# replace H<hint text>
		1423	|| s{H<([^\>]*)>}
		1424	{
		1425	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1426	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1427	"")
		1428	[$self->{hintmode}]
		1429	}ge;
		1430
		1431	# create single paragraphs (very hackish)
		1432	s/(?<=\S)\n(?=\w)/ /g;
		1433
		1434	# compress some whitespace
		1435	s/\s+\n/\n/g; # ws line-ends
		1436	s/\n\n+/\n/g; # double lines
		1437	s/^\n+//; # beginning lines
		1438	s/\n+$//; # ending lines
		1439
		1440	$_
		1441	}
		1442
		1443	sub hintmode {
		1444	$_[0]{hintmode} = $_[1] if @_ > 1;
		1445	$_[0]{hintmode}
		1446	}
		1447
1112	=item $player->ext_reply ($msgid, $msgtype, %msg)	1448	=item $player->ext_reply ($msgid, %msg)
1113		1449
1114	Sends an ext reply to the player.	1450	Sends an ext reply to the player.
1115		1451
1116	=cut	1452	=cut
1117		1453
1118	sub ext_reply($$$%) {	1454	sub ext_reply($$%) {
1119	my ($self, $id, %msg) = @_;	1455	my ($self, $id, %msg) = @_;
1120		1456
1121	$msg{msgid} = $id;	1457	$msg{msgid} = $id;
1122		1458	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1123	$self->send ("ext " . cf::to_json \%msg);
1124	}	1459	}
1125		1460
1126	package cf;	1461	=item $player->ext_event ($type, %msg)
		1462
		1463	Sends an ext event to the client.
		1464
		1465	=cut
		1466
		1467	sub ext_event($$%) {
		1468	my ($self, $type, %msg) = @_;
		1469
		1470	$self->ns->ext_event ($type, %msg);
		1471	}
		1472
		1473	=head3 cf::region
		1474
		1475	=over 4
		1476
		1477	=cut
		1478
		1479	package cf::region;
		1480
		1481	=item cf::region::find_by_path $path
		1482
		1483	Tries to decuce the likely region for a map knowing only its path.
		1484
		1485	=cut
		1486
		1487	sub find_by_path($) {
		1488	my ($path) = @_;
		1489
		1490	my ($match, $specificity);
		1491
		1492	for my $region (list) {
		1493	if ($region->match && $path =~ $region->match) {
		1494	($match, $specificity) = ($region, $region->specificity)
		1495	if $region->specificity > $specificity;
		1496	}
		1497	}
		1498
		1499	$match
		1500	}
1127		1501
1128	=back	1502	=back
1129
1130		1503
1131	=head3 cf::map	1504	=head3 cf::map
1132		1505
1133	=over 4	1506	=over 4
1134		1507
…		…
1189	my ($self, $merge) = @_;	1562	my ($self, $merge) = @_;
1190		1563
1191	# we have to keep some variables in memory intact	1564	# we have to keep some variables in memory intact
1192	local $self->{path};	1565	local $self->{path};
1193	local $self->{load_path};	1566	local $self->{load_path};
1194	local $self->{deny_save};
1195	local $self->{deny_reset};
1196		1567
1197	$self->SUPER::thawer_merge ($merge);	1568	$self->SUPER::thawer_merge ($merge);
1198	}	1569	}
1199		1570
1200	sub normalise {	1571	sub normalise {
…		…
1272		1643
1273	# the original (read-only) location	1644	# the original (read-only) location
1274	sub load_path {	1645	sub load_path {
1275	my ($self) = @_;	1646	my ($self) = @_;
1276		1647
1277	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1648	"$MAPDIR/$self->{path}.map"
1278	}	1649	}
1279		1650
1280	# the temporary/swap location	1651	# the temporary/swap location
1281	sub save_path {	1652	sub save_path {
1282	my ($self) = @_;	1653	my ($self) = @_;
1283		1654
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1655	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1285	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1656	"$TMPDIR/$path.map"
1286	}	1657	}
1287		1658
1288	# the unique path, undef == no special unique path	1659	# the unique path, undef == no special unique path
1289	sub uniq_path {	1660	sub uniq_path {
1290	my ($self) = @_;	1661	my ($self) = @_;
1291		1662
1292	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1663	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1293	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1664	"$UNIQUEDIR/$path"
1294	}	1665	}
1295		1666
1296	# and all this just because we cannot iterate over	1667	# and all this just because we cannot iterate over
1297	# all maps in C++...	1668	# all maps in C++...
1298	sub change_all_map_light {	1669	sub change_all_map_light {
1299	my ($change) = @_;	1670	my ($change) = @_;
1300		1671
1301	$_->change_map_light ($change)	1672	$_->change_map_light ($change)
1302	for grep $_->outdoor, values %cf::MAP;	1673	for grep $_->outdoor, values %cf::MAP;
		1674	}
		1675
		1676	sub decay_objects {
		1677	my ($self) = @_;
		1678
		1679	return if $self->{deny_reset};
		1680
		1681	$self->do_decay_objects;
1303	}	1682	}
1304		1683
1305	sub unlink_save {	1684	sub unlink_save {
1306	my ($self) = @_;	1685	my ($self) = @_;
1307		1686
…		…
1365	$self->load_header_orig	1744	$self->load_header_orig
1366	or return;	1745	or return;
1367	$self->prepare_orig;	1746	$self->prepare_orig;
1368	}	1747	}
1369		1748
		1749	$self->{deny_reset} = 1
		1750	if $self->no_reset;
		1751
		1752	$self->default_region (cf::region::find_by_path $self->{path})
		1753	unless $self->default_region;
		1754
1370	1	1755	1
1371	}	1756	}
1372		1757
1373	sub find;	1758	sub find;
1374	sub find {	1759	sub find {
…		…
1386	$map->{last_save} = $cf::RUNTIME;	1771	$map->{last_save} = $cf::RUNTIME;
1387		1772
1388	$map->load_header	1773	$map->load_header
1389	or return;	1774	or return;
1390		1775
1391	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1776	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1392	# doing this can freeze the server in a sync job, obviously	1777	# doing this can freeze the server in a sync job, obviously
1393	#$cf::WAIT_FOR_TICK->wait;	1778	#$cf::WAIT_FOR_TICK->wait;
1394	$map->reset;	1779	$map->reset;
1395	undef $guard;	1780	undef $guard;
1396	return find $path;	1781	return find $path;
…		…
1407	my ($self) = @_;	1792	my ($self) = @_;
1408		1793
1409	local $self->{deny_reset} = 1; # loading can take a long time	1794	local $self->{deny_reset} = 1; # loading can take a long time
1410		1795
1411	my $path = $self->{path};	1796	my $path = $self->{path};
		1797
		1798	{
1412	my $guard = cf::lock_acquire "map_load:$path";	1799	my $guard = cf::lock_acquire "map_load:$path";
1413		1800
1414	return if $self->in_memory != cf::MAP_SWAPPED;	1801	return if $self->in_memory != cf::MAP_SWAPPED;
1415		1802
1416	$self->in_memory (cf::MAP_LOADING);	1803	$self->in_memory (cf::MAP_LOADING);
1417		1804
1418	$self->alloc;	1805	$self->alloc;
1419		1806
1420	$self->pre_load;	1807	$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;	1808	Coro::cede;
1446	$self->set_darkness_map;	1809
		1810	$self->_load_objects ($self->{load_path}, 1)
		1811	or return;
		1812
		1813	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1814	if delete $self->{load_original};
		1815
		1816	if (my $uniq = $self->uniq_path) {
		1817	utf8::encode $uniq;
		1818	if (aio_open $uniq, O_RDONLY, 0) {
		1819	$self->clear_unique_items;
		1820	$self->_load_objects ($uniq, 0);
		1821	}
		1822	}
		1823
		1824	Coro::cede;
		1825	# now do the right thing for maps
		1826	$self->link_multipart_objects;
1447	$self->difficulty ($self->estimate_difficulty)	1827	$self->difficulty ($self->estimate_difficulty)
1448	unless $self->difficulty;	1828	unless $self->difficulty;
1449	Coro::cede;	1829	Coro::cede;
		1830
		1831	unless ($self->{deny_activate}) {
		1832	$self->decay_objects;
		1833	$self->fix_auto_apply;
		1834	$self->update_buttons;
		1835	Coro::cede;
		1836	$self->set_darkness_map;
		1837	Coro::cede;
1450	$self->activate;	1838	$self->activate;
		1839	}
		1840
		1841	$self->in_memory (cf::MAP_IN_MEMORY);
1451	}	1842	}
1452		1843
1453	$self->post_load;	1844	$self->post_load;
1454
1455	$self->in_memory (cf::MAP_IN_MEMORY);
1456	}	1845	}
1457		1846
1458	sub customise_for {	1847	sub customise_for {
1459	my ($self, $ob) = @_;	1848	my ($self, $ob) = @_;
1460		1849
1461	return find "~" . $ob->name . "/" . $self->{path}	1850	return find "~" . $ob->name . "/" . $self->{path}
1462	if $self->per_player;	1851	if $self->per_player;
		1852
		1853	# return find "?party/" . $ob->name . "/" . $self->{path}
		1854	# if $self->per_party;
1463		1855
1464	$self	1856	$self
1465	}	1857	}
1466		1858
1467	# find and load all maps in the 3x3 area around a map	1859	# find and load all maps in the 3x3 area around a map
…		…
1578		1970
1579	sub reset_at {	1971	sub reset_at {
1580	my ($self) = @_;	1972	my ($self) = @_;
1581		1973
1582	# TODO: safety, remove and allow resettable per-player maps	1974	# 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};	1975	return 1e99 if $self->{deny_reset};
1585		1976
1586	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1977	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1587	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1978	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1588		1979
…		…
1599	my ($self) = @_;	1990	my ($self) = @_;
1600		1991
1601	my $lock = cf::lock_acquire "map_data:$self->{path}";	1992	my $lock = cf::lock_acquire "map_data:$self->{path}";
1602		1993
1603	return if $self->players;	1994	return if $self->players;
1604	return if $self->isa ("ext::map_per_player");#d#
1605		1995
1606	warn "resetting map ", $self->path;#d#	1996	warn "resetting map ", $self->path;
1607		1997
1608	$self->in_memory (cf::MAP_SWAPPED);	1998	$self->in_memory (cf::MAP_SWAPPED);
1609		1999
1610	# need to save uniques path	2000	# need to save uniques path
1611	unless ($self->{deny_save}) {	2001	unless ($self->{deny_save}) {
…		…
1643	$cf::MAP{$self->path} = $self;	2033	$cf::MAP{$self->path} = $self;
1644		2034
1645	$self->reset; # polite request, might not happen	2035	$self->reset; # polite request, might not happen
1646	}	2036	}
1647		2037
		2038	=item $maps = cf::map::tmp_maps
		2039
		2040	Returns an arrayref with all map paths of currently instantiated and saved
		2041	maps. May block.
		2042
		2043	=cut
		2044
		2045	sub tmp_maps() {
		2046	[
		2047	map {
		2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise $_
		2051	: ()
		2052	} @{ aio_readdir $TMPDIR or [] }
		2053	]
		2054	}
		2055
		2056	=item $maps = cf::map::random_maps
		2057
		2058	Returns an arrayref with all map paths of currently instantiated and saved
		2059	random maps. May block.
		2060
		2061	=cut
		2062
		2063	sub random_maps() {
		2064	[
		2065	map {
		2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise "?random/$_"
		2069	: ()
		2070	} @{ aio_readdir $RANDOMDIR or [] }
		2071	]
		2072	}
		2073
1648	=item cf::map::unique_maps	2074	=item cf::map::unique_maps
1649		2075
1650	Returns an arrayref of paths of all shared maps that have	2076	Returns an arrayref of paths of all shared maps that have
1651	instantiated unique items. May block.	2077	instantiated unique items. May block.
1652		2078
1653	=cut	2079	=cut
1654		2080
1655	sub unique_maps() {	2081	sub unique_maps() {
1656	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2082	[
1657	or return;	2083	map {
1658
1659	my @paths;
1660
1661	for (@$files) {
1662	utf8::decode $_;	2084	utf8::decode $_;
1663	next if /\.pst$/;	2085	/\.map$/
1664	next unless /^$PATH_SEP/o;	2086	? normalise $_
1665		2087	: ()
1666	push @paths, cf::map::normalise $_;	2088	} @{ aio_readdir $UNIQUEDIR or [] }
1667	}	2089	]
1668
1669	\@paths
1670	}	2090	}
1671		2091
1672	package cf;	2092	package cf;
1673		2093
1674	=back	2094	=back
…		…
1720		2140
1721	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2141	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1722		2142
1723	if ($self->{record_replies}) {	2143	if ($self->{record_replies}) {
1724	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2144	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2145
1725	} else {	2146	} else {
		2147	my $pl = $self->contr;
		2148
		2149	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2150	my $diag = $pl->{npc_dialog};
		2151	$diag->{pl}->ext_reply (
		2152	$diag->{id},
		2153	msgtype => "reply",
		2154	msg => $diag->{pl}->expand_cfpod ($msg),
		2155	add_topics => []
		2156	);
		2157
		2158	} else {
1726	$msg = $npc->name . " says: $msg" if $npc;	2159	$msg = $npc->name . " says: $msg" if $npc;
1727	$self->message ($msg, $flags);	2160	$self->message ($msg, $flags);
		2161	}
1728	}	2162	}
1729	}	2163	}
1730		2164
1731	=item $player_object->may ("access")	2165	=item $player_object->may ("access")
1732		2166
…		…
1780	$self->deactivate_recursive;	2214	$self->deactivate_recursive;
1781		2215
1782	return if UNIVERSAL::isa $self->map, "ext::map_link";	2216	return if UNIVERSAL::isa $self->map, "ext::map_link";
1783		2217
1784	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2218	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1785	if $self->map;	2219	if $self->map && $self->map->{path} ne "{link}";
1786		2220
1787	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2221	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1788	}	2222	}
1789		2223
1790	sub cf::object::player::leave_link {	2224	sub cf::object::player::leave_link {
1791	my ($self, $map, $x, $y) = @_;	2225	my ($self, $map, $x, $y) = @_;
		2226
		2227	return unless $self->contr->active;
1792		2228
1793	my $link_pos = delete $self->{_link_pos};	2229	my $link_pos = delete $self->{_link_pos};
1794		2230
1795	unless ($map) {	2231	unless ($map) {
1796	# restore original map position	2232	# restore original map position
…		…
1819		2255
1820	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2256	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1821	$self->enter_map ($map, $x, $y);	2257	$self->enter_map ($map, $x, $y);
1822	}	2258	}
1823		2259
1824	cf::player->attach (
1825	on_logout => sub {
1826	my ($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)	2260	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1857		2261
		2262	Moves the player to the given map-path and coordinates by first freezing
		2263	her, loading and preparing them map, calling the provided $check callback
		2264	that has to return the map if sucecssful, and then unfreezes the player on
		2265	the new (success) or old (failed) map position.
		2266
1858	=cut	2267	=cut
		2268
		2269	our $GOTOGEN;
1859		2270
1860	sub cf::object::player::goto {	2271	sub cf::object::player::goto {
1861	my ($self, $path, $x, $y) = @_;	2272	my ($self, $path, $x, $y, $check) = @_;
		2273
		2274	# do generation counting so two concurrent goto's will be executed in-order
		2275	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1862		2276
1863	$self->enter_link;	2277	$self->enter_link;
1864		2278
1865	(async {	2279	(async {
1866	my $map = eval {	2280	my $map = eval {
1867	my $map = cf::map::find $path;	2281	my $map = cf::map::find $path;
		2282
		2283	if ($map) {
1868	$map = $map->customise_for ($self) if $map;	2284	$map = $map->customise_for ($self);
		2285	$map = $check->($map) if $check && $map;
		2286	} else {
		2287	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2288	}
		2289
1869	$map	2290	$map
		2291	};
		2292
		2293	if ($@) {
		2294	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2295	LOG llevError | logBacktrace, Carp::longmess $@;
1870	} or	2296	}
1871	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1872		2297
		2298	if ($gen == $self->{_goto_generation}) {
		2299	delete $self->{_goto_generation};
1873	$self->leave_link ($map, $x, $y);	2300	$self->leave_link ($map, $x, $y);
		2301	}
1874	})->prio (1);	2302	})->prio (1);
1875	}	2303	}
1876		2304
1877	=item $player_object->enter_exit ($exit_object)	2305	=item $player_object->enter_exit ($exit_object)
1878		2306
…		…
1917		2345
1918	$rmp->{random_seed} ||= $exit->random_seed;	2346	$rmp->{random_seed} ||= $exit->random_seed;
1919		2347
1920	my $data = cf::to_json $rmp;	2348	my $data = cf::to_json $rmp;
1921	my $md5 = Digest::MD5::md5_hex $data;	2349	my $md5 = Digest::MD5::md5_hex $data;
1922	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2350	my $meta = "$RANDOMDIR/$md5.meta";
1923		2351
1924	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2352	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1925	aio_write $fh, 0, (length $data), $data, 0;	2353	aio_write $fh, 0, (length $data), $data, 0;
1926	undef $fh;	2354	undef $fh;
1927	aio_rename "$meta~", $meta;	2355	aio_rename "$meta~", $meta;
…		…
1936		2364
1937	return unless $self->type == cf::PLAYER;	2365	return unless $self->type == cf::PLAYER;
1938		2366
1939	if ($exit->slaying eq "/!") {	2367	if ($exit->slaying eq "/!") {
1940	#TODO: this should de-fi-ni-te-ly not be a sync-job	2368	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2369	# the problem is that $exit might not survive long enough
		2370	# so it needs to be done right now, right here
1941	cf::sync_job { prepare_random_map $exit };	2371	cf::sync_job { prepare_random_map $exit };
1942	}	2372	}
1943		2373
1944	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2374	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1945	my $hp = $exit->stats->hp;	2375	my $hp = $exit->stats->hp;
1946	my $sp = $exit->stats->sp;	2376	my $sp = $exit->stats->sp;
1947		2377
1948	$self->enter_link;	2378	$self->enter_link;
		2379
		2380	# if exit is damned, update players death & WoR home-position
		2381	$self->contr->savebed ($slaying, $hp, $sp)
		2382	if $exit->flag (FLAG_DAMNED);
1949		2383
1950	(async {	2384	(async {
1951	$self->deactivate_recursive; # just to be sure	2385	$self->deactivate_recursive; # just to be sure
1952	unless (eval {	2386	unless (eval {
1953	$self->goto ($slaying, $hp, $sp);	2387	$self->goto ($slaying, $hp, $sp);
1954		2388
1955	1;	2389	1;
1956	}) {	2390	}) {
1957	$self->message ("Something went wrong deep within the crossfire server. "	2391	$self->message ("Something went wrong deep within the crossfire server. "
1958	. "I'll try to bring you back to the map you were before. "	2392	. "I'll try to bring you back to the map you were before. "
1959	. "Please report this to the dungeon master!",	2393	. "Please report this to the dungeon master!",
1960	cf::NDI_UNIQUE | cf::NDI_RED);	2394	cf::NDI_UNIQUE | cf::NDI_RED);
1961		2395
1962	warn "ERROR in enter_exit: $@";	2396	warn "ERROR in enter_exit: $@";
1963	$self->leave_link;	2397	$self->leave_link;
1964	}	2398	}
1965	})->prio (1);	2399	})->prio (1);
…		…
1978		2412
1979	sub cf::client::send_drawinfo {	2413	sub cf::client::send_drawinfo {
1980	my ($self, $text, $flags) = @_;	2414	my ($self, $text, $flags) = @_;
1981		2415
1982	utf8::encode $text;	2416	utf8::encode $text;
1983	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2417	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1984	}	2418	}
1985		2419
		2420	=item $client->send_msg ($color, $type, $msg, [extra...])
		2421
		2422	Send a drawinfo or msg packet to the client, formatting the msg for the
		2423	client if neccessary. C<$type> should be a string identifying the type of
		2424	the message, with C<log> being the default. If C<$color> is negative, suppress
		2425	the message unless the client supports the msg packet.
		2426
		2427	=cut
		2428
		2429	sub cf::client::send_msg {
		2430	my ($self, $color, $type, $msg, @extra) = @_;
		2431
		2432	$msg = $self->pl->expand_cfpod ($msg);
		2433
		2434	return unless @extra || length $msg;
		2435
		2436	if ($self->can_msg) {
		2437	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2438	} else {
		2439	# replace some tags by gcfclient-compatible ones
		2440	for ($msg) {
		2441	1 while
		2442	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2443	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2444	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2445	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2446	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2447	}
		2448
		2449	if ($color >= 0) {
		2450	if (0 && $msg =~ /\[/) {
		2451	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2452	} else {
		2453	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2454	$self->send_packet ("drawinfo $color $msg")
		2455	}
		2456	}
		2457	}
		2458	}
		2459
		2460	=item $client->ext_event ($type, %msg)
		2461
		2462	Sends an ext event to the client.
		2463
		2464	=cut
		2465
		2466	sub cf::client::ext_event($$%) {
		2467	my ($self, $type, %msg) = @_;
		2468
		2469	$msg{msgtype} = "event_$type";
		2470	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2471	}
1986		2472
1987	=item $success = $client->query ($flags, "text", \&cb)	2473	=item $success = $client->query ($flags, "text", \&cb)
1988		2474
1989	Queues a query to the client, calling the given callback with	2475	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>,	2476	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>.	2477	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1992		2478
1993	Queries can fail, so check the return code. Or don't, as queries will become	2479	Queries can fail, so check the return code. Or don't, as queries will
1994	reliable at some point in the future.	2480	become reliable at some point in the future.
1995		2481
1996	=cut	2482	=cut
1997		2483
1998	sub cf::client::query {	2484	sub cf::client::query {
1999	my ($self, $flags, $text, $cb) = @_;	2485	my ($self, $flags, $text, $cb) = @_;
…		…
2007	utf8::encode $text;	2493	utf8::encode $text;
2008	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2494	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2009		2495
2010	$self->send_packet ($self->{query_queue}[0][0])	2496	$self->send_packet ($self->{query_queue}[0][0])
2011	if @{ $self->{query_queue} } == 1;	2497	if @{ $self->{query_queue} } == 1;
		2498
		2499	1
2012	}	2500	}
2013		2501
2014	cf::client->attach (	2502	cf::client->attach (
		2503	on_connect => sub {
		2504	my ($ns) = @_;
		2505
		2506	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2507	},
2015	on_reply => sub {	2508	on_reply => sub {
2016	my ($ns, $msg) = @_;	2509	my ($ns, $msg) = @_;
2017		2510
2018	# this weird shuffling is so that direct followup queries	2511	# this weird shuffling is so that direct followup queries
2019	# get handled first	2512	# get handled first
…		…
2031	} else {	2524	} else {
2032	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2525	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2033	}	2526	}
2034	}	2527	}
2035	},	2528	},
		2529	on_exticmd => sub {
		2530	my ($ns, $buf) = @_;
		2531
		2532	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2533
		2534	if (ref $msg) {
		2535	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2536	if (my %reply = $cb->($ns, $msg)) {
		2537	$reply{msgid} = $msg->{msgid};
		2538	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2539	}
		2540	}
		2541	} else {
		2542	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2543	}
		2544
		2545	cf::override;
		2546	},
2036	);	2547	);
2037		2548
2038	=item $client->async (\&cb)	2549	=item $client->async (\&cb)
2039		2550
2040	Create a new coroutine, running the specified callback. The coroutine will	2551	Create a new coroutine, running the specified callback. The coroutine will
…		…
2087		2598
2088	# here we export the classes and methods available to script code	2599	# here we export the classes and methods available to script code
2089		2600
2090	=pod	2601	=pod
2091		2602
2092	The following fucntions and emthods are available within a safe environment:	2603	The following functions and methods are available within a safe environment:
2093		2604
2094	cf::object contr pay_amount pay_player map	2605	cf::object
		2606	contr pay_amount pay_player map x y force_find force_add
		2607	insert remove
		2608
2095	cf::object::player player	2609	cf::object::player
2096	cf::player peaceful	2610	player
2097	cf::map trigger	2611
		2612	cf::player
		2613	peaceful
		2614
		2615	cf::map
		2616	trigger
2098		2617
2099	=cut	2618	=cut
2100		2619
2101	for (	2620	for (
2102	["cf::object" => qw(contr pay_amount pay_player map)],	2621	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2622	insert remove)],
2103	["cf::object::player" => qw(player)],	2623	["cf::object::player" => qw(player)],
2104	["cf::player" => qw(peaceful)],	2624	["cf::player" => qw(peaceful)],
2105	["cf::map" => qw(trigger)],	2625	["cf::map" => qw(trigger)],
2106	) {	2626	) {
2107	no strict 'refs';	2627	no strict 'refs';
…		…
2178	=back	2698	=back
2179		2699
2180	=cut	2700	=cut
2181		2701
2182	#############################################################################	2702	#############################################################################
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	2703	# the server's init and main functions
2256		2704
2257	sub init_resources {	2705	sub load_facedata($) {
2258	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2706	my ($path) = @_;
		2707
		2708	warn "loading facedata from $path\n";
		2709
		2710	my $facedata;
		2711	0 < aio_load $path, $facedata
		2712	or die "$path: $!";
		2713
		2714	$facedata = Coro::Storable::thaw $facedata;
		2715
		2716	$facedata->{version} == 2
		2717	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2718
		2719	{
		2720	my $faces = $facedata->{faceinfo};
		2721
		2722	while (my ($face, $info) = each %$faces) {
		2723	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2724	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2725	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2726	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2727	Coro::cede;
		2728	}
		2729
		2730	while (my ($face, $info) = each %$faces) {
		2731	next unless $info->{smooth};
		2732	my $idx = cf::face::find $face
		2733	or next;
		2734	if (my $smooth = cf::face::find $info->{smooth}) {
		2735	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2736	} else {
		2737	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2738	}
		2739	Coro::cede;
		2740	}
		2741	}
		2742
		2743	{
		2744	my $anims = $facedata->{animinfo};
		2745
		2746	while (my ($anim, $info) = each %$anims) {
		2747	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2748	Coro::cede;
		2749	}
		2750
		2751	cf::anim::invalidate_all; # d'oh
		2752	}
		2753
		2754	1
		2755	}
		2756
		2757	sub reload_regions {
		2758	load_resource_file "$MAPDIR/regions"
2259	or die "unable to load regions file\n";#d#	2759	or die "unable to load regions file\n";
		2760	}
		2761
		2762	sub reload_facedata {
		2763	load_facedata "$DATADIR/facedata"
		2764	or die "unable to load facedata\n";
		2765	}
		2766
		2767	sub reload_archetypes {
		2768	load_resource_file "$DATADIR/archetypes"
		2769	or die "unable to load archetypes\n";
		2770	#d# NEED to laod twice to resolve forward references
		2771	# this really needs to be done in an extra post-pass
		2772	# (which needs to be synchronous, so solve it differently)
		2773	load_resource_file "$DATADIR/archetypes"
		2774	or die "unable to load archetypes\n";
		2775	}
		2776
		2777	sub reload_treasures {
		2778	load_resource_file "$DATADIR/treasures"
		2779	or die "unable to load treasurelists\n";
		2780	}
		2781
		2782	sub reload_resources {
		2783	warn "reloading resource files...\n";
		2784
		2785	reload_regions;
		2786	reload_facedata;
		2787	#reload_archetypes;#d#
		2788	reload_archetypes;
		2789	reload_treasures;
		2790
		2791	warn "finished reloading resource files\n";
		2792	}
		2793
		2794	sub init {
		2795	reload_resources;
2260	}	2796	}
2261		2797
2262	sub cfg_load {	2798	sub cfg_load {
2263	open my $fh, "<:utf8", cf::confdir . "/config"	2799	open my $fh, "<:utf8", "$CONFDIR/config"
2264	or return;	2800	or return;
2265		2801
2266	local $/;	2802	local $/;
2267	*CFG = YAML::Syck::Load <$fh>;	2803	*CFG = YAML::Syck::Load <$fh>;
2268		2804
…		…
2276	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2812	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2277	and die "WARNING: m(un)lockall failed: $!\n";	2813	and die "WARNING: m(un)lockall failed: $!\n";
2278	};	2814	};
2279	warn $@ if $@;	2815	warn $@ if $@;
2280	}	2816	}
2281	}
2282
2283	sub init {
2284	init_resources;
2285	}	2817	}
2286		2818
2287	sub main {	2819	sub main {
2288	# we must not ever block the main coroutine	2820	# we must not ever block the main coroutine
2289	local $Coro::idle = sub {	2821	local $Coro::idle = sub {
…		…
2317	},	2849	},
2318	);	2850	);
2319	}	2851	}
2320	}	2852	}
2321		2853
		2854	sub write_runtime {
		2855	my $runtime = "$LOCALDIR/runtime";
		2856
		2857	# first touch the runtime file to show we are still running:
		2858	# the fsync below can take a very very long time.
		2859
		2860	IO::AIO::aio_utime $runtime, undef, undef;
		2861
		2862	my $guard = cf::lock_acquire "write_runtime";
		2863
		2864	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2865	or return;
		2866
		2867	my $value = $cf::RUNTIME + 90 + 10;
		2868	# 10 is the runtime save interval, for a monotonic clock
		2869	# 60 allows for the watchdog to kill the server.
		2870
		2871	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2872	and return;
		2873
		2874	# always fsync - this file is important
		2875	aio_fsync $fh
		2876	and return;
		2877
		2878	# touch it again to show we are up-to-date
		2879	aio_utime $fh, undef, undef;
		2880
		2881	close $fh
		2882	or return;
		2883
		2884	aio_rename "$runtime~", $runtime
		2885	and return;
		2886
		2887	warn "runtime file written.\n";
		2888
		2889	1
		2890	}
		2891
2322	sub emergency_save() {	2892	sub emergency_save() {
2323	my $freeze_guard = cf::freeze_mainloop;	2893	my $freeze_guard = cf::freeze_mainloop;
2324		2894
2325	warn "enter emergency perl save\n";	2895	warn "enter emergency perl save\n";
2326		2896
…		…
2357		2927
2358	warn Carp::longmess "post_cleanup backtrace"	2928	warn Carp::longmess "post_cleanup backtrace"
2359	if $make_core;	2929	if $make_core;
2360	}	2930	}
2361		2931
2362	sub reload() {	2932	sub do_reload_perl() {
2363	# can/must only be called in main	2933	# can/must only be called in main
2364	if ($Coro::current != $Coro::main) {	2934	if ($Coro::current != $Coro::main) {
2365	warn "can only reload from main coroutine";	2935	warn "can only reload from main coroutine";
2366	return;	2936	return;
2367	}	2937	}
…		…
2392	Coro::cede;	2962	Coro::cede;
2393	last unless IO::AIO::nreqs || BDB::nreqs;	2963	last unless IO::AIO::nreqs || BDB::nreqs;
2394	warn "iterate...";	2964	warn "iterate...";
2395	}	2965	}
2396		2966
		2967	++$RELOAD;
		2968
2397	warn "cancelling all extension coros";	2969	warn "cancelling all extension coros";
2398	$_->cancel for values %EXT_CORO;	2970	$_->cancel for values %EXT_CORO;
2399	%EXT_CORO = ();	2971	%EXT_CORO = ();
2400		2972
2401	warn "removing commands";	2973	warn "removing commands";
2402	%COMMAND = ();	2974	%COMMAND = ();
2403		2975
2404	warn "removing ext commands";	2976	warn "removing ext/exti commands";
2405	%EXTCMD = ();	2977	%EXTCMD = ();
		2978	%EXTICMD = ();
2406		2979
2407	warn "unloading/nuking all extensions";	2980	warn "unloading/nuking all extensions";
2408	for my $pkg (@EXTS) {	2981	for my $pkg (@EXTS) {
2409	warn "... unloading $pkg";	2982	warn "... unloading $pkg";
2410		2983
…		…
2440	Symbol::delete_package "safe::$_"	3013	Symbol::delete_package "safe::$_"
2441	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3014	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2442		3015
2443	warn "unloading cf.pm \"a bit\"";	3016	warn "unloading cf.pm \"a bit\"";
2444	delete $INC{"cf.pm"};	3017	delete $INC{"cf.pm"};
		3018	delete $INC{"cf/pod.pm"};
2445		3019
2446	# don't, removes xs symbols, too,	3020	# don't, removes xs symbols, too,
2447	# and global variables created in xs	3021	# and global variables created in xs
2448	#Symbol::delete_package __PACKAGE__;	3022	#Symbol::delete_package __PACKAGE__;
2449		3023
…		…
2458		3032
2459	warn "loading extensions";	3033	warn "loading extensions";
2460	cf::load_extensions;	3034	cf::load_extensions;
2461		3035
2462	warn "reattaching attachments to objects/players";	3036	warn "reattaching attachments to objects/players";
2463	_global_reattach;	3037	_global_reattach; # objects, sockets
2464	warn "reattaching attachments to maps";	3038	warn "reattaching attachments to maps";
2465	reattach $_ for values %MAP;	3039	reattach $_ for values %MAP;
2466		3040	warn "reattaching attachments to players";
2467	warn "loading reloadable resources";	3041	reattach $_ for values %PLAYER;
2468	init_resources;
2469		3042
2470	warn "leaving sync_job";	3043	warn "leaving sync_job";
2471		3044
2472	1	3045	1
2473	} or do {	3046	} or do {
…		…
2479	warn "reloaded";	3052	warn "reloaded";
2480	};	3053	};
2481		3054
2482	our $RELOAD_WATCHER; # used only during reload	3055	our $RELOAD_WATCHER; # used only during reload
2483		3056
		3057	sub reload_perl() {
		3058	# doing reload synchronously and two reloads happen back-to-back,
		3059	# coro crashes during coro_state_free->destroy here.
		3060
		3061	$RELOAD_WATCHER ||= Event->timer (
		3062	reentrant => 0,
		3063	after => 0,
		3064	data => WF_AUTOCANCEL,
		3065	cb => sub {
		3066	do_reload_perl;
		3067	undef $RELOAD_WATCHER;
		3068	},
		3069	);
		3070	}
		3071
2484	register_command "reload" => sub {	3072	register_command "reload" => sub {
2485	my ($who, $arg) = @_;	3073	my ($who, $arg) = @_;
2486		3074
2487	if ($who->flag (FLAG_WIZ)) {	3075	if ($who->flag (FLAG_WIZ)) {
2488	$who->message ("reloading server.");	3076	$who->message ("reloading server.");
2489		3077	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	}	3078	}
2503	};	3079	};
2504		3080
2505	unshift @INC, $LIBDIR;	3081	unshift @INC, $LIBDIR;
2506		3082
2507	my $bug_warning = 0;	3083	my $bug_warning = 0;
2508		3084
		3085	our @WAIT_FOR_TICK;
		3086	our @WAIT_FOR_TICK_BEGIN;
		3087
		3088	sub wait_for_tick {
		3089	return unless $TICK_WATCHER->is_active;
		3090	return if $Coro::current == $Coro::main;
		3091
		3092	my $signal = new Coro::Signal;
		3093	push @WAIT_FOR_TICK, $signal;
		3094	$signal->wait;
		3095	}
		3096
		3097	sub wait_for_tick_begin {
		3098	return unless $TICK_WATCHER->is_active;
		3099	return if $Coro::current == $Coro::main;
		3100
		3101	my $signal = new Coro::Signal;
		3102	push @WAIT_FOR_TICK_BEGIN, $signal;
		3103	$signal->wait;
		3104	}
		3105
		3106	my $min = 1e6;#d#
		3107	my $avg = 10;
2509	$TICK_WATCHER = Event->timer (	3108	$TICK_WATCHER = Event->timer (
2510	reentrant => 0,	3109	reentrant => 0,
2511	parked => 1,	3110	parked => 1,
2512	prio => 0,	3111	prio => 0,
2513	at => $NEXT_TICK || $TICK,	3112	at => $NEXT_TICK || $TICK,
…		…
2517	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3116	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2518	unless ++$bug_warning > 10;	3117	unless ++$bug_warning > 10;
2519	return;	3118	return;
2520	}	3119	}
2521		3120
2522	$NOW = Event::time;	3121	$NOW = $tick_start = Event::time;
2523		3122
2524	cf::server_tick; # one server iteration	3123	cf::server_tick; # one server iteration
		3124
		3125	0 && sync_job {#d#
		3126	for(1..10) {
		3127	my $t = Event::time;
		3128	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3129	or die;
		3130
		3131	$map->width (50);
		3132	$map->height (50);
		3133	$map->alloc;
		3134	$map->_load_objects ("/tmp/x.map", 1);
		3135	my $t = Event::time - $t;
		3136
		3137	#next unless $t < 0.0013;#d#
		3138	if ($t < $min) {
		3139	$min = $t;
		3140	}
		3141	$avg = $avg * 0.99 + $t * 0.01;
		3142	}
		3143	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3144	exit 0;
		3145	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3146	};
		3147
2525	$RUNTIME += $TICK;	3148	$RUNTIME += $TICK;
2526	$NEXT_TICK += $TICK;	3149	$NEXT_TICK += $TICK;
2527		3150
2528	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3151	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2529	$NEXT_RUNTIME_WRITE = $NOW + 10;	3152	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2531	write_runtime	3154	write_runtime
2532	or warn "ERROR: unable to write runtime file: $!";	3155	or warn "ERROR: unable to write runtime file: $!";
2533	};	3156	};
2534	}	3157	}
2535		3158
2536	$WAIT_FOR_TICK->broadcast;
2537	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2538
2539	# my $AFTER = Event::time;	3159	# my $AFTER = Event::time;
2540	# warn $AFTER - $NOW;#d#	3160	# warn $AFTER - $NOW;#d#
2541		3161
		3162	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3163	$sig->send;
		3164	}
		3165	while (my $sig = shift @WAIT_FOR_TICK) {
		3166	$sig->send;
		3167	}
		3168
		3169	$NOW = Event::time;
		3170
2542	# if we are delayed by four ticks or more, skip them all	3171	# if we are delayed by four ticks or more, skip them all
2543	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3172	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2544		3173
2545	$TICK_WATCHER->at ($NEXT_TICK);	3174	$TICK_WATCHER->at ($NEXT_TICK);
2546	$TICK_WATCHER->start;	3175	$TICK_WATCHER->start;
		3176
		3177	$LOAD = ($NOW - $tick_start) / $TICK;
		3178	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3179
		3180	_post_tick;
		3181
		3182
2547	},	3183	},
2548	);	3184	);
2549		3185
2550	{	3186	{
2551	BDB::max_poll_time $TICK * 0.1;	3187	BDB::max_poll_time $TICK * 0.1;
…		…
2579		3215
2580	cf::sync_job {	3216	cf::sync_job {
2581	eval {	3217	eval {
2582	BDB::db_env_open	3218	BDB::db_env_open
2583	$DB_ENV,	3219	$DB_ENV,
2584	$BDB_ENV_DIR,	3220	$BDBDIR,
2585	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3221	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2586	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3222	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2587	0666;	3223	0666;
2588		3224
2589	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3225	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2590		3226
2591	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3227	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2592	$DB_ENV->set_lk_detect;	3228	$DB_ENV->set_lk_detect;
2593	};	3229	};
2594		3230
…		…
2610	prio => 6,	3246	prio => 6,
2611	cb => \&IO::AIO::poll_cb,	3247	cb => \&IO::AIO::poll_cb,
2612	);	3248	);
2613	}	3249	}
2614		3250
		3251	my $_log_backtrace;
		3252
		3253	sub _log_backtrace {
		3254	my ($msg, @addr) = @_;
		3255
		3256	$msg =~ s/\n//;
		3257
		3258	# limit the # of concurrent backtraces
		3259	if ($_log_backtrace < 2) {
		3260	++$_log_backtrace;
		3261	async {
		3262	my @bt = fork_call {
		3263	@addr = map { sprintf "%x", $_ } @addr;
		3264	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3265	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3266	or die "addr2line: $!";
		3267
		3268	my @funcs;
		3269	my @res = <$fh>;
		3270	chomp for @res;
		3271	while (@res) {
		3272	my ($func, $line) = splice @res, 0, 2, ();
		3273	push @funcs, "[$func] $line";
		3274	}
		3275
		3276	@funcs
		3277	};
		3278
		3279	LOG llevInfo, "[ABT] $msg\n";
		3280	LOG llevInfo, "[ABT] $_\n" for @bt;
		3281	--$_log_backtrace;
		3282	};
		3283	} else {
		3284	LOG llevInfo, "[ABT] $msg\n";
		3285	LOG llevInfo, "[ABT] [suppressed]\n";
		3286	}
		3287	}
		3288
		3289	# load additional modules
		3290	use cf::pod;
		3291
2615	END { cf::emergency_save }	3292	END { cf::emergency_save }
2616		3293
2617	1	3294	1
2618		3295

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