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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.239 by root, Mon Apr 16 06:23:42 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;
9	use Event;	32	use EV;
10	use Opcode;	33	use Opcode;
11	use Safe;	34	use Safe;
12	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
13		37
		38	use Guard ();
14	use Coro 3.52 ();	39	use Coro ();
15	use Coro::State;	40	use Coro::State;
		41	use Coro::Handle;
		42	use Coro::EV;
16	use Coro::Event;	43	use Coro::AnyEvent;
17	use Coro::Timer;	44	use Coro::Timer;
18	use Coro::Signal;	45	use Coro::Signal;
19	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
20	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
21	use Coro::Storable;	51	use Coro::Storable;
		52	use Coro::Util ();
22		53
		54	use JSON::XS 2.01 ();
23	use BDB ();	55	use BDB ();
24	use Data::Dumper;	56	use Data::Dumper;
25	use Digest::MD5;	57	use Digest::MD5;
26	use Fcntl;	58	use Fcntl;
27	use YAML::Syck ();	59	use YAML::XS ();
28	use IO::AIO 2.32 ();	60	use IO::AIO ();
29	use Time::HiRes;	61	use Time::HiRes;
30	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
31		66
32	# configure various modules to our taste	67	# configure various modules to our taste
33	#	68	#
34	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
35	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
36	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
37		77
38	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
39		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
40	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
41	$YAML::Syck::ImplicitUnicode = 1;
42
43	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
44		80
45	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
46		82
47	our %COMMAND = ();	83	our %COMMAND = ();
48	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
49		85
50	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
51	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
52	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
54		91
55	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
56	our @EVENT;	93	our @EVENT;
57	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
58		96
59	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
60	our $TICK_WATCHER;	98	our $DATADIR = datadir;
61	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(!)
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
63	our $NEXT_TICK;	115	our $NEXT_TICK;
64	our $NOW;
65	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
66		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
67	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
68	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
69		124
70	our %CFG;	125	our %CFG;
71		126
72	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
73	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
74		130
75	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
76	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
78	our $RANDOM_MAPS = cf::localdir . "/random";
79	our $BDB_ENV_DIR = cf::localdir . "/db";
80		134
81	# 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 ∕
82	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
83		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 $REALLY_UNLOOP; # never set to true, please :)
		147
84	binmode STDOUT;	148	binmode STDOUT;
85	binmode STDERR;	149	binmode STDERR;
86		150
87	# read virtual server time, if available	151	# read virtual server time, if available
88	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
89	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
90	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
91	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
92	}	156	}
93		157
94	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
95	mkdir cf::localdir . "/" . cf::playerdir;	159
96	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
97	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
98	mkdir $RANDOM_MAPS;
99	mkdir $BDB_ENV_DIR;
100		162
101	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
102		164
103	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::"} };
104		177
105	#############################################################################	178	#############################################################################
106		179
107	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
108		181
…		…
115	=item $cf::RUNTIME	188	=item $cf::RUNTIME
116		189
117	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
118	every server tick.	191	every server tick.
119		192
120	=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
121		196
122	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
123	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.
124		201
125	=item $cf::NOW	202	=item $cf::NOW
126		203
127	The time of the last (current) server tick.	204	The time of the last (current) server tick.
128		205
129	=item $cf::TICK	206	=item $cf::TICK
130		207
131	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
132		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
133	=item %cf::CFG	220	=item %cf::CFG
134		221
135	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
136	from wherever your confdir points to.	223	from wherever your confdir points to.
137		224
138	=item cf::wait_for_tick, cf::wait_for_tick_begin	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
139		226
140	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
141	returns directly I<after> the tick processing (and consequently, can only wake one process	228	returns directly I<after> the tick processing (and consequently, can only wake one process
142	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
143		230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
		242
144	=back	243	=back
145		244
146	=cut	245	=cut
147		246
148	BEGIN {	247	$Coro::State::WARNHOOK = sub {
149	*CORE::GLOBAL::warn = sub {
150	my $msg = join "", @_;	248	my $msg = join "", @_;
151	utf8::encode $msg;
152		249
153	$msg .= "\n"	250	$msg .= "\n"
154	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
155		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
156	LOG llevError, $msg;	255	LOG llevError, $msg;
157	};	256	};
158	}	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	};
159		271
160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
162	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
163	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
164	@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';
165	@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)
166		279
167	# 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
168	# within the Safe compartment.	281	# within the Safe compartment.
169	for my $pkg (qw(	282	for my $pkg (qw(
170	cf::global cf::attachable	283	cf::global cf::attachable
171	cf::object cf::object::player	284	cf::object cf::object::player
172	cf::client cf::player	285	cf::client cf::player
173	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
174	cf::map cf::party cf::region	288	cf::party cf::region
175	)) {	289	)) {
176	no strict 'refs';
177	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
178	}	291	}
179		292
180	$Event::DIED = sub {	293	$EV::DIED = sub {
181	warn "error in event callback: @_";	294	warn "error in event callback: @_";
182	};	295	};
		296
		297	#############################################################################
183		298
184	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
185		300
186	=over 4	301	=over 4
187		302
…		…
206	$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;
207	$d	322	$d
208	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
209	}	324	}
210		325
211	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
212
213	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
214		327
215	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
216		329
217	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
218		331
219	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
220		333
		334	=cut
		335
		336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		337
		338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
		353	}
		354
221	=item cf::lock_wait $string	355	=item cf::lock_wait $string
222		356
223	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
224		358
225	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
226		360
227	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
228	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,
229	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
230	returned.	364	returned.
231		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
232	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
233	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
234		371
235	=cut	372	=item $locked = cf::lock_active $string
236		373
237	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
238		379
239	sub lock_wait($) {	380	sub lock_wait($) {
240	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
241
242	# wait for lock, if any
243	while ($LOCK{$key}) {
244	push @{ $LOCK{$key} }, $Coro::current;
245	Coro::schedule;
246	}
247	}	382	}
248		383
249	sub lock_acquire($) {	384	sub lock_acquire($) {
250	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
251		387
252	# wait, to be sure we are not locked	388	sub lock_active($) {
253	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
254
255	$LOCK{$key} = [];
256
257	Coro::guard {
258	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };
260	}
261	}	390	}
262		391
263	sub freeze_mainloop {	392	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
265		394
266	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
267	$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($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
268	};	456	}
269	$TICK_WATCHER->stop;	457	};
270	$guard	458
		459	sub get_slot($;$$) {
		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	$sig->wait;
271	}	471	}
272		472
273	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
274		474
275	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		480
281	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
282		482
283	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
284		484
285	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
288		489
289	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
292	fast or be very important.	493	fast or be very important.
…		…
295		496
296	sub sync_job(&) {	497	sub sync_job(&) {
297	my ($job) = @_;	498	my ($job) = @_;
298		499
299	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
300	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
302		505
303	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	507
305	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
306		509
307	my $busy = 1;	510	my $busy = 1;
308	my @res;	511	my @res;
309		512
310	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	515	@res = eval { $job->() };
312	warn $@ if $@;	516	warn $@ if $@;
313	undef $busy;	517	undef $busy;
314	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
315		519
316	while ($busy) {	520	while ($busy) {
317	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
318	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
319		531
320	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
321	} else {	533	} else {
322	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
323		535
…		…
343	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
344		556
345	$coro	557	$coro
346	}	558	}
347		559
348	sub write_runtime {	560	=item fork_call { }, $args
349	my $guard = cf::lock_acquire "write_runtime";
350		561
351	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.
352		566
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	567	=cut
354	or return;
355		568
356	my $value = $cf::RUNTIME + 90 + 10;	569	sub fork_call(&@) {
357	# 10 is the runtime save interval, for a monotonic clock	570	my ($cb, @args) = @_;
358	# 60 allows for the watchdog to kill the server.
359		571
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	572	# we seemingly have to make a local copy of the whole thing,
361	and return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
362		575
363	# always fsync - this file is important	576	my @res = Coro::Util::fork_eval {
364	aio_fsync $fh	577	reset_signals;
365	and return;	578	&$cb
		579	}, @args;
366		580
367	close $fh	581	wantarray ? @res : $res[-1]
368	or return;	582	}
369		583
370	aio_rename "$runtime~", $runtime	584	=item $coin = coin_from_name $name
371	and return;
372		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		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($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
373	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		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"
374	}	736	}
375		737
376	=item cf::datalog type => key => value, ...	738	=item cf::datalog type => key => value, ...
377		739
378	Log a datalog packet of the given type with the given key-value pairs.	740	Log a datalog packet of the given type with the given key-value pairs.
…		…
390		752
391	#############################################################################	753	#############################################################################
392		754
393	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
394		756
395	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
396	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")
397	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
398		760
399	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>
400	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
401	crossfire+).	763	Deliantra).
402		764
403	=over 4	765	=over 4
404		766
405	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
406		768
…		…
450	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
451		813
452	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
453	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
454		816
455	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
456	that are attached at load/instantiate time, thus the need for a name.	818	that are attached at load/instantiate time, thus the need for a name.
457		819
458	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
459		821
460	=over 4	822	=over 4
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
570		932
571	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		937
576	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	939	my $pkg = shift @arg;
578		940
579	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
608	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
609	}	971	}
610		972
611	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
612	} else {	974	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
614	}	976	}
615		977
616	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
617	}	979	}
618		980
…		…
620	if (ref $_[0]) {	982	if (ref $_[0]) {
621	_object_attach @_;	983	_object_attach @_;
622	} else {	984	} else {
623	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
624	}	986	}
		987	_recalc_want;
625	};	988	};
626		989
627	# all those should be optimised	990	# all those should be optimised
628	sub cf::attachable::detach {	991	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
633	reattach ($obj);	996	reattach ($obj);
634	} else {	997	} else {
635	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
636	}	999	}
		1000	_recalc_want;
637	};	1001	};
638		1002
639	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
641		1005
…		…
656	";	1020	";
657	die if $@;	1021	die if $@;
658	}	1022	}
659		1023
660	our $override;	1024	our $override;
661	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?
662		1026
663	sub override {	1027	sub override {
664	$override = 1;	1028	$override = 1;
665	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
666	}	1030	}
667		1031
668	sub do_invoke {	1032	sub do_invoke {
669	my $event = shift;	1033	my $event = shift;
670	my $callbacks = shift;	1034	my $callbacks = shift;
671		1035
672	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
673		1037
674	local $override;	1038	local $override;
675		1039
676	for (@$callbacks) {	1040	for (@$callbacks) {
677	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
686	}	1050	}
687		1051
688	0	1052	0
689	}	1053	}
690		1054
691	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
692		1056
693	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
694		1058
695	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
696		1060
697	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
698	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
699	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
700		1064
701	=back	1065	=back
702		1066
703	=cut	1067	=cut
704		1068
705	#############################################################################	1069	#############################################################################
706	# 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, $ob2
		1112	}
707		1113
708	sub reattach {	1114	sub reattach {
709	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
710	my ($obj) = @_;	1116	my ($obj) = @_;
711		1117
		1118	# no longer needed after getting rid of delete_package?
712	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
713		1120
714	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
715		1122
716	@$registry = ();	1123	@$registry = ();
717		1124
…		…
732	cf::attachable->attach (	1139	cf::attachable->attach (
733	prio => -1000000,	1140	prio => -1000000,
734	on_instantiate => sub {	1141	on_instantiate => sub {
735	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
736		1143
737	$data = from_json $data;	1144	$data = decode_json $data;
738		1145
739	for (@$data) {	1146	for (@$data) {
740	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
741		1148
742	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
758	sub object_freezer_save {	1165	sub object_freezer_save {
759	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
760		1167
761	sync_job {	1168	sync_job {
762	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
763	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
764	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
765		1173
766	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
767	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
768	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
769	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	}
770	close $fh;	1181	aio_close $fh;
771		1182
772	if (@$objs) {	1183	if (@$objs) {
773	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) {
774	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
775	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
776	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
777	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	}
778	close $fh;	1192	aio_close $fh;
779	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
780	}	1194	}
781	} else {	1195	} else {
782	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
783	}	1197	}
784		1198
785	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
786	} else {	1203	} else {
787	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
788	}	1205	}
789	} else {	1206	} else {
790	aio_unlink $filename;	1207	aio_unlink $filename;
791	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
792	}	1209	}
793	}	1210	};
794	}	1211	}
795		1212
796	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
797	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
798		1215
…		…
810	or return;	1227	or return;
811		1228
812	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
813	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
814	or return;	1231	or return;
		1232
815	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
816	}	1235	}
817		1236
		1237	utf8::decode (my $decname = $filename);
818	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
820	return ($data, $av);	1241	($data, $av)
821	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
822		1249
823	#############################################################################	1250	#############################################################################
824	# command handling &c	1251	# command handling &c
825		1252
826	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1267	}
841		1268
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1270
844	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.
845		1276
846	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
847	called.	1278	called.
848		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
849	=cut	1291	=cut
850		1292
851	sub register_extcmd {	1293	sub register_extcmd {
852	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
853		1295
854	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
855	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
856		1306
857	cf::player->attach (	1307	cf::player->attach (
858	on_command => sub {	1308	on_command => sub {
859	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
860		1310
…		…
868	cf::override;	1318	cf::override;
869	},	1319	},
870	on_extcmd => sub {	1320	on_extcmd => sub {
871	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
872		1322
873	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
874		1324
875	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
876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
877	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
878	$pl->ext_reply ($msg->{msgid}, %reply);
879	}
880	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
881	} else {	1340	} else {
882	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
883	}	1342	}
884		1343
885	cf::override;	1344	cf::override;
886	},	1345	},
887	);	1346	);
888		1347
		1348	# "readahead" all extensions
889	sub load_extension {	1349	sub cache_extensions {
890	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
891		1351
892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
893	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
894	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
895	$pkg =~ s/[^[:word:]]/_/g;
896	$pkg = "ext::$pkg";
897
898	warn "... loading '$path' into '$pkg'\n";
899
900	open my $fh, "<:utf8", $path
901	or die "$path: $!";
902
903	my $source =
904	"package $pkg; use strict; use utf8;\n"
905	. "#line 1 \"$path\"\n{\n"
906	. (do { local $/; <$fh> })
907	. "\n};\n1";
908
909	unless (eval $source) {
910	my $msg = $@ ? "$path: $@\n"
911	: "extension disabled.\n";
912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
913	warn $@;
914	warn "mandatory extension failed to load, exiting.\n";
915	exit 1;
916	}	1355	}
917	die $@;
918	}	1356	};
919		1357
920	push @EXTS, $pkg;	1358	$grp
921	}	1359	}
922		1360
923	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
924	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1366	next unless -r $path;
926	eval {	1367
927	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	$progress = 1;
928	1	1424	}
929	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
930	}	1430	};
931	}	1431	}
932		1432
933	#############################################################################	1433	#############################################################################
934		1434
		1435	=back
		1436
935	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
936		1438
937	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
938		1440
939	=cut	1441	=cut
940		1442
941	package cf::player;	1443	package cf::player;
942		1444
…		…
944		1446
945	=head3 cf::player	1447	=head3 cf::player
946		1448
947	=over 4	1449	=over 4
948		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
949	=item cf::player::find $login	1465	=item cf::player::find $login
950		1466
951	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
952		1468
953	=cut	1469	=cut
954		1470
955	sub playerdir($) {	1471	sub playerdir($) {
956	cf::localdir	1472	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1473	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1474	}
962		1475
963	sub path($) {	1476	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1477	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
974		1487
975	sub exists($) {	1488	sub exists($) {
976	my ($login) = @_;	1489	my ($login) = @_;
977		1490
978	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
979	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
980	}	1493	}
981		1494
982	sub find($) {	1495	sub find($) {
983	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
984	my $login = $_[0];	1497	my $login = $_[0];
…		…
991	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
992	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
993	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
994	aio_unlink +(playerdir $login) . "/$login.pl";	1507	aio_unlink +(playerdir $login) . "/$login.pl";
995		1508
996	my $pl = load_pl path $login	1509	my $f = new_from_file cf::object::thawer path $login
997	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;
998	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
999	}	1518	}
1000	}	1519	}
1001	}	1520	}
1002		1521
…		…
1011	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1012		1531
1013	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1014	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1015		1534
		1535	cf::get_slot 0.01;
		1536
1016	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1017	Coro::cede;	1538	cf::cede_to_tick;
1018	}	1539	}
1019		1540
1020	sub new($) {	1541	sub new($) {
1021	my ($login) = @_;	1542	my ($login) = @_;
1022		1543
…		…
1028	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1029		1550
1030	$self	1551	$self
1031	}	1552	}
1032		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
1033	=item $pl->quit_character	1564	=item $pl->quit_character
1034		1565
1035	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1036	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1037		1568
…		…
1041	my ($pl) = @_;	1572	my ($pl) = @_;
1042		1573
1043	my $name = $pl->ob->name;	1574	my $name = $pl->ob->name;
1044		1575
1045	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1046	$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
1047		1578
1048	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1049	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1050	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1051	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1052		1585
1053	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1054	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1084	while and may block, so not sync_job-capable, ever.	1617	while and may block, so not sync_job-capable, ever.
1085		1618
1086	=cut	1619	=cut
1087		1620
1088	sub list_logins {	1621	sub list_logins {
1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1622	my $dirs = aio_readdir $PLAYERDIR
1090	or return [];	1623	or return [];
1091		1624
1092	my @logins;	1625	my @logins;
1093		1626
1094	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") {
1095	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1096	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1097	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1098		1637
1099	utf8::decode $login;	1638	utf8::decode $login;
1100	push @logins, $login;	1639	push @logins, $login;
1101	}	1640	}
1102		1641
…		…
1129	}	1668	}
1130		1669
1131	\@paths	1670	\@paths
1132	}	1671	}
1133		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1134	=item $player->ext_reply ($msgid, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1135		1678
1136	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1137		1680
1138	=cut	1681	=cut
1139		1682
1140	sub ext_reply($$%) {	1683	sub ext_reply($$@) {
1141	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1142		1685
1143	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1144
1145	$self->send ("ext " . cf::to_json \%msg);
1146	}	1687	}
1147		1688
1148	=item $player->ext_event ($type, %msg)	1689	=item $player->ext_msg ($type, @msg)
1149		1690
1150	Sends an ext event to the client.	1691	Sends an ext event to the client.
1151		1692
1152	=cut	1693	=cut
1153		1694
1154	sub ext_event($$%) {	1695	sub ext_msg($$@) {
1155	my ($self, $type, %msg) = @_;	1696	my ($self, $type, @msg) = @_;
1156		1697
1157	$self->ns->ext_event ($type, %msg);	1698	$self->ns->ext_msg ($type, @msg);
1158	}	1699	}
1159		1700
1160	=head3 cf::region	1701	=head3 cf::region
1161		1702
1162	=over 4	1703	=over 4
…		…
1165		1706
1166	package cf::region;	1707	package cf::region;
1167		1708
1168	=item cf::region::find_by_path $path	1709	=item cf::region::find_by_path $path
1169		1710
1170	Tries to decuce the probable region for a map knowing only its path.	1711	Tries to decuce the likely region for a map knowing only its path.
1171		1712
1172	=cut	1713	=cut
1173		1714
1174	sub find_by_path($) {	1715	sub find_by_path($) {
1175	my ($path) = @_;	1716	my ($path) = @_;
1176		1717
1177	my ($match, $specificity);	1718	my ($match, $specificity);
1178		1719
1179	for my $region (list) {	1720	for my $region (list) {
1180	if ($region->match && $path =~ $region->match) {	1721	if ($region->{match} && $path =~ $region->{match}) {
1181	($match, $specificity) = ($region, $region->specificity)	1722	($match, $specificity) = ($region, $region->specificity)
1182	if $region->specificity > $specificity;	1723	if $region->specificity > $specificity;
1183	}	1724	}
1184	}	1725	}
1185		1726
…		…
1206	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1207	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1208		1749
1209	sub generate_random_map {	1750	sub generate_random_map {
1210	my ($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
1211	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1212	$self->_create_random_map (	1756	$self->_create_random_map (
1213	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1214	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1215	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1249	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1250		1794
1251	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1252	local $self->{path};	1796	local $self->{path};
1253	local $self->{load_path};	1797	local $self->{load_path};
1254	local $self->{deny_save};
1255	local $self->{deny_reset};
1256		1798
1257	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1258	}	1800	}
1259		1801
1260	sub normalise {	1802	sub normalise {
…		…
1307	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1308	return $self;	1850	return $self;
1309	}	1851	}
1310	}	1852	}
1311		1853
1312	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1313	()	1855	()
1314	}	1856	}
1315		1857
1316	sub init {	1858	sub init {
1317	my ($self) = @_;	1859	my ($self) = @_;
…		…
1332		1874
1333	# the original (read-only) location	1875	# the original (read-only) location
1334	sub load_path {	1876	sub load_path {
1335	my ($self) = @_;	1877	my ($self) = @_;
1336		1878
1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1879	"$MAPDIR/$self->{path}.map"
1338	}	1880	}
1339		1881
1340	# the temporary/swap location	1882	# the temporary/swap location
1341	sub save_path {	1883	sub save_path {
1342	my ($self) = @_;	1884	my ($self) = @_;
1343		1885
1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1887	"$TMPDIR/$path.map"
1346	}	1888	}
1347		1889
1348	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1349	sub uniq_path {	1891	sub uniq_path {
1350	my ($self) = @_;	1892	my ($self) = @_;
1351		1893
1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1895	"$UNIQUEDIR/$path"
1354	}	1896	}
1355		1897
1356	# and all this just because we cannot iterate over	1898	sub decay_objects {
1357	# all maps in C++...
1358	sub change_all_map_light {
1359	my ($change) = @_;	1899	my ($self) = @_;
1360		1900
1361	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1362	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1363	}	1904	}
1364		1905
1365	sub unlink_save {	1906	sub unlink_save {
1366	my ($self) = @_;	1907	my ($self) = @_;
1367		1908
…		…
1372		1913
1373	sub load_header_from($) {	1914	sub load_header_from($) {
1374	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1375		1916
1376	utf8::encode $path;	1917	utf8::encode $path;
1377	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1378	# or return;
1379
1380	$self->_load_header ($path)
1381	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;
1382		1926
1383	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1384		1928
1385	1	1929	1
1386	}	1930	}
…		…
1425	$self->load_header_orig	1969	$self->load_header_orig
1426	or return;	1970	or return;
1427	$self->prepare_orig;	1971	$self->prepare_orig;
1428	}	1972	}
1429		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
1430	$self->default_region (cf::region::find_by_path $self->{path})	1977	$self->default_region (cf::region::find_by_path $self->{path})
1431	unless $self->default_region;	1978	unless $self->default_region;
1432		1979
1433	1	1980	1
1434	}	1981	}
…		…
1437	sub find {	1984	sub find {
1438	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1439		1986
1440	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1441		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1442	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1443		1991
1444	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1445	my $guard = cf::lock_acquire "map_find:$path";
1446	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1447	or return;	1994	or return;
1448		1995
1449	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1450		1997
1451	$map->load_header	1998	$map->load_header
1452	or return;	1999	or return;
1453		2000
1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1455	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1456	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1457	$map->reset;	2006	$map->reset;
1458	undef $guard;
1459	return find $path;	2007	return find $path;
1460	}	2008	}
1461		2009
1462	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1463	}	2011	}
…		…
1470	my ($self) = @_;	2018	my ($self) = @_;
1471		2019
1472	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1473		2021
1474	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1475	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1476		2026
		2027	return unless $self->valid;
1477	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1478		2029
1479	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1480		2031
1481	$self->alloc;	2032	$self->alloc;
1482		2033
1483	$self->pre_load;	2034	$self->pre_load;
1484	Coro::cede;	2035	cf::cede_to_tick;
1485		2036
1486	$self->_load_objects ($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)
1487	or return;	2040	or return;
1488		2041
1489	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1490	if delete $self->{load_original};	2043	if delete $self->{load_original};
1491		2044
1492	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1493	utf8::encode $uniq;	2046	utf8::encode $uniq;
1494	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1495	$self->clear_unique_items;	2049	$self->clear_unique_items;
1496	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1497	}	2053	}
1498	}	2054	}
1499		2055
1500	Coro::cede;	2056	$f->resolve_delayed_derefs;
		2057
		2058	cf::cede_to_tick;
1501	# now do the right thing for maps	2059	# now do the right thing for maps
1502	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1503	Coro::cede;
1504
1505	unless ($self->{deny_activate}) {
1506	$self->decay_objects;
1507	$self->fix_auto_apply;
1508	$self->update_buttons;
1509	Coro::cede;
1510	$self->set_darkness_map;
1511	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1512	unless $self->difficulty;	2062	unless $self->difficulty;
1513	Coro::cede;	2063	cf::cede_to_tick;
		2064
		2065	unless ($self->{deny_activate}) {
		2066	$self->decay_objects;
		2067	$self->fix_auto_apply;
		2068	$self->update_buttons;
		2069	cf::cede_to_tick;
1514	$self->activate;	2070	$self->activate;
1515	Coro::cede;	2071	}
		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
		2076	$self->in_memory (cf::MAP_ACTIVE);
1516	}	2077	}
1517		2078
1518	$self->post_load;	2079	$self->post_load;
1519	Coro::cede;
1520
1521	$self->in_memory (cf::MAP_IN_MEMORY);
1522	}	2080	}
1523		2081
1524	sub customise_for {	2082	sub customise_for {
1525	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1526		2084
1527	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1528	if $self->per_player;	2086	if $self->per_player;
1529		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1530	$self	2091	$self
1531	}	2092	}
1532		2093
1533	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1534	sub load_diag {	2095	sub load_neighbours {
1535	my ($map) = @_;	2096	my ($map) = @_;
1536		2097
1537	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1538		2099
1539	for (0 .. 3) {	2100	for (0 .. 3) {
1540	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1541	or next;	2102	or next;
1542	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1543	or next;	2104	or next;
1544	$neigh->load;	2105	$neigh->load;
1545		2106
		2107	push @neigh,
1546	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1547	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1548	}	2110	}
1549		2111
1550	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1551	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1552	or next;	2115	or next;
1553	$neigh->load;	2116	$neigh->load;
1554	}	2117	}
1555	}	2118	}
1556		2119
…		…
1561	}	2124	}
1562		2125
1563	sub do_load_sync {	2126	sub do_load_sync {
1564	my ($map) = @_;	2127	my ($map) = @_;
1565		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1566	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1567	}	2133	}
1568		2134
1569	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1570	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1571		2137
1572	sub find_async {	2138	sub find_async {
1573	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1574		2140
1575	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1576		2142
1577	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1578	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1579	}	2145	}
1580		2146
1581	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1582	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1583	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1584	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1585	my $map = find $path	2154	if (my $map = find $k) {
1586	or next;
1587	$map->load;	2155	$map->load if $v;
		2156	}
1588		2157
1589	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1590	}	2159	}
1591	}	2160	}
1592	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1593	};	2162	};
1594	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1597	}	2166	}
1598		2167
1599	sub save {	2168	sub save {
1600	my ($self) = @_;	2169	my ($self) = @_;
1601		2170
1602	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1603		2172
1604	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1605		2174
1606	return unless $self->dirty;	2175	return unless $self->dirty;
1607		2176
…		…
1613	return if $self->{deny_save};	2182	return if $self->{deny_save};
1614		2183
1615	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1616		2185
1617	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1618	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1619	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1620		2192
1621	if ($uniq) {	2193	if ($uniq) {
1622	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1623	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1624	} else {	2196	} else {
…		…
1630	my ($self) = @_;	2202	my ($self) = @_;
1631		2203
1632	# save first because save cedes	2204	# save first because save cedes
1633	$self->save;	2205	$self->save;
1634		2206
1635	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1636		2208
1637	return if $self->players;	2209	return if $self->players;
1638	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1639	return if $self->{deny_save};	2211	return if $self->{deny_save};
1640		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1641	$self->clear;	2217	$self->clear;
1642	$self->in_memory (cf::MAP_SWAPPED);
1643	}	2218	}
1644		2219
1645	sub reset_at {	2220	sub reset_at {
1646	my ($self) = @_;	2221	my ($self) = @_;
1647		2222
1648	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1649	return 1e99 if $self->isa ("ext::map_per_player");#d#
1650	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1651		2225
1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1654		2228
…		…
1665	my ($self) = @_;	2239	my ($self) = @_;
1666		2240
1667	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1668		2242
1669	return if $self->players;	2243	return if $self->players;
1670	return if $self->isa ("ext::map_per_player");#d#
1671		2244
1672	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
1673		2246
1674	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->in_memory (cf::MAP_SWAPPED);
1675		2248
1676	# need to save uniques path	2249	# need to save uniques path
1677	unless ($self->{deny_save}) {	2250	unless ($self->{deny_save}) {
…		…
1681	if $uniq;	2254	if $uniq;
1682	}	2255	}
1683		2256
1684	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1685		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1686	$self->clear;	2261	$self->clear;
1687
1688	$_->clear_links_to ($self) for values %cf::MAP;
1689		2262
1690	$self->unlink_save;	2263	$self->unlink_save;
1691	$self->destroy;	2264	$self->destroy;
1692	}	2265	}
1693		2266
1694	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1695		2268
1696	sub nuke {	2269	sub nuke {
1697	my ($self) = @_;	2270	my ($self) = @_;
1698		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1699	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1700		2276
1701	$self->unlink_save;	2277	$self->unlink_save;
1702		2278
1703	bless $self, "cf::map";	2279	bless $self, "cf::map";
1704	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1705	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1706	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1707	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1708		2284
1709	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1710		2287
1711	$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	]
1712	}	2325	}
1713		2326
1714	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1715		2328
1716	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1717	instantiated unique items. May block.	2330	instantiated unique items. May block.
1718		2331
1719	=cut	2332	=cut
1720		2333
1721	sub unique_maps() {	2334	sub unique_maps() {
1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2335	[
1723	or return;	2336	map {
1724
1725	my @paths;
1726
1727	for (@$files) {
1728	utf8::decode $_;	2337	utf8::decode $_;
1729	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1730	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1731		2340	? ()
1732	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1733	}	2343	]
1734
1735	\@paths
1736	}	2344	}
1737		2345
1738	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	}
1739		2376
1740	=back	2377	=back
1741		2378
1742	=head3 cf::object	2379	=head3 cf::object
1743		2380
…		…
1747		2384
1748	=over 4	2385	=over 4
1749		2386
1750	=item $ob->inv_recursive	2387	=item $ob->inv_recursive
1751		2388
1752	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.
1753		2391
1754	=cut	2392	=cut
1755		2393
1756	sub inv_recursive_;	2394	sub inv_recursive_;
1757	sub inv_recursive_ {	2395	sub inv_recursive_ {
…		…
1760		2398
1761	sub inv_recursive {	2399	sub inv_recursive {
1762	inv_recursive_ inv $_[0]	2400	inv_recursive_ inv $_[0]
1763	}	2401	}
1764		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
1765	package cf;	2431	package cf;
1766		2432
1767	=back	2433	=back
1768		2434
1769	=head3 cf::object::player	2435	=head3 cf::object::player
…		…
1775	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>
1776	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
1777	dialogue with the given NPC character.	2443	dialogue with the given NPC character.
1778		2444
1779	=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	};
1780		2460
1781	# rough implementation of a future "reply" method that works	2461	# rough implementation of a future "reply" method that works
1782	# with dialog boxes.	2462	# with dialog boxes.
1783	#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
1784	sub cf::object::player::reply($$$;$) {	2464	sub cf::object::player::reply($$$;$) {
…		…
1786		2466
1787	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2467	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1788		2468
1789	if ($self->{record_replies}) {	2469	if ($self->{record_replies}) {
1790	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2470	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2471
1791	} 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 {
1792	$msg = $npc->name . " says: $msg" if $npc;	2480	$msg = $npc->name . " says: $msg" if $npc;
1793	$self->message ($msg, $flags);	2481	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2482	}
1794	}	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 (@_);
1795	}	2494	}
1796		2495
1797	=item $player_object->may ("access")	2496	=item $player_object->may ("access")
1798		2497
1799	Returns wether the given player is authorized to access resource "access"	2498	Returns wether the given player is authorized to access resource "access"
…		…
1812		2511
1813	=item $player_object->enter_link	2512	=item $player_object->enter_link
1814		2513
1815	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}>).
1816		2515
1817	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.
1818	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.
1819		2520
1820	Will never block.	2521	Will never block.
1821		2522
1822	=item $player_object->leave_link ($map, $x, $y)	2523	=item $player_object->leave_link ($map, $x, $y)
1823		2524
…		…
1846	$self->deactivate_recursive;	2547	$self->deactivate_recursive;
1847		2548
1848	return if UNIVERSAL::isa $self->map, "ext::map_link";	2549	return if UNIVERSAL::isa $self->map, "ext::map_link";
1849		2550
1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2551	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1851	if $self->map;	2552	if $self->map && $self->map->{path} ne "{link}";
1852		2553
1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2554	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1854	}	2555	}
1855		2556
1856	sub cf::object::player::leave_link {	2557	sub cf::object::player::leave_link {
1857	my ($self, $map, $x, $y) = @_;	2558	my ($self, $map, $x, $y) = @_;
		2559
		2560	return unless $self->contr->active;
1858		2561
1859	my $link_pos = delete $self->{_link_pos};	2562	my $link_pos = delete $self->{_link_pos};
1860		2563
1861	unless ($map) {	2564	unless ($map) {
1862	# restore original map position	2565	# restore original map position
…		…
1876	# use -1 or undef as default coordinates, not 0, 0	2579	# use -1 or undef as default coordinates, not 0, 0
1877	($x, $y) = ($map->enter_x, $map->enter_y)	2580	($x, $y) = ($map->enter_x, $map->enter_y)
1878	if $x <=0 && $y <= 0;	2581	if $x <=0 && $y <= 0;
1879		2582
1880	$map->load;	2583	$map->load;
1881	$map->load_diag;	2584	$map->load_neighbours;
1882		2585
1883	return unless $self->contr->active;	2586	return unless $self->contr->active;
1884	$self->activate_recursive;
1885		2587
1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2588	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1887	$self->enter_map ($map, $x, $y);	2589	$self->enter_map ($map, $x, $y);
1888	}
1889		2590
1890	cf::player->attach (	2591	# only activate afterwards, to support waiting in hooks
1891	on_logout => sub {	2592	$self->activate_recursive;
1892	my ($pl) = @_;	2593	}
1893		2594
1894	# abort map switching before logout	2595	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1895	if ($pl->ob->{_link_pos}) {
1896	cf::sync_job {
1897	$pl->ob->leave_link
1898	};
1899	}
1900	},
1901	on_login => sub {
1902	my ($pl) = @_;
1903		2596
1904	# try to abort aborted map switching on player login :)	2597	Moves the player to the given map-path and coordinates by first freezing
1905	# should happen only on crashes	2598	her, loading and preparing them map, calling the provided $check callback
1906	if ($pl->ob->{_link_pos}) {	2599	that has to return the map if sucecssful, and then unfreezes the player on
1907	$pl->ob->enter_link;	2600	the new (success) or old (failed) map position. In either case, $done will
1908	(async {	2601	be called at the end of this process.
1909	$pl->ob->reply (undef,
1910	"There was an internal problem at your last logout, "
1911	. "the server will try to bring you to your intended destination in a second.",
1912	cf::NDI_RED);
1913	# we need this sleep as the login has a concurrent enter_exit running
1914	# and this sleep increases chances of the player not ending up in scorn
1915	Coro::Timer::sleep 1;
1916	$pl->ob->leave_link;
1917	})->prio (2);
1918	}
1919	},
1920	);
1921		2602
1922	=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 >>.
1923		2605
1924	=cut	2606	=cut
		2607
		2608	our $GOTOGEN;
1925		2609
1926	sub cf::object::player::goto {	2610	sub cf::object::player::goto {
1927	my ($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;
1928		2615
1929	$self->enter_link;	2616	$self->enter_link;
1930		2617
1931	(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
1932	my $map = eval {	2640	my $map = eval {
1933	my $map = cf::map::find $path;	2641	my $map = defined $path ? cf::map::find $path : undef;
		2642
		2643	if ($map) {
1934	$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
1935	$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 $@;
1936	} or	2656	}
1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1938		2657
		2658	if ($gen == $self->{_goto_generation}) {
		2659	delete $self->{_goto_generation};
1939	$self->leave_link ($map, $x, $y);	2660	$self->leave_link ($map, $x, $y);
		2661	}
		2662
		2663	$done->() if $done;
1940	})->prio (1);	2664	})->prio (1);
1941	}	2665	}
1942		2666
1943	=item $player_object->enter_exit ($exit_object)	2667	=item $player_object->enter_exit ($exit_object)
1944		2668
…		…
1964	}	2688	}
1965		2689
1966	sub prepare_random_map {	2690	sub prepare_random_map {
1967	my ($exit) = @_;	2691	my ($exit) = @_;
1968		2692
1969	my $guard = cf::lock_acquire "exit_prepare:$exit";
1970
1971	# all this does is basically replace the /! path by	2693	# all this does is basically replace the /! path by
1972	# a new random map path (?random/...) with a seed	2694	# a new random map path (?random/...) with a seed
1973	# that depends on the exit object	2695	# that depends on the exit object
1974		2696
1975	my $rmp = parse_random_map_params $exit->msg;	2697	my $rmp = parse_random_map_params $exit->msg;
…		…
1977	if ($exit->map) {	2699	if ($exit->map) {
1978	$rmp->{region} = $exit->region->name;	2700	$rmp->{region} = $exit->region->name;
1979	$rmp->{origin_map} = $exit->map->path;	2701	$rmp->{origin_map} = $exit->map->path;
1980	$rmp->{origin_x} = $exit->x;	2702	$rmp->{origin_x} = $exit->x;
1981	$rmp->{origin_y} = $exit->y;	2703	$rmp->{origin_y} = $exit->y;
		2704
		2705	$exit->map->touch;
1982	}	2706	}
1983		2707
1984	$rmp->{random_seed} ||= $exit->random_seed;	2708	$rmp->{random_seed} ||= $exit->random_seed;
1985		2709
1986	my $data = cf::to_json $rmp;	2710	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1987	my $md5 = Digest::MD5::md5_hex $data;	2711	my $md5 = Digest::MD5::md5_hex $data;
1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2712	my $meta = "$RANDOMDIR/$md5.meta";
1989		2713
1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2714	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1991	aio_write $fh, 0, (length $data), $data, 0;	2715	aio_write $fh, 0, (length $data), $data, 0;
1992	undef $fh;	2716	undef $fh;
1993	aio_rename "$meta~", $meta;	2717	aio_rename "$meta~", $meta;
1994		2718
		2719	my $slaying = "?random/$md5";
		2720
		2721	if ($exit->valid) {
1995	$exit->slaying ("?random/$md5");	2722	$exit->slaying ("?random/$md5");
1996	$exit->msg (undef);	2723	$exit->msg (undef);
		2724	}
1997	}	2725	}
1998	}	2726	}
1999		2727
2000	sub cf::object::player::enter_exit {	2728	sub cf::object::player::enter_exit {
2001	my ($self, $exit) = @_;	2729	my ($self, $exit) = @_;
2002		2730
2003	return unless $self->type == cf::PLAYER;	2731	return unless $self->type == cf::PLAYER;
2004		2732
2005	if ($exit->slaying eq "/!") {
2006	#TODO: this should de-fi-ni-te-ly not be a sync-job
2007	# the problem is that $exit might not survive long enough
2008	# so it needs to be done right now, right here
2009	cf::sync_job { prepare_random_map $exit };
2010	}
2011
2012	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2013	my $hp = $exit->stats->hp;
2014	my $sp = $exit->stats->sp;
2015
2016	$self->enter_link;	2733	$self->enter_link;
2017		2734
2018	(async {	2735	(async {
2019	$self->deactivate_recursive; # just to be sure	2736	$Coro::current->{desc} = "enter_exit";
		2737
2020	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
2021	$self->goto ($slaying, $hp, $sp);	2753	$self->goto ($map, $x, $y);
2022		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
2023	1;	2759	1
2024	}) {	2760	}) {
2025	$self->message ("Something went wrong deep within the crossfire server. "	2761	$self->message ("Something went wrong deep within the deliantra server. "
2026	. "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. "
2027	. "Please report this to the dungeon master!",	2763	. "Please report this to the dungeon master!",
2028	cf::NDI_UNIQUE | cf::NDI_RED);	2764	cf::NDI_UNIQUE | cf::NDI_RED);
2029		2765
2030	warn "ERROR in enter_exit: $@";	2766	warn "ERROR in enter_exit: $@";
…		…
2049		2785
2050	utf8::encode $text;	2786	utf8::encode $text;
2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2787	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2052	}	2788	}
2053		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
2054	=item $client->ext_event ($type, %msg)	2962	=item $client->ext_msg ($type, @msg)
2055		2963
2056	Sends an exti event to the client.	2964	Sends an ext event to the client.
2057		2965
2058	=cut	2966	=cut
2059		2967
2060	sub cf::client::ext_event($$%) {	2968	sub cf::client::ext_msg($$@) {
2061	my ($self, $type, %msg) = @_;	2969	my ($self, $type, @msg) = @_;
2062		2970
		2971	if ($self->extcmd == 2) {
		2972	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2973	} elsif ($self->extcmd == 1) { # TODO: remove
2063	$msg{msgtype} = "event_$type";	2974	push @msg, msgtype => "event_$type";
2064	$self->send_packet ("ext " . cf::to_json \%msg);	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	}
2065	}	2995	}
2066		2996
2067	=item $success = $client->query ($flags, "text", \&cb)	2997	=item $success = $client->query ($flags, "text", \&cb)
2068		2998
2069	Queues a query to the client, calling the given callback with	2999	Queues a query to the client, calling the given callback with
2070	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>,
2071	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>.
2072		3002
2073	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
2074	reliable at some point in the future.	3004	become reliable at some point in the future.
2075		3005
2076	=cut	3006	=cut
2077		3007
2078	sub cf::client::query {	3008	sub cf::client::query {
2079	my ($self, $flags, $text, $cb) = @_;	3009	my ($self, $flags, $text, $cb) = @_;
…		…
2087	utf8::encode $text;	3017	utf8::encode $text;
2088	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3018	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2089		3019
2090	$self->send_packet ($self->{query_queue}[0][0])	3020	$self->send_packet ($self->{query_queue}[0][0])
2091	if @{ $self->{query_queue} } == 1;	3021	if @{ $self->{query_queue} } == 1;
		3022
		3023	1
2092	}	3024	}
2093		3025
2094	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	},
2095	on_reply => sub {	3032	on_reply => sub {
2096	my ($ns, $msg) = @_;	3033	my ($ns, $msg) = @_;
2097		3034
2098	# this weird shuffling is so that direct followup queries	3035	# this weird shuffling is so that direct followup queries
2099	# get handled first	3036	# get handled first
…		…
2111	} else {	3048	} else {
2112	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3049	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2113	}	3050	}
2114	}	3051	}
2115	},	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	},
2116	);	3079	);
2117		3080
2118	=item $client->async (\&cb)	3081	=item $client->async (\&cb)
2119		3082
2120	Create a new coroutine, running the specified callback. The coroutine will	3083	Create a new coroutine, running the specified callback. The coroutine will
…		…
2161	our $safe = new Safe "safe";	3124	our $safe = new Safe "safe";
2162	our $safe_hole = new Safe::Hole;	3125	our $safe_hole = new Safe::Hole;
2163		3126
2164	$SIG{FPE} = 'IGNORE';	3127	$SIG{FPE} = 'IGNORE';
2165		3128
2166	$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	));
2167		3134
2168	# here we export the classes and methods available to script code	3135	# here we export the classes and methods available to script code
2169		3136
2170	=pod	3137	=pod
2171		3138
2172	The following functions and methods are available within a safe environment:	3139	The following functions and methods are available within a safe environment:
2173		3140
2174	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
2175	cf::object::player player	3146	cf::object::player
2176	cf::player peaceful	3147	player
2177	cf::map trigger	3148
		3149	cf::player
		3150	peaceful
		3151
		3152	cf::map
		3153	trigger
2178		3154
2179	=cut	3155	=cut
2180		3156
2181	for (	3157	for (
2182	["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)],
2183	["cf::object::player" => qw(player)],	3161	["cf::object::player" => qw(player)],
2184	["cf::player" => qw(peaceful)],	3162	["cf::player" => qw(peaceful send_msg)],
2185	["cf::map" => qw(trigger)],	3163	["cf::map" => qw(trigger)],
2186	) {	3164	) {
2187	no strict 'refs';	3165	no strict 'refs';
2188	my ($pkg, @funs) = @$_;	3166	my ($pkg, @funs) = @$_;
2189	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3167	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2206	my ($code, %vars) = @_;	3184	my ($code, %vars) = @_;
2207		3185
2208	my $qcode = $code;	3186	my $qcode = $code;
2209	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3187	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2210	$qcode =~ s/\n/\\n/g;	3188	$qcode =~ s/\n/\\n/g;
		3189
		3190	%vars = (_dummy => 0) unless %vars;
2211		3191
2212	local $_;	3192	local $_;
2213	local @safe::cf::_safe_eval_args = values %vars;	3193	local @safe::cf::_safe_eval_args = values %vars;
2214		3194
2215	my $eval =	3195	my $eval =
…		…
2258	=back	3238	=back
2259		3239
2260	=cut	3240	=cut
2261		3241
2262	#############################################################################	3242	#############################################################################
2263
2264	=head2 EXTENSION DATABASE SUPPORT
2265
2266	Crossfire maintains a very simple database for extension use. It can
2267	currently store anything that can be serialised using Storable, which
2268	excludes objects.
2269
2270	The parameter C<$family> should best start with the name of the extension
2271	using it, it should be unique.
2272
2273	=over 4
2274
2275	=item $value = cf::db_get $family => $key
2276
2277	Returns a single value from the database.
2278
2279	=item cf::db_put $family => $key => $value
2280
2281	Stores the given C<$value> in the family.
2282
2283	=cut
2284
2285	our $DB;
2286
2287	sub db_init {
2288	unless ($DB) {
2289	$DB = BDB::db_create $DB_ENV;
2290
2291	cf::sync_job {
2292	eval {
2293	$DB->set_flags (BDB::CHKSUM);
2294
2295	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2296	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2297	cf::cleanup "db_open(db): $!" if $!;
2298	};
2299	cf::cleanup "db_open(db): $@" if $@;
2300	};
2301
2302	my $path = cf::localdir . "/database.pst";
2303	if (stat $path) {
2304	cf::sync_job {
2305	my $pst = Storable::retrieve $path;
2306
2307	cf::db_put (board => data => $pst->{board});
2308	cf::db_put (guildrules => data => $pst->{guildrules});
2309	cf::db_put (rent => balance => $pst->{rent}{balance});
2310	BDB::db_env_txn_checkpoint $DB_ENV;
2311
2312	unlink $path;
2313	};
2314	}
2315	}
2316	}
2317
2318	sub db_get($$) {
2319	my $key = "$_[0]/$_[1]";
2320
2321	cf::sync_job {
2322	BDB::db_get $DB, undef, $key, my $data;
2323
2324	$! ? ()
2325	: Compress::LZF::sthaw $data
2326	}
2327	}
2328
2329	sub db_put($$$) {
2330	BDB::dbreq_pri 4;
2331	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2332	}
2333
2334	#############################################################################
2335	# the server's init and main functions	3243	# the server's init and main functions
2336		3244
2337	sub load_facedata {	3245	sub load_facedata($) {
2338	my $path = sprintf "%s/facedata", cf::datadir;	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;
2339		3253
2340	warn "loading facedata from $path\n";	3254	warn "loading facedata from $path\n";
2341		3255
2342	my $facedata;	3256	my $facedata;
2343	0 < aio_load $path, $facedata	3257	0 < aio_load $path, $facedata
…		…
2346	$facedata = Coro::Storable::thaw $facedata;	3260	$facedata = Coro::Storable::thaw $facedata;
2347		3261
2348	$facedata->{version} == 2	3262	$facedata->{version} == 2
2349	or cf::cleanup "$path: version mismatch, cannot proceed.";	3263	or cf::cleanup "$path: version mismatch, cannot proceed.";
2350		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
2351	{	3272	{
2352	my $faces = $facedata->{faceinfo};	3273	my $faces = $facedata->{faceinfo};
2353		3274
2354	while (my ($face, $info) = each %$faces) {	3275	while (my ($face, $info) = each %$faces) {
2355	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3276	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3277
2356	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3278	cf::face::set_visibility $idx, $info->{visibility};
		3279	cf::face::set_magicmap $idx, $info->{magicmap};
2357	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3280	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2358	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3281	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2359	Coro::cede;	3282
		3283	cf::cede_to_tick;
2360	}	3284	}
2361		3285
2362	while (my ($face, $info) = each %$faces) {	3286	while (my ($face, $info) = each %$faces) {
2363	next unless $info->{smooth};	3287	next unless $info->{smooth};
		3288
2364	my $idx = cf::face::find $face	3289	my $idx = cf::face::find $face
2365	or next;	3290	or next;
		3291
2366	if (my $smooth = cf::face::find $info->{smooth}) {	3292	if (my $smooth = cf::face::find $info->{smooth}) {
		3293	cf::face::set_smooth $idx, $smooth;
2367	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3294	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2368	} else {	3295	} else {
2369	warn "smooth face '$info->{smooth}' not found for face '$face'";	3296	warn "smooth face '$info->{smooth}' not found for face '$face'";
2370	}	3297	}
2371	Coro::cede;	3298
		3299	cf::cede_to_tick;
2372	}	3300	}
2373	}	3301	}
2374		3302
2375	{	3303	{
2376	my $anims = $facedata->{animinfo};	3304	my $anims = $facedata->{animinfo};
2377		3305
2378	while (my ($anim, $info) = each %$anims) {	3306	while (my ($anim, $info) = each %$anims) {
2379	cf::anim::set $anim, $info->{frames}, $info->{facings};	3307	cf::anim::set $anim, $info->{frames}, $info->{facings};
2380	Coro::cede;	3308	cf::cede_to_tick;
2381	}	3309	}
2382		3310
2383	cf::anim::invalidate_all; # d'oh	3311	cf::anim::invalidate_all; # d'oh
2384	}	3312	}
2385		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
2386	1	3349	1
2387	}	3350	}
2388		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"
		3396	or die "unable to load regions file\n";
		3397
		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
2389	sub reload_resources {	3419	sub reload_resources {
2390	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3420	warn "reloading resource files...\n";
2391	or die "unable to load regions file\n";#d#	3421
2392	load_facedata	3422	reload_facedata;
2393	or die "unable to load facedata\n";#d#	3423	reload_archetypes;
2394	}
2395
2396	sub init {
2397	reload_resources;	3424	reload_regions;
2398	}	3425	reload_treasures;
2399		3426
2400	sub cfg_load {	3427	warn "finished reloading resource files\n";
		3428	}
		3429
		3430	sub reload_config {
		3431	warn "reloading config file...\n";
		3432
2401	open my $fh, "<:utf8", cf::confdir . "/config"	3433	open my $fh, "<:utf8", "$CONFDIR/config"
2402	or return;	3434	or return;
2403		3435
2404	local $/;	3436	local $/;
2405	*CFG = YAML::Syck::Load <$fh>;	3437	*CFG = YAML::XS::Load scalar <$fh>;
2406		3438
2407	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3439	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2408		3440
2409	$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};
2410	$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};
…		…
2414	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3446	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2415	and die "WARNING: m(un)lockall failed: $!\n";	3447	and die "WARNING: m(un)lockall failed: $!\n";
2416	};	3448	};
2417	warn $@ if $@;	3449	warn $@ if $@;
2418	}	3450	}
		3451
		3452	warn "finished reloading resource files\n";
		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;
2419	}	3481	}
2420		3482
2421	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
2422	# we must not ever block the main coroutine	3498	# we must not ever block the main coroutine
2423	local $Coro::idle = sub {	3499	local $Coro::idle = sub {
2424	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#
2425	(async {	3501	(async {
2426	Event::one_event;	3502	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3503	EV::loop EV::LOOP_ONESHOT;
2427	})->prio (Coro::PRIO_MAX);	3504	})->prio (Coro::PRIO_MAX);
2428	};	3505	};
2429		3506
2430	cfg_load;	3507	evthread_start IO::AIO::poll_fileno;
		3508
		3509	cf::sync_job {
		3510	reload_resources;
		3511	reload_config;
2431	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
2432	load_extensions;	3525	load_extensions;
2433		3526
2434	$TICK_WATCHER->start;	3527	utime time, time, $RUNTIMEFILE;
2435	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;
2436	}	3537	}
2437		3538
2438	#############################################################################	3539	#############################################################################
2439	# initialisation and cleanup	3540	# initialisation and cleanup
2440		3541
2441	# install some emergency cleanup handlers	3542	# install some emergency cleanup handlers
2442	BEGIN {	3543	BEGIN {
		3544	our %SIGWATCHER = ();
2443	for my $signal (qw(INT HUP TERM)) {	3545	for my $signal (qw(INT HUP TERM)) {
2444	Event->signal (	3546	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2445	reentrant => 0,
2446	data => WF_AUTOCANCEL,
2447	signal => $signal,
2448	prio => 0,
2449	cb => sub {
2450	cf::cleanup "SIG$signal";	3547	cf::cleanup "SIG$signal";
2451	},
2452	);	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
2453	}	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 };
2454	}	3636	}
2455		3637
2456	sub emergency_save() {	3638	sub emergency_save() {
2457	my $freeze_guard = cf::freeze_mainloop;	3639	my $freeze_guard = cf::freeze_mainloop;
2458		3640
2459	warn "enter emergency perl save\n";	3641	warn "emergency_perl_save: enter\n";
2460		3642
2461	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
2462	# use a peculiar iteration method to avoid tripping on perl	3649	# use a peculiar iteration method to avoid tripping on perl
2463	# refcount bugs in for. also avoids problems with players	3650	# refcount bugs in for. also avoids problems with players
2464	# and maps saved/destroyed asynchronously.	3651	# and maps saved/destroyed asynchronously.
2465	warn "begin emergency player save\n";	3652	warn "emergency_perl_save: begin player save\n";
2466	for my $login (keys %cf::PLAYER) {	3653	for my $login (keys %cf::PLAYER) {
2467	my $pl = $cf::PLAYER{$login} or next;	3654	my $pl = $cf::PLAYER{$login} or next;
2468	$pl->valid or next;	3655	$pl->valid or next;
		3656	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2469	$pl->save;	3657	$pl->save;
2470	}	3658	}
2471	warn "end emergency player save\n";	3659	warn "emergency_perl_save: end player save\n";
2472		3660
2473	warn "begin emergency map save\n";	3661	warn "emergency_perl_save: begin map save\n";
2474	for my $path (keys %cf::MAP) {	3662	for my $path (keys %cf::MAP) {
2475	my $map = $cf::MAP{$path} or next;	3663	my $map = $cf::MAP{$path} or next;
2476	$map->valid or next;	3664	$map->valid or next;
2477	$map->save;	3665	$map->save;
2478	}	3666	}
2479	warn "end emergency map save\n";	3667	warn "emergency_perl_save: end map save\n";
2480		3668
2481	warn "begin emergency database checkpoint\n";	3669	warn "emergency_perl_save: begin database checkpoint\n";
2482	BDB::db_env_txn_checkpoint $DB_ENV;	3670	BDB::db_env_txn_checkpoint $DB_ENV;
2483	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";
2484	};	3676	};
2485		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
2486	warn "leave emergency perl save\n";	3683	warn "emergency_perl_save: leave\n";
2487	}	3684	}
2488		3685
2489	sub post_cleanup {	3686	sub post_cleanup {
2490	my ($make_core) = @_;	3687	my ($make_core) = @_;
2491		3688
2492	warn Carp::longmess "post_cleanup backtrace"	3689	warn Carp::longmess "post_cleanup backtrace"
2493	if $make_core;	3690	if $make_core;
2494	}
2495		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 $pkg\n";#d#
		3720	}
		3721
2496	sub reload() {	3722	sub do_reload_perl() {
2497	# can/must only be called in main	3723	# can/must only be called in main
2498	if ($Coro::current != $Coro::main) {	3724	if ($Coro::current != $Coro::main) {
2499	warn "can only reload from main coroutine";	3725	warn "can only reload from main coroutine";
2500	return;	3726	return;
2501	}	3727	}
2502		3728
		3729	return if $RELOAD++;
		3730
		3731	my $t1 = EV::time;
		3732
		3733	while ($RELOAD) {
2503	warn "reloading...";	3734	warn "reloading...";
2504		3735
2505	warn "entering sync_job";	3736	warn "entering sync_job";
2506		3737
2507	cf::sync_job {	3738	cf::sync_job {
2508	cf::write_runtime; # external watchdog should not bark	3739	cf::write_runtime_sync; # external watchdog should not bark
2509	cf::emergency_save;	3740	cf::emergency_save;
2510	cf::write_runtime; # external watchdog should not bark	3741	cf::write_runtime_sync; # external watchdog should not bark
2511		3742
2512	warn "syncing database to disk";	3743	warn "syncing database to disk";
2513	BDB::db_env_txn_checkpoint $DB_ENV;	3744	BDB::db_env_txn_checkpoint $DB_ENV;
2514		3745
2515	# 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
2516		3747
2517	warn "cancelling all WF_AUTOCANCEL watchers";
2518	for (Event::all_watchers) {
2519	$_->cancel if $_->data & WF_AUTOCANCEL;
2520	}
2521
2522	warn "flushing outstanding aio requests";	3748	warn "flushing outstanding aio requests";
2523	for (;;) {
2524	BDB::flush;
2525	IO::AIO::flush;
2526	Coro::cede;
2527	last unless IO::AIO::nreqs || BDB::nreqs;	3749	while (IO::AIO::nreqs || BDB::nreqs) {
2528	warn "iterate...";	3750	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2529	}
2530
2531	++$RELOAD;
2532
2533	warn "cancelling all extension coros";
2534	$_->cancel for values %EXT_CORO;
2535	%EXT_CORO = ();
2536
2537	warn "removing commands";
2538	%COMMAND = ();
2539
2540	warn "removing ext commands";
2541	%EXTCMD = ();
2542
2543	warn "unloading/nuking all extensions";
2544	for my $pkg (@EXTS) {
2545	warn "... unloading $pkg";
2546
2547	if (my $cb = $pkg->can ("unload")) {
2548	eval {
2549	$cb->($pkg);
2550	1
2551	} or warn "$pkg unloaded, but with errors: $@";
2552	}	3751	}
2553		3752
2554	warn "... nuking $pkg";	3753	warn "cancelling all extension coros";
2555	Symbol::delete_package $pkg;	3754	$_->cancel for values %EXT_CORO;
2556	}	3755	%EXT_CORO = ();
2557		3756
2558	warn "unloading all perl modules loaded from $LIBDIR";	3757	warn "removing commands";
2559	while (my ($k, $v) = each %INC) {	3758	%COMMAND = ();
2560	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2561		3759
		3760	warn "removing ext/exti commands";
		3761	%EXTCMD = ();
		3762	%EXTICMD = ();
		3763
		3764	warn "unloading/nuking all extensions";
		3765	for my $pkg (@EXTS) {
2562	warn "... unloading $k";	3766	warn "... unloading $pkg";
2563	delete $INC{$k};
2564		3767
2565	$k =~ s/\.pm$//;
2566	$k =~ s/\//::/g;
2567
2568	if (my $cb = $k->can ("unload_module")) {	3768	if (my $cb = $pkg->can ("unload")) {
		3769	eval {
2569	$cb->();	3770	$cb->($pkg);
		3771	1
		3772	} or warn "$pkg unloaded, but with errors: $@";
		3773	}
		3774
		3775	warn "... clearing $pkg";
		3776	clear_package $pkg;
2570	}	3777	}
2571		3778
2572	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 $k;
2573	}	3794	}
2574		3795
2575	warn "getting rid of safe::, as good as possible";	3796	warn "getting rid of safe::, as good as possible";
2576	Symbol::delete_package "safe::$_"	3797	clear_package "safe::$_"
2577	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);
2578		3799
2579	warn "unloading cf.pm \"a bit\"";	3800	warn "unloading cf.pm \"a bit\"";
2580	delete $INC{"cf.pm"};	3801	delete $INC{"cf.pm"};
		3802	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2581		3803
2582	# don't, removes xs symbols, too,	3804	# don't, removes xs symbols, too,
2583	# and global variables created in xs	3805	# and global variables created in xs
2584	#Symbol::delete_package __PACKAGE__;	3806	#clear_package __PACKAGE__;
2585		3807
2586	warn "unload completed, starting to reload now";	3808	warn "unload completed, starting to reload now";
2587		3809
2588	warn "reloading cf.pm";	3810	warn "reloading cf.pm";
2589	require cf;	3811	require cf;
2590	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3812	cf::_connect_to_perl_1;
2591		3813
2592	warn "loading config and database again";	3814	warn "loading config and database again";
2593	cf::cfg_load;	3815	cf::reload_config;
2594		3816
2595	warn "loading extensions";	3817	warn "loading extensions";
2596	cf::load_extensions;	3818	cf::load_extensions;
2597		3819
		3820	if ($REATTACH_ON_RELOAD) {
2598	warn "reattaching attachments to objects/players";	3821	warn "reattaching attachments to objects/players";
2599	_global_reattach; # objects, sockets	3822	_global_reattach; # objects, sockets
2600	warn "reattaching attachments to maps";	3823	warn "reattaching attachments to maps";
2601	reattach $_ for values %MAP;	3824	reattach $_ for values %MAP;
2602	warn "reattaching attachments to players";	3825	warn "reattaching attachments to players";
2603	reattach $_ for values %PLAYER;	3826	reattach $_ for values %PLAYER;
		3827	}
2604		3828
2605	warn "loading reloadable resources";	3829	warn "running post_init jobs";
2606	reload_resources;	3830	(pop @POST_INIT)->(1) while @POST_INIT;
2607		3831
2608	warn "leaving sync_job";	3832	warn "leaving sync_job";
2609		3833
2610	1	3834	1
2611	} or do {	3835	} or do {
2612	warn $@;	3836	warn $@;
2613	warn "error while reloading, exiting.";	3837	cf::cleanup "error while reloading, exiting.";
2614	exit 1;	3838	};
		3839
		3840	warn "reloaded";
		3841	--$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	};
2615	};	3861	};
2616		3862	}
2617	warn "reloaded";
2618	};
2619
2620	our $RELOAD_WATCHER; # used only during reload
2621		3863
2622	register_command "reload" => sub {	3864	register_command "reload" => sub {
2623	my ($who, $arg) = @_;	3865	my ($who, $arg) = @_;
2624		3866
2625	if ($who->flag (FLAG_WIZ)) {	3867	if ($who->flag (FLAG_WIZ)) {
2626	$who->message ("reloading server.");	3868	$who->message ("reloading server.");
2627		3869	async {
2628	# doing reload synchronously and two reloads happen back-to-back,	3870	$Coro::current->{desc} = "perl_reload";
2629	# coro crashes during coro_state_free->destroy here.
2630
2631	$RELOAD_WATCHER ||= Event->timer (
2632	reentrant => 0,
2633	after => 0,
2634	data => WF_AUTOCANCEL,
2635	cb => sub {
2636	reload;	3871	reload_perl;
2637	undef $RELOAD_WATCHER;
2638	},
2639	);	3872	};
2640	}	3873	}
2641	};	3874	};
2642		3875
2643	unshift @INC, $LIBDIR;	3876	unshift @INC, $LIBDIR;
2644		3877
…		…
2646		3879
2647	our @WAIT_FOR_TICK;	3880	our @WAIT_FOR_TICK;
2648	our @WAIT_FOR_TICK_BEGIN;	3881	our @WAIT_FOR_TICK_BEGIN;
2649		3882
2650	sub wait_for_tick {	3883	sub wait_for_tick {
		3884	return if tick_inhibit || $Coro::current == $Coro::main;
		3885
2651	my $signal = new Coro::Signal;	3886	my $signal = new Coro::Signal;
2652	push @WAIT_FOR_TICK, $signal;	3887	push @WAIT_FOR_TICK, $signal;
2653	$signal->wait;	3888	$signal->wait;
2654	}	3889	}
2655		3890
2656	sub wait_for_tick_begin {	3891	sub wait_for_tick_begin {
		3892	return if tick_inhibit || $Coro::current == $Coro::main;
		3893
2657	my $signal = new Coro::Signal;	3894	my $signal = new Coro::Signal;
2658	push @WAIT_FOR_TICK_BEGIN, $signal;	3895	push @WAIT_FOR_TICK_BEGIN, $signal;
2659	$signal->wait;	3896	$signal->wait;
2660	}	3897	}
2661		3898
2662	$TICK_WATCHER = Event->timer (	3899	sub tick {
2663	reentrant => 0,
2664	parked => 1,
2665	prio => 0,
2666	at => $NEXT_TICK || $TICK,
2667	data => WF_AUTOCANCEL,
2668	cb => sub {
2669	if ($Coro::current != $Coro::main) {	3900	if ($Coro::current != $Coro::main) {
2670	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3901	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2671	unless ++$bug_warning > 10;	3902	unless ++$bug_warning > 10;
2672	return;	3903	return;
2673	}	3904	}
2674		3905
2675	$NOW = Event::time;
2676
2677	cf::server_tick; # one server iteration	3906	cf::server_tick; # one server iteration
2678	$RUNTIME += $TICK;
2679	$NEXT_TICK += $TICK;
2680		3907
2681	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3908	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2682	$NEXT_RUNTIME_WRITE = $NOW + 10;	3909	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2683	Coro::async_pool {	3910	Coro::async_pool {
		3911	$Coro::current->{desc} = "runtime saver";
2684	write_runtime	3912	write_runtime_sync
2685	or warn "ERROR: unable to write runtime file: $!";	3913	or warn "ERROR: unable to write runtime file: $!";
2686	};
2687	}	3914	};
		3915	}
2688		3916
2689	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3917	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2690	$sig->send;	3918	$sig->send;
2691	}	3919	}
2692	while (my $sig = shift @WAIT_FOR_TICK) {	3920	while (my $sig = shift @WAIT_FOR_TICK) {
2693	$sig->send;	3921	$sig->send;
2694	}
2695
2696	# my $AFTER = Event::time;
2697	# warn $AFTER - $NOW;#d#
2698
2699	# if we are delayed by four ticks or more, skip them all
2700	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2701
2702	$TICK_WATCHER->at ($NEXT_TICK);
2703	$TICK_WATCHER->start;
2704	},	3922	}
2705	);	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	}
2706		3935
2707	{	3936	{
2708	BDB::max_poll_time $TICK * 0.1;	3937	# configure BDB
2709	$BDB_POLL_WATCHER = Event->io (	3938
2710	reentrant => 0,
2711	fd => BDB::poll_fileno,
2712	poll => 'r',
2713	prio => 0,
2714	data => WF_AUTOCANCEL,
2715	cb => \&BDB::poll_cb,
2716	);
2717	BDB::min_parallel 8;	3939	BDB::min_parallel 8;
2718		3940	BDB::max_poll_reqs $TICK * 0.1;
2719	BDB::set_sync_prepare {	3941	$AnyEvent::BDB::WATCHER->priority (1);
2720	my $status;
2721	my $current = $Coro::current;
2722	(
2723	sub {
2724	$status = $!;
2725	$current->ready; undef $current;
2726	},
2727	sub {
2728	Coro::schedule while defined $current;
2729	$! = $status;
2730	},
2731	)
2732	};
2733		3942
2734	unless ($DB_ENV) {	3943	unless ($DB_ENV) {
2735	$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);
2736		3950
2737	cf::sync_job {	3951	cf::sync_job {
2738	eval {	3952	eval {
2739	BDB::db_env_open	3953	BDB::db_env_open
2740	$DB_ENV,	3954	$DB_ENV,
2741	$BDB_ENV_DIR,	3955	$BDBDIR,
2742	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3956	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2743	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3957	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2744	0666;	3958	0666;
2745		3959
2746	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3960	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2747
2748	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2749	$DB_ENV->set_lk_detect;
2750	};	3961	};
2751		3962
2752	cf::cleanup "db_env_open(db): $@" if $@;	3963	cf::cleanup "db_env_open(db): $@" if $@;
2753	};	3964	};
2754	}	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	};
2755	}	3976	}
2756		3977
2757	{	3978	{
		3979	# configure IO::AIO
		3980
2758	IO::AIO::min_parallel 8;	3981	IO::AIO::min_parallel 8;
2759
2760	undef $Coro::AIO::WATCHER;
2761	IO::AIO::max_poll_time $TICK * 0.1;	3982	IO::AIO::max_poll_time $TICK * 0.1;
2762	$AIO_POLL_WATCHER = Event->io (	3983	undef $AnyEvent::AIO::WATCHER;
2763	reentrant => 0,
2764	data => WF_AUTOCANCEL,
2765	fd => IO::AIO::poll_fileno,
2766	poll => 'r',
2767	prio => 6,
2768	cb => \&IO::AIO::poll_cb,
2769	);
2770	}	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;
2771		4031
2772	END { cf::emergency_save }	4032	END { cf::emergency_save }
2773		4033
2774	1	4034	1
2775		4035

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