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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.240 by root, Mon Apr 16 10:14:25 2007 UTC vs.
Revision 1.498 by elmex, Tue Jan 5 16:16:37 2010 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 ();
		37	use Carp ();
13		38
		39	use Guard ();
14	use Coro 3.52 ();	40	use Coro ();
15	use Coro::State;	41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
16	use Coro::Event;	44	use Coro::AnyEvent;
17	use Coro::Timer;	45	use Coro::Timer;
18	use Coro::Signal;	46	use Coro::Signal;
19	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
20	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
21	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
22		54
		55	use JSON::XS 2.01 ();
23	use BDB ();	56	use BDB ();
24	use Data::Dumper;	57	use Data::Dumper;
25	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	Carp::cluck "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> and F</editor>). May
		2350	block.
		2351
		2352	=cut
		2353
		2354	sub static_maps() {
		2355	my @dirs = "";
		2356	my @maps;
		2357
		2358	while (@dirs) {
		2359	my $dir = shift @dirs;
		2360
		2361	next if $dir eq "/styles" || $dir eq "/editor";
		2362
		2363	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2364	or return;
		2365
		2366	for (@$files) {
		2367	s/\.map$// or next;
		2368	utf8::decode $_;
		2369	push @maps, "$dir/$_";
		2370	}
		2371
		2372	push @dirs, map "$dir/$_", @$dirs;
		2373	}
		2374
		2375	\@maps
		2376	}
1739		2377
1740	=back	2378	=back
1741		2379
1742	=head3 cf::object	2380	=head3 cf::object
1743		2381
…		…
1747		2385
1748	=over 4	2386	=over 4
1749		2387
1750	=item $ob->inv_recursive	2388	=item $ob->inv_recursive
1751		2389
1752	Returns the inventory of the object _and_ their inventories, recursively.	2390	Returns the inventory of the object I<and> their inventories, recursively,
		2391	but I<not> the object itself.
1753		2392
1754	=cut	2393	=cut
1755		2394
1756	sub inv_recursive_;	2395	sub inv_recursive_;
1757	sub inv_recursive_ {	2396	sub inv_recursive_ {
…		…
1760		2399
1761	sub inv_recursive {	2400	sub inv_recursive {
1762	inv_recursive_ inv $_[0]	2401	inv_recursive_ inv $_[0]
1763	}	2402	}
1764		2403
		2404	=item $ref = $ob->ref
		2405
		2406	Creates and returns a persistent reference to an object that can be stored as a string.
		2407
		2408	=item $ob = cf::object::deref ($refstring)
		2409
		2410	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2411	even if the object actually exists. May block.
		2412
		2413	=cut
		2414
		2415	sub deref {
		2416	my ($ref) = @_;
		2417
		2418	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2419	my ($uuid, $name) = ($1, $2);
		2420	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2421	or return;
		2422	$pl->ob->uuid eq $uuid
		2423	or return;
		2424
		2425	$pl->ob
		2426	} else {
		2427	warn "$ref: cannot resolve object reference\n";
		2428	undef
		2429	}
		2430	}
		2431
1765	package cf;	2432	package cf;
1766		2433
1767	=back	2434	=back
1768		2435
1769	=head3 cf::object::player	2436	=head3 cf::object::player
…		…
1775	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2442	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	2443	can be C<undef>. Does the right thing when the player is currently in a
1777	dialogue with the given NPC character.	2444	dialogue with the given NPC character.
1778		2445
1779	=cut	2446	=cut
		2447
		2448	our $SAY_CHANNEL = {
		2449	id => "say",
		2450	title => "Map",
		2451	reply => "say ",
		2452	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2453	};
		2454
		2455	our $CHAT_CHANNEL = {
		2456	id => "chat",
		2457	title => "Chat",
		2458	reply => "chat ",
		2459	tooltip => "Player chat and shouts, global to the server.",
		2460	};
1780		2461
1781	# rough implementation of a future "reply" method that works	2462	# rough implementation of a future "reply" method that works
1782	# with dialog boxes.	2463	# with dialog boxes.
1783	#TODO: the first argument must go, split into a $npc->reply_to ( method	2464	#TODO: the first argument must go, split into a $npc->reply_to ( method
1784	sub cf::object::player::reply($$$;$) {	2465	sub cf::object::player::reply($$$;$) {
…		…
1786		2467
1787	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2468	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1788		2469
1789	if ($self->{record_replies}) {	2470	if ($self->{record_replies}) {
1790	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2471	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2472
1791	} else {	2473	} else {
		2474	my $pl = $self->contr;
		2475
		2476	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2477	my $dialog = $pl->{npc_dialog};
		2478	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2479
		2480	} else {
1792	$msg = $npc->name . " says: $msg" if $npc;	2481	$msg = $npc->name . " says: $msg" if $npc;
1793	$self->message ($msg, $flags);	2482	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2483	}
1794	}	2484	}
		2485	}
		2486
		2487	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2488
		2489	=cut
		2490
		2491	sub cf::object::send_msg {
		2492	my $pl = shift->contr
		2493	or return;
		2494	$pl->send_msg (@_);
1795	}	2495	}
1796		2496
1797	=item $player_object->may ("access")	2497	=item $player_object->may ("access")
1798		2498
1799	Returns wether the given player is authorized to access resource "access"	2499	Returns wether the given player is authorized to access resource "access"
…		…
1812		2512
1813	=item $player_object->enter_link	2513	=item $player_object->enter_link
1814		2514
1815	Freezes the player and moves him/her to a special map (C<{link}>).	2515	Freezes the player and moves him/her to a special map (C<{link}>).
1816		2516
1817	The player should be reasonably safe there for short amounts of time. You	2517	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.	2518	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2519	though, as the palyer cannot control the character while it is on the link
		2520	map.
1819		2521
1820	Will never block.	2522	Will never block.
1821		2523
1822	=item $player_object->leave_link ($map, $x, $y)	2524	=item $player_object->leave_link ($map, $x, $y)
1823		2525
…		…
1846	$self->deactivate_recursive;	2548	$self->deactivate_recursive;
1847		2549
1848	return if UNIVERSAL::isa $self->map, "ext::map_link";	2550	return if UNIVERSAL::isa $self->map, "ext::map_link";
1849		2551
1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2552	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1851	if $self->map;	2553	if $self->map && $self->map->{path} ne "{link}";
1852		2554
1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2555	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1854	}	2556	}
1855		2557
1856	sub cf::object::player::leave_link {	2558	sub cf::object::player::leave_link {
1857	my ($self, $map, $x, $y) = @_;	2559	my ($self, $map, $x, $y) = @_;
		2560
		2561	return unless $self->contr->active;
1858		2562
1859	my $link_pos = delete $self->{_link_pos};	2563	my $link_pos = delete $self->{_link_pos};
1860		2564
1861	unless ($map) {	2565	unless ($map) {
1862	# restore original map position	2566	# restore original map position
…		…
1873	($x, $y) = (-1, -1)	2577	($x, $y) = (-1, -1)
1874	unless (defined $x) && (defined $y);	2578	unless (defined $x) && (defined $y);
1875		2579
1876	# use -1 or undef as default coordinates, not 0, 0	2580	# use -1 or undef as default coordinates, not 0, 0
1877	($x, $y) = ($map->enter_x, $map->enter_y)	2581	($x, $y) = ($map->enter_x, $map->enter_y)
1878	if $x <=0 && $y <= 0;	2582	if $x <= 0 && $y <= 0;
1879		2583
1880	$map->load;	2584	$map->load;
1881	$map->load_diag;	2585	$map->load_neighbours;
1882		2586
1883	return unless $self->contr->active;	2587	return unless $self->contr->active;
1884	$self->activate_recursive;
1885		2588
1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2589	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1887	$self->enter_map ($map, $x, $y);	2590	$self->enter_map ($map, $x, $y);
1888	}
1889		2591
1890	cf::player->attach (	2592	# only activate afterwards, to support waiting in hooks
1891	on_logout => sub {	2593	$self->activate_recursive;
1892	my ($pl) = @_;	2594	}
1893		2595
1894	# abort map switching before logout	2596	=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		2597
1904	# try to abort aborted map switching on player login :)	2598	Moves the player to the given map-path and coordinates by first freezing
1905	# should happen only on crashes	2599	her, loading and preparing them map, calling the provided $check callback
1906	if ($pl->ob->{_link_pos}) {	2600	that has to return the map if sucecssful, and then unfreezes the player on
1907	$pl->ob->enter_link;	2601	the new (success) or old (failed) map position. In either case, $done will
1908	(async {	2602	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		2603
1922	=item $player_object->goto ($path, $x, $y)	2604	Note that $check will be called with a potentially non-loaded map, so if
		2605	it needs a loaded map it has to call C<< ->load >>.
1923		2606
1924	=cut	2607	=cut
		2608
		2609	our $GOTOGEN;
1925		2610
1926	sub cf::object::player::goto {	2611	sub cf::object::player::goto {
1927	my ($self, $path, $x, $y) = @_;	2612	my ($self, $path, $x, $y, $check, $done) = @_;
		2613
		2614	# do generation counting so two concurrent goto's will be executed in-order
		2615	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1928		2616
1929	$self->enter_link;	2617	$self->enter_link;
1930		2618
1931	(async {	2619	(async {
		2620	$Coro::current->{desc} = "player::goto $path $x $y";
		2621
		2622	# *tag paths override both path and x|y
		2623	if ($path =~ /^\*(.*)$/) {
		2624	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2625	my $ob = $obs[rand @obs];
		2626
		2627	# see if we actually can go there
		2628	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2629	$ob = $obs[rand @obs];
		2630	} else {
		2631	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2632	}
		2633	# else put us there anyways for now #d#
		2634
		2635	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2636	} else {
		2637	($path, $x, $y) = (undef, undef, undef);
		2638	}
		2639	}
		2640
1932	my $map = eval {	2641	my $map = eval {
1933	my $map = cf::map::find $path;	2642	my $map = defined $path ? cf::map::find $path : undef;
		2643
		2644	if ($map) {
1934	$map = $map->customise_for ($self) if $map;	2645	$map = $map->customise_for ($self);
		2646	$map = $check->($map) if $check && $map;
		2647	} else {
		2648	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2649	}
		2650
1935	$map	2651	$map
		2652	};
		2653
		2654	if ($@) {
		2655	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2656	LOG llevError | logBacktrace, Carp::longmess $@;
1936	} or	2657	}
1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1938		2658
		2659	if ($gen == $self->{_goto_generation}) {
		2660	delete $self->{_goto_generation};
1939	$self->leave_link ($map, $x, $y);	2661	$self->leave_link ($map, $x, $y);
		2662	}
		2663
		2664	$done->() if $done;
1940	})->prio (1);	2665	})->prio (1);
1941	}	2666	}
1942		2667
1943	=item $player_object->enter_exit ($exit_object)	2668	=item $player_object->enter_exit ($exit_object)
1944		2669
…		…
1964	}	2689	}
1965		2690
1966	sub prepare_random_map {	2691	sub prepare_random_map {
1967	my ($exit) = @_;	2692	my ($exit) = @_;
1968		2693
1969	my $guard = cf::lock_acquire "exit_prepare:$exit";
1970
1971	# all this does is basically replace the /! path by	2694	# all this does is basically replace the /! path by
1972	# a new random map path (?random/...) with a seed	2695	# a new random map path (?random/...) with a seed
1973	# that depends on the exit object	2696	# that depends on the exit object
1974		2697
1975	my $rmp = parse_random_map_params $exit->msg;	2698	my $rmp = parse_random_map_params $exit->msg;
…		…
1977	if ($exit->map) {	2700	if ($exit->map) {
1978	$rmp->{region} = $exit->region->name;	2701	$rmp->{region} = $exit->region->name;
1979	$rmp->{origin_map} = $exit->map->path;	2702	$rmp->{origin_map} = $exit->map->path;
1980	$rmp->{origin_x} = $exit->x;	2703	$rmp->{origin_x} = $exit->x;
1981	$rmp->{origin_y} = $exit->y;	2704	$rmp->{origin_y} = $exit->y;
		2705
		2706	$exit->map->touch;
1982	}	2707	}
1983		2708
1984	$rmp->{random_seed} ||= $exit->random_seed;	2709	$rmp->{random_seed} ||= $exit->random_seed;
1985		2710
1986	my $data = cf::to_json $rmp;	2711	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1987	my $md5 = Digest::MD5::md5_hex $data;	2712	my $md5 = Digest::MD5::md5_hex $data;
1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2713	my $meta = "$RANDOMDIR/$md5.meta";
1989		2714
1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2715	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1991	aio_write $fh, 0, (length $data), $data, 0;	2716	aio_write $fh, 0, (length $data), $data, 0;
1992	undef $fh;	2717	undef $fh;
1993	aio_rename "$meta~", $meta;	2718	aio_rename "$meta~", $meta;
1994		2719
		2720	my $slaying = "?random/$md5";
		2721
		2722	if ($exit->valid) {
1995	$exit->slaying ("?random/$md5");	2723	$exit->slaying ("?random/$md5");
1996	$exit->msg (undef);	2724	$exit->msg (undef);
		2725	}
1997	}	2726	}
1998	}	2727	}
1999		2728
2000	sub cf::object::player::enter_exit {	2729	sub cf::object::player::enter_exit {
2001	my ($self, $exit) = @_;	2730	my ($self, $exit) = @_;
2002		2731
2003	return unless $self->type == cf::PLAYER;	2732	return unless $self->type == cf::PLAYER;
2004		2733
2005	if ($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;	2734	$self->enter_link;
2017		2735
2018	(async {	2736	(async {
2019	$self->deactivate_recursive; # just to be sure	2737	$Coro::current->{desc} = "enter_exit";
		2738
2020	unless (eval {	2739	unless (eval {
		2740	$self->deactivate_recursive; # just to be sure
		2741
		2742	# random map handling
		2743	{
		2744	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2745
		2746	prepare_random_map $exit
		2747	if $exit->slaying eq "/!";
		2748	}
		2749
		2750	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2751	my $x = $exit->stats->hp;
		2752	my $y = $exit->stats->sp;
		2753
2021	$self->goto ($slaying, $hp, $sp);	2754	$self->goto ($map, $x, $y);
2022		2755
		2756	# if exit is damned, update players death & WoR home-position
		2757	$self->contr->savebed ($map, $x, $y)
		2758	if $exit->flag (cf::FLAG_DAMNED);
		2759
2023	1;	2760	1
2024	}) {	2761	}) {
2025	$self->message ("Something went wrong deep within the crossfire server. "	2762	$self->message ("Something went wrong deep within the deliantra server. "
2026	. "I'll try to bring you back to the map you were before. "	2763	. "I'll try to bring you back to the map you were before. "
2027	. "Please report this to the dungeon master!",	2764	. "Please report this to the dungeon master!",
2028	cf::NDI_UNIQUE | cf::NDI_RED);	2765	cf::NDI_UNIQUE | cf::NDI_RED);
2029		2766
2030	warn "ERROR in enter_exit: $@";	2767	warn "ERROR in enter_exit: $@";
…		…
2049		2786
2050	utf8::encode $text;	2787	utf8::encode $text;
2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2788	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2052	}	2789	}
2053		2790
		2791	=item $client->send_big_packet ($pkt)
		2792
		2793	Like C<send_packet>, but tries to compress large packets, and fragments
		2794	them as required.
		2795
		2796	=cut
		2797
		2798	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2799
		2800	sub cf::client::send_big_packet {
		2801	my ($self, $pkt) = @_;
		2802
		2803	# try lzf for large packets
		2804	$pkt = "lzf " . Compress::LZF::compress $pkt
		2805	if 1024 <= length $pkt and $self->{can_lzf};
		2806
		2807	# split very large packets
		2808	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2809	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2810	$pkt = "frag";
		2811	}
		2812
		2813	$self->send_packet ($pkt);
		2814	}
		2815
		2816	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2817
		2818	Send a drawinfo or msg packet to the client, formatting the msg for the
		2819	client if neccessary. C<$type> should be a string identifying the type of
		2820	the message, with C<log> being the default. If C<$color> is negative, suppress
		2821	the message unless the client supports the msg packet.
		2822
		2823	=cut
		2824
		2825	# non-persistent channels (usually the info channel)
		2826	our %CHANNEL = (
		2827	"c/motd" => {
		2828	id => "infobox",
		2829	title => "MOTD",
		2830	reply => undef,
		2831	tooltip => "The message of the day",
		2832	},
		2833	"c/identify" => {
		2834	id => "infobox",
		2835	title => "Identify",
		2836	reply => undef,
		2837	tooltip => "Items recently identified",
		2838	},
		2839	"c/examine" => {
		2840	id => "infobox",
		2841	title => "Examine",
		2842	reply => undef,
		2843	tooltip => "Signs and other items you examined",
		2844	},
		2845	"c/shopinfo" => {
		2846	id => "infobox",
		2847	title => "Shop Info",
		2848	reply => undef,
		2849	tooltip => "What your bargaining skill tells you about the shop",
		2850	},
		2851	"c/book" => {
		2852	id => "infobox",
		2853	title => "Book",
		2854	reply => undef,
		2855	tooltip => "The contents of a note or book",
		2856	},
		2857	"c/lookat" => {
		2858	id => "infobox",
		2859	title => "Look",
		2860	reply => undef,
		2861	tooltip => "What you saw there",
		2862	},
		2863	"c/who" => {
		2864	id => "infobox",
		2865	title => "Players",
		2866	reply => undef,
		2867	tooltip => "Shows players who are currently online",
		2868	},
		2869	"c/body" => {
		2870	id => "infobox",
		2871	title => "Body Parts",
		2872	reply => undef,
		2873	tooltip => "Shows which body parts you posess and are available",
		2874	},
		2875	"c/statistics" => {
		2876	id => "infobox",
		2877	title => "Statistics",
		2878	reply => undef,
		2879	tooltip => "Shows your primary statistics",
		2880	},
		2881	"c/skills" => {
		2882	id => "infobox",
		2883	title => "Skills",
		2884	reply => undef,
		2885	tooltip => "Shows your experience per skill and item power",
		2886	},
		2887	"c/shopitems" => {
		2888	id => "infobox",
		2889	title => "Shop Items",
		2890	reply => undef,
		2891	tooltip => "Shows the items currently for sale in this shop",
		2892	},
		2893	"c/resistances" => {
		2894	id => "infobox",
		2895	title => "Resistances",
		2896	reply => undef,
		2897	tooltip => "Shows your resistances",
		2898	},
		2899	"c/pets" => {
		2900	id => "infobox",
		2901	title => "Pets",
		2902	reply => undef,
		2903	tooltip => "Shows information abotu your pets/a specific pet",
		2904	},
		2905	"c/perceiveself" => {
		2906	id => "infobox",
		2907	title => "Perceive Self",
		2908	reply => undef,
		2909	tooltip => "You gained detailed knowledge about yourself",
		2910	},
		2911	"c/uptime" => {
		2912	id => "infobox",
		2913	title => "Uptime",
		2914	reply => undef,
		2915	tooltip => "How long the server has been running since last restart",
		2916	},
		2917	"c/mapinfo" => {
		2918	id => "infobox",
		2919	title => "Map Info",
		2920	reply => undef,
		2921	tooltip => "Information related to the maps",
		2922	},
		2923	"c/party" => {
		2924	id => "party",
		2925	title => "Party",
		2926	reply => "gsay ",
		2927	tooltip => "Messages and chat related to your party",
		2928	},
		2929	"c/death" => {
		2930	id => "death",
		2931	title => "Death",
		2932	reply => undef,
		2933	tooltip => "Reason for and more info about your most recent death",
		2934	},
		2935	"c/say" => $SAY_CHANNEL,
		2936	"c/chat" => $CHAT_CHANNEL,
		2937	);
		2938
		2939	sub cf::client::send_msg {
		2940	my ($self, $channel, $msg, $color, @extra) = @_;
		2941
		2942	$msg = $self->pl->expand_cfpod ($msg)
		2943	unless $color & cf::NDI_VERBATIM;
		2944
		2945	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2946
		2947	# check predefined channels, for the benefit of C
		2948	if ($CHANNEL{$channel}) {
		2949	$channel = $CHANNEL{$channel};
		2950
		2951	$self->ext_msg (channel_info => $channel);
		2952	$channel = $channel->{id};
		2953
		2954	} elsif (ref $channel) {
		2955	# send meta info to client, if not yet sent
		2956	unless (exists $self->{channel}{$channel->{id}}) {
		2957	$self->{channel}{$channel->{id}} = $channel;
		2958	$self->ext_msg (channel_info => $channel);
		2959	}
		2960
		2961	$channel = $channel->{id};
		2962	}
		2963
		2964	return unless @extra || length $msg;
		2965
		2966	# default colour, mask it out
		2967	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2968	if $color & cf::NDI_DEF;
		2969
		2970	my $pkt = "msg "
		2971	. $self->{json_coder}->encode (
		2972	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2973	);
		2974
		2975	$self->send_big_packet ($pkt);
		2976	}
		2977
2054	=item $client->ext_event ($type, %msg)	2978	=item $client->ext_msg ($type, @msg)
2055		2979
2056	Sends an exti event to the client.	2980	Sends an ext event to the client.
2057		2981
2058	=cut	2982	=cut
2059		2983
2060	sub cf::client::ext_event($$%) {	2984	sub cf::client::ext_msg($$@) {
2061	my ($self, $type, %msg) = @_;	2985	my ($self, $type, @msg) = @_;
2062		2986
		2987	if ($self->extcmd == 2) {
		2988	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2989	} elsif ($self->extcmd == 1) { # TODO: remove
2063	$msg{msgtype} = "event_$type";	2990	push @msg, msgtype => "event_$type";
2064	$self->send_packet ("ext " . cf::to_json \%msg);	2991	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2992	}
		2993	}
		2994
		2995	=item $client->ext_reply ($msgid, @msg)
		2996
		2997	Sends an ext reply to the client.
		2998
		2999	=cut
		3000
		3001	sub cf::client::ext_reply($$@) {
		3002	my ($self, $id, @msg) = @_;
		3003
		3004	if ($self->extcmd == 2) {
		3005	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3006	} elsif ($self->extcmd == 1) {
		3007	#TODO: version 1, remove
		3008	unshift @msg, msgtype => "reply", msgid => $id;
		3009	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3010	}
2065	}	3011	}
2066		3012
2067	=item $success = $client->query ($flags, "text", \&cb)	3013	=item $success = $client->query ($flags, "text", \&cb)
2068		3014
2069	Queues a query to the client, calling the given callback with	3015	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>,	3016	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>.	3017	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2072		3018
2073	Queries can fail, so check the return code. Or don't, as queries will become	3019	Queries can fail, so check the return code. Or don't, as queries will
2074	reliable at some point in the future.	3020	become reliable at some point in the future.
2075		3021
2076	=cut	3022	=cut
2077		3023
2078	sub cf::client::query {	3024	sub cf::client::query {
2079	my ($self, $flags, $text, $cb) = @_;	3025	my ($self, $flags, $text, $cb) = @_;
…		…
2087	utf8::encode $text;	3033	utf8::encode $text;
2088	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3034	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2089		3035
2090	$self->send_packet ($self->{query_queue}[0][0])	3036	$self->send_packet ($self->{query_queue}[0][0])
2091	if @{ $self->{query_queue} } == 1;	3037	if @{ $self->{query_queue} } == 1;
		3038
		3039	1
2092	}	3040	}
2093		3041
2094	cf::client->attach (	3042	cf::client->attach (
		3043	on_connect => sub {
		3044	my ($ns) = @_;
		3045
		3046	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3047	},
2095	on_reply => sub {	3048	on_reply => sub {
2096	my ($ns, $msg) = @_;	3049	my ($ns, $msg) = @_;
2097		3050
2098	# this weird shuffling is so that direct followup queries	3051	# this weird shuffling is so that direct followup queries
2099	# get handled first	3052	# get handled first
…		…
2111	} else {	3064	} else {
2112	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3065	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2113	}	3066	}
2114	}	3067	}
2115	},	3068	},
		3069	on_exticmd => sub {
		3070	my ($ns, $buf) = @_;
		3071
		3072	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3073
		3074	if (ref $msg) {
		3075	my ($type, $reply, @payload) =
		3076	"ARRAY" eq ref $msg
		3077	? @$msg
		3078	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3079
		3080	my @reply;
		3081
		3082	if (my $cb = $EXTICMD{$type}) {
		3083	@reply = $cb->($ns, @payload);
		3084	}
		3085
		3086	$ns->ext_reply ($reply, @reply)
		3087	if $reply;
		3088
		3089	} else {
		3090	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3091	}
		3092
		3093	cf::override;
		3094	},
2116	);	3095	);
2117		3096
2118	=item $client->async (\&cb)	3097	=item $client->async (\&cb)
2119		3098
2120	Create a new coroutine, running the specified callback. The coroutine will	3099	Create a new coroutine, running the specified callback. The coroutine will
…		…
2161	our $safe = new Safe "safe";	3140	our $safe = new Safe "safe";
2162	our $safe_hole = new Safe::Hole;	3141	our $safe_hole = new Safe::Hole;
2163		3142
2164	$SIG{FPE} = 'IGNORE';	3143	$SIG{FPE} = 'IGNORE';
2165		3144
2166	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3145	$safe->permit_only (Opcode::opset qw(
		3146	:base_core :base_mem :base_orig :base_math :base_loop
		3147	grepstart grepwhile mapstart mapwhile
		3148	sort time
		3149	));
2167		3150
2168	# here we export the classes and methods available to script code	3151	# here we export the classes and methods available to script code
2169		3152
2170	=pod	3153	=pod
2171		3154
2172	The following functions and methods are available within a safe environment:	3155	The following functions and methods are available within a safe environment:
2173		3156
2174	cf::object contr pay_amount pay_player map	3157	cf::object
		3158	contr pay_amount pay_player map x y force_find force_add destroy
		3159	insert remove name archname title slaying race decrease split
		3160	value
		3161
2175	cf::object::player player	3162	cf::object::player
2176	cf::player peaceful	3163	player
2177	cf::map trigger	3164
		3165	cf::player
		3166	peaceful
		3167
		3168	cf::map
		3169	trigger
2178		3170
2179	=cut	3171	=cut
2180		3172
2181	for (	3173	for (
2182	["cf::object" => qw(contr pay_amount pay_player map)],	3174	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3175	insert remove inv nrof name archname title slaying race
		3176	decrease split destroy change_exp value msg lore send_msg)],
2183	["cf::object::player" => qw(player)],	3177	["cf::object::player" => qw(player)],
2184	["cf::player" => qw(peaceful)],	3178	["cf::player" => qw(peaceful send_msg)],
2185	["cf::map" => qw(trigger)],	3179	["cf::map" => qw(trigger)],
2186	) {	3180	) {
2187	no strict 'refs';	3181	no strict 'refs';
2188	my ($pkg, @funs) = @$_;	3182	my ($pkg, @funs) = @$_;
2189	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3183	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2206	my ($code, %vars) = @_;	3200	my ($code, %vars) = @_;
2207		3201
2208	my $qcode = $code;	3202	my $qcode = $code;
2209	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3203	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2210	$qcode =~ s/\n/\\n/g;	3204	$qcode =~ s/\n/\\n/g;
		3205
		3206	%vars = (_dummy => 0) unless %vars;
2211		3207
2212	local $_;	3208	local $_;
2213	local @safe::cf::_safe_eval_args = values %vars;	3209	local @safe::cf::_safe_eval_args = values %vars;
2214		3210
2215	my $eval =	3211	my $eval =
…		…
2258	=back	3254	=back
2259		3255
2260	=cut	3256	=cut
2261		3257
2262	#############################################################################	3258	#############################################################################
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	3259	# the server's init and main functions
2336		3260
2337	sub load_facedata {	3261	sub load_facedata($) {
2338	my $path = sprintf "%s/facedata", cf::datadir;	3262	my ($path) = @_;
		3263
		3264	# HACK to clear player env face cache, we need some signal framework
		3265	# for this (global event?)
		3266	%ext::player_env::MUSIC_FACE_CACHE = ();
		3267
		3268	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2339		3269
2340	warn "loading facedata from $path\n";	3270	warn "loading facedata from $path\n";
2341		3271
2342	my $facedata;	3272	my $facedata;
2343	0 < aio_load $path, $facedata	3273	0 < aio_load $path, $facedata
…		…
2346	$facedata = Coro::Storable::thaw $facedata;	3276	$facedata = Coro::Storable::thaw $facedata;
2347		3277
2348	$facedata->{version} == 2	3278	$facedata->{version} == 2
2349	or cf::cleanup "$path: version mismatch, cannot proceed.";	3279	or cf::cleanup "$path: version mismatch, cannot proceed.";
2350		3280
		3281	# patch in the exptable
		3282	$facedata->{resource}{"res/exp_table"} = {
		3283	type => FT_RSRC,
		3284	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3285	};
		3286	cf::cede_to_tick;
		3287
2351	{	3288	{
2352	my $faces = $facedata->{faceinfo};	3289	my $faces = $facedata->{faceinfo};
2353		3290
2354	while (my ($face, $info) = each %$faces) {	3291	while (my ($face, $info) = each %$faces) {
2355	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3292	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3293
2356	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3294	cf::face::set_visibility $idx, $info->{visibility};
		3295	cf::face::set_magicmap $idx, $info->{magicmap};
2357	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3296	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2358	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3297	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2359	Coro::cede;	3298
		3299	cf::cede_to_tick;
2360	}	3300	}
2361		3301
2362	while (my ($face, $info) = each %$faces) {	3302	while (my ($face, $info) = each %$faces) {
2363	next unless $info->{smooth};	3303	next unless $info->{smooth};
		3304
2364	my $idx = cf::face::find $face	3305	my $idx = cf::face::find $face
2365	or next;	3306	or next;
		3307
2366	if (my $smooth = cf::face::find $info->{smooth}) {	3308	if (my $smooth = cf::face::find $info->{smooth}) {
		3309	cf::face::set_smooth $idx, $smooth;
2367	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3310	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2368	} else {	3311	} else {
2369	warn "smooth face '$info->{smooth}' not found for face '$face'";	3312	warn "smooth face '$info->{smooth}' not found for face '$face'";
2370	}	3313	}
2371	Coro::cede;	3314
		3315	cf::cede_to_tick;
2372	}	3316	}
2373	}	3317	}
2374		3318
2375	{	3319	{
2376	my $anims = $facedata->{animinfo};	3320	my $anims = $facedata->{animinfo};
2377		3321
2378	while (my ($anim, $info) = each %$anims) {	3322	while (my ($anim, $info) = each %$anims) {
2379	cf::anim::set $anim, $info->{frames}, $info->{facings};	3323	cf::anim::set $anim, $info->{frames}, $info->{facings};
2380	Coro::cede;	3324	cf::cede_to_tick;
2381	}	3325	}
2382		3326
2383	cf::anim::invalidate_all; # d'oh	3327	cf::anim::invalidate_all; # d'oh
2384	}	3328	}
2385		3329
		3330	{
		3331	my $res = $facedata->{resource};
		3332
		3333	while (my ($name, $info) = each %$res) {
		3334	if (defined $info->{type}) {
		3335	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3336
		3337	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		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	cf::load_settings;
		3511	cf::load_materials;
		3512
		3513	reload_resources;
		3514	reload_config;
2431	db_init;	3515	db_init;
		3516
		3517	cf::init_uuid;
		3518	cf::init_signals;
		3519	cf::init_commands;
		3520	cf::init_skills;
		3521
		3522	cf::init_beforeplay;
		3523
		3524	atomic;
		3525
2432	load_extensions;	3526	load_extensions;
2433		3527
2434	$TICK_WATCHER->start;	3528	utime time, time, $RUNTIMEFILE;
2435	Event::loop;	3529
		3530	# no (long-running) fork's whatsoever before this point(!)
		3531	use POSIX ();
		3532	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3533
		3534	(pop @POST_INIT)->(0) while @POST_INIT;
		3535	};
		3536
		3537	main_loop;
2436	}	3538	}
2437		3539
2438	#############################################################################	3540	#############################################################################
2439	# initialisation and cleanup	3541	# initialisation and cleanup
2440		3542
2441	# install some emergency cleanup handlers	3543	# install some emergency cleanup handlers
2442	BEGIN {	3544	BEGIN {
		3545	our %SIGWATCHER = ();
2443	for my $signal (qw(INT HUP TERM)) {	3546	for my $signal (qw(INT HUP TERM)) {
2444	Event->signal (	3547	$SIGWATCHER{$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";	3548	cf::cleanup "SIG$signal";
2451	},
2452	);	3549	};
		3550	}
		3551	}
		3552
		3553	sub write_runtime_sync {
		3554	# first touch the runtime file to show we are still running:
		3555	# the fsync below can take a very very long time.
		3556
		3557	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3558
		3559	my $guard = cf::lock_acquire "write_runtime";
		3560
		3561	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3562	or return;
		3563
		3564	my $value = $cf::RUNTIME + 90 + 10;
		3565	# 10 is the runtime save interval, for a monotonic clock
		3566	# 60 allows for the watchdog to kill the server.
		3567
		3568	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3569	and return;
		3570
		3571	# always fsync - this file is important
		3572	aio_fsync $fh
		3573	and return;
		3574
		3575	# touch it again to show we are up-to-date
		3576	aio_utime $fh, undef, undef;
		3577
		3578	close $fh
		3579	or return;
		3580
		3581	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3582	and return;
		3583
		3584	warn "runtime file written.\n";
		3585
2453	}	3586	1
		3587	}
		3588
		3589	our $uuid_lock;
		3590	our $uuid_skip;
		3591
		3592	sub write_uuid_sync($) {
		3593	$uuid_skip ||= $_[0];
		3594
		3595	return if $uuid_lock;
		3596	local $uuid_lock = 1;
		3597
		3598	my $uuid = "$LOCALDIR/uuid";
		3599
		3600	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3601	or return;
		3602
		3603	my $value = uuid_seq uuid_cur;
		3604
		3605	unless ($value) {
		3606	warn "cowardly refusing to write zero uuid value!\n";
		3607	return;
		3608	}
		3609
		3610	my $value = uuid_str $value + $uuid_skip;
		3611	$uuid_skip = 0;
		3612
		3613	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3614	and return;
		3615
		3616	# always fsync - this file is important
		3617	aio_fsync $fh
		3618	and return;
		3619
		3620	close $fh
		3621	or return;
		3622
		3623	aio_rename "$uuid~", $uuid
		3624	and return;
		3625
		3626	warn "uuid file written ($value).\n";
		3627
		3628	1
		3629
		3630	}
		3631
		3632	sub write_uuid($$) {
		3633	my ($skip, $sync) = @_;
		3634
		3635	$sync ? write_uuid_sync $skip
		3636	: async { write_uuid_sync $skip };
2454	}	3637	}
2455		3638
2456	sub emergency_save() {	3639	sub emergency_save() {
2457	my $freeze_guard = cf::freeze_mainloop;	3640	my $freeze_guard = cf::freeze_mainloop;
2458		3641
2459	warn "enter emergency perl save\n";	3642	warn "emergency_perl_save: enter\n";
2460		3643
2461	cf::sync_job {	3644	cf::sync_job {
		3645	# this is a trade-off: we want to be very quick here, so
		3646	# save all maps without fsync, and later call a global sync
		3647	# (which in turn might be very very slow)
		3648	local $USE_FSYNC = 0;
		3649
2462	# use a peculiar iteration method to avoid tripping on perl	3650	# use a peculiar iteration method to avoid tripping on perl
2463	# refcount bugs in for. also avoids problems with players	3651	# refcount bugs in for. also avoids problems with players
2464	# and maps saved/destroyed asynchronously.	3652	# and maps saved/destroyed asynchronously.
2465	warn "begin emergency player save\n";	3653	warn "emergency_perl_save: begin player save\n";
2466	for my $login (keys %cf::PLAYER) {	3654	for my $login (keys %cf::PLAYER) {
2467	my $pl = $cf::PLAYER{$login} or next;	3655	my $pl = $cf::PLAYER{$login} or next;
2468	$pl->valid or next;	3656	$pl->valid or next;
		3657	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2469	$pl->save;	3658	$pl->save;
2470	}	3659	}
2471	warn "end emergency player save\n";	3660	warn "emergency_perl_save: end player save\n";
2472		3661
2473	warn "begin emergency map save\n";	3662	warn "emergency_perl_save: begin map save\n";
2474	for my $path (keys %cf::MAP) {	3663	for my $path (keys %cf::MAP) {
2475	my $map = $cf::MAP{$path} or next;	3664	my $map = $cf::MAP{$path} or next;
2476	$map->valid or next;	3665	$map->valid or next;
2477	$map->save;	3666	$map->save;
2478	}	3667	}
2479	warn "end emergency map save\n";	3668	warn "emergency_perl_save: end map save\n";
2480		3669
2481	warn "begin emergency database checkpoint\n";	3670	warn "emergency_perl_save: begin database checkpoint\n";
2482	BDB::db_env_txn_checkpoint $DB_ENV;	3671	BDB::db_env_txn_checkpoint $DB_ENV;
2483	warn "end emergency database checkpoint\n";	3672	warn "emergency_perl_save: end database checkpoint\n";
		3673
		3674	warn "emergency_perl_save: begin write uuid\n";
		3675	write_uuid_sync 1;
		3676	warn "emergency_perl_save: end write uuid\n";
2484	};	3677	};
2485		3678
		3679	warn "emergency_perl_save: starting sync()\n";
		3680	IO::AIO::aio_sync sub {
		3681	warn "emergency_perl_save: finished sync()\n";
		3682	};
		3683
2486	warn "leave emergency perl save\n";	3684	warn "emergency_perl_save: leave\n";
2487	}	3685	}
2488		3686
2489	sub post_cleanup {	3687	sub post_cleanup {
2490	my ($make_core) = @_;	3688	my ($make_core) = @_;
2491		3689
2492	warn Carp::longmess "post_cleanup backtrace"	3690	warn Carp::longmess "post_cleanup backtrace"
2493	if $make_core;	3691	if $make_core;
2494	}
2495		3692
		3693	my $fh = pidfile;
		3694	unlink $PIDFILE if <$fh> == $$;
		3695	}
		3696
		3697	# a safer delete_package, copied from Symbol
		3698	sub clear_package($) {
		3699	my $pkg = shift;
		3700
		3701	# expand to full symbol table name if needed
		3702	unless ($pkg =~ /^main::.*::$/) {
		3703	$pkg = "main$pkg" if $pkg =~ /^::/;
		3704	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3705	$pkg .= '::' unless $pkg =~ /::$/;
		3706	}
		3707
		3708	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3709	my $stem_symtab = *{$stem}{HASH};
		3710
		3711	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3712	or return;
		3713
		3714	# clear all symbols
		3715	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3716	for my $name (keys %$leaf_symtab) {
		3717	_gv_clear *{"$pkg$name"};
		3718	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3719	}
		3720	warn "cleared package $pkg\n";#d#
		3721	}
		3722
2496	sub reload() {	3723	sub do_reload_perl() {
2497	# can/must only be called in main	3724	# can/must only be called in main
2498	if ($Coro::current != $Coro::main) {	3725	if ($Coro::current != $Coro::main) {
2499	warn "can only reload from main coroutine";	3726	warn "can only reload from main coroutine";
2500	return;	3727	return;
2501	}	3728	}
2502		3729
		3730	return if $RELOAD++;
		3731
		3732	my $t1 = EV::time;
		3733
		3734	while ($RELOAD) {
2503	warn "reloading...";	3735	warn "reloading...";
2504		3736
2505	warn "entering sync_job";	3737	warn "entering sync_job";
2506		3738
2507	cf::sync_job {	3739	cf::sync_job {
2508	cf::write_runtime; # external watchdog should not bark	3740	cf::write_runtime_sync; # external watchdog should not bark
2509	cf::emergency_save;	3741	cf::emergency_save;
2510	cf::write_runtime; # external watchdog should not bark	3742	cf::write_runtime_sync; # external watchdog should not bark
2511		3743
2512	warn "syncing database to disk";	3744	warn "syncing database to disk";
2513	BDB::db_env_txn_checkpoint $DB_ENV;	3745	BDB::db_env_txn_checkpoint $DB_ENV;
2514		3746
2515	# if anything goes wrong in here, we should simply crash as we already saved	3747	# if anything goes wrong in here, we should simply crash as we already saved
2516		3748
2517	warn "cancelling all WF_AUTOCANCEL watchers";
2518	for (Event::all_watchers) {
2519	$_->cancel if $_->data & WF_AUTOCANCEL;
2520	}
2521
2522	warn "flushing outstanding aio requests";	3749	warn "flushing outstanding aio requests";
2523	for (;;) {
2524	BDB::flush;
2525	IO::AIO::flush;
2526	Coro::cede;
2527	last unless IO::AIO::nreqs || BDB::nreqs;	3750	while (IO::AIO::nreqs || BDB::nreqs) {
2528	warn "iterate...";	3751	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2529	}
2530
2531	++$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	}	3752	}
2553		3753
2554	warn "... nuking $pkg";	3754	warn "cancelling all extension coros";
2555	Symbol::delete_package $pkg;	3755	$_->cancel for values %EXT_CORO;
2556	}	3756	%EXT_CORO = ();
2557		3757
2558	warn "unloading all perl modules loaded from $LIBDIR";	3758	warn "removing commands";
2559	while (my ($k, $v) = each %INC) {	3759	%COMMAND = ();
2560	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2561		3760
		3761	warn "removing ext/exti commands";
		3762	%EXTCMD = ();
		3763	%EXTICMD = ();
		3764
		3765	warn "unloading/nuking all extensions";
		3766	for my $pkg (@EXTS) {
2562	warn "... unloading $k";	3767	warn "... unloading $pkg";
2563	delete $INC{$k};
2564		3768
2565	$k =~ s/\.pm$//;
2566	$k =~ s/\//::/g;
2567
2568	if (my $cb = $k->can ("unload_module")) {	3769	if (my $cb = $pkg->can ("unload")) {
		3770	eval {
2569	$cb->();	3771	$cb->($pkg);
		3772	1
		3773	} or warn "$pkg unloaded, but with errors: $@";
		3774	}
		3775
		3776	warn "... clearing $pkg";
		3777	clear_package $pkg;
2570	}	3778	}
2571		3779
2572	Symbol::delete_package $k;	3780	warn "unloading all perl modules loaded from $LIBDIR";
		3781	while (my ($k, $v) = each %INC) {
		3782	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3783
		3784	warn "... unloading $k";
		3785	delete $INC{$k};
		3786
		3787	$k =~ s/\.pm$//;
		3788	$k =~ s/\//::/g;
		3789
		3790	if (my $cb = $k->can ("unload_module")) {
		3791	$cb->();
		3792	}
		3793
		3794	clear_package $k;
2573	}	3795	}
2574		3796
2575	warn "getting rid of safe::, as good as possible";	3797	warn "getting rid of safe::, as good as possible";
2576	Symbol::delete_package "safe::$_"	3798	clear_package "safe::$_"
2577	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3799	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2578		3800
2579	warn "unloading cf.pm \"a bit\"";	3801	warn "unloading cf.pm \"a bit\"";
2580	delete $INC{"cf.pm"};	3802	delete $INC{"cf.pm"};
		3803	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2581		3804
2582	# don't, removes xs symbols, too,	3805	# don't, removes xs symbols, too,
2583	# and global variables created in xs	3806	# and global variables created in xs
2584	#Symbol::delete_package __PACKAGE__;	3807	#clear_package __PACKAGE__;
2585		3808
2586	warn "unload completed, starting to reload now";	3809	warn "unload completed, starting to reload now";
2587		3810
2588	warn "reloading cf.pm";	3811	warn "reloading cf.pm";
2589	require cf;	3812	require cf;
2590	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3813	cf::_connect_to_perl_1;
2591		3814
2592	warn "loading config and database again";	3815	warn "loading config and database again";
2593	cf::cfg_load;	3816	cf::reload_config;
2594		3817
2595	warn "loading extensions";	3818	warn "loading extensions";
2596	cf::load_extensions;	3819	cf::load_extensions;
2597		3820
		3821	if ($REATTACH_ON_RELOAD) {
2598	warn "reattaching attachments to objects/players";	3822	warn "reattaching attachments to objects/players";
2599	_global_reattach; # objects, sockets	3823	_global_reattach; # objects, sockets
2600	warn "reattaching attachments to maps";	3824	warn "reattaching attachments to maps";
2601	reattach $_ for values %MAP;	3825	reattach $_ for values %MAP;
2602	warn "reattaching attachments to players";	3826	warn "reattaching attachments to players";
2603	reattach $_ for values %PLAYER;	3827	reattach $_ for values %PLAYER;
		3828	}
2604		3829
2605	warn "loading reloadable resources";	3830	warn "running post_init jobs";
2606	reload_resources;	3831	(pop @POST_INIT)->(1) while @POST_INIT;
2607		3832
2608	warn "leaving sync_job";	3833	warn "leaving sync_job";
2609		3834
2610	1	3835	1
2611	} or do {	3836	} or do {
2612	warn $@;	3837	warn $@;
2613	warn "error while reloading, exiting.";	3838	cf::cleanup "error while reloading, exiting.";
2614	exit 1;	3839	};
		3840
		3841	warn "reloaded";
		3842	--$RELOAD;
		3843	}
		3844
		3845	$t1 = EV::time - $t1;
		3846	warn "reload completed in ${t1}s\n";
		3847	};
		3848
		3849	our $RELOAD_WATCHER; # used only during reload
		3850
		3851	sub reload_perl() {
		3852	# doing reload synchronously and two reloads happen back-to-back,
		3853	# coro crashes during coro_state_free->destroy here.
		3854
		3855	$RELOAD_WATCHER ||= cf::async {
		3856	Coro::AIO::aio_wait cache_extensions;
		3857
		3858	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3859	do_reload_perl;
		3860	undef $RELOAD_WATCHER;
		3861	};
2615	};	3862	};
2616		3863	}
2617	warn "reloaded";
2618	};
2619
2620	our $RELOAD_WATCHER; # used only during reload
2621		3864
2622	register_command "reload" => sub {	3865	register_command "reload" => sub {
2623	my ($who, $arg) = @_;	3866	my ($who, $arg) = @_;
2624		3867
2625	if ($who->flag (FLAG_WIZ)) {	3868	if ($who->flag (FLAG_WIZ)) {
2626	$who->message ("reloading server.");	3869	$who->message ("reloading server.");
2627		3870	async {
2628	# doing reload synchronously and two reloads happen back-to-back,	3871	$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;	3872	reload_perl;
2637	undef $RELOAD_WATCHER;
2638	},
2639	);	3873	};
2640	}	3874	}
2641	};	3875	};
2642		3876
2643	unshift @INC, $LIBDIR;	3877	unshift @INC, $LIBDIR;
2644		3878
…		…
2646		3880
2647	our @WAIT_FOR_TICK;	3881	our @WAIT_FOR_TICK;
2648	our @WAIT_FOR_TICK_BEGIN;	3882	our @WAIT_FOR_TICK_BEGIN;
2649		3883
2650	sub wait_for_tick {	3884	sub wait_for_tick {
2651	return unless $TICK_WATCHER->is_active;	3885	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3886
2652	my $signal = new Coro::Signal;	3887	my $signal = new Coro::Signal;
2653	push @WAIT_FOR_TICK, $signal;	3888	push @WAIT_FOR_TICK, $signal;
2654	$signal->wait;	3889	$signal->wait;
2655	}	3890	}
2656		3891
2657	sub wait_for_tick_begin {	3892	sub wait_for_tick_begin {
2658	return unless $TICK_WATCHER->is_active;	3893	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3894
2659	my $signal = new Coro::Signal;	3895	my $signal = new Coro::Signal;
2660	push @WAIT_FOR_TICK_BEGIN, $signal;	3896	push @WAIT_FOR_TICK_BEGIN, $signal;
2661	$signal->wait;	3897	$signal->wait;
2662	}	3898	}
2663		3899
2664	$TICK_WATCHER = Event->timer (	3900	sub tick {
2665	reentrant => 0,
2666	parked => 1,
2667	prio => 0,
2668	at => $NEXT_TICK || $TICK,
2669	data => WF_AUTOCANCEL,
2670	cb => sub {
2671	if ($Coro::current != $Coro::main) {	3901	if ($Coro::current != $Coro::main) {
2672	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3902	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2673	unless ++$bug_warning > 10;	3903	unless ++$bug_warning > 10;
2674	return;	3904	return;
2675	}	3905	}
2676		3906
2677	$NOW = Event::time;
2678
2679	cf::server_tick; # one server iteration	3907	cf::server_tick; # one server iteration
2680	$RUNTIME += $TICK;
2681	$NEXT_TICK += $TICK;
2682		3908
2683	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3909	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2684	$NEXT_RUNTIME_WRITE = $NOW + 10;	3910	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2685	Coro::async_pool {	3911	Coro::async_pool {
		3912	$Coro::current->{desc} = "runtime saver";
2686	write_runtime	3913	write_runtime_sync
2687	or warn "ERROR: unable to write runtime file: $!";	3914	or warn "ERROR: unable to write runtime file: $!";
2688	};
2689	}	3915	};
		3916	}
2690		3917
2691	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3918	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2692	$sig->send;	3919	$sig->send;
2693	}	3920	}
2694	while (my $sig = shift @WAIT_FOR_TICK) {	3921	while (my $sig = shift @WAIT_FOR_TICK) {
2695	$sig->send;	3922	$sig->send;
2696	}
2697
2698	# my $AFTER = Event::time;
2699	# warn $AFTER - $NOW;#d#
2700
2701	# if we are delayed by four ticks or more, skip them all
2702	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2703
2704	$TICK_WATCHER->at ($NEXT_TICK);
2705	$TICK_WATCHER->start;
2706	},	3923	}
2707	);	3924
		3925	$LOAD = ($NOW - $TICK_START) / $TICK;
		3926	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3927
		3928	if (0) {
		3929	if ($NEXT_TICK) {
		3930	my $jitter = $TICK_START - $NEXT_TICK;
		3931	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3932	warn "jitter $JITTER\n";#d#
		3933	}
		3934	}
		3935	}
2708		3936
2709	{	3937	{
2710	BDB::max_poll_time $TICK * 0.1;	3938	# configure BDB
2711	$BDB_POLL_WATCHER = Event->io (	3939
2712	reentrant => 0,
2713	fd => BDB::poll_fileno,
2714	poll => 'r',
2715	prio => 0,
2716	data => WF_AUTOCANCEL,
2717	cb => \&BDB::poll_cb,
2718	);
2719	BDB::min_parallel 8;	3940	BDB::min_parallel 8;
2720		3941	BDB::max_poll_reqs $TICK * 0.1;
2721	BDB::set_sync_prepare {	3942	$AnyEvent::BDB::WATCHER->priority (1);
2722	my $status;
2723	my $current = $Coro::current;
2724	(
2725	sub {
2726	$status = $!;
2727	$current->ready; undef $current;
2728	},
2729	sub {
2730	Coro::schedule while defined $current;
2731	$! = $status;
2732	},
2733	)
2734	};
2735		3943
2736	unless ($DB_ENV) {	3944	unless ($DB_ENV) {
2737	$DB_ENV = BDB::db_env_create;	3945	$DB_ENV = BDB::db_env_create;
		3946	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3947	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3948	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3949	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3950	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2738		3951
2739	cf::sync_job {	3952	cf::sync_job {
2740	eval {	3953	eval {
2741	BDB::db_env_open	3954	BDB::db_env_open
2742	$DB_ENV,	3955	$DB_ENV,
2743	$BDB_ENV_DIR,	3956	$BDBDIR,
2744	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3957	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2745	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3958	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2746	0666;	3959	0666;
2747		3960
2748	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3961	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2749
2750	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2751	$DB_ENV->set_lk_detect;
2752	};	3962	};
2753		3963
2754	cf::cleanup "db_env_open(db): $@" if $@;	3964	cf::cleanup "db_env_open(db): $@" if $@;
2755	};	3965	};
2756	}	3966	}
		3967
		3968	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3969	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3970	};
		3971	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3972	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3973	};
		3974	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3975	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3976	};
2757	}	3977	}
2758		3978
2759	{	3979	{
		3980	# configure IO::AIO
		3981
2760	IO::AIO::min_parallel 8;	3982	IO::AIO::min_parallel 8;
2761
2762	undef $Coro::AIO::WATCHER;
2763	IO::AIO::max_poll_time $TICK * 0.1;	3983	IO::AIO::max_poll_time $TICK * 0.1;
2764	$AIO_POLL_WATCHER = Event->io (	3984	undef $AnyEvent::AIO::WATCHER;
2765	reentrant => 0,
2766	data => WF_AUTOCANCEL,
2767	fd => IO::AIO::poll_fileno,
2768	poll => 'r',
2769	prio => 6,
2770	cb => \&IO::AIO::poll_cb,
2771	);
2772	}	3985	}
		3986
		3987	my $_log_backtrace;
		3988
		3989	sub _log_backtrace {
		3990	my ($msg, @addr) = @_;
		3991
		3992	$msg =~ s/\n//;
		3993
		3994	# limit the # of concurrent backtraces
		3995	if ($_log_backtrace < 2) {
		3996	++$_log_backtrace;
		3997	my $perl_bt = Carp::longmess $msg;
		3998	async {
		3999	$Coro::current->{desc} = "abt $msg";
		4000
		4001	my @bt = fork_call {
		4002	@addr = map { sprintf "%x", $_ } @addr;
		4003	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4004	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4005	or die "addr2line: $!";
		4006
		4007	my @funcs;
		4008	my @res = <$fh>;
		4009	chomp for @res;
		4010	while (@res) {
		4011	my ($func, $line) = splice @res, 0, 2, ();
		4012	push @funcs, "[$func] $line";
		4013	}
		4014
		4015	@funcs
		4016	};
		4017
		4018	LOG llevInfo, "[ABT] $perl_bt\n";
		4019	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4020	LOG llevInfo, "[ABT] $_\n" for @bt;
		4021	--$_log_backtrace;
		4022	};
		4023	} else {
		4024	LOG llevInfo, "[ABT] $msg\n";
		4025	LOG llevInfo, "[ABT] [suppressed]\n";
		4026	}
		4027	}
		4028
		4029	# load additional modules
		4030	require "cf/$_.pm" for @EXTRA_MODULES;
		4031	cf::_connect_to_perl_2;
2773		4032
2774	END { cf::emergency_save }	4033	END { cf::emergency_save }
2775		4034
2776	1	4035	1
2777		4036

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