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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.110 by root, Mon Jan 1 11:21:55 2007 UTC vs.
Revision 1.540 by root, Tue May 4 23:32:29 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);
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
		523	if (in_main) {
		524	my $time = AE::time;
		525
		526	# this is the main coro, too bad, we have to block
		527	# till the operation succeeds, freezing the server :/
		528
		529	#LOG llevError, Carp::longmess "sync job";#d#
		530
		531	my $freeze_guard = freeze_mainloop;
		532
202	my $busy = 1;	533	my $busy = 1;
203	my @res;	534	my @res;
204		535
205	my $coro = Coro::async {	536	(async {
		537	$Coro::current->desc ("sync job coro");
206	@res = eval { $job->() };	538	@res = eval { $job->() };
207	warn $@ if $@;	539	error $@ if $@;
208	undef $busy;	540	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {
212	# TODO: use suspend/resume instead
213	local $FREEZE = 1;
214	$coro->prio (Coro::PRIO_MAX);	541	})->prio (Coro::PRIO_MAX);
		542
215	while ($busy) {	543	while ($busy) {
		544	if (Coro::nready) {
216	Coro::cede_notself;	545	Coro::cede_notself;
217	Event::one_event unless Coro::nready;	546	} else {
		547	EV::loop EV::LOOP_ONESHOT;
218	}	548	}
		549	}
		550
		551	my $time = AE::time - $time;
		552
		553	$TICK_START += $time; # do not account sync jobs to server load
		554
		555	wantarray ? @res : $res[0]
219	} else {	556	} else {
220	$coro->join;	557	# we are in another coroutine, how wonderful, everything just works
		558
		559	$job->()
221	}	560	}
222
223	wantarray ? @res : $res[0]
224	}	561	}
225		562
226	=item $coro = cf::coro { BLOCK }	563	=item $coro = cf::async_ext { BLOCK }
227		564
228	Creates and returns a new coro. This coro is automcatially being canceled	565	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	566	extension calling this is being unloaded.
230		567
231	=cut	568	=cut
232		569
233	sub coro(&) {	570	sub async_ext(&) {
234	my $cb = shift;	571	my $cb = shift;
235		572
236	my $coro; $coro = async {	573	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		574
243	$coro->on_destroy (sub {	575	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	576	delete $EXT_CORO{$coro+0};
245	});	577	});
246	$EXT_CORO{$coro+0} = $coro;	578	$EXT_CORO{$coro+0} = $coro;
247		579
248	$coro	580	$coro
249	}	581	}
250		582
251	sub write_runtime {	583	=item fork_call { }, $args
252	my $runtime = cf::localdir . "/runtime";
253		584
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	585	Executes the given code block with the given arguments in a seperate
255	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.
256		589
257	my $value = $cf::RUNTIME;	590	=cut
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;
260		591
261	aio_fsync $fh	592	sub fork_call(&@) {
262	and return;	593	my ($cb, @args) = @_;
263		594
264	close $fh	595	# we seemingly have to make a local copy of the whole thing,
265	or return;	596	# otherwise perl prematurely frees the stuff :/
		597	# TODO: investigate and fix (likely this will be rather laborious)
266		598
267	aio_rename "$runtime~", $runtime	599	my @res = Coro::Util::fork_eval {
268	and return;	600	reset_signals;
		601	&$cb
		602	}, @args;
269		603
		604	wantarray ? @res : $res[-1]
		605	}
		606
		607	sub objinfo {
270	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 => $type });
271	}	783	}
272		784
273	=back	785	=back
274		786
275	=cut	787	=cut
276		788
277	#############################################################################	789	#############################################################################
278		790
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386
387	#############################################################################
388
389	=head2 ATTACHABLE OBJECTS	791	=head2 ATTACHABLE OBJECTS
390		792
391	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
392	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")
393	to it. All such attachable objects support the following methods.	795	to it. All such attachable objects support the following methods.
394		796
395	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>
396	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
397	crossfire+).	799	Deliantra).
398		800
399	=over 4	801	=over 4
400		802
401	=item $attachable->attach ($attachment, key => $value...)	803	=item $attachable->attach ($attachment, key => $value...)
402		804
…		…
446	=item cf::CLASS::attachment $name, ...	848	=item cf::CLASS::attachment $name, ...
447		849
448	Register an attachment by C<$name> through which attachable objects of the	850	Register an attachment by C<$name> through which attachable objects of the
449	given CLASS can refer to this attachment.	851	given CLASS can refer to this attachment.
450		852
451	Some classes such as crossfire maps and objects can specify attachments	853	Some classes such as deliantra maps and objects can specify attachments
452	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.
453		855
454	These calls expect any number of the following handler/hook descriptions:	856	These calls expect any number of the following handler/hook descriptions:
455		857
456	=over 4	858	=over 4
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	918	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	919	our @CB_MAP = ();
518		920
519	my %attachment;	921	my %attachment;
520		922
		923	sub cf::attachable::thawer_merge {
		924	# simply override everything except _meta
		925	local $_[0]{_meta};
		926	%{$_[0]} = %{$_[1]};
		927	}
		928
521	sub _attach_cb($$$$) {	929	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	930	my ($registry, $event, $prio, $cb) = @_;
523		931
524	use sort 'stable';	932	use sort 'stable';
525		933
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	967	$registry = $CB_TYPE[$object_type] ||= [];
560		968
561	} elsif ($type eq "subtype") {	969	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	970	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	971	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	972	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		973
566	} elsif ($type eq "package") {	974	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	975	my $pkg = shift @arg;
568		976
569	while (my ($name, $id) = each %cb_id) {	977	while (my ($name, $id) = each %cb_id) {
…		…
574		982
575	} elsif (exists $cb_id{$type}) {	983	} elsif (exists $cb_id{$type}) {
576	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	984	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
577		985
578	} elsif (ref $type) {	986	} elsif (ref $type) {
579	warn "attaching objects not supported, ignoring.\n";	987	error "attaching objects not supported, ignoring.\n";
580		988
581	} else {	989	} else {
582	shift @arg;	990	shift @arg;
583	warn "attach argument '$type' not supported, ignoring.\n";	991	error "attach argument '$type' not supported, ignoring.\n";
584	}	992	}
585	}	993	}
586	}	994	}
587		995
588	sub _object_attach {	996	sub _object_attach {
…		…
598	_attach $registry, $klass, @attach;	1006	_attach $registry, $klass, @attach;
599	}	1007	}
600		1008
601	$obj->{$name} = \%arg;	1009	$obj->{$name} = \%arg;
602	} else {	1010	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	1011	info "object uses attachment '$name' which is not available, postponing.\n";
604	}	1012	}
605		1013
606	$obj->{_attachment}{$name} = undef;	1014	$obj->{_attachment}{$name} = undef;
607	}	1015	}
608		1016
…		…
610	if (ref $_[0]) {	1018	if (ref $_[0]) {
611	_object_attach @_;	1019	_object_attach @_;
612	} else {	1020	} else {
613	_attach shift->_attach_registry, @_;	1021	_attach shift->_attach_registry, @_;
614	}	1022	}
		1023	_recalc_want;
615	};	1024	};
616		1025
617	# all those should be optimised	1026	# all those should be optimised
618	sub cf::attachable::detach {	1027	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	1028	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	1031	delete $obj->{_attachment}{$name};
623	reattach ($obj);	1032	reattach ($obj);
624	} else {	1033	} else {
625	Carp::croak "cannot, currently, detach class attachments";	1034	Carp::croak "cannot, currently, detach class attachments";
626	}	1035	}
		1036	_recalc_want;
627	};	1037	};
628		1038
629	sub cf::attachable::attached {	1039	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	1040	my ($obj, $name) = @_;
631		1041
…		…
646	";	1056	";
647	die if $@;	1057	die if $@;
648	}	1058	}
649		1059
650	our $override;	1060	our $override;
651	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?
652		1062
653	sub override {	1063	sub override {
654	$override = 1;	1064	$override = 1;
655	@invoke_results = ();	1065	@INVOKE_RESULTS = (@_);
656	}	1066	}
657		1067
658	sub do_invoke {	1068	sub do_invoke {
659	my $event = shift;	1069	my $event = shift;
660	my $callbacks = shift;	1070	my $callbacks = shift;
661		1071
662	@invoke_results = ();	1072	@INVOKE_RESULTS = ();
663		1073
664	local $override;	1074	local $override;
665		1075
666	for (@$callbacks) {	1076	for (@$callbacks) {
667	eval { &{$_->[1]} };	1077	eval { &{$_->[1]} };
668		1078
669	if ($@) {	1079	if ($@) {
670	warn "$@";
671	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1080	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
672	override;	1081	override;
673	}	1082	}
674		1083
675	return 1 if $override;	1084	return 1 if $override;
676	}	1085	}
677		1086
678	0	1087	0
679	}	1088	}
680		1089
681	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1090	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
682		1091
683	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1092	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
684		1093
685	Generate an object-specific event with the given arguments.	1094	Generate an object-specific event with the given arguments.
686		1095
687	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
688	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
689	results (if you must, access C<@cf::invoke_results> directly).	1098	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
690		1099
691	=back	1100	=back
692		1101
693	=cut	1102	=cut
694		1103
695	#############################################################################	1104	#############################################################################
696	# 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	}
697		1148
698	sub reattach {	1149	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	1150	# basically do the same as instantiate, without calling instantiate
700	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
701		1155
702	my $registry = $obj->registry;	1156	my $registry = $obj->registry;
703		1157
704	@$registry = ();	1158	@$registry = ();
705		1159
…		…
710	for (@$attach) {	1164	for (@$attach) {
711	my ($klass, @attach) = @$_;	1165	my ($klass, @attach) = @$_;
712	_attach $registry, $klass, @attach;	1166	_attach $registry, $klass, @attach;
713	}	1167	}
714	} else {	1168	} else {
715	warn "object uses attachment '$name' that is not available, postponing.\n";	1169	info "object uses attachment '$name' that is not available, postponing.\n";
716	}	1170	}
717	}	1171	}
718	}	1172	}
719		1173
720	cf::attachable->attach (	1174	cf::attachable->attach (
721	prio => -1000000,	1175	prio => -1000000,
722	on_instantiate => sub {	1176	on_instantiate => sub {
723	my ($obj, $data) = @_;	1177	my ($obj, $data) = @_;
724		1178
725	$data = from_json $data;	1179	$data = decode_json $data;
726		1180
727	for (@$data) {	1181	for (@$data) {
728	my ($name, $args) = @$_;	1182	my ($name, $args) = @$_;
729		1183
730	$obj->attach ($name, %{$args || {} });	1184	$obj->attach ($name, %{$args || {} });
…		…
746	sub object_freezer_save {	1200	sub object_freezer_save {
747	my ($filename, $rdata, $objs) = @_;	1201	my ($filename, $rdata, $objs) = @_;
748		1202
749	sync_job {	1203	sync_job {
750	if (length $$rdata) {	1204	if (length $$rdata) {
		1205	utf8::decode (my $decname = $filename);
751	warn sprintf "saving %s (%d,%d)\n",	1206	trace sprintf "saving %s (%d,%d)\n",
752	$filename, length $$rdata, scalar @$objs;	1207	$decname, length $$rdata, scalar @$objs
		1208	if $VERBOSE_IO;
753		1209
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1210	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1211	aio_chmod $fh, SAVE_MODE;
756	aio_write $fh, 0, (length $$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;
757	aio_fsync $fh;	1215	aio_fsync $fh;
		1216	}
758	close $fh;	1217	aio_close $fh;
759		1218
760	if (@$objs) {	1219	if (@$objs) {
761	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) {
762	chmod SAVE_MODE, $fh;	1221	aio_chmod $fh, SAVE_MODE;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1222	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
764	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;
765	aio_fsync $fh;	1226	aio_fsync $fh;
		1227	}
766	close $fh;	1228	aio_close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1229	aio_rename "$filename.pst~", "$filename.pst";
768	}	1230	}
769	} else {	1231	} else {
770	aio_unlink "$filename.pst";	1232	aio_unlink "$filename.pst";
771	}	1233	}
772		1234
773	aio_rename "$filename~", $filename;	1235	aio_rename "$filename~", $filename;
		1236
		1237	$filename =~ s%/[^/]+$%%;
		1238	aio_pathsync $filename if $cf::USE_FSYNC;
774	} else {	1239	} else {
775	warn "FATAL: $filename~: $!\n";	1240	error "unable to save objects: $filename~: $!\n";
776	}	1241	}
777	} else {	1242	} else {
778	aio_unlink $filename;	1243	aio_unlink $filename;
779	aio_unlink "$filename.pst";	1244	aio_unlink "$filename.pst";
780	}	1245	}
781	}	1246	};
782	}	1247	}
783		1248
784	sub object_freezer_as_string {	1249	sub object_freezer_as_string {
785	my ($rdata, $objs) = @_;	1250	my ($rdata, $objs) = @_;
786		1251
…		…
798	or return;	1263	or return;
799		1264
800	unless (aio_stat "$filename.pst") {	1265	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	1266	(aio_load "$filename.pst", $av) >= 0
802	or return;	1267	or return;
		1268
803	$av = eval { (Storable::thaw <$av>)->{objs} };	1269	my $st = eval { Coro::Storable::thaw $av };
		1270	$av = $st->{objs};
804	}	1271	}
805		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
806	return ($data, $av);	1278	($data, $av)
807	}	1279	}
		1280
		1281	=head2 COMMAND CALLBACKS
		1282
		1283	=over 4
		1284
		1285	=cut
808		1286
809	#############################################################################	1287	#############################################################################
810	# command handling &c	1288	# command handling &c
811		1289
812	=item cf::register_command $name => \&callback($ob,$args);	1290	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1303	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1304	}
827		1305
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1306	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1307
830	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.
831		1313
832	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
833	called.	1315	called.
834		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
835	=cut	1328	=cut
836		1329
837	sub register_extcmd {	1330	sub register_extcmd {
838	my ($name, $cb) = @_;	1331	my ($name, $cb) = @_;
839		1332
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	1333	$EXTCMD{$name} = $cb;
844	}	1334	}
		1335
		1336	sub register_exticmd {
		1337	my ($name, $cb) = @_;
		1338
		1339	$EXTICMD{$name} = $cb;
		1340	}
		1341
		1342	use File::Glob ();
845		1343
846	cf::player->attach (	1344	cf::player->attach (
847	on_command => sub {	1345	on_unknown_command => sub {
848	my ($pl, $name, $params) = @_;	1346	my ($pl, $name, $params) = @_;
849		1347
850	my $cb = $COMMAND{$name}	1348	my $cb = $COMMAND{$name}
851	or return;	1349	or return;
852		1350
…		…
857	cf::override;	1355	cf::override;
858	},	1356	},
859	on_extcmd => sub {	1357	on_extcmd => sub {
860	my ($pl, $buf) = @_;	1358	my ($pl, $buf) = @_;
861		1359
862	my $msg = eval { from_json $buf };	1360	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
863		1361
864	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
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1370	if (my $cb = $EXTCMD{$type}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	1371	@reply = $cb->($pl, @payload);
867	$pl->ext_reply ($msg->{msgid}, %reply);
868	}
869	}	1372	}
		1373
		1374	$pl->ext_reply ($reply, @reply)
		1375	if $reply;
		1376
870	} else {	1377	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1378	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
872	}	1379	}
873		1380
874	cf::override;	1381	cf::override;
875	},	1382	},
876	);	1383	);
877		1384
878	sub register {	1385	# "readahead" all extensions
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	1386	sub cache_extensions {
885	my ($path) = @_;	1387	my $grp = IO::AIO::aio_group;
886		1388
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1389	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
888	my $base = $1;	1390	for (grep /\.ext$/, @{$_[0]}) {
889	my $pkg = $1;	1391	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
890	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";
892
893	warn "loading '$path' into '$pkg'\n";
894
895	open my $fh, "<:utf8", $path
896	or die "$path: $!";
897
898	my $source =
899	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })
902	. "\n};\n1";
903
904	eval $source
905	or die $@ ? "$path: $@\n"
906	: "extension disabled.\n";
907
908	push @exts, $pkg;
909	$ext_pkg{$base} = $pkg;
910
911	# no strict 'refs';
912	# @{"$pkg\::ISA"} = ext::;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }
927
928	# remove commands
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}	1392	}
937	}	1393	};
938		1394
939	# remove extcmds	1395	$grp
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}	1396	}
953		1397
954	sub load_extensions {	1398	sub load_extensions {
		1399	info "loading extensions...";
		1400
		1401	cf::sync_job {
		1402	my %todo;
		1403
955	for my $ext (<$LIBDIR/*.ext>) {	1404	for my $path (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	1405	next unless -r $path;
957	eval {	1406
958	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	undef $@; # work around perl 5.10.0 utf-8 caching bug
		1457
		1458	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1459	if exists $v->{meta}{mandatory};
		1460
		1461	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1462	delete $todo{$k};
		1463	} else {
		1464	$done{$k} = delete $todo{$k};
		1465	push @EXTS, $v->{pkg};
		1466	$progress = 1;
		1467
		1468	info "$v->{base}: extension inactive.\n"
		1469	unless $active;
		1470	}
959	1	1471	}
960	} or warn "$ext not loaded: $@";	1472
		1473	unless ($progress) {
		1474	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1475
		1476	while (my ($k, $v) = each %todo) {
		1477	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1478	if exists $v->{meta}{mandatory};
		1479	}
		1480	}
		1481	}
961	}	1482	};
962	}	1483	}
963		1484
964	#############################################################################	1485	#############################################################################
965	# load/save/clean perl data associated with a map
966		1486
967	*cf::mapsupport::on_clean = sub {	1487	=back
		1488
		1489	=head2 CORE EXTENSIONS
		1490
		1491	Functions and methods that extend core deliantra objects.
		1492
		1493	=cut
		1494
		1495	package cf::player;
		1496
		1497	use Coro::AIO;
		1498
		1499	=head3 cf::player
		1500
		1501	=over 4
		1502
		1503	=item cf::player::num_playing
		1504
		1505	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1506
		1507	=cut
		1508
		1509	sub num_playing {
		1510	scalar grep
		1511	$_->ob->map
		1512	&& !$_->hidden
		1513	&& !$_->ob->flag (cf::FLAG_WIZ),
		1514	cf::player::list
		1515	}
		1516
		1517	=item cf::player::find $login
		1518
		1519	Returns the given player object, loading it if necessary (might block).
		1520
		1521	=cut
		1522
		1523	sub playerdir($) {
		1524	"$PLAYERDIR/"
		1525	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1526	}
		1527
		1528	sub path($) {
		1529	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1530
		1531	(playerdir $login) . "/playerdata"
		1532	}
		1533
		1534	sub find_active($) {
		1535	$cf::PLAYER{$_[0]}
		1536	and $cf::PLAYER{$_[0]}->active
		1537	and $cf::PLAYER{$_[0]}
		1538	}
		1539
		1540	sub exists($) {
968	my ($map) = @_;	1541	my ($login) = @_;
969		1542
970	my $path = $map->tmpname;	1543	$cf::PLAYER{$login}
971	defined $path or return;	1544	or !aio_stat path $login
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}	1545	}
984		1546
985	# TODO: compatibility cruft, remove when no longer needed	1547	sub find($) {
		1548	return $cf::PLAYER{$_[0]} || do {
		1549	my $login = $_[0];
		1550
		1551	my $guard = cf::lock_acquire "user_find:$login";
		1552
		1553	$cf::PLAYER{$_[0]} || do {
		1554	# rename old playerfiles to new ones
		1555	#TODO: remove when no longer required
		1556	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1557	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1558	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1559	aio_unlink +(playerdir $login) . "/$login.pl";
		1560
		1561	my $f = new_from_file cf::object::thawer path $login
		1562	or return;
		1563
		1564	my $pl = cf::player::load_pl $f
		1565	or return;
		1566
		1567	local $cf::PLAYER_LOADING{$login} = $pl;
		1568	$f->resolve_delayed_derefs;
		1569	$cf::PLAYER{$login} = $pl
		1570	}
		1571	}
		1572	}
		1573
986	cf::player->attach (	1574	cf::player->attach (
987	on_load => sub {	1575	on_load => sub {
988	my ($pl, $path) = @_;	1576	my ($pl, $path) = @_;
989		1577
990	for my $o (all_objects $pl->ob) {	1578	# restore slots saved in save, below
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1579	my $slots = delete $pl->{_slots};
992	$o->set_ob_key_value ("_perl_data");
993		1580
994	%$o = %{ Storable::thaw pack "H*", $value };	1581	$pl->ob->current_weapon ($slots->[0]);
995	}	1582	$pl->combat_ob ($slots->[1]);
996	}	1583	$pl->ranged_ob ($slots->[2]);
997	},	1584	},
998	);	1585	);
999		1586
1000	#############################################################################	1587	sub save($) {
		1588	my ($pl) = @_;
1001		1589
1002	=head2 CORE EXTENSIONS	1590	return if $pl->{deny_save};
1003		1591
1004	Functions and methods that extend core crossfire objects.	1592	my $path = path $pl;
		1593	my $guard = cf::lock_acquire "user_save:$path";
1005		1594
1006	=head3 cf::player	1595	return if $pl->{deny_save};
		1596
		1597	aio_mkdir playerdir $pl, 0770;
		1598	$pl->{last_save} = $cf::RUNTIME;
		1599
		1600	cf::get_slot 0.01;
		1601
		1602	# save slots, to be restored later
		1603	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1604
		1605	$pl->save_pl ($path);
		1606	cf::cede_to_tick;
		1607	}
		1608
		1609	sub new($) {
		1610	my ($login) = @_;
		1611
		1612	my $self = create;
		1613
		1614	$self->ob->name ($login);
		1615	$self->{deny_save} = 1;
		1616
		1617	$cf::PLAYER{$login} = $self;
		1618
		1619	$self
		1620	}
		1621
		1622	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1623
		1624	=cut
		1625
		1626	sub send_msg {
		1627	my $ns = shift->ns
		1628	or return;
		1629	$ns->send_msg (@_);
		1630	}
		1631
		1632	=item $pl->quit_character
		1633
		1634	Nukes the player without looking back. If logged in, the connection will
		1635	be destroyed. May block for a long time.
		1636
		1637	=cut
		1638
		1639	sub quit_character {
		1640	my ($pl) = @_;
		1641
		1642	my $name = $pl->ob->name;
		1643
		1644	$pl->{deny_save} = 1;
		1645	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1646
		1647	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1648	$pl->deactivate;
		1649	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1650	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1651	$pl->ns->destroy if $pl->ns;
		1652
		1653	my $path = playerdir $pl;
		1654	my $temp = "$path~$cf::RUNTIME~deleting~";
		1655	aio_rename $path, $temp;
		1656	delete $cf::PLAYER{$pl->ob->name};
		1657	$pl->destroy;
		1658
		1659	my $prefix = qr<^~\Q$name\E/>;
		1660
		1661	# nuke player maps
		1662	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1663
		1664	IO::AIO::aio_rmtree $temp;
		1665	}
		1666
		1667	=item $pl->kick
		1668
		1669	Kicks a player out of the game. This destroys the connection.
		1670
		1671	=cut
		1672
		1673	sub kick {
		1674	my ($pl, $kicker) = @_;
		1675
		1676	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1677	$pl->killer ("kicked");
		1678	$pl->ns->destroy;
		1679	}
		1680
		1681	=item cf::player::list_logins
		1682
		1683	Returns am arrayref of all valid playernames in the system, can take a
		1684	while and may block, so not sync_job-capable, ever.
		1685
		1686	=cut
		1687
		1688	sub list_logins {
		1689	my $dirs = aio_readdir $PLAYERDIR
		1690	or return [];
		1691
		1692	my @logins;
		1693
		1694	for my $login (@$dirs) {
		1695	my $path = path $login;
		1696
		1697	# a .pst is a dead give-away for a valid player
		1698	# if no pst file found, open and chekc for blocked users
		1699	if (aio_stat "$path.pst") {
		1700	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1701	aio_read $fh, 0, 512, my $buf, 0 or next;
		1702	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1703	}
		1704
		1705	utf8::decode $login;
		1706	push @logins, $login;
		1707	}
		1708
		1709	\@logins
		1710	}
		1711
		1712	=item $player->maps
		1713
		1714	=item cf::player::maps $login
		1715
		1716	Returns an arrayref of map paths that are private for this
		1717	player. May block.
		1718
		1719	=cut
		1720
		1721	sub maps($) {
		1722	my ($pl) = @_;
		1723
		1724	$pl = ref $pl ? $pl->ob->name : $pl;
		1725
		1726	my $files = aio_readdir playerdir $pl
		1727	or return;
		1728
		1729	my @paths;
		1730
		1731	for (@$files) {
		1732	utf8::decode $_;
		1733	next if /\.(?:pl|pst)$/;
		1734	next unless /^$PATH_SEP/o;
		1735
		1736	push @paths, cf::map::normalise "~$pl/$_";
		1737	}
		1738
		1739	\@paths
		1740	}
		1741
		1742	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1743
		1744	Expand deliantra pod fragments into protocol xml.
		1745
		1746	=item $player->ext_reply ($msgid, @msg)
		1747
		1748	Sends an ext reply to the player.
		1749
		1750	=cut
		1751
		1752	sub ext_reply($$@) {
		1753	my ($self, $id, @msg) = @_;
		1754
		1755	$self->ns->ext_reply ($id, @msg)
		1756	}
		1757
		1758	=item $player->ext_msg ($type, @msg)
		1759
		1760	Sends an ext event to the client.
		1761
		1762	=cut
		1763
		1764	sub ext_msg($$@) {
		1765	my ($self, $type, @msg) = @_;
		1766
		1767	$self->ns->ext_msg ($type, @msg);
		1768	}
		1769
		1770	=head3 cf::region
1007		1771
1008	=over 4	1772	=over 4
1009		1773
1010	=item cf::player::exists $login
1011
1012	Returns true when the given account exists.
1013
1014	=cut	1774	=cut
1015		1775
1016	sub cf::player::exists($) {	1776	package cf::region;
1017	cf::player::find $_[0]
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1019	}
1020		1777
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1778	=item cf::region::find_by_path $path
1022		1779
1023	Sends an ext reply to the player.	1780	Tries to decuce the likely region for a map knowing only its path.
1024		1781
1025	=cut	1782	=cut
1026		1783
1027	sub cf::player::ext_reply($$$%) {	1784	sub find_by_path($) {
1028	my ($self, $id, %msg) = @_;	1785	my ($path) = @_;
1029		1786
1030	$msg{msgid} = $id;	1787	$path =~ s/^~[^\/]*//; # skip ~login
1031		1788
1032	$self->send ("ext " . to_json \%msg);	1789	my ($match, $specificity);
		1790
		1791	for my $region (list) {
		1792	if ($region->{match} && $path =~ $region->{match}) {
		1793	($match, $specificity) = ($region, $region->specificity)
		1794	if $region->specificity > $specificity;
		1795	}
		1796	}
		1797
		1798	$match
1033	}	1799	}
1034		1800
1035	=back	1801	=back
1036
1037		1802
1038	=head3 cf::map	1803	=head3 cf::map
1039		1804
1040	=over 4	1805	=over 4
1041		1806
…		…
1044	package cf::map;	1809	package cf::map;
1045		1810
1046	use Fcntl;	1811	use Fcntl;
1047	use Coro::AIO;	1812	use Coro::AIO;
1048		1813
		1814	use overload
		1815	'""' => \&as_string,
		1816	fallback => 1;
		1817
1049	our $MAX_RESET = 7200;	1818	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1819	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1820
1054	sub generate_random_map {	1821	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1822	my ($self, $rmp) = @_;
		1823
		1824	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1056		1825
1057	# mit "rum" bekleckern, nicht	1826	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1827	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1828	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1829	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1830	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1831	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1832	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1833	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1834	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1835	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1836	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1837	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1838	(cf::region::find $rmp->{region}), $rmp->{custom}
		1839	)
1071	}	1840	}
1072		1841
1073	# and all this just because we cannot iterate over	1842	=item cf::map->register ($regex, $prio)
1074	# all maps in C++...
1075	sub change_all_map_light {
1076	my ($change) = @_;
1077		1843
1078	$_->change_map_light ($change) for values %cf::MAP;	1844	Register a handler for the map path matching the given regex at the
1079	}	1845	givne priority (higher is better, built-in handlers have priority 0, the
		1846	default).
1080		1847
1081	sub try_load_header($) {	1848	=cut
		1849
		1850	sub register {
		1851	my (undef, $regex, $prio) = @_;
		1852	my $pkg = caller;
		1853
		1854	push @{"$pkg\::ISA"}, __PACKAGE__;
		1855
		1856	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1857	}
		1858
		1859	# also paths starting with '/'
		1860	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1861
		1862	sub thawer_merge {
		1863	my ($self, $merge) = @_;
		1864
		1865	# we have to keep some variables in memory intact
		1866	local $self->{path};
		1867	local $self->{load_path};
		1868
		1869	$self->SUPER::thawer_merge ($merge);
		1870	}
		1871
		1872	sub normalise {
1082	my ($path) = @_;	1873	my ($path, $base) = @_;
		1874
		1875	$path = "$path"; # make sure its a string
		1876
		1877	$path =~ s/\.map$//;
		1878
		1879	# map plan:
		1880	#
		1881	# /! non-realised random map exit (special hack!)
		1882	# {... are special paths that are not being touched
		1883	# ?xxx/... are special absolute paths
		1884	# ?random/... random maps
		1885	# /... normal maps
		1886	# ~user/... per-player map of a specific user
		1887
		1888	$path =~ s/$PATH_SEP/\//go;
		1889
		1890	# treat it as relative path if it starts with
		1891	# something that looks reasonable
		1892	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1893	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1894
		1895	$base =~ s{[^/]+/?$}{};
		1896	$path = "$base/$path";
		1897	}
		1898
		1899	for ($path) {
		1900	redo if s{//}{/};
		1901	redo if s{/\.?/}{/};
		1902	redo if s{/[^/]+/\.\./}{/};
		1903	}
		1904
		1905	$path
		1906	}
		1907
		1908	sub new_from_path {
		1909	my (undef, $path, $base) = @_;
		1910
		1911	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1912
		1913	$path = normalise $path, $base;
		1914
		1915	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1916	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1917	my $self = bless cf::map::new, $pkg;
		1918	$self->{path} = $path; $self->path ($path);
		1919	$self->init; # pass $1 etc.
		1920	return $self;
		1921	}
		1922	}
		1923
		1924	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1925	()
		1926	}
		1927
		1928	sub init {
		1929	my ($self) = @_;
		1930
		1931	$self
		1932	}
		1933
		1934	sub as_string {
		1935	my ($self) = @_;
		1936
		1937	"$self->{path}"
		1938	}
		1939
		1940	# the displayed name, this is a one way mapping
		1941	sub visible_name {
		1942	&as_string
		1943	}
		1944
		1945	# the original (read-only) location
		1946	sub load_path {
		1947	my ($self) = @_;
		1948
		1949	"$MAPDIR/$self->{path}.map"
		1950	}
		1951
		1952	# the temporary/swap location
		1953	sub save_path {
		1954	my ($self) = @_;
		1955
		1956	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1957	"$TMPDIR/$path.map"
		1958	}
		1959
		1960	# the unique path, undef == no special unique path
		1961	sub uniq_path {
		1962	my ($self) = @_;
		1963
		1964	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1965	"$UNIQUEDIR/$path"
		1966	}
		1967
		1968	sub decay_objects {
		1969	my ($self) = @_;
		1970
		1971	return if $self->{deny_reset};
		1972
		1973	$self->do_decay_objects;
		1974	}
		1975
		1976	sub unlink_save {
		1977	my ($self) = @_;
		1978
		1979	utf8::encode (my $save = $self->save_path);
		1980	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1981	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1982	}
		1983
		1984	sub load_header_from($) {
		1985	my ($self, $path) = @_;
1083		1986
1084	utf8::encode $path;	1987	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1988	my $f = new_from_file cf::object::thawer $path
1086	or return;	1989	or return;
1087		1990
1088	my $map = cf::map::new	1991	$self->_load_header ($f)
1089	or return;	1992	or return;
1090		1993
1091	$map->load_header ($path)	1994	local $MAP_LOADING{$self->{path}} = $self;
		1995	$f->resolve_delayed_derefs;
		1996
		1997	$self->{load_path} = $path;
		1998
		1999	1
		2000	}
		2001
		2002	sub load_header_orig {
		2003	my ($self) = @_;
		2004
		2005	$self->load_header_from ($self->load_path)
		2006	}
		2007
		2008	sub load_header_temp {
		2009	my ($self) = @_;
		2010
		2011	$self->load_header_from ($self->save_path)
		2012	}
		2013
		2014	sub prepare_temp {
		2015	my ($self) = @_;
		2016
		2017	$self->last_access ((delete $self->{last_access})
		2018	|| $cf::RUNTIME); #d#
		2019	# safety
		2020	$self->{instantiate_time} = $cf::RUNTIME
		2021	if $self->{instantiate_time} > $cf::RUNTIME;
		2022	}
		2023
		2024	sub prepare_orig {
		2025	my ($self) = @_;
		2026
		2027	$self->{load_original} = 1;
		2028	$self->{instantiate_time} = $cf::RUNTIME;
		2029	$self->last_access ($cf::RUNTIME);
		2030	$self->instantiate;
		2031	}
		2032
		2033	sub load_header {
		2034	my ($self) = @_;
		2035
		2036	if ($self->load_header_temp) {
		2037	$self->prepare_temp;
		2038	} else {
		2039	$self->load_header_orig
1092	or return;	2040	or return;
		2041	$self->prepare_orig;
		2042	}
1093		2043
1094	$map->{load_path} = $path;	2044	$self->{deny_reset} = 1
1095	use Data::Dumper; warn Dumper $map;#d#	2045	if $self->no_reset;
1096		2046
1097	$map	2047	$self->default_region (cf::region::find_by_path $self->{path})
1098	}	2048	unless $self->default_region;
1099		2049
		2050	1
		2051	}
		2052
		2053	sub find;
1100	sub find_map {	2054	sub find {
1101	my ($path, $origin) = @_;	2055	my ($path, $origin) = @_;
1102		2056
1103	#warn "find_map<$path,$origin>\n";#d#	2057	$path = normalise $path, $origin && $origin->path;
1104		2058
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	2059	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1106	my $key = $path->as_string;	2060	my $guard2 = cf::lock_acquire "map_find:$path";
1107		2061
1108	$cf::MAP{$key} || do {	2062	$cf::MAP{$path} || do {
1109	# do it the slow way	2063	my $map = new_from_path cf::map $path
1110	my $map = try_load_header $path->save_path;
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	2064	or return;
1124		2065
1125	$map->{instantiate_time} = $cf::RUNTIME;
1126	$map->instantiate;
1127
1128	# per-player maps become, after loading, normal maps
1129	$map->per_player (0) if $path->{user_rel};
1130	}
1131
1132	$map->path ($key);
1133	$map->{path} = $path;
1134	$map->last_access ($cf::RUNTIME);	2066	$map->{last_save} = $cf::RUNTIME;
1135		2067
1136	$map->reset if $map->should_reset;	2068	$map->load_header
		2069	or return;
1137		2070
		2071	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2072	# doing this can freeze the server in a sync job, obviously
		2073	#$cf::WAIT_FOR_TICK->wait;
		2074	undef $guard2;
		2075	undef $guard1;
		2076	$map->reset;
		2077	return find $path;
		2078	}
		2079
1138	$cf::MAP{$key} = $map	2080	$cf::MAP{$path} = $map
1139	}	2081	}
1140	}	2082	}
		2083
		2084	sub pre_load { }
		2085	#sub post_load { } # XS
1141		2086
1142	sub load {	2087	sub load {
1143	my ($self) = @_;	2088	my ($self) = @_;
1144		2089
1145	return if $self->in_memory != cf::MAP_SWAPPED;	2090	local $self->{deny_reset} = 1; # loading can take a long time
1146
1147	$self->in_memory (cf::MAP_LOADING);
1148		2091
1149	my $path = $self->{path};	2092	my $path = $self->{path};
1150		2093
		2094	{
		2095	my $guard = cf::lock_acquire "map_data:$path";
		2096
		2097	return unless $self->valid;
		2098	return unless $self->in_memory == cf::MAP_SWAPPED;
		2099
		2100	$self->in_memory (cf::MAP_LOADING);
		2101
1151	$self->alloc;	2102	$self->alloc;
1152	$self->load_objects ($self->{load_path}, 1)	2103
		2104	$self->pre_load;
		2105	cf::cede_to_tick;
		2106
		2107	my $f = new_from_file cf::object::thawer $self->{load_path};
		2108	$f->skip_block;
		2109	$self->_load_objects ($f)
1153	or return;	2110	or return;
1154		2111
		2112	$self->post_load_original
		2113	if delete $self->{load_original};
		2114
1155	if (my $uniq = $path->uniq_path) {	2115	if (my $uniq = $self->uniq_path) {
1156	utf8::encode $uniq;	2116	utf8::encode $uniq;
1157	if (aio_open $uniq, O_RDONLY, 0) {	2117	unless (aio_stat $uniq) {
		2118	if (my $f = new_from_file cf::object::thawer $uniq) {
1158	$self->clear_unique_items;	2119	$self->clear_unique_items;
1159	$self->load_objects ($uniq, 0);	2120	$self->_load_objects ($f);
		2121	$f->resolve_delayed_derefs;
		2122	}
1160	}	2123	}
1161	}	2124	}
1162		2125
		2126	$f->resolve_delayed_derefs;
		2127
		2128	cf::cede_to_tick;
1163	# now do the right thing for maps	2129	# now do the right thing for maps
1164	$self->link_multipart_objects;	2130	$self->link_multipart_objects;
1165
1166	if ($self->{path}->is_style_map) {
1167	$self->{deny_save} = 1;
1168	$self->{deny_reset} = 1;
1169	} else {
1170	$self->fix_auto_apply;
1171	$self->decay_objects;
1172	$self->update_buttons;
1173	$self->set_darkness_map;
1174	$self->difficulty ($self->estimate_difficulty)	2131	$self->difficulty ($self->estimate_difficulty)
1175	unless $self->difficulty;	2132	unless $self->difficulty;
		2133	cf::cede_to_tick;
		2134
		2135	unless ($self->{deny_activate}) {
		2136	$self->decay_objects;
		2137	$self->fix_auto_apply;
		2138	$self->update_buttons;
		2139	cf::cede_to_tick;
1176	$self->activate;	2140	$self->activate;
1177	}	2141	}
1178		2142
		2143	$self->{last_save} = $cf::RUNTIME;
		2144	$self->last_access ($cf::RUNTIME);
		2145
1179	$self->in_memory (cf::MAP_IN_MEMORY);	2146	$self->in_memory (cf::MAP_ACTIVE);
1180	}	2147	}
1181		2148
1182	sub load_map_sync {	2149	$self->post_load;
		2150	}
		2151
		2152	# customize the map for a given player, i.e.
		2153	# return the _real_ map. used by e.g. per-player
		2154	# maps to change the path to ~playername/mappath
		2155	sub customise_for {
		2156	my ($self, $ob) = @_;
		2157
		2158	return find "~" . $ob->name . "/" . $self->{path}
		2159	if $self->per_player;
		2160
		2161	# return find "?party/" . $ob->name . "/" . $self->{path}
		2162	# if $self->per_party;
		2163
		2164	$self
		2165	}
		2166
		2167	# find and load all maps in the 3x3 area around a map
		2168	sub load_neighbours {
		2169	my ($map) = @_;
		2170
		2171	my @neigh; # diagonal neighbours
		2172
		2173	for (0 .. 3) {
		2174	my $neigh = $map->tile_path ($_)
		2175	or next;
		2176	$neigh = find $neigh, $map
		2177	or next;
		2178	$neigh->load;
		2179
		2180	# now find the diagonal neighbours
		2181	push @neigh,
		2182	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2183	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2184	}
		2185
		2186	for (grep defined $_->[0], @neigh) {
		2187	my ($path, $origin) = @$_;
		2188	my $neigh = find $path, $origin
		2189	or next;
		2190	$neigh->load;
		2191	}
		2192	}
		2193
		2194	sub find_sync {
1183	my ($path, $origin) = @_;	2195	my ($path, $origin) = @_;
1184		2196
1185	#warn "load_map_sync<$path, $origin>\n";#d#	2197	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2198	if $Coro::current == $Coro::main;
1186		2199
1187	cf::sync_job {	2200	find $path, $origin
1188	my $map = cf::map::find_map $path, $origin	2201	}
1189	or return;	2202
		2203	sub do_load_sync {
		2204	my ($map) = @_;
		2205
		2206	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2207	if $Coro::current == $Coro::main;
		2208
1190	$map->load;	2209	$map->load;
1191	$map	2210	}
		2211
		2212	our %MAP_PREFETCH;
		2213	our $MAP_PREFETCHER = undef;
		2214
		2215	sub find_async {
		2216	my ($path, $origin, $load) = @_;
		2217
		2218	$path = normalise $path, $origin && $origin->{path};
		2219
		2220	if (my $map = $cf::MAP{$path}) {
		2221	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2222	}
		2223
		2224	$MAP_PREFETCH{$path} |= $load;
		2225
		2226	$MAP_PREFETCHER ||= cf::async {
		2227	$Coro::current->{desc} = "map prefetcher";
		2228
		2229	while (%MAP_PREFETCH) {
		2230	while (my ($k, $v) = each %MAP_PREFETCH) {
		2231	if (my $map = find $k) {
		2232	$map->load if $v;
		2233	}
		2234
		2235	delete $MAP_PREFETCH{$k};
		2236	}
		2237	}
		2238	undef $MAP_PREFETCHER;
		2239	};
		2240	$MAP_PREFETCHER->prio (6);
		2241
		2242	()
		2243	}
		2244
		2245	# common code, used by both ->save and ->swapout
		2246	sub _save {
		2247	my ($self) = @_;
		2248
		2249	$self->{last_save} = $cf::RUNTIME;
		2250
		2251	return unless $self->dirty;
		2252
		2253	my $save = $self->save_path; utf8::encode $save;
		2254	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2255
		2256	$self->{load_path} = $save;
		2257
		2258	return if $self->{deny_save};
		2259
		2260	local $self->{last_access} = $self->last_access;#d#
		2261
		2262	cf::async {
		2263	$Coro::current->{desc} = "map player save";
		2264	$_->contr->save for $self->players;
		2265	};
		2266
		2267	cf::get_slot 0.02;
		2268
		2269	if ($uniq) {
		2270	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2271	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2272	} else {
		2273	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1192	}	2274	}
1193	}	2275	}
1194		2276
1195	sub save {	2277	sub save {
1196	my ($self) = @_;	2278	my ($self) = @_;
1197		2279
1198	my $save = $self->{path}->save_path; utf8::encode $save;	2280	my $lock = cf::lock_acquire "map_data:$self->{path}";
1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1200		2281
1201	$self->{last_save} = $cf::RUNTIME;	2282	$self->_save;
1202
1203	return unless $self->dirty;
1204
1205	$self->{load_path} = $save;
1206
1207	return if $self->{deny_save};
1208
1209	warn "saving map ", $self->path;
1210
1211	if ($uniq) {
1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1213	$self->save_objects ($uniq, cf::IO_UNIQUES);
1214	} else {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1216	}
1217	}	2283	}
1218		2284
1219	sub swap_out {	2285	sub swap_out {
1220	my ($self) = @_;	2286	my ($self) = @_;
1221		2287
		2288	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2289
		2290	return if $self->in_memory != cf::MAP_ACTIVE;
		2291	return if $self->{deny_save};
1222	return if $self->players;	2292	return if $self->players;
1223	return if $self->in_memory != cf::MAP_IN_MEMORY;
1224	return if $self->{deny_save};
1225		2293
		2294	# first deactivate the map and "unlink" it from the core
		2295	$self->deactivate;
		2296	$_->clear_links_to ($self) for values %cf::MAP;
		2297	$self->in_memory (cf::MAP_SWAPPED);
		2298
		2299	# then atomically save
1226	$self->save;	2300	$self->_save;
		2301
		2302	# then free the map
1227	$self->clear;	2303	$self->clear;
1228	$self->in_memory (cf::MAP_SWAPPED);	2304	}
		2305
		2306	sub reset_at {
		2307	my ($self) = @_;
		2308
		2309	# TODO: safety, remove and allow resettable per-player maps
		2310	return 1e99 if $self->{deny_reset};
		2311
		2312	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2313	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2314
		2315	$time + $to
1229	}	2316	}
1230		2317
1231	sub should_reset {	2318	sub should_reset {
1232	my ($map) = @_;	2319	my ($self) = @_;
1233		2320
1234	# TODO: safety, remove and allow resettable per-player maps	2321	$self->reset_at <= $cf::RUNTIME
1235	return if $map->{path}{user_rel};#d#
1236	return if $map->{deny_reset};
1237	#return unless $map->reset_timeout;
1238
1239	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1240
1241	$time + ($map->reset_timeout || $DEFAULT_RESET) < $cf::RUNTIME
1242	}	2322	}
1243		2323
1244	sub reset {	2324	sub reset {
1245	my ($self) = @_;	2325	my ($self) = @_;
1246		2326
		2327	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2328
1247	return if $self->players;	2329	return if $self->players;
1248	return if $self->{path}{user_rel};#d#
1249		2330
1250	warn "resetting map ", $self->path;#d#	2331	cf::trace "resetting map ", $self->path, "\n";
1251		2332
1252	utf8::encode (my $save = $self->{path}->save_path);	2333	$self->in_memory (cf::MAP_SWAPPED);
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255		2334
		2335	# need to save uniques path
		2336	unless ($self->{deny_save}) {
		2337	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2338
		2339	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2340	if $uniq;
		2341	}
		2342
		2343	delete $cf::MAP{$self->path};
		2344
		2345	$self->deactivate;
1256	$_->clear_links_to ($self) for values %cf::MAP;	2346	$_->clear_links_to ($self) for values %cf::MAP;
1257
1258	$self->clear;	2347	$self->clear;
1259	$self->in_memory (cf::MAP_SWAPPED);
1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
1261	}
1262		2348
1263	sub customise_for {	2349	$self->unlink_save;
1264	my ($map, $ob) = @_;	2350	$self->destroy;
		2351	}
1265		2352
1266	if ($map->per_player) {	2353	my $nuke_counter = "aaaa";
1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2354
		2355	sub nuke {
		2356	my ($self) = @_;
		2357
1268	}	2358	{
		2359	my $lock = cf::lock_acquire "map_data:$self->{path}";
1269		2360
1270	$map	2361	delete $cf::MAP{$self->path};
1271	}
1272		2362
1273	sub emergency_save {	2363	$self->unlink_save;
1274	local $cf::FREEZE = 1;
1275		2364
1276	warn "enter emergency map save\n";	2365	bless $self, "cf::map::wrap";
		2366	delete $self->{deny_reset};
		2367	$self->{deny_save} = 1;
		2368	$self->reset_timeout (1);
		2369	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1277		2370
1278	cf::sync_job {	2371	$cf::MAP{$self->path} = $self;
1279	warn "begin emergency map save\n";
1280	$_->save for values %cf::MAP;
1281	};	2372	}
1282		2373
1283	warn "end emergency map save\n";	2374	$self->reset; # polite request, might not happen
		2375	}
		2376
		2377	=item $maps = cf::map::tmp_maps
		2378
		2379	Returns an arrayref with all map paths of currently instantiated and saved
		2380	maps. May block.
		2381
		2382	=cut
		2383
		2384	sub tmp_maps() {
		2385	[
		2386	map {
		2387	utf8::decode $_;
		2388	/\.map$/
		2389	? normalise $_
		2390	: ()
		2391	} @{ aio_readdir $TMPDIR or [] }
		2392	]
		2393	}
		2394
		2395	=item $maps = cf::map::random_maps
		2396
		2397	Returns an arrayref with all map paths of currently instantiated and saved
		2398	random maps. May block.
		2399
		2400	=cut
		2401
		2402	sub random_maps() {
		2403	[
		2404	map {
		2405	utf8::decode $_;
		2406	/\.map$/
		2407	? normalise "?random/$_"
		2408	: ()
		2409	} @{ aio_readdir $RANDOMDIR or [] }
		2410	]
		2411	}
		2412
		2413	=item cf::map::unique_maps
		2414
		2415	Returns an arrayref of paths of all shared maps that have
		2416	instantiated unique items. May block.
		2417
		2418	=cut
		2419
		2420	sub unique_maps() {
		2421	[
		2422	map {
		2423	utf8::decode $_;
		2424	s/\.map$//; # TODO future compatibility hack
		2425	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2426	? ()
		2427	: normalise $_
		2428	} @{ aio_readdir $UNIQUEDIR or [] }
		2429	]
		2430	}
		2431
		2432	=item cf::map::static_maps
		2433
		2434	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2435	file in the shared directory excluding F</styles> and F</editor>). May
		2436	block.
		2437
		2438	=cut
		2439
		2440	sub static_maps() {
		2441	my @dirs = "";
		2442	my @maps;
		2443
		2444	while (@dirs) {
		2445	my $dir = shift @dirs;
		2446
		2447	next if $dir eq "/styles" || $dir eq "/editor";
		2448
		2449	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2450	or return;
		2451
		2452	for (@$files) {
		2453	s/\.map$// or next;
		2454	utf8::decode $_;
		2455	push @maps, "$dir/$_";
		2456	}
		2457
		2458	push @dirs, map "$dir/$_", @$dirs;
		2459	}
		2460
		2461	\@maps
		2462	}
		2463
		2464	=back
		2465
		2466	=head3 cf::object
		2467
		2468	=cut
		2469
		2470	package cf::object;
		2471
		2472	=over 4
		2473
		2474	=item $ob->inv_recursive
		2475
		2476	Returns the inventory of the object I<and> their inventories, recursively,
		2477	but I<not> the object itself.
		2478
		2479	=cut
		2480
		2481	sub inv_recursive_;
		2482	sub inv_recursive_ {
		2483	map { $_, inv_recursive_ $_->inv } @_
		2484	}
		2485
		2486	sub inv_recursive {
		2487	inv_recursive_ inv $_[0]
		2488	}
		2489
		2490	=item $ref = $ob->ref
		2491
		2492	Creates and returns a persistent reference to an object that can be stored as a string.
		2493
		2494	=item $ob = cf::object::deref ($refstring)
		2495
		2496	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2497	even if the object actually exists. May block.
		2498
		2499	=cut
		2500
		2501	sub deref {
		2502	my ($ref) = @_;
		2503
		2504	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2505	my ($uuid, $name) = ($1, $2);
		2506	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2507	or return;
		2508	$pl->ob->uuid eq $uuid
		2509	or return;
		2510
		2511	$pl->ob
		2512	} else {
		2513	warn "$ref: cannot resolve object reference\n";
		2514	undef
		2515	}
1284	}	2516	}
1285		2517
1286	package cf;	2518	package cf;
1287		2519
1288	=back	2520	=back
1289
1290		2521
1291	=head3 cf::object::player	2522	=head3 cf::object::player
1292		2523
1293	=over 4	2524	=over 4
1294		2525
…		…
1297	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2528	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1298	can be C<undef>. Does the right thing when the player is currently in a	2529	can be C<undef>. Does the right thing when the player is currently in a
1299	dialogue with the given NPC character.	2530	dialogue with the given NPC character.
1300		2531
1301	=cut	2532	=cut
		2533
		2534	our $SAY_CHANNEL = {
		2535	id => "say",
		2536	title => "Map",
		2537	reply => "say ",
		2538	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2539	};
		2540
		2541	our $CHAT_CHANNEL = {
		2542	id => "chat",
		2543	title => "Chat",
		2544	reply => "chat ",
		2545	tooltip => "Player chat and shouts, global to the server.",
		2546	};
1302		2547
1303	# rough implementation of a future "reply" method that works	2548	# rough implementation of a future "reply" method that works
1304	# with dialog boxes.	2549	# with dialog boxes.
1305	#TODO: the first argument must go, split into a $npc->reply_to ( method	2550	#TODO: the first argument must go, split into a $npc->reply_to ( method
1306	sub cf::object::player::reply($$$;$) {	2551	sub cf::object::player::reply($$$;$) {
…		…
1308		2553
1309	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2554	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1310		2555
1311	if ($self->{record_replies}) {	2556	if ($self->{record_replies}) {
1312	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2557	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2558
1313	} else {	2559	} else {
		2560	my $pl = $self->contr;
		2561
		2562	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2563	my $dialog = $pl->{npc_dialog};
		2564	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2565
		2566	} else {
1314	$msg = $npc->name . " says: $msg" if $npc;	2567	$msg = $npc->name . " says: $msg" if $npc;
1315	$self->message ($msg, $flags);	2568	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2569	}
1316	}	2570	}
		2571	}
		2572
		2573	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2574
		2575	=cut
		2576
		2577	sub cf::object::send_msg {
		2578	my $pl = shift->contr
		2579	or return;
		2580	$pl->send_msg (@_);
1317	}	2581	}
1318		2582
1319	=item $player_object->may ("access")	2583	=item $player_object->may ("access")
1320		2584
1321	Returns wether the given player is authorized to access resource "access"	2585	Returns wether the given player is authorized to access resource "access"
…		…
1330	(ref $cf::CFG{"may_$access"}	2594	(ref $cf::CFG{"may_$access"}
1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2595	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1332	: $cf::CFG{"may_$access"})	2596	: $cf::CFG{"may_$access"})
1333	}	2597	}
1334		2598
		2599	=item $player_object->enter_link
		2600
		2601	Freezes the player and moves him/her to a special map (C<{link}>).
		2602
		2603	The player should be reasonably safe there for short amounts of time (e.g.
		2604	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2605	though, as the player cannot control the character while it is on the link
		2606	map.
		2607
		2608	Will never block.
		2609
		2610	=item $player_object->leave_link ($map, $x, $y)
		2611
		2612	Moves the player out of the special C<{link}> map onto the specified
		2613	map. If the map is not valid (or omitted), the player will be moved back
		2614	to the location he/she was before the call to C<enter_link>, or, if that
		2615	fails, to the emergency map position.
		2616
		2617	Might block.
		2618
		2619	=cut
		2620
		2621	sub link_map {
		2622	unless ($LINK_MAP) {
		2623	$LINK_MAP = cf::map::find "{link}"
		2624	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2625	$LINK_MAP->load;
		2626	}
		2627
		2628	$LINK_MAP
		2629	}
		2630
1335	sub cf::object::player::enter_link {	2631	sub cf::object::player::enter_link {
1336	my ($self) = @_;	2632	my ($self) = @_;
1337		2633
1338	return if $self->map == $LINK_MAP;
1339
1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1341	if $self->map;
1342
1343	$self->enter_map ($LINK_MAP, 20, 20);
1344	$self->deactivate_recursive;	2634	$self->deactivate_recursive;
		2635
		2636	++$self->{_link_recursion};
		2637
		2638	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2639
		2640	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2641	if $self->map && $self->map->{path} ne "{link}";
		2642
		2643	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1345	}	2644	}
1346		2645
1347	sub cf::object::player::leave_link {	2646	sub cf::object::player::leave_link {
1348	my ($self, $map, $x, $y) = @_;	2647	my ($self, $map, $x, $y) = @_;
1349		2648
		2649	return unless $self->contr->active;
		2650
1350	my $link_pos = delete $self->{_link_pos};	2651	my $link_pos = delete $self->{_link_pos};
1351		2652
1352	unless ($map) {	2653	unless ($map) {
1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1354
1355	# restore original map position	2654	# restore original map position
1356	($map, $x, $y) = @{ $link_pos || [] };	2655	($map, $x, $y) = @{ $link_pos || [] };
1357	$map = cf::map::find_map $map;	2656	$map = cf::map::find $map;
1358		2657
1359	unless ($map) {	2658	unless ($map) {
1360	($map, $x, $y) = @$EMERGENCY_POSITION;	2659	($map, $x, $y) = @$EMERGENCY_POSITION;
1361	$map = cf::map::find_map $map	2660	$map = cf::map::find $map
1362	or die "FATAL: cannot load emergency map\n";	2661	or die "FATAL: cannot load emergency map\n";
1363	}	2662	}
1364	}	2663	}
1365		2664
1366	($x, $y) = (-1, -1)	2665	($x, $y) = (-1, -1)
1367	unless (defined $x) && (defined $y);	2666	unless (defined $x) && (defined $y);
1368		2667
1369	# use -1 or undef as default coordinates, not 0, 0	2668	# use -1 or undef as default coordinates, not 0, 0
1370	($x, $y) = ($map->enter_x, $map->enter_y)	2669	($x, $y) = ($map->enter_x, $map->enter_y)
1371	if $x <=0 && $y <= 0;	2670	if $x <= 0 && $y <= 0;
1372		2671
1373	$map->load;	2672	$map->load;
		2673	$map->load_neighbours;
1374		2674
		2675	return unless $self->contr->active;
		2676
		2677	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2678	if ($self->enter_map ($map, $x, $y)) {
		2679	# entering was successful
		2680	delete $self->{_link_recursion};
		2681	# only activate afterwards, to support waiting in hooks
1375	$self->activate_recursive;	2682	$self->activate_recursive;
1376	$self->enter_map ($map, $x, $y);	2683	}
1377	}
1378		2684
1379	=item $player_object->goto_map ($map, $x, $y)	2685	}
1380		2686
1381	=cut	2687	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1382		2688
		2689	Moves the player to the given map-path and coordinates by first freezing
		2690	her, loading and preparing them map, calling the provided $check callback
		2691	that has to return the map if sucecssful, and then unfreezes the player on
		2692	the new (success) or old (failed) map position. In either case, $done will
		2693	be called at the end of this process.
		2694
		2695	Note that $check will be called with a potentially non-loaded map, so if
		2696	it needs a loaded map it has to call C<< ->load >>.
		2697
		2698	=cut
		2699
		2700	our $GOTOGEN;
		2701
1383	sub cf::object::player::goto_map {	2702	sub cf::object::player::goto {
1384	my ($self, $path, $x, $y) = @_;	2703	my ($self, $path, $x, $y, $check, $done) = @_;
		2704
		2705	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2706	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2707	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2708	($path, $x, $y) = @$EMERGENCY_POSITION;
		2709	}
		2710
		2711	# do generation counting so two concurrent goto's will be executed in-order
		2712	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1385		2713
1386	$self->enter_link;	2714	$self->enter_link;
1387		2715
1388	(Coro::async {	2716	(async {
1389	$path = new cf::path $path;	2717	$Coro::current->{desc} = "player::goto $path $x $y";
1390		2718
1391	my $map = cf::map::find_map $path->as_string;	2719	# *tag paths override both path and x|y
		2720	if ($path =~ /^\*(.*)$/) {
		2721	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2722	my $ob = $obs[rand @obs];
		2723
		2724	# see if we actually can go there
		2725	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2726	$ob = $obs[rand @obs];
		2727	} else {
		2728	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2729	}
		2730	# else put us there anyways for now #d#
		2731
		2732	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2733	} else {
		2734	($path, $x, $y) = (undef, undef, undef);
		2735	}
		2736	}
		2737
		2738	my $map = eval {
		2739	my $map = defined $path ? cf::map::find $path : undef;
		2740
		2741	if ($map) {
1392	$map = $map->customise_for ($self) if $map;	2742	$map = $map->customise_for ($self);
		2743	$map = $check->($map, $x, $y, $self) if $check && $map;
		2744	} else {
		2745	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2746	}
1393		2747
1394	warn "entering ", $map->path, " at ($x, $y)\n"
1395	if $map;	2748	$map
		2749	};
1396		2750
		2751	if ($@) {
		2752	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2753	LOG llevError | logBacktrace, Carp::longmess $@;
		2754	}
		2755
		2756	if ($gen == $self->{_goto_generation}) {
		2757	delete $self->{_goto_generation};
1397	$self->leave_link ($map, $x, $y);	2758	$self->leave_link ($map, $x, $y);
		2759	}
		2760
		2761	$done->($self) if $done;
1398	})->prio (1);	2762	})->prio (1);
1399	}	2763	}
1400		2764
1401	=item $player_object->enter_exit ($exit_object)	2765	=item $player_object->enter_exit ($exit_object)
1402		2766
…		…
1404		2768
1405	sub parse_random_map_params {	2769	sub parse_random_map_params {
1406	my ($spec) = @_;	2770	my ($spec) = @_;
1407		2771
1408	my $rmp = { # defaults	2772	my $rmp = { # defaults
1409	xsize => 10,	2773	xsize => (cf::rndm 15, 40),
1410	ysize => 10,	2774	ysize => (cf::rndm 15, 40),
		2775	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2776	#layout => string,
1411	};	2777	};
1412		2778
1413	for (split /\n/, $spec) {	2779	for (split /\n/, $spec) {
1414	my ($k, $v) = split /\s+/, $_, 2;	2780	my ($k, $v) = split /\s+/, $_, 2;
1415		2781
…		…
1427	# that depends on the exit object	2793	# that depends on the exit object
1428		2794
1429	my $rmp = parse_random_map_params $exit->msg;	2795	my $rmp = parse_random_map_params $exit->msg;
1430		2796
1431	if ($exit->map) {	2797	if ($exit->map) {
1432	$rmp->{region} = $exit->map->region_name;	2798	$rmp->{region} = $exit->region->name;
1433	$rmp->{origin_map} = $exit->map->path;	2799	$rmp->{origin_map} = $exit->map->path;
1434	$rmp->{origin_x} = $exit->x;	2800	$rmp->{origin_x} = $exit->x;
1435	$rmp->{origin_y} = $exit->y;	2801	$rmp->{origin_y} = $exit->y;
		2802
		2803	$exit->map->touch;
1436	}	2804	}
1437		2805
1438	$rmp->{random_seed} ||= $exit->random_seed;	2806	$rmp->{random_seed} ||= $exit->random_seed;
1439		2807
1440	my $data = cf::to_json $rmp;	2808	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1441	my $md5 = Digest::MD5::md5_hex $data;	2809	my $md5 = Digest::MD5::md5_hex $data;
		2810	my $meta = "$RANDOMDIR/$md5.meta";
1442		2811
1443	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2812	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1444	aio_write $fh, 0, (length $data), $data, 0;	2813	aio_write $fh, 0, (length $data), $data, 0;
		2814	undef $fh;
		2815	aio_rename "$meta~", $meta;
1445		2816
		2817	my $slaying = "?random/$md5";
		2818
		2819	if ($exit->valid) {
1446	$exit->slaying ("?random/$md5");	2820	$exit->slaying ("?random/$md5");
1447	$exit->msg (undef);	2821	$exit->msg (undef);
		2822	}
1448	}	2823	}
1449	}	2824	}
1450		2825
1451	sub cf::object::player::enter_exit {	2826	sub cf::object::player::enter_exit {
1452	my ($self, $exit) = @_;	2827	my ($self, $exit) = @_;
1453		2828
1454	return unless $self->type == cf::PLAYER;	2829	return unless $self->type == cf::PLAYER;
1455		2830
1456	$self->enter_link;	2831	$self->enter_link;
1457		2832
1458	(Coro::async {	2833	(async {
		2834	$Coro::current->{desc} = "enter_exit";
		2835
1459	unless (eval {	2836	unless (eval {
		2837	$self->deactivate_recursive; # just to be sure
1460		2838
		2839	# random map handling
		2840	{
		2841	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2842
1461	prepare_random_map $exit	2843	prepare_random_map $exit
1462	if $exit->slaying eq "/!";	2844	if $exit->slaying eq "/!";
		2845	}
1463		2846
1464	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2847	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1465	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2848	my $x = $exit->stats->hp;
		2849	my $y = $exit->stats->sp;
1466		2850
		2851	$self->goto ($map, $x, $y);
		2852
		2853	# if exit is damned, update players death & WoR home-position
		2854	$self->contr->savebed ($map, $x, $y)
		2855	if $exit->flag (cf::FLAG_DAMNED);
		2856
1467	1;	2857	1
1468	}) {	2858	}) {
1469	$self->message ("Something went wrong deep within the crossfire server. "	2859	$self->message ("Something went wrong deep within the deliantra server. "
1470	. "I'll try to bring you back to the map you were before. "	2860	. "I'll try to bring you back to the map you were before. "
1471	. "Please report this to the dungeon master",	2861	. "Please report this to the dungeon master!",
1472	cf::NDI_UNIQUE | cf::NDI_RED);	2862	cf::NDI_UNIQUE | cf::NDI_RED);
1473		2863
1474	warn "ERROR in enter_exit: $@";	2864	error "ERROR in enter_exit: $@";
1475	$self->leave_link;	2865	$self->leave_link;
1476	}	2866	}
1477	})->prio (1);	2867	})->prio (1);
1478	}	2868	}
1479		2869
…		…
1490		2880
1491	sub cf::client::send_drawinfo {	2881	sub cf::client::send_drawinfo {
1492	my ($self, $text, $flags) = @_;	2882	my ($self, $text, $flags) = @_;
1493		2883
1494	utf8::encode $text;	2884	utf8::encode $text;
1495	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2885	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1496	}	2886	}
1497		2887
		2888	=item $client->send_big_packet ($pkt)
		2889
		2890	Like C<send_packet>, but tries to compress large packets, and fragments
		2891	them as required.
		2892
		2893	=cut
		2894
		2895	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2896
		2897	sub cf::client::send_big_packet {
		2898	my ($self, $pkt) = @_;
		2899
		2900	# try lzf for large packets
		2901	$pkt = "lzf " . Compress::LZF::compress $pkt
		2902	if 1024 <= length $pkt and $self->{can_lzf};
		2903
		2904	# split very large packets
		2905	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2906	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2907	$pkt = "frag";
		2908	}
		2909
		2910	$self->send_packet ($pkt);
		2911	}
		2912
		2913	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2914
		2915	Send a drawinfo or msg packet to the client, formatting the msg for the
		2916	client if neccessary. C<$type> should be a string identifying the type of
		2917	the message, with C<log> being the default. If C<$color> is negative, suppress
		2918	the message unless the client supports the msg packet.
		2919
		2920	=cut
		2921
		2922	# non-persistent channels (usually the info channel)
		2923	our %CHANNEL = (
		2924	"c/motd" => {
		2925	id => "infobox",
		2926	title => "MOTD",
		2927	reply => undef,
		2928	tooltip => "The message of the day",
		2929	},
		2930	"c/identify" => {
		2931	id => "infobox",
		2932	title => "Identify",
		2933	reply => undef,
		2934	tooltip => "Items recently identified",
		2935	},
		2936	"c/examine" => {
		2937	id => "infobox",
		2938	title => "Examine",
		2939	reply => undef,
		2940	tooltip => "Signs and other items you examined",
		2941	},
		2942	"c/shopinfo" => {
		2943	id => "infobox",
		2944	title => "Shop Info",
		2945	reply => undef,
		2946	tooltip => "What your bargaining skill tells you about the shop",
		2947	},
		2948	"c/book" => {
		2949	id => "infobox",
		2950	title => "Book",
		2951	reply => undef,
		2952	tooltip => "The contents of a note or book",
		2953	},
		2954	"c/lookat" => {
		2955	id => "infobox",
		2956	title => "Look",
		2957	reply => undef,
		2958	tooltip => "What you saw there",
		2959	},
		2960	"c/who" => {
		2961	id => "infobox",
		2962	title => "Players",
		2963	reply => undef,
		2964	tooltip => "Shows players who are currently online",
		2965	},
		2966	"c/body" => {
		2967	id => "infobox",
		2968	title => "Body Parts",
		2969	reply => undef,
		2970	tooltip => "Shows which body parts you posess and are available",
		2971	},
		2972	"c/statistics" => {
		2973	id => "infobox",
		2974	title => "Statistics",
		2975	reply => undef,
		2976	tooltip => "Shows your primary statistics",
		2977	},
		2978	"c/skills" => {
		2979	id => "infobox",
		2980	title => "Skills",
		2981	reply => undef,
		2982	tooltip => "Shows your experience per skill and item power",
		2983	},
		2984	"c/shopitems" => {
		2985	id => "infobox",
		2986	title => "Shop Items",
		2987	reply => undef,
		2988	tooltip => "Shows the items currently for sale in this shop",
		2989	},
		2990	"c/resistances" => {
		2991	id => "infobox",
		2992	title => "Resistances",
		2993	reply => undef,
		2994	tooltip => "Shows your resistances",
		2995	},
		2996	"c/pets" => {
		2997	id => "infobox",
		2998	title => "Pets",
		2999	reply => undef,
		3000	tooltip => "Shows information abotu your pets/a specific pet",
		3001	},
		3002	"c/perceiveself" => {
		3003	id => "infobox",
		3004	title => "Perceive Self",
		3005	reply => undef,
		3006	tooltip => "You gained detailed knowledge about yourself",
		3007	},
		3008	"c/uptime" => {
		3009	id => "infobox",
		3010	title => "Uptime",
		3011	reply => undef,
		3012	tooltip => "How long the server has been running since last restart",
		3013	},
		3014	"c/mapinfo" => {
		3015	id => "infobox",
		3016	title => "Map Info",
		3017	reply => undef,
		3018	tooltip => "Information related to the maps",
		3019	},
		3020	"c/party" => {
		3021	id => "party",
		3022	title => "Party",
		3023	reply => "gsay ",
		3024	tooltip => "Messages and chat related to your party",
		3025	},
		3026	"c/death" => {
		3027	id => "death",
		3028	title => "Death",
		3029	reply => undef,
		3030	tooltip => "Reason for and more info about your most recent death",
		3031	},
		3032	"c/say" => $SAY_CHANNEL,
		3033	"c/chat" => $CHAT_CHANNEL,
		3034	);
		3035
		3036	sub cf::client::send_msg {
		3037	my ($self, $channel, $msg, $color, @extra) = @_;
		3038
		3039	$msg = $self->pl->expand_cfpod ($msg)
		3040	unless $color & cf::NDI_VERBATIM;
		3041
		3042	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3043
		3044	# check predefined channels, for the benefit of C
		3045	if ($CHANNEL{$channel}) {
		3046	$channel = $CHANNEL{$channel};
		3047
		3048	$self->ext_msg (channel_info => $channel);
		3049	$channel = $channel->{id};
		3050
		3051	} elsif (ref $channel) {
		3052	# send meta info to client, if not yet sent
		3053	unless (exists $self->{channel}{$channel->{id}}) {
		3054	$self->{channel}{$channel->{id}} = $channel;
		3055	$self->ext_msg (channel_info => $channel);
		3056	}
		3057
		3058	$channel = $channel->{id};
		3059	}
		3060
		3061	return unless @extra || length $msg;
		3062
		3063	# default colour, mask it out
		3064	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3065	if $color & cf::NDI_DEF;
		3066
		3067	my $pkt = "msg "
		3068	. $self->{json_coder}->encode (
		3069	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3070	);
		3071
		3072	$self->send_big_packet ($pkt);
		3073	}
		3074
		3075	=item $client->ext_msg ($type, @msg)
		3076
		3077	Sends an ext event to the client.
		3078
		3079	=cut
		3080
		3081	sub cf::client::ext_msg($$@) {
		3082	my ($self, $type, @msg) = @_;
		3083
		3084	if ($self->extcmd == 2) {
		3085	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3086	} elsif ($self->extcmd == 1) { # TODO: remove
		3087	push @msg, msgtype => "event_$type";
		3088	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3089	}
		3090	}
		3091
		3092	=item $client->ext_reply ($msgid, @msg)
		3093
		3094	Sends an ext reply to the client.
		3095
		3096	=cut
		3097
		3098	sub cf::client::ext_reply($$@) {
		3099	my ($self, $id, @msg) = @_;
		3100
		3101	if ($self->extcmd == 2) {
		3102	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3103	} elsif ($self->extcmd == 1) {
		3104	#TODO: version 1, remove
		3105	unshift @msg, msgtype => "reply", msgid => $id;
		3106	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3107	}
		3108	}
1498		3109
1499	=item $success = $client->query ($flags, "text", \&cb)	3110	=item $success = $client->query ($flags, "text", \&cb)
1500		3111
1501	Queues a query to the client, calling the given callback with	3112	Queues a query to the client, calling the given callback with
1502	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3113	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1503	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3114	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1504		3115
1505	Queries can fail, so check the return code. Or don't, as queries will become	3116	Queries can fail, so check the return code. Or don't, as queries will
1506	reliable at some point in the future.	3117	become reliable at some point in the future.
1507		3118
1508	=cut	3119	=cut
1509		3120
1510	sub cf::client::query {	3121	sub cf::client::query {
1511	my ($self, $flags, $text, $cb) = @_;	3122	my ($self, $flags, $text, $cb) = @_;
…		…
1519	utf8::encode $text;	3130	utf8::encode $text;
1520	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3131	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1521		3132
1522	$self->send_packet ($self->{query_queue}[0][0])	3133	$self->send_packet ($self->{query_queue}[0][0])
1523	if @{ $self->{query_queue} } == 1;	3134	if @{ $self->{query_queue} } == 1;
		3135
		3136	1
1524	}	3137	}
1525		3138
1526	cf::client->attach (	3139	cf::client->attach (
		3140	on_connect => sub {
		3141	my ($ns) = @_;
		3142
		3143	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3144	},
1527	on_reply => sub {	3145	on_reply => sub {
1528	my ($ns, $msg) = @_;	3146	my ($ns, $msg) = @_;
1529		3147
1530	# this weird shuffling is so that direct followup queries	3148	# this weird shuffling is so that direct followup queries
1531	# get handled first	3149	# get handled first
1532	my $queue = delete $ns->{query_queue};	3150	my $queue = delete $ns->{query_queue}
		3151	or return; # be conservative, not sure how that can happen, but we saw a crash here
1533		3152
1534	(shift @$queue)->[1]->($msg);	3153	(shift @$queue)->[1]->($msg);
		3154	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1535		3155
1536	push @{ $ns->{query_queue} }, @$queue;	3156	push @{ $ns->{query_queue} }, @$queue;
1537		3157
1538	if (@{ $ns->{query_queue} } == @$queue) {	3158	if (@{ $ns->{query_queue} } == @$queue) {
1539	if (@$queue) {	3159	if (@$queue) {
…		…
1541	} else {	3161	} else {
1542	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3162	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1543	}	3163	}
1544	}	3164	}
1545	},	3165	},
		3166	on_exticmd => sub {
		3167	my ($ns, $buf) = @_;
		3168
		3169	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3170
		3171	if (ref $msg) {
		3172	my ($type, $reply, @payload) =
		3173	"ARRAY" eq ref $msg
		3174	? @$msg
		3175	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3176
		3177	my @reply;
		3178
		3179	if (my $cb = $EXTICMD{$type}) {
		3180	@reply = $cb->($ns, @payload);
		3181	}
		3182
		3183	$ns->ext_reply ($reply, @reply)
		3184	if $reply;
		3185
		3186	} else {
		3187	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3188	}
		3189
		3190	cf::override;
		3191	},
1546	);	3192	);
1547		3193
1548	=item $client->coro (\&cb)	3194	=item $client->async (\&cb)
1549		3195
1550	Create a new coroutine, running the specified callback. The coroutine will	3196	Create a new coroutine, running the specified callback. The coroutine will
1551	be automatically cancelled when the client gets destroyed (e.g. on logout,	3197	be automatically cancelled when the client gets destroyed (e.g. on logout,
1552	or loss of connection).	3198	or loss of connection).
1553		3199
1554	=cut	3200	=cut
1555		3201
1556	sub cf::client::coro {	3202	sub cf::client::async {
1557	my ($self, $cb) = @_;	3203	my ($self, $cb) = @_;
1558		3204
1559	my $coro; $coro = async {	3205	my $coro = &Coro::async ($cb);
1560	eval {
1561	$cb->();
1562	};
1563	warn $@ if $@;
1564	};
1565		3206
1566	$coro->on_destroy (sub {	3207	$coro->on_destroy (sub {
1567	delete $self->{_coro}{$coro+0};	3208	delete $self->{_coro}{$coro+0};
1568	});	3209	});
1569		3210
…		…
1571		3212
1572	$coro	3213	$coro
1573	}	3214	}
1574		3215
1575	cf::client->attach (	3216	cf::client->attach (
1576	on_destroy => sub {	3217	on_client_destroy => sub {
1577	my ($ns) = @_;	3218	my ($ns) = @_;
1578		3219
1579	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3220	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1580	},	3221	},
1581	);	3222	);
…		…
1596	our $safe = new Safe "safe";	3237	our $safe = new Safe "safe";
1597	our $safe_hole = new Safe::Hole;	3238	our $safe_hole = new Safe::Hole;
1598		3239
1599	$SIG{FPE} = 'IGNORE';	3240	$SIG{FPE} = 'IGNORE';
1600		3241
1601	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3242	$safe->permit_only (Opcode::opset qw(
		3243	:base_core :base_mem :base_orig :base_math :base_loop
		3244	grepstart grepwhile mapstart mapwhile
		3245	sort time
		3246	));
1602		3247
1603	# here we export the classes and methods available to script code	3248	# here we export the classes and methods available to script code
1604		3249
1605	=pod	3250	=pod
1606		3251
1607	The following fucntions and emthods are available within a safe environment:	3252	The following functions and methods are available within a safe environment:
1608		3253
1609	cf::object contr pay_amount pay_player map	3254	cf::object
		3255	contr pay_amount pay_player map x y force_find force_add destroy
		3256	insert remove name archname title slaying race decrease split
		3257	value
		3258
1610	cf::object::player player	3259	cf::object::player
1611	cf::player peaceful	3260	player
1612	cf::map trigger	3261
		3262	cf::player
		3263	peaceful
		3264
		3265	cf::map
		3266	trigger
1613		3267
1614	=cut	3268	=cut
1615		3269
1616	for (	3270	for (
1617	["cf::object" => qw(contr pay_amount pay_player map)],	3271	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3272	insert remove inv nrof name archname title slaying race
		3273	decrease split destroy change_exp value msg lore send_msg)],
1618	["cf::object::player" => qw(player)],	3274	["cf::object::player" => qw(player)],
1619	["cf::player" => qw(peaceful)],	3275	["cf::player" => qw(peaceful send_msg)],
1620	["cf::map" => qw(trigger)],	3276	["cf::map" => qw(trigger)],
1621	) {	3277	) {
1622	no strict 'refs';
1623	my ($pkg, @funs) = @$_;	3278	my ($pkg, @funs) = @$_;
1624	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3279	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1625	for @funs;	3280	for @funs;
1626	}	3281	}
1627		3282
…		…
1642		3297
1643	my $qcode = $code;	3298	my $qcode = $code;
1644	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3299	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1645	$qcode =~ s/\n/\\n/g;	3300	$qcode =~ s/\n/\\n/g;
1646		3301
		3302	%vars = (_dummy => 0) unless %vars;
		3303
		3304	my @res;
1647	local $_;	3305	local $_;
1648	local @safe::cf::_safe_eval_args = values %vars;
1649		3306
1650	my $eval =	3307	my $eval =
1651	"do {\n"	3308	"do {\n"
1652	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3309	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1653	. "#line 0 \"{$qcode}\"\n"	3310	. "#line 0 \"{$qcode}\"\n"
1654	. $code	3311	. $code
1655	. "\n}"	3312	. "\n}"
1656	;	3313	;
1657		3314
		3315	if ($CFG{safe_eval}) {
1658	sub_generation_inc;	3316	sub_generation_inc;
		3317	local @safe::cf::_safe_eval_args = values %vars;
1659	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3318	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1660	sub_generation_inc;	3319	sub_generation_inc;
		3320	} else {
		3321	local @cf::_safe_eval_args = values %vars;
		3322	@res = wantarray ? eval eval : scalar eval $eval;
		3323	}
1661		3324
1662	if ($@) {	3325	if ($@) {
1663	warn "$@";	3326	warn "$@",
1664	warn "while executing safe code '$code'\n";	3327	"while executing safe code '$code'\n",
1665	warn "with arguments " . (join " ", %vars) . "\n";	3328	"with arguments " . (join " ", %vars) . "\n";
1666	}	3329	}
1667		3330
1668	wantarray ? @res : $res[0]	3331	wantarray ? @res : $res[0]
1669	}	3332	}
1670		3333
…		…
1684	=cut	3347	=cut
1685		3348
1686	sub register_script_function {	3349	sub register_script_function {
1687	my ($fun, $cb) = @_;	3350	my ($fun, $cb) = @_;
1688		3351
1689	no strict 'refs';	3352	$fun = "safe::$fun" if $CFG{safe_eval};
1690	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3353	*$fun = $safe_hole->wrap ($cb);
1691	}	3354	}
1692		3355
1693	=back	3356	=back
1694		3357
1695	=cut	3358	=cut
1696		3359
1697	#############################################################################	3360	#############################################################################
		3361	# the server's init and main functions
1698		3362
1699	=head2 EXTENSION DATABASE SUPPORT	3363	# async inc loader. yay.
		3364	sub inc_loader {
		3365	my $mod = $_[1];
1700		3366
1701	Crossfire maintains a very simple database for extension use. It can	3367	if (in_main && !tick_inhibit) {
1702	currently store anything that can be serialised using Storable, which	3368	Carp::cluck "ERROR: attempted synchronous perl module load ($mod)";
1703	excludes objects.	3369	} else {
1704		3370	debug "loading perl module $mod\n";
1705	The parameter C<$family> should best start with the name of the extension
1706	using it, it should be unique.
1707
1708	=over 4
1709
1710	=item $hashref = cf::db_get $family
1711
1712	Return a hashref for use by the extension C<$family>, which can be
1713	modified. After modifications, you have to call C<cf::db_dirty> or
1714	C<cf::db_sync>.
1715
1716	=item $value = cf::db_get $family => $key
1717
1718	Returns a single value from the database
1719
1720	=item cf::db_put $family => $hashref
1721
1722	Stores the given family hashref into the database. Updates are delayed, if
1723	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1724
1725	=item cf::db_put $family => $key => $value
1726
1727	Stores the given C<$value> in the family hash. Updates are delayed, if you
1728	want the data to be synced to disk immediately, use C<cf::db_sync>.
1729
1730	=item cf::db_dirty
1731
1732	Marks the database as dirty, to be updated at a later time.
1733
1734	=item cf::db_sync
1735
1736	Immediately write the database to disk I<if it is dirty>.
1737
1738	=cut
1739
1740	our $DB;
1741
1742	{
1743	my $path = cf::localdir . "/database.pst";
1744
1745	sub db_load() {
1746	warn "loading database $path\n";#d# remove later
1747	$DB = stat $path ? Storable::retrieve $path : { };
1748	}	3371	}
1749		3372
1750	my $pid;	3373	# 1. find real file
		3374	for my $dir (@ORIG_INC) {
		3375	warn "$dir/$mod\n";#d#
		3376	ref $dir and next;
		3377	0 <= Coro::AIO::aio_load "$dir/$mod", my $data
		3378	or next;
1751		3379
1752	sub db_save() {	3380	$data = "#line 1 $dir/$mod\n$data";
1753	warn "saving database $path\n";#d# remove later
1754	waitpid $pid, 0 if $pid;
1755	if (0 == ($pid = fork)) {
1756	$DB->{_meta}{version} = 1;
1757	Storable::nstore $DB, "$path~";
1758	rename "$path~", $path;
1759	cf::_exit 0 if defined $pid;
1760	}
1761	}
1762		3381
1763	my $dirty;	3382	open my $fh, "<", \$data or die;
1764		3383
1765	sub db_sync() {	3384	return $fh;
1766	db_save if $dirty;
1767	undef $dirty;
1768	}	3385	}
1769		3386
1770	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	3387	()
1771	db_sync;	3388	}
		3389
		3390	sub init_inc {
		3391	# save original @INC
		3392	@ORIG_INC = ($LIBDIR, @INC) unless @ORIG_INC;
		3393
		3394	# make sure we can do scalar-opens
		3395	open my $dummy, "<", \my $dummy2;
		3396
		3397	# execute some stuff so perl load's some of the core modules
		3398	/Ü/ =~ /ü/i;
		3399	eval { &Storable::nstore_fd };
		3400
		3401	@INC = (\&inc_loader, @ORIG_INC); # @ORIG_INC is needed for DynaLoader, AutoLoad etc.
		3402
		3403	debug "module loading will be asynchronous from this point on.";
		3404	}
		3405
		3406	sub load_facedata($) {
		3407	my ($path) = @_;
		3408
		3409	# HACK to clear player env face cache, we need some signal framework
		3410	# for this (global event?)
		3411	%ext::player_env::MUSIC_FACE_CACHE = ();
		3412
		3413	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3414
		3415	trace "loading facedata from $path\n";
		3416
		3417	my $facedata;
		3418	0 < aio_load $path, $facedata
		3419	or die "$path: $!";
		3420
		3421	$facedata = Coro::Storable::thaw $facedata;
		3422
		3423	$facedata->{version} == 2
		3424	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3425
		3426	# patch in the exptable
		3427	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3428	$facedata->{resource}{"res/exp_table"} = {
		3429	type => FT_RSRC,
		3430	data => $exp_table,
		3431	hash => (Digest::MD5::md5 $exp_table),
1772	});	3432	};
		3433	cf::cede_to_tick;
1773		3434
1774	sub db_dirty() {
1775	$dirty = 1;
1776	$idle->start;
1777	}	3435	{
		3436	my $faces = $facedata->{faceinfo};
1778		3437
1779	sub db_get($;$) {	3438	while (my ($face, $info) = each %$faces) {
1780	@_ >= 2	3439	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1781	? $DB->{$_[0]}{$_[1]}
1782	: ($DB->{$_[0]} ||= { })
1783	}
1784		3440
1785	sub db_put($$;$) {	3441	cf::face::set_visibility $idx, $info->{visibility};
1786	if (@_ >= 3) {	3442	cf::face::set_magicmap $idx, $info->{magicmap};
1787	$DB->{$_[0]}{$_[1]} = $_[2];	3443	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1788	} else {	3444	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1789	$DB->{$_[0]} = $_[1];
1790	}
1791	db_dirty;
1792	}
1793		3445
1794	cf::global->attach (	3446	cf::cede_to_tick;
1795	prio => 10000,
1796	on_cleanup => sub {
1797	db_sync;
1798	},	3447	}
1799	);
1800	}
1801		3448
1802	#############################################################################	3449	while (my ($face, $info) = each %$faces) {
1803	# the server's main()	3450	next unless $info->{smooth};
1804		3451
1805	sub cfg_load {	3452	my $idx = cf::face::find $face
		3453	or next;
		3454
		3455	if (my $smooth = cf::face::find $info->{smooth}) {
		3456	cf::face::set_smooth $idx, $smooth;
		3457	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3458	} else {
		3459	error "smooth face '$info->{smooth}' not found for face '$face'";
		3460	}
		3461
		3462	cf::cede_to_tick;
		3463	}
		3464	}
		3465
		3466	{
		3467	my $anims = $facedata->{animinfo};
		3468
		3469	while (my ($anim, $info) = each %$anims) {
		3470	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3471	cf::cede_to_tick;
		3472	}
		3473
		3474	cf::anim::invalidate_all; # d'oh
		3475	}
		3476
		3477	{
		3478	my $res = $facedata->{resource};
		3479
		3480	while (my ($name, $info) = each %$res) {
		3481	if (defined $info->{type}) {
		3482	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3483
		3484	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3485	cf::face::set_type $idx, $info->{type};
		3486	} else {
		3487	$RESOURCE{$name} = $info; # unused
		3488	}
		3489
		3490	cf::cede_to_tick;
		3491	}
		3492	}
		3493
		3494	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3495
		3496	1
		3497	}
		3498
		3499	register_exticmd fx_want => sub {
		3500	my ($ns, $want) = @_;
		3501
		3502	while (my ($k, $v) = each %$want) {
		3503	$ns->fx_want ($k, $v);
		3504	}
		3505	};
		3506
		3507	sub load_resource_file($) {
		3508	my $guard = lock_acquire "load_resource_file";
		3509
		3510	my $status = load_resource_file_ $_[0];
		3511	get_slot 0.1, 100;
		3512	cf::arch::commit_load;
		3513
		3514	$status
		3515	}
		3516
		3517	sub reload_regions {
		3518	# HACK to clear player env face cache, we need some signal framework
		3519	# for this (global event?)
		3520	%ext::player_env::MUSIC_FACE_CACHE = ();
		3521
		3522	load_resource_file "$MAPDIR/regions"
		3523	or die "unable to load regions file\n";
		3524
		3525	for (cf::region::list) {
		3526	$_->{match} = qr/$_->{match}/
		3527	if exists $_->{match};
		3528	}
		3529	}
		3530
		3531	sub reload_facedata {
		3532	load_facedata "$DATADIR/facedata"
		3533	or die "unable to load facedata\n";
		3534	}
		3535
		3536	sub reload_archetypes {
		3537	load_resource_file "$DATADIR/archetypes"
		3538	or die "unable to load archetypes\n";
		3539	}
		3540
		3541	sub reload_treasures {
		3542	load_resource_file "$DATADIR/treasures"
		3543	or die "unable to load treasurelists\n";
		3544	}
		3545
		3546	sub reload_sound {
		3547	trace "loading sound config from $DATADIR/sound\n";
		3548
		3549	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3550	or die "$DATADIR/sound $!";
		3551
		3552	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3553
		3554	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3555	my $sound = $soundconf->{compat}[$_]
		3556	or next;
		3557
		3558	my $face = cf::face::find "sound/$sound->[1]";
		3559	cf::sound::set $sound->[0] => $face;
		3560	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3561	}
		3562
		3563	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3564	my $face = cf::face::find "sound/$v";
		3565	cf::sound::set $k => $face;
		3566	}
		3567	}
		3568
		3569	sub reload_resources {
		3570	trace "reloading resource files...\n";
		3571
		3572	reload_facedata;
		3573	reload_sound;
		3574	reload_archetypes;
		3575	reload_regions;
		3576	reload_treasures;
		3577
		3578	trace "finished reloading resource files\n";
		3579	}
		3580
		3581	sub reload_config {
		3582	trace "reloading config file...\n";
		3583
1806	open my $fh, "<:utf8", cf::confdir . "/config"	3584	open my $fh, "<:utf8", "$CONFDIR/config"
1807	or return;	3585	or return;
1808		3586
1809	local $/;	3587	local $/;
1810	*CFG = YAML::Syck::Load <$fh>;	3588	*CFG = YAML::XS::Load scalar <$fh>;
		3589
		3590	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3591
		3592	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3593	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3594
		3595	if (exists $CFG{mlockall}) {
		3596	eval {
		3597	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3598	and die "WARNING: m(un)lockall failed: $!\n";
		3599	};
		3600	warn $@ if $@;
		3601	}
		3602
		3603	trace "finished reloading resource files\n";
		3604	}
		3605
		3606	sub pidfile() {
		3607	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3608	or die "$PIDFILE: $!";
		3609	flock $fh, &Fcntl::LOCK_EX
		3610	or die "$PIDFILE: flock: $!";
		3611	$fh
		3612	}
		3613
		3614	# make sure only one server instance is running at any one time
		3615	sub atomic {
		3616	my $fh = pidfile;
		3617
		3618	my $pid = <$fh>;
		3619	kill 9, $pid if $pid > 0;
		3620
		3621	seek $fh, 0, 0;
		3622	print $fh $$;
		3623	}
		3624
		3625	sub main_loop {
		3626	trace "EV::loop starting\n";
		3627	if (1) {
		3628	EV::loop;
		3629	}
		3630	trace "EV::loop returned\n";
		3631	goto &main_loop unless $REALLY_UNLOOP;
1811	}	3632	}
1812		3633
1813	sub main {	3634	sub main {
		3635	cf::init_globals; # initialise logging
		3636
		3637	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3638	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3639	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3640	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3641
		3642	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3643
1814	# we must not ever block the main coroutine	3644	# we must not ever block the main coroutine
1815	local $Coro::idle = sub {	3645	local $Coro::idle = sub {
1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3646	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1817	(Coro::unblock_sub {	3647	(async {
1818	Event::one_event;	3648	$Coro::current->{desc} = "IDLE BUG HANDLER";
1819	})->();	3649	EV::loop EV::LOOP_ONESHOT;
		3650	})->prio (Coro::PRIO_MAX);
1820	};	3651	};
1821		3652
1822	cfg_load;	3653	evthread_start IO::AIO::poll_fileno;
1823	db_load;	3654
		3655	cf::sync_job {
		3656	init_inc;
		3657
		3658	cf::init_experience;
		3659	cf::init_anim;
		3660	cf::init_attackmess;
		3661	cf::init_dynamic;
		3662
		3663	cf::load_settings;
		3664	cf::load_materials;
		3665
		3666	reload_resources;
		3667	reload_config;
		3668	db_init;
		3669
		3670	cf::init_uuid;
		3671	cf::init_signals;
		3672	cf::init_skills;
		3673
		3674	cf::init_beforeplay;
		3675
		3676	atomic;
		3677
1824	load_extensions;	3678	load_extensions;
1825	Event::loop;	3679
		3680	utime time, time, $RUNTIMEFILE;
		3681
		3682	# no (long-running) fork's whatsoever before this point(!)
		3683	use POSIX ();
		3684	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3685
		3686	(pop @POST_INIT)->(0) while @POST_INIT;
		3687	};
		3688
		3689	cf::object::thawer::errors_are_fatal 0;
		3690	info "parse errors in files are no longer fatal from this point on.\n";
		3691
		3692	my $free_main; $free_main = EV::idle sub {
		3693	undef $free_main;
		3694	undef &main; # free gobs of memory :)
		3695	};
		3696
		3697	goto &main_loop;
1826	}	3698	}
1827		3699
1828	#############################################################################	3700	#############################################################################
1829	# initialisation	3701	# initialisation and cleanup
1830		3702
1831	sub perl_reload() {	3703	# install some emergency cleanup handlers
		3704	BEGIN {
		3705	our %SIGWATCHER = ();
		3706	for my $signal (qw(INT HUP TERM)) {
		3707	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3708	cf::cleanup "SIG$signal";
		3709	};
		3710	}
		3711	}
		3712
		3713	sub write_runtime_sync {
		3714	my $t0 = AE::time;
		3715
		3716	# first touch the runtime file to show we are still running:
		3717	# the fsync below can take a very very long time.
		3718
		3719	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3720
		3721	my $guard = cf::lock_acquire "write_runtime";
		3722
		3723	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3724	or return;
		3725
		3726	my $value = $cf::RUNTIME + 90 + 10;
		3727	# 10 is the runtime save interval, for a monotonic clock
		3728	# 60 allows for the watchdog to kill the server.
		3729
		3730	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3731	and return;
		3732
		3733	# always fsync - this file is important
		3734	aio_fsync $fh
		3735	and return;
		3736
		3737	# touch it again to show we are up-to-date
		3738	aio_utime $fh, undef, undef;
		3739
		3740	close $fh
		3741	or return;
		3742
		3743	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3744	and return;
		3745
		3746	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3747
		3748	1
		3749	}
		3750
		3751	our $uuid_lock;
		3752	our $uuid_skip;
		3753
		3754	sub write_uuid_sync($) {
		3755	$uuid_skip ||= $_[0];
		3756
		3757	return if $uuid_lock;
		3758	local $uuid_lock = 1;
		3759
		3760	my $uuid = "$LOCALDIR/uuid";
		3761
		3762	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3763	or return;
		3764
		3765	my $value = uuid_seq uuid_cur;
		3766
		3767	unless ($value) {
		3768	info "cowardly refusing to write zero uuid value!\n";
		3769	return;
		3770	}
		3771
		3772	my $value = uuid_str $value + $uuid_skip;
		3773	$uuid_skip = 0;
		3774
		3775	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3776	and return;
		3777
		3778	# always fsync - this file is important
		3779	aio_fsync $fh
		3780	and return;
		3781
		3782	close $fh
		3783	or return;
		3784
		3785	aio_rename "$uuid~", $uuid
		3786	and return;
		3787
		3788	trace "uuid file written ($value).\n";
		3789
		3790	1
		3791
		3792	}
		3793
		3794	sub write_uuid($$) {
		3795	my ($skip, $sync) = @_;
		3796
		3797	$sync ? write_uuid_sync $skip
		3798	: async { write_uuid_sync $skip };
		3799	}
		3800
		3801	sub emergency_save() {
		3802	my $freeze_guard = cf::freeze_mainloop;
		3803
		3804	info "emergency_perl_save: enter\n";
		3805
		3806	# this is a trade-off: we want to be very quick here, so
		3807	# save all maps without fsync, and later call a global sync
		3808	# (which in turn might be very very slow)
		3809	local $USE_FSYNC = 0;
		3810
		3811	cf::sync_job {
		3812	cf::write_runtime_sync; # external watchdog should not bark
		3813
		3814	# use a peculiar iteration method to avoid tripping on perl
		3815	# refcount bugs in for. also avoids problems with players
		3816	# and maps saved/destroyed asynchronously.
		3817	info "emergency_perl_save: begin player save\n";
		3818	for my $login (keys %cf::PLAYER) {
		3819	my $pl = $cf::PLAYER{$login} or next;
		3820	$pl->valid or next;
		3821	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3822	$pl->save;
		3823	}
		3824	info "emergency_perl_save: end player save\n";
		3825
		3826	cf::write_runtime_sync; # external watchdog should not bark
		3827
		3828	info "emergency_perl_save: begin map save\n";
		3829	for my $path (keys %cf::MAP) {
		3830	my $map = $cf::MAP{$path} or next;
		3831	$map->valid or next;
		3832	$map->save;
		3833	}
		3834	info "emergency_perl_save: end map save\n";
		3835
		3836	cf::write_runtime_sync; # external watchdog should not bark
		3837
		3838	info "emergency_perl_save: begin database checkpoint\n";
		3839	BDB::db_env_txn_checkpoint $DB_ENV;
		3840	info "emergency_perl_save: end database checkpoint\n";
		3841
		3842	info "emergency_perl_save: begin write uuid\n";
		3843	write_uuid_sync 1;
		3844	info "emergency_perl_save: end write uuid\n";
		3845
		3846	cf::write_runtime_sync; # external watchdog should not bark
		3847
		3848	trace "emergency_perl_save: syncing database to disk";
		3849	BDB::db_env_txn_checkpoint $DB_ENV;
		3850
		3851	info "emergency_perl_save: starting sync\n";
		3852	IO::AIO::aio_sync sub {
		3853	info "emergency_perl_save: finished sync\n";
		3854	};
		3855
		3856	cf::write_runtime_sync; # external watchdog should not bark
		3857
		3858	trace "emergency_perl_save: flushing outstanding aio requests";
		3859	while (IO::AIO::nreqs || BDB::nreqs) {
		3860	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3861	}
		3862
		3863	cf::write_runtime_sync; # external watchdog should not bark
		3864	};
		3865
		3866	info "emergency_perl_save: leave\n";
		3867	}
		3868
		3869	sub post_cleanup {
		3870	my ($make_core) = @_;
		3871
		3872	IO::AIO::flush;
		3873
		3874	error Carp::longmess "post_cleanup backtrace"
		3875	if $make_core;
		3876
		3877	my $fh = pidfile;
		3878	unlink $PIDFILE if <$fh> == $$;
		3879	}
		3880
		3881	# a safer delete_package, copied from Symbol
		3882	sub clear_package($) {
		3883	my $pkg = shift;
		3884
		3885	# expand to full symbol table name if needed
		3886	unless ($pkg =~ /^main::.*::$/) {
		3887	$pkg = "main$pkg" if $pkg =~ /^::/;
		3888	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3889	$pkg .= '::' unless $pkg =~ /::$/;
		3890	}
		3891
		3892	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3893	my $stem_symtab = *{$stem}{HASH};
		3894
		3895	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3896	or return;
		3897
		3898	# clear all symbols
		3899	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3900	for my $name (keys %$leaf_symtab) {
		3901	_gv_clear *{"$pkg$name"};
		3902	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3903	}
		3904	}
		3905
		3906	sub do_reload_perl() {
1832	# can/must only be called in main	3907	# can/must only be called in main
		3908	if (in_main) {
		3909	error "can only reload from main coroutine";
		3910	return;
		3911	}
		3912
		3913	return if $RELOAD++;
		3914
		3915	my $t1 = AE::time;
		3916
		3917	while ($RELOAD) {
		3918	info "reloading...";
		3919
		3920	trace "entering sync_job";
		3921
		3922	cf::sync_job {
		3923	cf::emergency_save;
		3924
		3925	trace "cancelling all extension coros";
		3926	$_->cancel for values %EXT_CORO;
		3927	%EXT_CORO = ();
		3928
		3929	trace "removing commands";
		3930	%COMMAND = ();
		3931
		3932	trace "removing ext/exti commands";
		3933	%EXTCMD = ();
		3934	%EXTICMD = ();
		3935
		3936	trace "unloading/nuking all extensions";
		3937	for my $pkg (@EXTS) {
		3938	trace "... unloading $pkg";
		3939
		3940	if (my $cb = $pkg->can ("unload")) {
		3941	eval {
		3942	$cb->($pkg);
		3943	1
		3944	} or error "$pkg unloaded, but with errors: $@";
		3945	}
		3946
		3947	trace "... clearing $pkg";
		3948	clear_package $pkg;
		3949	}
		3950
		3951	trace "unloading all perl modules loaded from $LIBDIR";
		3952	while (my ($k, $v) = each %INC) {
		3953	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3954
		3955	trace "... unloading $k";
		3956	delete $INC{$k};
		3957
		3958	$k =~ s/\.pm$//;
		3959	$k =~ s/\//::/g;
		3960
		3961	if (my $cb = $k->can ("unload_module")) {
		3962	$cb->();
		3963	}
		3964
		3965	clear_package $k;
		3966	}
		3967
		3968	trace "getting rid of safe::, as good as possible";
		3969	clear_package "safe::$_"
		3970	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		3971
		3972	trace "unloading cf.pm \"a bit\"";
		3973	delete $INC{"cf.pm"};
		3974	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
		3975
		3976	# don't, removes xs symbols, too,
		3977	# and global variables created in xs
		3978	#clear_package __PACKAGE__;
		3979
		3980	info "unload completed, starting to reload now";
		3981
		3982	trace "reloading cf.pm";
		3983	require cf;
		3984	cf::_connect_to_perl_1;
		3985
		3986	trace "loading config and database again";
		3987	cf::reload_config;
		3988
		3989	trace "loading extensions";
		3990	cf::load_extensions;
		3991
		3992	if ($REATTACH_ON_RELOAD) {
		3993	trace "reattaching attachments to objects/players";
		3994	_global_reattach; # objects, sockets
		3995	trace "reattaching attachments to maps";
		3996	reattach $_ for values %MAP;
		3997	trace "reattaching attachments to players";
		3998	reattach $_ for values %PLAYER;
		3999	}
		4000
		4001	trace "running post_init jobs";
		4002	(pop @POST_INIT)->(1) while @POST_INIT;
		4003
		4004	trace "leaving sync_job";
		4005
		4006	1
		4007	} or do {
		4008	error $@;
		4009	cf::cleanup "error while reloading, exiting.";
		4010	};
		4011
		4012	info "reloaded";
		4013	--$RELOAD;
		4014	}
		4015
		4016	$t1 = AE::time - $t1;
		4017	info "reload completed in ${t1}s\n";
		4018	};
		4019
		4020	our $RELOAD_WATCHER; # used only during reload
		4021
		4022	sub reload_perl() {
		4023	# doing reload synchronously and two reloads happen back-to-back,
		4024	# coro crashes during coro_state_free->destroy here.
		4025
		4026	$RELOAD_WATCHER ||= cf::async {
		4027	Coro::AIO::aio_wait cache_extensions;
		4028
		4029	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4030	do_reload_perl;
		4031	undef $RELOAD_WATCHER;
		4032	};
		4033	};
		4034	}
		4035
		4036	register_command "reload" => sub {
		4037	my ($who, $arg) = @_;
		4038
		4039	if ($who->flag (FLAG_WIZ)) {
		4040	$who->message ("reloading server.");
		4041	async {
		4042	$Coro::current->{desc} = "perl_reload";
		4043	reload_perl;
		4044	};
		4045	}
		4046	};
		4047
		4048	#############################################################################
		4049
		4050	my $bug_warning = 0;
		4051
		4052	our @WAIT_FOR_TICK;
		4053	our @WAIT_FOR_TICK_BEGIN;
		4054
		4055	sub wait_for_tick {
		4056	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4057
		4058	my $signal = new Coro::Signal;
		4059	push @WAIT_FOR_TICK, $signal;
		4060	$signal->wait;
		4061	}
		4062
		4063	sub wait_for_tick_begin {
		4064	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4065
		4066	my $signal = new Coro::Signal;
		4067	push @WAIT_FOR_TICK_BEGIN, $signal;
		4068	$signal->wait;
		4069	}
		4070
		4071	sub tick {
1833	if ($Coro::current != $Coro::main) {	4072	if ($Coro::current != $Coro::main) {
1834	warn "can only reload from main coroutine\n";	4073	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4074	unless ++$bug_warning > 10;
1835	return;	4075	return;
1836	}	4076	}
1837		4077
1838	warn "reloading...";	4078	cf::server_tick; # one server iteration
1839		4079
1840	local $FREEZE = 1;	4080	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
1841	cf::emergency_save;
1842		4081
1843	eval {	4082	if ($NOW >= $NEXT_RUNTIME_WRITE) {
1844	# if anything goes wrong in here, we should simply crash as we already saved	4083	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
1845		4084	Coro::async_pool {
1846	# cancel all watchers	4085	$Coro::current->{desc} = "runtime saver";
1847	for (Event::all_watchers) {	4086	write_runtime_sync
1848	$_->cancel if $_->data & WF_AUTOCANCEL;	4087	or error "ERROR: unable to write runtime file: $!";
1849	}	4088	};
		4089	}
1850		4090
1851	# cancel all extension coros	4091	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
1852	$_->cancel for values %EXT_CORO;	4092	$sig->send;
1853	%EXT_CORO = ();	4093	}
		4094	while (my $sig = shift @WAIT_FOR_TICK) {
		4095	$sig->send;
		4096	}
1854		4097
1855	# unload all extensions	4098	$LOAD = ($NOW - $TICK_START) / $TICK;
1856	for (@exts) {	4099	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
1857	warn "unloading <$_>";
1858	unload_extension $_;
1859	}
1860		4100
1861	# unload all modules loaded from $LIBDIR	4101	if (0) {
1862	while (my ($k, $v) = each %INC) {	4102	if ($NEXT_TICK) {
1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4103	my $jitter = $TICK_START - $NEXT_TICK;
		4104	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4105	debug "jitter $JITTER\n";#d#
		4106	}
		4107	}
		4108	}
1864		4109
1865	warn "removing <$k>";	4110	{
1866	delete $INC{$k};	4111	# configure BDB
1867		4112
1868	$k =~ s/\.pm$//;	4113	BDB::min_parallel 16;
1869	$k =~ s/\//::/g;	4114	BDB::max_poll_reqs $TICK * 0.1;
		4115	$AnyEvent::BDB::WATCHER->priority (1);
1870		4116
1871	if (my $cb = $k->can ("unload_module")) {	4117	unless ($DB_ENV) {
1872	$cb->();	4118	$DB_ENV = BDB::db_env_create;
		4119	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4120	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4121	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4122	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4123	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4124
		4125	cf::sync_job {
		4126	eval {
		4127	BDB::db_env_open
		4128	$DB_ENV,
		4129	$BDBDIR,
		4130	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4131	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4132	0666;
		4133
		4134	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
1873	}	4135	};
1874		4136
1875	Symbol::delete_package $k;	4137	cf::cleanup "db_env_open(db): $@" if $@;
1876	}	4138	};
		4139	}
1877		4140
1878	# sync database to disk	4141	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
1879	cf::db_sync;	4142	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
1880	IO::AIO::flush;
1881
1882	# get rid of safe::, as good as possible
1883	Symbol::delete_package "safe::$_"
1884	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1885
1886	# remove register_script_function callbacks
1887	# TODO
1888
1889	# unload cf.pm "a bit"
1890	delete $INC{"cf.pm"};
1891
1892	# don't, removes xs symbols, too,
1893	# and global variables created in xs
1894	#Symbol::delete_package __PACKAGE__;
1895
1896	# reload cf.pm
1897	warn "reloading cf.pm";
1898	require cf;
1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1900
1901	# load config and database again
1902	cf::cfg_load;
1903	cf::db_load;
1904
1905	# load extensions
1906	warn "load extensions";
1907	cf::load_extensions;
1908
1909	# reattach attachments to objects
1910	warn "reattach";
1911	_global_reattach;
1912	};	4143	};
1913		4144	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
1914	if ($@) {	4145	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
1915	warn $@;
1916	warn "error while reloading, exiting.";
1917	exit 1;
1918	}	4146	};
		4147	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4148	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4149	};
		4150	}
1919		4151
1920	warn "reloaded successfully";	4152	{
1921	};	4153	# configure IO::AIO
1922		4154
1923	#############################################################################	4155	IO::AIO::min_parallel 8;
		4156	IO::AIO::max_poll_time $TICK * 0.1;
		4157	undef $AnyEvent::AIO::WATCHER;
		4158	}
1924		4159
1925	unless ($LINK_MAP) {	4160	my $_log_backtrace;
1926	$LINK_MAP = cf::map::new;
1927		4161
1928	$LINK_MAP->width (41);	4162	sub _log_backtrace {
1929	$LINK_MAP->height (41);	4163	my ($msg, @addr) = @_;
1930	$LINK_MAP->alloc;
1931	$LINK_MAP->path ("{link}");
1932	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1933	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1934		4164
1935	# dirty hack because... archetypes are not yet loaded	4165	$msg =~ s/\n//;
1936	Event->timer (
1937	after => 2,
1938	cb => sub {
1939	$_[0]->w->cancel;
1940		4166
1941	# provide some exits "home"	4167	# limit the # of concurrent backtraces
1942	my $exit = cf::object::new "exit";	4168	if ($_log_backtrace < 2) {
		4169	++$_log_backtrace;
		4170	my $perl_bt = Carp::longmess $msg;
		4171	async {
		4172	$Coro::current->{desc} = "abt $msg";
1943		4173
1944	$exit->slaying ($EMERGENCY_POSITION->[0]);	4174	my @bt = fork_call {
1945	$exit->stats->hp ($EMERGENCY_POSITION->[1]);	4175	@addr = map { sprintf "%x", $_ } @addr;
1946	$exit->stats->sp ($EMERGENCY_POSITION->[2]);	4176	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4177	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4178	or die "addr2line: $!";
1947		4179
1948	$LINK_MAP->insert ($exit->clone, 19, 19);	4180	my @funcs;
1949	$LINK_MAP->insert ($exit->clone, 19, 20);	4181	my @res = <$fh>;
1950	$LINK_MAP->insert ($exit->clone, 19, 21);	4182	chomp for @res;
1951	$LINK_MAP->insert ($exit->clone, 20, 19);	4183	while (@res) {
1952	$LINK_MAP->insert ($exit->clone, 20, 21);	4184	my ($func, $line) = splice @res, 0, 2, ();
1953	$LINK_MAP->insert ($exit->clone, 21, 19);	4185	push @funcs, "[$func] $line";
1954	$LINK_MAP->insert ($exit->clone, 21, 20);	4186	}
1955	$LINK_MAP->insert ($exit->clone, 21, 21);
1956		4187
1957	$exit->destroy;	4188	@funcs
		4189	};
		4190
		4191	LOG llevInfo, "[ABT] $perl_bt\n";
		4192	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4193	LOG llevInfo, "[ABT] $_\n" for @bt;
		4194	--$_log_backtrace;
1958	});	4195	};
1959		4196	} else {
1960	$LINK_MAP->{deny_save} = 1;	4197	LOG llevInfo, "[ABT] $msg\n";
1961	$LINK_MAP->{deny_reset} = 1;	4198	LOG llevInfo, "[ABT] [suppressed]\n";
1962
1963	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1964	}
1965
1966	register "<global>", __PACKAGE__;
1967
1968	register_command "perl-reload" => sub {
1969	my ($who, $arg) = @_;
1970
1971	if ($who->flag (FLAG_WIZ)) {
1972	$who->message ("start of reload.");
1973	perl_reload;
1974	$who->message ("end of reload.");
1975	}
1976	};
1977
1978	unshift @INC, $LIBDIR;
1979
1980	$TICK_WATCHER = Event->timer (
1981	reentrant => 0,
1982	prio => 0,
1983	at => $NEXT_TICK || $TICK,
1984	data => WF_AUTOCANCEL,
1985	cb => sub {
1986	unless ($FREEZE) {
1987	cf::server_tick; # one server iteration
1988	$RUNTIME += $TICK;
1989	}
1990
1991	$NEXT_TICK += $TICK;
1992
1993	# if we are delayed by four ticks or more, skip them all
1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1995
1996	$TICK_WATCHER->at ($NEXT_TICK);
1997	$TICK_WATCHER->start;
1998	},	4199	}
1999	);	4200	}
2000		4201
2001	IO::AIO::max_poll_time $TICK * 0.2;	4202	# load additional modules
		4203	require "cf/$_.pm" for @EXTRA_MODULES;
		4204	cf::_connect_to_perl_2;
2002		4205
2003	Event->io (	4206	END { cf::emergency_save }
2004	fd => IO::AIO::poll_fileno,
2005	poll => 'r',
2006	prio => 5,
2007	data => WF_AUTOCANCEL,
2008	cb => \&IO::AIO::poll_cb,
2009	);
2010
2011	Event->timer (
2012	data => WF_AUTOCANCEL,
2013	after => 0,
2014	interval => 10,
2015	cb => sub {
2016	(Coro::unblock_sub {
2017	write_runtime
2018	or warn "ERROR: unable to write runtime file: $!";
2019	})->();
2020	},
2021	);
2022		4207
2023	1	4208	1
2024		4209

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