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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.133 by root, Thu Jan 4 16:19:32 2007 UTC vs.
Revision 1.524 by root, Sun Apr 18 07:08:07 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 $RANDOM_MAPS = cf::localdir . "/random";	136	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	137
		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 $REALLY_UNLOOP; # never set to true, please :)
56		150
57	binmode STDOUT;	151	binmode STDOUT;
58	binmode STDERR;	152	binmode STDERR;
59		153
60	# read virtual server time, if available	154	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	156	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
65	}	159	}
66		160
67	mkdir cf::localdir;	161	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		162
73	# a special map that is always available	163	mkdir $_
74	our $LINK_MAP;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		165
75	our $EMERGENCY_POSITION;	166	our $EMERGENCY_POSITION;
		167
		168	sub cf::map::normalise;
		169
		170	sub in_main() {
		171	$Coro::current == $Coro::main
		172	}
		173
		174	#############################################################################
		175
		176	%REFLECT = ();
		177	for (@REFLECT) {
		178	my $reflect = JSON::XS::decode_json $_;
		179	$REFLECT{$reflect->{class}} = $reflect;
		180	}
		181
		182	# this is decidedly evil
		183	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
76		184
77	#############################################################################	185	#############################################################################
78		186
79	=head2 GLOBAL VARIABLES	187	=head2 GLOBAL VARIABLES
80		188
…		…
87	=item $cf::RUNTIME	195	=item $cf::RUNTIME
88		196
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	197	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	198	every server tick.
91		199
92	=item $cf::LIBDIR	200	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		201	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		202	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		203
94	The perl library directory, where extensions and cf-specific modules can	204	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	205	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		206	unique-items directory, player file directory, random maps directory and
		207	database environment.
96		208
97	=item $cf::NOW	209	=item $cf::NOW
98		210
99	The time of the last (current) server tick.	211	The time of the last (current) server tick.
100		212
101	=item $cf::TICK	213	=item $cf::TICK
102		214
103	The interval between server ticks, in seconds.	215	The interval between server ticks, in seconds.
104		216
		217	=item $cf::LOADAVG
		218
		219	The current CPU load on the server (alpha-smoothed), as a value between 0
		220	(none) and 1 (overloaded), indicating how much time is spent on processing
		221	objects per tick. Healthy values are < 0.5.
		222
		223	=item $cf::LOAD
		224
		225	The raw value load value from the last tick.
		226
105	=item %cf::CFG	227	=item %cf::CFG
106		228
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	229	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	230	from wherever your confdir points to.
109		231
		232	=item cf::wait_for_tick, cf::wait_for_tick_begin
		233
		234	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		235	returns directly I<after> the tick processing (and consequently, can only wake one process
		236	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		237
		238	=item @cf::INVOKE_RESULTS
		239
		240	This array contains the results of the last C<invoke ()> call. When
		241	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		242	that call.
		243
		244	=item %cf::REFLECT
		245
		246	Contains, for each (C++) class name, a hash reference with information
		247	about object members (methods, scalars, arrays and flags) and other
		248	metadata, which is useful for introspection.
		249
110	=back	250	=back
111		251
112	=cut	252	=cut
113		253
114	BEGIN {	254	$Coro::State::WARNHOOK = sub {
115	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	255	my $msg = join "", @_;
117	utf8::encode $msg;
118		256
119	$msg .= "\n"	257	$msg .= "\n"
120	unless $msg =~ /\n$/;	258	unless $msg =~ /\n$/;
121		259
		260	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		261
122	LOG llevError, "cfperl: $msg";	262	LOG llevError, $msg;
123	};	263	};
124	}	264
		265	$Coro::State::DIEHOOK = sub {
		266	return unless $^S eq 0; # "eq", not "=="
		267
		268	warn Carp::longmess $_[0];
		269
		270	if (in_main) {#d#
		271	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		272	return;#d#
		273	}#d#
		274
		275	# kill coroutine otherwise
		276	Coro::terminate
		277	};
125		278
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	279	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	280	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	281	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	282	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	283	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		284	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	285	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		286
133	# we bless all objects into (empty) derived classes to force a method lookup	287	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	288	# within the Safe compartment.
135	for my $pkg (qw(	289	for my $pkg (qw(
136	cf::global cf::attachable	290	cf::global cf::attachable
137	cf::object cf::object::player	291	cf::object cf::object::player
138	cf::client cf::player	292	cf::client cf::player
139	cf::arch cf::living	293	cf::arch cf::living
		294	cf::map cf::mapspace
140	cf::map cf::party cf::region	295	cf::party cf::region
141	)) {	296	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	297	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	298	}
145		299
146	$Event::DIED = sub {	300	$EV::DIED = sub {
147	warn "error in event callback: @_";	301	Carp::cluck "error in event callback: @_";
148	};	302	};
149		303
150	my %ext_pkg;	304	#############################################################################
151	my @exts;
152	my @hook;
153		305
154	=head2 UTILITY FUNCTIONS	306	=head2 UTILITY FUNCTIONS
155		307
156	=over 4	308	=over 4
157		309
158	=cut	310	=item dumpval $ref
159		311
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	312	=cut
161		313
		314	sub dumpval {
		315	eval {
		316	local $SIG{__DIE__};
		317	my $d;
		318	if (1) {
		319	$d = new Data::Dumper([$_[0]], ["*var"]);
		320	$d->Terse(1);
		321	$d->Indent(2);
		322	$d->Quotekeys(0);
		323	$d->Useqq(1);
		324	#$d->Bless(...);
		325	$d->Seen($_[1]) if @_ > 1;
		326	$d = $d->Dump();
		327	}
		328	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		329	$d
		330	} || "[unable to dump $_[0]: '$@']";
		331	}
		332
162	=item $ref = cf::from_json $json	333	=item $ref = cf::decode_json $json
163		334
164	Converts a JSON string into the corresponding perl data structure.	335	Converts a JSON string into the corresponding perl data structure.
165		336
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	337	=item $json = cf::encode_json $ref
174		338
175	Converts a perl data structure into its JSON representation.	339	Converts a perl data structure into its JSON representation.
176		340
177	=cut	341	=cut
178		342
179	sub to_json($) {	343	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		344
184	=item my $guard = cf::guard { BLOCK }	345	sub encode_json($) { $json_coder->encode ($_[0]) }
		346	sub decode_json($) { $json_coder->decode ($_[0]) }
185		347
186	Run the given callback when the guard object gets destroyed (useful for	348	=item cf::post_init { BLOCK }
187	coroutine cancellations).
188		349
189	You can call C<< ->cancel >> on the guard object to stop the block from	350	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
190	being executed.	351	but I<before> the server starts ticking again.
191		352
192	=cut	353	The cdoeblock will have a single boolean argument to indicate whether this
		354	is a reload or not.
193		355
194	sub guard(&) {	356	=cut
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197		357
198	sub cf::guard::cancel {	358	sub post_init(&) {
199	${$_[0]} = sub { };	359	push @POST_INIT, shift;
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}	360	}
205		361
206	=item cf::lock_wait $string	362	=item cf::lock_wait $string
207		363
208	Wait until the given lock is available. See cf::lock_acquire.	364	Wait until the given lock is available. See cf::lock_acquire.
209		365
210	=item my $lock = cf::lock_acquire $string	366	=item my $lock = cf::lock_acquire $string
211		367
212	Wait until the given lock is available and then acquires it and returns	368	Wait until the given lock is available and then acquires it and returns
213	a guard object. If the guard object gets destroyed (goes out of scope,	369	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
214	for example when the coroutine gets canceled), the lock is automatically	370	for example when the coroutine gets canceled), the lock is automatically
215	returned.	371	returned.
216		372
		373	Locks are *not* recursive, locking from the same coro twice results in a
		374	deadlocked coro.
		375
217	Lock names should begin with a unique identifier (for example, cf::map::find	376	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	377	uses map_find and cf::map::load uses map_load).
219		378
220	=cut	379	=item $locked = cf::lock_active $string
221		380
222	our %LOCK;	381	Return true if the lock is currently active, i.e. somebody has locked it.
		382
		383	=cut
		384
		385	our $LOCKS = new Coro::SemaphoreSet;
223		386
224	sub lock_wait($) {	387	sub lock_wait($) {
225	my ($key) = @_;	388	$LOCKS->wait ($_[0]);
226
227	# wait for lock, if any
228	while ($LOCK{$key}) {
229	push @{ $LOCK{$key} }, $Coro::current;
230	Coro::schedule;
231	}
232	}	389	}
233		390
234	sub lock_acquire($) {	391	sub lock_acquire($) {
235	my ($key) = @_;	392	$LOCKS->guard ($_[0])
		393	}
236		394
237	# wait, to be sure we are not locked	395	sub lock_active($) {
238	lock_wait $key;	396	$LOCKS->count ($_[0]) < 1
		397	}
239		398
240	$LOCK{$key} = [];	399	sub freeze_mainloop {
		400	tick_inhibit_inc;
241		401
242	cf::guard {	402	&Guard::guard (\&tick_inhibit_dec);
243	# wake up all waiters, to be on the safe side	403	}
244	$_->ready for @{ delete $LOCK{$key} };	404
		405	=item cf::periodic $interval, $cb
		406
		407	Like EV::periodic, but randomly selects a starting point so that the actions
		408	get spread over time.
		409
		410	=cut
		411
		412	sub periodic($$) {
		413	my ($interval, $cb) = @_;
		414
		415	my $start = rand List::Util::min 180, $interval;
		416
		417	EV::periodic $start, $interval, 0, $cb
		418	}
		419
		420	=item cf::get_slot $time[, $priority[, $name]]
		421
		422	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		423	This call blocks and returns only when you have at least C<$time> seconds
		424	of cpu time till the next tick. The slot is only valid till the next cede.
		425
		426	The optional C<$name> can be used to identify the job to run. It might be
		427	used for statistical purposes and should identify the same time-class.
		428
		429	Useful for short background jobs.
		430
		431	=cut
		432
		433	our @SLOT_QUEUE;
		434	our $SLOT_QUEUE;
		435	our $SLOT_DECAY = 0.9;
		436
		437	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		438	$SLOT_QUEUE = Coro::async {
		439	$Coro::current->desc ("timeslot manager");
		440
		441	my $signal = new Coro::Signal;
		442	my $busy;
		443
		444	while () {
		445	next_job:
		446
		447	my $avail = cf::till_tick;
		448
		449	for (0 .. $#SLOT_QUEUE) {
		450	if ($SLOT_QUEUE[$_][0] <= $avail) {
		451	$busy = 0;
		452	my $job = splice @SLOT_QUEUE, $_, 1, ();
		453	$job->[2]->send;
		454	Coro::cede;
		455	goto next_job;
		456	} else {
		457	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		458	}
		459	}
		460
		461	if (@SLOT_QUEUE) {
		462	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		463	push @cf::WAIT_FOR_TICK, $signal;
		464	$signal->wait;
		465	} else {
		466	$busy = 0;
		467	Coro::schedule;
		468	}
245	}	469	}
		470	};
		471
		472	sub get_slot($;$$) {
		473	return if tick_inhibit || $Coro::current == $Coro::main;
		474
		475	my ($time, $pri, $name) = @_;
		476
		477	$time = clamp $time, 0.01, $TICK * .6;
		478
		479	my $sig = new Coro::Signal;
		480
		481	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		482	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		483	$SLOT_QUEUE->ready;
		484	$sig->wait;
246	}	485	}
247		486
248	=item cf::async { BLOCK }	487	=item cf::async { BLOCK }
249		488
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	489	Currently the same as Coro::async_pool, meaning you cannot use
251	error instead of exiting the server in case of a problem.	490	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		491	thing you are allowed to do is call C<prio> on it.
252		492
253	=cut	493	=cut
254		494
255	sub async(&) {	495	BEGIN { *async = \&Coro::async_pool }
256	my ($cb) = @_;
257
258	Coro::async {
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}
263
264	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;
266
267	my $guard = guard { $TICK_WATCHER->start };
268	$TICK_WATCHER->stop;
269	$guard
270	}
271		496
272	=item cf::sync_job { BLOCK }	497	=item cf::sync_job { BLOCK }
273		498
274	The design of crossfire+ requires that the main coro ($Coro::main) is	499	The design of Deliantra requires that the main coroutine ($Coro::main)
275	always able to handle events or runnable, as crossfire+ is only partly	500	is always able to handle events or runnable, as Deliantra is only
276	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	501	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		502	acceptable.
277		503
278	If it must be done, put the blocking parts into C<sync_job>. This will run	504	If it must be done, put the blocking parts into C<sync_job>. This will run
279	the given BLOCK in another coroutine while waiting for the result. The	505	the given BLOCK in another coroutine while waiting for the result. The
280	server will be frozen during this time, so the block should either finish	506	server will be frozen during this time, so the block should either finish
281	fast or be very important.	507	fast or be very important.
…		…
284		510
285	sub sync_job(&) {	511	sub sync_job(&) {
286	my ($job) = @_;	512	my ($job) = @_;
287		513
288	if ($Coro::current == $Coro::main) {	514	if ($Coro::current == $Coro::main) {
		515	my $time = AE::time;
		516
289	# this is the main coro, too bad, we have to block	517	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	518	# till the operation succeeds, freezing the server :/
291		519
292	# TODO: use suspend/resume instead	520	LOG llevError, Carp::longmess "sync job";#d#
293	# (but this is cancel-safe)	521
294	my $freeze_guard = freeze_mainloop;	522	my $freeze_guard = freeze_mainloop;
295		523
296	my $busy = 1;	524	my $busy = 1;
297	my @res;	525	my @res;
298		526
299	(Coro::async {	527	(async {
		528	$Coro::current->desc ("sync job coro");
300	@res = eval { $job->() };	529	@res = eval { $job->() };
301	warn $@ if $@;	530	warn $@ if $@;
302	undef $busy;	531	undef $busy;
303	})->prio (Coro::PRIO_MAX);	532	})->prio (Coro::PRIO_MAX);
304		533
305	while ($busy) {	534	while ($busy) {
		535	if (Coro::nready) {
306	Coro::cede_notself;	536	Coro::cede_notself;
307	Event::one_event unless Coro::nready;	537	} else {
		538	EV::loop EV::LOOP_ONESHOT;
308	}	539	}
		540	}
		541
		542	my $time = AE::time - $time;
		543
		544	$TICK_START += $time; # do not account sync jobs to server load
309		545
310	wantarray ? @res : $res[0]	546	wantarray ? @res : $res[0]
311	} else {	547	} else {
312	# we are in another coroutine, how wonderful, everything just works	548	# we are in another coroutine, how wonderful, everything just works
313		549
314	$job->()	550	$job->()
315	}	551	}
316	}	552	}
317		553
318	=item $coro = cf::coro { BLOCK }	554	=item $coro = cf::async_ext { BLOCK }
319		555
320	Creates and returns a new coro. This coro is automcatially being canceled	556	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	557	extension calling this is being unloaded.
322		558
323	=cut	559	=cut
324		560
325	sub coro(&) {	561	sub async_ext(&) {
326	my $cb = shift;	562	my $cb = shift;
327		563
328	my $coro = &cf::async ($cb);	564	my $coro = &Coro::async ($cb);
329		565
330	$coro->on_destroy (sub {	566	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	567	delete $EXT_CORO{$coro+0};
332	});	568	});
333	$EXT_CORO{$coro+0} = $coro;	569	$EXT_CORO{$coro+0} = $coro;
334		570
335	$coro	571	$coro
336	}	572	}
337		573
338	sub write_runtime {	574	=item fork_call { }, $args
339	my $runtime = cf::localdir . "/runtime";
340		575
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	576	Executes the given code block with the given arguments in a seperate
342	or return;	577	process, returning the results. Everything must be serialisable with
		578	Coro::Storable. May, of course, block. Note that the executed sub may
		579	never block itself or use any form of event handling.
343		580
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	581	=cut
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;
347		582
348	aio_fsync $fh	583	sub fork_call(&@) {
349	and return;	584	my ($cb, @args) = @_;
350		585
351	close $fh	586	# we seemingly have to make a local copy of the whole thing,
352	or return;	587	# otherwise perl prematurely frees the stuff :/
		588	# TODO: investigate and fix (likely this will be rather laborious)
353		589
354	aio_rename "$runtime~", $runtime	590	my @res = Coro::Util::fork_eval {
355	and return;	591	reset_signals;
		592	&$cb
		593	}, @args;
356		594
		595	wantarray ? @res : $res[-1]
		596	}
		597
		598	sub objinfo {
357	1	599	(
		600	"counter value" => cf::object::object_count,
		601	"objects created" => cf::object::create_count,
		602	"objects destroyed" => cf::object::destroy_count,
		603	"freelist size" => cf::object::free_count,
		604	"allocated objects" => cf::object::objects_size,
		605	"active objects" => cf::object::actives_size,
		606	)
		607	}
		608
		609	=item $coin = coin_from_name $name
		610
		611	=cut
		612
		613	our %coin_alias = (
		614	"silver" => "silvercoin",
		615	"silvercoin" => "silvercoin",
		616	"silvercoins" => "silvercoin",
		617	"gold" => "goldcoin",
		618	"goldcoin" => "goldcoin",
		619	"goldcoins" => "goldcoin",
		620	"platinum" => "platinacoin",
		621	"platinumcoin" => "platinacoin",
		622	"platinumcoins" => "platinacoin",
		623	"platina" => "platinacoin",
		624	"platinacoin" => "platinacoin",
		625	"platinacoins" => "platinacoin",
		626	"royalty" => "royalty",
		627	"royalties" => "royalty",
		628	);
		629
		630	sub coin_from_name($) {
		631	$coin_alias{$_[0]}
		632	? cf::arch::find $coin_alias{$_[0]}
		633	: undef
		634	}
		635
		636	=item $value = cf::db_get $family => $key
		637
		638	Returns a single value from the environment database.
		639
		640	=item cf::db_put $family => $key => $value
		641
		642	Stores the given C<$value> in the family. It can currently store binary
		643	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		644
		645	=item $db = cf::db_table "name"
		646
		647	Create and/or open a new database table. The string must not be "db" and must be unique
		648	within each server.
		649
		650	=cut
		651
		652	sub db_table($) {
		653	my ($name) = @_;
		654	my $db = BDB::db_create $DB_ENV;
		655
		656	eval {
		657	$db->set_flags (BDB::CHKSUM);
		658
		659	utf8::encode $name;
		660	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		661	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		662	cf::cleanup "db_open(db): $!" if $!;
		663	};
		664	cf::cleanup "db_open(db): $@" if $@;
		665
		666	$db
		667	}
		668
		669	our $DB;
		670
		671	sub db_init {
		672	cf::sync_job {
		673	$DB ||= db_table "db";
		674	};
		675	}
		676
		677	sub db_get($$) {
		678	my $key = "$_[0]/$_[1]";
		679
		680	cf::sync_job {
		681	BDB::db_get $DB, undef, $key, my $data;
		682
		683	$! ? ()
		684	: $data
		685	}
		686	}
		687
		688	sub db_put($$$) {
		689	BDB::dbreq_pri 4;
		690	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		691	}
		692
		693	=item cf::cache $id => [$paths...], $processversion => $process
		694
		695	Generic caching function that returns the value of the resource $id,
		696	caching and regenerating as required.
		697
		698	This function can block.
		699
		700	=cut
		701
		702	sub cache {
		703	my ($id, $src, $processversion, $process) = @_;
		704
		705	my $meta =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	aio_stat $_
		710	and Carp::croak "$_: $!";
		711
		712	($_, (stat _)[7,9])
		713	} @$src;
		714
		715	my $dbmeta = db_get cache => "$id/meta";
		716	if ($dbmeta ne $meta) {
		717	# changed, we may need to process
		718
		719	my @data;
		720	my $md5;
		721
		722	for (0 .. $#$src) {
		723	0 <= aio_load $src->[$_], $data[$_]
		724	or Carp::croak "$src->[$_]: $!";
		725	}
		726
		727	# if processing is expensive, check
		728	# checksum first
		729	if (1) {
		730	$md5 =
		731	join "\x00",
		732	$processversion,
		733	map {
		734	cf::cede_to_tick;
		735	($src->[$_], Digest::MD5::md5_hex $data[$_])
		736	} 0.. $#$src;
		737
		738
		739	my $dbmd5 = db_get cache => "$id/md5";
		740	if ($dbmd5 eq $md5) {
		741	db_put cache => "$id/meta", $meta;
		742
		743	return db_get cache => "$id/data";
		744	}
		745	}
		746
		747	my $t1 = Time::HiRes::time;
		748	my $data = $process->(\@data);
		749	my $t2 = Time::HiRes::time;
		750
		751	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		752
		753	db_put cache => "$id/data", $data;
		754	db_put cache => "$id/md5" , $md5;
		755	db_put cache => "$id/meta", $meta;
		756
		757	return $data;
		758	}
		759
		760	db_get cache => "$id/data"
		761	}
		762
		763	=item cf::datalog type => key => value, ...
		764
		765	Log a datalog packet of the given type with the given key-value pairs.
		766
		767	=cut
		768
		769	sub datalog($@) {
		770	my ($type, %kv) = @_;
		771	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
358	}	772	}
359		773
360	=back	774	=back
361		775
362	=cut	776	=cut
363		777
364	#############################################################################	778	#############################################################################
365		779
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483
484	#############################################################################
485
486	=head2 ATTACHABLE OBJECTS	780	=head2 ATTACHABLE OBJECTS
487		781
488	Many objects in crossfire are so-called attachable objects. That means you can	782	Many objects in deliantra are so-called attachable objects. That means you can
489	attach callbacks/event handlers (a collection of which is called an "attachment")	783	attach callbacks/event handlers (a collection of which is called an "attachment")
490	to it. All such attachable objects support the following methods.	784	to it. All such attachable objects support the following methods.
491		785
492	In the following description, CLASS can be any of C<global>, C<object>	786	In the following description, CLASS can be any of C<global>, C<object>
493	C<player>, C<client> or C<map> (i.e. the attachable objects in	787	C<player>, C<client> or C<map> (i.e. the attachable objects in
494	crossfire+).	788	Deliantra).
495		789
496	=over 4	790	=over 4
497		791
498	=item $attachable->attach ($attachment, key => $value...)	792	=item $attachable->attach ($attachment, key => $value...)
499		793
…		…
543	=item cf::CLASS::attachment $name, ...	837	=item cf::CLASS::attachment $name, ...
544		838
545	Register an attachment by C<$name> through which attachable objects of the	839	Register an attachment by C<$name> through which attachable objects of the
546	given CLASS can refer to this attachment.	840	given CLASS can refer to this attachment.
547		841
548	Some classes such as crossfire maps and objects can specify attachments	842	Some classes such as deliantra maps and objects can specify attachments
549	that are attached at load/instantiate time, thus the need for a name.	843	that are attached at load/instantiate time, thus the need for a name.
550		844
551	These calls expect any number of the following handler/hook descriptions:	845	These calls expect any number of the following handler/hook descriptions:
552		846
553	=over 4	847	=over 4
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	907	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	908	our @CB_MAP = ();
615		909
616	my %attachment;	910	my %attachment;
617		911
		912	sub cf::attachable::thawer_merge {
		913	# simply override everything except _meta
		914	local $_[0]{_meta};
		915	%{$_[0]} = %{$_[1]};
		916	}
		917
618	sub _attach_cb($$$$) {	918	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	919	my ($registry, $event, $prio, $cb) = @_;
620		920
621	use sort 'stable';	921	use sort 'stable';
622		922
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	956	$registry = $CB_TYPE[$object_type] ||= [];
657		957
658	} elsif ($type eq "subtype") {	958	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	959	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	960	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	961	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		962
663	} elsif ($type eq "package") {	963	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	964	my $pkg = shift @arg;
665		965
666	while (my ($name, $id) = each %cb_id) {	966	while (my ($name, $id) = each %cb_id) {
…		…
695	_attach $registry, $klass, @attach;	995	_attach $registry, $klass, @attach;
696	}	996	}
697		997
698	$obj->{$name} = \%arg;	998	$obj->{$name} = \%arg;
699	} else {	999	} else {
700	warn "object uses attachment '$name' that is not available, postponing.\n";	1000	warn "object uses attachment '$name' which is not available, postponing.\n";
701	}	1001	}
702		1002
703	$obj->{_attachment}{$name} = undef;	1003	$obj->{_attachment}{$name} = undef;
704	}	1004	}
705		1005
…		…
707	if (ref $_[0]) {	1007	if (ref $_[0]) {
708	_object_attach @_;	1008	_object_attach @_;
709	} else {	1009	} else {
710	_attach shift->_attach_registry, @_;	1010	_attach shift->_attach_registry, @_;
711	}	1011	}
		1012	_recalc_want;
712	};	1013	};
713		1014
714	# all those should be optimised	1015	# all those should be optimised
715	sub cf::attachable::detach {	1016	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	1017	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	1020	delete $obj->{_attachment}{$name};
720	reattach ($obj);	1021	reattach ($obj);
721	} else {	1022	} else {
722	Carp::croak "cannot, currently, detach class attachments";	1023	Carp::croak "cannot, currently, detach class attachments";
723	}	1024	}
		1025	_recalc_want;
724	};	1026	};
725		1027
726	sub cf::attachable::attached {	1028	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	1029	my ($obj, $name) = @_;
728		1030
…		…
743	";	1045	";
744	die if $@;	1046	die if $@;
745	}	1047	}
746		1048
747	our $override;	1049	our $override;
748	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1050	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
749		1051
750	sub override {	1052	sub override {
751	$override = 1;	1053	$override = 1;
752	@invoke_results = ();	1054	@INVOKE_RESULTS = (@_);
753	}	1055	}
754		1056
755	sub do_invoke {	1057	sub do_invoke {
756	my $event = shift;	1058	my $event = shift;
757	my $callbacks = shift;	1059	my $callbacks = shift;
758		1060
759	@invoke_results = ();	1061	@INVOKE_RESULTS = ();
760		1062
761	local $override;	1063	local $override;
762		1064
763	for (@$callbacks) {	1065	for (@$callbacks) {
764	eval { &{$_->[1]} };	1066	eval { &{$_->[1]} };
…		…
773	}	1075	}
774		1076
775	0	1077	0
776	}	1078	}
777		1079
778	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1080	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
779		1081
780	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1082	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
781		1083
782	Generate an object-specific event with the given arguments.	1084	Generate an object-specific event with the given arguments.
783		1085
784	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1086	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
785	removed in future versions), and there is no public API to access override	1087	removed in future versions), and there is no public API to access override
786	results (if you must, access C<@cf::invoke_results> directly).	1088	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
787		1089
788	=back	1090	=back
789		1091
790	=cut	1092	=cut
791		1093
792	#############################################################################	1094	#############################################################################
793	# object support	1095	# object support
		1096
		1097	sub _object_equal($$);
		1098	sub _object_equal($$) {
		1099	my ($a, $b) = @_;
		1100
		1101	return 0 unless (ref $a) eq (ref $b);
		1102
		1103	if ("HASH" eq ref $a) {
		1104	my @ka = keys %$a;
		1105	my @kb = keys %$b;
		1106
		1107	return 0 if @ka != @kb;
		1108
		1109	for (0 .. $#ka) {
		1110	return 0 unless $ka[$_] eq $kb[$_];
		1111	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1112	}
		1113
		1114	} elsif ("ARRAY" eq ref $a) {
		1115
		1116	return 0 if @$a != @$b;
		1117
		1118	for (0 .. $#$a) {
		1119	return 0 unless _object_equal $a->[$_], $b->[$_];
		1120	}
		1121
		1122	} elsif ($a ne $b) {
		1123	return 0;
		1124	}
		1125
		1126	1
		1127	}
		1128
		1129	our $SLOW_MERGES;#d#
		1130	sub _can_merge {
		1131	my ($ob1, $ob2) = @_;
		1132
		1133	++$SLOW_MERGES;#d#
		1134
		1135	# we do the slow way here
		1136	return _object_equal $ob1, $ob2
		1137	}
794		1138
795	sub reattach {	1139	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	1140	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	1141	my ($obj) = @_;
		1142
		1143	# no longer needed after getting rid of delete_package?
		1144	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		1145
799	my $registry = $obj->registry;	1146	my $registry = $obj->registry;
800		1147
801	@$registry = ();	1148	@$registry = ();
802		1149
…		…
817	cf::attachable->attach (	1164	cf::attachable->attach (
818	prio => -1000000,	1165	prio => -1000000,
819	on_instantiate => sub {	1166	on_instantiate => sub {
820	my ($obj, $data) = @_;	1167	my ($obj, $data) = @_;
821		1168
822	$data = from_json $data;	1169	$data = decode_json $data;
823		1170
824	for (@$data) {	1171	for (@$data) {
825	my ($name, $args) = @$_;	1172	my ($name, $args) = @$_;
826		1173
827	$obj->attach ($name, %{$args || {} });	1174	$obj->attach ($name, %{$args || {} });
…		…
843	sub object_freezer_save {	1190	sub object_freezer_save {
844	my ($filename, $rdata, $objs) = @_;	1191	my ($filename, $rdata, $objs) = @_;
845		1192
846	sync_job {	1193	sync_job {
847	if (length $$rdata) {	1194	if (length $$rdata) {
		1195	utf8::decode (my $decname = $filename);
848	warn sprintf "saving %s (%d,%d)\n",	1196	warn sprintf "saving %s (%d,%d)\n",
849	$filename, length $$rdata, scalar @$objs;	1197	$decname, length $$rdata, scalar @$objs;
850		1198
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1199	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1200	aio_chmod $fh, SAVE_MODE;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1201	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1202	if ($cf::USE_FSYNC) {
		1203	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;
854	aio_fsync $fh;	1204	aio_fsync $fh;
		1205	}
855	close $fh;	1206	aio_close $fh;
856		1207
857	if (@$objs) {	1208	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1209	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	1210	aio_chmod $fh, SAVE_MODE;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	1211	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	1212	aio_write $fh, 0, (length $data), $data, 0;
		1213	if ($cf::USE_FSYNC) {
		1214	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
862	aio_fsync $fh;	1215	aio_fsync $fh;
		1216	}
863	close $fh;	1217	aio_close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	1218	aio_rename "$filename.pst~", "$filename.pst";
865	}	1219	}
866	} else {	1220	} else {
867	aio_unlink "$filename.pst";	1221	aio_unlink "$filename.pst";
868	}	1222	}
869		1223
870	aio_rename "$filename~", $filename;	1224	aio_rename "$filename~", $filename;
		1225
		1226	$filename =~ s%/[^/]+$%%;
		1227	aio_pathsync $filename if $cf::USE_FSYNC;
871	} else {	1228	} else {
872	warn "FATAL: $filename~: $!\n";	1229	warn "unable to save objects: $filename~: $!\n";
873	}	1230	}
874	} else {	1231	} else {
875	aio_unlink $filename;	1232	aio_unlink $filename;
876	aio_unlink "$filename.pst";	1233	aio_unlink "$filename.pst";
877	}	1234	}
878	}	1235	};
879	}	1236	}
880		1237
881	sub object_freezer_as_string {	1238	sub object_freezer_as_string {
882	my ($rdata, $objs) = @_;	1239	my ($rdata, $objs) = @_;
883		1240
…		…
895	or return;	1252	or return;
896		1253
897	unless (aio_stat "$filename.pst") {	1254	unless (aio_stat "$filename.pst") {
898	(aio_load "$filename.pst", $av) >= 0	1255	(aio_load "$filename.pst", $av) >= 0
899	or return;	1256	or return;
		1257
900	$av = eval { (Storable::thaw $av)->{objs} };	1258	my $st = eval { Coro::Storable::thaw $av };
		1259	$av = $st->{objs};
901	}	1260	}
902		1261
		1262	utf8::decode (my $decname = $filename);
903	warn sprintf "loading %s (%d)\n",	1263	warn sprintf "loading %s (%d,%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	1264	$decname, length $data, scalar @{$av || []};
		1265
905	return ($data, $av);	1266	($data, $av)
906	}	1267	}
		1268
		1269	=head2 COMMAND CALLBACKS
		1270
		1271	=over 4
		1272
		1273	=cut
907		1274
908	#############################################################################	1275	#############################################################################
909	# command handling &c	1276	# command handling &c
910		1277
911	=item cf::register_command $name => \&callback($ob,$args);	1278	=item cf::register_command $name => \&callback($ob,$args);
…		…
924	push @{ $COMMAND{$name} }, [$caller, $cb];	1291	push @{ $COMMAND{$name} }, [$caller, $cb];
925	}	1292	}
926		1293
927	=item cf::register_extcmd $name => \&callback($pl,$packet);	1294	=item cf::register_extcmd $name => \&callback($pl,$packet);
928		1295
929	Register a callbackf ro execution when the client sends an extcmd packet.	1296	Register a callback for execution when the client sends an (synchronous)
		1297	extcmd packet. Ext commands will be processed in the order they are
		1298	received by the server, like other user commands. The first argument is
		1299	the logged-in player. Ext commands can only be processed after a player
		1300	has logged in successfully.
930		1301
931	If the callback returns something, it is sent back as if reply was being	1302	If the callback returns something, it is sent back as if reply was being
932	called.	1303	called.
933		1304
		1305	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1306
		1307	Register a callback for execution when the client sends an (asynchronous)
		1308	exticmd packet. Exti commands are processed by the server as soon as they
		1309	are received, i.e. out of order w.r.t. other commands. The first argument
		1310	is a client socket. Exti commands can be received anytime, even before
		1311	log-in.
		1312
		1313	If the callback returns something, it is sent back as if reply was being
		1314	called.
		1315
934	=cut	1316	=cut
935		1317
936	sub register_extcmd {	1318	sub register_extcmd {
937	my ($name, $cb) = @_;	1319	my ($name, $cb) = @_;
938		1320
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	1321	$EXTCMD{$name} = $cb;
943	}	1322	}
		1323
		1324	sub register_exticmd {
		1325	my ($name, $cb) = @_;
		1326
		1327	$EXTICMD{$name} = $cb;
		1328	}
		1329
		1330	use File::Glob ();
944		1331
945	cf::player->attach (	1332	cf::player->attach (
946	on_command => sub {	1333	on_unknown_command => sub {
947	my ($pl, $name, $params) = @_;	1334	my ($pl, $name, $params) = @_;
948		1335
949	my $cb = $COMMAND{$name}	1336	my $cb = $COMMAND{$name}
950	or return;	1337	or return;
951		1338
…		…
956	cf::override;	1343	cf::override;
957	},	1344	},
958	on_extcmd => sub {	1345	on_extcmd => sub {
959	my ($pl, $buf) = @_;	1346	my ($pl, $buf) = @_;
960		1347
961	my $msg = eval { from_json $buf };	1348	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
962		1349
963	if (ref $msg) {	1350	if (ref $msg) {
		1351	my ($type, $reply, @payload) =
		1352	"ARRAY" eq ref $msg
		1353	? @$msg
		1354	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1355
		1356	my @reply;
		1357
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1358	if (my $cb = $EXTCMD{$type}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	1359	@reply = $cb->($pl, @payload);
966	$pl->ext_reply ($msg->{msgid}, %reply);
967	}
968	}	1360	}
		1361
		1362	$pl->ext_reply ($reply, @reply)
		1363	if $reply;
		1364
969	} else {	1365	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1366	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
971	}	1367	}
972		1368
973	cf::override;	1369	cf::override;
974	},	1370	},
975	);	1371	);
976		1372
977	sub register {	1373	# "readahead" all extensions
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	1374	sub cache_extensions {
984	my ($path) = @_;	1375	my $grp = IO::AIO::aio_group;
985		1376
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1377	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
987	my $base = $1;	1378	for (grep /\.ext$/, @{$_[0]}) {
988	my $pkg = $1;	1379	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991
992	warn "loading '$path' into '$pkg'\n";
993
994	open my $fh, "<:utf8", $path
995	or die "$path: $!";
996
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @exts, $pkg;
1008	$ext_pkg{$base} = $pkg;
1009
1010	# no strict 'refs';
1011	# @{"$pkg\::ISA"} = ext::;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }
1026
1027	# remove commands
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}	1380	}
1036	}	1381	};
1037		1382
1038	# remove extcmds	1383	$grp
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}	1384	}
1052		1385
1053	sub load_extensions {	1386	sub load_extensions {
		1387	cf::sync_job {
		1388	my %todo;
		1389
1054	for my $ext (<$LIBDIR/*.ext>) {	1390	for my $path (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;	1391	next unless -r $path;
1056	eval {	1392
1057	load_extension $ext;	1393	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1394	my $base = $1;
		1395	my $pkg = $1;
		1396	$pkg =~ s/[^[:word:]]/_/g;
		1397	$pkg = "ext::$pkg";
		1398
		1399	open my $fh, "<:utf8", $path
		1400	or die "$path: $!";
		1401
		1402	my $source = do { local $/; <$fh> };
		1403
		1404	my %ext = (
		1405	path => $path,
		1406	base => $base,
		1407	pkg => $pkg,
		1408	);
		1409
		1410	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1411	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1412
		1413	$ext{source} =
		1414	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1415	. "#line 1 \"$path\"\n{\n"
		1416	. $source
		1417	. "\n};\n1";
		1418
		1419	$todo{$base} = \%ext;
		1420	}
		1421
		1422	my $pass = 0;
		1423	my %done;
		1424	while (%todo) {
		1425	my $progress;
		1426
		1427	++$pass;
		1428
		1429	ext:
		1430	while (my ($k, $v) = each %todo) {
		1431	for (split /,\s*/, $v->{meta}{depends}) {
		1432	next ext
		1433	unless exists $done{$_};
		1434	}
		1435
		1436	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1437
		1438	my $active = eval $v->{source};
		1439
		1440	if (length $@) {
		1441	warn "$v->{path}: $@\n";
		1442
		1443	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1444	if exists $v->{meta}{mandatory};
		1445
		1446	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1447	delete $todo{$k};
		1448	} else {
		1449	$done{$k} = delete $todo{$k};
		1450	push @EXTS, $v->{pkg};
		1451	$progress = 1;
		1452
		1453	warn "$v->{base}: extension inactive.\n"
		1454	unless $active;
		1455	}
1058	1	1456	}
1059	} or warn "$ext not loaded: $@";	1457
		1458	unless ($progress) {
		1459	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1460
		1461	while (my ($k, $v) = each %todo) {
		1462	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1463	if exists $v->{meta}{mandatory};
		1464	}
		1465	}
		1466	}
1060	}	1467	};
1061	}	1468	}
1062		1469
1063	#############################################################################	1470	#############################################################################
1064	# load/save/clean perl data associated with a map
1065		1471
1066	*cf::mapsupport::on_clean = sub {	1472	=back
		1473
		1474	=head2 CORE EXTENSIONS
		1475
		1476	Functions and methods that extend core deliantra objects.
		1477
		1478	=cut
		1479
		1480	package cf::player;
		1481
		1482	use Coro::AIO;
		1483
		1484	=head3 cf::player
		1485
		1486	=over 4
		1487
		1488	=item cf::player::num_playing
		1489
		1490	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1491
		1492	=cut
		1493
		1494	sub num_playing {
		1495	scalar grep
		1496	$_->ob->map
		1497	&& !$_->hidden
		1498	&& !$_->ob->flag (cf::FLAG_WIZ),
		1499	cf::player::list
		1500	}
		1501
		1502	=item cf::player::find $login
		1503
		1504	Returns the given player object, loading it if necessary (might block).
		1505
		1506	=cut
		1507
		1508	sub playerdir($) {
		1509	"$PLAYERDIR/"
		1510	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1511	}
		1512
		1513	sub path($) {
		1514	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1515
		1516	(playerdir $login) . "/playerdata"
		1517	}
		1518
		1519	sub find_active($) {
		1520	$cf::PLAYER{$_[0]}
		1521	and $cf::PLAYER{$_[0]}->active
		1522	and $cf::PLAYER{$_[0]}
		1523	}
		1524
		1525	sub exists($) {
1067	my ($map) = @_;	1526	my ($login) = @_;
1068		1527
1069	my $path = $map->tmpname;	1528	$cf::PLAYER{$login}
1070	defined $path or return;	1529	or !aio_stat path $login
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}	1530	}
1083		1531
1084	# TODO: compatibility cruft, remove when no longer needed	1532	sub find($) {
		1533	return $cf::PLAYER{$_[0]} || do {
		1534	my $login = $_[0];
		1535
		1536	my $guard = cf::lock_acquire "user_find:$login";
		1537
		1538	$cf::PLAYER{$_[0]} || do {
		1539	# rename old playerfiles to new ones
		1540	#TODO: remove when no longer required
		1541	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1542	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1543	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1544	aio_unlink +(playerdir $login) . "/$login.pl";
		1545
		1546	my $f = new_from_file cf::object::thawer path $login
		1547	or return;
		1548
		1549	my $pl = cf::player::load_pl $f
		1550	or return;
		1551
		1552	local $cf::PLAYER_LOADING{$login} = $pl;
		1553	$f->resolve_delayed_derefs;
		1554	$cf::PLAYER{$login} = $pl
		1555	}
		1556	}
		1557	}
		1558
1085	cf::player->attach (	1559	cf::player->attach (
1086	on_load => sub {	1560	on_load => sub {
1087	my ($pl, $path) = @_;	1561	my ($pl, $path) = @_;
1088		1562
1089	for my $o (all_objects $pl->ob) {	1563	# restore slots saved in save, below
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1564	my $slots = delete $pl->{_slots};
1091	$o->set_ob_key_value ("_perl_data");
1092		1565
1093	%$o = %{ Storable::thaw pack "H*", $value };	1566	$pl->ob->current_weapon ($slots->[0]);
1094	}	1567	$pl->combat_ob ($slots->[1]);
1095	}	1568	$pl->ranged_ob ($slots->[2]);
1096	},	1569	},
1097	);	1570	);
1098		1571
1099	#############################################################################	1572	sub save($) {
		1573	my ($pl) = @_;
1100		1574
1101	=head2 CORE EXTENSIONS	1575	return if $pl->{deny_save};
1102		1576
1103	Functions and methods that extend core crossfire objects.	1577	my $path = path $pl;
		1578	my $guard = cf::lock_acquire "user_save:$path";
1104		1579
1105	=head3 cf::player	1580	return if $pl->{deny_save};
		1581
		1582	aio_mkdir playerdir $pl, 0770;
		1583	$pl->{last_save} = $cf::RUNTIME;
		1584
		1585	cf::get_slot 0.01;
		1586
		1587	# save slots, to be restored later
		1588	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1589
		1590	$pl->save_pl ($path);
		1591	cf::cede_to_tick;
		1592	}
		1593
		1594	sub new($) {
		1595	my ($login) = @_;
		1596
		1597	my $self = create;
		1598
		1599	$self->ob->name ($login);
		1600	$self->{deny_save} = 1;
		1601
		1602	$cf::PLAYER{$login} = $self;
		1603
		1604	$self
		1605	}
		1606
		1607	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1608
		1609	=cut
		1610
		1611	sub send_msg {
		1612	my $ns = shift->ns
		1613	or return;
		1614	$ns->send_msg (@_);
		1615	}
		1616
		1617	=item $pl->quit_character
		1618
		1619	Nukes the player without looking back. If logged in, the connection will
		1620	be destroyed. May block for a long time.
		1621
		1622	=cut
		1623
		1624	sub quit_character {
		1625	my ($pl) = @_;
		1626
		1627	my $name = $pl->ob->name;
		1628
		1629	$pl->{deny_save} = 1;
		1630	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1631
		1632	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1633	$pl->deactivate;
		1634	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1635	$pl->ob->check_score;
		1636	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1637	$pl->ns->destroy if $pl->ns;
		1638
		1639	my $path = playerdir $pl;
		1640	my $temp = "$path~$cf::RUNTIME~deleting~";
		1641	aio_rename $path, $temp;
		1642	delete $cf::PLAYER{$pl->ob->name};
		1643	$pl->destroy;
		1644
		1645	my $prefix = qr<^~\Q$name\E/>;
		1646
		1647	# nuke player maps
		1648	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1649
		1650	IO::AIO::aio_rmtree $temp;
		1651	}
		1652
		1653	=item $pl->kick
		1654
		1655	Kicks a player out of the game. This destroys the connection.
		1656
		1657	=cut
		1658
		1659	sub kick {
		1660	my ($pl, $kicker) = @_;
		1661
		1662	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1663	$pl->killer ("kicked");
		1664	$pl->ns->destroy;
		1665	}
		1666
		1667	=item cf::player::list_logins
		1668
		1669	Returns am arrayref of all valid playernames in the system, can take a
		1670	while and may block, so not sync_job-capable, ever.
		1671
		1672	=cut
		1673
		1674	sub list_logins {
		1675	my $dirs = aio_readdir $PLAYERDIR
		1676	or return [];
		1677
		1678	my @logins;
		1679
		1680	for my $login (@$dirs) {
		1681	my $path = path $login;
		1682
		1683	# a .pst is a dead give-away for a valid player
		1684	# if no pst file found, open and chekc for blocked users
		1685	if (aio_stat "$path.pst") {
		1686	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1687	aio_read $fh, 0, 512, my $buf, 0 or next;
		1688	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1689	}
		1690
		1691	utf8::decode $login;
		1692	push @logins, $login;
		1693	}
		1694
		1695	\@logins
		1696	}
		1697
		1698	=item $player->maps
		1699
		1700	=item cf::player::maps $login
		1701
		1702	Returns an arrayref of map paths that are private for this
		1703	player. May block.
		1704
		1705	=cut
		1706
		1707	sub maps($) {
		1708	my ($pl) = @_;
		1709
		1710	$pl = ref $pl ? $pl->ob->name : $pl;
		1711
		1712	my $files = aio_readdir playerdir $pl
		1713	or return;
		1714
		1715	my @paths;
		1716
		1717	for (@$files) {
		1718	utf8::decode $_;
		1719	next if /\.(?:pl|pst)$/;
		1720	next unless /^$PATH_SEP/o;
		1721
		1722	push @paths, cf::map::normalise "~$pl/$_";
		1723	}
		1724
		1725	\@paths
		1726	}
		1727
		1728	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1729
		1730	Expand deliantra pod fragments into protocol xml.
		1731
		1732	=item $player->ext_reply ($msgid, @msg)
		1733
		1734	Sends an ext reply to the player.
		1735
		1736	=cut
		1737
		1738	sub ext_reply($$@) {
		1739	my ($self, $id, @msg) = @_;
		1740
		1741	$self->ns->ext_reply ($id, @msg)
		1742	}
		1743
		1744	=item $player->ext_msg ($type, @msg)
		1745
		1746	Sends an ext event to the client.
		1747
		1748	=cut
		1749
		1750	sub ext_msg($$@) {
		1751	my ($self, $type, @msg) = @_;
		1752
		1753	$self->ns->ext_msg ($type, @msg);
		1754	}
		1755
		1756	=head3 cf::region
1106		1757
1107	=over 4	1758	=over 4
1108		1759
1109	=item cf::player::exists $login
1110
1111	Returns true when the given account exists.
1112
1113	=cut	1760	=cut
1114		1761
1115	sub cf::player::exists($) {	1762	package cf::region;
1116	cf::player::find $_[0]
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1118	}
1119		1763
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)	1764	=item cf::region::find_by_path $path
1121		1765
1122	Sends an ext reply to the player.	1766	Tries to decuce the likely region for a map knowing only its path.
1123		1767
1124	=cut	1768	=cut
1125		1769
1126	sub cf::player::ext_reply($$$%) {	1770	sub find_by_path($) {
1127	my ($self, $id, %msg) = @_;	1771	my ($path) = @_;
1128		1772
1129	$msg{msgid} = $id;	1773	$path =~ s/^~[^\/]*//; # skip ~login
1130		1774
1131	$self->send ("ext " . to_json \%msg);	1775	my ($match, $specificity);
		1776
		1777	for my $region (list) {
		1778	if ($region->{match} && $path =~ $region->{match}) {
		1779	($match, $specificity) = ($region, $region->specificity)
		1780	if $region->specificity > $specificity;
		1781	}
		1782	}
		1783
		1784	$match
1132	}	1785	}
1133		1786
1134	=back	1787	=back
1135
1136		1788
1137	=head3 cf::map	1789	=head3 cf::map
1138		1790
1139	=over 4	1791	=over 4
1140		1792
…		…
1143	package cf::map;	1795	package cf::map;
1144		1796
1145	use Fcntl;	1797	use Fcntl;
1146	use Coro::AIO;	1798	use Coro::AIO;
1147		1799
		1800	use overload
		1801	'""' => \&as_string,
		1802	fallback => 1;
		1803
1148	our $MAX_RESET = 3600;	1804	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1805	our $DEFAULT_RESET = 3000;
1150		1806
1151	sub generate_random_map {	1807	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1808	my ($self, $rmp) = @_;
		1809
		1810	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1153		1811
1154	# mit "rum" bekleckern, nicht	1812	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1813	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1814	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1815	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1816	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1817	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1818	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1819	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1820	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1821	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1822	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1823	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1824	(cf::region::find $rmp->{region}), $rmp->{custom}
		1825	)
1168	}	1826	}
1169		1827
1170	# and all this just because we cannot iterate over	1828	=item cf::map->register ($regex, $prio)
1171	# all maps in C++...
1172	sub change_all_map_light {
1173	my ($change) = @_;
1174		1829
1175	$_->change_map_light ($change)	1830	Register a handler for the map path matching the given regex at the
1176	for grep $_->outdoor, values %cf::MAP;	1831	givne priority (higher is better, built-in handlers have priority 0, the
1177	}	1832	default).
1178		1833
1179	sub try_load_header($) {	1834	=cut
		1835
		1836	sub register {
		1837	my (undef, $regex, $prio) = @_;
		1838	my $pkg = caller;
		1839
		1840	no strict;
		1841	push @{"$pkg\::ISA"}, __PACKAGE__;
		1842
		1843	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1844	}
		1845
		1846	# also paths starting with '/'
		1847	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1848
		1849	sub thawer_merge {
		1850	my ($self, $merge) = @_;
		1851
		1852	# we have to keep some variables in memory intact
		1853	local $self->{path};
		1854	local $self->{load_path};
		1855
		1856	$self->SUPER::thawer_merge ($merge);
		1857	}
		1858
		1859	sub normalise {
1180	my ($path) = @_;	1860	my ($path, $base) = @_;
		1861
		1862	$path = "$path"; # make sure its a string
		1863
		1864	$path =~ s/\.map$//;
		1865
		1866	# map plan:
		1867	#
		1868	# /! non-realised random map exit (special hack!)
		1869	# {... are special paths that are not being touched
		1870	# ?xxx/... are special absolute paths
		1871	# ?random/... random maps
		1872	# /... normal maps
		1873	# ~user/... per-player map of a specific user
		1874
		1875	$path =~ s/$PATH_SEP/\//go;
		1876
		1877	# treat it as relative path if it starts with
		1878	# something that looks reasonable
		1879	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1880	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1881
		1882	$base =~ s{[^/]+/?$}{};
		1883	$path = "$base/$path";
		1884	}
		1885
		1886	for ($path) {
		1887	redo if s{//}{/};
		1888	redo if s{/\.?/}{/};
		1889	redo if s{/[^/]+/\.\./}{/};
		1890	}
		1891
		1892	$path
		1893	}
		1894
		1895	sub new_from_path {
		1896	my (undef, $path, $base) = @_;
		1897
		1898	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1899
		1900	$path = normalise $path, $base;
		1901
		1902	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1903	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1904	my $self = bless cf::map::new, $pkg;
		1905	$self->{path} = $path; $self->path ($path);
		1906	$self->init; # pass $1 etc.
		1907	return $self;
		1908	}
		1909	}
		1910
		1911	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1912	()
		1913	}
		1914
		1915	sub init {
		1916	my ($self) = @_;
		1917
		1918	$self
		1919	}
		1920
		1921	sub as_string {
		1922	my ($self) = @_;
		1923
		1924	"$self->{path}"
		1925	}
		1926
		1927	# the displayed name, this is a one way mapping
		1928	sub visible_name {
		1929	&as_string
		1930	}
		1931
		1932	# the original (read-only) location
		1933	sub load_path {
		1934	my ($self) = @_;
		1935
		1936	"$MAPDIR/$self->{path}.map"
		1937	}
		1938
		1939	# the temporary/swap location
		1940	sub save_path {
		1941	my ($self) = @_;
		1942
		1943	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1944	"$TMPDIR/$path.map"
		1945	}
		1946
		1947	# the unique path, undef == no special unique path
		1948	sub uniq_path {
		1949	my ($self) = @_;
		1950
		1951	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1952	"$UNIQUEDIR/$path"
		1953	}
		1954
		1955	sub decay_objects {
		1956	my ($self) = @_;
		1957
		1958	return if $self->{deny_reset};
		1959
		1960	$self->do_decay_objects;
		1961	}
		1962
		1963	sub unlink_save {
		1964	my ($self) = @_;
		1965
		1966	utf8::encode (my $save = $self->save_path);
		1967	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1968	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1969	}
		1970
		1971	sub load_header_from($) {
		1972	my ($self, $path) = @_;
1181		1973
1182	utf8::encode $path;	1974	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1975	my $f = new_from_file cf::object::thawer $path
1184	or return;	1976	or return;
1185		1977
1186	my $map = cf::map::new	1978	$self->_load_header ($f)
1187	or return;	1979	or return;
1188		1980
1189	$map->load_header ($path)	1981	local $MAP_LOADING{$self->{path}} = $self;
		1982	$f->resolve_delayed_derefs;
		1983
		1984	$self->{load_path} = $path;
		1985
		1986	1
		1987	}
		1988
		1989	sub load_header_orig {
		1990	my ($self) = @_;
		1991
		1992	$self->load_header_from ($self->load_path)
		1993	}
		1994
		1995	sub load_header_temp {
		1996	my ($self) = @_;
		1997
		1998	$self->load_header_from ($self->save_path)
		1999	}
		2000
		2001	sub prepare_temp {
		2002	my ($self) = @_;
		2003
		2004	$self->last_access ((delete $self->{last_access})
		2005	|| $cf::RUNTIME); #d#
		2006	# safety
		2007	$self->{instantiate_time} = $cf::RUNTIME
		2008	if $self->{instantiate_time} > $cf::RUNTIME;
		2009	}
		2010
		2011	sub prepare_orig {
		2012	my ($self) = @_;
		2013
		2014	$self->{load_original} = 1;
		2015	$self->{instantiate_time} = $cf::RUNTIME;
		2016	$self->last_access ($cf::RUNTIME);
		2017	$self->instantiate;
		2018	}
		2019
		2020	sub load_header {
		2021	my ($self) = @_;
		2022
		2023	if ($self->load_header_temp) {
		2024	$self->prepare_temp;
		2025	} else {
		2026	$self->load_header_orig
1190	or return;	2027	or return;
		2028	$self->prepare_orig;
		2029	}
1191		2030
1192	$map->{load_path} = $path;	2031	$self->{deny_reset} = 1
		2032	if $self->no_reset;
1193		2033
1194	$map	2034	$self->default_region (cf::region::find_by_path $self->{path})
		2035	unless $self->default_region;
		2036
		2037	1
1195	}	2038	}
1196		2039
1197	sub find;	2040	sub find;
1198	sub find {	2041	sub find {
1199	my ($path, $origin) = @_;	2042	my ($path, $origin) = @_;
1200		2043
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	2044	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		2045
1206	cf::lock_wait "map_find:$key";	2046	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1207
1208	$cf::MAP{$key} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	2047	my $guard2 = cf::lock_acquire "map_find:$path";
1210		2048
1211	# do it the slow way	2049	$cf::MAP{$path} || do {
1212	my $map = try_load_header $path->save_path;	2050	my $map = new_from_path cf::map $path
1213
1214	if ($map) {
1215	$map->last_access ((delete $map->{last_access})
1216	|| $cf::RUNTIME); #d#
1217	# safety
1218	$map->{instantiate_time} = $cf::RUNTIME
1219	if $map->{instantiate_time} > $cf::RUNTIME;
1220	} else {
1221	if (my $rmp = $path->random_map_params) {
1222	$map = generate_random_map $key, $rmp;
1223	} else {
1224	$map = try_load_header $path->load_path;
1225	}
1226
1227	$map or return;	2051	or return;
1228		2052
1229	$map->{load_original} = 1;
1230	$map->{instantiate_time} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232	$map->instantiate;
1233
1234	# per-player maps become, after loading, normal maps
1235	$map->per_player (0) if $path->{user_rel};
1236	}
1237
1238	$map->path ($key);
1239	$map->{path} = $path;
1240	$map->{last_save} = $cf::RUNTIME;	2053	$map->{last_save} = $cf::RUNTIME;
1241		2054
1242	if ($map->should_reset) {	2055	$map->load_header
		2056	or return;
		2057
		2058	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2059	# doing this can freeze the server in a sync job, obviously
		2060	#$cf::WAIT_FOR_TICK->wait;
		2061	undef $guard2;
		2062	undef $guard1;
1243	$map->reset;	2063	$map->reset;
1244	undef $guard;
1245	$map = find $path	2064	return find $path;
1246	or return;
1247	}	2065	}
1248		2066
1249	$cf::MAP{$key} = $map	2067	$cf::MAP{$path} = $map
1250	}	2068	}
1251	}	2069	}
		2070
		2071	sub pre_load { }
		2072	#sub post_load { } # XS
1252		2073
1253	sub load {	2074	sub load {
1254	my ($self) = @_;	2075	my ($self) = @_;
1255		2076
		2077	local $self->{deny_reset} = 1; # loading can take a long time
		2078
1256	my $path = $self->{path};	2079	my $path = $self->{path};
		2080
		2081	{
1257	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2082	my $guard = cf::lock_acquire "map_data:$path";
1258		2083
		2084	return unless $self->valid;
1259	return if $self->in_memory != cf::MAP_SWAPPED;	2085	return unless $self->in_memory == cf::MAP_SWAPPED;
1260		2086
1261	$self->in_memory (cf::MAP_LOADING);	2087	$self->in_memory (cf::MAP_LOADING);
1262		2088
1263	$self->alloc;	2089	$self->alloc;
1264	$self->load_objects ($self->{load_path}, 1)	2090
		2091	$self->pre_load;
		2092	cf::cede_to_tick;
		2093
		2094	my $f = new_from_file cf::object::thawer $self->{load_path};
		2095	$f->skip_block;
		2096	$self->_load_objects ($f)
1265	or return;	2097	or return;
1266		2098
1267	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2099	$self->post_load_original
1268	if delete $self->{load_original};	2100	if delete $self->{load_original};
1269		2101
1270	if (my $uniq = $path->uniq_path) {	2102	if (my $uniq = $self->uniq_path) {
1271	utf8::encode $uniq;	2103	utf8::encode $uniq;
1272	if (aio_open $uniq, O_RDONLY, 0) {	2104	unless (aio_stat $uniq) {
		2105	if (my $f = new_from_file cf::object::thawer $uniq) {
1273	$self->clear_unique_items;	2106	$self->clear_unique_items;
1274	$self->load_objects ($uniq, 0);	2107	$self->_load_objects ($f);
		2108	$f->resolve_delayed_derefs;
		2109	}
1275	}	2110	}
1276	}	2111	}
1277		2112
		2113	$f->resolve_delayed_derefs;
		2114
		2115	cf::cede_to_tick;
1278	# now do the right thing for maps	2116	# now do the right thing for maps
1279	$self->link_multipart_objects;	2117	$self->link_multipart_objects;
1280
1281	if ($self->{path}->is_style_map) {
1282	$self->{deny_save} = 1;
1283	$self->{deny_reset} = 1;
1284	} else {
1285	$self->fix_auto_apply;
1286	$self->decay_objects;
1287	$self->update_buttons;
1288	$self->set_darkness_map;
1289	$self->difficulty ($self->estimate_difficulty)	2118	$self->difficulty ($self->estimate_difficulty)
1290	unless $self->difficulty;	2119	unless $self->difficulty;
		2120	cf::cede_to_tick;
		2121
		2122	unless ($self->{deny_activate}) {
		2123	$self->decay_objects;
		2124	$self->fix_auto_apply;
		2125	$self->update_buttons;
		2126	cf::cede_to_tick;
1291	$self->activate;	2127	$self->activate;
1292	}	2128	}
1293		2129
		2130	$self->{last_save} = $cf::RUNTIME;
		2131	$self->last_access ($cf::RUNTIME);
		2132
1294	$self->in_memory (cf::MAP_IN_MEMORY);	2133	$self->in_memory (cf::MAP_ACTIVE);
		2134	}
		2135
		2136	$self->post_load;
		2137	}
		2138
		2139	# customize the map for a given player, i.e.
		2140	# return the _real_ map. used by e.g. per-player
		2141	# maps to change the path to ~playername/mappath
		2142	sub customise_for {
		2143	my ($self, $ob) = @_;
		2144
		2145	return find "~" . $ob->name . "/" . $self->{path}
		2146	if $self->per_player;
		2147
		2148	# return find "?party/" . $ob->name . "/" . $self->{path}
		2149	# if $self->per_party;
		2150
		2151	$self
		2152	}
		2153
		2154	# find and load all maps in the 3x3 area around a map
		2155	sub load_neighbours {
		2156	my ($map) = @_;
		2157
		2158	my @neigh; # diagonal neighbours
		2159
		2160	for (0 .. 3) {
		2161	my $neigh = $map->tile_path ($_)
		2162	or next;
		2163	$neigh = find $neigh, $map
		2164	or next;
		2165	$neigh->load;
		2166
		2167	push @neigh,
		2168	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2169	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2170	}
		2171
		2172	for (grep defined $_->[0], @neigh) {
		2173	my ($path, $origin) = @$_;
		2174	my $neigh = find $path, $origin
		2175	or next;
		2176	$neigh->load;
		2177	}
1295	}	2178	}
1296		2179
1297	sub find_sync {	2180	sub find_sync {
1298	my ($path, $origin) = @_;	2181	my ($path, $origin) = @_;
1299		2182
1300	cf::sync_job { cf::map::find $path, $origin }	2183	cf::sync_job { find $path, $origin }
1301	}	2184	}
1302		2185
1303	sub do_load_sync {	2186	sub do_load_sync {
1304	my ($map) = @_;	2187	my ($map) = @_;
1305		2188
		2189	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2190	if $Coro::current == $Coro::main;
		2191
1306	cf::sync_job { $map->load };	2192	cf::sync_job { $map->load };
		2193	}
		2194
		2195	our %MAP_PREFETCH;
		2196	our $MAP_PREFETCHER = undef;
		2197
		2198	sub find_async {
		2199	my ($path, $origin, $load) = @_;
		2200
		2201	$path = normalise $path, $origin && $origin->{path};
		2202
		2203	if (my $map = $cf::MAP{$path}) {
		2204	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2205	}
		2206
		2207	$MAP_PREFETCH{$path} |= $load;
		2208
		2209	$MAP_PREFETCHER ||= cf::async {
		2210	$Coro::current->{desc} = "map prefetcher";
		2211
		2212	while (%MAP_PREFETCH) {
		2213	while (my ($k, $v) = each %MAP_PREFETCH) {
		2214	if (my $map = find $k) {
		2215	$map->load if $v;
		2216	}
		2217
		2218	delete $MAP_PREFETCH{$k};
		2219	}
		2220	}
		2221	undef $MAP_PREFETCHER;
		2222	};
		2223	$MAP_PREFETCHER->prio (6);
		2224
		2225	()
		2226	}
		2227
		2228	# common code, used by both ->save and ->swapout
		2229	sub _save {
		2230	my ($self) = @_;
		2231
		2232	$self->{last_save} = $cf::RUNTIME;
		2233
		2234	return unless $self->dirty;
		2235
		2236	my $save = $self->save_path; utf8::encode $save;
		2237	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2238
		2239	$self->{load_path} = $save;
		2240
		2241	return if $self->{deny_save};
		2242
		2243	local $self->{last_access} = $self->last_access;#d#
		2244
		2245	cf::async {
		2246	$Coro::current->{desc} = "map player save";
		2247	$_->contr->save for $self->players;
		2248	};
		2249
		2250	cf::get_slot 0.02;
		2251
		2252	if ($uniq) {
		2253	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2254	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2255	} else {
		2256	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2257	}
1307	}	2258	}
1308		2259
1309	sub save {	2260	sub save {
1310	my ($self) = @_;	2261	my ($self) = @_;
1311		2262
1312	$self->{last_save} = $cf::RUNTIME;	2263	my $lock = cf::lock_acquire "map_data:$self->{path}";
1313		2264
1314	return unless $self->dirty;	2265	$self->_save;
1315
1316	my $save = $self->{path}->save_path; utf8::encode $save;
1317	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1318
1319	$self->{load_path} = $save;
1320
1321	return if $self->{deny_save};
1322
1323	local $self->{last_access} = $self->last_access;#d#
1324
1325	if ($uniq) {
1326	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1327	$self->save_objects ($uniq, cf::IO_UNIQUES);
1328	} else {
1329	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1330	}
1331	}	2266	}
1332		2267
1333	sub swap_out {	2268	sub swap_out {
1334	my ($self) = @_;	2269	my ($self) = @_;
1335		2270
1336	# save first because save cedes	2271	my $lock = cf::lock_acquire "map_data:$self->{path}";
1337	$self->save;
1338		2272
		2273	return if $self->in_memory != cf::MAP_ACTIVE;
		2274	return if $self->{deny_save};
1339	return if $self->players;	2275	return if $self->players;
1340	return if $self->in_memory != cf::MAP_IN_MEMORY;
1341	return if $self->{deny_save};
1342		2276
		2277	# first deactivate the map and "unlink" it from the core
		2278	$self->deactivate;
		2279	$_->clear_links_to ($self) for values %cf::MAP;
		2280	$self->in_memory (cf::MAP_SWAPPED);
		2281
		2282	# then atomically save
		2283	$self->_save;
		2284
		2285	# then free the map
1343	$self->clear;	2286	$self->clear;
1344	$self->in_memory (cf::MAP_SWAPPED);
1345	}	2287	}
1346		2288
1347	sub reset_at {	2289	sub reset_at {
1348	my ($self) = @_;	2290	my ($self) = @_;
1349		2291
1350	# TODO: safety, remove and allow resettable per-player maps	2292	# TODO: safety, remove and allow resettable per-player maps
1351	return 1e99 if $self->{path}{user_rel};
1352	return 1e99 if $self->{deny_reset};	2293	return 1e99 if $self->{deny_reset};
1353		2294
1354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2295	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2296	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1356		2297
…		…
1361	my ($self) = @_;	2302	my ($self) = @_;
1362		2303
1363	$self->reset_at <= $cf::RUNTIME	2304	$self->reset_at <= $cf::RUNTIME
1364	}	2305	}
1365		2306
1366	sub unlink_save {
1367	my ($self) = @_;
1368
1369	utf8::encode (my $save = $self->{path}->save_path);
1370	aioreq_pri 3; IO::AIO::aio_unlink $save;
1371	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1372	}
1373
1374	sub rename {
1375	my ($self, $new_path) = @_;
1376
1377	$self->unlink_save;
1378
1379	delete $cf::MAP{$self->path};
1380	$self->{path} = new cf::path $new_path;
1381	$self->path ($self->{path}->as_string);
1382	$cf::MAP{$self->path} = $self;
1383
1384	$self->save;
1385	}
1386
1387	sub reset {	2307	sub reset {
1388	my ($self) = @_;	2308	my ($self) = @_;
1389		2309
		2310	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2311
1390	return if $self->players;	2312	return if $self->players;
1391	return if $self->{path}{user_rel};#d#
1392		2313
1393	warn "resetting map ", $self->path;#d#	2314	warn "resetting map ", $self->path, "\n";
		2315
		2316	$self->in_memory (cf::MAP_SWAPPED);
		2317
		2318	# need to save uniques path
		2319	unless ($self->{deny_save}) {
		2320	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2321
		2322	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2323	if $uniq;
		2324	}
1394		2325
1395	delete $cf::MAP{$self->path};	2326	delete $cf::MAP{$self->path};
1396		2327
		2328	$self->deactivate;
1397	$_->clear_links_to ($self) for values %cf::MAP;	2329	$_->clear_links_to ($self) for values %cf::MAP;
		2330	$self->clear;
1398		2331
1399	$self->unlink_save;	2332	$self->unlink_save;
1400	$self->destroy;	2333	$self->destroy;
1401	}	2334	}
1402		2335
1403	my $nuke_counter = "aaaa";	2336	my $nuke_counter = "aaaa";
1404		2337
1405	sub nuke {	2338	sub nuke {
1406	my ($self) = @_;	2339	my ($self) = @_;
1407		2340
		2341	{
		2342	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2343
		2344	delete $cf::MAP{$self->path};
		2345
		2346	$self->unlink_save;
		2347
		2348	bless $self, "cf::map::wrap";
		2349	delete $self->{deny_reset};
1408	$self->{deny_save} = 1;	2350	$self->{deny_save} = 1;
1409	$self->reset_timeout (1);	2351	$self->reset_timeout (1);
1410	$self->rename ("{nuke}/" . ($nuke_counter++));	2352	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2353
		2354	$cf::MAP{$self->path} = $self;
		2355	}
		2356
1411	$self->reset; # polite request, might not happen	2357	$self->reset; # polite request, might not happen
1412	}	2358	}
1413		2359
1414	sub customise_for {	2360	=item $maps = cf::map::tmp_maps
1415	my ($map, $ob) = @_;
1416		2361
1417	if ($map->per_player) {	2362	Returns an arrayref with all map paths of currently instantiated and saved
1418	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2363	maps. May block.
		2364
		2365	=cut
		2366
		2367	sub tmp_maps() {
1419	}	2368	[
1420		2369	map {
1421	$map	2370	utf8::decode $_;
		2371	/\.map$/
		2372	? normalise $_
		2373	: ()
		2374	} @{ aio_readdir $TMPDIR or [] }
		2375	]
1422	}	2376	}
1423		2377
1424	sub emergency_save {	2378	=item $maps = cf::map::random_maps
1425	my $freeze_guard = cf::freeze_mainloop;
1426		2379
1427	warn "enter emergency map save\n";	2380	Returns an arrayref with all map paths of currently instantiated and saved
		2381	random maps. May block.
1428		2382
1429	cf::sync_job {	2383	=cut
1430	warn "begin emergency map save\n";	2384
1431	$_->save for values %cf::MAP;	2385	sub random_maps() {
		2386	[
		2387	map {
		2388	utf8::decode $_;
		2389	/\.map$/
		2390	? normalise "?random/$_"
		2391	: ()
		2392	} @{ aio_readdir $RANDOMDIR or [] }
		2393	]
		2394	}
		2395
		2396	=item cf::map::unique_maps
		2397
		2398	Returns an arrayref of paths of all shared maps that have
		2399	instantiated unique items. May block.
		2400
		2401	=cut
		2402
		2403	sub unique_maps() {
		2404	[
		2405	map {
		2406	utf8::decode $_;
		2407	s/\.map$//; # TODO future compatibility hack
		2408	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2409	? ()
		2410	: normalise $_
		2411	} @{ aio_readdir $UNIQUEDIR or [] }
		2412	]
		2413	}
		2414
		2415	=item cf::map::static_maps
		2416
		2417	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2418	file in the shared directory excluding F</styles> and F</editor>). May
		2419	block.
		2420
		2421	=cut
		2422
		2423	sub static_maps() {
		2424	my @dirs = "";
		2425	my @maps;
		2426
		2427	while (@dirs) {
		2428	my $dir = shift @dirs;
		2429
		2430	next if $dir eq "/styles" || $dir eq "/editor";
		2431
		2432	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2433	or return;
		2434
		2435	for (@$files) {
		2436	s/\.map$// or next;
		2437	utf8::decode $_;
		2438	push @maps, "$dir/$_";
		2439	}
		2440
		2441	push @dirs, map "$dir/$_", @$dirs;
1432	};	2442	}
1433		2443
1434	warn "end emergency map save\n";	2444	\@maps
		2445	}
		2446
		2447	=back
		2448
		2449	=head3 cf::object
		2450
		2451	=cut
		2452
		2453	package cf::object;
		2454
		2455	=over 4
		2456
		2457	=item $ob->inv_recursive
		2458
		2459	Returns the inventory of the object I<and> their inventories, recursively,
		2460	but I<not> the object itself.
		2461
		2462	=cut
		2463
		2464	sub inv_recursive_;
		2465	sub inv_recursive_ {
		2466	map { $_, inv_recursive_ $_->inv } @_
		2467	}
		2468
		2469	sub inv_recursive {
		2470	inv_recursive_ inv $_[0]
		2471	}
		2472
		2473	=item $ref = $ob->ref
		2474
		2475	Creates and returns a persistent reference to an object that can be stored as a string.
		2476
		2477	=item $ob = cf::object::deref ($refstring)
		2478
		2479	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2480	even if the object actually exists. May block.
		2481
		2482	=cut
		2483
		2484	sub deref {
		2485	my ($ref) = @_;
		2486
		2487	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2488	my ($uuid, $name) = ($1, $2);
		2489	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2490	or return;
		2491	$pl->ob->uuid eq $uuid
		2492	or return;
		2493
		2494	$pl->ob
		2495	} else {
		2496	warn "$ref: cannot resolve object reference\n";
		2497	undef
		2498	}
1435	}	2499	}
1436		2500
1437	package cf;	2501	package cf;
1438		2502
1439	=back	2503	=back
1440
1441		2504
1442	=head3 cf::object::player	2505	=head3 cf::object::player
1443		2506
1444	=over 4	2507	=over 4
1445		2508
…		…
1448	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2511	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1449	can be C<undef>. Does the right thing when the player is currently in a	2512	can be C<undef>. Does the right thing when the player is currently in a
1450	dialogue with the given NPC character.	2513	dialogue with the given NPC character.
1451		2514
1452	=cut	2515	=cut
		2516
		2517	our $SAY_CHANNEL = {
		2518	id => "say",
		2519	title => "Map",
		2520	reply => "say ",
		2521	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2522	};
		2523
		2524	our $CHAT_CHANNEL = {
		2525	id => "chat",
		2526	title => "Chat",
		2527	reply => "chat ",
		2528	tooltip => "Player chat and shouts, global to the server.",
		2529	};
1453		2530
1454	# rough implementation of a future "reply" method that works	2531	# rough implementation of a future "reply" method that works
1455	# with dialog boxes.	2532	# with dialog boxes.
1456	#TODO: the first argument must go, split into a $npc->reply_to ( method	2533	#TODO: the first argument must go, split into a $npc->reply_to ( method
1457	sub cf::object::player::reply($$$;$) {	2534	sub cf::object::player::reply($$$;$) {
…		…
1459		2536
1460	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2537	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1461		2538
1462	if ($self->{record_replies}) {	2539	if ($self->{record_replies}) {
1463	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2540	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2541
1464	} else {	2542	} else {
		2543	my $pl = $self->contr;
		2544
		2545	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2546	my $dialog = $pl->{npc_dialog};
		2547	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2548
		2549	} else {
1465	$msg = $npc->name . " says: $msg" if $npc;	2550	$msg = $npc->name . " says: $msg" if $npc;
1466	$self->message ($msg, $flags);	2551	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2552	}
1467	}	2553	}
		2554	}
		2555
		2556	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2557
		2558	=cut
		2559
		2560	sub cf::object::send_msg {
		2561	my $pl = shift->contr
		2562	or return;
		2563	$pl->send_msg (@_);
1468	}	2564	}
1469		2565
1470	=item $player_object->may ("access")	2566	=item $player_object->may ("access")
1471		2567
1472	Returns wether the given player is authorized to access resource "access"	2568	Returns wether the given player is authorized to access resource "access"
…		…
1485		2581
1486	=item $player_object->enter_link	2582	=item $player_object->enter_link
1487		2583
1488	Freezes the player and moves him/her to a special map (C<{link}>).	2584	Freezes the player and moves him/her to a special map (C<{link}>).
1489		2585
1490	The player should be reaosnably safe there for short amounts of time. You	2586	The player should be reasonably safe there for short amounts of time (e.g.
1491	I<MUST> call C<leave_link> as soon as possible, though.	2587	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2588	though, as the palyer cannot control the character while it is on the link
		2589	map.
		2590
		2591	Will never block.
1492		2592
1493	=item $player_object->leave_link ($map, $x, $y)	2593	=item $player_object->leave_link ($map, $x, $y)
1494		2594
1495	Moves the player out of the specila link map onto the given map. If the	2595	Moves the player out of the special C<{link}> map onto the specified
1496	map is not valid (or omitted), the player will be moved back to the	2596	map. If the map is not valid (or omitted), the player will be moved back
1497	location he/she was before the call to C<enter_link>, or, if that fails,	2597	to the location he/she was before the call to C<enter_link>, or, if that
1498	to the emergency map position.	2598	fails, to the emergency map position.
1499		2599
1500	Might block.	2600	Might block.
1501		2601
1502	=cut	2602	=cut
		2603
		2604	sub link_map {
		2605	unless ($LINK_MAP) {
		2606	$LINK_MAP = cf::map::find "{link}"
		2607	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2608	$LINK_MAP->load;
		2609	}
		2610
		2611	$LINK_MAP
		2612	}
1503		2613
1504	sub cf::object::player::enter_link {	2614	sub cf::object::player::enter_link {
1505	my ($self) = @_;	2615	my ($self) = @_;
1506		2616
1507	$self->deactivate_recursive;	2617	$self->deactivate_recursive;
1508		2618
1509	return if $self->map == $LINK_MAP;	2619	return if UNIVERSAL::isa $self->map, "ext::map_link";
1510		2620
1511	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2621	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1512	if $self->map;	2622	if $self->map && $self->map->{path} ne "{link}";
1513		2623
1514	$self->enter_map ($LINK_MAP, 20, 20);	2624	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1515	}	2625	}
1516		2626
1517	sub cf::object::player::leave_link {	2627	sub cf::object::player::leave_link {
1518	my ($self, $map, $x, $y) = @_;	2628	my ($self, $map, $x, $y) = @_;
		2629
		2630	return unless $self->contr->active;
1519		2631
1520	my $link_pos = delete $self->{_link_pos};	2632	my $link_pos = delete $self->{_link_pos};
1521		2633
1522	unless ($map) {	2634	unless ($map) {
1523	# restore original map position	2635	# restore original map position
…		…
1534	($x, $y) = (-1, -1)	2646	($x, $y) = (-1, -1)
1535	unless (defined $x) && (defined $y);	2647	unless (defined $x) && (defined $y);
1536		2648
1537	# use -1 or undef as default coordinates, not 0, 0	2649	# use -1 or undef as default coordinates, not 0, 0
1538	($x, $y) = ($map->enter_x, $map->enter_y)	2650	($x, $y) = ($map->enter_x, $map->enter_y)
1539	if $x <=0 && $y <= 0;	2651	if $x <= 0 && $y <= 0;
1540		2652
1541	$map->load;	2653	$map->load;
		2654	$map->load_neighbours;
1542		2655
		2656	return unless $self->contr->active;
		2657
		2658	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2659	$self->enter_map ($map, $x, $y);
		2660
		2661	# only activate afterwards, to support waiting in hooks
1543	$self->activate_recursive;	2662	$self->activate_recursive;
1544	$self->enter_map ($map, $x, $y);
1545	}	2663	}
1546		2664
1547	cf::player->attach (	2665	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1548	on_logout => sub {
1549	my ($pl) = @_;
1550		2666
1551	# abort map switching before logout	2667	Moves the player to the given map-path and coordinates by first freezing
1552	if ($pl->ob->{_link_pos}) {	2668	her, loading and preparing them map, calling the provided $check callback
1553	cf::sync_job {	2669	that has to return the map if sucecssful, and then unfreezes the player on
1554	$pl->ob->leave_link	2670	the new (success) or old (failed) map position. In either case, $done will
1555	};	2671	be called at the end of this process.
1556	}
1557	},
1558	on_login => sub {
1559	my ($pl) = @_;
1560		2672
1561	# try to abort aborted map switching on player login :)	2673	Note that $check will be called with a potentially non-loaded map, so if
1562	# should happen only on crashes	2674	it needs a loaded map it has to call C<< ->load >>.
1563	if ($pl->ob->{_link_pos}) {
1564	$pl->ob->enter_link;
1565	cf::async {
1566	# we need this sleep as the login has a concurrent enter_exit running
1567	# and this sleep increases chances of the player not ending up in scorn
1568	Coro::Timer::sleep 1;
1569	$pl->ob->leave_link;
1570	};
1571	}
1572	},
1573	);
1574		2675
1575	=item $player_object->goto_map ($path, $x, $y)
1576
1577	=cut	2676	=cut
1578		2677
		2678	our $GOTOGEN;
		2679
1579	sub cf::object::player::goto_map {	2680	sub cf::object::player::goto {
1580	my ($self, $path, $x, $y) = @_;	2681	my ($self, $path, $x, $y, $check, $done) = @_;
		2682
		2683	# do generation counting so two concurrent goto's will be executed in-order
		2684	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1581		2685
1582	$self->enter_link;	2686	$self->enter_link;
1583		2687
1584	(cf::async {	2688	(async {
1585	$path = new cf::path $path;	2689	$Coro::current->{desc} = "player::goto $path $x $y";
1586		2690
1587	my $map = cf::map::find $path->as_string;	2691	# *tag paths override both path and x|y
		2692	if ($path =~ /^\*(.*)$/) {
		2693	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2694	my $ob = $obs[rand @obs];
		2695
		2696	# see if we actually can go there
		2697	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2698	$ob = $obs[rand @obs];
		2699	} else {
		2700	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2701	}
		2702	# else put us there anyways for now #d#
		2703
		2704	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2705	} else {
		2706	($path, $x, $y) = (undef, undef, undef);
		2707	}
		2708	}
		2709
		2710	my $map = eval {
		2711	my $map = defined $path ? cf::map::find $path : undef;
		2712
		2713	if ($map) {
1588	$map = $map->customise_for ($self) if $map;	2714	$map = $map->customise_for ($self);
1589		2715	$map = $check->($map) if $check && $map;
1590	# warn "entering ", $map->path, " at ($x, $y)\n"	2716	} else {
1591	# if $map;
1592
1593	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2717	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2718	}
1594		2719
		2720	$map
		2721	};
		2722
		2723	if ($@) {
		2724	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2725	LOG llevError | logBacktrace, Carp::longmess $@;
		2726	}
		2727
		2728	if ($gen == $self->{_goto_generation}) {
		2729	delete $self->{_goto_generation};
1595	$self->leave_link ($map, $x, $y);	2730	$self->leave_link ($map, $x, $y);
		2731	}
		2732
		2733	$done->() if $done;
1596	})->prio (1);	2734	})->prio (1);
1597	}	2735	}
1598		2736
1599	=item $player_object->enter_exit ($exit_object)	2737	=item $player_object->enter_exit ($exit_object)
1600		2738
…		…
1602		2740
1603	sub parse_random_map_params {	2741	sub parse_random_map_params {
1604	my ($spec) = @_;	2742	my ($spec) = @_;
1605		2743
1606	my $rmp = { # defaults	2744	my $rmp = { # defaults
1607	xsize => 10,	2745	xsize => (cf::rndm 15, 40),
1608	ysize => 10,	2746	ysize => (cf::rndm 15, 40),
		2747	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2748	#layout => string,
1609	};	2749	};
1610		2750
1611	for (split /\n/, $spec) {	2751	for (split /\n/, $spec) {
1612	my ($k, $v) = split /\s+/, $_, 2;	2752	my ($k, $v) = split /\s+/, $_, 2;
1613		2753
…		…
1625	# that depends on the exit object	2765	# that depends on the exit object
1626		2766
1627	my $rmp = parse_random_map_params $exit->msg;	2767	my $rmp = parse_random_map_params $exit->msg;
1628		2768
1629	if ($exit->map) {	2769	if ($exit->map) {
1630	$rmp->{region} = $exit->map->region_name;	2770	$rmp->{region} = $exit->region->name;
1631	$rmp->{origin_map} = $exit->map->path;	2771	$rmp->{origin_map} = $exit->map->path;
1632	$rmp->{origin_x} = $exit->x;	2772	$rmp->{origin_x} = $exit->x;
1633	$rmp->{origin_y} = $exit->y;	2773	$rmp->{origin_y} = $exit->y;
		2774
		2775	$exit->map->touch;
1634	}	2776	}
1635		2777
1636	$rmp->{random_seed} ||= $exit->random_seed;	2778	$rmp->{random_seed} ||= $exit->random_seed;
1637		2779
1638	my $data = cf::to_json $rmp;	2780	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1639	my $md5 = Digest::MD5::md5_hex $data;	2781	my $md5 = Digest::MD5::md5_hex $data;
		2782	my $meta = "$RANDOMDIR/$md5.meta";
1640		2783
1641	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2784	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1642	aio_write $fh, 0, (length $data), $data, 0;	2785	aio_write $fh, 0, (length $data), $data, 0;
		2786	undef $fh;
		2787	aio_rename "$meta~", $meta;
1643		2788
		2789	my $slaying = "?random/$md5";
		2790
		2791	if ($exit->valid) {
1644	$exit->slaying ("?random/$md5");	2792	$exit->slaying ("?random/$md5");
1645	$exit->msg (undef);	2793	$exit->msg (undef);
		2794	}
1646	}	2795	}
1647	}	2796	}
1648		2797
1649	sub cf::object::player::enter_exit {	2798	sub cf::object::player::enter_exit {
1650	my ($self, $exit) = @_;	2799	my ($self, $exit) = @_;
1651		2800
1652	return unless $self->type == cf::PLAYER;	2801	return unless $self->type == cf::PLAYER;
1653		2802
1654	$self->enter_link;	2803	$self->enter_link;
1655		2804
1656	(cf::async {	2805	(async {
1657	$self->deactivate_recursive; # just to be sure	2806	$Coro::current->{desc} = "enter_exit";
		2807
1658	unless (eval {	2808	unless (eval {
		2809	$self->deactivate_recursive; # just to be sure
		2810
		2811	# random map handling
		2812	{
		2813	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2814
1659	prepare_random_map $exit	2815	prepare_random_map $exit
1660	if $exit->slaying eq "/!";	2816	if $exit->slaying eq "/!";
		2817	}
1661		2818
1662	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2819	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1663	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2820	my $x = $exit->stats->hp;
		2821	my $y = $exit->stats->sp;
1664		2822
		2823	$self->goto ($map, $x, $y);
		2824
		2825	# if exit is damned, update players death & WoR home-position
		2826	$self->contr->savebed ($map, $x, $y)
		2827	if $exit->flag (cf::FLAG_DAMNED);
		2828
1665	1;	2829	1
1666	}) {	2830	}) {
1667	$self->message ("Something went wrong deep within the crossfire server. "	2831	$self->message ("Something went wrong deep within the deliantra server. "
1668	. "I'll try to bring you back to the map you were before. "	2832	. "I'll try to bring you back to the map you were before. "
1669	. "Please report this to the dungeon master",	2833	. "Please report this to the dungeon master!",
1670	cf::NDI_UNIQUE | cf::NDI_RED);	2834	cf::NDI_UNIQUE | cf::NDI_RED);
1671		2835
1672	warn "ERROR in enter_exit: $@";	2836	warn "ERROR in enter_exit: $@";
1673	$self->leave_link;	2837	$self->leave_link;
1674	}	2838	}
1675	})->prio (1);	2839	})->prio (1);
…		…
1688		2852
1689	sub cf::client::send_drawinfo {	2853	sub cf::client::send_drawinfo {
1690	my ($self, $text, $flags) = @_;	2854	my ($self, $text, $flags) = @_;
1691		2855
1692	utf8::encode $text;	2856	utf8::encode $text;
1693	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2857	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1694	}	2858	}
1695		2859
		2860	=item $client->send_big_packet ($pkt)
		2861
		2862	Like C<send_packet>, but tries to compress large packets, and fragments
		2863	them as required.
		2864
		2865	=cut
		2866
		2867	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2868
		2869	sub cf::client::send_big_packet {
		2870	my ($self, $pkt) = @_;
		2871
		2872	# try lzf for large packets
		2873	$pkt = "lzf " . Compress::LZF::compress $pkt
		2874	if 1024 <= length $pkt and $self->{can_lzf};
		2875
		2876	# split very large packets
		2877	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2878	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2879	$pkt = "frag";
		2880	}
		2881
		2882	$self->send_packet ($pkt);
		2883	}
		2884
		2885	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2886
		2887	Send a drawinfo or msg packet to the client, formatting the msg for the
		2888	client if neccessary. C<$type> should be a string identifying the type of
		2889	the message, with C<log> being the default. If C<$color> is negative, suppress
		2890	the message unless the client supports the msg packet.
		2891
		2892	=cut
		2893
		2894	# non-persistent channels (usually the info channel)
		2895	our %CHANNEL = (
		2896	"c/motd" => {
		2897	id => "infobox",
		2898	title => "MOTD",
		2899	reply => undef,
		2900	tooltip => "The message of the day",
		2901	},
		2902	"c/identify" => {
		2903	id => "infobox",
		2904	title => "Identify",
		2905	reply => undef,
		2906	tooltip => "Items recently identified",
		2907	},
		2908	"c/examine" => {
		2909	id => "infobox",
		2910	title => "Examine",
		2911	reply => undef,
		2912	tooltip => "Signs and other items you examined",
		2913	},
		2914	"c/shopinfo" => {
		2915	id => "infobox",
		2916	title => "Shop Info",
		2917	reply => undef,
		2918	tooltip => "What your bargaining skill tells you about the shop",
		2919	},
		2920	"c/book" => {
		2921	id => "infobox",
		2922	title => "Book",
		2923	reply => undef,
		2924	tooltip => "The contents of a note or book",
		2925	},
		2926	"c/lookat" => {
		2927	id => "infobox",
		2928	title => "Look",
		2929	reply => undef,
		2930	tooltip => "What you saw there",
		2931	},
		2932	"c/who" => {
		2933	id => "infobox",
		2934	title => "Players",
		2935	reply => undef,
		2936	tooltip => "Shows players who are currently online",
		2937	},
		2938	"c/body" => {
		2939	id => "infobox",
		2940	title => "Body Parts",
		2941	reply => undef,
		2942	tooltip => "Shows which body parts you posess and are available",
		2943	},
		2944	"c/statistics" => {
		2945	id => "infobox",
		2946	title => "Statistics",
		2947	reply => undef,
		2948	tooltip => "Shows your primary statistics",
		2949	},
		2950	"c/skills" => {
		2951	id => "infobox",
		2952	title => "Skills",
		2953	reply => undef,
		2954	tooltip => "Shows your experience per skill and item power",
		2955	},
		2956	"c/shopitems" => {
		2957	id => "infobox",
		2958	title => "Shop Items",
		2959	reply => undef,
		2960	tooltip => "Shows the items currently for sale in this shop",
		2961	},
		2962	"c/resistances" => {
		2963	id => "infobox",
		2964	title => "Resistances",
		2965	reply => undef,
		2966	tooltip => "Shows your resistances",
		2967	},
		2968	"c/pets" => {
		2969	id => "infobox",
		2970	title => "Pets",
		2971	reply => undef,
		2972	tooltip => "Shows information abotu your pets/a specific pet",
		2973	},
		2974	"c/perceiveself" => {
		2975	id => "infobox",
		2976	title => "Perceive Self",
		2977	reply => undef,
		2978	tooltip => "You gained detailed knowledge about yourself",
		2979	},
		2980	"c/uptime" => {
		2981	id => "infobox",
		2982	title => "Uptime",
		2983	reply => undef,
		2984	tooltip => "How long the server has been running since last restart",
		2985	},
		2986	"c/mapinfo" => {
		2987	id => "infobox",
		2988	title => "Map Info",
		2989	reply => undef,
		2990	tooltip => "Information related to the maps",
		2991	},
		2992	"c/party" => {
		2993	id => "party",
		2994	title => "Party",
		2995	reply => "gsay ",
		2996	tooltip => "Messages and chat related to your party",
		2997	},
		2998	"c/death" => {
		2999	id => "death",
		3000	title => "Death",
		3001	reply => undef,
		3002	tooltip => "Reason for and more info about your most recent death",
		3003	},
		3004	"c/say" => $SAY_CHANNEL,
		3005	"c/chat" => $CHAT_CHANNEL,
		3006	);
		3007
		3008	sub cf::client::send_msg {
		3009	my ($self, $channel, $msg, $color, @extra) = @_;
		3010
		3011	$msg = $self->pl->expand_cfpod ($msg)
		3012	unless $color & cf::NDI_VERBATIM;
		3013
		3014	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3015
		3016	# check predefined channels, for the benefit of C
		3017	if ($CHANNEL{$channel}) {
		3018	$channel = $CHANNEL{$channel};
		3019
		3020	$self->ext_msg (channel_info => $channel);
		3021	$channel = $channel->{id};
		3022
		3023	} elsif (ref $channel) {
		3024	# send meta info to client, if not yet sent
		3025	unless (exists $self->{channel}{$channel->{id}}) {
		3026	$self->{channel}{$channel->{id}} = $channel;
		3027	$self->ext_msg (channel_info => $channel);
		3028	}
		3029
		3030	$channel = $channel->{id};
		3031	}
		3032
		3033	return unless @extra || length $msg;
		3034
		3035	# default colour, mask it out
		3036	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3037	if $color & cf::NDI_DEF;
		3038
		3039	my $pkt = "msg "
		3040	. $self->{json_coder}->encode (
		3041	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3042	);
		3043
		3044	$self->send_big_packet ($pkt);
		3045	}
		3046
		3047	=item $client->ext_msg ($type, @msg)
		3048
		3049	Sends an ext event to the client.
		3050
		3051	=cut
		3052
		3053	sub cf::client::ext_msg($$@) {
		3054	my ($self, $type, @msg) = @_;
		3055
		3056	if ($self->extcmd == 2) {
		3057	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3058	} elsif ($self->extcmd == 1) { # TODO: remove
		3059	push @msg, msgtype => "event_$type";
		3060	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3061	}
		3062	}
		3063
		3064	=item $client->ext_reply ($msgid, @msg)
		3065
		3066	Sends an ext reply to the client.
		3067
		3068	=cut
		3069
		3070	sub cf::client::ext_reply($$@) {
		3071	my ($self, $id, @msg) = @_;
		3072
		3073	if ($self->extcmd == 2) {
		3074	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3075	} elsif ($self->extcmd == 1) {
		3076	#TODO: version 1, remove
		3077	unshift @msg, msgtype => "reply", msgid => $id;
		3078	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3079	}
		3080	}
1696		3081
1697	=item $success = $client->query ($flags, "text", \&cb)	3082	=item $success = $client->query ($flags, "text", \&cb)
1698		3083
1699	Queues a query to the client, calling the given callback with	3084	Queues a query to the client, calling the given callback with
1700	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3085	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1701	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3086	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1702		3087
1703	Queries can fail, so check the return code. Or don't, as queries will become	3088	Queries can fail, so check the return code. Or don't, as queries will
1704	reliable at some point in the future.	3089	become reliable at some point in the future.
1705		3090
1706	=cut	3091	=cut
1707		3092
1708	sub cf::client::query {	3093	sub cf::client::query {
1709	my ($self, $flags, $text, $cb) = @_;	3094	my ($self, $flags, $text, $cb) = @_;
…		…
1717	utf8::encode $text;	3102	utf8::encode $text;
1718	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3103	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1719		3104
1720	$self->send_packet ($self->{query_queue}[0][0])	3105	$self->send_packet ($self->{query_queue}[0][0])
1721	if @{ $self->{query_queue} } == 1;	3106	if @{ $self->{query_queue} } == 1;
		3107
		3108	1
1722	}	3109	}
1723		3110
1724	cf::client->attach (	3111	cf::client->attach (
		3112	on_connect => sub {
		3113	my ($ns) = @_;
		3114
		3115	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3116	},
1725	on_reply => sub {	3117	on_reply => sub {
1726	my ($ns, $msg) = @_;	3118	my ($ns, $msg) = @_;
1727		3119
1728	# this weird shuffling is so that direct followup queries	3120	# this weird shuffling is so that direct followup queries
1729	# get handled first	3121	# get handled first
1730	my $queue = delete $ns->{query_queue}	3122	my $queue = delete $ns->{query_queue}
1731	or return; # be conservative, not sure how that can happen, but we saw a crash here	3123	or return; # be conservative, not sure how that can happen, but we saw a crash here
1732		3124
1733	(shift @$queue)->[1]->($msg);	3125	(shift @$queue)->[1]->($msg);
		3126	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1734		3127
1735	push @{ $ns->{query_queue} }, @$queue;	3128	push @{ $ns->{query_queue} }, @$queue;
1736		3129
1737	if (@{ $ns->{query_queue} } == @$queue) {	3130	if (@{ $ns->{query_queue} } == @$queue) {
1738	if (@$queue) {	3131	if (@$queue) {
…		…
1740	} else {	3133	} else {
1741	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3134	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1742	}	3135	}
1743	}	3136	}
1744	},	3137	},
		3138	on_exticmd => sub {
		3139	my ($ns, $buf) = @_;
		3140
		3141	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3142
		3143	if (ref $msg) {
		3144	my ($type, $reply, @payload) =
		3145	"ARRAY" eq ref $msg
		3146	? @$msg
		3147	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3148
		3149	my @reply;
		3150
		3151	if (my $cb = $EXTICMD{$type}) {
		3152	@reply = $cb->($ns, @payload);
		3153	}
		3154
		3155	$ns->ext_reply ($reply, @reply)
		3156	if $reply;
		3157
		3158	} else {
		3159	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3160	}
		3161
		3162	cf::override;
		3163	},
1745	);	3164	);
1746		3165
1747	=item $client->coro (\&cb)	3166	=item $client->async (\&cb)
1748		3167
1749	Create a new coroutine, running the specified callback. The coroutine will	3168	Create a new coroutine, running the specified callback. The coroutine will
1750	be automatically cancelled when the client gets destroyed (e.g. on logout,	3169	be automatically cancelled when the client gets destroyed (e.g. on logout,
1751	or loss of connection).	3170	or loss of connection).
1752		3171
1753	=cut	3172	=cut
1754		3173
1755	sub cf::client::coro {	3174	sub cf::client::async {
1756	my ($self, $cb) = @_;	3175	my ($self, $cb) = @_;
1757		3176
1758	my $coro = &cf::async ($cb);	3177	my $coro = &Coro::async ($cb);
1759		3178
1760	$coro->on_destroy (sub {	3179	$coro->on_destroy (sub {
1761	delete $self->{_coro}{$coro+0};	3180	delete $self->{_coro}{$coro+0};
1762	});	3181	});
1763		3182
…		…
1765		3184
1766	$coro	3185	$coro
1767	}	3186	}
1768		3187
1769	cf::client->attach (	3188	cf::client->attach (
1770	on_destroy => sub {	3189	on_client_destroy => sub {
1771	my ($ns) = @_;	3190	my ($ns) = @_;
1772		3191
1773	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3192	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1774	},	3193	},
1775	);	3194	);
…		…
1790	our $safe = new Safe "safe";	3209	our $safe = new Safe "safe";
1791	our $safe_hole = new Safe::Hole;	3210	our $safe_hole = new Safe::Hole;
1792		3211
1793	$SIG{FPE} = 'IGNORE';	3212	$SIG{FPE} = 'IGNORE';
1794		3213
1795	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3214	$safe->permit_only (Opcode::opset qw(
		3215	:base_core :base_mem :base_orig :base_math :base_loop
		3216	grepstart grepwhile mapstart mapwhile
		3217	sort time
		3218	));
1796		3219
1797	# here we export the classes and methods available to script code	3220	# here we export the classes and methods available to script code
1798		3221
1799	=pod	3222	=pod
1800		3223
1801	The following fucntions and emthods are available within a safe environment:	3224	The following functions and methods are available within a safe environment:
1802		3225
1803	cf::object contr pay_amount pay_player map	3226	cf::object
		3227	contr pay_amount pay_player map x y force_find force_add destroy
		3228	insert remove name archname title slaying race decrease split
		3229	value
		3230
1804	cf::object::player player	3231	cf::object::player
1805	cf::player peaceful	3232	player
1806	cf::map trigger	3233
		3234	cf::player
		3235	peaceful
		3236
		3237	cf::map
		3238	trigger
1807		3239
1808	=cut	3240	=cut
1809		3241
1810	for (	3242	for (
1811	["cf::object" => qw(contr pay_amount pay_player map)],	3243	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3244	insert remove inv nrof name archname title slaying race
		3245	decrease split destroy change_exp value msg lore send_msg)],
1812	["cf::object::player" => qw(player)],	3246	["cf::object::player" => qw(player)],
1813	["cf::player" => qw(peaceful)],	3247	["cf::player" => qw(peaceful send_msg)],
1814	["cf::map" => qw(trigger)],	3248	["cf::map" => qw(trigger)],
1815	) {	3249	) {
1816	no strict 'refs';	3250	no strict 'refs';
1817	my ($pkg, @funs) = @$_;	3251	my ($pkg, @funs) = @$_;
1818	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3252	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1836		3270
1837	my $qcode = $code;	3271	my $qcode = $code;
1838	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3272	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1839	$qcode =~ s/\n/\\n/g;	3273	$qcode =~ s/\n/\\n/g;
1840		3274
		3275	%vars = (_dummy => 0) unless %vars;
		3276
		3277	my @res;
1841	local $_;	3278	local $_;
1842	local @safe::cf::_safe_eval_args = values %vars;
1843		3279
1844	my $eval =	3280	my $eval =
1845	"do {\n"	3281	"do {\n"
1846	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3282	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1847	. "#line 0 \"{$qcode}\"\n"	3283	. "#line 0 \"{$qcode}\"\n"
1848	. $code	3284	. $code
1849	. "\n}"	3285	. "\n}"
1850	;	3286	;
1851		3287
		3288	if ($CFG{safe_eval}) {
1852	sub_generation_inc;	3289	sub_generation_inc;
		3290	local @safe::cf::_safe_eval_args = values %vars;
1853	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3291	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1854	sub_generation_inc;	3292	sub_generation_inc;
		3293	} else {
		3294	local @cf::_safe_eval_args = values %vars;
		3295	@res = wantarray ? eval eval : scalar eval $eval;
		3296	}
1855		3297
1856	if ($@) {	3298	if ($@) {
1857	warn "$@";	3299	warn "$@";
1858	warn "while executing safe code '$code'\n";	3300	warn "while executing safe code '$code'\n";
1859	warn "with arguments " . (join " ", %vars) . "\n";	3301	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1878	=cut	3320	=cut
1879		3321
1880	sub register_script_function {	3322	sub register_script_function {
1881	my ($fun, $cb) = @_;	3323	my ($fun, $cb) = @_;
1882		3324
1883	no strict 'refs';	3325	$fun = "safe::$fun" if $CFG{safe_eval};
1884	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3326	*$fun = $safe_hole->wrap ($cb);
1885	}	3327	}
1886		3328
1887	=back	3329	=back
1888		3330
1889	=cut	3331	=cut
1890		3332
1891	#############################################################################	3333	#############################################################################
		3334	# the server's init and main functions
1892		3335
1893	=head2 EXTENSION DATABASE SUPPORT	3336	sub load_facedata($) {
		3337	my ($path) = @_;
1894		3338
1895	Crossfire maintains a very simple database for extension use. It can	3339	# HACK to clear player env face cache, we need some signal framework
1896	currently store anything that can be serialised using Storable, which	3340	# for this (global event?)
1897	excludes objects.	3341	%ext::player_env::MUSIC_FACE_CACHE = ();
1898		3342
1899	The parameter C<$family> should best start with the name of the extension	3343	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1900	using it, it should be unique.
1901		3344
1902	=over 4	3345	warn "loading facedata from $path\n";
1903		3346
1904	=item $hashref = cf::db_get $family	3347	my $facedata;
		3348	0 < aio_load $path, $facedata
		3349	or die "$path: $!";
1905		3350
1906	Return a hashref for use by the extension C<$family>, which can be	3351	$facedata = Coro::Storable::thaw $facedata;
1907	modified. After modifications, you have to call C<cf::db_dirty> or
1908	C<cf::db_sync>.
1909		3352
1910	=item $value = cf::db_get $family => $key	3353	$facedata->{version} == 2
		3354	or cf::cleanup "$path: version mismatch, cannot proceed.";
1911		3355
1912	Returns a single value from the database	3356	# patch in the exptable
1913		3357	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1914	=item cf::db_put $family => $hashref	3358	$facedata->{resource}{"res/exp_table"} = {
1915		3359	type => FT_RSRC,
1916	Stores the given family hashref into the database. Updates are delayed, if	3360	data => $exp_table,
1917	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3361	hash => (Digest::MD5::md5 $exp_table),
1918
1919	=item cf::db_put $family => $key => $value
1920
1921	Stores the given C<$value> in the family hash. Updates are delayed, if you
1922	want the data to be synced to disk immediately, use C<cf::db_sync>.
1923
1924	=item cf::db_dirty
1925
1926	Marks the database as dirty, to be updated at a later time.
1927
1928	=item cf::db_sync
1929
1930	Immediately write the database to disk I<if it is dirty>.
1931
1932	=cut
1933
1934	our $DB;
1935
1936	{
1937	my $path = cf::localdir . "/database.pst";
1938
1939	sub db_load() {
1940	$DB = stat $path ? Storable::retrieve $path : { };
1941	}
1942
1943	my $pid;
1944
1945	sub db_save() {
1946	waitpid $pid, 0 if $pid;
1947	if (0 == ($pid = fork)) {
1948	$DB->{_meta}{version} = 1;
1949	Storable::nstore $DB, "$path~";
1950	rename "$path~", $path;
1951	cf::_exit 0 if defined $pid;
1952	}
1953	}
1954
1955	my $dirty;
1956
1957	sub db_sync() {
1958	db_save if $dirty;
1959	undef $dirty;
1960	}
1961
1962	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1963	db_sync;
1964	});	3362	};
		3363	cf::cede_to_tick;
1965		3364
1966	sub db_dirty() {
1967	$dirty = 1;
1968	$idle->start;
1969	}	3365	{
		3366	my $faces = $facedata->{faceinfo};
1970		3367
1971	sub db_get($;$) {	3368	while (my ($face, $info) = each %$faces) {
1972	@_ >= 2	3369	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1973	? $DB->{$_[0]}{$_[1]}
1974	: ($DB->{$_[0]} ||= { })
1975	}
1976		3370
1977	sub db_put($$;$) {	3371	cf::face::set_visibility $idx, $info->{visibility};
1978	if (@_ >= 3) {	3372	cf::face::set_magicmap $idx, $info->{magicmap};
1979	$DB->{$_[0]}{$_[1]} = $_[2];	3373	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1980	} else {	3374	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1981	$DB->{$_[0]} = $_[1];
1982	}
1983	db_dirty;
1984	}
1985		3375
1986	cf::global->attach (	3376	cf::cede_to_tick;
1987	prio => 10000,
1988	on_cleanup => sub {
1989	db_sync;
1990	},	3377	}
1991	);
1992	}
1993		3378
1994	#############################################################################	3379	while (my ($face, $info) = each %$faces) {
1995	# the server's main()	3380	next unless $info->{smooth};
1996		3381
1997	sub cfg_load {	3382	my $idx = cf::face::find $face
		3383	or next;
		3384
		3385	if (my $smooth = cf::face::find $info->{smooth}) {
		3386	cf::face::set_smooth $idx, $smooth;
		3387	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3388	} else {
		3389	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3390	}
		3391
		3392	cf::cede_to_tick;
		3393	}
		3394	}
		3395
		3396	{
		3397	my $anims = $facedata->{animinfo};
		3398
		3399	while (my ($anim, $info) = each %$anims) {
		3400	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3401	cf::cede_to_tick;
		3402	}
		3403
		3404	cf::anim::invalidate_all; # d'oh
		3405	}
		3406
		3407	{
		3408	my $res = $facedata->{resource};
		3409
		3410	while (my ($name, $info) = each %$res) {
		3411	if (defined $info->{type}) {
		3412	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3413
		3414	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3415	cf::face::set_type $idx, $info->{type};
		3416	} else {
		3417	$RESOURCE{$name} = $info;
		3418	}
		3419
		3420	cf::cede_to_tick;
		3421	}
		3422	}
		3423
		3424	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3425
		3426	1
		3427	}
		3428
		3429	cf::global->attach (on_resource_update => sub {
		3430	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3431	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3432
		3433	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3434	my $sound = $soundconf->{compat}[$_]
		3435	or next;
		3436
		3437	my $face = cf::face::find "sound/$sound->[1]";
		3438	cf::sound::set $sound->[0] => $face;
		3439	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3440	}
		3441
		3442	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3443	my $face = cf::face::find "sound/$v";
		3444	cf::sound::set $k => $face;
		3445	}
		3446	}
		3447	});
		3448
		3449	register_exticmd fx_want => sub {
		3450	my ($ns, $want) = @_;
		3451
		3452	while (my ($k, $v) = each %$want) {
		3453	$ns->fx_want ($k, $v);
		3454	}
		3455	};
		3456
		3457	sub load_resource_file($) {
		3458	my $guard = lock_acquire "load_resource_file";
		3459
		3460	my $status = load_resource_file_ $_[0];
		3461	get_slot 0.1, 100;
		3462	cf::arch::commit_load;
		3463
		3464	$status
		3465	}
		3466
		3467	sub reload_regions {
		3468	# HACK to clear player env face cache, we need some signal framework
		3469	# for this (global event?)
		3470	%ext::player_env::MUSIC_FACE_CACHE = ();
		3471
		3472	load_resource_file "$MAPDIR/regions"
		3473	or die "unable to load regions file\n";
		3474
		3475	for (cf::region::list) {
		3476	$_->{match} = qr/$_->{match}/
		3477	if exists $_->{match};
		3478	}
		3479	}
		3480
		3481	sub reload_facedata {
		3482	load_facedata "$DATADIR/facedata"
		3483	or die "unable to load facedata\n";
		3484	}
		3485
		3486	sub reload_archetypes {
		3487	load_resource_file "$DATADIR/archetypes"
		3488	or die "unable to load archetypes\n";
		3489	}
		3490
		3491	sub reload_treasures {
		3492	load_resource_file "$DATADIR/treasures"
		3493	or die "unable to load treasurelists\n";
		3494	}
		3495
		3496	sub reload_resources {
		3497	warn "reloading resource files...\n";
		3498
		3499	reload_facedata;
		3500	reload_archetypes;
		3501	reload_regions;
		3502	reload_treasures;
		3503
		3504	warn "finished reloading resource files\n";
		3505	}
		3506
		3507	sub reload_config {
		3508	warn "reloading config file...\n";
		3509
1998	open my $fh, "<:utf8", cf::confdir . "/config"	3510	open my $fh, "<:utf8", "$CONFDIR/config"
1999	or return;	3511	or return;
2000		3512
2001	local $/;	3513	local $/;
2002	*CFG = YAML::Syck::Load <$fh>;	3514	*CFG = YAML::XS::Load scalar <$fh>;
2003		3515
2004	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3516	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3517
		3518	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3519	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2005		3520
2006	if (exists $CFG{mlockall}) {	3521	if (exists $CFG{mlockall}) {
2007	eval {	3522	eval {
2008	$CFG{mlockall} ? &mlockall : &munlockall	3523	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2009	and die "WARNING: m(un)lockall failed: $!\n";	3524	and die "WARNING: m(un)lockall failed: $!\n";
2010	};	3525	};
2011	warn $@ if $@;	3526	warn $@ if $@;
2012	}	3527	}
		3528
		3529	warn "finished reloading resource files\n";
		3530	}
		3531
		3532	sub pidfile() {
		3533	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3534	or die "$PIDFILE: $!";
		3535	flock $fh, &Fcntl::LOCK_EX
		3536	or die "$PIDFILE: flock: $!";
		3537	$fh
		3538	}
		3539
		3540	# make sure only one server instance is running at any one time
		3541	sub atomic {
		3542	my $fh = pidfile;
		3543
		3544	my $pid = <$fh>;
		3545	kill 9, $pid if $pid > 0;
		3546
		3547	seek $fh, 0, 0;
		3548	print $fh $$;
		3549	}
		3550
		3551	sub main_loop {
		3552	warn "EV::loop starting\n";
		3553	if (1) {
		3554	EV::loop;
		3555	}
		3556	warn "EV::loop returned\n";
		3557	goto &main_loop unless $REALLY_UNLOOP;
2013	}	3558	}
2014		3559
2015	sub main {	3560	sub main {
		3561	cf::init_globals; # initialise logging
		3562
		3563	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3564	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3565	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3566	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3567
		3568	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3569
2016	# we must not ever block the main coroutine	3570	# we must not ever block the main coroutine
2017	local $Coro::idle = sub {	3571	local $Coro::idle = sub {
2018	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3572	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2019	(Coro::unblock_sub {	3573	(async {
2020	Event::one_event;	3574	$Coro::current->{desc} = "IDLE BUG HANDLER";
2021	})->();	3575	EV::loop EV::LOOP_ONESHOT;
		3576	})->prio (Coro::PRIO_MAX);
2022	};	3577	};
2023		3578
2024	cfg_load;	3579	evthread_start IO::AIO::poll_fileno;
2025	db_load;	3580
		3581	cf::sync_job {
		3582	cf::init_experience;
		3583	cf::init_anim;
		3584	cf::init_attackmess;
		3585	cf::init_dynamic;
		3586
		3587	cf::load_settings;
		3588	cf::load_materials;
		3589
		3590	reload_resources;
		3591	reload_config;
		3592	db_init;
		3593
		3594	cf::init_uuid;
		3595	cf::init_signals;
		3596	cf::init_skills;
		3597
		3598	cf::init_beforeplay;
		3599
		3600	atomic;
		3601
2026	load_extensions;	3602	load_extensions;
2027	Event::loop;	3603
		3604	utime time, time, $RUNTIMEFILE;
		3605
		3606	# no (long-running) fork's whatsoever before this point(!)
		3607	use POSIX ();
		3608	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3609
		3610	(pop @POST_INIT)->(0) while @POST_INIT;
		3611	};
		3612
		3613	cf::object::thawer::errors_are_fatal 0;
		3614	warn "parse errors in files are no longer fatal from this point on.\n";
		3615
		3616	main_loop;
2028	}	3617	}
2029		3618
2030	#############################################################################	3619	#############################################################################
2031	# initialisation	3620	# initialisation and cleanup
2032		3621
		3622	# install some emergency cleanup handlers
		3623	BEGIN {
		3624	our %SIGWATCHER = ();
		3625	for my $signal (qw(INT HUP TERM)) {
		3626	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3627	cf::cleanup "SIG$signal";
		3628	};
		3629	}
		3630	}
		3631
		3632	sub write_runtime_sync {
		3633	my $t0 = AE::time;
		3634
		3635	# first touch the runtime file to show we are still running:
		3636	# the fsync below can take a very very long time.
		3637
		3638	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3639
		3640	my $guard = cf::lock_acquire "write_runtime";
		3641
		3642	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3643	or return;
		3644
		3645	my $value = $cf::RUNTIME + 90 + 10;
		3646	# 10 is the runtime save interval, for a monotonic clock
		3647	# 60 allows for the watchdog to kill the server.
		3648
		3649	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3650	and return;
		3651
		3652	# always fsync - this file is important
		3653	aio_fsync $fh
		3654	and return;
		3655
		3656	# touch it again to show we are up-to-date
		3657	aio_utime $fh, undef, undef;
		3658
		3659	close $fh
		3660	or return;
		3661
		3662	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3663	and return;
		3664
		3665	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3666
		3667	1
		3668	}
		3669
		3670	our $uuid_lock;
		3671	our $uuid_skip;
		3672
		3673	sub write_uuid_sync($) {
		3674	$uuid_skip ||= $_[0];
		3675
		3676	return if $uuid_lock;
		3677	local $uuid_lock = 1;
		3678
		3679	my $uuid = "$LOCALDIR/uuid";
		3680
		3681	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3682	or return;
		3683
		3684	my $value = uuid_seq uuid_cur;
		3685
		3686	unless ($value) {
		3687	warn "cowardly refusing to write zero uuid value!\n";
		3688	return;
		3689	}
		3690
		3691	my $value = uuid_str $value + $uuid_skip;
		3692	$uuid_skip = 0;
		3693
		3694	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3695	and return;
		3696
		3697	# always fsync - this file is important
		3698	aio_fsync $fh
		3699	and return;
		3700
		3701	close $fh
		3702	or return;
		3703
		3704	aio_rename "$uuid~", $uuid
		3705	and return;
		3706
		3707	warn "uuid file written ($value).\n";
		3708
		3709	1
		3710
		3711	}
		3712
		3713	sub write_uuid($$) {
		3714	my ($skip, $sync) = @_;
		3715
		3716	$sync ? write_uuid_sync $skip
		3717	: async { write_uuid_sync $skip };
		3718	}
		3719
		3720	sub emergency_save() {
		3721	my $freeze_guard = cf::freeze_mainloop;
		3722
		3723	warn "emergency_perl_save: enter\n";
		3724
		3725	cf::sync_job {
		3726	# this is a trade-off: we want to be very quick here, so
		3727	# save all maps without fsync, and later call a global sync
		3728	# (which in turn might be very very slow)
		3729	local $USE_FSYNC = 0;
		3730
		3731	# use a peculiar iteration method to avoid tripping on perl
		3732	# refcount bugs in for. also avoids problems with players
		3733	# and maps saved/destroyed asynchronously.
		3734	warn "emergency_perl_save: begin player save\n";
		3735	for my $login (keys %cf::PLAYER) {
		3736	my $pl = $cf::PLAYER{$login} or next;
		3737	$pl->valid or next;
		3738	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3739	$pl->save;
		3740	}
		3741	warn "emergency_perl_save: end player save\n";
		3742
		3743	warn "emergency_perl_save: begin map save\n";
		3744	for my $path (keys %cf::MAP) {
		3745	my $map = $cf::MAP{$path} or next;
		3746	$map->valid or next;
		3747	$map->save;
		3748	}
		3749	warn "emergency_perl_save: end map save\n";
		3750
		3751	warn "emergency_perl_save: begin database checkpoint\n";
		3752	BDB::db_env_txn_checkpoint $DB_ENV;
		3753	warn "emergency_perl_save: end database checkpoint\n";
		3754
		3755	warn "emergency_perl_save: begin write uuid\n";
		3756	write_uuid_sync 1;
		3757	warn "emergency_perl_save: end write uuid\n";
		3758	};
		3759
		3760	warn "emergency_perl_save: starting sync()\n";
		3761	IO::AIO::aio_sync sub {
		3762	warn "emergency_perl_save: finished sync()\n";
		3763	};
		3764
		3765	warn "emergency_perl_save: leave\n";
		3766	}
		3767
		3768	sub post_cleanup {
		3769	my ($make_core) = @_;
		3770
		3771	warn Carp::longmess "post_cleanup backtrace"
		3772	if $make_core;
		3773
		3774	my $fh = pidfile;
		3775	unlink $PIDFILE if <$fh> == $$;
		3776	}
		3777
		3778	# a safer delete_package, copied from Symbol
		3779	sub clear_package($) {
		3780	my $pkg = shift;
		3781
		3782	# expand to full symbol table name if needed
		3783	unless ($pkg =~ /^main::.*::$/) {
		3784	$pkg = "main$pkg" if $pkg =~ /^::/;
		3785	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3786	$pkg .= '::' unless $pkg =~ /::$/;
		3787	}
		3788
		3789	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3790	my $stem_symtab = *{$stem}{HASH};
		3791
		3792	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3793	or return;
		3794
		3795	# clear all symbols
		3796	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3797	for my $name (keys %$leaf_symtab) {
		3798	_gv_clear *{"$pkg$name"};
		3799	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3800	}
		3801	}
		3802
2033	sub reload() {	3803	sub do_reload_perl() {
2034	# can/must only be called in main	3804	# can/must only be called in main
2035	if ($Coro::current != $Coro::main) {	3805	if (in_main) {
2036	warn "can only reload from main coroutine\n";	3806	warn "can only reload from main coroutine";
2037	return;	3807	return;
2038	}	3808	}
2039		3809
		3810	return if $RELOAD++;
		3811
		3812	my $t1 = AE::time;
		3813
		3814	while ($RELOAD) {
2040	warn "reloading...";	3815	warn "reloading...";
2041		3816
2042	my $guard = freeze_mainloop;	3817	warn "entering sync_job";
		3818
		3819	cf::sync_job {
		3820	cf::write_runtime_sync; # external watchdog should not bark
2043	cf::emergency_save;	3821	cf::emergency_save;
		3822	cf::write_runtime_sync; # external watchdog should not bark
2044		3823
2045	eval {	3824	warn "syncing database to disk";
		3825	BDB::db_env_txn_checkpoint $DB_ENV;
		3826
2046	# if anything goes wrong in here, we should simply crash as we already saved	3827	# if anything goes wrong in here, we should simply crash as we already saved
2047		3828
2048	# cancel all watchers	3829	warn "flushing outstanding aio requests";
2049	for (Event::all_watchers) {	3830	while (IO::AIO::nreqs || BDB::nreqs) {
2050	$_->cancel if $_->data & WF_AUTOCANCEL;	3831	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2051	}
2052
2053	# cancel all extension coros
2054	$_->cancel for values %EXT_CORO;
2055	%EXT_CORO = ();
2056
2057	# unload all extensions
2058	for (@exts) {
2059	warn "unloading <$_>";
2060	unload_extension $_;
2061	}
2062
2063	# unload all modules loaded from $LIBDIR
2064	while (my ($k, $v) = each %INC) {
2065	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2066
2067	warn "removing <$k>";
2068	delete $INC{$k};
2069
2070	$k =~ s/\.pm$//;
2071	$k =~ s/\//::/g;
2072
2073	if (my $cb = $k->can ("unload_module")) {
2074	$cb->();
2075	}	3832	}
2076		3833
2077	Symbol::delete_package $k;	3834	warn "cancelling all extension coros";
		3835	$_->cancel for values %EXT_CORO;
		3836	%EXT_CORO = ();
		3837
		3838	warn "removing commands";
		3839	%COMMAND = ();
		3840
		3841	warn "removing ext/exti commands";
		3842	%EXTCMD = ();
		3843	%EXTICMD = ();
		3844
		3845	warn "unloading/nuking all extensions";
		3846	for my $pkg (@EXTS) {
		3847	warn "... unloading $pkg";
		3848
		3849	if (my $cb = $pkg->can ("unload")) {
		3850	eval {
		3851	$cb->($pkg);
		3852	1
		3853	} or warn "$pkg unloaded, but with errors: $@";
		3854	}
		3855
		3856	warn "... clearing $pkg";
		3857	clear_package $pkg;
2078	}	3858	}
2079		3859
2080	# sync database to disk	3860	warn "unloading all perl modules loaded from $LIBDIR";
2081	cf::db_sync;	3861	while (my ($k, $v) = each %INC) {
2082	IO::AIO::flush;	3862	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2083		3863
		3864	warn "... unloading $k";
		3865	delete $INC{$k};
		3866
		3867	$k =~ s/\.pm$//;
		3868	$k =~ s/\//::/g;
		3869
		3870	if (my $cb = $k->can ("unload_module")) {
		3871	$cb->();
		3872	}
		3873
		3874	clear_package $k;
		3875	}
		3876
2084	# get rid of safe::, as good as possible	3877	warn "getting rid of safe::, as good as possible";
2085	Symbol::delete_package "safe::$_"	3878	clear_package "safe::$_"
2086	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3879	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2087		3880
2088	# remove register_script_function callbacks	3881	warn "unloading cf.pm \"a bit\"";
2089	# TODO
2090
2091	# unload cf.pm "a bit"
2092	delete $INC{"cf.pm"};	3882	delete $INC{"cf.pm"};
		3883	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2093		3884
2094	# don't, removes xs symbols, too,	3885	# don't, removes xs symbols, too,
2095	# and global variables created in xs	3886	# and global variables created in xs
2096	#Symbol::delete_package __PACKAGE__;	3887	#clear_package __PACKAGE__;
2097		3888
2098	# reload cf.pm	3889	warn "unload completed, starting to reload now";
		3890
2099	warn "reloading cf.pm";	3891	warn "reloading cf.pm";
2100	require cf;	3892	require cf;
2101	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3893	cf::_connect_to_perl_1;
2102		3894
2103	# load config and database again	3895	warn "loading config and database again";
2104	cf::cfg_load;	3896	cf::reload_config;
2105	cf::db_load;
2106		3897
2107	# load extensions
2108	warn "load extensions";	3898	warn "loading extensions";
2109	cf::load_extensions;	3899	cf::load_extensions;
2110		3900
2111	# reattach attachments to objects	3901	if ($REATTACH_ON_RELOAD) {
		3902	warn "reattaching attachments to objects/players";
		3903	_global_reattach; # objects, sockets
		3904	warn "reattaching attachments to maps";
		3905	reattach $_ for values %MAP;
		3906	warn "reattaching attachments to players";
		3907	reattach $_ for values %PLAYER;
		3908	}
		3909
		3910	warn "running post_init jobs";
		3911	(pop @POST_INIT)->(1) while @POST_INIT;
		3912
		3913	warn "leaving sync_job";
		3914
		3915	1
		3916	} or do {
		3917	warn $@;
		3918	cf::cleanup "error while reloading, exiting.";
		3919	};
		3920
2112	warn "reattach";	3921	warn "reloaded";
2113	_global_reattach;	3922	--$RELOAD;
		3923	}
		3924
		3925	$t1 = AE::time - $t1;
		3926	warn "reload completed in ${t1}s\n";
		3927	};
		3928
		3929	our $RELOAD_WATCHER; # used only during reload
		3930
		3931	sub reload_perl() {
		3932	# doing reload synchronously and two reloads happen back-to-back,
		3933	# coro crashes during coro_state_free->destroy here.
		3934
		3935	$RELOAD_WATCHER ||= cf::async {
		3936	Coro::AIO::aio_wait cache_extensions;
		3937
		3938	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3939	do_reload_perl;
		3940	undef $RELOAD_WATCHER;
		3941	};
2114	};	3942	};
2115
2116	if ($@) {
2117	warn $@;
2118	warn "error while reloading, exiting.";
2119	exit 1;
2120	}
2121
2122	warn "reloaded successfully";
2123	};
2124
2125	#############################################################################
2126
2127	unless ($LINK_MAP) {
2128	$LINK_MAP = cf::map::new;
2129
2130	$LINK_MAP->width (41);
2131	$LINK_MAP->height (41);
2132	$LINK_MAP->alloc;
2133	$LINK_MAP->path ("{link}");
2134	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2135	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2136
2137	# dirty hack because... archetypes are not yet loaded
2138	Event->timer (
2139	after => 2,
2140	cb => sub {
2141	$_[0]->w->cancel;
2142
2143	# provide some exits "home"
2144	my $exit = cf::object::new "exit";
2145
2146	$exit->slaying ($EMERGENCY_POSITION->[0]);
2147	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2148	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2149
2150	$LINK_MAP->insert ($exit->clone, 19, 19);
2151	$LINK_MAP->insert ($exit->clone, 19, 20);
2152	$LINK_MAP->insert ($exit->clone, 19, 21);
2153	$LINK_MAP->insert ($exit->clone, 20, 19);
2154	$LINK_MAP->insert ($exit->clone, 20, 21);
2155	$LINK_MAP->insert ($exit->clone, 21, 19);
2156	$LINK_MAP->insert ($exit->clone, 21, 20);
2157	$LINK_MAP->insert ($exit->clone, 21, 21);
2158
2159	$exit->destroy;
2160	});
2161
2162	$LINK_MAP->{deny_save} = 1;
2163	$LINK_MAP->{deny_reset} = 1;
2164
2165	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2166	}	3943	}
2167
2168	register "<global>", __PACKAGE__;
2169		3944
2170	register_command "reload" => sub {	3945	register_command "reload" => sub {
2171	my ($who, $arg) = @_;	3946	my ($who, $arg) = @_;
2172		3947
2173	if ($who->flag (FLAG_WIZ)) {	3948	if ($who->flag (FLAG_WIZ)) {
2174	$who->message ("start of reload.");
2175	reload;
2176	$who->message ("end of reload.");	3949	$who->message ("reloading server.");
		3950	async {
		3951	$Coro::current->{desc} = "perl_reload";
		3952	reload_perl;
		3953	};
2177	}	3954	}
2178	};	3955	};
2179		3956
2180	unshift @INC, $LIBDIR;	3957	unshift @INC, $LIBDIR;
2181		3958
2182	$TICK_WATCHER = Event->timer (	3959	my $bug_warning = 0;
2183	reentrant => 0,	3960
2184	prio => 0,	3961	our @WAIT_FOR_TICK;
2185	at => $NEXT_TICK || $TICK,	3962	our @WAIT_FOR_TICK_BEGIN;
2186	data => WF_AUTOCANCEL,	3963
2187	cb => sub {	3964	sub wait_for_tick {
		3965	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3966
		3967	my $signal = new Coro::Signal;
		3968	push @WAIT_FOR_TICK, $signal;
		3969	$signal->wait;
		3970	}
		3971
		3972	sub wait_for_tick_begin {
		3973	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3974
		3975	my $signal = new Coro::Signal;
		3976	push @WAIT_FOR_TICK_BEGIN, $signal;
		3977	$signal->wait;
		3978	}
		3979
		3980	sub tick {
		3981	if ($Coro::current != $Coro::main) {
		3982	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3983	unless ++$bug_warning > 10;
		3984	return;
		3985	}
		3986
2188	cf::server_tick; # one server iteration	3987	cf::server_tick; # one server iteration
2189	$RUNTIME += $TICK;
2190	$NEXT_TICK += $TICK;
2191		3988
2192	# if we are delayed by four ticks or more, skip them all	3989	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2193	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2194		3990
2195	$TICK_WATCHER->at ($NEXT_TICK);	3991	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2196	$TICK_WATCHER->start;	3992	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2197	},	3993	Coro::async_pool {
2198	);	3994	$Coro::current->{desc} = "runtime saver";
2199
2200	IO::AIO::max_poll_time $TICK * 0.2;
2201
2202	Event->io (
2203	fd => IO::AIO::poll_fileno,
2204	poll => 'r',
2205	prio => 5,
2206	data => WF_AUTOCANCEL,
2207	cb => \&IO::AIO::poll_cb,
2208	);
2209
2210	Event->timer (
2211	data => WF_AUTOCANCEL,
2212	after => 0,
2213	interval => 10,
2214	cb => sub {
2215	(Coro::unblock_sub {
2216	write_runtime	3995	write_runtime_sync
2217	or warn "ERROR: unable to write runtime file: $!";	3996	or warn "ERROR: unable to write runtime file: $!";
2218	})->();	3997	};
2219	},	3998	}
2220	);	3999
		4000	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4001	$sig->send;
		4002	}
		4003	while (my $sig = shift @WAIT_FOR_TICK) {
		4004	$sig->send;
		4005	}
		4006
		4007	$LOAD = ($NOW - $TICK_START) / $TICK;
		4008	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4009
		4010	if (0) {
		4011	if ($NEXT_TICK) {
		4012	my $jitter = $TICK_START - $NEXT_TICK;
		4013	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4014	warn "jitter $JITTER\n";#d#
		4015	}
		4016	}
		4017	}
		4018
		4019	{
		4020	# configure BDB
		4021
		4022	BDB::min_parallel 16;
		4023	BDB::max_poll_reqs $TICK * 0.1;
		4024	$AnyEvent::BDB::WATCHER->priority (1);
		4025
		4026	unless ($DB_ENV) {
		4027	$DB_ENV = BDB::db_env_create;
		4028	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4029	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4030	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4031	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4032	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4033
		4034	cf::sync_job {
		4035	eval {
		4036	BDB::db_env_open
		4037	$DB_ENV,
		4038	$BDBDIR,
		4039	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4040	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4041	0666;
		4042
		4043	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4044	};
		4045
		4046	cf::cleanup "db_env_open(db): $@" if $@;
		4047	};
		4048	}
		4049
		4050	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4051	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4052	};
		4053	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4054	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4055	};
		4056	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4057	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4058	};
		4059	}
		4060
		4061	{
		4062	# configure IO::AIO
		4063
		4064	IO::AIO::min_parallel 8;
		4065	IO::AIO::max_poll_time $TICK * 0.1;
		4066	undef $AnyEvent::AIO::WATCHER;
		4067	}
		4068
		4069	my $_log_backtrace;
		4070
		4071	sub _log_backtrace {
		4072	my ($msg, @addr) = @_;
		4073
		4074	$msg =~ s/\n//;
		4075
		4076	# limit the # of concurrent backtraces
		4077	if ($_log_backtrace < 2) {
		4078	++$_log_backtrace;
		4079	my $perl_bt = Carp::longmess $msg;
		4080	async {
		4081	$Coro::current->{desc} = "abt $msg";
		4082
		4083	my @bt = fork_call {
		4084	@addr = map { sprintf "%x", $_ } @addr;
		4085	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4086	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4087	or die "addr2line: $!";
		4088
		4089	my @funcs;
		4090	my @res = <$fh>;
		4091	chomp for @res;
		4092	while (@res) {
		4093	my ($func, $line) = splice @res, 0, 2, ();
		4094	push @funcs, "[$func] $line";
		4095	}
		4096
		4097	@funcs
		4098	};
		4099
		4100	LOG llevInfo, "[ABT] $perl_bt\n";
		4101	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4102	LOG llevInfo, "[ABT] $_\n" for @bt;
		4103	--$_log_backtrace;
		4104	};
		4105	} else {
		4106	LOG llevInfo, "[ABT] $msg\n";
		4107	LOG llevInfo, "[ABT] [suppressed]\n";
		4108	}
		4109	}
		4110
		4111	# load additional modules
		4112	require "cf/$_.pm" for @EXTRA_MODULES;
		4113	cf::_connect_to_perl_2;
2221		4114
2222	END { cf::emergency_save }	4115	END { cf::emergency_save }
2223		4116
2224	1	4117	1
2225		4118

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