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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.252 by root, Wed Apr 18 15:28:18 2007 UTC vs.
Revision 1.499 by root, Sun Jan 10 17:43:46 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 Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
14		38
		39	use Guard ();
15	use Coro 3.61 ();	40	use Coro ();
16	use Coro::State;	41	use Coro::State;
17	use Coro::Handle;	42	use Coro::Handle;
		43	use Coro::EV;
18	use Coro::Event;	44	use Coro::AnyEvent;
19	use Coro::Timer;	45	use Coro::Timer;
20	use Coro::Signal;	46	use Coro::Signal;
21	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
22	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
23	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
24		54
		55	use JSON::XS 2.01 ();
25	use BDB ();	56	use BDB ();
26	use Data::Dumper;	57	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	58	use Fcntl;
29	use YAML::Syck ();	59	use YAML::XS ();
30	use IO::AIO 2.32 ();	60	use IO::AIO ();
31	use Time::HiRes;	61	use Time::HiRes;
32	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
33		66
34	# configure various modules to our taste	67	# configure various modules to our taste
35	#	68	#
36	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
37	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";
38	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
39		77
40	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
41		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		80
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
59	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
		96
		97	our $CONFDIR = confdir;
		98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
60		112
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
62	our $TICK_WATCHER;
63	our $AIO_POLL_WATCHER;
64	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
65	our $NEXT_TICK;	115	our $NEXT_TICK;
66	our $NOW;
67	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
68		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
69	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
70	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
71		124
72	our %CFG;	125	our %CFG;
73		126
74	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
75	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
76		130
77	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
78	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
80	our $RANDOM_MAPS = cf::localdir . "/random";
81	our $BDB_ENV_DIR = cf::localdir . "/db";
82		134
83	# 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 ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		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 $REALLY_UNLOOP; # never set to true, please :)
		147
86	binmode STDOUT;	148	binmode STDOUT;
87	binmode STDERR;	149	binmode STDERR;
88		150
89	# read virtual server time, if available	151	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
91	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
92	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
93	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
94	}	156	}
95		157
96	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
97	mkdir cf::localdir . "/" . cf::playerdir;	159
98	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
99	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
100	mkdir $RANDOM_MAPS;
101	mkdir $BDB_ENV_DIR;
102		162
103	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
104		164
105	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::"} };
106		177
107	#############################################################################	178	#############################################################################
108		179
109	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
110		181
…		…
117	=item $cf::RUNTIME	188	=item $cf::RUNTIME
118		189
119	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
120	every server tick.	191	every server tick.
121		192
122	=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
123		196
124	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
125	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.
126		201
127	=item $cf::NOW	202	=item $cf::NOW
128		203
129	The time of the last (current) server tick.	204	The time of the last (current) server tick.
130		205
131	=item $cf::TICK	206	=item $cf::TICK
132		207
133	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
134		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
135	=item %cf::CFG	220	=item %cf::CFG
136		221
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
138	from wherever your confdir points to.	223	from wherever your confdir points to.
139		224
140	=item cf::wait_for_tick, cf::wait_for_tick_begin	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
141		226
142	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
143	returns directly I<after> the tick processing (and consequently, can only wake one process	228	returns directly I<after> the tick processing (and consequently, can only wake one process
144	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
145		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.
		242
146	=back	243	=back
147		244
148	=cut	245	=cut
149		246
150	BEGIN {	247	$Coro::State::WARNHOOK = sub {
151	*CORE::GLOBAL::warn = sub {
152	my $msg = join "", @_;	248	my $msg = join "", @_;
153		249
154	$msg .= "\n"	250	$msg .= "\n"
155	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
156		252
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		254
159	utf8::encode $msg;
160	LOG llevError, $msg;	255	LOG llevError, $msg;
161	};	256	};
162	}	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	};
163		271
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@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';
169	@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)
170		279
171	# 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
172	# within the Safe compartment.	281	# within the Safe compartment.
173	for my $pkg (qw(	282	for my $pkg (qw(
174	cf::global cf::attachable	283	cf::global cf::attachable
175	cf::object cf::object::player	284	cf::object cf::object::player
176	cf::client cf::player	285	cf::client cf::player
177	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
178	cf::map cf::party cf::region	288	cf::party cf::region
179	)) {	289	)) {
180	no strict 'refs';
181	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
182	}	291	}
183		292
184	$Event::DIED = sub {	293	$EV::DIED = sub {
185	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
186	};	295	};
		296
		297	#############################################################################
187		298
188	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
189		300
190	=over 4	301	=over 4
191		302
…		…
210	$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;
211	$d	322	$d
212	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
213	}	324	}
214		325
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
218		327
219	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
220		329
221	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
222		331
223	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
224		333
		334	=cut
		335
		336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		337
		338	sub encode_json($) { $json_coder->encode ($_[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;
		353	}
		354
225	=item cf::lock_wait $string	355	=item cf::lock_wait $string
226		356
227	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
228		358
229	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
230		360
231	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
232	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,
233	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
234	returned.	364	returned.
235		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
236	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
237	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
238		371
239	=cut	372	=item $locked = cf::lock_active $string
240		373
241	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
242		379
243	sub lock_wait($) {	380	sub lock_wait($) {
244	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
245
246	# wait for lock, if any
247	while ($LOCK{$key}) {
248	push @{ $LOCK{$key} }, $Coro::current;
249	Coro::schedule;
250	}
251	}	382	}
252		383
253	sub lock_acquire($) {	384	sub lock_acquire($) {
254	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
255		387
256	# wait, to be sure we are not locked	388	sub lock_active($) {
257	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
258
259	$LOCK{$key} = [];
260
261	Coro::guard {
262	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };
264	}
265	}	390	}
266		391
267	sub freeze_mainloop {	392	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
269		394
270	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
271	$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($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
272	};	456	}
273	$TICK_WATCHER->stop;	457	};
274	$guard	458
		459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
275	}	471	}
276		472
277	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
278		474
279	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
284		480
285	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
286		482
287	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
288		484
289	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
292		489
293	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
296	fast or be very important.	493	fast or be very important.
…		…
299		496
300	sub sync_job(&) {	497	sub sync_job(&) {
301	my ($job) = @_;	498	my ($job) = @_;
302		499
303	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
304	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
306		505
307	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
308	# (but this is cancel-safe)	507
309	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
310		509
311	my $busy = 1;	510	my $busy = 1;
312	my @res;	511	my @res;
313		512
314	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
315	@res = eval { $job->() };	515	@res = eval { $job->() };
316	warn $@ if $@;	516	warn $@ if $@;
317	undef $busy;	517	undef $busy;
318	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
319		519
320	while ($busy) {	520	while ($busy) {
321	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
322	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
323		531
324	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
325	} else {	533	} else {
326	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
327		535
…		…
347	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
348		556
349	$coro	557	$coro
350	}	558	}
351		559
352	sub write_runtime {	560	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		561
355	my $runtime = cf::localdir . "/runtime";	562	Executes the given code block with the given arguments in a seperate
		563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
356		566
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	567	=cut
358	or return;
359		568
360	my $value = $cf::RUNTIME + 90 + 10;	569	sub fork_call(&@) {
361	# 10 is the runtime save interval, for a monotonic clock	570	my ($cb, @args) = @_;
362	# 60 allows for the watchdog to kill the server.
363		571
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	572	# we seemingly have to make a local copy of the whole thing,
365	and return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
366		575
367	# always fsync - this file is important	576	my @res = Coro::Util::fork_eval {
368	aio_fsync $fh	577	reset_signals;
369	and return;	578	&$cb
		579	}, @args;
370		580
371	close $fh	581	wantarray ? @res : $res[-1]
372	or return;	582	}
373		583
374	aio_rename "$runtime~", $runtime	584	=item $coin = coin_from_name $name
375	and return;
376		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
377	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
378	}	736	}
379		737
380	=item cf::datalog type => key => value, ...	738	=item cf::datalog type => key => value, ...
381		739
382	Log a datalog packet of the given type with the given key-value pairs.	740	Log a datalog packet of the given type with the given key-value pairs.
…		…
394		752
395	#############################################################################	753	#############################################################################
396		754
397	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
398		756
399	Many objects in crossfire are so-called attachable objects. That means you can	757	Many objects in deliantra are so-called attachable objects. That means you can
400	attach callbacks/event handlers (a collection of which is called an "attachment")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
401	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
402		760
403	In the following description, CLASS can be any of C<global>, C<object>	761	In the following description, CLASS can be any of C<global>, C<object>
404	C<player>, C<client> or C<map> (i.e. the attachable objects in	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
405	crossfire+).	763	Deliantra).
406		764
407	=over 4	765	=over 4
408		766
409	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
410		768
…		…
454	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
455		813
456	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
457	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
458		816
459	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
460	that are attached at load/instantiate time, thus the need for a name.	818	that are attached at load/instantiate time, thus the need for a name.
461		819
462	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
463		821
464	=over 4	822	=over 4
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
574		932
575	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		937
580	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	939	my $pkg = shift @arg;
582		940
583	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
613	}	971	}
614		972
615	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
616	} else {	974	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	976	}
619		977
620	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
621	}	979	}
622		980
…		…
624	if (ref $_[0]) {	982	if (ref $_[0]) {
625	_object_attach @_;	983	_object_attach @_;
626	} else {	984	} else {
627	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
628	}	986	}
		987	_recalc_want;
629	};	988	};
630		989
631	# all those should be optimised	990	# all those should be optimised
632	sub cf::attachable::detach {	991	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
637	reattach ($obj);	996	reattach ($obj);
638	} else {	997	} else {
639	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
640	}	999	}
		1000	_recalc_want;
641	};	1001	};
642		1002
643	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
645		1005
…		…
660	";	1020	";
661	die if $@;	1021	die if $@;
662	}	1022	}
663		1023
664	our $override;	1024	our $override;
665	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
666		1026
667	sub override {	1027	sub override {
668	$override = 1;	1028	$override = 1;
669	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
670	}	1030	}
671		1031
672	sub do_invoke {	1032	sub do_invoke {
673	my $event = shift;	1033	my $event = shift;
674	my $callbacks = shift;	1034	my $callbacks = shift;
675		1035
676	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
677		1037
678	local $override;	1038	local $override;
679		1039
680	for (@$callbacks) {	1040	for (@$callbacks) {
681	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
690	}	1050	}
691		1051
692	0	1052	0
693	}	1053	}
694		1054
695	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
696		1056
697	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
698		1058
699	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
700		1060
701	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
702	removed in future versions), and there is no public API to access override	1062	removed in future versions), and there is no public API to access override
703	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		1064
705	=back	1065	=back
706		1066
707	=cut	1067	=cut
708		1068
709	#############################################################################	1069	#############################################################################
710	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
711		1113
712	sub reattach {	1114	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	1116	my ($obj) = @_;
715		1117
		1118	# no longer needed after getting rid of delete_package?
716	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		1120
718	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
719		1122
720	@$registry = ();	1123	@$registry = ();
721		1124
…		…
736	cf::attachable->attach (	1139	cf::attachable->attach (
737	prio => -1000000,	1140	prio => -1000000,
738	on_instantiate => sub {	1141	on_instantiate => sub {
739	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
740		1143
741	$data = from_json $data;	1144	$data = decode_json $data;
742		1145
743	for (@$data) {	1146	for (@$data) {
744	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
745		1148
746	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
762	sub object_freezer_save {	1165	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
764		1167
765	sync_job {	1168	sync_job {
766	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
769		1173
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1177	if ($cf::USE_FSYNC) {
		1178	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;
		1179	aio_fsync $fh;
		1180	}
774	close $fh;	1181	aio_close $fh;
775		1182
776	if (@$objs) {	1183	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh if $cf::USE_FSYNC;	1188	if ($cf::USE_FSYNC) {
		1189	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;
		1190	aio_fsync $fh;
		1191	}
782	close $fh;	1192	aio_close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
784	}	1194	}
785	} else {	1195	} else {
786	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
787	}	1197	}
788		1198
789	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
790	} else {	1203	} else {
791	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
792	}	1205	}
793	} else {	1206	} else {
794	aio_unlink $filename;	1207	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
796	}	1209	}
797	}	1210	};
798	}	1211	}
799		1212
800	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
802		1215
…		…
814	or return;	1227	or return;
815		1228
816	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
818	or return;	1231	or return;
		1232
819	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
820	}	1235	}
821		1236
		1237	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
824	return ($data, $av);	1241	($data, $av)
825	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
826		1249
827	#############################################################################	1250	#############################################################################
828	# command handling &c	1251	# command handling &c
829		1252
830	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1267	}
845		1268
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1270
848	Register a callbackf ro execution when the client sends an extcmd packet.	1271	Register a callback for execution when the client sends an (synchronous)
		1272	extcmd packet. Ext commands will be processed in the order they are
		1273	received by the server, like other user commands. The first argument is
		1274	the logged-in player. Ext commands can only be processed after a player
		1275	has logged in successfully.
849		1276
850	If the callback returns something, it is sent back as if reply was being	1277	If the callback returns something, it is sent back as if reply was being
851	called.	1278	called.
852		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
853	=cut	1291	=cut
854		1292
855	sub register_extcmd {	1293	sub register_extcmd {
856	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
857		1295
858	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
859	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
860		1306
861	cf::player->attach (	1307	cf::player->attach (
862	on_command => sub {	1308	on_command => sub {
863	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
864		1310
…		…
872	cf::override;	1318	cf::override;
873	},	1319	},
874	on_extcmd => sub {	1320	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
876		1322
877	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1324
879	if (ref $msg) {	1325	if (ref $msg) {
		1326	my ($type, $reply, @payload) =
		1327	"ARRAY" eq ref $msg
		1328	? @$msg
		1329	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1330
		1331	my @reply;
		1332
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
882	$pl->ext_reply ($msg->{msgid}, %reply);
883	}
884	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
885	} else {	1340	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1342	}
888		1343
889	cf::override;	1344	cf::override;
890	},	1345	},
891	);	1346	);
892		1347
		1348	# "readahead" all extensions
893	sub load_extension {	1349	sub cache_extensions {
894	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
895		1351
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
897	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
898	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
899	$pkg =~ s/[^[:word:]]/_/g;
900	$pkg = "ext::$pkg";
901
902	warn "... loading '$path' into '$pkg'\n";
903
904	open my $fh, "<:utf8", $path
905	or die "$path: $!";
906
907	my $source =
908	"package $pkg; use strict; use utf8;\n"
909	. "#line 1 \"$path\"\n{\n"
910	. (do { local $/; <$fh> })
911	. "\n};\n1";
912
913	unless (eval $source) {
914	my $msg = $@ ? "$path: $@\n"
915	: "extension disabled.\n";
916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
917	warn $@;
918	warn "mandatory extension failed to load, exiting.\n";
919	exit 1;
920	}	1355	}
921	die $@;
922	}	1356	};
923		1357
924	push @EXTS, $pkg;	1358	$grp
925	}	1359	}
926		1360
927	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
928	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1366	next unless -r $path;
930	eval {	1367
931	load_extension $ext;	1368	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1369	my $base = $1;
		1370	my $pkg = $1;
		1371	$pkg =~ s/[^[:word:]]/_/g;
		1372	$pkg = "ext::$pkg";
		1373
		1374	open my $fh, "<:utf8", $path
		1375	or die "$path: $!";
		1376
		1377	my $source = do { local $/; <$fh> };
		1378
		1379	my %ext = (
		1380	path => $path,
		1381	base => $base,
		1382	pkg => $pkg,
		1383	);
		1384
		1385	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1386	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1387
		1388	$ext{source} =
		1389	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1390	. "#line 1 \"$path\"\n{\n"
		1391	. $source
		1392	. "\n};\n1";
		1393
		1394	$todo{$base} = \%ext;
		1395	}
		1396
		1397	my %done;
		1398	while (%todo) {
		1399	my $progress;
		1400
		1401	while (my ($k, $v) = each %todo) {
		1402	for (split /,\s*/, $v->{meta}{depends}) {
		1403	goto skip
		1404	unless exists $done{$_};
		1405	}
		1406
		1407	warn "... loading '$k' into '$v->{pkg}'\n";
		1408
		1409	unless (eval $v->{source}) {
		1410	my $msg = $@ ? "$v->{path}: $@\n"
		1411	: "$v->{base}: extension inactive.\n";
		1412
		1413	if (exists $v->{meta}{mandatory}) {
		1414	warn $msg;
		1415	cf::cleanup "mandatory extension failed to load, exiting.";
		1416	}
		1417
		1418	warn $msg;
		1419	}
		1420
		1421	$done{$k} = delete $todo{$k};
		1422	push @EXTS, $v->{pkg};
		1423	$progress = 1;
932	1	1424	}
933	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
934	}	1430	};
935	}	1431	}
936		1432
937	#############################################################################	1433	#############################################################################
938		1434
		1435	=back
		1436
939	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
940		1438
941	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
942		1440
943	=cut	1441	=cut
944		1442
945	package cf::player;	1443	package cf::player;
946		1444
…		…
948		1446
949	=head3 cf::player	1447	=head3 cf::player
950		1448
951	=over 4	1449	=over 4
952		1450
		1451	=item cf::player::num_playing
		1452
		1453	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1454
		1455	=cut
		1456
		1457	sub num_playing {
		1458	scalar grep
		1459	$_->ob->map
		1460	&& !$_->hidden
		1461	&& !$_->ob->flag (cf::FLAG_WIZ),
		1462	cf::player::list
		1463	}
		1464
953	=item cf::player::find $login	1465	=item cf::player::find $login
954		1466
955	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
956		1468
957	=cut	1469	=cut
958		1470
959	sub playerdir($) {	1471	sub playerdir($) {
960	cf::localdir	1472	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1473	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1474	}
966		1475
967	sub path($) {	1476	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1477	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
978		1487
979	sub exists($) {	1488	sub exists($) {
980	my ($login) = @_;	1489	my ($login) = @_;
981		1490
982	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
983	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
984	}	1493	}
985		1494
986	sub find($) {	1495	sub find($) {
987	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
988	my $login = $_[0];	1497	my $login = $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1507	aio_unlink +(playerdir $login) . "/$login.pl";
999		1508
1000	my $pl = load_pl path $login	1509	my $f = new_from_file cf::object::thawer path $login
1001	or return;	1510	or return;
		1511
		1512	my $pl = cf::player::load_pl $f
		1513	or return;
		1514
		1515	local $cf::PLAYER_LOADING{$login} = $pl;
		1516	$f->resolve_delayed_derefs;
1002	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
1003	}	1518	}
1004	}	1519	}
1005	}	1520	}
1006		1521
…		…
1015	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1016		1531
1017	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1019		1534
		1535	cf::get_slot 0.01;
		1536
1020	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1021	Coro::cede;	1538	cf::cede_to_tick;
1022	}	1539	}
1023		1540
1024	sub new($) {	1541	sub new($) {
1025	my ($login) = @_;	1542	my ($login) = @_;
1026		1543
…		…
1032	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1033		1550
1034	$self	1551	$self
1035	}	1552	}
1036		1553
		1554	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1555
		1556	=cut
		1557
		1558	sub send_msg {
		1559	my $ns = shift->ns
		1560	or return;
		1561	$ns->send_msg (@_);
		1562	}
		1563
1037	=item $pl->quit_character	1564	=item $pl->quit_character
1038		1565
1039	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1040	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1041		1568
…		…
1045	my ($pl) = @_;	1572	my ($pl) = @_;
1046		1573
1047	my $name = $pl->ob->name;	1574	my $name = $pl->ob->name;
1048		1575
1049	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1050	$pl->password ("*"); # this should lock out the player until we nuked the dir	1577	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1051		1578
1052	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1053	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1055	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1056		1585
1057	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1058	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1088	while and may block, so not sync_job-capable, ever.	1617	while and may block, so not sync_job-capable, ever.
1089		1618
1090	=cut	1619	=cut
1091		1620
1092	sub list_logins {	1621	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1622	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1623	or return [];
1095		1624
1096	my @logins;	1625	my @logins;
1097		1626
1098	for my $login (@$dirs) {	1627	for my $login (@$dirs) {
		1628	my $path = path $login;
		1629
		1630	# a .pst is a dead give-away for a valid player
		1631	# if no pst file found, open and chekc for blocked users
		1632	if (aio_stat "$path.pst") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1102		1637
1103	utf8::decode $login;	1638	utf8::decode $login;
1104	push @logins, $login;	1639	push @logins, $login;
1105	}	1640	}
1106		1641
…		…
1133	}	1668	}
1134		1669
1135	\@paths	1670	\@paths
1136	}	1671	}
1137		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1138	=item $player->ext_reply ($msgid, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1139		1678
1140	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1141		1680
1142	=cut	1681	=cut
1143		1682
1144	sub ext_reply($$%) {	1683	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1146		1685
1147	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1687	}
1151		1688
1152	=item $player->ext_event ($type, %msg)	1689	=item $player->ext_msg ($type, @msg)
1153		1690
1154	Sends an ext event to the client.	1691	Sends an ext event to the client.
1155		1692
1156	=cut	1693	=cut
1157		1694
1158	sub ext_event($$%) {	1695	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1696	my ($self, $type, @msg) = @_;
1160		1697
1161	$self->ns->ext_event ($type, %msg);	1698	$self->ns->ext_msg ($type, @msg);
1162	}	1699	}
1163		1700
1164	=head3 cf::region	1701	=head3 cf::region
1165		1702
1166	=over 4	1703	=over 4
…		…
1169		1706
1170	package cf::region;	1707	package cf::region;
1171		1708
1172	=item cf::region::find_by_path $path	1709	=item cf::region::find_by_path $path
1173		1710
1174	Tries to decuce the probable region for a map knowing only its path.	1711	Tries to decuce the likely region for a map knowing only its path.
1175		1712
1176	=cut	1713	=cut
1177		1714
1178	sub find_by_path($) {	1715	sub find_by_path($) {
1179	my ($path) = @_;	1716	my ($path) = @_;
1180		1717
1181	my ($match, $specificity);	1718	my ($match, $specificity);
1182		1719
1183	for my $region (list) {	1720	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1721	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1722	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1723	if $region->specificity > $specificity;
1187	}	1724	}
1188	}	1725	}
1189		1726
…		…
1210	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1212		1749
1213	sub generate_random_map {	1750	sub generate_random_map {
1214	my ($self, $rmp) = @_;	1751	my ($self, $rmp) = @_;
		1752
		1753	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1754
1215	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1216	$self->_create_random_map (	1756	$self->_create_random_map (
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1253	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1254		1794
1255	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1256	local $self->{path};	1796	local $self->{path};
1257	local $self->{load_path};	1797	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1798
1261	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1262	}	1800	}
1263		1801
1264	sub normalise {	1802	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1312	return $self;	1850	return $self;
1313	}	1851	}
1314	}	1852	}
1315		1853
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1855	()
1318	}	1856	}
1319		1857
1320	sub init {	1858	sub init {
1321	my ($self) = @_;	1859	my ($self) = @_;
…		…
1336		1874
1337	# the original (read-only) location	1875	# the original (read-only) location
1338	sub load_path {	1876	sub load_path {
1339	my ($self) = @_;	1877	my ($self) = @_;
1340		1878
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1879	"$MAPDIR/$self->{path}.map"
1342	}	1880	}
1343		1881
1344	# the temporary/swap location	1882	# the temporary/swap location
1345	sub save_path {	1883	sub save_path {
1346	my ($self) = @_;	1884	my ($self) = @_;
1347		1885
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1887	"$TMPDIR/$path.map"
1350	}	1888	}
1351		1889
1352	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1353	sub uniq_path {	1891	sub uniq_path {
1354	my ($self) = @_;	1892	my ($self) = @_;
1355		1893
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1895	"$UNIQUEDIR/$path"
1358	}	1896	}
1359		1897
1360	# and all this just because we cannot iterate over	1898	sub decay_objects {
1361	# all maps in C++...
1362	sub change_all_map_light {
1363	my ($change) = @_;	1899	my ($self) = @_;
1364		1900
1365	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1366	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1367	}	1904	}
1368		1905
1369	sub unlink_save {	1906	sub unlink_save {
1370	my ($self) = @_;	1907	my ($self) = @_;
1371		1908
…		…
1376		1913
1377	sub load_header_from($) {	1914	sub load_header_from($) {
1378	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1379		1916
1380	utf8::encode $path;	1917	utf8::encode $path;
1381	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1382	# or return;
1383
1384	$self->_load_header ($path)
1385	or return;	1919	or return;
		1920
		1921	$self->_load_header ($f)
		1922	or return;
		1923
		1924	local $MAP_LOADING{$self->{path}} = $self;
		1925	$f->resolve_delayed_derefs;
1386		1926
1387	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1388		1928
1389	1	1929	1
1390	}	1930	}
…		…
1429	$self->load_header_orig	1969	$self->load_header_orig
1430	or return;	1970	or return;
1431	$self->prepare_orig;	1971	$self->prepare_orig;
1432	}	1972	}
1433		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
1434	$self->default_region (cf::region::find_by_path $self->{path})	1977	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1978	unless $self->default_region;
1436		1979
1437	1	1980	1
1438	}	1981	}
…		…
1441	sub find {	1984	sub find {
1442	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1443		1986
1444	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1445		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1446	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1447		1991
1448	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1449	my $guard = cf::lock_acquire "map_find:$path";
1450	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1451	or return;	1994	or return;
1452		1995
1453	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1454		1997
1455	$map->load_header	1998	$map->load_header
1456	or return;	1999	or return;
1457		2000
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1461	$map->reset;	2006	$map->reset;
1462	undef $guard;
1463	return find $path;	2007	return find $path;
1464	}	2008	}
1465		2009
1466	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1467	}	2011	}
…		…
1474	my ($self) = @_;	2018	my ($self) = @_;
1475		2019
1476	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1477		2021
1478	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1479	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1480		2026
		2027	return unless $self->valid;
1481	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1482		2029
1483	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1484		2031
1485	$self->alloc;	2032	$self->alloc;
1486		2033
1487	$self->pre_load;	2034	$self->pre_load;
1488	Coro::cede;	2035	cf::cede_to_tick;
1489		2036
1490	$self->_load_objects ($self->{load_path}, 1)	2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
		2039	$self->_load_objects ($f)
1491	or return;	2040	or return;
1492		2041
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1494	if delete $self->{load_original};	2043	if delete $self->{load_original};
1495		2044
1496	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;	2046	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1499	$self->clear_unique_items;	2049	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1501	}	2053	}
1502	}	2054	}
1503		2055
1504	Coro::cede;	2056	$f->resolve_delayed_derefs;
		2057
		2058	cf::cede_to_tick;
1505	# now do the right thing for maps	2059	# now do the right thing for maps
1506	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($self->{deny_activate}) {
1510	$self->decay_objects;
1511	$self->fix_auto_apply;
1512	$self->update_buttons;
1513	Coro::cede;
1514	$self->set_darkness_map;
1515	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	2062	unless $self->difficulty;
1517	Coro::cede;	2063	cf::cede_to_tick;
		2064
		2065	unless ($self->{deny_activate}) {
		2066	$self->decay_objects;
		2067	$self->fix_auto_apply;
		2068	$self->update_buttons;
		2069	cf::cede_to_tick;
1518	$self->activate;	2070	$self->activate;
1519	Coro::cede;	2071	}
		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
		2076	$self->in_memory (cf::MAP_ACTIVE);
1520	}	2077	}
1521		2078
1522	$self->post_load;	2079	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	2080	}
1527		2081
1528	sub customise_for {	2082	sub customise_for {
1529	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1530		2084
1531	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	2086	if $self->per_player;
1533		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1534	$self	2091	$self
1535	}	2092	}
1536		2093
1537	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1538	sub load_diag {	2095	sub load_neighbours {
1539	my ($map) = @_;	2096	my ($map) = @_;
1540		2097
1541	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1542		2099
1543	for (0 .. 3) {	2100	for (0 .. 3) {
1544	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1545	or next;	2102	or next;
1546	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1547	or next;	2104	or next;
1548	$neigh->load;	2105	$neigh->load;
1549		2106
		2107	push @neigh,
1550	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1551	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1552	}	2110	}
1553		2111
1554	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1555	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1556	or next;	2115	or next;
1557	$neigh->load;	2116	$neigh->load;
1558	}	2117	}
1559	}	2118	}
1560		2119
…		…
1565	}	2124	}
1566		2125
1567	sub do_load_sync {	2126	sub do_load_sync {
1568	my ($map) = @_;	2127	my ($map) = @_;
1569		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1570	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1571	}	2133	}
1572		2134
1573	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1574	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1575		2137
1576	sub find_async {	2138	sub find_async {
1577	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1578		2140
1579	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1580		2142
1581	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1582	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1583	}	2145	}
1584		2146
1585	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1586	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1587	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1589	my $map = find $path	2154	if (my $map = find $k) {
1590	or next;
1591	$map->load;	2155	$map->load if $v;
		2156	}
1592		2157
1593	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1594	}	2159	}
1595	}	2160	}
1596	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1597	};	2162	};
1598	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1601	}	2166	}
1602		2167
1603	sub save {	2168	sub save {
1604	my ($self) = @_;	2169	my ($self) = @_;
1605		2170
1606	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1607		2172
1608	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1609		2174
1610	return unless $self->dirty;	2175	return unless $self->dirty;
1611		2176
…		…
1617	return if $self->{deny_save};	2182	return if $self->{deny_save};
1618		2183
1619	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1620		2185
1621	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1622	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1623	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1624		2192
1625	if ($uniq) {	2193	if ($uniq) {
1626	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1627	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1628	} else {	2196	} else {
…		…
1634	my ($self) = @_;	2202	my ($self) = @_;
1635		2203
1636	# save first because save cedes	2204	# save first because save cedes
1637	$self->save;	2205	$self->save;
1638		2206
1639	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2208
1641	return if $self->players;	2209	return if $self->players;
1642	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1643	return if $self->{deny_save};	2211	return if $self->{deny_save};
1644		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1645	$self->clear;	2217	$self->clear;
1646	$self->in_memory (cf::MAP_SWAPPED);
1647	}	2218	}
1648		2219
1649	sub reset_at {	2220	sub reset_at {
1650	my ($self) = @_;	2221	my ($self) = @_;
1651		2222
1652	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1653	return 1e99 if $self->isa ("ext::map_per_player");#d#
1654	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1655		2225
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		2228
…		…
1669	my ($self) = @_;	2239	my ($self) = @_;
1670		2240
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2242
1673	return if $self->players;	2243	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2244
1676	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
1677		2246
1678	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->in_memory (cf::MAP_SWAPPED);
1679		2248
1680	# need to save uniques path	2249	# need to save uniques path
1681	unless ($self->{deny_save}) {	2250	unless ($self->{deny_save}) {
…		…
1685	if $uniq;	2254	if $uniq;
1686	}	2255	}
1687		2256
1688	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1689		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1690	$self->clear;	2261	$self->clear;
1691
1692	$_->clear_links_to ($self) for values %cf::MAP;
1693		2262
1694	$self->unlink_save;	2263	$self->unlink_save;
1695	$self->destroy;	2264	$self->destroy;
1696	}	2265	}
1697		2266
1698	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1699		2268
1700	sub nuke {	2269	sub nuke {
1701	my ($self) = @_;	2270	my ($self) = @_;
1702		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1703	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1704		2276
1705	$self->unlink_save;	2277	$self->unlink_save;
1706		2278
1707	bless $self, "cf::map";	2279	bless $self, "cf::map";
1708	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1709	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1710	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1711	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1712		2284
1713	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1714		2287
1715	$self->reset; # polite request, might not happen	2288	$self->reset; # polite request, might not happen
		2289	}
		2290
		2291	=item $maps = cf::map::tmp_maps
		2292
		2293	Returns an arrayref with all map paths of currently instantiated and saved
		2294	maps. May block.
		2295
		2296	=cut
		2297
		2298	sub tmp_maps() {
		2299	[
		2300	map {
		2301	utf8::decode $_;
		2302	/\.map$/
		2303	? normalise $_
		2304	: ()
		2305	} @{ aio_readdir $TMPDIR or [] }
		2306	]
		2307	}
		2308
		2309	=item $maps = cf::map::random_maps
		2310
		2311	Returns an arrayref with all map paths of currently instantiated and saved
		2312	random maps. May block.
		2313
		2314	=cut
		2315
		2316	sub random_maps() {
		2317	[
		2318	map {
		2319	utf8::decode $_;
		2320	/\.map$/
		2321	? normalise "?random/$_"
		2322	: ()
		2323	} @{ aio_readdir $RANDOMDIR or [] }
		2324	]
1716	}	2325	}
1717		2326
1718	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1719		2328
1720	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2330	instantiated unique items. May block.
1722		2331
1723	=cut	2332	=cut
1724		2333
1725	sub unique_maps() {	2334	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2335	[
1727	or return;	2336	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2337	utf8::decode $_;
1733	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1734	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1735		2340	? ()
1736	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2343	]
1738
1739	\@paths
1740	}	2344	}
1741		2345
1742	package cf;	2346	=item cf::map::static_maps
		2347
		2348	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2349	file in the shared directory excluding F</styles> and F</editor>). May
		2350	block.
		2351
		2352	=cut
		2353
		2354	sub static_maps() {
		2355	my @dirs = "";
		2356	my @maps;
		2357
		2358	while (@dirs) {
		2359	my $dir = shift @dirs;
		2360
		2361	next if $dir eq "/styles" || $dir eq "/editor";
		2362
		2363	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2364	or return;
		2365
		2366	for (@$files) {
		2367	s/\.map$// or next;
		2368	utf8::decode $_;
		2369	push @maps, "$dir/$_";
		2370	}
		2371
		2372	push @dirs, map "$dir/$_", @$dirs;
		2373	}
		2374
		2375	\@maps
		2376	}
1743		2377
1744	=back	2378	=back
1745		2379
1746	=head3 cf::object	2380	=head3 cf::object
1747		2381
…		…
1751		2385
1752	=over 4	2386	=over 4
1753		2387
1754	=item $ob->inv_recursive	2388	=item $ob->inv_recursive
1755		2389
1756	Returns the inventory of the object _and_ their inventories, recursively.	2390	Returns the inventory of the object I<and> their inventories, recursively,
		2391	but I<not> the object itself.
1757		2392
1758	=cut	2393	=cut
1759		2394
1760	sub inv_recursive_;	2395	sub inv_recursive_;
1761	sub inv_recursive_ {	2396	sub inv_recursive_ {
…		…
1764		2399
1765	sub inv_recursive {	2400	sub inv_recursive {
1766	inv_recursive_ inv $_[0]	2401	inv_recursive_ inv $_[0]
1767	}	2402	}
1768		2403
		2404	=item $ref = $ob->ref
		2405
		2406	Creates and returns a persistent reference to an object that can be stored as a string.
		2407
		2408	=item $ob = cf::object::deref ($refstring)
		2409
		2410	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2411	even if the object actually exists. May block.
		2412
		2413	=cut
		2414
		2415	sub deref {
		2416	my ($ref) = @_;
		2417
		2418	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2419	my ($uuid, $name) = ($1, $2);
		2420	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2421	or return;
		2422	$pl->ob->uuid eq $uuid
		2423	or return;
		2424
		2425	$pl->ob
		2426	} else {
		2427	warn "$ref: cannot resolve object reference\n";
		2428	undef
		2429	}
		2430	}
		2431
1769	package cf;	2432	package cf;
1770		2433
1771	=back	2434	=back
1772		2435
1773	=head3 cf::object::player	2436	=head3 cf::object::player
…		…
1779	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2442	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1780	can be C<undef>. Does the right thing when the player is currently in a	2443	can be C<undef>. Does the right thing when the player is currently in a
1781	dialogue with the given NPC character.	2444	dialogue with the given NPC character.
1782		2445
1783	=cut	2446	=cut
		2447
		2448	our $SAY_CHANNEL = {
		2449	id => "say",
		2450	title => "Map",
		2451	reply => "say ",
		2452	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2453	};
		2454
		2455	our $CHAT_CHANNEL = {
		2456	id => "chat",
		2457	title => "Chat",
		2458	reply => "chat ",
		2459	tooltip => "Player chat and shouts, global to the server.",
		2460	};
1784		2461
1785	# rough implementation of a future "reply" method that works	2462	# rough implementation of a future "reply" method that works
1786	# with dialog boxes.	2463	# with dialog boxes.
1787	#TODO: the first argument must go, split into a $npc->reply_to ( method	2464	#TODO: the first argument must go, split into a $npc->reply_to ( method
1788	sub cf::object::player::reply($$$;$) {	2465	sub cf::object::player::reply($$$;$) {
…		…
1790		2467
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2468	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2469
1793	if ($self->{record_replies}) {	2470	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2471	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2472
1795	} else {	2473	} else {
		2474	my $pl = $self->contr;
		2475
		2476	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2477	my $dialog = $pl->{npc_dialog};
		2478	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2479
		2480	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2481	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2482	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2483	}
1798	}	2484	}
		2485	}
		2486
		2487	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2488
		2489	=cut
		2490
		2491	sub cf::object::send_msg {
		2492	my $pl = shift->contr
		2493	or return;
		2494	$pl->send_msg (@_);
1799	}	2495	}
1800		2496
1801	=item $player_object->may ("access")	2497	=item $player_object->may ("access")
1802		2498
1803	Returns wether the given player is authorized to access resource "access"	2499	Returns wether the given player is authorized to access resource "access"
…		…
1816		2512
1817	=item $player_object->enter_link	2513	=item $player_object->enter_link
1818		2514
1819	Freezes the player and moves him/her to a special map (C<{link}>).	2515	Freezes the player and moves him/her to a special map (C<{link}>).
1820		2516
1821	The player should be reasonably safe there for short amounts of time. You	2517	The player should be reasonably safe there for short amounts of time (e.g.
1822	I<MUST> call C<leave_link> as soon as possible, though.	2518	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2519	though, as the palyer cannot control the character while it is on the link
		2520	map.
1823		2521
1824	Will never block.	2522	Will never block.
1825		2523
1826	=item $player_object->leave_link ($map, $x, $y)	2524	=item $player_object->leave_link ($map, $x, $y)
1827		2525
…		…
1850	$self->deactivate_recursive;	2548	$self->deactivate_recursive;
1851		2549
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2550	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2551
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2552	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2553	if $self->map && $self->map->{path} ne "{link}";
1856		2554
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2555	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2556	}
1859		2557
1860	sub cf::object::player::leave_link {	2558	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2559	my ($self, $map, $x, $y) = @_;
		2560
		2561	return unless $self->contr->active;
1862		2562
1863	my $link_pos = delete $self->{_link_pos};	2563	my $link_pos = delete $self->{_link_pos};
1864		2564
1865	unless ($map) {	2565	unless ($map) {
1866	# restore original map position	2566	# restore original map position
…		…
1877	($x, $y) = (-1, -1)	2577	($x, $y) = (-1, -1)
1878	unless (defined $x) && (defined $y);	2578	unless (defined $x) && (defined $y);
1879		2579
1880	# use -1 or undef as default coordinates, not 0, 0	2580	# use -1 or undef as default coordinates, not 0, 0
1881	($x, $y) = ($map->enter_x, $map->enter_y)	2581	($x, $y) = ($map->enter_x, $map->enter_y)
1882	if $x <=0 && $y <= 0;	2582	if $x <= 0 && $y <= 0;
1883		2583
1884	$map->load;	2584	$map->load;
1885	$map->load_diag;	2585	$map->load_neighbours;
1886		2586
1887	return unless $self->contr->active;	2587	return unless $self->contr->active;
1888	$self->activate_recursive;
1889		2588
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2589	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2590	$self->enter_map ($map, $x, $y);
1892	}
1893		2591
1894	cf::player->attach (	2592	# only activate afterwards, to support waiting in hooks
1895	on_logout => sub {	2593	$self->activate_recursive;
1896	my ($pl) = @_;	2594	}
1897		2595
1898	# abort map switching before logout	2596	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1899	if ($pl->ob->{_link_pos}) {
1900	cf::sync_job {
1901	$pl->ob->leave_link
1902	};
1903	}
1904	},
1905	on_login => sub {
1906	my ($pl) = @_;
1907		2597
1908	# try to abort aborted map switching on player login :)	2598	Moves the player to the given map-path and coordinates by first freezing
1909	# should happen only on crashes	2599	her, loading and preparing them map, calling the provided $check callback
1910	if ($pl->ob->{_link_pos}) {	2600	that has to return the map if sucecssful, and then unfreezes the player on
1911	$pl->ob->enter_link;	2601	the new (success) or old (failed) map position. In either case, $done will
1912	(async {	2602	be called at the end of this process.
1913	$pl->ob->reply (undef,
1914	"There was an internal problem at your last logout, "
1915	. "the server will try to bring you to your intended destination in a second.",
1916	cf::NDI_RED);
1917	# we need this sleep as the login has a concurrent enter_exit running
1918	# and this sleep increases chances of the player not ending up in scorn
1919	Coro::Timer::sleep 1;
1920	$pl->ob->leave_link;
1921	})->prio (2);
1922	}
1923	},
1924	);
1925		2603
1926	=item $player_object->goto ($path, $x, $y)	2604	Note that $check will be called with a potentially non-loaded map, so if
		2605	it needs a loaded map it has to call C<< ->load >>.
1927		2606
1928	=cut	2607	=cut
		2608
		2609	our $GOTOGEN;
1929		2610
1930	sub cf::object::player::goto {	2611	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2612	my ($self, $path, $x, $y, $check, $done) = @_;
		2613
		2614	# do generation counting so two concurrent goto's will be executed in-order
		2615	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2616
1933	$self->enter_link;	2617	$self->enter_link;
1934		2618
1935	(async {	2619	(async {
		2620	$Coro::current->{desc} = "player::goto $path $x $y";
		2621
		2622	# *tag paths override both path and x|y
		2623	if ($path =~ /^\*(.*)$/) {
		2624	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2625	my $ob = $obs[rand @obs];
		2626
		2627	# see if we actually can go there
		2628	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2629	$ob = $obs[rand @obs];
		2630	} else {
		2631	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2632	}
		2633	# else put us there anyways for now #d#
		2634
		2635	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2636	} else {
		2637	($path, $x, $y) = (undef, undef, undef);
		2638	}
		2639	}
		2640
1936	my $map = eval {	2641	my $map = eval {
1937	my $map = cf::map::find $path;	2642	my $map = defined $path ? cf::map::find $path : undef;
		2643
		2644	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2645	$map = $map->customise_for ($self);
		2646	$map = $check->($map) if $check && $map;
		2647	} else {
		2648	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2649	}
		2650
1939	$map	2651	$map
		2652	};
		2653
		2654	if ($@) {
		2655	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2656	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2657	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2658
		2659	if ($gen == $self->{_goto_generation}) {
		2660	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2661	$self->leave_link ($map, $x, $y);
		2662	}
		2663
		2664	$done->() if $done;
1944	})->prio (1);	2665	})->prio (1);
1945	}	2666	}
1946		2667
1947	=item $player_object->enter_exit ($exit_object)	2668	=item $player_object->enter_exit ($exit_object)
1948		2669
…		…
1968	}	2689	}
1969		2690
1970	sub prepare_random_map {	2691	sub prepare_random_map {
1971	my ($exit) = @_;	2692	my ($exit) = @_;
1972		2693
1973	my $guard = cf::lock_acquire "exit_prepare:$exit";
1974
1975	# all this does is basically replace the /! path by	2694	# all this does is basically replace the /! path by
1976	# a new random map path (?random/...) with a seed	2695	# a new random map path (?random/...) with a seed
1977	# that depends on the exit object	2696	# that depends on the exit object
1978		2697
1979	my $rmp = parse_random_map_params $exit->msg;	2698	my $rmp = parse_random_map_params $exit->msg;
…		…
1981	if ($exit->map) {	2700	if ($exit->map) {
1982	$rmp->{region} = $exit->region->name;	2701	$rmp->{region} = $exit->region->name;
1983	$rmp->{origin_map} = $exit->map->path;	2702	$rmp->{origin_map} = $exit->map->path;
1984	$rmp->{origin_x} = $exit->x;	2703	$rmp->{origin_x} = $exit->x;
1985	$rmp->{origin_y} = $exit->y;	2704	$rmp->{origin_y} = $exit->y;
		2705
		2706	$exit->map->touch;
1986	}	2707	}
1987		2708
1988	$rmp->{random_seed} ||= $exit->random_seed;	2709	$rmp->{random_seed} ||= $exit->random_seed;
1989		2710
1990	my $data = cf::to_json $rmp;	2711	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1991	my $md5 = Digest::MD5::md5_hex $data;	2712	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2713	my $meta = "$RANDOMDIR/$md5.meta";
1993		2714
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2715	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2716	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2717	undef $fh;
1997	aio_rename "$meta~", $meta;	2718	aio_rename "$meta~", $meta;
1998		2719
		2720	my $slaying = "?random/$md5";
		2721
		2722	if ($exit->valid) {
1999	$exit->slaying ("?random/$md5");	2723	$exit->slaying ("?random/$md5");
2000	$exit->msg (undef);	2724	$exit->msg (undef);
		2725	}
2001	}	2726	}
2002	}	2727	}
2003		2728
2004	sub cf::object::player::enter_exit {	2729	sub cf::object::player::enter_exit {
2005	my ($self, $exit) = @_;	2730	my ($self, $exit) = @_;
2006		2731
2007	return unless $self->type == cf::PLAYER;	2732	return unless $self->type == cf::PLAYER;
2008		2733
2009	if ($exit->slaying eq "/!") {
2010	#TODO: this should de-fi-ni-te-ly not be a sync-job
2011	# the problem is that $exit might not survive long enough
2012	# so it needs to be done right now, right here
2013	cf::sync_job { prepare_random_map $exit };
2014	}
2015
2016	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2017	my $hp = $exit->stats->hp;
2018	my $sp = $exit->stats->sp;
2019
2020	$self->enter_link;	2734	$self->enter_link;
2021		2735
2022	(async {	2736	(async {
2023	$self->deactivate_recursive; # just to be sure	2737	$Coro::current->{desc} = "enter_exit";
		2738
2024	unless (eval {	2739	unless (eval {
		2740	$self->deactivate_recursive; # just to be sure
		2741
		2742	# random map handling
		2743	{
		2744	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2745
		2746	prepare_random_map $exit
		2747	if $exit->slaying eq "/!";
		2748	}
		2749
		2750	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2751	my $x = $exit->stats->hp;
		2752	my $y = $exit->stats->sp;
		2753
2025	$self->goto ($slaying, $hp, $sp);	2754	$self->goto ($map, $x, $y);
2026		2755
		2756	# if exit is damned, update players death & WoR home-position
		2757	$self->contr->savebed ($map, $x, $y)
		2758	if $exit->flag (cf::FLAG_DAMNED);
		2759
2027	1;	2760	1
2028	}) {	2761	}) {
2029	$self->message ("Something went wrong deep within the crossfire server. "	2762	$self->message ("Something went wrong deep within the deliantra server. "
2030	. "I'll try to bring you back to the map you were before. "	2763	. "I'll try to bring you back to the map you were before. "
2031	. "Please report this to the dungeon master!",	2764	. "Please report this to the dungeon master!",
2032	cf::NDI_UNIQUE | cf::NDI_RED);	2765	cf::NDI_UNIQUE | cf::NDI_RED);
2033		2766
2034	warn "ERROR in enter_exit: $@";	2767	warn "ERROR in enter_exit: $@";
…		…
2053		2786
2054	utf8::encode $text;	2787	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2788	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2789	}
2057		2790
		2791	=item $client->send_big_packet ($pkt)
		2792
		2793	Like C<send_packet>, but tries to compress large packets, and fragments
		2794	them as required.
		2795
		2796	=cut
		2797
		2798	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2799
		2800	sub cf::client::send_big_packet {
		2801	my ($self, $pkt) = @_;
		2802
		2803	# try lzf for large packets
		2804	$pkt = "lzf " . Compress::LZF::compress $pkt
		2805	if 1024 <= length $pkt and $self->{can_lzf};
		2806
		2807	# split very large packets
		2808	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2809	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2810	$pkt = "frag";
		2811	}
		2812
		2813	$self->send_packet ($pkt);
		2814	}
		2815
		2816	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2817
		2818	Send a drawinfo or msg packet to the client, formatting the msg for the
		2819	client if neccessary. C<$type> should be a string identifying the type of
		2820	the message, with C<log> being the default. If C<$color> is negative, suppress
		2821	the message unless the client supports the msg packet.
		2822
		2823	=cut
		2824
		2825	# non-persistent channels (usually the info channel)
		2826	our %CHANNEL = (
		2827	"c/motd" => {
		2828	id => "infobox",
		2829	title => "MOTD",
		2830	reply => undef,
		2831	tooltip => "The message of the day",
		2832	},
		2833	"c/identify" => {
		2834	id => "infobox",
		2835	title => "Identify",
		2836	reply => undef,
		2837	tooltip => "Items recently identified",
		2838	},
		2839	"c/examine" => {
		2840	id => "infobox",
		2841	title => "Examine",
		2842	reply => undef,
		2843	tooltip => "Signs and other items you examined",
		2844	},
		2845	"c/shopinfo" => {
		2846	id => "infobox",
		2847	title => "Shop Info",
		2848	reply => undef,
		2849	tooltip => "What your bargaining skill tells you about the shop",
		2850	},
		2851	"c/book" => {
		2852	id => "infobox",
		2853	title => "Book",
		2854	reply => undef,
		2855	tooltip => "The contents of a note or book",
		2856	},
		2857	"c/lookat" => {
		2858	id => "infobox",
		2859	title => "Look",
		2860	reply => undef,
		2861	tooltip => "What you saw there",
		2862	},
		2863	"c/who" => {
		2864	id => "infobox",
		2865	title => "Players",
		2866	reply => undef,
		2867	tooltip => "Shows players who are currently online",
		2868	},
		2869	"c/body" => {
		2870	id => "infobox",
		2871	title => "Body Parts",
		2872	reply => undef,
		2873	tooltip => "Shows which body parts you posess and are available",
		2874	},
		2875	"c/statistics" => {
		2876	id => "infobox",
		2877	title => "Statistics",
		2878	reply => undef,
		2879	tooltip => "Shows your primary statistics",
		2880	},
		2881	"c/skills" => {
		2882	id => "infobox",
		2883	title => "Skills",
		2884	reply => undef,
		2885	tooltip => "Shows your experience per skill and item power",
		2886	},
		2887	"c/shopitems" => {
		2888	id => "infobox",
		2889	title => "Shop Items",
		2890	reply => undef,
		2891	tooltip => "Shows the items currently for sale in this shop",
		2892	},
		2893	"c/resistances" => {
		2894	id => "infobox",
		2895	title => "Resistances",
		2896	reply => undef,
		2897	tooltip => "Shows your resistances",
		2898	},
		2899	"c/pets" => {
		2900	id => "infobox",
		2901	title => "Pets",
		2902	reply => undef,
		2903	tooltip => "Shows information abotu your pets/a specific pet",
		2904	},
		2905	"c/perceiveself" => {
		2906	id => "infobox",
		2907	title => "Perceive Self",
		2908	reply => undef,
		2909	tooltip => "You gained detailed knowledge about yourself",
		2910	},
		2911	"c/uptime" => {
		2912	id => "infobox",
		2913	title => "Uptime",
		2914	reply => undef,
		2915	tooltip => "How long the server has been running since last restart",
		2916	},
		2917	"c/mapinfo" => {
		2918	id => "infobox",
		2919	title => "Map Info",
		2920	reply => undef,
		2921	tooltip => "Information related to the maps",
		2922	},
		2923	"c/party" => {
		2924	id => "party",
		2925	title => "Party",
		2926	reply => "gsay ",
		2927	tooltip => "Messages and chat related to your party",
		2928	},
		2929	"c/death" => {
		2930	id => "death",
		2931	title => "Death",
		2932	reply => undef,
		2933	tooltip => "Reason for and more info about your most recent death",
		2934	},
		2935	"c/say" => $SAY_CHANNEL,
		2936	"c/chat" => $CHAT_CHANNEL,
		2937	);
		2938
		2939	sub cf::client::send_msg {
		2940	my ($self, $channel, $msg, $color, @extra) = @_;
		2941
		2942	$msg = $self->pl->expand_cfpod ($msg)
		2943	unless $color & cf::NDI_VERBATIM;
		2944
		2945	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2946
		2947	# check predefined channels, for the benefit of C
		2948	if ($CHANNEL{$channel}) {
		2949	$channel = $CHANNEL{$channel};
		2950
		2951	$self->ext_msg (channel_info => $channel);
		2952	$channel = $channel->{id};
		2953
		2954	} elsif (ref $channel) {
		2955	# send meta info to client, if not yet sent
		2956	unless (exists $self->{channel}{$channel->{id}}) {
		2957	$self->{channel}{$channel->{id}} = $channel;
		2958	$self->ext_msg (channel_info => $channel);
		2959	}
		2960
		2961	$channel = $channel->{id};
		2962	}
		2963
		2964	return unless @extra || length $msg;
		2965
		2966	# default colour, mask it out
		2967	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2968	if $color & cf::NDI_DEF;
		2969
		2970	my $pkt = "msg "
		2971	. $self->{json_coder}->encode (
		2972	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2973	);
		2974
		2975	$self->send_big_packet ($pkt);
		2976	}
		2977
2058	=item $client->ext_event ($type, %msg)	2978	=item $client->ext_msg ($type, @msg)
2059		2979
2060	Sends an exti event to the client.	2980	Sends an ext event to the client.
2061		2981
2062	=cut	2982	=cut
2063		2983
2064	sub cf::client::ext_event($$%) {	2984	sub cf::client::ext_msg($$@) {
2065	my ($self, $type, %msg) = @_;	2985	my ($self, $type, @msg) = @_;
2066		2986
		2987	if ($self->extcmd == 2) {
		2988	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2989	} elsif ($self->extcmd == 1) { # TODO: remove
2067	$msg{msgtype} = "event_$type";	2990	push @msg, msgtype => "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	2991	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2992	}
		2993	}
		2994
		2995	=item $client->ext_reply ($msgid, @msg)
		2996
		2997	Sends an ext reply to the client.
		2998
		2999	=cut
		3000
		3001	sub cf::client::ext_reply($$@) {
		3002	my ($self, $id, @msg) = @_;
		3003
		3004	if ($self->extcmd == 2) {
		3005	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3006	} elsif ($self->extcmd == 1) {
		3007	#TODO: version 1, remove
		3008	unshift @msg, msgtype => "reply", msgid => $id;
		3009	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3010	}
2069	}	3011	}
2070		3012
2071	=item $success = $client->query ($flags, "text", \&cb)	3013	=item $success = $client->query ($flags, "text", \&cb)
2072		3014
2073	Queues a query to the client, calling the given callback with	3015	Queues a query to the client, calling the given callback with
2074	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3016	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3017	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		3018
2077	Queries can fail, so check the return code. Or don't, as queries will become	3019	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	3020	become reliable at some point in the future.
2079		3021
2080	=cut	3022	=cut
2081		3023
2082	sub cf::client::query {	3024	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	3025	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	3033	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3034	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		3035
2094	$self->send_packet ($self->{query_queue}[0][0])	3036	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	3037	if @{ $self->{query_queue} } == 1;
		3038
		3039	1
2096	}	3040	}
2097		3041
2098	cf::client->attach (	3042	cf::client->attach (
		3043	on_connect => sub {
		3044	my ($ns) = @_;
		3045
		3046	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3047	},
2099	on_reply => sub {	3048	on_reply => sub {
2100	my ($ns, $msg) = @_;	3049	my ($ns, $msg) = @_;
2101		3050
2102	# this weird shuffling is so that direct followup queries	3051	# this weird shuffling is so that direct followup queries
2103	# get handled first	3052	# get handled first
…		…
2115	} else {	3064	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3065	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	3066	}
2118	}	3067	}
2119	},	3068	},
		3069	on_exticmd => sub {
		3070	my ($ns, $buf) = @_;
		3071
		3072	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3073
		3074	if (ref $msg) {
		3075	my ($type, $reply, @payload) =
		3076	"ARRAY" eq ref $msg
		3077	? @$msg
		3078	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3079
		3080	my @reply;
		3081
		3082	if (my $cb = $EXTICMD{$type}) {
		3083	@reply = $cb->($ns, @payload);
		3084	}
		3085
		3086	$ns->ext_reply ($reply, @reply)
		3087	if $reply;
		3088
		3089	} else {
		3090	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3091	}
		3092
		3093	cf::override;
		3094	},
2120	);	3095	);
2121		3096
2122	=item $client->async (\&cb)	3097	=item $client->async (\&cb)
2123		3098
2124	Create a new coroutine, running the specified callback. The coroutine will	3099	Create a new coroutine, running the specified callback. The coroutine will
…		…
2165	our $safe = new Safe "safe";	3140	our $safe = new Safe "safe";
2166	our $safe_hole = new Safe::Hole;	3141	our $safe_hole = new Safe::Hole;
2167		3142
2168	$SIG{FPE} = 'IGNORE';	3143	$SIG{FPE} = 'IGNORE';
2169		3144
2170	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3145	$safe->permit_only (Opcode::opset qw(
		3146	:base_core :base_mem :base_orig :base_math :base_loop
		3147	grepstart grepwhile mapstart mapwhile
		3148	sort time
		3149	));
2171		3150
2172	# here we export the classes and methods available to script code	3151	# here we export the classes and methods available to script code
2173		3152
2174	=pod	3153	=pod
2175		3154
2176	The following functions and methods are available within a safe environment:	3155	The following functions and methods are available within a safe environment:
2177		3156
2178	cf::object contr pay_amount pay_player map	3157	cf::object
		3158	contr pay_amount pay_player map x y force_find force_add destroy
		3159	insert remove name archname title slaying race decrease split
		3160	value
		3161
2179	cf::object::player player	3162	cf::object::player
2180	cf::player peaceful	3163	player
2181	cf::map trigger	3164
		3165	cf::player
		3166	peaceful
		3167
		3168	cf::map
		3169	trigger
2182		3170
2183	=cut	3171	=cut
2184		3172
2185	for (	3173	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	3174	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3175	insert remove inv nrof name archname title slaying race
		3176	decrease split destroy change_exp value msg lore send_msg)],
2187	["cf::object::player" => qw(player)],	3177	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	3178	["cf::player" => qw(peaceful send_msg)],
2189	["cf::map" => qw(trigger)],	3179	["cf::map" => qw(trigger)],
2190	) {	3180	) {
2191	no strict 'refs';	3181	no strict 'refs';
2192	my ($pkg, @funs) = @$_;	3182	my ($pkg, @funs) = @$_;
2193	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3183	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2211		3201
2212	my $qcode = $code;	3202	my $qcode = $code;
2213	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3203	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2214	$qcode =~ s/\n/\\n/g;	3204	$qcode =~ s/\n/\\n/g;
2215		3205
		3206	%vars = (_dummy => 0) unless %vars;
		3207
		3208	my @res;
2216	local $_;	3209	local $_;
2217	local @safe::cf::_safe_eval_args = values %vars;
2218		3210
2219	my $eval =	3211	my $eval =
2220	"do {\n"	3212	"do {\n"
2221	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3213	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2222	. "#line 0 \"{$qcode}\"\n"	3214	. "#line 0 \"{$qcode}\"\n"
2223	. $code	3215	. $code
2224	. "\n}"	3216	. "\n}"
2225	;	3217	;
2226		3218
		3219	if ($CFG{safe_eval}) {
2227	sub_generation_inc;	3220	sub_generation_inc;
		3221	local @safe::cf::_safe_eval_args = values %vars;
2228	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3222	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2229	sub_generation_inc;	3223	sub_generation_inc;
		3224	} else {
		3225	local @cf::_safe_eval_args = values %vars;
		3226	@res = wantarray ? eval eval : scalar eval $eval;
		3227	}
2230		3228
2231	if ($@) {	3229	if ($@) {
2232	warn "$@";	3230	warn "$@";
2233	warn "while executing safe code '$code'\n";	3231	warn "while executing safe code '$code'\n";
2234	warn "with arguments " . (join " ", %vars) . "\n";	3232	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2262	=back	3260	=back
2263		3261
2264	=cut	3262	=cut
2265		3263
2266	#############################################################################	3264	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$family> should best start with the name of the extension
2275	using it, it should be unique.
2276
2277	=over 4
2278
2279	=item $value = cf::db_get $family => $key
2280
2281	Returns a single value from the database.
2282
2283	=item cf::db_put $family => $key => $value
2284
2285	Stores the given C<$value> in the family.
2286
2287	=cut
2288
2289	our $DB;
2290
2291	sub db_init {
2292	unless ($DB) {
2293	$DB = BDB::db_create $DB_ENV;
2294
2295	cf::sync_job {
2296	eval {
2297	$DB->set_flags (BDB::CHKSUM);
2298
2299	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2300	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2301	cf::cleanup "db_open(db): $!" if $!;
2302	};
2303	cf::cleanup "db_open(db): $@" if $@;
2304	};
2305	}
2306	}
2307
2308	sub db_get($$) {
2309	my $key = "$_[0]/$_[1]";
2310
2311	cf::sync_job {
2312	BDB::db_get $DB, undef, $key, my $data;
2313
2314	$! ? ()
2315	: $data
2316	}
2317	}
2318
2319	sub db_put($$$) {
2320	BDB::dbreq_pri 4;
2321	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2322	}
2323
2324	=item cf::cache $id => [$paths...], $processversion => $process
2325
2326	Generic caching function that returns the value of the resource $id,
2327	caching and regenerating as required.
2328
2329	This function can block.
2330
2331	=cut
2332
2333	sub cache {
2334	my ($id, $src, $processversion, $process) = @_;
2335
2336	my $meta =
2337	join "\x00",
2338	$processversion,
2339	map {
2340	aio_stat $_
2341	and Carp::croak "$_: $!";
2342
2343	($_, (stat _)[7,9])
2344	} @$src;
2345
2346	my $dbmeta = db_get cache => "$id/meta";
2347	if ($dbmeta ne $meta) {
2348	# changed, we may need to process
2349
2350	my @data;
2351	my $md5;
2352
2353	for (0 .. $#$src) {
2354	0 <= aio_load $src->[$_], $data[$_]
2355	or Carp::croak "$src->[$_]: $!";
2356	}
2357
2358	# if processing is expensive, check
2359	# checksum first
2360	if (1) {
2361	$md5 =
2362	join "\x00",
2363	$processversion,
2364	map {
2365	Coro::cede;
2366	($src->[$_], Digest::MD5::md5_hex $data[$_])
2367	} 0.. $#$src;
2368
2369
2370	my $dbmd5 = db_get cache => "$id/md5";
2371	if ($dbmd5 eq $md5) {
2372	db_put cache => "$id/meta", $meta;
2373
2374	return db_get cache => "$id/data";
2375	}
2376	}
2377
2378	my $data = $process->(\@data);
2379
2380	db_put cache => "$id/data", $data;
2381	db_put cache => "$id/md5" , $md5;
2382	db_put cache => "$id/meta", $meta;
2383
2384	return $data;
2385	}
2386
2387	db_get cache => "$id/data"
2388	}
2389
2390	=item fork_call { }, $args
2391
2392	Executes the given code block with the given arguments in a seperate
2393	process, returning the results. Everything must be serialisable with
2394	Coro::Storable. May, of course, block. Note that the executed sub may
2395	never block itself or use any form of Event handling.
2396
2397	=cut
2398
2399	sub fork_call(&@) {
2400	my ($cb, @args) = @_;
2401
2402	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2403	# or die "socketpair: $!";
2404	pipe my $fh1, my $fh2
2405	or die "pipe: $!";
2406
2407	if (my $pid = fork) {
2408	close $fh2;
2409
2410	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2411	$res = Coro::Storable::thaw $res;
2412
2413	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2414
2415	die $$res unless "ARRAY" eq ref $res;
2416
2417	return wantarray ? @$res : $res->[-1];
2418	} else {
2419	local $SIG{__WARN__};
2420	eval {
2421	local $SIG{__DIE__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	warn $@ if $@;
2429	_exit 0;
2430	}
2431	}
2432
2433
2434
2435	#############################################################################
2436	# the server's init and main functions	3265	# the server's init and main functions
2437		3266
2438	sub load_facedata($) {	3267	sub load_facedata($) {
2439	my ($path) = @_;	3268	my ($path) = @_;
		3269
		3270	# HACK to clear player env face cache, we need some signal framework
		3271	# for this (global event?)
		3272	%ext::player_env::MUSIC_FACE_CACHE = ();
		3273
		3274	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2440		3275
2441	warn "loading facedata from $path\n";	3276	warn "loading facedata from $path\n";
2442		3277
2443	my $facedata;	3278	my $facedata;
2444	0 < aio_load $path, $facedata	3279	0 < aio_load $path, $facedata
…		…
2447	$facedata = Coro::Storable::thaw $facedata;	3282	$facedata = Coro::Storable::thaw $facedata;
2448		3283
2449	$facedata->{version} == 2	3284	$facedata->{version} == 2
2450	or cf::cleanup "$path: version mismatch, cannot proceed.";	3285	or cf::cleanup "$path: version mismatch, cannot proceed.";
2451		3286
		3287	# patch in the exptable
		3288	$facedata->{resource}{"res/exp_table"} = {
		3289	type => FT_RSRC,
		3290	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3291	};
		3292	cf::cede_to_tick;
		3293
2452	{	3294	{
2453	my $faces = $facedata->{faceinfo};	3295	my $faces = $facedata->{faceinfo};
2454		3296
2455	while (my ($face, $info) = each %$faces) {	3297	while (my ($face, $info) = each %$faces) {
2456	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3298	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3299
2457	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3300	cf::face::set_visibility $idx, $info->{visibility};
		3301	cf::face::set_magicmap $idx, $info->{magicmap};
2458	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3302	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2459	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3303	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2460	Coro::cede;	3304
		3305	cf::cede_to_tick;
2461	}	3306	}
2462		3307
2463	while (my ($face, $info) = each %$faces) {	3308	while (my ($face, $info) = each %$faces) {
2464	next unless $info->{smooth};	3309	next unless $info->{smooth};
		3310
2465	my $idx = cf::face::find $face	3311	my $idx = cf::face::find $face
2466	or next;	3312	or next;
		3313
2467	if (my $smooth = cf::face::find $info->{smooth}) {	3314	if (my $smooth = cf::face::find $info->{smooth}) {
		3315	cf::face::set_smooth $idx, $smooth;
2468	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3316	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2469	} else {	3317	} else {
2470	warn "smooth face '$info->{smooth}' not found for face '$face'";	3318	warn "smooth face '$info->{smooth}' not found for face '$face'";
2471	}	3319	}
2472	Coro::cede;	3320
		3321	cf::cede_to_tick;
2473	}	3322	}
2474	}	3323	}
2475		3324
2476	{	3325	{
2477	my $anims = $facedata->{animinfo};	3326	my $anims = $facedata->{animinfo};
2478		3327
2479	while (my ($anim, $info) = each %$anims) {	3328	while (my ($anim, $info) = each %$anims) {
2480	cf::anim::set $anim, $info->{frames}, $info->{facings};	3329	cf::anim::set $anim, $info->{frames}, $info->{facings};
2481	Coro::cede;	3330	cf::cede_to_tick;
2482	}	3331	}
2483		3332
2484	cf::anim::invalidate_all; # d'oh	3333	cf::anim::invalidate_all; # d'oh
2485	}	3334	}
2486		3335
		3336	{
		3337	my $res = $facedata->{resource};
		3338
		3339	while (my ($name, $info) = each %$res) {
		3340	if (defined $info->{type}) {
		3341	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3342
		3343	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3344	cf::face::set_type $idx, $info->{type};
		3345	} else {
		3346	$RESOURCE{$name} = $info;
		3347	}
		3348
		3349	cf::cede_to_tick;
		3350	}
		3351	}
		3352
		3353	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3354
2487	1	3355	1
2488	}	3356	}
2489		3357
		3358	cf::global->attach (on_resource_update => sub {
		3359	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3360	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3361
		3362	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3363	my $sound = $soundconf->{compat}[$_]
		3364	or next;
		3365
		3366	my $face = cf::face::find "sound/$sound->[1]";
		3367	cf::sound::set $sound->[0] => $face;
		3368	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3369	}
		3370
		3371	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3372	my $face = cf::face::find "sound/$v";
		3373	cf::sound::set $k => $face;
		3374	}
		3375	}
		3376	});
		3377
		3378	register_exticmd fx_want => sub {
		3379	my ($ns, $want) = @_;
		3380
		3381	while (my ($k, $v) = each %$want) {
		3382	$ns->fx_want ($k, $v);
		3383	}
		3384	};
		3385
		3386	sub load_resource_file($) {
		3387	my $guard = lock_acquire "load_resource_file";
		3388
		3389	my $status = load_resource_file_ $_[0];
		3390	get_slot 0.1, 100;
		3391	cf::arch::commit_load;
		3392
		3393	$status
		3394	}
		3395
		3396	sub reload_regions {
		3397	# HACK to clear player env face cache, we need some signal framework
		3398	# for this (global event?)
		3399	%ext::player_env::MUSIC_FACE_CACHE = ();
		3400
		3401	load_resource_file "$MAPDIR/regions"
		3402	or die "unable to load regions file\n";
		3403
		3404	for (cf::region::list) {
		3405	$_->{match} = qr/$_->{match}/
		3406	if exists $_->{match};
		3407	}
		3408	}
		3409
2490	sub reload_facedata {	3410	sub reload_facedata {
2491	load_facedata sprintf "%s/facedata", cf::datadir	3411	load_facedata "$DATADIR/facedata"
2492	or die "unable to load facedata\n";	3412	or die "unable to load facedata\n";
2493	}	3413	}
2494		3414
2495	sub reload_regions {
2496	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2497	or die "unable to load regions file\n";
2498	}
2499
2500	sub reload_archetypes {	3415	sub reload_archetypes {
2501	load_resource_file sprintf "%s/archetypes", cf::datadir	3416	load_resource_file "$DATADIR/archetypes"
2502	or die "unable to load archetypes\n";	3417	or die "unable to load archetypes\n";
2503	}	3418	}
2504		3419
2505	sub reload_treasures {	3420	sub reload_treasures {
2506	load_resource_file sprintf "%s/treasures", cf::datadir	3421	load_resource_file "$DATADIR/treasures"
2507	or die "unable to load treasurelists\n";	3422	or die "unable to load treasurelists\n";
2508	}	3423	}
2509		3424
2510	sub reload_resources {	3425	sub reload_resources {
2511	warn "reloading resource files...\n";	3426	warn "reloading resource files...\n";
2512		3427
2513	reload_regions;
2514	reload_facedata;	3428	reload_facedata;
2515	reload_archetypes;	3429	reload_archetypes;
		3430	reload_regions;
2516	reload_treasures;	3431	reload_treasures;
2517		3432
2518	warn "finished reloading resource files\n";	3433	warn "finished reloading resource files\n";
2519	}	3434	}
2520		3435
2521	sub init {	3436	sub reload_config {
2522	reload_resources;	3437	warn "reloading config file...\n";
2523	}
2524		3438
2525	sub cfg_load {
2526	open my $fh, "<:utf8", cf::confdir . "/config"	3439	open my $fh, "<:utf8", "$CONFDIR/config"
2527	or return;	3440	or return;
2528		3441
2529	local $/;	3442	local $/;
2530	*CFG = YAML::Syck::Load <$fh>;	3443	*CFG = YAML::XS::Load scalar <$fh>;
2531		3444
2532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3445	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2533		3446
2534	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3447	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2535	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3448	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2539	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3452	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2540	and die "WARNING: m(un)lockall failed: $!\n";	3453	and die "WARNING: m(un)lockall failed: $!\n";
2541	};	3454	};
2542	warn $@ if $@;	3455	warn $@ if $@;
2543	}	3456	}
		3457
		3458	warn "finished reloading resource files\n";
		3459	}
		3460
		3461	sub pidfile() {
		3462	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3463	or die "$PIDFILE: $!";
		3464	flock $fh, &Fcntl::LOCK_EX
		3465	or die "$PIDFILE: flock: $!";
		3466	$fh
		3467	}
		3468
		3469	# make sure only one server instance is running at any one time
		3470	sub atomic {
		3471	my $fh = pidfile;
		3472
		3473	my $pid = <$fh>;
		3474	kill 9, $pid if $pid > 0;
		3475
		3476	seek $fh, 0, 0;
		3477	print $fh $$;
		3478	}
		3479
		3480	sub main_loop {
		3481	warn "EV::loop starting\n";
		3482	if (1) {
		3483	EV::loop;
		3484	}
		3485	warn "EV::loop returned\n";
		3486	goto &main_loop unless $REALLY_UNLOOP;
2544	}	3487	}
2545		3488
2546	sub main {	3489	sub main {
		3490	cf::init_globals; # initialise logging
		3491
		3492	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3493	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3494	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3495	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3496
		3497	cf::init_experience;
		3498	cf::init_anim;
		3499	cf::init_attackmess;
		3500	cf::init_dynamic;
		3501
		3502	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3503
2547	# we must not ever block the main coroutine	3504	# we must not ever block the main coroutine
2548	local $Coro::idle = sub {	3505	local $Coro::idle = sub {
2549	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3506	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2550	(async {	3507	(async {
2551	Event::one_event;	3508	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3509	EV::loop EV::LOOP_ONESHOT;
2552	})->prio (Coro::PRIO_MAX);	3510	})->prio (Coro::PRIO_MAX);
2553	};	3511	};
2554		3512
2555	cfg_load;	3513	evthread_start IO::AIO::poll_fileno;
		3514
		3515	cf::sync_job {
		3516	cf::load_settings;
		3517	cf::load_materials;
		3518
		3519	reload_resources;
		3520	reload_config;
2556	db_init;	3521	db_init;
		3522
		3523	cf::init_uuid;
		3524	cf::init_signals;
		3525	cf::init_commands;
		3526	cf::init_skills;
		3527
		3528	cf::init_beforeplay;
		3529
		3530	atomic;
		3531
2557	load_extensions;	3532	load_extensions;
2558		3533
2559	$TICK_WATCHER->start;	3534	utime time, time, $RUNTIMEFILE;
2560	Event::loop;	3535
		3536	# no (long-running) fork's whatsoever before this point(!)
		3537	use POSIX ();
		3538	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3539
		3540	(pop @POST_INIT)->(0) while @POST_INIT;
		3541	};
		3542
		3543	main_loop;
2561	}	3544	}
2562		3545
2563	#############################################################################	3546	#############################################################################
2564	# initialisation and cleanup	3547	# initialisation and cleanup
2565		3548
2566	# install some emergency cleanup handlers	3549	# install some emergency cleanup handlers
2567	BEGIN {	3550	BEGIN {
		3551	our %SIGWATCHER = ();
2568	for my $signal (qw(INT HUP TERM)) {	3552	for my $signal (qw(INT HUP TERM)) {
2569	Event->signal (	3553	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2570	reentrant => 0,
2571	data => WF_AUTOCANCEL,
2572	signal => $signal,
2573	prio => 0,
2574	cb => sub {
2575	cf::cleanup "SIG$signal";	3554	cf::cleanup "SIG$signal";
2576	},
2577	);	3555	};
		3556	}
		3557	}
		3558
		3559	sub write_runtime_sync {
		3560	# first touch the runtime file to show we are still running:
		3561	# the fsync below can take a very very long time.
		3562
		3563	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3564
		3565	my $guard = cf::lock_acquire "write_runtime";
		3566
		3567	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3568	or return;
		3569
		3570	my $value = $cf::RUNTIME + 90 + 10;
		3571	# 10 is the runtime save interval, for a monotonic clock
		3572	# 60 allows for the watchdog to kill the server.
		3573
		3574	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3575	and return;
		3576
		3577	# always fsync - this file is important
		3578	aio_fsync $fh
		3579	and return;
		3580
		3581	# touch it again to show we are up-to-date
		3582	aio_utime $fh, undef, undef;
		3583
		3584	close $fh
		3585	or return;
		3586
		3587	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3588	and return;
		3589
		3590	warn "runtime file written.\n";
		3591
2578	}	3592	1
		3593	}
		3594
		3595	our $uuid_lock;
		3596	our $uuid_skip;
		3597
		3598	sub write_uuid_sync($) {
		3599	$uuid_skip ||= $_[0];
		3600
		3601	return if $uuid_lock;
		3602	local $uuid_lock = 1;
		3603
		3604	my $uuid = "$LOCALDIR/uuid";
		3605
		3606	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3607	or return;
		3608
		3609	my $value = uuid_seq uuid_cur;
		3610
		3611	unless ($value) {
		3612	warn "cowardly refusing to write zero uuid value!\n";
		3613	return;
		3614	}
		3615
		3616	my $value = uuid_str $value + $uuid_skip;
		3617	$uuid_skip = 0;
		3618
		3619	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3620	and return;
		3621
		3622	# always fsync - this file is important
		3623	aio_fsync $fh
		3624	and return;
		3625
		3626	close $fh
		3627	or return;
		3628
		3629	aio_rename "$uuid~", $uuid
		3630	and return;
		3631
		3632	warn "uuid file written ($value).\n";
		3633
		3634	1
		3635
		3636	}
		3637
		3638	sub write_uuid($$) {
		3639	my ($skip, $sync) = @_;
		3640
		3641	$sync ? write_uuid_sync $skip
		3642	: async { write_uuid_sync $skip };
2579	}	3643	}
2580		3644
2581	sub emergency_save() {	3645	sub emergency_save() {
2582	my $freeze_guard = cf::freeze_mainloop;	3646	my $freeze_guard = cf::freeze_mainloop;
2583		3647
2584	warn "enter emergency perl save\n";	3648	warn "emergency_perl_save: enter\n";
2585		3649
2586	cf::sync_job {	3650	cf::sync_job {
		3651	# this is a trade-off: we want to be very quick here, so
		3652	# save all maps without fsync, and later call a global sync
		3653	# (which in turn might be very very slow)
		3654	local $USE_FSYNC = 0;
		3655
2587	# use a peculiar iteration method to avoid tripping on perl	3656	# use a peculiar iteration method to avoid tripping on perl
2588	# refcount bugs in for. also avoids problems with players	3657	# refcount bugs in for. also avoids problems with players
2589	# and maps saved/destroyed asynchronously.	3658	# and maps saved/destroyed asynchronously.
2590	warn "begin emergency player save\n";	3659	warn "emergency_perl_save: begin player save\n";
2591	for my $login (keys %cf::PLAYER) {	3660	for my $login (keys %cf::PLAYER) {
2592	my $pl = $cf::PLAYER{$login} or next;	3661	my $pl = $cf::PLAYER{$login} or next;
2593	$pl->valid or next;	3662	$pl->valid or next;
		3663	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2594	$pl->save;	3664	$pl->save;
2595	}	3665	}
2596	warn "end emergency player save\n";	3666	warn "emergency_perl_save: end player save\n";
2597		3667
2598	warn "begin emergency map save\n";	3668	warn "emergency_perl_save: begin map save\n";
2599	for my $path (keys %cf::MAP) {	3669	for my $path (keys %cf::MAP) {
2600	my $map = $cf::MAP{$path} or next;	3670	my $map = $cf::MAP{$path} or next;
2601	$map->valid or next;	3671	$map->valid or next;
2602	$map->save;	3672	$map->save;
2603	}	3673	}
2604	warn "end emergency map save\n";	3674	warn "emergency_perl_save: end map save\n";
2605		3675
2606	warn "begin emergency database checkpoint\n";	3676	warn "emergency_perl_save: begin database checkpoint\n";
2607	BDB::db_env_txn_checkpoint $DB_ENV;	3677	BDB::db_env_txn_checkpoint $DB_ENV;
2608	warn "end emergency database checkpoint\n";	3678	warn "emergency_perl_save: end database checkpoint\n";
		3679
		3680	warn "emergency_perl_save: begin write uuid\n";
		3681	write_uuid_sync 1;
		3682	warn "emergency_perl_save: end write uuid\n";
2609	};	3683	};
2610		3684
		3685	warn "emergency_perl_save: starting sync()\n";
		3686	IO::AIO::aio_sync sub {
		3687	warn "emergency_perl_save: finished sync()\n";
		3688	};
		3689
2611	warn "leave emergency perl save\n";	3690	warn "emergency_perl_save: leave\n";
2612	}	3691	}
2613		3692
2614	sub post_cleanup {	3693	sub post_cleanup {
2615	my ($make_core) = @_;	3694	my ($make_core) = @_;
2616		3695
2617	warn Carp::longmess "post_cleanup backtrace"	3696	warn Carp::longmess "post_cleanup backtrace"
2618	if $make_core;	3697	if $make_core;
		3698
		3699	my $fh = pidfile;
		3700	unlink $PIDFILE if <$fh> == $$;
		3701	}
		3702
		3703	# a safer delete_package, copied from Symbol
		3704	sub clear_package($) {
		3705	my $pkg = shift;
		3706
		3707	# expand to full symbol table name if needed
		3708	unless ($pkg =~ /^main::.*::$/) {
		3709	$pkg = "main$pkg" if $pkg =~ /^::/;
		3710	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3711	$pkg .= '::' unless $pkg =~ /::$/;
		3712	}
		3713
		3714	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3715	my $stem_symtab = *{$stem}{HASH};
		3716
		3717	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3718	or return;
		3719
		3720	# clear all symbols
		3721	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3722	for my $name (keys %$leaf_symtab) {
		3723	_gv_clear *{"$pkg$name"};
		3724	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3725	}
		3726	warn "cleared package $pkg\n";#d#
2619	}	3727	}
2620		3728
2621	sub do_reload_perl() {	3729	sub do_reload_perl() {
2622	# can/must only be called in main	3730	# can/must only be called in main
2623	if ($Coro::current != $Coro::main) {	3731	if ($Coro::current != $Coro::main) {
2624	warn "can only reload from main coroutine";	3732	warn "can only reload from main coroutine";
2625	return;	3733	return;
2626	}	3734	}
2627		3735
		3736	return if $RELOAD++;
		3737
		3738	my $t1 = EV::time;
		3739
		3740	while ($RELOAD) {
2628	warn "reloading...";	3741	warn "reloading...";
2629		3742
2630	warn "entering sync_job";	3743	warn "entering sync_job";
2631		3744
2632	cf::sync_job {	3745	cf::sync_job {
2633	cf::write_runtime; # external watchdog should not bark	3746	cf::write_runtime_sync; # external watchdog should not bark
2634	cf::emergency_save;	3747	cf::emergency_save;
2635	cf::write_runtime; # external watchdog should not bark	3748	cf::write_runtime_sync; # external watchdog should not bark
2636		3749
2637	warn "syncing database to disk";	3750	warn "syncing database to disk";
2638	BDB::db_env_txn_checkpoint $DB_ENV;	3751	BDB::db_env_txn_checkpoint $DB_ENV;
2639		3752
2640	# if anything goes wrong in here, we should simply crash as we already saved	3753	# if anything goes wrong in here, we should simply crash as we already saved
2641		3754
2642	warn "cancelling all WF_AUTOCANCEL watchers";
2643	for (Event::all_watchers) {
2644	$_->cancel if $_->data & WF_AUTOCANCEL;
2645	}
2646
2647	warn "flushing outstanding aio requests";	3755	warn "flushing outstanding aio requests";
2648	for (;;) {
2649	BDB::flush;
2650	IO::AIO::flush;
2651	Coro::cede;
2652	last unless IO::AIO::nreqs || BDB::nreqs;	3756	while (IO::AIO::nreqs || BDB::nreqs) {
2653	warn "iterate...";	3757	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2654	}
2655
2656	++$RELOAD;
2657
2658	warn "cancelling all extension coros";
2659	$_->cancel for values %EXT_CORO;
2660	%EXT_CORO = ();
2661
2662	warn "removing commands";
2663	%COMMAND = ();
2664
2665	warn "removing ext commands";
2666	%EXTCMD = ();
2667
2668	warn "unloading/nuking all extensions";
2669	for my $pkg (@EXTS) {
2670	warn "... unloading $pkg";
2671
2672	if (my $cb = $pkg->can ("unload")) {
2673	eval {
2674	$cb->($pkg);
2675	1
2676	} or warn "$pkg unloaded, but with errors: $@";
2677	}	3758	}
2678		3759
2679	warn "... nuking $pkg";	3760	warn "cancelling all extension coros";
2680	Symbol::delete_package $pkg;	3761	$_->cancel for values %EXT_CORO;
2681	}	3762	%EXT_CORO = ();
2682		3763
2683	warn "unloading all perl modules loaded from $LIBDIR";	3764	warn "removing commands";
2684	while (my ($k, $v) = each %INC) {	3765	%COMMAND = ();
2685	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2686		3766
		3767	warn "removing ext/exti commands";
		3768	%EXTCMD = ();
		3769	%EXTICMD = ();
		3770
		3771	warn "unloading/nuking all extensions";
		3772	for my $pkg (@EXTS) {
2687	warn "... unloading $k";	3773	warn "... unloading $pkg";
2688	delete $INC{$k};
2689		3774
2690	$k =~ s/\.pm$//;
2691	$k =~ s/\//::/g;
2692
2693	if (my $cb = $k->can ("unload_module")) {	3775	if (my $cb = $pkg->can ("unload")) {
		3776	eval {
2694	$cb->();	3777	$cb->($pkg);
		3778	1
		3779	} or warn "$pkg unloaded, but with errors: $@";
		3780	}
		3781
		3782	warn "... clearing $pkg";
		3783	clear_package $pkg;
2695	}	3784	}
2696		3785
2697	Symbol::delete_package $k;	3786	warn "unloading all perl modules loaded from $LIBDIR";
		3787	while (my ($k, $v) = each %INC) {
		3788	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3789
		3790	warn "... unloading $k";
		3791	delete $INC{$k};
		3792
		3793	$k =~ s/\.pm$//;
		3794	$k =~ s/\//::/g;
		3795
		3796	if (my $cb = $k->can ("unload_module")) {
		3797	$cb->();
		3798	}
		3799
		3800	clear_package $k;
2698	}	3801	}
2699		3802
2700	warn "getting rid of safe::, as good as possible";	3803	warn "getting rid of safe::, as good as possible";
2701	Symbol::delete_package "safe::$_"	3804	clear_package "safe::$_"
2702	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3805	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2703		3806
2704	warn "unloading cf.pm \"a bit\"";	3807	warn "unloading cf.pm \"a bit\"";
2705	delete $INC{"cf.pm"};	3808	delete $INC{"cf.pm"};
2706	delete $INC{"cf/pod.pm"};	3809	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2707		3810
2708	# don't, removes xs symbols, too,	3811	# don't, removes xs symbols, too,
2709	# and global variables created in xs	3812	# and global variables created in xs
2710	#Symbol::delete_package __PACKAGE__;	3813	#clear_package __PACKAGE__;
2711		3814
2712	warn "unload completed, starting to reload now";	3815	warn "unload completed, starting to reload now";
2713		3816
2714	warn "reloading cf.pm";	3817	warn "reloading cf.pm";
2715	require cf;	3818	require cf;
2716	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3819	cf::_connect_to_perl_1;
2717		3820
2718	warn "loading config and database again";	3821	warn "loading config and database again";
2719	cf::cfg_load;	3822	cf::reload_config;
2720		3823
2721	warn "loading extensions";	3824	warn "loading extensions";
2722	cf::load_extensions;	3825	cf::load_extensions;
2723		3826
		3827	if ($REATTACH_ON_RELOAD) {
2724	warn "reattaching attachments to objects/players";	3828	warn "reattaching attachments to objects/players";
2725	_global_reattach; # objects, sockets	3829	_global_reattach; # objects, sockets
2726	warn "reattaching attachments to maps";	3830	warn "reattaching attachments to maps";
2727	reattach $_ for values %MAP;	3831	reattach $_ for values %MAP;
2728	warn "reattaching attachments to players";	3832	warn "reattaching attachments to players";
2729	reattach $_ for values %PLAYER;	3833	reattach $_ for values %PLAYER;
		3834	}
2730		3835
		3836	warn "running post_init jobs";
		3837	(pop @POST_INIT)->(1) while @POST_INIT;
		3838
2731	warn "leaving sync_job";	3839	warn "leaving sync_job";
2732		3840
2733	1	3841	1
2734	} or do {	3842	} or do {
2735	warn $@;	3843	warn $@;
2736	warn "error while reloading, exiting.";	3844	cf::cleanup "error while reloading, exiting.";
2737	exit 1;
2738	};	3845	};
2739		3846
2740	warn "reloaded";	3847	warn "reloaded";
		3848	--$RELOAD;
		3849	}
		3850
		3851	$t1 = EV::time - $t1;
		3852	warn "reload completed in ${t1}s\n";
2741	};	3853	};
2742		3854
2743	our $RELOAD_WATCHER; # used only during reload	3855	our $RELOAD_WATCHER; # used only during reload
2744		3856
2745	sub reload_perl() {	3857	sub reload_perl() {
2746	# doing reload synchronously and two reloads happen back-to-back,	3858	# doing reload synchronously and two reloads happen back-to-back,
2747	# coro crashes during coro_state_free->destroy here.	3859	# coro crashes during coro_state_free->destroy here.
2748		3860
2749	$RELOAD_WATCHER ||= Event->timer (	3861	$RELOAD_WATCHER ||= cf::async {
2750	reentrant => 0,	3862	Coro::AIO::aio_wait cache_extensions;
2751	after => 0,	3863
2752	data => WF_AUTOCANCEL,	3864	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2753	cb => sub {
2754	do_reload_perl;	3865	do_reload_perl;
2755	undef $RELOAD_WATCHER;	3866	undef $RELOAD_WATCHER;
2756	},	3867	};
2757	);	3868	};
2758	}	3869	}
2759		3870
2760	register_command "reload" => sub {	3871	register_command "reload" => sub {
2761	my ($who, $arg) = @_;	3872	my ($who, $arg) = @_;
2762		3873
2763	if ($who->flag (FLAG_WIZ)) {	3874	if ($who->flag (FLAG_WIZ)) {
2764	$who->message ("reloading server.");	3875	$who->message ("reloading server.");
		3876	async {
		3877	$Coro::current->{desc} = "perl_reload";
2765	async { reload_perl };	3878	reload_perl;
		3879	};
2766	}	3880	}
2767	};	3881	};
2768		3882
2769	unshift @INC, $LIBDIR;	3883	unshift @INC, $LIBDIR;
2770		3884
…		…
2772		3886
2773	our @WAIT_FOR_TICK;	3887	our @WAIT_FOR_TICK;
2774	our @WAIT_FOR_TICK_BEGIN;	3888	our @WAIT_FOR_TICK_BEGIN;
2775		3889
2776	sub wait_for_tick {	3890	sub wait_for_tick {
2777	return unless $TICK_WATCHER->is_active;
2778	return if $Coro::current == $Coro::main;	3891	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2779		3892
2780	my $signal = new Coro::Signal;	3893	my $signal = new Coro::Signal;
2781	push @WAIT_FOR_TICK, $signal;	3894	push @WAIT_FOR_TICK, $signal;
2782	$signal->wait;	3895	$signal->wait;
2783	}	3896	}
2784		3897
2785	sub wait_for_tick_begin {	3898	sub wait_for_tick_begin {
2786	return unless $TICK_WATCHER->is_active;
2787	return if $Coro::current == $Coro::main;	3899	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2788		3900
2789	my $signal = new Coro::Signal;	3901	my $signal = new Coro::Signal;
2790	push @WAIT_FOR_TICK_BEGIN, $signal;	3902	push @WAIT_FOR_TICK_BEGIN, $signal;
2791	$signal->wait;	3903	$signal->wait;
2792	}	3904	}
2793		3905
2794	$TICK_WATCHER = Event->timer (	3906	sub tick {
2795	reentrant => 0,
2796	parked => 1,
2797	prio => 0,
2798	at => $NEXT_TICK || $TICK,
2799	data => WF_AUTOCANCEL,
2800	cb => sub {
2801	if ($Coro::current != $Coro::main) {	3907	if ($Coro::current != $Coro::main) {
2802	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3908	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2803	unless ++$bug_warning > 10;	3909	unless ++$bug_warning > 10;
2804	return;	3910	return;
2805	}	3911	}
2806		3912
2807	$NOW = Event::time;
2808
2809	cf::server_tick; # one server iteration	3913	cf::server_tick; # one server iteration
2810		3914
2811	$RUNTIME += $TICK;
2812	$NEXT_TICK += $TICK;
2813
2814	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3915	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2815	$NEXT_RUNTIME_WRITE = $NOW + 10;	3916	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2816	Coro::async_pool {	3917	Coro::async_pool {
		3918	$Coro::current->{desc} = "runtime saver";
2817	write_runtime	3919	write_runtime_sync
2818	or warn "ERROR: unable to write runtime file: $!";	3920	or warn "ERROR: unable to write runtime file: $!";
2819	};
2820	}	3921	};
		3922	}
2821		3923
2822	# my $AFTER = Event::time;
2823	# warn $AFTER - $NOW;#d#
2824
2825	# if we are delayed by four ticks or more, skip them all
2826	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2827
2828	$TICK_WATCHER->at ($NEXT_TICK);
2829	$TICK_WATCHER->start;
2830
2831	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3924	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2832	$sig->send;	3925	$sig->send;
2833	}	3926	}
2834	while (my $sig = shift @WAIT_FOR_TICK) {	3927	while (my $sig = shift @WAIT_FOR_TICK) {
2835	$sig->send;	3928	$sig->send;
2836	}
2837
2838	_post_tick;
2839	},	3929	}
2840	);	3930
		3931	$LOAD = ($NOW - $TICK_START) / $TICK;
		3932	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3933
		3934	if (0) {
		3935	if ($NEXT_TICK) {
		3936	my $jitter = $TICK_START - $NEXT_TICK;
		3937	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3938	warn "jitter $JITTER\n";#d#
		3939	}
		3940	}
		3941	}
2841		3942
2842	{	3943	{
2843	BDB::max_poll_time $TICK * 0.1;	3944	# configure BDB
2844	$BDB_POLL_WATCHER = Event->io (	3945
2845	reentrant => 0,
2846	fd => BDB::poll_fileno,
2847	poll => 'r',
2848	prio => 0,
2849	data => WF_AUTOCANCEL,
2850	cb => \&BDB::poll_cb,
2851	);
2852	BDB::min_parallel 8;	3946	BDB::min_parallel 8;
2853		3947	BDB::max_poll_reqs $TICK * 0.1;
2854	BDB::set_sync_prepare {	3948	$AnyEvent::BDB::WATCHER->priority (1);
2855	my $status;
2856	my $current = $Coro::current;
2857	(
2858	sub {
2859	$status = $!;
2860	$current->ready; undef $current;
2861	},
2862	sub {
2863	Coro::schedule while defined $current;
2864	$! = $status;
2865	},
2866	)
2867	};
2868		3949
2869	unless ($DB_ENV) {	3950	unless ($DB_ENV) {
2870	$DB_ENV = BDB::db_env_create;	3951	$DB_ENV = BDB::db_env_create;
		3952	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3953	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3954	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3955	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3956	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2871		3957
2872	cf::sync_job {	3958	cf::sync_job {
2873	eval {	3959	eval {
2874	BDB::db_env_open	3960	BDB::db_env_open
2875	$DB_ENV,	3961	$DB_ENV,
2876	$BDB_ENV_DIR,	3962	$BDBDIR,
2877	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3963	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2878	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3964	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2879	0666;	3965	0666;
2880		3966
2881	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3967	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2882
2883	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2884	$DB_ENV->set_lk_detect;
2885	};	3968	};
2886		3969
2887	cf::cleanup "db_env_open(db): $@" if $@;	3970	cf::cleanup "db_env_open(db): $@" if $@;
2888	};	3971	};
2889	}	3972	}
		3973
		3974	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3975	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3976	};
		3977	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3978	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3979	};
		3980	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3981	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3982	};
2890	}	3983	}
2891		3984
2892	{	3985	{
		3986	# configure IO::AIO
		3987
2893	IO::AIO::min_parallel 8;	3988	IO::AIO::min_parallel 8;
2894
2895	undef $Coro::AIO::WATCHER;
2896	IO::AIO::max_poll_time $TICK * 0.1;	3989	IO::AIO::max_poll_time $TICK * 0.1;
2897	$AIO_POLL_WATCHER = Event->io (	3990	undef $AnyEvent::AIO::WATCHER;
2898	reentrant => 0,	3991	}
2899	data => WF_AUTOCANCEL,	3992
2900	fd => IO::AIO::poll_fileno,	3993	my $_log_backtrace;
2901	poll => 'r',	3994
2902	prio => 6,	3995	sub _log_backtrace {
2903	cb => \&IO::AIO::poll_cb,	3996	my ($msg, @addr) = @_;
2904	);	3997
		3998	$msg =~ s/\n//;
		3999
		4000	# limit the # of concurrent backtraces
		4001	if ($_log_backtrace < 2) {
		4002	++$_log_backtrace;
		4003	my $perl_bt = Carp::longmess $msg;
		4004	async {
		4005	$Coro::current->{desc} = "abt $msg";
		4006
		4007	my @bt = fork_call {
		4008	@addr = map { sprintf "%x", $_ } @addr;
		4009	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4010	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4011	or die "addr2line: $!";
		4012
		4013	my @funcs;
		4014	my @res = <$fh>;
		4015	chomp for @res;
		4016	while (@res) {
		4017	my ($func, $line) = splice @res, 0, 2, ();
		4018	push @funcs, "[$func] $line";
		4019	}
		4020
		4021	@funcs
		4022	};
		4023
		4024	LOG llevInfo, "[ABT] $perl_bt\n";
		4025	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4026	LOG llevInfo, "[ABT] $_\n" for @bt;
		4027	--$_log_backtrace;
		4028	};
		4029	} else {
		4030	LOG llevInfo, "[ABT] $msg\n";
		4031	LOG llevInfo, "[ABT] [suppressed]\n";
		4032	}
2905	}	4033	}
2906		4034
2907	# load additional modules	4035	# load additional modules
2908	use cf::pod;	4036	require "cf/$_.pm" for @EXTRA_MODULES;
		4037	cf::_connect_to_perl_2;
2909		4038
2910	END { cf::emergency_save }	4039	END { cf::emergency_save }
2911		4040
2912	1	4041	1
2913		4042

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