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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 1.543 by root, Wed May 5 23:23:29 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 process
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
		252
112	=back	253	=back
113		254
114	=cut	255	=cut
115		256
116	BEGIN {	257	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	258	sub warn (@) { LOG llevWarn , join "", @_ }
		259	sub info (@) { LOG llevInfo , join "", @_ }
		260	sub debug(@) { LOG llevDebug, join "", @_ }
		261	sub trace(@) { LOG llevTrace, join "", @_ }
		262
		263	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	264	my $msg = join "", @_;
119	utf8::encode $msg;
120		265
121	$msg .= "\n"	266	$msg .= "\n"
122	unless $msg =~ /\n$/;	267	unless $msg =~ /\n$/;
123		268
124	LOG llevError, "cfperl: $msg";	269	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	270
126	}	271	LOG llevWarn, $msg;
		272	};
		273
		274	$Coro::State::DIEHOOK = sub {
		275	return unless $^S eq 0; # "eq", not "=="
		276
		277	error Carp::longmess $_[0];
		278
		279	if (in_main) {#d#
		280	error "DIEHOOK called in main context, Coro bug?\n";#d#
		281	return;#d#
		282	}#d#
		283
		284	# kill coroutine otherwise
		285	Coro::terminate
		286	};
127		287
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	288	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	289	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	290	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	291	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	292	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		293	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	294	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		295
135	# we bless all objects into (empty) derived classes to force a method lookup	296	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	297	# within the Safe compartment.
137	for my $pkg (qw(	298	for my $pkg (qw(
138	cf::global cf::attachable	299	cf::global cf::attachable
139	cf::object cf::object::player	300	cf::object cf::object::player
140	cf::client cf::player	301	cf::client cf::player
141	cf::arch cf::living	302	cf::arch cf::living
		303	cf::map cf::mapspace
142	cf::map cf::party cf::region	304	cf::party cf::region
143	)) {	305	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	306	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	307	}
147		308
148	$Event::DIED = sub {	309	$EV::DIED = sub {
149	warn "error in event callback: @_";	310	Carp::cluck "error in event callback: @_";
150	};	311	};
151		312
152	my %ext_pkg;	313	#############################################################################
153	my @exts;
154	my @hook;
155		314
156	=head2 UTILITY FUNCTIONS	315	=head2 UTILITY FUNCTIONS
157		316
158	=over 4	317	=over 4
159		318
160	=cut	319	=item dumpval $ref
161		320
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	321	=cut
163		322
		323	sub dumpval {
		324	eval {
		325	local $SIG{__DIE__};
		326	my $d;
		327	if (1) {
		328	$d = new Data::Dumper([$_[0]], ["*var"]);
		329	$d->Terse(1);
		330	$d->Indent(2);
		331	$d->Quotekeys(0);
		332	$d->Useqq(1);
		333	#$d->Bless(...);
		334	$d->Seen($_[1]) if @_ > 1;
		335	$d = $d->Dump();
		336	}
		337	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		338	$d
		339	} || "[unable to dump $_[0]: '$@']";
		340	}
		341
164	=item $ref = cf::from_json $json	342	=item $ref = cf::decode_json $json
165		343
166	Converts a JSON string into the corresponding perl data structure.	344	Converts a JSON string into the corresponding perl data structure.
167		345
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	346	=item $json = cf::encode_json $ref
176		347
177	Converts a perl data structure into its JSON representation.	348	Converts a perl data structure into its JSON representation.
178		349
179	=cut	350	=cut
180		351
181	sub to_json($) {	352	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	353
183	JSON::Syck::Dump $_[0]	354	sub encode_json($) { $json_coder->encode ($_[0]) }
		355	sub decode_json($) { $json_coder->decode ($_[0]) }
		356
		357	=item cf::post_init { BLOCK }
		358
		359	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		360	but I<before> the server starts ticking again.
		361
		362	The cdoeblock will have a single boolean argument to indicate whether this
		363	is a reload or not.
		364
		365	=cut
		366
		367	sub post_init(&) {
		368	push @POST_INIT, shift;
184	}	369	}
		370
		371	=item cf::lock_wait $string
		372
		373	Wait until the given lock is available. See cf::lock_acquire.
		374
		375	=item my $lock = cf::lock_acquire $string
		376
		377	Wait until the given lock is available and then acquires it and returns
		378	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		379	for example when the coroutine gets canceled), the lock is automatically
		380	returned.
		381
		382	Locks are *not* recursive, locking from the same coro twice results in a
		383	deadlocked coro.
		384
		385	Lock names should begin with a unique identifier (for example, cf::map::find
		386	uses map_find and cf::map::load uses map_load).
		387
		388	=item $locked = cf::lock_active $string
		389
		390	Return true if the lock is currently active, i.e. somebody has locked it.
		391
		392	=cut
		393
		394	our $LOCKS = new Coro::SemaphoreSet;
		395
		396	sub lock_wait($) {
		397	$LOCKS->wait ($_[0]);
		398	}
		399
		400	sub lock_acquire($) {
		401	$LOCKS->guard ($_[0])
		402	}
		403
		404	sub lock_active($) {
		405	$LOCKS->count ($_[0]) < 1
		406	}
		407
		408	sub freeze_mainloop {
		409	tick_inhibit_inc;
		410
		411	&Guard::guard (\&tick_inhibit_dec);
		412	}
		413
		414	=item cf::periodic $interval, $cb
		415
		416	Like EV::periodic, but randomly selects a starting point so that the actions
		417	get spread over time.
		418
		419	=cut
		420
		421	sub periodic($$) {
		422	my ($interval, $cb) = @_;
		423
		424	my $start = rand List::Util::min 180, $interval;
		425
		426	EV::periodic $start, $interval, 0, $cb
		427	}
		428
		429	=item cf::get_slot $time[, $priority[, $name]]
		430
		431	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		432	This call blocks and returns only when you have at least C<$time> seconds
		433	of cpu time till the next tick. The slot is only valid till the next cede.
		434
		435	The optional C<$name> can be used to identify the job to run. It might be
		436	used for statistical purposes and should identify the same time-class.
		437
		438	Useful for short background jobs.
		439
		440	=cut
		441
		442	our @SLOT_QUEUE;
		443	our $SLOT_QUEUE;
		444	our $SLOT_DECAY = 0.9;
		445
		446	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		447	$SLOT_QUEUE = Coro::async {
		448	$Coro::current->desc ("timeslot manager");
		449
		450	my $signal = new Coro::Signal;
		451	my $busy;
		452
		453	while () {
		454	next_job:
		455
		456	my $avail = cf::till_tick;
		457
		458	for (0 .. $#SLOT_QUEUE) {
		459	if ($SLOT_QUEUE[$_][0] <= $avail) {
		460	$busy = 0;
		461	my $job = splice @SLOT_QUEUE, $_, 1, ();
		462	$job->[2]->send;
		463	Coro::cede;
		464	goto next_job;
		465	} else {
		466	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		467	}
		468	}
		469
		470	if (@SLOT_QUEUE) {
		471	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		472	push @cf::WAIT_FOR_TICK, $signal;
		473	$signal->wait;
		474	} else {
		475	$busy = 0;
		476	Coro::schedule;
		477	}
		478	}
		479	};
		480
		481	sub get_slot($;$$) {
		482	return if tick_inhibit || $Coro::current == $Coro::main;
		483
		484	my ($time, $pri, $name) = @_;
		485
		486	$time = clamp $time, 0.01, $TICK * .6;
		487
		488	my $sig = new Coro::Signal;
		489
		490	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		491	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		492	$SLOT_QUEUE->ready;
		493	$sig->wait;
		494	}
		495
		496	=item cf::async { BLOCK }
		497
		498	Currently the same as Coro::async_pool, meaning you cannot use
		499	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		500	thing you are allowed to do is call C<prio> on it.
		501
		502	=cut
		503
		504	BEGIN { *async = \&Coro::async_pool }
185		505
186	=item cf::sync_job { BLOCK }	506	=item cf::sync_job { BLOCK }
187		507
188	The design of crossfire+ requires that the main coro ($Coro::main) is	508	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	509	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	510	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		511	acceptable.
191		512
192	If it must be done, put the blocking parts into C<sync_job>. This will run	513	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	514	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	515	server will be frozen during this time, so the block should either finish
195	fast or be very important.	516	fast or be very important.
…		…
197	=cut	518	=cut
198		519
199	sub sync_job(&) {	520	sub sync_job(&) {
200	my ($job) = @_;	521	my ($job) = @_;
201		522
202	if ($Coro::current == $Coro::main) {	523	if (in_main) {
		524	my $time = AE::time;
		525
203	# this is the main coro, too bad, we have to block	526	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	527	# till the operation succeeds, freezing the server :/
205		528
206	# TODO: use suspend/resume instead	529	#LOG llevError, Carp::longmess "sync job";#d#
207	# (but this is cancel-safe)	530
208	local $FREEZE = 1;	531	my $freeze_guard = freeze_mainloop;
209		532
210	my $busy = 1;	533	my $busy = 1;
211	my @res;	534	my @res;
212		535
213	(Coro::async {	536	(async {
		537	$Coro::current->desc ("sync job coro");
214	@res = eval { $job->() };	538	@res = eval { $job->() };
215	warn $@ if $@;	539	error $@ if $@;
216	undef $busy;	540	undef $busy;
217	})->prio (Coro::PRIO_MAX);	541	})->prio (Coro::PRIO_MAX);
218		542
219	while ($busy) {	543	while ($busy) {
		544	if (Coro::nready) {
220	Coro::cede_notself;	545	Coro::cede_notself;
221	Event::one_event unless Coro::nready;	546	} else {
		547	EV::loop EV::LOOP_ONESHOT;
222	}	548	}
		549	}
		550
		551	my $time = AE::time - $time;
		552
		553	$TICK_START += $time; # do not account sync jobs to server load
223		554
224	wantarray ? @res : $res[0]	555	wantarray ? @res : $res[0]
225	} else {	556	} else {
226	# we are in another coroutine, how wonderful, everything just works	557	# we are in another coroutine, how wonderful, everything just works
227		558
228	$job->()	559	$job->()
229	}	560	}
230	}	561	}
231		562
232	=item $coro = cf::coro { BLOCK }	563	=item $coro = cf::async_ext { BLOCK }
233		564
234	Creates and returns a new coro. This coro is automcatially being canceled	565	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	566	extension calling this is being unloaded.
236		567
237	=cut	568	=cut
238		569
239	sub coro(&) {	570	sub async_ext(&) {
240	my $cb = shift;	571	my $cb = shift;
241		572
242	my $coro; $coro = async {	573	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		574
249	$coro->on_destroy (sub {	575	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	576	delete $EXT_CORO{$coro+0};
251	});	577	});
252	$EXT_CORO{$coro+0} = $coro;	578	$EXT_CORO{$coro+0} = $coro;
253		579
254	$coro	580	$coro
255	}	581	}
256		582
257	sub write_runtime {	583	=item fork_call { }, $args
258	my $runtime = cf::localdir . "/runtime";
259		584
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	585	Executes the given code block with the given arguments in a seperate
261	or return;	586	process, returning the results. Everything must be serialisable with
		587	Coro::Storable. May, of course, block. Note that the executed sub may
		588	never block itself or use any form of event handling.
262		589
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	590	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		591
267	aio_fsync $fh	592	sub fork_call(&@) {
268	and return;	593	my ($cb, @args) = @_;
269		594
270	close $fh	595	# we seemingly have to make a local copy of the whole thing,
271	or return;	596	# otherwise perl prematurely frees the stuff :/
		597	# TODO: investigate and fix (likely this will be rather laborious)
272		598
273	aio_rename "$runtime~", $runtime	599	my @res = Coro::Util::fork_eval {
274	and return;	600	reset_signals;
		601	&$cb
		602	}, @args;
275		603
		604	wantarray ? @res : $res[-1]
		605	}
		606
		607	sub objinfo {
276	1	608	(
		609	"counter value" => cf::object::object_count,
		610	"objects created" => cf::object::create_count,
		611	"objects destroyed" => cf::object::destroy_count,
		612	"freelist size" => cf::object::free_count,
		613	"allocated objects" => cf::object::objects_size,
		614	"active objects" => cf::object::actives_size,
		615	)
		616	}
		617
		618	=item $coin = coin_from_name $name
		619
		620	=cut
		621
		622	our %coin_alias = (
		623	"silver" => "silvercoin",
		624	"silvercoin" => "silvercoin",
		625	"silvercoins" => "silvercoin",
		626	"gold" => "goldcoin",
		627	"goldcoin" => "goldcoin",
		628	"goldcoins" => "goldcoin",
		629	"platinum" => "platinacoin",
		630	"platinumcoin" => "platinacoin",
		631	"platinumcoins" => "platinacoin",
		632	"platina" => "platinacoin",
		633	"platinacoin" => "platinacoin",
		634	"platinacoins" => "platinacoin",
		635	"royalty" => "royalty",
		636	"royalties" => "royalty",
		637	);
		638
		639	sub coin_from_name($) {
		640	$coin_alias{$_[0]}
		641	? cf::arch::find $coin_alias{$_[0]}
		642	: undef
		643	}
		644
		645	=item $value = cf::db_get $family => $key
		646
		647	Returns a single value from the environment database.
		648
		649	=item cf::db_put $family => $key => $value
		650
		651	Stores the given C<$value> in the family. It can currently store binary
		652	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		653
		654	=item $db = cf::db_table "name"
		655
		656	Create and/or open a new database table. The string must not be "db" and must be unique
		657	within each server.
		658
		659	=cut
		660
		661	sub db_table($) {
		662	cf::error "db_get called from main context"
		663	if $Coro::current == $Coro::main;
		664
		665	my ($name) = @_;
		666	my $db = BDB::db_create $DB_ENV;
		667
		668	eval {
		669	$db->set_flags (BDB::CHKSUM);
		670
		671	utf8::encode $name;
		672	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		673	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		674	cf::cleanup "db_open(db): $!" if $!;
		675	};
		676	cf::cleanup "db_open(db): $@" if $@;
		677
		678	$db
		679	}
		680
		681	our $DB;
		682
		683	sub db_init {
		684	$DB ||= db_table "db";
		685	}
		686
		687	sub db_get($$) {
		688	my $key = "$_[0]/$_[1]";
		689
		690	cf::error "db_get called from main context"
		691	if $Coro::current == $Coro::main;
		692
		693	BDB::db_get $DB, undef, $key, my $data;
		694
		695	$! ? ()
		696	: $data
		697	}
		698
		699	sub db_put($$$) {
		700	BDB::dbreq_pri 4;
		701	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		702	}
		703
		704	=item cf::cache $id => [$paths...], $processversion => $process
		705
		706	Generic caching function that returns the value of the resource $id,
		707	caching and regenerating as required.
		708
		709	This function can block.
		710
		711	=cut
		712
		713	sub cache {
		714	my ($id, $src, $processversion, $process) = @_;
		715
		716	my $meta =
		717	join "\x00",
		718	$processversion,
		719	map {
		720	aio_stat $_
		721	and Carp::croak "$_: $!";
		722
		723	($_, (stat _)[7,9])
		724	} @$src;
		725
		726	my $dbmeta = db_get cache => "$id/meta";
		727	if ($dbmeta ne $meta) {
		728	# changed, we may need to process
		729
		730	my @data;
		731	my $md5;
		732
		733	for (0 .. $#$src) {
		734	0 <= aio_load $src->[$_], $data[$_]
		735	or Carp::croak "$src->[$_]: $!";
		736	}
		737
		738	# if processing is expensive, check
		739	# checksum first
		740	if (1) {
		741	$md5 =
		742	join "\x00",
		743	$processversion,
		744	map {
		745	cf::cede_to_tick;
		746	($src->[$_], Digest::MD5::md5_hex $data[$_])
		747	} 0.. $#$src;
		748
		749
		750	my $dbmd5 = db_get cache => "$id/md5";
		751	if ($dbmd5 eq $md5) {
		752	db_put cache => "$id/meta", $meta;
		753
		754	return db_get cache => "$id/data";
		755	}
		756	}
		757
		758	my $t1 = Time::HiRes::time;
		759	my $data = $process->(\@data);
		760	my $t2 = Time::HiRes::time;
		761
		762	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		763
		764	db_put cache => "$id/data", $data;
		765	db_put cache => "$id/md5" , $md5;
		766	db_put cache => "$id/meta", $meta;
		767
		768	return $data;
		769	}
		770
		771	db_get cache => "$id/data"
		772	}
		773
		774	=item cf::datalog type => key => value, ...
		775
		776	Log a datalog packet of the given type with the given key-value pairs.
		777
		778	=cut
		779
		780	sub datalog($@) {
		781	my ($type, %kv) = @_;
		782	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	783	}
278		784
279	=back	785	=back
280		786
281	=cut	787	=cut
282		788
283	#############################################################################	789	#############################################################################
284		790
285	package cf::path;
286
287	sub new {
288	my ($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	791	=head2 ATTACHABLE OBJECTS
396		792
397	Many objects in crossfire are so-called attachable objects. That means you can	793	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")	794	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	795	to it. All such attachable objects support the following methods.
400		796
401	In the following description, CLASS can be any of C<global>, C<object>	797	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	798	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	799	Deliantra).
404		800
405	=over 4	801	=over 4
406		802
407	=item $attachable->attach ($attachment, key => $value...)	803	=item $attachable->attach ($attachment, key => $value...)
408		804
…		…
452	=item cf::CLASS::attachment $name, ...	848	=item cf::CLASS::attachment $name, ...
453		849
454	Register an attachment by C<$name> through which attachable objects of the	850	Register an attachment by C<$name> through which attachable objects of the
455	given CLASS can refer to this attachment.	851	given CLASS can refer to this attachment.
456		852
457	Some classes such as crossfire maps and objects can specify attachments	853	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.	854	that are attached at load/instantiate time, thus the need for a name.
459		855
460	These calls expect any number of the following handler/hook descriptions:	856	These calls expect any number of the following handler/hook descriptions:
461		857
462	=over 4	858	=over 4
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	918	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	919	our @CB_MAP = ();
524		920
525	my %attachment;	921	my %attachment;
526		922
		923	sub cf::attachable::thawer_merge {
		924	# simply override everything except _meta
		925	local $_[0]{_meta};
		926	%{$_[0]} = %{$_[1]};
		927	}
		928
527	sub _attach_cb($$$$) {	929	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	930	my ($registry, $event, $prio, $cb) = @_;
529		931
530	use sort 'stable';	932	use sort 'stable';
531		933
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	967	$registry = $CB_TYPE[$object_type] ||= [];
566		968
567	} elsif ($type eq "subtype") {	969	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	970	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	971	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	972	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		973
572	} elsif ($type eq "package") {	974	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	975	my $pkg = shift @arg;
574		976
575	while (my ($name, $id) = each %cb_id) {	977	while (my ($name, $id) = each %cb_id) {
…		…
580		982
581	} elsif (exists $cb_id{$type}) {	983	} elsif (exists $cb_id{$type}) {
582	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	984	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
583		985
584	} elsif (ref $type) {	986	} elsif (ref $type) {
585	warn "attaching objects not supported, ignoring.\n";	987	error "attaching objects not supported, ignoring.\n";
586		988
587	} else {	989	} else {
588	shift @arg;	990	shift @arg;
589	warn "attach argument '$type' not supported, ignoring.\n";	991	error "attach argument '$type' not supported, ignoring.\n";
590	}	992	}
591	}	993	}
592	}	994	}
593		995
594	sub _object_attach {	996	sub _object_attach {
…		…
604	_attach $registry, $klass, @attach;	1006	_attach $registry, $klass, @attach;
605	}	1007	}
606		1008
607	$obj->{$name} = \%arg;	1009	$obj->{$name} = \%arg;
608	} else {	1010	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	1011	info "object uses attachment '$name' which is not available, postponing.\n";
610	}	1012	}
611		1013
612	$obj->{_attachment}{$name} = undef;	1014	$obj->{_attachment}{$name} = undef;
613	}	1015	}
614		1016
…		…
616	if (ref $_[0]) {	1018	if (ref $_[0]) {
617	_object_attach @_;	1019	_object_attach @_;
618	} else {	1020	} else {
619	_attach shift->_attach_registry, @_;	1021	_attach shift->_attach_registry, @_;
620	}	1022	}
		1023	_recalc_want;
621	};	1024	};
622		1025
623	# all those should be optimised	1026	# all those should be optimised
624	sub cf::attachable::detach {	1027	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	1028	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	1031	delete $obj->{_attachment}{$name};
629	reattach ($obj);	1032	reattach ($obj);
630	} else {	1033	} else {
631	Carp::croak "cannot, currently, detach class attachments";	1034	Carp::croak "cannot, currently, detach class attachments";
632	}	1035	}
		1036	_recalc_want;
633	};	1037	};
634		1038
635	sub cf::attachable::attached {	1039	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	1040	my ($obj, $name) = @_;
637		1041
…		…
652	";	1056	";
653	die if $@;	1057	die if $@;
654	}	1058	}
655		1059
656	our $override;	1060	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1061	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		1062
659	sub override {	1063	sub override {
660	$override = 1;	1064	$override = 1;
661	@invoke_results = ();	1065	@INVOKE_RESULTS = (@_);
662	}	1066	}
663		1067
664	sub do_invoke {	1068	sub do_invoke {
665	my $event = shift;	1069	my $event = shift;
666	my $callbacks = shift;	1070	my $callbacks = shift;
667		1071
668	@invoke_results = ();	1072	@INVOKE_RESULTS = ();
669		1073
670	local $override;	1074	local $override;
671		1075
672	for (@$callbacks) {	1076	for (@$callbacks) {
673	eval { &{$_->[1]} };	1077	eval { &{$_->[1]} };
674		1078
675	if ($@) {	1079	if ($@) {
676	warn "$@";
677	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1080	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
678	override;	1081	override;
679	}	1082	}
680		1083
681	return 1 if $override;	1084	return 1 if $override;
682	}	1085	}
683		1086
684	0	1087	0
685	}	1088	}
686		1089
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1090	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1091
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1092	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1093
691	Generate an object-specific event with the given arguments.	1094	Generate an object-specific event with the given arguments.
692		1095
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1096	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	1097	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	1098	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1099
697	=back	1100	=back
698		1101
699	=cut	1102	=cut
700		1103
701	#############################################################################	1104	#############################################################################
702	# object support	1105	# object support
		1106
		1107	sub _object_equal($$);
		1108	sub _object_equal($$) {
		1109	my ($a, $b) = @_;
		1110
		1111	return 0 unless (ref $a) eq (ref $b);
		1112
		1113	if ("HASH" eq ref $a) {
		1114	my @ka = keys %$a;
		1115	my @kb = keys %$b;
		1116
		1117	return 0 if @ka != @kb;
		1118
		1119	for (0 .. $#ka) {
		1120	return 0 unless $ka[$_] eq $kb[$_];
		1121	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1122	}
		1123
		1124	} elsif ("ARRAY" eq ref $a) {
		1125
		1126	return 0 if @$a != @$b;
		1127
		1128	for (0 .. $#$a) {
		1129	return 0 unless _object_equal $a->[$_], $b->[$_];
		1130	}
		1131
		1132	} elsif ($a ne $b) {
		1133	return 0;
		1134	}
		1135
		1136	1
		1137	}
		1138
		1139	our $SLOW_MERGES;#d#
		1140	sub _can_merge {
		1141	my ($ob1, $ob2) = @_;
		1142
		1143	++$SLOW_MERGES;#d#
		1144
		1145	# we do the slow way here
		1146	return _object_equal $ob1, $ob2
		1147	}
703		1148
704	sub reattach {	1149	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1150	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1151	my ($obj) = @_;
		1152
		1153	# no longer needed after getting rid of delete_package?
		1154	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		1155
708	my $registry = $obj->registry;	1156	my $registry = $obj->registry;
709		1157
710	@$registry = ();	1158	@$registry = ();
711		1159
…		…
716	for (@$attach) {	1164	for (@$attach) {
717	my ($klass, @attach) = @$_;	1165	my ($klass, @attach) = @$_;
718	_attach $registry, $klass, @attach;	1166	_attach $registry, $klass, @attach;
719	}	1167	}
720	} else {	1168	} else {
721	warn "object uses attachment '$name' that is not available, postponing.\n";	1169	info "object uses attachment '$name' that is not available, postponing.\n";
722	}	1170	}
723	}	1171	}
724	}	1172	}
725		1173
726	cf::attachable->attach (	1174	cf::attachable->attach (
727	prio => -1000000,	1175	prio => -1000000,
728	on_instantiate => sub {	1176	on_instantiate => sub {
729	my ($obj, $data) = @_;	1177	my ($obj, $data) = @_;
730		1178
731	$data = from_json $data;	1179	$data = decode_json $data;
732		1180
733	for (@$data) {	1181	for (@$data) {
734	my ($name, $args) = @$_;	1182	my ($name, $args) = @$_;
735		1183
736	$obj->attach ($name, %{$args || {} });	1184	$obj->attach ($name, %{$args || {} });
…		…
752	sub object_freezer_save {	1200	sub object_freezer_save {
753	my ($filename, $rdata, $objs) = @_;	1201	my ($filename, $rdata, $objs) = @_;
754		1202
755	sync_job {	1203	sync_job {
756	if (length $$rdata) {	1204	if (length $$rdata) {
		1205	utf8::decode (my $decname = $filename);
757	warn sprintf "saving %s (%d,%d)\n",	1206	trace sprintf "saving %s (%d,%d)\n",
758	$filename, length $$rdata, scalar @$objs;	1207	$decname, length $$rdata, scalar @$objs
		1208	if $VERBOSE_IO;
759		1209
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1210	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	1211	aio_chmod $fh, SAVE_MODE;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1212	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1213	if ($cf::USE_FSYNC) {
		1214	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
763	aio_fsync $fh;	1215	aio_fsync $fh;
		1216	}
764	close $fh;	1217	aio_close $fh;
765		1218
766	if (@$objs) {	1219	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1220	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	1221	aio_chmod $fh, SAVE_MODE;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	1222	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	1223	aio_write $fh, 0, (length $data), $data, 0;
		1224	if ($cf::USE_FSYNC) {
		1225	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;	1226	aio_fsync $fh;
		1227	}
772	close $fh;	1228	aio_close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	1229	aio_rename "$filename.pst~", "$filename.pst";
774	}	1230	}
775	} else {	1231	} else {
776	aio_unlink "$filename.pst";	1232	aio_unlink "$filename.pst";
777	}	1233	}
778		1234
779	aio_rename "$filename~", $filename;	1235	aio_rename "$filename~", $filename;
		1236
		1237	$filename =~ s%/[^/]+$%%;
		1238	aio_pathsync $filename if $cf::USE_FSYNC;
780	} else {	1239	} else {
781	warn "FATAL: $filename~: $!\n";	1240	error "unable to save objects: $filename~: $!\n";
782	}	1241	}
783	} else {	1242	} else {
784	aio_unlink $filename;	1243	aio_unlink $filename;
785	aio_unlink "$filename.pst";	1244	aio_unlink "$filename.pst";
786	}	1245	}
787	}	1246	};
788	}	1247	}
789		1248
790	sub object_freezer_as_string {	1249	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1250	my ($rdata, $objs) = @_;
792		1251
…		…
804	or return;	1263	or return;
805		1264
806	unless (aio_stat "$filename.pst") {	1265	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	1266	(aio_load "$filename.pst", $av) >= 0
808	or return;	1267	or return;
		1268
809	$av = eval { (Storable::thaw $av)->{objs} };	1269	my $st = eval { Coro::Storable::thaw $av };
		1270	$av = $st->{objs};
810	}	1271	}
811		1272
		1273	utf8::decode (my $decname = $filename);
		1274	trace sprintf "loading %s (%d,%d)\n",
		1275	$decname, length $data, scalar @{$av || []}
		1276	if $VERBOSE_IO;
		1277
812	return ($data, $av);	1278	($data, $av)
813	}	1279	}
		1280
		1281	=head2 COMMAND CALLBACKS
		1282
		1283	=over 4
		1284
		1285	=cut
814		1286
815	#############################################################################	1287	#############################################################################
816	# command handling &c	1288	# command handling &c
817		1289
818	=item cf::register_command $name => \&callback($ob,$args);	1290	=item cf::register_command $name => \&callback($ob,$args);
…		…
831	push @{ $COMMAND{$name} }, [$caller, $cb];	1303	push @{ $COMMAND{$name} }, [$caller, $cb];
832	}	1304	}
833		1305
834	=item cf::register_extcmd $name => \&callback($pl,$packet);	1306	=item cf::register_extcmd $name => \&callback($pl,$packet);
835		1307
836	Register a callbackf ro execution when the client sends an extcmd packet.	1308	Register a callback for execution when the client sends an (synchronous)
		1309	extcmd packet. Ext commands will be processed in the order they are
		1310	received by the server, like other user commands. The first argument is
		1311	the logged-in player. Ext commands can only be processed after a player
		1312	has logged in successfully.
837		1313
838	If the callback returns something, it is sent back as if reply was being	1314	If the callback returns something, it is sent back as if reply was being
839	called.	1315	called.
840		1316
		1317	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1318
		1319	Register a callback for execution when the client sends an (asynchronous)
		1320	exticmd packet. Exti commands are processed by the server as soon as they
		1321	are received, i.e. out of order w.r.t. other commands. The first argument
		1322	is a client socket. Exti commands can be received anytime, even before
		1323	log-in.
		1324
		1325	If the callback returns something, it is sent back as if reply was being
		1326	called.
		1327
841	=cut	1328	=cut
842		1329
843	sub register_extcmd {	1330	sub register_extcmd {
844	my ($name, $cb) = @_;	1331	my ($name, $cb) = @_;
845		1332
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	1333	$EXTCMD{$name} = $cb;
850	}	1334	}
		1335
		1336	sub register_exticmd {
		1337	my ($name, $cb) = @_;
		1338
		1339	$EXTICMD{$name} = $cb;
		1340	}
		1341
		1342	use File::Glob ();
851		1343
852	cf::player->attach (	1344	cf::player->attach (
853	on_command => sub {	1345	on_unknown_command => sub {
854	my ($pl, $name, $params) = @_;	1346	my ($pl, $name, $params) = @_;
855		1347
856	my $cb = $COMMAND{$name}	1348	my $cb = $COMMAND{$name}
857	or return;	1349	or return;
858		1350
…		…
863	cf::override;	1355	cf::override;
864	},	1356	},
865	on_extcmd => sub {	1357	on_extcmd => sub {
866	my ($pl, $buf) = @_;	1358	my ($pl, $buf) = @_;
867		1359
868	my $msg = eval { from_json $buf };	1360	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
869		1361
870	if (ref $msg) {	1362	if (ref $msg) {
		1363	my ($type, $reply, @payload) =
		1364	"ARRAY" eq ref $msg
		1365	? @$msg
		1366	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1367
		1368	my @reply;
		1369
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1370	if (my $cb = $EXTCMD{$type}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	1371	@reply = $cb->($pl, @payload);
873	$pl->ext_reply ($msg->{msgid}, %reply);
874	}
875	}	1372	}
		1373
		1374	$pl->ext_reply ($reply, @reply)
		1375	if $reply;
		1376
876	} else {	1377	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1378	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
878	}	1379	}
879		1380
880	cf::override;	1381	cf::override;
881	},	1382	},
882	);	1383	);
883		1384
884	sub register {	1385	# "readahead" all extensions
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	1386	sub cache_extensions {
891	my ($path) = @_;	1387	my $grp = IO::AIO::aio_group;
892		1388
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1389	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
894	my $base = $1;	1390	for (grep /\.ext$/, @{$_[0]}) {
895	my $pkg = $1;	1391	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	}	1392	}
943	}	1393	};
944		1394
945	# remove extcmds	1395	$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	}	1396	}
959		1397
960	sub load_extensions {	1398	sub load_extensions {
		1399	info "loading extensions...";
		1400
		1401	cf::sync_job {
		1402	my %todo;
		1403
961	for my $ext (<$LIBDIR/*.ext>) {	1404	for my $path (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	1405	next unless -r $path;
963	eval {	1406
964	load_extension $ext;	1407	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1408	my $base = $1;
		1409	my $pkg = $1;
		1410	$pkg =~ s/[^[:word:]]/_/g;
		1411	$pkg = "ext::$pkg";
		1412
		1413	open my $fh, "<:utf8", $path
		1414	or die "$path: $!";
		1415
		1416	my $source = do { local $/; <$fh> };
		1417
		1418	my %ext = (
		1419	path => $path,
		1420	base => $base,
		1421	pkg => $pkg,
		1422	);
		1423
		1424	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1425	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1426
		1427	$ext{source} =
		1428	"package $pkg; use common::sense;\n"
		1429	. "#line 1 \"$path\"\n{\n"
		1430	. $source
		1431	. "\n};\n1";
		1432
		1433	$todo{$base} = \%ext;
		1434	}
		1435
		1436	my $pass = 0;
		1437	my %done;
		1438	while (%todo) {
		1439	my $progress;
		1440
		1441	++$pass;
		1442
		1443	ext:
		1444	while (my ($k, $v) = each %todo) {
		1445	for (split /,\s*/, $v->{meta}{depends}) {
		1446	next ext
		1447	unless exists $done{$_};
		1448	}
		1449
		1450	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1451
		1452	my $active = eval $v->{source};
		1453
		1454	if (length $@) {
		1455	error "$v->{path}: $@\n";
		1456
		1457	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1458	if exists $v->{meta}{mandatory};
		1459
		1460	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1461	delete $todo{$k};
		1462	} else {
		1463	$done{$k} = delete $todo{$k};
		1464	push @EXTS, $v->{pkg};
		1465	$progress = 1;
		1466
		1467	info "$v->{base}: extension inactive.\n"
		1468	unless $active;
		1469	}
965	1	1470	}
966	} or warn "$ext not loaded: $@";	1471
		1472	unless ($progress) {
		1473	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1474
		1475	while (my ($k, $v) = each %todo) {
		1476	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1477	if exists $v->{meta}{mandatory};
		1478	}
		1479	}
		1480	}
967	}	1481	};
968	}	1482	}
969		1483
970	#############################################################################	1484	#############################################################################
971	# load/save/clean perl data associated with a map
972		1485
973	*cf::mapsupport::on_clean = sub {	1486	=back
		1487
		1488	=head2 CORE EXTENSIONS
		1489
		1490	Functions and methods that extend core deliantra objects.
		1491
		1492	=cut
		1493
		1494	package cf::player;
		1495
		1496	use Coro::AIO;
		1497
		1498	=head3 cf::player
		1499
		1500	=over 4
		1501
		1502	=item cf::player::num_playing
		1503
		1504	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1505
		1506	=cut
		1507
		1508	sub num_playing {
		1509	scalar grep
		1510	$_->ob->map
		1511	&& !$_->hidden
		1512	&& !$_->ob->flag (cf::FLAG_WIZ),
		1513	cf::player::list
		1514	}
		1515
		1516	=item cf::player::find $login
		1517
		1518	Returns the given player object, loading it if necessary (might block).
		1519
		1520	=cut
		1521
		1522	sub playerdir($) {
		1523	"$PLAYERDIR/"
		1524	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1525	}
		1526
		1527	sub path($) {
		1528	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1529
		1530	(playerdir $login) . "/playerdata"
		1531	}
		1532
		1533	sub find_active($) {
		1534	$cf::PLAYER{$_[0]}
		1535	and $cf::PLAYER{$_[0]}->active
		1536	and $cf::PLAYER{$_[0]}
		1537	}
		1538
		1539	sub exists($) {
974	my ($map) = @_;	1540	my ($login) = @_;
975		1541
976	my $path = $map->tmpname;	1542	$cf::PLAYER{$login}
977	defined $path or return;	1543	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	}	1544	}
990		1545
991	# TODO: compatibility cruft, remove when no longer needed	1546	sub find($) {
		1547	return $cf::PLAYER{$_[0]} || do {
		1548	my $login = $_[0];
		1549
		1550	my $guard = cf::lock_acquire "user_find:$login";
		1551
		1552	$cf::PLAYER{$_[0]} || do {
		1553	# rename old playerfiles to new ones
		1554	#TODO: remove when no longer required
		1555	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1556	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1557	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1558	aio_unlink +(playerdir $login) . "/$login.pl";
		1559
		1560	my $f = new_from_file cf::object::thawer path $login
		1561	or return;
		1562
		1563	my $pl = cf::player::load_pl $f
		1564	or return;
		1565
		1566	local $cf::PLAYER_LOADING{$login} = $pl;
		1567	$f->resolve_delayed_derefs;
		1568	$cf::PLAYER{$login} = $pl
		1569	}
		1570	}
		1571	}
		1572
992	cf::player->attach (	1573	cf::player->attach (
993	on_load => sub {	1574	on_load => sub {
994	my ($pl, $path) = @_;	1575	my ($pl, $path) = @_;
995		1576
996	for my $o (all_objects $pl->ob) {	1577	# restore slots saved in save, below
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1578	my $slots = delete $pl->{_slots};
998	$o->set_ob_key_value ("_perl_data");
999		1579
1000	%$o = %{ Storable::thaw pack "H*", $value };	1580	$pl->ob->current_weapon ($slots->[0]);
1001	}	1581	$pl->combat_ob ($slots->[1]);
1002	}	1582	$pl->ranged_ob ($slots->[2]);
1003	},	1583	},
1004	);	1584	);
1005		1585
1006	#############################################################################	1586	sub save($) {
		1587	my ($pl) = @_;
1007		1588
1008	=head2 CORE EXTENSIONS	1589	return if $pl->{deny_save};
1009		1590
1010	Functions and methods that extend core crossfire objects.	1591	my $path = path $pl;
		1592	my $guard = cf::lock_acquire "user_save:$path";
1011		1593
1012	=head3 cf::player	1594	return if $pl->{deny_save};
		1595
		1596	aio_mkdir playerdir $pl, 0770;
		1597	$pl->{last_save} = $cf::RUNTIME;
		1598
		1599	cf::get_slot 0.01;
		1600
		1601	# save slots, to be restored later
		1602	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1603
		1604	$pl->save_pl ($path);
		1605	cf::cede_to_tick;
		1606	}
		1607
		1608	sub new($) {
		1609	my ($login) = @_;
		1610
		1611	my $self = create;
		1612
		1613	$self->ob->name ($login);
		1614	$self->{deny_save} = 1;
		1615
		1616	$cf::PLAYER{$login} = $self;
		1617
		1618	$self
		1619	}
		1620
		1621	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1622
		1623	=cut
		1624
		1625	sub send_msg {
		1626	my $ns = shift->ns
		1627	or return;
		1628	$ns->send_msg (@_);
		1629	}
		1630
		1631	=item $pl->quit_character
		1632
		1633	Nukes the player without looking back. If logged in, the connection will
		1634	be destroyed. May block for a long time.
		1635
		1636	=cut
		1637
		1638	sub quit_character {
		1639	my ($pl) = @_;
		1640
		1641	my $name = $pl->ob->name;
		1642
		1643	$pl->{deny_save} = 1;
		1644	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1645
		1646	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1647	$pl->deactivate;
		1648	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1649	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1650	$pl->ns->destroy if $pl->ns;
		1651
		1652	my $path = playerdir $pl;
		1653	my $temp = "$path~$cf::RUNTIME~deleting~";
		1654	aio_rename $path, $temp;
		1655	delete $cf::PLAYER{$pl->ob->name};
		1656	$pl->destroy;
		1657
		1658	my $prefix = qr<^~\Q$name\E/>;
		1659
		1660	# nuke player maps
		1661	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1662
		1663	IO::AIO::aio_rmtree $temp;
		1664	}
		1665
		1666	=item $pl->kick
		1667
		1668	Kicks a player out of the game. This destroys the connection.
		1669
		1670	=cut
		1671
		1672	sub kick {
		1673	my ($pl, $kicker) = @_;
		1674
		1675	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1676	$pl->killer ("kicked");
		1677	$pl->ns->destroy;
		1678	}
		1679
		1680	=item cf::player::list_logins
		1681
		1682	Returns am arrayref of all valid playernames in the system, can take a
		1683	while and may block, so not sync_job-capable, ever.
		1684
		1685	=cut
		1686
		1687	sub list_logins {
		1688	my $dirs = aio_readdir $PLAYERDIR
		1689	or return [];
		1690
		1691	my @logins;
		1692
		1693	for my $login (@$dirs) {
		1694	my $path = path $login;
		1695
		1696	# a .pst is a dead give-away for a valid player
		1697	# if no pst file found, open and chekc for blocked users
		1698	if (aio_stat "$path.pst") {
		1699	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1700	aio_read $fh, 0, 512, my $buf, 0 or next;
		1701	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1702	}
		1703
		1704	utf8::decode $login;
		1705	push @logins, $login;
		1706	}
		1707
		1708	\@logins
		1709	}
		1710
		1711	=item $player->maps
		1712
		1713	=item cf::player::maps $login
		1714
		1715	Returns an arrayref of map paths that are private for this
		1716	player. May block.
		1717
		1718	=cut
		1719
		1720	sub maps($) {
		1721	my ($pl) = @_;
		1722
		1723	$pl = ref $pl ? $pl->ob->name : $pl;
		1724
		1725	my $files = aio_readdir playerdir $pl
		1726	or return;
		1727
		1728	my @paths;
		1729
		1730	for (@$files) {
		1731	utf8::decode $_;
		1732	next if /\.(?:pl|pst)$/;
		1733	next unless /^$PATH_SEP/o;
		1734
		1735	push @paths, cf::map::normalise "~$pl/$_";
		1736	}
		1737
		1738	\@paths
		1739	}
		1740
		1741	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1742
		1743	Expand deliantra pod fragments into protocol xml.
		1744
		1745	=item $player->ext_reply ($msgid, @msg)
		1746
		1747	Sends an ext reply to the player.
		1748
		1749	=cut
		1750
		1751	sub ext_reply($$@) {
		1752	my ($self, $id, @msg) = @_;
		1753
		1754	$self->ns->ext_reply ($id, @msg)
		1755	}
		1756
		1757	=item $player->ext_msg ($type, @msg)
		1758
		1759	Sends an ext event to the client.
		1760
		1761	=cut
		1762
		1763	sub ext_msg($$@) {
		1764	my ($self, $type, @msg) = @_;
		1765
		1766	$self->ns->ext_msg ($type, @msg);
		1767	}
		1768
		1769	=head3 cf::region
1013		1770
1014	=over 4	1771	=over 4
1015		1772
1016	=item cf::player::exists $login
1017
1018	Returns true when the given account exists.
1019
1020	=cut	1773	=cut
1021		1774
1022	sub cf::player::exists($) {	1775	package cf::region;
1023	cf::player::find $_[0]
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1025	}
1026		1776
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1777	=item cf::region::find_by_path $path
1028		1778
1029	Sends an ext reply to the player.	1779	Tries to decuce the likely region for a map knowing only its path.
1030		1780
1031	=cut	1781	=cut
1032		1782
1033	sub cf::player::ext_reply($$$%) {	1783	sub find_by_path($) {
1034	my ($self, $id, %msg) = @_;	1784	my ($path) = @_;
1035		1785
1036	$msg{msgid} = $id;	1786	$path =~ s/^~[^\/]*//; # skip ~login
1037		1787
1038	$self->send ("ext " . to_json \%msg);	1788	my ($match, $specificity);
		1789
		1790	for my $region (list) {
		1791	if ($region->{match} && $path =~ $region->{match}) {
		1792	($match, $specificity) = ($region, $region->specificity)
		1793	if $region->specificity > $specificity;
		1794	}
		1795	}
		1796
		1797	$match
1039	}	1798	}
1040		1799
1041	=back	1800	=back
1042
1043		1801
1044	=head3 cf::map	1802	=head3 cf::map
1045		1803
1046	=over 4	1804	=over 4
1047		1805
…		…
1050	package cf::map;	1808	package cf::map;
1051		1809
1052	use Fcntl;	1810	use Fcntl;
1053	use Coro::AIO;	1811	use Coro::AIO;
1054		1812
		1813	use overload
		1814	'""' => \&as_string,
		1815	fallback => 1;
		1816
1055	our $MAX_RESET = 7200;	1817	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1818	our $DEFAULT_RESET = 3000;
1057		1819
1058	sub generate_random_map {	1820	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1821	my ($self, $rmp) = @_;
		1822
		1823	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1060		1824
1061	# mit "rum" bekleckern, nicht	1825	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1826	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1827	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1828	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1829	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1830	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1831	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1832	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1833	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1834	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1835	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1836	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1837	(cf::region::find $rmp->{region}), $rmp->{custom}
		1838	)
1075	}	1839	}
1076		1840
1077	# and all this just because we cannot iterate over	1841	=item cf::map->register ($regex, $prio)
1078	# all maps in C++...
1079	sub change_all_map_light {
1080	my ($change) = @_;
1081		1842
1082	$_->change_map_light ($change) for values %cf::MAP;	1843	Register a handler for the map path matching the given regex at the
1083	}	1844	givne priority (higher is better, built-in handlers have priority 0, the
		1845	default).
1084		1846
1085	sub try_load_header($) {	1847	=cut
		1848
		1849	sub register {
		1850	my (undef, $regex, $prio) = @_;
		1851	my $pkg = caller;
		1852
		1853	push @{"$pkg\::ISA"}, __PACKAGE__;
		1854
		1855	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1856	}
		1857
		1858	# also paths starting with '/'
		1859	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1860
		1861	sub thawer_merge {
		1862	my ($self, $merge) = @_;
		1863
		1864	# we have to keep some variables in memory intact
		1865	local $self->{path};
		1866	local $self->{load_path};
		1867
		1868	$self->SUPER::thawer_merge ($merge);
		1869	}
		1870
		1871	sub normalise {
1086	my ($path) = @_;	1872	my ($path, $base) = @_;
		1873
		1874	$path = "$path"; # make sure it's a string
		1875
		1876	$path =~ s/\.map$//;
		1877
		1878	# map plan:
		1879	#
		1880	# /! non-realised random map exit (special hack!)
		1881	# {... are special paths that are not being touched
		1882	# ?xxx/... are special absolute paths
		1883	# ?random/... random maps
		1884	# /... normal maps
		1885	# ~user/... per-player map of a specific user
		1886
		1887	$path =~ s/$PATH_SEP/\//go;
		1888
		1889	# treat it as relative path if it starts with
		1890	# something that looks reasonable
		1891	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1892	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1893
		1894	$base =~ s{[^/]+/?$}{};
		1895	$path = "$base/$path";
		1896	}
		1897
		1898	for ($path) {
		1899	redo if s{//}{/};
		1900	redo if s{/\.?/}{/};
		1901	redo if s{/[^/]+/\.\./}{/};
		1902	}
		1903
		1904	$path
		1905	}
		1906
		1907	sub new_from_path {
		1908	my (undef, $path, $base) = @_;
		1909
		1910	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1911
		1912	$path = normalise $path, $base;
		1913
		1914	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1915	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1916	my $self = bless cf::map::new, $pkg;
		1917	$self->{path} = $path; $self->path ($path);
		1918	$self->init; # pass $1 etc.
		1919	return $self;
		1920	}
		1921	}
		1922
		1923	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1924	()
		1925	}
		1926
		1927	sub init {
		1928	my ($self) = @_;
		1929
		1930	$self
		1931	}
		1932
		1933	sub as_string {
		1934	my ($self) = @_;
		1935
		1936	"$self->{path}"
		1937	}
		1938
		1939	# the displayed name, this is a one way mapping
		1940	sub visible_name {
		1941	&as_string
		1942	}
		1943
		1944	# the original (read-only) location
		1945	sub load_path {
		1946	my ($self) = @_;
		1947
		1948	"$MAPDIR/$self->{path}.map"
		1949	}
		1950
		1951	# the temporary/swap location
		1952	sub save_path {
		1953	my ($self) = @_;
		1954
		1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1956	"$TMPDIR/$path.map"
		1957	}
		1958
		1959	# the unique path, undef == no special unique path
		1960	sub uniq_path {
		1961	my ($self) = @_;
		1962
		1963	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1964	"$UNIQUEDIR/$path"
		1965	}
		1966
		1967	sub decay_objects {
		1968	my ($self) = @_;
		1969
		1970	return if $self->{deny_reset};
		1971
		1972	$self->do_decay_objects;
		1973	}
		1974
		1975	sub unlink_save {
		1976	my ($self) = @_;
		1977
		1978	utf8::encode (my $save = $self->save_path);
		1979	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1980	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1981	}
		1982
		1983	sub load_header_from($) {
		1984	my ($self, $path) = @_;
1087		1985
1088	utf8::encode $path;	1986	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1987	my $f = new_from_file cf::object::thawer $path
1090	or return;	1988	or return;
1091		1989
1092	my $map = cf::map::new	1990	$self->_load_header ($f)
1093	or return;	1991	or return;
1094		1992
1095	$map->load_header ($path)	1993	local $MAP_LOADING{$self->{path}} = $self;
		1994	$f->resolve_delayed_derefs;
		1995
		1996	$self->{load_path} = $path;
		1997
		1998	1
		1999	}
		2000
		2001	sub load_header_orig {
		2002	my ($self) = @_;
		2003
		2004	$self->load_header_from ($self->load_path)
		2005	}
		2006
		2007	sub load_header_temp {
		2008	my ($self) = @_;
		2009
		2010	$self->load_header_from ($self->save_path)
		2011	}
		2012
		2013	sub prepare_temp {
		2014	my ($self) = @_;
		2015
		2016	$self->last_access ((delete $self->{last_access})
		2017	|| $cf::RUNTIME); #d#
		2018	# safety
		2019	$self->{instantiate_time} = $cf::RUNTIME
		2020	if $self->{instantiate_time} > $cf::RUNTIME;
		2021	}
		2022
		2023	sub prepare_orig {
		2024	my ($self) = @_;
		2025
		2026	$self->{load_original} = 1;
		2027	$self->{instantiate_time} = $cf::RUNTIME;
		2028	$self->last_access ($cf::RUNTIME);
		2029	$self->instantiate;
		2030	}
		2031
		2032	sub load_header {
		2033	my ($self) = @_;
		2034
		2035	if ($self->load_header_temp) {
		2036	$self->prepare_temp;
		2037	} else {
		2038	$self->load_header_orig
1096	or return;	2039	or return;
		2040	$self->prepare_orig;
		2041	}
1097		2042
1098	$map->{load_path} = $path;	2043	$self->{deny_reset} = 1
		2044	if $self->no_reset;
1099		2045
1100	$map	2046	$self->default_region (cf::region::find_by_path $self->{path})
1101	}	2047	unless $self->default_region;
1102		2048
		2049	1
		2050	}
		2051
		2052	sub find;
1103	sub find_map {	2053	sub find {
1104	my ($path, $origin) = @_;	2054	my ($path, $origin) = @_;
1105		2055
1106	#warn "find_map<$path,$origin>\n";#d#	2056	cf::cede_to_tick;
1107		2057
1108	$path = new cf::path $path, $origin && $origin->path;	2058	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		2059
		2060	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2061	my $guard2 = cf::lock_acquire "map_find:$path";
		2062
1111	$cf::MAP{$key} || do {	2063	$cf::MAP{$path} || do {
1112	# do it the slow way	2064	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;	2065	or return;
1127		2066
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);	2067	$map->{last_save} = $cf::RUNTIME;
1139		2068
1140	if ($map->should_reset) {	2069	$map->load_header
		2070	or return;
		2071
		2072	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2073	# doing this can freeze the server in a sync job, obviously
		2074	#$cf::WAIT_FOR_TICK->wait;
		2075	undef $guard2;
		2076	undef $guard1;
1141	$map->reset;	2077	$map->reset;
1142	$map = find_map $path;	2078	return find $path;
1143	}	2079	}
1144		2080
1145	$cf::MAP{$key} = $map	2081	$cf::MAP{$path} = $map
1146	}	2082	}
1147	}	2083	}
		2084
		2085	sub pre_load { }
		2086	#sub post_load { } # XS
1148		2087
1149	sub load {	2088	sub load {
1150	my ($self) = @_;	2089	my ($self) = @_;
1151		2090
1152	return if $self->in_memory != cf::MAP_SWAPPED;	2091	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		2092
1156	my $path = $self->{path};	2093	my $path = $self->{path};
1157		2094
		2095	{
		2096	my $guard = cf::lock_acquire "map_data:$path";
		2097
		2098	return unless $self->valid;
		2099	return unless $self->in_memory == cf::MAP_SWAPPED;
		2100
		2101	$self->in_memory (cf::MAP_LOADING);
		2102
1158	$self->alloc;	2103	$self->alloc;
1159	$self->load_objects ($self->{load_path}, 1)	2104
		2105	$self->pre_load;
		2106	cf::cede_to_tick;
		2107
		2108	my $f = new_from_file cf::object::thawer $self->{load_path};
		2109	$f->skip_block;
		2110	$self->_load_objects ($f)
1160	or return;	2111	or return;
1161		2112
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2113	$self->post_load_original
1163	if delete $self->{load_original};	2114	if delete $self->{load_original};
1164		2115
1165	if (my $uniq = $path->uniq_path) {	2116	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	2117	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	2118	unless (aio_stat $uniq) {
		2119	if (my $f = new_from_file cf::object::thawer $uniq) {
1168	$self->clear_unique_items;	2120	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	2121	$self->_load_objects ($f);
		2122	$f->resolve_delayed_derefs;
		2123	}
1170	}	2124	}
1171	}	2125	}
1172		2126
		2127	$f->resolve_delayed_derefs;
		2128
		2129	cf::cede_to_tick;
1173	# now do the right thing for maps	2130	# now do the right thing for maps
1174	$self->link_multipart_objects;	2131	$self->link_multipart_objects;
1175
1176	if ($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)	2132	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	2133	unless $self->difficulty;
		2134	cf::cede_to_tick;
		2135
		2136	unless ($self->{deny_activate}) {
		2137	$self->decay_objects;
		2138	$self->fix_auto_apply;
		2139	$self->update_buttons;
		2140	cf::cede_to_tick;
1186	$self->activate;	2141	$self->activate;
1187	}	2142	}
1188		2143
		2144	$self->{last_save} = $cf::RUNTIME;
		2145	$self->last_access ($cf::RUNTIME);
		2146
1189	$self->in_memory (cf::MAP_IN_MEMORY);	2147	$self->in_memory (cf::MAP_ACTIVE);
1190	}	2148	}
1191		2149
1192	sub load_map_sync {	2150	$self->post_load;
		2151	}
		2152
		2153	# customize the map for a given player, i.e.
		2154	# return the _real_ map. used by e.g. per-player
		2155	# maps to change the path to ~playername/mappath
		2156	sub customise_for {
		2157	my ($self, $ob) = @_;
		2158
		2159	return find "~" . $ob->name . "/" . $self->{path}
		2160	if $self->per_player;
		2161
		2162	# return find "?party/" . $ob->name . "/" . $self->{path}
		2163	# if $self->per_party;
		2164
		2165	$self
		2166	}
		2167
		2168	# find and load all maps in the 3x3 area around a map
		2169	sub load_neighbours {
		2170	my ($map) = @_;
		2171
		2172	my @neigh; # diagonal neighbours
		2173
		2174	for (0 .. 3) {
		2175	my $neigh = $map->tile_path ($_)
		2176	or next;
		2177	$neigh = find $neigh, $map
		2178	or next;
		2179	$neigh->load;
		2180
		2181	# now find the diagonal neighbours
		2182	push @neigh,
		2183	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2184	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2185	}
		2186
		2187	for (grep defined $_->[0], @neigh) {
		2188	my ($path, $origin) = @$_;
		2189	my $neigh = find $path, $origin
		2190	or next;
		2191	$neigh->load;
		2192	}
		2193	}
		2194
		2195	sub find_sync {
1193	my ($path, $origin) = @_;	2196	my ($path, $origin) = @_;
1194		2197
1195	#warn "load_map_sync<$path, $origin>\n";#d#	2198	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2199	if $Coro::current == $Coro::main;
1196		2200
1197	cf::sync_job {	2201	find $path, $origin
1198	my $map = cf::map::find_map $path, $origin	2202	}
1199	or return;	2203
		2204	sub do_load_sync {
		2205	my ($map) = @_;
		2206
		2207	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2208	if $Coro::current == $Coro::main;
		2209
1200	$map->load;	2210	$map->load;
1201	$map	2211	}
		2212
		2213	our %MAP_PREFETCH;
		2214	our $MAP_PREFETCHER = undef;
		2215
		2216	sub find_async {
		2217	my ($path, $origin, $load) = @_;
		2218
		2219	$path = normalise $path, $origin && $origin->{path};
		2220
		2221	if (my $map = $cf::MAP{$path}) {
		2222	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2223	}
		2224
		2225	$MAP_PREFETCH{$path} |= $load;
		2226
		2227	$MAP_PREFETCHER ||= cf::async {
		2228	$Coro::current->{desc} = "map prefetcher";
		2229
		2230	while (%MAP_PREFETCH) {
		2231	while (my ($k, $v) = each %MAP_PREFETCH) {
		2232	if (my $map = find $k) {
		2233	$map->load if $v;
		2234	}
		2235
		2236	delete $MAP_PREFETCH{$k};
		2237	}
		2238	}
		2239	undef $MAP_PREFETCHER;
		2240	};
		2241	$MAP_PREFETCHER->prio (6);
		2242
		2243	()
		2244	}
		2245
		2246	# common code, used by both ->save and ->swapout
		2247	sub _save {
		2248	my ($self) = @_;
		2249
		2250	$self->{last_save} = $cf::RUNTIME;
		2251
		2252	return unless $self->dirty;
		2253
		2254	my $save = $self->save_path; utf8::encode $save;
		2255	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2256
		2257	$self->{load_path} = $save;
		2258
		2259	return if $self->{deny_save};
		2260
		2261	local $self->{last_access} = $self->last_access;#d#
		2262
		2263	cf::async {
		2264	$Coro::current->{desc} = "map player save";
		2265	$_->contr->save for $self->players;
		2266	};
		2267
		2268	cf::get_slot 0.02;
		2269
		2270	if ($uniq) {
		2271	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2272	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2273	} else {
		2274	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1202	}	2275	}
1203	}	2276	}
1204		2277
1205	sub save {	2278	sub save {
1206	my ($self) = @_;	2279	my ($self) = @_;
1207		2280
1208	my $save = $self->{path}->save_path; utf8::encode $save;	2281	my $lock = cf::lock_acquire "map_data:$self->{path}";
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		2282
1211	$self->{last_save} = $cf::RUNTIME;	2283	$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	}	2284	}
1226		2285
1227	sub swap_out {	2286	sub swap_out {
1228	my ($self) = @_;	2287	my ($self) = @_;
1229		2288
		2289	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2290
		2291	return if $self->in_memory != cf::MAP_ACTIVE;
		2292	return if $self->{deny_save};
1230	return if $self->players;	2293	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};
1233		2294
		2295	# first deactivate the map and "unlink" it from the core
		2296	$self->deactivate;
		2297	$_->clear_links_to ($self) for values %cf::MAP;
		2298	$self->in_memory (cf::MAP_SWAPPED);
		2299
		2300	# then atomically save
1234	$self->save;	2301	$self->_save;
		2302
		2303	# then free the map
1235	$self->clear;	2304	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);
1237	}	2305	}
1238		2306
1239	sub reset_at {	2307	sub reset_at {
1240	my ($self) = @_;	2308	my ($self) = @_;
1241		2309
1242	# TODO: safety, remove and allow resettable per-player maps	2310	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};
1244	return 1e100 if $self->{deny_reset};	2311	return 1e99 if $self->{deny_reset};
1245		2312
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2313	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	2314	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		2315
1250	$time + $to	2316	$time + $to
1251	}	2317	}
1252		2318
1253	sub should_reset {	2319	sub should_reset {
1254	my ($self) = @_;	2320	my ($self) = @_;
1255		2321
1256	$self->reset_at <= $cf::RUNTIME	2322	$self->reset_at <= $cf::RUNTIME
1257	}	2323	}
1258		2324
1259	sub unlink_save {
1260	my ($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	$self->save;
1278	}
1279
1280	sub reset {	2325	sub reset {
1281	my ($self) = @_;	2326	my ($self) = @_;
1282		2327
		2328	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2329
1283	return if $self->players;	2330	return if $self->players;
1284	return if $self->{path}{user_rel};#d#
1285		2331
1286	warn "resetting map ", $self->path;#d#	2332	cf::trace "resetting map ", $self->path, "\n";
		2333
		2334	$self->in_memory (cf::MAP_SWAPPED);
		2335
		2336	# need to save uniques path
		2337	unless ($self->{deny_save}) {
		2338	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2339
		2340	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2341	if $uniq;
		2342	}
1287		2343
1288	delete $cf::MAP{$self->path};	2344	delete $cf::MAP{$self->path};
1289		2345
		2346	$self->deactivate;
1290	$_->clear_links_to ($self) for values %cf::MAP;	2347	$_->clear_links_to ($self) for values %cf::MAP;
		2348	$self->clear;
1291		2349
1292	$self->unlink_save;	2350	$self->unlink_save;
1293	$self->destroy;	2351	$self->destroy;
1294	}	2352	}
1295		2353
1296	sub customise_for {	2354	my $nuke_counter = "aaaa";
1297	my ($map, $ob) = @_;
1298		2355
1299	if ($map->per_player) {	2356	sub nuke {
1300	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2357	my ($self) = @_;
		2358
1301	}	2359	{
		2360	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2361
1303	$map	2362	delete $cf::MAP{$self->path};
1304	}
1305		2363
1306	sub emergency_save {	2364	$self->unlink_save;
1307	local $cf::FREEZE = 1;
1308		2365
1309	warn "enter emergency map save\n";	2366	bless $self, "cf::map::wrap";
		2367	delete $self->{deny_reset};
		2368	$self->{deny_save} = 1;
		2369	$self->reset_timeout (1);
		2370	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1310		2371
1311	cf::sync_job {	2372	$cf::MAP{$self->path} = $self;
1312	warn "begin emergency map save\n";
1313	$_->save for values %cf::MAP;
1314	};	2373	}
1315		2374
1316	warn "end emergency map save\n";	2375	$self->reset; # polite request, might not happen
		2376	}
		2377
		2378	=item $maps = cf::map::tmp_maps
		2379
		2380	Returns an arrayref with all map paths of currently instantiated and saved
		2381	maps. May block.
		2382
		2383	=cut
		2384
		2385	sub tmp_maps() {
		2386	[
		2387	map {
		2388	utf8::decode $_;
		2389	/\.map$/
		2390	? normalise $_
		2391	: ()
		2392	} @{ aio_readdir $TMPDIR or [] }
		2393	]
		2394	}
		2395
		2396	=item $maps = cf::map::random_maps
		2397
		2398	Returns an arrayref with all map paths of currently instantiated and saved
		2399	random maps. May block.
		2400
		2401	=cut
		2402
		2403	sub random_maps() {
		2404	[
		2405	map {
		2406	utf8::decode $_;
		2407	/\.map$/
		2408	? normalise "?random/$_"
		2409	: ()
		2410	} @{ aio_readdir $RANDOMDIR or [] }
		2411	]
		2412	}
		2413
		2414	=item cf::map::unique_maps
		2415
		2416	Returns an arrayref of paths of all shared maps that have
		2417	instantiated unique items. May block.
		2418
		2419	=cut
		2420
		2421	sub unique_maps() {
		2422	[
		2423	map {
		2424	utf8::decode $_;
		2425	s/\.map$//; # TODO future compatibility hack
		2426	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2427	? ()
		2428	: normalise $_
		2429	} @{ aio_readdir $UNIQUEDIR or [] }
		2430	]
		2431	}
		2432
		2433	=item cf::map::static_maps
		2434
		2435	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2436	file in the shared directory excluding F</styles> and F</editor>). May
		2437	block.
		2438
		2439	=cut
		2440
		2441	sub static_maps() {
		2442	my @dirs = "";
		2443	my @maps;
		2444
		2445	while (@dirs) {
		2446	my $dir = shift @dirs;
		2447
		2448	next if $dir eq "/styles" || $dir eq "/editor";
		2449
		2450	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2451	or return;
		2452
		2453	for (@$files) {
		2454	s/\.map$// or next;
		2455	utf8::decode $_;
		2456	push @maps, "$dir/$_";
		2457	}
		2458
		2459	push @dirs, map "$dir/$_", @$dirs;
		2460	}
		2461
		2462	\@maps
		2463	}
		2464
		2465	=back
		2466
		2467	=head3 cf::object
		2468
		2469	=cut
		2470
		2471	package cf::object;
		2472
		2473	=over 4
		2474
		2475	=item $ob->inv_recursive
		2476
		2477	Returns the inventory of the object I<and> their inventories, recursively,
		2478	but I<not> the object itself.
		2479
		2480	=cut
		2481
		2482	sub inv_recursive_;
		2483	sub inv_recursive_ {
		2484	map { $_, inv_recursive_ $_->inv } @_
		2485	}
		2486
		2487	sub inv_recursive {
		2488	inv_recursive_ inv $_[0]
		2489	}
		2490
		2491	=item $ref = $ob->ref
		2492
		2493	Creates and returns a persistent reference to an object that can be stored as a string.
		2494
		2495	=item $ob = cf::object::deref ($refstring)
		2496
		2497	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2498	even if the object actually exists. May block.
		2499
		2500	=cut
		2501
		2502	sub deref {
		2503	my ($ref) = @_;
		2504
		2505	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2506	my ($uuid, $name) = ($1, $2);
		2507	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2508	or return;
		2509	$pl->ob->uuid eq $uuid
		2510	or return;
		2511
		2512	$pl->ob
		2513	} else {
		2514	warn "$ref: cannot resolve object reference\n";
		2515	undef
		2516	}
1317	}	2517	}
1318		2518
1319	package cf;	2519	package cf;
1320		2520
1321	=back	2521	=back
1322
1323		2522
1324	=head3 cf::object::player	2523	=head3 cf::object::player
1325		2524
1326	=over 4	2525	=over 4
1327		2526
…		…
1330	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2529	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	2530	can be C<undef>. Does the right thing when the player is currently in a
1332	dialogue with the given NPC character.	2531	dialogue with the given NPC character.
1333		2532
1334	=cut	2533	=cut
		2534
		2535	our $SAY_CHANNEL = {
		2536	id => "say",
		2537	title => "Map",
		2538	reply => "say ",
		2539	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2540	};
		2541
		2542	our $CHAT_CHANNEL = {
		2543	id => "chat",
		2544	title => "Chat",
		2545	reply => "chat ",
		2546	tooltip => "Player chat and shouts, global to the server.",
		2547	};
1335		2548
1336	# rough implementation of a future "reply" method that works	2549	# rough implementation of a future "reply" method that works
1337	# with dialog boxes.	2550	# with dialog boxes.
1338	#TODO: the first argument must go, split into a $npc->reply_to ( method	2551	#TODO: the first argument must go, split into a $npc->reply_to ( method
1339	sub cf::object::player::reply($$$;$) {	2552	sub cf::object::player::reply($$$;$) {
…		…
1341		2554
1342	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2555	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1343		2556
1344	if ($self->{record_replies}) {	2557	if ($self->{record_replies}) {
1345	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2558	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2559
1346	} else {	2560	} else {
		2561	my $pl = $self->contr;
		2562
		2563	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2564	my $dialog = $pl->{npc_dialog};
		2565	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2566
		2567	} else {
1347	$msg = $npc->name . " says: $msg" if $npc;	2568	$msg = $npc->name . " says: $msg" if $npc;
1348	$self->message ($msg, $flags);	2569	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2570	}
1349	}	2571	}
		2572	}
		2573
		2574	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2575
		2576	=cut
		2577
		2578	sub cf::object::send_msg {
		2579	my $pl = shift->contr
		2580	or return;
		2581	$pl->send_msg (@_);
1350	}	2582	}
1351		2583
1352	=item $player_object->may ("access")	2584	=item $player_object->may ("access")
1353		2585
1354	Returns wether the given player is authorized to access resource "access"	2586	Returns wether the given player is authorized to access resource "access"
…		…
1363	(ref $cf::CFG{"may_$access"}	2595	(ref $cf::CFG{"may_$access"}
1364	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2596	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1365	: $cf::CFG{"may_$access"})	2597	: $cf::CFG{"may_$access"})
1366	}	2598	}
1367		2599
		2600	=item $player_object->enter_link
		2601
		2602	Freezes the player and moves him/her to a special map (C<{link}>).
		2603
		2604	The player should be reasonably safe there for short amounts of time (e.g.
		2605	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2606	though, as the player cannot control the character while it is on the link
		2607	map.
		2608
		2609	Will never block.
		2610
		2611	=item $player_object->leave_link ($map, $x, $y)
		2612
		2613	Moves the player out of the special C<{link}> map onto the specified
		2614	map. If the map is not valid (or omitted), the player will be moved back
		2615	to the location he/she was before the call to C<enter_link>, or, if that
		2616	fails, to the emergency map position.
		2617
		2618	Might block.
		2619
		2620	=cut
		2621
		2622	sub link_map {
		2623	unless ($LINK_MAP) {
		2624	$LINK_MAP = cf::map::find "{link}"
		2625	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2626	$LINK_MAP->load;
		2627	}
		2628
		2629	$LINK_MAP
		2630	}
		2631
1368	sub cf::object::player::enter_link {	2632	sub cf::object::player::enter_link {
1369	my ($self) = @_;	2633	my ($self) = @_;
1370		2634
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;	2635	$self->deactivate_recursive;
		2636
		2637	++$self->{_link_recursion};
		2638
		2639	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2640
		2641	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2642	if $self->map && $self->map->{path} ne "{link}";
		2643
		2644	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1378	}	2645	}
1379		2646
1380	sub cf::object::player::leave_link {	2647	sub cf::object::player::leave_link {
1381	my ($self, $map, $x, $y) = @_;	2648	my ($self, $map, $x, $y) = @_;
1382		2649
		2650	return unless $self->contr->active;
		2651
1383	my $link_pos = delete $self->{_link_pos};	2652	my $link_pos = delete $self->{_link_pos};
1384		2653
1385	unless ($map) {	2654	unless ($map) {
1386	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1387
1388	# restore original map position	2655	# restore original map position
1389	($map, $x, $y) = @{ $link_pos || [] };	2656	($map, $x, $y) = @{ $link_pos || [] };
1390	$map = cf::map::find_map $map;	2657	$map = cf::map::find $map;
1391		2658
1392	unless ($map) {	2659	unless ($map) {
1393	($map, $x, $y) = @$EMERGENCY_POSITION;	2660	($map, $x, $y) = @$EMERGENCY_POSITION;
1394	$map = cf::map::find_map $map	2661	$map = cf::map::find $map
1395	or die "FATAL: cannot load emergency map\n";	2662	or die "FATAL: cannot load emergency map\n";
1396	}	2663	}
1397	}	2664	}
1398		2665
1399	($x, $y) = (-1, -1)	2666	($x, $y) = (-1, -1)
1400	unless (defined $x) && (defined $y);	2667	unless (defined $x) && (defined $y);
1401		2668
1402	# use -1 or undef as default coordinates, not 0, 0	2669	# use -1 or undef as default coordinates, not 0, 0
1403	($x, $y) = ($map->enter_x, $map->enter_y)	2670	($x, $y) = ($map->enter_x, $map->enter_y)
1404	if $x <=0 && $y <= 0;	2671	if $x <= 0 && $y <= 0;
1405		2672
1406	$map->load;	2673	$map->load;
		2674	$map->load_neighbours;
1407		2675
		2676	return unless $self->contr->active;
		2677
		2678	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2679	if ($self->enter_map ($map, $x, $y)) {
		2680	# entering was successful
		2681	delete $self->{_link_recursion};
		2682	# only activate afterwards, to support waiting in hooks
1408	$self->activate_recursive;	2683	$self->activate_recursive;
1409	$self->enter_map ($map, $x, $y);	2684	}
1410	}
1411		2685
1412	=item $player_object->goto_map ($map, $x, $y)	2686	}
1413		2687
1414	=cut	2688	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1415		2689
		2690	Moves the player to the given map-path and coordinates by first freezing
		2691	her, loading and preparing them map, calling the provided $check callback
		2692	that has to return the map if sucecssful, and then unfreezes the player on
		2693	the new (success) or old (failed) map position. In either case, $done will
		2694	be called at the end of this process.
		2695
		2696	Note that $check will be called with a potentially non-loaded map, so if
		2697	it needs a loaded map it has to call C<< ->load >>.
		2698
		2699	=cut
		2700
		2701	our $GOTOGEN;
		2702
1416	sub cf::object::player::goto_map {	2703	sub cf::object::player::goto {
1417	my ($self, $path, $x, $y) = @_;	2704	my ($self, $path, $x, $y, $check, $done) = @_;
		2705
		2706	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2707	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2708	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2709	($path, $x, $y) = @$EMERGENCY_POSITION;
		2710	}
		2711
		2712	# do generation counting so two concurrent goto's will be executed in-order
		2713	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1418		2714
1419	$self->enter_link;	2715	$self->enter_link;
1420		2716
1421	(Coro::async {	2717	(async {
1422	$path = new cf::path $path;	2718	$Coro::current->{desc} = "player::goto $path $x $y";
1423		2719
1424	my $map = cf::map::find_map $path->as_string;	2720	# *tag paths override both path and x|y
		2721	if ($path =~ /^\*(.*)$/) {
		2722	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2723	my $ob = $obs[rand @obs];
		2724
		2725	# see if we actually can go there
		2726	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2727	$ob = $obs[rand @obs];
		2728	} else {
		2729	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2730	}
		2731	# else put us there anyways for now #d#
		2732
		2733	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2734	} else {
		2735	($path, $x, $y) = (undef, undef, undef);
		2736	}
		2737	}
		2738
		2739	my $map = eval {
		2740	my $map = defined $path ? cf::map::find $path : undef;
		2741
		2742	if ($map) {
1425	$map = $map->customise_for ($self) if $map;	2743	$map = $map->customise_for ($self);
		2744	$map = $check->($map, $x, $y, $self) if $check && $map;
		2745	} else {
		2746	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2747	}
1426		2748
1427	warn "entering ", $map->path, " at ($x, $y)\n"
1428	if $map;	2749	$map
		2750	};
1429		2751
		2752	if ($@) {
		2753	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2754	LOG llevError | logBacktrace, Carp::longmess $@;
		2755	}
		2756
		2757	if ($gen == $self->{_goto_generation}) {
		2758	delete $self->{_goto_generation};
1430	$self->leave_link ($map, $x, $y);	2759	$self->leave_link ($map, $x, $y);
		2760	}
		2761
		2762	$done->($self) if $done;
1431	})->prio (1);	2763	})->prio (1);
1432	}	2764	}
1433		2765
1434	=item $player_object->enter_exit ($exit_object)	2766	=item $player_object->enter_exit ($exit_object)
1435		2767
…		…
1437		2769
1438	sub parse_random_map_params {	2770	sub parse_random_map_params {
1439	my ($spec) = @_;	2771	my ($spec) = @_;
1440		2772
1441	my $rmp = { # defaults	2773	my $rmp = { # defaults
1442	xsize => 10,	2774	xsize => (cf::rndm 15, 40),
1443	ysize => 10,	2775	ysize => (cf::rndm 15, 40),
		2776	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2777	#layout => string,
1444	};	2778	};
1445		2779
1446	for (split /\n/, $spec) {	2780	for (split /\n/, $spec) {
1447	my ($k, $v) = split /\s+/, $_, 2;	2781	my ($k, $v) = split /\s+/, $_, 2;
1448		2782
…		…
1460	# that depends on the exit object	2794	# that depends on the exit object
1461		2795
1462	my $rmp = parse_random_map_params $exit->msg;	2796	my $rmp = parse_random_map_params $exit->msg;
1463		2797
1464	if ($exit->map) {	2798	if ($exit->map) {
1465	$rmp->{region} = $exit->map->region_name;	2799	$rmp->{region} = $exit->region->name;
1466	$rmp->{origin_map} = $exit->map->path;	2800	$rmp->{origin_map} = $exit->map->path;
1467	$rmp->{origin_x} = $exit->x;	2801	$rmp->{origin_x} = $exit->x;
1468	$rmp->{origin_y} = $exit->y;	2802	$rmp->{origin_y} = $exit->y;
		2803
		2804	$exit->map->touch;
1469	}	2805	}
1470		2806
1471	$rmp->{random_seed} ||= $exit->random_seed;	2807	$rmp->{random_seed} ||= $exit->random_seed;
1472		2808
1473	my $data = cf::to_json $rmp;	2809	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1474	my $md5 = Digest::MD5::md5_hex $data;	2810	my $md5 = Digest::MD5::md5_hex $data;
		2811	my $meta = "$RANDOMDIR/$md5.meta";
1475		2812
1476	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2813	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1477	aio_write $fh, 0, (length $data), $data, 0;	2814	aio_write $fh, 0, (length $data), $data, 0;
		2815	undef $fh;
		2816	aio_rename "$meta~", $meta;
1478		2817
		2818	my $slaying = "?random/$md5";
		2819
		2820	if ($exit->valid) {
1479	$exit->slaying ("?random/$md5");	2821	$exit->slaying ("?random/$md5");
1480	$exit->msg (undef);	2822	$exit->msg (undef);
		2823	}
1481	}	2824	}
1482	}	2825	}
1483		2826
1484	sub cf::object::player::enter_exit {	2827	sub cf::object::player::enter_exit {
1485	my ($self, $exit) = @_;	2828	my ($self, $exit) = @_;
1486		2829
1487	return unless $self->type == cf::PLAYER;	2830	return unless $self->type == cf::PLAYER;
1488		2831
1489	$self->enter_link;	2832	$self->enter_link;
1490		2833
1491	(Coro::async {	2834	(async {
		2835	$Coro::current->{desc} = "enter_exit";
		2836
1492	unless (eval {	2837	unless (eval {
		2838	$self->deactivate_recursive; # just to be sure
1493		2839
		2840	# random map handling
		2841	{
		2842	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2843
1494	prepare_random_map $exit	2844	prepare_random_map $exit
1495	if $exit->slaying eq "/!";	2845	if $exit->slaying eq "/!";
		2846	}
1496		2847
1497	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2848	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1498	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2849	my $x = $exit->stats->hp;
		2850	my $y = $exit->stats->sp;
1499		2851
		2852	$self->goto ($map, $x, $y);
		2853
		2854	# if exit is damned, update players death & WoR home-position
		2855	$self->contr->savebed ($map, $x, $y)
		2856	if $exit->flag (cf::FLAG_DAMNED);
		2857
1500	1;	2858	1
1501	}) {	2859	}) {
1502	$self->message ("Something went wrong deep within the crossfire server. "	2860	$self->message ("Something went wrong deep within the deliantra server. "
1503	. "I'll try to bring you back to the map you were before. "	2861	. "I'll try to bring you back to the map you were before. "
1504	. "Please report this to the dungeon master",	2862	. "Please report this to the dungeon master!",
1505	cf::NDI_UNIQUE | cf::NDI_RED);	2863	cf::NDI_UNIQUE | cf::NDI_RED);
1506		2864
1507	warn "ERROR in enter_exit: $@";	2865	error "ERROR in enter_exit: $@";
1508	$self->leave_link;	2866	$self->leave_link;
1509	}	2867	}
1510	})->prio (1);	2868	})->prio (1);
1511	}	2869	}
1512		2870
…		…
1523		2881
1524	sub cf::client::send_drawinfo {	2882	sub cf::client::send_drawinfo {
1525	my ($self, $text, $flags) = @_;	2883	my ($self, $text, $flags) = @_;
1526		2884
1527	utf8::encode $text;	2885	utf8::encode $text;
1528	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2886	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1529	}	2887	}
1530		2888
		2889	=item $client->send_big_packet ($pkt)
		2890
		2891	Like C<send_packet>, but tries to compress large packets, and fragments
		2892	them as required.
		2893
		2894	=cut
		2895
		2896	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2897
		2898	sub cf::client::send_big_packet {
		2899	my ($self, $pkt) = @_;
		2900
		2901	# try lzf for large packets
		2902	$pkt = "lzf " . Compress::LZF::compress $pkt
		2903	if 1024 <= length $pkt and $self->{can_lzf};
		2904
		2905	# split very large packets
		2906	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2907	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2908	$pkt = "frag";
		2909	}
		2910
		2911	$self->send_packet ($pkt);
		2912	}
		2913
		2914	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2915
		2916	Send a drawinfo or msg packet to the client, formatting the msg for the
		2917	client if neccessary. C<$type> should be a string identifying the type of
		2918	the message, with C<log> being the default. If C<$color> is negative, suppress
		2919	the message unless the client supports the msg packet.
		2920
		2921	=cut
		2922
		2923	# non-persistent channels (usually the info channel)
		2924	our %CHANNEL = (
		2925	"c/motd" => {
		2926	id => "infobox",
		2927	title => "MOTD",
		2928	reply => undef,
		2929	tooltip => "The message of the day",
		2930	},
		2931	"c/identify" => {
		2932	id => "infobox",
		2933	title => "Identify",
		2934	reply => undef,
		2935	tooltip => "Items recently identified",
		2936	},
		2937	"c/examine" => {
		2938	id => "infobox",
		2939	title => "Examine",
		2940	reply => undef,
		2941	tooltip => "Signs and other items you examined",
		2942	},
		2943	"c/shopinfo" => {
		2944	id => "infobox",
		2945	title => "Shop Info",
		2946	reply => undef,
		2947	tooltip => "What your bargaining skill tells you about the shop",
		2948	},
		2949	"c/book" => {
		2950	id => "infobox",
		2951	title => "Book",
		2952	reply => undef,
		2953	tooltip => "The contents of a note or book",
		2954	},
		2955	"c/lookat" => {
		2956	id => "infobox",
		2957	title => "Look",
		2958	reply => undef,
		2959	tooltip => "What you saw there",
		2960	},
		2961	"c/who" => {
		2962	id => "infobox",
		2963	title => "Players",
		2964	reply => undef,
		2965	tooltip => "Shows players who are currently online",
		2966	},
		2967	"c/body" => {
		2968	id => "infobox",
		2969	title => "Body Parts",
		2970	reply => undef,
		2971	tooltip => "Shows which body parts you posess and are available",
		2972	},
		2973	"c/statistics" => {
		2974	id => "infobox",
		2975	title => "Statistics",
		2976	reply => undef,
		2977	tooltip => "Shows your primary statistics",
		2978	},
		2979	"c/skills" => {
		2980	id => "infobox",
		2981	title => "Skills",
		2982	reply => undef,
		2983	tooltip => "Shows your experience per skill and item power",
		2984	},
		2985	"c/shopitems" => {
		2986	id => "infobox",
		2987	title => "Shop Items",
		2988	reply => undef,
		2989	tooltip => "Shows the items currently for sale in this shop",
		2990	},
		2991	"c/resistances" => {
		2992	id => "infobox",
		2993	title => "Resistances",
		2994	reply => undef,
		2995	tooltip => "Shows your resistances",
		2996	},
		2997	"c/pets" => {
		2998	id => "infobox",
		2999	title => "Pets",
		3000	reply => undef,
		3001	tooltip => "Shows information abotu your pets/a specific pet",
		3002	},
		3003	"c/perceiveself" => {
		3004	id => "infobox",
		3005	title => "Perceive Self",
		3006	reply => undef,
		3007	tooltip => "You gained detailed knowledge about yourself",
		3008	},
		3009	"c/uptime" => {
		3010	id => "infobox",
		3011	title => "Uptime",
		3012	reply => undef,
		3013	tooltip => "How long the server has been running since last restart",
		3014	},
		3015	"c/mapinfo" => {
		3016	id => "infobox",
		3017	title => "Map Info",
		3018	reply => undef,
		3019	tooltip => "Information related to the maps",
		3020	},
		3021	"c/party" => {
		3022	id => "party",
		3023	title => "Party",
		3024	reply => "gsay ",
		3025	tooltip => "Messages and chat related to your party",
		3026	},
		3027	"c/death" => {
		3028	id => "death",
		3029	title => "Death",
		3030	reply => undef,
		3031	tooltip => "Reason for and more info about your most recent death",
		3032	},
		3033	"c/say" => $SAY_CHANNEL,
		3034	"c/chat" => $CHAT_CHANNEL,
		3035	);
		3036
		3037	sub cf::client::send_msg {
		3038	my ($self, $channel, $msg, $color, @extra) = @_;
		3039
		3040	$msg = $self->pl->expand_cfpod ($msg)
		3041	unless $color & cf::NDI_VERBATIM;
		3042
		3043	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3044
		3045	# check predefined channels, for the benefit of C
		3046	if ($CHANNEL{$channel}) {
		3047	$channel = $CHANNEL{$channel};
		3048
		3049	$self->ext_msg (channel_info => $channel);
		3050	$channel = $channel->{id};
		3051
		3052	} elsif (ref $channel) {
		3053	# send meta info to client, if not yet sent
		3054	unless (exists $self->{channel}{$channel->{id}}) {
		3055	$self->{channel}{$channel->{id}} = $channel;
		3056	$self->ext_msg (channel_info => $channel);
		3057	}
		3058
		3059	$channel = $channel->{id};
		3060	}
		3061
		3062	return unless @extra || length $msg;
		3063
		3064	# default colour, mask it out
		3065	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3066	if $color & cf::NDI_DEF;
		3067
		3068	my $pkt = "msg "
		3069	. $self->{json_coder}->encode (
		3070	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3071	);
		3072
		3073	$self->send_big_packet ($pkt);
		3074	}
		3075
		3076	=item $client->ext_msg ($type, @msg)
		3077
		3078	Sends an ext event to the client.
		3079
		3080	=cut
		3081
		3082	sub cf::client::ext_msg($$@) {
		3083	my ($self, $type, @msg) = @_;
		3084
		3085	if ($self->extcmd == 2) {
		3086	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3087	} elsif ($self->extcmd == 1) { # TODO: remove
		3088	push @msg, msgtype => "event_$type";
		3089	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3090	}
		3091	}
		3092
		3093	=item $client->ext_reply ($msgid, @msg)
		3094
		3095	Sends an ext reply to the client.
		3096
		3097	=cut
		3098
		3099	sub cf::client::ext_reply($$@) {
		3100	my ($self, $id, @msg) = @_;
		3101
		3102	if ($self->extcmd == 2) {
		3103	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3104	} elsif ($self->extcmd == 1) {
		3105	#TODO: version 1, remove
		3106	unshift @msg, msgtype => "reply", msgid => $id;
		3107	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3108	}
		3109	}
1531		3110
1532	=item $success = $client->query ($flags, "text", \&cb)	3111	=item $success = $client->query ($flags, "text", \&cb)
1533		3112
1534	Queues a query to the client, calling the given callback with	3113	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>,	3114	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>.	3115	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1537		3116
1538	Queries can fail, so check the return code. Or don't, as queries will become	3117	Queries can fail, so check the return code. Or don't, as queries will
1539	reliable at some point in the future.	3118	become reliable at some point in the future.
1540		3119
1541	=cut	3120	=cut
1542		3121
1543	sub cf::client::query {	3122	sub cf::client::query {
1544	my ($self, $flags, $text, $cb) = @_;	3123	my ($self, $flags, $text, $cb) = @_;
…		…
1552	utf8::encode $text;	3131	utf8::encode $text;
1553	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3132	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1554		3133
1555	$self->send_packet ($self->{query_queue}[0][0])	3134	$self->send_packet ($self->{query_queue}[0][0])
1556	if @{ $self->{query_queue} } == 1;	3135	if @{ $self->{query_queue} } == 1;
		3136
		3137	1
1557	}	3138	}
1558		3139
1559	cf::client->attach (	3140	cf::client->attach (
		3141	on_connect => sub {
		3142	my ($ns) = @_;
		3143
		3144	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3145	},
1560	on_reply => sub {	3146	on_reply => sub {
1561	my ($ns, $msg) = @_;	3147	my ($ns, $msg) = @_;
1562		3148
1563	# this weird shuffling is so that direct followup queries	3149	# this weird shuffling is so that direct followup queries
1564	# get handled first	3150	# get handled first
1565	my $queue = delete $ns->{query_queue};	3151	my $queue = delete $ns->{query_queue}
		3152	or return; # be conservative, not sure how that can happen, but we saw a crash here
1566		3153
1567	(shift @$queue)->[1]->($msg);	3154	(shift @$queue)->[1]->($msg);
		3155	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1568		3156
1569	push @{ $ns->{query_queue} }, @$queue;	3157	push @{ $ns->{query_queue} }, @$queue;
1570		3158
1571	if (@{ $ns->{query_queue} } == @$queue) {	3159	if (@{ $ns->{query_queue} } == @$queue) {
1572	if (@$queue) {	3160	if (@$queue) {
…		…
1574	} else {	3162	} else {
1575	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3163	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1576	}	3164	}
1577	}	3165	}
1578	},	3166	},
		3167	on_exticmd => sub {
		3168	my ($ns, $buf) = @_;
		3169
		3170	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3171
		3172	if (ref $msg) {
		3173	my ($type, $reply, @payload) =
		3174	"ARRAY" eq ref $msg
		3175	? @$msg
		3176	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3177
		3178	my @reply;
		3179
		3180	if (my $cb = $EXTICMD{$type}) {
		3181	@reply = $cb->($ns, @payload);
		3182	}
		3183
		3184	$ns->ext_reply ($reply, @reply)
		3185	if $reply;
		3186
		3187	} else {
		3188	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3189	}
		3190
		3191	cf::override;
		3192	},
1579	);	3193	);
1580		3194
1581	=item $client->coro (\&cb)	3195	=item $client->async (\&cb)
1582		3196
1583	Create a new coroutine, running the specified callback. The coroutine will	3197	Create a new coroutine, running the specified callback. The coroutine will
1584	be automatically cancelled when the client gets destroyed (e.g. on logout,	3198	be automatically cancelled when the client gets destroyed (e.g. on logout,
1585	or loss of connection).	3199	or loss of connection).
1586		3200
1587	=cut	3201	=cut
1588		3202
1589	sub cf::client::coro {	3203	sub cf::client::async {
1590	my ($self, $cb) = @_;	3204	my ($self, $cb) = @_;
1591		3205
1592	my $coro; $coro = async {	3206	my $coro = &Coro::async ($cb);
1593	eval {
1594	$cb->();
1595	};
1596	warn $@ if $@;
1597	};
1598		3207
1599	$coro->on_destroy (sub {	3208	$coro->on_destroy (sub {
1600	delete $self->{_coro}{$coro+0};	3209	delete $self->{_coro}{$coro+0};
1601	});	3210	});
1602		3211
…		…
1604		3213
1605	$coro	3214	$coro
1606	}	3215	}
1607		3216
1608	cf::client->attach (	3217	cf::client->attach (
1609	on_destroy => sub {	3218	on_client_destroy => sub {
1610	my ($ns) = @_;	3219	my ($ns) = @_;
1611		3220
1612	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3221	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1613	},	3222	},
1614	);	3223	);
…		…
1629	our $safe = new Safe "safe";	3238	our $safe = new Safe "safe";
1630	our $safe_hole = new Safe::Hole;	3239	our $safe_hole = new Safe::Hole;
1631		3240
1632	$SIG{FPE} = 'IGNORE';	3241	$SIG{FPE} = 'IGNORE';
1633		3242
1634	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3243	$safe->permit_only (Opcode::opset qw(
		3244	:base_core :base_mem :base_orig :base_math :base_loop
		3245	grepstart grepwhile mapstart mapwhile
		3246	sort time
		3247	));
1635		3248
1636	# here we export the classes and methods available to script code	3249	# here we export the classes and methods available to script code
1637		3250
1638	=pod	3251	=pod
1639		3252
1640	The following fucntions and emthods are available within a safe environment:	3253	The following functions and methods are available within a safe environment:
1641		3254
1642	cf::object contr pay_amount pay_player map	3255	cf::object
		3256	contr pay_amount pay_player map x y force_find force_add destroy
		3257	insert remove name archname title slaying race decrease split
		3258	value
		3259
1643	cf::object::player player	3260	cf::object::player
1644	cf::player peaceful	3261	player
1645	cf::map trigger	3262
		3263	cf::player
		3264	peaceful
		3265
		3266	cf::map
		3267	trigger
1646		3268
1647	=cut	3269	=cut
1648		3270
1649	for (	3271	for (
1650	["cf::object" => qw(contr pay_amount pay_player map)],	3272	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3273	insert remove inv nrof name archname title slaying race
		3274	decrease split destroy change_exp value msg lore send_msg)],
1651	["cf::object::player" => qw(player)],	3275	["cf::object::player" => qw(player)],
1652	["cf::player" => qw(peaceful)],	3276	["cf::player" => qw(peaceful send_msg)],
1653	["cf::map" => qw(trigger)],	3277	["cf::map" => qw(trigger)],
1654	) {	3278	) {
1655	no strict 'refs';
1656	my ($pkg, @funs) = @$_;	3279	my ($pkg, @funs) = @$_;
1657	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3280	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1658	for @funs;	3281	for @funs;
1659	}	3282	}
1660		3283
…		…
1675		3298
1676	my $qcode = $code;	3299	my $qcode = $code;
1677	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3300	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1678	$qcode =~ s/\n/\\n/g;	3301	$qcode =~ s/\n/\\n/g;
1679		3302
		3303	%vars = (_dummy => 0) unless %vars;
		3304
		3305	my @res;
1680	local $_;	3306	local $_;
1681	local @safe::cf::_safe_eval_args = values %vars;
1682		3307
1683	my $eval =	3308	my $eval =
1684	"do {\n"	3309	"do {\n"
1685	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3310	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1686	. "#line 0 \"{$qcode}\"\n"	3311	. "#line 0 \"{$qcode}\"\n"
1687	. $code	3312	. $code
1688	. "\n}"	3313	. "\n}"
1689	;	3314	;
1690		3315
		3316	if ($CFG{safe_eval}) {
1691	sub_generation_inc;	3317	sub_generation_inc;
		3318	local @safe::cf::_safe_eval_args = values %vars;
1692	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3319	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1693	sub_generation_inc;	3320	sub_generation_inc;
		3321	} else {
		3322	local @cf::_safe_eval_args = values %vars;
		3323	@res = wantarray ? eval eval : scalar eval $eval;
		3324	}
1694		3325
1695	if ($@) {	3326	if ($@) {
1696	warn "$@";	3327	warn "$@",
1697	warn "while executing safe code '$code'\n";	3328	"while executing safe code '$code'\n",
1698	warn "with arguments " . (join " ", %vars) . "\n";	3329	"with arguments " . (join " ", %vars) . "\n";
1699	}	3330	}
1700		3331
1701	wantarray ? @res : $res[0]	3332	wantarray ? @res : $res[0]
1702	}	3333	}
1703		3334
…		…
1717	=cut	3348	=cut
1718		3349
1719	sub register_script_function {	3350	sub register_script_function {
1720	my ($fun, $cb) = @_;	3351	my ($fun, $cb) = @_;
1721		3352
1722	no strict 'refs';	3353	$fun = "safe::$fun" if $CFG{safe_eval};
1723	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3354	*$fun = $safe_hole->wrap ($cb);
1724	}	3355	}
1725		3356
1726	=back	3357	=back
1727		3358
1728	=cut	3359	=cut
1729		3360
1730	#############################################################################	3361	#############################################################################
		3362	# the server's init and main functions
1731		3363
1732	=head2 EXTENSION DATABASE SUPPORT	3364	sub load_facedata($) {
		3365	my ($path) = @_;
1733		3366
1734	Crossfire maintains a very simple database for extension use. It can	3367	# HACK to clear player env face cache, we need some signal framework
1735	currently store anything that can be serialised using Storable, which	3368	# for this (global event?)
1736	excludes objects.	3369	%ext::player_env::MUSIC_FACE_CACHE = ();
1737		3370
1738	The parameter C<$family> should best start with the name of the extension	3371	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1739	using it, it should be unique.
1740		3372
1741	=over 4	3373	trace "loading facedata from $path\n";
1742		3374
1743	=item $hashref = cf::db_get $family	3375	my $facedata;
		3376	0 < aio_load $path, $facedata
		3377	or die "$path: $!";
1744		3378
1745	Return a hashref for use by the extension C<$family>, which can be	3379	$facedata = Coro::Storable::thaw $facedata;
1746	modified. After modifications, you have to call C<cf::db_dirty> or
1747	C<cf::db_sync>.
1748		3380
1749	=item $value = cf::db_get $family => $key	3381	$facedata->{version} == 2
		3382	or cf::cleanup "$path: version mismatch, cannot proceed.";
1750		3383
1751	Returns a single value from the database	3384	# patch in the exptable
1752		3385	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1753	=item cf::db_put $family => $hashref	3386	$facedata->{resource}{"res/exp_table"} = {
1754		3387	type => FT_RSRC,
1755	Stores the given family hashref into the database. Updates are delayed, if	3388	data => $exp_table,
1756	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3389	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	});	3390	};
		3391	cf::cede_to_tick;
1806		3392
1807	sub db_dirty() {
1808	$dirty = 1;
1809	$idle->start;
1810	}	3393	{
		3394	my $faces = $facedata->{faceinfo};
1811		3395
1812	sub db_get($;$) {	3396	while (my ($face, $info) = each %$faces) {
1813	@_ >= 2	3397	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1814	? $DB->{$_[0]}{$_[1]}
1815	: ($DB->{$_[0]} ||= { })
1816	}
1817		3398
1818	sub db_put($$;$) {	3399	cf::face::set_visibility $idx, $info->{visibility};
1819	if (@_ >= 3) {	3400	cf::face::set_magicmap $idx, $info->{magicmap};
1820	$DB->{$_[0]}{$_[1]} = $_[2];	3401	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1821	} else {	3402	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1822	$DB->{$_[0]} = $_[1];
1823	}
1824	db_dirty;
1825	}
1826		3403
1827	cf::global->attach (	3404	cf::cede_to_tick;
1828	prio => 10000,
1829	on_cleanup => sub {
1830	db_sync;
1831	},	3405	}
1832	);
1833	}
1834		3406
1835	#############################################################################	3407	while (my ($face, $info) = each %$faces) {
1836	# the server's main()	3408	next unless $info->{smooth};
1837		3409
1838	sub cfg_load {	3410	my $idx = cf::face::find $face
		3411	or next;
		3412
		3413	if (my $smooth = cf::face::find $info->{smooth}) {
		3414	cf::face::set_smooth $idx, $smooth;
		3415	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3416	} else {
		3417	error "smooth face '$info->{smooth}' not found for face '$face'";
		3418	}
		3419
		3420	cf::cede_to_tick;
		3421	}
		3422	}
		3423
		3424	{
		3425	my $anims = $facedata->{animinfo};
		3426
		3427	while (my ($anim, $info) = each %$anims) {
		3428	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3429	cf::cede_to_tick;
		3430	}
		3431
		3432	cf::anim::invalidate_all; # d'oh
		3433	}
		3434
		3435	{
		3436	my $res = $facedata->{resource};
		3437
		3438	while (my ($name, $info) = each %$res) {
		3439	if (defined $info->{type}) {
		3440	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3441
		3442	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3443	cf::face::set_type $idx, $info->{type};
		3444	} else {
		3445	$RESOURCE{$name} = $info; # unused
		3446	}
		3447
		3448	cf::cede_to_tick;
		3449	}
		3450	}
		3451
		3452	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3453
		3454	1
		3455	}
		3456
		3457	register_exticmd fx_want => sub {
		3458	my ($ns, $want) = @_;
		3459
		3460	while (my ($k, $v) = each %$want) {
		3461	$ns->fx_want ($k, $v);
		3462	}
		3463	};
		3464
		3465	sub load_resource_file($) {
		3466	my $guard = lock_acquire "load_resource_file";
		3467
		3468	my $status = load_resource_file_ $_[0];
		3469	get_slot 0.1, 100;
		3470	cf::arch::commit_load;
		3471
		3472	$status
		3473	}
		3474
		3475	sub reload_regions {
		3476	# HACK to clear player env face cache, we need some signal framework
		3477	# for this (global event?)
		3478	%ext::player_env::MUSIC_FACE_CACHE = ();
		3479
		3480	load_resource_file "$MAPDIR/regions"
		3481	or die "unable to load regions file\n";
		3482
		3483	for (cf::region::list) {
		3484	$_->{match} = qr/$_->{match}/
		3485	if exists $_->{match};
		3486	}
		3487	}
		3488
		3489	sub reload_facedata {
		3490	load_facedata "$DATADIR/facedata"
		3491	or die "unable to load facedata\n";
		3492	}
		3493
		3494	sub reload_archetypes {
		3495	load_resource_file "$DATADIR/archetypes"
		3496	or die "unable to load archetypes\n";
		3497	}
		3498
		3499	sub reload_treasures {
		3500	load_resource_file "$DATADIR/treasures"
		3501	or die "unable to load treasurelists\n";
		3502	}
		3503
		3504	sub reload_sound {
		3505	trace "loading sound config from $DATADIR/sound\n";
		3506
		3507	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3508	or die "$DATADIR/sound $!";
		3509
		3510	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3511
		3512	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3513	my $sound = $soundconf->{compat}[$_]
		3514	or next;
		3515
		3516	my $face = cf::face::find "sound/$sound->[1]";
		3517	cf::sound::set $sound->[0] => $face;
		3518	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3519	}
		3520
		3521	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3522	my $face = cf::face::find "sound/$v";
		3523	cf::sound::set $k => $face;
		3524	}
		3525	}
		3526
		3527	sub reload_resources {
		3528	trace "reloading resource files...\n";
		3529
		3530	reload_facedata;
		3531	reload_sound;
		3532	reload_archetypes;
		3533	reload_regions;
		3534	reload_treasures;
		3535
		3536	trace "finished reloading resource files\n";
		3537	}
		3538
		3539	sub reload_config {
		3540	trace "reloading config file...\n";
		3541
1839	open my $fh, "<:utf8", cf::confdir . "/config"	3542	open my $fh, "<:utf8", "$CONFDIR/config"
1840	or return;	3543	or return;
1841		3544
1842	local $/;	3545	local $/;
1843	*CFG = YAML::Syck::Load <$fh>;	3546	*CFG = YAML::XS::Load scalar <$fh>;
		3547
		3548	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3549
		3550	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3551	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3552
		3553	if (exists $CFG{mlockall}) {
		3554	eval {
		3555	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3556	and die "WARNING: m(un)lockall failed: $!\n";
		3557	};
		3558	warn $@ if $@;
		3559	}
		3560
		3561	trace "finished reloading resource files\n";
		3562	}
		3563
		3564	sub pidfile() {
		3565	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3566	or die "$PIDFILE: $!";
		3567	flock $fh, &Fcntl::LOCK_EX
		3568	or die "$PIDFILE: flock: $!";
		3569	$fh
		3570	}
		3571
		3572	# make sure only one server instance is running at any one time
		3573	sub atomic {
		3574	my $fh = pidfile;
		3575
		3576	my $pid = <$fh>;
		3577	kill 9, $pid if $pid > 0;
		3578
		3579	seek $fh, 0, 0;
		3580	print $fh $$;
		3581	}
		3582
		3583	sub main_loop {
		3584	trace "EV::loop starting\n";
		3585	if (1) {
		3586	EV::loop;
		3587	}
		3588	trace "EV::loop returned\n";
		3589	goto &main_loop unless $REALLY_UNLOOP;
1844	}	3590	}
1845		3591
1846	sub main {	3592	sub main {
		3593	cf::init_globals; # initialise logging
		3594
		3595	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3596	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3597	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3598	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3599
		3600	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3601
1847	# we must not ever block the main coroutine	3602	# we must not ever block the main coroutine
1848	local $Coro::idle = sub {	3603	local $Coro::idle = sub {
1849	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3604	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1850	(Coro::unblock_sub {	3605	(async {
1851	Event::one_event;	3606	$Coro::current->{desc} = "IDLE BUG HANDLER";
1852	})->();	3607	EV::loop EV::LOOP_ONESHOT;
		3608	})->prio (Coro::PRIO_MAX);
1853	};	3609	};
1854		3610
1855	cfg_load;	3611	evthread_start IO::AIO::poll_fileno;
1856	db_load;	3612
		3613	cf::sync_job {
		3614	cf::incloader::init ();
		3615
		3616	cf::init_experience;
		3617	cf::init_anim;
		3618	cf::init_attackmess;
		3619	cf::init_dynamic;
		3620
		3621	cf::load_settings;
		3622	cf::load_materials;
		3623
		3624	reload_resources;
		3625	reload_config;
		3626	db_init;
		3627
		3628	cf::init_uuid;
		3629	cf::init_signals;
		3630	cf::init_skills;
		3631
		3632	cf::init_beforeplay;
		3633
		3634	atomic;
		3635
1857	load_extensions;	3636	load_extensions;
1858	Event::loop;	3637
		3638	utime time, time, $RUNTIMEFILE;
		3639
		3640	# no (long-running) fork's whatsoever before this point(!)
		3641	use POSIX ();
		3642	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3643
		3644	(pop @POST_INIT)->(0) while @POST_INIT;
		3645	};
		3646
		3647	cf::object::thawer::errors_are_fatal 0;
		3648	info "parse errors in files are no longer fatal from this point on.\n";
		3649
		3650	my $free_main; $free_main = EV::idle sub {
		3651	undef $free_main;
		3652	undef &main; # free gobs of memory :)
		3653	};
		3654
		3655	goto &main_loop;
1859	}	3656	}
1860		3657
1861	#############################################################################	3658	#############################################################################
1862	# initialisation	3659	# initialisation and cleanup
1863		3660
		3661	# install some emergency cleanup handlers
		3662	BEGIN {
		3663	our %SIGWATCHER = ();
		3664	for my $signal (qw(INT HUP TERM)) {
		3665	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3666	cf::cleanup "SIG$signal";
		3667	};
		3668	}
		3669	}
		3670
		3671	sub write_runtime_sync {
		3672	my $t0 = AE::time;
		3673
		3674	# first touch the runtime file to show we are still running:
		3675	# the fsync below can take a very very long time.
		3676
		3677	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3678
		3679	my $guard = cf::lock_acquire "write_runtime";
		3680
		3681	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3682	or return;
		3683
		3684	my $value = $cf::RUNTIME + 90 + 10;
		3685	# 10 is the runtime save interval, for a monotonic clock
		3686	# 60 allows for the watchdog to kill the server.
		3687
		3688	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3689	and return;
		3690
		3691	# always fsync - this file is important
		3692	aio_fsync $fh
		3693	and return;
		3694
		3695	# touch it again to show we are up-to-date
		3696	aio_utime $fh, undef, undef;
		3697
		3698	close $fh
		3699	or return;
		3700
		3701	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3702	and return;
		3703
		3704	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3705
		3706	1
		3707	}
		3708
		3709	our $uuid_lock;
		3710	our $uuid_skip;
		3711
		3712	sub write_uuid_sync($) {
		3713	$uuid_skip ||= $_[0];
		3714
		3715	return if $uuid_lock;
		3716	local $uuid_lock = 1;
		3717
		3718	my $uuid = "$LOCALDIR/uuid";
		3719
		3720	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3721	or return;
		3722
		3723	my $value = uuid_seq uuid_cur;
		3724
		3725	unless ($value) {
		3726	info "cowardly refusing to write zero uuid value!\n";
		3727	return;
		3728	}
		3729
		3730	my $value = uuid_str $value + $uuid_skip;
		3731	$uuid_skip = 0;
		3732
		3733	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3734	and return;
		3735
		3736	# always fsync - this file is important
		3737	aio_fsync $fh
		3738	and return;
		3739
		3740	close $fh
		3741	or return;
		3742
		3743	aio_rename "$uuid~", $uuid
		3744	and return;
		3745
		3746	trace "uuid file written ($value).\n";
		3747
		3748	1
		3749
		3750	}
		3751
		3752	sub write_uuid($$) {
		3753	my ($skip, $sync) = @_;
		3754
		3755	$sync ? write_uuid_sync $skip
		3756	: async { write_uuid_sync $skip };
		3757	}
		3758
		3759	sub emergency_save() {
		3760	my $freeze_guard = cf::freeze_mainloop;
		3761
		3762	info "emergency_perl_save: enter\n";
		3763
		3764	# this is a trade-off: we want to be very quick here, so
		3765	# save all maps without fsync, and later call a global sync
		3766	# (which in turn might be very very slow)
		3767	local $USE_FSYNC = 0;
		3768
		3769	cf::sync_job {
		3770	cf::write_runtime_sync; # external watchdog should not bark
		3771
		3772	# use a peculiar iteration method to avoid tripping on perl
		3773	# refcount bugs in for. also avoids problems with players
		3774	# and maps saved/destroyed asynchronously.
		3775	info "emergency_perl_save: begin player save\n";
		3776	for my $login (keys %cf::PLAYER) {
		3777	my $pl = $cf::PLAYER{$login} or next;
		3778	$pl->valid or next;
		3779	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3780	$pl->save;
		3781	}
		3782	info "emergency_perl_save: end player save\n";
		3783
		3784	cf::write_runtime_sync; # external watchdog should not bark
		3785
		3786	info "emergency_perl_save: begin map save\n";
		3787	for my $path (keys %cf::MAP) {
		3788	my $map = $cf::MAP{$path} or next;
		3789	$map->valid or next;
		3790	$map->save;
		3791	}
		3792	info "emergency_perl_save: end map save\n";
		3793
		3794	cf::write_runtime_sync; # external watchdog should not bark
		3795
		3796	info "emergency_perl_save: begin database checkpoint\n";
		3797	BDB::db_env_txn_checkpoint $DB_ENV;
		3798	info "emergency_perl_save: end database checkpoint\n";
		3799
		3800	info "emergency_perl_save: begin write uuid\n";
		3801	write_uuid_sync 1;
		3802	info "emergency_perl_save: end write uuid\n";
		3803
		3804	cf::write_runtime_sync; # external watchdog should not bark
		3805
		3806	trace "emergency_perl_save: syncing database to disk";
		3807	BDB::db_env_txn_checkpoint $DB_ENV;
		3808
		3809	info "emergency_perl_save: starting sync\n";
		3810	IO::AIO::aio_sync sub {
		3811	info "emergency_perl_save: finished sync\n";
		3812	};
		3813
		3814	cf::write_runtime_sync; # external watchdog should not bark
		3815
		3816	trace "emergency_perl_save: flushing outstanding aio requests";
		3817	while (IO::AIO::nreqs || BDB::nreqs) {
		3818	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3819	}
		3820
		3821	cf::write_runtime_sync; # external watchdog should not bark
		3822	};
		3823
		3824	info "emergency_perl_save: leave\n";
		3825	}
		3826
		3827	sub post_cleanup {
		3828	my ($make_core) = @_;
		3829
		3830	IO::AIO::flush;
		3831
		3832	error Carp::longmess "post_cleanup backtrace"
		3833	if $make_core;
		3834
		3835	my $fh = pidfile;
		3836	unlink $PIDFILE if <$fh> == $$;
		3837	}
		3838
		3839	# a safer delete_package, copied from Symbol
		3840	sub clear_package($) {
		3841	my $pkg = shift;
		3842
		3843	# expand to full symbol table name if needed
		3844	unless ($pkg =~ /^main::.*::$/) {
		3845	$pkg = "main$pkg" if $pkg =~ /^::/;
		3846	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3847	$pkg .= '::' unless $pkg =~ /::$/;
		3848	}
		3849
		3850	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3851	my $stem_symtab = *{$stem}{HASH};
		3852
		3853	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3854	or return;
		3855
		3856	# clear all symbols
		3857	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3858	for my $name (keys %$leaf_symtab) {
		3859	_gv_clear *{"$pkg$name"};
		3860	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3861	}
		3862	}
		3863
1864	sub reload() {	3864	sub do_reload_perl() {
1865	# can/must only be called in main	3865	# can/must only be called in main
1866	if ($Coro::current != $Coro::main) {	3866	unless (in_main) {
1867	warn "can only reload from main coroutine\n";	3867	error "can only reload from main coroutine";
1868	return;	3868	return;
1869	}	3869	}
1870		3870
		3871	return if $RELOAD++;
		3872
		3873	my $t1 = AE::time;
		3874
		3875	while ($RELOAD) {
		3876	cf::get_slot 0.1, -1, "reload_perl";
1871	warn "reloading...";	3877	info "reloading...";
1872		3878
1873	local $FREEZE = 1;	3879	trace "entering sync_job";
		3880
		3881	cf::sync_job {
1874	cf::emergency_save;	3882	#cf::emergency_save;
1875		3883
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	3884	trace "cancelling all extension coros";
1885	$_->cancel for values %EXT_CORO;	3885	$_->cancel for values %EXT_CORO;
1886	%EXT_CORO = ();	3886	%EXT_CORO = ();
1887		3887
1888	# unload all extensions	3888	trace "removing commands";
1889	for (@exts) {	3889	%COMMAND = ();
1890	warn "unloading <$_>";
1891	unload_extension $_;
1892	}
1893		3890
1894	# unload all modules loaded from $LIBDIR	3891	trace "removing ext/exti commands";
1895	while (my ($k, $v) = each %INC) {	3892	%EXTCMD = ();
1896	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3893	%EXTICMD = ();
1897		3894
1898	warn "removing <$k>";	3895	trace "unloading/nuking all extensions";
1899	delete $INC{$k};	3896	for my $pkg (@EXTS) {
		3897	trace "... unloading $pkg";
1900		3898
1901	$k =~ s/\.pm$//;
1902	$k =~ s/\//::/g;
1903
1904	if (my $cb = $k->can ("unload_module")) {	3899	if (my $cb = $pkg->can ("unload")) {
		3900	eval {
1905	$cb->();	3901	$cb->($pkg);
		3902	1
		3903	} or error "$pkg unloaded, but with errors: $@";
		3904	}
		3905
		3906	trace "... clearing $pkg";
		3907	clear_package $pkg;
1906	}	3908	}
1907		3909
1908	Symbol::delete_package $k;	3910	trace "unloading all perl modules loaded from $LIBDIR";
		3911	while (my ($k, $v) = each %INC) {
		3912	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3913
		3914	trace "... unloading $k";
		3915	delete $INC{$k};
		3916
		3917	$k =~ s/\.pm$//;
		3918	$k =~ s/\//::/g;
		3919
		3920	if (my $cb = $k->can ("unload_module")) {
		3921	$cb->();
		3922	}
		3923
		3924	clear_package $k;
1909	}	3925	}
1910		3926
1911	# sync database to disk
1912	cf::db_sync;
1913	IO::AIO::flush;
1914
1915	# get rid of safe::, as good as possible	3927	trace "getting rid of safe::, as good as possible";
1916	Symbol::delete_package "safe::$_"	3928	clear_package "safe::$_"
1917	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3929	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1918		3930
1919	# remove register_script_function callbacks	3931	trace "unloading cf.pm \"a bit\"";
1920	# TODO
1921
1922	# unload cf.pm "a bit"
1923	delete $INC{"cf.pm"};	3932	delete $INC{"cf.pm"};
		3933	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
1924		3934
1925	# don't, removes xs symbols, too,	3935	# don't, removes xs symbols, too,
1926	# and global variables created in xs	3936	# and global variables created in xs
1927	#Symbol::delete_package __PACKAGE__;	3937	#clear_package __PACKAGE__;
1928		3938
1929	# reload cf.pm	3939	info "unload completed, starting to reload now";
		3940
1930	warn "reloading cf.pm";	3941	trace "reloading cf.pm";
1931	require cf;	3942	require cf;
1932	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3943	cf::_connect_to_perl_1;
1933		3944
1934	# load config and database again	3945	trace "loading config and database again";
1935	cf::cfg_load;	3946	cf::reload_config;
1936	cf::db_load;
1937		3947
1938	# load extensions
1939	warn "load extensions";	3948	trace "loading extensions";
1940	cf::load_extensions;	3949	cf::load_extensions;
1941		3950
1942	# reattach attachments to objects	3951	if ($REATTACH_ON_RELOAD) {
1943	warn "reattach";	3952	trace "reattaching attachments to objects/players";
1944	_global_reattach;	3953	_global_reattach; # objects, sockets
		3954	trace "reattaching attachments to maps";
		3955	reattach $_ for values %MAP;
		3956	trace "reattaching attachments to players";
		3957	reattach $_ for values %PLAYER;
		3958	}
		3959
		3960	trace "running post_init jobs";
		3961	(pop @POST_INIT)->(1) while @POST_INIT;
		3962
		3963	trace "leaving sync_job";
		3964
		3965	1
		3966	} or do {
		3967	error $@;
		3968	cf::cleanup "error while reloading, exiting.";
		3969	};
		3970
		3971	info "reloaded";
		3972	--$RELOAD;
		3973	}
		3974
		3975	$t1 = AE::time - $t1;
		3976	info "reload completed in ${t1}s\n";
		3977	};
		3978
		3979	our $RELOAD_WATCHER; # used only during reload
		3980
		3981	sub reload_perl() {
		3982	# doing reload synchronously and two reloads happen back-to-back,
		3983	# coro crashes during coro_state_free->destroy here.
		3984
		3985	$RELOAD_WATCHER ||= cf::async {
		3986	Coro::AIO::aio_wait cache_extensions;
		3987
		3988	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3989	do_reload_perl;
		3990	undef $RELOAD_WATCHER;
		3991	};
1945	};	3992	};
1946
1947	if ($@) {
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} = $LINK_MAP;
1997	}	3993	}
1998
1999	register "<global>", __PACKAGE__;
2000		3994
2001	register_command "reload" => sub {	3995	register_command "reload" => sub {
2002	my ($who, $arg) = @_;	3996	my ($who, $arg) = @_;
2003		3997
2004	if ($who->flag (FLAG_WIZ)) {	3998	if ($who->flag (FLAG_WIZ)) {
2005	$who->message ("start of reload.");
2006	reload;
2007	$who->message ("end of reload.");	3999	$who->message ("reloading server.");
		4000	async {
		4001	$Coro::current->{desc} = "perl_reload";
		4002	reload_perl;
		4003	};
2008	}	4004	}
2009	};	4005	};
2010		4006
2011	unshift @INC, $LIBDIR;	4007	#############################################################################
2012		4008
2013	$TICK_WATCHER = Event->timer (	4009	my $bug_warning = 0;
2014	reentrant => 0,	4010
2015	prio => 0,	4011	our @WAIT_FOR_TICK;
2016	at => $NEXT_TICK || $TICK,	4012	our @WAIT_FOR_TICK_BEGIN;
2017	data => WF_AUTOCANCEL,	4013
2018	cb => sub {	4014	sub wait_for_tick {
2019	unless ($FREEZE) {	4015	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4016
		4017	my $signal = new Coro::Signal;
		4018	push @WAIT_FOR_TICK, $signal;
		4019	$signal->wait;
		4020	}
		4021
		4022	sub wait_for_tick_begin {
		4023	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4024
		4025	my $signal = new Coro::Signal;
		4026	push @WAIT_FOR_TICK_BEGIN, $signal;
		4027	$signal->wait;
		4028	}
		4029
		4030	sub tick {
		4031	if ($Coro::current != $Coro::main) {
		4032	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4033	unless ++$bug_warning > 10;
		4034	return;
		4035	}
		4036
2020	cf::server_tick; # one server iteration	4037	cf::server_tick; # one server iteration
2021	$RUNTIME += $TICK;
2022	}
2023		4038
2024	$NEXT_TICK += $TICK;	4039	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2025		4040
2026	# if we are delayed by four ticks or more, skip them all	4041	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2027	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4042	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2028		4043	Coro::async_pool {
2029	$TICK_WATCHER->at ($NEXT_TICK);	4044	$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	4045	write_runtime_sync
2051	or warn "ERROR: unable to write runtime file: $!";	4046	or error "ERROR: unable to write runtime file: $!";
2052	})->();	4047	};
2053	},	4048	}
2054	);	4049
		4050	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4051	$sig->send;
		4052	}
		4053	while (my $sig = shift @WAIT_FOR_TICK) {
		4054	$sig->send;
		4055	}
		4056
		4057	$LOAD = ($NOW - $TICK_START) / $TICK;
		4058	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4059
		4060	if (0) {
		4061	if ($NEXT_TICK) {
		4062	my $jitter = $TICK_START - $NEXT_TICK;
		4063	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4064	debug "jitter $JITTER\n";#d#
		4065	}
		4066	}
		4067	}
		4068
		4069	{
		4070	# configure BDB
		4071
		4072	BDB::min_parallel 16;
		4073	BDB::max_poll_reqs $TICK * 0.1;
		4074	$AnyEvent::BDB::WATCHER->priority (1);
		4075
		4076	unless ($DB_ENV) {
		4077	$DB_ENV = BDB::db_env_create;
		4078	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4079	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4080	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4081	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4082	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4083
		4084	cf::sync_job {
		4085	eval {
		4086	BDB::db_env_open
		4087	$DB_ENV,
		4088	$BDBDIR,
		4089	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4090	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4091	0666;
		4092
		4093	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4094	};
		4095
		4096	cf::cleanup "db_env_open(db): $@" if $@;
		4097	};
		4098	}
		4099
		4100	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4101	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4102	};
		4103	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4104	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4105	};
		4106	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4107	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4108	};
		4109	}
		4110
		4111	{
		4112	# configure IO::AIO
		4113
		4114	IO::AIO::min_parallel 8;
		4115	IO::AIO::max_poll_time $TICK * 0.1;
		4116	undef $AnyEvent::AIO::WATCHER;
		4117	}
		4118
		4119	my $_log_backtrace;
		4120
		4121	sub _log_backtrace {
		4122	my ($msg, @addr) = @_;
		4123
		4124	$msg =~ s/\n//;
		4125
		4126	# limit the # of concurrent backtraces
		4127	if ($_log_backtrace < 2) {
		4128	++$_log_backtrace;
		4129	my $perl_bt = Carp::longmess $msg;
		4130	async {
		4131	$Coro::current->{desc} = "abt $msg";
		4132
		4133	my @bt = fork_call {
		4134	@addr = map { sprintf "%x", $_ } @addr;
		4135	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4136	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4137	or die "addr2line: $!";
		4138
		4139	my @funcs;
		4140	my @res = <$fh>;
		4141	chomp for @res;
		4142	while (@res) {
		4143	my ($func, $line) = splice @res, 0, 2, ();
		4144	push @funcs, "[$func] $line";
		4145	}
		4146
		4147	@funcs
		4148	};
		4149
		4150	LOG llevInfo, "[ABT] $perl_bt\n";
		4151	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4152	LOG llevInfo, "[ABT] $_\n" for @bt;
		4153	--$_log_backtrace;
		4154	};
		4155	} else {
		4156	LOG llevInfo, "[ABT] $msg\n";
		4157	LOG llevInfo, "[ABT] [suppressed]\n";
		4158	}
		4159	}
		4160
		4161	# load additional modules
		4162	require "cf/$_.pm" for @EXTRA_MODULES;
		4163	cf::_connect_to_perl_2;
		4164
		4165	END { cf::emergency_save }
2055		4166
2056	1	4167	1
2057		4168

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