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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.139 by root, Fri Jan 5 19:12:03 2007 UTC vs.
Revision 1.555 by root, Wed Jun 30 01:32:56 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 (Coro::PRIO_MAX); # 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
32		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" };
		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
217
218	$LOCK{$key} = [];
219
220	Coro::guard {
221	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };
223	}
224	}	440	}
225		441
226	sub freeze_mainloop {	442	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	443	tick_inhibit_inc;
228		444
229	my $guard = Coro::guard { $TICK_WATCHER->start };	445	&Guard::guard (\&tick_inhibit_dec);
230	$TICK_WATCHER->stop;
231	$guard
232	}	446	}
		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($$) {
		456	my ($interval, $cb) = @_;
		457
		458	my $start = rand List::Util::min 180, $interval;
		459
		460	EV::periodic $start, $interval, 0, $cb
		461	}
		462
		463	=item cf::get_slot $time[, $priority[, $name]]
		464
		465	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		466	This call blocks and returns only when you have at least C<$time> seconds
		467	of cpu time till the next tick. The slot is only valid till the next cede.
		468
		469	The optional C<$name> can be used to identify the job to run. It might be
		470	used for statistical purposes and should identify the same time-class.
		471
		472	Useful for short background jobs.
		473
		474	=cut
		475
		476	our @SLOT_QUEUE;
		477	our $SLOT_QUEUE;
		478	our $SLOT_DECAY = 0.9;
		479
		480	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		481	$SLOT_QUEUE = Coro::async {
		482	$Coro::current->desc ("timeslot manager");
		483
		484	my $signal = new Coro::Signal;
		485	my $busy;
		486
		487	while () {
		488	next_job:
		489
		490	my $avail = cf::till_tick;
		491
		492	for (0 .. $#SLOT_QUEUE) {
		493	if ($SLOT_QUEUE[$_][0] <= $avail) {
		494	$busy = 0;
		495	my $job = splice @SLOT_QUEUE, $_, 1, ();
		496	$job->[2]->send;
		497	Coro::cede;
		498	goto next_job;
		499	} else {
		500	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		501	}
		502	}
		503
		504	if (@SLOT_QUEUE) {
		505	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		506	push @cf::WAIT_FOR_TICK, $signal;
		507	$signal->wait;
		508	} else {
		509	$busy = 0;
		510	Coro::schedule;
		511	}
		512	}
		513	};
		514
		515	sub get_slot($;$$) {
		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	$sig->wait;
		528	}
		529
		530	=item cf::async { BLOCK }
		531
		532	Currently the same as Coro::async_pool, meaning you cannot use
		533	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		534	thing you are allowed to do is call C<prio> on it.
		535
		536	=cut
		537
		538	BEGIN { *async = \&Coro::async_pool }
233		539
234	=item cf::sync_job { BLOCK }	540	=item cf::sync_job { BLOCK }
235		541
236	The design of crossfire+ requires that the main coro ($Coro::main) is	542	The design of Deliantra requires that the main coroutine ($Coro::main)
237	always able to handle events or runnable, as crossfire+ is only partly	543	is always able to handle events or runnable, as Deliantra is only
238	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	544	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		545	acceptable.
239		546
240	If it must be done, put the blocking parts into C<sync_job>. This will run	547	If it must be done, put the blocking parts into C<sync_job>. This will run
241	the given BLOCK in another coroutine while waiting for the result. The	548	the given BLOCK in another coroutine while waiting for the result. The
242	server will be frozen during this time, so the block should either finish	549	server will be frozen during this time, so the block should either finish
243	fast or be very important.	550	fast or be very important.
…		…
245	=cut	552	=cut
246		553
247	sub sync_job(&) {	554	sub sync_job(&) {
248	my ($job) = @_;	555	my ($job) = @_;
249		556
250	if ($Coro::current == $Coro::main) {	557	if (in_main) {
		558	my $time = AE::time;
		559
251	# this is the main coro, too bad, we have to block	560	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	561	# till the operation succeeds, freezing the server :/
253		562
254	# TODO: use suspend/resume instead	563	#LOG llevError, Carp::longmess "sync job";#d#
255	# (but this is cancel-safe)	564
256	my $freeze_guard = freeze_mainloop;	565	my $freeze_guard = freeze_mainloop;
257		566
258	my $busy = 1;	567	my $busy = 1;
259	my @res;	568	my @res;
260		569
261	(Coro::async_pool {	570	(async {
		571	$Coro::current->desc ("sync job coro");
262	@res = eval { $job->() };	572	@res = eval { $job->() };
263	warn $@ if $@;	573	error $@ if $@;
264	undef $busy;	574	undef $busy;
265	})->prio (Coro::PRIO_MAX);	575	})->prio (Coro::PRIO_MAX);
266		576
267	while ($busy) {	577	while ($busy) {
268	unless (Coro::cede) {	578	if (Coro::nready) {
269	Coro::nready ? Event::one_event 0 : Event::one_event;
270	Coro::cede_notself unless Coro::cede;	579	Coro::cede_notself;
		580	} else {
		581	EV::loop EV::LOOP_ONESHOT;
271	}	582	}
272	}	583	}
		584
		585	my $time = AE::time - $time;
		586
		587	$TICK_START += $time; # do not account sync jobs to server load
273		588
274	wantarray ? @res : $res[0]	589	wantarray ? @res : $res[0]
275	} else {	590	} else {
276	# we are in another coroutine, how wonderful, everything just works	591	# we are in another coroutine, how wonderful, everything just works
277		592
278	$job->()	593	$job->()
279	}	594	}
280	}	595	}
281		596
282	=item $coro = cf::coro { BLOCK }	597	=item $coro = cf::async_ext { BLOCK }
283		598
284	Creates (and readies) and returns a new coro. This coro is automcatially	599	Like async, but this coro is automatically being canceled when the
285	being canceled when the extension calling this is being unloaded.	600	extension calling this is being unloaded.
286		601
287	=cut	602	=cut
288		603
289	sub coro(&) {	604	sub async_ext(&) {
290	my $cb = shift;	605	my $cb = shift;
291		606
292	my $coro = &Coro::async_pool ($cb);	607	my $coro = &Coro::async ($cb);
293		608
294	$coro->on_destroy (sub {	609	$coro->on_destroy (sub {
295	delete $EXT_CORO{$coro+0};	610	delete $EXT_CORO{$coro+0};
296	});	611	});
297	$EXT_CORO{$coro+0} = $coro;	612	$EXT_CORO{$coro+0} = $coro;
298		613
299	$coro	614	$coro
300	}	615	}
301		616
302	sub write_runtime {	617	=item fork_call { }, @args
303	my $runtime = cf::localdir . "/runtime";
304		618
305	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	619	Executes the given code block with the given arguments in a seperate
306	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.
307		623
308	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	624	=cut
309	(aio_write $fh, 0, (length $value), $value, 0) <= 0
310	and return;
311		625
312	aio_fsync $fh	626	sub post_fork {
313	and return;	627	reset_signals;
		628	}
314		629
315	close $fh	630	sub fork_call(&@) {
316	or return;	631	my ($cb, @args) = @_;
317		632
318	aio_rename "$runtime~", $runtime	633	# we seemingly have to make a local copy of the whole thing,
319	and return;	634	# otherwise perl prematurely frees the stuff :/
		635	# TODO: investigate and fix (likely this will be rather laborious)
320		636
		637	my @res = Coro::Util::fork_eval {
		638	cf::post_fork;
		639	&$cb
		640	} @args;
		641
		642	wantarray ? @res : $res[-1]
		643	}
		644
		645	sub objinfo {
321	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 => $type });
322	}	821	}
323		822
324	=back	823	=back
325		824
326	=cut	825	=cut
327		826
328	#############################################################################	827	#############################################################################
329		828
330	package cf::path;
331
332	sub new {
333	my ($class, $path, $base) = @_;
334
335	$path = $path->as_string if ref $path;
336
337	my $self = bless { }, $class;
338
339	# {... are special paths that are not touched
340	# ?xxx/... are special absolute paths
341	# ?random/... random maps
342	# /! non-realised random map exit
343	# /... normal maps
344	# ~/... per-player maps without a specific player (DO NOT USE)
345	# ~user/... per-player map of a specific user
346
347	if ($path =~ /^{/) {
348	# fine as it is
349	} elsif ($path =~ s{^\?random/}{}) {
350	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
351	$self->{random} = cf::from_json $data;
352	} else {
353	if ($path =~ s{^~([^/]+)?}{}) {
354	$self->{user_rel} = 1;
355
356	if (defined $1) {
357	$self->{user} = $1;
358	} elsif ($base =~ m{^~([^/]+)/}) {
359	$self->{user} = $1;
360	} else {
361	warn "cannot resolve user-relative path without user <$path,$base>\n";
362	}
363	} elsif ($path =~ /^\//) {
364	# already absolute
365	} else {
366	$base =~ s{[^/]+/?$}{};
367	return $class->new ("$base/$path");
368	}
369
370	for ($path) {
371	redo if s{/\.?/}{/};
372	redo if s{/[^/]+/\.\./}{/};
373	}
374	}
375
376	$self->{path} = $path;
377
378	$self
379	}
380
381	# the name / primary key / in-game path
382	sub as_string {
383	my ($self) = @_;
384
385	$self->{user_rel} ? "~$self->{user}$self->{path}"
386	: $self->{random} ? "?random/$self->{path}"
387	: $self->{path}
388	}
389
390	# the displayed name, this is a one way mapping
391	sub visible_name {
392	my ($self) = @_;
393
394	# if (my $rmp = $self->{random}) {
395	# # todo: be more intelligent about this
396	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
397	# } else {
398	$self->as_string
399	# }
400	}
401
402	# escape the /'s in the path
403	sub _escaped_path {
404	# ∕ is U+2215
405	(my $path = $_[0]{path}) =~ s/\//∕/g;
406	$path
407	}
408
409	# the original (read-only) location
410	sub load_path {
411	my ($self) = @_;
412
413	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
414	}
415
416	# the temporary/swap location
417	sub save_path {
418	my ($self) = @_;
419
420	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
421	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
422	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
423	}
424
425	# the unique path, might be eq to save_path
426	sub uniq_path {
427	my ($self) = @_;
428
429	$self->{user_rel} || $self->{random}
430	? undef
431	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
432	}
433
434	# return random map parameters, or undef
435	sub random_map_params {
436	my ($self) = @_;
437
438	$self->{random}
439	}
440
441	# this is somewhat ugly, but style maps do need special treatment
442	sub is_style_map {
443	$_[0]{path} =~ m{^/styles/}
444	}
445
446	package cf;
447
448	#############################################################################
449
450	=head2 ATTACHABLE OBJECTS	829	=head2 ATTACHABLE OBJECTS
451		830
452	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
453	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")
454	to it. All such attachable objects support the following methods.	833	to it. All such attachable objects support the following methods.
455		834
456	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>
457	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
458	crossfire+).	837	Deliantra).
459		838
460	=over 4	839	=over 4
461		840
462	=item $attachable->attach ($attachment, key => $value...)	841	=item $attachable->attach ($attachment, key => $value...)
463		842
…		…
507	=item cf::CLASS::attachment $name, ...	886	=item cf::CLASS::attachment $name, ...
508		887
509	Register an attachment by C<$name> through which attachable objects of the	888	Register an attachment by C<$name> through which attachable objects of the
510	given CLASS can refer to this attachment.	889	given CLASS can refer to this attachment.
511		890
512	Some classes such as crossfire maps and objects can specify attachments	891	Some classes such as deliantra maps and objects can specify attachments
513	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.
514		893
515	These calls expect any number of the following handler/hook descriptions:	894	These calls expect any number of the following handler/hook descriptions:
516		895
517	=over 4	896	=over 4
…		…
577	our @CB_TYPE = (); # registry for type (cf-object class) based events	956	our @CB_TYPE = (); # registry for type (cf-object class) based events
578	our @CB_MAP = ();	957	our @CB_MAP = ();
579		958
580	my %attachment;	959	my %attachment;
581		960
		961	sub cf::attachable::thawer_merge {
		962	# simply override everything except _meta
		963	local $_[0]{_meta};
		964	%{$_[0]} = %{$_[1]};
		965	}
		966
582	sub _attach_cb($$$$) {	967	sub _attach_cb($$$$) {
583	my ($registry, $event, $prio, $cb) = @_;	968	my ($registry, $event, $prio, $cb) = @_;
584		969
585	use sort 'stable';	970	use sort 'stable';
586		971
…		…
620	$registry = $CB_TYPE[$object_type] ||= [];	1005	$registry = $CB_TYPE[$object_type] ||= [];
621		1006
622	} elsif ($type eq "subtype") {	1007	} elsif ($type eq "subtype") {
623	defined $object_type or Carp::croak "subtype specified without type";	1008	defined $object_type or Carp::croak "subtype specified without type";
624	my $object_subtype = shift @arg;	1009	my $object_subtype = shift @arg;
625	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1010	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
626		1011
627	} elsif ($type eq "package") {	1012	} elsif ($type eq "package") {
628	my $pkg = shift @arg;	1013	my $pkg = shift @arg;
629		1014
630	while (my ($name, $id) = each %cb_id) {	1015	while (my ($name, $id) = each %cb_id) {
…		…
635		1020
636	} elsif (exists $cb_id{$type}) {	1021	} elsif (exists $cb_id{$type}) {
637	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1022	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
638		1023
639	} elsif (ref $type) {	1024	} elsif (ref $type) {
640	warn "attaching objects not supported, ignoring.\n";	1025	error "attaching objects not supported, ignoring.\n";
641		1026
642	} else {	1027	} else {
643	shift @arg;	1028	shift @arg;
644	warn "attach argument '$type' not supported, ignoring.\n";	1029	error "attach argument '$type' not supported, ignoring.\n";
645	}	1030	}
646	}	1031	}
647	}	1032	}
648		1033
649	sub _object_attach {	1034	sub _object_attach {
…		…
659	_attach $registry, $klass, @attach;	1044	_attach $registry, $klass, @attach;
660	}	1045	}
661		1046
662	$obj->{$name} = \%arg;	1047	$obj->{$name} = \%arg;
663	} else {	1048	} else {
664	warn "object uses attachment '$name' that is not available, postponing.\n";	1049	info "object uses attachment '$name' which is not available, postponing.\n";
665	}	1050	}
666		1051
667	$obj->{_attachment}{$name} = undef;	1052	$obj->{_attachment}{$name} = undef;
668	}	1053	}
669		1054
…		…
671	if (ref $_[0]) {	1056	if (ref $_[0]) {
672	_object_attach @_;	1057	_object_attach @_;
673	} else {	1058	} else {
674	_attach shift->_attach_registry, @_;	1059	_attach shift->_attach_registry, @_;
675	}	1060	}
		1061	_recalc_want;
676	};	1062	};
677		1063
678	# all those should be optimised	1064	# all those should be optimised
679	sub cf::attachable::detach {	1065	sub cf::attachable::detach {
680	my ($obj, $name) = @_;	1066	my ($obj, $name) = @_;
…		…
683	delete $obj->{_attachment}{$name};	1069	delete $obj->{_attachment}{$name};
684	reattach ($obj);	1070	reattach ($obj);
685	} else {	1071	} else {
686	Carp::croak "cannot, currently, detach class attachments";	1072	Carp::croak "cannot, currently, detach class attachments";
687	}	1073	}
		1074	_recalc_want;
688	};	1075	};
689		1076
690	sub cf::attachable::attached {	1077	sub cf::attachable::attached {
691	my ($obj, $name) = @_;	1078	my ($obj, $name) = @_;
692		1079
…		…
707	";	1094	";
708	die if $@;	1095	die if $@;
709	}	1096	}
710		1097
711	our $override;	1098	our $override;
712	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?
713		1100
714	sub override {	1101	sub override {
715	$override = 1;	1102	$override = 1;
716	@invoke_results = ();	1103	@INVOKE_RESULTS = (@_);
717	}	1104	}
718		1105
719	sub do_invoke {	1106	sub do_invoke {
720	my $event = shift;	1107	my $event = shift;
721	my $callbacks = shift;	1108	my $callbacks = shift;
722		1109
723	@invoke_results = ();	1110	@INVOKE_RESULTS = ();
724		1111
725	local $override;	1112	local $override;
726		1113
727	for (@$callbacks) {	1114	for (@$callbacks) {
728	eval { &{$_->[1]} };	1115	eval { &{$_->[1]} };
729		1116
730	if ($@) {	1117	if ($@) {
731	warn "$@";
732	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1118	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
733	override;	1119	override;
734	}	1120	}
735		1121
736	return 1 if $override;	1122	return 1 if $override;
737	}	1123	}
738		1124
739	0	1125	0
740	}	1126	}
741		1127
742	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1128	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
743		1129
744	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1130	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
745		1131
746	Generate an object-specific event with the given arguments.	1132	Generate an object-specific event with the given arguments.
747		1133
748	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
749	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
750	results (if you must, access C<@cf::invoke_results> directly).	1136	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
751		1137
752	=back	1138	=back
753		1139
754	=cut	1140	=cut
755		1141
756	#############################################################################	1142	#############################################################################
757	# 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	}
758		1186
759	sub reattach {	1187	sub reattach {
760	# basically do the same as instantiate, without calling instantiate	1188	# basically do the same as instantiate, without calling instantiate
761	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
762		1193
763	my $registry = $obj->registry;	1194	my $registry = $obj->registry;
764		1195
765	@$registry = ();	1196	@$registry = ();
766		1197
…		…
771	for (@$attach) {	1202	for (@$attach) {
772	my ($klass, @attach) = @$_;	1203	my ($klass, @attach) = @$_;
773	_attach $registry, $klass, @attach;	1204	_attach $registry, $klass, @attach;
774	}	1205	}
775	} else {	1206	} else {
776	warn "object uses attachment '$name' that is not available, postponing.\n";	1207	info "object uses attachment '$name' that is not available, postponing.\n";
777	}	1208	}
778	}	1209	}
779	}	1210	}
780		1211
781	cf::attachable->attach (	1212	cf::attachable->attach (
782	prio => -1000000,	1213	prio => -1000000,
783	on_instantiate => sub {	1214	on_instantiate => sub {
784	my ($obj, $data) = @_;	1215	my ($obj, $data) = @_;
785		1216
786	$data = from_json $data;	1217	$data = decode_json $data;
787		1218
788	for (@$data) {	1219	for (@$data) {
789	my ($name, $args) = @$_;	1220	my ($name, $args) = @$_;
790		1221
791	$obj->attach ($name, %{$args || {} });	1222	$obj->attach ($name, %{$args || {} });
…		…
807	sub object_freezer_save {	1238	sub object_freezer_save {
808	my ($filename, $rdata, $objs) = @_;	1239	my ($filename, $rdata, $objs) = @_;
809		1240
810	sync_job {	1241	sync_job {
811	if (length $$rdata) {	1242	if (length $$rdata) {
		1243	utf8::decode (my $decname = $filename);
812	warn sprintf "saving %s (%d,%d)\n",	1244	trace sprintf "saving %s (%d,%d)\n",
813	$filename, length $$rdata, scalar @$objs;	1245	$decname, length $$rdata, scalar @$objs
		1246	if $VERBOSE_IO;
814		1247
815	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1248	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
816	chmod SAVE_MODE, $fh;	1249	aio_chmod $fh, SAVE_MODE;
817	aio_write $fh, 0, (length $$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;
818	aio_fsync $fh;	1253	aio_fsync $fh;
		1254	}
819	close $fh;	1255	aio_close $fh;
820		1256
821	if (@$objs) {	1257	if (@$objs) {
822	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) {
823	chmod SAVE_MODE, $fh;	1259	aio_chmod $fh, SAVE_MODE;
824	my $data = Storable::nfreeze { version => 1, objs => $objs };	1260	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
825	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;
826	aio_fsync $fh;	1264	aio_fsync $fh;
		1265	}
827	close $fh;	1266	aio_close $fh;
828	aio_rename "$filename.pst~", "$filename.pst";	1267	aio_rename "$filename.pst~", "$filename.pst";
829	}	1268	}
830	} else {	1269	} else {
831	aio_unlink "$filename.pst";	1270	aio_unlink "$filename.pst";
832	}	1271	}
833		1272
834	aio_rename "$filename~", $filename;	1273	aio_rename "$filename~", $filename;
		1274
		1275	$filename =~ s%/[^/]+$%%;
		1276	aio_pathsync $filename if $cf::USE_FSYNC;
835	} else {	1277	} else {
836	warn "FATAL: $filename~: $!\n";	1278	error "unable to save objects: $filename~: $!\n";
837	}	1279	}
838	} else {	1280	} else {
839	aio_unlink $filename;	1281	aio_unlink $filename;
840	aio_unlink "$filename.pst";	1282	aio_unlink "$filename.pst";
841	}	1283	}
842	}	1284	};
843	}	1285	}
844		1286
845	sub object_freezer_as_string {	1287	sub object_freezer_as_string {
846	my ($rdata, $objs) = @_;	1288	my ($rdata, $objs) = @_;
847		1289
…		…
859	or return;	1301	or return;
860		1302
861	unless (aio_stat "$filename.pst") {	1303	unless (aio_stat "$filename.pst") {
862	(aio_load "$filename.pst", $av) >= 0	1304	(aio_load "$filename.pst", $av) >= 0
863	or return;	1305	or return;
		1306
864	$av = eval { (Storable::thaw $av)->{objs} };	1307	my $st = eval { Coro::Storable::thaw $av };
		1308	$av = $st->{objs};
865	}	1309	}
866		1310
		1311	utf8::decode (my $decname = $filename);
867	warn sprintf "loading %s (%d)\n",	1312	trace sprintf "loading %s (%d,%d)\n",
868	$filename, length $data, scalar @{$av || []};#d#	1313	$decname, length $data, scalar @{$av || []}
		1314	if $VERBOSE_IO;
		1315
869	return ($data, $av);	1316	($data, $av)
870	}	1317	}
		1318
		1319	=head2 COMMAND CALLBACKS
		1320
		1321	=over 4
		1322
		1323	=cut
871		1324
872	#############################################################################	1325	#############################################################################
873	# command handling &c	1326	# command handling &c
874		1327
875	=item cf::register_command $name => \&callback($ob,$args);	1328	=item cf::register_command $name => \&callback($ob,$args);
…		…
888	push @{ $COMMAND{$name} }, [$caller, $cb];	1341	push @{ $COMMAND{$name} }, [$caller, $cb];
889	}	1342	}
890		1343
891	=item cf::register_extcmd $name => \&callback($pl,$packet);	1344	=item cf::register_extcmd $name => \&callback($pl,$packet);
892		1345
893	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.
894		1351
895	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
896	called.	1353	called.
897		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
898	=cut	1366	=cut
899		1367
900	sub register_extcmd {	1368	sub register_extcmd {
901	my ($name, $cb) = @_;	1369	my ($name, $cb) = @_;
902		1370
903	my $caller = caller;
904	#warn "registering extcmd '$name' to '$caller'";
905
906	$EXTCMD{$name} = [$cb, $caller];	1371	$EXTCMD{$name} = $cb;
907	}	1372	}
		1373
		1374	sub register_exticmd {
		1375	my ($name, $cb) = @_;
		1376
		1377	$EXTICMD{$name} = $cb;
		1378	}
		1379
		1380	use File::Glob ();
908		1381
909	cf::player->attach (	1382	cf::player->attach (
910	on_command => sub {	1383	on_unknown_command => sub {
911	my ($pl, $name, $params) = @_;	1384	my ($pl, $name, $params) = @_;
912		1385
913	my $cb = $COMMAND{$name}	1386	my $cb = $COMMAND{$name}
914	or return;	1387	or return;
915		1388
…		…
920	cf::override;	1393	cf::override;
921	},	1394	},
922	on_extcmd => sub {	1395	on_extcmd => sub {
923	my ($pl, $buf) = @_;	1396	my ($pl, $buf) = @_;
924		1397
925	my $msg = eval { from_json $buf };	1398	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
926		1399
927	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
928	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1408	if (my $cb = $EXTCMD{$type}) {
929	if (my %reply = $cb->[0]->($pl, $msg)) {	1409	@reply = $cb->($pl, @payload);
930	$pl->ext_reply ($msg->{msgid}, %reply);
931	}
932	}	1410	}
		1411
		1412	$pl->ext_reply ($reply, @reply)
		1413	if $reply;
		1414
933	} else {	1415	} else {
934	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1416	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
935	}	1417	}
936		1418
937	cf::override;	1419	cf::override;
938	},	1420	},
939	);	1421	);
940		1422
941	sub register {	1423	# "readahead" all extensions
942	my ($base, $pkg) = @_;
943
944	#TODO
945	}
946
947	sub load_extension {	1424	sub cache_extensions {
948	my ($path) = @_;	1425	my $grp = IO::AIO::aio_group;
949		1426
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1427	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
951	my $base = $1;	1428	for (grep /\.ext$/, @{$_[0]}) {
952	my $pkg = $1;	1429	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955
956	warn "loading '$path' into '$pkg'\n";
957
958	open my $fh, "<:utf8", $path
959	or die "$path: $!";
960
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	eval $source
968	or die $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970
971	push @exts, $pkg;
972	$ext_pkg{$base} = $pkg;
973
974	# no strict 'refs';
975	# @{"$pkg\::ISA"} = ext::;
976
977	register $base, $pkg;
978	}
979
980	sub unload_extension {
981	my ($pkg) = @_;
982
983	warn "removing extension $pkg\n";
984
985	# remove hooks
986	#TODO
987	# for my $idx (0 .. $#PLUGIN_EVENT) {
988	# delete $hook[$idx]{$pkg};
989	# }
990
991	# remove commands
992	for my $name (keys %COMMAND) {
993	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
994
995	if (@cb) {
996	$COMMAND{$name} = \@cb;
997	} else {
998	delete $COMMAND{$name};
999	}	1430	}
1000	}	1431	};
1001		1432
1002	# remove extcmds	1433	$grp
1003	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1004	delete $EXTCMD{$name};
1005	}
1006
1007	if (my $cb = $pkg->can ("unload")) {
1008	eval {
1009	$cb->($pkg);
1010	1
1011	} or warn "$pkg unloaded, but with errors: $@";
1012	}
1013
1014	Symbol::delete_package $pkg;
1015	}	1434	}
1016		1435
1017	sub load_extensions {	1436	sub load_extensions {
		1437	info "loading extensions...";
		1438
		1439	cf::sync_job {
		1440	my %todo;
		1441
1018	for my $ext (<$LIBDIR/*.ext>) {	1442	for my $path (<$LIBDIR/*.ext>) {
1019	next unless -r $ext;	1443	next unless -r $path;
1020	eval {	1444
1021	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	}
1022	1	1508	}
1023	} 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	}
1024	}	1519	};
1025	}	1520	}
1026		1521
1027	#############################################################################	1522	#############################################################################
1028	# load/save/clean perl data associated with a map
1029		1523
1030	*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($) {
1031	my ($map) = @_;	1578	my ($login) = @_;
1032		1579
1033	my $path = $map->tmpname;	1580	$cf::PLAYER{$login}
1034	defined $path or return;	1581	or !aio_stat path $login
1035
1036	unlink "$path.pst";
1037	};
1038
1039	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1040
1041	#############################################################################
1042	# load/save perl data associated with player->ob objects
1043
1044	sub all_objects(@) {
1045	@_, map all_objects ($_->inv), @_
1046	}	1582	}
1047		1583
1048	# 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
1049	cf::player->attach (	1611	cf::player->attach (
1050	on_load => sub {	1612	on_load => sub {
1051	my ($pl, $path) = @_;	1613	my ($pl, $path) = @_;
1052		1614
1053	for my $o (all_objects $pl->ob) {	1615	# restore slots saved in save, below
1054	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1616	my $slots = delete $pl->{_slots};
1055	$o->set_ob_key_value ("_perl_data");
1056		1617
1057	%$o = %{ Storable::thaw pack "H*", $value };	1618	$pl->ob->current_weapon ($slots->[0]);
1058	}	1619	$pl->combat_ob ($slots->[1]);
1059	}	1620	$pl->ranged_ob ($slots->[2]);
1060	},	1621	},
1061	);	1622	);
1062		1623
1063	#############################################################################	1624	sub save($) {
		1625	my ($pl) = @_;
1064		1626
1065	=head2 CORE EXTENSIONS	1627	return if $pl->{deny_save};
1066		1628
1067	Functions and methods that extend core crossfire objects.	1629	my $path = path $pl;
		1630	my $guard = cf::lock_acquire "user_save:$path";
1068		1631
1069	=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($$@) {
		1805	my ($self, $type, @msg) = @_;
		1806
		1807	$self->ns->ext_msg ($type, @msg);
		1808	}
		1809
		1810	=head3 cf::region
1070		1811
1071	=over 4	1812	=over 4
1072		1813
1073	=item cf::player::exists $login
1074
1075	Returns true when the given account exists.
1076
1077	=cut	1814	=cut
1078		1815
1079	sub cf::player::exists($) {	1816	package cf::region;
1080	cf::player::find $_[0]
1081	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1082	}
1083		1817
1084	=item $player->ext_reply ($msgid, $msgtype, %msg)	1818	=item cf::region::find_by_path $path
1085		1819
1086	Sends an ext reply to the player.	1820	Tries to decuce the likely region for a map knowing only its path.
1087		1821
1088	=cut	1822	=cut
1089		1823
1090	sub cf::player::ext_reply($$$%) {	1824	sub find_by_path($) {
1091	my ($self, $id, %msg) = @_;	1825	my ($path) = @_;
1092		1826
1093	$msg{msgid} = $id;	1827	$path =~ s/^~[^\/]*//; # skip ~login
1094		1828
1095	$self->send ("ext " . to_json \%msg);	1829	my ($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
1096	}	1839	}
1097		1840
1098	=back	1841	=back
1099
1100		1842
1101	=head3 cf::map	1843	=head3 cf::map
1102		1844
1103	=over 4	1845	=over 4
1104		1846
…		…
1107	package cf::map;	1849	package cf::map;
1108		1850
1109	use Fcntl;	1851	use Fcntl;
1110	use Coro::AIO;	1852	use Coro::AIO;
1111		1853
		1854	use overload
		1855	'""' => \&as_string,
		1856	fallback => 1;
		1857
1112	our $MAX_RESET = 3600;	1858	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1859	our $DEFAULT_RESET = 3000;
1114		1860
1115	sub generate_random_map {	1861	sub generate_random_map {
1116	my ($path, $rmp) = @_;	1862	my ($self, $rmp) = @_;
		1863
		1864	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1117		1865
1118	# mit "rum" bekleckern, nicht	1866	# mit "rum" bekleckern, nicht
1119	cf::map::_create_random_map	1867	$self->_create_random_map (
1120	$path,	1868	$rmp, $rmp->{total_map_hp},
1121	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1122	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1123	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1124	$rmp->{exit_on_final_map},
1125	$rmp->{xsize}, $rmp->{ysize},
1126	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1127	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1128	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1129	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1130	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1131	(cf::region::find $rmp->{region})	1869	(cf::region::find $rmp->{region})
		1870	)
1132	}	1871	}
1133		1872
1134	# and all this just because we cannot iterate over	1873	=item cf::map->register ($regex, $prio)
1135	# all maps in C++...
1136	sub change_all_map_light {
1137	my ($change) = @_;
1138		1874
1139	$_->change_map_light ($change)	1875	Register a handler for the map path matching the given regex at the
1140	for grep $_->outdoor, values %cf::MAP;	1876	givne priority (higher is better, built-in handlers have priority 0, the
1141	}	1877	default).
1142		1878
1143	sub try_load_header($) {	1879	=cut
		1880
		1881	sub register {
		1882	my (undef, $regex, $prio) = @_;
		1883	my $pkg = caller;
		1884
		1885	push @{"$pkg\::ISA"}, __PACKAGE__;
		1886
		1887	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1888	}
		1889
		1890	# also paths starting with '/'
		1891	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1892
		1893	sub thawer_merge {
		1894	my ($self, $merge) = @_;
		1895
		1896	# we have to keep some variables in memory intact
		1897	local $self->{path};
		1898	local $self->{load_path};
		1899
		1900	$self->SUPER::thawer_merge ($merge);
		1901	}
		1902
		1903	sub normalise {
1144	my ($path) = @_;	1904	my ($path, $base) = @_;
		1905
		1906	$path = "$path"; # make sure it's a string
		1907
		1908	$path =~ s/\.map$//;
		1909
		1910	# map plan:
		1911	#
		1912	# /! non-realised random map exit (special hack!)
		1913	# {... are special paths that are not being touched
		1914	# ?xxx/... are special absolute paths
		1915	# ?random/... random maps
		1916	# /... normal maps
		1917	# ~user/... per-player map of a specific user
		1918
		1919	$path =~ s/$PATH_SEP/\//go;
		1920
		1921	# treat it as relative path if it starts with
		1922	# something that looks reasonable
		1923	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1924	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1925
		1926	$base =~ s{[^/]+/?$}{};
		1927	$path = "$base/$path";
		1928	}
		1929
		1930	for ($path) {
		1931	redo if s{/\.?/}{/};
		1932	redo if s{/[^/]+/\.\./}{/};
		1933	}
		1934
		1935	$path
		1936	}
		1937
		1938	sub new_from_path {
		1939	my (undef, $path, $base) = @_;
		1940
		1941	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1942
		1943	$path = normalise $path, $base;
		1944
		1945	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1946	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1947	my $self = bless cf::map::new, $pkg;
		1948	$self->{path} = $path; $self->path ($path);
		1949	$self->init; # pass $1 etc.
		1950	return $self;
		1951	}
		1952	}
		1953
		1954	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1955	()
		1956	}
		1957
		1958	sub init {
		1959	my ($self) = @_;
		1960
		1961	$self
		1962	}
		1963
		1964	sub as_string {
		1965	my ($self) = @_;
		1966
		1967	"$self->{path}"
		1968	}
		1969
		1970	# the displayed name, this is a one way mapping
		1971	sub visible_name {
		1972	&as_string
		1973	}
		1974
		1975	# the original (read-only) location
		1976	sub load_path {
		1977	my ($self) = @_;
		1978
		1979	"$MAPDIR/$self->{path}.map"
		1980	}
		1981
		1982	# the temporary/swap location
		1983	sub save_path {
		1984	my ($self) = @_;
		1985
		1986	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1987	"$TMPDIR/$path.map"
		1988	}
		1989
		1990	# the unique path, undef == no special unique path
		1991	sub uniq_path {
		1992	my ($self) = @_;
		1993
		1994	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1995	"$UNIQUEDIR/$path"
		1996	}
		1997
		1998	sub decay_objects {
		1999	my ($self) = @_;
		2000
		2001	return if $self->{deny_reset};
		2002
		2003	$self->do_decay_objects;
		2004	}
		2005
		2006	sub unlink_save {
		2007	my ($self) = @_;
		2008
		2009	utf8::encode (my $save = $self->save_path);
		2010	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2011	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2012	}
		2013
		2014	sub load_header_from($) {
		2015	my ($self, $path) = @_;
1145		2016
1146	utf8::encode $path;	2017	utf8::encode $path;
1147	aio_open $path, O_RDONLY, 0	2018	my $f = new_from_file cf::object::thawer $path
1148	or return;	2019	or return;
1149		2020
1150	my $map = cf::map::new	2021	$self->_load_header ($f)
1151	or return;	2022	or return;
1152		2023
1153	# for better error messages only, will be overwritten	2024	local $MAP_LOADING{$self->{path}} = $self;
1154	$map->path ($path);	2025	$f->resolve_delayed_derefs;
1155		2026
1156	$map->load_header ($path)	2027	$self->{load_path} = $path;
		2028
		2029	1
		2030	}
		2031
		2032	sub load_header_orig {
		2033	my ($self) = @_;
		2034
		2035	$self->load_header_from ($self->load_path)
		2036	}
		2037
		2038	sub load_header_temp {
		2039	my ($self) = @_;
		2040
		2041	$self->load_header_from ($self->save_path)
		2042	}
		2043
		2044	sub prepare_temp {
		2045	my ($self) = @_;
		2046
		2047	$self->last_access ((delete $self->{last_access})
		2048	|| $cf::RUNTIME); #d#
		2049	# safety
		2050	$self->{instantiate_time} = $cf::RUNTIME
		2051	if $self->{instantiate_time} > $cf::RUNTIME;
		2052	}
		2053
		2054	sub prepare_orig {
		2055	my ($self) = @_;
		2056
		2057	$self->{load_original} = 1;
		2058	$self->{instantiate_time} = $cf::RUNTIME;
		2059	$self->last_access ($cf::RUNTIME);
		2060	$self->instantiate;
		2061	}
		2062
		2063	sub load_header {
		2064	my ($self) = @_;
		2065
		2066	if ($self->load_header_temp) {
		2067	$self->prepare_temp;
		2068	} else {
		2069	$self->load_header_orig
1157	or return;	2070	or return;
		2071	$self->prepare_orig;
		2072	}
1158		2073
1159	$map->{load_path} = $path;	2074	$self->{deny_reset} = 1
		2075	if $self->no_reset;
1160		2076
1161	$map	2077	$self->default_region (cf::region::find_by_path $self->{path})
		2078	unless $self->default_region;
		2079
		2080	1
1162	}	2081	}
1163		2082
1164	sub find;	2083	sub find;
1165	sub find {	2084	sub find {
1166	my ($path, $origin) = @_;	2085	my ($path, $origin) = @_;
1167		2086
1168	#warn "find<$path,$origin>\n";#d#	2087	cf::cede_to_tick;
1169		2088
1170	$path = new cf::path $path, $origin && $origin->path;	2089	$path = normalise $path, $origin && $origin->path;
1171	my $key = $path->as_string;
1172		2090
1173	cf::lock_wait "map_find:$key";	2091	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1174
1175	$cf::MAP{$key} || do {
1176	my $guard = cf::lock_acquire "map_find:$key";	2092	my $guard2 = cf::lock_acquire "map_find:$path";
1177		2093
1178	# do it the slow way	2094	$cf::MAP{$path} || do {
1179	my $map = try_load_header $path->save_path;	2095	my $map = new_from_path cf::map $path
1180
1181	Coro::cede;
1182
1183	if ($map) {
1184	$map->last_access ((delete $map->{last_access})
1185	|| $cf::RUNTIME); #d#
1186	# safety
1187	$map->{instantiate_time} = $cf::RUNTIME
1188	if $map->{instantiate_time} > $cf::RUNTIME;
1189	} else {
1190	if (my $rmp = $path->random_map_params) {
1191	$map = generate_random_map $key, $rmp;
1192	} else {
1193	$map = try_load_header $path->load_path;
1194	}
1195
1196	$map or return;	2096	or return;
1197		2097
1198	$map->{load_original} = 1;
1199	$map->{instantiate_time} = $cf::RUNTIME;
1200	$map->last_access ($cf::RUNTIME);
1201	$map->instantiate;
1202
1203	# per-player maps become, after loading, normal maps
1204	$map->per_player (0) if $path->{user_rel};
1205	}
1206
1207	$map->path ($key);
1208	$map->{path} = $path;
1209	$map->{last_save} = $cf::RUNTIME;	2098	$map->{last_save} = $cf::RUNTIME;
1210		2099
1211	Coro::cede;	2100	$map->load_header
		2101	or return;
1212		2102
1213	if ($map->should_reset) {	2103	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2104	# doing this can freeze the server in a sync job, obviously
		2105	#$cf::WAIT_FOR_TICK->wait;
		2106	undef $guard2;
		2107	undef $guard1;
1214	$map->reset;	2108	$map->reset;
1215	undef $guard;
1216	$map = find $path	2109	return find $path;
1217	or return;
1218	}	2110	}
1219		2111
1220	$cf::MAP{$key} = $map	2112	$cf::MAP{$path} = $map
1221	}	2113	}
1222	}	2114	}
		2115
		2116	sub pre_load { }
		2117	#sub post_load { } # XS
1223		2118
1224	sub load {	2119	sub load {
1225	my ($self) = @_;	2120	my ($self) = @_;
1226		2121
		2122	local $self->{deny_reset} = 1; # loading can take a long time
		2123
1227	my $path = $self->{path};	2124	my $path = $self->{path};
		2125
		2126	{
1228	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2127	my $guard = cf::lock_acquire "map_data:$path";
1229		2128
		2129	return unless $self->valid;
1230	return if $self->in_memory != cf::MAP_SWAPPED;	2130	return unless $self->in_memory == cf::MAP_SWAPPED;
1231		2131
1232	$self->in_memory (cf::MAP_LOADING);	2132	$self->in_memory (cf::MAP_LOADING);
1233		2133
1234	$self->alloc;	2134	$self->alloc;
1235	$self->load_objects ($self->{load_path}, 1)	2135
		2136	$self->pre_load;
		2137	cf::cede_to_tick;
		2138
		2139	my $f = new_from_file cf::object::thawer $self->{load_path};
		2140	$f->skip_block;
		2141	$self->_load_objects ($f)
1236	or return;	2142	or return;
1237		2143
1238	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2144	$self->post_load_original
1239	if delete $self->{load_original};	2145	if delete $self->{load_original};
1240		2146
1241	if (my $uniq = $path->uniq_path) {	2147	if (my $uniq = $self->uniq_path) {
1242	utf8::encode $uniq;	2148	utf8::encode $uniq;
1243	if (aio_open $uniq, O_RDONLY, 0) {	2149	unless (aio_stat $uniq) {
		2150	if (my $f = new_from_file cf::object::thawer $uniq) {
1244	$self->clear_unique_items;	2151	$self->clear_unique_items;
1245	$self->load_objects ($uniq, 0);	2152	$self->_load_objects ($f);
		2153	$f->resolve_delayed_derefs;
		2154	}
1246	}	2155	}
1247	}	2156	}
1248		2157
1249	Coro::cede;	2158	$f->resolve_delayed_derefs;
1250		2159
		2160	cf::cede_to_tick;
1251	# now do the right thing for maps	2161	# now do the right thing for maps
1252	$self->link_multipart_objects;	2162	$self->link_multipart_objects;
1253
1254	if ($self->{path}->is_style_map) {
1255	$self->{deny_save} = 1;
1256	$self->{deny_reset} = 1;
1257	} else {
1258	$self->fix_auto_apply;
1259	$self->decay_objects;
1260	$self->update_buttons;
1261	$self->set_darkness_map;
1262	$self->difficulty ($self->estimate_difficulty)	2163	$self->difficulty ($self->estimate_difficulty)
1263	unless $self->difficulty;	2164	unless $self->difficulty;
		2165	cf::cede_to_tick;
		2166
		2167	unless ($self->{deny_activate}) {
		2168	$self->decay_objects;
		2169	$self->fix_auto_apply;
		2170	$self->update_buttons;
		2171	cf::cede_to_tick;
1264	$self->activate;	2172	$self->activate;
1265	}	2173	}
1266		2174
1267	Coro::cede;	2175	$self->{last_save} = $cf::RUNTIME;
		2176	$self->last_access ($cf::RUNTIME);
1268		2177
1269	$self->in_memory (cf::MAP_IN_MEMORY);	2178	$self->in_memory (cf::MAP_ACTIVE);
		2179	}
		2180
		2181	$self->post_load;
		2182
		2183	1
		2184	}
		2185
		2186	# customize the map for a given player, i.e.
		2187	# return the _real_ map. used by e.g. per-player
		2188	# maps to change the path to ~playername/mappath
		2189	sub customise_for {
		2190	my ($self, $ob) = @_;
		2191
		2192	return find "~" . $ob->name . "/" . $self->{path}
		2193	if $self->per_player;
		2194
		2195	# return find "?party/" . $ob->name . "/" . $self->{path}
		2196	# if $self->per_party;
		2197
		2198	$self
		2199	}
		2200
		2201	# find and load all maps in the 3x3 area around a map
		2202	sub load_neighbours {
		2203	my ($map) = @_;
		2204
		2205	my @neigh; # diagonal neighbours
		2206
		2207	for (0 .. 3) {
		2208	my $neigh = $map->tile_path ($_)
		2209	or next;
		2210	$neigh = find $neigh, $map
		2211	or next;
		2212	$neigh->load;
		2213
		2214	# now find the diagonal neighbours
		2215	push @neigh,
		2216	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2217	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2218	}
		2219
		2220	for (grep defined $_->[0], @neigh) {
		2221	my ($path, $origin) = @$_;
		2222	my $neigh = find $path, $origin
		2223	or next;
		2224	$neigh->load;
		2225	}
1270	}	2226	}
1271		2227
1272	sub find_sync {	2228	sub find_sync {
1273	my ($path, $origin) = @_;	2229	my ($path, $origin) = @_;
1274		2230
1275	cf::sync_job {	2231	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
1276	my $map = cf::map::find $path, $origin;	2232	if $Coro::current == $Coro::main;
1277	$map	2233
1278	}	2234	find $path, $origin
1279	}	2235	}
1280		2236
1281	sub do_load_sync {	2237	sub do_load_sync {
1282	my ($map) = @_;	2238	my ($map) = @_;
1283		2239
1284	cf::sync_job { $map->load };	2240	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2241	if $Coro::current == $Coro::main;
		2242
		2243	$map->load;
		2244	}
		2245
		2246	our %MAP_PREFETCH;
		2247	our $MAP_PREFETCHER = undef;
		2248
		2249	sub find_async {
		2250	my ($path, $origin, $load) = @_;
		2251
		2252	$path = normalise $path, $origin && $origin->{path};
		2253
		2254	if (my $map = $cf::MAP{$path}) {
		2255	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2256	}
		2257
		2258	$MAP_PREFETCH{$path} |= $load;
		2259
		2260	$MAP_PREFETCHER ||= cf::async {
		2261	$Coro::current->{desc} = "map prefetcher";
		2262
		2263	while (%MAP_PREFETCH) {
		2264	while (my ($k, $v) = each %MAP_PREFETCH) {
		2265	if (my $map = find $k) {
		2266	$map->load if $v;
		2267	}
		2268
		2269	delete $MAP_PREFETCH{$k};
		2270	}
		2271	}
		2272	undef $MAP_PREFETCHER;
		2273	};
		2274	$MAP_PREFETCHER->prio (6);
		2275
		2276	()
		2277	}
		2278
		2279	# common code, used by both ->save and ->swapout
		2280	sub _save {
		2281	my ($self) = @_;
		2282
		2283	$self->{last_save} = $cf::RUNTIME;
		2284
		2285	return unless $self->dirty;
		2286
		2287	my $save = $self->save_path; utf8::encode $save;
		2288	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2289
		2290	$self->{load_path} = $save;
		2291
		2292	return if $self->{deny_save};
		2293
		2294	local $self->{last_access} = $self->last_access;#d#
		2295
		2296	cf::async {
		2297	$Coro::current->{desc} = "map player save";
		2298	$_->contr->save for $self->players;
		2299	};
		2300
		2301	cf::get_slot 0.02;
		2302
		2303	if ($uniq) {
		2304	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2305	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2306	} else {
		2307	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2308	}
1285	}	2309	}
1286		2310
1287	sub save {	2311	sub save {
1288	my ($self) = @_;	2312	my ($self) = @_;
1289		2313
1290	my $lock = cf::lock_acquire "map_data:" . $self->path;	2314	my $lock = cf::lock_acquire "map_data:$self->{path}";
1291		2315
1292	$self->{last_save} = $cf::RUNTIME;	2316	$self->_save;
1293
1294	return unless $self->dirty;
1295
1296	my $save = $self->{path}->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1298
1299	$self->{load_path} = $save;
1300
1301	return if $self->{deny_save};
1302
1303	local $self->{last_access} = $self->last_access;#d#
1304
1305	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}
1311	}	2317	}
1312		2318
1313	sub swap_out {	2319	sub swap_out {
1314	my ($self) = @_;	2320	my ($self) = @_;
1315		2321
1316	# save first because save cedes
1317	$self->save;
1318
1319	my $lock = cf::lock_acquire "map_data:" . $self->path;	2322	my $lock = cf::lock_acquire "map_data:$self->{path}";
1320		2323
		2324	return if $self->in_memory != cf::MAP_ACTIVE;
		2325	return if $self->{deny_save};
1321	return if $self->players;	2326	return if $self->players;
1322	return if $self->in_memory != cf::MAP_IN_MEMORY;
1323	return if $self->{deny_save};
1324		2327
		2328	# first deactivate the map and "unlink" it from the core
		2329	$self->deactivate;
		2330	$_->clear_links_to ($self) for values %cf::MAP;
		2331	$self->in_memory (cf::MAP_SWAPPED);
		2332
		2333	# then atomically save
		2334	$self->_save;
		2335
		2336	# then free the map
1325	$self->clear;	2337	$self->clear;
1326	$self->in_memory (cf::MAP_SWAPPED);
1327	}	2338	}
1328		2339
1329	sub reset_at {	2340	sub reset_at {
1330	my ($self) = @_;	2341	my ($self) = @_;
1331		2342
1332	# TODO: safety, remove and allow resettable per-player maps	2343	# TODO: safety, remove and allow resettable per-player maps
1333	return 1e99 if $self->{path}{user_rel};
1334	return 1e99 if $self->{deny_reset};	2344	return 1e99 if $self->{deny_reset};
1335		2345
1336	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2346	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1337	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2347	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1338		2348
…		…
1343	my ($self) = @_;	2353	my ($self) = @_;
1344		2354
1345	$self->reset_at <= $cf::RUNTIME	2355	$self->reset_at <= $cf::RUNTIME
1346	}	2356	}
1347		2357
1348	sub unlink_save {
1349	my ($self) = @_;
1350
1351	utf8::encode (my $save = $self->{path}->save_path);
1352	aioreq_pri 3; IO::AIO::aio_unlink $save;
1353	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1354	}
1355
1356	sub rename {
1357	my ($self, $new_path) = @_;
1358
1359	$self->unlink_save;
1360
1361	delete $cf::MAP{$self->path};
1362	$self->{path} = new cf::path $new_path;
1363	$self->path ($self->{path}->as_string);
1364	$cf::MAP{$self->path} = $self;
1365
1366	$self->save;
1367	}
1368
1369	sub reset {	2358	sub reset {
1370	my ($self) = @_;	2359	my ($self) = @_;
1371		2360
1372	my $lock = cf::lock_acquire "map_data:" . $self->path;	2361	my $lock = cf::lock_acquire "map_data:$self->{path}";
1373		2362
1374	return if $self->players;	2363	return if $self->players;
1375	return if $self->{path}{user_rel};#d#
1376		2364
1377	warn "resetting map ", $self->path;#d#	2365	cf::trace "resetting map ", $self->path, "\n";
		2366
		2367	$self->in_memory (cf::MAP_SWAPPED);
		2368
		2369	# need to save uniques path
		2370	unless ($self->{deny_save}) {
		2371	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2372
		2373	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2374	if $uniq;
		2375	}
1378		2376
1379	delete $cf::MAP{$self->path};	2377	delete $cf::MAP{$self->path};
1380		2378
		2379	$self->deactivate;
1381	$_->clear_links_to ($self) for values %cf::MAP;	2380	$_->clear_links_to ($self) for values %cf::MAP;
		2381	$self->clear;
1382		2382
1383	$self->unlink_save;	2383	$self->unlink_save;
1384	$self->destroy;	2384	$self->destroy;
1385	}	2385	}
1386		2386
1387	my $nuke_counter = "aaaa";	2387	my $nuke_counter = "aaaa";
1388		2388
1389	sub nuke {	2389	sub nuke {
1390	my ($self) = @_;	2390	my ($self) = @_;
1391		2391
		2392	{
		2393	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2394
		2395	delete $cf::MAP{$self->path};
		2396
		2397	$self->unlink_save;
		2398
		2399	bless $self, "cf::map::wrap";
		2400	delete $self->{deny_reset};
1392	$self->{deny_save} = 1;	2401	$self->{deny_save} = 1;
1393	$self->reset_timeout (1);	2402	$self->reset_timeout (1);
1394	$self->rename ("{nuke}/" . ($nuke_counter++));	2403	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2404
		2405	$cf::MAP{$self->path} = $self;
		2406	}
		2407
1395	$self->reset; # polite request, might not happen	2408	$self->reset; # polite request, might not happen
1396	}	2409	}
1397		2410
1398	sub customise_for {	2411	=item $maps = cf::map::tmp_maps
1399	my ($map, $ob) = @_;
1400		2412
1401	if ($map->per_player) {	2413	Returns an arrayref with all map paths of currently instantiated and saved
1402	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2414	maps. May block.
		2415
		2416	=cut
		2417
		2418	sub tmp_maps() {
1403	}	2419	[
1404		2420	map {
1405	$map	2421	utf8::decode $_;
		2422	/\.map$/
		2423	? normalise $_
		2424	: ()
		2425	} @{ aio_readdir $TMPDIR or [] }
		2426	]
1406	}	2427	}
1407		2428
1408	sub emergency_save {	2429	=item $maps = cf::map::random_maps
1409	my $freeze_guard = cf::freeze_mainloop;
1410		2430
1411	warn "enter emergency map save\n";	2431	Returns an arrayref with all map paths of currently instantiated and saved
		2432	random maps. May block.
1412		2433
1413	cf::sync_job {	2434	=cut
1414	warn "begin emergency map save\n";	2435
1415	$_->save for values %cf::MAP;	2436	sub random_maps() {
		2437	[
		2438	map {
		2439	utf8::decode $_;
		2440	/\.map$/
		2441	? normalise "?random/$_"
		2442	: ()
		2443	} @{ aio_readdir $RANDOMDIR or [] }
		2444	]
		2445	}
		2446
		2447	=item cf::map::unique_maps
		2448
		2449	Returns an arrayref of paths of all shared maps that have
		2450	instantiated unique items. May block.
		2451
		2452	=cut
		2453
		2454	sub unique_maps() {
		2455	[
		2456	map {
		2457	utf8::decode $_;
		2458	s/\.map$//; # TODO future compatibility hack
		2459	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2460	? ()
		2461	: normalise $_
		2462	} @{ aio_readdir $UNIQUEDIR or [] }
		2463	]
		2464	}
		2465
		2466	=item cf::map::static_maps
		2467
		2468	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2469	file in the shared directory excluding F</styles> and F</editor>). May
		2470	block.
		2471
		2472	=cut
		2473
		2474	sub static_maps() {
		2475	my @dirs = "";
		2476	my @maps;
		2477
		2478	while (@dirs) {
		2479	my $dir = shift @dirs;
		2480
		2481	next if $dir eq "/styles" || $dir eq "/editor";
		2482
		2483	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2484	or return;
		2485
		2486	for (@$files) {
		2487	s/\.map$// or next;
		2488	utf8::decode $_;
		2489	push @maps, "$dir/$_";
		2490	}
		2491
		2492	push @dirs, map "$dir/$_", @$dirs;
1416	};	2493	}
1417		2494
1418	warn "end emergency map save\n";	2495	\@maps
		2496	}
		2497
		2498	=back
		2499
		2500	=head3 cf::object
		2501
		2502	=cut
		2503
		2504	package cf::object;
		2505
		2506	=over 4
		2507
		2508	=item $ob->inv_recursive
		2509
		2510	Returns the inventory of the object I<and> their inventories, recursively,
		2511	but I<not> the object itself.
		2512
		2513	=cut
		2514
		2515	sub inv_recursive_;
		2516	sub inv_recursive_ {
		2517	map { $_, inv_recursive_ $_->inv } @_
		2518	}
		2519
		2520	sub inv_recursive {
		2521	inv_recursive_ inv $_[0]
		2522	}
		2523
		2524	=item $ref = $ob->ref
		2525
		2526	Creates and returns a persistent reference to an object that can be stored as a string.
		2527
		2528	=item $ob = cf::object::deref ($refstring)
		2529
		2530	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2531	even if the object actually exists. May block.
		2532
		2533	=cut
		2534
		2535	sub deref {
		2536	my ($ref) = @_;
		2537
		2538	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2539	my ($uuid, $name) = ($1, $2);
		2540	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2541	or return;
		2542	$pl->ob->uuid eq $uuid
		2543	or return;
		2544
		2545	$pl->ob
		2546	} else {
		2547	warn "$ref: cannot resolve object reference\n";
		2548	undef
		2549	}
1419	}	2550	}
1420		2551
1421	package cf;	2552	package cf;
1422		2553
1423	=back	2554	=back
1424
1425		2555
1426	=head3 cf::object::player	2556	=head3 cf::object::player
1427		2557
1428	=over 4	2558	=over 4
1429		2559
…		…
1432	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2562	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1433	can be C<undef>. Does the right thing when the player is currently in a	2563	can be C<undef>. Does the right thing when the player is currently in a
1434	dialogue with the given NPC character.	2564	dialogue with the given NPC character.
1435		2565
1436	=cut	2566	=cut
		2567
		2568	our $SAY_CHANNEL = {
		2569	id => "say",
		2570	title => "Map",
		2571	reply => "say ",
		2572	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2573	};
		2574
		2575	our $CHAT_CHANNEL = {
		2576	id => "chat",
		2577	title => "Chat",
		2578	reply => "chat ",
		2579	tooltip => "Player chat and shouts, global to the server.",
		2580	};
1437		2581
1438	# rough implementation of a future "reply" method that works	2582	# rough implementation of a future "reply" method that works
1439	# with dialog boxes.	2583	# with dialog boxes.
1440	#TODO: the first argument must go, split into a $npc->reply_to ( method	2584	#TODO: the first argument must go, split into a $npc->reply_to ( method
1441	sub cf::object::player::reply($$$;$) {	2585	sub cf::object::player::reply($$$;$) {
…		…
1443		2587
1444	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2588	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1445		2589
1446	if ($self->{record_replies}) {	2590	if ($self->{record_replies}) {
1447	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2591	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2592
1448	} else {	2593	} else {
		2594	my $pl = $self->contr;
		2595
		2596	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2597	my $dialog = $pl->{npc_dialog};
		2598	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2599
		2600	} else {
1449	$msg = $npc->name . " says: $msg" if $npc;	2601	$msg = $npc->name . " says: $msg" if $npc;
1450	$self->message ($msg, $flags);	2602	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2603	}
1451	}	2604	}
		2605	}
		2606
		2607	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2608
		2609	=cut
		2610
		2611	sub cf::object::send_msg {
		2612	my $pl = shift->contr
		2613	or return;
		2614	$pl->send_msg (@_);
1452	}	2615	}
1453		2616
1454	=item $player_object->may ("access")	2617	=item $player_object->may ("access")
1455		2618
1456	Returns wether the given player is authorized to access resource "access"	2619	Returns wether the given player is authorized to access resource "access"
…		…
1469		2632
1470	=item $player_object->enter_link	2633	=item $player_object->enter_link
1471		2634
1472	Freezes the player and moves him/her to a special map (C<{link}>).	2635	Freezes the player and moves him/her to a special map (C<{link}>).
1473		2636
1474	The player should be reaosnably safe there for short amounts of time. You	2637	The player should be reasonably safe there for short amounts of time (e.g.
1475	I<MUST> call C<leave_link> as soon as possible, though.	2638	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2639	though, as the player cannot control the character while it is on the link
		2640	map.
		2641
		2642	Will never block.
1476		2643
1477	=item $player_object->leave_link ($map, $x, $y)	2644	=item $player_object->leave_link ($map, $x, $y)
1478		2645
1479	Moves the player out of the specila link map onto the given map. If the	2646	Moves the player out of the special C<{link}> map onto the specified
1480	map is not valid (or omitted), the player will be moved back to the	2647	map. If the map is not valid (or omitted), the player will be moved back
1481	location he/she was before the call to C<enter_link>, or, if that fails,	2648	to the location he/she was before the call to C<enter_link>, or, if that
1482	to the emergency map position.	2649	fails, to the emergency map position.
1483		2650
1484	Might block.	2651	Might block.
1485		2652
1486	=cut	2653	=cut
		2654
		2655	sub link_map {
		2656	unless ($LINK_MAP) {
		2657	$LINK_MAP = cf::map::find "{link}"
		2658	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2659	$LINK_MAP->load;
		2660	}
		2661
		2662	$LINK_MAP
		2663	}
1487		2664
1488	sub cf::object::player::enter_link {	2665	sub cf::object::player::enter_link {
1489	my ($self) = @_;	2666	my ($self) = @_;
1490		2667
1491	$self->deactivate_recursive;	2668	$self->deactivate_recursive;
1492		2669
1493	return if $self->map == $LINK_MAP;	2670	++$self->{_link_recursion};
		2671
		2672	return if UNIVERSAL::isa $self->map, "ext::map_link";
1494		2673
1495	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2674	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1496	if $self->map;	2675	if $self->map && $self->map->{path} ne "{link}";
1497		2676
1498	$self->enter_map ($LINK_MAP, 20, 20);	2677	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1499	}	2678	}
1500		2679
1501	sub cf::object::player::leave_link {	2680	sub cf::object::player::leave_link {
1502	my ($self, $map, $x, $y) = @_;	2681	my ($self, $map, $x, $y) = @_;
		2682
		2683	return unless $self->contr->active;
1503		2684
1504	my $link_pos = delete $self->{_link_pos};	2685	my $link_pos = delete $self->{_link_pos};
1505		2686
1506	unless ($map) {	2687	unless ($map) {
1507	# restore original map position	2688	# restore original map position
…		…
1518	($x, $y) = (-1, -1)	2699	($x, $y) = (-1, -1)
1519	unless (defined $x) && (defined $y);	2700	unless (defined $x) && (defined $y);
1520		2701
1521	# use -1 or undef as default coordinates, not 0, 0	2702	# use -1 or undef as default coordinates, not 0, 0
1522	($x, $y) = ($map->enter_x, $map->enter_y)	2703	($x, $y) = ($map->enter_x, $map->enter_y)
1523	if $x <=0 && $y <= 0;	2704	if $x <= 0 && $y <= 0;
1524		2705
1525	$map->load;	2706	$map->load;
		2707	$map->load_neighbours;
1526		2708
		2709	return unless $self->contr->active;
		2710
		2711	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2712	if ($self->enter_map ($map, $x, $y)) {
		2713	# entering was successful
		2714	delete $self->{_link_recursion};
		2715	# only activate afterwards, to support waiting in hooks
1527	$self->activate_recursive;	2716	$self->activate_recursive;
1528	$self->enter_map ($map, $x, $y);
1529	}
1530
1531	cf::player->attach (
1532	on_logout => sub {
1533	my ($pl) = @_;
1534
1535	# abort map switching before logout
1536	if ($pl->ob->{_link_pos}) {
1537	cf::sync_job {
1538	$pl->ob->leave_link
1539	};
1540	}
1541	},	2717	}
1542	on_login => sub {
1543	my ($pl) = @_;
1544		2718
1545	# try to abort aborted map switching on player login :)	2719	}
1546	# should happen only on crashes
1547	if ($pl->ob->{_link_pos}) {
1548		2720
1549	$pl->ob->enter_link;	2721	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1550	(Coro::async_pool {
1551	# we need this sleep as the login has a concurrent enter_exit running
1552	# and this sleep increases chances of the player not ending up in scorn
1553	Coro::Timer::sleep 1;
1554	$pl->ob->leave_link;
1555	})->prio (2);
1556	}
1557	},
1558	);
1559		2722
1560	=item $player_object->goto ($path, $x, $y)	2723	Moves the player to the given map-path and coordinates by first freezing
		2724	her, loading and preparing them map, calling the provided $check callback
		2725	that has to return the map if sucecssful, and then unfreezes the player on
		2726	the new (success) or old (failed) map position. In either case, $done will
		2727	be called at the end of this process.
1561		2728
		2729	Note that $check will be called with a potentially non-loaded map, so if
		2730	it needs a loaded map it has to call C<< ->load >>.
		2731
1562	=cut	2732	=cut
		2733
		2734	our $GOTOGEN;
1563		2735
1564	sub cf::object::player::goto {	2736	sub cf::object::player::goto {
1565	my ($self, $path, $x, $y) = @_;	2737	my ($self, $path, $x, $y, $check, $done) = @_;
		2738
		2739	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2740	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2741	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2742	($path, $x, $y) = @$EMERGENCY_POSITION;
		2743	}
		2744
		2745	# do generation counting so two concurrent goto's will be executed in-order
		2746	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1566		2747
1567	$self->enter_link;	2748	$self->enter_link;
1568		2749
1569	(Coro::async_pool {	2750	(async {
1570	$path = new cf::path $path;	2751	$Coro::current->{desc} = "player::goto $path $x $y";
1571		2752
1572	my $map = cf::map::find $path->as_string;	2753	# *tag paths override both path and x|y
		2754	if ($path =~ /^\*(.*)$/) {
		2755	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2756	my $ob = $obs[rand @obs];
		2757
		2758	# see if we actually can go there
		2759	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2760	$ob = $obs[rand @obs];
		2761	} else {
		2762	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2763	}
		2764	# else put us there anyways for now #d#
		2765
		2766	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2767	} else {
		2768	($path, $x, $y) = (undef, undef, undef);
		2769	}
		2770	}
		2771
		2772	my $map = eval {
		2773	my $map = defined $path ? cf::map::find $path : undef;
		2774
		2775	if ($map) {
1573	$map = $map->customise_for ($self) if $map;	2776	$map = $map->customise_for ($self);
1574		2777	$map = $check->($map, $x, $y, $self) if $check && $map;
1575	# warn "entering ", $map->path, " at ($x, $y)\n"	2778	} else {
1576	# if $map;
1577
1578	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2779	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2780	}
1579		2781
		2782	$map
		2783	};
		2784
		2785	if ($@) {
		2786	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2787	LOG llevError | logBacktrace, Carp::longmess $@;
		2788	}
		2789
		2790	if ($gen == $self->{_goto_generation}) {
		2791	delete $self->{_goto_generation};
1580	$self->leave_link ($map, $x, $y);	2792	$self->leave_link ($map, $x, $y);
		2793	}
		2794
		2795	$done->($self) if $done;
1581	})->prio (1);	2796	})->prio (1);
1582	}	2797	}
1583		2798
1584	=item $player_object->enter_exit ($exit_object)	2799	=item $player_object->enter_exit ($exit_object)
1585		2800
…		…
1587		2802
1588	sub parse_random_map_params {	2803	sub parse_random_map_params {
1589	my ($spec) = @_;	2804	my ($spec) = @_;
1590		2805
1591	my $rmp = { # defaults	2806	my $rmp = { # defaults
1592	xsize => 10,	2807	xsize => (cf::rndm 15, 40),
1593	ysize => 10,	2808	ysize => (cf::rndm 15, 40),
		2809	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2810	#layout => string,
1594	};	2811	};
1595		2812
1596	for (split /\n/, $spec) {	2813	for (split /\n/, $spec) {
1597	my ($k, $v) = split /\s+/, $_, 2;	2814	my ($k, $v) = split /\s+/, $_, 2;
1598		2815
…		…
1610	# that depends on the exit object	2827	# that depends on the exit object
1611		2828
1612	my $rmp = parse_random_map_params $exit->msg;	2829	my $rmp = parse_random_map_params $exit->msg;
1613		2830
1614	if ($exit->map) {	2831	if ($exit->map) {
1615	$rmp->{region} = $exit->map->region_name;	2832	$rmp->{region} = $exit->region->name;
1616	$rmp->{origin_map} = $exit->map->path;	2833	$rmp->{origin_map} = $exit->map->path;
1617	$rmp->{origin_x} = $exit->x;	2834	$rmp->{origin_x} = $exit->x;
1618	$rmp->{origin_y} = $exit->y;	2835	$rmp->{origin_y} = $exit->y;
		2836
		2837	$exit->map->touch;
1619	}	2838	}
1620		2839
1621	$rmp->{random_seed} ||= $exit->random_seed;	2840	$rmp->{random_seed} ||= $exit->random_seed;
1622		2841
1623	my $data = cf::to_json $rmp;	2842	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1624	my $md5 = Digest::MD5::md5_hex $data;	2843	my $md5 = Digest::MD5::md5_hex $data;
		2844	my $meta = "$RANDOMDIR/$md5.meta";
1625		2845
1626	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2846	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1627	aio_write $fh, 0, (length $data), $data, 0;	2847	aio_write $fh, 0, (length $data), $data, 0;
		2848	undef $fh;
		2849	aio_rename "$meta~", $meta;
1628		2850
		2851	my $slaying = "?random/$md5";
		2852
		2853	if ($exit->valid) {
1629	$exit->slaying ("?random/$md5");	2854	$exit->slaying ("?random/$md5");
1630	$exit->msg (undef);	2855	$exit->msg (undef);
		2856	}
1631	}	2857	}
1632	}	2858	}
1633		2859
1634	sub cf::object::player::enter_exit {	2860	sub cf::object::player::enter_exit {
1635	my ($self, $exit) = @_;	2861	my ($self, $exit) = @_;
1636		2862
1637	return unless $self->type == cf::PLAYER;	2863	return unless $self->type == cf::PLAYER;
1638		2864
1639	$self->enter_link;	2865	$self->enter_link;
1640		2866
1641	(Coro::async_pool {	2867	(async {
1642	$self->deactivate_recursive; # just to be sure	2868	$Coro::current->{desc} = "enter_exit";
		2869
1643	unless (eval {	2870	unless (eval {
		2871	$self->deactivate_recursive; # just to be sure
		2872
		2873	# random map handling
		2874	{
		2875	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2876
1644	prepare_random_map $exit	2877	prepare_random_map $exit
1645	if $exit->slaying eq "/!";	2878	if $exit->slaying eq "/!";
		2879	}
1646		2880
1647	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2881	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1648	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2882	my $x = $exit->stats->hp;
		2883	my $y = $exit->stats->sp;
1649		2884
		2885	$self->goto ($map, $x, $y);
		2886
		2887	# if exit is damned, update players death & WoR home-position
		2888	$self->contr->savebed ($map, $x, $y)
		2889	if $exit->flag (cf::FLAG_DAMNED);
		2890
1650	1;	2891	1
1651	}) {	2892	}) {
1652	$self->message ("Something went wrong deep within the crossfire server. "	2893	$self->message ("Something went wrong deep within the deliantra server. "
1653	. "I'll try to bring you back to the map you were before. "	2894	. "I'll try to bring you back to the map you were before. "
1654	. "Please report this to the dungeon master",	2895	. "Please report this to the dungeon master!",
1655	cf::NDI_UNIQUE | cf::NDI_RED);	2896	cf::NDI_UNIQUE | cf::NDI_RED);
1656		2897
1657	warn "ERROR in enter_exit: $@";	2898	error "ERROR in enter_exit: $@";
1658	$self->leave_link;	2899	$self->leave_link;
1659	}	2900	}
1660	})->prio (1);	2901	})->prio (1);
1661	}	2902	}
1662		2903
…		…
1673		2914
1674	sub cf::client::send_drawinfo {	2915	sub cf::client::send_drawinfo {
1675	my ($self, $text, $flags) = @_;	2916	my ($self, $text, $flags) = @_;
1676		2917
1677	utf8::encode $text;	2918	utf8::encode $text;
1678	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2919	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1679	}	2920	}
1680		2921
		2922	=item $client->send_big_packet ($pkt)
		2923
		2924	Like C<send_packet>, but tries to compress large packets, and fragments
		2925	them as required.
		2926
		2927	=cut
		2928
		2929	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2930
		2931	sub cf::client::send_big_packet {
		2932	my ($self, $pkt) = @_;
		2933
		2934	# try lzf for large packets
		2935	$pkt = "lzf " . Compress::LZF::compress $pkt
		2936	if 1024 <= length $pkt and $self->{can_lzf};
		2937
		2938	# split very large packets
		2939	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2940	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2941	$pkt = "frag";
		2942	}
		2943
		2944	$self->send_packet ($pkt);
		2945	}
		2946
		2947	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2948
		2949	Send a drawinfo or msg packet to the client, formatting the msg for the
		2950	client if neccessary. C<$type> should be a string identifying the type of
		2951	the message, with C<log> being the default. If C<$color> is negative, suppress
		2952	the message unless the client supports the msg packet.
		2953
		2954	=cut
		2955
		2956	# non-persistent channels (usually the info channel)
		2957	our %CHANNEL = (
		2958	"c/motd" => {
		2959	id => "infobox",
		2960	title => "MOTD",
		2961	reply => undef,
		2962	tooltip => "The message of the day",
		2963	},
		2964	"c/identify" => {
		2965	id => "infobox",
		2966	title => "Identify",
		2967	reply => undef,
		2968	tooltip => "Items recently identified",
		2969	},
		2970	"c/examine" => {
		2971	id => "infobox",
		2972	title => "Examine",
		2973	reply => undef,
		2974	tooltip => "Signs and other items you examined",
		2975	},
		2976	"c/shopinfo" => {
		2977	id => "infobox",
		2978	title => "Shop Info",
		2979	reply => undef,
		2980	tooltip => "What your bargaining skill tells you about the shop",
		2981	},
		2982	"c/book" => {
		2983	id => "infobox",
		2984	title => "Book",
		2985	reply => undef,
		2986	tooltip => "The contents of a note or book",
		2987	},
		2988	"c/lookat" => {
		2989	id => "infobox",
		2990	title => "Look",
		2991	reply => undef,
		2992	tooltip => "What you saw there",
		2993	},
		2994	"c/who" => {
		2995	id => "infobox",
		2996	title => "Players",
		2997	reply => undef,
		2998	tooltip => "Shows players who are currently online",
		2999	},
		3000	"c/body" => {
		3001	id => "infobox",
		3002	title => "Body Parts",
		3003	reply => undef,
		3004	tooltip => "Shows which body parts you posess and are available",
		3005	},
		3006	"c/statistics" => {
		3007	id => "infobox",
		3008	title => "Statistics",
		3009	reply => undef,
		3010	tooltip => "Shows your primary statistics",
		3011	},
		3012	"c/skills" => {
		3013	id => "infobox",
		3014	title => "Skills",
		3015	reply => undef,
		3016	tooltip => "Shows your experience per skill and item power",
		3017	},
		3018	"c/shopitems" => {
		3019	id => "infobox",
		3020	title => "Shop Items",
		3021	reply => undef,
		3022	tooltip => "Shows the items currently for sale in this shop",
		3023	},
		3024	"c/resistances" => {
		3025	id => "infobox",
		3026	title => "Resistances",
		3027	reply => undef,
		3028	tooltip => "Shows your resistances",
		3029	},
		3030	"c/pets" => {
		3031	id => "infobox",
		3032	title => "Pets",
		3033	reply => undef,
		3034	tooltip => "Shows information abotu your pets/a specific pet",
		3035	},
		3036	"c/perceiveself" => {
		3037	id => "infobox",
		3038	title => "Perceive Self",
		3039	reply => undef,
		3040	tooltip => "You gained detailed knowledge about yourself",
		3041	},
		3042	"c/uptime" => {
		3043	id => "infobox",
		3044	title => "Uptime",
		3045	reply => undef,
		3046	tooltip => "How long the server has been running since last restart",
		3047	},
		3048	"c/mapinfo" => {
		3049	id => "infobox",
		3050	title => "Map Info",
		3051	reply => undef,
		3052	tooltip => "Information related to the maps",
		3053	},
		3054	"c/party" => {
		3055	id => "party",
		3056	title => "Party",
		3057	reply => "gsay ",
		3058	tooltip => "Messages and chat related to your party",
		3059	},
		3060	"c/death" => {
		3061	id => "death",
		3062	title => "Death",
		3063	reply => undef,
		3064	tooltip => "Reason for and more info about your most recent death",
		3065	},
		3066	"c/say" => $SAY_CHANNEL,
		3067	"c/chat" => $CHAT_CHANNEL,
		3068	);
		3069
		3070	sub cf::client::send_msg {
		3071	my ($self, $channel, $msg, $color, @extra) = @_;
		3072
		3073	$msg = $self->pl->expand_cfpod ($msg)
		3074	unless $color & cf::NDI_VERBATIM;
		3075
		3076	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3077
		3078	# check predefined channels, for the benefit of C
		3079	if ($CHANNEL{$channel}) {
		3080	$channel = $CHANNEL{$channel};
		3081
		3082	$self->ext_msg (channel_info => $channel);
		3083	$channel = $channel->{id};
		3084
		3085	} elsif (ref $channel) {
		3086	# send meta info to client, if not yet sent
		3087	unless (exists $self->{channel}{$channel->{id}}) {
		3088	$self->{channel}{$channel->{id}} = $channel;
		3089	$self->ext_msg (channel_info => $channel);
		3090	}
		3091
		3092	$channel = $channel->{id};
		3093	}
		3094
		3095	return unless @extra || length $msg;
		3096
		3097	# default colour, mask it out
		3098	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3099	if $color & cf::NDI_DEF;
		3100
		3101	my $pkt = "msg "
		3102	. $self->{json_coder}->encode (
		3103	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3104	);
		3105
		3106	$self->send_big_packet ($pkt);
		3107	}
		3108
		3109	=item $client->ext_msg ($type, @msg)
		3110
		3111	Sends an ext event to the client.
		3112
		3113	=cut
		3114
		3115	sub cf::client::ext_msg($$@) {
		3116	my ($self, $type, @msg) = @_;
		3117
		3118	if ($self->extcmd == 2) {
		3119	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3120	} elsif ($self->extcmd == 1) { # TODO: remove
		3121	push @msg, msgtype => "event_$type";
		3122	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3123	}
		3124	}
		3125
		3126	=item $client->ext_reply ($msgid, @msg)
		3127
		3128	Sends an ext reply to the client.
		3129
		3130	=cut
		3131
		3132	sub cf::client::ext_reply($$@) {
		3133	my ($self, $id, @msg) = @_;
		3134
		3135	if ($self->extcmd == 2) {
		3136	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3137	} elsif ($self->extcmd == 1) {
		3138	#TODO: version 1, remove
		3139	unshift @msg, msgtype => "reply", msgid => $id;
		3140	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3141	}
		3142	}
1681		3143
1682	=item $success = $client->query ($flags, "text", \&cb)	3144	=item $success = $client->query ($flags, "text", \&cb)
1683		3145
1684	Queues a query to the client, calling the given callback with	3146	Queues a query to the client, calling the given callback with
1685	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3147	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1686	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3148	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1687		3149
1688	Queries can fail, so check the return code. Or don't, as queries will become	3150	Queries can fail, so check the return code. Or don't, as queries will
1689	reliable at some point in the future.	3151	become reliable at some point in the future.
1690		3152
1691	=cut	3153	=cut
1692		3154
1693	sub cf::client::query {	3155	sub cf::client::query {
1694	my ($self, $flags, $text, $cb) = @_;	3156	my ($self, $flags, $text, $cb) = @_;
…		…
1702	utf8::encode $text;	3164	utf8::encode $text;
1703	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3165	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1704		3166
1705	$self->send_packet ($self->{query_queue}[0][0])	3167	$self->send_packet ($self->{query_queue}[0][0])
1706	if @{ $self->{query_queue} } == 1;	3168	if @{ $self->{query_queue} } == 1;
		3169
		3170	1
1707	}	3171	}
1708		3172
1709	cf::client->attach (	3173	cf::client->attach (
		3174	on_connect => sub {
		3175	my ($ns) = @_;
		3176
		3177	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3178	},
1710	on_reply => sub {	3179	on_reply => sub {
1711	my ($ns, $msg) = @_;	3180	my ($ns, $msg) = @_;
1712		3181
1713	# this weird shuffling is so that direct followup queries	3182	# this weird shuffling is so that direct followup queries
1714	# get handled first	3183	# get handled first
1715	my $queue = delete $ns->{query_queue}	3184	my $queue = delete $ns->{query_queue}
1716	or return; # be conservative, not sure how that can happen, but we saw a crash here	3185	or return; # be conservative, not sure how that can happen, but we saw a crash here
1717		3186
1718	(shift @$queue)->[1]->($msg);	3187	(shift @$queue)->[1]->($msg);
		3188	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1719		3189
1720	push @{ $ns->{query_queue} }, @$queue;	3190	push @{ $ns->{query_queue} }, @$queue;
1721		3191
1722	if (@{ $ns->{query_queue} } == @$queue) {	3192	if (@{ $ns->{query_queue} } == @$queue) {
1723	if (@$queue) {	3193	if (@$queue) {
…		…
1725	} else {	3195	} else {
1726	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3196	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1727	}	3197	}
1728	}	3198	}
1729	},	3199	},
		3200	on_exticmd => sub {
		3201	my ($ns, $buf) = @_;
		3202
		3203	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3204
		3205	if (ref $msg) {
		3206	my ($type, $reply, @payload) =
		3207	"ARRAY" eq ref $msg
		3208	? @$msg
		3209	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3210
		3211	my @reply;
		3212
		3213	if (my $cb = $EXTICMD{$type}) {
		3214	@reply = $cb->($ns, @payload);
		3215	}
		3216
		3217	$ns->ext_reply ($reply, @reply)
		3218	if $reply;
		3219
		3220	} else {
		3221	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3222	}
		3223
		3224	cf::override;
		3225	},
1730	);	3226	);
1731		3227
1732	=item $client->coro (\&cb)	3228	=item $client->async (\&cb)
1733		3229
1734	Create a new coroutine, running the specified callback. The coroutine will	3230	Create a new coroutine, running the specified callback. The coroutine will
1735	be automatically cancelled when the client gets destroyed (e.g. on logout,	3231	be automatically cancelled when the client gets destroyed (e.g. on logout,
1736	or loss of connection).	3232	or loss of connection).
1737		3233
1738	=cut	3234	=cut
1739		3235
1740	sub cf::client::coro {	3236	sub cf::client::async {
1741	my ($self, $cb) = @_;	3237	my ($self, $cb) = @_;
1742		3238
1743	my $coro = &Coro::async_pool ($cb);	3239	my $coro = &Coro::async ($cb);
1744		3240
1745	$coro->on_destroy (sub {	3241	$coro->on_destroy (sub {
1746	delete $self->{_coro}{$coro+0};	3242	delete $self->{_coro}{$coro+0};
1747	});	3243	});
1748		3244
…		…
1750		3246
1751	$coro	3247	$coro
1752	}	3248	}
1753		3249
1754	cf::client->attach (	3250	cf::client->attach (
1755	on_destroy => sub {	3251	on_client_destroy => sub {
1756	my ($ns) = @_;	3252	my ($ns) = @_;
1757		3253
1758	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3254	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1759	},	3255	},
1760	);	3256	);
…		…
1775	our $safe = new Safe "safe";	3271	our $safe = new Safe "safe";
1776	our $safe_hole = new Safe::Hole;	3272	our $safe_hole = new Safe::Hole;
1777		3273
1778	$SIG{FPE} = 'IGNORE';	3274	$SIG{FPE} = 'IGNORE';
1779		3275
1780	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3276	$safe->permit_only (Opcode::opset qw(
		3277	:base_core :base_mem :base_orig :base_math :base_loop
		3278	grepstart grepwhile mapstart mapwhile
		3279	sort time
		3280	));
1781		3281
1782	# here we export the classes and methods available to script code	3282	# here we export the classes and methods available to script code
1783		3283
1784	=pod	3284	=pod
1785		3285
1786	The following fucntions and emthods are available within a safe environment:	3286	The following functions and methods are available within a safe environment:
1787		3287
1788	cf::object contr pay_amount pay_player map	3288	cf::object
		3289	contr pay_amount pay_player map x y force_find force_add destroy
		3290	insert remove name archname title slaying race decrease split
		3291	value
		3292
1789	cf::object::player player	3293	cf::object::player
1790	cf::player peaceful	3294	player
1791	cf::map trigger	3295
		3296	cf::player
		3297	peaceful
		3298
		3299	cf::map
		3300	trigger
1792		3301
1793	=cut	3302	=cut
1794		3303
1795	for (	3304	for (
1796	["cf::object" => qw(contr pay_amount pay_player map)],	3305	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3306	insert remove inv nrof name archname title slaying race
		3307	decrease split destroy change_exp value msg lore send_msg)],
1797	["cf::object::player" => qw(player)],	3308	["cf::object::player" => qw(player)],
1798	["cf::player" => qw(peaceful)],	3309	["cf::player" => qw(peaceful send_msg)],
1799	["cf::map" => qw(trigger)],	3310	["cf::map" => qw(trigger)],
1800	) {	3311	) {
1801	no strict 'refs';
1802	my ($pkg, @funs) = @$_;	3312	my ($pkg, @funs) = @$_;
1803	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3313	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1804	for @funs;	3314	for @funs;
1805	}	3315	}
1806		3316
…		…
1821		3331
1822	my $qcode = $code;	3332	my $qcode = $code;
1823	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3333	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1824	$qcode =~ s/\n/\\n/g;	3334	$qcode =~ s/\n/\\n/g;
1825		3335
		3336	%vars = (_dummy => 0) unless %vars;
		3337
		3338	my @res;
1826	local $_;	3339	local $_;
1827	local @safe::cf::_safe_eval_args = values %vars;
1828		3340
1829	my $eval =	3341	my $eval =
1830	"do {\n"	3342	"do {\n"
1831	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3343	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1832	. "#line 0 \"{$qcode}\"\n"	3344	. "#line 0 \"{$qcode}\"\n"
1833	. $code	3345	. $code
1834	. "\n}"	3346	. "\n}"
1835	;	3347	;
1836		3348
		3349	if ($CFG{safe_eval}) {
1837	sub_generation_inc;	3350	sub_generation_inc;
		3351	local @safe::cf::_safe_eval_args = values %vars;
1838	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3352	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1839	sub_generation_inc;	3353	sub_generation_inc;
		3354	} else {
		3355	local @cf::_safe_eval_args = values %vars;
		3356	@res = wantarray ? eval eval : scalar eval $eval;
		3357	}
1840		3358
1841	if ($@) {	3359	if ($@) {
1842	warn "$@";	3360	warn "$@",
1843	warn "while executing safe code '$code'\n";	3361	"while executing safe code '$code'\n",
1844	warn "with arguments " . (join " ", %vars) . "\n";	3362	"with arguments " . (join " ", %vars) . "\n";
1845	}	3363	}
1846		3364
1847	wantarray ? @res : $res[0]	3365	wantarray ? @res : $res[0]
1848	}	3366	}
1849		3367
…		…
1863	=cut	3381	=cut
1864		3382
1865	sub register_script_function {	3383	sub register_script_function {
1866	my ($fun, $cb) = @_;	3384	my ($fun, $cb) = @_;
1867		3385
1868	no strict 'refs';	3386	$fun = "safe::$fun" if $CFG{safe_eval};
1869	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3387	*$fun = $safe_hole->wrap ($cb);
1870	}	3388	}
1871		3389
1872	=back	3390	=back
1873		3391
1874	=cut	3392	=cut
1875		3393
1876	#############################################################################	3394	#############################################################################
		3395	# the server's init and main functions
1877		3396
1878	=head2 EXTENSION DATABASE SUPPORT	3397	sub load_facedata($) {
		3398	my ($path) = @_;
1879		3399
1880	Crossfire maintains a very simple database for extension use. It can	3400	# HACK to clear player env face cache, we need some signal framework
1881	currently store anything that can be serialised using Storable, which	3401	# for this (global event?)
1882	excludes objects.	3402	%ext::player_env::MUSIC_FACE_CACHE = ();
1883		3403
1884	The parameter C<$family> should best start with the name of the extension	3404	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1885	using it, it should be unique.
1886		3405
1887	=over 4	3406	trace "loading facedata from $path\n";
1888		3407
1889	=item $hashref = cf::db_get $family	3408	0 < aio_load $path, my $facedata
		3409	or die "$path: $!";
1890		3410
1891	Return a hashref for use by the extension C<$family>, which can be	3411	$facedata = Coro::Storable::thaw $facedata;
1892	modified. After modifications, you have to call C<cf::db_dirty> or
1893	C<cf::db_sync>.
1894		3412
1895	=item $value = cf::db_get $family => $key	3413	$facedata->{version} == 2
		3414	or cf::cleanup "$path: version mismatch, cannot proceed.";
1896		3415
1897	Returns a single value from the database	3416	# patch in the exptable
1898		3417	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1899	=item cf::db_put $family => $hashref	3418	$facedata->{resource}{"res/exp_table"} = {
1900		3419	type => FT_RSRC,
1901	Stores the given family hashref into the database. Updates are delayed, if	3420	data => $exp_table,
1902	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3421	hash => (Digest::MD5::md5 $exp_table),
1903
1904	=item cf::db_put $family => $key => $value
1905
1906	Stores the given C<$value> in the family hash. Updates are delayed, if you
1907	want the data to be synced to disk immediately, use C<cf::db_sync>.
1908
1909	=item cf::db_dirty
1910
1911	Marks the database as dirty, to be updated at a later time.
1912
1913	=item cf::db_sync
1914
1915	Immediately write the database to disk I<if it is dirty>.
1916
1917	=cut
1918
1919	our $DB;
1920
1921	{
1922	my $path = cf::localdir . "/database.pst";
1923
1924	sub db_load() {
1925	$DB = stat $path ? Storable::retrieve $path : { };
1926	}
1927
1928	my $pid;
1929
1930	sub db_save() {
1931	waitpid $pid, 0 if $pid;
1932	if (0 == ($pid = fork)) {
1933	$DB->{_meta}{version} = 1;
1934	Storable::nstore $DB, "$path~";
1935	rename "$path~", $path;
1936	cf::_exit 0 if defined $pid;
1937	}
1938	}
1939
1940	my $dirty;
1941
1942	sub db_sync() {
1943	db_save if $dirty;
1944	undef $dirty;
1945	}
1946
1947	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1948	db_sync;
1949	});	3422	};
		3423	cf::cede_to_tick;
1950		3424
1951	sub db_dirty() {
1952	$dirty = 1;
1953	$idle->start;
1954	}	3425	{
		3426	my $faces = $facedata->{faceinfo};
1955		3427
1956	sub db_get($;$) {	3428	while (my ($face, $info) = each %$faces) {
1957	@_ >= 2	3429	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1958	? $DB->{$_[0]}{$_[1]}
1959	: ($DB->{$_[0]} ||= { })
1960	}
1961		3430
1962	sub db_put($$;$) {	3431	cf::face::set_visibility $idx, $info->{visibility};
1963	if (@_ >= 3) {	3432	cf::face::set_magicmap $idx, $info->{magicmap};
1964	$DB->{$_[0]}{$_[1]} = $_[2];	3433	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1965	} else {	3434	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1966	$DB->{$_[0]} = $_[1];
1967	}
1968	db_dirty;
1969	}
1970		3435
1971	cf::global->attach (	3436	cf::cede_to_tick;
1972	prio => 10000,
1973	on_cleanup => sub {
1974	db_sync;
1975	},	3437	}
1976	);
1977	}
1978		3438
1979	#############################################################################	3439	while (my ($face, $info) = each %$faces) {
1980	# the server's main()	3440	next unless $info->{smooth};
1981		3441
1982	sub cfg_load {	3442	my $idx = cf::face::find $face
1983	open my $fh, "<:utf8", cf::confdir . "/config"	3443	or next;
1984	or return;
1985		3444
1986	local $/;	3445	if (my $smooth = cf::face::find $info->{smooth}) {
1987	*CFG = YAML::Syck::Load <$fh>;	3446	cf::face::set_smooth $idx, $smooth;
		3447	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3448	} else {
		3449	error "smooth face '$info->{smooth}' not found for face '$face'";
		3450	}
1988		3451
		3452	cf::cede_to_tick;
		3453	}
		3454	}
		3455
		3456	{
		3457	my $anims = $facedata->{animinfo};
		3458
		3459	while (my ($anim, $info) = each %$anims) {
		3460	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3461	cf::cede_to_tick;
		3462	}
		3463
		3464	cf::anim::invalidate_all; # d'oh
		3465	}
		3466
		3467	{
		3468	my $res = $facedata->{resource};
		3469
		3470	while (my ($name, $info) = each %$res) {
		3471	if (defined $info->{type}) {
		3472	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3473
		3474	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3475	cf::face::set_type $idx, $info->{type};
		3476	} else {
		3477	$RESOURCE{$name} = $info; # unused
		3478	}
		3479
		3480	cf::cede_to_tick;
		3481	}
		3482	}
		3483
		3484	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3485
		3486	1
		3487	}
		3488
		3489	register_exticmd fx_want => sub {
		3490	my ($ns, $want) = @_;
		3491
		3492	while (my ($k, $v) = each %$want) {
		3493	$ns->fx_want ($k, $v);
		3494	}
		3495	};
		3496
		3497	sub load_resource_file($) {
		3498	my $guard = lock_acquire "load_resource_file";
		3499
		3500	my $status = load_resource_file_ $_[0];
		3501	get_slot 0.1, 100;
		3502	cf::arch::commit_load;
		3503
		3504	$status
		3505	}
		3506
		3507	sub reload_regions {
		3508	# HACK to clear player env face cache, we need some signal framework
		3509	# for this (global event?)
		3510	%ext::player_env::MUSIC_FACE_CACHE = ();
		3511
		3512	load_resource_file "$MAPDIR/regions"
		3513	or die "unable to load regions file\n";
		3514
		3515	for (cf::region::list) {
		3516	$_->{match} = qr/$_->{match}/
		3517	if exists $_->{match};
		3518	}
		3519	}
		3520
		3521	sub reload_facedata {
		3522	load_facedata "$DATADIR/facedata"
		3523	or die "unable to load facedata\n";
		3524	}
		3525
		3526	sub reload_archetypes {
		3527	load_resource_file "$DATADIR/archetypes"
		3528	or die "unable to load archetypes\n";
		3529	}
		3530
		3531	sub reload_treasures {
		3532	load_resource_file "$DATADIR/treasures"
		3533	or die "unable to load treasurelists\n";
		3534	}
		3535
		3536	sub reload_sound {
		3537	trace "loading sound config from $DATADIR/sound\n";
		3538
		3539	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3540	or die "$DATADIR/sound $!";
		3541
		3542	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3543
		3544	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3545	my $sound = $soundconf->{compat}[$_]
		3546	or next;
		3547
		3548	my $face = cf::face::find "sound/$sound->[1]";
		3549	cf::sound::set $sound->[0] => $face;
		3550	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3551	}
		3552
		3553	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3554	my $face = cf::face::find "sound/$v";
		3555	cf::sound::set $k => $face;
		3556	}
		3557	}
		3558
		3559	sub reload_resources {
		3560	trace "reloading resource files...\n";
		3561
		3562	reload_exp_table;
		3563	reload_materials;
		3564	reload_facedata;
		3565	reload_sound;
		3566	reload_archetypes;
		3567	reload_regions;
		3568	reload_treasures;
		3569
		3570	trace "finished reloading resource files\n";
		3571	}
		3572
		3573	sub reload_config {
		3574	trace "reloading config file...\n";
		3575
		3576	0 < aio_load "$CONFDIR/config", my $config
		3577	or die "$CONFDIR/config: $!";
		3578
		3579	utf8::decode $config;
		3580	*CFG = yaml_load $config;
		3581
1989	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3582	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
1990		3583
1991	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3584	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
1992	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3585	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1993		3586
1994	if (exists $CFG{mlockall}) {	3587	if (exists $CFG{mlockall}) {
1995	eval {	3588	eval {
1996	$CFG{mlockall} ? &mlockall : &munlockall	3589	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1997	and die "WARNING: m(un)lockall failed: $!\n";	3590	and die "WARNING: m(un)lockall failed: $!\n";
1998	};	3591	};
1999	warn $@ if $@;	3592	warn $@ if $@;
2000	}	3593	}
2001	}	3594	}
2002		3595
		3596	sub pidfile() {
		3597	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3598	or die "$PIDFILE: $!";
		3599	flock $fh, &Fcntl::LOCK_EX
		3600	or die "$PIDFILE: flock: $!";
		3601	$fh
		3602	}
		3603
		3604	# make sure only one server instance is running at any one time
		3605	sub atomic {
		3606	my $fh = pidfile;
		3607
		3608	my $pid = <$fh>;
		3609	kill 9, $pid if $pid > 0;
		3610
		3611	seek $fh, 0, 0;
		3612	print $fh $$;
		3613	}
		3614
		3615	sub main_loop {
		3616	trace "EV::loop starting\n";
		3617	if (1) {
		3618	EV::loop;
		3619	}
		3620	trace "EV::loop returned\n";
		3621	goto &main_loop unless $REALLY_UNLOOP;
		3622	}
		3623
2003	sub main {	3624	sub main {
		3625	cf::init_globals; # initialise logging
		3626
		3627	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3628	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3629	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3630	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3631
		3632	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3633
2004	# we must not ever block the main coroutine	3634	# we must not ever block the main coroutine
2005	local $Coro::idle = sub {	3635	local $Coro::idle = sub {
2006	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3636	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2007	Coro::async_pool { Event::one_event };	3637	(async {
		3638	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3639	EV::loop EV::LOOP_ONESHOT;
		3640	})->prio (Coro::PRIO_MAX);
2008	};	3641	};
2009		3642
2010	cfg_load;	3643	evthread_start IO::AIO::poll_fileno;
2011	db_load;	3644
		3645	cf::sync_job {
		3646	cf::incloader::init ();
		3647
		3648	cf::init_anim;
		3649	cf::init_attackmess;
		3650	cf::init_dynamic;
		3651
		3652	cf::load_settings;
		3653
		3654	reload_resources;
		3655	reload_config;
		3656	db_init;
		3657
		3658	cf::init_uuid;
		3659	cf::init_signals;
		3660	cf::init_skills;
		3661
		3662	cf::init_beforeplay;
		3663
		3664	atomic;
		3665
2012	load_extensions;	3666	load_extensions;
2013	Event::loop;	3667
		3668	utime time, time, $RUNTIMEFILE;
		3669
		3670	# no (long-running) fork's whatsoever before this point(!)
		3671	use POSIX ();
		3672	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3673
		3674	cf::_post_init 0;
		3675	};
		3676
		3677	cf::object::thawer::errors_are_fatal 0;
		3678	info "parse errors in files are no longer fatal from this point on.\n";
		3679
		3680	my $free_main; $free_main = EV::idle sub {
		3681	undef $free_main;
		3682	undef &main; # free gobs of memory :)
		3683	};
		3684
		3685	goto &main_loop;
2014	}	3686	}
2015		3687
2016	#############################################################################	3688	#############################################################################
2017	# initialisation	3689	# initialisation and cleanup
2018		3690
		3691	# install some emergency cleanup handlers
		3692	BEGIN {
		3693	our %SIGWATCHER = ();
		3694	for my $signal (qw(INT HUP TERM)) {
		3695	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3696	cf::cleanup "SIG$signal";
		3697	};
		3698	}
		3699	}
		3700
		3701	sub write_runtime_sync {
		3702	my $t0 = AE::time;
		3703
		3704	# first touch the runtime file to show we are still running:
		3705	# the fsync below can take a very very long time.
		3706
		3707	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3708
		3709	my $guard = cf::lock_acquire "write_runtime";
		3710
		3711	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3712	or return;
		3713
		3714	my $value = $cf::RUNTIME + 90 + 10;
		3715	# 10 is the runtime save interval, for a monotonic clock
		3716	# 60 allows for the watchdog to kill the server.
		3717
		3718	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3719	and return;
		3720
		3721	# always fsync - this file is important
		3722	aio_fsync $fh
		3723	and return;
		3724
		3725	# touch it again to show we are up-to-date
		3726	aio_utime $fh, undef, undef;
		3727
		3728	close $fh
		3729	or return;
		3730
		3731	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3732	and return;
		3733
		3734	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3735
		3736	1
		3737	}
		3738
		3739	our $uuid_lock;
		3740	our $uuid_skip;
		3741
		3742	sub write_uuid_sync($) {
		3743	$uuid_skip ||= $_[0];
		3744
		3745	return if $uuid_lock;
		3746	local $uuid_lock = 1;
		3747
		3748	my $uuid = "$LOCALDIR/uuid";
		3749
		3750	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3751	or return;
		3752
		3753	my $value = uuid_seq uuid_cur;
		3754
		3755	unless ($value) {
		3756	info "cowardly refusing to write zero uuid value!\n";
		3757	return;
		3758	}
		3759
		3760	my $value = uuid_str $value + $uuid_skip;
		3761	$uuid_skip = 0;
		3762
		3763	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3764	and return;
		3765
		3766	# always fsync - this file is important
		3767	aio_fsync $fh
		3768	and return;
		3769
		3770	close $fh
		3771	or return;
		3772
		3773	aio_rename "$uuid~", $uuid
		3774	and return;
		3775
		3776	trace "uuid file written ($value).\n";
		3777
		3778	1
		3779
		3780	}
		3781
		3782	sub write_uuid($$) {
		3783	my ($skip, $sync) = @_;
		3784
		3785	$sync ? write_uuid_sync $skip
		3786	: async { write_uuid_sync $skip };
		3787	}
		3788
		3789	sub emergency_save() {
		3790	my $freeze_guard = cf::freeze_mainloop;
		3791
		3792	info "emergency_perl_save: enter\n";
		3793
		3794	# this is a trade-off: we want to be very quick here, so
		3795	# save all maps without fsync, and later call a global sync
		3796	# (which in turn might be very very slow)
		3797	local $USE_FSYNC = 0;
		3798
		3799	cf::sync_job {
		3800	cf::write_runtime_sync; # external watchdog should not bark
		3801
		3802	# use a peculiar iteration method to avoid tripping on perl
		3803	# refcount bugs in for. also avoids problems with players
		3804	# and maps saved/destroyed asynchronously.
		3805	info "emergency_perl_save: begin player save\n";
		3806	for my $login (keys %cf::PLAYER) {
		3807	my $pl = $cf::PLAYER{$login} or next;
		3808	$pl->valid or next;
		3809	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3810	$pl->save;
		3811	}
		3812	info "emergency_perl_save: end player save\n";
		3813
		3814	cf::write_runtime_sync; # external watchdog should not bark
		3815
		3816	info "emergency_perl_save: begin map save\n";
		3817	for my $path (keys %cf::MAP) {
		3818	my $map = $cf::MAP{$path} or next;
		3819	$map->valid or next;
		3820	$map->save;
		3821	}
		3822	info "emergency_perl_save: end map save\n";
		3823
		3824	cf::write_runtime_sync; # external watchdog should not bark
		3825
		3826	info "emergency_perl_save: begin database checkpoint\n";
		3827	BDB::db_env_txn_checkpoint $DB_ENV;
		3828	info "emergency_perl_save: end database checkpoint\n";
		3829
		3830	info "emergency_perl_save: begin write uuid\n";
		3831	write_uuid_sync 1;
		3832	info "emergency_perl_save: end write uuid\n";
		3833
		3834	cf::write_runtime_sync; # external watchdog should not bark
		3835
		3836	trace "emergency_perl_save: syncing database to disk";
		3837	BDB::db_env_txn_checkpoint $DB_ENV;
		3838
		3839	info "emergency_perl_save: starting sync\n";
		3840	IO::AIO::aio_sync sub {
		3841	info "emergency_perl_save: finished sync\n";
		3842	};
		3843
		3844	cf::write_runtime_sync; # external watchdog should not bark
		3845
		3846	trace "emergency_perl_save: flushing outstanding aio requests";
		3847	while (IO::AIO::nreqs || BDB::nreqs) {
		3848	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3849	}
		3850
		3851	cf::write_runtime_sync; # external watchdog should not bark
		3852	};
		3853
		3854	info "emergency_perl_save: leave\n";
		3855	}
		3856
		3857	sub post_cleanup {
		3858	my ($make_core) = @_;
		3859
		3860	IO::AIO::flush;
		3861
		3862	error Carp::longmess "post_cleanup backtrace"
		3863	if $make_core;
		3864
		3865	my $fh = pidfile;
		3866	unlink $PIDFILE if <$fh> == $$;
		3867	}
		3868
		3869	# a safer delete_package, copied from Symbol
		3870	sub clear_package($) {
		3871	my $pkg = shift;
		3872
		3873	# expand to full symbol table name if needed
		3874	unless ($pkg =~ /^main::.*::$/) {
		3875	$pkg = "main$pkg" if $pkg =~ /^::/;
		3876	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3877	$pkg .= '::' unless $pkg =~ /::$/;
		3878	}
		3879
		3880	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3881	my $stem_symtab = *{$stem}{HASH};
		3882
		3883	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3884	or return;
		3885
		3886	# clear all symbols
		3887	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3888	for my $name (keys %$leaf_symtab) {
		3889	_gv_clear *{"$pkg$name"};
		3890	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3891	}
		3892	}
		3893
2019	sub reload() {	3894	sub do_reload_perl() {
2020	# can/must only be called in main	3895	# can/must only be called in main
2021	if ($Coro::current != $Coro::main) {	3896	unless (in_main) {
2022	warn "can only reload from main coroutine\n";	3897	error "can only reload from main coroutine";
2023	return;	3898	return;
2024	}	3899	}
2025		3900
2026	warn "reloading...";	3901	return if $RELOAD++;
2027		3902
2028	my $guard = freeze_mainloop;	3903	my $t1 = AE::time;
		3904
		3905	while ($RELOAD) {
		3906	cf::get_slot 0.1, -1, "reload_perl";
		3907	info "perl_reload: reloading...";
		3908
		3909	trace "perl_reload: entering sync_job";
		3910
		3911	cf::sync_job {
2029	cf::emergency_save;	3912	#cf::emergency_save;
2030		3913
2031	eval {	3914	trace "perl_reload: cancelling all extension coros";
2032	# if anything goes wrong in here, we should simply crash as we already saved
2033
2034	# cancel all watchers
2035	for (Event::all_watchers) {
2036	$_->cancel if $_->data & WF_AUTOCANCEL;
2037	}
2038
2039	# cancel all extension coros
2040	$_->cancel for values %EXT_CORO;	3915	$_->cancel for values %EXT_CORO;
2041	%EXT_CORO = ();	3916	%EXT_CORO = ();
2042		3917
2043	# unload all extensions	3918	trace "perl_reload: removing commands";
2044	for (@exts) {	3919	%COMMAND = ();
2045	warn "unloading <$_>";
2046	unload_extension $_;
2047	}
2048		3920
2049	# unload all modules loaded from $LIBDIR	3921	trace "perl_reload: removing ext/exti commands";
2050	while (my ($k, $v) = each %INC) {	3922	%EXTCMD = ();
2051	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3923	%EXTICMD = ();
2052		3924
2053	warn "removing <$k>";	3925	trace "perl_reload: unloading/nuking all extensions";
2054	delete $INC{$k};	3926	for my $pkg (@EXTS) {
		3927	trace "... unloading $pkg";
2055		3928
2056	$k =~ s/\.pm$//;
2057	$k =~ s/\//::/g;
2058
2059	if (my $cb = $k->can ("unload_module")) {	3929	if (my $cb = $pkg->can ("unload")) {
		3930	eval {
2060	$cb->();	3931	$cb->($pkg);
		3932	1
		3933	} or error "$pkg unloaded, but with errors: $@";
		3934	}
		3935
		3936	trace "... clearing $pkg";
		3937	clear_package $pkg;
2061	}	3938	}
2062		3939
2063	Symbol::delete_package $k;	3940	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3941	while (my ($k, $v) = each %INC) {
		3942	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3943
		3944	trace "... unloading $k";
		3945	delete $INC{$k};
		3946
		3947	$k =~ s/\.pm$//;
		3948	$k =~ s/\//::/g;
		3949
		3950	if (my $cb = $k->can ("unload_module")) {
		3951	$cb->();
		3952	}
		3953
		3954	clear_package $k;
2064	}	3955	}
2065		3956
2066	# sync database to disk
2067	cf::db_sync;
2068	IO::AIO::flush;
2069
2070	# get rid of safe::, as good as possible	3957	trace "perl_reload: getting rid of safe::, as good as possible";
2071	Symbol::delete_package "safe::$_"	3958	clear_package "safe::$_"
2072	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2073		3960
2074	# remove register_script_function callbacks	3961	trace "perl_reload: unloading cf.pm \"a bit\"";
2075	# TODO
2076
2077	# unload cf.pm "a bit"
2078	delete $INC{"cf.pm"};	3962	delete $INC{"cf.pm"};
		3963	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2079		3964
2080	# don't, removes xs symbols, too,	3965	# don't, removes xs symbols, too,
2081	# and global variables created in xs	3966	# and global variables created in xs
2082	#Symbol::delete_package __PACKAGE__;	3967	#clear_package __PACKAGE__;
2083		3968
2084	# reload cf.pm	3969	info "perl_reload: unload completed, starting to reload now";
2085	warn "reloading cf.pm";	3970
		3971	trace "perl_reload: reloading cf.pm";
2086	require cf;	3972	require cf;
2087	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3973	cf::_connect_to_perl_1;
2088		3974
2089	# load config and database again	3975	trace "perl_reload: loading config and database again";
2090	cf::cfg_load;	3976	cf::reload_config;
2091	cf::db_load;
2092		3977
2093	# load extensions	3978	trace "perl_reload: loading extensions";
2094	warn "load extensions";
2095	cf::load_extensions;	3979	cf::load_extensions;
2096		3980
2097	# reattach attachments to objects	3981	if ($REATTACH_ON_RELOAD) {
2098	warn "reattach";	3982	trace "perl_reload: reattaching attachments to objects/players";
2099	_global_reattach;	3983	_global_reattach; # objects, sockets
		3984	trace "perl_reload: reattaching attachments to maps";
		3985	reattach $_ for values %MAP;
		3986	trace "perl_reload: reattaching attachments to players";
		3987	reattach $_ for values %PLAYER;
		3988	}
		3989
		3990	cf::_post_init 1;
		3991
		3992	trace "perl_reload: leaving sync_job";
		3993
		3994	1
		3995	} or do {
		3996	error $@;
		3997	cf::cleanup "perl_reload: error, exiting.";
		3998	};
		3999
		4000	--$RELOAD;
		4001	}
		4002
		4003	$t1 = AE::time - $t1;
		4004	info "perl_reload: completed in ${t1}s\n";
		4005	};
		4006
		4007	our $RELOAD_WATCHER; # used only during reload
		4008
		4009	sub reload_perl() {
		4010	# doing reload synchronously and two reloads happen back-to-back,
		4011	# coro crashes during coro_state_free->destroy here.
		4012
		4013	$RELOAD_WATCHER ||= cf::async {
		4014	Coro::AIO::aio_wait cache_extensions;
		4015
		4016	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4017	do_reload_perl;
		4018	undef $RELOAD_WATCHER;
		4019	};
2100	};	4020	};
2101
2102	if ($@) {
2103	warn $@;
2104	warn "error while reloading, exiting.";
2105	exit 1;
2106	}
2107
2108	warn "reloaded successfully";
2109	};
2110
2111	#############################################################################
2112
2113	unless ($LINK_MAP) {
2114	$LINK_MAP = cf::map::new;
2115
2116	$LINK_MAP->width (41);
2117	$LINK_MAP->height (41);
2118	$LINK_MAP->alloc;
2119	$LINK_MAP->path ("{link}");
2120	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2121	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2122
2123	# dirty hack because... archetypes are not yet loaded
2124	Event->timer (
2125	after => 2,
2126	cb => sub {
2127	$_[0]->w->cancel;
2128
2129	# provide some exits "home"
2130	my $exit = cf::object::new "exit";
2131
2132	$exit->slaying ($EMERGENCY_POSITION->[0]);
2133	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2134	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2135
2136	$LINK_MAP->insert ($exit->clone, 19, 19);
2137	$LINK_MAP->insert ($exit->clone, 19, 20);
2138	$LINK_MAP->insert ($exit->clone, 19, 21);
2139	$LINK_MAP->insert ($exit->clone, 20, 19);
2140	$LINK_MAP->insert ($exit->clone, 20, 21);
2141	$LINK_MAP->insert ($exit->clone, 21, 19);
2142	$LINK_MAP->insert ($exit->clone, 21, 20);
2143	$LINK_MAP->insert ($exit->clone, 21, 21);
2144
2145	$exit->destroy;
2146	});
2147
2148	$LINK_MAP->{deny_save} = 1;
2149	$LINK_MAP->{deny_reset} = 1;
2150
2151	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2152	}	4021	}
2153
2154	register "<global>", __PACKAGE__;
2155		4022
2156	register_command "reload" => sub {	4023	register_command "reload" => sub {
2157	my ($who, $arg) = @_;	4024	my ($who, $arg) = @_;
2158		4025
2159	if ($who->flag (FLAG_WIZ)) {	4026	if ($who->flag (FLAG_WIZ)) {
2160	$who->message ("start of reload.");
2161	reload;
2162	$who->message ("end of reload.");	4027	$who->message ("reloading server.");
		4028	async {
		4029	$Coro::current->{desc} = "perl_reload";
		4030	reload_perl;
		4031	};
2163	}	4032	}
2164	};	4033	};
2165		4034
2166	unshift @INC, $LIBDIR;	4035	#############################################################################
2167		4036
2168	$TICK_WATCHER = Event->timer (	4037	my $bug_warning = 0;
2169	reentrant => 0,	4038
2170	prio => 0,	4039	our @WAIT_FOR_TICK;
2171	at => $NEXT_TICK || $TICK,	4040	our @WAIT_FOR_TICK_BEGIN;
2172	data => WF_AUTOCANCEL,	4041
2173	cb => sub {	4042	sub wait_for_tick() {
		4043	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4044
		4045	my $signal = new Coro::Signal;
		4046	push @WAIT_FOR_TICK, $signal;
		4047	$signal->wait;
		4048	}
		4049
		4050	sub wait_for_tick_begin() {
		4051	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4052
		4053	my $signal = new Coro::Signal;
		4054	push @WAIT_FOR_TICK_BEGIN, $signal;
		4055	$signal->wait;
		4056	}
		4057
		4058	sub tick {
		4059	if ($Coro::current != $Coro::main) {
		4060	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4061	unless ++$bug_warning > 10;
		4062	return;
		4063	}
		4064
2174	cf::server_tick; # one server iteration	4065	cf::server_tick; # one server iteration
2175	$RUNTIME += $TICK;
2176	$NEXT_TICK += $TICK;
2177		4066
2178	# if we are delayed by four ticks or more, skip them all	4067	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2179	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2180		4068
2181	$TICK_WATCHER->at ($NEXT_TICK);	4069	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2182	$TICK_WATCHER->start;	4070	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2183	},	4071	Coro::async_pool {
2184	);	4072	$Coro::current->{desc} = "runtime saver";
2185
2186	IO::AIO::max_poll_time $TICK * 0.2;
2187
2188	Event->io (
2189	fd => IO::AIO::poll_fileno,
2190	poll => 'r',
2191	prio => 5,
2192	data => WF_AUTOCANCEL,
2193	cb => \&IO::AIO::poll_cb,
2194	);
2195
2196	Event->timer (
2197	data => WF_AUTOCANCEL,
2198	after => 0,
2199	interval => 10,
2200	cb => sub {
2201	(Coro::unblock_sub {
2202	write_runtime	4073	write_runtime_sync
2203	or warn "ERROR: unable to write runtime file: $!";	4074	or error "ERROR: unable to write runtime file: $!";
2204	})->();	4075	};
2205	},	4076	}
2206	);	4077
		4078	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4079	$sig->send;
		4080	}
		4081	while (my $sig = shift @WAIT_FOR_TICK) {
		4082	$sig->send;
		4083	}
		4084
		4085	$LOAD = ($NOW - $TICK_START) / $TICK;
		4086	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4087
		4088	if (0) {
		4089	if ($NEXT_TICK) {
		4090	my $jitter = $TICK_START - $NEXT_TICK;
		4091	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4092	debug "jitter $JITTER\n";#d#
		4093	}
		4094	}
		4095	}
		4096
		4097	{
		4098	# configure BDB
		4099
		4100	BDB::min_parallel 16;
		4101	BDB::max_poll_reqs $TICK * 0.1;
		4102	$AnyEvent::BDB::WATCHER->priority (1);
		4103
		4104	unless ($DB_ENV) {
		4105	$DB_ENV = BDB::db_env_create;
		4106	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4107	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4108	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4109	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4110	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4111
		4112	cf::sync_job {
		4113	eval {
		4114	BDB::db_env_open
		4115	$DB_ENV,
		4116	$BDBDIR,
		4117	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4118	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4119	0666;
		4120
		4121	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4122	};
		4123
		4124	cf::cleanup "db_env_open(db): $@" if $@;
		4125	};
		4126	}
		4127
		4128	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4129	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4130	};
		4131	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4132	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4133	};
		4134	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4135	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4136	};
		4137	}
		4138
		4139	{
		4140	# configure IO::AIO
		4141
		4142	IO::AIO::min_parallel 8;
		4143	IO::AIO::max_poll_time $TICK * 0.1;
		4144	undef $AnyEvent::AIO::WATCHER;
		4145	}
		4146
		4147	our $_log_backtrace;
		4148	our $_log_backtrace_last;
		4149
		4150	sub _log_backtrace {
		4151	my ($msg, @addr) = @_;
		4152
		4153	$msg =~ s/\n$//;
		4154
		4155	if ($_log_backtrace_last eq $msg) {
		4156	LOG llevInfo, "[ABT] $msg\n";
		4157	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4158	# limit the # of concurrent backtraces
		4159	} elsif ($_log_backtrace < 2) {
		4160	$_log_backtrace_last = $msg;
		4161	++$_log_backtrace;
		4162	my $perl_bt = Carp::longmess $msg;
		4163	async {
		4164	$Coro::current->{desc} = "abt $msg";
		4165
		4166	my @bt = fork_call {
		4167	@addr = map { sprintf "%x", $_ } @addr;
		4168	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4169	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4170	or die "addr2line: $!";
		4171
		4172	my @funcs;
		4173	my @res = <$fh>;
		4174	chomp for @res;
		4175	while (@res) {
		4176	my ($func, $line) = splice @res, 0, 2, ();
		4177	push @funcs, "[$func] $line";
		4178	}
		4179
		4180	@funcs
		4181	};
		4182
		4183	LOG llevInfo, "[ABT] $perl_bt\n";
		4184	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4185	LOG llevInfo, "[ABT] $_\n" for @bt;
		4186	--$_log_backtrace;
		4187	};
		4188	} else {
		4189	LOG llevInfo, "[ABT] $msg\n";
		4190	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4191	}
		4192	}
		4193
		4194	# load additional modules
		4195	require "cf/$_.pm" for @EXTRA_MODULES;
		4196	cf::_connect_to_perl_2;
2207		4197
2208	END { cf::emergency_save }	4198	END { cf::emergency_save }
2209		4199
2210	1	4200	1
2211		4201

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