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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.223 by root, Sun Mar 11 02:12:44 2007 UTC vs.
Revision 1.511 by root, Wed Apr 7 18:35:56 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.5 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
20	use BDB ();	56	use BDB ();
21	use Data::Dumper;	57	use Data::Dumper;
22	use Digest::MD5;
23	use Fcntl;	58	use Fcntl;
24	use IO::AIO 2.32 ();
25	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
26	use Time::HiRes;	61	use Time::HiRes;
27	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
28		64
		65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		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";
29	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
30		77
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		82
40	our %COMMAND = ();	83	our %COMMAND = ();
41	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
42		85
43	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
47		91
48	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
49	our @EVENT;	93	our @EVENT;
50	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
51		96
52	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
53	our $TICK_WATCHER;	98	our $DATADIR = datadir;
54	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
55	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
56	our $NEXT_TICK;	115	our $NEXT_TICK;
57	our $NOW;
58	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
59		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
60	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
61	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
62		124
63	our %CFG;	125	our %CFG;
64		126
65	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
66	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
67		130
68	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
69	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
70	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
71	our $RANDOM_MAPS = cf::localdir . "/random";
72	our $BDB_ENV_DIR = cf::localdir . "/db";
73
74	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
75	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
76		134
77	# 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 ∕
78	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
79		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 $REALLY_UNLOOP; # never set to true, please :)
		147
80	binmode STDOUT;	148	binmode STDOUT;
81	binmode STDERR;	149	binmode STDERR;
82		150
83	# read virtual server time, if available	151	# read virtual server time, if available
84	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
85	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
86	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
87	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
88	}	156	}
89		157
90	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
91	mkdir cf::localdir . "/" . cf::playerdir;	159
92	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
93	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
94	mkdir $RANDOM_MAPS;
95	mkdir $BDB_ENV_DIR;
96		162
97	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
98		164
99	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::"} };
100		177
101	#############################################################################	178	#############################################################################
102		179
103	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
104		181
…		…
111	=item $cf::RUNTIME	188	=item $cf::RUNTIME
112		189
113	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
114	every server tick.	191	every server tick.
115		192
116	=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
117		196
118	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
119	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.
120		201
121	=item $cf::NOW	202	=item $cf::NOW
122		203
123	The time of the last (current) server tick.	204	The time of the last (current) server tick.
124		205
125	=item $cf::TICK	206	=item $cf::TICK
126		207
127	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
128		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
129	=item %cf::CFG	220	=item %cf::CFG
130		221
131	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
132	from wherever your confdir points to.	223	from wherever your confdir points to.
133		224
134	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
135		226
136	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
137	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	228	returns directly I<after> the tick processing (and consequently, can only wake one process
138	processing has been done. Call C<< ->wait >> on them to maximise the	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
139	window of cpu time available, or simply to synchronise to the server tick.	230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
140		242
141	=back	243	=back
142		244
143	=cut	245	=cut
144		246
145	BEGIN {	247	$Coro::State::WARNHOOK = sub {
146	*CORE::GLOBAL::warn = sub {
147	my $msg = join "", @_;	248	my $msg = join "", @_;
148	utf8::encode $msg;
149		249
150	$msg .= "\n"	250	$msg .= "\n"
151	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
152		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
153	LOG llevError, $msg;	255	LOG llevError, $msg;
154	};	256	};
155	}	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	};
156		271
157	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
158	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
159	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
160	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
161	@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';
162	@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)
163		279
164	# 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
165	# within the Safe compartment.	281	# within the Safe compartment.
166	for my $pkg (qw(	282	for my $pkg (qw(
167	cf::global cf::attachable	283	cf::global cf::attachable
168	cf::object cf::object::player	284	cf::object cf::object::player
169	cf::client cf::player	285	cf::client cf::player
170	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
171	cf::map cf::party cf::region	288	cf::party cf::region
172	)) {	289	)) {
173	no strict 'refs';
174	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
175	}	291	}
176		292
177	$Event::DIED = sub {	293	$EV::DIED = sub {
178	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
179	};	295	};
		296
		297	#############################################################################
180		298
181	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
182		300
183	=over 4	301	=over 4
184		302
…		…
203	$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;
204	$d	322	$d
205	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
206	}	324	}
207		325
208	use JSON::Syck (); # TODO# replace by JSON::PC once working
209
210	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
211		327
212	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
213		329
214	=cut
215
216	sub from_json($) {
217	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
218	JSON::Syck::Load $_[0]
219	}
220
221	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
222		331
223	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
224		333
225	=cut	334	=cut
226		335
227	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
228	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	337
229	JSON::Syck::Dump $_[0]	338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
230	}	353	}
231		354
232	=item cf::lock_wait $string	355	=item cf::lock_wait $string
233		356
234	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
235		358
236	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
237		360
238	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
239	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,
240	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
241	returned.	364	returned.
242		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
243	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
244	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
245		371
246	=cut	372	=item $locked = cf::lock_active $string
247		373
248	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
249		379
250	sub lock_wait($) {	380	sub lock_wait($) {
251	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
252
253	# wait for lock, if any
254	while ($LOCK{$key}) {
255	push @{ $LOCK{$key} }, $Coro::current;
256	Coro::schedule;
257	}
258	}	382	}
259		383
260	sub lock_acquire($) {	384	sub lock_acquire($) {
261	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
262		387
263	# wait, to be sure we are not locked	388	sub lock_active($) {
264	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
265
266	$LOCK{$key} = [];
267
268	Coro::guard {
269	# wake up all waiters, to be on the safe side
270	$_->ready for @{ delete $LOCK{$key} };
271	}
272	}	390	}
273		391
274	sub freeze_mainloop {	392	sub freeze_mainloop {
275	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
276		394
277	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
278	$TICK_WATCHER->start;	396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428	our $SLOT_DECAY = 0.9;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435	my $busy;
		436
		437	while () {
		438	next_job:
		439
		440	my $avail = cf::till_tick;
		441
		442	for (0 .. $#SLOT_QUEUE) {
		443	if ($SLOT_QUEUE[$_][0] <= $avail) {
		444	$busy = 0;
		445	my $job = splice @SLOT_QUEUE, $_, 1, ();
		446	$job->[2]->send;
		447	Coro::cede;
		448	goto next_job;
		449	} else {
		450	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		451	}
		452	}
		453
		454	if (@SLOT_QUEUE) {
		455	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		456	push @cf::WAIT_FOR_TICK, $signal;
		457	$signal->wait;
		458	} else {
		459	$busy = 0;
		460	Coro::schedule;
		461	}
279	};	462	}
280	$TICK_WATCHER->stop;	463	};
281	$guard	464
		465	sub get_slot($;$$) {
		466	return if tick_inhibit || $Coro::current == $Coro::main;
		467
		468	my ($time, $pri, $name) = @_;
		469
		470	$time = clamp $time, 0.01, $TICK * .6;
		471
		472	my $sig = new Coro::Signal;
		473
		474	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		475	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		476	$SLOT_QUEUE->ready;
		477	$sig->wait;
282	}	478	}
283		479
284	=item cf::async { BLOCK }	480	=item cf::async { BLOCK }
285		481
286	Currently the same as Coro::async_pool, meaning you cannot use	482	Currently the same as Coro::async_pool, meaning you cannot use
…		…
291		487
292	BEGIN { *async = \&Coro::async_pool }	488	BEGIN { *async = \&Coro::async_pool }
293		489
294	=item cf::sync_job { BLOCK }	490	=item cf::sync_job { BLOCK }
295		491
296	The design of crossfire+ requires that the main coro ($Coro::main) is	492	The design of Deliantra requires that the main coroutine ($Coro::main)
297	always able to handle events or runnable, as crossfire+ is only partly	493	is always able to handle events or runnable, as Deliantra is only
298	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
299		496
300	If it must be done, put the blocking parts into C<sync_job>. This will run	497	If it must be done, put the blocking parts into C<sync_job>. This will run
301	the given BLOCK in another coroutine while waiting for the result. The	498	the given BLOCK in another coroutine while waiting for the result. The
302	server will be frozen during this time, so the block should either finish	499	server will be frozen during this time, so the block should either finish
303	fast or be very important.	500	fast or be very important.
…		…
306		503
307	sub sync_job(&) {	504	sub sync_job(&) {
308	my ($job) = @_;	505	my ($job) = @_;
309		506
310	if ($Coro::current == $Coro::main) {	507	if ($Coro::current == $Coro::main) {
		508	my $time = EV::time;
		509
311	# this is the main coro, too bad, we have to block	510	# this is the main coro, too bad, we have to block
312	# till the operation succeeds, freezing the server :/	511	# till the operation succeeds, freezing the server :/
313		512
314	# TODO: use suspend/resume instead	513	LOG llevError, Carp::longmess "sync job";#d#
315	# (but this is cancel-safe)	514
316	my $freeze_guard = freeze_mainloop;	515	my $freeze_guard = freeze_mainloop;
317		516
318	my $busy = 1;	517	my $busy = 1;
319	my @res;	518	my @res;
320		519
321	(async {	520	(async {
		521	$Coro::current->desc ("sync job coro");
322	@res = eval { $job->() };	522	@res = eval { $job->() };
323	warn $@ if $@;	523	warn $@ if $@;
324	undef $busy;	524	undef $busy;
325	})->prio (Coro::PRIO_MAX);	525	})->prio (Coro::PRIO_MAX);
326		526
327	while ($busy) {	527	while ($busy) {
328	Coro::cede or Event::one_event;	528	if (Coro::nready) {
		529	Coro::cede_notself;
		530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
329	}	532	}
		533	}
		534
		535	my $time = EV::time - $time;
		536
		537	$TICK_START += $time; # do not account sync jobs to server load
330		538
331	wantarray ? @res : $res[0]	539	wantarray ? @res : $res[0]
332	} else {	540	} else {
333	# we are in another coroutine, how wonderful, everything just works	541	# we are in another coroutine, how wonderful, everything just works
334		542
…		…
354	$EXT_CORO{$coro+0} = $coro;	562	$EXT_CORO{$coro+0} = $coro;
355		563
356	$coro	564	$coro
357	}	565	}
358		566
359	sub write_runtime {	567	=item fork_call { }, $args
360	my $guard = cf::lock_acquire "write_runtime";
361		568
362	my $runtime = cf::localdir . "/runtime";	569	Executes the given code block with the given arguments in a seperate
		570	process, returning the results. Everything must be serialisable with
		571	Coro::Storable. May, of course, block. Note that the executed sub may
		572	never block itself or use any form of event handling.
363		573
364	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	574	=cut
365	or return;
366		575
367	my $value = $cf::RUNTIME + 90 + 10;	576	sub fork_call(&@) {
368	# 10 is the runtime save interval, for a monotonic clock	577	my ($cb, @args) = @_;
369	# 60 allows for the watchdog to kill the server.
370		578
371	(aio_write $fh, 0, (length $value), $value, 0) <= 0	579	# we seemingly have to make a local copy of the whole thing,
372	and return;	580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
373		582
374	# always fsync - this file is important	583	my @res = Coro::Util::fork_eval {
375	aio_fsync $fh	584	reset_signals;
376	and return;	585	&$cb
		586	}, @args;
377		587
378	close $fh	588	wantarray ? @res : $res[-1]
379	or return;	589	}
380		590
381	aio_rename "$runtime~", $runtime	591	=item $coin = coin_from_name $name
382	and return;
383		592
		593	=cut
		594
		595	our %coin_alias = (
		596	"silver" => "silvercoin",
		597	"silvercoin" => "silvercoin",
		598	"silvercoins" => "silvercoin",
		599	"gold" => "goldcoin",
		600	"goldcoin" => "goldcoin",
		601	"goldcoins" => "goldcoin",
		602	"platinum" => "platinacoin",
		603	"platinumcoin" => "platinacoin",
		604	"platinumcoins" => "platinacoin",
		605	"platina" => "platinacoin",
		606	"platinacoin" => "platinacoin",
		607	"platinacoins" => "platinacoin",
		608	"royalty" => "royalty",
		609	"royalties" => "royalty",
		610	);
		611
		612	sub coin_from_name($) {
		613	$coin_alias{$_[0]}
		614	? cf::arch::find $coin_alias{$_[0]}
		615	: undef
		616	}
		617
		618	=item $value = cf::db_get $family => $key
		619
		620	Returns a single value from the environment database.
		621
		622	=item cf::db_put $family => $key => $value
		623
		624	Stores the given C<$value> in the family. It can currently store binary
		625	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		626
		627	=item $db = cf::db_table "name"
		628
		629	Create and/or open a new database table. The string must not be "db" and must be unique
		630	within each server.
		631
		632	=cut
		633
		634	sub db_table($) {
		635	my ($name) = @_;
		636	my $db = BDB::db_create $DB_ENV;
		637
		638	eval {
		639	$db->set_flags (BDB::CHKSUM);
		640
		641	utf8::encode $name;
		642	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		643	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		644	cf::cleanup "db_open(db): $!" if $!;
		645	};
		646	cf::cleanup "db_open(db): $@" if $@;
		647
		648	$db
		649	}
		650
		651	our $DB;
		652
		653	sub db_init {
		654	cf::sync_job {
		655	$DB ||= db_table "db";
		656	};
		657	}
		658
		659	sub db_get($$) {
		660	my $key = "$_[0]/$_[1]";
		661
		662	cf::sync_job {
		663	BDB::db_get $DB, undef, $key, my $data;
		664
		665	$! ? ()
		666	: $data
384	1	667	}
		668	}
		669
		670	sub db_put($$$) {
		671	BDB::dbreq_pri 4;
		672	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		673	}
		674
		675	=item cf::cache $id => [$paths...], $processversion => $process
		676
		677	Generic caching function that returns the value of the resource $id,
		678	caching and regenerating as required.
		679
		680	This function can block.
		681
		682	=cut
		683
		684	sub cache {
		685	my ($id, $src, $processversion, $process) = @_;
		686
		687	my $meta =
		688	join "\x00",
		689	$processversion,
		690	map {
		691	aio_stat $_
		692	and Carp::croak "$_: $!";
		693
		694	($_, (stat _)[7,9])
		695	} @$src;
		696
		697	my $dbmeta = db_get cache => "$id/meta";
		698	if ($dbmeta ne $meta) {
		699	# changed, we may need to process
		700
		701	my @data;
		702	my $md5;
		703
		704	for (0 .. $#$src) {
		705	0 <= aio_load $src->[$_], $data[$_]
		706	or Carp::croak "$src->[$_]: $!";
		707	}
		708
		709	# if processing is expensive, check
		710	# checksum first
		711	if (1) {
		712	$md5 =
		713	join "\x00",
		714	$processversion,
		715	map {
		716	cf::cede_to_tick;
		717	($src->[$_], Digest::MD5::md5_hex $data[$_])
		718	} 0.. $#$src;
		719
		720
		721	my $dbmd5 = db_get cache => "$id/md5";
		722	if ($dbmd5 eq $md5) {
		723	db_put cache => "$id/meta", $meta;
		724
		725	return db_get cache => "$id/data";
		726	}
		727	}
		728
		729	my $t1 = Time::HiRes::time;
		730	my $data = $process->(\@data);
		731	my $t2 = Time::HiRes::time;
		732
		733	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		734
		735	db_put cache => "$id/data", $data;
		736	db_put cache => "$id/md5" , $md5;
		737	db_put cache => "$id/meta", $meta;
		738
		739	return $data;
		740	}
		741
		742	db_get cache => "$id/data"
		743	}
		744
		745	=item cf::datalog type => key => value, ...
		746
		747	Log a datalog packet of the given type with the given key-value pairs.
		748
		749	=cut
		750
		751	sub datalog($@) {
		752	my ($type, %kv) = @_;
		753	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
385	}	754	}
386		755
387	=back	756	=back
388		757
389	=cut	758	=cut
390		759
391	#############################################################################	760	#############################################################################
392		761
393	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
394		763
395	Many objects in crossfire are so-called attachable objects. That means you can	764	Many objects in deliantra are so-called attachable objects. That means you can
396	attach callbacks/event handlers (a collection of which is called an "attachment")	765	attach callbacks/event handlers (a collection of which is called an "attachment")
397	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
398		767
399	In the following description, CLASS can be any of C<global>, C<object>	768	In the following description, CLASS can be any of C<global>, C<object>
400	C<player>, C<client> or C<map> (i.e. the attachable objects in	769	C<player>, C<client> or C<map> (i.e. the attachable objects in
401	crossfire+).	770	Deliantra).
402		771
403	=over 4	772	=over 4
404		773
405	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
406		775
…		…
450	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
451		820
452	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
453	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
454		823
455	Some classes such as crossfire maps and objects can specify attachments	824	Some classes such as deliantra maps and objects can specify attachments
456	that are attached at load/instantiate time, thus the need for a name.	825	that are attached at load/instantiate time, thus the need for a name.
457		826
458	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
459		828
460	=over 4	829	=over 4
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	938	$registry = $CB_TYPE[$object_type] ||= [];
570		939
571	} elsif ($type eq "subtype") {	940	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	941	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	942	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	943	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		944
576	} elsif ($type eq "package") {	945	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	946	my $pkg = shift @arg;
578		947
579	while (my ($name, $id) = each %cb_id) {	948	while (my ($name, $id) = each %cb_id) {
…		…
608	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
609	}	978	}
610		979
611	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
612	} else {	981	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
614	}	983	}
615		984
616	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
617	}	986	}
618		987
…		…
620	if (ref $_[0]) {	989	if (ref $_[0]) {
621	_object_attach @_;	990	_object_attach @_;
622	} else {	991	} else {
623	_attach shift->_attach_registry, @_;	992	_attach shift->_attach_registry, @_;
624	}	993	}
		994	_recalc_want;
625	};	995	};
626		996
627	# all those should be optimised	997	# all those should be optimised
628	sub cf::attachable::detach {	998	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	999	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	1002	delete $obj->{_attachment}{$name};
633	reattach ($obj);	1003	reattach ($obj);
634	} else {	1004	} else {
635	Carp::croak "cannot, currently, detach class attachments";	1005	Carp::croak "cannot, currently, detach class attachments";
636	}	1006	}
		1007	_recalc_want;
637	};	1008	};
638		1009
639	sub cf::attachable::attached {	1010	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	1011	my ($obj, $name) = @_;
641		1012
…		…
656	";	1027	";
657	die if $@;	1028	die if $@;
658	}	1029	}
659		1030
660	our $override;	1031	our $override;
661	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1032	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
662		1033
663	sub override {	1034	sub override {
664	$override = 1;	1035	$override = 1;
665	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
666	}	1037	}
667		1038
668	sub do_invoke {	1039	sub do_invoke {
669	my $event = shift;	1040	my $event = shift;
670	my $callbacks = shift;	1041	my $callbacks = shift;
671		1042
672	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
673		1044
674	local $override;	1045	local $override;
675		1046
676	for (@$callbacks) {	1047	for (@$callbacks) {
677	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
686	}	1057	}
687		1058
688	0	1059	0
689	}	1060	}
690		1061
691	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
692		1063
693	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
694		1065
695	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
696		1067
697	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1068	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
698	removed in future versions), and there is no public API to access override	1069	removed in future versions), and there is no public API to access override
699	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
700		1071
701	=back	1072	=back
702		1073
703	=cut	1074	=cut
704		1075
705	#############################################################################	1076	#############################################################################
706	# object support	1077	# object support
		1078
		1079	sub _object_equal($$);
		1080	sub _object_equal($$) {
		1081	my ($a, $b) = @_;
		1082
		1083	return 0 unless (ref $a) eq (ref $b);
		1084
		1085	if ("HASH" eq ref $a) {
		1086	my @ka = keys %$a;
		1087	my @kb = keys %$b;
		1088
		1089	return 0 if @ka != @kb;
		1090
		1091	for (0 .. $#ka) {
		1092	return 0 unless $ka[$_] eq $kb[$_];
		1093	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1094	}
		1095
		1096	} elsif ("ARRAY" eq ref $a) {
		1097
		1098	return 0 if @$a != @$b;
		1099
		1100	for (0 .. $#$a) {
		1101	return 0 unless _object_equal $a->[$_], $b->[$_];
		1102	}
		1103
		1104	} elsif ($a ne $b) {
		1105	return 0;
		1106	}
		1107
		1108	1
		1109	}
		1110
		1111	our $SLOW_MERGES;#d#
		1112	sub _can_merge {
		1113	my ($ob1, $ob2) = @_;
		1114
		1115	++$SLOW_MERGES;#d#
		1116
		1117	# we do the slow way here
		1118	return _object_equal $ob1, $ob2
		1119	}
707		1120
708	sub reattach {	1121	sub reattach {
709	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
710	my ($obj) = @_;	1123	my ($obj) = @_;
711		1124
		1125	# no longer needed after getting rid of delete_package?
712	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1126	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
713		1127
714	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
715		1129
716	@$registry = ();	1130	@$registry = ();
717		1131
…		…
732	cf::attachable->attach (	1146	cf::attachable->attach (
733	prio => -1000000,	1147	prio => -1000000,
734	on_instantiate => sub {	1148	on_instantiate => sub {
735	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
736		1150
737	$data = from_json $data;	1151	$data = decode_json $data;
738		1152
739	for (@$data) {	1153	for (@$data) {
740	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
741		1155
742	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
758	sub object_freezer_save {	1172	sub object_freezer_save {
759	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
760		1174
761	sync_job {	1175	sync_job {
762	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
763	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
764	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
765		1180
766	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
767	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
768	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
769	aio_fsync $fh if $cf::USE_FSYNC;	1184	if ($cf::USE_FSYNC) {
		1185	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1186	aio_fsync $fh;
		1187	}
770	close $fh;	1188	aio_close $fh;
771		1189
772	if (@$objs) {	1190	if (@$objs) {
773	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1191	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
774	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
775	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
776	aio_write $fh, 0, (length $data), $data, 0;	1194	aio_write $fh, 0, (length $data), $data, 0;
777	aio_fsync $fh if $cf::USE_FSYNC;	1195	if ($cf::USE_FSYNC) {
		1196	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1197	aio_fsync $fh;
		1198	}
778	close $fh;	1199	aio_close $fh;
779	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
780	}	1201	}
781	} else {	1202	} else {
782	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
783	}	1204	}
784		1205
785	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
786	} else {	1210	} else {
787	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
788	}	1212	}
789	} else {	1213	} else {
790	aio_unlink $filename;	1214	aio_unlink $filename;
791	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
792	}	1216	}
793	}	1217	};
794	}	1218	}
795		1219
796	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
797	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
798		1222
…		…
810	or return;	1234	or return;
811		1235
812	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
813	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
814	or return;	1238	or return;
		1239
815	$av = eval { (Storable::thaw $av)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
816	}	1242	}
817		1243
		1244	utf8::decode (my $decname = $filename);
818	warn sprintf "loading %s (%d)\n",	1245	warn sprintf "loading %s (%d,%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1246	$decname, length $data, scalar @{$av || []};
		1247
820	return ($data, $av);	1248	($data, $av)
821	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
822		1256
823	#############################################################################	1257	#############################################################################
824	# command handling &c	1258	# command handling &c
825		1259
826	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1274	}
841		1275
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1277
844	Register a callbackf ro execution when the client sends an extcmd packet.	1278	Register a callback for execution when the client sends an (synchronous)
		1279	extcmd packet. Ext commands will be processed in the order they are
		1280	received by the server, like other user commands. The first argument is
		1281	the logged-in player. Ext commands can only be processed after a player
		1282	has logged in successfully.
845		1283
846	If the callback returns something, it is sent back as if reply was being	1284	If the callback returns something, it is sent back as if reply was being
847	called.	1285	called.
848		1286
		1287	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1288
		1289	Register a callback for execution when the client sends an (asynchronous)
		1290	exticmd packet. Exti commands are processed by the server as soon as they
		1291	are received, i.e. out of order w.r.t. other commands. The first argument
		1292	is a client socket. Exti commands can be received anytime, even before
		1293	log-in.
		1294
		1295	If the callback returns something, it is sent back as if reply was being
		1296	called.
		1297
849	=cut	1298	=cut
850		1299
851	sub register_extcmd {	1300	sub register_extcmd {
852	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
853		1302
854	$EXTCMD{$name} = $cb;	1303	$EXTCMD{$name} = $cb;
855	}	1304	}
856		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
		1313
857	cf::player->attach (	1314	cf::player->attach (
858	on_command => sub {	1315	on_unknown_command => sub {
859	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
860		1317
861	my $cb = $COMMAND{$name}	1318	my $cb = $COMMAND{$name}
862	or return;	1319	or return;
863		1320
…		…
868	cf::override;	1325	cf::override;
869	},	1326	},
870	on_extcmd => sub {	1327	on_extcmd => sub {
871	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
872		1329
873	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
874		1331
875	if (ref $msg) {	1332	if (ref $msg) {
		1333	my ($type, $reply, @payload) =
		1334	"ARRAY" eq ref $msg
		1335	? @$msg
		1336	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1337
		1338	my @reply;
		1339
876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
877	if (my %reply = $cb->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
878	$pl->ext_reply ($msg->{msgid}, %reply);
879	}
880	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
881	} else {	1347	} else {
882	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
883	}	1349	}
884		1350
885	cf::override;	1351	cf::override;
886	},	1352	},
887	);	1353	);
888		1354
		1355	# "readahead" all extensions
889	sub load_extension {	1356	sub cache_extensions {
890	my ($path) = @_;	1357	my $grp = IO::AIO::aio_group;
891		1358
892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
893	my $base = $1;	1360	for (grep /\.ext$/, @{$_[0]}) {
894	my $pkg = $1;	1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
895	$pkg =~ s/[^[:word:]]/_/g;
896	$pkg = "ext::$pkg";
897
898	warn "... loading '$path' into '$pkg'\n";
899
900	open my $fh, "<:utf8", $path
901	or die "$path: $!";
902
903	my $source =
904	"package $pkg; use strict; use utf8;\n"
905	. "#line 1 \"$path\"\n{\n"
906	. (do { local $/; <$fh> })
907	. "\n};\n1";
908
909	unless (eval $source) {
910	my $msg = $@ ? "$path: $@\n"
911	: "extension disabled.\n";
912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
913	warn $@;
914	warn "mandatory extension failed to load, exiting.\n";
915	exit 1;
916	}	1362	}
917	die $@;
918	}	1363	};
919		1364
920	push @EXTS, $pkg;	1365	$grp
921	}	1366	}
922		1367
923	sub load_extensions {	1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
924	for my $ext (<$LIBDIR/*.ext>) {	1372	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1373	next unless -r $path;
926	eval {	1374
927	load_extension $ext;	1375	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1376	my $base = $1;
		1377	my $pkg = $1;
		1378	$pkg =~ s/[^[:word:]]/_/g;
		1379	$pkg = "ext::$pkg";
		1380
		1381	open my $fh, "<:utf8", $path
		1382	or die "$path: $!";
		1383
		1384	my $source = do { local $/; <$fh> };
		1385
		1386	my %ext = (
		1387	path => $path,
		1388	base => $base,
		1389	pkg => $pkg,
		1390	);
		1391
		1392	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1393	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1394
		1395	$ext{source} =
		1396	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1397	. "#line 1 \"$path\"\n{\n"
		1398	. $source
		1399	. "\n};\n1";
		1400
		1401	$todo{$base} = \%ext;
		1402	}
		1403
		1404	my $pass = 0;
		1405	my %done;
		1406	while (%todo) {
		1407	my $progress;
		1408
		1409	++$pass;
		1410
		1411	ext:
		1412	while (my ($k, $v) = each %todo) {
		1413	for (split /,\s*/, $v->{meta}{depends}) {
		1414	next ext
		1415	unless exists $done{$_};
		1416	}
		1417
		1418	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1419
		1420	my $active = eval $v->{source};
		1421
		1422	if (length $@) {
		1423	warn "$v->{path}: $@\n";
		1424
		1425	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1426	if exists $v->{meta}{mandatory};
		1427	} else {
		1428	$done{$k} = delete $todo{$k};
		1429	push @EXTS, $v->{pkg};
		1430	$progress = 1;
		1431
		1432	warn "$v->{base}: extension inactive.\n"
		1433	unless $active;
		1434	}
928	1	1435	}
929	} or warn "$ext not loaded: $@";	1436
		1437	unless ($progress) {
		1438	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1439
		1440	while (my ($k, $v) = each %todo) {
		1441	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1442	if exists $v->{meta}{mandatory};
		1443	}
		1444	}
		1445	}
930	}	1446	};
931	}	1447	}
932		1448
933	#############################################################################	1449	#############################################################################
934		1450
		1451	=back
		1452
935	=head2 CORE EXTENSIONS	1453	=head2 CORE EXTENSIONS
936		1454
937	Functions and methods that extend core crossfire objects.	1455	Functions and methods that extend core deliantra objects.
938		1456
939	=cut	1457	=cut
940		1458
941	package cf::player;	1459	package cf::player;
942		1460
…		…
944		1462
945	=head3 cf::player	1463	=head3 cf::player
946		1464
947	=over 4	1465	=over 4
948		1466
		1467	=item cf::player::num_playing
		1468
		1469	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1470
		1471	=cut
		1472
		1473	sub num_playing {
		1474	scalar grep
		1475	$_->ob->map
		1476	&& !$_->hidden
		1477	&& !$_->ob->flag (cf::FLAG_WIZ),
		1478	cf::player::list
		1479	}
		1480
949	=item cf::player::find $login	1481	=item cf::player::find $login
950		1482
951	Returns the given player object, loading it if necessary (might block).	1483	Returns the given player object, loading it if necessary (might block).
952		1484
953	=cut	1485	=cut
954		1486
955	sub playerdir($) {	1487	sub playerdir($) {
956	cf::localdir	1488	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1489	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1490	}
962		1491
963	sub path($) {	1492	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1493	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
965		1494
966	(playerdir $login) . "/$login.pl"	1495	(playerdir $login) . "/playerdata"
967	}	1496	}
968		1497
969	sub find_active($) {	1498	sub find_active($) {
970	$cf::PLAYER{$_[0]}	1499	$cf::PLAYER{$_[0]}
971	and $cf::PLAYER{$_[0]}->active	1500	and $cf::PLAYER{$_[0]}->active
…		…
974		1503
975	sub exists($) {	1504	sub exists($) {
976	my ($login) = @_;	1505	my ($login) = @_;
977		1506
978	$cf::PLAYER{$login}	1507	$cf::PLAYER{$login}
979	or cf::sync_job { !aio_stat path $login }	1508	or !aio_stat path $login
980	}	1509	}
981		1510
982	sub find($) {	1511	sub find($) {
983	return $cf::PLAYER{$_[0]} || do {	1512	return $cf::PLAYER{$_[0]} || do {
984	my $login = $_[0];	1513	my $login = $_[0];
985		1514
986	my $guard = cf::lock_acquire "user_find:$login";	1515	my $guard = cf::lock_acquire "user_find:$login";
987		1516
988	$cf::PLAYER{$_[0]} || do {	1517	$cf::PLAYER{$_[0]} || do {
989	my $pl = load_pl path $login	1518	# rename old playerfiles to new ones
		1519	#TODO: remove when no longer required
		1520	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1521	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1522	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1523	aio_unlink +(playerdir $login) . "/$login.pl";
		1524
		1525	my $f = new_from_file cf::object::thawer path $login
990	or return;	1526	or return;
		1527
		1528	my $pl = cf::player::load_pl $f
		1529	or return;
		1530
		1531	local $cf::PLAYER_LOADING{$login} = $pl;
		1532	$f->resolve_delayed_derefs;
991	$cf::PLAYER{$login} = $pl	1533	$cf::PLAYER{$login} = $pl
992	}	1534	}
993	}	1535	}
994	}	1536	}
		1537
		1538	cf::player->attach (
		1539	on_load => sub {
		1540	my ($pl, $path) = @_;
		1541
		1542	# restore slots saved in save, below
		1543	my $slots = delete $pl->{_slots};
		1544
		1545	$pl->ob->current_weapon ($slots->[0]);
		1546	$pl->combat_ob ($slots->[1]);
		1547	$pl->ranged_ob ($slots->[2]);
		1548	},
		1549	);
995		1550
996	sub save($) {	1551	sub save($) {
997	my ($pl) = @_;	1552	my ($pl) = @_;
998		1553
999	return if $pl->{deny_save};	1554	return if $pl->{deny_save};
…		…
1004	return if $pl->{deny_save};	1559	return if $pl->{deny_save};
1005		1560
1006	aio_mkdir playerdir $pl, 0770;	1561	aio_mkdir playerdir $pl, 0770;
1007	$pl->{last_save} = $cf::RUNTIME;	1562	$pl->{last_save} = $cf::RUNTIME;
1008		1563
		1564	cf::get_slot 0.01;
		1565
		1566	# save slots, to be restored later
		1567	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1568
1009	$pl->save_pl ($path);	1569	$pl->save_pl ($path);
1010	Coro::cede;	1570	cf::cede_to_tick;
1011	}	1571	}
1012		1572
1013	sub new($) {	1573	sub new($) {
1014	my ($login) = @_;	1574	my ($login) = @_;
1015		1575
…		…
1021	$cf::PLAYER{$login} = $self;	1581	$cf::PLAYER{$login} = $self;
1022		1582
1023	$self	1583	$self
1024	}	1584	}
1025		1585
		1586	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1587
		1588	=cut
		1589
		1590	sub send_msg {
		1591	my $ns = shift->ns
		1592	or return;
		1593	$ns->send_msg (@_);
		1594	}
		1595
1026	=item $pl->quit_character	1596	=item $pl->quit_character
1027		1597
1028	Nukes the player without looking back. If logged in, the connection will	1598	Nukes the player without looking back. If logged in, the connection will
1029	be destroyed. May block for a long time.	1599	be destroyed. May block for a long time.
1030		1600
…		…
1034	my ($pl) = @_;	1604	my ($pl) = @_;
1035		1605
1036	my $name = $pl->ob->name;	1606	my $name = $pl->ob->name;
1037		1607
1038	$pl->{deny_save} = 1;	1608	$pl->{deny_save} = 1;
1039	$pl->password ("*"); # this should lock out the player until we nuked the dir	1609	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1040		1610
1041	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1611	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1042	$pl->deactivate;	1612	$pl->deactivate;
		1613	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1614	$pl->ob->check_score;
1043	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1615	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1044	$pl->ns->destroy if $pl->ns;	1616	$pl->ns->destroy if $pl->ns;
1045		1617
1046	my $path = playerdir $pl;	1618	my $path = playerdir $pl;
1047	my $temp = "$path~$cf::RUNTIME~deleting~";	1619	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1077	while and may block, so not sync_job-capable, ever.	1649	while and may block, so not sync_job-capable, ever.
1078		1650
1079	=cut	1651	=cut
1080		1652
1081	sub list_logins {	1653	sub list_logins {
1082	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1654	my $dirs = aio_readdir $PLAYERDIR
1083	or return [];	1655	or return [];
1084		1656
1085	my @logins;	1657	my @logins;
1086		1658
1087	for my $login (@$dirs) {	1659	for my $login (@$dirs) {
		1660	my $path = path $login;
		1661
		1662	# a .pst is a dead give-away for a valid player
		1663	# if no pst file found, open and chekc for blocked users
		1664	if (aio_stat "$path.pst") {
1088	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1665	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1089	aio_read $fh, 0, 512, my $buf, 0 or next;	1666	aio_read $fh, 0, 512, my $buf, 0 or next;
1090	$buf !~ /^password -------------$/m or next; # official not-valid tag	1667	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1668	}
1091		1669
1092	utf8::decode $login;	1670	utf8::decode $login;
1093	push @logins, $login;	1671	push @logins, $login;
1094	}	1672	}
1095		1673
…		…
1122	}	1700	}
1123		1701
1124	\@paths	1702	\@paths
1125	}	1703	}
1126		1704
		1705	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1706
		1707	Expand deliantra pod fragments into protocol xml.
		1708
1127	=item $player->ext_reply ($msgid, $msgtype, %msg)	1709	=item $player->ext_reply ($msgid, @msg)
1128		1710
1129	Sends an ext reply to the player.	1711	Sends an ext reply to the player.
1130		1712
1131	=cut	1713	=cut
1132		1714
1133	sub ext_reply($$$%) {	1715	sub ext_reply($$@) {
1134	my ($self, $id, %msg) = @_;	1716	my ($self, $id, @msg) = @_;
1135		1717
1136	$msg{msgid} = $id;	1718	$self->ns->ext_reply ($id, @msg)
1137
1138	$self->send ("ext " . cf::to_json \%msg);
1139	}	1719	}
1140		1720
1141	package cf;	1721	=item $player->ext_msg ($type, @msg)
		1722
		1723	Sends an ext event to the client.
		1724
		1725	=cut
		1726
		1727	sub ext_msg($$@) {
		1728	my ($self, $type, @msg) = @_;
		1729
		1730	$self->ns->ext_msg ($type, @msg);
		1731	}
		1732
		1733	=head3 cf::region
		1734
		1735	=over 4
		1736
		1737	=cut
		1738
		1739	package cf::region;
		1740
		1741	=item cf::region::find_by_path $path
		1742
		1743	Tries to decuce the likely region for a map knowing only its path.
		1744
		1745	=cut
		1746
		1747	sub find_by_path($) {
		1748	my ($path) = @_;
		1749
		1750	my ($match, $specificity);
		1751
		1752	for my $region (list) {
		1753	if ($region->{match} && $path =~ $region->{match}) {
		1754	($match, $specificity) = ($region, $region->specificity)
		1755	if $region->specificity > $specificity;
		1756	}
		1757	}
		1758
		1759	$match
		1760	}
1142		1761
1143	=back	1762	=back
1144
1145		1763
1146	=head3 cf::map	1764	=head3 cf::map
1147		1765
1148	=over 4	1766	=over 4
1149		1767
…		…
1161	our $MAX_RESET = 3600;	1779	our $MAX_RESET = 3600;
1162	our $DEFAULT_RESET = 3000;	1780	our $DEFAULT_RESET = 3000;
1163		1781
1164	sub generate_random_map {	1782	sub generate_random_map {
1165	my ($self, $rmp) = @_;	1783	my ($self, $rmp) = @_;
		1784
		1785	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1786
1166	# mit "rum" bekleckern, nicht	1787	# mit "rum" bekleckern, nicht
1167	$self->_create_random_map (	1788	$self->_create_random_map (
1168	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1789	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1169	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1790	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1170	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1791	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1171	$rmp->{exit_on_final_map},	1792	$rmp->{exit_on_final_map},
1172	$rmp->{xsize}, $rmp->{ysize},	1793	$rmp->{xsize}, $rmp->{ysize},
1173	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1794	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1174	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1795	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1204	my ($self, $merge) = @_;	1825	my ($self, $merge) = @_;
1205		1826
1206	# we have to keep some variables in memory intact	1827	# we have to keep some variables in memory intact
1207	local $self->{path};	1828	local $self->{path};
1208	local $self->{load_path};	1829	local $self->{load_path};
1209	local $self->{deny_save};
1210	local $self->{deny_reset};
1211		1830
1212	$self->SUPER::thawer_merge ($merge);	1831	$self->SUPER::thawer_merge ($merge);
1213	}	1832	}
1214		1833
1215	sub normalise {	1834	sub normalise {
…		…
1262	$self->init; # pass $1 etc.	1881	$self->init; # pass $1 etc.
1263	return $self;	1882	return $self;
1264	}	1883	}
1265	}	1884	}
1266		1885
1267	Carp::carp "unable to resolve path '$path' (base '$base').";	1886	Carp::cluck "unable to resolve path '$path' (base '$base').";
1268	()	1887	()
1269	}	1888	}
1270		1889
1271	sub init {	1890	sub init {
1272	my ($self) = @_;	1891	my ($self) = @_;
…		…
1287		1906
1288	# the original (read-only) location	1907	# the original (read-only) location
1289	sub load_path {	1908	sub load_path {
1290	my ($self) = @_;	1909	my ($self) = @_;
1291		1910
1292	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1911	"$MAPDIR/$self->{path}.map"
1293	}	1912	}
1294		1913
1295	# the temporary/swap location	1914	# the temporary/swap location
1296	sub save_path {	1915	sub save_path {
1297	my ($self) = @_;	1916	my ($self) = @_;
1298		1917
1299	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1918	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1300	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1919	"$TMPDIR/$path.map"
1301	}	1920	}
1302		1921
1303	# the unique path, undef == no special unique path	1922	# the unique path, undef == no special unique path
1304	sub uniq_path {	1923	sub uniq_path {
1305	my ($self) = @_;	1924	my ($self) = @_;
1306		1925
1307	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1926	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1308	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1927	"$UNIQUEDIR/$path"
1309	}	1928	}
1310		1929
1311	# and all this just because we cannot iterate over	1930	sub decay_objects {
1312	# all maps in C++...
1313	sub change_all_map_light {
1314	my ($change) = @_;	1931	my ($self) = @_;
1315		1932
1316	$_->change_map_light ($change)	1933	return if $self->{deny_reset};
1317	for grep $_->outdoor, values %cf::MAP;	1934
		1935	$self->do_decay_objects;
1318	}	1936	}
1319		1937
1320	sub unlink_save {	1938	sub unlink_save {
1321	my ($self) = @_;	1939	my ($self) = @_;
1322		1940
…		…
1327		1945
1328	sub load_header_from($) {	1946	sub load_header_from($) {
1329	my ($self, $path) = @_;	1947	my ($self, $path) = @_;
1330		1948
1331	utf8::encode $path;	1949	utf8::encode $path;
1332	#aio_open $path, O_RDONLY, 0	1950	my $f = new_from_file cf::object::thawer $path
1333	# or return;
1334
1335	$self->_load_header ($path)
1336	or return;	1951	or return;
		1952
		1953	$self->_load_header ($f)
		1954	or return;
		1955
		1956	local $MAP_LOADING{$self->{path}} = $self;
		1957	$f->resolve_delayed_derefs;
1337		1958
1338	$self->{load_path} = $path;	1959	$self->{load_path} = $path;
1339		1960
1340	1	1961	1
1341	}	1962	}
…		…
1380	$self->load_header_orig	2001	$self->load_header_orig
1381	or return;	2002	or return;
1382	$self->prepare_orig;	2003	$self->prepare_orig;
1383	}	2004	}
1384		2005
		2006	$self->{deny_reset} = 1
		2007	if $self->no_reset;
		2008
		2009	$self->default_region (cf::region::find_by_path $self->{path})
		2010	unless $self->default_region;
		2011
1385	1	2012	1
1386	}	2013	}
1387		2014
1388	sub find;	2015	sub find;
1389	sub find {	2016	sub find {
1390	my ($path, $origin) = @_;	2017	my ($path, $origin) = @_;
1391		2018
1392	$path = normalise $path, $origin && $origin->path;	2019	$path = normalise $path, $origin && $origin->path;
1393		2020
		2021	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1394	cf::lock_wait "map_find:$path";	2022	my $guard2 = cf::lock_acquire "map_find:$path";
1395		2023
1396	$cf::MAP{$path} || do {	2024	$cf::MAP{$path} || do {
1397	my $guard = cf::lock_acquire "map_find:$path";
1398	my $map = new_from_path cf::map $path	2025	my $map = new_from_path cf::map $path
1399	or return;	2026	or return;
1400		2027
1401	$map->{last_save} = $cf::RUNTIME;	2028	$map->{last_save} = $cf::RUNTIME;
1402		2029
1403	$map->load_header	2030	$map->load_header
1404	or return;	2031	or return;
1405		2032
1406	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2033	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1407	# doing this can freeze the server in a sync job, obviously	2034	# doing this can freeze the server in a sync job, obviously
1408	#$cf::WAIT_FOR_TICK->wait;	2035	#$cf::WAIT_FOR_TICK->wait;
		2036	undef $guard2;
		2037	undef $guard1;
1409	$map->reset;	2038	$map->reset;
1410	undef $guard;
1411	return find $path;	2039	return find $path;
1412	}	2040	}
1413		2041
1414	$cf::MAP{$path} = $map	2042	$cf::MAP{$path} = $map
1415	}	2043	}
1416	}	2044	}
1417		2045
1418	sub pre_load { }	2046	sub pre_load { }
1419	sub post_load { }	2047	#sub post_load { } # XS
1420		2048
1421	sub load {	2049	sub load {
1422	my ($self) = @_;	2050	my ($self) = @_;
1423		2051
1424	local $self->{deny_reset} = 1; # loading can take a long time	2052	local $self->{deny_reset} = 1; # loading can take a long time
1425		2053
1426	my $path = $self->{path};	2054	my $path = $self->{path};
		2055
		2056	{
1427	my $guard = cf::lock_acquire "map_load:$path";	2057	my $guard = cf::lock_acquire "map_data:$path";
1428		2058
		2059	return unless $self->valid;
1429	return if $self->in_memory != cf::MAP_SWAPPED;	2060	return unless $self->in_memory == cf::MAP_SWAPPED;
1430		2061
1431	$self->in_memory (cf::MAP_LOADING);	2062	$self->in_memory (cf::MAP_LOADING);
1432		2063
1433	$self->alloc;	2064	$self->alloc;
1434		2065
1435	$self->pre_load;	2066	$self->pre_load;
		2067	cf::cede_to_tick;
1436		2068
1437	$self->_load_objects ($self->{load_path}, 1)	2069	my $f = new_from_file cf::object::thawer $self->{load_path};
		2070	$f->skip_block;
		2071	$self->_load_objects ($f)
1438	or return;	2072	or return;
1439		2073
1440	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2074	$self->post_load_original
1441	if delete $self->{load_original};	2075	if delete $self->{load_original};
1442		2076
1443	if (my $uniq = $self->uniq_path) {	2077	if (my $uniq = $self->uniq_path) {
1444	utf8::encode $uniq;	2078	utf8::encode $uniq;
1445	if (aio_open $uniq, O_RDONLY, 0) {	2079	unless (aio_stat $uniq) {
		2080	if (my $f = new_from_file cf::object::thawer $uniq) {
1446	$self->clear_unique_items;	2081	$self->clear_unique_items;
1447	$self->_load_objects ($uniq, 0);	2082	$self->_load_objects ($f);
		2083	$f->resolve_delayed_derefs;
		2084	}
1448	}	2085	}
1449	}	2086	}
1450		2087
1451	Coro::cede;	2088	$f->resolve_delayed_derefs;
1452		2089
		2090	cf::cede_to_tick;
1453	# now do the right thing for maps	2091	# now do the right thing for maps
1454	$self->link_multipart_objects;	2092	$self->link_multipart_objects;
1455
1456	unless ($self->{deny_activate}) {
1457	$self->decay_objects;
1458	$self->fix_auto_apply;
1459	$self->update_buttons;
1460	Coro::cede;
1461	$self->set_darkness_map;
1462	$self->difficulty ($self->estimate_difficulty)	2093	$self->difficulty ($self->estimate_difficulty)
1463	unless $self->difficulty;	2094	unless $self->difficulty;
1464	Coro::cede;	2095	cf::cede_to_tick;
		2096
		2097	unless ($self->{deny_activate}) {
		2098	$self->decay_objects;
		2099	$self->fix_auto_apply;
		2100	$self->update_buttons;
		2101	cf::cede_to_tick;
1465	$self->activate;	2102	$self->activate;
		2103	}
		2104
		2105	$self->{last_save} = $cf::RUNTIME;
		2106	$self->last_access ($cf::RUNTIME);
		2107
		2108	$self->in_memory (cf::MAP_ACTIVE);
1466	}	2109	}
1467		2110
1468	$self->post_load;	2111	$self->post_load;
1469
1470	$self->in_memory (cf::MAP_IN_MEMORY);
1471	}	2112	}
1472		2113
		2114	# customize the map for a given player, i.e.
		2115	# return the _real_ map. used by e.g. per-player
		2116	# maps to change the path to ~playername/mappath
1473	sub customise_for {	2117	sub customise_for {
1474	my ($self, $ob) = @_;	2118	my ($self, $ob) = @_;
1475		2119
1476	return find "~" . $ob->name . "/" . $self->{path}	2120	return find "~" . $ob->name . "/" . $self->{path}
1477	if $self->per_player;	2121	if $self->per_player;
1478		2122
		2123	# return find "?party/" . $ob->name . "/" . $self->{path}
		2124	# if $self->per_party;
		2125
1479	$self	2126	$self
1480	}	2127	}
1481		2128
1482	# find and load all maps in the 3x3 area around a map	2129	# find and load all maps in the 3x3 area around a map
1483	sub load_diag {	2130	sub load_neighbours {
1484	my ($map) = @_;	2131	my ($map) = @_;
1485		2132
1486	my @diag; # diagonal neighbours	2133	my @neigh; # diagonal neighbours
1487		2134
1488	for (0 .. 3) {	2135	for (0 .. 3) {
1489	my $neigh = $map->tile_path ($_)	2136	my $neigh = $map->tile_path ($_)
1490	or next;	2137	or next;
1491	$neigh = find $neigh, $map	2138	$neigh = find $neigh, $map
1492	or next;	2139	or next;
1493	$neigh->load;	2140	$neigh->load;
1494		2141
		2142	push @neigh,
1495	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2143	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1496	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2144	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1497	}	2145	}
1498		2146
1499	for (@diag) {	2147	for (grep defined $_->[0], @neigh) {
		2148	my ($path, $origin) = @$_;
1500	my $neigh = find @$_	2149	my $neigh = find $path, $origin
1501	or next;	2150	or next;
1502	$neigh->load;	2151	$neigh->load;
1503	}	2152	}
1504	}	2153	}
1505		2154
…		…
1510	}	2159	}
1511		2160
1512	sub do_load_sync {	2161	sub do_load_sync {
1513	my ($map) = @_;	2162	my ($map) = @_;
1514		2163
		2164	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2165	if $Coro::current == $Coro::main;
		2166
1515	cf::sync_job { $map->load };	2167	cf::sync_job { $map->load };
1516	}	2168	}
1517		2169
1518	our %MAP_PREFETCH;	2170	our %MAP_PREFETCH;
1519	our $MAP_PREFETCHER = undef;	2171	our $MAP_PREFETCHER = undef;
1520		2172
1521	sub find_async {	2173	sub find_async {
1522	my ($path, $origin) = @_;	2174	my ($path, $origin, $load) = @_;
1523		2175
1524	$path = normalise $path, $origin && $origin->{path};	2176	$path = normalise $path, $origin && $origin->{path};
1525		2177
1526	if (my $map = $cf::MAP{$path}) {	2178	if (my $map = $cf::MAP{$path}) {
1527	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2179	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1528	}	2180	}
1529		2181
1530	undef $MAP_PREFETCH{$path};	2182	$MAP_PREFETCH{$path} |= $load;
		2183
1531	$MAP_PREFETCHER ||= cf::async {	2184	$MAP_PREFETCHER ||= cf::async {
		2185	$Coro::current->{desc} = "map prefetcher";
		2186
1532	while (%MAP_PREFETCH) {	2187	while (%MAP_PREFETCH) {
1533	for my $path (keys %MAP_PREFETCH) {	2188	while (my ($k, $v) = each %MAP_PREFETCH) {
1534	my $map = find $path	2189	if (my $map = find $k) {
1535	or next;
1536	$map->load;	2190	$map->load if $v;
		2191	}
1537		2192
1538	delete $MAP_PREFETCH{$path};	2193	delete $MAP_PREFETCH{$k};
1539	}	2194	}
1540	}	2195	}
1541	undef $MAP_PREFETCHER;	2196	undef $MAP_PREFETCHER;
1542	};	2197	};
1543	$MAP_PREFETCHER->prio (6);	2198	$MAP_PREFETCHER->prio (6);
…		…
1546	}	2201	}
1547		2202
1548	sub save {	2203	sub save {
1549	my ($self) = @_;	2204	my ($self) = @_;
1550		2205
1551	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1552		2207
1553	$self->{last_save} = $cf::RUNTIME;	2208	$self->{last_save} = $cf::RUNTIME;
1554		2209
1555	return unless $self->dirty;	2210	return unless $self->dirty;
1556		2211
…		…
1562	return if $self->{deny_save};	2217	return if $self->{deny_save};
1563		2218
1564	local $self->{last_access} = $self->last_access;#d#	2219	local $self->{last_access} = $self->last_access;#d#
1565		2220
1566	cf::async {	2221	cf::async {
		2222	$Coro::current->{desc} = "map player save";
1567	$_->contr->save for $self->players;	2223	$_->contr->save for $self->players;
1568	};	2224	};
		2225
		2226	cf::get_slot 0.02;
1569		2227
1570	if ($uniq) {	2228	if ($uniq) {
1571	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2229	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1572	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2230	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1573	} else {	2231	} else {
…		…
1579	my ($self) = @_;	2237	my ($self) = @_;
1580		2238
1581	# save first because save cedes	2239	# save first because save cedes
1582	$self->save;	2240	$self->save;
1583		2241
1584	my $lock = cf::lock_acquire "map_data:" . $self->path;	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1585		2243
1586	return if $self->players;	2244	return if $self->players;
1587	return if $self->in_memory != cf::MAP_IN_MEMORY;	2245	return if $self->in_memory != cf::MAP_ACTIVE;
1588	return if $self->{deny_save};	2246	return if $self->{deny_save};
1589		2247
		2248	$self->in_memory (cf::MAP_SWAPPED);
		2249
		2250	$self->deactivate;
		2251	$_->clear_links_to ($self) for values %cf::MAP;
1590	$self->clear;	2252	$self->clear;
1591	$self->in_memory (cf::MAP_SWAPPED);
1592	}	2253	}
1593		2254
1594	sub reset_at {	2255	sub reset_at {
1595	my ($self) = @_;	2256	my ($self) = @_;
1596		2257
1597	# TODO: safety, remove and allow resettable per-player maps	2258	# TODO: safety, remove and allow resettable per-player maps
1598	return 1e99 if $self->isa ("ext::map_per_player");#d#
1599	return 1e99 if $self->{deny_reset};	2259	return 1e99 if $self->{deny_reset};
1600		2260
1601	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2261	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1602	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2262	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1603		2263
…		…
1614	my ($self) = @_;	2274	my ($self) = @_;
1615		2275
1616	my $lock = cf::lock_acquire "map_data:$self->{path}";	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1617		2277
1618	return if $self->players;	2278	return if $self->players;
1619	return if $self->isa ("ext::map_per_player");#d#
1620		2279
1621	warn "resetting map ", $self->path;#d#	2280	warn "resetting map ", $self->path, "\n";
1622		2281
1623	$self->in_memory (cf::MAP_SWAPPED);	2282	$self->in_memory (cf::MAP_SWAPPED);
1624		2283
1625	# need to save uniques path	2284	# need to save uniques path
1626	unless ($self->{deny_save}) {	2285	unless ($self->{deny_save}) {
…		…
1630	if $uniq;	2289	if $uniq;
1631	}	2290	}
1632		2291
1633	delete $cf::MAP{$self->path};	2292	delete $cf::MAP{$self->path};
1634		2293
		2294	$self->deactivate;
		2295	$_->clear_links_to ($self) for values %cf::MAP;
1635	$self->clear;	2296	$self->clear;
1636
1637	$_->clear_links_to ($self) for values %cf::MAP;
1638		2297
1639	$self->unlink_save;	2298	$self->unlink_save;
1640	$self->destroy;	2299	$self->destroy;
1641	}	2300	}
1642		2301
1643	my $nuke_counter = "aaaa";	2302	my $nuke_counter = "aaaa";
1644		2303
1645	sub nuke {	2304	sub nuke {
1646	my ($self) = @_;	2305	my ($self) = @_;
1647		2306
		2307	{
		2308	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2309
1648	delete $cf::MAP{$self->path};	2310	delete $cf::MAP{$self->path};
1649		2311
1650	$self->unlink_save;	2312	$self->unlink_save;
1651		2313
1652	bless $self, "cf::map";	2314	bless $self, "cf::map";
1653	delete $self->{deny_reset};	2315	delete $self->{deny_reset};
1654	$self->{deny_save} = 1;	2316	$self->{deny_save} = 1;
1655	$self->reset_timeout (1);	2317	$self->reset_timeout (1);
1656	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2318	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1657		2319
1658	$cf::MAP{$self->path} = $self;	2320	$cf::MAP{$self->path} = $self;
		2321	}
1659		2322
1660	$self->reset; # polite request, might not happen	2323	$self->reset; # polite request, might not happen
		2324	}
		2325
		2326	=item $maps = cf::map::tmp_maps
		2327
		2328	Returns an arrayref with all map paths of currently instantiated and saved
		2329	maps. May block.
		2330
		2331	=cut
		2332
		2333	sub tmp_maps() {
		2334	[
		2335	map {
		2336	utf8::decode $_;
		2337	/\.map$/
		2338	? normalise $_
		2339	: ()
		2340	} @{ aio_readdir $TMPDIR or [] }
		2341	]
		2342	}
		2343
		2344	=item $maps = cf::map::random_maps
		2345
		2346	Returns an arrayref with all map paths of currently instantiated and saved
		2347	random maps. May block.
		2348
		2349	=cut
		2350
		2351	sub random_maps() {
		2352	[
		2353	map {
		2354	utf8::decode $_;
		2355	/\.map$/
		2356	? normalise "?random/$_"
		2357	: ()
		2358	} @{ aio_readdir $RANDOMDIR or [] }
		2359	]
1661	}	2360	}
1662		2361
1663	=item cf::map::unique_maps	2362	=item cf::map::unique_maps
1664		2363
1665	Returns an arrayref of paths of all shared maps that have	2364	Returns an arrayref of paths of all shared maps that have
1666	instantiated unique items. May block.	2365	instantiated unique items. May block.
1667		2366
1668	=cut	2367	=cut
1669		2368
1670	sub unique_maps() {	2369	sub unique_maps() {
1671	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2370	[
1672	or return;	2371	map {
1673
1674	my @paths;
1675
1676	for (@$files) {
1677	utf8::decode $_;	2372	utf8::decode $_;
1678	next if /\.pst$/;	2373	s/\.map$//; # TODO future compatibility hack
1679	next unless /^$PATH_SEP/o;	2374	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1680		2375	? ()
1681	push @paths, cf::map::normalise $_;	2376	: normalise $_
		2377	} @{ aio_readdir $UNIQUEDIR or [] }
1682	}	2378	]
1683
1684	\@paths
1685	}	2379	}
1686		2380
1687	package cf;	2381	=item cf::map::static_maps
		2382
		2383	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2384	file in the shared directory excluding F</styles> and F</editor>). May
		2385	block.
		2386
		2387	=cut
		2388
		2389	sub static_maps() {
		2390	my @dirs = "";
		2391	my @maps;
		2392
		2393	while (@dirs) {
		2394	my $dir = shift @dirs;
		2395
		2396	next if $dir eq "/styles" || $dir eq "/editor";
		2397
		2398	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2399	or return;
		2400
		2401	for (@$files) {
		2402	s/\.map$// or next;
		2403	utf8::decode $_;
		2404	push @maps, "$dir/$_";
		2405	}
		2406
		2407	push @dirs, map "$dir/$_", @$dirs;
		2408	}
		2409
		2410	\@maps
		2411	}
1688		2412
1689	=back	2413	=back
1690		2414
1691	=head3 cf::object	2415	=head3 cf::object
1692		2416
…		…
1696		2420
1697	=over 4	2421	=over 4
1698		2422
1699	=item $ob->inv_recursive	2423	=item $ob->inv_recursive
1700		2424
1701	Returns the inventory of the object _and_ their inventories, recursively.	2425	Returns the inventory of the object I<and> their inventories, recursively,
		2426	but I<not> the object itself.
1702		2427
1703	=cut	2428	=cut
1704		2429
1705	sub inv_recursive_;	2430	sub inv_recursive_;
1706	sub inv_recursive_ {	2431	sub inv_recursive_ {
…		…
1709		2434
1710	sub inv_recursive {	2435	sub inv_recursive {
1711	inv_recursive_ inv $_[0]	2436	inv_recursive_ inv $_[0]
1712	}	2437	}
1713		2438
		2439	=item $ref = $ob->ref
		2440
		2441	Creates and returns a persistent reference to an object that can be stored as a string.
		2442
		2443	=item $ob = cf::object::deref ($refstring)
		2444
		2445	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2446	even if the object actually exists. May block.
		2447
		2448	=cut
		2449
		2450	sub deref {
		2451	my ($ref) = @_;
		2452
		2453	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2454	my ($uuid, $name) = ($1, $2);
		2455	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2456	or return;
		2457	$pl->ob->uuid eq $uuid
		2458	or return;
		2459
		2460	$pl->ob
		2461	} else {
		2462	warn "$ref: cannot resolve object reference\n";
		2463	undef
		2464	}
		2465	}
		2466
1714	package cf;	2467	package cf;
1715		2468
1716	=back	2469	=back
1717		2470
1718	=head3 cf::object::player	2471	=head3 cf::object::player
…		…
1724	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2477	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1725	can be C<undef>. Does the right thing when the player is currently in a	2478	can be C<undef>. Does the right thing when the player is currently in a
1726	dialogue with the given NPC character.	2479	dialogue with the given NPC character.
1727		2480
1728	=cut	2481	=cut
		2482
		2483	our $SAY_CHANNEL = {
		2484	id => "say",
		2485	title => "Map",
		2486	reply => "say ",
		2487	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2488	};
		2489
		2490	our $CHAT_CHANNEL = {
		2491	id => "chat",
		2492	title => "Chat",
		2493	reply => "chat ",
		2494	tooltip => "Player chat and shouts, global to the server.",
		2495	};
1729		2496
1730	# rough implementation of a future "reply" method that works	2497	# rough implementation of a future "reply" method that works
1731	# with dialog boxes.	2498	# with dialog boxes.
1732	#TODO: the first argument must go, split into a $npc->reply_to ( method	2499	#TODO: the first argument must go, split into a $npc->reply_to ( method
1733	sub cf::object::player::reply($$$;$) {	2500	sub cf::object::player::reply($$$;$) {
…		…
1735		2502
1736	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2503	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1737		2504
1738	if ($self->{record_replies}) {	2505	if ($self->{record_replies}) {
1739	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2506	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2507
1740	} else {	2508	} else {
		2509	my $pl = $self->contr;
		2510
		2511	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2512	my $dialog = $pl->{npc_dialog};
		2513	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2514
		2515	} else {
1741	$msg = $npc->name . " says: $msg" if $npc;	2516	$msg = $npc->name . " says: $msg" if $npc;
1742	$self->message ($msg, $flags);	2517	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2518	}
1743	}	2519	}
		2520	}
		2521
		2522	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2523
		2524	=cut
		2525
		2526	sub cf::object::send_msg {
		2527	my $pl = shift->contr
		2528	or return;
		2529	$pl->send_msg (@_);
1744	}	2530	}
1745		2531
1746	=item $player_object->may ("access")	2532	=item $player_object->may ("access")
1747		2533
1748	Returns wether the given player is authorized to access resource "access"	2534	Returns wether the given player is authorized to access resource "access"
…		…
1761		2547
1762	=item $player_object->enter_link	2548	=item $player_object->enter_link
1763		2549
1764	Freezes the player and moves him/her to a special map (C<{link}>).	2550	Freezes the player and moves him/her to a special map (C<{link}>).
1765		2551
1766	The player should be reasonably safe there for short amounts of time. You	2552	The player should be reasonably safe there for short amounts of time (e.g.
1767	I<MUST> call C<leave_link> as soon as possible, though.	2553	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2554	though, as the palyer cannot control the character while it is on the link
		2555	map.
1768		2556
1769	Will never block.	2557	Will never block.
1770		2558
1771	=item $player_object->leave_link ($map, $x, $y)	2559	=item $player_object->leave_link ($map, $x, $y)
1772		2560
…		…
1795	$self->deactivate_recursive;	2583	$self->deactivate_recursive;
1796		2584
1797	return if UNIVERSAL::isa $self->map, "ext::map_link";	2585	return if UNIVERSAL::isa $self->map, "ext::map_link";
1798		2586
1799	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2587	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1800	if $self->map;	2588	if $self->map && $self->map->{path} ne "{link}";
1801		2589
1802	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2590	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1803	}	2591	}
1804		2592
1805	sub cf::object::player::leave_link {	2593	sub cf::object::player::leave_link {
1806	my ($self, $map, $x, $y) = @_;	2594	my ($self, $map, $x, $y) = @_;
		2595
		2596	return unless $self->contr->active;
1807		2597
1808	my $link_pos = delete $self->{_link_pos};	2598	my $link_pos = delete $self->{_link_pos};
1809		2599
1810	unless ($map) {	2600	unless ($map) {
1811	# restore original map position	2601	# restore original map position
…		…
1822	($x, $y) = (-1, -1)	2612	($x, $y) = (-1, -1)
1823	unless (defined $x) && (defined $y);	2613	unless (defined $x) && (defined $y);
1824		2614
1825	# use -1 or undef as default coordinates, not 0, 0	2615	# use -1 or undef as default coordinates, not 0, 0
1826	($x, $y) = ($map->enter_x, $map->enter_y)	2616	($x, $y) = ($map->enter_x, $map->enter_y)
1827	if $x <=0 && $y <= 0;	2617	if $x <= 0 && $y <= 0;
1828		2618
1829	$map->load;	2619	$map->load;
1830	$map->load_diag;	2620	$map->load_neighbours;
1831		2621
1832	return unless $self->contr->active;	2622	return unless $self->contr->active;
1833	$self->activate_recursive;
1834		2623
1835	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2624	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1836	$self->enter_map ($map, $x, $y);	2625	$self->enter_map ($map, $x, $y);
1837	}
1838		2626
1839	cf::player->attach (	2627	# only activate afterwards, to support waiting in hooks
1840	on_logout => sub {	2628	$self->activate_recursive;
1841	my ($pl) = @_;	2629	}
1842		2630
1843	# abort map switching before logout	2631	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1844	if ($pl->ob->{_link_pos}) {
1845	cf::sync_job {
1846	$pl->ob->leave_link
1847	};
1848	}
1849	},
1850	on_login => sub {
1851	my ($pl) = @_;
1852		2632
1853	# try to abort aborted map switching on player login :)	2633	Moves the player to the given map-path and coordinates by first freezing
1854	# should happen only on crashes	2634	her, loading and preparing them map, calling the provided $check callback
1855	if ($pl->ob->{_link_pos}) {	2635	that has to return the map if sucecssful, and then unfreezes the player on
1856	$pl->ob->enter_link;	2636	the new (success) or old (failed) map position. In either case, $done will
1857	(async {	2637	be called at the end of this process.
1858	$pl->ob->reply (undef,
1859	"There was an internal problem at your last logout, "
1860	. "the server will try to bring you to your intended destination in a second.",
1861	cf::NDI_RED);
1862	# we need this sleep as the login has a concurrent enter_exit running
1863	# and this sleep increases chances of the player not ending up in scorn
1864	Coro::Timer::sleep 1;
1865	$pl->ob->leave_link;
1866	})->prio (2);
1867	}
1868	},
1869	);
1870		2638
1871	=item $player_object->goto ($path, $x, $y)	2639	Note that $check will be called with a potentially non-loaded map, so if
		2640	it needs a loaded map it has to call C<< ->load >>.
1872		2641
1873	=cut	2642	=cut
		2643
		2644	our $GOTOGEN;
1874		2645
1875	sub cf::object::player::goto {	2646	sub cf::object::player::goto {
1876	my ($self, $path, $x, $y) = @_;	2647	my ($self, $path, $x, $y, $check, $done) = @_;
		2648
		2649	# do generation counting so two concurrent goto's will be executed in-order
		2650	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1877		2651
1878	$self->enter_link;	2652	$self->enter_link;
1879		2653
1880	(async {	2654	(async {
		2655	$Coro::current->{desc} = "player::goto $path $x $y";
		2656
		2657	# *tag paths override both path and x|y
		2658	if ($path =~ /^\*(.*)$/) {
		2659	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2660	my $ob = $obs[rand @obs];
		2661
		2662	# see if we actually can go there
		2663	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2664	$ob = $obs[rand @obs];
		2665	} else {
		2666	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2667	}
		2668	# else put us there anyways for now #d#
		2669
		2670	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2671	} else {
		2672	($path, $x, $y) = (undef, undef, undef);
		2673	}
		2674	}
		2675
1881	my $map = eval {	2676	my $map = eval {
1882	my $map = cf::map::find $path;	2677	my $map = defined $path ? cf::map::find $path : undef;
		2678
		2679	if ($map) {
1883	$map = $map->customise_for ($self) if $map;	2680	$map = $map->customise_for ($self);
		2681	$map = $check->($map) if $check && $map;
		2682	} else {
		2683	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2684	}
		2685
1884	$map	2686	$map
		2687	};
		2688
		2689	if ($@) {
		2690	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2691	LOG llevError | logBacktrace, Carp::longmess $@;
1885	} or	2692	}
1886	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1887		2693
		2694	if ($gen == $self->{_goto_generation}) {
		2695	delete $self->{_goto_generation};
1888	$self->leave_link ($map, $x, $y);	2696	$self->leave_link ($map, $x, $y);
		2697	}
		2698
		2699	$done->() if $done;
1889	})->prio (1);	2700	})->prio (1);
1890	}	2701	}
1891		2702
1892	=item $player_object->enter_exit ($exit_object)	2703	=item $player_object->enter_exit ($exit_object)
1893		2704
…		…
1913	}	2724	}
1914		2725
1915	sub prepare_random_map {	2726	sub prepare_random_map {
1916	my ($exit) = @_;	2727	my ($exit) = @_;
1917		2728
1918	my $guard = cf::lock_acquire "exit_prepare:$exit";
1919
1920	# all this does is basically replace the /! path by	2729	# all this does is basically replace the /! path by
1921	# a new random map path (?random/...) with a seed	2730	# a new random map path (?random/...) with a seed
1922	# that depends on the exit object	2731	# that depends on the exit object
1923		2732
1924	my $rmp = parse_random_map_params $exit->msg;	2733	my $rmp = parse_random_map_params $exit->msg;
…		…
1926	if ($exit->map) {	2735	if ($exit->map) {
1927	$rmp->{region} = $exit->region->name;	2736	$rmp->{region} = $exit->region->name;
1928	$rmp->{origin_map} = $exit->map->path;	2737	$rmp->{origin_map} = $exit->map->path;
1929	$rmp->{origin_x} = $exit->x;	2738	$rmp->{origin_x} = $exit->x;
1930	$rmp->{origin_y} = $exit->y;	2739	$rmp->{origin_y} = $exit->y;
		2740
		2741	$exit->map->touch;
1931	}	2742	}
1932		2743
1933	$rmp->{random_seed} ||= $exit->random_seed;	2744	$rmp->{random_seed} ||= $exit->random_seed;
1934		2745
1935	my $data = cf::to_json $rmp;	2746	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1936	my $md5 = Digest::MD5::md5_hex $data;	2747	my $md5 = Digest::MD5::md5_hex $data;
1937	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2748	my $meta = "$RANDOMDIR/$md5.meta";
1938		2749
1939	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2750	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1940	aio_write $fh, 0, (length $data), $data, 0;	2751	aio_write $fh, 0, (length $data), $data, 0;
1941	undef $fh;	2752	undef $fh;
1942	aio_rename "$meta~", $meta;	2753	aio_rename "$meta~", $meta;
1943		2754
		2755	my $slaying = "?random/$md5";
		2756
		2757	if ($exit->valid) {
1944	$exit->slaying ("?random/$md5");	2758	$exit->slaying ("?random/$md5");
1945	$exit->msg (undef);	2759	$exit->msg (undef);
		2760	}
1946	}	2761	}
1947	}	2762	}
1948		2763
1949	sub cf::object::player::enter_exit {	2764	sub cf::object::player::enter_exit {
1950	my ($self, $exit) = @_;	2765	my ($self, $exit) = @_;
1951		2766
1952	return unless $self->type == cf::PLAYER;	2767	return unless $self->type == cf::PLAYER;
1953		2768
1954	if ($exit->slaying eq "/!") {
1955	#TODO: this should de-fi-ni-te-ly not be a sync-job
1956	cf::sync_job { prepare_random_map $exit };
1957	}
1958
1959	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1960	my $hp = $exit->stats->hp;
1961	my $sp = $exit->stats->sp;
1962
1963	$self->enter_link;	2769	$self->enter_link;
1964		2770
1965	(async {	2771	(async {
1966	$self->deactivate_recursive; # just to be sure	2772	$Coro::current->{desc} = "enter_exit";
		2773
1967	unless (eval {	2774	unless (eval {
		2775	$self->deactivate_recursive; # just to be sure
		2776
		2777	# random map handling
		2778	{
		2779	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2780
		2781	prepare_random_map $exit
		2782	if $exit->slaying eq "/!";
		2783	}
		2784
		2785	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2786	my $x = $exit->stats->hp;
		2787	my $y = $exit->stats->sp;
		2788
1968	$self->goto ($slaying, $hp, $sp);	2789	$self->goto ($map, $x, $y);
1969		2790
		2791	# if exit is damned, update players death & WoR home-position
		2792	$self->contr->savebed ($map, $x, $y)
		2793	if $exit->flag (cf::FLAG_DAMNED);
		2794
1970	1;	2795	1
1971	}) {	2796	}) {
1972	$self->message ("Something went wrong deep within the crossfire server. "	2797	$self->message ("Something went wrong deep within the deliantra server. "
1973	. "I'll try to bring you back to the map you were before. "	2798	. "I'll try to bring you back to the map you were before. "
1974	. "Please report this to the dungeon master!",	2799	. "Please report this to the dungeon master!",
1975	cf::NDI_UNIQUE | cf::NDI_RED);	2800	cf::NDI_UNIQUE | cf::NDI_RED);
1976		2801
1977	warn "ERROR in enter_exit: $@";	2802	warn "ERROR in enter_exit: $@";
1978	$self->leave_link;	2803	$self->leave_link;
1979	}	2804	}
1980	})->prio (1);	2805	})->prio (1);
…		…
1993		2818
1994	sub cf::client::send_drawinfo {	2819	sub cf::client::send_drawinfo {
1995	my ($self, $text, $flags) = @_;	2820	my ($self, $text, $flags) = @_;
1996		2821
1997	utf8::encode $text;	2822	utf8::encode $text;
1998	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2823	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1999	}	2824	}
2000		2825
		2826	=item $client->send_big_packet ($pkt)
		2827
		2828	Like C<send_packet>, but tries to compress large packets, and fragments
		2829	them as required.
		2830
		2831	=cut
		2832
		2833	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2834
		2835	sub cf::client::send_big_packet {
		2836	my ($self, $pkt) = @_;
		2837
		2838	# try lzf for large packets
		2839	$pkt = "lzf " . Compress::LZF::compress $pkt
		2840	if 1024 <= length $pkt and $self->{can_lzf};
		2841
		2842	# split very large packets
		2843	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2844	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2845	$pkt = "frag";
		2846	}
		2847
		2848	$self->send_packet ($pkt);
		2849	}
		2850
		2851	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2852
		2853	Send a drawinfo or msg packet to the client, formatting the msg for the
		2854	client if neccessary. C<$type> should be a string identifying the type of
		2855	the message, with C<log> being the default. If C<$color> is negative, suppress
		2856	the message unless the client supports the msg packet.
		2857
		2858	=cut
		2859
		2860	# non-persistent channels (usually the info channel)
		2861	our %CHANNEL = (
		2862	"c/motd" => {
		2863	id => "infobox",
		2864	title => "MOTD",
		2865	reply => undef,
		2866	tooltip => "The message of the day",
		2867	},
		2868	"c/identify" => {
		2869	id => "infobox",
		2870	title => "Identify",
		2871	reply => undef,
		2872	tooltip => "Items recently identified",
		2873	},
		2874	"c/examine" => {
		2875	id => "infobox",
		2876	title => "Examine",
		2877	reply => undef,
		2878	tooltip => "Signs and other items you examined",
		2879	},
		2880	"c/shopinfo" => {
		2881	id => "infobox",
		2882	title => "Shop Info",
		2883	reply => undef,
		2884	tooltip => "What your bargaining skill tells you about the shop",
		2885	},
		2886	"c/book" => {
		2887	id => "infobox",
		2888	title => "Book",
		2889	reply => undef,
		2890	tooltip => "The contents of a note or book",
		2891	},
		2892	"c/lookat" => {
		2893	id => "infobox",
		2894	title => "Look",
		2895	reply => undef,
		2896	tooltip => "What you saw there",
		2897	},
		2898	"c/who" => {
		2899	id => "infobox",
		2900	title => "Players",
		2901	reply => undef,
		2902	tooltip => "Shows players who are currently online",
		2903	},
		2904	"c/body" => {
		2905	id => "infobox",
		2906	title => "Body Parts",
		2907	reply => undef,
		2908	tooltip => "Shows which body parts you posess and are available",
		2909	},
		2910	"c/statistics" => {
		2911	id => "infobox",
		2912	title => "Statistics",
		2913	reply => undef,
		2914	tooltip => "Shows your primary statistics",
		2915	},
		2916	"c/skills" => {
		2917	id => "infobox",
		2918	title => "Skills",
		2919	reply => undef,
		2920	tooltip => "Shows your experience per skill and item power",
		2921	},
		2922	"c/shopitems" => {
		2923	id => "infobox",
		2924	title => "Shop Items",
		2925	reply => undef,
		2926	tooltip => "Shows the items currently for sale in this shop",
		2927	},
		2928	"c/resistances" => {
		2929	id => "infobox",
		2930	title => "Resistances",
		2931	reply => undef,
		2932	tooltip => "Shows your resistances",
		2933	},
		2934	"c/pets" => {
		2935	id => "infobox",
		2936	title => "Pets",
		2937	reply => undef,
		2938	tooltip => "Shows information abotu your pets/a specific pet",
		2939	},
		2940	"c/perceiveself" => {
		2941	id => "infobox",
		2942	title => "Perceive Self",
		2943	reply => undef,
		2944	tooltip => "You gained detailed knowledge about yourself",
		2945	},
		2946	"c/uptime" => {
		2947	id => "infobox",
		2948	title => "Uptime",
		2949	reply => undef,
		2950	tooltip => "How long the server has been running since last restart",
		2951	},
		2952	"c/mapinfo" => {
		2953	id => "infobox",
		2954	title => "Map Info",
		2955	reply => undef,
		2956	tooltip => "Information related to the maps",
		2957	},
		2958	"c/party" => {
		2959	id => "party",
		2960	title => "Party",
		2961	reply => "gsay ",
		2962	tooltip => "Messages and chat related to your party",
		2963	},
		2964	"c/death" => {
		2965	id => "death",
		2966	title => "Death",
		2967	reply => undef,
		2968	tooltip => "Reason for and more info about your most recent death",
		2969	},
		2970	"c/say" => $SAY_CHANNEL,
		2971	"c/chat" => $CHAT_CHANNEL,
		2972	);
		2973
		2974	sub cf::client::send_msg {
		2975	my ($self, $channel, $msg, $color, @extra) = @_;
		2976
		2977	$msg = $self->pl->expand_cfpod ($msg)
		2978	unless $color & cf::NDI_VERBATIM;
		2979
		2980	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2981
		2982	# check predefined channels, for the benefit of C
		2983	if ($CHANNEL{$channel}) {
		2984	$channel = $CHANNEL{$channel};
		2985
		2986	$self->ext_msg (channel_info => $channel);
		2987	$channel = $channel->{id};
		2988
		2989	} elsif (ref $channel) {
		2990	# send meta info to client, if not yet sent
		2991	unless (exists $self->{channel}{$channel->{id}}) {
		2992	$self->{channel}{$channel->{id}} = $channel;
		2993	$self->ext_msg (channel_info => $channel);
		2994	}
		2995
		2996	$channel = $channel->{id};
		2997	}
		2998
		2999	return unless @extra || length $msg;
		3000
		3001	# default colour, mask it out
		3002	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3003	if $color & cf::NDI_DEF;
		3004
		3005	my $pkt = "msg "
		3006	. $self->{json_coder}->encode (
		3007	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3008	);
		3009
		3010	$self->send_big_packet ($pkt);
		3011	}
		3012
		3013	=item $client->ext_msg ($type, @msg)
		3014
		3015	Sends an ext event to the client.
		3016
		3017	=cut
		3018
		3019	sub cf::client::ext_msg($$@) {
		3020	my ($self, $type, @msg) = @_;
		3021
		3022	if ($self->extcmd == 2) {
		3023	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3024	} elsif ($self->extcmd == 1) { # TODO: remove
		3025	push @msg, msgtype => "event_$type";
		3026	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3027	}
		3028	}
		3029
		3030	=item $client->ext_reply ($msgid, @msg)
		3031
		3032	Sends an ext reply to the client.
		3033
		3034	=cut
		3035
		3036	sub cf::client::ext_reply($$@) {
		3037	my ($self, $id, @msg) = @_;
		3038
		3039	if ($self->extcmd == 2) {
		3040	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3041	} elsif ($self->extcmd == 1) {
		3042	#TODO: version 1, remove
		3043	unshift @msg, msgtype => "reply", msgid => $id;
		3044	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3045	}
		3046	}
2001		3047
2002	=item $success = $client->query ($flags, "text", \&cb)	3048	=item $success = $client->query ($flags, "text", \&cb)
2003		3049
2004	Queues a query to the client, calling the given callback with	3050	Queues a query to the client, calling the given callback with
2005	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3051	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2006	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3052	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2007		3053
2008	Queries can fail, so check the return code. Or don't, as queries will become	3054	Queries can fail, so check the return code. Or don't, as queries will
2009	reliable at some point in the future.	3055	become reliable at some point in the future.
2010		3056
2011	=cut	3057	=cut
2012		3058
2013	sub cf::client::query {	3059	sub cf::client::query {
2014	my ($self, $flags, $text, $cb) = @_;	3060	my ($self, $flags, $text, $cb) = @_;
…		…
2022	utf8::encode $text;	3068	utf8::encode $text;
2023	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3069	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2024		3070
2025	$self->send_packet ($self->{query_queue}[0][0])	3071	$self->send_packet ($self->{query_queue}[0][0])
2026	if @{ $self->{query_queue} } == 1;	3072	if @{ $self->{query_queue} } == 1;
		3073
		3074	1
2027	}	3075	}
2028		3076
2029	cf::client->attach (	3077	cf::client->attach (
		3078	on_connect => sub {
		3079	my ($ns) = @_;
		3080
		3081	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3082	},
2030	on_reply => sub {	3083	on_reply => sub {
2031	my ($ns, $msg) = @_;	3084	my ($ns, $msg) = @_;
2032		3085
2033	# this weird shuffling is so that direct followup queries	3086	# this weird shuffling is so that direct followup queries
2034	# get handled first	3087	# get handled first
…		…
2046	} else {	3099	} else {
2047	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3100	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2048	}	3101	}
2049	}	3102	}
2050	},	3103	},
		3104	on_exticmd => sub {
		3105	my ($ns, $buf) = @_;
		3106
		3107	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3108
		3109	if (ref $msg) {
		3110	my ($type, $reply, @payload) =
		3111	"ARRAY" eq ref $msg
		3112	? @$msg
		3113	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3114
		3115	my @reply;
		3116
		3117	if (my $cb = $EXTICMD{$type}) {
		3118	@reply = $cb->($ns, @payload);
		3119	}
		3120
		3121	$ns->ext_reply ($reply, @reply)
		3122	if $reply;
		3123
		3124	} else {
		3125	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3126	}
		3127
		3128	cf::override;
		3129	},
2051	);	3130	);
2052		3131
2053	=item $client->async (\&cb)	3132	=item $client->async (\&cb)
2054		3133
2055	Create a new coroutine, running the specified callback. The coroutine will	3134	Create a new coroutine, running the specified callback. The coroutine will
…		…
2071		3150
2072	$coro	3151	$coro
2073	}	3152	}
2074		3153
2075	cf::client->attach (	3154	cf::client->attach (
2076	on_destroy => sub {	3155	on_client_destroy => sub {
2077	my ($ns) = @_;	3156	my ($ns) = @_;
2078		3157
2079	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3158	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2080	},	3159	},
2081	);	3160	);
…		…
2096	our $safe = new Safe "safe";	3175	our $safe = new Safe "safe";
2097	our $safe_hole = new Safe::Hole;	3176	our $safe_hole = new Safe::Hole;
2098		3177
2099	$SIG{FPE} = 'IGNORE';	3178	$SIG{FPE} = 'IGNORE';
2100		3179
2101	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3180	$safe->permit_only (Opcode::opset qw(
		3181	:base_core :base_mem :base_orig :base_math :base_loop
		3182	grepstart grepwhile mapstart mapwhile
		3183	sort time
		3184	));
2102		3185
2103	# here we export the classes and methods available to script code	3186	# here we export the classes and methods available to script code
2104		3187
2105	=pod	3188	=pod
2106		3189
2107	The following fucntions and emthods are available within a safe environment:	3190	The following functions and methods are available within a safe environment:
2108		3191
2109	cf::object contr pay_amount pay_player map	3192	cf::object
		3193	contr pay_amount pay_player map x y force_find force_add destroy
		3194	insert remove name archname title slaying race decrease split
		3195	value
		3196
2110	cf::object::player player	3197	cf::object::player
2111	cf::player peaceful	3198	player
2112	cf::map trigger	3199
		3200	cf::player
		3201	peaceful
		3202
		3203	cf::map
		3204	trigger
2113		3205
2114	=cut	3206	=cut
2115		3207
2116	for (	3208	for (
2117	["cf::object" => qw(contr pay_amount pay_player map)],	3209	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3210	insert remove inv nrof name archname title slaying race
		3211	decrease split destroy change_exp value msg lore send_msg)],
2118	["cf::object::player" => qw(player)],	3212	["cf::object::player" => qw(player)],
2119	["cf::player" => qw(peaceful)],	3213	["cf::player" => qw(peaceful send_msg)],
2120	["cf::map" => qw(trigger)],	3214	["cf::map" => qw(trigger)],
2121	) {	3215	) {
2122	no strict 'refs';	3216	no strict 'refs';
2123	my ($pkg, @funs) = @$_;	3217	my ($pkg, @funs) = @$_;
2124	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3218	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2142		3236
2143	my $qcode = $code;	3237	my $qcode = $code;
2144	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3238	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2145	$qcode =~ s/\n/\\n/g;	3239	$qcode =~ s/\n/\\n/g;
2146		3240
		3241	%vars = (_dummy => 0) unless %vars;
		3242
		3243	my @res;
2147	local $_;	3244	local $_;
2148	local @safe::cf::_safe_eval_args = values %vars;
2149		3245
2150	my $eval =	3246	my $eval =
2151	"do {\n"	3247	"do {\n"
2152	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3248	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2153	. "#line 0 \"{$qcode}\"\n"	3249	. "#line 0 \"{$qcode}\"\n"
2154	. $code	3250	. $code
2155	. "\n}"	3251	. "\n}"
2156	;	3252	;
2157		3253
		3254	if ($CFG{safe_eval}) {
2158	sub_generation_inc;	3255	sub_generation_inc;
		3256	local @safe::cf::_safe_eval_args = values %vars;
2159	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3257	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2160	sub_generation_inc;	3258	sub_generation_inc;
		3259	} else {
		3260	local @cf::_safe_eval_args = values %vars;
		3261	@res = wantarray ? eval eval : scalar eval $eval;
		3262	}
2161		3263
2162	if ($@) {	3264	if ($@) {
2163	warn "$@";	3265	warn "$@";
2164	warn "while executing safe code '$code'\n";	3266	warn "while executing safe code '$code'\n";
2165	warn "with arguments " . (join " ", %vars) . "\n";	3267	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2184	=cut	3286	=cut
2185		3287
2186	sub register_script_function {	3288	sub register_script_function {
2187	my ($fun, $cb) = @_;	3289	my ($fun, $cb) = @_;
2188		3290
2189	no strict 'refs';	3291	$fun = "safe::$fun" if $CFG{safe_eval};
2190	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3292	*$fun = $safe_hole->wrap ($cb);
2191	}	3293	}
2192		3294
2193	=back	3295	=back
2194		3296
2195	=cut	3297	=cut
2196
2197	#############################################################################
2198
2199	=head2 EXTENSION DATABASE SUPPORT
2200
2201	Crossfire maintains a very simple database for extension use. It can
2202	currently store anything that can be serialised using Storable, which
2203	excludes objects.
2204
2205	The parameter C<$family> should best start with the name of the extension
2206	using it, it should be unique.
2207
2208	=over 4
2209
2210	=item $value = cf::db_get $family => $key
2211
2212	Returns a single value from the database.
2213
2214	=item cf::db_put $family => $key => $value
2215
2216	Stores the given C<$value> in the family.
2217
2218	=cut
2219
2220	our $DB;
2221
2222	sub db_init {
2223	unless ($DB) {
2224	$DB = BDB::db_create $DB_ENV;
2225
2226	cf::sync_job {
2227	eval {
2228	$DB->set_flags (BDB::CHKSUM);
2229
2230	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2231	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2232	cf::cleanup "db_open(db): $!" if $!;
2233	};
2234	cf::cleanup "db_open(db): $@" if $@;
2235	};
2236
2237	my $path = cf::localdir . "/database.pst";
2238	if (stat $path) {
2239	cf::sync_job {
2240	my $pst = Storable::retrieve $path;
2241
2242	cf::db_put (board => data => $pst->{board});
2243	cf::db_put (guildrules => data => $pst->{guildrules});
2244	cf::db_put (rent => balance => $pst->{rent}{balance});
2245	BDB::db_env_txn_checkpoint $DB_ENV;
2246
2247	unlink $path;
2248	};
2249	}
2250	}
2251	}
2252
2253	sub db_get($$) {
2254	my $key = "$_[0]/$_[1]";
2255
2256	cf::sync_job {
2257	BDB::db_get $DB, undef, $key, my $data;
2258
2259	$! ? ()
2260	: Compress::LZF::sthaw $data
2261	}
2262	}
2263
2264	sub db_put($$$) {
2265	BDB::dbreq_pri 4;
2266	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2267	}
2268		3298
2269	#############################################################################	3299	#############################################################################
2270	# the server's init and main functions	3300	# the server's init and main functions
2271		3301
2272	sub load_faces {	3302	sub load_facedata($) {
2273	my $path = sprintf "%s/faces", cf::datadir;	3303	my ($path) = @_;
2274		3304
		3305	# HACK to clear player env face cache, we need some signal framework
		3306	# for this (global event?)
		3307	%ext::player_env::MUSIC_FACE_CACHE = ();
		3308
		3309	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3310
2275	warn "loading faces from $path\n";	3311	warn "loading facedata from $path\n";
2276		3312
2277	my $faces;	3313	my $facedata;
2278	0 < aio_load $path, $faces	3314	0 < aio_load $path, $facedata
2279	or die "$path: $!";	3315	or die "$path: $!";
2280		3316
2281	Coro::cede;
2282	$faces = Storable::thaw $faces;	3317	$facedata = Coro::Storable::thaw $facedata;
2283	Coro::cede;
2284		3318
		3319	$facedata->{version} == 2
		3320	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3321
		3322	# patch in the exptable
		3323	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3324	$facedata->{resource}{"res/exp_table"} = {
		3325	type => FT_RSRC,
		3326	data => $exp_table,
		3327	hash => (Digest::MD5::md5 $exp_table),
		3328	};
		3329	cf::cede_to_tick;
		3330
		3331	{
		3332	my $faces = $facedata->{faceinfo};
		3333
2285	while (my ($face, $info) = each %$faces) {	3334	while (my ($face, $info) = each %$faces) {
2286	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3335	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2287	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3336
		3337	cf::face::set_visibility $idx, $info->{visibility};
		3338	cf::face::set_magicmap $idx, $info->{magicmap};
2288	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3339	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2289	Coro::cede;	3340	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3341
		3342	cf::cede_to_tick;
		3343	}
		3344
		3345	while (my ($face, $info) = each %$faces) {
		3346	next unless $info->{smooth};
		3347
		3348	my $idx = cf::face::find $face
		3349	or next;
		3350
		3351	if (my $smooth = cf::face::find $info->{smooth}) {
		3352	cf::face::set_smooth $idx, $smooth;
		3353	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3354	} else {
		3355	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3356	}
		3357
		3358	cf::cede_to_tick;
		3359	}
		3360	}
		3361
2290	}	3362	{
		3363	my $anims = $facedata->{animinfo};
		3364
		3365	while (my ($anim, $info) = each %$anims) {
		3366	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3367	cf::cede_to_tick;
		3368	}
		3369
		3370	cf::anim::invalidate_all; # d'oh
		3371	}
		3372
		3373	{
		3374	my $res = $facedata->{resource};
		3375
		3376	while (my ($name, $info) = each %$res) {
		3377	if (defined $info->{type}) {
		3378	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3379
		3380	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3381	cf::face::set_type $idx, $info->{type};
		3382	} else {
		3383	$RESOURCE{$name} = $info;
		3384	}
		3385
		3386	cf::cede_to_tick;
		3387	}
		3388	}
		3389
		3390	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
2291		3391
2292	1	3392	1
2293	}	3393	}
2294		3394
		3395	cf::global->attach (on_resource_update => sub {
		3396	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3397	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3398
		3399	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3400	my $sound = $soundconf->{compat}[$_]
		3401	or next;
		3402
		3403	my $face = cf::face::find "sound/$sound->[1]";
		3404	cf::sound::set $sound->[0] => $face;
		3405	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3406	}
		3407
		3408	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3409	my $face = cf::face::find "sound/$v";
		3410	cf::sound::set $k => $face;
		3411	}
		3412	}
		3413	});
		3414
		3415	register_exticmd fx_want => sub {
		3416	my ($ns, $want) = @_;
		3417
		3418	while (my ($k, $v) = each %$want) {
		3419	$ns->fx_want ($k, $v);
		3420	}
		3421	};
		3422
		3423	sub load_resource_file($) {
		3424	my $guard = lock_acquire "load_resource_file";
		3425
		3426	my $status = load_resource_file_ $_[0];
		3427	get_slot 0.1, 100;
		3428	cf::arch::commit_load;
		3429
		3430	$status
		3431	}
		3432
		3433	sub reload_regions {
		3434	# HACK to clear player env face cache, we need some signal framework
		3435	# for this (global event?)
		3436	%ext::player_env::MUSIC_FACE_CACHE = ();
		3437
		3438	load_resource_file "$MAPDIR/regions"
		3439	or die "unable to load regions file\n";
		3440
		3441	for (cf::region::list) {
		3442	$_->{match} = qr/$_->{match}/
		3443	if exists $_->{match};
		3444	}
		3445	}
		3446
		3447	sub reload_facedata {
		3448	load_facedata "$DATADIR/facedata"
		3449	or die "unable to load facedata\n";
		3450	}
		3451
		3452	sub reload_archetypes {
		3453	load_resource_file "$DATADIR/archetypes"
		3454	or die "unable to load archetypes\n";
		3455	}
		3456
		3457	sub reload_treasures {
		3458	load_resource_file "$DATADIR/treasures"
		3459	or die "unable to load treasurelists\n";
		3460	}
		3461
2295	sub reload_resources {	3462	sub reload_resources {
2296	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3463	warn "reloading resource files...\n";
2297	or die "unable to load regions file\n";#d#	3464
2298	load_faces	3465	reload_facedata;
2299	or die "unable to load faces\n";#d#	3466	reload_archetypes;
2300	}
2301
2302	sub init {
2303	reload_resources;	3467	reload_regions;
2304	}	3468	reload_treasures;
2305		3469
2306	sub cfg_load {	3470	warn "finished reloading resource files\n";
		3471	}
		3472
		3473	sub reload_config {
		3474	warn "reloading config file...\n";
		3475
2307	open my $fh, "<:utf8", cf::confdir . "/config"	3476	open my $fh, "<:utf8", "$CONFDIR/config"
2308	or return;	3477	or return;
2309		3478
2310	local $/;	3479	local $/;
2311	*CFG = YAML::Syck::Load <$fh>;	3480	*CFG = YAML::XS::Load scalar <$fh>;
2312		3481
2313	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3482	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2314		3483
2315	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3484	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2316	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3485	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2320	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3489	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2321	and die "WARNING: m(un)lockall failed: $!\n";	3490	and die "WARNING: m(un)lockall failed: $!\n";
2322	};	3491	};
2323	warn $@ if $@;	3492	warn $@ if $@;
2324	}	3493	}
		3494
		3495	warn "finished reloading resource files\n";
		3496	}
		3497
		3498	sub pidfile() {
		3499	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3500	or die "$PIDFILE: $!";
		3501	flock $fh, &Fcntl::LOCK_EX
		3502	or die "$PIDFILE: flock: $!";
		3503	$fh
		3504	}
		3505
		3506	# make sure only one server instance is running at any one time
		3507	sub atomic {
		3508	my $fh = pidfile;
		3509
		3510	my $pid = <$fh>;
		3511	kill 9, $pid if $pid > 0;
		3512
		3513	seek $fh, 0, 0;
		3514	print $fh $$;
		3515	}
		3516
		3517	sub main_loop {
		3518	warn "EV::loop starting\n";
		3519	if (1) {
		3520	EV::loop;
		3521	}
		3522	warn "EV::loop returned\n";
		3523	goto &main_loop unless $REALLY_UNLOOP;
2325	}	3524	}
2326		3525
2327	sub main {	3526	sub main {
		3527	cf::init_globals; # initialise logging
		3528
		3529	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3530	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3531	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3532	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3533
		3534	cf::init_experience;
		3535	cf::init_anim;
		3536	cf::init_attackmess;
		3537	cf::init_dynamic;
		3538
		3539	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3540
2328	# we must not ever block the main coroutine	3541	# we must not ever block the main coroutine
2329	local $Coro::idle = sub {	3542	local $Coro::idle = sub {
2330	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3543	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2331	(async {	3544	(async {
2332	Event::one_event;	3545	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3546	EV::loop EV::LOOP_ONESHOT;
2333	})->prio (Coro::PRIO_MAX);	3547	})->prio (Coro::PRIO_MAX);
2334	};	3548	};
2335		3549
2336	cfg_load;	3550	evthread_start IO::AIO::poll_fileno;
		3551
		3552	cf::sync_job {
		3553	cf::load_settings;
		3554	cf::load_materials;
		3555
		3556	reload_resources;
		3557	reload_config;
2337	db_init;	3558	db_init;
		3559
		3560	cf::init_uuid;
		3561	cf::init_signals;
		3562	cf::init_skills;
		3563
		3564	cf::init_beforeplay;
		3565
		3566	atomic;
		3567
2338	load_extensions;	3568	load_extensions;
2339		3569
2340	$TICK_WATCHER->start;	3570	utime time, time, $RUNTIMEFILE;
2341	Event::loop;	3571
		3572	# no (long-running) fork's whatsoever before this point(!)
		3573	use POSIX ();
		3574	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3575
		3576	(pop @POST_INIT)->(0) while @POST_INIT;
		3577	};
		3578
		3579	main_loop;
2342	}	3580	}
2343		3581
2344	#############################################################################	3582	#############################################################################
2345	# initialisation and cleanup	3583	# initialisation and cleanup
2346		3584
2347	# install some emergency cleanup handlers	3585	# install some emergency cleanup handlers
2348	BEGIN {	3586	BEGIN {
		3587	our %SIGWATCHER = ();
2349	for my $signal (qw(INT HUP TERM)) {	3588	for my $signal (qw(INT HUP TERM)) {
2350	Event->signal (	3589	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2351	reentrant => 0,
2352	data => WF_AUTOCANCEL,
2353	signal => $signal,
2354	prio => 0,
2355	cb => sub {
2356	cf::cleanup "SIG$signal";	3590	cf::cleanup "SIG$signal";
2357	},
2358	);	3591	};
		3592	}
		3593	}
		3594
		3595	sub write_runtime_sync {
		3596	my $t0 = EV::time;
		3597
		3598	# first touch the runtime file to show we are still running:
		3599	# the fsync below can take a very very long time.
		3600
		3601	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3602
		3603	my $guard = cf::lock_acquire "write_runtime";
		3604
		3605	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3606	or return;
		3607
		3608	my $value = $cf::RUNTIME + 90 + 10;
		3609	# 10 is the runtime save interval, for a monotonic clock
		3610	# 60 allows for the watchdog to kill the server.
		3611
		3612	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3613	and return;
		3614
		3615	# always fsync - this file is important
		3616	aio_fsync $fh
		3617	and return;
		3618
		3619	# touch it again to show we are up-to-date
		3620	aio_utime $fh, undef, undef;
		3621
		3622	close $fh
		3623	or return;
		3624
		3625	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3626	and return;
		3627
		3628	warn sprintf "runtime file written (%gs).\n", EV::time - $t0;
		3629
2359	}	3630	1
		3631	}
		3632
		3633	our $uuid_lock;
		3634	our $uuid_skip;
		3635
		3636	sub write_uuid_sync($) {
		3637	$uuid_skip ||= $_[0];
		3638
		3639	return if $uuid_lock;
		3640	local $uuid_lock = 1;
		3641
		3642	my $uuid = "$LOCALDIR/uuid";
		3643
		3644	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3645	or return;
		3646
		3647	my $value = uuid_seq uuid_cur;
		3648
		3649	unless ($value) {
		3650	warn "cowardly refusing to write zero uuid value!\n";
		3651	return;
		3652	}
		3653
		3654	my $value = uuid_str $value + $uuid_skip;
		3655	$uuid_skip = 0;
		3656
		3657	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3658	and return;
		3659
		3660	# always fsync - this file is important
		3661	aio_fsync $fh
		3662	and return;
		3663
		3664	close $fh
		3665	or return;
		3666
		3667	aio_rename "$uuid~", $uuid
		3668	and return;
		3669
		3670	warn "uuid file written ($value).\n";
		3671
		3672	1
		3673
		3674	}
		3675
		3676	sub write_uuid($$) {
		3677	my ($skip, $sync) = @_;
		3678
		3679	$sync ? write_uuid_sync $skip
		3680	: async { write_uuid_sync $skip };
2360	}	3681	}
2361		3682
2362	sub emergency_save() {	3683	sub emergency_save() {
2363	my $freeze_guard = cf::freeze_mainloop;	3684	my $freeze_guard = cf::freeze_mainloop;
2364		3685
2365	warn "enter emergency perl save\n";	3686	warn "emergency_perl_save: enter\n";
2366		3687
2367	cf::sync_job {	3688	cf::sync_job {
		3689	# this is a trade-off: we want to be very quick here, so
		3690	# save all maps without fsync, and later call a global sync
		3691	# (which in turn might be very very slow)
		3692	local $USE_FSYNC = 0;
		3693
2368	# use a peculiar iteration method to avoid tripping on perl	3694	# use a peculiar iteration method to avoid tripping on perl
2369	# refcount bugs in for. also avoids problems with players	3695	# refcount bugs in for. also avoids problems with players
2370	# and maps saved/destroyed asynchronously.	3696	# and maps saved/destroyed asynchronously.
2371	warn "begin emergency player save\n";	3697	warn "emergency_perl_save: begin player save\n";
2372	for my $login (keys %cf::PLAYER) {	3698	for my $login (keys %cf::PLAYER) {
2373	my $pl = $cf::PLAYER{$login} or next;	3699	my $pl = $cf::PLAYER{$login} or next;
2374	$pl->valid or next;	3700	$pl->valid or next;
		3701	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2375	$pl->save;	3702	$pl->save;
2376	}	3703	}
2377	warn "end emergency player save\n";	3704	warn "emergency_perl_save: end player save\n";
2378		3705
2379	warn "begin emergency map save\n";	3706	warn "emergency_perl_save: begin map save\n";
2380	for my $path (keys %cf::MAP) {	3707	for my $path (keys %cf::MAP) {
2381	my $map = $cf::MAP{$path} or next;	3708	my $map = $cf::MAP{$path} or next;
2382	$map->valid or next;	3709	$map->valid or next;
2383	$map->save;	3710	$map->save;
2384	}	3711	}
2385	warn "end emergency map save\n";	3712	warn "emergency_perl_save: end map save\n";
2386		3713
2387	warn "begin emergency database checkpoint\n";	3714	warn "emergency_perl_save: begin database checkpoint\n";
2388	BDB::db_env_txn_checkpoint $DB_ENV;	3715	BDB::db_env_txn_checkpoint $DB_ENV;
2389	warn "end emergency database checkpoint\n";	3716	warn "emergency_perl_save: end database checkpoint\n";
		3717
		3718	warn "emergency_perl_save: begin write uuid\n";
		3719	write_uuid_sync 1;
		3720	warn "emergency_perl_save: end write uuid\n";
2390	};	3721	};
2391		3722
		3723	warn "emergency_perl_save: starting sync()\n";
		3724	IO::AIO::aio_sync sub {
		3725	warn "emergency_perl_save: finished sync()\n";
		3726	};
		3727
2392	warn "leave emergency perl save\n";	3728	warn "emergency_perl_save: leave\n";
2393	}	3729	}
2394		3730
2395	sub post_cleanup {	3731	sub post_cleanup {
2396	my ($make_core) = @_;	3732	my ($make_core) = @_;
2397		3733
2398	warn Carp::longmess "post_cleanup backtrace"	3734	warn Carp::longmess "post_cleanup backtrace"
2399	if $make_core;	3735	if $make_core;
2400	}
2401		3736
		3737	my $fh = pidfile;
		3738	unlink $PIDFILE if <$fh> == $$;
		3739	}
		3740
		3741	# a safer delete_package, copied from Symbol
		3742	sub clear_package($) {
		3743	my $pkg = shift;
		3744
		3745	# expand to full symbol table name if needed
		3746	unless ($pkg =~ /^main::.*::$/) {
		3747	$pkg = "main$pkg" if $pkg =~ /^::/;
		3748	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3749	$pkg .= '::' unless $pkg =~ /::$/;
		3750	}
		3751
		3752	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3753	my $stem_symtab = *{$stem}{HASH};
		3754
		3755	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3756	or return;
		3757
		3758	# clear all symbols
		3759	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3760	for my $name (keys %$leaf_symtab) {
		3761	_gv_clear *{"$pkg$name"};
		3762	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3763	}
		3764	warn "cleared package $pkg\n";#d#
		3765	}
		3766
2402	sub reload() {	3767	sub do_reload_perl() {
2403	# can/must only be called in main	3768	# can/must only be called in main
2404	if ($Coro::current != $Coro::main) {	3769	if ($Coro::current != $Coro::main) {
2405	warn "can only reload from main coroutine";	3770	warn "can only reload from main coroutine";
2406	return;	3771	return;
2407	}	3772	}
2408		3773
		3774	return if $RELOAD++;
		3775
		3776	my $t1 = EV::time;
		3777
		3778	while ($RELOAD) {
2409	warn "reloading...";	3779	warn "reloading...";
2410		3780
2411	warn "entering sync_job";	3781	warn "entering sync_job";
2412		3782
2413	cf::sync_job {	3783	cf::sync_job {
2414	cf::write_runtime; # external watchdog should not bark	3784	cf::write_runtime_sync; # external watchdog should not bark
2415	cf::emergency_save;	3785	cf::emergency_save;
2416	cf::write_runtime; # external watchdog should not bark	3786	cf::write_runtime_sync; # external watchdog should not bark
2417		3787
2418	warn "syncing database to disk";	3788	warn "syncing database to disk";
2419	BDB::db_env_txn_checkpoint $DB_ENV;	3789	BDB::db_env_txn_checkpoint $DB_ENV;
2420		3790
2421	# if anything goes wrong in here, we should simply crash as we already saved	3791	# if anything goes wrong in here, we should simply crash as we already saved
2422		3792
2423	warn "cancelling all WF_AUTOCANCEL watchers";
2424	for (Event::all_watchers) {
2425	$_->cancel if $_->data & WF_AUTOCANCEL;
2426	}
2427
2428	warn "flushing outstanding aio requests";	3793	warn "flushing outstanding aio requests";
2429	for (;;) {
2430	BDB::flush;
2431	IO::AIO::flush;
2432	Coro::cede;
2433	last unless IO::AIO::nreqs || BDB::nreqs;	3794	while (IO::AIO::nreqs || BDB::nreqs) {
2434	warn "iterate...";	3795	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2435	}
2436
2437	++$RELOAD;
2438
2439	warn "cancelling all extension coros";
2440	$_->cancel for values %EXT_CORO;
2441	%EXT_CORO = ();
2442
2443	warn "removing commands";
2444	%COMMAND = ();
2445
2446	warn "removing ext commands";
2447	%EXTCMD = ();
2448
2449	warn "unloading/nuking all extensions";
2450	for my $pkg (@EXTS) {
2451	warn "... unloading $pkg";
2452
2453	if (my $cb = $pkg->can ("unload")) {
2454	eval {
2455	$cb->($pkg);
2456	1
2457	} or warn "$pkg unloaded, but with errors: $@";
2458	}	3796	}
2459		3797
2460	warn "... nuking $pkg";	3798	warn "cancelling all extension coros";
2461	Symbol::delete_package $pkg;	3799	$_->cancel for values %EXT_CORO;
2462	}	3800	%EXT_CORO = ();
2463		3801
2464	warn "unloading all perl modules loaded from $LIBDIR";	3802	warn "removing commands";
2465	while (my ($k, $v) = each %INC) {	3803	%COMMAND = ();
2466	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2467		3804
		3805	warn "removing ext/exti commands";
		3806	%EXTCMD = ();
		3807	%EXTICMD = ();
		3808
		3809	warn "unloading/nuking all extensions";
		3810	for my $pkg (@EXTS) {
2468	warn "... unloading $k";	3811	warn "... unloading $pkg";
2469	delete $INC{$k};
2470		3812
2471	$k =~ s/\.pm$//;
2472	$k =~ s/\//::/g;
2473
2474	if (my $cb = $k->can ("unload_module")) {	3813	if (my $cb = $pkg->can ("unload")) {
		3814	eval {
2475	$cb->();	3815	$cb->($pkg);
		3816	1
		3817	} or warn "$pkg unloaded, but with errors: $@";
		3818	}
		3819
		3820	warn "... clearing $pkg";
		3821	clear_package $pkg;
2476	}	3822	}
2477		3823
2478	Symbol::delete_package $k;	3824	warn "unloading all perl modules loaded from $LIBDIR";
		3825	while (my ($k, $v) = each %INC) {
		3826	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3827
		3828	warn "... unloading $k";
		3829	delete $INC{$k};
		3830
		3831	$k =~ s/\.pm$//;
		3832	$k =~ s/\//::/g;
		3833
		3834	if (my $cb = $k->can ("unload_module")) {
		3835	$cb->();
		3836	}
		3837
		3838	clear_package $k;
2479	}	3839	}
2480		3840
2481	warn "getting rid of safe::, as good as possible";	3841	warn "getting rid of safe::, as good as possible";
2482	Symbol::delete_package "safe::$_"	3842	clear_package "safe::$_"
2483	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3843	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2484		3844
2485	warn "unloading cf.pm \"a bit\"";	3845	warn "unloading cf.pm \"a bit\"";
2486	delete $INC{"cf.pm"};	3846	delete $INC{"cf.pm"};
		3847	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2487		3848
2488	# don't, removes xs symbols, too,	3849	# don't, removes xs symbols, too,
2489	# and global variables created in xs	3850	# and global variables created in xs
2490	#Symbol::delete_package __PACKAGE__;	3851	#clear_package __PACKAGE__;
2491		3852
2492	warn "unload completed, starting to reload now";	3853	warn "unload completed, starting to reload now";
2493		3854
2494	warn "reloading cf.pm";	3855	warn "reloading cf.pm";
2495	require cf;	3856	require cf;
2496	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3857	cf::_connect_to_perl_1;
2497		3858
2498	warn "loading config and database again";	3859	warn "loading config and database again";
2499	cf::cfg_load;	3860	cf::reload_config;
2500		3861
2501	warn "loading extensions";	3862	warn "loading extensions";
2502	cf::load_extensions;	3863	cf::load_extensions;
2503		3864
		3865	if ($REATTACH_ON_RELOAD) {
2504	warn "reattaching attachments to objects/players";	3866	warn "reattaching attachments to objects/players";
2505	_global_reattach; # objects, sockets	3867	_global_reattach; # objects, sockets
2506	warn "reattaching attachments to maps";	3868	warn "reattaching attachments to maps";
2507	reattach $_ for values %MAP;	3869	reattach $_ for values %MAP;
2508	warn "reattaching attachments to players";	3870	warn "reattaching attachments to players";
2509	reattach $_ for values %PLAYER;	3871	reattach $_ for values %PLAYER;
		3872	}
2510		3873
2511	warn "loading reloadable resources";	3874	warn "running post_init jobs";
2512	reload_resources;	3875	(pop @POST_INIT)->(1) while @POST_INIT;
2513		3876
2514	warn "leaving sync_job";	3877	warn "leaving sync_job";
2515		3878
2516	1	3879	1
2517	} or do {	3880	} or do {
2518	warn $@;	3881	warn $@;
2519	warn "error while reloading, exiting.";	3882	cf::cleanup "error while reloading, exiting.";
2520	exit 1;	3883	};
		3884
		3885	warn "reloaded";
		3886	--$RELOAD;
		3887	}
		3888
		3889	$t1 = EV::time - $t1;
		3890	warn "reload completed in ${t1}s\n";
		3891	};
		3892
		3893	our $RELOAD_WATCHER; # used only during reload
		3894
		3895	sub reload_perl() {
		3896	# doing reload synchronously and two reloads happen back-to-back,
		3897	# coro crashes during coro_state_free->destroy here.
		3898
		3899	$RELOAD_WATCHER ||= cf::async {
		3900	Coro::AIO::aio_wait cache_extensions;
		3901
		3902	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3903	do_reload_perl;
		3904	undef $RELOAD_WATCHER;
		3905	};
2521	};	3906	};
2522		3907	}
2523	warn "reloaded";
2524	};
2525
2526	our $RELOAD_WATCHER; # used only during reload
2527		3908
2528	register_command "reload" => sub {	3909	register_command "reload" => sub {
2529	my ($who, $arg) = @_;	3910	my ($who, $arg) = @_;
2530		3911
2531	if ($who->flag (FLAG_WIZ)) {	3912	if ($who->flag (FLAG_WIZ)) {
2532	$who->message ("reloading server.");	3913	$who->message ("reloading server.");
2533		3914	async {
2534	# doing reload synchronously and two reloads happen back-to-back,	3915	$Coro::current->{desc} = "perl_reload";
2535	# coro crashes during coro_state_free->destroy here.
2536
2537	$RELOAD_WATCHER ||= Event->timer (
2538	reentrant => 0,
2539	after => 0,
2540	data => WF_AUTOCANCEL,
2541	cb => sub {
2542	reload;	3916	reload_perl;
2543	undef $RELOAD_WATCHER;
2544	},
2545	);	3917	};
2546	}	3918	}
2547	};	3919	};
2548		3920
2549	unshift @INC, $LIBDIR;	3921	unshift @INC, $LIBDIR;
2550		3922
2551	my $bug_warning = 0;	3923	my $bug_warning = 0;
2552		3924
2553	$TICK_WATCHER = Event->timer (	3925	our @WAIT_FOR_TICK;
2554	reentrant => 0,	3926	our @WAIT_FOR_TICK_BEGIN;
2555	parked => 1,	3927
2556	prio => 0,	3928	sub wait_for_tick {
2557	at => $NEXT_TICK || $TICK,	3929	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2558	data => WF_AUTOCANCEL,	3930
2559	cb => sub {	3931	my $signal = new Coro::Signal;
		3932	push @WAIT_FOR_TICK, $signal;
		3933	$signal->wait;
		3934	}
		3935
		3936	sub wait_for_tick_begin {
		3937	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3938
		3939	my $signal = new Coro::Signal;
		3940	push @WAIT_FOR_TICK_BEGIN, $signal;
		3941	$signal->wait;
		3942	}
		3943
		3944	sub tick {
2560	if ($Coro::current != $Coro::main) {	3945	if ($Coro::current != $Coro::main) {
2561	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3946	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2562	unless ++$bug_warning > 10;	3947	unless ++$bug_warning > 10;
2563	return;	3948	return;
2564	}	3949	}
2565		3950
2566	$NOW = Event::time;
2567
2568	cf::server_tick; # one server iteration	3951	cf::server_tick; # one server iteration
2569	$RUNTIME += $TICK;
2570	$NEXT_TICK += $TICK;
2571		3952
		3953	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
		3954
2572	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3955	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2573	$NEXT_RUNTIME_WRITE = $NOW + 10;	3956	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2574	Coro::async_pool {	3957	Coro::async_pool {
		3958	$Coro::current->{desc} = "runtime saver";
2575	write_runtime	3959	write_runtime_sync
2576	or warn "ERROR: unable to write runtime file: $!";	3960	or warn "ERROR: unable to write runtime file: $!";
2577	};
2578	}	3961	};
2579
2580	$WAIT_FOR_TICK->broadcast;
2581	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2582
2583	# my $AFTER = Event::time;
2584	# warn $AFTER - $NOW;#d#
2585
2586	# if we are delayed by four ticks or more, skip them all
2587	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2588
2589	$TICK_WATCHER->at ($NEXT_TICK);
2590	$TICK_WATCHER->start;
2591	},	3962	}
2592	);	3963
		3964	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3965	$sig->send;
		3966	}
		3967	while (my $sig = shift @WAIT_FOR_TICK) {
		3968	$sig->send;
		3969	}
		3970
		3971	$LOAD = ($NOW - $TICK_START) / $TICK;
		3972	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3973
		3974	if (0) {
		3975	if ($NEXT_TICK) {
		3976	my $jitter = $TICK_START - $NEXT_TICK;
		3977	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3978	warn "jitter $JITTER\n";#d#
		3979	}
		3980	}
		3981	}
2593		3982
2594	{	3983	{
2595	BDB::max_poll_time $TICK * 0.1;	3984	# configure BDB
2596	$BDB_POLL_WATCHER = Event->io (	3985
2597	reentrant => 0,
2598	fd => BDB::poll_fileno,
2599	poll => 'r',
2600	prio => 0,
2601	data => WF_AUTOCANCEL,
2602	cb => \&BDB::poll_cb,
2603	);
2604	BDB::min_parallel 8;	3986	BDB::min_parallel 16;
2605		3987	BDB::max_poll_reqs $TICK * 0.1;
2606	BDB::set_sync_prepare {	3988	$AnyEvent::BDB::WATCHER->priority (1);
2607	my $status;
2608	my $current = $Coro::current;
2609	(
2610	sub {
2611	$status = $!;
2612	$current->ready; undef $current;
2613	},
2614	sub {
2615	Coro::schedule while defined $current;
2616	$! = $status;
2617	},
2618	)
2619	};
2620		3989
2621	unless ($DB_ENV) {	3990	unless ($DB_ENV) {
2622	$DB_ENV = BDB::db_env_create;	3991	$DB_ENV = BDB::db_env_create;
		3992	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3993	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3994	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3995	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3996	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2623		3997
2624	cf::sync_job {	3998	cf::sync_job {
2625	eval {	3999	eval {
2626	BDB::db_env_open	4000	BDB::db_env_open
2627	$DB_ENV,	4001	$DB_ENV,
2628	$BDB_ENV_DIR,	4002	$BDBDIR,
2629	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4003	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2630	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4004	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2631	0666;	4005	0666;
2632		4006
2633	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4007	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2634
2635	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2636	$DB_ENV->set_lk_detect;
2637	};	4008	};
2638		4009
2639	cf::cleanup "db_env_open(db): $@" if $@;	4010	cf::cleanup "db_env_open(db): $@" if $@;
2640	};	4011	};
2641	}	4012	}
		4013
		4014	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4015	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4016	};
		4017	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4018	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4019	};
		4020	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4021	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4022	};
2642	}	4023	}
2643		4024
2644	{	4025	{
		4026	# configure IO::AIO
		4027
2645	IO::AIO::min_parallel 8;	4028	IO::AIO::min_parallel 8;
2646
2647	undef $Coro::AIO::WATCHER;
2648	IO::AIO::max_poll_time $TICK * 0.1;	4029	IO::AIO::max_poll_time $TICK * 0.1;
2649	$AIO_POLL_WATCHER = Event->io (	4030	undef $AnyEvent::AIO::WATCHER;
2650	reentrant => 0,
2651	data => WF_AUTOCANCEL,
2652	fd => IO::AIO::poll_fileno,
2653	poll => 'r',
2654	prio => 6,
2655	cb => \&IO::AIO::poll_cb,
2656	);
2657	}	4031	}
		4032
		4033	my $_log_backtrace;
		4034
		4035	sub _log_backtrace {
		4036	my ($msg, @addr) = @_;
		4037
		4038	$msg =~ s/\n//;
		4039
		4040	# limit the # of concurrent backtraces
		4041	if ($_log_backtrace < 2) {
		4042	++$_log_backtrace;
		4043	my $perl_bt = Carp::longmess $msg;
		4044	async {
		4045	$Coro::current->{desc} = "abt $msg";
		4046
		4047	my @bt = fork_call {
		4048	@addr = map { sprintf "%x", $_ } @addr;
		4049	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4050	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4051	or die "addr2line: $!";
		4052
		4053	my @funcs;
		4054	my @res = <$fh>;
		4055	chomp for @res;
		4056	while (@res) {
		4057	my ($func, $line) = splice @res, 0, 2, ();
		4058	push @funcs, "[$func] $line";
		4059	}
		4060
		4061	@funcs
		4062	};
		4063
		4064	LOG llevInfo, "[ABT] $perl_bt\n";
		4065	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4066	LOG llevInfo, "[ABT] $_\n" for @bt;
		4067	--$_log_backtrace;
		4068	};
		4069	} else {
		4070	LOG llevInfo, "[ABT] $msg\n";
		4071	LOG llevInfo, "[ABT] [suppressed]\n";
		4072	}
		4073	}
		4074
		4075	# load additional modules
		4076	require "cf/$_.pm" for @EXTRA_MODULES;
		4077	cf::_connect_to_perl_2;
2658		4078
2659	END { cf::emergency_save }	4079	END { cf::emergency_save }
2660		4080
2661	1	4081	1
2662		4082

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