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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.193 by root, Wed Jan 24 16:29:10 2007 UTC vs.
Revision 1.486 by root, Thu Oct 15 21:56:50 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
12		37
		38	use Guard ();
13	use Coro 3.5 ();	39	use Coro ();
		40	use Coro::State;
		41	use Coro::Handle;
		42	use Coro::EV;
14	use Coro::Event;	43	use Coro::AnyEvent;
15	use Coro::Timer;	44	use Coro::Timer;
16	use Coro::Signal;	45	use Coro::Signal;
17	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
18	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
		51	use Coro::Storable;
		52	use Coro::Util ();
19		53
		54	use JSON::XS 2.01 ();
		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;
49	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	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
51	our $NEXT_TICK;	115	our $NEXT_TICK;
52	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);
53		124
54	our %CFG;	125	our %CFG;
55		126
56	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
58		130
59	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		134
67	# 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 ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		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 $REALLY_UNLOOP; # never set to true, please :)
		147
70	binmode STDOUT;	148	binmode STDOUT;
71	binmode STDERR;	149	binmode STDERR;
72		150
73	# read virtual server time, if available	151	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
78	}	156	}
79		157
80	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	159
82	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		162
86	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::"} };
87		177
88	#############################################################################	178	#############################################################################
89		179
90	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
91		181
…		…
98	=item $cf::RUNTIME	188	=item $cf::RUNTIME
99		189
100	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
101	every server tick.	191	every server tick.
102		192
103	=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
104		196
105	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
106	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.
107		201
108	=item $cf::NOW	202	=item $cf::NOW
109		203
110	The time of the last (current) server tick.	204	The time of the last (current) server tick.
111		205
112	=item $cf::TICK	206	=item $cf::TICK
113		207
114	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
115		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
116	=item %cf::CFG	220	=item %cf::CFG
117		221
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	223	from wherever your confdir points to.
120		224
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		226
123	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
124	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
125	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.
126	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.
127		242
128	=back	243	=back
129		244
130	=cut	245	=cut
131		246
132	BEGIN {	247	$Coro::State::WARNHOOK = sub {
133	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	248	my $msg = join "", @_;
135	utf8::encode $msg;
136		249
137	$msg .= "\n"	250	$msg .= "\n"
138	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
139		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
140	LOG llevError, $msg;	255	LOG llevError, $msg;
141	};	256	};
142	}	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	};
143		271
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@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';
149	@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)
150		279
151	# 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
152	# within the Safe compartment.	281	# within the Safe compartment.
153	for my $pkg (qw(	282	for my $pkg (qw(
154	cf::global cf::attachable	283	cf::global cf::attachable
155	cf::object cf::object::player	284	cf::object cf::object::player
156	cf::client cf::player	285	cf::client cf::player
157	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
158	cf::map cf::party cf::region	288	cf::party cf::region
159	)) {	289	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	291	}
163		292
164	$Event::DIED = sub {	293	$EV::DIED = sub {
165	warn "error in event callback: @_";	294	warn "error in event callback: @_";
166	};	295	};
		296
		297	#############################################################################
167		298
168	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
169		300
170	=over 4	301	=over 4
171		302
…		…
190	$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;
191	$d	322	$d
192	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
193	}	324	}
194		325
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
198		327
199	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
200		329
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
209		331
210	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
211		333
212	=cut	334	=cut
213		335
214	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	337
216	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;
217	}	353	}
218		354
219	=item cf::lock_wait $string	355	=item cf::lock_wait $string
220		356
221	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
222		358
223	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
224		360
225	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
226	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,
227	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
228	returned.	364	returned.
229		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
230	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
231	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
232		371
233	=cut	372	=item $locked = cf::lock_active $string
234		373
235	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
236		379
237	sub lock_wait($) {	380	sub lock_wait($) {
238	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
239
240	# wait for lock, if any
241	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;
244	}
245	}	382	}
246		383
247	sub lock_acquire($) {	384	sub lock_acquire($) {
248	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
249		387
250	# wait, to be sure we are not locked	388	sub lock_active($) {
251	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
252
253	$LOCK{$key} = [];
254
255	Coro::guard {
256	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };
258	}
259	}	390	}
260		391
261	sub freeze_mainloop {	392	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
263		394
264	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
265	$TICK_WATCHER->start;	396	}
266	$WRITE_RUNTIME_WATCHER->start;	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($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
267	};	456	}
268	$WRITE_RUNTIME_WATCHER->stop;	457	};
269	$TICK_WATCHER->stop;	458
270	$guard	459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
271	}	471	}
272		472
273	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
274		474
275	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		480
281	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
282		482
283	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
284		484
285	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
288		489
289	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
292	fast or be very important.	493	fast or be very important.
…		…
295		496
296	sub sync_job(&) {	497	sub sync_job(&) {
297	my ($job) = @_;	498	my ($job) = @_;
298		499
299	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
300	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
302		505
303	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	507
305	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
306		509
307	my $busy = 1;	510	my $busy = 1;
308	my @res;	511	my @res;
309		512
310	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	515	@res = eval { $job->() };
312	warn $@ if $@;	516	warn $@ if $@;
313	undef $busy;	517	undef $busy;
314	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
315		519
316	while ($busy) {	520	while ($busy) {
317	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
318	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
319		531
320	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
321	} else {	533	} else {
322	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
323		535
…		…
343	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
344		556
345	$coro	557	$coro
346	}	558	}
347		559
348	sub write_runtime {	560	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		561
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	562	Executes the given code block with the given arguments in a seperate
352	or return;	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.
353		566
354	my $value = $cf::RUNTIME + 90 + 10;	567	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		568
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	569	sub fork_call(&@) {
359	and return;	570	my ($cb, @args) = @_;
360		571
361	aio_fsync $fh	572	# we seemingly have to make a local copy of the whole thing,
362	and return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
363		575
364	close $fh	576	my @res = Coro::Util::fork_eval {
365	or return;	577	reset_signals;
		578	&$cb
		579	}, @args;
366		580
367	aio_rename "$runtime~", $runtime	581	wantarray ? @res : $res[-1]
368	and return;	582	}
369		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($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
370	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		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 });
371	}	747	}
372		748
373	=back	749	=back
374		750
375	=cut	751	=cut
376		752
377	#############################################################################	753	#############################################################################
378		754
379	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
380		756
381	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
382	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")
383	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
384		760
385	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>
386	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
387	crossfire+).	763	Deliantra).
388		764
389	=over 4	765	=over 4
390		766
391	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
392		768
…		…
436	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
437		813
438	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
439	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
440		816
441	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
442	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.
443		819
444	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
445		821
446	=over 4	822	=over 4
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
556		932
557	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		937
562	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	939	my $pkg = shift @arg;
564		940
565	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
594	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
595	}	971	}
596		972
597	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
598	} else {	974	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
600	}	976	}
601		977
602	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
603	}	979	}
604		980
…		…
606	if (ref $_[0]) {	982	if (ref $_[0]) {
607	_object_attach @_;	983	_object_attach @_;
608	} else {	984	} else {
609	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
610	}	986	}
		987	_recalc_want;
611	};	988	};
612		989
613	# all those should be optimised	990	# all those should be optimised
614	sub cf::attachable::detach {	991	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
619	reattach ($obj);	996	reattach ($obj);
620	} else {	997	} else {
621	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
622	}	999	}
		1000	_recalc_want;
623	};	1001	};
624		1002
625	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
627		1005
…		…
642	";	1020	";
643	die if $@;	1021	die if $@;
644	}	1022	}
645		1023
646	our $override;	1024	our $override;
647	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?
648		1026
649	sub override {	1027	sub override {
650	$override = 1;	1028	$override = 1;
651	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
652	}	1030	}
653		1031
654	sub do_invoke {	1032	sub do_invoke {
655	my $event = shift;	1033	my $event = shift;
656	my $callbacks = shift;	1034	my $callbacks = shift;
657		1035
658	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
659		1037
660	local $override;	1038	local $override;
661		1039
662	for (@$callbacks) {	1040	for (@$callbacks) {
663	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
672	}	1050	}
673		1051
674	0	1052	0
675	}	1053	}
676		1054
677	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
678		1056
679	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
680		1058
681	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
682		1060
683	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
684	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
685	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
686		1064
687	=back	1065	=back
688		1066
689	=cut	1067	=cut
690		1068
691	#############################################################################	1069	#############################################################################
692	# 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, $ob2
		1112	}
693		1113
694	sub reattach {	1114	sub reattach {
695	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
696	my ($obj) = @_;	1116	my ($obj) = @_;
697		1117
		1118	# no longer needed after getting rid of delete_package?
698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
699		1120
700	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
701		1122
702	@$registry = ();	1123	@$registry = ();
703		1124
…		…
718	cf::attachable->attach (	1139	cf::attachable->attach (
719	prio => -1000000,	1140	prio => -1000000,
720	on_instantiate => sub {	1141	on_instantiate => sub {
721	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
722		1143
723	$data = from_json $data;	1144	$data = decode_json $data;
724		1145
725	for (@$data) {	1146	for (@$data) {
726	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
727		1148
728	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
744	sub object_freezer_save {	1165	sub object_freezer_save {
745	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
746		1167
747	sync_job {	1168	sync_job {
748	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
749	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
750	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
751		1173
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
754	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;
755	aio_fsync $fh;	1179	aio_fsync $fh;
		1180	}
756	close $fh;	1181	aio_close $fh;
757		1182
758	if (@$objs) {	1183	if (@$objs) {
759	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) {
760	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
762	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;
763	aio_fsync $fh;	1190	aio_fsync $fh;
		1191	}
764	close $fh;	1192	aio_close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
766	}	1194	}
767	} else {	1195	} else {
768	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
769	}	1197	}
770		1198
771	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
772	} else {	1203	} else {
773	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
774	}	1205	}
775	} else {	1206	} else {
776	aio_unlink $filename;	1207	aio_unlink $filename;
777	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
778	}	1209	}
779	}	1210	};
780	}	1211	}
781		1212
782	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
783	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
784		1215
…		…
796	or return;	1227	or return;
797		1228
798	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
799	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
800	or return;	1231	or return;
		1232
801	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
802	}	1235	}
803		1236
		1237	utf8::decode (my $decname = $filename);
804	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
806	return ($data, $av);	1241	($data, $av)
807	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
808		1249
809	#############################################################################	1250	#############################################################################
810	# command handling &c	1251	# command handling &c
811		1252
812	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1267	}
827		1268
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1270
830	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.
831		1276
832	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
833	called.	1278	called.
834		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
835	=cut	1291	=cut
836		1292
837	sub register_extcmd {	1293	sub register_extcmd {
838	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
839		1295
840	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
841	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
842		1306
843	cf::player->attach (	1307	cf::player->attach (
844	on_command => sub {	1308	on_command => sub {
845	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
846		1310
…		…
854	cf::override;	1318	cf::override;
855	},	1319	},
856	on_extcmd => sub {	1320	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
858		1322
859	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1324
861	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
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
863	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
864	$pl->ext_reply ($msg->{msgid}, %reply);
865	}
866	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
867	} else {	1340	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
869	}	1342	}
870		1343
871	cf::override;	1344	cf::override;
872	},	1345	},
873	);	1346	);
874		1347
		1348	# "readahead" all extensions
875	sub load_extension {	1349	sub cache_extensions {
876	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
877		1351
878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
879	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
880	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
881	$pkg =~ s/[^[:word:]]/_/g;
882	$pkg = "ext::$pkg";
883
884	warn "... loading '$path' into '$pkg'\n";
885
886	open my $fh, "<:utf8", $path
887	or die "$path: $!";
888
889	my $source =
890	"package $pkg; use strict; use utf8;\n"
891	. "#line 1 \"$path\"\n{\n"
892	. (do { local $/; <$fh> })
893	. "\n};\n1";
894
895	unless (eval $source) {
896	my $msg = $@ ? "$path: $@\n"
897	: "extension disabled.\n";
898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
899	warn $@;
900	warn "mandatory extension failed to load, exiting.\n";
901	exit 1;
902	}	1355	}
903	die $@;
904	}	1356	};
905		1357
906	push @EXTS, $pkg;	1358	$grp
907	}	1359	}
908		1360
909	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
910	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1366	next unless -r $path;
912	eval {	1367
913	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	$progress = 1;
914	1	1424	}
915	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
916	}	1430	};
917	}	1431	}
918		1432
919	#############################################################################	1433	#############################################################################
920		1434
		1435	=back
		1436
921	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
922		1438
923	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
924		1440
925	=cut	1441	=cut
926		1442
927	package cf::player;	1443	package cf::player;
928		1444
…		…
930		1446
931	=head3 cf::player	1447	=head3 cf::player
932		1448
933	=over 4	1449	=over 4
934		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
935	=item cf::player::find $login	1465	=item cf::player::find $login
936		1466
937	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
938		1468
939	=cut	1469	=cut
940		1470
941	sub playerdir($) {	1471	sub playerdir($) {
942	cf::localdir	1472	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1473	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1474	}
948		1475
949	sub path($) {	1476	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1477	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1478
952	(playerdir $login) . "/$login.pl"	1479	(playerdir $login) . "/playerdata"
953	}	1480	}
954		1481
955	sub find_active($) {	1482	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1483	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1484	and $cf::PLAYER{$_[0]}->active
…		…
960		1487
961	sub exists($) {	1488	sub exists($) {
962	my ($login) = @_;	1489	my ($login) = @_;
963		1490
964	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
965	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
966	}	1493	}
967		1494
968	sub find($) {	1495	sub find($) {
969	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
970	my $login = $_[0];	1497	my $login = $_[0];
971		1498
972	my $guard = cf::lock_acquire "user_find:$login";	1499	my $guard = cf::lock_acquire "user_find:$login";
973		1500
974	$cf::PLAYER{$_[0]} || do {	1501	$cf::PLAYER{$_[0]} || do {
975	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
976	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;
977	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
978	}	1518	}
979	}	1519	}
980	}	1520	}
981		1521
…		…
990	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
991		1531
992	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
993	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
994		1534
		1535	cf::get_slot 0.01;
		1536
995	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
996	Coro::cede;	1538	cf::cede_to_tick;
997	}	1539	}
998		1540
999	sub new($) {	1541	sub new($) {
1000	my ($login) = @_;	1542	my ($login) = @_;
1001		1543
…		…
1007	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1008		1550
1009	$self	1551	$self
1010	}	1552	}
1011		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
1012	=item $pl->quit_character	1564	=item $pl->quit_character
1013		1565
1014	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1015	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1016		1568
1017	=cut	1569	=cut
1018		1570
1019	sub quit_character {	1571	sub quit_character {
1020	my ($pl) = @_;	1572	my ($pl) = @_;
1021		1573
		1574	my $name = $pl->ob->name;
		1575
1022	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1023	$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
1024		1578
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1026	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1028	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1029		1585
1030	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1588	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1589	delete $cf::PLAYER{$pl->ob->name};
1034	$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
1035	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;
1036	}	1612	}
1037		1613
1038	=item cf::player::list_logins	1614	=item cf::player::list_logins
1039		1615
1040	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
1041	while and may block, so not sync_job-capable, ever.	1617	while and may block, so not sync_job-capable, ever.
1042		1618
1043	=cut	1619	=cut
1044		1620
1045	sub list_logins {	1621	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1622	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1623	or return [];
1048		1624
1049	my @logins;	1625	my @logins;
1050		1626
1051	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") {
1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1053	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1054	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1055		1637
1056	utf8::decode $login;	1638	utf8::decode $login;
1057	push @logins, $login;	1639	push @logins, $login;
1058	}	1640	}
1059		1641
…		…
1067		1649
1068	=cut	1650	=cut
1069		1651
1070	sub maps($) {	1652	sub maps($) {
1071	my ($pl) = @_;	1653	my ($pl) = @_;
		1654
		1655	$pl = ref $pl ? $pl->ob->name : $pl;
1072		1656
1073	my $files = aio_readdir playerdir $pl	1657	my $files = aio_readdir playerdir $pl
1074	or return;	1658	or return;
1075		1659
1076	my @paths;	1660	my @paths;
…		…
1078	for (@$files) {	1662	for (@$files) {
1079	utf8::decode $_;	1663	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1664	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1665	next unless /^$PATH_SEP/o;
1082		1666
1083	s/\.map$//;	1667	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1668	}
1086		1669
1087	\@paths	1670	\@paths
1088	}	1671	}
1089		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1091		1678
1092	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1093		1680
1094	=cut	1681	=cut
1095		1682
1096	sub ext_reply($$$%) {	1683	sub ext_reply($$@) {
1097	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1098		1685
1099	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1100
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1687	}
1103		1688
1104	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	}
1105		1729
1106	=back	1730	=back
1107
1108		1731
1109	=head3 cf::map	1732	=head3 cf::map
1110		1733
1111	=over 4	1734	=over 4
1112		1735
…		…
1124	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1125	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1126		1749
1127	sub generate_random_map {	1750	sub generate_random_map {
1128	my ($self, $rmp) = @_;	1751	my ($self, $rmp) = @_;
		1752
		1753	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1754
1129	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1130	$self->_create_random_map (	1756	$self->_create_random_map (
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1167	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1168		1794
1169	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1170	local $self->{path};	1796	local $self->{path};
1171	local $self->{load_path};	1797	local $self->{load_path};
1172	local $self->{deny_save};
1173	local $self->{deny_reset};
1174		1798
1175	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1176	}	1800	}
1177		1801
1178	sub normalise {	1802	sub normalise {
1179	my ($path, $base) = @_;	1803	my ($path, $base) = @_;
1180		1804
1181	$path = "$path"; # make sure its a string	1805	$path = "$path"; # make sure its a string
		1806
		1807	$path =~ s/\.map$//;
1182		1808
1183	# map plan:	1809	# map plan:
1184	#	1810	#
1185	# /! non-realised random map exit (special hack!)	1811	# /! non-realised random map exit (special hack!)
1186	# {... are special paths that are not being touched	1812	# {... are special paths that are not being touched
…		…
1223	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1224	return $self;	1850	return $self;
1225	}	1851	}
1226	}	1852	}
1227		1853
1228	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1229	()	1855	()
1230	}	1856	}
1231		1857
1232	sub init {	1858	sub init {
1233	my ($self) = @_;	1859	my ($self) = @_;
…		…
1248		1874
1249	# the original (read-only) location	1875	# the original (read-only) location
1250	sub load_path {	1876	sub load_path {
1251	my ($self) = @_;	1877	my ($self) = @_;
1252		1878
1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1879	"$MAPDIR/$self->{path}.map"
1254	}	1880	}
1255		1881
1256	# the temporary/swap location	1882	# the temporary/swap location
1257	sub save_path {	1883	sub save_path {
1258	my ($self) = @_;	1884	my ($self) = @_;
1259		1885
1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1887	"$TMPDIR/$path.map"
1262	}	1888	}
1263		1889
1264	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1265	sub uniq_path {	1891	sub uniq_path {
1266	my ($self) = @_;	1892	my ($self) = @_;
1267		1893
1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1895	"$UNIQUEDIR/$path"
1270	}	1896	}
1271		1897
1272	# and all this just because we cannot iterate over	1898	sub decay_objects {
1273	# all maps in C++...
1274	sub change_all_map_light {
1275	my ($change) = @_;	1899	my ($self) = @_;
1276		1900
1277	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1278	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1279	}	1904	}
1280		1905
1281	sub unlink_save {	1906	sub unlink_save {
1282	my ($self) = @_;	1907	my ($self) = @_;
1283		1908
…		…
1288		1913
1289	sub load_header_from($) {	1914	sub load_header_from($) {
1290	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1291		1916
1292	utf8::encode $path;	1917	utf8::encode $path;
1293	aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1294	or return;	1919	or return;
1295		1920
1296	$self->_load_header ($path)	1921	$self->_load_header ($f)
1297	or return;	1922	or return;
		1923
		1924	local $MAP_LOADING{$self->{path}} = $self;
		1925	$f->resolve_delayed_derefs;
1298		1926
1299	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1300		1928
1301	1	1929	1
1302	}	1930	}
…		…
1341	$self->load_header_orig	1969	$self->load_header_orig
1342	or return;	1970	or return;
1343	$self->prepare_orig;	1971	$self->prepare_orig;
1344	}	1972	}
1345		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
		1977	$self->default_region (cf::region::find_by_path $self->{path})
		1978	unless $self->default_region;
		1979
1346	1	1980	1
1347	}	1981	}
1348		1982
1349	sub find;	1983	sub find;
1350	sub find {	1984	sub find {
1351	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1352		1986
1353	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1354		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1355	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1356		1991
1357	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1358	my $guard = cf::lock_acquire "map_find:$path";
1359	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1360	or return;	1994	or return;
1361		1995
1362	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1363		1997
1364	$map->load_header	1998	$map->load_header
1365	or return;	1999	or return;
1366		2000
1367	if ($map->should_reset) {	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1368	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1369	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1370	$map->reset;	2006	$map->reset;
1371	undef $guard;
1372	return find $path;	2007	return find $path;
1373	}	2008	}
1374		2009
1375	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1376	}	2011	}
…		…
1380	sub post_load { }	2015	sub post_load { }
1381		2016
1382	sub load {	2017	sub load {
1383	my ($self) = @_;	2018	my ($self) = @_;
1384		2019
		2020	local $self->{deny_reset} = 1; # loading can take a long time
		2021
1385	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1386	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1387		2026
		2027	return unless $self->valid;
1388	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1389		2029
1390	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1391		2031
1392	$self->alloc;	2032	$self->alloc;
1393		2033
1394	$self->pre_load;	2034	$self->pre_load;
		2035	cf::cede_to_tick;
1395		2036
1396	$self->_load_objects ($self->{load_path}, 1)	2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
		2039	$self->_load_objects ($f)
1397	or return;	2040	or return;
1398		2041
1399	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1400	if delete $self->{load_original};	2043	if delete $self->{load_original};
1401		2044
1402	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1403	utf8::encode $uniq;	2046	utf8::encode $uniq;
1404	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1405	$self->clear_unique_items;	2049	$self->clear_unique_items;
1406	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1407	}	2053	}
1408	}	2054	}
1409		2055
1410	Coro::cede;	2056	$f->resolve_delayed_derefs;
1411		2057
		2058	cf::cede_to_tick;
1412	# now do the right thing for maps	2059	# now do the right thing for maps
1413	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1414
1415	unless ($self->{deny_activate}) {
1416	$self->decay_objects;
1417	$self->fix_auto_apply;
1418	$self->update_buttons;
1419	Coro::cede;
1420	$self->set_darkness_map;
1421	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1422	unless $self->difficulty;	2062	unless $self->difficulty;
1423	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;
1424	$self->activate;	2070	$self->activate;
		2071	}
		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
		2076	$self->in_memory (cf::MAP_ACTIVE);
1425	}	2077	}
1426		2078
1427	$self->post_load;	2079	$self->post_load;
1428
1429	$self->in_memory (cf::MAP_IN_MEMORY);
1430	}	2080	}
1431		2081
1432	sub customise_for {	2082	sub customise_for {
1433	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1434		2084
1435	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1436	if $self->per_player;	2086	if $self->per_player;
1437		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1438	$self	2091	$self
1439	}	2092	}
1440		2093
1441	# 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
1442	sub load_diag {	2095	sub load_neighbours {
1443	my ($map) = @_;	2096	my ($map) = @_;
1444		2097
1445	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1446		2099
1447	for (0 .. 3) {	2100	for (0 .. 3) {
1448	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1449	or next;	2102	or next;
1450	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1451	or next;	2104	or next;
1452	$neigh->load;	2105	$neigh->load;
1453		2106
		2107	push @neigh,
1454	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1455	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1456	}	2110	}
1457		2111
1458	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1459	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1460	or next;	2115	or next;
1461	$neigh->load;	2116	$neigh->load;
1462	}	2117	}
1463	}	2118	}
1464		2119
…		…
1469	}	2124	}
1470		2125
1471	sub do_load_sync {	2126	sub do_load_sync {
1472	my ($map) = @_;	2127	my ($map) = @_;
1473		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1474	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1475	}	2133	}
1476		2134
1477	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1478	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1479		2137
1480	sub find_async {	2138	sub find_async {
1481	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1482		2140
1483	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1484		2142
1485	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1486	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1487	}	2145	}
1488		2146
1489	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1490	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1491	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1492	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1493	my $map = find $path	2154	if (my $map = find $k) {
1494	or next;
1495	$map->load;	2155	$map->load if $v;
		2156	}
1496		2157
1497	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1498	}	2159	}
1499	}	2160	}
1500	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1501	};	2162	};
1502	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1505	}	2166	}
1506		2167
1507	sub save {	2168	sub save {
1508	my ($self) = @_;	2169	my ($self) = @_;
1509		2170
1510	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1511		2172
1512	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1513		2174
1514	return unless $self->dirty;	2175	return unless $self->dirty;
1515		2176
…		…
1521	return if $self->{deny_save};	2182	return if $self->{deny_save};
1522		2183
1523	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1524		2185
1525	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1526	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1527	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1528		2192
1529	if ($uniq) {	2193	if ($uniq) {
1530	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1531	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1532	} else {	2196	} else {
…		…
1538	my ($self) = @_;	2202	my ($self) = @_;
1539		2203
1540	# save first because save cedes	2204	# save first because save cedes
1541	$self->save;	2205	$self->save;
1542		2206
1543	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1544		2208
1545	return if $self->players;	2209	return if $self->players;
1546	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1547	return if $self->{deny_save};	2211	return if $self->{deny_save};
1548		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1549	$self->clear;	2217	$self->clear;
1550	$self->in_memory (cf::MAP_SWAPPED);
1551	}	2218	}
1552		2219
1553	sub reset_at {	2220	sub reset_at {
1554	my ($self) = @_;	2221	my ($self) = @_;
1555		2222
1556	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1557	return 1e99 if $self->isa ("ext::map_per_player");#d#
1558	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1559		2225
1560	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1561	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;
1562		2228
…		…
1573	my ($self) = @_;	2239	my ($self) = @_;
1574		2240
1575	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1576		2242
1577	return if $self->players;	2243	return if $self->players;
1578	return if $self->isa ("ext::map_per_player");#d#
1579		2244
1580	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	}
1581		2256
1582	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1583		2258
1584	$self->in_memory (cf::MAP_SWAPPED);	2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1585	$self->clear;	2261	$self->clear;
1586
1587	$_->clear_links_to ($self) for values %cf::MAP;
1588		2262
1589	$self->unlink_save;	2263	$self->unlink_save;
1590	$self->destroy;	2264	$self->destroy;
1591	}	2265	}
1592		2266
1593	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1594		2268
1595	sub nuke {	2269	sub nuke {
1596	my ($self) = @_;	2270	my ($self) = @_;
1597		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1598	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1599		2276
1600	$self->unlink_save;	2277	$self->unlink_save;
1601		2278
1602	bless $self, "cf::map";	2279	bless $self, "cf::map";
1603	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1604	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1605	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1606	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1607		2284
1608	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1609		2287
1610	$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	]
1611	}	2325	}
1612		2326
1613	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1614		2328
1615	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2330	instantiated unique items. May block.
1617		2331
1618	=cut	2332	=cut
1619		2333
1620	sub unique_maps() {	2334	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2335	[
1622	or return;	2336	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2337	utf8::decode $_;
1628	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1629	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1630		2340	? ()
1631	s/\.map$//;	2341	: normalise $_
1632	push @paths, $_;	2342	} @{ aio_readdir $UNIQUEDIR or [] }
1633	}	2343	]
1634
1635	\@paths
1636	}	2344	}
1637
1638	package cf;
1639		2345
1640	=back	2346	=back
1641		2347
1642	=head3 cf::object	2348	=head3 cf::object
1643		2349
…		…
1647		2353
1648	=over 4	2354	=over 4
1649		2355
1650	=item $ob->inv_recursive	2356	=item $ob->inv_recursive
1651		2357
1652	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.
1653		2360
1654	=cut	2361	=cut
1655		2362
1656	sub inv_recursive_;	2363	sub inv_recursive_;
1657	sub inv_recursive_ {	2364	sub inv_recursive_ {
…		…
1660		2367
1661	sub inv_recursive {	2368	sub inv_recursive {
1662	inv_recursive_ inv $_[0]	2369	inv_recursive_ inv $_[0]
1663	}	2370	}
1664		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
1665	package cf;	2400	package cf;
1666		2401
1667	=back	2402	=back
1668		2403
1669	=head3 cf::object::player	2404	=head3 cf::object::player
…		…
1675	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>
1676	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
1677	dialogue with the given NPC character.	2412	dialogue with the given NPC character.
1678		2413
1679	=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	};
1680		2429
1681	# rough implementation of a future "reply" method that works	2430	# rough implementation of a future "reply" method that works
1682	# with dialog boxes.	2431	# with dialog boxes.
1683	#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
1684	sub cf::object::player::reply($$$;$) {	2433	sub cf::object::player::reply($$$;$) {
…		…
1686		2435
1687	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1688		2437
1689	if ($self->{record_replies}) {	2438	if ($self->{record_replies}) {
1690	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2440
1691	} 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 {
1692	$msg = $npc->name . " says: $msg" if $npc;	2449	$msg = $npc->name . " says: $msg" if $npc;
1693	$self->message ($msg, $flags);	2450	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2451	}
1694	}	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 (@_);
1695	}	2463	}
1696		2464
1697	=item $player_object->may ("access")	2465	=item $player_object->may ("access")
1698		2466
1699	Returns wether the given player is authorized to access resource "access"	2467	Returns wether the given player is authorized to access resource "access"
…		…
1712		2480
1713	=item $player_object->enter_link	2481	=item $player_object->enter_link
1714		2482
1715	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}>).
1716		2484
1717	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.
1718	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.
1719		2489
1720	Will never block.	2490	Will never block.
1721		2491
1722	=item $player_object->leave_link ($map, $x, $y)	2492	=item $player_object->leave_link ($map, $x, $y)
1723		2493
…		…
1731	=cut	2501	=cut
1732		2502
1733	sub link_map {	2503	sub link_map {
1734	unless ($LINK_MAP) {	2504	unless ($LINK_MAP) {
1735	$LINK_MAP = cf::map::find "{link}"	2505	$LINK_MAP = cf::map::find "{link}"
1736	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2506	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1737	$LINK_MAP->load;	2507	$LINK_MAP->load;
1738	}	2508	}
1739		2509
1740	$LINK_MAP	2510	$LINK_MAP
1741	}	2511	}
…		…
1746	$self->deactivate_recursive;	2516	$self->deactivate_recursive;
1747		2517
1748	return if UNIVERSAL::isa $self->map, "ext::map_link";	2518	return if UNIVERSAL::isa $self->map, "ext::map_link";
1749		2519
1750	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2520	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1751	if $self->map;	2521	if $self->map && $self->map->{path} ne "{link}";
1752		2522
1753	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2523	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1754	}	2524	}
1755		2525
1756	sub cf::object::player::leave_link {	2526	sub cf::object::player::leave_link {
1757	my ($self, $map, $x, $y) = @_;	2527	my ($self, $map, $x, $y) = @_;
		2528
		2529	return unless $self->contr->active;
1758		2530
1759	my $link_pos = delete $self->{_link_pos};	2531	my $link_pos = delete $self->{_link_pos};
1760		2532
1761	unless ($map) {	2533	unless ($map) {
1762	# restore original map position	2534	# restore original map position
…		…
1776	# use -1 or undef as default coordinates, not 0, 0	2548	# use -1 or undef as default coordinates, not 0, 0
1777	($x, $y) = ($map->enter_x, $map->enter_y)	2549	($x, $y) = ($map->enter_x, $map->enter_y)
1778	if $x <=0 && $y <= 0;	2550	if $x <=0 && $y <= 0;
1779		2551
1780	$map->load;	2552	$map->load;
1781	$map->load_diag;	2553	$map->load_neighbours;
1782		2554
1783	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
1784	$self->activate_recursive;	2561	$self->activate_recursive;
1785	$self->enter_map ($map, $x, $y);
1786	}	2562	}
1787		2563
1788	cf::player->attach (	2564	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1789	on_logout => sub {
1790	my ($pl) = @_;
1791		2565
1792	# abort map switching before logout	2566	Moves the player to the given map-path and coordinates by first freezing
1793	if ($pl->ob->{_link_pos}) {	2567	her, loading and preparing them map, calling the provided $check callback
1794	cf::sync_job {	2568	that has to return the map if sucecssful, and then unfreezes the player on
1795	$pl->ob->leave_link	2569	the new (success) or old (failed) map position. In either case, $done will
1796	};	2570	be called at the end of this process.
1797	}
1798	},
1799	on_login => sub {
1800	my ($pl) = @_;
1801		2571
1802	# try to abort aborted map switching on player login :)	2572	Note that $check will be called with a potentially non-loaded map, so if
1803	# should happen only on crashes	2573	it needs a loaded map it has to call C<< ->load >>.
1804	if ($pl->ob->{_link_pos}) {
1805	$pl->ob->enter_link;
1806	(async {
1807	# we need this sleep as the login has a concurrent enter_exit running
1808	# and this sleep increases chances of the player not ending up in scorn
1809	$pl->ob->reply (undef,
1810	"There was an internal problem at your last logout, "
1811	. "the server will try to bring you to your intended destination in a second.",
1812	cf::NDI_RED);
1813	Coro::Timer::sleep 1;
1814	$pl->ob->leave_link;
1815	})->prio (2);
1816	}
1817	},
1818	);
1819		2574
1820	=item $player_object->goto ($path, $x, $y)
1821
1822	=cut	2575	=cut
		2576
		2577	our $GOTOGEN;
1823		2578
1824	sub cf::object::player::goto {	2579	sub cf::object::player::goto {
1825	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;
1826		2584
1827	$self->enter_link;	2585	$self->enter_link;
1828		2586
1829	(async {	2587	(async {
1830	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) {
1831	$map = $map->customise_for ($self) if $map;	2613	$map = $map->customise_for ($self);
1832		2614	$map = $check->($map) if $check && $map;
1833	# warn "entering ", $map->path, " at ($x, $y)\n"	2615	} else {
1834	# if $map;
1835
1836	$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	}
1837		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};
1838	$self->leave_link ($map, $x, $y);	2629	$self->leave_link ($map, $x, $y);
		2630	}
		2631
		2632	$done->() if $done;
1839	})->prio (1);	2633	})->prio (1);
1840	}	2634	}
1841		2635
1842	=item $player_object->enter_exit ($exit_object)	2636	=item $player_object->enter_exit ($exit_object)
1843		2637
…		…
1863	}	2657	}
1864		2658
1865	sub prepare_random_map {	2659	sub prepare_random_map {
1866	my ($exit) = @_;	2660	my ($exit) = @_;
1867		2661
1868	my $guard = cf::lock_acquire "exit_prepare:$exit";
1869
1870	# all this does is basically replace the /! path by	2662	# all this does is basically replace the /! path by
1871	# a new random map path (?random/...) with a seed	2663	# a new random map path (?random/...) with a seed
1872	# that depends on the exit object	2664	# that depends on the exit object
1873		2665
1874	my $rmp = parse_random_map_params $exit->msg;	2666	my $rmp = parse_random_map_params $exit->msg;
1875		2667
1876	if ($exit->map) {	2668	if ($exit->map) {
1877	$rmp->{region} = $exit->map->region_name;	2669	$rmp->{region} = $exit->region->name;
1878	$rmp->{origin_map} = $exit->map->path;	2670	$rmp->{origin_map} = $exit->map->path;
1879	$rmp->{origin_x} = $exit->x;	2671	$rmp->{origin_x} = $exit->x;
1880	$rmp->{origin_y} = $exit->y;	2672	$rmp->{origin_y} = $exit->y;
		2673
		2674	$exit->map->touch;
1881	}	2675	}
1882		2676
1883	$rmp->{random_seed} ||= $exit->random_seed;	2677	$rmp->{random_seed} ||= $exit->random_seed;
1884		2678
1885	my $data = cf::to_json $rmp;	2679	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1886	my $md5 = Digest::MD5::md5_hex $data;	2680	my $md5 = Digest::MD5::md5_hex $data;
1887	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2681	my $meta = "$RANDOMDIR/$md5.meta";
1888		2682
1889	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2683	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1890	aio_write $fh, 0, (length $data), $data, 0;	2684	aio_write $fh, 0, (length $data), $data, 0;
1891	undef $fh;	2685	undef $fh;
1892	aio_rename "$meta~", $meta;	2686	aio_rename "$meta~", $meta;
1893		2687
		2688	my $slaying = "?random/$md5";
		2689
		2690	if ($exit->valid) {
1894	$exit->slaying ("?random/$md5");	2691	$exit->slaying ("?random/$md5");
1895	$exit->msg (undef);	2692	$exit->msg (undef);
		2693	}
1896	}	2694	}
1897	}	2695	}
1898		2696
1899	sub cf::object::player::enter_exit {	2697	sub cf::object::player::enter_exit {
1900	my ($self, $exit) = @_;	2698	my ($self, $exit) = @_;
…		…
1902	return unless $self->type == cf::PLAYER;	2700	return unless $self->type == cf::PLAYER;
1903		2701
1904	$self->enter_link;	2702	$self->enter_link;
1905		2703
1906	(async {	2704	(async {
1907	$self->deactivate_recursive; # just to be sure	2705	$Coro::current->{desc} = "enter_exit";
		2706
1908	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
1909	prepare_random_map $exit	2714	prepare_random_map $exit
1910	if $exit->slaying eq "/!";	2715	if $exit->slaying eq "/!";
		2716	}
1911		2717
1912	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;
1913	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2719	my $x = $exit->stats->hp;
		2720	my $y = $exit->stats->sp;
1914		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
1915	1;	2728	1
1916	}) {	2729	}) {
1917	$self->message ("Something went wrong deep within the crossfire server. "	2730	$self->message ("Something went wrong deep within the deliantra server. "
1918	. "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. "
1919	. "Please report this to the dungeon master!",	2732	. "Please report this to the dungeon master!",
1920	cf::NDI_UNIQUE | cf::NDI_RED);	2733	cf::NDI_UNIQUE | cf::NDI_RED);
1921		2734
1922	warn "ERROR in enter_exit: $@";	2735	warn "ERROR in enter_exit: $@";
1923	$self->leave_link;	2736	$self->leave_link;
1924	}	2737	}
1925	})->prio (1);	2738	})->prio (1);
…		…
1938		2751
1939	sub cf::client::send_drawinfo {	2752	sub cf::client::send_drawinfo {
1940	my ($self, $text, $flags) = @_;	2753	my ($self, $text, $flags) = @_;
1941		2754
1942	utf8::encode $text;	2755	utf8::encode $text;
1943	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2756	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1944	}	2757	}
1945		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/motd" => {
		2771	id => "infobox",
		2772	title => "MOTD",
		2773	reply => undef,
		2774	tooltip => "The message of the day",
		2775	},
		2776	"c/identify" => {
		2777	id => "infobox",
		2778	title => "Identify",
		2779	reply => undef,
		2780	tooltip => "Items recently identified",
		2781	},
		2782	"c/examine" => {
		2783	id => "infobox",
		2784	title => "Examine",
		2785	reply => undef,
		2786	tooltip => "Signs and other items you examined",
		2787	},
		2788	"c/book" => {
		2789	id => "infobox",
		2790	title => "Book",
		2791	reply => undef,
		2792	tooltip => "The contents of a note or book",
		2793	},
		2794	"c/lookat" => {
		2795	id => "infobox",
		2796	title => "Look",
		2797	reply => undef,
		2798	tooltip => "What you saw there",
		2799	},
		2800	"c/who" => {
		2801	id => "infobox",
		2802	title => "Players",
		2803	reply => undef,
		2804	tooltip => "Shows players who are currently online",
		2805	},
		2806	"c/body" => {
		2807	id => "infobox",
		2808	title => "Body Parts",
		2809	reply => undef,
		2810	tooltip => "Shows which body parts you posess and are available",
		2811	},
		2812	"c/statistics" => {
		2813	id => "infobox",
		2814	title => "Statistics",
		2815	reply => undef,
		2816	tooltip => "Shows your primary statistics",
		2817	},
		2818	"c/skills" => {
		2819	id => "infobox",
		2820	title => "Skills",
		2821	reply => undef,
		2822	tooltip => "Shows your experience per skill and item power",
		2823	},
		2824	"c/shopitems" => {
		2825	id => "infobox",
		2826	title => "Shop Items",
		2827	reply => undef,
		2828	tooltip => "Shows the items currently for sale in this shop",
		2829	},
		2830	"c/resistances" => {
		2831	id => "infobox",
		2832	title => "Resistances",
		2833	reply => undef,
		2834	tooltip => "Shows your resistances",
		2835	},
		2836	"c/pets" => {
		2837	id => "infobox",
		2838	title => "Pets",
		2839	reply => undef,
		2840	tooltip => "Shows information abotu your pets/a specific pet",
		2841	},
		2842	"c/perceiveself" => {
		2843	id => "infobox",
		2844	title => "Perceive Self",
		2845	reply => undef,
		2846	tooltip => "You gained detailed knowledge about yourself",
		2847	},
		2848	"c/uptime" => {
		2849	id => "infobox",
		2850	title => "Uptime",
		2851	reply => undef,
		2852	tooltip => "How long the server has been running since last restart",
		2853	},
		2854	"c/mapinfo" => {
		2855	id => "infobox",
		2856	title => "Map Info",
		2857	reply => undef,
		2858	tooltip => "Information related to the maps",
		2859	},
		2860	"c/party" => {
		2861	id => "party",
		2862	title => "Party",
		2863	reply => "gsay ",
		2864	tooltip => "Messages and chat related to your party",
		2865	},
		2866	"c/death" => {
		2867	id => "death",
		2868	title => "Death",
		2869	reply => undef,
		2870	tooltip => "Reason for and more info about your most recent death",
		2871	},
		2872	"c/say" => $SAY_CHANNEL,
		2873	"c/chat" => $CHAT_CHANNEL,
		2874	);
		2875
		2876	sub cf::client::send_msg {
		2877	my ($self, $channel, $msg, $color, @extra) = @_;
		2878
		2879	$msg = $self->pl->expand_cfpod ($msg)
		2880	unless $color & cf::NDI_VERBATIM;
		2881
		2882	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2883
		2884	# check predefined channels, for the benefit of C
		2885	if ($CHANNEL{$channel}) {
		2886	$channel = $CHANNEL{$channel};
		2887
		2888	$self->ext_msg (channel_info => $channel);
		2889	$channel = $channel->{id};
		2890
		2891	} elsif (ref $channel) {
		2892	# send meta info to client, if not yet sent
		2893	unless (exists $self->{channel}{$channel->{id}}) {
		2894	$self->{channel}{$channel->{id}} = $channel;
		2895	$self->ext_msg (channel_info => $channel);
		2896	}
		2897
		2898	$channel = $channel->{id};
		2899	}
		2900
		2901	return unless @extra || length $msg;
		2902
		2903	# default colour, mask it out
		2904	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2905	if $color & cf::NDI_DEF;
		2906
		2907	my $pkt = "msg "
		2908	. $self->{json_coder}->encode (
		2909	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2910	);
		2911
		2912	# try lzf for large packets
		2913	$pkt = "lzf " . Compress::LZF::compress $pkt
		2914	if 1024 <= length $pkt and $self->{can_lzf};
		2915
		2916	# split very large packets
		2917	if (8192 < length $pkt and $self->{can_lzf}) {
		2918	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2919	$pkt = "frag";
		2920	}
		2921
		2922	$self->send_packet ($pkt);
		2923	}
		2924
		2925	=item $client->ext_msg ($type, @msg)
		2926
		2927	Sends an ext event to the client.
		2928
		2929	=cut
		2930
		2931	sub cf::client::ext_msg($$@) {
		2932	my ($self, $type, @msg) = @_;
		2933
		2934	if ($self->extcmd == 2) {
		2935	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2936	} elsif ($self->extcmd == 1) { # TODO: remove
		2937	push @msg, msgtype => "event_$type";
		2938	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2939	}
		2940	}
		2941
		2942	=item $client->ext_reply ($msgid, @msg)
		2943
		2944	Sends an ext reply to the client.
		2945
		2946	=cut
		2947
		2948	sub cf::client::ext_reply($$@) {
		2949	my ($self, $id, @msg) = @_;
		2950
		2951	if ($self->extcmd == 2) {
		2952	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2953	} elsif ($self->extcmd == 1) {
		2954	#TODO: version 1, remove
		2955	unshift @msg, msgtype => "reply", msgid => $id;
		2956	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2957	}
		2958	}
1946		2959
1947	=item $success = $client->query ($flags, "text", \&cb)	2960	=item $success = $client->query ($flags, "text", \&cb)
1948		2961
1949	Queues a query to the client, calling the given callback with	2962	Queues a query to the client, calling the given callback with
1950	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2963	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1951	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2964	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1952		2965
1953	Queries can fail, so check the return code. Or don't, as queries will become	2966	Queries can fail, so check the return code. Or don't, as queries will
1954	reliable at some point in the future.	2967	become reliable at some point in the future.
1955		2968
1956	=cut	2969	=cut
1957		2970
1958	sub cf::client::query {	2971	sub cf::client::query {
1959	my ($self, $flags, $text, $cb) = @_;	2972	my ($self, $flags, $text, $cb) = @_;
…		…
1967	utf8::encode $text;	2980	utf8::encode $text;
1968	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2981	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1969		2982
1970	$self->send_packet ($self->{query_queue}[0][0])	2983	$self->send_packet ($self->{query_queue}[0][0])
1971	if @{ $self->{query_queue} } == 1;	2984	if @{ $self->{query_queue} } == 1;
		2985
		2986	1
1972	}	2987	}
1973		2988
1974	cf::client->attach (	2989	cf::client->attach (
		2990	on_connect => sub {
		2991	my ($ns) = @_;
		2992
		2993	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2994	},
1975	on_reply => sub {	2995	on_reply => sub {
1976	my ($ns, $msg) = @_;	2996	my ($ns, $msg) = @_;
1977		2997
1978	# this weird shuffling is so that direct followup queries	2998	# this weird shuffling is so that direct followup queries
1979	# get handled first	2999	# get handled first
1980	my $queue = delete $ns->{query_queue}	3000	my $queue = delete $ns->{query_queue}
1981	or return; # be conservative, not sure how that can happen, but we saw a crash here	3001	or return; # be conservative, not sure how that can happen, but we saw a crash here
1982		3002
1983	(shift @$queue)->[1]->($msg);	3003	(shift @$queue)->[1]->($msg);
		3004	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1984		3005
1985	push @{ $ns->{query_queue} }, @$queue;	3006	push @{ $ns->{query_queue} }, @$queue;
1986		3007
1987	if (@{ $ns->{query_queue} } == @$queue) {	3008	if (@{ $ns->{query_queue} } == @$queue) {
1988	if (@$queue) {	3009	if (@$queue) {
…		…
1990	} else {	3011	} else {
1991	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3012	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1992	}	3013	}
1993	}	3014	}
1994	},	3015	},
		3016	on_exticmd => sub {
		3017	my ($ns, $buf) = @_;
		3018
		3019	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3020
		3021	if (ref $msg) {
		3022	my ($type, $reply, @payload) =
		3023	"ARRAY" eq ref $msg
		3024	? @$msg
		3025	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3026
		3027	my @reply;
		3028
		3029	if (my $cb = $EXTICMD{$type}) {
		3030	@reply = $cb->($ns, @payload);
		3031	}
		3032
		3033	$ns->ext_reply ($reply, @reply)
		3034	if $reply;
		3035
		3036	} else {
		3037	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3038	}
		3039
		3040	cf::override;
		3041	},
1995	);	3042	);
1996		3043
1997	=item $client->async (\&cb)	3044	=item $client->async (\&cb)
1998		3045
1999	Create a new coroutine, running the specified callback. The coroutine will	3046	Create a new coroutine, running the specified callback. The coroutine will
…		…
2040	our $safe = new Safe "safe";	3087	our $safe = new Safe "safe";
2041	our $safe_hole = new Safe::Hole;	3088	our $safe_hole = new Safe::Hole;
2042		3089
2043	$SIG{FPE} = 'IGNORE';	3090	$SIG{FPE} = 'IGNORE';
2044		3091
2045	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3092	$safe->permit_only (Opcode::opset qw(
		3093	:base_core :base_mem :base_orig :base_math
		3094	grepstart grepwhile mapstart mapwhile
		3095	sort time
		3096	));
2046		3097
2047	# here we export the classes and methods available to script code	3098	# here we export the classes and methods available to script code
2048		3099
2049	=pod	3100	=pod
2050		3101
2051	The following fucntions and emthods are available within a safe environment:	3102	The following functions and methods are available within a safe environment:
2052		3103
2053	cf::object contr pay_amount pay_player map	3104	cf::object
		3105	contr pay_amount pay_player map x y force_find force_add destroy
		3106	insert remove name archname title slaying race decrease split
		3107	value
		3108
2054	cf::object::player player	3109	cf::object::player
2055	cf::player peaceful	3110	player
2056	cf::map trigger	3111
		3112	cf::player
		3113	peaceful
		3114
		3115	cf::map
		3116	trigger
2057		3117
2058	=cut	3118	=cut
2059		3119
2060	for (	3120	for (
2061	["cf::object" => qw(contr pay_amount pay_player map)],	3121	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3122	insert remove inv nrof name archname title slaying race
		3123	decrease split destroy change_exp value msg lore send_msg)],
2062	["cf::object::player" => qw(player)],	3124	["cf::object::player" => qw(player)],
2063	["cf::player" => qw(peaceful)],	3125	["cf::player" => qw(peaceful send_msg)],
2064	["cf::map" => qw(trigger)],	3126	["cf::map" => qw(trigger)],
2065	) {	3127	) {
2066	no strict 'refs';	3128	no strict 'refs';
2067	my ($pkg, @funs) = @$_;	3129	my ($pkg, @funs) = @$_;
2068	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3130	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2085	my ($code, %vars) = @_;	3147	my ($code, %vars) = @_;
2086		3148
2087	my $qcode = $code;	3149	my $qcode = $code;
2088	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3150	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2089	$qcode =~ s/\n/\\n/g;	3151	$qcode =~ s/\n/\\n/g;
		3152
		3153	%vars = (_dummy => 0) unless %vars;
2090		3154
2091	local $_;	3155	local $_;
2092	local @safe::cf::_safe_eval_args = values %vars;	3156	local @safe::cf::_safe_eval_args = values %vars;
2093		3157
2094	my $eval =	3158	my $eval =
…		…
2137	=back	3201	=back
2138		3202
2139	=cut	3203	=cut
2140		3204
2141	#############################################################################	3205	#############################################################################
		3206	# the server's init and main functions
2142		3207
2143	=head2 EXTENSION DATABASE SUPPORT	3208	sub load_facedata($) {
		3209	my ($path) = @_;
2144		3210
2145	Crossfire maintains a very simple database for extension use. It can	3211	# HACK to clear player env face cache, we need some signal framework
2146	currently store anything that can be serialised using Storable, which	3212	# for this (global event?)
2147	excludes objects.	3213	%ext::player_env::MUSIC_FACE_CACHE = ();
2148		3214
2149	The parameter C<$family> should best start with the name of the extension	3215	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2150	using it, it should be unique.
2151		3216
2152	=over 4	3217	warn "loading facedata from $path\n";
2153		3218
2154	=item $hashref = cf::db_get $family	3219	my $facedata;
		3220	0 < aio_load $path, $facedata
		3221	or die "$path: $!";
2155		3222
2156	Return a hashref for use by the extension C<$family>, which can be	3223	$facedata = Coro::Storable::thaw $facedata;
2157	modified. After modifications, you have to call C<cf::db_dirty> or
2158	C<cf::db_sync>.
2159		3224
2160	=item $value = cf::db_get $family => $key	3225	$facedata->{version} == 2
		3226	or cf::cleanup "$path: version mismatch, cannot proceed.";
2161		3227
2162	Returns a single value from the database	3228	# patch in the exptable
2163		3229	$facedata->{resource}{"res/exp_table"} = {
2164	=item cf::db_put $family => $hashref	3230	type => FT_RSRC,
2165		3231	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2166	Stores the given family hashref into the database. Updates are delayed, if
2167	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2168
2169	=item cf::db_put $family => $key => $value
2170
2171	Stores the given C<$value> in the family hash. Updates are delayed, if you
2172	want the data to be synced to disk immediately, use C<cf::db_sync>.
2173
2174	=item cf::db_dirty
2175
2176	Marks the database as dirty, to be updated at a later time.
2177
2178	=item cf::db_sync
2179
2180	Immediately write the database to disk I<if it is dirty>.
2181
2182	=cut
2183
2184	our $DB;
2185
2186	{
2187	my $path = cf::localdir . "/database.pst";
2188
2189	sub db_load() {
2190	$DB = stat $path ? Storable::retrieve $path : { };
2191	}	3232	};
		3233	cf::cede_to_tick;
2192		3234
2193	my $pid;
2194
2195	sub db_save() {
2196	waitpid $pid, 0 if $pid;
2197	if (0 == ($pid = fork)) {
2198	$DB->{_meta}{version} = 1;
2199	Storable::nstore $DB, "$path~";
2200	rename "$path~", $path;
2201	cf::_exit 0 if defined $pid;
2202	}
2203	}	3235	{
		3236	my $faces = $facedata->{faceinfo};
2204		3237
2205	my $dirty;	3238	while (my ($face, $info) = each %$faces) {
		3239	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2206		3240
2207	sub db_sync() {	3241	cf::face::set_visibility $idx, $info->{visibility};
2208	db_save if $dirty;	3242	cf::face::set_magicmap $idx, $info->{magicmap};
2209	undef $dirty;	3243	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2210	}	3244	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2211		3245
2212	my $idle = Event->idle (	3246	cf::cede_to_tick;
2213	reentrant => 0,
2214	min => 10,
2215	max => 20,
2216	repeat => 0,
2217	data => WF_AUTOCANCEL,
2218	cb => \&db_sync,
2219	);
2220
2221	sub db_dirty() {
2222	$dirty = 1;
2223	$idle->start;
2224	}
2225
2226	sub db_get($;$) {
2227	@_ >= 2
2228	? $DB->{$_[0]}{$_[1]}
2229	: ($DB->{$_[0]} ||= { })
2230	}
2231
2232	sub db_put($$;$) {
2233	if (@_ >= 3) {
2234	$DB->{$_[0]}{$_[1]} = $_[2];
2235	} else {
2236	$DB->{$_[0]} = $_[1];
2237	}
2238	db_dirty;
2239	}
2240
2241	cf::global->attach (
2242	prio => 10000,
2243	on_cleanup => sub {
2244	db_sync;
2245	},	3247	}
2246	);
2247	}
2248		3248
2249	#############################################################################	3249	while (my ($face, $info) = each %$faces) {
2250	# the server's main()	3250	next unless $info->{smooth};
2251		3251
2252	sub cfg_load {	3252	my $idx = cf::face::find $face
		3253	or next;
		3254
		3255	if (my $smooth = cf::face::find $info->{smooth}) {
		3256	cf::face::set_smooth $idx, $smooth;
		3257	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3258	} else {
		3259	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3260	}
		3261
		3262	cf::cede_to_tick;
		3263	}
		3264	}
		3265
		3266	{
		3267	my $anims = $facedata->{animinfo};
		3268
		3269	while (my ($anim, $info) = each %$anims) {
		3270	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3271	cf::cede_to_tick;
		3272	}
		3273
		3274	cf::anim::invalidate_all; # d'oh
		3275	}
		3276
		3277	{
		3278	# TODO: for gcfclient pleasure, we should give resources
		3279	# that gcfclient doesn't grok a >10000 face index.
		3280	my $res = $facedata->{resource};
		3281
		3282	while (my ($name, $info) = each %$res) {
		3283	if (defined $info->{type}) {
		3284	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3285	my $data;
		3286
		3287	if ($info->{type} & 1) {
		3288	# prepend meta info
		3289
		3290	my $meta = $enc->encode ({
		3291	name => $name,
		3292	%{ $info->{meta} || {} },
		3293	});
		3294
		3295	$data = pack "(w/a*)*", $meta, $info->{data};
		3296	} else {
		3297	$data = $info->{data};
		3298	}
		3299
		3300	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3301	cf::face::set_type $idx, $info->{type};
		3302	} else {
		3303	$RESOURCE{$name} = $info;
		3304	}
		3305
		3306	cf::cede_to_tick;
		3307	}
		3308	}
		3309
		3310	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3311
		3312	1
		3313	}
		3314
		3315	cf::global->attach (on_resource_update => sub {
		3316	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3317	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3318
		3319	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3320	my $sound = $soundconf->{compat}[$_]
		3321	or next;
		3322
		3323	my $face = cf::face::find "sound/$sound->[1]";
		3324	cf::sound::set $sound->[0] => $face;
		3325	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3326	}
		3327
		3328	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3329	my $face = cf::face::find "sound/$v";
		3330	cf::sound::set $k => $face;
		3331	}
		3332	}
		3333	});
		3334
		3335	register_exticmd fx_want => sub {
		3336	my ($ns, $want) = @_;
		3337
		3338	while (my ($k, $v) = each %$want) {
		3339	$ns->fx_want ($k, $v);
		3340	}
		3341	};
		3342
		3343	sub load_resource_file($) {
		3344	my $guard = lock_acquire "load_resource_file";
		3345
		3346	my $status = load_resource_file_ $_[0];
		3347	get_slot 0.1, 100;
		3348	cf::arch::commit_load;
		3349
		3350	$status
		3351	}
		3352
		3353	sub reload_regions {
		3354	# HACK to clear player env face cache, we need some signal framework
		3355	# for this (global event?)
		3356	%ext::player_env::MUSIC_FACE_CACHE = ();
		3357
		3358	load_resource_file "$MAPDIR/regions"
		3359	or die "unable to load regions file\n";
		3360
		3361	for (cf::region::list) {
		3362	$_->{match} = qr/$_->{match}/
		3363	if exists $_->{match};
		3364	}
		3365	}
		3366
		3367	sub reload_facedata {
		3368	load_facedata "$DATADIR/facedata"
		3369	or die "unable to load facedata\n";
		3370	}
		3371
		3372	sub reload_archetypes {
		3373	load_resource_file "$DATADIR/archetypes"
		3374	or die "unable to load archetypes\n";
		3375	}
		3376
		3377	sub reload_treasures {
		3378	load_resource_file "$DATADIR/treasures"
		3379	or die "unable to load treasurelists\n";
		3380	}
		3381
		3382	sub reload_resources {
		3383	warn "reloading resource files...\n";
		3384
		3385	reload_facedata;
		3386	reload_archetypes;
		3387	reload_regions;
		3388	reload_treasures;
		3389
		3390	warn "finished reloading resource files\n";
		3391	}
		3392
		3393	sub reload_config {
		3394	warn "reloading config file...\n";
		3395
2253	open my $fh, "<:utf8", cf::confdir . "/config"	3396	open my $fh, "<:utf8", "$CONFDIR/config"
2254	or return;	3397	or return;
2255		3398
2256	local $/;	3399	local $/;
2257	*CFG = YAML::Syck::Load <$fh>;	3400	*CFG = YAML::XS::Load scalar <$fh>;
2258		3401
2259	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3402	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2260		3403
2261	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3404	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2262	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3405	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2266	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3409	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2267	and die "WARNING: m(un)lockall failed: $!\n";	3410	and die "WARNING: m(un)lockall failed: $!\n";
2268	};	3411	};
2269	warn $@ if $@;	3412	warn $@ if $@;
2270	}	3413	}
		3414
		3415	warn "finished reloading resource files\n";
		3416	}
		3417
		3418	sub pidfile() {
		3419	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3420	or die "$PIDFILE: $!";
		3421	flock $fh, &Fcntl::LOCK_EX
		3422	or die "$PIDFILE: flock: $!";
		3423	$fh
		3424	}
		3425
		3426	# make sure only one server instance is running at any one time
		3427	sub atomic {
		3428	my $fh = pidfile;
		3429
		3430	my $pid = <$fh>;
		3431	kill 9, $pid if $pid > 0;
		3432
		3433	seek $fh, 0, 0;
		3434	print $fh $$;
		3435	}
		3436
		3437	sub main_loop {
		3438	warn "EV::loop starting\n";
		3439	if (1) {
		3440	EV::loop;
		3441	}
		3442	warn "EV::loop returned\n";
		3443	goto &main_loop unless $REALLY_UNLOOP;
2271	}	3444	}
2272		3445
2273	sub main {	3446	sub main {
		3447	cf::init_globals; # initialise logging
		3448
		3449	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3450	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3451	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3452	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3453
		3454	cf::init_experience;
		3455	cf::init_anim;
		3456	cf::init_attackmess;
		3457	cf::init_dynamic;
		3458
		3459	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3460
2274	# we must not ever block the main coroutine	3461	# we must not ever block the main coroutine
2275	local $Coro::idle = sub {	3462	local $Coro::idle = sub {
2276	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3463	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2277	(async {	3464	(async {
2278	Event::one_event;	3465	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3466	EV::loop EV::LOOP_ONESHOT;
2279	})->prio (Coro::PRIO_MAX);	3467	})->prio (Coro::PRIO_MAX);
2280	};	3468	};
2281		3469
2282	cfg_load;	3470	evthread_start IO::AIO::poll_fileno;
2283	db_load;	3471
		3472	cf::sync_job {
		3473	reload_resources;
		3474	reload_config;
		3475	db_init;
		3476
		3477	cf::load_settings;
		3478	cf::load_materials;
		3479	cf::init_uuid;
		3480	cf::init_signals;
		3481	cf::init_commands;
		3482	cf::init_skills;
		3483
		3484	cf::init_beforeplay;
		3485
		3486	atomic;
		3487
2284	load_extensions;	3488	load_extensions;
2285		3489
2286	$TICK_WATCHER->start;	3490	utime time, time, $RUNTIMEFILE;
2287	Event::loop;	3491
		3492	# no (long-running) fork's whatsoever before this point(!)
		3493	use POSIX ();
		3494	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3495
		3496	(pop @POST_INIT)->(0) while @POST_INIT;
		3497	};
		3498
		3499	main_loop;
2288	}	3500	}
2289		3501
2290	#############################################################################	3502	#############################################################################
2291	# initialisation and cleanup	3503	# initialisation and cleanup
2292		3504
2293	# install some emergency cleanup handlers	3505	# install some emergency cleanup handlers
2294	BEGIN {	3506	BEGIN {
		3507	our %SIGWATCHER = ();
2295	for my $signal (qw(INT HUP TERM)) {	3508	for my $signal (qw(INT HUP TERM)) {
2296	Event->signal (	3509	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2297	reentrant => 0,
2298	data => WF_AUTOCANCEL,
2299	signal => $signal,
2300	prio => 0,
2301	cb => sub {
2302	cf::cleanup "SIG$signal";	3510	cf::cleanup "SIG$signal";
2303	},
2304	);	3511	};
		3512	}
		3513	}
		3514
		3515	sub write_runtime_sync {
		3516	# first touch the runtime file to show we are still running:
		3517	# the fsync below can take a very very long time.
		3518
		3519	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3520
		3521	my $guard = cf::lock_acquire "write_runtime";
		3522
		3523	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3524	or return;
		3525
		3526	my $value = $cf::RUNTIME + 90 + 10;
		3527	# 10 is the runtime save interval, for a monotonic clock
		3528	# 60 allows for the watchdog to kill the server.
		3529
		3530	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3531	and return;
		3532
		3533	# always fsync - this file is important
		3534	aio_fsync $fh
		3535	and return;
		3536
		3537	# touch it again to show we are up-to-date
		3538	aio_utime $fh, undef, undef;
		3539
		3540	close $fh
		3541	or return;
		3542
		3543	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3544	and return;
		3545
		3546	warn "runtime file written.\n";
		3547
2305	}	3548	1
		3549	}
		3550
		3551	our $uuid_lock;
		3552	our $uuid_skip;
		3553
		3554	sub write_uuid_sync($) {
		3555	$uuid_skip ||= $_[0];
		3556
		3557	return if $uuid_lock;
		3558	local $uuid_lock = 1;
		3559
		3560	my $uuid = "$LOCALDIR/uuid";
		3561
		3562	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3563	or return;
		3564
		3565	my $value = uuid_seq uuid_cur;
		3566
		3567	unless ($value) {
		3568	warn "cowardly refusing to write zero uuid value!\n";
		3569	return;
		3570	}
		3571
		3572	my $value = uuid_str $value + $uuid_skip;
		3573	$uuid_skip = 0;
		3574
		3575	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3576	and return;
		3577
		3578	# always fsync - this file is important
		3579	aio_fsync $fh
		3580	and return;
		3581
		3582	close $fh
		3583	or return;
		3584
		3585	aio_rename "$uuid~", $uuid
		3586	and return;
		3587
		3588	warn "uuid file written ($value).\n";
		3589
		3590	1
		3591
		3592	}
		3593
		3594	sub write_uuid($$) {
		3595	my ($skip, $sync) = @_;
		3596
		3597	$sync ? write_uuid_sync $skip
		3598	: async { write_uuid_sync $skip };
2306	}	3599	}
2307		3600
2308	sub emergency_save() {	3601	sub emergency_save() {
2309	my $freeze_guard = cf::freeze_mainloop;	3602	my $freeze_guard = cf::freeze_mainloop;
2310		3603
2311	warn "enter emergency perl save\n";	3604	warn "emergency_perl_save: enter\n";
2312		3605
2313	cf::sync_job {	3606	cf::sync_job {
		3607	# this is a trade-off: we want to be very quick here, so
		3608	# save all maps without fsync, and later call a global sync
		3609	# (which in turn might be very very slow)
		3610	local $USE_FSYNC = 0;
		3611
2314	# use a peculiar iteration method to avoid tripping on perl	3612	# use a peculiar iteration method to avoid tripping on perl
2315	# refcount bugs in for. also avoids problems with players	3613	# refcount bugs in for. also avoids problems with players
2316	# and maps saved/destroyed asynchronously.	3614	# and maps saved/destroyed asynchronously.
2317	warn "begin emergency player save\n";	3615	warn "emergency_perl_save: begin player save\n";
2318	for my $login (keys %cf::PLAYER) {	3616	for my $login (keys %cf::PLAYER) {
2319	my $pl = $cf::PLAYER{$login} or next;	3617	my $pl = $cf::PLAYER{$login} or next;
2320	$pl->valid or next;	3618	$pl->valid or next;
		3619	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2321	$pl->save;	3620	$pl->save;
2322	}	3621	}
2323	warn "end emergency player save\n";	3622	warn "emergency_perl_save: end player save\n";
2324		3623
2325	warn "begin emergency map save\n";	3624	warn "emergency_perl_save: begin map save\n";
2326	for my $path (keys %cf::MAP) {	3625	for my $path (keys %cf::MAP) {
2327	my $map = $cf::MAP{$path} or next;	3626	my $map = $cf::MAP{$path} or next;
2328	$map->valid or next;	3627	$map->valid or next;
2329	$map->save;	3628	$map->save;
2330	}	3629	}
2331	warn "end emergency map save\n";	3630	warn "emergency_perl_save: end map save\n";
		3631
		3632	warn "emergency_perl_save: begin database checkpoint\n";
		3633	BDB::db_env_txn_checkpoint $DB_ENV;
		3634	warn "emergency_perl_save: end database checkpoint\n";
		3635
		3636	warn "emergency_perl_save: begin write uuid\n";
		3637	write_uuid_sync 1;
		3638	warn "emergency_perl_save: end write uuid\n";
2332	};	3639	};
2333		3640
		3641	warn "emergency_perl_save: starting sync()\n";
		3642	IO::AIO::aio_sync sub {
		3643	warn "emergency_perl_save: finished sync()\n";
		3644	};
		3645
2334	warn "leave emergency perl save\n";	3646	warn "emergency_perl_save: leave\n";
2335	}	3647	}
2336		3648
		3649	sub post_cleanup {
		3650	my ($make_core) = @_;
		3651
		3652	warn Carp::longmess "post_cleanup backtrace"
		3653	if $make_core;
		3654
		3655	my $fh = pidfile;
		3656	unlink $PIDFILE if <$fh> == $$;
		3657	}
		3658
		3659	# a safer delete_package, copied from Symbol
		3660	sub clear_package($) {
		3661	my $pkg = shift;
		3662
		3663	# expand to full symbol table name if needed
		3664	unless ($pkg =~ /^main::.*::$/) {
		3665	$pkg = "main$pkg" if $pkg =~ /^::/;
		3666	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3667	$pkg .= '::' unless $pkg =~ /::$/;
		3668	}
		3669
		3670	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3671	my $stem_symtab = *{$stem}{HASH};
		3672
		3673	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3674	or return;
		3675
		3676	# clear all symbols
		3677	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3678	for my $name (keys %$leaf_symtab) {
		3679	_gv_clear *{"$pkg$name"};
		3680	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3681	}
		3682	warn "cleared package $pkg\n";#d#
		3683	}
		3684
2337	sub reload() {	3685	sub do_reload_perl() {
2338	# can/must only be called in main	3686	# can/must only be called in main
2339	if ($Coro::current != $Coro::main) {	3687	if ($Coro::current != $Coro::main) {
2340	warn "can only reload from main coroutine";	3688	warn "can only reload from main coroutine";
2341	return;	3689	return;
2342	}	3690	}
2343		3691
		3692	return if $RELOAD++;
		3693
		3694	my $t1 = EV::time;
		3695
		3696	while ($RELOAD) {
2344	warn "reloading...";	3697	warn "reloading...";
2345		3698
2346	warn "cancelling server ticker";	3699	warn "entering sync_job";
2347	$TICK_WATCHER->cancel;
2348		3700
		3701	cf::sync_job {
		3702	cf::write_runtime_sync; # external watchdog should not bark
2349	cf::emergency_save;	3703	cf::emergency_save;
		3704	cf::write_runtime_sync; # external watchdog should not bark
2350		3705
2351	eval {	3706	warn "syncing database to disk";
		3707	BDB::db_env_txn_checkpoint $DB_ENV;
		3708
2352	# if anything goes wrong in here, we should simply crash as we already saved	3709	# if anything goes wrong in here, we should simply crash as we already saved
2353		3710
2354	warn "syncing database to disk";
2355	cf::db_sync;
2356
2357	warn "cancelling all WF_AUTOCANCEL watchers";
2358	for (Event::all_watchers) {
2359	$_->cancel if $_->data & WF_AUTOCANCEL;
2360	}
2361
2362	warn "flushing outstanding aio requests";	3711	warn "flushing outstanding aio requests";
2363	for (;;) {	3712	while (IO::AIO::nreqs || BDB::nreqs) {
2364	IO::AIO::flush;	3713	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2365	Coro::cede;
2366	last unless IO::AIO::nreqs;
2367	warn "iterate...";
2368	}
2369
2370	warn "cancelling all extension coros";
2371	$_->cancel for values %EXT_CORO;
2372	%EXT_CORO = ();
2373
2374	warn "removing commands";
2375	%COMMAND = ();
2376
2377	warn "removing ext commands";
2378	%EXTCMD = ();
2379
2380	warn "unloading/nuking all extensions";
2381	for my $pkg (@EXTS) {
2382	warn "... unloading $pkg";
2383
2384	if (my $cb = $pkg->can ("unload")) {
2385	eval {
2386	$cb->($pkg);
2387	1
2388	} or warn "$pkg unloaded, but with errors: $@";
2389	}	3714	}
2390		3715
2391	warn "... nuking $pkg";	3716	warn "cancelling all extension coros";
2392	Symbol::delete_package $pkg;	3717	$_->cancel for values %EXT_CORO;
2393	}	3718	%EXT_CORO = ();
2394		3719
2395	warn "unloading all perl modules loaded from $LIBDIR";	3720	warn "removing commands";
2396	while (my ($k, $v) = each %INC) {	3721	%COMMAND = ();
2397	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2398		3722
		3723	warn "removing ext/exti commands";
		3724	%EXTCMD = ();
		3725	%EXTICMD = ();
		3726
		3727	warn "unloading/nuking all extensions";
		3728	for my $pkg (@EXTS) {
2399	warn "... unloading $k";	3729	warn "... unloading $pkg";
2400	delete $INC{$k};
2401		3730
2402	$k =~ s/\.pm$//;
2403	$k =~ s/\//::/g;
2404
2405	if (my $cb = $k->can ("unload_module")) {	3731	if (my $cb = $pkg->can ("unload")) {
		3732	eval {
2406	$cb->();	3733	$cb->($pkg);
		3734	1
		3735	} or warn "$pkg unloaded, but with errors: $@";
		3736	}
		3737
		3738	warn "... clearing $pkg";
		3739	clear_package $pkg;
2407	}	3740	}
2408		3741
2409	Symbol::delete_package $k;	3742	warn "unloading all perl modules loaded from $LIBDIR";
		3743	while (my ($k, $v) = each %INC) {
		3744	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3745
		3746	warn "... unloading $k";
		3747	delete $INC{$k};
		3748
		3749	$k =~ s/\.pm$//;
		3750	$k =~ s/\//::/g;
		3751
		3752	if (my $cb = $k->can ("unload_module")) {
		3753	$cb->();
		3754	}
		3755
		3756	clear_package $k;
2410	}	3757	}
2411		3758
2412	warn "getting rid of safe::, as good as possible";	3759	warn "getting rid of safe::, as good as possible";
2413	Symbol::delete_package "safe::$_"	3760	clear_package "safe::$_"
2414	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3761	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2415		3762
2416	warn "unloading cf.pm \"a bit\"";	3763	warn "unloading cf.pm \"a bit\"";
2417	delete $INC{"cf.pm"};	3764	delete $INC{"cf.pm"};
		3765	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2418		3766
2419	# don't, removes xs symbols, too,	3767	# don't, removes xs symbols, too,
2420	# and global variables created in xs	3768	# and global variables created in xs
2421	#Symbol::delete_package __PACKAGE__;	3769	#clear_package __PACKAGE__;
2422		3770
2423	warn "unload completed, starting to reload now";	3771	warn "unload completed, starting to reload now";
2424		3772
2425	warn "reloading cf.pm";	3773	warn "reloading cf.pm";
2426	require cf;	3774	require cf;
2427	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3775	cf::_connect_to_perl_1;
2428		3776
2429	warn "loading config and database again";	3777	warn "loading config and database again";
2430	cf::cfg_load;	3778	cf::reload_config;
2431	cf::db_load;
2432		3779
2433	warn "loading extensions";	3780	warn "loading extensions";
2434	cf::load_extensions;	3781	cf::load_extensions;
2435		3782
		3783	if ($REATTACH_ON_RELOAD) {
2436	warn "reattaching attachments to objects/players";	3784	warn "reattaching attachments to objects/players";
2437	_global_reattach;	3785	_global_reattach; # objects, sockets
2438	warn "reattaching attachments to maps";	3786	warn "reattaching attachments to maps";
2439	reattach $_ for values %MAP;	3787	reattach $_ for values %MAP;
		3788	warn "reattaching attachments to players";
		3789	reattach $_ for values %PLAYER;
		3790	}
2440		3791
2441	warn "restarting server ticker";	3792	warn "running post_init jobs";
		3793	(pop @POST_INIT)->(1) while @POST_INIT;
2442		3794
2443	$TICK_WATCHER->start;	3795	warn "leaving sync_job";
		3796
		3797	1
		3798	} or do {
		3799	warn $@;
		3800	cf::cleanup "error while reloading, exiting.";
		3801	};
		3802
		3803	warn "reloaded";
		3804	--$RELOAD;
		3805	}
		3806
		3807	$t1 = EV::time - $t1;
		3808	warn "reload completed in ${t1}s\n";
		3809	};
		3810
		3811	our $RELOAD_WATCHER; # used only during reload
		3812
		3813	sub reload_perl() {
		3814	# doing reload synchronously and two reloads happen back-to-back,
		3815	# coro crashes during coro_state_free->destroy here.
		3816
		3817	$RELOAD_WATCHER ||= cf::async {
		3818	Coro::AIO::aio_wait cache_extensions;
		3819
		3820	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3821	do_reload_perl;
		3822	undef $RELOAD_WATCHER;
		3823	};
2444	};	3824	};
2445		3825	}
2446	if ($@) {
2447	warn $@;
2448	warn "error while reloading, exiting.";
2449	exit 1;
2450	}
2451
2452	warn "reloaded";
2453	};
2454
2455	our $RELOAD_WATCHER; # used only during reload
2456		3826
2457	register_command "reload" => sub {	3827	register_command "reload" => sub {
2458	my ($who, $arg) = @_;	3828	my ($who, $arg) = @_;
2459		3829
2460	if ($who->flag (FLAG_WIZ)) {	3830	if ($who->flag (FLAG_WIZ)) {
2461	$who->message ("reloading server.");	3831	$who->message ("reloading server.");
2462		3832	async {
2463	# doing reload synchronously and two reloads happen back-to-back,	3833	$Coro::current->{desc} = "perl_reload";
2464	# coro crashes during coro_state_free->destroy here.
2465
2466	$RELOAD_WATCHER ||= Event->timer (
2467	reentrant => 0,
2468	after => 0,
2469	data => WF_AUTOCANCEL,
2470	cb => sub {
2471	reload;	3834	reload_perl;
2472	undef $RELOAD_WATCHER;
2473	},
2474	);	3835	};
2475	}	3836	}
2476	};	3837	};
2477		3838
2478	unshift @INC, $LIBDIR;	3839	unshift @INC, $LIBDIR;
2479		3840
2480	my $bug_warning = 0;	3841	my $bug_warning = 0;
2481		3842
2482	$TICK_WATCHER = Event->timer (	3843	our @WAIT_FOR_TICK;
2483	reentrant => 0,	3844	our @WAIT_FOR_TICK_BEGIN;
2484	parked => 1,	3845
2485	prio => 0,	3846	sub wait_for_tick {
2486	at => $NEXT_TICK || $TICK,	3847	return if tick_inhibit || $Coro::current == $Coro::main;
2487	data => WF_AUTOCANCEL,	3848
2488	cb => sub {	3849	my $signal = new Coro::Signal;
		3850	push @WAIT_FOR_TICK, $signal;
		3851	$signal->wait;
		3852	}
		3853
		3854	sub wait_for_tick_begin {
		3855	return if tick_inhibit || $Coro::current == $Coro::main;
		3856
		3857	my $signal = new Coro::Signal;
		3858	push @WAIT_FOR_TICK_BEGIN, $signal;
		3859	$signal->wait;
		3860	}
		3861
		3862	sub tick {
2489	if ($Coro::current != $Coro::main) {	3863	if ($Coro::current != $Coro::main) {
2490	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3864	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2491	unless ++$bug_warning > 10;	3865	unless ++$bug_warning > 10;
2492	return;	3866	return;
2493	}	3867	}
2494		3868
2495	$NOW = Event::time;
2496
2497	cf::server_tick; # one server iteration	3869	cf::server_tick; # one server iteration
2498	$RUNTIME += $TICK;
2499	$NEXT_TICK += $TICK;
2500		3870
2501	$WAIT_FOR_TICK->broadcast;	3871	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2502	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3872	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2503		3873	Coro::async_pool {
2504	Event::sweep;	3874	$Coro::current->{desc} = "runtime saver";
2505	Coro::cede_notself;
2506
2507	# my $AFTER = Event::time;
2508	# warn $AFTER - $NOW;#d#
2509
2510	# if we are delayed by four ticks or more, skip them all
2511	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2512
2513	$TICK_WATCHER->at ($NEXT_TICK);
2514	$TICK_WATCHER->start;
2515	},
2516	);
2517
2518	IO::AIO::max_poll_time $TICK * 0.1;
2519
2520	undef $Coro::AIO::WATCHER;
2521	$AIO_POLL_WATCHER = Event->io (
2522	reentrant => 0,
2523	fd => IO::AIO::poll_fileno,
2524	poll => 'r',
2525	prio => 6,
2526	data => WF_AUTOCANCEL,
2527	cb => \&IO::AIO::poll_cb,
2528	);
2529
2530	$WRITE_RUNTIME_WATCHER = Event->timer (
2531	reentrant => 0,
2532	data => WF_AUTOCANCEL,
2533	after => 1,
2534	interval => 10,
2535	prio => 6, # keep it lowest so it acts like a watchdog
2536	cb => Coro::unblock_sub {
2537	write_runtime	3875	write_runtime_sync
2538	or warn "ERROR: unable to write runtime file: $!";	3876	or warn "ERROR: unable to write runtime file: $!";
		3877	};
2539	},	3878	}
2540	);	3879
		3880	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3881	$sig->send;
		3882	}
		3883	while (my $sig = shift @WAIT_FOR_TICK) {
		3884	$sig->send;
		3885	}
		3886
		3887	$LOAD = ($NOW - $TICK_START) / $TICK;
		3888	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3889
		3890	if (0) {
		3891	if ($NEXT_TICK) {
		3892	my $jitter = $TICK_START - $NEXT_TICK;
		3893	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3894	warn "jitter $JITTER\n";#d#
		3895	}
		3896	}
		3897	}
		3898
		3899	{
		3900	# configure BDB
		3901
		3902	BDB::min_parallel 8;
		3903	BDB::max_poll_reqs $TICK * 0.1;
		3904	$AnyEvent::BDB::WATCHER->priority (1);
		3905
		3906	unless ($DB_ENV) {
		3907	$DB_ENV = BDB::db_env_create;
		3908	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3909	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3910	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3911	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3912	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3913
		3914	cf::sync_job {
		3915	eval {
		3916	BDB::db_env_open
		3917	$DB_ENV,
		3918	$BDBDIR,
		3919	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3920	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3921	0666;
		3922
		3923	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3924	};
		3925
		3926	cf::cleanup "db_env_open(db): $@" if $@;
		3927	};
		3928	}
		3929
		3930	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3931	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3932	};
		3933	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3934	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3935	};
		3936	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3937	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3938	};
		3939	}
		3940
		3941	{
		3942	# configure IO::AIO
		3943
		3944	IO::AIO::min_parallel 8;
		3945	IO::AIO::max_poll_time $TICK * 0.1;
		3946	undef $AnyEvent::AIO::WATCHER;
		3947	}
		3948
		3949	my $_log_backtrace;
		3950
		3951	sub _log_backtrace {
		3952	my ($msg, @addr) = @_;
		3953
		3954	$msg =~ s/\n//;
		3955
		3956	# limit the # of concurrent backtraces
		3957	if ($_log_backtrace < 2) {
		3958	++$_log_backtrace;
		3959	my $perl_bt = Carp::longmess $msg;
		3960	async {
		3961	$Coro::current->{desc} = "abt $msg";
		3962
		3963	my @bt = fork_call {
		3964	@addr = map { sprintf "%x", $_ } @addr;
		3965	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3966	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3967	or die "addr2line: $!";
		3968
		3969	my @funcs;
		3970	my @res = <$fh>;
		3971	chomp for @res;
		3972	while (@res) {
		3973	my ($func, $line) = splice @res, 0, 2, ();
		3974	push @funcs, "[$func] $line";
		3975	}
		3976
		3977	@funcs
		3978	};
		3979
		3980	LOG llevInfo, "[ABT] $perl_bt\n";
		3981	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3982	LOG llevInfo, "[ABT] $_\n" for @bt;
		3983	--$_log_backtrace;
		3984	};
		3985	} else {
		3986	LOG llevInfo, "[ABT] $msg\n";
		3987	LOG llevInfo, "[ABT] [suppressed]\n";
		3988	}
		3989	}
		3990
		3991	# load additional modules
		3992	require "cf/$_.pm" for @EXTRA_MODULES;
		3993	cf::_connect_to_perl_2;
2541		3994
2542	END { cf::emergency_save }	3995	END { cf::emergency_save }
2543		3996
2544	1	3997	1
2545		3998

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