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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.131 by root, Thu Jan 4 00:53:54 2007 UTC vs.
Revision 1.539 by root, Tue May 4 22:49:21 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
34		80
35	our %COMMAND = ();	81	our %COMMAND = ();
36	our %COMMAND_TIME = ();	82	our %COMMAND_TIME = ();
		83
		84	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	85	our %EXTCMD = ();
		86	our %EXTICMD = ();
		87	our %EXT_CORO = (); # coroutines bound to extensions
		88	our %EXT_MAP = (); # pluggable maps
38		89
		90	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	91	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	92	our @REFLECT; # set by XS
		93	our %REFLECT; # set by us
41		94
42	our $TICK = MAX_TIME * 1e-6;	95	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	96	our $DATADIR = datadir;
		97	our $LIBDIR = "$DATADIR/ext";
		98	our $PODDIR = "$DATADIR/pod";
		99	our $MAPDIR = "$DATADIR/" . mapdir;
		100	our $LOCALDIR = localdir;
		101	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		102	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		103	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		104	our $RANDOMDIR = "$LOCALDIR/random";
		105	our $BDBDIR = "$LOCALDIR/db";
		106	our $PIDFILE = "$LOCALDIR/pid";
		107	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		108
		109	our %RESOURCE; # unused
		110
		111	our $OUTPUT_RATE_MIN = 3000;
		112	our $OUTPUT_RATE_MAX = 1000000;
		113
		114	our $MAX_LINKS = 32; # how many chained exits to follow
		115	our $VERBOSE_IO = 1;
		116
		117	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		118	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	119	our $NEXT_TICK;
45	our $NOW;	120	our $USE_FSYNC = 1; # use fsync to write maps - default on
		121
		122	our $BDB_DEADLOCK_WATCHER;
		123	our $BDB_CHECKPOINT_WATCHER;
		124	our $BDB_TRICKLE_WATCHER;
		125	our $DB_ENV;
		126
		127	our @EXTRA_MODULES = qw(pod match mapscript);
46		128
47	our %CFG;	129	our %CFG;
48		130
49	our $UPTIME; $UPTIME ||= time;	131	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	132	our $RUNTIME;
		133	our $NOW;
51		134
52	our %MAP; # all maps	135	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	136	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	137	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	138
56	our %EXT_CORO;	139	# used to convert map paths into valid unix filenames by replacing / by ∕
		140	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		141
		142	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		143	our $LOADAVG; # same thing, but with alpha-smoothing
		144	our $JITTER; # average jitter
		145	our $TICK_START; # for load detecting purposes
		146
		147	our @POST_INIT;
		148
		149	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		150	our $REALLY_UNLOOP; # never set to true, please :)
57		151
58	binmode STDOUT;	152	binmode STDOUT;
59	binmode STDERR;	153	binmode STDERR;
60		154
61	# read virtual server time, if available	155	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	156	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	157	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	158	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	159	$RUNTIME = <$fh> + 0.;
66	}	160	}
67		161
68	mkdir cf::localdir;	162	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		163
74	# a special map that is always available	164	mkdir $_
75	our $LINK_MAP;	165	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		166
76	our $EMERGENCY_POSITION;	167	our $EMERGENCY_POSITION;
		168
		169	sub cf::map::normalise;
		170
		171	sub in_main() {
		172	$Coro::current == $Coro::main
		173	}
		174
		175	#############################################################################
		176
		177	%REFLECT = ();
		178	for (@REFLECT) {
		179	my $reflect = JSON::XS::decode_json $_;
		180	$REFLECT{$reflect->{class}} = $reflect;
		181	}
		182
		183	# this is decidedly evil
		184	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
77		185
78	#############################################################################	186	#############################################################################
79		187
80	=head2 GLOBAL VARIABLES	188	=head2 GLOBAL VARIABLES
81		189
…		…
88	=item $cf::RUNTIME	196	=item $cf::RUNTIME
89		197
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	198	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	199	every server tick.
92		200
93	=item $cf::LIBDIR	201	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		202	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		203	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		204
95	The perl library directory, where extensions and cf-specific modules can	205	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	206	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		207	unique-items directory, player file directory, random maps directory and
		208	database environment.
97		209
98	=item $cf::NOW	210	=item $cf::NOW
99		211
100	The time of the last (current) server tick.	212	The time of the last (current) server tick.
101		213
102	=item $cf::TICK	214	=item $cf::TICK
103		215
104	The interval between server ticks, in seconds.	216	The interval between server ticks, in seconds.
105		217
		218	=item $cf::LOADAVG
		219
		220	The current CPU load on the server (alpha-smoothed), as a value between 0
		221	(none) and 1 (overloaded), indicating how much time is spent on processing
		222	objects per tick. Healthy values are < 0.5.
		223
		224	=item $cf::LOAD
		225
		226	The raw value load value from the last tick.
		227
106	=item %cf::CFG	228	=item %cf::CFG
107		229
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	230	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	231	from wherever your confdir points to.
110		232
		233	=item cf::wait_for_tick, cf::wait_for_tick_begin
		234
		235	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		236	returns directly I<after> the tick processing (and consequently, can only wake one process
		237	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		238
		239	=item @cf::INVOKE_RESULTS
		240
		241	This array contains the results of the last C<invoke ()> call. When
		242	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		243	that call.
		244
		245	=item %cf::REFLECT
		246
		247	Contains, for each (C++) class name, a hash reference with information
		248	about object members (methods, scalars, arrays and flags) and other
		249	metadata, which is useful for introspection.
		250
111	=back	251	=back
112		252
113	=cut	253	=cut
114		254
115	BEGIN {	255	sub error(@) { LOG llevError, join "", @_ }
116	*CORE::GLOBAL::warn = sub {	256	sub warn (@) { LOG llevWarn , join "", @_ }
		257	sub info (@) { LOG llevInfo , join "", @_ }
		258	sub debug(@) { LOG llevDebug, join "", @_ }
		259	sub trace(@) { LOG llevTrace, join "", @_ }
		260
		261	$Coro::State::WARNHOOK = sub {
117	my $msg = join "", @_;	262	my $msg = join "", @_;
118	utf8::encode $msg;
119		263
120	$msg .= "\n"	264	$msg .= "\n"
121	unless $msg =~ /\n$/;	265	unless $msg =~ /\n$/;
122		266
123	LOG llevError, "cfperl: $msg";	267	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
124	};	268
125	}	269	LOG llevWarn, $msg;
		270	};
		271
		272	$Coro::State::DIEHOOK = sub {
		273	return unless $^S eq 0; # "eq", not "=="
		274
		275	error Carp::longmess $_[0];
		276
		277	if (in_main) {#d#
		278	error "DIEHOOK called in main context, Coro bug?\n";#d#
		279	return;#d#
		280	}#d#
		281
		282	# kill coroutine otherwise
		283	Coro::terminate
		284	};
126		285
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	286	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	287	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	288	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	289	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	290	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		291	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	292	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		293
134	# we bless all objects into (empty) derived classes to force a method lookup	294	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	295	# within the Safe compartment.
136	for my $pkg (qw(	296	for my $pkg (qw(
137	cf::global cf::attachable	297	cf::global cf::attachable
138	cf::object cf::object::player	298	cf::object cf::object::player
139	cf::client cf::player	299	cf::client cf::player
140	cf::arch cf::living	300	cf::arch cf::living
		301	cf::map cf::mapspace
141	cf::map cf::party cf::region	302	cf::party cf::region
142	)) {	303	)) {
143	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	304	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	305	}
146		306
147	$Event::DIED = sub {	307	$EV::DIED = sub {
148	warn "error in event callback: @_";	308	Carp::cluck "error in event callback: @_";
149	};	309	};
150		310
151	my %ext_pkg;	311	#############################################################################
152	my @exts;
153	my @hook;
154		312
155	=head2 UTILITY FUNCTIONS	313	=head2 UTILITY FUNCTIONS
156		314
157	=over 4	315	=over 4
158		316
159	=cut	317	=item dumpval $ref
160		318
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	319	=cut
162		320
		321	sub dumpval {
		322	eval {
		323	local $SIG{__DIE__};
		324	my $d;
		325	if (1) {
		326	$d = new Data::Dumper([$_[0]], ["*var"]);
		327	$d->Terse(1);
		328	$d->Indent(2);
		329	$d->Quotekeys(0);
		330	$d->Useqq(1);
		331	#$d->Bless(...);
		332	$d->Seen($_[1]) if @_ > 1;
		333	$d = $d->Dump();
		334	}
		335	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		336	$d
		337	} || "[unable to dump $_[0]: '$@']";
		338	}
		339
163	=item $ref = cf::from_json $json	340	=item $ref = cf::decode_json $json
164		341
165	Converts a JSON string into the corresponding perl data structure.	342	Converts a JSON string into the corresponding perl data structure.
166		343
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	344	=item $json = cf::encode_json $ref
175		345
176	Converts a perl data structure into its JSON representation.	346	Converts a perl data structure into its JSON representation.
177		347
178	=cut	348	=cut
179		349
180	sub to_json($) {	350	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		351
185	=item my $guard = cf::guard { BLOCK }	352	sub encode_json($) { $json_coder->encode ($_[0]) }
		353	sub decode_json($) { $json_coder->decode ($_[0]) }
186		354
187	Run the given callback when the guard object gets destroyed (useful for	355	=item cf::post_init { BLOCK }
188	coroutine cancellations).
189		356
190	You can call C<< ->cancel >> on the guard object to stop the block from	357	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
191	being executed.	358	but I<before> the server starts ticking again.
192		359
193	=cut	360	The cdoeblock will have a single boolean argument to indicate whether this
		361	is a reload or not.
194		362
195	sub guard(&) {	363	=cut
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198		364
199	sub cf::guard::cancel {	365	sub post_init(&) {
200	${$_[0]} = sub { };	366	push @POST_INIT, shift;
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}	367	}
206		368
207	=item cf::lock_wait $string	369	=item cf::lock_wait $string
208		370
209	Wait until the given lock is available. See cf::lock_acquire.	371	Wait until the given lock is available. See cf::lock_acquire.
210		372
211	=item my $lock = cf::lock_acquire $string	373	=item my $lock = cf::lock_acquire $string
212		374
213	Wait until the given lock is available and then acquires it and returns	375	Wait until the given lock is available and then acquires it and returns
214	a guard object. If the guard object gets destroyed (goes out of scope,	376	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	377	for example when the coroutine gets canceled), the lock is automatically
216	returned.	378	returned.
217		379
		380	Locks are *not* recursive, locking from the same coro twice results in a
		381	deadlocked coro.
		382
218	Lock names should begin with a unique identifier (for example, find_map	383	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	384	uses map_find and cf::map::load uses map_load).
220		385
221	=cut	386	=item $locked = cf::lock_active $string
222		387
223	our %LOCK;	388	Return true if the lock is currently active, i.e. somebody has locked it.
		389
		390	=cut
		391
		392	our $LOCKS = new Coro::SemaphoreSet;
224		393
225	sub lock_wait($) {	394	sub lock_wait($) {
226	my ($key) = @_;	395	$LOCKS->wait ($_[0]);
227
228	# wait for lock, if any
229	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;
232	}
233	}	396	}
234		397
235	sub lock_acquire($) {	398	sub lock_acquire($) {
236	my ($key) = @_;	399	$LOCKS->guard ($_[0])
		400	}
237		401
238	# wait, to be sure we are not locked	402	sub lock_active($) {
239	lock_wait $key;	403	$LOCKS->count ($_[0]) < 1
		404	}
240		405
241	$LOCK{$key} = [];	406	sub freeze_mainloop {
		407	tick_inhibit_inc;
242		408
243	cf::guard {	409	&Guard::guard (\&tick_inhibit_dec);
244	# wake up all waiters, to be on the safe side	410	}
245	$_->ready for @{ delete $LOCK{$key} };	411
		412	=item cf::periodic $interval, $cb
		413
		414	Like EV::periodic, but randomly selects a starting point so that the actions
		415	get spread over time.
		416
		417	=cut
		418
		419	sub periodic($$) {
		420	my ($interval, $cb) = @_;
		421
		422	my $start = rand List::Util::min 180, $interval;
		423
		424	EV::periodic $start, $interval, 0, $cb
		425	}
		426
		427	=item cf::get_slot $time[, $priority[, $name]]
		428
		429	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		430	This call blocks and returns only when you have at least C<$time> seconds
		431	of cpu time till the next tick. The slot is only valid till the next cede.
		432
		433	The optional C<$name> can be used to identify the job to run. It might be
		434	used for statistical purposes and should identify the same time-class.
		435
		436	Useful for short background jobs.
		437
		438	=cut
		439
		440	our @SLOT_QUEUE;
		441	our $SLOT_QUEUE;
		442	our $SLOT_DECAY = 0.9;
		443
		444	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		445	$SLOT_QUEUE = Coro::async {
		446	$Coro::current->desc ("timeslot manager");
		447
		448	my $signal = new Coro::Signal;
		449	my $busy;
		450
		451	while () {
		452	next_job:
		453
		454	my $avail = cf::till_tick;
		455
		456	for (0 .. $#SLOT_QUEUE) {
		457	if ($SLOT_QUEUE[$_][0] <= $avail) {
		458	$busy = 0;
		459	my $job = splice @SLOT_QUEUE, $_, 1, ();
		460	$job->[2]->send;
		461	Coro::cede;
		462	goto next_job;
		463	} else {
		464	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		465	}
		466	}
		467
		468	if (@SLOT_QUEUE) {
		469	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		470	push @cf::WAIT_FOR_TICK, $signal;
		471	$signal->wait;
		472	} else {
		473	$busy = 0;
		474	Coro::schedule;
		475	}
246	}	476	}
		477	};
		478
		479	sub get_slot($;$$) {
		480	return if tick_inhibit || $Coro::current == $Coro::main;
		481
		482	my ($time, $pri, $name) = @_;
		483
		484	$time = clamp $time, 0.01, $TICK * .6;
		485
		486	my $sig = new Coro::Signal;
		487
		488	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		489	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		490	$SLOT_QUEUE->ready;
		491	$sig->wait;
247	}	492	}
248		493
249	=item cf::async { BLOCK }	494	=item cf::async { BLOCK }
250		495
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	496	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	497	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		498	thing you are allowed to do is call C<prio> on it.
253		499
254	=cut	500	=cut
255		501
256	sub async(&) {	502	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		503
265	=item cf::sync_job { BLOCK }	504	=item cf::sync_job { BLOCK }
266		505
267	The design of crossfire+ requires that the main coro ($Coro::main) is	506	The design of Deliantra requires that the main coroutine ($Coro::main)
268	always able to handle events or runnable, as crossfire+ is only partly	507	is always able to handle events or runnable, as Deliantra is only
269	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	508	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		509	acceptable.
270		510
271	If it must be done, put the blocking parts into C<sync_job>. This will run	511	If it must be done, put the blocking parts into C<sync_job>. This will run
272	the given BLOCK in another coroutine while waiting for the result. The	512	the given BLOCK in another coroutine while waiting for the result. The
273	server will be frozen during this time, so the block should either finish	513	server will be frozen during this time, so the block should either finish
274	fast or be very important.	514	fast or be very important.
…		…
276	=cut	516	=cut
277		517
278	sub sync_job(&) {	518	sub sync_job(&) {
279	my ($job) = @_;	519	my ($job) = @_;
280		520
281	if ($Coro::current == $Coro::main) {	521	if (in_main) {
		522	my $time = AE::time;
		523
282	# this is the main coro, too bad, we have to block	524	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	525	# till the operation succeeds, freezing the server :/
284		526
285	# TODO: use suspend/resume instead	527	#LOG llevError, Carp::longmess "sync job";#d#
286	# (but this is cancel-safe)	528
287	local $FREEZE = 1;	529	my $freeze_guard = freeze_mainloop;
288		530
289	my $busy = 1;	531	my $busy = 1;
290	my @res;	532	my @res;
291		533
292	(Coro::async {	534	(async {
		535	$Coro::current->desc ("sync job coro");
293	@res = eval { $job->() };	536	@res = eval { $job->() };
294	warn $@ if $@;	537	error $@ if $@;
295	undef $busy;	538	undef $busy;
296	})->prio (Coro::PRIO_MAX);	539	})->prio (Coro::PRIO_MAX);
297		540
298	while ($busy) {	541	while ($busy) {
		542	if (Coro::nready) {
299	Coro::cede_notself;	543	Coro::cede_notself;
300	Event::one_event unless Coro::nready;	544	} else {
		545	EV::loop EV::LOOP_ONESHOT;
301	}	546	}
		547	}
		548
		549	my $time = AE::time - $time;
		550
		551	$TICK_START += $time; # do not account sync jobs to server load
302		552
303	wantarray ? @res : $res[0]	553	wantarray ? @res : $res[0]
304	} else {	554	} else {
305	# we are in another coroutine, how wonderful, everything just works	555	# we are in another coroutine, how wonderful, everything just works
306		556
307	$job->()	557	$job->()
308	}	558	}
309	}	559	}
310		560
311	=item $coro = cf::coro { BLOCK }	561	=item $coro = cf::async_ext { BLOCK }
312		562
313	Creates and returns a new coro. This coro is automcatially being canceled	563	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	564	extension calling this is being unloaded.
315		565
316	=cut	566	=cut
317		567
318	sub coro(&) {	568	sub async_ext(&) {
319	my $cb = shift;	569	my $cb = shift;
320		570
321	my $coro = &cf::async ($cb);	571	my $coro = &Coro::async ($cb);
322		572
323	$coro->on_destroy (sub {	573	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	574	delete $EXT_CORO{$coro+0};
325	});	575	});
326	$EXT_CORO{$coro+0} = $coro;	576	$EXT_CORO{$coro+0} = $coro;
327		577
328	$coro	578	$coro
329	}	579	}
330		580
331	sub write_runtime {	581	=item fork_call { }, $args
332	my $runtime = cf::localdir . "/runtime";
333		582
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	583	Executes the given code block with the given arguments in a seperate
335	or return;	584	process, returning the results. Everything must be serialisable with
		585	Coro::Storable. May, of course, block. Note that the executed sub may
		586	never block itself or use any form of event handling.
336		587
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	588	=cut
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;
340		589
341	aio_fsync $fh	590	sub fork_call(&@) {
342	and return;	591	my ($cb, @args) = @_;
343		592
344	close $fh	593	# we seemingly have to make a local copy of the whole thing,
345	or return;	594	# otherwise perl prematurely frees the stuff :/
		595	# TODO: investigate and fix (likely this will be rather laborious)
346		596
347	aio_rename "$runtime~", $runtime	597	my @res = Coro::Util::fork_eval {
348	and return;	598	reset_signals;
		599	&$cb
		600	}, @args;
349		601
		602	wantarray ? @res : $res[-1]
		603	}
		604
		605	sub objinfo {
350	1	606	(
		607	"counter value" => cf::object::object_count,
		608	"objects created" => cf::object::create_count,
		609	"objects destroyed" => cf::object::destroy_count,
		610	"freelist size" => cf::object::free_count,
		611	"allocated objects" => cf::object::objects_size,
		612	"active objects" => cf::object::actives_size,
		613	)
		614	}
		615
		616	=item $coin = coin_from_name $name
		617
		618	=cut
		619
		620	our %coin_alias = (
		621	"silver" => "silvercoin",
		622	"silvercoin" => "silvercoin",
		623	"silvercoins" => "silvercoin",
		624	"gold" => "goldcoin",
		625	"goldcoin" => "goldcoin",
		626	"goldcoins" => "goldcoin",
		627	"platinum" => "platinacoin",
		628	"platinumcoin" => "platinacoin",
		629	"platinumcoins" => "platinacoin",
		630	"platina" => "platinacoin",
		631	"platinacoin" => "platinacoin",
		632	"platinacoins" => "platinacoin",
		633	"royalty" => "royalty",
		634	"royalties" => "royalty",
		635	);
		636
		637	sub coin_from_name($) {
		638	$coin_alias{$_[0]}
		639	? cf::arch::find $coin_alias{$_[0]}
		640	: undef
		641	}
		642
		643	=item $value = cf::db_get $family => $key
		644
		645	Returns a single value from the environment database.
		646
		647	=item cf::db_put $family => $key => $value
		648
		649	Stores the given C<$value> in the family. It can currently store binary
		650	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		651
		652	=item $db = cf::db_table "name"
		653
		654	Create and/or open a new database table. The string must not be "db" and must be unique
		655	within each server.
		656
		657	=cut
		658
		659	sub db_table($) {
		660	cf::error "db_get called from main context"
		661	if $Coro::current == $Coro::main;
		662
		663	my ($name) = @_;
		664	my $db = BDB::db_create $DB_ENV;
		665
		666	eval {
		667	$db->set_flags (BDB::CHKSUM);
		668
		669	utf8::encode $name;
		670	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		671	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		672	cf::cleanup "db_open(db): $!" if $!;
		673	};
		674	cf::cleanup "db_open(db): $@" if $@;
		675
		676	$db
		677	}
		678
		679	our $DB;
		680
		681	sub db_init {
		682	$DB ||= db_table "db";
		683	}
		684
		685	sub db_get($$) {
		686	my $key = "$_[0]/$_[1]";
		687
		688	cf::error "db_get called from main context"
		689	if $Coro::current == $Coro::main;
		690
		691	BDB::db_get $DB, undef, $key, my $data;
		692
		693	$! ? ()
		694	: $data
		695	}
		696
		697	sub db_put($$$) {
		698	BDB::dbreq_pri 4;
		699	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		700	}
		701
		702	=item cf::cache $id => [$paths...], $processversion => $process
		703
		704	Generic caching function that returns the value of the resource $id,
		705	caching and regenerating as required.
		706
		707	This function can block.
		708
		709	=cut
		710
		711	sub cache {
		712	my ($id, $src, $processversion, $process) = @_;
		713
		714	my $meta =
		715	join "\x00",
		716	$processversion,
		717	map {
		718	aio_stat $_
		719	and Carp::croak "$_: $!";
		720
		721	($_, (stat _)[7,9])
		722	} @$src;
		723
		724	my $dbmeta = db_get cache => "$id/meta";
		725	if ($dbmeta ne $meta) {
		726	# changed, we may need to process
		727
		728	my @data;
		729	my $md5;
		730
		731	for (0 .. $#$src) {
		732	0 <= aio_load $src->[$_], $data[$_]
		733	or Carp::croak "$src->[$_]: $!";
		734	}
		735
		736	# if processing is expensive, check
		737	# checksum first
		738	if (1) {
		739	$md5 =
		740	join "\x00",
		741	$processversion,
		742	map {
		743	cf::cede_to_tick;
		744	($src->[$_], Digest::MD5::md5_hex $data[$_])
		745	} 0.. $#$src;
		746
		747
		748	my $dbmd5 = db_get cache => "$id/md5";
		749	if ($dbmd5 eq $md5) {
		750	db_put cache => "$id/meta", $meta;
		751
		752	return db_get cache => "$id/data";
		753	}
		754	}
		755
		756	my $t1 = Time::HiRes::time;
		757	my $data = $process->(\@data);
		758	my $t2 = Time::HiRes::time;
		759
		760	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		761
		762	db_put cache => "$id/data", $data;
		763	db_put cache => "$id/md5" , $md5;
		764	db_put cache => "$id/meta", $meta;
		765
		766	return $data;
		767	}
		768
		769	db_get cache => "$id/data"
		770	}
		771
		772	=item cf::datalog type => key => value, ...
		773
		774	Log a datalog packet of the given type with the given key-value pairs.
		775
		776	=cut
		777
		778	sub datalog($@) {
		779	my ($type, %kv) = @_;
		780	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
351	}	781	}
352		782
353	=back	783	=back
354		784
355	=cut	785	=cut
356		786
357	#############################################################################	787	#############################################################################
358		788
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476
477	#############################################################################
478
479	=head2 ATTACHABLE OBJECTS	789	=head2 ATTACHABLE OBJECTS
480		790
481	Many objects in crossfire are so-called attachable objects. That means you can	791	Many objects in deliantra are so-called attachable objects. That means you can
482	attach callbacks/event handlers (a collection of which is called an "attachment")	792	attach callbacks/event handlers (a collection of which is called an "attachment")
483	to it. All such attachable objects support the following methods.	793	to it. All such attachable objects support the following methods.
484		794
485	In the following description, CLASS can be any of C<global>, C<object>	795	In the following description, CLASS can be any of C<global>, C<object>
486	C<player>, C<client> or C<map> (i.e. the attachable objects in	796	C<player>, C<client> or C<map> (i.e. the attachable objects in
487	crossfire+).	797	Deliantra).
488		798
489	=over 4	799	=over 4
490		800
491	=item $attachable->attach ($attachment, key => $value...)	801	=item $attachable->attach ($attachment, key => $value...)
492		802
…		…
536	=item cf::CLASS::attachment $name, ...	846	=item cf::CLASS::attachment $name, ...
537		847
538	Register an attachment by C<$name> through which attachable objects of the	848	Register an attachment by C<$name> through which attachable objects of the
539	given CLASS can refer to this attachment.	849	given CLASS can refer to this attachment.
540		850
541	Some classes such as crossfire maps and objects can specify attachments	851	Some classes such as deliantra maps and objects can specify attachments
542	that are attached at load/instantiate time, thus the need for a name.	852	that are attached at load/instantiate time, thus the need for a name.
543		853
544	These calls expect any number of the following handler/hook descriptions:	854	These calls expect any number of the following handler/hook descriptions:
545		855
546	=over 4	856	=over 4
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	916	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	917	our @CB_MAP = ();
608		918
609	my %attachment;	919	my %attachment;
610		920
		921	sub cf::attachable::thawer_merge {
		922	# simply override everything except _meta
		923	local $_[0]{_meta};
		924	%{$_[0]} = %{$_[1]};
		925	}
		926
611	sub _attach_cb($$$$) {	927	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	928	my ($registry, $event, $prio, $cb) = @_;
613		929
614	use sort 'stable';	930	use sort 'stable';
615		931
…		…
649	$registry = $CB_TYPE[$object_type] ||= [];	965	$registry = $CB_TYPE[$object_type] ||= [];
650		966
651	} elsif ($type eq "subtype") {	967	} elsif ($type eq "subtype") {
652	defined $object_type or Carp::croak "subtype specified without type";	968	defined $object_type or Carp::croak "subtype specified without type";
653	my $object_subtype = shift @arg;	969	my $object_subtype = shift @arg;
654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	970	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655		971
656	} elsif ($type eq "package") {	972	} elsif ($type eq "package") {
657	my $pkg = shift @arg;	973	my $pkg = shift @arg;
658		974
659	while (my ($name, $id) = each %cb_id) {	975	while (my ($name, $id) = each %cb_id) {
…		…
664		980
665	} elsif (exists $cb_id{$type}) {	981	} elsif (exists $cb_id{$type}) {
666	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	982	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
667		983
668	} elsif (ref $type) {	984	} elsif (ref $type) {
669	warn "attaching objects not supported, ignoring.\n";	985	error "attaching objects not supported, ignoring.\n";
670		986
671	} else {	987	} else {
672	shift @arg;	988	shift @arg;
673	warn "attach argument '$type' not supported, ignoring.\n";	989	error "attach argument '$type' not supported, ignoring.\n";
674	}	990	}
675	}	991	}
676	}	992	}
677		993
678	sub _object_attach {	994	sub _object_attach {
…		…
688	_attach $registry, $klass, @attach;	1004	_attach $registry, $klass, @attach;
689	}	1005	}
690		1006
691	$obj->{$name} = \%arg;	1007	$obj->{$name} = \%arg;
692	} else {	1008	} else {
693	warn "object uses attachment '$name' that is not available, postponing.\n";	1009	info "object uses attachment '$name' which is not available, postponing.\n";
694	}	1010	}
695		1011
696	$obj->{_attachment}{$name} = undef;	1012	$obj->{_attachment}{$name} = undef;
697	}	1013	}
698		1014
…		…
700	if (ref $_[0]) {	1016	if (ref $_[0]) {
701	_object_attach @_;	1017	_object_attach @_;
702	} else {	1018	} else {
703	_attach shift->_attach_registry, @_;	1019	_attach shift->_attach_registry, @_;
704	}	1020	}
		1021	_recalc_want;
705	};	1022	};
706		1023
707	# all those should be optimised	1024	# all those should be optimised
708	sub cf::attachable::detach {	1025	sub cf::attachable::detach {
709	my ($obj, $name) = @_;	1026	my ($obj, $name) = @_;
…		…
712	delete $obj->{_attachment}{$name};	1029	delete $obj->{_attachment}{$name};
713	reattach ($obj);	1030	reattach ($obj);
714	} else {	1031	} else {
715	Carp::croak "cannot, currently, detach class attachments";	1032	Carp::croak "cannot, currently, detach class attachments";
716	}	1033	}
		1034	_recalc_want;
717	};	1035	};
718		1036
719	sub cf::attachable::attached {	1037	sub cf::attachable::attached {
720	my ($obj, $name) = @_;	1038	my ($obj, $name) = @_;
721		1039
…		…
736	";	1054	";
737	die if $@;	1055	die if $@;
738	}	1056	}
739		1057
740	our $override;	1058	our $override;
741	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1059	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
742		1060
743	sub override {	1061	sub override {
744	$override = 1;	1062	$override = 1;
745	@invoke_results = ();	1063	@INVOKE_RESULTS = (@_);
746	}	1064	}
747		1065
748	sub do_invoke {	1066	sub do_invoke {
749	my $event = shift;	1067	my $event = shift;
750	my $callbacks = shift;	1068	my $callbacks = shift;
751		1069
752	@invoke_results = ();	1070	@INVOKE_RESULTS = ();
753		1071
754	local $override;	1072	local $override;
755		1073
756	for (@$callbacks) {	1074	for (@$callbacks) {
757	eval { &{$_->[1]} };	1075	eval { &{$_->[1]} };
758		1076
759	if ($@) {	1077	if ($@) {
760	warn "$@";
761	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1078	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
762	override;	1079	override;
763	}	1080	}
764		1081
765	return 1 if $override;	1082	return 1 if $override;
766	}	1083	}
767		1084
768	0	1085	0
769	}	1086	}
770		1087
771	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1088	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
772		1089
773	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1090	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
774		1091
775	Generate an object-specific event with the given arguments.	1092	Generate an object-specific event with the given arguments.
776		1093
777	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1094	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
778	removed in future versions), and there is no public API to access override	1095	removed in future versions), and there is no public API to access override
779	results (if you must, access C<@cf::invoke_results> directly).	1096	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
780		1097
781	=back	1098	=back
782		1099
783	=cut	1100	=cut
784		1101
785	#############################################################################	1102	#############################################################################
786	# object support	1103	# object support
		1104
		1105	sub _object_equal($$);
		1106	sub _object_equal($$) {
		1107	my ($a, $b) = @_;
		1108
		1109	return 0 unless (ref $a) eq (ref $b);
		1110
		1111	if ("HASH" eq ref $a) {
		1112	my @ka = keys %$a;
		1113	my @kb = keys %$b;
		1114
		1115	return 0 if @ka != @kb;
		1116
		1117	for (0 .. $#ka) {
		1118	return 0 unless $ka[$_] eq $kb[$_];
		1119	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1120	}
		1121
		1122	} elsif ("ARRAY" eq ref $a) {
		1123
		1124	return 0 if @$a != @$b;
		1125
		1126	for (0 .. $#$a) {
		1127	return 0 unless _object_equal $a->[$_], $b->[$_];
		1128	}
		1129
		1130	} elsif ($a ne $b) {
		1131	return 0;
		1132	}
		1133
		1134	1
		1135	}
		1136
		1137	our $SLOW_MERGES;#d#
		1138	sub _can_merge {
		1139	my ($ob1, $ob2) = @_;
		1140
		1141	++$SLOW_MERGES;#d#
		1142
		1143	# we do the slow way here
		1144	return _object_equal $ob1, $ob2
		1145	}
787		1146
788	sub reattach {	1147	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	1148	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	1149	my ($obj) = @_;
		1150
		1151	# no longer needed after getting rid of delete_package?
		1152	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		1153
792	my $registry = $obj->registry;	1154	my $registry = $obj->registry;
793		1155
794	@$registry = ();	1156	@$registry = ();
795		1157
…		…
800	for (@$attach) {	1162	for (@$attach) {
801	my ($klass, @attach) = @$_;	1163	my ($klass, @attach) = @$_;
802	_attach $registry, $klass, @attach;	1164	_attach $registry, $klass, @attach;
803	}	1165	}
804	} else {	1166	} else {
805	warn "object uses attachment '$name' that is not available, postponing.\n";	1167	info "object uses attachment '$name' that is not available, postponing.\n";
806	}	1168	}
807	}	1169	}
808	}	1170	}
809		1171
810	cf::attachable->attach (	1172	cf::attachable->attach (
811	prio => -1000000,	1173	prio => -1000000,
812	on_instantiate => sub {	1174	on_instantiate => sub {
813	my ($obj, $data) = @_;	1175	my ($obj, $data) = @_;
814		1176
815	$data = from_json $data;	1177	$data = decode_json $data;
816		1178
817	for (@$data) {	1179	for (@$data) {
818	my ($name, $args) = @$_;	1180	my ($name, $args) = @$_;
819		1181
820	$obj->attach ($name, %{$args || {} });	1182	$obj->attach ($name, %{$args || {} });
…		…
836	sub object_freezer_save {	1198	sub object_freezer_save {
837	my ($filename, $rdata, $objs) = @_;	1199	my ($filename, $rdata, $objs) = @_;
838		1200
839	sync_job {	1201	sync_job {
840	if (length $$rdata) {	1202	if (length $$rdata) {
		1203	utf8::decode (my $decname = $filename);
841	warn sprintf "saving %s (%d,%d)\n",	1204	trace sprintf "saving %s (%d,%d)\n",
842	$filename, length $$rdata, scalar @$objs;	1205	$decname, length $$rdata, scalar @$objs
		1206	if $VERBOSE_IO;
843		1207
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1208	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	1209	aio_chmod $fh, SAVE_MODE;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1210	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1211	if ($cf::USE_FSYNC) {
		1212	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;
847	aio_fsync $fh;	1213	aio_fsync $fh;
		1214	}
848	close $fh;	1215	aio_close $fh;
849		1216
850	if (@$objs) {	1217	if (@$objs) {
851	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1218	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1219	aio_chmod $fh, SAVE_MODE;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	1220	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	1221	aio_write $fh, 0, (length $data), $data, 0;
		1222	if ($cf::USE_FSYNC) {
		1223	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;
855	aio_fsync $fh;	1224	aio_fsync $fh;
		1225	}
856	close $fh;	1226	aio_close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	1227	aio_rename "$filename.pst~", "$filename.pst";
858	}	1228	}
859	} else {	1229	} else {
860	aio_unlink "$filename.pst";	1230	aio_unlink "$filename.pst";
861	}	1231	}
862		1232
863	aio_rename "$filename~", $filename;	1233	aio_rename "$filename~", $filename;
		1234
		1235	$filename =~ s%/[^/]+$%%;
		1236	aio_pathsync $filename if $cf::USE_FSYNC;
864	} else {	1237	} else {
865	warn "FATAL: $filename~: $!\n";	1238	error "unable to save objects: $filename~: $!\n";
866	}	1239	}
867	} else {	1240	} else {
868	aio_unlink $filename;	1241	aio_unlink $filename;
869	aio_unlink "$filename.pst";	1242	aio_unlink "$filename.pst";
870	}	1243	}
871	}	1244	};
872	}	1245	}
873		1246
874	sub object_freezer_as_string {	1247	sub object_freezer_as_string {
875	my ($rdata, $objs) = @_;	1248	my ($rdata, $objs) = @_;
876		1249
…		…
888	or return;	1261	or return;
889		1262
890	unless (aio_stat "$filename.pst") {	1263	unless (aio_stat "$filename.pst") {
891	(aio_load "$filename.pst", $av) >= 0	1264	(aio_load "$filename.pst", $av) >= 0
892	or return;	1265	or return;
		1266
893	$av = eval { (Storable::thaw $av)->{objs} };	1267	my $st = eval { Coro::Storable::thaw $av };
		1268	$av = $st->{objs};
894	}	1269	}
895		1270
		1271	utf8::decode (my $decname = $filename);
896	warn sprintf "loading %s (%d)\n",	1272	trace sprintf "loading %s (%d,%d)\n",
897	$filename, length $data, scalar @{$av || []};#d#	1273	$decname, length $data, scalar @{$av || []}
		1274	if $VERBOSE_IO;
		1275
898	return ($data, $av);	1276	($data, $av)
899	}	1277	}
		1278
		1279	=head2 COMMAND CALLBACKS
		1280
		1281	=over 4
		1282
		1283	=cut
900		1284
901	#############################################################################	1285	#############################################################################
902	# command handling &c	1286	# command handling &c
903		1287
904	=item cf::register_command $name => \&callback($ob,$args);	1288	=item cf::register_command $name => \&callback($ob,$args);
…		…
917	push @{ $COMMAND{$name} }, [$caller, $cb];	1301	push @{ $COMMAND{$name} }, [$caller, $cb];
918	}	1302	}
919		1303
920	=item cf::register_extcmd $name => \&callback($pl,$packet);	1304	=item cf::register_extcmd $name => \&callback($pl,$packet);
921		1305
922	Register a callbackf ro execution when the client sends an extcmd packet.	1306	Register a callback for execution when the client sends an (synchronous)
		1307	extcmd packet. Ext commands will be processed in the order they are
		1308	received by the server, like other user commands. The first argument is
		1309	the logged-in player. Ext commands can only be processed after a player
		1310	has logged in successfully.
923		1311
924	If the callback returns something, it is sent back as if reply was being	1312	If the callback returns something, it is sent back as if reply was being
925	called.	1313	called.
926		1314
		1315	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1316
		1317	Register a callback for execution when the client sends an (asynchronous)
		1318	exticmd packet. Exti commands are processed by the server as soon as they
		1319	are received, i.e. out of order w.r.t. other commands. The first argument
		1320	is a client socket. Exti commands can be received anytime, even before
		1321	log-in.
		1322
		1323	If the callback returns something, it is sent back as if reply was being
		1324	called.
		1325
927	=cut	1326	=cut
928		1327
929	sub register_extcmd {	1328	sub register_extcmd {
930	my ($name, $cb) = @_;	1329	my ($name, $cb) = @_;
931		1330
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	1331	$EXTCMD{$name} = $cb;
936	}	1332	}
		1333
		1334	sub register_exticmd {
		1335	my ($name, $cb) = @_;
		1336
		1337	$EXTICMD{$name} = $cb;
		1338	}
		1339
		1340	use File::Glob ();
937		1341
938	cf::player->attach (	1342	cf::player->attach (
939	on_command => sub {	1343	on_unknown_command => sub {
940	my ($pl, $name, $params) = @_;	1344	my ($pl, $name, $params) = @_;
941		1345
942	my $cb = $COMMAND{$name}	1346	my $cb = $COMMAND{$name}
943	or return;	1347	or return;
944		1348
…		…
949	cf::override;	1353	cf::override;
950	},	1354	},
951	on_extcmd => sub {	1355	on_extcmd => sub {
952	my ($pl, $buf) = @_;	1356	my ($pl, $buf) = @_;
953		1357
954	my $msg = eval { from_json $buf };	1358	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
955		1359
956	if (ref $msg) {	1360	if (ref $msg) {
		1361	my ($type, $reply, @payload) =
		1362	"ARRAY" eq ref $msg
		1363	? @$msg
		1364	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1365
		1366	my @reply;
		1367
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1368	if (my $cb = $EXTCMD{$type}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	1369	@reply = $cb->($pl, @payload);
959	$pl->ext_reply ($msg->{msgid}, %reply);
960	}
961	}	1370	}
		1371
		1372	$pl->ext_reply ($reply, @reply)
		1373	if $reply;
		1374
962	} else {	1375	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1376	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
964	}	1377	}
965		1378
966	cf::override;	1379	cf::override;
967	},	1380	},
968	);	1381	);
969		1382
970	sub register {	1383	# "readahead" all extensions
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	1384	sub cache_extensions {
977	my ($path) = @_;	1385	my $grp = IO::AIO::aio_group;
978		1386
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1387	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
980	my $base = $1;	1388	for (grep /\.ext$/, @{$_[0]}) {
981	my $pkg = $1;	1389	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
982	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";
984
985	warn "loading '$path' into '$pkg'\n";
986
987	open my $fh, "<:utf8", $path
988	or die "$path: $!";
989
990	my $source =
991	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })
994	. "\n};\n1";
995
996	eval $source
997	or die $@ ? "$path: $@\n"
998	: "extension disabled.\n";
999
1000	push @exts, $pkg;
1001	$ext_pkg{$base} = $pkg;
1002
1003	# no strict 'refs';
1004	# @{"$pkg\::ISA"} = ext::;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }
1019
1020	# remove commands
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}	1390	}
1029	}	1391	};
1030		1392
1031	# remove extcmds	1393	$grp
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}	1394	}
1045		1395
1046	sub load_extensions {	1396	sub load_extensions {
		1397	info "loading extensions...";
		1398
		1399	cf::sync_job {
		1400	my %todo;
		1401
1047	for my $ext (<$LIBDIR/*.ext>) {	1402	for my $path (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;	1403	next unless -r $path;
1049	eval {	1404
1050	load_extension $ext;	1405	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1406	my $base = $1;
		1407	my $pkg = $1;
		1408	$pkg =~ s/[^[:word:]]/_/g;
		1409	$pkg = "ext::$pkg";
		1410
		1411	open my $fh, "<:utf8", $path
		1412	or die "$path: $!";
		1413
		1414	my $source = do { local $/; <$fh> };
		1415
		1416	my %ext = (
		1417	path => $path,
		1418	base => $base,
		1419	pkg => $pkg,
		1420	);
		1421
		1422	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1423	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1424
		1425	$ext{source} =
		1426	"package $pkg; use common::sense;\n"
		1427	. "#line 1 \"$path\"\n{\n"
		1428	. $source
		1429	. "\n};\n1";
		1430
		1431	$todo{$base} = \%ext;
		1432	}
		1433
		1434	my $pass = 0;
		1435	my %done;
		1436	while (%todo) {
		1437	my $progress;
		1438
		1439	++$pass;
		1440
		1441	ext:
		1442	while (my ($k, $v) = each %todo) {
		1443	for (split /,\s*/, $v->{meta}{depends}) {
		1444	next ext
		1445	unless exists $done{$_};
		1446	}
		1447
		1448	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1449
		1450	my $active = eval $v->{source};
		1451
		1452	if (length $@) {
		1453	error "$v->{path}: $@\n";
		1454	undef $@; # work around perl 5.10.0 utf-8 caching bug
		1455
		1456	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1457	if exists $v->{meta}{mandatory};
		1458
		1459	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1460	delete $todo{$k};
		1461	} else {
		1462	$done{$k} = delete $todo{$k};
		1463	push @EXTS, $v->{pkg};
		1464	$progress = 1;
		1465
		1466	info "$v->{base}: extension inactive.\n"
		1467	unless $active;
		1468	}
1051	1	1469	}
1052	} or warn "$ext not loaded: $@";	1470
		1471	unless ($progress) {
		1472	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1473
		1474	while (my ($k, $v) = each %todo) {
		1475	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1476	if exists $v->{meta}{mandatory};
		1477	}
		1478	}
		1479	}
1053	}	1480	};
1054	}	1481	}
1055		1482
1056	#############################################################################	1483	#############################################################################
1057	# load/save/clean perl data associated with a map
1058		1484
1059	*cf::mapsupport::on_clean = sub {	1485	=back
		1486
		1487	=head2 CORE EXTENSIONS
		1488
		1489	Functions and methods that extend core deliantra objects.
		1490
		1491	=cut
		1492
		1493	package cf::player;
		1494
		1495	use Coro::AIO;
		1496
		1497	=head3 cf::player
		1498
		1499	=over 4
		1500
		1501	=item cf::player::num_playing
		1502
		1503	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1504
		1505	=cut
		1506
		1507	sub num_playing {
		1508	scalar grep
		1509	$_->ob->map
		1510	&& !$_->hidden
		1511	&& !$_->ob->flag (cf::FLAG_WIZ),
		1512	cf::player::list
		1513	}
		1514
		1515	=item cf::player::find $login
		1516
		1517	Returns the given player object, loading it if necessary (might block).
		1518
		1519	=cut
		1520
		1521	sub playerdir($) {
		1522	"$PLAYERDIR/"
		1523	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1524	}
		1525
		1526	sub path($) {
		1527	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1528
		1529	(playerdir $login) . "/playerdata"
		1530	}
		1531
		1532	sub find_active($) {
		1533	$cf::PLAYER{$_[0]}
		1534	and $cf::PLAYER{$_[0]}->active
		1535	and $cf::PLAYER{$_[0]}
		1536	}
		1537
		1538	sub exists($) {
1060	my ($map) = @_;	1539	my ($login) = @_;
1061		1540
1062	my $path = $map->tmpname;	1541	$cf::PLAYER{$login}
1063	defined $path or return;	1542	or !aio_stat path $login
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}	1543	}
1076		1544
1077	# TODO: compatibility cruft, remove when no longer needed	1545	sub find($) {
		1546	return $cf::PLAYER{$_[0]} || do {
		1547	my $login = $_[0];
		1548
		1549	my $guard = cf::lock_acquire "user_find:$login";
		1550
		1551	$cf::PLAYER{$_[0]} || do {
		1552	# rename old playerfiles to new ones
		1553	#TODO: remove when no longer required
		1554	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1555	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1556	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1557	aio_unlink +(playerdir $login) . "/$login.pl";
		1558
		1559	my $f = new_from_file cf::object::thawer path $login
		1560	or return;
		1561
		1562	my $pl = cf::player::load_pl $f
		1563	or return;
		1564
		1565	local $cf::PLAYER_LOADING{$login} = $pl;
		1566	$f->resolve_delayed_derefs;
		1567	$cf::PLAYER{$login} = $pl
		1568	}
		1569	}
		1570	}
		1571
1078	cf::player->attach (	1572	cf::player->attach (
1079	on_load => sub {	1573	on_load => sub {
1080	my ($pl, $path) = @_;	1574	my ($pl, $path) = @_;
1081		1575
1082	for my $o (all_objects $pl->ob) {	1576	# restore slots saved in save, below
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1577	my $slots = delete $pl->{_slots};
1084	$o->set_ob_key_value ("_perl_data");
1085		1578
1086	%$o = %{ Storable::thaw pack "H*", $value };	1579	$pl->ob->current_weapon ($slots->[0]);
1087	}	1580	$pl->combat_ob ($slots->[1]);
1088	}	1581	$pl->ranged_ob ($slots->[2]);
1089	},	1582	},
1090	);	1583	);
1091		1584
1092	#############################################################################	1585	sub save($) {
		1586	my ($pl) = @_;
1093		1587
1094	=head2 CORE EXTENSIONS	1588	return if $pl->{deny_save};
1095		1589
1096	Functions and methods that extend core crossfire objects.	1590	my $path = path $pl;
		1591	my $guard = cf::lock_acquire "user_save:$path";
1097		1592
1098	=head3 cf::player	1593	return if $pl->{deny_save};
		1594
		1595	aio_mkdir playerdir $pl, 0770;
		1596	$pl->{last_save} = $cf::RUNTIME;
		1597
		1598	cf::get_slot 0.01;
		1599
		1600	# save slots, to be restored later
		1601	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1602
		1603	$pl->save_pl ($path);
		1604	cf::cede_to_tick;
		1605	}
		1606
		1607	sub new($) {
		1608	my ($login) = @_;
		1609
		1610	my $self = create;
		1611
		1612	$self->ob->name ($login);
		1613	$self->{deny_save} = 1;
		1614
		1615	$cf::PLAYER{$login} = $self;
		1616
		1617	$self
		1618	}
		1619
		1620	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1621
		1622	=cut
		1623
		1624	sub send_msg {
		1625	my $ns = shift->ns
		1626	or return;
		1627	$ns->send_msg (@_);
		1628	}
		1629
		1630	=item $pl->quit_character
		1631
		1632	Nukes the player without looking back. If logged in, the connection will
		1633	be destroyed. May block for a long time.
		1634
		1635	=cut
		1636
		1637	sub quit_character {
		1638	my ($pl) = @_;
		1639
		1640	my $name = $pl->ob->name;
		1641
		1642	$pl->{deny_save} = 1;
		1643	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1644
		1645	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1646	$pl->deactivate;
		1647	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1648	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1649	$pl->ns->destroy if $pl->ns;
		1650
		1651	my $path = playerdir $pl;
		1652	my $temp = "$path~$cf::RUNTIME~deleting~";
		1653	aio_rename $path, $temp;
		1654	delete $cf::PLAYER{$pl->ob->name};
		1655	$pl->destroy;
		1656
		1657	my $prefix = qr<^~\Q$name\E/>;
		1658
		1659	# nuke player maps
		1660	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1661
		1662	IO::AIO::aio_rmtree $temp;
		1663	}
		1664
		1665	=item $pl->kick
		1666
		1667	Kicks a player out of the game. This destroys the connection.
		1668
		1669	=cut
		1670
		1671	sub kick {
		1672	my ($pl, $kicker) = @_;
		1673
		1674	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1675	$pl->killer ("kicked");
		1676	$pl->ns->destroy;
		1677	}
		1678
		1679	=item cf::player::list_logins
		1680
		1681	Returns am arrayref of all valid playernames in the system, can take a
		1682	while and may block, so not sync_job-capable, ever.
		1683
		1684	=cut
		1685
		1686	sub list_logins {
		1687	my $dirs = aio_readdir $PLAYERDIR
		1688	or return [];
		1689
		1690	my @logins;
		1691
		1692	for my $login (@$dirs) {
		1693	my $path = path $login;
		1694
		1695	# a .pst is a dead give-away for a valid player
		1696	# if no pst file found, open and chekc for blocked users
		1697	if (aio_stat "$path.pst") {
		1698	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1699	aio_read $fh, 0, 512, my $buf, 0 or next;
		1700	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1701	}
		1702
		1703	utf8::decode $login;
		1704	push @logins, $login;
		1705	}
		1706
		1707	\@logins
		1708	}
		1709
		1710	=item $player->maps
		1711
		1712	=item cf::player::maps $login
		1713
		1714	Returns an arrayref of map paths that are private for this
		1715	player. May block.
		1716
		1717	=cut
		1718
		1719	sub maps($) {
		1720	my ($pl) = @_;
		1721
		1722	$pl = ref $pl ? $pl->ob->name : $pl;
		1723
		1724	my $files = aio_readdir playerdir $pl
		1725	or return;
		1726
		1727	my @paths;
		1728
		1729	for (@$files) {
		1730	utf8::decode $_;
		1731	next if /\.(?:pl|pst)$/;
		1732	next unless /^$PATH_SEP/o;
		1733
		1734	push @paths, cf::map::normalise "~$pl/$_";
		1735	}
		1736
		1737	\@paths
		1738	}
		1739
		1740	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1741
		1742	Expand deliantra pod fragments into protocol xml.
		1743
		1744	=item $player->ext_reply ($msgid, @msg)
		1745
		1746	Sends an ext reply to the player.
		1747
		1748	=cut
		1749
		1750	sub ext_reply($$@) {
		1751	my ($self, $id, @msg) = @_;
		1752
		1753	$self->ns->ext_reply ($id, @msg)
		1754	}
		1755
		1756	=item $player->ext_msg ($type, @msg)
		1757
		1758	Sends an ext event to the client.
		1759
		1760	=cut
		1761
		1762	sub ext_msg($$@) {
		1763	my ($self, $type, @msg) = @_;
		1764
		1765	$self->ns->ext_msg ($type, @msg);
		1766	}
		1767
		1768	=head3 cf::region
1099		1769
1100	=over 4	1770	=over 4
1101		1771
1102	=item cf::player::exists $login
1103
1104	Returns true when the given account exists.
1105
1106	=cut	1772	=cut
1107		1773
1108	sub cf::player::exists($) {	1774	package cf::region;
1109	cf::player::find $_[0]
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1111	}
1112		1775
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)	1776	=item cf::region::find_by_path $path
1114		1777
1115	Sends an ext reply to the player.	1778	Tries to decuce the likely region for a map knowing only its path.
1116		1779
1117	=cut	1780	=cut
1118		1781
1119	sub cf::player::ext_reply($$$%) {	1782	sub find_by_path($) {
1120	my ($self, $id, %msg) = @_;	1783	my ($path) = @_;
1121		1784
1122	$msg{msgid} = $id;	1785	$path =~ s/^~[^\/]*//; # skip ~login
1123		1786
1124	$self->send ("ext " . to_json \%msg);	1787	my ($match, $specificity);
		1788
		1789	for my $region (list) {
		1790	if ($region->{match} && $path =~ $region->{match}) {
		1791	($match, $specificity) = ($region, $region->specificity)
		1792	if $region->specificity > $specificity;
		1793	}
		1794	}
		1795
		1796	$match
1125	}	1797	}
1126		1798
1127	=back	1799	=back
1128
1129		1800
1130	=head3 cf::map	1801	=head3 cf::map
1131		1802
1132	=over 4	1803	=over 4
1133		1804
…		…
1136	package cf::map;	1807	package cf::map;
1137		1808
1138	use Fcntl;	1809	use Fcntl;
1139	use Coro::AIO;	1810	use Coro::AIO;
1140		1811
		1812	use overload
		1813	'""' => \&as_string,
		1814	fallback => 1;
		1815
1141	our $MAX_RESET = 7200;	1816	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1817	our $DEFAULT_RESET = 3000;
1143		1818
1144	sub generate_random_map {	1819	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1820	my ($self, $rmp) = @_;
		1821
		1822	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1146		1823
1147	# mit "rum" bekleckern, nicht	1824	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1825	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1826	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1827	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1828	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1829	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1830	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1831	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1832	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1833	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1834	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1835	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(cf::region::find $rmp->{region})	1836	(cf::region::find $rmp->{region}), $rmp->{custom}
		1837	)
1161	}	1838	}
1162		1839
1163	# and all this just because we cannot iterate over	1840	=item cf::map->register ($regex, $prio)
1164	# all maps in C++...
1165	sub change_all_map_light {
1166	my ($change) = @_;
1167		1841
1168	$_->change_map_light ($change)	1842	Register a handler for the map path matching the given regex at the
1169	for grep $_->outdoor, values %cf::MAP;	1843	givne priority (higher is better, built-in handlers have priority 0, the
1170	}	1844	default).
1171		1845
1172	sub try_load_header($) {	1846	=cut
		1847
		1848	sub register {
		1849	my (undef, $regex, $prio) = @_;
		1850	my $pkg = caller;
		1851
		1852	push @{"$pkg\::ISA"}, __PACKAGE__;
		1853
		1854	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1855	}
		1856
		1857	# also paths starting with '/'
		1858	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1859
		1860	sub thawer_merge {
		1861	my ($self, $merge) = @_;
		1862
		1863	# we have to keep some variables in memory intact
		1864	local $self->{path};
		1865	local $self->{load_path};
		1866
		1867	$self->SUPER::thawer_merge ($merge);
		1868	}
		1869
		1870	sub normalise {
1173	my ($path) = @_;	1871	my ($path, $base) = @_;
		1872
		1873	$path = "$path"; # make sure its a string
		1874
		1875	$path =~ s/\.map$//;
		1876
		1877	# map plan:
		1878	#
		1879	# /! non-realised random map exit (special hack!)
		1880	# {... are special paths that are not being touched
		1881	# ?xxx/... are special absolute paths
		1882	# ?random/... random maps
		1883	# /... normal maps
		1884	# ~user/... per-player map of a specific user
		1885
		1886	$path =~ s/$PATH_SEP/\//go;
		1887
		1888	# treat it as relative path if it starts with
		1889	# something that looks reasonable
		1890	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1891	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1892
		1893	$base =~ s{[^/]+/?$}{};
		1894	$path = "$base/$path";
		1895	}
		1896
		1897	for ($path) {
		1898	redo if s{//}{/};
		1899	redo if s{/\.?/}{/};
		1900	redo if s{/[^/]+/\.\./}{/};
		1901	}
		1902
		1903	$path
		1904	}
		1905
		1906	sub new_from_path {
		1907	my (undef, $path, $base) = @_;
		1908
		1909	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1910
		1911	$path = normalise $path, $base;
		1912
		1913	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1914	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1915	my $self = bless cf::map::new, $pkg;
		1916	$self->{path} = $path; $self->path ($path);
		1917	$self->init; # pass $1 etc.
		1918	return $self;
		1919	}
		1920	}
		1921
		1922	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1923	()
		1924	}
		1925
		1926	sub init {
		1927	my ($self) = @_;
		1928
		1929	$self
		1930	}
		1931
		1932	sub as_string {
		1933	my ($self) = @_;
		1934
		1935	"$self->{path}"
		1936	}
		1937
		1938	# the displayed name, this is a one way mapping
		1939	sub visible_name {
		1940	&as_string
		1941	}
		1942
		1943	# the original (read-only) location
		1944	sub load_path {
		1945	my ($self) = @_;
		1946
		1947	"$MAPDIR/$self->{path}.map"
		1948	}
		1949
		1950	# the temporary/swap location
		1951	sub save_path {
		1952	my ($self) = @_;
		1953
		1954	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1955	"$TMPDIR/$path.map"
		1956	}
		1957
		1958	# the unique path, undef == no special unique path
		1959	sub uniq_path {
		1960	my ($self) = @_;
		1961
		1962	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1963	"$UNIQUEDIR/$path"
		1964	}
		1965
		1966	sub decay_objects {
		1967	my ($self) = @_;
		1968
		1969	return if $self->{deny_reset};
		1970
		1971	$self->do_decay_objects;
		1972	}
		1973
		1974	sub unlink_save {
		1975	my ($self) = @_;
		1976
		1977	utf8::encode (my $save = $self->save_path);
		1978	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1979	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1980	}
		1981
		1982	sub load_header_from($) {
		1983	my ($self, $path) = @_;
1174		1984
1175	utf8::encode $path;	1985	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1986	my $f = new_from_file cf::object::thawer $path
1177	or return;	1987	or return;
1178		1988
1179	my $map = cf::map::new	1989	$self->_load_header ($f)
1180	or return;	1990	or return;
1181		1991
1182	$map->load_header ($path)	1992	local $MAP_LOADING{$self->{path}} = $self;
		1993	$f->resolve_delayed_derefs;
		1994
		1995	$self->{load_path} = $path;
		1996
		1997	1
		1998	}
		1999
		2000	sub load_header_orig {
		2001	my ($self) = @_;
		2002
		2003	$self->load_header_from ($self->load_path)
		2004	}
		2005
		2006	sub load_header_temp {
		2007	my ($self) = @_;
		2008
		2009	$self->load_header_from ($self->save_path)
		2010	}
		2011
		2012	sub prepare_temp {
		2013	my ($self) = @_;
		2014
		2015	$self->last_access ((delete $self->{last_access})
		2016	|| $cf::RUNTIME); #d#
		2017	# safety
		2018	$self->{instantiate_time} = $cf::RUNTIME
		2019	if $self->{instantiate_time} > $cf::RUNTIME;
		2020	}
		2021
		2022	sub prepare_orig {
		2023	my ($self) = @_;
		2024
		2025	$self->{load_original} = 1;
		2026	$self->{instantiate_time} = $cf::RUNTIME;
		2027	$self->last_access ($cf::RUNTIME);
		2028	$self->instantiate;
		2029	}
		2030
		2031	sub load_header {
		2032	my ($self) = @_;
		2033
		2034	if ($self->load_header_temp) {
		2035	$self->prepare_temp;
		2036	} else {
		2037	$self->load_header_orig
1183	or return;	2038	or return;
		2039	$self->prepare_orig;
		2040	}
1184		2041
1185	$map->{load_path} = $path;	2042	$self->{deny_reset} = 1
		2043	if $self->no_reset;
1186		2044
1187	$map	2045	$self->default_region (cf::region::find_by_path $self->{path})
1188	}	2046	unless $self->default_region;
1189		2047
		2048	1
		2049	}
		2050
1190	sub find_map;	2051	sub find;
1191	sub find_map {	2052	sub find {
1192	my ($path, $origin) = @_;	2053	my ($path, $origin) = @_;
1193		2054
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	2055	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		2056
1199	cf::lock_wait "map_find:$key";	2057	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1200
1201	$cf::MAP{$key} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	2058	my $guard2 = cf::lock_acquire "map_find:$path";
1203		2059
1204	# do it the slow way	2060	$cf::MAP{$path} || do {
1205	my $map = try_load_header $path->save_path;	2061	my $map = new_from_path cf::map $path
1206
1207	if ($map) {
1208	# safety
1209	$map->{instantiate_time} = $cf::RUNTIME
1210	if $map->{instantiate_time} > $cf::RUNTIME;
1211	} else {
1212	if (my $rmp = $path->random_map_params) {
1213	$map = generate_random_map $key, $rmp;
1214	} else {
1215	$map = try_load_header $path->load_path;
1216	}
1217
1218	$map or return;	2062	or return;
1219		2063
1220	$map->{load_original} = 1;
1221	$map->{instantiate_time} = $cf::RUNTIME;
1222	$map->instantiate;
1223
1224	# per-player maps become, after loading, normal maps
1225	$map->per_player (0) if $path->{user_rel};
1226	}
1227
1228	$map->path ($key);
1229	$map->{path} = $path;
1230	$map->{last_save} = $cf::RUNTIME;	2064	$map->{last_save} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232		2065
1233	if ($map->should_reset) {	2066	$map->load_header
		2067	or return;
		2068
		2069	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2070	# doing this can freeze the server in a sync job, obviously
		2071	#$cf::WAIT_FOR_TICK->wait;
		2072	undef $guard2;
		2073	undef $guard1;
1234	$map->reset;	2074	$map->reset;
1235	undef $guard;	2075	return find $path;
1236	$map = find_map $path
1237	or return;
1238	}	2076	}
1239		2077
1240	$cf::MAP{$key} = $map	2078	$cf::MAP{$path} = $map
1241	}	2079	}
1242	}	2080	}
		2081
		2082	sub pre_load { }
		2083	#sub post_load { } # XS
1243		2084
1244	sub load {	2085	sub load {
1245	my ($self) = @_;	2086	my ($self) = @_;
1246		2087
		2088	local $self->{deny_reset} = 1; # loading can take a long time
		2089
1247	my $path = $self->{path};	2090	my $path = $self->{path};
		2091
		2092	{
1248	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2093	my $guard = cf::lock_acquire "map_data:$path";
1249		2094
		2095	return unless $self->valid;
1250	return if $self->in_memory != cf::MAP_SWAPPED;	2096	return unless $self->in_memory == cf::MAP_SWAPPED;
1251		2097
1252	$self->in_memory (cf::MAP_LOADING);	2098	$self->in_memory (cf::MAP_LOADING);
1253		2099
1254	$self->alloc;	2100	$self->alloc;
1255	$self->load_objects ($self->{load_path}, 1)	2101
		2102	$self->pre_load;
		2103	cf::cede_to_tick;
		2104
		2105	my $f = new_from_file cf::object::thawer $self->{load_path};
		2106	$f->skip_block;
		2107	$self->_load_objects ($f)
1256	or return;	2108	or return;
1257		2109
1258	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2110	$self->post_load_original
1259	if delete $self->{load_original};	2111	if delete $self->{load_original};
1260		2112
1261	if (my $uniq = $path->uniq_path) {	2113	if (my $uniq = $self->uniq_path) {
1262	utf8::encode $uniq;	2114	utf8::encode $uniq;
1263	if (aio_open $uniq, O_RDONLY, 0) {	2115	unless (aio_stat $uniq) {
		2116	if (my $f = new_from_file cf::object::thawer $uniq) {
1264	$self->clear_unique_items;	2117	$self->clear_unique_items;
1265	$self->load_objects ($uniq, 0);	2118	$self->_load_objects ($f);
		2119	$f->resolve_delayed_derefs;
		2120	}
1266	}	2121	}
1267	}	2122	}
1268		2123
		2124	$f->resolve_delayed_derefs;
		2125
		2126	cf::cede_to_tick;
1269	# now do the right thing for maps	2127	# now do the right thing for maps
1270	$self->link_multipart_objects;	2128	$self->link_multipart_objects;
1271
1272	if ($self->{path}->is_style_map) {
1273	$self->{deny_save} = 1;
1274	$self->{deny_reset} = 1;
1275	} else {
1276	$self->fix_auto_apply;
1277	$self->decay_objects;
1278	$self->update_buttons;
1279	$self->set_darkness_map;
1280	$self->difficulty ($self->estimate_difficulty)	2129	$self->difficulty ($self->estimate_difficulty)
1281	unless $self->difficulty;	2130	unless $self->difficulty;
		2131	cf::cede_to_tick;
		2132
		2133	unless ($self->{deny_activate}) {
		2134	$self->decay_objects;
		2135	$self->fix_auto_apply;
		2136	$self->update_buttons;
		2137	cf::cede_to_tick;
1282	$self->activate;	2138	$self->activate;
1283	}	2139	}
1284		2140
		2141	$self->{last_save} = $cf::RUNTIME;
		2142	$self->last_access ($cf::RUNTIME);
		2143
1285	$self->in_memory (cf::MAP_IN_MEMORY);	2144	$self->in_memory (cf::MAP_ACTIVE);
1286	}	2145	}
1287		2146
1288	sub load_map_sync {	2147	$self->post_load;
		2148	}
		2149
		2150	# customize the map for a given player, i.e.
		2151	# return the _real_ map. used by e.g. per-player
		2152	# maps to change the path to ~playername/mappath
		2153	sub customise_for {
		2154	my ($self, $ob) = @_;
		2155
		2156	return find "~" . $ob->name . "/" . $self->{path}
		2157	if $self->per_player;
		2158
		2159	# return find "?party/" . $ob->name . "/" . $self->{path}
		2160	# if $self->per_party;
		2161
		2162	$self
		2163	}
		2164
		2165	# find and load all maps in the 3x3 area around a map
		2166	sub load_neighbours {
		2167	my ($map) = @_;
		2168
		2169	my @neigh; # diagonal neighbours
		2170
		2171	for (0 .. 3) {
		2172	my $neigh = $map->tile_path ($_)
		2173	or next;
		2174	$neigh = find $neigh, $map
		2175	or next;
		2176	$neigh->load;
		2177
		2178	# now find the diagonal neighbours
		2179	push @neigh,
		2180	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2181	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2182	}
		2183
		2184	for (grep defined $_->[0], @neigh) {
		2185	my ($path, $origin) = @$_;
		2186	my $neigh = find $path, $origin
		2187	or next;
		2188	$neigh->load;
		2189	}
		2190	}
		2191
		2192	sub find_sync {
1289	my ($path, $origin) = @_;	2193	my ($path, $origin) = @_;
1290		2194
1291	#warn "load_map_sync<$path, $origin>\n";#d#	2195	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2196	if $Coro::current == $Coro::main;
1292		2197
1293	cf::sync_job {	2198	find $path, $origin
1294	my $map = cf::map::find_map $path, $origin	2199	}
1295	or return;	2200
		2201	sub do_load_sync {
		2202	my ($map) = @_;
		2203
		2204	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2205	if $Coro::current == $Coro::main;
		2206
1296	$map->load;	2207	$map->load;
1297	$map	2208	}
		2209
		2210	our %MAP_PREFETCH;
		2211	our $MAP_PREFETCHER = undef;
		2212
		2213	sub find_async {
		2214	my ($path, $origin, $load) = @_;
		2215
		2216	$path = normalise $path, $origin && $origin->{path};
		2217
		2218	if (my $map = $cf::MAP{$path}) {
		2219	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2220	}
		2221
		2222	$MAP_PREFETCH{$path} |= $load;
		2223
		2224	$MAP_PREFETCHER ||= cf::async {
		2225	$Coro::current->{desc} = "map prefetcher";
		2226
		2227	while (%MAP_PREFETCH) {
		2228	while (my ($k, $v) = each %MAP_PREFETCH) {
		2229	if (my $map = find $k) {
		2230	$map->load if $v;
		2231	}
		2232
		2233	delete $MAP_PREFETCH{$k};
		2234	}
		2235	}
		2236	undef $MAP_PREFETCHER;
		2237	};
		2238	$MAP_PREFETCHER->prio (6);
		2239
		2240	()
		2241	}
		2242
		2243	# common code, used by both ->save and ->swapout
		2244	sub _save {
		2245	my ($self) = @_;
		2246
		2247	$self->{last_save} = $cf::RUNTIME;
		2248
		2249	return unless $self->dirty;
		2250
		2251	my $save = $self->save_path; utf8::encode $save;
		2252	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2253
		2254	$self->{load_path} = $save;
		2255
		2256	return if $self->{deny_save};
		2257
		2258	local $self->{last_access} = $self->last_access;#d#
		2259
		2260	cf::async {
		2261	$Coro::current->{desc} = "map player save";
		2262	$_->contr->save for $self->players;
		2263	};
		2264
		2265	cf::get_slot 0.02;
		2266
		2267	if ($uniq) {
		2268	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2269	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2270	} else {
		2271	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1298	}	2272	}
1299	}	2273	}
1300		2274
1301	sub save {	2275	sub save {
1302	my ($self) = @_;	2276	my ($self) = @_;
1303		2277
1304	$self->{last_save} = $cf::RUNTIME;	2278	my $lock = cf::lock_acquire "map_data:$self->{path}";
1305		2279
1306	return unless $self->dirty;	2280	$self->_save;
1307
1308	my $save = $self->{path}->save_path; utf8::encode $save;
1309	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1310
1311	$self->{load_path} = $save;
1312
1313	return if $self->{deny_save};
1314
1315	if ($uniq) {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1317	$self->save_objects ($uniq, cf::IO_UNIQUES);
1318	} else {
1319	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1320	}
1321	}	2281	}
1322		2282
1323	sub swap_out {	2283	sub swap_out {
1324	my ($self) = @_;	2284	my ($self) = @_;
1325		2285
1326	# save first because save cedes	2286	my $lock = cf::lock_acquire "map_data:$self->{path}";
1327	$self->save;
1328		2287
		2288	return if $self->in_memory != cf::MAP_ACTIVE;
		2289	return if $self->{deny_save};
1329	return if $self->players;	2290	return if $self->players;
1330	return if $self->in_memory != cf::MAP_IN_MEMORY;
1331	return if $self->{deny_save};
1332		2291
		2292	# first deactivate the map and "unlink" it from the core
		2293	$self->deactivate;
		2294	$_->clear_links_to ($self) for values %cf::MAP;
		2295	$self->in_memory (cf::MAP_SWAPPED);
		2296
		2297	# then atomically save
		2298	$self->_save;
		2299
		2300	# then free the map
1333	$self->clear;	2301	$self->clear;
1334	$self->in_memory (cf::MAP_SWAPPED);
1335	}	2302	}
1336		2303
1337	sub reset_at {	2304	sub reset_at {
1338	my ($self) = @_;	2305	my ($self) = @_;
1339		2306
1340	# TODO: safety, remove and allow resettable per-player maps	2307	# TODO: safety, remove and allow resettable per-player maps
1341	return 1e99 if $self->{path}{user_rel};
1342	return 1e99 if $self->{deny_reset};	2308	return 1e99 if $self->{deny_reset};
1343		2309
1344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2310	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2311	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1346		2312
…		…
1351	my ($self) = @_;	2317	my ($self) = @_;
1352		2318
1353	$self->reset_at <= $cf::RUNTIME	2319	$self->reset_at <= $cf::RUNTIME
1354	}	2320	}
1355		2321
1356	sub unlink_save {
1357	my ($self) = @_;
1358
1359	utf8::encode (my $save = $self->{path}->save_path);
1360	aioreq_pri 3; IO::AIO::aio_unlink $save;
1361	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1362	}
1363
1364	sub rename {
1365	my ($self, $new_path) = @_;
1366
1367	$self->unlink_save;
1368
1369	delete $cf::MAP{$self->path};
1370	$self->{path} = new cf::path $new_path;
1371	$self->path ($self->{path}->as_string);
1372	$cf::MAP{$self->path} = $self;
1373
1374	$self->save;
1375	}
1376
1377	sub reset {	2322	sub reset {
1378	my ($self) = @_;	2323	my ($self) = @_;
1379		2324
		2325	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2326
1380	return if $self->players;	2327	return if $self->players;
1381	return if $self->{path}{user_rel};#d#
1382		2328
1383	warn "resetting map ", $self->path;#d#	2329	cf::trace "resetting map ", $self->path, "\n";
		2330
		2331	$self->in_memory (cf::MAP_SWAPPED);
		2332
		2333	# need to save uniques path
		2334	unless ($self->{deny_save}) {
		2335	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2336
		2337	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2338	if $uniq;
		2339	}
1384		2340
1385	delete $cf::MAP{$self->path};	2341	delete $cf::MAP{$self->path};
1386		2342
		2343	$self->deactivate;
1387	$_->clear_links_to ($self) for values %cf::MAP;	2344	$_->clear_links_to ($self) for values %cf::MAP;
		2345	$self->clear;
1388		2346
1389	$self->unlink_save;	2347	$self->unlink_save;
1390	$self->destroy;	2348	$self->destroy;
1391	}	2349	}
1392		2350
1393	my $nuke_counter = "aaaa";	2351	my $nuke_counter = "aaaa";
1394		2352
1395	sub nuke {	2353	sub nuke {
1396	my ($self) = @_;	2354	my ($self) = @_;
1397		2355
		2356	{
		2357	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2358
		2359	delete $cf::MAP{$self->path};
		2360
		2361	$self->unlink_save;
		2362
		2363	bless $self, "cf::map::wrap";
		2364	delete $self->{deny_reset};
1398	$self->{deny_save} = 1;	2365	$self->{deny_save} = 1;
1399	$self->reset_timeout (1);	2366	$self->reset_timeout (1);
1400	$self->rename ("{nuke}/" . ($nuke_counter++));	2367	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2368
		2369	$cf::MAP{$self->path} = $self;
		2370	}
		2371
1401	$self->reset; # polite request, might not happen	2372	$self->reset; # polite request, might not happen
1402	}	2373	}
1403		2374
1404	sub customise_for {	2375	=item $maps = cf::map::tmp_maps
1405	my ($map, $ob) = @_;
1406		2376
1407	if ($map->per_player) {	2377	Returns an arrayref with all map paths of currently instantiated and saved
1408	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2378	maps. May block.
		2379
		2380	=cut
		2381
		2382	sub tmp_maps() {
1409	}	2383	[
1410		2384	map {
1411	$map	2385	utf8::decode $_;
		2386	/\.map$/
		2387	? normalise $_
		2388	: ()
		2389	} @{ aio_readdir $TMPDIR or [] }
		2390	]
1412	}	2391	}
1413		2392
1414	sub emergency_save {	2393	=item $maps = cf::map::random_maps
1415	local $cf::FREEZE = 1;
1416		2394
1417	warn "enter emergency map save\n";	2395	Returns an arrayref with all map paths of currently instantiated and saved
		2396	random maps. May block.
1418		2397
1419	cf::sync_job {	2398	=cut
1420	warn "begin emergency map save\n";	2399
1421	$_->save for values %cf::MAP;	2400	sub random_maps() {
		2401	[
		2402	map {
		2403	utf8::decode $_;
		2404	/\.map$/
		2405	? normalise "?random/$_"
		2406	: ()
		2407	} @{ aio_readdir $RANDOMDIR or [] }
		2408	]
		2409	}
		2410
		2411	=item cf::map::unique_maps
		2412
		2413	Returns an arrayref of paths of all shared maps that have
		2414	instantiated unique items. May block.
		2415
		2416	=cut
		2417
		2418	sub unique_maps() {
		2419	[
		2420	map {
		2421	utf8::decode $_;
		2422	s/\.map$//; # TODO future compatibility hack
		2423	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2424	? ()
		2425	: normalise $_
		2426	} @{ aio_readdir $UNIQUEDIR or [] }
		2427	]
		2428	}
		2429
		2430	=item cf::map::static_maps
		2431
		2432	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2433	file in the shared directory excluding F</styles> and F</editor>). May
		2434	block.
		2435
		2436	=cut
		2437
		2438	sub static_maps() {
		2439	my @dirs = "";
		2440	my @maps;
		2441
		2442	while (@dirs) {
		2443	my $dir = shift @dirs;
		2444
		2445	next if $dir eq "/styles" || $dir eq "/editor";
		2446
		2447	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2448	or return;
		2449
		2450	for (@$files) {
		2451	s/\.map$// or next;
		2452	utf8::decode $_;
		2453	push @maps, "$dir/$_";
		2454	}
		2455
		2456	push @dirs, map "$dir/$_", @$dirs;
1422	};	2457	}
1423		2458
1424	warn "end emergency map save\n";	2459	\@maps
		2460	}
		2461
		2462	=back
		2463
		2464	=head3 cf::object
		2465
		2466	=cut
		2467
		2468	package cf::object;
		2469
		2470	=over 4
		2471
		2472	=item $ob->inv_recursive
		2473
		2474	Returns the inventory of the object I<and> their inventories, recursively,
		2475	but I<not> the object itself.
		2476
		2477	=cut
		2478
		2479	sub inv_recursive_;
		2480	sub inv_recursive_ {
		2481	map { $_, inv_recursive_ $_->inv } @_
		2482	}
		2483
		2484	sub inv_recursive {
		2485	inv_recursive_ inv $_[0]
		2486	}
		2487
		2488	=item $ref = $ob->ref
		2489
		2490	Creates and returns a persistent reference to an object that can be stored as a string.
		2491
		2492	=item $ob = cf::object::deref ($refstring)
		2493
		2494	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2495	even if the object actually exists. May block.
		2496
		2497	=cut
		2498
		2499	sub deref {
		2500	my ($ref) = @_;
		2501
		2502	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2503	my ($uuid, $name) = ($1, $2);
		2504	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2505	or return;
		2506	$pl->ob->uuid eq $uuid
		2507	or return;
		2508
		2509	$pl->ob
		2510	} else {
		2511	warn "$ref: cannot resolve object reference\n";
		2512	undef
		2513	}
1425	}	2514	}
1426		2515
1427	package cf;	2516	package cf;
1428		2517
1429	=back	2518	=back
1430
1431		2519
1432	=head3 cf::object::player	2520	=head3 cf::object::player
1433		2521
1434	=over 4	2522	=over 4
1435		2523
…		…
1438	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2526	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1439	can be C<undef>. Does the right thing when the player is currently in a	2527	can be C<undef>. Does the right thing when the player is currently in a
1440	dialogue with the given NPC character.	2528	dialogue with the given NPC character.
1441		2529
1442	=cut	2530	=cut
		2531
		2532	our $SAY_CHANNEL = {
		2533	id => "say",
		2534	title => "Map",
		2535	reply => "say ",
		2536	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2537	};
		2538
		2539	our $CHAT_CHANNEL = {
		2540	id => "chat",
		2541	title => "Chat",
		2542	reply => "chat ",
		2543	tooltip => "Player chat and shouts, global to the server.",
		2544	};
1443		2545
1444	# rough implementation of a future "reply" method that works	2546	# rough implementation of a future "reply" method that works
1445	# with dialog boxes.	2547	# with dialog boxes.
1446	#TODO: the first argument must go, split into a $npc->reply_to ( method	2548	#TODO: the first argument must go, split into a $npc->reply_to ( method
1447	sub cf::object::player::reply($$$;$) {	2549	sub cf::object::player::reply($$$;$) {
…		…
1449		2551
1450	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2552	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1451		2553
1452	if ($self->{record_replies}) {	2554	if ($self->{record_replies}) {
1453	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2555	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2556
1454	} else {	2557	} else {
		2558	my $pl = $self->contr;
		2559
		2560	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2561	my $dialog = $pl->{npc_dialog};
		2562	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2563
		2564	} else {
1455	$msg = $npc->name . " says: $msg" if $npc;	2565	$msg = $npc->name . " says: $msg" if $npc;
1456	$self->message ($msg, $flags);	2566	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2567	}
1457	}	2568	}
		2569	}
		2570
		2571	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2572
		2573	=cut
		2574
		2575	sub cf::object::send_msg {
		2576	my $pl = shift->contr
		2577	or return;
		2578	$pl->send_msg (@_);
1458	}	2579	}
1459		2580
1460	=item $player_object->may ("access")	2581	=item $player_object->may ("access")
1461		2582
1462	Returns wether the given player is authorized to access resource "access"	2583	Returns wether the given player is authorized to access resource "access"
…		…
1475		2596
1476	=item $player_object->enter_link	2597	=item $player_object->enter_link
1477		2598
1478	Freezes the player and moves him/her to a special map (C<{link}>).	2599	Freezes the player and moves him/her to a special map (C<{link}>).
1479		2600
1480	The player should be reaosnably safe there for short amounts of time. You	2601	The player should be reasonably safe there for short amounts of time (e.g.
1481	I<MUST> call C<leave_link> as soon as possible, though.	2602	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2603	though, as the player cannot control the character while it is on the link
		2604	map.
		2605
		2606	Will never block.
1482		2607
1483	=item $player_object->leave_link ($map, $x, $y)	2608	=item $player_object->leave_link ($map, $x, $y)
1484		2609
1485	Moves the player out of the specila link map onto the given map. If the	2610	Moves the player out of the special C<{link}> map onto the specified
1486	map is not valid (or omitted), the player will be moved back to the	2611	map. If the map is not valid (or omitted), the player will be moved back
1487	location he/she was before the call to C<enter_link>, or, if that fails,	2612	to the location he/she was before the call to C<enter_link>, or, if that
1488	to the emergency map position.	2613	fails, to the emergency map position.
1489		2614
1490	Might block.	2615	Might block.
1491		2616
1492	=cut	2617	=cut
		2618
		2619	sub link_map {
		2620	unless ($LINK_MAP) {
		2621	$LINK_MAP = cf::map::find "{link}"
		2622	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2623	$LINK_MAP->load;
		2624	}
		2625
		2626	$LINK_MAP
		2627	}
1493		2628
1494	sub cf::object::player::enter_link {	2629	sub cf::object::player::enter_link {
1495	my ($self) = @_;	2630	my ($self) = @_;
1496		2631
1497	$self->deactivate_recursive;	2632	$self->deactivate_recursive;
1498		2633
1499	return if $self->map == $LINK_MAP;	2634	++$self->{_link_recursion};
		2635
		2636	return if UNIVERSAL::isa $self->map, "ext::map_link";
1500		2637
1501	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2638	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1502	if $self->map;	2639	if $self->map && $self->map->{path} ne "{link}";
1503		2640
1504	$self->enter_map ($LINK_MAP, 20, 20);	2641	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1505	}	2642	}
1506		2643
1507	sub cf::object::player::leave_link {	2644	sub cf::object::player::leave_link {
1508	my ($self, $map, $x, $y) = @_;	2645	my ($self, $map, $x, $y) = @_;
		2646
		2647	return unless $self->contr->active;
1509		2648
1510	my $link_pos = delete $self->{_link_pos};	2649	my $link_pos = delete $self->{_link_pos};
1511		2650
1512	unless ($map) {	2651	unless ($map) {
1513	# restore original map position	2652	# restore original map position
1514	($map, $x, $y) = @{ $link_pos || [] };	2653	($map, $x, $y) = @{ $link_pos || [] };
1515	$map = cf::map::find_map $map;	2654	$map = cf::map::find $map;
1516		2655
1517	unless ($map) {	2656	unless ($map) {
1518	($map, $x, $y) = @$EMERGENCY_POSITION;	2657	($map, $x, $y) = @$EMERGENCY_POSITION;
1519	$map = cf::map::find_map $map	2658	$map = cf::map::find $map
1520	or die "FATAL: cannot load emergency map\n";	2659	or die "FATAL: cannot load emergency map\n";
1521	}	2660	}
1522	}	2661	}
1523		2662
1524	($x, $y) = (-1, -1)	2663	($x, $y) = (-1, -1)
1525	unless (defined $x) && (defined $y);	2664	unless (defined $x) && (defined $y);
1526		2665
1527	# use -1 or undef as default coordinates, not 0, 0	2666	# use -1 or undef as default coordinates, not 0, 0
1528	($x, $y) = ($map->enter_x, $map->enter_y)	2667	($x, $y) = ($map->enter_x, $map->enter_y)
1529	if $x <=0 && $y <= 0;	2668	if $x <= 0 && $y <= 0;
1530		2669
1531	$map->load;	2670	$map->load;
		2671	$map->load_neighbours;
1532		2672
		2673	return unless $self->contr->active;
		2674
		2675	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2676	if ($self->enter_map ($map, $x, $y)) {
		2677	# entering was successful
		2678	delete $self->{_link_recursion};
		2679	# only activate afterwards, to support waiting in hooks
1533	$self->activate_recursive;	2680	$self->activate_recursive;
1534	$self->enter_map ($map, $x, $y);
1535	}
1536
1537	cf::player->attach (
1538	on_logout => sub {
1539	my ($pl) = @_;
1540
1541	# abort map switching before logout
1542	if ($pl->ob->{_link_pos}) {
1543	cf::sync_job {
1544	$pl->ob->leave_link
1545	};
1546	}
1547	},	2681	}
1548	on_login => sub {
1549	my ($pl) = @_;
1550		2682
1551	# try to abort aborted map switching on player login :)	2683	}
1552	# should happen only on crashes
1553	if ($pl->ob->{_link_pos}) {
1554	$pl->ob->enter_link;
1555	cf::async {
1556	# we need this sleep as the login has a concurrent enter_exit running
1557	# and this sleep increases chances of the player not ending up in scorn
1558	Coro::Timer::sleep 1;
1559	$pl->ob->leave_link;
1560	};
1561	}
1562	},
1563	);
1564		2684
1565	=item $player_object->goto_map ($path, $x, $y)	2685	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1566		2686
1567	=cut	2687	Moves the player to the given map-path and coordinates by first freezing
		2688	her, loading and preparing them map, calling the provided $check callback
		2689	that has to return the map if sucecssful, and then unfreezes the player on
		2690	the new (success) or old (failed) map position. In either case, $done will
		2691	be called at the end of this process.
1568		2692
		2693	Note that $check will be called with a potentially non-loaded map, so if
		2694	it needs a loaded map it has to call C<< ->load >>.
		2695
		2696	=cut
		2697
		2698	our $GOTOGEN;
		2699
1569	sub cf::object::player::goto_map {	2700	sub cf::object::player::goto {
1570	my ($self, $path, $x, $y) = @_;	2701	my ($self, $path, $x, $y, $check, $done) = @_;
		2702
		2703	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2704	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2705	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2706	($path, $x, $y) = @$EMERGENCY_POSITION;
		2707	}
		2708
		2709	# do generation counting so two concurrent goto's will be executed in-order
		2710	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1571		2711
1572	$self->enter_link;	2712	$self->enter_link;
1573		2713
1574	(cf::async {	2714	(async {
1575	$path = new cf::path $path;	2715	$Coro::current->{desc} = "player::goto $path $x $y";
1576		2716
1577	my $map = cf::map::find_map $path->as_string;	2717	# *tag paths override both path and x|y
		2718	if ($path =~ /^\*(.*)$/) {
		2719	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2720	my $ob = $obs[rand @obs];
		2721
		2722	# see if we actually can go there
		2723	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2724	$ob = $obs[rand @obs];
		2725	} else {
		2726	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2727	}
		2728	# else put us there anyways for now #d#
		2729
		2730	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2731	} else {
		2732	($path, $x, $y) = (undef, undef, undef);
		2733	}
		2734	}
		2735
		2736	my $map = eval {
		2737	my $map = defined $path ? cf::map::find $path : undef;
		2738
		2739	if ($map) {
1578	$map = $map->customise_for ($self) if $map;	2740	$map = $map->customise_for ($self);
1579		2741	$map = $check->($map, $x, $y, $self) if $check && $map;
1580	# warn "entering ", $map->path, " at ($x, $y)\n"	2742	} else {
1581	# if $map;
1582
1583	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2743	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2744	}
1584		2745
		2746	$map
		2747	};
		2748
		2749	if ($@) {
		2750	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2751	LOG llevError | logBacktrace, Carp::longmess $@;
		2752	}
		2753
		2754	if ($gen == $self->{_goto_generation}) {
		2755	delete $self->{_goto_generation};
1585	$self->leave_link ($map, $x, $y);	2756	$self->leave_link ($map, $x, $y);
		2757	}
		2758
		2759	$done->($self) if $done;
1586	})->prio (1);	2760	})->prio (1);
1587	}	2761	}
1588		2762
1589	=item $player_object->enter_exit ($exit_object)	2763	=item $player_object->enter_exit ($exit_object)
1590		2764
…		…
1592		2766
1593	sub parse_random_map_params {	2767	sub parse_random_map_params {
1594	my ($spec) = @_;	2768	my ($spec) = @_;
1595		2769
1596	my $rmp = { # defaults	2770	my $rmp = { # defaults
1597	xsize => 10,	2771	xsize => (cf::rndm 15, 40),
1598	ysize => 10,	2772	ysize => (cf::rndm 15, 40),
		2773	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2774	#layout => string,
1599	};	2775	};
1600		2776
1601	for (split /\n/, $spec) {	2777	for (split /\n/, $spec) {
1602	my ($k, $v) = split /\s+/, $_, 2;	2778	my ($k, $v) = split /\s+/, $_, 2;
1603		2779
…		…
1615	# that depends on the exit object	2791	# that depends on the exit object
1616		2792
1617	my $rmp = parse_random_map_params $exit->msg;	2793	my $rmp = parse_random_map_params $exit->msg;
1618		2794
1619	if ($exit->map) {	2795	if ($exit->map) {
1620	$rmp->{region} = $exit->map->region_name;	2796	$rmp->{region} = $exit->region->name;
1621	$rmp->{origin_map} = $exit->map->path;	2797	$rmp->{origin_map} = $exit->map->path;
1622	$rmp->{origin_x} = $exit->x;	2798	$rmp->{origin_x} = $exit->x;
1623	$rmp->{origin_y} = $exit->y;	2799	$rmp->{origin_y} = $exit->y;
		2800
		2801	$exit->map->touch;
1624	}	2802	}
1625		2803
1626	$rmp->{random_seed} ||= $exit->random_seed;	2804	$rmp->{random_seed} ||= $exit->random_seed;
1627		2805
1628	my $data = cf::to_json $rmp;	2806	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1629	my $md5 = Digest::MD5::md5_hex $data;	2807	my $md5 = Digest::MD5::md5_hex $data;
		2808	my $meta = "$RANDOMDIR/$md5.meta";
1630		2809
1631	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2810	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1632	aio_write $fh, 0, (length $data), $data, 0;	2811	aio_write $fh, 0, (length $data), $data, 0;
		2812	undef $fh;
		2813	aio_rename "$meta~", $meta;
1633		2814
		2815	my $slaying = "?random/$md5";
		2816
		2817	if ($exit->valid) {
1634	$exit->slaying ("?random/$md5");	2818	$exit->slaying ("?random/$md5");
1635	$exit->msg (undef);	2819	$exit->msg (undef);
		2820	}
1636	}	2821	}
1637	}	2822	}
1638		2823
1639	sub cf::object::player::enter_exit {	2824	sub cf::object::player::enter_exit {
1640	my ($self, $exit) = @_;	2825	my ($self, $exit) = @_;
1641		2826
1642	return unless $self->type == cf::PLAYER;	2827	return unless $self->type == cf::PLAYER;
1643		2828
1644	$self->enter_link;	2829	$self->enter_link;
1645		2830
1646	(cf::async {	2831	(async {
		2832	$Coro::current->{desc} = "enter_exit";
		2833
1647	unless (eval {	2834	unless (eval {
		2835	$self->deactivate_recursive; # just to be sure
		2836
		2837	# random map handling
		2838	{
		2839	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2840
1648	prepare_random_map $exit	2841	prepare_random_map $exit
1649	if $exit->slaying eq "/!";	2842	if $exit->slaying eq "/!";
		2843	}
1650		2844
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2845	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2846	my $x = $exit->stats->hp;
		2847	my $y = $exit->stats->sp;
1653		2848
		2849	$self->goto ($map, $x, $y);
		2850
		2851	# if exit is damned, update players death & WoR home-position
		2852	$self->contr->savebed ($map, $x, $y)
		2853	if $exit->flag (cf::FLAG_DAMNED);
		2854
1654	1;	2855	1
1655	}) {	2856	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2857	$self->message ("Something went wrong deep within the deliantra server. "
1657	. "I'll try to bring you back to the map you were before. "	2858	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2859	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2860	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2861
1661	warn "ERROR in enter_exit: $@";	2862	error "ERROR in enter_exit: $@";
1662	$self->leave_link;	2863	$self->leave_link;
1663	}	2864	}
1664	})->prio (1);	2865	})->prio (1);
1665	}	2866	}
1666		2867
…		…
1677		2878
1678	sub cf::client::send_drawinfo {	2879	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2880	my ($self, $text, $flags) = @_;
1680		2881
1681	utf8::encode $text;	2882	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2883	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2884	}
1684		2885
		2886	=item $client->send_big_packet ($pkt)
		2887
		2888	Like C<send_packet>, but tries to compress large packets, and fragments
		2889	them as required.
		2890
		2891	=cut
		2892
		2893	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2894
		2895	sub cf::client::send_big_packet {
		2896	my ($self, $pkt) = @_;
		2897
		2898	# try lzf for large packets
		2899	$pkt = "lzf " . Compress::LZF::compress $pkt
		2900	if 1024 <= length $pkt and $self->{can_lzf};
		2901
		2902	# split very large packets
		2903	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2904	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2905	$pkt = "frag";
		2906	}
		2907
		2908	$self->send_packet ($pkt);
		2909	}
		2910
		2911	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2912
		2913	Send a drawinfo or msg packet to the client, formatting the msg for the
		2914	client if neccessary. C<$type> should be a string identifying the type of
		2915	the message, with C<log> being the default. If C<$color> is negative, suppress
		2916	the message unless the client supports the msg packet.
		2917
		2918	=cut
		2919
		2920	# non-persistent channels (usually the info channel)
		2921	our %CHANNEL = (
		2922	"c/motd" => {
		2923	id => "infobox",
		2924	title => "MOTD",
		2925	reply => undef,
		2926	tooltip => "The message of the day",
		2927	},
		2928	"c/identify" => {
		2929	id => "infobox",
		2930	title => "Identify",
		2931	reply => undef,
		2932	tooltip => "Items recently identified",
		2933	},
		2934	"c/examine" => {
		2935	id => "infobox",
		2936	title => "Examine",
		2937	reply => undef,
		2938	tooltip => "Signs and other items you examined",
		2939	},
		2940	"c/shopinfo" => {
		2941	id => "infobox",
		2942	title => "Shop Info",
		2943	reply => undef,
		2944	tooltip => "What your bargaining skill tells you about the shop",
		2945	},
		2946	"c/book" => {
		2947	id => "infobox",
		2948	title => "Book",
		2949	reply => undef,
		2950	tooltip => "The contents of a note or book",
		2951	},
		2952	"c/lookat" => {
		2953	id => "infobox",
		2954	title => "Look",
		2955	reply => undef,
		2956	tooltip => "What you saw there",
		2957	},
		2958	"c/who" => {
		2959	id => "infobox",
		2960	title => "Players",
		2961	reply => undef,
		2962	tooltip => "Shows players who are currently online",
		2963	},
		2964	"c/body" => {
		2965	id => "infobox",
		2966	title => "Body Parts",
		2967	reply => undef,
		2968	tooltip => "Shows which body parts you posess and are available",
		2969	},
		2970	"c/statistics" => {
		2971	id => "infobox",
		2972	title => "Statistics",
		2973	reply => undef,
		2974	tooltip => "Shows your primary statistics",
		2975	},
		2976	"c/skills" => {
		2977	id => "infobox",
		2978	title => "Skills",
		2979	reply => undef,
		2980	tooltip => "Shows your experience per skill and item power",
		2981	},
		2982	"c/shopitems" => {
		2983	id => "infobox",
		2984	title => "Shop Items",
		2985	reply => undef,
		2986	tooltip => "Shows the items currently for sale in this shop",
		2987	},
		2988	"c/resistances" => {
		2989	id => "infobox",
		2990	title => "Resistances",
		2991	reply => undef,
		2992	tooltip => "Shows your resistances",
		2993	},
		2994	"c/pets" => {
		2995	id => "infobox",
		2996	title => "Pets",
		2997	reply => undef,
		2998	tooltip => "Shows information abotu your pets/a specific pet",
		2999	},
		3000	"c/perceiveself" => {
		3001	id => "infobox",
		3002	title => "Perceive Self",
		3003	reply => undef,
		3004	tooltip => "You gained detailed knowledge about yourself",
		3005	},
		3006	"c/uptime" => {
		3007	id => "infobox",
		3008	title => "Uptime",
		3009	reply => undef,
		3010	tooltip => "How long the server has been running since last restart",
		3011	},
		3012	"c/mapinfo" => {
		3013	id => "infobox",
		3014	title => "Map Info",
		3015	reply => undef,
		3016	tooltip => "Information related to the maps",
		3017	},
		3018	"c/party" => {
		3019	id => "party",
		3020	title => "Party",
		3021	reply => "gsay ",
		3022	tooltip => "Messages and chat related to your party",
		3023	},
		3024	"c/death" => {
		3025	id => "death",
		3026	title => "Death",
		3027	reply => undef,
		3028	tooltip => "Reason for and more info about your most recent death",
		3029	},
		3030	"c/say" => $SAY_CHANNEL,
		3031	"c/chat" => $CHAT_CHANNEL,
		3032	);
		3033
		3034	sub cf::client::send_msg {
		3035	my ($self, $channel, $msg, $color, @extra) = @_;
		3036
		3037	$msg = $self->pl->expand_cfpod ($msg)
		3038	unless $color & cf::NDI_VERBATIM;
		3039
		3040	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3041
		3042	# check predefined channels, for the benefit of C
		3043	if ($CHANNEL{$channel}) {
		3044	$channel = $CHANNEL{$channel};
		3045
		3046	$self->ext_msg (channel_info => $channel);
		3047	$channel = $channel->{id};
		3048
		3049	} elsif (ref $channel) {
		3050	# send meta info to client, if not yet sent
		3051	unless (exists $self->{channel}{$channel->{id}}) {
		3052	$self->{channel}{$channel->{id}} = $channel;
		3053	$self->ext_msg (channel_info => $channel);
		3054	}
		3055
		3056	$channel = $channel->{id};
		3057	}
		3058
		3059	return unless @extra || length $msg;
		3060
		3061	# default colour, mask it out
		3062	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3063	if $color & cf::NDI_DEF;
		3064
		3065	my $pkt = "msg "
		3066	. $self->{json_coder}->encode (
		3067	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3068	);
		3069
		3070	$self->send_big_packet ($pkt);
		3071	}
		3072
		3073	=item $client->ext_msg ($type, @msg)
		3074
		3075	Sends an ext event to the client.
		3076
		3077	=cut
		3078
		3079	sub cf::client::ext_msg($$@) {
		3080	my ($self, $type, @msg) = @_;
		3081
		3082	if ($self->extcmd == 2) {
		3083	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3084	} elsif ($self->extcmd == 1) { # TODO: remove
		3085	push @msg, msgtype => "event_$type";
		3086	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3087	}
		3088	}
		3089
		3090	=item $client->ext_reply ($msgid, @msg)
		3091
		3092	Sends an ext reply to the client.
		3093
		3094	=cut
		3095
		3096	sub cf::client::ext_reply($$@) {
		3097	my ($self, $id, @msg) = @_;
		3098
		3099	if ($self->extcmd == 2) {
		3100	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3101	} elsif ($self->extcmd == 1) {
		3102	#TODO: version 1, remove
		3103	unshift @msg, msgtype => "reply", msgid => $id;
		3104	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3105	}
		3106	}
1685		3107
1686	=item $success = $client->query ($flags, "text", \&cb)	3108	=item $success = $client->query ($flags, "text", \&cb)
1687		3109
1688	Queues a query to the client, calling the given callback with	3110	Queues a query to the client, calling the given callback with
1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3111	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1690	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3112	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1691		3113
1692	Queries can fail, so check the return code. Or don't, as queries will become	3114	Queries can fail, so check the return code. Or don't, as queries will
1693	reliable at some point in the future.	3115	become reliable at some point in the future.
1694		3116
1695	=cut	3117	=cut
1696		3118
1697	sub cf::client::query {	3119	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	3120	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	3128	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3129	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		3130
1709	$self->send_packet ($self->{query_queue}[0][0])	3131	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	3132	if @{ $self->{query_queue} } == 1;
		3133
		3134	1
1711	}	3135	}
1712		3136
1713	cf::client->attach (	3137	cf::client->attach (
		3138	on_connect => sub {
		3139	my ($ns) = @_;
		3140
		3141	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3142	},
1714	on_reply => sub {	3143	on_reply => sub {
1715	my ($ns, $msg) = @_;	3144	my ($ns, $msg) = @_;
1716		3145
1717	# this weird shuffling is so that direct followup queries	3146	# this weird shuffling is so that direct followup queries
1718	# get handled first	3147	# get handled first
1719	my $queue = delete $ns->{query_queue}	3148	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	3149	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		3150
1722	(shift @$queue)->[1]->($msg);	3151	(shift @$queue)->[1]->($msg);
		3152	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		3153
1724	push @{ $ns->{query_queue} }, @$queue;	3154	push @{ $ns->{query_queue} }, @$queue;
1725		3155
1726	if (@{ $ns->{query_queue} } == @$queue) {	3156	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	3157	if (@$queue) {
…		…
1729	} else {	3159	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3160	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	3161	}
1732	}	3162	}
1733	},	3163	},
		3164	on_exticmd => sub {
		3165	my ($ns, $buf) = @_;
		3166
		3167	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3168
		3169	if (ref $msg) {
		3170	my ($type, $reply, @payload) =
		3171	"ARRAY" eq ref $msg
		3172	? @$msg
		3173	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3174
		3175	my @reply;
		3176
		3177	if (my $cb = $EXTICMD{$type}) {
		3178	@reply = $cb->($ns, @payload);
		3179	}
		3180
		3181	$ns->ext_reply ($reply, @reply)
		3182	if $reply;
		3183
		3184	} else {
		3185	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3186	}
		3187
		3188	cf::override;
		3189	},
1734	);	3190	);
1735		3191
1736	=item $client->coro (\&cb)	3192	=item $client->async (\&cb)
1737		3193
1738	Create a new coroutine, running the specified callback. The coroutine will	3194	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	3195	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	3196	or loss of connection).
1741		3197
1742	=cut	3198	=cut
1743		3199
1744	sub cf::client::coro {	3200	sub cf::client::async {
1745	my ($self, $cb) = @_;	3201	my ($self, $cb) = @_;
1746		3202
1747	my $coro = &cf::async ($cb);	3203	my $coro = &Coro::async ($cb);
1748		3204
1749	$coro->on_destroy (sub {	3205	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	3206	delete $self->{_coro}{$coro+0};
1751	});	3207	});
1752		3208
…		…
1754		3210
1755	$coro	3211	$coro
1756	}	3212	}
1757		3213
1758	cf::client->attach (	3214	cf::client->attach (
1759	on_destroy => sub {	3215	on_client_destroy => sub {
1760	my ($ns) = @_;	3216	my ($ns) = @_;
1761		3217
1762	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3218	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1763	},	3219	},
1764	);	3220	);
…		…
1779	our $safe = new Safe "safe";	3235	our $safe = new Safe "safe";
1780	our $safe_hole = new Safe::Hole;	3236	our $safe_hole = new Safe::Hole;
1781		3237
1782	$SIG{FPE} = 'IGNORE';	3238	$SIG{FPE} = 'IGNORE';
1783		3239
1784	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3240	$safe->permit_only (Opcode::opset qw(
		3241	:base_core :base_mem :base_orig :base_math :base_loop
		3242	grepstart grepwhile mapstart mapwhile
		3243	sort time
		3244	));
1785		3245
1786	# here we export the classes and methods available to script code	3246	# here we export the classes and methods available to script code
1787		3247
1788	=pod	3248	=pod
1789		3249
1790	The following fucntions and emthods are available within a safe environment:	3250	The following functions and methods are available within a safe environment:
1791		3251
1792	cf::object contr pay_amount pay_player map	3252	cf::object
		3253	contr pay_amount pay_player map x y force_find force_add destroy
		3254	insert remove name archname title slaying race decrease split
		3255	value
		3256
1793	cf::object::player player	3257	cf::object::player
1794	cf::player peaceful	3258	player
1795	cf::map trigger	3259
		3260	cf::player
		3261	peaceful
		3262
		3263	cf::map
		3264	trigger
1796		3265
1797	=cut	3266	=cut
1798		3267
1799	for (	3268	for (
1800	["cf::object" => qw(contr pay_amount pay_player map)],	3269	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3270	insert remove inv nrof name archname title slaying race
		3271	decrease split destroy change_exp value msg lore send_msg)],
1801	["cf::object::player" => qw(player)],	3272	["cf::object::player" => qw(player)],
1802	["cf::player" => qw(peaceful)],	3273	["cf::player" => qw(peaceful send_msg)],
1803	["cf::map" => qw(trigger)],	3274	["cf::map" => qw(trigger)],
1804	) {	3275	) {
1805	no strict 'refs';
1806	my ($pkg, @funs) = @$_;	3276	my ($pkg, @funs) = @$_;
1807	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3277	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1808	for @funs;	3278	for @funs;
1809	}	3279	}
1810		3280
…		…
1825		3295
1826	my $qcode = $code;	3296	my $qcode = $code;
1827	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3297	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1828	$qcode =~ s/\n/\\n/g;	3298	$qcode =~ s/\n/\\n/g;
1829		3299
		3300	%vars = (_dummy => 0) unless %vars;
		3301
		3302	my @res;
1830	local $_;	3303	local $_;
1831	local @safe::cf::_safe_eval_args = values %vars;
1832		3304
1833	my $eval =	3305	my $eval =
1834	"do {\n"	3306	"do {\n"
1835	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3307	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1836	. "#line 0 \"{$qcode}\"\n"	3308	. "#line 0 \"{$qcode}\"\n"
1837	. $code	3309	. $code
1838	. "\n}"	3310	. "\n}"
1839	;	3311	;
1840		3312
		3313	if ($CFG{safe_eval}) {
1841	sub_generation_inc;	3314	sub_generation_inc;
		3315	local @safe::cf::_safe_eval_args = values %vars;
1842	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3316	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1843	sub_generation_inc;	3317	sub_generation_inc;
		3318	} else {
		3319	local @cf::_safe_eval_args = values %vars;
		3320	@res = wantarray ? eval eval : scalar eval $eval;
		3321	}
1844		3322
1845	if ($@) {	3323	if ($@) {
1846	warn "$@";	3324	warn "$@",
1847	warn "while executing safe code '$code'\n";	3325	"while executing safe code '$code'\n",
1848	warn "with arguments " . (join " ", %vars) . "\n";	3326	"with arguments " . (join " ", %vars) . "\n";
1849	}	3327	}
1850		3328
1851	wantarray ? @res : $res[0]	3329	wantarray ? @res : $res[0]
1852	}	3330	}
1853		3331
…		…
1867	=cut	3345	=cut
1868		3346
1869	sub register_script_function {	3347	sub register_script_function {
1870	my ($fun, $cb) = @_;	3348	my ($fun, $cb) = @_;
1871		3349
1872	no strict 'refs';	3350	$fun = "safe::$fun" if $CFG{safe_eval};
1873	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3351	*$fun = $safe_hole->wrap ($cb);
1874	}	3352	}
1875		3353
1876	=back	3354	=back
1877		3355
1878	=cut	3356	=cut
1879		3357
1880	#############################################################################	3358	#############################################################################
		3359	# the server's init and main functions
1881		3360
1882	=head2 EXTENSION DATABASE SUPPORT	3361	sub load_facedata($) {
		3362	my ($path) = @_;
1883		3363
1884	Crossfire maintains a very simple database for extension use. It can	3364	# HACK to clear player env face cache, we need some signal framework
1885	currently store anything that can be serialised using Storable, which	3365	# for this (global event?)
1886	excludes objects.	3366	%ext::player_env::MUSIC_FACE_CACHE = ();
1887		3367
1888	The parameter C<$family> should best start with the name of the extension	3368	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1889	using it, it should be unique.
1890		3369
1891	=over 4	3370	trace "loading facedata from $path\n";
1892		3371
1893	=item $hashref = cf::db_get $family	3372	my $facedata;
		3373	0 < aio_load $path, $facedata
		3374	or die "$path: $!";
1894		3375
1895	Return a hashref for use by the extension C<$family>, which can be	3376	$facedata = Coro::Storable::thaw $facedata;
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898		3377
1899	=item $value = cf::db_get $family => $key	3378	$facedata->{version} == 2
		3379	or cf::cleanup "$path: version mismatch, cannot proceed.";
1900		3380
1901	Returns a single value from the database	3381	# patch in the exptable
1902		3382	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1903	=item cf::db_put $family => $hashref	3383	$facedata->{resource}{"res/exp_table"} = {
1904		3384	type => FT_RSRC,
1905	Stores the given family hashref into the database. Updates are delayed, if	3385	data => $exp_table,
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3386	hash => (Digest::MD5::md5 $exp_table),
1907
1908	=item cf::db_put $family => $key => $value
1909
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920
1921	=cut
1922
1923	our $DB;
1924
1925	{
1926	my $path = cf::localdir . "/database.pst";
1927
1928	sub db_load() {
1929	$DB = stat $path ? Storable::retrieve $path : { };
1930	}
1931
1932	my $pid;
1933
1934	sub db_save() {
1935	waitpid $pid, 0 if $pid;
1936	if (0 == ($pid = fork)) {
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});	3387	};
		3388	cf::cede_to_tick;
1954		3389
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}	3390	{
		3391	my $faces = $facedata->{faceinfo};
1959		3392
1960	sub db_get($;$) {	3393	while (my ($face, $info) = each %$faces) {
1961	@_ >= 2	3394	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965		3395
1966	sub db_put($$;$) {	3396	cf::face::set_visibility $idx, $info->{visibility};
1967	if (@_ >= 3) {	3397	cf::face::set_magicmap $idx, $info->{magicmap};
1968	$DB->{$_[0]}{$_[1]} = $_[2];	3398	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1969	} else {	3399	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974		3400
1975	cf::global->attach (	3401	cf::cede_to_tick;
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	3402	}
1980	);
1981	}
1982		3403
1983	#############################################################################	3404	while (my ($face, $info) = each %$faces) {
1984	# the server's main()	3405	next unless $info->{smooth};
1985		3406
1986	sub cfg_load {	3407	my $idx = cf::face::find $face
		3408	or next;
		3409
		3410	if (my $smooth = cf::face::find $info->{smooth}) {
		3411	cf::face::set_smooth $idx, $smooth;
		3412	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3413	} else {
		3414	error "smooth face '$info->{smooth}' not found for face '$face'";
		3415	}
		3416
		3417	cf::cede_to_tick;
		3418	}
		3419	}
		3420
		3421	{
		3422	my $anims = $facedata->{animinfo};
		3423
		3424	while (my ($anim, $info) = each %$anims) {
		3425	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3426	cf::cede_to_tick;
		3427	}
		3428
		3429	cf::anim::invalidate_all; # d'oh
		3430	}
		3431
		3432	{
		3433	my $res = $facedata->{resource};
		3434
		3435	while (my ($name, $info) = each %$res) {
		3436	if (defined $info->{type}) {
		3437	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3438
		3439	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3440	cf::face::set_type $idx, $info->{type};
		3441	} else {
		3442	$RESOURCE{$name} = $info; # unused
		3443	}
		3444
		3445	cf::cede_to_tick;
		3446	}
		3447	}
		3448
		3449	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3450
		3451	1
		3452	}
		3453
		3454	register_exticmd fx_want => sub {
		3455	my ($ns, $want) = @_;
		3456
		3457	while (my ($k, $v) = each %$want) {
		3458	$ns->fx_want ($k, $v);
		3459	}
		3460	};
		3461
		3462	sub load_resource_file($) {
		3463	my $guard = lock_acquire "load_resource_file";
		3464
		3465	my $status = load_resource_file_ $_[0];
		3466	get_slot 0.1, 100;
		3467	cf::arch::commit_load;
		3468
		3469	$status
		3470	}
		3471
		3472	sub reload_regions {
		3473	# HACK to clear player env face cache, we need some signal framework
		3474	# for this (global event?)
		3475	%ext::player_env::MUSIC_FACE_CACHE = ();
		3476
		3477	load_resource_file "$MAPDIR/regions"
		3478	or die "unable to load regions file\n";
		3479
		3480	for (cf::region::list) {
		3481	$_->{match} = qr/$_->{match}/
		3482	if exists $_->{match};
		3483	}
		3484	}
		3485
		3486	sub reload_facedata {
		3487	load_facedata "$DATADIR/facedata"
		3488	or die "unable to load facedata\n";
		3489	}
		3490
		3491	sub reload_archetypes {
		3492	load_resource_file "$DATADIR/archetypes"
		3493	or die "unable to load archetypes\n";
		3494	}
		3495
		3496	sub reload_treasures {
		3497	load_resource_file "$DATADIR/treasures"
		3498	or die "unable to load treasurelists\n";
		3499	}
		3500
		3501	sub reload_sound {
		3502	trace "loading sound config from $DATADIR/sound\n";
		3503
		3504	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3505	or die "$DATADIR/sound $!";
		3506
		3507	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3508
		3509	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3510	my $sound = $soundconf->{compat}[$_]
		3511	or next;
		3512
		3513	my $face = cf::face::find "sound/$sound->[1]";
		3514	cf::sound::set $sound->[0] => $face;
		3515	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3516	}
		3517
		3518	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3519	my $face = cf::face::find "sound/$v";
		3520	cf::sound::set $k => $face;
		3521	}
		3522	}
		3523
		3524	sub reload_resources {
		3525	trace "reloading resource files...\n";
		3526
		3527	reload_facedata;
		3528	reload_sound;
		3529	reload_archetypes;
		3530	reload_regions;
		3531	reload_treasures;
		3532
		3533	trace "finished reloading resource files\n";
		3534	}
		3535
		3536	sub reload_config {
		3537	trace "reloading config file...\n";
		3538
1987	open my $fh, "<:utf8", cf::confdir . "/config"	3539	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	3540	or return;
1989		3541
1990	local $/;	3542	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	3543	*CFG = YAML::XS::Load scalar <$fh>;
1992		3544
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3545	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3546
		3547	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3548	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1994		3549
1995	if (exists $CFG{mlockall}) {	3550	if (exists $CFG{mlockall}) {
1996	eval {	3551	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	3552	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	3553	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	3554	};
2000	warn $@ if $@;	3555	warn $@ if $@;
2001	}	3556	}
		3557
		3558	trace "finished reloading resource files\n";
		3559	}
		3560
		3561	sub pidfile() {
		3562	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3563	or die "$PIDFILE: $!";
		3564	flock $fh, &Fcntl::LOCK_EX
		3565	or die "$PIDFILE: flock: $!";
		3566	$fh
		3567	}
		3568
		3569	# make sure only one server instance is running at any one time
		3570	sub atomic {
		3571	my $fh = pidfile;
		3572
		3573	my $pid = <$fh>;
		3574	kill 9, $pid if $pid > 0;
		3575
		3576	seek $fh, 0, 0;
		3577	print $fh $$;
		3578	}
		3579
		3580	sub main_loop {
		3581	trace "EV::loop starting\n";
		3582	if (1) {
		3583	EV::loop;
		3584	}
		3585	trace "EV::loop returned\n";
		3586	goto &main_loop unless $REALLY_UNLOOP;
2002	}	3587	}
2003		3588
2004	sub main {	3589	sub main {
		3590	cf::init_globals; # initialise logging
		3591
		3592	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3593	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3594	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3595	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3596
		3597	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3598
2005	# we must not ever block the main coroutine	3599	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	3600	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3601	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	3602	(async {
2009	Event::one_event;	3603	$Coro::current->{desc} = "IDLE BUG HANDLER";
2010	})->();	3604	EV::loop EV::LOOP_ONESHOT;
		3605	})->prio (Coro::PRIO_MAX);
2011	};	3606	};
2012		3607
2013	cfg_load;	3608	evthread_start IO::AIO::poll_fileno;
2014	db_load;	3609
		3610	cf::sync_job {
		3611	cf::init_experience;
		3612	cf::init_anim;
		3613	cf::init_attackmess;
		3614	cf::init_dynamic;
		3615
		3616	cf::load_settings;
		3617	cf::load_materials;
		3618
		3619	reload_resources;
		3620	reload_config;
		3621	db_init;
		3622
		3623	cf::init_uuid;
		3624	cf::init_signals;
		3625	cf::init_skills;
		3626
		3627	cf::init_beforeplay;
		3628
		3629	atomic;
		3630
2015	load_extensions;	3631	load_extensions;
2016	Event::loop;	3632
		3633	utime time, time, $RUNTIMEFILE;
		3634
		3635	# no (long-running) fork's whatsoever before this point(!)
		3636	use POSIX ();
		3637	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3638
		3639	(pop @POST_INIT)->(0) while @POST_INIT;
		3640	};
		3641
		3642	cf::object::thawer::errors_are_fatal 0;
		3643	info "parse errors in files are no longer fatal from this point on.\n";
		3644
		3645	main_loop;
2017	}	3646	}
2018		3647
2019	#############################################################################	3648	#############################################################################
2020	# initialisation	3649	# initialisation and cleanup
2021		3650
		3651	# install some emergency cleanup handlers
		3652	BEGIN {
		3653	our %SIGWATCHER = ();
		3654	for my $signal (qw(INT HUP TERM)) {
		3655	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3656	cf::cleanup "SIG$signal";
		3657	};
		3658	}
		3659	}
		3660
		3661	sub write_runtime_sync {
		3662	my $t0 = AE::time;
		3663
		3664	# first touch the runtime file to show we are still running:
		3665	# the fsync below can take a very very long time.
		3666
		3667	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3668
		3669	my $guard = cf::lock_acquire "write_runtime";
		3670
		3671	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3672	or return;
		3673
		3674	my $value = $cf::RUNTIME + 90 + 10;
		3675	# 10 is the runtime save interval, for a monotonic clock
		3676	# 60 allows for the watchdog to kill the server.
		3677
		3678	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3679	and return;
		3680
		3681	# always fsync - this file is important
		3682	aio_fsync $fh
		3683	and return;
		3684
		3685	# touch it again to show we are up-to-date
		3686	aio_utime $fh, undef, undef;
		3687
		3688	close $fh
		3689	or return;
		3690
		3691	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3692	and return;
		3693
		3694	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3695
		3696	1
		3697	}
		3698
		3699	our $uuid_lock;
		3700	our $uuid_skip;
		3701
		3702	sub write_uuid_sync($) {
		3703	$uuid_skip ||= $_[0];
		3704
		3705	return if $uuid_lock;
		3706	local $uuid_lock = 1;
		3707
		3708	my $uuid = "$LOCALDIR/uuid";
		3709
		3710	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3711	or return;
		3712
		3713	my $value = uuid_seq uuid_cur;
		3714
		3715	unless ($value) {
		3716	info "cowardly refusing to write zero uuid value!\n";
		3717	return;
		3718	}
		3719
		3720	my $value = uuid_str $value + $uuid_skip;
		3721	$uuid_skip = 0;
		3722
		3723	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3724	and return;
		3725
		3726	# always fsync - this file is important
		3727	aio_fsync $fh
		3728	and return;
		3729
		3730	close $fh
		3731	or return;
		3732
		3733	aio_rename "$uuid~", $uuid
		3734	and return;
		3735
		3736	trace "uuid file written ($value).\n";
		3737
		3738	1
		3739
		3740	}
		3741
		3742	sub write_uuid($$) {
		3743	my ($skip, $sync) = @_;
		3744
		3745	$sync ? write_uuid_sync $skip
		3746	: async { write_uuid_sync $skip };
		3747	}
		3748
		3749	sub emergency_save() {
		3750	my $freeze_guard = cf::freeze_mainloop;
		3751
		3752	info "emergency_perl_save: enter\n";
		3753
		3754	# this is a trade-off: we want to be very quick here, so
		3755	# save all maps without fsync, and later call a global sync
		3756	# (which in turn might be very very slow)
		3757	local $USE_FSYNC = 0;
		3758
		3759	cf::sync_job {
		3760	cf::write_runtime_sync; # external watchdog should not bark
		3761
		3762	# use a peculiar iteration method to avoid tripping on perl
		3763	# refcount bugs in for. also avoids problems with players
		3764	# and maps saved/destroyed asynchronously.
		3765	info "emergency_perl_save: begin player save\n";
		3766	for my $login (keys %cf::PLAYER) {
		3767	my $pl = $cf::PLAYER{$login} or next;
		3768	$pl->valid or next;
		3769	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3770	$pl->save;
		3771	}
		3772	info "emergency_perl_save: end player save\n";
		3773
		3774	cf::write_runtime_sync; # external watchdog should not bark
		3775
		3776	info "emergency_perl_save: begin map save\n";
		3777	for my $path (keys %cf::MAP) {
		3778	my $map = $cf::MAP{$path} or next;
		3779	$map->valid or next;
		3780	$map->save;
		3781	}
		3782	info "emergency_perl_save: end map save\n";
		3783
		3784	cf::write_runtime_sync; # external watchdog should not bark
		3785
		3786	info "emergency_perl_save: begin database checkpoint\n";
		3787	BDB::db_env_txn_checkpoint $DB_ENV;
		3788	info "emergency_perl_save: end database checkpoint\n";
		3789
		3790	info "emergency_perl_save: begin write uuid\n";
		3791	write_uuid_sync 1;
		3792	info "emergency_perl_save: end write uuid\n";
		3793
		3794	cf::write_runtime_sync; # external watchdog should not bark
		3795
		3796	trace "emergency_perl_save: syncing database to disk";
		3797	BDB::db_env_txn_checkpoint $DB_ENV;
		3798
		3799	info "emergency_perl_save: starting sync\n";
		3800	IO::AIO::aio_sync sub {
		3801	info "emergency_perl_save: finished sync\n";
		3802	};
		3803
		3804	cf::write_runtime_sync; # external watchdog should not bark
		3805
		3806	trace "emergency_perl_save: flushing outstanding aio requests";
		3807	while (IO::AIO::nreqs || BDB::nreqs) {
		3808	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3809	}
		3810
		3811	cf::write_runtime_sync; # external watchdog should not bark
		3812	};
		3813
		3814	info "emergency_perl_save: leave\n";
		3815	}
		3816
		3817	sub post_cleanup {
		3818	my ($make_core) = @_;
		3819
		3820	IO::AIO::flush;
		3821
		3822	error Carp::longmess "post_cleanup backtrace"
		3823	if $make_core;
		3824
		3825	my $fh = pidfile;
		3826	unlink $PIDFILE if <$fh> == $$;
		3827	}
		3828
		3829	# a safer delete_package, copied from Symbol
		3830	sub clear_package($) {
		3831	my $pkg = shift;
		3832
		3833	# expand to full symbol table name if needed
		3834	unless ($pkg =~ /^main::.*::$/) {
		3835	$pkg = "main$pkg" if $pkg =~ /^::/;
		3836	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3837	$pkg .= '::' unless $pkg =~ /::$/;
		3838	}
		3839
		3840	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3841	my $stem_symtab = *{$stem}{HASH};
		3842
		3843	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3844	or return;
		3845
		3846	# clear all symbols
		3847	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3848	for my $name (keys %$leaf_symtab) {
		3849	_gv_clear *{"$pkg$name"};
		3850	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3851	}
		3852	}
		3853
2022	sub reload() {	3854	sub do_reload_perl() {
2023	# can/must only be called in main	3855	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	3856	if (in_main) {
2025	warn "can only reload from main coroutine\n";	3857	error "can only reload from main coroutine";
2026	return;	3858	return;
2027	}	3859	}
2028		3860
		3861	return if $RELOAD++;
		3862
		3863	my $t1 = AE::time;
		3864
		3865	while ($RELOAD) {
2029	warn "reloading...";	3866	info "reloading...";
2030		3867
2031	local $FREEZE = 1;	3868	trace "entering sync_job";
		3869
		3870	cf::sync_job {
2032	cf::emergency_save;	3871	cf::emergency_save;
2033		3872
2034	eval {
2035	# if anything goes wrong in here, we should simply crash as we already saved
2036
2037	# cancel all watchers
2038	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}
2041
2042	# cancel all extension coros	3873	trace "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	3874	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	3875	%EXT_CORO = ();
2045		3876
2046	# unload all extensions	3877	trace "removing commands";
2047	for (@exts) {	3878	%COMMAND = ();
2048	warn "unloading <$_>";
2049	unload_extension $_;
2050	}
2051		3879
2052	# unload all modules loaded from $LIBDIR	3880	trace "removing ext/exti commands";
2053	while (my ($k, $v) = each %INC) {	3881	%EXTCMD = ();
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3882	%EXTICMD = ();
2055		3883
2056	warn "removing <$k>";	3884	trace "unloading/nuking all extensions";
2057	delete $INC{$k};	3885	for my $pkg (@EXTS) {
		3886	trace "... unloading $pkg";
2058		3887
2059	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;
2061
2062	if (my $cb = $k->can ("unload_module")) {	3888	if (my $cb = $pkg->can ("unload")) {
		3889	eval {
2063	$cb->();	3890	$cb->($pkg);
		3891	1
		3892	} or error "$pkg unloaded, but with errors: $@";
		3893	}
		3894
		3895	trace "... clearing $pkg";
		3896	clear_package $pkg;
2064	}	3897	}
2065		3898
2066	Symbol::delete_package $k;	3899	trace "unloading all perl modules loaded from $LIBDIR";
		3900	while (my ($k, $v) = each %INC) {
		3901	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3902
		3903	trace "... unloading $k";
		3904	delete $INC{$k};
		3905
		3906	$k =~ s/\.pm$//;
		3907	$k =~ s/\//::/g;
		3908
		3909	if (my $cb = $k->can ("unload_module")) {
		3910	$cb->();
		3911	}
		3912
		3913	clear_package $k;
2067	}	3914	}
2068		3915
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	3916	trace "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	3917	clear_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3918	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		3919
2077	# remove register_script_function callbacks	3920	trace "unloading cf.pm \"a bit\"";
2078	# TODO
2079
2080	# unload cf.pm "a bit"
2081	delete $INC{"cf.pm"};	3921	delete $INC{"cf.pm"};
		3922	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2082		3923
2083	# don't, removes xs symbols, too,	3924	# don't, removes xs symbols, too,
2084	# and global variables created in xs	3925	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	3926	#clear_package __PACKAGE__;
2086		3927
2087	# reload cf.pm	3928	info "unload completed, starting to reload now";
		3929
2088	warn "reloading cf.pm";	3930	trace "reloading cf.pm";
2089	require cf;	3931	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3932	cf::_connect_to_perl_1;
2091		3933
2092	# load config and database again	3934	trace "loading config and database again";
2093	cf::cfg_load;	3935	cf::reload_config;
2094	cf::db_load;
2095		3936
2096	# load extensions
2097	warn "load extensions";	3937	trace "loading extensions";
2098	cf::load_extensions;	3938	cf::load_extensions;
2099		3939
2100	# reattach attachments to objects	3940	if ($REATTACH_ON_RELOAD) {
2101	warn "reattach";	3941	trace "reattaching attachments to objects/players";
2102	_global_reattach;	3942	_global_reattach; # objects, sockets
		3943	trace "reattaching attachments to maps";
		3944	reattach $_ for values %MAP;
		3945	trace "reattaching attachments to players";
		3946	reattach $_ for values %PLAYER;
		3947	}
		3948
		3949	trace "running post_init jobs";
		3950	(pop @POST_INIT)->(1) while @POST_INIT;
		3951
		3952	trace "leaving sync_job";
		3953
		3954	1
		3955	} or do {
		3956	error $@;
		3957	cf::cleanup "error while reloading, exiting.";
		3958	};
		3959
		3960	info "reloaded";
		3961	--$RELOAD;
		3962	}
		3963
		3964	$t1 = AE::time - $t1;
		3965	info "reload completed in ${t1}s\n";
		3966	};
		3967
		3968	our $RELOAD_WATCHER; # used only during reload
		3969
		3970	sub reload_perl() {
		3971	# doing reload synchronously and two reloads happen back-to-back,
		3972	# coro crashes during coro_state_free->destroy here.
		3973
		3974	$RELOAD_WATCHER ||= cf::async {
		3975	Coro::AIO::aio_wait cache_extensions;
		3976
		3977	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3978	do_reload_perl;
		3979	undef $RELOAD_WATCHER;
		3980	};
2103	};	3981	};
2104
2105	if ($@) {
2106	warn $@;
2107	warn "error while reloading, exiting.";
2108	exit 1;
2109	}
2110
2111	warn "reloaded successfully";
2112	};
2113
2114	#############################################################################
2115
2116	unless ($LINK_MAP) {
2117	$LINK_MAP = cf::map::new;
2118
2119	$LINK_MAP->width (41);
2120	$LINK_MAP->height (41);
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,
2129	cb => sub {
2130	$_[0]->w->cancel;
2131
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});
2150
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	3982	}
2156
2157	register "<global>", __PACKAGE__;
2158		3983
2159	register_command "reload" => sub {	3984	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	3985	my ($who, $arg) = @_;
2161		3986
2162	if ($who->flag (FLAG_WIZ)) {	3987	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	3988	$who->message ("reloading server.");
		3989	async {
		3990	$Coro::current->{desc} = "perl_reload";
		3991	reload_perl;
		3992	};
2166	}	3993	}
2167	};	3994	};
2168		3995
2169	unshift @INC, $LIBDIR;	3996	unshift @INC, $LIBDIR;
2170		3997
2171	$TICK_WATCHER = Event->timer (	3998	my $bug_warning = 0;
2172	reentrant => 0,	3999
2173	prio => 0,	4000	our @WAIT_FOR_TICK;
2174	at => $NEXT_TICK || $TICK,	4001	our @WAIT_FOR_TICK_BEGIN;
2175	data => WF_AUTOCANCEL,	4002
2176	cb => sub {	4003	sub wait_for_tick {
2177	unless ($FREEZE) {	4004	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4005
		4006	my $signal = new Coro::Signal;
		4007	push @WAIT_FOR_TICK, $signal;
		4008	$signal->wait;
		4009	}
		4010
		4011	sub wait_for_tick_begin {
		4012	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4013
		4014	my $signal = new Coro::Signal;
		4015	push @WAIT_FOR_TICK_BEGIN, $signal;
		4016	$signal->wait;
		4017	}
		4018
		4019	sub tick {
		4020	if ($Coro::current != $Coro::main) {
		4021	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4022	unless ++$bug_warning > 10;
		4023	return;
		4024	}
		4025
2178	cf::server_tick; # one server iteration	4026	cf::server_tick; # one server iteration
2179	$RUNTIME += $TICK;
2180	}
2181		4027
2182	$NEXT_TICK += $TICK;	4028	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2183		4029
2184	# if we are delayed by four ticks or more, skip them all	4030	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2185	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4031	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2186		4032	Coro::async_pool {
2187	$TICK_WATCHER->at ($NEXT_TICK);	4033	$Coro::current->{desc} = "runtime saver";
2188	$TICK_WATCHER->start;
2189	},
2190	);
2191
2192	IO::AIO::max_poll_time $TICK * 0.2;
2193
2194	Event->io (
2195	fd => IO::AIO::poll_fileno,
2196	poll => 'r',
2197	prio => 5,
2198	data => WF_AUTOCANCEL,
2199	cb => \&IO::AIO::poll_cb,
2200	);
2201
2202	Event->timer (
2203	data => WF_AUTOCANCEL,
2204	after => 0,
2205	interval => 10,
2206	cb => sub {
2207	(Coro::unblock_sub {
2208	write_runtime	4034	write_runtime_sync
2209	or warn "ERROR: unable to write runtime file: $!";	4035	or error "ERROR: unable to write runtime file: $!";
2210	})->();	4036	};
2211	},	4037	}
2212	);	4038
		4039	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4040	$sig->send;
		4041	}
		4042	while (my $sig = shift @WAIT_FOR_TICK) {
		4043	$sig->send;
		4044	}
		4045
		4046	$LOAD = ($NOW - $TICK_START) / $TICK;
		4047	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4048
		4049	if (0) {
		4050	if ($NEXT_TICK) {
		4051	my $jitter = $TICK_START - $NEXT_TICK;
		4052	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4053	debug "jitter $JITTER\n";#d#
		4054	}
		4055	}
		4056	}
		4057
		4058	{
		4059	# configure BDB
		4060
		4061	BDB::min_parallel 16;
		4062	BDB::max_poll_reqs $TICK * 0.1;
		4063	$AnyEvent::BDB::WATCHER->priority (1);
		4064
		4065	unless ($DB_ENV) {
		4066	$DB_ENV = BDB::db_env_create;
		4067	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4068	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4069	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4070	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4071	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4072
		4073	cf::sync_job {
		4074	eval {
		4075	BDB::db_env_open
		4076	$DB_ENV,
		4077	$BDBDIR,
		4078	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4079	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4080	0666;
		4081
		4082	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4083	};
		4084
		4085	cf::cleanup "db_env_open(db): $@" if $@;
		4086	};
		4087	}
		4088
		4089	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4090	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4091	};
		4092	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4093	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4094	};
		4095	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4096	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4097	};
		4098	}
		4099
		4100	{
		4101	# configure IO::AIO
		4102
		4103	IO::AIO::min_parallel 8;
		4104	IO::AIO::max_poll_time $TICK * 0.1;
		4105	undef $AnyEvent::AIO::WATCHER;
		4106	}
		4107
		4108	my $_log_backtrace;
		4109
		4110	sub _log_backtrace {
		4111	my ($msg, @addr) = @_;
		4112
		4113	$msg =~ s/\n//;
		4114
		4115	# limit the # of concurrent backtraces
		4116	if ($_log_backtrace < 2) {
		4117	++$_log_backtrace;
		4118	my $perl_bt = Carp::longmess $msg;
		4119	async {
		4120	$Coro::current->{desc} = "abt $msg";
		4121
		4122	my @bt = fork_call {
		4123	@addr = map { sprintf "%x", $_ } @addr;
		4124	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4125	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4126	or die "addr2line: $!";
		4127
		4128	my @funcs;
		4129	my @res = <$fh>;
		4130	chomp for @res;
		4131	while (@res) {
		4132	my ($func, $line) = splice @res, 0, 2, ();
		4133	push @funcs, "[$func] $line";
		4134	}
		4135
		4136	@funcs
		4137	};
		4138
		4139	LOG llevInfo, "[ABT] $perl_bt\n";
		4140	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4141	LOG llevInfo, "[ABT] $_\n" for @bt;
		4142	--$_log_backtrace;
		4143	};
		4144	} else {
		4145	LOG llevInfo, "[ABT] $msg\n";
		4146	LOG llevInfo, "[ABT] [suppressed]\n";
		4147	}
		4148	}
		4149
		4150	# load additional modules
		4151	require "cf/$_.pm" for @EXTRA_MODULES;
		4152	cf::_connect_to_perl_2;
2213		4153
2214	END { cf::emergency_save }	4154	END { cf::emergency_save }
2215		4155
2216	1	4156	1
2217		4157

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