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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.130 by root, Thu Jan 4 00:08:08 2007 UTC vs.
Revision 1.532 by root, Thu Apr 29 07:32:34 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
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
20	use Digest::MD5;	55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
21	use Fcntl;	58	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
24	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
25		64
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
27		66
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		71
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE; # unused
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	121	our $NEXT_TICK;
45	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
46		130
47	our %CFG;	131	our %CFG;
48		132
49	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
51		136
52	our %MAP; # all maps	137	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	138	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	139	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	140
56	our %EXT_CORO;	141	# used to convert map paths into valid unix filenames by replacing / by ∕
		142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
57		153
58	binmode STDOUT;	154	binmode STDOUT;
59	binmode STDERR;	155	binmode STDERR;
60		156
61	# read virtual server time, if available	157	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
66	}	162	}
67		163
68	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		165
74	# a special map that is always available	166	mkdir $_
75	our $LINK_MAP;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		168
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	169	our $EMERGENCY_POSITION;
		170
		171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
78		187
79	#############################################################################	188	#############################################################################
80		189
81	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
82		191
…		…
89	=item $cf::RUNTIME	198	=item $cf::RUNTIME
90		199
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	201	every server tick.
93		202
94	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		206
96	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
98		211
99	=item $cf::NOW	212	=item $cf::NOW
100		213
101	The time of the last (current) server tick.	214	The time of the last (current) server tick.
102		215
103	=item $cf::TICK	216	=item $cf::TICK
104		217
105	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
106		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
107	=item %cf::CFG	230	=item %cf::CFG
108		231
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	233	from wherever your confdir points to.
111		234
		235	=item cf::wait_for_tick, cf::wait_for_tick_begin
		236
		237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		238	returns directly I<after> the tick processing (and consequently, can only wake one process
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
		252
112	=back	253	=back
113		254
114	=cut	255	=cut
115		256
116	BEGIN {	257	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	258	sub warn (@) { LOG llevWarn , join "", @_ }
		259	sub info (@) { LOG llevInfo , join "", @_ }
		260	sub debug(@) { LOG llevDebug, join "", @_ }
		261	sub trace(@) { LOG llevTrace, join "", @_ }
		262
		263	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	264	my $msg = join "", @_;
119	utf8::encode $msg;
120		265
121	$msg .= "\n"	266	$msg .= "\n"
122	unless $msg =~ /\n$/;	267	unless $msg =~ /\n$/;
123		268
124	LOG llevError, "cfperl: $msg";	269	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	270
126	}	271	LOG llevWarn, $msg;
		272	};
		273
		274	$Coro::State::DIEHOOK = sub {
		275	return unless $^S eq 0; # "eq", not "=="
		276
		277	error Carp::longmess $_[0];
		278
		279	if (in_main) {#d#
		280	error "DIEHOOK called in main context, Coro bug?\n";#d#
		281	return;#d#
		282	}#d#
		283
		284	# kill coroutine otherwise
		285	Coro::terminate
		286	};
127		287
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	288	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	289	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	290	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	291	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	292	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		293	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	294	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		295
135	# we bless all objects into (empty) derived classes to force a method lookup	296	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	297	# within the Safe compartment.
137	for my $pkg (qw(	298	for my $pkg (qw(
138	cf::global cf::attachable	299	cf::global cf::attachable
139	cf::object cf::object::player	300	cf::object cf::object::player
140	cf::client cf::player	301	cf::client cf::player
141	cf::arch cf::living	302	cf::arch cf::living
		303	cf::map cf::mapspace
142	cf::map cf::party cf::region	304	cf::party cf::region
143	)) {	305	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	306	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	307	}
147		308
148	$Event::DIED = sub {	309	$EV::DIED = sub {
149	warn "error in event callback: @_";	310	Carp::cluck "error in event callback: @_";
150	};	311	};
151		312
152	my %ext_pkg;	313	#############################################################################
153	my @exts;
154	my @hook;
155		314
156	=head2 UTILITY FUNCTIONS	315	=head2 UTILITY FUNCTIONS
157		316
158	=over 4	317	=over 4
159		318
160	=cut	319	=item dumpval $ref
161		320
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	321	=cut
163		322
		323	sub dumpval {
		324	eval {
		325	local $SIG{__DIE__};
		326	my $d;
		327	if (1) {
		328	$d = new Data::Dumper([$_[0]], ["*var"]);
		329	$d->Terse(1);
		330	$d->Indent(2);
		331	$d->Quotekeys(0);
		332	$d->Useqq(1);
		333	#$d->Bless(...);
		334	$d->Seen($_[1]) if @_ > 1;
		335	$d = $d->Dump();
		336	}
		337	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		338	$d
		339	} || "[unable to dump $_[0]: '$@']";
		340	}
		341
164	=item $ref = cf::from_json $json	342	=item $ref = cf::decode_json $json
165		343
166	Converts a JSON string into the corresponding perl data structure.	344	Converts a JSON string into the corresponding perl data structure.
167		345
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	346	=item $json = cf::encode_json $ref
176		347
177	Converts a perl data structure into its JSON representation.	348	Converts a perl data structure into its JSON representation.
178		349
179	=cut	350	=cut
180		351
181	sub to_json($) {	352	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		353
186	=item my $guard = cf::guard { BLOCK }	354	sub encode_json($) { $json_coder->encode ($_[0]) }
		355	sub decode_json($) { $json_coder->decode ($_[0]) }
187		356
188	Run the given callback when the guard object gets destroyed (useful for	357	=item cf::post_init { BLOCK }
189	coroutine cancellations).
190		358
191	You can call C<< ->cancel >> on the guard object to stop the block from	359	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
192	being executed.	360	but I<before> the server starts ticking again.
193		361
194	=cut	362	The cdoeblock will have a single boolean argument to indicate whether this
		363	is a reload or not.
195		364
196	sub guard(&) {	365	=cut
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199		366
200	sub cf::guard::cancel {	367	sub post_init(&) {
201	${$_[0]} = sub { };	368	push @POST_INIT, shift;
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}	369	}
207		370
208	=item cf::lock_wait $string	371	=item cf::lock_wait $string
209		372
210	Wait until the given lock is available. See cf::lock_acquire.	373	Wait until the given lock is available. See cf::lock_acquire.
211		374
212	=item my $lock = cf::lock_acquire $string	375	=item my $lock = cf::lock_acquire $string
213		376
214	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
215	a 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,
216	for example when the coroutine gets canceled), the lock is automatically	379	for example when the coroutine gets canceled), the lock is automatically
217	returned.	380	returned.
218		381
		382	Locks are *not* recursive, locking from the same coro twice results in a
		383	deadlocked coro.
		384
219	Lock names should begin with a unique identifier (for example, find_map	385	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	386	uses map_find and cf::map::load uses map_load).
221		387
222	=cut	388	=item $locked = cf::lock_active $string
223		389
224	our %LOCK;	390	Return true if the lock is currently active, i.e. somebody has locked it.
		391
		392	=cut
		393
		394	our $LOCKS = new Coro::SemaphoreSet;
225		395
226	sub lock_wait($) {	396	sub lock_wait($) {
227	my ($key) = @_;	397	$LOCKS->wait ($_[0]);
228
229	# wait for lock, if any
230	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;
233	}
234	}	398	}
235		399
236	sub lock_acquire($) {	400	sub lock_acquire($) {
237	my ($key) = @_;	401	$LOCKS->guard ($_[0])
		402	}
238		403
239	# wait, to be sure we are not locked	404	sub lock_active($) {
240	lock_wait $key;	405	$LOCKS->count ($_[0]) < 1
		406	}
241		407
242	$LOCK{$key} = [];	408	sub freeze_mainloop {
		409	tick_inhibit_inc;
243		410
244	cf::guard {	411	&Guard::guard (\&tick_inhibit_dec);
245	# wake up all waiters, to be on the safe side	412	}
246	$_->ready for @{ delete $LOCK{$key} };	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($$) {
		422	my ($interval, $cb) = @_;
		423
		424	my $start = rand List::Util::min 180, $interval;
		425
		426	EV::periodic $start, $interval, 0, $cb
		427	}
		428
		429	=item cf::get_slot $time[, $priority[, $name]]
		430
		431	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		432	This call blocks and returns only when you have at least C<$time> seconds
		433	of cpu time till the next tick. The slot is only valid till the next cede.
		434
		435	The optional C<$name> can be used to identify the job to run. It might be
		436	used for statistical purposes and should identify the same time-class.
		437
		438	Useful for short background jobs.
		439
		440	=cut
		441
		442	our @SLOT_QUEUE;
		443	our $SLOT_QUEUE;
		444	our $SLOT_DECAY = 0.9;
		445
		446	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		447	$SLOT_QUEUE = Coro::async {
		448	$Coro::current->desc ("timeslot manager");
		449
		450	my $signal = new Coro::Signal;
		451	my $busy;
		452
		453	while () {
		454	next_job:
		455
		456	my $avail = cf::till_tick;
		457
		458	for (0 .. $#SLOT_QUEUE) {
		459	if ($SLOT_QUEUE[$_][0] <= $avail) {
		460	$busy = 0;
		461	my $job = splice @SLOT_QUEUE, $_, 1, ();
		462	$job->[2]->send;
		463	Coro::cede;
		464	goto next_job;
		465	} else {
		466	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		467	}
		468	}
		469
		470	if (@SLOT_QUEUE) {
		471	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		472	push @cf::WAIT_FOR_TICK, $signal;
		473	$signal->wait;
		474	} else {
		475	$busy = 0;
		476	Coro::schedule;
		477	}
247	}	478	}
		479	};
		480
		481	sub get_slot($;$$) {
		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	$sig->wait;
248	}	494	}
249		495
250	=item cf::async { BLOCK }	496	=item cf::async { BLOCK }
251		497
252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	498	Currently the same as Coro::async_pool, meaning you cannot use
253	error instead of exiting the server in case of a problem.	499	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		500	thing you are allowed to do is call C<prio> on it.
254		501
255	=cut	502	=cut
256		503
257	sub async(&) {	504	BEGIN { *async = \&Coro::async_pool }
258	my ($cb) = @_;
259
260	Coro::async {
261	eval { $cb->() };
262	warn $@ if $@;
263	}
264	}
265		505
266	=item cf::sync_job { BLOCK }	506	=item cf::sync_job { BLOCK }
267		507
268	The design of crossfire+ requires that the main coro ($Coro::main) is	508	The design of Deliantra requires that the main coroutine ($Coro::main)
269	always able to handle events or runnable, as crossfire+ is only partly	509	is always able to handle events or runnable, as Deliantra is only
270	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	510	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		511	acceptable.
271		512
272	If it must be done, put the blocking parts into C<sync_job>. This will run	513	If it must be done, put the blocking parts into C<sync_job>. This will run
273	the given BLOCK in another coroutine while waiting for the result. The	514	the given BLOCK in another coroutine while waiting for the result. The
274	server will be frozen during this time, so the block should either finish	515	server will be frozen during this time, so the block should either finish
275	fast or be very important.	516	fast or be very important.
…		…
278		519
279	sub sync_job(&) {	520	sub sync_job(&) {
280	my ($job) = @_;	521	my ($job) = @_;
281		522
282	if ($Coro::current == $Coro::main) {	523	if ($Coro::current == $Coro::main) {
		524	my $time = AE::time;
		525
283	# this is the main coro, too bad, we have to block	526	# this is the main coro, too bad, we have to block
284	# till the operation succeeds, freezing the server :/	527	# till the operation succeeds, freezing the server :/
285		528
286	# TODO: use suspend/resume instead	529	LOG llevError, Carp::longmess "sync job";#d#
287	# (but this is cancel-safe)	530
288	local $FREEZE = 1;	531	my $freeze_guard = freeze_mainloop;
289		532
290	my $busy = 1;	533	my $busy = 1;
291	my @res;	534	my @res;
292		535
293	(Coro::async {	536	(async {
		537	$Coro::current->desc ("sync job coro");
294	@res = eval { $job->() };	538	@res = eval { $job->() };
295	warn $@ if $@;	539	error $@ if $@;
296	undef $busy;	540	undef $busy;
297	})->prio (Coro::PRIO_MAX);	541	})->prio (Coro::PRIO_MAX);
298		542
299	while ($busy) {	543	while ($busy) {
		544	if (Coro::nready) {
300	Coro::cede_notself;	545	Coro::cede_notself;
301	Event::one_event unless Coro::nready;	546	} else {
		547	EV::loop EV::LOOP_ONESHOT;
302	}	548	}
		549	}
		550
		551	my $time = AE::time - $time;
		552
		553	$TICK_START += $time; # do not account sync jobs to server load
303		554
304	wantarray ? @res : $res[0]	555	wantarray ? @res : $res[0]
305	} else {	556	} else {
306	# we are in another coroutine, how wonderful, everything just works	557	# we are in another coroutine, how wonderful, everything just works
307		558
308	$job->()	559	$job->()
309	}	560	}
310	}	561	}
311		562
312	=item $coro = cf::coro { BLOCK }	563	=item $coro = cf::async_ext { BLOCK }
313		564
314	Creates and returns a new coro. This coro is automcatially being canceled	565	Like async, but this coro is automatically being canceled when the
315	when the extension calling this is being unloaded.	566	extension calling this is being unloaded.
316		567
317	=cut	568	=cut
318		569
319	sub coro(&) {	570	sub async_ext(&) {
320	my $cb = shift;	571	my $cb = shift;
321		572
322	my $coro = &cf::async ($cb);	573	my $coro = &Coro::async ($cb);
323		574
324	$coro->on_destroy (sub {	575	$coro->on_destroy (sub {
325	delete $EXT_CORO{$coro+0};	576	delete $EXT_CORO{$coro+0};
326	});	577	});
327	$EXT_CORO{$coro+0} = $coro;	578	$EXT_CORO{$coro+0} = $coro;
328		579
329	$coro	580	$coro
330	}	581	}
331		582
332	sub write_runtime {	583	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		584
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	585	Executes the given code block with the given arguments in a seperate
336	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.
337		589
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	590	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		591
342	aio_fsync $fh	592	sub fork_call(&@) {
343	and return;	593	my ($cb, @args) = @_;
344		594
345	close $fh	595	# we seemingly have to make a local copy of the whole thing,
346	or return;	596	# otherwise perl prematurely frees the stuff :/
		597	# TODO: investigate and fix (likely this will be rather laborious)
347		598
348	aio_rename "$runtime~", $runtime	599	my @res = Coro::Util::fork_eval {
349	and return;	600	reset_signals;
		601	&$cb
		602	}, @args;
350		603
		604	wantarray ? @res : $res[-1]
		605	}
		606
		607	sub objinfo {
351	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	my ($name) = @_;
		663	my $db = BDB::db_create $DB_ENV;
		664
		665	eval {
		666	$db->set_flags (BDB::CHKSUM);
		667
		668	utf8::encode $name;
		669	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		670	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		671	cf::cleanup "db_open(db): $!" if $!;
		672	};
		673	cf::cleanup "db_open(db): $@" if $@;
		674
		675	$db
		676	}
		677
		678	our $DB;
		679
		680	sub db_init {
		681	cf::sync_job {
		682	$DB ||= db_table "db";
		683	};
		684	}
		685
		686	sub db_get($$) {
		687	my $key = "$_[0]/$_[1]";
		688
		689	cf::sync_job {
		690	BDB::db_get $DB, undef, $key, my $data;
		691
		692	$! ? ()
		693	: $data
		694	}
		695	}
		696
		697	sub db_put($$$) {
		698	BDB::dbreq_pri 4;
		699	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		700	}
		701
		702	=item cf::cache $id => [$paths...], $processversion => $process
		703
		704	Generic caching function that returns the value of the resource $id,
		705	caching and regenerating as required.
		706
		707	This function can block.
		708
		709	=cut
		710
		711	sub cache {
		712	my ($id, $src, $processversion, $process) = @_;
		713
		714	my $meta =
		715	join "\x00",
		716	$processversion,
		717	map {
		718	aio_stat $_
		719	and Carp::croak "$_: $!";
		720
		721	($_, (stat _)[7,9])
		722	} @$src;
		723
		724	my $dbmeta = db_get cache => "$id/meta";
		725	if ($dbmeta ne $meta) {
		726	# changed, we may need to process
		727
		728	my @data;
		729	my $md5;
		730
		731	for (0 .. $#$src) {
		732	0 <= aio_load $src->[$_], $data[$_]
		733	or Carp::croak "$src->[$_]: $!";
		734	}
		735
		736	# if processing is expensive, check
		737	# checksum first
		738	if (1) {
		739	$md5 =
		740	join "\x00",
		741	$processversion,
		742	map {
		743	cf::cede_to_tick;
		744	($src->[$_], Digest::MD5::md5_hex $data[$_])
		745	} 0.. $#$src;
		746
		747
		748	my $dbmd5 = db_get cache => "$id/md5";
		749	if ($dbmd5 eq $md5) {
		750	db_put cache => "$id/meta", $meta;
		751
		752	return db_get cache => "$id/data";
		753	}
		754	}
		755
		756	my $t1 = Time::HiRes::time;
		757	my $data = $process->(\@data);
		758	my $t2 = Time::HiRes::time;
		759
		760	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		761
		762	db_put cache => "$id/data", $data;
		763	db_put cache => "$id/md5" , $md5;
		764	db_put cache => "$id/meta", $meta;
		765
		766	return $data;
		767	}
		768
		769	db_get cache => "$id/data"
		770	}
		771
		772	=item cf::datalog type => key => value, ...
		773
		774	Log a datalog packet of the given type with the given key-value pairs.
		775
		776	=cut
		777
		778	sub datalog($@) {
		779	my ($type, %kv) = @_;
		780	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
352	}	781	}
353		782
354	=back	783	=back
355		784
356	=cut	785	=cut
357		786
358	#############################################################################	787	#############################################################################
359		788
360	package cf::path;
361
362	sub new {
363	my ($class, $path, $base) = @_;
364
365	$path = $path->as_string if ref $path;
366
367	my $self = bless { }, $class;
368
369	# {... are special paths that are not touched
370	# ?xxx/... are special absolute paths
371	# ?random/... random maps
372	# /! non-realised random map exit
373	# /... normal maps
374	# ~/... per-player maps without a specific player (DO NOT USE)
375	# ~user/... per-player map of a specific user
376
377	if ($path =~ /^{/) {
378	# fine as it is
379	} elsif ($path =~ s{^\?random/}{}) {
380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381	$self->{random} = cf::from_json $data;
382	} else {
383	if ($path =~ s{^~([^/]+)?}{}) {
384	$self->{user_rel} = 1;
385
386	if (defined $1) {
387	$self->{user} = $1;
388	} elsif ($base =~ m{^~([^/]+)/}) {
389	$self->{user} = $1;
390	} else {
391	warn "cannot resolve user-relative path without user <$path,$base>\n";
392	}
393	} elsif ($path =~ /^\//) {
394	# already absolute
395	} else {
396	$base =~ s{[^/]+/?$}{};
397	return $class->new ("$base/$path");
398	}
399
400	for ($path) {
401	redo if s{/\.?/}{/};
402	redo if s{/[^/]+/\.\./}{/};
403	}
404	}
405
406	$self->{path} = $path;
407
408	$self
409	}
410
411	# the name / primary key / in-game path
412	sub as_string {
413	my ($self) = @_;
414
415	$self->{user_rel} ? "~$self->{user}$self->{path}"
416	: $self->{random} ? "?random/$self->{path}"
417	: $self->{path}
418	}
419
420	# the displayed name, this is a one way mapping
421	sub visible_name {
422	my ($self) = @_;
423
424	# if (my $rmp = $self->{random}) {
425	# # todo: be more intelligent about this
426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427	# } else {
428	$self->as_string
429	# }
430	}
431
432	# escape the /'s in the path
433	sub _escaped_path {
434	# ∕ is U+2215
435	(my $path = $_[0]{path}) =~ s/\//∕/g;
436	$path
437	}
438
439	# the original (read-only) location
440	sub load_path {
441	my ($self) = @_;
442
443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444	}
445
446	# the temporary/swap location
447	sub save_path {
448	my ($self) = @_;
449
450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453	}
454
455	# the unique path, might be eq to save_path
456	sub uniq_path {
457	my ($self) = @_;
458
459	$self->{user_rel} || $self->{random}
460	? undef
461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462	}
463
464	# return random map parameters, or undef
465	sub random_map_params {
466	my ($self) = @_;
467
468	$self->{random}
469	}
470
471	# this is somewhat ugly, but style maps do need special treatment
472	sub is_style_map {
473	$_[0]{path} =~ m{^/styles/}
474	}
475
476	package cf;
477
478	#############################################################################
479
480	=head2 ATTACHABLE OBJECTS	789	=head2 ATTACHABLE OBJECTS
481		790
482	Many objects in crossfire are so-called attachable objects. That means you can	791	Many objects in deliantra are so-called attachable objects. That means you can
483	attach callbacks/event handlers (a collection of which is called an "attachment")	792	attach callbacks/event handlers (a collection of which is called an "attachment")
484	to it. All such attachable objects support the following methods.	793	to it. All such attachable objects support the following methods.
485		794
486	In the following description, CLASS can be any of C<global>, C<object>	795	In the following description, CLASS can be any of C<global>, C<object>
487	C<player>, C<client> or C<map> (i.e. the attachable objects in	796	C<player>, C<client> or C<map> (i.e. the attachable objects in
488	crossfire+).	797	Deliantra).
489		798
490	=over 4	799	=over 4
491		800
492	=item $attachable->attach ($attachment, key => $value...)	801	=item $attachable->attach ($attachment, key => $value...)
493		802
…		…
537	=item cf::CLASS::attachment $name, ...	846	=item cf::CLASS::attachment $name, ...
538		847
539	Register an attachment by C<$name> through which attachable objects of the	848	Register an attachment by C<$name> through which attachable objects of the
540	given CLASS can refer to this attachment.	849	given CLASS can refer to this attachment.
541		850
542	Some classes such as crossfire maps and objects can specify attachments	851	Some classes such as deliantra maps and objects can specify attachments
543	that are attached at load/instantiate time, thus the need for a name.	852	that are attached at load/instantiate time, thus the need for a name.
544		853
545	These calls expect any number of the following handler/hook descriptions:	854	These calls expect any number of the following handler/hook descriptions:
546		855
547	=over 4	856	=over 4
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	916	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	917	our @CB_MAP = ();
609		918
610	my %attachment;	919	my %attachment;
611		920
		921	sub cf::attachable::thawer_merge {
		922	# simply override everything except _meta
		923	local $_[0]{_meta};
		924	%{$_[0]} = %{$_[1]};
		925	}
		926
612	sub _attach_cb($$$$) {	927	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	928	my ($registry, $event, $prio, $cb) = @_;
614		929
615	use sort 'stable';	930	use sort 'stable';
616		931
…		…
650	$registry = $CB_TYPE[$object_type] ||= [];	965	$registry = $CB_TYPE[$object_type] ||= [];
651		966
652	} elsif ($type eq "subtype") {	967	} elsif ($type eq "subtype") {
653	defined $object_type or Carp::croak "subtype specified without type";	968	defined $object_type or Carp::croak "subtype specified without type";
654	my $object_subtype = shift @arg;	969	my $object_subtype = shift @arg;
655	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	970	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
656		971
657	} elsif ($type eq "package") {	972	} elsif ($type eq "package") {
658	my $pkg = shift @arg;	973	my $pkg = shift @arg;
659		974
660	while (my ($name, $id) = each %cb_id) {	975	while (my ($name, $id) = each %cb_id) {
…		…
665		980
666	} elsif (exists $cb_id{$type}) {	981	} elsif (exists $cb_id{$type}) {
667	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	982	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
668		983
669	} elsif (ref $type) {	984	} elsif (ref $type) {
670	warn "attaching objects not supported, ignoring.\n";	985	error "attaching objects not supported, ignoring.\n";
671		986
672	} else {	987	} else {
673	shift @arg;	988	shift @arg;
674	warn "attach argument '$type' not supported, ignoring.\n";	989	error "attach argument '$type' not supported, ignoring.\n";
675	}	990	}
676	}	991	}
677	}	992	}
678		993
679	sub _object_attach {	994	sub _object_attach {
…		…
689	_attach $registry, $klass, @attach;	1004	_attach $registry, $klass, @attach;
690	}	1005	}
691		1006
692	$obj->{$name} = \%arg;	1007	$obj->{$name} = \%arg;
693	} else {	1008	} else {
694	warn "object uses attachment '$name' that is not available, postponing.\n";	1009	info "object uses attachment '$name' which is not available, postponing.\n";
695	}	1010	}
696		1011
697	$obj->{_attachment}{$name} = undef;	1012	$obj->{_attachment}{$name} = undef;
698	}	1013	}
699		1014
…		…
701	if (ref $_[0]) {	1016	if (ref $_[0]) {
702	_object_attach @_;	1017	_object_attach @_;
703	} else {	1018	} else {
704	_attach shift->_attach_registry, @_;	1019	_attach shift->_attach_registry, @_;
705	}	1020	}
		1021	_recalc_want;
706	};	1022	};
707		1023
708	# all those should be optimised	1024	# all those should be optimised
709	sub cf::attachable::detach {	1025	sub cf::attachable::detach {
710	my ($obj, $name) = @_;	1026	my ($obj, $name) = @_;
…		…
713	delete $obj->{_attachment}{$name};	1029	delete $obj->{_attachment}{$name};
714	reattach ($obj);	1030	reattach ($obj);
715	} else {	1031	} else {
716	Carp::croak "cannot, currently, detach class attachments";	1032	Carp::croak "cannot, currently, detach class attachments";
717	}	1033	}
		1034	_recalc_want;
718	};	1035	};
719		1036
720	sub cf::attachable::attached {	1037	sub cf::attachable::attached {
721	my ($obj, $name) = @_;	1038	my ($obj, $name) = @_;
722		1039
…		…
737	";	1054	";
738	die if $@;	1055	die if $@;
739	}	1056	}
740		1057
741	our $override;	1058	our $override;
742	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1059	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
743		1060
744	sub override {	1061	sub override {
745	$override = 1;	1062	$override = 1;
746	@invoke_results = ();	1063	@INVOKE_RESULTS = (@_);
747	}	1064	}
748		1065
749	sub do_invoke {	1066	sub do_invoke {
750	my $event = shift;	1067	my $event = shift;
751	my $callbacks = shift;	1068	my $callbacks = shift;
752		1069
753	@invoke_results = ();	1070	@INVOKE_RESULTS = ();
754		1071
755	local $override;	1072	local $override;
756		1073
757	for (@$callbacks) {	1074	for (@$callbacks) {
758	eval { &{$_->[1]} };	1075	eval { &{$_->[1]} };
759		1076
760	if ($@) {	1077	if ($@) {
761	warn "$@";
762	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1078	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
763	override;	1079	override;
764	}	1080	}
765		1081
766	return 1 if $override;	1082	return 1 if $override;
767	}	1083	}
768		1084
769	0	1085	0
770	}	1086	}
771		1087
772	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1088	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
773		1089
774	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1090	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
775		1091
776	Generate an object-specific event with the given arguments.	1092	Generate an object-specific event with the given arguments.
777		1093
778	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1094	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
779	removed in future versions), and there is no public API to access override	1095	removed in future versions), and there is no public API to access override
780	results (if you must, access C<@cf::invoke_results> directly).	1096	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
781		1097
782	=back	1098	=back
783		1099
784	=cut	1100	=cut
785		1101
786	#############################################################################	1102	#############################################################################
787	# object support	1103	# object support
		1104
		1105	sub _object_equal($$);
		1106	sub _object_equal($$) {
		1107	my ($a, $b) = @_;
		1108
		1109	return 0 unless (ref $a) eq (ref $b);
		1110
		1111	if ("HASH" eq ref $a) {
		1112	my @ka = keys %$a;
		1113	my @kb = keys %$b;
		1114
		1115	return 0 if @ka != @kb;
		1116
		1117	for (0 .. $#ka) {
		1118	return 0 unless $ka[$_] eq $kb[$_];
		1119	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1120	}
		1121
		1122	} elsif ("ARRAY" eq ref $a) {
		1123
		1124	return 0 if @$a != @$b;
		1125
		1126	for (0 .. $#$a) {
		1127	return 0 unless _object_equal $a->[$_], $b->[$_];
		1128	}
		1129
		1130	} elsif ($a ne $b) {
		1131	return 0;
		1132	}
		1133
		1134	1
		1135	}
		1136
		1137	our $SLOW_MERGES;#d#
		1138	sub _can_merge {
		1139	my ($ob1, $ob2) = @_;
		1140
		1141	++$SLOW_MERGES;#d#
		1142
		1143	# we do the slow way here
		1144	return _object_equal $ob1, $ob2
		1145	}
788		1146
789	sub reattach {	1147	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	1148	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	1149	my ($obj) = @_;
		1150
		1151	# no longer needed after getting rid of delete_package?
		1152	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		1153
793	my $registry = $obj->registry;	1154	my $registry = $obj->registry;
794		1155
795	@$registry = ();	1156	@$registry = ();
796		1157
…		…
801	for (@$attach) {	1162	for (@$attach) {
802	my ($klass, @attach) = @$_;	1163	my ($klass, @attach) = @$_;
803	_attach $registry, $klass, @attach;	1164	_attach $registry, $klass, @attach;
804	}	1165	}
805	} else {	1166	} else {
806	warn "object uses attachment '$name' that is not available, postponing.\n";	1167	info "object uses attachment '$name' that is not available, postponing.\n";
807	}	1168	}
808	}	1169	}
809	}	1170	}
810		1171
811	cf::attachable->attach (	1172	cf::attachable->attach (
812	prio => -1000000,	1173	prio => -1000000,
813	on_instantiate => sub {	1174	on_instantiate => sub {
814	my ($obj, $data) = @_;	1175	my ($obj, $data) = @_;
815		1176
816	$data = from_json $data;	1177	$data = decode_json $data;
817		1178
818	for (@$data) {	1179	for (@$data) {
819	my ($name, $args) = @$_;	1180	my ($name, $args) = @$_;
820		1181
821	$obj->attach ($name, %{$args || {} });	1182	$obj->attach ($name, %{$args || {} });
…		…
837	sub object_freezer_save {	1198	sub object_freezer_save {
838	my ($filename, $rdata, $objs) = @_;	1199	my ($filename, $rdata, $objs) = @_;
839		1200
840	sync_job {	1201	sync_job {
841	if (length $$rdata) {	1202	if (length $$rdata) {
		1203	utf8::decode (my $decname = $filename);
842	warn sprintf "saving %s (%d,%d)\n",	1204	trace sprintf "saving %s (%d,%d)\n",
843	$filename, length $$rdata, scalar @$objs;	1205	$decname, length $$rdata, scalar @$objs
		1206	if $VERBOSE_IO;
844		1207
845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1208	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846	chmod SAVE_MODE, $fh;	1209	aio_chmod $fh, SAVE_MODE;
847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1210	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1211	if ($cf::USE_FSYNC) {
		1212	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
848	aio_fsync $fh;	1213	aio_fsync $fh;
		1214	}
849	close $fh;	1215	aio_close $fh;
850		1216
851	if (@$objs) {	1217	if (@$objs) {
852	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1218	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
853	chmod SAVE_MODE, $fh;	1219	aio_chmod $fh, SAVE_MODE;
854	my $data = Storable::nfreeze { version => 1, objs => $objs };	1220	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
855	aio_write $fh, 0, (length $data), $data, 0;	1221	aio_write $fh, 0, (length $data), $data, 0;
		1222	if ($cf::USE_FSYNC) {
		1223	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
856	aio_fsync $fh;	1224	aio_fsync $fh;
		1225	}
857	close $fh;	1226	aio_close $fh;
858	aio_rename "$filename.pst~", "$filename.pst";	1227	aio_rename "$filename.pst~", "$filename.pst";
859	}	1228	}
860	} else {	1229	} else {
861	aio_unlink "$filename.pst";	1230	aio_unlink "$filename.pst";
862	}	1231	}
863		1232
864	aio_rename "$filename~", $filename;	1233	aio_rename "$filename~", $filename;
		1234
		1235	$filename =~ s%/[^/]+$%%;
		1236	aio_pathsync $filename if $cf::USE_FSYNC;
865	} else {	1237	} else {
866	warn "FATAL: $filename~: $!\n";	1238	error "unable to save objects: $filename~: $!\n";
867	}	1239	}
868	} else {	1240	} else {
869	aio_unlink $filename;	1241	aio_unlink $filename;
870	aio_unlink "$filename.pst";	1242	aio_unlink "$filename.pst";
871	}	1243	}
872	}	1244	};
873	}	1245	}
874		1246
875	sub object_freezer_as_string {	1247	sub object_freezer_as_string {
876	my ($rdata, $objs) = @_;	1248	my ($rdata, $objs) = @_;
877		1249
…		…
889	or return;	1261	or return;
890		1262
891	unless (aio_stat "$filename.pst") {	1263	unless (aio_stat "$filename.pst") {
892	(aio_load "$filename.pst", $av) >= 0	1264	(aio_load "$filename.pst", $av) >= 0
893	or return;	1265	or return;
		1266
894	$av = eval { (Storable::thaw $av)->{objs} };	1267	my $st = eval { Coro::Storable::thaw $av };
		1268	$av = $st->{objs};
895	}	1269	}
896		1270
		1271	utf8::decode (my $decname = $filename);
897	warn sprintf "loading %s (%d)\n",	1272	trace sprintf "loading %s (%d,%d)\n",
898	$filename, length $data, scalar @{$av || []};#d#	1273	$decname, length $data, scalar @{$av || []}
		1274	if $VERBOSE_IO;
		1275
899	return ($data, $av);	1276	($data, $av)
900	}	1277	}
		1278
		1279	=head2 COMMAND CALLBACKS
		1280
		1281	=over 4
		1282
		1283	=cut
901		1284
902	#############################################################################	1285	#############################################################################
903	# command handling &c	1286	# command handling &c
904		1287
905	=item cf::register_command $name => \&callback($ob,$args);	1288	=item cf::register_command $name => \&callback($ob,$args);
…		…
918	push @{ $COMMAND{$name} }, [$caller, $cb];	1301	push @{ $COMMAND{$name} }, [$caller, $cb];
919	}	1302	}
920		1303
921	=item cf::register_extcmd $name => \&callback($pl,$packet);	1304	=item cf::register_extcmd $name => \&callback($pl,$packet);
922		1305
923	Register a callbackf ro execution when the client sends an extcmd packet.	1306	Register a callback for execution when the client sends an (synchronous)
		1307	extcmd packet. Ext commands will be processed in the order they are
		1308	received by the server, like other user commands. The first argument is
		1309	the logged-in player. Ext commands can only be processed after a player
		1310	has logged in successfully.
924		1311
925	If the callback returns something, it is sent back as if reply was being	1312	If the callback returns something, it is sent back as if reply was being
926	called.	1313	called.
927		1314
		1315	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1316
		1317	Register a callback for execution when the client sends an (asynchronous)
		1318	exticmd packet. Exti commands are processed by the server as soon as they
		1319	are received, i.e. out of order w.r.t. other commands. The first argument
		1320	is a client socket. Exti commands can be received anytime, even before
		1321	log-in.
		1322
		1323	If the callback returns something, it is sent back as if reply was being
		1324	called.
		1325
928	=cut	1326	=cut
929		1327
930	sub register_extcmd {	1328	sub register_extcmd {
931	my ($name, $cb) = @_;	1329	my ($name, $cb) = @_;
932		1330
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	1331	$EXTCMD{$name} = $cb;
937	}	1332	}
		1333
		1334	sub register_exticmd {
		1335	my ($name, $cb) = @_;
		1336
		1337	$EXTICMD{$name} = $cb;
		1338	}
		1339
		1340	use File::Glob ();
938		1341
939	cf::player->attach (	1342	cf::player->attach (
940	on_command => sub {	1343	on_unknown_command => sub {
941	my ($pl, $name, $params) = @_;	1344	my ($pl, $name, $params) = @_;
942		1345
943	my $cb = $COMMAND{$name}	1346	my $cb = $COMMAND{$name}
944	or return;	1347	or return;
945		1348
…		…
950	cf::override;	1353	cf::override;
951	},	1354	},
952	on_extcmd => sub {	1355	on_extcmd => sub {
953	my ($pl, $buf) = @_;	1356	my ($pl, $buf) = @_;
954		1357
955	my $msg = eval { from_json $buf };	1358	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
956		1359
957	if (ref $msg) {	1360	if (ref $msg) {
		1361	my ($type, $reply, @payload) =
		1362	"ARRAY" eq ref $msg
		1363	? @$msg
		1364	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1365
		1366	my @reply;
		1367
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1368	if (my $cb = $EXTCMD{$type}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	1369	@reply = $cb->($pl, @payload);
960	$pl->ext_reply ($msg->{msgid}, %reply);
961	}
962	}	1370	}
		1371
		1372	$pl->ext_reply ($reply, @reply)
		1373	if $reply;
		1374
963	} else {	1375	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1376	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
965	}	1377	}
966		1378
967	cf::override;	1379	cf::override;
968	},	1380	},
969	);	1381	);
970		1382
971	sub register {	1383	# "readahead" all extensions
972	my ($base, $pkg) = @_;
973
974	#TODO
975	}
976
977	sub load_extension {	1384	sub cache_extensions {
978	my ($path) = @_;	1385	my $grp = IO::AIO::aio_group;
979		1386
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1387	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
981	my $base = $1;	1388	for (grep /\.ext$/, @{$_[0]}) {
982	my $pkg = $1;	1389	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
983	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";
985
986	warn "loading '$path' into '$pkg'\n";
987
988	open my $fh, "<:utf8", $path
989	or die "$path: $!";
990
991	my $source =
992	"package $pkg; use strict; use utf8;\n"
993	. "#line 1 \"$path\"\n{\n"
994	. (do { local $/; <$fh> })
995	. "\n};\n1";
996
997	eval $source
998	or die $@ ? "$path: $@\n"
999	: "extension disabled.\n";
1000
1001	push @exts, $pkg;
1002	$ext_pkg{$base} = $pkg;
1003
1004	# no strict 'refs';
1005	# @{"$pkg\::ISA"} = ext::;
1006
1007	register $base, $pkg;
1008	}
1009
1010	sub unload_extension {
1011	my ($pkg) = @_;
1012
1013	warn "removing extension $pkg\n";
1014
1015	# remove hooks
1016	#TODO
1017	# for my $idx (0 .. $#PLUGIN_EVENT) {
1018	# delete $hook[$idx]{$pkg};
1019	# }
1020
1021	# remove commands
1022	for my $name (keys %COMMAND) {
1023	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025	if (@cb) {
1026	$COMMAND{$name} = \@cb;
1027	} else {
1028	delete $COMMAND{$name};
1029	}	1390	}
1030	}	1391	};
1031		1392
1032	# remove extcmds	1393	$grp
1033	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034	delete $EXTCMD{$name};
1035	}
1036
1037	if (my $cb = $pkg->can ("unload")) {
1038	eval {
1039	$cb->($pkg);
1040	1
1041	} or warn "$pkg unloaded, but with errors: $@";
1042	}
1043
1044	Symbol::delete_package $pkg;
1045	}	1394	}
1046		1395
1047	sub load_extensions {	1396	sub load_extensions {
		1397	info "loading extensions...";
		1398
		1399	cf::sync_job {
		1400	my %todo;
		1401
1048	for my $ext (<$LIBDIR/*.ext>) {	1402	for my $path (<$LIBDIR/*.ext>) {
1049	next unless -r $ext;	1403	next unless -r $path;
1050	eval {	1404
1051	load_extension $ext;	1405	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1406	my $base = $1;
		1407	my $pkg = $1;
		1408	$pkg =~ s/[^[:word:]]/_/g;
		1409	$pkg = "ext::$pkg";
		1410
		1411	open my $fh, "<:utf8", $path
		1412	or die "$path: $!";
		1413
		1414	my $source = do { local $/; <$fh> };
		1415
		1416	my %ext = (
		1417	path => $path,
		1418	base => $base,
		1419	pkg => $pkg,
		1420	);
		1421
		1422	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1423	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1424
		1425	$ext{source} =
		1426	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1427	. "#line 1 \"$path\"\n{\n"
		1428	. $source
		1429	. "\n};\n1";
		1430
		1431	$todo{$base} = \%ext;
		1432	}
		1433
		1434	my $pass = 0;
		1435	my %done;
		1436	while (%todo) {
		1437	my $progress;
		1438
		1439	++$pass;
		1440
		1441	ext:
		1442	while (my ($k, $v) = each %todo) {
		1443	for (split /,\s*/, $v->{meta}{depends}) {
		1444	next ext
		1445	unless exists $done{$_};
		1446	}
		1447
		1448	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1449
		1450	my $active = eval $v->{source};
		1451
		1452	if (length $@) {
		1453	error "$v->{path}: $@\n";
		1454
		1455	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1456	if exists $v->{meta}{mandatory};
		1457
		1458	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1459	delete $todo{$k};
		1460	} else {
		1461	$done{$k} = delete $todo{$k};
		1462	push @EXTS, $v->{pkg};
		1463	$progress = 1;
		1464
		1465	info "$v->{base}: extension inactive.\n"
		1466	unless $active;
		1467	}
1052	1	1468	}
1053	} or warn "$ext not loaded: $@";	1469
		1470	unless ($progress) {
		1471	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1472
		1473	while (my ($k, $v) = each %todo) {
		1474	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1475	if exists $v->{meta}{mandatory};
		1476	}
		1477	}
		1478	}
1054	}	1479	};
1055	}	1480	}
1056		1481
1057	#############################################################################	1482	#############################################################################
1058	# load/save/clean perl data associated with a map
1059		1483
1060	*cf::mapsupport::on_clean = sub {	1484	=back
		1485
		1486	=head2 CORE EXTENSIONS
		1487
		1488	Functions and methods that extend core deliantra objects.
		1489
		1490	=cut
		1491
		1492	package cf::player;
		1493
		1494	use Coro::AIO;
		1495
		1496	=head3 cf::player
		1497
		1498	=over 4
		1499
		1500	=item cf::player::num_playing
		1501
		1502	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1503
		1504	=cut
		1505
		1506	sub num_playing {
		1507	scalar grep
		1508	$_->ob->map
		1509	&& !$_->hidden
		1510	&& !$_->ob->flag (cf::FLAG_WIZ),
		1511	cf::player::list
		1512	}
		1513
		1514	=item cf::player::find $login
		1515
		1516	Returns the given player object, loading it if necessary (might block).
		1517
		1518	=cut
		1519
		1520	sub playerdir($) {
		1521	"$PLAYERDIR/"
		1522	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1523	}
		1524
		1525	sub path($) {
		1526	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1527
		1528	(playerdir $login) . "/playerdata"
		1529	}
		1530
		1531	sub find_active($) {
		1532	$cf::PLAYER{$_[0]}
		1533	and $cf::PLAYER{$_[0]}->active
		1534	and $cf::PLAYER{$_[0]}
		1535	}
		1536
		1537	sub exists($) {
1061	my ($map) = @_;	1538	my ($login) = @_;
1062		1539
1063	my $path = $map->tmpname;	1540	$cf::PLAYER{$login}
1064	defined $path or return;	1541	or !aio_stat path $login
1065
1066	unlink "$path.pst";
1067	};
1068
1069	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071	#############################################################################
1072	# load/save perl data associated with player->ob objects
1073
1074	sub all_objects(@) {
1075	@_, map all_objects ($_->inv), @_
1076	}	1542	}
1077		1543
1078	# TODO: compatibility cruft, remove when no longer needed	1544	sub find($) {
		1545	return $cf::PLAYER{$_[0]} || do {
		1546	my $login = $_[0];
		1547
		1548	my $guard = cf::lock_acquire "user_find:$login";
		1549
		1550	$cf::PLAYER{$_[0]} || do {
		1551	# rename old playerfiles to new ones
		1552	#TODO: remove when no longer required
		1553	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1554	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1555	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1556	aio_unlink +(playerdir $login) . "/$login.pl";
		1557
		1558	my $f = new_from_file cf::object::thawer path $login
		1559	or return;
		1560
		1561	my $pl = cf::player::load_pl $f
		1562	or return;
		1563
		1564	local $cf::PLAYER_LOADING{$login} = $pl;
		1565	$f->resolve_delayed_derefs;
		1566	$cf::PLAYER{$login} = $pl
		1567	}
		1568	}
		1569	}
		1570
1079	cf::player->attach (	1571	cf::player->attach (
1080	on_load => sub {	1572	on_load => sub {
1081	my ($pl, $path) = @_;	1573	my ($pl, $path) = @_;
1082		1574
1083	for my $o (all_objects $pl->ob) {	1575	# restore slots saved in save, below
1084	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1576	my $slots = delete $pl->{_slots};
1085	$o->set_ob_key_value ("_perl_data");
1086		1577
1087	%$o = %{ Storable::thaw pack "H*", $value };	1578	$pl->ob->current_weapon ($slots->[0]);
1088	}	1579	$pl->combat_ob ($slots->[1]);
1089	}	1580	$pl->ranged_ob ($slots->[2]);
1090	},	1581	},
1091	);	1582	);
1092		1583
1093	#############################################################################	1584	sub save($) {
		1585	my ($pl) = @_;
1094		1586
1095	=head2 CORE EXTENSIONS	1587	return if $pl->{deny_save};
1096		1588
1097	Functions and methods that extend core crossfire objects.	1589	my $path = path $pl;
		1590	my $guard = cf::lock_acquire "user_save:$path";
1098		1591
1099	=head3 cf::player	1592	return if $pl->{deny_save};
		1593
		1594	aio_mkdir playerdir $pl, 0770;
		1595	$pl->{last_save} = $cf::RUNTIME;
		1596
		1597	cf::get_slot 0.01;
		1598
		1599	# save slots, to be restored later
		1600	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1601
		1602	$pl->save_pl ($path);
		1603	cf::cede_to_tick;
		1604	}
		1605
		1606	sub new($) {
		1607	my ($login) = @_;
		1608
		1609	my $self = create;
		1610
		1611	$self->ob->name ($login);
		1612	$self->{deny_save} = 1;
		1613
		1614	$cf::PLAYER{$login} = $self;
		1615
		1616	$self
		1617	}
		1618
		1619	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1620
		1621	=cut
		1622
		1623	sub send_msg {
		1624	my $ns = shift->ns
		1625	or return;
		1626	$ns->send_msg (@_);
		1627	}
		1628
		1629	=item $pl->quit_character
		1630
		1631	Nukes the player without looking back. If logged in, the connection will
		1632	be destroyed. May block for a long time.
		1633
		1634	=cut
		1635
		1636	sub quit_character {
		1637	my ($pl) = @_;
		1638
		1639	my $name = $pl->ob->name;
		1640
		1641	$pl->{deny_save} = 1;
		1642	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1643
		1644	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1645	$pl->deactivate;
		1646	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1647	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1648	$pl->ns->destroy if $pl->ns;
		1649
		1650	my $path = playerdir $pl;
		1651	my $temp = "$path~$cf::RUNTIME~deleting~";
		1652	aio_rename $path, $temp;
		1653	delete $cf::PLAYER{$pl->ob->name};
		1654	$pl->destroy;
		1655
		1656	my $prefix = qr<^~\Q$name\E/>;
		1657
		1658	# nuke player maps
		1659	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1660
		1661	IO::AIO::aio_rmtree $temp;
		1662	}
		1663
		1664	=item $pl->kick
		1665
		1666	Kicks a player out of the game. This destroys the connection.
		1667
		1668	=cut
		1669
		1670	sub kick {
		1671	my ($pl, $kicker) = @_;
		1672
		1673	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1674	$pl->killer ("kicked");
		1675	$pl->ns->destroy;
		1676	}
		1677
		1678	=item cf::player::list_logins
		1679
		1680	Returns am arrayref of all valid playernames in the system, can take a
		1681	while and may block, so not sync_job-capable, ever.
		1682
		1683	=cut
		1684
		1685	sub list_logins {
		1686	my $dirs = aio_readdir $PLAYERDIR
		1687	or return [];
		1688
		1689	my @logins;
		1690
		1691	for my $login (@$dirs) {
		1692	my $path = path $login;
		1693
		1694	# a .pst is a dead give-away for a valid player
		1695	# if no pst file found, open and chekc for blocked users
		1696	if (aio_stat "$path.pst") {
		1697	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1698	aio_read $fh, 0, 512, my $buf, 0 or next;
		1699	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1700	}
		1701
		1702	utf8::decode $login;
		1703	push @logins, $login;
		1704	}
		1705
		1706	\@logins
		1707	}
		1708
		1709	=item $player->maps
		1710
		1711	=item cf::player::maps $login
		1712
		1713	Returns an arrayref of map paths that are private for this
		1714	player. May block.
		1715
		1716	=cut
		1717
		1718	sub maps($) {
		1719	my ($pl) = @_;
		1720
		1721	$pl = ref $pl ? $pl->ob->name : $pl;
		1722
		1723	my $files = aio_readdir playerdir $pl
		1724	or return;
		1725
		1726	my @paths;
		1727
		1728	for (@$files) {
		1729	utf8::decode $_;
		1730	next if /\.(?:pl|pst)$/;
		1731	next unless /^$PATH_SEP/o;
		1732
		1733	push @paths, cf::map::normalise "~$pl/$_";
		1734	}
		1735
		1736	\@paths
		1737	}
		1738
		1739	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1740
		1741	Expand deliantra pod fragments into protocol xml.
		1742
		1743	=item $player->ext_reply ($msgid, @msg)
		1744
		1745	Sends an ext reply to the player.
		1746
		1747	=cut
		1748
		1749	sub ext_reply($$@) {
		1750	my ($self, $id, @msg) = @_;
		1751
		1752	$self->ns->ext_reply ($id, @msg)
		1753	}
		1754
		1755	=item $player->ext_msg ($type, @msg)
		1756
		1757	Sends an ext event to the client.
		1758
		1759	=cut
		1760
		1761	sub ext_msg($$@) {
		1762	my ($self, $type, @msg) = @_;
		1763
		1764	$self->ns->ext_msg ($type, @msg);
		1765	}
		1766
		1767	=head3 cf::region
1100		1768
1101	=over 4	1769	=over 4
1102		1770
1103	=item cf::player::exists $login
1104
1105	Returns true when the given account exists.
1106
1107	=cut	1771	=cut
1108		1772
1109	sub cf::player::exists($) {	1773	package cf::region;
1110	cf::player::find $_[0]
1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1112	}
1113		1774
1114	=item $player->ext_reply ($msgid, $msgtype, %msg)	1775	=item cf::region::find_by_path $path
1115		1776
1116	Sends an ext reply to the player.	1777	Tries to decuce the likely region for a map knowing only its path.
1117		1778
1118	=cut	1779	=cut
1119		1780
1120	sub cf::player::ext_reply($$$%) {	1781	sub find_by_path($) {
1121	my ($self, $id, %msg) = @_;	1782	my ($path) = @_;
1122		1783
1123	$msg{msgid} = $id;	1784	$path =~ s/^~[^\/]*//; # skip ~login
1124		1785
1125	$self->send ("ext " . to_json \%msg);	1786	my ($match, $specificity);
		1787
		1788	for my $region (list) {
		1789	if ($region->{match} && $path =~ $region->{match}) {
		1790	($match, $specificity) = ($region, $region->specificity)
		1791	if $region->specificity > $specificity;
		1792	}
		1793	}
		1794
		1795	$match
1126	}	1796	}
1127		1797
1128	=back	1798	=back
1129
1130		1799
1131	=head3 cf::map	1800	=head3 cf::map
1132		1801
1133	=over 4	1802	=over 4
1134		1803
…		…
1137	package cf::map;	1806	package cf::map;
1138		1807
1139	use Fcntl;	1808	use Fcntl;
1140	use Coro::AIO;	1809	use Coro::AIO;
1141		1810
		1811	use overload
		1812	'""' => \&as_string,
		1813	fallback => 1;
		1814
1142	our $MAX_RESET = 7200;	1815	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1816	our $DEFAULT_RESET = 3000;
1144		1817
1145	sub generate_random_map {	1818	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1819	my ($self, $rmp) = @_;
		1820
		1821	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1147		1822
1148	# mit "rum" bekleckern, nicht	1823	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1824	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1825	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1826	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1827	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1828	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1829	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1830	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1831	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1832	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1833	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1834	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(cf::region::find $rmp->{region})	1835	(cf::region::find $rmp->{region}), $rmp->{custom}
		1836	)
1162	}	1837	}
1163		1838
1164	# and all this just because we cannot iterate over	1839	=item cf::map->register ($regex, $prio)
1165	# all maps in C++...
1166	sub change_all_map_light {
1167	my ($change) = @_;
1168		1840
1169	$_->change_map_light ($change)	1841	Register a handler for the map path matching the given regex at the
1170	for grep $_->outdoor, values %cf::MAP;	1842	givne priority (higher is better, built-in handlers have priority 0, the
1171	}	1843	default).
1172		1844
1173	sub try_load_header($) {	1845	=cut
		1846
		1847	sub register {
		1848	my (undef, $regex, $prio) = @_;
		1849	my $pkg = caller;
		1850
		1851	no strict;
		1852	push @{"$pkg\::ISA"}, __PACKAGE__;
		1853
		1854	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1855	}
		1856
		1857	# also paths starting with '/'
		1858	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1859
		1860	sub thawer_merge {
		1861	my ($self, $merge) = @_;
		1862
		1863	# we have to keep some variables in memory intact
		1864	local $self->{path};
		1865	local $self->{load_path};
		1866
		1867	$self->SUPER::thawer_merge ($merge);
		1868	}
		1869
		1870	sub normalise {
1174	my ($path) = @_;	1871	my ($path, $base) = @_;
		1872
		1873	$path = "$path"; # make sure its a string
		1874
		1875	$path =~ s/\.map$//;
		1876
		1877	# map plan:
		1878	#
		1879	# /! non-realised random map exit (special hack!)
		1880	# {... are special paths that are not being touched
		1881	# ?xxx/... are special absolute paths
		1882	# ?random/... random maps
		1883	# /... normal maps
		1884	# ~user/... per-player map of a specific user
		1885
		1886	$path =~ s/$PATH_SEP/\//go;
		1887
		1888	# treat it as relative path if it starts with
		1889	# something that looks reasonable
		1890	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1891	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1892
		1893	$base =~ s{[^/]+/?$}{};
		1894	$path = "$base/$path";
		1895	}
		1896
		1897	for ($path) {
		1898	redo if s{//}{/};
		1899	redo if s{/\.?/}{/};
		1900	redo if s{/[^/]+/\.\./}{/};
		1901	}
		1902
		1903	$path
		1904	}
		1905
		1906	sub new_from_path {
		1907	my (undef, $path, $base) = @_;
		1908
		1909	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1910
		1911	$path = normalise $path, $base;
		1912
		1913	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1914	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1915	my $self = bless cf::map::new, $pkg;
		1916	$self->{path} = $path; $self->path ($path);
		1917	$self->init; # pass $1 etc.
		1918	return $self;
		1919	}
		1920	}
		1921
		1922	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1923	()
		1924	}
		1925
		1926	sub init {
		1927	my ($self) = @_;
		1928
		1929	$self
		1930	}
		1931
		1932	sub as_string {
		1933	my ($self) = @_;
		1934
		1935	"$self->{path}"
		1936	}
		1937
		1938	# the displayed name, this is a one way mapping
		1939	sub visible_name {
		1940	&as_string
		1941	}
		1942
		1943	# the original (read-only) location
		1944	sub load_path {
		1945	my ($self) = @_;
		1946
		1947	"$MAPDIR/$self->{path}.map"
		1948	}
		1949
		1950	# the temporary/swap location
		1951	sub save_path {
		1952	my ($self) = @_;
		1953
		1954	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1955	"$TMPDIR/$path.map"
		1956	}
		1957
		1958	# the unique path, undef == no special unique path
		1959	sub uniq_path {
		1960	my ($self) = @_;
		1961
		1962	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1963	"$UNIQUEDIR/$path"
		1964	}
		1965
		1966	sub decay_objects {
		1967	my ($self) = @_;
		1968
		1969	return if $self->{deny_reset};
		1970
		1971	$self->do_decay_objects;
		1972	}
		1973
		1974	sub unlink_save {
		1975	my ($self) = @_;
		1976
		1977	utf8::encode (my $save = $self->save_path);
		1978	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1979	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1980	}
		1981
		1982	sub load_header_from($) {
		1983	my ($self, $path) = @_;
1175		1984
1176	utf8::encode $path;	1985	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1986	my $f = new_from_file cf::object::thawer $path
1178	or return;	1987	or return;
1179		1988
1180	my $map = cf::map::new	1989	$self->_load_header ($f)
1181	or return;	1990	or return;
1182		1991
1183	$map->load_header ($path)	1992	local $MAP_LOADING{$self->{path}} = $self;
		1993	$f->resolve_delayed_derefs;
		1994
		1995	$self->{load_path} = $path;
		1996
		1997	1
		1998	}
		1999
		2000	sub load_header_orig {
		2001	my ($self) = @_;
		2002
		2003	$self->load_header_from ($self->load_path)
		2004	}
		2005
		2006	sub load_header_temp {
		2007	my ($self) = @_;
		2008
		2009	$self->load_header_from ($self->save_path)
		2010	}
		2011
		2012	sub prepare_temp {
		2013	my ($self) = @_;
		2014
		2015	$self->last_access ((delete $self->{last_access})
		2016	|| $cf::RUNTIME); #d#
		2017	# safety
		2018	$self->{instantiate_time} = $cf::RUNTIME
		2019	if $self->{instantiate_time} > $cf::RUNTIME;
		2020	}
		2021
		2022	sub prepare_orig {
		2023	my ($self) = @_;
		2024
		2025	$self->{load_original} = 1;
		2026	$self->{instantiate_time} = $cf::RUNTIME;
		2027	$self->last_access ($cf::RUNTIME);
		2028	$self->instantiate;
		2029	}
		2030
		2031	sub load_header {
		2032	my ($self) = @_;
		2033
		2034	if ($self->load_header_temp) {
		2035	$self->prepare_temp;
		2036	} else {
		2037	$self->load_header_orig
1184	or return;	2038	or return;
		2039	$self->prepare_orig;
		2040	}
1185		2041
1186	$map->{load_path} = $path;	2042	$self->{deny_reset} = 1
		2043	if $self->no_reset;
1187		2044
1188	$map	2045	$self->default_region (cf::region::find_by_path $self->{path})
1189	}	2046	unless $self->default_region;
1190		2047
		2048	1
		2049	}
		2050
1191	sub find_map;	2051	sub find;
1192	sub find_map {	2052	sub find {
1193	my ($path, $origin) = @_;	2053	my ($path, $origin) = @_;
1194		2054
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	2055	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		2056
1200	cf::lock_wait "map_find:$key";	2057	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1201
1202	$cf::MAP{$key} || do {
1203	my $guard = cf::lock_acquire "map_find:$key";	2058	my $guard2 = cf::lock_acquire "map_find:$path";
1204		2059
1205	# do it the slow way	2060	$cf::MAP{$path} || do {
1206	my $map = try_load_header $path->save_path;	2061	my $map = new_from_path cf::map $path
1207
1208	if ($map) {
1209	# safety
1210	$map->{instantiate_time} = $cf::RUNTIME
1211	if $map->{instantiate_time} > $cf::RUNTIME;
1212	} else {
1213	if (my $rmp = $path->random_map_params) {
1214	$map = generate_random_map $key, $rmp;
1215	} else {
1216	$map = try_load_header $path->load_path;
1217	}
1218
1219	$map or return;	2062	or return;
1220		2063
1221	$map->{load_original} = 1;
1222	$map->{instantiate_time} = $cf::RUNTIME;
1223	$map->instantiate;
1224
1225	# per-player maps become, after loading, normal maps
1226	$map->per_player (0) if $path->{user_rel};
1227	}
1228
1229	$map->path ($key);
1230	$map->{path} = $path;
1231	$map->{last_save} = $cf::RUNTIME;	2064	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);
1233		2065
1234	if ($map->should_reset) {	2066	$map->load_header
		2067	or return;
		2068
		2069	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2070	# doing this can freeze the server in a sync job, obviously
		2071	#$cf::WAIT_FOR_TICK->wait;
		2072	undef $guard2;
		2073	undef $guard1;
1235	$map->reset;	2074	$map->reset;
1236	undef $guard;	2075	return find $path;
1237	$map = find_map $path
1238	or return;
1239	}	2076	}
1240		2077
1241	$cf::MAP{$key} = $map	2078	$cf::MAP{$path} = $map
1242	}	2079	}
1243	}	2080	}
		2081
		2082	sub pre_load { }
		2083	#sub post_load { } # XS
1244		2084
1245	sub load {	2085	sub load {
1246	my ($self) = @_;	2086	my ($self) = @_;
1247		2087
		2088	local $self->{deny_reset} = 1; # loading can take a long time
		2089
1248	my $path = $self->{path};	2090	my $path = $self->{path};
		2091
		2092	{
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2093	my $guard = cf::lock_acquire "map_data:$path";
1250		2094
		2095	return unless $self->valid;
1251	return if $self->in_memory != cf::MAP_SWAPPED;	2096	return unless $self->in_memory == cf::MAP_SWAPPED;
1252		2097
1253	$self->in_memory (cf::MAP_LOADING);	2098	$self->in_memory (cf::MAP_LOADING);
1254		2099
1255	$self->alloc;	2100	$self->alloc;
1256	$self->load_objects ($self->{load_path}, 1)	2101
		2102	$self->pre_load;
		2103	cf::cede_to_tick;
		2104
		2105	my $f = new_from_file cf::object::thawer $self->{load_path};
		2106	$f->skip_block;
		2107	$self->_load_objects ($f)
1257	or return;	2108	or return;
1258		2109
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2110	$self->post_load_original
1260	if delete $self->{load_original};	2111	if delete $self->{load_original};
1261		2112
1262	if (my $uniq = $path->uniq_path) {	2113	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	2114	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	2115	unless (aio_stat $uniq) {
		2116	if (my $f = new_from_file cf::object::thawer $uniq) {
1265	$self->clear_unique_items;	2117	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	2118	$self->_load_objects ($f);
		2119	$f->resolve_delayed_derefs;
		2120	}
1267	}	2121	}
1268	}	2122	}
1269		2123
		2124	$f->resolve_delayed_derefs;
		2125
		2126	cf::cede_to_tick;
1270	# now do the right thing for maps	2127	# now do the right thing for maps
1271	$self->link_multipart_objects;	2128	$self->link_multipart_objects;
1272
1273	if ($self->{path}->is_style_map) {
1274	$self->{deny_save} = 1;
1275	$self->{deny_reset} = 1;
1276	} else {
1277	$self->fix_auto_apply;
1278	$self->decay_objects;
1279	$self->update_buttons;
1280	$self->set_darkness_map;
1281	$self->difficulty ($self->estimate_difficulty)	2129	$self->difficulty ($self->estimate_difficulty)
1282	unless $self->difficulty;	2130	unless $self->difficulty;
		2131	cf::cede_to_tick;
		2132
		2133	unless ($self->{deny_activate}) {
		2134	$self->decay_objects;
		2135	$self->fix_auto_apply;
		2136	$self->update_buttons;
		2137	cf::cede_to_tick;
1283	$self->activate;	2138	$self->activate;
1284	}	2139	}
1285		2140
		2141	$self->{last_save} = $cf::RUNTIME;
		2142	$self->last_access ($cf::RUNTIME);
		2143
1286	$self->in_memory (cf::MAP_IN_MEMORY);	2144	$self->in_memory (cf::MAP_ACTIVE);
1287	}	2145	}
1288		2146
1289	sub load_map_sync {	2147	$self->post_load;
		2148	}
		2149
		2150	# customize the map for a given player, i.e.
		2151	# return the _real_ map. used by e.g. per-player
		2152	# maps to change the path to ~playername/mappath
		2153	sub customise_for {
		2154	my ($self, $ob) = @_;
		2155
		2156	return find "~" . $ob->name . "/" . $self->{path}
		2157	if $self->per_player;
		2158
		2159	# return find "?party/" . $ob->name . "/" . $self->{path}
		2160	# if $self->per_party;
		2161
		2162	$self
		2163	}
		2164
		2165	# find and load all maps in the 3x3 area around a map
		2166	sub load_neighbours {
		2167	my ($map) = @_;
		2168
		2169	my @neigh; # diagonal neighbours
		2170
		2171	for (0 .. 3) {
		2172	my $neigh = $map->tile_path ($_)
		2173	or next;
		2174	$neigh = find $neigh, $map
		2175	or next;
		2176	$neigh->load;
		2177
		2178	# now find the diagonal neighbours
		2179	push @neigh,
		2180	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2181	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2182	}
		2183
		2184	for (grep defined $_->[0], @neigh) {
		2185	my ($path, $origin) = @$_;
		2186	my $neigh = find $path, $origin
		2187	or next;
		2188	$neigh->load;
		2189	}
		2190	}
		2191
		2192	sub find_sync {
1290	my ($path, $origin) = @_;	2193	my ($path, $origin) = @_;
1291		2194
1292	#warn "load_map_sync<$path, $origin>\n";#d#	2195	cf::sync_job { find $path, $origin }
		2196	}
1293		2197
		2198	sub do_load_sync {
		2199	my ($map) = @_;
		2200
		2201	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2202	if $Coro::current == $Coro::main;
		2203
		2204	cf::sync_job { $map->load };
		2205	}
		2206
		2207	our %MAP_PREFETCH;
		2208	our $MAP_PREFETCHER = undef;
		2209
		2210	sub find_async {
		2211	my ($path, $origin, $load) = @_;
		2212
		2213	$path = normalise $path, $origin && $origin->{path};
		2214
		2215	if (my $map = $cf::MAP{$path}) {
		2216	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2217	}
		2218
		2219	$MAP_PREFETCH{$path} |= $load;
		2220
		2221	$MAP_PREFETCHER ||= cf::async {
		2222	$Coro::current->{desc} = "map prefetcher";
		2223
		2224	while (%MAP_PREFETCH) {
		2225	while (my ($k, $v) = each %MAP_PREFETCH) {
		2226	if (my $map = find $k) {
		2227	$map->load if $v;
		2228	}
		2229
		2230	delete $MAP_PREFETCH{$k};
		2231	}
		2232	}
		2233	undef $MAP_PREFETCHER;
		2234	};
		2235	$MAP_PREFETCHER->prio (6);
		2236
		2237	()
		2238	}
		2239
		2240	# common code, used by both ->save and ->swapout
		2241	sub _save {
		2242	my ($self) = @_;
		2243
		2244	$self->{last_save} = $cf::RUNTIME;
		2245
		2246	return unless $self->dirty;
		2247
		2248	my $save = $self->save_path; utf8::encode $save;
		2249	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2250
		2251	$self->{load_path} = $save;
		2252
		2253	return if $self->{deny_save};
		2254
		2255	local $self->{last_access} = $self->last_access;#d#
		2256
1294	cf::sync_job {	2257	cf::async {
1295	my $map = cf::map::find_map $path, $origin	2258	$Coro::current->{desc} = "map player save";
1296	or return;	2259	$_->contr->save for $self->players;
1297	$map->load;	2260	};
1298	$map	2261
		2262	cf::get_slot 0.02;
		2263
		2264	if ($uniq) {
		2265	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2266	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2267	} else {
		2268	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1299	}	2269	}
1300	}	2270	}
1301		2271
1302	sub save {	2272	sub save {
1303	my ($self) = @_;	2273	my ($self) = @_;
1304		2274
1305	$self->{last_save} = $cf::RUNTIME;	2275	my $lock = cf::lock_acquire "map_data:$self->{path}";
1306		2276
1307	return unless $self->dirty;	2277	$self->_save;
1308
1309	my $save = $self->{path}->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1311
1312	$self->{load_path} = $save;
1313
1314	return if $self->{deny_save};
1315
1316	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}
1322	}	2278	}
1323		2279
1324	sub swap_out {	2280	sub swap_out {
1325	my ($self) = @_;	2281	my ($self) = @_;
1326		2282
1327	# save first because save cedes	2283	my $lock = cf::lock_acquire "map_data:$self->{path}";
1328	$self->save;
1329		2284
		2285	return if $self->in_memory != cf::MAP_ACTIVE;
		2286	return if $self->{deny_save};
1330	return if $self->players;	2287	return if $self->players;
1331	return if $self->in_memory != cf::MAP_IN_MEMORY;
1332	return if $self->{deny_save};
1333		2288
		2289	# first deactivate the map and "unlink" it from the core
		2290	$self->deactivate;
		2291	$_->clear_links_to ($self) for values %cf::MAP;
		2292	$self->in_memory (cf::MAP_SWAPPED);
		2293
		2294	# then atomically save
		2295	$self->_save;
		2296
		2297	# then free the map
1334	$self->clear;	2298	$self->clear;
1335	$self->in_memory (cf::MAP_SWAPPED);
1336	}	2299	}
1337		2300
1338	sub reset_at {	2301	sub reset_at {
1339	my ($self) = @_;	2302	my ($self) = @_;
1340		2303
1341	# TODO: safety, remove and allow resettable per-player maps	2304	# TODO: safety, remove and allow resettable per-player maps
1342	return 1e99 if $self->{path}{user_rel};
1343	return 1e99 if $self->{deny_reset};	2305	return 1e99 if $self->{deny_reset};
1344		2306
1345	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2307	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1346	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2308	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1347		2309
…		…
1352	my ($self) = @_;	2314	my ($self) = @_;
1353		2315
1354	$self->reset_at <= $cf::RUNTIME	2316	$self->reset_at <= $cf::RUNTIME
1355	}	2317	}
1356		2318
1357	sub unlink_save {
1358	my ($self) = @_;
1359
1360	utf8::encode (my $save = $self->{path}->save_path);
1361	aioreq_pri 3; IO::AIO::aio_unlink $save;
1362	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1363	}
1364
1365	sub rename {
1366	my ($self, $new_path) = @_;
1367
1368	$self->unlink_save;
1369
1370	delete $cf::MAP{$self->path};
1371	$self->{path} = new cf::path $new_path;
1372	$self->path ($self->{path}->as_string);
1373	$cf::MAP{$self->path} = $self;
1374
1375	$self->save;
1376	}
1377
1378	sub reset {	2319	sub reset {
1379	my ($self) = @_;	2320	my ($self) = @_;
1380		2321
		2322	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2323
1381	return if $self->players;	2324	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		2325
1384	warn "resetting map ", $self->path;#d#	2326	cf::trace "resetting map ", $self->path, "\n";
		2327
		2328	$self->in_memory (cf::MAP_SWAPPED);
		2329
		2330	# need to save uniques path
		2331	unless ($self->{deny_save}) {
		2332	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2333
		2334	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2335	if $uniq;
		2336	}
1385		2337
1386	delete $cf::MAP{$self->path};	2338	delete $cf::MAP{$self->path};
1387		2339
		2340	$self->deactivate;
1388	$_->clear_links_to ($self) for values %cf::MAP;	2341	$_->clear_links_to ($self) for values %cf::MAP;
		2342	$self->clear;
1389		2343
1390	$self->unlink_save;	2344	$self->unlink_save;
1391	$self->destroy;	2345	$self->destroy;
1392	}	2346	}
1393		2347
1394	my $nuke_counter = "aaaa";	2348	my $nuke_counter = "aaaa";
1395		2349
1396	sub nuke {	2350	sub nuke {
1397	my ($self) = @_;	2351	my ($self) = @_;
1398		2352
		2353	{
		2354	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2355
		2356	delete $cf::MAP{$self->path};
		2357
		2358	$self->unlink_save;
		2359
		2360	bless $self, "cf::map::wrap";
		2361	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	2362	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2363	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2364	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2365
		2366	$cf::MAP{$self->path} = $self;
		2367	}
		2368
1402	$self->reset; # polite request, might not happen	2369	$self->reset; # polite request, might not happen
1403	}	2370	}
1404		2371
1405	sub customise_for {	2372	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2373
1408	if ($map->per_player) {	2374	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2375	maps. May block.
		2376
		2377	=cut
		2378
		2379	sub tmp_maps() {
1410	}	2380	[
1411		2381	map {
1412	$map	2382	utf8::decode $_;
		2383	/\.map$/
		2384	? normalise $_
		2385	: ()
		2386	} @{ aio_readdir $TMPDIR or [] }
		2387	]
1413	}	2388	}
1414		2389
1415	sub emergency_save {	2390	=item $maps = cf::map::random_maps
1416	local $cf::FREEZE = 1;
1417		2391
1418	warn "enter emergency map save\n";	2392	Returns an arrayref with all map paths of currently instantiated and saved
		2393	random maps. May block.
1419		2394
1420	cf::sync_job {	2395	=cut
1421	warn "begin emergency map save\n";	2396
1422	$_->save for values %cf::MAP;	2397	sub random_maps() {
		2398	[
		2399	map {
		2400	utf8::decode $_;
		2401	/\.map$/
		2402	? normalise "?random/$_"
		2403	: ()
		2404	} @{ aio_readdir $RANDOMDIR or [] }
		2405	]
		2406	}
		2407
		2408	=item cf::map::unique_maps
		2409
		2410	Returns an arrayref of paths of all shared maps that have
		2411	instantiated unique items. May block.
		2412
		2413	=cut
		2414
		2415	sub unique_maps() {
		2416	[
		2417	map {
		2418	utf8::decode $_;
		2419	s/\.map$//; # TODO future compatibility hack
		2420	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2421	? ()
		2422	: normalise $_
		2423	} @{ aio_readdir $UNIQUEDIR or [] }
		2424	]
		2425	}
		2426
		2427	=item cf::map::static_maps
		2428
		2429	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2430	file in the shared directory excluding F</styles> and F</editor>). May
		2431	block.
		2432
		2433	=cut
		2434
		2435	sub static_maps() {
		2436	my @dirs = "";
		2437	my @maps;
		2438
		2439	while (@dirs) {
		2440	my $dir = shift @dirs;
		2441
		2442	next if $dir eq "/styles" || $dir eq "/editor";
		2443
		2444	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2445	or return;
		2446
		2447	for (@$files) {
		2448	s/\.map$// or next;
		2449	utf8::decode $_;
		2450	push @maps, "$dir/$_";
		2451	}
		2452
		2453	push @dirs, map "$dir/$_", @$dirs;
1423	};	2454	}
1424		2455
1425	warn "end emergency map save\n";	2456	\@maps
		2457	}
		2458
		2459	=back
		2460
		2461	=head3 cf::object
		2462
		2463	=cut
		2464
		2465	package cf::object;
		2466
		2467	=over 4
		2468
		2469	=item $ob->inv_recursive
		2470
		2471	Returns the inventory of the object I<and> their inventories, recursively,
		2472	but I<not> the object itself.
		2473
		2474	=cut
		2475
		2476	sub inv_recursive_;
		2477	sub inv_recursive_ {
		2478	map { $_, inv_recursive_ $_->inv } @_
		2479	}
		2480
		2481	sub inv_recursive {
		2482	inv_recursive_ inv $_[0]
		2483	}
		2484
		2485	=item $ref = $ob->ref
		2486
		2487	Creates and returns a persistent reference to an object that can be stored as a string.
		2488
		2489	=item $ob = cf::object::deref ($refstring)
		2490
		2491	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2492	even if the object actually exists. May block.
		2493
		2494	=cut
		2495
		2496	sub deref {
		2497	my ($ref) = @_;
		2498
		2499	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2500	my ($uuid, $name) = ($1, $2);
		2501	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2502	or return;
		2503	$pl->ob->uuid eq $uuid
		2504	or return;
		2505
		2506	$pl->ob
		2507	} else {
		2508	warn "$ref: cannot resolve object reference\n";
		2509	undef
		2510	}
1426	}	2511	}
1427		2512
1428	package cf;	2513	package cf;
1429		2514
1430	=back	2515	=back
1431
1432		2516
1433	=head3 cf::object::player	2517	=head3 cf::object::player
1434		2518
1435	=over 4	2519	=over 4
1436		2520
…		…
1439	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2523	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	2524	can be C<undef>. Does the right thing when the player is currently in a
1441	dialogue with the given NPC character.	2525	dialogue with the given NPC character.
1442		2526
1443	=cut	2527	=cut
		2528
		2529	our $SAY_CHANNEL = {
		2530	id => "say",
		2531	title => "Map",
		2532	reply => "say ",
		2533	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2534	};
		2535
		2536	our $CHAT_CHANNEL = {
		2537	id => "chat",
		2538	title => "Chat",
		2539	reply => "chat ",
		2540	tooltip => "Player chat and shouts, global to the server.",
		2541	};
1444		2542
1445	# rough implementation of a future "reply" method that works	2543	# rough implementation of a future "reply" method that works
1446	# with dialog boxes.	2544	# with dialog boxes.
1447	#TODO: the first argument must go, split into a $npc->reply_to ( method	2545	#TODO: the first argument must go, split into a $npc->reply_to ( method
1448	sub cf::object::player::reply($$$;$) {	2546	sub cf::object::player::reply($$$;$) {
…		…
1450		2548
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2549	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2550
1453	if ($self->{record_replies}) {	2551	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2552	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2553
1455	} else {	2554	} else {
		2555	my $pl = $self->contr;
		2556
		2557	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2558	my $dialog = $pl->{npc_dialog};
		2559	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2560
		2561	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2562	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2563	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2564	}
1458	}	2565	}
		2566	}
		2567
		2568	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2569
		2570	=cut
		2571
		2572	sub cf::object::send_msg {
		2573	my $pl = shift->contr
		2574	or return;
		2575	$pl->send_msg (@_);
1459	}	2576	}
1460		2577
1461	=item $player_object->may ("access")	2578	=item $player_object->may ("access")
1462		2579
1463	Returns wether the given player is authorized to access resource "access"	2580	Returns wether the given player is authorized to access resource "access"
…		…
1476		2593
1477	=item $player_object->enter_link	2594	=item $player_object->enter_link
1478		2595
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2596	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2597
1481	The player should be reaosnably safe there for short amounts of time. You	2598	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.	2599	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2600	though, as the player cannot control the character while it is on the link
		2601	map.
		2602
		2603	Will never block.
1483		2604
1484	=item $player_object->leave_link ($map, $x, $y)	2605	=item $player_object->leave_link ($map, $x, $y)
1485		2606
1486	Moves the player out of the specila link map onto the given map. If the	2607	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2608	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2609	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2610	fails, to the emergency map position.
1490		2611
1491	Might block.	2612	Might block.
1492		2613
1493	=cut	2614	=cut
		2615
		2616	sub link_map {
		2617	unless ($LINK_MAP) {
		2618	$LINK_MAP = cf::map::find "{link}"
		2619	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2620	$LINK_MAP->load;
		2621	}
		2622
		2623	$LINK_MAP
		2624	}
1494		2625
1495	sub cf::object::player::enter_link {	2626	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2627	my ($self) = @_;
1497		2628
1498	$self->deactivate_recursive;	2629	$self->deactivate_recursive;
1499		2630
1500	return if $self->map == $LINK_MAP;	2631	++$self->{_link_recursion};
		2632
		2633	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2634
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2635	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2636	if $self->map && $self->map->{path} ne "{link}";
1504		2637
1505	$self->enter_map ($LINK_MAP, 20, 20);	2638	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1506	}	2639	}
1507		2640
1508	sub cf::object::player::leave_link {	2641	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2642	my ($self, $map, $x, $y) = @_;
		2643
		2644	return unless $self->contr->active;
1510		2645
1511	my $link_pos = delete $self->{_link_pos};	2646	my $link_pos = delete $self->{_link_pos};
1512		2647
1513	unless ($map) {	2648	unless ($map) {
1514	# restore original map position	2649	# restore original map position
1515	($map, $x, $y) = @{ $link_pos || [] };	2650	($map, $x, $y) = @{ $link_pos || [] };
1516	$map = cf::map::find_map $map;	2651	$map = cf::map::find $map;
1517		2652
1518	unless ($map) {	2653	unless ($map) {
1519	($map, $x, $y) = @$EMERGENCY_POSITION;	2654	($map, $x, $y) = @$EMERGENCY_POSITION;
1520	$map = cf::map::find_map $map	2655	$map = cf::map::find $map
1521	or die "FATAL: cannot load emergency map\n";	2656	or die "FATAL: cannot load emergency map\n";
1522	}	2657	}
1523	}	2658	}
1524		2659
1525	($x, $y) = (-1, -1)	2660	($x, $y) = (-1, -1)
1526	unless (defined $x) && (defined $y);	2661	unless (defined $x) && (defined $y);
1527		2662
1528	# use -1 or undef as default coordinates, not 0, 0	2663	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2664	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2665	if $x <= 0 && $y <= 0;
1531		2666
1532	$map->load;	2667	$map->load;
		2668	$map->load_neighbours;
1533		2669
		2670	return unless $self->contr->active;
		2671
		2672	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2673	if ($self->enter_map ($map, $x, $y)) {
		2674	# entering was successful
		2675	delete $self->{_link_recursion};
		2676	# only activate afterwards, to support waiting in hooks
1534	$self->activate_recursive;	2677	$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	$pl->ob->leave_link
1546	};
1547	}
1548	},	2678	}
1549	on_login => sub {
1550	my ($pl) = @_;
1551		2679
1552	# try to abort aborted map switching on player login :)	2680	}
1553	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {
1555	$pl->ob->enter_link;
1556	cf::async {
1557	# we need this sleep as the login has a concurrent enter_exit running
1558	# and this sleep increases chances of the player not ending up in scorn
1559	Coro::Timer::sleep 1;
1560	$pl->ob->leave_link;
1561	};
1562	}
1563	},
1564	);
1565		2681
1566	=item $player_object->goto_map ($path, $x, $y)	2682	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1567		2683
1568	=cut	2684	Moves the player to the given map-path and coordinates by first freezing
		2685	her, loading and preparing them map, calling the provided $check callback
		2686	that has to return the map if sucecssful, and then unfreezes the player on
		2687	the new (success) or old (failed) map position. In either case, $done will
		2688	be called at the end of this process.
1569		2689
		2690	Note that $check will be called with a potentially non-loaded map, so if
		2691	it needs a loaded map it has to call C<< ->load >>.
		2692
		2693	=cut
		2694
		2695	our $GOTOGEN;
		2696
1570	sub cf::object::player::goto_map {	2697	sub cf::object::player::goto {
1571	my ($self, $path, $x, $y) = @_;	2698	my ($self, $path, $x, $y, $check, $done) = @_;
		2699
		2700	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2701	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2702	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2703	($path, $x, $y) = @$EMERGENCY_POSITION;
		2704	}
		2705
		2706	# do generation counting so two concurrent goto's will be executed in-order
		2707	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1572		2708
1573	$self->enter_link;	2709	$self->enter_link;
1574		2710
1575	(cf::async {	2711	(async {
1576	$path = new cf::path $path;	2712	$Coro::current->{desc} = "player::goto $path $x $y";
1577		2713
1578	my $map = cf::map::find_map $path->as_string;	2714	# *tag paths override both path and x|y
		2715	if ($path =~ /^\*(.*)$/) {
		2716	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2717	my $ob = $obs[rand @obs];
		2718
		2719	# see if we actually can go there
		2720	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2721	$ob = $obs[rand @obs];
		2722	} else {
		2723	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2724	}
		2725	# else put us there anyways for now #d#
		2726
		2727	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2728	} else {
		2729	($path, $x, $y) = (undef, undef, undef);
		2730	}
		2731	}
		2732
		2733	my $map = eval {
		2734	my $map = defined $path ? cf::map::find $path : undef;
		2735
		2736	if ($map) {
1579	$map = $map->customise_for ($self) if $map;	2737	$map = $map->customise_for ($self);
1580		2738	$map = $check->($map, $x, $y, $self) if $check && $map;
1581	# warn "entering ", $map->path, " at ($x, $y)\n"	2739	} else {
1582	# if $map;
1583
1584	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2740	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2741	}
1585		2742
		2743	$map
		2744	};
		2745
		2746	if ($@) {
		2747	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2748	LOG llevError | logBacktrace, Carp::longmess $@;
		2749	}
		2750
		2751	if ($gen == $self->{_goto_generation}) {
		2752	delete $self->{_goto_generation};
1586	$self->leave_link ($map, $x, $y);	2753	$self->leave_link ($map, $x, $y);
		2754	}
		2755
		2756	$done->($self) if $done;
1587	})->prio (1);	2757	})->prio (1);
1588	}	2758	}
1589		2759
1590	=item $player_object->enter_exit ($exit_object)	2760	=item $player_object->enter_exit ($exit_object)
1591		2761
…		…
1593		2763
1594	sub parse_random_map_params {	2764	sub parse_random_map_params {
1595	my ($spec) = @_;	2765	my ($spec) = @_;
1596		2766
1597	my $rmp = { # defaults	2767	my $rmp = { # defaults
1598	xsize => 10,	2768	xsize => (cf::rndm 15, 40),
1599	ysize => 10,	2769	ysize => (cf::rndm 15, 40),
		2770	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2771	#layout => string,
1600	};	2772	};
1601		2773
1602	for (split /\n/, $spec) {	2774	for (split /\n/, $spec) {
1603	my ($k, $v) = split /\s+/, $_, 2;	2775	my ($k, $v) = split /\s+/, $_, 2;
1604		2776
…		…
1616	# that depends on the exit object	2788	# that depends on the exit object
1617		2789
1618	my $rmp = parse_random_map_params $exit->msg;	2790	my $rmp = parse_random_map_params $exit->msg;
1619		2791
1620	if ($exit->map) {	2792	if ($exit->map) {
1621	$rmp->{region} = $exit->map->region_name;	2793	$rmp->{region} = $exit->region->name;
1622	$rmp->{origin_map} = $exit->map->path;	2794	$rmp->{origin_map} = $exit->map->path;
1623	$rmp->{origin_x} = $exit->x;	2795	$rmp->{origin_x} = $exit->x;
1624	$rmp->{origin_y} = $exit->y;	2796	$rmp->{origin_y} = $exit->y;
		2797
		2798	$exit->map->touch;
1625	}	2799	}
1626		2800
1627	$rmp->{random_seed} ||= $exit->random_seed;	2801	$rmp->{random_seed} ||= $exit->random_seed;
1628		2802
1629	my $data = cf::to_json $rmp;	2803	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1630	my $md5 = Digest::MD5::md5_hex $data;	2804	my $md5 = Digest::MD5::md5_hex $data;
		2805	my $meta = "$RANDOMDIR/$md5.meta";
1631		2806
1632	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2807	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1633	aio_write $fh, 0, (length $data), $data, 0;	2808	aio_write $fh, 0, (length $data), $data, 0;
		2809	undef $fh;
		2810	aio_rename "$meta~", $meta;
1634		2811
		2812	my $slaying = "?random/$md5";
		2813
		2814	if ($exit->valid) {
1635	$exit->slaying ("?random/$md5");	2815	$exit->slaying ("?random/$md5");
1636	$exit->msg (undef);	2816	$exit->msg (undef);
		2817	}
1637	}	2818	}
1638	}	2819	}
1639		2820
1640	sub cf::object::player::enter_exit {	2821	sub cf::object::player::enter_exit {
1641	my ($self, $exit) = @_;	2822	my ($self, $exit) = @_;
1642		2823
1643	return unless $self->type == cf::PLAYER;	2824	return unless $self->type == cf::PLAYER;
1644		2825
1645	$self->enter_link;	2826	$self->enter_link;
1646		2827
1647	(cf::async {	2828	(async {
		2829	$Coro::current->{desc} = "enter_exit";
		2830
1648	unless (eval {	2831	unless (eval {
		2832	$self->deactivate_recursive; # just to be sure
		2833
		2834	# random map handling
		2835	{
		2836	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2837
1649	prepare_random_map $exit	2838	prepare_random_map $exit
1650	if $exit->slaying eq "/!";	2839	if $exit->slaying eq "/!";
		2840	}
1651		2841
1652	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2842	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1653	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2843	my $x = $exit->stats->hp;
		2844	my $y = $exit->stats->sp;
1654		2845
		2846	$self->goto ($map, $x, $y);
		2847
		2848	# if exit is damned, update players death & WoR home-position
		2849	$self->contr->savebed ($map, $x, $y)
		2850	if $exit->flag (cf::FLAG_DAMNED);
		2851
1655	1;	2852	1
1656	}) {	2853	}) {
1657	$self->message ("Something went wrong deep within the crossfire server. "	2854	$self->message ("Something went wrong deep within the deliantra server. "
1658	. "I'll try to bring you back to the map you were before. "	2855	. "I'll try to bring you back to the map you were before. "
1659	. "Please report this to the dungeon master",	2856	. "Please report this to the dungeon master!",
1660	cf::NDI_UNIQUE | cf::NDI_RED);	2857	cf::NDI_UNIQUE | cf::NDI_RED);
1661		2858
1662	warn "ERROR in enter_exit: $@";	2859	error "ERROR in enter_exit: $@";
1663	$self->leave_link;	2860	$self->leave_link;
1664	}	2861	}
1665	})->prio (1);	2862	})->prio (1);
1666	}	2863	}
1667		2864
…		…
1678		2875
1679	sub cf::client::send_drawinfo {	2876	sub cf::client::send_drawinfo {
1680	my ($self, $text, $flags) = @_;	2877	my ($self, $text, $flags) = @_;
1681		2878
1682	utf8::encode $text;	2879	utf8::encode $text;
1683	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2880	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1684	}	2881	}
1685		2882
		2883	=item $client->send_big_packet ($pkt)
		2884
		2885	Like C<send_packet>, but tries to compress large packets, and fragments
		2886	them as required.
		2887
		2888	=cut
		2889
		2890	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2891
		2892	sub cf::client::send_big_packet {
		2893	my ($self, $pkt) = @_;
		2894
		2895	# try lzf for large packets
		2896	$pkt = "lzf " . Compress::LZF::compress $pkt
		2897	if 1024 <= length $pkt and $self->{can_lzf};
		2898
		2899	# split very large packets
		2900	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2901	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2902	$pkt = "frag";
		2903	}
		2904
		2905	$self->send_packet ($pkt);
		2906	}
		2907
		2908	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2909
		2910	Send a drawinfo or msg packet to the client, formatting the msg for the
		2911	client if neccessary. C<$type> should be a string identifying the type of
		2912	the message, with C<log> being the default. If C<$color> is negative, suppress
		2913	the message unless the client supports the msg packet.
		2914
		2915	=cut
		2916
		2917	# non-persistent channels (usually the info channel)
		2918	our %CHANNEL = (
		2919	"c/motd" => {
		2920	id => "infobox",
		2921	title => "MOTD",
		2922	reply => undef,
		2923	tooltip => "The message of the day",
		2924	},
		2925	"c/identify" => {
		2926	id => "infobox",
		2927	title => "Identify",
		2928	reply => undef,
		2929	tooltip => "Items recently identified",
		2930	},
		2931	"c/examine" => {
		2932	id => "infobox",
		2933	title => "Examine",
		2934	reply => undef,
		2935	tooltip => "Signs and other items you examined",
		2936	},
		2937	"c/shopinfo" => {
		2938	id => "infobox",
		2939	title => "Shop Info",
		2940	reply => undef,
		2941	tooltip => "What your bargaining skill tells you about the shop",
		2942	},
		2943	"c/book" => {
		2944	id => "infobox",
		2945	title => "Book",
		2946	reply => undef,
		2947	tooltip => "The contents of a note or book",
		2948	},
		2949	"c/lookat" => {
		2950	id => "infobox",
		2951	title => "Look",
		2952	reply => undef,
		2953	tooltip => "What you saw there",
		2954	},
		2955	"c/who" => {
		2956	id => "infobox",
		2957	title => "Players",
		2958	reply => undef,
		2959	tooltip => "Shows players who are currently online",
		2960	},
		2961	"c/body" => {
		2962	id => "infobox",
		2963	title => "Body Parts",
		2964	reply => undef,
		2965	tooltip => "Shows which body parts you posess and are available",
		2966	},
		2967	"c/statistics" => {
		2968	id => "infobox",
		2969	title => "Statistics",
		2970	reply => undef,
		2971	tooltip => "Shows your primary statistics",
		2972	},
		2973	"c/skills" => {
		2974	id => "infobox",
		2975	title => "Skills",
		2976	reply => undef,
		2977	tooltip => "Shows your experience per skill and item power",
		2978	},
		2979	"c/shopitems" => {
		2980	id => "infobox",
		2981	title => "Shop Items",
		2982	reply => undef,
		2983	tooltip => "Shows the items currently for sale in this shop",
		2984	},
		2985	"c/resistances" => {
		2986	id => "infobox",
		2987	title => "Resistances",
		2988	reply => undef,
		2989	tooltip => "Shows your resistances",
		2990	},
		2991	"c/pets" => {
		2992	id => "infobox",
		2993	title => "Pets",
		2994	reply => undef,
		2995	tooltip => "Shows information abotu your pets/a specific pet",
		2996	},
		2997	"c/perceiveself" => {
		2998	id => "infobox",
		2999	title => "Perceive Self",
		3000	reply => undef,
		3001	tooltip => "You gained detailed knowledge about yourself",
		3002	},
		3003	"c/uptime" => {
		3004	id => "infobox",
		3005	title => "Uptime",
		3006	reply => undef,
		3007	tooltip => "How long the server has been running since last restart",
		3008	},
		3009	"c/mapinfo" => {
		3010	id => "infobox",
		3011	title => "Map Info",
		3012	reply => undef,
		3013	tooltip => "Information related to the maps",
		3014	},
		3015	"c/party" => {
		3016	id => "party",
		3017	title => "Party",
		3018	reply => "gsay ",
		3019	tooltip => "Messages and chat related to your party",
		3020	},
		3021	"c/death" => {
		3022	id => "death",
		3023	title => "Death",
		3024	reply => undef,
		3025	tooltip => "Reason for and more info about your most recent death",
		3026	},
		3027	"c/say" => $SAY_CHANNEL,
		3028	"c/chat" => $CHAT_CHANNEL,
		3029	);
		3030
		3031	sub cf::client::send_msg {
		3032	my ($self, $channel, $msg, $color, @extra) = @_;
		3033
		3034	$msg = $self->pl->expand_cfpod ($msg)
		3035	unless $color & cf::NDI_VERBATIM;
		3036
		3037	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3038
		3039	# check predefined channels, for the benefit of C
		3040	if ($CHANNEL{$channel}) {
		3041	$channel = $CHANNEL{$channel};
		3042
		3043	$self->ext_msg (channel_info => $channel);
		3044	$channel = $channel->{id};
		3045
		3046	} elsif (ref $channel) {
		3047	# send meta info to client, if not yet sent
		3048	unless (exists $self->{channel}{$channel->{id}}) {
		3049	$self->{channel}{$channel->{id}} = $channel;
		3050	$self->ext_msg (channel_info => $channel);
		3051	}
		3052
		3053	$channel = $channel->{id};
		3054	}
		3055
		3056	return unless @extra || length $msg;
		3057
		3058	# default colour, mask it out
		3059	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3060	if $color & cf::NDI_DEF;
		3061
		3062	my $pkt = "msg "
		3063	. $self->{json_coder}->encode (
		3064	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3065	);
		3066
		3067	$self->send_big_packet ($pkt);
		3068	}
		3069
		3070	=item $client->ext_msg ($type, @msg)
		3071
		3072	Sends an ext event to the client.
		3073
		3074	=cut
		3075
		3076	sub cf::client::ext_msg($$@) {
		3077	my ($self, $type, @msg) = @_;
		3078
		3079	if ($self->extcmd == 2) {
		3080	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3081	} elsif ($self->extcmd == 1) { # TODO: remove
		3082	push @msg, msgtype => "event_$type";
		3083	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3084	}
		3085	}
		3086
		3087	=item $client->ext_reply ($msgid, @msg)
		3088
		3089	Sends an ext reply to the client.
		3090
		3091	=cut
		3092
		3093	sub cf::client::ext_reply($$@) {
		3094	my ($self, $id, @msg) = @_;
		3095
		3096	if ($self->extcmd == 2) {
		3097	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3098	} elsif ($self->extcmd == 1) {
		3099	#TODO: version 1, remove
		3100	unshift @msg, msgtype => "reply", msgid => $id;
		3101	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3102	}
		3103	}
1686		3104
1687	=item $success = $client->query ($flags, "text", \&cb)	3105	=item $success = $client->query ($flags, "text", \&cb)
1688		3106
1689	Queues a query to the client, calling the given callback with	3107	Queues a query to the client, calling the given callback with
1690	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3108	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1691	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3109	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1692		3110
1693	Queries can fail, so check the return code. Or don't, as queries will become	3111	Queries can fail, so check the return code. Or don't, as queries will
1694	reliable at some point in the future.	3112	become reliable at some point in the future.
1695		3113
1696	=cut	3114	=cut
1697		3115
1698	sub cf::client::query {	3116	sub cf::client::query {
1699	my ($self, $flags, $text, $cb) = @_;	3117	my ($self, $flags, $text, $cb) = @_;
…		…
1707	utf8::encode $text;	3125	utf8::encode $text;
1708	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3126	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1709		3127
1710	$self->send_packet ($self->{query_queue}[0][0])	3128	$self->send_packet ($self->{query_queue}[0][0])
1711	if @{ $self->{query_queue} } == 1;	3129	if @{ $self->{query_queue} } == 1;
		3130
		3131	1
1712	}	3132	}
1713		3133
1714	cf::client->attach (	3134	cf::client->attach (
		3135	on_connect => sub {
		3136	my ($ns) = @_;
		3137
		3138	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3139	},
1715	on_reply => sub {	3140	on_reply => sub {
1716	my ($ns, $msg) = @_;	3141	my ($ns, $msg) = @_;
1717		3142
1718	# this weird shuffling is so that direct followup queries	3143	# this weird shuffling is so that direct followup queries
1719	# get handled first	3144	# get handled first
1720	my $queue = delete $ns->{query_queue}	3145	my $queue = delete $ns->{query_queue}
1721	or return; # be conservative, not sure how that can happen, but we saw a crash here	3146	or return; # be conservative, not sure how that can happen, but we saw a crash here
1722		3147
1723	(shift @$queue)->[1]->($msg);	3148	(shift @$queue)->[1]->($msg);
		3149	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1724		3150
1725	push @{ $ns->{query_queue} }, @$queue;	3151	push @{ $ns->{query_queue} }, @$queue;
1726		3152
1727	if (@{ $ns->{query_queue} } == @$queue) {	3153	if (@{ $ns->{query_queue} } == @$queue) {
1728	if (@$queue) {	3154	if (@$queue) {
…		…
1730	} else {	3156	} else {
1731	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3157	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1732	}	3158	}
1733	}	3159	}
1734	},	3160	},
		3161	on_exticmd => sub {
		3162	my ($ns, $buf) = @_;
		3163
		3164	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3165
		3166	if (ref $msg) {
		3167	my ($type, $reply, @payload) =
		3168	"ARRAY" eq ref $msg
		3169	? @$msg
		3170	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3171
		3172	my @reply;
		3173
		3174	if (my $cb = $EXTICMD{$type}) {
		3175	@reply = $cb->($ns, @payload);
		3176	}
		3177
		3178	$ns->ext_reply ($reply, @reply)
		3179	if $reply;
		3180
		3181	} else {
		3182	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3183	}
		3184
		3185	cf::override;
		3186	},
1735	);	3187	);
1736		3188
1737	=item $client->coro (\&cb)	3189	=item $client->async (\&cb)
1738		3190
1739	Create a new coroutine, running the specified callback. The coroutine will	3191	Create a new coroutine, running the specified callback. The coroutine will
1740	be automatically cancelled when the client gets destroyed (e.g. on logout,	3192	be automatically cancelled when the client gets destroyed (e.g. on logout,
1741	or loss of connection).	3193	or loss of connection).
1742		3194
1743	=cut	3195	=cut
1744		3196
1745	sub cf::client::coro {	3197	sub cf::client::async {
1746	my ($self, $cb) = @_;	3198	my ($self, $cb) = @_;
1747		3199
1748	my $coro = &cf::async ($cb);	3200	my $coro = &Coro::async ($cb);
1749		3201
1750	$coro->on_destroy (sub {	3202	$coro->on_destroy (sub {
1751	delete $self->{_coro}{$coro+0};	3203	delete $self->{_coro}{$coro+0};
1752	});	3204	});
1753		3205
…		…
1755		3207
1756	$coro	3208	$coro
1757	}	3209	}
1758		3210
1759	cf::client->attach (	3211	cf::client->attach (
1760	on_destroy => sub {	3212	on_client_destroy => sub {
1761	my ($ns) = @_;	3213	my ($ns) = @_;
1762		3214
1763	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3215	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1764	},	3216	},
1765	);	3217	);
…		…
1780	our $safe = new Safe "safe";	3232	our $safe = new Safe "safe";
1781	our $safe_hole = new Safe::Hole;	3233	our $safe_hole = new Safe::Hole;
1782		3234
1783	$SIG{FPE} = 'IGNORE';	3235	$SIG{FPE} = 'IGNORE';
1784		3236
1785	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3237	$safe->permit_only (Opcode::opset qw(
		3238	:base_core :base_mem :base_orig :base_math :base_loop
		3239	grepstart grepwhile mapstart mapwhile
		3240	sort time
		3241	));
1786		3242
1787	# here we export the classes and methods available to script code	3243	# here we export the classes and methods available to script code
1788		3244
1789	=pod	3245	=pod
1790		3246
1791	The following fucntions and emthods are available within a safe environment:	3247	The following functions and methods are available within a safe environment:
1792		3248
1793	cf::object contr pay_amount pay_player map	3249	cf::object
		3250	contr pay_amount pay_player map x y force_find force_add destroy
		3251	insert remove name archname title slaying race decrease split
		3252	value
		3253
1794	cf::object::player player	3254	cf::object::player
1795	cf::player peaceful	3255	player
1796	cf::map trigger	3256
		3257	cf::player
		3258	peaceful
		3259
		3260	cf::map
		3261	trigger
1797		3262
1798	=cut	3263	=cut
1799		3264
1800	for (	3265	for (
1801	["cf::object" => qw(contr pay_amount pay_player map)],	3266	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3267	insert remove inv nrof name archname title slaying race
		3268	decrease split destroy change_exp value msg lore send_msg)],
1802	["cf::object::player" => qw(player)],	3269	["cf::object::player" => qw(player)],
1803	["cf::player" => qw(peaceful)],	3270	["cf::player" => qw(peaceful send_msg)],
1804	["cf::map" => qw(trigger)],	3271	["cf::map" => qw(trigger)],
1805	) {	3272	) {
1806	no strict 'refs';	3273	no strict 'refs';
1807	my ($pkg, @funs) = @$_;	3274	my ($pkg, @funs) = @$_;
1808	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3275	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1826		3293
1827	my $qcode = $code;	3294	my $qcode = $code;
1828	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3295	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1829	$qcode =~ s/\n/\\n/g;	3296	$qcode =~ s/\n/\\n/g;
1830		3297
		3298	%vars = (_dummy => 0) unless %vars;
		3299
		3300	my @res;
1831	local $_;	3301	local $_;
1832	local @safe::cf::_safe_eval_args = values %vars;
1833		3302
1834	my $eval =	3303	my $eval =
1835	"do {\n"	3304	"do {\n"
1836	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3305	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1837	. "#line 0 \"{$qcode}\"\n"	3306	. "#line 0 \"{$qcode}\"\n"
1838	. $code	3307	. $code
1839	. "\n}"	3308	. "\n}"
1840	;	3309	;
1841		3310
		3311	if ($CFG{safe_eval}) {
1842	sub_generation_inc;	3312	sub_generation_inc;
		3313	local @safe::cf::_safe_eval_args = values %vars;
1843	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3314	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1844	sub_generation_inc;	3315	sub_generation_inc;
		3316	} else {
		3317	local @cf::_safe_eval_args = values %vars;
		3318	@res = wantarray ? eval eval : scalar eval $eval;
		3319	}
1845		3320
1846	if ($@) {	3321	if ($@) {
1847	warn "$@";	3322	warn "$@",
1848	warn "while executing safe code '$code'\n";	3323	"while executing safe code '$code'\n",
1849	warn "with arguments " . (join " ", %vars) . "\n";	3324	"with arguments " . (join " ", %vars) . "\n";
1850	}	3325	}
1851		3326
1852	wantarray ? @res : $res[0]	3327	wantarray ? @res : $res[0]
1853	}	3328	}
1854		3329
…		…
1868	=cut	3343	=cut
1869		3344
1870	sub register_script_function {	3345	sub register_script_function {
1871	my ($fun, $cb) = @_;	3346	my ($fun, $cb) = @_;
1872		3347
1873	no strict 'refs';	3348	$fun = "safe::$fun" if $CFG{safe_eval};
1874	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3349	*$fun = $safe_hole->wrap ($cb);
1875	}	3350	}
1876		3351
1877	=back	3352	=back
1878		3353
1879	=cut	3354	=cut
1880		3355
1881	#############################################################################	3356	#############################################################################
		3357	# the server's init and main functions
1882		3358
1883	=head2 EXTENSION DATABASE SUPPORT	3359	sub load_facedata($) {
		3360	my ($path) = @_;
1884		3361
1885	Crossfire maintains a very simple database for extension use. It can	3362	# HACK to clear player env face cache, we need some signal framework
1886	currently store anything that can be serialised using Storable, which	3363	# for this (global event?)
1887	excludes objects.	3364	%ext::player_env::MUSIC_FACE_CACHE = ();
1888		3365
1889	The parameter C<$family> should best start with the name of the extension	3366	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1890	using it, it should be unique.
1891		3367
1892	=over 4	3368	trace "loading facedata from $path\n";
1893		3369
1894	=item $hashref = cf::db_get $family	3370	my $facedata;
		3371	0 < aio_load $path, $facedata
		3372	or die "$path: $!";
1895		3373
1896	Return a hashref for use by the extension C<$family>, which can be	3374	$facedata = Coro::Storable::thaw $facedata;
1897	modified. After modifications, you have to call C<cf::db_dirty> or
1898	C<cf::db_sync>.
1899		3375
1900	=item $value = cf::db_get $family => $key	3376	$facedata->{version} == 2
		3377	or cf::cleanup "$path: version mismatch, cannot proceed.";
1901		3378
1902	Returns a single value from the database	3379	# patch in the exptable
1903		3380	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1904	=item cf::db_put $family => $hashref	3381	$facedata->{resource}{"res/exp_table"} = {
1905		3382	type => FT_RSRC,
1906	Stores the given family hashref into the database. Updates are delayed, if	3383	data => $exp_table,
1907	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3384	hash => (Digest::MD5::md5 $exp_table),
1908
1909	=item cf::db_put $family => $key => $value
1910
1911	Stores the given C<$value> in the family hash. Updates are delayed, if you
1912	want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_dirty
1915
1916	Marks the database as dirty, to be updated at a later time.
1917
1918	=item cf::db_sync
1919
1920	Immediately write the database to disk I<if it is dirty>.
1921
1922	=cut
1923
1924	our $DB;
1925
1926	{
1927	my $path = cf::localdir . "/database.pst";
1928
1929	sub db_load() {
1930	$DB = stat $path ? Storable::retrieve $path : { };
1931	}
1932
1933	my $pid;
1934
1935	sub db_save() {
1936	waitpid $pid, 0 if $pid;
1937	if (0 == ($pid = fork)) {
1938	$DB->{_meta}{version} = 1;
1939	Storable::nstore $DB, "$path~";
1940	rename "$path~", $path;
1941	cf::_exit 0 if defined $pid;
1942	}
1943	}
1944
1945	my $dirty;
1946
1947	sub db_sync() {
1948	db_save if $dirty;
1949	undef $dirty;
1950	}
1951
1952	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1953	db_sync;
1954	});	3385	};
		3386	cf::cede_to_tick;
1955		3387
1956	sub db_dirty() {
1957	$dirty = 1;
1958	$idle->start;
1959	}	3388	{
		3389	my $faces = $facedata->{faceinfo};
1960		3390
1961	sub db_get($;$) {	3391	while (my ($face, $info) = each %$faces) {
1962	@_ >= 2	3392	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1963	? $DB->{$_[0]}{$_[1]}
1964	: ($DB->{$_[0]} ||= { })
1965	}
1966		3393
1967	sub db_put($$;$) {	3394	cf::face::set_visibility $idx, $info->{visibility};
1968	if (@_ >= 3) {	3395	cf::face::set_magicmap $idx, $info->{magicmap};
1969	$DB->{$_[0]}{$_[1]} = $_[2];	3396	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1970	} else {	3397	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1971	$DB->{$_[0]} = $_[1];
1972	}
1973	db_dirty;
1974	}
1975		3398
1976	cf::global->attach (	3399	cf::cede_to_tick;
1977	prio => 10000,
1978	on_cleanup => sub {
1979	db_sync;
1980	},	3400	}
1981	);
1982	}
1983		3401
1984	#############################################################################	3402	while (my ($face, $info) = each %$faces) {
1985	# the server's main()	3403	next unless $info->{smooth};
1986		3404
1987	sub cfg_load {	3405	my $idx = cf::face::find $face
		3406	or next;
		3407
		3408	if (my $smooth = cf::face::find $info->{smooth}) {
		3409	cf::face::set_smooth $idx, $smooth;
		3410	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3411	} else {
		3412	error "smooth face '$info->{smooth}' not found for face '$face'";
		3413	}
		3414
		3415	cf::cede_to_tick;
		3416	}
		3417	}
		3418
		3419	{
		3420	my $anims = $facedata->{animinfo};
		3421
		3422	while (my ($anim, $info) = each %$anims) {
		3423	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3424	cf::cede_to_tick;
		3425	}
		3426
		3427	cf::anim::invalidate_all; # d'oh
		3428	}
		3429
		3430	{
		3431	my $res = $facedata->{resource};
		3432
		3433	while (my ($name, $info) = each %$res) {
		3434	if (defined $info->{type}) {
		3435	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3436
		3437	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3438	cf::face::set_type $idx, $info->{type};
		3439	} else {
		3440	$RESOURCE{$name} = $info; # unused
		3441	}
		3442
		3443	cf::cede_to_tick;
		3444	}
		3445	}
		3446
		3447	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3448
		3449	1
		3450	}
		3451
		3452	register_exticmd fx_want => sub {
		3453	my ($ns, $want) = @_;
		3454
		3455	while (my ($k, $v) = each %$want) {
		3456	$ns->fx_want ($k, $v);
		3457	}
		3458	};
		3459
		3460	sub load_resource_file($) {
		3461	my $guard = lock_acquire "load_resource_file";
		3462
		3463	my $status = load_resource_file_ $_[0];
		3464	get_slot 0.1, 100;
		3465	cf::arch::commit_load;
		3466
		3467	$status
		3468	}
		3469
		3470	sub reload_regions {
		3471	# HACK to clear player env face cache, we need some signal framework
		3472	# for this (global event?)
		3473	%ext::player_env::MUSIC_FACE_CACHE = ();
		3474
		3475	load_resource_file "$MAPDIR/regions"
		3476	or die "unable to load regions file\n";
		3477
		3478	for (cf::region::list) {
		3479	$_->{match} = qr/$_->{match}/
		3480	if exists $_->{match};
		3481	}
		3482	}
		3483
		3484	sub reload_facedata {
		3485	load_facedata "$DATADIR/facedata"
		3486	or die "unable to load facedata\n";
		3487	}
		3488
		3489	sub reload_archetypes {
		3490	load_resource_file "$DATADIR/archetypes"
		3491	or die "unable to load archetypes\n";
		3492	}
		3493
		3494	sub reload_treasures {
		3495	load_resource_file "$DATADIR/treasures"
		3496	or die "unable to load treasurelists\n";
		3497	}
		3498
		3499	sub reload_sound {
		3500	trace "loading sound config from $DATADIR/sound\n";
		3501
		3502	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3503	or die "$DATADIR/sound $!";
		3504
		3505	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3506
		3507	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3508	my $sound = $soundconf->{compat}[$_]
		3509	or next;
		3510
		3511	my $face = cf::face::find "sound/$sound->[1]";
		3512	cf::sound::set $sound->[0] => $face;
		3513	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3514	}
		3515
		3516	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3517	my $face = cf::face::find "sound/$v";
		3518	cf::sound::set $k => $face;
		3519	}
		3520	}
		3521
		3522	sub reload_resources {
		3523	trace "reloading resource files...\n";
		3524
		3525	reload_facedata;
		3526	reload_sound;
		3527	reload_archetypes;
		3528	reload_regions;
		3529	reload_treasures;
		3530
		3531	trace "finished reloading resource files\n";
		3532	}
		3533
		3534	sub reload_config {
		3535	trace "reloading config file...\n";
		3536
1988	open my $fh, "<:utf8", cf::confdir . "/config"	3537	open my $fh, "<:utf8", "$CONFDIR/config"
1989	or return;	3538	or return;
1990		3539
1991	local $/;	3540	local $/;
1992	*CFG = YAML::Syck::Load <$fh>;	3541	*CFG = YAML::XS::Load scalar <$fh>;
		3542
		3543	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3544
		3545	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3546	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3547
		3548	if (exists $CFG{mlockall}) {
		3549	eval {
		3550	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3551	and die "WARNING: m(un)lockall failed: $!\n";
		3552	};
		3553	warn $@ if $@;
		3554	}
		3555
		3556	trace "finished reloading resource files\n";
		3557	}
		3558
		3559	sub pidfile() {
		3560	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3561	or die "$PIDFILE: $!";
		3562	flock $fh, &Fcntl::LOCK_EX
		3563	or die "$PIDFILE: flock: $!";
		3564	$fh
		3565	}
		3566
		3567	# make sure only one server instance is running at any one time
		3568	sub atomic {
		3569	my $fh = pidfile;
		3570
		3571	my $pid = <$fh>;
		3572	kill 9, $pid if $pid > 0;
		3573
		3574	seek $fh, 0, 0;
		3575	print $fh $$;
		3576	}
		3577
		3578	sub main_loop {
		3579	trace "EV::loop starting\n";
		3580	if (1) {
		3581	EV::loop;
		3582	}
		3583	trace "EV::loop returned\n";
		3584	goto &main_loop unless $REALLY_UNLOOP;
1993	}	3585	}
1994		3586
1995	sub main {	3587	sub main {
		3588	cf::init_globals; # initialise logging
		3589
		3590	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3591	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3592	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3593	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3594
		3595	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3596
1996	# we must not ever block the main coroutine	3597	# we must not ever block the main coroutine
1997	local $Coro::idle = sub {	3598	local $Coro::idle = sub {
1998	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3599	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1999	(Coro::unblock_sub {	3600	(async {
2000	Event::one_event;	3601	$Coro::current->{desc} = "IDLE BUG HANDLER";
2001	})->();	3602	EV::loop EV::LOOP_ONESHOT;
		3603	})->prio (Coro::PRIO_MAX);
2002	};	3604	};
2003		3605
2004	cfg_load;	3606	evthread_start IO::AIO::poll_fileno;
2005	db_load;	3607
		3608	cf::sync_job {
		3609	cf::init_experience;
		3610	cf::init_anim;
		3611	cf::init_attackmess;
		3612	cf::init_dynamic;
		3613
		3614	cf::load_settings;
		3615	cf::load_materials;
		3616
		3617	reload_resources;
		3618	reload_config;
		3619	db_init;
		3620
		3621	cf::init_uuid;
		3622	cf::init_signals;
		3623	cf::init_skills;
		3624
		3625	cf::init_beforeplay;
		3626
		3627	atomic;
		3628
2006	load_extensions;	3629	load_extensions;
2007	Event::loop;	3630
		3631	utime time, time, $RUNTIMEFILE;
		3632
		3633	# no (long-running) fork's whatsoever before this point(!)
		3634	use POSIX ();
		3635	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3636
		3637	(pop @POST_INIT)->(0) while @POST_INIT;
		3638	};
		3639
		3640	cf::object::thawer::errors_are_fatal 0;
		3641	info "parse errors in files are no longer fatal from this point on.\n";
		3642
		3643	main_loop;
2008	}	3644	}
2009		3645
2010	#############################################################################	3646	#############################################################################
2011	# initialisation	3647	# initialisation and cleanup
2012		3648
		3649	# install some emergency cleanup handlers
		3650	BEGIN {
		3651	our %SIGWATCHER = ();
		3652	for my $signal (qw(INT HUP TERM)) {
		3653	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3654	cf::cleanup "SIG$signal";
		3655	};
		3656	}
		3657	}
		3658
		3659	sub write_runtime_sync {
		3660	my $t0 = AE::time;
		3661
		3662	# first touch the runtime file to show we are still running:
		3663	# the fsync below can take a very very long time.
		3664
		3665	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3666
		3667	my $guard = cf::lock_acquire "write_runtime";
		3668
		3669	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3670	or return;
		3671
		3672	my $value = $cf::RUNTIME + 90 + 10;
		3673	# 10 is the runtime save interval, for a monotonic clock
		3674	# 60 allows for the watchdog to kill the server.
		3675
		3676	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3677	and return;
		3678
		3679	# always fsync - this file is important
		3680	aio_fsync $fh
		3681	and return;
		3682
		3683	# touch it again to show we are up-to-date
		3684	aio_utime $fh, undef, undef;
		3685
		3686	close $fh
		3687	or return;
		3688
		3689	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3690	and return;
		3691
		3692	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3693
		3694	1
		3695	}
		3696
		3697	our $uuid_lock;
		3698	our $uuid_skip;
		3699
		3700	sub write_uuid_sync($) {
		3701	$uuid_skip ||= $_[0];
		3702
		3703	return if $uuid_lock;
		3704	local $uuid_lock = 1;
		3705
		3706	my $uuid = "$LOCALDIR/uuid";
		3707
		3708	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3709	or return;
		3710
		3711	my $value = uuid_seq uuid_cur;
		3712
		3713	unless ($value) {
		3714	info "cowardly refusing to write zero uuid value!\n";
		3715	return;
		3716	}
		3717
		3718	my $value = uuid_str $value + $uuid_skip;
		3719	$uuid_skip = 0;
		3720
		3721	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3722	and return;
		3723
		3724	# always fsync - this file is important
		3725	aio_fsync $fh
		3726	and return;
		3727
		3728	close $fh
		3729	or return;
		3730
		3731	aio_rename "$uuid~", $uuid
		3732	and return;
		3733
		3734	trace "uuid file written ($value).\n";
		3735
		3736	1
		3737
		3738	}
		3739
		3740	sub write_uuid($$) {
		3741	my ($skip, $sync) = @_;
		3742
		3743	$sync ? write_uuid_sync $skip
		3744	: async { write_uuid_sync $skip };
		3745	}
		3746
		3747	sub emergency_save() {
		3748	my $freeze_guard = cf::freeze_mainloop;
		3749
		3750	info "emergency_perl_save: enter\n";
		3751
		3752	cf::sync_job {
		3753	# this is a trade-off: we want to be very quick here, so
		3754	# save all maps without fsync, and later call a global sync
		3755	# (which in turn might be very very slow)
		3756	local $USE_FSYNC = 0;
		3757
		3758	# use a peculiar iteration method to avoid tripping on perl
		3759	# refcount bugs in for. also avoids problems with players
		3760	# and maps saved/destroyed asynchronously.
		3761	info "emergency_perl_save: begin player save\n";
		3762	for my $login (keys %cf::PLAYER) {
		3763	my $pl = $cf::PLAYER{$login} or next;
		3764	$pl->valid or next;
		3765	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3766	$pl->save;
		3767	}
		3768	info "emergency_perl_save: end player save\n";
		3769
		3770	info "emergency_perl_save: begin map save\n";
		3771	for my $path (keys %cf::MAP) {
		3772	my $map = $cf::MAP{$path} or next;
		3773	$map->valid or next;
		3774	$map->save;
		3775	}
		3776	info "emergency_perl_save: end map save\n";
		3777
		3778	info "emergency_perl_save: begin database checkpoint\n";
		3779	BDB::db_env_txn_checkpoint $DB_ENV;
		3780	info "emergency_perl_save: end database checkpoint\n";
		3781
		3782	info "emergency_perl_save: begin write uuid\n";
		3783	write_uuid_sync 1;
		3784	info "emergency_perl_save: end write uuid\n";
		3785	};
		3786
		3787	info "emergency_perl_save: starting sync()\n";
		3788	IO::AIO::aio_sync sub {
		3789	info "emergency_perl_save: finished sync()\n";
		3790	};
		3791
		3792	info "emergency_perl_save: leave\n";
		3793	}
		3794
		3795	sub post_cleanup {
		3796	my ($make_core) = @_;
		3797
		3798	error Carp::longmess "post_cleanup backtrace"
		3799	if $make_core;
		3800
		3801	my $fh = pidfile;
		3802	unlink $PIDFILE if <$fh> == $$;
		3803	}
		3804
		3805	# a safer delete_package, copied from Symbol
		3806	sub clear_package($) {
		3807	my $pkg = shift;
		3808
		3809	# expand to full symbol table name if needed
		3810	unless ($pkg =~ /^main::.*::$/) {
		3811	$pkg = "main$pkg" if $pkg =~ /^::/;
		3812	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3813	$pkg .= '::' unless $pkg =~ /::$/;
		3814	}
		3815
		3816	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3817	my $stem_symtab = *{$stem}{HASH};
		3818
		3819	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3820	or return;
		3821
		3822	# clear all symbols
		3823	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3824	for my $name (keys %$leaf_symtab) {
		3825	_gv_clear *{"$pkg$name"};
		3826	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3827	}
		3828	}
		3829
2013	sub reload() {	3830	sub do_reload_perl() {
2014	# can/must only be called in main	3831	# can/must only be called in main
2015	if ($Coro::current != $Coro::main) {	3832	if (in_main) {
2016	warn "can only reload from main coroutine\n";	3833	error "can only reload from main coroutine";
2017	return;	3834	return;
2018	}	3835	}
2019		3836
		3837	return if $RELOAD++;
		3838
		3839	my $t1 = AE::time;
		3840
		3841	while ($RELOAD) {
2020	warn "reloading...";	3842	info "reloading...";
2021		3843
2022	local $FREEZE = 1;	3844	trace "entering sync_job";
		3845
		3846	cf::sync_job {
		3847	cf::write_runtime_sync; # external watchdog should not bark
2023	cf::emergency_save;	3848	cf::emergency_save;
		3849	cf::write_runtime_sync; # external watchdog should not bark
2024		3850
2025	eval {	3851	trace "syncing database to disk";
		3852	BDB::db_env_txn_checkpoint $DB_ENV;
		3853
2026	# if anything goes wrong in here, we should simply crash as we already saved	3854	# if anything goes wrong in here, we should simply crash as we already saved
2027		3855
2028	# cancel all watchers	3856	trace "flushing outstanding aio requests";
2029	for (Event::all_watchers) {	3857	while (IO::AIO::nreqs || BDB::nreqs) {
2030	$_->cancel if $_->data & WF_AUTOCANCEL;	3858	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2031	}
2032
2033	# cancel all extension coros
2034	$_->cancel for values %EXT_CORO;
2035	%EXT_CORO = ();
2036
2037	# unload all extensions
2038	for (@exts) {
2039	warn "unloading <$_>";
2040	unload_extension $_;
2041	}
2042
2043	# unload all modules loaded from $LIBDIR
2044	while (my ($k, $v) = each %INC) {
2045	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2046
2047	warn "removing <$k>";
2048	delete $INC{$k};
2049
2050	$k =~ s/\.pm$//;
2051	$k =~ s/\//::/g;
2052
2053	if (my $cb = $k->can ("unload_module")) {
2054	$cb->();
2055	}	3859	}
2056		3860
2057	Symbol::delete_package $k;	3861	trace "cancelling all extension coros";
		3862	$_->cancel for values %EXT_CORO;
		3863	%EXT_CORO = ();
		3864
		3865	trace "removing commands";
		3866	%COMMAND = ();
		3867
		3868	trace "removing ext/exti commands";
		3869	%EXTCMD = ();
		3870	%EXTICMD = ();
		3871
		3872	trace "unloading/nuking all extensions";
		3873	for my $pkg (@EXTS) {
		3874	trace "... unloading $pkg";
		3875
		3876	if (my $cb = $pkg->can ("unload")) {
		3877	eval {
		3878	$cb->($pkg);
		3879	1
		3880	} or error "$pkg unloaded, but with errors: $@";
		3881	}
		3882
		3883	trace "... clearing $pkg";
		3884	clear_package $pkg;
2058	}	3885	}
2059		3886
2060	# sync database to disk	3887	trace "unloading all perl modules loaded from $LIBDIR";
2061	cf::db_sync;	3888	while (my ($k, $v) = each %INC) {
2062	IO::AIO::flush;	3889	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2063		3890
		3891	trace "... unloading $k";
		3892	delete $INC{$k};
		3893
		3894	$k =~ s/\.pm$//;
		3895	$k =~ s/\//::/g;
		3896
		3897	if (my $cb = $k->can ("unload_module")) {
		3898	$cb->();
		3899	}
		3900
		3901	clear_package $k;
		3902	}
		3903
2064	# get rid of safe::, as good as possible	3904	trace "getting rid of safe::, as good as possible";
2065	Symbol::delete_package "safe::$_"	3905	clear_package "safe::$_"
2066	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3906	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2067		3907
2068	# remove register_script_function callbacks	3908	trace "unloading cf.pm \"a bit\"";
2069	# TODO
2070
2071	# unload cf.pm "a bit"
2072	delete $INC{"cf.pm"};	3909	delete $INC{"cf.pm"};
		3910	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2073		3911
2074	# don't, removes xs symbols, too,	3912	# don't, removes xs symbols, too,
2075	# and global variables created in xs	3913	# and global variables created in xs
2076	#Symbol::delete_package __PACKAGE__;	3914	#clear_package __PACKAGE__;
2077		3915
2078	# reload cf.pm	3916	info "unload completed, starting to reload now";
		3917
2079	warn "reloading cf.pm";	3918	trace "reloading cf.pm";
2080	require cf;	3919	require cf;
2081	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3920	cf::_connect_to_perl_1;
2082		3921
2083	# load config and database again	3922	trace "loading config and database again";
2084	cf::cfg_load;	3923	cf::reload_config;
2085	cf::db_load;
2086		3924
2087	# load extensions
2088	warn "load extensions";	3925	trace "loading extensions";
2089	cf::load_extensions;	3926	cf::load_extensions;
2090		3927
2091	# reattach attachments to objects	3928	if ($REATTACH_ON_RELOAD) {
2092	warn "reattach";	3929	trace "reattaching attachments to objects/players";
2093	_global_reattach;	3930	_global_reattach; # objects, sockets
		3931	trace "reattaching attachments to maps";
		3932	reattach $_ for values %MAP;
		3933	trace "reattaching attachments to players";
		3934	reattach $_ for values %PLAYER;
		3935	}
		3936
		3937	trace "running post_init jobs";
		3938	(pop @POST_INIT)->(1) while @POST_INIT;
		3939
		3940	trace "leaving sync_job";
		3941
		3942	1
		3943	} or do {
		3944	error $@;
		3945	cf::cleanup "error while reloading, exiting.";
		3946	};
		3947
		3948	info "reloaded";
		3949	--$RELOAD;
		3950	}
		3951
		3952	$t1 = AE::time - $t1;
		3953	info "reload completed in ${t1}s\n";
		3954	};
		3955
		3956	our $RELOAD_WATCHER; # used only during reload
		3957
		3958	sub reload_perl() {
		3959	# doing reload synchronously and two reloads happen back-to-back,
		3960	# coro crashes during coro_state_free->destroy here.
		3961
		3962	$RELOAD_WATCHER ||= cf::async {
		3963	Coro::AIO::aio_wait cache_extensions;
		3964
		3965	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3966	do_reload_perl;
		3967	undef $RELOAD_WATCHER;
		3968	};
2094	};	3969	};
2095
2096	if ($@) {
2097	warn $@;
2098	warn "error while reloading, exiting.";
2099	exit 1;
2100	}
2101
2102	warn "reloaded successfully";
2103	};
2104
2105	#############################################################################
2106
2107	unless ($LINK_MAP) {
2108	$LINK_MAP = cf::map::new;
2109
2110	$LINK_MAP->width (41);
2111	$LINK_MAP->height (41);
2112	$LINK_MAP->alloc;
2113	$LINK_MAP->path ("{link}");
2114	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2115	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2116
2117	# dirty hack because... archetypes are not yet loaded
2118	Event->timer (
2119	after => 2,
2120	cb => sub {
2121	$_[0]->w->cancel;
2122
2123	# provide some exits "home"
2124	my $exit = cf::object::new "exit";
2125
2126	$exit->slaying ($EMERGENCY_POSITION->[0]);
2127	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2128	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2129
2130	$LINK_MAP->insert ($exit->clone, 19, 19);
2131	$LINK_MAP->insert ($exit->clone, 19, 20);
2132	$LINK_MAP->insert ($exit->clone, 19, 21);
2133	$LINK_MAP->insert ($exit->clone, 20, 19);
2134	$LINK_MAP->insert ($exit->clone, 20, 21);
2135	$LINK_MAP->insert ($exit->clone, 21, 19);
2136	$LINK_MAP->insert ($exit->clone, 21, 20);
2137	$LINK_MAP->insert ($exit->clone, 21, 21);
2138
2139	$exit->destroy;
2140	});
2141
2142	$LINK_MAP->{deny_save} = 1;
2143	$LINK_MAP->{deny_reset} = 1;
2144
2145	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2146	}	3970	}
2147
2148	register "<global>", __PACKAGE__;
2149		3971
2150	register_command "reload" => sub {	3972	register_command "reload" => sub {
2151	my ($who, $arg) = @_;	3973	my ($who, $arg) = @_;
2152		3974
2153	if ($who->flag (FLAG_WIZ)) {	3975	if ($who->flag (FLAG_WIZ)) {
2154	$who->message ("start of reload.");
2155	reload;
2156	$who->message ("end of reload.");	3976	$who->message ("reloading server.");
		3977	async {
		3978	$Coro::current->{desc} = "perl_reload";
		3979	reload_perl;
		3980	};
2157	}	3981	}
2158	};	3982	};
2159		3983
2160	unshift @INC, $LIBDIR;	3984	unshift @INC, $LIBDIR;
2161		3985
2162	$TICK_WATCHER = Event->timer (	3986	my $bug_warning = 0;
2163	reentrant => 0,	3987
2164	prio => 0,	3988	our @WAIT_FOR_TICK;
2165	at => $NEXT_TICK || $TICK,	3989	our @WAIT_FOR_TICK_BEGIN;
2166	data => WF_AUTOCANCEL,	3990
2167	cb => sub {	3991	sub wait_for_tick {
2168	unless ($FREEZE) {	3992	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3993
		3994	my $signal = new Coro::Signal;
		3995	push @WAIT_FOR_TICK, $signal;
		3996	$signal->wait;
		3997	}
		3998
		3999	sub wait_for_tick_begin {
		4000	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4001
		4002	my $signal = new Coro::Signal;
		4003	push @WAIT_FOR_TICK_BEGIN, $signal;
		4004	$signal->wait;
		4005	}
		4006
		4007	sub tick {
		4008	if ($Coro::current != $Coro::main) {
		4009	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4010	unless ++$bug_warning > 10;
		4011	return;
		4012	}
		4013
2169	cf::server_tick; # one server iteration	4014	cf::server_tick; # one server iteration
2170	$RUNTIME += $TICK;
2171	}
2172		4015
2173	$NEXT_TICK += $TICK;	4016	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2174		4017
2175	# if we are delayed by four ticks or more, skip them all	4018	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2176	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4019	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2177		4020	Coro::async_pool {
2178	$TICK_WATCHER->at ($NEXT_TICK);	4021	$Coro::current->{desc} = "runtime saver";
2179	$TICK_WATCHER->start;
2180	},
2181	);
2182
2183	IO::AIO::max_poll_time $TICK * 0.2;
2184
2185	Event->io (
2186	fd => IO::AIO::poll_fileno,
2187	poll => 'r',
2188	prio => 5,
2189	data => WF_AUTOCANCEL,
2190	cb => \&IO::AIO::poll_cb,
2191	);
2192
2193	Event->timer (
2194	data => WF_AUTOCANCEL,
2195	after => 0,
2196	interval => 10,
2197	cb => sub {
2198	(Coro::unblock_sub {
2199	write_runtime	4022	write_runtime_sync
2200	or warn "ERROR: unable to write runtime file: $!";	4023	or error "ERROR: unable to write runtime file: $!";
2201	})->();	4024	};
2202	},	4025	}
2203	);	4026
		4027	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4028	$sig->send;
		4029	}
		4030	while (my $sig = shift @WAIT_FOR_TICK) {
		4031	$sig->send;
		4032	}
		4033
		4034	$LOAD = ($NOW - $TICK_START) / $TICK;
		4035	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4036
		4037	if (0) {
		4038	if ($NEXT_TICK) {
		4039	my $jitter = $TICK_START - $NEXT_TICK;
		4040	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4041	debug "jitter $JITTER\n";#d#
		4042	}
		4043	}
		4044	}
		4045
		4046	{
		4047	# configure BDB
		4048
		4049	BDB::min_parallel 16;
		4050	BDB::max_poll_reqs $TICK * 0.1;
		4051	$AnyEvent::BDB::WATCHER->priority (1);
		4052
		4053	unless ($DB_ENV) {
		4054	$DB_ENV = BDB::db_env_create;
		4055	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4056	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4057	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4058	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4059	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4060
		4061	cf::sync_job {
		4062	eval {
		4063	BDB::db_env_open
		4064	$DB_ENV,
		4065	$BDBDIR,
		4066	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4067	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4068	0666;
		4069
		4070	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4071	};
		4072
		4073	cf::cleanup "db_env_open(db): $@" if $@;
		4074	};
		4075	}
		4076
		4077	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4078	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4079	};
		4080	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4081	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4082	};
		4083	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4084	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4085	};
		4086	}
		4087
		4088	{
		4089	# configure IO::AIO
		4090
		4091	IO::AIO::min_parallel 8;
		4092	IO::AIO::max_poll_time $TICK * 0.1;
		4093	undef $AnyEvent::AIO::WATCHER;
		4094	}
		4095
		4096	my $_log_backtrace;
		4097
		4098	sub _log_backtrace {
		4099	my ($msg, @addr) = @_;
		4100
		4101	$msg =~ s/\n//;
		4102
		4103	# limit the # of concurrent backtraces
		4104	if ($_log_backtrace < 2) {
		4105	++$_log_backtrace;
		4106	my $perl_bt = Carp::longmess $msg;
		4107	async {
		4108	$Coro::current->{desc} = "abt $msg";
		4109
		4110	my @bt = fork_call {
		4111	@addr = map { sprintf "%x", $_ } @addr;
		4112	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4113	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4114	or die "addr2line: $!";
		4115
		4116	my @funcs;
		4117	my @res = <$fh>;
		4118	chomp for @res;
		4119	while (@res) {
		4120	my ($func, $line) = splice @res, 0, 2, ();
		4121	push @funcs, "[$func] $line";
		4122	}
		4123
		4124	@funcs
		4125	};
		4126
		4127	LOG llevInfo, "[ABT] $perl_bt\n";
		4128	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4129	LOG llevInfo, "[ABT] $_\n" for @bt;
		4130	--$_log_backtrace;
		4131	};
		4132	} else {
		4133	LOG llevInfo, "[ABT] $msg\n";
		4134	LOG llevInfo, "[ABT] [suppressed]\n";
		4135	}
		4136	}
		4137
		4138	# load additional modules
		4139	require "cf/$_.pm" for @EXTRA_MODULES;
		4140	cf::_connect_to_perl_2;
2204		4141
2205	END { cf::emergency_save }	4142	END { cf::emergency_save }
2206		4143
2207	1	4144	1
2208		4145

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