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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.250 by root, Wed Apr 18 14:24:10 2007 UTC vs.
Revision 1.506 by root, Wed Feb 3 20:48:22 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 Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
14		38
		39	use Guard ();
15	use Coro 3.61 ();	40	use Coro ();
16	use Coro::State;	41	use Coro::State;
17	use Coro::Handle;	42	use Coro::Handle;
		43	use Coro::EV;
18	use Coro::Event;	44	use Coro::AnyEvent;
19	use Coro::Timer;	45	use Coro::Timer;
20	use Coro::Signal;	46	use Coro::Signal;
21	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
22	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
23	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
24		54
		55	use JSON::XS 2.01 ();
25	use BDB ();	56	use BDB ();
26	use Data::Dumper;	57	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	58	use Fcntl;
29	use YAML::Syck ();	59	use YAML::XS ();
30	use IO::AIO 2.32 ();	60	use IO::AIO ();
31	use Time::HiRes;	61	use Time::HiRes;
32	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
33		66
34	# configure various modules to our taste	67	# configure various modules to our taste
35	#	68	#
36	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		77
40	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
41		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		80
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
59	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
		96
		97	our $CONFDIR = confdir;
		98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
60		112
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
62	our $TICK_WATCHER;
63	our $AIO_POLL_WATCHER;
64	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
65	our $NEXT_TICK;	115	our $NEXT_TICK;
66	our $NOW;
67	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
68		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
69	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
70	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
71		124
72	our %CFG;	125	our %CFG;
73		126
74	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
75	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
76		130
77	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
78	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
80	our $RANDOM_MAPS = cf::localdir . "/random";
81	our $BDB_ENV_DIR = cf::localdir . "/db";
82		134
83	# used to convert map paths into valid unix filenames by replacing / by ∕	135	# used to convert map paths into valid unix filenames by replacing / by ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		137
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
		147
86	binmode STDOUT;	148	binmode STDOUT;
87	binmode STDERR;	149	binmode STDERR;
88		150
89	# read virtual server time, if available	151	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
91	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
92	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
93	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
94	}	156	}
95		157
96	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
97	mkdir cf::localdir . "/" . cf::playerdir;	159
98	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
99	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
100	mkdir $RANDOM_MAPS;
101	mkdir $BDB_ENV_DIR;
102		162
103	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
104		164
105	sub cf::map::normalise;	165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
106		177
107	#############################################################################	178	#############################################################################
108		179
109	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
110		181
…		…
117	=item $cf::RUNTIME	188	=item $cf::RUNTIME
118		189
119	The time this server has run, starts at 0 and is increased by $cf::TICK on	190	The time this server has run, starts at 0 and is increased by $cf::TICK on
120	every server tick.	191	every server tick.
121		192
122	=item $cf::LIBDIR	193	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		194	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		195	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
123		196
124	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
125	be found. It will be added to C<@INC> automatically.	198	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		199	unique-items directory, player file directory, random maps directory and
		200	database environment.
126		201
127	=item $cf::NOW	202	=item $cf::NOW
128		203
129	The time of the last (current) server tick.	204	The time of the last (current) server tick.
130		205
131	=item $cf::TICK	206	=item $cf::TICK
132		207
133	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
134		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
135	=item %cf::CFG	220	=item %cf::CFG
136		221
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
138	from wherever your confdir points to.	223	from wherever your confdir points to.
139		224
140	=item cf::wait_for_tick, cf::wait_for_tick_begin	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
141		226
142	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
143	returns directly I<after> the tick processing (and consequently, can only wake one process	228	returns directly I<after> the tick processing (and consequently, can only wake one process
144	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
145		230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
		242
146	=back	243	=back
147		244
148	=cut	245	=cut
149		246
150	BEGIN {	247	$Coro::State::WARNHOOK = sub {
151	*CORE::GLOBAL::warn = sub {
152	my $msg = join "", @_;	248	my $msg = join "", @_;
153		249
154	$msg .= "\n"	250	$msg .= "\n"
155	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
156		252
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		254
159	utf8::encode $msg;
160	LOG llevError, $msg;	255	LOG llevError, $msg;
161	};	256	};
162	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
163		271
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
169	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
170		279
171	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
172	# within the Safe compartment.	281	# within the Safe compartment.
173	for my $pkg (qw(	282	for my $pkg (qw(
174	cf::global cf::attachable	283	cf::global cf::attachable
175	cf::object cf::object::player	284	cf::object cf::object::player
176	cf::client cf::player	285	cf::client cf::player
177	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
178	cf::map cf::party cf::region	288	cf::party cf::region
179	)) {	289	)) {
180	no strict 'refs';
181	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
182	}	291	}
183		292
184	$Event::DIED = sub {	293	$EV::DIED = sub {
185	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
186	};	295	};
		296
		297	#############################################################################
187		298
188	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
189		300
190	=over 4	301	=over 4
191		302
…		…
210	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
211	$d	322	$d
212	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
213	}	324	}
214		325
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
218		327
219	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
220		329
221	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
222		331
223	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
224		333
		334	=cut
		335
		336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		337
		338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
		353	}
		354
225	=item cf::lock_wait $string	355	=item cf::lock_wait $string
226		356
227	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
228		358
229	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
230		360
231	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
232	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
233	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
234	returned.	364	returned.
235		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
236	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
237	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
238		371
239	=cut	372	=item $locked = cf::lock_active $string
240		373
241	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
242		379
243	sub lock_wait($) {	380	sub lock_wait($) {
244	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
245
246	# wait for lock, if any
247	while ($LOCK{$key}) {
248	push @{ $LOCK{$key} }, $Coro::current;
249	Coro::schedule;
250	}
251	}	382	}
252		383
253	sub lock_acquire($) {	384	sub lock_acquire($) {
254	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
255		387
256	# wait, to be sure we are not locked	388	sub lock_active($) {
257	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
258
259	$LOCK{$key} = [];
260
261	Coro::guard {
262	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };
264	}
265	}	390	}
266		391
267	sub freeze_mainloop {	392	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
269		394
270	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
271	$TICK_WATCHER->start;	396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428	our $SLOT_DECAY = 0.9;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435	my $busy;
		436
		437	while () {
		438	next_job:
		439
		440	my $avail = cf::till_tick;
		441
		442	for (0 .. $#SLOT_QUEUE) {
		443	if ($SLOT_QUEUE[$_][0] <= $avail) {
		444	$busy = 0;
		445	my $job = splice @SLOT_QUEUE, $_, 1, ();
		446	$job->[2]->send;
		447	Coro::cede;
		448	goto next_job;
		449	} else {
		450	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		451	}
		452	}
		453
		454	if (@SLOT_QUEUE) {
		455	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		456	push @cf::WAIT_FOR_TICK, $signal;
		457	$signal->wait;
		458	} else {
		459	$busy = 0;
		460	Coro::schedule;
		461	}
272	};	462	}
273	$TICK_WATCHER->stop;	463	};
274	$guard	464
		465	sub get_slot($;$$) {
		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	$sig->wait;
275	}	478	}
276		479
277	=item cf::async { BLOCK }	480	=item cf::async { BLOCK }
278		481
279	Currently the same as Coro::async_pool, meaning you cannot use	482	Currently the same as Coro::async_pool, meaning you cannot use
…		…
284		487
285	BEGIN { *async = \&Coro::async_pool }	488	BEGIN { *async = \&Coro::async_pool }
286		489
287	=item cf::sync_job { BLOCK }	490	=item cf::sync_job { BLOCK }
288		491
289	The design of crossfire+ requires that the main coro ($Coro::main) is	492	The design of Deliantra requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	493	is always able to handle events or runnable, as Deliantra is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
292		496
293	If it must be done, put the blocking parts into C<sync_job>. This will run	497	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	498	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	499	server will be frozen during this time, so the block should either finish
296	fast or be very important.	500	fast or be very important.
…		…
299		503
300	sub sync_job(&) {	504	sub sync_job(&) {
301	my ($job) = @_;	505	my ($job) = @_;
302		506
303	if ($Coro::current == $Coro::main) {	507	if ($Coro::current == $Coro::main) {
		508	my $time = EV::time;
		509
304	# this is the main coro, too bad, we have to block	510	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	511	# till the operation succeeds, freezing the server :/
306		512
307	# TODO: use suspend/resume instead	513	LOG llevError, Carp::longmess "sync job";#d#
308	# (but this is cancel-safe)	514
309	my $freeze_guard = freeze_mainloop;	515	my $freeze_guard = freeze_mainloop;
310		516
311	my $busy = 1;	517	my $busy = 1;
312	my @res;	518	my @res;
313		519
314	(async {	520	(async {
		521	$Coro::current->desc ("sync job coro");
315	@res = eval { $job->() };	522	@res = eval { $job->() };
316	warn $@ if $@;	523	warn $@ if $@;
317	undef $busy;	524	undef $busy;
318	})->prio (Coro::PRIO_MAX);	525	})->prio (Coro::PRIO_MAX);
319		526
320	while ($busy) {	527	while ($busy) {
321	Coro::cede or Event::one_event;	528	if (Coro::nready) {
		529	Coro::cede_notself;
		530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
322	}	532	}
		533	}
		534
		535	my $time = EV::time - $time;
		536
		537	$TICK_START += $time; # do not account sync jobs to server load
323		538
324	wantarray ? @res : $res[0]	539	wantarray ? @res : $res[0]
325	} else {	540	} else {
326	# we are in another coroutine, how wonderful, everything just works	541	# we are in another coroutine, how wonderful, everything just works
327		542
…		…
347	$EXT_CORO{$coro+0} = $coro;	562	$EXT_CORO{$coro+0} = $coro;
348		563
349	$coro	564	$coro
350	}	565	}
351		566
352	sub write_runtime {	567	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		568
355	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.
356		573
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	574	=cut
358	or return;
359		575
360	my $value = $cf::RUNTIME + 90 + 10;	576	sub fork_call(&@) {
361	# 10 is the runtime save interval, for a monotonic clock	577	my ($cb, @args) = @_;
362	# 60 allows for the watchdog to kill the server.
363		578
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	579	# we seemingly have to make a local copy of the whole thing,
365	and return;	580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
366		582
367	# always fsync - this file is important	583	my @res = Coro::Util::fork_eval {
368	aio_fsync $fh	584	reset_signals;
369	and return;	585	&$cb
		586	}, @args;
370		587
371	close $fh	588	wantarray ? @res : $res[-1]
372	or return;	589	}
373		590
374	aio_rename "$runtime~", $runtime	591	=item $coin = coin_from_name $name
375	and return;
376		592
		593	=cut
		594
		595	our %coin_alias = (
		596	"silver" => "silvercoin",
		597	"silvercoin" => "silvercoin",
		598	"silvercoins" => "silvercoin",
		599	"gold" => "goldcoin",
		600	"goldcoin" => "goldcoin",
		601	"goldcoins" => "goldcoin",
		602	"platinum" => "platinacoin",
		603	"platinumcoin" => "platinacoin",
		604	"platinumcoins" => "platinacoin",
		605	"platina" => "platinacoin",
		606	"platinacoin" => "platinacoin",
		607	"platinacoins" => "platinacoin",
		608	"royalty" => "royalty",
		609	"royalties" => "royalty",
		610	);
		611
		612	sub coin_from_name($) {
		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($$) {
		660	my $key = "$_[0]/$_[1]";
		661
		662	cf::sync_job {
		663	BDB::db_get $DB, undef, $key, my $data;
		664
		665	$! ? ()
		666	: $data
377	1	667	}
		668	}
		669
		670	sub db_put($$$) {
		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"
378	}	743	}
379		744
380	=item cf::datalog type => key => value, ...	745	=item cf::datalog type => key => value, ...
381		746
382	Log a datalog packet of the given type with the given key-value pairs.	747	Log a datalog packet of the given type with the given key-value pairs.
…		…
394		759
395	#############################################################################	760	#############################################################################
396		761
397	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
398		763
399	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
400	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")
401	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
402		767
403	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>
404	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
405	crossfire+).	770	Deliantra).
406		771
407	=over 4	772	=over 4
408		773
409	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
410		775
…		…
454	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
455		820
456	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
457	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
458		823
459	Some classes such as crossfire maps and objects can specify attachments	824	Some classes such as deliantra maps and objects can specify attachments
460	that are attached at load/instantiate time, thus the need for a name.	825	that are attached at load/instantiate time, thus the need for a name.
461		826
462	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
463		828
464	=over 4	829	=over 4
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	938	$registry = $CB_TYPE[$object_type] ||= [];
574		939
575	} elsif ($type eq "subtype") {	940	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	941	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	942	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	943	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		944
580	} elsif ($type eq "package") {	945	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	946	my $pkg = shift @arg;
582		947
583	while (my ($name, $id) = each %cb_id) {	948	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
613	}	978	}
614		979
615	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
616	} else {	981	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	983	}
619		984
620	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
621	}	986	}
622		987
…		…
624	if (ref $_[0]) {	989	if (ref $_[0]) {
625	_object_attach @_;	990	_object_attach @_;
626	} else {	991	} else {
627	_attach shift->_attach_registry, @_;	992	_attach shift->_attach_registry, @_;
628	}	993	}
		994	_recalc_want;
629	};	995	};
630		996
631	# all those should be optimised	997	# all those should be optimised
632	sub cf::attachable::detach {	998	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	999	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	1002	delete $obj->{_attachment}{$name};
637	reattach ($obj);	1003	reattach ($obj);
638	} else {	1004	} else {
639	Carp::croak "cannot, currently, detach class attachments";	1005	Carp::croak "cannot, currently, detach class attachments";
640	}	1006	}
		1007	_recalc_want;
641	};	1008	};
642		1009
643	sub cf::attachable::attached {	1010	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	1011	my ($obj, $name) = @_;
645		1012
…		…
660	";	1027	";
661	die if $@;	1028	die if $@;
662	}	1029	}
663		1030
664	our $override;	1031	our $override;
665	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?
666		1033
667	sub override {	1034	sub override {
668	$override = 1;	1035	$override = 1;
669	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
670	}	1037	}
671		1038
672	sub do_invoke {	1039	sub do_invoke {
673	my $event = shift;	1040	my $event = shift;
674	my $callbacks = shift;	1041	my $callbacks = shift;
675		1042
676	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
677		1044
678	local $override;	1045	local $override;
679		1046
680	for (@$callbacks) {	1047	for (@$callbacks) {
681	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
690	}	1057	}
691		1058
692	0	1059	0
693	}	1060	}
694		1061
695	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
696		1063
697	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
698		1065
699	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
700		1067
701	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
702	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
703	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		1071
705	=back	1072	=back
706		1073
707	=cut	1074	=cut
708		1075
709	#############################################################################	1076	#############################################################################
710	# 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, $ob2
		1119	}
711		1120
712	sub reattach {	1121	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	1123	my ($obj) = @_;
715		1124
		1125	# no longer needed after getting rid of delete_package?
716	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
717		1127
718	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
719		1129
720	@$registry = ();	1130	@$registry = ();
721		1131
…		…
736	cf::attachable->attach (	1146	cf::attachable->attach (
737	prio => -1000000,	1147	prio => -1000000,
738	on_instantiate => sub {	1148	on_instantiate => sub {
739	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
740		1150
741	$data = from_json $data;	1151	$data = decode_json $data;
742		1152
743	for (@$data) {	1153	for (@$data) {
744	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
745		1155
746	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
762	sub object_freezer_save {	1172	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
764		1174
765	sync_job {	1175	sync_job {
766	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
769		1180
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	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	}
774	close $fh;	1188	aio_close $fh;
775		1189
776	if (@$objs) {	1190	if (@$objs) {
777	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) {
778	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1194	aio_write $fh, 0, (length $data), $data, 0;
781	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	}
782	close $fh;	1199	aio_close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
784	}	1201	}
785	} else {	1202	} else {
786	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
787	}	1204	}
788		1205
789	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
790	} else {	1210	} else {
791	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
792	}	1212	}
793	} else {	1213	} else {
794	aio_unlink $filename;	1214	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
796	}	1216	}
797	}	1217	};
798	}	1218	}
799		1219
800	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
802		1222
…		…
814	or return;	1234	or return;
815		1235
816	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
818	or return;	1238	or return;
		1239
819	$av = eval { (Storable::thaw $av)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
820	}	1242	}
821		1243
		1244	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1245	warn sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1246	$decname, length $data, scalar @{$av || []};
		1247
824	return ($data, $av);	1248	($data, $av)
825	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
826		1256
827	#############################################################################	1257	#############################################################################
828	# command handling &c	1258	# command handling &c
829		1259
830	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1274	}
845		1275
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1277
848	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.
849		1283
850	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
851	called.	1285	called.
852		1286
		1287	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1288
		1289	Register a callback for execution when the client sends an (asynchronous)
		1290	exticmd packet. Exti commands are processed by the server as soon as they
		1291	are received, i.e. out of order w.r.t. other commands. The first argument
		1292	is a client socket. Exti commands can be received anytime, even before
		1293	log-in.
		1294
		1295	If the callback returns something, it is sent back as if reply was being
		1296	called.
		1297
853	=cut	1298	=cut
854		1299
855	sub register_extcmd {	1300	sub register_extcmd {
856	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
857		1302
858	$EXTCMD{$name} = $cb;	1303	$EXTCMD{$name} = $cb;
859	}	1304	}
		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
860		1313
861	cf::player->attach (	1314	cf::player->attach (
862	on_command => sub {	1315	on_command => sub {
863	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
864		1317
…		…
872	cf::override;	1325	cf::override;
873	},	1326	},
874	on_extcmd => sub {	1327	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
876		1329
877	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1331
879	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
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
882	$pl->ext_reply ($msg->{msgid}, %reply);
883	}
884	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
885	} else {	1347	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1349	}
888		1350
889	cf::override;	1351	cf::override;
890	},	1352	},
891	);	1353	);
892		1354
		1355	# "readahead" all extensions
893	sub load_extension {	1356	sub cache_extensions {
894	my ($path) = @_;	1357	my $grp = IO::AIO::aio_group;
895		1358
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
897	my $base = $1;	1360	for (grep /\.ext$/, @{$_[0]}) {
898	my $pkg = $1;	1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
899	$pkg =~ s/[^[:word:]]/_/g;
900	$pkg = "ext::$pkg";
901
902	warn "... loading '$path' into '$pkg'\n";
903
904	open my $fh, "<:utf8", $path
905	or die "$path: $!";
906
907	my $source =
908	"package $pkg; use strict; use utf8;\n"
909	. "#line 1 \"$path\"\n{\n"
910	. (do { local $/; <$fh> })
911	. "\n};\n1";
912
913	unless (eval $source) {
914	my $msg = $@ ? "$path: $@\n"
915	: "extension disabled.\n";
916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
917	warn $@;
918	warn "mandatory extension failed to load, exiting.\n";
919	exit 1;
920	}	1362	}
921	die $@;
922	}	1363	};
923		1364
924	push @EXTS, $pkg;	1365	$grp
925	}	1366	}
926		1367
927	sub load_extensions {	1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
928	for my $ext (<$LIBDIR/*.ext>) {	1372	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1373	next unless -r $path;
930	eval {	1374
931	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 $active;
		1434	}
932	1	1435	}
933	} or warn "$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	}
934	}	1446	};
935	}	1447	}
936		1448
937	#############################################################################	1449	#############################################################################
938		1450
		1451	=back
		1452
939	=head2 CORE EXTENSIONS	1453	=head2 CORE EXTENSIONS
940		1454
941	Functions and methods that extend core crossfire objects.	1455	Functions and methods that extend core deliantra objects.
942		1456
943	=cut	1457	=cut
944		1458
945	package cf::player;	1459	package cf::player;
946		1460
…		…
948		1462
949	=head3 cf::player	1463	=head3 cf::player
950		1464
951	=over 4	1465	=over 4
952		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
953	=item cf::player::find $login	1481	=item cf::player::find $login
954		1482
955	Returns the given player object, loading it if necessary (might block).	1483	Returns the given player object, loading it if necessary (might block).
956		1484
957	=cut	1485	=cut
958		1486
959	sub playerdir($) {	1487	sub playerdir($) {
960	cf::localdir	1488	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1489	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1490	}
966		1491
967	sub path($) {	1492	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1493	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
978		1503
979	sub exists($) {	1504	sub exists($) {
980	my ($login) = @_;	1505	my ($login) = @_;
981		1506
982	$cf::PLAYER{$login}	1507	$cf::PLAYER{$login}
983	or cf::sync_job { !aio_stat path $login }	1508	or !aio_stat path $login
984	}	1509	}
985		1510
986	sub find($) {	1511	sub find($) {
987	return $cf::PLAYER{$_[0]} || do {	1512	return $cf::PLAYER{$_[0]} || do {
988	my $login = $_[0];	1513	my $login = $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1520	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1521	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1522	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1523	aio_unlink +(playerdir $login) . "/$login.pl";
999		1524
1000	my $pl = load_pl path $login	1525	my $f = new_from_file cf::object::thawer path $login
1001	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;
1002	$cf::PLAYER{$login} = $pl	1533	$cf::PLAYER{$login} = $pl
1003	}	1534	}
1004	}	1535	}
1005	}	1536	}
1006		1537
…		…
1015	return if $pl->{deny_save};	1546	return if $pl->{deny_save};
1016		1547
1017	aio_mkdir playerdir $pl, 0770;	1548	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1549	$pl->{last_save} = $cf::RUNTIME;
1019		1550
		1551	cf::get_slot 0.01;
		1552
1020	$pl->save_pl ($path);	1553	$pl->save_pl ($path);
1021	Coro::cede;	1554	cf::cede_to_tick;
1022	}	1555	}
1023		1556
1024	sub new($) {	1557	sub new($) {
1025	my ($login) = @_;	1558	my ($login) = @_;
1026		1559
…		…
1032	$cf::PLAYER{$login} = $self;	1565	$cf::PLAYER{$login} = $self;
1033		1566
1034	$self	1567	$self
1035	}	1568	}
1036		1569
		1570	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1571
		1572	=cut
		1573
		1574	sub send_msg {
		1575	my $ns = shift->ns
		1576	or return;
		1577	$ns->send_msg (@_);
		1578	}
		1579
1037	=item $pl->quit_character	1580	=item $pl->quit_character
1038		1581
1039	Nukes the player without looking back. If logged in, the connection will	1582	Nukes the player without looking back. If logged in, the connection will
1040	be destroyed. May block for a long time.	1583	be destroyed. May block for a long time.
1041		1584
…		…
1045	my ($pl) = @_;	1588	my ($pl) = @_;
1046		1589
1047	my $name = $pl->ob->name;	1590	my $name = $pl->ob->name;
1048		1591
1049	$pl->{deny_save} = 1;	1592	$pl->{deny_save} = 1;
1050	$pl->password ("*"); # this should lock out the player until we nuked the dir	1593	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1051		1594
1052	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1595	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1053	$pl->deactivate;	1596	$pl->deactivate;
		1597	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1598	$pl->ob->check_score;
1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1599	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1055	$pl->ns->destroy if $pl->ns;	1600	$pl->ns->destroy if $pl->ns;
1056		1601
1057	my $path = playerdir $pl;	1602	my $path = playerdir $pl;
1058	my $temp = "$path~$cf::RUNTIME~deleting~";	1603	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1088	while and may block, so not sync_job-capable, ever.	1633	while and may block, so not sync_job-capable, ever.
1089		1634
1090	=cut	1635	=cut
1091		1636
1092	sub list_logins {	1637	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1638	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1639	or return [];
1095		1640
1096	my @logins;	1641	my @logins;
1097		1642
1098	for my $login (@$dirs) {	1643	for my $login (@$dirs) {
		1644	my $path = path $login;
		1645
		1646	# a .pst is a dead give-away for a valid player
		1647	# if no pst file found, open and chekc for blocked users
		1648	if (aio_stat "$path.pst") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1649	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1650	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1651	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1652	}
1102		1653
1103	utf8::decode $login;	1654	utf8::decode $login;
1104	push @logins, $login;	1655	push @logins, $login;
1105	}	1656	}
1106		1657
…		…
1133	}	1684	}
1134		1685
1135	\@paths	1686	\@paths
1136	}	1687	}
1137		1688
		1689	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1690
		1691	Expand deliantra pod fragments into protocol xml.
		1692
1138	=item $player->ext_reply ($msgid, %msg)	1693	=item $player->ext_reply ($msgid, @msg)
1139		1694
1140	Sends an ext reply to the player.	1695	Sends an ext reply to the player.
1141		1696
1142	=cut	1697	=cut
1143		1698
1144	sub ext_reply($$%) {	1699	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1700	my ($self, $id, @msg) = @_;
1146		1701
1147	$msg{msgid} = $id;	1702	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1703	}
1151		1704
1152	=item $player->ext_event ($type, %msg)	1705	=item $player->ext_msg ($type, @msg)
1153		1706
1154	Sends an ext event to the client.	1707	Sends an ext event to the client.
1155		1708
1156	=cut	1709	=cut
1157		1710
1158	sub ext_event($$%) {	1711	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1712	my ($self, $type, @msg) = @_;
1160		1713
1161	$self->ns->ext_event ($type, %msg);	1714	$self->ns->ext_msg ($type, @msg);
1162	}	1715	}
1163		1716
1164	=head3 cf::region	1717	=head3 cf::region
1165		1718
1166	=over 4	1719	=over 4
…		…
1169		1722
1170	package cf::region;	1723	package cf::region;
1171		1724
1172	=item cf::region::find_by_path $path	1725	=item cf::region::find_by_path $path
1173		1726
1174	Tries to decuce the probable region for a map knowing only its path.	1727	Tries to decuce the likely region for a map knowing only its path.
1175		1728
1176	=cut	1729	=cut
1177		1730
1178	sub find_by_path($) {	1731	sub find_by_path($) {
1179	my ($path) = @_;	1732	my ($path) = @_;
1180		1733
1181	my ($match, $specificity);	1734	my ($match, $specificity);
1182		1735
1183	for my $region (list) {	1736	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1737	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1738	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1739	if $region->specificity > $specificity;
1187	}	1740	}
1188	}	1741	}
1189		1742
…		…
1210	our $MAX_RESET = 3600;	1763	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1764	our $DEFAULT_RESET = 3000;
1212		1765
1213	sub generate_random_map {	1766	sub generate_random_map {
1214	my ($self, $rmp) = @_;	1767	my ($self, $rmp) = @_;
		1768
		1769	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1770
1215	# mit "rum" bekleckern, nicht	1771	# mit "rum" bekleckern, nicht
1216	$self->_create_random_map (	1772	$self->_create_random_map (
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1773	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1774	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1775	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1253	my ($self, $merge) = @_;	1809	my ($self, $merge) = @_;
1254		1810
1255	# we have to keep some variables in memory intact	1811	# we have to keep some variables in memory intact
1256	local $self->{path};	1812	local $self->{path};
1257	local $self->{load_path};	1813	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1814
1261	$self->SUPER::thawer_merge ($merge);	1815	$self->SUPER::thawer_merge ($merge);
1262	}	1816	}
1263		1817
1264	sub normalise {	1818	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1865	$self->init; # pass $1 etc.
1312	return $self;	1866	return $self;
1313	}	1867	}
1314	}	1868	}
1315		1869
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1870	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1871	()
1318	}	1872	}
1319		1873
1320	sub init {	1874	sub init {
1321	my ($self) = @_;	1875	my ($self) = @_;
…		…
1336		1890
1337	# the original (read-only) location	1891	# the original (read-only) location
1338	sub load_path {	1892	sub load_path {
1339	my ($self) = @_;	1893	my ($self) = @_;
1340		1894
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1895	"$MAPDIR/$self->{path}.map"
1342	}	1896	}
1343		1897
1344	# the temporary/swap location	1898	# the temporary/swap location
1345	sub save_path {	1899	sub save_path {
1346	my ($self) = @_;	1900	my ($self) = @_;
1347		1901
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1902	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1903	"$TMPDIR/$path.map"
1350	}	1904	}
1351		1905
1352	# the unique path, undef == no special unique path	1906	# the unique path, undef == no special unique path
1353	sub uniq_path {	1907	sub uniq_path {
1354	my ($self) = @_;	1908	my ($self) = @_;
1355		1909
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1910	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1911	"$UNIQUEDIR/$path"
1358	}	1912	}
1359		1913
1360	# and all this just because we cannot iterate over	1914	sub decay_objects {
1361	# all maps in C++...
1362	sub change_all_map_light {
1363	my ($change) = @_;	1915	my ($self) = @_;
1364		1916
1365	$_->change_map_light ($change)	1917	return if $self->{deny_reset};
1366	for grep $_->outdoor, values %cf::MAP;	1918
		1919	$self->do_decay_objects;
1367	}	1920	}
1368		1921
1369	sub unlink_save {	1922	sub unlink_save {
1370	my ($self) = @_;	1923	my ($self) = @_;
1371		1924
…		…
1376		1929
1377	sub load_header_from($) {	1930	sub load_header_from($) {
1378	my ($self, $path) = @_;	1931	my ($self, $path) = @_;
1379		1932
1380	utf8::encode $path;	1933	utf8::encode $path;
1381	#aio_open $path, O_RDONLY, 0	1934	my $f = new_from_file cf::object::thawer $path
1382	# or return;
1383
1384	$self->_load_header ($path)
1385	or return;	1935	or return;
		1936
		1937	$self->_load_header ($f)
		1938	or return;
		1939
		1940	local $MAP_LOADING{$self->{path}} = $self;
		1941	$f->resolve_delayed_derefs;
1386		1942
1387	$self->{load_path} = $path;	1943	$self->{load_path} = $path;
1388		1944
1389	1	1945	1
1390	}	1946	}
…		…
1429	$self->load_header_orig	1985	$self->load_header_orig
1430	or return;	1986	or return;
1431	$self->prepare_orig;	1987	$self->prepare_orig;
1432	}	1988	}
1433		1989
		1990	$self->{deny_reset} = 1
		1991	if $self->no_reset;
		1992
1434	$self->default_region (cf::region::find_by_path $self->{path})	1993	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1994	unless $self->default_region;
1436		1995
1437	1	1996	1
1438	}	1997	}
…		…
1441	sub find {	2000	sub find {
1442	my ($path, $origin) = @_;	2001	my ($path, $origin) = @_;
1443		2002
1444	$path = normalise $path, $origin && $origin->path;	2003	$path = normalise $path, $origin && $origin->path;
1445		2004
		2005	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1446	cf::lock_wait "map_find:$path";	2006	my $guard2 = cf::lock_acquire "map_find:$path";
1447		2007
1448	$cf::MAP{$path} || do {	2008	$cf::MAP{$path} || do {
1449	my $guard = cf::lock_acquire "map_find:$path";
1450	my $map = new_from_path cf::map $path	2009	my $map = new_from_path cf::map $path
1451	or return;	2010	or return;
1452		2011
1453	$map->{last_save} = $cf::RUNTIME;	2012	$map->{last_save} = $cf::RUNTIME;
1454		2013
1455	$map->load_header	2014	$map->load_header
1456	or return;	2015	or return;
1457		2016
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2017	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	2018	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	2019	#$cf::WAIT_FOR_TICK->wait;
		2020	undef $guard2;
		2021	undef $guard1;
1461	$map->reset;	2022	$map->reset;
1462	undef $guard;
1463	return find $path;	2023	return find $path;
1464	}	2024	}
1465		2025
1466	$cf::MAP{$path} = $map	2026	$cf::MAP{$path} = $map
1467	}	2027	}
1468	}	2028	}
1469		2029
1470	sub pre_load { }	2030	sub pre_load { }
1471	sub post_load { }	2031	#sub post_load { } # XS
1472		2032
1473	sub load {	2033	sub load {
1474	my ($self) = @_;	2034	my ($self) = @_;
1475		2035
1476	local $self->{deny_reset} = 1; # loading can take a long time	2036	local $self->{deny_reset} = 1; # loading can take a long time
1477		2037
1478	my $path = $self->{path};	2038	my $path = $self->{path};
		2039
		2040	{
1479	my $guard = cf::lock_acquire "map_load:$path";	2041	my $guard = cf::lock_acquire "map_data:$path";
1480		2042
		2043	return unless $self->valid;
1481	return if $self->in_memory != cf::MAP_SWAPPED;	2044	return unless $self->in_memory == cf::MAP_SWAPPED;
1482		2045
1483	$self->in_memory (cf::MAP_LOADING);	2046	$self->in_memory (cf::MAP_LOADING);
1484		2047
1485	$self->alloc;	2048	$self->alloc;
1486		2049
1487	$self->pre_load;	2050	$self->pre_load;
1488	Coro::cede;	2051	cf::cede_to_tick;
1489		2052
1490	$self->_load_objects ($self->{load_path}, 1)	2053	my $f = new_from_file cf::object::thawer $self->{load_path};
		2054	$f->skip_block;
		2055	$self->_load_objects ($f)
1491	or return;	2056	or return;
1492		2057
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2058	$self->post_load_original
1494	if delete $self->{load_original};	2059	if delete $self->{load_original};
1495		2060
1496	if (my $uniq = $self->uniq_path) {	2061	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;	2062	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {	2063	unless (aio_stat $uniq) {
		2064	if (my $f = new_from_file cf::object::thawer $uniq) {
1499	$self->clear_unique_items;	2065	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);	2066	$self->_load_objects ($f);
		2067	$f->resolve_delayed_derefs;
		2068	}
1501	}	2069	}
1502	}	2070	}
1503		2071
1504	Coro::cede;	2072	$f->resolve_delayed_derefs;
		2073
		2074	cf::cede_to_tick;
1505	# now do the right thing for maps	2075	# now do the right thing for maps
1506	$self->link_multipart_objects;	2076	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($self->{deny_activate}) {
1510	$self->decay_objects;
1511	$self->fix_auto_apply;
1512	$self->update_buttons;
1513	Coro::cede;
1514	$self->set_darkness_map;
1515	$self->difficulty ($self->estimate_difficulty)	2077	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	2078	unless $self->difficulty;
1517	Coro::cede;	2079	cf::cede_to_tick;
		2080
		2081	unless ($self->{deny_activate}) {
		2082	$self->decay_objects;
		2083	$self->fix_auto_apply;
		2084	$self->update_buttons;
		2085	cf::cede_to_tick;
1518	$self->activate;	2086	$self->activate;
1519	Coro::cede;	2087	}
		2088
		2089	$self->{last_save} = $cf::RUNTIME;
		2090	$self->last_access ($cf::RUNTIME);
		2091
		2092	$self->in_memory (cf::MAP_ACTIVE);
1520	}	2093	}
1521		2094
1522	$self->post_load;	2095	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	2096	}
1527		2097
1528	sub customise_for {	2098	sub customise_for {
1529	my ($self, $ob) = @_;	2099	my ($self, $ob) = @_;
1530		2100
1531	return find "~" . $ob->name . "/" . $self->{path}	2101	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	2102	if $self->per_player;
1533		2103
		2104	# return find "?party/" . $ob->name . "/" . $self->{path}
		2105	# if $self->per_party;
		2106
1534	$self	2107	$self
1535	}	2108	}
1536		2109
1537	# find and load all maps in the 3x3 area around a map	2110	# find and load all maps in the 3x3 area around a map
1538	sub load_diag {	2111	sub load_neighbours {
1539	my ($map) = @_;	2112	my ($map) = @_;
1540		2113
1541	my @diag; # diagonal neighbours	2114	my @neigh; # diagonal neighbours
1542		2115
1543	for (0 .. 3) {	2116	for (0 .. 3) {
1544	my $neigh = $map->tile_path ($_)	2117	my $neigh = $map->tile_path ($_)
1545	or next;	2118	or next;
1546	$neigh = find $neigh, $map	2119	$neigh = find $neigh, $map
1547	or next;	2120	or next;
1548	$neigh->load;	2121	$neigh->load;
1549		2122
		2123	push @neigh,
1550	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2124	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1551	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2125	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1552	}	2126	}
1553		2127
1554	for (@diag) {	2128	for (grep defined $_->[0], @neigh) {
		2129	my ($path, $origin) = @$_;
1555	my $neigh = find @$_	2130	my $neigh = find $path, $origin
1556	or next;	2131	or next;
1557	$neigh->load;	2132	$neigh->load;
1558	}	2133	}
1559	}	2134	}
1560		2135
…		…
1565	}	2140	}
1566		2141
1567	sub do_load_sync {	2142	sub do_load_sync {
1568	my ($map) = @_;	2143	my ($map) = @_;
1569		2144
		2145	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2146	if $Coro::current == $Coro::main;
		2147
1570	cf::sync_job { $map->load };	2148	cf::sync_job { $map->load };
1571	}	2149	}
1572		2150
1573	our %MAP_PREFETCH;	2151	our %MAP_PREFETCH;
1574	our $MAP_PREFETCHER = undef;	2152	our $MAP_PREFETCHER = undef;
1575		2153
1576	sub find_async {	2154	sub find_async {
1577	my ($path, $origin) = @_;	2155	my ($path, $origin, $load) = @_;
1578		2156
1579	$path = normalise $path, $origin && $origin->{path};	2157	$path = normalise $path, $origin && $origin->{path};
1580		2158
1581	if (my $map = $cf::MAP{$path}) {	2159	if (my $map = $cf::MAP{$path}) {
1582	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2160	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1583	}	2161	}
1584		2162
1585	undef $MAP_PREFETCH{$path};	2163	$MAP_PREFETCH{$path} |= $load;
		2164
1586	$MAP_PREFETCHER ||= cf::async {	2165	$MAP_PREFETCHER ||= cf::async {
		2166	$Coro::current->{desc} = "map prefetcher";
		2167
1587	while (%MAP_PREFETCH) {	2168	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	2169	while (my ($k, $v) = each %MAP_PREFETCH) {
1589	my $map = find $path	2170	if (my $map = find $k) {
1590	or next;
1591	$map->load;	2171	$map->load if $v;
		2172	}
1592		2173
1593	delete $MAP_PREFETCH{$path};	2174	delete $MAP_PREFETCH{$k};
1594	}	2175	}
1595	}	2176	}
1596	undef $MAP_PREFETCHER;	2177	undef $MAP_PREFETCHER;
1597	};	2178	};
1598	$MAP_PREFETCHER->prio (6);	2179	$MAP_PREFETCHER->prio (6);
…		…
1601	}	2182	}
1602		2183
1603	sub save {	2184	sub save {
1604	my ($self) = @_;	2185	my ($self) = @_;
1605		2186
1606	my $lock = cf::lock_acquire "map_data:" . $self->path;	2187	my $lock = cf::lock_acquire "map_data:$self->{path}";
1607		2188
1608	$self->{last_save} = $cf::RUNTIME;	2189	$self->{last_save} = $cf::RUNTIME;
1609		2190
1610	return unless $self->dirty;	2191	return unless $self->dirty;
1611		2192
…		…
1617	return if $self->{deny_save};	2198	return if $self->{deny_save};
1618		2199
1619	local $self->{last_access} = $self->last_access;#d#	2200	local $self->{last_access} = $self->last_access;#d#
1620		2201
1621	cf::async {	2202	cf::async {
		2203	$Coro::current->{desc} = "map player save";
1622	$_->contr->save for $self->players;	2204	$_->contr->save for $self->players;
1623	};	2205	};
		2206
		2207	cf::get_slot 0.02;
1624		2208
1625	if ($uniq) {	2209	if ($uniq) {
1626	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2210	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1627	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2211	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1628	} else {	2212	} else {
…		…
1634	my ($self) = @_;	2218	my ($self) = @_;
1635		2219
1636	# save first because save cedes	2220	# save first because save cedes
1637	$self->save;	2221	$self->save;
1638		2222
1639	my $lock = cf::lock_acquire "map_data:" . $self->path;	2223	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2224
1641	return if $self->players;	2225	return if $self->players;
1642	return if $self->in_memory != cf::MAP_IN_MEMORY;	2226	return if $self->in_memory != cf::MAP_ACTIVE;
1643	return if $self->{deny_save};	2227	return if $self->{deny_save};
1644		2228
		2229	$self->in_memory (cf::MAP_SWAPPED);
		2230
		2231	$self->deactivate;
		2232	$_->clear_links_to ($self) for values %cf::MAP;
1645	$self->clear;	2233	$self->clear;
1646	$self->in_memory (cf::MAP_SWAPPED);
1647	}	2234	}
1648		2235
1649	sub reset_at {	2236	sub reset_at {
1650	my ($self) = @_;	2237	my ($self) = @_;
1651		2238
1652	# TODO: safety, remove and allow resettable per-player maps	2239	# TODO: safety, remove and allow resettable per-player maps
1653	return 1e99 if $self->isa ("ext::map_per_player");#d#
1654	return 1e99 if $self->{deny_reset};	2240	return 1e99 if $self->{deny_reset};
1655		2241
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2242	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2243	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		2244
…		…
1669	my ($self) = @_;	2255	my ($self) = @_;
1670		2256
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2257	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2258
1673	return if $self->players;	2259	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2260
1676	warn "resetting map ", $self->path;#d#	2261	warn "resetting map ", $self->path, "\n";
1677		2262
1678	$self->in_memory (cf::MAP_SWAPPED);	2263	$self->in_memory (cf::MAP_SWAPPED);
1679		2264
1680	# need to save uniques path	2265	# need to save uniques path
1681	unless ($self->{deny_save}) {	2266	unless ($self->{deny_save}) {
…		…
1685	if $uniq;	2270	if $uniq;
1686	}	2271	}
1687		2272
1688	delete $cf::MAP{$self->path};	2273	delete $cf::MAP{$self->path};
1689		2274
		2275	$self->deactivate;
		2276	$_->clear_links_to ($self) for values %cf::MAP;
1690	$self->clear;	2277	$self->clear;
1691
1692	$_->clear_links_to ($self) for values %cf::MAP;
1693		2278
1694	$self->unlink_save;	2279	$self->unlink_save;
1695	$self->destroy;	2280	$self->destroy;
1696	}	2281	}
1697		2282
1698	my $nuke_counter = "aaaa";	2283	my $nuke_counter = "aaaa";
1699		2284
1700	sub nuke {	2285	sub nuke {
1701	my ($self) = @_;	2286	my ($self) = @_;
1702		2287
		2288	{
		2289	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2290
1703	delete $cf::MAP{$self->path};	2291	delete $cf::MAP{$self->path};
1704		2292
1705	$self->unlink_save;	2293	$self->unlink_save;
1706		2294
1707	bless $self, "cf::map";	2295	bless $self, "cf::map";
1708	delete $self->{deny_reset};	2296	delete $self->{deny_reset};
1709	$self->{deny_save} = 1;	2297	$self->{deny_save} = 1;
1710	$self->reset_timeout (1);	2298	$self->reset_timeout (1);
1711	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2299	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1712		2300
1713	$cf::MAP{$self->path} = $self;	2301	$cf::MAP{$self->path} = $self;
		2302	}
1714		2303
1715	$self->reset; # polite request, might not happen	2304	$self->reset; # polite request, might not happen
		2305	}
		2306
		2307	=item $maps = cf::map::tmp_maps
		2308
		2309	Returns an arrayref with all map paths of currently instantiated and saved
		2310	maps. May block.
		2311
		2312	=cut
		2313
		2314	sub tmp_maps() {
		2315	[
		2316	map {
		2317	utf8::decode $_;
		2318	/\.map$/
		2319	? normalise $_
		2320	: ()
		2321	} @{ aio_readdir $TMPDIR or [] }
		2322	]
		2323	}
		2324
		2325	=item $maps = cf::map::random_maps
		2326
		2327	Returns an arrayref with all map paths of currently instantiated and saved
		2328	random maps. May block.
		2329
		2330	=cut
		2331
		2332	sub random_maps() {
		2333	[
		2334	map {
		2335	utf8::decode $_;
		2336	/\.map$/
		2337	? normalise "?random/$_"
		2338	: ()
		2339	} @{ aio_readdir $RANDOMDIR or [] }
		2340	]
1716	}	2341	}
1717		2342
1718	=item cf::map::unique_maps	2343	=item cf::map::unique_maps
1719		2344
1720	Returns an arrayref of paths of all shared maps that have	2345	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2346	instantiated unique items. May block.
1722		2347
1723	=cut	2348	=cut
1724		2349
1725	sub unique_maps() {	2350	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2351	[
1727	or return;	2352	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2353	utf8::decode $_;
1733	next if /\.pst$/;	2354	s/\.map$//; # TODO future compatibility hack
1734	next unless /^$PATH_SEP/o;	2355	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1735		2356	? ()
1736	push @paths, cf::map::normalise $_;	2357	: normalise $_
		2358	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2359	]
1738
1739	\@paths
1740	}	2360	}
1741		2361
1742	package cf;	2362	=item cf::map::static_maps
		2363
		2364	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2365	file in the shared directory excluding F</styles> and F</editor>). May
		2366	block.
		2367
		2368	=cut
		2369
		2370	sub static_maps() {
		2371	my @dirs = "";
		2372	my @maps;
		2373
		2374	while (@dirs) {
		2375	my $dir = shift @dirs;
		2376
		2377	next if $dir eq "/styles" || $dir eq "/editor";
		2378
		2379	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2380	or return;
		2381
		2382	for (@$files) {
		2383	s/\.map$// or next;
		2384	utf8::decode $_;
		2385	push @maps, "$dir/$_";
		2386	}
		2387
		2388	push @dirs, map "$dir/$_", @$dirs;
		2389	}
		2390
		2391	\@maps
		2392	}
1743		2393
1744	=back	2394	=back
1745		2395
1746	=head3 cf::object	2396	=head3 cf::object
1747		2397
…		…
1751		2401
1752	=over 4	2402	=over 4
1753		2403
1754	=item $ob->inv_recursive	2404	=item $ob->inv_recursive
1755		2405
1756	Returns the inventory of the object _and_ their inventories, recursively.	2406	Returns the inventory of the object I<and> their inventories, recursively,
		2407	but I<not> the object itself.
1757		2408
1758	=cut	2409	=cut
1759		2410
1760	sub inv_recursive_;	2411	sub inv_recursive_;
1761	sub inv_recursive_ {	2412	sub inv_recursive_ {
…		…
1764		2415
1765	sub inv_recursive {	2416	sub inv_recursive {
1766	inv_recursive_ inv $_[0]	2417	inv_recursive_ inv $_[0]
1767	}	2418	}
1768		2419
		2420	=item $ref = $ob->ref
		2421
		2422	Creates and returns a persistent reference to an object that can be stored as a string.
		2423
		2424	=item $ob = cf::object::deref ($refstring)
		2425
		2426	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2427	even if the object actually exists. May block.
		2428
		2429	=cut
		2430
		2431	sub deref {
		2432	my ($ref) = @_;
		2433
		2434	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2435	my ($uuid, $name) = ($1, $2);
		2436	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2437	or return;
		2438	$pl->ob->uuid eq $uuid
		2439	or return;
		2440
		2441	$pl->ob
		2442	} else {
		2443	warn "$ref: cannot resolve object reference\n";
		2444	undef
		2445	}
		2446	}
		2447
1769	package cf;	2448	package cf;
1770		2449
1771	=back	2450	=back
1772		2451
1773	=head3 cf::object::player	2452	=head3 cf::object::player
…		…
1779	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2458	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1780	can be C<undef>. Does the right thing when the player is currently in a	2459	can be C<undef>. Does the right thing when the player is currently in a
1781	dialogue with the given NPC character.	2460	dialogue with the given NPC character.
1782		2461
1783	=cut	2462	=cut
		2463
		2464	our $SAY_CHANNEL = {
		2465	id => "say",
		2466	title => "Map",
		2467	reply => "say ",
		2468	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2469	};
		2470
		2471	our $CHAT_CHANNEL = {
		2472	id => "chat",
		2473	title => "Chat",
		2474	reply => "chat ",
		2475	tooltip => "Player chat and shouts, global to the server.",
		2476	};
1784		2477
1785	# rough implementation of a future "reply" method that works	2478	# rough implementation of a future "reply" method that works
1786	# with dialog boxes.	2479	# with dialog boxes.
1787	#TODO: the first argument must go, split into a $npc->reply_to ( method	2480	#TODO: the first argument must go, split into a $npc->reply_to ( method
1788	sub cf::object::player::reply($$$;$) {	2481	sub cf::object::player::reply($$$;$) {
…		…
1790		2483
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2484	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2485
1793	if ($self->{record_replies}) {	2486	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2487	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2488
1795	} else {	2489	} else {
		2490	my $pl = $self->contr;
		2491
		2492	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2493	my $dialog = $pl->{npc_dialog};
		2494	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2495
		2496	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2497	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2498	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2499	}
1798	}	2500	}
		2501	}
		2502
		2503	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2504
		2505	=cut
		2506
		2507	sub cf::object::send_msg {
		2508	my $pl = shift->contr
		2509	or return;
		2510	$pl->send_msg (@_);
1799	}	2511	}
1800		2512
1801	=item $player_object->may ("access")	2513	=item $player_object->may ("access")
1802		2514
1803	Returns wether the given player is authorized to access resource "access"	2515	Returns wether the given player is authorized to access resource "access"
…		…
1816		2528
1817	=item $player_object->enter_link	2529	=item $player_object->enter_link
1818		2530
1819	Freezes the player and moves him/her to a special map (C<{link}>).	2531	Freezes the player and moves him/her to a special map (C<{link}>).
1820		2532
1821	The player should be reasonably safe there for short amounts of time. You	2533	The player should be reasonably safe there for short amounts of time (e.g.
1822	I<MUST> call C<leave_link> as soon as possible, though.	2534	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2535	though, as the palyer cannot control the character while it is on the link
		2536	map.
1823		2537
1824	Will never block.	2538	Will never block.
1825		2539
1826	=item $player_object->leave_link ($map, $x, $y)	2540	=item $player_object->leave_link ($map, $x, $y)
1827		2541
…		…
1850	$self->deactivate_recursive;	2564	$self->deactivate_recursive;
1851		2565
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2566	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2567
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2568	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2569	if $self->map && $self->map->{path} ne "{link}";
1856		2570
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2571	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2572	}
1859		2573
1860	sub cf::object::player::leave_link {	2574	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2575	my ($self, $map, $x, $y) = @_;
		2576
		2577	return unless $self->contr->active;
1862		2578
1863	my $link_pos = delete $self->{_link_pos};	2579	my $link_pos = delete $self->{_link_pos};
1864		2580
1865	unless ($map) {	2581	unless ($map) {
1866	# restore original map position	2582	# restore original map position
…		…
1877	($x, $y) = (-1, -1)	2593	($x, $y) = (-1, -1)
1878	unless (defined $x) && (defined $y);	2594	unless (defined $x) && (defined $y);
1879		2595
1880	# use -1 or undef as default coordinates, not 0, 0	2596	# use -1 or undef as default coordinates, not 0, 0
1881	($x, $y) = ($map->enter_x, $map->enter_y)	2597	($x, $y) = ($map->enter_x, $map->enter_y)
1882	if $x <=0 && $y <= 0;	2598	if $x <= 0 && $y <= 0;
1883		2599
1884	$map->load;	2600	$map->load;
1885	$map->load_diag;	2601	$map->load_neighbours;
1886		2602
1887	return unless $self->contr->active;	2603	return unless $self->contr->active;
1888	$self->activate_recursive;
1889		2604
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2605	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2606	$self->enter_map ($map, $x, $y);
1892	}
1893		2607
1894	cf::player->attach (	2608	# only activate afterwards, to support waiting in hooks
1895	on_logout => sub {	2609	$self->activate_recursive;
1896	my ($pl) = @_;	2610	}
1897		2611
1898	# abort map switching before logout	2612	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1899	if ($pl->ob->{_link_pos}) {
1900	cf::sync_job {
1901	$pl->ob->leave_link
1902	};
1903	}
1904	},
1905	on_login => sub {
1906	my ($pl) = @_;
1907		2613
1908	# try to abort aborted map switching on player login :)	2614	Moves the player to the given map-path and coordinates by first freezing
1909	# should happen only on crashes	2615	her, loading and preparing them map, calling the provided $check callback
1910	if ($pl->ob->{_link_pos}) {	2616	that has to return the map if sucecssful, and then unfreezes the player on
1911	$pl->ob->enter_link;	2617	the new (success) or old (failed) map position. In either case, $done will
1912	(async {	2618	be called at the end of this process.
1913	$pl->ob->reply (undef,
1914	"There was an internal problem at your last logout, "
1915	. "the server will try to bring you to your intended destination in a second.",
1916	cf::NDI_RED);
1917	# we need this sleep as the login has a concurrent enter_exit running
1918	# and this sleep increases chances of the player not ending up in scorn
1919	Coro::Timer::sleep 1;
1920	$pl->ob->leave_link;
1921	})->prio (2);
1922	}
1923	},
1924	);
1925		2619
1926	=item $player_object->goto ($path, $x, $y)	2620	Note that $check will be called with a potentially non-loaded map, so if
		2621	it needs a loaded map it has to call C<< ->load >>.
1927		2622
1928	=cut	2623	=cut
		2624
		2625	our $GOTOGEN;
1929		2626
1930	sub cf::object::player::goto {	2627	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2628	my ($self, $path, $x, $y, $check, $done) = @_;
		2629
		2630	# do generation counting so two concurrent goto's will be executed in-order
		2631	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2632
1933	$self->enter_link;	2633	$self->enter_link;
1934		2634
1935	(async {	2635	(async {
		2636	$Coro::current->{desc} = "player::goto $path $x $y";
		2637
		2638	# *tag paths override both path and x|y
		2639	if ($path =~ /^\*(.*)$/) {
		2640	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2641	my $ob = $obs[rand @obs];
		2642
		2643	# see if we actually can go there
		2644	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2645	$ob = $obs[rand @obs];
		2646	} else {
		2647	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2648	}
		2649	# else put us there anyways for now #d#
		2650
		2651	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2652	} else {
		2653	($path, $x, $y) = (undef, undef, undef);
		2654	}
		2655	}
		2656
1936	my $map = eval {	2657	my $map = eval {
1937	my $map = cf::map::find $path;	2658	my $map = defined $path ? cf::map::find $path : undef;
		2659
		2660	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2661	$map = $map->customise_for ($self);
		2662	$map = $check->($map) if $check && $map;
		2663	} else {
		2664	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2665	}
		2666
1939	$map	2667	$map
		2668	};
		2669
		2670	if ($@) {
		2671	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2672	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2673	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2674
		2675	if ($gen == $self->{_goto_generation}) {
		2676	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2677	$self->leave_link ($map, $x, $y);
		2678	}
		2679
		2680	$done->() if $done;
1944	})->prio (1);	2681	})->prio (1);
1945	}	2682	}
1946		2683
1947	=item $player_object->enter_exit ($exit_object)	2684	=item $player_object->enter_exit ($exit_object)
1948		2685
…		…
1968	}	2705	}
1969		2706
1970	sub prepare_random_map {	2707	sub prepare_random_map {
1971	my ($exit) = @_;	2708	my ($exit) = @_;
1972		2709
1973	my $guard = cf::lock_acquire "exit_prepare:$exit";
1974
1975	# all this does is basically replace the /! path by	2710	# all this does is basically replace the /! path by
1976	# a new random map path (?random/...) with a seed	2711	# a new random map path (?random/...) with a seed
1977	# that depends on the exit object	2712	# that depends on the exit object
1978		2713
1979	my $rmp = parse_random_map_params $exit->msg;	2714	my $rmp = parse_random_map_params $exit->msg;
…		…
1981	if ($exit->map) {	2716	if ($exit->map) {
1982	$rmp->{region} = $exit->region->name;	2717	$rmp->{region} = $exit->region->name;
1983	$rmp->{origin_map} = $exit->map->path;	2718	$rmp->{origin_map} = $exit->map->path;
1984	$rmp->{origin_x} = $exit->x;	2719	$rmp->{origin_x} = $exit->x;
1985	$rmp->{origin_y} = $exit->y;	2720	$rmp->{origin_y} = $exit->y;
		2721
		2722	$exit->map->touch;
1986	}	2723	}
1987		2724
1988	$rmp->{random_seed} ||= $exit->random_seed;	2725	$rmp->{random_seed} ||= $exit->random_seed;
1989		2726
1990	my $data = cf::to_json $rmp;	2727	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1991	my $md5 = Digest::MD5::md5_hex $data;	2728	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2729	my $meta = "$RANDOMDIR/$md5.meta";
1993		2730
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2731	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2732	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2733	undef $fh;
1997	aio_rename "$meta~", $meta;	2734	aio_rename "$meta~", $meta;
1998		2735
		2736	my $slaying = "?random/$md5";
		2737
		2738	if ($exit->valid) {
1999	$exit->slaying ("?random/$md5");	2739	$exit->slaying ("?random/$md5");
2000	$exit->msg (undef);	2740	$exit->msg (undef);
		2741	}
2001	}	2742	}
2002	}	2743	}
2003		2744
2004	sub cf::object::player::enter_exit {	2745	sub cf::object::player::enter_exit {
2005	my ($self, $exit) = @_;	2746	my ($self, $exit) = @_;
2006		2747
2007	return unless $self->type == cf::PLAYER;	2748	return unless $self->type == cf::PLAYER;
2008		2749
2009	if ($exit->slaying eq "/!") {
2010	#TODO: this should de-fi-ni-te-ly not be a sync-job
2011	# the problem is that $exit might not survive long enough
2012	# so it needs to be done right now, right here
2013	cf::sync_job { prepare_random_map $exit };
2014	}
2015
2016	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2017	my $hp = $exit->stats->hp;
2018	my $sp = $exit->stats->sp;
2019
2020	$self->enter_link;	2750	$self->enter_link;
2021		2751
2022	(async {	2752	(async {
2023	$self->deactivate_recursive; # just to be sure	2753	$Coro::current->{desc} = "enter_exit";
		2754
2024	unless (eval {	2755	unless (eval {
		2756	$self->deactivate_recursive; # just to be sure
		2757
		2758	# random map handling
		2759	{
		2760	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2761
		2762	prepare_random_map $exit
		2763	if $exit->slaying eq "/!";
		2764	}
		2765
		2766	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2767	my $x = $exit->stats->hp;
		2768	my $y = $exit->stats->sp;
		2769
2025	$self->goto ($slaying, $hp, $sp);	2770	$self->goto ($map, $x, $y);
2026		2771
		2772	# if exit is damned, update players death & WoR home-position
		2773	$self->contr->savebed ($map, $x, $y)
		2774	if $exit->flag (cf::FLAG_DAMNED);
		2775
2027	1;	2776	1
2028	}) {	2777	}) {
2029	$self->message ("Something went wrong deep within the crossfire server. "	2778	$self->message ("Something went wrong deep within the deliantra server. "
2030	. "I'll try to bring you back to the map you were before. "	2779	. "I'll try to bring you back to the map you were before. "
2031	. "Please report this to the dungeon master!",	2780	. "Please report this to the dungeon master!",
2032	cf::NDI_UNIQUE | cf::NDI_RED);	2781	cf::NDI_UNIQUE | cf::NDI_RED);
2033		2782
2034	warn "ERROR in enter_exit: $@";	2783	warn "ERROR in enter_exit: $@";
…		…
2053		2802
2054	utf8::encode $text;	2803	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2804	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2805	}
2057		2806
		2807	=item $client->send_big_packet ($pkt)
		2808
		2809	Like C<send_packet>, but tries to compress large packets, and fragments
		2810	them as required.
		2811
		2812	=cut
		2813
		2814	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2815
		2816	sub cf::client::send_big_packet {
		2817	my ($self, $pkt) = @_;
		2818
		2819	# try lzf for large packets
		2820	$pkt = "lzf " . Compress::LZF::compress $pkt
		2821	if 1024 <= length $pkt and $self->{can_lzf};
		2822
		2823	# split very large packets
		2824	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2825	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2826	$pkt = "frag";
		2827	}
		2828
		2829	$self->send_packet ($pkt);
		2830	}
		2831
		2832	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2833
		2834	Send a drawinfo or msg packet to the client, formatting the msg for the
		2835	client if neccessary. C<$type> should be a string identifying the type of
		2836	the message, with C<log> being the default. If C<$color> is negative, suppress
		2837	the message unless the client supports the msg packet.
		2838
		2839	=cut
		2840
		2841	# non-persistent channels (usually the info channel)
		2842	our %CHANNEL = (
		2843	"c/motd" => {
		2844	id => "infobox",
		2845	title => "MOTD",
		2846	reply => undef,
		2847	tooltip => "The message of the day",
		2848	},
		2849	"c/identify" => {
		2850	id => "infobox",
		2851	title => "Identify",
		2852	reply => undef,
		2853	tooltip => "Items recently identified",
		2854	},
		2855	"c/examine" => {
		2856	id => "infobox",
		2857	title => "Examine",
		2858	reply => undef,
		2859	tooltip => "Signs and other items you examined",
		2860	},
		2861	"c/shopinfo" => {
		2862	id => "infobox",
		2863	title => "Shop Info",
		2864	reply => undef,
		2865	tooltip => "What your bargaining skill tells you about the shop",
		2866	},
		2867	"c/book" => {
		2868	id => "infobox",
		2869	title => "Book",
		2870	reply => undef,
		2871	tooltip => "The contents of a note or book",
		2872	},
		2873	"c/lookat" => {
		2874	id => "infobox",
		2875	title => "Look",
		2876	reply => undef,
		2877	tooltip => "What you saw there",
		2878	},
		2879	"c/who" => {
		2880	id => "infobox",
		2881	title => "Players",
		2882	reply => undef,
		2883	tooltip => "Shows players who are currently online",
		2884	},
		2885	"c/body" => {
		2886	id => "infobox",
		2887	title => "Body Parts",
		2888	reply => undef,
		2889	tooltip => "Shows which body parts you posess and are available",
		2890	},
		2891	"c/statistics" => {
		2892	id => "infobox",
		2893	title => "Statistics",
		2894	reply => undef,
		2895	tooltip => "Shows your primary statistics",
		2896	},
		2897	"c/skills" => {
		2898	id => "infobox",
		2899	title => "Skills",
		2900	reply => undef,
		2901	tooltip => "Shows your experience per skill and item power",
		2902	},
		2903	"c/shopitems" => {
		2904	id => "infobox",
		2905	title => "Shop Items",
		2906	reply => undef,
		2907	tooltip => "Shows the items currently for sale in this shop",
		2908	},
		2909	"c/resistances" => {
		2910	id => "infobox",
		2911	title => "Resistances",
		2912	reply => undef,
		2913	tooltip => "Shows your resistances",
		2914	},
		2915	"c/pets" => {
		2916	id => "infobox",
		2917	title => "Pets",
		2918	reply => undef,
		2919	tooltip => "Shows information abotu your pets/a specific pet",
		2920	},
		2921	"c/perceiveself" => {
		2922	id => "infobox",
		2923	title => "Perceive Self",
		2924	reply => undef,
		2925	tooltip => "You gained detailed knowledge about yourself",
		2926	},
		2927	"c/uptime" => {
		2928	id => "infobox",
		2929	title => "Uptime",
		2930	reply => undef,
		2931	tooltip => "How long the server has been running since last restart",
		2932	},
		2933	"c/mapinfo" => {
		2934	id => "infobox",
		2935	title => "Map Info",
		2936	reply => undef,
		2937	tooltip => "Information related to the maps",
		2938	},
		2939	"c/party" => {
		2940	id => "party",
		2941	title => "Party",
		2942	reply => "gsay ",
		2943	tooltip => "Messages and chat related to your party",
		2944	},
		2945	"c/death" => {
		2946	id => "death",
		2947	title => "Death",
		2948	reply => undef,
		2949	tooltip => "Reason for and more info about your most recent death",
		2950	},
		2951	"c/say" => $SAY_CHANNEL,
		2952	"c/chat" => $CHAT_CHANNEL,
		2953	);
		2954
		2955	sub cf::client::send_msg {
		2956	my ($self, $channel, $msg, $color, @extra) = @_;
		2957
		2958	$msg = $self->pl->expand_cfpod ($msg)
		2959	unless $color & cf::NDI_VERBATIM;
		2960
		2961	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2962
		2963	# check predefined channels, for the benefit of C
		2964	if ($CHANNEL{$channel}) {
		2965	$channel = $CHANNEL{$channel};
		2966
		2967	$self->ext_msg (channel_info => $channel);
		2968	$channel = $channel->{id};
		2969
		2970	} elsif (ref $channel) {
		2971	# send meta info to client, if not yet sent
		2972	unless (exists $self->{channel}{$channel->{id}}) {
		2973	$self->{channel}{$channel->{id}} = $channel;
		2974	$self->ext_msg (channel_info => $channel);
		2975	}
		2976
		2977	$channel = $channel->{id};
		2978	}
		2979
		2980	return unless @extra || length $msg;
		2981
		2982	# default colour, mask it out
		2983	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2984	if $color & cf::NDI_DEF;
		2985
		2986	my $pkt = "msg "
		2987	. $self->{json_coder}->encode (
		2988	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2989	);
		2990
		2991	$self->send_big_packet ($pkt);
		2992	}
		2993
2058	=item $client->ext_event ($type, %msg)	2994	=item $client->ext_msg ($type, @msg)
2059		2995
2060	Sends an exti event to the client.	2996	Sends an ext event to the client.
2061		2997
2062	=cut	2998	=cut
2063		2999
2064	sub cf::client::ext_event($$%) {	3000	sub cf::client::ext_msg($$@) {
2065	my ($self, $type, %msg) = @_;	3001	my ($self, $type, @msg) = @_;
2066		3002
		3003	if ($self->extcmd == 2) {
		3004	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3005	} elsif ($self->extcmd == 1) { # TODO: remove
2067	$msg{msgtype} = "event_$type";	3006	push @msg, msgtype => "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	3007	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3008	}
		3009	}
		3010
		3011	=item $client->ext_reply ($msgid, @msg)
		3012
		3013	Sends an ext reply to the client.
		3014
		3015	=cut
		3016
		3017	sub cf::client::ext_reply($$@) {
		3018	my ($self, $id, @msg) = @_;
		3019
		3020	if ($self->extcmd == 2) {
		3021	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3022	} elsif ($self->extcmd == 1) {
		3023	#TODO: version 1, remove
		3024	unshift @msg, msgtype => "reply", msgid => $id;
		3025	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3026	}
2069	}	3027	}
2070		3028
2071	=item $success = $client->query ($flags, "text", \&cb)	3029	=item $success = $client->query ($flags, "text", \&cb)
2072		3030
2073	Queues a query to the client, calling the given callback with	3031	Queues a query to the client, calling the given callback with
2074	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3032	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3033	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		3034
2077	Queries can fail, so check the return code. Or don't, as queries will become	3035	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	3036	become reliable at some point in the future.
2079		3037
2080	=cut	3038	=cut
2081		3039
2082	sub cf::client::query {	3040	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	3041	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	3049	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3050	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		3051
2094	$self->send_packet ($self->{query_queue}[0][0])	3052	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	3053	if @{ $self->{query_queue} } == 1;
		3054
		3055	1
2096	}	3056	}
2097		3057
2098	cf::client->attach (	3058	cf::client->attach (
		3059	on_connect => sub {
		3060	my ($ns) = @_;
		3061
		3062	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3063	},
2099	on_reply => sub {	3064	on_reply => sub {
2100	my ($ns, $msg) = @_;	3065	my ($ns, $msg) = @_;
2101		3066
2102	# this weird shuffling is so that direct followup queries	3067	# this weird shuffling is so that direct followup queries
2103	# get handled first	3068	# get handled first
…		…
2115	} else {	3080	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3081	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	3082	}
2118	}	3083	}
2119	},	3084	},
		3085	on_exticmd => sub {
		3086	my ($ns, $buf) = @_;
		3087
		3088	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3089
		3090	if (ref $msg) {
		3091	my ($type, $reply, @payload) =
		3092	"ARRAY" eq ref $msg
		3093	? @$msg
		3094	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3095
		3096	my @reply;
		3097
		3098	if (my $cb = $EXTICMD{$type}) {
		3099	@reply = $cb->($ns, @payload);
		3100	}
		3101
		3102	$ns->ext_reply ($reply, @reply)
		3103	if $reply;
		3104
		3105	} else {
		3106	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3107	}
		3108
		3109	cf::override;
		3110	},
2120	);	3111	);
2121		3112
2122	=item $client->async (\&cb)	3113	=item $client->async (\&cb)
2123		3114
2124	Create a new coroutine, running the specified callback. The coroutine will	3115	Create a new coroutine, running the specified callback. The coroutine will
…		…
2165	our $safe = new Safe "safe";	3156	our $safe = new Safe "safe";
2166	our $safe_hole = new Safe::Hole;	3157	our $safe_hole = new Safe::Hole;
2167		3158
2168	$SIG{FPE} = 'IGNORE';	3159	$SIG{FPE} = 'IGNORE';
2169		3160
2170	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3161	$safe->permit_only (Opcode::opset qw(
		3162	:base_core :base_mem :base_orig :base_math :base_loop
		3163	grepstart grepwhile mapstart mapwhile
		3164	sort time
		3165	));
2171		3166
2172	# here we export the classes and methods available to script code	3167	# here we export the classes and methods available to script code
2173		3168
2174	=pod	3169	=pod
2175		3170
2176	The following functions and methods are available within a safe environment:	3171	The following functions and methods are available within a safe environment:
2177		3172
2178	cf::object contr pay_amount pay_player map	3173	cf::object
		3174	contr pay_amount pay_player map x y force_find force_add destroy
		3175	insert remove name archname title slaying race decrease split
		3176	value
		3177
2179	cf::object::player player	3178	cf::object::player
2180	cf::player peaceful	3179	player
2181	cf::map trigger	3180
		3181	cf::player
		3182	peaceful
		3183
		3184	cf::map
		3185	trigger
2182		3186
2183	=cut	3187	=cut
2184		3188
2185	for (	3189	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	3190	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3191	insert remove inv nrof name archname title slaying race
		3192	decrease split destroy change_exp value msg lore send_msg)],
2187	["cf::object::player" => qw(player)],	3193	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	3194	["cf::player" => qw(peaceful send_msg)],
2189	["cf::map" => qw(trigger)],	3195	["cf::map" => qw(trigger)],
2190	) {	3196	) {
2191	no strict 'refs';	3197	no strict 'refs';
2192	my ($pkg, @funs) = @$_;	3198	my ($pkg, @funs) = @$_;
2193	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3199	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2211		3217
2212	my $qcode = $code;	3218	my $qcode = $code;
2213	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3219	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2214	$qcode =~ s/\n/\\n/g;	3220	$qcode =~ s/\n/\\n/g;
2215		3221
		3222	%vars = (_dummy => 0) unless %vars;
		3223
		3224	my @res;
2216	local $_;	3225	local $_;
2217	local @safe::cf::_safe_eval_args = values %vars;
2218		3226
2219	my $eval =	3227	my $eval =
2220	"do {\n"	3228	"do {\n"
2221	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3229	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2222	. "#line 0 \"{$qcode}\"\n"	3230	. "#line 0 \"{$qcode}\"\n"
2223	. $code	3231	. $code
2224	. "\n}"	3232	. "\n}"
2225	;	3233	;
2226		3234
		3235	if ($CFG{safe_eval}) {
2227	sub_generation_inc;	3236	sub_generation_inc;
		3237	local @safe::cf::_safe_eval_args = values %vars;
2228	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3238	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2229	sub_generation_inc;	3239	sub_generation_inc;
		3240	} else {
		3241	local @cf::_safe_eval_args = values %vars;
		3242	@res = wantarray ? eval eval : scalar eval $eval;
		3243	}
2230		3244
2231	if ($@) {	3245	if ($@) {
2232	warn "$@";	3246	warn "$@";
2233	warn "while executing safe code '$code'\n";	3247	warn "while executing safe code '$code'\n";
2234	warn "with arguments " . (join " ", %vars) . "\n";	3248	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2253	=cut	3267	=cut
2254		3268
2255	sub register_script_function {	3269	sub register_script_function {
2256	my ($fun, $cb) = @_;	3270	my ($fun, $cb) = @_;
2257		3271
2258	no strict 'refs';	3272	$fun = "safe::$fun" if $CFG{safe_eval};
2259	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3273	*$fun = $safe_hole->wrap ($cb);
2260	}	3274	}
2261		3275
2262	=back	3276	=back
2263		3277
2264	=cut	3278	=cut
2265
2266	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$family> should best start with the name of the extension
2275	using it, it should be unique.
2276
2277	=over 4
2278
2279	=item $value = cf::db_get $family => $key
2280
2281	Returns a single value from the database.
2282
2283	=item cf::db_put $family => $key => $value
2284
2285	Stores the given C<$value> in the family.
2286
2287	=cut
2288
2289	our $DB;
2290
2291	sub db_init {
2292	unless ($DB) {
2293	$DB = BDB::db_create $DB_ENV;
2294
2295	cf::sync_job {
2296	eval {
2297	$DB->set_flags (BDB::CHKSUM);
2298
2299	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2300	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2301	cf::cleanup "db_open(db): $!" if $!;
2302	};
2303	cf::cleanup "db_open(db): $@" if $@;
2304	};
2305	}
2306	}
2307
2308	sub db_get($$) {
2309	my $key = "$_[0]/$_[1]";
2310
2311	cf::sync_job {
2312	BDB::db_get $DB, undef, $key, my $data;
2313
2314	$! ? ()
2315	: $data
2316	}
2317	}
2318
2319	sub db_put($$$) {
2320	BDB::dbreq_pri 4;
2321	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2322	}
2323
2324	=item cf::cache $id => [$paths...], $processversion => $process
2325
2326	Generic caching function that returns the value of the resource $id,
2327	caching and regenerating as required.
2328
2329	This function can block.
2330
2331	=cut
2332
2333	sub cache {
2334	my ($id, $src, $processversion, $process) = @_;
2335
2336	my $meta =
2337	join "\x00",
2338	$processversion,
2339	map {
2340	aio_stat $_
2341	and Carp::croak "$_: $!";
2342
2343	($_, (stat _)[7,9])
2344	} @$src;
2345
2346	my $dbmeta = db_get cache => "$id/meta";
2347	if ($dbmeta ne $meta) {
2348	# changed, we may need to process
2349
2350	my @data;
2351	my $md5;
2352
2353	for (0 .. $#$src) {
2354	0 <= aio_load $src->[$_], $data[$_]
2355	or Carp::croak "$src->[$_]: $!";
2356	}
2357
2358	# if processing is expensive, check
2359	# checksum first
2360	if (1) {
2361	$md5 =
2362	join "\x00",
2363	$processversion,
2364	map {
2365	Coro::cede;
2366	($src->[$_], Digest::MD5::md5_hex $data[$_])
2367	} 0.. $#$src;
2368
2369
2370	my $dbmd5 = db_get cache => "$id/md5";
2371	if ($dbmd5 eq $md5) {
2372	db_put cache => "$id/meta", $meta;
2373
2374	return db_get cache => "$id/data";
2375	}
2376	}
2377
2378	my $data = $process->(\@data);
2379
2380	db_put cache => "$id/data", $data;
2381	db_put cache => "$id/md5" , $md5;
2382	db_put cache => "$id/meta", $meta;
2383
2384	return $data;
2385	}
2386
2387	db_get cache => "$id/data"
2388	}
2389
2390	=item fork_call { }, $args
2391
2392	Executes the given code block with the given arguments in a seperate
2393	process, returning the results. Everything must be serialisable with
2394	Coro::Storable. May, of course, block. Note that the executed sub may
2395	never block itself or use any form of Event handling.
2396
2397	=cut
2398
2399	sub fork_call(&@) {
2400	my ($cb, @args) = @_;
2401
2402	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2403	# or die "socketpair: $!";
2404	pipe my $fh1, my $fh2
2405	or die "pipe: $!";
2406
2407	if (my $pid = fork) {
2408	close $fh2;
2409
2410	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2411	$res = Coro::Storable::thaw $res;
2412
2413	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2414
2415	die $$res unless "ARRAY" eq ref $res;
2416
2417	return wantarray ? @$res : $res->[-1];
2418	} else {
2419	eval {
2420	local $SIG{__DIE__};
2421	local $SIG{__WARN__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	_exit 0;
2429	}
2430	}
2431
2432
2433		3279
2434	#############################################################################	3280	#############################################################################
2435	# the server's init and main functions	3281	# the server's init and main functions
2436		3282
2437	sub load_facedata($) {	3283	sub load_facedata($) {
2438	my ($path) = @_;	3284	my ($path) = @_;
		3285
		3286	# HACK to clear player env face cache, we need some signal framework
		3287	# for this (global event?)
		3288	%ext::player_env::MUSIC_FACE_CACHE = ();
		3289
		3290	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2439		3291
2440	warn "loading facedata from $path\n";	3292	warn "loading facedata from $path\n";
2441		3293
2442	my $facedata;	3294	my $facedata;
2443	0 < aio_load $path, $facedata	3295	0 < aio_load $path, $facedata
…		…
2446	$facedata = Coro::Storable::thaw $facedata;	3298	$facedata = Coro::Storable::thaw $facedata;
2447		3299
2448	$facedata->{version} == 2	3300	$facedata->{version} == 2
2449	or cf::cleanup "$path: version mismatch, cannot proceed.";	3301	or cf::cleanup "$path: version mismatch, cannot proceed.";
2450		3302
		3303	# patch in the exptable
		3304	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3305	$facedata->{resource}{"res/exp_table"} = {
		3306	type => FT_RSRC,
		3307	data => $exp_table,
		3308	hash => (Digest::MD5::md5 $exp_table),
		3309	};
		3310	cf::cede_to_tick;
		3311
2451	{	3312	{
2452	my $faces = $facedata->{faceinfo};	3313	my $faces = $facedata->{faceinfo};
2453		3314
2454	while (my ($face, $info) = each %$faces) {	3315	while (my ($face, $info) = each %$faces) {
2455	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3316	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3317
2456	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3318	cf::face::set_visibility $idx, $info->{visibility};
		3319	cf::face::set_magicmap $idx, $info->{magicmap};
2457	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3320	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2458	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3321	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2459	Coro::cede;	3322
		3323	cf::cede_to_tick;
2460	}	3324	}
2461		3325
2462	while (my ($face, $info) = each %$faces) {	3326	while (my ($face, $info) = each %$faces) {
2463	next unless $info->{smooth};	3327	next unless $info->{smooth};
		3328
2464	my $idx = cf::face::find $face	3329	my $idx = cf::face::find $face
2465	or next;	3330	or next;
		3331
2466	if (my $smooth = cf::face::find $info->{smooth}) {	3332	if (my $smooth = cf::face::find $info->{smooth}) {
		3333	cf::face::set_smooth $idx, $smooth;
2467	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3334	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2468	} else {	3335	} else {
2469	warn "smooth face '$info->{smooth}' not found for face '$face'";	3336	warn "smooth face '$info->{smooth}' not found for face '$face'";
2470	}	3337	}
2471	Coro::cede;	3338
		3339	cf::cede_to_tick;
2472	}	3340	}
2473	}	3341	}
2474		3342
2475	{	3343	{
2476	my $anims = $facedata->{animinfo};	3344	my $anims = $facedata->{animinfo};
2477		3345
2478	while (my ($anim, $info) = each %$anims) {	3346	while (my ($anim, $info) = each %$anims) {
2479	cf::anim::set $anim, $info->{frames}, $info->{facings};	3347	cf::anim::set $anim, $info->{frames}, $info->{facings};
2480	Coro::cede;	3348	cf::cede_to_tick;
2481	}	3349	}
2482		3350
2483	cf::anim::invalidate_all; # d'oh	3351	cf::anim::invalidate_all; # d'oh
2484	}	3352	}
2485		3353
		3354	{
		3355	my $res = $facedata->{resource};
		3356
		3357	while (my ($name, $info) = each %$res) {
		3358	if (defined $info->{type}) {
		3359	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3360
		3361	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3362	cf::face::set_type $idx, $info->{type};
		3363	} else {
		3364	$RESOURCE{$name} = $info;
		3365	}
		3366
		3367	cf::cede_to_tick;
		3368	}
		3369	}
		3370
		3371	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3372
2486	1	3373	1
2487	}	3374	}
2488		3375
		3376	cf::global->attach (on_resource_update => sub {
		3377	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3378	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3379
		3380	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3381	my $sound = $soundconf->{compat}[$_]
		3382	or next;
		3383
		3384	my $face = cf::face::find "sound/$sound->[1]";
		3385	cf::sound::set $sound->[0] => $face;
		3386	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3387	}
		3388
		3389	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3390	my $face = cf::face::find "sound/$v";
		3391	cf::sound::set $k => $face;
		3392	}
		3393	}
		3394	});
		3395
		3396	register_exticmd fx_want => sub {
		3397	my ($ns, $want) = @_;
		3398
		3399	while (my ($k, $v) = each %$want) {
		3400	$ns->fx_want ($k, $v);
		3401	}
		3402	};
		3403
		3404	sub load_resource_file($) {
		3405	my $guard = lock_acquire "load_resource_file";
		3406
		3407	my $status = load_resource_file_ $_[0];
		3408	get_slot 0.1, 100;
		3409	cf::arch::commit_load;
		3410
		3411	$status
		3412	}
		3413
		3414	sub reload_regions {
		3415	# HACK to clear player env face cache, we need some signal framework
		3416	# for this (global event?)
		3417	%ext::player_env::MUSIC_FACE_CACHE = ();
		3418
		3419	load_resource_file "$MAPDIR/regions"
		3420	or die "unable to load regions file\n";
		3421
		3422	for (cf::region::list) {
		3423	$_->{match} = qr/$_->{match}/
		3424	if exists $_->{match};
		3425	}
		3426	}
		3427
2489	sub reload_facedata {	3428	sub reload_facedata {
2490	load_facedata sprintf "%s/facedata", cf::datadir	3429	load_facedata "$DATADIR/facedata"
2491	or die "unable to load facedata\n";	3430	or die "unable to load facedata\n";
2492	}	3431	}
2493		3432
2494	sub reload_regions {
2495	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2496	or die "unable to load regions file\n";
2497	}
2498
2499	sub reload_archetypes {	3433	sub reload_archetypes {
2500	load_resource_file sprintf "%s/archetypes", cf::datadir	3434	load_resource_file "$DATADIR/archetypes"
2501	or die "unable to load archetypes\n";	3435	or die "unable to load archetypes\n";
2502	}	3436	}
2503		3437
2504	sub reload_treasures {	3438	sub reload_treasures {
2505	load_resource_file sprintf "%s/treasures", cf::datadir	3439	load_resource_file "$DATADIR/treasures"
2506	or die "unable to load treasurelists\n";	3440	or die "unable to load treasurelists\n";
2507	}	3441	}
2508		3442
2509	sub reload_resources {	3443	sub reload_resources {
2510	warn "reloading resource files...\n";	3444	warn "reloading resource files...\n";
2511		3445
2512	reload_regions;
2513	reload_facedata;	3446	reload_facedata;
2514	reload_archetypes;	3447	reload_archetypes;
		3448	reload_regions;
2515	reload_treasures;	3449	reload_treasures;
2516		3450
2517	warn "finished reloading resource files\n";	3451	warn "finished reloading resource files\n";
2518	}	3452	}
2519		3453
2520	sub init {	3454	sub reload_config {
2521	reload_resources;	3455	warn "reloading config file...\n";
2522	}
2523		3456
2524	sub cfg_load {
2525	open my $fh, "<:utf8", cf::confdir . "/config"	3457	open my $fh, "<:utf8", "$CONFDIR/config"
2526	or return;	3458	or return;
2527		3459
2528	local $/;	3460	local $/;
2529	*CFG = YAML::Syck::Load <$fh>;	3461	*CFG = YAML::XS::Load scalar <$fh>;
2530		3462
2531	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3463	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2532		3464
2533	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3465	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2534	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3466	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2538	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3470	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2539	and die "WARNING: m(un)lockall failed: $!\n";	3471	and die "WARNING: m(un)lockall failed: $!\n";
2540	};	3472	};
2541	warn $@ if $@;	3473	warn $@ if $@;
2542	}	3474	}
		3475
		3476	warn "finished reloading resource files\n";
		3477	}
		3478
		3479	sub pidfile() {
		3480	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3481	or die "$PIDFILE: $!";
		3482	flock $fh, &Fcntl::LOCK_EX
		3483	or die "$PIDFILE: flock: $!";
		3484	$fh
		3485	}
		3486
		3487	# make sure only one server instance is running at any one time
		3488	sub atomic {
		3489	my $fh = pidfile;
		3490
		3491	my $pid = <$fh>;
		3492	kill 9, $pid if $pid > 0;
		3493
		3494	seek $fh, 0, 0;
		3495	print $fh $$;
		3496	}
		3497
		3498	sub main_loop {
		3499	warn "EV::loop starting\n";
		3500	if (1) {
		3501	EV::loop;
		3502	}
		3503	warn "EV::loop returned\n";
		3504	goto &main_loop unless $REALLY_UNLOOP;
2543	}	3505	}
2544		3506
2545	sub main {	3507	sub main {
		3508	cf::init_globals; # initialise logging
		3509
		3510	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3511	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3512	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3513	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3514
		3515	cf::init_experience;
		3516	cf::init_anim;
		3517	cf::init_attackmess;
		3518	cf::init_dynamic;
		3519
		3520	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3521
2546	# we must not ever block the main coroutine	3522	# we must not ever block the main coroutine
2547	local $Coro::idle = sub {	3523	local $Coro::idle = sub {
2548	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3524	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2549	(async {	3525	(async {
2550	Event::one_event;	3526	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3527	EV::loop EV::LOOP_ONESHOT;
2551	})->prio (Coro::PRIO_MAX);	3528	})->prio (Coro::PRIO_MAX);
2552	};	3529	};
2553		3530
2554	cfg_load;	3531	evthread_start IO::AIO::poll_fileno;
		3532
		3533	cf::sync_job {
		3534	cf::load_settings;
		3535	cf::load_materials;
		3536
		3537	reload_resources;
		3538	reload_config;
2555	db_init;	3539	db_init;
		3540
		3541	cf::init_uuid;
		3542	cf::init_signals;
		3543	cf::init_commands;
		3544	cf::init_skills;
		3545
		3546	cf::init_beforeplay;
		3547
		3548	atomic;
		3549
2556	load_extensions;	3550	load_extensions;
2557		3551
2558	$TICK_WATCHER->start;	3552	utime time, time, $RUNTIMEFILE;
2559	Event::loop;	3553
		3554	# no (long-running) fork's whatsoever before this point(!)
		3555	use POSIX ();
		3556	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3557
		3558	(pop @POST_INIT)->(0) while @POST_INIT;
		3559	};
		3560
		3561	main_loop;
2560	}	3562	}
2561		3563
2562	#############################################################################	3564	#############################################################################
2563	# initialisation and cleanup	3565	# initialisation and cleanup
2564		3566
2565	# install some emergency cleanup handlers	3567	# install some emergency cleanup handlers
2566	BEGIN {	3568	BEGIN {
		3569	our %SIGWATCHER = ();
2567	for my $signal (qw(INT HUP TERM)) {	3570	for my $signal (qw(INT HUP TERM)) {
2568	Event->signal (	3571	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2569	reentrant => 0,
2570	data => WF_AUTOCANCEL,
2571	signal => $signal,
2572	prio => 0,
2573	cb => sub {
2574	cf::cleanup "SIG$signal";	3572	cf::cleanup "SIG$signal";
2575	},
2576	);	3573	};
		3574	}
		3575	}
		3576
		3577	sub write_runtime_sync {
		3578	my $t0 = EV::time;
		3579
		3580	# first touch the runtime file to show we are still running:
		3581	# the fsync below can take a very very long time.
		3582
		3583	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3584
		3585	my $guard = cf::lock_acquire "write_runtime";
		3586
		3587	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3588	or return;
		3589
		3590	my $value = $cf::RUNTIME + 90 + 10;
		3591	# 10 is the runtime save interval, for a monotonic clock
		3592	# 60 allows for the watchdog to kill the server.
		3593
		3594	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3595	and return;
		3596
		3597	# always fsync - this file is important
		3598	aio_fsync $fh
		3599	and return;
		3600
		3601	# touch it again to show we are up-to-date
		3602	aio_utime $fh, undef, undef;
		3603
		3604	close $fh
		3605	or return;
		3606
		3607	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3608	and return;
		3609
		3610	warn sprintf "runtime file written (%gs).\n", EV::time - $t0;
		3611
2577	}	3612	1
		3613	}
		3614
		3615	our $uuid_lock;
		3616	our $uuid_skip;
		3617
		3618	sub write_uuid_sync($) {
		3619	$uuid_skip ||= $_[0];
		3620
		3621	return if $uuid_lock;
		3622	local $uuid_lock = 1;
		3623
		3624	my $uuid = "$LOCALDIR/uuid";
		3625
		3626	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3627	or return;
		3628
		3629	my $value = uuid_seq uuid_cur;
		3630
		3631	unless ($value) {
		3632	warn "cowardly refusing to write zero uuid value!\n";
		3633	return;
		3634	}
		3635
		3636	my $value = uuid_str $value + $uuid_skip;
		3637	$uuid_skip = 0;
		3638
		3639	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3640	and return;
		3641
		3642	# always fsync - this file is important
		3643	aio_fsync $fh
		3644	and return;
		3645
		3646	close $fh
		3647	or return;
		3648
		3649	aio_rename "$uuid~", $uuid
		3650	and return;
		3651
		3652	warn "uuid file written ($value).\n";
		3653
		3654	1
		3655
		3656	}
		3657
		3658	sub write_uuid($$) {
		3659	my ($skip, $sync) = @_;
		3660
		3661	$sync ? write_uuid_sync $skip
		3662	: async { write_uuid_sync $skip };
2578	}	3663	}
2579		3664
2580	sub emergency_save() {	3665	sub emergency_save() {
2581	my $freeze_guard = cf::freeze_mainloop;	3666	my $freeze_guard = cf::freeze_mainloop;
2582		3667
2583	warn "enter emergency perl save\n";	3668	warn "emergency_perl_save: enter\n";
2584		3669
2585	cf::sync_job {	3670	cf::sync_job {
		3671	# this is a trade-off: we want to be very quick here, so
		3672	# save all maps without fsync, and later call a global sync
		3673	# (which in turn might be very very slow)
		3674	local $USE_FSYNC = 0;
		3675
2586	# use a peculiar iteration method to avoid tripping on perl	3676	# use a peculiar iteration method to avoid tripping on perl
2587	# refcount bugs in for. also avoids problems with players	3677	# refcount bugs in for. also avoids problems with players
2588	# and maps saved/destroyed asynchronously.	3678	# and maps saved/destroyed asynchronously.
2589	warn "begin emergency player save\n";	3679	warn "emergency_perl_save: begin player save\n";
2590	for my $login (keys %cf::PLAYER) {	3680	for my $login (keys %cf::PLAYER) {
2591	my $pl = $cf::PLAYER{$login} or next;	3681	my $pl = $cf::PLAYER{$login} or next;
2592	$pl->valid or next;	3682	$pl->valid or next;
		3683	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2593	$pl->save;	3684	$pl->save;
2594	}	3685	}
2595	warn "end emergency player save\n";	3686	warn "emergency_perl_save: end player save\n";
2596		3687
2597	warn "begin emergency map save\n";	3688	warn "emergency_perl_save: begin map save\n";
2598	for my $path (keys %cf::MAP) {	3689	for my $path (keys %cf::MAP) {
2599	my $map = $cf::MAP{$path} or next;	3690	my $map = $cf::MAP{$path} or next;
2600	$map->valid or next;	3691	$map->valid or next;
2601	$map->save;	3692	$map->save;
2602	}	3693	}
2603	warn "end emergency map save\n";	3694	warn "emergency_perl_save: end map save\n";
2604		3695
2605	warn "begin emergency database checkpoint\n";	3696	warn "emergency_perl_save: begin database checkpoint\n";
2606	BDB::db_env_txn_checkpoint $DB_ENV;	3697	BDB::db_env_txn_checkpoint $DB_ENV;
2607	warn "end emergency database checkpoint\n";	3698	warn "emergency_perl_save: end database checkpoint\n";
		3699
		3700	warn "emergency_perl_save: begin write uuid\n";
		3701	write_uuid_sync 1;
		3702	warn "emergency_perl_save: end write uuid\n";
2608	};	3703	};
2609		3704
		3705	warn "emergency_perl_save: starting sync()\n";
		3706	IO::AIO::aio_sync sub {
		3707	warn "emergency_perl_save: finished sync()\n";
		3708	};
		3709
2610	warn "leave emergency perl save\n";	3710	warn "emergency_perl_save: leave\n";
2611	}	3711	}
2612		3712
2613	sub post_cleanup {	3713	sub post_cleanup {
2614	my ($make_core) = @_;	3714	my ($make_core) = @_;
2615		3715
2616	warn Carp::longmess "post_cleanup backtrace"	3716	warn Carp::longmess "post_cleanup backtrace"
2617	if $make_core;	3717	if $make_core;
		3718
		3719	my $fh = pidfile;
		3720	unlink $PIDFILE if <$fh> == $$;
		3721	}
		3722
		3723	# a safer delete_package, copied from Symbol
		3724	sub clear_package($) {
		3725	my $pkg = shift;
		3726
		3727	# expand to full symbol table name if needed
		3728	unless ($pkg =~ /^main::.*::$/) {
		3729	$pkg = "main$pkg" if $pkg =~ /^::/;
		3730	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3731	$pkg .= '::' unless $pkg =~ /::$/;
		3732	}
		3733
		3734	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3735	my $stem_symtab = *{$stem}{HASH};
		3736
		3737	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3738	or return;
		3739
		3740	# clear all symbols
		3741	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3742	for my $name (keys %$leaf_symtab) {
		3743	_gv_clear *{"$pkg$name"};
		3744	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3745	}
		3746	warn "cleared package $pkg\n";#d#
2618	}	3747	}
2619		3748
2620	sub do_reload_perl() {	3749	sub do_reload_perl() {
2621	# can/must only be called in main	3750	# can/must only be called in main
2622	if ($Coro::current != $Coro::main) {	3751	if ($Coro::current != $Coro::main) {
2623	warn "can only reload from main coroutine";	3752	warn "can only reload from main coroutine";
2624	return;	3753	return;
2625	}	3754	}
2626		3755
		3756	return if $RELOAD++;
		3757
		3758	my $t1 = EV::time;
		3759
		3760	while ($RELOAD) {
2627	warn "reloading...";	3761	warn "reloading...";
2628		3762
2629	warn "entering sync_job";	3763	warn "entering sync_job";
2630		3764
2631	cf::sync_job {	3765	cf::sync_job {
2632	cf::write_runtime; # external watchdog should not bark	3766	cf::write_runtime_sync; # external watchdog should not bark
2633	cf::emergency_save;	3767	cf::emergency_save;
2634	cf::write_runtime; # external watchdog should not bark	3768	cf::write_runtime_sync; # external watchdog should not bark
2635		3769
2636	warn "syncing database to disk";	3770	warn "syncing database to disk";
2637	BDB::db_env_txn_checkpoint $DB_ENV;	3771	BDB::db_env_txn_checkpoint $DB_ENV;
2638		3772
2639	# if anything goes wrong in here, we should simply crash as we already saved	3773	# if anything goes wrong in here, we should simply crash as we already saved
2640		3774
2641	warn "cancelling all WF_AUTOCANCEL watchers";
2642	for (Event::all_watchers) {
2643	$_->cancel if $_->data & WF_AUTOCANCEL;
2644	}
2645
2646	warn "flushing outstanding aio requests";	3775	warn "flushing outstanding aio requests";
2647	for (;;) {
2648	BDB::flush;
2649	IO::AIO::flush;
2650	Coro::cede;
2651	last unless IO::AIO::nreqs || BDB::nreqs;	3776	while (IO::AIO::nreqs || BDB::nreqs) {
2652	warn "iterate...";	3777	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2653	}
2654
2655	++$RELOAD;
2656
2657	warn "cancelling all extension coros";
2658	$_->cancel for values %EXT_CORO;
2659	%EXT_CORO = ();
2660
2661	warn "removing commands";
2662	%COMMAND = ();
2663
2664	warn "removing ext commands";
2665	%EXTCMD = ();
2666
2667	warn "unloading/nuking all extensions";
2668	for my $pkg (@EXTS) {
2669	warn "... unloading $pkg";
2670
2671	if (my $cb = $pkg->can ("unload")) {
2672	eval {
2673	$cb->($pkg);
2674	1
2675	} or warn "$pkg unloaded, but with errors: $@";
2676	}	3778	}
2677		3779
2678	warn "... nuking $pkg";	3780	warn "cancelling all extension coros";
2679	Symbol::delete_package $pkg;	3781	$_->cancel for values %EXT_CORO;
2680	}	3782	%EXT_CORO = ();
2681		3783
2682	warn "unloading all perl modules loaded from $LIBDIR";	3784	warn "removing commands";
2683	while (my ($k, $v) = each %INC) {	3785	%COMMAND = ();
2684	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2685		3786
		3787	warn "removing ext/exti commands";
		3788	%EXTCMD = ();
		3789	%EXTICMD = ();
		3790
		3791	warn "unloading/nuking all extensions";
		3792	for my $pkg (@EXTS) {
2686	warn "... unloading $k";	3793	warn "... unloading $pkg";
2687	delete $INC{$k};
2688		3794
2689	$k =~ s/\.pm$//;
2690	$k =~ s/\//::/g;
2691
2692	if (my $cb = $k->can ("unload_module")) {	3795	if (my $cb = $pkg->can ("unload")) {
		3796	eval {
2693	$cb->();	3797	$cb->($pkg);
		3798	1
		3799	} or warn "$pkg unloaded, but with errors: $@";
		3800	}
		3801
		3802	warn "... clearing $pkg";
		3803	clear_package $pkg;
2694	}	3804	}
2695		3805
2696	Symbol::delete_package $k;	3806	warn "unloading all perl modules loaded from $LIBDIR";
		3807	while (my ($k, $v) = each %INC) {
		3808	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3809
		3810	warn "... unloading $k";
		3811	delete $INC{$k};
		3812
		3813	$k =~ s/\.pm$//;
		3814	$k =~ s/\//::/g;
		3815
		3816	if (my $cb = $k->can ("unload_module")) {
		3817	$cb->();
		3818	}
		3819
		3820	clear_package $k;
2697	}	3821	}
2698		3822
2699	warn "getting rid of safe::, as good as possible";	3823	warn "getting rid of safe::, as good as possible";
2700	Symbol::delete_package "safe::$_"	3824	clear_package "safe::$_"
2701	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3825	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2702		3826
2703	warn "unloading cf.pm \"a bit\"";	3827	warn "unloading cf.pm \"a bit\"";
2704	delete $INC{"cf.pm"};	3828	delete $INC{"cf.pm"};
		3829	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2705		3830
2706	# don't, removes xs symbols, too,	3831	# don't, removes xs symbols, too,
2707	# and global variables created in xs	3832	# and global variables created in xs
2708	#Symbol::delete_package __PACKAGE__;	3833	#clear_package __PACKAGE__;
2709		3834
2710	warn "unload completed, starting to reload now";	3835	warn "unload completed, starting to reload now";
2711		3836
2712	warn "reloading cf.pm";	3837	warn "reloading cf.pm";
2713	require cf;	3838	require cf;
2714	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3839	cf::_connect_to_perl_1;
2715		3840
2716	warn "loading config and database again";	3841	warn "loading config and database again";
2717	cf::cfg_load;	3842	cf::reload_config;
2718		3843
2719	warn "loading extensions";	3844	warn "loading extensions";
2720	cf::load_extensions;	3845	cf::load_extensions;
2721		3846
		3847	if ($REATTACH_ON_RELOAD) {
2722	warn "reattaching attachments to objects/players";	3848	warn "reattaching attachments to objects/players";
2723	_global_reattach; # objects, sockets	3849	_global_reattach; # objects, sockets
2724	warn "reattaching attachments to maps";	3850	warn "reattaching attachments to maps";
2725	reattach $_ for values %MAP;	3851	reattach $_ for values %MAP;
2726	warn "reattaching attachments to players";	3852	warn "reattaching attachments to players";
2727	reattach $_ for values %PLAYER;	3853	reattach $_ for values %PLAYER;
		3854	}
2728		3855
		3856	warn "running post_init jobs";
		3857	(pop @POST_INIT)->(1) while @POST_INIT;
		3858
2729	warn "leaving sync_job";	3859	warn "leaving sync_job";
2730		3860
2731	1	3861	1
2732	} or do {	3862	} or do {
2733	warn $@;	3863	warn $@;
2734	warn "error while reloading, exiting.";	3864	cf::cleanup "error while reloading, exiting.";
2735	exit 1;
2736	};	3865	};
2737		3866
2738	warn "reloaded";	3867	warn "reloaded";
		3868	--$RELOAD;
		3869	}
		3870
		3871	$t1 = EV::time - $t1;
		3872	warn "reload completed in ${t1}s\n";
2739	};	3873	};
2740		3874
2741	our $RELOAD_WATCHER; # used only during reload	3875	our $RELOAD_WATCHER; # used only during reload
2742		3876
2743	sub reload_perl() {	3877	sub reload_perl() {
2744	# doing reload synchronously and two reloads happen back-to-back,	3878	# doing reload synchronously and two reloads happen back-to-back,
2745	# coro crashes during coro_state_free->destroy here.	3879	# coro crashes during coro_state_free->destroy here.
2746		3880
2747	$RELOAD_WATCHER ||= Event->timer (	3881	$RELOAD_WATCHER ||= cf::async {
2748	reentrant => 0,	3882	Coro::AIO::aio_wait cache_extensions;
2749	after => 0,	3883
2750	data => WF_AUTOCANCEL,	3884	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2751	cb => sub {
2752	do_reload_perl;	3885	do_reload_perl;
2753	undef $RELOAD_WATCHER;	3886	undef $RELOAD_WATCHER;
2754	},	3887	};
2755	);	3888	};
2756	}	3889	}
2757		3890
2758	register_command "reload" => sub {	3891	register_command "reload" => sub {
2759	my ($who, $arg) = @_;	3892	my ($who, $arg) = @_;
2760		3893
2761	if ($who->flag (FLAG_WIZ)) {	3894	if ($who->flag (FLAG_WIZ)) {
2762	$who->message ("reloading server.");	3895	$who->message ("reloading server.");
		3896	async {
		3897	$Coro::current->{desc} = "perl_reload";
2763	async { reload_perl };	3898	reload_perl;
		3899	};
2764	}	3900	}
2765	};	3901	};
2766		3902
2767	unshift @INC, $LIBDIR;	3903	unshift @INC, $LIBDIR;
2768		3904
…		…
2770		3906
2771	our @WAIT_FOR_TICK;	3907	our @WAIT_FOR_TICK;
2772	our @WAIT_FOR_TICK_BEGIN;	3908	our @WAIT_FOR_TICK_BEGIN;
2773		3909
2774	sub wait_for_tick {	3910	sub wait_for_tick {
2775	return unless $TICK_WATCHER->is_active;
2776	return if $Coro::current == $Coro::main;	3911	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2777		3912
2778	my $signal = new Coro::Signal;	3913	my $signal = new Coro::Signal;
2779	push @WAIT_FOR_TICK, $signal;	3914	push @WAIT_FOR_TICK, $signal;
2780	$signal->wait;	3915	$signal->wait;
2781	}	3916	}
2782		3917
2783	sub wait_for_tick_begin {	3918	sub wait_for_tick_begin {
2784	return unless $TICK_WATCHER->is_active;
2785	return if $Coro::current == $Coro::main;	3919	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2786		3920
2787	my $signal = new Coro::Signal;	3921	my $signal = new Coro::Signal;
2788	push @WAIT_FOR_TICK_BEGIN, $signal;	3922	push @WAIT_FOR_TICK_BEGIN, $signal;
2789	$signal->wait;	3923	$signal->wait;
2790	}	3924	}
2791		3925
2792	$TICK_WATCHER = Event->timer (	3926	sub tick {
2793	reentrant => 0,
2794	parked => 1,
2795	prio => 0,
2796	at => $NEXT_TICK || $TICK,
2797	data => WF_AUTOCANCEL,
2798	cb => sub {
2799	if ($Coro::current != $Coro::main) {	3927	if ($Coro::current != $Coro::main) {
2800	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3928	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2801	unless ++$bug_warning > 10;	3929	unless ++$bug_warning > 10;
2802	return;	3930	return;
2803	}	3931	}
2804		3932
2805	$NOW = Event::time;
2806
2807	cf::server_tick; # one server iteration	3933	cf::server_tick; # one server iteration
2808		3934
2809	$RUNTIME += $TICK;	3935	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
2810	$NEXT_TICK += $TICK;
2811		3936
2812	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3937	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2813	$NEXT_RUNTIME_WRITE = $NOW + 10;	3938	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2814	Coro::async_pool {	3939	Coro::async_pool {
		3940	$Coro::current->{desc} = "runtime saver";
2815	write_runtime	3941	write_runtime_sync
2816	or warn "ERROR: unable to write runtime file: $!";	3942	or warn "ERROR: unable to write runtime file: $!";
2817	};
2818	}	3943	};
		3944	}
2819		3945
2820	# my $AFTER = Event::time;
2821	# warn $AFTER - $NOW;#d#
2822
2823	# if we are delayed by four ticks or more, skip them all
2824	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2825
2826	$TICK_WATCHER->at ($NEXT_TICK);
2827	$TICK_WATCHER->start;
2828
2829	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3946	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2830	$sig->send;	3947	$sig->send;
2831	}	3948	}
2832	while (my $sig = shift @WAIT_FOR_TICK) {	3949	while (my $sig = shift @WAIT_FOR_TICK) {
2833	$sig->send;	3950	$sig->send;
2834	}
2835
2836	_post_tick;
2837	},	3951	}
2838	);	3952
		3953	$LOAD = ($NOW - $TICK_START) / $TICK;
		3954	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3955
		3956	if (0) {
		3957	if ($NEXT_TICK) {
		3958	my $jitter = $TICK_START - $NEXT_TICK;
		3959	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3960	warn "jitter $JITTER\n";#d#
		3961	}
		3962	}
		3963	}
2839		3964
2840	{	3965	{
2841	BDB::max_poll_time $TICK * 0.1;	3966	# configure BDB
2842	$BDB_POLL_WATCHER = Event->io (	3967
2843	reentrant => 0,
2844	fd => BDB::poll_fileno,
2845	poll => 'r',
2846	prio => 0,
2847	data => WF_AUTOCANCEL,
2848	cb => \&BDB::poll_cb,
2849	);
2850	BDB::min_parallel 8;	3968	BDB::min_parallel 16;
2851		3969	BDB::max_poll_reqs $TICK * 0.1;
2852	BDB::set_sync_prepare {	3970	$AnyEvent::BDB::WATCHER->priority (1);
2853	my $status;
2854	my $current = $Coro::current;
2855	(
2856	sub {
2857	$status = $!;
2858	$current->ready; undef $current;
2859	},
2860	sub {
2861	Coro::schedule while defined $current;
2862	$! = $status;
2863	},
2864	)
2865	};
2866		3971
2867	unless ($DB_ENV) {	3972	unless ($DB_ENV) {
2868	$DB_ENV = BDB::db_env_create;	3973	$DB_ENV = BDB::db_env_create;
		3974	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3975	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3976	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3977	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3978	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2869		3979
2870	cf::sync_job {	3980	cf::sync_job {
2871	eval {	3981	eval {
2872	BDB::db_env_open	3982	BDB::db_env_open
2873	$DB_ENV,	3983	$DB_ENV,
2874	$BDB_ENV_DIR,	3984	$BDBDIR,
2875	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3985	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2876	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3986	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2877	0666;	3987	0666;
2878		3988
2879	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3989	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2880
2881	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2882	$DB_ENV->set_lk_detect;
2883	};	3990	};
2884		3991
2885	cf::cleanup "db_env_open(db): $@" if $@;	3992	cf::cleanup "db_env_open(db): $@" if $@;
2886	};	3993	};
2887	}	3994	}
		3995
		3996	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3997	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3998	};
		3999	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4000	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4001	};
		4002	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4003	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4004	};
2888	}	4005	}
2889		4006
2890	{	4007	{
		4008	# configure IO::AIO
		4009
2891	IO::AIO::min_parallel 8;	4010	IO::AIO::min_parallel 8;
2892
2893	undef $Coro::AIO::WATCHER;
2894	IO::AIO::max_poll_time $TICK * 0.1;	4011	IO::AIO::max_poll_time $TICK * 0.1;
2895	$AIO_POLL_WATCHER = Event->io (	4012	undef $AnyEvent::AIO::WATCHER;
2896	reentrant => 0,	4013	}
2897	data => WF_AUTOCANCEL,	4014
2898	fd => IO::AIO::poll_fileno,	4015	my $_log_backtrace;
2899	poll => 'r',	4016
2900	prio => 6,	4017	sub _log_backtrace {
2901	cb => \&IO::AIO::poll_cb,	4018	my ($msg, @addr) = @_;
2902	);	4019
		4020	$msg =~ s/\n//;
		4021
		4022	# limit the # of concurrent backtraces
		4023	if ($_log_backtrace < 2) {
		4024	++$_log_backtrace;
		4025	my $perl_bt = Carp::longmess $msg;
		4026	async {
		4027	$Coro::current->{desc} = "abt $msg";
		4028
		4029	my @bt = fork_call {
		4030	@addr = map { sprintf "%x", $_ } @addr;
		4031	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4032	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4033	or die "addr2line: $!";
		4034
		4035	my @funcs;
		4036	my @res = <$fh>;
		4037	chomp for @res;
		4038	while (@res) {
		4039	my ($func, $line) = splice @res, 0, 2, ();
		4040	push @funcs, "[$func] $line";
		4041	}
		4042
		4043	@funcs
		4044	};
		4045
		4046	LOG llevInfo, "[ABT] $perl_bt\n";
		4047	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4048	LOG llevInfo, "[ABT] $_\n" for @bt;
		4049	--$_log_backtrace;
		4050	};
		4051	} else {
		4052	LOG llevInfo, "[ABT] $msg\n";
		4053	LOG llevInfo, "[ABT] [suppressed]\n";
		4054	}
2903	}	4055	}
2904		4056
2905	# load additional modules	4057	# load additional modules
2906	use cf::pod;	4058	require "cf/$_.pm" for @EXTRA_MODULES;
		4059	cf::_connect_to_perl_2;
2907		4060
2908	END { cf::emergency_save }	4061	END { cf::emergency_save }
2909		4062
2910	1	4063	1
2911		4064

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