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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.219 by root, Sat Feb 17 03:19:44 2007 UTC vs.
Revision 1.484 by root, Mon Oct 12 14:00:58 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
12		37
		38	use Guard ();
13	use Coro 3.5 ();	39	use Coro ();
		40	use Coro::State;
		41	use Coro::Handle;
		42	use Coro::EV;
14	use Coro::Event;	43	use Coro::AnyEvent;
15	use Coro::Timer;	44	use Coro::Timer;
16	use Coro::Signal;	45	use Coro::Signal;
17	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
18	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
		51	use Coro::Storable;
		52	use Coro::Util ();
19		53
		54	use JSON::XS 2.01 ();
20	use BDB ();	55	use BDB ();
21	use Data::Dumper;	56	use Data::Dumper;
22	use Digest::MD5;	57	use Digest::MD5;
23	use Fcntl;	58	use Fcntl;
24	use IO::AIO 2.32 ();
25	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
26	use Time::HiRes;	61	use Time::HiRes;
27	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
28		64
		65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		77
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		82
40	our %COMMAND = ();	83	our %COMMAND = ();
41	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
42		85
43	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
47		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
48	our @EVENT;	93	our @EVENT;
49	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
50		96
51	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	98	our $DATADIR = datadir;
53	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	115	our $NEXT_TICK;
56	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
58		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
59	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
60	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
61		124
62	our %CFG;	125	our %CFG;
63		126
64	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
66		130
67	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
68	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		134
76	# 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 ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		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 $REALLY_UNLOOP; # never set to true, please :)
		147
79	binmode STDOUT;	148	binmode STDOUT;
80	binmode STDERR;	149	binmode STDERR;
81		150
82	# read virtual server time, if available	151	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
84	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
85	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
86	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
87	}	156	}
88		157
89	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
90	mkdir cf::localdir . "/" . cf::playerdir;	159
91	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
92	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		162
96	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
97		164
98	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::"} };
99		177
100	#############################################################################	178	#############################################################################
101		179
102	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
103		181
…		…
110	=item $cf::RUNTIME	188	=item $cf::RUNTIME
111		189
112	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
113	every server tick.	191	every server tick.
114		192
115	=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
116		196
117	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
118	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.
119		201
120	=item $cf::NOW	202	=item $cf::NOW
121		203
122	The time of the last (current) server tick.	204	The time of the last (current) server tick.
123		205
124	=item $cf::TICK	206	=item $cf::TICK
125		207
126	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
127		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
128	=item %cf::CFG	220	=item %cf::CFG
129		221
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	223	from wherever your confdir points to.
132		224
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		226
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	228	returns directly I<after> the tick processing (and consequently, can only wake one process
137	processing has been done. Call C<< ->wait >> on them to maximise the	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138	window of cpu time available, or simply to synchronise to the server tick.	230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
139		242
140	=back	243	=back
141		244
142	=cut	245	=cut
143		246
144	BEGIN {	247	$Coro::State::WARNHOOK = sub {
145	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	248	my $msg = join "", @_;
147	utf8::encode $msg;
148		249
149	$msg .= "\n"	250	$msg .= "\n"
150	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
151		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
152	LOG llevError, $msg;	255	LOG llevError, $msg;
153	};	256	};
154	}	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	};
155		271
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@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';
161	@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)
162		279
163	# 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
164	# within the Safe compartment.	281	# within the Safe compartment.
165	for my $pkg (qw(	282	for my $pkg (qw(
166	cf::global cf::attachable	283	cf::global cf::attachable
167	cf::object cf::object::player	284	cf::object cf::object::player
168	cf::client cf::player	285	cf::client cf::player
169	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
170	cf::map cf::party cf::region	288	cf::party cf::region
171	)) {	289	)) {
172	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	291	}
175		292
176	$Event::DIED = sub {	293	$EV::DIED = sub {
177	warn "error in event callback: @_";	294	warn "error in event callback: @_";
178	};	295	};
		296
		297	#############################################################################
179		298
180	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
181		300
182	=over 4	301	=over 4
183		302
…		…
202	$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;
203	$d	322	$d
204	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
205	}	324	}
206		325
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
210		327
211	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
212		329
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
221		331
222	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
223		333
224	=cut	334	=cut
225		335
226	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	337
228	JSON::Syck::Dump $_[0]	338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
229	}	353	}
230		354
231	=item cf::lock_wait $string	355	=item cf::lock_wait $string
232		356
233	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
234		358
235	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
236		360
237	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
238	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,
239	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
240	returned.	364	returned.
241		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
242	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
243	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
244		371
245	=cut	372	=item $locked = cf::lock_active $string
246		373
247	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
248		379
249	sub lock_wait($) {	380	sub lock_wait($) {
250	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
251
252	# wait for lock, if any
253	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;
256	}
257	}	382	}
258		383
259	sub lock_acquire($) {	384	sub lock_acquire($) {
260	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
261		387
262	# wait, to be sure we are not locked	388	sub lock_active($) {
263	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
264
265	$LOCK{$key} = [];
266
267	Coro::guard {
268	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };
270	}
271	}	390	}
272		391
273	sub freeze_mainloop {	392	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
275		394
276	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
277	$TICK_WATCHER->start;	396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
278	};	456	}
279	$TICK_WATCHER->stop;	457	};
280	$guard	458
		459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
281	}	471	}
282		472
283	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
284		474
285	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
290		480
291	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
292		482
293	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
294		484
295	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
298		489
299	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
302	fast or be very important.	493	fast or be very important.
…		…
305		496
306	sub sync_job(&) {	497	sub sync_job(&) {
307	my ($job) = @_;	498	my ($job) = @_;
308		499
309	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
310	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
312		505
313	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
314	# (but this is cancel-safe)	507
315	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
316		509
317	my $busy = 1;	510	my $busy = 1;
318	my @res;	511	my @res;
319		512
320	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
321	@res = eval { $job->() };	515	@res = eval { $job->() };
322	warn $@ if $@;	516	warn $@ if $@;
323	undef $busy;	517	undef $busy;
324	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
325		519
326	while ($busy) {	520	while ($busy) {
327	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
328	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
329		531
330	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
331	} else {	533	} else {
332	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
333		535
…		…
353	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
354		556
355	$coro	557	$coro
356	}	558	}
357		559
358	sub write_runtime {	560	=item fork_call { }, $args
359	my $guard = cf::lock_acquire "write_runtime";
360		561
361	my $runtime = cf::localdir . "/runtime";	562	Executes the given code block with the given arguments in a seperate
		563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
362		566
363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	567	=cut
364	or return;
365		568
366	my $value = $cf::RUNTIME + 90 + 10;	569	sub fork_call(&@) {
367	# 10 is the runtime save interval, for a monotonic clock	570	my ($cb, @args) = @_;
368	# 60 allows for the watchdog to kill the server.
369		571
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0	572	# we seemingly have to make a local copy of the whole thing,
371	and return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
372		575
373	# always fsync - this file is important	576	my @res = Coro::Util::fork_eval {
374	aio_fsync $fh	577	reset_signals;
375	and return;	578	&$cb
		579	}, @args;
376		580
377	close $fh	581	wantarray ? @res : $res[-1]
378	or return;	582	}
379		583
380	aio_rename "$runtime~", $runtime	584	=item $coin = coin_from_name $name
381	and return;
382		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
383	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
		736	}
		737
		738	=item cf::datalog type => key => value, ...
		739
		740	Log a datalog packet of the given type with the given key-value pairs.
		741
		742	=cut
		743
		744	sub datalog($@) {
		745	my ($type, %kv) = @_;
		746	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384	}	747	}
385		748
386	=back	749	=back
387		750
388	=cut	751	=cut
389		752
390	#############################################################################	753	#############################################################################
391		754
392	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
393		756
394	Many objects in crossfire are so-called attachable objects. That means you can	757	Many objects in deliantra are so-called attachable objects. That means you can
395	attach callbacks/event handlers (a collection of which is called an "attachment")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
396	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
397		760
398	In the following description, CLASS can be any of C<global>, C<object>	761	In the following description, CLASS can be any of C<global>, C<object>
399	C<player>, C<client> or C<map> (i.e. the attachable objects in	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
400	crossfire+).	763	Deliantra).
401		764
402	=over 4	765	=over 4
403		766
404	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
405		768
…		…
449	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
450		813
451	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
452	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
453		816
454	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
455	that are attached at load/instantiate time, thus the need for a name.	818	that are attached at load/instantiate time, thus the need for a name.
456		819
457	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
458		821
459	=over 4	822	=over 4
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
569		932
570	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		937
575	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	939	my $pkg = shift @arg;
577		940
578	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
607	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
608	}	971	}
609		972
610	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
611	} else {	974	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
613	}	976	}
614		977
615	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
616	}	979	}
617		980
…		…
619	if (ref $_[0]) {	982	if (ref $_[0]) {
620	_object_attach @_;	983	_object_attach @_;
621	} else {	984	} else {
622	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
623	}	986	}
		987	_recalc_want;
624	};	988	};
625		989
626	# all those should be optimised	990	# all those should be optimised
627	sub cf::attachable::detach {	991	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
632	reattach ($obj);	996	reattach ($obj);
633	} else {	997	} else {
634	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
635	}	999	}
		1000	_recalc_want;
636	};	1001	};
637		1002
638	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
640		1005
…		…
655	";	1020	";
656	die if $@;	1021	die if $@;
657	}	1022	}
658		1023
659	our $override;	1024	our $override;
660	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
661		1026
662	sub override {	1027	sub override {
663	$override = 1;	1028	$override = 1;
664	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
665	}	1030	}
666		1031
667	sub do_invoke {	1032	sub do_invoke {
668	my $event = shift;	1033	my $event = shift;
669	my $callbacks = shift;	1034	my $callbacks = shift;
670		1035
671	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
672		1037
673	local $override;	1038	local $override;
674		1039
675	for (@$callbacks) {	1040	for (@$callbacks) {
676	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
685	}	1050	}
686		1051
687	0	1052	0
688	}	1053	}
689		1054
690	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
691		1056
692	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
693		1058
694	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
695		1060
696	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
697	removed in future versions), and there is no public API to access override	1062	removed in future versions), and there is no public API to access override
698	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
699		1064
700	=back	1065	=back
701		1066
702	=cut	1067	=cut
703		1068
704	#############################################################################	1069	#############################################################################
705	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
706		1113
707	sub reattach {	1114	sub reattach {
708	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
709	my ($obj) = @_;	1116	my ($obj) = @_;
710		1117
		1118	# no longer needed after getting rid of delete_package?
711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
712		1120
713	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
714		1122
715	@$registry = ();	1123	@$registry = ();
716		1124
…		…
731	cf::attachable->attach (	1139	cf::attachable->attach (
732	prio => -1000000,	1140	prio => -1000000,
733	on_instantiate => sub {	1141	on_instantiate => sub {
734	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
735		1143
736	$data = from_json $data;	1144	$data = decode_json $data;
737		1145
738	for (@$data) {	1146	for (@$data) {
739	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
740		1148
741	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
757	sub object_freezer_save {	1165	sub object_freezer_save {
758	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
759		1167
760	sync_job {	1168	sync_job {
761	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
762	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
763	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
764		1173
765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
766	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
768	aio_fsync $fh if $cf::USE_FSYNC;	1177	if ($cf::USE_FSYNC) {
		1178	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1179	aio_fsync $fh;
		1180	}
769	close $fh;	1181	aio_close $fh;
770		1182
771	if (@$objs) {	1183	if (@$objs) {
772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
773	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
774	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
775	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
776	aio_fsync $fh if $cf::USE_FSYNC;	1188	if ($cf::USE_FSYNC) {
		1189	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1190	aio_fsync $fh;
		1191	}
777	close $fh;	1192	aio_close $fh;
778	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
779	}	1194	}
780	} else {	1195	} else {
781	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
782	}	1197	}
783		1198
784	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
785	} else {	1203	} else {
786	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
787	}	1205	}
788	} else {	1206	} else {
789	aio_unlink $filename;	1207	aio_unlink $filename;
790	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
791	}	1209	}
792	}	1210	};
793	}	1211	}
794		1212
795	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
796	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
797		1215
…		…
809	or return;	1227	or return;
810		1228
811	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
812	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
813	or return;	1231	or return;
		1232
814	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
815	}	1235	}
816		1236
		1237	utf8::decode (my $decname = $filename);
817	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
819	return ($data, $av);	1241	($data, $av)
820	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
821		1249
822	#############################################################################	1250	#############################################################################
823	# command handling &c	1251	# command handling &c
824		1252
825	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1267	}
840		1268
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1270
843	Register a callbackf ro execution when the client sends an extcmd packet.	1271	Register a callback for execution when the client sends an (synchronous)
		1272	extcmd packet. Ext commands will be processed in the order they are
		1273	received by the server, like other user commands. The first argument is
		1274	the logged-in player. Ext commands can only be processed after a player
		1275	has logged in successfully.
844		1276
845	If the callback returns something, it is sent back as if reply was being	1277	If the callback returns something, it is sent back as if reply was being
846	called.	1278	called.
847		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
848	=cut	1291	=cut
849		1292
850	sub register_extcmd {	1293	sub register_extcmd {
851	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
852		1295
853	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
854	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
855		1306
856	cf::player->attach (	1307	cf::player->attach (
857	on_command => sub {	1308	on_command => sub {
858	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
859		1310
…		…
867	cf::override;	1318	cf::override;
868	},	1319	},
869	on_extcmd => sub {	1320	on_extcmd => sub {
870	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
871		1322
872	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
873		1324
874	if (ref $msg) {	1325	if (ref $msg) {
		1326	my ($type, $reply, @payload) =
		1327	"ARRAY" eq ref $msg
		1328	? @$msg
		1329	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1330
		1331	my @reply;
		1332
875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
876	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
877	$pl->ext_reply ($msg->{msgid}, %reply);
878	}
879	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
880	} else {	1340	} else {
881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
882	}	1342	}
883		1343
884	cf::override;	1344	cf::override;
885	},	1345	},
886	);	1346	);
887		1347
		1348	# "readahead" all extensions
888	sub load_extension {	1349	sub cache_extensions {
889	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
890		1351
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
892	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
893	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}	1355	}
916	die $@;
917	}	1356	};
918		1357
919	push @EXTS, $pkg;	1358	$grp
920	}	1359	}
921		1360
922	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
923	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1366	next unless -r $path;
925	eval {	1367
926	load_extension $ext;	1368	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1369	my $base = $1;
		1370	my $pkg = $1;
		1371	$pkg =~ s/[^[:word:]]/_/g;
		1372	$pkg = "ext::$pkg";
		1373
		1374	open my $fh, "<:utf8", $path
		1375	or die "$path: $!";
		1376
		1377	my $source = do { local $/; <$fh> };
		1378
		1379	my %ext = (
		1380	path => $path,
		1381	base => $base,
		1382	pkg => $pkg,
		1383	);
		1384
		1385	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1386	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1387
		1388	$ext{source} =
		1389	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1390	. "#line 1 \"$path\"\n{\n"
		1391	. $source
		1392	. "\n};\n1";
		1393
		1394	$todo{$base} = \%ext;
		1395	}
		1396
		1397	my %done;
		1398	while (%todo) {
		1399	my $progress;
		1400
		1401	while (my ($k, $v) = each %todo) {
		1402	for (split /,\s*/, $v->{meta}{depends}) {
		1403	goto skip
		1404	unless exists $done{$_};
		1405	}
		1406
		1407	warn "... loading '$k' into '$v->{pkg}'\n";
		1408
		1409	unless (eval $v->{source}) {
		1410	my $msg = $@ ? "$v->{path}: $@\n"
		1411	: "$v->{base}: extension inactive.\n";
		1412
		1413	if (exists $v->{meta}{mandatory}) {
		1414	warn $msg;
		1415	cf::cleanup "mandatory extension failed to load, exiting.";
		1416	}
		1417
		1418	warn $msg;
		1419	}
		1420
		1421	$done{$k} = delete $todo{$k};
		1422	push @EXTS, $v->{pkg};
		1423	$progress = 1;
927	1	1424	}
928	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
929	}	1430	};
930	}	1431	}
931		1432
932	#############################################################################	1433	#############################################################################
933		1434
		1435	=back
		1436
934	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
935		1438
936	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
937		1440
938	=cut	1441	=cut
939		1442
940	package cf::player;	1443	package cf::player;
941		1444
…		…
943		1446
944	=head3 cf::player	1447	=head3 cf::player
945		1448
946	=over 4	1449	=over 4
947		1450
		1451	=item cf::player::num_playing
		1452
		1453	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1454
		1455	=cut
		1456
		1457	sub num_playing {
		1458	scalar grep
		1459	$_->ob->map
		1460	&& !$_->hidden
		1461	&& !$_->ob->flag (cf::FLAG_WIZ),
		1462	cf::player::list
		1463	}
		1464
948	=item cf::player::find $login	1465	=item cf::player::find $login
949		1466
950	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
951		1468
952	=cut	1469	=cut
953		1470
954	sub playerdir($) {	1471	sub playerdir($) {
955	cf::localdir	1472	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1473	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1474	}
961		1475
962	sub path($) {	1476	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1477	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1478
965	(playerdir $login) . "/$login.pl"	1479	(playerdir $login) . "/playerdata"
966	}	1480	}
967		1481
968	sub find_active($) {	1482	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1483	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1484	and $cf::PLAYER{$_[0]}->active
…		…
973		1487
974	sub exists($) {	1488	sub exists($) {
975	my ($login) = @_;	1489	my ($login) = @_;
976		1490
977	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
978	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
979	}	1493	}
980		1494
981	sub find($) {	1495	sub find($) {
982	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
983	my $login = $_[0];	1497	my $login = $_[0];
984		1498
985	my $guard = cf::lock_acquire "user_find:$login";	1499	my $guard = cf::lock_acquire "user_find:$login";
986		1500
987	$cf::PLAYER{$_[0]} || do {	1501	$cf::PLAYER{$_[0]} || do {
988	my $pl = load_pl path $login	1502	# rename old playerfiles to new ones
		1503	#TODO: remove when no longer required
		1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1507	aio_unlink +(playerdir $login) . "/$login.pl";
		1508
		1509	my $f = new_from_file cf::object::thawer path $login
989	or return;	1510	or return;
		1511
		1512	my $pl = cf::player::load_pl $f
		1513	or return;
		1514
		1515	local $cf::PLAYER_LOADING{$login} = $pl;
		1516	$f->resolve_delayed_derefs;
990	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
991	}	1518	}
992	}	1519	}
993	}	1520	}
994		1521
…		…
1003	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1004		1531
1005	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1006	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1007		1534
		1535	cf::get_slot 0.01;
		1536
1008	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1009	Coro::cede;	1538	cf::cede_to_tick;
1010	}	1539	}
1011		1540
1012	sub new($) {	1541	sub new($) {
1013	my ($login) = @_;	1542	my ($login) = @_;
1014		1543
…		…
1020	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1021		1550
1022	$self	1551	$self
1023	}	1552	}
1024		1553
		1554	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1555
		1556	=cut
		1557
		1558	sub send_msg {
		1559	my $ns = shift->ns
		1560	or return;
		1561	$ns->send_msg (@_);
		1562	}
		1563
1025	=item $pl->quit_character	1564	=item $pl->quit_character
1026		1565
1027	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1028	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1029		1568
1030	=cut	1569	=cut
1031		1570
1032	sub quit_character {	1571	sub quit_character {
1033	my ($pl) = @_;	1572	my ($pl) = @_;
1034		1573
		1574	my $name = $pl->ob->name;
		1575
1035	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1036	$pl->password ("*"); # this should lock out the player until we nuked the dir	1577	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1037		1578
1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1039	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1040	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1041	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1042		1585
1043	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1044	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
1045	aio_rename $path, $temp;	1588	aio_rename $path, $temp;
1046	delete $cf::PLAYER{$pl->ob->name};	1589	delete $cf::PLAYER{$pl->ob->name};
1047	$pl->destroy;	1590	$pl->destroy;
		1591
		1592	my $prefix = qr<^~\Q$name\E/>;
		1593
		1594	# nuke player maps
		1595	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1596
1048	IO::AIO::aio_rmtree $temp;	1597	IO::AIO::aio_rmtree $temp;
		1598	}
		1599
		1600	=item $pl->kick
		1601
		1602	Kicks a player out of the game. This destroys the connection.
		1603
		1604	=cut
		1605
		1606	sub kick {
		1607	my ($pl, $kicker) = @_;
		1608
		1609	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1610	$pl->killer ("kicked");
		1611	$pl->ns->destroy;
1049	}	1612	}
1050		1613
1051	=item cf::player::list_logins	1614	=item cf::player::list_logins
1052		1615
1053	Returns am arrayref of all valid playernames in the system, can take a	1616	Returns am arrayref of all valid playernames in the system, can take a
1054	while and may block, so not sync_job-capable, ever.	1617	while and may block, so not sync_job-capable, ever.
1055		1618
1056	=cut	1619	=cut
1057		1620
1058	sub list_logins {	1621	sub list_logins {
1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1622	my $dirs = aio_readdir $PLAYERDIR
1060	or return [];	1623	or return [];
1061		1624
1062	my @logins;	1625	my @logins;
1063		1626
1064	for my $login (@$dirs) {	1627	for my $login (@$dirs) {
		1628	my $path = path $login;
		1629
		1630	# a .pst is a dead give-away for a valid player
		1631	# if no pst file found, open and chekc for blocked users
		1632	if (aio_stat "$path.pst") {
1065	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1066	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1067	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1068		1637
1069	utf8::decode $login;	1638	utf8::decode $login;
1070	push @logins, $login;	1639	push @logins, $login;
1071	}	1640	}
1072		1641
…		…
1099	}	1668	}
1100		1669
1101	\@paths	1670	\@paths
1102	}	1671	}
1103		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1104	=item $player->ext_reply ($msgid, $msgtype, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1105		1678
1106	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1107		1680
1108	=cut	1681	=cut
1109		1682
1110	sub ext_reply($$$%) {	1683	sub ext_reply($$@) {
1111	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1112		1685
1113	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1114
1115	$self->send ("ext " . cf::to_json \%msg);
1116	}	1687	}
1117		1688
1118	package cf;	1689	=item $player->ext_msg ($type, @msg)
		1690
		1691	Sends an ext event to the client.
		1692
		1693	=cut
		1694
		1695	sub ext_msg($$@) {
		1696	my ($self, $type, @msg) = @_;
		1697
		1698	$self->ns->ext_msg ($type, @msg);
		1699	}
		1700
		1701	=head3 cf::region
		1702
		1703	=over 4
		1704
		1705	=cut
		1706
		1707	package cf::region;
		1708
		1709	=item cf::region::find_by_path $path
		1710
		1711	Tries to decuce the likely region for a map knowing only its path.
		1712
		1713	=cut
		1714
		1715	sub find_by_path($) {
		1716	my ($path) = @_;
		1717
		1718	my ($match, $specificity);
		1719
		1720	for my $region (list) {
		1721	if ($region->{match} && $path =~ $region->{match}) {
		1722	($match, $specificity) = ($region, $region->specificity)
		1723	if $region->specificity > $specificity;
		1724	}
		1725	}
		1726
		1727	$match
		1728	}
1119		1729
1120	=back	1730	=back
1121
1122		1731
1123	=head3 cf::map	1732	=head3 cf::map
1124		1733
1125	=over 4	1734	=over 4
1126		1735
…		…
1138	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1139	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1140		1749
1141	sub generate_random_map {	1750	sub generate_random_map {
1142	my ($self, $rmp) = @_;	1751	my ($self, $rmp) = @_;
		1752
		1753	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1754
1143	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1144	$self->_create_random_map (	1756	$self->_create_random_map (
1145	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1146	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1147	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1181	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1182		1794
1183	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1184	local $self->{path};	1796	local $self->{path};
1185	local $self->{load_path};	1797	local $self->{load_path};
1186	local $self->{deny_save};
1187	local $self->{deny_reset};
1188		1798
1189	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1190	}	1800	}
1191		1801
1192	sub normalise {	1802	sub normalise {
…		…
1239	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1240	return $self;	1850	return $self;
1241	}	1851	}
1242	}	1852	}
1243		1853
1244	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1245	()	1855	()
1246	}	1856	}
1247		1857
1248	sub init {	1858	sub init {
1249	my ($self) = @_;	1859	my ($self) = @_;
…		…
1264		1874
1265	# the original (read-only) location	1875	# the original (read-only) location
1266	sub load_path {	1876	sub load_path {
1267	my ($self) = @_;	1877	my ($self) = @_;
1268		1878
1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1879	"$MAPDIR/$self->{path}.map"
1270	}	1880	}
1271		1881
1272	# the temporary/swap location	1882	# the temporary/swap location
1273	sub save_path {	1883	sub save_path {
1274	my ($self) = @_;	1884	my ($self) = @_;
1275		1885
1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1887	"$TMPDIR/$path.map"
1278	}	1888	}
1279		1889
1280	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1281	sub uniq_path {	1891	sub uniq_path {
1282	my ($self) = @_;	1892	my ($self) = @_;
1283		1893
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1895	"$UNIQUEDIR/$path"
1286	}	1896	}
1287		1897
1288	# and all this just because we cannot iterate over	1898	sub decay_objects {
1289	# all maps in C++...
1290	sub change_all_map_light {
1291	my ($change) = @_;	1899	my ($self) = @_;
1292		1900
1293	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1294	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1295	}	1904	}
1296		1905
1297	sub unlink_save {	1906	sub unlink_save {
1298	my ($self) = @_;	1907	my ($self) = @_;
1299		1908
…		…
1304		1913
1305	sub load_header_from($) {	1914	sub load_header_from($) {
1306	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1307		1916
1308	utf8::encode $path;	1917	utf8::encode $path;
1309	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1310	# or return;
1311
1312	$self->_load_header ($path)
1313	or return;	1919	or return;
		1920
		1921	$self->_load_header ($f)
		1922	or return;
		1923
		1924	local $MAP_LOADING{$self->{path}} = $self;
		1925	$f->resolve_delayed_derefs;
1314		1926
1315	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1316		1928
1317	1	1929	1
1318	}	1930	}
…		…
1357	$self->load_header_orig	1969	$self->load_header_orig
1358	or return;	1970	or return;
1359	$self->prepare_orig;	1971	$self->prepare_orig;
1360	}	1972	}
1361		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
		1977	$self->default_region (cf::region::find_by_path $self->{path})
		1978	unless $self->default_region;
		1979
1362	1	1980	1
1363	}	1981	}
1364		1982
1365	sub find;	1983	sub find;
1366	sub find {	1984	sub find {
1367	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1368		1986
1369	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1370		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1371	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1372		1991
1373	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1374	my $guard = cf::lock_acquire "map_find:$path";
1375	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1376	or return;	1994	or return;
1377		1995
1378	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1379		1997
1380	$map->load_header	1998	$map->load_header
1381	or return;	1999	or return;
1382		2000
1383	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1384	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1385	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1386	$map->reset;	2006	$map->reset;
1387	undef $guard;
1388	return find $path;	2007	return find $path;
1389	}	2008	}
1390		2009
1391	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1392	}	2011	}
…		…
1399	my ($self) = @_;	2018	my ($self) = @_;
1400		2019
1401	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1402		2021
1403	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1404	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1405		2026
		2027	return unless $self->valid;
1406	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1407		2029
1408	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1409		2031
1410	$self->alloc;	2032	$self->alloc;
1411		2033
1412	$self->pre_load;	2034	$self->pre_load;
		2035	cf::cede_to_tick;
1413		2036
1414	$self->_load_objects ($self->{load_path}, 1)	2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
		2039	$self->_load_objects ($f)
1415	or return;	2040	or return;
1416		2041
1417	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1418	if delete $self->{load_original};	2043	if delete $self->{load_original};
1419		2044
1420	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1421	utf8::encode $uniq;	2046	utf8::encode $uniq;
1422	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1423	$self->clear_unique_items;	2049	$self->clear_unique_items;
1424	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1425	}	2053	}
1426	}	2054	}
1427		2055
1428	Coro::cede;	2056	$f->resolve_delayed_derefs;
1429		2057
		2058	cf::cede_to_tick;
1430	# now do the right thing for maps	2059	# now do the right thing for maps
1431	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1432
1433	unless ($self->{deny_activate}) {
1434	$self->decay_objects;
1435	$self->fix_auto_apply;
1436	$self->update_buttons;
1437	Coro::cede;
1438	$self->set_darkness_map;
1439	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1440	unless $self->difficulty;	2062	unless $self->difficulty;
1441	Coro::cede;	2063	cf::cede_to_tick;
		2064
		2065	unless ($self->{deny_activate}) {
		2066	$self->decay_objects;
		2067	$self->fix_auto_apply;
		2068	$self->update_buttons;
		2069	cf::cede_to_tick;
1442	$self->activate;	2070	$self->activate;
		2071	}
		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
		2076	$self->in_memory (cf::MAP_ACTIVE);
1443	}	2077	}
1444		2078
1445	$self->post_load;	2079	$self->post_load;
1446
1447	$self->in_memory (cf::MAP_IN_MEMORY);
1448	}	2080	}
1449		2081
1450	sub customise_for {	2082	sub customise_for {
1451	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1452		2084
1453	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1454	if $self->per_player;	2086	if $self->per_player;
1455		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1456	$self	2091	$self
1457	}	2092	}
1458		2093
1459	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1460	sub load_diag {	2095	sub load_neighbours {
1461	my ($map) = @_;	2096	my ($map) = @_;
1462		2097
1463	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1464		2099
1465	for (0 .. 3) {	2100	for (0 .. 3) {
1466	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1467	or next;	2102	or next;
1468	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1469	or next;	2104	or next;
1470	$neigh->load;	2105	$neigh->load;
1471		2106
		2107	push @neigh,
1472	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1473	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1474	}	2110	}
1475		2111
1476	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1477	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1478	or next;	2115	or next;
1479	$neigh->load;	2116	$neigh->load;
1480	}	2117	}
1481	}	2118	}
1482		2119
…		…
1487	}	2124	}
1488		2125
1489	sub do_load_sync {	2126	sub do_load_sync {
1490	my ($map) = @_;	2127	my ($map) = @_;
1491		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1492	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1493	}	2133	}
1494		2134
1495	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1496	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1497		2137
1498	sub find_async {	2138	sub find_async {
1499	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1500		2140
1501	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1502		2142
1503	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1504	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1505	}	2145	}
1506		2146
1507	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1508	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1509	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1510	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1511	my $map = find $path	2154	if (my $map = find $k) {
1512	or next;
1513	$map->load;	2155	$map->load if $v;
		2156	}
1514		2157
1515	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1516	}	2159	}
1517	}	2160	}
1518	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1519	};	2162	};
1520	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1523	}	2166	}
1524		2167
1525	sub save {	2168	sub save {
1526	my ($self) = @_;	2169	my ($self) = @_;
1527		2170
1528	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1529		2172
1530	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1531		2174
1532	return unless $self->dirty;	2175	return unless $self->dirty;
1533		2176
…		…
1539	return if $self->{deny_save};	2182	return if $self->{deny_save};
1540		2183
1541	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1542		2185
1543	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1544	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1545	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1546		2192
1547	if ($uniq) {	2193	if ($uniq) {
1548	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1549	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1550	} else {	2196	} else {
…		…
1556	my ($self) = @_;	2202	my ($self) = @_;
1557		2203
1558	# save first because save cedes	2204	# save first because save cedes
1559	$self->save;	2205	$self->save;
1560		2206
1561	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1562		2208
1563	return if $self->players;	2209	return if $self->players;
1564	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1565	return if $self->{deny_save};	2211	return if $self->{deny_save};
1566		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1567	$self->clear;	2217	$self->clear;
1568	$self->in_memory (cf::MAP_SWAPPED);
1569	}	2218	}
1570		2219
1571	sub reset_at {	2220	sub reset_at {
1572	my ($self) = @_;	2221	my ($self) = @_;
1573		2222
1574	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1575	return 1e99 if $self->isa ("ext::map_per_player");#d#
1576	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1577		2225
1578	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1579	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1580		2228
…		…
1591	my ($self) = @_;	2239	my ($self) = @_;
1592		2240
1593	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1594		2242
1595	return if $self->players;	2243	return if $self->players;
1596	return if $self->isa ("ext::map_per_player");#d#
1597		2244
1598	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
1599		2246
1600	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->in_memory (cf::MAP_SWAPPED);
1601		2248
1602	# need to save uniques path	2249	# need to save uniques path
1603	unless ($self->{deny_save}) {	2250	unless ($self->{deny_save}) {
…		…
1607	if $uniq;	2254	if $uniq;
1608	}	2255	}
1609		2256
1610	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1611		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1612	$self->clear;	2261	$self->clear;
1613
1614	$_->clear_links_to ($self) for values %cf::MAP;
1615		2262
1616	$self->unlink_save;	2263	$self->unlink_save;
1617	$self->destroy;	2264	$self->destroy;
1618	}	2265	}
1619		2266
1620	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1621		2268
1622	sub nuke {	2269	sub nuke {
1623	my ($self) = @_;	2270	my ($self) = @_;
1624		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1625	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1626		2276
1627	$self->unlink_save;	2277	$self->unlink_save;
1628		2278
1629	bless $self, "cf::map";	2279	bless $self, "cf::map";
1630	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1631	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1632	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1633	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1634		2284
1635	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1636		2287
1637	$self->reset; # polite request, might not happen	2288	$self->reset; # polite request, might not happen
		2289	}
		2290
		2291	=item $maps = cf::map::tmp_maps
		2292
		2293	Returns an arrayref with all map paths of currently instantiated and saved
		2294	maps. May block.
		2295
		2296	=cut
		2297
		2298	sub tmp_maps() {
		2299	[
		2300	map {
		2301	utf8::decode $_;
		2302	/\.map$/
		2303	? normalise $_
		2304	: ()
		2305	} @{ aio_readdir $TMPDIR or [] }
		2306	]
		2307	}
		2308
		2309	=item $maps = cf::map::random_maps
		2310
		2311	Returns an arrayref with all map paths of currently instantiated and saved
		2312	random maps. May block.
		2313
		2314	=cut
		2315
		2316	sub random_maps() {
		2317	[
		2318	map {
		2319	utf8::decode $_;
		2320	/\.map$/
		2321	? normalise "?random/$_"
		2322	: ()
		2323	} @{ aio_readdir $RANDOMDIR or [] }
		2324	]
1638	}	2325	}
1639		2326
1640	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1641		2328
1642	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1643	instantiated unique items. May block.	2330	instantiated unique items. May block.
1644		2331
1645	=cut	2332	=cut
1646		2333
1647	sub unique_maps() {	2334	sub unique_maps() {
1648	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2335	[
1649	or return;	2336	map {
1650
1651	my @paths;
1652
1653	for (@$files) {
1654	utf8::decode $_;	2337	utf8::decode $_;
1655	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1656	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1657		2340	? ()
1658	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1659	}	2343	]
1660
1661	\@paths
1662	}	2344	}
1663
1664	package cf;
1665		2345
1666	=back	2346	=back
1667		2347
1668	=head3 cf::object	2348	=head3 cf::object
1669		2349
…		…
1673		2353
1674	=over 4	2354	=over 4
1675		2355
1676	=item $ob->inv_recursive	2356	=item $ob->inv_recursive
1677		2357
1678	Returns the inventory of the object _and_ their inventories, recursively.	2358	Returns the inventory of the object I<and> their inventories, recursively,
		2359	but I<not> the object itself.
1679		2360
1680	=cut	2361	=cut
1681		2362
1682	sub inv_recursive_;	2363	sub inv_recursive_;
1683	sub inv_recursive_ {	2364	sub inv_recursive_ {
…		…
1686		2367
1687	sub inv_recursive {	2368	sub inv_recursive {
1688	inv_recursive_ inv $_[0]	2369	inv_recursive_ inv $_[0]
1689	}	2370	}
1690		2371
		2372	=item $ref = $ob->ref
		2373
		2374	Creates and returns a persistent reference to an object that can be stored as a string.
		2375
		2376	=item $ob = cf::object::deref ($refstring)
		2377
		2378	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2379	even if the object actually exists. May block.
		2380
		2381	=cut
		2382
		2383	sub deref {
		2384	my ($ref) = @_;
		2385
		2386	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2387	my ($uuid, $name) = ($1, $2);
		2388	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2389	or return;
		2390	$pl->ob->uuid eq $uuid
		2391	or return;
		2392
		2393	$pl->ob
		2394	} else {
		2395	warn "$ref: cannot resolve object reference\n";
		2396	undef
		2397	}
		2398	}
		2399
1691	package cf;	2400	package cf;
1692		2401
1693	=back	2402	=back
1694		2403
1695	=head3 cf::object::player	2404	=head3 cf::object::player
…		…
1701	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2410	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1702	can be C<undef>. Does the right thing when the player is currently in a	2411	can be C<undef>. Does the right thing when the player is currently in a
1703	dialogue with the given NPC character.	2412	dialogue with the given NPC character.
1704		2413
1705	=cut	2414	=cut
		2415
		2416	our $SAY_CHANNEL = {
		2417	id => "say",
		2418	title => "Map",
		2419	reply => "say ",
		2420	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2421	};
		2422
		2423	our $CHAT_CHANNEL = {
		2424	id => "chat",
		2425	title => "Chat",
		2426	reply => "chat ",
		2427	tooltip => "Player chat and shouts, global to the server.",
		2428	};
1706		2429
1707	# rough implementation of a future "reply" method that works	2430	# rough implementation of a future "reply" method that works
1708	# with dialog boxes.	2431	# with dialog boxes.
1709	#TODO: the first argument must go, split into a $npc->reply_to ( method	2432	#TODO: the first argument must go, split into a $npc->reply_to ( method
1710	sub cf::object::player::reply($$$;$) {	2433	sub cf::object::player::reply($$$;$) {
…		…
1712		2435
1713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1714		2437
1715	if ($self->{record_replies}) {	2438	if ($self->{record_replies}) {
1716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2440
1717	} else {	2441	} else {
		2442	my $pl = $self->contr;
		2443
		2444	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2445	my $dialog = $pl->{npc_dialog};
		2446	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2447
		2448	} else {
1718	$msg = $npc->name . " says: $msg" if $npc;	2449	$msg = $npc->name . " says: $msg" if $npc;
1719	$self->message ($msg, $flags);	2450	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2451	}
1720	}	2452	}
		2453	}
		2454
		2455	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2456
		2457	=cut
		2458
		2459	sub cf::object::send_msg {
		2460	my $pl = shift->contr
		2461	or return;
		2462	$pl->send_msg (@_);
1721	}	2463	}
1722		2464
1723	=item $player_object->may ("access")	2465	=item $player_object->may ("access")
1724		2466
1725	Returns wether the given player is authorized to access resource "access"	2467	Returns wether the given player is authorized to access resource "access"
…		…
1738		2480
1739	=item $player_object->enter_link	2481	=item $player_object->enter_link
1740		2482
1741	Freezes the player and moves him/her to a special map (C<{link}>).	2483	Freezes the player and moves him/her to a special map (C<{link}>).
1742		2484
1743	The player should be reasonably safe there for short amounts of time. You	2485	The player should be reasonably safe there for short amounts of time (e.g.
1744	I<MUST> call C<leave_link> as soon as possible, though.	2486	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2487	though, as the palyer cannot control the character while it is on the link
		2488	map.
1745		2489
1746	Will never block.	2490	Will never block.
1747		2491
1748	=item $player_object->leave_link ($map, $x, $y)	2492	=item $player_object->leave_link ($map, $x, $y)
1749		2493
…		…
1772	$self->deactivate_recursive;	2516	$self->deactivate_recursive;
1773		2517
1774	return if UNIVERSAL::isa $self->map, "ext::map_link";	2518	return if UNIVERSAL::isa $self->map, "ext::map_link";
1775		2519
1776	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2520	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1777	if $self->map;	2521	if $self->map && $self->map->{path} ne "{link}";
1778		2522
1779	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2523	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1780	}	2524	}
1781		2525
1782	sub cf::object::player::leave_link {	2526	sub cf::object::player::leave_link {
1783	my ($self, $map, $x, $y) = @_;	2527	my ($self, $map, $x, $y) = @_;
		2528
		2529	return unless $self->contr->active;
1784		2530
1785	my $link_pos = delete $self->{_link_pos};	2531	my $link_pos = delete $self->{_link_pos};
1786		2532
1787	unless ($map) {	2533	unless ($map) {
1788	# restore original map position	2534	# restore original map position
…		…
1802	# use -1 or undef as default coordinates, not 0, 0	2548	# use -1 or undef as default coordinates, not 0, 0
1803	($x, $y) = ($map->enter_x, $map->enter_y)	2549	($x, $y) = ($map->enter_x, $map->enter_y)
1804	if $x <=0 && $y <= 0;	2550	if $x <=0 && $y <= 0;
1805		2551
1806	$map->load;	2552	$map->load;
1807	$map->load_diag;	2553	$map->load_neighbours;
1808		2554
1809	return unless $self->contr->active;	2555	return unless $self->contr->active;
1810	$self->activate_recursive;
1811		2556
1812	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2557	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1813	$self->enter_map ($map, $x, $y);	2558	$self->enter_map ($map, $x, $y);
1814	}
1815		2559
1816	cf::player->attach (	2560	# only activate afterwards, to support waiting in hooks
1817	on_logout => sub {	2561	$self->activate_recursive;
1818	my ($pl) = @_;	2562	}
1819		2563
1820	# abort map switching before logout	2564	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1821	if ($pl->ob->{_link_pos}) {
1822	cf::sync_job {
1823	$pl->ob->leave_link
1824	};
1825	}
1826	},
1827	on_login => sub {
1828	my ($pl) = @_;
1829		2565
1830	# try to abort aborted map switching on player login :)	2566	Moves the player to the given map-path and coordinates by first freezing
1831	# should happen only on crashes	2567	her, loading and preparing them map, calling the provided $check callback
1832	if ($pl->ob->{_link_pos}) {	2568	that has to return the map if sucecssful, and then unfreezes the player on
1833	$pl->ob->enter_link;	2569	the new (success) or old (failed) map position. In either case, $done will
1834	(async {	2570	be called at the end of this process.
1835	$pl->ob->reply (undef,
1836	"There was an internal problem at your last logout, "
1837	. "the server will try to bring you to your intended destination in a second.",
1838	cf::NDI_RED);
1839	# we need this sleep as the login has a concurrent enter_exit running
1840	# and this sleep increases chances of the player not ending up in scorn
1841	Coro::Timer::sleep 1;
1842	$pl->ob->leave_link;
1843	})->prio (2);
1844	}
1845	},
1846	);
1847		2571
1848	=item $player_object->goto ($path, $x, $y)	2572	Note that $check will be called with a potentially non-loaded map, so if
		2573	it needs a loaded map it has to call C<< ->load >>.
1849		2574
1850	=cut	2575	=cut
		2576
		2577	our $GOTOGEN;
1851		2578
1852	sub cf::object::player::goto {	2579	sub cf::object::player::goto {
1853	my ($self, $path, $x, $y) = @_;	2580	my ($self, $path, $x, $y, $check, $done) = @_;
		2581
		2582	# do generation counting so two concurrent goto's will be executed in-order
		2583	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1854		2584
1855	$self->enter_link;	2585	$self->enter_link;
1856		2586
1857	(async {	2587	(async {
		2588	$Coro::current->{desc} = "player::goto $path $x $y";
		2589
		2590	# *tag paths override both path and x|y
		2591	if ($path =~ /^\*(.*)$/) {
		2592	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2593	my $ob = $obs[rand @obs];
		2594
		2595	# see if we actually can go there
		2596	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2597	$ob = $obs[rand @obs];
		2598	} else {
		2599	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2600	}
		2601	# else put us there anyways for now #d#
		2602
		2603	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2604	} else {
		2605	($path, $x, $y) = (undef, undef, undef);
		2606	}
		2607	}
		2608
1858	my $map = eval {	2609	my $map = eval {
1859	my $map = cf::map::find $path;	2610	my $map = defined $path ? cf::map::find $path : undef;
		2611
		2612	if ($map) {
1860	$map = $map->customise_for ($self) if $map;	2613	$map = $map->customise_for ($self);
		2614	$map = $check->($map) if $check && $map;
		2615	} else {
		2616	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2617	}
		2618
1861	$map	2619	$map
		2620	};
		2621
		2622	if ($@) {
		2623	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2624	LOG llevError | logBacktrace, Carp::longmess $@;
1862	} or	2625	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2626
		2627	if ($gen == $self->{_goto_generation}) {
		2628	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2629	$self->leave_link ($map, $x, $y);
		2630	}
		2631
		2632	$done->() if $done;
1866	})->prio (1);	2633	})->prio (1);
1867	}	2634	}
1868		2635
1869	=item $player_object->enter_exit ($exit_object)	2636	=item $player_object->enter_exit ($exit_object)
1870		2637
…		…
1890	}	2657	}
1891		2658
1892	sub prepare_random_map {	2659	sub prepare_random_map {
1893	my ($exit) = @_;	2660	my ($exit) = @_;
1894		2661
1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1896
1897	# all this does is basically replace the /! path by	2662	# all this does is basically replace the /! path by
1898	# a new random map path (?random/...) with a seed	2663	# a new random map path (?random/...) with a seed
1899	# that depends on the exit object	2664	# that depends on the exit object
1900		2665
1901	my $rmp = parse_random_map_params $exit->msg;	2666	my $rmp = parse_random_map_params $exit->msg;
…		…
1903	if ($exit->map) {	2668	if ($exit->map) {
1904	$rmp->{region} = $exit->region->name;	2669	$rmp->{region} = $exit->region->name;
1905	$rmp->{origin_map} = $exit->map->path;	2670	$rmp->{origin_map} = $exit->map->path;
1906	$rmp->{origin_x} = $exit->x;	2671	$rmp->{origin_x} = $exit->x;
1907	$rmp->{origin_y} = $exit->y;	2672	$rmp->{origin_y} = $exit->y;
		2673
		2674	$exit->map->touch;
1908	}	2675	}
1909		2676
1910	$rmp->{random_seed} ||= $exit->random_seed;	2677	$rmp->{random_seed} ||= $exit->random_seed;
1911		2678
1912	my $data = cf::to_json $rmp;	2679	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1913	my $md5 = Digest::MD5::md5_hex $data;	2680	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2681	my $meta = "$RANDOMDIR/$md5.meta";
1915		2682
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2683	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	2684	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	2685	undef $fh;
1919	aio_rename "$meta~", $meta;	2686	aio_rename "$meta~", $meta;
1920		2687
		2688	my $slaying = "?random/$md5";
		2689
		2690	if ($exit->valid) {
1921	$exit->slaying ("?random/$md5");	2691	$exit->slaying ("?random/$md5");
1922	$exit->msg (undef);	2692	$exit->msg (undef);
		2693	}
1923	}	2694	}
1924	}	2695	}
1925		2696
1926	sub cf::object::player::enter_exit {	2697	sub cf::object::player::enter_exit {
1927	my ($self, $exit) = @_;	2698	my ($self, $exit) = @_;
1928		2699
1929	return unless $self->type == cf::PLAYER;	2700	return unless $self->type == cf::PLAYER;
1930		2701
1931	if ($exit->slaying eq "/!") {
1932	#TODO: this should de-fi-ni-te-ly not be a sync-job
1933	cf::sync_job { prepare_random_map $exit };
1934	}
1935
1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1937	my $hp = $exit->stats->hp;
1938	my $sp = $exit->stats->sp;
1939
1940	$self->enter_link;	2702	$self->enter_link;
1941		2703
1942	(async {	2704	(async {
1943	$self->deactivate_recursive; # just to be sure	2705	$Coro::current->{desc} = "enter_exit";
		2706
1944	unless (eval {	2707	unless (eval {
		2708	$self->deactivate_recursive; # just to be sure
		2709
		2710	# random map handling
		2711	{
		2712	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2713
		2714	prepare_random_map $exit
		2715	if $exit->slaying eq "/!";
		2716	}
		2717
		2718	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2719	my $x = $exit->stats->hp;
		2720	my $y = $exit->stats->sp;
		2721
1945	$self->goto ($slaying, $hp, $sp);	2722	$self->goto ($map, $x, $y);
1946		2723
		2724	# if exit is damned, update players death & WoR home-position
		2725	$self->contr->savebed ($map, $x, $y)
		2726	if $exit->flag (cf::FLAG_DAMNED);
		2727
1947	1;	2728	1
1948	}) {	2729	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	2730	$self->message ("Something went wrong deep within the deliantra server. "
1950	. "I'll try to bring you back to the map you were before. "	2731	. "I'll try to bring you back to the map you were before. "
1951	. "Please report this to the dungeon master!",	2732	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	2733	cf::NDI_UNIQUE | cf::NDI_RED);
1953		2734
1954	warn "ERROR in enter_exit: $@";	2735	warn "ERROR in enter_exit: $@";
1955	$self->leave_link;	2736	$self->leave_link;
1956	}	2737	}
1957	})->prio (1);	2738	})->prio (1);
…		…
1970		2751
1971	sub cf::client::send_drawinfo {	2752	sub cf::client::send_drawinfo {
1972	my ($self, $text, $flags) = @_;	2753	my ($self, $text, $flags) = @_;
1973		2754
1974	utf8::encode $text;	2755	utf8::encode $text;
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2756	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1976	}	2757	}
1977		2758
		2759	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2760
		2761	Send a drawinfo or msg packet to the client, formatting the msg for the
		2762	client if neccessary. C<$type> should be a string identifying the type of
		2763	the message, with C<log> being the default. If C<$color> is negative, suppress
		2764	the message unless the client supports the msg packet.
		2765
		2766	=cut
		2767
		2768	# non-persistent channels (usually the info channel)
		2769	our %CHANNEL = (
		2770	"c/identify" => {
		2771	id => "infobox",
		2772	title => "Identify",
		2773	reply => undef,
		2774	tooltip => "Items recently identified",
		2775	},
		2776	"c/examine" => {
		2777	id => "infobox",
		2778	title => "Examine",
		2779	reply => undef,
		2780	tooltip => "Signs and other items you examined",
		2781	},
		2782	"c/book" => {
		2783	id => "infobox",
		2784	title => "Book",
		2785	reply => undef,
		2786	tooltip => "The contents of a note or book",
		2787	},
		2788	"c/lookat" => {
		2789	id => "infobox",
		2790	title => "Look",
		2791	reply => undef,
		2792	tooltip => "What you saw there",
		2793	},
		2794	"c/who" => {
		2795	id => "infobox",
		2796	title => "Players",
		2797	reply => undef,
		2798	tooltip => "Shows players who are currently online",
		2799	},
		2800	"c/body" => {
		2801	id => "infobox",
		2802	title => "Body Parts",
		2803	reply => undef,
		2804	tooltip => "Shows which body parts you posess and are available",
		2805	},
		2806	"c/statistics" => {
		2807	id => "infobox",
		2808	title => "Statistics",
		2809	reply => undef,
		2810	tooltip => "Shows your primary statistics",
		2811	},
		2812	"c/skills" => {
		2813	id => "infobox",
		2814	title => "Skills",
		2815	reply => undef,
		2816	tooltip => "Shows your experience per skill and item power",
		2817	},
		2818	"c/shopitems" => {
		2819	id => "infobox",
		2820	title => "Shop Items",
		2821	reply => undef,
		2822	tooltip => "Shows the items currently for sale in this shop",
		2823	},
		2824	"c/resistances" => {
		2825	id => "infobox",
		2826	title => "Resistances",
		2827	reply => undef,
		2828	tooltip => "Shows your resistances",
		2829	},
		2830	"c/pets" => {
		2831	id => "infobox",
		2832	title => "Pets",
		2833	reply => undef,
		2834	tooltip => "Shows information abotu your pets/a specific pet",
		2835	},
		2836	"c/perceiveself" => {
		2837	id => "infobox",
		2838	title => "Perceive Self",
		2839	reply => undef,
		2840	tooltip => "You gained detailed knowledge about yourself",
		2841	},
		2842	"c/uptime" => {
		2843	id => "infobox",
		2844	title => "Uptime",
		2845	reply => undef,
		2846	tooltip => "How long the server has been running since last restart",
		2847	},
		2848	"c/mapinfo" => {
		2849	id => "infobox",
		2850	title => "Map Info",
		2851	reply => undef,
		2852	tooltip => "Information related to the maps",
		2853	},
		2854	"c/party" => {
		2855	id => "party",
		2856	title => "Party",
		2857	reply => "gsay ",
		2858	tooltip => "Messages and chat related to your party",
		2859	},
		2860	"c/death" => {
		2861	id => "death",
		2862	title => "Death",
		2863	reply => undef,
		2864	tooltip => "Reason for and more info about your most recent death",
		2865	},
		2866	"c/say" => $SAY_CHANNEL,
		2867	"c/chat" => $CHAT_CHANNEL,
		2868	);
		2869
		2870	sub cf::client::send_msg {
		2871	my ($self, $channel, $msg, $color, @extra) = @_;
		2872
		2873	$msg = $self->pl->expand_cfpod ($msg)
		2874	unless $color & cf::NDI_VERBATIM;
		2875
		2876	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2877
		2878	# check predefined channels, for the benefit of C
		2879	if ($CHANNEL{$channel}) {
		2880	$channel = $CHANNEL{$channel};
		2881
		2882	$self->ext_msg (channel_info => $channel);
		2883	$channel = $channel->{id};
		2884
		2885	} elsif (ref $channel) {
		2886	# send meta info to client, if not yet sent
		2887	unless (exists $self->{channel}{$channel->{id}}) {
		2888	$self->{channel}{$channel->{id}} = $channel;
		2889	$self->ext_msg (channel_info => $channel);
		2890	}
		2891
		2892	$channel = $channel->{id};
		2893	}
		2894
		2895	return unless @extra || length $msg;
		2896
		2897	# default colour, mask it out
		2898	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2899	if $color & cf::NDI_DEF;
		2900
		2901	my $pkt = "msg "
		2902	. $self->{json_coder}->encode (
		2903	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2904	);
		2905
		2906	# try lzf for large packets
		2907	$pkt = "lzf " . Compress::LZF::compress $pkt
		2908	if 1024 <= length $pkt and $self->{can_lzf};
		2909
		2910	# split very large packets
		2911	if (8192 < length $pkt and $self->{can_lzf}) {
		2912	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2913	$pkt = "frag";
		2914	}
		2915
		2916	$self->send_packet ($pkt);
		2917	}
		2918
		2919	=item $client->ext_msg ($type, @msg)
		2920
		2921	Sends an ext event to the client.
		2922
		2923	=cut
		2924
		2925	sub cf::client::ext_msg($$@) {
		2926	my ($self, $type, @msg) = @_;
		2927
		2928	if ($self->extcmd == 2) {
		2929	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2930	} elsif ($self->extcmd == 1) { # TODO: remove
		2931	push @msg, msgtype => "event_$type";
		2932	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2933	}
		2934	}
		2935
		2936	=item $client->ext_reply ($msgid, @msg)
		2937
		2938	Sends an ext reply to the client.
		2939
		2940	=cut
		2941
		2942	sub cf::client::ext_reply($$@) {
		2943	my ($self, $id, @msg) = @_;
		2944
		2945	if ($self->extcmd == 2) {
		2946	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2947	} elsif ($self->extcmd == 1) {
		2948	#TODO: version 1, remove
		2949	unshift @msg, msgtype => "reply", msgid => $id;
		2950	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2951	}
		2952	}
1978		2953
1979	=item $success = $client->query ($flags, "text", \&cb)	2954	=item $success = $client->query ($flags, "text", \&cb)
1980		2955
1981	Queues a query to the client, calling the given callback with	2956	Queues a query to the client, calling the given callback with
1982	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2957	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1983	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2958	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1984		2959
1985	Queries can fail, so check the return code. Or don't, as queries will become	2960	Queries can fail, so check the return code. Or don't, as queries will
1986	reliable at some point in the future.	2961	become reliable at some point in the future.
1987		2962
1988	=cut	2963	=cut
1989		2964
1990	sub cf::client::query {	2965	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	2966	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	2974	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2975	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		2976
2002	$self->send_packet ($self->{query_queue}[0][0])	2977	$self->send_packet ($self->{query_queue}[0][0])
2003	if @{ $self->{query_queue} } == 1;	2978	if @{ $self->{query_queue} } == 1;
		2979
		2980	1
2004	}	2981	}
2005		2982
2006	cf::client->attach (	2983	cf::client->attach (
		2984	on_connect => sub {
		2985	my ($ns) = @_;
		2986
		2987	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2988	},
2007	on_reply => sub {	2989	on_reply => sub {
2008	my ($ns, $msg) = @_;	2990	my ($ns, $msg) = @_;
2009		2991
2010	# this weird shuffling is so that direct followup queries	2992	# this weird shuffling is so that direct followup queries
2011	# get handled first	2993	# get handled first
…		…
2023	} else {	3005	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3006	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	3007	}
2026	}	3008	}
2027	},	3009	},
		3010	on_exticmd => sub {
		3011	my ($ns, $buf) = @_;
		3012
		3013	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3014
		3015	if (ref $msg) {
		3016	my ($type, $reply, @payload) =
		3017	"ARRAY" eq ref $msg
		3018	? @$msg
		3019	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3020
		3021	my @reply;
		3022
		3023	if (my $cb = $EXTICMD{$type}) {
		3024	@reply = $cb->($ns, @payload);
		3025	}
		3026
		3027	$ns->ext_reply ($reply, @reply)
		3028	if $reply;
		3029
		3030	} else {
		3031	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3032	}
		3033
		3034	cf::override;
		3035	},
2028	);	3036	);
2029		3037
2030	=item $client->async (\&cb)	3038	=item $client->async (\&cb)
2031		3039
2032	Create a new coroutine, running the specified callback. The coroutine will	3040	Create a new coroutine, running the specified callback. The coroutine will
…		…
2073	our $safe = new Safe "safe";	3081	our $safe = new Safe "safe";
2074	our $safe_hole = new Safe::Hole;	3082	our $safe_hole = new Safe::Hole;
2075		3083
2076	$SIG{FPE} = 'IGNORE';	3084	$SIG{FPE} = 'IGNORE';
2077		3085
2078	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3086	$safe->permit_only (Opcode::opset qw(
		3087	:base_core :base_mem :base_orig :base_math
		3088	grepstart grepwhile mapstart mapwhile
		3089	sort time
		3090	));
2079		3091
2080	# here we export the classes and methods available to script code	3092	# here we export the classes and methods available to script code
2081		3093
2082	=pod	3094	=pod
2083		3095
2084	The following fucntions and emthods are available within a safe environment:	3096	The following functions and methods are available within a safe environment:
2085		3097
2086	cf::object contr pay_amount pay_player map	3098	cf::object
		3099	contr pay_amount pay_player map x y force_find force_add destroy
		3100	insert remove name archname title slaying race decrease split
		3101	value
		3102
2087	cf::object::player player	3103	cf::object::player
2088	cf::player peaceful	3104	player
2089	cf::map trigger	3105
		3106	cf::player
		3107	peaceful
		3108
		3109	cf::map
		3110	trigger
2090		3111
2091	=cut	3112	=cut
2092		3113
2093	for (	3114	for (
2094	["cf::object" => qw(contr pay_amount pay_player map)],	3115	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3116	insert remove inv nrof name archname title slaying race
		3117	decrease split destroy change_exp value msg lore send_msg)],
2095	["cf::object::player" => qw(player)],	3118	["cf::object::player" => qw(player)],
2096	["cf::player" => qw(peaceful)],	3119	["cf::player" => qw(peaceful send_msg)],
2097	["cf::map" => qw(trigger)],	3120	["cf::map" => qw(trigger)],
2098	) {	3121	) {
2099	no strict 'refs';	3122	no strict 'refs';
2100	my ($pkg, @funs) = @$_;	3123	my ($pkg, @funs) = @$_;
2101	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3124	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2118	my ($code, %vars) = @_;	3141	my ($code, %vars) = @_;
2119		3142
2120	my $qcode = $code;	3143	my $qcode = $code;
2121	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3144	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2122	$qcode =~ s/\n/\\n/g;	3145	$qcode =~ s/\n/\\n/g;
		3146
		3147	%vars = (_dummy => 0) unless %vars;
2123		3148
2124	local $_;	3149	local $_;
2125	local @safe::cf::_safe_eval_args = values %vars;	3150	local @safe::cf::_safe_eval_args = values %vars;
2126		3151
2127	my $eval =	3152	my $eval =
…		…
2170	=back	3195	=back
2171		3196
2172	=cut	3197	=cut
2173		3198
2174	#############################################################################	3199	#############################################################################
2175
2176	=head2 EXTENSION DATABASE SUPPORT
2177
2178	Crossfire maintains a very simple database for extension use. It can
2179	currently store anything that can be serialised using Storable, which
2180	excludes objects.
2181
2182	The parameter C<$family> should best start with the name of the extension
2183	using it, it should be unique.
2184
2185	=over 4
2186
2187	=item $value = cf::db_get $family => $key
2188
2189	Returns a single value from the database.
2190
2191	=item cf::db_put $family => $key => $value
2192
2193	Stores the given C<$value> in the family.
2194
2195	=cut
2196
2197	our $DB;
2198
2199	sub db_init {
2200	unless ($DB) {
2201	$DB = BDB::db_create $DB_ENV;
2202
2203	cf::sync_job {
2204	eval {
2205	$DB->set_flags (BDB::CHKSUM);
2206
2207	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2208	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2209	cf::cleanup "db_open(db): $!" if $!;
2210	};
2211	cf::cleanup "db_open(db): $@" if $@;
2212	};
2213
2214	my $path = cf::localdir . "/database.pst";
2215	if (stat $path) {
2216	cf::sync_job {
2217	my $pst = Storable::retrieve $path;
2218
2219	cf::db_put (board => data => $pst->{board});
2220	cf::db_put (guildrules => data => $pst->{guildrules});
2221	cf::db_put (rent => balance => $pst->{rent}{balance});
2222	BDB::db_env_txn_checkpoint $DB_ENV;
2223
2224	unlink $path;
2225	};
2226	}
2227	}
2228	}
2229
2230	sub db_get($$) {
2231	my $key = "$_[0]/$_[1]";
2232
2233	cf::sync_job {
2234	BDB::db_get $DB, undef, $key, my $data;
2235
2236	$! ? ()
2237	: Compress::LZF::sthaw $data
2238	}
2239	}
2240
2241	sub db_put($$$) {
2242	BDB::dbreq_pri 4;
2243	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2244	}
2245
2246	#############################################################################
2247	# the server's init and main functions	3200	# the server's init and main functions
2248		3201
2249	sub init_resources {	3202	sub load_facedata($) {
2250	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3203	my ($path) = @_;
		3204
		3205	# HACK to clear player env face cache, we need some signal framework
		3206	# for this (global event?)
		3207	%ext::player_env::MUSIC_FACE_CACHE = ();
		3208
		3209	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3210
		3211	warn "loading facedata from $path\n";
		3212
		3213	my $facedata;
		3214	0 < aio_load $path, $facedata
		3215	or die "$path: $!";
		3216
		3217	$facedata = Coro::Storable::thaw $facedata;
		3218
		3219	$facedata->{version} == 2
		3220	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3221
		3222	# patch in the exptable
		3223	$facedata->{resource}{"res/exp_table"} = {
		3224	type => FT_RSRC,
		3225	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3226	};
		3227	cf::cede_to_tick;
		3228
		3229	{
		3230	my $faces = $facedata->{faceinfo};
		3231
		3232	while (my ($face, $info) = each %$faces) {
		3233	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3234
		3235	cf::face::set_visibility $idx, $info->{visibility};
		3236	cf::face::set_magicmap $idx, $info->{magicmap};
		3237	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3238	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3239
		3240	cf::cede_to_tick;
		3241	}
		3242
		3243	while (my ($face, $info) = each %$faces) {
		3244	next unless $info->{smooth};
		3245
		3246	my $idx = cf::face::find $face
		3247	or next;
		3248
		3249	if (my $smooth = cf::face::find $info->{smooth}) {
		3250	cf::face::set_smooth $idx, $smooth;
		3251	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3252	} else {
		3253	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3254	}
		3255
		3256	cf::cede_to_tick;
		3257	}
		3258	}
		3259
		3260	{
		3261	my $anims = $facedata->{animinfo};
		3262
		3263	while (my ($anim, $info) = each %$anims) {
		3264	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3265	cf::cede_to_tick;
		3266	}
		3267
		3268	cf::anim::invalidate_all; # d'oh
		3269	}
		3270
		3271	{
		3272	# TODO: for gcfclient pleasure, we should give resources
		3273	# that gcfclient doesn't grok a >10000 face index.
		3274	my $res = $facedata->{resource};
		3275
		3276	while (my ($name, $info) = each %$res) {
		3277	if (defined $info->{type}) {
		3278	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3279	my $data;
		3280
		3281	if ($info->{type} & 1) {
		3282	# prepend meta info
		3283
		3284	my $meta = $enc->encode ({
		3285	name => $name,
		3286	%{ $info->{meta} || {} },
		3287	});
		3288
		3289	$data = pack "(w/a*)*", $meta, $info->{data};
		3290	} else {
		3291	$data = $info->{data};
		3292	}
		3293
		3294	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3295	cf::face::set_type $idx, $info->{type};
		3296	} else {
		3297	$RESOURCE{$name} = $info;
		3298	}
		3299
		3300	cf::cede_to_tick;
		3301	}
		3302	}
		3303
		3304	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3305
		3306	1
		3307	}
		3308
		3309	cf::global->attach (on_resource_update => sub {
		3310	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3311	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3312
		3313	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3314	my $sound = $soundconf->{compat}[$_]
		3315	or next;
		3316
		3317	my $face = cf::face::find "sound/$sound->[1]";
		3318	cf::sound::set $sound->[0] => $face;
		3319	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3320	}
		3321
		3322	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3323	my $face = cf::face::find "sound/$v";
		3324	cf::sound::set $k => $face;
		3325	}
		3326	}
		3327	});
		3328
		3329	register_exticmd fx_want => sub {
		3330	my ($ns, $want) = @_;
		3331
		3332	while (my ($k, $v) = each %$want) {
		3333	$ns->fx_want ($k, $v);
		3334	}
		3335	};
		3336
		3337	sub load_resource_file($) {
		3338	my $guard = lock_acquire "load_resource_file";
		3339
		3340	my $status = load_resource_file_ $_[0];
		3341	get_slot 0.1, 100;
		3342	cf::arch::commit_load;
		3343
		3344	$status
		3345	}
		3346
		3347	sub reload_regions {
		3348	# HACK to clear player env face cache, we need some signal framework
		3349	# for this (global event?)
		3350	%ext::player_env::MUSIC_FACE_CACHE = ();
		3351
		3352	load_resource_file "$MAPDIR/regions"
2251	or die "unable to load regions file\n";#d#	3353	or die "unable to load regions file\n";
2252	}
2253		3354
2254	sub cfg_load {	3355	for (cf::region::list) {
		3356	$_->{match} = qr/$_->{match}/
		3357	if exists $_->{match};
		3358	}
		3359	}
		3360
		3361	sub reload_facedata {
		3362	load_facedata "$DATADIR/facedata"
		3363	or die "unable to load facedata\n";
		3364	}
		3365
		3366	sub reload_archetypes {
		3367	load_resource_file "$DATADIR/archetypes"
		3368	or die "unable to load archetypes\n";
		3369	}
		3370
		3371	sub reload_treasures {
		3372	load_resource_file "$DATADIR/treasures"
		3373	or die "unable to load treasurelists\n";
		3374	}
		3375
		3376	sub reload_resources {
		3377	warn "reloading resource files...\n";
		3378
		3379	reload_facedata;
		3380	reload_archetypes;
		3381	reload_regions;
		3382	reload_treasures;
		3383
		3384	warn "finished reloading resource files\n";
		3385	}
		3386
		3387	sub reload_config {
2255	open my $fh, "<:utf8", cf::confdir . "/config"	3388	open my $fh, "<:utf8", "$CONFDIR/config"
2256	or return;	3389	or return;
2257		3390
2258	local $/;	3391	local $/;
2259	*CFG = YAML::Syck::Load <$fh>;	3392	*CFG = YAML::XS::Load <$fh>;
2260		3393
2261	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3394	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2262		3395
2263	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3396	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2264	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3397	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2270	};	3403	};
2271	warn $@ if $@;	3404	warn $@ if $@;
2272	}	3405	}
2273	}	3406	}
2274		3407
2275	sub init {	3408	sub pidfile() {
2276	init_resources;	3409	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3410	or die "$PIDFILE: $!";
		3411	flock $fh, &Fcntl::LOCK_EX
		3412	or die "$PIDFILE: flock: $!";
		3413	$fh
		3414	}
		3415
		3416	# make sure only one server instance is running at any one time
		3417	sub atomic {
		3418	my $fh = pidfile;
		3419
		3420	my $pid = <$fh>;
		3421	kill 9, $pid if $pid > 0;
		3422
		3423	seek $fh, 0, 0;
		3424	print $fh $$;
		3425	}
		3426
		3427	sub main_loop {
		3428	warn "EV::loop starting\n";
		3429	if (1) {
		3430	EV::loop;
		3431	}
		3432	warn "EV::loop returned\n";
		3433	goto &main_loop unless $REALLY_UNLOOP;
2277	}	3434	}
2278		3435
2279	sub main {	3436	sub main {
		3437	cf::init_globals; # initialise logging
		3438
		3439	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3440	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3441	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3442	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3443
		3444	cf::init_experience;
		3445	cf::init_anim;
		3446	cf::init_attackmess;
		3447	cf::init_dynamic;
		3448
		3449	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3450
2280	# we must not ever block the main coroutine	3451	# we must not ever block the main coroutine
2281	local $Coro::idle = sub {	3452	local $Coro::idle = sub {
2282	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3453	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2283	(async {	3454	(async {
2284	Event::one_event;	3455	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3456	EV::loop EV::LOOP_ONESHOT;
2285	})->prio (Coro::PRIO_MAX);	3457	})->prio (Coro::PRIO_MAX);
2286	};	3458	};
2287		3459
2288	cfg_load;	3460	evthread_start IO::AIO::poll_fileno;
		3461
		3462	cf::sync_job {
		3463	reload_resources;
		3464	reload_config;
2289	db_init;	3465	db_init;
		3466
		3467	cf::load_settings;
		3468	cf::load_materials;
		3469	cf::init_uuid;
		3470	cf::init_signals;
		3471	cf::init_commands;
		3472	cf::init_skills;
		3473
		3474	cf::init_beforeplay;
		3475
		3476	atomic;
		3477
2290	load_extensions;	3478	load_extensions;
2291		3479
2292	$TICK_WATCHER->start;	3480	utime time, time, $RUNTIMEFILE;
2293	Event::loop;	3481
		3482	# no (long-running) fork's whatsoever before this point(!)
		3483	use POSIX ();
		3484	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3485
		3486	(pop @POST_INIT)->(0) while @POST_INIT;
		3487	};
		3488
		3489	main_loop;
2294	}	3490	}
2295		3491
2296	#############################################################################	3492	#############################################################################
2297	# initialisation and cleanup	3493	# initialisation and cleanup
2298		3494
2299	# install some emergency cleanup handlers	3495	# install some emergency cleanup handlers
2300	BEGIN {	3496	BEGIN {
		3497	our %SIGWATCHER = ();
2301	for my $signal (qw(INT HUP TERM)) {	3498	for my $signal (qw(INT HUP TERM)) {
2302	Event->signal (	3499	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2303	reentrant => 0,
2304	data => WF_AUTOCANCEL,
2305	signal => $signal,
2306	prio => 0,
2307	cb => sub {
2308	cf::cleanup "SIG$signal";	3500	cf::cleanup "SIG$signal";
2309	},
2310	);	3501	};
		3502	}
		3503	}
		3504
		3505	sub write_runtime_sync {
		3506	# first touch the runtime file to show we are still running:
		3507	# the fsync below can take a very very long time.
		3508
		3509	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3510
		3511	my $guard = cf::lock_acquire "write_runtime";
		3512
		3513	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3514	or return;
		3515
		3516	my $value = $cf::RUNTIME + 90 + 10;
		3517	# 10 is the runtime save interval, for a monotonic clock
		3518	# 60 allows for the watchdog to kill the server.
		3519
		3520	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3521	and return;
		3522
		3523	# always fsync - this file is important
		3524	aio_fsync $fh
		3525	and return;
		3526
		3527	# touch it again to show we are up-to-date
		3528	aio_utime $fh, undef, undef;
		3529
		3530	close $fh
		3531	or return;
		3532
		3533	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3534	and return;
		3535
		3536	warn "runtime file written.\n";
		3537
2311	}	3538	1
		3539	}
		3540
		3541	our $uuid_lock;
		3542	our $uuid_skip;
		3543
		3544	sub write_uuid_sync($) {
		3545	$uuid_skip ||= $_[0];
		3546
		3547	return if $uuid_lock;
		3548	local $uuid_lock = 1;
		3549
		3550	my $uuid = "$LOCALDIR/uuid";
		3551
		3552	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3553	or return;
		3554
		3555	my $value = uuid_seq uuid_cur;
		3556
		3557	unless ($value) {
		3558	warn "cowardly refusing to write zero uuid value!\n";
		3559	return;
		3560	}
		3561
		3562	my $value = uuid_str $value + $uuid_skip;
		3563	$uuid_skip = 0;
		3564
		3565	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3566	and return;
		3567
		3568	# always fsync - this file is important
		3569	aio_fsync $fh
		3570	and return;
		3571
		3572	close $fh
		3573	or return;
		3574
		3575	aio_rename "$uuid~", $uuid
		3576	and return;
		3577
		3578	warn "uuid file written ($value).\n";
		3579
		3580	1
		3581
		3582	}
		3583
		3584	sub write_uuid($$) {
		3585	my ($skip, $sync) = @_;
		3586
		3587	$sync ? write_uuid_sync $skip
		3588	: async { write_uuid_sync $skip };
2312	}	3589	}
2313		3590
2314	sub emergency_save() {	3591	sub emergency_save() {
2315	my $freeze_guard = cf::freeze_mainloop;	3592	my $freeze_guard = cf::freeze_mainloop;
2316		3593
2317	warn "enter emergency perl save\n";	3594	warn "emergency_perl_save: enter\n";
2318		3595
2319	cf::sync_job {	3596	cf::sync_job {
		3597	# this is a trade-off: we want to be very quick here, so
		3598	# save all maps without fsync, and later call a global sync
		3599	# (which in turn might be very very slow)
		3600	local $USE_FSYNC = 0;
		3601
2320	# use a peculiar iteration method to avoid tripping on perl	3602	# use a peculiar iteration method to avoid tripping on perl
2321	# refcount bugs in for. also avoids problems with players	3603	# refcount bugs in for. also avoids problems with players
2322	# and maps saved/destroyed asynchronously.	3604	# and maps saved/destroyed asynchronously.
2323	warn "begin emergency player save\n";	3605	warn "emergency_perl_save: begin player save\n";
2324	for my $login (keys %cf::PLAYER) {	3606	for my $login (keys %cf::PLAYER) {
2325	my $pl = $cf::PLAYER{$login} or next;	3607	my $pl = $cf::PLAYER{$login} or next;
2326	$pl->valid or next;	3608	$pl->valid or next;
		3609	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2327	$pl->save;	3610	$pl->save;
2328	}	3611	}
2329	warn "end emergency player save\n";	3612	warn "emergency_perl_save: end player save\n";
2330		3613
2331	warn "begin emergency map save\n";	3614	warn "emergency_perl_save: begin map save\n";
2332	for my $path (keys %cf::MAP) {	3615	for my $path (keys %cf::MAP) {
2333	my $map = $cf::MAP{$path} or next;	3616	my $map = $cf::MAP{$path} or next;
2334	$map->valid or next;	3617	$map->valid or next;
2335	$map->save;	3618	$map->save;
2336	}	3619	}
2337	warn "end emergency map save\n";	3620	warn "emergency_perl_save: end map save\n";
2338		3621
2339	warn "begin emergency database checkpoint\n";	3622	warn "emergency_perl_save: begin database checkpoint\n";
2340	BDB::db_env_txn_checkpoint $DB_ENV;	3623	BDB::db_env_txn_checkpoint $DB_ENV;
2341	warn "end emergency database checkpoint\n";	3624	warn "emergency_perl_save: end database checkpoint\n";
		3625
		3626	warn "emergency_perl_save: begin write uuid\n";
		3627	write_uuid_sync 1;
		3628	warn "emergency_perl_save: end write uuid\n";
2342	};	3629	};
2343		3630
		3631	warn "emergency_perl_save: starting sync()\n";
		3632	IO::AIO::aio_sync sub {
		3633	warn "emergency_perl_save: finished sync()\n";
		3634	};
		3635
2344	warn "leave emergency perl save\n";	3636	warn "emergency_perl_save: leave\n";
2345	}	3637	}
2346		3638
2347	sub post_cleanup {	3639	sub post_cleanup {
2348	my ($make_core) = @_;	3640	my ($make_core) = @_;
2349		3641
2350	warn Carp::longmess "post_cleanup backtrace"	3642	warn Carp::longmess "post_cleanup backtrace"
2351	if $make_core;	3643	if $make_core;
2352	}
2353		3644
		3645	my $fh = pidfile;
		3646	unlink $PIDFILE if <$fh> == $$;
		3647	}
		3648
		3649	# a safer delete_package, copied from Symbol
		3650	sub clear_package($) {
		3651	my $pkg = shift;
		3652
		3653	# expand to full symbol table name if needed
		3654	unless ($pkg =~ /^main::.*::$/) {
		3655	$pkg = "main$pkg" if $pkg =~ /^::/;
		3656	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3657	$pkg .= '::' unless $pkg =~ /::$/;
		3658	}
		3659
		3660	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3661	my $stem_symtab = *{$stem}{HASH};
		3662
		3663	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3664	or return;
		3665
		3666	# clear all symbols
		3667	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3668	for my $name (keys %$leaf_symtab) {
		3669	_gv_clear *{"$pkg$name"};
		3670	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3671	}
		3672	warn "cleared package $pkg\n";#d#
		3673	}
		3674
2354	sub reload() {	3675	sub do_reload_perl() {
2355	# can/must only be called in main	3676	# can/must only be called in main
2356	if ($Coro::current != $Coro::main) {	3677	if ($Coro::current != $Coro::main) {
2357	warn "can only reload from main coroutine";	3678	warn "can only reload from main coroutine";
2358	return;	3679	return;
2359	}	3680	}
2360		3681
		3682	return if $RELOAD++;
		3683
		3684	my $t1 = EV::time;
		3685
		3686	while ($RELOAD) {
2361	warn "reloading...";	3687	warn "reloading...";
2362		3688
2363	warn "entering sync_job";	3689	warn "entering sync_job";
2364		3690
2365	cf::sync_job {	3691	cf::sync_job {
2366	cf::write_runtime; # external watchdog should not bark	3692	cf::write_runtime_sync; # external watchdog should not bark
2367	cf::emergency_save;	3693	cf::emergency_save;
2368	cf::write_runtime; # external watchdog should not bark	3694	cf::write_runtime_sync; # external watchdog should not bark
2369		3695
2370	warn "syncing database to disk";	3696	warn "syncing database to disk";
2371	BDB::db_env_txn_checkpoint $DB_ENV;	3697	BDB::db_env_txn_checkpoint $DB_ENV;
2372		3698
2373	# if anything goes wrong in here, we should simply crash as we already saved	3699	# if anything goes wrong in here, we should simply crash as we already saved
2374		3700
2375	warn "cancelling all WF_AUTOCANCEL watchers";
2376	for (Event::all_watchers) {
2377	$_->cancel if $_->data & WF_AUTOCANCEL;
2378	}
2379
2380	warn "flushing outstanding aio requests";	3701	warn "flushing outstanding aio requests";
2381	for (;;) {
2382	BDB::flush;
2383	IO::AIO::flush;
2384	Coro::cede;
2385	last unless IO::AIO::nreqs || BDB::nreqs;	3702	while (IO::AIO::nreqs || BDB::nreqs) {
2386	warn "iterate...";	3703	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2387	}
2388
2389	warn "cancelling all extension coros";
2390	$_->cancel for values %EXT_CORO;
2391	%EXT_CORO = ();
2392
2393	warn "removing commands";
2394	%COMMAND = ();
2395
2396	warn "removing ext commands";
2397	%EXTCMD = ();
2398
2399	warn "unloading/nuking all extensions";
2400	for my $pkg (@EXTS) {
2401	warn "... unloading $pkg";
2402
2403	if (my $cb = $pkg->can ("unload")) {
2404	eval {
2405	$cb->($pkg);
2406	1
2407	} or warn "$pkg unloaded, but with errors: $@";
2408	}	3704	}
2409		3705
2410	warn "... nuking $pkg";	3706	warn "cancelling all extension coros";
2411	Symbol::delete_package $pkg;	3707	$_->cancel for values %EXT_CORO;
2412	}	3708	%EXT_CORO = ();
2413		3709
2414	warn "unloading all perl modules loaded from $LIBDIR";	3710	warn "removing commands";
2415	while (my ($k, $v) = each %INC) {	3711	%COMMAND = ();
2416	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2417		3712
		3713	warn "removing ext/exti commands";
		3714	%EXTCMD = ();
		3715	%EXTICMD = ();
		3716
		3717	warn "unloading/nuking all extensions";
		3718	for my $pkg (@EXTS) {
2418	warn "... unloading $k";	3719	warn "... unloading $pkg";
2419	delete $INC{$k};
2420		3720
2421	$k =~ s/\.pm$//;
2422	$k =~ s/\//::/g;
2423
2424	if (my $cb = $k->can ("unload_module")) {	3721	if (my $cb = $pkg->can ("unload")) {
		3722	eval {
2425	$cb->();	3723	$cb->($pkg);
		3724	1
		3725	} or warn "$pkg unloaded, but with errors: $@";
		3726	}
		3727
		3728	warn "... clearing $pkg";
		3729	clear_package $pkg;
2426	}	3730	}
2427		3731
2428	Symbol::delete_package $k;	3732	warn "unloading all perl modules loaded from $LIBDIR";
		3733	while (my ($k, $v) = each %INC) {
		3734	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3735
		3736	warn "... unloading $k";
		3737	delete $INC{$k};
		3738
		3739	$k =~ s/\.pm$//;
		3740	$k =~ s/\//::/g;
		3741
		3742	if (my $cb = $k->can ("unload_module")) {
		3743	$cb->();
		3744	}
		3745
		3746	clear_package $k;
2429	}	3747	}
2430		3748
2431	warn "getting rid of safe::, as good as possible";	3749	warn "getting rid of safe::, as good as possible";
2432	Symbol::delete_package "safe::$_"	3750	clear_package "safe::$_"
2433	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3751	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2434		3752
2435	warn "unloading cf.pm \"a bit\"";	3753	warn "unloading cf.pm \"a bit\"";
2436	delete $INC{"cf.pm"};	3754	delete $INC{"cf.pm"};
		3755	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2437		3756
2438	# don't, removes xs symbols, too,	3757	# don't, removes xs symbols, too,
2439	# and global variables created in xs	3758	# and global variables created in xs
2440	#Symbol::delete_package __PACKAGE__;	3759	#clear_package __PACKAGE__;
2441		3760
2442	warn "unload completed, starting to reload now";	3761	warn "unload completed, starting to reload now";
2443		3762
2444	warn "reloading cf.pm";	3763	warn "reloading cf.pm";
2445	require cf;	3764	require cf;
2446	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3765	cf::_connect_to_perl_1;
2447		3766
2448	warn "loading config and database again";	3767	warn "loading config and database again";
2449	cf::cfg_load;	3768	cf::reload_config;
2450		3769
2451	warn "loading extensions";	3770	warn "loading extensions";
2452	cf::load_extensions;	3771	cf::load_extensions;
2453		3772
		3773	if ($REATTACH_ON_RELOAD) {
2454	warn "reattaching attachments to objects/players";	3774	warn "reattaching attachments to objects/players";
2455	_global_reattach;	3775	_global_reattach; # objects, sockets
2456	warn "reattaching attachments to maps";	3776	warn "reattaching attachments to maps";
2457	reattach $_ for values %MAP;	3777	reattach $_ for values %MAP;
		3778	warn "reattaching attachments to players";
		3779	reattach $_ for values %PLAYER;
		3780	}
2458		3781
2459	warn "loading reloadable resources";	3782	warn "running post_init jobs";
2460	init_resources;	3783	(pop @POST_INIT)->(1) while @POST_INIT;
2461		3784
2462	warn "leaving sync_job";	3785	warn "leaving sync_job";
2463		3786
2464	1	3787	1
2465	} or do {	3788	} or do {
2466	warn $@;	3789	warn $@;
2467	warn "error while reloading, exiting.";	3790	cf::cleanup "error while reloading, exiting.";
2468	exit 1;	3791	};
		3792
		3793	warn "reloaded";
		3794	--$RELOAD;
		3795	}
		3796
		3797	$t1 = EV::time - $t1;
		3798	warn "reload completed in ${t1}s\n";
		3799	};
		3800
		3801	our $RELOAD_WATCHER; # used only during reload
		3802
		3803	sub reload_perl() {
		3804	# doing reload synchronously and two reloads happen back-to-back,
		3805	# coro crashes during coro_state_free->destroy here.
		3806
		3807	$RELOAD_WATCHER ||= cf::async {
		3808	Coro::AIO::aio_wait cache_extensions;
		3809
		3810	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3811	do_reload_perl;
		3812	undef $RELOAD_WATCHER;
		3813	};
2469	};	3814	};
2470		3815	}
2471	warn "reloaded";
2472	};
2473
2474	our $RELOAD_WATCHER; # used only during reload
2475		3816
2476	register_command "reload" => sub {	3817	register_command "reload" => sub {
2477	my ($who, $arg) = @_;	3818	my ($who, $arg) = @_;
2478		3819
2479	if ($who->flag (FLAG_WIZ)) {	3820	if ($who->flag (FLAG_WIZ)) {
2480	$who->message ("reloading server.");	3821	$who->message ("reloading server.");
2481		3822	async {
2482	# doing reload synchronously and two reloads happen back-to-back,	3823	$Coro::current->{desc} = "perl_reload";
2483	# coro crashes during coro_state_free->destroy here.
2484
2485	$RELOAD_WATCHER ||= Event->timer (
2486	reentrant => 0,
2487	after => 0,
2488	data => WF_AUTOCANCEL,
2489	cb => sub {
2490	reload;	3824	reload_perl;
2491	undef $RELOAD_WATCHER;
2492	},
2493	);	3825	};
2494	}	3826	}
2495	};	3827	};
2496		3828
2497	unshift @INC, $LIBDIR;	3829	unshift @INC, $LIBDIR;
2498		3830
2499	my $bug_warning = 0;	3831	my $bug_warning = 0;
2500		3832
2501	$TICK_WATCHER = Event->timer (	3833	our @WAIT_FOR_TICK;
2502	reentrant => 0,	3834	our @WAIT_FOR_TICK_BEGIN;
2503	parked => 1,	3835
2504	prio => 0,	3836	sub wait_for_tick {
2505	at => $NEXT_TICK || $TICK,	3837	return if tick_inhibit || $Coro::current == $Coro::main;
2506	data => WF_AUTOCANCEL,	3838
2507	cb => sub {	3839	my $signal = new Coro::Signal;
		3840	push @WAIT_FOR_TICK, $signal;
		3841	$signal->wait;
		3842	}
		3843
		3844	sub wait_for_tick_begin {
		3845	return if tick_inhibit || $Coro::current == $Coro::main;
		3846
		3847	my $signal = new Coro::Signal;
		3848	push @WAIT_FOR_TICK_BEGIN, $signal;
		3849	$signal->wait;
		3850	}
		3851
		3852	sub tick {
2508	if ($Coro::current != $Coro::main) {	3853	if ($Coro::current != $Coro::main) {
2509	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3854	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2510	unless ++$bug_warning > 10;	3855	unless ++$bug_warning > 10;
2511	return;	3856	return;
2512	}	3857	}
2513		3858
2514	$NOW = Event::time;
2515
2516	cf::server_tick; # one server iteration	3859	cf::server_tick; # one server iteration
2517	$RUNTIME += $TICK;
2518	$NEXT_TICK += $TICK;
2519		3860
2520	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3861	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2521	$NEXT_RUNTIME_WRITE = $NOW + 10;	3862	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2522	Coro::async_pool {	3863	Coro::async_pool {
		3864	$Coro::current->{desc} = "runtime saver";
2523	write_runtime	3865	write_runtime_sync
2524	or warn "ERROR: unable to write runtime file: $!";	3866	or warn "ERROR: unable to write runtime file: $!";
2525	};
2526	}	3867	};
2527
2528	$WAIT_FOR_TICK->broadcast;
2529	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2530
2531	# my $AFTER = Event::time;
2532	# warn $AFTER - $NOW;#d#
2533
2534	# if we are delayed by four ticks or more, skip them all
2535	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2536
2537	$TICK_WATCHER->at ($NEXT_TICK);
2538	$TICK_WATCHER->start;
2539	},	3868	}
2540	);	3869
		3870	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3871	$sig->send;
		3872	}
		3873	while (my $sig = shift @WAIT_FOR_TICK) {
		3874	$sig->send;
		3875	}
		3876
		3877	$LOAD = ($NOW - $TICK_START) / $TICK;
		3878	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3879
		3880	if (0) {
		3881	if ($NEXT_TICK) {
		3882	my $jitter = $TICK_START - $NEXT_TICK;
		3883	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3884	warn "jitter $JITTER\n";#d#
		3885	}
		3886	}
		3887	}
2541		3888
2542	{	3889	{
2543	BDB::max_poll_time $TICK * 0.1;	3890	# configure BDB
2544	$BDB_POLL_WATCHER = Event->io (	3891
2545	reentrant => 0,
2546	fd => BDB::poll_fileno,
2547	poll => 'r',
2548	prio => 0,
2549	data => WF_AUTOCANCEL,
2550	cb => \&BDB::poll_cb,
2551	);
2552	BDB::min_parallel 8;	3892	BDB::min_parallel 8;
2553		3893	BDB::max_poll_reqs $TICK * 0.1;
2554	BDB::set_sync_prepare {	3894	$AnyEvent::BDB::WATCHER->priority (1);
2555	my $status;
2556	my $current = $Coro::current;
2557	(
2558	sub {
2559	$status = $!;
2560	$current->ready; undef $current;
2561	},
2562	sub {
2563	Coro::schedule while defined $current;
2564	$! = $status;
2565	},
2566	)
2567	};
2568		3895
2569	unless ($DB_ENV) {	3896	unless ($DB_ENV) {
2570	$DB_ENV = BDB::db_env_create;	3897	$DB_ENV = BDB::db_env_create;
		3898	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3899	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3900	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3901	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3902	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2571		3903
2572	cf::sync_job {	3904	cf::sync_job {
2573	eval {	3905	eval {
2574	BDB::db_env_open	3906	BDB::db_env_open
2575	$DB_ENV,	3907	$DB_ENV,
2576	$BDB_ENV_DIR,	3908	$BDBDIR,
2577	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3909	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2578	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3910	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2579	0666;	3911	0666;
2580		3912
2581	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3913	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2582
2583	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2584	$DB_ENV->set_lk_detect;
2585	};	3914	};
2586		3915
2587	cf::cleanup "db_env_open(db): $@" if $@;	3916	cf::cleanup "db_env_open(db): $@" if $@;
2588	};	3917	};
2589	}	3918	}
		3919
		3920	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3921	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3922	};
		3923	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3924	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3925	};
		3926	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3927	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3928	};
2590	}	3929	}
2591		3930
2592	{	3931	{
		3932	# configure IO::AIO
		3933
2593	IO::AIO::min_parallel 8;	3934	IO::AIO::min_parallel 8;
2594
2595	undef $Coro::AIO::WATCHER;
2596	IO::AIO::max_poll_time $TICK * 0.1;	3935	IO::AIO::max_poll_time $TICK * 0.1;
2597	$AIO_POLL_WATCHER = Event->io (	3936	undef $AnyEvent::AIO::WATCHER;
2598	reentrant => 0,
2599	data => WF_AUTOCANCEL,
2600	fd => IO::AIO::poll_fileno,
2601	poll => 'r',
2602	prio => 6,
2603	cb => \&IO::AIO::poll_cb,
2604	);
2605	}	3937	}
		3938
		3939	my $_log_backtrace;
		3940
		3941	sub _log_backtrace {
		3942	my ($msg, @addr) = @_;
		3943
		3944	$msg =~ s/\n//;
		3945
		3946	# limit the # of concurrent backtraces
		3947	if ($_log_backtrace < 2) {
		3948	++$_log_backtrace;
		3949	my $perl_bt = Carp::longmess $msg;
		3950	async {
		3951	$Coro::current->{desc} = "abt $msg";
		3952
		3953	my @bt = fork_call {
		3954	@addr = map { sprintf "%x", $_ } @addr;
		3955	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3956	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3957	or die "addr2line: $!";
		3958
		3959	my @funcs;
		3960	my @res = <$fh>;
		3961	chomp for @res;
		3962	while (@res) {
		3963	my ($func, $line) = splice @res, 0, 2, ();
		3964	push @funcs, "[$func] $line";
		3965	}
		3966
		3967	@funcs
		3968	};
		3969
		3970	LOG llevInfo, "[ABT] $perl_bt\n";
		3971	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3972	LOG llevInfo, "[ABT] $_\n" for @bt;
		3973	--$_log_backtrace;
		3974	};
		3975	} else {
		3976	LOG llevInfo, "[ABT] $msg\n";
		3977	LOG llevInfo, "[ABT] [suppressed]\n";
		3978	}
		3979	}
		3980
		3981	# load additional modules
		3982	require "cf/$_.pm" for @EXTRA_MODULES;
		3983	cf::_connect_to_perl_2;
2606		3984
2607	END { cf::emergency_save }	3985	END { cf::emergency_save }
2608		3986
2609	1	3987	1
2610		3988

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