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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.113 by root, Mon Jan 1 15:32:40 2007 UTC vs.
Revision 1.549 by root, Tue May 11 13:19:59 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3;	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
20	use Digest::MD5;	53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
21	use Fcntl;	56	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
24	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
25		62
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		69
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		78
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE; # unused
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	121	our $NEXT_TICK;
45	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript incloader);
46		130
47	our %CFG;	131	our %CFG;
48		132
49	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
51		136
52	our %MAP; # all maps	137	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	138	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	139	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	140
56	our %EXT_CORO;	141	# used to convert map paths into valid unix filenames by replacing / by ∕
		142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
57		153
58	binmode STDOUT;	154	binmode STDOUT;
59	binmode STDERR;	155	binmode STDERR;
60		156
61	# read virtual server time, if available	157	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
66	}	162	}
67		163
68	mkdir cf::localdir;	164	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		165
74	# a special map that is always available	166	mkdir $_
75	our $LINK_MAP;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		168
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	169	our $EMERGENCY_POSITION;
		170
		171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
78		187
79	#############################################################################	188	#############################################################################
80		189
81	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
82		191
…		…
89	=item $cf::RUNTIME	198	=item $cf::RUNTIME
90		199
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	201	every server tick.
93		202
94	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		206
96	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
98		211
99	=item $cf::NOW	212	=item $cf::NOW
100		213
101	The time of the last (current) server tick.	214	The time of the last (current) server tick.
102		215
103	=item $cf::TICK	216	=item $cf::TICK
104		217
105	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
106		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
107	=item %cf::CFG	230	=item %cf::CFG
108		231
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	233	from wherever your confdir points to.
111		234
		235	=item cf::wait_for_tick, cf::wait_for_tick_begin
		236
		237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		238	returns directly I<after> the tick processing (and consequently, can only wake one thread
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=cut
		242
		243	sub wait_for_tick();
		244	sub wait_for_tick_begin();
		245
		246	=item @cf::INVOKE_RESULTS
		247
		248	This array contains the results of the last C<invoke ()> call. When
		249	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		250	that call.
		251
		252	=item %cf::REFLECT
		253
		254	Contains, for each (C++) class name, a hash reference with information
		255	about object members (methods, scalars, arrays and flags) and other
		256	metadata, which is useful for introspection.
		257
112	=back	258	=back
113		259
114	=cut	260	=cut
115		261
116	BEGIN {	262	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	263	sub warn (@) { LOG llevWarn , join "", @_ }
		264	sub info (@) { LOG llevInfo , join "", @_ }
		265	sub debug(@) { LOG llevDebug, join "", @_ }
		266	sub trace(@) { LOG llevTrace, join "", @_ }
		267
		268	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	269	my $msg = join "", @_;
119	utf8::encode $msg;
120		270
121	$msg .= "\n"	271	$msg .= "\n"
122	unless $msg =~ /\n$/;	272	unless $msg =~ /\n$/;
123		273
124	LOG llevError, "cfperl: $msg";	274	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	275
126	}	276	LOG llevWarn, $msg;
		277	};
		278
		279	$Coro::State::DIEHOOK = sub {
		280	return unless $^S eq 0; # "eq", not "=="
		281
		282	error Carp::longmess $_[0];
		283
		284	if (in_main) {#d#
		285	error "DIEHOOK called in main context, Coro bug?\n";#d#
		286	return;#d#
		287	}#d#
		288
		289	# kill coroutine otherwise
		290	Coro::terminate
		291	};
127		292
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	293	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	294	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	295	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	296	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	297	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		298	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	299	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		300
135	# we bless all objects into (empty) derived classes to force a method lookup	301	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	302	# within the Safe compartment.
137	for my $pkg (qw(	303	for my $pkg (qw(
138	cf::global cf::attachable	304	cf::global cf::attachable
139	cf::object cf::object::player	305	cf::object cf::object::player
140	cf::client cf::player	306	cf::client cf::player
141	cf::arch cf::living	307	cf::arch cf::living
		308	cf::map cf::mapspace
142	cf::map cf::party cf::region	309	cf::party cf::region
143	)) {	310	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	311	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	312	}
147		313
148	$Event::DIED = sub {	314	$EV::DIED = sub {
149	warn "error in event callback: @_";	315	Carp::cluck "error in event callback: @_";
150	};	316	};
151		317
152	my %ext_pkg;	318	#############################################################################
153	my @exts;
154	my @hook;
155		319
156	=head2 UTILITY FUNCTIONS	320	=head2 UTILITY FUNCTIONS
157		321
158	=over 4	322	=over 4
159		323
160	=cut	324	=item dumpval $ref
161		325
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	326	=cut
163		327
		328	sub dumpval {
		329	eval {
		330	local $SIG{__DIE__};
		331	my $d;
		332	if (1) {
		333	$d = new Data::Dumper([$_[0]], ["*var"]);
		334	$d->Terse(1);
		335	$d->Indent(2);
		336	$d->Quotekeys(0);
		337	$d->Useqq(1);
		338	#$d->Bless(...);
		339	$d->Seen($_[1]) if @_ > 1;
		340	$d = $d->Dump();
		341	}
		342	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		343	$d
		344	} || "[unable to dump $_[0]: '$@']";
		345	}
		346
164	=item $ref = cf::from_json $json	347	=item $ref = cf::decode_json $json
165		348
166	Converts a JSON string into the corresponding perl data structure.	349	Converts a JSON string into the corresponding perl data structure.
167		350
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	351	=item $json = cf::encode_json $ref
176		352
177	Converts a perl data structure into its JSON representation.	353	Converts a perl data structure into its JSON representation.
178		354
179	=cut	355	=cut
180		356
181	sub to_json($) {	357	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	358
183	JSON::Syck::Dump $_[0]	359	sub encode_json($) { $json_coder->encode ($_[0]) }
		360	sub decode_json($) { $json_coder->decode ($_[0]) }
		361
		362	=item $ref = cf::yaml_load $scalar
		363
		364	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		365
		366	=cut
		367
		368	sub fork_call(&@);
		369
		370	sub yaml_load($) {
		371	fork_call { YAML::XS::Load $_[0] } @_
184	}	372	}
		373
		374	=item cf::post_init { BLOCK }
		375
		376	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		377	but I<before> the server starts ticking again.
		378
		379	The codeblock will have a single boolean argument to indicate whether this
		380	is a reload or not.
		381
		382	=cut
		383
		384	sub post_init(&) {
		385	push @POST_INIT, shift;
		386	}
		387
		388	=item cf::lock_wait $string
		389
		390	Wait until the given lock is available. See cf::lock_acquire.
		391
		392	=item my $lock = cf::lock_acquire $string
		393
		394	Wait until the given lock is available and then acquires it and returns
		395	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		396	for example when the coroutine gets canceled), the lock is automatically
		397	returned.
		398
		399	Locks are *not* recursive, locking from the same coro twice results in a
		400	deadlocked coro.
		401
		402	Lock names should begin with a unique identifier (for example, cf::map::find
		403	uses map_find and cf::map::load uses map_load).
		404
		405	=item $locked = cf::lock_active $string
		406
		407	Return true if the lock is currently active, i.e. somebody has locked it.
		408
		409	=cut
		410
		411	our $LOCKS = new Coro::SemaphoreSet;
		412
		413	sub lock_wait($) {
		414	$LOCKS->wait ($_[0]);
		415	}
		416
		417	sub lock_acquire($) {
		418	$LOCKS->guard ($_[0])
		419	}
		420
		421	sub lock_active($) {
		422	$LOCKS->count ($_[0]) < 1
		423	}
		424
		425	sub freeze_mainloop {
		426	tick_inhibit_inc;
		427
		428	&Guard::guard (\&tick_inhibit_dec);
		429	}
		430
		431	=item cf::periodic $interval, $cb
		432
		433	Like EV::periodic, but randomly selects a starting point so that the actions
		434	get spread over time.
		435
		436	=cut
		437
		438	sub periodic($$) {
		439	my ($interval, $cb) = @_;
		440
		441	my $start = rand List::Util::min 180, $interval;
		442
		443	EV::periodic $start, $interval, 0, $cb
		444	}
		445
		446	=item cf::get_slot $time[, $priority[, $name]]
		447
		448	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		449	This call blocks and returns only when you have at least C<$time> seconds
		450	of cpu time till the next tick. The slot is only valid till the next cede.
		451
		452	The optional C<$name> can be used to identify the job to run. It might be
		453	used for statistical purposes and should identify the same time-class.
		454
		455	Useful for short background jobs.
		456
		457	=cut
		458
		459	our @SLOT_QUEUE;
		460	our $SLOT_QUEUE;
		461	our $SLOT_DECAY = 0.9;
		462
		463	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		464	$SLOT_QUEUE = Coro::async {
		465	$Coro::current->desc ("timeslot manager");
		466
		467	my $signal = new Coro::Signal;
		468	my $busy;
		469
		470	while () {
		471	next_job:
		472
		473	my $avail = cf::till_tick;
		474
		475	for (0 .. $#SLOT_QUEUE) {
		476	if ($SLOT_QUEUE[$_][0] <= $avail) {
		477	$busy = 0;
		478	my $job = splice @SLOT_QUEUE, $_, 1, ();
		479	$job->[2]->send;
		480	Coro::cede;
		481	goto next_job;
		482	} else {
		483	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		484	}
		485	}
		486
		487	if (@SLOT_QUEUE) {
		488	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		489	push @cf::WAIT_FOR_TICK, $signal;
		490	$signal->wait;
		491	} else {
		492	$busy = 0;
		493	Coro::schedule;
		494	}
		495	}
		496	};
		497
		498	sub get_slot($;$$) {
		499	return if tick_inhibit || $Coro::current == $Coro::main;
		500
		501	my ($time, $pri, $name) = @_;
		502
		503	$time = clamp $time, 0.01, $TICK * .6;
		504
		505	my $sig = new Coro::Signal;
		506
		507	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		508	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		509	$SLOT_QUEUE->ready;
		510	$sig->wait;
		511	}
		512
		513	=item cf::async { BLOCK }
		514
		515	Currently the same as Coro::async_pool, meaning you cannot use
		516	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		517	thing you are allowed to do is call C<prio> on it.
		518
		519	=cut
		520
		521	BEGIN { *async = \&Coro::async_pool }
185		522
186	=item cf::sync_job { BLOCK }	523	=item cf::sync_job { BLOCK }
187		524
188	The design of crossfire+ requires that the main coro ($Coro::main) is	525	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	526	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	527	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		528	acceptable.
191		529
192	If it must be done, put the blocking parts into C<sync_job>. This will run	530	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	531	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	532	server will be frozen during this time, so the block should either finish
195	fast or be very important.	533	fast or be very important.
…		…
197	=cut	535	=cut
198		536
199	sub sync_job(&) {	537	sub sync_job(&) {
200	my ($job) = @_;	538	my ($job) = @_;
201		539
202	if ($Coro::current == $Coro::main) {	540	if (in_main) {
		541	my $time = AE::time;
		542
203	# this is the main coro, too bad, we have to block	543	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	544	# till the operation succeeds, freezing the server :/
205		545
206	# TODO: use suspend/resume instead	546	#LOG llevError, Carp::longmess "sync job";#d#
207	# (but this is cancel-safe)	547
208	local $FREEZE = 1;	548	my $freeze_guard = freeze_mainloop;
209		549
210	my $busy = 1;	550	my $busy = 1;
211	my @res;	551	my @res;
212		552
213	(Coro::async {	553	(async {
		554	$Coro::current->desc ("sync job coro");
214	@res = eval { $job->() };	555	@res = eval { $job->() };
215	warn $@ if $@;	556	error $@ if $@;
216	undef $busy;	557	undef $busy;
217	})->prio (Coro::PRIO_MAX);	558	})->prio (Coro::PRIO_MAX);
218		559
219	while ($busy) {	560	while ($busy) {
		561	if (Coro::nready) {
220	Coro::cede_notself;	562	Coro::cede_notself;
221	Event::one_event unless Coro::nready;	563	} else {
		564	EV::loop EV::LOOP_ONESHOT;
222	}	565	}
		566	}
		567
		568	my $time = AE::time - $time;
		569
		570	$TICK_START += $time; # do not account sync jobs to server load
223		571
224	wantarray ? @res : $res[0]	572	wantarray ? @res : $res[0]
225	} else {	573	} else {
226	# we are in another coroutine, how wonderful, everything just works	574	# we are in another coroutine, how wonderful, everything just works
227		575
228	$job->()	576	$job->()
229	}	577	}
230	}	578	}
231		579
232	=item $coro = cf::coro { BLOCK }	580	=item $coro = cf::async_ext { BLOCK }
233		581
234	Creates and returns a new coro. This coro is automcatially being canceled	582	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	583	extension calling this is being unloaded.
236		584
237	=cut	585	=cut
238		586
239	sub coro(&) {	587	sub async_ext(&) {
240	my $cb = shift;	588	my $cb = shift;
241		589
242	my $coro; $coro = async {	590	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		591
249	$coro->on_destroy (sub {	592	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	593	delete $EXT_CORO{$coro+0};
251	});	594	});
252	$EXT_CORO{$coro+0} = $coro;	595	$EXT_CORO{$coro+0} = $coro;
253		596
254	$coro	597	$coro
255	}	598	}
256		599
257	sub write_runtime {	600	=item fork_call { }, @args
258	my $runtime = cf::localdir . "/runtime";
259		601
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	602	Executes the given code block with the given arguments in a seperate
261	or return;	603	process, returning the results. Everything must be serialisable with
		604	Coro::Storable. May, of course, block. Note that the executed sub may
		605	never block itself or use any form of event handling.
262		606
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	607	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		608
267	aio_fsync $fh	609	sub post_fork {
268	and return;	610	reset_signals;
		611	}
269		612
270	close $fh	613	sub fork_call(&@) {
271	or return;	614	my ($cb, @args) = @_;
272		615
273	aio_rename "$runtime~", $runtime	616	# we seemingly have to make a local copy of the whole thing,
274	and return;	617	# otherwise perl prematurely frees the stuff :/
		618	# TODO: investigate and fix (likely this will be rather laborious)
275		619
		620	my @res = Coro::Util::fork_eval {
		621	cf::post_fork;
		622	&$cb
		623	} @args;
		624
		625	wantarray ? @res : $res[-1]
		626	}
		627
		628	sub objinfo {
276	1	629	(
		630	"counter value" => cf::object::object_count,
		631	"objects created" => cf::object::create_count,
		632	"objects destroyed" => cf::object::destroy_count,
		633	"freelist size" => cf::object::free_count,
		634	"allocated objects" => cf::object::objects_size,
		635	"active objects" => cf::object::actives_size,
		636	)
		637	}
		638
		639	=item $coin = coin_from_name $name
		640
		641	=cut
		642
		643	our %coin_alias = (
		644	"silver" => "silvercoin",
		645	"silvercoin" => "silvercoin",
		646	"silvercoins" => "silvercoin",
		647	"gold" => "goldcoin",
		648	"goldcoin" => "goldcoin",
		649	"goldcoins" => "goldcoin",
		650	"platinum" => "platinacoin",
		651	"platinumcoin" => "platinacoin",
		652	"platinumcoins" => "platinacoin",
		653	"platina" => "platinacoin",
		654	"platinacoin" => "platinacoin",
		655	"platinacoins" => "platinacoin",
		656	"royalty" => "royalty",
		657	"royalties" => "royalty",
		658	);
		659
		660	sub coin_from_name($) {
		661	$coin_alias{$_[0]}
		662	? cf::arch::find $coin_alias{$_[0]}
		663	: undef
		664	}
		665
		666	=item $value = cf::db_get $family => $key
		667
		668	Returns a single value from the environment database.
		669
		670	=item cf::db_put $family => $key => $value
		671
		672	Stores the given C<$value> in the family. It can currently store binary
		673	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		674
		675	=item $db = cf::db_table "name"
		676
		677	Create and/or open a new database table. The string must not be "db" and must be unique
		678	within each server.
		679
		680	=cut
		681
		682	sub db_table($) {
		683	cf::error "db_get called from main context"
		684	if $Coro::current == $Coro::main;
		685
		686	my ($name) = @_;
		687	my $db = BDB::db_create $DB_ENV;
		688
		689	eval {
		690	$db->set_flags (BDB::CHKSUM);
		691
		692	utf8::encode $name;
		693	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		694	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		695	cf::cleanup "db_open(db): $!" if $!;
		696	};
		697	cf::cleanup "db_open(db): $@" if $@;
		698
		699	$db
		700	}
		701
		702	our $DB;
		703
		704	sub db_init {
		705	$DB ||= db_table "db";
		706	}
		707
		708	sub db_get($$) {
		709	my $key = "$_[0]/$_[1]";
		710
		711	cf::error "db_get called from main context"
		712	if $Coro::current == $Coro::main;
		713
		714	BDB::db_get $DB, undef, $key, my $data;
		715
		716	$! ? ()
		717	: $data
		718	}
		719
		720	sub db_put($$$) {
		721	BDB::dbreq_pri 4;
		722	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		723	}
		724
		725	=item cf::cache $id => [$paths...], $processversion => $process
		726
		727	Generic caching function that returns the value of the resource $id,
		728	caching and regenerating as required.
		729
		730	This function can block.
		731
		732	=cut
		733
		734	sub cache {
		735	my ($id, $src, $processversion, $process) = @_;
		736
		737	my $meta =
		738	join "\x00",
		739	$processversion,
		740	map {
		741	aio_stat $_
		742	and Carp::croak "$_: $!";
		743
		744	($_, (stat _)[7,9])
		745	} @$src;
		746
		747	my $dbmeta = db_get cache => "$id/meta";
		748	if ($dbmeta ne $meta) {
		749	# changed, we may need to process
		750
		751	my @data;
		752	my $md5;
		753
		754	for (0 .. $#$src) {
		755	0 <= aio_load $src->[$_], $data[$_]
		756	or Carp::croak "$src->[$_]: $!";
		757	}
		758
		759	# if processing is expensive, check
		760	# checksum first
		761	if (1) {
		762	$md5 =
		763	join "\x00",
		764	$processversion,
		765	map {
		766	cf::cede_to_tick;
		767	($src->[$_], Digest::MD5::md5_hex $data[$_])
		768	} 0.. $#$src;
		769
		770
		771	my $dbmd5 = db_get cache => "$id/md5";
		772	if ($dbmd5 eq $md5) {
		773	db_put cache => "$id/meta", $meta;
		774
		775	return db_get cache => "$id/data";
		776	}
		777	}
		778
		779	my $t1 = Time::HiRes::time;
		780	my $data = $process->(\@data);
		781	my $t2 = Time::HiRes::time;
		782
		783	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		784
		785	db_put cache => "$id/data", $data;
		786	db_put cache => "$id/md5" , $md5;
		787	db_put cache => "$id/meta", $meta;
		788
		789	return $data;
		790	}
		791
		792	db_get cache => "$id/data"
		793	}
		794
		795	=item cf::datalog type => key => value, ...
		796
		797	Log a datalog packet of the given type with the given key-value pairs.
		798
		799	=cut
		800
		801	sub datalog($@) {
		802	my ($type, %kv) = @_;
		803	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	804	}
278		805
279	=back	806	=back
280		807
281	=cut	808	=cut
282		809
283	#############################################################################	810	#############################################################################
284		811
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392
393	#############################################################################
394
395	=head2 ATTACHABLE OBJECTS	812	=head2 ATTACHABLE OBJECTS
396		813
397	Many objects in crossfire are so-called attachable objects. That means you can	814	Many objects in deliantra are so-called attachable objects. That means you can
398	attach callbacks/event handlers (a collection of which is called an "attachment")	815	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	816	to it. All such attachable objects support the following methods.
400		817
401	In the following description, CLASS can be any of C<global>, C<object>	818	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	819	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	820	Deliantra).
404		821
405	=over 4	822	=over 4
406		823
407	=item $attachable->attach ($attachment, key => $value...)	824	=item $attachable->attach ($attachment, key => $value...)
408		825
…		…
452	=item cf::CLASS::attachment $name, ...	869	=item cf::CLASS::attachment $name, ...
453		870
454	Register an attachment by C<$name> through which attachable objects of the	871	Register an attachment by C<$name> through which attachable objects of the
455	given CLASS can refer to this attachment.	872	given CLASS can refer to this attachment.
456		873
457	Some classes such as crossfire maps and objects can specify attachments	874	Some classes such as deliantra maps and objects can specify attachments
458	that are attached at load/instantiate time, thus the need for a name.	875	that are attached at load/instantiate time, thus the need for a name.
459		876
460	These calls expect any number of the following handler/hook descriptions:	877	These calls expect any number of the following handler/hook descriptions:
461		878
462	=over 4	879	=over 4
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	939	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	940	our @CB_MAP = ();
524		941
525	my %attachment;	942	my %attachment;
526		943
		944	sub cf::attachable::thawer_merge {
		945	# simply override everything except _meta
		946	local $_[0]{_meta};
		947	%{$_[0]} = %{$_[1]};
		948	}
		949
527	sub _attach_cb($$$$) {	950	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	951	my ($registry, $event, $prio, $cb) = @_;
529		952
530	use sort 'stable';	953	use sort 'stable';
531		954
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	988	$registry = $CB_TYPE[$object_type] ||= [];
566		989
567	} elsif ($type eq "subtype") {	990	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	991	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	992	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	993	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		994
572	} elsif ($type eq "package") {	995	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	996	my $pkg = shift @arg;
574		997
575	while (my ($name, $id) = each %cb_id) {	998	while (my ($name, $id) = each %cb_id) {
…		…
580		1003
581	} elsif (exists $cb_id{$type}) {	1004	} elsif (exists $cb_id{$type}) {
582	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1005	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
583		1006
584	} elsif (ref $type) {	1007	} elsif (ref $type) {
585	warn "attaching objects not supported, ignoring.\n";	1008	error "attaching objects not supported, ignoring.\n";
586		1009
587	} else {	1010	} else {
588	shift @arg;	1011	shift @arg;
589	warn "attach argument '$type' not supported, ignoring.\n";	1012	error "attach argument '$type' not supported, ignoring.\n";
590	}	1013	}
591	}	1014	}
592	}	1015	}
593		1016
594	sub _object_attach {	1017	sub _object_attach {
…		…
604	_attach $registry, $klass, @attach;	1027	_attach $registry, $klass, @attach;
605	}	1028	}
606		1029
607	$obj->{$name} = \%arg;	1030	$obj->{$name} = \%arg;
608	} else {	1031	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	1032	info "object uses attachment '$name' which is not available, postponing.\n";
610	}	1033	}
611		1034
612	$obj->{_attachment}{$name} = undef;	1035	$obj->{_attachment}{$name} = undef;
613	}	1036	}
614		1037
…		…
616	if (ref $_[0]) {	1039	if (ref $_[0]) {
617	_object_attach @_;	1040	_object_attach @_;
618	} else {	1041	} else {
619	_attach shift->_attach_registry, @_;	1042	_attach shift->_attach_registry, @_;
620	}	1043	}
		1044	_recalc_want;
621	};	1045	};
622		1046
623	# all those should be optimised	1047	# all those should be optimised
624	sub cf::attachable::detach {	1048	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	1049	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	1052	delete $obj->{_attachment}{$name};
629	reattach ($obj);	1053	reattach ($obj);
630	} else {	1054	} else {
631	Carp::croak "cannot, currently, detach class attachments";	1055	Carp::croak "cannot, currently, detach class attachments";
632	}	1056	}
		1057	_recalc_want;
633	};	1058	};
634		1059
635	sub cf::attachable::attached {	1060	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	1061	my ($obj, $name) = @_;
637		1062
…		…
652	";	1077	";
653	die if $@;	1078	die if $@;
654	}	1079	}
655		1080
656	our $override;	1081	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1082	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		1083
659	sub override {	1084	sub override {
660	$override = 1;	1085	$override = 1;
661	@invoke_results = ();	1086	@INVOKE_RESULTS = (@_);
662	}	1087	}
663		1088
664	sub do_invoke {	1089	sub do_invoke {
665	my $event = shift;	1090	my $event = shift;
666	my $callbacks = shift;	1091	my $callbacks = shift;
667		1092
668	@invoke_results = ();	1093	@INVOKE_RESULTS = ();
669		1094
670	local $override;	1095	local $override;
671		1096
672	for (@$callbacks) {	1097	for (@$callbacks) {
673	eval { &{$_->[1]} };	1098	eval { &{$_->[1]} };
674		1099
675	if ($@) {	1100	if ($@) {
676	warn "$@";
677	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1101	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
678	override;	1102	override;
679	}	1103	}
680		1104
681	return 1 if $override;	1105	return 1 if $override;
682	}	1106	}
683		1107
684	0	1108	0
685	}	1109	}
686		1110
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1111	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1112
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1113	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1114
691	Generate an object-specific event with the given arguments.	1115	Generate an object-specific event with the given arguments.
692		1116
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1117	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
694	removed in future versions), and there is no public API to access override	1118	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	1119	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1120
697	=back	1121	=back
698		1122
699	=cut	1123	=cut
700		1124
701	#############################################################################	1125	#############################################################################
702	# object support	1126	# object support
		1127
		1128	sub _object_equal($$);
		1129	sub _object_equal($$) {
		1130	my ($a, $b) = @_;
		1131
		1132	return 0 unless (ref $a) eq (ref $b);
		1133
		1134	if ("HASH" eq ref $a) {
		1135	my @ka = keys %$a;
		1136	my @kb = keys %$b;
		1137
		1138	return 0 if @ka != @kb;
		1139
		1140	for (0 .. $#ka) {
		1141	return 0 unless $ka[$_] eq $kb[$_];
		1142	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1143	}
		1144
		1145	} elsif ("ARRAY" eq ref $a) {
		1146
		1147	return 0 if @$a != @$b;
		1148
		1149	for (0 .. $#$a) {
		1150	return 0 unless _object_equal $a->[$_], $b->[$_];
		1151	}
		1152
		1153	} elsif ($a ne $b) {
		1154	return 0;
		1155	}
		1156
		1157	1
		1158	}
		1159
		1160	our $SLOW_MERGES;#d#
		1161	sub _can_merge {
		1162	my ($ob1, $ob2) = @_;
		1163
		1164	++$SLOW_MERGES;#d#
		1165
		1166	# we do the slow way here
		1167	return _object_equal $ob1, $ob2
		1168	}
703		1169
704	sub reattach {	1170	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1171	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1172	my ($obj) = @_;
		1173
		1174	# no longer needed after getting rid of delete_package?
		1175	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		1176
708	my $registry = $obj->registry;	1177	my $registry = $obj->registry;
709		1178
710	@$registry = ();	1179	@$registry = ();
711		1180
…		…
716	for (@$attach) {	1185	for (@$attach) {
717	my ($klass, @attach) = @$_;	1186	my ($klass, @attach) = @$_;
718	_attach $registry, $klass, @attach;	1187	_attach $registry, $klass, @attach;
719	}	1188	}
720	} else {	1189	} else {
721	warn "object uses attachment '$name' that is not available, postponing.\n";	1190	info "object uses attachment '$name' that is not available, postponing.\n";
722	}	1191	}
723	}	1192	}
724	}	1193	}
725		1194
726	cf::attachable->attach (	1195	cf::attachable->attach (
727	prio => -1000000,	1196	prio => -1000000,
728	on_instantiate => sub {	1197	on_instantiate => sub {
729	my ($obj, $data) = @_;	1198	my ($obj, $data) = @_;
730		1199
731	$data = from_json $data;	1200	$data = decode_json $data;
732		1201
733	for (@$data) {	1202	for (@$data) {
734	my ($name, $args) = @$_;	1203	my ($name, $args) = @$_;
735		1204
736	$obj->attach ($name, %{$args || {} });	1205	$obj->attach ($name, %{$args || {} });
…		…
752	sub object_freezer_save {	1221	sub object_freezer_save {
753	my ($filename, $rdata, $objs) = @_;	1222	my ($filename, $rdata, $objs) = @_;
754		1223
755	sync_job {	1224	sync_job {
756	if (length $$rdata) {	1225	if (length $$rdata) {
		1226	utf8::decode (my $decname = $filename);
757	warn sprintf "saving %s (%d,%d)\n",	1227	trace sprintf "saving %s (%d,%d)\n",
758	$filename, length $$rdata, scalar @$objs;	1228	$decname, length $$rdata, scalar @$objs
		1229	if $VERBOSE_IO;
759		1230
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1231	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	1232	aio_chmod $fh, SAVE_MODE;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1233	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1234	if ($cf::USE_FSYNC) {
		1235	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;
763	aio_fsync $fh;	1236	aio_fsync $fh;
		1237	}
764	close $fh;	1238	aio_close $fh;
765		1239
766	if (@$objs) {	1240	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1241	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	1242	aio_chmod $fh, SAVE_MODE;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	1243	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	1244	aio_write $fh, 0, (length $data), $data, 0;
		1245	if ($cf::USE_FSYNC) {
		1246	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;
771	aio_fsync $fh;	1247	aio_fsync $fh;
		1248	}
772	close $fh;	1249	aio_close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	1250	aio_rename "$filename.pst~", "$filename.pst";
774	}	1251	}
775	} else {	1252	} else {
776	aio_unlink "$filename.pst";	1253	aio_unlink "$filename.pst";
777	}	1254	}
778		1255
779	aio_rename "$filename~", $filename;	1256	aio_rename "$filename~", $filename;
		1257
		1258	$filename =~ s%/[^/]+$%%;
		1259	aio_pathsync $filename if $cf::USE_FSYNC;
780	} else {	1260	} else {
781	warn "FATAL: $filename~: $!\n";	1261	error "unable to save objects: $filename~: $!\n";
782	}	1262	}
783	} else {	1263	} else {
784	aio_unlink $filename;	1264	aio_unlink $filename;
785	aio_unlink "$filename.pst";	1265	aio_unlink "$filename.pst";
786	}	1266	}
787	}	1267	};
788	}	1268	}
789		1269
790	sub object_freezer_as_string {	1270	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1271	my ($rdata, $objs) = @_;
792		1272
…		…
804	or return;	1284	or return;
805		1285
806	unless (aio_stat "$filename.pst") {	1286	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	1287	(aio_load "$filename.pst", $av) >= 0
808	or return;	1288	or return;
		1289
809	$av = eval { (Storable::thaw $av)->{objs} };	1290	my $st = eval { Coro::Storable::thaw $av };
		1291	$av = $st->{objs};
810	}	1292	}
811		1293
		1294	utf8::decode (my $decname = $filename);
		1295	trace sprintf "loading %s (%d,%d)\n",
		1296	$decname, length $data, scalar @{$av || []}
		1297	if $VERBOSE_IO;
		1298
812	return ($data, $av);	1299	($data, $av)
813	}	1300	}
		1301
		1302	=head2 COMMAND CALLBACKS
		1303
		1304	=over 4
		1305
		1306	=cut
814		1307
815	#############################################################################	1308	#############################################################################
816	# command handling &c	1309	# command handling &c
817		1310
818	=item cf::register_command $name => \&callback($ob,$args);	1311	=item cf::register_command $name => \&callback($ob,$args);
…		…
831	push @{ $COMMAND{$name} }, [$caller, $cb];	1324	push @{ $COMMAND{$name} }, [$caller, $cb];
832	}	1325	}
833		1326
834	=item cf::register_extcmd $name => \&callback($pl,$packet);	1327	=item cf::register_extcmd $name => \&callback($pl,$packet);
835		1328
836	Register a callbackf ro execution when the client sends an extcmd packet.	1329	Register a callback for execution when the client sends an (synchronous)
		1330	extcmd packet. Ext commands will be processed in the order they are
		1331	received by the server, like other user commands. The first argument is
		1332	the logged-in player. Ext commands can only be processed after a player
		1333	has logged in successfully.
837		1334
838	If the callback returns something, it is sent back as if reply was being	1335	If the callback returns something, it is sent back as if reply was being
839	called.	1336	called.
840		1337
		1338	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1339
		1340	Register a callback for execution when the client sends an (asynchronous)
		1341	exticmd packet. Exti commands are processed by the server as soon as they
		1342	are received, i.e. out of order w.r.t. other commands. The first argument
		1343	is a client socket. Exti commands can be received anytime, even before
		1344	log-in.
		1345
		1346	If the callback returns something, it is sent back as if reply was being
		1347	called.
		1348
841	=cut	1349	=cut
842		1350
843	sub register_extcmd {	1351	sub register_extcmd {
844	my ($name, $cb) = @_;	1352	my ($name, $cb) = @_;
845		1353
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	1354	$EXTCMD{$name} = $cb;
850	}	1355	}
		1356
		1357	sub register_exticmd {
		1358	my ($name, $cb) = @_;
		1359
		1360	$EXTICMD{$name} = $cb;
		1361	}
		1362
		1363	use File::Glob ();
851		1364
852	cf::player->attach (	1365	cf::player->attach (
853	on_command => sub {	1366	on_unknown_command => sub {
854	my ($pl, $name, $params) = @_;	1367	my ($pl, $name, $params) = @_;
855		1368
856	my $cb = $COMMAND{$name}	1369	my $cb = $COMMAND{$name}
857	or return;	1370	or return;
858		1371
…		…
863	cf::override;	1376	cf::override;
864	},	1377	},
865	on_extcmd => sub {	1378	on_extcmd => sub {
866	my ($pl, $buf) = @_;	1379	my ($pl, $buf) = @_;
867		1380
868	my $msg = eval { from_json $buf };	1381	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
869		1382
870	if (ref $msg) {	1383	if (ref $msg) {
		1384	my ($type, $reply, @payload) =
		1385	"ARRAY" eq ref $msg
		1386	? @$msg
		1387	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1388
		1389	my @reply;
		1390
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1391	if (my $cb = $EXTCMD{$type}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	1392	@reply = $cb->($pl, @payload);
873	$pl->ext_reply ($msg->{msgid}, %reply);
874	}
875	}	1393	}
		1394
		1395	$pl->ext_reply ($reply, @reply)
		1396	if $reply;
		1397
876	} else {	1398	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1399	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
878	}	1400	}
879		1401
880	cf::override;	1402	cf::override;
881	},	1403	},
882	);	1404	);
883		1405
884	sub register {	1406	# "readahead" all extensions
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	1407	sub cache_extensions {
891	my ($path) = @_;	1408	my $grp = IO::AIO::aio_group;
892		1409
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1410	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
894	my $base = $1;	1411	for (grep /\.ext$/, @{$_[0]}) {
895	my $pkg = $1;	1412	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
896	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";
898
899	warn "loading '$path' into '$pkg'\n";
900
901	open my $fh, "<:utf8", $path
902	or die "$path: $!";
903
904	my $source =
905	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })
908	. "\n};\n1";
909
910	eval $source
911	or die $@ ? "$path: $@\n"
912	: "extension disabled.\n";
913
914	push @exts, $pkg;
915	$ext_pkg{$base} = $pkg;
916
917	# no strict 'refs';
918	# @{"$pkg\::ISA"} = ext::;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }
933
934	# remove commands
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}	1413	}
943	}	1414	};
944		1415
945	# remove extcmds	1416	$grp
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}	1417	}
959		1418
960	sub load_extensions {	1419	sub load_extensions {
		1420	info "loading extensions...";
		1421
		1422	cf::sync_job {
		1423	my %todo;
		1424
961	for my $ext (<$LIBDIR/*.ext>) {	1425	for my $path (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	1426	next unless -r $path;
963	eval {	1427
964	load_extension $ext;	1428	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1429	my $base = $1;
		1430	my $pkg = $1;
		1431	$pkg =~ s/[^[:word:]]/_/g;
		1432	$pkg = "ext::$pkg";
		1433
		1434	open my $fh, "<:utf8", $path
		1435	or die "$path: $!";
		1436
		1437	my $source = do { local $/; <$fh> };
		1438
		1439	my %ext = (
		1440	path => $path,
		1441	base => $base,
		1442	pkg => $pkg,
		1443	);
		1444
		1445	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1446	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1447
		1448	$ext{source} =
		1449	"package $pkg; use common::sense;\n"
		1450	. "#line 1 \"$path\"\n{\n"
		1451	. $source
		1452	. "\n};\n1";
		1453
		1454	$todo{$base} = \%ext;
		1455	}
		1456
		1457	my $pass = 0;
		1458	my %done;
		1459	while (%todo) {
		1460	my $progress;
		1461
		1462	++$pass;
		1463
		1464	ext:
		1465	while (my ($k, $v) = each %todo) {
		1466	for (split /,\s*/, $v->{meta}{depends}) {
		1467	next ext
		1468	unless exists $done{$_};
		1469	}
		1470
		1471	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1472
		1473	my $active = eval $v->{source};
		1474
		1475	if (length $@) {
		1476	error "$v->{path}: $@\n";
		1477
		1478	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1479	if exists $v->{meta}{mandatory};
		1480
		1481	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1482	delete $todo{$k};
		1483	} else {
		1484	$done{$k} = delete $todo{$k};
		1485	push @EXTS, $v->{pkg};
		1486	$progress = 1;
		1487
		1488	info "$v->{base}: extension inactive.\n"
		1489	unless $active;
		1490	}
965	1	1491	}
966	} or warn "$ext not loaded: $@";	1492
		1493	unless ($progress) {
		1494	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1495
		1496	while (my ($k, $v) = each %todo) {
		1497	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1498	if exists $v->{meta}{mandatory};
		1499	}
		1500	}
		1501	}
967	}	1502	};
968	}	1503	}
969		1504
970	#############################################################################	1505	#############################################################################
971	# load/save/clean perl data associated with a map
972		1506
973	*cf::mapsupport::on_clean = sub {	1507	=back
		1508
		1509	=head2 CORE EXTENSIONS
		1510
		1511	Functions and methods that extend core deliantra objects.
		1512
		1513	=cut
		1514
		1515	package cf::player;
		1516
		1517	use Coro::AIO;
		1518
		1519	=head3 cf::player
		1520
		1521	=over 4
		1522
		1523	=item cf::player::num_playing
		1524
		1525	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1526
		1527	=cut
		1528
		1529	sub num_playing {
		1530	scalar grep
		1531	$_->ob->map
		1532	&& !$_->hidden
		1533	&& !$_->ob->flag (cf::FLAG_WIZ),
		1534	cf::player::list
		1535	}
		1536
		1537	=item cf::player::find $login
		1538
		1539	Returns the given player object, loading it if necessary (might block).
		1540
		1541	=cut
		1542
		1543	sub playerdir($) {
		1544	"$PLAYERDIR/"
		1545	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1546	}
		1547
		1548	sub path($) {
		1549	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1550
		1551	(playerdir $login) . "/playerdata"
		1552	}
		1553
		1554	sub find_active($) {
		1555	$cf::PLAYER{$_[0]}
		1556	and $cf::PLAYER{$_[0]}->active
		1557	and $cf::PLAYER{$_[0]}
		1558	}
		1559
		1560	sub exists($) {
974	my ($map) = @_;	1561	my ($login) = @_;
975		1562
976	my $path = $map->tmpname;	1563	$cf::PLAYER{$login}
977	defined $path or return;	1564	or !aio_stat path $login
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}	1565	}
990		1566
991	# TODO: compatibility cruft, remove when no longer needed	1567	sub find($) {
		1568	return $cf::PLAYER{$_[0]} || do {
		1569	my $login = $_[0];
		1570
		1571	my $guard = cf::lock_acquire "user_find:$login";
		1572
		1573	$cf::PLAYER{$_[0]} || do {
		1574	# rename old playerfiles to new ones
		1575	#TODO: remove when no longer required
		1576	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1577	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1578	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1579	aio_unlink +(playerdir $login) . "/$login.pl";
		1580
		1581	my $f = new_from_file cf::object::thawer path $login
		1582	or return;
		1583
		1584	my $pl = cf::player::load_pl $f
		1585	or return;
		1586
		1587	local $cf::PLAYER_LOADING{$login} = $pl;
		1588	$f->resolve_delayed_derefs;
		1589	$cf::PLAYER{$login} = $pl
		1590	}
		1591	}
		1592	}
		1593
992	cf::player->attach (	1594	cf::player->attach (
993	on_load => sub {	1595	on_load => sub {
994	my ($pl, $path) = @_;	1596	my ($pl, $path) = @_;
995		1597
996	for my $o (all_objects $pl->ob) {	1598	# restore slots saved in save, below
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1599	my $slots = delete $pl->{_slots};
998	$o->set_ob_key_value ("_perl_data");
999		1600
1000	%$o = %{ Storable::thaw pack "H*", $value };	1601	$pl->ob->current_weapon ($slots->[0]);
1001	}	1602	$pl->combat_ob ($slots->[1]);
1002	}	1603	$pl->ranged_ob ($slots->[2]);
1003	},	1604	},
1004	);	1605	);
1005		1606
1006	#############################################################################	1607	sub save($) {
		1608	my ($pl) = @_;
1007		1609
1008	=head2 CORE EXTENSIONS	1610	return if $pl->{deny_save};
1009		1611
1010	Functions and methods that extend core crossfire objects.	1612	my $path = path $pl;
		1613	my $guard = cf::lock_acquire "user_save:$path";
1011		1614
1012	=head3 cf::player	1615	return if $pl->{deny_save};
		1616
		1617	aio_mkdir playerdir $pl, 0770;
		1618	$pl->{last_save} = $cf::RUNTIME;
		1619
		1620	cf::get_slot 0.01;
		1621
		1622	# save slots, to be restored later
		1623	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1624
		1625	$pl->save_pl ($path);
		1626	cf::cede_to_tick;
		1627	}
		1628
		1629	sub new($) {
		1630	my ($login) = @_;
		1631
		1632	my $self = create;
		1633
		1634	$self->ob->name ($login);
		1635	$self->{deny_save} = 1;
		1636
		1637	$cf::PLAYER{$login} = $self;
		1638
		1639	$self
		1640	}
		1641
		1642	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1643
		1644	=cut
		1645
		1646	sub send_msg {
		1647	my $ns = shift->ns
		1648	or return;
		1649	$ns->send_msg (@_);
		1650	}
		1651
		1652	=item $pl->quit_character
		1653
		1654	Nukes the player without looking back. If logged in, the connection will
		1655	be destroyed. May block for a long time.
		1656
		1657	=cut
		1658
		1659	sub quit_character {
		1660	my ($pl) = @_;
		1661
		1662	my $name = $pl->ob->name;
		1663
		1664	$pl->{deny_save} = 1;
		1665	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1666
		1667	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1668	$pl->deactivate;
		1669
		1670	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1671	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1672	ext::highscore::check ($pl->ob);
		1673
		1674	$pl->ns->destroy if $pl->ns;
		1675
		1676	my $path = playerdir $pl;
		1677	my $temp = "$path~$cf::RUNTIME~deleting~";
		1678	aio_rename $path, $temp;
		1679	delete $cf::PLAYER{$pl->ob->name};
		1680	$pl->destroy;
		1681
		1682	my $prefix = qr<^~\Q$name\E/>;
		1683
		1684	# nuke player maps
		1685	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1686
		1687	IO::AIO::aio_rmtree $temp;
		1688	}
		1689
		1690	=item $pl->kick
		1691
		1692	Kicks a player out of the game. This destroys the connection.
		1693
		1694	=cut
		1695
		1696	sub kick {
		1697	my ($pl, $kicker) = @_;
		1698
		1699	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1700	$pl->killer ("kicked");
		1701	$pl->ns->destroy;
		1702	}
		1703
		1704	=item cf::player::list_logins
		1705
		1706	Returns am arrayref of all valid playernames in the system, can take a
		1707	while and may block, so not sync_job-capable, ever.
		1708
		1709	=cut
		1710
		1711	sub list_logins {
		1712	my $dirs = aio_readdir $PLAYERDIR
		1713	or return [];
		1714
		1715	my @logins;
		1716
		1717	for my $login (@$dirs) {
		1718	my $path = path $login;
		1719
		1720	# a .pst is a dead give-away for a valid player
		1721	# if no pst file found, open and chekc for blocked users
		1722	if (aio_stat "$path.pst") {
		1723	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1724	aio_read $fh, 0, 512, my $buf, 0 or next;
		1725	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1726	}
		1727
		1728	utf8::decode $login;
		1729	push @logins, $login;
		1730	}
		1731
		1732	\@logins
		1733	}
		1734
		1735	=item $player->maps
		1736
		1737	=item cf::player::maps $login
		1738
		1739	Returns an arrayref of map paths that are private for this
		1740	player. May block.
		1741
		1742	=cut
		1743
		1744	sub maps($) {
		1745	my ($pl) = @_;
		1746
		1747	$pl = ref $pl ? $pl->ob->name : $pl;
		1748
		1749	my $files = aio_readdir playerdir $pl
		1750	or return;
		1751
		1752	my @paths;
		1753
		1754	for (@$files) {
		1755	utf8::decode $_;
		1756	next if /\.(?:pl|pst)$/;
		1757	next unless /^$PATH_SEP/o;
		1758
		1759	push @paths, cf::map::normalise "~$pl/$_";
		1760	}
		1761
		1762	\@paths
		1763	}
		1764
		1765	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1766
		1767	Expand deliantra pod fragments into protocol xml.
		1768
		1769	=item $player->ext_reply ($msgid, @msg)
		1770
		1771	Sends an ext reply to the player.
		1772
		1773	=cut
		1774
		1775	sub ext_reply($$@) {
		1776	my ($self, $id, @msg) = @_;
		1777
		1778	$self->ns->ext_reply ($id, @msg)
		1779	}
		1780
		1781	=item $player->ext_msg ($type, @msg)
		1782
		1783	Sends an ext event to the client.
		1784
		1785	=cut
		1786
		1787	sub ext_msg($$@) {
		1788	my ($self, $type, @msg) = @_;
		1789
		1790	$self->ns->ext_msg ($type, @msg);
		1791	}
		1792
		1793	=head3 cf::region
1013		1794
1014	=over 4	1795	=over 4
1015		1796
1016	=item cf::player::exists $login
1017
1018	Returns true when the given account exists.
1019
1020	=cut	1797	=cut
1021		1798
1022	sub cf::player::exists($) {	1799	package cf::region;
1023	cf::player::find $_[0]
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1025	}
1026		1800
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1801	=item cf::region::find_by_path $path
1028		1802
1029	Sends an ext reply to the player.	1803	Tries to decuce the likely region for a map knowing only its path.
1030		1804
1031	=cut	1805	=cut
1032		1806
1033	sub cf::player::ext_reply($$$%) {	1807	sub find_by_path($) {
1034	my ($self, $id, %msg) = @_;	1808	my ($path) = @_;
1035		1809
1036	$msg{msgid} = $id;	1810	$path =~ s/^~[^\/]*//; # skip ~login
1037		1811
1038	$self->send ("ext " . to_json \%msg);	1812	my ($match, $specificity);
		1813
		1814	for my $region (list) {
		1815	if ($region->{match} && $path =~ $region->{match}) {
		1816	($match, $specificity) = ($region, $region->specificity)
		1817	if $region->specificity > $specificity;
		1818	}
		1819	}
		1820
		1821	$match
1039	}	1822	}
1040		1823
1041	=back	1824	=back
1042
1043		1825
1044	=head3 cf::map	1826	=head3 cf::map
1045		1827
1046	=over 4	1828	=over 4
1047		1829
…		…
1050	package cf::map;	1832	package cf::map;
1051		1833
1052	use Fcntl;	1834	use Fcntl;
1053	use Coro::AIO;	1835	use Coro::AIO;
1054		1836
		1837	use overload
		1838	'""' => \&as_string,
		1839	fallback => 1;
		1840
1055	our $MAX_RESET = 7200;	1841	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1842	our $DEFAULT_RESET = 3000;
1057		1843
1058	sub generate_random_map {	1844	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1845	my ($self, $rmp) = @_;
		1846
		1847	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1060		1848
1061	# mit "rum" bekleckern, nicht	1849	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1850	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1851	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1852	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1853	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1854	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1855	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1856	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1857	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1858	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1859	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1860	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1861	(cf::region::find $rmp->{region}), $rmp->{custom}
		1862	)
1075	}	1863	}
1076		1864
1077	# and all this just because we cannot iterate over	1865	=item cf::map->register ($regex, $prio)
1078	# all maps in C++...
1079	sub change_all_map_light {
1080	my ($change) = @_;
1081		1866
1082	$_->change_map_light ($change) for values %cf::MAP;	1867	Register a handler for the map path matching the given regex at the
1083	}	1868	givne priority (higher is better, built-in handlers have priority 0, the
		1869	default).
1084		1870
1085	sub try_load_header($) {	1871	=cut
		1872
		1873	sub register {
		1874	my (undef, $regex, $prio) = @_;
		1875	my $pkg = caller;
		1876
		1877	push @{"$pkg\::ISA"}, __PACKAGE__;
		1878
		1879	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1880	}
		1881
		1882	# also paths starting with '/'
		1883	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1884
		1885	sub thawer_merge {
		1886	my ($self, $merge) = @_;
		1887
		1888	# we have to keep some variables in memory intact
		1889	local $self->{path};
		1890	local $self->{load_path};
		1891
		1892	$self->SUPER::thawer_merge ($merge);
		1893	}
		1894
		1895	sub normalise {
1086	my ($path) = @_;	1896	my ($path, $base) = @_;
		1897
		1898	$path = "$path"; # make sure it's a string
		1899
		1900	$path =~ s/\.map$//;
		1901
		1902	# map plan:
		1903	#
		1904	# /! non-realised random map exit (special hack!)
		1905	# {... are special paths that are not being touched
		1906	# ?xxx/... are special absolute paths
		1907	# ?random/... random maps
		1908	# /... normal maps
		1909	# ~user/... per-player map of a specific user
		1910
		1911	$path =~ s/$PATH_SEP/\//go;
		1912
		1913	# treat it as relative path if it starts with
		1914	# something that looks reasonable
		1915	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1916	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1917
		1918	$base =~ s{[^/]+/?$}{};
		1919	$path = "$base/$path";
		1920	}
		1921
		1922	for ($path) {
		1923	redo if s{//}{/};
		1924	redo if s{/\.?/}{/};
		1925	redo if s{/[^/]+/\.\./}{/};
		1926	}
		1927
		1928	$path
		1929	}
		1930
		1931	sub new_from_path {
		1932	my (undef, $path, $base) = @_;
		1933
		1934	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1935
		1936	$path = normalise $path, $base;
		1937
		1938	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1939	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1940	my $self = bless cf::map::new, $pkg;
		1941	$self->{path} = $path; $self->path ($path);
		1942	$self->init; # pass $1 etc.
		1943	return $self;
		1944	}
		1945	}
		1946
		1947	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1948	()
		1949	}
		1950
		1951	sub init {
		1952	my ($self) = @_;
		1953
		1954	$self
		1955	}
		1956
		1957	sub as_string {
		1958	my ($self) = @_;
		1959
		1960	"$self->{path}"
		1961	}
		1962
		1963	# the displayed name, this is a one way mapping
		1964	sub visible_name {
		1965	&as_string
		1966	}
		1967
		1968	# the original (read-only) location
		1969	sub load_path {
		1970	my ($self) = @_;
		1971
		1972	"$MAPDIR/$self->{path}.map"
		1973	}
		1974
		1975	# the temporary/swap location
		1976	sub save_path {
		1977	my ($self) = @_;
		1978
		1979	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1980	"$TMPDIR/$path.map"
		1981	}
		1982
		1983	# the unique path, undef == no special unique path
		1984	sub uniq_path {
		1985	my ($self) = @_;
		1986
		1987	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1988	"$UNIQUEDIR/$path"
		1989	}
		1990
		1991	sub decay_objects {
		1992	my ($self) = @_;
		1993
		1994	return if $self->{deny_reset};
		1995
		1996	$self->do_decay_objects;
		1997	}
		1998
		1999	sub unlink_save {
		2000	my ($self) = @_;
		2001
		2002	utf8::encode (my $save = $self->save_path);
		2003	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2004	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2005	}
		2006
		2007	sub load_header_from($) {
		2008	my ($self, $path) = @_;
1087		2009
1088	utf8::encode $path;	2010	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	2011	my $f = new_from_file cf::object::thawer $path
1090	or return;	2012	or return;
1091		2013
1092	my $map = cf::map::new	2014	$self->_load_header ($f)
1093	or return;	2015	or return;
1094		2016
1095	$map->load_header ($path)	2017	local $MAP_LOADING{$self->{path}} = $self;
		2018	$f->resolve_delayed_derefs;
		2019
		2020	$self->{load_path} = $path;
		2021
		2022	1
		2023	}
		2024
		2025	sub load_header_orig {
		2026	my ($self) = @_;
		2027
		2028	$self->load_header_from ($self->load_path)
		2029	}
		2030
		2031	sub load_header_temp {
		2032	my ($self) = @_;
		2033
		2034	$self->load_header_from ($self->save_path)
		2035	}
		2036
		2037	sub prepare_temp {
		2038	my ($self) = @_;
		2039
		2040	$self->last_access ((delete $self->{last_access})
		2041	|| $cf::RUNTIME); #d#
		2042	# safety
		2043	$self->{instantiate_time} = $cf::RUNTIME
		2044	if $self->{instantiate_time} > $cf::RUNTIME;
		2045	}
		2046
		2047	sub prepare_orig {
		2048	my ($self) = @_;
		2049
		2050	$self->{load_original} = 1;
		2051	$self->{instantiate_time} = $cf::RUNTIME;
		2052	$self->last_access ($cf::RUNTIME);
		2053	$self->instantiate;
		2054	}
		2055
		2056	sub load_header {
		2057	my ($self) = @_;
		2058
		2059	if ($self->load_header_temp) {
		2060	$self->prepare_temp;
		2061	} else {
		2062	$self->load_header_orig
1096	or return;	2063	or return;
		2064	$self->prepare_orig;
		2065	}
1097		2066
1098	$map->{load_path} = $path;	2067	$self->{deny_reset} = 1
		2068	if $self->no_reset;
1099		2069
1100	$map	2070	$self->default_region (cf::region::find_by_path $self->{path})
1101	}	2071	unless $self->default_region;
1102		2072
		2073	1
		2074	}
		2075
		2076	sub find;
1103	sub find_map {	2077	sub find {
1104	my ($path, $origin) = @_;	2078	my ($path, $origin) = @_;
1105		2079
1106	#warn "find_map<$path,$origin>\n";#d#	2080	cf::cede_to_tick;
1107		2081
1108	$path = new cf::path $path, $origin && $origin->path;	2082	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		2083
		2084	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2085	my $guard2 = cf::lock_acquire "map_find:$path";
		2086
1111	$cf::MAP{$key} || do {	2087	$cf::MAP{$path} || do {
1112	# do it the slow way	2088	my $map = new_from_path cf::map $path
1113	my $map = try_load_header $path->save_path;
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	2089	or return;
1127		2090
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	2091	$map->{last_save} = $cf::RUNTIME;
1139		2092
1140	if ($map->should_reset) {	2093	$map->load_header
		2094	or return;
		2095
		2096	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2097	# doing this can freeze the server in a sync job, obviously
		2098	#$cf::WAIT_FOR_TICK->wait;
		2099	undef $guard2;
		2100	undef $guard1;
1141	$map->reset;	2101	$map->reset;
1142	$map = find_map $path;	2102	return find $path;
1143	}	2103	}
1144		2104
1145	$cf::MAP{$key} = $map	2105	$cf::MAP{$path} = $map
1146	}	2106	}
1147	}	2107	}
		2108
		2109	sub pre_load { }
		2110	#sub post_load { } # XS
1148		2111
1149	sub load {	2112	sub load {
1150	my ($self) = @_;	2113	my ($self) = @_;
1151		2114
1152	return if $self->in_memory != cf::MAP_SWAPPED;	2115	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		2116
1156	my $path = $self->{path};	2117	my $path = $self->{path};
1157		2118
		2119	{
		2120	my $guard = cf::lock_acquire "map_data:$path";
		2121
		2122	return unless $self->valid;
		2123	return unless $self->in_memory == cf::MAP_SWAPPED;
		2124
		2125	$self->in_memory (cf::MAP_LOADING);
		2126
1158	$self->alloc;	2127	$self->alloc;
1159	$self->load_objects ($self->{load_path}, 1)	2128
		2129	$self->pre_load;
		2130	cf::cede_to_tick;
		2131
		2132	my $f = new_from_file cf::object::thawer $self->{load_path};
		2133	$f->skip_block;
		2134	$self->_load_objects ($f)
1160	or return;	2135	or return;
1161		2136
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2137	$self->post_load_original
1163	if delete $self->{load_original};	2138	if delete $self->{load_original};
1164		2139
1165	if (my $uniq = $path->uniq_path) {	2140	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	2141	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	2142	unless (aio_stat $uniq) {
		2143	if (my $f = new_from_file cf::object::thawer $uniq) {
1168	$self->clear_unique_items;	2144	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	2145	$self->_load_objects ($f);
		2146	$f->resolve_delayed_derefs;
		2147	}
1170	}	2148	}
1171	}	2149	}
1172		2150
		2151	$f->resolve_delayed_derefs;
		2152
		2153	cf::cede_to_tick;
1173	# now do the right thing for maps	2154	# now do the right thing for maps
1174	$self->link_multipart_objects;	2155	$self->link_multipart_objects;
1175
1176	if ($self->{path}->is_style_map) {
1177	$self->{deny_save} = 1;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;
1183	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	2156	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	2157	unless $self->difficulty;
		2158	cf::cede_to_tick;
		2159
		2160	unless ($self->{deny_activate}) {
		2161	$self->decay_objects;
		2162	$self->fix_auto_apply;
		2163	$self->update_buttons;
		2164	cf::cede_to_tick;
1186	$self->activate;	2165	$self->activate;
1187	}	2166	}
1188		2167
		2168	$self->{last_save} = $cf::RUNTIME;
		2169	$self->last_access ($cf::RUNTIME);
		2170
1189	$self->in_memory (cf::MAP_IN_MEMORY);	2171	$self->in_memory (cf::MAP_ACTIVE);
1190	}	2172	}
1191		2173
1192	sub load_map_sync {	2174	$self->post_load;
		2175	}
		2176
		2177	# customize the map for a given player, i.e.
		2178	# return the _real_ map. used by e.g. per-player
		2179	# maps to change the path to ~playername/mappath
		2180	sub customise_for {
		2181	my ($self, $ob) = @_;
		2182
		2183	return find "~" . $ob->name . "/" . $self->{path}
		2184	if $self->per_player;
		2185
		2186	# return find "?party/" . $ob->name . "/" . $self->{path}
		2187	# if $self->per_party;
		2188
		2189	$self
		2190	}
		2191
		2192	# find and load all maps in the 3x3 area around a map
		2193	sub load_neighbours {
		2194	my ($map) = @_;
		2195
		2196	my @neigh; # diagonal neighbours
		2197
		2198	for (0 .. 3) {
		2199	my $neigh = $map->tile_path ($_)
		2200	or next;
		2201	$neigh = find $neigh, $map
		2202	or next;
		2203	$neigh->load;
		2204
		2205	# now find the diagonal neighbours
		2206	push @neigh,
		2207	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2208	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2209	}
		2210
		2211	for (grep defined $_->[0], @neigh) {
		2212	my ($path, $origin) = @$_;
		2213	my $neigh = find $path, $origin
		2214	or next;
		2215	$neigh->load;
		2216	}
		2217	}
		2218
		2219	sub find_sync {
1193	my ($path, $origin) = @_;	2220	my ($path, $origin) = @_;
1194		2221
1195	#warn "load_map_sync<$path, $origin>\n";#d#	2222	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2223	if $Coro::current == $Coro::main;
1196		2224
1197	cf::sync_job {	2225	find $path, $origin
1198	my $map = cf::map::find_map $path, $origin	2226	}
1199	or return;	2227
		2228	sub do_load_sync {
		2229	my ($map) = @_;
		2230
		2231	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2232	if $Coro::current == $Coro::main;
		2233
1200	$map->load;	2234	$map->load;
1201	$map	2235	}
		2236
		2237	our %MAP_PREFETCH;
		2238	our $MAP_PREFETCHER = undef;
		2239
		2240	sub find_async {
		2241	my ($path, $origin, $load) = @_;
		2242
		2243	$path = normalise $path, $origin && $origin->{path};
		2244
		2245	if (my $map = $cf::MAP{$path}) {
		2246	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2247	}
		2248
		2249	$MAP_PREFETCH{$path} |= $load;
		2250
		2251	$MAP_PREFETCHER ||= cf::async {
		2252	$Coro::current->{desc} = "map prefetcher";
		2253
		2254	while (%MAP_PREFETCH) {
		2255	while (my ($k, $v) = each %MAP_PREFETCH) {
		2256	if (my $map = find $k) {
		2257	$map->load if $v;
		2258	}
		2259
		2260	delete $MAP_PREFETCH{$k};
		2261	}
		2262	}
		2263	undef $MAP_PREFETCHER;
		2264	};
		2265	$MAP_PREFETCHER->prio (6);
		2266
		2267	()
		2268	}
		2269
		2270	# common code, used by both ->save and ->swapout
		2271	sub _save {
		2272	my ($self) = @_;
		2273
		2274	$self->{last_save} = $cf::RUNTIME;
		2275
		2276	return unless $self->dirty;
		2277
		2278	my $save = $self->save_path; utf8::encode $save;
		2279	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2280
		2281	$self->{load_path} = $save;
		2282
		2283	return if $self->{deny_save};
		2284
		2285	local $self->{last_access} = $self->last_access;#d#
		2286
		2287	cf::async {
		2288	$Coro::current->{desc} = "map player save";
		2289	$_->contr->save for $self->players;
		2290	};
		2291
		2292	cf::get_slot 0.02;
		2293
		2294	if ($uniq) {
		2295	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2296	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2297	} else {
		2298	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1202	}	2299	}
1203	}	2300	}
1204		2301
1205	sub save {	2302	sub save {
1206	my ($self) = @_;	2303	my ($self) = @_;
1207		2304
1208	my $save = $self->{path}->save_path; utf8::encode $save;	2305	my $lock = cf::lock_acquire "map_data:$self->{path}";
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		2306
1211	$self->{last_save} = $cf::RUNTIME;	2307	$self->_save;
1212
1213	return unless $self->dirty;
1214
1215	$self->{load_path} = $save;
1216
1217	return if $self->{deny_save};
1218
1219	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}
1225	}	2308	}
1226		2309
1227	sub swap_out {	2310	sub swap_out {
1228	my ($self) = @_;	2311	my ($self) = @_;
1229		2312
		2313	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2314
		2315	return if $self->in_memory != cf::MAP_ACTIVE;
		2316	return if $self->{deny_save};
1230	return if $self->players;	2317	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};
1233		2318
		2319	# first deactivate the map and "unlink" it from the core
		2320	$self->deactivate;
		2321	$_->clear_links_to ($self) for values %cf::MAP;
		2322	$self->in_memory (cf::MAP_SWAPPED);
		2323
		2324	# then atomically save
1234	$self->save;	2325	$self->_save;
		2326
		2327	# then free the map
1235	$self->clear;	2328	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);
1237	}	2329	}
1238		2330
1239	sub reset_at {	2331	sub reset_at {
1240	my ($self) = @_;	2332	my ($self) = @_;
1241		2333
1242	# TODO: safety, remove and allow resettable per-player maps	2334	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};
1244	return 1e100 if $self->{deny_reset};	2335	return 1e99 if $self->{deny_reset};
1245		2336
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2337	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	2338	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		2339
1250	$time + $to	2340	$time + $to
1251	}	2341	}
1252		2342
1253	sub should_reset {	2343	sub should_reset {
1254	my ($self) = @_;	2344	my ($self) = @_;
1255		2345
1256	$self->reset_at <= $cf::RUNTIME	2346	$self->reset_at <= $cf::RUNTIME
1257	}	2347	}
1258		2348
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub rename {
1268	my ($self, $new_path) = @_;
1269
1270	$self->unlink_save;
1271
1272	delete $cf::MAP{$self->path};
1273	$self->{path} = new cf::path $new_path;
1274	$self->path ($self->{path}->path);
1275	$cf::MAP{$self->path} = $self;
1276
1277	$self->save;
1278	}
1279
1280	sub reset {	2349	sub reset {
1281	my ($self) = @_;	2350	my ($self) = @_;
1282		2351
		2352	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2353
1283	return if $self->players;	2354	return if $self->players;
1284	return if $self->{path}{user_rel};#d#
1285		2355
1286	warn "resetting map ", $self->path;#d#	2356	cf::trace "resetting map ", $self->path, "\n";
		2357
		2358	$self->in_memory (cf::MAP_SWAPPED);
		2359
		2360	# need to save uniques path
		2361	unless ($self->{deny_save}) {
		2362	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2363
		2364	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2365	if $uniq;
		2366	}
1287		2367
1288	delete $cf::MAP{$self->path};	2368	delete $cf::MAP{$self->path};
1289		2369
		2370	$self->deactivate;
1290	$_->clear_links_to ($self) for values %cf::MAP;	2371	$_->clear_links_to ($self) for values %cf::MAP;
		2372	$self->clear;
1291		2373
1292	$self->unlink_save;	2374	$self->unlink_save;
1293	$self->destroy;	2375	$self->destroy;
1294	}	2376	}
1295		2377
1296	sub customise_for {	2378	my $nuke_counter = "aaaa";
1297	my ($map, $ob) = @_;
1298		2379
1299	if ($map->per_player) {	2380	sub nuke {
1300	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2381	my ($self) = @_;
		2382
1301	}	2383	{
		2384	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2385
1303	$map	2386	delete $cf::MAP{$self->path};
1304	}
1305		2387
1306	sub emergency_save {	2388	$self->unlink_save;
1307	local $cf::FREEZE = 1;
1308		2389
1309	warn "enter emergency map save\n";	2390	bless $self, "cf::map::wrap";
		2391	delete $self->{deny_reset};
		2392	$self->{deny_save} = 1;
		2393	$self->reset_timeout (1);
		2394	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1310		2395
1311	cf::sync_job {	2396	$cf::MAP{$self->path} = $self;
1312	warn "begin emergency map save\n";
1313	$_->save for values %cf::MAP;
1314	};	2397	}
1315		2398
1316	warn "end emergency map save\n";	2399	$self->reset; # polite request, might not happen
		2400	}
		2401
		2402	=item $maps = cf::map::tmp_maps
		2403
		2404	Returns an arrayref with all map paths of currently instantiated and saved
		2405	maps. May block.
		2406
		2407	=cut
		2408
		2409	sub tmp_maps() {
		2410	[
		2411	map {
		2412	utf8::decode $_;
		2413	/\.map$/
		2414	? normalise $_
		2415	: ()
		2416	} @{ aio_readdir $TMPDIR or [] }
		2417	]
		2418	}
		2419
		2420	=item $maps = cf::map::random_maps
		2421
		2422	Returns an arrayref with all map paths of currently instantiated and saved
		2423	random maps. May block.
		2424
		2425	=cut
		2426
		2427	sub random_maps() {
		2428	[
		2429	map {
		2430	utf8::decode $_;
		2431	/\.map$/
		2432	? normalise "?random/$_"
		2433	: ()
		2434	} @{ aio_readdir $RANDOMDIR or [] }
		2435	]
		2436	}
		2437
		2438	=item cf::map::unique_maps
		2439
		2440	Returns an arrayref of paths of all shared maps that have
		2441	instantiated unique items. May block.
		2442
		2443	=cut
		2444
		2445	sub unique_maps() {
		2446	[
		2447	map {
		2448	utf8::decode $_;
		2449	s/\.map$//; # TODO future compatibility hack
		2450	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2451	? ()
		2452	: normalise $_
		2453	} @{ aio_readdir $UNIQUEDIR or [] }
		2454	]
		2455	}
		2456
		2457	=item cf::map::static_maps
		2458
		2459	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2460	file in the shared directory excluding F</styles> and F</editor>). May
		2461	block.
		2462
		2463	=cut
		2464
		2465	sub static_maps() {
		2466	my @dirs = "";
		2467	my @maps;
		2468
		2469	while (@dirs) {
		2470	my $dir = shift @dirs;
		2471
		2472	next if $dir eq "/styles" || $dir eq "/editor";
		2473
		2474	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2475	or return;
		2476
		2477	for (@$files) {
		2478	s/\.map$// or next;
		2479	utf8::decode $_;
		2480	push @maps, "$dir/$_";
		2481	}
		2482
		2483	push @dirs, map "$dir/$_", @$dirs;
		2484	}
		2485
		2486	\@maps
		2487	}
		2488
		2489	=back
		2490
		2491	=head3 cf::object
		2492
		2493	=cut
		2494
		2495	package cf::object;
		2496
		2497	=over 4
		2498
		2499	=item $ob->inv_recursive
		2500
		2501	Returns the inventory of the object I<and> their inventories, recursively,
		2502	but I<not> the object itself.
		2503
		2504	=cut
		2505
		2506	sub inv_recursive_;
		2507	sub inv_recursive_ {
		2508	map { $_, inv_recursive_ $_->inv } @_
		2509	}
		2510
		2511	sub inv_recursive {
		2512	inv_recursive_ inv $_[0]
		2513	}
		2514
		2515	=item $ref = $ob->ref
		2516
		2517	Creates and returns a persistent reference to an object that can be stored as a string.
		2518
		2519	=item $ob = cf::object::deref ($refstring)
		2520
		2521	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2522	even if the object actually exists. May block.
		2523
		2524	=cut
		2525
		2526	sub deref {
		2527	my ($ref) = @_;
		2528
		2529	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2530	my ($uuid, $name) = ($1, $2);
		2531	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2532	or return;
		2533	$pl->ob->uuid eq $uuid
		2534	or return;
		2535
		2536	$pl->ob
		2537	} else {
		2538	warn "$ref: cannot resolve object reference\n";
		2539	undef
		2540	}
1317	}	2541	}
1318		2542
1319	package cf;	2543	package cf;
1320		2544
1321	=back	2545	=back
1322
1323		2546
1324	=head3 cf::object::player	2547	=head3 cf::object::player
1325		2548
1326	=over 4	2549	=over 4
1327		2550
…		…
1330	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2553	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1331	can be C<undef>. Does the right thing when the player is currently in a	2554	can be C<undef>. Does the right thing when the player is currently in a
1332	dialogue with the given NPC character.	2555	dialogue with the given NPC character.
1333		2556
1334	=cut	2557	=cut
		2558
		2559	our $SAY_CHANNEL = {
		2560	id => "say",
		2561	title => "Map",
		2562	reply => "say ",
		2563	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2564	};
		2565
		2566	our $CHAT_CHANNEL = {
		2567	id => "chat",
		2568	title => "Chat",
		2569	reply => "chat ",
		2570	tooltip => "Player chat and shouts, global to the server.",
		2571	};
1335		2572
1336	# rough implementation of a future "reply" method that works	2573	# rough implementation of a future "reply" method that works
1337	# with dialog boxes.	2574	# with dialog boxes.
1338	#TODO: the first argument must go, split into a $npc->reply_to ( method	2575	#TODO: the first argument must go, split into a $npc->reply_to ( method
1339	sub cf::object::player::reply($$$;$) {	2576	sub cf::object::player::reply($$$;$) {
…		…
1341		2578
1342	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2579	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1343		2580
1344	if ($self->{record_replies}) {	2581	if ($self->{record_replies}) {
1345	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2582	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2583
1346	} else {	2584	} else {
		2585	my $pl = $self->contr;
		2586
		2587	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2588	my $dialog = $pl->{npc_dialog};
		2589	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2590
		2591	} else {
1347	$msg = $npc->name . " says: $msg" if $npc;	2592	$msg = $npc->name . " says: $msg" if $npc;
1348	$self->message ($msg, $flags);	2593	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2594	}
1349	}	2595	}
		2596	}
		2597
		2598	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2599
		2600	=cut
		2601
		2602	sub cf::object::send_msg {
		2603	my $pl = shift->contr
		2604	or return;
		2605	$pl->send_msg (@_);
1350	}	2606	}
1351		2607
1352	=item $player_object->may ("access")	2608	=item $player_object->may ("access")
1353		2609
1354	Returns wether the given player is authorized to access resource "access"	2610	Returns wether the given player is authorized to access resource "access"
…		…
1363	(ref $cf::CFG{"may_$access"}	2619	(ref $cf::CFG{"may_$access"}
1364	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2620	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1365	: $cf::CFG{"may_$access"})	2621	: $cf::CFG{"may_$access"})
1366	}	2622	}
1367		2623
		2624	=item $player_object->enter_link
		2625
		2626	Freezes the player and moves him/her to a special map (C<{link}>).
		2627
		2628	The player should be reasonably safe there for short amounts of time (e.g.
		2629	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2630	though, as the player cannot control the character while it is on the link
		2631	map.
		2632
		2633	Will never block.
		2634
		2635	=item $player_object->leave_link ($map, $x, $y)
		2636
		2637	Moves the player out of the special C<{link}> map onto the specified
		2638	map. If the map is not valid (or omitted), the player will be moved back
		2639	to the location he/she was before the call to C<enter_link>, or, if that
		2640	fails, to the emergency map position.
		2641
		2642	Might block.
		2643
		2644	=cut
		2645
		2646	sub link_map {
		2647	unless ($LINK_MAP) {
		2648	$LINK_MAP = cf::map::find "{link}"
		2649	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2650	$LINK_MAP->load;
		2651	}
		2652
		2653	$LINK_MAP
		2654	}
		2655
1368	sub cf::object::player::enter_link {	2656	sub cf::object::player::enter_link {
1369	my ($self) = @_;	2657	my ($self) = @_;
1370		2658
1371	return if $self->map == $LINK_MAP;
1372
1373	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1374	if $self->map;
1375
1376	$self->enter_map ($LINK_MAP, 20, 20);
1377	$self->deactivate_recursive;	2659	$self->deactivate_recursive;
		2660
		2661	++$self->{_link_recursion};
		2662
		2663	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2664
		2665	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2666	if $self->map && $self->map->{path} ne "{link}";
		2667
		2668	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1378	}	2669	}
1379		2670
1380	sub cf::object::player::leave_link {	2671	sub cf::object::player::leave_link {
1381	my ($self, $map, $x, $y) = @_;	2672	my ($self, $map, $x, $y) = @_;
1382		2673
		2674	return unless $self->contr->active;
		2675
1383	my $link_pos = delete $self->{_link_pos};	2676	my $link_pos = delete $self->{_link_pos};
1384		2677
1385	unless ($map) {	2678	unless ($map) {
1386	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1387
1388	# restore original map position	2679	# restore original map position
1389	($map, $x, $y) = @{ $link_pos || [] };	2680	($map, $x, $y) = @{ $link_pos || [] };
1390	$map = cf::map::find_map $map;	2681	$map = cf::map::find $map;
1391		2682
1392	unless ($map) {	2683	unless ($map) {
1393	($map, $x, $y) = @$EMERGENCY_POSITION;	2684	($map, $x, $y) = @$EMERGENCY_POSITION;
1394	$map = cf::map::find_map $map	2685	$map = cf::map::find $map
1395	or die "FATAL: cannot load emergency map\n";	2686	or die "FATAL: cannot load emergency map\n";
1396	}	2687	}
1397	}	2688	}
1398		2689
1399	($x, $y) = (-1, -1)	2690	($x, $y) = (-1, -1)
1400	unless (defined $x) && (defined $y);	2691	unless (defined $x) && (defined $y);
1401		2692
1402	# use -1 or undef as default coordinates, not 0, 0	2693	# use -1 or undef as default coordinates, not 0, 0
1403	($x, $y) = ($map->enter_x, $map->enter_y)	2694	($x, $y) = ($map->enter_x, $map->enter_y)
1404	if $x <=0 && $y <= 0;	2695	if $x <= 0 && $y <= 0;
1405		2696
1406	$map->load;	2697	$map->load;
		2698	$map->load_neighbours;
1407		2699
		2700	return unless $self->contr->active;
		2701
		2702	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2703	if ($self->enter_map ($map, $x, $y)) {
		2704	# entering was successful
		2705	delete $self->{_link_recursion};
		2706	# only activate afterwards, to support waiting in hooks
1408	$self->activate_recursive;	2707	$self->activate_recursive;
1409	$self->enter_map ($map, $x, $y);	2708	}
1410	}
1411		2709
1412	=item $player_object->goto_map ($map, $x, $y)	2710	}
1413		2711
1414	=cut	2712	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1415		2713
		2714	Moves the player to the given map-path and coordinates by first freezing
		2715	her, loading and preparing them map, calling the provided $check callback
		2716	that has to return the map if sucecssful, and then unfreezes the player on
		2717	the new (success) or old (failed) map position. In either case, $done will
		2718	be called at the end of this process.
		2719
		2720	Note that $check will be called with a potentially non-loaded map, so if
		2721	it needs a loaded map it has to call C<< ->load >>.
		2722
		2723	=cut
		2724
		2725	our $GOTOGEN;
		2726
1416	sub cf::object::player::goto_map {	2727	sub cf::object::player::goto {
1417	my ($self, $path, $x, $y) = @_;	2728	my ($self, $path, $x, $y, $check, $done) = @_;
		2729
		2730	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2731	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2732	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2733	($path, $x, $y) = @$EMERGENCY_POSITION;
		2734	}
		2735
		2736	# do generation counting so two concurrent goto's will be executed in-order
		2737	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1418		2738
1419	$self->enter_link;	2739	$self->enter_link;
1420		2740
1421	(Coro::async {	2741	(async {
1422	$path = new cf::path $path;	2742	$Coro::current->{desc} = "player::goto $path $x $y";
1423		2743
1424	my $map = cf::map::find_map $path->as_string;	2744	# *tag paths override both path and x|y
		2745	if ($path =~ /^\*(.*)$/) {
		2746	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2747	my $ob = $obs[rand @obs];
		2748
		2749	# see if we actually can go there
		2750	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2751	$ob = $obs[rand @obs];
		2752	} else {
		2753	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2754	}
		2755	# else put us there anyways for now #d#
		2756
		2757	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2758	} else {
		2759	($path, $x, $y) = (undef, undef, undef);
		2760	}
		2761	}
		2762
		2763	my $map = eval {
		2764	my $map = defined $path ? cf::map::find $path : undef;
		2765
		2766	if ($map) {
1425	$map = $map->customise_for ($self) if $map;	2767	$map = $map->customise_for ($self);
		2768	$map = $check->($map, $x, $y, $self) if $check && $map;
		2769	} else {
		2770	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2771	}
1426		2772
1427	warn "entering ", $map->path, " at ($x, $y)\n"
1428	if $map;	2773	$map
		2774	};
1429		2775
		2776	if ($@) {
		2777	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2778	LOG llevError | logBacktrace, Carp::longmess $@;
		2779	}
		2780
		2781	if ($gen == $self->{_goto_generation}) {
		2782	delete $self->{_goto_generation};
1430	$self->leave_link ($map, $x, $y);	2783	$self->leave_link ($map, $x, $y);
		2784	}
		2785
		2786	$done->($self) if $done;
1431	})->prio (1);	2787	})->prio (1);
1432	}	2788	}
1433		2789
1434	=item $player_object->enter_exit ($exit_object)	2790	=item $player_object->enter_exit ($exit_object)
1435		2791
…		…
1437		2793
1438	sub parse_random_map_params {	2794	sub parse_random_map_params {
1439	my ($spec) = @_;	2795	my ($spec) = @_;
1440		2796
1441	my $rmp = { # defaults	2797	my $rmp = { # defaults
1442	xsize => 10,	2798	xsize => (cf::rndm 15, 40),
1443	ysize => 10,	2799	ysize => (cf::rndm 15, 40),
		2800	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2801	#layout => string,
1444	};	2802	};
1445		2803
1446	for (split /\n/, $spec) {	2804	for (split /\n/, $spec) {
1447	my ($k, $v) = split /\s+/, $_, 2;	2805	my ($k, $v) = split /\s+/, $_, 2;
1448		2806
…		…
1460	# that depends on the exit object	2818	# that depends on the exit object
1461		2819
1462	my $rmp = parse_random_map_params $exit->msg;	2820	my $rmp = parse_random_map_params $exit->msg;
1463		2821
1464	if ($exit->map) {	2822	if ($exit->map) {
1465	$rmp->{region} = $exit->map->region_name;	2823	$rmp->{region} = $exit->region->name;
1466	$rmp->{origin_map} = $exit->map->path;	2824	$rmp->{origin_map} = $exit->map->path;
1467	$rmp->{origin_x} = $exit->x;	2825	$rmp->{origin_x} = $exit->x;
1468	$rmp->{origin_y} = $exit->y;	2826	$rmp->{origin_y} = $exit->y;
		2827
		2828	$exit->map->touch;
1469	}	2829	}
1470		2830
1471	$rmp->{random_seed} ||= $exit->random_seed;	2831	$rmp->{random_seed} ||= $exit->random_seed;
1472		2832
1473	my $data = cf::to_json $rmp;	2833	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1474	my $md5 = Digest::MD5::md5_hex $data;	2834	my $md5 = Digest::MD5::md5_hex $data;
		2835	my $meta = "$RANDOMDIR/$md5.meta";
1475		2836
1476	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2837	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1477	aio_write $fh, 0, (length $data), $data, 0;	2838	aio_write $fh, 0, (length $data), $data, 0;
		2839	undef $fh;
		2840	aio_rename "$meta~", $meta;
1478		2841
		2842	my $slaying = "?random/$md5";
		2843
		2844	if ($exit->valid) {
1479	$exit->slaying ("?random/$md5");	2845	$exit->slaying ("?random/$md5");
1480	$exit->msg (undef);	2846	$exit->msg (undef);
		2847	}
1481	}	2848	}
1482	}	2849	}
1483		2850
1484	sub cf::object::player::enter_exit {	2851	sub cf::object::player::enter_exit {
1485	my ($self, $exit) = @_;	2852	my ($self, $exit) = @_;
1486		2853
1487	return unless $self->type == cf::PLAYER;	2854	return unless $self->type == cf::PLAYER;
1488		2855
1489	$self->enter_link;	2856	$self->enter_link;
1490		2857
1491	(Coro::async {	2858	(async {
		2859	$Coro::current->{desc} = "enter_exit";
		2860
1492	unless (eval {	2861	unless (eval {
		2862	$self->deactivate_recursive; # just to be sure
1493		2863
		2864	# random map handling
		2865	{
		2866	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2867
1494	prepare_random_map $exit	2868	prepare_random_map $exit
1495	if $exit->slaying eq "/!";	2869	if $exit->slaying eq "/!";
		2870	}
1496		2871
1497	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2872	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1498	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2873	my $x = $exit->stats->hp;
		2874	my $y = $exit->stats->sp;
1499		2875
		2876	$self->goto ($map, $x, $y);
		2877
		2878	# if exit is damned, update players death & WoR home-position
		2879	$self->contr->savebed ($map, $x, $y)
		2880	if $exit->flag (cf::FLAG_DAMNED);
		2881
1500	1;	2882	1
1501	}) {	2883	}) {
1502	$self->message ("Something went wrong deep within the crossfire server. "	2884	$self->message ("Something went wrong deep within the deliantra server. "
1503	. "I'll try to bring you back to the map you were before. "	2885	. "I'll try to bring you back to the map you were before. "
1504	. "Please report this to the dungeon master",	2886	. "Please report this to the dungeon master!",
1505	cf::NDI_UNIQUE | cf::NDI_RED);	2887	cf::NDI_UNIQUE | cf::NDI_RED);
1506		2888
1507	warn "ERROR in enter_exit: $@";	2889	error "ERROR in enter_exit: $@";
1508	$self->leave_link;	2890	$self->leave_link;
1509	}	2891	}
1510	})->prio (1);	2892	})->prio (1);
1511	}	2893	}
1512		2894
…		…
1523		2905
1524	sub cf::client::send_drawinfo {	2906	sub cf::client::send_drawinfo {
1525	my ($self, $text, $flags) = @_;	2907	my ($self, $text, $flags) = @_;
1526		2908
1527	utf8::encode $text;	2909	utf8::encode $text;
1528	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2910	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1529	}	2911	}
1530		2912
		2913	=item $client->send_big_packet ($pkt)
		2914
		2915	Like C<send_packet>, but tries to compress large packets, and fragments
		2916	them as required.
		2917
		2918	=cut
		2919
		2920	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2921
		2922	sub cf::client::send_big_packet {
		2923	my ($self, $pkt) = @_;
		2924
		2925	# try lzf for large packets
		2926	$pkt = "lzf " . Compress::LZF::compress $pkt
		2927	if 1024 <= length $pkt and $self->{can_lzf};
		2928
		2929	# split very large packets
		2930	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2931	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2932	$pkt = "frag";
		2933	}
		2934
		2935	$self->send_packet ($pkt);
		2936	}
		2937
		2938	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2939
		2940	Send a drawinfo or msg packet to the client, formatting the msg for the
		2941	client if neccessary. C<$type> should be a string identifying the type of
		2942	the message, with C<log> being the default. If C<$color> is negative, suppress
		2943	the message unless the client supports the msg packet.
		2944
		2945	=cut
		2946
		2947	# non-persistent channels (usually the info channel)
		2948	our %CHANNEL = (
		2949	"c/motd" => {
		2950	id => "infobox",
		2951	title => "MOTD",
		2952	reply => undef,
		2953	tooltip => "The message of the day",
		2954	},
		2955	"c/identify" => {
		2956	id => "infobox",
		2957	title => "Identify",
		2958	reply => undef,
		2959	tooltip => "Items recently identified",
		2960	},
		2961	"c/examine" => {
		2962	id => "infobox",
		2963	title => "Examine",
		2964	reply => undef,
		2965	tooltip => "Signs and other items you examined",
		2966	},
		2967	"c/shopinfo" => {
		2968	id => "infobox",
		2969	title => "Shop Info",
		2970	reply => undef,
		2971	tooltip => "What your bargaining skill tells you about the shop",
		2972	},
		2973	"c/book" => {
		2974	id => "infobox",
		2975	title => "Book",
		2976	reply => undef,
		2977	tooltip => "The contents of a note or book",
		2978	},
		2979	"c/lookat" => {
		2980	id => "infobox",
		2981	title => "Look",
		2982	reply => undef,
		2983	tooltip => "What you saw there",
		2984	},
		2985	"c/who" => {
		2986	id => "infobox",
		2987	title => "Players",
		2988	reply => undef,
		2989	tooltip => "Shows players who are currently online",
		2990	},
		2991	"c/body" => {
		2992	id => "infobox",
		2993	title => "Body Parts",
		2994	reply => undef,
		2995	tooltip => "Shows which body parts you posess and are available",
		2996	},
		2997	"c/statistics" => {
		2998	id => "infobox",
		2999	title => "Statistics",
		3000	reply => undef,
		3001	tooltip => "Shows your primary statistics",
		3002	},
		3003	"c/skills" => {
		3004	id => "infobox",
		3005	title => "Skills",
		3006	reply => undef,
		3007	tooltip => "Shows your experience per skill and item power",
		3008	},
		3009	"c/shopitems" => {
		3010	id => "infobox",
		3011	title => "Shop Items",
		3012	reply => undef,
		3013	tooltip => "Shows the items currently for sale in this shop",
		3014	},
		3015	"c/resistances" => {
		3016	id => "infobox",
		3017	title => "Resistances",
		3018	reply => undef,
		3019	tooltip => "Shows your resistances",
		3020	},
		3021	"c/pets" => {
		3022	id => "infobox",
		3023	title => "Pets",
		3024	reply => undef,
		3025	tooltip => "Shows information abotu your pets/a specific pet",
		3026	},
		3027	"c/perceiveself" => {
		3028	id => "infobox",
		3029	title => "Perceive Self",
		3030	reply => undef,
		3031	tooltip => "You gained detailed knowledge about yourself",
		3032	},
		3033	"c/uptime" => {
		3034	id => "infobox",
		3035	title => "Uptime",
		3036	reply => undef,
		3037	tooltip => "How long the server has been running since last restart",
		3038	},
		3039	"c/mapinfo" => {
		3040	id => "infobox",
		3041	title => "Map Info",
		3042	reply => undef,
		3043	tooltip => "Information related to the maps",
		3044	},
		3045	"c/party" => {
		3046	id => "party",
		3047	title => "Party",
		3048	reply => "gsay ",
		3049	tooltip => "Messages and chat related to your party",
		3050	},
		3051	"c/death" => {
		3052	id => "death",
		3053	title => "Death",
		3054	reply => undef,
		3055	tooltip => "Reason for and more info about your most recent death",
		3056	},
		3057	"c/say" => $SAY_CHANNEL,
		3058	"c/chat" => $CHAT_CHANNEL,
		3059	);
		3060
		3061	sub cf::client::send_msg {
		3062	my ($self, $channel, $msg, $color, @extra) = @_;
		3063
		3064	$msg = $self->pl->expand_cfpod ($msg)
		3065	unless $color & cf::NDI_VERBATIM;
		3066
		3067	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3068
		3069	# check predefined channels, for the benefit of C
		3070	if ($CHANNEL{$channel}) {
		3071	$channel = $CHANNEL{$channel};
		3072
		3073	$self->ext_msg (channel_info => $channel);
		3074	$channel = $channel->{id};
		3075
		3076	} elsif (ref $channel) {
		3077	# send meta info to client, if not yet sent
		3078	unless (exists $self->{channel}{$channel->{id}}) {
		3079	$self->{channel}{$channel->{id}} = $channel;
		3080	$self->ext_msg (channel_info => $channel);
		3081	}
		3082
		3083	$channel = $channel->{id};
		3084	}
		3085
		3086	return unless @extra || length $msg;
		3087
		3088	# default colour, mask it out
		3089	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3090	if $color & cf::NDI_DEF;
		3091
		3092	my $pkt = "msg "
		3093	. $self->{json_coder}->encode (
		3094	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3095	);
		3096
		3097	$self->send_big_packet ($pkt);
		3098	}
		3099
		3100	=item $client->ext_msg ($type, @msg)
		3101
		3102	Sends an ext event to the client.
		3103
		3104	=cut
		3105
		3106	sub cf::client::ext_msg($$@) {
		3107	my ($self, $type, @msg) = @_;
		3108
		3109	if ($self->extcmd == 2) {
		3110	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3111	} elsif ($self->extcmd == 1) { # TODO: remove
		3112	push @msg, msgtype => "event_$type";
		3113	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3114	}
		3115	}
		3116
		3117	=item $client->ext_reply ($msgid, @msg)
		3118
		3119	Sends an ext reply to the client.
		3120
		3121	=cut
		3122
		3123	sub cf::client::ext_reply($$@) {
		3124	my ($self, $id, @msg) = @_;
		3125
		3126	if ($self->extcmd == 2) {
		3127	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3128	} elsif ($self->extcmd == 1) {
		3129	#TODO: version 1, remove
		3130	unshift @msg, msgtype => "reply", msgid => $id;
		3131	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3132	}
		3133	}
1531		3134
1532	=item $success = $client->query ($flags, "text", \&cb)	3135	=item $success = $client->query ($flags, "text", \&cb)
1533		3136
1534	Queues a query to the client, calling the given callback with	3137	Queues a query to the client, calling the given callback with
1535	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3138	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1536	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3139	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1537		3140
1538	Queries can fail, so check the return code. Or don't, as queries will become	3141	Queries can fail, so check the return code. Or don't, as queries will
1539	reliable at some point in the future.	3142	become reliable at some point in the future.
1540		3143
1541	=cut	3144	=cut
1542		3145
1543	sub cf::client::query {	3146	sub cf::client::query {
1544	my ($self, $flags, $text, $cb) = @_;	3147	my ($self, $flags, $text, $cb) = @_;
…		…
1552	utf8::encode $text;	3155	utf8::encode $text;
1553	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3156	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1554		3157
1555	$self->send_packet ($self->{query_queue}[0][0])	3158	$self->send_packet ($self->{query_queue}[0][0])
1556	if @{ $self->{query_queue} } == 1;	3159	if @{ $self->{query_queue} } == 1;
		3160
		3161	1
1557	}	3162	}
1558		3163
1559	cf::client->attach (	3164	cf::client->attach (
		3165	on_connect => sub {
		3166	my ($ns) = @_;
		3167
		3168	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3169	},
1560	on_reply => sub {	3170	on_reply => sub {
1561	my ($ns, $msg) = @_;	3171	my ($ns, $msg) = @_;
1562		3172
1563	# this weird shuffling is so that direct followup queries	3173	# this weird shuffling is so that direct followup queries
1564	# get handled first	3174	# get handled first
1565	my $queue = delete $ns->{query_queue};	3175	my $queue = delete $ns->{query_queue}
		3176	or return; # be conservative, not sure how that can happen, but we saw a crash here
1566		3177
1567	(shift @$queue)->[1]->($msg);	3178	(shift @$queue)->[1]->($msg);
		3179	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1568		3180
1569	push @{ $ns->{query_queue} }, @$queue;	3181	push @{ $ns->{query_queue} }, @$queue;
1570		3182
1571	if (@{ $ns->{query_queue} } == @$queue) {	3183	if (@{ $ns->{query_queue} } == @$queue) {
1572	if (@$queue) {	3184	if (@$queue) {
…		…
1574	} else {	3186	} else {
1575	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3187	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1576	}	3188	}
1577	}	3189	}
1578	},	3190	},
		3191	on_exticmd => sub {
		3192	my ($ns, $buf) = @_;
		3193
		3194	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3195
		3196	if (ref $msg) {
		3197	my ($type, $reply, @payload) =
		3198	"ARRAY" eq ref $msg
		3199	? @$msg
		3200	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3201
		3202	my @reply;
		3203
		3204	if (my $cb = $EXTICMD{$type}) {
		3205	@reply = $cb->($ns, @payload);
		3206	}
		3207
		3208	$ns->ext_reply ($reply, @reply)
		3209	if $reply;
		3210
		3211	} else {
		3212	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3213	}
		3214
		3215	cf::override;
		3216	},
1579	);	3217	);
1580		3218
1581	=item $client->coro (\&cb)	3219	=item $client->async (\&cb)
1582		3220
1583	Create a new coroutine, running the specified callback. The coroutine will	3221	Create a new coroutine, running the specified callback. The coroutine will
1584	be automatically cancelled when the client gets destroyed (e.g. on logout,	3222	be automatically cancelled when the client gets destroyed (e.g. on logout,
1585	or loss of connection).	3223	or loss of connection).
1586		3224
1587	=cut	3225	=cut
1588		3226
1589	sub cf::client::coro {	3227	sub cf::client::async {
1590	my ($self, $cb) = @_;	3228	my ($self, $cb) = @_;
1591		3229
1592	my $coro; $coro = async {	3230	my $coro = &Coro::async ($cb);
1593	eval {
1594	$cb->();
1595	};
1596	warn $@ if $@;
1597	};
1598		3231
1599	$coro->on_destroy (sub {	3232	$coro->on_destroy (sub {
1600	delete $self->{_coro}{$coro+0};	3233	delete $self->{_coro}{$coro+0};
1601	});	3234	});
1602		3235
…		…
1604		3237
1605	$coro	3238	$coro
1606	}	3239	}
1607		3240
1608	cf::client->attach (	3241	cf::client->attach (
1609	on_destroy => sub {	3242	on_client_destroy => sub {
1610	my ($ns) = @_;	3243	my ($ns) = @_;
1611		3244
1612	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3245	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1613	},	3246	},
1614	);	3247	);
…		…
1629	our $safe = new Safe "safe";	3262	our $safe = new Safe "safe";
1630	our $safe_hole = new Safe::Hole;	3263	our $safe_hole = new Safe::Hole;
1631		3264
1632	$SIG{FPE} = 'IGNORE';	3265	$SIG{FPE} = 'IGNORE';
1633		3266
1634	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3267	$safe->permit_only (Opcode::opset qw(
		3268	:base_core :base_mem :base_orig :base_math :base_loop
		3269	grepstart grepwhile mapstart mapwhile
		3270	sort time
		3271	));
1635		3272
1636	# here we export the classes and methods available to script code	3273	# here we export the classes and methods available to script code
1637		3274
1638	=pod	3275	=pod
1639		3276
1640	The following fucntions and emthods are available within a safe environment:	3277	The following functions and methods are available within a safe environment:
1641		3278
1642	cf::object contr pay_amount pay_player map	3279	cf::object
		3280	contr pay_amount pay_player map x y force_find force_add destroy
		3281	insert remove name archname title slaying race decrease split
		3282	value
		3283
1643	cf::object::player player	3284	cf::object::player
1644	cf::player peaceful	3285	player
1645	cf::map trigger	3286
		3287	cf::player
		3288	peaceful
		3289
		3290	cf::map
		3291	trigger
1646		3292
1647	=cut	3293	=cut
1648		3294
1649	for (	3295	for (
1650	["cf::object" => qw(contr pay_amount pay_player map)],	3296	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3297	insert remove inv nrof name archname title slaying race
		3298	decrease split destroy change_exp value msg lore send_msg)],
1651	["cf::object::player" => qw(player)],	3299	["cf::object::player" => qw(player)],
1652	["cf::player" => qw(peaceful)],	3300	["cf::player" => qw(peaceful send_msg)],
1653	["cf::map" => qw(trigger)],	3301	["cf::map" => qw(trigger)],
1654	) {	3302	) {
1655	no strict 'refs';
1656	my ($pkg, @funs) = @$_;	3303	my ($pkg, @funs) = @$_;
1657	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3304	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1658	for @funs;	3305	for @funs;
1659	}	3306	}
1660		3307
…		…
1675		3322
1676	my $qcode = $code;	3323	my $qcode = $code;
1677	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3324	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1678	$qcode =~ s/\n/\\n/g;	3325	$qcode =~ s/\n/\\n/g;
1679		3326
		3327	%vars = (_dummy => 0) unless %vars;
		3328
		3329	my @res;
1680	local $_;	3330	local $_;
1681	local @safe::cf::_safe_eval_args = values %vars;
1682		3331
1683	my $eval =	3332	my $eval =
1684	"do {\n"	3333	"do {\n"
1685	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3334	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1686	. "#line 0 \"{$qcode}\"\n"	3335	. "#line 0 \"{$qcode}\"\n"
1687	. $code	3336	. $code
1688	. "\n}"	3337	. "\n}"
1689	;	3338	;
1690		3339
		3340	if ($CFG{safe_eval}) {
1691	sub_generation_inc;	3341	sub_generation_inc;
		3342	local @safe::cf::_safe_eval_args = values %vars;
1692	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3343	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1693	sub_generation_inc;	3344	sub_generation_inc;
		3345	} else {
		3346	local @cf::_safe_eval_args = values %vars;
		3347	@res = wantarray ? eval eval : scalar eval $eval;
		3348	}
1694		3349
1695	if ($@) {	3350	if ($@) {
1696	warn "$@";	3351	warn "$@",
1697	warn "while executing safe code '$code'\n";	3352	"while executing safe code '$code'\n",
1698	warn "with arguments " . (join " ", %vars) . "\n";	3353	"with arguments " . (join " ", %vars) . "\n";
1699	}	3354	}
1700		3355
1701	wantarray ? @res : $res[0]	3356	wantarray ? @res : $res[0]
1702	}	3357	}
1703		3358
…		…
1717	=cut	3372	=cut
1718		3373
1719	sub register_script_function {	3374	sub register_script_function {
1720	my ($fun, $cb) = @_;	3375	my ($fun, $cb) = @_;
1721		3376
1722	no strict 'refs';	3377	$fun = "safe::$fun" if $CFG{safe_eval};
1723	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3378	*$fun = $safe_hole->wrap ($cb);
1724	}	3379	}
1725		3380
1726	=back	3381	=back
1727		3382
1728	=cut	3383	=cut
1729		3384
1730	#############################################################################	3385	#############################################################################
		3386	# the server's init and main functions
1731		3387
1732	=head2 EXTENSION DATABASE SUPPORT	3388	sub load_facedata($) {
		3389	my ($path) = @_;
1733		3390
1734	Crossfire maintains a very simple database for extension use. It can	3391	# HACK to clear player env face cache, we need some signal framework
1735	currently store anything that can be serialised using Storable, which	3392	# for this (global event?)
1736	excludes objects.	3393	%ext::player_env::MUSIC_FACE_CACHE = ();
1737		3394
1738	The parameter C<$family> should best start with the name of the extension	3395	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1739	using it, it should be unique.
1740		3396
1741	=over 4	3397	trace "loading facedata from $path\n";
1742		3398
1743	=item $hashref = cf::db_get $family	3399	0 < aio_load $path, my $facedata
		3400	or die "$path: $!";
1744		3401
1745	Return a hashref for use by the extension C<$family>, which can be	3402	$facedata = Coro::Storable::thaw $facedata;
1746	modified. After modifications, you have to call C<cf::db_dirty> or
1747	C<cf::db_sync>.
1748		3403
1749	=item $value = cf::db_get $family => $key	3404	$facedata->{version} == 2
		3405	or cf::cleanup "$path: version mismatch, cannot proceed.";
1750		3406
1751	Returns a single value from the database	3407	# patch in the exptable
1752		3408	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1753	=item cf::db_put $family => $hashref	3409	$facedata->{resource}{"res/exp_table"} = {
1754		3410	type => FT_RSRC,
1755	Stores the given family hashref into the database. Updates are delayed, if	3411	data => $exp_table,
1756	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3412	hash => (Digest::MD5::md5 $exp_table),
1757
1758	=item cf::db_put $family => $key => $value
1759
1760	Stores the given C<$value> in the family hash. Updates are delayed, if you
1761	want the data to be synced to disk immediately, use C<cf::db_sync>.
1762
1763	=item cf::db_dirty
1764
1765	Marks the database as dirty, to be updated at a later time.
1766
1767	=item cf::db_sync
1768
1769	Immediately write the database to disk I<if it is dirty>.
1770
1771	=cut
1772
1773	our $DB;
1774
1775	{
1776	my $path = cf::localdir . "/database.pst";
1777
1778	sub db_load() {
1779	warn "loading database $path\n";#d# remove later
1780	$DB = stat $path ? Storable::retrieve $path : { };
1781	}
1782
1783	my $pid;
1784
1785	sub db_save() {
1786	warn "saving database $path\n";#d# remove later
1787	waitpid $pid, 0 if $pid;
1788	if (0 == ($pid = fork)) {
1789	$DB->{_meta}{version} = 1;
1790	Storable::nstore $DB, "$path~";
1791	rename "$path~", $path;
1792	cf::_exit 0 if defined $pid;
1793	}
1794	}
1795
1796	my $dirty;
1797
1798	sub db_sync() {
1799	db_save if $dirty;
1800	undef $dirty;
1801	}
1802
1803	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1804	db_sync;
1805	});	3413	};
		3414	cf::cede_to_tick;
1806		3415
1807	sub db_dirty() {
1808	$dirty = 1;
1809	$idle->start;
1810	}	3416	{
		3417	my $faces = $facedata->{faceinfo};
1811		3418
1812	sub db_get($;$) {	3419	while (my ($face, $info) = each %$faces) {
1813	@_ >= 2	3420	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1814	? $DB->{$_[0]}{$_[1]}
1815	: ($DB->{$_[0]} ||= { })
1816	}
1817		3421
1818	sub db_put($$;$) {	3422	cf::face::set_visibility $idx, $info->{visibility};
1819	if (@_ >= 3) {	3423	cf::face::set_magicmap $idx, $info->{magicmap};
1820	$DB->{$_[0]}{$_[1]} = $_[2];	3424	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1821	} else {	3425	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1822	$DB->{$_[0]} = $_[1];
1823	}
1824	db_dirty;
1825	}
1826		3426
1827	cf::global->attach (	3427	cf::cede_to_tick;
1828	prio => 10000,
1829	on_cleanup => sub {
1830	db_sync;
1831	},	3428	}
1832	);
1833	}
1834		3429
1835	#############################################################################	3430	while (my ($face, $info) = each %$faces) {
1836	# the server's main()	3431	next unless $info->{smooth};
1837		3432
1838	sub cfg_load {	3433	my $idx = cf::face::find $face
1839	open my $fh, "<:utf8", cf::confdir . "/config"	3434	or next;
1840	or return;
1841		3435
1842	local $/;	3436	if (my $smooth = cf::face::find $info->{smooth}) {
1843	*CFG = YAML::Syck::Load <$fh>;	3437	cf::face::set_smooth $idx, $smooth;
		3438	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3439	} else {
		3440	error "smooth face '$info->{smooth}' not found for face '$face'";
		3441	}
		3442
		3443	cf::cede_to_tick;
		3444	}
		3445	}
		3446
		3447	{
		3448	my $anims = $facedata->{animinfo};
		3449
		3450	while (my ($anim, $info) = each %$anims) {
		3451	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3452	cf::cede_to_tick;
		3453	}
		3454
		3455	cf::anim::invalidate_all; # d'oh
		3456	}
		3457
		3458	{
		3459	my $res = $facedata->{resource};
		3460
		3461	while (my ($name, $info) = each %$res) {
		3462	if (defined $info->{type}) {
		3463	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3464
		3465	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3466	cf::face::set_type $idx, $info->{type};
		3467	} else {
		3468	$RESOURCE{$name} = $info; # unused
		3469	}
		3470
		3471	cf::cede_to_tick;
		3472	}
		3473	}
		3474
		3475	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3476
		3477	1
		3478	}
		3479
		3480	register_exticmd fx_want => sub {
		3481	my ($ns, $want) = @_;
		3482
		3483	while (my ($k, $v) = each %$want) {
		3484	$ns->fx_want ($k, $v);
		3485	}
		3486	};
		3487
		3488	sub load_resource_file($) {
		3489	my $guard = lock_acquire "load_resource_file";
		3490
		3491	my $status = load_resource_file_ $_[0];
		3492	get_slot 0.1, 100;
		3493	cf::arch::commit_load;
		3494
		3495	$status
		3496	}
		3497
		3498	sub reload_regions {
		3499	# HACK to clear player env face cache, we need some signal framework
		3500	# for this (global event?)
		3501	%ext::player_env::MUSIC_FACE_CACHE = ();
		3502
		3503	load_resource_file "$MAPDIR/regions"
		3504	or die "unable to load regions file\n";
		3505
		3506	for (cf::region::list) {
		3507	$_->{match} = qr/$_->{match}/
		3508	if exists $_->{match};
		3509	}
		3510	}
		3511
		3512	sub reload_facedata {
		3513	load_facedata "$DATADIR/facedata"
		3514	or die "unable to load facedata\n";
		3515	}
		3516
		3517	sub reload_archetypes {
		3518	load_resource_file "$DATADIR/archetypes"
		3519	or die "unable to load archetypes\n";
		3520	}
		3521
		3522	sub reload_treasures {
		3523	load_resource_file "$DATADIR/treasures"
		3524	or die "unable to load treasurelists\n";
		3525	}
		3526
		3527	sub reload_sound {
		3528	trace "loading sound config from $DATADIR/sound\n";
		3529
		3530	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3531	or die "$DATADIR/sound $!";
		3532
		3533	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3534
		3535	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3536	my $sound = $soundconf->{compat}[$_]
		3537	or next;
		3538
		3539	my $face = cf::face::find "sound/$sound->[1]";
		3540	cf::sound::set $sound->[0] => $face;
		3541	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3542	}
		3543
		3544	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3545	my $face = cf::face::find "sound/$v";
		3546	cf::sound::set $k => $face;
		3547	}
		3548	}
		3549
		3550	sub reload_resources {
		3551	trace "reloading resource files...\n";
		3552
		3553	reload_exp_table;
		3554	reload_materials;
		3555	reload_facedata;
		3556	reload_sound;
		3557	reload_archetypes;
		3558	reload_regions;
		3559	reload_treasures;
		3560
		3561	trace "finished reloading resource files\n";
		3562	}
		3563
		3564	sub reload_config {
		3565	trace "reloading config file...\n";
		3566
		3567	0 < aio_load "$CONFDIR/config", my $config
		3568	or die "$CONFDIR/config: $!";
		3569
		3570	utf8::decode $config;
		3571	*CFG = yaml_load $config;
		3572
		3573	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3574
		3575	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3576	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3577
		3578	if (exists $CFG{mlockall}) {
		3579	eval {
		3580	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3581	and die "WARNING: m(un)lockall failed: $!\n";
		3582	};
		3583	warn $@ if $@;
		3584	}
		3585	}
		3586
		3587	sub pidfile() {
		3588	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3589	or die "$PIDFILE: $!";
		3590	flock $fh, &Fcntl::LOCK_EX
		3591	or die "$PIDFILE: flock: $!";
		3592	$fh
		3593	}
		3594
		3595	# make sure only one server instance is running at any one time
		3596	sub atomic {
		3597	my $fh = pidfile;
		3598
		3599	my $pid = <$fh>;
		3600	kill 9, $pid if $pid > 0;
		3601
		3602	seek $fh, 0, 0;
		3603	print $fh $$;
		3604	}
		3605
		3606	sub main_loop {
		3607	trace "EV::loop starting\n";
		3608	if (1) {
		3609	EV::loop;
		3610	}
		3611	trace "EV::loop returned\n";
		3612	goto &main_loop unless $REALLY_UNLOOP;
1844	}	3613	}
1845		3614
1846	sub main {	3615	sub main {
		3616	cf::init_globals; # initialise logging
		3617
		3618	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3619	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3620	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3621	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3622
		3623	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3624
1847	# we must not ever block the main coroutine	3625	# we must not ever block the main coroutine
1848	local $Coro::idle = sub {	3626	local $Coro::idle = sub {
1849	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3627	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1850	(Coro::unblock_sub {	3628	(async {
1851	Event::one_event;	3629	$Coro::current->{desc} = "IDLE BUG HANDLER";
1852	})->();	3630	EV::loop EV::LOOP_ONESHOT;
		3631	})->prio (Coro::PRIO_MAX);
1853	};	3632	};
1854		3633
1855	cfg_load;	3634	evthread_start IO::AIO::poll_fileno;
1856	db_load;	3635
		3636	cf::sync_job {
		3637	cf::incloader::init ();
		3638
		3639	cf::init_anim;
		3640	cf::init_attackmess;
		3641	cf::init_dynamic;
		3642
		3643	cf::load_settings;
		3644
		3645	reload_resources;
		3646	reload_config;
		3647	db_init;
		3648
		3649	cf::init_uuid;
		3650	cf::init_signals;
		3651	cf::init_skills;
		3652
		3653	cf::init_beforeplay;
		3654
		3655	atomic;
		3656
1857	load_extensions;	3657	load_extensions;
1858	Event::loop;	3658
		3659	utime time, time, $RUNTIMEFILE;
		3660
		3661	# no (long-running) fork's whatsoever before this point(!)
		3662	use POSIX ();
		3663	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3664
		3665	(pop @POST_INIT)->(0) while @POST_INIT;
		3666	};
		3667
		3668	cf::object::thawer::errors_are_fatal 0;
		3669	info "parse errors in files are no longer fatal from this point on.\n";
		3670
		3671	my $free_main; $free_main = EV::idle sub {
		3672	undef $free_main;
		3673	undef &main; # free gobs of memory :)
		3674	};
		3675
		3676	goto &main_loop;
1859	}	3677	}
1860		3678
1861	#############################################################################	3679	#############################################################################
1862	# initialisation	3680	# initialisation and cleanup
1863		3681
		3682	# install some emergency cleanup handlers
		3683	BEGIN {
		3684	our %SIGWATCHER = ();
		3685	for my $signal (qw(INT HUP TERM)) {
		3686	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3687	cf::cleanup "SIG$signal";
		3688	};
		3689	}
		3690	}
		3691
		3692	sub write_runtime_sync {
		3693	my $t0 = AE::time;
		3694
		3695	# first touch the runtime file to show we are still running:
		3696	# the fsync below can take a very very long time.
		3697
		3698	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3699
		3700	my $guard = cf::lock_acquire "write_runtime";
		3701
		3702	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3703	or return;
		3704
		3705	my $value = $cf::RUNTIME + 90 + 10;
		3706	# 10 is the runtime save interval, for a monotonic clock
		3707	# 60 allows for the watchdog to kill the server.
		3708
		3709	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3710	and return;
		3711
		3712	# always fsync - this file is important
		3713	aio_fsync $fh
		3714	and return;
		3715
		3716	# touch it again to show we are up-to-date
		3717	aio_utime $fh, undef, undef;
		3718
		3719	close $fh
		3720	or return;
		3721
		3722	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3723	and return;
		3724
		3725	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3726
		3727	1
		3728	}
		3729
		3730	our $uuid_lock;
		3731	our $uuid_skip;
		3732
		3733	sub write_uuid_sync($) {
		3734	$uuid_skip ||= $_[0];
		3735
		3736	return if $uuid_lock;
		3737	local $uuid_lock = 1;
		3738
		3739	my $uuid = "$LOCALDIR/uuid";
		3740
		3741	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3742	or return;
		3743
		3744	my $value = uuid_seq uuid_cur;
		3745
		3746	unless ($value) {
		3747	info "cowardly refusing to write zero uuid value!\n";
		3748	return;
		3749	}
		3750
		3751	my $value = uuid_str $value + $uuid_skip;
		3752	$uuid_skip = 0;
		3753
		3754	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3755	and return;
		3756
		3757	# always fsync - this file is important
		3758	aio_fsync $fh
		3759	and return;
		3760
		3761	close $fh
		3762	or return;
		3763
		3764	aio_rename "$uuid~", $uuid
		3765	and return;
		3766
		3767	trace "uuid file written ($value).\n";
		3768
		3769	1
		3770
		3771	}
		3772
		3773	sub write_uuid($$) {
		3774	my ($skip, $sync) = @_;
		3775
		3776	$sync ? write_uuid_sync $skip
		3777	: async { write_uuid_sync $skip };
		3778	}
		3779
		3780	sub emergency_save() {
		3781	my $freeze_guard = cf::freeze_mainloop;
		3782
		3783	info "emergency_perl_save: enter\n";
		3784
		3785	# this is a trade-off: we want to be very quick here, so
		3786	# save all maps without fsync, and later call a global sync
		3787	# (which in turn might be very very slow)
		3788	local $USE_FSYNC = 0;
		3789
		3790	cf::sync_job {
		3791	cf::write_runtime_sync; # external watchdog should not bark
		3792
		3793	# use a peculiar iteration method to avoid tripping on perl
		3794	# refcount bugs in for. also avoids problems with players
		3795	# and maps saved/destroyed asynchronously.
		3796	info "emergency_perl_save: begin player save\n";
		3797	for my $login (keys %cf::PLAYER) {
		3798	my $pl = $cf::PLAYER{$login} or next;
		3799	$pl->valid or next;
		3800	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3801	$pl->save;
		3802	}
		3803	info "emergency_perl_save: end player save\n";
		3804
		3805	cf::write_runtime_sync; # external watchdog should not bark
		3806
		3807	info "emergency_perl_save: begin map save\n";
		3808	for my $path (keys %cf::MAP) {
		3809	my $map = $cf::MAP{$path} or next;
		3810	$map->valid or next;
		3811	$map->save;
		3812	}
		3813	info "emergency_perl_save: end map save\n";
		3814
		3815	cf::write_runtime_sync; # external watchdog should not bark
		3816
		3817	info "emergency_perl_save: begin database checkpoint\n";
		3818	BDB::db_env_txn_checkpoint $DB_ENV;
		3819	info "emergency_perl_save: end database checkpoint\n";
		3820
		3821	info "emergency_perl_save: begin write uuid\n";
		3822	write_uuid_sync 1;
		3823	info "emergency_perl_save: end write uuid\n";
		3824
		3825	cf::write_runtime_sync; # external watchdog should not bark
		3826
		3827	trace "emergency_perl_save: syncing database to disk";
		3828	BDB::db_env_txn_checkpoint $DB_ENV;
		3829
		3830	info "emergency_perl_save: starting sync\n";
		3831	IO::AIO::aio_sync sub {
		3832	info "emergency_perl_save: finished sync\n";
		3833	};
		3834
		3835	cf::write_runtime_sync; # external watchdog should not bark
		3836
		3837	trace "emergency_perl_save: flushing outstanding aio requests";
		3838	while (IO::AIO::nreqs || BDB::nreqs) {
		3839	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3840	}
		3841
		3842	cf::write_runtime_sync; # external watchdog should not bark
		3843	};
		3844
		3845	info "emergency_perl_save: leave\n";
		3846	}
		3847
		3848	sub post_cleanup {
		3849	my ($make_core) = @_;
		3850
		3851	IO::AIO::flush;
		3852
		3853	error Carp::longmess "post_cleanup backtrace"
		3854	if $make_core;
		3855
		3856	my $fh = pidfile;
		3857	unlink $PIDFILE if <$fh> == $$;
		3858	}
		3859
		3860	# a safer delete_package, copied from Symbol
		3861	sub clear_package($) {
		3862	my $pkg = shift;
		3863
		3864	# expand to full symbol table name if needed
		3865	unless ($pkg =~ /^main::.*::$/) {
		3866	$pkg = "main$pkg" if $pkg =~ /^::/;
		3867	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3868	$pkg .= '::' unless $pkg =~ /::$/;
		3869	}
		3870
		3871	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3872	my $stem_symtab = *{$stem}{HASH};
		3873
		3874	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3875	or return;
		3876
		3877	# clear all symbols
		3878	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3879	for my $name (keys %$leaf_symtab) {
		3880	_gv_clear *{"$pkg$name"};
		3881	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3882	}
		3883	}
		3884
1864	sub reload() {	3885	sub do_reload_perl() {
1865	# can/must only be called in main	3886	# can/must only be called in main
1866	if ($Coro::current != $Coro::main) {	3887	unless (in_main) {
1867	warn "can only reload from main coroutine\n";	3888	error "can only reload from main coroutine";
1868	return;	3889	return;
1869	}	3890	}
1870		3891
		3892	return if $RELOAD++;
		3893
		3894	my $t1 = AE::time;
		3895
		3896	while ($RELOAD) {
		3897	cf::get_slot 0.1, -1, "reload_perl";
1871	warn "reloading...";	3898	info "reloading...";
1872		3899
1873	local $FREEZE = 1;	3900	trace "entering sync_job";
		3901
		3902	cf::sync_job {
1874	cf::emergency_save;	3903	#cf::emergency_save;
1875		3904
1876	eval {
1877	# if anything goes wrong in here, we should simply crash as we already saved
1878
1879	# cancel all watchers
1880	for (Event::all_watchers) {
1881	$_->cancel if $_->data & WF_AUTOCANCEL;
1882	}
1883
1884	# cancel all extension coros	3905	trace "cancelling all extension coros";
1885	$_->cancel for values %EXT_CORO;	3906	$_->cancel for values %EXT_CORO;
1886	%EXT_CORO = ();	3907	%EXT_CORO = ();
1887		3908
1888	# unload all extensions	3909	trace "removing commands";
1889	for (@exts) {	3910	%COMMAND = ();
1890	warn "unloading <$_>";
1891	unload_extension $_;
1892	}
1893		3911
1894	# unload all modules loaded from $LIBDIR	3912	trace "removing ext/exti commands";
1895	while (my ($k, $v) = each %INC) {	3913	%EXTCMD = ();
1896	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3914	%EXTICMD = ();
1897		3915
1898	warn "removing <$k>";	3916	trace "unloading/nuking all extensions";
1899	delete $INC{$k};	3917	for my $pkg (@EXTS) {
		3918	trace "... unloading $pkg";
1900		3919
1901	$k =~ s/\.pm$//;
1902	$k =~ s/\//::/g;
1903
1904	if (my $cb = $k->can ("unload_module")) {	3920	if (my $cb = $pkg->can ("unload")) {
		3921	eval {
1905	$cb->();	3922	$cb->($pkg);
		3923	1
		3924	} or error "$pkg unloaded, but with errors: $@";
		3925	}
		3926
		3927	trace "... clearing $pkg";
		3928	clear_package $pkg;
1906	}	3929	}
1907		3930
1908	Symbol::delete_package $k;	3931	trace "unloading all perl modules loaded from $LIBDIR";
		3932	while (my ($k, $v) = each %INC) {
		3933	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3934
		3935	trace "... unloading $k";
		3936	delete $INC{$k};
		3937
		3938	$k =~ s/\.pm$//;
		3939	$k =~ s/\//::/g;
		3940
		3941	if (my $cb = $k->can ("unload_module")) {
		3942	$cb->();
		3943	}
		3944
		3945	clear_package $k;
1909	}	3946	}
1910		3947
1911	# sync database to disk
1912	cf::db_sync;
1913	IO::AIO::flush;
1914
1915	# get rid of safe::, as good as possible	3948	trace "getting rid of safe::, as good as possible";
1916	Symbol::delete_package "safe::$_"	3949	clear_package "safe::$_"
1917	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3950	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1918		3951
1919	# remove register_script_function callbacks	3952	trace "unloading cf.pm \"a bit\"";
1920	# TODO
1921
1922	# unload cf.pm "a bit"
1923	delete $INC{"cf.pm"};	3953	delete $INC{"cf.pm"};
		3954	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
1924		3955
1925	# don't, removes xs symbols, too,	3956	# don't, removes xs symbols, too,
1926	# and global variables created in xs	3957	# and global variables created in xs
1927	#Symbol::delete_package __PACKAGE__;	3958	#clear_package __PACKAGE__;
1928		3959
1929	# reload cf.pm	3960	info "unload completed, starting to reload now";
		3961
1930	warn "reloading cf.pm";	3962	trace "reloading cf.pm";
1931	require cf;	3963	require cf;
1932	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3964	cf::_connect_to_perl_1;
1933		3965
1934	# load config and database again	3966	trace "loading config and database again";
1935	cf::cfg_load;	3967	cf::reload_config;
1936	cf::db_load;
1937		3968
1938	# load extensions
1939	warn "load extensions";	3969	trace "loading extensions";
1940	cf::load_extensions;	3970	cf::load_extensions;
1941		3971
1942	# reattach attachments to objects	3972	if ($REATTACH_ON_RELOAD) {
1943	warn "reattach";	3973	trace "reattaching attachments to objects/players";
1944	_global_reattach;	3974	_global_reattach; # objects, sockets
		3975	trace "reattaching attachments to maps";
		3976	reattach $_ for values %MAP;
		3977	trace "reattaching attachments to players";
		3978	reattach $_ for values %PLAYER;
		3979	}
		3980
		3981	trace "running post_init jobs";
		3982	(pop @POST_INIT)->(1) while @POST_INIT;
		3983
		3984	trace "leaving sync_job";
		3985
		3986	1
		3987	} or do {
		3988	error $@;
		3989	cf::cleanup "error while reloading, exiting.";
		3990	};
		3991
		3992	info "reloaded";
		3993	--$RELOAD;
		3994	}
		3995
		3996	$t1 = AE::time - $t1;
		3997	info "reload completed in ${t1}s\n";
		3998	};
		3999
		4000	our $RELOAD_WATCHER; # used only during reload
		4001
		4002	sub reload_perl() {
		4003	# doing reload synchronously and two reloads happen back-to-back,
		4004	# coro crashes during coro_state_free->destroy here.
		4005
		4006	$RELOAD_WATCHER ||= cf::async {
		4007	Coro::AIO::aio_wait cache_extensions;
		4008
		4009	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4010	do_reload_perl;
		4011	undef $RELOAD_WATCHER;
		4012	};
1945	};	4013	};
1946
1947	if ($@) {
1948	warn $@;
1949	warn "error while reloading, exiting.";
1950	exit 1;
1951	}
1952
1953	warn "reloaded successfully";
1954	};
1955
1956	#############################################################################
1957
1958	unless ($LINK_MAP) {
1959	$LINK_MAP = cf::map::new;
1960
1961	$LINK_MAP->width (41);
1962	$LINK_MAP->height (41);
1963	$LINK_MAP->alloc;
1964	$LINK_MAP->path ("{link}");
1965	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1966	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1967
1968	# dirty hack because... archetypes are not yet loaded
1969	Event->timer (
1970	after => 2,
1971	cb => sub {
1972	$_[0]->w->cancel;
1973
1974	# provide some exits "home"
1975	my $exit = cf::object::new "exit";
1976
1977	$exit->slaying ($EMERGENCY_POSITION->[0]);
1978	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1979	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1980
1981	$LINK_MAP->insert ($exit->clone, 19, 19);
1982	$LINK_MAP->insert ($exit->clone, 19, 20);
1983	$LINK_MAP->insert ($exit->clone, 19, 21);
1984	$LINK_MAP->insert ($exit->clone, 20, 19);
1985	$LINK_MAP->insert ($exit->clone, 20, 21);
1986	$LINK_MAP->insert ($exit->clone, 21, 19);
1987	$LINK_MAP->insert ($exit->clone, 21, 20);
1988	$LINK_MAP->insert ($exit->clone, 21, 21);
1989
1990	$exit->destroy;
1991	});
1992
1993	$LINK_MAP->{deny_save} = 1;
1994	$LINK_MAP->{deny_reset} = 1;
1995
1996	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1997	}	4014	}
1998
1999	register "<global>", __PACKAGE__;
2000		4015
2001	register_command "reload" => sub {	4016	register_command "reload" => sub {
2002	my ($who, $arg) = @_;	4017	my ($who, $arg) = @_;
2003		4018
2004	if ($who->flag (FLAG_WIZ)) {	4019	if ($who->flag (FLAG_WIZ)) {
2005	$who->message ("start of reload.");
2006	reload;
2007	$who->message ("end of reload.");	4020	$who->message ("reloading server.");
		4021	async {
		4022	$Coro::current->{desc} = "perl_reload";
		4023	reload_perl;
		4024	};
2008	}	4025	}
2009	};	4026	};
2010		4027
2011	unshift @INC, $LIBDIR;	4028	#############################################################################
2012		4029
2013	$TICK_WATCHER = Event->timer (	4030	my $bug_warning = 0;
2014	reentrant => 0,	4031
2015	prio => 0,	4032	our @WAIT_FOR_TICK;
2016	at => $NEXT_TICK || $TICK,	4033	our @WAIT_FOR_TICK_BEGIN;
2017	data => WF_AUTOCANCEL,	4034
2018	cb => sub {	4035	sub wait_for_tick() {
2019	unless ($FREEZE) {	4036	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4037
		4038	my $signal = new Coro::Signal;
		4039	push @WAIT_FOR_TICK, $signal;
		4040	$signal->wait;
		4041	}
		4042
		4043	sub wait_for_tick_begin() {
		4044	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4045
		4046	my $signal = new Coro::Signal;
		4047	push @WAIT_FOR_TICK_BEGIN, $signal;
		4048	$signal->wait;
		4049	}
		4050
		4051	sub tick {
		4052	if ($Coro::current != $Coro::main) {
		4053	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4054	unless ++$bug_warning > 10;
		4055	return;
		4056	}
		4057
2020	cf::server_tick; # one server iteration	4058	cf::server_tick; # one server iteration
2021	$RUNTIME += $TICK;
2022	}
2023		4059
2024	$NEXT_TICK += $TICK;	4060	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2025		4061
2026	# if we are delayed by four ticks or more, skip them all	4062	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2027	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4063	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2028		4064	Coro::async_pool {
2029	$TICK_WATCHER->at ($NEXT_TICK);	4065	$Coro::current->{desc} = "runtime saver";
2030	$TICK_WATCHER->start;
2031	},
2032	);
2033
2034	IO::AIO::max_poll_time $TICK * 0.2;
2035
2036	Event->io (
2037	fd => IO::AIO::poll_fileno,
2038	poll => 'r',
2039	prio => 5,
2040	data => WF_AUTOCANCEL,
2041	cb => \&IO::AIO::poll_cb,
2042	);
2043
2044	Event->timer (
2045	data => WF_AUTOCANCEL,
2046	after => 0,
2047	interval => 10,
2048	cb => sub {
2049	(Coro::unblock_sub {
2050	write_runtime	4066	write_runtime_sync
2051	or warn "ERROR: unable to write runtime file: $!";	4067	or error "ERROR: unable to write runtime file: $!";
2052	})->();	4068	};
2053	},	4069	}
2054	);	4070
		4071	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4072	$sig->send;
		4073	}
		4074	while (my $sig = shift @WAIT_FOR_TICK) {
		4075	$sig->send;
		4076	}
		4077
		4078	$LOAD = ($NOW - $TICK_START) / $TICK;
		4079	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4080
		4081	if (0) {
		4082	if ($NEXT_TICK) {
		4083	my $jitter = $TICK_START - $NEXT_TICK;
		4084	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4085	debug "jitter $JITTER\n";#d#
		4086	}
		4087	}
		4088	}
		4089
		4090	{
		4091	# configure BDB
		4092
		4093	BDB::min_parallel 16;
		4094	BDB::max_poll_reqs $TICK * 0.1;
		4095	$AnyEvent::BDB::WATCHER->priority (1);
		4096
		4097	unless ($DB_ENV) {
		4098	$DB_ENV = BDB::db_env_create;
		4099	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4100	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4101	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4102	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4103	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4104
		4105	cf::sync_job {
		4106	eval {
		4107	BDB::db_env_open
		4108	$DB_ENV,
		4109	$BDBDIR,
		4110	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4111	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4112	0666;
		4113
		4114	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4115	};
		4116
		4117	cf::cleanup "db_env_open(db): $@" if $@;
		4118	};
		4119	}
		4120
		4121	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4122	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4123	};
		4124	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4125	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4126	};
		4127	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4128	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4129	};
		4130	}
		4131
		4132	{
		4133	# configure IO::AIO
		4134
		4135	IO::AIO::min_parallel 8;
		4136	IO::AIO::max_poll_time $TICK * 0.1;
		4137	undef $AnyEvent::AIO::WATCHER;
		4138	}
		4139
		4140	my $_log_backtrace;
		4141
		4142	sub _log_backtrace {
		4143	my ($msg, @addr) = @_;
		4144
		4145	$msg =~ s/\n//;
		4146
		4147	# limit the # of concurrent backtraces
		4148	if ($_log_backtrace < 2) {
		4149	++$_log_backtrace;
		4150	my $perl_bt = Carp::longmess $msg;
		4151	async {
		4152	$Coro::current->{desc} = "abt $msg";
		4153
		4154	my @bt = fork_call {
		4155	@addr = map { sprintf "%x", $_ } @addr;
		4156	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4157	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4158	or die "addr2line: $!";
		4159
		4160	my @funcs;
		4161	my @res = <$fh>;
		4162	chomp for @res;
		4163	while (@res) {
		4164	my ($func, $line) = splice @res, 0, 2, ();
		4165	push @funcs, "[$func] $line";
		4166	}
		4167
		4168	@funcs
		4169	};
		4170
		4171	LOG llevInfo, "[ABT] $perl_bt\n";
		4172	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4173	LOG llevInfo, "[ABT] $_\n" for @bt;
		4174	--$_log_backtrace;
		4175	};
		4176	} else {
		4177	LOG llevInfo, "[ABT] $msg\n";
		4178	LOG llevInfo, "[ABT] [suppressed]\n";
		4179	}
		4180	}
		4181
		4182	# load additional modules
		4183	require "cf/$_.pm" for @EXTRA_MODULES;
		4184	cf::_connect_to_perl_2;
		4185
		4186	END { cf::emergency_save }
2055		4187
2056	1	4188	1
2057		4189

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