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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.226 by root, Wed Mar 14 04:12:29 2007 UTC vs.
Revision 1.503 by root, Sat Jan 30 23:46:39 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 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;
9	use Event;	32	use EV;
10	use Opcode;	33	use Opcode;
11	use Safe;	34	use Safe;
12	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
13		38
		39	use Guard ();
14	use Coro 3.52 ();	40	use Coro ();
15	use Coro::State;	41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
16	use Coro::Event;	44	use Coro::AnyEvent;
17	use Coro::Timer;	45	use Coro::Timer;
18	use Coro::Signal;	46	use Coro::Signal;
19	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
20	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
21		54
		55	use JSON::XS 2.01 ();
22	use BDB ();	56	use BDB ();
23	use Data::Dumper;	57	use Data::Dumper;
24	use Digest::MD5;
25	use Fcntl;	58	use Fcntl;
26	use IO::AIO 2.32 ();
27	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
28	use Time::HiRes;	61	use Time::HiRes;
29	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
30		64
		65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
31	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		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";
32	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
33	$Event::Eval = 1; # no idea why this is required, but it is	77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
34		80
35	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
36
37	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
38	$YAML::Syck::ImplicitUnicode = 1;
39
40	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
41		82
42	our %COMMAND = ();	83	our %COMMAND = ();
43	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
44		85
45	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
46	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
47	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
48	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
49		91
50	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
51	our @EVENT;	93	our @EVENT;
52	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
53		96
54	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
55	our $TICK_WATCHER;	98	our $DATADIR = datadir;
56	our $AIO_POLL_WATCHER;	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;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
57	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
58	our $NEXT_TICK;	115	our $NEXT_TICK;
59	our $NOW;
60	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
61		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
62	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
63	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
64		124
65	our %CFG;	125	our %CFG;
66		126
67	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
68	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
69		130
70	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
71	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
72	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
73	our $RANDOM_MAPS = cf::localdir . "/random";
74	our $BDB_ENV_DIR = cf::localdir . "/db";
75
76	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
77	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
78		134
79	# used to convert map paths into valid unix filenames by replacing / by ∕	135	# used to convert map paths into valid unix filenames by replacing / by ∕
80	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
81		137
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
		147
82	binmode STDOUT;	148	binmode STDOUT;
83	binmode STDERR;	149	binmode STDERR;
84		150
85	# read virtual server time, if available	151	# read virtual server time, if available
86	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
87	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
88	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
89	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
90	}	156	}
91		157
92	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
93	mkdir cf::localdir . "/" . cf::playerdir;	159
94	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
95	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
96	mkdir $RANDOM_MAPS;
97	mkdir $BDB_ENV_DIR;
98		162
99	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
100		164
101	sub cf::map::normalise;	165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
102		177
103	#############################################################################	178	#############################################################################
104		179
105	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
106		181
…		…
113	=item $cf::RUNTIME	188	=item $cf::RUNTIME
114		189
115	The time this server has run, starts at 0 and is increased by $cf::TICK on	190	The time this server has run, starts at 0 and is increased by $cf::TICK on
116	every server tick.	191	every server tick.
117		192
118	=item $cf::LIBDIR	193	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		194	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		195	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
119		196
120	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
121	be found. It will be added to C<@INC> automatically.	198	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		199	unique-items directory, player file directory, random maps directory and
		200	database environment.
122		201
123	=item $cf::NOW	202	=item $cf::NOW
124		203
125	The time of the last (current) server tick.	204	The time of the last (current) server tick.
126		205
127	=item $cf::TICK	206	=item $cf::TICK
128		207
129	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
130		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
131	=item %cf::CFG	220	=item %cf::CFG
132		221
133	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
134	from wherever your confdir points to.	223	from wherever your confdir points to.
135		224
136	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
137		226
138	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
139	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	228	returns directly I<after> the tick processing (and consequently, can only wake one process
140	processing has been done. Call C<< ->wait >> on them to maximise the	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
141	window of cpu time available, or simply to synchronise to the server tick.	230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
142		242
143	=back	243	=back
144		244
145	=cut	245	=cut
146		246
147	BEGIN {	247	$Coro::State::WARNHOOK = sub {
148	*CORE::GLOBAL::warn = sub {
149	my $msg = join "", @_;	248	my $msg = join "", @_;
150	utf8::encode $msg;
151		249
152	$msg .= "\n"	250	$msg .= "\n"
153	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
154		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
155	LOG llevError, $msg;	255	LOG llevError, $msg;
156	};	256	};
157	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
158		271
159	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
160	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
161	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
162	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
163	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
164	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
165		279
166	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
167	# within the Safe compartment.	281	# within the Safe compartment.
168	for my $pkg (qw(	282	for my $pkg (qw(
169	cf::global cf::attachable	283	cf::global cf::attachable
170	cf::object cf::object::player	284	cf::object cf::object::player
171	cf::client cf::player	285	cf::client cf::player
172	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
173	cf::map cf::party cf::region	288	cf::party cf::region
174	)) {	289	)) {
175	no strict 'refs';
176	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
177	}	291	}
178		292
179	$Event::DIED = sub {	293	$EV::DIED = sub {
180	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
181	};	295	};
		296
		297	#############################################################################
182		298
183	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
184		300
185	=over 4	301	=over 4
186		302
…		…
205	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
206	$d	322	$d
207	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
208	}	324	}
209		325
210	use JSON::Syck (); # TODO# replace by JSON::PC once working
211
212	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
213		327
214	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
215		329
216	=cut
217
218	sub from_json($) {
219	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
220	JSON::Syck::Load $_[0]
221	}
222
223	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
224		331
225	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
226		333
227	=cut	334	=cut
228		335
229	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
230	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	337
231	JSON::Syck::Dump $_[0]	338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
232	}	353	}
233		354
234	=item cf::lock_wait $string	355	=item cf::lock_wait $string
235		356
236	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
237		358
238	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
239		360
240	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
242	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
243	returned.	364	returned.
244		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
245	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
247		371
248	=cut	372	=item $locked = cf::lock_active $string
249		373
250	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
251		379
252	sub lock_wait($) {	380	sub lock_wait($) {
253	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
254
255	# wait for lock, if any
256	while ($LOCK{$key}) {
257	push @{ $LOCK{$key} }, $Coro::current;
258	Coro::schedule;
259	}
260	}	382	}
261		383
262	sub lock_acquire($) {	384	sub lock_acquire($) {
263	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
264		387
265	# wait, to be sure we are not locked	388	sub lock_active($) {
266	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
267
268	$LOCK{$key} = [];
269
270	Coro::guard {
271	# wake up all waiters, to be on the safe side
272	$_->ready for @{ delete $LOCK{$key} };
273	}
274	}	390	}
275		391
276	sub freeze_mainloop {	392	sub freeze_mainloop {
277	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
278		394
279	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
280	$TICK_WATCHER->start;	396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428	our $SLOT_DECAY = 0.9;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435	my $busy;
		436
		437	while () {
		438	next_job:
		439
		440	my $avail = cf::till_tick;
		441
		442	for (0 .. $#SLOT_QUEUE) {
		443	if ($SLOT_QUEUE[$_][0] <= $avail) {
		444	$busy = 0;
		445	my $job = splice @SLOT_QUEUE, $_, 1, ();
		446	$job->[2]->send;
		447	Coro::cede;
		448	goto next_job;
		449	} else {
		450	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		451	}
		452	}
		453
		454	if (@SLOT_QUEUE) {
		455	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		456	push @cf::WAIT_FOR_TICK, $signal;
		457	$signal->wait;
		458	} else {
		459	$busy = 0;
		460	Coro::schedule;
		461	}
281	};	462	}
282	$TICK_WATCHER->stop;	463	};
283	$guard	464
		465	sub get_slot($;$$) {
		466	return if tick_inhibit || $Coro::current == $Coro::main;
		467
		468	my ($time, $pri, $name) = @_;
		469
		470	$time = clamp $time, 0.01, $TICK * .6;
		471
		472	my $sig = new Coro::Signal;
		473
		474	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		475	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		476	$SLOT_QUEUE->ready;
		477	$sig->wait;
284	}	478	}
285		479
286	=item cf::async { BLOCK }	480	=item cf::async { BLOCK }
287		481
288	Currently the same as Coro::async_pool, meaning you cannot use	482	Currently the same as Coro::async_pool, meaning you cannot use
…		…
293		487
294	BEGIN { *async = \&Coro::async_pool }	488	BEGIN { *async = \&Coro::async_pool }
295		489
296	=item cf::sync_job { BLOCK }	490	=item cf::sync_job { BLOCK }
297		491
298	The design of crossfire+ requires that the main coro ($Coro::main) is	492	The design of Deliantra requires that the main coroutine ($Coro::main)
299	always able to handle events or runnable, as crossfire+ is only partly	493	is always able to handle events or runnable, as Deliantra is only
300	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
301		496
302	If it must be done, put the blocking parts into C<sync_job>. This will run	497	If it must be done, put the blocking parts into C<sync_job>. This will run
303	the given BLOCK in another coroutine while waiting for the result. The	498	the given BLOCK in another coroutine while waiting for the result. The
304	server will be frozen during this time, so the block should either finish	499	server will be frozen during this time, so the block should either finish
305	fast or be very important.	500	fast or be very important.
…		…
308		503
309	sub sync_job(&) {	504	sub sync_job(&) {
310	my ($job) = @_;	505	my ($job) = @_;
311		506
312	if ($Coro::current == $Coro::main) {	507	if ($Coro::current == $Coro::main) {
		508	my $time = EV::time;
		509
313	# this is the main coro, too bad, we have to block	510	# this is the main coro, too bad, we have to block
314	# till the operation succeeds, freezing the server :/	511	# till the operation succeeds, freezing the server :/
315		512
316	# TODO: use suspend/resume instead	513	LOG llevError, Carp::longmess "sync job";#d#
317	# (but this is cancel-safe)	514
318	my $freeze_guard = freeze_mainloop;	515	my $freeze_guard = freeze_mainloop;
319		516
320	my $busy = 1;	517	my $busy = 1;
321	my @res;	518	my @res;
322		519
323	(async {	520	(async {
		521	$Coro::current->desc ("sync job coro");
324	@res = eval { $job->() };	522	@res = eval { $job->() };
325	warn $@ if $@;	523	warn $@ if $@;
326	undef $busy;	524	undef $busy;
327	})->prio (Coro::PRIO_MAX);	525	})->prio (Coro::PRIO_MAX);
328		526
329	while ($busy) {	527	while ($busy) {
330	Coro::cede or Event::one_event;	528	if (Coro::nready) {
		529	Coro::cede_notself;
		530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
331	}	532	}
		533	}
		534
		535	my $time = EV::time - $time;
		536
		537	$TICK_START += $time; # do not account sync jobs to server load
332		538
333	wantarray ? @res : $res[0]	539	wantarray ? @res : $res[0]
334	} else {	540	} else {
335	# we are in another coroutine, how wonderful, everything just works	541	# we are in another coroutine, how wonderful, everything just works
336		542
…		…
356	$EXT_CORO{$coro+0} = $coro;	562	$EXT_CORO{$coro+0} = $coro;
357		563
358	$coro	564	$coro
359	}	565	}
360		566
361	sub write_runtime {	567	=item fork_call { }, $args
362	my $guard = cf::lock_acquire "write_runtime";
363		568
364	my $runtime = cf::localdir . "/runtime";	569	Executes the given code block with the given arguments in a seperate
		570	process, returning the results. Everything must be serialisable with
		571	Coro::Storable. May, of course, block. Note that the executed sub may
		572	never block itself or use any form of event handling.
365		573
366	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	574	=cut
367	or return;
368		575
369	my $value = $cf::RUNTIME + 90 + 10;	576	sub fork_call(&@) {
370	# 10 is the runtime save interval, for a monotonic clock	577	my ($cb, @args) = @_;
371	# 60 allows for the watchdog to kill the server.
372		578
373	(aio_write $fh, 0, (length $value), $value, 0) <= 0	579	# we seemingly have to make a local copy of the whole thing,
374	and return;	580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
375		582
376	# always fsync - this file is important	583	my @res = Coro::Util::fork_eval {
377	aio_fsync $fh	584	reset_signals;
378	and return;	585	&$cb
		586	}, @args;
379		587
380	close $fh	588	wantarray ? @res : $res[-1]
381	or return;	589	}
382		590
383	aio_rename "$runtime~", $runtime	591	=item $coin = coin_from_name $name
384	and return;
385		592
		593	=cut
		594
		595	our %coin_alias = (
		596	"silver" => "silvercoin",
		597	"silvercoin" => "silvercoin",
		598	"silvercoins" => "silvercoin",
		599	"gold" => "goldcoin",
		600	"goldcoin" => "goldcoin",
		601	"goldcoins" => "goldcoin",
		602	"platinum" => "platinacoin",
		603	"platinumcoin" => "platinacoin",
		604	"platinumcoins" => "platinacoin",
		605	"platina" => "platinacoin",
		606	"platinacoin" => "platinacoin",
		607	"platinacoins" => "platinacoin",
		608	"royalty" => "royalty",
		609	"royalties" => "royalty",
		610	);
		611
		612	sub coin_from_name($) {
		613	$coin_alias{$_[0]}
		614	? cf::arch::find $coin_alias{$_[0]}
		615	: undef
		616	}
		617
		618	=item $value = cf::db_get $family => $key
		619
		620	Returns a single value from the environment database.
		621
		622	=item cf::db_put $family => $key => $value
		623
		624	Stores the given C<$value> in the family. It can currently store binary
		625	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		626
		627	=item $db = cf::db_table "name"
		628
		629	Create and/or open a new database table. The string must not be "db" and must be unique
		630	within each server.
		631
		632	=cut
		633
		634	sub db_table($) {
		635	my ($name) = @_;
		636	my $db = BDB::db_create $DB_ENV;
		637
		638	eval {
		639	$db->set_flags (BDB::CHKSUM);
		640
		641	utf8::encode $name;
		642	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		643	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		644	cf::cleanup "db_open(db): $!" if $!;
		645	};
		646	cf::cleanup "db_open(db): $@" if $@;
		647
		648	$db
		649	}
		650
		651	our $DB;
		652
		653	sub db_init {
		654	cf::sync_job {
		655	$DB ||= db_table "db";
		656	};
		657	}
		658
		659	sub db_get($$) {
		660	my $key = "$_[0]/$_[1]";
		661
		662	cf::sync_job {
		663	BDB::db_get $DB, undef, $key, my $data;
		664
		665	$! ? ()
		666	: $data
386	1	667	}
		668	}
		669
		670	sub db_put($$$) {
		671	BDB::dbreq_pri 4;
		672	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		673	}
		674
		675	=item cf::cache $id => [$paths...], $processversion => $process
		676
		677	Generic caching function that returns the value of the resource $id,
		678	caching and regenerating as required.
		679
		680	This function can block.
		681
		682	=cut
		683
		684	sub cache {
		685	my ($id, $src, $processversion, $process) = @_;
		686
		687	my $meta =
		688	join "\x00",
		689	$processversion,
		690	map {
		691	aio_stat $_
		692	and Carp::croak "$_: $!";
		693
		694	($_, (stat _)[7,9])
		695	} @$src;
		696
		697	my $dbmeta = db_get cache => "$id/meta";
		698	if ($dbmeta ne $meta) {
		699	# changed, we may need to process
		700
		701	my @data;
		702	my $md5;
		703
		704	for (0 .. $#$src) {
		705	0 <= aio_load $src->[$_], $data[$_]
		706	or Carp::croak "$src->[$_]: $!";
		707	}
		708
		709	# if processing is expensive, check
		710	# checksum first
		711	if (1) {
		712	$md5 =
		713	join "\x00",
		714	$processversion,
		715	map {
		716	cf::cede_to_tick;
		717	($src->[$_], Digest::MD5::md5_hex $data[$_])
		718	} 0.. $#$src;
		719
		720
		721	my $dbmd5 = db_get cache => "$id/md5";
		722	if ($dbmd5 eq $md5) {
		723	db_put cache => "$id/meta", $meta;
		724
		725	return db_get cache => "$id/data";
		726	}
		727	}
		728
		729	my $t1 = Time::HiRes::time;
		730	my $data = $process->(\@data);
		731	my $t2 = Time::HiRes::time;
		732
		733	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		734
		735	db_put cache => "$id/data", $data;
		736	db_put cache => "$id/md5" , $md5;
		737	db_put cache => "$id/meta", $meta;
		738
		739	return $data;
		740	}
		741
		742	db_get cache => "$id/data"
		743	}
		744
		745	=item cf::datalog type => key => value, ...
		746
		747	Log a datalog packet of the given type with the given key-value pairs.
		748
		749	=cut
		750
		751	sub datalog($@) {
		752	my ($type, %kv) = @_;
		753	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
387	}	754	}
388		755
389	=back	756	=back
390		757
391	=cut	758	=cut
392		759
393	#############################################################################	760	#############################################################################
394		761
395	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
396		763
397	Many objects in crossfire are so-called attachable objects. That means you can	764	Many objects in deliantra are so-called attachable objects. That means you can
398	attach callbacks/event handlers (a collection of which is called an "attachment")	765	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
400		767
401	In the following description, CLASS can be any of C<global>, C<object>	768	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	769	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	770	Deliantra).
404		771
405	=over 4	772	=over 4
406		773
407	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
408		775
…		…
452	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
453		820
454	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
455	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
456		823
457	Some classes such as crossfire maps and objects can specify attachments	824	Some classes such as deliantra maps and objects can specify attachments
458	that are attached at load/instantiate time, thus the need for a name.	825	that are attached at load/instantiate time, thus the need for a name.
459		826
460	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
461		828
462	=over 4	829	=over 4
…		…
571	$registry = $CB_TYPE[$object_type] ||= [];	938	$registry = $CB_TYPE[$object_type] ||= [];
572		939
573	} elsif ($type eq "subtype") {	940	} elsif ($type eq "subtype") {
574	defined $object_type or Carp::croak "subtype specified without type";	941	defined $object_type or Carp::croak "subtype specified without type";
575	my $object_subtype = shift @arg;	942	my $object_subtype = shift @arg;
576	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	943	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
577		944
578	} elsif ($type eq "package") {	945	} elsif ($type eq "package") {
579	my $pkg = shift @arg;	946	my $pkg = shift @arg;
580		947
581	while (my ($name, $id) = each %cb_id) {	948	while (my ($name, $id) = each %cb_id) {
…		…
610	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
611	}	978	}
612		979
613	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
614	} else {	981	} else {
615	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
616	}	983	}
617		984
618	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
619	}	986	}
620		987
…		…
622	if (ref $_[0]) {	989	if (ref $_[0]) {
623	_object_attach @_;	990	_object_attach @_;
624	} else {	991	} else {
625	_attach shift->_attach_registry, @_;	992	_attach shift->_attach_registry, @_;
626	}	993	}
		994	_recalc_want;
627	};	995	};
628		996
629	# all those should be optimised	997	# all those should be optimised
630	sub cf::attachable::detach {	998	sub cf::attachable::detach {
631	my ($obj, $name) = @_;	999	my ($obj, $name) = @_;
…		…
634	delete $obj->{_attachment}{$name};	1002	delete $obj->{_attachment}{$name};
635	reattach ($obj);	1003	reattach ($obj);
636	} else {	1004	} else {
637	Carp::croak "cannot, currently, detach class attachments";	1005	Carp::croak "cannot, currently, detach class attachments";
638	}	1006	}
		1007	_recalc_want;
639	};	1008	};
640		1009
641	sub cf::attachable::attached {	1010	sub cf::attachable::attached {
642	my ($obj, $name) = @_;	1011	my ($obj, $name) = @_;
643		1012
…		…
658	";	1027	";
659	die if $@;	1028	die if $@;
660	}	1029	}
661		1030
662	our $override;	1031	our $override;
663	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1032	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
664		1033
665	sub override {	1034	sub override {
666	$override = 1;	1035	$override = 1;
667	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
668	}	1037	}
669		1038
670	sub do_invoke {	1039	sub do_invoke {
671	my $event = shift;	1040	my $event = shift;
672	my $callbacks = shift;	1041	my $callbacks = shift;
673		1042
674	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
675		1044
676	local $override;	1045	local $override;
677		1046
678	for (@$callbacks) {	1047	for (@$callbacks) {
679	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
688	}	1057	}
689		1058
690	0	1059	0
691	}	1060	}
692		1061
693	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
694		1063
695	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
696		1065
697	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
698		1067
699	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1068	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
700	removed in future versions), and there is no public API to access override	1069	removed in future versions), and there is no public API to access override
701	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
702		1071
703	=back	1072	=back
704		1073
705	=cut	1074	=cut
706		1075
707	#############################################################################	1076	#############################################################################
708	# object support	1077	# object support
		1078
		1079	sub _object_equal($$);
		1080	sub _object_equal($$) {
		1081	my ($a, $b) = @_;
		1082
		1083	return 0 unless (ref $a) eq (ref $b);
		1084
		1085	if ("HASH" eq ref $a) {
		1086	my @ka = keys %$a;
		1087	my @kb = keys %$b;
		1088
		1089	return 0 if @ka != @kb;
		1090
		1091	for (0 .. $#ka) {
		1092	return 0 unless $ka[$_] eq $kb[$_];
		1093	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1094	}
		1095
		1096	} elsif ("ARRAY" eq ref $a) {
		1097
		1098	return 0 if @$a != @$b;
		1099
		1100	for (0 .. $#$a) {
		1101	return 0 unless _object_equal $a->[$_], $b->[$_];
		1102	}
		1103
		1104	} elsif ($a ne $b) {
		1105	return 0;
		1106	}
		1107
		1108	1
		1109	}
		1110
		1111	our $SLOW_MERGES;#d#
		1112	sub _can_merge {
		1113	my ($ob1, $ob2) = @_;
		1114
		1115	++$SLOW_MERGES;#d#
		1116
		1117	# we do the slow way here
		1118	return _object_equal $ob1, $ob2
		1119	}
709		1120
710	sub reattach {	1121	sub reattach {
711	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
712	my ($obj) = @_;	1123	my ($obj) = @_;
713		1124
		1125	# no longer needed after getting rid of delete_package?
714	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1126	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
715		1127
716	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
717		1129
718	@$registry = ();	1130	@$registry = ();
719		1131
…		…
734	cf::attachable->attach (	1146	cf::attachable->attach (
735	prio => -1000000,	1147	prio => -1000000,
736	on_instantiate => sub {	1148	on_instantiate => sub {
737	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
738		1150
739	$data = from_json $data;	1151	$data = decode_json $data;
740		1152
741	for (@$data) {	1153	for (@$data) {
742	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
743		1155
744	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
760	sub object_freezer_save {	1172	sub object_freezer_save {
761	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
762		1174
763	sync_job {	1175	sync_job {
764	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
765	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
766	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
767		1180
768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
769	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
771	aio_fsync $fh if $cf::USE_FSYNC;	1184	if ($cf::USE_FSYNC) {
		1185	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;
		1186	aio_fsync $fh;
		1187	}
772	close $fh;	1188	aio_close $fh;
773		1189
774	if (@$objs) {	1190	if (@$objs) {
775	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1191	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
776	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
777	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
778	aio_write $fh, 0, (length $data), $data, 0;	1194	aio_write $fh, 0, (length $data), $data, 0;
779	aio_fsync $fh if $cf::USE_FSYNC;	1195	if ($cf::USE_FSYNC) {
		1196	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;
		1197	aio_fsync $fh;
		1198	}
780	close $fh;	1199	aio_close $fh;
781	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
782	}	1201	}
783	} else {	1202	} else {
784	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
785	}	1204	}
786		1205
787	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
788	} else {	1210	} else {
789	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
790	}	1212	}
791	} else {	1213	} else {
792	aio_unlink $filename;	1214	aio_unlink $filename;
793	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
794	}	1216	}
795	}	1217	};
796	}	1218	}
797		1219
798	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
800		1222
…		…
812	or return;	1234	or return;
813		1235
814	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
815	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
816	or return;	1238	or return;
		1239
817	$av = eval { (Storable::thaw $av)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
818	}	1242	}
819		1243
		1244	utf8::decode (my $decname = $filename);
820	warn sprintf "loading %s (%d)\n",	1245	warn sprintf "loading %s (%d,%d)\n",
821	$filename, length $data, scalar @{$av || []};#d#	1246	$decname, length $data, scalar @{$av || []};
		1247
822	return ($data, $av);	1248	($data, $av)
823	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
824		1256
825	#############################################################################	1257	#############################################################################
826	# command handling &c	1258	# command handling &c
827		1259
828	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1274	}
843		1275
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
845		1277
846	Register a callbackf ro execution when the client sends an extcmd packet.	1278	Register a callback for execution when the client sends an (synchronous)
		1279	extcmd packet. Ext commands will be processed in the order they are
		1280	received by the server, like other user commands. The first argument is
		1281	the logged-in player. Ext commands can only be processed after a player
		1282	has logged in successfully.
847		1283
848	If the callback returns something, it is sent back as if reply was being	1284	If the callback returns something, it is sent back as if reply was being
849	called.	1285	called.
850		1286
		1287	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1288
		1289	Register a callback for execution when the client sends an (asynchronous)
		1290	exticmd packet. Exti commands are processed by the server as soon as they
		1291	are received, i.e. out of order w.r.t. other commands. The first argument
		1292	is a client socket. Exti commands can be received anytime, even before
		1293	log-in.
		1294
		1295	If the callback returns something, it is sent back as if reply was being
		1296	called.
		1297
851	=cut	1298	=cut
852		1299
853	sub register_extcmd {	1300	sub register_extcmd {
854	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
855		1302
856	$EXTCMD{$name} = $cb;	1303	$EXTCMD{$name} = $cb;
857	}	1304	}
		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
858		1313
859	cf::player->attach (	1314	cf::player->attach (
860	on_command => sub {	1315	on_command => sub {
861	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
862		1317
…		…
870	cf::override;	1325	cf::override;
871	},	1326	},
872	on_extcmd => sub {	1327	on_extcmd => sub {
873	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
874		1329
875	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
876		1331
877	if (ref $msg) {	1332	if (ref $msg) {
		1333	my ($type, $reply, @payload) =
		1334	"ARRAY" eq ref $msg
		1335	? @$msg
		1336	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1337
		1338	my @reply;
		1339
878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
879	if (my %reply = $cb->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
880	$pl->ext_reply ($msg->{msgid}, %reply);
881	}
882	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
883	} else {	1347	} else {
884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
885	}	1349	}
886		1350
887	cf::override;	1351	cf::override;
888	},	1352	},
889	);	1353	);
890		1354
		1355	# "readahead" all extensions
891	sub load_extension {	1356	sub cache_extensions {
892	my ($path) = @_;	1357	my $grp = IO::AIO::aio_group;
893		1358
894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
895	my $base = $1;	1360	for (grep /\.ext$/, @{$_[0]}) {
896	my $pkg = $1;	1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
897	$pkg =~ s/[^[:word:]]/_/g;
898	$pkg = "ext::$pkg";
899
900	warn "... loading '$path' into '$pkg'\n";
901
902	open my $fh, "<:utf8", $path
903	or die "$path: $!";
904
905	my $source =
906	"package $pkg; use strict; use utf8;\n"
907	. "#line 1 \"$path\"\n{\n"
908	. (do { local $/; <$fh> })
909	. "\n};\n1";
910
911	unless (eval $source) {
912	my $msg = $@ ? "$path: $@\n"
913	: "extension disabled.\n";
914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
915	warn $@;
916	warn "mandatory extension failed to load, exiting.\n";
917	exit 1;
918	}	1362	}
919	die $@;
920	}	1363	};
921		1364
922	push @EXTS, $pkg;	1365	$grp
923	}	1366	}
924		1367
925	sub load_extensions {	1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
926	for my $ext (<$LIBDIR/*.ext>) {	1372	for my $path (<$LIBDIR/*.ext>) {
927	next unless -r $ext;	1373	next unless -r $path;
928	eval {	1374
929	load_extension $ext;	1375	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1376	my $base = $1;
		1377	my $pkg = $1;
		1378	$pkg =~ s/[^[:word:]]/_/g;
		1379	$pkg = "ext::$pkg";
		1380
		1381	open my $fh, "<:utf8", $path
		1382	or die "$path: $!";
		1383
		1384	my $source = do { local $/; <$fh> };
		1385
		1386	my %ext = (
		1387	path => $path,
		1388	base => $base,
		1389	pkg => $pkg,
		1390	);
		1391
		1392	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1393	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1394
		1395	$ext{source} =
		1396	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1397	. "#line 1 \"$path\"\n{\n"
		1398	. $source
		1399	. "\n};\n1";
		1400
		1401	$todo{$base} = \%ext;
		1402	}
		1403
		1404	my %done;
		1405	while (%todo) {
		1406	my $progress;
		1407
		1408	while (my ($k, $v) = each %todo) {
		1409	for (split /,\s*/, $v->{meta}{depends}) {
		1410	goto skip
		1411	unless exists $done{$_};
		1412	}
		1413
		1414	warn "... loading '$k' into '$v->{pkg}'\n";
		1415
		1416	unless (eval $v->{source}) {
		1417	my $msg = $@ ? "$v->{path}: $@\n"
		1418	: "$v->{base}: extension inactive.\n";
		1419
		1420	if (exists $v->{meta}{mandatory}) {
		1421	warn $msg;
		1422	cf::cleanup "mandatory extension failed to load, exiting.";
		1423	}
		1424
		1425	warn $msg;
		1426	}
		1427
		1428	$done{$k} = delete $todo{$k};
		1429	push @EXTS, $v->{pkg};
		1430	$progress = 1;
930	1	1431	}
931	} or warn "$ext not loaded: $@";	1432
		1433	skip:
		1434	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1435	unless $progress;
		1436	}
932	}	1437	};
933	}	1438	}
934		1439
935	#############################################################################	1440	#############################################################################
936		1441
		1442	=back
		1443
937	=head2 CORE EXTENSIONS	1444	=head2 CORE EXTENSIONS
938		1445
939	Functions and methods that extend core crossfire objects.	1446	Functions and methods that extend core deliantra objects.
940		1447
941	=cut	1448	=cut
942		1449
943	package cf::player;	1450	package cf::player;
944		1451
…		…
946		1453
947	=head3 cf::player	1454	=head3 cf::player
948		1455
949	=over 4	1456	=over 4
950		1457
		1458	=item cf::player::num_playing
		1459
		1460	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1461
		1462	=cut
		1463
		1464	sub num_playing {
		1465	scalar grep
		1466	$_->ob->map
		1467	&& !$_->hidden
		1468	&& !$_->ob->flag (cf::FLAG_WIZ),
		1469	cf::player::list
		1470	}
		1471
951	=item cf::player::find $login	1472	=item cf::player::find $login
952		1473
953	Returns the given player object, loading it if necessary (might block).	1474	Returns the given player object, loading it if necessary (might block).
954		1475
955	=cut	1476	=cut
956		1477
957	sub playerdir($) {	1478	sub playerdir($) {
958	cf::localdir	1479	"$PLAYERDIR/"
959	. "/"
960	. cf::playerdir
961	. "/"
962	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1480	. (ref $_[0] ? $_[0]->ob->name : $_[0])
963	}	1481	}
964		1482
965	sub path($) {	1483	sub path($) {
966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1484	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
967		1485
968	(playerdir $login) . "/$login.pl"	1486	(playerdir $login) . "/playerdata"
969	}	1487	}
970		1488
971	sub find_active($) {	1489	sub find_active($) {
972	$cf::PLAYER{$_[0]}	1490	$cf::PLAYER{$_[0]}
973	and $cf::PLAYER{$_[0]}->active	1491	and $cf::PLAYER{$_[0]}->active
…		…
976		1494
977	sub exists($) {	1495	sub exists($) {
978	my ($login) = @_;	1496	my ($login) = @_;
979		1497
980	$cf::PLAYER{$login}	1498	$cf::PLAYER{$login}
981	or cf::sync_job { !aio_stat path $login }	1499	or !aio_stat path $login
982	}	1500	}
983		1501
984	sub find($) {	1502	sub find($) {
985	return $cf::PLAYER{$_[0]} || do {	1503	return $cf::PLAYER{$_[0]} || do {
986	my $login = $_[0];	1504	my $login = $_[0];
987		1505
988	my $guard = cf::lock_acquire "user_find:$login";	1506	my $guard = cf::lock_acquire "user_find:$login";
989		1507
990	$cf::PLAYER{$_[0]} || do {	1508	$cf::PLAYER{$_[0]} || do {
991	my $pl = load_pl path $login	1509	# rename old playerfiles to new ones
		1510	#TODO: remove when no longer required
		1511	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1512	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1513	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1514	aio_unlink +(playerdir $login) . "/$login.pl";
		1515
		1516	my $f = new_from_file cf::object::thawer path $login
992	or return;	1517	or return;
		1518
		1519	my $pl = cf::player::load_pl $f
		1520	or return;
		1521
		1522	local $cf::PLAYER_LOADING{$login} = $pl;
		1523	$f->resolve_delayed_derefs;
993	$cf::PLAYER{$login} = $pl	1524	$cf::PLAYER{$login} = $pl
994	}	1525	}
995	}	1526	}
996	}	1527	}
997		1528
…		…
1006	return if $pl->{deny_save};	1537	return if $pl->{deny_save};
1007		1538
1008	aio_mkdir playerdir $pl, 0770;	1539	aio_mkdir playerdir $pl, 0770;
1009	$pl->{last_save} = $cf::RUNTIME;	1540	$pl->{last_save} = $cf::RUNTIME;
1010		1541
		1542	cf::get_slot 0.01;
		1543
1011	$pl->save_pl ($path);	1544	$pl->save_pl ($path);
1012	Coro::cede;	1545	cf::cede_to_tick;
1013	}	1546	}
1014		1547
1015	sub new($) {	1548	sub new($) {
1016	my ($login) = @_;	1549	my ($login) = @_;
1017		1550
…		…
1023	$cf::PLAYER{$login} = $self;	1556	$cf::PLAYER{$login} = $self;
1024		1557
1025	$self	1558	$self
1026	}	1559	}
1027		1560
		1561	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1562
		1563	=cut
		1564
		1565	sub send_msg {
		1566	my $ns = shift->ns
		1567	or return;
		1568	$ns->send_msg (@_);
		1569	}
		1570
1028	=item $pl->quit_character	1571	=item $pl->quit_character
1029		1572
1030	Nukes the player without looking back. If logged in, the connection will	1573	Nukes the player without looking back. If logged in, the connection will
1031	be destroyed. May block for a long time.	1574	be destroyed. May block for a long time.
1032		1575
…		…
1036	my ($pl) = @_;	1579	my ($pl) = @_;
1037		1580
1038	my $name = $pl->ob->name;	1581	my $name = $pl->ob->name;
1039		1582
1040	$pl->{deny_save} = 1;	1583	$pl->{deny_save} = 1;
1041	$pl->password ("*"); # this should lock out the player until we nuked the dir	1584	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1042		1585
1043	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1586	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1044	$pl->deactivate;	1587	$pl->deactivate;
		1588	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1589	$pl->ob->check_score;
1045	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1590	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1046	$pl->ns->destroy if $pl->ns;	1591	$pl->ns->destroy if $pl->ns;
1047		1592
1048	my $path = playerdir $pl;	1593	my $path = playerdir $pl;
1049	my $temp = "$path~$cf::RUNTIME~deleting~";	1594	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1079	while and may block, so not sync_job-capable, ever.	1624	while and may block, so not sync_job-capable, ever.
1080		1625
1081	=cut	1626	=cut
1082		1627
1083	sub list_logins {	1628	sub list_logins {
1084	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1629	my $dirs = aio_readdir $PLAYERDIR
1085	or return [];	1630	or return [];
1086		1631
1087	my @logins;	1632	my @logins;
1088		1633
1089	for my $login (@$dirs) {	1634	for my $login (@$dirs) {
		1635	my $path = path $login;
		1636
		1637	# a .pst is a dead give-away for a valid player
		1638	# if no pst file found, open and chekc for blocked users
		1639	if (aio_stat "$path.pst") {
1090	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1640	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1091	aio_read $fh, 0, 512, my $buf, 0 or next;	1641	aio_read $fh, 0, 512, my $buf, 0 or next;
1092	$buf !~ /^password -------------$/m or next; # official not-valid tag	1642	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1643	}
1093		1644
1094	utf8::decode $login;	1645	utf8::decode $login;
1095	push @logins, $login;	1646	push @logins, $login;
1096	}	1647	}
1097		1648
…		…
1124	}	1675	}
1125		1676
1126	\@paths	1677	\@paths
1127	}	1678	}
1128		1679
		1680	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1681
		1682	Expand deliantra pod fragments into protocol xml.
		1683
1129	=item $player->ext_reply ($msgid, $msgtype, %msg)	1684	=item $player->ext_reply ($msgid, @msg)
1130		1685
1131	Sends an ext reply to the player.	1686	Sends an ext reply to the player.
1132		1687
1133	=cut	1688	=cut
1134		1689
1135	sub ext_reply($$$%) {	1690	sub ext_reply($$@) {
1136	my ($self, $id, %msg) = @_;	1691	my ($self, $id, @msg) = @_;
1137		1692
1138	$msg{msgid} = $id;	1693	$self->ns->ext_reply ($id, @msg)
1139
1140	$self->send ("ext " . cf::to_json \%msg);
1141	}	1694	}
1142		1695
1143	package cf;	1696	=item $player->ext_msg ($type, @msg)
		1697
		1698	Sends an ext event to the client.
		1699
		1700	=cut
		1701
		1702	sub ext_msg($$@) {
		1703	my ($self, $type, @msg) = @_;
		1704
		1705	$self->ns->ext_msg ($type, @msg);
		1706	}
		1707
		1708	=head3 cf::region
		1709
		1710	=over 4
		1711
		1712	=cut
		1713
		1714	package cf::region;
		1715
		1716	=item cf::region::find_by_path $path
		1717
		1718	Tries to decuce the likely region for a map knowing only its path.
		1719
		1720	=cut
		1721
		1722	sub find_by_path($) {
		1723	my ($path) = @_;
		1724
		1725	my ($match, $specificity);
		1726
		1727	for my $region (list) {
		1728	if ($region->{match} && $path =~ $region->{match}) {
		1729	($match, $specificity) = ($region, $region->specificity)
		1730	if $region->specificity > $specificity;
		1731	}
		1732	}
		1733
		1734	$match
		1735	}
1144		1736
1145	=back	1737	=back
1146
1147		1738
1148	=head3 cf::map	1739	=head3 cf::map
1149		1740
1150	=over 4	1741	=over 4
1151		1742
…		…
1163	our $MAX_RESET = 3600;	1754	our $MAX_RESET = 3600;
1164	our $DEFAULT_RESET = 3000;	1755	our $DEFAULT_RESET = 3000;
1165		1756
1166	sub generate_random_map {	1757	sub generate_random_map {
1167	my ($self, $rmp) = @_;	1758	my ($self, $rmp) = @_;
		1759
		1760	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1761
1168	# mit "rum" bekleckern, nicht	1762	# mit "rum" bekleckern, nicht
1169	$self->_create_random_map (	1763	$self->_create_random_map (
1170	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1764	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1171	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1765	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1172	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1766	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1206	my ($self, $merge) = @_;	1800	my ($self, $merge) = @_;
1207		1801
1208	# we have to keep some variables in memory intact	1802	# we have to keep some variables in memory intact
1209	local $self->{path};	1803	local $self->{path};
1210	local $self->{load_path};	1804	local $self->{load_path};
1211	local $self->{deny_save};
1212	local $self->{deny_reset};
1213		1805
1214	$self->SUPER::thawer_merge ($merge);	1806	$self->SUPER::thawer_merge ($merge);
1215	}	1807	}
1216		1808
1217	sub normalise {	1809	sub normalise {
…		…
1264	$self->init; # pass $1 etc.	1856	$self->init; # pass $1 etc.
1265	return $self;	1857	return $self;
1266	}	1858	}
1267	}	1859	}
1268		1860
1269	Carp::carp "unable to resolve path '$path' (base '$base').";	1861	Carp::cluck "unable to resolve path '$path' (base '$base').";
1270	()	1862	()
1271	}	1863	}
1272		1864
1273	sub init {	1865	sub init {
1274	my ($self) = @_;	1866	my ($self) = @_;
…		…
1289		1881
1290	# the original (read-only) location	1882	# the original (read-only) location
1291	sub load_path {	1883	sub load_path {
1292	my ($self) = @_;	1884	my ($self) = @_;
1293		1885
1294	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1886	"$MAPDIR/$self->{path}.map"
1295	}	1887	}
1296		1888
1297	# the temporary/swap location	1889	# the temporary/swap location
1298	sub save_path {	1890	sub save_path {
1299	my ($self) = @_;	1891	my ($self) = @_;
1300		1892
1301	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1893	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1302	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1894	"$TMPDIR/$path.map"
1303	}	1895	}
1304		1896
1305	# the unique path, undef == no special unique path	1897	# the unique path, undef == no special unique path
1306	sub uniq_path {	1898	sub uniq_path {
1307	my ($self) = @_;	1899	my ($self) = @_;
1308		1900
1309	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1901	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1310	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1902	"$UNIQUEDIR/$path"
1311	}	1903	}
1312		1904
1313	# and all this just because we cannot iterate over	1905	sub decay_objects {
1314	# all maps in C++...
1315	sub change_all_map_light {
1316	my ($change) = @_;	1906	my ($self) = @_;
1317		1907
1318	$_->change_map_light ($change)	1908	return if $self->{deny_reset};
1319	for grep $_->outdoor, values %cf::MAP;	1909
		1910	$self->do_decay_objects;
1320	}	1911	}
1321		1912
1322	sub unlink_save {	1913	sub unlink_save {
1323	my ($self) = @_;	1914	my ($self) = @_;
1324		1915
…		…
1329		1920
1330	sub load_header_from($) {	1921	sub load_header_from($) {
1331	my ($self, $path) = @_;	1922	my ($self, $path) = @_;
1332		1923
1333	utf8::encode $path;	1924	utf8::encode $path;
1334	#aio_open $path, O_RDONLY, 0	1925	my $f = new_from_file cf::object::thawer $path
1335	# or return;
1336
1337	$self->_load_header ($path)
1338	or return;	1926	or return;
		1927
		1928	$self->_load_header ($f)
		1929	or return;
		1930
		1931	local $MAP_LOADING{$self->{path}} = $self;
		1932	$f->resolve_delayed_derefs;
1339		1933
1340	$self->{load_path} = $path;	1934	$self->{load_path} = $path;
1341		1935
1342	1	1936	1
1343	}	1937	}
…		…
1382	$self->load_header_orig	1976	$self->load_header_orig
1383	or return;	1977	or return;
1384	$self->prepare_orig;	1978	$self->prepare_orig;
1385	}	1979	}
1386		1980
		1981	$self->{deny_reset} = 1
		1982	if $self->no_reset;
		1983
		1984	$self->default_region (cf::region::find_by_path $self->{path})
		1985	unless $self->default_region;
		1986
1387	1	1987	1
1388	}	1988	}
1389		1989
1390	sub find;	1990	sub find;
1391	sub find {	1991	sub find {
1392	my ($path, $origin) = @_;	1992	my ($path, $origin) = @_;
1393		1993
1394	$path = normalise $path, $origin && $origin->path;	1994	$path = normalise $path, $origin && $origin->path;
1395		1995
		1996	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1396	cf::lock_wait "map_find:$path";	1997	my $guard2 = cf::lock_acquire "map_find:$path";
1397		1998
1398	$cf::MAP{$path} || do {	1999	$cf::MAP{$path} || do {
1399	my $guard = cf::lock_acquire "map_find:$path";
1400	my $map = new_from_path cf::map $path	2000	my $map = new_from_path cf::map $path
1401	or return;	2001	or return;
1402		2002
1403	$map->{last_save} = $cf::RUNTIME;	2003	$map->{last_save} = $cf::RUNTIME;
1404		2004
1405	$map->load_header	2005	$map->load_header
1406	or return;	2006	or return;
1407		2007
1408	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2008	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1409	# doing this can freeze the server in a sync job, obviously	2009	# doing this can freeze the server in a sync job, obviously
1410	#$cf::WAIT_FOR_TICK->wait;	2010	#$cf::WAIT_FOR_TICK->wait;
		2011	undef $guard2;
		2012	undef $guard1;
1411	$map->reset;	2013	$map->reset;
1412	undef $guard;
1413	return find $path;	2014	return find $path;
1414	}	2015	}
1415		2016
1416	$cf::MAP{$path} = $map	2017	$cf::MAP{$path} = $map
1417	}	2018	}
1418	}	2019	}
1419		2020
1420	sub pre_load { }	2021	sub pre_load { }
1421	sub post_load { }	2022	#sub post_load { } # XS
1422		2023
1423	sub load {	2024	sub load {
1424	my ($self) = @_;	2025	my ($self) = @_;
1425		2026
1426	local $self->{deny_reset} = 1; # loading can take a long time	2027	local $self->{deny_reset} = 1; # loading can take a long time
1427		2028
1428	my $path = $self->{path};	2029	my $path = $self->{path};
		2030
		2031	{
1429	my $guard = cf::lock_acquire "map_load:$path";	2032	my $guard = cf::lock_acquire "map_data:$path";
1430		2033
		2034	return unless $self->valid;
1431	return if $self->in_memory != cf::MAP_SWAPPED;	2035	return unless $self->in_memory == cf::MAP_SWAPPED;
1432		2036
1433	$self->in_memory (cf::MAP_LOADING);	2037	$self->in_memory (cf::MAP_LOADING);
1434		2038
1435	$self->alloc;	2039	$self->alloc;
1436		2040
1437	$self->pre_load;	2041	$self->pre_load;
		2042	cf::cede_to_tick;
1438		2043
1439	$self->_load_objects ($self->{load_path}, 1)	2044	my $f = new_from_file cf::object::thawer $self->{load_path};
		2045	$f->skip_block;
		2046	$self->_load_objects ($f)
1440	or return;	2047	or return;
1441		2048
1442	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2049	$self->post_load_original
1443	if delete $self->{load_original};	2050	if delete $self->{load_original};
1444		2051
1445	if (my $uniq = $self->uniq_path) {	2052	if (my $uniq = $self->uniq_path) {
1446	utf8::encode $uniq;	2053	utf8::encode $uniq;
1447	if (aio_open $uniq, O_RDONLY, 0) {	2054	unless (aio_stat $uniq) {
		2055	if (my $f = new_from_file cf::object::thawer $uniq) {
1448	$self->clear_unique_items;	2056	$self->clear_unique_items;
1449	$self->_load_objects ($uniq, 0);	2057	$self->_load_objects ($f);
		2058	$f->resolve_delayed_derefs;
		2059	}
1450	}	2060	}
1451	}	2061	}
1452		2062
1453	Coro::cede;	2063	$f->resolve_delayed_derefs;
1454		2064
		2065	cf::cede_to_tick;
1455	# now do the right thing for maps	2066	# now do the right thing for maps
1456	$self->link_multipart_objects;	2067	$self->link_multipart_objects;
1457
1458	unless ($self->{deny_activate}) {
1459	$self->decay_objects;
1460	$self->fix_auto_apply;
1461	$self->update_buttons;
1462	Coro::cede;
1463	$self->set_darkness_map;
1464	$self->difficulty ($self->estimate_difficulty)	2068	$self->difficulty ($self->estimate_difficulty)
1465	unless $self->difficulty;	2069	unless $self->difficulty;
1466	Coro::cede;	2070	cf::cede_to_tick;
		2071
		2072	unless ($self->{deny_activate}) {
		2073	$self->decay_objects;
		2074	$self->fix_auto_apply;
		2075	$self->update_buttons;
		2076	cf::cede_to_tick;
1467	$self->activate;	2077	$self->activate;
		2078	}
		2079
		2080	$self->{last_save} = $cf::RUNTIME;
		2081	$self->last_access ($cf::RUNTIME);
		2082
		2083	$self->in_memory (cf::MAP_ACTIVE);
1468	}	2084	}
1469		2085
1470	$self->post_load;	2086	$self->post_load;
1471
1472	$self->in_memory (cf::MAP_IN_MEMORY);
1473	}	2087	}
1474		2088
1475	sub customise_for {	2089	sub customise_for {
1476	my ($self, $ob) = @_;	2090	my ($self, $ob) = @_;
1477		2091
1478	return find "~" . $ob->name . "/" . $self->{path}	2092	return find "~" . $ob->name . "/" . $self->{path}
1479	if $self->per_player;	2093	if $self->per_player;
1480		2094
		2095	# return find "?party/" . $ob->name . "/" . $self->{path}
		2096	# if $self->per_party;
		2097
1481	$self	2098	$self
1482	}	2099	}
1483		2100
1484	# find and load all maps in the 3x3 area around a map	2101	# find and load all maps in the 3x3 area around a map
1485	sub load_diag {	2102	sub load_neighbours {
1486	my ($map) = @_;	2103	my ($map) = @_;
1487		2104
1488	my @diag; # diagonal neighbours	2105	my @neigh; # diagonal neighbours
1489		2106
1490	for (0 .. 3) {	2107	for (0 .. 3) {
1491	my $neigh = $map->tile_path ($_)	2108	my $neigh = $map->tile_path ($_)
1492	or next;	2109	or next;
1493	$neigh = find $neigh, $map	2110	$neigh = find $neigh, $map
1494	or next;	2111	or next;
1495	$neigh->load;	2112	$neigh->load;
1496		2113
		2114	push @neigh,
1497	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2115	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1498	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2116	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1499	}	2117	}
1500		2118
1501	for (@diag) {	2119	for (grep defined $_->[0], @neigh) {
		2120	my ($path, $origin) = @$_;
1502	my $neigh = find @$_	2121	my $neigh = find $path, $origin
1503	or next;	2122	or next;
1504	$neigh->load;	2123	$neigh->load;
1505	}	2124	}
1506	}	2125	}
1507		2126
…		…
1512	}	2131	}
1513		2132
1514	sub do_load_sync {	2133	sub do_load_sync {
1515	my ($map) = @_;	2134	my ($map) = @_;
1516		2135
		2136	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2137	if $Coro::current == $Coro::main;
		2138
1517	cf::sync_job { $map->load };	2139	cf::sync_job { $map->load };
1518	}	2140	}
1519		2141
1520	our %MAP_PREFETCH;	2142	our %MAP_PREFETCH;
1521	our $MAP_PREFETCHER = undef;	2143	our $MAP_PREFETCHER = undef;
1522		2144
1523	sub find_async {	2145	sub find_async {
1524	my ($path, $origin) = @_;	2146	my ($path, $origin, $load) = @_;
1525		2147
1526	$path = normalise $path, $origin && $origin->{path};	2148	$path = normalise $path, $origin && $origin->{path};
1527		2149
1528	if (my $map = $cf::MAP{$path}) {	2150	if (my $map = $cf::MAP{$path}) {
1529	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2151	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1530	}	2152	}
1531		2153
1532	undef $MAP_PREFETCH{$path};	2154	$MAP_PREFETCH{$path} |= $load;
		2155
1533	$MAP_PREFETCHER ||= cf::async {	2156	$MAP_PREFETCHER ||= cf::async {
		2157	$Coro::current->{desc} = "map prefetcher";
		2158
1534	while (%MAP_PREFETCH) {	2159	while (%MAP_PREFETCH) {
1535	for my $path (keys %MAP_PREFETCH) {	2160	while (my ($k, $v) = each %MAP_PREFETCH) {
1536	my $map = find $path	2161	if (my $map = find $k) {
1537	or next;
1538	$map->load;	2162	$map->load if $v;
		2163	}
1539		2164
1540	delete $MAP_PREFETCH{$path};	2165	delete $MAP_PREFETCH{$k};
1541	}	2166	}
1542	}	2167	}
1543	undef $MAP_PREFETCHER;	2168	undef $MAP_PREFETCHER;
1544	};	2169	};
1545	$MAP_PREFETCHER->prio (6);	2170	$MAP_PREFETCHER->prio (6);
…		…
1548	}	2173	}
1549		2174
1550	sub save {	2175	sub save {
1551	my ($self) = @_;	2176	my ($self) = @_;
1552		2177
1553	my $lock = cf::lock_acquire "map_data:" . $self->path;	2178	my $lock = cf::lock_acquire "map_data:$self->{path}";
1554		2179
1555	$self->{last_save} = $cf::RUNTIME;	2180	$self->{last_save} = $cf::RUNTIME;
1556		2181
1557	return unless $self->dirty;	2182	return unless $self->dirty;
1558		2183
…		…
1564	return if $self->{deny_save};	2189	return if $self->{deny_save};
1565		2190
1566	local $self->{last_access} = $self->last_access;#d#	2191	local $self->{last_access} = $self->last_access;#d#
1567		2192
1568	cf::async {	2193	cf::async {
		2194	$Coro::current->{desc} = "map player save";
1569	$_->contr->save for $self->players;	2195	$_->contr->save for $self->players;
1570	};	2196	};
		2197
		2198	cf::get_slot 0.02;
1571		2199
1572	if ($uniq) {	2200	if ($uniq) {
1573	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2201	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1574	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2202	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1575	} else {	2203	} else {
…		…
1581	my ($self) = @_;	2209	my ($self) = @_;
1582		2210
1583	# save first because save cedes	2211	# save first because save cedes
1584	$self->save;	2212	$self->save;
1585		2213
1586	my $lock = cf::lock_acquire "map_data:" . $self->path;	2214	my $lock = cf::lock_acquire "map_data:$self->{path}";
1587		2215
1588	return if $self->players;	2216	return if $self->players;
1589	return if $self->in_memory != cf::MAP_IN_MEMORY;	2217	return if $self->in_memory != cf::MAP_ACTIVE;
1590	return if $self->{deny_save};	2218	return if $self->{deny_save};
1591		2219
		2220	$self->in_memory (cf::MAP_SWAPPED);
		2221
		2222	$self->deactivate;
		2223	$_->clear_links_to ($self) for values %cf::MAP;
1592	$self->clear;	2224	$self->clear;
1593	$self->in_memory (cf::MAP_SWAPPED);
1594	}	2225	}
1595		2226
1596	sub reset_at {	2227	sub reset_at {
1597	my ($self) = @_;	2228	my ($self) = @_;
1598		2229
1599	# TODO: safety, remove and allow resettable per-player maps	2230	# TODO: safety, remove and allow resettable per-player maps
1600	return 1e99 if $self->isa ("ext::map_per_player");#d#
1601	return 1e99 if $self->{deny_reset};	2231	return 1e99 if $self->{deny_reset};
1602		2232
1603	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2233	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1604	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2234	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1605		2235
…		…
1616	my ($self) = @_;	2246	my ($self) = @_;
1617		2247
1618	my $lock = cf::lock_acquire "map_data:$self->{path}";	2248	my $lock = cf::lock_acquire "map_data:$self->{path}";
1619		2249
1620	return if $self->players;	2250	return if $self->players;
1621	return if $self->isa ("ext::map_per_player");#d#
1622		2251
1623	warn "resetting map ", $self->path;#d#	2252	warn "resetting map ", $self->path, "\n";
1624		2253
1625	$self->in_memory (cf::MAP_SWAPPED);	2254	$self->in_memory (cf::MAP_SWAPPED);
1626		2255
1627	# need to save uniques path	2256	# need to save uniques path
1628	unless ($self->{deny_save}) {	2257	unless ($self->{deny_save}) {
…		…
1632	if $uniq;	2261	if $uniq;
1633	}	2262	}
1634		2263
1635	delete $cf::MAP{$self->path};	2264	delete $cf::MAP{$self->path};
1636		2265
		2266	$self->deactivate;
		2267	$_->clear_links_to ($self) for values %cf::MAP;
1637	$self->clear;	2268	$self->clear;
1638
1639	$_->clear_links_to ($self) for values %cf::MAP;
1640		2269
1641	$self->unlink_save;	2270	$self->unlink_save;
1642	$self->destroy;	2271	$self->destroy;
1643	}	2272	}
1644		2273
1645	my $nuke_counter = "aaaa";	2274	my $nuke_counter = "aaaa";
1646		2275
1647	sub nuke {	2276	sub nuke {
1648	my ($self) = @_;	2277	my ($self) = @_;
1649		2278
		2279	{
		2280	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2281
1650	delete $cf::MAP{$self->path};	2282	delete $cf::MAP{$self->path};
1651		2283
1652	$self->unlink_save;	2284	$self->unlink_save;
1653		2285
1654	bless $self, "cf::map";	2286	bless $self, "cf::map";
1655	delete $self->{deny_reset};	2287	delete $self->{deny_reset};
1656	$self->{deny_save} = 1;	2288	$self->{deny_save} = 1;
1657	$self->reset_timeout (1);	2289	$self->reset_timeout (1);
1658	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2290	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1659		2291
1660	$cf::MAP{$self->path} = $self;	2292	$cf::MAP{$self->path} = $self;
		2293	}
1661		2294
1662	$self->reset; # polite request, might not happen	2295	$self->reset; # polite request, might not happen
		2296	}
		2297
		2298	=item $maps = cf::map::tmp_maps
		2299
		2300	Returns an arrayref with all map paths of currently instantiated and saved
		2301	maps. May block.
		2302
		2303	=cut
		2304
		2305	sub tmp_maps() {
		2306	[
		2307	map {
		2308	utf8::decode $_;
		2309	/\.map$/
		2310	? normalise $_
		2311	: ()
		2312	} @{ aio_readdir $TMPDIR or [] }
		2313	]
		2314	}
		2315
		2316	=item $maps = cf::map::random_maps
		2317
		2318	Returns an arrayref with all map paths of currently instantiated and saved
		2319	random maps. May block.
		2320
		2321	=cut
		2322
		2323	sub random_maps() {
		2324	[
		2325	map {
		2326	utf8::decode $_;
		2327	/\.map$/
		2328	? normalise "?random/$_"
		2329	: ()
		2330	} @{ aio_readdir $RANDOMDIR or [] }
		2331	]
1663	}	2332	}
1664		2333
1665	=item cf::map::unique_maps	2334	=item cf::map::unique_maps
1666		2335
1667	Returns an arrayref of paths of all shared maps that have	2336	Returns an arrayref of paths of all shared maps that have
1668	instantiated unique items. May block.	2337	instantiated unique items. May block.
1669		2338
1670	=cut	2339	=cut
1671		2340
1672	sub unique_maps() {	2341	sub unique_maps() {
1673	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2342	[
1674	or return;	2343	map {
1675
1676	my @paths;
1677
1678	for (@$files) {
1679	utf8::decode $_;	2344	utf8::decode $_;
1680	next if /\.pst$/;	2345	s/\.map$//; # TODO future compatibility hack
1681	next unless /^$PATH_SEP/o;	2346	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1682		2347	? ()
1683	push @paths, cf::map::normalise $_;	2348	: normalise $_
		2349	} @{ aio_readdir $UNIQUEDIR or [] }
1684	}	2350	]
1685
1686	\@paths
1687	}	2351	}
1688		2352
1689	package cf;	2353	=item cf::map::static_maps
		2354
		2355	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2356	file in the shared directory excluding F</styles> and F</editor>). May
		2357	block.
		2358
		2359	=cut
		2360
		2361	sub static_maps() {
		2362	my @dirs = "";
		2363	my @maps;
		2364
		2365	while (@dirs) {
		2366	my $dir = shift @dirs;
		2367
		2368	next if $dir eq "/styles" || $dir eq "/editor";
		2369
		2370	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2371	or return;
		2372
		2373	for (@$files) {
		2374	s/\.map$// or next;
		2375	utf8::decode $_;
		2376	push @maps, "$dir/$_";
		2377	}
		2378
		2379	push @dirs, map "$dir/$_", @$dirs;
		2380	}
		2381
		2382	\@maps
		2383	}
1690		2384
1691	=back	2385	=back
1692		2386
1693	=head3 cf::object	2387	=head3 cf::object
1694		2388
…		…
1698		2392
1699	=over 4	2393	=over 4
1700		2394
1701	=item $ob->inv_recursive	2395	=item $ob->inv_recursive
1702		2396
1703	Returns the inventory of the object _and_ their inventories, recursively.	2397	Returns the inventory of the object I<and> their inventories, recursively,
		2398	but I<not> the object itself.
1704		2399
1705	=cut	2400	=cut
1706		2401
1707	sub inv_recursive_;	2402	sub inv_recursive_;
1708	sub inv_recursive_ {	2403	sub inv_recursive_ {
…		…
1711		2406
1712	sub inv_recursive {	2407	sub inv_recursive {
1713	inv_recursive_ inv $_[0]	2408	inv_recursive_ inv $_[0]
1714	}	2409	}
1715		2410
		2411	=item $ref = $ob->ref
		2412
		2413	Creates and returns a persistent reference to an object that can be stored as a string.
		2414
		2415	=item $ob = cf::object::deref ($refstring)
		2416
		2417	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2418	even if the object actually exists. May block.
		2419
		2420	=cut
		2421
		2422	sub deref {
		2423	my ($ref) = @_;
		2424
		2425	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2426	my ($uuid, $name) = ($1, $2);
		2427	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2428	or return;
		2429	$pl->ob->uuid eq $uuid
		2430	or return;
		2431
		2432	$pl->ob
		2433	} else {
		2434	warn "$ref: cannot resolve object reference\n";
		2435	undef
		2436	}
		2437	}
		2438
1716	package cf;	2439	package cf;
1717		2440
1718	=back	2441	=back
1719		2442
1720	=head3 cf::object::player	2443	=head3 cf::object::player
…		…
1726	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2449	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1727	can be C<undef>. Does the right thing when the player is currently in a	2450	can be C<undef>. Does the right thing when the player is currently in a
1728	dialogue with the given NPC character.	2451	dialogue with the given NPC character.
1729		2452
1730	=cut	2453	=cut
		2454
		2455	our $SAY_CHANNEL = {
		2456	id => "say",
		2457	title => "Map",
		2458	reply => "say ",
		2459	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2460	};
		2461
		2462	our $CHAT_CHANNEL = {
		2463	id => "chat",
		2464	title => "Chat",
		2465	reply => "chat ",
		2466	tooltip => "Player chat and shouts, global to the server.",
		2467	};
1731		2468
1732	# rough implementation of a future "reply" method that works	2469	# rough implementation of a future "reply" method that works
1733	# with dialog boxes.	2470	# with dialog boxes.
1734	#TODO: the first argument must go, split into a $npc->reply_to ( method	2471	#TODO: the first argument must go, split into a $npc->reply_to ( method
1735	sub cf::object::player::reply($$$;$) {	2472	sub cf::object::player::reply($$$;$) {
…		…
1737		2474
1738	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2475	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1739		2476
1740	if ($self->{record_replies}) {	2477	if ($self->{record_replies}) {
1741	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2478	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2479
1742	} else {	2480	} else {
		2481	my $pl = $self->contr;
		2482
		2483	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2484	my $dialog = $pl->{npc_dialog};
		2485	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2486
		2487	} else {
1743	$msg = $npc->name . " says: $msg" if $npc;	2488	$msg = $npc->name . " says: $msg" if $npc;
1744	$self->message ($msg, $flags);	2489	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2490	}
1745	}	2491	}
		2492	}
		2493
		2494	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2495
		2496	=cut
		2497
		2498	sub cf::object::send_msg {
		2499	my $pl = shift->contr
		2500	or return;
		2501	$pl->send_msg (@_);
1746	}	2502	}
1747		2503
1748	=item $player_object->may ("access")	2504	=item $player_object->may ("access")
1749		2505
1750	Returns wether the given player is authorized to access resource "access"	2506	Returns wether the given player is authorized to access resource "access"
…		…
1763		2519
1764	=item $player_object->enter_link	2520	=item $player_object->enter_link
1765		2521
1766	Freezes the player and moves him/her to a special map (C<{link}>).	2522	Freezes the player and moves him/her to a special map (C<{link}>).
1767		2523
1768	The player should be reasonably safe there for short amounts of time. You	2524	The player should be reasonably safe there for short amounts of time (e.g.
1769	I<MUST> call C<leave_link> as soon as possible, though.	2525	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2526	though, as the palyer cannot control the character while it is on the link
		2527	map.
1770		2528
1771	Will never block.	2529	Will never block.
1772		2530
1773	=item $player_object->leave_link ($map, $x, $y)	2531	=item $player_object->leave_link ($map, $x, $y)
1774		2532
…		…
1797	$self->deactivate_recursive;	2555	$self->deactivate_recursive;
1798		2556
1799	return if UNIVERSAL::isa $self->map, "ext::map_link";	2557	return if UNIVERSAL::isa $self->map, "ext::map_link";
1800		2558
1801	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2559	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1802	if $self->map;	2560	if $self->map && $self->map->{path} ne "{link}";
1803		2561
1804	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2562	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1805	}	2563	}
1806		2564
1807	sub cf::object::player::leave_link {	2565	sub cf::object::player::leave_link {
1808	my ($self, $map, $x, $y) = @_;	2566	my ($self, $map, $x, $y) = @_;
		2567
		2568	return unless $self->contr->active;
1809		2569
1810	my $link_pos = delete $self->{_link_pos};	2570	my $link_pos = delete $self->{_link_pos};
1811		2571
1812	unless ($map) {	2572	unless ($map) {
1813	# restore original map position	2573	# restore original map position
…		…
1824	($x, $y) = (-1, -1)	2584	($x, $y) = (-1, -1)
1825	unless (defined $x) && (defined $y);	2585	unless (defined $x) && (defined $y);
1826		2586
1827	# use -1 or undef as default coordinates, not 0, 0	2587	# use -1 or undef as default coordinates, not 0, 0
1828	($x, $y) = ($map->enter_x, $map->enter_y)	2588	($x, $y) = ($map->enter_x, $map->enter_y)
1829	if $x <=0 && $y <= 0;	2589	if $x <= 0 && $y <= 0;
1830		2590
1831	$map->load;	2591	$map->load;
1832	$map->load_diag;	2592	$map->load_neighbours;
1833		2593
1834	return unless $self->contr->active;	2594	return unless $self->contr->active;
1835	$self->activate_recursive;
1836		2595
1837	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2596	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1838	$self->enter_map ($map, $x, $y);	2597	$self->enter_map ($map, $x, $y);
1839	}
1840		2598
1841	cf::player->attach (	2599	# only activate afterwards, to support waiting in hooks
1842	on_logout => sub {	2600	$self->activate_recursive;
1843	my ($pl) = @_;	2601	}
1844		2602
1845	# abort map switching before logout	2603	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1846	if ($pl->ob->{_link_pos}) {
1847	cf::sync_job {
1848	$pl->ob->leave_link
1849	};
1850	}
1851	},
1852	on_login => sub {
1853	my ($pl) = @_;
1854		2604
1855	# try to abort aborted map switching on player login :)	2605	Moves the player to the given map-path and coordinates by first freezing
1856	# should happen only on crashes	2606	her, loading and preparing them map, calling the provided $check callback
1857	if ($pl->ob->{_link_pos}) {	2607	that has to return the map if sucecssful, and then unfreezes the player on
1858	$pl->ob->enter_link;	2608	the new (success) or old (failed) map position. In either case, $done will
1859	(async {	2609	be called at the end of this process.
1860	$pl->ob->reply (undef,
1861	"There was an internal problem at your last logout, "
1862	. "the server will try to bring you to your intended destination in a second.",
1863	cf::NDI_RED);
1864	# we need this sleep as the login has a concurrent enter_exit running
1865	# and this sleep increases chances of the player not ending up in scorn
1866	Coro::Timer::sleep 1;
1867	$pl->ob->leave_link;
1868	})->prio (2);
1869	}
1870	},
1871	);
1872		2610
1873	=item $player_object->goto ($path, $x, $y)	2611	Note that $check will be called with a potentially non-loaded map, so if
		2612	it needs a loaded map it has to call C<< ->load >>.
1874		2613
1875	=cut	2614	=cut
		2615
		2616	our $GOTOGEN;
1876		2617
1877	sub cf::object::player::goto {	2618	sub cf::object::player::goto {
1878	my ($self, $path, $x, $y) = @_;	2619	my ($self, $path, $x, $y, $check, $done) = @_;
		2620
		2621	# do generation counting so two concurrent goto's will be executed in-order
		2622	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1879		2623
1880	$self->enter_link;	2624	$self->enter_link;
1881		2625
1882	(async {	2626	(async {
		2627	$Coro::current->{desc} = "player::goto $path $x $y";
		2628
		2629	# *tag paths override both path and x|y
		2630	if ($path =~ /^\*(.*)$/) {
		2631	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2632	my $ob = $obs[rand @obs];
		2633
		2634	# see if we actually can go there
		2635	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2636	$ob = $obs[rand @obs];
		2637	} else {
		2638	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2639	}
		2640	# else put us there anyways for now #d#
		2641
		2642	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2643	} else {
		2644	($path, $x, $y) = (undef, undef, undef);
		2645	}
		2646	}
		2647
1883	my $map = eval {	2648	my $map = eval {
1884	my $map = cf::map::find $path;	2649	my $map = defined $path ? cf::map::find $path : undef;
		2650
		2651	if ($map) {
1885	$map = $map->customise_for ($self) if $map;	2652	$map = $map->customise_for ($self);
		2653	$map = $check->($map) if $check && $map;
		2654	} else {
		2655	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2656	}
		2657
1886	$map	2658	$map
		2659	};
		2660
		2661	if ($@) {
		2662	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2663	LOG llevError | logBacktrace, Carp::longmess $@;
1887	} or	2664	}
1888	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1889		2665
		2666	if ($gen == $self->{_goto_generation}) {
		2667	delete $self->{_goto_generation};
1890	$self->leave_link ($map, $x, $y);	2668	$self->leave_link ($map, $x, $y);
		2669	}
		2670
		2671	$done->() if $done;
1891	})->prio (1);	2672	})->prio (1);
1892	}	2673	}
1893		2674
1894	=item $player_object->enter_exit ($exit_object)	2675	=item $player_object->enter_exit ($exit_object)
1895		2676
…		…
1915	}	2696	}
1916		2697
1917	sub prepare_random_map {	2698	sub prepare_random_map {
1918	my ($exit) = @_;	2699	my ($exit) = @_;
1919		2700
1920	my $guard = cf::lock_acquire "exit_prepare:$exit";
1921
1922	# all this does is basically replace the /! path by	2701	# all this does is basically replace the /! path by
1923	# a new random map path (?random/...) with a seed	2702	# a new random map path (?random/...) with a seed
1924	# that depends on the exit object	2703	# that depends on the exit object
1925		2704
1926	my $rmp = parse_random_map_params $exit->msg;	2705	my $rmp = parse_random_map_params $exit->msg;
…		…
1928	if ($exit->map) {	2707	if ($exit->map) {
1929	$rmp->{region} = $exit->region->name;	2708	$rmp->{region} = $exit->region->name;
1930	$rmp->{origin_map} = $exit->map->path;	2709	$rmp->{origin_map} = $exit->map->path;
1931	$rmp->{origin_x} = $exit->x;	2710	$rmp->{origin_x} = $exit->x;
1932	$rmp->{origin_y} = $exit->y;	2711	$rmp->{origin_y} = $exit->y;
		2712
		2713	$exit->map->touch;
1933	}	2714	}
1934		2715
1935	$rmp->{random_seed} ||= $exit->random_seed;	2716	$rmp->{random_seed} ||= $exit->random_seed;
1936		2717
1937	my $data = cf::to_json $rmp;	2718	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1938	my $md5 = Digest::MD5::md5_hex $data;	2719	my $md5 = Digest::MD5::md5_hex $data;
1939	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2720	my $meta = "$RANDOMDIR/$md5.meta";
1940		2721
1941	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2722	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1942	aio_write $fh, 0, (length $data), $data, 0;	2723	aio_write $fh, 0, (length $data), $data, 0;
1943	undef $fh;	2724	undef $fh;
1944	aio_rename "$meta~", $meta;	2725	aio_rename "$meta~", $meta;
1945		2726
		2727	my $slaying = "?random/$md5";
		2728
		2729	if ($exit->valid) {
1946	$exit->slaying ("?random/$md5");	2730	$exit->slaying ("?random/$md5");
1947	$exit->msg (undef);	2731	$exit->msg (undef);
		2732	}
1948	}	2733	}
1949	}	2734	}
1950		2735
1951	sub cf::object::player::enter_exit {	2736	sub cf::object::player::enter_exit {
1952	my ($self, $exit) = @_;	2737	my ($self, $exit) = @_;
1953		2738
1954	return unless $self->type == cf::PLAYER;	2739	return unless $self->type == cf::PLAYER;
1955		2740
1956	if ($exit->slaying eq "/!") {
1957	#TODO: this should de-fi-ni-te-ly not be a sync-job
1958	cf::sync_job { prepare_random_map $exit };
1959	}
1960
1961	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1962	my $hp = $exit->stats->hp;
1963	my $sp = $exit->stats->sp;
1964
1965	$self->enter_link;	2741	$self->enter_link;
1966		2742
1967	(async {	2743	(async {
1968	$self->deactivate_recursive; # just to be sure	2744	$Coro::current->{desc} = "enter_exit";
		2745
1969	unless (eval {	2746	unless (eval {
		2747	$self->deactivate_recursive; # just to be sure
		2748
		2749	# random map handling
		2750	{
		2751	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2752
		2753	prepare_random_map $exit
		2754	if $exit->slaying eq "/!";
		2755	}
		2756
		2757	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2758	my $x = $exit->stats->hp;
		2759	my $y = $exit->stats->sp;
		2760
1970	$self->goto ($slaying, $hp, $sp);	2761	$self->goto ($map, $x, $y);
1971		2762
		2763	# if exit is damned, update players death & WoR home-position
		2764	$self->contr->savebed ($map, $x, $y)
		2765	if $exit->flag (cf::FLAG_DAMNED);
		2766
1972	1;	2767	1
1973	}) {	2768	}) {
1974	$self->message ("Something went wrong deep within the crossfire server. "	2769	$self->message ("Something went wrong deep within the deliantra server. "
1975	. "I'll try to bring you back to the map you were before. "	2770	. "I'll try to bring you back to the map you were before. "
1976	. "Please report this to the dungeon master!",	2771	. "Please report this to the dungeon master!",
1977	cf::NDI_UNIQUE | cf::NDI_RED);	2772	cf::NDI_UNIQUE | cf::NDI_RED);
1978		2773
1979	warn "ERROR in enter_exit: $@";	2774	warn "ERROR in enter_exit: $@";
1980	$self->leave_link;	2775	$self->leave_link;
1981	}	2776	}
1982	})->prio (1);	2777	})->prio (1);
…		…
1998		2793
1999	utf8::encode $text;	2794	utf8::encode $text;
2000	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2795	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2001	}	2796	}
2002		2797
		2798	=item $client->send_big_packet ($pkt)
		2799
		2800	Like C<send_packet>, but tries to compress large packets, and fragments
		2801	them as required.
		2802
		2803	=cut
		2804
		2805	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2806
		2807	sub cf::client::send_big_packet {
		2808	my ($self, $pkt) = @_;
		2809
		2810	# try lzf for large packets
		2811	$pkt = "lzf " . Compress::LZF::compress $pkt
		2812	if 1024 <= length $pkt and $self->{can_lzf};
		2813
		2814	# split very large packets
		2815	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2816	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2817	$pkt = "frag";
		2818	}
		2819
		2820	$self->send_packet ($pkt);
		2821	}
		2822
		2823	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2824
		2825	Send a drawinfo or msg packet to the client, formatting the msg for the
		2826	client if neccessary. C<$type> should be a string identifying the type of
		2827	the message, with C<log> being the default. If C<$color> is negative, suppress
		2828	the message unless the client supports the msg packet.
		2829
		2830	=cut
		2831
		2832	# non-persistent channels (usually the info channel)
		2833	our %CHANNEL = (
		2834	"c/motd" => {
		2835	id => "infobox",
		2836	title => "MOTD",
		2837	reply => undef,
		2838	tooltip => "The message of the day",
		2839	},
		2840	"c/identify" => {
		2841	id => "infobox",
		2842	title => "Identify",
		2843	reply => undef,
		2844	tooltip => "Items recently identified",
		2845	},
		2846	"c/examine" => {
		2847	id => "infobox",
		2848	title => "Examine",
		2849	reply => undef,
		2850	tooltip => "Signs and other items you examined",
		2851	},
		2852	"c/shopinfo" => {
		2853	id => "infobox",
		2854	title => "Shop Info",
		2855	reply => undef,
		2856	tooltip => "What your bargaining skill tells you about the shop",
		2857	},
		2858	"c/book" => {
		2859	id => "infobox",
		2860	title => "Book",
		2861	reply => undef,
		2862	tooltip => "The contents of a note or book",
		2863	},
		2864	"c/lookat" => {
		2865	id => "infobox",
		2866	title => "Look",
		2867	reply => undef,
		2868	tooltip => "What you saw there",
		2869	},
		2870	"c/who" => {
		2871	id => "infobox",
		2872	title => "Players",
		2873	reply => undef,
		2874	tooltip => "Shows players who are currently online",
		2875	},
		2876	"c/body" => {
		2877	id => "infobox",
		2878	title => "Body Parts",
		2879	reply => undef,
		2880	tooltip => "Shows which body parts you posess and are available",
		2881	},
		2882	"c/statistics" => {
		2883	id => "infobox",
		2884	title => "Statistics",
		2885	reply => undef,
		2886	tooltip => "Shows your primary statistics",
		2887	},
		2888	"c/skills" => {
		2889	id => "infobox",
		2890	title => "Skills",
		2891	reply => undef,
		2892	tooltip => "Shows your experience per skill and item power",
		2893	},
		2894	"c/shopitems" => {
		2895	id => "infobox",
		2896	title => "Shop Items",
		2897	reply => undef,
		2898	tooltip => "Shows the items currently for sale in this shop",
		2899	},
		2900	"c/resistances" => {
		2901	id => "infobox",
		2902	title => "Resistances",
		2903	reply => undef,
		2904	tooltip => "Shows your resistances",
		2905	},
		2906	"c/pets" => {
		2907	id => "infobox",
		2908	title => "Pets",
		2909	reply => undef,
		2910	tooltip => "Shows information abotu your pets/a specific pet",
		2911	},
		2912	"c/perceiveself" => {
		2913	id => "infobox",
		2914	title => "Perceive Self",
		2915	reply => undef,
		2916	tooltip => "You gained detailed knowledge about yourself",
		2917	},
		2918	"c/uptime" => {
		2919	id => "infobox",
		2920	title => "Uptime",
		2921	reply => undef,
		2922	tooltip => "How long the server has been running since last restart",
		2923	},
		2924	"c/mapinfo" => {
		2925	id => "infobox",
		2926	title => "Map Info",
		2927	reply => undef,
		2928	tooltip => "Information related to the maps",
		2929	},
		2930	"c/party" => {
		2931	id => "party",
		2932	title => "Party",
		2933	reply => "gsay ",
		2934	tooltip => "Messages and chat related to your party",
		2935	},
		2936	"c/death" => {
		2937	id => "death",
		2938	title => "Death",
		2939	reply => undef,
		2940	tooltip => "Reason for and more info about your most recent death",
		2941	},
		2942	"c/say" => $SAY_CHANNEL,
		2943	"c/chat" => $CHAT_CHANNEL,
		2944	);
		2945
		2946	sub cf::client::send_msg {
		2947	my ($self, $channel, $msg, $color, @extra) = @_;
		2948
		2949	$msg = $self->pl->expand_cfpod ($msg)
		2950	unless $color & cf::NDI_VERBATIM;
		2951
		2952	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2953
		2954	# check predefined channels, for the benefit of C
		2955	if ($CHANNEL{$channel}) {
		2956	$channel = $CHANNEL{$channel};
		2957
		2958	$self->ext_msg (channel_info => $channel);
		2959	$channel = $channel->{id};
		2960
		2961	} elsif (ref $channel) {
		2962	# send meta info to client, if not yet sent
		2963	unless (exists $self->{channel}{$channel->{id}}) {
		2964	$self->{channel}{$channel->{id}} = $channel;
		2965	$self->ext_msg (channel_info => $channel);
		2966	}
		2967
		2968	$channel = $channel->{id};
		2969	}
		2970
		2971	return unless @extra || length $msg;
		2972
		2973	# default colour, mask it out
		2974	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2975	if $color & cf::NDI_DEF;
		2976
		2977	my $pkt = "msg "
		2978	. $self->{json_coder}->encode (
		2979	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2980	);
		2981
		2982	$self->send_big_packet ($pkt);
		2983	}
		2984
		2985	=item $client->ext_msg ($type, @msg)
		2986
		2987	Sends an ext event to the client.
		2988
		2989	=cut
		2990
		2991	sub cf::client::ext_msg($$@) {
		2992	my ($self, $type, @msg) = @_;
		2993
		2994	if ($self->extcmd == 2) {
		2995	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2996	} elsif ($self->extcmd == 1) { # TODO: remove
		2997	push @msg, msgtype => "event_$type";
		2998	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2999	}
		3000	}
		3001
		3002	=item $client->ext_reply ($msgid, @msg)
		3003
		3004	Sends an ext reply to the client.
		3005
		3006	=cut
		3007
		3008	sub cf::client::ext_reply($$@) {
		3009	my ($self, $id, @msg) = @_;
		3010
		3011	if ($self->extcmd == 2) {
		3012	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3013	} elsif ($self->extcmd == 1) {
		3014	#TODO: version 1, remove
		3015	unshift @msg, msgtype => "reply", msgid => $id;
		3016	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3017	}
		3018	}
2003		3019
2004	=item $success = $client->query ($flags, "text", \&cb)	3020	=item $success = $client->query ($flags, "text", \&cb)
2005		3021
2006	Queues a query to the client, calling the given callback with	3022	Queues a query to the client, calling the given callback with
2007	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3023	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2008	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3024	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2009		3025
2010	Queries can fail, so check the return code. Or don't, as queries will become	3026	Queries can fail, so check the return code. Or don't, as queries will
2011	reliable at some point in the future.	3027	become reliable at some point in the future.
2012		3028
2013	=cut	3029	=cut
2014		3030
2015	sub cf::client::query {	3031	sub cf::client::query {
2016	my ($self, $flags, $text, $cb) = @_;	3032	my ($self, $flags, $text, $cb) = @_;
…		…
2024	utf8::encode $text;	3040	utf8::encode $text;
2025	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3041	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2026		3042
2027	$self->send_packet ($self->{query_queue}[0][0])	3043	$self->send_packet ($self->{query_queue}[0][0])
2028	if @{ $self->{query_queue} } == 1;	3044	if @{ $self->{query_queue} } == 1;
		3045
		3046	1
2029	}	3047	}
2030		3048
2031	cf::client->attach (	3049	cf::client->attach (
		3050	on_connect => sub {
		3051	my ($ns) = @_;
		3052
		3053	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3054	},
2032	on_reply => sub {	3055	on_reply => sub {
2033	my ($ns, $msg) = @_;	3056	my ($ns, $msg) = @_;
2034		3057
2035	# this weird shuffling is so that direct followup queries	3058	# this weird shuffling is so that direct followup queries
2036	# get handled first	3059	# get handled first
…		…
2048	} else {	3071	} else {
2049	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3072	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2050	}	3073	}
2051	}	3074	}
2052	},	3075	},
		3076	on_exticmd => sub {
		3077	my ($ns, $buf) = @_;
		3078
		3079	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3080
		3081	if (ref $msg) {
		3082	my ($type, $reply, @payload) =
		3083	"ARRAY" eq ref $msg
		3084	? @$msg
		3085	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3086
		3087	my @reply;
		3088
		3089	if (my $cb = $EXTICMD{$type}) {
		3090	@reply = $cb->($ns, @payload);
		3091	}
		3092
		3093	$ns->ext_reply ($reply, @reply)
		3094	if $reply;
		3095
		3096	} else {
		3097	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3098	}
		3099
		3100	cf::override;
		3101	},
2053	);	3102	);
2054		3103
2055	=item $client->async (\&cb)	3104	=item $client->async (\&cb)
2056		3105
2057	Create a new coroutine, running the specified callback. The coroutine will	3106	Create a new coroutine, running the specified callback. The coroutine will
…		…
2098	our $safe = new Safe "safe";	3147	our $safe = new Safe "safe";
2099	our $safe_hole = new Safe::Hole;	3148	our $safe_hole = new Safe::Hole;
2100		3149
2101	$SIG{FPE} = 'IGNORE';	3150	$SIG{FPE} = 'IGNORE';
2102		3151
2103	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3152	$safe->permit_only (Opcode::opset qw(
		3153	:base_core :base_mem :base_orig :base_math :base_loop
		3154	grepstart grepwhile mapstart mapwhile
		3155	sort time
		3156	));
2104		3157
2105	# here we export the classes and methods available to script code	3158	# here we export the classes and methods available to script code
2106		3159
2107	=pod	3160	=pod
2108		3161
2109	The following fucntions and emthods are available within a safe environment:	3162	The following functions and methods are available within a safe environment:
2110		3163
2111	cf::object contr pay_amount pay_player map	3164	cf::object
		3165	contr pay_amount pay_player map x y force_find force_add destroy
		3166	insert remove name archname title slaying race decrease split
		3167	value
		3168
2112	cf::object::player player	3169	cf::object::player
2113	cf::player peaceful	3170	player
2114	cf::map trigger	3171
		3172	cf::player
		3173	peaceful
		3174
		3175	cf::map
		3176	trigger
2115		3177
2116	=cut	3178	=cut
2117		3179
2118	for (	3180	for (
2119	["cf::object" => qw(contr pay_amount pay_player map)],	3181	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3182	insert remove inv nrof name archname title slaying race
		3183	decrease split destroy change_exp value msg lore send_msg)],
2120	["cf::object::player" => qw(player)],	3184	["cf::object::player" => qw(player)],
2121	["cf::player" => qw(peaceful)],	3185	["cf::player" => qw(peaceful send_msg)],
2122	["cf::map" => qw(trigger)],	3186	["cf::map" => qw(trigger)],
2123	) {	3187	) {
2124	no strict 'refs';	3188	no strict 'refs';
2125	my ($pkg, @funs) = @$_;	3189	my ($pkg, @funs) = @$_;
2126	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3190	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2144		3208
2145	my $qcode = $code;	3209	my $qcode = $code;
2146	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3210	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2147	$qcode =~ s/\n/\\n/g;	3211	$qcode =~ s/\n/\\n/g;
2148		3212
		3213	%vars = (_dummy => 0) unless %vars;
		3214
		3215	my @res;
2149	local $_;	3216	local $_;
2150	local @safe::cf::_safe_eval_args = values %vars;
2151		3217
2152	my $eval =	3218	my $eval =
2153	"do {\n"	3219	"do {\n"
2154	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3220	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2155	. "#line 0 \"{$qcode}\"\n"	3221	. "#line 0 \"{$qcode}\"\n"
2156	. $code	3222	. $code
2157	. "\n}"	3223	. "\n}"
2158	;	3224	;
2159		3225
		3226	if ($CFG{safe_eval}) {
2160	sub_generation_inc;	3227	sub_generation_inc;
		3228	local @safe::cf::_safe_eval_args = values %vars;
2161	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3229	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2162	sub_generation_inc;	3230	sub_generation_inc;
		3231	} else {
		3232	local @cf::_safe_eval_args = values %vars;
		3233	@res = wantarray ? eval eval : scalar eval $eval;
		3234	}
2163		3235
2164	if ($@) {	3236	if ($@) {
2165	warn "$@";	3237	warn "$@";
2166	warn "while executing safe code '$code'\n";	3238	warn "while executing safe code '$code'\n";
2167	warn "with arguments " . (join " ", %vars) . "\n";	3239	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2186	=cut	3258	=cut
2187		3259
2188	sub register_script_function {	3260	sub register_script_function {
2189	my ($fun, $cb) = @_;	3261	my ($fun, $cb) = @_;
2190		3262
2191	no strict 'refs';	3263	$fun = "safe::$fun" if $CFG{safe_eval};
2192	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3264	*$fun = $safe_hole->wrap ($cb);
2193	}	3265	}
2194		3266
2195	=back	3267	=back
2196		3268
2197	=cut	3269	=cut
2198
2199	#############################################################################
2200
2201	=head2 EXTENSION DATABASE SUPPORT
2202
2203	Crossfire maintains a very simple database for extension use. It can
2204	currently store anything that can be serialised using Storable, which
2205	excludes objects.
2206
2207	The parameter C<$family> should best start with the name of the extension
2208	using it, it should be unique.
2209
2210	=over 4
2211
2212	=item $value = cf::db_get $family => $key
2213
2214	Returns a single value from the database.
2215
2216	=item cf::db_put $family => $key => $value
2217
2218	Stores the given C<$value> in the family.
2219
2220	=cut
2221
2222	our $DB;
2223
2224	sub db_init {
2225	unless ($DB) {
2226	$DB = BDB::db_create $DB_ENV;
2227
2228	cf::sync_job {
2229	eval {
2230	$DB->set_flags (BDB::CHKSUM);
2231
2232	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2233	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2234	cf::cleanup "db_open(db): $!" if $!;
2235	};
2236	cf::cleanup "db_open(db): $@" if $@;
2237	};
2238
2239	my $path = cf::localdir . "/database.pst";
2240	if (stat $path) {
2241	cf::sync_job {
2242	my $pst = Storable::retrieve $path;
2243
2244	cf::db_put (board => data => $pst->{board});
2245	cf::db_put (guildrules => data => $pst->{guildrules});
2246	cf::db_put (rent => balance => $pst->{rent}{balance});
2247	BDB::db_env_txn_checkpoint $DB_ENV;
2248
2249	unlink $path;
2250	};
2251	}
2252	}
2253	}
2254
2255	sub db_get($$) {
2256	my $key = "$_[0]/$_[1]";
2257
2258	cf::sync_job {
2259	BDB::db_get $DB, undef, $key, my $data;
2260
2261	$! ? ()
2262	: Compress::LZF::sthaw $data
2263	}
2264	}
2265
2266	sub db_put($$$) {
2267	BDB::dbreq_pri 4;
2268	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2269	}
2270		3270
2271	#############################################################################	3271	#############################################################################
2272	# the server's init and main functions	3272	# the server's init and main functions
2273		3273
2274	sub load_faces {	3274	sub load_facedata($) {
2275	my $path = sprintf "%s/faces", cf::datadir;	3275	my ($path) = @_;
2276		3276
		3277	# HACK to clear player env face cache, we need some signal framework
		3278	# for this (global event?)
		3279	%ext::player_env::MUSIC_FACE_CACHE = ();
		3280
		3281	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3282
2277	warn "loading faces from $path\n";	3283	warn "loading facedata from $path\n";
2278		3284
2279	my $faces;	3285	my $facedata;
2280	0 < aio_load $path, $faces	3286	0 < aio_load $path, $facedata
2281	or die "$path: $!";	3287	or die "$path: $!";
2282		3288
2283	Coro::cede;
2284	$faces = Storable::thaw $faces;	3289	$facedata = Coro::Storable::thaw $facedata;
2285	Coro::cede;
2286		3290
2287	my $meta = delete $faces->{""};
2288	$meta->{version} == 1	3291	$facedata->{version} == 2
2289	or cf::cleanup "$path: version mismatch, cannot proceed.";	3292	or cf::cleanup "$path: version mismatch, cannot proceed.";
2290		3293
		3294	# patch in the exptable
		3295	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3296	$facedata->{resource}{"res/exp_table"} = {
		3297	type => FT_RSRC,
		3298	data => $exp_table,
		3299	hash => (Digest::MD5::md5 $exp_table),
		3300	};
		3301	cf::cede_to_tick;
		3302
		3303	{
		3304	my $faces = $facedata->{faceinfo};
		3305
2291	while (my ($face, $info) = each %$faces) {	3306	while (my ($face, $info) = each %$faces) {
2292	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3307	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2293	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3308
		3309	cf::face::set_visibility $idx, $info->{visibility};
		3310	cf::face::set_magicmap $idx, $info->{magicmap};
2294	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3311	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2295	Coro::cede;	3312	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2296	}
2297		3313
		3314	cf::cede_to_tick;
		3315	}
		3316
2298	while (my ($face, $info) = each %$faces) {	3317	while (my ($face, $info) = each %$faces) {
2299	next unless $info->{smooth};	3318	next unless $info->{smooth};
		3319
2300	my $idx = cf::face::find $face	3320	my $idx = cf::face::find $face
2301	or next;	3321	or next;
		3322
2302	if (my $smooth = cf::face::find $info->{smooth}) {	3323	if (my $smooth = cf::face::find $info->{smooth}) {
2303	cf::face::set_smooth $idx, $smooth;	3324	cf::face::set_smooth $idx, $smooth;
		3325	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2304	} else {	3326	} else {
2305	warn "smooth face '$info->{smooth}' not found for face '$face'";	3327	warn "smooth face '$info->{smooth}' not found for face '$face'";
2306	}	3328	}
2307	Coro::cede;	3329
		3330	cf::cede_to_tick;
		3331	}
		3332	}
		3333
2308	}	3334	{
		3335	my $anims = $facedata->{animinfo};
		3336
		3337	while (my ($anim, $info) = each %$anims) {
		3338	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3339	cf::cede_to_tick;
		3340	}
		3341
		3342	cf::anim::invalidate_all; # d'oh
		3343	}
		3344
		3345	{
		3346	my $res = $facedata->{resource};
		3347
		3348	while (my ($name, $info) = each %$res) {
		3349	if (defined $info->{type}) {
		3350	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3351
		3352	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3353	cf::face::set_type $idx, $info->{type};
		3354	} else {
		3355	$RESOURCE{$name} = $info;
		3356	}
		3357
		3358	cf::cede_to_tick;
		3359	}
		3360	}
		3361
		3362	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
2309		3363
2310	1	3364	1
2311	}	3365	}
2312		3366
		3367	cf::global->attach (on_resource_update => sub {
		3368	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3369	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3370
		3371	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3372	my $sound = $soundconf->{compat}[$_]
		3373	or next;
		3374
		3375	my $face = cf::face::find "sound/$sound->[1]";
		3376	cf::sound::set $sound->[0] => $face;
		3377	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3378	}
		3379
		3380	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3381	my $face = cf::face::find "sound/$v";
		3382	cf::sound::set $k => $face;
		3383	}
		3384	}
		3385	});
		3386
		3387	register_exticmd fx_want => sub {
		3388	my ($ns, $want) = @_;
		3389
		3390	while (my ($k, $v) = each %$want) {
		3391	$ns->fx_want ($k, $v);
		3392	}
		3393	};
		3394
		3395	sub load_resource_file($) {
		3396	my $guard = lock_acquire "load_resource_file";
		3397
		3398	my $status = load_resource_file_ $_[0];
		3399	get_slot 0.1, 100;
		3400	cf::arch::commit_load;
		3401
		3402	$status
		3403	}
		3404
		3405	sub reload_regions {
		3406	# HACK to clear player env face cache, we need some signal framework
		3407	# for this (global event?)
		3408	%ext::player_env::MUSIC_FACE_CACHE = ();
		3409
		3410	load_resource_file "$MAPDIR/regions"
		3411	or die "unable to load regions file\n";
		3412
		3413	for (cf::region::list) {
		3414	$_->{match} = qr/$_->{match}/
		3415	if exists $_->{match};
		3416	}
		3417	}
		3418
		3419	sub reload_facedata {
		3420	load_facedata "$DATADIR/facedata"
		3421	or die "unable to load facedata\n";
		3422	}
		3423
		3424	sub reload_archetypes {
		3425	load_resource_file "$DATADIR/archetypes"
		3426	or die "unable to load archetypes\n";
		3427	}
		3428
		3429	sub reload_treasures {
		3430	load_resource_file "$DATADIR/treasures"
		3431	or die "unable to load treasurelists\n";
		3432	}
		3433
2313	sub reload_resources {	3434	sub reload_resources {
2314	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3435	warn "reloading resource files...\n";
2315	or die "unable to load regions file\n";#d#	3436
2316	load_faces	3437	reload_facedata;
2317	or die "unable to load faces\n";#d#	3438	reload_archetypes;
2318	}
2319
2320	sub init {
2321	reload_resources;	3439	reload_regions;
2322	}	3440	reload_treasures;
2323		3441
2324	sub cfg_load {	3442	warn "finished reloading resource files\n";
		3443	}
		3444
		3445	sub reload_config {
		3446	warn "reloading config file...\n";
		3447
2325	open my $fh, "<:utf8", cf::confdir . "/config"	3448	open my $fh, "<:utf8", "$CONFDIR/config"
2326	or return;	3449	or return;
2327		3450
2328	local $/;	3451	local $/;
2329	*CFG = YAML::Syck::Load <$fh>;	3452	*CFG = YAML::XS::Load scalar <$fh>;
2330		3453
2331	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3454	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2332		3455
2333	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3456	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2334	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3457	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2338	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3461	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2339	and die "WARNING: m(un)lockall failed: $!\n";	3462	and die "WARNING: m(un)lockall failed: $!\n";
2340	};	3463	};
2341	warn $@ if $@;	3464	warn $@ if $@;
2342	}	3465	}
		3466
		3467	warn "finished reloading resource files\n";
		3468	}
		3469
		3470	sub pidfile() {
		3471	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3472	or die "$PIDFILE: $!";
		3473	flock $fh, &Fcntl::LOCK_EX
		3474	or die "$PIDFILE: flock: $!";
		3475	$fh
		3476	}
		3477
		3478	# make sure only one server instance is running at any one time
		3479	sub atomic {
		3480	my $fh = pidfile;
		3481
		3482	my $pid = <$fh>;
		3483	kill 9, $pid if $pid > 0;
		3484
		3485	seek $fh, 0, 0;
		3486	print $fh $$;
		3487	}
		3488
		3489	sub main_loop {
		3490	warn "EV::loop starting\n";
		3491	if (1) {
		3492	EV::loop;
		3493	}
		3494	warn "EV::loop returned\n";
		3495	goto &main_loop unless $REALLY_UNLOOP;
2343	}	3496	}
2344		3497
2345	sub main {	3498	sub main {
		3499	cf::init_globals; # initialise logging
		3500
		3501	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3502	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3503	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3504	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3505
		3506	cf::init_experience;
		3507	cf::init_anim;
		3508	cf::init_attackmess;
		3509	cf::init_dynamic;
		3510
		3511	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3512
2346	# we must not ever block the main coroutine	3513	# we must not ever block the main coroutine
2347	local $Coro::idle = sub {	3514	local $Coro::idle = sub {
2348	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3515	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2349	(async {	3516	(async {
2350	Event::one_event;	3517	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3518	EV::loop EV::LOOP_ONESHOT;
2351	})->prio (Coro::PRIO_MAX);	3519	})->prio (Coro::PRIO_MAX);
2352	};	3520	};
2353		3521
2354	cfg_load;	3522	evthread_start IO::AIO::poll_fileno;
		3523
		3524	cf::sync_job {
		3525	cf::load_settings;
		3526	cf::load_materials;
		3527
		3528	reload_resources;
		3529	reload_config;
2355	db_init;	3530	db_init;
		3531
		3532	cf::init_uuid;
		3533	cf::init_signals;
		3534	cf::init_commands;
		3535	cf::init_skills;
		3536
		3537	cf::init_beforeplay;
		3538
		3539	atomic;
		3540
2356	load_extensions;	3541	load_extensions;
2357		3542
2358	$TICK_WATCHER->start;	3543	utime time, time, $RUNTIMEFILE;
2359	Event::loop;	3544
		3545	# no (long-running) fork's whatsoever before this point(!)
		3546	use POSIX ();
		3547	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3548
		3549	(pop @POST_INIT)->(0) while @POST_INIT;
		3550	};
		3551
		3552	main_loop;
2360	}	3553	}
2361		3554
2362	#############################################################################	3555	#############################################################################
2363	# initialisation and cleanup	3556	# initialisation and cleanup
2364		3557
2365	# install some emergency cleanup handlers	3558	# install some emergency cleanup handlers
2366	BEGIN {	3559	BEGIN {
		3560	our %SIGWATCHER = ();
2367	for my $signal (qw(INT HUP TERM)) {	3561	for my $signal (qw(INT HUP TERM)) {
2368	Event->signal (	3562	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2369	reentrant => 0,
2370	data => WF_AUTOCANCEL,
2371	signal => $signal,
2372	prio => 0,
2373	cb => sub {
2374	cf::cleanup "SIG$signal";	3563	cf::cleanup "SIG$signal";
2375	},
2376	);	3564	};
		3565	}
		3566	}
		3567
		3568	sub write_runtime_sync {
		3569	# first touch the runtime file to show we are still running:
		3570	# the fsync below can take a very very long time.
		3571
		3572	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3573
		3574	my $guard = cf::lock_acquire "write_runtime";
		3575
		3576	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3577	or return;
		3578
		3579	my $value = $cf::RUNTIME + 90 + 10;
		3580	# 10 is the runtime save interval, for a monotonic clock
		3581	# 60 allows for the watchdog to kill the server.
		3582
		3583	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3584	and return;
		3585
		3586	# always fsync - this file is important
		3587	aio_fsync $fh
		3588	and return;
		3589
		3590	# touch it again to show we are up-to-date
		3591	aio_utime $fh, undef, undef;
		3592
		3593	close $fh
		3594	or return;
		3595
		3596	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3597	and return;
		3598
		3599	warn "runtime file written.\n";
		3600
2377	}	3601	1
		3602	}
		3603
		3604	our $uuid_lock;
		3605	our $uuid_skip;
		3606
		3607	sub write_uuid_sync($) {
		3608	$uuid_skip ||= $_[0];
		3609
		3610	return if $uuid_lock;
		3611	local $uuid_lock = 1;
		3612
		3613	my $uuid = "$LOCALDIR/uuid";
		3614
		3615	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3616	or return;
		3617
		3618	my $value = uuid_seq uuid_cur;
		3619
		3620	unless ($value) {
		3621	warn "cowardly refusing to write zero uuid value!\n";
		3622	return;
		3623	}
		3624
		3625	my $value = uuid_str $value + $uuid_skip;
		3626	$uuid_skip = 0;
		3627
		3628	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3629	and return;
		3630
		3631	# always fsync - this file is important
		3632	aio_fsync $fh
		3633	and return;
		3634
		3635	close $fh
		3636	or return;
		3637
		3638	aio_rename "$uuid~", $uuid
		3639	and return;
		3640
		3641	warn "uuid file written ($value).\n";
		3642
		3643	1
		3644
		3645	}
		3646
		3647	sub write_uuid($$) {
		3648	my ($skip, $sync) = @_;
		3649
		3650	$sync ? write_uuid_sync $skip
		3651	: async { write_uuid_sync $skip };
2378	}	3652	}
2379		3653
2380	sub emergency_save() {	3654	sub emergency_save() {
2381	my $freeze_guard = cf::freeze_mainloop;	3655	my $freeze_guard = cf::freeze_mainloop;
2382		3656
2383	warn "enter emergency perl save\n";	3657	warn "emergency_perl_save: enter\n";
2384		3658
2385	cf::sync_job {	3659	cf::sync_job {
		3660	# this is a trade-off: we want to be very quick here, so
		3661	# save all maps without fsync, and later call a global sync
		3662	# (which in turn might be very very slow)
		3663	local $USE_FSYNC = 0;
		3664
2386	# use a peculiar iteration method to avoid tripping on perl	3665	# use a peculiar iteration method to avoid tripping on perl
2387	# refcount bugs in for. also avoids problems with players	3666	# refcount bugs in for. also avoids problems with players
2388	# and maps saved/destroyed asynchronously.	3667	# and maps saved/destroyed asynchronously.
2389	warn "begin emergency player save\n";	3668	warn "emergency_perl_save: begin player save\n";
2390	for my $login (keys %cf::PLAYER) {	3669	for my $login (keys %cf::PLAYER) {
2391	my $pl = $cf::PLAYER{$login} or next;	3670	my $pl = $cf::PLAYER{$login} or next;
2392	$pl->valid or next;	3671	$pl->valid or next;
		3672	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2393	$pl->save;	3673	$pl->save;
2394	}	3674	}
2395	warn "end emergency player save\n";	3675	warn "emergency_perl_save: end player save\n";
2396		3676
2397	warn "begin emergency map save\n";	3677	warn "emergency_perl_save: begin map save\n";
2398	for my $path (keys %cf::MAP) {	3678	for my $path (keys %cf::MAP) {
2399	my $map = $cf::MAP{$path} or next;	3679	my $map = $cf::MAP{$path} or next;
2400	$map->valid or next;	3680	$map->valid or next;
2401	$map->save;	3681	$map->save;
2402	}	3682	}
2403	warn "end emergency map save\n";	3683	warn "emergency_perl_save: end map save\n";
2404		3684
2405	warn "begin emergency database checkpoint\n";	3685	warn "emergency_perl_save: begin database checkpoint\n";
2406	BDB::db_env_txn_checkpoint $DB_ENV;	3686	BDB::db_env_txn_checkpoint $DB_ENV;
2407	warn "end emergency database checkpoint\n";	3687	warn "emergency_perl_save: end database checkpoint\n";
		3688
		3689	warn "emergency_perl_save: begin write uuid\n";
		3690	write_uuid_sync 1;
		3691	warn "emergency_perl_save: end write uuid\n";
2408	};	3692	};
2409		3693
		3694	warn "emergency_perl_save: starting sync()\n";
		3695	IO::AIO::aio_sync sub {
		3696	warn "emergency_perl_save: finished sync()\n";
		3697	};
		3698
2410	warn "leave emergency perl save\n";	3699	warn "emergency_perl_save: leave\n";
2411	}	3700	}
2412		3701
2413	sub post_cleanup {	3702	sub post_cleanup {
2414	my ($make_core) = @_;	3703	my ($make_core) = @_;
2415		3704
2416	warn Carp::longmess "post_cleanup backtrace"	3705	warn Carp::longmess "post_cleanup backtrace"
2417	if $make_core;	3706	if $make_core;
2418	}
2419		3707
		3708	my $fh = pidfile;
		3709	unlink $PIDFILE if <$fh> == $$;
		3710	}
		3711
		3712	# a safer delete_package, copied from Symbol
		3713	sub clear_package($) {
		3714	my $pkg = shift;
		3715
		3716	# expand to full symbol table name if needed
		3717	unless ($pkg =~ /^main::.*::$/) {
		3718	$pkg = "main$pkg" if $pkg =~ /^::/;
		3719	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3720	$pkg .= '::' unless $pkg =~ /::$/;
		3721	}
		3722
		3723	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3724	my $stem_symtab = *{$stem}{HASH};
		3725
		3726	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3727	or return;
		3728
		3729	# clear all symbols
		3730	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3731	for my $name (keys %$leaf_symtab) {
		3732	_gv_clear *{"$pkg$name"};
		3733	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3734	}
		3735	warn "cleared package $pkg\n";#d#
		3736	}
		3737
2420	sub reload() {	3738	sub do_reload_perl() {
2421	# can/must only be called in main	3739	# can/must only be called in main
2422	if ($Coro::current != $Coro::main) {	3740	if ($Coro::current != $Coro::main) {
2423	warn "can only reload from main coroutine";	3741	warn "can only reload from main coroutine";
2424	return;	3742	return;
2425	}	3743	}
2426		3744
		3745	return if $RELOAD++;
		3746
		3747	my $t1 = EV::time;
		3748
		3749	while ($RELOAD) {
2427	warn "reloading...";	3750	warn "reloading...";
2428		3751
2429	warn "entering sync_job";	3752	warn "entering sync_job";
2430		3753
2431	cf::sync_job {	3754	cf::sync_job {
2432	cf::write_runtime; # external watchdog should not bark	3755	cf::write_runtime_sync; # external watchdog should not bark
2433	cf::emergency_save;	3756	cf::emergency_save;
2434	cf::write_runtime; # external watchdog should not bark	3757	cf::write_runtime_sync; # external watchdog should not bark
2435		3758
2436	warn "syncing database to disk";	3759	warn "syncing database to disk";
2437	BDB::db_env_txn_checkpoint $DB_ENV;	3760	BDB::db_env_txn_checkpoint $DB_ENV;
2438		3761
2439	# if anything goes wrong in here, we should simply crash as we already saved	3762	# if anything goes wrong in here, we should simply crash as we already saved
2440		3763
2441	warn "cancelling all WF_AUTOCANCEL watchers";
2442	for (Event::all_watchers) {
2443	$_->cancel if $_->data & WF_AUTOCANCEL;
2444	}
2445
2446	warn "flushing outstanding aio requests";	3764	warn "flushing outstanding aio requests";
2447	for (;;) {
2448	BDB::flush;
2449	IO::AIO::flush;
2450	Coro::cede;
2451	last unless IO::AIO::nreqs || BDB::nreqs;	3765	while (IO::AIO::nreqs || BDB::nreqs) {
2452	warn "iterate...";	3766	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2453	}
2454
2455	++$RELOAD;
2456
2457	warn "cancelling all extension coros";
2458	$_->cancel for values %EXT_CORO;
2459	%EXT_CORO = ();
2460
2461	warn "removing commands";
2462	%COMMAND = ();
2463
2464	warn "removing ext commands";
2465	%EXTCMD = ();
2466
2467	warn "unloading/nuking all extensions";
2468	for my $pkg (@EXTS) {
2469	warn "... unloading $pkg";
2470
2471	if (my $cb = $pkg->can ("unload")) {
2472	eval {
2473	$cb->($pkg);
2474	1
2475	} or warn "$pkg unloaded, but with errors: $@";
2476	}	3767	}
2477		3768
2478	warn "... nuking $pkg";	3769	warn "cancelling all extension coros";
2479	Symbol::delete_package $pkg;	3770	$_->cancel for values %EXT_CORO;
2480	}	3771	%EXT_CORO = ();
2481		3772
2482	warn "unloading all perl modules loaded from $LIBDIR";	3773	warn "removing commands";
2483	while (my ($k, $v) = each %INC) {	3774	%COMMAND = ();
2484	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2485		3775
		3776	warn "removing ext/exti commands";
		3777	%EXTCMD = ();
		3778	%EXTICMD = ();
		3779
		3780	warn "unloading/nuking all extensions";
		3781	for my $pkg (@EXTS) {
2486	warn "... unloading $k";	3782	warn "... unloading $pkg";
2487	delete $INC{$k};
2488		3783
2489	$k =~ s/\.pm$//;
2490	$k =~ s/\//::/g;
2491
2492	if (my $cb = $k->can ("unload_module")) {	3784	if (my $cb = $pkg->can ("unload")) {
		3785	eval {
2493	$cb->();	3786	$cb->($pkg);
		3787	1
		3788	} or warn "$pkg unloaded, but with errors: $@";
		3789	}
		3790
		3791	warn "... clearing $pkg";
		3792	clear_package $pkg;
2494	}	3793	}
2495		3794
2496	Symbol::delete_package $k;	3795	warn "unloading all perl modules loaded from $LIBDIR";
		3796	while (my ($k, $v) = each %INC) {
		3797	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3798
		3799	warn "... unloading $k";
		3800	delete $INC{$k};
		3801
		3802	$k =~ s/\.pm$//;
		3803	$k =~ s/\//::/g;
		3804
		3805	if (my $cb = $k->can ("unload_module")) {
		3806	$cb->();
		3807	}
		3808
		3809	clear_package $k;
2497	}	3810	}
2498		3811
2499	warn "getting rid of safe::, as good as possible";	3812	warn "getting rid of safe::, as good as possible";
2500	Symbol::delete_package "safe::$_"	3813	clear_package "safe::$_"
2501	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3814	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2502		3815
2503	warn "unloading cf.pm \"a bit\"";	3816	warn "unloading cf.pm \"a bit\"";
2504	delete $INC{"cf.pm"};	3817	delete $INC{"cf.pm"};
		3818	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2505		3819
2506	# don't, removes xs symbols, too,	3820	# don't, removes xs symbols, too,
2507	# and global variables created in xs	3821	# and global variables created in xs
2508	#Symbol::delete_package __PACKAGE__;	3822	#clear_package __PACKAGE__;
2509		3823
2510	warn "unload completed, starting to reload now";	3824	warn "unload completed, starting to reload now";
2511		3825
2512	warn "reloading cf.pm";	3826	warn "reloading cf.pm";
2513	require cf;	3827	require cf;
2514	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3828	cf::_connect_to_perl_1;
2515		3829
2516	warn "loading config and database again";	3830	warn "loading config and database again";
2517	cf::cfg_load;	3831	cf::reload_config;
2518		3832
2519	warn "loading extensions";	3833	warn "loading extensions";
2520	cf::load_extensions;	3834	cf::load_extensions;
2521		3835
		3836	if ($REATTACH_ON_RELOAD) {
2522	warn "reattaching attachments to objects/players";	3837	warn "reattaching attachments to objects/players";
2523	_global_reattach; # objects, sockets	3838	_global_reattach; # objects, sockets
2524	warn "reattaching attachments to maps";	3839	warn "reattaching attachments to maps";
2525	reattach $_ for values %MAP;	3840	reattach $_ for values %MAP;
2526	warn "reattaching attachments to players";	3841	warn "reattaching attachments to players";
2527	reattach $_ for values %PLAYER;	3842	reattach $_ for values %PLAYER;
		3843	}
2528		3844
2529	warn "loading reloadable resources";	3845	warn "running post_init jobs";
2530	reload_resources;	3846	(pop @POST_INIT)->(1) while @POST_INIT;
2531		3847
2532	warn "leaving sync_job";	3848	warn "leaving sync_job";
2533		3849
2534	1	3850	1
2535	} or do {	3851	} or do {
2536	warn $@;	3852	warn $@;
2537	warn "error while reloading, exiting.";	3853	cf::cleanup "error while reloading, exiting.";
2538	exit 1;	3854	};
		3855
		3856	warn "reloaded";
		3857	--$RELOAD;
		3858	}
		3859
		3860	$t1 = EV::time - $t1;
		3861	warn "reload completed in ${t1}s\n";
		3862	};
		3863
		3864	our $RELOAD_WATCHER; # used only during reload
		3865
		3866	sub reload_perl() {
		3867	# doing reload synchronously and two reloads happen back-to-back,
		3868	# coro crashes during coro_state_free->destroy here.
		3869
		3870	$RELOAD_WATCHER ||= cf::async {
		3871	Coro::AIO::aio_wait cache_extensions;
		3872
		3873	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3874	do_reload_perl;
		3875	undef $RELOAD_WATCHER;
		3876	};
2539	};	3877	};
2540		3878	}
2541	warn "reloaded";
2542	};
2543
2544	our $RELOAD_WATCHER; # used only during reload
2545		3879
2546	register_command "reload" => sub {	3880	register_command "reload" => sub {
2547	my ($who, $arg) = @_;	3881	my ($who, $arg) = @_;
2548		3882
2549	if ($who->flag (FLAG_WIZ)) {	3883	if ($who->flag (FLAG_WIZ)) {
2550	$who->message ("reloading server.");	3884	$who->message ("reloading server.");
2551		3885	async {
2552	# doing reload synchronously and two reloads happen back-to-back,	3886	$Coro::current->{desc} = "perl_reload";
2553	# coro crashes during coro_state_free->destroy here.
2554
2555	$RELOAD_WATCHER ||= Event->timer (
2556	reentrant => 0,
2557	after => 0,
2558	data => WF_AUTOCANCEL,
2559	cb => sub {
2560	reload;	3887	reload_perl;
2561	undef $RELOAD_WATCHER;
2562	},
2563	);	3888	};
2564	}	3889	}
2565	};	3890	};
2566		3891
2567	unshift @INC, $LIBDIR;	3892	unshift @INC, $LIBDIR;
2568		3893
2569	my $bug_warning = 0;	3894	my $bug_warning = 0;
2570		3895
2571	$TICK_WATCHER = Event->timer (	3896	our @WAIT_FOR_TICK;
2572	reentrant => 0,	3897	our @WAIT_FOR_TICK_BEGIN;
2573	parked => 1,	3898
2574	prio => 0,	3899	sub wait_for_tick {
2575	at => $NEXT_TICK || $TICK,	3900	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2576	data => WF_AUTOCANCEL,	3901
2577	cb => sub {	3902	my $signal = new Coro::Signal;
		3903	push @WAIT_FOR_TICK, $signal;
		3904	$signal->wait;
		3905	}
		3906
		3907	sub wait_for_tick_begin {
		3908	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3909
		3910	my $signal = new Coro::Signal;
		3911	push @WAIT_FOR_TICK_BEGIN, $signal;
		3912	$signal->wait;
		3913	}
		3914
		3915	sub tick {
2578	if ($Coro::current != $Coro::main) {	3916	if ($Coro::current != $Coro::main) {
2579	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3917	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2580	unless ++$bug_warning > 10;	3918	unless ++$bug_warning > 10;
2581	return;	3919	return;
2582	}	3920	}
2583		3921
2584	$NOW = Event::time;
2585
2586	cf::server_tick; # one server iteration	3922	cf::server_tick; # one server iteration
2587	$RUNTIME += $TICK;
2588	$NEXT_TICK += $TICK;
2589		3923
		3924	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
		3925
2590	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3926	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2591	$NEXT_RUNTIME_WRITE = $NOW + 10;	3927	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2592	Coro::async_pool {	3928	Coro::async_pool {
		3929	$Coro::current->{desc} = "runtime saver";
2593	write_runtime	3930	write_runtime_sync
2594	or warn "ERROR: unable to write runtime file: $!";	3931	or warn "ERROR: unable to write runtime file: $!";
2595	};
2596	}	3932	};
2597
2598	$WAIT_FOR_TICK->broadcast;
2599	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2600
2601	# my $AFTER = Event::time;
2602	# warn $AFTER - $NOW;#d#
2603
2604	# if we are delayed by four ticks or more, skip them all
2605	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2606
2607	$TICK_WATCHER->at ($NEXT_TICK);
2608	$TICK_WATCHER->start;
2609	},	3933	}
2610	);	3934
		3935	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3936	$sig->send;
		3937	}
		3938	while (my $sig = shift @WAIT_FOR_TICK) {
		3939	$sig->send;
		3940	}
		3941
		3942	$LOAD = ($NOW - $TICK_START) / $TICK;
		3943	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3944
		3945	if (0) {
		3946	if ($NEXT_TICK) {
		3947	my $jitter = $TICK_START - $NEXT_TICK;
		3948	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3949	warn "jitter $JITTER\n";#d#
		3950	}
		3951	}
		3952	}
2611		3953
2612	{	3954	{
2613	BDB::max_poll_time $TICK * 0.1;	3955	# configure BDB
2614	$BDB_POLL_WATCHER = Event->io (	3956
2615	reentrant => 0,
2616	fd => BDB::poll_fileno,
2617	poll => 'r',
2618	prio => 0,
2619	data => WF_AUTOCANCEL,
2620	cb => \&BDB::poll_cb,
2621	);
2622	BDB::min_parallel 8;	3957	BDB::min_parallel 16;
2623		3958	BDB::max_poll_reqs $TICK * 0.1;
2624	BDB::set_sync_prepare {	3959	$AnyEvent::BDB::WATCHER->priority (1);
2625	my $status;
2626	my $current = $Coro::current;
2627	(
2628	sub {
2629	$status = $!;
2630	$current->ready; undef $current;
2631	},
2632	sub {
2633	Coro::schedule while defined $current;
2634	$! = $status;
2635	},
2636	)
2637	};
2638		3960
2639	unless ($DB_ENV) {	3961	unless ($DB_ENV) {
2640	$DB_ENV = BDB::db_env_create;	3962	$DB_ENV = BDB::db_env_create;
		3963	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3964	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3965	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3966	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3967	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2641		3968
2642	cf::sync_job {	3969	cf::sync_job {
2643	eval {	3970	eval {
2644	BDB::db_env_open	3971	BDB::db_env_open
2645	$DB_ENV,	3972	$DB_ENV,
2646	$BDB_ENV_DIR,	3973	$BDBDIR,
2647	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3974	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2648	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3975	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2649	0666;	3976	0666;
2650		3977
2651	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3978	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2652
2653	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2654	$DB_ENV->set_lk_detect;
2655	};	3979	};
2656		3980
2657	cf::cleanup "db_env_open(db): $@" if $@;	3981	cf::cleanup "db_env_open(db): $@" if $@;
2658	};	3982	};
2659	}	3983	}
		3984
		3985	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3986	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3987	};
		3988	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3989	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3990	};
		3991	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3992	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3993	};
2660	}	3994	}
2661		3995
2662	{	3996	{
		3997	# configure IO::AIO
		3998
2663	IO::AIO::min_parallel 8;	3999	IO::AIO::min_parallel 8;
2664
2665	undef $Coro::AIO::WATCHER;
2666	IO::AIO::max_poll_time $TICK * 0.1;	4000	IO::AIO::max_poll_time $TICK * 0.1;
2667	$AIO_POLL_WATCHER = Event->io (	4001	undef $AnyEvent::AIO::WATCHER;
2668	reentrant => 0,
2669	data => WF_AUTOCANCEL,
2670	fd => IO::AIO::poll_fileno,
2671	poll => 'r',
2672	prio => 6,
2673	cb => \&IO::AIO::poll_cb,
2674	);
2675	}	4002	}
		4003
		4004	my $_log_backtrace;
		4005
		4006	sub _log_backtrace {
		4007	my ($msg, @addr) = @_;
		4008
		4009	$msg =~ s/\n//;
		4010
		4011	# limit the # of concurrent backtraces
		4012	if ($_log_backtrace < 2) {
		4013	++$_log_backtrace;
		4014	my $perl_bt = Carp::longmess $msg;
		4015	async {
		4016	$Coro::current->{desc} = "abt $msg";
		4017
		4018	my @bt = fork_call {
		4019	@addr = map { sprintf "%x", $_ } @addr;
		4020	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4021	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4022	or die "addr2line: $!";
		4023
		4024	my @funcs;
		4025	my @res = <$fh>;
		4026	chomp for @res;
		4027	while (@res) {
		4028	my ($func, $line) = splice @res, 0, 2, ();
		4029	push @funcs, "[$func] $line";
		4030	}
		4031
		4032	@funcs
		4033	};
		4034
		4035	LOG llevInfo, "[ABT] $perl_bt\n";
		4036	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4037	LOG llevInfo, "[ABT] $_\n" for @bt;
		4038	--$_log_backtrace;
		4039	};
		4040	} else {
		4041	LOG llevInfo, "[ABT] $msg\n";
		4042	LOG llevInfo, "[ABT] [suppressed]\n";
		4043	}
		4044	}
		4045
		4046	# load additional modules
		4047	require "cf/$_.pm" for @EXTRA_MODULES;
		4048	cf::_connect_to_perl_2;
2676		4049
2677	END { cf::emergency_save }	4050	END { cf::emergency_save }
2678		4051
2679	1	4052	1
2680		4053

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