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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.120 by root, Tue Jan 2 11:08:36 2007 UTC vs.
Revision 1.538 by root, Tue May 4 21:45:43 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3;	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
20	use Digest::MD5;	55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
21	use Fcntl;	58	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
24	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
25		64
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
27		66
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		71
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
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	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE; # unused
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	121	our $NEXT_TICK;
45	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
46		130
47	our %CFG;	131	our %CFG;
48		132
49	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
51		136
52	our %MAP; # all maps	137	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	138	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	139	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	140
56	our %EXT_CORO;	141	# used to convert map paths into valid unix filenames by replacing / by ∕
		142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
57		153
58	binmode STDOUT;	154	binmode STDOUT;
59	binmode STDERR;	155	binmode STDERR;
60		156
61	# read virtual server time, if available	157	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
66	}	162	}
67		163
68	mkdir cf::localdir;	164	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		165
74	# a special map that is always available	166	mkdir $_
75	our $LINK_MAP;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		168
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	169	our $EMERGENCY_POSITION;
		170
		171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
78		187
79	#############################################################################	188	#############################################################################
80		189
81	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
82		191
…		…
89	=item $cf::RUNTIME	198	=item $cf::RUNTIME
90		199
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	201	every server tick.
93		202
94	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		206
96	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
98		211
99	=item $cf::NOW	212	=item $cf::NOW
100		213
101	The time of the last (current) server tick.	214	The time of the last (current) server tick.
102		215
103	=item $cf::TICK	216	=item $cf::TICK
104		217
105	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
106		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
107	=item %cf::CFG	230	=item %cf::CFG
108		231
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	233	from wherever your confdir points to.
111		234
		235	=item cf::wait_for_tick, cf::wait_for_tick_begin
		236
		237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		238	returns directly I<after> the tick processing (and consequently, can only wake one process
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
		252
112	=back	253	=back
113		254
114	=cut	255	=cut
115		256
116	BEGIN {	257	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	258	sub warn (@) { LOG llevWarn , join "", @_ }
		259	sub info (@) { LOG llevInfo , join "", @_ }
		260	sub debug(@) { LOG llevDebug, join "", @_ }
		261	sub trace(@) { LOG llevTrace, join "", @_ }
		262
		263	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	264	my $msg = join "", @_;
119	utf8::encode $msg;
120		265
121	$msg .= "\n"	266	$msg .= "\n"
122	unless $msg =~ /\n$/;	267	unless $msg =~ /\n$/;
123		268
124	LOG llevError, "cfperl: $msg";	269	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	270
126	}	271	LOG llevWarn, $msg;
		272	};
		273
		274	$Coro::State::DIEHOOK = sub {
		275	return unless $^S eq 0; # "eq", not "=="
		276
		277	error Carp::longmess $_[0];
		278
		279	if (in_main) {#d#
		280	error "DIEHOOK called in main context, Coro bug?\n";#d#
		281	return;#d#
		282	}#d#
		283
		284	# kill coroutine otherwise
		285	Coro::terminate
		286	};
127		287
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	288	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	289	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	290	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	291	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	292	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		293	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	294	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		295
135	# we bless all objects into (empty) derived classes to force a method lookup	296	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	297	# within the Safe compartment.
137	for my $pkg (qw(	298	for my $pkg (qw(
138	cf::global cf::attachable	299	cf::global cf::attachable
139	cf::object cf::object::player	300	cf::object cf::object::player
140	cf::client cf::player	301	cf::client cf::player
141	cf::arch cf::living	302	cf::arch cf::living
		303	cf::map cf::mapspace
142	cf::map cf::party cf::region	304	cf::party cf::region
143	)) {	305	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	306	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	307	}
147		308
148	$Event::DIED = sub {	309	$EV::DIED = sub {
149	warn "error in event callback: @_";	310	Carp::cluck "error in event callback: @_";
150	};	311	};
151		312
152	my %ext_pkg;	313	#############################################################################
153	my @exts;
154	my @hook;
155		314
156	=head2 UTILITY FUNCTIONS	315	=head2 UTILITY FUNCTIONS
157		316
158	=over 4	317	=over 4
159		318
160	=cut	319	=item dumpval $ref
161		320
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	321	=cut
163		322
		323	sub dumpval {
		324	eval {
		325	local $SIG{__DIE__};
		326	my $d;
		327	if (1) {
		328	$d = new Data::Dumper([$_[0]], ["*var"]);
		329	$d->Terse(1);
		330	$d->Indent(2);
		331	$d->Quotekeys(0);
		332	$d->Useqq(1);
		333	#$d->Bless(...);
		334	$d->Seen($_[1]) if @_ > 1;
		335	$d = $d->Dump();
		336	}
		337	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		338	$d
		339	} || "[unable to dump $_[0]: '$@']";
		340	}
		341
164	=item $ref = cf::from_json $json	342	=item $ref = cf::decode_json $json
165		343
166	Converts a JSON string into the corresponding perl data structure.	344	Converts a JSON string into the corresponding perl data structure.
167		345
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	346	=item $json = cf::encode_json $ref
176		347
177	Converts a perl data structure into its JSON representation.	348	Converts a perl data structure into its JSON representation.
178		349
179	=cut	350	=cut
180		351
181	sub to_json($) {	352	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		353
186	=item my $guard = cf::guard { BLOCK }	354	sub encode_json($) { $json_coder->encode ($_[0]) }
		355	sub decode_json($) { $json_coder->decode ($_[0]) }
187		356
188	Run the given callback when the guard object gets destroyed (useful for	357	=item cf::post_init { BLOCK }
189	coroutine cancellations).
190		358
191	You can call C<< ->cancel >> on the guard object to stop the block from	359	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
192	being executed.	360	but I<before> the server starts ticking again.
193		361
194	=cut	362	The cdoeblock will have a single boolean argument to indicate whether this
		363	is a reload or not.
195		364
196	sub guard(&) {	365	=cut
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199		366
200	sub cf::guard::cancel {	367	sub post_init(&) {
201	${$_[0]} = sub { };	368	push @POST_INIT, shift;
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}	369	}
207		370
208	=item cf::lock_wait $string	371	=item cf::lock_wait $string
209		372
210	Wait until the given lock is available. See cf::lock_acquire.	373	Wait until the given lock is available. See cf::lock_acquire.
211		374
212	=item my $lock = cf::lock_acquire $string	375	=item my $lock = cf::lock_acquire $string
213		376
214	Wait until the given lock is available and then acquires it and returns	377	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	378	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	379	for example when the coroutine gets canceled), the lock is automatically
217	returned.	380	returned.
218		381
		382	Locks are *not* recursive, locking from the same coro twice results in a
		383	deadlocked coro.
		384
219	Lock names should begin with a unique identifier (for example, find_map	385	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	386	uses map_find and cf::map::load uses map_load).
221		387
222	=cut	388	=item $locked = cf::lock_active $string
223		389
224	our %LOCK;	390	Return true if the lock is currently active, i.e. somebody has locked it.
		391
		392	=cut
		393
		394	our $LOCKS = new Coro::SemaphoreSet;
225		395
226	sub lock_wait($) {	396	sub lock_wait($) {
227	my ($key) = @_;	397	$LOCKS->wait ($_[0]);
228
229	# wait for lock, if any
230	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;
233	}
234	}	398	}
235		399
236	sub lock_acquire($) {	400	sub lock_acquire($) {
237	my ($key) = @_;	401	$LOCKS->guard ($_[0])
238
239	# wait, to be sure we are not locked
240	lock_wait $key;
241
242	$LOCK{$key} = [];
243
244	cf::guard {
245	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };
247	}
248	}	402	}
		403
		404	sub lock_active($) {
		405	$LOCKS->count ($_[0]) < 1
		406	}
		407
		408	sub freeze_mainloop {
		409	tick_inhibit_inc;
		410
		411	&Guard::guard (\&tick_inhibit_dec);
		412	}
		413
		414	=item cf::periodic $interval, $cb
		415
		416	Like EV::periodic, but randomly selects a starting point so that the actions
		417	get spread over time.
		418
		419	=cut
		420
		421	sub periodic($$) {
		422	my ($interval, $cb) = @_;
		423
		424	my $start = rand List::Util::min 180, $interval;
		425
		426	EV::periodic $start, $interval, 0, $cb
		427	}
		428
		429	=item cf::get_slot $time[, $priority[, $name]]
		430
		431	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		432	This call blocks and returns only when you have at least C<$time> seconds
		433	of cpu time till the next tick. The slot is only valid till the next cede.
		434
		435	The optional C<$name> can be used to identify the job to run. It might be
		436	used for statistical purposes and should identify the same time-class.
		437
		438	Useful for short background jobs.
		439
		440	=cut
		441
		442	our @SLOT_QUEUE;
		443	our $SLOT_QUEUE;
		444	our $SLOT_DECAY = 0.9;
		445
		446	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		447	$SLOT_QUEUE = Coro::async {
		448	$Coro::current->desc ("timeslot manager");
		449
		450	my $signal = new Coro::Signal;
		451	my $busy;
		452
		453	while () {
		454	next_job:
		455
		456	my $avail = cf::till_tick;
		457
		458	for (0 .. $#SLOT_QUEUE) {
		459	if ($SLOT_QUEUE[$_][0] <= $avail) {
		460	$busy = 0;
		461	my $job = splice @SLOT_QUEUE, $_, 1, ();
		462	$job->[2]->send;
		463	Coro::cede;
		464	goto next_job;
		465	} else {
		466	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		467	}
		468	}
		469
		470	if (@SLOT_QUEUE) {
		471	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		472	push @cf::WAIT_FOR_TICK, $signal;
		473	$signal->wait;
		474	} else {
		475	$busy = 0;
		476	Coro::schedule;
		477	}
		478	}
		479	};
		480
		481	sub get_slot($;$$) {
		482	return if tick_inhibit || $Coro::current == $Coro::main;
		483
		484	my ($time, $pri, $name) = @_;
		485
		486	$time = clamp $time, 0.01, $TICK * .6;
		487
		488	my $sig = new Coro::Signal;
		489
		490	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		491	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		492	$SLOT_QUEUE->ready;
		493	$sig->wait;
		494	}
		495
		496	=item cf::async { BLOCK }
		497
		498	Currently the same as Coro::async_pool, meaning you cannot use
		499	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		500	thing you are allowed to do is call C<prio> on it.
		501
		502	=cut
		503
		504	BEGIN { *async = \&Coro::async_pool }
249		505
250	=item cf::sync_job { BLOCK }	506	=item cf::sync_job { BLOCK }
251		507
252	The design of crossfire+ requires that the main coro ($Coro::main) is	508	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	509	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	510	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		511	acceptable.
255		512
256	If it must be done, put the blocking parts into C<sync_job>. This will run	513	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	514	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	515	server will be frozen during this time, so the block should either finish
259	fast or be very important.	516	fast or be very important.
…		…
261	=cut	518	=cut
262		519
263	sub sync_job(&) {	520	sub sync_job(&) {
264	my ($job) = @_;	521	my ($job) = @_;
265		522
266	if ($Coro::current == $Coro::main) {	523	if (in_main) {
		524	my $time = AE::time;
		525
267	# this is the main coro, too bad, we have to block	526	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	527	# till the operation succeeds, freezing the server :/
269		528
270	# TODO: use suspend/resume instead	529	#LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	530
272	local $FREEZE = 1;	531	my $freeze_guard = freeze_mainloop;
273		532
274	my $busy = 1;	533	my $busy = 1;
275	my @res;	534	my @res;
276		535
277	(Coro::async {	536	(async {
		537	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	538	@res = eval { $job->() };
279	warn $@ if $@;	539	error $@ if $@;
280	undef $busy;	540	undef $busy;
281	})->prio (Coro::PRIO_MAX);	541	})->prio (Coro::PRIO_MAX);
282		542
283	while ($busy) {	543	while ($busy) {
		544	if (Coro::nready) {
284	Coro::cede_notself;	545	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	546	} else {
		547	EV::loop EV::LOOP_ONESHOT;
286	}	548	}
		549	}
		550
		551	my $time = AE::time - $time;
		552
		553	$TICK_START += $time; # do not account sync jobs to server load
287		554
288	wantarray ? @res : $res[0]	555	wantarray ? @res : $res[0]
289	} else {	556	} else {
290	# we are in another coroutine, how wonderful, everything just works	557	# we are in another coroutine, how wonderful, everything just works
291		558
292	$job->()	559	$job->()
293	}	560	}
294	}	561	}
295		562
296	=item $coro = cf::coro { BLOCK }	563	=item $coro = cf::async_ext { BLOCK }
297		564
298	Creates and returns a new coro. This coro is automcatially being canceled	565	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	566	extension calling this is being unloaded.
300		567
301	=cut	568	=cut
302		569
303	sub coro(&) {	570	sub async_ext(&) {
304	my $cb = shift;	571	my $cb = shift;
305		572
306	my $coro; $coro = async {	573	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		574
313	$coro->on_destroy (sub {	575	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	576	delete $EXT_CORO{$coro+0};
315	});	577	});
316	$EXT_CORO{$coro+0} = $coro;	578	$EXT_CORO{$coro+0} = $coro;
317		579
318	$coro	580	$coro
319	}	581	}
320		582
321	sub write_runtime {	583	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		584
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	585	Executes the given code block with the given arguments in a seperate
325	or return;	586	process, returning the results. Everything must be serialisable with
		587	Coro::Storable. May, of course, block. Note that the executed sub may
		588	never block itself or use any form of event handling.
326		589
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	590	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		591
331	aio_fsync $fh	592	sub fork_call(&@) {
332	and return;	593	my ($cb, @args) = @_;
333		594
334	close $fh	595	# we seemingly have to make a local copy of the whole thing,
335	or return;	596	# otherwise perl prematurely frees the stuff :/
		597	# TODO: investigate and fix (likely this will be rather laborious)
336		598
337	aio_rename "$runtime~", $runtime	599	my @res = Coro::Util::fork_eval {
338	and return;	600	reset_signals;
		601	&$cb
		602	}, @args;
339		603
		604	wantarray ? @res : $res[-1]
		605	}
		606
		607	sub objinfo {
340	1	608	(
		609	"counter value" => cf::object::object_count,
		610	"objects created" => cf::object::create_count,
		611	"objects destroyed" => cf::object::destroy_count,
		612	"freelist size" => cf::object::free_count,
		613	"allocated objects" => cf::object::objects_size,
		614	"active objects" => cf::object::actives_size,
		615	)
		616	}
		617
		618	=item $coin = coin_from_name $name
		619
		620	=cut
		621
		622	our %coin_alias = (
		623	"silver" => "silvercoin",
		624	"silvercoin" => "silvercoin",
		625	"silvercoins" => "silvercoin",
		626	"gold" => "goldcoin",
		627	"goldcoin" => "goldcoin",
		628	"goldcoins" => "goldcoin",
		629	"platinum" => "platinacoin",
		630	"platinumcoin" => "platinacoin",
		631	"platinumcoins" => "platinacoin",
		632	"platina" => "platinacoin",
		633	"platinacoin" => "platinacoin",
		634	"platinacoins" => "platinacoin",
		635	"royalty" => "royalty",
		636	"royalties" => "royalty",
		637	);
		638
		639	sub coin_from_name($) {
		640	$coin_alias{$_[0]}
		641	? cf::arch::find $coin_alias{$_[0]}
		642	: undef
		643	}
		644
		645	=item $value = cf::db_get $family => $key
		646
		647	Returns a single value from the environment database.
		648
		649	=item cf::db_put $family => $key => $value
		650
		651	Stores the given C<$value> in the family. It can currently store binary
		652	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		653
		654	=item $db = cf::db_table "name"
		655
		656	Create and/or open a new database table. The string must not be "db" and must be unique
		657	within each server.
		658
		659	=cut
		660
		661	sub db_table($) {
		662	cf::error "db_get called from main context"
		663	if $Coro::current == $Coro::main;
		664
		665	my ($name) = @_;
		666	my $db = BDB::db_create $DB_ENV;
		667
		668	eval {
		669	$db->set_flags (BDB::CHKSUM);
		670
		671	utf8::encode $name;
		672	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		673	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		674	cf::cleanup "db_open(db): $!" if $!;
		675	};
		676	cf::cleanup "db_open(db): $@" if $@;
		677
		678	$db
		679	}
		680
		681	our $DB;
		682
		683	sub db_init {
		684	$DB ||= db_table "db";
		685	}
		686
		687	sub db_get($$) {
		688	my $key = "$_[0]/$_[1]";
		689
		690	cf::error "db_get called from main context"
		691	if $Coro::current == $Coro::main;
		692
		693	BDB::db_get $DB, undef, $key, my $data;
		694
		695	$! ? ()
		696	: $data
		697	}
		698
		699	sub db_put($$$) {
		700	BDB::dbreq_pri 4;
		701	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		702	}
		703
		704	=item cf::cache $id => [$paths...], $processversion => $process
		705
		706	Generic caching function that returns the value of the resource $id,
		707	caching and regenerating as required.
		708
		709	This function can block.
		710
		711	=cut
		712
		713	sub cache {
		714	my ($id, $src, $processversion, $process) = @_;
		715
		716	my $meta =
		717	join "\x00",
		718	$processversion,
		719	map {
		720	aio_stat $_
		721	and Carp::croak "$_: $!";
		722
		723	($_, (stat _)[7,9])
		724	} @$src;
		725
		726	my $dbmeta = db_get cache => "$id/meta";
		727	if ($dbmeta ne $meta) {
		728	# changed, we may need to process
		729
		730	my @data;
		731	my $md5;
		732
		733	for (0 .. $#$src) {
		734	0 <= aio_load $src->[$_], $data[$_]
		735	or Carp::croak "$src->[$_]: $!";
		736	}
		737
		738	# if processing is expensive, check
		739	# checksum first
		740	if (1) {
		741	$md5 =
		742	join "\x00",
		743	$processversion,
		744	map {
		745	cf::cede_to_tick;
		746	($src->[$_], Digest::MD5::md5_hex $data[$_])
		747	} 0.. $#$src;
		748
		749
		750	my $dbmd5 = db_get cache => "$id/md5";
		751	if ($dbmd5 eq $md5) {
		752	db_put cache => "$id/meta", $meta;
		753
		754	return db_get cache => "$id/data";
		755	}
		756	}
		757
		758	my $t1 = Time::HiRes::time;
		759	my $data = $process->(\@data);
		760	my $t2 = Time::HiRes::time;
		761
		762	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		763
		764	db_put cache => "$id/data", $data;
		765	db_put cache => "$id/md5" , $md5;
		766	db_put cache => "$id/meta", $meta;
		767
		768	return $data;
		769	}
		770
		771	db_get cache => "$id/data"
		772	}
		773
		774	=item cf::datalog type => key => value, ...
		775
		776	Log a datalog packet of the given type with the given key-value pairs.
		777
		778	=cut
		779
		780	sub datalog($@) {
		781	my ($type, %kv) = @_;
		782	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	783	}
342		784
343	=back	785	=back
344		786
345	=cut	787	=cut
346		788
347	#############################################################################	789	#############################################################################
348		790
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466
467	#############################################################################
468
469	=head2 ATTACHABLE OBJECTS	791	=head2 ATTACHABLE OBJECTS
470		792
471	Many objects in crossfire are so-called attachable objects. That means you can	793	Many objects in deliantra are so-called attachable objects. That means you can
472	attach callbacks/event handlers (a collection of which is called an "attachment")	794	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	795	to it. All such attachable objects support the following methods.
474		796
475	In the following description, CLASS can be any of C<global>, C<object>	797	In the following description, CLASS can be any of C<global>, C<object>
476	C<player>, C<client> or C<map> (i.e. the attachable objects in	798	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	799	Deliantra).
478		800
479	=over 4	801	=over 4
480		802
481	=item $attachable->attach ($attachment, key => $value...)	803	=item $attachable->attach ($attachment, key => $value...)
482		804
…		…
526	=item cf::CLASS::attachment $name, ...	848	=item cf::CLASS::attachment $name, ...
527		849
528	Register an attachment by C<$name> through which attachable objects of the	850	Register an attachment by C<$name> through which attachable objects of the
529	given CLASS can refer to this attachment.	851	given CLASS can refer to this attachment.
530		852
531	Some classes such as crossfire maps and objects can specify attachments	853	Some classes such as deliantra maps and objects can specify attachments
532	that are attached at load/instantiate time, thus the need for a name.	854	that are attached at load/instantiate time, thus the need for a name.
533		855
534	These calls expect any number of the following handler/hook descriptions:	856	These calls expect any number of the following handler/hook descriptions:
535		857
536	=over 4	858	=over 4
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	918	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	919	our @CB_MAP = ();
598		920
599	my %attachment;	921	my %attachment;
600		922
		923	sub cf::attachable::thawer_merge {
		924	# simply override everything except _meta
		925	local $_[0]{_meta};
		926	%{$_[0]} = %{$_[1]};
		927	}
		928
601	sub _attach_cb($$$$) {	929	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	930	my ($registry, $event, $prio, $cb) = @_;
603		931
604	use sort 'stable';	932	use sort 'stable';
605		933
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	967	$registry = $CB_TYPE[$object_type] ||= [];
640		968
641	} elsif ($type eq "subtype") {	969	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	970	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	971	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	972	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		973
646	} elsif ($type eq "package") {	974	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	975	my $pkg = shift @arg;
648		976
649	while (my ($name, $id) = each %cb_id) {	977	while (my ($name, $id) = each %cb_id) {
…		…
654		982
655	} elsif (exists $cb_id{$type}) {	983	} elsif (exists $cb_id{$type}) {
656	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	984	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
657		985
658	} elsif (ref $type) {	986	} elsif (ref $type) {
659	warn "attaching objects not supported, ignoring.\n";	987	error "attaching objects not supported, ignoring.\n";
660		988
661	} else {	989	} else {
662	shift @arg;	990	shift @arg;
663	warn "attach argument '$type' not supported, ignoring.\n";	991	error "attach argument '$type' not supported, ignoring.\n";
664	}	992	}
665	}	993	}
666	}	994	}
667		995
668	sub _object_attach {	996	sub _object_attach {
…		…
678	_attach $registry, $klass, @attach;	1006	_attach $registry, $klass, @attach;
679	}	1007	}
680		1008
681	$obj->{$name} = \%arg;	1009	$obj->{$name} = \%arg;
682	} else {	1010	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	1011	info "object uses attachment '$name' which is not available, postponing.\n";
684	}	1012	}
685		1013
686	$obj->{_attachment}{$name} = undef;	1014	$obj->{_attachment}{$name} = undef;
687	}	1015	}
688		1016
…		…
690	if (ref $_[0]) {	1018	if (ref $_[0]) {
691	_object_attach @_;	1019	_object_attach @_;
692	} else {	1020	} else {
693	_attach shift->_attach_registry, @_;	1021	_attach shift->_attach_registry, @_;
694	}	1022	}
		1023	_recalc_want;
695	};	1024	};
696		1025
697	# all those should be optimised	1026	# all those should be optimised
698	sub cf::attachable::detach {	1027	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	1028	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	1031	delete $obj->{_attachment}{$name};
703	reattach ($obj);	1032	reattach ($obj);
704	} else {	1033	} else {
705	Carp::croak "cannot, currently, detach class attachments";	1034	Carp::croak "cannot, currently, detach class attachments";
706	}	1035	}
		1036	_recalc_want;
707	};	1037	};
708		1038
709	sub cf::attachable::attached {	1039	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	1040	my ($obj, $name) = @_;
711		1041
…		…
726	";	1056	";
727	die if $@;	1057	die if $@;
728	}	1058	}
729		1059
730	our $override;	1060	our $override;
731	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1061	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732		1062
733	sub override {	1063	sub override {
734	$override = 1;	1064	$override = 1;
735	@invoke_results = ();	1065	@INVOKE_RESULTS = (@_);
736	}	1066	}
737		1067
738	sub do_invoke {	1068	sub do_invoke {
739	my $event = shift;	1069	my $event = shift;
740	my $callbacks = shift;	1070	my $callbacks = shift;
741		1071
742	@invoke_results = ();	1072	@INVOKE_RESULTS = ();
743		1073
744	local $override;	1074	local $override;
745		1075
746	for (@$callbacks) {	1076	for (@$callbacks) {
747	eval { &{$_->[1]} };	1077	eval { &{$_->[1]} };
748		1078
749	if ($@) {	1079	if ($@) {
750	warn "$@";
751	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1080	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
752	override;	1081	override;
753	}	1082	}
754		1083
755	return 1 if $override;	1084	return 1 if $override;
756	}	1085	}
757		1086
758	0	1087	0
759	}	1088	}
760		1089
761	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1090	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
762		1091
763	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1092	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
764		1093
765	Generate an object-specific event with the given arguments.	1094	Generate an object-specific event with the given arguments.
766		1095
767	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1096	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
768	removed in future versions), and there is no public API to access override	1097	removed in future versions), and there is no public API to access override
769	results (if you must, access C<@cf::invoke_results> directly).	1098	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		1099
771	=back	1100	=back
772		1101
773	=cut	1102	=cut
774		1103
775	#############################################################################	1104	#############################################################################
776	# object support	1105	# object support
		1106
		1107	sub _object_equal($$);
		1108	sub _object_equal($$) {
		1109	my ($a, $b) = @_;
		1110
		1111	return 0 unless (ref $a) eq (ref $b);
		1112
		1113	if ("HASH" eq ref $a) {
		1114	my @ka = keys %$a;
		1115	my @kb = keys %$b;
		1116
		1117	return 0 if @ka != @kb;
		1118
		1119	for (0 .. $#ka) {
		1120	return 0 unless $ka[$_] eq $kb[$_];
		1121	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1122	}
		1123
		1124	} elsif ("ARRAY" eq ref $a) {
		1125
		1126	return 0 if @$a != @$b;
		1127
		1128	for (0 .. $#$a) {
		1129	return 0 unless _object_equal $a->[$_], $b->[$_];
		1130	}
		1131
		1132	} elsif ($a ne $b) {
		1133	return 0;
		1134	}
		1135
		1136	1
		1137	}
		1138
		1139	our $SLOW_MERGES;#d#
		1140	sub _can_merge {
		1141	my ($ob1, $ob2) = @_;
		1142
		1143	++$SLOW_MERGES;#d#
		1144
		1145	# we do the slow way here
		1146	return _object_equal $ob1, $ob2
		1147	}
777		1148
778	sub reattach {	1149	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	1150	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	1151	my ($obj) = @_;
		1152
		1153	# no longer needed after getting rid of delete_package?
		1154	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		1155
782	my $registry = $obj->registry;	1156	my $registry = $obj->registry;
783		1157
784	@$registry = ();	1158	@$registry = ();
785		1159
…		…
790	for (@$attach) {	1164	for (@$attach) {
791	my ($klass, @attach) = @$_;	1165	my ($klass, @attach) = @$_;
792	_attach $registry, $klass, @attach;	1166	_attach $registry, $klass, @attach;
793	}	1167	}
794	} else {	1168	} else {
795	warn "object uses attachment '$name' that is not available, postponing.\n";	1169	info "object uses attachment '$name' that is not available, postponing.\n";
796	}	1170	}
797	}	1171	}
798	}	1172	}
799		1173
800	cf::attachable->attach (	1174	cf::attachable->attach (
801	prio => -1000000,	1175	prio => -1000000,
802	on_instantiate => sub {	1176	on_instantiate => sub {
803	my ($obj, $data) = @_;	1177	my ($obj, $data) = @_;
804		1178
805	$data = from_json $data;	1179	$data = decode_json $data;
806		1180
807	for (@$data) {	1181	for (@$data) {
808	my ($name, $args) = @$_;	1182	my ($name, $args) = @$_;
809		1183
810	$obj->attach ($name, %{$args || {} });	1184	$obj->attach ($name, %{$args || {} });
…		…
826	sub object_freezer_save {	1200	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1201	my ($filename, $rdata, $objs) = @_;
828		1202
829	sync_job {	1203	sync_job {
830	if (length $$rdata) {	1204	if (length $$rdata) {
		1205	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1206	trace sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1207	$decname, length $$rdata, scalar @$objs
		1208	if $VERBOSE_IO;
833		1209
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1210	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1211	aio_chmod $fh, SAVE_MODE;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1212	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1213	if ($cf::USE_FSYNC) {
		1214	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
837	aio_fsync $fh;	1215	aio_fsync $fh;
		1216	}
838	close $fh;	1217	aio_close $fh;
839		1218
840	if (@$objs) {	1219	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1220	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	1221	aio_chmod $fh, SAVE_MODE;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1222	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1223	aio_write $fh, 0, (length $data), $data, 0;
		1224	if ($cf::USE_FSYNC) {
		1225	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
845	aio_fsync $fh;	1226	aio_fsync $fh;
		1227	}
846	close $fh;	1228	aio_close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1229	aio_rename "$filename.pst~", "$filename.pst";
848	}	1230	}
849	} else {	1231	} else {
850	aio_unlink "$filename.pst";	1232	aio_unlink "$filename.pst";
851	}	1233	}
852		1234
853	aio_rename "$filename~", $filename;	1235	aio_rename "$filename~", $filename;
		1236
		1237	$filename =~ s%/[^/]+$%%;
		1238	aio_pathsync $filename if $cf::USE_FSYNC;
854	} else {	1239	} else {
855	warn "FATAL: $filename~: $!\n";	1240	error "unable to save objects: $filename~: $!\n";
856	}	1241	}
857	} else {	1242	} else {
858	aio_unlink $filename;	1243	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1244	aio_unlink "$filename.pst";
860	}	1245	}
861	}	1246	};
862	}	1247	}
863		1248
864	sub object_freezer_as_string {	1249	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1250	my ($rdata, $objs) = @_;
866		1251
…		…
878	or return;	1263	or return;
879		1264
880	unless (aio_stat "$filename.pst") {	1265	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1266	(aio_load "$filename.pst", $av) >= 0
882	or return;	1267	or return;
		1268
883	$av = eval { (Storable::thaw $av)->{objs} };	1269	my $st = eval { Coro::Storable::thaw $av };
		1270	$av = $st->{objs};
884	}	1271	}
885		1272
		1273	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1274	trace sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1275	$decname, length $data, scalar @{$av || []}
		1276	if $VERBOSE_IO;
		1277
888	return ($data, $av);	1278	($data, $av)
889	}	1279	}
		1280
		1281	=head2 COMMAND CALLBACKS
		1282
		1283	=over 4
		1284
		1285	=cut
890		1286
891	#############################################################################	1287	#############################################################################
892	# command handling &c	1288	# command handling &c
893		1289
894	=item cf::register_command $name => \&callback($ob,$args);	1290	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1303	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1304	}
909		1305
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1306	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1307
912	Register a callbackf ro execution when the client sends an extcmd packet.	1308	Register a callback for execution when the client sends an (synchronous)
		1309	extcmd packet. Ext commands will be processed in the order they are
		1310	received by the server, like other user commands. The first argument is
		1311	the logged-in player. Ext commands can only be processed after a player
		1312	has logged in successfully.
913		1313
914	If the callback returns something, it is sent back as if reply was being	1314	If the callback returns something, it is sent back as if reply was being
915	called.	1315	called.
916		1316
		1317	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1318
		1319	Register a callback for execution when the client sends an (asynchronous)
		1320	exticmd packet. Exti commands are processed by the server as soon as they
		1321	are received, i.e. out of order w.r.t. other commands. The first argument
		1322	is a client socket. Exti commands can be received anytime, even before
		1323	log-in.
		1324
		1325	If the callback returns something, it is sent back as if reply was being
		1326	called.
		1327
917	=cut	1328	=cut
918		1329
919	sub register_extcmd {	1330	sub register_extcmd {
920	my ($name, $cb) = @_;	1331	my ($name, $cb) = @_;
921		1332
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1333	$EXTCMD{$name} = $cb;
926	}	1334	}
		1335
		1336	sub register_exticmd {
		1337	my ($name, $cb) = @_;
		1338
		1339	$EXTICMD{$name} = $cb;
		1340	}
		1341
		1342	use File::Glob ();
927		1343
928	cf::player->attach (	1344	cf::player->attach (
929	on_command => sub {	1345	on_unknown_command => sub {
930	my ($pl, $name, $params) = @_;	1346	my ($pl, $name, $params) = @_;
931		1347
932	my $cb = $COMMAND{$name}	1348	my $cb = $COMMAND{$name}
933	or return;	1349	or return;
934		1350
…		…
939	cf::override;	1355	cf::override;
940	},	1356	},
941	on_extcmd => sub {	1357	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1358	my ($pl, $buf) = @_;
943		1359
944	my $msg = eval { from_json $buf };	1360	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1361
946	if (ref $msg) {	1362	if (ref $msg) {
		1363	my ($type, $reply, @payload) =
		1364	"ARRAY" eq ref $msg
		1365	? @$msg
		1366	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1367
		1368	my @reply;
		1369
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1370	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1371	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1372	}
		1373
		1374	$pl->ext_reply ($reply, @reply)
		1375	if $reply;
		1376
952	} else {	1377	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1378	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1379	}
955		1380
956	cf::override;	1381	cf::override;
957	},	1382	},
958	);	1383	);
959		1384
960	sub register {	1385	# "readahead" all extensions
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1386	sub cache_extensions {
967	my ($path) = @_;	1387	my $grp = IO::AIO::aio_group;
968		1388
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1389	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
970	my $base = $1;	1390	for (grep /\.ext$/, @{$_[0]}) {
971	my $pkg = $1;	1391	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974
975	warn "loading '$path' into '$pkg'\n";
976
977	open my $fh, "<:utf8", $path
978	or die "$path: $!";
979
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }
1009
1010	# remove commands
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}	1392	}
1019	}	1393	};
1020		1394
1021	# remove extcmds	1395	$grp
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}	1396	}
1035		1397
1036	sub load_extensions {	1398	sub load_extensions {
		1399	info "loading extensions...";
		1400
		1401	cf::sync_job {
		1402	my %todo;
		1403
1037	for my $ext (<$LIBDIR/*.ext>) {	1404	for my $path (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;	1405	next unless -r $path;
1039	eval {	1406
1040	load_extension $ext;	1407	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1408	my $base = $1;
		1409	my $pkg = $1;
		1410	$pkg =~ s/[^[:word:]]/_/g;
		1411	$pkg = "ext::$pkg";
		1412
		1413	open my $fh, "<:utf8", $path
		1414	or die "$path: $!";
		1415
		1416	my $source = do { local $/; <$fh> };
		1417
		1418	my %ext = (
		1419	path => $path,
		1420	base => $base,
		1421	pkg => $pkg,
		1422	);
		1423
		1424	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1425	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1426
		1427	$ext{source} =
		1428	"package $pkg; use common::sense;\n"
		1429	. "#line 1 \"$path\"\n{\n"
		1430	. $source
		1431	. "\n};\n1";
		1432
		1433	$todo{$base} = \%ext;
		1434	}
		1435
		1436	my $pass = 0;
		1437	my %done;
		1438	while (%todo) {
		1439	my $progress;
		1440
		1441	++$pass;
		1442
		1443	ext:
		1444	while (my ($k, $v) = each %todo) {
		1445	for (split /,\s*/, $v->{meta}{depends}) {
		1446	next ext
		1447	unless exists $done{$_};
		1448	}
		1449
		1450	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1451
		1452	my $active = eval $v->{source};
		1453
		1454	if (length $@) {
		1455	error "$v->{path}: $@\n";
		1456	undef $@; # work around perl 5.10.0 utf-8 caching bug
		1457
		1458	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1459	if exists $v->{meta}{mandatory};
		1460
		1461	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1462	delete $todo{$k};
		1463	} else {
		1464	$done{$k} = delete $todo{$k};
		1465	push @EXTS, $v->{pkg};
		1466	$progress = 1;
		1467
		1468	info "$v->{base}: extension inactive.\n"
		1469	unless $active;
		1470	}
1041	1	1471	}
1042	} or warn "$ext not loaded: $@";	1472
		1473	unless ($progress) {
		1474	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1475
		1476	while (my ($k, $v) = each %todo) {
		1477	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1478	if exists $v->{meta}{mandatory};
		1479	}
		1480	}
		1481	}
1043	}	1482	};
1044	}	1483	}
1045		1484
1046	#############################################################################	1485	#############################################################################
1047	# load/save/clean perl data associated with a map
1048		1486
1049	*cf::mapsupport::on_clean = sub {	1487	=back
		1488
		1489	=head2 CORE EXTENSIONS
		1490
		1491	Functions and methods that extend core deliantra objects.
		1492
		1493	=cut
		1494
		1495	package cf::player;
		1496
		1497	use Coro::AIO;
		1498
		1499	=head3 cf::player
		1500
		1501	=over 4
		1502
		1503	=item cf::player::num_playing
		1504
		1505	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1506
		1507	=cut
		1508
		1509	sub num_playing {
		1510	scalar grep
		1511	$_->ob->map
		1512	&& !$_->hidden
		1513	&& !$_->ob->flag (cf::FLAG_WIZ),
		1514	cf::player::list
		1515	}
		1516
		1517	=item cf::player::find $login
		1518
		1519	Returns the given player object, loading it if necessary (might block).
		1520
		1521	=cut
		1522
		1523	sub playerdir($) {
		1524	"$PLAYERDIR/"
		1525	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1526	}
		1527
		1528	sub path($) {
		1529	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1530
		1531	(playerdir $login) . "/playerdata"
		1532	}
		1533
		1534	sub find_active($) {
		1535	$cf::PLAYER{$_[0]}
		1536	and $cf::PLAYER{$_[0]}->active
		1537	and $cf::PLAYER{$_[0]}
		1538	}
		1539
		1540	sub exists($) {
1050	my ($map) = @_;	1541	my ($login) = @_;
1051		1542
1052	my $path = $map->tmpname;	1543	$cf::PLAYER{$login}
1053	defined $path or return;	1544	or !aio_stat path $login
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}	1545	}
1066		1546
1067	# TODO: compatibility cruft, remove when no longer needed	1547	sub find($) {
		1548	return $cf::PLAYER{$_[0]} || do {
		1549	my $login = $_[0];
		1550
		1551	my $guard = cf::lock_acquire "user_find:$login";
		1552
		1553	$cf::PLAYER{$_[0]} || do {
		1554	# rename old playerfiles to new ones
		1555	#TODO: remove when no longer required
		1556	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1557	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1558	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1559	aio_unlink +(playerdir $login) . "/$login.pl";
		1560
		1561	my $f = new_from_file cf::object::thawer path $login
		1562	or return;
		1563
		1564	my $pl = cf::player::load_pl $f
		1565	or return;
		1566
		1567	local $cf::PLAYER_LOADING{$login} = $pl;
		1568	$f->resolve_delayed_derefs;
		1569	$cf::PLAYER{$login} = $pl
		1570	}
		1571	}
		1572	}
		1573
1068	cf::player->attach (	1574	cf::player->attach (
1069	on_load => sub {	1575	on_load => sub {
1070	my ($pl, $path) = @_;	1576	my ($pl, $path) = @_;
1071		1577
1072	for my $o (all_objects $pl->ob) {	1578	# restore slots saved in save, below
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1579	my $slots = delete $pl->{_slots};
1074	$o->set_ob_key_value ("_perl_data");
1075		1580
1076	%$o = %{ Storable::thaw pack "H*", $value };	1581	$pl->ob->current_weapon ($slots->[0]);
1077	}	1582	$pl->combat_ob ($slots->[1]);
1078	}	1583	$pl->ranged_ob ($slots->[2]);
1079	},	1584	},
1080	);	1585	);
1081		1586
1082	#############################################################################	1587	sub save($) {
		1588	my ($pl) = @_;
1083		1589
1084	=head2 CORE EXTENSIONS	1590	return if $pl->{deny_save};
1085		1591
1086	Functions and methods that extend core crossfire objects.	1592	my $path = path $pl;
		1593	my $guard = cf::lock_acquire "user_save:$path";
1087		1594
1088	=head3 cf::player	1595	return if $pl->{deny_save};
		1596
		1597	aio_mkdir playerdir $pl, 0770;
		1598	$pl->{last_save} = $cf::RUNTIME;
		1599
		1600	cf::get_slot 0.01;
		1601
		1602	# save slots, to be restored later
		1603	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1604
		1605	$pl->save_pl ($path);
		1606	cf::cede_to_tick;
		1607	}
		1608
		1609	sub new($) {
		1610	my ($login) = @_;
		1611
		1612	my $self = create;
		1613
		1614	$self->ob->name ($login);
		1615	$self->{deny_save} = 1;
		1616
		1617	$cf::PLAYER{$login} = $self;
		1618
		1619	$self
		1620	}
		1621
		1622	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1623
		1624	=cut
		1625
		1626	sub send_msg {
		1627	my $ns = shift->ns
		1628	or return;
		1629	$ns->send_msg (@_);
		1630	}
		1631
		1632	=item $pl->quit_character
		1633
		1634	Nukes the player without looking back. If logged in, the connection will
		1635	be destroyed. May block for a long time.
		1636
		1637	=cut
		1638
		1639	sub quit_character {
		1640	my ($pl) = @_;
		1641
		1642	my $name = $pl->ob->name;
		1643
		1644	$pl->{deny_save} = 1;
		1645	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1646
		1647	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1648	$pl->deactivate;
		1649	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1650	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1651	$pl->ns->destroy if $pl->ns;
		1652
		1653	my $path = playerdir $pl;
		1654	my $temp = "$path~$cf::RUNTIME~deleting~";
		1655	aio_rename $path, $temp;
		1656	delete $cf::PLAYER{$pl->ob->name};
		1657	$pl->destroy;
		1658
		1659	my $prefix = qr<^~\Q$name\E/>;
		1660
		1661	# nuke player maps
		1662	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1663
		1664	IO::AIO::aio_rmtree $temp;
		1665	}
		1666
		1667	=item $pl->kick
		1668
		1669	Kicks a player out of the game. This destroys the connection.
		1670
		1671	=cut
		1672
		1673	sub kick {
		1674	my ($pl, $kicker) = @_;
		1675
		1676	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1677	$pl->killer ("kicked");
		1678	$pl->ns->destroy;
		1679	}
		1680
		1681	=item cf::player::list_logins
		1682
		1683	Returns am arrayref of all valid playernames in the system, can take a
		1684	while and may block, so not sync_job-capable, ever.
		1685
		1686	=cut
		1687
		1688	sub list_logins {
		1689	my $dirs = aio_readdir $PLAYERDIR
		1690	or return [];
		1691
		1692	my @logins;
		1693
		1694	for my $login (@$dirs) {
		1695	my $path = path $login;
		1696
		1697	# a .pst is a dead give-away for a valid player
		1698	# if no pst file found, open and chekc for blocked users
		1699	if (aio_stat "$path.pst") {
		1700	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1701	aio_read $fh, 0, 512, my $buf, 0 or next;
		1702	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1703	}
		1704
		1705	utf8::decode $login;
		1706	push @logins, $login;
		1707	}
		1708
		1709	\@logins
		1710	}
		1711
		1712	=item $player->maps
		1713
		1714	=item cf::player::maps $login
		1715
		1716	Returns an arrayref of map paths that are private for this
		1717	player. May block.
		1718
		1719	=cut
		1720
		1721	sub maps($) {
		1722	my ($pl) = @_;
		1723
		1724	$pl = ref $pl ? $pl->ob->name : $pl;
		1725
		1726	my $files = aio_readdir playerdir $pl
		1727	or return;
		1728
		1729	my @paths;
		1730
		1731	for (@$files) {
		1732	utf8::decode $_;
		1733	next if /\.(?:pl|pst)$/;
		1734	next unless /^$PATH_SEP/o;
		1735
		1736	push @paths, cf::map::normalise "~$pl/$_";
		1737	}
		1738
		1739	\@paths
		1740	}
		1741
		1742	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1743
		1744	Expand deliantra pod fragments into protocol xml.
		1745
		1746	=item $player->ext_reply ($msgid, @msg)
		1747
		1748	Sends an ext reply to the player.
		1749
		1750	=cut
		1751
		1752	sub ext_reply($$@) {
		1753	my ($self, $id, @msg) = @_;
		1754
		1755	$self->ns->ext_reply ($id, @msg)
		1756	}
		1757
		1758	=item $player->ext_msg ($type, @msg)
		1759
		1760	Sends an ext event to the client.
		1761
		1762	=cut
		1763
		1764	sub ext_msg($$@) {
		1765	my ($self, $type, @msg) = @_;
		1766
		1767	$self->ns->ext_msg ($type, @msg);
		1768	}
		1769
		1770	=head3 cf::region
1089		1771
1090	=over 4	1772	=over 4
1091		1773
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut	1774	=cut
1097		1775
1098	sub cf::player::exists($) {	1776	package cf::region;
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102		1777
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)	1778	=item cf::region::find_by_path $path
1104		1779
1105	Sends an ext reply to the player.	1780	Tries to decuce the likely region for a map knowing only its path.
1106		1781
1107	=cut	1782	=cut
1108		1783
1109	sub cf::player::ext_reply($$$%) {	1784	sub find_by_path($) {
1110	my ($self, $id, %msg) = @_;	1785	my ($path) = @_;
1111		1786
1112	$msg{msgid} = $id;	1787	$path =~ s/^~[^\/]*//; # skip ~login
1113		1788
1114	$self->send ("ext " . to_json \%msg);	1789	my ($match, $specificity);
		1790
		1791	for my $region (list) {
		1792	if ($region->{match} && $path =~ $region->{match}) {
		1793	($match, $specificity) = ($region, $region->specificity)
		1794	if $region->specificity > $specificity;
		1795	}
		1796	}
		1797
		1798	$match
1115	}	1799	}
1116		1800
1117	=back	1801	=back
1118
1119		1802
1120	=head3 cf::map	1803	=head3 cf::map
1121		1804
1122	=over 4	1805	=over 4
1123		1806
…		…
1126	package cf::map;	1809	package cf::map;
1127		1810
1128	use Fcntl;	1811	use Fcntl;
1129	use Coro::AIO;	1812	use Coro::AIO;
1130		1813
		1814	use overload
		1815	'""' => \&as_string,
		1816	fallback => 1;
		1817
1131	our $MAX_RESET = 7200;	1818	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1819	our $DEFAULT_RESET = 3000;
1133		1820
1134	sub generate_random_map {	1821	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1822	my ($self, $rmp) = @_;
		1823
		1824	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1136		1825
1137	# mit "rum" bekleckern, nicht	1826	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1827	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1828	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1829	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1830	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1831	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1832	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1833	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1834	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1835	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1836	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1837	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1838	(cf::region::find $rmp->{region}), $rmp->{custom}
		1839	)
1151	}	1840	}
1152		1841
1153	# and all this just because we cannot iterate over	1842	=item cf::map->register ($regex, $prio)
1154	# all maps in C++...
1155	sub change_all_map_light {
1156	my ($change) = @_;
1157		1843
1158	$_->change_map_light ($change) for values %cf::MAP;	1844	Register a handler for the map path matching the given regex at the
1159	}	1845	givne priority (higher is better, built-in handlers have priority 0, the
		1846	default).
1160		1847
1161	sub try_load_header($) {	1848	=cut
		1849
		1850	sub register {
		1851	my (undef, $regex, $prio) = @_;
		1852	my $pkg = caller;
		1853
		1854	no strict;
		1855	push @{"$pkg\::ISA"}, __PACKAGE__;
		1856
		1857	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1858	}
		1859
		1860	# also paths starting with '/'
		1861	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1862
		1863	sub thawer_merge {
		1864	my ($self, $merge) = @_;
		1865
		1866	# we have to keep some variables in memory intact
		1867	local $self->{path};
		1868	local $self->{load_path};
		1869
		1870	$self->SUPER::thawer_merge ($merge);
		1871	}
		1872
		1873	sub normalise {
1162	my ($path) = @_;	1874	my ($path, $base) = @_;
		1875
		1876	$path = "$path"; # make sure its a string
		1877
		1878	$path =~ s/\.map$//;
		1879
		1880	# map plan:
		1881	#
		1882	# /! non-realised random map exit (special hack!)
		1883	# {... are special paths that are not being touched
		1884	# ?xxx/... are special absolute paths
		1885	# ?random/... random maps
		1886	# /... normal maps
		1887	# ~user/... per-player map of a specific user
		1888
		1889	$path =~ s/$PATH_SEP/\//go;
		1890
		1891	# treat it as relative path if it starts with
		1892	# something that looks reasonable
		1893	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1894	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1895
		1896	$base =~ s{[^/]+/?$}{};
		1897	$path = "$base/$path";
		1898	}
		1899
		1900	for ($path) {
		1901	redo if s{//}{/};
		1902	redo if s{/\.?/}{/};
		1903	redo if s{/[^/]+/\.\./}{/};
		1904	}
		1905
		1906	$path
		1907	}
		1908
		1909	sub new_from_path {
		1910	my (undef, $path, $base) = @_;
		1911
		1912	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1913
		1914	$path = normalise $path, $base;
		1915
		1916	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1917	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1918	my $self = bless cf::map::new, $pkg;
		1919	$self->{path} = $path; $self->path ($path);
		1920	$self->init; # pass $1 etc.
		1921	return $self;
		1922	}
		1923	}
		1924
		1925	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1926	()
		1927	}
		1928
		1929	sub init {
		1930	my ($self) = @_;
		1931
		1932	$self
		1933	}
		1934
		1935	sub as_string {
		1936	my ($self) = @_;
		1937
		1938	"$self->{path}"
		1939	}
		1940
		1941	# the displayed name, this is a one way mapping
		1942	sub visible_name {
		1943	&as_string
		1944	}
		1945
		1946	# the original (read-only) location
		1947	sub load_path {
		1948	my ($self) = @_;
		1949
		1950	"$MAPDIR/$self->{path}.map"
		1951	}
		1952
		1953	# the temporary/swap location
		1954	sub save_path {
		1955	my ($self) = @_;
		1956
		1957	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1958	"$TMPDIR/$path.map"
		1959	}
		1960
		1961	# the unique path, undef == no special unique path
		1962	sub uniq_path {
		1963	my ($self) = @_;
		1964
		1965	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1966	"$UNIQUEDIR/$path"
		1967	}
		1968
		1969	sub decay_objects {
		1970	my ($self) = @_;
		1971
		1972	return if $self->{deny_reset};
		1973
		1974	$self->do_decay_objects;
		1975	}
		1976
		1977	sub unlink_save {
		1978	my ($self) = @_;
		1979
		1980	utf8::encode (my $save = $self->save_path);
		1981	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1982	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1983	}
		1984
		1985	sub load_header_from($) {
		1986	my ($self, $path) = @_;
1163		1987
1164	utf8::encode $path;	1988	utf8::encode $path;
1165	aio_open $path, O_RDONLY, 0	1989	my $f = new_from_file cf::object::thawer $path
1166	or return;	1990	or return;
1167		1991
1168	my $map = cf::map::new	1992	$self->_load_header ($f)
1169	or return;	1993	or return;
1170		1994
1171	$map->load_header ($path)	1995	local $MAP_LOADING{$self->{path}} = $self;
		1996	$f->resolve_delayed_derefs;
		1997
		1998	$self->{load_path} = $path;
		1999
		2000	1
		2001	}
		2002
		2003	sub load_header_orig {
		2004	my ($self) = @_;
		2005
		2006	$self->load_header_from ($self->load_path)
		2007	}
		2008
		2009	sub load_header_temp {
		2010	my ($self) = @_;
		2011
		2012	$self->load_header_from ($self->save_path)
		2013	}
		2014
		2015	sub prepare_temp {
		2016	my ($self) = @_;
		2017
		2018	$self->last_access ((delete $self->{last_access})
		2019	|| $cf::RUNTIME); #d#
		2020	# safety
		2021	$self->{instantiate_time} = $cf::RUNTIME
		2022	if $self->{instantiate_time} > $cf::RUNTIME;
		2023	}
		2024
		2025	sub prepare_orig {
		2026	my ($self) = @_;
		2027
		2028	$self->{load_original} = 1;
		2029	$self->{instantiate_time} = $cf::RUNTIME;
		2030	$self->last_access ($cf::RUNTIME);
		2031	$self->instantiate;
		2032	}
		2033
		2034	sub load_header {
		2035	my ($self) = @_;
		2036
		2037	if ($self->load_header_temp) {
		2038	$self->prepare_temp;
		2039	} else {
		2040	$self->load_header_orig
1172	or return;	2041	or return;
		2042	$self->prepare_orig;
		2043	}
1173		2044
1174	$map->{load_path} = $path;	2045	$self->{deny_reset} = 1
		2046	if $self->no_reset;
1175		2047
1176	$map	2048	$self->default_region (cf::region::find_by_path $self->{path})
1177	}	2049	unless $self->default_region;
1178		2050
		2051	1
		2052	}
		2053
		2054	sub find;
1179	sub find_map {	2055	sub find {
1180	my ($path, $origin) = @_;	2056	my ($path, $origin) = @_;
1181		2057
1182	#warn "find_map<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	2058	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		2059
1187	cf::lock_wait "map_find:$key";	2060	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1188
1189	$cf::MAP{$key} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	2061	my $guard2 = cf::lock_acquire "map_find:$path";
1191		2062
1192	# do it the slow way	2063	$cf::MAP{$path} || do {
1193	my $map = try_load_header $path->save_path;	2064	my $map = new_from_path cf::map $path
1194
1195	if ($map) {
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	2065	or return;
1207		2066
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->instantiate;
1211
1212	# per-player maps become, after loading, normal maps
1213	$map->per_player (0) if $path->{user_rel};
1214	}
1215	#Coro::Timer::sleep 1;#d#
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	2067	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		2068
1222	if ($map->should_reset) {	2069	$map->load_header
		2070	or return;
		2071
		2072	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2073	# doing this can freeze the server in a sync job, obviously
		2074	#$cf::WAIT_FOR_TICK->wait;
		2075	undef $guard2;
		2076	undef $guard1;
1223	$map->reset;	2077	$map->reset;
1224	$map = find_map $path;	2078	return find $path;
1225	}	2079	}
1226		2080
1227	$cf::MAP{$key} = $map	2081	$cf::MAP{$path} = $map
1228	}	2082	}
1229	}	2083	}
		2084
		2085	sub pre_load { }
		2086	#sub post_load { } # XS
1230		2087
1231	sub load {	2088	sub load {
1232	my ($self) = @_;	2089	my ($self) = @_;
1233		2090
		2091	local $self->{deny_reset} = 1; # loading can take a long time
		2092
1234	my $path = $self->{path};	2093	my $path = $self->{path};
		2094
		2095	{
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2096	my $guard = cf::lock_acquire "map_data:$path";
1236		2097
		2098	return unless $self->valid;
1237	return if $self->in_memory != cf::MAP_SWAPPED;	2099	return unless $self->in_memory == cf::MAP_SWAPPED;
1238		2100
1239	$self->in_memory (cf::MAP_LOADING);	2101	$self->in_memory (cf::MAP_LOADING);
1240		2102
1241	$self->alloc;	2103	$self->alloc;
1242	$self->load_objects ($self->{load_path}, 1)	2104
		2105	$self->pre_load;
		2106	cf::cede_to_tick;
		2107
		2108	my $f = new_from_file cf::object::thawer $self->{load_path};
		2109	$f->skip_block;
		2110	$self->_load_objects ($f)
1243	or return;	2111	or return;
1244		2112
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2113	$self->post_load_original
1246	if delete $self->{load_original};	2114	if delete $self->{load_original};
1247		2115
1248	if (my $uniq = $path->uniq_path) {	2116	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	2117	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	2118	unless (aio_stat $uniq) {
		2119	if (my $f = new_from_file cf::object::thawer $uniq) {
1251	$self->clear_unique_items;	2120	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	2121	$self->_load_objects ($f);
		2122	$f->resolve_delayed_derefs;
		2123	}
1253	}	2124	}
1254	}	2125	}
1255		2126
		2127	$f->resolve_delayed_derefs;
		2128
		2129	cf::cede_to_tick;
1256	# now do the right thing for maps	2130	# now do the right thing for maps
1257	$self->link_multipart_objects;	2131	$self->link_multipart_objects;
1258
1259	if ($self->{path}->is_style_map) {
1260	$self->{deny_save} = 1;
1261	$self->{deny_reset} = 1;
1262	} else {
1263	$self->fix_auto_apply;
1264	$self->decay_objects;
1265	$self->update_buttons;
1266	$self->set_darkness_map;
1267	$self->difficulty ($self->estimate_difficulty)	2132	$self->difficulty ($self->estimate_difficulty)
1268	unless $self->difficulty;	2133	unless $self->difficulty;
		2134	cf::cede_to_tick;
		2135
		2136	unless ($self->{deny_activate}) {
		2137	$self->decay_objects;
		2138	$self->fix_auto_apply;
		2139	$self->update_buttons;
		2140	cf::cede_to_tick;
1269	$self->activate;	2141	$self->activate;
1270	}	2142	}
1271		2143
		2144	$self->{last_save} = $cf::RUNTIME;
		2145	$self->last_access ($cf::RUNTIME);
		2146
1272	$self->in_memory (cf::MAP_IN_MEMORY);	2147	$self->in_memory (cf::MAP_ACTIVE);
1273	}	2148	}
1274		2149
1275	sub load_map_sync {	2150	$self->post_load;
		2151	}
		2152
		2153	# customize the map for a given player, i.e.
		2154	# return the _real_ map. used by e.g. per-player
		2155	# maps to change the path to ~playername/mappath
		2156	sub customise_for {
		2157	my ($self, $ob) = @_;
		2158
		2159	return find "~" . $ob->name . "/" . $self->{path}
		2160	if $self->per_player;
		2161
		2162	# return find "?party/" . $ob->name . "/" . $self->{path}
		2163	# if $self->per_party;
		2164
		2165	$self
		2166	}
		2167
		2168	# find and load all maps in the 3x3 area around a map
		2169	sub load_neighbours {
		2170	my ($map) = @_;
		2171
		2172	my @neigh; # diagonal neighbours
		2173
		2174	for (0 .. 3) {
		2175	my $neigh = $map->tile_path ($_)
		2176	or next;
		2177	$neigh = find $neigh, $map
		2178	or next;
		2179	$neigh->load;
		2180
		2181	# now find the diagonal neighbours
		2182	push @neigh,
		2183	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2184	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2185	}
		2186
		2187	for (grep defined $_->[0], @neigh) {
		2188	my ($path, $origin) = @$_;
		2189	my $neigh = find $path, $origin
		2190	or next;
		2191	$neigh->load;
		2192	}
		2193	}
		2194
		2195	sub find_sync {
1276	my ($path, $origin) = @_;	2196	my ($path, $origin) = @_;
1277		2197
1278	#warn "load_map_sync<$path, $origin>\n";#d#	2198	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2199	if $Coro::current == $Coro::main;
1279		2200
1280	cf::sync_job {	2201	find $path, $origin
1281	my $map = cf::map::find_map $path, $origin	2202	}
1282	or return;	2203
		2204	sub do_load_sync {
		2205	my ($map) = @_;
		2206
		2207	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2208	if $Coro::current == $Coro::main;
		2209
1283	$map->load;	2210	$map->load;
1284	$map	2211	}
		2212
		2213	our %MAP_PREFETCH;
		2214	our $MAP_PREFETCHER = undef;
		2215
		2216	sub find_async {
		2217	my ($path, $origin, $load) = @_;
		2218
		2219	$path = normalise $path, $origin && $origin->{path};
		2220
		2221	if (my $map = $cf::MAP{$path}) {
		2222	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2223	}
		2224
		2225	$MAP_PREFETCH{$path} |= $load;
		2226
		2227	$MAP_PREFETCHER ||= cf::async {
		2228	$Coro::current->{desc} = "map prefetcher";
		2229
		2230	while (%MAP_PREFETCH) {
		2231	while (my ($k, $v) = each %MAP_PREFETCH) {
		2232	if (my $map = find $k) {
		2233	$map->load if $v;
		2234	}
		2235
		2236	delete $MAP_PREFETCH{$k};
		2237	}
		2238	}
		2239	undef $MAP_PREFETCHER;
		2240	};
		2241	$MAP_PREFETCHER->prio (6);
		2242
		2243	()
		2244	}
		2245
		2246	# common code, used by both ->save and ->swapout
		2247	sub _save {
		2248	my ($self) = @_;
		2249
		2250	$self->{last_save} = $cf::RUNTIME;
		2251
		2252	return unless $self->dirty;
		2253
		2254	my $save = $self->save_path; utf8::encode $save;
		2255	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2256
		2257	$self->{load_path} = $save;
		2258
		2259	return if $self->{deny_save};
		2260
		2261	local $self->{last_access} = $self->last_access;#d#
		2262
		2263	cf::async {
		2264	$Coro::current->{desc} = "map player save";
		2265	$_->contr->save for $self->players;
		2266	};
		2267
		2268	cf::get_slot 0.02;
		2269
		2270	if ($uniq) {
		2271	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2272	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2273	} else {
		2274	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1285	}	2275	}
1286	}	2276	}
1287		2277
1288	sub save {	2278	sub save {
1289	my ($self) = @_;	2279	my ($self) = @_;
1290		2280
1291	$self->{last_save} = $cf::RUNTIME;	2281	my $lock = cf::lock_acquire "map_data:$self->{path}";
1292		2282
1293	return unless $self->dirty;	2283	$self->_save;
1294
1295	my $save = $self->{path}->save_path; utf8::encode $save;
1296	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1297
1298	$self->{load_path} = $save;
1299
1300	return if $self->{deny_save};
1301
1302	if ($uniq) {
1303	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1304	$self->save_objects ($uniq, cf::IO_UNIQUES);
1305	} else {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1307	}
1308	}	2284	}
1309		2285
1310	sub swap_out {	2286	sub swap_out {
1311	my ($self) = @_;	2287	my ($self) = @_;
1312		2288
		2289	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2290
		2291	return if $self->in_memory != cf::MAP_ACTIVE;
		2292	return if $self->{deny_save};
1313	return if $self->players;	2293	return if $self->players;
1314	return if $self->in_memory != cf::MAP_IN_MEMORY;
1315	return if $self->{deny_save};
1316		2294
		2295	# first deactivate the map and "unlink" it from the core
		2296	$self->deactivate;
		2297	$_->clear_links_to ($self) for values %cf::MAP;
		2298	$self->in_memory (cf::MAP_SWAPPED);
		2299
		2300	# then atomically save
1317	$self->save;	2301	$self->_save;
		2302
		2303	# then free the map
1318	$self->clear;	2304	$self->clear;
1319	$self->in_memory (cf::MAP_SWAPPED);
1320	}	2305	}
1321		2306
1322	sub reset_at {	2307	sub reset_at {
1323	my ($self) = @_;	2308	my ($self) = @_;
1324		2309
1325	# TODO: safety, remove and allow resettable per-player maps	2310	# TODO: safety, remove and allow resettable per-player maps
1326	return 1e99 if $self->{path}{user_rel};
1327	return 1e99 if $self->{deny_reset};	2311	return 1e99 if $self->{deny_reset};
1328		2312
1329	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2313	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1330	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2314	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1331		2315
…		…
1336	my ($self) = @_;	2320	my ($self) = @_;
1337		2321
1338	$self->reset_at <= $cf::RUNTIME	2322	$self->reset_at <= $cf::RUNTIME
1339	}	2323	}
1340		2324
1341	sub unlink_save {
1342	my ($self) = @_;
1343
1344	utf8::encode (my $save = $self->{path}->save_path);
1345	aioreq_pri 3; IO::AIO::aio_unlink $save;
1346	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1347	}
1348
1349	sub rename {
1350	my ($self, $new_path) = @_;
1351
1352	$self->unlink_save;
1353
1354	delete $cf::MAP{$self->path};
1355	$self->{path} = new cf::path $new_path;
1356	$self->path ($self->{path}->as_string);
1357	$cf::MAP{$self->path} = $self;
1358
1359	$self->save;
1360	}
1361
1362	sub reset {	2325	sub reset {
1363	my ($self) = @_;	2326	my ($self) = @_;
1364		2327
		2328	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2329
1365	return if $self->players;	2330	return if $self->players;
1366	return if $self->{path}{user_rel};#d#
1367		2331
1368	warn "resetting map ", $self->path;#d#	2332	cf::trace "resetting map ", $self->path, "\n";
		2333
		2334	$self->in_memory (cf::MAP_SWAPPED);
		2335
		2336	# need to save uniques path
		2337	unless ($self->{deny_save}) {
		2338	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2339
		2340	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2341	if $uniq;
		2342	}
1369		2343
1370	delete $cf::MAP{$self->path};	2344	delete $cf::MAP{$self->path};
1371		2345
		2346	$self->deactivate;
1372	$_->clear_links_to ($self) for values %cf::MAP;	2347	$_->clear_links_to ($self) for values %cf::MAP;
		2348	$self->clear;
1373		2349
1374	$self->unlink_save;	2350	$self->unlink_save;
1375	$self->destroy;	2351	$self->destroy;
1376	}	2352	}
1377		2353
1378	my $nuke_counter = "aaaa";	2354	my $nuke_counter = "aaaa";
1379		2355
1380	sub nuke {	2356	sub nuke {
1381	my ($self) = @_;	2357	my ($self) = @_;
1382		2358
		2359	{
		2360	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2361
		2362	delete $cf::MAP{$self->path};
		2363
		2364	$self->unlink_save;
		2365
		2366	bless $self, "cf::map::wrap";
		2367	delete $self->{deny_reset};
1383	$self->{deny_save} = 1;	2368	$self->{deny_save} = 1;
1384	$self->reset_timeout (1);	2369	$self->reset_timeout (1);
1385	$self->rename ("{nuke}/" . ($nuke_counter++));	2370	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2371
		2372	$cf::MAP{$self->path} = $self;
		2373	}
		2374
1386	$self->reset; # polite request, might not happen	2375	$self->reset; # polite request, might not happen
1387	}	2376	}
1388		2377
1389	sub customise_for {	2378	=item $maps = cf::map::tmp_maps
1390	my ($map, $ob) = @_;
1391		2379
1392	if ($map->per_player) {	2380	Returns an arrayref with all map paths of currently instantiated and saved
1393	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2381	maps. May block.
		2382
		2383	=cut
		2384
		2385	sub tmp_maps() {
1394	}	2386	[
1395		2387	map {
1396	$map	2388	utf8::decode $_;
		2389	/\.map$/
		2390	? normalise $_
		2391	: ()
		2392	} @{ aio_readdir $TMPDIR or [] }
		2393	]
1397	}	2394	}
1398		2395
1399	sub emergency_save {	2396	=item $maps = cf::map::random_maps
1400	local $cf::FREEZE = 1;
1401		2397
1402	warn "enter emergency map save\n";	2398	Returns an arrayref with all map paths of currently instantiated and saved
		2399	random maps. May block.
1403		2400
1404	cf::sync_job {	2401	=cut
1405	warn "begin emergency map save\n";	2402
1406	$_->save for values %cf::MAP;	2403	sub random_maps() {
		2404	[
		2405	map {
		2406	utf8::decode $_;
		2407	/\.map$/
		2408	? normalise "?random/$_"
		2409	: ()
		2410	} @{ aio_readdir $RANDOMDIR or [] }
		2411	]
		2412	}
		2413
		2414	=item cf::map::unique_maps
		2415
		2416	Returns an arrayref of paths of all shared maps that have
		2417	instantiated unique items. May block.
		2418
		2419	=cut
		2420
		2421	sub unique_maps() {
		2422	[
		2423	map {
		2424	utf8::decode $_;
		2425	s/\.map$//; # TODO future compatibility hack
		2426	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2427	? ()
		2428	: normalise $_
		2429	} @{ aio_readdir $UNIQUEDIR or [] }
		2430	]
		2431	}
		2432
		2433	=item cf::map::static_maps
		2434
		2435	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2436	file in the shared directory excluding F</styles> and F</editor>). May
		2437	block.
		2438
		2439	=cut
		2440
		2441	sub static_maps() {
		2442	my @dirs = "";
		2443	my @maps;
		2444
		2445	while (@dirs) {
		2446	my $dir = shift @dirs;
		2447
		2448	next if $dir eq "/styles" || $dir eq "/editor";
		2449
		2450	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2451	or return;
		2452
		2453	for (@$files) {
		2454	s/\.map$// or next;
		2455	utf8::decode $_;
		2456	push @maps, "$dir/$_";
		2457	}
		2458
		2459	push @dirs, map "$dir/$_", @$dirs;
1407	};	2460	}
1408		2461
1409	warn "end emergency map save\n";	2462	\@maps
		2463	}
		2464
		2465	=back
		2466
		2467	=head3 cf::object
		2468
		2469	=cut
		2470
		2471	package cf::object;
		2472
		2473	=over 4
		2474
		2475	=item $ob->inv_recursive
		2476
		2477	Returns the inventory of the object I<and> their inventories, recursively,
		2478	but I<not> the object itself.
		2479
		2480	=cut
		2481
		2482	sub inv_recursive_;
		2483	sub inv_recursive_ {
		2484	map { $_, inv_recursive_ $_->inv } @_
		2485	}
		2486
		2487	sub inv_recursive {
		2488	inv_recursive_ inv $_[0]
		2489	}
		2490
		2491	=item $ref = $ob->ref
		2492
		2493	Creates and returns a persistent reference to an object that can be stored as a string.
		2494
		2495	=item $ob = cf::object::deref ($refstring)
		2496
		2497	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2498	even if the object actually exists. May block.
		2499
		2500	=cut
		2501
		2502	sub deref {
		2503	my ($ref) = @_;
		2504
		2505	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2506	my ($uuid, $name) = ($1, $2);
		2507	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2508	or return;
		2509	$pl->ob->uuid eq $uuid
		2510	or return;
		2511
		2512	$pl->ob
		2513	} else {
		2514	warn "$ref: cannot resolve object reference\n";
		2515	undef
		2516	}
1410	}	2517	}
1411		2518
1412	package cf;	2519	package cf;
1413		2520
1414	=back	2521	=back
1415
1416		2522
1417	=head3 cf::object::player	2523	=head3 cf::object::player
1418		2524
1419	=over 4	2525	=over 4
1420		2526
…		…
1423	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2529	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1424	can be C<undef>. Does the right thing when the player is currently in a	2530	can be C<undef>. Does the right thing when the player is currently in a
1425	dialogue with the given NPC character.	2531	dialogue with the given NPC character.
1426		2532
1427	=cut	2533	=cut
		2534
		2535	our $SAY_CHANNEL = {
		2536	id => "say",
		2537	title => "Map",
		2538	reply => "say ",
		2539	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2540	};
		2541
		2542	our $CHAT_CHANNEL = {
		2543	id => "chat",
		2544	title => "Chat",
		2545	reply => "chat ",
		2546	tooltip => "Player chat and shouts, global to the server.",
		2547	};
1428		2548
1429	# rough implementation of a future "reply" method that works	2549	# rough implementation of a future "reply" method that works
1430	# with dialog boxes.	2550	# with dialog boxes.
1431	#TODO: the first argument must go, split into a $npc->reply_to ( method	2551	#TODO: the first argument must go, split into a $npc->reply_to ( method
1432	sub cf::object::player::reply($$$;$) {	2552	sub cf::object::player::reply($$$;$) {
…		…
1434		2554
1435	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2555	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1436		2556
1437	if ($self->{record_replies}) {	2557	if ($self->{record_replies}) {
1438	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2558	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2559
1439	} else {	2560	} else {
		2561	my $pl = $self->contr;
		2562
		2563	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2564	my $dialog = $pl->{npc_dialog};
		2565	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2566
		2567	} else {
1440	$msg = $npc->name . " says: $msg" if $npc;	2568	$msg = $npc->name . " says: $msg" if $npc;
1441	$self->message ($msg, $flags);	2569	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2570	}
1442	}	2571	}
		2572	}
		2573
		2574	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2575
		2576	=cut
		2577
		2578	sub cf::object::send_msg {
		2579	my $pl = shift->contr
		2580	or return;
		2581	$pl->send_msg (@_);
1443	}	2582	}
1444		2583
1445	=item $player_object->may ("access")	2584	=item $player_object->may ("access")
1446		2585
1447	Returns wether the given player is authorized to access resource "access"	2586	Returns wether the given player is authorized to access resource "access"
…		…
1460		2599
1461	=item $player_object->enter_link	2600	=item $player_object->enter_link
1462		2601
1463	Freezes the player and moves him/her to a special map (C<{link}>).	2602	Freezes the player and moves him/her to a special map (C<{link}>).
1464		2603
1465	The player should be reaosnably safe there for short amounts of time. You	2604	The player should be reasonably safe there for short amounts of time (e.g.
1466	I<MUST> call C<leave_link> as soon as possible, though.	2605	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2606	though, as the player cannot control the character while it is on the link
		2607	map.
		2608
		2609	Will never block.
1467		2610
1468	=item $player_object->leave_link ($map, $x, $y)	2611	=item $player_object->leave_link ($map, $x, $y)
1469		2612
1470	Moves the player out of the specila link map onto the given map. If the	2613	Moves the player out of the special C<{link}> map onto the specified
1471	map is not valid (or omitted), the player will be moved back to the	2614	map. If the map is not valid (or omitted), the player will be moved back
1472	location he/she was before the call to C<enter_link>, or, if that fails,	2615	to the location he/she was before the call to C<enter_link>, or, if that
1473	to the emergency map position.	2616	fails, to the emergency map position.
1474		2617
1475	Might block.	2618	Might block.
1476		2619
1477	=cut	2620	=cut
		2621
		2622	sub link_map {
		2623	unless ($LINK_MAP) {
		2624	$LINK_MAP = cf::map::find "{link}"
		2625	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2626	$LINK_MAP->load;
		2627	}
		2628
		2629	$LINK_MAP
		2630	}
1478		2631
1479	sub cf::object::player::enter_link {	2632	sub cf::object::player::enter_link {
1480	my ($self) = @_;	2633	my ($self) = @_;
1481		2634
1482	$self->deactivate_recursive;	2635	$self->deactivate_recursive;
1483		2636
1484	return if $self->map == $LINK_MAP;	2637	++$self->{_link_recursion};
		2638
		2639	return if UNIVERSAL::isa $self->map, "ext::map_link";
1485		2640
1486	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2641	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1487	if $self->map;	2642	if $self->map && $self->map->{path} ne "{link}";
1488		2643
1489	$self->enter_map ($LINK_MAP, 20, 20);	2644	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1490	}	2645	}
1491		2646
1492	sub cf::object::player::leave_link {	2647	sub cf::object::player::leave_link {
1493	my ($self, $map, $x, $y) = @_;	2648	my ($self, $map, $x, $y) = @_;
		2649
		2650	return unless $self->contr->active;
1494		2651
1495	my $link_pos = delete $self->{_link_pos};	2652	my $link_pos = delete $self->{_link_pos};
1496		2653
1497	unless ($map) {	2654	unless ($map) {
1498	# restore original map position	2655	# restore original map position
1499	($map, $x, $y) = @{ $link_pos || [] };	2656	($map, $x, $y) = @{ $link_pos || [] };
1500	$map = cf::map::find_map $map;	2657	$map = cf::map::find $map;
1501		2658
1502	unless ($map) {	2659	unless ($map) {
1503	($map, $x, $y) = @$EMERGENCY_POSITION;	2660	($map, $x, $y) = @$EMERGENCY_POSITION;
1504	$map = cf::map::find_map $map	2661	$map = cf::map::find $map
1505	or die "FATAL: cannot load emergency map\n";	2662	or die "FATAL: cannot load emergency map\n";
1506	}	2663	}
1507	}	2664	}
1508		2665
1509	($x, $y) = (-1, -1)	2666	($x, $y) = (-1, -1)
1510	unless (defined $x) && (defined $y);	2667	unless (defined $x) && (defined $y);
1511		2668
1512	# use -1 or undef as default coordinates, not 0, 0	2669	# use -1 or undef as default coordinates, not 0, 0
1513	($x, $y) = ($map->enter_x, $map->enter_y)	2670	($x, $y) = ($map->enter_x, $map->enter_y)
1514	if $x <=0 && $y <= 0;	2671	if $x <= 0 && $y <= 0;
1515		2672
1516	$map->load;	2673	$map->load;
		2674	$map->load_neighbours;
1517		2675
		2676	return unless $self->contr->active;
		2677
		2678	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2679	if ($self->enter_map ($map, $x, $y)) {
		2680	# entering was successful
		2681	delete $self->{_link_recursion};
		2682	# only activate afterwards, to support waiting in hooks
1518	$self->activate_recursive;	2683	$self->activate_recursive;
1519	$self->enter_map ($map, $x, $y);
1520	}
1521
1522	cf::player->attach (
1523	on_logout => sub {
1524	my ($pl) = @_;
1525
1526	# abort map switching before logout
1527	if ($pl->ob->{_link_pos}) {
1528	cf::sync_job {
1529	$pl->ob->leave_link
1530	};
1531	}
1532	},	2684	}
1533	on_login => sub {
1534	my ($pl) = @_;
1535		2685
1536	# try to abort aborted map switching on player login :)	2686	}
1537	# should happen only on crashes
1538	if ($pl->ob->{_link_pos}) {
1539	$pl->ob->enter_link;
1540	Coro::async {
1541	# we need this sleep as the login has a concurrent enter_exit running
1542	# and this sleep increases chances of the player not ending up in scorn
1543	Coro::Timer::sleep 1;
1544	$pl->ob->leave_link;
1545	};
1546	}
1547	},
1548	);
1549		2687
1550	=item $player_object->goto_map ($path, $x, $y)	2688	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1551		2689
1552	=cut	2690	Moves the player to the given map-path and coordinates by first freezing
		2691	her, loading and preparing them map, calling the provided $check callback
		2692	that has to return the map if sucecssful, and then unfreezes the player on
		2693	the new (success) or old (failed) map position. In either case, $done will
		2694	be called at the end of this process.
1553		2695
		2696	Note that $check will be called with a potentially non-loaded map, so if
		2697	it needs a loaded map it has to call C<< ->load >>.
		2698
		2699	=cut
		2700
		2701	our $GOTOGEN;
		2702
1554	sub cf::object::player::goto_map {	2703	sub cf::object::player::goto {
1555	my ($self, $path, $x, $y) = @_;	2704	my ($self, $path, $x, $y, $check, $done) = @_;
		2705
		2706	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2707	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2708	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2709	($path, $x, $y) = @$EMERGENCY_POSITION;
		2710	}
		2711
		2712	# do generation counting so two concurrent goto's will be executed in-order
		2713	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1556		2714
1557	$self->enter_link;	2715	$self->enter_link;
1558		2716
1559	(Coro::async {	2717	(async {
1560	$path = new cf::path $path;	2718	$Coro::current->{desc} = "player::goto $path $x $y";
1561		2719
1562	my $map = cf::map::find_map $path->as_string;	2720	# *tag paths override both path and x|y
		2721	if ($path =~ /^\*(.*)$/) {
		2722	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2723	my $ob = $obs[rand @obs];
		2724
		2725	# see if we actually can go there
		2726	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2727	$ob = $obs[rand @obs];
		2728	} else {
		2729	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2730	}
		2731	# else put us there anyways for now #d#
		2732
		2733	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2734	} else {
		2735	($path, $x, $y) = (undef, undef, undef);
		2736	}
		2737	}
		2738
		2739	my $map = eval {
		2740	my $map = defined $path ? cf::map::find $path : undef;
		2741
		2742	if ($map) {
1563	$map = $map->customise_for ($self) if $map;	2743	$map = $map->customise_for ($self);
1564		2744	$map = $check->($map, $x, $y, $self) if $check && $map;
1565	# warn "entering ", $map->path, " at ($x, $y)\n"	2745	} else {
1566	# if $map;
1567
1568	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2746	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2747	}
1569		2748
		2749	$map
		2750	};
		2751
		2752	if ($@) {
		2753	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2754	LOG llevError | logBacktrace, Carp::longmess $@;
		2755	}
		2756
		2757	if ($gen == $self->{_goto_generation}) {
		2758	delete $self->{_goto_generation};
1570	$self->leave_link ($map, $x, $y);	2759	$self->leave_link ($map, $x, $y);
		2760	}
		2761
		2762	$done->($self) if $done;
1571	})->prio (1);	2763	})->prio (1);
1572	}	2764	}
1573		2765
1574	=item $player_object->enter_exit ($exit_object)	2766	=item $player_object->enter_exit ($exit_object)
1575		2767
…		…
1577		2769
1578	sub parse_random_map_params {	2770	sub parse_random_map_params {
1579	my ($spec) = @_;	2771	my ($spec) = @_;
1580		2772
1581	my $rmp = { # defaults	2773	my $rmp = { # defaults
1582	xsize => 10,	2774	xsize => (cf::rndm 15, 40),
1583	ysize => 10,	2775	ysize => (cf::rndm 15, 40),
		2776	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2777	#layout => string,
1584	};	2778	};
1585		2779
1586	for (split /\n/, $spec) {	2780	for (split /\n/, $spec) {
1587	my ($k, $v) = split /\s+/, $_, 2;	2781	my ($k, $v) = split /\s+/, $_, 2;
1588		2782
…		…
1600	# that depends on the exit object	2794	# that depends on the exit object
1601		2795
1602	my $rmp = parse_random_map_params $exit->msg;	2796	my $rmp = parse_random_map_params $exit->msg;
1603		2797
1604	if ($exit->map) {	2798	if ($exit->map) {
1605	$rmp->{region} = $exit->map->region_name;	2799	$rmp->{region} = $exit->region->name;
1606	$rmp->{origin_map} = $exit->map->path;	2800	$rmp->{origin_map} = $exit->map->path;
1607	$rmp->{origin_x} = $exit->x;	2801	$rmp->{origin_x} = $exit->x;
1608	$rmp->{origin_y} = $exit->y;	2802	$rmp->{origin_y} = $exit->y;
		2803
		2804	$exit->map->touch;
1609	}	2805	}
1610		2806
1611	$rmp->{random_seed} ||= $exit->random_seed;	2807	$rmp->{random_seed} ||= $exit->random_seed;
1612		2808
1613	my $data = cf::to_json $rmp;	2809	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1614	my $md5 = Digest::MD5::md5_hex $data;	2810	my $md5 = Digest::MD5::md5_hex $data;
		2811	my $meta = "$RANDOMDIR/$md5.meta";
1615		2812
1616	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2813	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1617	aio_write $fh, 0, (length $data), $data, 0;	2814	aio_write $fh, 0, (length $data), $data, 0;
		2815	undef $fh;
		2816	aio_rename "$meta~", $meta;
1618		2817
		2818	my $slaying = "?random/$md5";
		2819
		2820	if ($exit->valid) {
1619	$exit->slaying ("?random/$md5");	2821	$exit->slaying ("?random/$md5");
1620	$exit->msg (undef);	2822	$exit->msg (undef);
		2823	}
1621	}	2824	}
1622	}	2825	}
1623		2826
1624	sub cf::object::player::enter_exit {	2827	sub cf::object::player::enter_exit {
1625	my ($self, $exit) = @_;	2828	my ($self, $exit) = @_;
1626		2829
1627	return unless $self->type == cf::PLAYER;	2830	return unless $self->type == cf::PLAYER;
1628		2831
1629	$self->enter_link;	2832	$self->enter_link;
1630		2833
1631	(Coro::async {	2834	(async {
		2835	$Coro::current->{desc} = "enter_exit";
		2836
1632	unless (eval {	2837	unless (eval {
		2838	$self->deactivate_recursive; # just to be sure
1633		2839
		2840	# random map handling
		2841	{
		2842	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2843
1634	prepare_random_map $exit	2844	prepare_random_map $exit
1635	if $exit->slaying eq "/!";	2845	if $exit->slaying eq "/!";
		2846	}
1636		2847
1637	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2848	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1638	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2849	my $x = $exit->stats->hp;
		2850	my $y = $exit->stats->sp;
1639		2851
		2852	$self->goto ($map, $x, $y);
		2853
		2854	# if exit is damned, update players death & WoR home-position
		2855	$self->contr->savebed ($map, $x, $y)
		2856	if $exit->flag (cf::FLAG_DAMNED);
		2857
1640	1;	2858	1
1641	}) {	2859	}) {
1642	$self->message ("Something went wrong deep within the crossfire server. "	2860	$self->message ("Something went wrong deep within the deliantra server. "
1643	. "I'll try to bring you back to the map you were before. "	2861	. "I'll try to bring you back to the map you were before. "
1644	. "Please report this to the dungeon master",	2862	. "Please report this to the dungeon master!",
1645	cf::NDI_UNIQUE | cf::NDI_RED);	2863	cf::NDI_UNIQUE | cf::NDI_RED);
1646		2864
1647	warn "ERROR in enter_exit: $@";	2865	error "ERROR in enter_exit: $@";
1648	$self->leave_link;	2866	$self->leave_link;
1649	}	2867	}
1650	})->prio (1);	2868	})->prio (1);
1651	}	2869	}
1652		2870
…		…
1663		2881
1664	sub cf::client::send_drawinfo {	2882	sub cf::client::send_drawinfo {
1665	my ($self, $text, $flags) = @_;	2883	my ($self, $text, $flags) = @_;
1666		2884
1667	utf8::encode $text;	2885	utf8::encode $text;
1668	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2886	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1669	}	2887	}
1670		2888
		2889	=item $client->send_big_packet ($pkt)
		2890
		2891	Like C<send_packet>, but tries to compress large packets, and fragments
		2892	them as required.
		2893
		2894	=cut
		2895
		2896	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2897
		2898	sub cf::client::send_big_packet {
		2899	my ($self, $pkt) = @_;
		2900
		2901	# try lzf for large packets
		2902	$pkt = "lzf " . Compress::LZF::compress $pkt
		2903	if 1024 <= length $pkt and $self->{can_lzf};
		2904
		2905	# split very large packets
		2906	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2907	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2908	$pkt = "frag";
		2909	}
		2910
		2911	$self->send_packet ($pkt);
		2912	}
		2913
		2914	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2915
		2916	Send a drawinfo or msg packet to the client, formatting the msg for the
		2917	client if neccessary. C<$type> should be a string identifying the type of
		2918	the message, with C<log> being the default. If C<$color> is negative, suppress
		2919	the message unless the client supports the msg packet.
		2920
		2921	=cut
		2922
		2923	# non-persistent channels (usually the info channel)
		2924	our %CHANNEL = (
		2925	"c/motd" => {
		2926	id => "infobox",
		2927	title => "MOTD",
		2928	reply => undef,
		2929	tooltip => "The message of the day",
		2930	},
		2931	"c/identify" => {
		2932	id => "infobox",
		2933	title => "Identify",
		2934	reply => undef,
		2935	tooltip => "Items recently identified",
		2936	},
		2937	"c/examine" => {
		2938	id => "infobox",
		2939	title => "Examine",
		2940	reply => undef,
		2941	tooltip => "Signs and other items you examined",
		2942	},
		2943	"c/shopinfo" => {
		2944	id => "infobox",
		2945	title => "Shop Info",
		2946	reply => undef,
		2947	tooltip => "What your bargaining skill tells you about the shop",
		2948	},
		2949	"c/book" => {
		2950	id => "infobox",
		2951	title => "Book",
		2952	reply => undef,
		2953	tooltip => "The contents of a note or book",
		2954	},
		2955	"c/lookat" => {
		2956	id => "infobox",
		2957	title => "Look",
		2958	reply => undef,
		2959	tooltip => "What you saw there",
		2960	},
		2961	"c/who" => {
		2962	id => "infobox",
		2963	title => "Players",
		2964	reply => undef,
		2965	tooltip => "Shows players who are currently online",
		2966	},
		2967	"c/body" => {
		2968	id => "infobox",
		2969	title => "Body Parts",
		2970	reply => undef,
		2971	tooltip => "Shows which body parts you posess and are available",
		2972	},
		2973	"c/statistics" => {
		2974	id => "infobox",
		2975	title => "Statistics",
		2976	reply => undef,
		2977	tooltip => "Shows your primary statistics",
		2978	},
		2979	"c/skills" => {
		2980	id => "infobox",
		2981	title => "Skills",
		2982	reply => undef,
		2983	tooltip => "Shows your experience per skill and item power",
		2984	},
		2985	"c/shopitems" => {
		2986	id => "infobox",
		2987	title => "Shop Items",
		2988	reply => undef,
		2989	tooltip => "Shows the items currently for sale in this shop",
		2990	},
		2991	"c/resistances" => {
		2992	id => "infobox",
		2993	title => "Resistances",
		2994	reply => undef,
		2995	tooltip => "Shows your resistances",
		2996	},
		2997	"c/pets" => {
		2998	id => "infobox",
		2999	title => "Pets",
		3000	reply => undef,
		3001	tooltip => "Shows information abotu your pets/a specific pet",
		3002	},
		3003	"c/perceiveself" => {
		3004	id => "infobox",
		3005	title => "Perceive Self",
		3006	reply => undef,
		3007	tooltip => "You gained detailed knowledge about yourself",
		3008	},
		3009	"c/uptime" => {
		3010	id => "infobox",
		3011	title => "Uptime",
		3012	reply => undef,
		3013	tooltip => "How long the server has been running since last restart",
		3014	},
		3015	"c/mapinfo" => {
		3016	id => "infobox",
		3017	title => "Map Info",
		3018	reply => undef,
		3019	tooltip => "Information related to the maps",
		3020	},
		3021	"c/party" => {
		3022	id => "party",
		3023	title => "Party",
		3024	reply => "gsay ",
		3025	tooltip => "Messages and chat related to your party",
		3026	},
		3027	"c/death" => {
		3028	id => "death",
		3029	title => "Death",
		3030	reply => undef,
		3031	tooltip => "Reason for and more info about your most recent death",
		3032	},
		3033	"c/say" => $SAY_CHANNEL,
		3034	"c/chat" => $CHAT_CHANNEL,
		3035	);
		3036
		3037	sub cf::client::send_msg {
		3038	my ($self, $channel, $msg, $color, @extra) = @_;
		3039
		3040	$msg = $self->pl->expand_cfpod ($msg)
		3041	unless $color & cf::NDI_VERBATIM;
		3042
		3043	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3044
		3045	# check predefined channels, for the benefit of C
		3046	if ($CHANNEL{$channel}) {
		3047	$channel = $CHANNEL{$channel};
		3048
		3049	$self->ext_msg (channel_info => $channel);
		3050	$channel = $channel->{id};
		3051
		3052	} elsif (ref $channel) {
		3053	# send meta info to client, if not yet sent
		3054	unless (exists $self->{channel}{$channel->{id}}) {
		3055	$self->{channel}{$channel->{id}} = $channel;
		3056	$self->ext_msg (channel_info => $channel);
		3057	}
		3058
		3059	$channel = $channel->{id};
		3060	}
		3061
		3062	return unless @extra || length $msg;
		3063
		3064	# default colour, mask it out
		3065	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3066	if $color & cf::NDI_DEF;
		3067
		3068	my $pkt = "msg "
		3069	. $self->{json_coder}->encode (
		3070	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3071	);
		3072
		3073	$self->send_big_packet ($pkt);
		3074	}
		3075
		3076	=item $client->ext_msg ($type, @msg)
		3077
		3078	Sends an ext event to the client.
		3079
		3080	=cut
		3081
		3082	sub cf::client::ext_msg($$@) {
		3083	my ($self, $type, @msg) = @_;
		3084
		3085	if ($self->extcmd == 2) {
		3086	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3087	} elsif ($self->extcmd == 1) { # TODO: remove
		3088	push @msg, msgtype => "event_$type";
		3089	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3090	}
		3091	}
		3092
		3093	=item $client->ext_reply ($msgid, @msg)
		3094
		3095	Sends an ext reply to the client.
		3096
		3097	=cut
		3098
		3099	sub cf::client::ext_reply($$@) {
		3100	my ($self, $id, @msg) = @_;
		3101
		3102	if ($self->extcmd == 2) {
		3103	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3104	} elsif ($self->extcmd == 1) {
		3105	#TODO: version 1, remove
		3106	unshift @msg, msgtype => "reply", msgid => $id;
		3107	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3108	}
		3109	}
1671		3110
1672	=item $success = $client->query ($flags, "text", \&cb)	3111	=item $success = $client->query ($flags, "text", \&cb)
1673		3112
1674	Queues a query to the client, calling the given callback with	3113	Queues a query to the client, calling the given callback with
1675	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3114	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1676	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3115	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1677		3116
1678	Queries can fail, so check the return code. Or don't, as queries will become	3117	Queries can fail, so check the return code. Or don't, as queries will
1679	reliable at some point in the future.	3118	become reliable at some point in the future.
1680		3119
1681	=cut	3120	=cut
1682		3121
1683	sub cf::client::query {	3122	sub cf::client::query {
1684	my ($self, $flags, $text, $cb) = @_;	3123	my ($self, $flags, $text, $cb) = @_;
…		…
1692	utf8::encode $text;	3131	utf8::encode $text;
1693	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3132	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1694		3133
1695	$self->send_packet ($self->{query_queue}[0][0])	3134	$self->send_packet ($self->{query_queue}[0][0])
1696	if @{ $self->{query_queue} } == 1;	3135	if @{ $self->{query_queue} } == 1;
		3136
		3137	1
1697	}	3138	}
1698		3139
1699	cf::client->attach (	3140	cf::client->attach (
		3141	on_connect => sub {
		3142	my ($ns) = @_;
		3143
		3144	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3145	},
1700	on_reply => sub {	3146	on_reply => sub {
1701	my ($ns, $msg) = @_;	3147	my ($ns, $msg) = @_;
1702		3148
1703	# this weird shuffling is so that direct followup queries	3149	# this weird shuffling is so that direct followup queries
1704	# get handled first	3150	# get handled first
1705	my $queue = delete $ns->{query_queue};	3151	my $queue = delete $ns->{query_queue}
		3152	or return; # be conservative, not sure how that can happen, but we saw a crash here
1706		3153
1707	(shift @$queue)->[1]->($msg);	3154	(shift @$queue)->[1]->($msg);
		3155	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1708		3156
1709	push @{ $ns->{query_queue} }, @$queue;	3157	push @{ $ns->{query_queue} }, @$queue;
1710		3158
1711	if (@{ $ns->{query_queue} } == @$queue) {	3159	if (@{ $ns->{query_queue} } == @$queue) {
1712	if (@$queue) {	3160	if (@$queue) {
…		…
1714	} else {	3162	} else {
1715	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3163	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1716	}	3164	}
1717	}	3165	}
1718	},	3166	},
		3167	on_exticmd => sub {
		3168	my ($ns, $buf) = @_;
		3169
		3170	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3171
		3172	if (ref $msg) {
		3173	my ($type, $reply, @payload) =
		3174	"ARRAY" eq ref $msg
		3175	? @$msg
		3176	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3177
		3178	my @reply;
		3179
		3180	if (my $cb = $EXTICMD{$type}) {
		3181	@reply = $cb->($ns, @payload);
		3182	}
		3183
		3184	$ns->ext_reply ($reply, @reply)
		3185	if $reply;
		3186
		3187	} else {
		3188	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3189	}
		3190
		3191	cf::override;
		3192	},
1719	);	3193	);
1720		3194
1721	=item $client->coro (\&cb)	3195	=item $client->async (\&cb)
1722		3196
1723	Create a new coroutine, running the specified callback. The coroutine will	3197	Create a new coroutine, running the specified callback. The coroutine will
1724	be automatically cancelled when the client gets destroyed (e.g. on logout,	3198	be automatically cancelled when the client gets destroyed (e.g. on logout,
1725	or loss of connection).	3199	or loss of connection).
1726		3200
1727	=cut	3201	=cut
1728		3202
1729	sub cf::client::coro {	3203	sub cf::client::async {
1730	my ($self, $cb) = @_;	3204	my ($self, $cb) = @_;
1731		3205
1732	my $coro; $coro = async {	3206	my $coro = &Coro::async ($cb);
1733	eval {
1734	$cb->();
1735	};
1736	warn $@ if $@;
1737	};
1738		3207
1739	$coro->on_destroy (sub {	3208	$coro->on_destroy (sub {
1740	delete $self->{_coro}{$coro+0};	3209	delete $self->{_coro}{$coro+0};
1741	});	3210	});
1742		3211
…		…
1744		3213
1745	$coro	3214	$coro
1746	}	3215	}
1747		3216
1748	cf::client->attach (	3217	cf::client->attach (
1749	on_destroy => sub {	3218	on_client_destroy => sub {
1750	my ($ns) = @_;	3219	my ($ns) = @_;
1751		3220
1752	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3221	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1753	},	3222	},
1754	);	3223	);
…		…
1769	our $safe = new Safe "safe";	3238	our $safe = new Safe "safe";
1770	our $safe_hole = new Safe::Hole;	3239	our $safe_hole = new Safe::Hole;
1771		3240
1772	$SIG{FPE} = 'IGNORE';	3241	$SIG{FPE} = 'IGNORE';
1773		3242
1774	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3243	$safe->permit_only (Opcode::opset qw(
		3244	:base_core :base_mem :base_orig :base_math :base_loop
		3245	grepstart grepwhile mapstart mapwhile
		3246	sort time
		3247	));
1775		3248
1776	# here we export the classes and methods available to script code	3249	# here we export the classes and methods available to script code
1777		3250
1778	=pod	3251	=pod
1779		3252
1780	The following fucntions and emthods are available within a safe environment:	3253	The following functions and methods are available within a safe environment:
1781		3254
1782	cf::object contr pay_amount pay_player map	3255	cf::object
		3256	contr pay_amount pay_player map x y force_find force_add destroy
		3257	insert remove name archname title slaying race decrease split
		3258	value
		3259
1783	cf::object::player player	3260	cf::object::player
1784	cf::player peaceful	3261	player
1785	cf::map trigger	3262
		3263	cf::player
		3264	peaceful
		3265
		3266	cf::map
		3267	trigger
1786		3268
1787	=cut	3269	=cut
1788		3270
1789	for (	3271	for (
1790	["cf::object" => qw(contr pay_amount pay_player map)],	3272	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3273	insert remove inv nrof name archname title slaying race
		3274	decrease split destroy change_exp value msg lore send_msg)],
1791	["cf::object::player" => qw(player)],	3275	["cf::object::player" => qw(player)],
1792	["cf::player" => qw(peaceful)],	3276	["cf::player" => qw(peaceful send_msg)],
1793	["cf::map" => qw(trigger)],	3277	["cf::map" => qw(trigger)],
1794	) {	3278	) {
1795	no strict 'refs';	3279	no strict 'refs';
1796	my ($pkg, @funs) = @$_;	3280	my ($pkg, @funs) = @$_;
1797	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3281	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1815		3299
1816	my $qcode = $code;	3300	my $qcode = $code;
1817	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3301	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1818	$qcode =~ s/\n/\\n/g;	3302	$qcode =~ s/\n/\\n/g;
1819		3303
		3304	%vars = (_dummy => 0) unless %vars;
		3305
		3306	my @res;
1820	local $_;	3307	local $_;
1821	local @safe::cf::_safe_eval_args = values %vars;
1822		3308
1823	my $eval =	3309	my $eval =
1824	"do {\n"	3310	"do {\n"
1825	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3311	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1826	. "#line 0 \"{$qcode}\"\n"	3312	. "#line 0 \"{$qcode}\"\n"
1827	. $code	3313	. $code
1828	. "\n}"	3314	. "\n}"
1829	;	3315	;
1830		3316
		3317	if ($CFG{safe_eval}) {
1831	sub_generation_inc;	3318	sub_generation_inc;
		3319	local @safe::cf::_safe_eval_args = values %vars;
1832	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3320	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1833	sub_generation_inc;	3321	sub_generation_inc;
		3322	} else {
		3323	local @cf::_safe_eval_args = values %vars;
		3324	@res = wantarray ? eval eval : scalar eval $eval;
		3325	}
1834		3326
1835	if ($@) {	3327	if ($@) {
1836	warn "$@";	3328	warn "$@",
1837	warn "while executing safe code '$code'\n";	3329	"while executing safe code '$code'\n",
1838	warn "with arguments " . (join " ", %vars) . "\n";	3330	"with arguments " . (join " ", %vars) . "\n";
1839	}	3331	}
1840		3332
1841	wantarray ? @res : $res[0]	3333	wantarray ? @res : $res[0]
1842	}	3334	}
1843		3335
…		…
1857	=cut	3349	=cut
1858		3350
1859	sub register_script_function {	3351	sub register_script_function {
1860	my ($fun, $cb) = @_;	3352	my ($fun, $cb) = @_;
1861		3353
1862	no strict 'refs';	3354	$fun = "safe::$fun" if $CFG{safe_eval};
1863	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3355	*$fun = $safe_hole->wrap ($cb);
1864	}	3356	}
1865		3357
1866	=back	3358	=back
1867		3359
1868	=cut	3360	=cut
1869		3361
1870	#############################################################################	3362	#############################################################################
		3363	# the server's init and main functions
1871		3364
1872	=head2 EXTENSION DATABASE SUPPORT	3365	sub load_facedata($) {
		3366	my ($path) = @_;
1873		3367
1874	Crossfire maintains a very simple database for extension use. It can	3368	# HACK to clear player env face cache, we need some signal framework
1875	currently store anything that can be serialised using Storable, which	3369	# for this (global event?)
1876	excludes objects.	3370	%ext::player_env::MUSIC_FACE_CACHE = ();
1877		3371
1878	The parameter C<$family> should best start with the name of the extension	3372	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1879	using it, it should be unique.
1880		3373
1881	=over 4	3374	trace "loading facedata from $path\n";
1882		3375
1883	=item $hashref = cf::db_get $family	3376	my $facedata;
		3377	0 < aio_load $path, $facedata
		3378	or die "$path: $!";
1884		3379
1885	Return a hashref for use by the extension C<$family>, which can be	3380	$facedata = Coro::Storable::thaw $facedata;
1886	modified. After modifications, you have to call C<cf::db_dirty> or
1887	C<cf::db_sync>.
1888		3381
1889	=item $value = cf::db_get $family => $key	3382	$facedata->{version} == 2
		3383	or cf::cleanup "$path: version mismatch, cannot proceed.";
1890		3384
1891	Returns a single value from the database	3385	# patch in the exptable
1892		3386	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1893	=item cf::db_put $family => $hashref	3387	$facedata->{resource}{"res/exp_table"} = {
1894		3388	type => FT_RSRC,
1895	Stores the given family hashref into the database. Updates are delayed, if	3389	data => $exp_table,
1896	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3390	hash => (Digest::MD5::md5 $exp_table),
1897
1898	=item cf::db_put $family => $key => $value
1899
1900	Stores the given C<$value> in the family hash. Updates are delayed, if you
1901	want the data to be synced to disk immediately, use C<cf::db_sync>.
1902
1903	=item cf::db_dirty
1904
1905	Marks the database as dirty, to be updated at a later time.
1906
1907	=item cf::db_sync
1908
1909	Immediately write the database to disk I<if it is dirty>.
1910
1911	=cut
1912
1913	our $DB;
1914
1915	{
1916	my $path = cf::localdir . "/database.pst";
1917
1918	sub db_load() {
1919	warn "loading database $path\n";#d# remove later
1920	$DB = stat $path ? Storable::retrieve $path : { };
1921	}
1922
1923	my $pid;
1924
1925	sub db_save() {
1926	warn "saving database $path\n";#d# remove later
1927	waitpid $pid, 0 if $pid;
1928	if (0 == ($pid = fork)) {
1929	$DB->{_meta}{version} = 1;
1930	Storable::nstore $DB, "$path~";
1931	rename "$path~", $path;
1932	cf::_exit 0 if defined $pid;
1933	}
1934	}
1935
1936	my $dirty;
1937
1938	sub db_sync() {
1939	db_save if $dirty;
1940	undef $dirty;
1941	}
1942
1943	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1944	db_sync;
1945	});	3391	};
		3392	cf::cede_to_tick;
1946		3393
1947	sub db_dirty() {
1948	$dirty = 1;
1949	$idle->start;
1950	}	3394	{
		3395	my $faces = $facedata->{faceinfo};
1951		3396
1952	sub db_get($;$) {	3397	while (my ($face, $info) = each %$faces) {
1953	@_ >= 2	3398	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1954	? $DB->{$_[0]}{$_[1]}
1955	: ($DB->{$_[0]} ||= { })
1956	}
1957		3399
1958	sub db_put($$;$) {	3400	cf::face::set_visibility $idx, $info->{visibility};
1959	if (@_ >= 3) {	3401	cf::face::set_magicmap $idx, $info->{magicmap};
1960	$DB->{$_[0]}{$_[1]} = $_[2];	3402	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1961	} else {	3403	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1962	$DB->{$_[0]} = $_[1];
1963	}
1964	db_dirty;
1965	}
1966		3404
1967	cf::global->attach (	3405	cf::cede_to_tick;
1968	prio => 10000,
1969	on_cleanup => sub {
1970	db_sync;
1971	},	3406	}
1972	);
1973	}
1974		3407
1975	#############################################################################	3408	while (my ($face, $info) = each %$faces) {
1976	# the server's main()	3409	next unless $info->{smooth};
1977		3410
1978	sub cfg_load {	3411	my $idx = cf::face::find $face
		3412	or next;
		3413
		3414	if (my $smooth = cf::face::find $info->{smooth}) {
		3415	cf::face::set_smooth $idx, $smooth;
		3416	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3417	} else {
		3418	error "smooth face '$info->{smooth}' not found for face '$face'";
		3419	}
		3420
		3421	cf::cede_to_tick;
		3422	}
		3423	}
		3424
		3425	{
		3426	my $anims = $facedata->{animinfo};
		3427
		3428	while (my ($anim, $info) = each %$anims) {
		3429	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3430	cf::cede_to_tick;
		3431	}
		3432
		3433	cf::anim::invalidate_all; # d'oh
		3434	}
		3435
		3436	{
		3437	my $res = $facedata->{resource};
		3438
		3439	while (my ($name, $info) = each %$res) {
		3440	if (defined $info->{type}) {
		3441	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3442
		3443	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3444	cf::face::set_type $idx, $info->{type};
		3445	} else {
		3446	$RESOURCE{$name} = $info; # unused
		3447	}
		3448
		3449	cf::cede_to_tick;
		3450	}
		3451	}
		3452
		3453	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3454
		3455	1
		3456	}
		3457
		3458	register_exticmd fx_want => sub {
		3459	my ($ns, $want) = @_;
		3460
		3461	while (my ($k, $v) = each %$want) {
		3462	$ns->fx_want ($k, $v);
		3463	}
		3464	};
		3465
		3466	sub load_resource_file($) {
		3467	my $guard = lock_acquire "load_resource_file";
		3468
		3469	my $status = load_resource_file_ $_[0];
		3470	get_slot 0.1, 100;
		3471	cf::arch::commit_load;
		3472
		3473	$status
		3474	}
		3475
		3476	sub reload_regions {
		3477	# HACK to clear player env face cache, we need some signal framework
		3478	# for this (global event?)
		3479	%ext::player_env::MUSIC_FACE_CACHE = ();
		3480
		3481	load_resource_file "$MAPDIR/regions"
		3482	or die "unable to load regions file\n";
		3483
		3484	for (cf::region::list) {
		3485	$_->{match} = qr/$_->{match}/
		3486	if exists $_->{match};
		3487	}
		3488	}
		3489
		3490	sub reload_facedata {
		3491	load_facedata "$DATADIR/facedata"
		3492	or die "unable to load facedata\n";
		3493	}
		3494
		3495	sub reload_archetypes {
		3496	load_resource_file "$DATADIR/archetypes"
		3497	or die "unable to load archetypes\n";
		3498	}
		3499
		3500	sub reload_treasures {
		3501	load_resource_file "$DATADIR/treasures"
		3502	or die "unable to load treasurelists\n";
		3503	}
		3504
		3505	sub reload_sound {
		3506	trace "loading sound config from $DATADIR/sound\n";
		3507
		3508	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3509	or die "$DATADIR/sound $!";
		3510
		3511	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3512
		3513	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3514	my $sound = $soundconf->{compat}[$_]
		3515	or next;
		3516
		3517	my $face = cf::face::find "sound/$sound->[1]";
		3518	cf::sound::set $sound->[0] => $face;
		3519	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3520	}
		3521
		3522	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3523	my $face = cf::face::find "sound/$v";
		3524	cf::sound::set $k => $face;
		3525	}
		3526	}
		3527
		3528	sub reload_resources {
		3529	trace "reloading resource files...\n";
		3530
		3531	reload_facedata;
		3532	reload_sound;
		3533	reload_archetypes;
		3534	reload_regions;
		3535	reload_treasures;
		3536
		3537	trace "finished reloading resource files\n";
		3538	}
		3539
		3540	sub reload_config {
		3541	trace "reloading config file...\n";
		3542
1979	open my $fh, "<:utf8", cf::confdir . "/config"	3543	open my $fh, "<:utf8", "$CONFDIR/config"
1980	or return;	3544	or return;
1981		3545
1982	local $/;	3546	local $/;
1983	*CFG = YAML::Syck::Load <$fh>;	3547	*CFG = YAML::XS::Load scalar <$fh>;
		3548
		3549	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3550
		3551	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3552	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3553
		3554	if (exists $CFG{mlockall}) {
		3555	eval {
		3556	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3557	and die "WARNING: m(un)lockall failed: $!\n";
		3558	};
		3559	warn $@ if $@;
		3560	}
		3561
		3562	trace "finished reloading resource files\n";
		3563	}
		3564
		3565	sub pidfile() {
		3566	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3567	or die "$PIDFILE: $!";
		3568	flock $fh, &Fcntl::LOCK_EX
		3569	or die "$PIDFILE: flock: $!";
		3570	$fh
		3571	}
		3572
		3573	# make sure only one server instance is running at any one time
		3574	sub atomic {
		3575	my $fh = pidfile;
		3576
		3577	my $pid = <$fh>;
		3578	kill 9, $pid if $pid > 0;
		3579
		3580	seek $fh, 0, 0;
		3581	print $fh $$;
		3582	}
		3583
		3584	sub main_loop {
		3585	trace "EV::loop starting\n";
		3586	if (1) {
		3587	EV::loop;
		3588	}
		3589	trace "EV::loop returned\n";
		3590	goto &main_loop unless $REALLY_UNLOOP;
1984	}	3591	}
1985		3592
1986	sub main {	3593	sub main {
		3594	cf::init_globals; # initialise logging
		3595
		3596	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3597	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3598	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3599	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3600
		3601	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3602
1987	# we must not ever block the main coroutine	3603	# we must not ever block the main coroutine
1988	local $Coro::idle = sub {	3604	local $Coro::idle = sub {
1989	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3605	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1990	(Coro::unblock_sub {	3606	(async {
1991	Event::one_event;	3607	$Coro::current->{desc} = "IDLE BUG HANDLER";
1992	})->();	3608	EV::loop EV::LOOP_ONESHOT;
		3609	})->prio (Coro::PRIO_MAX);
1993	};	3610	};
1994		3611
1995	cfg_load;	3612	evthread_start IO::AIO::poll_fileno;
1996	db_load;	3613
		3614	cf::sync_job {
		3615	cf::init_experience;
		3616	cf::init_anim;
		3617	cf::init_attackmess;
		3618	cf::init_dynamic;
		3619
		3620	cf::load_settings;
		3621	cf::load_materials;
		3622
		3623	reload_resources;
		3624	reload_config;
		3625	db_init;
		3626
		3627	cf::init_uuid;
		3628	cf::init_signals;
		3629	cf::init_skills;
		3630
		3631	cf::init_beforeplay;
		3632
		3633	atomic;
		3634
1997	load_extensions;	3635	load_extensions;
1998	Event::loop;	3636
		3637	utime time, time, $RUNTIMEFILE;
		3638
		3639	# no (long-running) fork's whatsoever before this point(!)
		3640	use POSIX ();
		3641	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3642
		3643	(pop @POST_INIT)->(0) while @POST_INIT;
		3644	};
		3645
		3646	cf::object::thawer::errors_are_fatal 0;
		3647	info "parse errors in files are no longer fatal from this point on.\n";
		3648
		3649	main_loop;
1999	}	3650	}
2000		3651
2001	#############################################################################	3652	#############################################################################
2002	# initialisation	3653	# initialisation and cleanup
2003		3654
		3655	# install some emergency cleanup handlers
		3656	BEGIN {
		3657	our %SIGWATCHER = ();
		3658	for my $signal (qw(INT HUP TERM)) {
		3659	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3660	cf::cleanup "SIG$signal";
		3661	};
		3662	}
		3663	}
		3664
		3665	sub write_runtime_sync {
		3666	my $t0 = AE::time;
		3667
		3668	# first touch the runtime file to show we are still running:
		3669	# the fsync below can take a very very long time.
		3670
		3671	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3672
		3673	my $guard = cf::lock_acquire "write_runtime";
		3674
		3675	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3676	or return;
		3677
		3678	my $value = $cf::RUNTIME + 90 + 10;
		3679	# 10 is the runtime save interval, for a monotonic clock
		3680	# 60 allows for the watchdog to kill the server.
		3681
		3682	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3683	and return;
		3684
		3685	# always fsync - this file is important
		3686	aio_fsync $fh
		3687	and return;
		3688
		3689	# touch it again to show we are up-to-date
		3690	aio_utime $fh, undef, undef;
		3691
		3692	close $fh
		3693	or return;
		3694
		3695	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3696	and return;
		3697
		3698	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3699
		3700	1
		3701	}
		3702
		3703	our $uuid_lock;
		3704	our $uuid_skip;
		3705
		3706	sub write_uuid_sync($) {
		3707	$uuid_skip ||= $_[0];
		3708
		3709	return if $uuid_lock;
		3710	local $uuid_lock = 1;
		3711
		3712	my $uuid = "$LOCALDIR/uuid";
		3713
		3714	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3715	or return;
		3716
		3717	my $value = uuid_seq uuid_cur;
		3718
		3719	unless ($value) {
		3720	info "cowardly refusing to write zero uuid value!\n";
		3721	return;
		3722	}
		3723
		3724	my $value = uuid_str $value + $uuid_skip;
		3725	$uuid_skip = 0;
		3726
		3727	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3728	and return;
		3729
		3730	# always fsync - this file is important
		3731	aio_fsync $fh
		3732	and return;
		3733
		3734	close $fh
		3735	or return;
		3736
		3737	aio_rename "$uuid~", $uuid
		3738	and return;
		3739
		3740	trace "uuid file written ($value).\n";
		3741
		3742	1
		3743
		3744	}
		3745
		3746	sub write_uuid($$) {
		3747	my ($skip, $sync) = @_;
		3748
		3749	$sync ? write_uuid_sync $skip
		3750	: async { write_uuid_sync $skip };
		3751	}
		3752
		3753	sub emergency_save() {
		3754	my $freeze_guard = cf::freeze_mainloop;
		3755
		3756	info "emergency_perl_save: enter\n";
		3757
		3758	# this is a trade-off: we want to be very quick here, so
		3759	# save all maps without fsync, and later call a global sync
		3760	# (which in turn might be very very slow)
		3761	local $USE_FSYNC = 0;
		3762
		3763	cf::sync_job {
		3764	cf::write_runtime_sync; # external watchdog should not bark
		3765
		3766	# use a peculiar iteration method to avoid tripping on perl
		3767	# refcount bugs in for. also avoids problems with players
		3768	# and maps saved/destroyed asynchronously.
		3769	info "emergency_perl_save: begin player save\n";
		3770	for my $login (keys %cf::PLAYER) {
		3771	my $pl = $cf::PLAYER{$login} or next;
		3772	$pl->valid or next;
		3773	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3774	$pl->save;
		3775	}
		3776	info "emergency_perl_save: end player save\n";
		3777
		3778	cf::write_runtime_sync; # external watchdog should not bark
		3779
		3780	info "emergency_perl_save: begin map save\n";
		3781	for my $path (keys %cf::MAP) {
		3782	my $map = $cf::MAP{$path} or next;
		3783	$map->valid or next;
		3784	$map->save;
		3785	}
		3786	info "emergency_perl_save: end map save\n";
		3787
		3788	cf::write_runtime_sync; # external watchdog should not bark
		3789
		3790	info "emergency_perl_save: begin database checkpoint\n";
		3791	BDB::db_env_txn_checkpoint $DB_ENV;
		3792	info "emergency_perl_save: end database checkpoint\n";
		3793
		3794	info "emergency_perl_save: begin write uuid\n";
		3795	write_uuid_sync 1;
		3796	info "emergency_perl_save: end write uuid\n";
		3797
		3798	cf::write_runtime_sync; # external watchdog should not bark
		3799
		3800	trace "emergency_perl_save: syncing database to disk";
		3801	BDB::db_env_txn_checkpoint $DB_ENV;
		3802
		3803	info "emergency_perl_save: starting sync\n";
		3804	IO::AIO::aio_sync sub {
		3805	info "emergency_perl_save: finished sync\n";
		3806	};
		3807
		3808	cf::write_runtime_sync; # external watchdog should not bark
		3809
		3810	trace "emergency_perl_save: flushing outstanding aio requests";
		3811	while (IO::AIO::nreqs || BDB::nreqs) {
		3812	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3813	}
		3814
		3815	cf::write_runtime_sync; # external watchdog should not bark
		3816	};
		3817
		3818	info "emergency_perl_save: leave\n";
		3819	}
		3820
		3821	sub post_cleanup {
		3822	my ($make_core) = @_;
		3823
		3824	IO::AIO::flush;
		3825
		3826	error Carp::longmess "post_cleanup backtrace"
		3827	if $make_core;
		3828
		3829	my $fh = pidfile;
		3830	unlink $PIDFILE if <$fh> == $$;
		3831	}
		3832
		3833	# a safer delete_package, copied from Symbol
		3834	sub clear_package($) {
		3835	my $pkg = shift;
		3836
		3837	# expand to full symbol table name if needed
		3838	unless ($pkg =~ /^main::.*::$/) {
		3839	$pkg = "main$pkg" if $pkg =~ /^::/;
		3840	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3841	$pkg .= '::' unless $pkg =~ /::$/;
		3842	}
		3843
		3844	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3845	my $stem_symtab = *{$stem}{HASH};
		3846
		3847	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3848	or return;
		3849
		3850	# clear all symbols
		3851	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3852	for my $name (keys %$leaf_symtab) {
		3853	_gv_clear *{"$pkg$name"};
		3854	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3855	}
		3856	}
		3857
2004	sub reload() {	3858	sub do_reload_perl() {
2005	# can/must only be called in main	3859	# can/must only be called in main
2006	if ($Coro::current != $Coro::main) {	3860	if (in_main) {
2007	warn "can only reload from main coroutine\n";	3861	error "can only reload from main coroutine";
2008	return;	3862	return;
2009	}	3863	}
2010		3864
		3865	return if $RELOAD++;
		3866
		3867	my $t1 = AE::time;
		3868
		3869	while ($RELOAD) {
2011	warn "reloading...";	3870	info "reloading...";
2012		3871
2013	local $FREEZE = 1;	3872	trace "entering sync_job";
		3873
		3874	cf::sync_job {
2014	cf::emergency_save;	3875	cf::emergency_save;
2015		3876
2016	eval {
2017	# if anything goes wrong in here, we should simply crash as we already saved
2018
2019	# cancel all watchers
2020	for (Event::all_watchers) {
2021	$_->cancel if $_->data & WF_AUTOCANCEL;
2022	}
2023
2024	# cancel all extension coros	3877	trace "cancelling all extension coros";
2025	$_->cancel for values %EXT_CORO;	3878	$_->cancel for values %EXT_CORO;
2026	%EXT_CORO = ();	3879	%EXT_CORO = ();
2027		3880
2028	# unload all extensions	3881	trace "removing commands";
2029	for (@exts) {	3882	%COMMAND = ();
2030	warn "unloading <$_>";
2031	unload_extension $_;
2032	}
2033		3883
2034	# unload all modules loaded from $LIBDIR	3884	trace "removing ext/exti commands";
2035	while (my ($k, $v) = each %INC) {	3885	%EXTCMD = ();
2036	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3886	%EXTICMD = ();
2037		3887
2038	warn "removing <$k>";	3888	trace "unloading/nuking all extensions";
2039	delete $INC{$k};	3889	for my $pkg (@EXTS) {
		3890	trace "... unloading $pkg";
2040		3891
2041	$k =~ s/\.pm$//;
2042	$k =~ s/\//::/g;
2043
2044	if (my $cb = $k->can ("unload_module")) {	3892	if (my $cb = $pkg->can ("unload")) {
		3893	eval {
2045	$cb->();	3894	$cb->($pkg);
		3895	1
		3896	} or error "$pkg unloaded, but with errors: $@";
		3897	}
		3898
		3899	trace "... clearing $pkg";
		3900	clear_package $pkg;
2046	}	3901	}
2047		3902
2048	Symbol::delete_package $k;	3903	trace "unloading all perl modules loaded from $LIBDIR";
		3904	while (my ($k, $v) = each %INC) {
		3905	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3906
		3907	trace "... unloading $k";
		3908	delete $INC{$k};
		3909
		3910	$k =~ s/\.pm$//;
		3911	$k =~ s/\//::/g;
		3912
		3913	if (my $cb = $k->can ("unload_module")) {
		3914	$cb->();
		3915	}
		3916
		3917	clear_package $k;
2049	}	3918	}
2050		3919
2051	# sync database to disk
2052	cf::db_sync;
2053	IO::AIO::flush;
2054
2055	# get rid of safe::, as good as possible	3920	trace "getting rid of safe::, as good as possible";
2056	Symbol::delete_package "safe::$_"	3921	clear_package "safe::$_"
2057	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3922	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2058		3923
2059	# remove register_script_function callbacks	3924	trace "unloading cf.pm \"a bit\"";
2060	# TODO
2061
2062	# unload cf.pm "a bit"
2063	delete $INC{"cf.pm"};	3925	delete $INC{"cf.pm"};
		3926	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2064		3927
2065	# don't, removes xs symbols, too,	3928	# don't, removes xs symbols, too,
2066	# and global variables created in xs	3929	# and global variables created in xs
2067	#Symbol::delete_package __PACKAGE__;	3930	#clear_package __PACKAGE__;
2068		3931
2069	# reload cf.pm	3932	info "unload completed, starting to reload now";
		3933
2070	warn "reloading cf.pm";	3934	trace "reloading cf.pm";
2071	require cf;	3935	require cf;
2072	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3936	cf::_connect_to_perl_1;
2073		3937
2074	# load config and database again	3938	trace "loading config and database again";
2075	cf::cfg_load;	3939	cf::reload_config;
2076	cf::db_load;
2077		3940
2078	# load extensions
2079	warn "load extensions";	3941	trace "loading extensions";
2080	cf::load_extensions;	3942	cf::load_extensions;
2081		3943
2082	# reattach attachments to objects	3944	if ($REATTACH_ON_RELOAD) {
2083	warn "reattach";	3945	trace "reattaching attachments to objects/players";
2084	_global_reattach;	3946	_global_reattach; # objects, sockets
		3947	trace "reattaching attachments to maps";
		3948	reattach $_ for values %MAP;
		3949	trace "reattaching attachments to players";
		3950	reattach $_ for values %PLAYER;
		3951	}
		3952
		3953	trace "running post_init jobs";
		3954	(pop @POST_INIT)->(1) while @POST_INIT;
		3955
		3956	trace "leaving sync_job";
		3957
		3958	1
		3959	} or do {
		3960	error $@;
		3961	cf::cleanup "error while reloading, exiting.";
		3962	};
		3963
		3964	info "reloaded";
		3965	--$RELOAD;
		3966	}
		3967
		3968	$t1 = AE::time - $t1;
		3969	info "reload completed in ${t1}s\n";
		3970	};
		3971
		3972	our $RELOAD_WATCHER; # used only during reload
		3973
		3974	sub reload_perl() {
		3975	# doing reload synchronously and two reloads happen back-to-back,
		3976	# coro crashes during coro_state_free->destroy here.
		3977
		3978	$RELOAD_WATCHER ||= cf::async {
		3979	Coro::AIO::aio_wait cache_extensions;
		3980
		3981	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3982	do_reload_perl;
		3983	undef $RELOAD_WATCHER;
		3984	};
2085	};	3985	};
2086
2087	if ($@) {
2088	warn $@;
2089	warn "error while reloading, exiting.";
2090	exit 1;
2091	}
2092
2093	warn "reloaded successfully";
2094	};
2095
2096	#############################################################################
2097
2098	unless ($LINK_MAP) {
2099	$LINK_MAP = cf::map::new;
2100
2101	$LINK_MAP->width (41);
2102	$LINK_MAP->height (41);
2103	$LINK_MAP->alloc;
2104	$LINK_MAP->path ("{link}");
2105	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2106	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2107
2108	# dirty hack because... archetypes are not yet loaded
2109	Event->timer (
2110	after => 2,
2111	cb => sub {
2112	$_[0]->w->cancel;
2113
2114	# provide some exits "home"
2115	my $exit = cf::object::new "exit";
2116
2117	$exit->slaying ($EMERGENCY_POSITION->[0]);
2118	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2119	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2120
2121	$LINK_MAP->insert ($exit->clone, 19, 19);
2122	$LINK_MAP->insert ($exit->clone, 19, 20);
2123	$LINK_MAP->insert ($exit->clone, 19, 21);
2124	$LINK_MAP->insert ($exit->clone, 20, 19);
2125	$LINK_MAP->insert ($exit->clone, 20, 21);
2126	$LINK_MAP->insert ($exit->clone, 21, 19);
2127	$LINK_MAP->insert ($exit->clone, 21, 20);
2128	$LINK_MAP->insert ($exit->clone, 21, 21);
2129
2130	$exit->destroy;
2131	});
2132
2133	$LINK_MAP->{deny_save} = 1;
2134	$LINK_MAP->{deny_reset} = 1;
2135
2136	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2137	}	3986	}
2138
2139	register "<global>", __PACKAGE__;
2140		3987
2141	register_command "reload" => sub {	3988	register_command "reload" => sub {
2142	my ($who, $arg) = @_;	3989	my ($who, $arg) = @_;
2143		3990
2144	if ($who->flag (FLAG_WIZ)) {	3991	if ($who->flag (FLAG_WIZ)) {
2145	$who->message ("start of reload.");
2146	reload;
2147	$who->message ("end of reload.");	3992	$who->message ("reloading server.");
		3993	async {
		3994	$Coro::current->{desc} = "perl_reload";
		3995	reload_perl;
		3996	};
2148	}	3997	}
2149	};	3998	};
2150		3999
2151	unshift @INC, $LIBDIR;	4000	unshift @INC, $LIBDIR;
2152		4001
2153	$TICK_WATCHER = Event->timer (	4002	my $bug_warning = 0;
2154	reentrant => 0,	4003
2155	prio => 0,	4004	our @WAIT_FOR_TICK;
2156	at => $NEXT_TICK || $TICK,	4005	our @WAIT_FOR_TICK_BEGIN;
2157	data => WF_AUTOCANCEL,	4006
2158	cb => sub {	4007	sub wait_for_tick {
2159	unless ($FREEZE) {	4008	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4009
		4010	my $signal = new Coro::Signal;
		4011	push @WAIT_FOR_TICK, $signal;
		4012	$signal->wait;
		4013	}
		4014
		4015	sub wait_for_tick_begin {
		4016	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4017
		4018	my $signal = new Coro::Signal;
		4019	push @WAIT_FOR_TICK_BEGIN, $signal;
		4020	$signal->wait;
		4021	}
		4022
		4023	sub tick {
		4024	if ($Coro::current != $Coro::main) {
		4025	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4026	unless ++$bug_warning > 10;
		4027	return;
		4028	}
		4029
2160	cf::server_tick; # one server iteration	4030	cf::server_tick; # one server iteration
2161	$RUNTIME += $TICK;
2162	}
2163		4031
2164	$NEXT_TICK += $TICK;	4032	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2165		4033
2166	# if we are delayed by four ticks or more, skip them all	4034	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2167	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4035	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2168		4036	Coro::async_pool {
2169	$TICK_WATCHER->at ($NEXT_TICK);	4037	$Coro::current->{desc} = "runtime saver";
2170	$TICK_WATCHER->start;
2171	},
2172	);
2173
2174	IO::AIO::max_poll_time $TICK * 0.2;
2175
2176	Event->io (
2177	fd => IO::AIO::poll_fileno,
2178	poll => 'r',
2179	prio => 5,
2180	data => WF_AUTOCANCEL,
2181	cb => \&IO::AIO::poll_cb,
2182	);
2183
2184	Event->timer (
2185	data => WF_AUTOCANCEL,
2186	after => 0,
2187	interval => 10,
2188	cb => sub {
2189	(Coro::unblock_sub {
2190	write_runtime	4038	write_runtime_sync
2191	or warn "ERROR: unable to write runtime file: $!";	4039	or error "ERROR: unable to write runtime file: $!";
2192	})->();	4040	};
2193	},	4041	}
2194	);	4042
		4043	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4044	$sig->send;
		4045	}
		4046	while (my $sig = shift @WAIT_FOR_TICK) {
		4047	$sig->send;
		4048	}
		4049
		4050	$LOAD = ($NOW - $TICK_START) / $TICK;
		4051	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4052
		4053	if (0) {
		4054	if ($NEXT_TICK) {
		4055	my $jitter = $TICK_START - $NEXT_TICK;
		4056	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4057	debug "jitter $JITTER\n";#d#
		4058	}
		4059	}
		4060	}
		4061
		4062	{
		4063	# configure BDB
		4064
		4065	BDB::min_parallel 16;
		4066	BDB::max_poll_reqs $TICK * 0.1;
		4067	$AnyEvent::BDB::WATCHER->priority (1);
		4068
		4069	unless ($DB_ENV) {
		4070	$DB_ENV = BDB::db_env_create;
		4071	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4072	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4073	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4074	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4075	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4076
		4077	cf::sync_job {
		4078	eval {
		4079	BDB::db_env_open
		4080	$DB_ENV,
		4081	$BDBDIR,
		4082	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4083	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4084	0666;
		4085
		4086	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4087	};
		4088
		4089	cf::cleanup "db_env_open(db): $@" if $@;
		4090	};
		4091	}
		4092
		4093	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4094	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4095	};
		4096	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4097	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4098	};
		4099	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4100	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4101	};
		4102	}
		4103
		4104	{
		4105	# configure IO::AIO
		4106
		4107	IO::AIO::min_parallel 8;
		4108	IO::AIO::max_poll_time $TICK * 0.1;
		4109	undef $AnyEvent::AIO::WATCHER;
		4110	}
		4111
		4112	my $_log_backtrace;
		4113
		4114	sub _log_backtrace {
		4115	my ($msg, @addr) = @_;
		4116
		4117	$msg =~ s/\n//;
		4118
		4119	# limit the # of concurrent backtraces
		4120	if ($_log_backtrace < 2) {
		4121	++$_log_backtrace;
		4122	my $perl_bt = Carp::longmess $msg;
		4123	async {
		4124	$Coro::current->{desc} = "abt $msg";
		4125
		4126	my @bt = fork_call {
		4127	@addr = map { sprintf "%x", $_ } @addr;
		4128	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4129	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4130	or die "addr2line: $!";
		4131
		4132	my @funcs;
		4133	my @res = <$fh>;
		4134	chomp for @res;
		4135	while (@res) {
		4136	my ($func, $line) = splice @res, 0, 2, ();
		4137	push @funcs, "[$func] $line";
		4138	}
		4139
		4140	@funcs
		4141	};
		4142
		4143	LOG llevInfo, "[ABT] $perl_bt\n";
		4144	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4145	LOG llevInfo, "[ABT] $_\n" for @bt;
		4146	--$_log_backtrace;
		4147	};
		4148	} else {
		4149	LOG llevInfo, "[ABT] $msg\n";
		4150	LOG llevInfo, "[ABT] [suppressed]\n";
		4151	}
		4152	}
		4153
		4154	# load additional modules
		4155	require "cf/$_.pm" for @EXTRA_MODULES;
		4156	cf::_connect_to_perl_2;
		4157
		4158	END { cf::emergency_save }
2195		4159
2196	1	4160	1
2197		4161

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