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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.126 by root, Tue Jan 2 23:12:47 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 $FREEZE;	136	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	137
56	our %EXT_CORO;	138	# used to convert map paths into valid unix filenames by replacing / by ∕
		139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		140
		141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
		144	our $TICK_START; # for load detecting purposes
		145
		146	our @POST_INIT;
		147
		148	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		149	our $REALLY_UNLOOP; # never set to true, please :)
57		150
58	binmode STDOUT;	151	binmode STDOUT;
59	binmode STDERR;	152	binmode STDERR;
60		153
61	# read virtual server time, if available	154	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	156	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
66	}	159	}
67		160
68	mkdir cf::localdir;	161	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		162
74	# a special map that is always available	163	mkdir $_
75	our $LINK_MAP;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		165
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	166	our $EMERGENCY_POSITION;
		167
		168	sub cf::map::normalise;
		169
		170	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::"} };
78		184
79	#############################################################################	185	#############################################################################
80		186
81	=head2 GLOBAL VARIABLES	187	=head2 GLOBAL VARIABLES
82		188
…		…
89	=item $cf::RUNTIME	195	=item $cf::RUNTIME
90		196
91	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
92	every server tick.	198	every server tick.
93		199
94	=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
95		203
96	The perl library directory, where extensions and cf-specific modules can	204	Various directories - "/etc", read-only install directory, perl-library
97	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.
98		208
99	=item $cf::NOW	209	=item $cf::NOW
100		210
101	The time of the last (current) server tick.	211	The time of the last (current) server tick.
102		212
103	=item $cf::TICK	213	=item $cf::TICK
104		214
105	The interval between server ticks, in seconds.	215	The interval between server ticks, in seconds.
106		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
107	=item %cf::CFG	227	=item %cf::CFG
108		228
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	229	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	230	from wherever your confdir points to.
111		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
112	=back	250	=back
113		251
114	=cut	252	=cut
115		253
116	BEGIN {	254	$Coro::State::WARNHOOK = sub {
117	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	255	my $msg = join "", @_;
119	utf8::encode $msg;
120		256
121	$msg .= "\n"	257	$msg .= "\n"
122	unless $msg =~ /\n$/;	258	unless $msg =~ /\n$/;
123		259
		260	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		261
124	LOG llevError, "cfperl: $msg";	262	LOG llevError, $msg;
125	};	263	};
126	}	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	};
127		278
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	279	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	280	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	281	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	282	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@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';
133	@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)
134		286
135	# 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
136	# within the Safe compartment.	288	# within the Safe compartment.
137	for my $pkg (qw(	289	for my $pkg (qw(
138	cf::global cf::attachable	290	cf::global cf::attachable
139	cf::object cf::object::player	291	cf::object cf::object::player
140	cf::client cf::player	292	cf::client cf::player
141	cf::arch cf::living	293	cf::arch cf::living
		294	cf::map cf::mapspace
142	cf::map cf::party cf::region	295	cf::party cf::region
143	)) {	296	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	297	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	298	}
147		299
148	$Event::DIED = sub {	300	$EV::DIED = sub {
149	warn "error in event callback: @_";	301	Carp::cluck "error in event callback: @_";
150	};	302	};
151		303
152	my %ext_pkg;	304	#############################################################################
153	my @exts;
154	my @hook;
155		305
156	=head2 UTILITY FUNCTIONS	306	=head2 UTILITY FUNCTIONS
157		307
158	=over 4	308	=over 4
159		309
160	=cut	310	=item dumpval $ref
161		311
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	312	=cut
163		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
164	=item $ref = cf::from_json $json	333	=item $ref = cf::decode_json $json
165		334
166	Converts a JSON string into the corresponding perl data structure.	335	Converts a JSON string into the corresponding perl data structure.
167		336
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	337	=item $json = cf::encode_json $ref
176		338
177	Converts a perl data structure into its JSON representation.	339	Converts a perl data structure into its JSON representation.
178		340
179	=cut	341	=cut
180		342
181	sub to_json($) {	343	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		344
186	=item my $guard = cf::guard { BLOCK }	345	sub encode_json($) { $json_coder->encode ($_[0]) }
		346	sub decode_json($) { $json_coder->decode ($_[0]) }
187		347
188	Run the given callback when the guard object gets destroyed (useful for	348	=item cf::post_init { BLOCK }
189	coroutine cancellations).
190		349
191	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,
192	being executed.	351	but I<before> the server starts ticking again.
193		352
194	=cut	353	The cdoeblock will have a single boolean argument to indicate whether this
		354	is a reload or not.
195		355
196	sub guard(&) {	356	=cut
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199		357
200	sub cf::guard::cancel {	358	sub post_init(&) {
201	${$_[0]} = sub { };	359	push @POST_INIT, shift;
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}	360	}
207		361
208	=item cf::lock_wait $string	362	=item cf::lock_wait $string
209		363
210	Wait until the given lock is available. See cf::lock_acquire.	364	Wait until the given lock is available. See cf::lock_acquire.
211		365
212	=item my $lock = cf::lock_acquire $string	366	=item my $lock = cf::lock_acquire $string
213		367
214	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
215	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,
216	for example when the coroutine gets canceled), the lock is automatically	370	for example when the coroutine gets canceled), the lock is automatically
217	returned.	371	returned.
218		372
		373	Locks are *not* recursive, locking from the same coro twice results in a
		374	deadlocked coro.
		375
219	Lock names should begin with a unique identifier (for example, find_map	376	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	377	uses map_find and cf::map::load uses map_load).
221		378
222	=cut	379	=item $locked = cf::lock_active $string
223		380
224	our %LOCK;	381	Return true if the lock is currently active, i.e. somebody has locked it.
		382
		383	=cut
		384
		385	our $LOCKS = new Coro::SemaphoreSet;
225		386
226	sub lock_wait($) {	387	sub lock_wait($) {
227	my ($key) = @_;	388	$LOCKS->wait ($_[0]);
228
229	# wait for lock, if any
230	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;
233	}
234	}	389	}
235		390
236	sub lock_acquire($) {	391	sub lock_acquire($) {
237	my ($key) = @_;	392	$LOCKS->guard ($_[0])
238
239	# wait, to be sure we are not locked
240	lock_wait $key;
241
242	$LOCK{$key} = [];
243
244	cf::guard {
245	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };
247	}
248	}	393	}
		394
		395	sub lock_active($) {
		396	$LOCKS->count ($_[0]) < 1
		397	}
		398
		399	sub freeze_mainloop {
		400	tick_inhibit_inc;
		401
		402	&Guard::guard (\&tick_inhibit_dec);
		403	}
		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($$) {
		413	my ($interval, $cb) = @_;
		414
		415	my $start = rand List::Util::min 180, $interval;
		416
		417	EV::periodic $start, $interval, 0, $cb
		418	}
		419
		420	=item cf::get_slot $time[, $priority[, $name]]
		421
		422	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		423	This call blocks and returns only when you have at least C<$time> seconds
		424	of cpu time till the next tick. The slot is only valid till the next cede.
		425
		426	The optional C<$name> can be used to identify the job to run. It might be
		427	used for statistical purposes and should identify the same time-class.
		428
		429	Useful for short background jobs.
		430
		431	=cut
		432
		433	our @SLOT_QUEUE;
		434	our $SLOT_QUEUE;
		435	our $SLOT_DECAY = 0.9;
		436
		437	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		438	$SLOT_QUEUE = Coro::async {
		439	$Coro::current->desc ("timeslot manager");
		440
		441	my $signal = new Coro::Signal;
		442	my $busy;
		443
		444	while () {
		445	next_job:
		446
		447	my $avail = cf::till_tick;
		448
		449	for (0 .. $#SLOT_QUEUE) {
		450	if ($SLOT_QUEUE[$_][0] <= $avail) {
		451	$busy = 0;
		452	my $job = splice @SLOT_QUEUE, $_, 1, ();
		453	$job->[2]->send;
		454	Coro::cede;
		455	goto next_job;
		456	} else {
		457	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		458	}
		459	}
		460
		461	if (@SLOT_QUEUE) {
		462	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		463	push @cf::WAIT_FOR_TICK, $signal;
		464	$signal->wait;
		465	} else {
		466	$busy = 0;
		467	Coro::schedule;
		468	}
		469	}
		470	};
		471
		472	sub get_slot($;$$) {
		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	$sig->wait;
		485	}
		486
		487	=item cf::async { BLOCK }
		488
		489	Currently the same as Coro::async_pool, meaning you cannot use
		490	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		491	thing you are allowed to do is call C<prio> on it.
		492
		493	=cut
		494
		495	BEGIN { *async = \&Coro::async_pool }
249		496
250	=item cf::sync_job { BLOCK }	497	=item cf::sync_job { BLOCK }
251		498
252	The design of crossfire+ requires that the main coro ($Coro::main) is	499	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	500	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	501	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		502	acceptable.
255		503
256	If it must be done, put the blocking parts into C<sync_job>. This will run	504	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	505	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	506	server will be frozen during this time, so the block should either finish
259	fast or be very important.	507	fast or be very important.
…		…
262		510
263	sub sync_job(&) {	511	sub sync_job(&) {
264	my ($job) = @_;	512	my ($job) = @_;
265		513
266	if ($Coro::current == $Coro::main) {	514	if ($Coro::current == $Coro::main) {
		515	my $time = AE::time;
		516
267	# this is the main coro, too bad, we have to block	517	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	518	# till the operation succeeds, freezing the server :/
269		519
270	# TODO: use suspend/resume instead	520	LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	521
272	local $FREEZE = 1;	522	my $freeze_guard = freeze_mainloop;
273		523
274	my $busy = 1;	524	my $busy = 1;
275	my @res;	525	my @res;
276		526
277	(Coro::async {	527	(async {
		528	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	529	@res = eval { $job->() };
279	warn $@ if $@;	530	warn $@ if $@;
280	undef $busy;	531	undef $busy;
281	})->prio (Coro::PRIO_MAX);	532	})->prio (Coro::PRIO_MAX);
282		533
283	while ($busy) {	534	while ($busy) {
		535	if (Coro::nready) {
284	Coro::cede_notself;	536	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	537	} else {
		538	EV::loop EV::LOOP_ONESHOT;
286	}	539	}
		540	}
		541
		542	my $time = AE::time - $time;
		543
		544	$TICK_START += $time; # do not account sync jobs to server load
287		545
288	wantarray ? @res : $res[0]	546	wantarray ? @res : $res[0]
289	} else {	547	} else {
290	# we are in another coroutine, how wonderful, everything just works	548	# we are in another coroutine, how wonderful, everything just works
291		549
292	$job->()	550	$job->()
293	}	551	}
294	}	552	}
295		553
296	=item $coro = cf::coro { BLOCK }	554	=item $coro = cf::async_ext { BLOCK }
297		555
298	Creates and returns a new coro. This coro is automcatially being canceled	556	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	557	extension calling this is being unloaded.
300		558
301	=cut	559	=cut
302		560
303	sub coro(&) {	561	sub async_ext(&) {
304	my $cb = shift;	562	my $cb = shift;
305		563
306	my $coro; $coro = async {	564	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		565
313	$coro->on_destroy (sub {	566	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	567	delete $EXT_CORO{$coro+0};
315	});	568	});
316	$EXT_CORO{$coro+0} = $coro;	569	$EXT_CORO{$coro+0} = $coro;
317		570
318	$coro	571	$coro
319	}	572	}
320		573
321	sub write_runtime {	574	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		575
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	576	Executes the given code block with the given arguments in a seperate
325	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.
326		580
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	581	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		582
331	aio_fsync $fh	583	sub fork_call(&@) {
332	and return;	584	my ($cb, @args) = @_;
333		585
334	close $fh	586	# we seemingly have to make a local copy of the whole thing,
335	or return;	587	# otherwise perl prematurely frees the stuff :/
		588	# TODO: investigate and fix (likely this will be rather laborious)
336		589
337	aio_rename "$runtime~", $runtime	590	my @res = Coro::Util::fork_eval {
338	and return;	591	reset_signals;
		592	&$cb
		593	}, @args;
339		594
		595	wantarray ? @res : $res[-1]
		596	}
		597
		598	sub objinfo {
340	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 => $type });
341	}	772	}
342		773
343	=back	774	=back
344		775
345	=cut	776	=cut
346		777
347	#############################################################################	778	#############################################################################
348		779
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466
467	#############################################################################
468
469	=head2 ATTACHABLE OBJECTS	780	=head2 ATTACHABLE OBJECTS
470		781
471	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
472	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")
473	to it. All such attachable objects support the following methods.	784	to it. All such attachable objects support the following methods.
474		785
475	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>
476	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
477	crossfire+).	788	Deliantra).
478		789
479	=over 4	790	=over 4
480		791
481	=item $attachable->attach ($attachment, key => $value...)	792	=item $attachable->attach ($attachment, key => $value...)
482		793
…		…
526	=item cf::CLASS::attachment $name, ...	837	=item cf::CLASS::attachment $name, ...
527		838
528	Register an attachment by C<$name> through which attachable objects of the	839	Register an attachment by C<$name> through which attachable objects of the
529	given CLASS can refer to this attachment.	840	given CLASS can refer to this attachment.
530		841
531	Some classes such as crossfire maps and objects can specify attachments	842	Some classes such as deliantra maps and objects can specify attachments
532	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.
533		844
534	These calls expect any number of the following handler/hook descriptions:	845	These calls expect any number of the following handler/hook descriptions:
535		846
536	=over 4	847	=over 4
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	907	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	908	our @CB_MAP = ();
598		909
599	my %attachment;	910	my %attachment;
600		911
		912	sub cf::attachable::thawer_merge {
		913	# simply override everything except _meta
		914	local $_[0]{_meta};
		915	%{$_[0]} = %{$_[1]};
		916	}
		917
601	sub _attach_cb($$$$) {	918	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	919	my ($registry, $event, $prio, $cb) = @_;
603		920
604	use sort 'stable';	921	use sort 'stable';
605		922
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	956	$registry = $CB_TYPE[$object_type] ||= [];
640		957
641	} elsif ($type eq "subtype") {	958	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	959	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	960	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	961	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		962
646	} elsif ($type eq "package") {	963	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	964	my $pkg = shift @arg;
648		965
649	while (my ($name, $id) = each %cb_id) {	966	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	995	_attach $registry, $klass, @attach;
679	}	996	}
680		997
681	$obj->{$name} = \%arg;	998	$obj->{$name} = \%arg;
682	} else {	999	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	1000	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	1001	}
685		1002
686	$obj->{_attachment}{$name} = undef;	1003	$obj->{_attachment}{$name} = undef;
687	}	1004	}
688		1005
…		…
690	if (ref $_[0]) {	1007	if (ref $_[0]) {
691	_object_attach @_;	1008	_object_attach @_;
692	} else {	1009	} else {
693	_attach shift->_attach_registry, @_;	1010	_attach shift->_attach_registry, @_;
694	}	1011	}
		1012	_recalc_want;
695	};	1013	};
696		1014
697	# all those should be optimised	1015	# all those should be optimised
698	sub cf::attachable::detach {	1016	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	1017	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	1020	delete $obj->{_attachment}{$name};
703	reattach ($obj);	1021	reattach ($obj);
704	} else {	1022	} else {
705	Carp::croak "cannot, currently, detach class attachments";	1023	Carp::croak "cannot, currently, detach class attachments";
706	}	1024	}
		1025	_recalc_want;
707	};	1026	};
708		1027
709	sub cf::attachable::attached {	1028	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	1029	my ($obj, $name) = @_;
711		1030
…		…
726	";	1045	";
727	die if $@;	1046	die if $@;
728	}	1047	}
729		1048
730	our $override;	1049	our $override;
731	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?
732		1051
733	sub override {	1052	sub override {
734	$override = 1;	1053	$override = 1;
735	@invoke_results = ();	1054	@INVOKE_RESULTS = (@_);
736	}	1055	}
737		1056
738	sub do_invoke {	1057	sub do_invoke {
739	my $event = shift;	1058	my $event = shift;
740	my $callbacks = shift;	1059	my $callbacks = shift;
741		1060
742	@invoke_results = ();	1061	@INVOKE_RESULTS = ();
743		1062
744	local $override;	1063	local $override;
745		1064
746	for (@$callbacks) {	1065	for (@$callbacks) {
747	eval { &{$_->[1]} };	1066	eval { &{$_->[1]} };
…		…
756	}	1075	}
757		1076
758	0	1077	0
759	}	1078	}
760		1079
761	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1080	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
762		1081
763	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1082	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
764		1083
765	Generate an object-specific event with the given arguments.	1084	Generate an object-specific event with the given arguments.
766		1085
767	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
768	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
769	results (if you must, access C<@cf::invoke_results> directly).	1088	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		1089
771	=back	1090	=back
772		1091
773	=cut	1092	=cut
774		1093
775	#############################################################################	1094	#############################################################################
776	# 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	}
777		1138
778	sub reattach {	1139	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	1140	# basically do the same as instantiate, without calling instantiate
780	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
781		1145
782	my $registry = $obj->registry;	1146	my $registry = $obj->registry;
783		1147
784	@$registry = ();	1148	@$registry = ();
785		1149
…		…
800	cf::attachable->attach (	1164	cf::attachable->attach (
801	prio => -1000000,	1165	prio => -1000000,
802	on_instantiate => sub {	1166	on_instantiate => sub {
803	my ($obj, $data) = @_;	1167	my ($obj, $data) = @_;
804		1168
805	$data = from_json $data;	1169	$data = decode_json $data;
806		1170
807	for (@$data) {	1171	for (@$data) {
808	my ($name, $args) = @$_;	1172	my ($name, $args) = @$_;
809		1173
810	$obj->attach ($name, %{$args || {} });	1174	$obj->attach ($name, %{$args || {} });
…		…
826	sub object_freezer_save {	1190	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1191	my ($filename, $rdata, $objs) = @_;
828		1192
829	sync_job {	1193	sync_job {
830	if (length $$rdata) {	1194	if (length $$rdata) {
		1195	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1196	warn sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1197	$decname, length $$rdata, scalar @$objs;
833		1198
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1199	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1200	aio_chmod $fh, SAVE_MODE;
836	aio_write $fh, 0, (length $$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;
837	aio_fsync $fh;	1204	aio_fsync $fh;
		1205	}
838	close $fh;	1206	aio_close $fh;
839		1207
840	if (@$objs) {	1208	if (@$objs) {
841	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) {
842	chmod SAVE_MODE, $fh;	1210	aio_chmod $fh, SAVE_MODE;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1211	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
844	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;
845	aio_fsync $fh;	1215	aio_fsync $fh;
		1216	}
846	close $fh;	1217	aio_close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1218	aio_rename "$filename.pst~", "$filename.pst";
848	}	1219	}
849	} else {	1220	} else {
850	aio_unlink "$filename.pst";	1221	aio_unlink "$filename.pst";
851	}	1222	}
852		1223
853	aio_rename "$filename~", $filename;	1224	aio_rename "$filename~", $filename;
		1225
		1226	$filename =~ s%/[^/]+$%%;
		1227	aio_pathsync $filename if $cf::USE_FSYNC;
854	} else {	1228	} else {
855	warn "FATAL: $filename~: $!\n";	1229	warn "unable to save objects: $filename~: $!\n";
856	}	1230	}
857	} else {	1231	} else {
858	aio_unlink $filename;	1232	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1233	aio_unlink "$filename.pst";
860	}	1234	}
861	}	1235	};
862	}	1236	}
863		1237
864	sub object_freezer_as_string {	1238	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1239	my ($rdata, $objs) = @_;
866		1240
…		…
878	or return;	1252	or return;
879		1253
880	unless (aio_stat "$filename.pst") {	1254	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1255	(aio_load "$filename.pst", $av) >= 0
882	or return;	1256	or return;
		1257
883	$av = eval { (Storable::thaw $av)->{objs} };	1258	my $st = eval { Coro::Storable::thaw $av };
		1259	$av = $st->{objs};
884	}	1260	}
885		1261
		1262	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1263	warn sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1264	$decname, length $data, scalar @{$av || []};
		1265
888	return ($data, $av);	1266	($data, $av)
889	}	1267	}
		1268
		1269	=head2 COMMAND CALLBACKS
		1270
		1271	=over 4
		1272
		1273	=cut
890		1274
891	#############################################################################	1275	#############################################################################
892	# command handling &c	1276	# command handling &c
893		1277
894	=item cf::register_command $name => \&callback($ob,$args);	1278	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1291	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1292	}
909		1293
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1294	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1295
912	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.
913		1301
914	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
915	called.	1303	called.
916		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
917	=cut	1316	=cut
918		1317
919	sub register_extcmd {	1318	sub register_extcmd {
920	my ($name, $cb) = @_;	1319	my ($name, $cb) = @_;
921		1320
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1321	$EXTCMD{$name} = $cb;
926	}	1322	}
		1323
		1324	sub register_exticmd {
		1325	my ($name, $cb) = @_;
		1326
		1327	$EXTICMD{$name} = $cb;
		1328	}
		1329
		1330	use File::Glob ();
927		1331
928	cf::player->attach (	1332	cf::player->attach (
929	on_command => sub {	1333	on_unknown_command => sub {
930	my ($pl, $name, $params) = @_;	1334	my ($pl, $name, $params) = @_;
931		1335
932	my $cb = $COMMAND{$name}	1336	my $cb = $COMMAND{$name}
933	or return;	1337	or return;
934		1338
…		…
939	cf::override;	1343	cf::override;
940	},	1344	},
941	on_extcmd => sub {	1345	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1346	my ($pl, $buf) = @_;
943		1347
944	my $msg = eval { from_json $buf };	1348	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1349
946	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
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1358	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1359	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1360	}
		1361
		1362	$pl->ext_reply ($reply, @reply)
		1363	if $reply;
		1364
952	} else {	1365	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1366	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1367	}
955		1368
956	cf::override;	1369	cf::override;
957	},	1370	},
958	);	1371	);
959		1372
960	sub register {	1373	# "readahead" all extensions
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1374	sub cache_extensions {
967	my ($path) = @_;	1375	my $grp = IO::AIO::aio_group;
968		1376
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1377	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
970	my $base = $1;	1378	for (grep /\.ext$/, @{$_[0]}) {
971	my $pkg = $1;	1379	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974
975	warn "loading '$path' into '$pkg'\n";
976
977	open my $fh, "<:utf8", $path
978	or die "$path: $!";
979
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }
1009
1010	# remove commands
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}	1380	}
1019	}	1381	};
1020		1382
1021	# remove extcmds	1383	$grp
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}	1384	}
1035		1385
1036	sub load_extensions {	1386	sub load_extensions {
		1387	cf::sync_job {
		1388	my %todo;
		1389
1037	for my $ext (<$LIBDIR/*.ext>) {	1390	for my $path (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;	1391	next unless -r $path;
1039	eval {	1392
1040	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	}
1041	1	1456	}
1042	} 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	}
1043	}	1467	};
1044	}	1468	}
1045		1469
1046	#############################################################################	1470	#############################################################################
1047	# load/save/clean perl data associated with a map
1048		1471
1049	*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($) {
1050	my ($map) = @_;	1526	my ($login) = @_;
1051		1527
1052	my $path = $map->tmpname;	1528	$cf::PLAYER{$login}
1053	defined $path or return;	1529	or !aio_stat path $login
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}	1530	}
1066		1531
1067	# 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
1068	cf::player->attach (	1559	cf::player->attach (
1069	on_load => sub {	1560	on_load => sub {
1070	my ($pl, $path) = @_;	1561	my ($pl, $path) = @_;
1071		1562
1072	for my $o (all_objects $pl->ob) {	1563	# restore slots saved in save, below
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1564	my $slots = delete $pl->{_slots};
1074	$o->set_ob_key_value ("_perl_data");
1075		1565
1076	%$o = %{ Storable::thaw pack "H*", $value };	1566	$pl->ob->current_weapon ($slots->[0]);
1077	}	1567	$pl->combat_ob ($slots->[1]);
1078	}	1568	$pl->ranged_ob ($slots->[2]);
1079	},	1569	},
1080	);	1570	);
1081		1571
1082	#############################################################################	1572	sub save($) {
		1573	my ($pl) = @_;
1083		1574
1084	=head2 CORE EXTENSIONS	1575	return if $pl->{deny_save};
1085		1576
1086	Functions and methods that extend core crossfire objects.	1577	my $path = path $pl;
		1578	my $guard = cf::lock_acquire "user_save:$path";
1087		1579
1088	=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($$@) {
		1751	my ($self, $type, @msg) = @_;
		1752
		1753	$self->ns->ext_msg ($type, @msg);
		1754	}
		1755
		1756	=head3 cf::region
1089		1757
1090	=over 4	1758	=over 4
1091		1759
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut	1760	=cut
1097		1761
1098	sub cf::player::exists($) {	1762	package cf::region;
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102		1763
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)	1764	=item cf::region::find_by_path $path
1104		1765
1105	Sends an ext reply to the player.	1766	Tries to decuce the likely region for a map knowing only its path.
1106		1767
1107	=cut	1768	=cut
1108		1769
1109	sub cf::player::ext_reply($$$%) {	1770	sub find_by_path($) {
1110	my ($self, $id, %msg) = @_;	1771	my ($path) = @_;
1111		1772
1112	$msg{msgid} = $id;	1773	$path =~ s/^~[^\/]*//; # skip ~login
1113		1774
1114	$self->send ("ext " . to_json \%msg);	1775	my ($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
1115	}	1785	}
1116		1786
1117	=back	1787	=back
1118
1119		1788
1120	=head3 cf::map	1789	=head3 cf::map
1121		1790
1122	=over 4	1791	=over 4
1123		1792
…		…
1126	package cf::map;	1795	package cf::map;
1127		1796
1128	use Fcntl;	1797	use Fcntl;
1129	use Coro::AIO;	1798	use Coro::AIO;
1130		1799
		1800	use overload
		1801	'""' => \&as_string,
		1802	fallback => 1;
		1803
1131	our $MAX_RESET = 7200;	1804	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1805	our $DEFAULT_RESET = 3000;
1133		1806
1134	sub generate_random_map {	1807	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1808	my ($self, $rmp) = @_;
		1809
		1810	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1136		1811
1137	# mit "rum" bekleckern, nicht	1812	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1813	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1814	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1815	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1816	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1817	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1818	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1819	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1820	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1821	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$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},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1823	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1824	(cf::region::find $rmp->{region}), $rmp->{custom}
		1825	)
1151	}	1826	}
1152		1827
1153	# and all this just because we cannot iterate over	1828	=item cf::map->register ($regex, $prio)
1154	# all maps in C++...
1155	sub change_all_map_light {
1156	my ($change) = @_;
1157		1829
1158	$_->change_map_light ($change)	1830	Register a handler for the map path matching the given regex at the
1159	for grep $_->outdoor, values %cf::MAP;	1831	givne priority (higher is better, built-in handlers have priority 0, the
1160	}	1832	default).
1161		1833
1162	sub try_load_header($) {	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 {
1163	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) = @_;
1164		1973
1165	utf8::encode $path;	1974	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1975	my $f = new_from_file cf::object::thawer $path
1167	or return;	1976	or return;
1168		1977
1169	my $map = cf::map::new	1978	$self->_load_header ($f)
1170	or return;	1979	or return;
1171		1980
1172	$map->load_header ($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
1173	or return;	2027	or return;
		2028	$self->prepare_orig;
		2029	}
1174		2030
1175	$map->{load_path} = $path;	2031	$self->{deny_reset} = 1
		2032	if $self->no_reset;
1176		2033
1177	$map	2034	$self->default_region (cf::region::find_by_path $self->{path})
1178	}	2035	unless $self->default_region;
1179		2036
		2037	1
		2038	}
		2039
1180	sub find_map;	2040	sub find;
1181	sub find_map {	2041	sub find {
1182	my ($path, $origin) = @_;	2042	my ($path, $origin) = @_;
1183		2043
1184	#warn "find_map<$path,$origin>\n";#d#
1185
1186	$path = new cf::path $path, $origin && $origin->path;	2044	$path = normalise $path, $origin && $origin->path;
1187	my $key = $path->as_string;
1188		2045
1189	cf::lock_wait "map_find:$key";	2046	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1190
1191	$cf::MAP{$key} || do {
1192	my $guard = cf::lock_acquire "map_find:$key";	2047	my $guard2 = cf::lock_acquire "map_find:$path";
1193		2048
1194	# do it the slow way	2049	$cf::MAP{$path} || do {
1195	my $map = try_load_header $path->save_path;	2050	my $map = new_from_path cf::map $path
1196
1197	if ($map) {
1198	# safety
1199	$map->{instantiate_time} = $cf::RUNTIME
1200	if $map->{instantiate_time} > $cf::RUNTIME;
1201	} else {
1202	if (my $rmp = $path->random_map_params) {
1203	$map = generate_random_map $key, $rmp;
1204	} else {
1205	$map = try_load_header $path->load_path;
1206	}
1207
1208	$map or return;	2051	or return;
1209		2052
1210	$map->{load_original} = 1;
1211	$map->{instantiate_time} = $cf::RUNTIME;
1212	$map->instantiate;
1213
1214	# per-player maps become, after loading, normal maps
1215	$map->per_player (0) if $path->{user_rel};
1216	}
1217
1218	$map->path ($key);
1219	$map->{path} = $path;
1220	$map->{last_save} = $cf::RUNTIME;	2053	$map->{last_save} = $cf::RUNTIME;
1221	$map->last_access ($cf::RUNTIME);
1222		2054
1223	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;
1224	$map->reset;	2063	$map->reset;
1225	undef $guard;	2064	return find $path;
1226	$map = find_map $path
1227	or return;
1228	}	2065	}
1229		2066
1230	$cf::MAP{$key} = $map	2067	$cf::MAP{$path} = $map
1231	}	2068	}
1232	}	2069	}
		2070
		2071	sub pre_load { }
		2072	#sub post_load { } # XS
1233		2073
1234	sub load {	2074	sub load {
1235	my ($self) = @_;	2075	my ($self) = @_;
1236		2076
		2077	local $self->{deny_reset} = 1; # loading can take a long time
		2078
1237	my $path = $self->{path};	2079	my $path = $self->{path};
		2080
		2081	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2082	my $guard = cf::lock_acquire "map_data:$path";
1239		2083
		2084	return unless $self->valid;
1240	return if $self->in_memory != cf::MAP_SWAPPED;	2085	return unless $self->in_memory == cf::MAP_SWAPPED;
1241		2086
1242	$self->in_memory (cf::MAP_LOADING);	2087	$self->in_memory (cf::MAP_LOADING);
1243		2088
1244	$self->alloc;	2089	$self->alloc;
1245	$self->load_objects ($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)
1246	or return;	2097	or return;
1247		2098
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2099	$self->post_load_original
1249	if delete $self->{load_original};	2100	if delete $self->{load_original};
1250		2101
1251	if (my $uniq = $path->uniq_path) {	2102	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	2103	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	2104	unless (aio_stat $uniq) {
		2105	if (my $f = new_from_file cf::object::thawer $uniq) {
1254	$self->clear_unique_items;	2106	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	2107	$self->_load_objects ($f);
		2108	$f->resolve_delayed_derefs;
		2109	}
1256	}	2110	}
1257	}	2111	}
1258		2112
		2113	$f->resolve_delayed_derefs;
		2114
		2115	cf::cede_to_tick;
1259	# now do the right thing for maps	2116	# now do the right thing for maps
1260	$self->link_multipart_objects;	2117	$self->link_multipart_objects;
1261
1262	if ($self->{path}->is_style_map) {
1263	$self->{deny_save} = 1;
1264	$self->{deny_reset} = 1;
1265	} else {
1266	$self->fix_auto_apply;
1267	$self->decay_objects;
1268	$self->update_buttons;
1269	$self->set_darkness_map;
1270	$self->difficulty ($self->estimate_difficulty)	2118	$self->difficulty ($self->estimate_difficulty)
1271	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;
1272	$self->activate;	2127	$self->activate;
1273	}	2128	}
1274		2129
		2130	$self->{last_save} = $cf::RUNTIME;
		2131	$self->last_access ($cf::RUNTIME);
		2132
1275	$self->in_memory (cf::MAP_IN_MEMORY);	2133	$self->in_memory (cf::MAP_ACTIVE);
1276	}	2134	}
1277		2135
1278	sub load_map_sync {	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	$neigh->load;
		2177	}
		2178	}
		2179
		2180	sub find_sync {
1279	my ($path, $origin) = @_;	2181	my ($path, $origin) = @_;
1280		2182
1281	#warn "load_map_sync<$path, $origin>\n";#d#	2183	cf::sync_job { find $path, $origin }
		2184	}
1282		2185
		2186	sub do_load_sync {
		2187	my ($map) = @_;
		2188
		2189	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2190	if $Coro::current == $Coro::main;
		2191
		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
1283	cf::sync_job {	2245	cf::async {
1284	my $map = cf::map::find_map $path, $origin	2246	$Coro::current->{desc} = "map player save";
1285	or return;	2247	$_->contr->save for $self->players;
1286	$map->load;	2248	};
1287	$map	2249
		2250	cf::get_slot 0.02;
		2251
		2252	if ($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);
1288	}	2257	}
1289	}	2258	}
1290		2259
1291	sub save {	2260	sub save {
1292	my ($self) = @_;	2261	my ($self) = @_;
1293		2262
1294	$self->{last_save} = $cf::RUNTIME;	2263	my $lock = cf::lock_acquire "map_data:$self->{path}";
1295		2264
1296	return unless $self->dirty;	2265	$self->_save;
1297
1298	my $save = $self->{path}->save_path; utf8::encode $save;
1299	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1300
1301	$self->{load_path} = $save;
1302
1303	return if $self->{deny_save};
1304
1305	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}
1311	}	2266	}
1312		2267
1313	sub swap_out {	2268	sub swap_out {
1314	my ($self) = @_;	2269	my ($self) = @_;
1315		2270
		2271	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2272
		2273	return if $self->in_memory != cf::MAP_ACTIVE;
		2274	return if $self->{deny_save};
1316	return if $self->players;	2275	return if $self->players;
1317	return if $self->in_memory != cf::MAP_IN_MEMORY;
1318	return if $self->{deny_save};
1319		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
1320	$self->save;	2283	$self->_save;
		2284
		2285	# then free the map
1321	$self->clear;	2286	$self->clear;
1322	$self->in_memory (cf::MAP_SWAPPED);
1323	}	2287	}
1324		2288
1325	sub reset_at {	2289	sub reset_at {
1326	my ($self) = @_;	2290	my ($self) = @_;
1327		2291
1328	# TODO: safety, remove and allow resettable per-player maps	2292	# TODO: safety, remove and allow resettable per-player maps
1329	return 1e99 if $self->{path}{user_rel};
1330	return 1e99 if $self->{deny_reset};	2293	return 1e99 if $self->{deny_reset};
1331		2294
1332	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2295	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1333	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2296	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1334		2297
…		…
1339	my ($self) = @_;	2302	my ($self) = @_;
1340		2303
1341	$self->reset_at <= $cf::RUNTIME	2304	$self->reset_at <= $cf::RUNTIME
1342	}	2305	}
1343		2306
1344	sub unlink_save {
1345	my ($self) = @_;
1346
1347	utf8::encode (my $save = $self->{path}->save_path);
1348	aioreq_pri 3; IO::AIO::aio_unlink $save;
1349	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1350	}
1351
1352	sub rename {
1353	my ($self, $new_path) = @_;
1354
1355	$self->unlink_save;
1356
1357	delete $cf::MAP{$self->path};
1358	$self->{path} = new cf::path $new_path;
1359	$self->path ($self->{path}->as_string);
1360	$cf::MAP{$self->path} = $self;
1361
1362	$self->save;
1363	}
1364
1365	sub reset {	2307	sub reset {
1366	my ($self) = @_;	2308	my ($self) = @_;
1367		2309
		2310	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2311
1368	return if $self->players;	2312	return if $self->players;
1369	return if $self->{path}{user_rel};#d#
1370		2313
1371	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	}
1372		2325
1373	delete $cf::MAP{$self->path};	2326	delete $cf::MAP{$self->path};
1374		2327
		2328	$self->deactivate;
1375	$_->clear_links_to ($self) for values %cf::MAP;	2329	$_->clear_links_to ($self) for values %cf::MAP;
		2330	$self->clear;
1376		2331
1377	$self->unlink_save;	2332	$self->unlink_save;
1378	$self->destroy;	2333	$self->destroy;
1379	}	2334	}
1380		2335
1381	my $nuke_counter = "aaaa";	2336	my $nuke_counter = "aaaa";
1382		2337
1383	sub nuke {	2338	sub nuke {
1384	my ($self) = @_;	2339	my ($self) = @_;
1385		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};
1386	$self->{deny_save} = 1;	2350	$self->{deny_save} = 1;
1387	$self->reset_timeout (1);	2351	$self->reset_timeout (1);
1388	$self->rename ("{nuke}/" . ($nuke_counter++));	2352	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2353
		2354	$cf::MAP{$self->path} = $self;
		2355	}
		2356
1389	$self->reset; # polite request, might not happen	2357	$self->reset; # polite request, might not happen
1390	}	2358	}
1391		2359
1392	sub customise_for {	2360	=item $maps = cf::map::tmp_maps
1393	my ($map, $ob) = @_;
1394		2361
1395	if ($map->per_player) {	2362	Returns an arrayref with all map paths of currently instantiated and saved
1396	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2363	maps. May block.
		2364
		2365	=cut
		2366
		2367	sub tmp_maps() {
1397	}	2368	[
1398		2369	map {
1399	$map	2370	utf8::decode $_;
		2371	/\.map$/
		2372	? normalise $_
		2373	: ()
		2374	} @{ aio_readdir $TMPDIR or [] }
		2375	]
1400	}	2376	}
1401		2377
1402	sub emergency_save {	2378	=item $maps = cf::map::random_maps
1403	local $cf::FREEZE = 1;
1404		2379
1405	warn "enter emergency map save\n";	2380	Returns an arrayref with all map paths of currently instantiated and saved
		2381	random maps. May block.
1406		2382
1407	cf::sync_job {	2383	=cut
1408	warn "begin emergency map save\n";	2384
1409	$_->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;
1410	};	2442	}
1411		2443
1412	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	}
1413	}	2499	}
1414		2500
1415	package cf;	2501	package cf;
1416		2502
1417	=back	2503	=back
1418
1419		2504
1420	=head3 cf::object::player	2505	=head3 cf::object::player
1421		2506
1422	=over 4	2507	=over 4
1423		2508
…		…
1426	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>
1427	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
1428	dialogue with the given NPC character.	2513	dialogue with the given NPC character.
1429		2514
1430	=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	};
1431		2530
1432	# rough implementation of a future "reply" method that works	2531	# rough implementation of a future "reply" method that works
1433	# with dialog boxes.	2532	# with dialog boxes.
1434	#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
1435	sub cf::object::player::reply($$$;$) {	2534	sub cf::object::player::reply($$$;$) {
…		…
1437		2536
1438	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2537	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1439		2538
1440	if ($self->{record_replies}) {	2539	if ($self->{record_replies}) {
1441	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2540	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2541
1442	} 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 {
1443	$msg = $npc->name . " says: $msg" if $npc;	2550	$msg = $npc->name . " says: $msg" if $npc;
1444	$self->message ($msg, $flags);	2551	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2552	}
1445	}	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 (@_);
1446	}	2564	}
1447		2565
1448	=item $player_object->may ("access")	2566	=item $player_object->may ("access")
1449		2567
1450	Returns wether the given player is authorized to access resource "access"	2568	Returns wether the given player is authorized to access resource "access"
…		…
1463		2581
1464	=item $player_object->enter_link	2582	=item $player_object->enter_link
1465		2583
1466	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}>).
1467		2585
1468	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.
1469	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.
1470		2592
1471	=item $player_object->leave_link ($map, $x, $y)	2593	=item $player_object->leave_link ($map, $x, $y)
1472		2594
1473	Moves the player out of the specila link map onto the given map. If the	2595	Moves the player out of the special C<{link}> map onto the specified
1474	map is not valid (or omitted), the player will be moved back to the	2596	map. If the map is not valid (or omitted), the player will be moved back
1475	location he/she was before the call to C<enter_link>, or, if that fails,	2597	to the location he/she was before the call to C<enter_link>, or, if that
1476	to the emergency map position.	2598	fails, to the emergency map position.
1477		2599
1478	Might block.	2600	Might block.
1479		2601
1480	=cut	2602	=cut
		2603
		2604	sub link_map {
		2605	unless ($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	$LINK_MAP
		2612	}
1481		2613
1482	sub cf::object::player::enter_link {	2614	sub cf::object::player::enter_link {
1483	my ($self) = @_;	2615	my ($self) = @_;
1484		2616
1485	$self->deactivate_recursive;	2617	$self->deactivate_recursive;
1486		2618
1487	return if $self->map == $LINK_MAP;	2619	return if UNIVERSAL::isa $self->map, "ext::map_link";
1488		2620
1489	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2621	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1490	if $self->map;	2622	if $self->map && $self->map->{path} ne "{link}";
1491		2623
1492	$self->enter_map ($LINK_MAP, 20, 20);	2624	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1493	}	2625	}
1494		2626
1495	sub cf::object::player::leave_link {	2627	sub cf::object::player::leave_link {
1496	my ($self, $map, $x, $y) = @_;	2628	my ($self, $map, $x, $y) = @_;
		2629
		2630	return unless $self->contr->active;
1497		2631
1498	my $link_pos = delete $self->{_link_pos};	2632	my $link_pos = delete $self->{_link_pos};
1499		2633
1500	unless ($map) {	2634	unless ($map) {
1501	# restore original map position	2635	# restore original map position
1502	($map, $x, $y) = @{ $link_pos || [] };	2636	($map, $x, $y) = @{ $link_pos || [] };
1503	$map = cf::map::find_map $map;	2637	$map = cf::map::find $map;
1504		2638
1505	unless ($map) {	2639	unless ($map) {
1506	($map, $x, $y) = @$EMERGENCY_POSITION;	2640	($map, $x, $y) = @$EMERGENCY_POSITION;
1507	$map = cf::map::find_map $map	2641	$map = cf::map::find $map
1508	or die "FATAL: cannot load emergency map\n";	2642	or die "FATAL: cannot load emergency map\n";
1509	}	2643	}
1510	}	2644	}
1511		2645
1512	($x, $y) = (-1, -1)	2646	($x, $y) = (-1, -1)
1513	unless (defined $x) && (defined $y);	2647	unless (defined $x) && (defined $y);
1514		2648
1515	# use -1 or undef as default coordinates, not 0, 0	2649	# use -1 or undef as default coordinates, not 0, 0
1516	($x, $y) = ($map->enter_x, $map->enter_y)	2650	($x, $y) = ($map->enter_x, $map->enter_y)
1517	if $x <=0 && $y <= 0;	2651	if $x <= 0 && $y <= 0;
1518		2652
1519	$map->load;	2653	$map->load;
		2654	$map->load_neighbours;
1520		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
1521	$self->activate_recursive;	2662	$self->activate_recursive;
1522	$self->enter_map ($map, $x, $y);
1523	}	2663	}
1524		2664
1525	cf::player->attach (	2665	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1526	on_logout => sub {
1527	my ($pl) = @_;
1528		2666
1529	# abort map switching before logout	2667	Moves the player to the given map-path and coordinates by first freezing
1530	if ($pl->ob->{_link_pos}) {	2668	her, loading and preparing them map, calling the provided $check callback
1531	cf::sync_job {	2669	that has to return the map if sucecssful, and then unfreezes the player on
1532	$pl->ob->leave_link	2670	the new (success) or old (failed) map position. In either case, $done will
1533	};	2671	be called at the end of this process.
1534	}
1535	},
1536	on_login => sub {
1537	my ($pl) = @_;
1538		2672
1539	# try to abort aborted map switching on player login :)	2673	Note that $check will be called with a potentially non-loaded map, so if
1540	# should happen only on crashes	2674	it needs a loaded map it has to call C<< ->load >>.
1541	if ($pl->ob->{_link_pos}) {
1542	$pl->ob->enter_link;
1543	Coro::async {
1544	# we need this sleep as the login has a concurrent enter_exit running
1545	# and this sleep increases chances of the player not ending up in scorn
1546	Coro::Timer::sleep 1;
1547	$pl->ob->leave_link;
1548	};
1549	}
1550	},
1551	);
1552		2675
1553	=item $player_object->goto_map ($path, $x, $y)
1554
1555	=cut	2676	=cut
1556		2677
		2678	our $GOTOGEN;
		2679
1557	sub cf::object::player::goto_map {	2680	sub cf::object::player::goto {
1558	my ($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;
1559		2685
1560	$self->enter_link;	2686	$self->enter_link;
1561		2687
1562	(Coro::async {	2688	(async {
1563	$path = new cf::path $path;	2689	$Coro::current->{desc} = "player::goto $path $x $y";
1564		2690
1565	my $map = cf::map::find_map $path->as_string;	2691	# *tag paths override both path and x|y
		2692	if ($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) {
1566	$map = $map->customise_for ($self) if $map;	2714	$map = $map->customise_for ($self);
1567		2715	$map = $check->($map) if $check && $map;
1568	# warn "entering ", $map->path, " at ($x, $y)\n"	2716	} else {
1569	# if $map;
1570
1571	$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	}
1572		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};
1573	$self->leave_link ($map, $x, $y);	2730	$self->leave_link ($map, $x, $y);
		2731	}
		2732
		2733	$done->() if $done;
1574	})->prio (1);	2734	})->prio (1);
1575	}	2735	}
1576		2736
1577	=item $player_object->enter_exit ($exit_object)	2737	=item $player_object->enter_exit ($exit_object)
1578		2738
…		…
1580		2740
1581	sub parse_random_map_params {	2741	sub parse_random_map_params {
1582	my ($spec) = @_;	2742	my ($spec) = @_;
1583		2743
1584	my $rmp = { # defaults	2744	my $rmp = { # defaults
1585	xsize => 10,	2745	xsize => (cf::rndm 15, 40),
1586	ysize => 10,	2746	ysize => (cf::rndm 15, 40),
		2747	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2748	#layout => string,
1587	};	2749	};
1588		2750
1589	for (split /\n/, $spec) {	2751	for (split /\n/, $spec) {
1590	my ($k, $v) = split /\s+/, $_, 2;	2752	my ($k, $v) = split /\s+/, $_, 2;
1591		2753
…		…
1603	# that depends on the exit object	2765	# that depends on the exit object
1604		2766
1605	my $rmp = parse_random_map_params $exit->msg;	2767	my $rmp = parse_random_map_params $exit->msg;
1606		2768
1607	if ($exit->map) {	2769	if ($exit->map) {
1608	$rmp->{region} = $exit->map->region_name;	2770	$rmp->{region} = $exit->region->name;
1609	$rmp->{origin_map} = $exit->map->path;	2771	$rmp->{origin_map} = $exit->map->path;
1610	$rmp->{origin_x} = $exit->x;	2772	$rmp->{origin_x} = $exit->x;
1611	$rmp->{origin_y} = $exit->y;	2773	$rmp->{origin_y} = $exit->y;
		2774
		2775	$exit->map->touch;
1612	}	2776	}
1613		2777
1614	$rmp->{random_seed} ||= $exit->random_seed;	2778	$rmp->{random_seed} ||= $exit->random_seed;
1615		2779
1616	my $data = cf::to_json $rmp;	2780	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1617	my $md5 = Digest::MD5::md5_hex $data;	2781	my $md5 = Digest::MD5::md5_hex $data;
		2782	my $meta = "$RANDOMDIR/$md5.meta";
1618		2783
1619	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) {
1620	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;
1621		2788
		2789	my $slaying = "?random/$md5";
		2790
		2791	if ($exit->valid) {
1622	$exit->slaying ("?random/$md5");	2792	$exit->slaying ("?random/$md5");
1623	$exit->msg (undef);	2793	$exit->msg (undef);
		2794	}
1624	}	2795	}
1625	}	2796	}
1626		2797
1627	sub cf::object::player::enter_exit {	2798	sub cf::object::player::enter_exit {
1628	my ($self, $exit) = @_;	2799	my ($self, $exit) = @_;
1629		2800
1630	return unless $self->type == cf::PLAYER;	2801	return unless $self->type == cf::PLAYER;
1631		2802
1632	$self->enter_link;	2803	$self->enter_link;
1633		2804
1634	(Coro::async {	2805	(async {
		2806	$Coro::current->{desc} = "enter_exit";
		2807
1635	unless (eval {	2808	unless (eval {
		2809	$self->deactivate_recursive; # just to be sure
1636		2810
		2811	# random map handling
		2812	{
		2813	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2814
1637	prepare_random_map $exit	2815	prepare_random_map $exit
1638	if $exit->slaying eq "/!";	2816	if $exit->slaying eq "/!";
		2817	}
1639		2818
1640	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;
1641	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2820	my $x = $exit->stats->hp;
		2821	my $y = $exit->stats->sp;
1642		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
1643	1;	2829	1
1644	}) {	2830	}) {
1645	$self->message ("Something went wrong deep within the crossfire server. "	2831	$self->message ("Something went wrong deep within the deliantra server. "
1646	. "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. "
1647	. "Please report this to the dungeon master",	2833	. "Please report this to the dungeon master!",
1648	cf::NDI_UNIQUE | cf::NDI_RED);	2834	cf::NDI_UNIQUE | cf::NDI_RED);
1649		2835
1650	warn "ERROR in enter_exit: $@";	2836	warn "ERROR in enter_exit: $@";
1651	$self->leave_link;	2837	$self->leave_link;
1652	}	2838	}
1653	})->prio (1);	2839	})->prio (1);
…		…
1666		2852
1667	sub cf::client::send_drawinfo {	2853	sub cf::client::send_drawinfo {
1668	my ($self, $text, $flags) = @_;	2854	my ($self, $text, $flags) = @_;
1669		2855
1670	utf8::encode $text;	2856	utf8::encode $text;
1671	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2857	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1672	}	2858	}
1673		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	}
1674		3081
1675	=item $success = $client->query ($flags, "text", \&cb)	3082	=item $success = $client->query ($flags, "text", \&cb)
1676		3083
1677	Queues a query to the client, calling the given callback with	3084	Queues a query to the client, calling the given callback with
1678	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>,
1679	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>.
1680		3087
1681	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
1682	reliable at some point in the future.	3089	become reliable at some point in the future.
1683		3090
1684	=cut	3091	=cut
1685		3092
1686	sub cf::client::query {	3093	sub cf::client::query {
1687	my ($self, $flags, $text, $cb) = @_;	3094	my ($self, $flags, $text, $cb) = @_;
…		…
1695	utf8::encode $text;	3102	utf8::encode $text;
1696	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3103	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1697		3104
1698	$self->send_packet ($self->{query_queue}[0][0])	3105	$self->send_packet ($self->{query_queue}[0][0])
1699	if @{ $self->{query_queue} } == 1;	3106	if @{ $self->{query_queue} } == 1;
		3107
		3108	1
1700	}	3109	}
1701		3110
1702	cf::client->attach (	3111	cf::client->attach (
		3112	on_connect => sub {
		3113	my ($ns) = @_;
		3114
		3115	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3116	},
1703	on_reply => sub {	3117	on_reply => sub {
1704	my ($ns, $msg) = @_;	3118	my ($ns, $msg) = @_;
1705		3119
1706	# this weird shuffling is so that direct followup queries	3120	# this weird shuffling is so that direct followup queries
1707	# get handled first	3121	# get handled first
1708	my $queue = delete $ns->{query_queue};	3122	my $queue = delete $ns->{query_queue}
		3123	or return; # be conservative, not sure how that can happen, but we saw a crash here
1709		3124
1710	(shift @$queue)->[1]->($msg);	3125	(shift @$queue)->[1]->($msg);
		3126	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1711		3127
1712	push @{ $ns->{query_queue} }, @$queue;	3128	push @{ $ns->{query_queue} }, @$queue;
1713		3129
1714	if (@{ $ns->{query_queue} } == @$queue) {	3130	if (@{ $ns->{query_queue} } == @$queue) {
1715	if (@$queue) {	3131	if (@$queue) {
…		…
1717	} else {	3133	} else {
1718	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3134	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1719	}	3135	}
1720	}	3136	}
1721	},	3137	},
		3138	on_exticmd => sub {
		3139	my ($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	},
1722	);	3164	);
1723		3165
1724	=item $client->coro (\&cb)	3166	=item $client->async (\&cb)
1725		3167
1726	Create a new coroutine, running the specified callback. The coroutine will	3168	Create a new coroutine, running the specified callback. The coroutine will
1727	be automatically cancelled when the client gets destroyed (e.g. on logout,	3169	be automatically cancelled when the client gets destroyed (e.g. on logout,
1728	or loss of connection).	3170	or loss of connection).
1729		3171
1730	=cut	3172	=cut
1731		3173
1732	sub cf::client::coro {	3174	sub cf::client::async {
1733	my ($self, $cb) = @_;	3175	my ($self, $cb) = @_;
1734		3176
1735	my $coro; $coro = async {	3177	my $coro = &Coro::async ($cb);
1736	eval {
1737	$cb->();
1738	};
1739	warn $@ if $@;
1740	};
1741		3178
1742	$coro->on_destroy (sub {	3179	$coro->on_destroy (sub {
1743	delete $self->{_coro}{$coro+0};	3180	delete $self->{_coro}{$coro+0};
1744	});	3181	});
1745		3182
…		…
1747		3184
1748	$coro	3185	$coro
1749	}	3186	}
1750		3187
1751	cf::client->attach (	3188	cf::client->attach (
1752	on_destroy => sub {	3189	on_client_destroy => sub {
1753	my ($ns) = @_;	3190	my ($ns) = @_;
1754		3191
1755	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3192	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1756	},	3193	},
1757	);	3194	);
…		…
1772	our $safe = new Safe "safe";	3209	our $safe = new Safe "safe";
1773	our $safe_hole = new Safe::Hole;	3210	our $safe_hole = new Safe::Hole;
1774		3211
1775	$SIG{FPE} = 'IGNORE';	3212	$SIG{FPE} = 'IGNORE';
1776		3213
1777	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3214	$safe->permit_only (Opcode::opset qw(
		3215	:base_core :base_mem :base_orig :base_math :base_loop
		3216	grepstart grepwhile mapstart mapwhile
		3217	sort time
		3218	));
1778		3219
1779	# here we export the classes and methods available to script code	3220	# here we export the classes and methods available to script code
1780		3221
1781	=pod	3222	=pod
1782		3223
1783	The following fucntions and emthods are available within a safe environment:	3224	The following functions and methods are available within a safe environment:
1784		3225
1785	cf::object contr pay_amount pay_player map	3226	cf::object
		3227	contr pay_amount pay_player map x y force_find force_add destroy
		3228	insert remove name archname title slaying race decrease split
		3229	value
		3230
1786	cf::object::player player	3231	cf::object::player
1787	cf::player peaceful	3232	player
1788	cf::map trigger	3233
		3234	cf::player
		3235	peaceful
		3236
		3237	cf::map
		3238	trigger
1789		3239
1790	=cut	3240	=cut
1791		3241
1792	for (	3242	for (
1793	["cf::object" => qw(contr pay_amount pay_player map)],	3243	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3244	insert remove inv nrof name archname title slaying race
		3245	decrease split destroy change_exp value msg lore send_msg)],
1794	["cf::object::player" => qw(player)],	3246	["cf::object::player" => qw(player)],
1795	["cf::player" => qw(peaceful)],	3247	["cf::player" => qw(peaceful send_msg)],
1796	["cf::map" => qw(trigger)],	3248	["cf::map" => qw(trigger)],
1797	) {	3249	) {
1798	no strict 'refs';	3250	no strict 'refs';
1799	my ($pkg, @funs) = @$_;	3251	my ($pkg, @funs) = @$_;
1800	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3252	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1818		3270
1819	my $qcode = $code;	3271	my $qcode = $code;
1820	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3272	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1821	$qcode =~ s/\n/\\n/g;	3273	$qcode =~ s/\n/\\n/g;
1822		3274
		3275	%vars = (_dummy => 0) unless %vars;
		3276
		3277	my @res;
1823	local $_;	3278	local $_;
1824	local @safe::cf::_safe_eval_args = values %vars;
1825		3279
1826	my $eval =	3280	my $eval =
1827	"do {\n"	3281	"do {\n"
1828	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3282	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1829	. "#line 0 \"{$qcode}\"\n"	3283	. "#line 0 \"{$qcode}\"\n"
1830	. $code	3284	. $code
1831	. "\n}"	3285	. "\n}"
1832	;	3286	;
1833		3287
		3288	if ($CFG{safe_eval}) {
1834	sub_generation_inc;	3289	sub_generation_inc;
		3290	local @safe::cf::_safe_eval_args = values %vars;
1835	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3291	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1836	sub_generation_inc;	3292	sub_generation_inc;
		3293	} else {
		3294	local @cf::_safe_eval_args = values %vars;
		3295	@res = wantarray ? eval eval : scalar eval $eval;
		3296	}
1837		3297
1838	if ($@) {	3298	if ($@) {
1839	warn "$@";	3299	warn "$@";
1840	warn "while executing safe code '$code'\n";	3300	warn "while executing safe code '$code'\n";
1841	warn "with arguments " . (join " ", %vars) . "\n";	3301	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1860	=cut	3320	=cut
1861		3321
1862	sub register_script_function {	3322	sub register_script_function {
1863	my ($fun, $cb) = @_;	3323	my ($fun, $cb) = @_;
1864		3324
1865	no strict 'refs';	3325	$fun = "safe::$fun" if $CFG{safe_eval};
1866	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3326	*$fun = $safe_hole->wrap ($cb);
1867	}	3327	}
1868		3328
1869	=back	3329	=back
1870		3330
1871	=cut	3331	=cut
1872		3332
1873	#############################################################################	3333	#############################################################################
		3334	# the server's init and main functions
1874		3335
1875	=head2 EXTENSION DATABASE SUPPORT	3336	sub load_facedata($) {
		3337	my ($path) = @_;
1876		3338
1877	Crossfire maintains a very simple database for extension use. It can	3339	# HACK to clear player env face cache, we need some signal framework
1878	currently store anything that can be serialised using Storable, which	3340	# for this (global event?)
1879	excludes objects.	3341	%ext::player_env::MUSIC_FACE_CACHE = ();
1880		3342
1881	The parameter C<$family> should best start with the name of the extension	3343	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1882	using it, it should be unique.
1883		3344
1884	=over 4	3345	warn "loading facedata from $path\n";
1885		3346
1886	=item $hashref = cf::db_get $family	3347	my $facedata;
		3348	0 < aio_load $path, $facedata
		3349	or die "$path: $!";
1887		3350
1888	Return a hashref for use by the extension C<$family>, which can be	3351	$facedata = Coro::Storable::thaw $facedata;
1889	modified. After modifications, you have to call C<cf::db_dirty> or
1890	C<cf::db_sync>.
1891		3352
1892	=item $value = cf::db_get $family => $key	3353	$facedata->{version} == 2
		3354	or cf::cleanup "$path: version mismatch, cannot proceed.";
1893		3355
1894	Returns a single value from the database	3356	# patch in the exptable
1895		3357	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1896	=item cf::db_put $family => $hashref	3358	$facedata->{resource}{"res/exp_table"} = {
1897		3359	type => FT_RSRC,
1898	Stores the given family hashref into the database. Updates are delayed, if	3360	data => $exp_table,
1899	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3361	hash => (Digest::MD5::md5 $exp_table),
1900
1901	=item cf::db_put $family => $key => $value
1902
1903	Stores the given C<$value> in the family hash. Updates are delayed, if you
1904	want the data to be synced to disk immediately, use C<cf::db_sync>.
1905
1906	=item cf::db_dirty
1907
1908	Marks the database as dirty, to be updated at a later time.
1909
1910	=item cf::db_sync
1911
1912	Immediately write the database to disk I<if it is dirty>.
1913
1914	=cut
1915
1916	our $DB;
1917
1918	{
1919	my $path = cf::localdir . "/database.pst";
1920
1921	sub db_load() {
1922	$DB = stat $path ? Storable::retrieve $path : { };
1923	}
1924
1925	my $pid;
1926
1927	sub db_save() {
1928	waitpid $pid, 0 if $pid;
1929	if (0 == ($pid = fork)) {
1930	$DB->{_meta}{version} = 1;
1931	Storable::nstore $DB, "$path~";
1932	rename "$path~", $path;
1933	cf::_exit 0 if defined $pid;
1934	}
1935	}
1936
1937	my $dirty;
1938
1939	sub db_sync() {
1940	db_save if $dirty;
1941	undef $dirty;
1942	}
1943
1944	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1945	db_sync;
1946	});	3362	};
		3363	cf::cede_to_tick;
1947		3364
1948	sub db_dirty() {
1949	$dirty = 1;
1950	$idle->start;
1951	}	3365	{
		3366	my $faces = $facedata->{faceinfo};
1952		3367
1953	sub db_get($;$) {	3368	while (my ($face, $info) = each %$faces) {
1954	@_ >= 2	3369	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1955	? $DB->{$_[0]}{$_[1]}
1956	: ($DB->{$_[0]} ||= { })
1957	}
1958		3370
1959	sub db_put($$;$) {	3371	cf::face::set_visibility $idx, $info->{visibility};
1960	if (@_ >= 3) {	3372	cf::face::set_magicmap $idx, $info->{magicmap};
1961	$DB->{$_[0]}{$_[1]} = $_[2];	3373	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1962	} else {	3374	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1963	$DB->{$_[0]} = $_[1];
1964	}
1965	db_dirty;
1966	}
1967		3375
1968	cf::global->attach (	3376	cf::cede_to_tick;
1969	prio => 10000,
1970	on_cleanup => sub {
1971	db_sync;
1972	},	3377	}
1973	);
1974	}
1975		3378
1976	#############################################################################	3379	while (my ($face, $info) = each %$faces) {
1977	# the server's main()	3380	next unless $info->{smooth};
1978		3381
1979	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
1980	open my $fh, "<:utf8", cf::confdir . "/config"	3510	open my $fh, "<:utf8", "$CONFDIR/config"
1981	or return;	3511	or return;
1982		3512
1983	local $/;	3513	local $/;
1984	*CFG = YAML::Syck::Load <$fh>;	3514	*CFG = YAML::XS::Load scalar <$fh>;
		3515
		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};
		3520
		3521	if (exists $CFG{mlockall}) {
		3522	eval {
		3523	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3524	and die "WARNING: m(un)lockall failed: $!\n";
		3525	};
		3526	warn $@ if $@;
		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;
1985	}	3558	}
1986		3559
1987	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
1988	# we must not ever block the main coroutine	3570	# we must not ever block the main coroutine
1989	local $Coro::idle = sub {	3571	local $Coro::idle = sub {
1990	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#
1991	(Coro::unblock_sub {	3573	(async {
1992	Event::one_event;	3574	$Coro::current->{desc} = "IDLE BUG HANDLER";
1993	})->();	3575	EV::loop EV::LOOP_ONESHOT;
		3576	})->prio (Coro::PRIO_MAX);
1994	};	3577	};
1995		3578
1996	cfg_load;	3579	evthread_start IO::AIO::poll_fileno;
1997	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
1998	load_extensions;	3602	load_extensions;
1999	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;
2000	}	3617	}
2001		3618
2002	#############################################################################	3619	#############################################################################
2003	# initialisation	3620	# initialisation and cleanup
2004		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
2005	sub reload() {	3803	sub do_reload_perl() {
2006	# can/must only be called in main	3804	# can/must only be called in main
2007	if ($Coro::current != $Coro::main) {	3805	if (in_main) {
2008	warn "can only reload from main coroutine\n";	3806	warn "can only reload from main coroutine";
2009	return;	3807	return;
2010	}	3808	}
2011		3809
		3810	return if $RELOAD++;
		3811
		3812	my $t1 = AE::time;
		3813
		3814	while ($RELOAD) {
2012	warn "reloading...";	3815	warn "reloading...";
2013		3816
2014	local $FREEZE = 1;	3817	warn "entering sync_job";
		3818
		3819	cf::sync_job {
		3820	cf::write_runtime_sync; # external watchdog should not bark
2015	cf::emergency_save;	3821	cf::emergency_save;
		3822	cf::write_runtime_sync; # external watchdog should not bark
2016		3823
2017	eval {	3824	warn "syncing database to disk";
		3825	BDB::db_env_txn_checkpoint $DB_ENV;
		3826
2018	# 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
2019		3828
2020	# cancel all watchers	3829	warn "flushing outstanding aio requests";
2021	for (Event::all_watchers) {	3830	while (IO::AIO::nreqs || BDB::nreqs) {
2022	$_->cancel if $_->data & WF_AUTOCANCEL;	3831	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2023	}
2024
2025	# cancel all extension coros
2026	$_->cancel for values %EXT_CORO;
2027	%EXT_CORO = ();
2028
2029	# unload all extensions
2030	for (@exts) {
2031	warn "unloading <$_>";
2032	unload_extension $_;
2033	}
2034
2035	# unload all modules loaded from $LIBDIR
2036	while (my ($k, $v) = each %INC) {
2037	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2038
2039	warn "removing <$k>";
2040	delete $INC{$k};
2041
2042	$k =~ s/\.pm$//;
2043	$k =~ s/\//::/g;
2044
2045	if (my $cb = $k->can ("unload_module")) {
2046	$cb->();
2047	}	3832	}
2048		3833
2049	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;
2050	}	3858	}
2051		3859
2052	# sync database to disk	3860	warn "unloading all perl modules loaded from $LIBDIR";
2053	cf::db_sync;	3861	while (my ($k, $v) = each %INC) {
2054	IO::AIO::flush;	3862	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		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 $k;
		3875	}
		3876
2056	# get rid of safe::, as good as possible	3877	warn "getting rid of safe::, as good as possible";
2057	Symbol::delete_package "safe::$_"	3878	clear_package "safe::$_"
2058	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);
2059		3880
2060	# remove register_script_function callbacks	3881	warn "unloading cf.pm \"a bit\"";
2061	# TODO
2062
2063	# unload cf.pm "a bit"
2064	delete $INC{"cf.pm"};	3882	delete $INC{"cf.pm"};
		3883	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2065		3884
2066	# don't, removes xs symbols, too,	3885	# don't, removes xs symbols, too,
2067	# and global variables created in xs	3886	# and global variables created in xs
2068	#Symbol::delete_package __PACKAGE__;	3887	#clear_package __PACKAGE__;
2069		3888
2070	# reload cf.pm	3889	warn "unload completed, starting to reload now";
		3890
2071	warn "reloading cf.pm";	3891	warn "reloading cf.pm";
2072	require cf;	3892	require cf;
2073	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3893	cf::_connect_to_perl_1;
2074		3894
2075	# load config and database again	3895	warn "loading config and database again";
2076	cf::cfg_load;	3896	cf::reload_config;
2077	cf::db_load;
2078		3897
2079	# load extensions
2080	warn "load extensions";	3898	warn "loading extensions";
2081	cf::load_extensions;	3899	cf::load_extensions;
2082		3900
2083	# 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 $@;
		3918	cf::cleanup "error while reloading, exiting.";
		3919	};
		3920
2084	warn "reattach";	3921	warn "reloaded";
2085	_global_reattach;	3922	--$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 $RELOAD_WATCHER;
		3941	};
2086	};	3942	};
2087
2088	if ($@) {
2089	warn $@;
2090	warn "error while reloading, exiting.";
2091	exit 1;
2092	}
2093
2094	warn "reloaded successfully";
2095	};
2096
2097	#############################################################################
2098
2099	unless ($LINK_MAP) {
2100	$LINK_MAP = cf::map::new;
2101
2102	$LINK_MAP->width (41);
2103	$LINK_MAP->height (41);
2104	$LINK_MAP->alloc;
2105	$LINK_MAP->path ("{link}");
2106	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2107	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2108
2109	# dirty hack because... archetypes are not yet loaded
2110	Event->timer (
2111	after => 2,
2112	cb => sub {
2113	$_[0]->w->cancel;
2114
2115	# provide some exits "home"
2116	my $exit = cf::object::new "exit";
2117
2118	$exit->slaying ($EMERGENCY_POSITION->[0]);
2119	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2120	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2121
2122	$LINK_MAP->insert ($exit->clone, 19, 19);
2123	$LINK_MAP->insert ($exit->clone, 19, 20);
2124	$LINK_MAP->insert ($exit->clone, 19, 21);
2125	$LINK_MAP->insert ($exit->clone, 20, 19);
2126	$LINK_MAP->insert ($exit->clone, 20, 21);
2127	$LINK_MAP->insert ($exit->clone, 21, 19);
2128	$LINK_MAP->insert ($exit->clone, 21, 20);
2129	$LINK_MAP->insert ($exit->clone, 21, 21);
2130
2131	$exit->destroy;
2132	});
2133
2134	$LINK_MAP->{deny_save} = 1;
2135	$LINK_MAP->{deny_reset} = 1;
2136
2137	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2138	}	3943	}
2139
2140	register "<global>", __PACKAGE__;
2141		3944
2142	register_command "reload" => sub {	3945	register_command "reload" => sub {
2143	my ($who, $arg) = @_;	3946	my ($who, $arg) = @_;
2144		3947
2145	if ($who->flag (FLAG_WIZ)) {	3948	if ($who->flag (FLAG_WIZ)) {
2146	$who->message ("start of reload.");
2147	reload;
2148	$who->message ("end of reload.");	3949	$who->message ("reloading server.");
		3950	async {
		3951	$Coro::current->{desc} = "perl_reload";
		3952	reload_perl;
		3953	};
2149	}	3954	}
2150	};	3955	};
2151		3956
2152	unshift @INC, $LIBDIR;	3957	unshift @INC, $LIBDIR;
2153		3958
2154	$TICK_WATCHER = Event->timer (	3959	my $bug_warning = 0;
2155	reentrant => 0,	3960
2156	prio => 0,	3961	our @WAIT_FOR_TICK;
2157	at => $NEXT_TICK || $TICK,	3962	our @WAIT_FOR_TICK_BEGIN;
2158	data => WF_AUTOCANCEL,	3963
2159	cb => sub {	3964	sub wait_for_tick {
2160	unless ($FREEZE) {	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
2161	cf::server_tick; # one server iteration	3987	cf::server_tick; # one server iteration
2162	$RUNTIME += $TICK;
2163	}
2164		3988
2165	$NEXT_TICK += $TICK;	3989	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2166		3990
2167	# if we are delayed by four ticks or more, skip them all	3991	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2168	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3992	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2169		3993	Coro::async_pool {
2170	$TICK_WATCHER->at ($NEXT_TICK);	3994	$Coro::current->{desc} = "runtime saver";
2171	$TICK_WATCHER->start;
2172	},
2173	);
2174
2175	IO::AIO::max_poll_time $TICK * 0.2;
2176
2177	Event->io (
2178	fd => IO::AIO::poll_fileno,
2179	poll => 'r',
2180	prio => 5,
2181	data => WF_AUTOCANCEL,
2182	cb => \&IO::AIO::poll_cb,
2183	);
2184
2185	Event->timer (
2186	data => WF_AUTOCANCEL,
2187	after => 0,
2188	interval => 10,
2189	cb => sub {
2190	(Coro::unblock_sub {
2191	write_runtime	3995	write_runtime_sync
2192	or warn "ERROR: unable to write runtime file: $!";	3996	or warn "ERROR: unable to write runtime file: $!";
2193	})->();	3997	};
2194	},	3998	}
2195	);	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;
2196		4114
2197	END { cf::emergency_save }	4115	END { cf::emergency_save }
2198		4116
2199	1	4117	1
2200		4118

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