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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.138 by root, Fri Jan 5 17:07:17 2007 UTC vs.
Revision 1.531 by root, Wed Apr 28 21:07:41 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
20	use Digest::MD5;	55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
21	use Fcntl;	58	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
24	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
25		64
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
27		66
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		71
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE; # unused
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	121	our $NEXT_TICK;
45	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
46		130
47	our %CFG;	131	our %CFG;
48		132
49	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
51		136
52	our %MAP; # all maps	137	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	138	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	139	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	140
		141	# used to convert map paths into valid unix filenames by replacing / by ∕
		142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
56		153
57	binmode STDOUT;	154	binmode STDOUT;
58	binmode STDERR;	155	binmode STDERR;
59		156
60	# read virtual server time, if available	157	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
65	}	162	}
66		163
67	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		165
73	# a special map that is always available	166	mkdir $_
74	our $LINK_MAP;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		168
75	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
		170
		171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
76		187
77	#############################################################################	188	#############################################################################
78		189
79	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
80		191
…		…
87	=item $cf::RUNTIME	198	=item $cf::RUNTIME
88		199
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	201	every server tick.
91		202
92	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		206
94	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
96		211
97	=item $cf::NOW	212	=item $cf::NOW
98		213
99	The time of the last (current) server tick.	214	The time of the last (current) server tick.
100		215
101	=item $cf::TICK	216	=item $cf::TICK
102		217
103	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
104		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
105	=item %cf::CFG	230	=item %cf::CFG
106		231
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	233	from wherever your confdir points to.
109		234
		235	=item cf::wait_for_tick, cf::wait_for_tick_begin
		236
		237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		238	returns directly I<after> the tick processing (and consequently, can only wake one process
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
		252
110	=back	253	=back
111		254
112	=cut	255	=cut
113		256
114	BEGIN {	257	$Coro::State::WARNHOOK = sub {
115	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	258	my $msg = join "", @_;
117	utf8::encode $msg;
118		259
119	$msg .= "\n"	260	$msg .= "\n"
120	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
121		262
		263	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		264
122	LOG llevError, "cfperl: $msg";	265	LOG llevError, $msg;
123	};	266	};
124	}	267
		268	$Coro::State::DIEHOOK = sub {
		269	return unless $^S eq 0; # "eq", not "=="
		270
		271	warn Carp::longmess $_[0];
		272
		273	if (in_main) {#d#
		274	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		275	return;#d#
		276	}#d#
		277
		278	# kill coroutine otherwise
		279	Coro::terminate
		280	};
125		281
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	286	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		287	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	288	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		289
133	# we bless all objects into (empty) derived classes to force a method lookup	290	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	291	# within the Safe compartment.
135	for my $pkg (qw(	292	for my $pkg (qw(
136	cf::global cf::attachable	293	cf::global cf::attachable
137	cf::object cf::object::player	294	cf::object cf::object::player
138	cf::client cf::player	295	cf::client cf::player
139	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
140	cf::map cf::party cf::region	298	cf::party cf::region
141	)) {	299	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	301	}
145		302
146	$Event::DIED = sub {	303	$EV::DIED = sub {
147	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
148	};	305	};
149		306
150	my %ext_pkg;	307	#############################################################################
151	my @exts;
152	my @hook;
153		308
154	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
155		310
156	=over 4	311	=over 4
157		312
158	=cut	313	=item dumpval $ref
159		314
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	315	=cut
161		316
		317	sub dumpval {
		318	eval {
		319	local $SIG{__DIE__};
		320	my $d;
		321	if (1) {
		322	$d = new Data::Dumper([$_[0]], ["*var"]);
		323	$d->Terse(1);
		324	$d->Indent(2);
		325	$d->Quotekeys(0);
		326	$d->Useqq(1);
		327	#$d->Bless(...);
		328	$d->Seen($_[1]) if @_ > 1;
		329	$d = $d->Dump();
		330	}
		331	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		332	$d
		333	} || "[unable to dump $_[0]: '$@']";
		334	}
		335
162	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
163		337
164	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
165		339
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
174		341
175	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
176		343
177	=cut	344	=cut
178		345
179	sub to_json($) {	346	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	347
181	JSON::Syck::Dump $_[0]	348	sub encode_json($) { $json_coder->encode ($_[0]) }
		349	sub decode_json($) { $json_coder->decode ($_[0]) }
		350
		351	=item cf::post_init { BLOCK }
		352
		353	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		354	but I<before> the server starts ticking again.
		355
		356	The cdoeblock will have a single boolean argument to indicate whether this
		357	is a reload or not.
		358
		359	=cut
		360
		361	sub post_init(&) {
		362	push @POST_INIT, shift;
182	}	363	}
183		364
184	=item cf::lock_wait $string	365	=item cf::lock_wait $string
185		366
186	Wait until the given lock is available. See cf::lock_acquire.	367	Wait until the given lock is available. See cf::lock_acquire.
187		368
188	=item my $lock = cf::lock_acquire $string	369	=item my $lock = cf::lock_acquire $string
189		370
190	Wait until the given lock is available and then acquires it and returns	371	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,	372	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	373	for example when the coroutine gets canceled), the lock is automatically
193	returned.	374	returned.
194		375
		376	Locks are *not* recursive, locking from the same coro twice results in a
		377	deadlocked coro.
		378
195	Lock names should begin with a unique identifier (for example, cf::map::find	379	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	380	uses map_find and cf::map::load uses map_load).
197		381
198	=cut	382	=item $locked = cf::lock_active $string
199		383
200	our %LOCK;	384	Return true if the lock is currently active, i.e. somebody has locked it.
		385
		386	=cut
		387
		388	our $LOCKS = new Coro::SemaphoreSet;
201		389
202	sub lock_wait($) {	390	sub lock_wait($) {
203	my ($key) = @_;	391	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	392	}
211		393
212	sub lock_acquire($) {	394	sub lock_acquire($) {
213	my ($key) = @_;	395	$LOCKS->guard ($_[0])
		396	}
214		397
215	# wait, to be sure we are not locked	398	sub lock_active($) {
216	lock_wait $key;	399	$LOCKS->count ($_[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	}	400	}
225		401
226	sub freeze_mainloop {	402	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	403	tick_inhibit_inc;
228		404
229	my $guard = Coro::guard { $TICK_WATCHER->start };	405	&Guard::guard (\&tick_inhibit_dec);
230	$TICK_WATCHER->stop;
231	$guard
232	}	406	}
		407
		408	=item cf::periodic $interval, $cb
		409
		410	Like EV::periodic, but randomly selects a starting point so that the actions
		411	get spread over time.
		412
		413	=cut
		414
		415	sub periodic($$) {
		416	my ($interval, $cb) = @_;
		417
		418	my $start = rand List::Util::min 180, $interval;
		419
		420	EV::periodic $start, $interval, 0, $cb
		421	}
		422
		423	=item cf::get_slot $time[, $priority[, $name]]
		424
		425	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		426	This call blocks and returns only when you have at least C<$time> seconds
		427	of cpu time till the next tick. The slot is only valid till the next cede.
		428
		429	The optional C<$name> can be used to identify the job to run. It might be
		430	used for statistical purposes and should identify the same time-class.
		431
		432	Useful for short background jobs.
		433
		434	=cut
		435
		436	our @SLOT_QUEUE;
		437	our $SLOT_QUEUE;
		438	our $SLOT_DECAY = 0.9;
		439
		440	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		441	$SLOT_QUEUE = Coro::async {
		442	$Coro::current->desc ("timeslot manager");
		443
		444	my $signal = new Coro::Signal;
		445	my $busy;
		446
		447	while () {
		448	next_job:
		449
		450	my $avail = cf::till_tick;
		451
		452	for (0 .. $#SLOT_QUEUE) {
		453	if ($SLOT_QUEUE[$_][0] <= $avail) {
		454	$busy = 0;
		455	my $job = splice @SLOT_QUEUE, $_, 1, ();
		456	$job->[2]->send;
		457	Coro::cede;
		458	goto next_job;
		459	} else {
		460	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		461	}
		462	}
		463
		464	if (@SLOT_QUEUE) {
		465	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		466	push @cf::WAIT_FOR_TICK, $signal;
		467	$signal->wait;
		468	} else {
		469	$busy = 0;
		470	Coro::schedule;
		471	}
		472	}
		473	};
		474
		475	sub get_slot($;$$) {
		476	return if tick_inhibit || $Coro::current == $Coro::main;
		477
		478	my ($time, $pri, $name) = @_;
		479
		480	$time = clamp $time, 0.01, $TICK * .6;
		481
		482	my $sig = new Coro::Signal;
		483
		484	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		485	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		486	$SLOT_QUEUE->ready;
		487	$sig->wait;
		488	}
		489
		490	=item cf::async { BLOCK }
		491
		492	Currently the same as Coro::async_pool, meaning you cannot use
		493	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		494	thing you are allowed to do is call C<prio> on it.
		495
		496	=cut
		497
		498	BEGIN { *async = \&Coro::async_pool }
233		499
234	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
235		501
236	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
237	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
238	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
239		506
240	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
241	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
242	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
243	fast or be very important.	510	fast or be very important.
…		…
246		513
247	sub sync_job(&) {	514	sub sync_job(&) {
248	my ($job) = @_;	515	my ($job) = @_;
249		516
250	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
		518	my $time = AE::time;
		519
251	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
253		522
254	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
255	# (but this is cancel-safe)	524
256	my $freeze_guard = freeze_mainloop;	525	my $freeze_guard = freeze_mainloop;
257		526
258	my $busy = 1;	527	my $busy = 1;
259	my @res;	528	my @res;
260		529
261	(Coro::async_pool {	530	(async {
		531	$Coro::current->desc ("sync job coro");
262	@res = eval { $job->() };	532	@res = eval { $job->() };
263	warn $@ if $@;	533	warn $@ if $@;
264	undef $busy;	534	undef $busy;
265	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
266		536
267	while ($busy) {	537	while ($busy) {
		538	if (Coro::nready) {
268	Coro::cede_notself;	539	Coro::cede_notself;
269	Event::one_event unless Coro::nready;	540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
270	}	542	}
		543	}
		544
		545	my $time = AE::time - $time;
		546
		547	$TICK_START += $time; # do not account sync jobs to server load
271		548
272	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
273	} else {	550	} else {
274	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
275		552
276	$job->()	553	$job->()
277	}	554	}
278	}	555	}
279		556
280	=item $coro = cf::coro { BLOCK }	557	=item $coro = cf::async_ext { BLOCK }
281		558
282	Creates (and readies) and returns a new coro. This coro is automcatially	559	Like async, but this coro is automatically being canceled when the
283	being canceled when the extension calling this is being unloaded.	560	extension calling this is being unloaded.
284		561
285	=cut	562	=cut
286		563
287	sub coro(&) {	564	sub async_ext(&) {
288	my $cb = shift;	565	my $cb = shift;
289		566
290	my $coro = &Coro::async_pool ($cb);	567	my $coro = &Coro::async ($cb);
291		568
292	$coro->on_destroy (sub {	569	$coro->on_destroy (sub {
293	delete $EXT_CORO{$coro+0};	570	delete $EXT_CORO{$coro+0};
294	});	571	});
295	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
296		573
297	$coro	574	$coro
298	}	575	}
299		576
300	sub write_runtime {	577	=item fork_call { }, $args
301	my $runtime = cf::localdir . "/runtime";
302		578
303	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	579	Executes the given code block with the given arguments in a seperate
304	or return;	580	process, returning the results. Everything must be serialisable with
		581	Coro::Storable. May, of course, block. Note that the executed sub may
		582	never block itself or use any form of event handling.
305		583
306	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	584	=cut
307	(aio_write $fh, 0, (length $value), $value, 0) <= 0
308	and return;
309		585
310	aio_fsync $fh	586	sub fork_call(&@) {
311	and return;	587	my ($cb, @args) = @_;
312		588
313	close $fh	589	# we seemingly have to make a local copy of the whole thing,
314	or return;	590	# otherwise perl prematurely frees the stuff :/
		591	# TODO: investigate and fix (likely this will be rather laborious)
315		592
316	aio_rename "$runtime~", $runtime	593	my @res = Coro::Util::fork_eval {
317	and return;	594	reset_signals;
		595	&$cb
		596	}, @args;
318		597
		598	wantarray ? @res : $res[-1]
		599	}
		600
		601	sub objinfo {
319	1	602	(
		603	"counter value" => cf::object::object_count,
		604	"objects created" => cf::object::create_count,
		605	"objects destroyed" => cf::object::destroy_count,
		606	"freelist size" => cf::object::free_count,
		607	"allocated objects" => cf::object::objects_size,
		608	"active objects" => cf::object::actives_size,
		609	)
		610	}
		611
		612	=item $coin = coin_from_name $name
		613
		614	=cut
		615
		616	our %coin_alias = (
		617	"silver" => "silvercoin",
		618	"silvercoin" => "silvercoin",
		619	"silvercoins" => "silvercoin",
		620	"gold" => "goldcoin",
		621	"goldcoin" => "goldcoin",
		622	"goldcoins" => "goldcoin",
		623	"platinum" => "platinacoin",
		624	"platinumcoin" => "platinacoin",
		625	"platinumcoins" => "platinacoin",
		626	"platina" => "platinacoin",
		627	"platinacoin" => "platinacoin",
		628	"platinacoins" => "platinacoin",
		629	"royalty" => "royalty",
		630	"royalties" => "royalty",
		631	);
		632
		633	sub coin_from_name($) {
		634	$coin_alias{$_[0]}
		635	? cf::arch::find $coin_alias{$_[0]}
		636	: undef
		637	}
		638
		639	=item $value = cf::db_get $family => $key
		640
		641	Returns a single value from the environment database.
		642
		643	=item cf::db_put $family => $key => $value
		644
		645	Stores the given C<$value> in the family. It can currently store binary
		646	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		647
		648	=item $db = cf::db_table "name"
		649
		650	Create and/or open a new database table. The string must not be "db" and must be unique
		651	within each server.
		652
		653	=cut
		654
		655	sub db_table($) {
		656	my ($name) = @_;
		657	my $db = BDB::db_create $DB_ENV;
		658
		659	eval {
		660	$db->set_flags (BDB::CHKSUM);
		661
		662	utf8::encode $name;
		663	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		664	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		665	cf::cleanup "db_open(db): $!" if $!;
		666	};
		667	cf::cleanup "db_open(db): $@" if $@;
		668
		669	$db
		670	}
		671
		672	our $DB;
		673
		674	sub db_init {
		675	cf::sync_job {
		676	$DB ||= db_table "db";
		677	};
		678	}
		679
		680	sub db_get($$) {
		681	my $key = "$_[0]/$_[1]";
		682
		683	cf::sync_job {
		684	BDB::db_get $DB, undef, $key, my $data;
		685
		686	$! ? ()
		687	: $data
		688	}
		689	}
		690
		691	sub db_put($$$) {
		692	BDB::dbreq_pri 4;
		693	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		694	}
		695
		696	=item cf::cache $id => [$paths...], $processversion => $process
		697
		698	Generic caching function that returns the value of the resource $id,
		699	caching and regenerating as required.
		700
		701	This function can block.
		702
		703	=cut
		704
		705	sub cache {
		706	my ($id, $src, $processversion, $process) = @_;
		707
		708	my $meta =
		709	join "\x00",
		710	$processversion,
		711	map {
		712	aio_stat $_
		713	and Carp::croak "$_: $!";
		714
		715	($_, (stat _)[7,9])
		716	} @$src;
		717
		718	my $dbmeta = db_get cache => "$id/meta";
		719	if ($dbmeta ne $meta) {
		720	# changed, we may need to process
		721
		722	my @data;
		723	my $md5;
		724
		725	for (0 .. $#$src) {
		726	0 <= aio_load $src->[$_], $data[$_]
		727	or Carp::croak "$src->[$_]: $!";
		728	}
		729
		730	# if processing is expensive, check
		731	# checksum first
		732	if (1) {
		733	$md5 =
		734	join "\x00",
		735	$processversion,
		736	map {
		737	cf::cede_to_tick;
		738	($src->[$_], Digest::MD5::md5_hex $data[$_])
		739	} 0.. $#$src;
		740
		741
		742	my $dbmd5 = db_get cache => "$id/md5";
		743	if ($dbmd5 eq $md5) {
		744	db_put cache => "$id/meta", $meta;
		745
		746	return db_get cache => "$id/data";
		747	}
		748	}
		749
		750	my $t1 = Time::HiRes::time;
		751	my $data = $process->(\@data);
		752	my $t2 = Time::HiRes::time;
		753
		754	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		755
		756	db_put cache => "$id/data", $data;
		757	db_put cache => "$id/md5" , $md5;
		758	db_put cache => "$id/meta", $meta;
		759
		760	return $data;
		761	}
		762
		763	db_get cache => "$id/data"
		764	}
		765
		766	=item cf::datalog type => key => value, ...
		767
		768	Log a datalog packet of the given type with the given key-value pairs.
		769
		770	=cut
		771
		772	sub datalog($@) {
		773	my ($type, %kv) = @_;
		774	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
320	}	775	}
321		776
322	=back	777	=back
323		778
324	=cut	779	=cut
325		780
326	#############################################################################	781	#############################################################################
327		782
328	package cf::path;
329
330	sub new {
331	my ($class, $path, $base) = @_;
332
333	$path = $path->as_string if ref $path;
334
335	my $self = bless { }, $class;
336
337	# {... are special paths that are not touched
338	# ?xxx/... are special absolute paths
339	# ?random/... random maps
340	# /! non-realised random map exit
341	# /... normal maps
342	# ~/... per-player maps without a specific player (DO NOT USE)
343	# ~user/... per-player map of a specific user
344
345	if ($path =~ /^{/) {
346	# fine as it is
347	} elsif ($path =~ s{^\?random/}{}) {
348	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
349	$self->{random} = cf::from_json $data;
350	} else {
351	if ($path =~ s{^~([^/]+)?}{}) {
352	$self->{user_rel} = 1;
353
354	if (defined $1) {
355	$self->{user} = $1;
356	} elsif ($base =~ m{^~([^/]+)/}) {
357	$self->{user} = $1;
358	} else {
359	warn "cannot resolve user-relative path without user <$path,$base>\n";
360	}
361	} elsif ($path =~ /^\//) {
362	# already absolute
363	} else {
364	$base =~ s{[^/]+/?$}{};
365	return $class->new ("$base/$path");
366	}
367
368	for ($path) {
369	redo if s{/\.?/}{/};
370	redo if s{/[^/]+/\.\./}{/};
371	}
372	}
373
374	$self->{path} = $path;
375
376	$self
377	}
378
379	# the name / primary key / in-game path
380	sub as_string {
381	my ($self) = @_;
382
383	$self->{user_rel} ? "~$self->{user}$self->{path}"
384	: $self->{random} ? "?random/$self->{path}"
385	: $self->{path}
386	}
387
388	# the displayed name, this is a one way mapping
389	sub visible_name {
390	my ($self) = @_;
391
392	# if (my $rmp = $self->{random}) {
393	# # todo: be more intelligent about this
394	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
395	# } else {
396	$self->as_string
397	# }
398	}
399
400	# escape the /'s in the path
401	sub _escaped_path {
402	# ∕ is U+2215
403	(my $path = $_[0]{path}) =~ s/\//∕/g;
404	$path
405	}
406
407	# the original (read-only) location
408	sub load_path {
409	my ($self) = @_;
410
411	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
412	}
413
414	# the temporary/swap location
415	sub save_path {
416	my ($self) = @_;
417
418	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
419	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
420	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
421	}
422
423	# the unique path, might be eq to save_path
424	sub uniq_path {
425	my ($self) = @_;
426
427	$self->{user_rel} || $self->{random}
428	? undef
429	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
430	}
431
432	# return random map parameters, or undef
433	sub random_map_params {
434	my ($self) = @_;
435
436	$self->{random}
437	}
438
439	# this is somewhat ugly, but style maps do need special treatment
440	sub is_style_map {
441	$_[0]{path} =~ m{^/styles/}
442	}
443
444	package cf;
445
446	#############################################################################
447
448	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
449		784
450	Many objects in crossfire are so-called attachable objects. That means you can	785	Many objects in deliantra are so-called attachable objects. That means you can
451	attach callbacks/event handlers (a collection of which is called an "attachment")	786	attach callbacks/event handlers (a collection of which is called an "attachment")
452	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
453		788
454	In the following description, CLASS can be any of C<global>, C<object>	789	In the following description, CLASS can be any of C<global>, C<object>
455	C<player>, C<client> or C<map> (i.e. the attachable objects in	790	C<player>, C<client> or C<map> (i.e. the attachable objects in
456	crossfire+).	791	Deliantra).
457		792
458	=over 4	793	=over 4
459		794
460	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
461		796
…		…
505	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
506		841
507	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
508	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
509		844
510	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
511	that are attached at load/instantiate time, thus the need for a name.	846	that are attached at load/instantiate time, thus the need for a name.
512		847
513	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
514		849
515	=over 4	850	=over 4
…		…
575	our @CB_TYPE = (); # registry for type (cf-object class) based events	910	our @CB_TYPE = (); # registry for type (cf-object class) based events
576	our @CB_MAP = ();	911	our @CB_MAP = ();
577		912
578	my %attachment;	913	my %attachment;
579		914
		915	sub cf::attachable::thawer_merge {
		916	# simply override everything except _meta
		917	local $_[0]{_meta};
		918	%{$_[0]} = %{$_[1]};
		919	}
		920
580	sub _attach_cb($$$$) {	921	sub _attach_cb($$$$) {
581	my ($registry, $event, $prio, $cb) = @_;	922	my ($registry, $event, $prio, $cb) = @_;
582		923
583	use sort 'stable';	924	use sort 'stable';
584		925
…		…
618	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
619		960
620	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
621	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
622	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
623	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
624		965
625	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
626	my $pkg = shift @arg;	967	my $pkg = shift @arg;
627		968
628	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
657	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
658	}	999	}
659		1000
660	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
661	} else {	1002	} else {
662	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
663	}	1004	}
664		1005
665	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
666	}	1007	}
667		1008
…		…
669	if (ref $_[0]) {	1010	if (ref $_[0]) {
670	_object_attach @_;	1011	_object_attach @_;
671	} else {	1012	} else {
672	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
673	}	1014	}
		1015	_recalc_want;
674	};	1016	};
675		1017
676	# all those should be optimised	1018	# all those should be optimised
677	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
678	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
681	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
682	reattach ($obj);	1024	reattach ($obj);
683	} else {	1025	} else {
684	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
685	}	1027	}
		1028	_recalc_want;
686	};	1029	};
687		1030
688	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
689	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
690		1033
…		…
705	";	1048	";
706	die if $@;	1049	die if $@;
707	}	1050	}
708		1051
709	our $override;	1052	our $override;
710	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1053	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
711		1054
712	sub override {	1055	sub override {
713	$override = 1;	1056	$override = 1;
714	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
715	}	1058	}
716		1059
717	sub do_invoke {	1060	sub do_invoke {
718	my $event = shift;	1061	my $event = shift;
719	my $callbacks = shift;	1062	my $callbacks = shift;
720		1063
721	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
722		1065
723	local $override;	1066	local $override;
724		1067
725	for (@$callbacks) {	1068	for (@$callbacks) {
726	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
735	}	1078	}
736		1079
737	0	1080	0
738	}	1081	}
739		1082
740	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
741		1084
742	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
743		1086
744	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
745		1088
746	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1089	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
747	removed in future versions), and there is no public API to access override	1090	removed in future versions), and there is no public API to access override
748	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
749		1092
750	=back	1093	=back
751		1094
752	=cut	1095	=cut
753		1096
754	#############################################################################	1097	#############################################################################
755	# object support	1098	# object support
		1099
		1100	sub _object_equal($$);
		1101	sub _object_equal($$) {
		1102	my ($a, $b) = @_;
		1103
		1104	return 0 unless (ref $a) eq (ref $b);
		1105
		1106	if ("HASH" eq ref $a) {
		1107	my @ka = keys %$a;
		1108	my @kb = keys %$b;
		1109
		1110	return 0 if @ka != @kb;
		1111
		1112	for (0 .. $#ka) {
		1113	return 0 unless $ka[$_] eq $kb[$_];
		1114	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1115	}
		1116
		1117	} elsif ("ARRAY" eq ref $a) {
		1118
		1119	return 0 if @$a != @$b;
		1120
		1121	for (0 .. $#$a) {
		1122	return 0 unless _object_equal $a->[$_], $b->[$_];
		1123	}
		1124
		1125	} elsif ($a ne $b) {
		1126	return 0;
		1127	}
		1128
		1129	1
		1130	}
		1131
		1132	our $SLOW_MERGES;#d#
		1133	sub _can_merge {
		1134	my ($ob1, $ob2) = @_;
		1135
		1136	++$SLOW_MERGES;#d#
		1137
		1138	# we do the slow way here
		1139	return _object_equal $ob1, $ob2
		1140	}
756		1141
757	sub reattach {	1142	sub reattach {
758	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
759	my ($obj) = @_;	1144	my ($obj) = @_;
		1145
		1146	# no longer needed after getting rid of delete_package?
		1147	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
760		1148
761	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
762		1150
763	@$registry = ();	1151	@$registry = ();
764		1152
…		…
779	cf::attachable->attach (	1167	cf::attachable->attach (
780	prio => -1000000,	1168	prio => -1000000,
781	on_instantiate => sub {	1169	on_instantiate => sub {
782	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
783		1171
784	$data = from_json $data;	1172	$data = decode_json $data;
785		1173
786	for (@$data) {	1174	for (@$data) {
787	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
788		1176
789	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
805	sub object_freezer_save {	1193	sub object_freezer_save {
806	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
807		1195
808	sync_job {	1196	sync_job {
809	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
810	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
811	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
812		1202
813	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
814	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
815	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1205	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1206	if ($cf::USE_FSYNC) {
		1207	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;
816	aio_fsync $fh;	1208	aio_fsync $fh;
		1209	}
817	close $fh;	1210	aio_close $fh;
818		1211
819	if (@$objs) {	1212	if (@$objs) {
820	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1213	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
821	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
822	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
823	aio_write $fh, 0, (length $data), $data, 0;	1216	aio_write $fh, 0, (length $data), $data, 0;
		1217	if ($cf::USE_FSYNC) {
		1218	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;
824	aio_fsync $fh;	1219	aio_fsync $fh;
		1220	}
825	close $fh;	1221	aio_close $fh;
826	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
827	}	1223	}
828	} else {	1224	} else {
829	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
830	}	1226	}
831		1227
832	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
833	} else {	1232	} else {
834	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
835	}	1234	}
836	} else {	1235	} else {
837	aio_unlink $filename;	1236	aio_unlink $filename;
838	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
839	}	1238	}
840	}	1239	};
841	}	1240	}
842		1241
843	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
844	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
845		1244
…		…
857	or return;	1256	or return;
858		1257
859	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
860	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
861	or return;	1260	or return;
		1261
862	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
863	}	1264	}
864		1265
		1266	utf8::decode (my $decname = $filename);
865	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
866	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
867	return ($data, $av);	1271	($data, $av)
868	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
869		1279
870	#############################################################################	1280	#############################################################################
871	# command handling &c	1281	# command handling &c
872		1282
873	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
886	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
887	}	1297	}
888		1298
889	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
890		1300
891	Register a callbackf ro execution when the client sends an extcmd packet.	1301	Register a callback for execution when the client sends an (synchronous)
		1302	extcmd packet. Ext commands will be processed in the order they are
		1303	received by the server, like other user commands. The first argument is
		1304	the logged-in player. Ext commands can only be processed after a player
		1305	has logged in successfully.
892		1306
893	If the callback returns something, it is sent back as if reply was being	1307	If the callback returns something, it is sent back as if reply was being
894	called.	1308	called.
895		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
896	=cut	1321	=cut
897		1322
898	sub register_extcmd {	1323	sub register_extcmd {
899	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
900		1325
901	my $caller = caller;
902	#warn "registering extcmd '$name' to '$caller'";
903
904	$EXTCMD{$name} = [$cb, $caller];	1326	$EXTCMD{$name} = $cb;
905	}	1327	}
		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
906		1336
907	cf::player->attach (	1337	cf::player->attach (
908	on_command => sub {	1338	on_unknown_command => sub {
909	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
910		1340
911	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
912	or return;	1342	or return;
913		1343
…		…
918	cf::override;	1348	cf::override;
919	},	1349	},
920	on_extcmd => sub {	1350	on_extcmd => sub {
921	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
922		1352
923	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
924		1354
925	if (ref $msg) {	1355	if (ref $msg) {
		1356	my ($type, $reply, @payload) =
		1357	"ARRAY" eq ref $msg
		1358	? @$msg
		1359	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1360
		1361	my @reply;
		1362
926	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
927	if (my %reply = $cb->[0]->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
928	$pl->ext_reply ($msg->{msgid}, %reply);
929	}
930	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
931	} else {	1370	} else {
932	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
933	}	1372	}
934		1373
935	cf::override;	1374	cf::override;
936	},	1375	},
937	);	1376	);
938		1377
939	sub register {	1378	# "readahead" all extensions
940	my ($base, $pkg) = @_;
941
942	#TODO
943	}
944
945	sub load_extension {	1379	sub cache_extensions {
946	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
947		1381
948	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
949	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
950	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
951	$pkg =~ s/[^[:word:]]/_/g;
952	$pkg = "ext::$pkg";
953
954	warn "loading '$path' into '$pkg'\n";
955
956	open my $fh, "<:utf8", $path
957	or die "$path: $!";
958
959	my $source =
960	"package $pkg; use strict; use utf8;\n"
961	. "#line 1 \"$path\"\n{\n"
962	. (do { local $/; <$fh> })
963	. "\n};\n1";
964
965	eval $source
966	or die $@ ? "$path: $@\n"
967	: "extension disabled.\n";
968
969	push @exts, $pkg;
970	$ext_pkg{$base} = $pkg;
971
972	# no strict 'refs';
973	# @{"$pkg\::ISA"} = ext::;
974
975	register $base, $pkg;
976	}
977
978	sub unload_extension {
979	my ($pkg) = @_;
980
981	warn "removing extension $pkg\n";
982
983	# remove hooks
984	#TODO
985	# for my $idx (0 .. $#PLUGIN_EVENT) {
986	# delete $hook[$idx]{$pkg};
987	# }
988
989	# remove commands
990	for my $name (keys %COMMAND) {
991	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
992
993	if (@cb) {
994	$COMMAND{$name} = \@cb;
995	} else {
996	delete $COMMAND{$name};
997	}	1385	}
998	}	1386	};
999		1387
1000	# remove extcmds	1388	$grp
1001	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1002	delete $EXTCMD{$name};
1003	}
1004
1005	if (my $cb = $pkg->can ("unload")) {
1006	eval {
1007	$cb->($pkg);
1008	1
1009	} or warn "$pkg unloaded, but with errors: $@";
1010	}
1011
1012	Symbol::delete_package $pkg;
1013	}	1389	}
1014		1390
1015	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
1016	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
1017	next unless -r $ext;	1396	next unless -r $path;
1018	eval {	1397
1019	load_extension $ext;	1398	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1399	my $base = $1;
		1400	my $pkg = $1;
		1401	$pkg =~ s/[^[:word:]]/_/g;
		1402	$pkg = "ext::$pkg";
		1403
		1404	open my $fh, "<:utf8", $path
		1405	or die "$path: $!";
		1406
		1407	my $source = do { local $/; <$fh> };
		1408
		1409	my %ext = (
		1410	path => $path,
		1411	base => $base,
		1412	pkg => $pkg,
		1413	);
		1414
		1415	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1416	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1417
		1418	$ext{source} =
		1419	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1420	. "#line 1 \"$path\"\n{\n"
		1421	. $source
		1422	. "\n};\n1";
		1423
		1424	$todo{$base} = \%ext;
		1425	}
		1426
		1427	my $pass = 0;
		1428	my %done;
		1429	while (%todo) {
		1430	my $progress;
		1431
		1432	++$pass;
		1433
		1434	ext:
		1435	while (my ($k, $v) = each %todo) {
		1436	for (split /,\s*/, $v->{meta}{depends}) {
		1437	next ext
		1438	unless exists $done{$_};
		1439	}
		1440
		1441	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1442
		1443	my $active = eval $v->{source};
		1444
		1445	if (length $@) {
		1446	warn "$v->{path}: $@\n";
		1447
		1448	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1449	if exists $v->{meta}{mandatory};
		1450
		1451	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1452	delete $todo{$k};
		1453	} else {
		1454	$done{$k} = delete $todo{$k};
		1455	push @EXTS, $v->{pkg};
		1456	$progress = 1;
		1457
		1458	warn "$v->{base}: extension inactive.\n"
		1459	unless $active;
		1460	}
1020	1	1461	}
1021	} or warn "$ext not loaded: $@";	1462
		1463	unless ($progress) {
		1464	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1465
		1466	while (my ($k, $v) = each %todo) {
		1467	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1468	if exists $v->{meta}{mandatory};
		1469	}
		1470	}
		1471	}
1022	}	1472	};
1023	}	1473	}
1024		1474
1025	#############################################################################	1475	#############################################################################
1026	# load/save/clean perl data associated with a map
1027		1476
1028	*cf::mapsupport::on_clean = sub {	1477	=back
		1478
		1479	=head2 CORE EXTENSIONS
		1480
		1481	Functions and methods that extend core deliantra objects.
		1482
		1483	=cut
		1484
		1485	package cf::player;
		1486
		1487	use Coro::AIO;
		1488
		1489	=head3 cf::player
		1490
		1491	=over 4
		1492
		1493	=item cf::player::num_playing
		1494
		1495	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1496
		1497	=cut
		1498
		1499	sub num_playing {
		1500	scalar grep
		1501	$_->ob->map
		1502	&& !$_->hidden
		1503	&& !$_->ob->flag (cf::FLAG_WIZ),
		1504	cf::player::list
		1505	}
		1506
		1507	=item cf::player::find $login
		1508
		1509	Returns the given player object, loading it if necessary (might block).
		1510
		1511	=cut
		1512
		1513	sub playerdir($) {
		1514	"$PLAYERDIR/"
		1515	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1516	}
		1517
		1518	sub path($) {
		1519	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1520
		1521	(playerdir $login) . "/playerdata"
		1522	}
		1523
		1524	sub find_active($) {
		1525	$cf::PLAYER{$_[0]}
		1526	and $cf::PLAYER{$_[0]}->active
		1527	and $cf::PLAYER{$_[0]}
		1528	}
		1529
		1530	sub exists($) {
1029	my ($map) = @_;	1531	my ($login) = @_;
1030		1532
1031	my $path = $map->tmpname;	1533	$cf::PLAYER{$login}
1032	defined $path or return;	1534	or !aio_stat path $login
1033
1034	unlink "$path.pst";
1035	};
1036
1037	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1038
1039	#############################################################################
1040	# load/save perl data associated with player->ob objects
1041
1042	sub all_objects(@) {
1043	@_, map all_objects ($_->inv), @_
1044	}	1535	}
1045		1536
1046	# TODO: compatibility cruft, remove when no longer needed	1537	sub find($) {
		1538	return $cf::PLAYER{$_[0]} || do {
		1539	my $login = $_[0];
		1540
		1541	my $guard = cf::lock_acquire "user_find:$login";
		1542
		1543	$cf::PLAYER{$_[0]} || do {
		1544	# rename old playerfiles to new ones
		1545	#TODO: remove when no longer required
		1546	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1547	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1548	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1549	aio_unlink +(playerdir $login) . "/$login.pl";
		1550
		1551	my $f = new_from_file cf::object::thawer path $login
		1552	or return;
		1553
		1554	my $pl = cf::player::load_pl $f
		1555	or return;
		1556
		1557	local $cf::PLAYER_LOADING{$login} = $pl;
		1558	$f->resolve_delayed_derefs;
		1559	$cf::PLAYER{$login} = $pl
		1560	}
		1561	}
		1562	}
		1563
1047	cf::player->attach (	1564	cf::player->attach (
1048	on_load => sub {	1565	on_load => sub {
1049	my ($pl, $path) = @_;	1566	my ($pl, $path) = @_;
1050		1567
1051	for my $o (all_objects $pl->ob) {	1568	# restore slots saved in save, below
1052	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1569	my $slots = delete $pl->{_slots};
1053	$o->set_ob_key_value ("_perl_data");
1054		1570
1055	%$o = %{ Storable::thaw pack "H*", $value };	1571	$pl->ob->current_weapon ($slots->[0]);
1056	}	1572	$pl->combat_ob ($slots->[1]);
1057	}	1573	$pl->ranged_ob ($slots->[2]);
1058	},	1574	},
1059	);	1575	);
1060		1576
1061	#############################################################################	1577	sub save($) {
		1578	my ($pl) = @_;
1062		1579
1063	=head2 CORE EXTENSIONS	1580	return if $pl->{deny_save};
1064		1581
1065	Functions and methods that extend core crossfire objects.	1582	my $path = path $pl;
		1583	my $guard = cf::lock_acquire "user_save:$path";
1066		1584
1067	=head3 cf::player	1585	return if $pl->{deny_save};
		1586
		1587	aio_mkdir playerdir $pl, 0770;
		1588	$pl->{last_save} = $cf::RUNTIME;
		1589
		1590	cf::get_slot 0.01;
		1591
		1592	# save slots, to be restored later
		1593	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1594
		1595	$pl->save_pl ($path);
		1596	cf::cede_to_tick;
		1597	}
		1598
		1599	sub new($) {
		1600	my ($login) = @_;
		1601
		1602	my $self = create;
		1603
		1604	$self->ob->name ($login);
		1605	$self->{deny_save} = 1;
		1606
		1607	$cf::PLAYER{$login} = $self;
		1608
		1609	$self
		1610	}
		1611
		1612	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1613
		1614	=cut
		1615
		1616	sub send_msg {
		1617	my $ns = shift->ns
		1618	or return;
		1619	$ns->send_msg (@_);
		1620	}
		1621
		1622	=item $pl->quit_character
		1623
		1624	Nukes the player without looking back. If logged in, the connection will
		1625	be destroyed. May block for a long time.
		1626
		1627	=cut
		1628
		1629	sub quit_character {
		1630	my ($pl) = @_;
		1631
		1632	my $name = $pl->ob->name;
		1633
		1634	$pl->{deny_save} = 1;
		1635	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1636
		1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1640	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1641	$pl->ns->destroy if $pl->ns;
		1642
		1643	my $path = playerdir $pl;
		1644	my $temp = "$path~$cf::RUNTIME~deleting~";
		1645	aio_rename $path, $temp;
		1646	delete $cf::PLAYER{$pl->ob->name};
		1647	$pl->destroy;
		1648
		1649	my $prefix = qr<^~\Q$name\E/>;
		1650
		1651	# nuke player maps
		1652	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1653
		1654	IO::AIO::aio_rmtree $temp;
		1655	}
		1656
		1657	=item $pl->kick
		1658
		1659	Kicks a player out of the game. This destroys the connection.
		1660
		1661	=cut
		1662
		1663	sub kick {
		1664	my ($pl, $kicker) = @_;
		1665
		1666	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1667	$pl->killer ("kicked");
		1668	$pl->ns->destroy;
		1669	}
		1670
		1671	=item cf::player::list_logins
		1672
		1673	Returns am arrayref of all valid playernames in the system, can take a
		1674	while and may block, so not sync_job-capable, ever.
		1675
		1676	=cut
		1677
		1678	sub list_logins {
		1679	my $dirs = aio_readdir $PLAYERDIR
		1680	or return [];
		1681
		1682	my @logins;
		1683
		1684	for my $login (@$dirs) {
		1685	my $path = path $login;
		1686
		1687	# a .pst is a dead give-away for a valid player
		1688	# if no pst file found, open and chekc for blocked users
		1689	if (aio_stat "$path.pst") {
		1690	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1691	aio_read $fh, 0, 512, my $buf, 0 or next;
		1692	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1693	}
		1694
		1695	utf8::decode $login;
		1696	push @logins, $login;
		1697	}
		1698
		1699	\@logins
		1700	}
		1701
		1702	=item $player->maps
		1703
		1704	=item cf::player::maps $login
		1705
		1706	Returns an arrayref of map paths that are private for this
		1707	player. May block.
		1708
		1709	=cut
		1710
		1711	sub maps($) {
		1712	my ($pl) = @_;
		1713
		1714	$pl = ref $pl ? $pl->ob->name : $pl;
		1715
		1716	my $files = aio_readdir playerdir $pl
		1717	or return;
		1718
		1719	my @paths;
		1720
		1721	for (@$files) {
		1722	utf8::decode $_;
		1723	next if /\.(?:pl|pst)$/;
		1724	next unless /^$PATH_SEP/o;
		1725
		1726	push @paths, cf::map::normalise "~$pl/$_";
		1727	}
		1728
		1729	\@paths
		1730	}
		1731
		1732	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1733
		1734	Expand deliantra pod fragments into protocol xml.
		1735
		1736	=item $player->ext_reply ($msgid, @msg)
		1737
		1738	Sends an ext reply to the player.
		1739
		1740	=cut
		1741
		1742	sub ext_reply($$@) {
		1743	my ($self, $id, @msg) = @_;
		1744
		1745	$self->ns->ext_reply ($id, @msg)
		1746	}
		1747
		1748	=item $player->ext_msg ($type, @msg)
		1749
		1750	Sends an ext event to the client.
		1751
		1752	=cut
		1753
		1754	sub ext_msg($$@) {
		1755	my ($self, $type, @msg) = @_;
		1756
		1757	$self->ns->ext_msg ($type, @msg);
		1758	}
		1759
		1760	=head3 cf::region
1068		1761
1069	=over 4	1762	=over 4
1070		1763
1071	=item cf::player::exists $login
1072
1073	Returns true when the given account exists.
1074
1075	=cut	1764	=cut
1076		1765
1077	sub cf::player::exists($) {	1766	package cf::region;
1078	cf::player::find $_[0]
1079	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1080	}
1081		1767
1082	=item $player->ext_reply ($msgid, $msgtype, %msg)	1768	=item cf::region::find_by_path $path
1083		1769
1084	Sends an ext reply to the player.	1770	Tries to decuce the likely region for a map knowing only its path.
1085		1771
1086	=cut	1772	=cut
1087		1773
1088	sub cf::player::ext_reply($$$%) {	1774	sub find_by_path($) {
1089	my ($self, $id, %msg) = @_;	1775	my ($path) = @_;
1090		1776
1091	$msg{msgid} = $id;	1777	$path =~ s/^~[^\/]*//; # skip ~login
1092		1778
1093	$self->send ("ext " . to_json \%msg);	1779	my ($match, $specificity);
		1780
		1781	for my $region (list) {
		1782	if ($region->{match} && $path =~ $region->{match}) {
		1783	($match, $specificity) = ($region, $region->specificity)
		1784	if $region->specificity > $specificity;
		1785	}
		1786	}
		1787
		1788	$match
1094	}	1789	}
1095		1790
1096	=back	1791	=back
1097
1098		1792
1099	=head3 cf::map	1793	=head3 cf::map
1100		1794
1101	=over 4	1795	=over 4
1102		1796
…		…
1105	package cf::map;	1799	package cf::map;
1106		1800
1107	use Fcntl;	1801	use Fcntl;
1108	use Coro::AIO;	1802	use Coro::AIO;
1109		1803
		1804	use overload
		1805	'""' => \&as_string,
		1806	fallback => 1;
		1807
1110	our $MAX_RESET = 3600;	1808	our $MAX_RESET = 3600;
1111	our $DEFAULT_RESET = 3000;	1809	our $DEFAULT_RESET = 3000;
1112		1810
1113	sub generate_random_map {	1811	sub generate_random_map {
1114	my ($path, $rmp) = @_;	1812	my ($self, $rmp) = @_;
		1813
		1814	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1115		1815
1116	# mit "rum" bekleckern, nicht	1816	# mit "rum" bekleckern, nicht
1117	cf::map::_create_random_map	1817	$self->_create_random_map (
1118	$path,
1119	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1818	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1120	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1819	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1121	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1820	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1122	$rmp->{exit_on_final_map},	1821	$rmp->{exit_on_final_map},
1123	$rmp->{xsize}, $rmp->{ysize},	1822	$rmp->{xsize}, $rmp->{ysize},
1124	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1823	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1125	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1824	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1126	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1825	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1127	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1826	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1128	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1827	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1129	(cf::region::find $rmp->{region})	1828	(cf::region::find $rmp->{region}), $rmp->{custom}
		1829	)
1130	}	1830	}
1131		1831
1132	# and all this just because we cannot iterate over	1832	=item cf::map->register ($regex, $prio)
1133	# all maps in C++...
1134	sub change_all_map_light {
1135	my ($change) = @_;
1136		1833
1137	$_->change_map_light ($change)	1834	Register a handler for the map path matching the given regex at the
1138	for grep $_->outdoor, values %cf::MAP;	1835	givne priority (higher is better, built-in handlers have priority 0, the
1139	}	1836	default).
1140		1837
1141	sub try_load_header($) {	1838	=cut
		1839
		1840	sub register {
		1841	my (undef, $regex, $prio) = @_;
		1842	my $pkg = caller;
		1843
		1844	no strict;
		1845	push @{"$pkg\::ISA"}, __PACKAGE__;
		1846
		1847	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1848	}
		1849
		1850	# also paths starting with '/'
		1851	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1852
		1853	sub thawer_merge {
		1854	my ($self, $merge) = @_;
		1855
		1856	# we have to keep some variables in memory intact
		1857	local $self->{path};
		1858	local $self->{load_path};
		1859
		1860	$self->SUPER::thawer_merge ($merge);
		1861	}
		1862
		1863	sub normalise {
1142	my ($path) = @_;	1864	my ($path, $base) = @_;
		1865
		1866	$path = "$path"; # make sure its a string
		1867
		1868	$path =~ s/\.map$//;
		1869
		1870	# map plan:
		1871	#
		1872	# /! non-realised random map exit (special hack!)
		1873	# {... are special paths that are not being touched
		1874	# ?xxx/... are special absolute paths
		1875	# ?random/... random maps
		1876	# /... normal maps
		1877	# ~user/... per-player map of a specific user
		1878
		1879	$path =~ s/$PATH_SEP/\//go;
		1880
		1881	# treat it as relative path if it starts with
		1882	# something that looks reasonable
		1883	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1884	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1885
		1886	$base =~ s{[^/]+/?$}{};
		1887	$path = "$base/$path";
		1888	}
		1889
		1890	for ($path) {
		1891	redo if s{//}{/};
		1892	redo if s{/\.?/}{/};
		1893	redo if s{/[^/]+/\.\./}{/};
		1894	}
		1895
		1896	$path
		1897	}
		1898
		1899	sub new_from_path {
		1900	my (undef, $path, $base) = @_;
		1901
		1902	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1903
		1904	$path = normalise $path, $base;
		1905
		1906	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1907	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1908	my $self = bless cf::map::new, $pkg;
		1909	$self->{path} = $path; $self->path ($path);
		1910	$self->init; # pass $1 etc.
		1911	return $self;
		1912	}
		1913	}
		1914
		1915	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1916	()
		1917	}
		1918
		1919	sub init {
		1920	my ($self) = @_;
		1921
		1922	$self
		1923	}
		1924
		1925	sub as_string {
		1926	my ($self) = @_;
		1927
		1928	"$self->{path}"
		1929	}
		1930
		1931	# the displayed name, this is a one way mapping
		1932	sub visible_name {
		1933	&as_string
		1934	}
		1935
		1936	# the original (read-only) location
		1937	sub load_path {
		1938	my ($self) = @_;
		1939
		1940	"$MAPDIR/$self->{path}.map"
		1941	}
		1942
		1943	# the temporary/swap location
		1944	sub save_path {
		1945	my ($self) = @_;
		1946
		1947	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1948	"$TMPDIR/$path.map"
		1949	}
		1950
		1951	# the unique path, undef == no special unique path
		1952	sub uniq_path {
		1953	my ($self) = @_;
		1954
		1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1956	"$UNIQUEDIR/$path"
		1957	}
		1958
		1959	sub decay_objects {
		1960	my ($self) = @_;
		1961
		1962	return if $self->{deny_reset};
		1963
		1964	$self->do_decay_objects;
		1965	}
		1966
		1967	sub unlink_save {
		1968	my ($self) = @_;
		1969
		1970	utf8::encode (my $save = $self->save_path);
		1971	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1972	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1973	}
		1974
		1975	sub load_header_from($) {
		1976	my ($self, $path) = @_;
1143		1977
1144	utf8::encode $path;	1978	utf8::encode $path;
1145	aio_open $path, O_RDONLY, 0	1979	my $f = new_from_file cf::object::thawer $path
1146	or return;	1980	or return;
1147		1981
1148	my $map = cf::map::new	1982	$self->_load_header ($f)
1149	or return;	1983	or return;
1150		1984
1151	# for better error messages only, will be overwritten	1985	local $MAP_LOADING{$self->{path}} = $self;
1152	$map->path ($path);	1986	$f->resolve_delayed_derefs;
1153		1987
1154	$map->load_header ($path)	1988	$self->{load_path} = $path;
		1989
		1990	1
		1991	}
		1992
		1993	sub load_header_orig {
		1994	my ($self) = @_;
		1995
		1996	$self->load_header_from ($self->load_path)
		1997	}
		1998
		1999	sub load_header_temp {
		2000	my ($self) = @_;
		2001
		2002	$self->load_header_from ($self->save_path)
		2003	}
		2004
		2005	sub prepare_temp {
		2006	my ($self) = @_;
		2007
		2008	$self->last_access ((delete $self->{last_access})
		2009	|| $cf::RUNTIME); #d#
		2010	# safety
		2011	$self->{instantiate_time} = $cf::RUNTIME
		2012	if $self->{instantiate_time} > $cf::RUNTIME;
		2013	}
		2014
		2015	sub prepare_orig {
		2016	my ($self) = @_;
		2017
		2018	$self->{load_original} = 1;
		2019	$self->{instantiate_time} = $cf::RUNTIME;
		2020	$self->last_access ($cf::RUNTIME);
		2021	$self->instantiate;
		2022	}
		2023
		2024	sub load_header {
		2025	my ($self) = @_;
		2026
		2027	if ($self->load_header_temp) {
		2028	$self->prepare_temp;
		2029	} else {
		2030	$self->load_header_orig
1155	or return;	2031	or return;
		2032	$self->prepare_orig;
		2033	}
1156		2034
1157	$map->{load_path} = $path;	2035	$self->{deny_reset} = 1
		2036	if $self->no_reset;
1158		2037
1159	$map	2038	$self->default_region (cf::region::find_by_path $self->{path})
		2039	unless $self->default_region;
		2040
		2041	1
1160	}	2042	}
1161		2043
1162	sub find;	2044	sub find;
1163	sub find {	2045	sub find {
1164	my ($path, $origin) = @_;	2046	my ($path, $origin) = @_;
1165		2047
1166	#warn "find<$path,$origin>\n";#d#
1167
1168	$path = new cf::path $path, $origin && $origin->path;	2048	$path = normalise $path, $origin && $origin->path;
1169	my $key = $path->as_string;
1170		2049
1171	cf::lock_wait "map_find:$key";	2050	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1172
1173	$cf::MAP{$key} || do {
1174	my $guard = cf::lock_acquire "map_find:$key";	2051	my $guard2 = cf::lock_acquire "map_find:$path";
1175		2052
1176	# do it the slow way	2053	$cf::MAP{$path} || do {
1177	my $map = try_load_header $path->save_path;	2054	my $map = new_from_path cf::map $path
1178
1179	Coro::cede;
1180
1181	if ($map) {
1182	$map->last_access ((delete $map->{last_access})
1183	|| $cf::RUNTIME); #d#
1184	# safety
1185	$map->{instantiate_time} = $cf::RUNTIME
1186	if $map->{instantiate_time} > $cf::RUNTIME;
1187	} else {
1188	if (my $rmp = $path->random_map_params) {
1189	$map = generate_random_map $key, $rmp;
1190	} else {
1191	$map = try_load_header $path->load_path;
1192	}
1193
1194	$map or return;	2055	or return;
1195		2056
1196	$map->{load_original} = 1;
1197	$map->{instantiate_time} = $cf::RUNTIME;
1198	$map->last_access ($cf::RUNTIME);
1199	$map->instantiate;
1200
1201	# per-player maps become, after loading, normal maps
1202	$map->per_player (0) if $path->{user_rel};
1203	}
1204
1205	$map->path ($key);
1206	$map->{path} = $path;
1207	$map->{last_save} = $cf::RUNTIME;	2057	$map->{last_save} = $cf::RUNTIME;
1208		2058
1209	Coro::cede;	2059	$map->load_header
		2060	or return;
1210		2061
1211	if ($map->should_reset) {	2062	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2063	# doing this can freeze the server in a sync job, obviously
		2064	#$cf::WAIT_FOR_TICK->wait;
		2065	undef $guard2;
		2066	undef $guard1;
1212	$map->reset;	2067	$map->reset;
1213	undef $guard;
1214	$map = find $path	2068	return find $path;
1215	or return;
1216	}	2069	}
1217		2070
1218	$cf::MAP{$key} = $map	2071	$cf::MAP{$path} = $map
1219	}	2072	}
1220	}	2073	}
		2074
		2075	sub pre_load { }
		2076	#sub post_load { } # XS
1221		2077
1222	sub load {	2078	sub load {
1223	my ($self) = @_;	2079	my ($self) = @_;
1224		2080
		2081	local $self->{deny_reset} = 1; # loading can take a long time
		2082
1225	my $path = $self->{path};	2083	my $path = $self->{path};
		2084
		2085	{
1226	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2086	my $guard = cf::lock_acquire "map_data:$path";
1227		2087
		2088	return unless $self->valid;
1228	return if $self->in_memory != cf::MAP_SWAPPED;	2089	return unless $self->in_memory == cf::MAP_SWAPPED;
1229		2090
1230	$self->in_memory (cf::MAP_LOADING);	2091	$self->in_memory (cf::MAP_LOADING);
1231		2092
1232	$self->alloc;	2093	$self->alloc;
1233	$self->load_objects ($self->{load_path}, 1)	2094
		2095	$self->pre_load;
		2096	cf::cede_to_tick;
		2097
		2098	my $f = new_from_file cf::object::thawer $self->{load_path};
		2099	$f->skip_block;
		2100	$self->_load_objects ($f)
1234	or return;	2101	or return;
1235		2102
1236	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2103	$self->post_load_original
1237	if delete $self->{load_original};	2104	if delete $self->{load_original};
1238		2105
1239	if (my $uniq = $path->uniq_path) {	2106	if (my $uniq = $self->uniq_path) {
1240	utf8::encode $uniq;	2107	utf8::encode $uniq;
1241	if (aio_open $uniq, O_RDONLY, 0) {	2108	unless (aio_stat $uniq) {
		2109	if (my $f = new_from_file cf::object::thawer $uniq) {
1242	$self->clear_unique_items;	2110	$self->clear_unique_items;
1243	$self->load_objects ($uniq, 0);	2111	$self->_load_objects ($f);
		2112	$f->resolve_delayed_derefs;
		2113	}
1244	}	2114	}
1245	}	2115	}
1246		2116
1247	Coro::cede;	2117	$f->resolve_delayed_derefs;
1248		2118
		2119	cf::cede_to_tick;
1249	# now do the right thing for maps	2120	# now do the right thing for maps
1250	$self->link_multipart_objects;	2121	$self->link_multipart_objects;
1251
1252	if ($self->{path}->is_style_map) {
1253	$self->{deny_save} = 1;
1254	$self->{deny_reset} = 1;
1255	} else {
1256	$self->fix_auto_apply;
1257	$self->decay_objects;
1258	$self->update_buttons;
1259	$self->set_darkness_map;
1260	$self->difficulty ($self->estimate_difficulty)	2122	$self->difficulty ($self->estimate_difficulty)
1261	unless $self->difficulty;	2123	unless $self->difficulty;
		2124	cf::cede_to_tick;
		2125
		2126	unless ($self->{deny_activate}) {
		2127	$self->decay_objects;
		2128	$self->fix_auto_apply;
		2129	$self->update_buttons;
		2130	cf::cede_to_tick;
1262	$self->activate;	2131	$self->activate;
1263	}	2132	}
1264		2133
1265	Coro::cede;	2134	$self->{last_save} = $cf::RUNTIME;
		2135	$self->last_access ($cf::RUNTIME);
1266		2136
1267	$self->in_memory (cf::MAP_IN_MEMORY);	2137	$self->in_memory (cf::MAP_ACTIVE);
		2138	}
		2139
		2140	$self->post_load;
		2141	}
		2142
		2143	# customize the map for a given player, i.e.
		2144	# return the _real_ map. used by e.g. per-player
		2145	# maps to change the path to ~playername/mappath
		2146	sub customise_for {
		2147	my ($self, $ob) = @_;
		2148
		2149	return find "~" . $ob->name . "/" . $self->{path}
		2150	if $self->per_player;
		2151
		2152	# return find "?party/" . $ob->name . "/" . $self->{path}
		2153	# if $self->per_party;
		2154
		2155	$self
		2156	}
		2157
		2158	# find and load all maps in the 3x3 area around a map
		2159	sub load_neighbours {
		2160	my ($map) = @_;
		2161
		2162	my @neigh; # diagonal neighbours
		2163
		2164	for (0 .. 3) {
		2165	my $neigh = $map->tile_path ($_)
		2166	or next;
		2167	$neigh = find $neigh, $map
		2168	or next;
		2169	$neigh->load;
		2170
		2171	# now find the diagonal neighbours
		2172	push @neigh,
		2173	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2174	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2175	}
		2176
		2177	for (grep defined $_->[0], @neigh) {
		2178	my ($path, $origin) = @$_;
		2179	my $neigh = find $path, $origin
		2180	or next;
		2181	$neigh->load;
		2182	}
1268	}	2183	}
1269		2184
1270	sub find_sync {	2185	sub find_sync {
1271	my ($path, $origin) = @_;	2186	my ($path, $origin) = @_;
1272		2187
1273	cf::sync_job { cf::map::find $path, $origin }	2188	cf::sync_job { find $path, $origin }
1274	}	2189	}
1275		2190
1276	sub do_load_sync {	2191	sub do_load_sync {
1277	my ($map) = @_;	2192	my ($map) = @_;
1278		2193
		2194	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2195	if $Coro::current == $Coro::main;
		2196
1279	cf::sync_job { $map->load };	2197	cf::sync_job { $map->load };
		2198	}
		2199
		2200	our %MAP_PREFETCH;
		2201	our $MAP_PREFETCHER = undef;
		2202
		2203	sub find_async {
		2204	my ($path, $origin, $load) = @_;
		2205
		2206	$path = normalise $path, $origin && $origin->{path};
		2207
		2208	if (my $map = $cf::MAP{$path}) {
		2209	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2210	}
		2211
		2212	$MAP_PREFETCH{$path} |= $load;
		2213
		2214	$MAP_PREFETCHER ||= cf::async {
		2215	$Coro::current->{desc} = "map prefetcher";
		2216
		2217	while (%MAP_PREFETCH) {
		2218	while (my ($k, $v) = each %MAP_PREFETCH) {
		2219	if (my $map = find $k) {
		2220	$map->load if $v;
		2221	}
		2222
		2223	delete $MAP_PREFETCH{$k};
		2224	}
		2225	}
		2226	undef $MAP_PREFETCHER;
		2227	};
		2228	$MAP_PREFETCHER->prio (6);
		2229
		2230	()
		2231	}
		2232
		2233	# common code, used by both ->save and ->swapout
		2234	sub _save {
		2235	my ($self) = @_;
		2236
		2237	$self->{last_save} = $cf::RUNTIME;
		2238
		2239	return unless $self->dirty;
		2240
		2241	my $save = $self->save_path; utf8::encode $save;
		2242	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2243
		2244	$self->{load_path} = $save;
		2245
		2246	return if $self->{deny_save};
		2247
		2248	local $self->{last_access} = $self->last_access;#d#
		2249
		2250	cf::async {
		2251	$Coro::current->{desc} = "map player save";
		2252	$_->contr->save for $self->players;
		2253	};
		2254
		2255	cf::get_slot 0.02;
		2256
		2257	if ($uniq) {
		2258	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2259	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2260	} else {
		2261	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2262	}
1280	}	2263	}
1281		2264
1282	sub save {	2265	sub save {
1283	my ($self) = @_;	2266	my ($self) = @_;
1284		2267
1285	my $lock = cf::lock_acquire "map_data:" . $self->path;	2268	my $lock = cf::lock_acquire "map_data:$self->{path}";
1286		2269
1287	$self->{last_save} = $cf::RUNTIME;	2270	$self->_save;
1288
1289	return unless $self->dirty;
1290
1291	my $save = $self->{path}->save_path; utf8::encode $save;
1292	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1293
1294	$self->{load_path} = $save;
1295
1296	return if $self->{deny_save};
1297
1298	local $self->{last_access} = $self->last_access;#d#
1299
1300	if ($uniq) {
1301	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1302	$self->save_objects ($uniq, cf::IO_UNIQUES);
1303	} else {
1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1305	}
1306	}	2271	}
1307		2272
1308	sub swap_out {	2273	sub swap_out {
1309	my ($self) = @_;	2274	my ($self) = @_;
1310		2275
1311	# save first because save cedes
1312	$self->save;
1313
1314	my $lock = cf::lock_acquire "map_data:" . $self->path;	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1315		2277
		2278	return if $self->in_memory != cf::MAP_ACTIVE;
		2279	return if $self->{deny_save};
1316	return if $self->players;	2280	return if $self->players;
1317	return if $self->in_memory != cf::MAP_IN_MEMORY;
1318	return if $self->{deny_save};
1319		2281
		2282	# first deactivate the map and "unlink" it from the core
		2283	$self->deactivate;
		2284	$_->clear_links_to ($self) for values %cf::MAP;
		2285	$self->in_memory (cf::MAP_SWAPPED);
		2286
		2287	# then atomically save
		2288	$self->_save;
		2289
		2290	# then free the map
1320	$self->clear;	2291	$self->clear;
1321	$self->in_memory (cf::MAP_SWAPPED);
1322	}	2292	}
1323		2293
1324	sub reset_at {	2294	sub reset_at {
1325	my ($self) = @_;	2295	my ($self) = @_;
1326		2296
1327	# TODO: safety, remove and allow resettable per-player maps	2297	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};
1329	return 1e99 if $self->{deny_reset};	2298	return 1e99 if $self->{deny_reset};
1330		2299
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2300	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2301	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333		2302
…		…
1338	my ($self) = @_;	2307	my ($self) = @_;
1339		2308
1340	$self->reset_at <= $cf::RUNTIME	2309	$self->reset_at <= $cf::RUNTIME
1341	}	2310	}
1342		2311
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	2312	sub reset {
1365	my ($self) = @_;	2313	my ($self) = @_;
1366		2314
1367	my $lock = cf::lock_acquire "map_data:" . $self->path;	2315	my $lock = cf::lock_acquire "map_data:$self->{path}";
1368		2316
1369	return if $self->players;	2317	return if $self->players;
1370	return if $self->{path}{user_rel};#d#
1371		2318
1372	warn "resetting map ", $self->path;#d#	2319	warn "resetting map ", $self->path, "\n";
		2320
		2321	$self->in_memory (cf::MAP_SWAPPED);
		2322
		2323	# need to save uniques path
		2324	unless ($self->{deny_save}) {
		2325	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2326
		2327	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2328	if $uniq;
		2329	}
1373		2330
1374	delete $cf::MAP{$self->path};	2331	delete $cf::MAP{$self->path};
1375		2332
		2333	$self->deactivate;
1376	$_->clear_links_to ($self) for values %cf::MAP;	2334	$_->clear_links_to ($self) for values %cf::MAP;
		2335	$self->clear;
1377		2336
1378	$self->unlink_save;	2337	$self->unlink_save;
1379	$self->destroy;	2338	$self->destroy;
1380	}	2339	}
1381		2340
1382	my $nuke_counter = "aaaa";	2341	my $nuke_counter = "aaaa";
1383		2342
1384	sub nuke {	2343	sub nuke {
1385	my ($self) = @_;	2344	my ($self) = @_;
1386		2345
		2346	{
		2347	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2348
		2349	delete $cf::MAP{$self->path};
		2350
		2351	$self->unlink_save;
		2352
		2353	bless $self, "cf::map::wrap";
		2354	delete $self->{deny_reset};
1387	$self->{deny_save} = 1;	2355	$self->{deny_save} = 1;
1388	$self->reset_timeout (1);	2356	$self->reset_timeout (1);
1389	$self->rename ("{nuke}/" . ($nuke_counter++));	2357	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2358
		2359	$cf::MAP{$self->path} = $self;
		2360	}
		2361
1390	$self->reset; # polite request, might not happen	2362	$self->reset; # polite request, might not happen
1391	}	2363	}
1392		2364
1393	sub customise_for {	2365	=item $maps = cf::map::tmp_maps
1394	my ($map, $ob) = @_;
1395		2366
1396	if ($map->per_player) {	2367	Returns an arrayref with all map paths of currently instantiated and saved
1397	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2368	maps. May block.
		2369
		2370	=cut
		2371
		2372	sub tmp_maps() {
1398	}	2373	[
1399		2374	map {
1400	$map	2375	utf8::decode $_;
		2376	/\.map$/
		2377	? normalise $_
		2378	: ()
		2379	} @{ aio_readdir $TMPDIR or [] }
		2380	]
1401	}	2381	}
1402		2382
1403	sub emergency_save {	2383	=item $maps = cf::map::random_maps
1404	my $freeze_guard = cf::freeze_mainloop;
1405		2384
1406	warn "enter emergency map save\n";	2385	Returns an arrayref with all map paths of currently instantiated and saved
		2386	random maps. May block.
1407		2387
1408	cf::sync_job {	2388	=cut
1409	warn "begin emergency map save\n";	2389
1410	$_->save for values %cf::MAP;	2390	sub random_maps() {
		2391	[
		2392	map {
		2393	utf8::decode $_;
		2394	/\.map$/
		2395	? normalise "?random/$_"
		2396	: ()
		2397	} @{ aio_readdir $RANDOMDIR or [] }
		2398	]
		2399	}
		2400
		2401	=item cf::map::unique_maps
		2402
		2403	Returns an arrayref of paths of all shared maps that have
		2404	instantiated unique items. May block.
		2405
		2406	=cut
		2407
		2408	sub unique_maps() {
		2409	[
		2410	map {
		2411	utf8::decode $_;
		2412	s/\.map$//; # TODO future compatibility hack
		2413	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2414	? ()
		2415	: normalise $_
		2416	} @{ aio_readdir $UNIQUEDIR or [] }
		2417	]
		2418	}
		2419
		2420	=item cf::map::static_maps
		2421
		2422	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2423	file in the shared directory excluding F</styles> and F</editor>). May
		2424	block.
		2425
		2426	=cut
		2427
		2428	sub static_maps() {
		2429	my @dirs = "";
		2430	my @maps;
		2431
		2432	while (@dirs) {
		2433	my $dir = shift @dirs;
		2434
		2435	next if $dir eq "/styles" || $dir eq "/editor";
		2436
		2437	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2438	or return;
		2439
		2440	for (@$files) {
		2441	s/\.map$// or next;
		2442	utf8::decode $_;
		2443	push @maps, "$dir/$_";
		2444	}
		2445
		2446	push @dirs, map "$dir/$_", @$dirs;
1411	};	2447	}
1412		2448
1413	warn "end emergency map save\n";	2449	\@maps
		2450	}
		2451
		2452	=back
		2453
		2454	=head3 cf::object
		2455
		2456	=cut
		2457
		2458	package cf::object;
		2459
		2460	=over 4
		2461
		2462	=item $ob->inv_recursive
		2463
		2464	Returns the inventory of the object I<and> their inventories, recursively,
		2465	but I<not> the object itself.
		2466
		2467	=cut
		2468
		2469	sub inv_recursive_;
		2470	sub inv_recursive_ {
		2471	map { $_, inv_recursive_ $_->inv } @_
		2472	}
		2473
		2474	sub inv_recursive {
		2475	inv_recursive_ inv $_[0]
		2476	}
		2477
		2478	=item $ref = $ob->ref
		2479
		2480	Creates and returns a persistent reference to an object that can be stored as a string.
		2481
		2482	=item $ob = cf::object::deref ($refstring)
		2483
		2484	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2485	even if the object actually exists. May block.
		2486
		2487	=cut
		2488
		2489	sub deref {
		2490	my ($ref) = @_;
		2491
		2492	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2493	my ($uuid, $name) = ($1, $2);
		2494	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2495	or return;
		2496	$pl->ob->uuid eq $uuid
		2497	or return;
		2498
		2499	$pl->ob
		2500	} else {
		2501	warn "$ref: cannot resolve object reference\n";
		2502	undef
		2503	}
1414	}	2504	}
1415		2505
1416	package cf;	2506	package cf;
1417		2507
1418	=back	2508	=back
1419
1420		2509
1421	=head3 cf::object::player	2510	=head3 cf::object::player
1422		2511
1423	=over 4	2512	=over 4
1424		2513
…		…
1427	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2516	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1428	can be C<undef>. Does the right thing when the player is currently in a	2517	can be C<undef>. Does the right thing when the player is currently in a
1429	dialogue with the given NPC character.	2518	dialogue with the given NPC character.
1430		2519
1431	=cut	2520	=cut
		2521
		2522	our $SAY_CHANNEL = {
		2523	id => "say",
		2524	title => "Map",
		2525	reply => "say ",
		2526	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2527	};
		2528
		2529	our $CHAT_CHANNEL = {
		2530	id => "chat",
		2531	title => "Chat",
		2532	reply => "chat ",
		2533	tooltip => "Player chat and shouts, global to the server.",
		2534	};
1432		2535
1433	# rough implementation of a future "reply" method that works	2536	# rough implementation of a future "reply" method that works
1434	# with dialog boxes.	2537	# with dialog boxes.
1435	#TODO: the first argument must go, split into a $npc->reply_to ( method	2538	#TODO: the first argument must go, split into a $npc->reply_to ( method
1436	sub cf::object::player::reply($$$;$) {	2539	sub cf::object::player::reply($$$;$) {
…		…
1438		2541
1439	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2542	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1440		2543
1441	if ($self->{record_replies}) {	2544	if ($self->{record_replies}) {
1442	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2545	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2546
1443	} else {	2547	} else {
		2548	my $pl = $self->contr;
		2549
		2550	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2551	my $dialog = $pl->{npc_dialog};
		2552	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2553
		2554	} else {
1444	$msg = $npc->name . " says: $msg" if $npc;	2555	$msg = $npc->name . " says: $msg" if $npc;
1445	$self->message ($msg, $flags);	2556	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2557	}
1446	}	2558	}
		2559	}
		2560
		2561	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2562
		2563	=cut
		2564
		2565	sub cf::object::send_msg {
		2566	my $pl = shift->contr
		2567	or return;
		2568	$pl->send_msg (@_);
1447	}	2569	}
1448		2570
1449	=item $player_object->may ("access")	2571	=item $player_object->may ("access")
1450		2572
1451	Returns wether the given player is authorized to access resource "access"	2573	Returns wether the given player is authorized to access resource "access"
…		…
1464		2586
1465	=item $player_object->enter_link	2587	=item $player_object->enter_link
1466		2588
1467	Freezes the player and moves him/her to a special map (C<{link}>).	2589	Freezes the player and moves him/her to a special map (C<{link}>).
1468		2590
1469	The player should be reaosnably safe there for short amounts of time. You	2591	The player should be reasonably safe there for short amounts of time (e.g.
1470	I<MUST> call C<leave_link> as soon as possible, though.	2592	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2593	though, as the player cannot control the character while it is on the link
		2594	map.
		2595
		2596	Will never block.
1471		2597
1472	=item $player_object->leave_link ($map, $x, $y)	2598	=item $player_object->leave_link ($map, $x, $y)
1473		2599
1474	Moves the player out of the specila link map onto the given map. If the	2600	Moves the player out of the special C<{link}> map onto the specified
1475	map is not valid (or omitted), the player will be moved back to the	2601	map. If the map is not valid (or omitted), the player will be moved back
1476	location he/she was before the call to C<enter_link>, or, if that fails,	2602	to the location he/she was before the call to C<enter_link>, or, if that
1477	to the emergency map position.	2603	fails, to the emergency map position.
1478		2604
1479	Might block.	2605	Might block.
1480		2606
1481	=cut	2607	=cut
		2608
		2609	sub link_map {
		2610	unless ($LINK_MAP) {
		2611	$LINK_MAP = cf::map::find "{link}"
		2612	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2613	$LINK_MAP->load;
		2614	}
		2615
		2616	$LINK_MAP
		2617	}
1482		2618
1483	sub cf::object::player::enter_link {	2619	sub cf::object::player::enter_link {
1484	my ($self) = @_;	2620	my ($self) = @_;
1485		2621
1486	$self->deactivate_recursive;	2622	$self->deactivate_recursive;
1487		2623
1488	return if $self->map == $LINK_MAP;	2624	++$self->{_link_recursion};
		2625
		2626	return if UNIVERSAL::isa $self->map, "ext::map_link";
1489		2627
1490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2628	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1491	if $self->map;	2629	if $self->map && $self->map->{path} ne "{link}";
1492		2630
1493	$self->enter_map ($LINK_MAP, 20, 20);	2631	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1494	}	2632	}
1495		2633
1496	sub cf::object::player::leave_link {	2634	sub cf::object::player::leave_link {
1497	my ($self, $map, $x, $y) = @_;	2635	my ($self, $map, $x, $y) = @_;
		2636
		2637	return unless $self->contr->active;
1498		2638
1499	my $link_pos = delete $self->{_link_pos};	2639	my $link_pos = delete $self->{_link_pos};
1500		2640
1501	unless ($map) {	2641	unless ($map) {
1502	# restore original map position	2642	# restore original map position
…		…
1513	($x, $y) = (-1, -1)	2653	($x, $y) = (-1, -1)
1514	unless (defined $x) && (defined $y);	2654	unless (defined $x) && (defined $y);
1515		2655
1516	# use -1 or undef as default coordinates, not 0, 0	2656	# use -1 or undef as default coordinates, not 0, 0
1517	($x, $y) = ($map->enter_x, $map->enter_y)	2657	($x, $y) = ($map->enter_x, $map->enter_y)
1518	if $x <=0 && $y <= 0;	2658	if $x <= 0 && $y <= 0;
1519		2659
1520	$map->load;	2660	$map->load;
		2661	$map->load_neighbours;
1521		2662
		2663	return unless $self->contr->active;
		2664
		2665	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2666	if ($self->enter_map ($map, $x, $y)) {
		2667	# entering was successful
		2668	delete $self->{_link_recursion};
		2669	# only activate afterwards, to support waiting in hooks
1522	$self->activate_recursive;	2670	$self->activate_recursive;
1523	$self->enter_map ($map, $x, $y);
1524	}
1525
1526	cf::player->attach (
1527	on_logout => sub {
1528	my ($pl) = @_;
1529
1530	# abort map switching before logout
1531	if ($pl->ob->{_link_pos}) {
1532	cf::sync_job {
1533	$pl->ob->leave_link
1534	};
1535	}
1536	},	2671	}
1537	on_login => sub {
1538	my ($pl) = @_;
1539		2672
1540	# try to abort aborted map switching on player login :)	2673	}
1541	# should happen only on crashes
1542	if ($pl->ob->{_link_pos}) {
1543	$pl->ob->enter_link;
1544	Coro::async_pool {
1545	# we need this sleep as the login has a concurrent enter_exit running
1546	# and this sleep increases chances of the player not ending up in scorn
1547	Coro::Timer::sleep 1;
1548	$pl->ob->leave_link;
1549	};
1550	}
1551	},
1552	);
1553		2674
1554	=item $player_object->goto ($path, $x, $y)	2675	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1555		2676
		2677	Moves the player to the given map-path and coordinates by first freezing
		2678	her, loading and preparing them map, calling the provided $check callback
		2679	that has to return the map if sucecssful, and then unfreezes the player on
		2680	the new (success) or old (failed) map position. In either case, $done will
		2681	be called at the end of this process.
		2682
		2683	Note that $check will be called with a potentially non-loaded map, so if
		2684	it needs a loaded map it has to call C<< ->load >>.
		2685
1556	=cut	2686	=cut
		2687
		2688	our $GOTOGEN;
1557		2689
1558	sub cf::object::player::goto {	2690	sub cf::object::player::goto {
1559	my ($self, $path, $x, $y) = @_;	2691	my ($self, $path, $x, $y, $check, $done) = @_;
		2692
		2693	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2694	warn "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2695	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2696	($path, $x, $y) = @$EMERGENCY_POSITION;
		2697	}
		2698
		2699	# do generation counting so two concurrent goto's will be executed in-order
		2700	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1560		2701
1561	$self->enter_link;	2702	$self->enter_link;
1562		2703
1563	(Coro::async_pool {	2704	(async {
1564	$path = new cf::path $path;	2705	$Coro::current->{desc} = "player::goto $path $x $y";
1565		2706
1566	my $map = cf::map::find $path->as_string;	2707	# *tag paths override both path and x|y
		2708	if ($path =~ /^\*(.*)$/) {
		2709	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2710	my $ob = $obs[rand @obs];
		2711
		2712	# see if we actually can go there
		2713	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2714	$ob = $obs[rand @obs];
		2715	} else {
		2716	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2717	}
		2718	# else put us there anyways for now #d#
		2719
		2720	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2721	} else {
		2722	($path, $x, $y) = (undef, undef, undef);
		2723	}
		2724	}
		2725
		2726	my $map = eval {
		2727	my $map = defined $path ? cf::map::find $path : undef;
		2728
		2729	if ($map) {
1567	$map = $map->customise_for ($self) if $map;	2730	$map = $map->customise_for ($self);
1568		2731	$map = $check->($map, $x, $y, $self) if $check && $map;
1569	# warn "entering ", $map->path, " at ($x, $y)\n"	2732	} else {
1570	# if $map;
1571
1572	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2733	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2734	}
1573		2735
		2736	$map
		2737	};
		2738
		2739	if ($@) {
		2740	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2741	LOG llevError | logBacktrace, Carp::longmess $@;
		2742	}
		2743
		2744	if ($gen == $self->{_goto_generation}) {
		2745	delete $self->{_goto_generation};
1574	$self->leave_link ($map, $x, $y);	2746	$self->leave_link ($map, $x, $y);
		2747	}
		2748
		2749	$done->($self) if $done;
1575	})->prio (1);	2750	})->prio (1);
1576	}	2751	}
1577		2752
1578	=item $player_object->enter_exit ($exit_object)	2753	=item $player_object->enter_exit ($exit_object)
1579		2754
…		…
1581		2756
1582	sub parse_random_map_params {	2757	sub parse_random_map_params {
1583	my ($spec) = @_;	2758	my ($spec) = @_;
1584		2759
1585	my $rmp = { # defaults	2760	my $rmp = { # defaults
1586	xsize => 10,	2761	xsize => (cf::rndm 15, 40),
1587	ysize => 10,	2762	ysize => (cf::rndm 15, 40),
		2763	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2764	#layout => string,
1588	};	2765	};
1589		2766
1590	for (split /\n/, $spec) {	2767	for (split /\n/, $spec) {
1591	my ($k, $v) = split /\s+/, $_, 2;	2768	my ($k, $v) = split /\s+/, $_, 2;
1592		2769
…		…
1604	# that depends on the exit object	2781	# that depends on the exit object
1605		2782
1606	my $rmp = parse_random_map_params $exit->msg;	2783	my $rmp = parse_random_map_params $exit->msg;
1607		2784
1608	if ($exit->map) {	2785	if ($exit->map) {
1609	$rmp->{region} = $exit->map->region_name;	2786	$rmp->{region} = $exit->region->name;
1610	$rmp->{origin_map} = $exit->map->path;	2787	$rmp->{origin_map} = $exit->map->path;
1611	$rmp->{origin_x} = $exit->x;	2788	$rmp->{origin_x} = $exit->x;
1612	$rmp->{origin_y} = $exit->y;	2789	$rmp->{origin_y} = $exit->y;
		2790
		2791	$exit->map->touch;
1613	}	2792	}
1614		2793
1615	$rmp->{random_seed} ||= $exit->random_seed;	2794	$rmp->{random_seed} ||= $exit->random_seed;
1616		2795
1617	my $data = cf::to_json $rmp;	2796	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1618	my $md5 = Digest::MD5::md5_hex $data;	2797	my $md5 = Digest::MD5::md5_hex $data;
		2798	my $meta = "$RANDOMDIR/$md5.meta";
1619		2799
1620	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2800	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1621	aio_write $fh, 0, (length $data), $data, 0;	2801	aio_write $fh, 0, (length $data), $data, 0;
		2802	undef $fh;
		2803	aio_rename "$meta~", $meta;
1622		2804
		2805	my $slaying = "?random/$md5";
		2806
		2807	if ($exit->valid) {
1623	$exit->slaying ("?random/$md5");	2808	$exit->slaying ("?random/$md5");
1624	$exit->msg (undef);	2809	$exit->msg (undef);
		2810	}
1625	}	2811	}
1626	}	2812	}
1627		2813
1628	sub cf::object::player::enter_exit {	2814	sub cf::object::player::enter_exit {
1629	my ($self, $exit) = @_;	2815	my ($self, $exit) = @_;
1630		2816
1631	return unless $self->type == cf::PLAYER;	2817	return unless $self->type == cf::PLAYER;
1632		2818
1633	$self->enter_link;	2819	$self->enter_link;
1634		2820
1635	(Coro::async_pool {	2821	(async {
1636	$self->deactivate_recursive; # just to be sure	2822	$Coro::current->{desc} = "enter_exit";
		2823
1637	unless (eval {	2824	unless (eval {
		2825	$self->deactivate_recursive; # just to be sure
		2826
		2827	# random map handling
		2828	{
		2829	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2830
1638	prepare_random_map $exit	2831	prepare_random_map $exit
1639	if $exit->slaying eq "/!";	2832	if $exit->slaying eq "/!";
		2833	}
1640		2834
1641	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2835	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1642	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2836	my $x = $exit->stats->hp;
		2837	my $y = $exit->stats->sp;
1643		2838
		2839	$self->goto ($map, $x, $y);
		2840
		2841	# if exit is damned, update players death & WoR home-position
		2842	$self->contr->savebed ($map, $x, $y)
		2843	if $exit->flag (cf::FLAG_DAMNED);
		2844
1644	1;	2845	1
1645	}) {	2846	}) {
1646	$self->message ("Something went wrong deep within the crossfire server. "	2847	$self->message ("Something went wrong deep within the deliantra server. "
1647	. "I'll try to bring you back to the map you were before. "	2848	. "I'll try to bring you back to the map you were before. "
1648	. "Please report this to the dungeon master",	2849	. "Please report this to the dungeon master!",
1649	cf::NDI_UNIQUE | cf::NDI_RED);	2850	cf::NDI_UNIQUE | cf::NDI_RED);
1650		2851
1651	warn "ERROR in enter_exit: $@";	2852	warn "ERROR in enter_exit: $@";
1652	$self->leave_link;	2853	$self->leave_link;
1653	}	2854	}
1654	})->prio (1);	2855	})->prio (1);
…		…
1667		2868
1668	sub cf::client::send_drawinfo {	2869	sub cf::client::send_drawinfo {
1669	my ($self, $text, $flags) = @_;	2870	my ($self, $text, $flags) = @_;
1670		2871
1671	utf8::encode $text;	2872	utf8::encode $text;
1672	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2873	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1673	}	2874	}
1674		2875
		2876	=item $client->send_big_packet ($pkt)
		2877
		2878	Like C<send_packet>, but tries to compress large packets, and fragments
		2879	them as required.
		2880
		2881	=cut
		2882
		2883	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2884
		2885	sub cf::client::send_big_packet {
		2886	my ($self, $pkt) = @_;
		2887
		2888	# try lzf for large packets
		2889	$pkt = "lzf " . Compress::LZF::compress $pkt
		2890	if 1024 <= length $pkt and $self->{can_lzf};
		2891
		2892	# split very large packets
		2893	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2894	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2895	$pkt = "frag";
		2896	}
		2897
		2898	$self->send_packet ($pkt);
		2899	}
		2900
		2901	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2902
		2903	Send a drawinfo or msg packet to the client, formatting the msg for the
		2904	client if neccessary. C<$type> should be a string identifying the type of
		2905	the message, with C<log> being the default. If C<$color> is negative, suppress
		2906	the message unless the client supports the msg packet.
		2907
		2908	=cut
		2909
		2910	# non-persistent channels (usually the info channel)
		2911	our %CHANNEL = (
		2912	"c/motd" => {
		2913	id => "infobox",
		2914	title => "MOTD",
		2915	reply => undef,
		2916	tooltip => "The message of the day",
		2917	},
		2918	"c/identify" => {
		2919	id => "infobox",
		2920	title => "Identify",
		2921	reply => undef,
		2922	tooltip => "Items recently identified",
		2923	},
		2924	"c/examine" => {
		2925	id => "infobox",
		2926	title => "Examine",
		2927	reply => undef,
		2928	tooltip => "Signs and other items you examined",
		2929	},
		2930	"c/shopinfo" => {
		2931	id => "infobox",
		2932	title => "Shop Info",
		2933	reply => undef,
		2934	tooltip => "What your bargaining skill tells you about the shop",
		2935	},
		2936	"c/book" => {
		2937	id => "infobox",
		2938	title => "Book",
		2939	reply => undef,
		2940	tooltip => "The contents of a note or book",
		2941	},
		2942	"c/lookat" => {
		2943	id => "infobox",
		2944	title => "Look",
		2945	reply => undef,
		2946	tooltip => "What you saw there",
		2947	},
		2948	"c/who" => {
		2949	id => "infobox",
		2950	title => "Players",
		2951	reply => undef,
		2952	tooltip => "Shows players who are currently online",
		2953	},
		2954	"c/body" => {
		2955	id => "infobox",
		2956	title => "Body Parts",
		2957	reply => undef,
		2958	tooltip => "Shows which body parts you posess and are available",
		2959	},
		2960	"c/statistics" => {
		2961	id => "infobox",
		2962	title => "Statistics",
		2963	reply => undef,
		2964	tooltip => "Shows your primary statistics",
		2965	},
		2966	"c/skills" => {
		2967	id => "infobox",
		2968	title => "Skills",
		2969	reply => undef,
		2970	tooltip => "Shows your experience per skill and item power",
		2971	},
		2972	"c/shopitems" => {
		2973	id => "infobox",
		2974	title => "Shop Items",
		2975	reply => undef,
		2976	tooltip => "Shows the items currently for sale in this shop",
		2977	},
		2978	"c/resistances" => {
		2979	id => "infobox",
		2980	title => "Resistances",
		2981	reply => undef,
		2982	tooltip => "Shows your resistances",
		2983	},
		2984	"c/pets" => {
		2985	id => "infobox",
		2986	title => "Pets",
		2987	reply => undef,
		2988	tooltip => "Shows information abotu your pets/a specific pet",
		2989	},
		2990	"c/perceiveself" => {
		2991	id => "infobox",
		2992	title => "Perceive Self",
		2993	reply => undef,
		2994	tooltip => "You gained detailed knowledge about yourself",
		2995	},
		2996	"c/uptime" => {
		2997	id => "infobox",
		2998	title => "Uptime",
		2999	reply => undef,
		3000	tooltip => "How long the server has been running since last restart",
		3001	},
		3002	"c/mapinfo" => {
		3003	id => "infobox",
		3004	title => "Map Info",
		3005	reply => undef,
		3006	tooltip => "Information related to the maps",
		3007	},
		3008	"c/party" => {
		3009	id => "party",
		3010	title => "Party",
		3011	reply => "gsay ",
		3012	tooltip => "Messages and chat related to your party",
		3013	},
		3014	"c/death" => {
		3015	id => "death",
		3016	title => "Death",
		3017	reply => undef,
		3018	tooltip => "Reason for and more info about your most recent death",
		3019	},
		3020	"c/say" => $SAY_CHANNEL,
		3021	"c/chat" => $CHAT_CHANNEL,
		3022	);
		3023
		3024	sub cf::client::send_msg {
		3025	my ($self, $channel, $msg, $color, @extra) = @_;
		3026
		3027	$msg = $self->pl->expand_cfpod ($msg)
		3028	unless $color & cf::NDI_VERBATIM;
		3029
		3030	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3031
		3032	# check predefined channels, for the benefit of C
		3033	if ($CHANNEL{$channel}) {
		3034	$channel = $CHANNEL{$channel};
		3035
		3036	$self->ext_msg (channel_info => $channel);
		3037	$channel = $channel->{id};
		3038
		3039	} elsif (ref $channel) {
		3040	# send meta info to client, if not yet sent
		3041	unless (exists $self->{channel}{$channel->{id}}) {
		3042	$self->{channel}{$channel->{id}} = $channel;
		3043	$self->ext_msg (channel_info => $channel);
		3044	}
		3045
		3046	$channel = $channel->{id};
		3047	}
		3048
		3049	return unless @extra || length $msg;
		3050
		3051	# default colour, mask it out
		3052	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3053	if $color & cf::NDI_DEF;
		3054
		3055	my $pkt = "msg "
		3056	. $self->{json_coder}->encode (
		3057	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3058	);
		3059
		3060	$self->send_big_packet ($pkt);
		3061	}
		3062
		3063	=item $client->ext_msg ($type, @msg)
		3064
		3065	Sends an ext event to the client.
		3066
		3067	=cut
		3068
		3069	sub cf::client::ext_msg($$@) {
		3070	my ($self, $type, @msg) = @_;
		3071
		3072	if ($self->extcmd == 2) {
		3073	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3074	} elsif ($self->extcmd == 1) { # TODO: remove
		3075	push @msg, msgtype => "event_$type";
		3076	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3077	}
		3078	}
		3079
		3080	=item $client->ext_reply ($msgid, @msg)
		3081
		3082	Sends an ext reply to the client.
		3083
		3084	=cut
		3085
		3086	sub cf::client::ext_reply($$@) {
		3087	my ($self, $id, @msg) = @_;
		3088
		3089	if ($self->extcmd == 2) {
		3090	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3091	} elsif ($self->extcmd == 1) {
		3092	#TODO: version 1, remove
		3093	unshift @msg, msgtype => "reply", msgid => $id;
		3094	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3095	}
		3096	}
1675		3097
1676	=item $success = $client->query ($flags, "text", \&cb)	3098	=item $success = $client->query ($flags, "text", \&cb)
1677		3099
1678	Queues a query to the client, calling the given callback with	3100	Queues a query to the client, calling the given callback with
1679	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3101	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1680	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3102	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1681		3103
1682	Queries can fail, so check the return code. Or don't, as queries will become	3104	Queries can fail, so check the return code. Or don't, as queries will
1683	reliable at some point in the future.	3105	become reliable at some point in the future.
1684		3106
1685	=cut	3107	=cut
1686		3108
1687	sub cf::client::query {	3109	sub cf::client::query {
1688	my ($self, $flags, $text, $cb) = @_;	3110	my ($self, $flags, $text, $cb) = @_;
…		…
1696	utf8::encode $text;	3118	utf8::encode $text;
1697	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3119	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1698		3120
1699	$self->send_packet ($self->{query_queue}[0][0])	3121	$self->send_packet ($self->{query_queue}[0][0])
1700	if @{ $self->{query_queue} } == 1;	3122	if @{ $self->{query_queue} } == 1;
		3123
		3124	1
1701	}	3125	}
1702		3126
1703	cf::client->attach (	3127	cf::client->attach (
		3128	on_connect => sub {
		3129	my ($ns) = @_;
		3130
		3131	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3132	},
1704	on_reply => sub {	3133	on_reply => sub {
1705	my ($ns, $msg) = @_;	3134	my ($ns, $msg) = @_;
1706		3135
1707	# this weird shuffling is so that direct followup queries	3136	# this weird shuffling is so that direct followup queries
1708	# get handled first	3137	# get handled first
1709	my $queue = delete $ns->{query_queue}	3138	my $queue = delete $ns->{query_queue}
1710	or return; # be conservative, not sure how that can happen, but we saw a crash here	3139	or return; # be conservative, not sure how that can happen, but we saw a crash here
1711		3140
1712	(shift @$queue)->[1]->($msg);	3141	(shift @$queue)->[1]->($msg);
		3142	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1713		3143
1714	push @{ $ns->{query_queue} }, @$queue;	3144	push @{ $ns->{query_queue} }, @$queue;
1715		3145
1716	if (@{ $ns->{query_queue} } == @$queue) {	3146	if (@{ $ns->{query_queue} } == @$queue) {
1717	if (@$queue) {	3147	if (@$queue) {
…		…
1719	} else {	3149	} else {
1720	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3150	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1721	}	3151	}
1722	}	3152	}
1723	},	3153	},
		3154	on_exticmd => sub {
		3155	my ($ns, $buf) = @_;
		3156
		3157	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3158
		3159	if (ref $msg) {
		3160	my ($type, $reply, @payload) =
		3161	"ARRAY" eq ref $msg
		3162	? @$msg
		3163	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3164
		3165	my @reply;
		3166
		3167	if (my $cb = $EXTICMD{$type}) {
		3168	@reply = $cb->($ns, @payload);
		3169	}
		3170
		3171	$ns->ext_reply ($reply, @reply)
		3172	if $reply;
		3173
		3174	} else {
		3175	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3176	}
		3177
		3178	cf::override;
		3179	},
1724	);	3180	);
1725		3181
1726	=item $client->coro (\&cb)	3182	=item $client->async (\&cb)
1727		3183
1728	Create a new coroutine, running the specified callback. The coroutine will	3184	Create a new coroutine, running the specified callback. The coroutine will
1729	be automatically cancelled when the client gets destroyed (e.g. on logout,	3185	be automatically cancelled when the client gets destroyed (e.g. on logout,
1730	or loss of connection).	3186	or loss of connection).
1731		3187
1732	=cut	3188	=cut
1733		3189
1734	sub cf::client::coro {	3190	sub cf::client::async {
1735	my ($self, $cb) = @_;	3191	my ($self, $cb) = @_;
1736		3192
1737	my $coro = &Coro::async_pool ($cb);	3193	my $coro = &Coro::async ($cb);
1738		3194
1739	$coro->on_destroy (sub {	3195	$coro->on_destroy (sub {
1740	delete $self->{_coro}{$coro+0};	3196	delete $self->{_coro}{$coro+0};
1741	});	3197	});
1742		3198
…		…
1744		3200
1745	$coro	3201	$coro
1746	}	3202	}
1747		3203
1748	cf::client->attach (	3204	cf::client->attach (
1749	on_destroy => sub {	3205	on_client_destroy => sub {
1750	my ($ns) = @_;	3206	my ($ns) = @_;
1751		3207
1752	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3208	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1753	},	3209	},
1754	);	3210	);
…		…
1769	our $safe = new Safe "safe";	3225	our $safe = new Safe "safe";
1770	our $safe_hole = new Safe::Hole;	3226	our $safe_hole = new Safe::Hole;
1771		3227
1772	$SIG{FPE} = 'IGNORE';	3228	$SIG{FPE} = 'IGNORE';
1773		3229
1774	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3230	$safe->permit_only (Opcode::opset qw(
		3231	:base_core :base_mem :base_orig :base_math :base_loop
		3232	grepstart grepwhile mapstart mapwhile
		3233	sort time
		3234	));
1775		3235
1776	# here we export the classes and methods available to script code	3236	# here we export the classes and methods available to script code
1777		3237
1778	=pod	3238	=pod
1779		3239
1780	The following fucntions and emthods are available within a safe environment:	3240	The following functions and methods are available within a safe environment:
1781		3241
1782	cf::object contr pay_amount pay_player map	3242	cf::object
		3243	contr pay_amount pay_player map x y force_find force_add destroy
		3244	insert remove name archname title slaying race decrease split
		3245	value
		3246
1783	cf::object::player player	3247	cf::object::player
1784	cf::player peaceful	3248	player
1785	cf::map trigger	3249
		3250	cf::player
		3251	peaceful
		3252
		3253	cf::map
		3254	trigger
1786		3255
1787	=cut	3256	=cut
1788		3257
1789	for (	3258	for (
1790	["cf::object" => qw(contr pay_amount pay_player map)],	3259	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3260	insert remove inv nrof name archname title slaying race
		3261	decrease split destroy change_exp value msg lore send_msg)],
1791	["cf::object::player" => qw(player)],	3262	["cf::object::player" => qw(player)],
1792	["cf::player" => qw(peaceful)],	3263	["cf::player" => qw(peaceful send_msg)],
1793	["cf::map" => qw(trigger)],	3264	["cf::map" => qw(trigger)],
1794	) {	3265	) {
1795	no strict 'refs';	3266	no strict 'refs';
1796	my ($pkg, @funs) = @$_;	3267	my ($pkg, @funs) = @$_;
1797	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3268	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1815		3286
1816	my $qcode = $code;	3287	my $qcode = $code;
1817	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3288	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1818	$qcode =~ s/\n/\\n/g;	3289	$qcode =~ s/\n/\\n/g;
1819		3290
		3291	%vars = (_dummy => 0) unless %vars;
		3292
		3293	my @res;
1820	local $_;	3294	local $_;
1821	local @safe::cf::_safe_eval_args = values %vars;
1822		3295
1823	my $eval =	3296	my $eval =
1824	"do {\n"	3297	"do {\n"
1825	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3298	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1826	. "#line 0 \"{$qcode}\"\n"	3299	. "#line 0 \"{$qcode}\"\n"
1827	. $code	3300	. $code
1828	. "\n}"	3301	. "\n}"
1829	;	3302	;
1830		3303
		3304	if ($CFG{safe_eval}) {
1831	sub_generation_inc;	3305	sub_generation_inc;
		3306	local @safe::cf::_safe_eval_args = values %vars;
1832	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3307	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1833	sub_generation_inc;	3308	sub_generation_inc;
		3309	} else {
		3310	local @cf::_safe_eval_args = values %vars;
		3311	@res = wantarray ? eval eval : scalar eval $eval;
		3312	}
1834		3313
1835	if ($@) {	3314	if ($@) {
1836	warn "$@";	3315	warn "$@";
1837	warn "while executing safe code '$code'\n";	3316	warn "while executing safe code '$code'\n";
1838	warn "with arguments " . (join " ", %vars) . "\n";	3317	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1857	=cut	3336	=cut
1858		3337
1859	sub register_script_function {	3338	sub register_script_function {
1860	my ($fun, $cb) = @_;	3339	my ($fun, $cb) = @_;
1861		3340
1862	no strict 'refs';	3341	$fun = "safe::$fun" if $CFG{safe_eval};
1863	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3342	*$fun = $safe_hole->wrap ($cb);
1864	}	3343	}
1865		3344
1866	=back	3345	=back
1867		3346
1868	=cut	3347	=cut
1869		3348
1870	#############################################################################	3349	#############################################################################
		3350	# the server's init and main functions
1871		3351
1872	=head2 EXTENSION DATABASE SUPPORT	3352	sub load_facedata($) {
		3353	my ($path) = @_;
1873		3354
1874	Crossfire maintains a very simple database for extension use. It can	3355	# HACK to clear player env face cache, we need some signal framework
1875	currently store anything that can be serialised using Storable, which	3356	# for this (global event?)
1876	excludes objects.	3357	%ext::player_env::MUSIC_FACE_CACHE = ();
1877		3358
1878	The parameter C<$family> should best start with the name of the extension	3359	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1879	using it, it should be unique.
1880		3360
1881	=over 4	3361	warn "loading facedata from $path\n";
1882		3362
1883	=item $hashref = cf::db_get $family	3363	my $facedata;
		3364	0 < aio_load $path, $facedata
		3365	or die "$path: $!";
1884		3366
1885	Return a hashref for use by the extension C<$family>, which can be	3367	$facedata = Coro::Storable::thaw $facedata;
1886	modified. After modifications, you have to call C<cf::db_dirty> or
1887	C<cf::db_sync>.
1888		3368
1889	=item $value = cf::db_get $family => $key	3369	$facedata->{version} == 2
		3370	or cf::cleanup "$path: version mismatch, cannot proceed.";
1890		3371
1891	Returns a single value from the database	3372	# patch in the exptable
1892		3373	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1893	=item cf::db_put $family => $hashref	3374	$facedata->{resource}{"res/exp_table"} = {
1894		3375	type => FT_RSRC,
1895	Stores the given family hashref into the database. Updates are delayed, if	3376	data => $exp_table,
1896	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3377	hash => (Digest::MD5::md5 $exp_table),
1897
1898	=item cf::db_put $family => $key => $value
1899
1900	Stores the given C<$value> in the family hash. Updates are delayed, if you
1901	want the data to be synced to disk immediately, use C<cf::db_sync>.
1902
1903	=item cf::db_dirty
1904
1905	Marks the database as dirty, to be updated at a later time.
1906
1907	=item cf::db_sync
1908
1909	Immediately write the database to disk I<if it is dirty>.
1910
1911	=cut
1912
1913	our $DB;
1914
1915	{
1916	my $path = cf::localdir . "/database.pst";
1917
1918	sub db_load() {
1919	$DB = stat $path ? Storable::retrieve $path : { };
1920	}
1921
1922	my $pid;
1923
1924	sub db_save() {
1925	waitpid $pid, 0 if $pid;
1926	if (0 == ($pid = fork)) {
1927	$DB->{_meta}{version} = 1;
1928	Storable::nstore $DB, "$path~";
1929	rename "$path~", $path;
1930	cf::_exit 0 if defined $pid;
1931	}
1932	}
1933
1934	my $dirty;
1935
1936	sub db_sync() {
1937	db_save if $dirty;
1938	undef $dirty;
1939	}
1940
1941	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1942	db_sync;
1943	});	3378	};
		3379	cf::cede_to_tick;
1944		3380
1945	sub db_dirty() {
1946	$dirty = 1;
1947	$idle->start;
1948	}	3381	{
		3382	my $faces = $facedata->{faceinfo};
1949		3383
1950	sub db_get($;$) {	3384	while (my ($face, $info) = each %$faces) {
1951	@_ >= 2	3385	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1952	? $DB->{$_[0]}{$_[1]}
1953	: ($DB->{$_[0]} ||= { })
1954	}
1955		3386
1956	sub db_put($$;$) {	3387	cf::face::set_visibility $idx, $info->{visibility};
1957	if (@_ >= 3) {	3388	cf::face::set_magicmap $idx, $info->{magicmap};
1958	$DB->{$_[0]}{$_[1]} = $_[2];	3389	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1959	} else {	3390	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1960	$DB->{$_[0]} = $_[1];
1961	}
1962	db_dirty;
1963	}
1964		3391
1965	cf::global->attach (	3392	cf::cede_to_tick;
1966	prio => 10000,
1967	on_cleanup => sub {
1968	db_sync;
1969	},	3393	}
1970	);
1971	}
1972		3394
1973	#############################################################################	3395	while (my ($face, $info) = each %$faces) {
1974	# the server's main()	3396	next unless $info->{smooth};
1975		3397
1976	sub cfg_load {	3398	my $idx = cf::face::find $face
		3399	or next;
		3400
		3401	if (my $smooth = cf::face::find $info->{smooth}) {
		3402	cf::face::set_smooth $idx, $smooth;
		3403	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3404	} else {
		3405	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3406	}
		3407
		3408	cf::cede_to_tick;
		3409	}
		3410	}
		3411
		3412	{
		3413	my $anims = $facedata->{animinfo};
		3414
		3415	while (my ($anim, $info) = each %$anims) {
		3416	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3417	cf::cede_to_tick;
		3418	}
		3419
		3420	cf::anim::invalidate_all; # d'oh
		3421	}
		3422
		3423	{
		3424	my $res = $facedata->{resource};
		3425
		3426	while (my ($name, $info) = each %$res) {
		3427	if (defined $info->{type}) {
		3428	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3429
		3430	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3431	cf::face::set_type $idx, $info->{type};
		3432	} else {
		3433	$RESOURCE{$name} = $info; # unused
		3434	}
		3435
		3436	cf::cede_to_tick;
		3437	}
		3438	}
		3439
		3440	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3441
		3442	1
		3443	}
		3444
		3445	register_exticmd fx_want => sub {
		3446	my ($ns, $want) = @_;
		3447
		3448	while (my ($k, $v) = each %$want) {
		3449	$ns->fx_want ($k, $v);
		3450	}
		3451	};
		3452
		3453	sub load_resource_file($) {
		3454	my $guard = lock_acquire "load_resource_file";
		3455
		3456	my $status = load_resource_file_ $_[0];
		3457	get_slot 0.1, 100;
		3458	cf::arch::commit_load;
		3459
		3460	$status
		3461	}
		3462
		3463	sub reload_regions {
		3464	# HACK to clear player env face cache, we need some signal framework
		3465	# for this (global event?)
		3466	%ext::player_env::MUSIC_FACE_CACHE = ();
		3467
		3468	load_resource_file "$MAPDIR/regions"
		3469	or die "unable to load regions file\n";
		3470
		3471	for (cf::region::list) {
		3472	$_->{match} = qr/$_->{match}/
		3473	if exists $_->{match};
		3474	}
		3475	}
		3476
		3477	sub reload_facedata {
		3478	load_facedata "$DATADIR/facedata"
		3479	or die "unable to load facedata\n";
		3480	}
		3481
		3482	sub reload_archetypes {
		3483	load_resource_file "$DATADIR/archetypes"
		3484	or die "unable to load archetypes\n";
		3485	}
		3486
		3487	sub reload_treasures {
		3488	load_resource_file "$DATADIR/treasures"
		3489	or die "unable to load treasurelists\n";
		3490	}
		3491
		3492	sub reload_sound {
		3493	warn "loading sound config from $DATADIR/sound\n";
		3494
		3495	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3496	or die "$DATADIR/sound $!";
		3497
		3498	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3499
		3500	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3501	my $sound = $soundconf->{compat}[$_]
		3502	or next;
		3503
		3504	my $face = cf::face::find "sound/$sound->[1]";
		3505	cf::sound::set $sound->[0] => $face;
		3506	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3507	}
		3508
		3509	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3510	my $face = cf::face::find "sound/$v";
		3511	cf::sound::set $k => $face;
		3512	}
		3513	}
		3514
		3515	sub reload_resources {
		3516	warn "reloading resource files...\n";
		3517
		3518	reload_facedata;
		3519	reload_sound;
		3520	reload_archetypes;
		3521	reload_regions;
		3522	reload_treasures;
		3523
		3524	warn "finished reloading resource files\n";
		3525	}
		3526
		3527	sub reload_config {
		3528	warn "reloading config file...\n";
		3529
1977	open my $fh, "<:utf8", cf::confdir . "/config"	3530	open my $fh, "<:utf8", "$CONFDIR/config"
1978	or return;	3531	or return;
1979		3532
1980	local $/;	3533	local $/;
1981	*CFG = YAML::Syck::Load <$fh>;	3534	*CFG = YAML::XS::Load scalar <$fh>;
1982		3535
1983	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3536	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3537
		3538	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3539	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1984		3540
1985	if (exists $CFG{mlockall}) {	3541	if (exists $CFG{mlockall}) {
1986	eval {	3542	eval {
1987	$CFG{mlockall} ? &mlockall : &munlockall	3543	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1988	and die "WARNING: m(un)lockall failed: $!\n";	3544	and die "WARNING: m(un)lockall failed: $!\n";
1989	};	3545	};
1990	warn $@ if $@;	3546	warn $@ if $@;
1991	}	3547	}
		3548
		3549	warn "finished reloading resource files\n";
		3550	}
		3551
		3552	sub pidfile() {
		3553	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3554	or die "$PIDFILE: $!";
		3555	flock $fh, &Fcntl::LOCK_EX
		3556	or die "$PIDFILE: flock: $!";
		3557	$fh
		3558	}
		3559
		3560	# make sure only one server instance is running at any one time
		3561	sub atomic {
		3562	my $fh = pidfile;
		3563
		3564	my $pid = <$fh>;
		3565	kill 9, $pid if $pid > 0;
		3566
		3567	seek $fh, 0, 0;
		3568	print $fh $$;
		3569	}
		3570
		3571	sub main_loop {
		3572	warn "EV::loop starting\n";
		3573	if (1) {
		3574	EV::loop;
		3575	}
		3576	warn "EV::loop returned\n";
		3577	goto &main_loop unless $REALLY_UNLOOP;
1992	}	3578	}
1993		3579
1994	sub main {	3580	sub main {
		3581	cf::init_globals; # initialise logging
		3582
		3583	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3584	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3585	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3586	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3587
		3588	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3589
1995	# we must not ever block the main coroutine	3590	# we must not ever block the main coroutine
1996	local $Coro::idle = sub {	3591	local $Coro::idle = sub {
1997	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3592	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1998	(Coro::unblock_sub {	3593	(async {
1999	Event::one_event;	3594	$Coro::current->{desc} = "IDLE BUG HANDLER";
2000	})->();	3595	EV::loop EV::LOOP_ONESHOT;
		3596	})->prio (Coro::PRIO_MAX);
2001	};	3597	};
2002		3598
2003	cfg_load;	3599	evthread_start IO::AIO::poll_fileno;
2004	db_load;	3600
		3601	cf::sync_job {
		3602	cf::init_experience;
		3603	cf::init_anim;
		3604	cf::init_attackmess;
		3605	cf::init_dynamic;
		3606
		3607	cf::load_settings;
		3608	cf::load_materials;
		3609
		3610	reload_resources;
		3611	reload_config;
		3612	db_init;
		3613
		3614	cf::init_uuid;
		3615	cf::init_signals;
		3616	cf::init_skills;
		3617
		3618	cf::init_beforeplay;
		3619
		3620	atomic;
		3621
2005	load_extensions;	3622	load_extensions;
2006	Event::loop;	3623
		3624	utime time, time, $RUNTIMEFILE;
		3625
		3626	# no (long-running) fork's whatsoever before this point(!)
		3627	use POSIX ();
		3628	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3629
		3630	(pop @POST_INIT)->(0) while @POST_INIT;
		3631	};
		3632
		3633	cf::object::thawer::errors_are_fatal 0;
		3634	warn "parse errors in files are no longer fatal from this point on.\n";
		3635
		3636	main_loop;
2007	}	3637	}
2008		3638
2009	#############################################################################	3639	#############################################################################
2010	# initialisation	3640	# initialisation and cleanup
2011		3641
		3642	# install some emergency cleanup handlers
		3643	BEGIN {
		3644	our %SIGWATCHER = ();
		3645	for my $signal (qw(INT HUP TERM)) {
		3646	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3647	cf::cleanup "SIG$signal";
		3648	};
		3649	}
		3650	}
		3651
		3652	sub write_runtime_sync {
		3653	my $t0 = AE::time;
		3654
		3655	# first touch the runtime file to show we are still running:
		3656	# the fsync below can take a very very long time.
		3657
		3658	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3659
		3660	my $guard = cf::lock_acquire "write_runtime";
		3661
		3662	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3663	or return;
		3664
		3665	my $value = $cf::RUNTIME + 90 + 10;
		3666	# 10 is the runtime save interval, for a monotonic clock
		3667	# 60 allows for the watchdog to kill the server.
		3668
		3669	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3670	and return;
		3671
		3672	# always fsync - this file is important
		3673	aio_fsync $fh
		3674	and return;
		3675
		3676	# touch it again to show we are up-to-date
		3677	aio_utime $fh, undef, undef;
		3678
		3679	close $fh
		3680	or return;
		3681
		3682	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3683	and return;
		3684
		3685	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3686
		3687	1
		3688	}
		3689
		3690	our $uuid_lock;
		3691	our $uuid_skip;
		3692
		3693	sub write_uuid_sync($) {
		3694	$uuid_skip ||= $_[0];
		3695
		3696	return if $uuid_lock;
		3697	local $uuid_lock = 1;
		3698
		3699	my $uuid = "$LOCALDIR/uuid";
		3700
		3701	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3702	or return;
		3703
		3704	my $value = uuid_seq uuid_cur;
		3705
		3706	unless ($value) {
		3707	warn "cowardly refusing to write zero uuid value!\n";
		3708	return;
		3709	}
		3710
		3711	my $value = uuid_str $value + $uuid_skip;
		3712	$uuid_skip = 0;
		3713
		3714	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3715	and return;
		3716
		3717	# always fsync - this file is important
		3718	aio_fsync $fh
		3719	and return;
		3720
		3721	close $fh
		3722	or return;
		3723
		3724	aio_rename "$uuid~", $uuid
		3725	and return;
		3726
		3727	warn "uuid file written ($value).\n";
		3728
		3729	1
		3730
		3731	}
		3732
		3733	sub write_uuid($$) {
		3734	my ($skip, $sync) = @_;
		3735
		3736	$sync ? write_uuid_sync $skip
		3737	: async { write_uuid_sync $skip };
		3738	}
		3739
		3740	sub emergency_save() {
		3741	my $freeze_guard = cf::freeze_mainloop;
		3742
		3743	warn "emergency_perl_save: enter\n";
		3744
		3745	cf::sync_job {
		3746	# this is a trade-off: we want to be very quick here, so
		3747	# save all maps without fsync, and later call a global sync
		3748	# (which in turn might be very very slow)
		3749	local $USE_FSYNC = 0;
		3750
		3751	# use a peculiar iteration method to avoid tripping on perl
		3752	# refcount bugs in for. also avoids problems with players
		3753	# and maps saved/destroyed asynchronously.
		3754	warn "emergency_perl_save: begin player save\n";
		3755	for my $login (keys %cf::PLAYER) {
		3756	my $pl = $cf::PLAYER{$login} or next;
		3757	$pl->valid or next;
		3758	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3759	$pl->save;
		3760	}
		3761	warn "emergency_perl_save: end player save\n";
		3762
		3763	warn "emergency_perl_save: begin map save\n";
		3764	for my $path (keys %cf::MAP) {
		3765	my $map = $cf::MAP{$path} or next;
		3766	$map->valid or next;
		3767	$map->save;
		3768	}
		3769	warn "emergency_perl_save: end map save\n";
		3770
		3771	warn "emergency_perl_save: begin database checkpoint\n";
		3772	BDB::db_env_txn_checkpoint $DB_ENV;
		3773	warn "emergency_perl_save: end database checkpoint\n";
		3774
		3775	warn "emergency_perl_save: begin write uuid\n";
		3776	write_uuid_sync 1;
		3777	warn "emergency_perl_save: end write uuid\n";
		3778	};
		3779
		3780	warn "emergency_perl_save: starting sync()\n";
		3781	IO::AIO::aio_sync sub {
		3782	warn "emergency_perl_save: finished sync()\n";
		3783	};
		3784
		3785	warn "emergency_perl_save: leave\n";
		3786	}
		3787
		3788	sub post_cleanup {
		3789	my ($make_core) = @_;
		3790
		3791	warn Carp::longmess "post_cleanup backtrace"
		3792	if $make_core;
		3793
		3794	my $fh = pidfile;
		3795	unlink $PIDFILE if <$fh> == $$;
		3796	}
		3797
		3798	# a safer delete_package, copied from Symbol
		3799	sub clear_package($) {
		3800	my $pkg = shift;
		3801
		3802	# expand to full symbol table name if needed
		3803	unless ($pkg =~ /^main::.*::$/) {
		3804	$pkg = "main$pkg" if $pkg =~ /^::/;
		3805	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3806	$pkg .= '::' unless $pkg =~ /::$/;
		3807	}
		3808
		3809	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3810	my $stem_symtab = *{$stem}{HASH};
		3811
		3812	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3813	or return;
		3814
		3815	# clear all symbols
		3816	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3817	for my $name (keys %$leaf_symtab) {
		3818	_gv_clear *{"$pkg$name"};
		3819	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3820	}
		3821	}
		3822
2012	sub reload() {	3823	sub do_reload_perl() {
2013	# can/must only be called in main	3824	# can/must only be called in main
2014	if ($Coro::current != $Coro::main) {	3825	if (in_main) {
2015	warn "can only reload from main coroutine\n";	3826	warn "can only reload from main coroutine";
2016	return;	3827	return;
2017	}	3828	}
2018		3829
		3830	return if $RELOAD++;
		3831
		3832	my $t1 = AE::time;
		3833
		3834	while ($RELOAD) {
2019	warn "reloading...";	3835	warn "reloading...";
2020		3836
2021	my $guard = freeze_mainloop;	3837	warn "entering sync_job";
		3838
		3839	cf::sync_job {
		3840	cf::write_runtime_sync; # external watchdog should not bark
2022	cf::emergency_save;	3841	cf::emergency_save;
		3842	cf::write_runtime_sync; # external watchdog should not bark
2023		3843
2024	eval {	3844	warn "syncing database to disk";
		3845	BDB::db_env_txn_checkpoint $DB_ENV;
		3846
2025	# if anything goes wrong in here, we should simply crash as we already saved	3847	# if anything goes wrong in here, we should simply crash as we already saved
2026		3848
2027	# cancel all watchers	3849	warn "flushing outstanding aio requests";
2028	for (Event::all_watchers) {	3850	while (IO::AIO::nreqs || BDB::nreqs) {
2029	$_->cancel if $_->data & WF_AUTOCANCEL;	3851	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2030	}
2031
2032	# cancel all extension coros
2033	$_->cancel for values %EXT_CORO;
2034	%EXT_CORO = ();
2035
2036	# unload all extensions
2037	for (@exts) {
2038	warn "unloading <$_>";
2039	unload_extension $_;
2040	}
2041
2042	# unload all modules loaded from $LIBDIR
2043	while (my ($k, $v) = each %INC) {
2044	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2045
2046	warn "removing <$k>";
2047	delete $INC{$k};
2048
2049	$k =~ s/\.pm$//;
2050	$k =~ s/\//::/g;
2051
2052	if (my $cb = $k->can ("unload_module")) {
2053	$cb->();
2054	}	3852	}
2055		3853
2056	Symbol::delete_package $k;	3854	warn "cancelling all extension coros";
		3855	$_->cancel for values %EXT_CORO;
		3856	%EXT_CORO = ();
		3857
		3858	warn "removing commands";
		3859	%COMMAND = ();
		3860
		3861	warn "removing ext/exti commands";
		3862	%EXTCMD = ();
		3863	%EXTICMD = ();
		3864
		3865	warn "unloading/nuking all extensions";
		3866	for my $pkg (@EXTS) {
		3867	warn "... unloading $pkg";
		3868
		3869	if (my $cb = $pkg->can ("unload")) {
		3870	eval {
		3871	$cb->($pkg);
		3872	1
		3873	} or warn "$pkg unloaded, but with errors: $@";
		3874	}
		3875
		3876	warn "... clearing $pkg";
		3877	clear_package $pkg;
2057	}	3878	}
2058		3879
2059	# sync database to disk	3880	warn "unloading all perl modules loaded from $LIBDIR";
2060	cf::db_sync;	3881	while (my ($k, $v) = each %INC) {
2061	IO::AIO::flush;	3882	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2062		3883
		3884	warn "... unloading $k";
		3885	delete $INC{$k};
		3886
		3887	$k =~ s/\.pm$//;
		3888	$k =~ s/\//::/g;
		3889
		3890	if (my $cb = $k->can ("unload_module")) {
		3891	$cb->();
		3892	}
		3893
		3894	clear_package $k;
		3895	}
		3896
2063	# get rid of safe::, as good as possible	3897	warn "getting rid of safe::, as good as possible";
2064	Symbol::delete_package "safe::$_"	3898	clear_package "safe::$_"
2065	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3899	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2066		3900
2067	# remove register_script_function callbacks	3901	warn "unloading cf.pm \"a bit\"";
2068	# TODO
2069
2070	# unload cf.pm "a bit"
2071	delete $INC{"cf.pm"};	3902	delete $INC{"cf.pm"};
		3903	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2072		3904
2073	# don't, removes xs symbols, too,	3905	# don't, removes xs symbols, too,
2074	# and global variables created in xs	3906	# and global variables created in xs
2075	#Symbol::delete_package __PACKAGE__;	3907	#clear_package __PACKAGE__;
2076		3908
2077	# reload cf.pm	3909	warn "unload completed, starting to reload now";
		3910
2078	warn "reloading cf.pm";	3911	warn "reloading cf.pm";
2079	require cf;	3912	require cf;
2080	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3913	cf::_connect_to_perl_1;
2081		3914
2082	# load config and database again	3915	warn "loading config and database again";
2083	cf::cfg_load;	3916	cf::reload_config;
2084	cf::db_load;
2085		3917
2086	# load extensions
2087	warn "load extensions";	3918	warn "loading extensions";
2088	cf::load_extensions;	3919	cf::load_extensions;
2089		3920
2090	# reattach attachments to objects	3921	if ($REATTACH_ON_RELOAD) {
		3922	warn "reattaching attachments to objects/players";
		3923	_global_reattach; # objects, sockets
		3924	warn "reattaching attachments to maps";
		3925	reattach $_ for values %MAP;
		3926	warn "reattaching attachments to players";
		3927	reattach $_ for values %PLAYER;
		3928	}
		3929
		3930	warn "running post_init jobs";
		3931	(pop @POST_INIT)->(1) while @POST_INIT;
		3932
		3933	warn "leaving sync_job";
		3934
		3935	1
		3936	} or do {
		3937	warn $@;
		3938	cf::cleanup "error while reloading, exiting.";
		3939	};
		3940
2091	warn "reattach";	3941	warn "reloaded";
2092	_global_reattach;	3942	--$RELOAD;
		3943	}
		3944
		3945	$t1 = AE::time - $t1;
		3946	warn "reload completed in ${t1}s\n";
		3947	};
		3948
		3949	our $RELOAD_WATCHER; # used only during reload
		3950
		3951	sub reload_perl() {
		3952	# doing reload synchronously and two reloads happen back-to-back,
		3953	# coro crashes during coro_state_free->destroy here.
		3954
		3955	$RELOAD_WATCHER ||= cf::async {
		3956	Coro::AIO::aio_wait cache_extensions;
		3957
		3958	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3959	do_reload_perl;
		3960	undef $RELOAD_WATCHER;
		3961	};
2093	};	3962	};
2094
2095	if ($@) {
2096	warn $@;
2097	warn "error while reloading, exiting.";
2098	exit 1;
2099	}
2100
2101	warn "reloaded successfully";
2102	};
2103
2104	#############################################################################
2105
2106	unless ($LINK_MAP) {
2107	$LINK_MAP = cf::map::new;
2108
2109	$LINK_MAP->width (41);
2110	$LINK_MAP->height (41);
2111	$LINK_MAP->alloc;
2112	$LINK_MAP->path ("{link}");
2113	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2114	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2115
2116	# dirty hack because... archetypes are not yet loaded
2117	Event->timer (
2118	after => 2,
2119	cb => sub {
2120	$_[0]->w->cancel;
2121
2122	# provide some exits "home"
2123	my $exit = cf::object::new "exit";
2124
2125	$exit->slaying ($EMERGENCY_POSITION->[0]);
2126	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2127	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2128
2129	$LINK_MAP->insert ($exit->clone, 19, 19);
2130	$LINK_MAP->insert ($exit->clone, 19, 20);
2131	$LINK_MAP->insert ($exit->clone, 19, 21);
2132	$LINK_MAP->insert ($exit->clone, 20, 19);
2133	$LINK_MAP->insert ($exit->clone, 20, 21);
2134	$LINK_MAP->insert ($exit->clone, 21, 19);
2135	$LINK_MAP->insert ($exit->clone, 21, 20);
2136	$LINK_MAP->insert ($exit->clone, 21, 21);
2137
2138	$exit->destroy;
2139	});
2140
2141	$LINK_MAP->{deny_save} = 1;
2142	$LINK_MAP->{deny_reset} = 1;
2143
2144	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2145	}	3963	}
2146
2147	register "<global>", __PACKAGE__;
2148		3964
2149	register_command "reload" => sub {	3965	register_command "reload" => sub {
2150	my ($who, $arg) = @_;	3966	my ($who, $arg) = @_;
2151		3967
2152	if ($who->flag (FLAG_WIZ)) {	3968	if ($who->flag (FLAG_WIZ)) {
2153	$who->message ("start of reload.");
2154	reload;
2155	$who->message ("end of reload.");	3969	$who->message ("reloading server.");
		3970	async {
		3971	$Coro::current->{desc} = "perl_reload";
		3972	reload_perl;
		3973	};
2156	}	3974	}
2157	};	3975	};
2158		3976
2159	unshift @INC, $LIBDIR;	3977	unshift @INC, $LIBDIR;
2160		3978
2161	$TICK_WATCHER = Event->timer (	3979	my $bug_warning = 0;
2162	reentrant => 0,	3980
2163	prio => 0,	3981	our @WAIT_FOR_TICK;
2164	at => $NEXT_TICK || $TICK,	3982	our @WAIT_FOR_TICK_BEGIN;
2165	data => WF_AUTOCANCEL,	3983
2166	cb => sub {	3984	sub wait_for_tick {
		3985	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3986
		3987	my $signal = new Coro::Signal;
		3988	push @WAIT_FOR_TICK, $signal;
		3989	$signal->wait;
		3990	}
		3991
		3992	sub wait_for_tick_begin {
		3993	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3994
		3995	my $signal = new Coro::Signal;
		3996	push @WAIT_FOR_TICK_BEGIN, $signal;
		3997	$signal->wait;
		3998	}
		3999
		4000	sub tick {
		4001	if ($Coro::current != $Coro::main) {
		4002	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4003	unless ++$bug_warning > 10;
		4004	return;
		4005	}
		4006
2167	cf::server_tick; # one server iteration	4007	cf::server_tick; # one server iteration
2168	$RUNTIME += $TICK;
2169	$NEXT_TICK += $TICK;
2170		4008
2171	# if we are delayed by four ticks or more, skip them all	4009	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2172	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2173		4010
2174	$TICK_WATCHER->at ($NEXT_TICK);	4011	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2175	$TICK_WATCHER->start;	4012	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2176	},	4013	Coro::async_pool {
2177	);	4014	$Coro::current->{desc} = "runtime saver";
2178
2179	IO::AIO::max_poll_time $TICK * 0.2;
2180
2181	Event->io (
2182	fd => IO::AIO::poll_fileno,
2183	poll => 'r',
2184	prio => 5,
2185	data => WF_AUTOCANCEL,
2186	cb => \&IO::AIO::poll_cb,
2187	);
2188
2189	Event->timer (
2190	data => WF_AUTOCANCEL,
2191	after => 0,
2192	interval => 10,
2193	cb => sub {
2194	(Coro::unblock_sub {
2195	write_runtime	4015	write_runtime_sync
2196	or warn "ERROR: unable to write runtime file: $!";	4016	or warn "ERROR: unable to write runtime file: $!";
2197	})->();	4017	};
2198	},	4018	}
2199	);	4019
		4020	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4021	$sig->send;
		4022	}
		4023	while (my $sig = shift @WAIT_FOR_TICK) {
		4024	$sig->send;
		4025	}
		4026
		4027	$LOAD = ($NOW - $TICK_START) / $TICK;
		4028	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4029
		4030	if (0) {
		4031	if ($NEXT_TICK) {
		4032	my $jitter = $TICK_START - $NEXT_TICK;
		4033	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4034	warn "jitter $JITTER\n";#d#
		4035	}
		4036	}
		4037	}
		4038
		4039	{
		4040	# configure BDB
		4041
		4042	BDB::min_parallel 16;
		4043	BDB::max_poll_reqs $TICK * 0.1;
		4044	$AnyEvent::BDB::WATCHER->priority (1);
		4045
		4046	unless ($DB_ENV) {
		4047	$DB_ENV = BDB::db_env_create;
		4048	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4049	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4050	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4051	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4052	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4053
		4054	cf::sync_job {
		4055	eval {
		4056	BDB::db_env_open
		4057	$DB_ENV,
		4058	$BDBDIR,
		4059	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4060	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4061	0666;
		4062
		4063	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4064	};
		4065
		4066	cf::cleanup "db_env_open(db): $@" if $@;
		4067	};
		4068	}
		4069
		4070	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4071	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4072	};
		4073	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4074	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4075	};
		4076	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4077	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4078	};
		4079	}
		4080
		4081	{
		4082	# configure IO::AIO
		4083
		4084	IO::AIO::min_parallel 8;
		4085	IO::AIO::max_poll_time $TICK * 0.1;
		4086	undef $AnyEvent::AIO::WATCHER;
		4087	}
		4088
		4089	my $_log_backtrace;
		4090
		4091	sub _log_backtrace {
		4092	my ($msg, @addr) = @_;
		4093
		4094	$msg =~ s/\n//;
		4095
		4096	# limit the # of concurrent backtraces
		4097	if ($_log_backtrace < 2) {
		4098	++$_log_backtrace;
		4099	my $perl_bt = Carp::longmess $msg;
		4100	async {
		4101	$Coro::current->{desc} = "abt $msg";
		4102
		4103	my @bt = fork_call {
		4104	@addr = map { sprintf "%x", $_ } @addr;
		4105	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4106	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4107	or die "addr2line: $!";
		4108
		4109	my @funcs;
		4110	my @res = <$fh>;
		4111	chomp for @res;
		4112	while (@res) {
		4113	my ($func, $line) = splice @res, 0, 2, ();
		4114	push @funcs, "[$func] $line";
		4115	}
		4116
		4117	@funcs
		4118	};
		4119
		4120	LOG llevInfo, "[ABT] $perl_bt\n";
		4121	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4122	LOG llevInfo, "[ABT] $_\n" for @bt;
		4123	--$_log_backtrace;
		4124	};
		4125	} else {
		4126	LOG llevInfo, "[ABT] $msg\n";
		4127	LOG llevInfo, "[ABT] [suppressed]\n";
		4128	}
		4129	}
		4130
		4131	# load additional modules
		4132	require "cf/$_.pm" for @EXTRA_MODULES;
		4133	cf::_connect_to_perl_2;
2200		4134
2201	END { cf::emergency_save }	4135	END { cf::emergency_save }
2202		4136
2203	1	4137	1
2204		4138

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