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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.252 by root, Wed Apr 18 15:28:18 2007 UTC vs.
Revision 1.504 by root, Sat Jan 30 23:50:16 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 %done;
		1405	while (%todo) {
		1406	my $progress;
		1407
		1408	while (my ($k, $v) = each %todo) {
		1409	for (split /,\s*/, $v->{meta}{depends}) {
		1410	goto skip
		1411	unless exists $done{$_};
		1412	}
		1413
		1414	warn "... loading '$k' into '$v->{pkg}'\n";
		1415
		1416	unless (eval $v->{source}) {
		1417	my $msg = $@ ? "$v->{path}: $@\n"
		1418	: "$v->{base}: extension inactive.\n";
		1419
		1420	if (exists $v->{meta}{mandatory}) {
		1421	warn $msg;
		1422	cf::cleanup "mandatory extension failed to load, exiting.";
		1423	}
		1424
		1425	warn $msg;
		1426	}
		1427
		1428	$done{$k} = delete $todo{$k};
		1429	push @EXTS, $v->{pkg};
		1430	$progress = 1;
932	1	1431	}
933	} or warn "$ext not loaded: $@";	1432
		1433	skip:
		1434	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1435	unless $progress;
		1436	}
934	}	1437	};
935	}	1438	}
936		1439
937	#############################################################################	1440	#############################################################################
938		1441
		1442	=back
		1443
939	=head2 CORE EXTENSIONS	1444	=head2 CORE EXTENSIONS
940		1445
941	Functions and methods that extend core crossfire objects.	1446	Functions and methods that extend core deliantra objects.
942		1447
943	=cut	1448	=cut
944		1449
945	package cf::player;	1450	package cf::player;
946		1451
…		…
948		1453
949	=head3 cf::player	1454	=head3 cf::player
950		1455
951	=over 4	1456	=over 4
952		1457
		1458	=item cf::player::num_playing
		1459
		1460	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1461
		1462	=cut
		1463
		1464	sub num_playing {
		1465	scalar grep
		1466	$_->ob->map
		1467	&& !$_->hidden
		1468	&& !$_->ob->flag (cf::FLAG_WIZ),
		1469	cf::player::list
		1470	}
		1471
953	=item cf::player::find $login	1472	=item cf::player::find $login
954		1473
955	Returns the given player object, loading it if necessary (might block).	1474	Returns the given player object, loading it if necessary (might block).
956		1475
957	=cut	1476	=cut
958		1477
959	sub playerdir($) {	1478	sub playerdir($) {
960	cf::localdir	1479	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1480	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1481	}
966		1482
967	sub path($) {	1483	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1484	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
978		1494
979	sub exists($) {	1495	sub exists($) {
980	my ($login) = @_;	1496	my ($login) = @_;
981		1497
982	$cf::PLAYER{$login}	1498	$cf::PLAYER{$login}
983	or cf::sync_job { !aio_stat path $login }	1499	or !aio_stat path $login
984	}	1500	}
985		1501
986	sub find($) {	1502	sub find($) {
987	return $cf::PLAYER{$_[0]} || do {	1503	return $cf::PLAYER{$_[0]} || do {
988	my $login = $_[0];	1504	my $login = $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1511	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1512	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1513	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1514	aio_unlink +(playerdir $login) . "/$login.pl";
999		1515
1000	my $pl = load_pl path $login	1516	my $f = new_from_file cf::object::thawer path $login
1001	or return;	1517	or return;
		1518
		1519	my $pl = cf::player::load_pl $f
		1520	or return;
		1521
		1522	local $cf::PLAYER_LOADING{$login} = $pl;
		1523	$f->resolve_delayed_derefs;
1002	$cf::PLAYER{$login} = $pl	1524	$cf::PLAYER{$login} = $pl
1003	}	1525	}
1004	}	1526	}
1005	}	1527	}
1006		1528
…		…
1015	return if $pl->{deny_save};	1537	return if $pl->{deny_save};
1016		1538
1017	aio_mkdir playerdir $pl, 0770;	1539	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1540	$pl->{last_save} = $cf::RUNTIME;
1019		1541
		1542	cf::get_slot 0.01;
		1543
1020	$pl->save_pl ($path);	1544	$pl->save_pl ($path);
1021	Coro::cede;	1545	cf::cede_to_tick;
1022	}	1546	}
1023		1547
1024	sub new($) {	1548	sub new($) {
1025	my ($login) = @_;	1549	my ($login) = @_;
1026		1550
…		…
1032	$cf::PLAYER{$login} = $self;	1556	$cf::PLAYER{$login} = $self;
1033		1557
1034	$self	1558	$self
1035	}	1559	}
1036		1560
		1561	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1562
		1563	=cut
		1564
		1565	sub send_msg {
		1566	my $ns = shift->ns
		1567	or return;
		1568	$ns->send_msg (@_);
		1569	}
		1570
1037	=item $pl->quit_character	1571	=item $pl->quit_character
1038		1572
1039	Nukes the player without looking back. If logged in, the connection will	1573	Nukes the player without looking back. If logged in, the connection will
1040	be destroyed. May block for a long time.	1574	be destroyed. May block for a long time.
1041		1575
…		…
1045	my ($pl) = @_;	1579	my ($pl) = @_;
1046		1580
1047	my $name = $pl->ob->name;	1581	my $name = $pl->ob->name;
1048		1582
1049	$pl->{deny_save} = 1;	1583	$pl->{deny_save} = 1;
1050	$pl->password ("*"); # this should lock out the player until we nuked the dir	1584	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1051		1585
1052	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1586	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1053	$pl->deactivate;	1587	$pl->deactivate;
		1588	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1589	$pl->ob->check_score;
1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1590	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1055	$pl->ns->destroy if $pl->ns;	1591	$pl->ns->destroy if $pl->ns;
1056		1592
1057	my $path = playerdir $pl;	1593	my $path = playerdir $pl;
1058	my $temp = "$path~$cf::RUNTIME~deleting~";	1594	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1088	while and may block, so not sync_job-capable, ever.	1624	while and may block, so not sync_job-capable, ever.
1089		1625
1090	=cut	1626	=cut
1091		1627
1092	sub list_logins {	1628	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1629	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1630	or return [];
1095		1631
1096	my @logins;	1632	my @logins;
1097		1633
1098	for my $login (@$dirs) {	1634	for my $login (@$dirs) {
		1635	my $path = path $login;
		1636
		1637	# a .pst is a dead give-away for a valid player
		1638	# if no pst file found, open and chekc for blocked users
		1639	if (aio_stat "$path.pst") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1640	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1641	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1642	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1643	}
1102		1644
1103	utf8::decode $login;	1645	utf8::decode $login;
1104	push @logins, $login;	1646	push @logins, $login;
1105	}	1647	}
1106		1648
…		…
1133	}	1675	}
1134		1676
1135	\@paths	1677	\@paths
1136	}	1678	}
1137		1679
		1680	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1681
		1682	Expand deliantra pod fragments into protocol xml.
		1683
1138	=item $player->ext_reply ($msgid, %msg)	1684	=item $player->ext_reply ($msgid, @msg)
1139		1685
1140	Sends an ext reply to the player.	1686	Sends an ext reply to the player.
1141		1687
1142	=cut	1688	=cut
1143		1689
1144	sub ext_reply($$%) {	1690	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1691	my ($self, $id, @msg) = @_;
1146		1692
1147	$msg{msgid} = $id;	1693	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1694	}
1151		1695
1152	=item $player->ext_event ($type, %msg)	1696	=item $player->ext_msg ($type, @msg)
1153		1697
1154	Sends an ext event to the client.	1698	Sends an ext event to the client.
1155		1699
1156	=cut	1700	=cut
1157		1701
1158	sub ext_event($$%) {	1702	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1703	my ($self, $type, @msg) = @_;
1160		1704
1161	$self->ns->ext_event ($type, %msg);	1705	$self->ns->ext_msg ($type, @msg);
1162	}	1706	}
1163		1707
1164	=head3 cf::region	1708	=head3 cf::region
1165		1709
1166	=over 4	1710	=over 4
…		…
1169		1713
1170	package cf::region;	1714	package cf::region;
1171		1715
1172	=item cf::region::find_by_path $path	1716	=item cf::region::find_by_path $path
1173		1717
1174	Tries to decuce the probable region for a map knowing only its path.	1718	Tries to decuce the likely region for a map knowing only its path.
1175		1719
1176	=cut	1720	=cut
1177		1721
1178	sub find_by_path($) {	1722	sub find_by_path($) {
1179	my ($path) = @_;	1723	my ($path) = @_;
1180		1724
1181	my ($match, $specificity);	1725	my ($match, $specificity);
1182		1726
1183	for my $region (list) {	1727	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1728	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1729	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1730	if $region->specificity > $specificity;
1187	}	1731	}
1188	}	1732	}
1189		1733
…		…
1210	our $MAX_RESET = 3600;	1754	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1755	our $DEFAULT_RESET = 3000;
1212		1756
1213	sub generate_random_map {	1757	sub generate_random_map {
1214	my ($self, $rmp) = @_;	1758	my ($self, $rmp) = @_;
		1759
		1760	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1761
1215	# mit "rum" bekleckern, nicht	1762	# mit "rum" bekleckern, nicht
1216	$self->_create_random_map (	1763	$self->_create_random_map (
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1764	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1765	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1766	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1253	my ($self, $merge) = @_;	1800	my ($self, $merge) = @_;
1254		1801
1255	# we have to keep some variables in memory intact	1802	# we have to keep some variables in memory intact
1256	local $self->{path};	1803	local $self->{path};
1257	local $self->{load_path};	1804	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1805
1261	$self->SUPER::thawer_merge ($merge);	1806	$self->SUPER::thawer_merge ($merge);
1262	}	1807	}
1263		1808
1264	sub normalise {	1809	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1856	$self->init; # pass $1 etc.
1312	return $self;	1857	return $self;
1313	}	1858	}
1314	}	1859	}
1315		1860
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1861	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1862	()
1318	}	1863	}
1319		1864
1320	sub init {	1865	sub init {
1321	my ($self) = @_;	1866	my ($self) = @_;
…		…
1336		1881
1337	# the original (read-only) location	1882	# the original (read-only) location
1338	sub load_path {	1883	sub load_path {
1339	my ($self) = @_;	1884	my ($self) = @_;
1340		1885
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1886	"$MAPDIR/$self->{path}.map"
1342	}	1887	}
1343		1888
1344	# the temporary/swap location	1889	# the temporary/swap location
1345	sub save_path {	1890	sub save_path {
1346	my ($self) = @_;	1891	my ($self) = @_;
1347		1892
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1893	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1894	"$TMPDIR/$path.map"
1350	}	1895	}
1351		1896
1352	# the unique path, undef == no special unique path	1897	# the unique path, undef == no special unique path
1353	sub uniq_path {	1898	sub uniq_path {
1354	my ($self) = @_;	1899	my ($self) = @_;
1355		1900
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1901	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1902	"$UNIQUEDIR/$path"
1358	}	1903	}
1359		1904
1360	# and all this just because we cannot iterate over	1905	sub decay_objects {
1361	# all maps in C++...
1362	sub change_all_map_light {
1363	my ($change) = @_;	1906	my ($self) = @_;
1364		1907
1365	$_->change_map_light ($change)	1908	return if $self->{deny_reset};
1366	for grep $_->outdoor, values %cf::MAP;	1909
		1910	$self->do_decay_objects;
1367	}	1911	}
1368		1912
1369	sub unlink_save {	1913	sub unlink_save {
1370	my ($self) = @_;	1914	my ($self) = @_;
1371		1915
…		…
1376		1920
1377	sub load_header_from($) {	1921	sub load_header_from($) {
1378	my ($self, $path) = @_;	1922	my ($self, $path) = @_;
1379		1923
1380	utf8::encode $path;	1924	utf8::encode $path;
1381	#aio_open $path, O_RDONLY, 0	1925	my $f = new_from_file cf::object::thawer $path
1382	# or return;
1383
1384	$self->_load_header ($path)
1385	or return;	1926	or return;
		1927
		1928	$self->_load_header ($f)
		1929	or return;
		1930
		1931	local $MAP_LOADING{$self->{path}} = $self;
		1932	$f->resolve_delayed_derefs;
1386		1933
1387	$self->{load_path} = $path;	1934	$self->{load_path} = $path;
1388		1935
1389	1	1936	1
1390	}	1937	}
…		…
1429	$self->load_header_orig	1976	$self->load_header_orig
1430	or return;	1977	or return;
1431	$self->prepare_orig;	1978	$self->prepare_orig;
1432	}	1979	}
1433		1980
		1981	$self->{deny_reset} = 1
		1982	if $self->no_reset;
		1983
1434	$self->default_region (cf::region::find_by_path $self->{path})	1984	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1985	unless $self->default_region;
1436		1986
1437	1	1987	1
1438	}	1988	}
…		…
1441	sub find {	1991	sub find {
1442	my ($path, $origin) = @_;	1992	my ($path, $origin) = @_;
1443		1993
1444	$path = normalise $path, $origin && $origin->path;	1994	$path = normalise $path, $origin && $origin->path;
1445		1995
		1996	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1446	cf::lock_wait "map_find:$path";	1997	my $guard2 = cf::lock_acquire "map_find:$path";
1447		1998
1448	$cf::MAP{$path} || do {	1999	$cf::MAP{$path} || do {
1449	my $guard = cf::lock_acquire "map_find:$path";
1450	my $map = new_from_path cf::map $path	2000	my $map = new_from_path cf::map $path
1451	or return;	2001	or return;
1452		2002
1453	$map->{last_save} = $cf::RUNTIME;	2003	$map->{last_save} = $cf::RUNTIME;
1454		2004
1455	$map->load_header	2005	$map->load_header
1456	or return;	2006	or return;
1457		2007
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2008	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	2009	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	2010	#$cf::WAIT_FOR_TICK->wait;
		2011	undef $guard2;
		2012	undef $guard1;
1461	$map->reset;	2013	$map->reset;
1462	undef $guard;
1463	return find $path;	2014	return find $path;
1464	}	2015	}
1465		2016
1466	$cf::MAP{$path} = $map	2017	$cf::MAP{$path} = $map
1467	}	2018	}
1468	}	2019	}
1469		2020
1470	sub pre_load { }	2021	sub pre_load { }
1471	sub post_load { }	2022	#sub post_load { } # XS
1472		2023
1473	sub load {	2024	sub load {
1474	my ($self) = @_;	2025	my ($self) = @_;
1475		2026
1476	local $self->{deny_reset} = 1; # loading can take a long time	2027	local $self->{deny_reset} = 1; # loading can take a long time
1477		2028
1478	my $path = $self->{path};	2029	my $path = $self->{path};
		2030
		2031	{
1479	my $guard = cf::lock_acquire "map_load:$path";	2032	my $guard = cf::lock_acquire "map_data:$path";
1480		2033
		2034	return unless $self->valid;
1481	return if $self->in_memory != cf::MAP_SWAPPED;	2035	return unless $self->in_memory == cf::MAP_SWAPPED;
1482		2036
1483	$self->in_memory (cf::MAP_LOADING);	2037	$self->in_memory (cf::MAP_LOADING);
1484		2038
1485	$self->alloc;	2039	$self->alloc;
1486		2040
1487	$self->pre_load;	2041	$self->pre_load;
1488	Coro::cede;	2042	cf::cede_to_tick;
1489		2043
1490	$self->_load_objects ($self->{load_path}, 1)	2044	my $f = new_from_file cf::object::thawer $self->{load_path};
		2045	$f->skip_block;
		2046	$self->_load_objects ($f)
1491	or return;	2047	or return;
1492		2048
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2049	$self->post_load_original
1494	if delete $self->{load_original};	2050	if delete $self->{load_original};
1495		2051
1496	if (my $uniq = $self->uniq_path) {	2052	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;	2053	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {	2054	unless (aio_stat $uniq) {
		2055	if (my $f = new_from_file cf::object::thawer $uniq) {
1499	$self->clear_unique_items;	2056	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);	2057	$self->_load_objects ($f);
		2058	$f->resolve_delayed_derefs;
		2059	}
1501	}	2060	}
1502	}	2061	}
1503		2062
1504	Coro::cede;	2063	$f->resolve_delayed_derefs;
		2064
		2065	cf::cede_to_tick;
1505	# now do the right thing for maps	2066	# now do the right thing for maps
1506	$self->link_multipart_objects;	2067	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($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)	2068	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	2069	unless $self->difficulty;
1517	Coro::cede;	2070	cf::cede_to_tick;
		2071
		2072	unless ($self->{deny_activate}) {
		2073	$self->decay_objects;
		2074	$self->fix_auto_apply;
		2075	$self->update_buttons;
		2076	cf::cede_to_tick;
1518	$self->activate;	2077	$self->activate;
1519	Coro::cede;	2078	}
		2079
		2080	$self->{last_save} = $cf::RUNTIME;
		2081	$self->last_access ($cf::RUNTIME);
		2082
		2083	$self->in_memory (cf::MAP_ACTIVE);
1520	}	2084	}
1521		2085
1522	$self->post_load;	2086	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	2087	}
1527		2088
1528	sub customise_for {	2089	sub customise_for {
1529	my ($self, $ob) = @_;	2090	my ($self, $ob) = @_;
1530		2091
1531	return find "~" . $ob->name . "/" . $self->{path}	2092	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	2093	if $self->per_player;
1533		2094
		2095	# return find "?party/" . $ob->name . "/" . $self->{path}
		2096	# if $self->per_party;
		2097
1534	$self	2098	$self
1535	}	2099	}
1536		2100
1537	# find and load all maps in the 3x3 area around a map	2101	# find and load all maps in the 3x3 area around a map
1538	sub load_diag {	2102	sub load_neighbours {
1539	my ($map) = @_;	2103	my ($map) = @_;
1540		2104
1541	my @diag; # diagonal neighbours	2105	my @neigh; # diagonal neighbours
1542		2106
1543	for (0 .. 3) {	2107	for (0 .. 3) {
1544	my $neigh = $map->tile_path ($_)	2108	my $neigh = $map->tile_path ($_)
1545	or next;	2109	or next;
1546	$neigh = find $neigh, $map	2110	$neigh = find $neigh, $map
1547	or next;	2111	or next;
1548	$neigh->load;	2112	$neigh->load;
1549		2113
		2114	push @neigh,
1550	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2115	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1551	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2116	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1552	}	2117	}
1553		2118
1554	for (@diag) {	2119	for (grep defined $_->[0], @neigh) {
		2120	my ($path, $origin) = @$_;
1555	my $neigh = find @$_	2121	my $neigh = find $path, $origin
1556	or next;	2122	or next;
1557	$neigh->load;	2123	$neigh->load;
1558	}	2124	}
1559	}	2125	}
1560		2126
…		…
1565	}	2131	}
1566		2132
1567	sub do_load_sync {	2133	sub do_load_sync {
1568	my ($map) = @_;	2134	my ($map) = @_;
1569		2135
		2136	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2137	if $Coro::current == $Coro::main;
		2138
1570	cf::sync_job { $map->load };	2139	cf::sync_job { $map->load };
1571	}	2140	}
1572		2141
1573	our %MAP_PREFETCH;	2142	our %MAP_PREFETCH;
1574	our $MAP_PREFETCHER = undef;	2143	our $MAP_PREFETCHER = undef;
1575		2144
1576	sub find_async {	2145	sub find_async {
1577	my ($path, $origin) = @_;	2146	my ($path, $origin, $load) = @_;
1578		2147
1579	$path = normalise $path, $origin && $origin->{path};	2148	$path = normalise $path, $origin && $origin->{path};
1580		2149
1581	if (my $map = $cf::MAP{$path}) {	2150	if (my $map = $cf::MAP{$path}) {
1582	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2151	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1583	}	2152	}
1584		2153
1585	undef $MAP_PREFETCH{$path};	2154	$MAP_PREFETCH{$path} |= $load;
		2155
1586	$MAP_PREFETCHER ||= cf::async {	2156	$MAP_PREFETCHER ||= cf::async {
		2157	$Coro::current->{desc} = "map prefetcher";
		2158
1587	while (%MAP_PREFETCH) {	2159	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	2160	while (my ($k, $v) = each %MAP_PREFETCH) {
1589	my $map = find $path	2161	if (my $map = find $k) {
1590	or next;
1591	$map->load;	2162	$map->load if $v;
		2163	}
1592		2164
1593	delete $MAP_PREFETCH{$path};	2165	delete $MAP_PREFETCH{$k};
1594	}	2166	}
1595	}	2167	}
1596	undef $MAP_PREFETCHER;	2168	undef $MAP_PREFETCHER;
1597	};	2169	};
1598	$MAP_PREFETCHER->prio (6);	2170	$MAP_PREFETCHER->prio (6);
…		…
1601	}	2173	}
1602		2174
1603	sub save {	2175	sub save {
1604	my ($self) = @_;	2176	my ($self) = @_;
1605		2177
1606	my $lock = cf::lock_acquire "map_data:" . $self->path;	2178	my $lock = cf::lock_acquire "map_data:$self->{path}";
1607		2179
1608	$self->{last_save} = $cf::RUNTIME;	2180	$self->{last_save} = $cf::RUNTIME;
1609		2181
1610	return unless $self->dirty;	2182	return unless $self->dirty;
1611		2183
…		…
1617	return if $self->{deny_save};	2189	return if $self->{deny_save};
1618		2190
1619	local $self->{last_access} = $self->last_access;#d#	2191	local $self->{last_access} = $self->last_access;#d#
1620		2192
1621	cf::async {	2193	cf::async {
		2194	$Coro::current->{desc} = "map player save";
1622	$_->contr->save for $self->players;	2195	$_->contr->save for $self->players;
1623	};	2196	};
		2197
		2198	cf::get_slot 0.02;
1624		2199
1625	if ($uniq) {	2200	if ($uniq) {
1626	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2201	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1627	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2202	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1628	} else {	2203	} else {
…		…
1634	my ($self) = @_;	2209	my ($self) = @_;
1635		2210
1636	# save first because save cedes	2211	# save first because save cedes
1637	$self->save;	2212	$self->save;
1638		2213
1639	my $lock = cf::lock_acquire "map_data:" . $self->path;	2214	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2215
1641	return if $self->players;	2216	return if $self->players;
1642	return if $self->in_memory != cf::MAP_IN_MEMORY;	2217	return if $self->in_memory != cf::MAP_ACTIVE;
1643	return if $self->{deny_save};	2218	return if $self->{deny_save};
1644		2219
		2220	$self->in_memory (cf::MAP_SWAPPED);
		2221
		2222	$self->deactivate;
		2223	$_->clear_links_to ($self) for values %cf::MAP;
1645	$self->clear;	2224	$self->clear;
1646	$self->in_memory (cf::MAP_SWAPPED);
1647	}	2225	}
1648		2226
1649	sub reset_at {	2227	sub reset_at {
1650	my ($self) = @_;	2228	my ($self) = @_;
1651		2229
1652	# TODO: safety, remove and allow resettable per-player maps	2230	# 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};	2231	return 1e99 if $self->{deny_reset};
1655		2232
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2233	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2234	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		2235
…		…
1669	my ($self) = @_;	2246	my ($self) = @_;
1670		2247
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2248	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2249
1673	return if $self->players;	2250	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2251
1676	warn "resetting map ", $self->path;#d#	2252	warn "resetting map ", $self->path, "\n";
1677		2253
1678	$self->in_memory (cf::MAP_SWAPPED);	2254	$self->in_memory (cf::MAP_SWAPPED);
1679		2255
1680	# need to save uniques path	2256	# need to save uniques path
1681	unless ($self->{deny_save}) {	2257	unless ($self->{deny_save}) {
…		…
1685	if $uniq;	2261	if $uniq;
1686	}	2262	}
1687		2263
1688	delete $cf::MAP{$self->path};	2264	delete $cf::MAP{$self->path};
1689		2265
		2266	$self->deactivate;
		2267	$_->clear_links_to ($self) for values %cf::MAP;
1690	$self->clear;	2268	$self->clear;
1691
1692	$_->clear_links_to ($self) for values %cf::MAP;
1693		2269
1694	$self->unlink_save;	2270	$self->unlink_save;
1695	$self->destroy;	2271	$self->destroy;
1696	}	2272	}
1697		2273
1698	my $nuke_counter = "aaaa";	2274	my $nuke_counter = "aaaa";
1699		2275
1700	sub nuke {	2276	sub nuke {
1701	my ($self) = @_;	2277	my ($self) = @_;
1702		2278
		2279	{
		2280	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2281
1703	delete $cf::MAP{$self->path};	2282	delete $cf::MAP{$self->path};
1704		2283
1705	$self->unlink_save;	2284	$self->unlink_save;
1706		2285
1707	bless $self, "cf::map";	2286	bless $self, "cf::map";
1708	delete $self->{deny_reset};	2287	delete $self->{deny_reset};
1709	$self->{deny_save} = 1;	2288	$self->{deny_save} = 1;
1710	$self->reset_timeout (1);	2289	$self->reset_timeout (1);
1711	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2290	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1712		2291
1713	$cf::MAP{$self->path} = $self;	2292	$cf::MAP{$self->path} = $self;
		2293	}
1714		2294
1715	$self->reset; # polite request, might not happen	2295	$self->reset; # polite request, might not happen
		2296	}
		2297
		2298	=item $maps = cf::map::tmp_maps
		2299
		2300	Returns an arrayref with all map paths of currently instantiated and saved
		2301	maps. May block.
		2302
		2303	=cut
		2304
		2305	sub tmp_maps() {
		2306	[
		2307	map {
		2308	utf8::decode $_;
		2309	/\.map$/
		2310	? normalise $_
		2311	: ()
		2312	} @{ aio_readdir $TMPDIR or [] }
		2313	]
		2314	}
		2315
		2316	=item $maps = cf::map::random_maps
		2317
		2318	Returns an arrayref with all map paths of currently instantiated and saved
		2319	random maps. May block.
		2320
		2321	=cut
		2322
		2323	sub random_maps() {
		2324	[
		2325	map {
		2326	utf8::decode $_;
		2327	/\.map$/
		2328	? normalise "?random/$_"
		2329	: ()
		2330	} @{ aio_readdir $RANDOMDIR or [] }
		2331	]
1716	}	2332	}
1717		2333
1718	=item cf::map::unique_maps	2334	=item cf::map::unique_maps
1719		2335
1720	Returns an arrayref of paths of all shared maps that have	2336	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2337	instantiated unique items. May block.
1722		2338
1723	=cut	2339	=cut
1724		2340
1725	sub unique_maps() {	2341	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2342	[
1727	or return;	2343	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2344	utf8::decode $_;
1733	next if /\.pst$/;	2345	s/\.map$//; # TODO future compatibility hack
1734	next unless /^$PATH_SEP/o;	2346	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1735		2347	? ()
1736	push @paths, cf::map::normalise $_;	2348	: normalise $_
		2349	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2350	]
1738
1739	\@paths
1740	}	2351	}
1741		2352
1742	package cf;	2353	=item cf::map::static_maps
		2354
		2355	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2356	file in the shared directory excluding F</styles> and F</editor>). May
		2357	block.
		2358
		2359	=cut
		2360
		2361	sub static_maps() {
		2362	my @dirs = "";
		2363	my @maps;
		2364
		2365	while (@dirs) {
		2366	my $dir = shift @dirs;
		2367
		2368	next if $dir eq "/styles" || $dir eq "/editor";
		2369
		2370	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2371	or return;
		2372
		2373	for (@$files) {
		2374	s/\.map$// or next;
		2375	utf8::decode $_;
		2376	push @maps, "$dir/$_";
		2377	}
		2378
		2379	push @dirs, map "$dir/$_", @$dirs;
		2380	}
		2381
		2382	\@maps
		2383	}
1743		2384
1744	=back	2385	=back
1745		2386
1746	=head3 cf::object	2387	=head3 cf::object
1747		2388
…		…
1751		2392
1752	=over 4	2393	=over 4
1753		2394
1754	=item $ob->inv_recursive	2395	=item $ob->inv_recursive
1755		2396
1756	Returns the inventory of the object _and_ their inventories, recursively.	2397	Returns the inventory of the object I<and> their inventories, recursively,
		2398	but I<not> the object itself.
1757		2399
1758	=cut	2400	=cut
1759		2401
1760	sub inv_recursive_;	2402	sub inv_recursive_;
1761	sub inv_recursive_ {	2403	sub inv_recursive_ {
…		…
1764		2406
1765	sub inv_recursive {	2407	sub inv_recursive {
1766	inv_recursive_ inv $_[0]	2408	inv_recursive_ inv $_[0]
1767	}	2409	}
1768		2410
		2411	=item $ref = $ob->ref
		2412
		2413	Creates and returns a persistent reference to an object that can be stored as a string.
		2414
		2415	=item $ob = cf::object::deref ($refstring)
		2416
		2417	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2418	even if the object actually exists. May block.
		2419
		2420	=cut
		2421
		2422	sub deref {
		2423	my ($ref) = @_;
		2424
		2425	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2426	my ($uuid, $name) = ($1, $2);
		2427	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2428	or return;
		2429	$pl->ob->uuid eq $uuid
		2430	or return;
		2431
		2432	$pl->ob
		2433	} else {
		2434	warn "$ref: cannot resolve object reference\n";
		2435	undef
		2436	}
		2437	}
		2438
1769	package cf;	2439	package cf;
1770		2440
1771	=back	2441	=back
1772		2442
1773	=head3 cf::object::player	2443	=head3 cf::object::player
…		…
1779	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2449	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1780	can be C<undef>. Does the right thing when the player is currently in a	2450	can be C<undef>. Does the right thing when the player is currently in a
1781	dialogue with the given NPC character.	2451	dialogue with the given NPC character.
1782		2452
1783	=cut	2453	=cut
		2454
		2455	our $SAY_CHANNEL = {
		2456	id => "say",
		2457	title => "Map",
		2458	reply => "say ",
		2459	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2460	};
		2461
		2462	our $CHAT_CHANNEL = {
		2463	id => "chat",
		2464	title => "Chat",
		2465	reply => "chat ",
		2466	tooltip => "Player chat and shouts, global to the server.",
		2467	};
1784		2468
1785	# rough implementation of a future "reply" method that works	2469	# rough implementation of a future "reply" method that works
1786	# with dialog boxes.	2470	# with dialog boxes.
1787	#TODO: the first argument must go, split into a $npc->reply_to ( method	2471	#TODO: the first argument must go, split into a $npc->reply_to ( method
1788	sub cf::object::player::reply($$$;$) {	2472	sub cf::object::player::reply($$$;$) {
…		…
1790		2474
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2475	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2476
1793	if ($self->{record_replies}) {	2477	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2478	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2479
1795	} else {	2480	} else {
		2481	my $pl = $self->contr;
		2482
		2483	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2484	my $dialog = $pl->{npc_dialog};
		2485	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2486
		2487	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2488	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2489	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2490	}
1798	}	2491	}
		2492	}
		2493
		2494	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2495
		2496	=cut
		2497
		2498	sub cf::object::send_msg {
		2499	my $pl = shift->contr
		2500	or return;
		2501	$pl->send_msg (@_);
1799	}	2502	}
1800		2503
1801	=item $player_object->may ("access")	2504	=item $player_object->may ("access")
1802		2505
1803	Returns wether the given player is authorized to access resource "access"	2506	Returns wether the given player is authorized to access resource "access"
…		…
1816		2519
1817	=item $player_object->enter_link	2520	=item $player_object->enter_link
1818		2521
1819	Freezes the player and moves him/her to a special map (C<{link}>).	2522	Freezes the player and moves him/her to a special map (C<{link}>).
1820		2523
1821	The player should be reasonably safe there for short amounts of time. You	2524	The player should be reasonably safe there for short amounts of time (e.g.
1822	I<MUST> call C<leave_link> as soon as possible, though.	2525	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2526	though, as the palyer cannot control the character while it is on the link
		2527	map.
1823		2528
1824	Will never block.	2529	Will never block.
1825		2530
1826	=item $player_object->leave_link ($map, $x, $y)	2531	=item $player_object->leave_link ($map, $x, $y)
1827		2532
…		…
1850	$self->deactivate_recursive;	2555	$self->deactivate_recursive;
1851		2556
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2557	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2558
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2559	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2560	if $self->map && $self->map->{path} ne "{link}";
1856		2561
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2562	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2563	}
1859		2564
1860	sub cf::object::player::leave_link {	2565	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2566	my ($self, $map, $x, $y) = @_;
		2567
		2568	return unless $self->contr->active;
1862		2569
1863	my $link_pos = delete $self->{_link_pos};	2570	my $link_pos = delete $self->{_link_pos};
1864		2571
1865	unless ($map) {	2572	unless ($map) {
1866	# restore original map position	2573	# restore original map position
…		…
1877	($x, $y) = (-1, -1)	2584	($x, $y) = (-1, -1)
1878	unless (defined $x) && (defined $y);	2585	unless (defined $x) && (defined $y);
1879		2586
1880	# use -1 or undef as default coordinates, not 0, 0	2587	# use -1 or undef as default coordinates, not 0, 0
1881	($x, $y) = ($map->enter_x, $map->enter_y)	2588	($x, $y) = ($map->enter_x, $map->enter_y)
1882	if $x <=0 && $y <= 0;	2589	if $x <= 0 && $y <= 0;
1883		2590
1884	$map->load;	2591	$map->load;
1885	$map->load_diag;	2592	$map->load_neighbours;
1886		2593
1887	return unless $self->contr->active;	2594	return unless $self->contr->active;
1888	$self->activate_recursive;
1889		2595
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2596	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2597	$self->enter_map ($map, $x, $y);
1892	}
1893		2598
1894	cf::player->attach (	2599	# only activate afterwards, to support waiting in hooks
1895	on_logout => sub {	2600	$self->activate_recursive;
1896	my ($pl) = @_;	2601	}
1897		2602
1898	# abort map switching before logout	2603	=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		2604
1908	# try to abort aborted map switching on player login :)	2605	Moves the player to the given map-path and coordinates by first freezing
1909	# should happen only on crashes	2606	her, loading and preparing them map, calling the provided $check callback
1910	if ($pl->ob->{_link_pos}) {	2607	that has to return the map if sucecssful, and then unfreezes the player on
1911	$pl->ob->enter_link;	2608	the new (success) or old (failed) map position. In either case, $done will
1912	(async {	2609	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		2610
1926	=item $player_object->goto ($path, $x, $y)	2611	Note that $check will be called with a potentially non-loaded map, so if
		2612	it needs a loaded map it has to call C<< ->load >>.
1927		2613
1928	=cut	2614	=cut
		2615
		2616	our $GOTOGEN;
1929		2617
1930	sub cf::object::player::goto {	2618	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2619	my ($self, $path, $x, $y, $check, $done) = @_;
		2620
		2621	# do generation counting so two concurrent goto's will be executed in-order
		2622	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2623
1933	$self->enter_link;	2624	$self->enter_link;
1934		2625
1935	(async {	2626	(async {
		2627	$Coro::current->{desc} = "player::goto $path $x $y";
		2628
		2629	# *tag paths override both path and x|y
		2630	if ($path =~ /^\*(.*)$/) {
		2631	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2632	my $ob = $obs[rand @obs];
		2633
		2634	# see if we actually can go there
		2635	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2636	$ob = $obs[rand @obs];
		2637	} else {
		2638	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2639	}
		2640	# else put us there anyways for now #d#
		2641
		2642	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2643	} else {
		2644	($path, $x, $y) = (undef, undef, undef);
		2645	}
		2646	}
		2647
1936	my $map = eval {	2648	my $map = eval {
1937	my $map = cf::map::find $path;	2649	my $map = defined $path ? cf::map::find $path : undef;
		2650
		2651	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2652	$map = $map->customise_for ($self);
		2653	$map = $check->($map) if $check && $map;
		2654	} else {
		2655	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2656	}
		2657
1939	$map	2658	$map
		2659	};
		2660
		2661	if ($@) {
		2662	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2663	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2664	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2665
		2666	if ($gen == $self->{_goto_generation}) {
		2667	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2668	$self->leave_link ($map, $x, $y);
		2669	}
		2670
		2671	$done->() if $done;
1944	})->prio (1);	2672	})->prio (1);
1945	}	2673	}
1946		2674
1947	=item $player_object->enter_exit ($exit_object)	2675	=item $player_object->enter_exit ($exit_object)
1948		2676
…		…
1968	}	2696	}
1969		2697
1970	sub prepare_random_map {	2698	sub prepare_random_map {
1971	my ($exit) = @_;	2699	my ($exit) = @_;
1972		2700
1973	my $guard = cf::lock_acquire "exit_prepare:$exit";
1974
1975	# all this does is basically replace the /! path by	2701	# all this does is basically replace the /! path by
1976	# a new random map path (?random/...) with a seed	2702	# a new random map path (?random/...) with a seed
1977	# that depends on the exit object	2703	# that depends on the exit object
1978		2704
1979	my $rmp = parse_random_map_params $exit->msg;	2705	my $rmp = parse_random_map_params $exit->msg;
…		…
1981	if ($exit->map) {	2707	if ($exit->map) {
1982	$rmp->{region} = $exit->region->name;	2708	$rmp->{region} = $exit->region->name;
1983	$rmp->{origin_map} = $exit->map->path;	2709	$rmp->{origin_map} = $exit->map->path;
1984	$rmp->{origin_x} = $exit->x;	2710	$rmp->{origin_x} = $exit->x;
1985	$rmp->{origin_y} = $exit->y;	2711	$rmp->{origin_y} = $exit->y;
		2712
		2713	$exit->map->touch;
1986	}	2714	}
1987		2715
1988	$rmp->{random_seed} ||= $exit->random_seed;	2716	$rmp->{random_seed} ||= $exit->random_seed;
1989		2717
1990	my $data = cf::to_json $rmp;	2718	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1991	my $md5 = Digest::MD5::md5_hex $data;	2719	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2720	my $meta = "$RANDOMDIR/$md5.meta";
1993		2721
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2722	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2723	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2724	undef $fh;
1997	aio_rename "$meta~", $meta;	2725	aio_rename "$meta~", $meta;
1998		2726
		2727	my $slaying = "?random/$md5";
		2728
		2729	if ($exit->valid) {
1999	$exit->slaying ("?random/$md5");	2730	$exit->slaying ("?random/$md5");
2000	$exit->msg (undef);	2731	$exit->msg (undef);
		2732	}
2001	}	2733	}
2002	}	2734	}
2003		2735
2004	sub cf::object::player::enter_exit {	2736	sub cf::object::player::enter_exit {
2005	my ($self, $exit) = @_;	2737	my ($self, $exit) = @_;
2006		2738
2007	return unless $self->type == cf::PLAYER;	2739	return unless $self->type == cf::PLAYER;
2008		2740
2009	if ($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;	2741	$self->enter_link;
2021		2742
2022	(async {	2743	(async {
2023	$self->deactivate_recursive; # just to be sure	2744	$Coro::current->{desc} = "enter_exit";
		2745
2024	unless (eval {	2746	unless (eval {
		2747	$self->deactivate_recursive; # just to be sure
		2748
		2749	# random map handling
		2750	{
		2751	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2752
		2753	prepare_random_map $exit
		2754	if $exit->slaying eq "/!";
		2755	}
		2756
		2757	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2758	my $x = $exit->stats->hp;
		2759	my $y = $exit->stats->sp;
		2760
2025	$self->goto ($slaying, $hp, $sp);	2761	$self->goto ($map, $x, $y);
2026		2762
		2763	# if exit is damned, update players death & WoR home-position
		2764	$self->contr->savebed ($map, $x, $y)
		2765	if $exit->flag (cf::FLAG_DAMNED);
		2766
2027	1;	2767	1
2028	}) {	2768	}) {
2029	$self->message ("Something went wrong deep within the crossfire server. "	2769	$self->message ("Something went wrong deep within the deliantra server. "
2030	. "I'll try to bring you back to the map you were before. "	2770	. "I'll try to bring you back to the map you were before. "
2031	. "Please report this to the dungeon master!",	2771	. "Please report this to the dungeon master!",
2032	cf::NDI_UNIQUE | cf::NDI_RED);	2772	cf::NDI_UNIQUE | cf::NDI_RED);
2033		2773
2034	warn "ERROR in enter_exit: $@";	2774	warn "ERROR in enter_exit: $@";
…		…
2053		2793
2054	utf8::encode $text;	2794	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2795	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2796	}
2057		2797
		2798	=item $client->send_big_packet ($pkt)
		2799
		2800	Like C<send_packet>, but tries to compress large packets, and fragments
		2801	them as required.
		2802
		2803	=cut
		2804
		2805	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2806
		2807	sub cf::client::send_big_packet {
		2808	my ($self, $pkt) = @_;
		2809
		2810	# try lzf for large packets
		2811	$pkt = "lzf " . Compress::LZF::compress $pkt
		2812	if 1024 <= length $pkt and $self->{can_lzf};
		2813
		2814	# split very large packets
		2815	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2816	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2817	$pkt = "frag";
		2818	}
		2819
		2820	$self->send_packet ($pkt);
		2821	}
		2822
		2823	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2824
		2825	Send a drawinfo or msg packet to the client, formatting the msg for the
		2826	client if neccessary. C<$type> should be a string identifying the type of
		2827	the message, with C<log> being the default. If C<$color> is negative, suppress
		2828	the message unless the client supports the msg packet.
		2829
		2830	=cut
		2831
		2832	# non-persistent channels (usually the info channel)
		2833	our %CHANNEL = (
		2834	"c/motd" => {
		2835	id => "infobox",
		2836	title => "MOTD",
		2837	reply => undef,
		2838	tooltip => "The message of the day",
		2839	},
		2840	"c/identify" => {
		2841	id => "infobox",
		2842	title => "Identify",
		2843	reply => undef,
		2844	tooltip => "Items recently identified",
		2845	},
		2846	"c/examine" => {
		2847	id => "infobox",
		2848	title => "Examine",
		2849	reply => undef,
		2850	tooltip => "Signs and other items you examined",
		2851	},
		2852	"c/shopinfo" => {
		2853	id => "infobox",
		2854	title => "Shop Info",
		2855	reply => undef,
		2856	tooltip => "What your bargaining skill tells you about the shop",
		2857	},
		2858	"c/book" => {
		2859	id => "infobox",
		2860	title => "Book",
		2861	reply => undef,
		2862	tooltip => "The contents of a note or book",
		2863	},
		2864	"c/lookat" => {
		2865	id => "infobox",
		2866	title => "Look",
		2867	reply => undef,
		2868	tooltip => "What you saw there",
		2869	},
		2870	"c/who" => {
		2871	id => "infobox",
		2872	title => "Players",
		2873	reply => undef,
		2874	tooltip => "Shows players who are currently online",
		2875	},
		2876	"c/body" => {
		2877	id => "infobox",
		2878	title => "Body Parts",
		2879	reply => undef,
		2880	tooltip => "Shows which body parts you posess and are available",
		2881	},
		2882	"c/statistics" => {
		2883	id => "infobox",
		2884	title => "Statistics",
		2885	reply => undef,
		2886	tooltip => "Shows your primary statistics",
		2887	},
		2888	"c/skills" => {
		2889	id => "infobox",
		2890	title => "Skills",
		2891	reply => undef,
		2892	tooltip => "Shows your experience per skill and item power",
		2893	},
		2894	"c/shopitems" => {
		2895	id => "infobox",
		2896	title => "Shop Items",
		2897	reply => undef,
		2898	tooltip => "Shows the items currently for sale in this shop",
		2899	},
		2900	"c/resistances" => {
		2901	id => "infobox",
		2902	title => "Resistances",
		2903	reply => undef,
		2904	tooltip => "Shows your resistances",
		2905	},
		2906	"c/pets" => {
		2907	id => "infobox",
		2908	title => "Pets",
		2909	reply => undef,
		2910	tooltip => "Shows information abotu your pets/a specific pet",
		2911	},
		2912	"c/perceiveself" => {
		2913	id => "infobox",
		2914	title => "Perceive Self",
		2915	reply => undef,
		2916	tooltip => "You gained detailed knowledge about yourself",
		2917	},
		2918	"c/uptime" => {
		2919	id => "infobox",
		2920	title => "Uptime",
		2921	reply => undef,
		2922	tooltip => "How long the server has been running since last restart",
		2923	},
		2924	"c/mapinfo" => {
		2925	id => "infobox",
		2926	title => "Map Info",
		2927	reply => undef,
		2928	tooltip => "Information related to the maps",
		2929	},
		2930	"c/party" => {
		2931	id => "party",
		2932	title => "Party",
		2933	reply => "gsay ",
		2934	tooltip => "Messages and chat related to your party",
		2935	},
		2936	"c/death" => {
		2937	id => "death",
		2938	title => "Death",
		2939	reply => undef,
		2940	tooltip => "Reason for and more info about your most recent death",
		2941	},
		2942	"c/say" => $SAY_CHANNEL,
		2943	"c/chat" => $CHAT_CHANNEL,
		2944	);
		2945
		2946	sub cf::client::send_msg {
		2947	my ($self, $channel, $msg, $color, @extra) = @_;
		2948
		2949	$msg = $self->pl->expand_cfpod ($msg)
		2950	unless $color & cf::NDI_VERBATIM;
		2951
		2952	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2953
		2954	# check predefined channels, for the benefit of C
		2955	if ($CHANNEL{$channel}) {
		2956	$channel = $CHANNEL{$channel};
		2957
		2958	$self->ext_msg (channel_info => $channel);
		2959	$channel = $channel->{id};
		2960
		2961	} elsif (ref $channel) {
		2962	# send meta info to client, if not yet sent
		2963	unless (exists $self->{channel}{$channel->{id}}) {
		2964	$self->{channel}{$channel->{id}} = $channel;
		2965	$self->ext_msg (channel_info => $channel);
		2966	}
		2967
		2968	$channel = $channel->{id};
		2969	}
		2970
		2971	return unless @extra || length $msg;
		2972
		2973	# default colour, mask it out
		2974	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2975	if $color & cf::NDI_DEF;
		2976
		2977	my $pkt = "msg "
		2978	. $self->{json_coder}->encode (
		2979	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2980	);
		2981
		2982	$self->send_big_packet ($pkt);
		2983	}
		2984
2058	=item $client->ext_event ($type, %msg)	2985	=item $client->ext_msg ($type, @msg)
2059		2986
2060	Sends an exti event to the client.	2987	Sends an ext event to the client.
2061		2988
2062	=cut	2989	=cut
2063		2990
2064	sub cf::client::ext_event($$%) {	2991	sub cf::client::ext_msg($$@) {
2065	my ($self, $type, %msg) = @_;	2992	my ($self, $type, @msg) = @_;
2066		2993
		2994	if ($self->extcmd == 2) {
		2995	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2996	} elsif ($self->extcmd == 1) { # TODO: remove
2067	$msg{msgtype} = "event_$type";	2997	push @msg, msgtype => "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	2998	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2999	}
		3000	}
		3001
		3002	=item $client->ext_reply ($msgid, @msg)
		3003
		3004	Sends an ext reply to the client.
		3005
		3006	=cut
		3007
		3008	sub cf::client::ext_reply($$@) {
		3009	my ($self, $id, @msg) = @_;
		3010
		3011	if ($self->extcmd == 2) {
		3012	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3013	} elsif ($self->extcmd == 1) {
		3014	#TODO: version 1, remove
		3015	unshift @msg, msgtype => "reply", msgid => $id;
		3016	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3017	}
2069	}	3018	}
2070		3019
2071	=item $success = $client->query ($flags, "text", \&cb)	3020	=item $success = $client->query ($flags, "text", \&cb)
2072		3021
2073	Queues a query to the client, calling the given callback with	3022	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>,	3023	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>.	3024	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		3025
2077	Queries can fail, so check the return code. Or don't, as queries will become	3026	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	3027	become reliable at some point in the future.
2079		3028
2080	=cut	3029	=cut
2081		3030
2082	sub cf::client::query {	3031	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	3032	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	3040	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3041	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		3042
2094	$self->send_packet ($self->{query_queue}[0][0])	3043	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	3044	if @{ $self->{query_queue} } == 1;
		3045
		3046	1
2096	}	3047	}
2097		3048
2098	cf::client->attach (	3049	cf::client->attach (
		3050	on_connect => sub {
		3051	my ($ns) = @_;
		3052
		3053	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3054	},
2099	on_reply => sub {	3055	on_reply => sub {
2100	my ($ns, $msg) = @_;	3056	my ($ns, $msg) = @_;
2101		3057
2102	# this weird shuffling is so that direct followup queries	3058	# this weird shuffling is so that direct followup queries
2103	# get handled first	3059	# get handled first
…		…
2115	} else {	3071	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3072	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	3073	}
2118	}	3074	}
2119	},	3075	},
		3076	on_exticmd => sub {
		3077	my ($ns, $buf) = @_;
		3078
		3079	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3080
		3081	if (ref $msg) {
		3082	my ($type, $reply, @payload) =
		3083	"ARRAY" eq ref $msg
		3084	? @$msg
		3085	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3086
		3087	my @reply;
		3088
		3089	if (my $cb = $EXTICMD{$type}) {
		3090	@reply = $cb->($ns, @payload);
		3091	}
		3092
		3093	$ns->ext_reply ($reply, @reply)
		3094	if $reply;
		3095
		3096	} else {
		3097	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3098	}
		3099
		3100	cf::override;
		3101	},
2120	);	3102	);
2121		3103
2122	=item $client->async (\&cb)	3104	=item $client->async (\&cb)
2123		3105
2124	Create a new coroutine, running the specified callback. The coroutine will	3106	Create a new coroutine, running the specified callback. The coroutine will
…		…
2165	our $safe = new Safe "safe";	3147	our $safe = new Safe "safe";
2166	our $safe_hole = new Safe::Hole;	3148	our $safe_hole = new Safe::Hole;
2167		3149
2168	$SIG{FPE} = 'IGNORE';	3150	$SIG{FPE} = 'IGNORE';
2169		3151
2170	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3152	$safe->permit_only (Opcode::opset qw(
		3153	:base_core :base_mem :base_orig :base_math :base_loop
		3154	grepstart grepwhile mapstart mapwhile
		3155	sort time
		3156	));
2171		3157
2172	# here we export the classes and methods available to script code	3158	# here we export the classes and methods available to script code
2173		3159
2174	=pod	3160	=pod
2175		3161
2176	The following functions and methods are available within a safe environment:	3162	The following functions and methods are available within a safe environment:
2177		3163
2178	cf::object contr pay_amount pay_player map	3164	cf::object
		3165	contr pay_amount pay_player map x y force_find force_add destroy
		3166	insert remove name archname title slaying race decrease split
		3167	value
		3168
2179	cf::object::player player	3169	cf::object::player
2180	cf::player peaceful	3170	player
2181	cf::map trigger	3171
		3172	cf::player
		3173	peaceful
		3174
		3175	cf::map
		3176	trigger
2182		3177
2183	=cut	3178	=cut
2184		3179
2185	for (	3180	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	3181	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3182	insert remove inv nrof name archname title slaying race
		3183	decrease split destroy change_exp value msg lore send_msg)],
2187	["cf::object::player" => qw(player)],	3184	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	3185	["cf::player" => qw(peaceful send_msg)],
2189	["cf::map" => qw(trigger)],	3186	["cf::map" => qw(trigger)],
2190	) {	3187	) {
2191	no strict 'refs';	3188	no strict 'refs';
2192	my ($pkg, @funs) = @$_;	3189	my ($pkg, @funs) = @$_;
2193	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3190	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2211		3208
2212	my $qcode = $code;	3209	my $qcode = $code;
2213	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3210	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2214	$qcode =~ s/\n/\\n/g;	3211	$qcode =~ s/\n/\\n/g;
2215		3212
		3213	%vars = (_dummy => 0) unless %vars;
		3214
		3215	my @res;
2216	local $_;	3216	local $_;
2217	local @safe::cf::_safe_eval_args = values %vars;
2218		3217
2219	my $eval =	3218	my $eval =
2220	"do {\n"	3219	"do {\n"
2221	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3220	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2222	. "#line 0 \"{$qcode}\"\n"	3221	. "#line 0 \"{$qcode}\"\n"
2223	. $code	3222	. $code
2224	. "\n}"	3223	. "\n}"
2225	;	3224	;
2226		3225
		3226	if ($CFG{safe_eval}) {
2227	sub_generation_inc;	3227	sub_generation_inc;
		3228	local @safe::cf::_safe_eval_args = values %vars;
2228	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3229	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2229	sub_generation_inc;	3230	sub_generation_inc;
		3231	} else {
		3232	local @cf::_safe_eval_args = values %vars;
		3233	@res = wantarray ? eval eval : scalar eval $eval;
		3234	}
2230		3235
2231	if ($@) {	3236	if ($@) {
2232	warn "$@";	3237	warn "$@";
2233	warn "while executing safe code '$code'\n";	3238	warn "while executing safe code '$code'\n";
2234	warn "with arguments " . (join " ", %vars) . "\n";	3239	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2253	=cut	3258	=cut
2254		3259
2255	sub register_script_function {	3260	sub register_script_function {
2256	my ($fun, $cb) = @_;	3261	my ($fun, $cb) = @_;
2257		3262
2258	no strict 'refs';	3263	$fun = "safe::$fun" if $CFG{safe_eval};
2259	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3264	*$fun = $safe_hole->wrap ($cb);
2260	}	3265	}
2261		3266
2262	=back	3267	=back
2263		3268
2264	=cut	3269	=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	local $SIG{__WARN__};
2420	eval {
2421	local $SIG{__DIE__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	warn $@ if $@;
2429	_exit 0;
2430	}
2431	}
2432
2433
2434		3270
2435	#############################################################################	3271	#############################################################################
2436	# the server's init and main functions	3272	# the server's init and main functions
2437		3273
2438	sub load_facedata($) {	3274	sub load_facedata($) {
2439	my ($path) = @_;	3275	my ($path) = @_;
		3276
		3277	# HACK to clear player env face cache, we need some signal framework
		3278	# for this (global event?)
		3279	%ext::player_env::MUSIC_FACE_CACHE = ();
		3280
		3281	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2440		3282
2441	warn "loading facedata from $path\n";	3283	warn "loading facedata from $path\n";
2442		3284
2443	my $facedata;	3285	my $facedata;
2444	0 < aio_load $path, $facedata	3286	0 < aio_load $path, $facedata
…		…
2447	$facedata = Coro::Storable::thaw $facedata;	3289	$facedata = Coro::Storable::thaw $facedata;
2448		3290
2449	$facedata->{version} == 2	3291	$facedata->{version} == 2
2450	or cf::cleanup "$path: version mismatch, cannot proceed.";	3292	or cf::cleanup "$path: version mismatch, cannot proceed.";
2451		3293
		3294	# patch in the exptable
		3295	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3296	$facedata->{resource}{"res/exp_table"} = {
		3297	type => FT_RSRC,
		3298	data => $exp_table,
		3299	hash => (Digest::MD5::md5 $exp_table),
		3300	};
		3301	cf::cede_to_tick;
		3302
2452	{	3303	{
2453	my $faces = $facedata->{faceinfo};	3304	my $faces = $facedata->{faceinfo};
2454		3305
2455	while (my ($face, $info) = each %$faces) {	3306	while (my ($face, $info) = each %$faces) {
2456	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3307	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3308
2457	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3309	cf::face::set_visibility $idx, $info->{visibility};
		3310	cf::face::set_magicmap $idx, $info->{magicmap};
2458	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3311	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2459	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3312	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2460	Coro::cede;	3313
		3314	cf::cede_to_tick;
2461	}	3315	}
2462		3316
2463	while (my ($face, $info) = each %$faces) {	3317	while (my ($face, $info) = each %$faces) {
2464	next unless $info->{smooth};	3318	next unless $info->{smooth};
		3319
2465	my $idx = cf::face::find $face	3320	my $idx = cf::face::find $face
2466	or next;	3321	or next;
		3322
2467	if (my $smooth = cf::face::find $info->{smooth}) {	3323	if (my $smooth = cf::face::find $info->{smooth}) {
		3324	cf::face::set_smooth $idx, $smooth;
2468	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3325	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2469	} else {	3326	} else {
2470	warn "smooth face '$info->{smooth}' not found for face '$face'";	3327	warn "smooth face '$info->{smooth}' not found for face '$face'";
2471	}	3328	}
2472	Coro::cede;	3329
		3330	cf::cede_to_tick;
2473	}	3331	}
2474	}	3332	}
2475		3333
2476	{	3334	{
2477	my $anims = $facedata->{animinfo};	3335	my $anims = $facedata->{animinfo};
2478		3336
2479	while (my ($anim, $info) = each %$anims) {	3337	while (my ($anim, $info) = each %$anims) {
2480	cf::anim::set $anim, $info->{frames}, $info->{facings};	3338	cf::anim::set $anim, $info->{frames}, $info->{facings};
2481	Coro::cede;	3339	cf::cede_to_tick;
2482	}	3340	}
2483		3341
2484	cf::anim::invalidate_all; # d'oh	3342	cf::anim::invalidate_all; # d'oh
2485	}	3343	}
2486		3344
		3345	{
		3346	my $res = $facedata->{resource};
		3347
		3348	while (my ($name, $info) = each %$res) {
		3349	if (defined $info->{type}) {
		3350	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3351
		3352	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3353	cf::face::set_type $idx, $info->{type};
		3354	} else {
		3355	$RESOURCE{$name} = $info;
		3356	}
		3357
		3358	cf::cede_to_tick;
		3359	}
		3360	}
		3361
		3362	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3363
2487	1	3364	1
2488	}	3365	}
2489		3366
		3367	cf::global->attach (on_resource_update => sub {
		3368	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3369	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3370
		3371	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3372	my $sound = $soundconf->{compat}[$_]
		3373	or next;
		3374
		3375	my $face = cf::face::find "sound/$sound->[1]";
		3376	cf::sound::set $sound->[0] => $face;
		3377	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3378	}
		3379
		3380	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3381	my $face = cf::face::find "sound/$v";
		3382	cf::sound::set $k => $face;
		3383	}
		3384	}
		3385	});
		3386
		3387	register_exticmd fx_want => sub {
		3388	my ($ns, $want) = @_;
		3389
		3390	while (my ($k, $v) = each %$want) {
		3391	$ns->fx_want ($k, $v);
		3392	}
		3393	};
		3394
		3395	sub load_resource_file($) {
		3396	my $guard = lock_acquire "load_resource_file";
		3397
		3398	my $status = load_resource_file_ $_[0];
		3399	get_slot 0.1, 100;
		3400	cf::arch::commit_load;
		3401
		3402	$status
		3403	}
		3404
		3405	sub reload_regions {
		3406	# HACK to clear player env face cache, we need some signal framework
		3407	# for this (global event?)
		3408	%ext::player_env::MUSIC_FACE_CACHE = ();
		3409
		3410	load_resource_file "$MAPDIR/regions"
		3411	or die "unable to load regions file\n";
		3412
		3413	for (cf::region::list) {
		3414	$_->{match} = qr/$_->{match}/
		3415	if exists $_->{match};
		3416	}
		3417	}
		3418
2490	sub reload_facedata {	3419	sub reload_facedata {
2491	load_facedata sprintf "%s/facedata", cf::datadir	3420	load_facedata "$DATADIR/facedata"
2492	or die "unable to load facedata\n";	3421	or die "unable to load facedata\n";
2493	}	3422	}
2494		3423
2495	sub reload_regions {
2496	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2497	or die "unable to load regions file\n";
2498	}
2499
2500	sub reload_archetypes {	3424	sub reload_archetypes {
2501	load_resource_file sprintf "%s/archetypes", cf::datadir	3425	load_resource_file "$DATADIR/archetypes"
2502	or die "unable to load archetypes\n";	3426	or die "unable to load archetypes\n";
2503	}	3427	}
2504		3428
2505	sub reload_treasures {	3429	sub reload_treasures {
2506	load_resource_file sprintf "%s/treasures", cf::datadir	3430	load_resource_file "$DATADIR/treasures"
2507	or die "unable to load treasurelists\n";	3431	or die "unable to load treasurelists\n";
2508	}	3432	}
2509		3433
2510	sub reload_resources {	3434	sub reload_resources {
2511	warn "reloading resource files...\n";	3435	warn "reloading resource files...\n";
2512		3436
2513	reload_regions;
2514	reload_facedata;	3437	reload_facedata;
2515	reload_archetypes;	3438	reload_archetypes;
		3439	reload_regions;
2516	reload_treasures;	3440	reload_treasures;
2517		3441
2518	warn "finished reloading resource files\n";	3442	warn "finished reloading resource files\n";
2519	}	3443	}
2520		3444
2521	sub init {	3445	sub reload_config {
2522	reload_resources;	3446	warn "reloading config file...\n";
2523	}
2524		3447
2525	sub cfg_load {
2526	open my $fh, "<:utf8", cf::confdir . "/config"	3448	open my $fh, "<:utf8", "$CONFDIR/config"
2527	or return;	3449	or return;
2528		3450
2529	local $/;	3451	local $/;
2530	*CFG = YAML::Syck::Load <$fh>;	3452	*CFG = YAML::XS::Load scalar <$fh>;
2531		3453
2532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3454	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2533		3455
2534	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3456	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2535	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3457	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2539	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3461	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2540	and die "WARNING: m(un)lockall failed: $!\n";	3462	and die "WARNING: m(un)lockall failed: $!\n";
2541	};	3463	};
2542	warn $@ if $@;	3464	warn $@ if $@;
2543	}	3465	}
		3466
		3467	warn "finished reloading resource files\n";
		3468	}
		3469
		3470	sub pidfile() {
		3471	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3472	or die "$PIDFILE: $!";
		3473	flock $fh, &Fcntl::LOCK_EX
		3474	or die "$PIDFILE: flock: $!";
		3475	$fh
		3476	}
		3477
		3478	# make sure only one server instance is running at any one time
		3479	sub atomic {
		3480	my $fh = pidfile;
		3481
		3482	my $pid = <$fh>;
		3483	kill 9, $pid if $pid > 0;
		3484
		3485	seek $fh, 0, 0;
		3486	print $fh $$;
		3487	}
		3488
		3489	sub main_loop {
		3490	warn "EV::loop starting\n";
		3491	if (1) {
		3492	EV::loop;
		3493	}
		3494	warn "EV::loop returned\n";
		3495	goto &main_loop unless $REALLY_UNLOOP;
2544	}	3496	}
2545		3497
2546	sub main {	3498	sub main {
		3499	cf::init_globals; # initialise logging
		3500
		3501	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3502	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3503	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3504	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3505
		3506	cf::init_experience;
		3507	cf::init_anim;
		3508	cf::init_attackmess;
		3509	cf::init_dynamic;
		3510
		3511	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3512
2547	# we must not ever block the main coroutine	3513	# we must not ever block the main coroutine
2548	local $Coro::idle = sub {	3514	local $Coro::idle = sub {
2549	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3515	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2550	(async {	3516	(async {
2551	Event::one_event;	3517	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3518	EV::loop EV::LOOP_ONESHOT;
2552	})->prio (Coro::PRIO_MAX);	3519	})->prio (Coro::PRIO_MAX);
2553	};	3520	};
2554		3521
2555	cfg_load;	3522	evthread_start IO::AIO::poll_fileno;
		3523
		3524	cf::sync_job {
		3525	cf::load_settings;
		3526	cf::load_materials;
		3527
		3528	reload_resources;
		3529	reload_config;
2556	db_init;	3530	db_init;
		3531
		3532	cf::init_uuid;
		3533	cf::init_signals;
		3534	cf::init_commands;
		3535	cf::init_skills;
		3536
		3537	cf::init_beforeplay;
		3538
		3539	atomic;
		3540
2557	load_extensions;	3541	load_extensions;
2558		3542
2559	$TICK_WATCHER->start;	3543	utime time, time, $RUNTIMEFILE;
2560	Event::loop;	3544
		3545	# no (long-running) fork's whatsoever before this point(!)
		3546	use POSIX ();
		3547	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3548
		3549	(pop @POST_INIT)->(0) while @POST_INIT;
		3550	};
		3551
		3552	main_loop;
2561	}	3553	}
2562		3554
2563	#############################################################################	3555	#############################################################################
2564	# initialisation and cleanup	3556	# initialisation and cleanup
2565		3557
2566	# install some emergency cleanup handlers	3558	# install some emergency cleanup handlers
2567	BEGIN {	3559	BEGIN {
		3560	our %SIGWATCHER = ();
2568	for my $signal (qw(INT HUP TERM)) {	3561	for my $signal (qw(INT HUP TERM)) {
2569	Event->signal (	3562	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2570	reentrant => 0,
2571	data => WF_AUTOCANCEL,
2572	signal => $signal,
2573	prio => 0,
2574	cb => sub {
2575	cf::cleanup "SIG$signal";	3563	cf::cleanup "SIG$signal";
2576	},
2577	);	3564	};
		3565	}
		3566	}
		3567
		3568	sub write_runtime_sync {
		3569	# first touch the runtime file to show we are still running:
		3570	# the fsync below can take a very very long time.
		3571
		3572	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3573
		3574	my $guard = cf::lock_acquire "write_runtime";
		3575
		3576	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3577	or return;
		3578
		3579	my $value = $cf::RUNTIME + 90 + 10;
		3580	# 10 is the runtime save interval, for a monotonic clock
		3581	# 60 allows for the watchdog to kill the server.
		3582
		3583	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3584	and return;
		3585
		3586	# always fsync - this file is important
		3587	aio_fsync $fh
		3588	and return;
		3589
		3590	# touch it again to show we are up-to-date
		3591	aio_utime $fh, undef, undef;
		3592
		3593	close $fh
		3594	or return;
		3595
		3596	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3597	and return;
		3598
		3599	warn "runtime file written.\n";
		3600
2578	}	3601	1
		3602	}
		3603
		3604	our $uuid_lock;
		3605	our $uuid_skip;
		3606
		3607	sub write_uuid_sync($) {
		3608	$uuid_skip ||= $_[0];
		3609
		3610	return if $uuid_lock;
		3611	local $uuid_lock = 1;
		3612
		3613	my $uuid = "$LOCALDIR/uuid";
		3614
		3615	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3616	or return;
		3617
		3618	my $value = uuid_seq uuid_cur;
		3619
		3620	unless ($value) {
		3621	warn "cowardly refusing to write zero uuid value!\n";
		3622	return;
		3623	}
		3624
		3625	my $value = uuid_str $value + $uuid_skip;
		3626	$uuid_skip = 0;
		3627
		3628	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3629	and return;
		3630
		3631	# always fsync - this file is important
		3632	aio_fsync $fh
		3633	and return;
		3634
		3635	close $fh
		3636	or return;
		3637
		3638	aio_rename "$uuid~", $uuid
		3639	and return;
		3640
		3641	warn "uuid file written ($value).\n";
		3642
		3643	1
		3644
		3645	}
		3646
		3647	sub write_uuid($$) {
		3648	my ($skip, $sync) = @_;
		3649
		3650	$sync ? write_uuid_sync $skip
		3651	: async { write_uuid_sync $skip };
2579	}	3652	}
2580		3653
2581	sub emergency_save() {	3654	sub emergency_save() {
2582	my $freeze_guard = cf::freeze_mainloop;	3655	my $freeze_guard = cf::freeze_mainloop;
2583		3656
2584	warn "enter emergency perl save\n";	3657	warn "emergency_perl_save: enter\n";
2585		3658
2586	cf::sync_job {	3659	cf::sync_job {
		3660	# this is a trade-off: we want to be very quick here, so
		3661	# save all maps without fsync, and later call a global sync
		3662	# (which in turn might be very very slow)
		3663	local $USE_FSYNC = 0;
		3664
2587	# use a peculiar iteration method to avoid tripping on perl	3665	# use a peculiar iteration method to avoid tripping on perl
2588	# refcount bugs in for. also avoids problems with players	3666	# refcount bugs in for. also avoids problems with players
2589	# and maps saved/destroyed asynchronously.	3667	# and maps saved/destroyed asynchronously.
2590	warn "begin emergency player save\n";	3668	warn "emergency_perl_save: begin player save\n";
2591	for my $login (keys %cf::PLAYER) {	3669	for my $login (keys %cf::PLAYER) {
2592	my $pl = $cf::PLAYER{$login} or next;	3670	my $pl = $cf::PLAYER{$login} or next;
2593	$pl->valid or next;	3671	$pl->valid or next;
		3672	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2594	$pl->save;	3673	$pl->save;
2595	}	3674	}
2596	warn "end emergency player save\n";	3675	warn "emergency_perl_save: end player save\n";
2597		3676
2598	warn "begin emergency map save\n";	3677	warn "emergency_perl_save: begin map save\n";
2599	for my $path (keys %cf::MAP) {	3678	for my $path (keys %cf::MAP) {
2600	my $map = $cf::MAP{$path} or next;	3679	my $map = $cf::MAP{$path} or next;
2601	$map->valid or next;	3680	$map->valid or next;
2602	$map->save;	3681	$map->save;
2603	}	3682	}
2604	warn "end emergency map save\n";	3683	warn "emergency_perl_save: end map save\n";
2605		3684
2606	warn "begin emergency database checkpoint\n";	3685	warn "emergency_perl_save: begin database checkpoint\n";
2607	BDB::db_env_txn_checkpoint $DB_ENV;	3686	BDB::db_env_txn_checkpoint $DB_ENV;
2608	warn "end emergency database checkpoint\n";	3687	warn "emergency_perl_save: end database checkpoint\n";
		3688
		3689	warn "emergency_perl_save: begin write uuid\n";
		3690	write_uuid_sync 1;
		3691	warn "emergency_perl_save: end write uuid\n";
2609	};	3692	};
2610		3693
		3694	warn "emergency_perl_save: starting sync()\n";
		3695	IO::AIO::aio_sync sub {
		3696	warn "emergency_perl_save: finished sync()\n";
		3697	};
		3698
2611	warn "leave emergency perl save\n";	3699	warn "emergency_perl_save: leave\n";
2612	}	3700	}
2613		3701
2614	sub post_cleanup {	3702	sub post_cleanup {
2615	my ($make_core) = @_;	3703	my ($make_core) = @_;
2616		3704
2617	warn Carp::longmess "post_cleanup backtrace"	3705	warn Carp::longmess "post_cleanup backtrace"
2618	if $make_core;	3706	if $make_core;
		3707
		3708	my $fh = pidfile;
		3709	unlink $PIDFILE if <$fh> == $$;
		3710	}
		3711
		3712	# a safer delete_package, copied from Symbol
		3713	sub clear_package($) {
		3714	my $pkg = shift;
		3715
		3716	# expand to full symbol table name if needed
		3717	unless ($pkg =~ /^main::.*::$/) {
		3718	$pkg = "main$pkg" if $pkg =~ /^::/;
		3719	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3720	$pkg .= '::' unless $pkg =~ /::$/;
		3721	}
		3722
		3723	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3724	my $stem_symtab = *{$stem}{HASH};
		3725
		3726	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3727	or return;
		3728
		3729	# clear all symbols
		3730	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3731	for my $name (keys %$leaf_symtab) {
		3732	_gv_clear *{"$pkg$name"};
		3733	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3734	}
		3735	warn "cleared package $pkg\n";#d#
2619	}	3736	}
2620		3737
2621	sub do_reload_perl() {	3738	sub do_reload_perl() {
2622	# can/must only be called in main	3739	# can/must only be called in main
2623	if ($Coro::current != $Coro::main) {	3740	if ($Coro::current != $Coro::main) {
2624	warn "can only reload from main coroutine";	3741	warn "can only reload from main coroutine";
2625	return;	3742	return;
2626	}	3743	}
2627		3744
		3745	return if $RELOAD++;
		3746
		3747	my $t1 = EV::time;
		3748
		3749	while ($RELOAD) {
2628	warn "reloading...";	3750	warn "reloading...";
2629		3751
2630	warn "entering sync_job";	3752	warn "entering sync_job";
2631		3753
2632	cf::sync_job {	3754	cf::sync_job {
2633	cf::write_runtime; # external watchdog should not bark	3755	cf::write_runtime_sync; # external watchdog should not bark
2634	cf::emergency_save;	3756	cf::emergency_save;
2635	cf::write_runtime; # external watchdog should not bark	3757	cf::write_runtime_sync; # external watchdog should not bark
2636		3758
2637	warn "syncing database to disk";	3759	warn "syncing database to disk";
2638	BDB::db_env_txn_checkpoint $DB_ENV;	3760	BDB::db_env_txn_checkpoint $DB_ENV;
2639		3761
2640	# if anything goes wrong in here, we should simply crash as we already saved	3762	# if anything goes wrong in here, we should simply crash as we already saved
2641		3763
2642	warn "cancelling all WF_AUTOCANCEL watchers";
2643	for (Event::all_watchers) {
2644	$_->cancel if $_->data & WF_AUTOCANCEL;
2645	}
2646
2647	warn "flushing outstanding aio requests";	3764	warn "flushing outstanding aio requests";
2648	for (;;) {
2649	BDB::flush;
2650	IO::AIO::flush;
2651	Coro::cede;
2652	last unless IO::AIO::nreqs || BDB::nreqs;	3765	while (IO::AIO::nreqs || BDB::nreqs) {
2653	warn "iterate...";	3766	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2654	}
2655
2656	++$RELOAD;
2657
2658	warn "cancelling all extension coros";
2659	$_->cancel for values %EXT_CORO;
2660	%EXT_CORO = ();
2661
2662	warn "removing commands";
2663	%COMMAND = ();
2664
2665	warn "removing ext commands";
2666	%EXTCMD = ();
2667
2668	warn "unloading/nuking all extensions";
2669	for my $pkg (@EXTS) {
2670	warn "... unloading $pkg";
2671
2672	if (my $cb = $pkg->can ("unload")) {
2673	eval {
2674	$cb->($pkg);
2675	1
2676	} or warn "$pkg unloaded, but with errors: $@";
2677	}	3767	}
2678		3768
2679	warn "... nuking $pkg";	3769	warn "cancelling all extension coros";
2680	Symbol::delete_package $pkg;	3770	$_->cancel for values %EXT_CORO;
2681	}	3771	%EXT_CORO = ();
2682		3772
2683	warn "unloading all perl modules loaded from $LIBDIR";	3773	warn "removing commands";
2684	while (my ($k, $v) = each %INC) {	3774	%COMMAND = ();
2685	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2686		3775
		3776	warn "removing ext/exti commands";
		3777	%EXTCMD = ();
		3778	%EXTICMD = ();
		3779
		3780	warn "unloading/nuking all extensions";
		3781	for my $pkg (@EXTS) {
2687	warn "... unloading $k";	3782	warn "... unloading $pkg";
2688	delete $INC{$k};
2689		3783
2690	$k =~ s/\.pm$//;
2691	$k =~ s/\//::/g;
2692
2693	if (my $cb = $k->can ("unload_module")) {	3784	if (my $cb = $pkg->can ("unload")) {
		3785	eval {
2694	$cb->();	3786	$cb->($pkg);
		3787	1
		3788	} or warn "$pkg unloaded, but with errors: $@";
		3789	}
		3790
		3791	warn "... clearing $pkg";
		3792	clear_package $pkg;
2695	}	3793	}
2696		3794
2697	Symbol::delete_package $k;	3795	warn "unloading all perl modules loaded from $LIBDIR";
		3796	while (my ($k, $v) = each %INC) {
		3797	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3798
		3799	warn "... unloading $k";
		3800	delete $INC{$k};
		3801
		3802	$k =~ s/\.pm$//;
		3803	$k =~ s/\//::/g;
		3804
		3805	if (my $cb = $k->can ("unload_module")) {
		3806	$cb->();
		3807	}
		3808
		3809	clear_package $k;
2698	}	3810	}
2699		3811
2700	warn "getting rid of safe::, as good as possible";	3812	warn "getting rid of safe::, as good as possible";
2701	Symbol::delete_package "safe::$_"	3813	clear_package "safe::$_"
2702	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3814	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2703		3815
2704	warn "unloading cf.pm \"a bit\"";	3816	warn "unloading cf.pm \"a bit\"";
2705	delete $INC{"cf.pm"};	3817	delete $INC{"cf.pm"};
2706	delete $INC{"cf/pod.pm"};	3818	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2707		3819
2708	# don't, removes xs symbols, too,	3820	# don't, removes xs symbols, too,
2709	# and global variables created in xs	3821	# and global variables created in xs
2710	#Symbol::delete_package __PACKAGE__;	3822	#clear_package __PACKAGE__;
2711		3823
2712	warn "unload completed, starting to reload now";	3824	warn "unload completed, starting to reload now";
2713		3825
2714	warn "reloading cf.pm";	3826	warn "reloading cf.pm";
2715	require cf;	3827	require cf;
2716	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3828	cf::_connect_to_perl_1;
2717		3829
2718	warn "loading config and database again";	3830	warn "loading config and database again";
2719	cf::cfg_load;	3831	cf::reload_config;
2720		3832
2721	warn "loading extensions";	3833	warn "loading extensions";
2722	cf::load_extensions;	3834	cf::load_extensions;
2723		3835
		3836	if ($REATTACH_ON_RELOAD) {
2724	warn "reattaching attachments to objects/players";	3837	warn "reattaching attachments to objects/players";
2725	_global_reattach; # objects, sockets	3838	_global_reattach; # objects, sockets
2726	warn "reattaching attachments to maps";	3839	warn "reattaching attachments to maps";
2727	reattach $_ for values %MAP;	3840	reattach $_ for values %MAP;
2728	warn "reattaching attachments to players";	3841	warn "reattaching attachments to players";
2729	reattach $_ for values %PLAYER;	3842	reattach $_ for values %PLAYER;
		3843	}
2730		3844
		3845	warn "running post_init jobs";
		3846	(pop @POST_INIT)->(1) while @POST_INIT;
		3847
2731	warn "leaving sync_job";	3848	warn "leaving sync_job";
2732		3849
2733	1	3850	1
2734	} or do {	3851	} or do {
2735	warn $@;	3852	warn $@;
2736	warn "error while reloading, exiting.";	3853	cf::cleanup "error while reloading, exiting.";
2737	exit 1;
2738	};	3854	};
2739		3855
2740	warn "reloaded";	3856	warn "reloaded";
		3857	--$RELOAD;
		3858	}
		3859
		3860	$t1 = EV::time - $t1;
		3861	warn "reload completed in ${t1}s\n";
2741	};	3862	};
2742		3863
2743	our $RELOAD_WATCHER; # used only during reload	3864	our $RELOAD_WATCHER; # used only during reload
2744		3865
2745	sub reload_perl() {	3866	sub reload_perl() {
2746	# doing reload synchronously and two reloads happen back-to-back,	3867	# doing reload synchronously and two reloads happen back-to-back,
2747	# coro crashes during coro_state_free->destroy here.	3868	# coro crashes during coro_state_free->destroy here.
2748		3869
2749	$RELOAD_WATCHER ||= Event->timer (	3870	$RELOAD_WATCHER ||= cf::async {
2750	reentrant => 0,	3871	Coro::AIO::aio_wait cache_extensions;
2751	after => 0,	3872
2752	data => WF_AUTOCANCEL,	3873	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2753	cb => sub {
2754	do_reload_perl;	3874	do_reload_perl;
2755	undef $RELOAD_WATCHER;	3875	undef $RELOAD_WATCHER;
2756	},	3876	};
2757	);	3877	};
2758	}	3878	}
2759		3879
2760	register_command "reload" => sub {	3880	register_command "reload" => sub {
2761	my ($who, $arg) = @_;	3881	my ($who, $arg) = @_;
2762		3882
2763	if ($who->flag (FLAG_WIZ)) {	3883	if ($who->flag (FLAG_WIZ)) {
2764	$who->message ("reloading server.");	3884	$who->message ("reloading server.");
		3885	async {
		3886	$Coro::current->{desc} = "perl_reload";
2765	async { reload_perl };	3887	reload_perl;
		3888	};
2766	}	3889	}
2767	};	3890	};
2768		3891
2769	unshift @INC, $LIBDIR;	3892	unshift @INC, $LIBDIR;
2770		3893
…		…
2772		3895
2773	our @WAIT_FOR_TICK;	3896	our @WAIT_FOR_TICK;
2774	our @WAIT_FOR_TICK_BEGIN;	3897	our @WAIT_FOR_TICK_BEGIN;
2775		3898
2776	sub wait_for_tick {	3899	sub wait_for_tick {
2777	return unless $TICK_WATCHER->is_active;
2778	return if $Coro::current == $Coro::main;	3900	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2779		3901
2780	my $signal = new Coro::Signal;	3902	my $signal = new Coro::Signal;
2781	push @WAIT_FOR_TICK, $signal;	3903	push @WAIT_FOR_TICK, $signal;
2782	$signal->wait;	3904	$signal->wait;
2783	}	3905	}
2784		3906
2785	sub wait_for_tick_begin {	3907	sub wait_for_tick_begin {
2786	return unless $TICK_WATCHER->is_active;
2787	return if $Coro::current == $Coro::main;	3908	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2788		3909
2789	my $signal = new Coro::Signal;	3910	my $signal = new Coro::Signal;
2790	push @WAIT_FOR_TICK_BEGIN, $signal;	3911	push @WAIT_FOR_TICK_BEGIN, $signal;
2791	$signal->wait;	3912	$signal->wait;
2792	}	3913	}
2793		3914
2794	$TICK_WATCHER = Event->timer (	3915	sub tick {
2795	reentrant => 0,
2796	parked => 1,
2797	prio => 0,
2798	at => $NEXT_TICK || $TICK,
2799	data => WF_AUTOCANCEL,
2800	cb => sub {
2801	if ($Coro::current != $Coro::main) {	3916	if ($Coro::current != $Coro::main) {
2802	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3917	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2803	unless ++$bug_warning > 10;	3918	unless ++$bug_warning > 10;
2804	return;	3919	return;
2805	}	3920	}
2806		3921
2807	$NOW = Event::time;
2808
2809	cf::server_tick; # one server iteration	3922	cf::server_tick; # one server iteration
2810		3923
2811	$RUNTIME += $TICK;	3924	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
2812	$NEXT_TICK += $TICK;
2813		3925
2814	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3926	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2815	$NEXT_RUNTIME_WRITE = $NOW + 10;	3927	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2816	Coro::async_pool {	3928	Coro::async_pool {
		3929	$Coro::current->{desc} = "runtime saver";
2817	write_runtime	3930	write_runtime_sync
2818	or warn "ERROR: unable to write runtime file: $!";	3931	or warn "ERROR: unable to write runtime file: $!";
2819	};
2820	}	3932	};
		3933	}
2821		3934
2822	# my $AFTER = Event::time;
2823	# warn $AFTER - $NOW;#d#
2824
2825	# if we are delayed by four ticks or more, skip them all
2826	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2827
2828	$TICK_WATCHER->at ($NEXT_TICK);
2829	$TICK_WATCHER->start;
2830
2831	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3935	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2832	$sig->send;	3936	$sig->send;
2833	}	3937	}
2834	while (my $sig = shift @WAIT_FOR_TICK) {	3938	while (my $sig = shift @WAIT_FOR_TICK) {
2835	$sig->send;	3939	$sig->send;
2836	}
2837
2838	_post_tick;
2839	},	3940	}
2840	);	3941
		3942	$LOAD = ($NOW - $TICK_START) / $TICK;
		3943	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3944
		3945	if (0) {
		3946	if ($NEXT_TICK) {
		3947	my $jitter = $TICK_START - $NEXT_TICK;
		3948	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3949	warn "jitter $JITTER\n";#d#
		3950	}
		3951	}
		3952	}
2841		3953
2842	{	3954	{
2843	BDB::max_poll_time $TICK * 0.1;	3955	# configure BDB
2844	$BDB_POLL_WATCHER = Event->io (	3956
2845	reentrant => 0,
2846	fd => BDB::poll_fileno,
2847	poll => 'r',
2848	prio => 0,
2849	data => WF_AUTOCANCEL,
2850	cb => \&BDB::poll_cb,
2851	);
2852	BDB::min_parallel 8;	3957	BDB::min_parallel 16;
2853		3958	BDB::max_poll_reqs $TICK * 0.1;
2854	BDB::set_sync_prepare {	3959	$AnyEvent::BDB::WATCHER->priority (1);
2855	my $status;
2856	my $current = $Coro::current;
2857	(
2858	sub {
2859	$status = $!;
2860	$current->ready; undef $current;
2861	},
2862	sub {
2863	Coro::schedule while defined $current;
2864	$! = $status;
2865	},
2866	)
2867	};
2868		3960
2869	unless ($DB_ENV) {	3961	unless ($DB_ENV) {
2870	$DB_ENV = BDB::db_env_create;	3962	$DB_ENV = BDB::db_env_create;
		3963	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3964	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3965	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3966	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3967	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2871		3968
2872	cf::sync_job {	3969	cf::sync_job {
2873	eval {	3970	eval {
2874	BDB::db_env_open	3971	BDB::db_env_open
2875	$DB_ENV,	3972	$DB_ENV,
2876	$BDB_ENV_DIR,	3973	$BDBDIR,
2877	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3974	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2878	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3975	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2879	0666;	3976	0666;
2880		3977
2881	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3978	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2882
2883	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2884	$DB_ENV->set_lk_detect;
2885	};	3979	};
2886		3980
2887	cf::cleanup "db_env_open(db): $@" if $@;	3981	cf::cleanup "db_env_open(db): $@" if $@;
2888	};	3982	};
2889	}	3983	}
		3984
		3985	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3986	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3987	};
		3988	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3989	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3990	};
		3991	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3992	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3993	};
2890	}	3994	}
2891		3995
2892	{	3996	{
		3997	# configure IO::AIO
		3998
2893	IO::AIO::min_parallel 8;	3999	IO::AIO::min_parallel 8;
2894
2895	undef $Coro::AIO::WATCHER;
2896	IO::AIO::max_poll_time $TICK * 0.1;	4000	IO::AIO::max_poll_time $TICK * 0.1;
2897	$AIO_POLL_WATCHER = Event->io (	4001	undef $AnyEvent::AIO::WATCHER;
2898	reentrant => 0,	4002	}
2899	data => WF_AUTOCANCEL,	4003
2900	fd => IO::AIO::poll_fileno,	4004	my $_log_backtrace;
2901	poll => 'r',	4005
2902	prio => 6,	4006	sub _log_backtrace {
2903	cb => \&IO::AIO::poll_cb,	4007	my ($msg, @addr) = @_;
2904	);	4008
		4009	$msg =~ s/\n//;
		4010
		4011	# limit the # of concurrent backtraces
		4012	if ($_log_backtrace < 2) {
		4013	++$_log_backtrace;
		4014	my $perl_bt = Carp::longmess $msg;
		4015	async {
		4016	$Coro::current->{desc} = "abt $msg";
		4017
		4018	my @bt = fork_call {
		4019	@addr = map { sprintf "%x", $_ } @addr;
		4020	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4021	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4022	or die "addr2line: $!";
		4023
		4024	my @funcs;
		4025	my @res = <$fh>;
		4026	chomp for @res;
		4027	while (@res) {
		4028	my ($func, $line) = splice @res, 0, 2, ();
		4029	push @funcs, "[$func] $line";
		4030	}
		4031
		4032	@funcs
		4033	};
		4034
		4035	LOG llevInfo, "[ABT] $perl_bt\n";
		4036	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4037	LOG llevInfo, "[ABT] $_\n" for @bt;
		4038	--$_log_backtrace;
		4039	};
		4040	} else {
		4041	LOG llevInfo, "[ABT] $msg\n";
		4042	LOG llevInfo, "[ABT] [suppressed]\n";
		4043	}
2905	}	4044	}
2906		4045
2907	# load additional modules	4046	# load additional modules
2908	use cf::pod;	4047	require "cf/$_.pm" for @EXTRA_MODULES;
		4048	cf::_connect_to_perl_2;
2909		4049
2910	END { cf::emergency_save }	4050	END { cf::emergency_save }
2911		4051
2912	1	4052	1
2913		4053

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