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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.141 by root, Fri Jan 5 20:08:53 2007 UTC vs.
Revision 1.538 by root, Tue May 4 21:45:43 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# 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 Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
20	use Digest::MD5;	55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
21	use Fcntl;	58	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
24	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
25		64
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
27		66
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		71
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE; # unused
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	121	our $NEXT_TICK;
45	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
46		130
47	our %CFG;	131	our %CFG;
48		132
49	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
51		136
52	our %MAP; # all maps	137	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	138	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	139	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	140
		141	# used to convert map paths into valid unix filenames by replacing / by ∕
		142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
56		153
57	binmode STDOUT;	154	binmode STDOUT;
58	binmode STDERR;	155	binmode STDERR;
59		156
60	# read virtual server time, if available	157	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
65	}	162	}
66		163
67	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		165
73	# a special map that is always available	166	mkdir $_
74	our $LINK_MAP;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		168
75	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
		170
		171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
76		187
77	#############################################################################	188	#############################################################################
78		189
79	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
80		191
…		…
87	=item $cf::RUNTIME	198	=item $cf::RUNTIME
88		199
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	201	every server tick.
91		202
92	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		206
94	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
96		211
97	=item $cf::NOW	212	=item $cf::NOW
98		213
99	The time of the last (current) server tick.	214	The time of the last (current) server tick.
100		215
101	=item $cf::TICK	216	=item $cf::TICK
102		217
103	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
104		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
105	=item %cf::CFG	230	=item %cf::CFG
106		231
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	233	from wherever your confdir points to.
109		234
		235	=item cf::wait_for_tick, cf::wait_for_tick_begin
		236
		237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		238	returns directly I<after> the tick processing (and consequently, can only wake one process
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
		252
110	=back	253	=back
111		254
112	=cut	255	=cut
113		256
114	BEGIN {	257	sub error(@) { LOG llevError, join "", @_ }
115	*CORE::GLOBAL::warn = sub {	258	sub warn (@) { LOG llevWarn , join "", @_ }
		259	sub info (@) { LOG llevInfo , join "", @_ }
		260	sub debug(@) { LOG llevDebug, join "", @_ }
		261	sub trace(@) { LOG llevTrace, join "", @_ }
		262
		263	$Coro::State::WARNHOOK = sub {
116	my $msg = join "", @_;	264	my $msg = join "", @_;
117	utf8::encode $msg;
118		265
119	$msg .= "\n"	266	$msg .= "\n"
120	unless $msg =~ /\n$/;	267	unless $msg =~ /\n$/;
121		268
122	LOG llevError, "cfperl: $msg";	269	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
123	};	270
124	}	271	LOG llevWarn, $msg;
		272	};
		273
		274	$Coro::State::DIEHOOK = sub {
		275	return unless $^S eq 0; # "eq", not "=="
		276
		277	error Carp::longmess $_[0];
		278
		279	if (in_main) {#d#
		280	error "DIEHOOK called in main context, Coro bug?\n";#d#
		281	return;#d#
		282	}#d#
		283
		284	# kill coroutine otherwise
		285	Coro::terminate
		286	};
125		287
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	288	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	289	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	290	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	291	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	292	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		293	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	294	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		295
133	# we bless all objects into (empty) derived classes to force a method lookup	296	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	297	# within the Safe compartment.
135	for my $pkg (qw(	298	for my $pkg (qw(
136	cf::global cf::attachable	299	cf::global cf::attachable
137	cf::object cf::object::player	300	cf::object cf::object::player
138	cf::client cf::player	301	cf::client cf::player
139	cf::arch cf::living	302	cf::arch cf::living
		303	cf::map cf::mapspace
140	cf::map cf::party cf::region	304	cf::party cf::region
141	)) {	305	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	306	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	307	}
145		308
146	$Event::DIED = sub {	309	$EV::DIED = sub {
147	warn "error in event callback: @_";	310	Carp::cluck "error in event callback: @_";
148	};	311	};
149		312
150	my %ext_pkg;	313	#############################################################################
151	my @exts;
152	my @hook;
153		314
154	=head2 UTILITY FUNCTIONS	315	=head2 UTILITY FUNCTIONS
155		316
156	=over 4	317	=over 4
157		318
158	=cut	319	=item dumpval $ref
159		320
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	321	=cut
161		322
		323	sub dumpval {
		324	eval {
		325	local $SIG{__DIE__};
		326	my $d;
		327	if (1) {
		328	$d = new Data::Dumper([$_[0]], ["*var"]);
		329	$d->Terse(1);
		330	$d->Indent(2);
		331	$d->Quotekeys(0);
		332	$d->Useqq(1);
		333	#$d->Bless(...);
		334	$d->Seen($_[1]) if @_ > 1;
		335	$d = $d->Dump();
		336	}
		337	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		338	$d
		339	} || "[unable to dump $_[0]: '$@']";
		340	}
		341
162	=item $ref = cf::from_json $json	342	=item $ref = cf::decode_json $json
163		343
164	Converts a JSON string into the corresponding perl data structure.	344	Converts a JSON string into the corresponding perl data structure.
165		345
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	346	=item $json = cf::encode_json $ref
174		347
175	Converts a perl data structure into its JSON representation.	348	Converts a perl data structure into its JSON representation.
176		349
177	=cut	350	=cut
178		351
179	sub to_json($) {	352	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	353
181	JSON::Syck::Dump $_[0]	354	sub encode_json($) { $json_coder->encode ($_[0]) }
		355	sub decode_json($) { $json_coder->decode ($_[0]) }
		356
		357	=item cf::post_init { BLOCK }
		358
		359	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		360	but I<before> the server starts ticking again.
		361
		362	The cdoeblock will have a single boolean argument to indicate whether this
		363	is a reload or not.
		364
		365	=cut
		366
		367	sub post_init(&) {
		368	push @POST_INIT, shift;
182	}	369	}
183		370
184	=item cf::lock_wait $string	371	=item cf::lock_wait $string
185		372
186	Wait until the given lock is available. See cf::lock_acquire.	373	Wait until the given lock is available. See cf::lock_acquire.
187		374
188	=item my $lock = cf::lock_acquire $string	375	=item my $lock = cf::lock_acquire $string
189		376
190	Wait until the given lock is available and then acquires it and returns	377	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	378	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	379	for example when the coroutine gets canceled), the lock is automatically
193	returned.	380	returned.
194		381
		382	Locks are *not* recursive, locking from the same coro twice results in a
		383	deadlocked coro.
		384
195	Lock names should begin with a unique identifier (for example, cf::map::find	385	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	386	uses map_find and cf::map::load uses map_load).
197		387
198	=cut	388	=item $locked = cf::lock_active $string
199		389
200	our %LOCK;	390	Return true if the lock is currently active, i.e. somebody has locked it.
		391
		392	=cut
		393
		394	our $LOCKS = new Coro::SemaphoreSet;
201		395
202	sub lock_wait($) {	396	sub lock_wait($) {
203	my ($key) = @_;	397	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	398	}
211		399
212	sub lock_acquire($) {	400	sub lock_acquire($) {
213	my ($key) = @_;	401	$LOCKS->guard ($_[0])
		402	}
214		403
215	# wait, to be sure we are not locked	404	sub lock_active($) {
216	lock_wait $key;	405	$LOCKS->count ($_[0]) < 1
217
218	$LOCK{$key} = [];
219
220	Coro::guard {
221	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };
223	}
224	}	406	}
225		407
226	sub freeze_mainloop {	408	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	409	tick_inhibit_inc;
228		410
229	my $guard = Coro::guard { $TICK_WATCHER->start };	411	&Guard::guard (\&tick_inhibit_dec);
230	$TICK_WATCHER->stop;	412	}
231	$guard	413
		414	=item cf::periodic $interval, $cb
		415
		416	Like EV::periodic, but randomly selects a starting point so that the actions
		417	get spread over time.
		418
		419	=cut
		420
		421	sub periodic($$) {
		422	my ($interval, $cb) = @_;
		423
		424	my $start = rand List::Util::min 180, $interval;
		425
		426	EV::periodic $start, $interval, 0, $cb
		427	}
		428
		429	=item cf::get_slot $time[, $priority[, $name]]
		430
		431	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		432	This call blocks and returns only when you have at least C<$time> seconds
		433	of cpu time till the next tick. The slot is only valid till the next cede.
		434
		435	The optional C<$name> can be used to identify the job to run. It might be
		436	used for statistical purposes and should identify the same time-class.
		437
		438	Useful for short background jobs.
		439
		440	=cut
		441
		442	our @SLOT_QUEUE;
		443	our $SLOT_QUEUE;
		444	our $SLOT_DECAY = 0.9;
		445
		446	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		447	$SLOT_QUEUE = Coro::async {
		448	$Coro::current->desc ("timeslot manager");
		449
		450	my $signal = new Coro::Signal;
		451	my $busy;
		452
		453	while () {
		454	next_job:
		455
		456	my $avail = cf::till_tick;
		457
		458	for (0 .. $#SLOT_QUEUE) {
		459	if ($SLOT_QUEUE[$_][0] <= $avail) {
		460	$busy = 0;
		461	my $job = splice @SLOT_QUEUE, $_, 1, ();
		462	$job->[2]->send;
		463	Coro::cede;
		464	goto next_job;
		465	} else {
		466	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		467	}
		468	}
		469
		470	if (@SLOT_QUEUE) {
		471	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		472	push @cf::WAIT_FOR_TICK, $signal;
		473	$signal->wait;
		474	} else {
		475	$busy = 0;
		476	Coro::schedule;
		477	}
		478	}
		479	};
		480
		481	sub get_slot($;$$) {
		482	return if tick_inhibit || $Coro::current == $Coro::main;
		483
		484	my ($time, $pri, $name) = @_;
		485
		486	$time = clamp $time, 0.01, $TICK * .6;
		487
		488	my $sig = new Coro::Signal;
		489
		490	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		491	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		492	$SLOT_QUEUE->ready;
		493	$sig->wait;
232	}	494	}
233		495
234	=item cf::async { BLOCK }	496	=item cf::async { BLOCK }
235		497
236	Currently the same as Coro::async_pool, meaning you cannot use	498	Currently the same as Coro::async_pool, meaning you cannot use
…		…
241		503
242	BEGIN { *async = \&Coro::async_pool }	504	BEGIN { *async = \&Coro::async_pool }
243		505
244	=item cf::sync_job { BLOCK }	506	=item cf::sync_job { BLOCK }
245		507
246	The design of crossfire+ requires that the main coro ($Coro::main) is	508	The design of Deliantra requires that the main coroutine ($Coro::main)
247	always able to handle events or runnable, as crossfire+ is only partly	509	is always able to handle events or runnable, as Deliantra is only
248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	510	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		511	acceptable.
249		512
250	If it must be done, put the blocking parts into C<sync_job>. This will run	513	If it must be done, put the blocking parts into C<sync_job>. This will run
251	the given BLOCK in another coroutine while waiting for the result. The	514	the given BLOCK in another coroutine while waiting for the result. The
252	server will be frozen during this time, so the block should either finish	515	server will be frozen during this time, so the block should either finish
253	fast or be very important.	516	fast or be very important.
…		…
255	=cut	518	=cut
256		519
257	sub sync_job(&) {	520	sub sync_job(&) {
258	my ($job) = @_;	521	my ($job) = @_;
259		522
260	if ($Coro::current == $Coro::main) {	523	if (in_main) {
		524	my $time = AE::time;
		525
261	# this is the main coro, too bad, we have to block	526	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	527	# till the operation succeeds, freezing the server :/
263		528
264	# TODO: use suspend/resume instead	529	#LOG llevError, Carp::longmess "sync job";#d#
265	# (but this is cancel-safe)	530
266	my $freeze_guard = freeze_mainloop;	531	my $freeze_guard = freeze_mainloop;
267		532
268	my $busy = 1;	533	my $busy = 1;
269	my @res;	534	my @res;
270		535
271	(async {	536	(async {
		537	$Coro::current->desc ("sync job coro");
272	@res = eval { $job->() };	538	@res = eval { $job->() };
273	warn $@ if $@;	539	error $@ if $@;
274	undef $busy;	540	undef $busy;
275	})->prio (Coro::PRIO_MAX);	541	})->prio (Coro::PRIO_MAX);
276		542
277	while ($busy) {	543	while ($busy) {
278	Coro::cede or Event::one_event;	544	if (Coro::nready) {
		545	Coro::cede_notself;
		546	} else {
		547	EV::loop EV::LOOP_ONESHOT;
279	}	548	}
		549	}
		550
		551	my $time = AE::time - $time;
		552
		553	$TICK_START += $time; # do not account sync jobs to server load
280		554
281	wantarray ? @res : $res[0]	555	wantarray ? @res : $res[0]
282	} else {	556	} else {
283	# we are in another coroutine, how wonderful, everything just works	557	# we are in another coroutine, how wonderful, everything just works
284		558
…		…
286	}	560	}
287	}	561	}
288		562
289	=item $coro = cf::async_ext { BLOCK }	563	=item $coro = cf::async_ext { BLOCK }
290		564
291	Like async, but this coro is automcatially being canceled when the	565	Like async, but this coro is automatically being canceled when the
292	extension calling this is being unloaded.	566	extension calling this is being unloaded.
293		567
294	=cut	568	=cut
295		569
296	sub async_ext(&) {	570	sub async_ext(&) {
…		…
304	$EXT_CORO{$coro+0} = $coro;	578	$EXT_CORO{$coro+0} = $coro;
305		579
306	$coro	580	$coro
307	}	581	}
308		582
309	sub write_runtime {	583	=item fork_call { }, $args
310	my $runtime = cf::localdir . "/runtime";
311		584
312	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	585	Executes the given code block with the given arguments in a seperate
313	or return;	586	process, returning the results. Everything must be serialisable with
		587	Coro::Storable. May, of course, block. Note that the executed sub may
		588	never block itself or use any form of event handling.
314		589
315	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	590	=cut
316	(aio_write $fh, 0, (length $value), $value, 0) <= 0
317	and return;
318		591
319	aio_fsync $fh	592	sub fork_call(&@) {
320	and return;	593	my ($cb, @args) = @_;
321		594
322	close $fh	595	# we seemingly have to make a local copy of the whole thing,
323	or return;	596	# otherwise perl prematurely frees the stuff :/
		597	# TODO: investigate and fix (likely this will be rather laborious)
324		598
325	aio_rename "$runtime~", $runtime	599	my @res = Coro::Util::fork_eval {
326	and return;	600	reset_signals;
		601	&$cb
		602	}, @args;
327		603
		604	wantarray ? @res : $res[-1]
		605	}
		606
		607	sub objinfo {
328	1	608	(
		609	"counter value" => cf::object::object_count,
		610	"objects created" => cf::object::create_count,
		611	"objects destroyed" => cf::object::destroy_count,
		612	"freelist size" => cf::object::free_count,
		613	"allocated objects" => cf::object::objects_size,
		614	"active objects" => cf::object::actives_size,
		615	)
		616	}
		617
		618	=item $coin = coin_from_name $name
		619
		620	=cut
		621
		622	our %coin_alias = (
		623	"silver" => "silvercoin",
		624	"silvercoin" => "silvercoin",
		625	"silvercoins" => "silvercoin",
		626	"gold" => "goldcoin",
		627	"goldcoin" => "goldcoin",
		628	"goldcoins" => "goldcoin",
		629	"platinum" => "platinacoin",
		630	"platinumcoin" => "platinacoin",
		631	"platinumcoins" => "platinacoin",
		632	"platina" => "platinacoin",
		633	"platinacoin" => "platinacoin",
		634	"platinacoins" => "platinacoin",
		635	"royalty" => "royalty",
		636	"royalties" => "royalty",
		637	);
		638
		639	sub coin_from_name($) {
		640	$coin_alias{$_[0]}
		641	? cf::arch::find $coin_alias{$_[0]}
		642	: undef
		643	}
		644
		645	=item $value = cf::db_get $family => $key
		646
		647	Returns a single value from the environment database.
		648
		649	=item cf::db_put $family => $key => $value
		650
		651	Stores the given C<$value> in the family. It can currently store binary
		652	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		653
		654	=item $db = cf::db_table "name"
		655
		656	Create and/or open a new database table. The string must not be "db" and must be unique
		657	within each server.
		658
		659	=cut
		660
		661	sub db_table($) {
		662	cf::error "db_get called from main context"
		663	if $Coro::current == $Coro::main;
		664
		665	my ($name) = @_;
		666	my $db = BDB::db_create $DB_ENV;
		667
		668	eval {
		669	$db->set_flags (BDB::CHKSUM);
		670
		671	utf8::encode $name;
		672	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		673	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		674	cf::cleanup "db_open(db): $!" if $!;
		675	};
		676	cf::cleanup "db_open(db): $@" if $@;
		677
		678	$db
		679	}
		680
		681	our $DB;
		682
		683	sub db_init {
		684	$DB ||= db_table "db";
		685	}
		686
		687	sub db_get($$) {
		688	my $key = "$_[0]/$_[1]";
		689
		690	cf::error "db_get called from main context"
		691	if $Coro::current == $Coro::main;
		692
		693	BDB::db_get $DB, undef, $key, my $data;
		694
		695	$! ? ()
		696	: $data
		697	}
		698
		699	sub db_put($$$) {
		700	BDB::dbreq_pri 4;
		701	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		702	}
		703
		704	=item cf::cache $id => [$paths...], $processversion => $process
		705
		706	Generic caching function that returns the value of the resource $id,
		707	caching and regenerating as required.
		708
		709	This function can block.
		710
		711	=cut
		712
		713	sub cache {
		714	my ($id, $src, $processversion, $process) = @_;
		715
		716	my $meta =
		717	join "\x00",
		718	$processversion,
		719	map {
		720	aio_stat $_
		721	and Carp::croak "$_: $!";
		722
		723	($_, (stat _)[7,9])
		724	} @$src;
		725
		726	my $dbmeta = db_get cache => "$id/meta";
		727	if ($dbmeta ne $meta) {
		728	# changed, we may need to process
		729
		730	my @data;
		731	my $md5;
		732
		733	for (0 .. $#$src) {
		734	0 <= aio_load $src->[$_], $data[$_]
		735	or Carp::croak "$src->[$_]: $!";
		736	}
		737
		738	# if processing is expensive, check
		739	# checksum first
		740	if (1) {
		741	$md5 =
		742	join "\x00",
		743	$processversion,
		744	map {
		745	cf::cede_to_tick;
		746	($src->[$_], Digest::MD5::md5_hex $data[$_])
		747	} 0.. $#$src;
		748
		749
		750	my $dbmd5 = db_get cache => "$id/md5";
		751	if ($dbmd5 eq $md5) {
		752	db_put cache => "$id/meta", $meta;
		753
		754	return db_get cache => "$id/data";
		755	}
		756	}
		757
		758	my $t1 = Time::HiRes::time;
		759	my $data = $process->(\@data);
		760	my $t2 = Time::HiRes::time;
		761
		762	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		763
		764	db_put cache => "$id/data", $data;
		765	db_put cache => "$id/md5" , $md5;
		766	db_put cache => "$id/meta", $meta;
		767
		768	return $data;
		769	}
		770
		771	db_get cache => "$id/data"
		772	}
		773
		774	=item cf::datalog type => key => value, ...
		775
		776	Log a datalog packet of the given type with the given key-value pairs.
		777
		778	=cut
		779
		780	sub datalog($@) {
		781	my ($type, %kv) = @_;
		782	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
329	}	783	}
330		784
331	=back	785	=back
332		786
333	=cut	787	=cut
334		788
335	#############################################################################	789	#############################################################################
336		790
337	package cf::path;
338
339	sub new {
340	my ($class, $path, $base) = @_;
341
342	$path = $path->as_string if ref $path;
343
344	my $self = bless { }, $class;
345
346	# {... are special paths that are not touched
347	# ?xxx/... are special absolute paths
348	# ?random/... random maps
349	# /! non-realised random map exit
350	# /... normal maps
351	# ~/... per-player maps without a specific player (DO NOT USE)
352	# ~user/... per-player map of a specific user
353
354	if ($path =~ /^{/) {
355	# fine as it is
356	} elsif ($path =~ s{^\?random/}{}) {
357	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
358	$self->{random} = cf::from_json $data;
359	} else {
360	if ($path =~ s{^~([^/]+)?}{}) {
361	$self->{user_rel} = 1;
362
363	if (defined $1) {
364	$self->{user} = $1;
365	} elsif ($base =~ m{^~([^/]+)/}) {
366	$self->{user} = $1;
367	} else {
368	warn "cannot resolve user-relative path without user <$path,$base>\n";
369	}
370	} elsif ($path =~ /^\//) {
371	# already absolute
372	} else {
373	$base =~ s{[^/]+/?$}{};
374	return $class->new ("$base/$path");
375	}
376
377	for ($path) {
378	redo if s{/\.?/}{/};
379	redo if s{/[^/]+/\.\./}{/};
380	}
381	}
382
383	$self->{path} = $path;
384
385	$self
386	}
387
388	# the name / primary key / in-game path
389	sub as_string {
390	my ($self) = @_;
391
392	$self->{user_rel} ? "~$self->{user}$self->{path}"
393	: $self->{random} ? "?random/$self->{path}"
394	: $self->{path}
395	}
396
397	# the displayed name, this is a one way mapping
398	sub visible_name {
399	my ($self) = @_;
400
401	# if (my $rmp = $self->{random}) {
402	# # todo: be more intelligent about this
403	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
404	# } else {
405	$self->as_string
406	# }
407	}
408
409	# escape the /'s in the path
410	sub _escaped_path {
411	# ∕ is U+2215
412	(my $path = $_[0]{path}) =~ s/\//∕/g;
413	$path
414	}
415
416	# the original (read-only) location
417	sub load_path {
418	my ($self) = @_;
419
420	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
421	}
422
423	# the temporary/swap location
424	sub save_path {
425	my ($self) = @_;
426
427	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
428	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
429	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
430	}
431
432	# the unique path, might be eq to save_path
433	sub uniq_path {
434	my ($self) = @_;
435
436	$self->{user_rel} || $self->{random}
437	? undef
438	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
439	}
440
441	# return random map parameters, or undef
442	sub random_map_params {
443	my ($self) = @_;
444
445	$self->{random}
446	}
447
448	# this is somewhat ugly, but style maps do need special treatment
449	sub is_style_map {
450	$_[0]{path} =~ m{^/styles/}
451	}
452
453	package cf;
454
455	#############################################################################
456
457	=head2 ATTACHABLE OBJECTS	791	=head2 ATTACHABLE OBJECTS
458		792
459	Many objects in crossfire are so-called attachable objects. That means you can	793	Many objects in deliantra are so-called attachable objects. That means you can
460	attach callbacks/event handlers (a collection of which is called an "attachment")	794	attach callbacks/event handlers (a collection of which is called an "attachment")
461	to it. All such attachable objects support the following methods.	795	to it. All such attachable objects support the following methods.
462		796
463	In the following description, CLASS can be any of C<global>, C<object>	797	In the following description, CLASS can be any of C<global>, C<object>
464	C<player>, C<client> or C<map> (i.e. the attachable objects in	798	C<player>, C<client> or C<map> (i.e. the attachable objects in
465	crossfire+).	799	Deliantra).
466		800
467	=over 4	801	=over 4
468		802
469	=item $attachable->attach ($attachment, key => $value...)	803	=item $attachable->attach ($attachment, key => $value...)
470		804
…		…
514	=item cf::CLASS::attachment $name, ...	848	=item cf::CLASS::attachment $name, ...
515		849
516	Register an attachment by C<$name> through which attachable objects of the	850	Register an attachment by C<$name> through which attachable objects of the
517	given CLASS can refer to this attachment.	851	given CLASS can refer to this attachment.
518		852
519	Some classes such as crossfire maps and objects can specify attachments	853	Some classes such as deliantra maps and objects can specify attachments
520	that are attached at load/instantiate time, thus the need for a name.	854	that are attached at load/instantiate time, thus the need for a name.
521		855
522	These calls expect any number of the following handler/hook descriptions:	856	These calls expect any number of the following handler/hook descriptions:
523		857
524	=over 4	858	=over 4
…		…
584	our @CB_TYPE = (); # registry for type (cf-object class) based events	918	our @CB_TYPE = (); # registry for type (cf-object class) based events
585	our @CB_MAP = ();	919	our @CB_MAP = ();
586		920
587	my %attachment;	921	my %attachment;
588		922
		923	sub cf::attachable::thawer_merge {
		924	# simply override everything except _meta
		925	local $_[0]{_meta};
		926	%{$_[0]} = %{$_[1]};
		927	}
		928
589	sub _attach_cb($$$$) {	929	sub _attach_cb($$$$) {
590	my ($registry, $event, $prio, $cb) = @_;	930	my ($registry, $event, $prio, $cb) = @_;
591		931
592	use sort 'stable';	932	use sort 'stable';
593		933
…		…
627	$registry = $CB_TYPE[$object_type] ||= [];	967	$registry = $CB_TYPE[$object_type] ||= [];
628		968
629	} elsif ($type eq "subtype") {	969	} elsif ($type eq "subtype") {
630	defined $object_type or Carp::croak "subtype specified without type";	970	defined $object_type or Carp::croak "subtype specified without type";
631	my $object_subtype = shift @arg;	971	my $object_subtype = shift @arg;
632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	972	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
633		973
634	} elsif ($type eq "package") {	974	} elsif ($type eq "package") {
635	my $pkg = shift @arg;	975	my $pkg = shift @arg;
636		976
637	while (my ($name, $id) = each %cb_id) {	977	while (my ($name, $id) = each %cb_id) {
…		…
642		982
643	} elsif (exists $cb_id{$type}) {	983	} elsif (exists $cb_id{$type}) {
644	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	984	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
645		985
646	} elsif (ref $type) {	986	} elsif (ref $type) {
647	warn "attaching objects not supported, ignoring.\n";	987	error "attaching objects not supported, ignoring.\n";
648		988
649	} else {	989	} else {
650	shift @arg;	990	shift @arg;
651	warn "attach argument '$type' not supported, ignoring.\n";	991	error "attach argument '$type' not supported, ignoring.\n";
652	}	992	}
653	}	993	}
654	}	994	}
655		995
656	sub _object_attach {	996	sub _object_attach {
…		…
666	_attach $registry, $klass, @attach;	1006	_attach $registry, $klass, @attach;
667	}	1007	}
668		1008
669	$obj->{$name} = \%arg;	1009	$obj->{$name} = \%arg;
670	} else {	1010	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	1011	info "object uses attachment '$name' which is not available, postponing.\n";
672	}	1012	}
673		1013
674	$obj->{_attachment}{$name} = undef;	1014	$obj->{_attachment}{$name} = undef;
675	}	1015	}
676		1016
…		…
678	if (ref $_[0]) {	1018	if (ref $_[0]) {
679	_object_attach @_;	1019	_object_attach @_;
680	} else {	1020	} else {
681	_attach shift->_attach_registry, @_;	1021	_attach shift->_attach_registry, @_;
682	}	1022	}
		1023	_recalc_want;
683	};	1024	};
684		1025
685	# all those should be optimised	1026	# all those should be optimised
686	sub cf::attachable::detach {	1027	sub cf::attachable::detach {
687	my ($obj, $name) = @_;	1028	my ($obj, $name) = @_;
…		…
690	delete $obj->{_attachment}{$name};	1031	delete $obj->{_attachment}{$name};
691	reattach ($obj);	1032	reattach ($obj);
692	} else {	1033	} else {
693	Carp::croak "cannot, currently, detach class attachments";	1034	Carp::croak "cannot, currently, detach class attachments";
694	}	1035	}
		1036	_recalc_want;
695	};	1037	};
696		1038
697	sub cf::attachable::attached {	1039	sub cf::attachable::attached {
698	my ($obj, $name) = @_;	1040	my ($obj, $name) = @_;
699		1041
…		…
714	";	1056	";
715	die if $@;	1057	die if $@;
716	}	1058	}
717		1059
718	our $override;	1060	our $override;
719	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1061	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
720		1062
721	sub override {	1063	sub override {
722	$override = 1;	1064	$override = 1;
723	@invoke_results = ();	1065	@INVOKE_RESULTS = (@_);
724	}	1066	}
725		1067
726	sub do_invoke {	1068	sub do_invoke {
727	my $event = shift;	1069	my $event = shift;
728	my $callbacks = shift;	1070	my $callbacks = shift;
729		1071
730	@invoke_results = ();	1072	@INVOKE_RESULTS = ();
731		1073
732	local $override;	1074	local $override;
733		1075
734	for (@$callbacks) {	1076	for (@$callbacks) {
735	eval { &{$_->[1]} };	1077	eval { &{$_->[1]} };
736		1078
737	if ($@) {	1079	if ($@) {
738	warn "$@";
739	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1080	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
740	override;	1081	override;
741	}	1082	}
742		1083
743	return 1 if $override;	1084	return 1 if $override;
744	}	1085	}
745		1086
746	0	1087	0
747	}	1088	}
748		1089
749	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1090	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
750		1091
751	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1092	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
752		1093
753	Generate an object-specific event with the given arguments.	1094	Generate an object-specific event with the given arguments.
754		1095
755	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1096	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
756	removed in future versions), and there is no public API to access override	1097	removed in future versions), and there is no public API to access override
757	results (if you must, access C<@cf::invoke_results> directly).	1098	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
758		1099
759	=back	1100	=back
760		1101
761	=cut	1102	=cut
762		1103
763	#############################################################################	1104	#############################################################################
764	# object support	1105	# object support
		1106
		1107	sub _object_equal($$);
		1108	sub _object_equal($$) {
		1109	my ($a, $b) = @_;
		1110
		1111	return 0 unless (ref $a) eq (ref $b);
		1112
		1113	if ("HASH" eq ref $a) {
		1114	my @ka = keys %$a;
		1115	my @kb = keys %$b;
		1116
		1117	return 0 if @ka != @kb;
		1118
		1119	for (0 .. $#ka) {
		1120	return 0 unless $ka[$_] eq $kb[$_];
		1121	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1122	}
		1123
		1124	} elsif ("ARRAY" eq ref $a) {
		1125
		1126	return 0 if @$a != @$b;
		1127
		1128	for (0 .. $#$a) {
		1129	return 0 unless _object_equal $a->[$_], $b->[$_];
		1130	}
		1131
		1132	} elsif ($a ne $b) {
		1133	return 0;
		1134	}
		1135
		1136	1
		1137	}
		1138
		1139	our $SLOW_MERGES;#d#
		1140	sub _can_merge {
		1141	my ($ob1, $ob2) = @_;
		1142
		1143	++$SLOW_MERGES;#d#
		1144
		1145	# we do the slow way here
		1146	return _object_equal $ob1, $ob2
		1147	}
765		1148
766	sub reattach {	1149	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	1150	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	1151	my ($obj) = @_;
		1152
		1153	# no longer needed after getting rid of delete_package?
		1154	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
769		1155
770	my $registry = $obj->registry;	1156	my $registry = $obj->registry;
771		1157
772	@$registry = ();	1158	@$registry = ();
773		1159
…		…
778	for (@$attach) {	1164	for (@$attach) {
779	my ($klass, @attach) = @$_;	1165	my ($klass, @attach) = @$_;
780	_attach $registry, $klass, @attach;	1166	_attach $registry, $klass, @attach;
781	}	1167	}
782	} else {	1168	} else {
783	warn "object uses attachment '$name' that is not available, postponing.\n";	1169	info "object uses attachment '$name' that is not available, postponing.\n";
784	}	1170	}
785	}	1171	}
786	}	1172	}
787		1173
788	cf::attachable->attach (	1174	cf::attachable->attach (
789	prio => -1000000,	1175	prio => -1000000,
790	on_instantiate => sub {	1176	on_instantiate => sub {
791	my ($obj, $data) = @_;	1177	my ($obj, $data) = @_;
792		1178
793	$data = from_json $data;	1179	$data = decode_json $data;
794		1180
795	for (@$data) {	1181	for (@$data) {
796	my ($name, $args) = @$_;	1182	my ($name, $args) = @$_;
797		1183
798	$obj->attach ($name, %{$args || {} });	1184	$obj->attach ($name, %{$args || {} });
…		…
814	sub object_freezer_save {	1200	sub object_freezer_save {
815	my ($filename, $rdata, $objs) = @_;	1201	my ($filename, $rdata, $objs) = @_;
816		1202
817	sync_job {	1203	sync_job {
818	if (length $$rdata) {	1204	if (length $$rdata) {
		1205	utf8::decode (my $decname = $filename);
819	warn sprintf "saving %s (%d,%d)\n",	1206	trace sprintf "saving %s (%d,%d)\n",
820	$filename, length $$rdata, scalar @$objs;	1207	$decname, length $$rdata, scalar @$objs
		1208	if $VERBOSE_IO;
821		1209
822	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1210	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
823	chmod SAVE_MODE, $fh;	1211	aio_chmod $fh, SAVE_MODE;
824	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1212	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1213	if ($cf::USE_FSYNC) {
		1214	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
825	aio_fsync $fh;	1215	aio_fsync $fh;
		1216	}
826	close $fh;	1217	aio_close $fh;
827		1218
828	if (@$objs) {	1219	if (@$objs) {
829	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1220	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1221	aio_chmod $fh, SAVE_MODE;
831	my $data = Storable::nfreeze { version => 1, objs => $objs };	1222	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
832	aio_write $fh, 0, (length $data), $data, 0;	1223	aio_write $fh, 0, (length $data), $data, 0;
		1224	if ($cf::USE_FSYNC) {
		1225	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
833	aio_fsync $fh;	1226	aio_fsync $fh;
		1227	}
834	close $fh;	1228	aio_close $fh;
835	aio_rename "$filename.pst~", "$filename.pst";	1229	aio_rename "$filename.pst~", "$filename.pst";
836	}	1230	}
837	} else {	1231	} else {
838	aio_unlink "$filename.pst";	1232	aio_unlink "$filename.pst";
839	}	1233	}
840		1234
841	aio_rename "$filename~", $filename;	1235	aio_rename "$filename~", $filename;
		1236
		1237	$filename =~ s%/[^/]+$%%;
		1238	aio_pathsync $filename if $cf::USE_FSYNC;
842	} else {	1239	} else {
843	warn "FATAL: $filename~: $!\n";	1240	error "unable to save objects: $filename~: $!\n";
844	}	1241	}
845	} else {	1242	} else {
846	aio_unlink $filename;	1243	aio_unlink $filename;
847	aio_unlink "$filename.pst";	1244	aio_unlink "$filename.pst";
848	}	1245	}
849	}	1246	};
850	}	1247	}
851		1248
852	sub object_freezer_as_string {	1249	sub object_freezer_as_string {
853	my ($rdata, $objs) = @_;	1250	my ($rdata, $objs) = @_;
854		1251
…		…
866	or return;	1263	or return;
867		1264
868	unless (aio_stat "$filename.pst") {	1265	unless (aio_stat "$filename.pst") {
869	(aio_load "$filename.pst", $av) >= 0	1266	(aio_load "$filename.pst", $av) >= 0
870	or return;	1267	or return;
		1268
871	$av = eval { (Storable::thaw $av)->{objs} };	1269	my $st = eval { Coro::Storable::thaw $av };
		1270	$av = $st->{objs};
872	}	1271	}
873		1272
		1273	utf8::decode (my $decname = $filename);
874	warn sprintf "loading %s (%d)\n",	1274	trace sprintf "loading %s (%d,%d)\n",
875	$filename, length $data, scalar @{$av || []};#d#	1275	$decname, length $data, scalar @{$av || []}
		1276	if $VERBOSE_IO;
		1277
876	return ($data, $av);	1278	($data, $av)
877	}	1279	}
		1280
		1281	=head2 COMMAND CALLBACKS
		1282
		1283	=over 4
		1284
		1285	=cut
878		1286
879	#############################################################################	1287	#############################################################################
880	# command handling &c	1288	# command handling &c
881		1289
882	=item cf::register_command $name => \&callback($ob,$args);	1290	=item cf::register_command $name => \&callback($ob,$args);
…		…
895	push @{ $COMMAND{$name} }, [$caller, $cb];	1303	push @{ $COMMAND{$name} }, [$caller, $cb];
896	}	1304	}
897		1305
898	=item cf::register_extcmd $name => \&callback($pl,$packet);	1306	=item cf::register_extcmd $name => \&callback($pl,$packet);
899		1307
900	Register a callbackf ro execution when the client sends an extcmd packet.	1308	Register a callback for execution when the client sends an (synchronous)
		1309	extcmd packet. Ext commands will be processed in the order they are
		1310	received by the server, like other user commands. The first argument is
		1311	the logged-in player. Ext commands can only be processed after a player
		1312	has logged in successfully.
901		1313
902	If the callback returns something, it is sent back as if reply was being	1314	If the callback returns something, it is sent back as if reply was being
903	called.	1315	called.
904		1316
		1317	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1318
		1319	Register a callback for execution when the client sends an (asynchronous)
		1320	exticmd packet. Exti commands are processed by the server as soon as they
		1321	are received, i.e. out of order w.r.t. other commands. The first argument
		1322	is a client socket. Exti commands can be received anytime, even before
		1323	log-in.
		1324
		1325	If the callback returns something, it is sent back as if reply was being
		1326	called.
		1327
905	=cut	1328	=cut
906		1329
907	sub register_extcmd {	1330	sub register_extcmd {
908	my ($name, $cb) = @_;	1331	my ($name, $cb) = @_;
909		1332
910	my $caller = caller;
911	#warn "registering extcmd '$name' to '$caller'";
912
913	$EXTCMD{$name} = [$cb, $caller];	1333	$EXTCMD{$name} = $cb;
914	}	1334	}
		1335
		1336	sub register_exticmd {
		1337	my ($name, $cb) = @_;
		1338
		1339	$EXTICMD{$name} = $cb;
		1340	}
		1341
		1342	use File::Glob ();
915		1343
916	cf::player->attach (	1344	cf::player->attach (
917	on_command => sub {	1345	on_unknown_command => sub {
918	my ($pl, $name, $params) = @_;	1346	my ($pl, $name, $params) = @_;
919		1347
920	my $cb = $COMMAND{$name}	1348	my $cb = $COMMAND{$name}
921	or return;	1349	or return;
922		1350
…		…
927	cf::override;	1355	cf::override;
928	},	1356	},
929	on_extcmd => sub {	1357	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1358	my ($pl, $buf) = @_;
931		1359
932	my $msg = eval { from_json $buf };	1360	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1361
934	if (ref $msg) {	1362	if (ref $msg) {
		1363	my ($type, $reply, @payload) =
		1364	"ARRAY" eq ref $msg
		1365	? @$msg
		1366	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1367
		1368	my @reply;
		1369
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1370	if (my $cb = $EXTCMD{$type}) {
936	if (my %reply = $cb->[0]->($pl, $msg)) {	1371	@reply = $cb->($pl, @payload);
937	$pl->ext_reply ($msg->{msgid}, %reply);
938	}
939	}	1372	}
		1373
		1374	$pl->ext_reply ($reply, @reply)
		1375	if $reply;
		1376
940	} else {	1377	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1378	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
942	}	1379	}
943		1380
944	cf::override;	1381	cf::override;
945	},	1382	},
946	);	1383	);
947		1384
948	sub register {	1385	# "readahead" all extensions
949	my ($base, $pkg) = @_;
950
951	#TODO
952	}
953
954	sub load_extension {	1386	sub cache_extensions {
955	my ($path) = @_;	1387	my $grp = IO::AIO::aio_group;
956		1388
957	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1389	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
958	my $base = $1;	1390	for (grep /\.ext$/, @{$_[0]}) {
959	my $pkg = $1;	1391	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
960	$pkg =~ s/[^[:word:]]/_/g;
961	$pkg = "ext::$pkg";
962
963	warn "loading '$path' into '$pkg'\n";
964
965	open my $fh, "<:utf8", $path
966	or die "$path: $!";
967
968	my $source =
969	"package $pkg; use strict; use utf8;\n"
970	. "#line 1 \"$path\"\n{\n"
971	. (do { local $/; <$fh> })
972	. "\n};\n1";
973
974	eval $source
975	or die $@ ? "$path: $@\n"
976	: "extension disabled.\n";
977
978	push @exts, $pkg;
979	$ext_pkg{$base} = $pkg;
980
981	# no strict 'refs';
982	# @{"$pkg\::ISA"} = ext::;
983
984	register $base, $pkg;
985	}
986
987	sub unload_extension {
988	my ($pkg) = @_;
989
990	warn "removing extension $pkg\n";
991
992	# remove hooks
993	#TODO
994	# for my $idx (0 .. $#PLUGIN_EVENT) {
995	# delete $hook[$idx]{$pkg};
996	# }
997
998	# remove commands
999	for my $name (keys %COMMAND) {
1000	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1001
1002	if (@cb) {
1003	$COMMAND{$name} = \@cb;
1004	} else {
1005	delete $COMMAND{$name};
1006	}	1392	}
1007	}	1393	};
1008		1394
1009	# remove extcmds	1395	$grp
1010	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1011	delete $EXTCMD{$name};
1012	}
1013
1014	if (my $cb = $pkg->can ("unload")) {
1015	eval {
1016	$cb->($pkg);
1017	1
1018	} or warn "$pkg unloaded, but with errors: $@";
1019	}
1020
1021	Symbol::delete_package $pkg;
1022	}	1396	}
1023		1397
1024	sub load_extensions {	1398	sub load_extensions {
		1399	info "loading extensions...";
		1400
		1401	cf::sync_job {
		1402	my %todo;
		1403
1025	for my $ext (<$LIBDIR/*.ext>) {	1404	for my $path (<$LIBDIR/*.ext>) {
1026	next unless -r $ext;	1405	next unless -r $path;
1027	eval {	1406
1028	load_extension $ext;	1407	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1408	my $base = $1;
		1409	my $pkg = $1;
		1410	$pkg =~ s/[^[:word:]]/_/g;
		1411	$pkg = "ext::$pkg";
		1412
		1413	open my $fh, "<:utf8", $path
		1414	or die "$path: $!";
		1415
		1416	my $source = do { local $/; <$fh> };
		1417
		1418	my %ext = (
		1419	path => $path,
		1420	base => $base,
		1421	pkg => $pkg,
		1422	);
		1423
		1424	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1425	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1426
		1427	$ext{source} =
		1428	"package $pkg; use common::sense;\n"
		1429	. "#line 1 \"$path\"\n{\n"
		1430	. $source
		1431	. "\n};\n1";
		1432
		1433	$todo{$base} = \%ext;
		1434	}
		1435
		1436	my $pass = 0;
		1437	my %done;
		1438	while (%todo) {
		1439	my $progress;
		1440
		1441	++$pass;
		1442
		1443	ext:
		1444	while (my ($k, $v) = each %todo) {
		1445	for (split /,\s*/, $v->{meta}{depends}) {
		1446	next ext
		1447	unless exists $done{$_};
		1448	}
		1449
		1450	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1451
		1452	my $active = eval $v->{source};
		1453
		1454	if (length $@) {
		1455	error "$v->{path}: $@\n";
		1456	undef $@; # work around perl 5.10.0 utf-8 caching bug
		1457
		1458	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1459	if exists $v->{meta}{mandatory};
		1460
		1461	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1462	delete $todo{$k};
		1463	} else {
		1464	$done{$k} = delete $todo{$k};
		1465	push @EXTS, $v->{pkg};
		1466	$progress = 1;
		1467
		1468	info "$v->{base}: extension inactive.\n"
		1469	unless $active;
		1470	}
1029	1	1471	}
1030	} or warn "$ext not loaded: $@";	1472
		1473	unless ($progress) {
		1474	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1475
		1476	while (my ($k, $v) = each %todo) {
		1477	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1478	if exists $v->{meta}{mandatory};
		1479	}
		1480	}
		1481	}
1031	}	1482	};
1032	}	1483	}
1033		1484
1034	#############################################################################	1485	#############################################################################
1035	# load/save/clean perl data associated with a map
1036		1486
1037	*cf::mapsupport::on_clean = sub {	1487	=back
		1488
		1489	=head2 CORE EXTENSIONS
		1490
		1491	Functions and methods that extend core deliantra objects.
		1492
		1493	=cut
		1494
		1495	package cf::player;
		1496
		1497	use Coro::AIO;
		1498
		1499	=head3 cf::player
		1500
		1501	=over 4
		1502
		1503	=item cf::player::num_playing
		1504
		1505	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1506
		1507	=cut
		1508
		1509	sub num_playing {
		1510	scalar grep
		1511	$_->ob->map
		1512	&& !$_->hidden
		1513	&& !$_->ob->flag (cf::FLAG_WIZ),
		1514	cf::player::list
		1515	}
		1516
		1517	=item cf::player::find $login
		1518
		1519	Returns the given player object, loading it if necessary (might block).
		1520
		1521	=cut
		1522
		1523	sub playerdir($) {
		1524	"$PLAYERDIR/"
		1525	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1526	}
		1527
		1528	sub path($) {
		1529	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1530
		1531	(playerdir $login) . "/playerdata"
		1532	}
		1533
		1534	sub find_active($) {
		1535	$cf::PLAYER{$_[0]}
		1536	and $cf::PLAYER{$_[0]}->active
		1537	and $cf::PLAYER{$_[0]}
		1538	}
		1539
		1540	sub exists($) {
1038	my ($map) = @_;	1541	my ($login) = @_;
1039		1542
1040	my $path = $map->tmpname;	1543	$cf::PLAYER{$login}
1041	defined $path or return;	1544	or !aio_stat path $login
1042
1043	unlink "$path.pst";
1044	};
1045
1046	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1047
1048	#############################################################################
1049	# load/save perl data associated with player->ob objects
1050
1051	sub all_objects(@) {
1052	@_, map all_objects ($_->inv), @_
1053	}	1545	}
1054		1546
1055	# TODO: compatibility cruft, remove when no longer needed	1547	sub find($) {
		1548	return $cf::PLAYER{$_[0]} || do {
		1549	my $login = $_[0];
		1550
		1551	my $guard = cf::lock_acquire "user_find:$login";
		1552
		1553	$cf::PLAYER{$_[0]} || do {
		1554	# rename old playerfiles to new ones
		1555	#TODO: remove when no longer required
		1556	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1557	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1558	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1559	aio_unlink +(playerdir $login) . "/$login.pl";
		1560
		1561	my $f = new_from_file cf::object::thawer path $login
		1562	or return;
		1563
		1564	my $pl = cf::player::load_pl $f
		1565	or return;
		1566
		1567	local $cf::PLAYER_LOADING{$login} = $pl;
		1568	$f->resolve_delayed_derefs;
		1569	$cf::PLAYER{$login} = $pl
		1570	}
		1571	}
		1572	}
		1573
1056	cf::player->attach (	1574	cf::player->attach (
1057	on_load => sub {	1575	on_load => sub {
1058	my ($pl, $path) = @_;	1576	my ($pl, $path) = @_;
1059		1577
1060	for my $o (all_objects $pl->ob) {	1578	# restore slots saved in save, below
1061	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1579	my $slots = delete $pl->{_slots};
1062	$o->set_ob_key_value ("_perl_data");
1063		1580
1064	%$o = %{ Storable::thaw pack "H*", $value };	1581	$pl->ob->current_weapon ($slots->[0]);
1065	}	1582	$pl->combat_ob ($slots->[1]);
1066	}	1583	$pl->ranged_ob ($slots->[2]);
1067	},	1584	},
1068	);	1585	);
1069		1586
1070	#############################################################################	1587	sub save($) {
		1588	my ($pl) = @_;
1071		1589
1072	=head2 CORE EXTENSIONS	1590	return if $pl->{deny_save};
1073		1591
1074	Functions and methods that extend core crossfire objects.	1592	my $path = path $pl;
		1593	my $guard = cf::lock_acquire "user_save:$path";
1075		1594
1076	=head3 cf::player	1595	return if $pl->{deny_save};
		1596
		1597	aio_mkdir playerdir $pl, 0770;
		1598	$pl->{last_save} = $cf::RUNTIME;
		1599
		1600	cf::get_slot 0.01;
		1601
		1602	# save slots, to be restored later
		1603	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1604
		1605	$pl->save_pl ($path);
		1606	cf::cede_to_tick;
		1607	}
		1608
		1609	sub new($) {
		1610	my ($login) = @_;
		1611
		1612	my $self = create;
		1613
		1614	$self->ob->name ($login);
		1615	$self->{deny_save} = 1;
		1616
		1617	$cf::PLAYER{$login} = $self;
		1618
		1619	$self
		1620	}
		1621
		1622	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1623
		1624	=cut
		1625
		1626	sub send_msg {
		1627	my $ns = shift->ns
		1628	or return;
		1629	$ns->send_msg (@_);
		1630	}
		1631
		1632	=item $pl->quit_character
		1633
		1634	Nukes the player without looking back. If logged in, the connection will
		1635	be destroyed. May block for a long time.
		1636
		1637	=cut
		1638
		1639	sub quit_character {
		1640	my ($pl) = @_;
		1641
		1642	my $name = $pl->ob->name;
		1643
		1644	$pl->{deny_save} = 1;
		1645	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1646
		1647	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1648	$pl->deactivate;
		1649	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1650	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1651	$pl->ns->destroy if $pl->ns;
		1652
		1653	my $path = playerdir $pl;
		1654	my $temp = "$path~$cf::RUNTIME~deleting~";
		1655	aio_rename $path, $temp;
		1656	delete $cf::PLAYER{$pl->ob->name};
		1657	$pl->destroy;
		1658
		1659	my $prefix = qr<^~\Q$name\E/>;
		1660
		1661	# nuke player maps
		1662	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1663
		1664	IO::AIO::aio_rmtree $temp;
		1665	}
		1666
		1667	=item $pl->kick
		1668
		1669	Kicks a player out of the game. This destroys the connection.
		1670
		1671	=cut
		1672
		1673	sub kick {
		1674	my ($pl, $kicker) = @_;
		1675
		1676	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1677	$pl->killer ("kicked");
		1678	$pl->ns->destroy;
		1679	}
		1680
		1681	=item cf::player::list_logins
		1682
		1683	Returns am arrayref of all valid playernames in the system, can take a
		1684	while and may block, so not sync_job-capable, ever.
		1685
		1686	=cut
		1687
		1688	sub list_logins {
		1689	my $dirs = aio_readdir $PLAYERDIR
		1690	or return [];
		1691
		1692	my @logins;
		1693
		1694	for my $login (@$dirs) {
		1695	my $path = path $login;
		1696
		1697	# a .pst is a dead give-away for a valid player
		1698	# if no pst file found, open and chekc for blocked users
		1699	if (aio_stat "$path.pst") {
		1700	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1701	aio_read $fh, 0, 512, my $buf, 0 or next;
		1702	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1703	}
		1704
		1705	utf8::decode $login;
		1706	push @logins, $login;
		1707	}
		1708
		1709	\@logins
		1710	}
		1711
		1712	=item $player->maps
		1713
		1714	=item cf::player::maps $login
		1715
		1716	Returns an arrayref of map paths that are private for this
		1717	player. May block.
		1718
		1719	=cut
		1720
		1721	sub maps($) {
		1722	my ($pl) = @_;
		1723
		1724	$pl = ref $pl ? $pl->ob->name : $pl;
		1725
		1726	my $files = aio_readdir playerdir $pl
		1727	or return;
		1728
		1729	my @paths;
		1730
		1731	for (@$files) {
		1732	utf8::decode $_;
		1733	next if /\.(?:pl|pst)$/;
		1734	next unless /^$PATH_SEP/o;
		1735
		1736	push @paths, cf::map::normalise "~$pl/$_";
		1737	}
		1738
		1739	\@paths
		1740	}
		1741
		1742	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1743
		1744	Expand deliantra pod fragments into protocol xml.
		1745
		1746	=item $player->ext_reply ($msgid, @msg)
		1747
		1748	Sends an ext reply to the player.
		1749
		1750	=cut
		1751
		1752	sub ext_reply($$@) {
		1753	my ($self, $id, @msg) = @_;
		1754
		1755	$self->ns->ext_reply ($id, @msg)
		1756	}
		1757
		1758	=item $player->ext_msg ($type, @msg)
		1759
		1760	Sends an ext event to the client.
		1761
		1762	=cut
		1763
		1764	sub ext_msg($$@) {
		1765	my ($self, $type, @msg) = @_;
		1766
		1767	$self->ns->ext_msg ($type, @msg);
		1768	}
		1769
		1770	=head3 cf::region
1077		1771
1078	=over 4	1772	=over 4
1079		1773
1080	=item cf::player::exists $login
1081
1082	Returns true when the given account exists.
1083
1084	=cut	1774	=cut
1085		1775
1086	sub cf::player::exists($) {	1776	package cf::region;
1087	cf::player::find $_[0]
1088	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1089	}
1090		1777
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)	1778	=item cf::region::find_by_path $path
1092		1779
1093	Sends an ext reply to the player.	1780	Tries to decuce the likely region for a map knowing only its path.
1094		1781
1095	=cut	1782	=cut
1096		1783
1097	sub cf::player::ext_reply($$$%) {	1784	sub find_by_path($) {
1098	my ($self, $id, %msg) = @_;	1785	my ($path) = @_;
1099		1786
1100	$msg{msgid} = $id;	1787	$path =~ s/^~[^\/]*//; # skip ~login
1101		1788
1102	$self->send ("ext " . to_json \%msg);	1789	my ($match, $specificity);
		1790
		1791	for my $region (list) {
		1792	if ($region->{match} && $path =~ $region->{match}) {
		1793	($match, $specificity) = ($region, $region->specificity)
		1794	if $region->specificity > $specificity;
		1795	}
		1796	}
		1797
		1798	$match
1103	}	1799	}
1104		1800
1105	=back	1801	=back
1106
1107		1802
1108	=head3 cf::map	1803	=head3 cf::map
1109		1804
1110	=over 4	1805	=over 4
1111		1806
…		…
1114	package cf::map;	1809	package cf::map;
1115		1810
1116	use Fcntl;	1811	use Fcntl;
1117	use Coro::AIO;	1812	use Coro::AIO;
1118		1813
		1814	use overload
		1815	'""' => \&as_string,
		1816	fallback => 1;
		1817
1119	our $MAX_RESET = 3600;	1818	our $MAX_RESET = 3600;
1120	our $DEFAULT_RESET = 3000;	1819	our $DEFAULT_RESET = 3000;
1121		1820
1122	sub generate_random_map {	1821	sub generate_random_map {
1123	my ($path, $rmp) = @_;	1822	my ($self, $rmp) = @_;
		1823
		1824	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1124		1825
1125	# mit "rum" bekleckern, nicht	1826	# mit "rum" bekleckern, nicht
1126	cf::map::_create_random_map	1827	$self->_create_random_map (
1127	$path,
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1828	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1829	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1830	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131	$rmp->{exit_on_final_map},	1831	$rmp->{exit_on_final_map},
1132	$rmp->{xsize}, $rmp->{ysize},	1832	$rmp->{xsize}, $rmp->{ysize},
1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1833	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1834	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1835	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1136	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1836	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1837	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region})	1838	(cf::region::find $rmp->{region}), $rmp->{custom}
		1839	)
1139	}	1840	}
1140		1841
1141	# and all this just because we cannot iterate over	1842	=item cf::map->register ($regex, $prio)
1142	# all maps in C++...
1143	sub change_all_map_light {
1144	my ($change) = @_;
1145		1843
1146	$_->change_map_light ($change)	1844	Register a handler for the map path matching the given regex at the
1147	for grep $_->outdoor, values %cf::MAP;	1845	givne priority (higher is better, built-in handlers have priority 0, the
1148	}	1846	default).
1149		1847
1150	sub try_load_header($) {	1848	=cut
		1849
		1850	sub register {
		1851	my (undef, $regex, $prio) = @_;
		1852	my $pkg = caller;
		1853
		1854	no strict;
		1855	push @{"$pkg\::ISA"}, __PACKAGE__;
		1856
		1857	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1858	}
		1859
		1860	# also paths starting with '/'
		1861	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1862
		1863	sub thawer_merge {
		1864	my ($self, $merge) = @_;
		1865
		1866	# we have to keep some variables in memory intact
		1867	local $self->{path};
		1868	local $self->{load_path};
		1869
		1870	$self->SUPER::thawer_merge ($merge);
		1871	}
		1872
		1873	sub normalise {
1151	my ($path) = @_;	1874	my ($path, $base) = @_;
		1875
		1876	$path = "$path"; # make sure its a string
		1877
		1878	$path =~ s/\.map$//;
		1879
		1880	# map plan:
		1881	#
		1882	# /! non-realised random map exit (special hack!)
		1883	# {... are special paths that are not being touched
		1884	# ?xxx/... are special absolute paths
		1885	# ?random/... random maps
		1886	# /... normal maps
		1887	# ~user/... per-player map of a specific user
		1888
		1889	$path =~ s/$PATH_SEP/\//go;
		1890
		1891	# treat it as relative path if it starts with
		1892	# something that looks reasonable
		1893	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1894	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1895
		1896	$base =~ s{[^/]+/?$}{};
		1897	$path = "$base/$path";
		1898	}
		1899
		1900	for ($path) {
		1901	redo if s{//}{/};
		1902	redo if s{/\.?/}{/};
		1903	redo if s{/[^/]+/\.\./}{/};
		1904	}
		1905
		1906	$path
		1907	}
		1908
		1909	sub new_from_path {
		1910	my (undef, $path, $base) = @_;
		1911
		1912	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1913
		1914	$path = normalise $path, $base;
		1915
		1916	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1917	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1918	my $self = bless cf::map::new, $pkg;
		1919	$self->{path} = $path; $self->path ($path);
		1920	$self->init; # pass $1 etc.
		1921	return $self;
		1922	}
		1923	}
		1924
		1925	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1926	()
		1927	}
		1928
		1929	sub init {
		1930	my ($self) = @_;
		1931
		1932	$self
		1933	}
		1934
		1935	sub as_string {
		1936	my ($self) = @_;
		1937
		1938	"$self->{path}"
		1939	}
		1940
		1941	# the displayed name, this is a one way mapping
		1942	sub visible_name {
		1943	&as_string
		1944	}
		1945
		1946	# the original (read-only) location
		1947	sub load_path {
		1948	my ($self) = @_;
		1949
		1950	"$MAPDIR/$self->{path}.map"
		1951	}
		1952
		1953	# the temporary/swap location
		1954	sub save_path {
		1955	my ($self) = @_;
		1956
		1957	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1958	"$TMPDIR/$path.map"
		1959	}
		1960
		1961	# the unique path, undef == no special unique path
		1962	sub uniq_path {
		1963	my ($self) = @_;
		1964
		1965	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1966	"$UNIQUEDIR/$path"
		1967	}
		1968
		1969	sub decay_objects {
		1970	my ($self) = @_;
		1971
		1972	return if $self->{deny_reset};
		1973
		1974	$self->do_decay_objects;
		1975	}
		1976
		1977	sub unlink_save {
		1978	my ($self) = @_;
		1979
		1980	utf8::encode (my $save = $self->save_path);
		1981	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1982	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1983	}
		1984
		1985	sub load_header_from($) {
		1986	my ($self, $path) = @_;
1152		1987
1153	utf8::encode $path;	1988	utf8::encode $path;
1154	aio_open $path, O_RDONLY, 0	1989	my $f = new_from_file cf::object::thawer $path
1155	or return;	1990	or return;
1156		1991
1157	my $map = cf::map::new	1992	$self->_load_header ($f)
1158	or return;	1993	or return;
1159		1994
1160	# for better error messages only, will be overwritten	1995	local $MAP_LOADING{$self->{path}} = $self;
1161	$map->path ($path);	1996	$f->resolve_delayed_derefs;
1162		1997
1163	$map->load_header ($path)	1998	$self->{load_path} = $path;
		1999
		2000	1
		2001	}
		2002
		2003	sub load_header_orig {
		2004	my ($self) = @_;
		2005
		2006	$self->load_header_from ($self->load_path)
		2007	}
		2008
		2009	sub load_header_temp {
		2010	my ($self) = @_;
		2011
		2012	$self->load_header_from ($self->save_path)
		2013	}
		2014
		2015	sub prepare_temp {
		2016	my ($self) = @_;
		2017
		2018	$self->last_access ((delete $self->{last_access})
		2019	|| $cf::RUNTIME); #d#
		2020	# safety
		2021	$self->{instantiate_time} = $cf::RUNTIME
		2022	if $self->{instantiate_time} > $cf::RUNTIME;
		2023	}
		2024
		2025	sub prepare_orig {
		2026	my ($self) = @_;
		2027
		2028	$self->{load_original} = 1;
		2029	$self->{instantiate_time} = $cf::RUNTIME;
		2030	$self->last_access ($cf::RUNTIME);
		2031	$self->instantiate;
		2032	}
		2033
		2034	sub load_header {
		2035	my ($self) = @_;
		2036
		2037	if ($self->load_header_temp) {
		2038	$self->prepare_temp;
		2039	} else {
		2040	$self->load_header_orig
1164	or return;	2041	or return;
		2042	$self->prepare_orig;
		2043	}
1165		2044
1166	$map->{load_path} = $path;	2045	$self->{deny_reset} = 1
		2046	if $self->no_reset;
1167		2047
1168	$map	2048	$self->default_region (cf::region::find_by_path $self->{path})
		2049	unless $self->default_region;
		2050
		2051	1
1169	}	2052	}
1170		2053
1171	sub find;	2054	sub find;
1172	sub find {	2055	sub find {
1173	my ($path, $origin) = @_;	2056	my ($path, $origin) = @_;
1174		2057
1175	#warn "find<$path,$origin>\n";#d#
1176
1177	$path = new cf::path $path, $origin && $origin->path;	2058	$path = normalise $path, $origin && $origin->path;
1178	my $key = $path->as_string;
1179		2059
1180	cf::lock_wait "map_find:$key";	2060	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1181
1182	$cf::MAP{$key} || do {
1183	my $guard = cf::lock_acquire "map_find:$key";	2061	my $guard2 = cf::lock_acquire "map_find:$path";
1184		2062
1185	# do it the slow way	2063	$cf::MAP{$path} || do {
1186	my $map = try_load_header $path->save_path;	2064	my $map = new_from_path cf::map $path
1187
1188	Coro::cede;
1189
1190	if ($map) {
1191	$map->last_access ((delete $map->{last_access})
1192	|| $cf::RUNTIME); #d#
1193	# safety
1194	$map->{instantiate_time} = $cf::RUNTIME
1195	if $map->{instantiate_time} > $cf::RUNTIME;
1196	} else {
1197	if (my $rmp = $path->random_map_params) {
1198	$map = generate_random_map $key, $rmp;
1199	} else {
1200	$map = try_load_header $path->load_path;
1201	}
1202
1203	$map or return;	2065	or return;
1204		2066
1205	$map->{load_original} = 1;
1206	$map->{instantiate_time} = $cf::RUNTIME;
1207	$map->last_access ($cf::RUNTIME);
1208	$map->instantiate;
1209
1210	# per-player maps become, after loading, normal maps
1211	$map->per_player (0) if $path->{user_rel};
1212	}
1213
1214	$map->path ($key);
1215	$map->{path} = $path;
1216	$map->{last_save} = $cf::RUNTIME;	2067	$map->{last_save} = $cf::RUNTIME;
1217		2068
1218	Coro::cede;	2069	$map->load_header
		2070	or return;
1219		2071
1220	if ($map->should_reset) {	2072	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2073	# doing this can freeze the server in a sync job, obviously
		2074	#$cf::WAIT_FOR_TICK->wait;
		2075	undef $guard2;
		2076	undef $guard1;
1221	$map->reset;	2077	$map->reset;
1222	undef $guard;
1223	$map = find $path	2078	return find $path;
1224	or return;
1225	}	2079	}
1226		2080
1227	$cf::MAP{$key} = $map	2081	$cf::MAP{$path} = $map
1228	}	2082	}
1229	}	2083	}
		2084
		2085	sub pre_load { }
		2086	#sub post_load { } # XS
1230		2087
1231	sub load {	2088	sub load {
1232	my ($self) = @_;	2089	my ($self) = @_;
1233		2090
		2091	local $self->{deny_reset} = 1; # loading can take a long time
		2092
1234	my $path = $self->{path};	2093	my $path = $self->{path};
		2094
		2095	{
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2096	my $guard = cf::lock_acquire "map_data:$path";
1236		2097
		2098	return unless $self->valid;
1237	return if $self->in_memory != cf::MAP_SWAPPED;	2099	return unless $self->in_memory == cf::MAP_SWAPPED;
1238		2100
1239	$self->in_memory (cf::MAP_LOADING);	2101	$self->in_memory (cf::MAP_LOADING);
1240		2102
1241	$self->alloc;	2103	$self->alloc;
1242	$self->load_objects ($self->{load_path}, 1)	2104
		2105	$self->pre_load;
		2106	cf::cede_to_tick;
		2107
		2108	my $f = new_from_file cf::object::thawer $self->{load_path};
		2109	$f->skip_block;
		2110	$self->_load_objects ($f)
1243	or return;	2111	or return;
1244		2112
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2113	$self->post_load_original
1246	if delete $self->{load_original};	2114	if delete $self->{load_original};
1247		2115
1248	if (my $uniq = $path->uniq_path) {	2116	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	2117	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	2118	unless (aio_stat $uniq) {
		2119	if (my $f = new_from_file cf::object::thawer $uniq) {
1251	$self->clear_unique_items;	2120	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	2121	$self->_load_objects ($f);
		2122	$f->resolve_delayed_derefs;
		2123	}
1253	}	2124	}
1254	}	2125	}
1255		2126
1256	Coro::cede;	2127	$f->resolve_delayed_derefs;
1257		2128
		2129	cf::cede_to_tick;
1258	# now do the right thing for maps	2130	# now do the right thing for maps
1259	$self->link_multipart_objects;	2131	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	2132	$self->difficulty ($self->estimate_difficulty)
1270	unless $self->difficulty;	2133	unless $self->difficulty;
		2134	cf::cede_to_tick;
		2135
		2136	unless ($self->{deny_activate}) {
		2137	$self->decay_objects;
		2138	$self->fix_auto_apply;
		2139	$self->update_buttons;
		2140	cf::cede_to_tick;
1271	$self->activate;	2141	$self->activate;
1272	}	2142	}
1273		2143
1274	Coro::cede;	2144	$self->{last_save} = $cf::RUNTIME;
		2145	$self->last_access ($cf::RUNTIME);
1275		2146
1276	$self->in_memory (cf::MAP_IN_MEMORY);	2147	$self->in_memory (cf::MAP_ACTIVE);
		2148	}
		2149
		2150	$self->post_load;
		2151	}
		2152
		2153	# customize the map for a given player, i.e.
		2154	# return the _real_ map. used by e.g. per-player
		2155	# maps to change the path to ~playername/mappath
		2156	sub customise_for {
		2157	my ($self, $ob) = @_;
		2158
		2159	return find "~" . $ob->name . "/" . $self->{path}
		2160	if $self->per_player;
		2161
		2162	# return find "?party/" . $ob->name . "/" . $self->{path}
		2163	# if $self->per_party;
		2164
		2165	$self
		2166	}
		2167
		2168	# find and load all maps in the 3x3 area around a map
		2169	sub load_neighbours {
		2170	my ($map) = @_;
		2171
		2172	my @neigh; # diagonal neighbours
		2173
		2174	for (0 .. 3) {
		2175	my $neigh = $map->tile_path ($_)
		2176	or next;
		2177	$neigh = find $neigh, $map
		2178	or next;
		2179	$neigh->load;
		2180
		2181	# now find the diagonal neighbours
		2182	push @neigh,
		2183	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2184	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2185	}
		2186
		2187	for (grep defined $_->[0], @neigh) {
		2188	my ($path, $origin) = @$_;
		2189	my $neigh = find $path, $origin
		2190	or next;
		2191	$neigh->load;
		2192	}
1277	}	2193	}
1278		2194
1279	sub find_sync {	2195	sub find_sync {
1280	my ($path, $origin) = @_;	2196	my ($path, $origin) = @_;
1281		2197
1282	cf::sync_job { cf::map::find $path, $origin }	2198	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2199	if $Coro::current == $Coro::main;
		2200
		2201	find $path, $origin
1283	}	2202	}
1284		2203
1285	sub do_load_sync {	2204	sub do_load_sync {
1286	my ($map) = @_;	2205	my ($map) = @_;
1287		2206
1288	cf::sync_job { $map->load };	2207	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2208	if $Coro::current == $Coro::main;
		2209
		2210	$map->load;
		2211	}
		2212
		2213	our %MAP_PREFETCH;
		2214	our $MAP_PREFETCHER = undef;
		2215
		2216	sub find_async {
		2217	my ($path, $origin, $load) = @_;
		2218
		2219	$path = normalise $path, $origin && $origin->{path};
		2220
		2221	if (my $map = $cf::MAP{$path}) {
		2222	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2223	}
		2224
		2225	$MAP_PREFETCH{$path} |= $load;
		2226
		2227	$MAP_PREFETCHER ||= cf::async {
		2228	$Coro::current->{desc} = "map prefetcher";
		2229
		2230	while (%MAP_PREFETCH) {
		2231	while (my ($k, $v) = each %MAP_PREFETCH) {
		2232	if (my $map = find $k) {
		2233	$map->load if $v;
		2234	}
		2235
		2236	delete $MAP_PREFETCH{$k};
		2237	}
		2238	}
		2239	undef $MAP_PREFETCHER;
		2240	};
		2241	$MAP_PREFETCHER->prio (6);
		2242
		2243	()
		2244	}
		2245
		2246	# common code, used by both ->save and ->swapout
		2247	sub _save {
		2248	my ($self) = @_;
		2249
		2250	$self->{last_save} = $cf::RUNTIME;
		2251
		2252	return unless $self->dirty;
		2253
		2254	my $save = $self->save_path; utf8::encode $save;
		2255	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2256
		2257	$self->{load_path} = $save;
		2258
		2259	return if $self->{deny_save};
		2260
		2261	local $self->{last_access} = $self->last_access;#d#
		2262
		2263	cf::async {
		2264	$Coro::current->{desc} = "map player save";
		2265	$_->contr->save for $self->players;
		2266	};
		2267
		2268	cf::get_slot 0.02;
		2269
		2270	if ($uniq) {
		2271	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2272	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2273	} else {
		2274	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2275	}
1289	}	2276	}
1290		2277
1291	sub save {	2278	sub save {
1292	my ($self) = @_;	2279	my ($self) = @_;
1293		2280
1294	my $lock = cf::lock_acquire "map_data:" . $self->path;	2281	my $lock = cf::lock_acquire "map_data:$self->{path}";
1295		2282
1296	$self->{last_save} = $cf::RUNTIME;	2283	$self->_save;
1297
1298	return unless $self->dirty;
1299
1300	my $save = $self->{path}->save_path; utf8::encode $save;
1301	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1302
1303	$self->{load_path} = $save;
1304
1305	return if $self->{deny_save};
1306
1307	local $self->{last_access} = $self->last_access;#d#
1308
1309	if ($uniq) {
1310	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1311	$self->save_objects ($uniq, cf::IO_UNIQUES);
1312	} else {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1314	}
1315	}	2284	}
1316		2285
1317	sub swap_out {	2286	sub swap_out {
1318	my ($self) = @_;	2287	my ($self) = @_;
1319		2288
1320	# save first because save cedes
1321	$self->save;
1322
1323	my $lock = cf::lock_acquire "map_data:" . $self->path;	2289	my $lock = cf::lock_acquire "map_data:$self->{path}";
1324		2290
		2291	return if $self->in_memory != cf::MAP_ACTIVE;
		2292	return if $self->{deny_save};
1325	return if $self->players;	2293	return if $self->players;
1326	return if $self->in_memory != cf::MAP_IN_MEMORY;
1327	return if $self->{deny_save};
1328		2294
		2295	# first deactivate the map and "unlink" it from the core
		2296	$self->deactivate;
		2297	$_->clear_links_to ($self) for values %cf::MAP;
		2298	$self->in_memory (cf::MAP_SWAPPED);
		2299
		2300	# then atomically save
		2301	$self->_save;
		2302
		2303	# then free the map
1329	$self->clear;	2304	$self->clear;
1330	$self->in_memory (cf::MAP_SWAPPED);
1331	}	2305	}
1332		2306
1333	sub reset_at {	2307	sub reset_at {
1334	my ($self) = @_;	2308	my ($self) = @_;
1335		2309
1336	# TODO: safety, remove and allow resettable per-player maps	2310	# TODO: safety, remove and allow resettable per-player maps
1337	return 1e99 if $self->{path}{user_rel};
1338	return 1e99 if $self->{deny_reset};	2311	return 1e99 if $self->{deny_reset};
1339		2312
1340	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2313	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1341	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2314	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1342		2315
…		…
1347	my ($self) = @_;	2320	my ($self) = @_;
1348		2321
1349	$self->reset_at <= $cf::RUNTIME	2322	$self->reset_at <= $cf::RUNTIME
1350	}	2323	}
1351		2324
1352	sub unlink_save {
1353	my ($self) = @_;
1354
1355	utf8::encode (my $save = $self->{path}->save_path);
1356	aioreq_pri 3; IO::AIO::aio_unlink $save;
1357	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1358	}
1359
1360	sub rename {
1361	my ($self, $new_path) = @_;
1362
1363	$self->unlink_save;
1364
1365	delete $cf::MAP{$self->path};
1366	$self->{path} = new cf::path $new_path;
1367	$self->path ($self->{path}->as_string);
1368	$cf::MAP{$self->path} = $self;
1369
1370	$self->save;
1371	}
1372
1373	sub reset {	2325	sub reset {
1374	my ($self) = @_;	2326	my ($self) = @_;
1375		2327
1376	my $lock = cf::lock_acquire "map_data:" . $self->path;	2328	my $lock = cf::lock_acquire "map_data:$self->{path}";
1377		2329
1378	return if $self->players;	2330	return if $self->players;
1379	return if $self->{path}{user_rel};#d#
1380		2331
1381	warn "resetting map ", $self->path;#d#	2332	cf::trace "resetting map ", $self->path, "\n";
		2333
		2334	$self->in_memory (cf::MAP_SWAPPED);
		2335
		2336	# need to save uniques path
		2337	unless ($self->{deny_save}) {
		2338	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2339
		2340	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2341	if $uniq;
		2342	}
1382		2343
1383	delete $cf::MAP{$self->path};	2344	delete $cf::MAP{$self->path};
1384		2345
		2346	$self->deactivate;
1385	$_->clear_links_to ($self) for values %cf::MAP;	2347	$_->clear_links_to ($self) for values %cf::MAP;
		2348	$self->clear;
1386		2349
1387	$self->unlink_save;	2350	$self->unlink_save;
1388	$self->destroy;	2351	$self->destroy;
1389	}	2352	}
1390		2353
1391	my $nuke_counter = "aaaa";	2354	my $nuke_counter = "aaaa";
1392		2355
1393	sub nuke {	2356	sub nuke {
1394	my ($self) = @_;	2357	my ($self) = @_;
1395		2358
		2359	{
		2360	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2361
		2362	delete $cf::MAP{$self->path};
		2363
		2364	$self->unlink_save;
		2365
		2366	bless $self, "cf::map::wrap";
		2367	delete $self->{deny_reset};
1396	$self->{deny_save} = 1;	2368	$self->{deny_save} = 1;
1397	$self->reset_timeout (1);	2369	$self->reset_timeout (1);
1398	$self->rename ("{nuke}/" . ($nuke_counter++));	2370	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2371
		2372	$cf::MAP{$self->path} = $self;
		2373	}
		2374
1399	$self->reset; # polite request, might not happen	2375	$self->reset; # polite request, might not happen
1400	}	2376	}
1401		2377
1402	sub customise_for {	2378	=item $maps = cf::map::tmp_maps
1403	my ($map, $ob) = @_;
1404		2379
1405	if ($map->per_player) {	2380	Returns an arrayref with all map paths of currently instantiated and saved
1406	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2381	maps. May block.
		2382
		2383	=cut
		2384
		2385	sub tmp_maps() {
1407	}	2386	[
1408		2387	map {
1409	$map	2388	utf8::decode $_;
		2389	/\.map$/
		2390	? normalise $_
		2391	: ()
		2392	} @{ aio_readdir $TMPDIR or [] }
		2393	]
1410	}	2394	}
1411		2395
1412	sub emergency_save {	2396	=item $maps = cf::map::random_maps
1413	my $freeze_guard = cf::freeze_mainloop;
1414		2397
1415	warn "enter emergency map save\n";	2398	Returns an arrayref with all map paths of currently instantiated and saved
		2399	random maps. May block.
1416		2400
1417	cf::sync_job {	2401	=cut
1418	warn "begin emergency map save\n";	2402
1419	$_->save for values %cf::MAP;	2403	sub random_maps() {
		2404	[
		2405	map {
		2406	utf8::decode $_;
		2407	/\.map$/
		2408	? normalise "?random/$_"
		2409	: ()
		2410	} @{ aio_readdir $RANDOMDIR or [] }
		2411	]
		2412	}
		2413
		2414	=item cf::map::unique_maps
		2415
		2416	Returns an arrayref of paths of all shared maps that have
		2417	instantiated unique items. May block.
		2418
		2419	=cut
		2420
		2421	sub unique_maps() {
		2422	[
		2423	map {
		2424	utf8::decode $_;
		2425	s/\.map$//; # TODO future compatibility hack
		2426	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2427	? ()
		2428	: normalise $_
		2429	} @{ aio_readdir $UNIQUEDIR or [] }
		2430	]
		2431	}
		2432
		2433	=item cf::map::static_maps
		2434
		2435	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2436	file in the shared directory excluding F</styles> and F</editor>). May
		2437	block.
		2438
		2439	=cut
		2440
		2441	sub static_maps() {
		2442	my @dirs = "";
		2443	my @maps;
		2444
		2445	while (@dirs) {
		2446	my $dir = shift @dirs;
		2447
		2448	next if $dir eq "/styles" || $dir eq "/editor";
		2449
		2450	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2451	or return;
		2452
		2453	for (@$files) {
		2454	s/\.map$// or next;
		2455	utf8::decode $_;
		2456	push @maps, "$dir/$_";
		2457	}
		2458
		2459	push @dirs, map "$dir/$_", @$dirs;
1420	};	2460	}
1421		2461
1422	warn "end emergency map save\n";	2462	\@maps
		2463	}
		2464
		2465	=back
		2466
		2467	=head3 cf::object
		2468
		2469	=cut
		2470
		2471	package cf::object;
		2472
		2473	=over 4
		2474
		2475	=item $ob->inv_recursive
		2476
		2477	Returns the inventory of the object I<and> their inventories, recursively,
		2478	but I<not> the object itself.
		2479
		2480	=cut
		2481
		2482	sub inv_recursive_;
		2483	sub inv_recursive_ {
		2484	map { $_, inv_recursive_ $_->inv } @_
		2485	}
		2486
		2487	sub inv_recursive {
		2488	inv_recursive_ inv $_[0]
		2489	}
		2490
		2491	=item $ref = $ob->ref
		2492
		2493	Creates and returns a persistent reference to an object that can be stored as a string.
		2494
		2495	=item $ob = cf::object::deref ($refstring)
		2496
		2497	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2498	even if the object actually exists. May block.
		2499
		2500	=cut
		2501
		2502	sub deref {
		2503	my ($ref) = @_;
		2504
		2505	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2506	my ($uuid, $name) = ($1, $2);
		2507	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2508	or return;
		2509	$pl->ob->uuid eq $uuid
		2510	or return;
		2511
		2512	$pl->ob
		2513	} else {
		2514	warn "$ref: cannot resolve object reference\n";
		2515	undef
		2516	}
1423	}	2517	}
1424		2518
1425	package cf;	2519	package cf;
1426		2520
1427	=back	2521	=back
1428
1429		2522
1430	=head3 cf::object::player	2523	=head3 cf::object::player
1431		2524
1432	=over 4	2525	=over 4
1433		2526
…		…
1436	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2529	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1437	can be C<undef>. Does the right thing when the player is currently in a	2530	can be C<undef>. Does the right thing when the player is currently in a
1438	dialogue with the given NPC character.	2531	dialogue with the given NPC character.
1439		2532
1440	=cut	2533	=cut
		2534
		2535	our $SAY_CHANNEL = {
		2536	id => "say",
		2537	title => "Map",
		2538	reply => "say ",
		2539	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2540	};
		2541
		2542	our $CHAT_CHANNEL = {
		2543	id => "chat",
		2544	title => "Chat",
		2545	reply => "chat ",
		2546	tooltip => "Player chat and shouts, global to the server.",
		2547	};
1441		2548
1442	# rough implementation of a future "reply" method that works	2549	# rough implementation of a future "reply" method that works
1443	# with dialog boxes.	2550	# with dialog boxes.
1444	#TODO: the first argument must go, split into a $npc->reply_to ( method	2551	#TODO: the first argument must go, split into a $npc->reply_to ( method
1445	sub cf::object::player::reply($$$;$) {	2552	sub cf::object::player::reply($$$;$) {
…		…
1447		2554
1448	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2555	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1449		2556
1450	if ($self->{record_replies}) {	2557	if ($self->{record_replies}) {
1451	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2558	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2559
1452	} else {	2560	} else {
		2561	my $pl = $self->contr;
		2562
		2563	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2564	my $dialog = $pl->{npc_dialog};
		2565	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2566
		2567	} else {
1453	$msg = $npc->name . " says: $msg" if $npc;	2568	$msg = $npc->name . " says: $msg" if $npc;
1454	$self->message ($msg, $flags);	2569	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2570	}
1455	}	2571	}
		2572	}
		2573
		2574	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2575
		2576	=cut
		2577
		2578	sub cf::object::send_msg {
		2579	my $pl = shift->contr
		2580	or return;
		2581	$pl->send_msg (@_);
1456	}	2582	}
1457		2583
1458	=item $player_object->may ("access")	2584	=item $player_object->may ("access")
1459		2585
1460	Returns wether the given player is authorized to access resource "access"	2586	Returns wether the given player is authorized to access resource "access"
…		…
1473		2599
1474	=item $player_object->enter_link	2600	=item $player_object->enter_link
1475		2601
1476	Freezes the player and moves him/her to a special map (C<{link}>).	2602	Freezes the player and moves him/her to a special map (C<{link}>).
1477		2603
1478	The player should be reaosnably safe there for short amounts of time. You	2604	The player should be reasonably safe there for short amounts of time (e.g.
1479	I<MUST> call C<leave_link> as soon as possible, though.	2605	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2606	though, as the player cannot control the character while it is on the link
		2607	map.
		2608
		2609	Will never block.
1480		2610
1481	=item $player_object->leave_link ($map, $x, $y)	2611	=item $player_object->leave_link ($map, $x, $y)
1482		2612
1483	Moves the player out of the specila link map onto the given map. If the	2613	Moves the player out of the special C<{link}> map onto the specified
1484	map is not valid (or omitted), the player will be moved back to the	2614	map. If the map is not valid (or omitted), the player will be moved back
1485	location he/she was before the call to C<enter_link>, or, if that fails,	2615	to the location he/she was before the call to C<enter_link>, or, if that
1486	to the emergency map position.	2616	fails, to the emergency map position.
1487		2617
1488	Might block.	2618	Might block.
1489		2619
1490	=cut	2620	=cut
		2621
		2622	sub link_map {
		2623	unless ($LINK_MAP) {
		2624	$LINK_MAP = cf::map::find "{link}"
		2625	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2626	$LINK_MAP->load;
		2627	}
		2628
		2629	$LINK_MAP
		2630	}
1491		2631
1492	sub cf::object::player::enter_link {	2632	sub cf::object::player::enter_link {
1493	my ($self) = @_;	2633	my ($self) = @_;
1494		2634
1495	$self->deactivate_recursive;	2635	$self->deactivate_recursive;
1496		2636
1497	return if $self->map == $LINK_MAP;	2637	++$self->{_link_recursion};
		2638
		2639	return if UNIVERSAL::isa $self->map, "ext::map_link";
1498		2640
1499	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2641	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1500	if $self->map;	2642	if $self->map && $self->map->{path} ne "{link}";
1501		2643
1502	$self->enter_map ($LINK_MAP, 20, 20);	2644	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1503	}	2645	}
1504		2646
1505	sub cf::object::player::leave_link {	2647	sub cf::object::player::leave_link {
1506	my ($self, $map, $x, $y) = @_;	2648	my ($self, $map, $x, $y) = @_;
		2649
		2650	return unless $self->contr->active;
1507		2651
1508	my $link_pos = delete $self->{_link_pos};	2652	my $link_pos = delete $self->{_link_pos};
1509		2653
1510	unless ($map) {	2654	unless ($map) {
1511	# restore original map position	2655	# restore original map position
…		…
1522	($x, $y) = (-1, -1)	2666	($x, $y) = (-1, -1)
1523	unless (defined $x) && (defined $y);	2667	unless (defined $x) && (defined $y);
1524		2668
1525	# use -1 or undef as default coordinates, not 0, 0	2669	# use -1 or undef as default coordinates, not 0, 0
1526	($x, $y) = ($map->enter_x, $map->enter_y)	2670	($x, $y) = ($map->enter_x, $map->enter_y)
1527	if $x <=0 && $y <= 0;	2671	if $x <= 0 && $y <= 0;
1528		2672
1529	$map->load;	2673	$map->load;
		2674	$map->load_neighbours;
1530		2675
		2676	return unless $self->contr->active;
		2677
		2678	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2679	if ($self->enter_map ($map, $x, $y)) {
		2680	# entering was successful
		2681	delete $self->{_link_recursion};
		2682	# only activate afterwards, to support waiting in hooks
1531	$self->activate_recursive;	2683	$self->activate_recursive;
1532	$self->enter_map ($map, $x, $y);
1533	}
1534
1535	cf::player->attach (
1536	on_logout => sub {
1537	my ($pl) = @_;
1538
1539	# abort map switching before logout
1540	if ($pl->ob->{_link_pos}) {
1541	cf::sync_job {
1542	$pl->ob->leave_link
1543	};
1544	}
1545	},	2684	}
1546	on_login => sub {
1547	my ($pl) = @_;
1548		2685
1549	# try to abort aborted map switching on player login :)	2686	}
1550	# should happen only on crashes
1551	if ($pl->ob->{_link_pos}) {
1552		2687
1553	$pl->ob->enter_link;	2688	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1554	(async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	$pl->ob->reply (undef,
1558	"There was an internal problem at your last logout, "
1559	. "the server will try to bring you to your intended destination in a second.",
1560	cf::NDI_RED);
1561	Coro::Timer::sleep 1;
1562	$pl->ob->leave_link;
1563	})->prio (2);
1564	}
1565	},
1566	);
1567		2689
1568	=item $player_object->goto ($path, $x, $y)	2690	Moves the player to the given map-path and coordinates by first freezing
		2691	her, loading and preparing them map, calling the provided $check callback
		2692	that has to return the map if sucecssful, and then unfreezes the player on
		2693	the new (success) or old (failed) map position. In either case, $done will
		2694	be called at the end of this process.
1569		2695
		2696	Note that $check will be called with a potentially non-loaded map, so if
		2697	it needs a loaded map it has to call C<< ->load >>.
		2698
1570	=cut	2699	=cut
		2700
		2701	our $GOTOGEN;
1571		2702
1572	sub cf::object::player::goto {	2703	sub cf::object::player::goto {
1573	my ($self, $path, $x, $y) = @_;	2704	my ($self, $path, $x, $y, $check, $done) = @_;
		2705
		2706	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2707	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2708	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2709	($path, $x, $y) = @$EMERGENCY_POSITION;
		2710	}
		2711
		2712	# do generation counting so two concurrent goto's will be executed in-order
		2713	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1574		2714
1575	$self->enter_link;	2715	$self->enter_link;
1576		2716
1577	(async {	2717	(async {
1578	$path = new cf::path $path;	2718	$Coro::current->{desc} = "player::goto $path $x $y";
1579		2719
1580	my $map = cf::map::find $path->as_string;	2720	# *tag paths override both path and x|y
		2721	if ($path =~ /^\*(.*)$/) {
		2722	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2723	my $ob = $obs[rand @obs];
		2724
		2725	# see if we actually can go there
		2726	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2727	$ob = $obs[rand @obs];
		2728	} else {
		2729	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2730	}
		2731	# else put us there anyways for now #d#
		2732
		2733	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2734	} else {
		2735	($path, $x, $y) = (undef, undef, undef);
		2736	}
		2737	}
		2738
		2739	my $map = eval {
		2740	my $map = defined $path ? cf::map::find $path : undef;
		2741
		2742	if ($map) {
1581	$map = $map->customise_for ($self) if $map;	2743	$map = $map->customise_for ($self);
1582		2744	$map = $check->($map, $x, $y, $self) if $check && $map;
1583	# warn "entering ", $map->path, " at ($x, $y)\n"	2745	} else {
1584	# if $map;
1585
1586	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2746	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2747	}
1587		2748
		2749	$map
		2750	};
		2751
		2752	if ($@) {
		2753	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2754	LOG llevError | logBacktrace, Carp::longmess $@;
		2755	}
		2756
		2757	if ($gen == $self->{_goto_generation}) {
		2758	delete $self->{_goto_generation};
1588	$self->leave_link ($map, $x, $y);	2759	$self->leave_link ($map, $x, $y);
		2760	}
		2761
		2762	$done->($self) if $done;
1589	})->prio (1);	2763	})->prio (1);
1590	}	2764	}
1591		2765
1592	=item $player_object->enter_exit ($exit_object)	2766	=item $player_object->enter_exit ($exit_object)
1593		2767
…		…
1595		2769
1596	sub parse_random_map_params {	2770	sub parse_random_map_params {
1597	my ($spec) = @_;	2771	my ($spec) = @_;
1598		2772
1599	my $rmp = { # defaults	2773	my $rmp = { # defaults
1600	xsize => 10,	2774	xsize => (cf::rndm 15, 40),
1601	ysize => 10,	2775	ysize => (cf::rndm 15, 40),
		2776	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2777	#layout => string,
1602	};	2778	};
1603		2779
1604	for (split /\n/, $spec) {	2780	for (split /\n/, $spec) {
1605	my ($k, $v) = split /\s+/, $_, 2;	2781	my ($k, $v) = split /\s+/, $_, 2;
1606		2782
…		…
1618	# that depends on the exit object	2794	# that depends on the exit object
1619		2795
1620	my $rmp = parse_random_map_params $exit->msg;	2796	my $rmp = parse_random_map_params $exit->msg;
1621		2797
1622	if ($exit->map) {	2798	if ($exit->map) {
1623	$rmp->{region} = $exit->map->region_name;	2799	$rmp->{region} = $exit->region->name;
1624	$rmp->{origin_map} = $exit->map->path;	2800	$rmp->{origin_map} = $exit->map->path;
1625	$rmp->{origin_x} = $exit->x;	2801	$rmp->{origin_x} = $exit->x;
1626	$rmp->{origin_y} = $exit->y;	2802	$rmp->{origin_y} = $exit->y;
		2803
		2804	$exit->map->touch;
1627	}	2805	}
1628		2806
1629	$rmp->{random_seed} ||= $exit->random_seed;	2807	$rmp->{random_seed} ||= $exit->random_seed;
1630		2808
1631	my $data = cf::to_json $rmp;	2809	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1632	my $md5 = Digest::MD5::md5_hex $data;	2810	my $md5 = Digest::MD5::md5_hex $data;
		2811	my $meta = "$RANDOMDIR/$md5.meta";
1633		2812
1634	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2813	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1635	aio_write $fh, 0, (length $data), $data, 0;	2814	aio_write $fh, 0, (length $data), $data, 0;
		2815	undef $fh;
		2816	aio_rename "$meta~", $meta;
1636		2817
		2818	my $slaying = "?random/$md5";
		2819
		2820	if ($exit->valid) {
1637	$exit->slaying ("?random/$md5");	2821	$exit->slaying ("?random/$md5");
1638	$exit->msg (undef);	2822	$exit->msg (undef);
		2823	}
1639	}	2824	}
1640	}	2825	}
1641		2826
1642	sub cf::object::player::enter_exit {	2827	sub cf::object::player::enter_exit {
1643	my ($self, $exit) = @_;	2828	my ($self, $exit) = @_;
…		…
1645	return unless $self->type == cf::PLAYER;	2830	return unless $self->type == cf::PLAYER;
1646		2831
1647	$self->enter_link;	2832	$self->enter_link;
1648		2833
1649	(async {	2834	(async {
1650	$self->deactivate_recursive; # just to be sure	2835	$Coro::current->{desc} = "enter_exit";
		2836
1651	unless (eval {	2837	unless (eval {
		2838	$self->deactivate_recursive; # just to be sure
		2839
		2840	# random map handling
		2841	{
		2842	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2843
1652	prepare_random_map $exit	2844	prepare_random_map $exit
1653	if $exit->slaying eq "/!";	2845	if $exit->slaying eq "/!";
		2846	}
1654		2847
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2848	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2849	my $x = $exit->stats->hp;
		2850	my $y = $exit->stats->sp;
1657		2851
		2852	$self->goto ($map, $x, $y);
		2853
		2854	# if exit is damned, update players death & WoR home-position
		2855	$self->contr->savebed ($map, $x, $y)
		2856	if $exit->flag (cf::FLAG_DAMNED);
		2857
1658	1;	2858	1
1659	}) {	2859	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2860	$self->message ("Something went wrong deep within the deliantra server. "
1661	. "I'll try to bring you back to the map you were before. "	2861	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	2862	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2863	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2864
1665	warn "ERROR in enter_exit: $@";	2865	error "ERROR in enter_exit: $@";
1666	$self->leave_link;	2866	$self->leave_link;
1667	}	2867	}
1668	})->prio (1);	2868	})->prio (1);
1669	}	2869	}
1670		2870
…		…
1681		2881
1682	sub cf::client::send_drawinfo {	2882	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2883	my ($self, $text, $flags) = @_;
1684		2884
1685	utf8::encode $text;	2885	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2886	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2887	}
1688		2888
		2889	=item $client->send_big_packet ($pkt)
		2890
		2891	Like C<send_packet>, but tries to compress large packets, and fragments
		2892	them as required.
		2893
		2894	=cut
		2895
		2896	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2897
		2898	sub cf::client::send_big_packet {
		2899	my ($self, $pkt) = @_;
		2900
		2901	# try lzf for large packets
		2902	$pkt = "lzf " . Compress::LZF::compress $pkt
		2903	if 1024 <= length $pkt and $self->{can_lzf};
		2904
		2905	# split very large packets
		2906	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2907	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2908	$pkt = "frag";
		2909	}
		2910
		2911	$self->send_packet ($pkt);
		2912	}
		2913
		2914	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2915
		2916	Send a drawinfo or msg packet to the client, formatting the msg for the
		2917	client if neccessary. C<$type> should be a string identifying the type of
		2918	the message, with C<log> being the default. If C<$color> is negative, suppress
		2919	the message unless the client supports the msg packet.
		2920
		2921	=cut
		2922
		2923	# non-persistent channels (usually the info channel)
		2924	our %CHANNEL = (
		2925	"c/motd" => {
		2926	id => "infobox",
		2927	title => "MOTD",
		2928	reply => undef,
		2929	tooltip => "The message of the day",
		2930	},
		2931	"c/identify" => {
		2932	id => "infobox",
		2933	title => "Identify",
		2934	reply => undef,
		2935	tooltip => "Items recently identified",
		2936	},
		2937	"c/examine" => {
		2938	id => "infobox",
		2939	title => "Examine",
		2940	reply => undef,
		2941	tooltip => "Signs and other items you examined",
		2942	},
		2943	"c/shopinfo" => {
		2944	id => "infobox",
		2945	title => "Shop Info",
		2946	reply => undef,
		2947	tooltip => "What your bargaining skill tells you about the shop",
		2948	},
		2949	"c/book" => {
		2950	id => "infobox",
		2951	title => "Book",
		2952	reply => undef,
		2953	tooltip => "The contents of a note or book",
		2954	},
		2955	"c/lookat" => {
		2956	id => "infobox",
		2957	title => "Look",
		2958	reply => undef,
		2959	tooltip => "What you saw there",
		2960	},
		2961	"c/who" => {
		2962	id => "infobox",
		2963	title => "Players",
		2964	reply => undef,
		2965	tooltip => "Shows players who are currently online",
		2966	},
		2967	"c/body" => {
		2968	id => "infobox",
		2969	title => "Body Parts",
		2970	reply => undef,
		2971	tooltip => "Shows which body parts you posess and are available",
		2972	},
		2973	"c/statistics" => {
		2974	id => "infobox",
		2975	title => "Statistics",
		2976	reply => undef,
		2977	tooltip => "Shows your primary statistics",
		2978	},
		2979	"c/skills" => {
		2980	id => "infobox",
		2981	title => "Skills",
		2982	reply => undef,
		2983	tooltip => "Shows your experience per skill and item power",
		2984	},
		2985	"c/shopitems" => {
		2986	id => "infobox",
		2987	title => "Shop Items",
		2988	reply => undef,
		2989	tooltip => "Shows the items currently for sale in this shop",
		2990	},
		2991	"c/resistances" => {
		2992	id => "infobox",
		2993	title => "Resistances",
		2994	reply => undef,
		2995	tooltip => "Shows your resistances",
		2996	},
		2997	"c/pets" => {
		2998	id => "infobox",
		2999	title => "Pets",
		3000	reply => undef,
		3001	tooltip => "Shows information abotu your pets/a specific pet",
		3002	},
		3003	"c/perceiveself" => {
		3004	id => "infobox",
		3005	title => "Perceive Self",
		3006	reply => undef,
		3007	tooltip => "You gained detailed knowledge about yourself",
		3008	},
		3009	"c/uptime" => {
		3010	id => "infobox",
		3011	title => "Uptime",
		3012	reply => undef,
		3013	tooltip => "How long the server has been running since last restart",
		3014	},
		3015	"c/mapinfo" => {
		3016	id => "infobox",
		3017	title => "Map Info",
		3018	reply => undef,
		3019	tooltip => "Information related to the maps",
		3020	},
		3021	"c/party" => {
		3022	id => "party",
		3023	title => "Party",
		3024	reply => "gsay ",
		3025	tooltip => "Messages and chat related to your party",
		3026	},
		3027	"c/death" => {
		3028	id => "death",
		3029	title => "Death",
		3030	reply => undef,
		3031	tooltip => "Reason for and more info about your most recent death",
		3032	},
		3033	"c/say" => $SAY_CHANNEL,
		3034	"c/chat" => $CHAT_CHANNEL,
		3035	);
		3036
		3037	sub cf::client::send_msg {
		3038	my ($self, $channel, $msg, $color, @extra) = @_;
		3039
		3040	$msg = $self->pl->expand_cfpod ($msg)
		3041	unless $color & cf::NDI_VERBATIM;
		3042
		3043	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3044
		3045	# check predefined channels, for the benefit of C
		3046	if ($CHANNEL{$channel}) {
		3047	$channel = $CHANNEL{$channel};
		3048
		3049	$self->ext_msg (channel_info => $channel);
		3050	$channel = $channel->{id};
		3051
		3052	} elsif (ref $channel) {
		3053	# send meta info to client, if not yet sent
		3054	unless (exists $self->{channel}{$channel->{id}}) {
		3055	$self->{channel}{$channel->{id}} = $channel;
		3056	$self->ext_msg (channel_info => $channel);
		3057	}
		3058
		3059	$channel = $channel->{id};
		3060	}
		3061
		3062	return unless @extra || length $msg;
		3063
		3064	# default colour, mask it out
		3065	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3066	if $color & cf::NDI_DEF;
		3067
		3068	my $pkt = "msg "
		3069	. $self->{json_coder}->encode (
		3070	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3071	);
		3072
		3073	$self->send_big_packet ($pkt);
		3074	}
		3075
		3076	=item $client->ext_msg ($type, @msg)
		3077
		3078	Sends an ext event to the client.
		3079
		3080	=cut
		3081
		3082	sub cf::client::ext_msg($$@) {
		3083	my ($self, $type, @msg) = @_;
		3084
		3085	if ($self->extcmd == 2) {
		3086	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3087	} elsif ($self->extcmd == 1) { # TODO: remove
		3088	push @msg, msgtype => "event_$type";
		3089	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3090	}
		3091	}
		3092
		3093	=item $client->ext_reply ($msgid, @msg)
		3094
		3095	Sends an ext reply to the client.
		3096
		3097	=cut
		3098
		3099	sub cf::client::ext_reply($$@) {
		3100	my ($self, $id, @msg) = @_;
		3101
		3102	if ($self->extcmd == 2) {
		3103	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3104	} elsif ($self->extcmd == 1) {
		3105	#TODO: version 1, remove
		3106	unshift @msg, msgtype => "reply", msgid => $id;
		3107	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3108	}
		3109	}
1689		3110
1690	=item $success = $client->query ($flags, "text", \&cb)	3111	=item $success = $client->query ($flags, "text", \&cb)
1691		3112
1692	Queues a query to the client, calling the given callback with	3113	Queues a query to the client, calling the given callback with
1693	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3114	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1694	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3115	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1695		3116
1696	Queries can fail, so check the return code. Or don't, as queries will become	3117	Queries can fail, so check the return code. Or don't, as queries will
1697	reliable at some point in the future.	3118	become reliable at some point in the future.
1698		3119
1699	=cut	3120	=cut
1700		3121
1701	sub cf::client::query {	3122	sub cf::client::query {
1702	my ($self, $flags, $text, $cb) = @_;	3123	my ($self, $flags, $text, $cb) = @_;
…		…
1710	utf8::encode $text;	3131	utf8::encode $text;
1711	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3132	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1712		3133
1713	$self->send_packet ($self->{query_queue}[0][0])	3134	$self->send_packet ($self->{query_queue}[0][0])
1714	if @{ $self->{query_queue} } == 1;	3135	if @{ $self->{query_queue} } == 1;
		3136
		3137	1
1715	}	3138	}
1716		3139
1717	cf::client->attach (	3140	cf::client->attach (
		3141	on_connect => sub {
		3142	my ($ns) = @_;
		3143
		3144	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3145	},
1718	on_reply => sub {	3146	on_reply => sub {
1719	my ($ns, $msg) = @_;	3147	my ($ns, $msg) = @_;
1720		3148
1721	# this weird shuffling is so that direct followup queries	3149	# this weird shuffling is so that direct followup queries
1722	# get handled first	3150	# get handled first
1723	my $queue = delete $ns->{query_queue}	3151	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	3152	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		3153
1726	(shift @$queue)->[1]->($msg);	3154	(shift @$queue)->[1]->($msg);
		3155	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		3156
1728	push @{ $ns->{query_queue} }, @$queue;	3157	push @{ $ns->{query_queue} }, @$queue;
1729		3158
1730	if (@{ $ns->{query_queue} } == @$queue) {	3159	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	3160	if (@$queue) {
…		…
1733	} else {	3162	} else {
1734	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3163	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1735	}	3164	}
1736	}	3165	}
1737	},	3166	},
		3167	on_exticmd => sub {
		3168	my ($ns, $buf) = @_;
		3169
		3170	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3171
		3172	if (ref $msg) {
		3173	my ($type, $reply, @payload) =
		3174	"ARRAY" eq ref $msg
		3175	? @$msg
		3176	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3177
		3178	my @reply;
		3179
		3180	if (my $cb = $EXTICMD{$type}) {
		3181	@reply = $cb->($ns, @payload);
		3182	}
		3183
		3184	$ns->ext_reply ($reply, @reply)
		3185	if $reply;
		3186
		3187	} else {
		3188	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3189	}
		3190
		3191	cf::override;
		3192	},
1738	);	3193	);
1739		3194
1740	=item $client->async (\&cb)	3195	=item $client->async (\&cb)
1741		3196
1742	Create a new coroutine, running the specified callback. The coroutine will	3197	Create a new coroutine, running the specified callback. The coroutine will
…		…
1758		3213
1759	$coro	3214	$coro
1760	}	3215	}
1761		3216
1762	cf::client->attach (	3217	cf::client->attach (
1763	on_destroy => sub {	3218	on_client_destroy => sub {
1764	my ($ns) = @_;	3219	my ($ns) = @_;
1765		3220
1766	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3221	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1767	},	3222	},
1768	);	3223	);
…		…
1783	our $safe = new Safe "safe";	3238	our $safe = new Safe "safe";
1784	our $safe_hole = new Safe::Hole;	3239	our $safe_hole = new Safe::Hole;
1785		3240
1786	$SIG{FPE} = 'IGNORE';	3241	$SIG{FPE} = 'IGNORE';
1787		3242
1788	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3243	$safe->permit_only (Opcode::opset qw(
		3244	:base_core :base_mem :base_orig :base_math :base_loop
		3245	grepstart grepwhile mapstart mapwhile
		3246	sort time
		3247	));
1789		3248
1790	# here we export the classes and methods available to script code	3249	# here we export the classes and methods available to script code
1791		3250
1792	=pod	3251	=pod
1793		3252
1794	The following fucntions and emthods are available within a safe environment:	3253	The following functions and methods are available within a safe environment:
1795		3254
1796	cf::object contr pay_amount pay_player map	3255	cf::object
		3256	contr pay_amount pay_player map x y force_find force_add destroy
		3257	insert remove name archname title slaying race decrease split
		3258	value
		3259
1797	cf::object::player player	3260	cf::object::player
1798	cf::player peaceful	3261	player
1799	cf::map trigger	3262
		3263	cf::player
		3264	peaceful
		3265
		3266	cf::map
		3267	trigger
1800		3268
1801	=cut	3269	=cut
1802		3270
1803	for (	3271	for (
1804	["cf::object" => qw(contr pay_amount pay_player map)],	3272	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3273	insert remove inv nrof name archname title slaying race
		3274	decrease split destroy change_exp value msg lore send_msg)],
1805	["cf::object::player" => qw(player)],	3275	["cf::object::player" => qw(player)],
1806	["cf::player" => qw(peaceful)],	3276	["cf::player" => qw(peaceful send_msg)],
1807	["cf::map" => qw(trigger)],	3277	["cf::map" => qw(trigger)],
1808	) {	3278	) {
1809	no strict 'refs';	3279	no strict 'refs';
1810	my ($pkg, @funs) = @$_;	3280	my ($pkg, @funs) = @$_;
1811	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3281	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1829		3299
1830	my $qcode = $code;	3300	my $qcode = $code;
1831	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3301	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1832	$qcode =~ s/\n/\\n/g;	3302	$qcode =~ s/\n/\\n/g;
1833		3303
		3304	%vars = (_dummy => 0) unless %vars;
		3305
		3306	my @res;
1834	local $_;	3307	local $_;
1835	local @safe::cf::_safe_eval_args = values %vars;
1836		3308
1837	my $eval =	3309	my $eval =
1838	"do {\n"	3310	"do {\n"
1839	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3311	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1840	. "#line 0 \"{$qcode}\"\n"	3312	. "#line 0 \"{$qcode}\"\n"
1841	. $code	3313	. $code
1842	. "\n}"	3314	. "\n}"
1843	;	3315	;
1844		3316
		3317	if ($CFG{safe_eval}) {
1845	sub_generation_inc;	3318	sub_generation_inc;
		3319	local @safe::cf::_safe_eval_args = values %vars;
1846	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3320	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1847	sub_generation_inc;	3321	sub_generation_inc;
		3322	} else {
		3323	local @cf::_safe_eval_args = values %vars;
		3324	@res = wantarray ? eval eval : scalar eval $eval;
		3325	}
1848		3326
1849	if ($@) {	3327	if ($@) {
1850	warn "$@";	3328	warn "$@",
1851	warn "while executing safe code '$code'\n";	3329	"while executing safe code '$code'\n",
1852	warn "with arguments " . (join " ", %vars) . "\n";	3330	"with arguments " . (join " ", %vars) . "\n";
1853	}	3331	}
1854		3332
1855	wantarray ? @res : $res[0]	3333	wantarray ? @res : $res[0]
1856	}	3334	}
1857		3335
…		…
1871	=cut	3349	=cut
1872		3350
1873	sub register_script_function {	3351	sub register_script_function {
1874	my ($fun, $cb) = @_;	3352	my ($fun, $cb) = @_;
1875		3353
1876	no strict 'refs';	3354	$fun = "safe::$fun" if $CFG{safe_eval};
1877	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3355	*$fun = $safe_hole->wrap ($cb);
1878	}	3356	}
1879		3357
1880	=back	3358	=back
1881		3359
1882	=cut	3360	=cut
1883		3361
1884	#############################################################################	3362	#############################################################################
		3363	# the server's init and main functions
1885		3364
1886	=head2 EXTENSION DATABASE SUPPORT	3365	sub load_facedata($) {
		3366	my ($path) = @_;
1887		3367
1888	Crossfire maintains a very simple database for extension use. It can	3368	# HACK to clear player env face cache, we need some signal framework
1889	currently store anything that can be serialised using Storable, which	3369	# for this (global event?)
1890	excludes objects.	3370	%ext::player_env::MUSIC_FACE_CACHE = ();
1891		3371
1892	The parameter C<$family> should best start with the name of the extension	3372	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1893	using it, it should be unique.
1894		3373
1895	=over 4	3374	trace "loading facedata from $path\n";
1896		3375
1897	=item $hashref = cf::db_get $family	3376	my $facedata;
		3377	0 < aio_load $path, $facedata
		3378	or die "$path: $!";
1898		3379
1899	Return a hashref for use by the extension C<$family>, which can be	3380	$facedata = Coro::Storable::thaw $facedata;
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902		3381
1903	=item $value = cf::db_get $family => $key	3382	$facedata->{version} == 2
		3383	or cf::cleanup "$path: version mismatch, cannot proceed.";
1904		3384
1905	Returns a single value from the database	3385	# patch in the exptable
1906		3386	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1907	=item cf::db_put $family => $hashref	3387	$facedata->{resource}{"res/exp_table"} = {
1908		3388	type => FT_RSRC,
1909	Stores the given family hashref into the database. Updates are delayed, if	3389	data => $exp_table,
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3390	hash => (Digest::MD5::md5 $exp_table),
1911
1912	=item cf::db_put $family => $key => $value
1913
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924
1925	=cut
1926
1927	our $DB;
1928
1929	{
1930	my $path = cf::localdir . "/database.pst";
1931
1932	sub db_load() {
1933	$DB = stat $path ? Storable::retrieve $path : { };
1934	}
1935
1936	my $pid;
1937
1938	sub db_save() {
1939	waitpid $pid, 0 if $pid;
1940	if (0 == ($pid = fork)) {
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});	3391	};
		3392	cf::cede_to_tick;
1958		3393
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}	3394	{
		3395	my $faces = $facedata->{faceinfo};
1963		3396
1964	sub db_get($;$) {	3397	while (my ($face, $info) = each %$faces) {
1965	@_ >= 2	3398	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969		3399
1970	sub db_put($$;$) {	3400	cf::face::set_visibility $idx, $info->{visibility};
1971	if (@_ >= 3) {	3401	cf::face::set_magicmap $idx, $info->{magicmap};
1972	$DB->{$_[0]}{$_[1]} = $_[2];	3402	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1973	} else {	3403	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978		3404
1979	cf::global->attach (	3405	cf::cede_to_tick;
1980	prio => 10000,
1981	on_cleanup => sub {
1982	db_sync;
1983	},	3406	}
1984	);
1985	}
1986		3407
1987	#############################################################################	3408	while (my ($face, $info) = each %$faces) {
1988	# the server's main()	3409	next unless $info->{smooth};
1989		3410
1990	sub cfg_load {	3411	my $idx = cf::face::find $face
		3412	or next;
		3413
		3414	if (my $smooth = cf::face::find $info->{smooth}) {
		3415	cf::face::set_smooth $idx, $smooth;
		3416	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3417	} else {
		3418	error "smooth face '$info->{smooth}' not found for face '$face'";
		3419	}
		3420
		3421	cf::cede_to_tick;
		3422	}
		3423	}
		3424
		3425	{
		3426	my $anims = $facedata->{animinfo};
		3427
		3428	while (my ($anim, $info) = each %$anims) {
		3429	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3430	cf::cede_to_tick;
		3431	}
		3432
		3433	cf::anim::invalidate_all; # d'oh
		3434	}
		3435
		3436	{
		3437	my $res = $facedata->{resource};
		3438
		3439	while (my ($name, $info) = each %$res) {
		3440	if (defined $info->{type}) {
		3441	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3442
		3443	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3444	cf::face::set_type $idx, $info->{type};
		3445	} else {
		3446	$RESOURCE{$name} = $info; # unused
		3447	}
		3448
		3449	cf::cede_to_tick;
		3450	}
		3451	}
		3452
		3453	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3454
		3455	1
		3456	}
		3457
		3458	register_exticmd fx_want => sub {
		3459	my ($ns, $want) = @_;
		3460
		3461	while (my ($k, $v) = each %$want) {
		3462	$ns->fx_want ($k, $v);
		3463	}
		3464	};
		3465
		3466	sub load_resource_file($) {
		3467	my $guard = lock_acquire "load_resource_file";
		3468
		3469	my $status = load_resource_file_ $_[0];
		3470	get_slot 0.1, 100;
		3471	cf::arch::commit_load;
		3472
		3473	$status
		3474	}
		3475
		3476	sub reload_regions {
		3477	# HACK to clear player env face cache, we need some signal framework
		3478	# for this (global event?)
		3479	%ext::player_env::MUSIC_FACE_CACHE = ();
		3480
		3481	load_resource_file "$MAPDIR/regions"
		3482	or die "unable to load regions file\n";
		3483
		3484	for (cf::region::list) {
		3485	$_->{match} = qr/$_->{match}/
		3486	if exists $_->{match};
		3487	}
		3488	}
		3489
		3490	sub reload_facedata {
		3491	load_facedata "$DATADIR/facedata"
		3492	or die "unable to load facedata\n";
		3493	}
		3494
		3495	sub reload_archetypes {
		3496	load_resource_file "$DATADIR/archetypes"
		3497	or die "unable to load archetypes\n";
		3498	}
		3499
		3500	sub reload_treasures {
		3501	load_resource_file "$DATADIR/treasures"
		3502	or die "unable to load treasurelists\n";
		3503	}
		3504
		3505	sub reload_sound {
		3506	trace "loading sound config from $DATADIR/sound\n";
		3507
		3508	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3509	or die "$DATADIR/sound $!";
		3510
		3511	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3512
		3513	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3514	my $sound = $soundconf->{compat}[$_]
		3515	or next;
		3516
		3517	my $face = cf::face::find "sound/$sound->[1]";
		3518	cf::sound::set $sound->[0] => $face;
		3519	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3520	}
		3521
		3522	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3523	my $face = cf::face::find "sound/$v";
		3524	cf::sound::set $k => $face;
		3525	}
		3526	}
		3527
		3528	sub reload_resources {
		3529	trace "reloading resource files...\n";
		3530
		3531	reload_facedata;
		3532	reload_sound;
		3533	reload_archetypes;
		3534	reload_regions;
		3535	reload_treasures;
		3536
		3537	trace "finished reloading resource files\n";
		3538	}
		3539
		3540	sub reload_config {
		3541	trace "reloading config file...\n";
		3542
1991	open my $fh, "<:utf8", cf::confdir . "/config"	3543	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	3544	or return;
1993		3545
1994	local $/;	3546	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	3547	*CFG = YAML::XS::Load scalar <$fh>;
1996		3548
1997	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3549	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
1998		3550
1999	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3551	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2000	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3552	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2001		3553
2002	if (exists $CFG{mlockall}) {	3554	if (exists $CFG{mlockall}) {
2003	eval {	3555	eval {
2004	$CFG{mlockall} ? &mlockall : &munlockall	3556	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2005	and die "WARNING: m(un)lockall failed: $!\n";	3557	and die "WARNING: m(un)lockall failed: $!\n";
2006	};	3558	};
2007	warn $@ if $@;	3559	warn $@ if $@;
2008	}	3560	}
		3561
		3562	trace "finished reloading resource files\n";
		3563	}
		3564
		3565	sub pidfile() {
		3566	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3567	or die "$PIDFILE: $!";
		3568	flock $fh, &Fcntl::LOCK_EX
		3569	or die "$PIDFILE: flock: $!";
		3570	$fh
		3571	}
		3572
		3573	# make sure only one server instance is running at any one time
		3574	sub atomic {
		3575	my $fh = pidfile;
		3576
		3577	my $pid = <$fh>;
		3578	kill 9, $pid if $pid > 0;
		3579
		3580	seek $fh, 0, 0;
		3581	print $fh $$;
		3582	}
		3583
		3584	sub main_loop {
		3585	trace "EV::loop starting\n";
		3586	if (1) {
		3587	EV::loop;
		3588	}
		3589	trace "EV::loop returned\n";
		3590	goto &main_loop unless $REALLY_UNLOOP;
2009	}	3591	}
2010		3592
2011	sub main {	3593	sub main {
		3594	cf::init_globals; # initialise logging
		3595
		3596	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3597	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3598	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3599	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3600
		3601	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3602
2012	# we must not ever block the main coroutine	3603	# we must not ever block the main coroutine
2013	local $Coro::idle = sub {	3604	local $Coro::idle = sub {
2014	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3605	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2015	async { Event::one_event };	3606	(async {
		3607	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3608	EV::loop EV::LOOP_ONESHOT;
		3609	})->prio (Coro::PRIO_MAX);
2016	};	3610	};
2017		3611
2018	cfg_load;	3612	evthread_start IO::AIO::poll_fileno;
2019	db_load;	3613
		3614	cf::sync_job {
		3615	cf::init_experience;
		3616	cf::init_anim;
		3617	cf::init_attackmess;
		3618	cf::init_dynamic;
		3619
		3620	cf::load_settings;
		3621	cf::load_materials;
		3622
		3623	reload_resources;
		3624	reload_config;
		3625	db_init;
		3626
		3627	cf::init_uuid;
		3628	cf::init_signals;
		3629	cf::init_skills;
		3630
		3631	cf::init_beforeplay;
		3632
		3633	atomic;
		3634
2020	load_extensions;	3635	load_extensions;
2021	Event::loop;	3636
		3637	utime time, time, $RUNTIMEFILE;
		3638
		3639	# no (long-running) fork's whatsoever before this point(!)
		3640	use POSIX ();
		3641	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3642
		3643	(pop @POST_INIT)->(0) while @POST_INIT;
		3644	};
		3645
		3646	cf::object::thawer::errors_are_fatal 0;
		3647	info "parse errors in files are no longer fatal from this point on.\n";
		3648
		3649	main_loop;
2022	}	3650	}
2023		3651
2024	#############################################################################	3652	#############################################################################
2025	# initialisation	3653	# initialisation and cleanup
2026		3654
		3655	# install some emergency cleanup handlers
		3656	BEGIN {
		3657	our %SIGWATCHER = ();
		3658	for my $signal (qw(INT HUP TERM)) {
		3659	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3660	cf::cleanup "SIG$signal";
		3661	};
		3662	}
		3663	}
		3664
		3665	sub write_runtime_sync {
		3666	my $t0 = AE::time;
		3667
		3668	# first touch the runtime file to show we are still running:
		3669	# the fsync below can take a very very long time.
		3670
		3671	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3672
		3673	my $guard = cf::lock_acquire "write_runtime";
		3674
		3675	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3676	or return;
		3677
		3678	my $value = $cf::RUNTIME + 90 + 10;
		3679	# 10 is the runtime save interval, for a monotonic clock
		3680	# 60 allows for the watchdog to kill the server.
		3681
		3682	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3683	and return;
		3684
		3685	# always fsync - this file is important
		3686	aio_fsync $fh
		3687	and return;
		3688
		3689	# touch it again to show we are up-to-date
		3690	aio_utime $fh, undef, undef;
		3691
		3692	close $fh
		3693	or return;
		3694
		3695	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3696	and return;
		3697
		3698	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3699
		3700	1
		3701	}
		3702
		3703	our $uuid_lock;
		3704	our $uuid_skip;
		3705
		3706	sub write_uuid_sync($) {
		3707	$uuid_skip ||= $_[0];
		3708
		3709	return if $uuid_lock;
		3710	local $uuid_lock = 1;
		3711
		3712	my $uuid = "$LOCALDIR/uuid";
		3713
		3714	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3715	or return;
		3716
		3717	my $value = uuid_seq uuid_cur;
		3718
		3719	unless ($value) {
		3720	info "cowardly refusing to write zero uuid value!\n";
		3721	return;
		3722	}
		3723
		3724	my $value = uuid_str $value + $uuid_skip;
		3725	$uuid_skip = 0;
		3726
		3727	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3728	and return;
		3729
		3730	# always fsync - this file is important
		3731	aio_fsync $fh
		3732	and return;
		3733
		3734	close $fh
		3735	or return;
		3736
		3737	aio_rename "$uuid~", $uuid
		3738	and return;
		3739
		3740	trace "uuid file written ($value).\n";
		3741
		3742	1
		3743
		3744	}
		3745
		3746	sub write_uuid($$) {
		3747	my ($skip, $sync) = @_;
		3748
		3749	$sync ? write_uuid_sync $skip
		3750	: async { write_uuid_sync $skip };
		3751	}
		3752
		3753	sub emergency_save() {
		3754	my $freeze_guard = cf::freeze_mainloop;
		3755
		3756	info "emergency_perl_save: enter\n";
		3757
		3758	# this is a trade-off: we want to be very quick here, so
		3759	# save all maps without fsync, and later call a global sync
		3760	# (which in turn might be very very slow)
		3761	local $USE_FSYNC = 0;
		3762
		3763	cf::sync_job {
		3764	cf::write_runtime_sync; # external watchdog should not bark
		3765
		3766	# use a peculiar iteration method to avoid tripping on perl
		3767	# refcount bugs in for. also avoids problems with players
		3768	# and maps saved/destroyed asynchronously.
		3769	info "emergency_perl_save: begin player save\n";
		3770	for my $login (keys %cf::PLAYER) {
		3771	my $pl = $cf::PLAYER{$login} or next;
		3772	$pl->valid or next;
		3773	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3774	$pl->save;
		3775	}
		3776	info "emergency_perl_save: end player save\n";
		3777
		3778	cf::write_runtime_sync; # external watchdog should not bark
		3779
		3780	info "emergency_perl_save: begin map save\n";
		3781	for my $path (keys %cf::MAP) {
		3782	my $map = $cf::MAP{$path} or next;
		3783	$map->valid or next;
		3784	$map->save;
		3785	}
		3786	info "emergency_perl_save: end map save\n";
		3787
		3788	cf::write_runtime_sync; # external watchdog should not bark
		3789
		3790	info "emergency_perl_save: begin database checkpoint\n";
		3791	BDB::db_env_txn_checkpoint $DB_ENV;
		3792	info "emergency_perl_save: end database checkpoint\n";
		3793
		3794	info "emergency_perl_save: begin write uuid\n";
		3795	write_uuid_sync 1;
		3796	info "emergency_perl_save: end write uuid\n";
		3797
		3798	cf::write_runtime_sync; # external watchdog should not bark
		3799
		3800	trace "emergency_perl_save: syncing database to disk";
		3801	BDB::db_env_txn_checkpoint $DB_ENV;
		3802
		3803	info "emergency_perl_save: starting sync\n";
		3804	IO::AIO::aio_sync sub {
		3805	info "emergency_perl_save: finished sync\n";
		3806	};
		3807
		3808	cf::write_runtime_sync; # external watchdog should not bark
		3809
		3810	trace "emergency_perl_save: flushing outstanding aio requests";
		3811	while (IO::AIO::nreqs || BDB::nreqs) {
		3812	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3813	}
		3814
		3815	cf::write_runtime_sync; # external watchdog should not bark
		3816	};
		3817
		3818	info "emergency_perl_save: leave\n";
		3819	}
		3820
		3821	sub post_cleanup {
		3822	my ($make_core) = @_;
		3823
		3824	IO::AIO::flush;
		3825
		3826	error Carp::longmess "post_cleanup backtrace"
		3827	if $make_core;
		3828
		3829	my $fh = pidfile;
		3830	unlink $PIDFILE if <$fh> == $$;
		3831	}
		3832
		3833	# a safer delete_package, copied from Symbol
		3834	sub clear_package($) {
		3835	my $pkg = shift;
		3836
		3837	# expand to full symbol table name if needed
		3838	unless ($pkg =~ /^main::.*::$/) {
		3839	$pkg = "main$pkg" if $pkg =~ /^::/;
		3840	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3841	$pkg .= '::' unless $pkg =~ /::$/;
		3842	}
		3843
		3844	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3845	my $stem_symtab = *{$stem}{HASH};
		3846
		3847	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3848	or return;
		3849
		3850	# clear all symbols
		3851	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3852	for my $name (keys %$leaf_symtab) {
		3853	_gv_clear *{"$pkg$name"};
		3854	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3855	}
		3856	}
		3857
2027	sub reload() {	3858	sub do_reload_perl() {
2028	# can/must only be called in main	3859	# can/must only be called in main
2029	if ($Coro::current != $Coro::main) {	3860	if (in_main) {
2030	warn "can only reload from main coroutine\n";	3861	error "can only reload from main coroutine";
2031	return;	3862	return;
2032	}	3863	}
2033		3864
		3865	return if $RELOAD++;
		3866
		3867	my $t1 = AE::time;
		3868
		3869	while ($RELOAD) {
2034	warn "reloading...";	3870	info "reloading...";
2035		3871
2036	my $guard = freeze_mainloop;	3872	trace "entering sync_job";
		3873
		3874	cf::sync_job {
2037	cf::emergency_save;	3875	cf::emergency_save;
2038		3876
2039	eval {
2040	# if anything goes wrong in here, we should simply crash as we already saved
2041
2042	# cancel all watchers
2043	for (Event::all_watchers) {
2044	$_->cancel if $_->data & WF_AUTOCANCEL;
2045	}
2046
2047	# cancel all extension coros	3877	trace "cancelling all extension coros";
2048	$_->cancel for values %EXT_CORO;	3878	$_->cancel for values %EXT_CORO;
2049	%EXT_CORO = ();	3879	%EXT_CORO = ();
2050		3880
2051	# unload all extensions	3881	trace "removing commands";
2052	for (@exts) {	3882	%COMMAND = ();
2053	warn "unloading <$_>";
2054	unload_extension $_;
2055	}
2056		3883
2057	# unload all modules loaded from $LIBDIR	3884	trace "removing ext/exti commands";
2058	while (my ($k, $v) = each %INC) {	3885	%EXTCMD = ();
2059	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3886	%EXTICMD = ();
2060		3887
2061	warn "removing <$k>";	3888	trace "unloading/nuking all extensions";
2062	delete $INC{$k};	3889	for my $pkg (@EXTS) {
		3890	trace "... unloading $pkg";
2063		3891
2064	$k =~ s/\.pm$//;
2065	$k =~ s/\//::/g;
2066
2067	if (my $cb = $k->can ("unload_module")) {	3892	if (my $cb = $pkg->can ("unload")) {
		3893	eval {
2068	$cb->();	3894	$cb->($pkg);
		3895	1
		3896	} or error "$pkg unloaded, but with errors: $@";
		3897	}
		3898
		3899	trace "... clearing $pkg";
		3900	clear_package $pkg;
2069	}	3901	}
2070		3902
2071	Symbol::delete_package $k;	3903	trace "unloading all perl modules loaded from $LIBDIR";
		3904	while (my ($k, $v) = each %INC) {
		3905	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3906
		3907	trace "... unloading $k";
		3908	delete $INC{$k};
		3909
		3910	$k =~ s/\.pm$//;
		3911	$k =~ s/\//::/g;
		3912
		3913	if (my $cb = $k->can ("unload_module")) {
		3914	$cb->();
		3915	}
		3916
		3917	clear_package $k;
2072	}	3918	}
2073		3919
2074	# sync database to disk
2075	cf::db_sync;
2076	IO::AIO::flush;
2077
2078	# get rid of safe::, as good as possible	3920	trace "getting rid of safe::, as good as possible";
2079	Symbol::delete_package "safe::$_"	3921	clear_package "safe::$_"
2080	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3922	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2081		3923
2082	# remove register_script_function callbacks	3924	trace "unloading cf.pm \"a bit\"";
2083	# TODO
2084
2085	# unload cf.pm "a bit"
2086	delete $INC{"cf.pm"};	3925	delete $INC{"cf.pm"};
		3926	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2087		3927
2088	# don't, removes xs symbols, too,	3928	# don't, removes xs symbols, too,
2089	# and global variables created in xs	3929	# and global variables created in xs
2090	#Symbol::delete_package __PACKAGE__;	3930	#clear_package __PACKAGE__;
2091		3931
2092	# reload cf.pm	3932	info "unload completed, starting to reload now";
		3933
2093	warn "reloading cf.pm";	3934	trace "reloading cf.pm";
2094	require cf;	3935	require cf;
2095	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3936	cf::_connect_to_perl_1;
2096		3937
2097	# load config and database again	3938	trace "loading config and database again";
2098	cf::cfg_load;	3939	cf::reload_config;
2099	cf::db_load;
2100		3940
2101	# load extensions
2102	warn "load extensions";	3941	trace "loading extensions";
2103	cf::load_extensions;	3942	cf::load_extensions;
2104		3943
2105	# reattach attachments to objects	3944	if ($REATTACH_ON_RELOAD) {
2106	warn "reattach";	3945	trace "reattaching attachments to objects/players";
2107	_global_reattach;	3946	_global_reattach; # objects, sockets
		3947	trace "reattaching attachments to maps";
		3948	reattach $_ for values %MAP;
		3949	trace "reattaching attachments to players";
		3950	reattach $_ for values %PLAYER;
		3951	}
		3952
		3953	trace "running post_init jobs";
		3954	(pop @POST_INIT)->(1) while @POST_INIT;
		3955
		3956	trace "leaving sync_job";
		3957
		3958	1
		3959	} or do {
		3960	error $@;
		3961	cf::cleanup "error while reloading, exiting.";
		3962	};
		3963
		3964	info "reloaded";
		3965	--$RELOAD;
		3966	}
		3967
		3968	$t1 = AE::time - $t1;
		3969	info "reload completed in ${t1}s\n";
		3970	};
		3971
		3972	our $RELOAD_WATCHER; # used only during reload
		3973
		3974	sub reload_perl() {
		3975	# doing reload synchronously and two reloads happen back-to-back,
		3976	# coro crashes during coro_state_free->destroy here.
		3977
		3978	$RELOAD_WATCHER ||= cf::async {
		3979	Coro::AIO::aio_wait cache_extensions;
		3980
		3981	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3982	do_reload_perl;
		3983	undef $RELOAD_WATCHER;
		3984	};
2108	};	3985	};
2109
2110	if ($@) {
2111	warn $@;
2112	warn "error while reloading, exiting.";
2113	exit 1;
2114	}
2115
2116	warn "reloaded successfully";
2117	};
2118
2119	#############################################################################
2120
2121	unless ($LINK_MAP) {
2122	$LINK_MAP = cf::map::new;
2123
2124	$LINK_MAP->width (41);
2125	$LINK_MAP->height (41);
2126	$LINK_MAP->alloc;
2127	$LINK_MAP->path ("{link}");
2128	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2129	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2130
2131	# dirty hack because... archetypes are not yet loaded
2132	Event->timer (
2133	after => 2,
2134	cb => sub {
2135	$_[0]->w->cancel;
2136
2137	# provide some exits "home"
2138	my $exit = cf::object::new "exit";
2139
2140	$exit->slaying ($EMERGENCY_POSITION->[0]);
2141	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2142	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2143
2144	$LINK_MAP->insert ($exit->clone, 19, 19);
2145	$LINK_MAP->insert ($exit->clone, 19, 20);
2146	$LINK_MAP->insert ($exit->clone, 19, 21);
2147	$LINK_MAP->insert ($exit->clone, 20, 19);
2148	$LINK_MAP->insert ($exit->clone, 20, 21);
2149	$LINK_MAP->insert ($exit->clone, 21, 19);
2150	$LINK_MAP->insert ($exit->clone, 21, 20);
2151	$LINK_MAP->insert ($exit->clone, 21, 21);
2152
2153	$exit->destroy;
2154	});
2155
2156	$LINK_MAP->{deny_save} = 1;
2157	$LINK_MAP->{deny_reset} = 1;
2158
2159	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2160	}	3986	}
2161
2162	register "<global>", __PACKAGE__;
2163		3987
2164	register_command "reload" => sub {	3988	register_command "reload" => sub {
2165	my ($who, $arg) = @_;	3989	my ($who, $arg) = @_;
2166		3990
2167	if ($who->flag (FLAG_WIZ)) {	3991	if ($who->flag (FLAG_WIZ)) {
2168	$who->message ("start of reload.");
2169	reload;
2170	$who->message ("end of reload.");	3992	$who->message ("reloading server.");
		3993	async {
		3994	$Coro::current->{desc} = "perl_reload";
		3995	reload_perl;
		3996	};
2171	}	3997	}
2172	};	3998	};
2173		3999
2174	unshift @INC, $LIBDIR;	4000	unshift @INC, $LIBDIR;
2175		4001
2176	$TICK_WATCHER = Event->timer (	4002	my $bug_warning = 0;
2177	reentrant => 0,	4003
2178	prio => 0,	4004	our @WAIT_FOR_TICK;
2179	at => $NEXT_TICK || $TICK,	4005	our @WAIT_FOR_TICK_BEGIN;
2180	data => WF_AUTOCANCEL,	4006
2181	cb => sub {	4007	sub wait_for_tick {
		4008	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4009
		4010	my $signal = new Coro::Signal;
		4011	push @WAIT_FOR_TICK, $signal;
		4012	$signal->wait;
		4013	}
		4014
		4015	sub wait_for_tick_begin {
		4016	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4017
		4018	my $signal = new Coro::Signal;
		4019	push @WAIT_FOR_TICK_BEGIN, $signal;
		4020	$signal->wait;
		4021	}
		4022
		4023	sub tick {
		4024	if ($Coro::current != $Coro::main) {
		4025	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4026	unless ++$bug_warning > 10;
		4027	return;
		4028	}
		4029
2182	cf::server_tick; # one server iteration	4030	cf::server_tick; # one server iteration
2183	$RUNTIME += $TICK;
2184	$NEXT_TICK += $TICK;
2185		4031
2186	# if we are delayed by four ticks or more, skip them all	4032	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2187	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2188		4033
2189	$TICK_WATCHER->at ($NEXT_TICK);	4034	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2190	$TICK_WATCHER->start;	4035	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2191	},	4036	Coro::async_pool {
2192	);	4037	$Coro::current->{desc} = "runtime saver";
2193
2194	IO::AIO::max_poll_time $TICK * 0.2;
2195
2196	Event->io (
2197	fd => IO::AIO::poll_fileno,
2198	poll => 'r',
2199	prio => 5,
2200	data => WF_AUTOCANCEL,
2201	cb => \&IO::AIO::poll_cb,
2202	);
2203
2204	Event->timer (
2205	data => WF_AUTOCANCEL,
2206	after => 0,
2207	interval => 10,
2208	cb => sub {
2209	(Coro::unblock_sub {
2210	write_runtime	4038	write_runtime_sync
2211	or warn "ERROR: unable to write runtime file: $!";	4039	or error "ERROR: unable to write runtime file: $!";
2212	})->();	4040	};
2213	},	4041	}
2214	);	4042
		4043	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4044	$sig->send;
		4045	}
		4046	while (my $sig = shift @WAIT_FOR_TICK) {
		4047	$sig->send;
		4048	}
		4049
		4050	$LOAD = ($NOW - $TICK_START) / $TICK;
		4051	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4052
		4053	if (0) {
		4054	if ($NEXT_TICK) {
		4055	my $jitter = $TICK_START - $NEXT_TICK;
		4056	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4057	debug "jitter $JITTER\n";#d#
		4058	}
		4059	}
		4060	}
		4061
		4062	{
		4063	# configure BDB
		4064
		4065	BDB::min_parallel 16;
		4066	BDB::max_poll_reqs $TICK * 0.1;
		4067	$AnyEvent::BDB::WATCHER->priority (1);
		4068
		4069	unless ($DB_ENV) {
		4070	$DB_ENV = BDB::db_env_create;
		4071	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4072	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4073	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4074	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4075	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4076
		4077	cf::sync_job {
		4078	eval {
		4079	BDB::db_env_open
		4080	$DB_ENV,
		4081	$BDBDIR,
		4082	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4083	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4084	0666;
		4085
		4086	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4087	};
		4088
		4089	cf::cleanup "db_env_open(db): $@" if $@;
		4090	};
		4091	}
		4092
		4093	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4094	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4095	};
		4096	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4097	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4098	};
		4099	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4100	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4101	};
		4102	}
		4103
		4104	{
		4105	# configure IO::AIO
		4106
		4107	IO::AIO::min_parallel 8;
		4108	IO::AIO::max_poll_time $TICK * 0.1;
		4109	undef $AnyEvent::AIO::WATCHER;
		4110	}
		4111
		4112	my $_log_backtrace;
		4113
		4114	sub _log_backtrace {
		4115	my ($msg, @addr) = @_;
		4116
		4117	$msg =~ s/\n//;
		4118
		4119	# limit the # of concurrent backtraces
		4120	if ($_log_backtrace < 2) {
		4121	++$_log_backtrace;
		4122	my $perl_bt = Carp::longmess $msg;
		4123	async {
		4124	$Coro::current->{desc} = "abt $msg";
		4125
		4126	my @bt = fork_call {
		4127	@addr = map { sprintf "%x", $_ } @addr;
		4128	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4129	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4130	or die "addr2line: $!";
		4131
		4132	my @funcs;
		4133	my @res = <$fh>;
		4134	chomp for @res;
		4135	while (@res) {
		4136	my ($func, $line) = splice @res, 0, 2, ();
		4137	push @funcs, "[$func] $line";
		4138	}
		4139
		4140	@funcs
		4141	};
		4142
		4143	LOG llevInfo, "[ABT] $perl_bt\n";
		4144	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4145	LOG llevInfo, "[ABT] $_\n" for @bt;
		4146	--$_log_backtrace;
		4147	};
		4148	} else {
		4149	LOG llevInfo, "[ABT] $msg\n";
		4150	LOG llevInfo, "[ABT] [suppressed]\n";
		4151	}
		4152	}
		4153
		4154	# load additional modules
		4155	require "cf/$_.pm" for @EXTRA_MODULES;
		4156	cf::_connect_to_perl_2;
2215		4157
2216	END { cf::emergency_save }	4158	END { cf::emergency_save }
2217		4159
2218	1	4160	1
2219		4161

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