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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.155 by root, Tue Jan 9 21:32:42 2007 UTC vs.
Revision 1.538 by root, Tue May 4 21:45:43 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
		56	use BDB ();
20	use Data::Dumper;	57	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	58	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
25	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
26		64
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		80
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
39		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
40	our @EVENT;	93	our @EVENT;
41	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
42		96
43	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
44	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE; # unused
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	121	our $NEXT_TICK;
46	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
47		130
48	our %CFG;	131	our %CFG;
49		132
50	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
52		136
53	our %PLAYER; # all users	137	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	138	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	139	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";
57	our %EXT_CORO; # coroutines bound to extensions
58		140
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	141	# used to convert map paths into valid unix filenames by replacing / by ∕
60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
61		153
62	binmode STDOUT;	154	binmode STDOUT;
63	binmode STDERR;	155	binmode STDERR;
64		156
65	# read virtual server time, if available	157	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
67	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
68	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
69	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
70	}	162	}
71		163
72	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
73	mkdir cf::localdir . "/" . cf::playerdir;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		165
78	# a special map that is always available	166	mkdir $_
79	our $LINK_MAP;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		168
80	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
		170
		171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
81		187
82	#############################################################################	188	#############################################################################
83		189
84	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
85		191
…		…
92	=item $cf::RUNTIME	198	=item $cf::RUNTIME
93		199
94	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
95	every server tick.	201	every server tick.
96		202
97	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
98		206
99	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
100	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
101		211
102	=item $cf::NOW	212	=item $cf::NOW
103		213
104	The time of the last (current) server tick.	214	The time of the last (current) server tick.
105		215
106	=item $cf::TICK	216	=item $cf::TICK
107		217
108	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
109		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
110	=item %cf::CFG	230	=item %cf::CFG
111		231
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
113	from wherever your confdir points to.	233	from wherever your confdir points to.
114		234
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	235	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		236
117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	238	returns directly I<after> the tick processing (and consequently, can only wake one process
119	processing has been done. Call C<< ->wait >> on them to maximise the	239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
120	window of cpu time available, or simply to synchronise to the server tick.	240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
121		252
122	=back	253	=back
123		254
124	=cut	255	=cut
125		256
126	BEGIN {	257	sub error(@) { LOG llevError, join "", @_ }
127	*CORE::GLOBAL::warn = sub {	258	sub warn (@) { LOG llevWarn , join "", @_ }
		259	sub info (@) { LOG llevInfo , join "", @_ }
		260	sub debug(@) { LOG llevDebug, join "", @_ }
		261	sub trace(@) { LOG llevTrace, join "", @_ }
		262
		263	$Coro::State::WARNHOOK = sub {
128	my $msg = join "", @_;	264	my $msg = join "", @_;
129	utf8::encode $msg;
130		265
131	$msg .= "\n"	266	$msg .= "\n"
132	unless $msg =~ /\n$/;	267	unless $msg =~ /\n$/;
133		268
		269	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		270
134	LOG llevError, $msg;	271	LOG llevWarn, $msg;
135	};	272	};
136	}	273
		274	$Coro::State::DIEHOOK = sub {
		275	return unless $^S eq 0; # "eq", not "=="
		276
		277	error Carp::longmess $_[0];
		278
		279	if (in_main) {#d#
		280	error "DIEHOOK called in main context, Coro bug?\n";#d#
		281	return;#d#
		282	}#d#
		283
		284	# kill coroutine otherwise
		285	Coro::terminate
		286	};
137		287
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	288	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	289	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	290	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	291	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	292	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		293	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
143	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	294	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
144		295
145	# we bless all objects into (empty) derived classes to force a method lookup	296	# we bless all objects into (empty) derived classes to force a method lookup
146	# within the Safe compartment.	297	# within the Safe compartment.
147	for my $pkg (qw(	298	for my $pkg (qw(
148	cf::global cf::attachable	299	cf::global cf::attachable
149	cf::object cf::object::player	300	cf::object cf::object::player
150	cf::client cf::player	301	cf::client cf::player
151	cf::arch cf::living	302	cf::arch cf::living
		303	cf::map cf::mapspace
152	cf::map cf::party cf::region	304	cf::party cf::region
153	)) {	305	)) {
154	no strict 'refs';
155	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	306	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
156	}	307	}
157		308
158	$Event::DIED = sub {	309	$EV::DIED = sub {
159	warn "error in event callback: @_";	310	Carp::cluck "error in event callback: @_";
160	};	311	};
161		312
162	my %ext_pkg;	313	#############################################################################
163	my @exts;
164	my @hook;
165		314
166	=head2 UTILITY FUNCTIONS	315	=head2 UTILITY FUNCTIONS
167		316
168	=over 4	317	=over 4
169		318
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	337	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	338	$d
190	} || "[unable to dump $_[0]: '$@']";	339	} || "[unable to dump $_[0]: '$@']";
191	}	340	}
192		341
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	342	=item $ref = cf::decode_json $json
196		343
197	Converts a JSON string into the corresponding perl data structure.	344	Converts a JSON string into the corresponding perl data structure.
198		345
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	346	=item $json = cf::encode_json $ref
207		347
208	Converts a perl data structure into its JSON representation.	348	Converts a perl data structure into its JSON representation.
209		349
210	=cut	350	=cut
211		351
212	sub to_json($) {	352	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	353
214	JSON::Syck::Dump $_[0]	354	sub encode_json($) { $json_coder->encode ($_[0]) }
		355	sub decode_json($) { $json_coder->decode ($_[0]) }
		356
		357	=item cf::post_init { BLOCK }
		358
		359	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		360	but I<before> the server starts ticking again.
		361
		362	The cdoeblock will have a single boolean argument to indicate whether this
		363	is a reload or not.
		364
		365	=cut
		366
		367	sub post_init(&) {
		368	push @POST_INIT, shift;
215	}	369	}
216		370
217	=item cf::lock_wait $string	371	=item cf::lock_wait $string
218		372
219	Wait until the given lock is available. See cf::lock_acquire.	373	Wait until the given lock is available. See cf::lock_acquire.
220		374
221	=item my $lock = cf::lock_acquire $string	375	=item my $lock = cf::lock_acquire $string
222		376
223	Wait until the given lock is available and then acquires it and returns	377	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	378	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	379	for example when the coroutine gets canceled), the lock is automatically
226	returned.	380	returned.
227		381
		382	Locks are *not* recursive, locking from the same coro twice results in a
		383	deadlocked coro.
		384
228	Lock names should begin with a unique identifier (for example, cf::map::find	385	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	386	uses map_find and cf::map::load uses map_load).
230		387
231	=cut	388	=item $locked = cf::lock_active $string
232		389
233	our %LOCK;	390	Return true if the lock is currently active, i.e. somebody has locked it.
		391
		392	=cut
		393
		394	our $LOCKS = new Coro::SemaphoreSet;
234		395
235	sub lock_wait($) {	396	sub lock_wait($) {
236	my ($key) = @_;	397	$LOCKS->wait ($_[0]);
237
238	# wait for lock, if any
239	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;
242	}
243	}	398	}
244		399
245	sub lock_acquire($) {	400	sub lock_acquire($) {
246	my ($key) = @_;	401	$LOCKS->guard ($_[0])
		402	}
247		403
248	# wait, to be sure we are not locked	404	sub lock_active($) {
249	lock_wait $key;	405	$LOCKS->count ($_[0]) < 1
250
251	$LOCK{$key} = [];
252
253	Coro::guard {
254	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };
256	}
257	}	406	}
258		407
259	sub freeze_mainloop {	408	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	409	tick_inhibit_inc;
261		410
262	my $guard = Coro::guard { $TICK_WATCHER->start };	411	&Guard::guard (\&tick_inhibit_dec);
263	$TICK_WATCHER->stop;	412	}
264	$guard	413
		414	=item cf::periodic $interval, $cb
		415
		416	Like EV::periodic, but randomly selects a starting point so that the actions
		417	get spread over time.
		418
		419	=cut
		420
		421	sub periodic($$) {
		422	my ($interval, $cb) = @_;
		423
		424	my $start = rand List::Util::min 180, $interval;
		425
		426	EV::periodic $start, $interval, 0, $cb
		427	}
		428
		429	=item cf::get_slot $time[, $priority[, $name]]
		430
		431	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		432	This call blocks and returns only when you have at least C<$time> seconds
		433	of cpu time till the next tick. The slot is only valid till the next cede.
		434
		435	The optional C<$name> can be used to identify the job to run. It might be
		436	used for statistical purposes and should identify the same time-class.
		437
		438	Useful for short background jobs.
		439
		440	=cut
		441
		442	our @SLOT_QUEUE;
		443	our $SLOT_QUEUE;
		444	our $SLOT_DECAY = 0.9;
		445
		446	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		447	$SLOT_QUEUE = Coro::async {
		448	$Coro::current->desc ("timeslot manager");
		449
		450	my $signal = new Coro::Signal;
		451	my $busy;
		452
		453	while () {
		454	next_job:
		455
		456	my $avail = cf::till_tick;
		457
		458	for (0 .. $#SLOT_QUEUE) {
		459	if ($SLOT_QUEUE[$_][0] <= $avail) {
		460	$busy = 0;
		461	my $job = splice @SLOT_QUEUE, $_, 1, ();
		462	$job->[2]->send;
		463	Coro::cede;
		464	goto next_job;
		465	} else {
		466	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		467	}
		468	}
		469
		470	if (@SLOT_QUEUE) {
		471	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		472	push @cf::WAIT_FOR_TICK, $signal;
		473	$signal->wait;
		474	} else {
		475	$busy = 0;
		476	Coro::schedule;
		477	}
		478	}
		479	};
		480
		481	sub get_slot($;$$) {
		482	return if tick_inhibit || $Coro::current == $Coro::main;
		483
		484	my ($time, $pri, $name) = @_;
		485
		486	$time = clamp $time, 0.01, $TICK * .6;
		487
		488	my $sig = new Coro::Signal;
		489
		490	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		491	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		492	$SLOT_QUEUE->ready;
		493	$sig->wait;
265	}	494	}
266		495
267	=item cf::async { BLOCK }	496	=item cf::async { BLOCK }
268		497
269	Currently the same as Coro::async_pool, meaning you cannot use	498	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		503
275	BEGIN { *async = \&Coro::async_pool }	504	BEGIN { *async = \&Coro::async_pool }
276		505
277	=item cf::sync_job { BLOCK }	506	=item cf::sync_job { BLOCK }
278		507
279	The design of crossfire+ requires that the main coro ($Coro::main) is	508	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	509	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	510	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		511	acceptable.
282		512
283	If it must be done, put the blocking parts into C<sync_job>. This will run	513	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	514	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	515	server will be frozen during this time, so the block should either finish
286	fast or be very important.	516	fast or be very important.
…		…
288	=cut	518	=cut
289		519
290	sub sync_job(&) {	520	sub sync_job(&) {
291	my ($job) = @_;	521	my ($job) = @_;
292		522
293	if ($Coro::current == $Coro::main) {	523	if (in_main) {
		524	my $time = AE::time;
		525
294	# this is the main coro, too bad, we have to block	526	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	527	# till the operation succeeds, freezing the server :/
296		528
297	# TODO: use suspend/resume instead	529	#LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	530
299	my $freeze_guard = freeze_mainloop;	531	my $freeze_guard = freeze_mainloop;
300		532
301	my $busy = 1;	533	my $busy = 1;
302	my @res;	534	my @res;
303		535
304	(async {	536	(async {
		537	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	538	@res = eval { $job->() };
306	warn $@ if $@;	539	error $@ if $@;
307	undef $busy;	540	undef $busy;
308	})->prio (Coro::PRIO_MAX);	541	})->prio (Coro::PRIO_MAX);
309		542
310	while ($busy) {	543	while ($busy) {
311	Coro::cede or Event::one_event;	544	if (Coro::nready) {
		545	Coro::cede_notself;
		546	} else {
		547	EV::loop EV::LOOP_ONESHOT;
312	}	548	}
		549	}
		550
		551	my $time = AE::time - $time;
		552
		553	$TICK_START += $time; # do not account sync jobs to server load
313		554
314	wantarray ? @res : $res[0]	555	wantarray ? @res : $res[0]
315	} else {	556	} else {
316	# we are in another coroutine, how wonderful, everything just works	557	# we are in another coroutine, how wonderful, everything just works
317		558
…		…
319	}	560	}
320	}	561	}
321		562
322	=item $coro = cf::async_ext { BLOCK }	563	=item $coro = cf::async_ext { BLOCK }
323		564
324	Like async, but this coro is automcatially being canceled when the	565	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	566	extension calling this is being unloaded.
326		567
327	=cut	568	=cut
328		569
329	sub async_ext(&) {	570	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	578	$EXT_CORO{$coro+0} = $coro;
338		579
339	$coro	580	$coro
340	}	581	}
341		582
342	sub write_runtime {	583	=item fork_call { }, $args
343	my $runtime = cf::localdir . "/runtime";
344		584
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	585	Executes the given code block with the given arguments in a seperate
346	or return;	586	process, returning the results. Everything must be serialisable with
		587	Coro::Storable. May, of course, block. Note that the executed sub may
		588	never block itself or use any form of event handling.
347		589
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	590	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		591
352	aio_fsync $fh	592	sub fork_call(&@) {
353	and return;	593	my ($cb, @args) = @_;
354		594
355	close $fh	595	# we seemingly have to make a local copy of the whole thing,
356	or return;	596	# otherwise perl prematurely frees the stuff :/
		597	# TODO: investigate and fix (likely this will be rather laborious)
357		598
358	aio_rename "$runtime~", $runtime	599	my @res = Coro::Util::fork_eval {
359	and return;	600	reset_signals;
		601	&$cb
		602	}, @args;
360		603
		604	wantarray ? @res : $res[-1]
		605	}
		606
		607	sub objinfo {
361	1	608	(
		609	"counter value" => cf::object::object_count,
		610	"objects created" => cf::object::create_count,
		611	"objects destroyed" => cf::object::destroy_count,
		612	"freelist size" => cf::object::free_count,
		613	"allocated objects" => cf::object::objects_size,
		614	"active objects" => cf::object::actives_size,
		615	)
		616	}
		617
		618	=item $coin = coin_from_name $name
		619
		620	=cut
		621
		622	our %coin_alias = (
		623	"silver" => "silvercoin",
		624	"silvercoin" => "silvercoin",
		625	"silvercoins" => "silvercoin",
		626	"gold" => "goldcoin",
		627	"goldcoin" => "goldcoin",
		628	"goldcoins" => "goldcoin",
		629	"platinum" => "platinacoin",
		630	"platinumcoin" => "platinacoin",
		631	"platinumcoins" => "platinacoin",
		632	"platina" => "platinacoin",
		633	"platinacoin" => "platinacoin",
		634	"platinacoins" => "platinacoin",
		635	"royalty" => "royalty",
		636	"royalties" => "royalty",
		637	);
		638
		639	sub coin_from_name($) {
		640	$coin_alias{$_[0]}
		641	? cf::arch::find $coin_alias{$_[0]}
		642	: undef
		643	}
		644
		645	=item $value = cf::db_get $family => $key
		646
		647	Returns a single value from the environment database.
		648
		649	=item cf::db_put $family => $key => $value
		650
		651	Stores the given C<$value> in the family. It can currently store binary
		652	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		653
		654	=item $db = cf::db_table "name"
		655
		656	Create and/or open a new database table. The string must not be "db" and must be unique
		657	within each server.
		658
		659	=cut
		660
		661	sub db_table($) {
		662	cf::error "db_get called from main context"
		663	if $Coro::current == $Coro::main;
		664
		665	my ($name) = @_;
		666	my $db = BDB::db_create $DB_ENV;
		667
		668	eval {
		669	$db->set_flags (BDB::CHKSUM);
		670
		671	utf8::encode $name;
		672	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		673	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		674	cf::cleanup "db_open(db): $!" if $!;
		675	};
		676	cf::cleanup "db_open(db): $@" if $@;
		677
		678	$db
		679	}
		680
		681	our $DB;
		682
		683	sub db_init {
		684	$DB ||= db_table "db";
		685	}
		686
		687	sub db_get($$) {
		688	my $key = "$_[0]/$_[1]";
		689
		690	cf::error "db_get called from main context"
		691	if $Coro::current == $Coro::main;
		692
		693	BDB::db_get $DB, undef, $key, my $data;
		694
		695	$! ? ()
		696	: $data
		697	}
		698
		699	sub db_put($$$) {
		700	BDB::dbreq_pri 4;
		701	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		702	}
		703
		704	=item cf::cache $id => [$paths...], $processversion => $process
		705
		706	Generic caching function that returns the value of the resource $id,
		707	caching and regenerating as required.
		708
		709	This function can block.
		710
		711	=cut
		712
		713	sub cache {
		714	my ($id, $src, $processversion, $process) = @_;
		715
		716	my $meta =
		717	join "\x00",
		718	$processversion,
		719	map {
		720	aio_stat $_
		721	and Carp::croak "$_: $!";
		722
		723	($_, (stat _)[7,9])
		724	} @$src;
		725
		726	my $dbmeta = db_get cache => "$id/meta";
		727	if ($dbmeta ne $meta) {
		728	# changed, we may need to process
		729
		730	my @data;
		731	my $md5;
		732
		733	for (0 .. $#$src) {
		734	0 <= aio_load $src->[$_], $data[$_]
		735	or Carp::croak "$src->[$_]: $!";
		736	}
		737
		738	# if processing is expensive, check
		739	# checksum first
		740	if (1) {
		741	$md5 =
		742	join "\x00",
		743	$processversion,
		744	map {
		745	cf::cede_to_tick;
		746	($src->[$_], Digest::MD5::md5_hex $data[$_])
		747	} 0.. $#$src;
		748
		749
		750	my $dbmd5 = db_get cache => "$id/md5";
		751	if ($dbmd5 eq $md5) {
		752	db_put cache => "$id/meta", $meta;
		753
		754	return db_get cache => "$id/data";
		755	}
		756	}
		757
		758	my $t1 = Time::HiRes::time;
		759	my $data = $process->(\@data);
		760	my $t2 = Time::HiRes::time;
		761
		762	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		763
		764	db_put cache => "$id/data", $data;
		765	db_put cache => "$id/md5" , $md5;
		766	db_put cache => "$id/meta", $meta;
		767
		768	return $data;
		769	}
		770
		771	db_get cache => "$id/data"
		772	}
		773
		774	=item cf::datalog type => key => value, ...
		775
		776	Log a datalog packet of the given type with the given key-value pairs.
		777
		778	=cut
		779
		780	sub datalog($@) {
		781	my ($type, %kv) = @_;
		782	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
362	}	783	}
363		784
364	=back	785	=back
365		786
366	=cut	787	=cut
367		788
368	#############################################################################	789	#############################################################################
369		790
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489
490	#############################################################################
491
492	=head2 ATTACHABLE OBJECTS	791	=head2 ATTACHABLE OBJECTS
493		792
494	Many objects in crossfire are so-called attachable objects. That means you can	793	Many objects in deliantra are so-called attachable objects. That means you can
495	attach callbacks/event handlers (a collection of which is called an "attachment")	794	attach callbacks/event handlers (a collection of which is called an "attachment")
496	to it. All such attachable objects support the following methods.	795	to it. All such attachable objects support the following methods.
497		796
498	In the following description, CLASS can be any of C<global>, C<object>	797	In the following description, CLASS can be any of C<global>, C<object>
499	C<player>, C<client> or C<map> (i.e. the attachable objects in	798	C<player>, C<client> or C<map> (i.e. the attachable objects in
500	crossfire+).	799	Deliantra).
501		800
502	=over 4	801	=over 4
503		802
504	=item $attachable->attach ($attachment, key => $value...)	803	=item $attachable->attach ($attachment, key => $value...)
505		804
…		…
549	=item cf::CLASS::attachment $name, ...	848	=item cf::CLASS::attachment $name, ...
550		849
551	Register an attachment by C<$name> through which attachable objects of the	850	Register an attachment by C<$name> through which attachable objects of the
552	given CLASS can refer to this attachment.	851	given CLASS can refer to this attachment.
553		852
554	Some classes such as crossfire maps and objects can specify attachments	853	Some classes such as deliantra maps and objects can specify attachments
555	that are attached at load/instantiate time, thus the need for a name.	854	that are attached at load/instantiate time, thus the need for a name.
556		855
557	These calls expect any number of the following handler/hook descriptions:	856	These calls expect any number of the following handler/hook descriptions:
558		857
559	=over 4	858	=over 4
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	918	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	919	our @CB_MAP = ();
621		920
622	my %attachment;	921	my %attachment;
623		922
		923	sub cf::attachable::thawer_merge {
		924	# simply override everything except _meta
		925	local $_[0]{_meta};
		926	%{$_[0]} = %{$_[1]};
		927	}
		928
624	sub _attach_cb($$$$) {	929	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	930	my ($registry, $event, $prio, $cb) = @_;
626		931
627	use sort 'stable';	932	use sort 'stable';
628		933
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	967	$registry = $CB_TYPE[$object_type] ||= [];
663		968
664	} elsif ($type eq "subtype") {	969	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	970	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	971	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	972	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		973
669	} elsif ($type eq "package") {	974	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	975	my $pkg = shift @arg;
671		976
672	while (my ($name, $id) = each %cb_id) {	977	while (my ($name, $id) = each %cb_id) {
…		…
677		982
678	} elsif (exists $cb_id{$type}) {	983	} elsif (exists $cb_id{$type}) {
679	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	984	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
680		985
681	} elsif (ref $type) {	986	} elsif (ref $type) {
682	warn "attaching objects not supported, ignoring.\n";	987	error "attaching objects not supported, ignoring.\n";
683		988
684	} else {	989	} else {
685	shift @arg;	990	shift @arg;
686	warn "attach argument '$type' not supported, ignoring.\n";	991	error "attach argument '$type' not supported, ignoring.\n";
687	}	992	}
688	}	993	}
689	}	994	}
690		995
691	sub _object_attach {	996	sub _object_attach {
…		…
701	_attach $registry, $klass, @attach;	1006	_attach $registry, $klass, @attach;
702	}	1007	}
703		1008
704	$obj->{$name} = \%arg;	1009	$obj->{$name} = \%arg;
705	} else {	1010	} else {
706	warn "object uses attachment '$name' that is not available, postponing.\n";	1011	info "object uses attachment '$name' which is not available, postponing.\n";
707	}	1012	}
708		1013
709	$obj->{_attachment}{$name} = undef;	1014	$obj->{_attachment}{$name} = undef;
710	}	1015	}
711		1016
…		…
713	if (ref $_[0]) {	1018	if (ref $_[0]) {
714	_object_attach @_;	1019	_object_attach @_;
715	} else {	1020	} else {
716	_attach shift->_attach_registry, @_;	1021	_attach shift->_attach_registry, @_;
717	}	1022	}
		1023	_recalc_want;
718	};	1024	};
719		1025
720	# all those should be optimised	1026	# all those should be optimised
721	sub cf::attachable::detach {	1027	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	1028	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	1031	delete $obj->{_attachment}{$name};
726	reattach ($obj);	1032	reattach ($obj);
727	} else {	1033	} else {
728	Carp::croak "cannot, currently, detach class attachments";	1034	Carp::croak "cannot, currently, detach class attachments";
729	}	1035	}
		1036	_recalc_want;
730	};	1037	};
731		1038
732	sub cf::attachable::attached {	1039	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	1040	my ($obj, $name) = @_;
734		1041
…		…
749	";	1056	";
750	die if $@;	1057	die if $@;
751	}	1058	}
752		1059
753	our $override;	1060	our $override;
754	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1061	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
755		1062
756	sub override {	1063	sub override {
757	$override = 1;	1064	$override = 1;
758	@invoke_results = ();	1065	@INVOKE_RESULTS = (@_);
759	}	1066	}
760		1067
761	sub do_invoke {	1068	sub do_invoke {
762	my $event = shift;	1069	my $event = shift;
763	my $callbacks = shift;	1070	my $callbacks = shift;
764		1071
765	@invoke_results = ();	1072	@INVOKE_RESULTS = ();
766		1073
767	local $override;	1074	local $override;
768		1075
769	for (@$callbacks) {	1076	for (@$callbacks) {
770	eval { &{$_->[1]} };	1077	eval { &{$_->[1]} };
771		1078
772	if ($@) {	1079	if ($@) {
773	warn "$@";
774	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1080	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
775	override;	1081	override;
776	}	1082	}
777		1083
778	return 1 if $override;	1084	return 1 if $override;
779	}	1085	}
780		1086
781	0	1087	0
782	}	1088	}
783		1089
784	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1090	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
785		1091
786	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1092	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
787		1093
788	Generate an object-specific event with the given arguments.	1094	Generate an object-specific event with the given arguments.
789		1095
790	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1096	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
791	removed in future versions), and there is no public API to access override	1097	removed in future versions), and there is no public API to access override
792	results (if you must, access C<@cf::invoke_results> directly).	1098	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
793		1099
794	=back	1100	=back
795		1101
796	=cut	1102	=cut
797		1103
798	#############################################################################	1104	#############################################################################
799	# object support	1105	# object support
		1106
		1107	sub _object_equal($$);
		1108	sub _object_equal($$) {
		1109	my ($a, $b) = @_;
		1110
		1111	return 0 unless (ref $a) eq (ref $b);
		1112
		1113	if ("HASH" eq ref $a) {
		1114	my @ka = keys %$a;
		1115	my @kb = keys %$b;
		1116
		1117	return 0 if @ka != @kb;
		1118
		1119	for (0 .. $#ka) {
		1120	return 0 unless $ka[$_] eq $kb[$_];
		1121	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1122	}
		1123
		1124	} elsif ("ARRAY" eq ref $a) {
		1125
		1126	return 0 if @$a != @$b;
		1127
		1128	for (0 .. $#$a) {
		1129	return 0 unless _object_equal $a->[$_], $b->[$_];
		1130	}
		1131
		1132	} elsif ($a ne $b) {
		1133	return 0;
		1134	}
		1135
		1136	1
		1137	}
		1138
		1139	our $SLOW_MERGES;#d#
		1140	sub _can_merge {
		1141	my ($ob1, $ob2) = @_;
		1142
		1143	++$SLOW_MERGES;#d#
		1144
		1145	# we do the slow way here
		1146	return _object_equal $ob1, $ob2
		1147	}
800		1148
801	sub reattach {	1149	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	1150	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	1151	my ($obj) = @_;
		1152
		1153	# no longer needed after getting rid of delete_package?
		1154	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		1155
805	my $registry = $obj->registry;	1156	my $registry = $obj->registry;
806		1157
807	@$registry = ();	1158	@$registry = ();
808		1159
…		…
813	for (@$attach) {	1164	for (@$attach) {
814	my ($klass, @attach) = @$_;	1165	my ($klass, @attach) = @$_;
815	_attach $registry, $klass, @attach;	1166	_attach $registry, $klass, @attach;
816	}	1167	}
817	} else {	1168	} else {
818	warn "object uses attachment '$name' that is not available, postponing.\n";	1169	info "object uses attachment '$name' that is not available, postponing.\n";
819	}	1170	}
820	}	1171	}
821	}	1172	}
822		1173
823	cf::attachable->attach (	1174	cf::attachable->attach (
824	prio => -1000000,	1175	prio => -1000000,
825	on_instantiate => sub {	1176	on_instantiate => sub {
826	my ($obj, $data) = @_;	1177	my ($obj, $data) = @_;
827		1178
828	$data = from_json $data;	1179	$data = decode_json $data;
829		1180
830	for (@$data) {	1181	for (@$data) {
831	my ($name, $args) = @$_;	1182	my ($name, $args) = @$_;
832		1183
833	$obj->attach ($name, %{$args || {} });	1184	$obj->attach ($name, %{$args || {} });
…		…
849	sub object_freezer_save {	1200	sub object_freezer_save {
850	my ($filename, $rdata, $objs) = @_;	1201	my ($filename, $rdata, $objs) = @_;
851		1202
852	sync_job {	1203	sync_job {
853	if (length $$rdata) {	1204	if (length $$rdata) {
		1205	utf8::decode (my $decname = $filename);
854	warn sprintf "saving %s (%d,%d)\n",	1206	trace sprintf "saving %s (%d,%d)\n",
855	$filename, length $$rdata, scalar @$objs;	1207	$decname, length $$rdata, scalar @$objs
		1208	if $VERBOSE_IO;
856		1209
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1210	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	1211	aio_chmod $fh, SAVE_MODE;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1212	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1213	if ($cf::USE_FSYNC) {
		1214	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;
860	aio_fsync $fh;	1215	aio_fsync $fh;
		1216	}
861	close $fh;	1217	aio_close $fh;
862		1218
863	if (@$objs) {	1219	if (@$objs) {
864	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1220	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
865	chmod SAVE_MODE, $fh;	1221	aio_chmod $fh, SAVE_MODE;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	1222	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	1223	aio_write $fh, 0, (length $data), $data, 0;
		1224	if ($cf::USE_FSYNC) {
		1225	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;
868	aio_fsync $fh;	1226	aio_fsync $fh;
		1227	}
869	close $fh;	1228	aio_close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	1229	aio_rename "$filename.pst~", "$filename.pst";
871	}	1230	}
872	} else {	1231	} else {
873	aio_unlink "$filename.pst";	1232	aio_unlink "$filename.pst";
874	}	1233	}
875		1234
876	aio_rename "$filename~", $filename;	1235	aio_rename "$filename~", $filename;
		1236
		1237	$filename =~ s%/[^/]+$%%;
		1238	aio_pathsync $filename if $cf::USE_FSYNC;
877	} else {	1239	} else {
878	warn "FATAL: $filename~: $!\n";	1240	error "unable to save objects: $filename~: $!\n";
879	}	1241	}
880	} else {	1242	} else {
881	aio_unlink $filename;	1243	aio_unlink $filename;
882	aio_unlink "$filename.pst";	1244	aio_unlink "$filename.pst";
883	}	1245	}
884	}	1246	};
885	}	1247	}
886		1248
887	sub object_freezer_as_string {	1249	sub object_freezer_as_string {
888	my ($rdata, $objs) = @_;	1250	my ($rdata, $objs) = @_;
889		1251
…		…
901	or return;	1263	or return;
902		1264
903	unless (aio_stat "$filename.pst") {	1265	unless (aio_stat "$filename.pst") {
904	(aio_load "$filename.pst", $av) >= 0	1266	(aio_load "$filename.pst", $av) >= 0
905	or return;	1267	or return;
		1268
906	$av = eval { (Storable::thaw $av)->{objs} };	1269	my $st = eval { Coro::Storable::thaw $av };
		1270	$av = $st->{objs};
907	}	1271	}
908		1272
		1273	utf8::decode (my $decname = $filename);
909	warn sprintf "loading %s (%d)\n",	1274	trace sprintf "loading %s (%d,%d)\n",
910	$filename, length $data, scalar @{$av || []};#d#	1275	$decname, length $data, scalar @{$av || []}
		1276	if $VERBOSE_IO;
		1277
911	return ($data, $av);	1278	($data, $av)
912	}	1279	}
		1280
		1281	=head2 COMMAND CALLBACKS
		1282
		1283	=over 4
		1284
		1285	=cut
913		1286
914	#############################################################################	1287	#############################################################################
915	# command handling &c	1288	# command handling &c
916		1289
917	=item cf::register_command $name => \&callback($ob,$args);	1290	=item cf::register_command $name => \&callback($ob,$args);
…		…
930	push @{ $COMMAND{$name} }, [$caller, $cb];	1303	push @{ $COMMAND{$name} }, [$caller, $cb];
931	}	1304	}
932		1305
933	=item cf::register_extcmd $name => \&callback($pl,$packet);	1306	=item cf::register_extcmd $name => \&callback($pl,$packet);
934		1307
935	Register a callbackf ro execution when the client sends an extcmd packet.	1308	Register a callback for execution when the client sends an (synchronous)
		1309	extcmd packet. Ext commands will be processed in the order they are
		1310	received by the server, like other user commands. The first argument is
		1311	the logged-in player. Ext commands can only be processed after a player
		1312	has logged in successfully.
936		1313
937	If the callback returns something, it is sent back as if reply was being	1314	If the callback returns something, it is sent back as if reply was being
938	called.	1315	called.
939		1316
		1317	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1318
		1319	Register a callback for execution when the client sends an (asynchronous)
		1320	exticmd packet. Exti commands are processed by the server as soon as they
		1321	are received, i.e. out of order w.r.t. other commands. The first argument
		1322	is a client socket. Exti commands can be received anytime, even before
		1323	log-in.
		1324
		1325	If the callback returns something, it is sent back as if reply was being
		1326	called.
		1327
940	=cut	1328	=cut
941		1329
942	sub register_extcmd {	1330	sub register_extcmd {
943	my ($name, $cb) = @_;	1331	my ($name, $cb) = @_;
944		1332
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	1333	$EXTCMD{$name} = $cb;
949	}	1334	}
		1335
		1336	sub register_exticmd {
		1337	my ($name, $cb) = @_;
		1338
		1339	$EXTICMD{$name} = $cb;
		1340	}
		1341
		1342	use File::Glob ();
950		1343
951	cf::player->attach (	1344	cf::player->attach (
952	on_command => sub {	1345	on_unknown_command => sub {
953	my ($pl, $name, $params) = @_;	1346	my ($pl, $name, $params) = @_;
954		1347
955	my $cb = $COMMAND{$name}	1348	my $cb = $COMMAND{$name}
956	or return;	1349	or return;
957		1350
…		…
962	cf::override;	1355	cf::override;
963	},	1356	},
964	on_extcmd => sub {	1357	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1358	my ($pl, $buf) = @_;
966		1359
967	my $msg = eval { from_json $buf };	1360	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1361
969	if (ref $msg) {	1362	if (ref $msg) {
		1363	my ($type, $reply, @payload) =
		1364	"ARRAY" eq ref $msg
		1365	? @$msg
		1366	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1367
		1368	my @reply;
		1369
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1370	if (my $cb = $EXTCMD{$type}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	1371	@reply = $cb->($pl, @payload);
972	$pl->ext_reply ($msg->{msgid}, %reply);
973	}
974	}	1372	}
		1373
		1374	$pl->ext_reply ($reply, @reply)
		1375	if $reply;
		1376
975	} else {	1377	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1378	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1379	}
978		1380
979	cf::override;	1381	cf::override;
980	},	1382	},
981	);	1383	);
982		1384
983	sub register {	1385	# "readahead" all extensions
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {	1386	sub cache_extensions {
990	my ($path) = @_;	1387	my $grp = IO::AIO::aio_group;
991		1388
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1389	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
993	my $base = $1;	1390	for (grep /\.ext$/, @{$_[0]}) {
994	my $pkg = $1;	1391	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
995	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";
997
998	warn "loading '$path' into '$pkg'\n";
999
1000	open my $fh, "<:utf8", $path
1001	or die "$path: $!";
1002
1003	my $source =
1004	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })
1007	. "\n};\n1";
1008
1009	eval $source
1010	or die $@ ? "$path: $@\n"
1011	: "extension disabled.\n";
1012
1013	push @exts, $pkg;
1014	$ext_pkg{$base} = $pkg;
1015
1016	# no strict 'refs';
1017	# @{"$pkg\::ISA"} = ext::;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }
1032
1033	# remove commands
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}	1392	}
1042	}	1393	};
1043		1394
1044	# remove extcmds	1395	$grp
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}	1396	}
1058		1397
1059	sub load_extensions {	1398	sub load_extensions {
		1399	info "loading extensions...";
		1400
		1401	cf::sync_job {
		1402	my %todo;
		1403
1060	for my $ext (<$LIBDIR/*.ext>) {	1404	for my $path (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	1405	next unless -r $path;
1062	eval {	1406
1063	load_extension $ext;	1407	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1408	my $base = $1;
		1409	my $pkg = $1;
		1410	$pkg =~ s/[^[:word:]]/_/g;
		1411	$pkg = "ext::$pkg";
		1412
		1413	open my $fh, "<:utf8", $path
		1414	or die "$path: $!";
		1415
		1416	my $source = do { local $/; <$fh> };
		1417
		1418	my %ext = (
		1419	path => $path,
		1420	base => $base,
		1421	pkg => $pkg,
		1422	);
		1423
		1424	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1425	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1426
		1427	$ext{source} =
		1428	"package $pkg; use common::sense;\n"
		1429	. "#line 1 \"$path\"\n{\n"
		1430	. $source
		1431	. "\n};\n1";
		1432
		1433	$todo{$base} = \%ext;
		1434	}
		1435
		1436	my $pass = 0;
		1437	my %done;
		1438	while (%todo) {
		1439	my $progress;
		1440
		1441	++$pass;
		1442
		1443	ext:
		1444	while (my ($k, $v) = each %todo) {
		1445	for (split /,\s*/, $v->{meta}{depends}) {
		1446	next ext
		1447	unless exists $done{$_};
		1448	}
		1449
		1450	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1451
		1452	my $active = eval $v->{source};
		1453
		1454	if (length $@) {
		1455	error "$v->{path}: $@\n";
		1456	undef $@; # work around perl 5.10.0 utf-8 caching bug
		1457
		1458	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1459	if exists $v->{meta}{mandatory};
		1460
		1461	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1462	delete $todo{$k};
		1463	} else {
		1464	$done{$k} = delete $todo{$k};
		1465	push @EXTS, $v->{pkg};
		1466	$progress = 1;
		1467
		1468	info "$v->{base}: extension inactive.\n"
		1469	unless $active;
		1470	}
1064	1	1471	}
1065	} or warn "$ext not loaded: $@";	1472
		1473	unless ($progress) {
		1474	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1475
		1476	while (my ($k, $v) = each %todo) {
		1477	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1478	if exists $v->{meta}{mandatory};
		1479	}
		1480	}
		1481	}
1066	}	1482	};
1067	}	1483	}
1068		1484
1069	#############################################################################	1485	#############################################################################
1070	# load/save/clean perl data associated with a map
1071		1486
1072	*cf::mapsupport::on_clean = sub {	1487	=back
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		1488
1085	=head2 CORE EXTENSIONS	1489	=head2 CORE EXTENSIONS
1086		1490
1087	Functions and methods that extend core crossfire objects.	1491	Functions and methods that extend core deliantra objects.
1088		1492
1089	=cut	1493	=cut
1090		1494
1091	package cf::player;	1495	package cf::player;
1092		1496
…		…
1094		1498
1095	=head3 cf::player	1499	=head3 cf::player
1096		1500
1097	=over 4	1501	=over 4
1098		1502
		1503	=item cf::player::num_playing
		1504
		1505	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1506
		1507	=cut
		1508
		1509	sub num_playing {
		1510	scalar grep
		1511	$_->ob->map
		1512	&& !$_->hidden
		1513	&& !$_->ob->flag (cf::FLAG_WIZ),
		1514	cf::player::list
		1515	}
		1516
1099	=item cf::player::find $login	1517	=item cf::player::find $login
1100		1518
1101	Returns the given player object, loading it if necessary (might block).	1519	Returns the given player object, loading it if necessary (might block).
1102		1520
1103	=cut	1521	=cut
1104		1522
1105	sub playerdir($) {	1523	sub playerdir($) {
1106	cf::localdir	1524	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1525	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1526	}
1112		1527
1113	sub path($) {	1528	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1529	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1530
1116	(playerdir $login) . "/$login.pl"	1531	(playerdir $login) . "/playerdata"
1117	}	1532	}
1118		1533
1119	sub find_active($) {	1534	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1535	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1536	and $cf::PLAYER{$_[0]}->active
…		…
1124		1539
1125	sub exists($) {	1540	sub exists($) {
1126	my ($login) = @_;	1541	my ($login) = @_;
1127		1542
1128	$cf::PLAYER{$login}	1543	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1544	or !aio_stat path $login
1130	}	1545	}
1131		1546
1132	sub find($) {	1547	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1548	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1549	my $login = $_[0];
1135		1550
1136	my $guard = cf::lock_acquire "user_find:$login";	1551	my $guard = cf::lock_acquire "user_find:$login";
1137		1552
1138	$cf::PLAYER{$_[0]} || do {	1553	$cf::PLAYER{$_[0]} || do {
1139	my $pl = load_pl path $login	1554	# rename old playerfiles to new ones
		1555	#TODO: remove when no longer required
		1556	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1557	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1558	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1559	aio_unlink +(playerdir $login) . "/$login.pl";
		1560
		1561	my $f = new_from_file cf::object::thawer path $login
1140	or return;	1562	or return;
		1563
		1564	my $pl = cf::player::load_pl $f
		1565	or return;
		1566
		1567	local $cf::PLAYER_LOADING{$login} = $pl;
		1568	$f->resolve_delayed_derefs;
1141	$cf::PLAYER{$login} = $pl	1569	$cf::PLAYER{$login} = $pl
1142	}	1570	}
1143	}	1571	}
1144	}	1572	}
		1573
		1574	cf::player->attach (
		1575	on_load => sub {
		1576	my ($pl, $path) = @_;
		1577
		1578	# restore slots saved in save, below
		1579	my $slots = delete $pl->{_slots};
		1580
		1581	$pl->ob->current_weapon ($slots->[0]);
		1582	$pl->combat_ob ($slots->[1]);
		1583	$pl->ranged_ob ($slots->[2]);
		1584	},
		1585	);
1145		1586
1146	sub save($) {	1587	sub save($) {
1147	my ($pl) = @_;	1588	my ($pl) = @_;
1148		1589
1149	return if $pl->{deny_save};	1590	return if $pl->{deny_save};
…		…
1154	return if $pl->{deny_save};	1595	return if $pl->{deny_save};
1155		1596
1156	aio_mkdir playerdir $pl, 0770;	1597	aio_mkdir playerdir $pl, 0770;
1157	$pl->{last_save} = $cf::RUNTIME;	1598	$pl->{last_save} = $cf::RUNTIME;
1158		1599
		1600	cf::get_slot 0.01;
		1601
		1602	# save slots, to be restored later
		1603	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1604
1159	$pl->save_pl ($path);	1605	$pl->save_pl ($path);
1160	Coro::cede;	1606	cf::cede_to_tick;
1161	}	1607	}
1162		1608
1163	sub new($) {	1609	sub new($) {
1164	my ($login) = @_;	1610	my ($login) = @_;
1165		1611
…		…
1171	$cf::PLAYER{$login} = $self;	1617	$cf::PLAYER{$login} = $self;
1172		1618
1173	$self	1619	$self
1174	}	1620	}
1175		1621
		1622	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1623
		1624	=cut
		1625
		1626	sub send_msg {
		1627	my $ns = shift->ns
		1628	or return;
		1629	$ns->send_msg (@_);
		1630	}
		1631
1176	=item $pl->quit_character	1632	=item $pl->quit_character
1177		1633
1178	Nukes the player without looking back. If logged in, the connection will	1634	Nukes the player without looking back. If logged in, the connection will
1179	be destroyed. May block for a long time.	1635	be destroyed. May block for a long time.
1180		1636
1181	=cut	1637	=cut
1182		1638
1183	sub quit_character {	1639	sub quit_character {
1184	my ($pl) = @_;	1640	my ($pl) = @_;
1185		1641
		1642	my $name = $pl->ob->name;
		1643
1186	$pl->{deny_save} = 1;	1644	$pl->{deny_save} = 1;
1187	$pl->password ("*"); # this should lock out the player until we nuked the dir	1645	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1188		1646
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1647	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1190	$pl->deactivate;	1648	$pl->deactivate;
		1649	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1191	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1650	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1192	$pl->ns->destroy if $pl->ns;	1651	$pl->ns->destroy if $pl->ns;
1193		1652
1194	my $path = playerdir $pl;	1653	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1654	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1655	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1656	delete $cf::PLAYER{$pl->ob->name};
1198	$pl->destroy;	1657	$pl->destroy;
		1658
		1659	my $prefix = qr<^~\Q$name\E/>;
		1660
		1661	# nuke player maps
		1662	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1663
1199	IO::AIO::aio_rmtree $temp;	1664	IO::AIO::aio_rmtree $temp;
		1665	}
		1666
		1667	=item $pl->kick
		1668
		1669	Kicks a player out of the game. This destroys the connection.
		1670
		1671	=cut
		1672
		1673	sub kick {
		1674	my ($pl, $kicker) = @_;
		1675
		1676	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1677	$pl->killer ("kicked");
		1678	$pl->ns->destroy;
1200	}	1679	}
1201		1680
1202	=item cf::player::list_logins	1681	=item cf::player::list_logins
1203		1682
1204	Returns am arrayref of all valid playernames in the system, can take a	1683	Returns am arrayref of all valid playernames in the system, can take a
1205	while and may block, so not sync_job-capable, ever.	1684	while and may block, so not sync_job-capable, ever.
1206		1685
1207	=cut	1686	=cut
1208		1687
1209	sub list_logins {	1688	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1689	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1690	or return [];
1212		1691
1213	my @logins;	1692	my @logins;
1214		1693
1215	for my $login (@$dirs) {	1694	for my $login (@$dirs) {
		1695	my $path = path $login;
		1696
		1697	# a .pst is a dead give-away for a valid player
		1698	# if no pst file found, open and chekc for blocked users
		1699	if (aio_stat "$path.pst") {
1216	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1700	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1217	aio_read $fh, 0, 512, my $buf, 0 or next;	1701	aio_read $fh, 0, 512, my $buf, 0 or next;
1218	$buf !~ /^password -------------$/m or next; # official not-valid tag	1702	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1703	}
1219		1704
1220	utf8::decode $login;	1705	utf8::decode $login;
1221	push @logins, $login;	1706	push @logins, $login;
1222	}	1707	}
1223		1708
1224	\@logins	1709	\@logins
1225	}	1710	}
1226		1711
1227	=item $player->maps	1712	=item $player->maps
1228		1713
		1714	=item cf::player::maps $login
		1715
1229	Returns an arrayref of cf::path's of all maps that are private for this	1716	Returns an arrayref of map paths that are private for this
1230	player. May block.	1717	player. May block.
1231		1718
1232	=cut	1719	=cut
1233		1720
1234	sub maps($) {	1721	sub maps($) {
1235	my ($pl) = @_;	1722	my ($pl) = @_;
		1723
		1724	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1725
1237	my $files = aio_readdir playerdir $pl	1726	my $files = aio_readdir playerdir $pl
1238	or return;	1727	or return;
1239		1728
1240	my @paths;	1729	my @paths;
1241		1730
1242	for (@$files) {	1731	for (@$files) {
1243	utf8::decode $_;	1732	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1733	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1734	next unless /^$PATH_SEP/o;
1246		1735
1247	s/$PATH_SEP/\//g;	1736	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1737	}
1250		1738
1251	\@paths	1739	\@paths
1252	}	1740	}
1253		1741
		1742	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1743
		1744	Expand deliantra pod fragments into protocol xml.
		1745
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1746	=item $player->ext_reply ($msgid, @msg)
1255		1747
1256	Sends an ext reply to the player.	1748	Sends an ext reply to the player.
1257		1749
1258	=cut	1750	=cut
1259		1751
1260	sub ext_reply($$$%) {	1752	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1753	my ($self, $id, @msg) = @_;
1262		1754
1263	$msg{msgid} = $id;	1755	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1756	}
1267		1757
1268	package cf;	1758	=item $player->ext_msg ($type, @msg)
		1759
		1760	Sends an ext event to the client.
		1761
		1762	=cut
		1763
		1764	sub ext_msg($$@) {
		1765	my ($self, $type, @msg) = @_;
		1766
		1767	$self->ns->ext_msg ($type, @msg);
		1768	}
		1769
		1770	=head3 cf::region
		1771
		1772	=over 4
		1773
		1774	=cut
		1775
		1776	package cf::region;
		1777
		1778	=item cf::region::find_by_path $path
		1779
		1780	Tries to decuce the likely region for a map knowing only its path.
		1781
		1782	=cut
		1783
		1784	sub find_by_path($) {
		1785	my ($path) = @_;
		1786
		1787	$path =~ s/^~[^\/]*//; # skip ~login
		1788
		1789	my ($match, $specificity);
		1790
		1791	for my $region (list) {
		1792	if ($region->{match} && $path =~ $region->{match}) {
		1793	($match, $specificity) = ($region, $region->specificity)
		1794	if $region->specificity > $specificity;
		1795	}
		1796	}
		1797
		1798	$match
		1799	}
1269		1800
1270	=back	1801	=back
1271
1272		1802
1273	=head3 cf::map	1803	=head3 cf::map
1274		1804
1275	=over 4	1805	=over 4
1276		1806
…		…
1279	package cf::map;	1809	package cf::map;
1280		1810
1281	use Fcntl;	1811	use Fcntl;
1282	use Coro::AIO;	1812	use Coro::AIO;
1283		1813
		1814	use overload
		1815	'""' => \&as_string,
		1816	fallback => 1;
		1817
1284	our $MAX_RESET = 3600;	1818	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1819	our $DEFAULT_RESET = 3000;
1286		1820
1287	sub generate_random_map {	1821	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1822	my ($self, $rmp) = @_;
		1823
		1824	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1289		1825
1290	# mit "rum" bekleckern, nicht	1826	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map	1827	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1828	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1829	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1830	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1831	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1832	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1833	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1834	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1835	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1836	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1837	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region})	1838	(cf::region::find $rmp->{region}), $rmp->{custom}
		1839	)
1304	}	1840	}
1305		1841
1306	# and all this just because we cannot iterate over	1842	=item cf::map->register ($regex, $prio)
1307	# all maps in C++...
1308	sub change_all_map_light {
1309	my ($change) = @_;
1310		1843
1311	$_->change_map_light ($change)	1844	Register a handler for the map path matching the given regex at the
1312	for grep $_->outdoor, values %cf::MAP;	1845	givne priority (higher is better, built-in handlers have priority 0, the
1313	}	1846	default).
1314		1847
1315	sub try_load_header($) {	1848	=cut
		1849
		1850	sub register {
		1851	my (undef, $regex, $prio) = @_;
		1852	my $pkg = caller;
		1853
		1854	no strict;
		1855	push @{"$pkg\::ISA"}, __PACKAGE__;
		1856
		1857	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1858	}
		1859
		1860	# also paths starting with '/'
		1861	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1862
		1863	sub thawer_merge {
		1864	my ($self, $merge) = @_;
		1865
		1866	# we have to keep some variables in memory intact
		1867	local $self->{path};
		1868	local $self->{load_path};
		1869
		1870	$self->SUPER::thawer_merge ($merge);
		1871	}
		1872
		1873	sub normalise {
1316	my ($path) = @_;	1874	my ($path, $base) = @_;
		1875
		1876	$path = "$path"; # make sure its a string
		1877
		1878	$path =~ s/\.map$//;
		1879
		1880	# map plan:
		1881	#
		1882	# /! non-realised random map exit (special hack!)
		1883	# {... are special paths that are not being touched
		1884	# ?xxx/... are special absolute paths
		1885	# ?random/... random maps
		1886	# /... normal maps
		1887	# ~user/... per-player map of a specific user
		1888
		1889	$path =~ s/$PATH_SEP/\//go;
		1890
		1891	# treat it as relative path if it starts with
		1892	# something that looks reasonable
		1893	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1894	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1895
		1896	$base =~ s{[^/]+/?$}{};
		1897	$path = "$base/$path";
		1898	}
		1899
		1900	for ($path) {
		1901	redo if s{//}{/};
		1902	redo if s{/\.?/}{/};
		1903	redo if s{/[^/]+/\.\./}{/};
		1904	}
		1905
		1906	$path
		1907	}
		1908
		1909	sub new_from_path {
		1910	my (undef, $path, $base) = @_;
		1911
		1912	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1913
		1914	$path = normalise $path, $base;
		1915
		1916	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1917	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1918	my $self = bless cf::map::new, $pkg;
		1919	$self->{path} = $path; $self->path ($path);
		1920	$self->init; # pass $1 etc.
		1921	return $self;
		1922	}
		1923	}
		1924
		1925	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1926	()
		1927	}
		1928
		1929	sub init {
		1930	my ($self) = @_;
		1931
		1932	$self
		1933	}
		1934
		1935	sub as_string {
		1936	my ($self) = @_;
		1937
		1938	"$self->{path}"
		1939	}
		1940
		1941	# the displayed name, this is a one way mapping
		1942	sub visible_name {
		1943	&as_string
		1944	}
		1945
		1946	# the original (read-only) location
		1947	sub load_path {
		1948	my ($self) = @_;
		1949
		1950	"$MAPDIR/$self->{path}.map"
		1951	}
		1952
		1953	# the temporary/swap location
		1954	sub save_path {
		1955	my ($self) = @_;
		1956
		1957	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1958	"$TMPDIR/$path.map"
		1959	}
		1960
		1961	# the unique path, undef == no special unique path
		1962	sub uniq_path {
		1963	my ($self) = @_;
		1964
		1965	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1966	"$UNIQUEDIR/$path"
		1967	}
		1968
		1969	sub decay_objects {
		1970	my ($self) = @_;
		1971
		1972	return if $self->{deny_reset};
		1973
		1974	$self->do_decay_objects;
		1975	}
		1976
		1977	sub unlink_save {
		1978	my ($self) = @_;
		1979
		1980	utf8::encode (my $save = $self->save_path);
		1981	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1982	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1983	}
		1984
		1985	sub load_header_from($) {
		1986	my ($self, $path) = @_;
1317		1987
1318	utf8::encode $path;	1988	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	1989	my $f = new_from_file cf::object::thawer $path
1320	or return;	1990	or return;
1321		1991
1322	my $map = cf::map::new	1992	$self->_load_header ($f)
1323	or return;	1993	or return;
1324		1994
1325	# for better error messages only, will be overwritten	1995	local $MAP_LOADING{$self->{path}} = $self;
1326	$map->path ($path);	1996	$f->resolve_delayed_derefs;
1327		1997
1328	$map->load_header ($path)	1998	$self->{load_path} = $path;
		1999
		2000	1
		2001	}
		2002
		2003	sub load_header_orig {
		2004	my ($self) = @_;
		2005
		2006	$self->load_header_from ($self->load_path)
		2007	}
		2008
		2009	sub load_header_temp {
		2010	my ($self) = @_;
		2011
		2012	$self->load_header_from ($self->save_path)
		2013	}
		2014
		2015	sub prepare_temp {
		2016	my ($self) = @_;
		2017
		2018	$self->last_access ((delete $self->{last_access})
		2019	|| $cf::RUNTIME); #d#
		2020	# safety
		2021	$self->{instantiate_time} = $cf::RUNTIME
		2022	if $self->{instantiate_time} > $cf::RUNTIME;
		2023	}
		2024
		2025	sub prepare_orig {
		2026	my ($self) = @_;
		2027
		2028	$self->{load_original} = 1;
		2029	$self->{instantiate_time} = $cf::RUNTIME;
		2030	$self->last_access ($cf::RUNTIME);
		2031	$self->instantiate;
		2032	}
		2033
		2034	sub load_header {
		2035	my ($self) = @_;
		2036
		2037	if ($self->load_header_temp) {
		2038	$self->prepare_temp;
		2039	} else {
		2040	$self->load_header_orig
1329	or return;	2041	or return;
		2042	$self->prepare_orig;
		2043	}
1330		2044
1331	$map->{load_path} = $path;	2045	$self->{deny_reset} = 1
		2046	if $self->no_reset;
1332		2047
1333	$map	2048	$self->default_region (cf::region::find_by_path $self->{path})
		2049	unless $self->default_region;
		2050
		2051	1
1334	}	2052	}
1335		2053
1336	sub find;	2054	sub find;
1337	sub find {	2055	sub find {
1338	my ($path, $origin) = @_;	2056	my ($path, $origin) = @_;
1339		2057
1340	#warn "find<$path,$origin>\n";#d#
1341
1342	$path = new cf::path $path, $origin && $origin->path;	2058	$path = normalise $path, $origin && $origin->path;
1343	my $key = $path->as_string;
1344		2059
1345	cf::lock_wait "map_find:$key";	2060	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1346
1347	$cf::MAP{$key} || do {
1348	my $guard = cf::lock_acquire "map_find:$key";	2061	my $guard2 = cf::lock_acquire "map_find:$path";
1349		2062
1350	# do it the slow way	2063	$cf::MAP{$path} || do {
1351	my $map = try_load_header $path->save_path;	2064	my $map = new_from_path cf::map $path
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	2065	or return;
1369		2066
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	2067	$map->{last_save} = $cf::RUNTIME;
1382		2068
1383	Coro::cede;	2069	$map->load_header
		2070	or return;
1384		2071
1385	if ($map->should_reset) {	2072	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2073	# doing this can freeze the server in a sync job, obviously
		2074	#$cf::WAIT_FOR_TICK->wait;
		2075	undef $guard2;
		2076	undef $guard1;
1386	$map->reset;	2077	$map->reset;
1387	undef $guard;
1388	$map = find $path	2078	return find $path;
1389	or return;
1390	}	2079	}
1391		2080
1392	$cf::MAP{$key} = $map	2081	$cf::MAP{$path} = $map
1393	}	2082	}
1394	}	2083	}
		2084
		2085	sub pre_load { }
		2086	#sub post_load { } # XS
1395		2087
1396	sub load {	2088	sub load {
1397	my ($self) = @_;	2089	my ($self) = @_;
1398		2090
		2091	local $self->{deny_reset} = 1; # loading can take a long time
		2092
1399	my $path = $self->{path};	2093	my $path = $self->{path};
		2094
		2095	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2096	my $guard = cf::lock_acquire "map_data:$path";
1401		2097
		2098	return unless $self->valid;
1402	return if $self->in_memory != cf::MAP_SWAPPED;	2099	return unless $self->in_memory == cf::MAP_SWAPPED;
1403		2100
1404	$self->in_memory (cf::MAP_LOADING);	2101	$self->in_memory (cf::MAP_LOADING);
1405		2102
1406	$self->alloc;	2103	$self->alloc;
1407	$self->load_objects ($self->{load_path}, 1)	2104
		2105	$self->pre_load;
		2106	cf::cede_to_tick;
		2107
		2108	my $f = new_from_file cf::object::thawer $self->{load_path};
		2109	$f->skip_block;
		2110	$self->_load_objects ($f)
1408	or return;	2111	or return;
1409		2112
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2113	$self->post_load_original
1411	if delete $self->{load_original};	2114	if delete $self->{load_original};
1412		2115
1413	if (my $uniq = $path->uniq_path) {	2116	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	2117	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	2118	unless (aio_stat $uniq) {
		2119	if (my $f = new_from_file cf::object::thawer $uniq) {
1416	$self->clear_unique_items;	2120	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	2121	$self->_load_objects ($f);
		2122	$f->resolve_delayed_derefs;
		2123	}
1418	}	2124	}
1419	}	2125	}
1420		2126
1421	Coro::cede;	2127	$f->resolve_delayed_derefs;
1422		2128
		2129	cf::cede_to_tick;
1423	# now do the right thing for maps	2130	# now do the right thing for maps
1424	$self->link_multipart_objects;	2131	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	2132	$self->difficulty ($self->estimate_difficulty)
1435	unless $self->difficulty;	2133	unless $self->difficulty;
		2134	cf::cede_to_tick;
		2135
		2136	unless ($self->{deny_activate}) {
		2137	$self->decay_objects;
		2138	$self->fix_auto_apply;
		2139	$self->update_buttons;
		2140	cf::cede_to_tick;
1436	$self->activate;	2141	$self->activate;
1437	}	2142	}
1438		2143
1439	Coro::cede;	2144	$self->{last_save} = $cf::RUNTIME;
		2145	$self->last_access ($cf::RUNTIME);
1440		2146
1441	$self->in_memory (cf::MAP_IN_MEMORY);	2147	$self->in_memory (cf::MAP_ACTIVE);
		2148	}
		2149
		2150	$self->post_load;
		2151	}
		2152
		2153	# customize the map for a given player, i.e.
		2154	# return the _real_ map. used by e.g. per-player
		2155	# maps to change the path to ~playername/mappath
		2156	sub customise_for {
		2157	my ($self, $ob) = @_;
		2158
		2159	return find "~" . $ob->name . "/" . $self->{path}
		2160	if $self->per_player;
		2161
		2162	# return find "?party/" . $ob->name . "/" . $self->{path}
		2163	# if $self->per_party;
		2164
		2165	$self
		2166	}
		2167
		2168	# find and load all maps in the 3x3 area around a map
		2169	sub load_neighbours {
		2170	my ($map) = @_;
		2171
		2172	my @neigh; # diagonal neighbours
		2173
		2174	for (0 .. 3) {
		2175	my $neigh = $map->tile_path ($_)
		2176	or next;
		2177	$neigh = find $neigh, $map
		2178	or next;
		2179	$neigh->load;
		2180
		2181	# now find the diagonal neighbours
		2182	push @neigh,
		2183	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2184	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2185	}
		2186
		2187	for (grep defined $_->[0], @neigh) {
		2188	my ($path, $origin) = @$_;
		2189	my $neigh = find $path, $origin
		2190	or next;
		2191	$neigh->load;
		2192	}
1442	}	2193	}
1443		2194
1444	sub find_sync {	2195	sub find_sync {
1445	my ($path, $origin) = @_;	2196	my ($path, $origin) = @_;
1446		2197
1447	cf::sync_job { cf::map::find $path, $origin }	2198	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2199	if $Coro::current == $Coro::main;
		2200
		2201	find $path, $origin
1448	}	2202	}
1449		2203
1450	sub do_load_sync {	2204	sub do_load_sync {
1451	my ($map) = @_;	2205	my ($map) = @_;
1452		2206
1453	cf::sync_job { $map->load };	2207	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2208	if $Coro::current == $Coro::main;
		2209
		2210	$map->load;
		2211	}
		2212
		2213	our %MAP_PREFETCH;
		2214	our $MAP_PREFETCHER = undef;
		2215
		2216	sub find_async {
		2217	my ($path, $origin, $load) = @_;
		2218
		2219	$path = normalise $path, $origin && $origin->{path};
		2220
		2221	if (my $map = $cf::MAP{$path}) {
		2222	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2223	}
		2224
		2225	$MAP_PREFETCH{$path} |= $load;
		2226
		2227	$MAP_PREFETCHER ||= cf::async {
		2228	$Coro::current->{desc} = "map prefetcher";
		2229
		2230	while (%MAP_PREFETCH) {
		2231	while (my ($k, $v) = each %MAP_PREFETCH) {
		2232	if (my $map = find $k) {
		2233	$map->load if $v;
		2234	}
		2235
		2236	delete $MAP_PREFETCH{$k};
		2237	}
		2238	}
		2239	undef $MAP_PREFETCHER;
		2240	};
		2241	$MAP_PREFETCHER->prio (6);
		2242
		2243	()
		2244	}
		2245
		2246	# common code, used by both ->save and ->swapout
		2247	sub _save {
		2248	my ($self) = @_;
		2249
		2250	$self->{last_save} = $cf::RUNTIME;
		2251
		2252	return unless $self->dirty;
		2253
		2254	my $save = $self->save_path; utf8::encode $save;
		2255	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2256
		2257	$self->{load_path} = $save;
		2258
		2259	return if $self->{deny_save};
		2260
		2261	local $self->{last_access} = $self->last_access;#d#
		2262
		2263	cf::async {
		2264	$Coro::current->{desc} = "map player save";
		2265	$_->contr->save for $self->players;
		2266	};
		2267
		2268	cf::get_slot 0.02;
		2269
		2270	if ($uniq) {
		2271	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2272	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2273	} else {
		2274	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2275	}
1454	}	2276	}
1455		2277
1456	sub save {	2278	sub save {
1457	my ($self) = @_;	2279	my ($self) = @_;
1458		2280
1459	my $lock = cf::lock_acquire "map_data:" . $self->path;	2281	my $lock = cf::lock_acquire "map_data:$self->{path}";
1460		2282
1461	$self->{last_save} = $cf::RUNTIME;	2283	$self->_save;
1462
1463	return unless $self->dirty;
1464
1465	my $save = $self->{path}->save_path; utf8::encode $save;
1466	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1467
1468	$self->{load_path} = $save;
1469
1470	return if $self->{deny_save};
1471
1472	local $self->{last_access} = $self->last_access;#d#
1473
1474	cf::async {
1475	$_->contr->save for $self->players;
1476	};
1477
1478	if ($uniq) {
1479	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1480	$self->save_objects ($uniq, cf::IO_UNIQUES);
1481	} else {
1482	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1483	}
1484	}	2284	}
1485		2285
1486	sub swap_out {	2286	sub swap_out {
1487	my ($self) = @_;	2287	my ($self) = @_;
1488		2288
1489	# save first because save cedes
1490	$self->save;
1491
1492	my $lock = cf::lock_acquire "map_data:" . $self->path;	2289	my $lock = cf::lock_acquire "map_data:$self->{path}";
1493		2290
		2291	return if $self->in_memory != cf::MAP_ACTIVE;
		2292	return if $self->{deny_save};
1494	return if $self->players;	2293	return if $self->players;
1495	return if $self->in_memory != cf::MAP_IN_MEMORY;
1496	return if $self->{deny_save};
1497		2294
		2295	# first deactivate the map and "unlink" it from the core
		2296	$self->deactivate;
		2297	$_->clear_links_to ($self) for values %cf::MAP;
		2298	$self->in_memory (cf::MAP_SWAPPED);
		2299
		2300	# then atomically save
		2301	$self->_save;
		2302
		2303	# then free the map
1498	$self->clear;	2304	$self->clear;
1499	$self->in_memory (cf::MAP_SWAPPED);
1500	}	2305	}
1501		2306
1502	sub reset_at {	2307	sub reset_at {
1503	my ($self) = @_;	2308	my ($self) = @_;
1504		2309
1505	# TODO: safety, remove and allow resettable per-player maps	2310	# TODO: safety, remove and allow resettable per-player maps
1506	return 1e99 if $self->{path}{user_rel};
1507	return 1e99 if $self->{deny_reset};	2311	return 1e99 if $self->{deny_reset};
1508		2312
1509	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2313	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1510	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2314	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1511		2315
…		…
1516	my ($self) = @_;	2320	my ($self) = @_;
1517		2321
1518	$self->reset_at <= $cf::RUNTIME	2322	$self->reset_at <= $cf::RUNTIME
1519	}	2323	}
1520		2324
1521	sub unlink_save {
1522	my ($self) = @_;
1523
1524	utf8::encode (my $save = $self->{path}->save_path);
1525	aioreq_pri 3; IO::AIO::aio_unlink $save;
1526	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1527	}
1528
1529	sub rename {
1530	my ($self, $new_path) = @_;
1531
1532	$self->unlink_save;
1533
1534	delete $cf::MAP{$self->path};
1535	$self->{path} = new cf::path $new_path;
1536	$self->path ($self->{path}->as_string);
1537	$cf::MAP{$self->path} = $self;
1538
1539	$self->save;
1540	}
1541
1542	sub reset {	2325	sub reset {
1543	my ($self) = @_;	2326	my ($self) = @_;
1544		2327
1545	my $lock = cf::lock_acquire "map_data:" . $self->path;	2328	my $lock = cf::lock_acquire "map_data:$self->{path}";
1546		2329
1547	return if $self->players;	2330	return if $self->players;
1548	return if $self->{path}{user_rel};#d#
1549		2331
1550	warn "resetting map ", $self->path;#d#	2332	cf::trace "resetting map ", $self->path, "\n";
		2333
		2334	$self->in_memory (cf::MAP_SWAPPED);
		2335
		2336	# need to save uniques path
		2337	unless ($self->{deny_save}) {
		2338	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2339
		2340	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2341	if $uniq;
		2342	}
1551		2343
1552	delete $cf::MAP{$self->path};	2344	delete $cf::MAP{$self->path};
1553		2345
		2346	$self->deactivate;
1554	$_->clear_links_to ($self) for values %cf::MAP;	2347	$_->clear_links_to ($self) for values %cf::MAP;
		2348	$self->clear;
1555		2349
1556	$self->unlink_save;	2350	$self->unlink_save;
1557	$self->destroy;	2351	$self->destroy;
1558	}	2352	}
1559		2353
1560	my $nuke_counter = "aaaa";	2354	my $nuke_counter = "aaaa";
1561		2355
1562	sub nuke {	2356	sub nuke {
1563	my ($self) = @_;	2357	my ($self) = @_;
1564		2358
		2359	{
		2360	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2361
		2362	delete $cf::MAP{$self->path};
		2363
		2364	$self->unlink_save;
		2365
		2366	bless $self, "cf::map::wrap";
		2367	delete $self->{deny_reset};
1565	$self->{deny_save} = 1;	2368	$self->{deny_save} = 1;
1566	$self->reset_timeout (1);	2369	$self->reset_timeout (1);
1567	$self->rename ("{nuke}/" . ($nuke_counter++));	2370	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2371
		2372	$cf::MAP{$self->path} = $self;
		2373	}
		2374
1568	$self->reset; # polite request, might not happen	2375	$self->reset; # polite request, might not happen
1569	}	2376	}
1570		2377
1571	sub customise_for {	2378	=item $maps = cf::map::tmp_maps
1572	my ($map, $ob) = @_;
1573		2379
1574	if ($map->per_player) {	2380	Returns an arrayref with all map paths of currently instantiated and saved
1575	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2381	maps. May block.
		2382
		2383	=cut
		2384
		2385	sub tmp_maps() {
1576	}	2386	[
		2387	map {
		2388	utf8::decode $_;
		2389	/\.map$/
		2390	? normalise $_
		2391	: ()
		2392	} @{ aio_readdir $TMPDIR or [] }
		2393	]
		2394	}
1577		2395
		2396	=item $maps = cf::map::random_maps
		2397
		2398	Returns an arrayref with all map paths of currently instantiated and saved
		2399	random maps. May block.
		2400
		2401	=cut
		2402
		2403	sub random_maps() {
		2404	[
		2405	map {
		2406	utf8::decode $_;
		2407	/\.map$/
		2408	? normalise "?random/$_"
		2409	: ()
		2410	} @{ aio_readdir $RANDOMDIR or [] }
		2411	]
		2412	}
		2413
		2414	=item cf::map::unique_maps
		2415
		2416	Returns an arrayref of paths of all shared maps that have
		2417	instantiated unique items. May block.
		2418
		2419	=cut
		2420
		2421	sub unique_maps() {
		2422	[
		2423	map {
		2424	utf8::decode $_;
		2425	s/\.map$//; # TODO future compatibility hack
		2426	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2427	? ()
		2428	: normalise $_
		2429	} @{ aio_readdir $UNIQUEDIR or [] }
		2430	]
		2431	}
		2432
		2433	=item cf::map::static_maps
		2434
		2435	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2436	file in the shared directory excluding F</styles> and F</editor>). May
		2437	block.
		2438
		2439	=cut
		2440
		2441	sub static_maps() {
		2442	my @dirs = "";
		2443	my @maps;
		2444
		2445	while (@dirs) {
		2446	my $dir = shift @dirs;
		2447
		2448	next if $dir eq "/styles" || $dir eq "/editor";
		2449
		2450	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2451	or return;
		2452
		2453	for (@$files) {
		2454	s/\.map$// or next;
		2455	utf8::decode $_;
		2456	push @maps, "$dir/$_";
		2457	}
		2458
		2459	push @dirs, map "$dir/$_", @$dirs;
		2460	}
		2461
1578	$map	2462	\@maps
1579	}	2463	}
1580
1581	package cf;
1582		2464
1583	=back	2465	=back
1584		2466
1585	=head3 cf::object	2467	=head3 cf::object
1586		2468
…		…
1590		2472
1591	=over 4	2473	=over 4
1592		2474
1593	=item $ob->inv_recursive	2475	=item $ob->inv_recursive
1594		2476
1595	Returns the inventory of the object _and_ their inventories, recursively.	2477	Returns the inventory of the object I<and> their inventories, recursively,
		2478	but I<not> the object itself.
1596		2479
1597	=cut	2480	=cut
1598		2481
1599	sub inv_recursive_;	2482	sub inv_recursive_;
1600	sub inv_recursive_ {	2483	sub inv_recursive_ {
…		…
1603		2486
1604	sub inv_recursive {	2487	sub inv_recursive {
1605	inv_recursive_ inv $_[0]	2488	inv_recursive_ inv $_[0]
1606	}	2489	}
1607		2490
		2491	=item $ref = $ob->ref
		2492
		2493	Creates and returns a persistent reference to an object that can be stored as a string.
		2494
		2495	=item $ob = cf::object::deref ($refstring)
		2496
		2497	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2498	even if the object actually exists. May block.
		2499
		2500	=cut
		2501
		2502	sub deref {
		2503	my ($ref) = @_;
		2504
		2505	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2506	my ($uuid, $name) = ($1, $2);
		2507	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2508	or return;
		2509	$pl->ob->uuid eq $uuid
		2510	or return;
		2511
		2512	$pl->ob
		2513	} else {
		2514	warn "$ref: cannot resolve object reference\n";
		2515	undef
		2516	}
		2517	}
		2518
1608	package cf;	2519	package cf;
1609		2520
1610	=back	2521	=back
1611		2522
1612	=head3 cf::object::player	2523	=head3 cf::object::player
…		…
1618	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2529	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1619	can be C<undef>. Does the right thing when the player is currently in a	2530	can be C<undef>. Does the right thing when the player is currently in a
1620	dialogue with the given NPC character.	2531	dialogue with the given NPC character.
1621		2532
1622	=cut	2533	=cut
		2534
		2535	our $SAY_CHANNEL = {
		2536	id => "say",
		2537	title => "Map",
		2538	reply => "say ",
		2539	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2540	};
		2541
		2542	our $CHAT_CHANNEL = {
		2543	id => "chat",
		2544	title => "Chat",
		2545	reply => "chat ",
		2546	tooltip => "Player chat and shouts, global to the server.",
		2547	};
1623		2548
1624	# rough implementation of a future "reply" method that works	2549	# rough implementation of a future "reply" method that works
1625	# with dialog boxes.	2550	# with dialog boxes.
1626	#TODO: the first argument must go, split into a $npc->reply_to ( method	2551	#TODO: the first argument must go, split into a $npc->reply_to ( method
1627	sub cf::object::player::reply($$$;$) {	2552	sub cf::object::player::reply($$$;$) {
…		…
1629		2554
1630	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2555	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1631		2556
1632	if ($self->{record_replies}) {	2557	if ($self->{record_replies}) {
1633	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2558	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2559
1634	} else {	2560	} else {
		2561	my $pl = $self->contr;
		2562
		2563	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2564	my $dialog = $pl->{npc_dialog};
		2565	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2566
		2567	} else {
1635	$msg = $npc->name . " says: $msg" if $npc;	2568	$msg = $npc->name . " says: $msg" if $npc;
1636	$self->message ($msg, $flags);	2569	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2570	}
1637	}	2571	}
		2572	}
		2573
		2574	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2575
		2576	=cut
		2577
		2578	sub cf::object::send_msg {
		2579	my $pl = shift->contr
		2580	or return;
		2581	$pl->send_msg (@_);
1638	}	2582	}
1639		2583
1640	=item $player_object->may ("access")	2584	=item $player_object->may ("access")
1641		2585
1642	Returns wether the given player is authorized to access resource "access"	2586	Returns wether the given player is authorized to access resource "access"
…		…
1655		2599
1656	=item $player_object->enter_link	2600	=item $player_object->enter_link
1657		2601
1658	Freezes the player and moves him/her to a special map (C<{link}>).	2602	Freezes the player and moves him/her to a special map (C<{link}>).
1659		2603
1660	The player should be reaosnably safe there for short amounts of time. You	2604	The player should be reasonably safe there for short amounts of time (e.g.
1661	I<MUST> call C<leave_link> as soon as possible, though.	2605	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2606	though, as the player cannot control the character while it is on the link
		2607	map.
		2608
		2609	Will never block.
1662		2610
1663	=item $player_object->leave_link ($map, $x, $y)	2611	=item $player_object->leave_link ($map, $x, $y)
1664		2612
1665	Moves the player out of the specila link map onto the given map. If the	2613	Moves the player out of the special C<{link}> map onto the specified
1666	map is not valid (or omitted), the player will be moved back to the	2614	map. If the map is not valid (or omitted), the player will be moved back
1667	location he/she was before the call to C<enter_link>, or, if that fails,	2615	to the location he/she was before the call to C<enter_link>, or, if that
1668	to the emergency map position.	2616	fails, to the emergency map position.
1669		2617
1670	Might block.	2618	Might block.
1671		2619
1672	=cut	2620	=cut
		2621
		2622	sub link_map {
		2623	unless ($LINK_MAP) {
		2624	$LINK_MAP = cf::map::find "{link}"
		2625	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2626	$LINK_MAP->load;
		2627	}
		2628
		2629	$LINK_MAP
		2630	}
1673		2631
1674	sub cf::object::player::enter_link {	2632	sub cf::object::player::enter_link {
1675	my ($self) = @_;	2633	my ($self) = @_;
1676		2634
1677	$self->deactivate_recursive;	2635	$self->deactivate_recursive;
1678		2636
1679	return if $self->map == $LINK_MAP;	2637	++$self->{_link_recursion};
		2638
		2639	return if UNIVERSAL::isa $self->map, "ext::map_link";
1680		2640
1681	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2641	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1682	if $self->map;	2642	if $self->map && $self->map->{path} ne "{link}";
1683		2643
1684	$self->enter_map ($LINK_MAP, 20, 20);	2644	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1685	}	2645	}
1686		2646
1687	sub cf::object::player::leave_link {	2647	sub cf::object::player::leave_link {
1688	my ($self, $map, $x, $y) = @_;	2648	my ($self, $map, $x, $y) = @_;
		2649
		2650	return unless $self->contr->active;
1689		2651
1690	my $link_pos = delete $self->{_link_pos};	2652	my $link_pos = delete $self->{_link_pos};
1691		2653
1692	unless ($map) {	2654	unless ($map) {
1693	# restore original map position	2655	# restore original map position
…		…
1704	($x, $y) = (-1, -1)	2666	($x, $y) = (-1, -1)
1705	unless (defined $x) && (defined $y);	2667	unless (defined $x) && (defined $y);
1706		2668
1707	# use -1 or undef as default coordinates, not 0, 0	2669	# use -1 or undef as default coordinates, not 0, 0
1708	($x, $y) = ($map->enter_x, $map->enter_y)	2670	($x, $y) = ($map->enter_x, $map->enter_y)
1709	if $x <=0 && $y <= 0;	2671	if $x <= 0 && $y <= 0;
1710		2672
1711	$map->load;	2673	$map->load;
		2674	$map->load_neighbours;
1712		2675
1713	return unless $self->contr->active;	2676	return unless $self->contr->active;
		2677
		2678	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2679	if ($self->enter_map ($map, $x, $y)) {
		2680	# entering was successful
		2681	delete $self->{_link_recursion};
		2682	# only activate afterwards, to support waiting in hooks
1714	$self->activate_recursive;	2683	$self->activate_recursive;
1715	$self->enter_map ($map, $x, $y);
1716	}
1717
1718	cf::player->attach (
1719	on_logout => sub {
1720	my ($pl) = @_;
1721
1722	# abort map switching before logout
1723	if ($pl->ob->{_link_pos}) {
1724	cf::sync_job {
1725	$pl->ob->leave_link
1726	};
1727	}
1728	},	2684	}
1729	on_login => sub {
1730	my ($pl) = @_;
1731		2685
1732	# try to abort aborted map switching on player login :)	2686	}
1733	# should happen only on crashes
1734	if ($pl->ob->{_link_pos}) {
1735	$pl->ob->enter_link;
1736	(async {
1737	# we need this sleep as the login has a concurrent enter_exit running
1738	# and this sleep increases chances of the player not ending up in scorn
1739	$pl->ob->reply (undef,
1740	"There was an internal problem at your last logout, "
1741	. "the server will try to bring you to your intended destination in a second.",
1742	cf::NDI_RED);
1743	Coro::Timer::sleep 1;
1744	$pl->ob->leave_link;
1745	})->prio (2);
1746	}
1747	},
1748	);
1749		2687
1750	=item $player_object->goto ($path, $x, $y)	2688	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1751		2689
		2690	Moves the player to the given map-path and coordinates by first freezing
		2691	her, loading and preparing them map, calling the provided $check callback
		2692	that has to return the map if sucecssful, and then unfreezes the player on
		2693	the new (success) or old (failed) map position. In either case, $done will
		2694	be called at the end of this process.
		2695
		2696	Note that $check will be called with a potentially non-loaded map, so if
		2697	it needs a loaded map it has to call C<< ->load >>.
		2698
1752	=cut	2699	=cut
		2700
		2701	our $GOTOGEN;
1753		2702
1754	sub cf::object::player::goto {	2703	sub cf::object::player::goto {
1755	my ($self, $path, $x, $y) = @_;	2704	my ($self, $path, $x, $y, $check, $done) = @_;
1756		2705
1757	$path = new cf::path $path;	2706	if ($self->{_link_recursion} >= $MAX_LINKS) {
1758	$path ne "/" or Carp::cluck ("oy");#d#	2707	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2708	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2709	($path, $x, $y) = @$EMERGENCY_POSITION;
		2710	}
		2711
		2712	# do generation counting so two concurrent goto's will be executed in-order
		2713	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1759		2714
1760	$self->enter_link;	2715	$self->enter_link;
1761		2716
1762	(async {	2717	(async {
1763	my $map = cf::map::find $path->as_string;	2718	$Coro::current->{desc} = "player::goto $path $x $y";
		2719
		2720	# *tag paths override both path and x|y
		2721	if ($path =~ /^\*(.*)$/) {
		2722	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2723	my $ob = $obs[rand @obs];
		2724
		2725	# see if we actually can go there
		2726	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2727	$ob = $obs[rand @obs];
		2728	} else {
		2729	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2730	}
		2731	# else put us there anyways for now #d#
		2732
		2733	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2734	} else {
		2735	($path, $x, $y) = (undef, undef, undef);
		2736	}
		2737	}
		2738
		2739	my $map = eval {
		2740	my $map = defined $path ? cf::map::find $path : undef;
		2741
		2742	if ($map) {
1764	$map = $map->customise_for ($self) if $map;	2743	$map = $map->customise_for ($self);
1765		2744	$map = $check->($map, $x, $y, $self) if $check && $map;
1766	# warn "entering ", $map->path, " at ($x, $y)\n"	2745	} else {
1767	# if $map;
1768
1769	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2746	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2747	}
1770		2748
		2749	$map
		2750	};
		2751
		2752	if ($@) {
		2753	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2754	LOG llevError | logBacktrace, Carp::longmess $@;
		2755	}
		2756
		2757	if ($gen == $self->{_goto_generation}) {
		2758	delete $self->{_goto_generation};
1771	$self->leave_link ($map, $x, $y);	2759	$self->leave_link ($map, $x, $y);
		2760	}
		2761
		2762	$done->($self) if $done;
1772	})->prio (1);	2763	})->prio (1);
1773	}	2764	}
1774		2765
1775	=item $player_object->enter_exit ($exit_object)	2766	=item $player_object->enter_exit ($exit_object)
1776		2767
…		…
1778		2769
1779	sub parse_random_map_params {	2770	sub parse_random_map_params {
1780	my ($spec) = @_;	2771	my ($spec) = @_;
1781		2772
1782	my $rmp = { # defaults	2773	my $rmp = { # defaults
1783	xsize => 10,	2774	xsize => (cf::rndm 15, 40),
1784	ysize => 10,	2775	ysize => (cf::rndm 15, 40),
		2776	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2777	#layout => string,
1785	};	2778	};
1786		2779
1787	for (split /\n/, $spec) {	2780	for (split /\n/, $spec) {
1788	my ($k, $v) = split /\s+/, $_, 2;	2781	my ($k, $v) = split /\s+/, $_, 2;
1789		2782
…		…
1801	# that depends on the exit object	2794	# that depends on the exit object
1802		2795
1803	my $rmp = parse_random_map_params $exit->msg;	2796	my $rmp = parse_random_map_params $exit->msg;
1804		2797
1805	if ($exit->map) {	2798	if ($exit->map) {
1806	$rmp->{region} = $exit->map->region_name;	2799	$rmp->{region} = $exit->region->name;
1807	$rmp->{origin_map} = $exit->map->path;	2800	$rmp->{origin_map} = $exit->map->path;
1808	$rmp->{origin_x} = $exit->x;	2801	$rmp->{origin_x} = $exit->x;
1809	$rmp->{origin_y} = $exit->y;	2802	$rmp->{origin_y} = $exit->y;
		2803
		2804	$exit->map->touch;
1810	}	2805	}
1811		2806
1812	$rmp->{random_seed} ||= $exit->random_seed;	2807	$rmp->{random_seed} ||= $exit->random_seed;
1813		2808
1814	my $data = cf::to_json $rmp;	2809	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1815	my $md5 = Digest::MD5::md5_hex $data;	2810	my $md5 = Digest::MD5::md5_hex $data;
		2811	my $meta = "$RANDOMDIR/$md5.meta";
1816		2812
1817	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2813	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1818	aio_write $fh, 0, (length $data), $data, 0;	2814	aio_write $fh, 0, (length $data), $data, 0;
		2815	undef $fh;
		2816	aio_rename "$meta~", $meta;
1819		2817
		2818	my $slaying = "?random/$md5";
		2819
		2820	if ($exit->valid) {
1820	$exit->slaying ("?random/$md5");	2821	$exit->slaying ("?random/$md5");
1821	$exit->msg (undef);	2822	$exit->msg (undef);
		2823	}
1822	}	2824	}
1823	}	2825	}
1824		2826
1825	sub cf::object::player::enter_exit {	2827	sub cf::object::player::enter_exit {
1826	my ($self, $exit) = @_;	2828	my ($self, $exit) = @_;
…		…
1828	return unless $self->type == cf::PLAYER;	2830	return unless $self->type == cf::PLAYER;
1829		2831
1830	$self->enter_link;	2832	$self->enter_link;
1831		2833
1832	(async {	2834	(async {
1833	$self->deactivate_recursive; # just to be sure	2835	$Coro::current->{desc} = "enter_exit";
		2836
1834	unless (eval {	2837	unless (eval {
		2838	$self->deactivate_recursive; # just to be sure
		2839
		2840	# random map handling
		2841	{
		2842	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2843
1835	prepare_random_map $exit	2844	prepare_random_map $exit
1836	if $exit->slaying eq "/!";	2845	if $exit->slaying eq "/!";
		2846	}
1837		2847
1838	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2848	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1839	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2849	my $x = $exit->stats->hp;
		2850	my $y = $exit->stats->sp;
1840		2851
		2852	$self->goto ($map, $x, $y);
		2853
		2854	# if exit is damned, update players death & WoR home-position
		2855	$self->contr->savebed ($map, $x, $y)
		2856	if $exit->flag (cf::FLAG_DAMNED);
		2857
1841	1;	2858	1
1842	}) {	2859	}) {
1843	$self->message ("Something went wrong deep within the crossfire server. "	2860	$self->message ("Something went wrong deep within the deliantra server. "
1844	. "I'll try to bring you back to the map you were before. "	2861	. "I'll try to bring you back to the map you were before. "
1845	. "Please report this to the dungeon master",	2862	. "Please report this to the dungeon master!",
1846	cf::NDI_UNIQUE | cf::NDI_RED);	2863	cf::NDI_UNIQUE | cf::NDI_RED);
1847		2864
1848	warn "ERROR in enter_exit: $@";	2865	error "ERROR in enter_exit: $@";
1849	$self->leave_link;	2866	$self->leave_link;
1850	}	2867	}
1851	})->prio (1);	2868	})->prio (1);
1852	}	2869	}
1853		2870
…		…
1864		2881
1865	sub cf::client::send_drawinfo {	2882	sub cf::client::send_drawinfo {
1866	my ($self, $text, $flags) = @_;	2883	my ($self, $text, $flags) = @_;
1867		2884
1868	utf8::encode $text;	2885	utf8::encode $text;
1869	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2886	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1870	}	2887	}
1871		2888
		2889	=item $client->send_big_packet ($pkt)
		2890
		2891	Like C<send_packet>, but tries to compress large packets, and fragments
		2892	them as required.
		2893
		2894	=cut
		2895
		2896	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2897
		2898	sub cf::client::send_big_packet {
		2899	my ($self, $pkt) = @_;
		2900
		2901	# try lzf for large packets
		2902	$pkt = "lzf " . Compress::LZF::compress $pkt
		2903	if 1024 <= length $pkt and $self->{can_lzf};
		2904
		2905	# split very large packets
		2906	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2907	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2908	$pkt = "frag";
		2909	}
		2910
		2911	$self->send_packet ($pkt);
		2912	}
		2913
		2914	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2915
		2916	Send a drawinfo or msg packet to the client, formatting the msg for the
		2917	client if neccessary. C<$type> should be a string identifying the type of
		2918	the message, with C<log> being the default. If C<$color> is negative, suppress
		2919	the message unless the client supports the msg packet.
		2920
		2921	=cut
		2922
		2923	# non-persistent channels (usually the info channel)
		2924	our %CHANNEL = (
		2925	"c/motd" => {
		2926	id => "infobox",
		2927	title => "MOTD",
		2928	reply => undef,
		2929	tooltip => "The message of the day",
		2930	},
		2931	"c/identify" => {
		2932	id => "infobox",
		2933	title => "Identify",
		2934	reply => undef,
		2935	tooltip => "Items recently identified",
		2936	},
		2937	"c/examine" => {
		2938	id => "infobox",
		2939	title => "Examine",
		2940	reply => undef,
		2941	tooltip => "Signs and other items you examined",
		2942	},
		2943	"c/shopinfo" => {
		2944	id => "infobox",
		2945	title => "Shop Info",
		2946	reply => undef,
		2947	tooltip => "What your bargaining skill tells you about the shop",
		2948	},
		2949	"c/book" => {
		2950	id => "infobox",
		2951	title => "Book",
		2952	reply => undef,
		2953	tooltip => "The contents of a note or book",
		2954	},
		2955	"c/lookat" => {
		2956	id => "infobox",
		2957	title => "Look",
		2958	reply => undef,
		2959	tooltip => "What you saw there",
		2960	},
		2961	"c/who" => {
		2962	id => "infobox",
		2963	title => "Players",
		2964	reply => undef,
		2965	tooltip => "Shows players who are currently online",
		2966	},
		2967	"c/body" => {
		2968	id => "infobox",
		2969	title => "Body Parts",
		2970	reply => undef,
		2971	tooltip => "Shows which body parts you posess and are available",
		2972	},
		2973	"c/statistics" => {
		2974	id => "infobox",
		2975	title => "Statistics",
		2976	reply => undef,
		2977	tooltip => "Shows your primary statistics",
		2978	},
		2979	"c/skills" => {
		2980	id => "infobox",
		2981	title => "Skills",
		2982	reply => undef,
		2983	tooltip => "Shows your experience per skill and item power",
		2984	},
		2985	"c/shopitems" => {
		2986	id => "infobox",
		2987	title => "Shop Items",
		2988	reply => undef,
		2989	tooltip => "Shows the items currently for sale in this shop",
		2990	},
		2991	"c/resistances" => {
		2992	id => "infobox",
		2993	title => "Resistances",
		2994	reply => undef,
		2995	tooltip => "Shows your resistances",
		2996	},
		2997	"c/pets" => {
		2998	id => "infobox",
		2999	title => "Pets",
		3000	reply => undef,
		3001	tooltip => "Shows information abotu your pets/a specific pet",
		3002	},
		3003	"c/perceiveself" => {
		3004	id => "infobox",
		3005	title => "Perceive Self",
		3006	reply => undef,
		3007	tooltip => "You gained detailed knowledge about yourself",
		3008	},
		3009	"c/uptime" => {
		3010	id => "infobox",
		3011	title => "Uptime",
		3012	reply => undef,
		3013	tooltip => "How long the server has been running since last restart",
		3014	},
		3015	"c/mapinfo" => {
		3016	id => "infobox",
		3017	title => "Map Info",
		3018	reply => undef,
		3019	tooltip => "Information related to the maps",
		3020	},
		3021	"c/party" => {
		3022	id => "party",
		3023	title => "Party",
		3024	reply => "gsay ",
		3025	tooltip => "Messages and chat related to your party",
		3026	},
		3027	"c/death" => {
		3028	id => "death",
		3029	title => "Death",
		3030	reply => undef,
		3031	tooltip => "Reason for and more info about your most recent death",
		3032	},
		3033	"c/say" => $SAY_CHANNEL,
		3034	"c/chat" => $CHAT_CHANNEL,
		3035	);
		3036
		3037	sub cf::client::send_msg {
		3038	my ($self, $channel, $msg, $color, @extra) = @_;
		3039
		3040	$msg = $self->pl->expand_cfpod ($msg)
		3041	unless $color & cf::NDI_VERBATIM;
		3042
		3043	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3044
		3045	# check predefined channels, for the benefit of C
		3046	if ($CHANNEL{$channel}) {
		3047	$channel = $CHANNEL{$channel};
		3048
		3049	$self->ext_msg (channel_info => $channel);
		3050	$channel = $channel->{id};
		3051
		3052	} elsif (ref $channel) {
		3053	# send meta info to client, if not yet sent
		3054	unless (exists $self->{channel}{$channel->{id}}) {
		3055	$self->{channel}{$channel->{id}} = $channel;
		3056	$self->ext_msg (channel_info => $channel);
		3057	}
		3058
		3059	$channel = $channel->{id};
		3060	}
		3061
		3062	return unless @extra || length $msg;
		3063
		3064	# default colour, mask it out
		3065	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3066	if $color & cf::NDI_DEF;
		3067
		3068	my $pkt = "msg "
		3069	. $self->{json_coder}->encode (
		3070	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3071	);
		3072
		3073	$self->send_big_packet ($pkt);
		3074	}
		3075
		3076	=item $client->ext_msg ($type, @msg)
		3077
		3078	Sends an ext event to the client.
		3079
		3080	=cut
		3081
		3082	sub cf::client::ext_msg($$@) {
		3083	my ($self, $type, @msg) = @_;
		3084
		3085	if ($self->extcmd == 2) {
		3086	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3087	} elsif ($self->extcmd == 1) { # TODO: remove
		3088	push @msg, msgtype => "event_$type";
		3089	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3090	}
		3091	}
		3092
		3093	=item $client->ext_reply ($msgid, @msg)
		3094
		3095	Sends an ext reply to the client.
		3096
		3097	=cut
		3098
		3099	sub cf::client::ext_reply($$@) {
		3100	my ($self, $id, @msg) = @_;
		3101
		3102	if ($self->extcmd == 2) {
		3103	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3104	} elsif ($self->extcmd == 1) {
		3105	#TODO: version 1, remove
		3106	unshift @msg, msgtype => "reply", msgid => $id;
		3107	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3108	}
		3109	}
1872		3110
1873	=item $success = $client->query ($flags, "text", \&cb)	3111	=item $success = $client->query ($flags, "text", \&cb)
1874		3112
1875	Queues a query to the client, calling the given callback with	3113	Queues a query to the client, calling the given callback with
1876	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3114	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1877	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3115	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1878		3116
1879	Queries can fail, so check the return code. Or don't, as queries will become	3117	Queries can fail, so check the return code. Or don't, as queries will
1880	reliable at some point in the future.	3118	become reliable at some point in the future.
1881		3119
1882	=cut	3120	=cut
1883		3121
1884	sub cf::client::query {	3122	sub cf::client::query {
1885	my ($self, $flags, $text, $cb) = @_;	3123	my ($self, $flags, $text, $cb) = @_;
…		…
1893	utf8::encode $text;	3131	utf8::encode $text;
1894	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3132	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1895		3133
1896	$self->send_packet ($self->{query_queue}[0][0])	3134	$self->send_packet ($self->{query_queue}[0][0])
1897	if @{ $self->{query_queue} } == 1;	3135	if @{ $self->{query_queue} } == 1;
		3136
		3137	1
1898	}	3138	}
1899		3139
1900	cf::client->attach (	3140	cf::client->attach (
		3141	on_connect => sub {
		3142	my ($ns) = @_;
		3143
		3144	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3145	},
1901	on_reply => sub {	3146	on_reply => sub {
1902	my ($ns, $msg) = @_;	3147	my ($ns, $msg) = @_;
1903		3148
1904	# this weird shuffling is so that direct followup queries	3149	# this weird shuffling is so that direct followup queries
1905	# get handled first	3150	# get handled first
1906	my $queue = delete $ns->{query_queue}	3151	my $queue = delete $ns->{query_queue}
1907	or return; # be conservative, not sure how that can happen, but we saw a crash here	3152	or return; # be conservative, not sure how that can happen, but we saw a crash here
1908		3153
1909	(shift @$queue)->[1]->($msg);	3154	(shift @$queue)->[1]->($msg);
		3155	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1910		3156
1911	push @{ $ns->{query_queue} }, @$queue;	3157	push @{ $ns->{query_queue} }, @$queue;
1912		3158
1913	if (@{ $ns->{query_queue} } == @$queue) {	3159	if (@{ $ns->{query_queue} } == @$queue) {
1914	if (@$queue) {	3160	if (@$queue) {
…		…
1916	} else {	3162	} else {
1917	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3163	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1918	}	3164	}
1919	}	3165	}
1920	},	3166	},
		3167	on_exticmd => sub {
		3168	my ($ns, $buf) = @_;
		3169
		3170	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3171
		3172	if (ref $msg) {
		3173	my ($type, $reply, @payload) =
		3174	"ARRAY" eq ref $msg
		3175	? @$msg
		3176	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3177
		3178	my @reply;
		3179
		3180	if (my $cb = $EXTICMD{$type}) {
		3181	@reply = $cb->($ns, @payload);
		3182	}
		3183
		3184	$ns->ext_reply ($reply, @reply)
		3185	if $reply;
		3186
		3187	} else {
		3188	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3189	}
		3190
		3191	cf::override;
		3192	},
1921	);	3193	);
1922		3194
1923	=item $client->async (\&cb)	3195	=item $client->async (\&cb)
1924		3196
1925	Create a new coroutine, running the specified callback. The coroutine will	3197	Create a new coroutine, running the specified callback. The coroutine will
…		…
1941		3213
1942	$coro	3214	$coro
1943	}	3215	}
1944		3216
1945	cf::client->attach (	3217	cf::client->attach (
1946	on_destroy => sub {	3218	on_client_destroy => sub {
1947	my ($ns) = @_;	3219	my ($ns) = @_;
1948		3220
1949	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3221	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1950	},	3222	},
1951	);	3223	);
…		…
1966	our $safe = new Safe "safe";	3238	our $safe = new Safe "safe";
1967	our $safe_hole = new Safe::Hole;	3239	our $safe_hole = new Safe::Hole;
1968		3240
1969	$SIG{FPE} = 'IGNORE';	3241	$SIG{FPE} = 'IGNORE';
1970		3242
1971	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3243	$safe->permit_only (Opcode::opset qw(
		3244	:base_core :base_mem :base_orig :base_math :base_loop
		3245	grepstart grepwhile mapstart mapwhile
		3246	sort time
		3247	));
1972		3248
1973	# here we export the classes and methods available to script code	3249	# here we export the classes and methods available to script code
1974		3250
1975	=pod	3251	=pod
1976		3252
1977	The following fucntions and emthods are available within a safe environment:	3253	The following functions and methods are available within a safe environment:
1978		3254
1979	cf::object contr pay_amount pay_player map	3255	cf::object
		3256	contr pay_amount pay_player map x y force_find force_add destroy
		3257	insert remove name archname title slaying race decrease split
		3258	value
		3259
1980	cf::object::player player	3260	cf::object::player
1981	cf::player peaceful	3261	player
1982	cf::map trigger	3262
		3263	cf::player
		3264	peaceful
		3265
		3266	cf::map
		3267	trigger
1983		3268
1984	=cut	3269	=cut
1985		3270
1986	for (	3271	for (
1987	["cf::object" => qw(contr pay_amount pay_player map)],	3272	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3273	insert remove inv nrof name archname title slaying race
		3274	decrease split destroy change_exp value msg lore send_msg)],
1988	["cf::object::player" => qw(player)],	3275	["cf::object::player" => qw(player)],
1989	["cf::player" => qw(peaceful)],	3276	["cf::player" => qw(peaceful send_msg)],
1990	["cf::map" => qw(trigger)],	3277	["cf::map" => qw(trigger)],
1991	) {	3278	) {
1992	no strict 'refs';	3279	no strict 'refs';
1993	my ($pkg, @funs) = @$_;	3280	my ($pkg, @funs) = @$_;
1994	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3281	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2012		3299
2013	my $qcode = $code;	3300	my $qcode = $code;
2014	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3301	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2015	$qcode =~ s/\n/\\n/g;	3302	$qcode =~ s/\n/\\n/g;
2016		3303
		3304	%vars = (_dummy => 0) unless %vars;
		3305
		3306	my @res;
2017	local $_;	3307	local $_;
2018	local @safe::cf::_safe_eval_args = values %vars;
2019		3308
2020	my $eval =	3309	my $eval =
2021	"do {\n"	3310	"do {\n"
2022	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3311	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2023	. "#line 0 \"{$qcode}\"\n"	3312	. "#line 0 \"{$qcode}\"\n"
2024	. $code	3313	. $code
2025	. "\n}"	3314	. "\n}"
2026	;	3315	;
2027		3316
		3317	if ($CFG{safe_eval}) {
2028	sub_generation_inc;	3318	sub_generation_inc;
		3319	local @safe::cf::_safe_eval_args = values %vars;
2029	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3320	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2030	sub_generation_inc;	3321	sub_generation_inc;
		3322	} else {
		3323	local @cf::_safe_eval_args = values %vars;
		3324	@res = wantarray ? eval eval : scalar eval $eval;
		3325	}
2031		3326
2032	if ($@) {	3327	if ($@) {
2033	warn "$@";	3328	warn "$@",
2034	warn "while executing safe code '$code'\n";	3329	"while executing safe code '$code'\n",
2035	warn "with arguments " . (join " ", %vars) . "\n";	3330	"with arguments " . (join " ", %vars) . "\n";
2036	}	3331	}
2037		3332
2038	wantarray ? @res : $res[0]	3333	wantarray ? @res : $res[0]
2039	}	3334	}
2040		3335
…		…
2054	=cut	3349	=cut
2055		3350
2056	sub register_script_function {	3351	sub register_script_function {
2057	my ($fun, $cb) = @_;	3352	my ($fun, $cb) = @_;
2058		3353
2059	no strict 'refs';	3354	$fun = "safe::$fun" if $CFG{safe_eval};
2060	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3355	*$fun = $safe_hole->wrap ($cb);
2061	}	3356	}
2062		3357
2063	=back	3358	=back
2064		3359
2065	=cut	3360	=cut
2066		3361
2067	#############################################################################	3362	#############################################################################
		3363	# the server's init and main functions
2068		3364
2069	=head2 EXTENSION DATABASE SUPPORT	3365	sub load_facedata($) {
		3366	my ($path) = @_;
2070		3367
2071	Crossfire maintains a very simple database for extension use. It can	3368	# HACK to clear player env face cache, we need some signal framework
2072	currently store anything that can be serialised using Storable, which	3369	# for this (global event?)
2073	excludes objects.	3370	%ext::player_env::MUSIC_FACE_CACHE = ();
2074		3371
2075	The parameter C<$family> should best start with the name of the extension	3372	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2076	using it, it should be unique.
2077		3373
2078	=over 4	3374	trace "loading facedata from $path\n";
2079		3375
2080	=item $hashref = cf::db_get $family	3376	my $facedata;
		3377	0 < aio_load $path, $facedata
		3378	or die "$path: $!";
2081		3379
2082	Return a hashref for use by the extension C<$family>, which can be	3380	$facedata = Coro::Storable::thaw $facedata;
2083	modified. After modifications, you have to call C<cf::db_dirty> or
2084	C<cf::db_sync>.
2085		3381
2086	=item $value = cf::db_get $family => $key	3382	$facedata->{version} == 2
		3383	or cf::cleanup "$path: version mismatch, cannot proceed.";
2087		3384
2088	Returns a single value from the database	3385	# patch in the exptable
2089		3386	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2090	=item cf::db_put $family => $hashref	3387	$facedata->{resource}{"res/exp_table"} = {
2091		3388	type => FT_RSRC,
2092	Stores the given family hashref into the database. Updates are delayed, if	3389	data => $exp_table,
2093	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3390	hash => (Digest::MD5::md5 $exp_table),
2094
2095	=item cf::db_put $family => $key => $value
2096
2097	Stores the given C<$value> in the family hash. Updates are delayed, if you
2098	want the data to be synced to disk immediately, use C<cf::db_sync>.
2099
2100	=item cf::db_dirty
2101
2102	Marks the database as dirty, to be updated at a later time.
2103
2104	=item cf::db_sync
2105
2106	Immediately write the database to disk I<if it is dirty>.
2107
2108	=cut
2109
2110	our $DB;
2111
2112	{
2113	my $path = cf::localdir . "/database.pst";
2114
2115	sub db_load() {
2116	$DB = stat $path ? Storable::retrieve $path : { };
2117	}
2118
2119	my $pid;
2120
2121	sub db_save() {
2122	waitpid $pid, 0 if $pid;
2123	if (0 == ($pid = fork)) {
2124	$DB->{_meta}{version} = 1;
2125	Storable::nstore $DB, "$path~";
2126	rename "$path~", $path;
2127	cf::_exit 0 if defined $pid;
2128	}
2129	}
2130
2131	my $dirty;
2132
2133	sub db_sync() {
2134	db_save if $dirty;
2135	undef $dirty;
2136	}
2137
2138	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2139	db_sync;
2140	});	3391	};
		3392	cf::cede_to_tick;
2141		3393
2142	sub db_dirty() {
2143	$dirty = 1;
2144	$idle->start;
2145	}	3394	{
		3395	my $faces = $facedata->{faceinfo};
2146		3396
2147	sub db_get($;$) {	3397	while (my ($face, $info) = each %$faces) {
2148	@_ >= 2	3398	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2149	? $DB->{$_[0]}{$_[1]}
2150	: ($DB->{$_[0]} ||= { })
2151	}
2152		3399
2153	sub db_put($$;$) {	3400	cf::face::set_visibility $idx, $info->{visibility};
2154	if (@_ >= 3) {	3401	cf::face::set_magicmap $idx, $info->{magicmap};
2155	$DB->{$_[0]}{$_[1]} = $_[2];	3402	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2156	} else {	3403	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2157	$DB->{$_[0]} = $_[1];
2158	}
2159	db_dirty;
2160	}
2161		3404
2162	cf::global->attach (	3405	cf::cede_to_tick;
2163	prio => 10000,
2164	on_cleanup => sub {
2165	db_sync;
2166	},	3406	}
2167	);
2168	}
2169		3407
2170	#############################################################################	3408	while (my ($face, $info) = each %$faces) {
2171	# the server's main()	3409	next unless $info->{smooth};
2172		3410
2173	sub cfg_load {	3411	my $idx = cf::face::find $face
		3412	or next;
		3413
		3414	if (my $smooth = cf::face::find $info->{smooth}) {
		3415	cf::face::set_smooth $idx, $smooth;
		3416	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3417	} else {
		3418	error "smooth face '$info->{smooth}' not found for face '$face'";
		3419	}
		3420
		3421	cf::cede_to_tick;
		3422	}
		3423	}
		3424
		3425	{
		3426	my $anims = $facedata->{animinfo};
		3427
		3428	while (my ($anim, $info) = each %$anims) {
		3429	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3430	cf::cede_to_tick;
		3431	}
		3432
		3433	cf::anim::invalidate_all; # d'oh
		3434	}
		3435
		3436	{
		3437	my $res = $facedata->{resource};
		3438
		3439	while (my ($name, $info) = each %$res) {
		3440	if (defined $info->{type}) {
		3441	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3442
		3443	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3444	cf::face::set_type $idx, $info->{type};
		3445	} else {
		3446	$RESOURCE{$name} = $info; # unused
		3447	}
		3448
		3449	cf::cede_to_tick;
		3450	}
		3451	}
		3452
		3453	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3454
		3455	1
		3456	}
		3457
		3458	register_exticmd fx_want => sub {
		3459	my ($ns, $want) = @_;
		3460
		3461	while (my ($k, $v) = each %$want) {
		3462	$ns->fx_want ($k, $v);
		3463	}
		3464	};
		3465
		3466	sub load_resource_file($) {
		3467	my $guard = lock_acquire "load_resource_file";
		3468
		3469	my $status = load_resource_file_ $_[0];
		3470	get_slot 0.1, 100;
		3471	cf::arch::commit_load;
		3472
		3473	$status
		3474	}
		3475
		3476	sub reload_regions {
		3477	# HACK to clear player env face cache, we need some signal framework
		3478	# for this (global event?)
		3479	%ext::player_env::MUSIC_FACE_CACHE = ();
		3480
		3481	load_resource_file "$MAPDIR/regions"
		3482	or die "unable to load regions file\n";
		3483
		3484	for (cf::region::list) {
		3485	$_->{match} = qr/$_->{match}/
		3486	if exists $_->{match};
		3487	}
		3488	}
		3489
		3490	sub reload_facedata {
		3491	load_facedata "$DATADIR/facedata"
		3492	or die "unable to load facedata\n";
		3493	}
		3494
		3495	sub reload_archetypes {
		3496	load_resource_file "$DATADIR/archetypes"
		3497	or die "unable to load archetypes\n";
		3498	}
		3499
		3500	sub reload_treasures {
		3501	load_resource_file "$DATADIR/treasures"
		3502	or die "unable to load treasurelists\n";
		3503	}
		3504
		3505	sub reload_sound {
		3506	trace "loading sound config from $DATADIR/sound\n";
		3507
		3508	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3509	or die "$DATADIR/sound $!";
		3510
		3511	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3512
		3513	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3514	my $sound = $soundconf->{compat}[$_]
		3515	or next;
		3516
		3517	my $face = cf::face::find "sound/$sound->[1]";
		3518	cf::sound::set $sound->[0] => $face;
		3519	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3520	}
		3521
		3522	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3523	my $face = cf::face::find "sound/$v";
		3524	cf::sound::set $k => $face;
		3525	}
		3526	}
		3527
		3528	sub reload_resources {
		3529	trace "reloading resource files...\n";
		3530
		3531	reload_facedata;
		3532	reload_sound;
		3533	reload_archetypes;
		3534	reload_regions;
		3535	reload_treasures;
		3536
		3537	trace "finished reloading resource files\n";
		3538	}
		3539
		3540	sub reload_config {
		3541	trace "reloading config file...\n";
		3542
2174	open my $fh, "<:utf8", cf::confdir . "/config"	3543	open my $fh, "<:utf8", "$CONFDIR/config"
2175	or return;	3544	or return;
2176		3545
2177	local $/;	3546	local $/;
2178	*CFG = YAML::Syck::Load <$fh>;	3547	*CFG = YAML::XS::Load scalar <$fh>;
2179		3548
2180	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3549	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2181		3550
2182	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3551	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2183	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3552	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2184		3553
2185	if (exists $CFG{mlockall}) {	3554	if (exists $CFG{mlockall}) {
…		…
2187	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3556	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2188	and die "WARNING: m(un)lockall failed: $!\n";	3557	and die "WARNING: m(un)lockall failed: $!\n";
2189	};	3558	};
2190	warn $@ if $@;	3559	warn $@ if $@;
2191	}	3560	}
		3561
		3562	trace "finished reloading resource files\n";
		3563	}
		3564
		3565	sub pidfile() {
		3566	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3567	or die "$PIDFILE: $!";
		3568	flock $fh, &Fcntl::LOCK_EX
		3569	or die "$PIDFILE: flock: $!";
		3570	$fh
		3571	}
		3572
		3573	# make sure only one server instance is running at any one time
		3574	sub atomic {
		3575	my $fh = pidfile;
		3576
		3577	my $pid = <$fh>;
		3578	kill 9, $pid if $pid > 0;
		3579
		3580	seek $fh, 0, 0;
		3581	print $fh $$;
		3582	}
		3583
		3584	sub main_loop {
		3585	trace "EV::loop starting\n";
		3586	if (1) {
		3587	EV::loop;
		3588	}
		3589	trace "EV::loop returned\n";
		3590	goto &main_loop unless $REALLY_UNLOOP;
2192	}	3591	}
2193		3592
2194	sub main {	3593	sub main {
		3594	cf::init_globals; # initialise logging
		3595
		3596	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3597	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3598	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3599	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3600
		3601	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3602
2195	# we must not ever block the main coroutine	3603	# we must not ever block the main coroutine
2196	local $Coro::idle = sub {	3604	local $Coro::idle = sub {
2197	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3605	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2198	async { Event::one_event };	3606	(async {
		3607	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3608	EV::loop EV::LOOP_ONESHOT;
		3609	})->prio (Coro::PRIO_MAX);
2199	};	3610	};
2200		3611
2201	cfg_load;	3612	evthread_start IO::AIO::poll_fileno;
2202	db_load;	3613
		3614	cf::sync_job {
		3615	cf::init_experience;
		3616	cf::init_anim;
		3617	cf::init_attackmess;
		3618	cf::init_dynamic;
		3619
		3620	cf::load_settings;
		3621	cf::load_materials;
		3622
		3623	reload_resources;
		3624	reload_config;
		3625	db_init;
		3626
		3627	cf::init_uuid;
		3628	cf::init_signals;
		3629	cf::init_skills;
		3630
		3631	cf::init_beforeplay;
		3632
		3633	atomic;
		3634
2203	load_extensions;	3635	load_extensions;
2204	Event::loop;	3636
		3637	utime time, time, $RUNTIMEFILE;
		3638
		3639	# no (long-running) fork's whatsoever before this point(!)
		3640	use POSIX ();
		3641	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3642
		3643	(pop @POST_INIT)->(0) while @POST_INIT;
		3644	};
		3645
		3646	cf::object::thawer::errors_are_fatal 0;
		3647	info "parse errors in files are no longer fatal from this point on.\n";
		3648
		3649	main_loop;
2205	}	3650	}
2206		3651
2207	#############################################################################	3652	#############################################################################
2208	# initialisation and cleanup	3653	# initialisation and cleanup
2209		3654
2210	# install some emergency cleanup handlers	3655	# install some emergency cleanup handlers
2211	BEGIN {	3656	BEGIN {
		3657	our %SIGWATCHER = ();
2212	for my $signal (qw(INT HUP TERM)) {	3658	for my $signal (qw(INT HUP TERM)) {
2213	Event->signal (	3659	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2214	data => WF_AUTOCANCEL,
2215	signal => $signal,
2216	cb => sub {
2217	cf::cleanup "SIG$signal";	3660	cf::cleanup "SIG$signal";
2218	},
2219	);	3661	};
		3662	}
		3663	}
		3664
		3665	sub write_runtime_sync {
		3666	my $t0 = AE::time;
		3667
		3668	# first touch the runtime file to show we are still running:
		3669	# the fsync below can take a very very long time.
		3670
		3671	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3672
		3673	my $guard = cf::lock_acquire "write_runtime";
		3674
		3675	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3676	or return;
		3677
		3678	my $value = $cf::RUNTIME + 90 + 10;
		3679	# 10 is the runtime save interval, for a monotonic clock
		3680	# 60 allows for the watchdog to kill the server.
		3681
		3682	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3683	and return;
		3684
		3685	# always fsync - this file is important
		3686	aio_fsync $fh
		3687	and return;
		3688
		3689	# touch it again to show we are up-to-date
		3690	aio_utime $fh, undef, undef;
		3691
		3692	close $fh
		3693	or return;
		3694
		3695	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3696	and return;
		3697
		3698	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3699
2220	}	3700	1
2221	}	3701	}
2222		3702
		3703	our $uuid_lock;
		3704	our $uuid_skip;
		3705
		3706	sub write_uuid_sync($) {
		3707	$uuid_skip ||= $_[0];
		3708
		3709	return if $uuid_lock;
		3710	local $uuid_lock = 1;
		3711
		3712	my $uuid = "$LOCALDIR/uuid";
		3713
		3714	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3715	or return;
		3716
		3717	my $value = uuid_seq uuid_cur;
		3718
		3719	unless ($value) {
		3720	info "cowardly refusing to write zero uuid value!\n";
		3721	return;
		3722	}
		3723
		3724	my $value = uuid_str $value + $uuid_skip;
		3725	$uuid_skip = 0;
		3726
		3727	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3728	and return;
		3729
		3730	# always fsync - this file is important
		3731	aio_fsync $fh
		3732	and return;
		3733
		3734	close $fh
		3735	or return;
		3736
		3737	aio_rename "$uuid~", $uuid
		3738	and return;
		3739
		3740	trace "uuid file written ($value).\n";
		3741
		3742	1
		3743
		3744	}
		3745
		3746	sub write_uuid($$) {
		3747	my ($skip, $sync) = @_;
		3748
		3749	$sync ? write_uuid_sync $skip
		3750	: async { write_uuid_sync $skip };
		3751	}
		3752
2223	sub emergency_save {	3753	sub emergency_save() {
2224	my $freeze_guard = cf::freeze_mainloop;	3754	my $freeze_guard = cf::freeze_mainloop;
2225		3755
2226	warn "enter emergency perl save\n";	3756	info "emergency_perl_save: enter\n";
		3757
		3758	# this is a trade-off: we want to be very quick here, so
		3759	# save all maps without fsync, and later call a global sync
		3760	# (which in turn might be very very slow)
		3761	local $USE_FSYNC = 0;
2227		3762
2228	cf::sync_job {	3763	cf::sync_job {
		3764	cf::write_runtime_sync; # external watchdog should not bark
		3765
2229	# use a peculiar iteration method to avoid tripping on perl	3766	# use a peculiar iteration method to avoid tripping on perl
2230	# refcount bugs in for. also avoids problems with players	3767	# refcount bugs in for. also avoids problems with players
2231	# and maps saved/Destroyed asynchronously.	3768	# and maps saved/destroyed asynchronously.
2232	warn "begin emergency player save\n";	3769	info "emergency_perl_save: begin player save\n";
2233	for my $login (keys %cf::PLAYER) {	3770	for my $login (keys %cf::PLAYER) {
2234	my $pl = $cf::PLAYER{$login} or next;	3771	my $pl = $cf::PLAYER{$login} or next;
2235	$pl->valid or next;	3772	$pl->valid or next;
		3773	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2236	$pl->save;	3774	$pl->save;
2237	}	3775	}
2238	warn "end emergency player save\n";	3776	info "emergency_perl_save: end player save\n";
2239		3777
2240	warn "begin emergency map save\n";	3778	cf::write_runtime_sync; # external watchdog should not bark
		3779
		3780	info "emergency_perl_save: begin map save\n";
2241	for my $path (keys %cf::MAP) {	3781	for my $path (keys %cf::MAP) {
2242	my $map = $cf::MAP{$path} or next;	3782	my $map = $cf::MAP{$path} or next;
2243	$map->valid or next;	3783	$map->valid or next;
2244	$map->save;	3784	$map->save;
2245	}	3785	}
2246	warn "end emergency map save\n";	3786	info "emergency_perl_save: end map save\n";
		3787
		3788	cf::write_runtime_sync; # external watchdog should not bark
		3789
		3790	info "emergency_perl_save: begin database checkpoint\n";
		3791	BDB::db_env_txn_checkpoint $DB_ENV;
		3792	info "emergency_perl_save: end database checkpoint\n";
		3793
		3794	info "emergency_perl_save: begin write uuid\n";
		3795	write_uuid_sync 1;
		3796	info "emergency_perl_save: end write uuid\n";
		3797
		3798	cf::write_runtime_sync; # external watchdog should not bark
		3799
		3800	trace "emergency_perl_save: syncing database to disk";
		3801	BDB::db_env_txn_checkpoint $DB_ENV;
		3802
		3803	info "emergency_perl_save: starting sync\n";
		3804	IO::AIO::aio_sync sub {
		3805	info "emergency_perl_save: finished sync\n";
		3806	};
		3807
		3808	cf::write_runtime_sync; # external watchdog should not bark
		3809
		3810	trace "emergency_perl_save: flushing outstanding aio requests";
		3811	while (IO::AIO::nreqs || BDB::nreqs) {
		3812	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3813	}
		3814
		3815	cf::write_runtime_sync; # external watchdog should not bark
2247	};	3816	};
2248		3817
2249	warn "leave emergency perl save\n";	3818	info "emergency_perl_save: leave\n";
2250	}	3819	}
2251		3820
		3821	sub post_cleanup {
		3822	my ($make_core) = @_;
		3823
		3824	IO::AIO::flush;
		3825
		3826	error Carp::longmess "post_cleanup backtrace"
		3827	if $make_core;
		3828
		3829	my $fh = pidfile;
		3830	unlink $PIDFILE if <$fh> == $$;
		3831	}
		3832
		3833	# a safer delete_package, copied from Symbol
		3834	sub clear_package($) {
		3835	my $pkg = shift;
		3836
		3837	# expand to full symbol table name if needed
		3838	unless ($pkg =~ /^main::.*::$/) {
		3839	$pkg = "main$pkg" if $pkg =~ /^::/;
		3840	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3841	$pkg .= '::' unless $pkg =~ /::$/;
		3842	}
		3843
		3844	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3845	my $stem_symtab = *{$stem}{HASH};
		3846
		3847	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3848	or return;
		3849
		3850	# clear all symbols
		3851	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3852	for my $name (keys %$leaf_symtab) {
		3853	_gv_clear *{"$pkg$name"};
		3854	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3855	}
		3856	}
		3857
2252	sub reload() {	3858	sub do_reload_perl() {
2253	# can/must only be called in main	3859	# can/must only be called in main
2254	if ($Coro::current != $Coro::main) {	3860	if (in_main) {
2255	warn "can only reload from main coroutine\n";	3861	error "can only reload from main coroutine";
2256	return;	3862	return;
2257	}	3863	}
2258		3864
		3865	return if $RELOAD++;
		3866
		3867	my $t1 = AE::time;
		3868
		3869	while ($RELOAD) {
2259	warn "reloading...";	3870	info "reloading...";
2260		3871
2261	my $guard = freeze_mainloop;	3872	trace "entering sync_job";
		3873
		3874	cf::sync_job {
2262	cf::emergency_save;	3875	cf::emergency_save;
2263		3876
2264	eval {
2265	# if anything goes wrong in here, we should simply crash as we already saved
2266
2267	# cancel all watchers
2268	for (Event::all_watchers) {
2269	$_->cancel if $_->data & WF_AUTOCANCEL;
2270	}
2271
2272	# cancel all extension coros	3877	trace "cancelling all extension coros";
2273	$_->cancel for values %EXT_CORO;	3878	$_->cancel for values %EXT_CORO;
2274	%EXT_CORO = ();	3879	%EXT_CORO = ();
2275		3880
2276	# unload all extensions	3881	trace "removing commands";
2277	for (@exts) {	3882	%COMMAND = ();
2278	warn "unloading <$_>";
2279	unload_extension $_;
2280	}
2281		3883
2282	# unload all modules loaded from $LIBDIR	3884	trace "removing ext/exti commands";
2283	while (my ($k, $v) = each %INC) {	3885	%EXTCMD = ();
2284	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3886	%EXTICMD = ();
2285		3887
2286	warn "removing <$k>";	3888	trace "unloading/nuking all extensions";
2287	delete $INC{$k};	3889	for my $pkg (@EXTS) {
		3890	trace "... unloading $pkg";
2288		3891
2289	$k =~ s/\.pm$//;
2290	$k =~ s/\//::/g;
2291
2292	if (my $cb = $k->can ("unload_module")) {	3892	if (my $cb = $pkg->can ("unload")) {
		3893	eval {
2293	$cb->();	3894	$cb->($pkg);
		3895	1
		3896	} or error "$pkg unloaded, but with errors: $@";
		3897	}
		3898
		3899	trace "... clearing $pkg";
		3900	clear_package $pkg;
2294	}	3901	}
2295		3902
2296	Symbol::delete_package $k;	3903	trace "unloading all perl modules loaded from $LIBDIR";
		3904	while (my ($k, $v) = each %INC) {
		3905	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3906
		3907	trace "... unloading $k";
		3908	delete $INC{$k};
		3909
		3910	$k =~ s/\.pm$//;
		3911	$k =~ s/\//::/g;
		3912
		3913	if (my $cb = $k->can ("unload_module")) {
		3914	$cb->();
		3915	}
		3916
		3917	clear_package $k;
2297	}	3918	}
2298		3919
2299	# sync database to disk
2300	cf::db_sync;
2301	IO::AIO::flush;
2302
2303	# get rid of safe::, as good as possible	3920	trace "getting rid of safe::, as good as possible";
2304	Symbol::delete_package "safe::$_"	3921	clear_package "safe::$_"
2305	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3922	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2306		3923
2307	# remove register_script_function callbacks	3924	trace "unloading cf.pm \"a bit\"";
2308	# TODO
2309
2310	# unload cf.pm "a bit"
2311	delete $INC{"cf.pm"};	3925	delete $INC{"cf.pm"};
		3926	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2312		3927
2313	# don't, removes xs symbols, too,	3928	# don't, removes xs symbols, too,
2314	# and global variables created in xs	3929	# and global variables created in xs
2315	#Symbol::delete_package __PACKAGE__;	3930	#clear_package __PACKAGE__;
2316		3931
2317	# reload cf.pm	3932	info "unload completed, starting to reload now";
		3933
2318	warn "reloading cf.pm";	3934	trace "reloading cf.pm";
2319	require cf;	3935	require cf;
2320	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3936	cf::_connect_to_perl_1;
2321		3937
2322	# load config and database again	3938	trace "loading config and database again";
2323	cf::cfg_load;	3939	cf::reload_config;
2324	cf::db_load;
2325		3940
2326	# load extensions
2327	warn "load extensions";	3941	trace "loading extensions";
2328	cf::load_extensions;	3942	cf::load_extensions;
2329		3943
2330	# reattach attachments to objects	3944	if ($REATTACH_ON_RELOAD) {
2331	warn "reattach";	3945	trace "reattaching attachments to objects/players";
2332	_global_reattach;	3946	_global_reattach; # objects, sockets
		3947	trace "reattaching attachments to maps";
2333	reattach $_ for values %MAP;	3948	reattach $_ for values %MAP;
		3949	trace "reattaching attachments to players";
		3950	reattach $_ for values %PLAYER;
		3951	}
		3952
		3953	trace "running post_init jobs";
		3954	(pop @POST_INIT)->(1) while @POST_INIT;
		3955
		3956	trace "leaving sync_job";
		3957
		3958	1
		3959	} or do {
		3960	error $@;
		3961	cf::cleanup "error while reloading, exiting.";
		3962	};
		3963
		3964	info "reloaded";
		3965	--$RELOAD;
		3966	}
		3967
		3968	$t1 = AE::time - $t1;
		3969	info "reload completed in ${t1}s\n";
		3970	};
		3971
		3972	our $RELOAD_WATCHER; # used only during reload
		3973
		3974	sub reload_perl() {
		3975	# doing reload synchronously and two reloads happen back-to-back,
		3976	# coro crashes during coro_state_free->destroy here.
		3977
		3978	$RELOAD_WATCHER ||= cf::async {
		3979	Coro::AIO::aio_wait cache_extensions;
		3980
		3981	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3982	do_reload_perl;
		3983	undef $RELOAD_WATCHER;
		3984	};
2334	};	3985	};
2335
2336	if ($@) {
2337	warn $@;
2338	warn "error while reloading, exiting.";
2339	exit 1;
2340	}
2341
2342	warn "reloaded successfully";
2343	};
2344
2345	#############################################################################
2346
2347	unless ($LINK_MAP) {
2348	$LINK_MAP = cf::map::new;
2349
2350	$LINK_MAP->width (41);
2351	$LINK_MAP->height (41);
2352	$LINK_MAP->alloc;
2353	$LINK_MAP->path ("{link}");
2354	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2355	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2356
2357	# dirty hack because... archetypes are not yet loaded
2358	Event->timer (
2359	after => 10,
2360	cb => sub {
2361	$_[0]->w->cancel;
2362
2363	# provide some exits "home"
2364	my $exit = cf::object::new "exit";
2365
2366	$exit->slaying ($EMERGENCY_POSITION->[0]);
2367	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2368	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2369
2370	$LINK_MAP->insert ($exit->clone, 19, 19);
2371	$LINK_MAP->insert ($exit->clone, 19, 20);
2372	$LINK_MAP->insert ($exit->clone, 19, 21);
2373	$LINK_MAP->insert ($exit->clone, 20, 19);
2374	$LINK_MAP->insert ($exit->clone, 20, 21);
2375	$LINK_MAP->insert ($exit->clone, 21, 19);
2376	$LINK_MAP->insert ($exit->clone, 21, 20);
2377	$LINK_MAP->insert ($exit->clone, 21, 21);
2378
2379	$exit->destroy;
2380	});
2381
2382	$LINK_MAP->{deny_save} = 1;
2383	$LINK_MAP->{deny_reset} = 1;
2384
2385	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2386	}	3986	}
2387
2388	register "<global>", __PACKAGE__;
2389		3987
2390	register_command "reload" => sub {	3988	register_command "reload" => sub {
2391	my ($who, $arg) = @_;	3989	my ($who, $arg) = @_;
2392		3990
2393	if ($who->flag (FLAG_WIZ)) {	3991	if ($who->flag (FLAG_WIZ)) {
2394	$who->message ("start of reload.");
2395	reload;
2396	$who->message ("end of reload.");	3992	$who->message ("reloading server.");
		3993	async {
		3994	$Coro::current->{desc} = "perl_reload";
		3995	reload_perl;
		3996	};
2397	}	3997	}
2398	};	3998	};
2399		3999
2400	unshift @INC, $LIBDIR;	4000	unshift @INC, $LIBDIR;
2401		4001
2402	$TICK_WATCHER = Event->timer (	4002	my $bug_warning = 0;
2403	reentrant => 0,	4003
2404	prio => 0,	4004	our @WAIT_FOR_TICK;
2405	at => $NEXT_TICK || $TICK,	4005	our @WAIT_FOR_TICK_BEGIN;
2406	data => WF_AUTOCANCEL,	4006
2407	cb => sub {	4007	sub wait_for_tick {
		4008	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4009
		4010	my $signal = new Coro::Signal;
		4011	push @WAIT_FOR_TICK, $signal;
		4012	$signal->wait;
		4013	}
		4014
		4015	sub wait_for_tick_begin {
		4016	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4017
		4018	my $signal = new Coro::Signal;
		4019	push @WAIT_FOR_TICK_BEGIN, $signal;
		4020	$signal->wait;
		4021	}
		4022
		4023	sub tick {
		4024	if ($Coro::current != $Coro::main) {
		4025	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4026	unless ++$bug_warning > 10;
		4027	return;
		4028	}
		4029
2408	cf::server_tick; # one server iteration	4030	cf::server_tick; # one server iteration
2409	$RUNTIME += $TICK;
2410	$NEXT_TICK += $TICK;
2411		4031
2412	$WAIT_FOR_TICK->broadcast;	4032	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2413	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2414		4033
2415	# if we are delayed by four ticks or more, skip them all	4034	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2416	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4035	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2417		4036	Coro::async_pool {
2418	$TICK_WATCHER->at ($NEXT_TICK);	4037	$Coro::current->{desc} = "runtime saver";
2419	$TICK_WATCHER->start;
2420	},
2421	);
2422
2423	IO::AIO::max_poll_time $TICK * 0.2;
2424
2425	Event->io (
2426	fd => IO::AIO::poll_fileno,
2427	poll => 'r',
2428	prio => 5,
2429	data => WF_AUTOCANCEL,
2430	cb => \&IO::AIO::poll_cb,
2431	);
2432
2433	Event->timer (
2434	data => WF_AUTOCANCEL,
2435	after => 0,
2436	interval => 10,
2437	cb => sub {
2438	(Coro::unblock_sub {
2439	write_runtime	4038	write_runtime_sync
2440	or warn "ERROR: unable to write runtime file: $!";	4039	or error "ERROR: unable to write runtime file: $!";
2441	})->();	4040	};
2442	},	4041	}
2443	);	4042
		4043	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4044	$sig->send;
		4045	}
		4046	while (my $sig = shift @WAIT_FOR_TICK) {
		4047	$sig->send;
		4048	}
		4049
		4050	$LOAD = ($NOW - $TICK_START) / $TICK;
		4051	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4052
		4053	if (0) {
		4054	if ($NEXT_TICK) {
		4055	my $jitter = $TICK_START - $NEXT_TICK;
		4056	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4057	debug "jitter $JITTER\n";#d#
		4058	}
		4059	}
		4060	}
		4061
		4062	{
		4063	# configure BDB
		4064
		4065	BDB::min_parallel 16;
		4066	BDB::max_poll_reqs $TICK * 0.1;
		4067	$AnyEvent::BDB::WATCHER->priority (1);
		4068
		4069	unless ($DB_ENV) {
		4070	$DB_ENV = BDB::db_env_create;
		4071	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4072	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4073	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4074	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4075	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4076
		4077	cf::sync_job {
		4078	eval {
		4079	BDB::db_env_open
		4080	$DB_ENV,
		4081	$BDBDIR,
		4082	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4083	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4084	0666;
		4085
		4086	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4087	};
		4088
		4089	cf::cleanup "db_env_open(db): $@" if $@;
		4090	};
		4091	}
		4092
		4093	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4094	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4095	};
		4096	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4097	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4098	};
		4099	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4100	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4101	};
		4102	}
		4103
		4104	{
		4105	# configure IO::AIO
		4106
		4107	IO::AIO::min_parallel 8;
		4108	IO::AIO::max_poll_time $TICK * 0.1;
		4109	undef $AnyEvent::AIO::WATCHER;
		4110	}
		4111
		4112	my $_log_backtrace;
		4113
		4114	sub _log_backtrace {
		4115	my ($msg, @addr) = @_;
		4116
		4117	$msg =~ s/\n//;
		4118
		4119	# limit the # of concurrent backtraces
		4120	if ($_log_backtrace < 2) {
		4121	++$_log_backtrace;
		4122	my $perl_bt = Carp::longmess $msg;
		4123	async {
		4124	$Coro::current->{desc} = "abt $msg";
		4125
		4126	my @bt = fork_call {
		4127	@addr = map { sprintf "%x", $_ } @addr;
		4128	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4129	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4130	or die "addr2line: $!";
		4131
		4132	my @funcs;
		4133	my @res = <$fh>;
		4134	chomp for @res;
		4135	while (@res) {
		4136	my ($func, $line) = splice @res, 0, 2, ();
		4137	push @funcs, "[$func] $line";
		4138	}
		4139
		4140	@funcs
		4141	};
		4142
		4143	LOG llevInfo, "[ABT] $perl_bt\n";
		4144	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4145	LOG llevInfo, "[ABT] $_\n" for @bt;
		4146	--$_log_backtrace;
		4147	};
		4148	} else {
		4149	LOG llevInfo, "[ABT] $msg\n";
		4150	LOG llevInfo, "[ABT] [suppressed]\n";
		4151	}
		4152	}
		4153
		4154	# load additional modules
		4155	require "cf/$_.pm" for @EXTRA_MODULES;
		4156	cf::_connect_to_perl_2;
2444		4157
2445	END { cf::emergency_save }	4158	END { cf::emergency_save }
2446		4159
2447	1	4160	1
2448		4161

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