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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.140 by root, Fri Jan 5 20:04:02 2007 UTC vs.
Revision 1.542 by root, Wed May 5 09:05:03 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 (Coro::PRIO_MAX); # 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
32		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" };
		78
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE; # unused
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	121	our $NEXT_TICK;
45	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
46		130
47	our %CFG;	131	our %CFG;
48		132
49	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
51		136
52	our %MAP; # all maps	137	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	138	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	139	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	140
		141	# used to convert map paths into valid unix filenames by replacing / by ∕
		142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
56		153
57	binmode STDOUT;	154	binmode STDOUT;
58	binmode STDERR;	155	binmode STDERR;
59		156
60	# read virtual server time, if available	157	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
65	}	162	}
66		163
67	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		165
73	# a special map that is always available	166	mkdir $_
74	our $LINK_MAP;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		168
75	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
		170
		171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
76		187
77	#############################################################################	188	#############################################################################
78		189
79	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
80		191
…		…
87	=item $cf::RUNTIME	198	=item $cf::RUNTIME
88		199
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	201	every server tick.
91		202
92	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		206
94	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
96		211
97	=item $cf::NOW	212	=item $cf::NOW
98		213
99	The time of the last (current) server tick.	214	The time of the last (current) server tick.
100		215
101	=item $cf::TICK	216	=item $cf::TICK
102		217
103	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
104		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
105	=item %cf::CFG	230	=item %cf::CFG
106		231
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	233	from wherever your confdir points to.
109		234
		235	=item cf::wait_for_tick, cf::wait_for_tick_begin
		236
		237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		238	returns directly I<after> the tick processing (and consequently, can only wake one process
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
		252
110	=back	253	=back
111		254
112	=cut	255	=cut
113		256
114	BEGIN {	257	sub error(@) { LOG llevError, join "", @_ }
115	*CORE::GLOBAL::warn = sub {	258	sub warn (@) { LOG llevWarn , join "", @_ }
		259	sub info (@) { LOG llevInfo , join "", @_ }
		260	sub debug(@) { LOG llevDebug, join "", @_ }
		261	sub trace(@) { LOG llevTrace, join "", @_ }
		262
		263	$Coro::State::WARNHOOK = sub {
116	my $msg = join "", @_;	264	my $msg = join "", @_;
117	utf8::encode $msg;
118		265
119	$msg .= "\n"	266	$msg .= "\n"
120	unless $msg =~ /\n$/;	267	unless $msg =~ /\n$/;
121		268
122	LOG llevError, "cfperl: $msg";	269	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
123	};	270
124	}	271	LOG llevWarn, $msg;
		272	};
		273
		274	$Coro::State::DIEHOOK = sub {
		275	return unless $^S eq 0; # "eq", not "=="
		276
		277	error Carp::longmess $_[0];
		278
		279	if (in_main) {#d#
		280	error "DIEHOOK called in main context, Coro bug?\n";#d#
		281	return;#d#
		282	}#d#
		283
		284	# kill coroutine otherwise
		285	Coro::terminate
		286	};
125		287
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	288	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	289	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	290	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	291	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	292	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		293	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	294	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		295
133	# we bless all objects into (empty) derived classes to force a method lookup	296	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	297	# within the Safe compartment.
135	for my $pkg (qw(	298	for my $pkg (qw(
136	cf::global cf::attachable	299	cf::global cf::attachable
137	cf::object cf::object::player	300	cf::object cf::object::player
138	cf::client cf::player	301	cf::client cf::player
139	cf::arch cf::living	302	cf::arch cf::living
		303	cf::map cf::mapspace
140	cf::map cf::party cf::region	304	cf::party cf::region
141	)) {	305	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	306	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	307	}
145		308
146	$Event::DIED = sub {	309	$EV::DIED = sub {
147	warn "error in event callback: @_";	310	Carp::cluck "error in event callback: @_";
148	};	311	};
149		312
150	my %ext_pkg;	313	#############################################################################
151	my @exts;
152	my @hook;
153		314
154	=head2 UTILITY FUNCTIONS	315	=head2 UTILITY FUNCTIONS
155		316
156	=over 4	317	=over 4
157		318
158	=cut	319	=item dumpval $ref
159		320
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	321	=cut
161		322
		323	sub dumpval {
		324	eval {
		325	local $SIG{__DIE__};
		326	my $d;
		327	if (1) {
		328	$d = new Data::Dumper([$_[0]], ["*var"]);
		329	$d->Terse(1);
		330	$d->Indent(2);
		331	$d->Quotekeys(0);
		332	$d->Useqq(1);
		333	#$d->Bless(...);
		334	$d->Seen($_[1]) if @_ > 1;
		335	$d = $d->Dump();
		336	}
		337	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		338	$d
		339	} || "[unable to dump $_[0]: '$@']";
		340	}
		341
162	=item $ref = cf::from_json $json	342	=item $ref = cf::decode_json $json
163		343
164	Converts a JSON string into the corresponding perl data structure.	344	Converts a JSON string into the corresponding perl data structure.
165		345
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	346	=item $json = cf::encode_json $ref
174		347
175	Converts a perl data structure into its JSON representation.	348	Converts a perl data structure into its JSON representation.
176		349
177	=cut	350	=cut
178		351
179	sub to_json($) {	352	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	353
181	JSON::Syck::Dump $_[0]	354	sub encode_json($) { $json_coder->encode ($_[0]) }
		355	sub decode_json($) { $json_coder->decode ($_[0]) }
		356
		357	=item cf::post_init { BLOCK }
		358
		359	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		360	but I<before> the server starts ticking again.
		361
		362	The cdoeblock will have a single boolean argument to indicate whether this
		363	is a reload or not.
		364
		365	=cut
		366
		367	sub post_init(&) {
		368	push @POST_INIT, shift;
182	}	369	}
183		370
184	=item cf::lock_wait $string	371	=item cf::lock_wait $string
185		372
186	Wait until the given lock is available. See cf::lock_acquire.	373	Wait until the given lock is available. See cf::lock_acquire.
187		374
188	=item my $lock = cf::lock_acquire $string	375	=item my $lock = cf::lock_acquire $string
189		376
190	Wait until the given lock is available and then acquires it and returns	377	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	378	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	379	for example when the coroutine gets canceled), the lock is automatically
193	returned.	380	returned.
194		381
		382	Locks are *not* recursive, locking from the same coro twice results in a
		383	deadlocked coro.
		384
195	Lock names should begin with a unique identifier (for example, cf::map::find	385	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	386	uses map_find and cf::map::load uses map_load).
197		387
198	=cut	388	=item $locked = cf::lock_active $string
199		389
200	our %LOCK;	390	Return true if the lock is currently active, i.e. somebody has locked it.
		391
		392	=cut
		393
		394	our $LOCKS = new Coro::SemaphoreSet;
201		395
202	sub lock_wait($) {	396	sub lock_wait($) {
203	my ($key) = @_;	397	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	398	}
211		399
212	sub lock_acquire($) {	400	sub lock_acquire($) {
213	my ($key) = @_;	401	$LOCKS->guard ($_[0])
		402	}
214		403
215	# wait, to be sure we are not locked	404	sub lock_active($) {
216	lock_wait $key;	405	$LOCKS->count ($_[0]) < 1
217
218	$LOCK{$key} = [];
219
220	Coro::guard {
221	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };
223	}
224	}	406	}
225		407
226	sub freeze_mainloop {	408	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	409	tick_inhibit_inc;
228		410
229	my $guard = Coro::guard { $TICK_WATCHER->start };	411	&Guard::guard (\&tick_inhibit_dec);
230	$TICK_WATCHER->stop;	412	}
231	$guard	413
		414	=item cf::periodic $interval, $cb
		415
		416	Like EV::periodic, but randomly selects a starting point so that the actions
		417	get spread over time.
		418
		419	=cut
		420
		421	sub periodic($$) {
		422	my ($interval, $cb) = @_;
		423
		424	my $start = rand List::Util::min 180, $interval;
		425
		426	EV::periodic $start, $interval, 0, $cb
		427	}
		428
		429	=item cf::get_slot $time[, $priority[, $name]]
		430
		431	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		432	This call blocks and returns only when you have at least C<$time> seconds
		433	of cpu time till the next tick. The slot is only valid till the next cede.
		434
		435	The optional C<$name> can be used to identify the job to run. It might be
		436	used for statistical purposes and should identify the same time-class.
		437
		438	Useful for short background jobs.
		439
		440	=cut
		441
		442	our @SLOT_QUEUE;
		443	our $SLOT_QUEUE;
		444	our $SLOT_DECAY = 0.9;
		445
		446	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		447	$SLOT_QUEUE = Coro::async {
		448	$Coro::current->desc ("timeslot manager");
		449
		450	my $signal = new Coro::Signal;
		451	my $busy;
		452
		453	while () {
		454	next_job:
		455
		456	my $avail = cf::till_tick;
		457
		458	for (0 .. $#SLOT_QUEUE) {
		459	if ($SLOT_QUEUE[$_][0] <= $avail) {
		460	$busy = 0;
		461	my $job = splice @SLOT_QUEUE, $_, 1, ();
		462	$job->[2]->send;
		463	Coro::cede;
		464	goto next_job;
		465	} else {
		466	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		467	}
		468	}
		469
		470	if (@SLOT_QUEUE) {
		471	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		472	push @cf::WAIT_FOR_TICK, $signal;
		473	$signal->wait;
		474	} else {
		475	$busy = 0;
		476	Coro::schedule;
		477	}
		478	}
		479	};
		480
		481	sub get_slot($;$$) {
		482	return if tick_inhibit || $Coro::current == $Coro::main;
		483
		484	my ($time, $pri, $name) = @_;
		485
		486	$time = clamp $time, 0.01, $TICK * .6;
		487
		488	my $sig = new Coro::Signal;
		489
		490	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		491	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		492	$SLOT_QUEUE->ready;
		493	$sig->wait;
232	}	494	}
233		495
234	=item cf::async { BLOCK }	496	=item cf::async { BLOCK }
235		497
236	Currently the same as Coro::async_pool, meaning you cannot use	498	Currently the same as Coro::async_pool, meaning you cannot use
…		…
241		503
242	BEGIN { *async = \&Coro::async_pool }	504	BEGIN { *async = \&Coro::async_pool }
243		505
244	=item cf::sync_job { BLOCK }	506	=item cf::sync_job { BLOCK }
245		507
246	The design of crossfire+ requires that the main coro ($Coro::main) is	508	The design of Deliantra requires that the main coroutine ($Coro::main)
247	always able to handle events or runnable, as crossfire+ is only partly	509	is always able to handle events or runnable, as Deliantra is only
248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	510	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		511	acceptable.
249		512
250	If it must be done, put the blocking parts into C<sync_job>. This will run	513	If it must be done, put the blocking parts into C<sync_job>. This will run
251	the given BLOCK in another coroutine while waiting for the result. The	514	the given BLOCK in another coroutine while waiting for the result. The
252	server will be frozen during this time, so the block should either finish	515	server will be frozen during this time, so the block should either finish
253	fast or be very important.	516	fast or be very important.
…		…
255	=cut	518	=cut
256		519
257	sub sync_job(&) {	520	sub sync_job(&) {
258	my ($job) = @_;	521	my ($job) = @_;
259		522
260	if ($Coro::current == $Coro::main) {	523	if (in_main) {
		524	my $time = AE::time;
		525
261	# this is the main coro, too bad, we have to block	526	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	527	# till the operation succeeds, freezing the server :/
263		528
264	# TODO: use suspend/resume instead	529	#LOG llevError, Carp::longmess "sync job";#d#
265	# (but this is cancel-safe)	530
266	my $freeze_guard = freeze_mainloop;	531	my $freeze_guard = freeze_mainloop;
267		532
268	my $busy = 1;	533	my $busy = 1;
269	my @res;	534	my @res;
270		535
271	(async {	536	(async {
		537	$Coro::current->desc ("sync job coro");
272	@res = eval { $job->() };	538	@res = eval { $job->() };
273	warn $@ if $@;	539	error $@ if $@;
274	undef $busy;	540	undef $busy;
275	})->prio (Coro::PRIO_MAX);	541	})->prio (Coro::PRIO_MAX);
276		542
277	while ($busy) {	543	while ($busy) {
278	unless (Coro::cede) {	544	if (Coro::nready) {
279	Coro::nready ? Event::one_event 0 : Event::one_event;
280	Coro::cede_notself unless Coro::cede;	545	Coro::cede_notself;
		546	} else {
		547	EV::loop EV::LOOP_ONESHOT;
281	}	548	}
282	}	549	}
		550
		551	my $time = AE::time - $time;
		552
		553	$TICK_START += $time; # do not account sync jobs to server load
283		554
284	wantarray ? @res : $res[0]	555	wantarray ? @res : $res[0]
285	} else {	556	} else {
286	# we are in another coroutine, how wonderful, everything just works	557	# we are in another coroutine, how wonderful, everything just works
287		558
…		…
289	}	560	}
290	}	561	}
291		562
292	=item $coro = cf::async_ext { BLOCK }	563	=item $coro = cf::async_ext { BLOCK }
293		564
294	Like async, but this coro is automcatially being canceled when the	565	Like async, but this coro is automatically being canceled when the
295	extension calling this is being unloaded.	566	extension calling this is being unloaded.
296		567
297	=cut	568	=cut
298		569
299	sub async_ext(&) {	570	sub async_ext(&) {
…		…
307	$EXT_CORO{$coro+0} = $coro;	578	$EXT_CORO{$coro+0} = $coro;
308		579
309	$coro	580	$coro
310	}	581	}
311		582
312	sub write_runtime {	583	=item fork_call { }, $args
313	my $runtime = cf::localdir . "/runtime";
314		584
315	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	585	Executes the given code block with the given arguments in a seperate
316	or return;	586	process, returning the results. Everything must be serialisable with
		587	Coro::Storable. May, of course, block. Note that the executed sub may
		588	never block itself or use any form of event handling.
317		589
318	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	590	=cut
319	(aio_write $fh, 0, (length $value), $value, 0) <= 0
320	and return;
321		591
322	aio_fsync $fh	592	sub fork_call(&@) {
323	and return;	593	my ($cb, @args) = @_;
324		594
325	close $fh	595	# we seemingly have to make a local copy of the whole thing,
326	or return;	596	# otherwise perl prematurely frees the stuff :/
		597	# TODO: investigate and fix (likely this will be rather laborious)
327		598
328	aio_rename "$runtime~", $runtime	599	my @res = Coro::Util::fork_eval {
329	and return;	600	reset_signals;
		601	&$cb
		602	}, @args;
330		603
		604	wantarray ? @res : $res[-1]
		605	}
		606
		607	sub objinfo {
331	1	608	(
		609	"counter value" => cf::object::object_count,
		610	"objects created" => cf::object::create_count,
		611	"objects destroyed" => cf::object::destroy_count,
		612	"freelist size" => cf::object::free_count,
		613	"allocated objects" => cf::object::objects_size,
		614	"active objects" => cf::object::actives_size,
		615	)
		616	}
		617
		618	=item $coin = coin_from_name $name
		619
		620	=cut
		621
		622	our %coin_alias = (
		623	"silver" => "silvercoin",
		624	"silvercoin" => "silvercoin",
		625	"silvercoins" => "silvercoin",
		626	"gold" => "goldcoin",
		627	"goldcoin" => "goldcoin",
		628	"goldcoins" => "goldcoin",
		629	"platinum" => "platinacoin",
		630	"platinumcoin" => "platinacoin",
		631	"platinumcoins" => "platinacoin",
		632	"platina" => "platinacoin",
		633	"platinacoin" => "platinacoin",
		634	"platinacoins" => "platinacoin",
		635	"royalty" => "royalty",
		636	"royalties" => "royalty",
		637	);
		638
		639	sub coin_from_name($) {
		640	$coin_alias{$_[0]}
		641	? cf::arch::find $coin_alias{$_[0]}
		642	: undef
		643	}
		644
		645	=item $value = cf::db_get $family => $key
		646
		647	Returns a single value from the environment database.
		648
		649	=item cf::db_put $family => $key => $value
		650
		651	Stores the given C<$value> in the family. It can currently store binary
		652	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		653
		654	=item $db = cf::db_table "name"
		655
		656	Create and/or open a new database table. The string must not be "db" and must be unique
		657	within each server.
		658
		659	=cut
		660
		661	sub db_table($) {
		662	cf::error "db_get called from main context"
		663	if $Coro::current == $Coro::main;
		664
		665	my ($name) = @_;
		666	my $db = BDB::db_create $DB_ENV;
		667
		668	eval {
		669	$db->set_flags (BDB::CHKSUM);
		670
		671	utf8::encode $name;
		672	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		673	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		674	cf::cleanup "db_open(db): $!" if $!;
		675	};
		676	cf::cleanup "db_open(db): $@" if $@;
		677
		678	$db
		679	}
		680
		681	our $DB;
		682
		683	sub db_init {
		684	$DB ||= db_table "db";
		685	}
		686
		687	sub db_get($$) {
		688	my $key = "$_[0]/$_[1]";
		689
		690	cf::error "db_get called from main context"
		691	if $Coro::current == $Coro::main;
		692
		693	BDB::db_get $DB, undef, $key, my $data;
		694
		695	$! ? ()
		696	: $data
		697	}
		698
		699	sub db_put($$$) {
		700	BDB::dbreq_pri 4;
		701	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		702	}
		703
		704	=item cf::cache $id => [$paths...], $processversion => $process
		705
		706	Generic caching function that returns the value of the resource $id,
		707	caching and regenerating as required.
		708
		709	This function can block.
		710
		711	=cut
		712
		713	sub cache {
		714	my ($id, $src, $processversion, $process) = @_;
		715
		716	my $meta =
		717	join "\x00",
		718	$processversion,
		719	map {
		720	aio_stat $_
		721	and Carp::croak "$_: $!";
		722
		723	($_, (stat _)[7,9])
		724	} @$src;
		725
		726	my $dbmeta = db_get cache => "$id/meta";
		727	if ($dbmeta ne $meta) {
		728	# changed, we may need to process
		729
		730	my @data;
		731	my $md5;
		732
		733	for (0 .. $#$src) {
		734	0 <= aio_load $src->[$_], $data[$_]
		735	or Carp::croak "$src->[$_]: $!";
		736	}
		737
		738	# if processing is expensive, check
		739	# checksum first
		740	if (1) {
		741	$md5 =
		742	join "\x00",
		743	$processversion,
		744	map {
		745	cf::cede_to_tick;
		746	($src->[$_], Digest::MD5::md5_hex $data[$_])
		747	} 0.. $#$src;
		748
		749
		750	my $dbmd5 = db_get cache => "$id/md5";
		751	if ($dbmd5 eq $md5) {
		752	db_put cache => "$id/meta", $meta;
		753
		754	return db_get cache => "$id/data";
		755	}
		756	}
		757
		758	my $t1 = Time::HiRes::time;
		759	my $data = $process->(\@data);
		760	my $t2 = Time::HiRes::time;
		761
		762	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		763
		764	db_put cache => "$id/data", $data;
		765	db_put cache => "$id/md5" , $md5;
		766	db_put cache => "$id/meta", $meta;
		767
		768	return $data;
		769	}
		770
		771	db_get cache => "$id/data"
		772	}
		773
		774	=item cf::datalog type => key => value, ...
		775
		776	Log a datalog packet of the given type with the given key-value pairs.
		777
		778	=cut
		779
		780	sub datalog($@) {
		781	my ($type, %kv) = @_;
		782	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
332	}	783	}
333		784
334	=back	785	=back
335		786
336	=cut	787	=cut
337		788
338	#############################################################################	789	#############################################################################
339		790
340	package cf::path;
341
342	sub new {
343	my ($class, $path, $base) = @_;
344
345	$path = $path->as_string if ref $path;
346
347	my $self = bless { }, $class;
348
349	# {... are special paths that are not touched
350	# ?xxx/... are special absolute paths
351	# ?random/... random maps
352	# /! non-realised random map exit
353	# /... normal maps
354	# ~/... per-player maps without a specific player (DO NOT USE)
355	# ~user/... per-player map of a specific user
356
357	if ($path =~ /^{/) {
358	# fine as it is
359	} elsif ($path =~ s{^\?random/}{}) {
360	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
361	$self->{random} = cf::from_json $data;
362	} else {
363	if ($path =~ s{^~([^/]+)?}{}) {
364	$self->{user_rel} = 1;
365
366	if (defined $1) {
367	$self->{user} = $1;
368	} elsif ($base =~ m{^~([^/]+)/}) {
369	$self->{user} = $1;
370	} else {
371	warn "cannot resolve user-relative path without user <$path,$base>\n";
372	}
373	} elsif ($path =~ /^\//) {
374	# already absolute
375	} else {
376	$base =~ s{[^/]+/?$}{};
377	return $class->new ("$base/$path");
378	}
379
380	for ($path) {
381	redo if s{/\.?/}{/};
382	redo if s{/[^/]+/\.\./}{/};
383	}
384	}
385
386	$self->{path} = $path;
387
388	$self
389	}
390
391	# the name / primary key / in-game path
392	sub as_string {
393	my ($self) = @_;
394
395	$self->{user_rel} ? "~$self->{user}$self->{path}"
396	: $self->{random} ? "?random/$self->{path}"
397	: $self->{path}
398	}
399
400	# the displayed name, this is a one way mapping
401	sub visible_name {
402	my ($self) = @_;
403
404	# if (my $rmp = $self->{random}) {
405	# # todo: be more intelligent about this
406	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
407	# } else {
408	$self->as_string
409	# }
410	}
411
412	# escape the /'s in the path
413	sub _escaped_path {
414	# ∕ is U+2215
415	(my $path = $_[0]{path}) =~ s/\//∕/g;
416	$path
417	}
418
419	# the original (read-only) location
420	sub load_path {
421	my ($self) = @_;
422
423	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
424	}
425
426	# the temporary/swap location
427	sub save_path {
428	my ($self) = @_;
429
430	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
431	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
432	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
433	}
434
435	# the unique path, might be eq to save_path
436	sub uniq_path {
437	my ($self) = @_;
438
439	$self->{user_rel} || $self->{random}
440	? undef
441	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
442	}
443
444	# return random map parameters, or undef
445	sub random_map_params {
446	my ($self) = @_;
447
448	$self->{random}
449	}
450
451	# this is somewhat ugly, but style maps do need special treatment
452	sub is_style_map {
453	$_[0]{path} =~ m{^/styles/}
454	}
455
456	package cf;
457
458	#############################################################################
459
460	=head2 ATTACHABLE OBJECTS	791	=head2 ATTACHABLE OBJECTS
461		792
462	Many objects in crossfire are so-called attachable objects. That means you can	793	Many objects in deliantra are so-called attachable objects. That means you can
463	attach callbacks/event handlers (a collection of which is called an "attachment")	794	attach callbacks/event handlers (a collection of which is called an "attachment")
464	to it. All such attachable objects support the following methods.	795	to it. All such attachable objects support the following methods.
465		796
466	In the following description, CLASS can be any of C<global>, C<object>	797	In the following description, CLASS can be any of C<global>, C<object>
467	C<player>, C<client> or C<map> (i.e. the attachable objects in	798	C<player>, C<client> or C<map> (i.e. the attachable objects in
468	crossfire+).	799	Deliantra).
469		800
470	=over 4	801	=over 4
471		802
472	=item $attachable->attach ($attachment, key => $value...)	803	=item $attachable->attach ($attachment, key => $value...)
473		804
…		…
517	=item cf::CLASS::attachment $name, ...	848	=item cf::CLASS::attachment $name, ...
518		849
519	Register an attachment by C<$name> through which attachable objects of the	850	Register an attachment by C<$name> through which attachable objects of the
520	given CLASS can refer to this attachment.	851	given CLASS can refer to this attachment.
521		852
522	Some classes such as crossfire maps and objects can specify attachments	853	Some classes such as deliantra maps and objects can specify attachments
523	that are attached at load/instantiate time, thus the need for a name.	854	that are attached at load/instantiate time, thus the need for a name.
524		855
525	These calls expect any number of the following handler/hook descriptions:	856	These calls expect any number of the following handler/hook descriptions:
526		857
527	=over 4	858	=over 4
…		…
587	our @CB_TYPE = (); # registry for type (cf-object class) based events	918	our @CB_TYPE = (); # registry for type (cf-object class) based events
588	our @CB_MAP = ();	919	our @CB_MAP = ();
589		920
590	my %attachment;	921	my %attachment;
591		922
		923	sub cf::attachable::thawer_merge {
		924	# simply override everything except _meta
		925	local $_[0]{_meta};
		926	%{$_[0]} = %{$_[1]};
		927	}
		928
592	sub _attach_cb($$$$) {	929	sub _attach_cb($$$$) {
593	my ($registry, $event, $prio, $cb) = @_;	930	my ($registry, $event, $prio, $cb) = @_;
594		931
595	use sort 'stable';	932	use sort 'stable';
596		933
…		…
630	$registry = $CB_TYPE[$object_type] ||= [];	967	$registry = $CB_TYPE[$object_type] ||= [];
631		968
632	} elsif ($type eq "subtype") {	969	} elsif ($type eq "subtype") {
633	defined $object_type or Carp::croak "subtype specified without type";	970	defined $object_type or Carp::croak "subtype specified without type";
634	my $object_subtype = shift @arg;	971	my $object_subtype = shift @arg;
635	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	972	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
636		973
637	} elsif ($type eq "package") {	974	} elsif ($type eq "package") {
638	my $pkg = shift @arg;	975	my $pkg = shift @arg;
639		976
640	while (my ($name, $id) = each %cb_id) {	977	while (my ($name, $id) = each %cb_id) {
…		…
645		982
646	} elsif (exists $cb_id{$type}) {	983	} elsif (exists $cb_id{$type}) {
647	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	984	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
648		985
649	} elsif (ref $type) {	986	} elsif (ref $type) {
650	warn "attaching objects not supported, ignoring.\n";	987	error "attaching objects not supported, ignoring.\n";
651		988
652	} else {	989	} else {
653	shift @arg;	990	shift @arg;
654	warn "attach argument '$type' not supported, ignoring.\n";	991	error "attach argument '$type' not supported, ignoring.\n";
655	}	992	}
656	}	993	}
657	}	994	}
658		995
659	sub _object_attach {	996	sub _object_attach {
…		…
669	_attach $registry, $klass, @attach;	1006	_attach $registry, $klass, @attach;
670	}	1007	}
671		1008
672	$obj->{$name} = \%arg;	1009	$obj->{$name} = \%arg;
673	} else {	1010	} else {
674	warn "object uses attachment '$name' that is not available, postponing.\n";	1011	info "object uses attachment '$name' which is not available, postponing.\n";
675	}	1012	}
676		1013
677	$obj->{_attachment}{$name} = undef;	1014	$obj->{_attachment}{$name} = undef;
678	}	1015	}
679		1016
…		…
681	if (ref $_[0]) {	1018	if (ref $_[0]) {
682	_object_attach @_;	1019	_object_attach @_;
683	} else {	1020	} else {
684	_attach shift->_attach_registry, @_;	1021	_attach shift->_attach_registry, @_;
685	}	1022	}
		1023	_recalc_want;
686	};	1024	};
687		1025
688	# all those should be optimised	1026	# all those should be optimised
689	sub cf::attachable::detach {	1027	sub cf::attachable::detach {
690	my ($obj, $name) = @_;	1028	my ($obj, $name) = @_;
…		…
693	delete $obj->{_attachment}{$name};	1031	delete $obj->{_attachment}{$name};
694	reattach ($obj);	1032	reattach ($obj);
695	} else {	1033	} else {
696	Carp::croak "cannot, currently, detach class attachments";	1034	Carp::croak "cannot, currently, detach class attachments";
697	}	1035	}
		1036	_recalc_want;
698	};	1037	};
699		1038
700	sub cf::attachable::attached {	1039	sub cf::attachable::attached {
701	my ($obj, $name) = @_;	1040	my ($obj, $name) = @_;
702		1041
…		…
717	";	1056	";
718	die if $@;	1057	die if $@;
719	}	1058	}
720		1059
721	our $override;	1060	our $override;
722	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1061	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
723		1062
724	sub override {	1063	sub override {
725	$override = 1;	1064	$override = 1;
726	@invoke_results = ();	1065	@INVOKE_RESULTS = (@_);
727	}	1066	}
728		1067
729	sub do_invoke {	1068	sub do_invoke {
730	my $event = shift;	1069	my $event = shift;
731	my $callbacks = shift;	1070	my $callbacks = shift;
732		1071
733	@invoke_results = ();	1072	@INVOKE_RESULTS = ();
734		1073
735	local $override;	1074	local $override;
736		1075
737	for (@$callbacks) {	1076	for (@$callbacks) {
738	eval { &{$_->[1]} };	1077	eval { &{$_->[1]} };
739		1078
740	if ($@) {	1079	if ($@) {
741	warn "$@";
742	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1080	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
743	override;	1081	override;
744	}	1082	}
745		1083
746	return 1 if $override;	1084	return 1 if $override;
747	}	1085	}
748		1086
749	0	1087	0
750	}	1088	}
751		1089
752	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1090	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
753		1091
754	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1092	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
755		1093
756	Generate an object-specific event with the given arguments.	1094	Generate an object-specific event with the given arguments.
757		1095
758	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1096	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
759	removed in future versions), and there is no public API to access override	1097	removed in future versions), and there is no public API to access override
760	results (if you must, access C<@cf::invoke_results> directly).	1098	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
761		1099
762	=back	1100	=back
763		1101
764	=cut	1102	=cut
765		1103
766	#############################################################################	1104	#############################################################################
767	# object support	1105	# object support
		1106
		1107	sub _object_equal($$);
		1108	sub _object_equal($$) {
		1109	my ($a, $b) = @_;
		1110
		1111	return 0 unless (ref $a) eq (ref $b);
		1112
		1113	if ("HASH" eq ref $a) {
		1114	my @ka = keys %$a;
		1115	my @kb = keys %$b;
		1116
		1117	return 0 if @ka != @kb;
		1118
		1119	for (0 .. $#ka) {
		1120	return 0 unless $ka[$_] eq $kb[$_];
		1121	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1122	}
		1123
		1124	} elsif ("ARRAY" eq ref $a) {
		1125
		1126	return 0 if @$a != @$b;
		1127
		1128	for (0 .. $#$a) {
		1129	return 0 unless _object_equal $a->[$_], $b->[$_];
		1130	}
		1131
		1132	} elsif ($a ne $b) {
		1133	return 0;
		1134	}
		1135
		1136	1
		1137	}
		1138
		1139	our $SLOW_MERGES;#d#
		1140	sub _can_merge {
		1141	my ($ob1, $ob2) = @_;
		1142
		1143	++$SLOW_MERGES;#d#
		1144
		1145	# we do the slow way here
		1146	return _object_equal $ob1, $ob2
		1147	}
768		1148
769	sub reattach {	1149	sub reattach {
770	# basically do the same as instantiate, without calling instantiate	1150	# basically do the same as instantiate, without calling instantiate
771	my ($obj) = @_;	1151	my ($obj) = @_;
		1152
		1153	# no longer needed after getting rid of delete_package?
		1154	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		1155
773	my $registry = $obj->registry;	1156	my $registry = $obj->registry;
774		1157
775	@$registry = ();	1158	@$registry = ();
776		1159
…		…
781	for (@$attach) {	1164	for (@$attach) {
782	my ($klass, @attach) = @$_;	1165	my ($klass, @attach) = @$_;
783	_attach $registry, $klass, @attach;	1166	_attach $registry, $klass, @attach;
784	}	1167	}
785	} else {	1168	} else {
786	warn "object uses attachment '$name' that is not available, postponing.\n";	1169	info "object uses attachment '$name' that is not available, postponing.\n";
787	}	1170	}
788	}	1171	}
789	}	1172	}
790		1173
791	cf::attachable->attach (	1174	cf::attachable->attach (
792	prio => -1000000,	1175	prio => -1000000,
793	on_instantiate => sub {	1176	on_instantiate => sub {
794	my ($obj, $data) = @_;	1177	my ($obj, $data) = @_;
795		1178
796	$data = from_json $data;	1179	$data = decode_json $data;
797		1180
798	for (@$data) {	1181	for (@$data) {
799	my ($name, $args) = @$_;	1182	my ($name, $args) = @$_;
800		1183
801	$obj->attach ($name, %{$args || {} });	1184	$obj->attach ($name, %{$args || {} });
…		…
817	sub object_freezer_save {	1200	sub object_freezer_save {
818	my ($filename, $rdata, $objs) = @_;	1201	my ($filename, $rdata, $objs) = @_;
819		1202
820	sync_job {	1203	sync_job {
821	if (length $$rdata) {	1204	if (length $$rdata) {
		1205	utf8::decode (my $decname = $filename);
822	warn sprintf "saving %s (%d,%d)\n",	1206	trace sprintf "saving %s (%d,%d)\n",
823	$filename, length $$rdata, scalar @$objs;	1207	$decname, length $$rdata, scalar @$objs
		1208	if $VERBOSE_IO;
824		1209
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1210	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	1211	aio_chmod $fh, SAVE_MODE;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1212	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1213	if ($cf::USE_FSYNC) {
		1214	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
828	aio_fsync $fh;	1215	aio_fsync $fh;
		1216	}
829	close $fh;	1217	aio_close $fh;
830		1218
831	if (@$objs) {	1219	if (@$objs) {
832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1220	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
833	chmod SAVE_MODE, $fh;	1221	aio_chmod $fh, SAVE_MODE;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	1222	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	1223	aio_write $fh, 0, (length $data), $data, 0;
		1224	if ($cf::USE_FSYNC) {
		1225	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
836	aio_fsync $fh;	1226	aio_fsync $fh;
		1227	}
837	close $fh;	1228	aio_close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	1229	aio_rename "$filename.pst~", "$filename.pst";
839	}	1230	}
840	} else {	1231	} else {
841	aio_unlink "$filename.pst";	1232	aio_unlink "$filename.pst";
842	}	1233	}
843		1234
844	aio_rename "$filename~", $filename;	1235	aio_rename "$filename~", $filename;
		1236
		1237	$filename =~ s%/[^/]+$%%;
		1238	aio_pathsync $filename if $cf::USE_FSYNC;
845	} else {	1239	} else {
846	warn "FATAL: $filename~: $!\n";	1240	error "unable to save objects: $filename~: $!\n";
847	}	1241	}
848	} else {	1242	} else {
849	aio_unlink $filename;	1243	aio_unlink $filename;
850	aio_unlink "$filename.pst";	1244	aio_unlink "$filename.pst";
851	}	1245	}
852	}	1246	};
853	}	1247	}
854		1248
855	sub object_freezer_as_string {	1249	sub object_freezer_as_string {
856	my ($rdata, $objs) = @_;	1250	my ($rdata, $objs) = @_;
857		1251
…		…
869	or return;	1263	or return;
870		1264
871	unless (aio_stat "$filename.pst") {	1265	unless (aio_stat "$filename.pst") {
872	(aio_load "$filename.pst", $av) >= 0	1266	(aio_load "$filename.pst", $av) >= 0
873	or return;	1267	or return;
		1268
874	$av = eval { (Storable::thaw $av)->{objs} };	1269	my $st = eval { Coro::Storable::thaw $av };
		1270	$av = $st->{objs};
875	}	1271	}
876		1272
		1273	utf8::decode (my $decname = $filename);
877	warn sprintf "loading %s (%d)\n",	1274	trace sprintf "loading %s (%d,%d)\n",
878	$filename, length $data, scalar @{$av || []};#d#	1275	$decname, length $data, scalar @{$av || []}
		1276	if $VERBOSE_IO;
		1277
879	return ($data, $av);	1278	($data, $av)
880	}	1279	}
		1280
		1281	=head2 COMMAND CALLBACKS
		1282
		1283	=over 4
		1284
		1285	=cut
881		1286
882	#############################################################################	1287	#############################################################################
883	# command handling &c	1288	# command handling &c
884		1289
885	=item cf::register_command $name => \&callback($ob,$args);	1290	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1303	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1304	}
900		1305
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1306	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1307
903	Register a callbackf ro execution when the client sends an extcmd packet.	1308	Register a callback for execution when the client sends an (synchronous)
		1309	extcmd packet. Ext commands will be processed in the order they are
		1310	received by the server, like other user commands. The first argument is
		1311	the logged-in player. Ext commands can only be processed after a player
		1312	has logged in successfully.
904		1313
905	If the callback returns something, it is sent back as if reply was being	1314	If the callback returns something, it is sent back as if reply was being
906	called.	1315	called.
907		1316
		1317	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1318
		1319	Register a callback for execution when the client sends an (asynchronous)
		1320	exticmd packet. Exti commands are processed by the server as soon as they
		1321	are received, i.e. out of order w.r.t. other commands. The first argument
		1322	is a client socket. Exti commands can be received anytime, even before
		1323	log-in.
		1324
		1325	If the callback returns something, it is sent back as if reply was being
		1326	called.
		1327
908	=cut	1328	=cut
909		1329
910	sub register_extcmd {	1330	sub register_extcmd {
911	my ($name, $cb) = @_;	1331	my ($name, $cb) = @_;
912		1332
913	my $caller = caller;
914	#warn "registering extcmd '$name' to '$caller'";
915
916	$EXTCMD{$name} = [$cb, $caller];	1333	$EXTCMD{$name} = $cb;
917	}	1334	}
		1335
		1336	sub register_exticmd {
		1337	my ($name, $cb) = @_;
		1338
		1339	$EXTICMD{$name} = $cb;
		1340	}
		1341
		1342	use File::Glob ();
918		1343
919	cf::player->attach (	1344	cf::player->attach (
920	on_command => sub {	1345	on_unknown_command => sub {
921	my ($pl, $name, $params) = @_;	1346	my ($pl, $name, $params) = @_;
922		1347
923	my $cb = $COMMAND{$name}	1348	my $cb = $COMMAND{$name}
924	or return;	1349	or return;
925		1350
…		…
930	cf::override;	1355	cf::override;
931	},	1356	},
932	on_extcmd => sub {	1357	on_extcmd => sub {
933	my ($pl, $buf) = @_;	1358	my ($pl, $buf) = @_;
934		1359
935	my $msg = eval { from_json $buf };	1360	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
936		1361
937	if (ref $msg) {	1362	if (ref $msg) {
		1363	my ($type, $reply, @payload) =
		1364	"ARRAY" eq ref $msg
		1365	? @$msg
		1366	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1367
		1368	my @reply;
		1369
938	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1370	if (my $cb = $EXTCMD{$type}) {
939	if (my %reply = $cb->[0]->($pl, $msg)) {	1371	@reply = $cb->($pl, @payload);
940	$pl->ext_reply ($msg->{msgid}, %reply);
941	}
942	}	1372	}
		1373
		1374	$pl->ext_reply ($reply, @reply)
		1375	if $reply;
		1376
943	} else {	1377	} else {
944	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1378	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
945	}	1379	}
946		1380
947	cf::override;	1381	cf::override;
948	},	1382	},
949	);	1383	);
950		1384
951	sub register {	1385	# "readahead" all extensions
952	my ($base, $pkg) = @_;
953
954	#TODO
955	}
956
957	sub load_extension {	1386	sub cache_extensions {
958	my ($path) = @_;	1387	my $grp = IO::AIO::aio_group;
959		1388
960	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1389	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
961	my $base = $1;	1390	for (grep /\.ext$/, @{$_[0]}) {
962	my $pkg = $1;	1391	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
963	$pkg =~ s/[^[:word:]]/_/g;
964	$pkg = "ext::$pkg";
965
966	warn "loading '$path' into '$pkg'\n";
967
968	open my $fh, "<:utf8", $path
969	or die "$path: $!";
970
971	my $source =
972	"package $pkg; use strict; use utf8;\n"
973	. "#line 1 \"$path\"\n{\n"
974	. (do { local $/; <$fh> })
975	. "\n};\n1";
976
977	eval $source
978	or die $@ ? "$path: $@\n"
979	: "extension disabled.\n";
980
981	push @exts, $pkg;
982	$ext_pkg{$base} = $pkg;
983
984	# no strict 'refs';
985	# @{"$pkg\::ISA"} = ext::;
986
987	register $base, $pkg;
988	}
989
990	sub unload_extension {
991	my ($pkg) = @_;
992
993	warn "removing extension $pkg\n";
994
995	# remove hooks
996	#TODO
997	# for my $idx (0 .. $#PLUGIN_EVENT) {
998	# delete $hook[$idx]{$pkg};
999	# }
1000
1001	# remove commands
1002	for my $name (keys %COMMAND) {
1003	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1004
1005	if (@cb) {
1006	$COMMAND{$name} = \@cb;
1007	} else {
1008	delete $COMMAND{$name};
1009	}	1392	}
1010	}	1393	};
1011		1394
1012	# remove extcmds	1395	$grp
1013	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1014	delete $EXTCMD{$name};
1015	}
1016
1017	if (my $cb = $pkg->can ("unload")) {
1018	eval {
1019	$cb->($pkg);
1020	1
1021	} or warn "$pkg unloaded, but with errors: $@";
1022	}
1023
1024	Symbol::delete_package $pkg;
1025	}	1396	}
1026		1397
1027	sub load_extensions {	1398	sub load_extensions {
		1399	info "loading extensions...";
		1400
		1401	cf::sync_job {
		1402	my %todo;
		1403
1028	for my $ext (<$LIBDIR/*.ext>) {	1404	for my $path (<$LIBDIR/*.ext>) {
1029	next unless -r $ext;	1405	next unless -r $path;
1030	eval {	1406
1031	load_extension $ext;	1407	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1408	my $base = $1;
		1409	my $pkg = $1;
		1410	$pkg =~ s/[^[:word:]]/_/g;
		1411	$pkg = "ext::$pkg";
		1412
		1413	open my $fh, "<:utf8", $path
		1414	or die "$path: $!";
		1415
		1416	my $source = do { local $/; <$fh> };
		1417
		1418	my %ext = (
		1419	path => $path,
		1420	base => $base,
		1421	pkg => $pkg,
		1422	);
		1423
		1424	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1425	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1426
		1427	$ext{source} =
		1428	"package $pkg; use common::sense;\n"
		1429	. "#line 1 \"$path\"\n{\n"
		1430	. $source
		1431	. "\n};\n1";
		1432
		1433	$todo{$base} = \%ext;
		1434	}
		1435
		1436	my $pass = 0;
		1437	my %done;
		1438	while (%todo) {
		1439	my $progress;
		1440
		1441	++$pass;
		1442
		1443	ext:
		1444	while (my ($k, $v) = each %todo) {
		1445	for (split /,\s*/, $v->{meta}{depends}) {
		1446	next ext
		1447	unless exists $done{$_};
		1448	}
		1449
		1450	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1451
		1452	my $active = eval $v->{source};
		1453
		1454	if (length $@) {
		1455	error "$v->{path}: $@\n";
		1456
		1457	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1458	if exists $v->{meta}{mandatory};
		1459
		1460	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1461	delete $todo{$k};
		1462	} else {
		1463	$done{$k} = delete $todo{$k};
		1464	push @EXTS, $v->{pkg};
		1465	$progress = 1;
		1466
		1467	info "$v->{base}: extension inactive.\n"
		1468	unless $active;
		1469	}
1032	1	1470	}
1033	} or warn "$ext not loaded: $@";	1471
		1472	unless ($progress) {
		1473	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1474
		1475	while (my ($k, $v) = each %todo) {
		1476	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1477	if exists $v->{meta}{mandatory};
		1478	}
		1479	}
		1480	}
1034	}	1481	};
1035	}	1482	}
1036		1483
1037	#############################################################################	1484	#############################################################################
1038	# load/save/clean perl data associated with a map
1039		1485
1040	*cf::mapsupport::on_clean = sub {	1486	=back
		1487
		1488	=head2 CORE EXTENSIONS
		1489
		1490	Functions and methods that extend core deliantra objects.
		1491
		1492	=cut
		1493
		1494	package cf::player;
		1495
		1496	use Coro::AIO;
		1497
		1498	=head3 cf::player
		1499
		1500	=over 4
		1501
		1502	=item cf::player::num_playing
		1503
		1504	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1505
		1506	=cut
		1507
		1508	sub num_playing {
		1509	scalar grep
		1510	$_->ob->map
		1511	&& !$_->hidden
		1512	&& !$_->ob->flag (cf::FLAG_WIZ),
		1513	cf::player::list
		1514	}
		1515
		1516	=item cf::player::find $login
		1517
		1518	Returns the given player object, loading it if necessary (might block).
		1519
		1520	=cut
		1521
		1522	sub playerdir($) {
		1523	"$PLAYERDIR/"
		1524	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1525	}
		1526
		1527	sub path($) {
		1528	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1529
		1530	(playerdir $login) . "/playerdata"
		1531	}
		1532
		1533	sub find_active($) {
		1534	$cf::PLAYER{$_[0]}
		1535	and $cf::PLAYER{$_[0]}->active
		1536	and $cf::PLAYER{$_[0]}
		1537	}
		1538
		1539	sub exists($) {
1041	my ($map) = @_;	1540	my ($login) = @_;
1042		1541
1043	my $path = $map->tmpname;	1542	$cf::PLAYER{$login}
1044	defined $path or return;	1543	or !aio_stat path $login
1045
1046	unlink "$path.pst";
1047	};
1048
1049	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1050
1051	#############################################################################
1052	# load/save perl data associated with player->ob objects
1053
1054	sub all_objects(@) {
1055	@_, map all_objects ($_->inv), @_
1056	}	1544	}
1057		1545
1058	# TODO: compatibility cruft, remove when no longer needed	1546	sub find($) {
		1547	return $cf::PLAYER{$_[0]} || do {
		1548	my $login = $_[0];
		1549
		1550	my $guard = cf::lock_acquire "user_find:$login";
		1551
		1552	$cf::PLAYER{$_[0]} || do {
		1553	# rename old playerfiles to new ones
		1554	#TODO: remove when no longer required
		1555	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1556	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1557	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1558	aio_unlink +(playerdir $login) . "/$login.pl";
		1559
		1560	my $f = new_from_file cf::object::thawer path $login
		1561	or return;
		1562
		1563	my $pl = cf::player::load_pl $f
		1564	or return;
		1565
		1566	local $cf::PLAYER_LOADING{$login} = $pl;
		1567	$f->resolve_delayed_derefs;
		1568	$cf::PLAYER{$login} = $pl
		1569	}
		1570	}
		1571	}
		1572
1059	cf::player->attach (	1573	cf::player->attach (
1060	on_load => sub {	1574	on_load => sub {
1061	my ($pl, $path) = @_;	1575	my ($pl, $path) = @_;
1062		1576
1063	for my $o (all_objects $pl->ob) {	1577	# restore slots saved in save, below
1064	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1578	my $slots = delete $pl->{_slots};
1065	$o->set_ob_key_value ("_perl_data");
1066		1579
1067	%$o = %{ Storable::thaw pack "H*", $value };	1580	$pl->ob->current_weapon ($slots->[0]);
1068	}	1581	$pl->combat_ob ($slots->[1]);
1069	}	1582	$pl->ranged_ob ($slots->[2]);
1070	},	1583	},
1071	);	1584	);
1072		1585
1073	#############################################################################	1586	sub save($) {
		1587	my ($pl) = @_;
1074		1588
1075	=head2 CORE EXTENSIONS	1589	return if $pl->{deny_save};
1076		1590
1077	Functions and methods that extend core crossfire objects.	1591	my $path = path $pl;
		1592	my $guard = cf::lock_acquire "user_save:$path";
1078		1593
1079	=head3 cf::player	1594	return if $pl->{deny_save};
		1595
		1596	aio_mkdir playerdir $pl, 0770;
		1597	$pl->{last_save} = $cf::RUNTIME;
		1598
		1599	cf::get_slot 0.01;
		1600
		1601	# save slots, to be restored later
		1602	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1603
		1604	$pl->save_pl ($path);
		1605	cf::cede_to_tick;
		1606	}
		1607
		1608	sub new($) {
		1609	my ($login) = @_;
		1610
		1611	my $self = create;
		1612
		1613	$self->ob->name ($login);
		1614	$self->{deny_save} = 1;
		1615
		1616	$cf::PLAYER{$login} = $self;
		1617
		1618	$self
		1619	}
		1620
		1621	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1622
		1623	=cut
		1624
		1625	sub send_msg {
		1626	my $ns = shift->ns
		1627	or return;
		1628	$ns->send_msg (@_);
		1629	}
		1630
		1631	=item $pl->quit_character
		1632
		1633	Nukes the player without looking back. If logged in, the connection will
		1634	be destroyed. May block for a long time.
		1635
		1636	=cut
		1637
		1638	sub quit_character {
		1639	my ($pl) = @_;
		1640
		1641	my $name = $pl->ob->name;
		1642
		1643	$pl->{deny_save} = 1;
		1644	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1645
		1646	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1647	$pl->deactivate;
		1648	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1649	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1650	$pl->ns->destroy if $pl->ns;
		1651
		1652	my $path = playerdir $pl;
		1653	my $temp = "$path~$cf::RUNTIME~deleting~";
		1654	aio_rename $path, $temp;
		1655	delete $cf::PLAYER{$pl->ob->name};
		1656	$pl->destroy;
		1657
		1658	my $prefix = qr<^~\Q$name\E/>;
		1659
		1660	# nuke player maps
		1661	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1662
		1663	IO::AIO::aio_rmtree $temp;
		1664	}
		1665
		1666	=item $pl->kick
		1667
		1668	Kicks a player out of the game. This destroys the connection.
		1669
		1670	=cut
		1671
		1672	sub kick {
		1673	my ($pl, $kicker) = @_;
		1674
		1675	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1676	$pl->killer ("kicked");
		1677	$pl->ns->destroy;
		1678	}
		1679
		1680	=item cf::player::list_logins
		1681
		1682	Returns am arrayref of all valid playernames in the system, can take a
		1683	while and may block, so not sync_job-capable, ever.
		1684
		1685	=cut
		1686
		1687	sub list_logins {
		1688	my $dirs = aio_readdir $PLAYERDIR
		1689	or return [];
		1690
		1691	my @logins;
		1692
		1693	for my $login (@$dirs) {
		1694	my $path = path $login;
		1695
		1696	# a .pst is a dead give-away for a valid player
		1697	# if no pst file found, open and chekc for blocked users
		1698	if (aio_stat "$path.pst") {
		1699	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1700	aio_read $fh, 0, 512, my $buf, 0 or next;
		1701	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1702	}
		1703
		1704	utf8::decode $login;
		1705	push @logins, $login;
		1706	}
		1707
		1708	\@logins
		1709	}
		1710
		1711	=item $player->maps
		1712
		1713	=item cf::player::maps $login
		1714
		1715	Returns an arrayref of map paths that are private for this
		1716	player. May block.
		1717
		1718	=cut
		1719
		1720	sub maps($) {
		1721	my ($pl) = @_;
		1722
		1723	$pl = ref $pl ? $pl->ob->name : $pl;
		1724
		1725	my $files = aio_readdir playerdir $pl
		1726	or return;
		1727
		1728	my @paths;
		1729
		1730	for (@$files) {
		1731	utf8::decode $_;
		1732	next if /\.(?:pl|pst)$/;
		1733	next unless /^$PATH_SEP/o;
		1734
		1735	push @paths, cf::map::normalise "~$pl/$_";
		1736	}
		1737
		1738	\@paths
		1739	}
		1740
		1741	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1742
		1743	Expand deliantra pod fragments into protocol xml.
		1744
		1745	=item $player->ext_reply ($msgid, @msg)
		1746
		1747	Sends an ext reply to the player.
		1748
		1749	=cut
		1750
		1751	sub ext_reply($$@) {
		1752	my ($self, $id, @msg) = @_;
		1753
		1754	$self->ns->ext_reply ($id, @msg)
		1755	}
		1756
		1757	=item $player->ext_msg ($type, @msg)
		1758
		1759	Sends an ext event to the client.
		1760
		1761	=cut
		1762
		1763	sub ext_msg($$@) {
		1764	my ($self, $type, @msg) = @_;
		1765
		1766	$self->ns->ext_msg ($type, @msg);
		1767	}
		1768
		1769	=head3 cf::region
1080		1770
1081	=over 4	1771	=over 4
1082		1772
1083	=item cf::player::exists $login
1084
1085	Returns true when the given account exists.
1086
1087	=cut	1773	=cut
1088		1774
1089	sub cf::player::exists($) {	1775	package cf::region;
1090	cf::player::find $_[0]
1091	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1092	}
1093		1776
1094	=item $player->ext_reply ($msgid, $msgtype, %msg)	1777	=item cf::region::find_by_path $path
1095		1778
1096	Sends an ext reply to the player.	1779	Tries to decuce the likely region for a map knowing only its path.
1097		1780
1098	=cut	1781	=cut
1099		1782
1100	sub cf::player::ext_reply($$$%) {	1783	sub find_by_path($) {
1101	my ($self, $id, %msg) = @_;	1784	my ($path) = @_;
1102		1785
1103	$msg{msgid} = $id;	1786	$path =~ s/^~[^\/]*//; # skip ~login
1104		1787
1105	$self->send ("ext " . to_json \%msg);	1788	my ($match, $specificity);
		1789
		1790	for my $region (list) {
		1791	if ($region->{match} && $path =~ $region->{match}) {
		1792	($match, $specificity) = ($region, $region->specificity)
		1793	if $region->specificity > $specificity;
		1794	}
		1795	}
		1796
		1797	$match
1106	}	1798	}
1107		1799
1108	=back	1800	=back
1109
1110		1801
1111	=head3 cf::map	1802	=head3 cf::map
1112		1803
1113	=over 4	1804	=over 4
1114		1805
…		…
1117	package cf::map;	1808	package cf::map;
1118		1809
1119	use Fcntl;	1810	use Fcntl;
1120	use Coro::AIO;	1811	use Coro::AIO;
1121		1812
		1813	use overload
		1814	'""' => \&as_string,
		1815	fallback => 1;
		1816
1122	our $MAX_RESET = 3600;	1817	our $MAX_RESET = 3600;
1123	our $DEFAULT_RESET = 3000;	1818	our $DEFAULT_RESET = 3000;
1124		1819
1125	sub generate_random_map {	1820	sub generate_random_map {
1126	my ($path, $rmp) = @_;	1821	my ($self, $rmp) = @_;
		1822
		1823	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1127		1824
1128	# mit "rum" bekleckern, nicht	1825	# mit "rum" bekleckern, nicht
1129	cf::map::_create_random_map	1826	$self->_create_random_map (
1130	$path,
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1827	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1828	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1829	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},	1830	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},	1831	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1832	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1833	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1834	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1835	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1836	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1141	(cf::region::find $rmp->{region})	1837	(cf::region::find $rmp->{region}), $rmp->{custom}
		1838	)
1142	}	1839	}
1143		1840
1144	# and all this just because we cannot iterate over	1841	=item cf::map->register ($regex, $prio)
1145	# all maps in C++...
1146	sub change_all_map_light {
1147	my ($change) = @_;
1148		1842
1149	$_->change_map_light ($change)	1843	Register a handler for the map path matching the given regex at the
1150	for grep $_->outdoor, values %cf::MAP;	1844	givne priority (higher is better, built-in handlers have priority 0, the
1151	}	1845	default).
1152		1846
1153	sub try_load_header($) {	1847	=cut
		1848
		1849	sub register {
		1850	my (undef, $regex, $prio) = @_;
		1851	my $pkg = caller;
		1852
		1853	push @{"$pkg\::ISA"}, __PACKAGE__;
		1854
		1855	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1856	}
		1857
		1858	# also paths starting with '/'
		1859	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1860
		1861	sub thawer_merge {
		1862	my ($self, $merge) = @_;
		1863
		1864	# we have to keep some variables in memory intact
		1865	local $self->{path};
		1866	local $self->{load_path};
		1867
		1868	$self->SUPER::thawer_merge ($merge);
		1869	}
		1870
		1871	sub normalise {
1154	my ($path) = @_;	1872	my ($path, $base) = @_;
		1873
		1874	$path = "$path"; # make sure its a string
		1875
		1876	$path =~ s/\.map$//;
		1877
		1878	# map plan:
		1879	#
		1880	# /! non-realised random map exit (special hack!)
		1881	# {... are special paths that are not being touched
		1882	# ?xxx/... are special absolute paths
		1883	# ?random/... random maps
		1884	# /... normal maps
		1885	# ~user/... per-player map of a specific user
		1886
		1887	$path =~ s/$PATH_SEP/\//go;
		1888
		1889	# treat it as relative path if it starts with
		1890	# something that looks reasonable
		1891	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1892	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1893
		1894	$base =~ s{[^/]+/?$}{};
		1895	$path = "$base/$path";
		1896	}
		1897
		1898	for ($path) {
		1899	redo if s{//}{/};
		1900	redo if s{/\.?/}{/};
		1901	redo if s{/[^/]+/\.\./}{/};
		1902	}
		1903
		1904	$path
		1905	}
		1906
		1907	sub new_from_path {
		1908	my (undef, $path, $base) = @_;
		1909
		1910	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1911
		1912	$path = normalise $path, $base;
		1913
		1914	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1915	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1916	my $self = bless cf::map::new, $pkg;
		1917	$self->{path} = $path; $self->path ($path);
		1918	$self->init; # pass $1 etc.
		1919	return $self;
		1920	}
		1921	}
		1922
		1923	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1924	()
		1925	}
		1926
		1927	sub init {
		1928	my ($self) = @_;
		1929
		1930	$self
		1931	}
		1932
		1933	sub as_string {
		1934	my ($self) = @_;
		1935
		1936	"$self->{path}"
		1937	}
		1938
		1939	# the displayed name, this is a one way mapping
		1940	sub visible_name {
		1941	&as_string
		1942	}
		1943
		1944	# the original (read-only) location
		1945	sub load_path {
		1946	my ($self) = @_;
		1947
		1948	"$MAPDIR/$self->{path}.map"
		1949	}
		1950
		1951	# the temporary/swap location
		1952	sub save_path {
		1953	my ($self) = @_;
		1954
		1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1956	"$TMPDIR/$path.map"
		1957	}
		1958
		1959	# the unique path, undef == no special unique path
		1960	sub uniq_path {
		1961	my ($self) = @_;
		1962
		1963	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1964	"$UNIQUEDIR/$path"
		1965	}
		1966
		1967	sub decay_objects {
		1968	my ($self) = @_;
		1969
		1970	return if $self->{deny_reset};
		1971
		1972	$self->do_decay_objects;
		1973	}
		1974
		1975	sub unlink_save {
		1976	my ($self) = @_;
		1977
		1978	utf8::encode (my $save = $self->save_path);
		1979	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1980	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1981	}
		1982
		1983	sub load_header_from($) {
		1984	my ($self, $path) = @_;
1155		1985
1156	utf8::encode $path;	1986	utf8::encode $path;
1157	aio_open $path, O_RDONLY, 0	1987	my $f = new_from_file cf::object::thawer $path
1158	or return;	1988	or return;
1159		1989
1160	my $map = cf::map::new	1990	$self->_load_header ($f)
1161	or return;	1991	or return;
1162		1992
1163	# for better error messages only, will be overwritten	1993	local $MAP_LOADING{$self->{path}} = $self;
1164	$map->path ($path);	1994	$f->resolve_delayed_derefs;
1165		1995
1166	$map->load_header ($path)	1996	$self->{load_path} = $path;
		1997
		1998	1
		1999	}
		2000
		2001	sub load_header_orig {
		2002	my ($self) = @_;
		2003
		2004	$self->load_header_from ($self->load_path)
		2005	}
		2006
		2007	sub load_header_temp {
		2008	my ($self) = @_;
		2009
		2010	$self->load_header_from ($self->save_path)
		2011	}
		2012
		2013	sub prepare_temp {
		2014	my ($self) = @_;
		2015
		2016	$self->last_access ((delete $self->{last_access})
		2017	|| $cf::RUNTIME); #d#
		2018	# safety
		2019	$self->{instantiate_time} = $cf::RUNTIME
		2020	if $self->{instantiate_time} > $cf::RUNTIME;
		2021	}
		2022
		2023	sub prepare_orig {
		2024	my ($self) = @_;
		2025
		2026	$self->{load_original} = 1;
		2027	$self->{instantiate_time} = $cf::RUNTIME;
		2028	$self->last_access ($cf::RUNTIME);
		2029	$self->instantiate;
		2030	}
		2031
		2032	sub load_header {
		2033	my ($self) = @_;
		2034
		2035	if ($self->load_header_temp) {
		2036	$self->prepare_temp;
		2037	} else {
		2038	$self->load_header_orig
1167	or return;	2039	or return;
		2040	$self->prepare_orig;
		2041	}
1168		2042
1169	$map->{load_path} = $path;	2043	$self->{deny_reset} = 1
		2044	if $self->no_reset;
1170		2045
1171	$map	2046	$self->default_region (cf::region::find_by_path $self->{path})
		2047	unless $self->default_region;
		2048
		2049	1
1172	}	2050	}
1173		2051
1174	sub find;	2052	sub find;
1175	sub find {	2053	sub find {
1176	my ($path, $origin) = @_;	2054	my ($path, $origin) = @_;
1177		2055
1178	#warn "find<$path,$origin>\n";#d#
1179
1180	$path = new cf::path $path, $origin && $origin->path;	2056	$path = normalise $path, $origin && $origin->path;
1181	my $key = $path->as_string;
1182		2057
1183	cf::lock_wait "map_find:$key";	2058	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1184
1185	$cf::MAP{$key} || do {
1186	my $guard = cf::lock_acquire "map_find:$key";	2059	my $guard2 = cf::lock_acquire "map_find:$path";
1187		2060
1188	# do it the slow way	2061	$cf::MAP{$path} || do {
1189	my $map = try_load_header $path->save_path;	2062	my $map = new_from_path cf::map $path
1190
1191	Coro::cede;
1192
1193	if ($map) {
1194	$map->last_access ((delete $map->{last_access})
1195	|| $cf::RUNTIME); #d#
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	2063	or return;
1207		2064
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->last_access ($cf::RUNTIME);
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	2065	$map->{last_save} = $cf::RUNTIME;
1220		2066
1221	Coro::cede;	2067	$map->load_header
		2068	or return;
1222		2069
1223	if ($map->should_reset) {	2070	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2071	# doing this can freeze the server in a sync job, obviously
		2072	#$cf::WAIT_FOR_TICK->wait;
		2073	undef $guard2;
		2074	undef $guard1;
1224	$map->reset;	2075	$map->reset;
1225	undef $guard;
1226	$map = find $path	2076	return find $path;
1227	or return;
1228	}	2077	}
1229		2078
1230	$cf::MAP{$key} = $map	2079	$cf::MAP{$path} = $map
1231	}	2080	}
1232	}	2081	}
		2082
		2083	sub pre_load { }
		2084	#sub post_load { } # XS
1233		2085
1234	sub load {	2086	sub load {
1235	my ($self) = @_;	2087	my ($self) = @_;
1236		2088
		2089	local $self->{deny_reset} = 1; # loading can take a long time
		2090
1237	my $path = $self->{path};	2091	my $path = $self->{path};
		2092
		2093	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2094	my $guard = cf::lock_acquire "map_data:$path";
1239		2095
		2096	return unless $self->valid;
1240	return if $self->in_memory != cf::MAP_SWAPPED;	2097	return unless $self->in_memory == cf::MAP_SWAPPED;
1241		2098
1242	$self->in_memory (cf::MAP_LOADING);	2099	$self->in_memory (cf::MAP_LOADING);
1243		2100
1244	$self->alloc;	2101	$self->alloc;
1245	$self->load_objects ($self->{load_path}, 1)	2102
		2103	$self->pre_load;
		2104	cf::cede_to_tick;
		2105
		2106	my $f = new_from_file cf::object::thawer $self->{load_path};
		2107	$f->skip_block;
		2108	$self->_load_objects ($f)
1246	or return;	2109	or return;
1247		2110
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2111	$self->post_load_original
1249	if delete $self->{load_original};	2112	if delete $self->{load_original};
1250		2113
1251	if (my $uniq = $path->uniq_path) {	2114	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	2115	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	2116	unless (aio_stat $uniq) {
		2117	if (my $f = new_from_file cf::object::thawer $uniq) {
1254	$self->clear_unique_items;	2118	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	2119	$self->_load_objects ($f);
		2120	$f->resolve_delayed_derefs;
		2121	}
1256	}	2122	}
1257	}	2123	}
1258		2124
1259	Coro::cede;	2125	$f->resolve_delayed_derefs;
1260		2126
		2127	cf::cede_to_tick;
1261	# now do the right thing for maps	2128	# now do the right thing for maps
1262	$self->link_multipart_objects;	2129	$self->link_multipart_objects;
1263
1264	if ($self->{path}->is_style_map) {
1265	$self->{deny_save} = 1;
1266	$self->{deny_reset} = 1;
1267	} else {
1268	$self->fix_auto_apply;
1269	$self->decay_objects;
1270	$self->update_buttons;
1271	$self->set_darkness_map;
1272	$self->difficulty ($self->estimate_difficulty)	2130	$self->difficulty ($self->estimate_difficulty)
1273	unless $self->difficulty;	2131	unless $self->difficulty;
		2132	cf::cede_to_tick;
		2133
		2134	unless ($self->{deny_activate}) {
		2135	$self->decay_objects;
		2136	$self->fix_auto_apply;
		2137	$self->update_buttons;
		2138	cf::cede_to_tick;
1274	$self->activate;	2139	$self->activate;
1275	}	2140	}
1276		2141
1277	Coro::cede;	2142	$self->{last_save} = $cf::RUNTIME;
		2143	$self->last_access ($cf::RUNTIME);
1278		2144
1279	$self->in_memory (cf::MAP_IN_MEMORY);	2145	$self->in_memory (cf::MAP_ACTIVE);
		2146	}
		2147
		2148	$self->post_load;
		2149	}
		2150
		2151	# customize the map for a given player, i.e.
		2152	# return the _real_ map. used by e.g. per-player
		2153	# maps to change the path to ~playername/mappath
		2154	sub customise_for {
		2155	my ($self, $ob) = @_;
		2156
		2157	return find "~" . $ob->name . "/" . $self->{path}
		2158	if $self->per_player;
		2159
		2160	# return find "?party/" . $ob->name . "/" . $self->{path}
		2161	# if $self->per_party;
		2162
		2163	$self
		2164	}
		2165
		2166	# find and load all maps in the 3x3 area around a map
		2167	sub load_neighbours {
		2168	my ($map) = @_;
		2169
		2170	my @neigh; # diagonal neighbours
		2171
		2172	for (0 .. 3) {
		2173	my $neigh = $map->tile_path ($_)
		2174	or next;
		2175	$neigh = find $neigh, $map
		2176	or next;
		2177	$neigh->load;
		2178
		2179	# now find the diagonal neighbours
		2180	push @neigh,
		2181	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2182	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2183	}
		2184
		2185	for (grep defined $_->[0], @neigh) {
		2186	my ($path, $origin) = @$_;
		2187	my $neigh = find $path, $origin
		2188	or next;
		2189	$neigh->load;
		2190	}
1280	}	2191	}
1281		2192
1282	sub find_sync {	2193	sub find_sync {
1283	my ($path, $origin) = @_;	2194	my ($path, $origin) = @_;
1284		2195
1285	cf::sync_job { cf::map::find $path, $origin }	2196	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2197	if $Coro::current == $Coro::main;
		2198
		2199	find $path, $origin
1286	}	2200	}
1287		2201
1288	sub do_load_sync {	2202	sub do_load_sync {
1289	my ($map) = @_;	2203	my ($map) = @_;
1290		2204
1291	cf::sync_job { $map->load };	2205	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2206	if $Coro::current == $Coro::main;
		2207
		2208	$map->load;
		2209	}
		2210
		2211	our %MAP_PREFETCH;
		2212	our $MAP_PREFETCHER = undef;
		2213
		2214	sub find_async {
		2215	my ($path, $origin, $load) = @_;
		2216
		2217	$path = normalise $path, $origin && $origin->{path};
		2218
		2219	if (my $map = $cf::MAP{$path}) {
		2220	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2221	}
		2222
		2223	$MAP_PREFETCH{$path} |= $load;
		2224
		2225	$MAP_PREFETCHER ||= cf::async {
		2226	$Coro::current->{desc} = "map prefetcher";
		2227
		2228	while (%MAP_PREFETCH) {
		2229	while (my ($k, $v) = each %MAP_PREFETCH) {
		2230	if (my $map = find $k) {
		2231	$map->load if $v;
		2232	}
		2233
		2234	delete $MAP_PREFETCH{$k};
		2235	}
		2236	}
		2237	undef $MAP_PREFETCHER;
		2238	};
		2239	$MAP_PREFETCHER->prio (6);
		2240
		2241	()
		2242	}
		2243
		2244	# common code, used by both ->save and ->swapout
		2245	sub _save {
		2246	my ($self) = @_;
		2247
		2248	$self->{last_save} = $cf::RUNTIME;
		2249
		2250	return unless $self->dirty;
		2251
		2252	my $save = $self->save_path; utf8::encode $save;
		2253	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2254
		2255	$self->{load_path} = $save;
		2256
		2257	return if $self->{deny_save};
		2258
		2259	local $self->{last_access} = $self->last_access;#d#
		2260
		2261	cf::async {
		2262	$Coro::current->{desc} = "map player save";
		2263	$_->contr->save for $self->players;
		2264	};
		2265
		2266	cf::get_slot 0.02;
		2267
		2268	if ($uniq) {
		2269	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2270	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2271	} else {
		2272	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2273	}
1292	}	2274	}
1293		2275
1294	sub save {	2276	sub save {
1295	my ($self) = @_;	2277	my ($self) = @_;
1296		2278
1297	my $lock = cf::lock_acquire "map_data:" . $self->path;	2279	my $lock = cf::lock_acquire "map_data:$self->{path}";
1298		2280
1299	$self->{last_save} = $cf::RUNTIME;	2281	$self->_save;
1300
1301	return unless $self->dirty;
1302
1303	my $save = $self->{path}->save_path; utf8::encode $save;
1304	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1305
1306	$self->{load_path} = $save;
1307
1308	return if $self->{deny_save};
1309
1310	local $self->{last_access} = $self->last_access;#d#
1311
1312	if ($uniq) {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1314	$self->save_objects ($uniq, cf::IO_UNIQUES);
1315	} else {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1317	}
1318	}	2282	}
1319		2283
1320	sub swap_out {	2284	sub swap_out {
1321	my ($self) = @_;	2285	my ($self) = @_;
1322		2286
1323	# save first because save cedes
1324	$self->save;
1325
1326	my $lock = cf::lock_acquire "map_data:" . $self->path;	2287	my $lock = cf::lock_acquire "map_data:$self->{path}";
1327		2288
		2289	return if $self->in_memory != cf::MAP_ACTIVE;
		2290	return if $self->{deny_save};
1328	return if $self->players;	2291	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;
1330	return if $self->{deny_save};
1331		2292
		2293	# first deactivate the map and "unlink" it from the core
		2294	$self->deactivate;
		2295	$_->clear_links_to ($self) for values %cf::MAP;
		2296	$self->in_memory (cf::MAP_SWAPPED);
		2297
		2298	# then atomically save
		2299	$self->_save;
		2300
		2301	# then free the map
1332	$self->clear;	2302	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);
1334	}	2303	}
1335		2304
1336	sub reset_at {	2305	sub reset_at {
1337	my ($self) = @_;	2306	my ($self) = @_;
1338		2307
1339	# TODO: safety, remove and allow resettable per-player maps	2308	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	2309	return 1e99 if $self->{deny_reset};
1342		2310
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2311	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2312	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		2313
…		…
1350	my ($self) = @_;	2318	my ($self) = @_;
1351		2319
1352	$self->reset_at <= $cf::RUNTIME	2320	$self->reset_at <= $cf::RUNTIME
1353	}	2321	}
1354		2322
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	2323	sub reset {
1377	my ($self) = @_;	2324	my ($self) = @_;
1378		2325
1379	my $lock = cf::lock_acquire "map_data:" . $self->path;	2326	my $lock = cf::lock_acquire "map_data:$self->{path}";
1380		2327
1381	return if $self->players;	2328	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		2329
1384	warn "resetting map ", $self->path;#d#	2330	cf::trace "resetting map ", $self->path, "\n";
		2331
		2332	$self->in_memory (cf::MAP_SWAPPED);
		2333
		2334	# need to save uniques path
		2335	unless ($self->{deny_save}) {
		2336	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2337
		2338	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2339	if $uniq;
		2340	}
1385		2341
1386	delete $cf::MAP{$self->path};	2342	delete $cf::MAP{$self->path};
1387		2343
		2344	$self->deactivate;
1388	$_->clear_links_to ($self) for values %cf::MAP;	2345	$_->clear_links_to ($self) for values %cf::MAP;
		2346	$self->clear;
1389		2347
1390	$self->unlink_save;	2348	$self->unlink_save;
1391	$self->destroy;	2349	$self->destroy;
1392	}	2350	}
1393		2351
1394	my $nuke_counter = "aaaa";	2352	my $nuke_counter = "aaaa";
1395		2353
1396	sub nuke {	2354	sub nuke {
1397	my ($self) = @_;	2355	my ($self) = @_;
1398		2356
		2357	{
		2358	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2359
		2360	delete $cf::MAP{$self->path};
		2361
		2362	$self->unlink_save;
		2363
		2364	bless $self, "cf::map::wrap";
		2365	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	2366	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2367	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2368	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2369
		2370	$cf::MAP{$self->path} = $self;
		2371	}
		2372
1402	$self->reset; # polite request, might not happen	2373	$self->reset; # polite request, might not happen
1403	}	2374	}
1404		2375
1405	sub customise_for {	2376	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2377
1408	if ($map->per_player) {	2378	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2379	maps. May block.
		2380
		2381	=cut
		2382
		2383	sub tmp_maps() {
1410	}	2384	[
1411		2385	map {
1412	$map	2386	utf8::decode $_;
		2387	/\.map$/
		2388	? normalise $_
		2389	: ()
		2390	} @{ aio_readdir $TMPDIR or [] }
		2391	]
1413	}	2392	}
1414		2393
1415	sub emergency_save {	2394	=item $maps = cf::map::random_maps
1416	my $freeze_guard = cf::freeze_mainloop;
1417		2395
1418	warn "enter emergency map save\n";	2396	Returns an arrayref with all map paths of currently instantiated and saved
		2397	random maps. May block.
1419		2398
1420	cf::sync_job {	2399	=cut
1421	warn "begin emergency map save\n";	2400
1422	$_->save for values %cf::MAP;	2401	sub random_maps() {
		2402	[
		2403	map {
		2404	utf8::decode $_;
		2405	/\.map$/
		2406	? normalise "?random/$_"
		2407	: ()
		2408	} @{ aio_readdir $RANDOMDIR or [] }
		2409	]
		2410	}
		2411
		2412	=item cf::map::unique_maps
		2413
		2414	Returns an arrayref of paths of all shared maps that have
		2415	instantiated unique items. May block.
		2416
		2417	=cut
		2418
		2419	sub unique_maps() {
		2420	[
		2421	map {
		2422	utf8::decode $_;
		2423	s/\.map$//; # TODO future compatibility hack
		2424	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2425	? ()
		2426	: normalise $_
		2427	} @{ aio_readdir $UNIQUEDIR or [] }
		2428	]
		2429	}
		2430
		2431	=item cf::map::static_maps
		2432
		2433	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2434	file in the shared directory excluding F</styles> and F</editor>). May
		2435	block.
		2436
		2437	=cut
		2438
		2439	sub static_maps() {
		2440	my @dirs = "";
		2441	my @maps;
		2442
		2443	while (@dirs) {
		2444	my $dir = shift @dirs;
		2445
		2446	next if $dir eq "/styles" || $dir eq "/editor";
		2447
		2448	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2449	or return;
		2450
		2451	for (@$files) {
		2452	s/\.map$// or next;
		2453	utf8::decode $_;
		2454	push @maps, "$dir/$_";
		2455	}
		2456
		2457	push @dirs, map "$dir/$_", @$dirs;
1423	};	2458	}
1424		2459
1425	warn "end emergency map save\n";	2460	\@maps
		2461	}
		2462
		2463	=back
		2464
		2465	=head3 cf::object
		2466
		2467	=cut
		2468
		2469	package cf::object;
		2470
		2471	=over 4
		2472
		2473	=item $ob->inv_recursive
		2474
		2475	Returns the inventory of the object I<and> their inventories, recursively,
		2476	but I<not> the object itself.
		2477
		2478	=cut
		2479
		2480	sub inv_recursive_;
		2481	sub inv_recursive_ {
		2482	map { $_, inv_recursive_ $_->inv } @_
		2483	}
		2484
		2485	sub inv_recursive {
		2486	inv_recursive_ inv $_[0]
		2487	}
		2488
		2489	=item $ref = $ob->ref
		2490
		2491	Creates and returns a persistent reference to an object that can be stored as a string.
		2492
		2493	=item $ob = cf::object::deref ($refstring)
		2494
		2495	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2496	even if the object actually exists. May block.
		2497
		2498	=cut
		2499
		2500	sub deref {
		2501	my ($ref) = @_;
		2502
		2503	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2504	my ($uuid, $name) = ($1, $2);
		2505	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2506	or return;
		2507	$pl->ob->uuid eq $uuid
		2508	or return;
		2509
		2510	$pl->ob
		2511	} else {
		2512	warn "$ref: cannot resolve object reference\n";
		2513	undef
		2514	}
1426	}	2515	}
1427		2516
1428	package cf;	2517	package cf;
1429		2518
1430	=back	2519	=back
1431
1432		2520
1433	=head3 cf::object::player	2521	=head3 cf::object::player
1434		2522
1435	=over 4	2523	=over 4
1436		2524
…		…
1439	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2527	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1440	can be C<undef>. Does the right thing when the player is currently in a	2528	can be C<undef>. Does the right thing when the player is currently in a
1441	dialogue with the given NPC character.	2529	dialogue with the given NPC character.
1442		2530
1443	=cut	2531	=cut
		2532
		2533	our $SAY_CHANNEL = {
		2534	id => "say",
		2535	title => "Map",
		2536	reply => "say ",
		2537	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2538	};
		2539
		2540	our $CHAT_CHANNEL = {
		2541	id => "chat",
		2542	title => "Chat",
		2543	reply => "chat ",
		2544	tooltip => "Player chat and shouts, global to the server.",
		2545	};
1444		2546
1445	# rough implementation of a future "reply" method that works	2547	# rough implementation of a future "reply" method that works
1446	# with dialog boxes.	2548	# with dialog boxes.
1447	#TODO: the first argument must go, split into a $npc->reply_to ( method	2549	#TODO: the first argument must go, split into a $npc->reply_to ( method
1448	sub cf::object::player::reply($$$;$) {	2550	sub cf::object::player::reply($$$;$) {
…		…
1450		2552
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2553	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2554
1453	if ($self->{record_replies}) {	2555	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2556	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2557
1455	} else {	2558	} else {
		2559	my $pl = $self->contr;
		2560
		2561	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2562	my $dialog = $pl->{npc_dialog};
		2563	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2564
		2565	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2566	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2567	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2568	}
1458	}	2569	}
		2570	}
		2571
		2572	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2573
		2574	=cut
		2575
		2576	sub cf::object::send_msg {
		2577	my $pl = shift->contr
		2578	or return;
		2579	$pl->send_msg (@_);
1459	}	2580	}
1460		2581
1461	=item $player_object->may ("access")	2582	=item $player_object->may ("access")
1462		2583
1463	Returns wether the given player is authorized to access resource "access"	2584	Returns wether the given player is authorized to access resource "access"
…		…
1476		2597
1477	=item $player_object->enter_link	2598	=item $player_object->enter_link
1478		2599
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2600	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2601
1481	The player should be reaosnably safe there for short amounts of time. You	2602	The player should be reasonably safe there for short amounts of time (e.g.
1482	I<MUST> call C<leave_link> as soon as possible, though.	2603	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2604	though, as the player cannot control the character while it is on the link
		2605	map.
		2606
		2607	Will never block.
1483		2608
1484	=item $player_object->leave_link ($map, $x, $y)	2609	=item $player_object->leave_link ($map, $x, $y)
1485		2610
1486	Moves the player out of the specila link map onto the given map. If the	2611	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2612	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2613	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2614	fails, to the emergency map position.
1490		2615
1491	Might block.	2616	Might block.
1492		2617
1493	=cut	2618	=cut
		2619
		2620	sub link_map {
		2621	unless ($LINK_MAP) {
		2622	$LINK_MAP = cf::map::find "{link}"
		2623	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2624	$LINK_MAP->load;
		2625	}
		2626
		2627	$LINK_MAP
		2628	}
1494		2629
1495	sub cf::object::player::enter_link {	2630	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2631	my ($self) = @_;
1497		2632
1498	$self->deactivate_recursive;	2633	$self->deactivate_recursive;
1499		2634
1500	return if $self->map == $LINK_MAP;	2635	++$self->{_link_recursion};
		2636
		2637	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2638
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2639	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2640	if $self->map && $self->map->{path} ne "{link}";
1504		2641
1505	$self->enter_map ($LINK_MAP, 20, 20);	2642	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1506	}	2643	}
1507		2644
1508	sub cf::object::player::leave_link {	2645	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2646	my ($self, $map, $x, $y) = @_;
		2647
		2648	return unless $self->contr->active;
1510		2649
1511	my $link_pos = delete $self->{_link_pos};	2650	my $link_pos = delete $self->{_link_pos};
1512		2651
1513	unless ($map) {	2652	unless ($map) {
1514	# restore original map position	2653	# restore original map position
…		…
1525	($x, $y) = (-1, -1)	2664	($x, $y) = (-1, -1)
1526	unless (defined $x) && (defined $y);	2665	unless (defined $x) && (defined $y);
1527		2666
1528	# use -1 or undef as default coordinates, not 0, 0	2667	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2668	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2669	if $x <= 0 && $y <= 0;
1531		2670
1532	$map->load;	2671	$map->load;
		2672	$map->load_neighbours;
1533		2673
		2674	return unless $self->contr->active;
		2675
		2676	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2677	if ($self->enter_map ($map, $x, $y)) {
		2678	# entering was successful
		2679	delete $self->{_link_recursion};
		2680	# only activate afterwards, to support waiting in hooks
1534	$self->activate_recursive;	2681	$self->activate_recursive;
1535	$self->enter_map ($map, $x, $y);
1536	}
1537
1538	cf::player->attach (
1539	on_logout => sub {
1540	my ($pl) = @_;
1541
1542	# abort map switching before logout
1543	if ($pl->ob->{_link_pos}) {
1544	cf::sync_job {
1545	$pl->ob->leave_link
1546	};
1547	}
1548	},	2682	}
1549	on_login => sub {
1550	my ($pl) = @_;
1551		2683
1552	# try to abort aborted map switching on player login :)	2684	}
1553	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {
1555		2685
1556	$pl->ob->enter_link;	2686	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1557	(async {
1558	# we need this sleep as the login has a concurrent enter_exit running
1559	# and this sleep increases chances of the player not ending up in scorn
1560	$pl->ob->reply (undef,
1561	"There was an internal problem at your last logout, "
1562	. "the server will try to bring you to your intended destination in a second.",
1563	cf::NDI_RED);
1564	Coro::Timer::sleep 1;
1565	$pl->ob->leave_link;
1566	})->prio (2);
1567	}
1568	},
1569	);
1570		2687
1571	=item $player_object->goto ($path, $x, $y)	2688	Moves the player to the given map-path and coordinates by first freezing
		2689	her, loading and preparing them map, calling the provided $check callback
		2690	that has to return the map if sucecssful, and then unfreezes the player on
		2691	the new (success) or old (failed) map position. In either case, $done will
		2692	be called at the end of this process.
1572		2693
		2694	Note that $check will be called with a potentially non-loaded map, so if
		2695	it needs a loaded map it has to call C<< ->load >>.
		2696
1573	=cut	2697	=cut
		2698
		2699	our $GOTOGEN;
1574		2700
1575	sub cf::object::player::goto {	2701	sub cf::object::player::goto {
1576	my ($self, $path, $x, $y) = @_;	2702	my ($self, $path, $x, $y, $check, $done) = @_;
		2703
		2704	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2705	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2706	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2707	($path, $x, $y) = @$EMERGENCY_POSITION;
		2708	}
		2709
		2710	# do generation counting so two concurrent goto's will be executed in-order
		2711	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1577		2712
1578	$self->enter_link;	2713	$self->enter_link;
1579		2714
1580	(async {	2715	(async {
1581	$path = new cf::path $path;	2716	$Coro::current->{desc} = "player::goto $path $x $y";
1582		2717
1583	my $map = cf::map::find $path->as_string;	2718	# *tag paths override both path and x|y
		2719	if ($path =~ /^\*(.*)$/) {
		2720	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2721	my $ob = $obs[rand @obs];
		2722
		2723	# see if we actually can go there
		2724	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2725	$ob = $obs[rand @obs];
		2726	} else {
		2727	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2728	}
		2729	# else put us there anyways for now #d#
		2730
		2731	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2732	} else {
		2733	($path, $x, $y) = (undef, undef, undef);
		2734	}
		2735	}
		2736
		2737	my $map = eval {
		2738	my $map = defined $path ? cf::map::find $path : undef;
		2739
		2740	if ($map) {
1584	$map = $map->customise_for ($self) if $map;	2741	$map = $map->customise_for ($self);
1585		2742	$map = $check->($map, $x, $y, $self) if $check && $map;
1586	# warn "entering ", $map->path, " at ($x, $y)\n"	2743	} else {
1587	# if $map;
1588
1589	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2744	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2745	}
1590		2746
		2747	$map
		2748	};
		2749
		2750	if ($@) {
		2751	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2752	LOG llevError | logBacktrace, Carp::longmess $@;
		2753	}
		2754
		2755	if ($gen == $self->{_goto_generation}) {
		2756	delete $self->{_goto_generation};
1591	$self->leave_link ($map, $x, $y);	2757	$self->leave_link ($map, $x, $y);
		2758	}
		2759
		2760	$done->($self) if $done;
1592	})->prio (1);	2761	})->prio (1);
1593	}	2762	}
1594		2763
1595	=item $player_object->enter_exit ($exit_object)	2764	=item $player_object->enter_exit ($exit_object)
1596		2765
…		…
1598		2767
1599	sub parse_random_map_params {	2768	sub parse_random_map_params {
1600	my ($spec) = @_;	2769	my ($spec) = @_;
1601		2770
1602	my $rmp = { # defaults	2771	my $rmp = { # defaults
1603	xsize => 10,	2772	xsize => (cf::rndm 15, 40),
1604	ysize => 10,	2773	ysize => (cf::rndm 15, 40),
		2774	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2775	#layout => string,
1605	};	2776	};
1606		2777
1607	for (split /\n/, $spec) {	2778	for (split /\n/, $spec) {
1608	my ($k, $v) = split /\s+/, $_, 2;	2779	my ($k, $v) = split /\s+/, $_, 2;
1609		2780
…		…
1621	# that depends on the exit object	2792	# that depends on the exit object
1622		2793
1623	my $rmp = parse_random_map_params $exit->msg;	2794	my $rmp = parse_random_map_params $exit->msg;
1624		2795
1625	if ($exit->map) {	2796	if ($exit->map) {
1626	$rmp->{region} = $exit->map->region_name;	2797	$rmp->{region} = $exit->region->name;
1627	$rmp->{origin_map} = $exit->map->path;	2798	$rmp->{origin_map} = $exit->map->path;
1628	$rmp->{origin_x} = $exit->x;	2799	$rmp->{origin_x} = $exit->x;
1629	$rmp->{origin_y} = $exit->y;	2800	$rmp->{origin_y} = $exit->y;
		2801
		2802	$exit->map->touch;
1630	}	2803	}
1631		2804
1632	$rmp->{random_seed} ||= $exit->random_seed;	2805	$rmp->{random_seed} ||= $exit->random_seed;
1633		2806
1634	my $data = cf::to_json $rmp;	2807	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1635	my $md5 = Digest::MD5::md5_hex $data;	2808	my $md5 = Digest::MD5::md5_hex $data;
		2809	my $meta = "$RANDOMDIR/$md5.meta";
1636		2810
1637	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2811	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1638	aio_write $fh, 0, (length $data), $data, 0;	2812	aio_write $fh, 0, (length $data), $data, 0;
		2813	undef $fh;
		2814	aio_rename "$meta~", $meta;
1639		2815
		2816	my $slaying = "?random/$md5";
		2817
		2818	if ($exit->valid) {
1640	$exit->slaying ("?random/$md5");	2819	$exit->slaying ("?random/$md5");
1641	$exit->msg (undef);	2820	$exit->msg (undef);
		2821	}
1642	}	2822	}
1643	}	2823	}
1644		2824
1645	sub cf::object::player::enter_exit {	2825	sub cf::object::player::enter_exit {
1646	my ($self, $exit) = @_;	2826	my ($self, $exit) = @_;
…		…
1648	return unless $self->type == cf::PLAYER;	2828	return unless $self->type == cf::PLAYER;
1649		2829
1650	$self->enter_link;	2830	$self->enter_link;
1651		2831
1652	(async {	2832	(async {
1653	$self->deactivate_recursive; # just to be sure	2833	$Coro::current->{desc} = "enter_exit";
		2834
1654	unless (eval {	2835	unless (eval {
		2836	$self->deactivate_recursive; # just to be sure
		2837
		2838	# random map handling
		2839	{
		2840	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2841
1655	prepare_random_map $exit	2842	prepare_random_map $exit
1656	if $exit->slaying eq "/!";	2843	if $exit->slaying eq "/!";
		2844	}
1657		2845
1658	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2846	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1659	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2847	my $x = $exit->stats->hp;
		2848	my $y = $exit->stats->sp;
1660		2849
		2850	$self->goto ($map, $x, $y);
		2851
		2852	# if exit is damned, update players death & WoR home-position
		2853	$self->contr->savebed ($map, $x, $y)
		2854	if $exit->flag (cf::FLAG_DAMNED);
		2855
1661	1;	2856	1
1662	}) {	2857	}) {
1663	$self->message ("Something went wrong deep within the crossfire server. "	2858	$self->message ("Something went wrong deep within the deliantra server. "
1664	. "I'll try to bring you back to the map you were before. "	2859	. "I'll try to bring you back to the map you were before. "
1665	. "Please report this to the dungeon master",	2860	. "Please report this to the dungeon master!",
1666	cf::NDI_UNIQUE | cf::NDI_RED);	2861	cf::NDI_UNIQUE | cf::NDI_RED);
1667		2862
1668	warn "ERROR in enter_exit: $@";	2863	error "ERROR in enter_exit: $@";
1669	$self->leave_link;	2864	$self->leave_link;
1670	}	2865	}
1671	})->prio (1);	2866	})->prio (1);
1672	}	2867	}
1673		2868
…		…
1684		2879
1685	sub cf::client::send_drawinfo {	2880	sub cf::client::send_drawinfo {
1686	my ($self, $text, $flags) = @_;	2881	my ($self, $text, $flags) = @_;
1687		2882
1688	utf8::encode $text;	2883	utf8::encode $text;
1689	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2884	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1690	}	2885	}
1691		2886
		2887	=item $client->send_big_packet ($pkt)
		2888
		2889	Like C<send_packet>, but tries to compress large packets, and fragments
		2890	them as required.
		2891
		2892	=cut
		2893
		2894	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2895
		2896	sub cf::client::send_big_packet {
		2897	my ($self, $pkt) = @_;
		2898
		2899	# try lzf for large packets
		2900	$pkt = "lzf " . Compress::LZF::compress $pkt
		2901	if 1024 <= length $pkt and $self->{can_lzf};
		2902
		2903	# split very large packets
		2904	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2905	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2906	$pkt = "frag";
		2907	}
		2908
		2909	$self->send_packet ($pkt);
		2910	}
		2911
		2912	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2913
		2914	Send a drawinfo or msg packet to the client, formatting the msg for the
		2915	client if neccessary. C<$type> should be a string identifying the type of
		2916	the message, with C<log> being the default. If C<$color> is negative, suppress
		2917	the message unless the client supports the msg packet.
		2918
		2919	=cut
		2920
		2921	# non-persistent channels (usually the info channel)
		2922	our %CHANNEL = (
		2923	"c/motd" => {
		2924	id => "infobox",
		2925	title => "MOTD",
		2926	reply => undef,
		2927	tooltip => "The message of the day",
		2928	},
		2929	"c/identify" => {
		2930	id => "infobox",
		2931	title => "Identify",
		2932	reply => undef,
		2933	tooltip => "Items recently identified",
		2934	},
		2935	"c/examine" => {
		2936	id => "infobox",
		2937	title => "Examine",
		2938	reply => undef,
		2939	tooltip => "Signs and other items you examined",
		2940	},
		2941	"c/shopinfo" => {
		2942	id => "infobox",
		2943	title => "Shop Info",
		2944	reply => undef,
		2945	tooltip => "What your bargaining skill tells you about the shop",
		2946	},
		2947	"c/book" => {
		2948	id => "infobox",
		2949	title => "Book",
		2950	reply => undef,
		2951	tooltip => "The contents of a note or book",
		2952	},
		2953	"c/lookat" => {
		2954	id => "infobox",
		2955	title => "Look",
		2956	reply => undef,
		2957	tooltip => "What you saw there",
		2958	},
		2959	"c/who" => {
		2960	id => "infobox",
		2961	title => "Players",
		2962	reply => undef,
		2963	tooltip => "Shows players who are currently online",
		2964	},
		2965	"c/body" => {
		2966	id => "infobox",
		2967	title => "Body Parts",
		2968	reply => undef,
		2969	tooltip => "Shows which body parts you posess and are available",
		2970	},
		2971	"c/statistics" => {
		2972	id => "infobox",
		2973	title => "Statistics",
		2974	reply => undef,
		2975	tooltip => "Shows your primary statistics",
		2976	},
		2977	"c/skills" => {
		2978	id => "infobox",
		2979	title => "Skills",
		2980	reply => undef,
		2981	tooltip => "Shows your experience per skill and item power",
		2982	},
		2983	"c/shopitems" => {
		2984	id => "infobox",
		2985	title => "Shop Items",
		2986	reply => undef,
		2987	tooltip => "Shows the items currently for sale in this shop",
		2988	},
		2989	"c/resistances" => {
		2990	id => "infobox",
		2991	title => "Resistances",
		2992	reply => undef,
		2993	tooltip => "Shows your resistances",
		2994	},
		2995	"c/pets" => {
		2996	id => "infobox",
		2997	title => "Pets",
		2998	reply => undef,
		2999	tooltip => "Shows information abotu your pets/a specific pet",
		3000	},
		3001	"c/perceiveself" => {
		3002	id => "infobox",
		3003	title => "Perceive Self",
		3004	reply => undef,
		3005	tooltip => "You gained detailed knowledge about yourself",
		3006	},
		3007	"c/uptime" => {
		3008	id => "infobox",
		3009	title => "Uptime",
		3010	reply => undef,
		3011	tooltip => "How long the server has been running since last restart",
		3012	},
		3013	"c/mapinfo" => {
		3014	id => "infobox",
		3015	title => "Map Info",
		3016	reply => undef,
		3017	tooltip => "Information related to the maps",
		3018	},
		3019	"c/party" => {
		3020	id => "party",
		3021	title => "Party",
		3022	reply => "gsay ",
		3023	tooltip => "Messages and chat related to your party",
		3024	},
		3025	"c/death" => {
		3026	id => "death",
		3027	title => "Death",
		3028	reply => undef,
		3029	tooltip => "Reason for and more info about your most recent death",
		3030	},
		3031	"c/say" => $SAY_CHANNEL,
		3032	"c/chat" => $CHAT_CHANNEL,
		3033	);
		3034
		3035	sub cf::client::send_msg {
		3036	my ($self, $channel, $msg, $color, @extra) = @_;
		3037
		3038	$msg = $self->pl->expand_cfpod ($msg)
		3039	unless $color & cf::NDI_VERBATIM;
		3040
		3041	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3042
		3043	# check predefined channels, for the benefit of C
		3044	if ($CHANNEL{$channel}) {
		3045	$channel = $CHANNEL{$channel};
		3046
		3047	$self->ext_msg (channel_info => $channel);
		3048	$channel = $channel->{id};
		3049
		3050	} elsif (ref $channel) {
		3051	# send meta info to client, if not yet sent
		3052	unless (exists $self->{channel}{$channel->{id}}) {
		3053	$self->{channel}{$channel->{id}} = $channel;
		3054	$self->ext_msg (channel_info => $channel);
		3055	}
		3056
		3057	$channel = $channel->{id};
		3058	}
		3059
		3060	return unless @extra || length $msg;
		3061
		3062	# default colour, mask it out
		3063	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3064	if $color & cf::NDI_DEF;
		3065
		3066	my $pkt = "msg "
		3067	. $self->{json_coder}->encode (
		3068	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3069	);
		3070
		3071	$self->send_big_packet ($pkt);
		3072	}
		3073
		3074	=item $client->ext_msg ($type, @msg)
		3075
		3076	Sends an ext event to the client.
		3077
		3078	=cut
		3079
		3080	sub cf::client::ext_msg($$@) {
		3081	my ($self, $type, @msg) = @_;
		3082
		3083	if ($self->extcmd == 2) {
		3084	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3085	} elsif ($self->extcmd == 1) { # TODO: remove
		3086	push @msg, msgtype => "event_$type";
		3087	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3088	}
		3089	}
		3090
		3091	=item $client->ext_reply ($msgid, @msg)
		3092
		3093	Sends an ext reply to the client.
		3094
		3095	=cut
		3096
		3097	sub cf::client::ext_reply($$@) {
		3098	my ($self, $id, @msg) = @_;
		3099
		3100	if ($self->extcmd == 2) {
		3101	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3102	} elsif ($self->extcmd == 1) {
		3103	#TODO: version 1, remove
		3104	unshift @msg, msgtype => "reply", msgid => $id;
		3105	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3106	}
		3107	}
1692		3108
1693	=item $success = $client->query ($flags, "text", \&cb)	3109	=item $success = $client->query ($flags, "text", \&cb)
1694		3110
1695	Queues a query to the client, calling the given callback with	3111	Queues a query to the client, calling the given callback with
1696	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3112	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1697	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3113	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1698		3114
1699	Queries can fail, so check the return code. Or don't, as queries will become	3115	Queries can fail, so check the return code. Or don't, as queries will
1700	reliable at some point in the future.	3116	become reliable at some point in the future.
1701		3117
1702	=cut	3118	=cut
1703		3119
1704	sub cf::client::query {	3120	sub cf::client::query {
1705	my ($self, $flags, $text, $cb) = @_;	3121	my ($self, $flags, $text, $cb) = @_;
…		…
1713	utf8::encode $text;	3129	utf8::encode $text;
1714	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3130	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1715		3131
1716	$self->send_packet ($self->{query_queue}[0][0])	3132	$self->send_packet ($self->{query_queue}[0][0])
1717	if @{ $self->{query_queue} } == 1;	3133	if @{ $self->{query_queue} } == 1;
		3134
		3135	1
1718	}	3136	}
1719		3137
1720	cf::client->attach (	3138	cf::client->attach (
		3139	on_connect => sub {
		3140	my ($ns) = @_;
		3141
		3142	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3143	},
1721	on_reply => sub {	3144	on_reply => sub {
1722	my ($ns, $msg) = @_;	3145	my ($ns, $msg) = @_;
1723		3146
1724	# this weird shuffling is so that direct followup queries	3147	# this weird shuffling is so that direct followup queries
1725	# get handled first	3148	# get handled first
1726	my $queue = delete $ns->{query_queue}	3149	my $queue = delete $ns->{query_queue}
1727	or return; # be conservative, not sure how that can happen, but we saw a crash here	3150	or return; # be conservative, not sure how that can happen, but we saw a crash here
1728		3151
1729	(shift @$queue)->[1]->($msg);	3152	(shift @$queue)->[1]->($msg);
		3153	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1730		3154
1731	push @{ $ns->{query_queue} }, @$queue;	3155	push @{ $ns->{query_queue} }, @$queue;
1732		3156
1733	if (@{ $ns->{query_queue} } == @$queue) {	3157	if (@{ $ns->{query_queue} } == @$queue) {
1734	if (@$queue) {	3158	if (@$queue) {
…		…
1736	} else {	3160	} else {
1737	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3161	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1738	}	3162	}
1739	}	3163	}
1740	},	3164	},
		3165	on_exticmd => sub {
		3166	my ($ns, $buf) = @_;
		3167
		3168	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3169
		3170	if (ref $msg) {
		3171	my ($type, $reply, @payload) =
		3172	"ARRAY" eq ref $msg
		3173	? @$msg
		3174	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3175
		3176	my @reply;
		3177
		3178	if (my $cb = $EXTICMD{$type}) {
		3179	@reply = $cb->($ns, @payload);
		3180	}
		3181
		3182	$ns->ext_reply ($reply, @reply)
		3183	if $reply;
		3184
		3185	} else {
		3186	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3187	}
		3188
		3189	cf::override;
		3190	},
1741	);	3191	);
1742		3192
1743	=item $client->async (\&cb)	3193	=item $client->async (\&cb)
1744		3194
1745	Create a new coroutine, running the specified callback. The coroutine will	3195	Create a new coroutine, running the specified callback. The coroutine will
…		…
1761		3211
1762	$coro	3212	$coro
1763	}	3213	}
1764		3214
1765	cf::client->attach (	3215	cf::client->attach (
1766	on_destroy => sub {	3216	on_client_destroy => sub {
1767	my ($ns) = @_;	3217	my ($ns) = @_;
1768		3218
1769	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3219	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1770	},	3220	},
1771	);	3221	);
…		…
1786	our $safe = new Safe "safe";	3236	our $safe = new Safe "safe";
1787	our $safe_hole = new Safe::Hole;	3237	our $safe_hole = new Safe::Hole;
1788		3238
1789	$SIG{FPE} = 'IGNORE';	3239	$SIG{FPE} = 'IGNORE';
1790		3240
1791	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3241	$safe->permit_only (Opcode::opset qw(
		3242	:base_core :base_mem :base_orig :base_math :base_loop
		3243	grepstart grepwhile mapstart mapwhile
		3244	sort time
		3245	));
1792		3246
1793	# here we export the classes and methods available to script code	3247	# here we export the classes and methods available to script code
1794		3248
1795	=pod	3249	=pod
1796		3250
1797	The following fucntions and emthods are available within a safe environment:	3251	The following functions and methods are available within a safe environment:
1798		3252
1799	cf::object contr pay_amount pay_player map	3253	cf::object
		3254	contr pay_amount pay_player map x y force_find force_add destroy
		3255	insert remove name archname title slaying race decrease split
		3256	value
		3257
1800	cf::object::player player	3258	cf::object::player
1801	cf::player peaceful	3259	player
1802	cf::map trigger	3260
		3261	cf::player
		3262	peaceful
		3263
		3264	cf::map
		3265	trigger
1803		3266
1804	=cut	3267	=cut
1805		3268
1806	for (	3269	for (
1807	["cf::object" => qw(contr pay_amount pay_player map)],	3270	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3271	insert remove inv nrof name archname title slaying race
		3272	decrease split destroy change_exp value msg lore send_msg)],
1808	["cf::object::player" => qw(player)],	3273	["cf::object::player" => qw(player)],
1809	["cf::player" => qw(peaceful)],	3274	["cf::player" => qw(peaceful send_msg)],
1810	["cf::map" => qw(trigger)],	3275	["cf::map" => qw(trigger)],
1811	) {	3276	) {
1812	no strict 'refs';
1813	my ($pkg, @funs) = @$_;	3277	my ($pkg, @funs) = @$_;
1814	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3278	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1815	for @funs;	3279	for @funs;
1816	}	3280	}
1817		3281
…		…
1832		3296
1833	my $qcode = $code;	3297	my $qcode = $code;
1834	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3298	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1835	$qcode =~ s/\n/\\n/g;	3299	$qcode =~ s/\n/\\n/g;
1836		3300
		3301	%vars = (_dummy => 0) unless %vars;
		3302
		3303	my @res;
1837	local $_;	3304	local $_;
1838	local @safe::cf::_safe_eval_args = values %vars;
1839		3305
1840	my $eval =	3306	my $eval =
1841	"do {\n"	3307	"do {\n"
1842	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3308	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1843	. "#line 0 \"{$qcode}\"\n"	3309	. "#line 0 \"{$qcode}\"\n"
1844	. $code	3310	. $code
1845	. "\n}"	3311	. "\n}"
1846	;	3312	;
1847		3313
		3314	if ($CFG{safe_eval}) {
1848	sub_generation_inc;	3315	sub_generation_inc;
		3316	local @safe::cf::_safe_eval_args = values %vars;
1849	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3317	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1850	sub_generation_inc;	3318	sub_generation_inc;
		3319	} else {
		3320	local @cf::_safe_eval_args = values %vars;
		3321	@res = wantarray ? eval eval : scalar eval $eval;
		3322	}
1851		3323
1852	if ($@) {	3324	if ($@) {
1853	warn "$@";	3325	warn "$@",
1854	warn "while executing safe code '$code'\n";	3326	"while executing safe code '$code'\n",
1855	warn "with arguments " . (join " ", %vars) . "\n";	3327	"with arguments " . (join " ", %vars) . "\n";
1856	}	3328	}
1857		3329
1858	wantarray ? @res : $res[0]	3330	wantarray ? @res : $res[0]
1859	}	3331	}
1860		3332
…		…
1874	=cut	3346	=cut
1875		3347
1876	sub register_script_function {	3348	sub register_script_function {
1877	my ($fun, $cb) = @_;	3349	my ($fun, $cb) = @_;
1878		3350
1879	no strict 'refs';	3351	$fun = "safe::$fun" if $CFG{safe_eval};
1880	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3352	*$fun = $safe_hole->wrap ($cb);
1881	}	3353	}
1882		3354
1883	=back	3355	=back
1884		3356
1885	=cut	3357	=cut
1886		3358
1887	#############################################################################	3359	#############################################################################
		3360	# the server's init and main functions
1888		3361
1889	=head2 EXTENSION DATABASE SUPPORT	3362	# async inc loader. yay.
		3363	sub inc_loader {
		3364	my $mod = $_[1];
1890		3365
1891	Crossfire maintains a very simple database for extension use. It can	3366	if (in_main && !tick_inhibit) {
1892	currently store anything that can be serialised using Storable, which	3367	Carp::cluck "ERROR: attempted synchronous perl module load ($mod)";
1893	excludes objects.	3368	} else {
1894		3369	debug "loading perl module $mod\n";
1895	The parameter C<$family> should best start with the name of the extension
1896	using it, it should be unique.
1897
1898	=over 4
1899
1900	=item $hashref = cf::db_get $family
1901
1902	Return a hashref for use by the extension C<$family>, which can be
1903	modified. After modifications, you have to call C<cf::db_dirty> or
1904	C<cf::db_sync>.
1905
1906	=item $value = cf::db_get $family => $key
1907
1908	Returns a single value from the database
1909
1910	=item cf::db_put $family => $hashref
1911
1912	Stores the given family hashref into the database. Updates are delayed, if
1913	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1914
1915	=item cf::db_put $family => $key => $value
1916
1917	Stores the given C<$value> in the family hash. Updates are delayed, if you
1918	want the data to be synced to disk immediately, use C<cf::db_sync>.
1919
1920	=item cf::db_dirty
1921
1922	Marks the database as dirty, to be updated at a later time.
1923
1924	=item cf::db_sync
1925
1926	Immediately write the database to disk I<if it is dirty>.
1927
1928	=cut
1929
1930	our $DB;
1931
1932	{
1933	my $path = cf::localdir . "/database.pst";
1934
1935	sub db_load() {
1936	$DB = stat $path ? Storable::retrieve $path : { };
1937	}	3370	}
1938		3371
1939	my $pid;	3372	# 1. find real file
		3373	for my $dir (@ORIG_INC) {
		3374	ref $dir and next;
		3375	0 <= Coro::AIO::aio_load "$dir/$mod", my $data
		3376	or next;
1940		3377
1941	sub db_save() {	3378	$data = "#line 1 $dir/$mod\n$data";
1942	waitpid $pid, 0 if $pid;
1943	if (0 == ($pid = fork)) {
1944	$DB->{_meta}{version} = 1;
1945	Storable::nstore $DB, "$path~";
1946	rename "$path~", $path;
1947	cf::_exit 0 if defined $pid;
1948	}
1949	}
1950		3379
1951	my $dirty;	3380	open my $fh, "<", \$data or die;
1952		3381
1953	sub db_sync() {	3382	return $fh;
1954	db_save if $dirty;
1955	undef $dirty;
1956	}	3383	}
1957		3384
1958	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	3385	()
1959	db_sync;	3386	}
		3387
		3388	sub init_inc {
		3389	# save original @INC
		3390	@ORIG_INC = ($LIBDIR, @INC) unless @ORIG_INC;
		3391
		3392	# make sure we can do scalar-opens
		3393	open my $dummy, "<", \my $dummy2;
		3394
		3395	# execute some stuff so perl load's some of the core modules
		3396	/Ü/ =~ /ü/i;
		3397	eval { &Storable::nstore_fd };
		3398
		3399	@INC = (\&inc_loader, @ORIG_INC); # @ORIG_INC is needed for DynaLoader, AutoLoad etc.
		3400
		3401	debug "module loading will be asynchronous from this point on.";
		3402	}
		3403
		3404	sub load_facedata($) {
		3405	my ($path) = @_;
		3406
		3407	# HACK to clear player env face cache, we need some signal framework
		3408	# for this (global event?)
		3409	%ext::player_env::MUSIC_FACE_CACHE = ();
		3410
		3411	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3412
		3413	trace "loading facedata from $path\n";
		3414
		3415	my $facedata;
		3416	0 < aio_load $path, $facedata
		3417	or die "$path: $!";
		3418
		3419	$facedata = Coro::Storable::thaw $facedata;
		3420
		3421	$facedata->{version} == 2
		3422	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3423
		3424	# patch in the exptable
		3425	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3426	$facedata->{resource}{"res/exp_table"} = {
		3427	type => FT_RSRC,
		3428	data => $exp_table,
		3429	hash => (Digest::MD5::md5 $exp_table),
1960	});	3430	};
		3431	cf::cede_to_tick;
1961		3432
1962	sub db_dirty() {
1963	$dirty = 1;
1964	$idle->start;
1965	}	3433	{
		3434	my $faces = $facedata->{faceinfo};
1966		3435
1967	sub db_get($;$) {	3436	while (my ($face, $info) = each %$faces) {
1968	@_ >= 2	3437	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1969	? $DB->{$_[0]}{$_[1]}
1970	: ($DB->{$_[0]} ||= { })
1971	}
1972		3438
1973	sub db_put($$;$) {	3439	cf::face::set_visibility $idx, $info->{visibility};
1974	if (@_ >= 3) {	3440	cf::face::set_magicmap $idx, $info->{magicmap};
1975	$DB->{$_[0]}{$_[1]} = $_[2];	3441	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1976	} else {	3442	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1977	$DB->{$_[0]} = $_[1];
1978	}
1979	db_dirty;
1980	}
1981		3443
1982	cf::global->attach (	3444	cf::cede_to_tick;
1983	prio => 10000,
1984	on_cleanup => sub {
1985	db_sync;
1986	},	3445	}
1987	);
1988	}
1989		3446
1990	#############################################################################	3447	while (my ($face, $info) = each %$faces) {
1991	# the server's main()	3448	next unless $info->{smooth};
1992		3449
1993	sub cfg_load {	3450	my $idx = cf::face::find $face
		3451	or next;
		3452
		3453	if (my $smooth = cf::face::find $info->{smooth}) {
		3454	cf::face::set_smooth $idx, $smooth;
		3455	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3456	} else {
		3457	error "smooth face '$info->{smooth}' not found for face '$face'";
		3458	}
		3459
		3460	cf::cede_to_tick;
		3461	}
		3462	}
		3463
		3464	{
		3465	my $anims = $facedata->{animinfo};
		3466
		3467	while (my ($anim, $info) = each %$anims) {
		3468	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3469	cf::cede_to_tick;
		3470	}
		3471
		3472	cf::anim::invalidate_all; # d'oh
		3473	}
		3474
		3475	{
		3476	my $res = $facedata->{resource};
		3477
		3478	while (my ($name, $info) = each %$res) {
		3479	if (defined $info->{type}) {
		3480	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3481
		3482	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3483	cf::face::set_type $idx, $info->{type};
		3484	} else {
		3485	$RESOURCE{$name} = $info; # unused
		3486	}
		3487
		3488	cf::cede_to_tick;
		3489	}
		3490	}
		3491
		3492	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3493
		3494	1
		3495	}
		3496
		3497	register_exticmd fx_want => sub {
		3498	my ($ns, $want) = @_;
		3499
		3500	while (my ($k, $v) = each %$want) {
		3501	$ns->fx_want ($k, $v);
		3502	}
		3503	};
		3504
		3505	sub load_resource_file($) {
		3506	my $guard = lock_acquire "load_resource_file";
		3507
		3508	my $status = load_resource_file_ $_[0];
		3509	get_slot 0.1, 100;
		3510	cf::arch::commit_load;
		3511
		3512	$status
		3513	}
		3514
		3515	sub reload_regions {
		3516	# HACK to clear player env face cache, we need some signal framework
		3517	# for this (global event?)
		3518	%ext::player_env::MUSIC_FACE_CACHE = ();
		3519
		3520	load_resource_file "$MAPDIR/regions"
		3521	or die "unable to load regions file\n";
		3522
		3523	for (cf::region::list) {
		3524	$_->{match} = qr/$_->{match}/
		3525	if exists $_->{match};
		3526	}
		3527	}
		3528
		3529	sub reload_facedata {
		3530	load_facedata "$DATADIR/facedata"
		3531	or die "unable to load facedata\n";
		3532	}
		3533
		3534	sub reload_archetypes {
		3535	load_resource_file "$DATADIR/archetypes"
		3536	or die "unable to load archetypes\n";
		3537	}
		3538
		3539	sub reload_treasures {
		3540	load_resource_file "$DATADIR/treasures"
		3541	or die "unable to load treasurelists\n";
		3542	}
		3543
		3544	sub reload_sound {
		3545	trace "loading sound config from $DATADIR/sound\n";
		3546
		3547	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3548	or die "$DATADIR/sound $!";
		3549
		3550	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3551
		3552	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3553	my $sound = $soundconf->{compat}[$_]
		3554	or next;
		3555
		3556	my $face = cf::face::find "sound/$sound->[1]";
		3557	cf::sound::set $sound->[0] => $face;
		3558	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3559	}
		3560
		3561	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3562	my $face = cf::face::find "sound/$v";
		3563	cf::sound::set $k => $face;
		3564	}
		3565	}
		3566
		3567	sub reload_resources {
		3568	trace "reloading resource files...\n";
		3569
		3570	reload_facedata;
		3571	reload_sound;
		3572	reload_archetypes;
		3573	reload_regions;
		3574	reload_treasures;
		3575
		3576	trace "finished reloading resource files\n";
		3577	}
		3578
		3579	sub reload_config {
		3580	trace "reloading config file...\n";
		3581
1994	open my $fh, "<:utf8", cf::confdir . "/config"	3582	open my $fh, "<:utf8", "$CONFDIR/config"
1995	or return;	3583	or return;
1996		3584
1997	local $/;	3585	local $/;
1998	*CFG = YAML::Syck::Load <$fh>;	3586	*CFG = YAML::XS::Load scalar <$fh>;
1999		3587
2000	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3588	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2001		3589
2002	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3590	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2003	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3591	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2004		3592
2005	if (exists $CFG{mlockall}) {	3593	if (exists $CFG{mlockall}) {
2006	eval {	3594	eval {
2007	$CFG{mlockall} ? &mlockall : &munlockall	3595	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2008	and die "WARNING: m(un)lockall failed: $!\n";	3596	and die "WARNING: m(un)lockall failed: $!\n";
2009	};	3597	};
2010	warn $@ if $@;	3598	warn $@ if $@;
2011	}	3599	}
		3600
		3601	trace "finished reloading resource files\n";
		3602	}
		3603
		3604	sub pidfile() {
		3605	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3606	or die "$PIDFILE: $!";
		3607	flock $fh, &Fcntl::LOCK_EX
		3608	or die "$PIDFILE: flock: $!";
		3609	$fh
		3610	}
		3611
		3612	# make sure only one server instance is running at any one time
		3613	sub atomic {
		3614	my $fh = pidfile;
		3615
		3616	my $pid = <$fh>;
		3617	kill 9, $pid if $pid > 0;
		3618
		3619	seek $fh, 0, 0;
		3620	print $fh $$;
		3621	}
		3622
		3623	sub main_loop {
		3624	trace "EV::loop starting\n";
		3625	if (1) {
		3626	EV::loop;
		3627	}
		3628	trace "EV::loop returned\n";
		3629	goto &main_loop unless $REALLY_UNLOOP;
2012	}	3630	}
2013		3631
2014	sub main {	3632	sub main {
		3633	cf::init_globals; # initialise logging
		3634
		3635	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3636	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3637	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3638	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3639
		3640	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3641
2015	# we must not ever block the main coroutine	3642	# we must not ever block the main coroutine
2016	local $Coro::idle = sub {	3643	local $Coro::idle = sub {
2017	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3644	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2018	async { Event::one_event };	3645	(async {
		3646	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3647	EV::loop EV::LOOP_ONESHOT;
		3648	})->prio (Coro::PRIO_MAX);
2019	};	3649	};
2020		3650
2021	cfg_load;	3651	evthread_start IO::AIO::poll_fileno;
2022	db_load;	3652
		3653	cf::sync_job {
		3654	init_inc;
		3655
		3656	cf::init_experience;
		3657	cf::init_anim;
		3658	cf::init_attackmess;
		3659	cf::init_dynamic;
		3660
		3661	cf::load_settings;
		3662	cf::load_materials;
		3663
		3664	reload_resources;
		3665	reload_config;
		3666	db_init;
		3667
		3668	cf::init_uuid;
		3669	cf::init_signals;
		3670	cf::init_skills;
		3671
		3672	cf::init_beforeplay;
		3673
		3674	atomic;
		3675
2023	load_extensions;	3676	load_extensions;
2024	Event::loop;	3677
		3678	utime time, time, $RUNTIMEFILE;
		3679
		3680	# no (long-running) fork's whatsoever before this point(!)
		3681	use POSIX ();
		3682	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3683
		3684	(pop @POST_INIT)->(0) while @POST_INIT;
		3685	};
		3686
		3687	cf::object::thawer::errors_are_fatal 0;
		3688	info "parse errors in files are no longer fatal from this point on.\n";
		3689
		3690	my $free_main; $free_main = EV::idle sub {
		3691	undef $free_main;
		3692	undef &main; # free gobs of memory :)
		3693	};
		3694
		3695	goto &main_loop;
2025	}	3696	}
2026		3697
2027	#############################################################################	3698	#############################################################################
2028	# initialisation	3699	# initialisation and cleanup
2029		3700
		3701	# install some emergency cleanup handlers
		3702	BEGIN {
		3703	our %SIGWATCHER = ();
		3704	for my $signal (qw(INT HUP TERM)) {
		3705	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3706	cf::cleanup "SIG$signal";
		3707	};
		3708	}
		3709	}
		3710
		3711	sub write_runtime_sync {
		3712	my $t0 = AE::time;
		3713
		3714	# first touch the runtime file to show we are still running:
		3715	# the fsync below can take a very very long time.
		3716
		3717	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3718
		3719	my $guard = cf::lock_acquire "write_runtime";
		3720
		3721	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3722	or return;
		3723
		3724	my $value = $cf::RUNTIME + 90 + 10;
		3725	# 10 is the runtime save interval, for a monotonic clock
		3726	# 60 allows for the watchdog to kill the server.
		3727
		3728	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3729	and return;
		3730
		3731	# always fsync - this file is important
		3732	aio_fsync $fh
		3733	and return;
		3734
		3735	# touch it again to show we are up-to-date
		3736	aio_utime $fh, undef, undef;
		3737
		3738	close $fh
		3739	or return;
		3740
		3741	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3742	and return;
		3743
		3744	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3745
		3746	1
		3747	}
		3748
		3749	our $uuid_lock;
		3750	our $uuid_skip;
		3751
		3752	sub write_uuid_sync($) {
		3753	$uuid_skip ||= $_[0];
		3754
		3755	return if $uuid_lock;
		3756	local $uuid_lock = 1;
		3757
		3758	my $uuid = "$LOCALDIR/uuid";
		3759
		3760	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3761	or return;
		3762
		3763	my $value = uuid_seq uuid_cur;
		3764
		3765	unless ($value) {
		3766	info "cowardly refusing to write zero uuid value!\n";
		3767	return;
		3768	}
		3769
		3770	my $value = uuid_str $value + $uuid_skip;
		3771	$uuid_skip = 0;
		3772
		3773	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3774	and return;
		3775
		3776	# always fsync - this file is important
		3777	aio_fsync $fh
		3778	and return;
		3779
		3780	close $fh
		3781	or return;
		3782
		3783	aio_rename "$uuid~", $uuid
		3784	and return;
		3785
		3786	trace "uuid file written ($value).\n";
		3787
		3788	1
		3789
		3790	}
		3791
		3792	sub write_uuid($$) {
		3793	my ($skip, $sync) = @_;
		3794
		3795	$sync ? write_uuid_sync $skip
		3796	: async { write_uuid_sync $skip };
		3797	}
		3798
		3799	sub emergency_save() {
		3800	my $freeze_guard = cf::freeze_mainloop;
		3801
		3802	info "emergency_perl_save: enter\n";
		3803
		3804	# this is a trade-off: we want to be very quick here, so
		3805	# save all maps without fsync, and later call a global sync
		3806	# (which in turn might be very very slow)
		3807	local $USE_FSYNC = 0;
		3808
		3809	cf::sync_job {
		3810	cf::write_runtime_sync; # external watchdog should not bark
		3811
		3812	# use a peculiar iteration method to avoid tripping on perl
		3813	# refcount bugs in for. also avoids problems with players
		3814	# and maps saved/destroyed asynchronously.
		3815	info "emergency_perl_save: begin player save\n";
		3816	for my $login (keys %cf::PLAYER) {
		3817	my $pl = $cf::PLAYER{$login} or next;
		3818	$pl->valid or next;
		3819	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3820	$pl->save;
		3821	}
		3822	info "emergency_perl_save: end player save\n";
		3823
		3824	cf::write_runtime_sync; # external watchdog should not bark
		3825
		3826	info "emergency_perl_save: begin map save\n";
		3827	for my $path (keys %cf::MAP) {
		3828	my $map = $cf::MAP{$path} or next;
		3829	$map->valid or next;
		3830	$map->save;
		3831	}
		3832	info "emergency_perl_save: end map save\n";
		3833
		3834	cf::write_runtime_sync; # external watchdog should not bark
		3835
		3836	info "emergency_perl_save: begin database checkpoint\n";
		3837	BDB::db_env_txn_checkpoint $DB_ENV;
		3838	info "emergency_perl_save: end database checkpoint\n";
		3839
		3840	info "emergency_perl_save: begin write uuid\n";
		3841	write_uuid_sync 1;
		3842	info "emergency_perl_save: end write uuid\n";
		3843
		3844	cf::write_runtime_sync; # external watchdog should not bark
		3845
		3846	trace "emergency_perl_save: syncing database to disk";
		3847	BDB::db_env_txn_checkpoint $DB_ENV;
		3848
		3849	info "emergency_perl_save: starting sync\n";
		3850	IO::AIO::aio_sync sub {
		3851	info "emergency_perl_save: finished sync\n";
		3852	};
		3853
		3854	cf::write_runtime_sync; # external watchdog should not bark
		3855
		3856	trace "emergency_perl_save: flushing outstanding aio requests";
		3857	while (IO::AIO::nreqs || BDB::nreqs) {
		3858	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3859	}
		3860
		3861	cf::write_runtime_sync; # external watchdog should not bark
		3862	};
		3863
		3864	info "emergency_perl_save: leave\n";
		3865	}
		3866
		3867	sub post_cleanup {
		3868	my ($make_core) = @_;
		3869
		3870	IO::AIO::flush;
		3871
		3872	error Carp::longmess "post_cleanup backtrace"
		3873	if $make_core;
		3874
		3875	my $fh = pidfile;
		3876	unlink $PIDFILE if <$fh> == $$;
		3877	}
		3878
		3879	# a safer delete_package, copied from Symbol
		3880	sub clear_package($) {
		3881	my $pkg = shift;
		3882
		3883	# expand to full symbol table name if needed
		3884	unless ($pkg =~ /^main::.*::$/) {
		3885	$pkg = "main$pkg" if $pkg =~ /^::/;
		3886	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3887	$pkg .= '::' unless $pkg =~ /::$/;
		3888	}
		3889
		3890	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3891	my $stem_symtab = *{$stem}{HASH};
		3892
		3893	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3894	or return;
		3895
		3896	# clear all symbols
		3897	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3898	for my $name (keys %$leaf_symtab) {
		3899	_gv_clear *{"$pkg$name"};
		3900	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3901	}
		3902	}
		3903
2030	sub reload() {	3904	sub do_reload_perl() {
2031	# can/must only be called in main	3905	# can/must only be called in main
2032	if ($Coro::current != $Coro::main) {	3906	if (in_main) {
2033	warn "can only reload from main coroutine\n";	3907	error "can only reload from main coroutine";
2034	return;	3908	return;
2035	}	3909	}
2036		3910
		3911	return if $RELOAD++;
		3912
		3913	my $t1 = AE::time;
		3914
		3915	while ($RELOAD) {
2037	warn "reloading...";	3916	info "reloading...";
2038		3917
2039	my $guard = freeze_mainloop;	3918	trace "entering sync_job";
		3919
		3920	cf::sync_job {
2040	cf::emergency_save;	3921	cf::emergency_save;
2041		3922
2042	eval {
2043	# if anything goes wrong in here, we should simply crash as we already saved
2044
2045	# cancel all watchers
2046	for (Event::all_watchers) {
2047	$_->cancel if $_->data & WF_AUTOCANCEL;
2048	}
2049
2050	# cancel all extension coros	3923	trace "cancelling all extension coros";
2051	$_->cancel for values %EXT_CORO;	3924	$_->cancel for values %EXT_CORO;
2052	%EXT_CORO = ();	3925	%EXT_CORO = ();
2053		3926
2054	# unload all extensions	3927	trace "removing commands";
2055	for (@exts) {	3928	%COMMAND = ();
2056	warn "unloading <$_>";
2057	unload_extension $_;
2058	}
2059		3929
2060	# unload all modules loaded from $LIBDIR	3930	trace "removing ext/exti commands";
2061	while (my ($k, $v) = each %INC) {	3931	%EXTCMD = ();
2062	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3932	%EXTICMD = ();
2063		3933
2064	warn "removing <$k>";	3934	trace "unloading/nuking all extensions";
2065	delete $INC{$k};	3935	for my $pkg (@EXTS) {
		3936	trace "... unloading $pkg";
2066		3937
2067	$k =~ s/\.pm$//;
2068	$k =~ s/\//::/g;
2069
2070	if (my $cb = $k->can ("unload_module")) {	3938	if (my $cb = $pkg->can ("unload")) {
		3939	eval {
2071	$cb->();	3940	$cb->($pkg);
		3941	1
		3942	} or error "$pkg unloaded, but with errors: $@";
		3943	}
		3944
		3945	trace "... clearing $pkg";
		3946	clear_package $pkg;
2072	}	3947	}
2073		3948
2074	Symbol::delete_package $k;	3949	trace "unloading all perl modules loaded from $LIBDIR";
		3950	while (my ($k, $v) = each %INC) {
		3951	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3952
		3953	trace "... unloading $k";
		3954	delete $INC{$k};
		3955
		3956	$k =~ s/\.pm$//;
		3957	$k =~ s/\//::/g;
		3958
		3959	if (my $cb = $k->can ("unload_module")) {
		3960	$cb->();
		3961	}
		3962
		3963	clear_package $k;
2075	}	3964	}
2076		3965
2077	# sync database to disk
2078	cf::db_sync;
2079	IO::AIO::flush;
2080
2081	# get rid of safe::, as good as possible	3966	trace "getting rid of safe::, as good as possible";
2082	Symbol::delete_package "safe::$_"	3967	clear_package "safe::$_"
2083	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3968	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2084		3969
2085	# remove register_script_function callbacks	3970	trace "unloading cf.pm \"a bit\"";
2086	# TODO
2087
2088	# unload cf.pm "a bit"
2089	delete $INC{"cf.pm"};	3971	delete $INC{"cf.pm"};
		3972	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2090		3973
2091	# don't, removes xs symbols, too,	3974	# don't, removes xs symbols, too,
2092	# and global variables created in xs	3975	# and global variables created in xs
2093	#Symbol::delete_package __PACKAGE__;	3976	#clear_package __PACKAGE__;
2094		3977
2095	# reload cf.pm	3978	info "unload completed, starting to reload now";
		3979
2096	warn "reloading cf.pm";	3980	trace "reloading cf.pm";
2097	require cf;	3981	require cf;
2098	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3982	cf::_connect_to_perl_1;
2099		3983
2100	# load config and database again	3984	trace "loading config and database again";
2101	cf::cfg_load;	3985	cf::reload_config;
2102	cf::db_load;
2103		3986
2104	# load extensions
2105	warn "load extensions";	3987	trace "loading extensions";
2106	cf::load_extensions;	3988	cf::load_extensions;
2107		3989
2108	# reattach attachments to objects	3990	if ($REATTACH_ON_RELOAD) {
2109	warn "reattach";	3991	trace "reattaching attachments to objects/players";
2110	_global_reattach;	3992	_global_reattach; # objects, sockets
		3993	trace "reattaching attachments to maps";
		3994	reattach $_ for values %MAP;
		3995	trace "reattaching attachments to players";
		3996	reattach $_ for values %PLAYER;
		3997	}
		3998
		3999	trace "running post_init jobs";
		4000	(pop @POST_INIT)->(1) while @POST_INIT;
		4001
		4002	trace "leaving sync_job";
		4003
		4004	1
		4005	} or do {
		4006	error $@;
		4007	cf::cleanup "error while reloading, exiting.";
		4008	};
		4009
		4010	info "reloaded";
		4011	--$RELOAD;
		4012	}
		4013
		4014	$t1 = AE::time - $t1;
		4015	info "reload completed in ${t1}s\n";
		4016	};
		4017
		4018	our $RELOAD_WATCHER; # used only during reload
		4019
		4020	sub reload_perl() {
		4021	# doing reload synchronously and two reloads happen back-to-back,
		4022	# coro crashes during coro_state_free->destroy here.
		4023
		4024	$RELOAD_WATCHER ||= cf::async {
		4025	Coro::AIO::aio_wait cache_extensions;
		4026
		4027	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4028	do_reload_perl;
		4029	undef $RELOAD_WATCHER;
		4030	};
2111	};	4031	};
2112
2113	if ($@) {
2114	warn $@;
2115	warn "error while reloading, exiting.";
2116	exit 1;
2117	}
2118
2119	warn "reloaded successfully";
2120	};
2121
2122	#############################################################################
2123
2124	unless ($LINK_MAP) {
2125	$LINK_MAP = cf::map::new;
2126
2127	$LINK_MAP->width (41);
2128	$LINK_MAP->height (41);
2129	$LINK_MAP->alloc;
2130	$LINK_MAP->path ("{link}");
2131	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2132	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2133
2134	# dirty hack because... archetypes are not yet loaded
2135	Event->timer (
2136	after => 2,
2137	cb => sub {
2138	$_[0]->w->cancel;
2139
2140	# provide some exits "home"
2141	my $exit = cf::object::new "exit";
2142
2143	$exit->slaying ($EMERGENCY_POSITION->[0]);
2144	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2145	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2146
2147	$LINK_MAP->insert ($exit->clone, 19, 19);
2148	$LINK_MAP->insert ($exit->clone, 19, 20);
2149	$LINK_MAP->insert ($exit->clone, 19, 21);
2150	$LINK_MAP->insert ($exit->clone, 20, 19);
2151	$LINK_MAP->insert ($exit->clone, 20, 21);
2152	$LINK_MAP->insert ($exit->clone, 21, 19);
2153	$LINK_MAP->insert ($exit->clone, 21, 20);
2154	$LINK_MAP->insert ($exit->clone, 21, 21);
2155
2156	$exit->destroy;
2157	});
2158
2159	$LINK_MAP->{deny_save} = 1;
2160	$LINK_MAP->{deny_reset} = 1;
2161
2162	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2163	}	4032	}
2164
2165	register "<global>", __PACKAGE__;
2166		4033
2167	register_command "reload" => sub {	4034	register_command "reload" => sub {
2168	my ($who, $arg) = @_;	4035	my ($who, $arg) = @_;
2169		4036
2170	if ($who->flag (FLAG_WIZ)) {	4037	if ($who->flag (FLAG_WIZ)) {
2171	$who->message ("start of reload.");
2172	reload;
2173	$who->message ("end of reload.");	4038	$who->message ("reloading server.");
		4039	async {
		4040	$Coro::current->{desc} = "perl_reload";
		4041	reload_perl;
		4042	};
2174	}	4043	}
2175	};	4044	};
2176		4045
2177	unshift @INC, $LIBDIR;	4046	#############################################################################
2178		4047
2179	$TICK_WATCHER = Event->timer (	4048	my $bug_warning = 0;
2180	reentrant => 0,	4049
2181	prio => 0,	4050	our @WAIT_FOR_TICK;
2182	at => $NEXT_TICK || $TICK,	4051	our @WAIT_FOR_TICK_BEGIN;
2183	data => WF_AUTOCANCEL,	4052
2184	cb => sub {	4053	sub wait_for_tick {
		4054	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4055
		4056	my $signal = new Coro::Signal;
		4057	push @WAIT_FOR_TICK, $signal;
		4058	$signal->wait;
		4059	}
		4060
		4061	sub wait_for_tick_begin {
		4062	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4063
		4064	my $signal = new Coro::Signal;
		4065	push @WAIT_FOR_TICK_BEGIN, $signal;
		4066	$signal->wait;
		4067	}
		4068
		4069	sub tick {
		4070	if ($Coro::current != $Coro::main) {
		4071	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4072	unless ++$bug_warning > 10;
		4073	return;
		4074	}
		4075
2185	cf::server_tick; # one server iteration	4076	cf::server_tick; # one server iteration
2186	$RUNTIME += $TICK;
2187	$NEXT_TICK += $TICK;
2188		4077
2189	# if we are delayed by four ticks or more, skip them all	4078	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2190	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2191		4079
2192	$TICK_WATCHER->at ($NEXT_TICK);	4080	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2193	$TICK_WATCHER->start;	4081	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2194	},	4082	Coro::async_pool {
2195	);	4083	$Coro::current->{desc} = "runtime saver";
2196
2197	IO::AIO::max_poll_time $TICK * 0.2;
2198
2199	Event->io (
2200	fd => IO::AIO::poll_fileno,
2201	poll => 'r',
2202	prio => 5,
2203	data => WF_AUTOCANCEL,
2204	cb => \&IO::AIO::poll_cb,
2205	);
2206
2207	Event->timer (
2208	data => WF_AUTOCANCEL,
2209	after => 0,
2210	interval => 10,
2211	cb => sub {
2212	(Coro::unblock_sub {
2213	write_runtime	4084	write_runtime_sync
2214	or warn "ERROR: unable to write runtime file: $!";	4085	or error "ERROR: unable to write runtime file: $!";
2215	})->();	4086	};
2216	},	4087	}
2217	);	4088
		4089	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4090	$sig->send;
		4091	}
		4092	while (my $sig = shift @WAIT_FOR_TICK) {
		4093	$sig->send;
		4094	}
		4095
		4096	$LOAD = ($NOW - $TICK_START) / $TICK;
		4097	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4098
		4099	if (0) {
		4100	if ($NEXT_TICK) {
		4101	my $jitter = $TICK_START - $NEXT_TICK;
		4102	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4103	debug "jitter $JITTER\n";#d#
		4104	}
		4105	}
		4106	}
		4107
		4108	{
		4109	# configure BDB
		4110
		4111	BDB::min_parallel 16;
		4112	BDB::max_poll_reqs $TICK * 0.1;
		4113	$AnyEvent::BDB::WATCHER->priority (1);
		4114
		4115	unless ($DB_ENV) {
		4116	$DB_ENV = BDB::db_env_create;
		4117	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4118	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4119	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4120	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4121	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4122
		4123	cf::sync_job {
		4124	eval {
		4125	BDB::db_env_open
		4126	$DB_ENV,
		4127	$BDBDIR,
		4128	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4129	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4130	0666;
		4131
		4132	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4133	};
		4134
		4135	cf::cleanup "db_env_open(db): $@" if $@;
		4136	};
		4137	}
		4138
		4139	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4140	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4141	};
		4142	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4143	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4144	};
		4145	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4146	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4147	};
		4148	}
		4149
		4150	{
		4151	# configure IO::AIO
		4152
		4153	IO::AIO::min_parallel 8;
		4154	IO::AIO::max_poll_time $TICK * 0.1;
		4155	undef $AnyEvent::AIO::WATCHER;
		4156	}
		4157
		4158	my $_log_backtrace;
		4159
		4160	sub _log_backtrace {
		4161	my ($msg, @addr) = @_;
		4162
		4163	$msg =~ s/\n//;
		4164
		4165	# limit the # of concurrent backtraces
		4166	if ($_log_backtrace < 2) {
		4167	++$_log_backtrace;
		4168	my $perl_bt = Carp::longmess $msg;
		4169	async {
		4170	$Coro::current->{desc} = "abt $msg";
		4171
		4172	my @bt = fork_call {
		4173	@addr = map { sprintf "%x", $_ } @addr;
		4174	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4175	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4176	or die "addr2line: $!";
		4177
		4178	my @funcs;
		4179	my @res = <$fh>;
		4180	chomp for @res;
		4181	while (@res) {
		4182	my ($func, $line) = splice @res, 0, 2, ();
		4183	push @funcs, "[$func] $line";
		4184	}
		4185
		4186	@funcs
		4187	};
		4188
		4189	LOG llevInfo, "[ABT] $perl_bt\n";
		4190	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4191	LOG llevInfo, "[ABT] $_\n" for @bt;
		4192	--$_log_backtrace;
		4193	};
		4194	} else {
		4195	LOG llevInfo, "[ABT] $msg\n";
		4196	LOG llevInfo, "[ABT] [suppressed]\n";
		4197	}
		4198	}
		4199
		4200	# load additional modules
		4201	require "cf/$_.pm" for @EXTRA_MODULES;
		4202	cf::_connect_to_perl_2;
2218		4203
2219	END { cf::emergency_save }	4204	END { cf::emergency_save }
2220		4205
2221	1	4206	1
2222		4207

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