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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.221 by pippijn, Fri Mar 2 13:32:52 2007 UTC vs.
Revision 1.490 by root, Sat Oct 24 06:16:40 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 $pl->quit_character
1026		1565
1027	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1028	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1029		1568
…		…
1033	my ($pl) = @_;	1572	my ($pl) = @_;
1034		1573
1035	my $name = $pl->ob->name;	1574	my $name = $pl->ob->name;
1036		1575
1037	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1038	$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
1039		1578
1040	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1041	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1042	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1043	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1044		1585
1045	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1046	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1076	while and may block, so not sync_job-capable, ever.	1617	while and may block, so not sync_job-capable, ever.
1077		1618
1078	=cut	1619	=cut
1079		1620
1080	sub list_logins {	1621	sub list_logins {
1081	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1622	my $dirs = aio_readdir $PLAYERDIR
1082	or return [];	1623	or return [];
1083		1624
1084	my @logins;	1625	my @logins;
1085		1626
1086	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") {
1087	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1088	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1089	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1090		1637
1091	utf8::decode $login;	1638	utf8::decode $login;
1092	push @logins, $login;	1639	push @logins, $login;
1093	}	1640	}
1094		1641
…		…
1121	}	1668	}
1122		1669
1123	\@paths	1670	\@paths
1124	}	1671	}
1125		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1126	=item $player->ext_reply ($msgid, $msgtype, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1127		1678
1128	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1129		1680
1130	=cut	1681	=cut
1131		1682
1132	sub ext_reply($$$%) {	1683	sub ext_reply($$@) {
1133	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1134		1685
1135	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1136
1137	$self->send ("ext " . cf::to_json \%msg);
1138	}	1687	}
1139		1688
1140	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	}
1141		1729
1142	=back	1730	=back
1143
1144		1731
1145	=head3 cf::map	1732	=head3 cf::map
1146		1733
1147	=over 4	1734	=over 4
1148		1735
…		…
1160	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1161	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1162		1749
1163	sub generate_random_map {	1750	sub generate_random_map {
1164	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
1165	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1166	$self->_create_random_map (	1756	$self->_create_random_map (
1167	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1168	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1169	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1203	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1204		1794
1205	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1206	local $self->{path};	1796	local $self->{path};
1207	local $self->{load_path};	1797	local $self->{load_path};
1208	local $self->{deny_save};
1209	local $self->{deny_reset};
1210		1798
1211	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1212	}	1800	}
1213		1801
1214	sub normalise {	1802	sub normalise {
…		…
1261	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1262	return $self;	1850	return $self;
1263	}	1851	}
1264	}	1852	}
1265		1853
1266	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1267	()	1855	()
1268	}	1856	}
1269		1857
1270	sub init {	1858	sub init {
1271	my ($self) = @_;	1859	my ($self) = @_;
…		…
1286		1874
1287	# the original (read-only) location	1875	# the original (read-only) location
1288	sub load_path {	1876	sub load_path {
1289	my ($self) = @_;	1877	my ($self) = @_;
1290		1878
1291	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1879	"$MAPDIR/$self->{path}.map"
1292	}	1880	}
1293		1881
1294	# the temporary/swap location	1882	# the temporary/swap location
1295	sub save_path {	1883	sub save_path {
1296	my ($self) = @_;	1884	my ($self) = @_;
1297		1885
1298	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1299	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1887	"$TMPDIR/$path.map"
1300	}	1888	}
1301		1889
1302	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1303	sub uniq_path {	1891	sub uniq_path {
1304	my ($self) = @_;	1892	my ($self) = @_;
1305		1893
1306	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1307	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1895	"$UNIQUEDIR/$path"
1308	}	1896	}
1309		1897
1310	# and all this just because we cannot iterate over	1898	sub decay_objects {
1311	# all maps in C++...
1312	sub change_all_map_light {
1313	my ($change) = @_;	1899	my ($self) = @_;
1314		1900
1315	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1316	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1317	}	1904	}
1318		1905
1319	sub unlink_save {	1906	sub unlink_save {
1320	my ($self) = @_;	1907	my ($self) = @_;
1321		1908
…		…
1326		1913
1327	sub load_header_from($) {	1914	sub load_header_from($) {
1328	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1329		1916
1330	utf8::encode $path;	1917	utf8::encode $path;
1331	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1332	# or return;
1333
1334	$self->_load_header ($path)
1335	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;
1336		1926
1337	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1338		1928
1339	1	1929	1
1340	}	1930	}
…		…
1379	$self->load_header_orig	1969	$self->load_header_orig
1380	or return;	1970	or return;
1381	$self->prepare_orig;	1971	$self->prepare_orig;
1382	}	1972	}
1383		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
1384	1	1980	1
1385	}	1981	}
1386		1982
1387	sub find;	1983	sub find;
1388	sub find {	1984	sub find {
1389	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1390		1986
1391	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1392		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1393	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1394		1991
1395	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1396	my $guard = cf::lock_acquire "map_find:$path";
1397	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1398	or return;	1994	or return;
1399		1995
1400	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1401		1997
1402	$map->load_header	1998	$map->load_header
1403	or return;	1999	or return;
1404		2000
1405	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1406	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1407	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1408	$map->reset;	2006	$map->reset;
1409	undef $guard;
1410	return find $path;	2007	return find $path;
1411	}	2008	}
1412		2009
1413	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1414	}	2011	}
…		…
1421	my ($self) = @_;	2018	my ($self) = @_;
1422		2019
1423	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1424		2021
1425	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1426	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1427		2026
		2027	return unless $self->valid;
1428	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1429		2029
1430	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1431		2031
1432	$self->alloc;	2032	$self->alloc;
1433		2033
1434	$self->pre_load;	2034	$self->pre_load;
		2035	cf::cede_to_tick;
1435		2036
1436	$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)
1437	or return;	2040	or return;
1438		2041
1439	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1440	if delete $self->{load_original};	2043	if delete $self->{load_original};
1441		2044
1442	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1443	utf8::encode $uniq;	2046	utf8::encode $uniq;
1444	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1445	$self->clear_unique_items;	2049	$self->clear_unique_items;
1446	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1447	}	2053	}
1448	}	2054	}
1449		2055
1450	Coro::cede;	2056	$f->resolve_delayed_derefs;
1451		2057
		2058	cf::cede_to_tick;
1452	# now do the right thing for maps	2059	# now do the right thing for maps
1453	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1454
1455	unless ($self->{deny_activate}) {
1456	$self->decay_objects;
1457	$self->fix_auto_apply;
1458	$self->update_buttons;
1459	Coro::cede;
1460	$self->set_darkness_map;
1461	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1462	unless $self->difficulty;	2062	unless $self->difficulty;
1463	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;
1464	$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);
1465	}	2077	}
1466		2078
1467	$self->post_load;	2079	$self->post_load;
1468
1469	$self->in_memory (cf::MAP_IN_MEMORY);
1470	}	2080	}
1471		2081
1472	sub customise_for {	2082	sub customise_for {
1473	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1474		2084
1475	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1476	if $self->per_player;	2086	if $self->per_player;
1477		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1478	$self	2091	$self
1479	}	2092	}
1480		2093
1481	# 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
1482	sub load_diag {	2095	sub load_neighbours {
1483	my ($map) = @_;	2096	my ($map) = @_;
1484		2097
1485	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1486		2099
1487	for (0 .. 3) {	2100	for (0 .. 3) {
1488	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1489	or next;	2102	or next;
1490	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1491	or next;	2104	or next;
1492	$neigh->load;	2105	$neigh->load;
1493		2106
		2107	push @neigh,
1494	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1495	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1496	}	2110	}
1497		2111
1498	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1499	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1500	or next;	2115	or next;
1501	$neigh->load;	2116	$neigh->load;
1502	}	2117	}
1503	}	2118	}
1504		2119
…		…
1509	}	2124	}
1510		2125
1511	sub do_load_sync {	2126	sub do_load_sync {
1512	my ($map) = @_;	2127	my ($map) = @_;
1513		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1514	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1515	}	2133	}
1516		2134
1517	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1518	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1519		2137
1520	sub find_async {	2138	sub find_async {
1521	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1522		2140
1523	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1524		2142
1525	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1526	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1527	}	2145	}
1528		2146
1529	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1530	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1531	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1532	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1533	my $map = find $path	2154	if (my $map = find $k) {
1534	or next;
1535	$map->load;	2155	$map->load if $v;
		2156	}
1536		2157
1537	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1538	}	2159	}
1539	}	2160	}
1540	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1541	};	2162	};
1542	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1545	}	2166	}
1546		2167
1547	sub save {	2168	sub save {
1548	my ($self) = @_;	2169	my ($self) = @_;
1549		2170
1550	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1551		2172
1552	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1553		2174
1554	return unless $self->dirty;	2175	return unless $self->dirty;
1555		2176
…		…
1561	return if $self->{deny_save};	2182	return if $self->{deny_save};
1562		2183
1563	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1564		2185
1565	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1566	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1567	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1568		2192
1569	if ($uniq) {	2193	if ($uniq) {
1570	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1571	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1572	} else {	2196	} else {
…		…
1578	my ($self) = @_;	2202	my ($self) = @_;
1579		2203
1580	# save first because save cedes	2204	# save first because save cedes
1581	$self->save;	2205	$self->save;
1582		2206
1583	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1584		2208
1585	return if $self->players;	2209	return if $self->players;
1586	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1587	return if $self->{deny_save};	2211	return if $self->{deny_save};
1588		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1589	$self->clear;	2217	$self->clear;
1590	$self->in_memory (cf::MAP_SWAPPED);
1591	}	2218	}
1592		2219
1593	sub reset_at {	2220	sub reset_at {
1594	my ($self) = @_;	2221	my ($self) = @_;
1595		2222
1596	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1597	return 1e99 if $self->isa ("ext::map_per_player");#d#
1598	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1599		2225
1600	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1601	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;
1602		2228
…		…
1613	my ($self) = @_;	2239	my ($self) = @_;
1614		2240
1615	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1616		2242
1617	return if $self->players;	2243	return if $self->players;
1618	return if $self->isa ("ext::map_per_player");#d#
1619		2244
1620	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
1621		2246
1622	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->in_memory (cf::MAP_SWAPPED);
1623		2248
1624	# need to save uniques path	2249	# need to save uniques path
1625	unless ($self->{deny_save}) {	2250	unless ($self->{deny_save}) {
…		…
1629	if $uniq;	2254	if $uniq;
1630	}	2255	}
1631		2256
1632	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1633		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1634	$self->clear;	2261	$self->clear;
1635
1636	$_->clear_links_to ($self) for values %cf::MAP;
1637		2262
1638	$self->unlink_save;	2263	$self->unlink_save;
1639	$self->destroy;	2264	$self->destroy;
1640	}	2265	}
1641		2266
1642	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1643		2268
1644	sub nuke {	2269	sub nuke {
1645	my ($self) = @_;	2270	my ($self) = @_;
1646		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1647	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1648		2276
1649	$self->unlink_save;	2277	$self->unlink_save;
1650		2278
1651	bless $self, "cf::map";	2279	bless $self, "cf::map";
1652	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1653	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1654	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1655	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1656		2284
1657	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1658		2287
1659	$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	]
1660	}	2325	}
1661		2326
1662	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1663		2328
1664	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1665	instantiated unique items. May block.	2330	instantiated unique items. May block.
1666		2331
1667	=cut	2332	=cut
1668		2333
1669	sub unique_maps() {	2334	sub unique_maps() {
1670	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2335	[
1671	or return;	2336	map {
1672
1673	my @paths;
1674
1675	for (@$files) {
1676	utf8::decode $_;	2337	utf8::decode $_;
1677	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1678	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1679		2340	? ()
1680	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1681	}	2343	]
1682
1683	\@paths
1684	}	2344	}
1685		2345
1686	package cf;	2346	=item cf::map::static_maps
		2347
		2348	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2349	file in the shared directory excluding F</styles>). May block.
		2350
		2351	=cut
		2352
		2353	sub static_maps() {
		2354	my @dirs = "";
		2355	my @maps;
		2356
		2357	while (@dirs) {
		2358	my $dir = shift @dirs;
		2359
		2360	next if $dir eq "/styles";
		2361
		2362	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2363	or return;
		2364
		2365	for (@$files) {
		2366	s/\.map$// or next;
		2367	utf8::decode $_;
		2368	push @maps, "$dir/$_";
		2369	}
		2370
		2371	push @dirs, map "$dir/$_", @$dirs;
		2372	}
		2373
		2374	\@maps
		2375	}
1687		2376
1688	=back	2377	=back
1689		2378
1690	=head3 cf::object	2379	=head3 cf::object
1691		2380
…		…
1695		2384
1696	=over 4	2385	=over 4
1697		2386
1698	=item $ob->inv_recursive	2387	=item $ob->inv_recursive
1699		2388
1700	Returns the inventory of the object _and_ their inventories, recursively.	2389	Returns the inventory of the object I<and> their inventories, recursively,
		2390	but I<not> the object itself.
1701		2391
1702	=cut	2392	=cut
1703		2393
1704	sub inv_recursive_;	2394	sub inv_recursive_;
1705	sub inv_recursive_ {	2395	sub inv_recursive_ {
…		…
1708		2398
1709	sub inv_recursive {	2399	sub inv_recursive {
1710	inv_recursive_ inv $_[0]	2400	inv_recursive_ inv $_[0]
1711	}	2401	}
1712		2402
		2403	=item $ref = $ob->ref
		2404
		2405	Creates and returns a persistent reference to an object that can be stored as a string.
		2406
		2407	=item $ob = cf::object::deref ($refstring)
		2408
		2409	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2410	even if the object actually exists. May block.
		2411
		2412	=cut
		2413
		2414	sub deref {
		2415	my ($ref) = @_;
		2416
		2417	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2418	my ($uuid, $name) = ($1, $2);
		2419	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2420	or return;
		2421	$pl->ob->uuid eq $uuid
		2422	or return;
		2423
		2424	$pl->ob
		2425	} else {
		2426	warn "$ref: cannot resolve object reference\n";
		2427	undef
		2428	}
		2429	}
		2430
1713	package cf;	2431	package cf;
1714		2432
1715	=back	2433	=back
1716		2434
1717	=head3 cf::object::player	2435	=head3 cf::object::player
…		…
1723	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2441	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1724	can be C<undef>. Does the right thing when the player is currently in a	2442	can be C<undef>. Does the right thing when the player is currently in a
1725	dialogue with the given NPC character.	2443	dialogue with the given NPC character.
1726		2444
1727	=cut	2445	=cut
		2446
		2447	our $SAY_CHANNEL = {
		2448	id => "say",
		2449	title => "Map",
		2450	reply => "say ",
		2451	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2452	};
		2453
		2454	our $CHAT_CHANNEL = {
		2455	id => "chat",
		2456	title => "Chat",
		2457	reply => "chat ",
		2458	tooltip => "Player chat and shouts, global to the server.",
		2459	};
1728		2460
1729	# rough implementation of a future "reply" method that works	2461	# rough implementation of a future "reply" method that works
1730	# with dialog boxes.	2462	# with dialog boxes.
1731	#TODO: the first argument must go, split into a $npc->reply_to ( method	2463	#TODO: the first argument must go, split into a $npc->reply_to ( method
1732	sub cf::object::player::reply($$$;$) {	2464	sub cf::object::player::reply($$$;$) {
…		…
1734		2466
1735	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2467	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1736		2468
1737	if ($self->{record_replies}) {	2469	if ($self->{record_replies}) {
1738	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2470	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2471
1739	} else {	2472	} else {
		2473	my $pl = $self->contr;
		2474
		2475	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2476	my $dialog = $pl->{npc_dialog};
		2477	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2478
		2479	} else {
1740	$msg = $npc->name . " says: $msg" if $npc;	2480	$msg = $npc->name . " says: $msg" if $npc;
1741	$self->message ($msg, $flags);	2481	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2482	}
1742	}	2483	}
		2484	}
		2485
		2486	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2487
		2488	=cut
		2489
		2490	sub cf::object::send_msg {
		2491	my $pl = shift->contr
		2492	or return;
		2493	$pl->send_msg (@_);
1743	}	2494	}
1744		2495
1745	=item $player_object->may ("access")	2496	=item $player_object->may ("access")
1746		2497
1747	Returns wether the given player is authorized to access resource "access"	2498	Returns wether the given player is authorized to access resource "access"
…		…
1760		2511
1761	=item $player_object->enter_link	2512	=item $player_object->enter_link
1762		2513
1763	Freezes the player and moves him/her to a special map (C<{link}>).	2514	Freezes the player and moves him/her to a special map (C<{link}>).
1764		2515
1765	The player should be reasonably safe there for short amounts of time. You	2516	The player should be reasonably safe there for short amounts of time (e.g.
1766	I<MUST> call C<leave_link> as soon as possible, though.	2517	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2518	though, as the palyer cannot control the character while it is on the link
		2519	map.
1767		2520
1768	Will never block.	2521	Will never block.
1769		2522
1770	=item $player_object->leave_link ($map, $x, $y)	2523	=item $player_object->leave_link ($map, $x, $y)
1771		2524
…		…
1794	$self->deactivate_recursive;	2547	$self->deactivate_recursive;
1795		2548
1796	return if UNIVERSAL::isa $self->map, "ext::map_link";	2549	return if UNIVERSAL::isa $self->map, "ext::map_link";
1797		2550
1798	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2551	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1799	if $self->map;	2552	if $self->map && $self->map->{path} ne "{link}";
1800		2553
1801	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2554	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1802	}	2555	}
1803		2556
1804	sub cf::object::player::leave_link {	2557	sub cf::object::player::leave_link {
1805	my ($self, $map, $x, $y) = @_;	2558	my ($self, $map, $x, $y) = @_;
		2559
		2560	return unless $self->contr->active;
1806		2561
1807	my $link_pos = delete $self->{_link_pos};	2562	my $link_pos = delete $self->{_link_pos};
1808		2563
1809	unless ($map) {	2564	unless ($map) {
1810	# restore original map position	2565	# restore original map position
…		…
1824	# use -1 or undef as default coordinates, not 0, 0	2579	# use -1 or undef as default coordinates, not 0, 0
1825	($x, $y) = ($map->enter_x, $map->enter_y)	2580	($x, $y) = ($map->enter_x, $map->enter_y)
1826	if $x <=0 && $y <= 0;	2581	if $x <=0 && $y <= 0;
1827		2582
1828	$map->load;	2583	$map->load;
1829	$map->load_diag;	2584	$map->load_neighbours;
1830		2585
1831	return unless $self->contr->active;	2586	return unless $self->contr->active;
1832	$self->activate_recursive;
1833		2587
1834	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2588	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1835	$self->enter_map ($map, $x, $y);	2589	$self->enter_map ($map, $x, $y);
1836	}
1837		2590
1838	cf::player->attach (	2591	# only activate afterwards, to support waiting in hooks
1839	on_logout => sub {	2592	$self->activate_recursive;
1840	my ($pl) = @_;	2593	}
1841		2594
1842	# abort map switching before logout	2595	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1843	if ($pl->ob->{_link_pos}) {
1844	cf::sync_job {
1845	$pl->ob->leave_link
1846	};
1847	}
1848	},
1849	on_login => sub {
1850	my ($pl) = @_;
1851		2596
1852	# try to abort aborted map switching on player login :)	2597	Moves the player to the given map-path and coordinates by first freezing
1853	# should happen only on crashes	2598	her, loading and preparing them map, calling the provided $check callback
1854	if ($pl->ob->{_link_pos}) {	2599	that has to return the map if sucecssful, and then unfreezes the player on
1855	$pl->ob->enter_link;	2600	the new (success) or old (failed) map position. In either case, $done will
1856	(async {	2601	be called at the end of this process.
1857	$pl->ob->reply (undef,
1858	"There was an internal problem at your last logout, "
1859	. "the server will try to bring you to your intended destination in a second.",
1860	cf::NDI_RED);
1861	# we need this sleep as the login has a concurrent enter_exit running
1862	# and this sleep increases chances of the player not ending up in scorn
1863	Coro::Timer::sleep 1;
1864	$pl->ob->leave_link;
1865	})->prio (2);
1866	}
1867	},
1868	);
1869		2602
1870	=item $player_object->goto ($path, $x, $y)	2603	Note that $check will be called with a potentially non-loaded map, so if
		2604	it needs a loaded map it has to call C<< ->load >>.
1871		2605
1872	=cut	2606	=cut
		2607
		2608	our $GOTOGEN;
1873		2609
1874	sub cf::object::player::goto {	2610	sub cf::object::player::goto {
1875	my ($self, $path, $x, $y) = @_;	2611	my ($self, $path, $x, $y, $check, $done) = @_;
		2612
		2613	# do generation counting so two concurrent goto's will be executed in-order
		2614	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1876		2615
1877	$self->enter_link;	2616	$self->enter_link;
1878		2617
1879	(async {	2618	(async {
		2619	$Coro::current->{desc} = "player::goto $path $x $y";
		2620
		2621	# *tag paths override both path and x|y
		2622	if ($path =~ /^\*(.*)$/) {
		2623	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2624	my $ob = $obs[rand @obs];
		2625
		2626	# see if we actually can go there
		2627	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2628	$ob = $obs[rand @obs];
		2629	} else {
		2630	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2631	}
		2632	# else put us there anyways for now #d#
		2633
		2634	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2635	} else {
		2636	($path, $x, $y) = (undef, undef, undef);
		2637	}
		2638	}
		2639
1880	my $map = eval {	2640	my $map = eval {
1881	my $map = cf::map::find $path;	2641	my $map = defined $path ? cf::map::find $path : undef;
		2642
		2643	if ($map) {
1882	$map = $map->customise_for ($self) if $map;	2644	$map = $map->customise_for ($self);
		2645	$map = $check->($map) if $check && $map;
		2646	} else {
		2647	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2648	}
		2649
1883	$map	2650	$map
		2651	};
		2652
		2653	if ($@) {
		2654	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2655	LOG llevError | logBacktrace, Carp::longmess $@;
1884	} or	2656	}
1885	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1886		2657
		2658	if ($gen == $self->{_goto_generation}) {
		2659	delete $self->{_goto_generation};
1887	$self->leave_link ($map, $x, $y);	2660	$self->leave_link ($map, $x, $y);
		2661	}
		2662
		2663	$done->() if $done;
1888	})->prio (1);	2664	})->prio (1);
1889	}	2665	}
1890		2666
1891	=item $player_object->enter_exit ($exit_object)	2667	=item $player_object->enter_exit ($exit_object)
1892		2668
…		…
1912	}	2688	}
1913		2689
1914	sub prepare_random_map {	2690	sub prepare_random_map {
1915	my ($exit) = @_;	2691	my ($exit) = @_;
1916		2692
1917	my $guard = cf::lock_acquire "exit_prepare:$exit";
1918
1919	# all this does is basically replace the /! path by	2693	# all this does is basically replace the /! path by
1920	# a new random map path (?random/...) with a seed	2694	# a new random map path (?random/...) with a seed
1921	# that depends on the exit object	2695	# that depends on the exit object
1922		2696
1923	my $rmp = parse_random_map_params $exit->msg;	2697	my $rmp = parse_random_map_params $exit->msg;
…		…
1925	if ($exit->map) {	2699	if ($exit->map) {
1926	$rmp->{region} = $exit->region->name;	2700	$rmp->{region} = $exit->region->name;
1927	$rmp->{origin_map} = $exit->map->path;	2701	$rmp->{origin_map} = $exit->map->path;
1928	$rmp->{origin_x} = $exit->x;	2702	$rmp->{origin_x} = $exit->x;
1929	$rmp->{origin_y} = $exit->y;	2703	$rmp->{origin_y} = $exit->y;
		2704
		2705	$exit->map->touch;
1930	}	2706	}
1931		2707
1932	$rmp->{random_seed} ||= $exit->random_seed;	2708	$rmp->{random_seed} ||= $exit->random_seed;
1933		2709
1934	my $data = cf::to_json $rmp;	2710	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1935	my $md5 = Digest::MD5::md5_hex $data;	2711	my $md5 = Digest::MD5::md5_hex $data;
1936	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2712	my $meta = "$RANDOMDIR/$md5.meta";
1937		2713
1938	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2714	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1939	aio_write $fh, 0, (length $data), $data, 0;	2715	aio_write $fh, 0, (length $data), $data, 0;
1940	undef $fh;	2716	undef $fh;
1941	aio_rename "$meta~", $meta;	2717	aio_rename "$meta~", $meta;
1942		2718
		2719	my $slaying = "?random/$md5";
		2720
		2721	if ($exit->valid) {
1943	$exit->slaying ("?random/$md5");	2722	$exit->slaying ("?random/$md5");
1944	$exit->msg (undef);	2723	$exit->msg (undef);
		2724	}
1945	}	2725	}
1946	}	2726	}
1947		2727
1948	sub cf::object::player::enter_exit {	2728	sub cf::object::player::enter_exit {
1949	my ($self, $exit) = @_;	2729	my ($self, $exit) = @_;
1950		2730
1951	return unless $self->type == cf::PLAYER;	2731	return unless $self->type == cf::PLAYER;
1952		2732
1953	if ($exit->slaying eq "/!") {
1954	#TODO: this should de-fi-ni-te-ly not be a sync-job
1955	cf::sync_job { prepare_random_map $exit };
1956	}
1957
1958	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1959	my $hp = $exit->stats->hp;
1960	my $sp = $exit->stats->sp;
1961
1962	$self->enter_link;	2733	$self->enter_link;
1963		2734
1964	(async {	2735	(async {
1965	$self->deactivate_recursive; # just to be sure	2736	$Coro::current->{desc} = "enter_exit";
		2737
1966	unless (eval {	2738	unless (eval {
		2739	$self->deactivate_recursive; # just to be sure
		2740
		2741	# random map handling
		2742	{
		2743	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2744
		2745	prepare_random_map $exit
		2746	if $exit->slaying eq "/!";
		2747	}
		2748
		2749	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2750	my $x = $exit->stats->hp;
		2751	my $y = $exit->stats->sp;
		2752
1967	$self->goto ($slaying, $hp, $sp);	2753	$self->goto ($map, $x, $y);
1968		2754
		2755	# if exit is damned, update players death & WoR home-position
		2756	$self->contr->savebed ($map, $x, $y)
		2757	if $exit->flag (cf::FLAG_DAMNED);
		2758
1969	1;	2759	1
1970	}) {	2760	}) {
1971	$self->message ("Something went wrong deep within the crossfire server. "	2761	$self->message ("Something went wrong deep within the deliantra server. "
1972	. "I'll try to bring you back to the map you were before. "	2762	. "I'll try to bring you back to the map you were before. "
1973	. "Please report this to the dungeon master!",	2763	. "Please report this to the dungeon master!",
1974	cf::NDI_UNIQUE | cf::NDI_RED);	2764	cf::NDI_UNIQUE | cf::NDI_RED);
1975		2765
1976	warn "ERROR in enter_exit: $@";	2766	warn "ERROR in enter_exit: $@";
1977	$self->leave_link;	2767	$self->leave_link;
1978	}	2768	}
1979	})->prio (1);	2769	})->prio (1);
…		…
1992		2782
1993	sub cf::client::send_drawinfo {	2783	sub cf::client::send_drawinfo {
1994	my ($self, $text, $flags) = @_;	2784	my ($self, $text, $flags) = @_;
1995		2785
1996	utf8::encode $text;	2786	utf8::encode $text;
1997	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2787	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1998	}	2788	}
1999		2789
		2790	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2791
		2792	Send a drawinfo or msg packet to the client, formatting the msg for the
		2793	client if neccessary. C<$type> should be a string identifying the type of
		2794	the message, with C<log> being the default. If C<$color> is negative, suppress
		2795	the message unless the client supports the msg packet.
		2796
		2797	=cut
		2798
		2799	# non-persistent channels (usually the info channel)
		2800	our %CHANNEL = (
		2801	"c/motd" => {
		2802	id => "infobox",
		2803	title => "MOTD",
		2804	reply => undef,
		2805	tooltip => "The message of the day",
		2806	},
		2807	"c/identify" => {
		2808	id => "infobox",
		2809	title => "Identify",
		2810	reply => undef,
		2811	tooltip => "Items recently identified",
		2812	},
		2813	"c/examine" => {
		2814	id => "infobox",
		2815	title => "Examine",
		2816	reply => undef,
		2817	tooltip => "Signs and other items you examined",
		2818	},
		2819	"c/shopinfo" => {
		2820	id => "infobox",
		2821	title => "Shop Info",
		2822	reply => undef,
		2823	tooltip => "What your bargaining skill tells you about the shop",
		2824	},
		2825	"c/book" => {
		2826	id => "infobox",
		2827	title => "Book",
		2828	reply => undef,
		2829	tooltip => "The contents of a note or book",
		2830	},
		2831	"c/lookat" => {
		2832	id => "infobox",
		2833	title => "Look",
		2834	reply => undef,
		2835	tooltip => "What you saw there",
		2836	},
		2837	"c/who" => {
		2838	id => "infobox",
		2839	title => "Players",
		2840	reply => undef,
		2841	tooltip => "Shows players who are currently online",
		2842	},
		2843	"c/body" => {
		2844	id => "infobox",
		2845	title => "Body Parts",
		2846	reply => undef,
		2847	tooltip => "Shows which body parts you posess and are available",
		2848	},
		2849	"c/statistics" => {
		2850	id => "infobox",
		2851	title => "Statistics",
		2852	reply => undef,
		2853	tooltip => "Shows your primary statistics",
		2854	},
		2855	"c/skills" => {
		2856	id => "infobox",
		2857	title => "Skills",
		2858	reply => undef,
		2859	tooltip => "Shows your experience per skill and item power",
		2860	},
		2861	"c/shopitems" => {
		2862	id => "infobox",
		2863	title => "Shop Items",
		2864	reply => undef,
		2865	tooltip => "Shows the items currently for sale in this shop",
		2866	},
		2867	"c/resistances" => {
		2868	id => "infobox",
		2869	title => "Resistances",
		2870	reply => undef,
		2871	tooltip => "Shows your resistances",
		2872	},
		2873	"c/pets" => {
		2874	id => "infobox",
		2875	title => "Pets",
		2876	reply => undef,
		2877	tooltip => "Shows information abotu your pets/a specific pet",
		2878	},
		2879	"c/perceiveself" => {
		2880	id => "infobox",
		2881	title => "Perceive Self",
		2882	reply => undef,
		2883	tooltip => "You gained detailed knowledge about yourself",
		2884	},
		2885	"c/uptime" => {
		2886	id => "infobox",
		2887	title => "Uptime",
		2888	reply => undef,
		2889	tooltip => "How long the server has been running since last restart",
		2890	},
		2891	"c/mapinfo" => {
		2892	id => "infobox",
		2893	title => "Map Info",
		2894	reply => undef,
		2895	tooltip => "Information related to the maps",
		2896	},
		2897	"c/party" => {
		2898	id => "party",
		2899	title => "Party",
		2900	reply => "gsay ",
		2901	tooltip => "Messages and chat related to your party",
		2902	},
		2903	"c/death" => {
		2904	id => "death",
		2905	title => "Death",
		2906	reply => undef,
		2907	tooltip => "Reason for and more info about your most recent death",
		2908	},
		2909	"c/say" => $SAY_CHANNEL,
		2910	"c/chat" => $CHAT_CHANNEL,
		2911	);
		2912
		2913	sub cf::client::send_msg {
		2914	my ($self, $channel, $msg, $color, @extra) = @_;
		2915
		2916	$msg = $self->pl->expand_cfpod ($msg)
		2917	unless $color & cf::NDI_VERBATIM;
		2918
		2919	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2920
		2921	# check predefined channels, for the benefit of C
		2922	if ($CHANNEL{$channel}) {
		2923	$channel = $CHANNEL{$channel};
		2924
		2925	$self->ext_msg (channel_info => $channel);
		2926	$channel = $channel->{id};
		2927
		2928	} elsif (ref $channel) {
		2929	# send meta info to client, if not yet sent
		2930	unless (exists $self->{channel}{$channel->{id}}) {
		2931	$self->{channel}{$channel->{id}} = $channel;
		2932	$self->ext_msg (channel_info => $channel);
		2933	}
		2934
		2935	$channel = $channel->{id};
		2936	}
		2937
		2938	return unless @extra || length $msg;
		2939
		2940	# default colour, mask it out
		2941	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2942	if $color & cf::NDI_DEF;
		2943
		2944	my $pkt = "msg "
		2945	. $self->{json_coder}->encode (
		2946	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2947	);
		2948
		2949	# try lzf for large packets
		2950	$pkt = "lzf " . Compress::LZF::compress $pkt
		2951	if 1024 <= length $pkt and $self->{can_lzf};
		2952
		2953	# split very large packets
		2954	if (8192 < length $pkt and $self->{can_lzf}) {
		2955	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2956	$pkt = "frag";
		2957	}
		2958
		2959	$self->send_packet ($pkt);
		2960	}
		2961
		2962	=item $client->ext_msg ($type, @msg)
		2963
		2964	Sends an ext event to the client.
		2965
		2966	=cut
		2967
		2968	sub cf::client::ext_msg($$@) {
		2969	my ($self, $type, @msg) = @_;
		2970
		2971	if ($self->extcmd == 2) {
		2972	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2973	} elsif ($self->extcmd == 1) { # TODO: remove
		2974	push @msg, msgtype => "event_$type";
		2975	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2976	}
		2977	}
		2978
		2979	=item $client->ext_reply ($msgid, @msg)
		2980
		2981	Sends an ext reply to the client.
		2982
		2983	=cut
		2984
		2985	sub cf::client::ext_reply($$@) {
		2986	my ($self, $id, @msg) = @_;
		2987
		2988	if ($self->extcmd == 2) {
		2989	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2990	} elsif ($self->extcmd == 1) {
		2991	#TODO: version 1, remove
		2992	unshift @msg, msgtype => "reply", msgid => $id;
		2993	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2994	}
		2995	}
2000		2996
2001	=item $success = $client->query ($flags, "text", \&cb)	2997	=item $success = $client->query ($flags, "text", \&cb)
2002		2998
2003	Queues a query to the client, calling the given callback with	2999	Queues a query to the client, calling the given callback with
2004	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3000	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2005	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3001	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2006		3002
2007	Queries can fail, so check the return code. Or don't, as queries will become	3003	Queries can fail, so check the return code. Or don't, as queries will
2008	reliable at some point in the future.	3004	become reliable at some point in the future.
2009		3005
2010	=cut	3006	=cut
2011		3007
2012	sub cf::client::query {	3008	sub cf::client::query {
2013	my ($self, $flags, $text, $cb) = @_;	3009	my ($self, $flags, $text, $cb) = @_;
…		…
2021	utf8::encode $text;	3017	utf8::encode $text;
2022	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3018	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2023		3019
2024	$self->send_packet ($self->{query_queue}[0][0])	3020	$self->send_packet ($self->{query_queue}[0][0])
2025	if @{ $self->{query_queue} } == 1;	3021	if @{ $self->{query_queue} } == 1;
		3022
		3023	1
2026	}	3024	}
2027		3025
2028	cf::client->attach (	3026	cf::client->attach (
		3027	on_connect => sub {
		3028	my ($ns) = @_;
		3029
		3030	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3031	},
2029	on_reply => sub {	3032	on_reply => sub {
2030	my ($ns, $msg) = @_;	3033	my ($ns, $msg) = @_;
2031		3034
2032	# this weird shuffling is so that direct followup queries	3035	# this weird shuffling is so that direct followup queries
2033	# get handled first	3036	# get handled first
…		…
2045	} else {	3048	} else {
2046	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3049	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2047	}	3050	}
2048	}	3051	}
2049	},	3052	},
		3053	on_exticmd => sub {
		3054	my ($ns, $buf) = @_;
		3055
		3056	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3057
		3058	if (ref $msg) {
		3059	my ($type, $reply, @payload) =
		3060	"ARRAY" eq ref $msg
		3061	? @$msg
		3062	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3063
		3064	my @reply;
		3065
		3066	if (my $cb = $EXTICMD{$type}) {
		3067	@reply = $cb->($ns, @payload);
		3068	}
		3069
		3070	$ns->ext_reply ($reply, @reply)
		3071	if $reply;
		3072
		3073	} else {
		3074	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3075	}
		3076
		3077	cf::override;
		3078	},
2050	);	3079	);
2051		3080
2052	=item $client->async (\&cb)	3081	=item $client->async (\&cb)
2053		3082
2054	Create a new coroutine, running the specified callback. The coroutine will	3083	Create a new coroutine, running the specified callback. The coroutine will
…		…
2095	our $safe = new Safe "safe";	3124	our $safe = new Safe "safe";
2096	our $safe_hole = new Safe::Hole;	3125	our $safe_hole = new Safe::Hole;
2097		3126
2098	$SIG{FPE} = 'IGNORE';	3127	$SIG{FPE} = 'IGNORE';
2099		3128
2100	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3129	$safe->permit_only (Opcode::opset qw(
		3130	:base_core :base_mem :base_orig :base_math
		3131	grepstart grepwhile mapstart mapwhile
		3132	sort time
		3133	));
2101		3134
2102	# here we export the classes and methods available to script code	3135	# here we export the classes and methods available to script code
2103		3136
2104	=pod	3137	=pod
2105		3138
2106	The following fucntions and emthods are available within a safe environment:	3139	The following functions and methods are available within a safe environment:
2107		3140
2108	cf::object contr pay_amount pay_player map	3141	cf::object
		3142	contr pay_amount pay_player map x y force_find force_add destroy
		3143	insert remove name archname title slaying race decrease split
		3144	value
		3145
2109	cf::object::player player	3146	cf::object::player
2110	cf::player peaceful	3147	player
2111	cf::map trigger	3148
		3149	cf::player
		3150	peaceful
		3151
		3152	cf::map
		3153	trigger
2112		3154
2113	=cut	3155	=cut
2114		3156
2115	for (	3157	for (
2116	["cf::object" => qw(contr pay_amount pay_player map)],	3158	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3159	insert remove inv nrof name archname title slaying race
		3160	decrease split destroy change_exp value msg lore send_msg)],
2117	["cf::object::player" => qw(player)],	3161	["cf::object::player" => qw(player)],
2118	["cf::player" => qw(peaceful)],	3162	["cf::player" => qw(peaceful send_msg)],
2119	["cf::map" => qw(trigger)],	3163	["cf::map" => qw(trigger)],
2120	) {	3164	) {
2121	no strict 'refs';	3165	no strict 'refs';
2122	my ($pkg, @funs) = @$_;	3166	my ($pkg, @funs) = @$_;
2123	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3167	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2140	my ($code, %vars) = @_;	3184	my ($code, %vars) = @_;
2141		3185
2142	my $qcode = $code;	3186	my $qcode = $code;
2143	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3187	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2144	$qcode =~ s/\n/\\n/g;	3188	$qcode =~ s/\n/\\n/g;
		3189
		3190	%vars = (_dummy => 0) unless %vars;
2145		3191
2146	local $_;	3192	local $_;
2147	local @safe::cf::_safe_eval_args = values %vars;	3193	local @safe::cf::_safe_eval_args = values %vars;
2148		3194
2149	my $eval =	3195	my $eval =
…		…
2192	=back	3238	=back
2193		3239
2194	=cut	3240	=cut
2195		3241
2196	#############################################################################	3242	#############################################################################
2197
2198	=head2 EXTENSION DATABASE SUPPORT
2199
2200	Crossfire maintains a very simple database for extension use. It can
2201	currently store anything that can be serialised using Storable, which
2202	excludes objects.
2203
2204	The parameter C<$family> should best start with the name of the extension
2205	using it, it should be unique.
2206
2207	=over 4
2208
2209	=item $value = cf::db_get $family => $key
2210
2211	Returns a single value from the database.
2212
2213	=item cf::db_put $family => $key => $value
2214
2215	Stores the given C<$value> in the family.
2216
2217	=cut
2218
2219	our $DB;
2220
2221	sub db_init {
2222	unless ($DB) {
2223	$DB = BDB::db_create $DB_ENV;
2224
2225	cf::sync_job {
2226	eval {
2227	$DB->set_flags (BDB::CHKSUM);
2228
2229	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2230	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2231	cf::cleanup "db_open(db): $!" if $!;
2232	};
2233	cf::cleanup "db_open(db): $@" if $@;
2234	};
2235
2236	my $path = cf::localdir . "/database.pst";
2237	if (stat $path) {
2238	cf::sync_job {
2239	my $pst = Storable::retrieve $path;
2240
2241	cf::db_put (board => data => $pst->{board});
2242	cf::db_put (guildrules => data => $pst->{guildrules});
2243	cf::db_put (rent => balance => $pst->{rent}{balance});
2244	BDB::db_env_txn_checkpoint $DB_ENV;
2245
2246	unlink $path;
2247	};
2248	}
2249	}
2250	}
2251
2252	sub db_get($$) {
2253	my $key = "$_[0]/$_[1]";
2254
2255	cf::sync_job {
2256	BDB::db_get $DB, undef, $key, my $data;
2257
2258	$! ? ()
2259	: Compress::LZF::sthaw $data
2260	}
2261	}
2262
2263	sub db_put($$$) {
2264	BDB::dbreq_pri 4;
2265	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2266	}
2267
2268	#############################################################################
2269	# the server's init and main functions	3243	# the server's init and main functions
2270		3244
2271	sub init_resources {	3245	sub load_facedata($) {
2272	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3246	my ($path) = @_;
		3247
		3248	# HACK to clear player env face cache, we need some signal framework
		3249	# for this (global event?)
		3250	%ext::player_env::MUSIC_FACE_CACHE = ();
		3251
		3252	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3253
		3254	warn "loading facedata from $path\n";
		3255
		3256	my $facedata;
		3257	0 < aio_load $path, $facedata
		3258	or die "$path: $!";
		3259
		3260	$facedata = Coro::Storable::thaw $facedata;
		3261
		3262	$facedata->{version} == 2
		3263	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3264
		3265	# patch in the exptable
		3266	$facedata->{resource}{"res/exp_table"} = {
		3267	type => FT_RSRC,
		3268	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3269	};
		3270	cf::cede_to_tick;
		3271
		3272	{
		3273	my $faces = $facedata->{faceinfo};
		3274
		3275	while (my ($face, $info) = each %$faces) {
		3276	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3277
		3278	cf::face::set_visibility $idx, $info->{visibility};
		3279	cf::face::set_magicmap $idx, $info->{magicmap};
		3280	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3281	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3282
		3283	cf::cede_to_tick;
		3284	}
		3285
		3286	while (my ($face, $info) = each %$faces) {
		3287	next unless $info->{smooth};
		3288
		3289	my $idx = cf::face::find $face
		3290	or next;
		3291
		3292	if (my $smooth = cf::face::find $info->{smooth}) {
		3293	cf::face::set_smooth $idx, $smooth;
		3294	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3295	} else {
		3296	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3297	}
		3298
		3299	cf::cede_to_tick;
		3300	}
		3301	}
		3302
		3303	{
		3304	my $anims = $facedata->{animinfo};
		3305
		3306	while (my ($anim, $info) = each %$anims) {
		3307	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3308	cf::cede_to_tick;
		3309	}
		3310
		3311	cf::anim::invalidate_all; # d'oh
		3312	}
		3313
		3314	{
		3315	# TODO: for gcfclient pleasure, we should give resources
		3316	# that gcfclient doesn't grok a >10000 face index.
		3317	my $res = $facedata->{resource};
		3318
		3319	while (my ($name, $info) = each %$res) {
		3320	if (defined $info->{type}) {
		3321	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3322	my $data;
		3323
		3324	if ($info->{type} & 1) {
		3325	# prepend meta info
		3326
		3327	my $meta = $enc->encode ({
		3328	name => $name,
		3329	%{ $info->{meta} || {} },
		3330	});
		3331
		3332	$data = pack "(w/a*)*", $meta, $info->{data};
		3333	} else {
		3334	$data = $info->{data};
		3335	}
		3336
		3337	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3338	cf::face::set_type $idx, $info->{type};
		3339	} else {
		3340	$RESOURCE{$name} = $info;
		3341	}
		3342
		3343	cf::cede_to_tick;
		3344	}
		3345	}
		3346
		3347	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3348
		3349	1
		3350	}
		3351
		3352	cf::global->attach (on_resource_update => sub {
		3353	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3354	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3355
		3356	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3357	my $sound = $soundconf->{compat}[$_]
		3358	or next;
		3359
		3360	my $face = cf::face::find "sound/$sound->[1]";
		3361	cf::sound::set $sound->[0] => $face;
		3362	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3363	}
		3364
		3365	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3366	my $face = cf::face::find "sound/$v";
		3367	cf::sound::set $k => $face;
		3368	}
		3369	}
		3370	});
		3371
		3372	register_exticmd fx_want => sub {
		3373	my ($ns, $want) = @_;
		3374
		3375	while (my ($k, $v) = each %$want) {
		3376	$ns->fx_want ($k, $v);
		3377	}
		3378	};
		3379
		3380	sub load_resource_file($) {
		3381	my $guard = lock_acquire "load_resource_file";
		3382
		3383	my $status = load_resource_file_ $_[0];
		3384	get_slot 0.1, 100;
		3385	cf::arch::commit_load;
		3386
		3387	$status
		3388	}
		3389
		3390	sub reload_regions {
		3391	# HACK to clear player env face cache, we need some signal framework
		3392	# for this (global event?)
		3393	%ext::player_env::MUSIC_FACE_CACHE = ();
		3394
		3395	load_resource_file "$MAPDIR/regions"
2273	or die "unable to load regions file\n";#d#	3396	or die "unable to load regions file\n";
2274	}
2275		3397
2276	sub cfg_load {	3398	for (cf::region::list) {
		3399	$_->{match} = qr/$_->{match}/
		3400	if exists $_->{match};
		3401	}
		3402	}
		3403
		3404	sub reload_facedata {
		3405	load_facedata "$DATADIR/facedata"
		3406	or die "unable to load facedata\n";
		3407	}
		3408
		3409	sub reload_archetypes {
		3410	load_resource_file "$DATADIR/archetypes"
		3411	or die "unable to load archetypes\n";
		3412	}
		3413
		3414	sub reload_treasures {
		3415	load_resource_file "$DATADIR/treasures"
		3416	or die "unable to load treasurelists\n";
		3417	}
		3418
		3419	sub reload_resources {
		3420	warn "reloading resource files...\n";
		3421
		3422	reload_facedata;
		3423	reload_archetypes;
		3424	reload_regions;
		3425	reload_treasures;
		3426
		3427	warn "finished reloading resource files\n";
		3428	}
		3429
		3430	sub reload_config {
		3431	warn "reloading config file...\n";
		3432
2277	open my $fh, "<:utf8", cf::confdir . "/config"	3433	open my $fh, "<:utf8", "$CONFDIR/config"
2278	or return;	3434	or return;
2279		3435
2280	local $/;	3436	local $/;
2281	*CFG = YAML::Syck::Load <$fh>;	3437	*CFG = YAML::XS::Load scalar <$fh>;
2282		3438
2283	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3439	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2284		3440
2285	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3441	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2286	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3442	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2290	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3446	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2291	and die "WARNING: m(un)lockall failed: $!\n";	3447	and die "WARNING: m(un)lockall failed: $!\n";
2292	};	3448	};
2293	warn $@ if $@;	3449	warn $@ if $@;
2294	}	3450	}
2295	}
2296		3451
2297	sub init {	3452	warn "finished reloading resource files\n";
2298	init_resources;	3453	}
		3454
		3455	sub pidfile() {
		3456	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3457	or die "$PIDFILE: $!";
		3458	flock $fh, &Fcntl::LOCK_EX
		3459	or die "$PIDFILE: flock: $!";
		3460	$fh
		3461	}
		3462
		3463	# make sure only one server instance is running at any one time
		3464	sub atomic {
		3465	my $fh = pidfile;
		3466
		3467	my $pid = <$fh>;
		3468	kill 9, $pid if $pid > 0;
		3469
		3470	seek $fh, 0, 0;
		3471	print $fh $$;
		3472	}
		3473
		3474	sub main_loop {
		3475	warn "EV::loop starting\n";
		3476	if (1) {
		3477	EV::loop;
		3478	}
		3479	warn "EV::loop returned\n";
		3480	goto &main_loop unless $REALLY_UNLOOP;
2299	}	3481	}
2300		3482
2301	sub main {	3483	sub main {
		3484	cf::init_globals; # initialise logging
		3485
		3486	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3487	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3488	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3489	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3490
		3491	cf::init_experience;
		3492	cf::init_anim;
		3493	cf::init_attackmess;
		3494	cf::init_dynamic;
		3495
		3496	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3497
2302	# we must not ever block the main coroutine	3498	# we must not ever block the main coroutine
2303	local $Coro::idle = sub {	3499	local $Coro::idle = sub {
2304	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3500	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2305	(async {	3501	(async {
2306	Event::one_event;	3502	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3503	EV::loop EV::LOOP_ONESHOT;
2307	})->prio (Coro::PRIO_MAX);	3504	})->prio (Coro::PRIO_MAX);
2308	};	3505	};
2309		3506
2310	cfg_load;	3507	evthread_start IO::AIO::poll_fileno;
		3508
		3509	cf::sync_job {
		3510	reload_resources;
		3511	reload_config;
2311	db_init;	3512	db_init;
		3513
		3514	cf::load_settings;
		3515	cf::load_materials;
		3516	cf::init_uuid;
		3517	cf::init_signals;
		3518	cf::init_commands;
		3519	cf::init_skills;
		3520
		3521	cf::init_beforeplay;
		3522
		3523	atomic;
		3524
2312	load_extensions;	3525	load_extensions;
2313		3526
2314	$TICK_WATCHER->start;	3527	utime time, time, $RUNTIMEFILE;
2315	Event::loop;	3528
		3529	# no (long-running) fork's whatsoever before this point(!)
		3530	use POSIX ();
		3531	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3532
		3533	(pop @POST_INIT)->(0) while @POST_INIT;
		3534	};
		3535
		3536	main_loop;
2316	}	3537	}
2317		3538
2318	#############################################################################	3539	#############################################################################
2319	# initialisation and cleanup	3540	# initialisation and cleanup
2320		3541
2321	# install some emergency cleanup handlers	3542	# install some emergency cleanup handlers
2322	BEGIN {	3543	BEGIN {
		3544	our %SIGWATCHER = ();
2323	for my $signal (qw(INT HUP TERM)) {	3545	for my $signal (qw(INT HUP TERM)) {
2324	Event->signal (	3546	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2325	reentrant => 0,
2326	data => WF_AUTOCANCEL,
2327	signal => $signal,
2328	prio => 0,
2329	cb => sub {
2330	cf::cleanup "SIG$signal";	3547	cf::cleanup "SIG$signal";
2331	},
2332	);	3548	};
		3549	}
		3550	}
		3551
		3552	sub write_runtime_sync {
		3553	# first touch the runtime file to show we are still running:
		3554	# the fsync below can take a very very long time.
		3555
		3556	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3557
		3558	my $guard = cf::lock_acquire "write_runtime";
		3559
		3560	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3561	or return;
		3562
		3563	my $value = $cf::RUNTIME + 90 + 10;
		3564	# 10 is the runtime save interval, for a monotonic clock
		3565	# 60 allows for the watchdog to kill the server.
		3566
		3567	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3568	and return;
		3569
		3570	# always fsync - this file is important
		3571	aio_fsync $fh
		3572	and return;
		3573
		3574	# touch it again to show we are up-to-date
		3575	aio_utime $fh, undef, undef;
		3576
		3577	close $fh
		3578	or return;
		3579
		3580	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3581	and return;
		3582
		3583	warn "runtime file written.\n";
		3584
2333	}	3585	1
		3586	}
		3587
		3588	our $uuid_lock;
		3589	our $uuid_skip;
		3590
		3591	sub write_uuid_sync($) {
		3592	$uuid_skip ||= $_[0];
		3593
		3594	return if $uuid_lock;
		3595	local $uuid_lock = 1;
		3596
		3597	my $uuid = "$LOCALDIR/uuid";
		3598
		3599	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3600	or return;
		3601
		3602	my $value = uuid_seq uuid_cur;
		3603
		3604	unless ($value) {
		3605	warn "cowardly refusing to write zero uuid value!\n";
		3606	return;
		3607	}
		3608
		3609	my $value = uuid_str $value + $uuid_skip;
		3610	$uuid_skip = 0;
		3611
		3612	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3613	and return;
		3614
		3615	# always fsync - this file is important
		3616	aio_fsync $fh
		3617	and return;
		3618
		3619	close $fh
		3620	or return;
		3621
		3622	aio_rename "$uuid~", $uuid
		3623	and return;
		3624
		3625	warn "uuid file written ($value).\n";
		3626
		3627	1
		3628
		3629	}
		3630
		3631	sub write_uuid($$) {
		3632	my ($skip, $sync) = @_;
		3633
		3634	$sync ? write_uuid_sync $skip
		3635	: async { write_uuid_sync $skip };
2334	}	3636	}
2335		3637
2336	sub emergency_save() {	3638	sub emergency_save() {
2337	my $freeze_guard = cf::freeze_mainloop;	3639	my $freeze_guard = cf::freeze_mainloop;
2338		3640
2339	warn "enter emergency perl save\n";	3641	warn "emergency_perl_save: enter\n";
2340		3642
2341	cf::sync_job {	3643	cf::sync_job {
		3644	# this is a trade-off: we want to be very quick here, so
		3645	# save all maps without fsync, and later call a global sync
		3646	# (which in turn might be very very slow)
		3647	local $USE_FSYNC = 0;
		3648
2342	# use a peculiar iteration method to avoid tripping on perl	3649	# use a peculiar iteration method to avoid tripping on perl
2343	# refcount bugs in for. also avoids problems with players	3650	# refcount bugs in for. also avoids problems with players
2344	# and maps saved/destroyed asynchronously.	3651	# and maps saved/destroyed asynchronously.
2345	warn "begin emergency player save\n";	3652	warn "emergency_perl_save: begin player save\n";
2346	for my $login (keys %cf::PLAYER) {	3653	for my $login (keys %cf::PLAYER) {
2347	my $pl = $cf::PLAYER{$login} or next;	3654	my $pl = $cf::PLAYER{$login} or next;
2348	$pl->valid or next;	3655	$pl->valid or next;
		3656	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2349	$pl->save;	3657	$pl->save;
2350	}	3658	}
2351	warn "end emergency player save\n";	3659	warn "emergency_perl_save: end player save\n";
2352		3660
2353	warn "begin emergency map save\n";	3661	warn "emergency_perl_save: begin map save\n";
2354	for my $path (keys %cf::MAP) {	3662	for my $path (keys %cf::MAP) {
2355	my $map = $cf::MAP{$path} or next;	3663	my $map = $cf::MAP{$path} or next;
2356	$map->valid or next;	3664	$map->valid or next;
2357	$map->save;	3665	$map->save;
2358	}	3666	}
2359	warn "end emergency map save\n";	3667	warn "emergency_perl_save: end map save\n";
2360		3668
2361	warn "begin emergency database checkpoint\n";	3669	warn "emergency_perl_save: begin database checkpoint\n";
2362	BDB::db_env_txn_checkpoint $DB_ENV;	3670	BDB::db_env_txn_checkpoint $DB_ENV;
2363	warn "end emergency database checkpoint\n";	3671	warn "emergency_perl_save: end database checkpoint\n";
		3672
		3673	warn "emergency_perl_save: begin write uuid\n";
		3674	write_uuid_sync 1;
		3675	warn "emergency_perl_save: end write uuid\n";
2364	};	3676	};
2365		3677
		3678	warn "emergency_perl_save: starting sync()\n";
		3679	IO::AIO::aio_sync sub {
		3680	warn "emergency_perl_save: finished sync()\n";
		3681	};
		3682
2366	warn "leave emergency perl save\n";	3683	warn "emergency_perl_save: leave\n";
2367	}	3684	}
2368		3685
2369	sub post_cleanup {	3686	sub post_cleanup {
2370	my ($make_core) = @_;	3687	my ($make_core) = @_;
2371		3688
2372	warn Carp::longmess "post_cleanup backtrace"	3689	warn Carp::longmess "post_cleanup backtrace"
2373	if $make_core;	3690	if $make_core;
2374	}
2375		3691
		3692	my $fh = pidfile;
		3693	unlink $PIDFILE if <$fh> == $$;
		3694	}
		3695
		3696	# a safer delete_package, copied from Symbol
		3697	sub clear_package($) {
		3698	my $pkg = shift;
		3699
		3700	# expand to full symbol table name if needed
		3701	unless ($pkg =~ /^main::.*::$/) {
		3702	$pkg = "main$pkg" if $pkg =~ /^::/;
		3703	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3704	$pkg .= '::' unless $pkg =~ /::$/;
		3705	}
		3706
		3707	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3708	my $stem_symtab = *{$stem}{HASH};
		3709
		3710	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3711	or return;
		3712
		3713	# clear all symbols
		3714	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3715	for my $name (keys %$leaf_symtab) {
		3716	_gv_clear *{"$pkg$name"};
		3717	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3718	}
		3719	warn "cleared package $pkg\n";#d#
		3720	}
		3721
2376	sub reload() {	3722	sub do_reload_perl() {
2377	# can/must only be called in main	3723	# can/must only be called in main
2378	if ($Coro::current != $Coro::main) {	3724	if ($Coro::current != $Coro::main) {
2379	warn "can only reload from main coroutine";	3725	warn "can only reload from main coroutine";
2380	return;	3726	return;
2381	}	3727	}
2382		3728
		3729	return if $RELOAD++;
		3730
		3731	my $t1 = EV::time;
		3732
		3733	while ($RELOAD) {
2383	warn "reloading...";	3734	warn "reloading...";
2384		3735
2385	warn "entering sync_job";	3736	warn "entering sync_job";
2386		3737
2387	cf::sync_job {	3738	cf::sync_job {
2388	cf::write_runtime; # external watchdog should not bark	3739	cf::write_runtime_sync; # external watchdog should not bark
2389	cf::emergency_save;	3740	cf::emergency_save;
2390	cf::write_runtime; # external watchdog should not bark	3741	cf::write_runtime_sync; # external watchdog should not bark
2391		3742
2392	warn "syncing database to disk";	3743	warn "syncing database to disk";
2393	BDB::db_env_txn_checkpoint $DB_ENV;	3744	BDB::db_env_txn_checkpoint $DB_ENV;
2394		3745
2395	# if anything goes wrong in here, we should simply crash as we already saved	3746	# if anything goes wrong in here, we should simply crash as we already saved
2396		3747
2397	warn "cancelling all WF_AUTOCANCEL watchers";
2398	for (Event::all_watchers) {
2399	$_->cancel if $_->data & WF_AUTOCANCEL;
2400	}
2401
2402	warn "flushing outstanding aio requests";	3748	warn "flushing outstanding aio requests";
2403	for (;;) {
2404	BDB::flush;
2405	IO::AIO::flush;
2406	Coro::cede;
2407	last unless IO::AIO::nreqs || BDB::nreqs;	3749	while (IO::AIO::nreqs || BDB::nreqs) {
2408	warn "iterate...";	3750	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2409	}
2410
2411	warn "cancelling all extension coros";
2412	$_->cancel for values %EXT_CORO;
2413	%EXT_CORO = ();
2414
2415	warn "removing commands";
2416	%COMMAND = ();
2417
2418	warn "removing ext commands";
2419	%EXTCMD = ();
2420
2421	warn "unloading/nuking all extensions";
2422	for my $pkg (@EXTS) {
2423	warn "... unloading $pkg";
2424
2425	if (my $cb = $pkg->can ("unload")) {
2426	eval {
2427	$cb->($pkg);
2428	1
2429	} or warn "$pkg unloaded, but with errors: $@";
2430	}	3751	}
2431		3752
2432	warn "... nuking $pkg";	3753	warn "cancelling all extension coros";
2433	Symbol::delete_package $pkg;	3754	$_->cancel for values %EXT_CORO;
2434	}	3755	%EXT_CORO = ();
2435		3756
2436	warn "unloading all perl modules loaded from $LIBDIR";	3757	warn "removing commands";
2437	while (my ($k, $v) = each %INC) {	3758	%COMMAND = ();
2438	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2439		3759
		3760	warn "removing ext/exti commands";
		3761	%EXTCMD = ();
		3762	%EXTICMD = ();
		3763
		3764	warn "unloading/nuking all extensions";
		3765	for my $pkg (@EXTS) {
2440	warn "... unloading $k";	3766	warn "... unloading $pkg";
2441	delete $INC{$k};
2442		3767
2443	$k =~ s/\.pm$//;
2444	$k =~ s/\//::/g;
2445
2446	if (my $cb = $k->can ("unload_module")) {	3768	if (my $cb = $pkg->can ("unload")) {
		3769	eval {
2447	$cb->();	3770	$cb->($pkg);
		3771	1
		3772	} or warn "$pkg unloaded, but with errors: $@";
		3773	}
		3774
		3775	warn "... clearing $pkg";
		3776	clear_package $pkg;
2448	}	3777	}
2449		3778
2450	Symbol::delete_package $k;	3779	warn "unloading all perl modules loaded from $LIBDIR";
		3780	while (my ($k, $v) = each %INC) {
		3781	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3782
		3783	warn "... unloading $k";
		3784	delete $INC{$k};
		3785
		3786	$k =~ s/\.pm$//;
		3787	$k =~ s/\//::/g;
		3788
		3789	if (my $cb = $k->can ("unload_module")) {
		3790	$cb->();
		3791	}
		3792
		3793	clear_package $k;
2451	}	3794	}
2452		3795
2453	warn "getting rid of safe::, as good as possible";	3796	warn "getting rid of safe::, as good as possible";
2454	Symbol::delete_package "safe::$_"	3797	clear_package "safe::$_"
2455	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3798	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2456		3799
2457	warn "unloading cf.pm \"a bit\"";	3800	warn "unloading cf.pm \"a bit\"";
2458	delete $INC{"cf.pm"};	3801	delete $INC{"cf.pm"};
		3802	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2459		3803
2460	# don't, removes xs symbols, too,	3804	# don't, removes xs symbols, too,
2461	# and global variables created in xs	3805	# and global variables created in xs
2462	#Symbol::delete_package __PACKAGE__;	3806	#clear_package __PACKAGE__;
2463		3807
2464	warn "unload completed, starting to reload now";	3808	warn "unload completed, starting to reload now";
2465		3809
2466	warn "reloading cf.pm";	3810	warn "reloading cf.pm";
2467	require cf;	3811	require cf;
2468	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3812	cf::_connect_to_perl_1;
2469		3813
2470	warn "loading config and database again";	3814	warn "loading config and database again";
2471	cf::cfg_load;	3815	cf::reload_config;
2472		3816
2473	warn "loading extensions";	3817	warn "loading extensions";
2474	cf::load_extensions;	3818	cf::load_extensions;
2475		3819
		3820	if ($REATTACH_ON_RELOAD) {
2476	warn "reattaching attachments to objects/players";	3821	warn "reattaching attachments to objects/players";
2477	_global_reattach;	3822	_global_reattach; # objects, sockets
2478	warn "reattaching attachments to maps";	3823	warn "reattaching attachments to maps";
2479	reattach $_ for values %MAP;	3824	reattach $_ for values %MAP;
		3825	warn "reattaching attachments to players";
		3826	reattach $_ for values %PLAYER;
		3827	}
2480		3828
2481	warn "loading reloadable resources";	3829	warn "running post_init jobs";
2482	init_resources;	3830	(pop @POST_INIT)->(1) while @POST_INIT;
2483		3831
2484	warn "leaving sync_job";	3832	warn "leaving sync_job";
2485		3833
2486	1	3834	1
2487	} or do {	3835	} or do {
2488	warn $@;	3836	warn $@;
2489	warn "error while reloading, exiting.";	3837	cf::cleanup "error while reloading, exiting.";
2490	exit 1;	3838	};
		3839
		3840	warn "reloaded";
		3841	--$RELOAD;
		3842	}
		3843
		3844	$t1 = EV::time - $t1;
		3845	warn "reload completed in ${t1}s\n";
		3846	};
		3847
		3848	our $RELOAD_WATCHER; # used only during reload
		3849
		3850	sub reload_perl() {
		3851	# doing reload synchronously and two reloads happen back-to-back,
		3852	# coro crashes during coro_state_free->destroy here.
		3853
		3854	$RELOAD_WATCHER ||= cf::async {
		3855	Coro::AIO::aio_wait cache_extensions;
		3856
		3857	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3858	do_reload_perl;
		3859	undef $RELOAD_WATCHER;
		3860	};
2491	};	3861	};
2492		3862	}
2493	warn "reloaded";
2494	};
2495
2496	our $RELOAD_WATCHER; # used only during reload
2497		3863
2498	register_command "reload" => sub {	3864	register_command "reload" => sub {
2499	my ($who, $arg) = @_;	3865	my ($who, $arg) = @_;
2500		3866
2501	if ($who->flag (FLAG_WIZ)) {	3867	if ($who->flag (FLAG_WIZ)) {
2502	$who->message ("reloading server.");	3868	$who->message ("reloading server.");
2503		3869	async {
2504	# doing reload synchronously and two reloads happen back-to-back,	3870	$Coro::current->{desc} = "perl_reload";
2505	# coro crashes during coro_state_free->destroy here.
2506
2507	$RELOAD_WATCHER ||= Event->timer (
2508	reentrant => 0,
2509	after => 0,
2510	data => WF_AUTOCANCEL,
2511	cb => sub {
2512	reload;	3871	reload_perl;
2513	undef $RELOAD_WATCHER;
2514	},
2515	);	3872	};
2516	}	3873	}
2517	};	3874	};
2518		3875
2519	unshift @INC, $LIBDIR;	3876	unshift @INC, $LIBDIR;
2520		3877
2521	my $bug_warning = 0;	3878	my $bug_warning = 0;
2522		3879
2523	$TICK_WATCHER = Event->timer (	3880	our @WAIT_FOR_TICK;
2524	reentrant => 0,	3881	our @WAIT_FOR_TICK_BEGIN;
2525	parked => 1,	3882
2526	prio => 0,	3883	sub wait_for_tick {
2527	at => $NEXT_TICK || $TICK,	3884	return if tick_inhibit || $Coro::current == $Coro::main;
2528	data => WF_AUTOCANCEL,	3885
2529	cb => sub {	3886	my $signal = new Coro::Signal;
		3887	push @WAIT_FOR_TICK, $signal;
		3888	$signal->wait;
		3889	}
		3890
		3891	sub wait_for_tick_begin {
		3892	return if tick_inhibit || $Coro::current == $Coro::main;
		3893
		3894	my $signal = new Coro::Signal;
		3895	push @WAIT_FOR_TICK_BEGIN, $signal;
		3896	$signal->wait;
		3897	}
		3898
		3899	sub tick {
2530	if ($Coro::current != $Coro::main) {	3900	if ($Coro::current != $Coro::main) {
2531	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3901	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2532	unless ++$bug_warning > 10;	3902	unless ++$bug_warning > 10;
2533	return;	3903	return;
2534	}	3904	}
2535		3905
2536	$NOW = Event::time;
2537
2538	cf::server_tick; # one server iteration	3906	cf::server_tick; # one server iteration
2539	$RUNTIME += $TICK;
2540	$NEXT_TICK += $TICK;
2541		3907
2542	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3908	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2543	$NEXT_RUNTIME_WRITE = $NOW + 10;	3909	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2544	Coro::async_pool {	3910	Coro::async_pool {
		3911	$Coro::current->{desc} = "runtime saver";
2545	write_runtime	3912	write_runtime_sync
2546	or warn "ERROR: unable to write runtime file: $!";	3913	or warn "ERROR: unable to write runtime file: $!";
2547	};
2548	}	3914	};
2549
2550	$WAIT_FOR_TICK->broadcast;
2551	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2552
2553	# my $AFTER = Event::time;
2554	# warn $AFTER - $NOW;#d#
2555
2556	# if we are delayed by four ticks or more, skip them all
2557	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2558
2559	$TICK_WATCHER->at ($NEXT_TICK);
2560	$TICK_WATCHER->start;
2561	},	3915	}
2562	);	3916
		3917	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3918	$sig->send;
		3919	}
		3920	while (my $sig = shift @WAIT_FOR_TICK) {
		3921	$sig->send;
		3922	}
		3923
		3924	$LOAD = ($NOW - $TICK_START) / $TICK;
		3925	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3926
		3927	if (0) {
		3928	if ($NEXT_TICK) {
		3929	my $jitter = $TICK_START - $NEXT_TICK;
		3930	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3931	warn "jitter $JITTER\n";#d#
		3932	}
		3933	}
		3934	}
2563		3935
2564	{	3936	{
2565	BDB::max_poll_time $TICK * 0.1;	3937	# configure BDB
2566	$BDB_POLL_WATCHER = Event->io (	3938
2567	reentrant => 0,
2568	fd => BDB::poll_fileno,
2569	poll => 'r',
2570	prio => 0,
2571	data => WF_AUTOCANCEL,
2572	cb => \&BDB::poll_cb,
2573	);
2574	BDB::min_parallel 8;	3939	BDB::min_parallel 8;
2575		3940	BDB::max_poll_reqs $TICK * 0.1;
2576	BDB::set_sync_prepare {	3941	$AnyEvent::BDB::WATCHER->priority (1);
2577	my $status;
2578	my $current = $Coro::current;
2579	(
2580	sub {
2581	$status = $!;
2582	$current->ready; undef $current;
2583	},
2584	sub {
2585	Coro::schedule while defined $current;
2586	$! = $status;
2587	},
2588	)
2589	};
2590		3942
2591	unless ($DB_ENV) {	3943	unless ($DB_ENV) {
2592	$DB_ENV = BDB::db_env_create;	3944	$DB_ENV = BDB::db_env_create;
		3945	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3946	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3947	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3948	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3949	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2593		3950
2594	cf::sync_job {	3951	cf::sync_job {
2595	eval {	3952	eval {
2596	BDB::db_env_open	3953	BDB::db_env_open
2597	$DB_ENV,	3954	$DB_ENV,
2598	$BDB_ENV_DIR,	3955	$BDBDIR,
2599	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3956	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2600	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3957	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2601	0666;	3958	0666;
2602		3959
2603	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3960	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2604
2605	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2606	$DB_ENV->set_lk_detect;
2607	};	3961	};
2608		3962
2609	cf::cleanup "db_env_open(db): $@" if $@;	3963	cf::cleanup "db_env_open(db): $@" if $@;
2610	};	3964	};
2611	}	3965	}
		3966
		3967	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3968	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3969	};
		3970	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3971	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3972	};
		3973	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3974	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3975	};
2612	}	3976	}
2613		3977
2614	{	3978	{
		3979	# configure IO::AIO
		3980
2615	IO::AIO::min_parallel 8;	3981	IO::AIO::min_parallel 8;
2616
2617	undef $Coro::AIO::WATCHER;
2618	IO::AIO::max_poll_time $TICK * 0.1;	3982	IO::AIO::max_poll_time $TICK * 0.1;
2619	$AIO_POLL_WATCHER = Event->io (	3983	undef $AnyEvent::AIO::WATCHER;
2620	reentrant => 0,
2621	data => WF_AUTOCANCEL,
2622	fd => IO::AIO::poll_fileno,
2623	poll => 'r',
2624	prio => 6,
2625	cb => \&IO::AIO::poll_cb,
2626	);
2627	}	3984	}
		3985
		3986	my $_log_backtrace;
		3987
		3988	sub _log_backtrace {
		3989	my ($msg, @addr) = @_;
		3990
		3991	$msg =~ s/\n//;
		3992
		3993	# limit the # of concurrent backtraces
		3994	if ($_log_backtrace < 2) {
		3995	++$_log_backtrace;
		3996	my $perl_bt = Carp::longmess $msg;
		3997	async {
		3998	$Coro::current->{desc} = "abt $msg";
		3999
		4000	my @bt = fork_call {
		4001	@addr = map { sprintf "%x", $_ } @addr;
		4002	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4003	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4004	or die "addr2line: $!";
		4005
		4006	my @funcs;
		4007	my @res = <$fh>;
		4008	chomp for @res;
		4009	while (@res) {
		4010	my ($func, $line) = splice @res, 0, 2, ();
		4011	push @funcs, "[$func] $line";
		4012	}
		4013
		4014	@funcs
		4015	};
		4016
		4017	LOG llevInfo, "[ABT] $perl_bt\n";
		4018	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4019	LOG llevInfo, "[ABT] $_\n" for @bt;
		4020	--$_log_backtrace;
		4021	};
		4022	} else {
		4023	LOG llevInfo, "[ABT] $msg\n";
		4024	LOG llevInfo, "[ABT] [suppressed]\n";
		4025	}
		4026	}
		4027
		4028	# load additional modules
		4029	require "cf/$_.pm" for @EXTRA_MODULES;
		4030	cf::_connect_to_perl_2;
2628		4031
2629	END { cf::emergency_save }	4032	END { cf::emergency_save }
2630		4033
2631	1	4034	1
2632		4035

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