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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.153 by root, Mon Jan 8 23:36:16 2007 UTC vs.
Revision 1.570 by root, Wed May 4 07:41:14 2011 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011 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
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
20	use Digest::MD5;	53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
21	use Fcntl;	56	use Fcntl;
22	use IO::AIO 2.32 ();
23	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
24	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
25		62
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		69
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
		78
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98
		99	our $DATADIR = datadir;
		100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
		104	our $LOCALDIR = localdir;
		105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		108	our $RANDOMDIR = "$LOCALDIR/random";
		109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
		120
		121	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	123	our $NEXT_TICK;
45	our $NOW;	124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
46		132
47	our %CFG;	133	our %CFG;
48		134
49	our $UPTIME; $UPTIME ||= time;	135	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	136	our $RUNTIME;
		137	our $NOW;
51		138
52	our %PLAYER; # all users	139	our (%PLAYER, %PLAYER_LOADING); # all users
53	our %MAP; # all maps	140	our (%MAP, %MAP_LOADING ); # all maps
54	our $LINK_MAP; # the special {link} map	141	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	142
56	our %EXT_CORO; # coroutines bound to extensions	143	# used to convert map paths into valid unix filenames by replacing / by ∕
		144	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		145
		146	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		147	our $LOADAVG; # same thing, but with alpha-smoothing
		148	our $JITTER; # average jitter
		149	our $TICK_START; # for load detecting purposes
		150
		151	our @POST_INIT;
		152
		153	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		154	our $REALLY_UNLOOP; # never set to true, please :)
57		155
58	binmode STDOUT;	156	binmode STDOUT;
59	binmode STDERR;	157	binmode STDERR;
60		158
61	# read virtual server time, if available	159	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	160	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	161	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	162	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	163	$RUNTIME = <$fh> + 0.;
66	}	164	}
67		165
68	mkdir cf::localdir;	166	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		167
74	# a special map that is always available	168	mkdir $_
75	our $LINK_MAP;	169	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		170
76	our $EMERGENCY_POSITION;	171	our $EMERGENCY_POSITION;
		172
		173	sub cf::map::normalise;
		174
		175	sub in_main() {
		176	$Coro::current == $Coro::main
		177	}
		178
		179	#############################################################################
		180
		181	%REFLECT = ();
		182	for (@REFLECT) {
		183	my $reflect = JSON::XS::decode_json $_;
		184	$REFLECT{$reflect->{class}} = $reflect;
		185	}
		186
		187	# this is decidedly evil
		188	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
77		189
78	#############################################################################	190	#############################################################################
79		191
80	=head2 GLOBAL VARIABLES	192	=head2 GLOBAL VARIABLES
81		193
…		…
88	=item $cf::RUNTIME	200	=item $cf::RUNTIME
89		201
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	202	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	203	every server tick.
92		204
93	=item $cf::LIBDIR	205	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		206	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		207	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		208
95	The perl library directory, where extensions and cf-specific modules can	209	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	210	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		211	unique-items directory, player file directory, random maps directory and
		212	database environment.
97		213
98	=item $cf::NOW	214	=item $cf::NOW
99		215
100	The time of the last (current) server tick.	216	The time of the last (current) server tick.
101		217
102	=item $cf::TICK	218	=item $cf::TICK
103		219
104	The interval between server ticks, in seconds.	220	The interval between server ticks, in seconds.
105		221
		222	=item $cf::LOADAVG
		223
		224	The current CPU load on the server (alpha-smoothed), as a value between 0
		225	(none) and 1 (overloaded), indicating how much time is spent on processing
		226	objects per tick. Healthy values are < 0.5.
		227
		228	=item $cf::LOAD
		229
		230	The raw value load value from the last tick.
		231
106	=item %cf::CFG	232	=item %cf::CFG
107		233
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	234	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	235	from wherever your confdir points to.
110		236
		237	=item cf::wait_for_tick, cf::wait_for_tick_begin
		238
		239	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		240	returns directly I<after> the tick processing (and consequently, can only wake one thread
		241	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		242
		243	=cut
		244
		245	sub wait_for_tick();
		246	sub wait_for_tick_begin();
		247
		248	=item @cf::INVOKE_RESULTS
		249
		250	This array contains the results of the last C<invoke ()> call. When
		251	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		252	that call.
		253
		254	=item %cf::REFLECT
		255
		256	Contains, for each (C++) class name, a hash reference with information
		257	about object members (methods, scalars, arrays and flags) and other
		258	metadata, which is useful for introspection.
		259
111	=back	260	=back
112		261
113	=cut	262	=cut
114		263
115	BEGIN {	264	sub error(@) { LOG llevError, join "", @_ }
116	*CORE::GLOBAL::warn = sub {	265	sub warn (@) { LOG llevWarn , join "", @_ }
		266	sub info (@) { LOG llevInfo , join "", @_ }
		267	sub debug(@) { LOG llevDebug, join "", @_ }
		268	sub trace(@) { LOG llevTrace, join "", @_ }
		269
		270	$Coro::State::WARNHOOK = sub {
117	my $msg = join "", @_;	271	my $msg = join "", @_;
118	utf8::encode $msg;
119		272
120	$msg .= "\n"	273	$msg .= "\n"
121	unless $msg =~ /\n$/;	274	unless $msg =~ /\n$/;
122		275
		276	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		277
123	LOG llevError, $msg;	278	LOG llevWarn, $msg;
124	};	279	};
125	}	280
		281	$Coro::State::DIEHOOK = sub {
		282	return unless $^S eq 0; # "eq", not "=="
		283
		284	error Carp::longmess $_[0];
		285
		286	if (in_main) {#d#
		287	error "DIEHOOK called in main context, Coro bug?\n";#d#
		288	return;#d#
		289	}#d#
		290
		291	# kill coroutine otherwise
		292	Coro::terminate
		293	};
126		294
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	295	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	296	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	297	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	298	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	299	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		300	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	301	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		302
134	# we bless all objects into (empty) derived classes to force a method lookup	303	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	304	# within the Safe compartment.
136	for my $pkg (qw(	305	for my $pkg (qw(
137	cf::global cf::attachable	306	cf::global cf::attachable
138	cf::object cf::object::player	307	cf::object cf::object::player
139	cf::client cf::player	308	cf::client cf::player
140	cf::arch cf::living	309	cf::arch cf::living
		310	cf::map cf::mapspace
141	cf::map cf::party cf::region	311	cf::party cf::region
142	)) {	312	)) {
143	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	313	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	314	}
146		315
147	$Event::DIED = sub {	316	$EV::DIED = sub {
148	warn "error in event callback: @_";	317	Carp::cluck "error in event callback: @_";
149	};	318	};
150		319
151	my %ext_pkg;	320	#############################################################################
152	my @exts;	321
153	my @hook;	322	sub fork_call(&@);
		323	sub get_slot($;$$);
		324
		325	#############################################################################
154		326
155	=head2 UTILITY FUNCTIONS	327	=head2 UTILITY FUNCTIONS
156		328
157	=over 4	329	=over 4
158		330
159	=cut	331	=item dumpval $ref
160		332
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	333	=cut
162		334
		335	sub dumpval {
		336	eval {
		337	local $SIG{__DIE__};
		338	my $d;
		339	if (1) {
		340	$d = new Data::Dumper([$_[0]], ["*var"]);
		341	$d->Terse(1);
		342	$d->Indent(2);
		343	$d->Quotekeys(0);
		344	$d->Useqq(1);
		345	#$d->Bless(...);
		346	$d->Seen($_[1]) if @_ > 1;
		347	$d = $d->Dump();
		348	}
		349	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		350	$d
		351	} || "[unable to dump $_[0]: '$@']";
		352	}
		353
		354	=item $scalar = load_file $path
		355
		356	Loads the given file from path and returns its contents. Croaks on error
		357	and can block.
		358
		359	=cut
		360
		361	sub load_file($) {
		362	0 <= aio_load $_[0], my $data
		363	or Carp::croak "$_[0]: $!";
		364
		365	$data
		366	}
		367
163	=item $ref = cf::from_json $json	368	=item $ref = cf::decode_json $json
164		369
165	Converts a JSON string into the corresponding perl data structure.	370	Converts a JSON string into the corresponding perl data structure.
166		371
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	372	=item $json = cf::encode_json $ref
175		373
176	Converts a perl data structure into its JSON representation.	374	Converts a perl data structure into its JSON representation.
177		375
178	=cut	376	=cut
179		377
180	sub to_json($) {	378	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	379
182	JSON::Syck::Dump $_[0]	380	sub encode_json($) { $json_coder->encode ($_[0]) }
		381	sub decode_json($) { $json_coder->decode ($_[0]) }
		382
		383	=item $ref = cf::decode_storable $scalar
		384
		385	Same as Coro::Storable::thaw, so blocks.
		386
		387	=cut
		388
		389	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		390
		391	=item $ref = cf::decode_yaml $scalar
		392
		393	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		394
		395	=cut
		396
		397	sub decode_yaml($) {
		398	fork_call { YAML::XS::Load $_[0] } @_
		399	}
		400
		401	=item $scalar = cf::unlzf $scalar
		402
		403	Same as Compress::LZF::compress, but takes server ticks into account, so
		404	blocks.
		405
		406	=cut
		407
		408	sub unlzf($) {
		409	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		410	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		411	Compress::LZF::decompress $_[0]
		412	}
		413
		414	=item cf::post_init { BLOCK }
		415
		416	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		417	but I<before> the server starts ticking again.
		418
		419	The codeblock will have a single boolean argument to indicate whether this
		420	is a reload or not.
		421
		422	=cut
		423
		424	sub post_init(&) {
		425	push @POST_INIT, shift;
		426	}
		427
		428	sub _post_init {
		429	trace "running post_init jobs";
		430
		431	# run them in parallel...
		432
		433	my @join;
		434
		435	while () {
		436	push @join, map &Coro::async ($_, 0), @POST_INIT;
		437	@POST_INIT = ();
		438
		439	@join or last;
		440
		441	(pop @join)->join;
		442	}
183	}	443	}
184		444
185	=item cf::lock_wait $string	445	=item cf::lock_wait $string
186		446
187	Wait until the given lock is available. See cf::lock_acquire.	447	Wait until the given lock is available. See cf::lock_acquire.
188		448
189	=item my $lock = cf::lock_acquire $string	449	=item my $lock = cf::lock_acquire $string
190		450
191	Wait until the given lock is available and then acquires it and returns	451	Wait until the given lock is available and then acquires it and returns
192	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	452	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
193	for example when the coroutine gets canceled), the lock is automatically	453	for example when the coroutine gets canceled), the lock is automatically
194	returned.	454	returned.
195		455
		456	Locks are *not* recursive, locking from the same coro twice results in a
		457	deadlocked coro.
		458
196	Lock names should begin with a unique identifier (for example, cf::map::find	459	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	460	uses map_find and cf::map::load uses map_load).
198		461
199	=cut	462	=item $locked = cf::lock_active $string
200		463
201	our %LOCK;	464	Return true if the lock is currently active, i.e. somebody has locked it.
		465
		466	=cut
		467
		468	our $LOCKS = new Coro::SemaphoreSet;
202		469
203	sub lock_wait($) {	470	sub lock_wait($) {
204	my ($key) = @_;	471	$LOCKS->wait ($_[0]);
205
206	# wait for lock, if any
207	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;
210	}
211	}	472	}
212		473
213	sub lock_acquire($) {	474	sub lock_acquire($) {
214	my ($key) = @_;	475	$LOCKS->guard ($_[0])
		476	}
215		477
216	# wait, to be sure we are not locked	478	sub lock_active($) {
217	lock_wait $key;	479	$LOCKS->count ($_[0]) < 1
218
219	$LOCK{$key} = [];
220
221	Coro::guard {
222	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };
224	}
225	}	480	}
226		481
227	sub freeze_mainloop {	482	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	483	tick_inhibit_inc;
229		484
230	my $guard = Coro::guard { $TICK_WATCHER->start };	485	&Guard::guard (\&tick_inhibit_dec);
231	$TICK_WATCHER->stop;	486	}
232	$guard	487
		488	=item cf::periodic $interval, $cb
		489
		490	Like EV::periodic, but randomly selects a starting point so that the actions
		491	get spread over time.
		492
		493	=cut
		494
		495	sub periodic($$) {
		496	my ($interval, $cb) = @_;
		497
		498	my $start = rand List::Util::min 180, $interval;
		499
		500	EV::periodic $start, $interval, 0, $cb
		501	}
		502
		503	=item cf::get_slot $time[, $priority[, $name]]
		504
		505	Allocate $time seconds of blocking CPU time at priority C<$priority>
		506	(default: 0): This call blocks and returns only when you have at least
		507	C<$time> seconds of cpu time till the next tick. The slot is only valid
		508	till the next cede.
		509
		510	Background jobs should use a priority les than zero, interactive jobs
		511	should use 100 or more.
		512
		513	The optional C<$name> can be used to identify the job to run. It might be
		514	used for statistical purposes and should identify the same time-class.
		515
		516	Useful for short background jobs.
		517
		518	=cut
		519
		520	our @SLOT_QUEUE;
		521	our $SLOT_QUEUE;
		522	our $SLOT_DECAY = 0.9;
		523
		524	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		525	$SLOT_QUEUE = Coro::async {
		526	$Coro::current->desc ("timeslot manager");
		527
		528	my $signal = new Coro::Signal;
		529	my $busy;
		530
		531	while () {
		532	next_job:
		533
		534	my $avail = cf::till_tick;
		535
		536	for (0 .. $#SLOT_QUEUE) {
		537	if ($SLOT_QUEUE[$_][0] <= $avail) {
		538	$busy = 0;
		539	my $job = splice @SLOT_QUEUE, $_, 1, ();
		540	$job->[2]->send;
		541	Coro::cede;
		542	goto next_job;
		543	} else {
		544	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		545	}
		546	}
		547
		548	if (@SLOT_QUEUE) {
		549	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		550	push @cf::WAIT_FOR_TICK, $signal;
		551	$signal->wait;
		552	} else {
		553	$busy = 0;
		554	Coro::schedule;
		555	}
		556	}
		557	};
		558
		559	sub get_slot($;$$) {
		560	return if tick_inhibit || $Coro::current == $Coro::main;
		561
		562	my ($time, $pri, $name) = @_;
		563
		564	$time = clamp $time, 0.01, $TICK * .6;
		565
		566	my $sig = new Coro::Signal;
		567
		568	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		569	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		570	$SLOT_QUEUE->ready;
		571	$sig->wait;
233	}	572	}
234		573
235	=item cf::async { BLOCK }	574	=item cf::async { BLOCK }
236		575
237	Currently the same as Coro::async_pool, meaning you cannot use	576	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		581
243	BEGIN { *async = \&Coro::async_pool }	582	BEGIN { *async = \&Coro::async_pool }
244		583
245	=item cf::sync_job { BLOCK }	584	=item cf::sync_job { BLOCK }
246		585
247	The design of crossfire+ requires that the main coro ($Coro::main) is	586	The design of Deliantra requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	587	is always able to handle events or runnable, as Deliantra is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	588	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		589	acceptable.
250		590
251	If it must be done, put the blocking parts into C<sync_job>. This will run	591	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	592	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	593	server will be frozen during this time, so the block should either finish
254	fast or be very important.	594	fast or be very important.
…		…
256	=cut	596	=cut
257		597
258	sub sync_job(&) {	598	sub sync_job(&) {
259	my ($job) = @_;	599	my ($job) = @_;
260		600
261	if ($Coro::current == $Coro::main) {	601	if (in_main) {
		602	my $time = AE::time;
		603
262	# this is the main coro, too bad, we have to block	604	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	605	# till the operation succeeds, freezing the server :/
264		606
265	# TODO: use suspend/resume instead	607	#LOG llevError, Carp::longmess "sync job";#d#
266	# (but this is cancel-safe)	608
267	my $freeze_guard = freeze_mainloop;	609	my $freeze_guard = freeze_mainloop;
268		610
269	my $busy = 1;	611	my $busy = 1;
270	my @res;	612	my @res;
271		613
272	(async {	614	(async {
		615	$Coro::current->desc ("sync job coro");
273	@res = eval { $job->() };	616	@res = eval { $job->() };
274	warn $@ if $@;	617	error $@ if $@;
275	undef $busy;	618	undef $busy;
276	})->prio (Coro::PRIO_MAX);	619	})->prio (Coro::PRIO_MAX);
277		620
278	while ($busy) {	621	while ($busy) {
279	Coro::cede or Event::one_event;	622	if (Coro::nready) {
		623	Coro::cede_notself;
		624	} else {
		625	EV::loop EV::LOOP_ONESHOT;
280	}	626	}
		627	}
		628
		629	my $time = AE::time - $time;
		630
		631	$TICK_START += $time; # do not account sync jobs to server load
281		632
282	wantarray ? @res : $res[0]	633	wantarray ? @res : $res[0]
283	} else {	634	} else {
284	# we are in another coroutine, how wonderful, everything just works	635	# we are in another coroutine, how wonderful, everything just works
285		636
…		…
287	}	638	}
288	}	639	}
289		640
290	=item $coro = cf::async_ext { BLOCK }	641	=item $coro = cf::async_ext { BLOCK }
291		642
292	Like async, but this coro is automcatially being canceled when the	643	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	644	extension calling this is being unloaded.
294		645
295	=cut	646	=cut
296		647
297	sub async_ext(&) {	648	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	656	$EXT_CORO{$coro+0} = $coro;
306		657
307	$coro	658	$coro
308	}	659	}
309		660
310	sub write_runtime {	661	=item fork_call { }, @args
311	my $runtime = cf::localdir . "/runtime";
312		662
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	663	Executes the given code block with the given arguments in a seperate
314	or return;	664	process, returning the results. Everything must be serialisable with
		665	Coro::Storable. May, of course, block. Note that the executed sub may
		666	never block itself or use any form of event handling.
315		667
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	668	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		669
320	aio_fsync $fh	670	sub post_fork {
321	and return;	671	reset_signals;
		672	}
322		673
323	close $fh	674	sub fork_call(&@) {
324	or return;	675	my ($cb, @args) = @_;
325		676
326	aio_rename "$runtime~", $runtime	677	# we seemingly have to make a local copy of the whole thing,
327	and return;	678	# otherwise perl prematurely frees the stuff :/
		679	# TODO: investigate and fix (likely this will be rather laborious)
328		680
		681	my @res = Coro::Util::fork_eval {
		682	cf::post_fork;
		683	&$cb
		684	} @args;
		685
		686	wantarray ? @res : $res[-1]
		687	}
		688
		689	sub objinfo {
329	1	690	(
		691	"counter value" => cf::object::object_count,
		692	"objects created" => cf::object::create_count,
		693	"objects destroyed" => cf::object::destroy_count,
		694	"freelist size" => cf::object::free_count,
		695	"allocated objects" => cf::object::objects_size,
		696	"active objects" => cf::object::actives_size,
		697	)
		698	}
		699
		700	=item $coin = coin_from_name $name
		701
		702	=cut
		703
		704	our %coin_alias = (
		705	"silver" => "silvercoin",
		706	"silvercoin" => "silvercoin",
		707	"silvercoins" => "silvercoin",
		708	"gold" => "goldcoin",
		709	"goldcoin" => "goldcoin",
		710	"goldcoins" => "goldcoin",
		711	"platinum" => "platinacoin",
		712	"platinumcoin" => "platinacoin",
		713	"platinumcoins" => "platinacoin",
		714	"platina" => "platinacoin",
		715	"platinacoin" => "platinacoin",
		716	"platinacoins" => "platinacoin",
		717	"royalty" => "royalty",
		718	"royalties" => "royalty",
		719	);
		720
		721	sub coin_from_name($) {
		722	$coin_alias{$_[0]}
		723	? cf::arch::find $coin_alias{$_[0]}
		724	: undef
		725	}
		726
		727	=item $value = cf::db_get $family => $key
		728
		729	Returns a single value from the environment database.
		730
		731	=item cf::db_put $family => $key => $value
		732
		733	Stores the given C<$value> in the family. It can currently store binary
		734	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		735
		736	=item $db = cf::db_table "name"
		737
		738	Create and/or open a new database table. The string must not be "db" and must be unique
		739	within each server.
		740
		741	=cut
		742
		743	sub db_table($) {
		744	cf::error "db_get called from main context"
		745	if $Coro::current == $Coro::main;
		746
		747	my ($name) = @_;
		748	my $db = BDB::db_create $DB_ENV;
		749
		750	eval {
		751	$db->set_flags (BDB::CHKSUM);
		752
		753	utf8::encode $name;
		754	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		755	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		756	cf::cleanup "db_open(db): $!" if $!;
		757	};
		758	cf::cleanup "db_open(db): $@" if $@;
		759
		760	$db
		761	}
		762
		763	our $DB;
		764
		765	sub db_init {
		766	$DB ||= db_table "db";
		767	}
		768
		769	sub db_get($$) {
		770	my $key = "$_[0]/$_[1]";
		771
		772	cf::error "db_get called from main context"
		773	if $Coro::current == $Coro::main;
		774
		775	BDB::db_get $DB, undef, $key, my $data;
		776
		777	$! ? ()
		778	: $data
		779	}
		780
		781	sub db_put($$$) {
		782	BDB::dbreq_pri 4;
		783	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		784	}
		785
		786	=item cf::cache $id => [$paths...], $processversion => $process
		787
		788	Generic caching function that returns the value of the resource $id,
		789	caching and regenerating as required.
		790
		791	This function can block.
		792
		793	=cut
		794
		795	sub cache {
		796	my ($id, $src, $processversion, $process) = @_;
		797
		798	my $meta =
		799	join "\x00",
		800	$processversion,
		801	map {
		802	aio_stat $_
		803	and Carp::croak "$_: $!";
		804
		805	($_, (stat _)[7,9])
		806	} @$src;
		807
		808	my $dbmeta = db_get cache => "$id/meta";
		809	if ($dbmeta ne $meta) {
		810	# changed, we may need to process
		811
		812	my @data;
		813	my $md5;
		814
		815	for (0 .. $#$src) {
		816	$data[$_] = load_file $src->[$_];
		817	}
		818
		819	# if processing is expensive, check
		820	# checksum first
		821	if (1) {
		822	$md5 =
		823	join "\x00",
		824	$processversion,
		825	map {
		826	cf::cede_to_tick;
		827	($src->[$_], Digest::MD5::md5_hex $data[$_])
		828	} 0.. $#$src;
		829
		830
		831	my $dbmd5 = db_get cache => "$id/md5";
		832	if ($dbmd5 eq $md5) {
		833	db_put cache => "$id/meta", $meta;
		834
		835	return db_get cache => "$id/data";
		836	}
		837	}
		838
		839	my $t1 = Time::HiRes::time;
		840	my $data = $process->(\@data);
		841	my $t2 = Time::HiRes::time;
		842
		843	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		844
		845	db_put cache => "$id/data", $data;
		846	db_put cache => "$id/md5" , $md5;
		847	db_put cache => "$id/meta", $meta;
		848
		849	return $data;
		850	}
		851
		852	db_get cache => "$id/data"
		853	}
		854
		855	=item cf::datalog type => key => value, ...
		856
		857	Log a datalog packet of the given type with the given key-value pairs.
		858
		859	=cut
		860
		861	sub datalog($@) {
		862	my ($type, %kv) = @_;
		863	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330	}	864	}
331		865
332	=back	866	=back
333		867
334	=cut	868	=cut
335		869
336	#############################################################################	870	#############################################################################
337		871
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455
456	#############################################################################
457
458	=head2 ATTACHABLE OBJECTS	872	=head2 ATTACHABLE OBJECTS
459		873
460	Many objects in crossfire are so-called attachable objects. That means you can	874	Many objects in deliantra are so-called attachable objects. That means you can
461	attach callbacks/event handlers (a collection of which is called an "attachment")	875	attach callbacks/event handlers (a collection of which is called an "attachment")
462	to it. All such attachable objects support the following methods.	876	to it. All such attachable objects support the following methods.
463		877
464	In the following description, CLASS can be any of C<global>, C<object>	878	In the following description, CLASS can be any of C<global>, C<object>
465	C<player>, C<client> or C<map> (i.e. the attachable objects in	879	C<player>, C<client> or C<map> (i.e. the attachable objects in
466	crossfire+).	880	Deliantra).
467		881
468	=over 4	882	=over 4
469		883
470	=item $attachable->attach ($attachment, key => $value...)	884	=item $attachable->attach ($attachment, key => $value...)
471		885
…		…
515	=item cf::CLASS::attachment $name, ...	929	=item cf::CLASS::attachment $name, ...
516		930
517	Register an attachment by C<$name> through which attachable objects of the	931	Register an attachment by C<$name> through which attachable objects of the
518	given CLASS can refer to this attachment.	932	given CLASS can refer to this attachment.
519		933
520	Some classes such as crossfire maps and objects can specify attachments	934	Some classes such as deliantra maps and objects can specify attachments
521	that are attached at load/instantiate time, thus the need for a name.	935	that are attached at load/instantiate time, thus the need for a name.
522		936
523	These calls expect any number of the following handler/hook descriptions:	937	These calls expect any number of the following handler/hook descriptions:
524		938
525	=over 4	939	=over 4
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	999	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	1000	our @CB_MAP = ();
587		1001
588	my %attachment;	1002	my %attachment;
589		1003
		1004	sub cf::attachable::thawer_merge {
		1005	# simply override everything except _meta
		1006	local $_[0]{_meta};
		1007	%{$_[0]} = %{$_[1]};
		1008	}
		1009
590	sub _attach_cb($$$$) {	1010	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	1011	my ($registry, $event, $prio, $cb) = @_;
592		1012
593	use sort 'stable';	1013	use sort 'stable';
594		1014
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	1048	$registry = $CB_TYPE[$object_type] ||= [];
629		1049
630	} elsif ($type eq "subtype") {	1050	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	1051	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	1052	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1053	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		1054
635	} elsif ($type eq "package") {	1055	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	1056	my $pkg = shift @arg;
637		1057
638	while (my ($name, $id) = each %cb_id) {	1058	while (my ($name, $id) = each %cb_id) {
…		…
643		1063
644	} elsif (exists $cb_id{$type}) {	1064	} elsif (exists $cb_id{$type}) {
645	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1065	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
646		1066
647	} elsif (ref $type) {	1067	} elsif (ref $type) {
648	warn "attaching objects not supported, ignoring.\n";	1068	error "attaching objects not supported, ignoring.\n";
649		1069
650	} else {	1070	} else {
651	shift @arg;	1071	shift @arg;
652	warn "attach argument '$type' not supported, ignoring.\n";	1072	error "attach argument '$type' not supported, ignoring.\n";
653	}	1073	}
654	}	1074	}
655	}	1075	}
656		1076
657	sub _object_attach {	1077	sub _object_attach {
…		…
667	_attach $registry, $klass, @attach;	1087	_attach $registry, $klass, @attach;
668	}	1088	}
669		1089
670	$obj->{$name} = \%arg;	1090	$obj->{$name} = \%arg;
671	} else {	1091	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	1092	info "object uses attachment '$name' which is not available, postponing.\n";
673	}	1093	}
674		1094
675	$obj->{_attachment}{$name} = undef;	1095	$obj->{_attachment}{$name} = undef;
676	}	1096	}
677		1097
…		…
679	if (ref $_[0]) {	1099	if (ref $_[0]) {
680	_object_attach @_;	1100	_object_attach @_;
681	} else {	1101	} else {
682	_attach shift->_attach_registry, @_;	1102	_attach shift->_attach_registry, @_;
683	}	1103	}
		1104	_recalc_want;
684	};	1105	};
685		1106
686	# all those should be optimised	1107	# all those should be optimised
687	sub cf::attachable::detach {	1108	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	1109	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	1112	delete $obj->{_attachment}{$name};
692	reattach ($obj);	1113	reattach ($obj);
693	} else {	1114	} else {
694	Carp::croak "cannot, currently, detach class attachments";	1115	Carp::croak "cannot, currently, detach class attachments";
695	}	1116	}
		1117	_recalc_want;
696	};	1118	};
697		1119
698	sub cf::attachable::attached {	1120	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	1121	my ($obj, $name) = @_;
700		1122
…		…
715	";	1137	";
716	die if $@;	1138	die if $@;
717	}	1139	}
718		1140
719	our $override;	1141	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1142	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		1143
722	sub override {	1144	sub override {
723	$override = 1;	1145	$override = 1;
724	@invoke_results = ();	1146	@INVOKE_RESULTS = (@_);
725	}	1147	}
726		1148
727	sub do_invoke {	1149	sub do_invoke {
728	my $event = shift;	1150	my $event = shift;
729	my $callbacks = shift;	1151	my $callbacks = shift;
730		1152
731	@invoke_results = ();	1153	@INVOKE_RESULTS = ();
732		1154
733	local $override;	1155	local $override;
734		1156
735	for (@$callbacks) {	1157	for (@$callbacks) {
736	eval { &{$_->[1]} };	1158	eval { &{$_->[1]} };
737		1159
738	if ($@) {	1160	if ($@) {
739	warn "$@";
740	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1161	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
741	override;	1162	override;
742	}	1163	}
743		1164
744	return 1 if $override;	1165	return 1 if $override;
745	}	1166	}
746		1167
747	0	1168	0
748	}	1169	}
749		1170
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1171	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1172
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1173	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1174
754	Generate an object-specific event with the given arguments.	1175	Generate an object-specific event with the given arguments.
755		1176
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1177	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	1178	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	1179	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1180
760	=back	1181	=back
761		1182
762	=cut	1183	=cut
763		1184
764	#############################################################################	1185	#############################################################################
765	# object support	1186	# object support
		1187
		1188	sub _object_equal($$);
		1189	sub _object_equal($$) {
		1190	my ($a, $b) = @_;
		1191
		1192	return 0 unless (ref $a) eq (ref $b);
		1193
		1194	if ("HASH" eq ref $a) {
		1195	my @ka = keys %$a;
		1196	my @kb = keys %$b;
		1197
		1198	return 0 if @ka != @kb;
		1199
		1200	for (0 .. $#ka) {
		1201	return 0 unless $ka[$_] eq $kb[$_];
		1202	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1203	}
		1204
		1205	} elsif ("ARRAY" eq ref $a) {
		1206
		1207	return 0 if @$a != @$b;
		1208
		1209	for (0 .. $#$a) {
		1210	return 0 unless _object_equal $a->[$_], $b->[$_];
		1211	}
		1212
		1213	} elsif ($a ne $b) {
		1214	return 0;
		1215	}
		1216
		1217	1
		1218	}
		1219
		1220	our $SLOW_MERGES;#d#
		1221	sub _can_merge {
		1222	my ($ob1, $ob2) = @_;
		1223
		1224	++$SLOW_MERGES;#d#
		1225
		1226	# we do the slow way here
		1227	return _object_equal $ob1, $ob2
		1228	}
766		1229
767	sub reattach {	1230	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1231	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1232	my ($obj) = @_;
		1233
		1234	# no longer needed after getting rid of delete_package?
		1235	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		1236
771	my $registry = $obj->registry;	1237	my $registry = $obj->registry;
772		1238
773	@$registry = ();	1239	@$registry = ();
774		1240
…		…
779	for (@$attach) {	1245	for (@$attach) {
780	my ($klass, @attach) = @$_;	1246	my ($klass, @attach) = @$_;
781	_attach $registry, $klass, @attach;	1247	_attach $registry, $klass, @attach;
782	}	1248	}
783	} else {	1249	} else {
784	warn "object uses attachment '$name' that is not available, postponing.\n";	1250	info "object uses attachment '$name' that is not available, postponing.\n";
785	}	1251	}
786	}	1252	}
787	}	1253	}
788		1254
789	cf::attachable->attach (	1255	cf::attachable->attach (
790	prio => -1000000,	1256	prio => -1000000,
791	on_instantiate => sub {	1257	on_instantiate => sub {
792	my ($obj, $data) = @_;	1258	my ($obj, $data) = @_;
793		1259
794	$data = from_json $data;	1260	$data = decode_json $data;
795		1261
796	for (@$data) {	1262	for (@$data) {
797	my ($name, $args) = @$_;	1263	my ($name, $args) = @$_;
798		1264
799	$obj->attach ($name, %{$args || {} });	1265	$obj->attach ($name, %{$args || {} });
…		…
815	sub object_freezer_save {	1281	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1282	my ($filename, $rdata, $objs) = @_;
817		1283
818	sync_job {	1284	sync_job {
819	if (length $$rdata) {	1285	if (length $$rdata) {
		1286	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1287	trace sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1288	$decname, length $$rdata, scalar @$objs
		1289	if $VERBOSE_IO;
822		1290
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1291	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1292	aio_chmod $fh, SAVE_MODE;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1293	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1294	if ($cf::USE_FSYNC) {
		1295	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;
826	aio_fsync $fh;	1296	aio_fsync $fh;
		1297	}
827	close $fh;	1298	aio_close $fh;
828		1299
829	if (@$objs) {	1300	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1301	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	1302	aio_chmod $fh, SAVE_MODE;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1303	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	1304	aio_write $fh, 0, (length $data), $data, 0;
		1305	if ($cf::USE_FSYNC) {
		1306	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;
834	aio_fsync $fh;	1307	aio_fsync $fh;
		1308	}
835	close $fh;	1309	aio_close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1310	aio_rename "$filename.pst~", "$filename.pst";
837	}	1311	}
838	} else {	1312	} else {
839	aio_unlink "$filename.pst";	1313	aio_unlink "$filename.pst";
840	}	1314	}
841		1315
842	aio_rename "$filename~", $filename;	1316	aio_rename "$filename~", $filename;
		1317
		1318	$filename =~ s%/[^/]+$%%;
		1319	aio_pathsync $filename if $cf::USE_FSYNC;
843	} else {	1320	} else {
844	warn "FATAL: $filename~: $!\n";	1321	error "unable to save objects: $filename~: $!\n";
845	}	1322	}
846	} else {	1323	} else {
847	aio_unlink $filename;	1324	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1325	aio_unlink "$filename.pst";
849	}	1326	}
850	}	1327	};
851	}	1328	}
852		1329
853	sub object_freezer_as_string {	1330	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1331	my ($rdata, $objs) = @_;
855		1332
…		…
867	or return;	1344	or return;
868		1345
869	unless (aio_stat "$filename.pst") {	1346	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1347	(aio_load "$filename.pst", $av) >= 0
871	or return;	1348	or return;
		1349
872	$av = eval { (Storable::thaw $av)->{objs} };	1350	my $st = eval { Coro::Storable::thaw $av };
		1351	$av = $st->{objs};
873	}	1352	}
874		1353
		1354	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1355	trace sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1356	$decname, length $data, scalar @{$av || []}
		1357	if $VERBOSE_IO;
		1358
877	return ($data, $av);	1359	($data, $av)
878	}	1360	}
		1361
		1362	=head2 COMMAND CALLBACKS
		1363
		1364	=over 4
		1365
		1366	=cut
879		1367
880	#############################################################################	1368	#############################################################################
881	# command handling &c	1369	# command handling &c
882		1370
883	=item cf::register_command $name => \&callback($ob,$args);	1371	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1384	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1385	}
898		1386
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1387	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1388
901	Register a callbackf ro execution when the client sends an extcmd packet.	1389	Register a callback for execution when the client sends an (synchronous)
		1390	extcmd packet. Ext commands will be processed in the order they are
		1391	received by the server, like other user commands. The first argument is
		1392	the logged-in player. Ext commands can only be processed after a player
		1393	has logged in successfully.
902		1394
903	If the callback returns something, it is sent back as if reply was being	1395	If the callback returns something, it is sent back as if reply was being
904	called.	1396	called.
905		1397
		1398	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1399
		1400	Register a callback for execution when the client sends an (asynchronous)
		1401	exticmd packet. Exti commands are processed by the server as soon as they
		1402	are received, i.e. out of order w.r.t. other commands. The first argument
		1403	is a client socket. Exti commands can be received anytime, even before
		1404	log-in.
		1405
		1406	If the callback returns something, it is sent back as if reply was being
		1407	called.
		1408
906	=cut	1409	=cut
907		1410
908	sub register_extcmd {	1411	sub register_extcmd {
909	my ($name, $cb) = @_;	1412	my ($name, $cb) = @_;
910		1413
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1414	$EXTCMD{$name} = $cb;
915	}	1415	}
		1416
		1417	sub register_exticmd {
		1418	my ($name, $cb) = @_;
		1419
		1420	$EXTICMD{$name} = $cb;
		1421	}
		1422
		1423	use File::Glob ();
916		1424
917	cf::player->attach (	1425	cf::player->attach (
918	on_command => sub {	1426	on_unknown_command => sub {
919	my ($pl, $name, $params) = @_;	1427	my ($pl, $name, $params) = @_;
920		1428
921	my $cb = $COMMAND{$name}	1429	my $cb = $COMMAND{$name}
922	or return;	1430	or return;
923		1431
…		…
928	cf::override;	1436	cf::override;
929	},	1437	},
930	on_extcmd => sub {	1438	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1439	my ($pl, $buf) = @_;
932		1440
933	my $msg = eval { from_json $buf };	1441	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1442
935	if (ref $msg) {	1443	if (ref $msg) {
		1444	my ($type, $reply, @payload) =
		1445	"ARRAY" eq ref $msg
		1446	? @$msg
		1447	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1448
		1449	my @reply;
		1450
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1451	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1452	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1453	}
		1454
		1455	$pl->ext_reply ($reply, @reply)
		1456	if $reply;
		1457
941	} else {	1458	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1459	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1460	}
944		1461
945	cf::override;	1462	cf::override;
946	},	1463	},
947	);	1464	);
948		1465
949	sub register {	1466	# "readahead" all extensions
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {	1467	sub cache_extensions {
956	my ($path) = @_;	1468	my $grp = IO::AIO::aio_group;
957		1469
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1470	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
959	my $base = $1;	1471	for (grep /\.ext$/, @{$_[0]}) {
960	my $pkg = $1;	1472	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}	1473	}
1008	}	1474	};
1009		1475
1010	# remove extcmds	1476	$grp
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}	1477	}
1024		1478
1025	sub load_extensions {	1479	sub load_extensions {
		1480	info "loading extensions...";
		1481
		1482	cf::sync_job {
		1483	my %todo;
		1484
1026	for my $ext (<$LIBDIR/*.ext>) {	1485	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1486	next unless -r $path;
1028	eval {	1487
1029	load_extension $ext;	1488	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1489	my $base = $1;
		1490	my $pkg = $1;
		1491	$pkg =~ s/[^[:word:]]/_/g;
		1492	$pkg = "ext::$pkg";
		1493
		1494	open my $fh, "<:utf8", $path
		1495	or die "$path: $!";
		1496
		1497	my $source = do { local $/; <$fh> };
		1498
		1499	my %ext = (
		1500	path => $path,
		1501	base => $base,
		1502	pkg => $pkg,
		1503	);
		1504
		1505	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1506	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1507
		1508	$ext{source} =
		1509	"package $pkg; use common::sense;\n"
		1510	. "#line 1 \"$path\"\n{\n"
		1511	. $source
		1512	. "\n};\n1";
		1513
		1514	$todo{$base} = \%ext;
		1515	}
		1516
		1517	my $pass = 0;
		1518	my %done;
		1519	while (%todo) {
		1520	my $progress;
		1521
		1522	++$pass;
		1523
		1524	ext:
		1525	while (my ($k, $v) = each %todo) {
		1526	for (split /,\s*/, $v->{meta}{depends}) {
		1527	next ext
		1528	unless exists $done{$_};
		1529	}
		1530
		1531	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1532
		1533	my $active = eval $v->{source};
		1534
		1535	if (length $@) {
		1536	error "$v->{path}: $@\n";
		1537
		1538	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1539	if exists $v->{meta}{mandatory};
		1540
		1541	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1542	delete $todo{$k};
		1543	} else {
		1544	$done{$k} = delete $todo{$k};
		1545	push @EXTS, $v->{pkg};
		1546	$progress = 1;
		1547
		1548	info "$v->{base}: extension inactive.\n"
		1549	unless $active;
		1550	}
1030	1	1551	}
1031	} or warn "$ext not loaded: $@";	1552
		1553	unless ($progress) {
		1554	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1555
		1556	while (my ($k, $v) = each %todo) {
		1557	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1558	if exists $v->{meta}{mandatory};
		1559	}
		1560
		1561	last;
		1562	}
		1563	}
1032	}	1564	};
1033	}	1565	}
1034		1566
1035	#############################################################################	1567	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1568
1038	*cf::mapsupport::on_clean = sub {	1569	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1570
1073	=head2 CORE EXTENSIONS	1571	=head2 CORE EXTENSIONS
1074		1572
1075	Functions and methods that extend core crossfire objects.	1573	Functions and methods that extend core deliantra objects.
1076		1574
1077	=cut	1575	=cut
1078		1576
1079	package cf::player;	1577	package cf::player;
1080		1578
		1579	use Coro::AIO;
		1580
1081	=head3 cf::player	1581	=head3 cf::player
1082		1582
1083	=over 4	1583	=over 4
1084		1584
		1585	=item cf::player::num_playing
		1586
		1587	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1588
		1589	=cut
		1590
		1591	sub num_playing {
		1592	scalar grep
		1593	$_->ob->map
		1594	&& !$_->hidden
		1595	&& !$_->ob->flag (cf::FLAG_WIZ),
		1596	cf::player::list
		1597	}
		1598
1085	=item cf::player::find $login	1599	=item cf::player::find $login
1086		1600
1087	Returns the given player object, loading it if necessary (might block).	1601	Returns the given player object, loading it if necessary (might block).
1088		1602
1089	=cut	1603	=cut
1090		1604
1091	sub playerdir($) {	1605	sub playerdir($) {
1092	cf::localdir	1606	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1607	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1608	}
1098		1609
1099	sub path($) {	1610	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1611	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1612
1102	(playerdir $login) . "/$login.pl"	1613	(playerdir $login) . "/playerdata"
1103	}	1614	}
1104		1615
1105	sub find_active($) {	1616	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1617	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1618	and $cf::PLAYER{$_[0]}->active
…		…
1110		1621
1111	sub exists($) {	1622	sub exists($) {
1112	my ($login) = @_;	1623	my ($login) = @_;
1113		1624
1114	$cf::PLAYER{$login}	1625	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1626	or !aio_stat path $login
1116	}	1627	}
1117		1628
1118	sub find($) {	1629	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1630	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1631	my $login = $_[0];
1121		1632
1122	my $guard = cf::lock_acquire "user_find:$login";	1633	my $guard = cf::lock_acquire "user_find:$login";
1123		1634
1124	$cf::PLAYER{$_[0]} || do {	1635	$cf::PLAYER{$_[0]} || do {
1125	my $pl = load_pl path $login	1636	# rename old playerfiles to new ones
		1637	#TODO: remove when no longer required
		1638	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1639	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1640	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1641	aio_unlink +(playerdir $login) . "/$login.pl";
		1642
		1643	my $f = new_from_file cf::object::thawer path $login
1126	or return;	1644	or return;
		1645
		1646	my $pl = cf::player::load_pl $f
		1647	or return;
		1648
		1649	local $cf::PLAYER_LOADING{$login} = $pl;
		1650	$f->resolve_delayed_derefs;
1127	$cf::PLAYER{$login} = $pl	1651	$cf::PLAYER{$login} = $pl
1128	}	1652	}
1129	}	1653	}
1130	}	1654	}
		1655
		1656	cf::player->attach (
		1657	on_load => sub {
		1658	my ($pl, $path) = @_;
		1659
		1660	# restore slots saved in save, below
		1661	my $slots = delete $pl->{_slots};
		1662
		1663	$pl->ob->current_weapon ($slots->[0]);
		1664	$pl->combat_ob ($slots->[1]);
		1665	$pl->ranged_ob ($slots->[2]);
		1666	},
		1667	);
1131		1668
1132	sub save($) {	1669	sub save($) {
1133	my ($pl) = @_;	1670	my ($pl) = @_;
1134		1671
1135	return if $pl->{deny_save};	1672	return if $pl->{deny_save};
…		…
1137	my $path = path $pl;	1674	my $path = path $pl;
1138	my $guard = cf::lock_acquire "user_save:$path";	1675	my $guard = cf::lock_acquire "user_save:$path";
1139		1676
1140	return if $pl->{deny_save};	1677	return if $pl->{deny_save};
1141		1678
1142	Coro::AIO::aio_mkdir playerdir $pl, 0770;	1679	aio_mkdir playerdir $pl, 0770;
1143	$pl->{last_save} = $cf::RUNTIME;	1680	$pl->{last_save} = $cf::RUNTIME;
1144		1681
		1682	cf::get_slot 0.01;
		1683
		1684	# save slots, to be restored later
		1685	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1686
1145	$pl->save_pl ($path);	1687	$pl->save_pl ($path);
1146	Coro::cede;	1688	cf::cede_to_tick;
1147	}	1689	}
1148		1690
1149	sub new($) {	1691	sub new($) {
1150	my ($login) = @_;	1692	my ($login) = @_;
1151		1693
…		…
1157	$cf::PLAYER{$login} = $self;	1699	$cf::PLAYER{$login} = $self;
1158		1700
1159	$self	1701	$self
1160	}	1702	}
1161		1703
		1704	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1705
		1706	=cut
		1707
		1708	sub send_msg {
		1709	my $ns = shift->ns
		1710	or return;
		1711	$ns->send_msg (@_);
		1712	}
		1713
		1714	=item $pl->quit_character
		1715
		1716	Nukes the player without looking back. If logged in, the connection will
		1717	be destroyed. May block for a long time.
		1718
		1719	=cut
		1720
1162	sub quit_character {	1721	sub quit_character {
1163	my ($pl) = @_;	1722	my ($pl) = @_;
1164		1723
		1724	my $name = $pl->ob->name;
		1725
1165	$pl->{deny_save} = 1;	1726	$pl->{deny_save} = 1;
1166	$pl->password ("*"); # this should lock out the player until we nuked the dir	1727	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1167		1728
1168	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1729	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1169	$pl->deactivate;	1730	$pl->deactivate;
		1731
		1732	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1170	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1733	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1734	ext::highscore::check ($pl->ob);
		1735
1171	$pl->ns->destroy if $pl->ns;	1736	$pl->ns->destroy if $pl->ns;
1172		1737
1173	my $path = playerdir $pl;	1738	my $path = playerdir $pl;
1174	my $temp = "$path~$cf::RUNTIME~deleting~";	1739	my $temp = "$path~$cf::RUNTIME~deleting~";
1175	Coro::AIO::aio_rename $path, $temp;	1740	aio_rename $path, $temp;
1176	delete $cf::PLAYER{$pl->ob->name};	1741	delete $cf::PLAYER{$pl->ob->name};
1177	$pl->destroy;	1742	$pl->destroy;
		1743
		1744	my $prefix = qr<^~\Q$name\E/>;
		1745
		1746	# nuke player maps
		1747	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1748
1178	IO::AIO::aio_rmtree $temp;	1749	IO::AIO::aio_rmtree $temp;
1179	}	1750	}
1180		1751
		1752	=item $pl->kick
		1753
		1754	Kicks a player out of the game. This destroys the connection.
		1755
		1756	=cut
		1757
		1758	sub kick {
		1759	my ($pl, $kicker) = @_;
		1760
		1761	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1762	$pl->killer ("kicked");
		1763	$pl->ns->destroy;
		1764	}
		1765
		1766	=item cf::player::list_logins
		1767
		1768	Returns am arrayref of all valid playernames in the system, can take a
		1769	while and may block, so not sync_job-capable, ever.
		1770
		1771	=cut
		1772
		1773	sub list_logins {
		1774	my $dirs = aio_readdir $PLAYERDIR
		1775	or return [];
		1776
		1777	my @logins;
		1778
		1779	for my $login (@$dirs) {
		1780	my $path = path $login;
		1781
		1782	# a .pst is a dead give-away for a valid player
		1783	# if no pst file found, open and chekc for blocked users
		1784	if (aio_stat "$path.pst") {
		1785	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1786	aio_read $fh, 0, 512, my $buf, 0 or next;
		1787	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1788	}
		1789
		1790	utf8::decode $login;
		1791	push @logins, $login;
		1792	}
		1793
		1794	\@logins
		1795	}
		1796
		1797	=item $player->maps
		1798
		1799	=item cf::player::maps $login
		1800
		1801	Returns an arrayref of map paths that are private for this
		1802	player. May block.
		1803
		1804	=cut
		1805
		1806	sub maps($) {
		1807	my ($pl) = @_;
		1808
		1809	$pl = ref $pl ? $pl->ob->name : $pl;
		1810
		1811	my $files = aio_readdir playerdir $pl
		1812	or return;
		1813
		1814	my @paths;
		1815
		1816	for (@$files) {
		1817	utf8::decode $_;
		1818	next if /\.(?:pl|pst)$/;
		1819	next unless /^$PATH_SEP/o;
		1820
		1821	push @paths, cf::map::normalise "~$pl/$_";
		1822	}
		1823
		1824	\@paths
		1825	}
		1826
		1827	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1828
		1829	Expand deliantra pod fragments into protocol xml.
		1830
1181	=item $player->ext_reply ($msgid, $msgtype, %msg)	1831	=item $player->ext_reply ($msgid, @msg)
1182		1832
1183	Sends an ext reply to the player.	1833	Sends an ext reply to the player.
1184		1834
1185	=cut	1835	=cut
1186		1836
1187	sub ext_reply($$$%) {	1837	sub ext_reply($$@) {
1188	my ($self, $id, %msg) = @_;	1838	my ($self, $id, @msg) = @_;
1189		1839
1190	$msg{msgid} = $id;	1840	$self->ns->ext_reply ($id, @msg)
1191
1192	$self->send ("ext " . cf::to_json \%msg);
1193	}	1841	}
1194		1842
1195	package cf;	1843	=item $player->ext_msg ($type, @msg)
		1844
		1845	Sends an ext event to the client.
		1846
		1847	=cut
		1848
		1849	sub ext_msg($$@) {
		1850	my ($self, $type, @msg) = @_;
		1851
		1852	$self->ns->ext_msg ($type, @msg);
		1853	}
		1854
		1855	=head3 cf::region
		1856
		1857	=over 4
		1858
		1859	=cut
		1860
		1861	package cf::region;
		1862
		1863	=item cf::region::find_by_path $path
		1864
		1865	Tries to decuce the likely region for a map knowing only its path.
		1866
		1867	=cut
		1868
		1869	sub find_by_path($) {
		1870	my ($path) = @_;
		1871
		1872	$path =~ s/^~[^\/]*//; # skip ~login
		1873
		1874	my ($match, $specificity);
		1875
		1876	for my $region (list) {
		1877	if ($region->{match} && $path =~ $region->{match}) {
		1878	($match, $specificity) = ($region, $region->specificity)
		1879	if $region->specificity > $specificity;
		1880	}
		1881	}
		1882
		1883	$match
		1884	}
1196		1885
1197	=back	1886	=back
1198
1199		1887
1200	=head3 cf::map	1888	=head3 cf::map
1201		1889
1202	=over 4	1890	=over 4
1203		1891
…		…
1206	package cf::map;	1894	package cf::map;
1207		1895
1208	use Fcntl;	1896	use Fcntl;
1209	use Coro::AIO;	1897	use Coro::AIO;
1210		1898
		1899	use overload
		1900	'""' => \&as_string,
		1901	fallback => 1;
		1902
1211	our $MAX_RESET = 3600;	1903	our $MAX_RESET = 3600;
1212	our $DEFAULT_RESET = 3000;	1904	our $DEFAULT_RESET = 3000;
1213		1905
1214	sub generate_random_map {	1906	sub generate_random_map {
		1907	my ($self, $rmp) = @_;
		1908
		1909	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1910
		1911	$self->_create_random_map ($rmp);
		1912	}
		1913
		1914	=item cf::map->register ($regex, $prio)
		1915
		1916	Register a handler for the map path matching the given regex at the
		1917	givne priority (higher is better, built-in handlers have priority 0, the
		1918	default).
		1919
		1920	=cut
		1921
		1922	sub register {
		1923	my (undef, $regex, $prio) = @_;
		1924	my $pkg = caller;
		1925
		1926	push @{"$pkg\::ISA"}, __PACKAGE__;
		1927
		1928	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1929	}
		1930
		1931	# also paths starting with '/'
		1932	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1933
		1934	sub thawer_merge {
		1935	my ($self, $merge) = @_;
		1936
		1937	# we have to keep some variables in memory intact
		1938	local $self->{path};
		1939	local $self->{load_path};
		1940
		1941	$self->SUPER::thawer_merge ($merge);
		1942	}
		1943
		1944	sub normalise {
1215	my ($path, $rmp) = @_;	1945	my ($path, $base) = @_;
1216		1946
1217	# mit "rum" bekleckern, nicht	1947	$path = "$path"; # make sure it's a string
1218	cf::map::_create_random_map	1948
		1949	$path =~ s/\.map$//;
		1950
		1951	# map plan:
		1952	#
		1953	# /! non-realised random map exit (special hack!)
		1954	# {... are special paths that are not being touched
		1955	# ?xxx/... are special absolute paths
		1956	# ?random/... random maps
		1957	# /... normal maps
		1958	# ~user/... per-player map of a specific user
		1959
		1960	$path =~ s/$PATH_SEP/\//go;
		1961
		1962	# treat it as relative path if it starts with
		1963	# something that looks reasonable
		1964	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1965	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1966
		1967	$base =~ s{[^/]+/?$}{};
		1968	$path = "$base/$path";
		1969	}
		1970
		1971	for ($path) {
		1972	redo if s{/\.?/}{/};
		1973	redo if s{/[^/]+/\.\./}{/};
		1974	}
		1975
1219	$path,	1976	$path
1220	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1221	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1222	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1223	$rmp->{exit_on_final_map},
1224	$rmp->{xsize}, $rmp->{ysize},
1225	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1226	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1227	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1228	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1229	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1230	(cf::region::find $rmp->{region})
1231	}	1977	}
1232		1978
1233	# and all this just because we cannot iterate over	1979	sub new_from_path {
1234	# all maps in C++...	1980	my (undef, $path, $base) = @_;
1235	sub change_all_map_light {	1981
		1982	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1983
		1984	$path = normalise $path, $base;
		1985
		1986	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1987	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1988	my $self = bless cf::map::new, $pkg;
		1989	$self->{path} = $path; $self->path ($path);
		1990	$self->init; # pass $1 etc.
		1991	return $self;
		1992	}
		1993	}
		1994
		1995	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1996	()
		1997	}
		1998
		1999	# may re-bless or do other evil things
		2000	sub init {
1236	my ($change) = @_;	2001	my ($self) = @_;
1237		2002
1238	$_->change_map_light ($change)	2003	$self
1239	for grep $_->outdoor, values %cf::MAP;
1240	}	2004	}
1241		2005
		2006	sub as_string {
		2007	my ($self) = @_;
		2008
		2009	"$self->{path}"
		2010	}
		2011
		2012	# the displayed name, this is a one way mapping
		2013	sub visible_name {
		2014	&as_string
		2015	}
		2016
		2017	# the original (read-only) location
		2018	sub load_path {
		2019	my ($self) = @_;
		2020
		2021	"$MAPDIR/$self->{path}.map"
		2022	}
		2023
		2024	# the temporary/swap location
		2025	sub save_path {
		2026	my ($self) = @_;
		2027
		2028	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2029	"$TMPDIR/$path.map"
		2030	}
		2031
		2032	# the unique path, undef == no special unique path
		2033	sub uniq_path {
		2034	my ($self) = @_;
		2035
		2036	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2037	"$UNIQUEDIR/$path"
		2038	}
		2039
		2040	sub decay_objects {
		2041	my ($self) = @_;
		2042
		2043	return if $self->{deny_reset};
		2044
		2045	$self->do_decay_objects;
		2046	}
		2047
		2048	sub unlink_save {
		2049	my ($self) = @_;
		2050
		2051	utf8::encode (my $save = $self->save_path);
		2052	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2053	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2054	}
		2055
1242	sub try_load_header($) {	2056	sub load_header_from($) {
1243	my ($path) = @_;	2057	my ($self, $path) = @_;
1244		2058
1245	utf8::encode $path;	2059	utf8::encode $path;
1246	aio_open $path, O_RDONLY, 0	2060	my $f = new_from_file cf::object::thawer $path
1247	or return;	2061	or return;
1248		2062
1249	my $map = cf::map::new	2063	$self->_load_header ($f)
1250	or return;	2064	or return;
1251		2065
1252	# for better error messages only, will be overwritten	2066	local $MAP_LOADING{$self->{path}} = $self;
1253	$map->path ($path);	2067	$f->resolve_delayed_derefs;
1254		2068
1255	$map->load_header ($path)	2069	$self->{load_path} = $path;
		2070
		2071	1
		2072	}
		2073
		2074	# used to laod the header of an original map
		2075	sub load_header_orig {
		2076	my ($self) = @_;
		2077
		2078	$self->load_header_from ($self->load_path)
		2079	}
		2080
		2081	# used to laod the header of an instantiated map
		2082	sub load_header_temp {
		2083	my ($self) = @_;
		2084
		2085	$self->load_header_from ($self->save_path)
		2086	}
		2087
		2088	# called after loading the header from an instantiated map
		2089	sub prepare_temp {
		2090	my ($self) = @_;
		2091
		2092	$self->last_access ((delete $self->{last_access})
		2093	|| $cf::RUNTIME); #d#
		2094	# safety
		2095	$self->{instantiate_time} = $cf::RUNTIME
		2096	if $self->{instantiate_time} > $cf::RUNTIME;
		2097	}
		2098
		2099	# called after loading the header from an original map
		2100	sub prepare_orig {
		2101	my ($self) = @_;
		2102
		2103	$self->{load_original} = 1;
		2104	$self->{instantiate_time} = $cf::RUNTIME;
		2105	$self->last_access ($cf::RUNTIME);
		2106	$self->instantiate;
		2107	}
		2108
		2109	sub load_header {
		2110	my ($self) = @_;
		2111
		2112	if ($self->load_header_temp) {
		2113	$self->prepare_temp;
		2114	} else {
		2115	$self->load_header_orig
1256	or return;	2116	or return;
		2117	$self->prepare_orig;
		2118	}
1257		2119
1258	$map->{load_path} = $path;	2120	$self->{deny_reset} = 1
		2121	if $self->no_reset;
1259		2122
1260	$map	2123	$self->default_region (cf::region::find_by_path $self->{path})
		2124	unless $self->default_region;
		2125
		2126	1
1261	}	2127	}
1262		2128
1263	sub find;	2129	sub find;
1264	sub find {	2130	sub find {
1265	my ($path, $origin) = @_;	2131	my ($path, $origin) = @_;
1266		2132
1267	#warn "find<$path,$origin>\n";#d#	2133	cf::cede_to_tick;
1268		2134
1269	$path = new cf::path $path, $origin && $origin->path;	2135	$path = normalise $path, $origin;
1270	my $key = $path->as_string;
1271		2136
1272	cf::lock_wait "map_find:$key";	2137	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1273
1274	$cf::MAP{$key} || do {
1275	my $guard = cf::lock_acquire "map_find:$key";	2138	my $guard2 = cf::lock_acquire "map_find:$path";
1276		2139
1277	# do it the slow way	2140	$cf::MAP{$path} || do {
1278	my $map = try_load_header $path->save_path;	2141	my $map = new_from_path cf::map $path
1279
1280	Coro::cede;
1281
1282	if ($map) {
1283	$map->last_access ((delete $map->{last_access})
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$map->{instantiate_time} = $cf::RUNTIME
1287	if $map->{instantiate_time} > $cf::RUNTIME;
1288	} else {
1289	if (my $rmp = $path->random_map_params) {
1290	$map = generate_random_map $key, $rmp;
1291	} else {
1292	$map = try_load_header $path->load_path;
1293	}
1294
1295	$map or return;	2142	or return;
1296		2143
1297	$map->{load_original} = 1;
1298	$map->{instantiate_time} = $cf::RUNTIME;
1299	$map->last_access ($cf::RUNTIME);
1300	$map->instantiate;
1301
1302	# per-player maps become, after loading, normal maps
1303	$map->per_player (0) if $path->{user_rel};
1304	}
1305
1306	$map->path ($key);
1307	$map->{path} = $path;
1308	$map->{last_save} = $cf::RUNTIME;	2144	$map->{last_save} = $cf::RUNTIME;
1309		2145
1310	Coro::cede;	2146	$map->load_header
		2147	or return;
1311		2148
1312	if ($map->should_reset) {	2149	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2150	# doing this can freeze the server in a sync job, obviously
		2151	#$cf::WAIT_FOR_TICK->wait;
		2152	undef $guard2;
		2153	undef $guard1;
1313	$map->reset;	2154	$map->reset;
1314	undef $guard;
1315	$map = find $path	2155	return find $path;
1316	or return;
1317	}	2156	}
1318		2157
1319	$cf::MAP{$key} = $map	2158	$cf::MAP{$path} = $map
1320	}	2159	}
1321	}	2160	}
		2161
		2162	sub pre_load { }
		2163	#sub post_load { } # XS
1322		2164
1323	sub load {	2165	sub load {
1324	my ($self) = @_;	2166	my ($self) = @_;
1325		2167
		2168	local $self->{deny_reset} = 1; # loading can take a long time
		2169
1326	my $path = $self->{path};	2170	my $path = $self->{path};
		2171
		2172	{
1327	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2173	my $guard = cf::lock_acquire "map_data:$path";
1328		2174
1329	return if $self->in_memory != cf::MAP_SWAPPED;	2175	return unless $self->valid;
		2176	return unless $self->state == cf::MAP_SWAPPED;
1330		2177
1331	$self->in_memory (cf::MAP_LOADING);
1332
1333	$self->alloc;	2178	$self->alloc;
1334	$self->load_objects ($self->{load_path}, 1)	2179
		2180	$self->pre_load;
		2181	cf::cede_to_tick;
		2182
		2183	if (exists $self->{load_path}) {
		2184	my $f = new_from_file cf::object::thawer $self->{load_path};
		2185	$f->skip_block;
		2186	$self->_load_objects ($f)
1335	or return;	2187	or return;
1336		2188
1337	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2189	$self->post_load_original
1338	if delete $self->{load_original};	2190	if delete $self->{load_original};
1339		2191
1340	if (my $uniq = $path->uniq_path) {	2192	if (my $uniq = $self->uniq_path) {
1341	utf8::encode $uniq;	2193	utf8::encode $uniq;
1342	if (aio_open $uniq, O_RDONLY, 0) {	2194	unless (aio_stat $uniq) {
		2195	if (my $f = new_from_file cf::object::thawer $uniq) {
1343	$self->clear_unique_items;	2196	$self->clear_unique_items;
1344	$self->load_objects ($uniq, 0);	2197	$self->_load_objects ($f);
		2198	$f->resolve_delayed_derefs;
		2199	}
		2200	}
1345	}	2201	}
1346	}
1347		2202
1348	Coro::cede;	2203	$f->resolve_delayed_derefs;
		2204	} else {
		2205	$self->post_load_original
		2206	if delete $self->{load_original};
		2207	}
1349		2208
		2209	$self->state (cf::MAP_INACTIVE);
		2210
		2211	cf::cede_to_tick;
1350	# now do the right thing for maps	2212	# now do the right thing for maps
1351	$self->link_multipart_objects;	2213	$self->link_multipart_objects;
1352
1353	if ($self->{path}->is_style_map) {
1354	$self->{deny_save} = 1;
1355	$self->{deny_reset} = 1;
1356	} else {
1357	$self->fix_auto_apply;
1358	$self->decay_objects;
1359	$self->update_buttons;
1360	$self->set_darkness_map;
1361	$self->difficulty ($self->estimate_difficulty)	2214	$self->difficulty ($self->estimate_difficulty)
1362	unless $self->difficulty;	2215	unless $self->difficulty;
1363	$self->activate;	2216	cf::cede_to_tick;
		2217
		2218	unless ($self->{deny_activate}) {
		2219	$self->decay_objects;
		2220	$self->fix_auto_apply;
		2221	$self->update_buttons;
		2222	cf::cede_to_tick;
		2223	#$self->activate; # no longer activate maps automatically
		2224	}
		2225
		2226	$self->{last_save} = $cf::RUNTIME;
		2227	$self->last_access ($cf::RUNTIME);
		2228	}
		2229
		2230	$self->post_load;
		2231
1364	}	2232	1
		2233	}
1365		2234
1366	Coro::cede;	2235	# customize the map for a given player, i.e.
		2236	# return the _real_ map. used by e.g. per-player
		2237	# maps to change the path to ~playername/mappath
		2238	sub customise_for {
		2239	my ($self, $ob) = @_;
1367		2240
1368	$self->in_memory (cf::MAP_IN_MEMORY);	2241	return find "~" . $ob->name . "/" . $self->{path}
		2242	if $self->per_player;
		2243
		2244	# return find "?party/" . $ob->name . "/" . $self->{path}
		2245	# if $self->per_party;
		2246
		2247	$self
		2248	}
		2249
		2250	# find and load all maps in the 3x3 area around a map
		2251	sub load_neighbours {
		2252	my ($map) = @_;
		2253
		2254	my @neigh; # diagonal neighbours
		2255
		2256	for (0 .. 3) {
		2257	my $neigh = $map->tile_path ($_)
		2258	or next;
		2259	$neigh = find $neigh, $map
		2260	or next;
		2261	$neigh->load;
		2262
		2263	# now find the diagonal neighbours
		2264	push @neigh,
		2265	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2266	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2267	}
		2268
		2269	for (grep defined $_->[0], @neigh) {
		2270	my ($path, $origin) = @$_;
		2271	my $neigh = find $path, $origin
		2272	or next;
		2273	$neigh->load;
		2274	}
1369	}	2275	}
1370		2276
1371	sub find_sync {	2277	sub find_sync {
1372	my ($path, $origin) = @_;	2278	my ($path, $origin) = @_;
1373		2279
1374	cf::sync_job { cf::map::find $path, $origin }	2280	# it's a bug to call this from the main context
		2281	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2282	if $Coro::current == $Coro::main;
		2283
		2284	find $path, $origin
1375	}	2285	}
1376		2286
1377	sub do_load_sync {	2287	sub do_load_sync {
1378	my ($map) = @_;	2288	my ($map) = @_;
1379		2289
1380	cf::sync_job { $map->load };	2290	# it's a bug to call this from the main context
		2291	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2292	if $Coro::current == $Coro::main;
		2293
		2294	$map->load;
		2295	}
		2296
		2297	our %MAP_PREFETCH;
		2298	our $MAP_PREFETCHER = undef;
		2299
		2300	sub find_async {
		2301	my ($path, $origin, $load) = @_;
		2302
		2303	$path = normalise $path, $origin;
		2304
		2305	if (my $map = $cf::MAP{$path}) {
		2306	return $map if !$load || $map->linkable;
		2307	}
		2308
		2309	$MAP_PREFETCH{$path} |= $load;
		2310
		2311	$MAP_PREFETCHER ||= cf::async {
		2312	$Coro::current->{desc} = "map prefetcher";
		2313
		2314	while (%MAP_PREFETCH) {
		2315	while (my ($k, $v) = each %MAP_PREFETCH) {
		2316	if (my $map = find $k) {
		2317	$map->load if $v;
		2318	}
		2319
		2320	delete $MAP_PREFETCH{$k};
		2321	}
		2322	}
		2323	undef $MAP_PREFETCHER;
		2324	};
		2325	$MAP_PREFETCHER->prio (6);
		2326
		2327	()
		2328	}
		2329
		2330	# common code, used by both ->save and ->swapout
		2331	sub _save {
		2332	my ($self) = @_;
		2333
		2334	$self->{last_save} = $cf::RUNTIME;
		2335
		2336	return unless $self->dirty;
		2337
		2338	my $save = $self->save_path; utf8::encode $save;
		2339	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2340
		2341	$self->{load_path} = $save;
		2342
		2343	return if $self->{deny_save};
		2344
		2345	local $self->{last_access} = $self->last_access;#d#
		2346
		2347	cf::async {
		2348	$Coro::current->{desc} = "map player save";
		2349	$_->contr->save for $self->players;
		2350	};
		2351
		2352	cf::get_slot 0.02;
		2353
		2354	if ($uniq) {
		2355	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2356	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2357	} else {
		2358	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2359	}
1381	}	2360	}
1382		2361
1383	sub save {	2362	sub save {
1384	my ($self) = @_;	2363	my ($self) = @_;
1385		2364
1386	my $lock = cf::lock_acquire "map_data:" . $self->path;	2365	my $lock = cf::lock_acquire "map_data:$self->{path}";
1387		2366
1388	$self->{last_save} = $cf::RUNTIME;	2367	$self->_save;
1389
1390	return unless $self->dirty;
1391
1392	my $save = $self->{path}->save_path; utf8::encode $save;
1393	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1394
1395	$self->{load_path} = $save;
1396
1397	return if $self->{deny_save};
1398
1399	local $self->{last_access} = $self->last_access;#d#
1400
1401	cf::async {
1402	$_->contr->save for $self->players;
1403	};
1404
1405	if ($uniq) {
1406	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1407	$self->save_objects ($uniq, cf::IO_UNIQUES);
1408	} else {
1409	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1410	}
1411	}	2368	}
1412		2369
1413	sub swap_out {	2370	sub swap_out {
1414	my ($self) = @_;	2371	my ($self) = @_;
1415		2372
1416	# save first because save cedes
1417	$self->save;
1418
1419	my $lock = cf::lock_acquire "map_data:" . $self->path;	2373	my $lock = cf::lock_acquire "map_data:$self->{path}";
1420		2374
		2375	return if !$self->linkable;
		2376	return if $self->{deny_save};
1421	return if $self->players;	2377	return if $self->players;
1422	return if $self->in_memory != cf::MAP_IN_MEMORY;
1423	return if $self->{deny_save};
1424		2378
		2379	# first deactivate the map and "unlink" it from the core
		2380	$self->deactivate;
		2381	$_->clear_links_to ($self) for values %cf::MAP;
		2382	$self->state (cf::MAP_SWAPPED);
		2383
		2384	# then atomically save
		2385	$self->_save;
		2386
		2387	# then free the map
1425	$self->clear;	2388	$self->clear;
1426	$self->in_memory (cf::MAP_SWAPPED);
1427	}	2389	}
1428		2390
1429	sub reset_at {	2391	sub reset_at {
1430	my ($self) = @_;	2392	my ($self) = @_;
1431		2393
1432	# TODO: safety, remove and allow resettable per-player maps	2394	# TODO: safety, remove and allow resettable per-player maps
1433	return 1e99 if $self->{path}{user_rel};
1434	return 1e99 if $self->{deny_reset};	2395	return 1e99 if $self->{deny_reset};
1435		2396
1436	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2397	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1437	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2398	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1438		2399
…		…
1443	my ($self) = @_;	2404	my ($self) = @_;
1444		2405
1445	$self->reset_at <= $cf::RUNTIME	2406	$self->reset_at <= $cf::RUNTIME
1446	}	2407	}
1447		2408
1448	sub unlink_save {
1449	my ($self) = @_;
1450
1451	utf8::encode (my $save = $self->{path}->save_path);
1452	aioreq_pri 3; IO::AIO::aio_unlink $save;
1453	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1454	}
1455
1456	sub rename {
1457	my ($self, $new_path) = @_;
1458
1459	$self->unlink_save;
1460
1461	delete $cf::MAP{$self->path};
1462	$self->{path} = new cf::path $new_path;
1463	$self->path ($self->{path}->as_string);
1464	$cf::MAP{$self->path} = $self;
1465
1466	$self->save;
1467	}
1468
1469	sub reset {	2409	sub reset {
1470	my ($self) = @_;	2410	my ($self) = @_;
1471		2411
1472	my $lock = cf::lock_acquire "map_data:" . $self->path;	2412	my $lock = cf::lock_acquire "map_data:$self->{path}";
1473		2413
1474	return if $self->players;	2414	return if $self->players;
1475	return if $self->{path}{user_rel};#d#
1476		2415
1477	warn "resetting map ", $self->path;#d#	2416	cf::trace "resetting map ", $self->path, "\n";
		2417
		2418	$self->state (cf::MAP_SWAPPED);
		2419
		2420	# need to save uniques path
		2421	unless ($self->{deny_save}) {
		2422	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2423
		2424	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2425	if $uniq;
		2426	}
1478		2427
1479	delete $cf::MAP{$self->path};	2428	delete $cf::MAP{$self->path};
1480		2429
		2430	$self->deactivate;
1481	$_->clear_links_to ($self) for values %cf::MAP;	2431	$_->clear_links_to ($self) for values %cf::MAP;
		2432	$self->clear;
1482		2433
1483	$self->unlink_save;	2434	$self->unlink_save;
1484	$self->destroy;	2435	$self->destroy;
1485	}	2436	}
1486		2437
1487	my $nuke_counter = "aaaa";	2438	my $nuke_counter = "aaaa";
1488		2439
1489	sub nuke {	2440	sub nuke {
1490	my ($self) = @_;	2441	my ($self) = @_;
1491		2442
		2443	{
		2444	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2445
		2446	delete $cf::MAP{$self->path};
		2447
		2448	$self->unlink_save;
		2449
		2450	bless $self, "cf::map::wrap";
		2451	delete $self->{deny_reset};
1492	$self->{deny_save} = 1;	2452	$self->{deny_save} = 1;
1493	$self->reset_timeout (1);	2453	$self->reset_timeout (1);
1494	$self->rename ("{nuke}/" . ($nuke_counter++));	2454	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2455
		2456	$cf::MAP{$self->path} = $self;
		2457	}
		2458
1495	$self->reset; # polite request, might not happen	2459	$self->reset; # polite request, might not happen
1496	}	2460	}
1497		2461
1498	sub customise_for {	2462	=item $maps = cf::map::tmp_maps
1499	my ($map, $ob) = @_;
1500		2463
1501	if ($map->per_player) {	2464	Returns an arrayref with all map paths of currently instantiated and saved
1502	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2465	maps. May block.
		2466
		2467	=cut
		2468
		2469	sub tmp_maps() {
1503	}	2470	[
1504		2471	map {
1505	$map	2472	utf8::decode $_;
		2473	/\.map$/
		2474	? normalise $_
		2475	: ()
		2476	} @{ aio_readdir $TMPDIR or [] }
		2477	]
1506	}	2478	}
1507		2479
1508	sub emergency_save {	2480	=item $maps = cf::map::random_maps
1509	my $freeze_guard = cf::freeze_mainloop;
1510		2481
1511	warn "enter emergency perl save\n";	2482	Returns an arrayref with all map paths of currently instantiated and saved
		2483	random maps. May block.
1512		2484
1513	cf::sync_job {	2485	=cut
1514	warn "begin emergency player save\n";
1515	$_->save for values %cf::PLAYER;
1516	warn "end emergency player save\n";
1517		2486
1518	warn "begin emergency map save\n";	2487	sub random_maps() {
1519	$_->save for values %cf::MAP;	2488	[
1520	warn "end emergency map save\n";	2489	map {
		2490	utf8::decode $_;
		2491	/\.map$/
		2492	? normalise "?random/$_"
		2493	: ()
		2494	} @{ aio_readdir $RANDOMDIR or [] }
		2495	]
		2496	}
		2497
		2498	=item cf::map::unique_maps
		2499
		2500	Returns an arrayref of paths of all shared maps that have
		2501	instantiated unique items. May block.
		2502
		2503	=cut
		2504
		2505	sub unique_maps() {
		2506	[
		2507	map {
		2508	utf8::decode $_;
		2509	s/\.map$//; # TODO future compatibility hack
		2510	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2511	? ()
		2512	: normalise $_
		2513	} @{ aio_readdir $UNIQUEDIR or [] }
		2514	]
		2515	}
		2516
		2517	=item cf::map::static_maps
		2518
		2519	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2520	file in the shared directory excluding F</styles> and F</editor>). May
		2521	block.
		2522
		2523	=cut
		2524
		2525	sub static_maps() {
		2526	my @dirs = "";
		2527	my @maps;
		2528
		2529	while (@dirs) {
		2530	my $dir = shift @dirs;
		2531
		2532	next if $dir eq "/styles" || $dir eq "/editor";
		2533
		2534	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2535	or return;
		2536
		2537	for (@$files) {
		2538	s/\.map$// or next;
		2539	utf8::decode $_;
		2540	push @maps, "$dir/$_";
		2541	}
		2542
		2543	push @dirs, map "$dir/$_", @$dirs;
1521	};	2544	}
1522		2545
1523	warn "leave emergency perl save\n";	2546	\@maps
		2547	}
		2548
		2549	=back
		2550
		2551	=head3 cf::object
		2552
		2553	=cut
		2554
		2555	package cf::object;
		2556
		2557	=over 4
		2558
		2559	=item $ob->inv_recursive
		2560
		2561	Returns the inventory of the object I<and> their inventories, recursively,
		2562	but I<not> the object itself.
		2563
		2564	=cut
		2565
		2566	sub inv_recursive_;
		2567	sub inv_recursive_ {
		2568	map { $_, inv_recursive_ $_->inv } @_
		2569	}
		2570
		2571	sub inv_recursive {
		2572	inv_recursive_ inv $_[0]
		2573	}
		2574
		2575	=item $ref = $ob->ref
		2576
		2577	Creates and returns a persistent reference to an object that can be stored as a string.
		2578
		2579	=item $ob = cf::object::deref ($refstring)
		2580
		2581	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2582	even if the object actually exists. May block.
		2583
		2584	=cut
		2585
		2586	sub deref {
		2587	my ($ref) = @_;
		2588
		2589	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2590	my ($uuid, $name) = ($1, $2);
		2591	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2592	or return;
		2593	$pl->ob->uuid eq $uuid
		2594	or return;
		2595
		2596	$pl->ob
		2597	} else {
		2598	warn "$ref: cannot resolve object reference\n";
		2599	undef
		2600	}
1524	}	2601	}
1525		2602
1526	package cf;	2603	package cf;
1527		2604
1528	=back	2605	=back
1529
1530		2606
1531	=head3 cf::object::player	2607	=head3 cf::object::player
1532		2608
1533	=over 4	2609	=over 4
1534		2610
…		…
1537	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2613	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1538	can be C<undef>. Does the right thing when the player is currently in a	2614	can be C<undef>. Does the right thing when the player is currently in a
1539	dialogue with the given NPC character.	2615	dialogue with the given NPC character.
1540		2616
1541	=cut	2617	=cut
		2618
		2619	our $SAY_CHANNEL = {
		2620	id => "say",
		2621	title => "Map",
		2622	reply => "say ",
		2623	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2624	};
		2625
		2626	our $CHAT_CHANNEL = {
		2627	id => "chat",
		2628	title => "Chat",
		2629	reply => "chat ",
		2630	tooltip => "Player chat and shouts, global to the server.",
		2631	};
1542		2632
1543	# rough implementation of a future "reply" method that works	2633	# rough implementation of a future "reply" method that works
1544	# with dialog boxes.	2634	# with dialog boxes.
1545	#TODO: the first argument must go, split into a $npc->reply_to ( method	2635	#TODO: the first argument must go, split into a $npc->reply_to ( method
1546	sub cf::object::player::reply($$$;$) {	2636	sub cf::object::player::reply($$$;$) {
…		…
1548		2638
1549	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2639	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1550		2640
1551	if ($self->{record_replies}) {	2641	if ($self->{record_replies}) {
1552	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2642	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2643
1553	} else {	2644	} else {
		2645	my $pl = $self->contr;
		2646
		2647	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2648	my $dialog = $pl->{npc_dialog};
		2649	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2650
		2651	} else {
1554	$msg = $npc->name . " says: $msg" if $npc;	2652	$msg = $npc->name . " says: $msg" if $npc;
1555	$self->message ($msg, $flags);	2653	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2654	}
1556	}	2655	}
		2656	}
		2657
		2658	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2659
		2660	=cut
		2661
		2662	sub cf::object::send_msg {
		2663	my $pl = shift->contr
		2664	or return;
		2665	$pl->send_msg (@_);
1557	}	2666	}
1558		2667
1559	=item $player_object->may ("access")	2668	=item $player_object->may ("access")
1560		2669
1561	Returns wether the given player is authorized to access resource "access"	2670	Returns wether the given player is authorized to access resource "access"
…		…
1574		2683
1575	=item $player_object->enter_link	2684	=item $player_object->enter_link
1576		2685
1577	Freezes the player and moves him/her to a special map (C<{link}>).	2686	Freezes the player and moves him/her to a special map (C<{link}>).
1578		2687
1579	The player should be reaosnably safe there for short amounts of time. You	2688	The player should be reasonably safe there for short amounts of time (e.g.
1580	I<MUST> call C<leave_link> as soon as possible, though.	2689	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2690	though, as the player cannot control the character while it is on the link
		2691	map.
		2692
		2693	Will never block.
1581		2694
1582	=item $player_object->leave_link ($map, $x, $y)	2695	=item $player_object->leave_link ($map, $x, $y)
1583		2696
1584	Moves the player out of the specila link map onto the given map. If the	2697	Moves the player out of the special C<{link}> map onto the specified
1585	map is not valid (or omitted), the player will be moved back to the	2698	map. If the map is not valid (or omitted), the player will be moved back
1586	location he/she was before the call to C<enter_link>, or, if that fails,	2699	to the location he/she was before the call to C<enter_link>, or, if that
1587	to the emergency map position.	2700	fails, to the emergency map position.
1588		2701
1589	Might block.	2702	Might block.
1590		2703
1591	=cut	2704	=cut
		2705
		2706	sub link_map {
		2707	unless ($LINK_MAP) {
		2708	$LINK_MAP = cf::map::find "{link}"
		2709	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2710	$LINK_MAP->load;
		2711	}
		2712
		2713	$LINK_MAP
		2714	}
1592		2715
1593	sub cf::object::player::enter_link {	2716	sub cf::object::player::enter_link {
1594	my ($self) = @_;	2717	my ($self) = @_;
1595		2718
1596	$self->deactivate_recursive;	2719	$self->deactivate_recursive;
1597		2720
1598	return if $self->map == $LINK_MAP;	2721	++$self->{_link_recursion};
		2722
		2723	return if UNIVERSAL::isa $self->map, "ext::map_link";
1599		2724
1600	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2725	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1601	if $self->map;	2726	if $self->map && $self->map->{path} ne "{link}";
1602		2727
1603	$self->enter_map ($LINK_MAP, 20, 20);	2728	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1604	}	2729	}
1605		2730
1606	sub cf::object::player::leave_link {	2731	sub cf::object::player::leave_link {
1607	my ($self, $map, $x, $y) = @_;	2732	my ($self, $map, $x, $y) = @_;
		2733
		2734	return unless $self->contr->active;
1608		2735
1609	my $link_pos = delete $self->{_link_pos};	2736	my $link_pos = delete $self->{_link_pos};
1610		2737
1611	unless ($map) {	2738	unless ($map) {
1612	# restore original map position	2739	# restore original map position
…		…
1623	($x, $y) = (-1, -1)	2750	($x, $y) = (-1, -1)
1624	unless (defined $x) && (defined $y);	2751	unless (defined $x) && (defined $y);
1625		2752
1626	# use -1 or undef as default coordinates, not 0, 0	2753	# use -1 or undef as default coordinates, not 0, 0
1627	($x, $y) = ($map->enter_x, $map->enter_y)	2754	($x, $y) = ($map->enter_x, $map->enter_y)
1628	if $x <=0 && $y <= 0;	2755	if $x <= 0 && $y <= 0;
1629		2756
1630	$map->load;	2757	$map->load;
		2758	$map->load_neighbours;
1631		2759
1632	return unless $self->contr->active;	2760	return unless $self->contr->active;
		2761
		2762	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2763	if ($self->enter_map ($map, $x, $y)) {
		2764	# entering was successful
		2765	delete $self->{_link_recursion};
		2766	# only activate afterwards, to support waiting in hooks
1633	$self->activate_recursive;	2767	$self->activate_recursive;
1634	$self->enter_map ($map, $x, $y);
1635	}
1636
1637	cf::player->attach (
1638	on_logout => sub {
1639	my ($pl) = @_;
1640
1641	# abort map switching before logout
1642	if ($pl->ob->{_link_pos}) {
1643	cf::sync_job {
1644	$pl->ob->leave_link
1645	};
1646	}
1647	},	2768	}
1648	on_login => sub {
1649	my ($pl) = @_;
1650		2769
1651	# try to abort aborted map switching on player login :)	2770	}
1652	# should happen only on crashes
1653	if ($pl->ob->{_link_pos}) {
1654	$pl->ob->enter_link;
1655	(async {
1656	# we need this sleep as the login has a concurrent enter_exit running
1657	# and this sleep increases chances of the player not ending up in scorn
1658	$pl->ob->reply (undef,
1659	"There was an internal problem at your last logout, "
1660	. "the server will try to bring you to your intended destination in a second.",
1661	cf::NDI_RED);
1662	Coro::Timer::sleep 1;
1663	$pl->ob->leave_link;
1664	})->prio (2);
1665	}
1666	},
1667	);
1668		2771
1669	=item $player_object->goto ($path, $x, $y)	2772	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1670		2773
		2774	Moves the player to the given map-path and coordinates by first freezing
		2775	her, loading and preparing them map, calling the provided $check callback
		2776	that has to return the map if sucecssful, and then unfreezes the player on
		2777	the new (success) or old (failed) map position. In either case, $done will
		2778	be called at the end of this process.
		2779
		2780	Note that $check will be called with a potentially non-loaded map, so if
		2781	it needs a loaded map it has to call C<< ->load >>.
		2782
1671	=cut	2783	=cut
		2784
		2785	our $GOTOGEN;
1672		2786
1673	sub cf::object::player::goto {	2787	sub cf::object::player::goto {
1674	my ($self, $path, $x, $y) = @_;	2788	my ($self, $path, $x, $y, $check, $done) = @_;
1675		2789
1676	$path = new cf::path $path;	2790	if ($self->{_link_recursion} >= $MAX_LINKS) {
1677	$path ne "/" or Carp::cluck ("oy");#d#	2791	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2792	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2793	($path, $x, $y) = @$EMERGENCY_POSITION;
		2794	}
		2795
		2796	# do generation counting so two concurrent goto's will be executed in-order
		2797	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1678		2798
1679	$self->enter_link;	2799	$self->enter_link;
1680		2800
1681	(async {	2801	(async {
1682	my $map = cf::map::find $path->as_string;	2802	$Coro::current->{desc} = "player::goto $path $x $y";
		2803
		2804	# *tag paths override both path and x|y
		2805	if ($path =~ /^\*(.*)$/) {
		2806	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2807	my $ob = $obs[rand @obs];
		2808
		2809	# see if we actually can go there
		2810	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2811	$ob = $obs[rand @obs];
		2812	} else {
		2813	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2814	}
		2815	# else put us there anyways for now #d#
		2816
		2817	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2818	} else {
		2819	($path, $x, $y) = (undef, undef, undef);
		2820	}
		2821	}
		2822
		2823	my $map = eval {
		2824	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2825
		2826	if ($map) {
1683	$map = $map->customise_for ($self) if $map;	2827	$map = $map->customise_for ($self);
1684		2828	$map = $check->($map, $x, $y, $self) if $check && $map;
1685	# warn "entering ", $map->path, " at ($x, $y)\n"	2829	} else {
1686	# if $map;
1687
1688	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2830	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2831	}
1689		2832
		2833	$map
		2834	};
		2835
		2836	if ($@) {
		2837	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2838	LOG llevError | logBacktrace, Carp::longmess $@;
		2839	}
		2840
		2841	if ($gen == $self->{_goto_generation}) {
		2842	delete $self->{_goto_generation};
1690	$self->leave_link ($map, $x, $y);	2843	$self->leave_link ($map, $x, $y);
		2844	}
		2845
		2846	$done->($self) if $done;
1691	})->prio (1);	2847	})->prio (1);
1692	}	2848	}
1693		2849
1694	=item $player_object->enter_exit ($exit_object)	2850	=item $player_object->enter_exit ($exit_object)
1695		2851
…		…
1697		2853
1698	sub parse_random_map_params {	2854	sub parse_random_map_params {
1699	my ($spec) = @_;	2855	my ($spec) = @_;
1700		2856
1701	my $rmp = { # defaults	2857	my $rmp = { # defaults
1702	xsize => 10,	2858	xsize => (cf::rndm 15, 40),
1703	ysize => 10,	2859	ysize => (cf::rndm 15, 40),
		2860	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2861	#layout => string,
1704	};	2862	};
1705		2863
1706	for (split /\n/, $spec) {	2864	for (split /\n/, $spec) {
1707	my ($k, $v) = split /\s+/, $_, 2;	2865	my ($k, $v) = split /\s+/, $_, 2;
1708		2866
…		…
1720	# that depends on the exit object	2878	# that depends on the exit object
1721		2879
1722	my $rmp = parse_random_map_params $exit->msg;	2880	my $rmp = parse_random_map_params $exit->msg;
1723		2881
1724	if ($exit->map) {	2882	if ($exit->map) {
1725	$rmp->{region} = $exit->map->region_name;	2883	$rmp->{region} = $exit->region->name;
1726	$rmp->{origin_map} = $exit->map->path;	2884	$rmp->{origin_map} = $exit->map->path;
1727	$rmp->{origin_x} = $exit->x;	2885	$rmp->{origin_x} = $exit->x;
1728	$rmp->{origin_y} = $exit->y;	2886	$rmp->{origin_y} = $exit->y;
		2887
		2888	$exit->map->touch;
1729	}	2889	}
1730		2890
1731	$rmp->{random_seed} ||= $exit->random_seed;	2891	$rmp->{random_seed} ||= $exit->random_seed;
1732		2892
1733	my $data = cf::to_json $rmp;	2893	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1734	my $md5 = Digest::MD5::md5_hex $data;	2894	my $md5 = Digest::MD5::md5_hex $data;
		2895	my $meta = "$RANDOMDIR/$md5.meta";
1735		2896
1736	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2897	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1737	aio_write $fh, 0, (length $data), $data, 0;	2898	aio_write $fh, 0, (length $data), $data, 0;
		2899	undef $fh;
		2900	aio_rename "$meta~", $meta;
1738		2901
		2902	my $slaying = "?random/$md5";
		2903
		2904	if ($exit->valid) {
1739	$exit->slaying ("?random/$md5");	2905	$exit->slaying ("?random/$md5");
1740	$exit->msg (undef);	2906	$exit->msg (undef);
		2907	}
1741	}	2908	}
1742	}	2909	}
1743		2910
1744	sub cf::object::player::enter_exit {	2911	sub cf::object::player::enter_exit {
1745	my ($self, $exit) = @_;	2912	my ($self, $exit) = @_;
…		…
1747	return unless $self->type == cf::PLAYER;	2914	return unless $self->type == cf::PLAYER;
1748		2915
1749	$self->enter_link;	2916	$self->enter_link;
1750		2917
1751	(async {	2918	(async {
1752	$self->deactivate_recursive; # just to be sure	2919	$Coro::current->{desc} = "enter_exit";
		2920
1753	unless (eval {	2921	unless (eval {
		2922	$self->deactivate_recursive; # just to be sure
		2923
		2924	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2925	my $x = $exit->stats->hp;
		2926	my $y = $exit->stats->sp;
		2927
		2928	# special map handling
		2929	my $slaying = $exit->slaying;
		2930
		2931	# special map handling
		2932	if ($slaying eq "/!") {
		2933	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2934
1754	prepare_random_map $exit	2935	prepare_random_map $exit
		2936	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2937
1755	if $exit->slaying eq "/!";	2938	$map = $exit->slaying;
1756		2939
1757	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2940	} elsif ($slaying eq '!up') {
1758	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2941	$map = $exit->map->tile_path (cf::TILE_UP);
		2942	$x = $exit->x;
		2943	$y = $exit->y;
1759		2944
		2945	} elsif ($slaying eq '!down') {
		2946	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2947	$x = $exit->x;
		2948	$y = $exit->y;
		2949	}
		2950
		2951	$self->goto ($map, $x, $y);
		2952
		2953	# if exit is damned, update players death & WoR home-position
		2954	$self->contr->savebed ($map, $x, $y)
		2955	if $exit->flag (cf::FLAG_DAMNED);
		2956
1760	1;	2957	1
1761	}) {	2958	}) {
1762	$self->message ("Something went wrong deep within the crossfire server. "	2959	$self->message ("Something went wrong deep within the deliantra server. "
1763	. "I'll try to bring you back to the map you were before. "	2960	. "I'll try to bring you back to the map you were before. "
1764	. "Please report this to the dungeon master",	2961	. "Please report this to the dungeon master!",
1765	cf::NDI_UNIQUE | cf::NDI_RED);	2962	cf::NDI_UNIQUE | cf::NDI_RED);
1766		2963
1767	warn "ERROR in enter_exit: $@";	2964	error "ERROR in enter_exit: $@";
1768	$self->leave_link;	2965	$self->leave_link;
1769	}	2966	}
1770	})->prio (1);	2967	})->prio (1);
1771	}	2968	}
1772		2969
…		…
1783		2980
1784	sub cf::client::send_drawinfo {	2981	sub cf::client::send_drawinfo {
1785	my ($self, $text, $flags) = @_;	2982	my ($self, $text, $flags) = @_;
1786		2983
1787	utf8::encode $text;	2984	utf8::encode $text;
1788	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2985	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1789	}	2986	}
1790		2987
		2988	=item $client->send_big_packet ($pkt)
		2989
		2990	Like C<send_packet>, but tries to compress large packets, and fragments
		2991	them as required.
		2992
		2993	=cut
		2994
		2995	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2996
		2997	sub cf::client::send_big_packet {
		2998	my ($self, $pkt) = @_;
		2999
		3000	# try lzf for large packets
		3001	$pkt = "lzf " . Compress::LZF::compress $pkt
		3002	if 1024 <= length $pkt and $self->{can_lzf};
		3003
		3004	# split very large packets
		3005	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3006	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3007	$pkt = "frag";
		3008	}
		3009
		3010	$self->send_packet ($pkt);
		3011	}
		3012
		3013	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3014
		3015	Send a drawinfo or msg packet to the client, formatting the msg for the
		3016	client if neccessary. C<$type> should be a string identifying the type of
		3017	the message, with C<log> being the default. If C<$color> is negative, suppress
		3018	the message unless the client supports the msg packet.
		3019
		3020	=cut
		3021
		3022	# non-persistent channels (usually the info channel)
		3023	our %CHANNEL = (
		3024	"c/motd" => {
		3025	id => "infobox",
		3026	title => "MOTD",
		3027	reply => undef,
		3028	tooltip => "The message of the day",
		3029	},
		3030	"c/identify" => {
		3031	id => "infobox",
		3032	title => "Identify",
		3033	reply => undef,
		3034	tooltip => "Items recently identified",
		3035	},
		3036	"c/examine" => {
		3037	id => "infobox",
		3038	title => "Examine",
		3039	reply => undef,
		3040	tooltip => "Signs and other items you examined",
		3041	},
		3042	"c/shopinfo" => {
		3043	id => "infobox",
		3044	title => "Shop Info",
		3045	reply => undef,
		3046	tooltip => "What your bargaining skill tells you about the shop",
		3047	},
		3048	"c/book" => {
		3049	id => "infobox",
		3050	title => "Book",
		3051	reply => undef,
		3052	tooltip => "The contents of a note or book",
		3053	},
		3054	"c/lookat" => {
		3055	id => "infobox",
		3056	title => "Look",
		3057	reply => undef,
		3058	tooltip => "What you saw there",
		3059	},
		3060	"c/who" => {
		3061	id => "infobox",
		3062	title => "Players",
		3063	reply => undef,
		3064	tooltip => "Shows players who are currently online",
		3065	},
		3066	"c/body" => {
		3067	id => "infobox",
		3068	title => "Body Parts",
		3069	reply => undef,
		3070	tooltip => "Shows which body parts you posess and are available",
		3071	},
		3072	"c/statistics" => {
		3073	id => "infobox",
		3074	title => "Statistics",
		3075	reply => undef,
		3076	tooltip => "Shows your primary statistics",
		3077	},
		3078	"c/skills" => {
		3079	id => "infobox",
		3080	title => "Skills",
		3081	reply => undef,
		3082	tooltip => "Shows your experience per skill and item power",
		3083	},
		3084	"c/shopitems" => {
		3085	id => "infobox",
		3086	title => "Shop Items",
		3087	reply => undef,
		3088	tooltip => "Shows the items currently for sale in this shop",
		3089	},
		3090	"c/resistances" => {
		3091	id => "infobox",
		3092	title => "Resistances",
		3093	reply => undef,
		3094	tooltip => "Shows your resistances",
		3095	},
		3096	"c/pets" => {
		3097	id => "infobox",
		3098	title => "Pets",
		3099	reply => undef,
		3100	tooltip => "Shows information abotu your pets/a specific pet",
		3101	},
		3102	"c/perceiveself" => {
		3103	id => "infobox",
		3104	title => "Perceive Self",
		3105	reply => undef,
		3106	tooltip => "You gained detailed knowledge about yourself",
		3107	},
		3108	"c/uptime" => {
		3109	id => "infobox",
		3110	title => "Uptime",
		3111	reply => undef,
		3112	tooltip => "How long the server has been running since last restart",
		3113	},
		3114	"c/mapinfo" => {
		3115	id => "infobox",
		3116	title => "Map Info",
		3117	reply => undef,
		3118	tooltip => "Information related to the maps",
		3119	},
		3120	"c/party" => {
		3121	id => "party",
		3122	title => "Party",
		3123	reply => "gsay ",
		3124	tooltip => "Messages and chat related to your party",
		3125	},
		3126	"c/death" => {
		3127	id => "death",
		3128	title => "Death",
		3129	reply => undef,
		3130	tooltip => "Reason for and more info about your most recent death",
		3131	},
		3132	"c/say" => $SAY_CHANNEL,
		3133	"c/chat" => $CHAT_CHANNEL,
		3134	);
		3135
		3136	sub cf::client::send_msg {
		3137	my ($self, $channel, $msg, $color, @extra) = @_;
		3138
		3139	$msg = $self->pl->expand_cfpod ($msg)
		3140	unless $color & cf::NDI_VERBATIM;
		3141
		3142	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3143
		3144	# check predefined channels, for the benefit of C
		3145	if ($CHANNEL{$channel}) {
		3146	$channel = $CHANNEL{$channel};
		3147
		3148	$self->ext_msg (channel_info => $channel);
		3149	$channel = $channel->{id};
		3150
		3151	} elsif (ref $channel) {
		3152	# send meta info to client, if not yet sent
		3153	unless (exists $self->{channel}{$channel->{id}}) {
		3154	$self->{channel}{$channel->{id}} = $channel;
		3155	$self->ext_msg (channel_info => $channel);
		3156	}
		3157
		3158	$channel = $channel->{id};
		3159	}
		3160
		3161	return unless @extra || length $msg;
		3162
		3163	# default colour, mask it out
		3164	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3165	if $color & cf::NDI_DEF;
		3166
		3167	my $pkt = "msg "
		3168	. $self->{json_coder}->encode (
		3169	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3170	);
		3171
		3172	$self->send_big_packet ($pkt);
		3173	}
		3174
		3175	=item $client->ext_msg ($type, @msg)
		3176
		3177	Sends an ext event to the client.
		3178
		3179	=cut
		3180
		3181	sub cf::client::ext_msg($$@) {
		3182	my ($self, $type, @msg) = @_;
		3183
		3184	if ($self->extcmd == 2) {
		3185	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3186	} elsif ($self->extcmd == 1) { # TODO: remove
		3187	push @msg, msgtype => "event_$type";
		3188	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3189	}
		3190	}
		3191
		3192	=item $client->ext_reply ($msgid, @msg)
		3193
		3194	Sends an ext reply to the client.
		3195
		3196	=cut
		3197
		3198	sub cf::client::ext_reply($$@) {
		3199	my ($self, $id, @msg) = @_;
		3200
		3201	if ($self->extcmd == 2) {
		3202	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3203	} elsif ($self->extcmd == 1) {
		3204	#TODO: version 1, remove
		3205	unshift @msg, msgtype => "reply", msgid => $id;
		3206	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3207	}
		3208	}
1791		3209
1792	=item $success = $client->query ($flags, "text", \&cb)	3210	=item $success = $client->query ($flags, "text", \&cb)
1793		3211
1794	Queues a query to the client, calling the given callback with	3212	Queues a query to the client, calling the given callback with
1795	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3213	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1796	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3214	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1797		3215
1798	Queries can fail, so check the return code. Or don't, as queries will become	3216	Queries can fail, so check the return code. Or don't, as queries will
1799	reliable at some point in the future.	3217	become reliable at some point in the future.
1800		3218
1801	=cut	3219	=cut
1802		3220
1803	sub cf::client::query {	3221	sub cf::client::query {
1804	my ($self, $flags, $text, $cb) = @_;	3222	my ($self, $flags, $text, $cb) = @_;
…		…
1812	utf8::encode $text;	3230	utf8::encode $text;
1813	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3231	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1814		3232
1815	$self->send_packet ($self->{query_queue}[0][0])	3233	$self->send_packet ($self->{query_queue}[0][0])
1816	if @{ $self->{query_queue} } == 1;	3234	if @{ $self->{query_queue} } == 1;
		3235
		3236	1
1817	}	3237	}
1818		3238
1819	cf::client->attach (	3239	cf::client->attach (
		3240	on_connect => sub {
		3241	my ($ns) = @_;
		3242
		3243	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3244	},
1820	on_reply => sub {	3245	on_reply => sub {
1821	my ($ns, $msg) = @_;	3246	my ($ns, $msg) = @_;
1822		3247
1823	# this weird shuffling is so that direct followup queries	3248	# this weird shuffling is so that direct followup queries
1824	# get handled first	3249	# get handled first
1825	my $queue = delete $ns->{query_queue}	3250	my $queue = delete $ns->{query_queue}
1826	or return; # be conservative, not sure how that can happen, but we saw a crash here	3251	or return; # be conservative, not sure how that can happen, but we saw a crash here
1827		3252
1828	(shift @$queue)->[1]->($msg);	3253	(shift @$queue)->[1]->($msg);
		3254	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1829		3255
1830	push @{ $ns->{query_queue} }, @$queue;	3256	push @{ $ns->{query_queue} }, @$queue;
1831		3257
1832	if (@{ $ns->{query_queue} } == @$queue) {	3258	if (@{ $ns->{query_queue} } == @$queue) {
1833	if (@$queue) {	3259	if (@$queue) {
…		…
1835	} else {	3261	} else {
1836	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3262	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1837	}	3263	}
1838	}	3264	}
1839	},	3265	},
		3266	on_exticmd => sub {
		3267	my ($ns, $buf) = @_;
		3268
		3269	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3270
		3271	if (ref $msg) {
		3272	my ($type, $reply, @payload) =
		3273	"ARRAY" eq ref $msg
		3274	? @$msg
		3275	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3276
		3277	my @reply;
		3278
		3279	if (my $cb = $EXTICMD{$type}) {
		3280	@reply = $cb->($ns, @payload);
		3281	}
		3282
		3283	$ns->ext_reply ($reply, @reply)
		3284	if $reply;
		3285
		3286	} else {
		3287	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3288	}
		3289
		3290	cf::override;
		3291	},
1840	);	3292	);
1841		3293
1842	=item $client->async (\&cb)	3294	=item $client->async (\&cb)
1843		3295
1844	Create a new coroutine, running the specified callback. The coroutine will	3296	Create a new coroutine, running the specified callback. The coroutine will
…		…
1860		3312
1861	$coro	3313	$coro
1862	}	3314	}
1863		3315
1864	cf::client->attach (	3316	cf::client->attach (
1865	on_destroy => sub {	3317	on_client_destroy => sub {
1866	my ($ns) = @_;	3318	my ($ns) = @_;
1867		3319
1868	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3320	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1869	},	3321	},
1870	);	3322	);
…		…
1885	our $safe = new Safe "safe";	3337	our $safe = new Safe "safe";
1886	our $safe_hole = new Safe::Hole;	3338	our $safe_hole = new Safe::Hole;
1887		3339
1888	$SIG{FPE} = 'IGNORE';	3340	$SIG{FPE} = 'IGNORE';
1889		3341
1890	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3342	$safe->permit_only (Opcode::opset qw(
		3343	:base_core :base_mem :base_orig :base_math :base_loop
		3344	grepstart grepwhile mapstart mapwhile
		3345	sort time
		3346	));
1891		3347
1892	# here we export the classes and methods available to script code	3348	# here we export the classes and methods available to script code
1893		3349
1894	=pod	3350	=pod
1895		3351
1896	The following fucntions and emthods are available within a safe environment:	3352	The following functions and methods are available within a safe environment:
1897		3353
1898	cf::object contr pay_amount pay_player map	3354	cf::object
		3355	contr pay_amount pay_player map x y force_find force_add destroy
		3356	insert remove name archname title slaying race decrease split
		3357	value
		3358
1899	cf::object::player player	3359	cf::object::player
1900	cf::player peaceful	3360	player
1901	cf::map trigger	3361
		3362	cf::player
		3363	peaceful
		3364
		3365	cf::map
		3366	trigger
1902		3367
1903	=cut	3368	=cut
1904		3369
1905	for (	3370	for (
1906	["cf::object" => qw(contr pay_amount pay_player map)],	3371	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3372	insert remove inv nrof name archname title slaying race
		3373	decrease split destroy change_exp value msg lore send_msg)],
1907	["cf::object::player" => qw(player)],	3374	["cf::object::player" => qw(player)],
1908	["cf::player" => qw(peaceful)],	3375	["cf::player" => qw(peaceful send_msg)],
1909	["cf::map" => qw(trigger)],	3376	["cf::map" => qw(trigger)],
1910	) {	3377	) {
1911	no strict 'refs';
1912	my ($pkg, @funs) = @$_;	3378	my ($pkg, @funs) = @$_;
1913	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3379	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1914	for @funs;	3380	for @funs;
1915	}	3381	}
1916		3382
…		…
1931		3397
1932	my $qcode = $code;	3398	my $qcode = $code;
1933	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3399	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1934	$qcode =~ s/\n/\\n/g;	3400	$qcode =~ s/\n/\\n/g;
1935		3401
		3402	%vars = (_dummy => 0) unless %vars;
		3403
		3404	my @res;
1936	local $_;	3405	local $_;
1937	local @safe::cf::_safe_eval_args = values %vars;
1938		3406
1939	my $eval =	3407	my $eval =
1940	"do {\n"	3408	"do {\n"
1941	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3409	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1942	. "#line 0 \"{$qcode}\"\n"	3410	. "#line 0 \"{$qcode}\"\n"
1943	. $code	3411	. $code
1944	. "\n}"	3412	. "\n}"
1945	;	3413	;
1946		3414
		3415	if ($CFG{safe_eval}) {
1947	sub_generation_inc;	3416	sub_generation_inc;
		3417	local @safe::cf::_safe_eval_args = values %vars;
1948	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3418	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1949	sub_generation_inc;	3419	sub_generation_inc;
		3420	} else {
		3421	local @cf::_safe_eval_args = values %vars;
		3422	@res = wantarray ? eval eval : scalar eval $eval;
		3423	}
1950		3424
1951	if ($@) {	3425	if ($@) {
1952	warn "$@";	3426	warn "$@",
1953	warn "while executing safe code '$code'\n";	3427	"while executing safe code '$code'\n",
1954	warn "with arguments " . (join " ", %vars) . "\n";	3428	"with arguments " . (join " ", %vars) . "\n";
1955	}	3429	}
1956		3430
1957	wantarray ? @res : $res[0]	3431	wantarray ? @res : $res[0]
1958	}	3432	}
1959		3433
…		…
1973	=cut	3447	=cut
1974		3448
1975	sub register_script_function {	3449	sub register_script_function {
1976	my ($fun, $cb) = @_;	3450	my ($fun, $cb) = @_;
1977		3451
1978	no strict 'refs';	3452	$fun = "safe::$fun" if $CFG{safe_eval};
1979	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3453	*$fun = $safe_hole->wrap ($cb);
1980	}	3454	}
1981		3455
1982	=back	3456	=back
1983		3457
1984	=cut	3458	=cut
1985		3459
1986	#############################################################################	3460	#############################################################################
		3461	# the server's init and main functions
1987		3462
1988	=head2 EXTENSION DATABASE SUPPORT	3463	sub load_facedata($) {
		3464	my ($path) = @_;
1989		3465
1990	Crossfire maintains a very simple database for extension use. It can	3466	# HACK to clear player env face cache, we need some signal framework
1991	currently store anything that can be serialised using Storable, which	3467	# for this (global event?)
1992	excludes objects.	3468	%ext::player_env::MUSIC_FACE_CACHE = ();
1993		3469
1994	The parameter C<$family> should best start with the name of the extension	3470	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1995	using it, it should be unique.
1996		3471
1997	=over 4	3472	trace "loading facedata from $path\n";
1998		3473
1999	=item $hashref = cf::db_get $family	3474	my $facedata = decode_storable load_file $path;
2000		3475
2001	Return a hashref for use by the extension C<$family>, which can be	3476	$facedata->{version} == 2
2002	modified. After modifications, you have to call C<cf::db_dirty> or	3477	or cf::cleanup "$path: version mismatch, cannot proceed.";
2003	C<cf::db_sync>.
2004		3478
2005	=item $value = cf::db_get $family => $key	3479	# patch in the exptable
2006		3480	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2007	Returns a single value from the database	3481	$facedata->{resource}{"res/exp_table"} = {
2008		3482	type => FT_RSRC,
2009	=item cf::db_put $family => $hashref	3483	data => $exp_table,
2010		3484	hash => (Digest::MD5::md5 $exp_table),
2011	Stores the given family hashref into the database. Updates are delayed, if
2012	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2013
2014	=item cf::db_put $family => $key => $value
2015
2016	Stores the given C<$value> in the family hash. Updates are delayed, if you
2017	want the data to be synced to disk immediately, use C<cf::db_sync>.
2018
2019	=item cf::db_dirty
2020
2021	Marks the database as dirty, to be updated at a later time.
2022
2023	=item cf::db_sync
2024
2025	Immediately write the database to disk I<if it is dirty>.
2026
2027	=cut
2028
2029	our $DB;
2030
2031	{
2032	my $path = cf::localdir . "/database.pst";
2033
2034	sub db_load() {
2035	$DB = stat $path ? Storable::retrieve $path : { };
2036	}
2037
2038	my $pid;
2039
2040	sub db_save() {
2041	waitpid $pid, 0 if $pid;
2042	if (0 == ($pid = fork)) {
2043	$DB->{_meta}{version} = 1;
2044	Storable::nstore $DB, "$path~";
2045	rename "$path~", $path;
2046	cf::_exit 0 if defined $pid;
2047	}
2048	}
2049
2050	my $dirty;
2051
2052	sub db_sync() {
2053	db_save if $dirty;
2054	undef $dirty;
2055	}
2056
2057	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2058	db_sync;
2059	});	3485	};
		3486	cf::cede_to_tick;
2060		3487
2061	sub db_dirty() {
2062	$dirty = 1;
2063	$idle->start;
2064	}	3488	{
		3489	my $faces = $facedata->{faceinfo};
2065		3490
2066	sub db_get($;$) {	3491	while (my ($face, $info) = each %$faces) {
2067	@_ >= 2	3492	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2068	? $DB->{$_[0]}{$_[1]}
2069	: ($DB->{$_[0]} ||= { })
2070	}
2071		3493
2072	sub db_put($$;$) {	3494	cf::face::set_visibility $idx, $info->{visibility};
2073	if (@_ >= 3) {	3495	cf::face::set_magicmap $idx, $info->{magicmap};
2074	$DB->{$_[0]}{$_[1]} = $_[2];	3496	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2075	} else {	3497	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2076	$DB->{$_[0]} = $_[1];	3498	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2077	}
2078	db_dirty;
2079	}
2080		3499
2081	cf::global->attach (	3500	cf::cede_to_tick;
2082	prio => 10000,
2083	on_cleanup => sub {
2084	db_sync;
2085	},	3501	}
2086	);
2087	}
2088		3502
2089	#############################################################################	3503	while (my ($face, $info) = each %$faces) {
2090	# the server's main()	3504	next unless $info->{smooth};
2091		3505
2092	sub cfg_load {	3506	my $idx = cf::face::find $face
2093	open my $fh, "<:utf8", cf::confdir . "/config"	3507	or next;
2094	or return;
2095		3508
2096	local $/;	3509	if (my $smooth = cf::face::find $info->{smooth}) {
2097	*CFG = YAML::Syck::Load <$fh>;	3510	cf::face::set_smooth $idx, $smooth;
		3511	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3512	} else {
		3513	error "smooth face '$info->{smooth}' not found for face '$face'";
		3514	}
2098		3515
		3516	cf::cede_to_tick;
		3517	}
		3518	}
		3519
		3520	{
		3521	my $anims = $facedata->{animinfo};
		3522
		3523	while (my ($anim, $info) = each %$anims) {
		3524	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3525	cf::cede_to_tick;
		3526	}
		3527
		3528	cf::anim::invalidate_all; # d'oh
		3529	}
		3530
		3531	{
		3532	my $res = $facedata->{resource};
		3533
		3534	while (my ($name, $info) = each %$res) {
		3535	if (defined $info->{type}) {
		3536	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3537
		3538	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3539	cf::face::set_type $idx, $info->{type};
		3540	} else {
		3541	$RESOURCE{$name} = $info; # unused
		3542	}
		3543
		3544	cf::cede_to_tick;
		3545	}
		3546	}
		3547
		3548	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3549
		3550	1
		3551	}
		3552
		3553	register_exticmd fx_want => sub {
		3554	my ($ns, $want) = @_;
		3555
		3556	while (my ($k, $v) = each %$want) {
		3557	$ns->fx_want ($k, $v);
		3558	}
		3559	};
		3560
		3561	sub load_resource_file($) {
		3562	my $guard = lock_acquire "load_resource_file";
		3563
		3564	my $status = load_resource_file_ $_[0];
		3565	get_slot 0.1, 100;
		3566	cf::arch::commit_load;
		3567
		3568	$status
		3569	}
		3570
		3571	sub reload_regions {
		3572	# HACK to clear player env face cache, we need some signal framework
		3573	# for this (global event?)
		3574	%ext::player_env::MUSIC_FACE_CACHE = ();
		3575
		3576	load_resource_file "$MAPDIR/regions"
		3577	or die "unable to load regions file\n";
		3578
		3579	for (cf::region::list) {
		3580	$_->{match} = qr/$_->{match}/
		3581	if exists $_->{match};
		3582	}
		3583	}
		3584
		3585	sub reload_facedata {
		3586	load_facedata "$DATADIR/facedata"
		3587	or die "unable to load facedata\n";
		3588	}
		3589
		3590	sub reload_archetypes {
		3591	load_resource_file "$DATADIR/archetypes"
		3592	or die "unable to load archetypes\n";
		3593	}
		3594
		3595	sub reload_treasures {
		3596	load_resource_file "$DATADIR/treasures"
		3597	or die "unable to load treasurelists\n";
		3598	}
		3599
		3600	sub reload_sound {
		3601	trace "loading sound config from $DATADIR/sound\n";
		3602
		3603	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3604
		3605	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3606	my $sound = $soundconf->{compat}[$_]
		3607	or next;
		3608
		3609	my $face = cf::face::find "sound/$sound->[1]";
		3610	cf::sound::set $sound->[0] => $face;
		3611	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3612	}
		3613
		3614	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3615	my $face = cf::face::find "sound/$v";
		3616	cf::sound::set $k => $face;
		3617	}
		3618	}
		3619
		3620	sub reload_resources {
		3621	trace "reloading resource files...\n";
		3622
		3623	reload_exp_table;
		3624	reload_materials;
		3625	reload_facedata;
		3626	reload_sound;
		3627	reload_archetypes;
		3628	reload_regions;
		3629	reload_treasures;
		3630
		3631	trace "finished reloading resource files\n";
		3632	}
		3633
		3634	sub reload_config {
		3635	trace "reloading config file...\n";
		3636
		3637	my $config = load_file "$CONFDIR/config";
		3638	utf8::decode $config;
		3639	*CFG = decode_yaml $config;
		3640
2099	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3641	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2100		3642
2101	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3643	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2102	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3644	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2103		3645
2104	if (exists $CFG{mlockall}) {	3646	if (exists $CFG{mlockall}) {
…		…
2108	};	3650	};
2109	warn $@ if $@;	3651	warn $@ if $@;
2110	}	3652	}
2111	}	3653	}
2112		3654
		3655	sub pidfile() {
		3656	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3657	or die "$PIDFILE: $!";
		3658	flock $fh, &Fcntl::LOCK_EX
		3659	or die "$PIDFILE: flock: $!";
		3660	$fh
		3661	}
		3662
		3663	# make sure only one server instance is running at any one time
		3664	sub atomic {
		3665	my $fh = pidfile;
		3666
		3667	my $pid = <$fh>;
		3668	kill 9, $pid if $pid > 0;
		3669
		3670	seek $fh, 0, 0;
		3671	print $fh $$;
		3672	}
		3673
		3674	sub main_loop {
		3675	trace "EV::loop starting\n";
		3676	if (1) {
		3677	EV::loop;
		3678	}
		3679	trace "EV::loop returned\n";
		3680	goto &main_loop unless $REALLY_UNLOOP;
		3681	}
		3682
2113	sub main {	3683	sub main {
		3684	cf::init_globals; # initialise logging
		3685
		3686	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3687	LOG llevInfo, "Copyright (C) 2005-2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3688	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3689	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3690
		3691	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3692
2114	# we must not ever block the main coroutine	3693	# we must not ever block the main coroutine
2115	local $Coro::idle = sub {	3694	local $Coro::idle = sub {
2116	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3695	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2117	async { Event::one_event };	3696	(async {
		3697	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3698	EV::loop EV::LOOP_ONESHOT;
		3699	})->prio (Coro::PRIO_MAX);
2118	};	3700	};
2119		3701
2120	cfg_load;	3702	evthread_start IO::AIO::poll_fileno;
2121	db_load;	3703
		3704	cf::sync_job {
		3705	cf::incloader::init ();
		3706
		3707	cf::init_anim;
		3708	cf::init_attackmess;
		3709	cf::init_dynamic;
		3710
		3711	cf::load_settings;
		3712
		3713	reload_resources;
		3714	reload_config;
		3715	db_init;
		3716
		3717	cf::init_uuid;
		3718	cf::init_signals;
		3719	cf::init_skills;
		3720
		3721	cf::init_beforeplay;
		3722
		3723	atomic;
		3724
2122	load_extensions;	3725	load_extensions;
2123	Event::loop;	3726
		3727	utime time, time, $RUNTIMEFILE;
		3728
		3729	# no (long-running) fork's whatsoever before this point(!)
		3730	use POSIX ();
		3731	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3732
		3733	cf::_post_init 0;
		3734	};
		3735
		3736	cf::object::thawer::errors_are_fatal 0;
		3737	info "parse errors in files are no longer fatal from this point on.\n";
		3738
		3739	my $free_main; $free_main = EV::idle sub {
		3740	undef $free_main;
		3741	undef &main; # free gobs of memory :)
		3742	};
		3743
		3744	goto &main_loop;
2124	}	3745	}
2125		3746
2126	#############################################################################	3747	#############################################################################
2127	# initialisation	3748	# initialisation and cleanup
2128		3749
		3750	# install some emergency cleanup handlers
		3751	BEGIN {
		3752	our %SIGWATCHER = ();
		3753	for my $signal (qw(INT HUP TERM)) {
		3754	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3755	cf::cleanup "SIG$signal";
		3756	};
		3757	}
		3758	}
		3759
		3760	sub write_runtime_sync {
		3761	my $t0 = AE::time;
		3762
		3763	# first touch the runtime file to show we are still running:
		3764	# the fsync below can take a very very long time.
		3765
		3766	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3767
		3768	my $guard = cf::lock_acquire "write_runtime";
		3769
		3770	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3771	or return;
		3772
		3773	my $value = $cf::RUNTIME + 90 + 10;
		3774	# 10 is the runtime save interval, for a monotonic clock
		3775	# 60 allows for the watchdog to kill the server.
		3776
		3777	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3778	and return;
		3779
		3780	# always fsync - this file is important
		3781	aio_fsync $fh
		3782	and return;
		3783
		3784	# touch it again to show we are up-to-date
		3785	aio_utime $fh, undef, undef;
		3786
		3787	close $fh
		3788	or return;
		3789
		3790	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3791	and return;
		3792
		3793	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3794
		3795	1
		3796	}
		3797
		3798	our $uuid_lock;
		3799	our $uuid_skip;
		3800
		3801	sub write_uuid_sync($) {
		3802	$uuid_skip ||= $_[0];
		3803
		3804	return if $uuid_lock;
		3805	local $uuid_lock = 1;
		3806
		3807	my $uuid = "$LOCALDIR/uuid";
		3808
		3809	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3810	or return;
		3811
		3812	my $value = uuid_seq uuid_cur;
		3813
		3814	unless ($value) {
		3815	info "cowardly refusing to write zero uuid value!\n";
		3816	return;
		3817	}
		3818
		3819	my $value = uuid_str $value + $uuid_skip;
		3820	$uuid_skip = 0;
		3821
		3822	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3823	and return;
		3824
		3825	# always fsync - this file is important
		3826	aio_fsync $fh
		3827	and return;
		3828
		3829	close $fh
		3830	or return;
		3831
		3832	aio_rename "$uuid~", $uuid
		3833	and return;
		3834
		3835	trace "uuid file written ($value).\n";
		3836
		3837	1
		3838
		3839	}
		3840
		3841	sub write_uuid($$) {
		3842	my ($skip, $sync) = @_;
		3843
		3844	$sync ? write_uuid_sync $skip
		3845	: async { write_uuid_sync $skip };
		3846	}
		3847
		3848	sub emergency_save() {
		3849	my $freeze_guard = cf::freeze_mainloop;
		3850
		3851	info "emergency_perl_save: enter\n";
		3852
		3853	# this is a trade-off: we want to be very quick here, so
		3854	# save all maps without fsync, and later call a global sync
		3855	# (which in turn might be very very slow)
		3856	local $USE_FSYNC = 0;
		3857
		3858	cf::sync_job {
		3859	cf::write_runtime_sync; # external watchdog should not bark
		3860
		3861	# use a peculiar iteration method to avoid tripping on perl
		3862	# refcount bugs in for. also avoids problems with players
		3863	# and maps saved/destroyed asynchronously.
		3864	info "emergency_perl_save: begin player save\n";
		3865	for my $login (keys %cf::PLAYER) {
		3866	my $pl = $cf::PLAYER{$login} or next;
		3867	$pl->valid or next;
		3868	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3869	$pl->save;
		3870	}
		3871	info "emergency_perl_save: end player save\n";
		3872
		3873	cf::write_runtime_sync; # external watchdog should not bark
		3874
		3875	info "emergency_perl_save: begin map save\n";
		3876	for my $path (keys %cf::MAP) {
		3877	my $map = $cf::MAP{$path} or next;
		3878	$map->valid or next;
		3879	$map->save;
		3880	}
		3881	info "emergency_perl_save: end map save\n";
		3882
		3883	cf::write_runtime_sync; # external watchdog should not bark
		3884
		3885	info "emergency_perl_save: begin database checkpoint\n";
		3886	BDB::db_env_txn_checkpoint $DB_ENV;
		3887	info "emergency_perl_save: end database checkpoint\n";
		3888
		3889	info "emergency_perl_save: begin write uuid\n";
		3890	write_uuid_sync 1;
		3891	info "emergency_perl_save: end write uuid\n";
		3892
		3893	cf::write_runtime_sync; # external watchdog should not bark
		3894
		3895	trace "emergency_perl_save: syncing database to disk";
		3896	BDB::db_env_txn_checkpoint $DB_ENV;
		3897
		3898	info "emergency_perl_save: starting sync\n";
		3899	IO::AIO::aio_sync sub {
		3900	info "emergency_perl_save: finished sync\n";
		3901	};
		3902
		3903	cf::write_runtime_sync; # external watchdog should not bark
		3904
		3905	trace "emergency_perl_save: flushing outstanding aio requests";
		3906	while (IO::AIO::nreqs || BDB::nreqs) {
		3907	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3908	}
		3909
		3910	cf::write_runtime_sync; # external watchdog should not bark
		3911	};
		3912
		3913	info "emergency_perl_save: leave\n";
		3914	}
		3915
		3916	sub post_cleanup {
		3917	my ($make_core) = @_;
		3918
		3919	IO::AIO::flush;
		3920
		3921	error Carp::longmess "post_cleanup backtrace"
		3922	if $make_core;
		3923
		3924	my $fh = pidfile;
		3925	unlink $PIDFILE if <$fh> == $$;
		3926	}
		3927
		3928	# a safer delete_package, copied from Symbol
		3929	sub clear_package($) {
		3930	my $pkg = shift;
		3931
		3932	# expand to full symbol table name if needed
		3933	unless ($pkg =~ /^main::.*::$/) {
		3934	$pkg = "main$pkg" if $pkg =~ /^::/;
		3935	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3936	$pkg .= '::' unless $pkg =~ /::$/;
		3937	}
		3938
		3939	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3940	my $stem_symtab = *{$stem}{HASH};
		3941
		3942	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3943	or return;
		3944
		3945	# clear all symbols
		3946	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3947	for my $name (keys %$leaf_symtab) {
		3948	_gv_clear *{"$pkg$name"};
		3949	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3950	}
		3951	}
		3952
2129	sub reload() {	3953	sub do_reload_perl() {
2130	# can/must only be called in main	3954	# can/must only be called in main
2131	if ($Coro::current != $Coro::main) {	3955	unless (in_main) {
2132	warn "can only reload from main coroutine\n";	3956	error "can only reload from main coroutine";
2133	return;	3957	return;
2134	}	3958	}
2135		3959
2136	warn "reloading...";	3960	return if $RELOAD++;
2137		3961
2138	my $guard = freeze_mainloop;	3962	my $t1 = AE::time;
		3963
		3964	while ($RELOAD) {
		3965	cf::get_slot 0.1, -1, "reload_perl";
		3966	info "perl_reload: reloading...";
		3967
		3968	trace "perl_reload: entering sync_job";
		3969
		3970	cf::sync_job {
2139	cf::emergency_save;	3971	#cf::emergency_save;
2140		3972
2141	eval {	3973	trace "perl_reload: cancelling all extension coros";
2142	# if anything goes wrong in here, we should simply crash as we already saved
2143
2144	# cancel all watchers
2145	for (Event::all_watchers) {
2146	$_->cancel if $_->data & WF_AUTOCANCEL;
2147	}
2148
2149	# cancel all extension coros
2150	$_->cancel for values %EXT_CORO;	3974	$_->cancel for values %EXT_CORO;
2151	%EXT_CORO = ();	3975	%EXT_CORO = ();
2152		3976
2153	# unload all extensions	3977	trace "perl_reload: removing commands";
2154	for (@exts) {	3978	%COMMAND = ();
2155	warn "unloading <$_>";
2156	unload_extension $_;
2157	}
2158		3979
2159	# unload all modules loaded from $LIBDIR	3980	trace "perl_reload: removing ext/exti commands";
2160	while (my ($k, $v) = each %INC) {	3981	%EXTCMD = ();
2161	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3982	%EXTICMD = ();
2162		3983
2163	warn "removing <$k>";	3984	trace "perl_reload: unloading/nuking all extensions";
2164	delete $INC{$k};	3985	for my $pkg (@EXTS) {
		3986	trace "... unloading $pkg";
2165		3987
2166	$k =~ s/\.pm$//;
2167	$k =~ s/\//::/g;
2168
2169	if (my $cb = $k->can ("unload_module")) {	3988	if (my $cb = $pkg->can ("unload")) {
		3989	eval {
2170	$cb->();	3990	$cb->($pkg);
		3991	1
		3992	} or error "$pkg unloaded, but with errors: $@";
		3993	}
		3994
		3995	trace "... clearing $pkg";
		3996	clear_package $pkg;
2171	}	3997	}
2172		3998
2173	Symbol::delete_package $k;	3999	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4000	while (my ($k, $v) = each %INC) {
		4001	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4002
		4003	trace "... unloading $k";
		4004	delete $INC{$k};
		4005
		4006	$k =~ s/\.pm$//;
		4007	$k =~ s/\//::/g;
		4008
		4009	if (my $cb = $k->can ("unload_module")) {
		4010	$cb->();
		4011	}
		4012
		4013	clear_package $k;
2174	}	4014	}
2175		4015
2176	# sync database to disk
2177	cf::db_sync;
2178	IO::AIO::flush;
2179
2180	# get rid of safe::, as good as possible	4016	trace "perl_reload: getting rid of safe::, as good as possible";
2181	Symbol::delete_package "safe::$_"	4017	clear_package "safe::$_"
2182	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4018	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2183		4019
2184	# remove register_script_function callbacks	4020	trace "perl_reload: unloading cf.pm \"a bit\"";
2185	# TODO
2186
2187	# unload cf.pm "a bit"
2188	delete $INC{"cf.pm"};	4021	delete $INC{"cf.pm"};
		4022	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2189		4023
2190	# don't, removes xs symbols, too,	4024	# don't, removes xs symbols, too,
2191	# and global variables created in xs	4025	# and global variables created in xs
2192	#Symbol::delete_package __PACKAGE__;	4026	#clear_package __PACKAGE__;
2193		4027
2194	# reload cf.pm	4028	info "perl_reload: unload completed, starting to reload now";
2195	warn "reloading cf.pm";	4029
		4030	trace "perl_reload: reloading cf.pm";
2196	require cf;	4031	require cf;
2197	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4032	cf::_connect_to_perl_1;
2198		4033
2199	# load config and database again	4034	trace "perl_reload: loading config and database again";
2200	cf::cfg_load;	4035	cf::reload_config;
2201	cf::db_load;
2202		4036
2203	# load extensions	4037	trace "perl_reload: loading extensions";
2204	warn "load extensions";
2205	cf::load_extensions;	4038	cf::load_extensions;
2206		4039
2207	# reattach attachments to objects	4040	if ($REATTACH_ON_RELOAD) {
2208	warn "reattach";	4041	trace "perl_reload: reattaching attachments to objects/players";
2209	_global_reattach;	4042	_global_reattach; # objects, sockets
		4043	trace "perl_reload: reattaching attachments to maps";
2210	reattach $_ for values %MAP;	4044	reattach $_ for values %MAP;
		4045	trace "perl_reload: reattaching attachments to players";
		4046	reattach $_ for values %PLAYER;
		4047	}
		4048
		4049	cf::_post_init 1;
		4050
		4051	trace "perl_reload: leaving sync_job";
		4052
		4053	1
		4054	} or do {
		4055	error $@;
		4056	cf::cleanup "perl_reload: error, exiting.";
		4057	};
		4058
		4059	--$RELOAD;
		4060	}
		4061
		4062	$t1 = AE::time - $t1;
		4063	info "perl_reload: completed in ${t1}s\n";
		4064	};
		4065
		4066	our $RELOAD_WATCHER; # used only during reload
		4067
		4068	sub reload_perl() {
		4069	# doing reload synchronously and two reloads happen back-to-back,
		4070	# coro crashes during coro_state_free->destroy here.
		4071
		4072	$RELOAD_WATCHER ||= cf::async {
		4073	Coro::AIO::aio_wait cache_extensions;
		4074
		4075	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4076	do_reload_perl;
		4077	undef $RELOAD_WATCHER;
		4078	};
2211	};	4079	};
2212
2213	if ($@) {
2214	warn $@;
2215	warn "error while reloading, exiting.";
2216	exit 1;
2217	}
2218
2219	warn "reloaded successfully";
2220	};
2221
2222	#############################################################################
2223
2224	unless ($LINK_MAP) {
2225	$LINK_MAP = cf::map::new;
2226
2227	$LINK_MAP->width (41);
2228	$LINK_MAP->height (41);
2229	$LINK_MAP->alloc;
2230	$LINK_MAP->path ("{link}");
2231	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2232	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2233
2234	# dirty hack because... archetypes are not yet loaded
2235	Event->timer (
2236	after => 10,
2237	cb => sub {
2238	$_[0]->w->cancel;
2239
2240	# provide some exits "home"
2241	my $exit = cf::object::new "exit";
2242
2243	$exit->slaying ($EMERGENCY_POSITION->[0]);
2244	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2245	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2246
2247	$LINK_MAP->insert ($exit->clone, 19, 19);
2248	$LINK_MAP->insert ($exit->clone, 19, 20);
2249	$LINK_MAP->insert ($exit->clone, 19, 21);
2250	$LINK_MAP->insert ($exit->clone, 20, 19);
2251	$LINK_MAP->insert ($exit->clone, 20, 21);
2252	$LINK_MAP->insert ($exit->clone, 21, 19);
2253	$LINK_MAP->insert ($exit->clone, 21, 20);
2254	$LINK_MAP->insert ($exit->clone, 21, 21);
2255
2256	$exit->destroy;
2257	});
2258
2259	$LINK_MAP->{deny_save} = 1;
2260	$LINK_MAP->{deny_reset} = 1;
2261
2262	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2263	}	4080	}
2264
2265	register "<global>", __PACKAGE__;
2266		4081
2267	register_command "reload" => sub {	4082	register_command "reload" => sub {
2268	my ($who, $arg) = @_;	4083	my ($who, $arg) = @_;
2269		4084
2270	if ($who->flag (FLAG_WIZ)) {	4085	if ($who->flag (FLAG_WIZ)) {
2271	$who->message ("start of reload.");
2272	reload;
2273	$who->message ("end of reload.");	4086	$who->message ("reloading server.");
		4087	async {
		4088	$Coro::current->{desc} = "perl_reload";
		4089	reload_perl;
		4090	};
2274	}	4091	}
2275	};	4092	};
2276		4093
2277	unshift @INC, $LIBDIR;	4094	#############################################################################
2278		4095
2279	$TICK_WATCHER = Event->timer (	4096	my $bug_warning = 0;
2280	reentrant => 0,	4097
2281	prio => 0,	4098	our @WAIT_FOR_TICK;
2282	at => $NEXT_TICK || $TICK,	4099	our @WAIT_FOR_TICK_BEGIN;
2283	data => WF_AUTOCANCEL,	4100
2284	cb => sub {	4101	sub wait_for_tick() {
		4102	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4103
		4104	my $signal = new Coro::Signal;
		4105	push @WAIT_FOR_TICK, $signal;
		4106	$signal->wait;
		4107	}
		4108
		4109	sub wait_for_tick_begin() {
		4110	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4111
		4112	my $signal = new Coro::Signal;
		4113	push @WAIT_FOR_TICK_BEGIN, $signal;
		4114	$signal->wait;
		4115	}
		4116
		4117	sub tick {
		4118	if ($Coro::current != $Coro::main) {
		4119	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4120	unless ++$bug_warning > 10;
		4121	return;
		4122	}
		4123
2285	cf::server_tick; # one server iteration	4124	cf::server_tick; # one server iteration
2286	$RUNTIME += $TICK;
2287	$NEXT_TICK += $TICK;
2288		4125
2289	# if we are delayed by four ticks or more, skip them all	4126	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2290	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2291		4127
2292	$TICK_WATCHER->at ($NEXT_TICK);	4128	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2293	$TICK_WATCHER->start;	4129	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2294	},	4130	Coro::async_pool {
2295	);	4131	$Coro::current->{desc} = "runtime saver";
2296
2297	IO::AIO::max_poll_time $TICK * 0.2;
2298
2299	Event->io (
2300	fd => IO::AIO::poll_fileno,
2301	poll => 'r',
2302	prio => 5,
2303	data => WF_AUTOCANCEL,
2304	cb => \&IO::AIO::poll_cb,
2305	);
2306
2307	Event->timer (
2308	data => WF_AUTOCANCEL,
2309	after => 0,
2310	interval => 10,
2311	cb => sub {
2312	(Coro::unblock_sub {
2313	write_runtime	4132	write_runtime_sync
2314	or warn "ERROR: unable to write runtime file: $!";	4133	or error "ERROR: unable to write runtime file: $!";
2315	})->();	4134	};
2316	},	4135	}
2317	);	4136
		4137	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4138	$sig->send;
		4139	}
		4140	while (my $sig = shift @WAIT_FOR_TICK) {
		4141	$sig->send;
		4142	}
		4143
		4144	$LOAD = ($NOW - $TICK_START) / $TICK;
		4145	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4146
		4147	if (0) {
		4148	if ($NEXT_TICK) {
		4149	my $jitter = $TICK_START - $NEXT_TICK;
		4150	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4151	debug "jitter $JITTER\n";#d#
		4152	}
		4153	}
		4154	}
		4155
		4156	{
		4157	# configure BDB
		4158
		4159	BDB::min_parallel 16;
		4160	BDB::max_poll_reqs $TICK * 0.1;
		4161	$AnyEvent::BDB::WATCHER->priority (1);
		4162
		4163	unless ($DB_ENV) {
		4164	$DB_ENV = BDB::db_env_create;
		4165	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4166	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4167	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4168	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4169	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4170
		4171	cf::sync_job {
		4172	eval {
		4173	BDB::db_env_open
		4174	$DB_ENV,
		4175	$BDBDIR,
		4176	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4177	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4178	0666;
		4179
		4180	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4181	};
		4182
		4183	cf::cleanup "db_env_open(db): $@" if $@;
		4184	};
		4185	}
		4186
		4187	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4188	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4189	};
		4190	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4191	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4192	};
		4193	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4194	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4195	};
		4196	}
		4197
		4198	{
		4199	# configure IO::AIO
		4200
		4201	IO::AIO::min_parallel 8;
		4202	IO::AIO::max_poll_time $TICK * 0.1;
		4203	undef $AnyEvent::AIO::WATCHER;
		4204	}
		4205
		4206	our $_log_backtrace;
		4207	our $_log_backtrace_last;
		4208
		4209	sub _log_backtrace {
		4210	my ($msg, @addr) = @_;
		4211
		4212	$msg =~ s/\n$//;
		4213
		4214	if ($_log_backtrace_last eq $msg) {
		4215	LOG llevInfo, "[ABT] $msg\n";
		4216	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4217	# limit the # of concurrent backtraces
		4218	} elsif ($_log_backtrace < 2) {
		4219	$_log_backtrace_last = $msg;
		4220	++$_log_backtrace;
		4221	my $perl_bt = Carp::longmess $msg;
		4222	async {
		4223	$Coro::current->{desc} = "abt $msg";
		4224
		4225	my @bt = fork_call {
		4226	@addr = map { sprintf "%x", $_ } @addr;
		4227	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4228	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4229	or die "addr2line: $!";
		4230
		4231	my @funcs;
		4232	my @res = <$fh>;
		4233	chomp for @res;
		4234	while (@res) {
		4235	my ($func, $line) = splice @res, 0, 2, ();
		4236	push @funcs, "[$func] $line";
		4237	}
		4238
		4239	@funcs
		4240	};
		4241
		4242	LOG llevInfo, "[ABT] $perl_bt\n";
		4243	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4244	LOG llevInfo, "[ABT] $_\n" for @bt;
		4245	--$_log_backtrace;
		4246	};
		4247	} else {
		4248	LOG llevInfo, "[ABT] $msg\n";
		4249	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4250	}
		4251	}
		4252
		4253	# load additional modules
		4254	require "cf/$_.pm" for @EXTRA_MODULES;
		4255	cf::_connect_to_perl_2;
2318		4256
2319	END { cf::emergency_save }	4257	END { cf::emergency_save }
2320		4258
2321	1	4259	1
2322		4260

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