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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.167 by root, Sat Jan 13 23:32:43 2007 UTC vs.
Revision 1.485 by root, Mon Oct 12 14:12:54 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
12		37
		38	use Guard ();
13	use Coro 3.3 ();	39	use Coro ();
		40	use Coro::State;
		41	use Coro::Handle;
		42	use Coro::EV;
14	use Coro::Event;	43	use Coro::AnyEvent;
15	use Coro::Timer;	44	use Coro::Timer;
16	use Coro::Signal;	45	use Coro::Signal;
17	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
18	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
		51	use Coro::Storable;
		52	use Coro::Util ();
19		53
		54	use JSON::XS 2.01 ();
		55	use BDB ();
20	use Data::Dumper;	56	use Data::Dumper;
21	use Digest::MD5;	57	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 = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	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;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	115	our $NEXT_TICK;
50	our $NOW;	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
		120	our $BDB_TRICKLE_WATCHER;
		121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
51		124
52	our %CFG;	125	our %CFG;
53		126
54	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
56		130
57	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64		134
65	# used to convert map paths into valid unix filenames by replacing / by ∕	135	# used to convert map paths into valid unix filenames by replacing / by ∕
66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
67		137
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
		147
68	binmode STDOUT;	148	binmode STDOUT;
69	binmode STDERR;	149	binmode STDERR;
70		150
71	# read virtual server time, if available	151	# read virtual server time, if available
72	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
73	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
74	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
75	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
76	}	156	}
77		157
78	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
79	mkdir cf::localdir . "/" . cf::playerdir;	159
80	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
81	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir $RANDOM_MAPS;
83		162
84	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
		164
		165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
85		177
86	#############################################################################	178	#############################################################################
87		179
88	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
89		181
…		…
96	=item $cf::RUNTIME	188	=item $cf::RUNTIME
97		189
98	The time this server has run, starts at 0 and is increased by $cf::TICK on	190	The time this server has run, starts at 0 and is increased by $cf::TICK on
99	every server tick.	191	every server tick.
100		192
101	=item $cf::LIBDIR	193	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		194	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		195	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
102		196
103	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
104	be found. It will be added to C<@INC> automatically.	198	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		199	unique-items directory, player file directory, random maps directory and
		200	database environment.
105		201
106	=item $cf::NOW	202	=item $cf::NOW
107		203
108	The time of the last (current) server tick.	204	The time of the last (current) server tick.
109		205
110	=item $cf::TICK	206	=item $cf::TICK
111		207
112	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
113		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
114	=item %cf::CFG	220	=item %cf::CFG
115		221
116	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
117	from wherever your confdir points to.	223	from wherever your confdir points to.
118		224
119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
120		226
121	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
122	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	228	returns directly I<after> the tick processing (and consequently, can only wake one process
123	processing has been done. Call C<< ->wait >> on them to maximise the	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
124	window of cpu time available, or simply to synchronise to the server tick.	230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
125		242
126	=back	243	=back
127		244
128	=cut	245	=cut
129		246
130	BEGIN {	247	$Coro::State::WARNHOOK = sub {
131	*CORE::GLOBAL::warn = sub {
132	my $msg = join "", @_;	248	my $msg = join "", @_;
133	utf8::encode $msg;
134		249
135	$msg .= "\n"	250	$msg .= "\n"
136	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
137		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
138	LOG llevError, $msg;	255	LOG llevError, $msg;
139	};	256	};
140	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
141		271
142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
143	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
144	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
145	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
146	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
147	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
148		279
149	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
150	# within the Safe compartment.	281	# within the Safe compartment.
151	for my $pkg (qw(	282	for my $pkg (qw(
152	cf::global cf::attachable	283	cf::global cf::attachable
153	cf::object cf::object::player	284	cf::object cf::object::player
154	cf::client cf::player	285	cf::client cf::player
155	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
156	cf::map cf::party cf::region	288	cf::party cf::region
157	)) {	289	)) {
158	no strict 'refs';
159	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
160	}	291	}
161		292
162	$Event::DIED = sub {	293	$EV::DIED = sub {
163	warn "error in event callback: @_";	294	warn "error in event callback: @_";
164	};	295	};
		296
		297	#############################################################################
165		298
166	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
167		300
168	=over 4	301	=over 4
169		302
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	322	$d
190	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
191	}	324	}
192		325
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
196		327
197	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
198		329
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
207		331
208	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
209		333
210	=cut	334	=cut
211		335
212	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	337
214	JSON::Syck::Dump $_[0]	338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
215	}	353	}
216		354
217	=item cf::lock_wait $string	355	=item cf::lock_wait $string
218		356
219	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
220		358
221	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
222		360
223	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
226	returned.	364	returned.
227		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
228	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
230		371
231	=cut	372	=item $locked = cf::lock_active $string
232		373
233	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
234		379
235	sub lock_wait($) {	380	sub lock_wait($) {
236	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
237
238	# wait for lock, if any
239	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;
242	}
243	}	382	}
244		383
245	sub lock_acquire($) {	384	sub lock_acquire($) {
246	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
247		387
248	# wait, to be sure we are not locked	388	sub lock_active($) {
249	lock_wait $key;	389	$LOCKS->count ($_[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	}	390	}
258		391
259	sub freeze_mainloop {	392	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
261		394
262	my $guard = Coro::guard { $TICK_WATCHER->start };	395	&Guard::guard (\&tick_inhibit_dec);
263	$TICK_WATCHER->stop;	396	}
264	$guard	397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
		456	}
		457	};
		458
		459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
265	}	471	}
266		472
267	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
268		474
269	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		480
275	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
276		482
277	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
278		484
279	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
282		489
283	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
286	fast or be very important.	493	fast or be very important.
…		…
289		496
290	sub sync_job(&) {	497	sub sync_job(&) {
291	my ($job) = @_;	498	my ($job) = @_;
292		499
293	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
294	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
296		505
297	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	507
299	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
300		509
301	my $busy = 1;	510	my $busy = 1;
302	my @res;	511	my @res;
303		512
304	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	515	@res = eval { $job->() };
306	warn $@ if $@;	516	warn $@ if $@;
307	undef $busy;	517	undef $busy;
308	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
309		519
310	while ($busy) {	520	while ($busy) {
311	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
312	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
313		531
314	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
315	} else {	533	} else {
316	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
317		535
…		…
337	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
338		556
339	$coro	557	$coro
340	}	558	}
341		559
342	sub write_runtime {	560	=item fork_call { }, $args
343	return unless $TICK_WATCHER->is_active;
344		561
345	my $runtime = cf::localdir . "/runtime";	562	Executes the given code block with the given arguments in a seperate
		563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
346		566
347	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	567	=cut
348	or return;
349		568
350	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	569	sub fork_call(&@) {
351	(aio_write $fh, 0, (length $value), $value, 0) <= 0	570	my ($cb, @args) = @_;
352	and return;
353		571
354	aio_fsync $fh	572	# we seemingly have to make a local copy of the whole thing,
355	and return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
356		575
357	close $fh	576	my @res = Coro::Util::fork_eval {
358	or return;	577	reset_signals;
		578	&$cb
		579	}, @args;
359		580
360	aio_rename "$runtime~", $runtime	581	wantarray ? @res : $res[-1]
361	and return;	582	}
362		583
		584	=item $coin = coin_from_name $name
		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
363	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
		736	}
		737
		738	=item cf::datalog type => key => value, ...
		739
		740	Log a datalog packet of the given type with the given key-value pairs.
		741
		742	=cut
		743
		744	sub datalog($@) {
		745	my ($type, %kv) = @_;
		746	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
364	}	747	}
365		748
366	=back	749	=back
367		750
368	=cut	751	=cut
369		752
370	#############################################################################	753	#############################################################################
371		754
372	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
373		756
374	Many objects in crossfire are so-called attachable objects. That means you can	757	Many objects in deliantra are so-called attachable objects. That means you can
375	attach callbacks/event handlers (a collection of which is called an "attachment")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
376	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
377		760
378	In the following description, CLASS can be any of C<global>, C<object>	761	In the following description, CLASS can be any of C<global>, C<object>
379	C<player>, C<client> or C<map> (i.e. the attachable objects in	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
380	crossfire+).	763	Deliantra).
381		764
382	=over 4	765	=over 4
383		766
384	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
385		768
…		…
429	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
430		813
431	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
432	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
433		816
434	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
435	that are attached at load/instantiate time, thus the need for a name.	818	that are attached at load/instantiate time, thus the need for a name.
436		819
437	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
438		821
439	=over 4	822	=over 4
…		…
499	our @CB_TYPE = (); # registry for type (cf-object class) based events	882	our @CB_TYPE = (); # registry for type (cf-object class) based events
500	our @CB_MAP = ();	883	our @CB_MAP = ();
501		884
502	my %attachment;	885	my %attachment;
503		886
		887	sub cf::attachable::thawer_merge {
		888	# simply override everything except _meta
		889	local $_[0]{_meta};
		890	%{$_[0]} = %{$_[1]};
		891	}
		892
504	sub _attach_cb($$$$) {	893	sub _attach_cb($$$$) {
505	my ($registry, $event, $prio, $cb) = @_;	894	my ($registry, $event, $prio, $cb) = @_;
506		895
507	use sort 'stable';	896	use sort 'stable';
508		897
…		…
542	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
543		932
544	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
545	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
546	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
547	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
548		937
549	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
550	my $pkg = shift @arg;	939	my $pkg = shift @arg;
551		940
552	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
581	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
582	}	971	}
583		972
584	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
585	} else {	974	} else {
586	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
587	}	976	}
588		977
589	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
590	}	979	}
591		980
…		…
593	if (ref $_[0]) {	982	if (ref $_[0]) {
594	_object_attach @_;	983	_object_attach @_;
595	} else {	984	} else {
596	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
597	}	986	}
		987	_recalc_want;
598	};	988	};
599		989
600	# all those should be optimised	990	# all those should be optimised
601	sub cf::attachable::detach {	991	sub cf::attachable::detach {
602	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
605	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
606	reattach ($obj);	996	reattach ($obj);
607	} else {	997	} else {
608	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
609	}	999	}
		1000	_recalc_want;
610	};	1001	};
611		1002
612	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
613	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
614		1005
…		…
629	";	1020	";
630	die if $@;	1021	die if $@;
631	}	1022	}
632		1023
633	our $override;	1024	our $override;
634	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
635		1026
636	sub override {	1027	sub override {
637	$override = 1;	1028	$override = 1;
638	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
639	}	1030	}
640		1031
641	sub do_invoke {	1032	sub do_invoke {
642	my $event = shift;	1033	my $event = shift;
643	my $callbacks = shift;	1034	my $callbacks = shift;
644		1035
645	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
646		1037
647	local $override;	1038	local $override;
648		1039
649	for (@$callbacks) {	1040	for (@$callbacks) {
650	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
659	}	1050	}
660		1051
661	0	1052	0
662	}	1053	}
663		1054
664	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
665		1056
666	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
667		1058
668	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
669		1060
670	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
671	removed in future versions), and there is no public API to access override	1062	removed in future versions), and there is no public API to access override
672	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
673		1064
674	=back	1065	=back
675		1066
676	=cut	1067	=cut
677		1068
678	#############################################################################	1069	#############################################################################
679	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
680		1113
681	sub reattach {	1114	sub reattach {
682	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
683	my ($obj) = @_;	1116	my ($obj) = @_;
		1117
		1118	# no longer needed after getting rid of delete_package?
		1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684		1120
685	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
686		1122
687	@$registry = ();	1123	@$registry = ();
688		1124
…		…
703	cf::attachable->attach (	1139	cf::attachable->attach (
704	prio => -1000000,	1140	prio => -1000000,
705	on_instantiate => sub {	1141	on_instantiate => sub {
706	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
707		1143
708	$data = from_json $data;	1144	$data = decode_json $data;
709		1145
710	for (@$data) {	1146	for (@$data) {
711	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
712		1148
713	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
729	sub object_freezer_save {	1165	sub object_freezer_save {
730	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
731		1167
732	sync_job {	1168	sync_job {
733	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
734	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
735	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
736		1173
737	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
739	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1177	if ($cf::USE_FSYNC) {
		1178	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
740	aio_fsync $fh;	1179	aio_fsync $fh;
		1180	}
741	close $fh;	1181	aio_close $fh;
742		1182
743	if (@$objs) {	1183	if (@$objs) {
744	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
745	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
746	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
747	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
		1188	if ($cf::USE_FSYNC) {
		1189	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
748	aio_fsync $fh;	1190	aio_fsync $fh;
		1191	}
749	close $fh;	1192	aio_close $fh;
750	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
751	}	1194	}
752	} else {	1195	} else {
753	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
754	}	1197	}
755		1198
756	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
757	} else {	1203	} else {
758	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
759	}	1205	}
760	} else {	1206	} else {
761	aio_unlink $filename;	1207	aio_unlink $filename;
762	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
763	}	1209	}
764	}	1210	};
765	}	1211	}
766		1212
767	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
768	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
769		1215
…		…
781	or return;	1227	or return;
782		1228
783	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
784	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
785	or return;	1231	or return;
		1232
786	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
787	}	1235	}
788		1236
		1237	utf8::decode (my $decname = $filename);
789	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
790	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
791	return ($data, $av);	1241	($data, $av)
792	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
793		1249
794	#############################################################################	1250	#############################################################################
795	# command handling &c	1251	# command handling &c
796		1252
797	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
810	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
811	}	1267	}
812		1268
813	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
814		1270
815	Register a callbackf ro execution when the client sends an extcmd packet.	1271	Register a callback for execution when the client sends an (synchronous)
		1272	extcmd packet. Ext commands will be processed in the order they are
		1273	received by the server, like other user commands. The first argument is
		1274	the logged-in player. Ext commands can only be processed after a player
		1275	has logged in successfully.
816		1276
817	If the callback returns something, it is sent back as if reply was being	1277	If the callback returns something, it is sent back as if reply was being
818	called.	1278	called.
819		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
820	=cut	1291	=cut
821		1292
822	sub register_extcmd {	1293	sub register_extcmd {
823	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
824		1295
825	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
826	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
827		1306
828	cf::player->attach (	1307	cf::player->attach (
829	on_command => sub {	1308	on_command => sub {
830	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
831		1310
…		…
839	cf::override;	1318	cf::override;
840	},	1319	},
841	on_extcmd => sub {	1320	on_extcmd => sub {
842	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
843		1322
844	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
845		1324
846	if (ref $msg) {	1325	if (ref $msg) {
		1326	my ($type, $reply, @payload) =
		1327	"ARRAY" eq ref $msg
		1328	? @$msg
		1329	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1330
		1331	my @reply;
		1332
847	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
848	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
849	$pl->ext_reply ($msg->{msgid}, %reply);
850	}
851	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
852	} else {	1340	} else {
853	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
854	}	1342	}
855		1343
856	cf::override;	1344	cf::override;
857	},	1345	},
858	);	1346	);
859		1347
		1348	# "readahead" all extensions
860	sub load_extension {	1349	sub cache_extensions {
861	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
862		1351
863	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
864	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
865	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
866	$pkg =~ s/[^[:word:]]/_/g;
867	$pkg = "ext::$pkg";
868
869	warn "... loading '$path' into '$pkg'\n";
870
871	open my $fh, "<:utf8", $path
872	or die "$path: $!";
873
874	my $source =
875	"package $pkg; use strict; use utf8;\n"
876	. "#line 1 \"$path\"\n{\n"
877	. (do { local $/; <$fh> })
878	. "\n};\n1";
879
880	unless (eval $source) {
881	my $msg = $@ ? "$path: $@\n"
882	: "extension disabled.\n";
883	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
884	warn $@;
885	warn "mandatory extension failed to load, exiting.\n";
886	exit 1;
887	}	1355	}
888	die $@;
889	}	1356	};
890		1357
891	push @EXTS, $pkg;	1358	$grp
892	}	1359	}
893		1360
894	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
895	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
896	next unless -r $ext;	1366	next unless -r $path;
897	eval {	1367
898	load_extension $ext;	1368	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1369	my $base = $1;
		1370	my $pkg = $1;
		1371	$pkg =~ s/[^[:word:]]/_/g;
		1372	$pkg = "ext::$pkg";
		1373
		1374	open my $fh, "<:utf8", $path
		1375	or die "$path: $!";
		1376
		1377	my $source = do { local $/; <$fh> };
		1378
		1379	my %ext = (
		1380	path => $path,
		1381	base => $base,
		1382	pkg => $pkg,
		1383	);
		1384
		1385	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1386	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1387
		1388	$ext{source} =
		1389	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1390	. "#line 1 \"$path\"\n{\n"
		1391	. $source
		1392	. "\n};\n1";
		1393
		1394	$todo{$base} = \%ext;
		1395	}
		1396
		1397	my %done;
		1398	while (%todo) {
		1399	my $progress;
		1400
		1401	while (my ($k, $v) = each %todo) {
		1402	for (split /,\s*/, $v->{meta}{depends}) {
		1403	goto skip
		1404	unless exists $done{$_};
		1405	}
		1406
		1407	warn "... loading '$k' into '$v->{pkg}'\n";
		1408
		1409	unless (eval $v->{source}) {
		1410	my $msg = $@ ? "$v->{path}: $@\n"
		1411	: "$v->{base}: extension inactive.\n";
		1412
		1413	if (exists $v->{meta}{mandatory}) {
		1414	warn $msg;
		1415	cf::cleanup "mandatory extension failed to load, exiting.";
		1416	}
		1417
		1418	warn $msg;
		1419	}
		1420
		1421	$done{$k} = delete $todo{$k};
		1422	push @EXTS, $v->{pkg};
		1423	$progress = 1;
899	1	1424	}
900	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
901	}	1430	};
902	}	1431	}
903		1432
904	#############################################################################	1433	#############################################################################
905		1434
		1435	=back
		1436
906	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
907		1438
908	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
909		1440
910	=cut	1441	=cut
911		1442
912	package cf::player;	1443	package cf::player;
913		1444
…		…
915		1446
916	=head3 cf::player	1447	=head3 cf::player
917		1448
918	=over 4	1449	=over 4
919		1450
		1451	=item cf::player::num_playing
		1452
		1453	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1454
		1455	=cut
		1456
		1457	sub num_playing {
		1458	scalar grep
		1459	$_->ob->map
		1460	&& !$_->hidden
		1461	&& !$_->ob->flag (cf::FLAG_WIZ),
		1462	cf::player::list
		1463	}
		1464
920	=item cf::player::find $login	1465	=item cf::player::find $login
921		1466
922	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
923		1468
924	=cut	1469	=cut
925		1470
926	sub playerdir($) {	1471	sub playerdir($) {
927	cf::localdir	1472	"$PLAYERDIR/"
928	. "/"
929	. cf::playerdir
930	. "/"
931	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1473	. (ref $_[0] ? $_[0]->ob->name : $_[0])
932	}	1474	}
933		1475
934	sub path($) {	1476	sub path($) {
935	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1477	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
936		1478
937	(playerdir $login) . "/$login.pl"	1479	(playerdir $login) . "/playerdata"
938	}	1480	}
939		1481
940	sub find_active($) {	1482	sub find_active($) {
941	$cf::PLAYER{$_[0]}	1483	$cf::PLAYER{$_[0]}
942	and $cf::PLAYER{$_[0]}->active	1484	and $cf::PLAYER{$_[0]}->active
…		…
945		1487
946	sub exists($) {	1488	sub exists($) {
947	my ($login) = @_;	1489	my ($login) = @_;
948		1490
949	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
950	or cf::sync_job { !aio_stat $login }	1492	or !aio_stat path $login
951	}	1493	}
952		1494
953	sub find($) {	1495	sub find($) {
954	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
955	my $login = $_[0];	1497	my $login = $_[0];
956		1498
957	my $guard = cf::lock_acquire "user_find:$login";	1499	my $guard = cf::lock_acquire "user_find:$login";
958		1500
959	$cf::PLAYER{$_[0]} || do {	1501	$cf::PLAYER{$_[0]} || do {
960	my $pl = load_pl path $login	1502	# rename old playerfiles to new ones
		1503	#TODO: remove when no longer required
		1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1507	aio_unlink +(playerdir $login) . "/$login.pl";
		1508
		1509	my $f = new_from_file cf::object::thawer path $login
961	or return;	1510	or return;
		1511
		1512	my $pl = cf::player::load_pl $f
		1513	or return;
		1514
		1515	local $cf::PLAYER_LOADING{$login} = $pl;
		1516	$f->resolve_delayed_derefs;
962	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
963	}	1518	}
964	}	1519	}
965	}	1520	}
966		1521
…		…
975	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
976		1531
977	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
978	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
979		1534
		1535	cf::get_slot 0.01;
		1536
980	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
981	Coro::cede;	1538	cf::cede_to_tick;
982	}	1539	}
983		1540
984	sub new($) {	1541	sub new($) {
985	my ($login) = @_;	1542	my ($login) = @_;
986		1543
…		…
992	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
993		1550
994	$self	1551	$self
995	}	1552	}
996		1553
		1554	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1555
		1556	=cut
		1557
		1558	sub send_msg {
		1559	my $ns = shift->ns
		1560	or return;
		1561	$ns->send_msg (@_);
		1562	}
		1563
997	=item $pl->quit_character	1564	=item $pl->quit_character
998		1565
999	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1000	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1001		1568
1002	=cut	1569	=cut
1003		1570
1004	sub quit_character {	1571	sub quit_character {
1005	my ($pl) = @_;	1572	my ($pl) = @_;
1006		1573
		1574	my $name = $pl->ob->name;
		1575
1007	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1008	$pl->password ("*"); # this should lock out the player until we nuked the dir	1577	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1009		1578
1010	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1011	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1012	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1013	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1014		1585
1015	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1016	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
1017	aio_rename $path, $temp;	1588	aio_rename $path, $temp;
1018	delete $cf::PLAYER{$pl->ob->name};	1589	delete $cf::PLAYER{$pl->ob->name};
1019	$pl->destroy;	1590	$pl->destroy;
		1591
		1592	my $prefix = qr<^~\Q$name\E/>;
		1593
		1594	# nuke player maps
		1595	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1596
1020	IO::AIO::aio_rmtree $temp;	1597	IO::AIO::aio_rmtree $temp;
		1598	}
		1599
		1600	=item $pl->kick
		1601
		1602	Kicks a player out of the game. This destroys the connection.
		1603
		1604	=cut
		1605
		1606	sub kick {
		1607	my ($pl, $kicker) = @_;
		1608
		1609	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1610	$pl->killer ("kicked");
		1611	$pl->ns->destroy;
1021	}	1612	}
1022		1613
1023	=item cf::player::list_logins	1614	=item cf::player::list_logins
1024		1615
1025	Returns am arrayref of all valid playernames in the system, can take a	1616	Returns am arrayref of all valid playernames in the system, can take a
1026	while and may block, so not sync_job-capable, ever.	1617	while and may block, so not sync_job-capable, ever.
1027		1618
1028	=cut	1619	=cut
1029		1620
1030	sub list_logins {	1621	sub list_logins {
1031	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1622	my $dirs = aio_readdir $PLAYERDIR
1032	or return [];	1623	or return [];
1033		1624
1034	my @logins;	1625	my @logins;
1035		1626
1036	for my $login (@$dirs) {	1627	for my $login (@$dirs) {
		1628	my $path = path $login;
		1629
		1630	# a .pst is a dead give-away for a valid player
		1631	# if no pst file found, open and chekc for blocked users
		1632	if (aio_stat "$path.pst") {
1037	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1038	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1039	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1040		1637
1041	utf8::decode $login;	1638	utf8::decode $login;
1042	push @logins, $login;	1639	push @logins, $login;
1043	}	1640	}
1044		1641
…		…
1052		1649
1053	=cut	1650	=cut
1054		1651
1055	sub maps($) {	1652	sub maps($) {
1056	my ($pl) = @_;	1653	my ($pl) = @_;
		1654
		1655	$pl = ref $pl ? $pl->ob->name : $pl;
1057		1656
1058	my $files = aio_readdir playerdir $pl	1657	my $files = aio_readdir playerdir $pl
1059	or return;	1658	or return;
1060		1659
1061	my @paths;	1660	my @paths;
…		…
1063	for (@$files) {	1662	for (@$files) {
1064	utf8::decode $_;	1663	utf8::decode $_;
1065	next if /\.(?:pl|pst)$/;	1664	next if /\.(?:pl|pst)$/;
1066	next unless /^$PATH_SEP/o;	1665	next unless /^$PATH_SEP/o;
1067		1666
1068	s/\.map$//;	1667	push @paths, cf::map::normalise "~$pl/$_";
1069	push @paths, "~" . $pl->ob->name . "/" . $_;
1070	}	1668	}
1071		1669
1072	\@paths	1670	\@paths
1073	}	1671	}
1074		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1075	=item $player->ext_reply ($msgid, $msgtype, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1076		1678
1077	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1078		1680
1079	=cut	1681	=cut
1080		1682
1081	sub ext_reply($$$%) {	1683	sub ext_reply($$@) {
1082	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1083		1685
1084	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1085
1086	$self->send ("ext " . cf::to_json \%msg);
1087	}	1687	}
1088		1688
1089	package cf;	1689	=item $player->ext_msg ($type, @msg)
		1690
		1691	Sends an ext event to the client.
		1692
		1693	=cut
		1694
		1695	sub ext_msg($$@) {
		1696	my ($self, $type, @msg) = @_;
		1697
		1698	$self->ns->ext_msg ($type, @msg);
		1699	}
		1700
		1701	=head3 cf::region
		1702
		1703	=over 4
		1704
		1705	=cut
		1706
		1707	package cf::region;
		1708
		1709	=item cf::region::find_by_path $path
		1710
		1711	Tries to decuce the likely region for a map knowing only its path.
		1712
		1713	=cut
		1714
		1715	sub find_by_path($) {
		1716	my ($path) = @_;
		1717
		1718	my ($match, $specificity);
		1719
		1720	for my $region (list) {
		1721	if ($region->{match} && $path =~ $region->{match}) {
		1722	($match, $specificity) = ($region, $region->specificity)
		1723	if $region->specificity > $specificity;
		1724	}
		1725	}
		1726
		1727	$match
		1728	}
1090		1729
1091	=back	1730	=back
1092
1093		1731
1094	=head3 cf::map	1732	=head3 cf::map
1095		1733
1096	=over 4	1734	=over 4
1097		1735
…		…
1101		1739
1102	use Fcntl;	1740	use Fcntl;
1103	use Coro::AIO;	1741	use Coro::AIO;
1104		1742
1105	use overload	1743	use overload
1106	'""' => \&as_string;	1744	'""' => \&as_string,
		1745	fallback => 1;
1107		1746
1108	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1109	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1110		1749
1111	sub generate_random_map {	1750	sub generate_random_map {
1112	my ($self, $rmp) = @_;	1751	my ($self, $rmp) = @_;
		1752
		1753	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1113		1754
1114	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1115	$self->_create_random_map (	1756	$self->_create_random_map (
1116	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1117	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
…		…
1125	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1766	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1126	(cf::region::find $rmp->{region}), $rmp->{custom}	1767	(cf::region::find $rmp->{region}), $rmp->{custom}
1127	)	1768	)
1128	}	1769	}
1129		1770
		1771	=item cf::map->register ($regex, $prio)
		1772
		1773	Register a handler for the map path matching the given regex at the
		1774	givne priority (higher is better, built-in handlers have priority 0, the
		1775	default).
		1776
		1777	=cut
		1778
1130	sub register {	1779	sub register {
1131	my (undef, $regex) = @_;	1780	my (undef, $regex, $prio) = @_;
1132	my $pkg = caller;	1781	my $pkg = caller;
1133		1782
1134	no strict;	1783	no strict;
1135	push @{"$pkg\::ISA"}, __PACKAGE__;	1784	push @{"$pkg\::ISA"}, __PACKAGE__;
1136		1785
1137	$EXT_MAP{$pkg} = qr<$regex>;	1786	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1138	}	1787	}
1139		1788
1140	# also paths starting with '/'	1789	# also paths starting with '/'
1141	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1790	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1791
		1792	sub thawer_merge {
		1793	my ($self, $merge) = @_;
		1794
		1795	# we have to keep some variables in memory intact
		1796	local $self->{path};
		1797	local $self->{load_path};
		1798
		1799	$self->SUPER::thawer_merge ($merge);
		1800	}
1142		1801
1143	sub normalise {	1802	sub normalise {
1144	my ($path, $base) = @_;	1803	my ($path, $base) = @_;
		1804
		1805	$path = "$path"; # make sure its a string
		1806
		1807	$path =~ s/\.map$//;
1145		1808
1146	# map plan:	1809	# map plan:
1147	#	1810	#
1148	# /! non-realised random map exit (special hack!)	1811	# /! non-realised random map exit (special hack!)
1149	# {... are special paths that are not being touched	1812	# {... are special paths that are not being touched
…		…
1177		1840
1178	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1841	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1179		1842
1180	$path = normalise $path, $base;	1843	$path = normalise $path, $base;
1181		1844
1182	for my $pkg (keys %EXT_MAP) {	1845	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1183	if ($path =~ $EXT_MAP{$pkg}) {	1846	if ($path =~ $EXT_MAP{$pkg}[1]) {
1184	my $self = bless cf::map::new, $pkg;	1847	my $self = bless cf::map::new, $pkg;
1185	$self->{path} = $path; $self->path ($path);	1848	$self->{path} = $path; $self->path ($path);
1186	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1187	return $self;	1850	return $self;
1188	}	1851	}
1189	}	1852	}
1190		1853
1191	Carp::carp "unable to resolve path '$path'.";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1192	()	1855	()
1193	}	1856	}
1194		1857
1195	sub init {	1858	sub init {
1196	my ($self) = @_;	1859	my ($self) = @_;
…		…
1211		1874
1212	# the original (read-only) location	1875	# the original (read-only) location
1213	sub load_path {	1876	sub load_path {
1214	my ($self) = @_;	1877	my ($self) = @_;
1215		1878
1216	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1879	"$MAPDIR/$self->{path}.map"
1217	}	1880	}
1218		1881
1219	# the temporary/swap location	1882	# the temporary/swap location
1220	sub save_path {	1883	sub save_path {
1221	my ($self) = @_;	1884	my ($self) = @_;
1222		1885
1223	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1224	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1887	"$TMPDIR/$path.map"
1225	}	1888	}
1226		1889
1227	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1228	sub uniq_path {	1891	sub uniq_path {
1229	my ($self) = @_;	1892	my ($self) = @_;
1230		1893
1231	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1232	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1895	"$UNIQUEDIR/$path"
1233	}	1896	}
1234		1897
1235	# and all this just because we cannot iterate over	1898	sub decay_objects {
1236	# all maps in C++...
1237	sub change_all_map_light {
1238	my ($change) = @_;	1899	my ($self) = @_;
1239		1900
1240	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1241	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1242	}	1904	}
1243		1905
1244	sub unlink_save {	1906	sub unlink_save {
1245	my ($self) = @_;	1907	my ($self) = @_;
1246		1908
1247	utf8::encode (my $save = $self->save_path);	1909	utf8::encode (my $save = $self->save_path);
1248	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1910	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1249	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1911	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1250	}	1912	}
1251		1913
1252	sub load_header_from($) {	1914	sub load_header_from($) {
1253	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1254		1916
1255	utf8::encode $path;	1917	utf8::encode $path;
1256	aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1257	or return;	1919	or return;
1258		1920
1259	$self->_load_header ($path)	1921	$self->_load_header ($f)
1260	or return;	1922	or return;
1261		1923
		1924	local $MAP_LOADING{$self->{path}} = $self;
		1925	$f->resolve_delayed_derefs;
		1926
1262	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1263		1928
1264	1	1929	1
1265	}	1930	}
1266		1931
1267	sub load_orig {	1932	sub load_header_orig {
1268	my ($self) = @_;	1933	my ($self) = @_;
1269		1934
1270	$self->load_header_from ($self->load_path)	1935	$self->load_header_from ($self->load_path)
1271	}	1936	}
1272		1937
1273	sub load_temp {	1938	sub load_header_temp {
1274	my ($self) = @_;	1939	my ($self) = @_;
1275		1940
1276	$self->load_header_from ($self->save_path)	1941	$self->load_header_from ($self->save_path)
		1942	}
		1943
		1944	sub prepare_temp {
		1945	my ($self) = @_;
		1946
		1947	$self->last_access ((delete $self->{last_access})
		1948	|| $cf::RUNTIME); #d#
		1949	# safety
		1950	$self->{instantiate_time} = $cf::RUNTIME
		1951	if $self->{instantiate_time} > $cf::RUNTIME;
		1952	}
		1953
		1954	sub prepare_orig {
		1955	my ($self) = @_;
		1956
		1957	$self->{load_original} = 1;
		1958	$self->{instantiate_time} = $cf::RUNTIME;
		1959	$self->last_access ($cf::RUNTIME);
		1960	$self->instantiate;
1277	}	1961	}
1278		1962
1279	sub load_header {	1963	sub load_header {
1280	my ($self) = @_;	1964	my ($self) = @_;
1281		1965
1282	if ($self->load_temp) {	1966	if ($self->load_header_temp) {
1283	$self->last_access ((delete $self->{last_access})	1967	$self->prepare_temp;
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$self->{instantiate_time} = $cf::RUNTIME
1287	if $self->{instantiate_time} > $cf::RUNTIME;
1288	} else {	1968	} else {
1289	$self->load_orig	1969	$self->load_header_orig
1290	or return;	1970	or return;
1291		1971	$self->prepare_orig;
1292	$self->{load_original} = 1;
1293	$self->{instantiate_time} = $cf::RUNTIME;
1294	$self->last_access ($cf::RUNTIME);
1295	$self->instantiate;
1296	}	1972	}
		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
		1977	$self->default_region (cf::region::find_by_path $self->{path})
		1978	unless $self->default_region;
1297		1979
1298	1	1980	1
1299	}	1981	}
1300		1982
1301	sub find;	1983	sub find;
1302	sub find {	1984	sub find {
1303	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1304		1986
1305	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1306		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1307	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1308		1991
1309	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1310	my $guard = cf::lock_acquire "map_find:$path";
1311	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1312	or return;	1994	or return;
1313		1995
1314	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1315		1997
1316	$map->load_header	1998	$map->load_header
1317	or return;	1999	or return;
1318		2000
1319	if ($map->should_reset) {	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2002	# doing this can freeze the server in a sync job, obviously
		2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1320	$map->reset;	2006	$map->reset;
1321	undef $guard;
1322	$map = find $path	2007	return find $path;
1323	or return;
1324	}	2008	}
1325		2009
1326	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1327	}	2011	}
1328	}	2012	}
		2013
		2014	sub pre_load { }
		2015	sub post_load { }
1329		2016
1330	sub load {	2017	sub load {
1331	my ($self) = @_;	2018	my ($self) = @_;
1332		2019
		2020	local $self->{deny_reset} = 1; # loading can take a long time
		2021
1333	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1334	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1335		2026
		2027	return unless $self->valid;
1336	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1337		2029
1338	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1339		2031
1340	$self->alloc;	2032	$self->alloc;
1341	$self->_load_objects ($self->{load_path}, 1)	2033
		2034	$self->pre_load;
		2035	cf::cede_to_tick;
		2036
		2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
		2039	$self->_load_objects ($f)
1342	or return;	2040	or return;
1343		2041
1344	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1345	if delete $self->{load_original};	2043	if delete $self->{load_original};
1346		2044
1347	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1348	utf8::encode $uniq;	2046	utf8::encode $uniq;
1349	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1350	$self->clear_unique_items;	2049	$self->clear_unique_items;
1351	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1352	}	2053	}
1353	}	2054	}
1354		2055
1355	Coro::cede;	2056	$f->resolve_delayed_derefs;
1356		2057
		2058	cf::cede_to_tick;
1357	# now do the right thing for maps	2059	# now do the right thing for maps
1358	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1359
1360	unless ($self->{deny_activate}) {
1361	$self->decay_objects;
1362	$self->fix_auto_apply;
1363	$self->update_buttons;
1364	Coro::cede;
1365	$self->set_darkness_map;
1366	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1367	unless $self->difficulty;	2062	unless $self->difficulty;
1368	Coro::cede;	2063	cf::cede_to_tick;
		2064
		2065	unless ($self->{deny_activate}) {
		2066	$self->decay_objects;
		2067	$self->fix_auto_apply;
		2068	$self->update_buttons;
		2069	cf::cede_to_tick;
1369	$self->activate;	2070	$self->activate;
1370	}	2071	}
1371		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
1372	$self->in_memory (cf::MAP_IN_MEMORY);	2076	$self->in_memory (cf::MAP_ACTIVE);
		2077	}
		2078
		2079	$self->post_load;
1373	}	2080	}
1374		2081
1375	sub customise_for {	2082	sub customise_for {
1376	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1377		2084
1378	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1379	if $self->per_player;	2086	if $self->per_player;
1380		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1381	$self	2091	$self
1382	}	2092	}
1383		2093
1384	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1385	sub load_diag {	2095	sub load_neighbours {
1386	my ($map) = @_;	2096	my ($map) = @_;
1387		2097
1388	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1389		2099
1390	for (0 .. 3) {	2100	for (0 .. 3) {
1391	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1392	or next;	2102	or next;
1393	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1394	or next;	2104	or next;
1395	$neigh->load;	2105	$neigh->load;
1396		2106
		2107	push @neigh,
1397	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1398	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1399	}	2110	}
1400		2111
1401	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1402	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1403	or next;	2115	or next;
1404	$neigh->load;	2116	$neigh->load;
1405	}	2117	}
1406	}	2118	}
1407		2119
…		…
1412	}	2124	}
1413		2125
1414	sub do_load_sync {	2126	sub do_load_sync {
1415	my ($map) = @_;	2127	my ($map) = @_;
1416		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1417	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1418	}	2133	}
1419		2134
1420	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1421	our $MAP_PREFETCHER = Coro::async {	2136	our $MAP_PREFETCHER = undef;
1422	while () {
1423	for my $path (keys %MAP_PREFETCH) {
1424	my $map = find $path
1425	or next;
1426	$map->load;
1427
1428	delete $MAP_PREFETCH{$path};
1429	}
1430	Coro::schedule;
1431	}
1432	};
1433		2137
1434	sub find_async {	2138	sub find_async {
1435	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1436		2140
1437	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1438		2142
1439	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1440	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2145	}
		2146
		2147	$MAP_PREFETCH{$path} |= $load;
		2148
		2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
		2152	while (%MAP_PREFETCH) {
		2153	while (my ($k, $v) = each %MAP_PREFETCH) {
		2154	if (my $map = find $k) {
		2155	$map->load if $v;
		2156	}
		2157
		2158	delete $MAP_PREFETCH{$k};
		2159	}
		2160	}
		2161	undef $MAP_PREFETCHER;
1441	}	2162	};
1442
1443	$MAP_PREFETCH{$path} = 0;
1444	$MAP_PREFETCHER->ready;	2163	$MAP_PREFETCHER->prio (6);
1445		2164
1446	()	2165	()
1447	}	2166	}
1448		2167
1449	sub save {	2168	sub save {
1450	my ($self) = @_;	2169	my ($self) = @_;
1451		2170
1452	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1453		2172
1454	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1455		2174
1456	return unless $self->dirty;	2175	return unless $self->dirty;
1457		2176
…		…
1463	return if $self->{deny_save};	2182	return if $self->{deny_save};
1464		2183
1465	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1466		2185
1467	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1468	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1469	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1470		2192
1471	if ($uniq) {	2193	if ($uniq) {
1472	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1473	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1474	} else {	2196	} else {
…		…
1480	my ($self) = @_;	2202	my ($self) = @_;
1481		2203
1482	# save first because save cedes	2204	# save first because save cedes
1483	$self->save;	2205	$self->save;
1484		2206
1485	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1486		2208
1487	return if $self->players;	2209	return if $self->players;
1488	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1489	return if $self->{deny_save};	2211	return if $self->{deny_save};
1490		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1491	$self->clear;	2217	$self->clear;
1492	$self->in_memory (cf::MAP_SWAPPED);
1493	}	2218	}
1494		2219
1495	sub reset_at {	2220	sub reset_at {
1496	my ($self) = @_;	2221	my ($self) = @_;
1497		2222
1498	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1499	return 1e99 if $self->isa ("ext::map_per_player");
1500	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1501		2225
1502	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1503	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1504		2228
…		…
1509	my ($self) = @_;	2233	my ($self) = @_;
1510		2234
1511	$self->reset_at <= $cf::RUNTIME	2235	$self->reset_at <= $cf::RUNTIME
1512	}	2236	}
1513		2237
1514	sub rename {
1515	my ($self, $new_path) = @_;
1516
1517	normalise $new_path;
1518
1519	$self->unlink_save;
1520
1521	delete $cf::MAP{$self->path};
1522	$self->{path} = $new_path; $self->path ($self->{path});
1523	$cf::MAP{$self->path} = $self;
1524
1525	$self->save;
1526	}
1527
1528	sub reset {	2238	sub reset {
1529	my ($self) = @_;	2239	my ($self) = @_;
1530		2240
1531	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1532		2242
1533	return if $self->players;	2243	return if $self->players;
1534	return if $self->isa ("ext::map_per_player");#d#
1535		2244
1536	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
		2246
		2247	$self->in_memory (cf::MAP_SWAPPED);
		2248
		2249	# need to save uniques path
		2250	unless ($self->{deny_save}) {
		2251	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2252
		2253	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2254	if $uniq;
		2255	}
1537		2256
1538	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1539		2258
1540	$self->in_memory (cf::MAP_SWAPPED);	2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1541	$self->clear;	2261	$self->clear;
1542
1543	$_->clear_links_to ($self) for values %cf::MAP;
1544		2262
1545	$self->unlink_save;	2263	$self->unlink_save;
1546	$self->destroy;	2264	$self->destroy;
1547	}	2265	}
1548		2266
1549	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1550		2268
1551	sub nuke {	2269	sub nuke {
1552	my ($self) = @_;	2270	my ($self) = @_;
1553		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
		2275	delete $cf::MAP{$self->path};
		2276
		2277	$self->unlink_save;
		2278
		2279	bless $self, "cf::map";
		2280	delete $self->{deny_reset};
1554	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1555	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1556	$self->rename ("{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2284
		2285	$cf::MAP{$self->path} = $self;
		2286	}
		2287
1557	$self->reset; # polite request, might not happen	2288	$self->reset; # polite request, might not happen
		2289	}
		2290
		2291	=item $maps = cf::map::tmp_maps
		2292
		2293	Returns an arrayref with all map paths of currently instantiated and saved
		2294	maps. May block.
		2295
		2296	=cut
		2297
		2298	sub tmp_maps() {
		2299	[
		2300	map {
		2301	utf8::decode $_;
		2302	/\.map$/
		2303	? normalise $_
		2304	: ()
		2305	} @{ aio_readdir $TMPDIR or [] }
		2306	]
		2307	}
		2308
		2309	=item $maps = cf::map::random_maps
		2310
		2311	Returns an arrayref with all map paths of currently instantiated and saved
		2312	random maps. May block.
		2313
		2314	=cut
		2315
		2316	sub random_maps() {
		2317	[
		2318	map {
		2319	utf8::decode $_;
		2320	/\.map$/
		2321	? normalise "?random/$_"
		2322	: ()
		2323	} @{ aio_readdir $RANDOMDIR or [] }
		2324	]
1558	}	2325	}
1559		2326
1560	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1561		2328
1562	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1563	instantiated unique items. May block.	2330	instantiated unique items. May block.
1564		2331
1565	=cut	2332	=cut
1566		2333
1567	sub unique_maps() {	2334	sub unique_maps() {
1568	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2335	[
1569	or return;	2336	map {
1570
1571	my @paths;
1572
1573	for (@$files) {
1574	utf8::decode $_;	2337	utf8::decode $_;
1575	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1576	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1577		2340	? ()
1578	s/\.map$//;	2341	: normalise $_
1579	push @paths, $_;	2342	} @{ aio_readdir $UNIQUEDIR or [] }
1580	}	2343	]
1581
1582	\@paths
1583	}	2344	}
1584
1585	package cf;
1586		2345
1587	=back	2346	=back
1588		2347
1589	=head3 cf::object	2348	=head3 cf::object
1590		2349
…		…
1594		2353
1595	=over 4	2354	=over 4
1596		2355
1597	=item $ob->inv_recursive	2356	=item $ob->inv_recursive
1598		2357
1599	Returns the inventory of the object _and_ their inventories, recursively.	2358	Returns the inventory of the object I<and> their inventories, recursively,
		2359	but I<not> the object itself.
1600		2360
1601	=cut	2361	=cut
1602		2362
1603	sub inv_recursive_;	2363	sub inv_recursive_;
1604	sub inv_recursive_ {	2364	sub inv_recursive_ {
…		…
1607		2367
1608	sub inv_recursive {	2368	sub inv_recursive {
1609	inv_recursive_ inv $_[0]	2369	inv_recursive_ inv $_[0]
1610	}	2370	}
1611		2371
		2372	=item $ref = $ob->ref
		2373
		2374	Creates and returns a persistent reference to an object that can be stored as a string.
		2375
		2376	=item $ob = cf::object::deref ($refstring)
		2377
		2378	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2379	even if the object actually exists. May block.
		2380
		2381	=cut
		2382
		2383	sub deref {
		2384	my ($ref) = @_;
		2385
		2386	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2387	my ($uuid, $name) = ($1, $2);
		2388	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2389	or return;
		2390	$pl->ob->uuid eq $uuid
		2391	or return;
		2392
		2393	$pl->ob
		2394	} else {
		2395	warn "$ref: cannot resolve object reference\n";
		2396	undef
		2397	}
		2398	}
		2399
1612	package cf;	2400	package cf;
1613		2401
1614	=back	2402	=back
1615		2403
1616	=head3 cf::object::player	2404	=head3 cf::object::player
…		…
1622	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2410	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1623	can be C<undef>. Does the right thing when the player is currently in a	2411	can be C<undef>. Does the right thing when the player is currently in a
1624	dialogue with the given NPC character.	2412	dialogue with the given NPC character.
1625		2413
1626	=cut	2414	=cut
		2415
		2416	our $SAY_CHANNEL = {
		2417	id => "say",
		2418	title => "Map",
		2419	reply => "say ",
		2420	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2421	};
		2422
		2423	our $CHAT_CHANNEL = {
		2424	id => "chat",
		2425	title => "Chat",
		2426	reply => "chat ",
		2427	tooltip => "Player chat and shouts, global to the server.",
		2428	};
1627		2429
1628	# rough implementation of a future "reply" method that works	2430	# rough implementation of a future "reply" method that works
1629	# with dialog boxes.	2431	# with dialog boxes.
1630	#TODO: the first argument must go, split into a $npc->reply_to ( method	2432	#TODO: the first argument must go, split into a $npc->reply_to ( method
1631	sub cf::object::player::reply($$$;$) {	2433	sub cf::object::player::reply($$$;$) {
…		…
1633		2435
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2437
1636	if ($self->{record_replies}) {	2438	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2440
1638	} else {	2441	} else {
		2442	my $pl = $self->contr;
		2443
		2444	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2445	my $dialog = $pl->{npc_dialog};
		2446	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2447
		2448	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2449	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2450	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2451	}
1641	}	2452	}
		2453	}
		2454
		2455	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2456
		2457	=cut
		2458
		2459	sub cf::object::send_msg {
		2460	my $pl = shift->contr
		2461	or return;
		2462	$pl->send_msg (@_);
1642	}	2463	}
1643		2464
1644	=item $player_object->may ("access")	2465	=item $player_object->may ("access")
1645		2466
1646	Returns wether the given player is authorized to access resource "access"	2467	Returns wether the given player is authorized to access resource "access"
…		…
1659		2480
1660	=item $player_object->enter_link	2481	=item $player_object->enter_link
1661		2482
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2483	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2484
1664	The player should be reasonably safe there for short amounts of time. You	2485	The player should be reasonably safe there for short amounts of time (e.g.
1665	I<MUST> call C<leave_link> as soon as possible, though.	2486	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2487	though, as the palyer cannot control the character while it is on the link
		2488	map.
1666		2489
1667	Will never block.	2490	Will never block.
1668		2491
1669	=item $player_object->leave_link ($map, $x, $y)	2492	=item $player_object->leave_link ($map, $x, $y)
1670		2493
…		…
1678	=cut	2501	=cut
1679		2502
1680	sub link_map {	2503	sub link_map {
1681	unless ($LINK_MAP) {	2504	unless ($LINK_MAP) {
1682	$LINK_MAP = cf::map::find "{link}"	2505	$LINK_MAP = cf::map::find "{link}"
1683	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2506	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1684	$LINK_MAP->load;	2507	$LINK_MAP->load;
1685	}	2508	}
1686		2509
1687	$LINK_MAP	2510	$LINK_MAP
1688	}	2511	}
…		…
1693	$self->deactivate_recursive;	2516	$self->deactivate_recursive;
1694		2517
1695	return if UNIVERSAL::isa $self->map, "ext::map_link";	2518	return if UNIVERSAL::isa $self->map, "ext::map_link";
1696		2519
1697	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2520	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1698	if $self->map;	2521	if $self->map && $self->map->{path} ne "{link}";
1699		2522
1700	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2523	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1701	}	2524	}
1702		2525
1703	sub cf::object::player::leave_link {	2526	sub cf::object::player::leave_link {
1704	my ($self, $map, $x, $y) = @_;	2527	my ($self, $map, $x, $y) = @_;
		2528
		2529	return unless $self->contr->active;
1705		2530
1706	my $link_pos = delete $self->{_link_pos};	2531	my $link_pos = delete $self->{_link_pos};
1707		2532
1708	unless ($map) {	2533	unless ($map) {
1709	# restore original map position	2534	# restore original map position
…		…
1723	# use -1 or undef as default coordinates, not 0, 0	2548	# use -1 or undef as default coordinates, not 0, 0
1724	($x, $y) = ($map->enter_x, $map->enter_y)	2549	($x, $y) = ($map->enter_x, $map->enter_y)
1725	if $x <=0 && $y <= 0;	2550	if $x <=0 && $y <= 0;
1726		2551
1727	$map->load;	2552	$map->load;
1728	$map->load_diag;	2553	$map->load_neighbours;
1729		2554
1730	return unless $self->contr->active;	2555	return unless $self->contr->active;
		2556
		2557	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2558	$self->enter_map ($map, $x, $y);
		2559
		2560	# only activate afterwards, to support waiting in hooks
1731	$self->activate_recursive;	2561	$self->activate_recursive;
1732	$self->enter_map ($map, $x, $y);
1733	}	2562	}
1734		2563
1735	cf::player->attach (	2564	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1736	on_logout => sub {
1737	my ($pl) = @_;
1738		2565
1739	# abort map switching before logout	2566	Moves the player to the given map-path and coordinates by first freezing
1740	if ($pl->ob->{_link_pos}) {	2567	her, loading and preparing them map, calling the provided $check callback
1741	cf::sync_job {	2568	that has to return the map if sucecssful, and then unfreezes the player on
1742	$pl->ob->leave_link	2569	the new (success) or old (failed) map position. In either case, $done will
1743	};	2570	be called at the end of this process.
1744	}
1745	},
1746	on_login => sub {
1747	my ($pl) = @_;
1748		2571
1749	# try to abort aborted map switching on player login :)	2572	Note that $check will be called with a potentially non-loaded map, so if
1750	# should happen only on crashes	2573	it needs a loaded map it has to call C<< ->load >>.
1751	if ($pl->ob->{_link_pos}) {
1752	$pl->ob->enter_link;
1753	(async {
1754	# we need this sleep as the login has a concurrent enter_exit running
1755	# and this sleep increases chances of the player not ending up in scorn
1756	$pl->ob->reply (undef,
1757	"There was an internal problem at your last logout, "
1758	. "the server will try to bring you to your intended destination in a second.",
1759	cf::NDI_RED);
1760	Coro::Timer::sleep 1;
1761	$pl->ob->leave_link;
1762	})->prio (2);
1763	}
1764	},
1765	);
1766		2574
1767	=item $player_object->goto ($path, $x, $y)
1768
1769	=cut	2575	=cut
		2576
		2577	our $GOTOGEN;
1770		2578
1771	sub cf::object::player::goto {	2579	sub cf::object::player::goto {
1772	my ($self, $path, $x, $y) = @_;	2580	my ($self, $path, $x, $y, $check, $done) = @_;
		2581
		2582	# do generation counting so two concurrent goto's will be executed in-order
		2583	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1773		2584
1774	$self->enter_link;	2585	$self->enter_link;
1775		2586
1776	(async {	2587	(async {
1777	my $map = cf::map::find $path;	2588	$Coro::current->{desc} = "player::goto $path $x $y";
		2589
		2590	# *tag paths override both path and x|y
		2591	if ($path =~ /^\*(.*)$/) {
		2592	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2593	my $ob = $obs[rand @obs];
		2594
		2595	# see if we actually can go there
		2596	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2597	$ob = $obs[rand @obs];
		2598	} else {
		2599	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2600	}
		2601	# else put us there anyways for now #d#
		2602
		2603	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2604	} else {
		2605	($path, $x, $y) = (undef, undef, undef);
		2606	}
		2607	}
		2608
		2609	my $map = eval {
		2610	my $map = defined $path ? cf::map::find $path : undef;
		2611
		2612	if ($map) {
1778	$map = $map->customise_for ($self) if $map;	2613	$map = $map->customise_for ($self);
1779		2614	$map = $check->($map) if $check && $map;
1780	# warn "entering ", $map->path, " at ($x, $y)\n"	2615	} else {
1781	# if $map;
1782
1783	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2616	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2617	}
1784		2618
		2619	$map
		2620	};
		2621
		2622	if ($@) {
		2623	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2624	LOG llevError | logBacktrace, Carp::longmess $@;
		2625	}
		2626
		2627	if ($gen == $self->{_goto_generation}) {
		2628	delete $self->{_goto_generation};
1785	$self->leave_link ($map, $x, $y);	2629	$self->leave_link ($map, $x, $y);
		2630	}
		2631
		2632	$done->() if $done;
1786	})->prio (1);	2633	})->prio (1);
1787	}	2634	}
1788		2635
1789	=item $player_object->enter_exit ($exit_object)	2636	=item $player_object->enter_exit ($exit_object)
1790		2637
…		…
1792		2639
1793	sub parse_random_map_params {	2640	sub parse_random_map_params {
1794	my ($spec) = @_;	2641	my ($spec) = @_;
1795		2642
1796	my $rmp = { # defaults	2643	my $rmp = { # defaults
1797	xsize => 10,	2644	xsize => (cf::rndm 15, 40),
1798	ysize => 10,	2645	ysize => (cf::rndm 15, 40),
		2646	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2647	#layout => string,
1799	};	2648	};
1800		2649
1801	for (split /\n/, $spec) {	2650	for (split /\n/, $spec) {
1802	my ($k, $v) = split /\s+/, $_, 2;	2651	my ($k, $v) = split /\s+/, $_, 2;
1803		2652
…		…
1815	# that depends on the exit object	2664	# that depends on the exit object
1816		2665
1817	my $rmp = parse_random_map_params $exit->msg;	2666	my $rmp = parse_random_map_params $exit->msg;
1818		2667
1819	if ($exit->map) {	2668	if ($exit->map) {
1820	$rmp->{region} = $exit->map->region_name;	2669	$rmp->{region} = $exit->region->name;
1821	$rmp->{origin_map} = $exit->map->path;	2670	$rmp->{origin_map} = $exit->map->path;
1822	$rmp->{origin_x} = $exit->x;	2671	$rmp->{origin_x} = $exit->x;
1823	$rmp->{origin_y} = $exit->y;	2672	$rmp->{origin_y} = $exit->y;
		2673
		2674	$exit->map->touch;
1824	}	2675	}
1825		2676
1826	$rmp->{random_seed} ||= $exit->random_seed;	2677	$rmp->{random_seed} ||= $exit->random_seed;
1827		2678
1828	my $data = cf::to_json $rmp;	2679	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1829	my $md5 = Digest::MD5::md5_hex $data;	2680	my $md5 = Digest::MD5::md5_hex $data;
		2681	my $meta = "$RANDOMDIR/$md5.meta";
1830		2682
1831	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2683	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1832	aio_write $fh, 0, (length $data), $data, 0;	2684	aio_write $fh, 0, (length $data), $data, 0;
		2685	undef $fh;
		2686	aio_rename "$meta~", $meta;
1833		2687
		2688	my $slaying = "?random/$md5";
		2689
		2690	if ($exit->valid) {
1834	$exit->slaying ("?random/$md5");	2691	$exit->slaying ("?random/$md5");
1835	$exit->msg (undef);	2692	$exit->msg (undef);
		2693	}
1836	}	2694	}
1837	}	2695	}
1838		2696
1839	sub cf::object::player::enter_exit {	2697	sub cf::object::player::enter_exit {
1840	my ($self, $exit) = @_;	2698	my ($self, $exit) = @_;
…		…
1842	return unless $self->type == cf::PLAYER;	2700	return unless $self->type == cf::PLAYER;
1843		2701
1844	$self->enter_link;	2702	$self->enter_link;
1845		2703
1846	(async {	2704	(async {
1847	$self->deactivate_recursive; # just to be sure	2705	$Coro::current->{desc} = "enter_exit";
		2706
1848	unless (eval {	2707	unless (eval {
		2708	$self->deactivate_recursive; # just to be sure
		2709
		2710	# random map handling
		2711	{
		2712	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2713
1849	prepare_random_map $exit	2714	prepare_random_map $exit
1850	if $exit->slaying eq "/!";	2715	if $exit->slaying eq "/!";
		2716	}
1851		2717
1852	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2718	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1853	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2719	my $x = $exit->stats->hp;
		2720	my $y = $exit->stats->sp;
1854		2721
		2722	$self->goto ($map, $x, $y);
		2723
		2724	# if exit is damned, update players death & WoR home-position
		2725	$self->contr->savebed ($map, $x, $y)
		2726	if $exit->flag (cf::FLAG_DAMNED);
		2727
1855	1;	2728	1
1856	}) {	2729	}) {
1857	$self->message ("Something went wrong deep within the crossfire server. "	2730	$self->message ("Something went wrong deep within the deliantra server. "
1858	. "I'll try to bring you back to the map you were before. "	2731	. "I'll try to bring you back to the map you were before. "
1859	. "Please report this to the dungeon master!",	2732	. "Please report this to the dungeon master!",
1860	cf::NDI_UNIQUE | cf::NDI_RED);	2733	cf::NDI_UNIQUE | cf::NDI_RED);
1861		2734
1862	warn "ERROR in enter_exit: $@";	2735	warn "ERROR in enter_exit: $@";
1863	$self->leave_link;	2736	$self->leave_link;
1864	}	2737	}
1865	})->prio (1);	2738	})->prio (1);
…		…
1878		2751
1879	sub cf::client::send_drawinfo {	2752	sub cf::client::send_drawinfo {
1880	my ($self, $text, $flags) = @_;	2753	my ($self, $text, $flags) = @_;
1881		2754
1882	utf8::encode $text;	2755	utf8::encode $text;
1883	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2756	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1884	}	2757	}
1885		2758
		2759	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2760
		2761	Send a drawinfo or msg packet to the client, formatting the msg for the
		2762	client if neccessary. C<$type> should be a string identifying the type of
		2763	the message, with C<log> being the default. If C<$color> is negative, suppress
		2764	the message unless the client supports the msg packet.
		2765
		2766	=cut
		2767
		2768	# non-persistent channels (usually the info channel)
		2769	our %CHANNEL = (
		2770	"c/identify" => {
		2771	id => "infobox",
		2772	title => "Identify",
		2773	reply => undef,
		2774	tooltip => "Items recently identified",
		2775	},
		2776	"c/examine" => {
		2777	id => "infobox",
		2778	title => "Examine",
		2779	reply => undef,
		2780	tooltip => "Signs and other items you examined",
		2781	},
		2782	"c/book" => {
		2783	id => "infobox",
		2784	title => "Book",
		2785	reply => undef,
		2786	tooltip => "The contents of a note or book",
		2787	},
		2788	"c/lookat" => {
		2789	id => "infobox",
		2790	title => "Look",
		2791	reply => undef,
		2792	tooltip => "What you saw there",
		2793	},
		2794	"c/who" => {
		2795	id => "infobox",
		2796	title => "Players",
		2797	reply => undef,
		2798	tooltip => "Shows players who are currently online",
		2799	},
		2800	"c/body" => {
		2801	id => "infobox",
		2802	title => "Body Parts",
		2803	reply => undef,
		2804	tooltip => "Shows which body parts you posess and are available",
		2805	},
		2806	"c/statistics" => {
		2807	id => "infobox",
		2808	title => "Statistics",
		2809	reply => undef,
		2810	tooltip => "Shows your primary statistics",
		2811	},
		2812	"c/skills" => {
		2813	id => "infobox",
		2814	title => "Skills",
		2815	reply => undef,
		2816	tooltip => "Shows your experience per skill and item power",
		2817	},
		2818	"c/shopitems" => {
		2819	id => "infobox",
		2820	title => "Shop Items",
		2821	reply => undef,
		2822	tooltip => "Shows the items currently for sale in this shop",
		2823	},
		2824	"c/resistances" => {
		2825	id => "infobox",
		2826	title => "Resistances",
		2827	reply => undef,
		2828	tooltip => "Shows your resistances",
		2829	},
		2830	"c/pets" => {
		2831	id => "infobox",
		2832	title => "Pets",
		2833	reply => undef,
		2834	tooltip => "Shows information abotu your pets/a specific pet",
		2835	},
		2836	"c/perceiveself" => {
		2837	id => "infobox",
		2838	title => "Perceive Self",
		2839	reply => undef,
		2840	tooltip => "You gained detailed knowledge about yourself",
		2841	},
		2842	"c/uptime" => {
		2843	id => "infobox",
		2844	title => "Uptime",
		2845	reply => undef,
		2846	tooltip => "How long the server has been running since last restart",
		2847	},
		2848	"c/mapinfo" => {
		2849	id => "infobox",
		2850	title => "Map Info",
		2851	reply => undef,
		2852	tooltip => "Information related to the maps",
		2853	},
		2854	"c/party" => {
		2855	id => "party",
		2856	title => "Party",
		2857	reply => "gsay ",
		2858	tooltip => "Messages and chat related to your party",
		2859	},
		2860	"c/death" => {
		2861	id => "death",
		2862	title => "Death",
		2863	reply => undef,
		2864	tooltip => "Reason for and more info about your most recent death",
		2865	},
		2866	"c/say" => $SAY_CHANNEL,
		2867	"c/chat" => $CHAT_CHANNEL,
		2868	);
		2869
		2870	sub cf::client::send_msg {
		2871	my ($self, $channel, $msg, $color, @extra) = @_;
		2872
		2873	$msg = $self->pl->expand_cfpod ($msg)
		2874	unless $color & cf::NDI_VERBATIM;
		2875
		2876	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2877
		2878	# check predefined channels, for the benefit of C
		2879	if ($CHANNEL{$channel}) {
		2880	$channel = $CHANNEL{$channel};
		2881
		2882	$self->ext_msg (channel_info => $channel);
		2883	$channel = $channel->{id};
		2884
		2885	} elsif (ref $channel) {
		2886	# send meta info to client, if not yet sent
		2887	unless (exists $self->{channel}{$channel->{id}}) {
		2888	$self->{channel}{$channel->{id}} = $channel;
		2889	$self->ext_msg (channel_info => $channel);
		2890	}
		2891
		2892	$channel = $channel->{id};
		2893	}
		2894
		2895	return unless @extra || length $msg;
		2896
		2897	# default colour, mask it out
		2898	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2899	if $color & cf::NDI_DEF;
		2900
		2901	my $pkt = "msg "
		2902	. $self->{json_coder}->encode (
		2903	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2904	);
		2905
		2906	# try lzf for large packets
		2907	$pkt = "lzf " . Compress::LZF::compress $pkt
		2908	if 1024 <= length $pkt and $self->{can_lzf};
		2909
		2910	# split very large packets
		2911	if (8192 < length $pkt and $self->{can_lzf}) {
		2912	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2913	$pkt = "frag";
		2914	}
		2915
		2916	$self->send_packet ($pkt);
		2917	}
		2918
		2919	=item $client->ext_msg ($type, @msg)
		2920
		2921	Sends an ext event to the client.
		2922
		2923	=cut
		2924
		2925	sub cf::client::ext_msg($$@) {
		2926	my ($self, $type, @msg) = @_;
		2927
		2928	if ($self->extcmd == 2) {
		2929	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2930	} elsif ($self->extcmd == 1) { # TODO: remove
		2931	push @msg, msgtype => "event_$type";
		2932	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2933	}
		2934	}
		2935
		2936	=item $client->ext_reply ($msgid, @msg)
		2937
		2938	Sends an ext reply to the client.
		2939
		2940	=cut
		2941
		2942	sub cf::client::ext_reply($$@) {
		2943	my ($self, $id, @msg) = @_;
		2944
		2945	if ($self->extcmd == 2) {
		2946	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2947	} elsif ($self->extcmd == 1) {
		2948	#TODO: version 1, remove
		2949	unshift @msg, msgtype => "reply", msgid => $id;
		2950	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2951	}
		2952	}
1886		2953
1887	=item $success = $client->query ($flags, "text", \&cb)	2954	=item $success = $client->query ($flags, "text", \&cb)
1888		2955
1889	Queues a query to the client, calling the given callback with	2956	Queues a query to the client, calling the given callback with
1890	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2957	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1891	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2958	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1892		2959
1893	Queries can fail, so check the return code. Or don't, as queries will become	2960	Queries can fail, so check the return code. Or don't, as queries will
1894	reliable at some point in the future.	2961	become reliable at some point in the future.
1895		2962
1896	=cut	2963	=cut
1897		2964
1898	sub cf::client::query {	2965	sub cf::client::query {
1899	my ($self, $flags, $text, $cb) = @_;	2966	my ($self, $flags, $text, $cb) = @_;
…		…
1907	utf8::encode $text;	2974	utf8::encode $text;
1908	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2975	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1909		2976
1910	$self->send_packet ($self->{query_queue}[0][0])	2977	$self->send_packet ($self->{query_queue}[0][0])
1911	if @{ $self->{query_queue} } == 1;	2978	if @{ $self->{query_queue} } == 1;
		2979
		2980	1
1912	}	2981	}
1913		2982
1914	cf::client->attach (	2983	cf::client->attach (
		2984	on_connect => sub {
		2985	my ($ns) = @_;
		2986
		2987	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2988	},
1915	on_reply => sub {	2989	on_reply => sub {
1916	my ($ns, $msg) = @_;	2990	my ($ns, $msg) = @_;
1917		2991
1918	# this weird shuffling is so that direct followup queries	2992	# this weird shuffling is so that direct followup queries
1919	# get handled first	2993	# get handled first
1920	my $queue = delete $ns->{query_queue}	2994	my $queue = delete $ns->{query_queue}
1921	or return; # be conservative, not sure how that can happen, but we saw a crash here	2995	or return; # be conservative, not sure how that can happen, but we saw a crash here
1922		2996
1923	(shift @$queue)->[1]->($msg);	2997	(shift @$queue)->[1]->($msg);
		2998	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1924		2999
1925	push @{ $ns->{query_queue} }, @$queue;	3000	push @{ $ns->{query_queue} }, @$queue;
1926		3001
1927	if (@{ $ns->{query_queue} } == @$queue) {	3002	if (@{ $ns->{query_queue} } == @$queue) {
1928	if (@$queue) {	3003	if (@$queue) {
…		…
1930	} else {	3005	} else {
1931	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3006	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1932	}	3007	}
1933	}	3008	}
1934	},	3009	},
		3010	on_exticmd => sub {
		3011	my ($ns, $buf) = @_;
		3012
		3013	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3014
		3015	if (ref $msg) {
		3016	my ($type, $reply, @payload) =
		3017	"ARRAY" eq ref $msg
		3018	? @$msg
		3019	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3020
		3021	my @reply;
		3022
		3023	if (my $cb = $EXTICMD{$type}) {
		3024	@reply = $cb->($ns, @payload);
		3025	}
		3026
		3027	$ns->ext_reply ($reply, @reply)
		3028	if $reply;
		3029
		3030	} else {
		3031	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3032	}
		3033
		3034	cf::override;
		3035	},
1935	);	3036	);
1936		3037
1937	=item $client->async (\&cb)	3038	=item $client->async (\&cb)
1938		3039
1939	Create a new coroutine, running the specified callback. The coroutine will	3040	Create a new coroutine, running the specified callback. The coroutine will
…		…
1980	our $safe = new Safe "safe";	3081	our $safe = new Safe "safe";
1981	our $safe_hole = new Safe::Hole;	3082	our $safe_hole = new Safe::Hole;
1982		3083
1983	$SIG{FPE} = 'IGNORE';	3084	$SIG{FPE} = 'IGNORE';
1984		3085
1985	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3086	$safe->permit_only (Opcode::opset qw(
		3087	:base_core :base_mem :base_orig :base_math
		3088	grepstart grepwhile mapstart mapwhile
		3089	sort time
		3090	));
1986		3091
1987	# here we export the classes and methods available to script code	3092	# here we export the classes and methods available to script code
1988		3093
1989	=pod	3094	=pod
1990		3095
1991	The following fucntions and emthods are available within a safe environment:	3096	The following functions and methods are available within a safe environment:
1992		3097
1993	cf::object contr pay_amount pay_player map	3098	cf::object
		3099	contr pay_amount pay_player map x y force_find force_add destroy
		3100	insert remove name archname title slaying race decrease split
		3101	value
		3102
1994	cf::object::player player	3103	cf::object::player
1995	cf::player peaceful	3104	player
1996	cf::map trigger	3105
		3106	cf::player
		3107	peaceful
		3108
		3109	cf::map
		3110	trigger
1997		3111
1998	=cut	3112	=cut
1999		3113
2000	for (	3114	for (
2001	["cf::object" => qw(contr pay_amount pay_player map)],	3115	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3116	insert remove inv nrof name archname title slaying race
		3117	decrease split destroy change_exp value msg lore send_msg)],
2002	["cf::object::player" => qw(player)],	3118	["cf::object::player" => qw(player)],
2003	["cf::player" => qw(peaceful)],	3119	["cf::player" => qw(peaceful send_msg)],
2004	["cf::map" => qw(trigger)],	3120	["cf::map" => qw(trigger)],
2005	) {	3121	) {
2006	no strict 'refs';	3122	no strict 'refs';
2007	my ($pkg, @funs) = @$_;	3123	my ($pkg, @funs) = @$_;
2008	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3124	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2025	my ($code, %vars) = @_;	3141	my ($code, %vars) = @_;
2026		3142
2027	my $qcode = $code;	3143	my $qcode = $code;
2028	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3144	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2029	$qcode =~ s/\n/\\n/g;	3145	$qcode =~ s/\n/\\n/g;
		3146
		3147	%vars = (_dummy => 0) unless %vars;
2030		3148
2031	local $_;	3149	local $_;
2032	local @safe::cf::_safe_eval_args = values %vars;	3150	local @safe::cf::_safe_eval_args = values %vars;
2033		3151
2034	my $eval =	3152	my $eval =
…		…
2077	=back	3195	=back
2078		3196
2079	=cut	3197	=cut
2080		3198
2081	#############################################################################	3199	#############################################################################
		3200	# the server's init and main functions
2082		3201
2083	=head2 EXTENSION DATABASE SUPPORT	3202	sub load_facedata($) {
		3203	my ($path) = @_;
2084		3204
2085	Crossfire maintains a very simple database for extension use. It can	3205	# HACK to clear player env face cache, we need some signal framework
2086	currently store anything that can be serialised using Storable, which	3206	# for this (global event?)
2087	excludes objects.	3207	%ext::player_env::MUSIC_FACE_CACHE = ();
2088		3208
2089	The parameter C<$family> should best start with the name of the extension	3209	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2090	using it, it should be unique.
2091		3210
2092	=over 4	3211	warn "loading facedata from $path\n";
2093		3212
2094	=item $hashref = cf::db_get $family	3213	my $facedata;
		3214	0 < aio_load $path, $facedata
		3215	or die "$path: $!";
2095		3216
2096	Return a hashref for use by the extension C<$family>, which can be	3217	$facedata = Coro::Storable::thaw $facedata;
2097	modified. After modifications, you have to call C<cf::db_dirty> or
2098	C<cf::db_sync>.
2099		3218
2100	=item $value = cf::db_get $family => $key	3219	$facedata->{version} == 2
		3220	or cf::cleanup "$path: version mismatch, cannot proceed.";
2101		3221
2102	Returns a single value from the database	3222	# patch in the exptable
2103		3223	$facedata->{resource}{"res/exp_table"} = {
2104	=item cf::db_put $family => $hashref	3224	type => FT_RSRC,
2105		3225	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2106	Stores the given family hashref into the database. Updates are delayed, if
2107	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2108
2109	=item cf::db_put $family => $key => $value
2110
2111	Stores the given C<$value> in the family hash. Updates are delayed, if you
2112	want the data to be synced to disk immediately, use C<cf::db_sync>.
2113
2114	=item cf::db_dirty
2115
2116	Marks the database as dirty, to be updated at a later time.
2117
2118	=item cf::db_sync
2119
2120	Immediately write the database to disk I<if it is dirty>.
2121
2122	=cut
2123
2124	our $DB;
2125
2126	{
2127	my $path = cf::localdir . "/database.pst";
2128
2129	sub db_load() {
2130	$DB = stat $path ? Storable::retrieve $path : { };
2131	}
2132
2133	my $pid;
2134
2135	sub db_save() {
2136	waitpid $pid, 0 if $pid;
2137	if (0 == ($pid = fork)) {
2138	$DB->{_meta}{version} = 1;
2139	Storable::nstore $DB, "$path~";
2140	rename "$path~", $path;
2141	cf::_exit 0 if defined $pid;
2142	}
2143	}
2144
2145	my $dirty;
2146
2147	sub db_sync() {
2148	db_save if $dirty;
2149	undef $dirty;
2150	}
2151
2152	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2153	db_sync;
2154	});	3226	};
		3227	cf::cede_to_tick;
2155		3228
2156	sub db_dirty() {
2157	$dirty = 1;
2158	$idle->start;
2159	}	3229	{
		3230	my $faces = $facedata->{faceinfo};
2160		3231
2161	sub db_get($;$) {	3232	while (my ($face, $info) = each %$faces) {
2162	@_ >= 2	3233	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2163	? $DB->{$_[0]}{$_[1]}
2164	: ($DB->{$_[0]} ||= { })
2165	}
2166		3234
2167	sub db_put($$;$) {	3235	cf::face::set_visibility $idx, $info->{visibility};
2168	if (@_ >= 3) {	3236	cf::face::set_magicmap $idx, $info->{magicmap};
2169	$DB->{$_[0]}{$_[1]} = $_[2];	3237	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2170	} else {	3238	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2171	$DB->{$_[0]} = $_[1];
2172	}
2173	db_dirty;
2174	}
2175		3239
2176	cf::global->attach (	3240	cf::cede_to_tick;
2177	prio => 10000,
2178	on_cleanup => sub {
2179	db_sync;
2180	},	3241	}
2181	);
2182	}
2183		3242
2184	#############################################################################	3243	while (my ($face, $info) = each %$faces) {
2185	# the server's main()	3244	next unless $info->{smooth};
2186		3245
2187	sub cfg_load {	3246	my $idx = cf::face::find $face
		3247	or next;
		3248
		3249	if (my $smooth = cf::face::find $info->{smooth}) {
		3250	cf::face::set_smooth $idx, $smooth;
		3251	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3252	} else {
		3253	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3254	}
		3255
		3256	cf::cede_to_tick;
		3257	}
		3258	}
		3259
		3260	{
		3261	my $anims = $facedata->{animinfo};
		3262
		3263	while (my ($anim, $info) = each %$anims) {
		3264	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3265	cf::cede_to_tick;
		3266	}
		3267
		3268	cf::anim::invalidate_all; # d'oh
		3269	}
		3270
		3271	{
		3272	# TODO: for gcfclient pleasure, we should give resources
		3273	# that gcfclient doesn't grok a >10000 face index.
		3274	my $res = $facedata->{resource};
		3275
		3276	while (my ($name, $info) = each %$res) {
		3277	if (defined $info->{type}) {
		3278	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3279	my $data;
		3280
		3281	if ($info->{type} & 1) {
		3282	# prepend meta info
		3283
		3284	my $meta = $enc->encode ({
		3285	name => $name,
		3286	%{ $info->{meta} || {} },
		3287	});
		3288
		3289	$data = pack "(w/a*)*", $meta, $info->{data};
		3290	} else {
		3291	$data = $info->{data};
		3292	}
		3293
		3294	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3295	cf::face::set_type $idx, $info->{type};
		3296	} else {
		3297	$RESOURCE{$name} = $info;
		3298	}
		3299
		3300	cf::cede_to_tick;
		3301	}
		3302	}
		3303
		3304	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3305
		3306	1
		3307	}
		3308
		3309	cf::global->attach (on_resource_update => sub {
		3310	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3311	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3312
		3313	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3314	my $sound = $soundconf->{compat}[$_]
		3315	or next;
		3316
		3317	my $face = cf::face::find "sound/$sound->[1]";
		3318	cf::sound::set $sound->[0] => $face;
		3319	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3320	}
		3321
		3322	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3323	my $face = cf::face::find "sound/$v";
		3324	cf::sound::set $k => $face;
		3325	}
		3326	}
		3327	});
		3328
		3329	register_exticmd fx_want => sub {
		3330	my ($ns, $want) = @_;
		3331
		3332	while (my ($k, $v) = each %$want) {
		3333	$ns->fx_want ($k, $v);
		3334	}
		3335	};
		3336
		3337	sub load_resource_file($) {
		3338	my $guard = lock_acquire "load_resource_file";
		3339
		3340	my $status = load_resource_file_ $_[0];
		3341	get_slot 0.1, 100;
		3342	cf::arch::commit_load;
		3343
		3344	$status
		3345	}
		3346
		3347	sub reload_regions {
		3348	# HACK to clear player env face cache, we need some signal framework
		3349	# for this (global event?)
		3350	%ext::player_env::MUSIC_FACE_CACHE = ();
		3351
		3352	load_resource_file "$MAPDIR/regions"
		3353	or die "unable to load regions file\n";
		3354
		3355	for (cf::region::list) {
		3356	$_->{match} = qr/$_->{match}/
		3357	if exists $_->{match};
		3358	}
		3359	}
		3360
		3361	sub reload_facedata {
		3362	load_facedata "$DATADIR/facedata"
		3363	or die "unable to load facedata\n";
		3364	}
		3365
		3366	sub reload_archetypes {
		3367	load_resource_file "$DATADIR/archetypes"
		3368	or die "unable to load archetypes\n";
		3369	}
		3370
		3371	sub reload_treasures {
		3372	load_resource_file "$DATADIR/treasures"
		3373	or die "unable to load treasurelists\n";
		3374	}
		3375
		3376	sub reload_resources {
		3377	warn "reloading resource files...\n";
		3378
		3379	reload_facedata;
		3380	reload_archetypes;
		3381	reload_regions;
		3382	reload_treasures;
		3383
		3384	warn "finished reloading resource files\n";
		3385	}
		3386
		3387	sub reload_config {
		3388	warn "reloading config file...\n";
		3389
2188	open my $fh, "<:utf8", cf::confdir . "/config"	3390	open my $fh, "<:utf8", "$CONFDIR/config"
2189	or return;	3391	or return;
2190		3392
2191	local $/;	3393	local $/;
2192	*CFG = YAML::Syck::Load <$fh>;	3394	*CFG = YAML::XS::Load scalar <$fh>;
2193		3395
2194	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3396	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2195		3397
2196	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3398	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2197	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3399	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2201	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3403	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2202	and die "WARNING: m(un)lockall failed: $!\n";	3404	and die "WARNING: m(un)lockall failed: $!\n";
2203	};	3405	};
2204	warn $@ if $@;	3406	warn $@ if $@;
2205	}	3407	}
		3408
		3409	warn "finished reloading resource files\n";
		3410	}
		3411
		3412	sub pidfile() {
		3413	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3414	or die "$PIDFILE: $!";
		3415	flock $fh, &Fcntl::LOCK_EX
		3416	or die "$PIDFILE: flock: $!";
		3417	$fh
		3418	}
		3419
		3420	# make sure only one server instance is running at any one time
		3421	sub atomic {
		3422	my $fh = pidfile;
		3423
		3424	my $pid = <$fh>;
		3425	kill 9, $pid if $pid > 0;
		3426
		3427	seek $fh, 0, 0;
		3428	print $fh $$;
		3429	}
		3430
		3431	sub main_loop {
		3432	warn "EV::loop starting\n";
		3433	if (1) {
		3434	EV::loop;
		3435	}
		3436	warn "EV::loop returned\n";
		3437	goto &main_loop unless $REALLY_UNLOOP;
2206	}	3438	}
2207		3439
2208	sub main {	3440	sub main {
		3441	cf::init_globals; # initialise logging
		3442
		3443	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3444	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3445	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3446	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3447
		3448	cf::init_experience;
		3449	cf::init_anim;
		3450	cf::init_attackmess;
		3451	cf::init_dynamic;
		3452
		3453	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3454
2209	# we must not ever block the main coroutine	3455	# we must not ever block the main coroutine
2210	local $Coro::idle = sub {	3456	local $Coro::idle = sub {
2211	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3457	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2212	async { Event::one_event };	3458	(async {
		3459	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3460	EV::loop EV::LOOP_ONESHOT;
		3461	})->prio (Coro::PRIO_MAX);
2213	};	3462	};
2214		3463
2215	cfg_load;	3464	evthread_start IO::AIO::poll_fileno;
2216	db_load;	3465
		3466	cf::sync_job {
		3467	reload_resources;
		3468	reload_config;
		3469	db_init;
		3470
		3471	cf::load_settings;
		3472	cf::load_materials;
		3473	cf::init_uuid;
		3474	cf::init_signals;
		3475	cf::init_commands;
		3476	cf::init_skills;
		3477
		3478	cf::init_beforeplay;
		3479
		3480	atomic;
		3481
2217	load_extensions;	3482	load_extensions;
2218	Event::loop;	3483
		3484	utime time, time, $RUNTIMEFILE;
		3485
		3486	# no (long-running) fork's whatsoever before this point(!)
		3487	use POSIX ();
		3488	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3489
		3490	(pop @POST_INIT)->(0) while @POST_INIT;
		3491	};
		3492
		3493	main_loop;
2219	}	3494	}
2220		3495
2221	#############################################################################	3496	#############################################################################
2222	# initialisation and cleanup	3497	# initialisation and cleanup
2223		3498
2224	# install some emergency cleanup handlers	3499	# install some emergency cleanup handlers
2225	BEGIN {	3500	BEGIN {
		3501	our %SIGWATCHER = ();
2226	for my $signal (qw(INT HUP TERM)) {	3502	for my $signal (qw(INT HUP TERM)) {
2227	Event->signal (	3503	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2228	data => WF_AUTOCANCEL,
2229	signal => $signal,
2230	cb => sub {
2231	cf::cleanup "SIG$signal";	3504	cf::cleanup "SIG$signal";
2232	},
2233	);	3505	};
		3506	}
		3507	}
		3508
		3509	sub write_runtime_sync {
		3510	# first touch the runtime file to show we are still running:
		3511	# the fsync below can take a very very long time.
		3512
		3513	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3514
		3515	my $guard = cf::lock_acquire "write_runtime";
		3516
		3517	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3518	or return;
		3519
		3520	my $value = $cf::RUNTIME + 90 + 10;
		3521	# 10 is the runtime save interval, for a monotonic clock
		3522	# 60 allows for the watchdog to kill the server.
		3523
		3524	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3525	and return;
		3526
		3527	# always fsync - this file is important
		3528	aio_fsync $fh
		3529	and return;
		3530
		3531	# touch it again to show we are up-to-date
		3532	aio_utime $fh, undef, undef;
		3533
		3534	close $fh
		3535	or return;
		3536
		3537	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3538	and return;
		3539
		3540	warn "runtime file written.\n";
		3541
2234	}	3542	1
		3543	}
		3544
		3545	our $uuid_lock;
		3546	our $uuid_skip;
		3547
		3548	sub write_uuid_sync($) {
		3549	$uuid_skip ||= $_[0];
		3550
		3551	return if $uuid_lock;
		3552	local $uuid_lock = 1;
		3553
		3554	my $uuid = "$LOCALDIR/uuid";
		3555
		3556	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3557	or return;
		3558
		3559	my $value = uuid_seq uuid_cur;
		3560
		3561	unless ($value) {
		3562	warn "cowardly refusing to write zero uuid value!\n";
		3563	return;
		3564	}
		3565
		3566	my $value = uuid_str $value + $uuid_skip;
		3567	$uuid_skip = 0;
		3568
		3569	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3570	and return;
		3571
		3572	# always fsync - this file is important
		3573	aio_fsync $fh
		3574	and return;
		3575
		3576	close $fh
		3577	or return;
		3578
		3579	aio_rename "$uuid~", $uuid
		3580	and return;
		3581
		3582	warn "uuid file written ($value).\n";
		3583
		3584	1
		3585
		3586	}
		3587
		3588	sub write_uuid($$) {
		3589	my ($skip, $sync) = @_;
		3590
		3591	$sync ? write_uuid_sync $skip
		3592	: async { write_uuid_sync $skip };
2235	}	3593	}
2236		3594
2237	sub emergency_save() {	3595	sub emergency_save() {
2238	my $freeze_guard = cf::freeze_mainloop;	3596	my $freeze_guard = cf::freeze_mainloop;
2239		3597
2240	warn "enter emergency perl save\n";	3598	warn "emergency_perl_save: enter\n";
2241		3599
2242	cf::sync_job {	3600	cf::sync_job {
		3601	# this is a trade-off: we want to be very quick here, so
		3602	# save all maps without fsync, and later call a global sync
		3603	# (which in turn might be very very slow)
		3604	local $USE_FSYNC = 0;
		3605
2243	# use a peculiar iteration method to avoid tripping on perl	3606	# use a peculiar iteration method to avoid tripping on perl
2244	# refcount bugs in for. also avoids problems with players	3607	# refcount bugs in for. also avoids problems with players
2245	# and maps saved/destroyed asynchronously.	3608	# and maps saved/destroyed asynchronously.
2246	warn "begin emergency player save\n";	3609	warn "emergency_perl_save: begin player save\n";
2247	for my $login (keys %cf::PLAYER) {	3610	for my $login (keys %cf::PLAYER) {
2248	my $pl = $cf::PLAYER{$login} or next;	3611	my $pl = $cf::PLAYER{$login} or next;
2249	$pl->valid or next;	3612	$pl->valid or next;
		3613	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2250	$pl->save;	3614	$pl->save;
2251	}	3615	}
2252	warn "end emergency player save\n";	3616	warn "emergency_perl_save: end player save\n";
2253		3617
2254	warn "begin emergency map save\n";	3618	warn "emergency_perl_save: begin map save\n";
2255	for my $path (keys %cf::MAP) {	3619	for my $path (keys %cf::MAP) {
2256	my $map = $cf::MAP{$path} or next;	3620	my $map = $cf::MAP{$path} or next;
2257	$map->valid or next;	3621	$map->valid or next;
2258	$map->save;	3622	$map->save;
2259	}	3623	}
2260	warn "end emergency map save\n";	3624	warn "emergency_perl_save: end map save\n";
		3625
		3626	warn "emergency_perl_save: begin database checkpoint\n";
		3627	BDB::db_env_txn_checkpoint $DB_ENV;
		3628	warn "emergency_perl_save: end database checkpoint\n";
		3629
		3630	warn "emergency_perl_save: begin write uuid\n";
		3631	write_uuid_sync 1;
		3632	warn "emergency_perl_save: end write uuid\n";
2261	};	3633	};
2262		3634
		3635	warn "emergency_perl_save: starting sync()\n";
		3636	IO::AIO::aio_sync sub {
		3637	warn "emergency_perl_save: finished sync()\n";
		3638	};
		3639
2263	warn "leave emergency perl save\n";	3640	warn "emergency_perl_save: leave\n";
2264	}	3641	}
2265		3642
		3643	sub post_cleanup {
		3644	my ($make_core) = @_;
		3645
		3646	warn Carp::longmess "post_cleanup backtrace"
		3647	if $make_core;
		3648
		3649	my $fh = pidfile;
		3650	unlink $PIDFILE if <$fh> == $$;
		3651	}
		3652
		3653	# a safer delete_package, copied from Symbol
		3654	sub clear_package($) {
		3655	my $pkg = shift;
		3656
		3657	# expand to full symbol table name if needed
		3658	unless ($pkg =~ /^main::.*::$/) {
		3659	$pkg = "main$pkg" if $pkg =~ /^::/;
		3660	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3661	$pkg .= '::' unless $pkg =~ /::$/;
		3662	}
		3663
		3664	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3665	my $stem_symtab = *{$stem}{HASH};
		3666
		3667	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3668	or return;
		3669
		3670	# clear all symbols
		3671	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3672	for my $name (keys %$leaf_symtab) {
		3673	_gv_clear *{"$pkg$name"};
		3674	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3675	}
		3676	warn "cleared package $pkg\n";#d#
		3677	}
		3678
2266	sub reload() {	3679	sub do_reload_perl() {
2267	# can/must only be called in main	3680	# can/must only be called in main
2268	if ($Coro::current != $Coro::main) {	3681	if ($Coro::current != $Coro::main) {
2269	warn "can only reload from main coroutine\n";	3682	warn "can only reload from main coroutine";
2270	return;	3683	return;
2271	}	3684	}
2272		3685
		3686	return if $RELOAD++;
		3687
		3688	my $t1 = EV::time;
		3689
		3690	while ($RELOAD) {
2273	warn "reloading...";	3691	warn "reloading...";
2274		3692
2275	warn "freezing server";	3693	warn "entering sync_job";
2276	my $guard = freeze_mainloop;	3694
		3695	cf::sync_job {
		3696	cf::write_runtime_sync; # external watchdog should not bark
2277	cf::emergency_save;	3697	cf::emergency_save;
		3698	cf::write_runtime_sync; # external watchdog should not bark
2278		3699
2279	warn "sync database to disk";	3700	warn "syncing database to disk";
2280	cf::db_sync;	3701	BDB::db_env_txn_checkpoint $DB_ENV;
2281	IO::AIO::flush;
2282		3702
2283	eval {
2284	# if anything goes wrong in here, we should simply crash as we already saved	3703	# if anything goes wrong in here, we should simply crash as we already saved
2285		3704
2286	warn "cancel all watchers";	3705	warn "flushing outstanding aio requests";
2287	for (Event::all_watchers) {	3706	while (IO::AIO::nreqs || BDB::nreqs) {
2288	$_->cancel if $_->data & WF_AUTOCANCEL;	3707	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2289	}
2290
2291	warn "cancel all extension coros";
2292	$_->cancel for values %EXT_CORO;
2293	%EXT_CORO = ();
2294
2295	warn "remove commands";
2296	%COMMAND = ();
2297
2298	warn "remove ext commands";
2299	%EXTCMD = ();
2300
2301	warn "unload/nuke all extensions";
2302	for my $pkg (@EXTS) {
2303	warn "... unloading $pkg";
2304
2305	if (my $cb = $pkg->can ("unload")) {
2306	eval {
2307	$cb->($pkg);
2308	1
2309	} or warn "$pkg unloaded, but with errors: $@";
2310	}	3708	}
2311		3709
		3710	warn "cancelling all extension coros";
		3711	$_->cancel for values %EXT_CORO;
		3712	%EXT_CORO = ();
		3713
		3714	warn "removing commands";
		3715	%COMMAND = ();
		3716
		3717	warn "removing ext/exti commands";
		3718	%EXTCMD = ();
		3719	%EXTICMD = ();
		3720
		3721	warn "unloading/nuking all extensions";
		3722	for my $pkg (@EXTS) {
2312	warn "... nuking $pkg";	3723	warn "... unloading $pkg";
2313	Symbol::delete_package $pkg;
2314	}
2315		3724
2316	warn "unload all perl modules loaded from $LIBDIR";
2317	while (my ($k, $v) = each %INC) {
2318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2319
2320	warn "removing <$k>";
2321	delete $INC{$k};
2322
2323	$k =~ s/\.pm$//;
2324	$k =~ s/\//::/g;
2325
2326	if (my $cb = $k->can ("unload_module")) {	3725	if (my $cb = $pkg->can ("unload")) {
		3726	eval {
2327	$cb->();	3727	$cb->($pkg);
		3728	1
		3729	} or warn "$pkg unloaded, but with errors: $@";
		3730	}
		3731
		3732	warn "... clearing $pkg";
		3733	clear_package $pkg;
2328	}	3734	}
2329		3735
2330	Symbol::delete_package $k;	3736	warn "unloading all perl modules loaded from $LIBDIR";
		3737	while (my ($k, $v) = each %INC) {
		3738	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3739
		3740	warn "... unloading $k";
		3741	delete $INC{$k};
		3742
		3743	$k =~ s/\.pm$//;
		3744	$k =~ s/\//::/g;
		3745
		3746	if (my $cb = $k->can ("unload_module")) {
		3747	$cb->();
		3748	}
		3749
		3750	clear_package $k;
2331	}	3751	}
2332		3752
2333	warn "get rid of safe::, as good as possible";	3753	warn "getting rid of safe::, as good as possible";
2334	Symbol::delete_package "safe::$_"	3754	clear_package "safe::$_"
2335	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3755	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2336		3756
2337	warn "unload cf.pm \"a bit\"";	3757	warn "unloading cf.pm \"a bit\"";
2338	delete $INC{"cf.pm"};	3758	delete $INC{"cf.pm"};
		3759	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2339		3760
2340	# don't, removes xs symbols, too,	3761	# don't, removes xs symbols, too,
2341	# and global variables created in xs	3762	# and global variables created in xs
2342	#Symbol::delete_package __PACKAGE__;	3763	#clear_package __PACKAGE__;
2343		3764
		3765	warn "unload completed, starting to reload now";
		3766
2344	warn "reloading cf.pm";	3767	warn "reloading cf.pm";
2345	require cf;	3768	require cf;
2346	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3769	cf::_connect_to_perl_1;
2347		3770
2348	warn "load config and database again";	3771	warn "loading config and database again";
2349	cf::cfg_load;	3772	cf::reload_config;
2350	cf::db_load;
2351		3773
2352	warn "load extensions";	3774	warn "loading extensions";
2353	cf::load_extensions;	3775	cf::load_extensions;
2354		3776
		3777	if ($REATTACH_ON_RELOAD) {
2355	warn "reattach attachments to objects/players";	3778	warn "reattaching attachments to objects/players";
2356	_global_reattach;	3779	_global_reattach; # objects, sockets
2357	warn "reattach attachments to maps";	3780	warn "reattaching attachments to maps";
2358	reattach $_ for values %MAP;	3781	reattach $_ for values %MAP;
		3782	warn "reattaching attachments to players";
		3783	reattach $_ for values %PLAYER;
		3784	}
		3785
		3786	warn "running post_init jobs";
		3787	(pop @POST_INIT)->(1) while @POST_INIT;
		3788
		3789	warn "leaving sync_job";
		3790
		3791	1
		3792	} or do {
		3793	warn $@;
		3794	cf::cleanup "error while reloading, exiting.";
		3795	};
		3796
		3797	warn "reloaded";
		3798	--$RELOAD;
		3799	}
		3800
		3801	$t1 = EV::time - $t1;
		3802	warn "reload completed in ${t1}s\n";
		3803	};
		3804
		3805	our $RELOAD_WATCHER; # used only during reload
		3806
		3807	sub reload_perl() {
		3808	# doing reload synchronously and two reloads happen back-to-back,
		3809	# coro crashes during coro_state_free->destroy here.
		3810
		3811	$RELOAD_WATCHER ||= cf::async {
		3812	Coro::AIO::aio_wait cache_extensions;
		3813
		3814	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3815	do_reload_perl;
		3816	undef $RELOAD_WATCHER;
		3817	};
2359	};	3818	};
2360		3819	}
2361	if ($@) {
2362	warn $@;
2363	warn "error while reloading, exiting.";
2364	exit 1;
2365	}
2366
2367	warn "reloaded";
2368	};
2369		3820
2370	register_command "reload" => sub {	3821	register_command "reload" => sub {
2371	my ($who, $arg) = @_;	3822	my ($who, $arg) = @_;
2372		3823
2373	if ($who->flag (FLAG_WIZ)) {	3824	if ($who->flag (FLAG_WIZ)) {
2374	$who->message ("start of reload.");
2375	reload;
2376	$who->message ("end of reload.");	3825	$who->message ("reloading server.");
		3826	async {
		3827	$Coro::current->{desc} = "perl_reload";
		3828	reload_perl;
		3829	};
2377	}	3830	}
2378	};	3831	};
2379		3832
2380	unshift @INC, $LIBDIR;	3833	unshift @INC, $LIBDIR;
2381		3834
2382	$TICK_WATCHER = Event->timer (	3835	my $bug_warning = 0;
2383	reentrant => 0,
2384	prio => 0,
2385	at => $NEXT_TICK || $TICK,
2386	data => WF_AUTOCANCEL,
2387	cb => sub {
2388	$NOW = Event::time;
2389		3836
		3837	our @WAIT_FOR_TICK;
		3838	our @WAIT_FOR_TICK_BEGIN;
		3839
		3840	sub wait_for_tick {
		3841	return if tick_inhibit || $Coro::current == $Coro::main;
		3842
		3843	my $signal = new Coro::Signal;
		3844	push @WAIT_FOR_TICK, $signal;
		3845	$signal->wait;
		3846	}
		3847
		3848	sub wait_for_tick_begin {
		3849	return if tick_inhibit || $Coro::current == $Coro::main;
		3850
		3851	my $signal = new Coro::Signal;
		3852	push @WAIT_FOR_TICK_BEGIN, $signal;
		3853	$signal->wait;
		3854	}
		3855
		3856	sub tick {
		3857	if ($Coro::current != $Coro::main) {
		3858	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3859	unless ++$bug_warning > 10;
		3860	return;
		3861	}
		3862
2390	cf::server_tick; # one server iteration	3863	cf::server_tick; # one server iteration
2391	$RUNTIME += $TICK;
2392	$NEXT_TICK += $TICK;
2393		3864
2394	$WAIT_FOR_TICK->broadcast;	3865	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2395	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3866	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2396		3867	Coro::async_pool {
2397	# if we are delayed by four ticks or more, skip them all	3868	$Coro::current->{desc} = "runtime saver";
2398	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2399
2400	$TICK_WATCHER->at ($NEXT_TICK);
2401	$TICK_WATCHER->start;
2402	},
2403	);
2404
2405	IO::AIO::max_poll_time $TICK * 0.2;
2406
2407	Event->io (
2408	fd => IO::AIO::poll_fileno,
2409	poll => 'r',
2410	prio => 5,
2411	data => WF_AUTOCANCEL,
2412	cb => \&IO::AIO::poll_cb,
2413	);
2414
2415	Event->timer (
2416	data => WF_AUTOCANCEL,
2417	after => 0,
2418	interval => 10,
2419	cb => sub {
2420	(Coro::unblock_sub {
2421	write_runtime	3869	write_runtime_sync
2422	or warn "ERROR: unable to write runtime file: $!";	3870	or warn "ERROR: unable to write runtime file: $!";
2423	})->();	3871	};
2424	},	3872	}
2425	);	3873
		3874	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3875	$sig->send;
		3876	}
		3877	while (my $sig = shift @WAIT_FOR_TICK) {
		3878	$sig->send;
		3879	}
		3880
		3881	$LOAD = ($NOW - $TICK_START) / $TICK;
		3882	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3883
		3884	if (0) {
		3885	if ($NEXT_TICK) {
		3886	my $jitter = $TICK_START - $NEXT_TICK;
		3887	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3888	warn "jitter $JITTER\n";#d#
		3889	}
		3890	}
		3891	}
		3892
		3893	{
		3894	# configure BDB
		3895
		3896	BDB::min_parallel 8;
		3897	BDB::max_poll_reqs $TICK * 0.1;
		3898	$AnyEvent::BDB::WATCHER->priority (1);
		3899
		3900	unless ($DB_ENV) {
		3901	$DB_ENV = BDB::db_env_create;
		3902	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3903	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3904	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3905	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3906	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3907
		3908	cf::sync_job {
		3909	eval {
		3910	BDB::db_env_open
		3911	$DB_ENV,
		3912	$BDBDIR,
		3913	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3914	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3915	0666;
		3916
		3917	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3918	};
		3919
		3920	cf::cleanup "db_env_open(db): $@" if $@;
		3921	};
		3922	}
		3923
		3924	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3925	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3926	};
		3927	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3928	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3929	};
		3930	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3931	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3932	};
		3933	}
		3934
		3935	{
		3936	# configure IO::AIO
		3937
		3938	IO::AIO::min_parallel 8;
		3939	IO::AIO::max_poll_time $TICK * 0.1;
		3940	undef $AnyEvent::AIO::WATCHER;
		3941	}
		3942
		3943	my $_log_backtrace;
		3944
		3945	sub _log_backtrace {
		3946	my ($msg, @addr) = @_;
		3947
		3948	$msg =~ s/\n//;
		3949
		3950	# limit the # of concurrent backtraces
		3951	if ($_log_backtrace < 2) {
		3952	++$_log_backtrace;
		3953	my $perl_bt = Carp::longmess $msg;
		3954	async {
		3955	$Coro::current->{desc} = "abt $msg";
		3956
		3957	my @bt = fork_call {
		3958	@addr = map { sprintf "%x", $_ } @addr;
		3959	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3960	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3961	or die "addr2line: $!";
		3962
		3963	my @funcs;
		3964	my @res = <$fh>;
		3965	chomp for @res;
		3966	while (@res) {
		3967	my ($func, $line) = splice @res, 0, 2, ();
		3968	push @funcs, "[$func] $line";
		3969	}
		3970
		3971	@funcs
		3972	};
		3973
		3974	LOG llevInfo, "[ABT] $perl_bt\n";
		3975	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3976	LOG llevInfo, "[ABT] $_\n" for @bt;
		3977	--$_log_backtrace;
		3978	};
		3979	} else {
		3980	LOG llevInfo, "[ABT] $msg\n";
		3981	LOG llevInfo, "[ABT] [suppressed]\n";
		3982	}
		3983	}
		3984
		3985	# load additional modules
		3986	require "cf/$_.pm" for @EXTRA_MODULES;
		3987	cf::_connect_to_perl_2;
2426		3988
2427	END { cf::emergency_save }	3989	END { cf::emergency_save }
2428		3990
2429	1	3991	1
2430		3992

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