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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.137 by root, Fri Jan 5 10:23:05 2007 UTC vs.
Revision 1.558 by root, Tue Oct 5 22:35:30 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
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
20	use Digest::MD5;	53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
21	use Fcntl;	56	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
24	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
25		62
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		69
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		78
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
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 incloader);
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 thread
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=cut
		242
		243	sub wait_for_tick();
		244	sub wait_for_tick_begin();
		245
		246	=item @cf::INVOKE_RESULTS
		247
		248	This array contains the results of the last C<invoke ()> call. When
		249	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		250	that call.
		251
		252	=item %cf::REFLECT
		253
		254	Contains, for each (C++) class name, a hash reference with information
		255	about object members (methods, scalars, arrays and flags) and other
		256	metadata, which is useful for introspection.
		257
110	=back	258	=back
111		259
112	=cut	260	=cut
113		261
114	BEGIN {	262	sub error(@) { LOG llevError, join "", @_ }
115	*CORE::GLOBAL::warn = sub {	263	sub warn (@) { LOG llevWarn , join "", @_ }
		264	sub info (@) { LOG llevInfo , join "", @_ }
		265	sub debug(@) { LOG llevDebug, join "", @_ }
		266	sub trace(@) { LOG llevTrace, join "", @_ }
		267
		268	$Coro::State::WARNHOOK = sub {
116	my $msg = join "", @_;	269	my $msg = join "", @_;
117	utf8::encode $msg;
118		270
119	$msg .= "\n"	271	$msg .= "\n"
120	unless $msg =~ /\n$/;	272	unless $msg =~ /\n$/;
121		273
122	LOG llevError, "cfperl: $msg";	274	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
123	};	275
124	}	276	LOG llevWarn, $msg;
		277	};
		278
		279	$Coro::State::DIEHOOK = sub {
		280	return unless $^S eq 0; # "eq", not "=="
		281
		282	error Carp::longmess $_[0];
		283
		284	if (in_main) {#d#
		285	error "DIEHOOK called in main context, Coro bug?\n";#d#
		286	return;#d#
		287	}#d#
		288
		289	# kill coroutine otherwise
		290	Coro::terminate
		291	};
125		292
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	293	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	294	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	295	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	296	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	297	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		298	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	299	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		300
133	# we bless all objects into (empty) derived classes to force a method lookup	301	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	302	# within the Safe compartment.
135	for my $pkg (qw(	303	for my $pkg (qw(
136	cf::global cf::attachable	304	cf::global cf::attachable
137	cf::object cf::object::player	305	cf::object cf::object::player
138	cf::client cf::player	306	cf::client cf::player
139	cf::arch cf::living	307	cf::arch cf::living
		308	cf::map cf::mapspace
140	cf::map cf::party cf::region	309	cf::party cf::region
141	)) {	310	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	311	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	312	}
145		313
146	$Event::DIED = sub {	314	$EV::DIED = sub {
147	warn "error in event callback: @_";	315	Carp::cluck "error in event callback: @_";
148	};	316	};
149		317
150	my %ext_pkg;	318	#############################################################################
151	my @exts;
152	my @hook;
153		319
154	=head2 UTILITY FUNCTIONS	320	=head2 UTILITY FUNCTIONS
155		321
156	=over 4	322	=over 4
157		323
158	=cut	324	=item dumpval $ref
159		325
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	326	=cut
161		327
		328	sub dumpval {
		329	eval {
		330	local $SIG{__DIE__};
		331	my $d;
		332	if (1) {
		333	$d = new Data::Dumper([$_[0]], ["*var"]);
		334	$d->Terse(1);
		335	$d->Indent(2);
		336	$d->Quotekeys(0);
		337	$d->Useqq(1);
		338	#$d->Bless(...);
		339	$d->Seen($_[1]) if @_ > 1;
		340	$d = $d->Dump();
		341	}
		342	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		343	$d
		344	} || "[unable to dump $_[0]: '$@']";
		345	}
		346
162	=item $ref = cf::from_json $json	347	=item $ref = cf::decode_json $json
163		348
164	Converts a JSON string into the corresponding perl data structure.	349	Converts a JSON string into the corresponding perl data structure.
165		350
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	351	=item $json = cf::encode_json $ref
174		352
175	Converts a perl data structure into its JSON representation.	353	Converts a perl data structure into its JSON representation.
176		354
177	=cut	355	=cut
178		356
179	sub to_json($) {	357	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	358
181	JSON::Syck::Dump $_[0]	359	sub encode_json($) { $json_coder->encode ($_[0]) }
		360	sub decode_json($) { $json_coder->decode ($_[0]) }
		361
		362	=item $ref = cf::yaml_load $scalar
		363
		364	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		365
		366	=cut
		367
		368	sub fork_call(&@);
		369
		370	sub yaml_load($) {
		371	fork_call { YAML::XS::Load $_[0] } @_
		372	}
		373
		374	=item cf::post_init { BLOCK }
		375
		376	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		377	but I<before> the server starts ticking again.
		378
		379	The codeblock will have a single boolean argument to indicate whether this
		380	is a reload or not.
		381
		382	=cut
		383
		384	sub post_init(&) {
		385	push @POST_INIT, shift;
		386	}
		387
		388	sub _post_init {
		389	trace "running post_init jobs";
		390
		391	# run them in parallel...
		392
		393	my @join;
		394
		395	while () {
		396	push @join, map &Coro::async ($_, 0), @POST_INIT;
		397	@POST_INIT = ();
		398
		399	@join or last;
		400
		401	(pop @join)->join;
		402	}
182	}	403	}
183		404
184	=item cf::lock_wait $string	405	=item cf::lock_wait $string
185		406
186	Wait until the given lock is available. See cf::lock_acquire.	407	Wait until the given lock is available. See cf::lock_acquire.
187		408
188	=item my $lock = cf::lock_acquire $string	409	=item my $lock = cf::lock_acquire $string
189		410
190	Wait until the given lock is available and then acquires it and returns	411	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,	412	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	413	for example when the coroutine gets canceled), the lock is automatically
193	returned.	414	returned.
194		415
		416	Locks are *not* recursive, locking from the same coro twice results in a
		417	deadlocked coro.
		418
195	Lock names should begin with a unique identifier (for example, cf::map::find	419	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	420	uses map_find and cf::map::load uses map_load).
197		421
198	=cut	422	=item $locked = cf::lock_active $string
199		423
200	our %LOCK;	424	Return true if the lock is currently active, i.e. somebody has locked it.
		425
		426	=cut
		427
		428	our $LOCKS = new Coro::SemaphoreSet;
201		429
202	sub lock_wait($) {	430	sub lock_wait($) {
203	my ($key) = @_;	431	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	432	}
211		433
212	sub lock_acquire($) {	434	sub lock_acquire($) {
213	my ($key) = @_;	435	$LOCKS->guard ($_[0])
		436	}
214		437
215	# wait, to be sure we are not locked	438	sub lock_active($) {
216	lock_wait $key;	439	$LOCKS->count ($_[0]) < 1
		440	}
217		441
218	$LOCK{$key} = [];	442	sub freeze_mainloop {
		443	tick_inhibit_inc;
219		444
220	Coro::guard {	445	&Guard::guard (\&tick_inhibit_dec);
221	# wake up all waiters, to be on the safe side	446	}
222	$_->ready for @{ delete $LOCK{$key} };	447
		448	=item cf::periodic $interval, $cb
		449
		450	Like EV::periodic, but randomly selects a starting point so that the actions
		451	get spread over time.
		452
		453	=cut
		454
		455	sub periodic($$) {
		456	my ($interval, $cb) = @_;
		457
		458	my $start = rand List::Util::min 180, $interval;
		459
		460	EV::periodic $start, $interval, 0, $cb
		461	}
		462
		463	=item cf::get_slot $time[, $priority[, $name]]
		464
		465	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		466	This call blocks and returns only when you have at least C<$time> seconds
		467	of cpu time till the next tick. The slot is only valid till the next cede.
		468
		469	The optional C<$name> can be used to identify the job to run. It might be
		470	used for statistical purposes and should identify the same time-class.
		471
		472	Useful for short background jobs.
		473
		474	=cut
		475
		476	our @SLOT_QUEUE;
		477	our $SLOT_QUEUE;
		478	our $SLOT_DECAY = 0.9;
		479
		480	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		481	$SLOT_QUEUE = Coro::async {
		482	$Coro::current->desc ("timeslot manager");
		483
		484	my $signal = new Coro::Signal;
		485	my $busy;
		486
		487	while () {
		488	next_job:
		489
		490	my $avail = cf::till_tick;
		491
		492	for (0 .. $#SLOT_QUEUE) {
		493	if ($SLOT_QUEUE[$_][0] <= $avail) {
		494	$busy = 0;
		495	my $job = splice @SLOT_QUEUE, $_, 1, ();
		496	$job->[2]->send;
		497	Coro::cede;
		498	goto next_job;
		499	} else {
		500	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		501	}
		502	}
		503
		504	if (@SLOT_QUEUE) {
		505	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		506	push @cf::WAIT_FOR_TICK, $signal;
		507	$signal->wait;
		508	} else {
		509	$busy = 0;
		510	Coro::schedule;
		511	}
223	}	512	}
		513	};
		514
		515	sub get_slot($;$$) {
		516	return if tick_inhibit || $Coro::current == $Coro::main;
		517
		518	my ($time, $pri, $name) = @_;
		519
		520	$time = clamp $time, 0.01, $TICK * .6;
		521
		522	my $sig = new Coro::Signal;
		523
		524	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		525	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		526	$SLOT_QUEUE->ready;
		527	$sig->wait;
224	}	528	}
225		529
226	=item cf::async { BLOCK }	530	=item cf::async { BLOCK }
227		531
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	532	Currently the same as Coro::async_pool, meaning you cannot use
229	error instead of exiting the server in case of a problem.	533	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		534	thing you are allowed to do is call C<prio> on it.
230		535
231	=cut	536	=cut
232		537
233	sub async(&) {	538	BEGIN { *async = \&Coro::async_pool }
234	my ($cb) = @_;
235
236	Coro::async {
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}
241
242	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;
244
245	my $guard = Coro::guard { $TICK_WATCHER->start };
246	$TICK_WATCHER->stop;
247	$guard
248	}
249		539
250	=item cf::sync_job { BLOCK }	540	=item cf::sync_job { BLOCK }
251		541
252	The design of crossfire+ requires that the main coro ($Coro::main) is	542	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	543	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	544	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		545	acceptable.
255		546
256	If it must be done, put the blocking parts into C<sync_job>. This will run	547	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	548	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	549	server will be frozen during this time, so the block should either finish
259	fast or be very important.	550	fast or be very important.
…		…
261	=cut	552	=cut
262		553
263	sub sync_job(&) {	554	sub sync_job(&) {
264	my ($job) = @_;	555	my ($job) = @_;
265		556
266	if ($Coro::current == $Coro::main) {	557	if (in_main) {
		558	my $time = AE::time;
		559
267	# this is the main coro, too bad, we have to block	560	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	561	# till the operation succeeds, freezing the server :/
269		562
270	# TODO: use suspend/resume instead	563	#LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	564
272	my $freeze_guard = freeze_mainloop;	565	my $freeze_guard = freeze_mainloop;
273		566
274	my $busy = 1;	567	my $busy = 1;
275	my @res;	568	my @res;
276		569
277	(Coro::async {	570	(async {
		571	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	572	@res = eval { $job->() };
279	warn $@ if $@;	573	error $@ if $@;
280	undef $busy;	574	undef $busy;
281	})->prio (Coro::PRIO_MAX);	575	})->prio (Coro::PRIO_MAX);
282		576
283	while ($busy) {	577	while ($busy) {
		578	if (Coro::nready) {
284	Coro::cede_notself;	579	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	580	} else {
		581	EV::loop EV::LOOP_ONESHOT;
286	}	582	}
		583	}
		584
		585	my $time = AE::time - $time;
		586
		587	$TICK_START += $time; # do not account sync jobs to server load
287		588
288	wantarray ? @res : $res[0]	589	wantarray ? @res : $res[0]
289	} else {	590	} else {
290	# we are in another coroutine, how wonderful, everything just works	591	# we are in another coroutine, how wonderful, everything just works
291		592
292	$job->()	593	$job->()
293	}	594	}
294	}	595	}
295		596
296	=item $coro = cf::coro { BLOCK }	597	=item $coro = cf::async_ext { BLOCK }
297		598
298	Creates and returns a new coro. This coro is automcatially being canceled	599	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	600	extension calling this is being unloaded.
300		601
301	=cut	602	=cut
302		603
303	sub coro(&) {	604	sub async_ext(&) {
304	my $cb = shift;	605	my $cb = shift;
305		606
306	my $coro = &cf::async ($cb);	607	my $coro = &Coro::async ($cb);
307		608
308	$coro->on_destroy (sub {	609	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	610	delete $EXT_CORO{$coro+0};
310	});	611	});
311	$EXT_CORO{$coro+0} = $coro;	612	$EXT_CORO{$coro+0} = $coro;
312		613
313	$coro	614	$coro
314	}	615	}
315		616
316	sub write_runtime {	617	=item fork_call { }, @args
317	my $runtime = cf::localdir . "/runtime";
318		618
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	619	Executes the given code block with the given arguments in a seperate
320	or return;	620	process, returning the results. Everything must be serialisable with
		621	Coro::Storable. May, of course, block. Note that the executed sub may
		622	never block itself or use any form of event handling.
321		623
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	624	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		625
326	aio_fsync $fh	626	sub post_fork {
327	and return;	627	reset_signals;
		628	}
328		629
329	close $fh	630	sub fork_call(&@) {
330	or return;	631	my ($cb, @args) = @_;
331		632
332	aio_rename "$runtime~", $runtime	633	# we seemingly have to make a local copy of the whole thing,
333	and return;	634	# otherwise perl prematurely frees the stuff :/
		635	# TODO: investigate and fix (likely this will be rather laborious)
334		636
		637	my @res = Coro::Util::fork_eval {
		638	cf::post_fork;
		639	&$cb
		640	} @args;
		641
		642	wantarray ? @res : $res[-1]
		643	}
		644
		645	sub objinfo {
335	1	646	(
		647	"counter value" => cf::object::object_count,
		648	"objects created" => cf::object::create_count,
		649	"objects destroyed" => cf::object::destroy_count,
		650	"freelist size" => cf::object::free_count,
		651	"allocated objects" => cf::object::objects_size,
		652	"active objects" => cf::object::actives_size,
		653	)
		654	}
		655
		656	=item $coin = coin_from_name $name
		657
		658	=cut
		659
		660	our %coin_alias = (
		661	"silver" => "silvercoin",
		662	"silvercoin" => "silvercoin",
		663	"silvercoins" => "silvercoin",
		664	"gold" => "goldcoin",
		665	"goldcoin" => "goldcoin",
		666	"goldcoins" => "goldcoin",
		667	"platinum" => "platinacoin",
		668	"platinumcoin" => "platinacoin",
		669	"platinumcoins" => "platinacoin",
		670	"platina" => "platinacoin",
		671	"platinacoin" => "platinacoin",
		672	"platinacoins" => "platinacoin",
		673	"royalty" => "royalty",
		674	"royalties" => "royalty",
		675	);
		676
		677	sub coin_from_name($) {
		678	$coin_alias{$_[0]}
		679	? cf::arch::find $coin_alias{$_[0]}
		680	: undef
		681	}
		682
		683	=item $value = cf::db_get $family => $key
		684
		685	Returns a single value from the environment database.
		686
		687	=item cf::db_put $family => $key => $value
		688
		689	Stores the given C<$value> in the family. It can currently store binary
		690	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		691
		692	=item $db = cf::db_table "name"
		693
		694	Create and/or open a new database table. The string must not be "db" and must be unique
		695	within each server.
		696
		697	=cut
		698
		699	sub db_table($) {
		700	cf::error "db_get called from main context"
		701	if $Coro::current == $Coro::main;
		702
		703	my ($name) = @_;
		704	my $db = BDB::db_create $DB_ENV;
		705
		706	eval {
		707	$db->set_flags (BDB::CHKSUM);
		708
		709	utf8::encode $name;
		710	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		711	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		712	cf::cleanup "db_open(db): $!" if $!;
		713	};
		714	cf::cleanup "db_open(db): $@" if $@;
		715
		716	$db
		717	}
		718
		719	our $DB;
		720
		721	sub db_init {
		722	$DB ||= db_table "db";
		723	}
		724
		725	sub db_get($$) {
		726	my $key = "$_[0]/$_[1]";
		727
		728	cf::error "db_get called from main context"
		729	if $Coro::current == $Coro::main;
		730
		731	BDB::db_get $DB, undef, $key, my $data;
		732
		733	$! ? ()
		734	: $data
		735	}
		736
		737	sub db_put($$$) {
		738	BDB::dbreq_pri 4;
		739	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		740	}
		741
		742	=item cf::cache $id => [$paths...], $processversion => $process
		743
		744	Generic caching function that returns the value of the resource $id,
		745	caching and regenerating as required.
		746
		747	This function can block.
		748
		749	=cut
		750
		751	sub cache {
		752	my ($id, $src, $processversion, $process) = @_;
		753
		754	my $meta =
		755	join "\x00",
		756	$processversion,
		757	map {
		758	aio_stat $_
		759	and Carp::croak "$_: $!";
		760
		761	($_, (stat _)[7,9])
		762	} @$src;
		763
		764	my $dbmeta = db_get cache => "$id/meta";
		765	if ($dbmeta ne $meta) {
		766	# changed, we may need to process
		767
		768	my @data;
		769	my $md5;
		770
		771	for (0 .. $#$src) {
		772	0 <= aio_load $src->[$_], $data[$_]
		773	or Carp::croak "$src->[$_]: $!";
		774	}
		775
		776	# if processing is expensive, check
		777	# checksum first
		778	if (1) {
		779	$md5 =
		780	join "\x00",
		781	$processversion,
		782	map {
		783	cf::cede_to_tick;
		784	($src->[$_], Digest::MD5::md5_hex $data[$_])
		785	} 0.. $#$src;
		786
		787
		788	my $dbmd5 = db_get cache => "$id/md5";
		789	if ($dbmd5 eq $md5) {
		790	db_put cache => "$id/meta", $meta;
		791
		792	return db_get cache => "$id/data";
		793	}
		794	}
		795
		796	my $t1 = Time::HiRes::time;
		797	my $data = $process->(\@data);
		798	my $t2 = Time::HiRes::time;
		799
		800	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		801
		802	db_put cache => "$id/data", $data;
		803	db_put cache => "$id/md5" , $md5;
		804	db_put cache => "$id/meta", $meta;
		805
		806	return $data;
		807	}
		808
		809	db_get cache => "$id/data"
		810	}
		811
		812	=item cf::datalog type => key => value, ...
		813
		814	Log a datalog packet of the given type with the given key-value pairs.
		815
		816	=cut
		817
		818	sub datalog($@) {
		819	my ($type, %kv) = @_;
		820	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
336	}	821	}
337		822
338	=back	823	=back
339		824
340	=cut	825	=cut
341		826
342	#############################################################################	827	#############################################################################
343		828
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461
462	#############################################################################
463
464	=head2 ATTACHABLE OBJECTS	829	=head2 ATTACHABLE OBJECTS
465		830
466	Many objects in crossfire are so-called attachable objects. That means you can	831	Many objects in deliantra are so-called attachable objects. That means you can
467	attach callbacks/event handlers (a collection of which is called an "attachment")	832	attach callbacks/event handlers (a collection of which is called an "attachment")
468	to it. All such attachable objects support the following methods.	833	to it. All such attachable objects support the following methods.
469		834
470	In the following description, CLASS can be any of C<global>, C<object>	835	In the following description, CLASS can be any of C<global>, C<object>
471	C<player>, C<client> or C<map> (i.e. the attachable objects in	836	C<player>, C<client> or C<map> (i.e. the attachable objects in
472	crossfire+).	837	Deliantra).
473		838
474	=over 4	839	=over 4
475		840
476	=item $attachable->attach ($attachment, key => $value...)	841	=item $attachable->attach ($attachment, key => $value...)
477		842
…		…
521	=item cf::CLASS::attachment $name, ...	886	=item cf::CLASS::attachment $name, ...
522		887
523	Register an attachment by C<$name> through which attachable objects of the	888	Register an attachment by C<$name> through which attachable objects of the
524	given CLASS can refer to this attachment.	889	given CLASS can refer to this attachment.
525		890
526	Some classes such as crossfire maps and objects can specify attachments	891	Some classes such as deliantra maps and objects can specify attachments
527	that are attached at load/instantiate time, thus the need for a name.	892	that are attached at load/instantiate time, thus the need for a name.
528		893
529	These calls expect any number of the following handler/hook descriptions:	894	These calls expect any number of the following handler/hook descriptions:
530		895
531	=over 4	896	=over 4
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	956	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	957	our @CB_MAP = ();
593		958
594	my %attachment;	959	my %attachment;
595		960
		961	sub cf::attachable::thawer_merge {
		962	# simply override everything except _meta
		963	local $_[0]{_meta};
		964	%{$_[0]} = %{$_[1]};
		965	}
		966
596	sub _attach_cb($$$$) {	967	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	968	my ($registry, $event, $prio, $cb) = @_;
598		969
599	use sort 'stable';	970	use sort 'stable';
600		971
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	1005	$registry = $CB_TYPE[$object_type] ||= [];
635		1006
636	} elsif ($type eq "subtype") {	1007	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	1008	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	1009	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1010	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		1011
641	} elsif ($type eq "package") {	1012	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	1013	my $pkg = shift @arg;
643		1014
644	while (my ($name, $id) = each %cb_id) {	1015	while (my ($name, $id) = each %cb_id) {
…		…
649		1020
650	} elsif (exists $cb_id{$type}) {	1021	} elsif (exists $cb_id{$type}) {
651	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1022	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
652		1023
653	} elsif (ref $type) {	1024	} elsif (ref $type) {
654	warn "attaching objects not supported, ignoring.\n";	1025	error "attaching objects not supported, ignoring.\n";
655		1026
656	} else {	1027	} else {
657	shift @arg;	1028	shift @arg;
658	warn "attach argument '$type' not supported, ignoring.\n";	1029	error "attach argument '$type' not supported, ignoring.\n";
659	}	1030	}
660	}	1031	}
661	}	1032	}
662		1033
663	sub _object_attach {	1034	sub _object_attach {
…		…
673	_attach $registry, $klass, @attach;	1044	_attach $registry, $klass, @attach;
674	}	1045	}
675		1046
676	$obj->{$name} = \%arg;	1047	$obj->{$name} = \%arg;
677	} else {	1048	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	1049	info "object uses attachment '$name' which is not available, postponing.\n";
679	}	1050	}
680		1051
681	$obj->{_attachment}{$name} = undef;	1052	$obj->{_attachment}{$name} = undef;
682	}	1053	}
683		1054
…		…
685	if (ref $_[0]) {	1056	if (ref $_[0]) {
686	_object_attach @_;	1057	_object_attach @_;
687	} else {	1058	} else {
688	_attach shift->_attach_registry, @_;	1059	_attach shift->_attach_registry, @_;
689	}	1060	}
		1061	_recalc_want;
690	};	1062	};
691		1063
692	# all those should be optimised	1064	# all those should be optimised
693	sub cf::attachable::detach {	1065	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	1066	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	1069	delete $obj->{_attachment}{$name};
698	reattach ($obj);	1070	reattach ($obj);
699	} else {	1071	} else {
700	Carp::croak "cannot, currently, detach class attachments";	1072	Carp::croak "cannot, currently, detach class attachments";
701	}	1073	}
		1074	_recalc_want;
702	};	1075	};
703		1076
704	sub cf::attachable::attached {	1077	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	1078	my ($obj, $name) = @_;
706		1079
…		…
721	";	1094	";
722	die if $@;	1095	die if $@;
723	}	1096	}
724		1097
725	our $override;	1098	our $override;
726	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1099	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
727		1100
728	sub override {	1101	sub override {
729	$override = 1;	1102	$override = 1;
730	@invoke_results = ();	1103	@INVOKE_RESULTS = (@_);
731	}	1104	}
732		1105
733	sub do_invoke {	1106	sub do_invoke {
734	my $event = shift;	1107	my $event = shift;
735	my $callbacks = shift;	1108	my $callbacks = shift;
736		1109
737	@invoke_results = ();	1110	@INVOKE_RESULTS = ();
738		1111
739	local $override;	1112	local $override;
740		1113
741	for (@$callbacks) {	1114	for (@$callbacks) {
742	eval { &{$_->[1]} };	1115	eval { &{$_->[1]} };
743		1116
744	if ($@) {	1117	if ($@) {
745	warn "$@";
746	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1118	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
747	override;	1119	override;
748	}	1120	}
749		1121
750	return 1 if $override;	1122	return 1 if $override;
751	}	1123	}
752		1124
753	0	1125	0
754	}	1126	}
755		1127
756	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1128	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
757		1129
758	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1130	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
759		1131
760	Generate an object-specific event with the given arguments.	1132	Generate an object-specific event with the given arguments.
761		1133
762	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1134	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
763	removed in future versions), and there is no public API to access override	1135	removed in future versions), and there is no public API to access override
764	results (if you must, access C<@cf::invoke_results> directly).	1136	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		1137
766	=back	1138	=back
767		1139
768	=cut	1140	=cut
769		1141
770	#############################################################################	1142	#############################################################################
771	# object support	1143	# object support
		1144
		1145	sub _object_equal($$);
		1146	sub _object_equal($$) {
		1147	my ($a, $b) = @_;
		1148
		1149	return 0 unless (ref $a) eq (ref $b);
		1150
		1151	if ("HASH" eq ref $a) {
		1152	my @ka = keys %$a;
		1153	my @kb = keys %$b;
		1154
		1155	return 0 if @ka != @kb;
		1156
		1157	for (0 .. $#ka) {
		1158	return 0 unless $ka[$_] eq $kb[$_];
		1159	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1160	}
		1161
		1162	} elsif ("ARRAY" eq ref $a) {
		1163
		1164	return 0 if @$a != @$b;
		1165
		1166	for (0 .. $#$a) {
		1167	return 0 unless _object_equal $a->[$_], $b->[$_];
		1168	}
		1169
		1170	} elsif ($a ne $b) {
		1171	return 0;
		1172	}
		1173
		1174	1
		1175	}
		1176
		1177	our $SLOW_MERGES;#d#
		1178	sub _can_merge {
		1179	my ($ob1, $ob2) = @_;
		1180
		1181	++$SLOW_MERGES;#d#
		1182
		1183	# we do the slow way here
		1184	return _object_equal $ob1, $ob2
		1185	}
772		1186
773	sub reattach {	1187	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	1188	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	1189	my ($obj) = @_;
		1190
		1191	# no longer needed after getting rid of delete_package?
		1192	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		1193
777	my $registry = $obj->registry;	1194	my $registry = $obj->registry;
778		1195
779	@$registry = ();	1196	@$registry = ();
780		1197
…		…
785	for (@$attach) {	1202	for (@$attach) {
786	my ($klass, @attach) = @$_;	1203	my ($klass, @attach) = @$_;
787	_attach $registry, $klass, @attach;	1204	_attach $registry, $klass, @attach;
788	}	1205	}
789	} else {	1206	} else {
790	warn "object uses attachment '$name' that is not available, postponing.\n";	1207	info "object uses attachment '$name' that is not available, postponing.\n";
791	}	1208	}
792	}	1209	}
793	}	1210	}
794		1211
795	cf::attachable->attach (	1212	cf::attachable->attach (
796	prio => -1000000,	1213	prio => -1000000,
797	on_instantiate => sub {	1214	on_instantiate => sub {
798	my ($obj, $data) = @_;	1215	my ($obj, $data) = @_;
799		1216
800	$data = from_json $data;	1217	$data = decode_json $data;
801		1218
802	for (@$data) {	1219	for (@$data) {
803	my ($name, $args) = @$_;	1220	my ($name, $args) = @$_;
804		1221
805	$obj->attach ($name, %{$args || {} });	1222	$obj->attach ($name, %{$args || {} });
…		…
821	sub object_freezer_save {	1238	sub object_freezer_save {
822	my ($filename, $rdata, $objs) = @_;	1239	my ($filename, $rdata, $objs) = @_;
823		1240
824	sync_job {	1241	sync_job {
825	if (length $$rdata) {	1242	if (length $$rdata) {
		1243	utf8::decode (my $decname = $filename);
826	warn sprintf "saving %s (%d,%d)\n",	1244	trace sprintf "saving %s (%d,%d)\n",
827	$filename, length $$rdata, scalar @$objs;	1245	$decname, length $$rdata, scalar @$objs
		1246	if $VERBOSE_IO;
828		1247
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1248	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1249	aio_chmod $fh, SAVE_MODE;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1250	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1251	if ($cf::USE_FSYNC) {
		1252	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;
832	aio_fsync $fh;	1253	aio_fsync $fh;
		1254	}
833	close $fh;	1255	aio_close $fh;
834		1256
835	if (@$objs) {	1257	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1258	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	1259	aio_chmod $fh, SAVE_MODE;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	1260	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	1261	aio_write $fh, 0, (length $data), $data, 0;
		1262	if ($cf::USE_FSYNC) {
		1263	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;
840	aio_fsync $fh;	1264	aio_fsync $fh;
		1265	}
841	close $fh;	1266	aio_close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	1267	aio_rename "$filename.pst~", "$filename.pst";
843	}	1268	}
844	} else {	1269	} else {
845	aio_unlink "$filename.pst";	1270	aio_unlink "$filename.pst";
846	}	1271	}
847		1272
848	aio_rename "$filename~", $filename;	1273	aio_rename "$filename~", $filename;
		1274
		1275	$filename =~ s%/[^/]+$%%;
		1276	aio_pathsync $filename if $cf::USE_FSYNC;
849	} else {	1277	} else {
850	warn "FATAL: $filename~: $!\n";	1278	error "unable to save objects: $filename~: $!\n";
851	}	1279	}
852	} else {	1280	} else {
853	aio_unlink $filename;	1281	aio_unlink $filename;
854	aio_unlink "$filename.pst";	1282	aio_unlink "$filename.pst";
855	}	1283	}
856	}	1284	};
857	}	1285	}
858		1286
859	sub object_freezer_as_string {	1287	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	1288	my ($rdata, $objs) = @_;
861		1289
…		…
873	or return;	1301	or return;
874		1302
875	unless (aio_stat "$filename.pst") {	1303	unless (aio_stat "$filename.pst") {
876	(aio_load "$filename.pst", $av) >= 0	1304	(aio_load "$filename.pst", $av) >= 0
877	or return;	1305	or return;
		1306
878	$av = eval { (Storable::thaw $av)->{objs} };	1307	my $st = eval { Coro::Storable::thaw $av };
		1308	$av = $st->{objs};
879	}	1309	}
880		1310
		1311	utf8::decode (my $decname = $filename);
881	warn sprintf "loading %s (%d)\n",	1312	trace sprintf "loading %s (%d,%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1313	$decname, length $data, scalar @{$av || []}
		1314	if $VERBOSE_IO;
		1315
883	return ($data, $av);	1316	($data, $av)
884	}	1317	}
		1318
		1319	=head2 COMMAND CALLBACKS
		1320
		1321	=over 4
		1322
		1323	=cut
885		1324
886	#############################################################################	1325	#############################################################################
887	# command handling &c	1326	# command handling &c
888		1327
889	=item cf::register_command $name => \&callback($ob,$args);	1328	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1341	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1342	}
904		1343
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1344	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1345
907	Register a callbackf ro execution when the client sends an extcmd packet.	1346	Register a callback for execution when the client sends an (synchronous)
		1347	extcmd packet. Ext commands will be processed in the order they are
		1348	received by the server, like other user commands. The first argument is
		1349	the logged-in player. Ext commands can only be processed after a player
		1350	has logged in successfully.
908		1351
909	If the callback returns something, it is sent back as if reply was being	1352	If the callback returns something, it is sent back as if reply was being
910	called.	1353	called.
911		1354
		1355	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1356
		1357	Register a callback for execution when the client sends an (asynchronous)
		1358	exticmd packet. Exti commands are processed by the server as soon as they
		1359	are received, i.e. out of order w.r.t. other commands. The first argument
		1360	is a client socket. Exti commands can be received anytime, even before
		1361	log-in.
		1362
		1363	If the callback returns something, it is sent back as if reply was being
		1364	called.
		1365
912	=cut	1366	=cut
913		1367
914	sub register_extcmd {	1368	sub register_extcmd {
915	my ($name, $cb) = @_;	1369	my ($name, $cb) = @_;
916		1370
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1371	$EXTCMD{$name} = $cb;
921	}	1372	}
		1373
		1374	sub register_exticmd {
		1375	my ($name, $cb) = @_;
		1376
		1377	$EXTICMD{$name} = $cb;
		1378	}
		1379
		1380	use File::Glob ();
922		1381
923	cf::player->attach (	1382	cf::player->attach (
924	on_command => sub {	1383	on_unknown_command => sub {
925	my ($pl, $name, $params) = @_;	1384	my ($pl, $name, $params) = @_;
926		1385
927	my $cb = $COMMAND{$name}	1386	my $cb = $COMMAND{$name}
928	or return;	1387	or return;
929		1388
…		…
934	cf::override;	1393	cf::override;
935	},	1394	},
936	on_extcmd => sub {	1395	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1396	my ($pl, $buf) = @_;
938		1397
939	my $msg = eval { from_json $buf };	1398	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1399
941	if (ref $msg) {	1400	if (ref $msg) {
		1401	my ($type, $reply, @payload) =
		1402	"ARRAY" eq ref $msg
		1403	? @$msg
		1404	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1405
		1406	my @reply;
		1407
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1408	if (my $cb = $EXTCMD{$type}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1409	@reply = $cb->($pl, @payload);
944	$pl->ext_reply ($msg->{msgid}, %reply);
945	}
946	}	1410	}
		1411
		1412	$pl->ext_reply ($reply, @reply)
		1413	if $reply;
		1414
947	} else {	1415	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1416	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
949	}	1417	}
950		1418
951	cf::override;	1419	cf::override;
952	},	1420	},
953	);	1421	);
954		1422
955	sub register {	1423	# "readahead" all extensions
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	1424	sub cache_extensions {
962	my ($path) = @_;	1425	my $grp = IO::AIO::aio_group;
963		1426
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1427	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
965	my $base = $1;	1428	for (grep /\.ext$/, @{$_[0]}) {
966	my $pkg = $1;	1429	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969
970	warn "loading '$path' into '$pkg'\n";
971
972	open my $fh, "<:utf8", $path
973	or die "$path: $!";
974
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }
1004
1005	# remove commands
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}	1430	}
1014	}	1431	};
1015		1432
1016	# remove extcmds	1433	$grp
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}	1434	}
1030		1435
1031	sub load_extensions {	1436	sub load_extensions {
		1437	info "loading extensions...";
		1438
		1439	cf::sync_job {
		1440	my %todo;
		1441
1032	for my $ext (<$LIBDIR/*.ext>) {	1442	for my $path (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;	1443	next unless -r $path;
1034	eval {	1444
1035	load_extension $ext;	1445	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1446	my $base = $1;
		1447	my $pkg = $1;
		1448	$pkg =~ s/[^[:word:]]/_/g;
		1449	$pkg = "ext::$pkg";
		1450
		1451	open my $fh, "<:utf8", $path
		1452	or die "$path: $!";
		1453
		1454	my $source = do { local $/; <$fh> };
		1455
		1456	my %ext = (
		1457	path => $path,
		1458	base => $base,
		1459	pkg => $pkg,
		1460	);
		1461
		1462	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1463	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1464
		1465	$ext{source} =
		1466	"package $pkg; use common::sense;\n"
		1467	. "#line 1 \"$path\"\n{\n"
		1468	. $source
		1469	. "\n};\n1";
		1470
		1471	$todo{$base} = \%ext;
		1472	}
		1473
		1474	my $pass = 0;
		1475	my %done;
		1476	while (%todo) {
		1477	my $progress;
		1478
		1479	++$pass;
		1480
		1481	ext:
		1482	while (my ($k, $v) = each %todo) {
		1483	for (split /,\s*/, $v->{meta}{depends}) {
		1484	next ext
		1485	unless exists $done{$_};
		1486	}
		1487
		1488	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1489
		1490	my $active = eval $v->{source};
		1491
		1492	if (length $@) {
		1493	error "$v->{path}: $@\n";
		1494
		1495	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1496	if exists $v->{meta}{mandatory};
		1497
		1498	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1499	delete $todo{$k};
		1500	} else {
		1501	$done{$k} = delete $todo{$k};
		1502	push @EXTS, $v->{pkg};
		1503	$progress = 1;
		1504
		1505	info "$v->{base}: extension inactive.\n"
		1506	unless $active;
		1507	}
1036	1	1508	}
1037	} or warn "$ext not loaded: $@";	1509
		1510	unless ($progress) {
		1511	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1512
		1513	while (my ($k, $v) = each %todo) {
		1514	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1515	if exists $v->{meta}{mandatory};
		1516	}
		1517	}
		1518	}
1038	}	1519	};
1039	}	1520	}
1040		1521
1041	#############################################################################	1522	#############################################################################
1042	# load/save/clean perl data associated with a map
1043		1523
1044	*cf::mapsupport::on_clean = sub {	1524	=back
		1525
		1526	=head2 CORE EXTENSIONS
		1527
		1528	Functions and methods that extend core deliantra objects.
		1529
		1530	=cut
		1531
		1532	package cf::player;
		1533
		1534	use Coro::AIO;
		1535
		1536	=head3 cf::player
		1537
		1538	=over 4
		1539
		1540	=item cf::player::num_playing
		1541
		1542	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1543
		1544	=cut
		1545
		1546	sub num_playing {
		1547	scalar grep
		1548	$_->ob->map
		1549	&& !$_->hidden
		1550	&& !$_->ob->flag (cf::FLAG_WIZ),
		1551	cf::player::list
		1552	}
		1553
		1554	=item cf::player::find $login
		1555
		1556	Returns the given player object, loading it if necessary (might block).
		1557
		1558	=cut
		1559
		1560	sub playerdir($) {
		1561	"$PLAYERDIR/"
		1562	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1563	}
		1564
		1565	sub path($) {
		1566	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1567
		1568	(playerdir $login) . "/playerdata"
		1569	}
		1570
		1571	sub find_active($) {
		1572	$cf::PLAYER{$_[0]}
		1573	and $cf::PLAYER{$_[0]}->active
		1574	and $cf::PLAYER{$_[0]}
		1575	}
		1576
		1577	sub exists($) {
1045	my ($map) = @_;	1578	my ($login) = @_;
1046		1579
1047	my $path = $map->tmpname;	1580	$cf::PLAYER{$login}
1048	defined $path or return;	1581	or !aio_stat path $login
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}	1582	}
1061		1583
1062	# TODO: compatibility cruft, remove when no longer needed	1584	sub find($) {
		1585	return $cf::PLAYER{$_[0]} || do {
		1586	my $login = $_[0];
		1587
		1588	my $guard = cf::lock_acquire "user_find:$login";
		1589
		1590	$cf::PLAYER{$_[0]} || do {
		1591	# rename old playerfiles to new ones
		1592	#TODO: remove when no longer required
		1593	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1594	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1595	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1596	aio_unlink +(playerdir $login) . "/$login.pl";
		1597
		1598	my $f = new_from_file cf::object::thawer path $login
		1599	or return;
		1600
		1601	my $pl = cf::player::load_pl $f
		1602	or return;
		1603
		1604	local $cf::PLAYER_LOADING{$login} = $pl;
		1605	$f->resolve_delayed_derefs;
		1606	$cf::PLAYER{$login} = $pl
		1607	}
		1608	}
		1609	}
		1610
1063	cf::player->attach (	1611	cf::player->attach (
1064	on_load => sub {	1612	on_load => sub {
1065	my ($pl, $path) = @_;	1613	my ($pl, $path) = @_;
1066		1614
1067	for my $o (all_objects $pl->ob) {	1615	# restore slots saved in save, below
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1616	my $slots = delete $pl->{_slots};
1069	$o->set_ob_key_value ("_perl_data");
1070		1617
1071	%$o = %{ Storable::thaw pack "H*", $value };	1618	$pl->ob->current_weapon ($slots->[0]);
1072	}	1619	$pl->combat_ob ($slots->[1]);
1073	}	1620	$pl->ranged_ob ($slots->[2]);
1074	},	1621	},
1075	);	1622	);
1076		1623
1077	#############################################################################	1624	sub save($) {
		1625	my ($pl) = @_;
1078		1626
1079	=head2 CORE EXTENSIONS	1627	return if $pl->{deny_save};
1080		1628
1081	Functions and methods that extend core crossfire objects.	1629	my $path = path $pl;
		1630	my $guard = cf::lock_acquire "user_save:$path";
1082		1631
1083	=head3 cf::player	1632	return if $pl->{deny_save};
		1633
		1634	aio_mkdir playerdir $pl, 0770;
		1635	$pl->{last_save} = $cf::RUNTIME;
		1636
		1637	cf::get_slot 0.01;
		1638
		1639	# save slots, to be restored later
		1640	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1641
		1642	$pl->save_pl ($path);
		1643	cf::cede_to_tick;
		1644	}
		1645
		1646	sub new($) {
		1647	my ($login) = @_;
		1648
		1649	my $self = create;
		1650
		1651	$self->ob->name ($login);
		1652	$self->{deny_save} = 1;
		1653
		1654	$cf::PLAYER{$login} = $self;
		1655
		1656	$self
		1657	}
		1658
		1659	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1660
		1661	=cut
		1662
		1663	sub send_msg {
		1664	my $ns = shift->ns
		1665	or return;
		1666	$ns->send_msg (@_);
		1667	}
		1668
		1669	=item $pl->quit_character
		1670
		1671	Nukes the player without looking back. If logged in, the connection will
		1672	be destroyed. May block for a long time.
		1673
		1674	=cut
		1675
		1676	sub quit_character {
		1677	my ($pl) = @_;
		1678
		1679	my $name = $pl->ob->name;
		1680
		1681	$pl->{deny_save} = 1;
		1682	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1683
		1684	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1685	$pl->deactivate;
		1686
		1687	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1688	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1689	ext::highscore::check ($pl->ob);
		1690
		1691	$pl->ns->destroy if $pl->ns;
		1692
		1693	my $path = playerdir $pl;
		1694	my $temp = "$path~$cf::RUNTIME~deleting~";
		1695	aio_rename $path, $temp;
		1696	delete $cf::PLAYER{$pl->ob->name};
		1697	$pl->destroy;
		1698
		1699	my $prefix = qr<^~\Q$name\E/>;
		1700
		1701	# nuke player maps
		1702	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1703
		1704	IO::AIO::aio_rmtree $temp;
		1705	}
		1706
		1707	=item $pl->kick
		1708
		1709	Kicks a player out of the game. This destroys the connection.
		1710
		1711	=cut
		1712
		1713	sub kick {
		1714	my ($pl, $kicker) = @_;
		1715
		1716	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1717	$pl->killer ("kicked");
		1718	$pl->ns->destroy;
		1719	}
		1720
		1721	=item cf::player::list_logins
		1722
		1723	Returns am arrayref of all valid playernames in the system, can take a
		1724	while and may block, so not sync_job-capable, ever.
		1725
		1726	=cut
		1727
		1728	sub list_logins {
		1729	my $dirs = aio_readdir $PLAYERDIR
		1730	or return [];
		1731
		1732	my @logins;
		1733
		1734	for my $login (@$dirs) {
		1735	my $path = path $login;
		1736
		1737	# a .pst is a dead give-away for a valid player
		1738	# if no pst file found, open and chekc for blocked users
		1739	if (aio_stat "$path.pst") {
		1740	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1741	aio_read $fh, 0, 512, my $buf, 0 or next;
		1742	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1743	}
		1744
		1745	utf8::decode $login;
		1746	push @logins, $login;
		1747	}
		1748
		1749	\@logins
		1750	}
		1751
		1752	=item $player->maps
		1753
		1754	=item cf::player::maps $login
		1755
		1756	Returns an arrayref of map paths that are private for this
		1757	player. May block.
		1758
		1759	=cut
		1760
		1761	sub maps($) {
		1762	my ($pl) = @_;
		1763
		1764	$pl = ref $pl ? $pl->ob->name : $pl;
		1765
		1766	my $files = aio_readdir playerdir $pl
		1767	or return;
		1768
		1769	my @paths;
		1770
		1771	for (@$files) {
		1772	utf8::decode $_;
		1773	next if /\.(?:pl|pst)$/;
		1774	next unless /^$PATH_SEP/o;
		1775
		1776	push @paths, cf::map::normalise "~$pl/$_";
		1777	}
		1778
		1779	\@paths
		1780	}
		1781
		1782	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1783
		1784	Expand deliantra pod fragments into protocol xml.
		1785
		1786	=item $player->ext_reply ($msgid, @msg)
		1787
		1788	Sends an ext reply to the player.
		1789
		1790	=cut
		1791
		1792	sub ext_reply($$@) {
		1793	my ($self, $id, @msg) = @_;
		1794
		1795	$self->ns->ext_reply ($id, @msg)
		1796	}
		1797
		1798	=item $player->ext_msg ($type, @msg)
		1799
		1800	Sends an ext event to the client.
		1801
		1802	=cut
		1803
		1804	sub ext_msg($$@) {
		1805	my ($self, $type, @msg) = @_;
		1806
		1807	$self->ns->ext_msg ($type, @msg);
		1808	}
		1809
		1810	=head3 cf::region
1084		1811
1085	=over 4	1812	=over 4
1086		1813
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut	1814	=cut
1092		1815
1093	sub cf::player::exists($) {	1816	package cf::region;
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097		1817
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)	1818	=item cf::region::find_by_path $path
1099		1819
1100	Sends an ext reply to the player.	1820	Tries to decuce the likely region for a map knowing only its path.
1101		1821
1102	=cut	1822	=cut
1103		1823
1104	sub cf::player::ext_reply($$$%) {	1824	sub find_by_path($) {
1105	my ($self, $id, %msg) = @_;	1825	my ($path) = @_;
1106		1826
1107	$msg{msgid} = $id;	1827	$path =~ s/^~[^\/]*//; # skip ~login
1108		1828
1109	$self->send ("ext " . to_json \%msg);	1829	my ($match, $specificity);
		1830
		1831	for my $region (list) {
		1832	if ($region->{match} && $path =~ $region->{match}) {
		1833	($match, $specificity) = ($region, $region->specificity)
		1834	if $region->specificity > $specificity;
		1835	}
		1836	}
		1837
		1838	$match
1110	}	1839	}
1111		1840
1112	=back	1841	=back
1113
1114		1842
1115	=head3 cf::map	1843	=head3 cf::map
1116		1844
1117	=over 4	1845	=over 4
1118		1846
…		…
1121	package cf::map;	1849	package cf::map;
1122		1850
1123	use Fcntl;	1851	use Fcntl;
1124	use Coro::AIO;	1852	use Coro::AIO;
1125		1853
		1854	use overload
		1855	'""' => \&as_string,
		1856	fallback => 1;
		1857
1126	our $MAX_RESET = 3600;	1858	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1859	our $DEFAULT_RESET = 3000;
1128		1860
1129	sub generate_random_map {	1861	sub generate_random_map {
		1862	my ($self, $rmp) = @_;
		1863
		1864	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1865
		1866	$self->_create_random_map ($rmp);
		1867	}
		1868
		1869	=item cf::map->register ($regex, $prio)
		1870
		1871	Register a handler for the map path matching the given regex at the
		1872	givne priority (higher is better, built-in handlers have priority 0, the
		1873	default).
		1874
		1875	=cut
		1876
		1877	sub register {
		1878	my (undef, $regex, $prio) = @_;
		1879	my $pkg = caller;
		1880
		1881	push @{"$pkg\::ISA"}, __PACKAGE__;
		1882
		1883	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1884	}
		1885
		1886	# also paths starting with '/'
		1887	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1888
		1889	sub thawer_merge {
		1890	my ($self, $merge) = @_;
		1891
		1892	# we have to keep some variables in memory intact
		1893	local $self->{path};
		1894	local $self->{load_path};
		1895
		1896	$self->SUPER::thawer_merge ($merge);
		1897	}
		1898
		1899	sub normalise {
1130	my ($path, $rmp) = @_;	1900	my ($path, $base) = @_;
1131		1901
1132	# mit "rum" bekleckern, nicht	1902	$path = "$path"; # make sure it's a string
1133	cf::map::_create_random_map	1903
		1904	$path =~ s/\.map$//;
		1905
		1906	# map plan:
		1907	#
		1908	# /! non-realised random map exit (special hack!)
		1909	# {... are special paths that are not being touched
		1910	# ?xxx/... are special absolute paths
		1911	# ?random/... random maps
		1912	# /... normal maps
		1913	# ~user/... per-player map of a specific user
		1914
		1915	$path =~ s/$PATH_SEP/\//go;
		1916
		1917	# treat it as relative path if it starts with
		1918	# something that looks reasonable
		1919	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1920	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1921
		1922	$base =~ s{[^/]+/?$}{};
		1923	$path = "$base/$path";
		1924	}
		1925
		1926	for ($path) {
		1927	redo if s{/\.?/}{/};
		1928	redo if s{/[^/]+/\.\./}{/};
		1929	}
		1930
1134	$path,	1931	$path
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})
1146	}	1932	}
1147		1933
1148	# and all this just because we cannot iterate over	1934	sub new_from_path {
1149	# all maps in C++...	1935	my (undef, $path, $base) = @_;
1150	sub change_all_map_light {	1936
		1937	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1938
		1939	$path = normalise $path, $base;
		1940
		1941	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1942	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1943	my $self = bless cf::map::new, $pkg;
		1944	$self->{path} = $path; $self->path ($path);
		1945	$self->init; # pass $1 etc.
		1946	return $self;
		1947	}
		1948	}
		1949
		1950	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1951	()
		1952	}
		1953
		1954	sub init {
1151	my ($change) = @_;	1955	my ($self) = @_;
1152		1956
1153	$_->change_map_light ($change)	1957	$self
1154	for grep $_->outdoor, values %cf::MAP;
1155	}	1958	}
1156		1959
		1960	sub as_string {
		1961	my ($self) = @_;
		1962
		1963	"$self->{path}"
		1964	}
		1965
		1966	# the displayed name, this is a one way mapping
		1967	sub visible_name {
		1968	&as_string
		1969	}
		1970
		1971	# the original (read-only) location
		1972	sub load_path {
		1973	my ($self) = @_;
		1974
		1975	"$MAPDIR/$self->{path}.map"
		1976	}
		1977
		1978	# the temporary/swap location
		1979	sub save_path {
		1980	my ($self) = @_;
		1981
		1982	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1983	"$TMPDIR/$path.map"
		1984	}
		1985
		1986	# the unique path, undef == no special unique path
		1987	sub uniq_path {
		1988	my ($self) = @_;
		1989
		1990	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1991	"$UNIQUEDIR/$path"
		1992	}
		1993
		1994	sub decay_objects {
		1995	my ($self) = @_;
		1996
		1997	return if $self->{deny_reset};
		1998
		1999	$self->do_decay_objects;
		2000	}
		2001
		2002	sub unlink_save {
		2003	my ($self) = @_;
		2004
		2005	utf8::encode (my $save = $self->save_path);
		2006	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2007	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2008	}
		2009
1157	sub try_load_header($) {	2010	sub load_header_from($) {
1158	my ($path) = @_;	2011	my ($self, $path) = @_;
1159		2012
1160	utf8::encode $path;	2013	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	2014	my $f = new_from_file cf::object::thawer $path
1162	or return;	2015	or return;
1163		2016
1164	my $map = cf::map::new	2017	$self->_load_header ($f)
1165	or return;	2018	or return;
1166		2019
1167	# for better error messages only, will be overwritten	2020	local $MAP_LOADING{$self->{path}} = $self;
1168	$map->path ($path);	2021	$f->resolve_delayed_derefs;
1169		2022
1170	$map->load_header ($path)	2023	$self->{load_path} = $path;
		2024
		2025	1
		2026	}
		2027
		2028	sub load_header_orig {
		2029	my ($self) = @_;
		2030
		2031	$self->load_header_from ($self->load_path)
		2032	}
		2033
		2034	sub load_header_temp {
		2035	my ($self) = @_;
		2036
		2037	$self->load_header_from ($self->save_path)
		2038	}
		2039
		2040	sub prepare_temp {
		2041	my ($self) = @_;
		2042
		2043	$self->last_access ((delete $self->{last_access})
		2044	|| $cf::RUNTIME); #d#
		2045	# safety
		2046	$self->{instantiate_time} = $cf::RUNTIME
		2047	if $self->{instantiate_time} > $cf::RUNTIME;
		2048	}
		2049
		2050	sub prepare_orig {
		2051	my ($self) = @_;
		2052
		2053	$self->{load_original} = 1;
		2054	$self->{instantiate_time} = $cf::RUNTIME;
		2055	$self->last_access ($cf::RUNTIME);
		2056	$self->instantiate;
		2057	}
		2058
		2059	sub load_header {
		2060	my ($self) = @_;
		2061
		2062	if ($self->load_header_temp) {
		2063	$self->prepare_temp;
		2064	} else {
		2065	$self->load_header_orig
1171	or return;	2066	or return;
		2067	$self->prepare_orig;
		2068	}
1172		2069
1173	$map->{load_path} = $path;	2070	$self->{deny_reset} = 1
		2071	if $self->no_reset;
1174		2072
1175	$map	2073	$self->default_region (cf::region::find_by_path $self->{path})
		2074	unless $self->default_region;
		2075
		2076	1
1176	}	2077	}
1177		2078
1178	sub find;	2079	sub find;
1179	sub find {	2080	sub find {
1180	my ($path, $origin) = @_;	2081	my ($path, $origin) = @_;
1181		2082
1182	#warn "find<$path,$origin>\n";#d#	2083	cf::cede_to_tick;
1183		2084
1184	$path = new cf::path $path, $origin && $origin->path;	2085	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		2086
1187	cf::lock_wait "map_find:$key";	2087	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1188
1189	$cf::MAP{$key} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	2088	my $guard2 = cf::lock_acquire "map_find:$path";
1191		2089
1192	# do it the slow way	2090	$cf::MAP{$path} || do {
1193	my $map = try_load_header $path->save_path;	2091	my $map = new_from_path cf::map $path
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	2092	or return;
1211		2093
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	2094	$map->{last_save} = $cf::RUNTIME;
1224		2095
1225	Coro::cede;	2096	$map->load_header
		2097	or return;
1226		2098
1227	if ($map->should_reset) {	2099	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2100	# doing this can freeze the server in a sync job, obviously
		2101	#$cf::WAIT_FOR_TICK->wait;
		2102	undef $guard2;
		2103	undef $guard1;
1228	$map->reset;	2104	$map->reset;
1229	undef $guard;
1230	$map = find $path	2105	return find $path;
1231	or return;
1232	}	2106	}
1233		2107
1234	$cf::MAP{$key} = $map	2108	$cf::MAP{$path} = $map
1235	}	2109	}
1236	}	2110	}
		2111
		2112	sub pre_load { }
		2113	#sub post_load { } # XS
1237		2114
1238	sub load {	2115	sub load {
1239	my ($self) = @_;	2116	my ($self) = @_;
1240		2117
		2118	local $self->{deny_reset} = 1; # loading can take a long time
		2119
1241	my $path = $self->{path};	2120	my $path = $self->{path};
		2121
		2122	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2123	my $guard = cf::lock_acquire "map_data:$path";
1243		2124
		2125	return unless $self->valid;
1244	return if $self->in_memory != cf::MAP_SWAPPED;	2126	return unless $self->in_memory == cf::MAP_SWAPPED;
1245		2127
1246	$self->in_memory (cf::MAP_LOADING);	2128	$self->in_memory (cf::MAP_LOADING);
1247		2129
1248	$self->alloc;	2130	$self->alloc;
1249	$self->load_objects ($self->{load_path}, 1)	2131
		2132	$self->pre_load;
		2133	cf::cede_to_tick;
		2134
		2135	my $f = new_from_file cf::object::thawer $self->{load_path};
		2136	$f->skip_block;
		2137	$self->_load_objects ($f)
1250	or return;	2138	or return;
1251		2139
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2140	$self->post_load_original
1253	if delete $self->{load_original};	2141	if delete $self->{load_original};
1254		2142
1255	if (my $uniq = $path->uniq_path) {	2143	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	2144	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	2145	unless (aio_stat $uniq) {
		2146	if (my $f = new_from_file cf::object::thawer $uniq) {
1258	$self->clear_unique_items;	2147	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	2148	$self->_load_objects ($f);
		2149	$f->resolve_delayed_derefs;
		2150	}
1260	}	2151	}
1261	}	2152	}
1262		2153
1263	Coro::cede;	2154	$f->resolve_delayed_derefs;
1264		2155
		2156	cf::cede_to_tick;
1265	# now do the right thing for maps	2157	# now do the right thing for maps
1266	$self->link_multipart_objects;	2158	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	2159	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	2160	unless $self->difficulty;
		2161	cf::cede_to_tick;
		2162
		2163	unless ($self->{deny_activate}) {
		2164	$self->decay_objects;
		2165	$self->fix_auto_apply;
		2166	$self->update_buttons;
		2167	cf::cede_to_tick;
1278	$self->activate;	2168	$self->activate;
1279	}	2169	}
1280		2170
1281	Coro::cede;	2171	$self->{last_save} = $cf::RUNTIME;
		2172	$self->last_access ($cf::RUNTIME);
1282		2173
1283	$self->in_memory (cf::MAP_IN_MEMORY);	2174	$self->in_memory (cf::MAP_ACTIVE);
		2175	}
		2176
		2177	$self->post_load;
		2178
		2179	1
		2180	}
		2181
		2182	# customize the map for a given player, i.e.
		2183	# return the _real_ map. used by e.g. per-player
		2184	# maps to change the path to ~playername/mappath
		2185	sub customise_for {
		2186	my ($self, $ob) = @_;
		2187
		2188	return find "~" . $ob->name . "/" . $self->{path}
		2189	if $self->per_player;
		2190
		2191	# return find "?party/" . $ob->name . "/" . $self->{path}
		2192	# if $self->per_party;
		2193
		2194	$self
		2195	}
		2196
		2197	# find and load all maps in the 3x3 area around a map
		2198	sub load_neighbours {
		2199	my ($map) = @_;
		2200
		2201	my @neigh; # diagonal neighbours
		2202
		2203	for (0 .. 3) {
		2204	my $neigh = $map->tile_path ($_)
		2205	or next;
		2206	$neigh = find $neigh, $map
		2207	or next;
		2208	$neigh->load;
		2209
		2210	# now find the diagonal neighbours
		2211	push @neigh,
		2212	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2213	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2214	}
		2215
		2216	for (grep defined $_->[0], @neigh) {
		2217	my ($path, $origin) = @$_;
		2218	my $neigh = find $path, $origin
		2219	or next;
		2220	$neigh->load;
		2221	}
1284	}	2222	}
1285		2223
1286	sub find_sync {	2224	sub find_sync {
1287	my ($path, $origin) = @_;	2225	my ($path, $origin) = @_;
1288		2226
1289	cf::sync_job { cf::map::find $path, $origin }	2227	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2228	if $Coro::current == $Coro::main;
		2229
		2230	find $path, $origin
1290	}	2231	}
1291		2232
1292	sub do_load_sync {	2233	sub do_load_sync {
1293	my ($map) = @_;	2234	my ($map) = @_;
1294		2235
1295	cf::sync_job { $map->load };	2236	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2237	if $Coro::current == $Coro::main;
		2238
		2239	$map->load;
		2240	}
		2241
		2242	our %MAP_PREFETCH;
		2243	our $MAP_PREFETCHER = undef;
		2244
		2245	sub find_async {
		2246	my ($path, $origin, $load) = @_;
		2247
		2248	$path = normalise $path, $origin && $origin->{path};
		2249
		2250	if (my $map = $cf::MAP{$path}) {
		2251	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2252	}
		2253
		2254	$MAP_PREFETCH{$path} |= $load;
		2255
		2256	$MAP_PREFETCHER ||= cf::async {
		2257	$Coro::current->{desc} = "map prefetcher";
		2258
		2259	while (%MAP_PREFETCH) {
		2260	while (my ($k, $v) = each %MAP_PREFETCH) {
		2261	if (my $map = find $k) {
		2262	$map->load if $v;
		2263	}
		2264
		2265	delete $MAP_PREFETCH{$k};
		2266	}
		2267	}
		2268	undef $MAP_PREFETCHER;
		2269	};
		2270	$MAP_PREFETCHER->prio (6);
		2271
		2272	()
		2273	}
		2274
		2275	# common code, used by both ->save and ->swapout
		2276	sub _save {
		2277	my ($self) = @_;
		2278
		2279	$self->{last_save} = $cf::RUNTIME;
		2280
		2281	return unless $self->dirty;
		2282
		2283	my $save = $self->save_path; utf8::encode $save;
		2284	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2285
		2286	$self->{load_path} = $save;
		2287
		2288	return if $self->{deny_save};
		2289
		2290	local $self->{last_access} = $self->last_access;#d#
		2291
		2292	cf::async {
		2293	$Coro::current->{desc} = "map player save";
		2294	$_->contr->save for $self->players;
		2295	};
		2296
		2297	cf::get_slot 0.02;
		2298
		2299	if ($uniq) {
		2300	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2301	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2302	} else {
		2303	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2304	}
1296	}	2305	}
1297		2306
1298	sub save {	2307	sub save {
1299	my ($self) = @_;	2308	my ($self) = @_;
1300		2309
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	2310	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2311
1303	$self->{last_save} = $cf::RUNTIME;	2312	$self->_save;
1304
1305	return unless $self->dirty;
1306
1307	my $save = $self->{path}->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1309
1310	$self->{load_path} = $save;
1311
1312	return if $self->{deny_save};
1313
1314	local $self->{last_access} = $self->last_access;#d#
1315
1316	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}
1322	}	2313	}
1323		2314
1324	sub swap_out {	2315	sub swap_out {
1325	my ($self) = @_;	2316	my ($self) = @_;
1326		2317
1327	# save first because save cedes
1328	$self->save;
1329
1330	my $lock = cf::lock_acquire "map_data:" . $self->path;	2318	my $lock = cf::lock_acquire "map_data:$self->{path}";
1331		2319
		2320	return if $self->in_memory != cf::MAP_ACTIVE;
		2321	return if $self->{deny_save};
1332	return if $self->players;	2322	return if $self->players;
1333	return if $self->in_memory != cf::MAP_IN_MEMORY;
1334	return if $self->{deny_save};
1335		2323
		2324	# first deactivate the map and "unlink" it from the core
		2325	$self->deactivate;
		2326	$_->clear_links_to ($self) for values %cf::MAP;
		2327	$self->in_memory (cf::MAP_SWAPPED);
		2328
		2329	# then atomically save
		2330	$self->_save;
		2331
		2332	# then free the map
1336	$self->clear;	2333	$self->clear;
1337	$self->in_memory (cf::MAP_SWAPPED);
1338	}	2334	}
1339		2335
1340	sub reset_at {	2336	sub reset_at {
1341	my ($self) = @_;	2337	my ($self) = @_;
1342		2338
1343	# TODO: safety, remove and allow resettable per-player maps	2339	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};
1345	return 1e99 if $self->{deny_reset};	2340	return 1e99 if $self->{deny_reset};
1346		2341
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2342	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2343	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		2344
…		…
1354	my ($self) = @_;	2349	my ($self) = @_;
1355		2350
1356	$self->reset_at <= $cf::RUNTIME	2351	$self->reset_at <= $cf::RUNTIME
1357	}	2352	}
1358		2353
1359	sub unlink_save {
1360	my ($self) = @_;
1361
1362	utf8::encode (my $save = $self->{path}->save_path);
1363	aioreq_pri 3; IO::AIO::aio_unlink $save;
1364	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1365	}
1366
1367	sub rename {
1368	my ($self, $new_path) = @_;
1369
1370	$self->unlink_save;
1371
1372	delete $cf::MAP{$self->path};
1373	$self->{path} = new cf::path $new_path;
1374	$self->path ($self->{path}->as_string);
1375	$cf::MAP{$self->path} = $self;
1376
1377	$self->save;
1378	}
1379
1380	sub reset {	2354	sub reset {
1381	my ($self) = @_;	2355	my ($self) = @_;
1382		2356
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	2357	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		2358
1385	return if $self->players;	2359	return if $self->players;
1386	return if $self->{path}{user_rel};#d#
1387		2360
1388	warn "resetting map ", $self->path;#d#	2361	cf::trace "resetting map ", $self->path, "\n";
		2362
		2363	$self->in_memory (cf::MAP_SWAPPED);
		2364
		2365	# need to save uniques path
		2366	unless ($self->{deny_save}) {
		2367	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2368
		2369	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2370	if $uniq;
		2371	}
1389		2372
1390	delete $cf::MAP{$self->path};	2373	delete $cf::MAP{$self->path};
1391		2374
		2375	$self->deactivate;
1392	$_->clear_links_to ($self) for values %cf::MAP;	2376	$_->clear_links_to ($self) for values %cf::MAP;
		2377	$self->clear;
1393		2378
1394	$self->unlink_save;	2379	$self->unlink_save;
1395	$self->destroy;	2380	$self->destroy;
1396	}	2381	}
1397		2382
1398	my $nuke_counter = "aaaa";	2383	my $nuke_counter = "aaaa";
1399		2384
1400	sub nuke {	2385	sub nuke {
1401	my ($self) = @_;	2386	my ($self) = @_;
1402		2387
		2388	{
		2389	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2390
		2391	delete $cf::MAP{$self->path};
		2392
		2393	$self->unlink_save;
		2394
		2395	bless $self, "cf::map::wrap";
		2396	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	2397	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	2398	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	2399	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2400
		2401	$cf::MAP{$self->path} = $self;
		2402	}
		2403
1406	$self->reset; # polite request, might not happen	2404	$self->reset; # polite request, might not happen
1407	}	2405	}
1408		2406
1409	sub customise_for {	2407	=item $maps = cf::map::tmp_maps
1410	my ($map, $ob) = @_;
1411		2408
1412	if ($map->per_player) {	2409	Returns an arrayref with all map paths of currently instantiated and saved
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2410	maps. May block.
		2411
		2412	=cut
		2413
		2414	sub tmp_maps() {
1414	}	2415	[
1415		2416	map {
1416	$map	2417	utf8::decode $_;
		2418	/\.map$/
		2419	? normalise $_
		2420	: ()
		2421	} @{ aio_readdir $TMPDIR or [] }
		2422	]
1417	}	2423	}
1418		2424
1419	sub emergency_save {	2425	=item $maps = cf::map::random_maps
1420	my $freeze_guard = cf::freeze_mainloop;
1421		2426
1422	warn "enter emergency map save\n";	2427	Returns an arrayref with all map paths of currently instantiated and saved
		2428	random maps. May block.
1423		2429
1424	cf::sync_job {	2430	=cut
1425	warn "begin emergency map save\n";	2431
1426	$_->save for values %cf::MAP;	2432	sub random_maps() {
		2433	[
		2434	map {
		2435	utf8::decode $_;
		2436	/\.map$/
		2437	? normalise "?random/$_"
		2438	: ()
		2439	} @{ aio_readdir $RANDOMDIR or [] }
		2440	]
		2441	}
		2442
		2443	=item cf::map::unique_maps
		2444
		2445	Returns an arrayref of paths of all shared maps that have
		2446	instantiated unique items. May block.
		2447
		2448	=cut
		2449
		2450	sub unique_maps() {
		2451	[
		2452	map {
		2453	utf8::decode $_;
		2454	s/\.map$//; # TODO future compatibility hack
		2455	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2456	? ()
		2457	: normalise $_
		2458	} @{ aio_readdir $UNIQUEDIR or [] }
		2459	]
		2460	}
		2461
		2462	=item cf::map::static_maps
		2463
		2464	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2465	file in the shared directory excluding F</styles> and F</editor>). May
		2466	block.
		2467
		2468	=cut
		2469
		2470	sub static_maps() {
		2471	my @dirs = "";
		2472	my @maps;
		2473
		2474	while (@dirs) {
		2475	my $dir = shift @dirs;
		2476
		2477	next if $dir eq "/styles" || $dir eq "/editor";
		2478
		2479	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2480	or return;
		2481
		2482	for (@$files) {
		2483	s/\.map$// or next;
		2484	utf8::decode $_;
		2485	push @maps, "$dir/$_";
		2486	}
		2487
		2488	push @dirs, map "$dir/$_", @$dirs;
1427	};	2489	}
1428		2490
1429	warn "end emergency map save\n";	2491	\@maps
		2492	}
		2493
		2494	=back
		2495
		2496	=head3 cf::object
		2497
		2498	=cut
		2499
		2500	package cf::object;
		2501
		2502	=over 4
		2503
		2504	=item $ob->inv_recursive
		2505
		2506	Returns the inventory of the object I<and> their inventories, recursively,
		2507	but I<not> the object itself.
		2508
		2509	=cut
		2510
		2511	sub inv_recursive_;
		2512	sub inv_recursive_ {
		2513	map { $_, inv_recursive_ $_->inv } @_
		2514	}
		2515
		2516	sub inv_recursive {
		2517	inv_recursive_ inv $_[0]
		2518	}
		2519
		2520	=item $ref = $ob->ref
		2521
		2522	Creates and returns a persistent reference to an object that can be stored as a string.
		2523
		2524	=item $ob = cf::object::deref ($refstring)
		2525
		2526	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2527	even if the object actually exists. May block.
		2528
		2529	=cut
		2530
		2531	sub deref {
		2532	my ($ref) = @_;
		2533
		2534	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2535	my ($uuid, $name) = ($1, $2);
		2536	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2537	or return;
		2538	$pl->ob->uuid eq $uuid
		2539	or return;
		2540
		2541	$pl->ob
		2542	} else {
		2543	warn "$ref: cannot resolve object reference\n";
		2544	undef
		2545	}
1430	}	2546	}
1431		2547
1432	package cf;	2548	package cf;
1433		2549
1434	=back	2550	=back
1435
1436		2551
1437	=head3 cf::object::player	2552	=head3 cf::object::player
1438		2553
1439	=over 4	2554	=over 4
1440		2555
…		…
1443	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2558	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1444	can be C<undef>. Does the right thing when the player is currently in a	2559	can be C<undef>. Does the right thing when the player is currently in a
1445	dialogue with the given NPC character.	2560	dialogue with the given NPC character.
1446		2561
1447	=cut	2562	=cut
		2563
		2564	our $SAY_CHANNEL = {
		2565	id => "say",
		2566	title => "Map",
		2567	reply => "say ",
		2568	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2569	};
		2570
		2571	our $CHAT_CHANNEL = {
		2572	id => "chat",
		2573	title => "Chat",
		2574	reply => "chat ",
		2575	tooltip => "Player chat and shouts, global to the server.",
		2576	};
1448		2577
1449	# rough implementation of a future "reply" method that works	2578	# rough implementation of a future "reply" method that works
1450	# with dialog boxes.	2579	# with dialog boxes.
1451	#TODO: the first argument must go, split into a $npc->reply_to ( method	2580	#TODO: the first argument must go, split into a $npc->reply_to ( method
1452	sub cf::object::player::reply($$$;$) {	2581	sub cf::object::player::reply($$$;$) {
…		…
1454		2583
1455	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2584	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1456		2585
1457	if ($self->{record_replies}) {	2586	if ($self->{record_replies}) {
1458	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2587	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2588
1459	} else {	2589	} else {
		2590	my $pl = $self->contr;
		2591
		2592	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2593	my $dialog = $pl->{npc_dialog};
		2594	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2595
		2596	} else {
1460	$msg = $npc->name . " says: $msg" if $npc;	2597	$msg = $npc->name . " says: $msg" if $npc;
1461	$self->message ($msg, $flags);	2598	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2599	}
1462	}	2600	}
		2601	}
		2602
		2603	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2604
		2605	=cut
		2606
		2607	sub cf::object::send_msg {
		2608	my $pl = shift->contr
		2609	or return;
		2610	$pl->send_msg (@_);
1463	}	2611	}
1464		2612
1465	=item $player_object->may ("access")	2613	=item $player_object->may ("access")
1466		2614
1467	Returns wether the given player is authorized to access resource "access"	2615	Returns wether the given player is authorized to access resource "access"
…		…
1480		2628
1481	=item $player_object->enter_link	2629	=item $player_object->enter_link
1482		2630
1483	Freezes the player and moves him/her to a special map (C<{link}>).	2631	Freezes the player and moves him/her to a special map (C<{link}>).
1484		2632
1485	The player should be reaosnably safe there for short amounts of time. You	2633	The player should be reasonably safe there for short amounts of time (e.g.
1486	I<MUST> call C<leave_link> as soon as possible, though.	2634	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2635	though, as the player cannot control the character while it is on the link
		2636	map.
		2637
		2638	Will never block.
1487		2639
1488	=item $player_object->leave_link ($map, $x, $y)	2640	=item $player_object->leave_link ($map, $x, $y)
1489		2641
1490	Moves the player out of the specila link map onto the given map. If the	2642	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	2643	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	2644	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	2645	fails, to the emergency map position.
1494		2646
1495	Might block.	2647	Might block.
1496		2648
1497	=cut	2649	=cut
		2650
		2651	sub link_map {
		2652	unless ($LINK_MAP) {
		2653	$LINK_MAP = cf::map::find "{link}"
		2654	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2655	$LINK_MAP->load;
		2656	}
		2657
		2658	$LINK_MAP
		2659	}
1498		2660
1499	sub cf::object::player::enter_link {	2661	sub cf::object::player::enter_link {
1500	my ($self) = @_;	2662	my ($self) = @_;
1501		2663
1502	$self->deactivate_recursive;	2664	$self->deactivate_recursive;
1503		2665
1504	return if $self->map == $LINK_MAP;	2666	++$self->{_link_recursion};
		2667
		2668	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		2669
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2670	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	2671	if $self->map && $self->map->{path} ne "{link}";
1508		2672
1509	$self->enter_map ($LINK_MAP, 20, 20);	2673	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1510	}	2674	}
1511		2675
1512	sub cf::object::player::leave_link {	2676	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	2677	my ($self, $map, $x, $y) = @_;
		2678
		2679	return unless $self->contr->active;
1514		2680
1515	my $link_pos = delete $self->{_link_pos};	2681	my $link_pos = delete $self->{_link_pos};
1516		2682
1517	unless ($map) {	2683	unless ($map) {
1518	# restore original map position	2684	# restore original map position
…		…
1529	($x, $y) = (-1, -1)	2695	($x, $y) = (-1, -1)
1530	unless (defined $x) && (defined $y);	2696	unless (defined $x) && (defined $y);
1531		2697
1532	# use -1 or undef as default coordinates, not 0, 0	2698	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	2699	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	2700	if $x <= 0 && $y <= 0;
1535		2701
1536	$map->load;	2702	$map->load;
		2703	$map->load_neighbours;
1537		2704
		2705	return unless $self->contr->active;
		2706
		2707	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2708	if ($self->enter_map ($map, $x, $y)) {
		2709	# entering was successful
		2710	delete $self->{_link_recursion};
		2711	# only activate afterwards, to support waiting in hooks
1538	$self->activate_recursive;	2712	$self->activate_recursive;
1539	$self->enter_map ($map, $x, $y);
1540	}
1541
1542	cf::player->attach (
1543	on_logout => sub {
1544	my ($pl) = @_;
1545
1546	# abort map switching before logout
1547	if ($pl->ob->{_link_pos}) {
1548	cf::sync_job {
1549	$pl->ob->leave_link
1550	};
1551	}
1552	},	2713	}
1553	on_login => sub {
1554	my ($pl) = @_;
1555		2714
1556	# try to abort aborted map switching on player login :)	2715	}
1557	# should happen only on crashes
1558	if ($pl->ob->{_link_pos}) {
1559	$pl->ob->enter_link;
1560	cf::async {
1561	# we need this sleep as the login has a concurrent enter_exit running
1562	# and this sleep increases chances of the player not ending up in scorn
1563	Coro::Timer::sleep 1;
1564	$pl->ob->leave_link;
1565	};
1566	}
1567	},
1568	);
1569		2716
1570	=item $player_object->goto ($path, $x, $y)	2717	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1571		2718
		2719	Moves the player to the given map-path and coordinates by first freezing
		2720	her, loading and preparing them map, calling the provided $check callback
		2721	that has to return the map if sucecssful, and then unfreezes the player on
		2722	the new (success) or old (failed) map position. In either case, $done will
		2723	be called at the end of this process.
		2724
		2725	Note that $check will be called with a potentially non-loaded map, so if
		2726	it needs a loaded map it has to call C<< ->load >>.
		2727
1572	=cut	2728	=cut
		2729
		2730	our $GOTOGEN;
1573		2731
1574	sub cf::object::player::goto {	2732	sub cf::object::player::goto {
1575	my ($self, $path, $x, $y) = @_;	2733	my ($self, $path, $x, $y, $check, $done) = @_;
		2734
		2735	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2736	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2737	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2738	($path, $x, $y) = @$EMERGENCY_POSITION;
		2739	}
		2740
		2741	# do generation counting so two concurrent goto's will be executed in-order
		2742	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1576		2743
1577	$self->enter_link;	2744	$self->enter_link;
1578		2745
1579	(cf::async {	2746	(async {
1580	$path = new cf::path $path;	2747	$Coro::current->{desc} = "player::goto $path $x $y";
1581		2748
1582	my $map = cf::map::find $path->as_string;	2749	# *tag paths override both path and x|y
		2750	if ($path =~ /^\*(.*)$/) {
		2751	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2752	my $ob = $obs[rand @obs];
		2753
		2754	# see if we actually can go there
		2755	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2756	$ob = $obs[rand @obs];
		2757	} else {
		2758	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2759	}
		2760	# else put us there anyways for now #d#
		2761
		2762	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2763	} else {
		2764	($path, $x, $y) = (undef, undef, undef);
		2765	}
		2766	}
		2767
		2768	my $map = eval {
		2769	my $map = defined $path ? cf::map::find $path : undef;
		2770
		2771	if ($map) {
1583	$map = $map->customise_for ($self) if $map;	2772	$map = $map->customise_for ($self);
1584		2773	$map = $check->($map, $x, $y, $self) if $check && $map;
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	2774	} else {
1586	# if $map;
1587
1588	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2775	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2776	}
1589		2777
		2778	$map
		2779	};
		2780
		2781	if ($@) {
		2782	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2783	LOG llevError | logBacktrace, Carp::longmess $@;
		2784	}
		2785
		2786	if ($gen == $self->{_goto_generation}) {
		2787	delete $self->{_goto_generation};
1590	$self->leave_link ($map, $x, $y);	2788	$self->leave_link ($map, $x, $y);
		2789	}
		2790
		2791	$done->($self) if $done;
1591	})->prio (1);	2792	})->prio (1);
1592	}	2793	}
1593		2794
1594	=item $player_object->enter_exit ($exit_object)	2795	=item $player_object->enter_exit ($exit_object)
1595		2796
…		…
1597		2798
1598	sub parse_random_map_params {	2799	sub parse_random_map_params {
1599	my ($spec) = @_;	2800	my ($spec) = @_;
1600		2801
1601	my $rmp = { # defaults	2802	my $rmp = { # defaults
1602	xsize => 10,	2803	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	2804	ysize => (cf::rndm 15, 40),
		2805	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2806	#layout => string,
1604	};	2807	};
1605		2808
1606	for (split /\n/, $spec) {	2809	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	2810	my ($k, $v) = split /\s+/, $_, 2;
1608		2811
…		…
1620	# that depends on the exit object	2823	# that depends on the exit object
1621		2824
1622	my $rmp = parse_random_map_params $exit->msg;	2825	my $rmp = parse_random_map_params $exit->msg;
1623		2826
1624	if ($exit->map) {	2827	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	2828	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	2829	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	2830	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	2831	$rmp->{origin_y} = $exit->y;
		2832
		2833	$exit->map->touch;
1629	}	2834	}
1630		2835
1631	$rmp->{random_seed} ||= $exit->random_seed;	2836	$rmp->{random_seed} ||= $exit->random_seed;
1632		2837
1633	my $data = cf::to_json $rmp;	2838	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1634	my $md5 = Digest::MD5::md5_hex $data;	2839	my $md5 = Digest::MD5::md5_hex $data;
		2840	my $meta = "$RANDOMDIR/$md5.meta";
1635		2841
1636	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2842	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1637	aio_write $fh, 0, (length $data), $data, 0;	2843	aio_write $fh, 0, (length $data), $data, 0;
		2844	undef $fh;
		2845	aio_rename "$meta~", $meta;
1638		2846
		2847	my $slaying = "?random/$md5";
		2848
		2849	if ($exit->valid) {
1639	$exit->slaying ("?random/$md5");	2850	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	2851	$exit->msg (undef);
		2852	}
1641	}	2853	}
1642	}	2854	}
1643		2855
1644	sub cf::object::player::enter_exit {	2856	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	2857	my ($self, $exit) = @_;
1646		2858
1647	return unless $self->type == cf::PLAYER;	2859	return unless $self->type == cf::PLAYER;
1648		2860
1649	$self->enter_link;	2861	$self->enter_link;
1650		2862
1651	(cf::async {	2863	(async {
1652	$self->deactivate_recursive; # just to be sure	2864	$Coro::current->{desc} = "enter_exit";
		2865
1653	unless (eval {	2866	unless (eval {
		2867	$self->deactivate_recursive; # just to be sure
		2868
		2869	# random map handling
		2870	{
		2871	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2872
1654	prepare_random_map $exit	2873	prepare_random_map $exit
1655	if $exit->slaying eq "/!";	2874	if $exit->slaying eq "/!";
		2875	}
1656		2876
1657	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2877	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2878	my $x = $exit->stats->hp;
		2879	my $y = $exit->stats->sp;
1659		2880
		2881	$self->goto ($map, $x, $y);
		2882
		2883	# if exit is damned, update players death & WoR home-position
		2884	$self->contr->savebed ($map, $x, $y)
		2885	if $exit->flag (cf::FLAG_DAMNED);
		2886
1660	1;	2887	1
1661	}) {	2888	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	2889	$self->message ("Something went wrong deep within the deliantra server. "
1663	. "I'll try to bring you back to the map you were before. "	2890	. "I'll try to bring you back to the map you were before. "
1664	. "Please report this to the dungeon master",	2891	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	2892	cf::NDI_UNIQUE | cf::NDI_RED);
1666		2893
1667	warn "ERROR in enter_exit: $@";	2894	error "ERROR in enter_exit: $@";
1668	$self->leave_link;	2895	$self->leave_link;
1669	}	2896	}
1670	})->prio (1);	2897	})->prio (1);
1671	}	2898	}
1672		2899
…		…
1683		2910
1684	sub cf::client::send_drawinfo {	2911	sub cf::client::send_drawinfo {
1685	my ($self, $text, $flags) = @_;	2912	my ($self, $text, $flags) = @_;
1686		2913
1687	utf8::encode $text;	2914	utf8::encode $text;
1688	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2915	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1689	}	2916	}
1690		2917
		2918	=item $client->send_big_packet ($pkt)
		2919
		2920	Like C<send_packet>, but tries to compress large packets, and fragments
		2921	them as required.
		2922
		2923	=cut
		2924
		2925	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2926
		2927	sub cf::client::send_big_packet {
		2928	my ($self, $pkt) = @_;
		2929
		2930	# try lzf for large packets
		2931	$pkt = "lzf " . Compress::LZF::compress $pkt
		2932	if 1024 <= length $pkt and $self->{can_lzf};
		2933
		2934	# split very large packets
		2935	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2936	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2937	$pkt = "frag";
		2938	}
		2939
		2940	$self->send_packet ($pkt);
		2941	}
		2942
		2943	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2944
		2945	Send a drawinfo or msg packet to the client, formatting the msg for the
		2946	client if neccessary. C<$type> should be a string identifying the type of
		2947	the message, with C<log> being the default. If C<$color> is negative, suppress
		2948	the message unless the client supports the msg packet.
		2949
		2950	=cut
		2951
		2952	# non-persistent channels (usually the info channel)
		2953	our %CHANNEL = (
		2954	"c/motd" => {
		2955	id => "infobox",
		2956	title => "MOTD",
		2957	reply => undef,
		2958	tooltip => "The message of the day",
		2959	},
		2960	"c/identify" => {
		2961	id => "infobox",
		2962	title => "Identify",
		2963	reply => undef,
		2964	tooltip => "Items recently identified",
		2965	},
		2966	"c/examine" => {
		2967	id => "infobox",
		2968	title => "Examine",
		2969	reply => undef,
		2970	tooltip => "Signs and other items you examined",
		2971	},
		2972	"c/shopinfo" => {
		2973	id => "infobox",
		2974	title => "Shop Info",
		2975	reply => undef,
		2976	tooltip => "What your bargaining skill tells you about the shop",
		2977	},
		2978	"c/book" => {
		2979	id => "infobox",
		2980	title => "Book",
		2981	reply => undef,
		2982	tooltip => "The contents of a note or book",
		2983	},
		2984	"c/lookat" => {
		2985	id => "infobox",
		2986	title => "Look",
		2987	reply => undef,
		2988	tooltip => "What you saw there",
		2989	},
		2990	"c/who" => {
		2991	id => "infobox",
		2992	title => "Players",
		2993	reply => undef,
		2994	tooltip => "Shows players who are currently online",
		2995	},
		2996	"c/body" => {
		2997	id => "infobox",
		2998	title => "Body Parts",
		2999	reply => undef,
		3000	tooltip => "Shows which body parts you posess and are available",
		3001	},
		3002	"c/statistics" => {
		3003	id => "infobox",
		3004	title => "Statistics",
		3005	reply => undef,
		3006	tooltip => "Shows your primary statistics",
		3007	},
		3008	"c/skills" => {
		3009	id => "infobox",
		3010	title => "Skills",
		3011	reply => undef,
		3012	tooltip => "Shows your experience per skill and item power",
		3013	},
		3014	"c/shopitems" => {
		3015	id => "infobox",
		3016	title => "Shop Items",
		3017	reply => undef,
		3018	tooltip => "Shows the items currently for sale in this shop",
		3019	},
		3020	"c/resistances" => {
		3021	id => "infobox",
		3022	title => "Resistances",
		3023	reply => undef,
		3024	tooltip => "Shows your resistances",
		3025	},
		3026	"c/pets" => {
		3027	id => "infobox",
		3028	title => "Pets",
		3029	reply => undef,
		3030	tooltip => "Shows information abotu your pets/a specific pet",
		3031	},
		3032	"c/perceiveself" => {
		3033	id => "infobox",
		3034	title => "Perceive Self",
		3035	reply => undef,
		3036	tooltip => "You gained detailed knowledge about yourself",
		3037	},
		3038	"c/uptime" => {
		3039	id => "infobox",
		3040	title => "Uptime",
		3041	reply => undef,
		3042	tooltip => "How long the server has been running since last restart",
		3043	},
		3044	"c/mapinfo" => {
		3045	id => "infobox",
		3046	title => "Map Info",
		3047	reply => undef,
		3048	tooltip => "Information related to the maps",
		3049	},
		3050	"c/party" => {
		3051	id => "party",
		3052	title => "Party",
		3053	reply => "gsay ",
		3054	tooltip => "Messages and chat related to your party",
		3055	},
		3056	"c/death" => {
		3057	id => "death",
		3058	title => "Death",
		3059	reply => undef,
		3060	tooltip => "Reason for and more info about your most recent death",
		3061	},
		3062	"c/say" => $SAY_CHANNEL,
		3063	"c/chat" => $CHAT_CHANNEL,
		3064	);
		3065
		3066	sub cf::client::send_msg {
		3067	my ($self, $channel, $msg, $color, @extra) = @_;
		3068
		3069	$msg = $self->pl->expand_cfpod ($msg)
		3070	unless $color & cf::NDI_VERBATIM;
		3071
		3072	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3073
		3074	# check predefined channels, for the benefit of C
		3075	if ($CHANNEL{$channel}) {
		3076	$channel = $CHANNEL{$channel};
		3077
		3078	$self->ext_msg (channel_info => $channel);
		3079	$channel = $channel->{id};
		3080
		3081	} elsif (ref $channel) {
		3082	# send meta info to client, if not yet sent
		3083	unless (exists $self->{channel}{$channel->{id}}) {
		3084	$self->{channel}{$channel->{id}} = $channel;
		3085	$self->ext_msg (channel_info => $channel);
		3086	}
		3087
		3088	$channel = $channel->{id};
		3089	}
		3090
		3091	return unless @extra || length $msg;
		3092
		3093	# default colour, mask it out
		3094	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3095	if $color & cf::NDI_DEF;
		3096
		3097	my $pkt = "msg "
		3098	. $self->{json_coder}->encode (
		3099	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3100	);
		3101
		3102	$self->send_big_packet ($pkt);
		3103	}
		3104
		3105	=item $client->ext_msg ($type, @msg)
		3106
		3107	Sends an ext event to the client.
		3108
		3109	=cut
		3110
		3111	sub cf::client::ext_msg($$@) {
		3112	my ($self, $type, @msg) = @_;
		3113
		3114	if ($self->extcmd == 2) {
		3115	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3116	} elsif ($self->extcmd == 1) { # TODO: remove
		3117	push @msg, msgtype => "event_$type";
		3118	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3119	}
		3120	}
		3121
		3122	=item $client->ext_reply ($msgid, @msg)
		3123
		3124	Sends an ext reply to the client.
		3125
		3126	=cut
		3127
		3128	sub cf::client::ext_reply($$@) {
		3129	my ($self, $id, @msg) = @_;
		3130
		3131	if ($self->extcmd == 2) {
		3132	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3133	} elsif ($self->extcmd == 1) {
		3134	#TODO: version 1, remove
		3135	unshift @msg, msgtype => "reply", msgid => $id;
		3136	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3137	}
		3138	}
1691		3139
1692	=item $success = $client->query ($flags, "text", \&cb)	3140	=item $success = $client->query ($flags, "text", \&cb)
1693		3141
1694	Queues a query to the client, calling the given callback with	3142	Queues a query to the client, calling the given callback with
1695	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3143	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1696	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3144	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1697		3145
1698	Queries can fail, so check the return code. Or don't, as queries will become	3146	Queries can fail, so check the return code. Or don't, as queries will
1699	reliable at some point in the future.	3147	become reliable at some point in the future.
1700		3148
1701	=cut	3149	=cut
1702		3150
1703	sub cf::client::query {	3151	sub cf::client::query {
1704	my ($self, $flags, $text, $cb) = @_;	3152	my ($self, $flags, $text, $cb) = @_;
…		…
1712	utf8::encode $text;	3160	utf8::encode $text;
1713	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3161	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1714		3162
1715	$self->send_packet ($self->{query_queue}[0][0])	3163	$self->send_packet ($self->{query_queue}[0][0])
1716	if @{ $self->{query_queue} } == 1;	3164	if @{ $self->{query_queue} } == 1;
		3165
		3166	1
1717	}	3167	}
1718		3168
1719	cf::client->attach (	3169	cf::client->attach (
		3170	on_connect => sub {
		3171	my ($ns) = @_;
		3172
		3173	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3174	},
1720	on_reply => sub {	3175	on_reply => sub {
1721	my ($ns, $msg) = @_;	3176	my ($ns, $msg) = @_;
1722		3177
1723	# this weird shuffling is so that direct followup queries	3178	# this weird shuffling is so that direct followup queries
1724	# get handled first	3179	# get handled first
1725	my $queue = delete $ns->{query_queue}	3180	my $queue = delete $ns->{query_queue}
1726	or return; # be conservative, not sure how that can happen, but we saw a crash here	3181	or return; # be conservative, not sure how that can happen, but we saw a crash here
1727		3182
1728	(shift @$queue)->[1]->($msg);	3183	(shift @$queue)->[1]->($msg);
		3184	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		3185
1730	push @{ $ns->{query_queue} }, @$queue;	3186	push @{ $ns->{query_queue} }, @$queue;
1731		3187
1732	if (@{ $ns->{query_queue} } == @$queue) {	3188	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	3189	if (@$queue) {
…		…
1735	} else {	3191	} else {
1736	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3192	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1737	}	3193	}
1738	}	3194	}
1739	},	3195	},
		3196	on_exticmd => sub {
		3197	my ($ns, $buf) = @_;
		3198
		3199	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3200
		3201	if (ref $msg) {
		3202	my ($type, $reply, @payload) =
		3203	"ARRAY" eq ref $msg
		3204	? @$msg
		3205	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3206
		3207	my @reply;
		3208
		3209	if (my $cb = $EXTICMD{$type}) {
		3210	@reply = $cb->($ns, @payload);
		3211	}
		3212
		3213	$ns->ext_reply ($reply, @reply)
		3214	if $reply;
		3215
		3216	} else {
		3217	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3218	}
		3219
		3220	cf::override;
		3221	},
1740	);	3222	);
1741		3223
1742	=item $client->coro (\&cb)	3224	=item $client->async (\&cb)
1743		3225
1744	Create a new coroutine, running the specified callback. The coroutine will	3226	Create a new coroutine, running the specified callback. The coroutine will
1745	be automatically cancelled when the client gets destroyed (e.g. on logout,	3227	be automatically cancelled when the client gets destroyed (e.g. on logout,
1746	or loss of connection).	3228	or loss of connection).
1747		3229
1748	=cut	3230	=cut
1749		3231
1750	sub cf::client::coro {	3232	sub cf::client::async {
1751	my ($self, $cb) = @_;	3233	my ($self, $cb) = @_;
1752		3234
1753	my $coro = &cf::async ($cb);	3235	my $coro = &Coro::async ($cb);
1754		3236
1755	$coro->on_destroy (sub {	3237	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	3238	delete $self->{_coro}{$coro+0};
1757	});	3239	});
1758		3240
…		…
1760		3242
1761	$coro	3243	$coro
1762	}	3244	}
1763		3245
1764	cf::client->attach (	3246	cf::client->attach (
1765	on_destroy => sub {	3247	on_client_destroy => sub {
1766	my ($ns) = @_;	3248	my ($ns) = @_;
1767		3249
1768	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3250	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1769	},	3251	},
1770	);	3252	);
…		…
1785	our $safe = new Safe "safe";	3267	our $safe = new Safe "safe";
1786	our $safe_hole = new Safe::Hole;	3268	our $safe_hole = new Safe::Hole;
1787		3269
1788	$SIG{FPE} = 'IGNORE';	3270	$SIG{FPE} = 'IGNORE';
1789		3271
1790	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3272	$safe->permit_only (Opcode::opset qw(
		3273	:base_core :base_mem :base_orig :base_math :base_loop
		3274	grepstart grepwhile mapstart mapwhile
		3275	sort time
		3276	));
1791		3277
1792	# here we export the classes and methods available to script code	3278	# here we export the classes and methods available to script code
1793		3279
1794	=pod	3280	=pod
1795		3281
1796	The following fucntions and emthods are available within a safe environment:	3282	The following functions and methods are available within a safe environment:
1797		3283
1798	cf::object contr pay_amount pay_player map	3284	cf::object
		3285	contr pay_amount pay_player map x y force_find force_add destroy
		3286	insert remove name archname title slaying race decrease split
		3287	value
		3288
1799	cf::object::player player	3289	cf::object::player
1800	cf::player peaceful	3290	player
1801	cf::map trigger	3291
		3292	cf::player
		3293	peaceful
		3294
		3295	cf::map
		3296	trigger
1802		3297
1803	=cut	3298	=cut
1804		3299
1805	for (	3300	for (
1806	["cf::object" => qw(contr pay_amount pay_player map)],	3301	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3302	insert remove inv nrof name archname title slaying race
		3303	decrease split destroy change_exp value msg lore send_msg)],
1807	["cf::object::player" => qw(player)],	3304	["cf::object::player" => qw(player)],
1808	["cf::player" => qw(peaceful)],	3305	["cf::player" => qw(peaceful send_msg)],
1809	["cf::map" => qw(trigger)],	3306	["cf::map" => qw(trigger)],
1810	) {	3307	) {
1811	no strict 'refs';
1812	my ($pkg, @funs) = @$_;	3308	my ($pkg, @funs) = @$_;
1813	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3309	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1814	for @funs;	3310	for @funs;
1815	}	3311	}
1816		3312
…		…
1831		3327
1832	my $qcode = $code;	3328	my $qcode = $code;
1833	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3329	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1834	$qcode =~ s/\n/\\n/g;	3330	$qcode =~ s/\n/\\n/g;
1835		3331
		3332	%vars = (_dummy => 0) unless %vars;
		3333
		3334	my @res;
1836	local $_;	3335	local $_;
1837	local @safe::cf::_safe_eval_args = values %vars;
1838		3336
1839	my $eval =	3337	my $eval =
1840	"do {\n"	3338	"do {\n"
1841	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3339	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1842	. "#line 0 \"{$qcode}\"\n"	3340	. "#line 0 \"{$qcode}\"\n"
1843	. $code	3341	. $code
1844	. "\n}"	3342	. "\n}"
1845	;	3343	;
1846		3344
		3345	if ($CFG{safe_eval}) {
1847	sub_generation_inc;	3346	sub_generation_inc;
		3347	local @safe::cf::_safe_eval_args = values %vars;
1848	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3348	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1849	sub_generation_inc;	3349	sub_generation_inc;
		3350	} else {
		3351	local @cf::_safe_eval_args = values %vars;
		3352	@res = wantarray ? eval eval : scalar eval $eval;
		3353	}
1850		3354
1851	if ($@) {	3355	if ($@) {
1852	warn "$@";	3356	warn "$@",
1853	warn "while executing safe code '$code'\n";	3357	"while executing safe code '$code'\n",
1854	warn "with arguments " . (join " ", %vars) . "\n";	3358	"with arguments " . (join " ", %vars) . "\n";
1855	}	3359	}
1856		3360
1857	wantarray ? @res : $res[0]	3361	wantarray ? @res : $res[0]
1858	}	3362	}
1859		3363
…		…
1873	=cut	3377	=cut
1874		3378
1875	sub register_script_function {	3379	sub register_script_function {
1876	my ($fun, $cb) = @_;	3380	my ($fun, $cb) = @_;
1877		3381
1878	no strict 'refs';	3382	$fun = "safe::$fun" if $CFG{safe_eval};
1879	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3383	*$fun = $safe_hole->wrap ($cb);
1880	}	3384	}
1881		3385
1882	=back	3386	=back
1883		3387
1884	=cut	3388	=cut
1885		3389
1886	#############################################################################	3390	#############################################################################
		3391	# the server's init and main functions
1887		3392
1888	=head2 EXTENSION DATABASE SUPPORT	3393	sub load_facedata($) {
		3394	my ($path) = @_;
1889		3395
1890	Crossfire maintains a very simple database for extension use. It can	3396	# HACK to clear player env face cache, we need some signal framework
1891	currently store anything that can be serialised using Storable, which	3397	# for this (global event?)
1892	excludes objects.	3398	%ext::player_env::MUSIC_FACE_CACHE = ();
1893		3399
1894	The parameter C<$family> should best start with the name of the extension	3400	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1895	using it, it should be unique.
1896		3401
1897	=over 4	3402	trace "loading facedata from $path\n";
1898		3403
1899	=item $hashref = cf::db_get $family	3404	0 < aio_load $path, my $facedata
		3405	or die "$path: $!";
1900		3406
1901	Return a hashref for use by the extension C<$family>, which can be	3407	$facedata = Coro::Storable::thaw $facedata;
1902	modified. After modifications, you have to call C<cf::db_dirty> or
1903	C<cf::db_sync>.
1904		3408
1905	=item $value = cf::db_get $family => $key	3409	$facedata->{version} == 2
		3410	or cf::cleanup "$path: version mismatch, cannot proceed.";
1906		3411
1907	Returns a single value from the database	3412	# patch in the exptable
1908		3413	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1909	=item cf::db_put $family => $hashref	3414	$facedata->{resource}{"res/exp_table"} = {
1910		3415	type => FT_RSRC,
1911	Stores the given family hashref into the database. Updates are delayed, if	3416	data => $exp_table,
1912	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3417	hash => (Digest::MD5::md5 $exp_table),
1913
1914	=item cf::db_put $family => $key => $value
1915
1916	Stores the given C<$value> in the family hash. Updates are delayed, if you
1917	want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_dirty
1920
1921	Marks the database as dirty, to be updated at a later time.
1922
1923	=item cf::db_sync
1924
1925	Immediately write the database to disk I<if it is dirty>.
1926
1927	=cut
1928
1929	our $DB;
1930
1931	{
1932	my $path = cf::localdir . "/database.pst";
1933
1934	sub db_load() {
1935	$DB = stat $path ? Storable::retrieve $path : { };
1936	}
1937
1938	my $pid;
1939
1940	sub db_save() {
1941	waitpid $pid, 0 if $pid;
1942	if (0 == ($pid = fork)) {
1943	$DB->{_meta}{version} = 1;
1944	Storable::nstore $DB, "$path~";
1945	rename "$path~", $path;
1946	cf::_exit 0 if defined $pid;
1947	}
1948	}
1949
1950	my $dirty;
1951
1952	sub db_sync() {
1953	db_save if $dirty;
1954	undef $dirty;
1955	}
1956
1957	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1958	db_sync;
1959	});	3418	};
		3419	cf::cede_to_tick;
1960		3420
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}	3421	{
		3422	my $faces = $facedata->{faceinfo};
1965		3423
1966	sub db_get($;$) {	3424	while (my ($face, $info) = each %$faces) {
1967	@_ >= 2	3425	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1968	? $DB->{$_[0]}{$_[1]}
1969	: ($DB->{$_[0]} ||= { })
1970	}
1971		3426
1972	sub db_put($$;$) {	3427	cf::face::set_visibility $idx, $info->{visibility};
1973	if (@_ >= 3) {	3428	cf::face::set_magicmap $idx, $info->{magicmap};
1974	$DB->{$_[0]}{$_[1]} = $_[2];	3429	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1975	} else {	3430	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1976	$DB->{$_[0]} = $_[1];	3431	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1977	}
1978	db_dirty;
1979	}
1980		3432
1981	cf::global->attach (	3433	cf::cede_to_tick;
1982	prio => 10000,
1983	on_cleanup => sub {
1984	db_sync;
1985	},	3434	}
1986	);
1987	}
1988		3435
1989	#############################################################################	3436	while (my ($face, $info) = each %$faces) {
1990	# the server's main()	3437	next unless $info->{smooth};
1991		3438
1992	sub cfg_load {	3439	my $idx = cf::face::find $face
1993	open my $fh, "<:utf8", cf::confdir . "/config"	3440	or next;
1994	or return;
1995		3441
1996	local $/;	3442	if (my $smooth = cf::face::find $info->{smooth}) {
1997	*CFG = YAML::Syck::Load <$fh>;	3443	cf::face::set_smooth $idx, $smooth;
		3444	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3445	} else {
		3446	error "smooth face '$info->{smooth}' not found for face '$face'";
		3447	}
1998		3448
		3449	cf::cede_to_tick;
		3450	}
		3451	}
		3452
		3453	{
		3454	my $anims = $facedata->{animinfo};
		3455
		3456	while (my ($anim, $info) = each %$anims) {
		3457	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3458	cf::cede_to_tick;
		3459	}
		3460
		3461	cf::anim::invalidate_all; # d'oh
		3462	}
		3463
		3464	{
		3465	my $res = $facedata->{resource};
		3466
		3467	while (my ($name, $info) = each %$res) {
		3468	if (defined $info->{type}) {
		3469	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3470
		3471	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3472	cf::face::set_type $idx, $info->{type};
		3473	} else {
		3474	$RESOURCE{$name} = $info; # unused
		3475	}
		3476
		3477	cf::cede_to_tick;
		3478	}
		3479	}
		3480
		3481	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3482
		3483	1
		3484	}
		3485
		3486	register_exticmd fx_want => sub {
		3487	my ($ns, $want) = @_;
		3488
		3489	while (my ($k, $v) = each %$want) {
		3490	$ns->fx_want ($k, $v);
		3491	}
		3492	};
		3493
		3494	sub load_resource_file($) {
		3495	my $guard = lock_acquire "load_resource_file";
		3496
		3497	my $status = load_resource_file_ $_[0];
		3498	get_slot 0.1, 100;
		3499	cf::arch::commit_load;
		3500
		3501	$status
		3502	}
		3503
		3504	sub reload_regions {
		3505	# HACK to clear player env face cache, we need some signal framework
		3506	# for this (global event?)
		3507	%ext::player_env::MUSIC_FACE_CACHE = ();
		3508
		3509	load_resource_file "$MAPDIR/regions"
		3510	or die "unable to load regions file\n";
		3511
		3512	for (cf::region::list) {
		3513	$_->{match} = qr/$_->{match}/
		3514	if exists $_->{match};
		3515	}
		3516	}
		3517
		3518	sub reload_facedata {
		3519	load_facedata "$DATADIR/facedata"
		3520	or die "unable to load facedata\n";
		3521	}
		3522
		3523	sub reload_archetypes {
		3524	load_resource_file "$DATADIR/archetypes"
		3525	or die "unable to load archetypes\n";
		3526	}
		3527
		3528	sub reload_treasures {
		3529	load_resource_file "$DATADIR/treasures"
		3530	or die "unable to load treasurelists\n";
		3531	}
		3532
		3533	sub reload_sound {
		3534	trace "loading sound config from $DATADIR/sound\n";
		3535
		3536	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3537	or die "$DATADIR/sound $!";
		3538
		3539	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3540
		3541	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3542	my $sound = $soundconf->{compat}[$_]
		3543	or next;
		3544
		3545	my $face = cf::face::find "sound/$sound->[1]";
		3546	cf::sound::set $sound->[0] => $face;
		3547	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3548	}
		3549
		3550	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3551	my $face = cf::face::find "sound/$v";
		3552	cf::sound::set $k => $face;
		3553	}
		3554	}
		3555
		3556	sub reload_resources {
		3557	trace "reloading resource files...\n";
		3558
		3559	reload_exp_table;
		3560	reload_materials;
		3561	reload_facedata;
		3562	reload_sound;
		3563	reload_archetypes;
		3564	reload_regions;
		3565	reload_treasures;
		3566
		3567	trace "finished reloading resource files\n";
		3568	}
		3569
		3570	sub reload_config {
		3571	trace "reloading config file...\n";
		3572
		3573	0 < aio_load "$CONFDIR/config", my $config
		3574	or die "$CONFDIR/config: $!";
		3575
		3576	utf8::decode $config;
		3577	*CFG = yaml_load $config;
		3578
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3579	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3580
		3581	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3582	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2000		3583
2001	if (exists $CFG{mlockall}) {	3584	if (exists $CFG{mlockall}) {
2002	eval {	3585	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	3586	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	3587	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	3588	};
2006	warn $@ if $@;	3589	warn $@ if $@;
2007	}	3590	}
2008	}	3591	}
2009		3592
		3593	sub pidfile() {
		3594	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3595	or die "$PIDFILE: $!";
		3596	flock $fh, &Fcntl::LOCK_EX
		3597	or die "$PIDFILE: flock: $!";
		3598	$fh
		3599	}
		3600
		3601	# make sure only one server instance is running at any one time
		3602	sub atomic {
		3603	my $fh = pidfile;
		3604
		3605	my $pid = <$fh>;
		3606	kill 9, $pid if $pid > 0;
		3607
		3608	seek $fh, 0, 0;
		3609	print $fh $$;
		3610	}
		3611
		3612	sub main_loop {
		3613	trace "EV::loop starting\n";
		3614	if (1) {
		3615	EV::loop;
		3616	}
		3617	trace "EV::loop returned\n";
		3618	goto &main_loop unless $REALLY_UNLOOP;
		3619	}
		3620
2010	sub main {	3621	sub main {
		3622	cf::init_globals; # initialise logging
		3623
		3624	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3625	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3626	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3627	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3628
		3629	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3630
2011	# we must not ever block the main coroutine	3631	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	3632	local $Coro::idle = sub {
2013	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3633	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2014	(Coro::unblock_sub {	3634	(async {
2015	Event::one_event;	3635	$Coro::current->{desc} = "IDLE BUG HANDLER";
2016	})->();	3636	EV::loop EV::LOOP_ONESHOT;
		3637	})->prio (Coro::PRIO_MAX);
2017	};	3638	};
2018		3639
2019	cfg_load;	3640	evthread_start IO::AIO::poll_fileno;
2020	db_load;	3641
		3642	cf::sync_job {
		3643	cf::incloader::init ();
		3644
		3645	cf::init_anim;
		3646	cf::init_attackmess;
		3647	cf::init_dynamic;
		3648
		3649	cf::load_settings;
		3650
		3651	reload_resources;
		3652	reload_config;
		3653	db_init;
		3654
		3655	cf::init_uuid;
		3656	cf::init_signals;
		3657	cf::init_skills;
		3658
		3659	cf::init_beforeplay;
		3660
		3661	atomic;
		3662
2021	load_extensions;	3663	load_extensions;
2022	Event::loop;	3664
		3665	utime time, time, $RUNTIMEFILE;
		3666
		3667	# no (long-running) fork's whatsoever before this point(!)
		3668	use POSIX ();
		3669	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3670
		3671	cf::_post_init 0;
		3672	};
		3673
		3674	cf::object::thawer::errors_are_fatal 0;
		3675	info "parse errors in files are no longer fatal from this point on.\n";
		3676
		3677	my $free_main; $free_main = EV::idle sub {
		3678	undef $free_main;
		3679	undef &main; # free gobs of memory :)
		3680	};
		3681
		3682	goto &main_loop;
2023	}	3683	}
2024		3684
2025	#############################################################################	3685	#############################################################################
2026	# initialisation	3686	# initialisation and cleanup
2027		3687
		3688	# install some emergency cleanup handlers
		3689	BEGIN {
		3690	our %SIGWATCHER = ();
		3691	for my $signal (qw(INT HUP TERM)) {
		3692	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3693	cf::cleanup "SIG$signal";
		3694	};
		3695	}
		3696	}
		3697
		3698	sub write_runtime_sync {
		3699	my $t0 = AE::time;
		3700
		3701	# first touch the runtime file to show we are still running:
		3702	# the fsync below can take a very very long time.
		3703
		3704	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3705
		3706	my $guard = cf::lock_acquire "write_runtime";
		3707
		3708	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3709	or return;
		3710
		3711	my $value = $cf::RUNTIME + 90 + 10;
		3712	# 10 is the runtime save interval, for a monotonic clock
		3713	# 60 allows for the watchdog to kill the server.
		3714
		3715	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3716	and return;
		3717
		3718	# always fsync - this file is important
		3719	aio_fsync $fh
		3720	and return;
		3721
		3722	# touch it again to show we are up-to-date
		3723	aio_utime $fh, undef, undef;
		3724
		3725	close $fh
		3726	or return;
		3727
		3728	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3729	and return;
		3730
		3731	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3732
		3733	1
		3734	}
		3735
		3736	our $uuid_lock;
		3737	our $uuid_skip;
		3738
		3739	sub write_uuid_sync($) {
		3740	$uuid_skip ||= $_[0];
		3741
		3742	return if $uuid_lock;
		3743	local $uuid_lock = 1;
		3744
		3745	my $uuid = "$LOCALDIR/uuid";
		3746
		3747	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3748	or return;
		3749
		3750	my $value = uuid_seq uuid_cur;
		3751
		3752	unless ($value) {
		3753	info "cowardly refusing to write zero uuid value!\n";
		3754	return;
		3755	}
		3756
		3757	my $value = uuid_str $value + $uuid_skip;
		3758	$uuid_skip = 0;
		3759
		3760	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3761	and return;
		3762
		3763	# always fsync - this file is important
		3764	aio_fsync $fh
		3765	and return;
		3766
		3767	close $fh
		3768	or return;
		3769
		3770	aio_rename "$uuid~", $uuid
		3771	and return;
		3772
		3773	trace "uuid file written ($value).\n";
		3774
		3775	1
		3776
		3777	}
		3778
		3779	sub write_uuid($$) {
		3780	my ($skip, $sync) = @_;
		3781
		3782	$sync ? write_uuid_sync $skip
		3783	: async { write_uuid_sync $skip };
		3784	}
		3785
		3786	sub emergency_save() {
		3787	my $freeze_guard = cf::freeze_mainloop;
		3788
		3789	info "emergency_perl_save: enter\n";
		3790
		3791	# this is a trade-off: we want to be very quick here, so
		3792	# save all maps without fsync, and later call a global sync
		3793	# (which in turn might be very very slow)
		3794	local $USE_FSYNC = 0;
		3795
		3796	cf::sync_job {
		3797	cf::write_runtime_sync; # external watchdog should not bark
		3798
		3799	# use a peculiar iteration method to avoid tripping on perl
		3800	# refcount bugs in for. also avoids problems with players
		3801	# and maps saved/destroyed asynchronously.
		3802	info "emergency_perl_save: begin player save\n";
		3803	for my $login (keys %cf::PLAYER) {
		3804	my $pl = $cf::PLAYER{$login} or next;
		3805	$pl->valid or next;
		3806	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3807	$pl->save;
		3808	}
		3809	info "emergency_perl_save: end player save\n";
		3810
		3811	cf::write_runtime_sync; # external watchdog should not bark
		3812
		3813	info "emergency_perl_save: begin map save\n";
		3814	for my $path (keys %cf::MAP) {
		3815	my $map = $cf::MAP{$path} or next;
		3816	$map->valid or next;
		3817	$map->save;
		3818	}
		3819	info "emergency_perl_save: end map save\n";
		3820
		3821	cf::write_runtime_sync; # external watchdog should not bark
		3822
		3823	info "emergency_perl_save: begin database checkpoint\n";
		3824	BDB::db_env_txn_checkpoint $DB_ENV;
		3825	info "emergency_perl_save: end database checkpoint\n";
		3826
		3827	info "emergency_perl_save: begin write uuid\n";
		3828	write_uuid_sync 1;
		3829	info "emergency_perl_save: end write uuid\n";
		3830
		3831	cf::write_runtime_sync; # external watchdog should not bark
		3832
		3833	trace "emergency_perl_save: syncing database to disk";
		3834	BDB::db_env_txn_checkpoint $DB_ENV;
		3835
		3836	info "emergency_perl_save: starting sync\n";
		3837	IO::AIO::aio_sync sub {
		3838	info "emergency_perl_save: finished sync\n";
		3839	};
		3840
		3841	cf::write_runtime_sync; # external watchdog should not bark
		3842
		3843	trace "emergency_perl_save: flushing outstanding aio requests";
		3844	while (IO::AIO::nreqs || BDB::nreqs) {
		3845	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3846	}
		3847
		3848	cf::write_runtime_sync; # external watchdog should not bark
		3849	};
		3850
		3851	info "emergency_perl_save: leave\n";
		3852	}
		3853
		3854	sub post_cleanup {
		3855	my ($make_core) = @_;
		3856
		3857	IO::AIO::flush;
		3858
		3859	error Carp::longmess "post_cleanup backtrace"
		3860	if $make_core;
		3861
		3862	my $fh = pidfile;
		3863	unlink $PIDFILE if <$fh> == $$;
		3864	}
		3865
		3866	# a safer delete_package, copied from Symbol
		3867	sub clear_package($) {
		3868	my $pkg = shift;
		3869
		3870	# expand to full symbol table name if needed
		3871	unless ($pkg =~ /^main::.*::$/) {
		3872	$pkg = "main$pkg" if $pkg =~ /^::/;
		3873	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3874	$pkg .= '::' unless $pkg =~ /::$/;
		3875	}
		3876
		3877	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3878	my $stem_symtab = *{$stem}{HASH};
		3879
		3880	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3881	or return;
		3882
		3883	# clear all symbols
		3884	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3885	for my $name (keys %$leaf_symtab) {
		3886	_gv_clear *{"$pkg$name"};
		3887	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3888	}
		3889	}
		3890
2028	sub reload() {	3891	sub do_reload_perl() {
2029	# can/must only be called in main	3892	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	3893	unless (in_main) {
2031	warn "can only reload from main coroutine\n";	3894	error "can only reload from main coroutine";
2032	return;	3895	return;
2033	}	3896	}
2034		3897
2035	warn "reloading...";	3898	return if $RELOAD++;
2036		3899
2037	my $guard = freeze_mainloop;	3900	my $t1 = AE::time;
		3901
		3902	while ($RELOAD) {
		3903	cf::get_slot 0.1, -1, "reload_perl";
		3904	info "perl_reload: reloading...";
		3905
		3906	trace "perl_reload: entering sync_job";
		3907
		3908	cf::sync_job {
2038	cf::emergency_save;	3909	#cf::emergency_save;
2039		3910
2040	eval {	3911	trace "perl_reload: cancelling all extension coros";
2041	# if anything goes wrong in here, we should simply crash as we already saved
2042
2043	# cancel all watchers
2044	for (Event::all_watchers) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;
2046	}
2047
2048	# cancel all extension coros
2049	$_->cancel for values %EXT_CORO;	3912	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();	3913	%EXT_CORO = ();
2051		3914
2052	# unload all extensions	3915	trace "perl_reload: removing commands";
2053	for (@exts) {	3916	%COMMAND = ();
2054	warn "unloading <$_>";
2055	unload_extension $_;
2056	}
2057		3917
2058	# unload all modules loaded from $LIBDIR	3918	trace "perl_reload: removing ext/exti commands";
2059	while (my ($k, $v) = each %INC) {	3919	%EXTCMD = ();
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3920	%EXTICMD = ();
2061		3921
2062	warn "removing <$k>";	3922	trace "perl_reload: unloading/nuking all extensions";
2063	delete $INC{$k};	3923	for my $pkg (@EXTS) {
		3924	trace "... unloading $pkg";
2064		3925
2065	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;
2067
2068	if (my $cb = $k->can ("unload_module")) {	3926	if (my $cb = $pkg->can ("unload")) {
		3927	eval {
2069	$cb->();	3928	$cb->($pkg);
		3929	1
		3930	} or error "$pkg unloaded, but with errors: $@";
		3931	}
		3932
		3933	trace "... clearing $pkg";
		3934	clear_package $pkg;
2070	}	3935	}
2071		3936
2072	Symbol::delete_package $k;	3937	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3938	while (my ($k, $v) = each %INC) {
		3939	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3940
		3941	trace "... unloading $k";
		3942	delete $INC{$k};
		3943
		3944	$k =~ s/\.pm$//;
		3945	$k =~ s/\//::/g;
		3946
		3947	if (my $cb = $k->can ("unload_module")) {
		3948	$cb->();
		3949	}
		3950
		3951	clear_package $k;
2073	}	3952	}
2074		3953
2075	# sync database to disk
2076	cf::db_sync;
2077	IO::AIO::flush;
2078
2079	# get rid of safe::, as good as possible	3954	trace "perl_reload: getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	3955	clear_package "safe::$_"
2081	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3956	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2082		3957
2083	# remove register_script_function callbacks	3958	trace "perl_reload: unloading cf.pm \"a bit\"";
2084	# TODO
2085
2086	# unload cf.pm "a bit"
2087	delete $INC{"cf.pm"};	3959	delete $INC{"cf.pm"};
		3960	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2088		3961
2089	# don't, removes xs symbols, too,	3962	# don't, removes xs symbols, too,
2090	# and global variables created in xs	3963	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	3964	#clear_package __PACKAGE__;
2092		3965
2093	# reload cf.pm	3966	info "perl_reload: unload completed, starting to reload now";
2094	warn "reloading cf.pm";	3967
		3968	trace "perl_reload: reloading cf.pm";
2095	require cf;	3969	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3970	cf::_connect_to_perl_1;
2097		3971
2098	# load config and database again	3972	trace "perl_reload: loading config and database again";
2099	cf::cfg_load;	3973	cf::reload_config;
2100	cf::db_load;
2101		3974
2102	# load extensions	3975	trace "perl_reload: loading extensions";
2103	warn "load extensions";
2104	cf::load_extensions;	3976	cf::load_extensions;
2105		3977
2106	# reattach attachments to objects	3978	if ($REATTACH_ON_RELOAD) {
2107	warn "reattach";	3979	trace "perl_reload: reattaching attachments to objects/players";
2108	_global_reattach;	3980	_global_reattach; # objects, sockets
		3981	trace "perl_reload: reattaching attachments to maps";
		3982	reattach $_ for values %MAP;
		3983	trace "perl_reload: reattaching attachments to players";
		3984	reattach $_ for values %PLAYER;
		3985	}
		3986
		3987	cf::_post_init 1;
		3988
		3989	trace "perl_reload: leaving sync_job";
		3990
		3991	1
		3992	} or do {
		3993	error $@;
		3994	cf::cleanup "perl_reload: error, exiting.";
		3995	};
		3996
		3997	--$RELOAD;
		3998	}
		3999
		4000	$t1 = AE::time - $t1;
		4001	info "perl_reload: completed in ${t1}s\n";
		4002	};
		4003
		4004	our $RELOAD_WATCHER; # used only during reload
		4005
		4006	sub reload_perl() {
		4007	# doing reload synchronously and two reloads happen back-to-back,
		4008	# coro crashes during coro_state_free->destroy here.
		4009
		4010	$RELOAD_WATCHER ||= cf::async {
		4011	Coro::AIO::aio_wait cache_extensions;
		4012
		4013	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4014	do_reload_perl;
		4015	undef $RELOAD_WATCHER;
		4016	};
2109	};	4017	};
2110
2111	if ($@) {
2112	warn $@;
2113	warn "error while reloading, exiting.";
2114	exit 1;
2115	}
2116
2117	warn "reloaded successfully";
2118	};
2119
2120	#############################################################################
2121
2122	unless ($LINK_MAP) {
2123	$LINK_MAP = cf::map::new;
2124
2125	$LINK_MAP->width (41);
2126	$LINK_MAP->height (41);
2127	$LINK_MAP->alloc;
2128	$LINK_MAP->path ("{link}");
2129	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2130	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2131
2132	# dirty hack because... archetypes are not yet loaded
2133	Event->timer (
2134	after => 2,
2135	cb => sub {
2136	$_[0]->w->cancel;
2137
2138	# provide some exits "home"
2139	my $exit = cf::object::new "exit";
2140
2141	$exit->slaying ($EMERGENCY_POSITION->[0]);
2142	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2143	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2144
2145	$LINK_MAP->insert ($exit->clone, 19, 19);
2146	$LINK_MAP->insert ($exit->clone, 19, 20);
2147	$LINK_MAP->insert ($exit->clone, 19, 21);
2148	$LINK_MAP->insert ($exit->clone, 20, 19);
2149	$LINK_MAP->insert ($exit->clone, 20, 21);
2150	$LINK_MAP->insert ($exit->clone, 21, 19);
2151	$LINK_MAP->insert ($exit->clone, 21, 20);
2152	$LINK_MAP->insert ($exit->clone, 21, 21);
2153
2154	$exit->destroy;
2155	});
2156
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}	4018	}
2162
2163	register "<global>", __PACKAGE__;
2164		4019
2165	register_command "reload" => sub {	4020	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	4021	my ($who, $arg) = @_;
2167		4022
2168	if ($who->flag (FLAG_WIZ)) {	4023	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");
2170	reload;
2171	$who->message ("end of reload.");	4024	$who->message ("reloading server.");
		4025	async {
		4026	$Coro::current->{desc} = "perl_reload";
		4027	reload_perl;
		4028	};
2172	}	4029	}
2173	};	4030	};
2174		4031
2175	unshift @INC, $LIBDIR;	4032	#############################################################################
2176		4033
2177	$TICK_WATCHER = Event->timer (	4034	my $bug_warning = 0;
2178	reentrant => 0,	4035
2179	prio => 0,	4036	our @WAIT_FOR_TICK;
2180	at => $NEXT_TICK || $TICK,	4037	our @WAIT_FOR_TICK_BEGIN;
2181	data => WF_AUTOCANCEL,	4038
2182	cb => sub {	4039	sub wait_for_tick() {
		4040	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4041
		4042	my $signal = new Coro::Signal;
		4043	push @WAIT_FOR_TICK, $signal;
		4044	$signal->wait;
		4045	}
		4046
		4047	sub wait_for_tick_begin() {
		4048	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4049
		4050	my $signal = new Coro::Signal;
		4051	push @WAIT_FOR_TICK_BEGIN, $signal;
		4052	$signal->wait;
		4053	}
		4054
		4055	sub tick {
		4056	if ($Coro::current != $Coro::main) {
		4057	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4058	unless ++$bug_warning > 10;
		4059	return;
		4060	}
		4061
2183	cf::server_tick; # one server iteration	4062	cf::server_tick; # one server iteration
2184	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;
2186		4063
2187	# if we are delayed by four ticks or more, skip them all	4064	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2189		4065
2190	$TICK_WATCHER->at ($NEXT_TICK);	4066	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2191	$TICK_WATCHER->start;	4067	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2192	},	4068	Coro::async_pool {
2193	);	4069	$Coro::current->{desc} = "runtime saver";
2194
2195	IO::AIO::max_poll_time $TICK * 0.2;
2196
2197	Event->io (
2198	fd => IO::AIO::poll_fileno,
2199	poll => 'r',
2200	prio => 5,
2201	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,
2203	);
2204
2205	Event->timer (
2206	data => WF_AUTOCANCEL,
2207	after => 0,
2208	interval => 10,
2209	cb => sub {
2210	(Coro::unblock_sub {
2211	write_runtime	4070	write_runtime_sync
2212	or warn "ERROR: unable to write runtime file: $!";	4071	or error "ERROR: unable to write runtime file: $!";
2213	})->();	4072	};
2214	},	4073	}
2215	);	4074
		4075	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4076	$sig->send;
		4077	}
		4078	while (my $sig = shift @WAIT_FOR_TICK) {
		4079	$sig->send;
		4080	}
		4081
		4082	$LOAD = ($NOW - $TICK_START) / $TICK;
		4083	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4084
		4085	if (0) {
		4086	if ($NEXT_TICK) {
		4087	my $jitter = $TICK_START - $NEXT_TICK;
		4088	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4089	debug "jitter $JITTER\n";#d#
		4090	}
		4091	}
		4092	}
		4093
		4094	{
		4095	# configure BDB
		4096
		4097	BDB::min_parallel 16;
		4098	BDB::max_poll_reqs $TICK * 0.1;
		4099	$AnyEvent::BDB::WATCHER->priority (1);
		4100
		4101	unless ($DB_ENV) {
		4102	$DB_ENV = BDB::db_env_create;
		4103	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4104	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4105	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4106	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4107	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4108
		4109	cf::sync_job {
		4110	eval {
		4111	BDB::db_env_open
		4112	$DB_ENV,
		4113	$BDBDIR,
		4114	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4115	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4116	0666;
		4117
		4118	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4119	};
		4120
		4121	cf::cleanup "db_env_open(db): $@" if $@;
		4122	};
		4123	}
		4124
		4125	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4126	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4127	};
		4128	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4129	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4130	};
		4131	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4132	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4133	};
		4134	}
		4135
		4136	{
		4137	# configure IO::AIO
		4138
		4139	IO::AIO::min_parallel 8;
		4140	IO::AIO::max_poll_time $TICK * 0.1;
		4141	undef $AnyEvent::AIO::WATCHER;
		4142	}
		4143
		4144	our $_log_backtrace;
		4145	our $_log_backtrace_last;
		4146
		4147	sub _log_backtrace {
		4148	my ($msg, @addr) = @_;
		4149
		4150	$msg =~ s/\n$//;
		4151
		4152	if ($_log_backtrace_last eq $msg) {
		4153	LOG llevInfo, "[ABT] $msg\n";
		4154	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4155	# limit the # of concurrent backtraces
		4156	} elsif ($_log_backtrace < 2) {
		4157	$_log_backtrace_last = $msg;
		4158	++$_log_backtrace;
		4159	my $perl_bt = Carp::longmess $msg;
		4160	async {
		4161	$Coro::current->{desc} = "abt $msg";
		4162
		4163	my @bt = fork_call {
		4164	@addr = map { sprintf "%x", $_ } @addr;
		4165	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4166	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4167	or die "addr2line: $!";
		4168
		4169	my @funcs;
		4170	my @res = <$fh>;
		4171	chomp for @res;
		4172	while (@res) {
		4173	my ($func, $line) = splice @res, 0, 2, ();
		4174	push @funcs, "[$func] $line";
		4175	}
		4176
		4177	@funcs
		4178	};
		4179
		4180	LOG llevInfo, "[ABT] $perl_bt\n";
		4181	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4182	LOG llevInfo, "[ABT] $_\n" for @bt;
		4183	--$_log_backtrace;
		4184	};
		4185	} else {
		4186	LOG llevInfo, "[ABT] $msg\n";
		4187	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4188	}
		4189	}
		4190
		4191	# load additional modules
		4192	require "cf/$_.pm" for @EXTRA_MODULES;
		4193	cf::_connect_to_perl_2;
2216		4194
2217	END { cf::emergency_save }	4195	END { cf::emergency_save }
2218		4196
2219	1	4197	1
2220		4198

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