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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.191 by root, Tue Jan 23 01:05:18 2007 UTC vs.
Revision 1.499 by root, Sun Jan 10 17:43:46 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.4 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
		56	use BDB ();
20	use Data::Dumper;	57	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	58	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
25	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
26		64
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		80
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
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	Carp::cluck "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) = @_;
		1804
		1805	$path = "$path"; # make sure its a string
		1806
		1807	$path =~ s/\.map$//;
1180		1808
1181	# map plan:	1809	# map plan:
1182	#	1810	#
1183	# /! non-realised random map exit (special hack!)	1811	# /! non-realised random map exit (special hack!)
1184	# {... are special paths that are not being touched	1812	# {... are special paths that are not being touched
…		…
1221	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1222	return $self;	1850	return $self;
1223	}	1851	}
1224	}	1852	}
1225		1853
1226	Carp::carp "unable to resolve path '$path'.";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1227	()	1855	()
1228	}	1856	}
1229		1857
1230	sub init {	1858	sub init {
1231	my ($self) = @_;	1859	my ($self) = @_;
…		…
1246		1874
1247	# the original (read-only) location	1875	# the original (read-only) location
1248	sub load_path {	1876	sub load_path {
1249	my ($self) = @_;	1877	my ($self) = @_;
1250		1878
1251	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1879	"$MAPDIR/$self->{path}.map"
1252	}	1880	}
1253		1881
1254	# the temporary/swap location	1882	# the temporary/swap location
1255	sub save_path {	1883	sub save_path {
1256	my ($self) = @_;	1884	my ($self) = @_;
1257		1885
1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1259	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1887	"$TMPDIR/$path.map"
1260	}	1888	}
1261		1889
1262	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1263	sub uniq_path {	1891	sub uniq_path {
1264	my ($self) = @_;	1892	my ($self) = @_;
1265		1893
1266	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1267	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1895	"$UNIQUEDIR/$path"
1268	}	1896	}
1269		1897
1270	# and all this just because we cannot iterate over	1898	sub decay_objects {
1271	# all maps in C++...
1272	sub change_all_map_light {
1273	my ($change) = @_;	1899	my ($self) = @_;
1274		1900
1275	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1276	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1277	}	1904	}
1278		1905
1279	sub unlink_save {	1906	sub unlink_save {
1280	my ($self) = @_;	1907	my ($self) = @_;
1281		1908
…		…
1286		1913
1287	sub load_header_from($) {	1914	sub load_header_from($) {
1288	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1289		1916
1290	utf8::encode $path;	1917	utf8::encode $path;
1291	aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1292	or return;	1919	or return;
1293		1920
1294	$self->_load_header ($path)	1921	$self->_load_header ($f)
1295	or return;	1922	or return;
		1923
		1924	local $MAP_LOADING{$self->{path}} = $self;
		1925	$f->resolve_delayed_derefs;
1296		1926
1297	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1298		1928
1299	1	1929	1
1300	}	1930	}
…		…
1339	$self->load_header_orig	1969	$self->load_header_orig
1340	or return;	1970	or return;
1341	$self->prepare_orig;	1971	$self->prepare_orig;
1342	}	1972	}
1343		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
1344	1	1980	1
1345	}	1981	}
1346		1982
1347	sub find;	1983	sub find;
1348	sub find {	1984	sub find {
1349	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1350		1986
1351	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1352		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1353	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1354		1991
1355	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1356	my $guard = cf::lock_acquire "map_find:$path";
1357	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1358	or return;	1994	or return;
1359		1995
1360	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1361		1997
1362	$map->load_header	1998	$map->load_header
1363	or return;	1999	or return;
1364		2000
1365	if ($map->should_reset) {	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1366	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1367	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1368	$map->reset;	2006	$map->reset;
1369	undef $guard;
1370	$map = find $path	2007	return find $path;
1371	or return;
1372	}	2008	}
1373		2009
1374	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1375	}	2011	}
1376	}	2012	}
…		…
1379	sub post_load { }	2015	sub post_load { }
1380		2016
1381	sub load {	2017	sub load {
1382	my ($self) = @_;	2018	my ($self) = @_;
1383		2019
		2020	local $self->{deny_reset} = 1; # loading can take a long time
		2021
1384	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1385	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1386		2026
		2027	return unless $self->valid;
1387	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1388		2029
1389	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1390		2031
1391	$self->alloc;	2032	$self->alloc;
1392		2033
1393	$self->pre_load;	2034	$self->pre_load;
		2035	cf::cede_to_tick;
1394		2036
1395	$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)
1396	or return;	2040	or return;
1397		2041
1398	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1399	if delete $self->{load_original};	2043	if delete $self->{load_original};
1400		2044
1401	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1402	utf8::encode $uniq;	2046	utf8::encode $uniq;
1403	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1404	$self->clear_unique_items;	2049	$self->clear_unique_items;
1405	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1406	}	2053	}
1407	}	2054	}
1408		2055
1409	Coro::cede;	2056	$f->resolve_delayed_derefs;
1410		2057
		2058	cf::cede_to_tick;
1411	# now do the right thing for maps	2059	# now do the right thing for maps
1412	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1413
1414	unless ($self->{deny_activate}) {
1415	$self->decay_objects;
1416	$self->fix_auto_apply;
1417	$self->update_buttons;
1418	Coro::cede;
1419	$self->set_darkness_map;
1420	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1421	unless $self->difficulty;	2062	unless $self->difficulty;
1422	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;
1423	$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);
1424	}	2077	}
1425		2078
1426	$self->post_load;	2079	$self->post_load;
1427
1428	$self->in_memory (cf::MAP_IN_MEMORY);
1429	}	2080	}
1430		2081
1431	sub customise_for {	2082	sub customise_for {
1432	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1433		2084
1434	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1435	if $self->per_player;	2086	if $self->per_player;
1436		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1437	$self	2091	$self
1438	}	2092	}
1439		2093
1440	# 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
1441	sub load_diag {	2095	sub load_neighbours {
1442	my ($map) = @_;	2096	my ($map) = @_;
1443		2097
1444	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1445		2099
1446	for (0 .. 3) {	2100	for (0 .. 3) {
1447	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1448	or next;	2102	or next;
1449	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1450	or next;	2104	or next;
1451	$neigh->load;	2105	$neigh->load;
1452		2106
		2107	push @neigh,
1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1455	}	2110	}
1456		2111
1457	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1458	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1459	or next;	2115	or next;
1460	$neigh->load;	2116	$neigh->load;
1461	}	2117	}
1462	}	2118	}
1463		2119
…		…
1468	}	2124	}
1469		2125
1470	sub do_load_sync {	2126	sub do_load_sync {
1471	my ($map) = @_;	2127	my ($map) = @_;
1472		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1473	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1474	}	2133	}
1475		2134
1476	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1477	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1478		2137
1479	sub find_async {	2138	sub find_async {
1480	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1481		2140
1482	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1483		2142
1484	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1485	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1486	}	2145	}
1487		2146
1488	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1489	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1490	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1491	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1492	my $map = find $path	2154	if (my $map = find $k) {
1493	or next;
1494	$map->load;	2155	$map->load if $v;
		2156	}
1495		2157
1496	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1497	}	2159	}
1498	}	2160	}
1499	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1500	};	2162	};
1501	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1504	}	2166	}
1505		2167
1506	sub save {	2168	sub save {
1507	my ($self) = @_;	2169	my ($self) = @_;
1508		2170
1509	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1510		2172
1511	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1512		2174
1513	return unless $self->dirty;	2175	return unless $self->dirty;
1514		2176
…		…
1520	return if $self->{deny_save};	2182	return if $self->{deny_save};
1521		2183
1522	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1523		2185
1524	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1525	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1526	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1527		2192
1528	if ($uniq) {	2193	if ($uniq) {
1529	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1530	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1531	} else {	2196	} else {
…		…
1537	my ($self) = @_;	2202	my ($self) = @_;
1538		2203
1539	# save first because save cedes	2204	# save first because save cedes
1540	$self->save;	2205	$self->save;
1541		2206
1542	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1543		2208
1544	return if $self->players;	2209	return if $self->players;
1545	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1546	return if $self->{deny_save};	2211	return if $self->{deny_save};
1547		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1548	$self->clear;	2217	$self->clear;
1549	$self->in_memory (cf::MAP_SWAPPED);
1550	}	2218	}
1551		2219
1552	sub reset_at {	2220	sub reset_at {
1553	my ($self) = @_;	2221	my ($self) = @_;
1554		2222
1555	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1556	return 1e99 if $self->isa ("ext::map_per_player");#d#
1557	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1558		2225
1559	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1560	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;
1561		2228
…		…
1572	my ($self) = @_;	2239	my ($self) = @_;
1573		2240
1574	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1575		2242
1576	return if $self->players;	2243	return if $self->players;
1577	return if $self->isa ("ext::map_per_player");#d#
1578		2244
1579	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	}
1580		2256
1581	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1582		2258
1583	$self->in_memory (cf::MAP_SWAPPED);	2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1584	$self->clear;	2261	$self->clear;
1585
1586	$_->clear_links_to ($self) for values %cf::MAP;
1587		2262
1588	$self->unlink_save;	2263	$self->unlink_save;
1589	$self->destroy;	2264	$self->destroy;
1590	}	2265	}
1591		2266
1592	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1593		2268
1594	sub nuke {	2269	sub nuke {
1595	my ($self) = @_;	2270	my ($self) = @_;
1596		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1597	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1598		2276
1599	$self->unlink_save;	2277	$self->unlink_save;
1600		2278
1601	bless $self, "cf::map";	2279	bless $self, "cf::map";
1602	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1603	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1604	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1605	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1606		2284
1607	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1608		2287
1609	$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	]
1610	}	2325	}
1611		2326
1612	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1613		2328
1614	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1615	instantiated unique items. May block.	2330	instantiated unique items. May block.
1616		2331
1617	=cut	2332	=cut
1618		2333
1619	sub unique_maps() {	2334	sub unique_maps() {
1620	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2335	[
1621	or return;	2336	map {
1622
1623	my @paths;
1624
1625	for (@$files) {
1626	utf8::decode $_;	2337	utf8::decode $_;
1627	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1628	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2340	? ()
		2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
		2343	]
		2344	}
1629		2345
		2346	=item cf::map::static_maps
		2347
		2348	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2349	file in the shared directory excluding F</styles> and F</editor>). May
		2350	block.
		2351
		2352	=cut
		2353
		2354	sub static_maps() {
		2355	my @dirs = "";
		2356	my @maps;
		2357
		2358	while (@dirs) {
		2359	my $dir = shift @dirs;
		2360
		2361	next if $dir eq "/styles" || $dir eq "/editor";
		2362
		2363	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2364	or return;
		2365
		2366	for (@$files) {
1630	s/\.map$//;	2367	s/\.map$// or next;
1631	push @paths, $_;	2368	utf8::decode $_;
1632	}	2369	push @maps, "$dir/$_";
		2370	}
1633		2371
1634	\@paths	2372	push @dirs, map "$dir/$_", @$dirs;
1635	}	2373	}
1636		2374
1637	package cf;	2375	\@maps
		2376	}
1638		2377
1639	=back	2378	=back
1640		2379
1641	=head3 cf::object	2380	=head3 cf::object
1642		2381
…		…
1646		2385
1647	=over 4	2386	=over 4
1648		2387
1649	=item $ob->inv_recursive	2388	=item $ob->inv_recursive
1650		2389
1651	Returns the inventory of the object _and_ their inventories, recursively.	2390	Returns the inventory of the object I<and> their inventories, recursively,
		2391	but I<not> the object itself.
1652		2392
1653	=cut	2393	=cut
1654		2394
1655	sub inv_recursive_;	2395	sub inv_recursive_;
1656	sub inv_recursive_ {	2396	sub inv_recursive_ {
…		…
1659		2399
1660	sub inv_recursive {	2400	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2401	inv_recursive_ inv $_[0]
1662	}	2402	}
1663		2403
		2404	=item $ref = $ob->ref
		2405
		2406	Creates and returns a persistent reference to an object that can be stored as a string.
		2407
		2408	=item $ob = cf::object::deref ($refstring)
		2409
		2410	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2411	even if the object actually exists. May block.
		2412
		2413	=cut
		2414
		2415	sub deref {
		2416	my ($ref) = @_;
		2417
		2418	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2419	my ($uuid, $name) = ($1, $2);
		2420	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2421	or return;
		2422	$pl->ob->uuid eq $uuid
		2423	or return;
		2424
		2425	$pl->ob
		2426	} else {
		2427	warn "$ref: cannot resolve object reference\n";
		2428	undef
		2429	}
		2430	}
		2431
1664	package cf;	2432	package cf;
1665		2433
1666	=back	2434	=back
1667		2435
1668	=head3 cf::object::player	2436	=head3 cf::object::player
…		…
1674	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2442	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1675	can be C<undef>. Does the right thing when the player is currently in a	2443	can be C<undef>. Does the right thing when the player is currently in a
1676	dialogue with the given NPC character.	2444	dialogue with the given NPC character.
1677		2445
1678	=cut	2446	=cut
		2447
		2448	our $SAY_CHANNEL = {
		2449	id => "say",
		2450	title => "Map",
		2451	reply => "say ",
		2452	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2453	};
		2454
		2455	our $CHAT_CHANNEL = {
		2456	id => "chat",
		2457	title => "Chat",
		2458	reply => "chat ",
		2459	tooltip => "Player chat and shouts, global to the server.",
		2460	};
1679		2461
1680	# rough implementation of a future "reply" method that works	2462	# rough implementation of a future "reply" method that works
1681	# with dialog boxes.	2463	# with dialog boxes.
1682	#TODO: the first argument must go, split into a $npc->reply_to ( method	2464	#TODO: the first argument must go, split into a $npc->reply_to ( method
1683	sub cf::object::player::reply($$$;$) {	2465	sub cf::object::player::reply($$$;$) {
…		…
1685		2467
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2468	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2469
1688	if ($self->{record_replies}) {	2470	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2471	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2472
1690	} else {	2473	} else {
		2474	my $pl = $self->contr;
		2475
		2476	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2477	my $dialog = $pl->{npc_dialog};
		2478	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2479
		2480	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2481	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2482	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2483	}
1693	}	2484	}
		2485	}
		2486
		2487	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2488
		2489	=cut
		2490
		2491	sub cf::object::send_msg {
		2492	my $pl = shift->contr
		2493	or return;
		2494	$pl->send_msg (@_);
1694	}	2495	}
1695		2496
1696	=item $player_object->may ("access")	2497	=item $player_object->may ("access")
1697		2498
1698	Returns wether the given player is authorized to access resource "access"	2499	Returns wether the given player is authorized to access resource "access"
…		…
1711		2512
1712	=item $player_object->enter_link	2513	=item $player_object->enter_link
1713		2514
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2515	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2516
1716	The player should be reasonably safe there for short amounts of time. You	2517	The player should be reasonably safe there for short amounts of time (e.g.
1717	I<MUST> call C<leave_link> as soon as possible, though.	2518	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2519	though, as the palyer cannot control the character while it is on the link
		2520	map.
1718		2521
1719	Will never block.	2522	Will never block.
1720		2523
1721	=item $player_object->leave_link ($map, $x, $y)	2524	=item $player_object->leave_link ($map, $x, $y)
1722		2525
…		…
1730	=cut	2533	=cut
1731		2534
1732	sub link_map {	2535	sub link_map {
1733	unless ($LINK_MAP) {	2536	unless ($LINK_MAP) {
1734	$LINK_MAP = cf::map::find "{link}"	2537	$LINK_MAP = cf::map::find "{link}"
1735	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2538	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1736	$LINK_MAP->load;	2539	$LINK_MAP->load;
1737	}	2540	}
1738		2541
1739	$LINK_MAP	2542	$LINK_MAP
1740	}	2543	}
…		…
1745	$self->deactivate_recursive;	2548	$self->deactivate_recursive;
1746		2549
1747	return if UNIVERSAL::isa $self->map, "ext::map_link";	2550	return if UNIVERSAL::isa $self->map, "ext::map_link";
1748		2551
1749	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2552	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1750	if $self->map;	2553	if $self->map && $self->map->{path} ne "{link}";
1751		2554
1752	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2555	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1753	}	2556	}
1754		2557
1755	sub cf::object::player::leave_link {	2558	sub cf::object::player::leave_link {
1756	my ($self, $map, $x, $y) = @_;	2559	my ($self, $map, $x, $y) = @_;
		2560
		2561	return unless $self->contr->active;
1757		2562
1758	my $link_pos = delete $self->{_link_pos};	2563	my $link_pos = delete $self->{_link_pos};
1759		2564
1760	unless ($map) {	2565	unless ($map) {
1761	# restore original map position	2566	# restore original map position
…		…
1772	($x, $y) = (-1, -1)	2577	($x, $y) = (-1, -1)
1773	unless (defined $x) && (defined $y);	2578	unless (defined $x) && (defined $y);
1774		2579
1775	# use -1 or undef as default coordinates, not 0, 0	2580	# use -1 or undef as default coordinates, not 0, 0
1776	($x, $y) = ($map->enter_x, $map->enter_y)	2581	($x, $y) = ($map->enter_x, $map->enter_y)
1777	if $x <=0 && $y <= 0;	2582	if $x <= 0 && $y <= 0;
1778		2583
1779	$map->load;	2584	$map->load;
1780	$map->load_diag;	2585	$map->load_neighbours;
1781		2586
1782	return unless $self->contr->active;	2587	return unless $self->contr->active;
		2588
		2589	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2590	$self->enter_map ($map, $x, $y);
		2591
		2592	# only activate afterwards, to support waiting in hooks
1783	$self->activate_recursive;	2593	$self->activate_recursive;
1784	$self->enter_map ($map, $x, $y);
1785	}	2594	}
1786		2595
1787	cf::player->attach (	2596	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1788	on_logout => sub {
1789	my ($pl) = @_;
1790		2597
1791	# abort map switching before logout	2598	Moves the player to the given map-path and coordinates by first freezing
1792	if ($pl->ob->{_link_pos}) {	2599	her, loading and preparing them map, calling the provided $check callback
1793	cf::sync_job {	2600	that has to return the map if sucecssful, and then unfreezes the player on
1794	$pl->ob->leave_link	2601	the new (success) or old (failed) map position. In either case, $done will
1795	};	2602	be called at the end of this process.
1796	}
1797	},
1798	on_login => sub {
1799	my ($pl) = @_;
1800		2603
1801	# try to abort aborted map switching on player login :)	2604	Note that $check will be called with a potentially non-loaded map, so if
1802	# should happen only on crashes	2605	it needs a loaded map it has to call C<< ->load >>.
1803	if ($pl->ob->{_link_pos}) {
1804	$pl->ob->enter_link;
1805	(async {
1806	# we need this sleep as the login has a concurrent enter_exit running
1807	# and this sleep increases chances of the player not ending up in scorn
1808	$pl->ob->reply (undef,
1809	"There was an internal problem at your last logout, "
1810	. "the server will try to bring you to your intended destination in a second.",
1811	cf::NDI_RED);
1812	Coro::Timer::sleep 1;
1813	$pl->ob->leave_link;
1814	})->prio (2);
1815	}
1816	},
1817	);
1818		2606
1819	=item $player_object->goto ($path, $x, $y)
1820
1821	=cut	2607	=cut
		2608
		2609	our $GOTOGEN;
1822		2610
1823	sub cf::object::player::goto {	2611	sub cf::object::player::goto {
1824	my ($self, $path, $x, $y) = @_;	2612	my ($self, $path, $x, $y, $check, $done) = @_;
		2613
		2614	# do generation counting so two concurrent goto's will be executed in-order
		2615	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1825		2616
1826	$self->enter_link;	2617	$self->enter_link;
1827		2618
1828	(async {	2619	(async {
1829	my $map = cf::map::find $path;	2620	$Coro::current->{desc} = "player::goto $path $x $y";
		2621
		2622	# *tag paths override both path and x|y
		2623	if ($path =~ /^\*(.*)$/) {
		2624	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2625	my $ob = $obs[rand @obs];
		2626
		2627	# see if we actually can go there
		2628	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2629	$ob = $obs[rand @obs];
		2630	} else {
		2631	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2632	}
		2633	# else put us there anyways for now #d#
		2634
		2635	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2636	} else {
		2637	($path, $x, $y) = (undef, undef, undef);
		2638	}
		2639	}
		2640
		2641	my $map = eval {
		2642	my $map = defined $path ? cf::map::find $path : undef;
		2643
		2644	if ($map) {
1830	$map = $map->customise_for ($self) if $map;	2645	$map = $map->customise_for ($self);
1831		2646	$map = $check->($map) if $check && $map;
1832	# warn "entering ", $map->path, " at ($x, $y)\n"	2647	} else {
1833	# if $map;
1834
1835	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2648	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2649	}
1836		2650
		2651	$map
		2652	};
		2653
		2654	if ($@) {
		2655	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2656	LOG llevError | logBacktrace, Carp::longmess $@;
		2657	}
		2658
		2659	if ($gen == $self->{_goto_generation}) {
		2660	delete $self->{_goto_generation};
1837	$self->leave_link ($map, $x, $y);	2661	$self->leave_link ($map, $x, $y);
		2662	}
		2663
		2664	$done->() if $done;
1838	})->prio (1);	2665	})->prio (1);
1839	}	2666	}
1840		2667
1841	=item $player_object->enter_exit ($exit_object)	2668	=item $player_object->enter_exit ($exit_object)
1842		2669
…		…
1862	}	2689	}
1863		2690
1864	sub prepare_random_map {	2691	sub prepare_random_map {
1865	my ($exit) = @_;	2692	my ($exit) = @_;
1866		2693
1867	my $guard = cf::lock_acquire "exit_prepare:$exit";
1868
1869	# all this does is basically replace the /! path by	2694	# all this does is basically replace the /! path by
1870	# a new random map path (?random/...) with a seed	2695	# a new random map path (?random/...) with a seed
1871	# that depends on the exit object	2696	# that depends on the exit object
1872		2697
1873	my $rmp = parse_random_map_params $exit->msg;	2698	my $rmp = parse_random_map_params $exit->msg;
1874		2699
1875	if ($exit->map) {	2700	if ($exit->map) {
1876	$rmp->{region} = $exit->map->region_name;	2701	$rmp->{region} = $exit->region->name;
1877	$rmp->{origin_map} = $exit->map->path;	2702	$rmp->{origin_map} = $exit->map->path;
1878	$rmp->{origin_x} = $exit->x;	2703	$rmp->{origin_x} = $exit->x;
1879	$rmp->{origin_y} = $exit->y;	2704	$rmp->{origin_y} = $exit->y;
		2705
		2706	$exit->map->touch;
1880	}	2707	}
1881		2708
1882	$rmp->{random_seed} ||= $exit->random_seed;	2709	$rmp->{random_seed} ||= $exit->random_seed;
1883		2710
1884	my $data = cf::to_json $rmp;	2711	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1885	my $md5 = Digest::MD5::md5_hex $data;	2712	my $md5 = Digest::MD5::md5_hex $data;
1886	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2713	my $meta = "$RANDOMDIR/$md5.meta";
1887		2714
1888	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2715	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1889	aio_write $fh, 0, (length $data), $data, 0;	2716	aio_write $fh, 0, (length $data), $data, 0;
1890	undef $fh;	2717	undef $fh;
1891	aio_rename "$meta~", $meta;	2718	aio_rename "$meta~", $meta;
1892		2719
		2720	my $slaying = "?random/$md5";
		2721
		2722	if ($exit->valid) {
1893	$exit->slaying ("?random/$md5");	2723	$exit->slaying ("?random/$md5");
1894	$exit->msg (undef);	2724	$exit->msg (undef);
		2725	}
1895	}	2726	}
1896	}	2727	}
1897		2728
1898	sub cf::object::player::enter_exit {	2729	sub cf::object::player::enter_exit {
1899	my ($self, $exit) = @_;	2730	my ($self, $exit) = @_;
…		…
1901	return unless $self->type == cf::PLAYER;	2732	return unless $self->type == cf::PLAYER;
1902		2733
1903	$self->enter_link;	2734	$self->enter_link;
1904		2735
1905	(async {	2736	(async {
1906	$self->deactivate_recursive; # just to be sure	2737	$Coro::current->{desc} = "enter_exit";
		2738
1907	unless (eval {	2739	unless (eval {
		2740	$self->deactivate_recursive; # just to be sure
		2741
		2742	# random map handling
		2743	{
		2744	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2745
1908	prepare_random_map $exit	2746	prepare_random_map $exit
1909	if $exit->slaying eq "/!";	2747	if $exit->slaying eq "/!";
		2748	}
1910		2749
1911	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2750	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1912	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2751	my $x = $exit->stats->hp;
		2752	my $y = $exit->stats->sp;
1913		2753
		2754	$self->goto ($map, $x, $y);
		2755
		2756	# if exit is damned, update players death & WoR home-position
		2757	$self->contr->savebed ($map, $x, $y)
		2758	if $exit->flag (cf::FLAG_DAMNED);
		2759
1914	1;	2760	1
1915	}) {	2761	}) {
1916	$self->message ("Something went wrong deep within the crossfire server. "	2762	$self->message ("Something went wrong deep within the deliantra server. "
1917	. "I'll try to bring you back to the map you were before. "	2763	. "I'll try to bring you back to the map you were before. "
1918	. "Please report this to the dungeon master!",	2764	. "Please report this to the dungeon master!",
1919	cf::NDI_UNIQUE | cf::NDI_RED);	2765	cf::NDI_UNIQUE | cf::NDI_RED);
1920		2766
1921	warn "ERROR in enter_exit: $@";	2767	warn "ERROR in enter_exit: $@";
1922	$self->leave_link;	2768	$self->leave_link;
1923	}	2769	}
1924	})->prio (1);	2770	})->prio (1);
…		…
1937		2783
1938	sub cf::client::send_drawinfo {	2784	sub cf::client::send_drawinfo {
1939	my ($self, $text, $flags) = @_;	2785	my ($self, $text, $flags) = @_;
1940		2786
1941	utf8::encode $text;	2787	utf8::encode $text;
1942	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2788	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1943	}	2789	}
1944		2790
		2791	=item $client->send_big_packet ($pkt)
		2792
		2793	Like C<send_packet>, but tries to compress large packets, and fragments
		2794	them as required.
		2795
		2796	=cut
		2797
		2798	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2799
		2800	sub cf::client::send_big_packet {
		2801	my ($self, $pkt) = @_;
		2802
		2803	# try lzf for large packets
		2804	$pkt = "lzf " . Compress::LZF::compress $pkt
		2805	if 1024 <= length $pkt and $self->{can_lzf};
		2806
		2807	# split very large packets
		2808	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2809	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2810	$pkt = "frag";
		2811	}
		2812
		2813	$self->send_packet ($pkt);
		2814	}
		2815
		2816	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2817
		2818	Send a drawinfo or msg packet to the client, formatting the msg for the
		2819	client if neccessary. C<$type> should be a string identifying the type of
		2820	the message, with C<log> being the default. If C<$color> is negative, suppress
		2821	the message unless the client supports the msg packet.
		2822
		2823	=cut
		2824
		2825	# non-persistent channels (usually the info channel)
		2826	our %CHANNEL = (
		2827	"c/motd" => {
		2828	id => "infobox",
		2829	title => "MOTD",
		2830	reply => undef,
		2831	tooltip => "The message of the day",
		2832	},
		2833	"c/identify" => {
		2834	id => "infobox",
		2835	title => "Identify",
		2836	reply => undef,
		2837	tooltip => "Items recently identified",
		2838	},
		2839	"c/examine" => {
		2840	id => "infobox",
		2841	title => "Examine",
		2842	reply => undef,
		2843	tooltip => "Signs and other items you examined",
		2844	},
		2845	"c/shopinfo" => {
		2846	id => "infobox",
		2847	title => "Shop Info",
		2848	reply => undef,
		2849	tooltip => "What your bargaining skill tells you about the shop",
		2850	},
		2851	"c/book" => {
		2852	id => "infobox",
		2853	title => "Book",
		2854	reply => undef,
		2855	tooltip => "The contents of a note or book",
		2856	},
		2857	"c/lookat" => {
		2858	id => "infobox",
		2859	title => "Look",
		2860	reply => undef,
		2861	tooltip => "What you saw there",
		2862	},
		2863	"c/who" => {
		2864	id => "infobox",
		2865	title => "Players",
		2866	reply => undef,
		2867	tooltip => "Shows players who are currently online",
		2868	},
		2869	"c/body" => {
		2870	id => "infobox",
		2871	title => "Body Parts",
		2872	reply => undef,
		2873	tooltip => "Shows which body parts you posess and are available",
		2874	},
		2875	"c/statistics" => {
		2876	id => "infobox",
		2877	title => "Statistics",
		2878	reply => undef,
		2879	tooltip => "Shows your primary statistics",
		2880	},
		2881	"c/skills" => {
		2882	id => "infobox",
		2883	title => "Skills",
		2884	reply => undef,
		2885	tooltip => "Shows your experience per skill and item power",
		2886	},
		2887	"c/shopitems" => {
		2888	id => "infobox",
		2889	title => "Shop Items",
		2890	reply => undef,
		2891	tooltip => "Shows the items currently for sale in this shop",
		2892	},
		2893	"c/resistances" => {
		2894	id => "infobox",
		2895	title => "Resistances",
		2896	reply => undef,
		2897	tooltip => "Shows your resistances",
		2898	},
		2899	"c/pets" => {
		2900	id => "infobox",
		2901	title => "Pets",
		2902	reply => undef,
		2903	tooltip => "Shows information abotu your pets/a specific pet",
		2904	},
		2905	"c/perceiveself" => {
		2906	id => "infobox",
		2907	title => "Perceive Self",
		2908	reply => undef,
		2909	tooltip => "You gained detailed knowledge about yourself",
		2910	},
		2911	"c/uptime" => {
		2912	id => "infobox",
		2913	title => "Uptime",
		2914	reply => undef,
		2915	tooltip => "How long the server has been running since last restart",
		2916	},
		2917	"c/mapinfo" => {
		2918	id => "infobox",
		2919	title => "Map Info",
		2920	reply => undef,
		2921	tooltip => "Information related to the maps",
		2922	},
		2923	"c/party" => {
		2924	id => "party",
		2925	title => "Party",
		2926	reply => "gsay ",
		2927	tooltip => "Messages and chat related to your party",
		2928	},
		2929	"c/death" => {
		2930	id => "death",
		2931	title => "Death",
		2932	reply => undef,
		2933	tooltip => "Reason for and more info about your most recent death",
		2934	},
		2935	"c/say" => $SAY_CHANNEL,
		2936	"c/chat" => $CHAT_CHANNEL,
		2937	);
		2938
		2939	sub cf::client::send_msg {
		2940	my ($self, $channel, $msg, $color, @extra) = @_;
		2941
		2942	$msg = $self->pl->expand_cfpod ($msg)
		2943	unless $color & cf::NDI_VERBATIM;
		2944
		2945	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2946
		2947	# check predefined channels, for the benefit of C
		2948	if ($CHANNEL{$channel}) {
		2949	$channel = $CHANNEL{$channel};
		2950
		2951	$self->ext_msg (channel_info => $channel);
		2952	$channel = $channel->{id};
		2953
		2954	} elsif (ref $channel) {
		2955	# send meta info to client, if not yet sent
		2956	unless (exists $self->{channel}{$channel->{id}}) {
		2957	$self->{channel}{$channel->{id}} = $channel;
		2958	$self->ext_msg (channel_info => $channel);
		2959	}
		2960
		2961	$channel = $channel->{id};
		2962	}
		2963
		2964	return unless @extra || length $msg;
		2965
		2966	# default colour, mask it out
		2967	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2968	if $color & cf::NDI_DEF;
		2969
		2970	my $pkt = "msg "
		2971	. $self->{json_coder}->encode (
		2972	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2973	);
		2974
		2975	$self->send_big_packet ($pkt);
		2976	}
		2977
		2978	=item $client->ext_msg ($type, @msg)
		2979
		2980	Sends an ext event to the client.
		2981
		2982	=cut
		2983
		2984	sub cf::client::ext_msg($$@) {
		2985	my ($self, $type, @msg) = @_;
		2986
		2987	if ($self->extcmd == 2) {
		2988	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2989	} elsif ($self->extcmd == 1) { # TODO: remove
		2990	push @msg, msgtype => "event_$type";
		2991	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2992	}
		2993	}
		2994
		2995	=item $client->ext_reply ($msgid, @msg)
		2996
		2997	Sends an ext reply to the client.
		2998
		2999	=cut
		3000
		3001	sub cf::client::ext_reply($$@) {
		3002	my ($self, $id, @msg) = @_;
		3003
		3004	if ($self->extcmd == 2) {
		3005	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3006	} elsif ($self->extcmd == 1) {
		3007	#TODO: version 1, remove
		3008	unshift @msg, msgtype => "reply", msgid => $id;
		3009	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3010	}
		3011	}
1945		3012
1946	=item $success = $client->query ($flags, "text", \&cb)	3013	=item $success = $client->query ($flags, "text", \&cb)
1947		3014
1948	Queues a query to the client, calling the given callback with	3015	Queues a query to the client, calling the given callback with
1949	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3016	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1950	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3017	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1951		3018
1952	Queries can fail, so check the return code. Or don't, as queries will become	3019	Queries can fail, so check the return code. Or don't, as queries will
1953	reliable at some point in the future.	3020	become reliable at some point in the future.
1954		3021
1955	=cut	3022	=cut
1956		3023
1957	sub cf::client::query {	3024	sub cf::client::query {
1958	my ($self, $flags, $text, $cb) = @_;	3025	my ($self, $flags, $text, $cb) = @_;
…		…
1966	utf8::encode $text;	3033	utf8::encode $text;
1967	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3034	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1968		3035
1969	$self->send_packet ($self->{query_queue}[0][0])	3036	$self->send_packet ($self->{query_queue}[0][0])
1970	if @{ $self->{query_queue} } == 1;	3037	if @{ $self->{query_queue} } == 1;
		3038
		3039	1
1971	}	3040	}
1972		3041
1973	cf::client->attach (	3042	cf::client->attach (
		3043	on_connect => sub {
		3044	my ($ns) = @_;
		3045
		3046	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3047	},
1974	on_reply => sub {	3048	on_reply => sub {
1975	my ($ns, $msg) = @_;	3049	my ($ns, $msg) = @_;
1976		3050
1977	# this weird shuffling is so that direct followup queries	3051	# this weird shuffling is so that direct followup queries
1978	# get handled first	3052	# get handled first
1979	my $queue = delete $ns->{query_queue}	3053	my $queue = delete $ns->{query_queue}
1980	or return; # be conservative, not sure how that can happen, but we saw a crash here	3054	or return; # be conservative, not sure how that can happen, but we saw a crash here
1981		3055
1982	(shift @$queue)->[1]->($msg);	3056	(shift @$queue)->[1]->($msg);
		3057	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1983		3058
1984	push @{ $ns->{query_queue} }, @$queue;	3059	push @{ $ns->{query_queue} }, @$queue;
1985		3060
1986	if (@{ $ns->{query_queue} } == @$queue) {	3061	if (@{ $ns->{query_queue} } == @$queue) {
1987	if (@$queue) {	3062	if (@$queue) {
…		…
1989	} else {	3064	} else {
1990	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3065	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1991	}	3066	}
1992	}	3067	}
1993	},	3068	},
		3069	on_exticmd => sub {
		3070	my ($ns, $buf) = @_;
		3071
		3072	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3073
		3074	if (ref $msg) {
		3075	my ($type, $reply, @payload) =
		3076	"ARRAY" eq ref $msg
		3077	? @$msg
		3078	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3079
		3080	my @reply;
		3081
		3082	if (my $cb = $EXTICMD{$type}) {
		3083	@reply = $cb->($ns, @payload);
		3084	}
		3085
		3086	$ns->ext_reply ($reply, @reply)
		3087	if $reply;
		3088
		3089	} else {
		3090	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3091	}
		3092
		3093	cf::override;
		3094	},
1994	);	3095	);
1995		3096
1996	=item $client->async (\&cb)	3097	=item $client->async (\&cb)
1997		3098
1998	Create a new coroutine, running the specified callback. The coroutine will	3099	Create a new coroutine, running the specified callback. The coroutine will
…		…
2039	our $safe = new Safe "safe";	3140	our $safe = new Safe "safe";
2040	our $safe_hole = new Safe::Hole;	3141	our $safe_hole = new Safe::Hole;
2041		3142
2042	$SIG{FPE} = 'IGNORE';	3143	$SIG{FPE} = 'IGNORE';
2043		3144
2044	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3145	$safe->permit_only (Opcode::opset qw(
		3146	:base_core :base_mem :base_orig :base_math :base_loop
		3147	grepstart grepwhile mapstart mapwhile
		3148	sort time
		3149	));
2045		3150
2046	# here we export the classes and methods available to script code	3151	# here we export the classes and methods available to script code
2047		3152
2048	=pod	3153	=pod
2049		3154
2050	The following fucntions and emthods are available within a safe environment:	3155	The following functions and methods are available within a safe environment:
2051		3156
2052	cf::object contr pay_amount pay_player map	3157	cf::object
		3158	contr pay_amount pay_player map x y force_find force_add destroy
		3159	insert remove name archname title slaying race decrease split
		3160	value
		3161
2053	cf::object::player player	3162	cf::object::player
2054	cf::player peaceful	3163	player
2055	cf::map trigger	3164
		3165	cf::player
		3166	peaceful
		3167
		3168	cf::map
		3169	trigger
2056		3170
2057	=cut	3171	=cut
2058		3172
2059	for (	3173	for (
2060	["cf::object" => qw(contr pay_amount pay_player map)],	3174	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3175	insert remove inv nrof name archname title slaying race
		3176	decrease split destroy change_exp value msg lore send_msg)],
2061	["cf::object::player" => qw(player)],	3177	["cf::object::player" => qw(player)],
2062	["cf::player" => qw(peaceful)],	3178	["cf::player" => qw(peaceful send_msg)],
2063	["cf::map" => qw(trigger)],	3179	["cf::map" => qw(trigger)],
2064	) {	3180	) {
2065	no strict 'refs';	3181	no strict 'refs';
2066	my ($pkg, @funs) = @$_;	3182	my ($pkg, @funs) = @$_;
2067	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3183	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2085		3201
2086	my $qcode = $code;	3202	my $qcode = $code;
2087	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3203	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2088	$qcode =~ s/\n/\\n/g;	3204	$qcode =~ s/\n/\\n/g;
2089		3205
		3206	%vars = (_dummy => 0) unless %vars;
		3207
		3208	my @res;
2090	local $_;	3209	local $_;
2091	local @safe::cf::_safe_eval_args = values %vars;
2092		3210
2093	my $eval =	3211	my $eval =
2094	"do {\n"	3212	"do {\n"
2095	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3213	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2096	. "#line 0 \"{$qcode}\"\n"	3214	. "#line 0 \"{$qcode}\"\n"
2097	. $code	3215	. $code
2098	. "\n}"	3216	. "\n}"
2099	;	3217	;
2100		3218
		3219	if ($CFG{safe_eval}) {
2101	sub_generation_inc;	3220	sub_generation_inc;
		3221	local @safe::cf::_safe_eval_args = values %vars;
2102	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3222	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2103	sub_generation_inc;	3223	sub_generation_inc;
		3224	} else {
		3225	local @cf::_safe_eval_args = values %vars;
		3226	@res = wantarray ? eval eval : scalar eval $eval;
		3227	}
2104		3228
2105	if ($@) {	3229	if ($@) {
2106	warn "$@";	3230	warn "$@";
2107	warn "while executing safe code '$code'\n";	3231	warn "while executing safe code '$code'\n";
2108	warn "with arguments " . (join " ", %vars) . "\n";	3232	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2136	=back	3260	=back
2137		3261
2138	=cut	3262	=cut
2139		3263
2140	#############################################################################	3264	#############################################################################
		3265	# the server's init and main functions
2141		3266
2142	=head2 EXTENSION DATABASE SUPPORT	3267	sub load_facedata($) {
		3268	my ($path) = @_;
2143		3269
2144	Crossfire maintains a very simple database for extension use. It can	3270	# HACK to clear player env face cache, we need some signal framework
2145	currently store anything that can be serialised using Storable, which	3271	# for this (global event?)
2146	excludes objects.	3272	%ext::player_env::MUSIC_FACE_CACHE = ();
2147		3273
2148	The parameter C<$family> should best start with the name of the extension	3274	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2149	using it, it should be unique.
2150		3275
2151	=over 4	3276	warn "loading facedata from $path\n";
2152		3277
2153	=item $hashref = cf::db_get $family	3278	my $facedata;
		3279	0 < aio_load $path, $facedata
		3280	or die "$path: $!";
2154		3281
2155	Return a hashref for use by the extension C<$family>, which can be	3282	$facedata = Coro::Storable::thaw $facedata;
2156	modified. After modifications, you have to call C<cf::db_dirty> or
2157	C<cf::db_sync>.
2158		3283
2159	=item $value = cf::db_get $family => $key	3284	$facedata->{version} == 2
		3285	or cf::cleanup "$path: version mismatch, cannot proceed.";
2160		3286
2161	Returns a single value from the database	3287	# patch in the exptable
2162		3288	$facedata->{resource}{"res/exp_table"} = {
2163	=item cf::db_put $family => $hashref	3289	type => FT_RSRC,
2164		3290	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2165	Stores the given family hashref into the database. Updates are delayed, if
2166	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2167
2168	=item cf::db_put $family => $key => $value
2169
2170	Stores the given C<$value> in the family hash. Updates are delayed, if you
2171	want the data to be synced to disk immediately, use C<cf::db_sync>.
2172
2173	=item cf::db_dirty
2174
2175	Marks the database as dirty, to be updated at a later time.
2176
2177	=item cf::db_sync
2178
2179	Immediately write the database to disk I<if it is dirty>.
2180
2181	=cut
2182
2183	our $DB;
2184
2185	{
2186	my $path = cf::localdir . "/database.pst";
2187
2188	sub db_load() {
2189	$DB = stat $path ? Storable::retrieve $path : { };
2190	}	3291	};
		3292	cf::cede_to_tick;
2191		3293
2192	my $pid;
2193
2194	sub db_save() {
2195	waitpid $pid, 0 if $pid;
2196	if (0 == ($pid = fork)) {
2197	$DB->{_meta}{version} = 1;
2198	Storable::nstore $DB, "$path~";
2199	rename "$path~", $path;
2200	cf::_exit 0 if defined $pid;
2201	}
2202	}	3294	{
		3295	my $faces = $facedata->{faceinfo};
2203		3296
2204	my $dirty;	3297	while (my ($face, $info) = each %$faces) {
		3298	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2205		3299
2206	sub db_sync() {	3300	cf::face::set_visibility $idx, $info->{visibility};
2207	db_save if $dirty;	3301	cf::face::set_magicmap $idx, $info->{magicmap};
2208	undef $dirty;	3302	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2209	}	3303	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2210		3304
2211	my $idle = Event->idle (	3305	cf::cede_to_tick;
2212	reentrant => 0,
2213	min => 10,
2214	max => 20,
2215	repeat => 0,
2216	data => WF_AUTOCANCEL,
2217	cb => \&db_sync,
2218	);
2219
2220	sub db_dirty() {
2221	$dirty = 1;
2222	$idle->start;
2223	}
2224
2225	sub db_get($;$) {
2226	@_ >= 2
2227	? $DB->{$_[0]}{$_[1]}
2228	: ($DB->{$_[0]} ||= { })
2229	}
2230
2231	sub db_put($$;$) {
2232	if (@_ >= 3) {
2233	$DB->{$_[0]}{$_[1]} = $_[2];
2234	} else {
2235	$DB->{$_[0]} = $_[1];
2236	}
2237	db_dirty;
2238	}
2239
2240	cf::global->attach (
2241	prio => 10000,
2242	on_cleanup => sub {
2243	db_sync;
2244	},	3306	}
2245	);
2246	}
2247		3307
2248	#############################################################################	3308	while (my ($face, $info) = each %$faces) {
2249	# the server's main()	3309	next unless $info->{smooth};
2250		3310
2251	sub cfg_load {	3311	my $idx = cf::face::find $face
		3312	or next;
		3313
		3314	if (my $smooth = cf::face::find $info->{smooth}) {
		3315	cf::face::set_smooth $idx, $smooth;
		3316	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3317	} else {
		3318	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3319	}
		3320
		3321	cf::cede_to_tick;
		3322	}
		3323	}
		3324
		3325	{
		3326	my $anims = $facedata->{animinfo};
		3327
		3328	while (my ($anim, $info) = each %$anims) {
		3329	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3330	cf::cede_to_tick;
		3331	}
		3332
		3333	cf::anim::invalidate_all; # d'oh
		3334	}
		3335
		3336	{
		3337	my $res = $facedata->{resource};
		3338
		3339	while (my ($name, $info) = each %$res) {
		3340	if (defined $info->{type}) {
		3341	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3342
		3343	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3344	cf::face::set_type $idx, $info->{type};
		3345	} else {
		3346	$RESOURCE{$name} = $info;
		3347	}
		3348
		3349	cf::cede_to_tick;
		3350	}
		3351	}
		3352
		3353	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3354
		3355	1
		3356	}
		3357
		3358	cf::global->attach (on_resource_update => sub {
		3359	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3360	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3361
		3362	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3363	my $sound = $soundconf->{compat}[$_]
		3364	or next;
		3365
		3366	my $face = cf::face::find "sound/$sound->[1]";
		3367	cf::sound::set $sound->[0] => $face;
		3368	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3369	}
		3370
		3371	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3372	my $face = cf::face::find "sound/$v";
		3373	cf::sound::set $k => $face;
		3374	}
		3375	}
		3376	});
		3377
		3378	register_exticmd fx_want => sub {
		3379	my ($ns, $want) = @_;
		3380
		3381	while (my ($k, $v) = each %$want) {
		3382	$ns->fx_want ($k, $v);
		3383	}
		3384	};
		3385
		3386	sub load_resource_file($) {
		3387	my $guard = lock_acquire "load_resource_file";
		3388
		3389	my $status = load_resource_file_ $_[0];
		3390	get_slot 0.1, 100;
		3391	cf::arch::commit_load;
		3392
		3393	$status
		3394	}
		3395
		3396	sub reload_regions {
		3397	# HACK to clear player env face cache, we need some signal framework
		3398	# for this (global event?)
		3399	%ext::player_env::MUSIC_FACE_CACHE = ();
		3400
		3401	load_resource_file "$MAPDIR/regions"
		3402	or die "unable to load regions file\n";
		3403
		3404	for (cf::region::list) {
		3405	$_->{match} = qr/$_->{match}/
		3406	if exists $_->{match};
		3407	}
		3408	}
		3409
		3410	sub reload_facedata {
		3411	load_facedata "$DATADIR/facedata"
		3412	or die "unable to load facedata\n";
		3413	}
		3414
		3415	sub reload_archetypes {
		3416	load_resource_file "$DATADIR/archetypes"
		3417	or die "unable to load archetypes\n";
		3418	}
		3419
		3420	sub reload_treasures {
		3421	load_resource_file "$DATADIR/treasures"
		3422	or die "unable to load treasurelists\n";
		3423	}
		3424
		3425	sub reload_resources {
		3426	warn "reloading resource files...\n";
		3427
		3428	reload_facedata;
		3429	reload_archetypes;
		3430	reload_regions;
		3431	reload_treasures;
		3432
		3433	warn "finished reloading resource files\n";
		3434	}
		3435
		3436	sub reload_config {
		3437	warn "reloading config file...\n";
		3438
2252	open my $fh, "<:utf8", cf::confdir . "/config"	3439	open my $fh, "<:utf8", "$CONFDIR/config"
2253	or return;	3440	or return;
2254		3441
2255	local $/;	3442	local $/;
2256	*CFG = YAML::Syck::Load <$fh>;	3443	*CFG = YAML::XS::Load scalar <$fh>;
2257		3444
2258	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3445	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2259		3446
2260	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3447	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2261	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3448	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2265	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3452	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2266	and die "WARNING: m(un)lockall failed: $!\n";	3453	and die "WARNING: m(un)lockall failed: $!\n";
2267	};	3454	};
2268	warn $@ if $@;	3455	warn $@ if $@;
2269	}	3456	}
		3457
		3458	warn "finished reloading resource files\n";
		3459	}
		3460
		3461	sub pidfile() {
		3462	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3463	or die "$PIDFILE: $!";
		3464	flock $fh, &Fcntl::LOCK_EX
		3465	or die "$PIDFILE: flock: $!";
		3466	$fh
		3467	}
		3468
		3469	# make sure only one server instance is running at any one time
		3470	sub atomic {
		3471	my $fh = pidfile;
		3472
		3473	my $pid = <$fh>;
		3474	kill 9, $pid if $pid > 0;
		3475
		3476	seek $fh, 0, 0;
		3477	print $fh $$;
		3478	}
		3479
		3480	sub main_loop {
		3481	warn "EV::loop starting\n";
		3482	if (1) {
		3483	EV::loop;
		3484	}
		3485	warn "EV::loop returned\n";
		3486	goto &main_loop unless $REALLY_UNLOOP;
2270	}	3487	}
2271		3488
2272	sub main {	3489	sub main {
		3490	cf::init_globals; # initialise logging
		3491
		3492	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3493	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3494	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3495	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3496
		3497	cf::init_experience;
		3498	cf::init_anim;
		3499	cf::init_attackmess;
		3500	cf::init_dynamic;
		3501
		3502	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3503
2273	# we must not ever block the main coroutine	3504	# we must not ever block the main coroutine
2274	local $Coro::idle = sub {	3505	local $Coro::idle = sub {
2275	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3506	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2276	(async {	3507	(async {
2277	Event::one_event;	3508	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3509	EV::loop EV::LOOP_ONESHOT;
2278	})->prio (Coro::PRIO_MAX);	3510	})->prio (Coro::PRIO_MAX);
2279	};	3511	};
2280		3512
2281	cfg_load;	3513	evthread_start IO::AIO::poll_fileno;
2282	db_load;	3514
		3515	cf::sync_job {
		3516	cf::load_settings;
		3517	cf::load_materials;
		3518
		3519	reload_resources;
		3520	reload_config;
		3521	db_init;
		3522
		3523	cf::init_uuid;
		3524	cf::init_signals;
		3525	cf::init_commands;
		3526	cf::init_skills;
		3527
		3528	cf::init_beforeplay;
		3529
		3530	atomic;
		3531
2283	load_extensions;	3532	load_extensions;
2284		3533
2285	$TICK_WATCHER->start;	3534	utime time, time, $RUNTIMEFILE;
2286	Event::loop;	3535
		3536	# no (long-running) fork's whatsoever before this point(!)
		3537	use POSIX ();
		3538	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3539
		3540	(pop @POST_INIT)->(0) while @POST_INIT;
		3541	};
		3542
		3543	main_loop;
2287	}	3544	}
2288		3545
2289	#############################################################################	3546	#############################################################################
2290	# initialisation and cleanup	3547	# initialisation and cleanup
2291		3548
2292	# install some emergency cleanup handlers	3549	# install some emergency cleanup handlers
2293	BEGIN {	3550	BEGIN {
		3551	our %SIGWATCHER = ();
2294	for my $signal (qw(INT HUP TERM)) {	3552	for my $signal (qw(INT HUP TERM)) {
2295	Event->signal (	3553	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2296	reentrant => 0,
2297	data => WF_AUTOCANCEL,
2298	signal => $signal,
2299	prio => 0,
2300	cb => sub {
2301	cf::cleanup "SIG$signal";	3554	cf::cleanup "SIG$signal";
2302	},
2303	);	3555	};
		3556	}
		3557	}
		3558
		3559	sub write_runtime_sync {
		3560	# first touch the runtime file to show we are still running:
		3561	# the fsync below can take a very very long time.
		3562
		3563	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3564
		3565	my $guard = cf::lock_acquire "write_runtime";
		3566
		3567	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3568	or return;
		3569
		3570	my $value = $cf::RUNTIME + 90 + 10;
		3571	# 10 is the runtime save interval, for a monotonic clock
		3572	# 60 allows for the watchdog to kill the server.
		3573
		3574	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3575	and return;
		3576
		3577	# always fsync - this file is important
		3578	aio_fsync $fh
		3579	and return;
		3580
		3581	# touch it again to show we are up-to-date
		3582	aio_utime $fh, undef, undef;
		3583
		3584	close $fh
		3585	or return;
		3586
		3587	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3588	and return;
		3589
		3590	warn "runtime file written.\n";
		3591
2304	}	3592	1
		3593	}
		3594
		3595	our $uuid_lock;
		3596	our $uuid_skip;
		3597
		3598	sub write_uuid_sync($) {
		3599	$uuid_skip ||= $_[0];
		3600
		3601	return if $uuid_lock;
		3602	local $uuid_lock = 1;
		3603
		3604	my $uuid = "$LOCALDIR/uuid";
		3605
		3606	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3607	or return;
		3608
		3609	my $value = uuid_seq uuid_cur;
		3610
		3611	unless ($value) {
		3612	warn "cowardly refusing to write zero uuid value!\n";
		3613	return;
		3614	}
		3615
		3616	my $value = uuid_str $value + $uuid_skip;
		3617	$uuid_skip = 0;
		3618
		3619	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3620	and return;
		3621
		3622	# always fsync - this file is important
		3623	aio_fsync $fh
		3624	and return;
		3625
		3626	close $fh
		3627	or return;
		3628
		3629	aio_rename "$uuid~", $uuid
		3630	and return;
		3631
		3632	warn "uuid file written ($value).\n";
		3633
		3634	1
		3635
		3636	}
		3637
		3638	sub write_uuid($$) {
		3639	my ($skip, $sync) = @_;
		3640
		3641	$sync ? write_uuid_sync $skip
		3642	: async { write_uuid_sync $skip };
2305	}	3643	}
2306		3644
2307	sub emergency_save() {	3645	sub emergency_save() {
2308	my $freeze_guard = cf::freeze_mainloop;	3646	my $freeze_guard = cf::freeze_mainloop;
2309		3647
2310	warn "enter emergency perl save\n";	3648	warn "emergency_perl_save: enter\n";
2311		3649
2312	cf::sync_job {	3650	cf::sync_job {
		3651	# this is a trade-off: we want to be very quick here, so
		3652	# save all maps without fsync, and later call a global sync
		3653	# (which in turn might be very very slow)
		3654	local $USE_FSYNC = 0;
		3655
2313	# use a peculiar iteration method to avoid tripping on perl	3656	# use a peculiar iteration method to avoid tripping on perl
2314	# refcount bugs in for. also avoids problems with players	3657	# refcount bugs in for. also avoids problems with players
2315	# and maps saved/destroyed asynchronously.	3658	# and maps saved/destroyed asynchronously.
2316	warn "begin emergency player save\n";	3659	warn "emergency_perl_save: begin player save\n";
2317	for my $login (keys %cf::PLAYER) {	3660	for my $login (keys %cf::PLAYER) {
2318	my $pl = $cf::PLAYER{$login} or next;	3661	my $pl = $cf::PLAYER{$login} or next;
2319	$pl->valid or next;	3662	$pl->valid or next;
		3663	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2320	$pl->save;	3664	$pl->save;
2321	}	3665	}
2322	warn "end emergency player save\n";	3666	warn "emergency_perl_save: end player save\n";
2323		3667
2324	warn "begin emergency map save\n";	3668	warn "emergency_perl_save: begin map save\n";
2325	for my $path (keys %cf::MAP) {	3669	for my $path (keys %cf::MAP) {
2326	my $map = $cf::MAP{$path} or next;	3670	my $map = $cf::MAP{$path} or next;
2327	$map->valid or next;	3671	$map->valid or next;
2328	$map->save;	3672	$map->save;
2329	}	3673	}
2330	warn "end emergency map save\n";	3674	warn "emergency_perl_save: end map save\n";
		3675
		3676	warn "emergency_perl_save: begin database checkpoint\n";
		3677	BDB::db_env_txn_checkpoint $DB_ENV;
		3678	warn "emergency_perl_save: end database checkpoint\n";
		3679
		3680	warn "emergency_perl_save: begin write uuid\n";
		3681	write_uuid_sync 1;
		3682	warn "emergency_perl_save: end write uuid\n";
2331	};	3683	};
2332		3684
		3685	warn "emergency_perl_save: starting sync()\n";
		3686	IO::AIO::aio_sync sub {
		3687	warn "emergency_perl_save: finished sync()\n";
		3688	};
		3689
2333	warn "leave emergency perl save\n";	3690	warn "emergency_perl_save: leave\n";
2334	}	3691	}
2335		3692
		3693	sub post_cleanup {
		3694	my ($make_core) = @_;
		3695
		3696	warn Carp::longmess "post_cleanup backtrace"
		3697	if $make_core;
		3698
		3699	my $fh = pidfile;
		3700	unlink $PIDFILE if <$fh> == $$;
		3701	}
		3702
		3703	# a safer delete_package, copied from Symbol
		3704	sub clear_package($) {
		3705	my $pkg = shift;
		3706
		3707	# expand to full symbol table name if needed
		3708	unless ($pkg =~ /^main::.*::$/) {
		3709	$pkg = "main$pkg" if $pkg =~ /^::/;
		3710	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3711	$pkg .= '::' unless $pkg =~ /::$/;
		3712	}
		3713
		3714	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3715	my $stem_symtab = *{$stem}{HASH};
		3716
		3717	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3718	or return;
		3719
		3720	# clear all symbols
		3721	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3722	for my $name (keys %$leaf_symtab) {
		3723	_gv_clear *{"$pkg$name"};
		3724	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3725	}
		3726	warn "cleared package $pkg\n";#d#
		3727	}
		3728
2336	sub reload() {	3729	sub do_reload_perl() {
2337	# can/must only be called in main	3730	# can/must only be called in main
2338	if ($Coro::current != $Coro::main) {	3731	if ($Coro::current != $Coro::main) {
2339	warn "can only reload from main coroutine";	3732	warn "can only reload from main coroutine";
2340	return;	3733	return;
2341	}	3734	}
2342		3735
		3736	return if $RELOAD++;
		3737
		3738	my $t1 = EV::time;
		3739
		3740	while ($RELOAD) {
2343	warn "reloading...";	3741	warn "reloading...";
2344		3742
2345	warn "cancelling server ticker";	3743	warn "entering sync_job";
2346	$TICK_WATCHER->cancel;
2347		3744
		3745	cf::sync_job {
		3746	cf::write_runtime_sync; # external watchdog should not bark
2348	cf::emergency_save;	3747	cf::emergency_save;
		3748	cf::write_runtime_sync; # external watchdog should not bark
2349		3749
2350	eval {	3750	warn "syncing database to disk";
		3751	BDB::db_env_txn_checkpoint $DB_ENV;
		3752
2351	# if anything goes wrong in here, we should simply crash as we already saved	3753	# if anything goes wrong in here, we should simply crash as we already saved
2352		3754
2353	warn "syncing database to disk";
2354	cf::db_sync;
2355
2356	warn "cancelling all WF_AUTOCANCEL watchers";
2357	for (Event::all_watchers) {
2358	$_->cancel if $_->data & WF_AUTOCANCEL;
2359	}
2360
2361	warn "flushing outstanding aio requests";	3755	warn "flushing outstanding aio requests";
2362	for (;;) {	3756	while (IO::AIO::nreqs || BDB::nreqs) {
2363	IO::AIO::flush;	3757	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2364	Coro::cede;
2365	last unless IO::AIO::nreqs;
2366	warn "iterate...";
2367	}
2368
2369	warn "cancelling all extension coros";
2370	$_->cancel for values %EXT_CORO;
2371	%EXT_CORO = ();
2372
2373	warn "removing commands";
2374	%COMMAND = ();
2375
2376	warn "removing ext commands";
2377	%EXTCMD = ();
2378
2379	warn "unloading/nuking all extensions";
2380	for my $pkg (@EXTS) {
2381	warn "... unloading $pkg";
2382
2383	if (my $cb = $pkg->can ("unload")) {
2384	eval {
2385	$cb->($pkg);
2386	1
2387	} or warn "$pkg unloaded, but with errors: $@";
2388	}	3758	}
2389		3759
2390	warn "... nuking $pkg";	3760	warn "cancelling all extension coros";
2391	Symbol::delete_package $pkg;	3761	$_->cancel for values %EXT_CORO;
2392	}	3762	%EXT_CORO = ();
2393		3763
2394	warn "unloading all perl modules loaded from $LIBDIR";	3764	warn "removing commands";
2395	while (my ($k, $v) = each %INC) {	3765	%COMMAND = ();
2396	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2397		3766
		3767	warn "removing ext/exti commands";
		3768	%EXTCMD = ();
		3769	%EXTICMD = ();
		3770
		3771	warn "unloading/nuking all extensions";
		3772	for my $pkg (@EXTS) {
2398	warn "... unloading $k";	3773	warn "... unloading $pkg";
2399	delete $INC{$k};
2400		3774
2401	$k =~ s/\.pm$//;
2402	$k =~ s/\//::/g;
2403
2404	if (my $cb = $k->can ("unload_module")) {	3775	if (my $cb = $pkg->can ("unload")) {
		3776	eval {
2405	$cb->();	3777	$cb->($pkg);
		3778	1
		3779	} or warn "$pkg unloaded, but with errors: $@";
		3780	}
		3781
		3782	warn "... clearing $pkg";
		3783	clear_package $pkg;
2406	}	3784	}
2407		3785
2408	Symbol::delete_package $k;	3786	warn "unloading all perl modules loaded from $LIBDIR";
		3787	while (my ($k, $v) = each %INC) {
		3788	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3789
		3790	warn "... unloading $k";
		3791	delete $INC{$k};
		3792
		3793	$k =~ s/\.pm$//;
		3794	$k =~ s/\//::/g;
		3795
		3796	if (my $cb = $k->can ("unload_module")) {
		3797	$cb->();
		3798	}
		3799
		3800	clear_package $k;
2409	}	3801	}
2410		3802
2411	warn "getting rid of safe::, as good as possible";	3803	warn "getting rid of safe::, as good as possible";
2412	Symbol::delete_package "safe::$_"	3804	clear_package "safe::$_"
2413	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3805	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2414		3806
2415	warn "unloading cf.pm \"a bit\"";	3807	warn "unloading cf.pm \"a bit\"";
2416	delete $INC{"cf.pm"};	3808	delete $INC{"cf.pm"};
		3809	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2417		3810
2418	# don't, removes xs symbols, too,	3811	# don't, removes xs symbols, too,
2419	# and global variables created in xs	3812	# and global variables created in xs
2420	#Symbol::delete_package __PACKAGE__;	3813	#clear_package __PACKAGE__;
2421		3814
2422	warn "unload completed, starting to reload now";	3815	warn "unload completed, starting to reload now";
2423		3816
2424	warn "reloading cf.pm";	3817	warn "reloading cf.pm";
2425	require cf;	3818	require cf;
2426	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3819	cf::_connect_to_perl_1;
2427		3820
2428	warn "loading config and database again";	3821	warn "loading config and database again";
2429	cf::cfg_load;	3822	cf::reload_config;
2430	cf::db_load;
2431		3823
2432	warn "loading extensions";	3824	warn "loading extensions";
2433	cf::load_extensions;	3825	cf::load_extensions;
2434		3826
		3827	if ($REATTACH_ON_RELOAD) {
2435	warn "reattaching attachments to objects/players";	3828	warn "reattaching attachments to objects/players";
2436	_global_reattach;	3829	_global_reattach; # objects, sockets
2437	warn "reattaching attachments to maps";	3830	warn "reattaching attachments to maps";
2438	reattach $_ for values %MAP;	3831	reattach $_ for values %MAP;
		3832	warn "reattaching attachments to players";
		3833	reattach $_ for values %PLAYER;
		3834	}
2439		3835
2440	warn "restarting server ticker";	3836	warn "running post_init jobs";
		3837	(pop @POST_INIT)->(1) while @POST_INIT;
2441		3838
2442	$TICK_WATCHER->start;	3839	warn "leaving sync_job";
		3840
		3841	1
		3842	} or do {
		3843	warn $@;
		3844	cf::cleanup "error while reloading, exiting.";
		3845	};
		3846
		3847	warn "reloaded";
		3848	--$RELOAD;
		3849	}
		3850
		3851	$t1 = EV::time - $t1;
		3852	warn "reload completed in ${t1}s\n";
		3853	};
		3854
		3855	our $RELOAD_WATCHER; # used only during reload
		3856
		3857	sub reload_perl() {
		3858	# doing reload synchronously and two reloads happen back-to-back,
		3859	# coro crashes during coro_state_free->destroy here.
		3860
		3861	$RELOAD_WATCHER ||= cf::async {
		3862	Coro::AIO::aio_wait cache_extensions;
		3863
		3864	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3865	do_reload_perl;
		3866	undef $RELOAD_WATCHER;
		3867	};
2443	};	3868	};
2444		3869	}
2445	if ($@) {
2446	warn $@;
2447	warn "error while reloading, exiting.";
2448	exit 1;
2449	}
2450
2451	warn "reloaded";
2452	};
2453
2454	our $RELOAD_WATCHER; # used only during reload
2455		3870
2456	register_command "reload" => sub {	3871	register_command "reload" => sub {
2457	my ($who, $arg) = @_;	3872	my ($who, $arg) = @_;
2458		3873
2459	if ($who->flag (FLAG_WIZ)) {	3874	if ($who->flag (FLAG_WIZ)) {
2460	$who->message ("reloading server.");	3875	$who->message ("reloading server.");
2461		3876	async {
2462	# doing reload synchronously and two reloads happen back-to-back,	3877	$Coro::current->{desc} = "perl_reload";
2463	# coro crashes during coro_state_free->destroy here.
2464
2465	$RELOAD_WATCHER ||= Event->timer (
2466	reentrant => 0,
2467	after => 0,
2468	data => WF_AUTOCANCEL,
2469	cb => sub {
2470	reload;	3878	reload_perl;
2471	undef $RELOAD_WATCHER;
2472	},
2473	);	3879	};
2474	}	3880	}
2475	};	3881	};
2476		3882
2477	unshift @INC, $LIBDIR;	3883	unshift @INC, $LIBDIR;
2478		3884
2479	my $bug_warning = 0;	3885	my $bug_warning = 0;
2480		3886
2481	$TICK_WATCHER = Event->timer (	3887	our @WAIT_FOR_TICK;
2482	reentrant => 0,	3888	our @WAIT_FOR_TICK_BEGIN;
2483	parked => 1,	3889
2484	prio => 0,	3890	sub wait_for_tick {
2485	at => $NEXT_TICK || $TICK,	3891	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2486	data => WF_AUTOCANCEL,	3892
2487	cb => sub {	3893	my $signal = new Coro::Signal;
		3894	push @WAIT_FOR_TICK, $signal;
		3895	$signal->wait;
		3896	}
		3897
		3898	sub wait_for_tick_begin {
		3899	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3900
		3901	my $signal = new Coro::Signal;
		3902	push @WAIT_FOR_TICK_BEGIN, $signal;
		3903	$signal->wait;
		3904	}
		3905
		3906	sub tick {
2488	if ($Coro::current != $Coro::main) {	3907	if ($Coro::current != $Coro::main) {
2489	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3908	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2490	unless ++$bug_warning > 10;	3909	unless ++$bug_warning > 10;
2491	return;	3910	return;
2492	}	3911	}
2493		3912
2494	$NOW = Event::time;
2495
2496	cf::server_tick; # one server iteration	3913	cf::server_tick; # one server iteration
2497	$RUNTIME += $TICK;
2498	$NEXT_TICK += $TICK;
2499		3914
2500	$WAIT_FOR_TICK->broadcast;	3915	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2501	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3916	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2502		3917	Coro::async_pool {
2503	Event::sweep;	3918	$Coro::current->{desc} = "runtime saver";
2504	Coro::cede_notself;
2505
2506	# my $AFTER = Event::time;
2507	# warn $AFTER - $NOW;#d#
2508
2509	# if we are delayed by four ticks or more, skip them all
2510	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2511
2512	$TICK_WATCHER->at ($NEXT_TICK);
2513	$TICK_WATCHER->start;
2514	},
2515	);
2516
2517	IO::AIO::max_poll_time $TICK * 0.1;
2518
2519	undef $Coro::AIO::WATCHER;
2520	$AIO_POLL_WATCHER = Event->io (
2521	reentrant => 0,
2522	fd => IO::AIO::poll_fileno,
2523	poll => 'r',
2524	prio => 6,
2525	data => WF_AUTOCANCEL,
2526	cb => \&IO::AIO::poll_cb,
2527	);
2528
2529	$WRITE_RUNTIME_WATCHER = Event->timer (
2530	reentrant => 0,
2531	data => WF_AUTOCANCEL,
2532	after => 1,
2533	interval => 10,
2534	prio => 6, # keep it lowest so it acts like a watchdog
2535	cb => Coro::unblock_sub {
2536	write_runtime	3919	write_runtime_sync
2537	or warn "ERROR: unable to write runtime file: $!";	3920	or warn "ERROR: unable to write runtime file: $!";
		3921	};
2538	},	3922	}
2539	);	3923
		3924	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3925	$sig->send;
		3926	}
		3927	while (my $sig = shift @WAIT_FOR_TICK) {
		3928	$sig->send;
		3929	}
		3930
		3931	$LOAD = ($NOW - $TICK_START) / $TICK;
		3932	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3933
		3934	if (0) {
		3935	if ($NEXT_TICK) {
		3936	my $jitter = $TICK_START - $NEXT_TICK;
		3937	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3938	warn "jitter $JITTER\n";#d#
		3939	}
		3940	}
		3941	}
		3942
		3943	{
		3944	# configure BDB
		3945
		3946	BDB::min_parallel 8;
		3947	BDB::max_poll_reqs $TICK * 0.1;
		3948	$AnyEvent::BDB::WATCHER->priority (1);
		3949
		3950	unless ($DB_ENV) {
		3951	$DB_ENV = BDB::db_env_create;
		3952	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3953	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3954	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3955	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3956	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3957
		3958	cf::sync_job {
		3959	eval {
		3960	BDB::db_env_open
		3961	$DB_ENV,
		3962	$BDBDIR,
		3963	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3964	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3965	0666;
		3966
		3967	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3968	};
		3969
		3970	cf::cleanup "db_env_open(db): $@" if $@;
		3971	};
		3972	}
		3973
		3974	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3975	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3976	};
		3977	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3978	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3979	};
		3980	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3981	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3982	};
		3983	}
		3984
		3985	{
		3986	# configure IO::AIO
		3987
		3988	IO::AIO::min_parallel 8;
		3989	IO::AIO::max_poll_time $TICK * 0.1;
		3990	undef $AnyEvent::AIO::WATCHER;
		3991	}
		3992
		3993	my $_log_backtrace;
		3994
		3995	sub _log_backtrace {
		3996	my ($msg, @addr) = @_;
		3997
		3998	$msg =~ s/\n//;
		3999
		4000	# limit the # of concurrent backtraces
		4001	if ($_log_backtrace < 2) {
		4002	++$_log_backtrace;
		4003	my $perl_bt = Carp::longmess $msg;
		4004	async {
		4005	$Coro::current->{desc} = "abt $msg";
		4006
		4007	my @bt = fork_call {
		4008	@addr = map { sprintf "%x", $_ } @addr;
		4009	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4010	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4011	or die "addr2line: $!";
		4012
		4013	my @funcs;
		4014	my @res = <$fh>;
		4015	chomp for @res;
		4016	while (@res) {
		4017	my ($func, $line) = splice @res, 0, 2, ();
		4018	push @funcs, "[$func] $line";
		4019	}
		4020
		4021	@funcs
		4022	};
		4023
		4024	LOG llevInfo, "[ABT] $perl_bt\n";
		4025	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4026	LOG llevInfo, "[ABT] $_\n" for @bt;
		4027	--$_log_backtrace;
		4028	};
		4029	} else {
		4030	LOG llevInfo, "[ABT] $msg\n";
		4031	LOG llevInfo, "[ABT] [suppressed]\n";
		4032	}
		4033	}
		4034
		4035	# load additional modules
		4036	require "cf/$_.pm" for @EXTRA_MODULES;
		4037	cf::_connect_to_perl_2;
2540		4038
2541	END { cf::emergency_save }	4039	END { cf::emergency_save }
2542		4040
2543	1	4041	1
2544		4042

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