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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.107 by root, Sun Dec 31 18:10:40 2006 UTC vs.
Revision 1.427 by root, Sat Apr 26 12:25:45 2008 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
3	use utf8;	24	use utf8;
4	use strict;	25	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV 3.2;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
12		35
13	use Coro 3.3;	36	use Coro 4.50 ();
		37	use Coro::State;
		38	use Coro::Handle;
14	use Coro::Event;	39	use Coro::EV;
15	use Coro::Timer;	40	use Coro::Timer;
16	use Coro::Signal;	41	use Coro::Signal;
17	use Coro::Semaphore;	42	use Coro::Semaphore;
18	use Coro::AIO;	43	use Coro::AIO;
		44	use Coro::BDB;
		45	use Coro::Storable;
		46	use Coro::Util ();
19		47
		48	use JSON::XS 2.01 ();
		49	use BDB ();
		50	use Data::Dumper;
		51	use Digest::MD5;
20	use Fcntl;	52	use Fcntl;
		53	use YAML ();
21	use IO::AIO 2.31 ();	54	use IO::AIO 2.51 ();
22	use YAML::Syck ();
23	use Time::HiRes;	55	use Time::HiRes;
		56	use Compress::LZF;
		57	use Digest::MD5 ();
24		58
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	59	# configure various modules to our taste
		60	#
		61	$Storable::canonical = 1; # reduce rsync transfers
		62	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		63	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
26		64
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
28	$YAML::Syck::ImplicitUnicode = 1;
29
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	65	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
31		66
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	67	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		68
34	our %COMMAND = ();	69	our %COMMAND = ();
35	our %COMMAND_TIME = ();	70	our %COMMAND_TIME = ();
		71
		72	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	73	our %EXTCMD = ();
		74	our %EXTICMD = ();
		75	our %EXT_CORO = (); # coroutines bound to extensions
		76	our %EXT_MAP = (); # pluggable maps
37		77
		78	our $RELOAD; # number of reloads so far
38	our @EVENT;	79	our @EVENT;
39	our $LIBDIR = datadir . "/ext";
40		80
41	our $TICK = MAX_TIME * 1e-6;	81	our $CONFDIR = confdir;
		82	our $DATADIR = datadir;
		83	our $LIBDIR = "$DATADIR/ext";
		84	our $PODDIR = "$DATADIR/pod";
		85	our $MAPDIR = "$DATADIR/" . mapdir;
		86	our $LOCALDIR = localdir;
		87	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		88	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		89	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		90	our $RANDOMDIR = "$LOCALDIR/random";
		91	our $BDBDIR = "$LOCALDIR/db";
		92	our %RESOURCE;
		93
		94	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
42	our $TICK_WATCHER;	95	our $AIO_POLL_WATCHER;
		96	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	97	our $NEXT_TICK;
44	our $NOW;	98	our $USE_FSYNC = 1; # use fsync to write maps - default off
		99
		100	our $BDB_POLL_WATCHER;
		101	our $BDB_DEADLOCK_WATCHER;
		102	our $BDB_CHECKPOINT_WATCHER;
		103	our $BDB_TRICKLE_WATCHER;
		104	our $DB_ENV;
45		105
46	our %CFG;	106	our %CFG;
47		107
48	our $UPTIME; $UPTIME ||= time;	108	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	109	our $RUNTIME;
		110	our $NOW;
50		111
51	our %MAP; # all maps	112	our (%PLAYER, %PLAYER_LOADING); # all users
52	our $LINK_MAP; # the special {link} map	113	our (%MAP, %MAP_LOADING ); # all maps
53	our $FREEZE;	114	our $LINK_MAP; # the special {link} map, which is always available
		115
		116	# used to convert map paths into valid unix filenames by replacing / by ∕
		117	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		118
		119	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		120	our $LOADAVG; # same thing, but with alpha-smoothing
		121	our $JITTER; # average jitter
		122	our $TICK_START; # for load detecting purposes
54		123
55	binmode STDOUT;	124	binmode STDOUT;
56	binmode STDERR;	125	binmode STDERR;
57		126
58	# read virtual server time, if available	127	# read virtual server time, if available
59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	128	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
60	open my $fh, "<", cf::localdir . "/runtime"	129	open my $fh, "<", "$LOCALDIR/runtime"
61	or die "unable to read runtime file: $!";	130	or die "unable to read runtime file: $!";
62	$RUNTIME = <$fh> + 0.;	131	$RUNTIME = <$fh> + 0.;
63	}	132	}
64		133
65	mkdir cf::localdir;	134	mkdir $_
66	mkdir cf::localdir . "/" . cf::playerdir;	135	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
67	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;
69		136
70	our %EXT_CORO;	137	our $EMERGENCY_POSITION;
		138
		139	sub cf::map::normalise;
71		140
72	#############################################################################	141	#############################################################################
73		142
74	=head2 GLOBAL VARIABLES	143	=head2 GLOBAL VARIABLES
75		144
…		…
82	=item $cf::RUNTIME	151	=item $cf::RUNTIME
83		152
84	The time this server has run, starts at 0 and is increased by $cf::TICK on	153	The time this server has run, starts at 0 and is increased by $cf::TICK on
85	every server tick.	154	every server tick.
86		155
87	=item $cf::LIBDIR	156	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		157	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		158	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
88		159
89	The perl library directory, where extensions and cf-specific modules can	160	Various directories - "/etc", read-only install directory, perl-library
90	be found. It will be added to C<@INC> automatically.	161	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		162	unique-items directory, player file directory, random maps directory and
		163	database environment.
91		164
92	=item $cf::NOW	165	=item $cf::NOW
93		166
94	The time of the last (current) server tick.	167	The time of the last (current) server tick.
95		168
96	=item $cf::TICK	169	=item $cf::TICK
97		170
98	The interval between server ticks, in seconds.	171	The interval between server ticks, in seconds.
99		172
		173	=item $cf::LOADAVG
		174
		175	The current CPU load on the server (alpha-smoothed), as a value between 0
		176	(none) and 1 (overloaded), indicating how much time is spent on processing
		177	objects per tick. Healthy values are < 0.5.
		178
		179	=item $cf::LOAD
		180
		181	The raw value load value from the last tick.
		182
100	=item %cf::CFG	183	=item %cf::CFG
101		184
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	185	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
103	from wherever your confdir points to.	186	from wherever your confdir points to.
		187
		188	=item cf::wait_for_tick, cf::wait_for_tick_begin
		189
		190	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		191	returns directly I<after> the tick processing (and consequently, can only wake one process
		192	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		193
		194	=item @cf::INVOKE_RESULTS
		195
		196	This array contains the results of the last C<invoke ()> call. When
		197	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		198	that call.
104		199
105	=back	200	=back
106		201
107	=cut	202	=cut
108		203
109	BEGIN {	204	BEGIN {
110	*CORE::GLOBAL::warn = sub {	205	*CORE::GLOBAL::warn = sub {
111	my $msg = join "", @_;	206	my $msg = join "", @_;
112	utf8::encode $msg;
113		207
114	$msg .= "\n"	208	$msg .= "\n"
115	unless $msg =~ /\n$/;	209	unless $msg =~ /\n$/;
116		210
		211	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		212
117	LOG llevError, "cfperl: $msg";	213	LOG llevError, $msg;
118	};	214	};
119	}	215	}
		216
		217	$Coro::State::DIEHOOK = sub {
		218	return unless $^S eq 0; # "eq", not "=="
		219
		220	if ($Coro::current == $Coro::main) {#d#
		221	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		222	return;#d#
		223	}#d#
		224
		225	# kill coroutine otherwise
		226	warn Carp::longmess $_[0];
		227	Coro::terminate
		228	};
		229
		230	$SIG{__DIE__} = sub { }; #d#?
120		231
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	232	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	233	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
123	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	234	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
124	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	235	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
125	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	236	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		237	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
126	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	238	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
127		239
128	# we bless all objects into (empty) derived classes to force a method lookup	240	# we bless all objects into (empty) derived classes to force a method lookup
129	# within the Safe compartment.	241	# within the Safe compartment.
130	for my $pkg (qw(	242	for my $pkg (qw(
131	cf::global cf::attachable	243	cf::global cf::attachable
…		…
136	)) {	248	)) {
137	no strict 'refs';	249	no strict 'refs';
138	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	250	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
139	}	251	}
140		252
141	$Event::DIED = sub {	253	$EV::DIED = sub {
142	warn "error in event callback: @_";	254	warn "error in event callback: @_";
143	};	255	};
144		256
145	my %ext_pkg;	257	#############################################################################
146	my @exts;
147	my @hook;
148		258
149	=head2 UTILITY FUNCTIONS	259	=head2 UTILITY FUNCTIONS
150		260
151	=over 4	261	=over 4
152		262
153	=cut	263	=item dumpval $ref
154		264
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	265	=cut
156		266
		267	sub dumpval {
		268	eval {
		269	local $SIG{__DIE__};
		270	my $d;
		271	if (1) {
		272	$d = new Data::Dumper([$_[0]], ["*var"]);
		273	$d->Terse(1);
		274	$d->Indent(2);
		275	$d->Quotekeys(0);
		276	$d->Useqq(1);
		277	#$d->Bless(...);
		278	$d->Seen($_[1]) if @_ > 1;
		279	$d = $d->Dump();
		280	}
		281	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		282	$d
		283	} || "[unable to dump $_[0]: '$@']";
		284	}
		285
157	=item $ref = cf::from_json $json	286	=item $ref = cf::decode_json $json
158		287
159	Converts a JSON string into the corresponding perl data structure.	288	Converts a JSON string into the corresponding perl data structure.
160		289
161	=cut
162
163	sub from_json($) {
164	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
165	JSON::Syck::Load $_[0]
166	}
167
168	=item $json = cf::to_json $ref	290	=item $json = cf::encode_json $ref
169		291
170	Converts a perl data structure into its JSON representation.	292	Converts a perl data structure into its JSON representation.
171		293
172	=cut	294	=cut
173		295
174	sub to_json($) {	296	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	297
176	JSON::Syck::Dump $_[0]	298	sub encode_json($) { $json_coder->encode ($_[0]) }
		299	sub decode_json($) { $json_coder->decode ($_[0]) }
		300
		301	=item cf::lock_wait $string
		302
		303	Wait until the given lock is available. See cf::lock_acquire.
		304
		305	=item my $lock = cf::lock_acquire $string
		306
		307	Wait until the given lock is available and then acquires it and returns
		308	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		309	for example when the coroutine gets canceled), the lock is automatically
		310	returned.
		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
		315	Lock names should begin with a unique identifier (for example, cf::map::find
		316	uses map_find and cf::map::load uses map_load).
		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
		321
		322	=cut
		323
		324	our %LOCK;
		325	our %LOCKER;#d#
		326
		327	sub lock_wait($) {
		328	my ($key) = @_;
		329
		330	if ($LOCKER{$key} == $Coro::current) {#d#
		331	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		332	return;#d#
		333	}#d#
		334
		335	# wait for lock, if any
		336	while ($LOCK{$key}) {
		337	push @{ $LOCK{$key} }, $Coro::current;
		338	Coro::schedule;
		339	}
177	}	340	}
		341
		342	sub lock_acquire($) {
		343	my ($key) = @_;
		344
		345	# wait, to be sure we are not locked
		346	lock_wait $key;
		347
		348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
		350
		351	Coro::guard {
		352	delete $LOCKER{$key};#d#
		353	# wake up all waiters, to be on the safe side
		354	$_->ready for @{ delete $LOCK{$key} };
		355	}
		356	}
		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
		364	sub freeze_mainloop {
		365	tick_inhibit_inc;
		366
		367	Coro::guard \&tick_inhibit_dec;
		368	}
		369
		370	=item cf::periodic $interval, $cb
		371
		372	Like EV::periodic, but randomly selects a starting point so that the actions
		373	get spread over timer.
		374
		375	=cut
		376
		377	sub periodic($$) {
		378	my ($interval, $cb) = @_;
		379
		380	my $start = rand List::Util::min 180, $interval;
		381
		382	EV::periodic $start, $interval, 0, $cb
		383	}
		384
		385	=item cf::get_slot $time[, $priority[, $name]]
		386
		387	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		388	This call blocks and returns only when you have at least C<$time> seconds
		389	of cpu time till the next tick. The slot is only valid till the next cede.
		390
		391	The optional C<$name> can be used to identify the job to run. It might be
		392	used for statistical purposes and should identify the same time-class.
		393
		394	Useful for short background jobs.
		395
		396	=cut
		397
		398	our @SLOT_QUEUE;
		399	our $SLOT_QUEUE;
		400
		401	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		402	$SLOT_QUEUE = Coro::async {
		403	$Coro::current->desc ("timeslot manager");
		404
		405	my $signal = new Coro::Signal;
		406
		407	while () {
		408	next_job:
		409	my $avail = cf::till_tick;
		410	if ($avail > 0.01) {
		411	for (0 .. $#SLOT_QUEUE) {
		412	if ($SLOT_QUEUE[$_][0] < $avail) {
		413	my $job = splice @SLOT_QUEUE, $_, 1, ();
		414	$job->[2]->send;
		415	Coro::cede;
		416	goto next_job;
		417	}
		418	}
		419	}
		420
		421	if (@SLOT_QUEUE) {
		422	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		423	push @cf::WAIT_FOR_TICK, $signal;
		424	$signal->wait;
		425	} else {
		426	Coro::schedule;
		427	}
		428	}
		429	};
		430
		431	sub get_slot($;$$) {
		432	return if tick_inhibit || $Coro::current == $Coro::main;
		433
		434	my ($time, $pri, $name) = @_;
		435
		436	$time = $TICK * .6 if $time > $TICK * .6;
		437	my $sig = new Coro::Signal;
		438
		439	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		440	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		441	$SLOT_QUEUE->ready;
		442	$sig->wait;
		443	}
		444
		445	=item cf::async { BLOCK }
		446
		447	Currently the same as Coro::async_pool, meaning you cannot use
		448	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		449	thing you are allowed to do is call C<prio> on it.
		450
		451	=cut
		452
		453	BEGIN { *async = \&Coro::async_pool }
178		454
179	=item cf::sync_job { BLOCK }	455	=item cf::sync_job { BLOCK }
180		456
181	The design of crossfire+ requires that the main coro ($Coro::main) is	457	The design of Deliantra requires that the main coroutine ($Coro::main)
182	always able to handle events or runnable, as crossfire+ is only partly	458	is always able to handle events or runnable, as Deliantra is only
183	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	459	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		460	acceptable.
184		461
185	If it must be done, put the blocking parts into C<sync_job>. This will run	462	If it must be done, put the blocking parts into C<sync_job>. This will run
186	the given BLOCK in another coroutine while waiting for the result. The	463	the given BLOCK in another coroutine while waiting for the result. The
187	server will be frozen during this time, so the block should either finish	464	server will be frozen during this time, so the block should either finish
188	fast or be very important.	465	fast or be very important.
…		…
190	=cut	467	=cut
191		468
192	sub sync_job(&) {	469	sub sync_job(&) {
193	my ($job) = @_;	470	my ($job) = @_;
194		471
195	my $busy = 1;
196	my @res;
197
198	# TODO: use suspend/resume instead
199	local $FREEZE = 1;
200
201	my $coro = Coro::async {
202	@res = eval { $job->() };
203	warn $@ if $@;
204	undef $busy;
205	};
206
207	if ($Coro::current == $Coro::main) {	472	if ($Coro::current == $Coro::main) {
		473	my $time = EV::time;
		474
		475	# this is the main coro, too bad, we have to block
		476	# till the operation succeeds, freezing the server :/
		477
		478	LOG llevError, Carp::longmess "sync job";#d#
		479
		480	my $freeze_guard = freeze_mainloop;
		481
		482	my $busy = 1;
		483	my @res;
		484
		485	(async {
		486	$Coro::current->desc ("sync job coro");
		487	@res = eval { $job->() };
		488	warn $@ if $@;
		489	undef $busy;
208	$coro->prio (Coro::PRIO_MAX);	490	})->prio (Coro::PRIO_MAX);
		491
209	while ($busy) {	492	while ($busy) {
		493	if (Coro::nready) {
210	Coro::cede_notself;	494	Coro::cede_notself;
211	Event::one_event unless Coro::nready;	495	} else {
		496	EV::loop EV::LOOP_ONESHOT;
212	}	497	}
		498	}
		499
		500	my $time = EV::time - $time;
		501
		502	$TICK_START += $time; # do not account sync jobs to server load
		503
		504	wantarray ? @res : $res[0]
213	} else {	505	} else {
214	$coro->join;	506	# we are in another coroutine, how wonderful, everything just works
		507
		508	$job->()
215	}	509	}
216
217	wantarray ? @res : $res[0]
218	}	510	}
219		511
220	=item $coro = cf::coro { BLOCK }	512	=item $coro = cf::async_ext { BLOCK }
221		513
222	Creates and returns a new coro. This coro is automcatially being canceled	514	Like async, but this coro is automatically being canceled when the
223	when the extension calling this is being unloaded.	515	extension calling this is being unloaded.
224		516
225	=cut	517	=cut
226		518
227	sub coro(&) {	519	sub async_ext(&) {
228	my $cb = shift;	520	my $cb = shift;
229		521
230	my $coro; $coro = async {	522	my $coro = &Coro::async ($cb);
231	eval {
232	$cb->();
233	};
234	warn $@ if $@;
235	};
236		523
237	$coro->on_destroy (sub {	524	$coro->on_destroy (sub {
238	delete $EXT_CORO{$coro+0};	525	delete $EXT_CORO{$coro+0};
239	});	526	});
240	$EXT_CORO{$coro+0} = $coro;	527	$EXT_CORO{$coro+0} = $coro;
241		528
242	$coro	529	$coro
243	}	530	}
244		531
		532	=item fork_call { }, $args
		533
		534	Executes the given code block with the given arguments in a seperate
		535	process, returning the results. Everything must be serialisable with
		536	Coro::Storable. May, of course, block. Note that the executed sub may
		537	never block itself or use any form of event handling.
		538
		539	=cut
		540
		541	sub fork_call(&@) {
		542	my ($cb, @args) = @_;
		543
		544	# we seemingly have to make a local copy of the whole thing,
		545	# otherwise perl prematurely frees the stuff :/
		546	# TODO: investigate and fix (likely this will be rather laborious)
		547
		548	my @res = Coro::Util::fork_eval {
		549	reset_signals;
		550	&$cb
		551	}, @args;
		552
		553	wantarray ? @res : $res[-1]
		554	}
		555
		556	=item $coin = coin_from_name $name
		557
		558	=cut
		559
		560	our %coin_alias = (
		561	"silver" => "silvercoin",
		562	"silvercoin" => "silvercoin",
		563	"silvercoins" => "silvercoin",
		564	"gold" => "goldcoin",
		565	"goldcoin" => "goldcoin",
		566	"goldcoins" => "goldcoin",
		567	"platinum" => "platinacoin",
		568	"platinumcoin" => "platinacoin",
		569	"platinumcoins" => "platinacoin",
		570	"platina" => "platinacoin",
		571	"platinacoin" => "platinacoin",
		572	"platinacoins" => "platinacoin",
		573	"royalty" => "royalty",
		574	"royalties" => "royalty",
		575	);
		576
		577	sub coin_from_name($) {
		578	$coin_alias{$_[0]}
		579	? cf::arch::find $coin_alias{$_[0]}
		580	: undef
		581	}
		582
		583	=item $value = cf::db_get $family => $key
		584
		585	Returns a single value from the environment database.
		586
		587	=item cf::db_put $family => $key => $value
		588
		589	Stores the given C<$value> in the family. It can currently store binary
		590	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		591
		592	=item $db = cf::db_table "name"
		593
		594	Create and/or open a new database table. The string must not be "db" and must be unique
		595	within each server.
		596
		597	=cut
		598
		599	sub db_table($) {
		600	my ($name) = @_;
		601	my $db = BDB::db_create $DB_ENV;
		602
		603	eval {
		604	$db->set_flags (BDB::CHKSUM);
		605
		606	utf8::encode $name;
		607	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		608	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		609	cf::cleanup "db_open(db): $!" if $!;
		610	};
		611	cf::cleanup "db_open(db): $@" if $@;
		612
		613	$db
		614	}
		615
		616	our $DB;
		617
		618	sub db_init {
		619	cf::sync_job {
		620	$DB ||= db_table "db";
		621	};
		622	}
		623
		624	sub db_get($$) {
		625	my $key = "$_[0]/$_[1]";
		626
		627	cf::sync_job {
		628	BDB::db_get $DB, undef, $key, my $data;
		629
		630	$! ? ()
		631	: $data
		632	}
		633	}
		634
		635	sub db_put($$$) {
		636	BDB::dbreq_pri 4;
		637	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		638	}
		639
		640	=item cf::cache $id => [$paths...], $processversion => $process
		641
		642	Generic caching function that returns the value of the resource $id,
		643	caching and regenerating as required.
		644
		645	This function can block.
		646
		647	=cut
		648
		649	sub cache {
		650	my ($id, $src, $processversion, $process) = @_;
		651
		652	my $meta =
		653	join "\x00",
		654	$processversion,
		655	map {
		656	aio_stat $_
		657	and Carp::croak "$_: $!";
		658
		659	($_, (stat _)[7,9])
		660	} @$src;
		661
		662	my $dbmeta = db_get cache => "$id/meta";
		663	if ($dbmeta ne $meta) {
		664	# changed, we may need to process
		665
		666	my @data;
		667	my $md5;
		668
		669	for (0 .. $#$src) {
		670	0 <= aio_load $src->[$_], $data[$_]
		671	or Carp::croak "$src->[$_]: $!";
		672	}
		673
		674	# if processing is expensive, check
		675	# checksum first
		676	if (1) {
		677	$md5 =
		678	join "\x00",
		679	$processversion,
		680	map {
		681	cf::cede_to_tick;
		682	($src->[$_], Digest::MD5::md5_hex $data[$_])
		683	} 0.. $#$src;
		684
		685
		686	my $dbmd5 = db_get cache => "$id/md5";
		687	if ($dbmd5 eq $md5) {
		688	db_put cache => "$id/meta", $meta;
		689
		690	return db_get cache => "$id/data";
		691	}
		692	}
		693
		694	my $t1 = Time::HiRes::time;
		695	my $data = $process->(\@data);
		696	my $t2 = Time::HiRes::time;
		697
		698	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		699
		700	db_put cache => "$id/data", $data;
		701	db_put cache => "$id/md5" , $md5;
		702	db_put cache => "$id/meta", $meta;
		703
		704	return $data;
		705	}
		706
		707	db_get cache => "$id/data"
		708	}
		709
		710	=item cf::datalog type => key => value, ...
		711
		712	Log a datalog packet of the given type with the given key-value pairs.
		713
		714	=cut
		715
		716	sub datalog($@) {
		717	my ($type, %kv) = @_;
		718	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		719	}
		720
245	=back	721	=back
246		722
247	=cut	723	=cut
248		724
249	#############################################################################	725	#############################################################################
…		…
254	attach callbacks/event handlers (a collection of which is called an "attachment")	730	attach callbacks/event handlers (a collection of which is called an "attachment")
255	to it. All such attachable objects support the following methods.	731	to it. All such attachable objects support the following methods.
256		732
257	In the following description, CLASS can be any of C<global>, C<object>	733	In the following description, CLASS can be any of C<global>, C<object>
258	C<player>, C<client> or C<map> (i.e. the attachable objects in	734	C<player>, C<client> or C<map> (i.e. the attachable objects in
259	crossfire+).	735	Deliantra).
260		736
261	=over 4	737	=over 4
262		738
263	=item $attachable->attach ($attachment, key => $value...)	739	=item $attachable->attach ($attachment, key => $value...)
264		740
…		…
378	our @CB_TYPE = (); # registry for type (cf-object class) based events	854	our @CB_TYPE = (); # registry for type (cf-object class) based events
379	our @CB_MAP = ();	855	our @CB_MAP = ();
380		856
381	my %attachment;	857	my %attachment;
382		858
		859	sub cf::attachable::thawer_merge {
		860	# simply override everything except _meta
		861	local $_[0]{_meta};
		862	%{$_[0]} = %{$_[1]};
		863	}
		864
383	sub _attach_cb($$$$) {	865	sub _attach_cb($$$$) {
384	my ($registry, $event, $prio, $cb) = @_;	866	my ($registry, $event, $prio, $cb) = @_;
385		867
386	use sort 'stable';	868	use sort 'stable';
387		869
…		…
421	$registry = $CB_TYPE[$object_type] ||= [];	903	$registry = $CB_TYPE[$object_type] ||= [];
422		904
423	} elsif ($type eq "subtype") {	905	} elsif ($type eq "subtype") {
424	defined $object_type or Carp::croak "subtype specified without type";	906	defined $object_type or Carp::croak "subtype specified without type";
425	my $object_subtype = shift @arg;	907	my $object_subtype = shift @arg;
426	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	908	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
427		909
428	} elsif ($type eq "package") {	910	} elsif ($type eq "package") {
429	my $pkg = shift @arg;	911	my $pkg = shift @arg;
430		912
431	while (my ($name, $id) = each %cb_id) {	913	while (my ($name, $id) = each %cb_id) {
…		…
460	_attach $registry, $klass, @attach;	942	_attach $registry, $klass, @attach;
461	}	943	}
462		944
463	$obj->{$name} = \%arg;	945	$obj->{$name} = \%arg;
464	} else {	946	} else {
465	warn "object uses attachment '$name' that is not available, postponing.\n";	947	warn "object uses attachment '$name' which is not available, postponing.\n";
466	}	948	}
467		949
468	$obj->{_attachment}{$name} = undef;	950	$obj->{_attachment}{$name} = undef;
469	}	951	}
470		952
…		…
472	if (ref $_[0]) {	954	if (ref $_[0]) {
473	_object_attach @_;	955	_object_attach @_;
474	} else {	956	} else {
475	_attach shift->_attach_registry, @_;	957	_attach shift->_attach_registry, @_;
476	}	958	}
		959	_recalc_want;
477	};	960	};
478		961
479	# all those should be optimised	962	# all those should be optimised
480	sub cf::attachable::detach {	963	sub cf::attachable::detach {
481	my ($obj, $name) = @_;	964	my ($obj, $name) = @_;
…		…
484	delete $obj->{_attachment}{$name};	967	delete $obj->{_attachment}{$name};
485	reattach ($obj);	968	reattach ($obj);
486	} else {	969	} else {
487	Carp::croak "cannot, currently, detach class attachments";	970	Carp::croak "cannot, currently, detach class attachments";
488	}	971	}
		972	_recalc_want;
489	};	973	};
490		974
491	sub cf::attachable::attached {	975	sub cf::attachable::attached {
492	my ($obj, $name) = @_;	976	my ($obj, $name) = @_;
493		977
…		…
508	";	992	";
509	die if $@;	993	die if $@;
510	}	994	}
511		995
512	our $override;	996	our $override;
513	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	997	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
514		998
515	sub override {	999	sub override {
516	$override = 1;	1000	$override = 1;
517	@invoke_results = ();	1001	@INVOKE_RESULTS = (@_);
518	}	1002	}
519		1003
520	sub do_invoke {	1004	sub do_invoke {
521	my $event = shift;	1005	my $event = shift;
522	my $callbacks = shift;	1006	my $callbacks = shift;
523		1007
524	@invoke_results = ();	1008	@INVOKE_RESULTS = ();
525		1009
526	local $override;	1010	local $override;
527		1011
528	for (@$callbacks) {	1012	for (@$callbacks) {
529	eval { &{$_->[1]} };	1013	eval { &{$_->[1]} };
…		…
538	}	1022	}
539		1023
540	0	1024	0
541	}	1025	}
542		1026
543	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1027	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
544		1028
545	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1029	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
546		1030
547	Generate an object-specific event with the given arguments.	1031	Generate an object-specific event with the given arguments.
548		1032
549	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1033	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
550	removed in future versions), and there is no public API to access override	1034	removed in future versions), and there is no public API to access override
551	results (if you must, access C<@cf::invoke_results> directly).	1035	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
552		1036
553	=back	1037	=back
554		1038
555	=cut	1039	=cut
556		1040
557	#############################################################################	1041	#############################################################################
558	# object support	1042	# object support
		1043
		1044	sub _object_equal($$);
		1045	sub _object_equal($$) {
		1046	my ($a, $b) = @_;
		1047
		1048	return 0 unless (ref $a) eq (ref $b);
		1049
		1050	if ("HASH" eq ref $a) {
		1051	my @ka = keys %$a;
		1052	my @kb = keys %$b;
		1053
		1054	return 0 if @ka != @kb;
		1055
		1056	for (0 .. $#ka) {
		1057	return 0 unless $ka[$_] eq $kb[$_];
		1058	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1059	}
		1060
		1061	} elsif ("ARRAY" eq ref $a) {
		1062
		1063	return 0 if @$a != @$b;
		1064
		1065	for (0 .. $#$a) {
		1066	return 0 unless _object_equal $a->[$_], $b->[$_];
		1067	}
		1068
		1069	} elsif ($a ne $b) {
		1070	return 0;
		1071	}
		1072
		1073	1
		1074	}
		1075
		1076	our $SLOW_MERGES;#d#
		1077	sub _can_merge {
		1078	my ($ob1, $ob2) = @_;
		1079
		1080	++$SLOW_MERGES;#d#
		1081
		1082	# we do the slow way here
		1083	return _object_equal $ob1, $ob2
		1084	}
559		1085
560	sub reattach {	1086	sub reattach {
561	# basically do the same as instantiate, without calling instantiate	1087	# basically do the same as instantiate, without calling instantiate
562	my ($obj) = @_;	1088	my ($obj) = @_;
		1089
		1090	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
563		1091
564	my $registry = $obj->registry;	1092	my $registry = $obj->registry;
565		1093
566	@$registry = ();	1094	@$registry = ();
567		1095
…		…
582	cf::attachable->attach (	1110	cf::attachable->attach (
583	prio => -1000000,	1111	prio => -1000000,
584	on_instantiate => sub {	1112	on_instantiate => sub {
585	my ($obj, $data) = @_;	1113	my ($obj, $data) = @_;
586		1114
587	$data = from_json $data;	1115	$data = decode_json $data;
588		1116
589	for (@$data) {	1117	for (@$data) {
590	my ($name, $args) = @$_;	1118	my ($name, $args) = @$_;
591		1119
592	$obj->attach ($name, %{$args || {} });	1120	$obj->attach ($name, %{$args || {} });
…		…
608	sub object_freezer_save {	1136	sub object_freezer_save {
609	my ($filename, $rdata, $objs) = @_;	1137	my ($filename, $rdata, $objs) = @_;
610		1138
611	sync_job {	1139	sync_job {
612	if (length $$rdata) {	1140	if (length $$rdata) {
		1141	utf8::decode (my $decname = $filename);
613	warn sprintf "saving %s (%d,%d)\n",	1142	warn sprintf "saving %s (%d,%d)\n",
614	$filename, length $$rdata, scalar @$objs;	1143	$decname, length $$rdata, scalar @$objs;
615		1144
616	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1145	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
617	chmod SAVE_MODE, $fh;	1146	aio_chmod $fh, SAVE_MODE;
618	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1147	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
619	aio_fsync $fh;	1148	aio_fsync $fh if $cf::USE_FSYNC;
620	close $fh;	1149	aio_close $fh;
621		1150
622	if (@$objs) {	1151	if (@$objs) {
623	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1152	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
624	chmod SAVE_MODE, $fh;	1153	aio_chmod $fh, SAVE_MODE;
625	my $data = Storable::nfreeze { version => 1, objs => $objs };	1154	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
626	aio_write $fh, 0, (length $data), $data, 0;	1155	aio_write $fh, 0, (length $data), $data, 0;
627	aio_fsync $fh;	1156	aio_fsync $fh if $cf::USE_FSYNC;
628	close $fh;	1157	aio_close $fh;
629	aio_rename "$filename.pst~", "$filename.pst";	1158	aio_rename "$filename.pst~", "$filename.pst";
630	}	1159	}
631	} else {	1160	} else {
632	aio_unlink "$filename.pst";	1161	aio_unlink "$filename.pst";
633	}	1162	}
…		…
638	}	1167	}
639	} else {	1168	} else {
640	aio_unlink $filename;	1169	aio_unlink $filename;
641	aio_unlink "$filename.pst";	1170	aio_unlink "$filename.pst";
642	}	1171	}
643	}	1172	};
644	}	1173	}
645		1174
646	sub object_freezer_as_string {	1175	sub object_freezer_as_string {
647	my ($rdata, $objs) = @_;	1176	my ($rdata, $objs) = @_;
648		1177
…		…
660	or return;	1189	or return;
661		1190
662	unless (aio_stat "$filename.pst") {	1191	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	1192	(aio_load "$filename.pst", $av) >= 0
664	or return;	1193	or return;
		1194
665	$av = eval { (Storable::thaw <$av>)->{objs} };	1195	my $st = eval { Coro::Storable::thaw $av };
		1196	$av = $st->{objs};
666	}	1197	}
667		1198
		1199	utf8::decode (my $decname = $filename);
		1200	warn sprintf "loading %s (%d,%d)\n",
		1201	$decname, length $data, scalar @{$av || []};
		1202
668	return ($data, $av);	1203	($data, $av)
669	}	1204	}
		1205
		1206	=head2 COMMAND CALLBACKS
		1207
		1208	=over 4
		1209
		1210	=cut
670		1211
671	#############################################################################	1212	#############################################################################
672	# command handling &c	1213	# command handling &c
673		1214
674	=item cf::register_command $name => \&callback($ob,$args);	1215	=item cf::register_command $name => \&callback($ob,$args);
…		…
687	push @{ $COMMAND{$name} }, [$caller, $cb];	1228	push @{ $COMMAND{$name} }, [$caller, $cb];
688	}	1229	}
689		1230
690	=item cf::register_extcmd $name => \&callback($pl,$packet);	1231	=item cf::register_extcmd $name => \&callback($pl,$packet);
691		1232
692	Register a callbackf ro execution when the client sends an extcmd packet.	1233	Register a callback for execution when the client sends an (synchronous)
		1234	extcmd packet. Ext commands will be processed in the order they are
		1235	received by the server, like other user commands. The first argument is
		1236	the logged-in player. Ext commands can only be processed after a player
		1237	has logged in successfully.
693		1238
694	If the callback returns something, it is sent back as if reply was being	1239	If the callback returns something, it is sent back as if reply was being
695	called.	1240	called.
696		1241
		1242	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1243
		1244	Register a callback for execution when the client sends an (asynchronous)
		1245	exticmd packet. Exti commands are processed by the server as soon as they
		1246	are received, i.e. out of order w.r.t. other commands. The first argument
		1247	is a client socket. Exti commands can be received anytime, even before
		1248	log-in.
		1249
		1250	If the callback returns something, it is sent back as if reply was being
		1251	called.
		1252
697	=cut	1253	=cut
698		1254
699	sub register_extcmd {	1255	sub register_extcmd {
700	my ($name, $cb) = @_;	1256	my ($name, $cb) = @_;
701		1257
702	my $caller = caller;
703	#warn "registering extcmd '$name' to '$caller'";
704
705	$EXTCMD{$name} = [$cb, $caller];	1258	$EXTCMD{$name} = $cb;
		1259	}
		1260
		1261	sub register_exticmd {
		1262	my ($name, $cb) = @_;
		1263
		1264	$EXTICMD{$name} = $cb;
706	}	1265	}
707		1266
708	cf::player->attach (	1267	cf::player->attach (
709	on_command => sub {	1268	on_command => sub {
710	my ($pl, $name, $params) = @_;	1269	my ($pl, $name, $params) = @_;
…		…
719	cf::override;	1278	cf::override;
720	},	1279	},
721	on_extcmd => sub {	1280	on_extcmd => sub {
722	my ($pl, $buf) = @_;	1281	my ($pl, $buf) = @_;
723		1282
724	my $msg = eval { from_json $buf };	1283	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
725		1284
726	if (ref $msg) {	1285	if (ref $msg) {
		1286	my ($type, $reply, @payload) =
		1287	"ARRAY" eq ref $msg
		1288	? @$msg
		1289	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1290
		1291	my @reply;
		1292
727	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1293	if (my $cb = $EXTCMD{$type}) {
728	if (my %reply = $cb->[0]->($pl, $msg)) {	1294	@reply = $cb->($pl, @payload);
729	$pl->ext_reply ($msg->{msgid}, %reply);
730	}
731	}	1295	}
		1296
		1297	$pl->ext_reply ($reply, @reply)
		1298	if $reply;
		1299
732	} else {	1300	} else {
733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1301	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
734	}	1302	}
735		1303
736	cf::override;	1304	cf::override;
737	},	1305	},
738	);	1306	);
739		1307
		1308	sub load_extensions {
		1309	cf::sync_job {
		1310	my %todo;
		1311
		1312	for my $path (<$LIBDIR/*.ext>) {
		1313	next unless -r $path;
		1314
		1315	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1316	my $base = $1;
		1317	my $pkg = $1;
		1318	$pkg =~ s/[^[:word:]]/_/g;
		1319	$pkg = "ext::$pkg";
		1320
		1321	open my $fh, "<:utf8", $path
		1322	or die "$path: $!";
		1323
		1324	my $source = do { local $/; <$fh> };
		1325
		1326	my %ext = (
		1327	path => $path,
		1328	base => $base,
		1329	pkg => $pkg,
		1330	);
		1331
		1332	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1333	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1334
		1335	$ext{source} =
		1336	"package $pkg; use strict; use utf8;\n"
		1337	. "#line 1 \"$path\"\n{\n"
		1338	. $source
		1339	. "\n};\n1";
		1340
		1341	$todo{$base} = \%ext;
		1342	}
		1343
		1344	my %done;
		1345	while (%todo) {
		1346	my $progress;
		1347
		1348	while (my ($k, $v) = each %todo) {
		1349	for (split /,\s*/, $v->{meta}{depends}) {
		1350	goto skip
		1351	unless exists $done{$_};
		1352	}
		1353
		1354	warn "... loading '$k' into '$v->{pkg}'\n";
		1355
		1356	unless (eval $v->{source}) {
		1357	my $msg = $@ ? "$v->{path}: $@\n"
		1358	: "$v->{base}: extension inactive.\n";
		1359
		1360	if (exists $v->{meta}{mandatory}) {
		1361	warn $msg;
		1362	cf::cleanup "mandatory extension failed to load, exiting.";
		1363	}
		1364
		1365	warn $msg;
		1366	}
		1367
		1368	$done{$k} = delete $todo{$k};
		1369	push @EXTS, $v->{pkg};
		1370	$progress = 1;
		1371	}
		1372
		1373	skip:
		1374	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1375	unless $progress;
		1376	}
		1377	};
		1378	}
		1379
		1380	#############################################################################
		1381
		1382	=back
		1383
		1384	=head2 CORE EXTENSIONS
		1385
		1386	Functions and methods that extend core crossfire objects.
		1387
		1388	=cut
		1389
		1390	package cf::player;
		1391
		1392	use Coro::AIO;
		1393
		1394	=head3 cf::player
		1395
		1396	=over 4
		1397
		1398	=item cf::player::num_playing
		1399
		1400	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1401
		1402	=cut
		1403
		1404	sub num_playing {
		1405	scalar grep
		1406	$_->ob->map
		1407	&& !$_->hidden
		1408	&& !$_->ob->flag (cf::FLAG_WIZ),
		1409	cf::player::list
		1410	}
		1411
		1412	=item cf::player::find $login
		1413
		1414	Returns the given player object, loading it if necessary (might block).
		1415
		1416	=cut
		1417
		1418	sub playerdir($) {
		1419	"$PLAYERDIR/"
		1420	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1421	}
		1422
		1423	sub path($) {
		1424	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1425
		1426	(playerdir $login) . "/playerdata"
		1427	}
		1428
		1429	sub find_active($) {
		1430	$cf::PLAYER{$_[0]}
		1431	and $cf::PLAYER{$_[0]}->active
		1432	and $cf::PLAYER{$_[0]}
		1433	}
		1434
		1435	sub exists($) {
		1436	my ($login) = @_;
		1437
		1438	$cf::PLAYER{$login}
		1439	or cf::sync_job { !aio_stat path $login }
		1440	}
		1441
		1442	sub find($) {
		1443	return $cf::PLAYER{$_[0]} || do {
		1444	my $login = $_[0];
		1445
		1446	my $guard = cf::lock_acquire "user_find:$login";
		1447
		1448	$cf::PLAYER{$_[0]} || do {
		1449	# rename old playerfiles to new ones
		1450	#TODO: remove when no longer required
		1451	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1452	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1453	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1454	aio_unlink +(playerdir $login) . "/$login.pl";
		1455
		1456	my $f = new_from_file cf::object::thawer path $login
		1457	or return;
		1458
		1459	my $pl = cf::player::load_pl $f
		1460	or return;
		1461
		1462	local $cf::PLAYER_LOADING{$login} = $pl;
		1463	$f->resolve_delayed_derefs;
		1464	$cf::PLAYER{$login} = $pl
		1465	}
		1466	}
		1467	}
		1468
		1469	sub save($) {
		1470	my ($pl) = @_;
		1471
		1472	return if $pl->{deny_save};
		1473
		1474	my $path = path $pl;
		1475	my $guard = cf::lock_acquire "user_save:$path";
		1476
		1477	return if $pl->{deny_save};
		1478
		1479	aio_mkdir playerdir $pl, 0770;
		1480	$pl->{last_save} = $cf::RUNTIME;
		1481
		1482	cf::get_slot 0.01;
		1483
		1484	$pl->save_pl ($path);
		1485	cf::cede_to_tick;
		1486	}
		1487
		1488	sub new($) {
		1489	my ($login) = @_;
		1490
		1491	my $self = create;
		1492
		1493	$self->ob->name ($login);
		1494	$self->{deny_save} = 1;
		1495
		1496	$cf::PLAYER{$login} = $self;
		1497
		1498	$self
		1499	}
		1500
		1501	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1502
		1503	=cut
		1504
		1505	sub send_msg {
		1506	my $ns = shift->ns
		1507	or return;
		1508	$ns->send_msg (@_);
		1509	}
		1510
		1511	=item $pl->quit_character
		1512
		1513	Nukes the player without looking back. If logged in, the connection will
		1514	be destroyed. May block for a long time.
		1515
		1516	=cut
		1517
		1518	sub quit_character {
		1519	my ($pl) = @_;
		1520
		1521	my $name = $pl->ob->name;
		1522
		1523	$pl->{deny_save} = 1;
		1524	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1525
		1526	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1527	$pl->deactivate;
		1528	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1529	$pl->ns->destroy if $pl->ns;
		1530
		1531	my $path = playerdir $pl;
		1532	my $temp = "$path~$cf::RUNTIME~deleting~";
		1533	aio_rename $path, $temp;
		1534	delete $cf::PLAYER{$pl->ob->name};
		1535	$pl->destroy;
		1536
		1537	my $prefix = qr<^~\Q$name\E/>;
		1538
		1539	# nuke player maps
		1540	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1541
		1542	IO::AIO::aio_rmtree $temp;
		1543	}
		1544
		1545	=item $pl->kick
		1546
		1547	Kicks a player out of the game. This destroys the connection.
		1548
		1549	=cut
		1550
		1551	sub kick {
		1552	my ($pl, $kicker) = @_;
		1553
		1554	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1555	$pl->killer ("kicked");
		1556	$pl->ns->destroy;
		1557	}
		1558
		1559	=item cf::player::list_logins
		1560
		1561	Returns am arrayref of all valid playernames in the system, can take a
		1562	while and may block, so not sync_job-capable, ever.
		1563
		1564	=cut
		1565
		1566	sub list_logins {
		1567	my $dirs = aio_readdir $PLAYERDIR
		1568	or return [];
		1569
		1570	my @logins;
		1571
		1572	for my $login (@$dirs) {
		1573	my $path = path $login;
		1574
		1575	# a .pst is a dead give-away for a valid player
		1576	# if no pst file found, open and chekc for blocked users
		1577	if (aio_stat "$path.pst") {
		1578	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1579	aio_read $fh, 0, 512, my $buf, 0 or next;
		1580	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1581	}
		1582
		1583	utf8::decode $login;
		1584	push @logins, $login;
		1585	}
		1586
		1587	\@logins
		1588	}
		1589
		1590	=item $player->maps
		1591
		1592	Returns an arrayref of map paths that are private for this
		1593	player. May block.
		1594
		1595	=cut
		1596
		1597	sub maps($) {
		1598	my ($pl) = @_;
		1599
		1600	$pl = ref $pl ? $pl->ob->name : $pl;
		1601
		1602	my $files = aio_readdir playerdir $pl
		1603	or return;
		1604
		1605	my @paths;
		1606
		1607	for (@$files) {
		1608	utf8::decode $_;
		1609	next if /\.(?:pl|pst)$/;
		1610	next unless /^$PATH_SEP/o;
		1611
		1612	push @paths, cf::map::normalise "~$pl/$_";
		1613	}
		1614
		1615	\@paths
		1616	}
		1617
		1618	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1619
		1620	Expand crossfire pod fragments into protocol xml.
		1621
		1622	=cut
		1623
		1624	use re 'eval';
		1625
		1626	my $group;
		1627	my $interior; $interior = qr{
		1628	# match a pod interior sequence sans C<< >>
		1629	(?:
		1630	\ (.*?)\ (?{ $group = $^N })
		1631	| < (??{$interior}) >
		1632	)
		1633	}x;
		1634
		1635	sub expand_cfpod {
		1636	my ($self, $pod) = @_;
		1637
		1638	my $xml;
		1639
		1640	while () {
		1641	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1642	$group = $1;
		1643
		1644	$group =~ s/&/&amp;/g;
		1645	$group =~ s/</&lt;/g;
		1646
		1647	$xml .= $group;
		1648	} elsif ($pod =~ m%\G
		1649	([BCGHITU])
		1650	<
		1651	(?:
		1652	([^<>]*) (?{ $group = $^N })
		1653	| < $interior >
		1654	)
		1655	>
		1656	%gcsx
		1657	) {
		1658	my ($code, $data) = ($1, $group);
		1659
		1660	if ($code eq "B") {
		1661	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1662	} elsif ($code eq "I") {
		1663	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1664	} elsif ($code eq "U") {
		1665	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1666	} elsif ($code eq "C") {
		1667	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1668	} elsif ($code eq "T") {
		1669	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1670	} elsif ($code eq "G") {
		1671	my ($male, $female) = split /\|/, $data;
		1672	$data = $self->gender ? $female : $male;
		1673	$xml .= expand_cfpod ($self, $data);
		1674	} elsif ($code eq "H") {
		1675	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1676	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1677	"")
		1678	[$self->{hintmode}];
		1679	} else {
		1680	$xml .= "error processing '$code($data)' directive";
		1681	}
		1682	} else {
		1683	if ($pod =~ /\G(.+)/) {
		1684	warn "parse error while expanding $pod (at $1)";
		1685	}
		1686	last;
		1687	}
		1688	}
		1689
		1690	for ($xml) {
		1691	# create single paragraphs (very hackish)
		1692	s/(?<=\S)\n(?=\w)/ /g;
		1693
		1694	# compress some whitespace
		1695	s/\s+\n/\n/g; # ws line-ends
		1696	s/\n\n+/\n/g; # double lines
		1697	s/^\n+//; # beginning lines
		1698	s/\n+$//; # ending lines
		1699	}
		1700
		1701	$xml
		1702	}
		1703
		1704	no re 'eval';
		1705
		1706	sub hintmode {
		1707	$_[0]{hintmode} = $_[1] if @_ > 1;
		1708	$_[0]{hintmode}
		1709	}
		1710
		1711	=item $player->ext_reply ($msgid, @msg)
		1712
		1713	Sends an ext reply to the player.
		1714
		1715	=cut
		1716
		1717	sub ext_reply($$@) {
		1718	my ($self, $id, @msg) = @_;
		1719
		1720	$self->ns->ext_reply ($id, @msg)
		1721	}
		1722
		1723	=item $player->ext_msg ($type, @msg)
		1724
		1725	Sends an ext event to the client.
		1726
		1727	=cut
		1728
		1729	sub ext_msg($$@) {
		1730	my ($self, $type, @msg) = @_;
		1731
		1732	$self->ns->ext_msg ($type, @msg);
		1733	}
		1734
		1735	=head3 cf::region
		1736
		1737	=over 4
		1738
		1739	=cut
		1740
		1741	package cf::region;
		1742
		1743	=item cf::region::find_by_path $path
		1744
		1745	Tries to decuce the likely region for a map knowing only its path.
		1746
		1747	=cut
		1748
		1749	sub find_by_path($) {
		1750	my ($path) = @_;
		1751
		1752	my ($match, $specificity);
		1753
		1754	for my $region (list) {
		1755	if ($region->{match} && $path =~ $region->{match}) {
		1756	($match, $specificity) = ($region, $region->specificity)
		1757	if $region->specificity > $specificity;
		1758	}
		1759	}
		1760
		1761	$match
		1762	}
		1763
		1764	=back
		1765
		1766	=head3 cf::map
		1767
		1768	=over 4
		1769
		1770	=cut
		1771
		1772	package cf::map;
		1773
		1774	use Fcntl;
		1775	use Coro::AIO;
		1776
		1777	use overload
		1778	'""' => \&as_string,
		1779	fallback => 1;
		1780
		1781	our $MAX_RESET = 3600;
		1782	our $DEFAULT_RESET = 3000;
		1783
		1784	sub generate_random_map {
		1785	my ($self, $rmp) = @_;
		1786
		1787	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1788
		1789	# mit "rum" bekleckern, nicht
		1790	$self->_create_random_map (
		1791	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1792	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1793	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1794	$rmp->{exit_on_final_map},
		1795	$rmp->{xsize}, $rmp->{ysize},
		1796	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1797	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1798	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1799	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1800	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1801	(cf::region::find $rmp->{region}), $rmp->{custom}
		1802	)
		1803	}
		1804
		1805	=item cf::map->register ($regex, $prio)
		1806
		1807	Register a handler for the map path matching the given regex at the
		1808	givne priority (higher is better, built-in handlers have priority 0, the
		1809	default).
		1810
		1811	=cut
		1812
740	sub register {	1813	sub register {
		1814	my (undef, $regex, $prio) = @_;
		1815	my $pkg = caller;
		1816
		1817	no strict;
		1818	push @{"$pkg\::ISA"}, __PACKAGE__;
		1819
		1820	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1821	}
		1822
		1823	# also paths starting with '/'
		1824	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1825
		1826	sub thawer_merge {
741	my ($base, $pkg) = @_;	1827	my ($self, $merge) = @_;
742		1828
743	#TODO	1829	# we have to keep some variables in memory intact
744	}	1830	local $self->{path};
		1831	local $self->{load_path};
745		1832
746	sub load_extension {	1833	$self->SUPER::thawer_merge ($merge);
		1834	}
		1835
		1836	sub normalise {
747	my ($path) = @_;	1837	my ($path, $base) = @_;
748		1838
749	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1839	$path = "$path"; # make sure its a string
750	my $base = $1;
751	my $pkg = $1;
752	$pkg =~ s/[^[:word:]]/_/g;
753	$pkg = "ext::$pkg";
754		1840
755	warn "loading '$path' into '$pkg'\n";	1841	$path =~ s/\.map$//;
756		1842
757	open my $fh, "<:utf8", $path	1843	# map plan:
758	or die "$path: $!";	1844	#
		1845	# /! non-realised random map exit (special hack!)
		1846	# {... are special paths that are not being touched
		1847	# ?xxx/... are special absolute paths
		1848	# ?random/... random maps
		1849	# /... normal maps
		1850	# ~user/... per-player map of a specific user
759		1851
760	my $source =	1852	$path =~ s/$PATH_SEP/\//go;
761	"package $pkg; use strict; use utf8;\n"
762	. "#line 1 \"$path\"\n{\n"
763	. (do { local $/; <$fh> })
764	. "\n};\n1";
765		1853
766	eval $source	1854	# treat it as relative path if it starts with
767	or die $@ ? "$path: $@\n"	1855	# something that looks reasonable
768	: "extension disabled.\n";	1856	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1857	$base or Carp::carp "normalise called with relative path and no base: '$path'";
769		1858
770	push @exts, $pkg;	1859	$base =~ s{[^/]+/?$}{};
771	$ext_pkg{$base} = $pkg;	1860	$path = "$base/$path";
772
773	# no strict 'refs';
774	# @{"$pkg\::ISA"} = ext::;
775
776	register $base, $pkg;
777	}
778
779	sub unload_extension {
780	my ($pkg) = @_;
781
782	warn "removing extension $pkg\n";
783
784	# remove hooks
785	#TODO
786	# for my $idx (0 .. $#PLUGIN_EVENT) {
787	# delete $hook[$idx]{$pkg};
788	# }	1861	}
789		1862
790	# remove commands	1863	for ($path) {
791	for my $name (keys %COMMAND) {	1864	redo if s{//}{/};
792	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1865	redo if s{/\.?/}{/};
		1866	redo if s{/[^/]+/\.\./}{/};
		1867	}
793		1868
794	if (@cb) {	1869	$path
795	$COMMAND{$name} = \@cb;	1870	}
		1871
		1872	sub new_from_path {
		1873	my (undef, $path, $base) = @_;
		1874
		1875	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1876
		1877	$path = normalise $path, $base;
		1878
		1879	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1880	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1881	my $self = bless cf::map::new, $pkg;
		1882	$self->{path} = $path; $self->path ($path);
		1883	$self->init; # pass $1 etc.
		1884	return $self;
		1885	}
		1886	}
		1887
		1888	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1889	()
		1890	}
		1891
		1892	sub init {
		1893	my ($self) = @_;
		1894
		1895	$self
		1896	}
		1897
		1898	sub as_string {
		1899	my ($self) = @_;
		1900
		1901	"$self->{path}"
		1902	}
		1903
		1904	# the displayed name, this is a one way mapping
		1905	sub visible_name {
		1906	&as_string
		1907	}
		1908
		1909	# the original (read-only) location
		1910	sub load_path {
		1911	my ($self) = @_;
		1912
		1913	"$MAPDIR/$self->{path}.map"
		1914	}
		1915
		1916	# the temporary/swap location
		1917	sub save_path {
		1918	my ($self) = @_;
		1919
		1920	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1921	"$TMPDIR/$path.map"
		1922	}
		1923
		1924	# the unique path, undef == no special unique path
		1925	sub uniq_path {
		1926	my ($self) = @_;
		1927
		1928	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1929	"$UNIQUEDIR/$path"
		1930	}
		1931
		1932	# and all this just because we cannot iterate over
		1933	# all maps in C++...
		1934	sub change_all_map_light {
		1935	my ($change) = @_;
		1936
		1937	$_->change_map_light ($change)
		1938	for grep $_->outdoor, values %cf::MAP;
		1939	}
		1940
		1941	sub decay_objects {
		1942	my ($self) = @_;
		1943
		1944	return if $self->{deny_reset};
		1945
		1946	$self->do_decay_objects;
		1947	}
		1948
		1949	sub unlink_save {
		1950	my ($self) = @_;
		1951
		1952	utf8::encode (my $save = $self->save_path);
		1953	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1954	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1955	}
		1956
		1957	sub load_header_from($) {
		1958	my ($self, $path) = @_;
		1959
		1960	utf8::encode $path;
		1961	my $f = new_from_file cf::object::thawer $path
		1962	or return;
		1963
		1964	$self->_load_header ($f)
		1965	or return;
		1966
		1967	local $MAP_LOADING{$self->{path}} = $self;
		1968	$f->resolve_delayed_derefs;
		1969
		1970	$self->{load_path} = $path;
		1971
		1972	1
		1973	}
		1974
		1975	sub load_header_orig {
		1976	my ($self) = @_;
		1977
		1978	$self->load_header_from ($self->load_path)
		1979	}
		1980
		1981	sub load_header_temp {
		1982	my ($self) = @_;
		1983
		1984	$self->load_header_from ($self->save_path)
		1985	}
		1986
		1987	sub prepare_temp {
		1988	my ($self) = @_;
		1989
		1990	$self->last_access ((delete $self->{last_access})
		1991	|| $cf::RUNTIME); #d#
		1992	# safety
		1993	$self->{instantiate_time} = $cf::RUNTIME
		1994	if $self->{instantiate_time} > $cf::RUNTIME;
		1995	}
		1996
		1997	sub prepare_orig {
		1998	my ($self) = @_;
		1999
		2000	$self->{load_original} = 1;
		2001	$self->{instantiate_time} = $cf::RUNTIME;
		2002	$self->last_access ($cf::RUNTIME);
		2003	$self->instantiate;
		2004	}
		2005
		2006	sub load_header {
		2007	my ($self) = @_;
		2008
		2009	if ($self->load_header_temp) {
		2010	$self->prepare_temp;
796	} else {	2011	} else {
797	delete $COMMAND{$name};	2012	$self->load_header_orig
798	}	2013	or return;
		2014	$self->prepare_orig;
		2015	}
		2016
		2017	$self->{deny_reset} = 1
		2018	if $self->no_reset;
		2019
		2020	$self->default_region (cf::region::find_by_path $self->{path})
		2021	unless $self->default_region;
		2022
799	}	2023	1
		2024	}
800		2025
801	# remove extcmds	2026	sub find;
802	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	2027	sub find {
803	delete $EXTCMD{$name};	2028	my ($path, $origin) = @_;
		2029
		2030	$path = normalise $path, $origin && $origin->path;
		2031
		2032	cf::lock_wait "map_data:$path";#d#remove
		2033	cf::lock_wait "map_find:$path";
		2034
		2035	$cf::MAP{$path} || do {
		2036	my $guard1 = cf::lock_acquire "map_find:$path";
		2037	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		2038
		2039	my $map = new_from_path cf::map $path
		2040	or return;
		2041
		2042	$map->{last_save} = $cf::RUNTIME;
		2043
		2044	$map->load_header
		2045	or return;
		2046
		2047	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2048	# doing this can freeze the server in a sync job, obviously
		2049	#$cf::WAIT_FOR_TICK->wait;
		2050	undef $guard1;
		2051	undef $guard2;
		2052	$map->reset;
		2053	return find $path;
		2054	}
		2055
		2056	$cf::MAP{$path} = $map
		2057	}
		2058	}
		2059
		2060	sub pre_load { }
		2061	sub post_load { }
		2062
		2063	sub load {
		2064	my ($self) = @_;
		2065
		2066	local $self->{deny_reset} = 1; # loading can take a long time
		2067
		2068	my $path = $self->{path};
		2069
804	}	2070	{
		2071	my $guard = cf::lock_acquire "map_data:$path";
805		2072
806	if (my $cb = $pkg->can ("unload")) {	2073	return unless $self->valid;
807	eval {	2074	return unless $self->in_memory == cf::MAP_SWAPPED;
808	$cb->($pkg);	2075
		2076	$self->in_memory (cf::MAP_LOADING);
		2077
		2078	$self->alloc;
		2079
		2080	$self->pre_load;
		2081	cf::cede_to_tick;
		2082
		2083	my $f = new_from_file cf::object::thawer $self->{load_path};
		2084	$f->skip_block;
		2085	$self->_load_objects ($f)
		2086	or return;
		2087
		2088	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		2089	if delete $self->{load_original};
		2090
		2091	if (my $uniq = $self->uniq_path) {
		2092	utf8::encode $uniq;
		2093	unless (aio_stat $uniq) {
		2094	if (my $f = new_from_file cf::object::thawer $uniq) {
		2095	$self->clear_unique_items;
		2096	$self->_load_objects ($f);
		2097	$f->resolve_delayed_derefs;
		2098	}
809	1	2099	}
810	} or warn "$pkg unloaded, but with errors: $@";	2100	}
811	}
812		2101
813	Symbol::delete_package $pkg;	2102	$f->resolve_delayed_derefs;
814	}
815		2103
816	sub load_extensions {	2104	cf::cede_to_tick;
817	for my $ext (<$LIBDIR/*.ext>) {	2105	# now do the right thing for maps
818	next unless -r $ext;	2106	$self->link_multipart_objects;
819	eval {	2107	$self->difficulty ($self->estimate_difficulty)
820	load_extension $ext;	2108	unless $self->difficulty;
821	1	2109	cf::cede_to_tick;
822	} or warn "$ext not loaded: $@";
823	}
824	}
825		2110
826	#############################################################################	2111	unless ($self->{deny_activate}) {
827	# load/save/clean perl data associated with a map	2112	$self->decay_objects;
		2113	$self->fix_auto_apply;
		2114	$self->update_buttons;
		2115	cf::cede_to_tick;
		2116	$self->set_darkness_map;
		2117	cf::cede_to_tick;
		2118	$self->activate;
		2119	}
828		2120
829	*cf::mapsupport::on_clean = sub {	2121	$self->{last_save} = $cf::RUNTIME;
		2122	$self->last_access ($cf::RUNTIME);
		2123
		2124	$self->in_memory (cf::MAP_ACTIVE);
		2125	}
		2126
		2127	$self->post_load;
		2128	}
		2129
		2130	sub customise_for {
		2131	my ($self, $ob) = @_;
		2132
		2133	return find "~" . $ob->name . "/" . $self->{path}
		2134	if $self->per_player;
		2135
		2136	# return find "?party/" . $ob->name . "/" . $self->{path}
		2137	# if $self->per_party;
		2138
		2139	$self
		2140	}
		2141
		2142	# find and load all maps in the 3x3 area around a map
		2143	sub load_neighbours {
830	my ($map) = @_;	2144	my ($map) = @_;
831		2145
832	my $path = $map->tmpname;	2146	my @neigh; # diagonal neighbours
833	defined $path or return;
834		2147
835	unlink "$path.pst";	2148	for (0 .. 3) {
836	};	2149	my $neigh = $map->tile_path ($_)
		2150	or next;
		2151	$neigh = find $neigh, $map
		2152	or next;
		2153	$neigh->load;
837		2154
838	cf::map->attach (prio => -10000, package => cf::mapsupport::);	2155	push @neigh,
		2156	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2157	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2158	}
839		2159
840	#############################################################################	2160	for (grep defined $_->[0], @neigh) {
841	# load/save perl data associated with player->ob objects	2161	my ($path, $origin) = @$_;
842		2162	my $neigh = find $path, $origin
843	sub all_objects(@) {	2163	or next;
844	@_, map all_objects ($_->inv), @_	2164	$neigh->load;
		2165	}
845	}	2166	}
846		2167
847	# TODO: compatibility cruft, remove when no longer needed	2168	sub find_sync {
848	cf::player->attach (	2169	my ($path, $origin) = @_;
849	on_load => sub {
850	my ($pl, $path) = @_;
851		2170
852	for my $o (all_objects $pl->ob) {	2171	cf::sync_job { find $path, $origin }
853	if (my $value = $o->get_ob_key_value ("_perl_data")) {	2172	}
854	$o->set_ob_key_value ("_perl_data");
855		2173
856	%$o = %{ Storable::thaw pack "H*", $value };	2174	sub do_load_sync {
		2175	my ($map) = @_;
		2176
		2177	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2178	if $Coro::current == $Coro::main;
		2179
		2180	cf::sync_job { $map->load };
		2181	}
		2182
		2183	our %MAP_PREFETCH;
		2184	our $MAP_PREFETCHER = undef;
		2185
		2186	sub find_async {
		2187	my ($path, $origin, $load) = @_;
		2188
		2189	$path = normalise $path, $origin && $origin->{path};
		2190
		2191	if (my $map = $cf::MAP{$path}) {
		2192	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2193	}
		2194
		2195	$MAP_PREFETCH{$path} |= $load;
		2196
		2197	$MAP_PREFETCHER ||= cf::async {
		2198	$Coro::current->{desc} = "map prefetcher";
		2199
		2200	while (%MAP_PREFETCH) {
		2201	while (my ($k, $v) = each %MAP_PREFETCH) {
		2202	if (my $map = find $k) {
		2203	$map->load if $v;
		2204	}
		2205
		2206	delete $MAP_PREFETCH{$k};
857	}	2207	}
858	}	2208	}
		2209	undef $MAP_PREFETCHER;
		2210	};
		2211	$MAP_PREFETCHER->prio (6);
		2212
		2213	()
		2214	}
		2215
		2216	sub save {
		2217	my ($self) = @_;
		2218
		2219	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2220
		2221	$self->{last_save} = $cf::RUNTIME;
		2222
		2223	return unless $self->dirty;
		2224
		2225	my $save = $self->save_path; utf8::encode $save;
		2226	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2227
		2228	$self->{load_path} = $save;
		2229
		2230	return if $self->{deny_save};
		2231
		2232	local $self->{last_access} = $self->last_access;#d#
		2233
		2234	cf::async {
		2235	$Coro::current->{desc} = "map player save";
		2236	$_->contr->save for $self->players;
		2237	};
		2238
		2239	cf::get_slot 0.02;
		2240
		2241	if ($uniq) {
		2242	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2243	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2244	} else {
		2245	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
859	},	2246	}
860	);	2247	}
861		2248
862	#############################################################################	2249	sub swap_out {
		2250	my ($self) = @_;
863		2251
864	=head2 CORE EXTENSIONS	2252	# save first because save cedes
		2253	$self->save;
865		2254
866	Functions and methods that extend core crossfire objects.	2255	my $lock = cf::lock_acquire "map_data:$self->{path}";
867		2256
868	=head3 cf::player	2257	return if $self->players;
		2258	return if $self->in_memory != cf::MAP_ACTIVE;
		2259	return if $self->{deny_save};
		2260
		2261	$self->in_memory (cf::MAP_SWAPPED);
		2262
		2263	$self->deactivate;
		2264	$_->clear_links_to ($self) for values %cf::MAP;
		2265	$self->clear;
		2266	}
		2267
		2268	sub reset_at {
		2269	my ($self) = @_;
		2270
		2271	# TODO: safety, remove and allow resettable per-player maps
		2272	return 1e99 if $self->{deny_reset};
		2273
		2274	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2275	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2276
		2277	$time + $to
		2278	}
		2279
		2280	sub should_reset {
		2281	my ($self) = @_;
		2282
		2283	$self->reset_at <= $cf::RUNTIME
		2284	}
		2285
		2286	sub reset {
		2287	my ($self) = @_;
		2288
		2289	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2290
		2291	return if $self->players;
		2292
		2293	warn "resetting map ", $self->path;
		2294
		2295	$self->in_memory (cf::MAP_SWAPPED);
		2296
		2297	# need to save uniques path
		2298	unless ($self->{deny_save}) {
		2299	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2300
		2301	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2302	if $uniq;
		2303	}
		2304
		2305	delete $cf::MAP{$self->path};
		2306
		2307	$self->deactivate;
		2308	$_->clear_links_to ($self) for values %cf::MAP;
		2309	$self->clear;
		2310
		2311	$self->unlink_save;
		2312	$self->destroy;
		2313	}
		2314
		2315	my $nuke_counter = "aaaa";
		2316
		2317	sub nuke {
		2318	my ($self) = @_;
		2319
		2320	{
		2321	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2322
		2323	delete $cf::MAP{$self->path};
		2324
		2325	$self->unlink_save;
		2326
		2327	bless $self, "cf::map";
		2328	delete $self->{deny_reset};
		2329	$self->{deny_save} = 1;
		2330	$self->reset_timeout (1);
		2331	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2332
		2333	$cf::MAP{$self->path} = $self;
		2334	}
		2335
		2336	$self->reset; # polite request, might not happen
		2337	}
		2338
		2339	=item $maps = cf::map::tmp_maps
		2340
		2341	Returns an arrayref with all map paths of currently instantiated and saved
		2342	maps. May block.
		2343
		2344	=cut
		2345
		2346	sub tmp_maps() {
		2347	[
		2348	map {
		2349	utf8::decode $_;
		2350	/\.map$/
		2351	? normalise $_
		2352	: ()
		2353	} @{ aio_readdir $TMPDIR or [] }
		2354	]
		2355	}
		2356
		2357	=item $maps = cf::map::random_maps
		2358
		2359	Returns an arrayref with all map paths of currently instantiated and saved
		2360	random maps. May block.
		2361
		2362	=cut
		2363
		2364	sub random_maps() {
		2365	[
		2366	map {
		2367	utf8::decode $_;
		2368	/\.map$/
		2369	? normalise "?random/$_"
		2370	: ()
		2371	} @{ aio_readdir $RANDOMDIR or [] }
		2372	]
		2373	}
		2374
		2375	=item cf::map::unique_maps
		2376
		2377	Returns an arrayref of paths of all shared maps that have
		2378	instantiated unique items. May block.
		2379
		2380	=cut
		2381
		2382	sub unique_maps() {
		2383	[
		2384	map {
		2385	utf8::decode $_;
		2386	s/\.map$//; # TODO future compatibility hack
		2387	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2388	? ()
		2389	: normalise $_
		2390	} @{ aio_readdir $UNIQUEDIR or [] }
		2391	]
		2392	}
		2393
		2394	=back
		2395
		2396	=head3 cf::object
		2397
		2398	=cut
		2399
		2400	package cf::object;
869		2401
870	=over 4	2402	=over 4
871		2403
872	=item cf::player::exists $login	2404	=item $ob->inv_recursive
873		2405
874	Returns true when the given account exists.	2406	Returns the inventory of the object I<and> their inventories, recursively,
		2407	but I<not> the object itself.
875		2408
876	=cut	2409	=cut
877		2410
878	sub cf::player::exists($) {	2411	sub inv_recursive_;
879	cf::player::find $_[0]	2412	sub inv_recursive_ {
880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2413	map { $_, inv_recursive_ $_->inv } @_
881	}	2414	}
882		2415
883	=item $player->ext_reply ($msgid, $msgtype, %msg)	2416	sub inv_recursive {
884		2417	inv_recursive_ inv $_[0]
885	Sends an ext reply to the player.
886
887	=cut
888
889	sub cf::player::ext_reply($$$%) {
890	my ($self, $id, %msg) = @_;
891
892	$msg{msgid} = $id;
893
894	$self->send ("ext " . to_json \%msg);
895	}	2418	}
		2419
		2420	=item $ref = $ob->ref
		2421
		2422	Creates and returns a persistent reference to an object that can be stored as a string.
		2423
		2424	=item $ob = cf::object::deref ($refstring)
		2425
		2426	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2427	even if the object actually exists. May block.
		2428
		2429	=cut
		2430
		2431	sub deref {
		2432	my ($ref) = @_;
		2433
		2434	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2435	my ($uuid, $name) = ($1, $2);
		2436	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2437	or return;
		2438	$pl->ob->uuid eq $uuid
		2439	or return;
		2440
		2441	$pl->ob
		2442	} else {
		2443	warn "$ref: cannot resolve object reference\n";
		2444	undef
		2445	}
		2446	}
		2447
		2448	package cf;
896		2449
897	=back	2450	=back
898		2451
899	=head3 cf::object::player	2452	=head3 cf::object::player
900		2453
…		…
916		2469
917	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2470	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
918		2471
919	if ($self->{record_replies}) {	2472	if ($self->{record_replies}) {
920	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2473	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2474
921	} else {	2475	} else {
		2476	my $pl = $self->contr;
		2477
		2478	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2479	my $dialog = $pl->{npc_dialog};
		2480	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2481
		2482	} else {
922	$msg = $npc->name . " says: $msg" if $npc;	2483	$msg = $npc->name . " says: $msg" if $npc;
923	$self->message ($msg, $flags);	2484	$self->message ($msg, $flags);
		2485	}
924	}	2486	}
		2487	}
		2488
		2489	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2490
		2491	=cut
		2492
		2493	sub cf::object::send_msg {
		2494	my $pl = shift->contr
		2495	or return;
		2496	$pl->send_msg (@_);
925	}	2497	}
926		2498
927	=item $player_object->may ("access")	2499	=item $player_object->may ("access")
928		2500
929	Returns wether the given player is authorized to access resource "access"	2501	Returns wether the given player is authorized to access resource "access"
…		…
938	(ref $cf::CFG{"may_$access"}	2510	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2511	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	2512	: $cf::CFG{"may_$access"})
941	}	2513	}
942		2514
		2515	=item $player_object->enter_link
		2516
		2517	Freezes the player and moves him/her to a special map (C<{link}>).
		2518
		2519	The player should be reasonably safe there for short amounts of time. You
		2520	I<MUST> call C<leave_link> as soon as possible, though.
		2521
		2522	Will never block.
		2523
		2524	=item $player_object->leave_link ($map, $x, $y)
		2525
		2526	Moves the player out of the special C<{link}> map onto the specified
		2527	map. If the map is not valid (or omitted), the player will be moved back
		2528	to the location he/she was before the call to C<enter_link>, or, if that
		2529	fails, to the emergency map position.
		2530
		2531	Might block.
		2532
		2533	=cut
		2534
		2535	sub link_map {
		2536	unless ($LINK_MAP) {
		2537	$LINK_MAP = cf::map::find "{link}"
		2538	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2539	$LINK_MAP->load;
		2540	}
		2541
		2542	$LINK_MAP
		2543	}
		2544
		2545	sub cf::object::player::enter_link {
		2546	my ($self) = @_;
		2547
		2548	$self->deactivate_recursive;
		2549
		2550	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2551
		2552	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2553	if $self->map && $self->map->{path} ne "{link}";
		2554
		2555	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2556	}
		2557
		2558	sub cf::object::player::leave_link {
		2559	my ($self, $map, $x, $y) = @_;
		2560
		2561	return unless $self->contr->active;
		2562
		2563	my $link_pos = delete $self->{_link_pos};
		2564
		2565	unless ($map) {
		2566	# restore original map position
		2567	($map, $x, $y) = @{ $link_pos || [] };
		2568	$map = cf::map::find $map;
		2569
		2570	unless ($map) {
		2571	($map, $x, $y) = @$EMERGENCY_POSITION;
		2572	$map = cf::map::find $map
		2573	or die "FATAL: cannot load emergency map\n";
		2574	}
		2575	}
		2576
		2577	($x, $y) = (-1, -1)
		2578	unless (defined $x) && (defined $y);
		2579
		2580	# use -1 or undef as default coordinates, not 0, 0
		2581	($x, $y) = ($map->enter_x, $map->enter_y)
		2582	if $x <=0 && $y <= 0;
		2583
		2584	$map->load;
		2585	$map->load_neighbours;
		2586
		2587	return unless $self->contr->active;
		2588	$self->activate_recursive;
		2589
		2590	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2591	$self->enter_map ($map, $x, $y);
		2592	}
		2593
		2594	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2595
		2596	Moves the player to the given map-path and coordinates by first freezing
		2597	her, loading and preparing them map, calling the provided $check callback
		2598	that has to return the map if sucecssful, and then unfreezes the player on
		2599	the new (success) or old (failed) map position. In either case, $done will
		2600	be called at the end of this process.
		2601
		2602	=cut
		2603
		2604	our $GOTOGEN;
		2605
		2606	sub cf::object::player::goto {
		2607	my ($self, $path, $x, $y, $check, $done) = @_;
		2608
		2609	# do generation counting so two concurrent goto's will be executed in-order
		2610	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2611
		2612	$self->enter_link;
		2613
		2614	(async {
		2615	$Coro::current->{desc} = "player::goto $path $x $y";
		2616
		2617	# *tag paths override both path and x|y
		2618	if ($path =~ /^\*(.*)$/) {
		2619	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2620	my $ob = $obs[rand @obs];
		2621
		2622	# see if we actually can go there
		2623	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2624	$ob = $obs[rand @obs];
		2625	} else {
		2626	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2627	}
		2628	# else put us there anyways for now #d#
		2629
		2630	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2631	} else {
		2632	($path, $x, $y) = (undef, undef, undef);
		2633	}
		2634	}
		2635
		2636	my $map = eval {
		2637	my $map = defined $path ? cf::map::find $path : undef;
		2638
		2639	if ($map) {
		2640	$map = $map->customise_for ($self);
		2641	$map = $check->($map) if $check && $map;
		2642	} else {
		2643	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2644	}
		2645
		2646	$map
		2647	};
		2648
		2649	if ($@) {
		2650	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2651	LOG llevError | logBacktrace, Carp::longmess $@;
		2652	}
		2653
		2654	if ($gen == $self->{_goto_generation}) {
		2655	delete $self->{_goto_generation};
		2656	$self->leave_link ($map, $x, $y);
		2657	}
		2658
		2659	$done->() if $done;
		2660	})->prio (1);
		2661	}
		2662
		2663	=item $player_object->enter_exit ($exit_object)
		2664
		2665	=cut
		2666
		2667	sub parse_random_map_params {
		2668	my ($spec) = @_;
		2669
		2670	my $rmp = { # defaults
		2671	xsize => (cf::rndm 15, 40),
		2672	ysize => (cf::rndm 15, 40),
		2673	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2674	#layout => string,
		2675	};
		2676
		2677	for (split /\n/, $spec) {
		2678	my ($k, $v) = split /\s+/, $_, 2;
		2679
		2680	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2681	}
		2682
		2683	$rmp
		2684	}
		2685
		2686	sub prepare_random_map {
		2687	my ($exit) = @_;
		2688
		2689	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2690
		2691	# all this does is basically replace the /! path by
		2692	# a new random map path (?random/...) with a seed
		2693	# that depends on the exit object
		2694
		2695	my $rmp = parse_random_map_params $exit->msg;
		2696
		2697	if ($exit->map) {
		2698	$rmp->{region} = $exit->region->name;
		2699	$rmp->{origin_map} = $exit->map->path;
		2700	$rmp->{origin_x} = $exit->x;
		2701	$rmp->{origin_y} = $exit->y;
		2702	}
		2703
		2704	$rmp->{random_seed} ||= $exit->random_seed;
		2705
		2706	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
		2707	my $md5 = Digest::MD5::md5_hex $data;
		2708	my $meta = "$RANDOMDIR/$md5.meta";
		2709
		2710	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2711	aio_write $fh, 0, (length $data), $data, 0;
		2712	undef $fh;
		2713	aio_rename "$meta~", $meta;
		2714
		2715	$exit->slaying ("?random/$md5");
		2716	$exit->msg (undef);
		2717	}
		2718	}
		2719
		2720	sub cf::object::player::enter_exit {
		2721	my ($self, $exit) = @_;
		2722
		2723	return unless $self->type == cf::PLAYER;
		2724
		2725	if ($exit->slaying eq "/!") {
		2726	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2727	# the problem is that $exit might not survive long enough
		2728	# so it needs to be done right now, right here
		2729	cf::sync_job { prepare_random_map $exit };
		2730	}
		2731
		2732	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2733	my $hp = $exit->stats->hp;
		2734	my $sp = $exit->stats->sp;
		2735
		2736	$self->enter_link;
		2737
		2738	# if exit is damned, update players death & WoR home-position
		2739	$self->contr->savebed ($slaying, $hp, $sp)
		2740	if $exit->flag (FLAG_DAMNED);
		2741
		2742	(async {
		2743	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2744
		2745	$self->deactivate_recursive; # just to be sure
		2746	unless (eval {
		2747	$self->goto ($slaying, $hp, $sp);
		2748
		2749	1;
		2750	}) {
		2751	$self->message ("Something went wrong deep within the crossfire server. "
		2752	. "I'll try to bring you back to the map you were before. "
		2753	. "Please report this to the dungeon master!",
		2754	cf::NDI_UNIQUE | cf::NDI_RED);
		2755
		2756	warn "ERROR in enter_exit: $@";
		2757	$self->leave_link;
		2758	}
		2759	})->prio (1);
		2760	}
		2761
943	=head3 cf::client	2762	=head3 cf::client
944		2763
945	=over 4	2764	=over 4
946		2765
947	=item $client->send_drawinfo ($text, $flags)	2766	=item $client->send_drawinfo ($text, $flags)
…		…
953		2772
954	sub cf::client::send_drawinfo {	2773	sub cf::client::send_drawinfo {
955	my ($self, $text, $flags) = @_;	2774	my ($self, $text, $flags) = @_;
956		2775
957	utf8::encode $text;	2776	utf8::encode $text;
958	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2777	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
959	}	2778	}
960		2779
		2780	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2781
		2782	Send a drawinfo or msg packet to the client, formatting the msg for the
		2783	client if neccessary. C<$type> should be a string identifying the type of
		2784	the message, with C<log> being the default. If C<$color> is negative, suppress
		2785	the message unless the client supports the msg packet.
		2786
		2787	=cut
		2788
		2789	# non-persistent channels (usually the info channel)
		2790	our %CHANNEL = (
		2791	"c/identify" => {
		2792	id => "infobox",
		2793	title => "Identify",
		2794	reply => undef,
		2795	tooltip => "Items recently identified",
		2796	},
		2797	"c/examine" => {
		2798	id => "infobox",
		2799	title => "Examine",
		2800	reply => undef,
		2801	tooltip => "Signs and other items you examined",
		2802	},
		2803	"c/book" => {
		2804	id => "infobox",
		2805	title => "Book",
		2806	reply => undef,
		2807	tooltip => "The contents of a note or book",
		2808	},
		2809	"c/lookat" => {
		2810	id => "infobox",
		2811	title => "Look",
		2812	reply => undef,
		2813	tooltip => "What you saw there",
		2814	},
		2815	"c/who" => {
		2816	id => "infobox",
		2817	title => "Players",
		2818	reply => undef,
		2819	tooltip => "Shows players who are currently online",
		2820	},
		2821	"c/body" => {
		2822	id => "infobox",
		2823	title => "Body Parts",
		2824	reply => undef,
		2825	tooltip => "Shows which body parts you posess and are available",
		2826	},
		2827	"c/uptime" => {
		2828	id => "infobox",
		2829	title => "Uptime",
		2830	reply => undef,
		2831	tooltip => "How long the server has been running since last restart",
		2832	},
		2833	"c/mapinfo" => {
		2834	id => "infobox",
		2835	title => "Map Info",
		2836	reply => undef,
		2837	tooltip => "Information related to the maps",
		2838	},
		2839	"c/party" => {
		2840	id => "party",
		2841	title => "Party",
		2842	reply => "gsay ",
		2843	tooltip => "Messages and chat related to your party",
		2844	},
		2845	);
		2846
		2847	sub cf::client::send_msg {
		2848	my ($self, $channel, $msg, $color, @extra) = @_;
		2849
		2850	$msg = $self->pl->expand_cfpod ($msg);
		2851
		2852	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2853
		2854	# check predefined channels, for the benefit of C
		2855	if ($CHANNEL{$channel}) {
		2856	$channel = $CHANNEL{$channel};
		2857
		2858	$self->ext_msg (channel_info => $channel)
		2859	if $self->can_msg;
		2860
		2861	$channel = $channel->{id};
		2862
		2863	} elsif (ref $channel) {
		2864	# send meta info to client, if not yet sent
		2865	unless (exists $self->{channel}{$channel->{id}}) {
		2866	$self->{channel}{$channel->{id}} = $channel;
		2867	$self->ext_msg (channel_info => $channel)
		2868	if $self->can_msg;
		2869	}
		2870
		2871	$channel = $channel->{id};
		2872	}
		2873
		2874	return unless @extra || length $msg;
		2875
		2876	if ($self->can_msg) {
		2877	# default colour, mask it out
		2878	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2879	if $color & cf::NDI_DEF;
		2880
		2881	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2882	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2883	} else {
		2884	if ($color >= 0) {
		2885	# replace some tags by gcfclient-compatible ones
		2886	for ($msg) {
		2887	1 while
		2888	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2889	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2890	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2891	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2892	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2893	}
		2894
		2895	$color &= cf::NDI_COLOR_MASK;
		2896
		2897	utf8::encode $msg;
		2898
		2899	if (0 && $msg =~ /\[/) {
		2900	# COMMAND/INFO
		2901	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2902	} else {
		2903	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2904	$self->send_packet ("drawinfo $color $msg")
		2905	}
		2906	}
		2907	}
		2908	}
		2909
		2910	=item $client->ext_msg ($type, @msg)
		2911
		2912	Sends an ext event to the client.
		2913
		2914	=cut
		2915
		2916	sub cf::client::ext_msg($$@) {
		2917	my ($self, $type, @msg) = @_;
		2918
		2919	if ($self->extcmd == 2) {
		2920	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2921	} elsif ($self->extcmd == 1) { # TODO: remove
		2922	push @msg, msgtype => "event_$type";
		2923	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2924	}
		2925	}
		2926
		2927	=item $client->ext_reply ($msgid, @msg)
		2928
		2929	Sends an ext reply to the client.
		2930
		2931	=cut
		2932
		2933	sub cf::client::ext_reply($$@) {
		2934	my ($self, $id, @msg) = @_;
		2935
		2936	if ($self->extcmd == 2) {
		2937	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2938	} elsif ($self->extcmd == 1) {
		2939	#TODO: version 1, remove
		2940	unshift @msg, msgtype => "reply", msgid => $id;
		2941	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2942	}
		2943	}
961		2944
962	=item $success = $client->query ($flags, "text", \&cb)	2945	=item $success = $client->query ($flags, "text", \&cb)
963		2946
964	Queues a query to the client, calling the given callback with	2947	Queues a query to the client, calling the given callback with
965	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2948	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
966	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2949	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
967		2950
968	Queries can fail, so check the return code. Or don't, as queries will become	2951	Queries can fail, so check the return code. Or don't, as queries will
969	reliable at some point in the future.	2952	become reliable at some point in the future.
970		2953
971	=cut	2954	=cut
972		2955
973	sub cf::client::query {	2956	sub cf::client::query {
974	my ($self, $flags, $text, $cb) = @_;	2957	my ($self, $flags, $text, $cb) = @_;
…		…
982	utf8::encode $text;	2965	utf8::encode $text;
983	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2966	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
984		2967
985	$self->send_packet ($self->{query_queue}[0][0])	2968	$self->send_packet ($self->{query_queue}[0][0])
986	if @{ $self->{query_queue} } == 1;	2969	if @{ $self->{query_queue} } == 1;
		2970
		2971	1
987	}	2972	}
988		2973
989	cf::client->attach (	2974	cf::client->attach (
		2975	on_connect => sub {
		2976	my ($ns) = @_;
		2977
		2978	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2979	},
990	on_reply => sub {	2980	on_reply => sub {
991	my ($ns, $msg) = @_;	2981	my ($ns, $msg) = @_;
992		2982
993	# this weird shuffling is so that direct followup queries	2983	# this weird shuffling is so that direct followup queries
994	# get handled first	2984	# get handled first
995	my $queue = delete $ns->{query_queue};	2985	my $queue = delete $ns->{query_queue}
		2986	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		2987
997	(shift @$queue)->[1]->($msg);	2988	(shift @$queue)->[1]->($msg);
		2989	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
998		2990
999	push @{ $ns->{query_queue} }, @$queue;	2991	push @{ $ns->{query_queue} }, @$queue;
1000		2992
1001	if (@{ $ns->{query_queue} } == @$queue) {	2993	if (@{ $ns->{query_queue} } == @$queue) {
1002	if (@$queue) {	2994	if (@$queue) {
…		…
1004	} else {	2996	} else {
1005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2997	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1006	}	2998	}
1007	}	2999	}
1008	},	3000	},
		3001	on_exticmd => sub {
		3002	my ($ns, $buf) = @_;
		3003
		3004	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3005
		3006	if (ref $msg) {
		3007	my ($type, $reply, @payload) =
		3008	"ARRAY" eq ref $msg
		3009	? @$msg
		3010	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3011
		3012	my @reply;
		3013
		3014	if (my $cb = $EXTICMD{$type}) {
		3015	@reply = $cb->($ns, @payload);
		3016	}
		3017
		3018	$ns->ext_reply ($reply, @reply)
		3019	if $reply;
		3020
		3021	} else {
		3022	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3023	}
		3024
		3025	cf::override;
		3026	},
1009	);	3027	);
1010		3028
1011	=item $client->coro (\&cb)	3029	=item $client->async (\&cb)
1012		3030
1013	Create a new coroutine, running the specified callback. The coroutine will	3031	Create a new coroutine, running the specified callback. The coroutine will
1014	be automatically cancelled when the client gets destroyed (e.g. on logout,	3032	be automatically cancelled when the client gets destroyed (e.g. on logout,
1015	or loss of connection).	3033	or loss of connection).
1016		3034
1017	=cut	3035	=cut
1018		3036
1019	sub cf::client::coro {	3037	sub cf::client::async {
1020	my ($self, $cb) = @_;	3038	my ($self, $cb) = @_;
1021		3039
1022	my $coro; $coro = async {	3040	my $coro = &Coro::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		3041
1029	$coro->on_destroy (sub {	3042	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	3043	delete $self->{_coro}{$coro+0};
1031	});	3044	});
1032		3045
…		…
1059	our $safe = new Safe "safe";	3072	our $safe = new Safe "safe";
1060	our $safe_hole = new Safe::Hole;	3073	our $safe_hole = new Safe::Hole;
1061		3074
1062	$SIG{FPE} = 'IGNORE';	3075	$SIG{FPE} = 'IGNORE';
1063		3076
1064	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3077	$safe->permit_only (Opcode::opset qw(
		3078	:base_core :base_mem :base_orig :base_math
		3079	grepstart grepwhile mapstart mapwhile
		3080	sort time
		3081	));
1065		3082
1066	# here we export the classes and methods available to script code	3083	# here we export the classes and methods available to script code
1067		3084
1068	=pod	3085	=pod
1069		3086
1070	The following fucntions and emthods are available within a safe environment:	3087	The following functions and methods are available within a safe environment:
1071		3088
1072	cf::object contr pay_amount pay_player map	3089	cf::object
		3090	contr pay_amount pay_player map x y force_find force_add destroy
		3091	insert remove name archname title slaying race decrease split
		3092
1073	cf::object::player player	3093	cf::object::player
1074	cf::player peaceful	3094	player
1075	cf::map trigger	3095
		3096	cf::player
		3097	peaceful
		3098
		3099	cf::map
		3100	trigger
1076		3101
1077	=cut	3102	=cut
1078		3103
1079	for (	3104	for (
1080	["cf::object" => qw(contr pay_amount pay_player map)],	3105	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3106	insert remove inv name archname title slaying race
		3107	decrease split destroy)],
1081	["cf::object::player" => qw(player)],	3108	["cf::object::player" => qw(player)],
1082	["cf::player" => qw(peaceful)],	3109	["cf::player" => qw(peaceful)],
1083	["cf::map" => qw(trigger)],	3110	["cf::map" => qw(trigger)],
1084	) {	3111	) {
1085	no strict 'refs';	3112	no strict 'refs';
…		…
1156	=back	3183	=back
1157		3184
1158	=cut	3185	=cut
1159		3186
1160	#############################################################################	3187	#############################################################################
		3188	# the server's init and main functions
1161		3189
1162	=head2 EXTENSION DATABASE SUPPORT	3190	sub load_facedata($) {
		3191	my ($path) = @_;
1163		3192
1164	Crossfire maintains a very simple database for extension use. It can	3193	# HACK to clear player env face cache, we need some signal framework
1165	currently store anything that can be serialised using Storable, which	3194	# for this (global event?)
1166	excludes objects.	3195	%ext::player_env::MUSIC_FACE_CACHE = ();
1167		3196
1168	The parameter C<$family> should best start with the name of the extension	3197	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1169	using it, it should be unique.
1170		3198
1171	=over 4	3199	warn "loading facedata from $path\n";
1172		3200
1173	=item $hashref = cf::db_get $family	3201	my $facedata;
		3202	0 < aio_load $path, $facedata
		3203	or die "$path: $!";
1174		3204
1175	Return a hashref for use by the extension C<$family>, which can be	3205	$facedata = Coro::Storable::thaw $facedata;
1176	modified. After modifications, you have to call C<cf::db_dirty> or
1177	C<cf::db_sync>.
1178		3206
1179	=item $value = cf::db_get $family => $key	3207	$facedata->{version} == 2
		3208	or cf::cleanup "$path: version mismatch, cannot proceed.";
1180		3209
1181	Returns a single value from the database	3210	# patch in the exptable
1182		3211	$facedata->{resource}{"res/exp_table"} = {
1183	=item cf::db_put $family => $hashref	3212	type => FT_RSRC,
1184		3213	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1185	Stores the given family hashref into the database. Updates are delayed, if
1186	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1187
1188	=item cf::db_put $family => $key => $value
1189
1190	Stores the given C<$value> in the family hash. Updates are delayed, if you
1191	want the data to be synced to disk immediately, use C<cf::db_sync>.
1192
1193	=item cf::db_dirty
1194
1195	Marks the database as dirty, to be updated at a later time.
1196
1197	=item cf::db_sync
1198
1199	Immediately write the database to disk I<if it is dirty>.
1200
1201	=cut
1202
1203	our $DB;
1204
1205	{
1206	my $path = cf::localdir . "/database.pst";
1207
1208	sub db_load() {
1209	warn "loading database $path\n";#d# remove later
1210	$DB = stat $path ? Storable::retrieve $path : { };
1211	}
1212
1213	my $pid;
1214
1215	sub db_save() {
1216	warn "saving database $path\n";#d# remove later
1217	waitpid $pid, 0 if $pid;
1218	if (0 == ($pid = fork)) {
1219	$DB->{_meta}{version} = 1;
1220	Storable::nstore $DB, "$path~";
1221	rename "$path~", $path;
1222	cf::_exit 0 if defined $pid;
1223	}
1224	}
1225
1226	my $dirty;
1227
1228	sub db_sync() {
1229	db_save if $dirty;
1230	undef $dirty;
1231	}
1232
1233	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1234	db_sync;
1235	});	3214	};
		3215	cf::cede_to_tick;
1236		3216
1237	sub db_dirty() {
1238	$dirty = 1;
1239	$idle->start;
1240	}	3217	{
		3218	my $faces = $facedata->{faceinfo};
1241		3219
1242	sub db_get($;$) {	3220	while (my ($face, $info) = each %$faces) {
1243	@_ >= 2	3221	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1244	? $DB->{$_[0]}{$_[1]}
1245	: ($DB->{$_[0]} ||= { })
1246	}
1247		3222
1248	sub db_put($$;$) {	3223	cf::face::set_visibility $idx, $info->{visibility};
1249	if (@_ >= 3) {	3224	cf::face::set_magicmap $idx, $info->{magicmap};
1250	$DB->{$_[0]}{$_[1]} = $_[2];	3225	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1251	} else {	3226	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1252	$DB->{$_[0]} = $_[1];
1253	}
1254	db_dirty;
1255	}
1256		3227
1257	cf::global->attach (	3228	cf::cede_to_tick;
1258	prio => 10000,
1259	on_cleanup => sub {
1260	db_sync;
1261	},	3229	}
		3230
		3231	while (my ($face, $info) = each %$faces) {
		3232	next unless $info->{smooth};
		3233
		3234	my $idx = cf::face::find $face
		3235	or next;
		3236
		3237	if (my $smooth = cf::face::find $info->{smooth}) {
		3238	cf::face::set_smooth $idx, $smooth;
		3239	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3240	} else {
		3241	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3242	}
		3243
		3244	cf::cede_to_tick;
		3245	}
		3246	}
		3247
		3248	{
		3249	my $anims = $facedata->{animinfo};
		3250
		3251	while (my ($anim, $info) = each %$anims) {
		3252	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3253	cf::cede_to_tick;
		3254	}
		3255
		3256	cf::anim::invalidate_all; # d'oh
		3257	}
		3258
		3259	{
		3260	# TODO: for gcfclient pleasure, we should give resources
		3261	# that gcfclient doesn't grok a >10000 face index.
		3262	my $res = $facedata->{resource};
		3263
		3264	while (my ($name, $info) = each %$res) {
		3265	if (defined $info->{type}) {
		3266	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3267	my $data;
		3268
		3269	if ($info->{type} & 1) {
		3270	# prepend meta info
		3271
		3272	my $meta = $enc->encode ({
		3273	name => $name,
		3274	%{ $info->{meta} || {} },
		3275	});
		3276
		3277	$data = pack "(w/a*)*", $meta, $info->{data};
		3278	} else {
		3279	$data = $info->{data};
		3280	}
		3281
		3282	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3283	cf::face::set_type $idx, $info->{type};
		3284	} else {
		3285	$RESOURCE{$name} = $info;
		3286	}
		3287
		3288	cf::cede_to_tick;
		3289	}
		3290	}
		3291
		3292	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3293
		3294	1
		3295	}
		3296
		3297	cf::global->attach (on_resource_update => sub {
		3298	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3299	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3300
		3301	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3302	my $sound = $soundconf->{compat}[$_]
		3303	or next;
		3304
		3305	my $face = cf::face::find "sound/$sound->[1]";
		3306	cf::sound::set $sound->[0] => $face;
		3307	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3308	}
		3309
		3310	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3311	my $face = cf::face::find "sound/$v";
		3312	cf::sound::set $k => $face;
		3313	}
		3314	}
		3315	});
		3316
		3317	register_exticmd fx_want => sub {
		3318	my ($ns, $want) = @_;
		3319
		3320	while (my ($k, $v) = each %$want) {
		3321	$ns->fx_want ($k, $v);
		3322	}
		3323	};
		3324
		3325	sub load_resource_file($) {
		3326	my $guard = lock_acquire "load_resource_file";
		3327
		3328	my $status = load_resource_file_ $_[0];
		3329	get_slot 0.1, 100;
		3330	cf::arch::commit_load;
		3331
		3332	$status
		3333	}
		3334
		3335	sub reload_regions {
		3336	# HACK to clear player env face cache, we need some signal framework
		3337	# for this (global event?)
		3338	%ext::player_env::MUSIC_FACE_CACHE = ();
		3339
		3340	load_resource_file "$MAPDIR/regions"
		3341	or die "unable to load regions file\n";
		3342
		3343	for (cf::region::list) {
		3344	$_->{match} = qr/$_->{match}/
		3345	if exists $_->{match};
		3346	}
		3347	}
		3348
		3349	sub reload_facedata {
		3350	load_facedata "$DATADIR/facedata"
		3351	or die "unable to load facedata\n";
		3352	}
		3353
		3354	sub reload_archetypes {
		3355	load_resource_file "$DATADIR/archetypes"
		3356	or die "unable to load archetypes\n";
		3357	}
		3358
		3359	sub reload_treasures {
		3360	load_resource_file "$DATADIR/treasures"
		3361	or die "unable to load treasurelists\n";
		3362	}
		3363
		3364	sub reload_resources {
		3365	warn "reloading resource files...\n";
		3366
		3367	reload_facedata;
		3368	reload_archetypes;
		3369	reload_regions;
		3370	reload_treasures;
		3371
		3372	warn "finished reloading resource files\n";
		3373	}
		3374
		3375	sub init {
		3376	my $guard = freeze_mainloop;
		3377
		3378	reload_resources;
		3379	}
		3380
		3381	sub reload_config {
		3382	open my $fh, "<:utf8", "$CONFDIR/config"
		3383	or return;
		3384
		3385	local $/;
		3386	*CFG = YAML::Load <$fh>;
		3387
		3388	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3389
		3390	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3391	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3392
		3393	if (exists $CFG{mlockall}) {
		3394	eval {
		3395	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3396	and die "WARNING: m(un)lockall failed: $!\n";
		3397	};
		3398	warn $@ if $@;
		3399	}
		3400	}
		3401
		3402	sub main {
		3403	# we must not ever block the main coroutine
		3404	local $Coro::idle = sub {
		3405	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3406	(async {
		3407	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3408	EV::loop EV::LOOP_ONESHOT;
		3409	})->prio (Coro::PRIO_MAX);
1262	);	3410	};
		3411
		3412	{
		3413	my $guard = freeze_mainloop;
		3414	reload_config;
		3415	db_init;
		3416	load_extensions;
		3417
		3418	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3419	evthread_start IO::AIO::poll_fileno;
		3420	}
		3421
		3422	EV::loop;
1263	}	3423	}
1264		3424
1265	#############################################################################	3425	#############################################################################
1266	# the server's main()	3426	# initialisation and cleanup
1267		3427
1268	sub cfg_load {	3428	# install some emergency cleanup handlers
1269	open my $fh, "<:utf8", cf::confdir . "/config"	3429	BEGIN {
		3430	our %SIGWATCHER = ();
		3431	for my $signal (qw(INT HUP TERM)) {
		3432	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3433	cf::cleanup "SIG$signal";
		3434	};
		3435	}
		3436	}
		3437
		3438	sub write_runtime_sync {
		3439	my $runtime = "$LOCALDIR/runtime";
		3440
		3441	# first touch the runtime file to show we are still running:
		3442	# the fsync below can take a very very long time.
		3443
		3444	IO::AIO::aio_utime $runtime, undef, undef;
		3445
		3446	my $guard = cf::lock_acquire "write_runtime";
		3447
		3448	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
1270	or return;	3449	or return;
1271		3450
1272	local $/;	3451	my $value = $cf::RUNTIME + 90 + 10;
1273	*CFG = YAML::Syck::Load <$fh>;	3452	# 10 is the runtime save interval, for a monotonic clock
1274	}	3453	# 60 allows for the watchdog to kill the server.
1275		3454
1276	sub main {	3455	(aio_write $fh, 0, (length $value), $value, 0) <= 0
1277	cfg_load;	3456	and return;
1278	db_load;
1279	load_extensions;
1280	Event::loop;
1281	}
1282		3457
1283	#############################################################################	3458	# always fsync - this file is important
1284	# initialisation	3459	aio_fsync $fh
		3460	and return;
1285		3461
1286	sub perl_reload() {	3462	# touch it again to show we are up-to-date
		3463	aio_utime $fh, undef, undef;
		3464
		3465	close $fh
		3466	or return;
		3467
		3468	aio_rename "$runtime~", $runtime
		3469	and return;
		3470
		3471	warn "runtime file written.\n";
		3472
		3473	1
		3474	}
		3475
		3476	our $uuid_lock;
		3477	our $uuid_skip;
		3478
		3479	sub write_uuid_sync($) {
		3480	$uuid_skip ||= $_[0];
		3481
		3482	return if $uuid_lock;
		3483	local $uuid_lock = 1;
		3484
		3485	my $uuid = "$LOCALDIR/uuid";
		3486
		3487	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3488	or return;
		3489
		3490	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3491	$uuid_skip = 0;
		3492
		3493	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3494	and return;
		3495
		3496	# always fsync - this file is important
		3497	aio_fsync $fh
		3498	and return;
		3499
		3500	close $fh
		3501	or return;
		3502
		3503	aio_rename "$uuid~", $uuid
		3504	and return;
		3505
		3506	warn "uuid file written ($value).\n";
		3507
		3508	1
		3509
		3510	}
		3511
		3512	sub write_uuid($$) {
		3513	my ($skip, $sync) = @_;
		3514
		3515	$sync ? write_uuid_sync $skip
		3516	: async { write_uuid_sync $skip };
		3517	}
		3518
		3519	sub emergency_save() {
		3520	my $freeze_guard = cf::freeze_mainloop;
		3521
		3522	warn "enter emergency perl save\n";
		3523
		3524	cf::sync_job {
		3525	# use a peculiar iteration method to avoid tripping on perl
		3526	# refcount bugs in for. also avoids problems with players
		3527	# and maps saved/destroyed asynchronously.
		3528	warn "begin emergency player save\n";
		3529	for my $login (keys %cf::PLAYER) {
		3530	my $pl = $cf::PLAYER{$login} or next;
		3531	$pl->valid or next;
		3532	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3533	$pl->save;
		3534	}
		3535	warn "end emergency player save\n";
		3536
		3537	warn "begin emergency map save\n";
		3538	for my $path (keys %cf::MAP) {
		3539	my $map = $cf::MAP{$path} or next;
		3540	$map->valid or next;
		3541	$map->save;
		3542	}
		3543	warn "end emergency map save\n";
		3544
		3545	warn "begin emergency database checkpoint\n";
		3546	BDB::db_env_txn_checkpoint $DB_ENV;
		3547	warn "end emergency database checkpoint\n";
		3548
		3549	warn "begin write uuid\n";
		3550	write_uuid_sync 1;
		3551	warn "end write uuid\n";
		3552	};
		3553
		3554	warn "leave emergency perl save\n";
		3555	}
		3556
		3557	sub post_cleanup {
		3558	my ($make_core) = @_;
		3559
		3560	warn Carp::longmess "post_cleanup backtrace"
		3561	if $make_core;
		3562	}
		3563
		3564	sub do_reload_perl() {
1287	# can/must only be called in main	3565	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	3566	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	3567	warn "can only reload from main coroutine";
1290	return;	3568	return;
1291	}	3569	}
1292		3570
1293	warn "reloading...";	3571	warn "reloading...";
1294		3572
1295	local $FREEZE = 1;	3573	warn "entering sync_job";
		3574
		3575	cf::sync_job {
		3576	cf::write_runtime_sync; # external watchdog should not bark
1296	cf::emergency_save;	3577	cf::emergency_save;
		3578	cf::write_runtime_sync; # external watchdog should not bark
1297		3579
1298	eval {	3580	warn "syncing database to disk";
		3581	BDB::db_env_txn_checkpoint $DB_ENV;
		3582
1299	# if anything goes wrong in here, we should simply crash as we already saved	3583	# if anything goes wrong in here, we should simply crash as we already saved
1300		3584
1301	# cancel all watchers	3585	warn "flushing outstanding aio requests";
1302	for (Event::all_watchers) {	3586	for (;;) {
1303	$_->cancel if $_->data & WF_AUTOCANCEL;	3587	BDB::flush;
		3588	IO::AIO::flush;
		3589	Coro::cede_notself;
		3590	last unless IO::AIO::nreqs || BDB::nreqs;
		3591	warn "iterate...";
1304	}	3592	}
1305		3593
		3594	++$RELOAD;
		3595
1306	# cancel all extension coros	3596	warn "cancelling all extension coros";
1307	$_->cancel for values %EXT_CORO;	3597	$_->cancel for values %EXT_CORO;
1308	%EXT_CORO = ();	3598	%EXT_CORO = ();
1309		3599
1310	# unload all extensions	3600	warn "removing commands";
1311	for (@exts) {	3601	%COMMAND = ();
		3602
		3603	warn "removing ext/exti commands";
		3604	%EXTCMD = ();
		3605	%EXTICMD = ();
		3606
		3607	warn "unloading/nuking all extensions";
		3608	for my $pkg (@EXTS) {
1312	warn "unloading <$_>";	3609	warn "... unloading $pkg";
1313	unload_extension $_;	3610
		3611	if (my $cb = $pkg->can ("unload")) {
		3612	eval {
		3613	$cb->($pkg);
		3614	1
		3615	} or warn "$pkg unloaded, but with errors: $@";
1314	}	3616	}
1315		3617
		3618	warn "... nuking $pkg";
		3619	Symbol::delete_package $pkg;
		3620	}
		3621
1316	# unload all modules loaded from $LIBDIR	3622	warn "unloading all perl modules loaded from $LIBDIR";
1317	while (my ($k, $v) = each %INC) {	3623	while (my ($k, $v) = each %INC) {
1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3624	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1319		3625
1320	warn "removing <$k>";	3626	warn "... unloading $k";
1321	delete $INC{$k};	3627	delete $INC{$k};
1322		3628
1323	$k =~ s/\.pm$//;	3629	$k =~ s/\.pm$//;
1324	$k =~ s/\//::/g;	3630	$k =~ s/\//::/g;
1325		3631
…		…
1328	}	3634	}
1329		3635
1330	Symbol::delete_package $k;	3636	Symbol::delete_package $k;
1331	}	3637	}
1332		3638
1333	# sync database to disk
1334	cf::db_sync;
1335	IO::AIO::flush;
1336
1337	# get rid of safe::, as good as possible	3639	warn "getting rid of safe::, as good as possible";
1338	Symbol::delete_package "safe::$_"	3640	Symbol::delete_package "safe::$_"
1339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3641	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1340		3642
1341	# remove register_script_function callbacks
1342	# TODO
1343
1344	# unload cf.pm "a bit"	3643	warn "unloading cf.pm \"a bit\"";
1345	delete $INC{"cf.pm"};	3644	delete $INC{"cf.pm"};
		3645	delete $INC{"cf/pod.pm"};
1346		3646
1347	# don't, removes xs symbols, too,	3647	# don't, removes xs symbols, too,
1348	# and global variables created in xs	3648	# and global variables created in xs
1349	#Symbol::delete_package __PACKAGE__;	3649	#Symbol::delete_package __PACKAGE__;
1350		3650
1351	# reload cf.pm	3651	warn "unload completed, starting to reload now";
		3652
1352	warn "reloading cf.pm";	3653	warn "reloading cf.pm";
1353	require cf;	3654	require cf;
1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3655	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1355		3656
1356	# load config and database again	3657	warn "loading config and database again";
1357	cf::cfg_load;	3658	cf::reload_config;
1358	cf::db_load;
1359		3659
1360	# load extensions
1361	warn "load extensions";	3660	warn "loading extensions";
1362	cf::load_extensions;	3661	cf::load_extensions;
1363		3662
1364	# reattach attachments to objects	3663	warn "reattaching attachments to objects/players";
1365	warn "reattach";	3664	_global_reattach; # objects, sockets
1366	_global_reattach;	3665	warn "reattaching attachments to maps";
		3666	reattach $_ for values %MAP;
		3667	warn "reattaching attachments to players";
		3668	reattach $_ for values %PLAYER;
		3669
		3670	warn "leaving sync_job";
		3671
		3672	1
		3673	} or do {
		3674	warn $@;
		3675	cf::cleanup "error while reloading, exiting.";
1367	};	3676	};
1368		3677
1369	if ($@) {	3678	warn "reloaded";
1370	warn $@;
1371	warn "error while reloading, exiting.";
1372	exit 1;
1373	}
1374
1375	warn "reloaded successfully";
1376	};	3679	};
1377		3680
1378	register "<global>", __PACKAGE__;	3681	our $RELOAD_WATCHER; # used only during reload
1379		3682
		3683	sub reload_perl() {
		3684	# doing reload synchronously and two reloads happen back-to-back,
		3685	# coro crashes during coro_state_free->destroy here.
		3686
		3687	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3688	do_reload_perl;
		3689	undef $RELOAD_WATCHER;
		3690	};
		3691	}
		3692
1380	register_command "perl-reload" => sub {	3693	register_command "reload" => sub {
1381	my ($who, $arg) = @_;	3694	my ($who, $arg) = @_;
1382		3695
1383	if ($who->flag (FLAG_WIZ)) {	3696	if ($who->flag (FLAG_WIZ)) {
1384	$who->message ("start of reload.");
1385	perl_reload;
1386	$who->message ("end of reload.");	3697	$who->message ("reloading server.");
		3698	async {
		3699	$Coro::current->{desc} = "perl_reload";
		3700	reload_perl;
		3701	};
1387	}	3702	}
1388	};	3703	};
1389		3704
1390	unshift @INC, $LIBDIR;	3705	unshift @INC, $LIBDIR;
1391		3706
1392	$TICK_WATCHER = Event->timer (	3707	my $bug_warning = 0;
1393	reentrant => 0,	3708
1394	prio => 0,	3709	our @WAIT_FOR_TICK;
1395	at => $NEXT_TICK || $TICK,	3710	our @WAIT_FOR_TICK_BEGIN;
1396	data => WF_AUTOCANCEL,	3711
1397	cb => sub {	3712	sub wait_for_tick {
1398	unless ($FREEZE) {	3713	return if tick_inhibit || $Coro::current == $Coro::main;
		3714
		3715	my $signal = new Coro::Signal;
		3716	push @WAIT_FOR_TICK, $signal;
		3717	$signal->wait;
		3718	}
		3719
		3720	sub wait_for_tick_begin {
		3721	return if tick_inhibit || $Coro::current == $Coro::main;
		3722
		3723	my $signal = new Coro::Signal;
		3724	push @WAIT_FOR_TICK_BEGIN, $signal;
		3725	$signal->wait;
		3726	}
		3727
		3728	sub tick {
		3729	if ($Coro::current != $Coro::main) {
		3730	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3731	unless ++$bug_warning > 10;
		3732	return;
		3733	}
		3734
1399	cf::server_tick; # one server iteration	3735	cf::server_tick; # one server iteration
1400	$RUNTIME += $TICK;	3736
		3737	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3738	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3739	Coro::async_pool {
		3740	$Coro::current->{desc} = "runtime saver";
		3741	write_runtime_sync
		3742	or warn "ERROR: unable to write runtime file: $!";
1401	}	3743	};
1402
1403	$NEXT_TICK += $TICK;
1404
1405	# if we are delayed by four ticks or more, skip them all
1406	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1407
1408	$TICK_WATCHER->at ($NEXT_TICK);
1409	$TICK_WATCHER->start;
1410	},	3744	}
1411	);
1412		3745
		3746	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3747	$sig->send;
		3748	}
		3749	while (my $sig = shift @WAIT_FOR_TICK) {
		3750	$sig->send;
		3751	}
		3752
		3753	$LOAD = ($NOW - $TICK_START) / $TICK;
		3754	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3755
		3756	if (0) {
		3757	if ($NEXT_TICK) {
		3758	my $jitter = $TICK_START - $NEXT_TICK;
		3759	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3760	warn "jitter $JITTER\n";#d#
		3761	}
		3762	}
		3763	}
		3764
		3765	{
		3766	# configure BDB
		3767
		3768	BDB::min_parallel 8;
		3769	BDB::max_poll_reqs $TICK * 0.1;
		3770	$Coro::BDB::WATCHER->priority (1);
		3771
		3772	unless ($DB_ENV) {
		3773	$DB_ENV = BDB::db_env_create;
		3774	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3775	| BDB::LOG_AUTOREMOVE, 1);
		3776	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3777	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3778
		3779	cf::sync_job {
		3780	eval {
		3781	BDB::db_env_open
		3782	$DB_ENV,
		3783	$BDBDIR,
		3784	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3785	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3786	0666;
		3787
		3788	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3789	};
		3790
		3791	cf::cleanup "db_env_open(db): $@" if $@;
		3792	};
		3793	}
		3794
		3795	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3796	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3797	};
		3798	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3799	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3800	};
		3801	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3802	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3803	};
		3804	}
		3805
		3806	{
		3807	# configure IO::AIO
		3808
		3809	IO::AIO::min_parallel 8;
1413	IO::AIO::max_poll_time $TICK * 0.2;	3810	IO::AIO::max_poll_time $TICK * 0.1;
		3811	$Coro::AIO::WATCHER->priority (1);
		3812	}
1414		3813
1415	Event->io (fd => IO::AIO::poll_fileno,	3814	my $_log_backtrace;
1416	poll => 'r',
1417	prio => 5,
1418	data => WF_AUTOCANCEL,
1419	cb => \&IO::AIO::poll_cb);
1420		3815
1421	# we must not ever block the main coroutine	3816	sub _log_backtrace {
1422	$Coro::idle = sub {	3817	my ($msg, @addr) = @_;
1423	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3818
1424	warn "FATAL: Coro::idle was called, major BUG\n";	3819	$msg =~ s/\n//;
1425	(Coro::unblock_sub {	3820
1426	Event::one_event;	3821	# limit the # of concurrent backtraces
1427	})->();	3822	if ($_log_backtrace < 2) {
1428	};	3823	++$_log_backtrace;
		3824	async {
		3825	$Coro::current->{desc} = "abt $msg";
		3826
		3827	my @bt = fork_call {
		3828	@addr = map { sprintf "%x", $_ } @addr;
		3829	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3830	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3831	or die "addr2line: $!";
		3832
		3833	my @funcs;
		3834	my @res = <$fh>;
		3835	chomp for @res;
		3836	while (@res) {
		3837	my ($func, $line) = splice @res, 0, 2, ();
		3838	push @funcs, "[$func] $line";
		3839	}
		3840
		3841	@funcs
		3842	};
		3843
		3844	LOG llevInfo, "[ABT] $msg\n";
		3845	LOG llevInfo, "[ABT] $_\n" for @bt;
		3846	--$_log_backtrace;
		3847	};
		3848	} else {
		3849	LOG llevInfo, "[ABT] $msg\n";
		3850	LOG llevInfo, "[ABT] [suppressed]\n";
		3851	}
		3852	}
		3853
		3854	# load additional modules
		3855	use cf::pod;
		3856
		3857	END { cf::emergency_save }
1429		3858
1430	1	3859	1
1431		3860

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