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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.130 by root, Thu Jan 4 00:08:08 2007 UTC vs.
Revision 1.516 by root, Thu Apr 15 06:05:52 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;
		112
		113	our $OUTPUT_RATE_MIN = 4000;
		114	our $OUTPUT_RATE_MAX = 100000;
		115
		116	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	118	our $NEXT_TICK;
45	our $NOW;	119	our $USE_FSYNC = 1; # use fsync to write maps - default on
		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
		123	our $BDB_TRICKLE_WATCHER;
		124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
46		127
47	our %CFG;	128	our %CFG;
48		129
49	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
51		133
52	our %MAP; # all maps	134	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	135	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	136	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	137
56	our %EXT_CORO;	138	# used to convert map paths into valid unix filenames by replacing / by ∕
		139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		140
		141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
		144	our $TICK_START; # for load detecting purposes
		145
		146	our @POST_INIT;
		147
		148	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		149	our $REALLY_UNLOOP; # never set to true, please :)
57		150
58	binmode STDOUT;	151	binmode STDOUT;
59	binmode STDERR;	152	binmode STDERR;
60		153
61	# read virtual server time, if available	154	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	156	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
66	}	159	}
67		160
68	mkdir cf::localdir;	161	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		162
74	# a special map that is always available	163	mkdir $_
75	our $LINK_MAP;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		165
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	166	our $EMERGENCY_POSITION;
		167
		168	sub cf::map::normalise;
		169
		170	#############################################################################
		171
		172	%REFLECT = ();
		173	for (@REFLECT) {
		174	my $reflect = JSON::XS::decode_json $_;
		175	$REFLECT{$reflect->{class}} = $reflect;
		176	}
		177
		178	# this is decidedly evil
		179	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
78		180
79	#############################################################################	181	#############################################################################
80		182
81	=head2 GLOBAL VARIABLES	183	=head2 GLOBAL VARIABLES
82		184
…		…
89	=item $cf::RUNTIME	191	=item $cf::RUNTIME
90		192
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	193	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	194	every server tick.
93		195
94	=item $cf::LIBDIR	196	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		197	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		198	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		199
96	The perl library directory, where extensions and cf-specific modules can	200	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	201	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		202	unique-items directory, player file directory, random maps directory and
		203	database environment.
98		204
99	=item $cf::NOW	205	=item $cf::NOW
100		206
101	The time of the last (current) server tick.	207	The time of the last (current) server tick.
102		208
103	=item $cf::TICK	209	=item $cf::TICK
104		210
105	The interval between server ticks, in seconds.	211	The interval between server ticks, in seconds.
106		212
		213	=item $cf::LOADAVG
		214
		215	The current CPU load on the server (alpha-smoothed), as a value between 0
		216	(none) and 1 (overloaded), indicating how much time is spent on processing
		217	objects per tick. Healthy values are < 0.5.
		218
		219	=item $cf::LOAD
		220
		221	The raw value load value from the last tick.
		222
107	=item %cf::CFG	223	=item %cf::CFG
108		224
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	225	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	226	from wherever your confdir points to.
111		227
		228	=item cf::wait_for_tick, cf::wait_for_tick_begin
		229
		230	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		231	returns directly I<after> the tick processing (and consequently, can only wake one process
		232	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		233
		234	=item @cf::INVOKE_RESULTS
		235
		236	This array contains the results of the last C<invoke ()> call. When
		237	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		238	that call.
		239
		240	=item %cf::REFLECT
		241
		242	Contains, for each (C++) class name, a hash reference with information
		243	about object members (methods, scalars, arrays and flags) and other
		244	metadata, which is useful for introspection.
		245
112	=back	246	=back
113		247
114	=cut	248	=cut
115		249
116	BEGIN {	250	$Coro::State::WARNHOOK = sub {
117	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	251	my $msg = join "", @_;
119	utf8::encode $msg;
120		252
121	$msg .= "\n"	253	$msg .= "\n"
122	unless $msg =~ /\n$/;	254	unless $msg =~ /\n$/;
123		255
		256	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		257
124	LOG llevError, "cfperl: $msg";	258	LOG llevError, $msg;
125	};	259	};
126	}	260
		261	$Coro::State::DIEHOOK = sub {
		262	return unless $^S eq 0; # "eq", not "=="
		263
		264	warn Carp::longmess $_[0];
		265
		266	if ($Coro::current == $Coro::main) {#d#
		267	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		268	return;#d#
		269	}#d#
		270
		271	# kill coroutine otherwise
		272	Coro::terminate
		273	};
127		274
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	275	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	276	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	277	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	278	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	279	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		280	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	281	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		282
135	# we bless all objects into (empty) derived classes to force a method lookup	283	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	284	# within the Safe compartment.
137	for my $pkg (qw(	285	for my $pkg (qw(
138	cf::global cf::attachable	286	cf::global cf::attachable
139	cf::object cf::object::player	287	cf::object cf::object::player
140	cf::client cf::player	288	cf::client cf::player
141	cf::arch cf::living	289	cf::arch cf::living
		290	cf::map cf::mapspace
142	cf::map cf::party cf::region	291	cf::party cf::region
143	)) {	292	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	293	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	294	}
147		295
148	$Event::DIED = sub {	296	$EV::DIED = sub {
149	warn "error in event callback: @_";	297	Carp::cluck "error in event callback: @_";
150	};	298	};
151		299
152	my %ext_pkg;	300	#############################################################################
153	my @exts;
154	my @hook;
155		301
156	=head2 UTILITY FUNCTIONS	302	=head2 UTILITY FUNCTIONS
157		303
158	=over 4	304	=over 4
159		305
160	=cut	306	=item dumpval $ref
161		307
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	308	=cut
163		309
		310	sub dumpval {
		311	eval {
		312	local $SIG{__DIE__};
		313	my $d;
		314	if (1) {
		315	$d = new Data::Dumper([$_[0]], ["*var"]);
		316	$d->Terse(1);
		317	$d->Indent(2);
		318	$d->Quotekeys(0);
		319	$d->Useqq(1);
		320	#$d->Bless(...);
		321	$d->Seen($_[1]) if @_ > 1;
		322	$d = $d->Dump();
		323	}
		324	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		325	$d
		326	} || "[unable to dump $_[0]: '$@']";
		327	}
		328
164	=item $ref = cf::from_json $json	329	=item $ref = cf::decode_json $json
165		330
166	Converts a JSON string into the corresponding perl data structure.	331	Converts a JSON string into the corresponding perl data structure.
167		332
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	333	=item $json = cf::encode_json $ref
176		334
177	Converts a perl data structure into its JSON representation.	335	Converts a perl data structure into its JSON representation.
178		336
179	=cut	337	=cut
180		338
181	sub to_json($) {	339	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		340
186	=item my $guard = cf::guard { BLOCK }	341	sub encode_json($) { $json_coder->encode ($_[0]) }
		342	sub decode_json($) { $json_coder->decode ($_[0]) }
187		343
188	Run the given callback when the guard object gets destroyed (useful for	344	=item cf::post_init { BLOCK }
189	coroutine cancellations).
190		345
191	You can call C<< ->cancel >> on the guard object to stop the block from	346	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
192	being executed.	347	but I<before> the server starts ticking again.
193		348
194	=cut	349	The cdoeblock will have a single boolean argument to indicate whether this
		350	is a reload or not.
195		351
196	sub guard(&) {	352	=cut
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199		353
200	sub cf::guard::cancel {	354	sub post_init(&) {
201	${$_[0]} = sub { };	355	push @POST_INIT, shift;
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}	356	}
207		357
208	=item cf::lock_wait $string	358	=item cf::lock_wait $string
209		359
210	Wait until the given lock is available. See cf::lock_acquire.	360	Wait until the given lock is available. See cf::lock_acquire.
211		361
212	=item my $lock = cf::lock_acquire $string	362	=item my $lock = cf::lock_acquire $string
213		363
214	Wait until the given lock is available and then acquires it and returns	364	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	365	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	366	for example when the coroutine gets canceled), the lock is automatically
217	returned.	367	returned.
218		368
		369	Locks are *not* recursive, locking from the same coro twice results in a
		370	deadlocked coro.
		371
219	Lock names should begin with a unique identifier (for example, find_map	372	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	373	uses map_find and cf::map::load uses map_load).
221		374
222	=cut	375	=item $locked = cf::lock_active $string
223		376
224	our %LOCK;	377	Return true if the lock is currently active, i.e. somebody has locked it.
		378
		379	=cut
		380
		381	our $LOCKS = new Coro::SemaphoreSet;
225		382
226	sub lock_wait($) {	383	sub lock_wait($) {
227	my ($key) = @_;	384	$LOCKS->wait ($_[0]);
228
229	# wait for lock, if any
230	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;
233	}
234	}	385	}
235		386
236	sub lock_acquire($) {	387	sub lock_acquire($) {
237	my ($key) = @_;	388	$LOCKS->guard ($_[0])
		389	}
238		390
239	# wait, to be sure we are not locked	391	sub lock_active($) {
240	lock_wait $key;	392	$LOCKS->count ($_[0]) < 1
		393	}
241		394
242	$LOCK{$key} = [];	395	sub freeze_mainloop {
		396	tick_inhibit_inc;
243		397
244	cf::guard {	398	&Guard::guard (\&tick_inhibit_dec);
245	# wake up all waiters, to be on the safe side	399	}
246	$_->ready for @{ delete $LOCK{$key} };	400
		401	=item cf::periodic $interval, $cb
		402
		403	Like EV::periodic, but randomly selects a starting point so that the actions
		404	get spread over time.
		405
		406	=cut
		407
		408	sub periodic($$) {
		409	my ($interval, $cb) = @_;
		410
		411	my $start = rand List::Util::min 180, $interval;
		412
		413	EV::periodic $start, $interval, 0, $cb
		414	}
		415
		416	=item cf::get_slot $time[, $priority[, $name]]
		417
		418	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		419	This call blocks and returns only when you have at least C<$time> seconds
		420	of cpu time till the next tick. The slot is only valid till the next cede.
		421
		422	The optional C<$name> can be used to identify the job to run. It might be
		423	used for statistical purposes and should identify the same time-class.
		424
		425	Useful for short background jobs.
		426
		427	=cut
		428
		429	our @SLOT_QUEUE;
		430	our $SLOT_QUEUE;
		431	our $SLOT_DECAY = 0.9;
		432
		433	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		434	$SLOT_QUEUE = Coro::async {
		435	$Coro::current->desc ("timeslot manager");
		436
		437	my $signal = new Coro::Signal;
		438	my $busy;
		439
		440	while () {
		441	next_job:
		442
		443	my $avail = cf::till_tick;
		444
		445	for (0 .. $#SLOT_QUEUE) {
		446	if ($SLOT_QUEUE[$_][0] <= $avail) {
		447	$busy = 0;
		448	my $job = splice @SLOT_QUEUE, $_, 1, ();
		449	$job->[2]->send;
		450	Coro::cede;
		451	goto next_job;
		452	} else {
		453	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		454	}
		455	}
		456
		457	if (@SLOT_QUEUE) {
		458	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		459	push @cf::WAIT_FOR_TICK, $signal;
		460	$signal->wait;
		461	} else {
		462	$busy = 0;
		463	Coro::schedule;
		464	}
247	}	465	}
		466	};
		467
		468	sub get_slot($;$$) {
		469	return if tick_inhibit || $Coro::current == $Coro::main;
		470
		471	my ($time, $pri, $name) = @_;
		472
		473	$time = clamp $time, 0.01, $TICK * .6;
		474
		475	my $sig = new Coro::Signal;
		476
		477	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		478	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		479	$SLOT_QUEUE->ready;
		480	$sig->wait;
248	}	481	}
249		482
250	=item cf::async { BLOCK }	483	=item cf::async { BLOCK }
251		484
252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	485	Currently the same as Coro::async_pool, meaning you cannot use
253	error instead of exiting the server in case of a problem.	486	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		487	thing you are allowed to do is call C<prio> on it.
254		488
255	=cut	489	=cut
256		490
257	sub async(&) {	491	BEGIN { *async = \&Coro::async_pool }
258	my ($cb) = @_;
259
260	Coro::async {
261	eval { $cb->() };
262	warn $@ if $@;
263	}
264	}
265		492
266	=item cf::sync_job { BLOCK }	493	=item cf::sync_job { BLOCK }
267		494
268	The design of crossfire+ requires that the main coro ($Coro::main) is	495	The design of Deliantra requires that the main coroutine ($Coro::main)
269	always able to handle events or runnable, as crossfire+ is only partly	496	is always able to handle events or runnable, as Deliantra is only
270	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	497	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		498	acceptable.
271		499
272	If it must be done, put the blocking parts into C<sync_job>. This will run	500	If it must be done, put the blocking parts into C<sync_job>. This will run
273	the given BLOCK in another coroutine while waiting for the result. The	501	the given BLOCK in another coroutine while waiting for the result. The
274	server will be frozen during this time, so the block should either finish	502	server will be frozen during this time, so the block should either finish
275	fast or be very important.	503	fast or be very important.
…		…
278		506
279	sub sync_job(&) {	507	sub sync_job(&) {
280	my ($job) = @_;	508	my ($job) = @_;
281		509
282	if ($Coro::current == $Coro::main) {	510	if ($Coro::current == $Coro::main) {
		511	my $time = AE::time;
		512
283	# this is the main coro, too bad, we have to block	513	# this is the main coro, too bad, we have to block
284	# till the operation succeeds, freezing the server :/	514	# till the operation succeeds, freezing the server :/
285		515
286	# TODO: use suspend/resume instead	516	LOG llevError, Carp::longmess "sync job";#d#
287	# (but this is cancel-safe)	517
288	local $FREEZE = 1;	518	my $freeze_guard = freeze_mainloop;
289		519
290	my $busy = 1;	520	my $busy = 1;
291	my @res;	521	my @res;
292		522
293	(Coro::async {	523	(async {
		524	$Coro::current->desc ("sync job coro");
294	@res = eval { $job->() };	525	@res = eval { $job->() };
295	warn $@ if $@;	526	warn $@ if $@;
296	undef $busy;	527	undef $busy;
297	})->prio (Coro::PRIO_MAX);	528	})->prio (Coro::PRIO_MAX);
298		529
299	while ($busy) {	530	while ($busy) {
		531	if (Coro::nready) {
300	Coro::cede_notself;	532	Coro::cede_notself;
301	Event::one_event unless Coro::nready;	533	} else {
		534	EV::loop EV::LOOP_ONESHOT;
302	}	535	}
		536	}
		537
		538	my $time = AE::time - $time;
		539
		540	$TICK_START += $time; # do not account sync jobs to server load
303		541
304	wantarray ? @res : $res[0]	542	wantarray ? @res : $res[0]
305	} else {	543	} else {
306	# we are in another coroutine, how wonderful, everything just works	544	# we are in another coroutine, how wonderful, everything just works
307		545
308	$job->()	546	$job->()
309	}	547	}
310	}	548	}
311		549
312	=item $coro = cf::coro { BLOCK }	550	=item $coro = cf::async_ext { BLOCK }
313		551
314	Creates and returns a new coro. This coro is automcatially being canceled	552	Like async, but this coro is automatically being canceled when the
315	when the extension calling this is being unloaded.	553	extension calling this is being unloaded.
316		554
317	=cut	555	=cut
318		556
319	sub coro(&) {	557	sub async_ext(&) {
320	my $cb = shift;	558	my $cb = shift;
321		559
322	my $coro = &cf::async ($cb);	560	my $coro = &Coro::async ($cb);
323		561
324	$coro->on_destroy (sub {	562	$coro->on_destroy (sub {
325	delete $EXT_CORO{$coro+0};	563	delete $EXT_CORO{$coro+0};
326	});	564	});
327	$EXT_CORO{$coro+0} = $coro;	565	$EXT_CORO{$coro+0} = $coro;
328		566
329	$coro	567	$coro
330	}	568	}
331		569
332	sub write_runtime {	570	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		571
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	572	Executes the given code block with the given arguments in a seperate
336	or return;	573	process, returning the results. Everything must be serialisable with
		574	Coro::Storable. May, of course, block. Note that the executed sub may
		575	never block itself or use any form of event handling.
337		576
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	577	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		578
342	aio_fsync $fh	579	sub fork_call(&@) {
343	and return;	580	my ($cb, @args) = @_;
344		581
345	close $fh	582	# we seemingly have to make a local copy of the whole thing,
346	or return;	583	# otherwise perl prematurely frees the stuff :/
		584	# TODO: investigate and fix (likely this will be rather laborious)
347		585
348	aio_rename "$runtime~", $runtime	586	my @res = Coro::Util::fork_eval {
349	and return;	587	reset_signals;
		588	&$cb
		589	}, @args;
350		590
		591	wantarray ? @res : $res[-1]
		592	}
		593
		594	sub objinfo {
351	1	595	(
		596	"counter value" => cf::object::object_count,
		597	"objects created" => cf::object::create_count,
		598	"objects destroyed" => cf::object::destroy_count,
		599	"freelist size" => cf::object::free_count,
		600	"allocated objects" => cf::object::objects_size,
		601	"active objects" => cf::object::actives_size,
		602	)
		603	}
		604
		605	=item $coin = coin_from_name $name
		606
		607	=cut
		608
		609	our %coin_alias = (
		610	"silver" => "silvercoin",
		611	"silvercoin" => "silvercoin",
		612	"silvercoins" => "silvercoin",
		613	"gold" => "goldcoin",
		614	"goldcoin" => "goldcoin",
		615	"goldcoins" => "goldcoin",
		616	"platinum" => "platinacoin",
		617	"platinumcoin" => "platinacoin",
		618	"platinumcoins" => "platinacoin",
		619	"platina" => "platinacoin",
		620	"platinacoin" => "platinacoin",
		621	"platinacoins" => "platinacoin",
		622	"royalty" => "royalty",
		623	"royalties" => "royalty",
		624	);
		625
		626	sub coin_from_name($) {
		627	$coin_alias{$_[0]}
		628	? cf::arch::find $coin_alias{$_[0]}
		629	: undef
		630	}
		631
		632	=item $value = cf::db_get $family => $key
		633
		634	Returns a single value from the environment database.
		635
		636	=item cf::db_put $family => $key => $value
		637
		638	Stores the given C<$value> in the family. It can currently store binary
		639	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		640
		641	=item $db = cf::db_table "name"
		642
		643	Create and/or open a new database table. The string must not be "db" and must be unique
		644	within each server.
		645
		646	=cut
		647
		648	sub db_table($) {
		649	my ($name) = @_;
		650	my $db = BDB::db_create $DB_ENV;
		651
		652	eval {
		653	$db->set_flags (BDB::CHKSUM);
		654
		655	utf8::encode $name;
		656	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		657	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		658	cf::cleanup "db_open(db): $!" if $!;
		659	};
		660	cf::cleanup "db_open(db): $@" if $@;
		661
		662	$db
		663	}
		664
		665	our $DB;
		666
		667	sub db_init {
		668	cf::sync_job {
		669	$DB ||= db_table "db";
		670	};
		671	}
		672
		673	sub db_get($$) {
		674	my $key = "$_[0]/$_[1]";
		675
		676	cf::sync_job {
		677	BDB::db_get $DB, undef, $key, my $data;
		678
		679	$! ? ()
		680	: $data
		681	}
		682	}
		683
		684	sub db_put($$$) {
		685	BDB::dbreq_pri 4;
		686	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		687	}
		688
		689	=item cf::cache $id => [$paths...], $processversion => $process
		690
		691	Generic caching function that returns the value of the resource $id,
		692	caching and regenerating as required.
		693
		694	This function can block.
		695
		696	=cut
		697
		698	sub cache {
		699	my ($id, $src, $processversion, $process) = @_;
		700
		701	my $meta =
		702	join "\x00",
		703	$processversion,
		704	map {
		705	aio_stat $_
		706	and Carp::croak "$_: $!";
		707
		708	($_, (stat _)[7,9])
		709	} @$src;
		710
		711	my $dbmeta = db_get cache => "$id/meta";
		712	if ($dbmeta ne $meta) {
		713	# changed, we may need to process
		714
		715	my @data;
		716	my $md5;
		717
		718	for (0 .. $#$src) {
		719	0 <= aio_load $src->[$_], $data[$_]
		720	or Carp::croak "$src->[$_]: $!";
		721	}
		722
		723	# if processing is expensive, check
		724	# checksum first
		725	if (1) {
		726	$md5 =
		727	join "\x00",
		728	$processversion,
		729	map {
		730	cf::cede_to_tick;
		731	($src->[$_], Digest::MD5::md5_hex $data[$_])
		732	} 0.. $#$src;
		733
		734
		735	my $dbmd5 = db_get cache => "$id/md5";
		736	if ($dbmd5 eq $md5) {
		737	db_put cache => "$id/meta", $meta;
		738
		739	return db_get cache => "$id/data";
		740	}
		741	}
		742
		743	my $t1 = Time::HiRes::time;
		744	my $data = $process->(\@data);
		745	my $t2 = Time::HiRes::time;
		746
		747	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		748
		749	db_put cache => "$id/data", $data;
		750	db_put cache => "$id/md5" , $md5;
		751	db_put cache => "$id/meta", $meta;
		752
		753	return $data;
		754	}
		755
		756	db_get cache => "$id/data"
		757	}
		758
		759	=item cf::datalog type => key => value, ...
		760
		761	Log a datalog packet of the given type with the given key-value pairs.
		762
		763	=cut
		764
		765	sub datalog($@) {
		766	my ($type, %kv) = @_;
		767	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
352	}	768	}
353		769
354	=back	770	=back
355		771
356	=cut	772	=cut
357		773
358	#############################################################################	774	#############################################################################
359		775
360	package cf::path;
361
362	sub new {
363	my ($class, $path, $base) = @_;
364
365	$path = $path->as_string if ref $path;
366
367	my $self = bless { }, $class;
368
369	# {... are special paths that are not touched
370	# ?xxx/... are special absolute paths
371	# ?random/... random maps
372	# /! non-realised random map exit
373	# /... normal maps
374	# ~/... per-player maps without a specific player (DO NOT USE)
375	# ~user/... per-player map of a specific user
376
377	if ($path =~ /^{/) {
378	# fine as it is
379	} elsif ($path =~ s{^\?random/}{}) {
380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381	$self->{random} = cf::from_json $data;
382	} else {
383	if ($path =~ s{^~([^/]+)?}{}) {
384	$self->{user_rel} = 1;
385
386	if (defined $1) {
387	$self->{user} = $1;
388	} elsif ($base =~ m{^~([^/]+)/}) {
389	$self->{user} = $1;
390	} else {
391	warn "cannot resolve user-relative path without user <$path,$base>\n";
392	}
393	} elsif ($path =~ /^\//) {
394	# already absolute
395	} else {
396	$base =~ s{[^/]+/?$}{};
397	return $class->new ("$base/$path");
398	}
399
400	for ($path) {
401	redo if s{/\.?/}{/};
402	redo if s{/[^/]+/\.\./}{/};
403	}
404	}
405
406	$self->{path} = $path;
407
408	$self
409	}
410
411	# the name / primary key / in-game path
412	sub as_string {
413	my ($self) = @_;
414
415	$self->{user_rel} ? "~$self->{user}$self->{path}"
416	: $self->{random} ? "?random/$self->{path}"
417	: $self->{path}
418	}
419
420	# the displayed name, this is a one way mapping
421	sub visible_name {
422	my ($self) = @_;
423
424	# if (my $rmp = $self->{random}) {
425	# # todo: be more intelligent about this
426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427	# } else {
428	$self->as_string
429	# }
430	}
431
432	# escape the /'s in the path
433	sub _escaped_path {
434	# ∕ is U+2215
435	(my $path = $_[0]{path}) =~ s/\//∕/g;
436	$path
437	}
438
439	# the original (read-only) location
440	sub load_path {
441	my ($self) = @_;
442
443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444	}
445
446	# the temporary/swap location
447	sub save_path {
448	my ($self) = @_;
449
450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453	}
454
455	# the unique path, might be eq to save_path
456	sub uniq_path {
457	my ($self) = @_;
458
459	$self->{user_rel} || $self->{random}
460	? undef
461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462	}
463
464	# return random map parameters, or undef
465	sub random_map_params {
466	my ($self) = @_;
467
468	$self->{random}
469	}
470
471	# this is somewhat ugly, but style maps do need special treatment
472	sub is_style_map {
473	$_[0]{path} =~ m{^/styles/}
474	}
475
476	package cf;
477
478	#############################################################################
479
480	=head2 ATTACHABLE OBJECTS	776	=head2 ATTACHABLE OBJECTS
481		777
482	Many objects in crossfire are so-called attachable objects. That means you can	778	Many objects in deliantra are so-called attachable objects. That means you can
483	attach callbacks/event handlers (a collection of which is called an "attachment")	779	attach callbacks/event handlers (a collection of which is called an "attachment")
484	to it. All such attachable objects support the following methods.	780	to it. All such attachable objects support the following methods.
485		781
486	In the following description, CLASS can be any of C<global>, C<object>	782	In the following description, CLASS can be any of C<global>, C<object>
487	C<player>, C<client> or C<map> (i.e. the attachable objects in	783	C<player>, C<client> or C<map> (i.e. the attachable objects in
488	crossfire+).	784	Deliantra).
489		785
490	=over 4	786	=over 4
491		787
492	=item $attachable->attach ($attachment, key => $value...)	788	=item $attachable->attach ($attachment, key => $value...)
493		789
…		…
537	=item cf::CLASS::attachment $name, ...	833	=item cf::CLASS::attachment $name, ...
538		834
539	Register an attachment by C<$name> through which attachable objects of the	835	Register an attachment by C<$name> through which attachable objects of the
540	given CLASS can refer to this attachment.	836	given CLASS can refer to this attachment.
541		837
542	Some classes such as crossfire maps and objects can specify attachments	838	Some classes such as deliantra maps and objects can specify attachments
543	that are attached at load/instantiate time, thus the need for a name.	839	that are attached at load/instantiate time, thus the need for a name.
544		840
545	These calls expect any number of the following handler/hook descriptions:	841	These calls expect any number of the following handler/hook descriptions:
546		842
547	=over 4	843	=over 4
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	903	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	904	our @CB_MAP = ();
609		905
610	my %attachment;	906	my %attachment;
611		907
		908	sub cf::attachable::thawer_merge {
		909	# simply override everything except _meta
		910	local $_[0]{_meta};
		911	%{$_[0]} = %{$_[1]};
		912	}
		913
612	sub _attach_cb($$$$) {	914	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	915	my ($registry, $event, $prio, $cb) = @_;
614		916
615	use sort 'stable';	917	use sort 'stable';
616		918
…		…
650	$registry = $CB_TYPE[$object_type] ||= [];	952	$registry = $CB_TYPE[$object_type] ||= [];
651		953
652	} elsif ($type eq "subtype") {	954	} elsif ($type eq "subtype") {
653	defined $object_type or Carp::croak "subtype specified without type";	955	defined $object_type or Carp::croak "subtype specified without type";
654	my $object_subtype = shift @arg;	956	my $object_subtype = shift @arg;
655	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	957	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
656		958
657	} elsif ($type eq "package") {	959	} elsif ($type eq "package") {
658	my $pkg = shift @arg;	960	my $pkg = shift @arg;
659		961
660	while (my ($name, $id) = each %cb_id) {	962	while (my ($name, $id) = each %cb_id) {
…		…
689	_attach $registry, $klass, @attach;	991	_attach $registry, $klass, @attach;
690	}	992	}
691		993
692	$obj->{$name} = \%arg;	994	$obj->{$name} = \%arg;
693	} else {	995	} else {
694	warn "object uses attachment '$name' that is not available, postponing.\n";	996	warn "object uses attachment '$name' which is not available, postponing.\n";
695	}	997	}
696		998
697	$obj->{_attachment}{$name} = undef;	999	$obj->{_attachment}{$name} = undef;
698	}	1000	}
699		1001
…		…
701	if (ref $_[0]) {	1003	if (ref $_[0]) {
702	_object_attach @_;	1004	_object_attach @_;
703	} else {	1005	} else {
704	_attach shift->_attach_registry, @_;	1006	_attach shift->_attach_registry, @_;
705	}	1007	}
		1008	_recalc_want;
706	};	1009	};
707		1010
708	# all those should be optimised	1011	# all those should be optimised
709	sub cf::attachable::detach {	1012	sub cf::attachable::detach {
710	my ($obj, $name) = @_;	1013	my ($obj, $name) = @_;
…		…
713	delete $obj->{_attachment}{$name};	1016	delete $obj->{_attachment}{$name};
714	reattach ($obj);	1017	reattach ($obj);
715	} else {	1018	} else {
716	Carp::croak "cannot, currently, detach class attachments";	1019	Carp::croak "cannot, currently, detach class attachments";
717	}	1020	}
		1021	_recalc_want;
718	};	1022	};
719		1023
720	sub cf::attachable::attached {	1024	sub cf::attachable::attached {
721	my ($obj, $name) = @_;	1025	my ($obj, $name) = @_;
722		1026
…		…
737	";	1041	";
738	die if $@;	1042	die if $@;
739	}	1043	}
740		1044
741	our $override;	1045	our $override;
742	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1046	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
743		1047
744	sub override {	1048	sub override {
745	$override = 1;	1049	$override = 1;
746	@invoke_results = ();	1050	@INVOKE_RESULTS = (@_);
747	}	1051	}
748		1052
749	sub do_invoke {	1053	sub do_invoke {
750	my $event = shift;	1054	my $event = shift;
751	my $callbacks = shift;	1055	my $callbacks = shift;
752		1056
753	@invoke_results = ();	1057	@INVOKE_RESULTS = ();
754		1058
755	local $override;	1059	local $override;
756		1060
757	for (@$callbacks) {	1061	for (@$callbacks) {
758	eval { &{$_->[1]} };	1062	eval { &{$_->[1]} };
…		…
767	}	1071	}
768		1072
769	0	1073	0
770	}	1074	}
771		1075
772	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1076	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
773		1077
774	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1078	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
775		1079
776	Generate an object-specific event with the given arguments.	1080	Generate an object-specific event with the given arguments.
777		1081
778	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1082	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
779	removed in future versions), and there is no public API to access override	1083	removed in future versions), and there is no public API to access override
780	results (if you must, access C<@cf::invoke_results> directly).	1084	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
781		1085
782	=back	1086	=back
783		1087
784	=cut	1088	=cut
785		1089
786	#############################################################################	1090	#############################################################################
787	# object support	1091	# object support
		1092
		1093	sub _object_equal($$);
		1094	sub _object_equal($$) {
		1095	my ($a, $b) = @_;
		1096
		1097	return 0 unless (ref $a) eq (ref $b);
		1098
		1099	if ("HASH" eq ref $a) {
		1100	my @ka = keys %$a;
		1101	my @kb = keys %$b;
		1102
		1103	return 0 if @ka != @kb;
		1104
		1105	for (0 .. $#ka) {
		1106	return 0 unless $ka[$_] eq $kb[$_];
		1107	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1108	}
		1109
		1110	} elsif ("ARRAY" eq ref $a) {
		1111
		1112	return 0 if @$a != @$b;
		1113
		1114	for (0 .. $#$a) {
		1115	return 0 unless _object_equal $a->[$_], $b->[$_];
		1116	}
		1117
		1118	} elsif ($a ne $b) {
		1119	return 0;
		1120	}
		1121
		1122	1
		1123	}
		1124
		1125	our $SLOW_MERGES;#d#
		1126	sub _can_merge {
		1127	my ($ob1, $ob2) = @_;
		1128
		1129	++$SLOW_MERGES;#d#
		1130
		1131	# we do the slow way here
		1132	return _object_equal $ob1, $ob2
		1133	}
788		1134
789	sub reattach {	1135	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	1136	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	1137	my ($obj) = @_;
		1138
		1139	# no longer needed after getting rid of delete_package?
		1140	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		1141
793	my $registry = $obj->registry;	1142	my $registry = $obj->registry;
794		1143
795	@$registry = ();	1144	@$registry = ();
796		1145
…		…
811	cf::attachable->attach (	1160	cf::attachable->attach (
812	prio => -1000000,	1161	prio => -1000000,
813	on_instantiate => sub {	1162	on_instantiate => sub {
814	my ($obj, $data) = @_;	1163	my ($obj, $data) = @_;
815		1164
816	$data = from_json $data;	1165	$data = decode_json $data;
817		1166
818	for (@$data) {	1167	for (@$data) {
819	my ($name, $args) = @$_;	1168	my ($name, $args) = @$_;
820		1169
821	$obj->attach ($name, %{$args || {} });	1170	$obj->attach ($name, %{$args || {} });
…		…
837	sub object_freezer_save {	1186	sub object_freezer_save {
838	my ($filename, $rdata, $objs) = @_;	1187	my ($filename, $rdata, $objs) = @_;
839		1188
840	sync_job {	1189	sync_job {
841	if (length $$rdata) {	1190	if (length $$rdata) {
		1191	utf8::decode (my $decname = $filename);
842	warn sprintf "saving %s (%d,%d)\n",	1192	warn sprintf "saving %s (%d,%d)\n",
843	$filename, length $$rdata, scalar @$objs;	1193	$decname, length $$rdata, scalar @$objs;
844		1194
845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1195	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846	chmod SAVE_MODE, $fh;	1196	aio_chmod $fh, SAVE_MODE;
847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1197	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1198	if ($cf::USE_FSYNC) {
		1199	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;
848	aio_fsync $fh;	1200	aio_fsync $fh;
		1201	}
849	close $fh;	1202	aio_close $fh;
850		1203
851	if (@$objs) {	1204	if (@$objs) {
852	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1205	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
853	chmod SAVE_MODE, $fh;	1206	aio_chmod $fh, SAVE_MODE;
854	my $data = Storable::nfreeze { version => 1, objs => $objs };	1207	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
855	aio_write $fh, 0, (length $data), $data, 0;	1208	aio_write $fh, 0, (length $data), $data, 0;
		1209	if ($cf::USE_FSYNC) {
		1210	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;
856	aio_fsync $fh;	1211	aio_fsync $fh;
		1212	}
857	close $fh;	1213	aio_close $fh;
858	aio_rename "$filename.pst~", "$filename.pst";	1214	aio_rename "$filename.pst~", "$filename.pst";
859	}	1215	}
860	} else {	1216	} else {
861	aio_unlink "$filename.pst";	1217	aio_unlink "$filename.pst";
862	}	1218	}
863		1219
864	aio_rename "$filename~", $filename;	1220	aio_rename "$filename~", $filename;
		1221
		1222	$filename =~ s%/[^/]+$%%;
		1223	aio_pathsync $filename if $cf::USE_FSYNC;
865	} else {	1224	} else {
866	warn "FATAL: $filename~: $!\n";	1225	warn "unable to save objects: $filename~: $!\n";
867	}	1226	}
868	} else {	1227	} else {
869	aio_unlink $filename;	1228	aio_unlink $filename;
870	aio_unlink "$filename.pst";	1229	aio_unlink "$filename.pst";
871	}	1230	}
872	}	1231	};
873	}	1232	}
874		1233
875	sub object_freezer_as_string {	1234	sub object_freezer_as_string {
876	my ($rdata, $objs) = @_;	1235	my ($rdata, $objs) = @_;
877		1236
…		…
889	or return;	1248	or return;
890		1249
891	unless (aio_stat "$filename.pst") {	1250	unless (aio_stat "$filename.pst") {
892	(aio_load "$filename.pst", $av) >= 0	1251	(aio_load "$filename.pst", $av) >= 0
893	or return;	1252	or return;
		1253
894	$av = eval { (Storable::thaw $av)->{objs} };	1254	my $st = eval { Coro::Storable::thaw $av };
		1255	$av = $st->{objs};
895	}	1256	}
896		1257
		1258	utf8::decode (my $decname = $filename);
897	warn sprintf "loading %s (%d)\n",	1259	warn sprintf "loading %s (%d,%d)\n",
898	$filename, length $data, scalar @{$av || []};#d#	1260	$decname, length $data, scalar @{$av || []};
		1261
899	return ($data, $av);	1262	($data, $av)
900	}	1263	}
		1264
		1265	=head2 COMMAND CALLBACKS
		1266
		1267	=over 4
		1268
		1269	=cut
901		1270
902	#############################################################################	1271	#############################################################################
903	# command handling &c	1272	# command handling &c
904		1273
905	=item cf::register_command $name => \&callback($ob,$args);	1274	=item cf::register_command $name => \&callback($ob,$args);
…		…
918	push @{ $COMMAND{$name} }, [$caller, $cb];	1287	push @{ $COMMAND{$name} }, [$caller, $cb];
919	}	1288	}
920		1289
921	=item cf::register_extcmd $name => \&callback($pl,$packet);	1290	=item cf::register_extcmd $name => \&callback($pl,$packet);
922		1291
923	Register a callbackf ro execution when the client sends an extcmd packet.	1292	Register a callback for execution when the client sends an (synchronous)
		1293	extcmd packet. Ext commands will be processed in the order they are
		1294	received by the server, like other user commands. The first argument is
		1295	the logged-in player. Ext commands can only be processed after a player
		1296	has logged in successfully.
924		1297
925	If the callback returns something, it is sent back as if reply was being	1298	If the callback returns something, it is sent back as if reply was being
926	called.	1299	called.
927		1300
		1301	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1302
		1303	Register a callback for execution when the client sends an (asynchronous)
		1304	exticmd packet. Exti commands are processed by the server as soon as they
		1305	are received, i.e. out of order w.r.t. other commands. The first argument
		1306	is a client socket. Exti commands can be received anytime, even before
		1307	log-in.
		1308
		1309	If the callback returns something, it is sent back as if reply was being
		1310	called.
		1311
928	=cut	1312	=cut
929		1313
930	sub register_extcmd {	1314	sub register_extcmd {
931	my ($name, $cb) = @_;	1315	my ($name, $cb) = @_;
932		1316
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	1317	$EXTCMD{$name} = $cb;
937	}	1318	}
		1319
		1320	sub register_exticmd {
		1321	my ($name, $cb) = @_;
		1322
		1323	$EXTICMD{$name} = $cb;
		1324	}
		1325
		1326	use File::Glob ();
938		1327
939	cf::player->attach (	1328	cf::player->attach (
940	on_command => sub {	1329	on_unknown_command => sub {
941	my ($pl, $name, $params) = @_;	1330	my ($pl, $name, $params) = @_;
942		1331
943	my $cb = $COMMAND{$name}	1332	my $cb = $COMMAND{$name}
944	or return;	1333	or return;
945		1334
…		…
950	cf::override;	1339	cf::override;
951	},	1340	},
952	on_extcmd => sub {	1341	on_extcmd => sub {
953	my ($pl, $buf) = @_;	1342	my ($pl, $buf) = @_;
954		1343
955	my $msg = eval { from_json $buf };	1344	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
956		1345
957	if (ref $msg) {	1346	if (ref $msg) {
		1347	my ($type, $reply, @payload) =
		1348	"ARRAY" eq ref $msg
		1349	? @$msg
		1350	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1351
		1352	my @reply;
		1353
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1354	if (my $cb = $EXTCMD{$type}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	1355	@reply = $cb->($pl, @payload);
960	$pl->ext_reply ($msg->{msgid}, %reply);
961	}
962	}	1356	}
		1357
		1358	$pl->ext_reply ($reply, @reply)
		1359	if $reply;
		1360
963	} else {	1361	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1362	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
965	}	1363	}
966		1364
967	cf::override;	1365	cf::override;
968	},	1366	},
969	);	1367	);
970		1368
971	sub register {	1369	# "readahead" all extensions
972	my ($base, $pkg) = @_;
973
974	#TODO
975	}
976
977	sub load_extension {	1370	sub cache_extensions {
978	my ($path) = @_;	1371	my $grp = IO::AIO::aio_group;
979		1372
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1373	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
981	my $base = $1;	1374	for (grep /\.ext$/, @{$_[0]}) {
982	my $pkg = $1;	1375	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
983	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";
985
986	warn "loading '$path' into '$pkg'\n";
987
988	open my $fh, "<:utf8", $path
989	or die "$path: $!";
990
991	my $source =
992	"package $pkg; use strict; use utf8;\n"
993	. "#line 1 \"$path\"\n{\n"
994	. (do { local $/; <$fh> })
995	. "\n};\n1";
996
997	eval $source
998	or die $@ ? "$path: $@\n"
999	: "extension disabled.\n";
1000
1001	push @exts, $pkg;
1002	$ext_pkg{$base} = $pkg;
1003
1004	# no strict 'refs';
1005	# @{"$pkg\::ISA"} = ext::;
1006
1007	register $base, $pkg;
1008	}
1009
1010	sub unload_extension {
1011	my ($pkg) = @_;
1012
1013	warn "removing extension $pkg\n";
1014
1015	# remove hooks
1016	#TODO
1017	# for my $idx (0 .. $#PLUGIN_EVENT) {
1018	# delete $hook[$idx]{$pkg};
1019	# }
1020
1021	# remove commands
1022	for my $name (keys %COMMAND) {
1023	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025	if (@cb) {
1026	$COMMAND{$name} = \@cb;
1027	} else {
1028	delete $COMMAND{$name};
1029	}	1376	}
1030	}	1377	};
1031		1378
1032	# remove extcmds	1379	$grp
1033	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034	delete $EXTCMD{$name};
1035	}
1036
1037	if (my $cb = $pkg->can ("unload")) {
1038	eval {
1039	$cb->($pkg);
1040	1
1041	} or warn "$pkg unloaded, but with errors: $@";
1042	}
1043
1044	Symbol::delete_package $pkg;
1045	}	1380	}
1046		1381
1047	sub load_extensions {	1382	sub load_extensions {
		1383	cf::sync_job {
		1384	my %todo;
		1385
1048	for my $ext (<$LIBDIR/*.ext>) {	1386	for my $path (<$LIBDIR/*.ext>) {
1049	next unless -r $ext;	1387	next unless -r $path;
1050	eval {	1388
1051	load_extension $ext;	1389	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1390	my $base = $1;
		1391	my $pkg = $1;
		1392	$pkg =~ s/[^[:word:]]/_/g;
		1393	$pkg = "ext::$pkg";
		1394
		1395	open my $fh, "<:utf8", $path
		1396	or die "$path: $!";
		1397
		1398	my $source = do { local $/; <$fh> };
		1399
		1400	my %ext = (
		1401	path => $path,
		1402	base => $base,
		1403	pkg => $pkg,
		1404	);
		1405
		1406	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1407	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1408
		1409	$ext{source} =
		1410	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1411	. "#line 1 \"$path\"\n{\n"
		1412	. $source
		1413	. "\n};\n1";
		1414
		1415	$todo{$base} = \%ext;
		1416	}
		1417
		1418	my $pass = 0;
		1419	my %done;
		1420	while (%todo) {
		1421	my $progress;
		1422
		1423	++$pass;
		1424
		1425	ext:
		1426	while (my ($k, $v) = each %todo) {
		1427	for (split /,\s*/, $v->{meta}{depends}) {
		1428	next ext
		1429	unless exists $done{$_};
		1430	}
		1431
		1432	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1433
		1434	my $active = eval $v->{source};
		1435
		1436	if (length $@) {
		1437	warn "$v->{path}: $@\n";
		1438
		1439	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1440	if exists $v->{meta}{mandatory};
		1441	} else {
		1442	$done{$k} = delete $todo{$k};
		1443	push @EXTS, $v->{pkg};
		1444	$progress = 1;
		1445
		1446	warn "$v->{base}: extension inactive.\n"
		1447	unless $active;
		1448	}
1052	1	1449	}
1053	} or warn "$ext not loaded: $@";	1450
		1451	unless ($progress) {
		1452	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1453
		1454	while (my ($k, $v) = each %todo) {
		1455	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1456	if exists $v->{meta}{mandatory};
		1457	}
		1458	}
		1459	}
1054	}	1460	};
1055	}	1461	}
1056		1462
1057	#############################################################################	1463	#############################################################################
1058	# load/save/clean perl data associated with a map
1059		1464
1060	*cf::mapsupport::on_clean = sub {	1465	=back
		1466
		1467	=head2 CORE EXTENSIONS
		1468
		1469	Functions and methods that extend core deliantra objects.
		1470
		1471	=cut
		1472
		1473	package cf::player;
		1474
		1475	use Coro::AIO;
		1476
		1477	=head3 cf::player
		1478
		1479	=over 4
		1480
		1481	=item cf::player::num_playing
		1482
		1483	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1484
		1485	=cut
		1486
		1487	sub num_playing {
		1488	scalar grep
		1489	$_->ob->map
		1490	&& !$_->hidden
		1491	&& !$_->ob->flag (cf::FLAG_WIZ),
		1492	cf::player::list
		1493	}
		1494
		1495	=item cf::player::find $login
		1496
		1497	Returns the given player object, loading it if necessary (might block).
		1498
		1499	=cut
		1500
		1501	sub playerdir($) {
		1502	"$PLAYERDIR/"
		1503	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1504	}
		1505
		1506	sub path($) {
		1507	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1508
		1509	(playerdir $login) . "/playerdata"
		1510	}
		1511
		1512	sub find_active($) {
		1513	$cf::PLAYER{$_[0]}
		1514	and $cf::PLAYER{$_[0]}->active
		1515	and $cf::PLAYER{$_[0]}
		1516	}
		1517
		1518	sub exists($) {
1061	my ($map) = @_;	1519	my ($login) = @_;
1062		1520
1063	my $path = $map->tmpname;	1521	$cf::PLAYER{$login}
1064	defined $path or return;	1522	or !aio_stat path $login
1065
1066	unlink "$path.pst";
1067	};
1068
1069	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071	#############################################################################
1072	# load/save perl data associated with player->ob objects
1073
1074	sub all_objects(@) {
1075	@_, map all_objects ($_->inv), @_
1076	}	1523	}
1077		1524
1078	# TODO: compatibility cruft, remove when no longer needed	1525	sub find($) {
		1526	return $cf::PLAYER{$_[0]} || do {
		1527	my $login = $_[0];
		1528
		1529	my $guard = cf::lock_acquire "user_find:$login";
		1530
		1531	$cf::PLAYER{$_[0]} || do {
		1532	# rename old playerfiles to new ones
		1533	#TODO: remove when no longer required
		1534	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1535	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1536	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1537	aio_unlink +(playerdir $login) . "/$login.pl";
		1538
		1539	my $f = new_from_file cf::object::thawer path $login
		1540	or return;
		1541
		1542	my $pl = cf::player::load_pl $f
		1543	or return;
		1544
		1545	local $cf::PLAYER_LOADING{$login} = $pl;
		1546	$f->resolve_delayed_derefs;
		1547	$cf::PLAYER{$login} = $pl
		1548	}
		1549	}
		1550	}
		1551
1079	cf::player->attach (	1552	cf::player->attach (
1080	on_load => sub {	1553	on_load => sub {
1081	my ($pl, $path) = @_;	1554	my ($pl, $path) = @_;
1082		1555
1083	for my $o (all_objects $pl->ob) {	1556	# restore slots saved in save, below
1084	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1557	my $slots = delete $pl->{_slots};
1085	$o->set_ob_key_value ("_perl_data");
1086		1558
1087	%$o = %{ Storable::thaw pack "H*", $value };	1559	$pl->ob->current_weapon ($slots->[0]);
1088	}	1560	$pl->combat_ob ($slots->[1]);
1089	}	1561	$pl->ranged_ob ($slots->[2]);
1090	},	1562	},
1091	);	1563	);
1092		1564
1093	#############################################################################	1565	sub save($) {
		1566	my ($pl) = @_;
1094		1567
1095	=head2 CORE EXTENSIONS	1568	return if $pl->{deny_save};
1096		1569
1097	Functions and methods that extend core crossfire objects.	1570	my $path = path $pl;
		1571	my $guard = cf::lock_acquire "user_save:$path";
1098		1572
1099	=head3 cf::player	1573	return if $pl->{deny_save};
		1574
		1575	aio_mkdir playerdir $pl, 0770;
		1576	$pl->{last_save} = $cf::RUNTIME;
		1577
		1578	cf::get_slot 0.01;
		1579
		1580	# save slots, to be restored later
		1581	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1582
		1583	$pl->save_pl ($path);
		1584	cf::cede_to_tick;
		1585	}
		1586
		1587	sub new($) {
		1588	my ($login) = @_;
		1589
		1590	my $self = create;
		1591
		1592	$self->ob->name ($login);
		1593	$self->{deny_save} = 1;
		1594
		1595	$cf::PLAYER{$login} = $self;
		1596
		1597	$self
		1598	}
		1599
		1600	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1601
		1602	=cut
		1603
		1604	sub send_msg {
		1605	my $ns = shift->ns
		1606	or return;
		1607	$ns->send_msg (@_);
		1608	}
		1609
		1610	=item $pl->quit_character
		1611
		1612	Nukes the player without looking back. If logged in, the connection will
		1613	be destroyed. May block for a long time.
		1614
		1615	=cut
		1616
		1617	sub quit_character {
		1618	my ($pl) = @_;
		1619
		1620	my $name = $pl->ob->name;
		1621
		1622	$pl->{deny_save} = 1;
		1623	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1624
		1625	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1626	$pl->deactivate;
		1627	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1628	$pl->ob->check_score;
		1629	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1630	$pl->ns->destroy if $pl->ns;
		1631
		1632	my $path = playerdir $pl;
		1633	my $temp = "$path~$cf::RUNTIME~deleting~";
		1634	aio_rename $path, $temp;
		1635	delete $cf::PLAYER{$pl->ob->name};
		1636	$pl->destroy;
		1637
		1638	my $prefix = qr<^~\Q$name\E/>;
		1639
		1640	# nuke player maps
		1641	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1642
		1643	IO::AIO::aio_rmtree $temp;
		1644	}
		1645
		1646	=item $pl->kick
		1647
		1648	Kicks a player out of the game. This destroys the connection.
		1649
		1650	=cut
		1651
		1652	sub kick {
		1653	my ($pl, $kicker) = @_;
		1654
		1655	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1656	$pl->killer ("kicked");
		1657	$pl->ns->destroy;
		1658	}
		1659
		1660	=item cf::player::list_logins
		1661
		1662	Returns am arrayref of all valid playernames in the system, can take a
		1663	while and may block, so not sync_job-capable, ever.
		1664
		1665	=cut
		1666
		1667	sub list_logins {
		1668	my $dirs = aio_readdir $PLAYERDIR
		1669	or return [];
		1670
		1671	my @logins;
		1672
		1673	for my $login (@$dirs) {
		1674	my $path = path $login;
		1675
		1676	# a .pst is a dead give-away for a valid player
		1677	# if no pst file found, open and chekc for blocked users
		1678	if (aio_stat "$path.pst") {
		1679	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1680	aio_read $fh, 0, 512, my $buf, 0 or next;
		1681	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1682	}
		1683
		1684	utf8::decode $login;
		1685	push @logins, $login;
		1686	}
		1687
		1688	\@logins
		1689	}
		1690
		1691	=item $player->maps
		1692
		1693	Returns an arrayref of map paths that are private for this
		1694	player. May block.
		1695
		1696	=cut
		1697
		1698	sub maps($) {
		1699	my ($pl) = @_;
		1700
		1701	$pl = ref $pl ? $pl->ob->name : $pl;
		1702
		1703	my $files = aio_readdir playerdir $pl
		1704	or return;
		1705
		1706	my @paths;
		1707
		1708	for (@$files) {
		1709	utf8::decode $_;
		1710	next if /\.(?:pl|pst)$/;
		1711	next unless /^$PATH_SEP/o;
		1712
		1713	push @paths, cf::map::normalise "~$pl/$_";
		1714	}
		1715
		1716	\@paths
		1717	}
		1718
		1719	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1720
		1721	Expand deliantra pod fragments into protocol xml.
		1722
		1723	=item $player->ext_reply ($msgid, @msg)
		1724
		1725	Sends an ext reply to the player.
		1726
		1727	=cut
		1728
		1729	sub ext_reply($$@) {
		1730	my ($self, $id, @msg) = @_;
		1731
		1732	$self->ns->ext_reply ($id, @msg)
		1733	}
		1734
		1735	=item $player->ext_msg ($type, @msg)
		1736
		1737	Sends an ext event to the client.
		1738
		1739	=cut
		1740
		1741	sub ext_msg($$@) {
		1742	my ($self, $type, @msg) = @_;
		1743
		1744	$self->ns->ext_msg ($type, @msg);
		1745	}
		1746
		1747	=head3 cf::region
1100		1748
1101	=over 4	1749	=over 4
1102		1750
1103	=item cf::player::exists $login
1104
1105	Returns true when the given account exists.
1106
1107	=cut	1751	=cut
1108		1752
1109	sub cf::player::exists($) {	1753	package cf::region;
1110	cf::player::find $_[0]
1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1112	}
1113		1754
1114	=item $player->ext_reply ($msgid, $msgtype, %msg)	1755	=item cf::region::find_by_path $path
1115		1756
1116	Sends an ext reply to the player.	1757	Tries to decuce the likely region for a map knowing only its path.
1117		1758
1118	=cut	1759	=cut
1119		1760
1120	sub cf::player::ext_reply($$$%) {	1761	sub find_by_path($) {
1121	my ($self, $id, %msg) = @_;	1762	my ($path) = @_;
1122		1763
1123	$msg{msgid} = $id;	1764	my ($match, $specificity);
1124		1765
1125	$self->send ("ext " . to_json \%msg);	1766	for my $region (list) {
		1767	if ($region->{match} && $path =~ $region->{match}) {
		1768	($match, $specificity) = ($region, $region->specificity)
		1769	if $region->specificity > $specificity;
		1770	}
		1771	}
		1772
		1773	$match
1126	}	1774	}
1127		1775
1128	=back	1776	=back
1129
1130		1777
1131	=head3 cf::map	1778	=head3 cf::map
1132		1779
1133	=over 4	1780	=over 4
1134		1781
…		…
1137	package cf::map;	1784	package cf::map;
1138		1785
1139	use Fcntl;	1786	use Fcntl;
1140	use Coro::AIO;	1787	use Coro::AIO;
1141		1788
		1789	use overload
		1790	'""' => \&as_string,
		1791	fallback => 1;
		1792
1142	our $MAX_RESET = 7200;	1793	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1794	our $DEFAULT_RESET = 3000;
1144		1795
1145	sub generate_random_map {	1796	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1797	my ($self, $rmp) = @_;
		1798
		1799	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1147		1800
1148	# mit "rum" bekleckern, nicht	1801	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1802	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1803	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1804	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1805	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1806	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1807	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1808	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1809	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1810	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1811	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1812	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(cf::region::find $rmp->{region})	1813	(cf::region::find $rmp->{region}), $rmp->{custom}
		1814	)
1162	}	1815	}
1163		1816
1164	# and all this just because we cannot iterate over	1817	=item cf::map->register ($regex, $prio)
1165	# all maps in C++...
1166	sub change_all_map_light {
1167	my ($change) = @_;
1168		1818
1169	$_->change_map_light ($change)	1819	Register a handler for the map path matching the given regex at the
1170	for grep $_->outdoor, values %cf::MAP;	1820	givne priority (higher is better, built-in handlers have priority 0, the
1171	}	1821	default).
1172		1822
1173	sub try_load_header($) {	1823	=cut
		1824
		1825	sub register {
		1826	my (undef, $regex, $prio) = @_;
		1827	my $pkg = caller;
		1828
		1829	no strict;
		1830	push @{"$pkg\::ISA"}, __PACKAGE__;
		1831
		1832	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1833	}
		1834
		1835	# also paths starting with '/'
		1836	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1837
		1838	sub thawer_merge {
		1839	my ($self, $merge) = @_;
		1840
		1841	# we have to keep some variables in memory intact
		1842	local $self->{path};
		1843	local $self->{load_path};
		1844
		1845	$self->SUPER::thawer_merge ($merge);
		1846	}
		1847
		1848	sub normalise {
1174	my ($path) = @_;	1849	my ($path, $base) = @_;
		1850
		1851	$path = "$path"; # make sure its a string
		1852
		1853	$path =~ s/\.map$//;
		1854
		1855	# map plan:
		1856	#
		1857	# /! non-realised random map exit (special hack!)
		1858	# {... are special paths that are not being touched
		1859	# ?xxx/... are special absolute paths
		1860	# ?random/... random maps
		1861	# /... normal maps
		1862	# ~user/... per-player map of a specific user
		1863
		1864	$path =~ s/$PATH_SEP/\//go;
		1865
		1866	# treat it as relative path if it starts with
		1867	# something that looks reasonable
		1868	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1869	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1870
		1871	$base =~ s{[^/]+/?$}{};
		1872	$path = "$base/$path";
		1873	}
		1874
		1875	for ($path) {
		1876	redo if s{//}{/};
		1877	redo if s{/\.?/}{/};
		1878	redo if s{/[^/]+/\.\./}{/};
		1879	}
		1880
		1881	$path
		1882	}
		1883
		1884	sub new_from_path {
		1885	my (undef, $path, $base) = @_;
		1886
		1887	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1888
		1889	$path = normalise $path, $base;
		1890
		1891	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1892	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1893	my $self = bless cf::map::new, $pkg;
		1894	$self->{path} = $path; $self->path ($path);
		1895	$self->init; # pass $1 etc.
		1896	return $self;
		1897	}
		1898	}
		1899
		1900	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1901	()
		1902	}
		1903
		1904	sub init {
		1905	my ($self) = @_;
		1906
		1907	$self
		1908	}
		1909
		1910	sub as_string {
		1911	my ($self) = @_;
		1912
		1913	"$self->{path}"
		1914	}
		1915
		1916	# the displayed name, this is a one way mapping
		1917	sub visible_name {
		1918	&as_string
		1919	}
		1920
		1921	# the original (read-only) location
		1922	sub load_path {
		1923	my ($self) = @_;
		1924
		1925	"$MAPDIR/$self->{path}.map"
		1926	}
		1927
		1928	# the temporary/swap location
		1929	sub save_path {
		1930	my ($self) = @_;
		1931
		1932	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1933	"$TMPDIR/$path.map"
		1934	}
		1935
		1936	# the unique path, undef == no special unique path
		1937	sub uniq_path {
		1938	my ($self) = @_;
		1939
		1940	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1941	"$UNIQUEDIR/$path"
		1942	}
		1943
		1944	sub decay_objects {
		1945	my ($self) = @_;
		1946
		1947	return if $self->{deny_reset};
		1948
		1949	$self->do_decay_objects;
		1950	}
		1951
		1952	sub unlink_save {
		1953	my ($self) = @_;
		1954
		1955	utf8::encode (my $save = $self->save_path);
		1956	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1957	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1958	}
		1959
		1960	sub load_header_from($) {
		1961	my ($self, $path) = @_;
1175		1962
1176	utf8::encode $path;	1963	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1964	my $f = new_from_file cf::object::thawer $path
1178	or return;	1965	or return;
1179		1966
1180	my $map = cf::map::new	1967	$self->_load_header ($f)
1181	or return;	1968	or return;
1182		1969
1183	$map->load_header ($path)	1970	local $MAP_LOADING{$self->{path}} = $self;
		1971	$f->resolve_delayed_derefs;
		1972
		1973	$self->{load_path} = $path;
		1974
		1975	1
		1976	}
		1977
		1978	sub load_header_orig {
		1979	my ($self) = @_;
		1980
		1981	$self->load_header_from ($self->load_path)
		1982	}
		1983
		1984	sub load_header_temp {
		1985	my ($self) = @_;
		1986
		1987	$self->load_header_from ($self->save_path)
		1988	}
		1989
		1990	sub prepare_temp {
		1991	my ($self) = @_;
		1992
		1993	$self->last_access ((delete $self->{last_access})
		1994	|| $cf::RUNTIME); #d#
		1995	# safety
		1996	$self->{instantiate_time} = $cf::RUNTIME
		1997	if $self->{instantiate_time} > $cf::RUNTIME;
		1998	}
		1999
		2000	sub prepare_orig {
		2001	my ($self) = @_;
		2002
		2003	$self->{load_original} = 1;
		2004	$self->{instantiate_time} = $cf::RUNTIME;
		2005	$self->last_access ($cf::RUNTIME);
		2006	$self->instantiate;
		2007	}
		2008
		2009	sub load_header {
		2010	my ($self) = @_;
		2011
		2012	if ($self->load_header_temp) {
		2013	$self->prepare_temp;
		2014	} else {
		2015	$self->load_header_orig
1184	or return;	2016	or return;
		2017	$self->prepare_orig;
		2018	}
1185		2019
1186	$map->{load_path} = $path;	2020	$self->{deny_reset} = 1
		2021	if $self->no_reset;
1187		2022
1188	$map	2023	$self->default_region (cf::region::find_by_path $self->{path})
1189	}	2024	unless $self->default_region;
1190		2025
		2026	1
		2027	}
		2028
1191	sub find_map;	2029	sub find;
1192	sub find_map {	2030	sub find {
1193	my ($path, $origin) = @_;	2031	my ($path, $origin) = @_;
1194		2032
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	2033	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		2034
1200	cf::lock_wait "map_find:$key";	2035	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1201
1202	$cf::MAP{$key} || do {
1203	my $guard = cf::lock_acquire "map_find:$key";	2036	my $guard2 = cf::lock_acquire "map_find:$path";
1204		2037
1205	# do it the slow way	2038	$cf::MAP{$path} || do {
1206	my $map = try_load_header $path->save_path;	2039	my $map = new_from_path cf::map $path
1207
1208	if ($map) {
1209	# safety
1210	$map->{instantiate_time} = $cf::RUNTIME
1211	if $map->{instantiate_time} > $cf::RUNTIME;
1212	} else {
1213	if (my $rmp = $path->random_map_params) {
1214	$map = generate_random_map $key, $rmp;
1215	} else {
1216	$map = try_load_header $path->load_path;
1217	}
1218
1219	$map or return;	2040	or return;
1220		2041
1221	$map->{load_original} = 1;
1222	$map->{instantiate_time} = $cf::RUNTIME;
1223	$map->instantiate;
1224
1225	# per-player maps become, after loading, normal maps
1226	$map->per_player (0) if $path->{user_rel};
1227	}
1228
1229	$map->path ($key);
1230	$map->{path} = $path;
1231	$map->{last_save} = $cf::RUNTIME;	2042	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);
1233		2043
1234	if ($map->should_reset) {	2044	$map->load_header
		2045	or return;
		2046
		2047	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2048	# doing this can freeze the server in a sync job, obviously
		2049	#$cf::WAIT_FOR_TICK->wait;
		2050	undef $guard2;
		2051	undef $guard1;
1235	$map->reset;	2052	$map->reset;
1236	undef $guard;	2053	return find $path;
1237	$map = find_map $path
1238	or return;
1239	}	2054	}
1240		2055
1241	$cf::MAP{$key} = $map	2056	$cf::MAP{$path} = $map
1242	}	2057	}
1243	}	2058	}
		2059
		2060	sub pre_load { }
		2061	#sub post_load { } # XS
1244		2062
1245	sub load {	2063	sub load {
1246	my ($self) = @_;	2064	my ($self) = @_;
1247		2065
		2066	local $self->{deny_reset} = 1; # loading can take a long time
		2067
1248	my $path = $self->{path};	2068	my $path = $self->{path};
		2069
		2070	{
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2071	my $guard = cf::lock_acquire "map_data:$path";
1250		2072
		2073	return unless $self->valid;
1251	return if $self->in_memory != cf::MAP_SWAPPED;	2074	return unless $self->in_memory == cf::MAP_SWAPPED;
1252		2075
1253	$self->in_memory (cf::MAP_LOADING);	2076	$self->in_memory (cf::MAP_LOADING);
1254		2077
1255	$self->alloc;	2078	$self->alloc;
1256	$self->load_objects ($self->{load_path}, 1)	2079
		2080	$self->pre_load;
		2081	cf::cede_to_tick;
		2082
		2083	my $f = new_from_file cf::object::thawer $self->{load_path};
		2084	$f->skip_block;
		2085	$self->_load_objects ($f)
1257	or return;	2086	or return;
1258		2087
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2088	$self->post_load_original
1260	if delete $self->{load_original};	2089	if delete $self->{load_original};
1261		2090
1262	if (my $uniq = $path->uniq_path) {	2091	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	2092	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	2093	unless (aio_stat $uniq) {
		2094	if (my $f = new_from_file cf::object::thawer $uniq) {
1265	$self->clear_unique_items;	2095	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	2096	$self->_load_objects ($f);
		2097	$f->resolve_delayed_derefs;
		2098	}
1267	}	2099	}
1268	}	2100	}
1269		2101
		2102	$f->resolve_delayed_derefs;
		2103
		2104	cf::cede_to_tick;
1270	# now do the right thing for maps	2105	# now do the right thing for maps
1271	$self->link_multipart_objects;	2106	$self->link_multipart_objects;
1272
1273	if ($self->{path}->is_style_map) {
1274	$self->{deny_save} = 1;
1275	$self->{deny_reset} = 1;
1276	} else {
1277	$self->fix_auto_apply;
1278	$self->decay_objects;
1279	$self->update_buttons;
1280	$self->set_darkness_map;
1281	$self->difficulty ($self->estimate_difficulty)	2107	$self->difficulty ($self->estimate_difficulty)
1282	unless $self->difficulty;	2108	unless $self->difficulty;
		2109	cf::cede_to_tick;
		2110
		2111	unless ($self->{deny_activate}) {
		2112	$self->decay_objects;
		2113	$self->fix_auto_apply;
		2114	$self->update_buttons;
		2115	cf::cede_to_tick;
1283	$self->activate;	2116	$self->activate;
1284	}	2117	}
1285		2118
		2119	$self->{last_save} = $cf::RUNTIME;
		2120	$self->last_access ($cf::RUNTIME);
		2121
1286	$self->in_memory (cf::MAP_IN_MEMORY);	2122	$self->in_memory (cf::MAP_ACTIVE);
1287	}	2123	}
1288		2124
1289	sub load_map_sync {	2125	$self->post_load;
		2126	}
		2127
		2128	# customize the map for a given player, i.e.
		2129	# return the _real_ map. used by e.g. per-player
		2130	# maps to change the path to ~playername/mappath
		2131	sub customise_for {
		2132	my ($self, $ob) = @_;
		2133
		2134	return find "~" . $ob->name . "/" . $self->{path}
		2135	if $self->per_player;
		2136
		2137	# return find "?party/" . $ob->name . "/" . $self->{path}
		2138	# if $self->per_party;
		2139
		2140	$self
		2141	}
		2142
		2143	# find and load all maps in the 3x3 area around a map
		2144	sub load_neighbours {
		2145	my ($map) = @_;
		2146
		2147	my @neigh; # diagonal neighbours
		2148
		2149	for (0 .. 3) {
		2150	my $neigh = $map->tile_path ($_)
		2151	or next;
		2152	$neigh = find $neigh, $map
		2153	or next;
		2154	$neigh->load;
		2155
		2156	push @neigh,
		2157	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2158	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2159	}
		2160
		2161	for (grep defined $_->[0], @neigh) {
		2162	my ($path, $origin) = @$_;
		2163	my $neigh = find $path, $origin
		2164	or next;
		2165	$neigh->load;
		2166	}
		2167	}
		2168
		2169	sub find_sync {
1290	my ($path, $origin) = @_;	2170	my ($path, $origin) = @_;
1291		2171
1292	#warn "load_map_sync<$path, $origin>\n";#d#	2172	cf::sync_job { find $path, $origin }
		2173	}
1293		2174
1294	cf::sync_job {	2175	sub do_load_sync {
1295	my $map = cf::map::find_map $path, $origin	2176	my ($map) = @_;
1296	or return;	2177
1297	$map->load;	2178	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1298	$map	2179	if $Coro::current == $Coro::main;
		2180
		2181	cf::sync_job { $map->load };
		2182	}
		2183
		2184	our %MAP_PREFETCH;
		2185	our $MAP_PREFETCHER = undef;
		2186
		2187	sub find_async {
		2188	my ($path, $origin, $load) = @_;
		2189
		2190	$path = normalise $path, $origin && $origin->{path};
		2191
		2192	if (my $map = $cf::MAP{$path}) {
		2193	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2194	}
		2195
		2196	$MAP_PREFETCH{$path} |= $load;
		2197
		2198	$MAP_PREFETCHER ||= cf::async {
		2199	$Coro::current->{desc} = "map prefetcher";
		2200
		2201	while (%MAP_PREFETCH) {
		2202	while (my ($k, $v) = each %MAP_PREFETCH) {
		2203	if (my $map = find $k) {
		2204	$map->load if $v;
		2205	}
		2206
		2207	delete $MAP_PREFETCH{$k};
		2208	}
		2209	}
		2210	undef $MAP_PREFETCHER;
1299	}	2211	};
		2212	$MAP_PREFETCHER->prio (6);
		2213
		2214	()
1300	}	2215	}
1301		2216
1302	sub save {	2217	sub save {
1303	my ($self) = @_;	2218	my ($self) = @_;
1304		2219
		2220	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2221
1305	$self->{last_save} = $cf::RUNTIME;	2222	$self->{last_save} = $cf::RUNTIME;
1306		2223
1307	return unless $self->dirty;	2224	return unless $self->dirty;
1308		2225
1309	my $save = $self->{path}->save_path; utf8::encode $save;	2226	my $save = $self->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2227	my $uniq = $self->uniq_path; utf8::encode $uniq;
1311		2228
1312	$self->{load_path} = $save;	2229	$self->{load_path} = $save;
1313		2230
1314	return if $self->{deny_save};	2231	return if $self->{deny_save};
1315		2232
		2233	local $self->{last_access} = $self->last_access;#d#
		2234
		2235	cf::async {
		2236	$Coro::current->{desc} = "map player save";
		2237	$_->contr->save for $self->players;
		2238	};
		2239
		2240	cf::get_slot 0.02;
		2241
1316	if ($uniq) {	2242	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2243	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	2244	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	2245	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2246	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	2247	}
1322	}	2248	}
1323		2249
1324	sub swap_out {	2250	sub swap_out {
1325	my ($self) = @_;	2251	my ($self) = @_;
1326		2252
1327	# save first because save cedes	2253	# save first because save cedes
1328	$self->save;	2254	$self->save;
1329		2255
		2256	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2257
1330	return if $self->players;	2258	return if $self->players;
1331	return if $self->in_memory != cf::MAP_IN_MEMORY;	2259	return if $self->in_memory != cf::MAP_ACTIVE;
1332	return if $self->{deny_save};	2260	return if $self->{deny_save};
1333		2261
		2262	$self->in_memory (cf::MAP_SWAPPED);
		2263
		2264	$self->deactivate;
		2265	$_->clear_links_to ($self) for values %cf::MAP;
1334	$self->clear;	2266	$self->clear;
1335	$self->in_memory (cf::MAP_SWAPPED);
1336	}	2267	}
1337		2268
1338	sub reset_at {	2269	sub reset_at {
1339	my ($self) = @_;	2270	my ($self) = @_;
1340		2271
1341	# TODO: safety, remove and allow resettable per-player maps	2272	# TODO: safety, remove and allow resettable per-player maps
1342	return 1e99 if $self->{path}{user_rel};
1343	return 1e99 if $self->{deny_reset};	2273	return 1e99 if $self->{deny_reset};
1344		2274
1345	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2275	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1346	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2276	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1347		2277
…		…
1352	my ($self) = @_;	2282	my ($self) = @_;
1353		2283
1354	$self->reset_at <= $cf::RUNTIME	2284	$self->reset_at <= $cf::RUNTIME
1355	}	2285	}
1356		2286
1357	sub unlink_save {
1358	my ($self) = @_;
1359
1360	utf8::encode (my $save = $self->{path}->save_path);
1361	aioreq_pri 3; IO::AIO::aio_unlink $save;
1362	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1363	}
1364
1365	sub rename {
1366	my ($self, $new_path) = @_;
1367
1368	$self->unlink_save;
1369
1370	delete $cf::MAP{$self->path};
1371	$self->{path} = new cf::path $new_path;
1372	$self->path ($self->{path}->as_string);
1373	$cf::MAP{$self->path} = $self;
1374
1375	$self->save;
1376	}
1377
1378	sub reset {	2287	sub reset {
1379	my ($self) = @_;	2288	my ($self) = @_;
1380		2289
		2290	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2291
1381	return if $self->players;	2292	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		2293
1384	warn "resetting map ", $self->path;#d#	2294	warn "resetting map ", $self->path, "\n";
		2295
		2296	$self->in_memory (cf::MAP_SWAPPED);
		2297
		2298	# need to save uniques path
		2299	unless ($self->{deny_save}) {
		2300	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2301
		2302	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2303	if $uniq;
		2304	}
1385		2305
1386	delete $cf::MAP{$self->path};	2306	delete $cf::MAP{$self->path};
1387		2307
		2308	$self->deactivate;
1388	$_->clear_links_to ($self) for values %cf::MAP;	2309	$_->clear_links_to ($self) for values %cf::MAP;
		2310	$self->clear;
1389		2311
1390	$self->unlink_save;	2312	$self->unlink_save;
1391	$self->destroy;	2313	$self->destroy;
1392	}	2314	}
1393		2315
1394	my $nuke_counter = "aaaa";	2316	my $nuke_counter = "aaaa";
1395		2317
1396	sub nuke {	2318	sub nuke {
1397	my ($self) = @_;	2319	my ($self) = @_;
1398		2320
		2321	{
		2322	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2323
		2324	delete $cf::MAP{$self->path};
		2325
		2326	$self->unlink_save;
		2327
		2328	bless $self, "cf::map";
		2329	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	2330	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2331	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2332	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2333
		2334	$cf::MAP{$self->path} = $self;
		2335	}
		2336
1402	$self->reset; # polite request, might not happen	2337	$self->reset; # polite request, might not happen
1403	}	2338	}
1404		2339
1405	sub customise_for {	2340	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2341
1408	if ($map->per_player) {	2342	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2343	maps. May block.
		2344
		2345	=cut
		2346
		2347	sub tmp_maps() {
1410	}	2348	[
1411		2349	map {
1412	$map	2350	utf8::decode $_;
		2351	/\.map$/
		2352	? normalise $_
		2353	: ()
		2354	} @{ aio_readdir $TMPDIR or [] }
		2355	]
1413	}	2356	}
1414		2357
1415	sub emergency_save {	2358	=item $maps = cf::map::random_maps
1416	local $cf::FREEZE = 1;
1417		2359
1418	warn "enter emergency map save\n";	2360	Returns an arrayref with all map paths of currently instantiated and saved
		2361	random maps. May block.
1419		2362
1420	cf::sync_job {	2363	=cut
1421	warn "begin emergency map save\n";	2364
1422	$_->save for values %cf::MAP;	2365	sub random_maps() {
		2366	[
		2367	map {
		2368	utf8::decode $_;
		2369	/\.map$/
		2370	? normalise "?random/$_"
		2371	: ()
		2372	} @{ aio_readdir $RANDOMDIR or [] }
		2373	]
		2374	}
		2375
		2376	=item cf::map::unique_maps
		2377
		2378	Returns an arrayref of paths of all shared maps that have
		2379	instantiated unique items. May block.
		2380
		2381	=cut
		2382
		2383	sub unique_maps() {
		2384	[
		2385	map {
		2386	utf8::decode $_;
		2387	s/\.map$//; # TODO future compatibility hack
		2388	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2389	? ()
		2390	: normalise $_
		2391	} @{ aio_readdir $UNIQUEDIR or [] }
		2392	]
		2393	}
		2394
		2395	=item cf::map::static_maps
		2396
		2397	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2398	file in the shared directory excluding F</styles> and F</editor>). May
		2399	block.
		2400
		2401	=cut
		2402
		2403	sub static_maps() {
		2404	my @dirs = "";
		2405	my @maps;
		2406
		2407	while (@dirs) {
		2408	my $dir = shift @dirs;
		2409
		2410	next if $dir eq "/styles" || $dir eq "/editor";
		2411
		2412	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2413	or return;
		2414
		2415	for (@$files) {
		2416	s/\.map$// or next;
		2417	utf8::decode $_;
		2418	push @maps, "$dir/$_";
		2419	}
		2420
		2421	push @dirs, map "$dir/$_", @$dirs;
1423	};	2422	}
1424		2423
1425	warn "end emergency map save\n";	2424	\@maps
		2425	}
		2426
		2427	=back
		2428
		2429	=head3 cf::object
		2430
		2431	=cut
		2432
		2433	package cf::object;
		2434
		2435	=over 4
		2436
		2437	=item $ob->inv_recursive
		2438
		2439	Returns the inventory of the object I<and> their inventories, recursively,
		2440	but I<not> the object itself.
		2441
		2442	=cut
		2443
		2444	sub inv_recursive_;
		2445	sub inv_recursive_ {
		2446	map { $_, inv_recursive_ $_->inv } @_
		2447	}
		2448
		2449	sub inv_recursive {
		2450	inv_recursive_ inv $_[0]
		2451	}
		2452
		2453	=item $ref = $ob->ref
		2454
		2455	Creates and returns a persistent reference to an object that can be stored as a string.
		2456
		2457	=item $ob = cf::object::deref ($refstring)
		2458
		2459	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2460	even if the object actually exists. May block.
		2461
		2462	=cut
		2463
		2464	sub deref {
		2465	my ($ref) = @_;
		2466
		2467	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2468	my ($uuid, $name) = ($1, $2);
		2469	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2470	or return;
		2471	$pl->ob->uuid eq $uuid
		2472	or return;
		2473
		2474	$pl->ob
		2475	} else {
		2476	warn "$ref: cannot resolve object reference\n";
		2477	undef
		2478	}
1426	}	2479	}
1427		2480
1428	package cf;	2481	package cf;
1429		2482
1430	=back	2483	=back
1431
1432		2484
1433	=head3 cf::object::player	2485	=head3 cf::object::player
1434		2486
1435	=over 4	2487	=over 4
1436		2488
…		…
1439	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2491	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1440	can be C<undef>. Does the right thing when the player is currently in a	2492	can be C<undef>. Does the right thing when the player is currently in a
1441	dialogue with the given NPC character.	2493	dialogue with the given NPC character.
1442		2494
1443	=cut	2495	=cut
		2496
		2497	our $SAY_CHANNEL = {
		2498	id => "say",
		2499	title => "Map",
		2500	reply => "say ",
		2501	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2502	};
		2503
		2504	our $CHAT_CHANNEL = {
		2505	id => "chat",
		2506	title => "Chat",
		2507	reply => "chat ",
		2508	tooltip => "Player chat and shouts, global to the server.",
		2509	};
1444		2510
1445	# rough implementation of a future "reply" method that works	2511	# rough implementation of a future "reply" method that works
1446	# with dialog boxes.	2512	# with dialog boxes.
1447	#TODO: the first argument must go, split into a $npc->reply_to ( method	2513	#TODO: the first argument must go, split into a $npc->reply_to ( method
1448	sub cf::object::player::reply($$$;$) {	2514	sub cf::object::player::reply($$$;$) {
…		…
1450		2516
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2517	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2518
1453	if ($self->{record_replies}) {	2519	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2520	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2521
1455	} else {	2522	} else {
		2523	my $pl = $self->contr;
		2524
		2525	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2526	my $dialog = $pl->{npc_dialog};
		2527	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2528
		2529	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2530	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2531	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2532	}
1458	}	2533	}
		2534	}
		2535
		2536	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2537
		2538	=cut
		2539
		2540	sub cf::object::send_msg {
		2541	my $pl = shift->contr
		2542	or return;
		2543	$pl->send_msg (@_);
1459	}	2544	}
1460		2545
1461	=item $player_object->may ("access")	2546	=item $player_object->may ("access")
1462		2547
1463	Returns wether the given player is authorized to access resource "access"	2548	Returns wether the given player is authorized to access resource "access"
…		…
1476		2561
1477	=item $player_object->enter_link	2562	=item $player_object->enter_link
1478		2563
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2564	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2565
1481	The player should be reaosnably safe there for short amounts of time. You	2566	The player should be reasonably safe there for short amounts of time (e.g.
1482	I<MUST> call C<leave_link> as soon as possible, though.	2567	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2568	though, as the palyer cannot control the character while it is on the link
		2569	map.
		2570
		2571	Will never block.
1483		2572
1484	=item $player_object->leave_link ($map, $x, $y)	2573	=item $player_object->leave_link ($map, $x, $y)
1485		2574
1486	Moves the player out of the specila link map onto the given map. If the	2575	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2576	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2577	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2578	fails, to the emergency map position.
1490		2579
1491	Might block.	2580	Might block.
1492		2581
1493	=cut	2582	=cut
		2583
		2584	sub link_map {
		2585	unless ($LINK_MAP) {
		2586	$LINK_MAP = cf::map::find "{link}"
		2587	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2588	$LINK_MAP->load;
		2589	}
		2590
		2591	$LINK_MAP
		2592	}
1494		2593
1495	sub cf::object::player::enter_link {	2594	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2595	my ($self) = @_;
1497		2596
1498	$self->deactivate_recursive;	2597	$self->deactivate_recursive;
1499		2598
1500	return if $self->map == $LINK_MAP;	2599	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2600
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2601	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2602	if $self->map && $self->map->{path} ne "{link}";
1504		2603
1505	$self->enter_map ($LINK_MAP, 20, 20);	2604	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	2605	}
1507		2606
1508	sub cf::object::player::leave_link {	2607	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2608	my ($self, $map, $x, $y) = @_;
		2609
		2610	return unless $self->contr->active;
1510		2611
1511	my $link_pos = delete $self->{_link_pos};	2612	my $link_pos = delete $self->{_link_pos};
1512		2613
1513	unless ($map) {	2614	unless ($map) {
1514	# restore original map position	2615	# restore original map position
1515	($map, $x, $y) = @{ $link_pos || [] };	2616	($map, $x, $y) = @{ $link_pos || [] };
1516	$map = cf::map::find_map $map;	2617	$map = cf::map::find $map;
1517		2618
1518	unless ($map) {	2619	unless ($map) {
1519	($map, $x, $y) = @$EMERGENCY_POSITION;	2620	($map, $x, $y) = @$EMERGENCY_POSITION;
1520	$map = cf::map::find_map $map	2621	$map = cf::map::find $map
1521	or die "FATAL: cannot load emergency map\n";	2622	or die "FATAL: cannot load emergency map\n";
1522	}	2623	}
1523	}	2624	}
1524		2625
1525	($x, $y) = (-1, -1)	2626	($x, $y) = (-1, -1)
1526	unless (defined $x) && (defined $y);	2627	unless (defined $x) && (defined $y);
1527		2628
1528	# use -1 or undef as default coordinates, not 0, 0	2629	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2630	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2631	if $x <= 0 && $y <= 0;
1531		2632
1532	$map->load;	2633	$map->load;
		2634	$map->load_neighbours;
1533		2635
		2636	return unless $self->contr->active;
		2637
		2638	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2639	$self->enter_map ($map, $x, $y);
		2640
		2641	# only activate afterwards, to support waiting in hooks
1534	$self->activate_recursive;	2642	$self->activate_recursive;
1535	$self->enter_map ($map, $x, $y);
1536	}	2643	}
1537		2644
1538	cf::player->attach (	2645	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1539	on_logout => sub {
1540	my ($pl) = @_;
1541		2646
1542	# abort map switching before logout	2647	Moves the player to the given map-path and coordinates by first freezing
1543	if ($pl->ob->{_link_pos}) {	2648	her, loading and preparing them map, calling the provided $check callback
1544	cf::sync_job {	2649	that has to return the map if sucecssful, and then unfreezes the player on
1545	$pl->ob->leave_link	2650	the new (success) or old (failed) map position. In either case, $done will
1546	};	2651	be called at the end of this process.
1547	}
1548	},
1549	on_login => sub {
1550	my ($pl) = @_;
1551		2652
1552	# try to abort aborted map switching on player login :)	2653	Note that $check will be called with a potentially non-loaded map, so if
1553	# should happen only on crashes	2654	it needs a loaded map it has to call C<< ->load >>.
1554	if ($pl->ob->{_link_pos}) {
1555	$pl->ob->enter_link;
1556	cf::async {
1557	# we need this sleep as the login has a concurrent enter_exit running
1558	# and this sleep increases chances of the player not ending up in scorn
1559	Coro::Timer::sleep 1;
1560	$pl->ob->leave_link;
1561	};
1562	}
1563	},
1564	);
1565		2655
1566	=item $player_object->goto_map ($path, $x, $y)
1567
1568	=cut	2656	=cut
1569		2657
		2658	our $GOTOGEN;
		2659
1570	sub cf::object::player::goto_map {	2660	sub cf::object::player::goto {
1571	my ($self, $path, $x, $y) = @_;	2661	my ($self, $path, $x, $y, $check, $done) = @_;
		2662
		2663	# do generation counting so two concurrent goto's will be executed in-order
		2664	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1572		2665
1573	$self->enter_link;	2666	$self->enter_link;
1574		2667
1575	(cf::async {	2668	(async {
1576	$path = new cf::path $path;	2669	$Coro::current->{desc} = "player::goto $path $x $y";
1577		2670
1578	my $map = cf::map::find_map $path->as_string;	2671	# *tag paths override both path and x|y
		2672	if ($path =~ /^\*(.*)$/) {
		2673	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2674	my $ob = $obs[rand @obs];
		2675
		2676	# see if we actually can go there
		2677	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2678	$ob = $obs[rand @obs];
		2679	} else {
		2680	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2681	}
		2682	# else put us there anyways for now #d#
		2683
		2684	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2685	} else {
		2686	($path, $x, $y) = (undef, undef, undef);
		2687	}
		2688	}
		2689
		2690	my $map = eval {
		2691	my $map = defined $path ? cf::map::find $path : undef;
		2692
		2693	if ($map) {
1579	$map = $map->customise_for ($self) if $map;	2694	$map = $map->customise_for ($self);
1580		2695	$map = $check->($map) if $check && $map;
1581	# warn "entering ", $map->path, " at ($x, $y)\n"	2696	} else {
1582	# if $map;
1583
1584	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2697	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2698	}
1585		2699
		2700	$map
		2701	};
		2702
		2703	if ($@) {
		2704	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2705	LOG llevError | logBacktrace, Carp::longmess $@;
		2706	}
		2707
		2708	if ($gen == $self->{_goto_generation}) {
		2709	delete $self->{_goto_generation};
1586	$self->leave_link ($map, $x, $y);	2710	$self->leave_link ($map, $x, $y);
		2711	}
		2712
		2713	$done->() if $done;
1587	})->prio (1);	2714	})->prio (1);
1588	}	2715	}
1589		2716
1590	=item $player_object->enter_exit ($exit_object)	2717	=item $player_object->enter_exit ($exit_object)
1591		2718
…		…
1593		2720
1594	sub parse_random_map_params {	2721	sub parse_random_map_params {
1595	my ($spec) = @_;	2722	my ($spec) = @_;
1596		2723
1597	my $rmp = { # defaults	2724	my $rmp = { # defaults
1598	xsize => 10,	2725	xsize => (cf::rndm 15, 40),
1599	ysize => 10,	2726	ysize => (cf::rndm 15, 40),
		2727	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2728	#layout => string,
1600	};	2729	};
1601		2730
1602	for (split /\n/, $spec) {	2731	for (split /\n/, $spec) {
1603	my ($k, $v) = split /\s+/, $_, 2;	2732	my ($k, $v) = split /\s+/, $_, 2;
1604		2733
…		…
1616	# that depends on the exit object	2745	# that depends on the exit object
1617		2746
1618	my $rmp = parse_random_map_params $exit->msg;	2747	my $rmp = parse_random_map_params $exit->msg;
1619		2748
1620	if ($exit->map) {	2749	if ($exit->map) {
1621	$rmp->{region} = $exit->map->region_name;	2750	$rmp->{region} = $exit->region->name;
1622	$rmp->{origin_map} = $exit->map->path;	2751	$rmp->{origin_map} = $exit->map->path;
1623	$rmp->{origin_x} = $exit->x;	2752	$rmp->{origin_x} = $exit->x;
1624	$rmp->{origin_y} = $exit->y;	2753	$rmp->{origin_y} = $exit->y;
		2754
		2755	$exit->map->touch;
1625	}	2756	}
1626		2757
1627	$rmp->{random_seed} ||= $exit->random_seed;	2758	$rmp->{random_seed} ||= $exit->random_seed;
1628		2759
1629	my $data = cf::to_json $rmp;	2760	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1630	my $md5 = Digest::MD5::md5_hex $data;	2761	my $md5 = Digest::MD5::md5_hex $data;
		2762	my $meta = "$RANDOMDIR/$md5.meta";
1631		2763
1632	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2764	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1633	aio_write $fh, 0, (length $data), $data, 0;	2765	aio_write $fh, 0, (length $data), $data, 0;
		2766	undef $fh;
		2767	aio_rename "$meta~", $meta;
1634		2768
		2769	my $slaying = "?random/$md5";
		2770
		2771	if ($exit->valid) {
1635	$exit->slaying ("?random/$md5");	2772	$exit->slaying ("?random/$md5");
1636	$exit->msg (undef);	2773	$exit->msg (undef);
		2774	}
1637	}	2775	}
1638	}	2776	}
1639		2777
1640	sub cf::object::player::enter_exit {	2778	sub cf::object::player::enter_exit {
1641	my ($self, $exit) = @_;	2779	my ($self, $exit) = @_;
1642		2780
1643	return unless $self->type == cf::PLAYER;	2781	return unless $self->type == cf::PLAYER;
1644		2782
1645	$self->enter_link;	2783	$self->enter_link;
1646		2784
1647	(cf::async {	2785	(async {
		2786	$Coro::current->{desc} = "enter_exit";
		2787
1648	unless (eval {	2788	unless (eval {
		2789	$self->deactivate_recursive; # just to be sure
		2790
		2791	# random map handling
		2792	{
		2793	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2794
1649	prepare_random_map $exit	2795	prepare_random_map $exit
1650	if $exit->slaying eq "/!";	2796	if $exit->slaying eq "/!";
		2797	}
1651		2798
1652	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2799	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1653	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2800	my $x = $exit->stats->hp;
		2801	my $y = $exit->stats->sp;
1654		2802
		2803	$self->goto ($map, $x, $y);
		2804
		2805	# if exit is damned, update players death & WoR home-position
		2806	$self->contr->savebed ($map, $x, $y)
		2807	if $exit->flag (cf::FLAG_DAMNED);
		2808
1655	1;	2809	1
1656	}) {	2810	}) {
1657	$self->message ("Something went wrong deep within the crossfire server. "	2811	$self->message ("Something went wrong deep within the deliantra server. "
1658	. "I'll try to bring you back to the map you were before. "	2812	. "I'll try to bring you back to the map you were before. "
1659	. "Please report this to the dungeon master",	2813	. "Please report this to the dungeon master!",
1660	cf::NDI_UNIQUE | cf::NDI_RED);	2814	cf::NDI_UNIQUE | cf::NDI_RED);
1661		2815
1662	warn "ERROR in enter_exit: $@";	2816	warn "ERROR in enter_exit: $@";
1663	$self->leave_link;	2817	$self->leave_link;
1664	}	2818	}
1665	})->prio (1);	2819	})->prio (1);
…		…
1678		2832
1679	sub cf::client::send_drawinfo {	2833	sub cf::client::send_drawinfo {
1680	my ($self, $text, $flags) = @_;	2834	my ($self, $text, $flags) = @_;
1681		2835
1682	utf8::encode $text;	2836	utf8::encode $text;
1683	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2837	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1684	}	2838	}
1685		2839
		2840	=item $client->send_big_packet ($pkt)
		2841
		2842	Like C<send_packet>, but tries to compress large packets, and fragments
		2843	them as required.
		2844
		2845	=cut
		2846
		2847	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2848
		2849	sub cf::client::send_big_packet {
		2850	my ($self, $pkt) = @_;
		2851
		2852	# try lzf for large packets
		2853	$pkt = "lzf " . Compress::LZF::compress $pkt
		2854	if 1024 <= length $pkt and $self->{can_lzf};
		2855
		2856	# split very large packets
		2857	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2858	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2859	$pkt = "frag";
		2860	}
		2861
		2862	$self->send_packet ($pkt);
		2863	}
		2864
		2865	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2866
		2867	Send a drawinfo or msg packet to the client, formatting the msg for the
		2868	client if neccessary. C<$type> should be a string identifying the type of
		2869	the message, with C<log> being the default. If C<$color> is negative, suppress
		2870	the message unless the client supports the msg packet.
		2871
		2872	=cut
		2873
		2874	# non-persistent channels (usually the info channel)
		2875	our %CHANNEL = (
		2876	"c/motd" => {
		2877	id => "infobox",
		2878	title => "MOTD",
		2879	reply => undef,
		2880	tooltip => "The message of the day",
		2881	},
		2882	"c/identify" => {
		2883	id => "infobox",
		2884	title => "Identify",
		2885	reply => undef,
		2886	tooltip => "Items recently identified",
		2887	},
		2888	"c/examine" => {
		2889	id => "infobox",
		2890	title => "Examine",
		2891	reply => undef,
		2892	tooltip => "Signs and other items you examined",
		2893	},
		2894	"c/shopinfo" => {
		2895	id => "infobox",
		2896	title => "Shop Info",
		2897	reply => undef,
		2898	tooltip => "What your bargaining skill tells you about the shop",
		2899	},
		2900	"c/book" => {
		2901	id => "infobox",
		2902	title => "Book",
		2903	reply => undef,
		2904	tooltip => "The contents of a note or book",
		2905	},
		2906	"c/lookat" => {
		2907	id => "infobox",
		2908	title => "Look",
		2909	reply => undef,
		2910	tooltip => "What you saw there",
		2911	},
		2912	"c/who" => {
		2913	id => "infobox",
		2914	title => "Players",
		2915	reply => undef,
		2916	tooltip => "Shows players who are currently online",
		2917	},
		2918	"c/body" => {
		2919	id => "infobox",
		2920	title => "Body Parts",
		2921	reply => undef,
		2922	tooltip => "Shows which body parts you posess and are available",
		2923	},
		2924	"c/statistics" => {
		2925	id => "infobox",
		2926	title => "Statistics",
		2927	reply => undef,
		2928	tooltip => "Shows your primary statistics",
		2929	},
		2930	"c/skills" => {
		2931	id => "infobox",
		2932	title => "Skills",
		2933	reply => undef,
		2934	tooltip => "Shows your experience per skill and item power",
		2935	},
		2936	"c/shopitems" => {
		2937	id => "infobox",
		2938	title => "Shop Items",
		2939	reply => undef,
		2940	tooltip => "Shows the items currently for sale in this shop",
		2941	},
		2942	"c/resistances" => {
		2943	id => "infobox",
		2944	title => "Resistances",
		2945	reply => undef,
		2946	tooltip => "Shows your resistances",
		2947	},
		2948	"c/pets" => {
		2949	id => "infobox",
		2950	title => "Pets",
		2951	reply => undef,
		2952	tooltip => "Shows information abotu your pets/a specific pet",
		2953	},
		2954	"c/perceiveself" => {
		2955	id => "infobox",
		2956	title => "Perceive Self",
		2957	reply => undef,
		2958	tooltip => "You gained detailed knowledge about yourself",
		2959	},
		2960	"c/uptime" => {
		2961	id => "infobox",
		2962	title => "Uptime",
		2963	reply => undef,
		2964	tooltip => "How long the server has been running since last restart",
		2965	},
		2966	"c/mapinfo" => {
		2967	id => "infobox",
		2968	title => "Map Info",
		2969	reply => undef,
		2970	tooltip => "Information related to the maps",
		2971	},
		2972	"c/party" => {
		2973	id => "party",
		2974	title => "Party",
		2975	reply => "gsay ",
		2976	tooltip => "Messages and chat related to your party",
		2977	},
		2978	"c/death" => {
		2979	id => "death",
		2980	title => "Death",
		2981	reply => undef,
		2982	tooltip => "Reason for and more info about your most recent death",
		2983	},
		2984	"c/say" => $SAY_CHANNEL,
		2985	"c/chat" => $CHAT_CHANNEL,
		2986	);
		2987
		2988	sub cf::client::send_msg {
		2989	my ($self, $channel, $msg, $color, @extra) = @_;
		2990
		2991	$msg = $self->pl->expand_cfpod ($msg)
		2992	unless $color & cf::NDI_VERBATIM;
		2993
		2994	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2995
		2996	# check predefined channels, for the benefit of C
		2997	if ($CHANNEL{$channel}) {
		2998	$channel = $CHANNEL{$channel};
		2999
		3000	$self->ext_msg (channel_info => $channel);
		3001	$channel = $channel->{id};
		3002
		3003	} elsif (ref $channel) {
		3004	# send meta info to client, if not yet sent
		3005	unless (exists $self->{channel}{$channel->{id}}) {
		3006	$self->{channel}{$channel->{id}} = $channel;
		3007	$self->ext_msg (channel_info => $channel);
		3008	}
		3009
		3010	$channel = $channel->{id};
		3011	}
		3012
		3013	return unless @extra || length $msg;
		3014
		3015	# default colour, mask it out
		3016	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3017	if $color & cf::NDI_DEF;
		3018
		3019	my $pkt = "msg "
		3020	. $self->{json_coder}->encode (
		3021	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3022	);
		3023
		3024	$self->send_big_packet ($pkt);
		3025	}
		3026
		3027	=item $client->ext_msg ($type, @msg)
		3028
		3029	Sends an ext event to the client.
		3030
		3031	=cut
		3032
		3033	sub cf::client::ext_msg($$@) {
		3034	my ($self, $type, @msg) = @_;
		3035
		3036	if ($self->extcmd == 2) {
		3037	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3038	} elsif ($self->extcmd == 1) { # TODO: remove
		3039	push @msg, msgtype => "event_$type";
		3040	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3041	}
		3042	}
		3043
		3044	=item $client->ext_reply ($msgid, @msg)
		3045
		3046	Sends an ext reply to the client.
		3047
		3048	=cut
		3049
		3050	sub cf::client::ext_reply($$@) {
		3051	my ($self, $id, @msg) = @_;
		3052
		3053	if ($self->extcmd == 2) {
		3054	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3055	} elsif ($self->extcmd == 1) {
		3056	#TODO: version 1, remove
		3057	unshift @msg, msgtype => "reply", msgid => $id;
		3058	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3059	}
		3060	}
1686		3061
1687	=item $success = $client->query ($flags, "text", \&cb)	3062	=item $success = $client->query ($flags, "text", \&cb)
1688		3063
1689	Queues a query to the client, calling the given callback with	3064	Queues a query to the client, calling the given callback with
1690	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3065	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1691	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3066	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1692		3067
1693	Queries can fail, so check the return code. Or don't, as queries will become	3068	Queries can fail, so check the return code. Or don't, as queries will
1694	reliable at some point in the future.	3069	become reliable at some point in the future.
1695		3070
1696	=cut	3071	=cut
1697		3072
1698	sub cf::client::query {	3073	sub cf::client::query {
1699	my ($self, $flags, $text, $cb) = @_;	3074	my ($self, $flags, $text, $cb) = @_;
…		…
1707	utf8::encode $text;	3082	utf8::encode $text;
1708	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3083	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1709		3084
1710	$self->send_packet ($self->{query_queue}[0][0])	3085	$self->send_packet ($self->{query_queue}[0][0])
1711	if @{ $self->{query_queue} } == 1;	3086	if @{ $self->{query_queue} } == 1;
		3087
		3088	1
1712	}	3089	}
1713		3090
1714	cf::client->attach (	3091	cf::client->attach (
		3092	on_connect => sub {
		3093	my ($ns) = @_;
		3094
		3095	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3096	},
1715	on_reply => sub {	3097	on_reply => sub {
1716	my ($ns, $msg) = @_;	3098	my ($ns, $msg) = @_;
1717		3099
1718	# this weird shuffling is so that direct followup queries	3100	# this weird shuffling is so that direct followup queries
1719	# get handled first	3101	# get handled first
1720	my $queue = delete $ns->{query_queue}	3102	my $queue = delete $ns->{query_queue}
1721	or return; # be conservative, not sure how that can happen, but we saw a crash here	3103	or return; # be conservative, not sure how that can happen, but we saw a crash here
1722		3104
1723	(shift @$queue)->[1]->($msg);	3105	(shift @$queue)->[1]->($msg);
		3106	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1724		3107
1725	push @{ $ns->{query_queue} }, @$queue;	3108	push @{ $ns->{query_queue} }, @$queue;
1726		3109
1727	if (@{ $ns->{query_queue} } == @$queue) {	3110	if (@{ $ns->{query_queue} } == @$queue) {
1728	if (@$queue) {	3111	if (@$queue) {
…		…
1730	} else {	3113	} else {
1731	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3114	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1732	}	3115	}
1733	}	3116	}
1734	},	3117	},
		3118	on_exticmd => sub {
		3119	my ($ns, $buf) = @_;
		3120
		3121	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3122
		3123	if (ref $msg) {
		3124	my ($type, $reply, @payload) =
		3125	"ARRAY" eq ref $msg
		3126	? @$msg
		3127	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3128
		3129	my @reply;
		3130
		3131	if (my $cb = $EXTICMD{$type}) {
		3132	@reply = $cb->($ns, @payload);
		3133	}
		3134
		3135	$ns->ext_reply ($reply, @reply)
		3136	if $reply;
		3137
		3138	} else {
		3139	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3140	}
		3141
		3142	cf::override;
		3143	},
1735	);	3144	);
1736		3145
1737	=item $client->coro (\&cb)	3146	=item $client->async (\&cb)
1738		3147
1739	Create a new coroutine, running the specified callback. The coroutine will	3148	Create a new coroutine, running the specified callback. The coroutine will
1740	be automatically cancelled when the client gets destroyed (e.g. on logout,	3149	be automatically cancelled when the client gets destroyed (e.g. on logout,
1741	or loss of connection).	3150	or loss of connection).
1742		3151
1743	=cut	3152	=cut
1744		3153
1745	sub cf::client::coro {	3154	sub cf::client::async {
1746	my ($self, $cb) = @_;	3155	my ($self, $cb) = @_;
1747		3156
1748	my $coro = &cf::async ($cb);	3157	my $coro = &Coro::async ($cb);
1749		3158
1750	$coro->on_destroy (sub {	3159	$coro->on_destroy (sub {
1751	delete $self->{_coro}{$coro+0};	3160	delete $self->{_coro}{$coro+0};
1752	});	3161	});
1753		3162
…		…
1755		3164
1756	$coro	3165	$coro
1757	}	3166	}
1758		3167
1759	cf::client->attach (	3168	cf::client->attach (
1760	on_destroy => sub {	3169	on_client_destroy => sub {
1761	my ($ns) = @_;	3170	my ($ns) = @_;
1762		3171
1763	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3172	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1764	},	3173	},
1765	);	3174	);
…		…
1780	our $safe = new Safe "safe";	3189	our $safe = new Safe "safe";
1781	our $safe_hole = new Safe::Hole;	3190	our $safe_hole = new Safe::Hole;
1782		3191
1783	$SIG{FPE} = 'IGNORE';	3192	$SIG{FPE} = 'IGNORE';
1784		3193
1785	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3194	$safe->permit_only (Opcode::opset qw(
		3195	:base_core :base_mem :base_orig :base_math :base_loop
		3196	grepstart grepwhile mapstart mapwhile
		3197	sort time
		3198	));
1786		3199
1787	# here we export the classes and methods available to script code	3200	# here we export the classes and methods available to script code
1788		3201
1789	=pod	3202	=pod
1790		3203
1791	The following fucntions and emthods are available within a safe environment:	3204	The following functions and methods are available within a safe environment:
1792		3205
1793	cf::object contr pay_amount pay_player map	3206	cf::object
		3207	contr pay_amount pay_player map x y force_find force_add destroy
		3208	insert remove name archname title slaying race decrease split
		3209	value
		3210
1794	cf::object::player player	3211	cf::object::player
1795	cf::player peaceful	3212	player
1796	cf::map trigger	3213
		3214	cf::player
		3215	peaceful
		3216
		3217	cf::map
		3218	trigger
1797		3219
1798	=cut	3220	=cut
1799		3221
1800	for (	3222	for (
1801	["cf::object" => qw(contr pay_amount pay_player map)],	3223	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3224	insert remove inv nrof name archname title slaying race
		3225	decrease split destroy change_exp value msg lore send_msg)],
1802	["cf::object::player" => qw(player)],	3226	["cf::object::player" => qw(player)],
1803	["cf::player" => qw(peaceful)],	3227	["cf::player" => qw(peaceful send_msg)],
1804	["cf::map" => qw(trigger)],	3228	["cf::map" => qw(trigger)],
1805	) {	3229	) {
1806	no strict 'refs';	3230	no strict 'refs';
1807	my ($pkg, @funs) = @$_;	3231	my ($pkg, @funs) = @$_;
1808	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3232	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1826		3250
1827	my $qcode = $code;	3251	my $qcode = $code;
1828	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3252	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1829	$qcode =~ s/\n/\\n/g;	3253	$qcode =~ s/\n/\\n/g;
1830		3254
		3255	%vars = (_dummy => 0) unless %vars;
		3256
		3257	my @res;
1831	local $_;	3258	local $_;
1832	local @safe::cf::_safe_eval_args = values %vars;
1833		3259
1834	my $eval =	3260	my $eval =
1835	"do {\n"	3261	"do {\n"
1836	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3262	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1837	. "#line 0 \"{$qcode}\"\n"	3263	. "#line 0 \"{$qcode}\"\n"
1838	. $code	3264	. $code
1839	. "\n}"	3265	. "\n}"
1840	;	3266	;
1841		3267
		3268	if ($CFG{safe_eval}) {
1842	sub_generation_inc;	3269	sub_generation_inc;
		3270	local @safe::cf::_safe_eval_args = values %vars;
1843	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3271	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1844	sub_generation_inc;	3272	sub_generation_inc;
		3273	} else {
		3274	local @cf::_safe_eval_args = values %vars;
		3275	@res = wantarray ? eval eval : scalar eval $eval;
		3276	}
1845		3277
1846	if ($@) {	3278	if ($@) {
1847	warn "$@";	3279	warn "$@";
1848	warn "while executing safe code '$code'\n";	3280	warn "while executing safe code '$code'\n";
1849	warn "with arguments " . (join " ", %vars) . "\n";	3281	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1868	=cut	3300	=cut
1869		3301
1870	sub register_script_function {	3302	sub register_script_function {
1871	my ($fun, $cb) = @_;	3303	my ($fun, $cb) = @_;
1872		3304
1873	no strict 'refs';	3305	$fun = "safe::$fun" if $CFG{safe_eval};
1874	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3306	*$fun = $safe_hole->wrap ($cb);
1875	}	3307	}
1876		3308
1877	=back	3309	=back
1878		3310
1879	=cut	3311	=cut
1880		3312
1881	#############################################################################	3313	#############################################################################
		3314	# the server's init and main functions
1882		3315
1883	=head2 EXTENSION DATABASE SUPPORT	3316	sub load_facedata($) {
		3317	my ($path) = @_;
1884		3318
1885	Crossfire maintains a very simple database for extension use. It can	3319	# HACK to clear player env face cache, we need some signal framework
1886	currently store anything that can be serialised using Storable, which	3320	# for this (global event?)
1887	excludes objects.	3321	%ext::player_env::MUSIC_FACE_CACHE = ();
1888		3322
1889	The parameter C<$family> should best start with the name of the extension	3323	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1890	using it, it should be unique.
1891		3324
1892	=over 4	3325	warn "loading facedata from $path\n";
1893		3326
1894	=item $hashref = cf::db_get $family	3327	my $facedata;
		3328	0 < aio_load $path, $facedata
		3329	or die "$path: $!";
1895		3330
1896	Return a hashref for use by the extension C<$family>, which can be	3331	$facedata = Coro::Storable::thaw $facedata;
1897	modified. After modifications, you have to call C<cf::db_dirty> or
1898	C<cf::db_sync>.
1899		3332
1900	=item $value = cf::db_get $family => $key	3333	$facedata->{version} == 2
		3334	or cf::cleanup "$path: version mismatch, cannot proceed.";
1901		3335
1902	Returns a single value from the database	3336	# patch in the exptable
1903		3337	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1904	=item cf::db_put $family => $hashref	3338	$facedata->{resource}{"res/exp_table"} = {
1905		3339	type => FT_RSRC,
1906	Stores the given family hashref into the database. Updates are delayed, if	3340	data => $exp_table,
1907	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3341	hash => (Digest::MD5::md5 $exp_table),
1908
1909	=item cf::db_put $family => $key => $value
1910
1911	Stores the given C<$value> in the family hash. Updates are delayed, if you
1912	want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_dirty
1915
1916	Marks the database as dirty, to be updated at a later time.
1917
1918	=item cf::db_sync
1919
1920	Immediately write the database to disk I<if it is dirty>.
1921
1922	=cut
1923
1924	our $DB;
1925
1926	{
1927	my $path = cf::localdir . "/database.pst";
1928
1929	sub db_load() {
1930	$DB = stat $path ? Storable::retrieve $path : { };
1931	}
1932
1933	my $pid;
1934
1935	sub db_save() {
1936	waitpid $pid, 0 if $pid;
1937	if (0 == ($pid = fork)) {
1938	$DB->{_meta}{version} = 1;
1939	Storable::nstore $DB, "$path~";
1940	rename "$path~", $path;
1941	cf::_exit 0 if defined $pid;
1942	}
1943	}
1944
1945	my $dirty;
1946
1947	sub db_sync() {
1948	db_save if $dirty;
1949	undef $dirty;
1950	}
1951
1952	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1953	db_sync;
1954	});	3342	};
		3343	cf::cede_to_tick;
1955		3344
1956	sub db_dirty() {
1957	$dirty = 1;
1958	$idle->start;
1959	}	3345	{
		3346	my $faces = $facedata->{faceinfo};
1960		3347
1961	sub db_get($;$) {	3348	while (my ($face, $info) = each %$faces) {
1962	@_ >= 2	3349	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1963	? $DB->{$_[0]}{$_[1]}
1964	: ($DB->{$_[0]} ||= { })
1965	}
1966		3350
1967	sub db_put($$;$) {	3351	cf::face::set_visibility $idx, $info->{visibility};
1968	if (@_ >= 3) {	3352	cf::face::set_magicmap $idx, $info->{magicmap};
1969	$DB->{$_[0]}{$_[1]} = $_[2];	3353	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1970	} else {	3354	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1971	$DB->{$_[0]} = $_[1];
1972	}
1973	db_dirty;
1974	}
1975		3355
1976	cf::global->attach (	3356	cf::cede_to_tick;
1977	prio => 10000,
1978	on_cleanup => sub {
1979	db_sync;
1980	},	3357	}
1981	);
1982	}
1983		3358
1984	#############################################################################	3359	while (my ($face, $info) = each %$faces) {
1985	# the server's main()	3360	next unless $info->{smooth};
1986		3361
1987	sub cfg_load {	3362	my $idx = cf::face::find $face
		3363	or next;
		3364
		3365	if (my $smooth = cf::face::find $info->{smooth}) {
		3366	cf::face::set_smooth $idx, $smooth;
		3367	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3368	} else {
		3369	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3370	}
		3371
		3372	cf::cede_to_tick;
		3373	}
		3374	}
		3375
		3376	{
		3377	my $anims = $facedata->{animinfo};
		3378
		3379	while (my ($anim, $info) = each %$anims) {
		3380	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3381	cf::cede_to_tick;
		3382	}
		3383
		3384	cf::anim::invalidate_all; # d'oh
		3385	}
		3386
		3387	{
		3388	my $res = $facedata->{resource};
		3389
		3390	while (my ($name, $info) = each %$res) {
		3391	if (defined $info->{type}) {
		3392	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3393
		3394	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3395	cf::face::set_type $idx, $info->{type};
		3396	} else {
		3397	$RESOURCE{$name} = $info;
		3398	}
		3399
		3400	cf::cede_to_tick;
		3401	}
		3402	}
		3403
		3404	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3405
		3406	1
		3407	}
		3408
		3409	cf::global->attach (on_resource_update => sub {
		3410	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3411	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3412
		3413	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3414	my $sound = $soundconf->{compat}[$_]
		3415	or next;
		3416
		3417	my $face = cf::face::find "sound/$sound->[1]";
		3418	cf::sound::set $sound->[0] => $face;
		3419	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3420	}
		3421
		3422	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3423	my $face = cf::face::find "sound/$v";
		3424	cf::sound::set $k => $face;
		3425	}
		3426	}
		3427	});
		3428
		3429	register_exticmd fx_want => sub {
		3430	my ($ns, $want) = @_;
		3431
		3432	while (my ($k, $v) = each %$want) {
		3433	$ns->fx_want ($k, $v);
		3434	}
		3435	};
		3436
		3437	sub load_resource_file($) {
		3438	my $guard = lock_acquire "load_resource_file";
		3439
		3440	my $status = load_resource_file_ $_[0];
		3441	get_slot 0.1, 100;
		3442	cf::arch::commit_load;
		3443
		3444	$status
		3445	}
		3446
		3447	sub reload_regions {
		3448	# HACK to clear player env face cache, we need some signal framework
		3449	# for this (global event?)
		3450	%ext::player_env::MUSIC_FACE_CACHE = ();
		3451
		3452	load_resource_file "$MAPDIR/regions"
		3453	or die "unable to load regions file\n";
		3454
		3455	for (cf::region::list) {
		3456	$_->{match} = qr/$_->{match}/
		3457	if exists $_->{match};
		3458	}
		3459	}
		3460
		3461	sub reload_facedata {
		3462	load_facedata "$DATADIR/facedata"
		3463	or die "unable to load facedata\n";
		3464	}
		3465
		3466	sub reload_archetypes {
		3467	load_resource_file "$DATADIR/archetypes"
		3468	or die "unable to load archetypes\n";
		3469	}
		3470
		3471	sub reload_treasures {
		3472	load_resource_file "$DATADIR/treasures"
		3473	or die "unable to load treasurelists\n";
		3474	}
		3475
		3476	sub reload_resources {
		3477	warn "reloading resource files...\n";
		3478
		3479	reload_facedata;
		3480	reload_archetypes;
		3481	reload_regions;
		3482	reload_treasures;
		3483
		3484	warn "finished reloading resource files\n";
		3485	}
		3486
		3487	sub reload_config {
		3488	warn "reloading config file...\n";
		3489
1988	open my $fh, "<:utf8", cf::confdir . "/config"	3490	open my $fh, "<:utf8", "$CONFDIR/config"
1989	or return;	3491	or return;
1990		3492
1991	local $/;	3493	local $/;
1992	*CFG = YAML::Syck::Load <$fh>;	3494	*CFG = YAML::XS::Load scalar <$fh>;
		3495
		3496	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3497
		3498	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3499	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3500
		3501	if (exists $CFG{mlockall}) {
		3502	eval {
		3503	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3504	and die "WARNING: m(un)lockall failed: $!\n";
		3505	};
		3506	warn $@ if $@;
		3507	}
		3508
		3509	warn "finished reloading resource files\n";
		3510	}
		3511
		3512	sub pidfile() {
		3513	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3514	or die "$PIDFILE: $!";
		3515	flock $fh, &Fcntl::LOCK_EX
		3516	or die "$PIDFILE: flock: $!";
		3517	$fh
		3518	}
		3519
		3520	# make sure only one server instance is running at any one time
		3521	sub atomic {
		3522	my $fh = pidfile;
		3523
		3524	my $pid = <$fh>;
		3525	kill 9, $pid if $pid > 0;
		3526
		3527	seek $fh, 0, 0;
		3528	print $fh $$;
		3529	}
		3530
		3531	sub main_loop {
		3532	warn "EV::loop starting\n";
		3533	if (1) {
		3534	EV::loop;
		3535	}
		3536	warn "EV::loop returned\n";
		3537	goto &main_loop unless $REALLY_UNLOOP;
1993	}	3538	}
1994		3539
1995	sub main {	3540	sub main {
		3541	cf::init_globals; # initialise logging
		3542
		3543	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3544	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3545	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3546	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3547
		3548	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3549
1996	# we must not ever block the main coroutine	3550	# we must not ever block the main coroutine
1997	local $Coro::idle = sub {	3551	local $Coro::idle = sub {
1998	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3552	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1999	(Coro::unblock_sub {	3553	(async {
2000	Event::one_event;	3554	$Coro::current->{desc} = "IDLE BUG HANDLER";
2001	})->();	3555	EV::loop EV::LOOP_ONESHOT;
		3556	})->prio (Coro::PRIO_MAX);
2002	};	3557	};
2003		3558
2004	cfg_load;	3559	evthread_start IO::AIO::poll_fileno;
2005	db_load;	3560
		3561	cf::sync_job {
		3562	cf::init_experience;
		3563	cf::init_anim;
		3564	cf::init_attackmess;
		3565	cf::init_dynamic;
		3566
		3567	cf::load_settings;
		3568	cf::load_materials;
		3569
		3570	reload_resources;
		3571	reload_config;
		3572	db_init;
		3573
		3574	cf::init_uuid;
		3575	cf::init_signals;
		3576	cf::init_skills;
		3577
		3578	cf::init_beforeplay;
		3579
		3580	atomic;
		3581
2006	load_extensions;	3582	load_extensions;
2007	Event::loop;	3583
		3584	utime time, time, $RUNTIMEFILE;
		3585
		3586	# no (long-running) fork's whatsoever before this point(!)
		3587	use POSIX ();
		3588	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3589
		3590	(pop @POST_INIT)->(0) while @POST_INIT;
		3591	};
		3592
		3593	cf::object::thawer::errors_are_fatal 0;
		3594
		3595	main_loop;
2008	}	3596	}
2009		3597
2010	#############################################################################	3598	#############################################################################
2011	# initialisation	3599	# initialisation and cleanup
2012		3600
		3601	# install some emergency cleanup handlers
		3602	BEGIN {
		3603	our %SIGWATCHER = ();
		3604	for my $signal (qw(INT HUP TERM)) {
		3605	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3606	cf::cleanup "SIG$signal";
		3607	};
		3608	}
		3609	}
		3610
		3611	sub write_runtime_sync {
		3612	my $t0 = AE::time;
		3613
		3614	# first touch the runtime file to show we are still running:
		3615	# the fsync below can take a very very long time.
		3616
		3617	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3618
		3619	my $guard = cf::lock_acquire "write_runtime";
		3620
		3621	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3622	or return;
		3623
		3624	my $value = $cf::RUNTIME + 90 + 10;
		3625	# 10 is the runtime save interval, for a monotonic clock
		3626	# 60 allows for the watchdog to kill the server.
		3627
		3628	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3629	and return;
		3630
		3631	# always fsync - this file is important
		3632	aio_fsync $fh
		3633	and return;
		3634
		3635	# touch it again to show we are up-to-date
		3636	aio_utime $fh, undef, undef;
		3637
		3638	close $fh
		3639	or return;
		3640
		3641	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3642	and return;
		3643
		3644	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3645
		3646	1
		3647	}
		3648
		3649	our $uuid_lock;
		3650	our $uuid_skip;
		3651
		3652	sub write_uuid_sync($) {
		3653	$uuid_skip ||= $_[0];
		3654
		3655	return if $uuid_lock;
		3656	local $uuid_lock = 1;
		3657
		3658	my $uuid = "$LOCALDIR/uuid";
		3659
		3660	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3661	or return;
		3662
		3663	my $value = uuid_seq uuid_cur;
		3664
		3665	unless ($value) {
		3666	warn "cowardly refusing to write zero uuid value!\n";
		3667	return;
		3668	}
		3669
		3670	my $value = uuid_str $value + $uuid_skip;
		3671	$uuid_skip = 0;
		3672
		3673	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3674	and return;
		3675
		3676	# always fsync - this file is important
		3677	aio_fsync $fh
		3678	and return;
		3679
		3680	close $fh
		3681	or return;
		3682
		3683	aio_rename "$uuid~", $uuid
		3684	and return;
		3685
		3686	warn "uuid file written ($value).\n";
		3687
		3688	1
		3689
		3690	}
		3691
		3692	sub write_uuid($$) {
		3693	my ($skip, $sync) = @_;
		3694
		3695	$sync ? write_uuid_sync $skip
		3696	: async { write_uuid_sync $skip };
		3697	}
		3698
		3699	sub emergency_save() {
		3700	my $freeze_guard = cf::freeze_mainloop;
		3701
		3702	warn "emergency_perl_save: enter\n";
		3703
		3704	cf::sync_job {
		3705	# this is a trade-off: we want to be very quick here, so
		3706	# save all maps without fsync, and later call a global sync
		3707	# (which in turn might be very very slow)
		3708	local $USE_FSYNC = 0;
		3709
		3710	# use a peculiar iteration method to avoid tripping on perl
		3711	# refcount bugs in for. also avoids problems with players
		3712	# and maps saved/destroyed asynchronously.
		3713	warn "emergency_perl_save: begin player save\n";
		3714	for my $login (keys %cf::PLAYER) {
		3715	my $pl = $cf::PLAYER{$login} or next;
		3716	$pl->valid or next;
		3717	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3718	$pl->save;
		3719	}
		3720	warn "emergency_perl_save: end player save\n";
		3721
		3722	warn "emergency_perl_save: begin map save\n";
		3723	for my $path (keys %cf::MAP) {
		3724	my $map = $cf::MAP{$path} or next;
		3725	$map->valid or next;
		3726	$map->save;
		3727	}
		3728	warn "emergency_perl_save: end map save\n";
		3729
		3730	warn "emergency_perl_save: begin database checkpoint\n";
		3731	BDB::db_env_txn_checkpoint $DB_ENV;
		3732	warn "emergency_perl_save: end database checkpoint\n";
		3733
		3734	warn "emergency_perl_save: begin write uuid\n";
		3735	write_uuid_sync 1;
		3736	warn "emergency_perl_save: end write uuid\n";
		3737	};
		3738
		3739	warn "emergency_perl_save: starting sync()\n";
		3740	IO::AIO::aio_sync sub {
		3741	warn "emergency_perl_save: finished sync()\n";
		3742	};
		3743
		3744	warn "emergency_perl_save: leave\n";
		3745	}
		3746
		3747	sub post_cleanup {
		3748	my ($make_core) = @_;
		3749
		3750	warn Carp::longmess "post_cleanup backtrace"
		3751	if $make_core;
		3752
		3753	my $fh = pidfile;
		3754	unlink $PIDFILE if <$fh> == $$;
		3755	}
		3756
		3757	# a safer delete_package, copied from Symbol
		3758	sub clear_package($) {
		3759	my $pkg = shift;
		3760
		3761	# expand to full symbol table name if needed
		3762	unless ($pkg =~ /^main::.*::$/) {
		3763	$pkg = "main$pkg" if $pkg =~ /^::/;
		3764	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3765	$pkg .= '::' unless $pkg =~ /::$/;
		3766	}
		3767
		3768	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3769	my $stem_symtab = *{$stem}{HASH};
		3770
		3771	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3772	or return;
		3773
		3774	# clear all symbols
		3775	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3776	for my $name (keys %$leaf_symtab) {
		3777	_gv_clear *{"$pkg$name"};
		3778	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3779	}
		3780	warn "cleared package $pkg\n";#d#
		3781	}
		3782
2013	sub reload() {	3783	sub do_reload_perl() {
2014	# can/must only be called in main	3784	# can/must only be called in main
2015	if ($Coro::current != $Coro::main) {	3785	if ($Coro::current != $Coro::main) {
2016	warn "can only reload from main coroutine\n";	3786	warn "can only reload from main coroutine";
2017	return;	3787	return;
2018	}	3788	}
2019		3789
		3790	return if $RELOAD++;
		3791
		3792	my $t1 = AE::time;
		3793
		3794	while ($RELOAD) {
2020	warn "reloading...";	3795	warn "reloading...";
2021		3796
2022	local $FREEZE = 1;	3797	warn "entering sync_job";
		3798
		3799	cf::sync_job {
		3800	cf::write_runtime_sync; # external watchdog should not bark
2023	cf::emergency_save;	3801	cf::emergency_save;
		3802	cf::write_runtime_sync; # external watchdog should not bark
2024		3803
2025	eval {	3804	warn "syncing database to disk";
		3805	BDB::db_env_txn_checkpoint $DB_ENV;
		3806
2026	# if anything goes wrong in here, we should simply crash as we already saved	3807	# if anything goes wrong in here, we should simply crash as we already saved
2027		3808
2028	# cancel all watchers	3809	warn "flushing outstanding aio requests";
2029	for (Event::all_watchers) {	3810	while (IO::AIO::nreqs || BDB::nreqs) {
2030	$_->cancel if $_->data & WF_AUTOCANCEL;	3811	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2031	}
2032
2033	# cancel all extension coros
2034	$_->cancel for values %EXT_CORO;
2035	%EXT_CORO = ();
2036
2037	# unload all extensions
2038	for (@exts) {
2039	warn "unloading <$_>";
2040	unload_extension $_;
2041	}
2042
2043	# unload all modules loaded from $LIBDIR
2044	while (my ($k, $v) = each %INC) {
2045	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2046
2047	warn "removing <$k>";
2048	delete $INC{$k};
2049
2050	$k =~ s/\.pm$//;
2051	$k =~ s/\//::/g;
2052
2053	if (my $cb = $k->can ("unload_module")) {
2054	$cb->();
2055	}	3812	}
2056		3813
2057	Symbol::delete_package $k;	3814	warn "cancelling all extension coros";
		3815	$_->cancel for values %EXT_CORO;
		3816	%EXT_CORO = ();
		3817
		3818	warn "removing commands";
		3819	%COMMAND = ();
		3820
		3821	warn "removing ext/exti commands";
		3822	%EXTCMD = ();
		3823	%EXTICMD = ();
		3824
		3825	warn "unloading/nuking all extensions";
		3826	for my $pkg (@EXTS) {
		3827	warn "... unloading $pkg";
		3828
		3829	if (my $cb = $pkg->can ("unload")) {
		3830	eval {
		3831	$cb->($pkg);
		3832	1
		3833	} or warn "$pkg unloaded, but with errors: $@";
		3834	}
		3835
		3836	warn "... clearing $pkg";
		3837	clear_package $pkg;
2058	}	3838	}
2059		3839
2060	# sync database to disk	3840	warn "unloading all perl modules loaded from $LIBDIR";
2061	cf::db_sync;	3841	while (my ($k, $v) = each %INC) {
2062	IO::AIO::flush;	3842	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2063		3843
		3844	warn "... unloading $k";
		3845	delete $INC{$k};
		3846
		3847	$k =~ s/\.pm$//;
		3848	$k =~ s/\//::/g;
		3849
		3850	if (my $cb = $k->can ("unload_module")) {
		3851	$cb->();
		3852	}
		3853
		3854	clear_package $k;
		3855	}
		3856
2064	# get rid of safe::, as good as possible	3857	warn "getting rid of safe::, as good as possible";
2065	Symbol::delete_package "safe::$_"	3858	clear_package "safe::$_"
2066	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3859	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2067		3860
2068	# remove register_script_function callbacks	3861	warn "unloading cf.pm \"a bit\"";
2069	# TODO
2070
2071	# unload cf.pm "a bit"
2072	delete $INC{"cf.pm"};	3862	delete $INC{"cf.pm"};
		3863	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2073		3864
2074	# don't, removes xs symbols, too,	3865	# don't, removes xs symbols, too,
2075	# and global variables created in xs	3866	# and global variables created in xs
2076	#Symbol::delete_package __PACKAGE__;	3867	#clear_package __PACKAGE__;
2077		3868
2078	# reload cf.pm	3869	warn "unload completed, starting to reload now";
		3870
2079	warn "reloading cf.pm";	3871	warn "reloading cf.pm";
2080	require cf;	3872	require cf;
2081	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3873	cf::_connect_to_perl_1;
2082		3874
2083	# load config and database again	3875	warn "loading config and database again";
2084	cf::cfg_load;	3876	cf::reload_config;
2085	cf::db_load;
2086		3877
2087	# load extensions
2088	warn "load extensions";	3878	warn "loading extensions";
2089	cf::load_extensions;	3879	cf::load_extensions;
2090		3880
2091	# reattach attachments to objects	3881	if ($REATTACH_ON_RELOAD) {
		3882	warn "reattaching attachments to objects/players";
		3883	_global_reattach; # objects, sockets
		3884	warn "reattaching attachments to maps";
		3885	reattach $_ for values %MAP;
		3886	warn "reattaching attachments to players";
		3887	reattach $_ for values %PLAYER;
		3888	}
		3889
		3890	warn "running post_init jobs";
		3891	(pop @POST_INIT)->(1) while @POST_INIT;
		3892
		3893	warn "leaving sync_job";
		3894
		3895	1
		3896	} or do {
		3897	warn $@;
		3898	cf::cleanup "error while reloading, exiting.";
		3899	};
		3900
2092	warn "reattach";	3901	warn "reloaded";
2093	_global_reattach;	3902	--$RELOAD;
		3903	}
		3904
		3905	$t1 = AE::time - $t1;
		3906	warn "reload completed in ${t1}s\n";
		3907	};
		3908
		3909	our $RELOAD_WATCHER; # used only during reload
		3910
		3911	sub reload_perl() {
		3912	# doing reload synchronously and two reloads happen back-to-back,
		3913	# coro crashes during coro_state_free->destroy here.
		3914
		3915	$RELOAD_WATCHER ||= cf::async {
		3916	Coro::AIO::aio_wait cache_extensions;
		3917
		3918	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3919	do_reload_perl;
		3920	undef $RELOAD_WATCHER;
		3921	};
2094	};	3922	};
2095
2096	if ($@) {
2097	warn $@;
2098	warn "error while reloading, exiting.";
2099	exit 1;
2100	}
2101
2102	warn "reloaded successfully";
2103	};
2104
2105	#############################################################################
2106
2107	unless ($LINK_MAP) {
2108	$LINK_MAP = cf::map::new;
2109
2110	$LINK_MAP->width (41);
2111	$LINK_MAP->height (41);
2112	$LINK_MAP->alloc;
2113	$LINK_MAP->path ("{link}");
2114	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2115	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2116
2117	# dirty hack because... archetypes are not yet loaded
2118	Event->timer (
2119	after => 2,
2120	cb => sub {
2121	$_[0]->w->cancel;
2122
2123	# provide some exits "home"
2124	my $exit = cf::object::new "exit";
2125
2126	$exit->slaying ($EMERGENCY_POSITION->[0]);
2127	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2128	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2129
2130	$LINK_MAP->insert ($exit->clone, 19, 19);
2131	$LINK_MAP->insert ($exit->clone, 19, 20);
2132	$LINK_MAP->insert ($exit->clone, 19, 21);
2133	$LINK_MAP->insert ($exit->clone, 20, 19);
2134	$LINK_MAP->insert ($exit->clone, 20, 21);
2135	$LINK_MAP->insert ($exit->clone, 21, 19);
2136	$LINK_MAP->insert ($exit->clone, 21, 20);
2137	$LINK_MAP->insert ($exit->clone, 21, 21);
2138
2139	$exit->destroy;
2140	});
2141
2142	$LINK_MAP->{deny_save} = 1;
2143	$LINK_MAP->{deny_reset} = 1;
2144
2145	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2146	}	3923	}
2147
2148	register "<global>", __PACKAGE__;
2149		3924
2150	register_command "reload" => sub {	3925	register_command "reload" => sub {
2151	my ($who, $arg) = @_;	3926	my ($who, $arg) = @_;
2152		3927
2153	if ($who->flag (FLAG_WIZ)) {	3928	if ($who->flag (FLAG_WIZ)) {
2154	$who->message ("start of reload.");
2155	reload;
2156	$who->message ("end of reload.");	3929	$who->message ("reloading server.");
		3930	async {
		3931	$Coro::current->{desc} = "perl_reload";
		3932	reload_perl;
		3933	};
2157	}	3934	}
2158	};	3935	};
2159		3936
2160	unshift @INC, $LIBDIR;	3937	unshift @INC, $LIBDIR;
2161		3938
2162	$TICK_WATCHER = Event->timer (	3939	my $bug_warning = 0;
2163	reentrant => 0,	3940
2164	prio => 0,	3941	our @WAIT_FOR_TICK;
2165	at => $NEXT_TICK || $TICK,	3942	our @WAIT_FOR_TICK_BEGIN;
2166	data => WF_AUTOCANCEL,	3943
2167	cb => sub {	3944	sub wait_for_tick {
2168	unless ($FREEZE) {	3945	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3946
		3947	my $signal = new Coro::Signal;
		3948	push @WAIT_FOR_TICK, $signal;
		3949	$signal->wait;
		3950	}
		3951
		3952	sub wait_for_tick_begin {
		3953	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3954
		3955	my $signal = new Coro::Signal;
		3956	push @WAIT_FOR_TICK_BEGIN, $signal;
		3957	$signal->wait;
		3958	}
		3959
		3960	sub tick {
		3961	if ($Coro::current != $Coro::main) {
		3962	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3963	unless ++$bug_warning > 10;
		3964	return;
		3965	}
		3966
2169	cf::server_tick; # one server iteration	3967	cf::server_tick; # one server iteration
2170	$RUNTIME += $TICK;
2171	}
2172		3968
2173	$NEXT_TICK += $TICK;	3969	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2174		3970
2175	# if we are delayed by four ticks or more, skip them all	3971	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2176	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3972	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2177		3973	Coro::async_pool {
2178	$TICK_WATCHER->at ($NEXT_TICK);	3974	$Coro::current->{desc} = "runtime saver";
2179	$TICK_WATCHER->start;
2180	},
2181	);
2182
2183	IO::AIO::max_poll_time $TICK * 0.2;
2184
2185	Event->io (
2186	fd => IO::AIO::poll_fileno,
2187	poll => 'r',
2188	prio => 5,
2189	data => WF_AUTOCANCEL,
2190	cb => \&IO::AIO::poll_cb,
2191	);
2192
2193	Event->timer (
2194	data => WF_AUTOCANCEL,
2195	after => 0,
2196	interval => 10,
2197	cb => sub {
2198	(Coro::unblock_sub {
2199	write_runtime	3975	write_runtime_sync
2200	or warn "ERROR: unable to write runtime file: $!";	3976	or warn "ERROR: unable to write runtime file: $!";
2201	})->();	3977	};
2202	},	3978	}
2203	);	3979
		3980	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3981	$sig->send;
		3982	}
		3983	while (my $sig = shift @WAIT_FOR_TICK) {
		3984	$sig->send;
		3985	}
		3986
		3987	$LOAD = ($NOW - $TICK_START) / $TICK;
		3988	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3989
		3990	if (0) {
		3991	if ($NEXT_TICK) {
		3992	my $jitter = $TICK_START - $NEXT_TICK;
		3993	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3994	warn "jitter $JITTER\n";#d#
		3995	}
		3996	}
		3997	}
		3998
		3999	{
		4000	# configure BDB
		4001
		4002	BDB::min_parallel 16;
		4003	BDB::max_poll_reqs $TICK * 0.1;
		4004	$AnyEvent::BDB::WATCHER->priority (1);
		4005
		4006	unless ($DB_ENV) {
		4007	$DB_ENV = BDB::db_env_create;
		4008	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4009	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4010	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4011	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4012	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4013
		4014	cf::sync_job {
		4015	eval {
		4016	BDB::db_env_open
		4017	$DB_ENV,
		4018	$BDBDIR,
		4019	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4020	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4021	0666;
		4022
		4023	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4024	};
		4025
		4026	cf::cleanup "db_env_open(db): $@" if $@;
		4027	};
		4028	}
		4029
		4030	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4031	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4032	};
		4033	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4034	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4035	};
		4036	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4037	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4038	};
		4039	}
		4040
		4041	{
		4042	# configure IO::AIO
		4043
		4044	IO::AIO::min_parallel 8;
		4045	IO::AIO::max_poll_time $TICK * 0.1;
		4046	undef $AnyEvent::AIO::WATCHER;
		4047	}
		4048
		4049	my $_log_backtrace;
		4050
		4051	sub _log_backtrace {
		4052	my ($msg, @addr) = @_;
		4053
		4054	$msg =~ s/\n//;
		4055
		4056	# limit the # of concurrent backtraces
		4057	if ($_log_backtrace < 2) {
		4058	++$_log_backtrace;
		4059	my $perl_bt = Carp::longmess $msg;
		4060	async {
		4061	$Coro::current->{desc} = "abt $msg";
		4062
		4063	my @bt = fork_call {
		4064	@addr = map { sprintf "%x", $_ } @addr;
		4065	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4066	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4067	or die "addr2line: $!";
		4068
		4069	my @funcs;
		4070	my @res = <$fh>;
		4071	chomp for @res;
		4072	while (@res) {
		4073	my ($func, $line) = splice @res, 0, 2, ();
		4074	push @funcs, "[$func] $line";
		4075	}
		4076
		4077	@funcs
		4078	};
		4079
		4080	LOG llevInfo, "[ABT] $perl_bt\n";
		4081	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4082	LOG llevInfo, "[ABT] $_\n" for @bt;
		4083	--$_log_backtrace;
		4084	};
		4085	} else {
		4086	LOG llevInfo, "[ABT] $msg\n";
		4087	LOG llevInfo, "[ABT] [suppressed]\n";
		4088	}
		4089	}
		4090
		4091	# load additional modules
		4092	require "cf/$_.pm" for @EXTRA_MODULES;
		4093	cf::_connect_to_perl_2;
2204		4094
2205	END { cf::emergency_save }	4095	END { cf::emergency_save }
2206		4096
2207	1	4097	1
2208		4098

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