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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.126 by root, Tue Jan 2 23:12:47 2007 UTC vs.
Revision 1.547 by root, Sun May 9 22:51:13 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
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3;	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
20	use Digest::MD5;	53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
21	use Fcntl;	56	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
24	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
25		62
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		69
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		78
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98	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 incloader);
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 thread
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=cut
		242
		243	sub wait_for_tick();
		244	sub wait_for_tick_begin();
		245
		246	=item @cf::INVOKE_RESULTS
		247
		248	This array contains the results of the last C<invoke ()> call. When
		249	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		250	that call.
		251
		252	=item %cf::REFLECT
		253
		254	Contains, for each (C++) class name, a hash reference with information
		255	about object members (methods, scalars, arrays and flags) and other
		256	metadata, which is useful for introspection.
		257
112	=back	258	=back
113		259
114	=cut	260	=cut
115		261
116	BEGIN {	262	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	263	sub warn (@) { LOG llevWarn , join "", @_ }
		264	sub info (@) { LOG llevInfo , join "", @_ }
		265	sub debug(@) { LOG llevDebug, join "", @_ }
		266	sub trace(@) { LOG llevTrace, join "", @_ }
		267
		268	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	269	my $msg = join "", @_;
119	utf8::encode $msg;
120		270
121	$msg .= "\n"	271	$msg .= "\n"
122	unless $msg =~ /\n$/;	272	unless $msg =~ /\n$/;
123		273
124	LOG llevError, "cfperl: $msg";	274	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	275
126	}	276	LOG llevWarn, $msg;
		277	};
		278
		279	$Coro::State::DIEHOOK = sub {
		280	return unless $^S eq 0; # "eq", not "=="
		281
		282	error Carp::longmess $_[0];
		283
		284	if (in_main) {#d#
		285	error "DIEHOOK called in main context, Coro bug?\n";#d#
		286	return;#d#
		287	}#d#
		288
		289	# kill coroutine otherwise
		290	Coro::terminate
		291	};
127		292
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	293	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	294	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	295	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	296	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	297	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		298	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	299	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		300
135	# we bless all objects into (empty) derived classes to force a method lookup	301	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	302	# within the Safe compartment.
137	for my $pkg (qw(	303	for my $pkg (qw(
138	cf::global cf::attachable	304	cf::global cf::attachable
139	cf::object cf::object::player	305	cf::object cf::object::player
140	cf::client cf::player	306	cf::client cf::player
141	cf::arch cf::living	307	cf::arch cf::living
		308	cf::map cf::mapspace
142	cf::map cf::party cf::region	309	cf::party cf::region
143	)) {	310	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	311	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	312	}
147		313
148	$Event::DIED = sub {	314	$EV::DIED = sub {
149	warn "error in event callback: @_";	315	Carp::cluck "error in event callback: @_";
150	};	316	};
151		317
152	my %ext_pkg;	318	#############################################################################
153	my @exts;
154	my @hook;
155		319
156	=head2 UTILITY FUNCTIONS	320	=head2 UTILITY FUNCTIONS
157		321
158	=over 4	322	=over 4
159		323
160	=cut	324	=item dumpval $ref
161		325
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	326	=cut
163		327
		328	sub dumpval {
		329	eval {
		330	local $SIG{__DIE__};
		331	my $d;
		332	if (1) {
		333	$d = new Data::Dumper([$_[0]], ["*var"]);
		334	$d->Terse(1);
		335	$d->Indent(2);
		336	$d->Quotekeys(0);
		337	$d->Useqq(1);
		338	#$d->Bless(...);
		339	$d->Seen($_[1]) if @_ > 1;
		340	$d = $d->Dump();
		341	}
		342	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		343	$d
		344	} || "[unable to dump $_[0]: '$@']";
		345	}
		346
164	=item $ref = cf::from_json $json	347	=item $ref = cf::decode_json $json
165		348
166	Converts a JSON string into the corresponding perl data structure.	349	Converts a JSON string into the corresponding perl data structure.
167		350
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	351	=item $json = cf::encode_json $ref
176		352
177	Converts a perl data structure into its JSON representation.	353	Converts a perl data structure into its JSON representation.
178		354
179	=cut	355	=cut
180		356
181	sub to_json($) {	357	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		358
186	=item my $guard = cf::guard { BLOCK }	359	sub encode_json($) { $json_coder->encode ($_[0]) }
		360	sub decode_json($) { $json_coder->decode ($_[0]) }
187		361
188	Run the given callback when the guard object gets destroyed (useful for	362	=item cf::post_init { BLOCK }
189	coroutine cancellations).
190		363
191	You can call C<< ->cancel >> on the guard object to stop the block from	364	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
192	being executed.	365	but I<before> the server starts ticking again.
193		366
194	=cut	367	The cdoeblock will have a single boolean argument to indicate whether this
		368	is a reload or not.
195		369
196	sub guard(&) {	370	=cut
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199		371
200	sub cf::guard::cancel {	372	sub post_init(&) {
201	${$_[0]} = sub { };	373	push @POST_INIT, shift;
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}	374	}
207		375
208	=item cf::lock_wait $string	376	=item cf::lock_wait $string
209		377
210	Wait until the given lock is available. See cf::lock_acquire.	378	Wait until the given lock is available. See cf::lock_acquire.
211		379
212	=item my $lock = cf::lock_acquire $string	380	=item my $lock = cf::lock_acquire $string
213		381
214	Wait until the given lock is available and then acquires it and returns	382	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,	383	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	384	for example when the coroutine gets canceled), the lock is automatically
217	returned.	385	returned.
218		386
		387	Locks are *not* recursive, locking from the same coro twice results in a
		388	deadlocked coro.
		389
219	Lock names should begin with a unique identifier (for example, find_map	390	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	391	uses map_find and cf::map::load uses map_load).
221		392
222	=cut	393	=item $locked = cf::lock_active $string
223		394
224	our %LOCK;	395	Return true if the lock is currently active, i.e. somebody has locked it.
		396
		397	=cut
		398
		399	our $LOCKS = new Coro::SemaphoreSet;
225		400
226	sub lock_wait($) {	401	sub lock_wait($) {
227	my ($key) = @_;	402	$LOCKS->wait ($_[0]);
228
229	# wait for lock, if any
230	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;
233	}
234	}	403	}
235		404
236	sub lock_acquire($) {	405	sub lock_acquire($) {
237	my ($key) = @_;	406	$LOCKS->guard ($_[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	}	407	}
		408
		409	sub lock_active($) {
		410	$LOCKS->count ($_[0]) < 1
		411	}
		412
		413	sub freeze_mainloop {
		414	tick_inhibit_inc;
		415
		416	&Guard::guard (\&tick_inhibit_dec);
		417	}
		418
		419	=item cf::periodic $interval, $cb
		420
		421	Like EV::periodic, but randomly selects a starting point so that the actions
		422	get spread over time.
		423
		424	=cut
		425
		426	sub periodic($$) {
		427	my ($interval, $cb) = @_;
		428
		429	my $start = rand List::Util::min 180, $interval;
		430
		431	EV::periodic $start, $interval, 0, $cb
		432	}
		433
		434	=item cf::get_slot $time[, $priority[, $name]]
		435
		436	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		437	This call blocks and returns only when you have at least C<$time> seconds
		438	of cpu time till the next tick. The slot is only valid till the next cede.
		439
		440	The optional C<$name> can be used to identify the job to run. It might be
		441	used for statistical purposes and should identify the same time-class.
		442
		443	Useful for short background jobs.
		444
		445	=cut
		446
		447	our @SLOT_QUEUE;
		448	our $SLOT_QUEUE;
		449	our $SLOT_DECAY = 0.9;
		450
		451	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		452	$SLOT_QUEUE = Coro::async {
		453	$Coro::current->desc ("timeslot manager");
		454
		455	my $signal = new Coro::Signal;
		456	my $busy;
		457
		458	while () {
		459	next_job:
		460
		461	my $avail = cf::till_tick;
		462
		463	for (0 .. $#SLOT_QUEUE) {
		464	if ($SLOT_QUEUE[$_][0] <= $avail) {
		465	$busy = 0;
		466	my $job = splice @SLOT_QUEUE, $_, 1, ();
		467	$job->[2]->send;
		468	Coro::cede;
		469	goto next_job;
		470	} else {
		471	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		472	}
		473	}
		474
		475	if (@SLOT_QUEUE) {
		476	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		477	push @cf::WAIT_FOR_TICK, $signal;
		478	$signal->wait;
		479	} else {
		480	$busy = 0;
		481	Coro::schedule;
		482	}
		483	}
		484	};
		485
		486	sub get_slot($;$$) {
		487	return if tick_inhibit || $Coro::current == $Coro::main;
		488
		489	my ($time, $pri, $name) = @_;
		490
		491	$time = clamp $time, 0.01, $TICK * .6;
		492
		493	my $sig = new Coro::Signal;
		494
		495	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		496	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		497	$SLOT_QUEUE->ready;
		498	$sig->wait;
		499	}
		500
		501	=item cf::async { BLOCK }
		502
		503	Currently the same as Coro::async_pool, meaning you cannot use
		504	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		505	thing you are allowed to do is call C<prio> on it.
		506
		507	=cut
		508
		509	BEGIN { *async = \&Coro::async_pool }
249		510
250	=item cf::sync_job { BLOCK }	511	=item cf::sync_job { BLOCK }
251		512
252	The design of crossfire+ requires that the main coro ($Coro::main) is	513	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	514	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	515	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		516	acceptable.
255		517
256	If it must be done, put the blocking parts into C<sync_job>. This will run	518	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	519	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	520	server will be frozen during this time, so the block should either finish
259	fast or be very important.	521	fast or be very important.
…		…
261	=cut	523	=cut
262		524
263	sub sync_job(&) {	525	sub sync_job(&) {
264	my ($job) = @_;	526	my ($job) = @_;
265		527
266	if ($Coro::current == $Coro::main) {	528	if (in_main) {
		529	my $time = AE::time;
		530
267	# this is the main coro, too bad, we have to block	531	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	532	# till the operation succeeds, freezing the server :/
269		533
270	# TODO: use suspend/resume instead	534	#LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	535
272	local $FREEZE = 1;	536	my $freeze_guard = freeze_mainloop;
273		537
274	my $busy = 1;	538	my $busy = 1;
275	my @res;	539	my @res;
276		540
277	(Coro::async {	541	(async {
		542	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	543	@res = eval { $job->() };
279	warn $@ if $@;	544	error $@ if $@;
280	undef $busy;	545	undef $busy;
281	})->prio (Coro::PRIO_MAX);	546	})->prio (Coro::PRIO_MAX);
282		547
283	while ($busy) {	548	while ($busy) {
		549	if (Coro::nready) {
284	Coro::cede_notself;	550	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	551	} else {
		552	EV::loop EV::LOOP_ONESHOT;
286	}	553	}
		554	}
		555
		556	my $time = AE::time - $time;
		557
		558	$TICK_START += $time; # do not account sync jobs to server load
287		559
288	wantarray ? @res : $res[0]	560	wantarray ? @res : $res[0]
289	} else {	561	} else {
290	# we are in another coroutine, how wonderful, everything just works	562	# we are in another coroutine, how wonderful, everything just works
291		563
292	$job->()	564	$job->()
293	}	565	}
294	}	566	}
295		567
296	=item $coro = cf::coro { BLOCK }	568	=item $coro = cf::async_ext { BLOCK }
297		569
298	Creates and returns a new coro. This coro is automcatially being canceled	570	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	571	extension calling this is being unloaded.
300		572
301	=cut	573	=cut
302		574
303	sub coro(&) {	575	sub async_ext(&) {
304	my $cb = shift;	576	my $cb = shift;
305		577
306	my $coro; $coro = async {	578	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		579
313	$coro->on_destroy (sub {	580	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	581	delete $EXT_CORO{$coro+0};
315	});	582	});
316	$EXT_CORO{$coro+0} = $coro;	583	$EXT_CORO{$coro+0} = $coro;
317		584
318	$coro	585	$coro
319	}	586	}
320		587
321	sub write_runtime {	588	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		589
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	590	Executes the given code block with the given arguments in a seperate
325	or return;	591	process, returning the results. Everything must be serialisable with
		592	Coro::Storable. May, of course, block. Note that the executed sub may
		593	never block itself or use any form of event handling.
326		594
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	595	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		596
331	aio_fsync $fh	597	sub post_fork {
332	and return;	598	reset_signals;
		599	}
333		600
334	close $fh	601	sub fork_call(&@) {
335	or return;	602	my ($cb, @args) = @_;
336		603
337	aio_rename "$runtime~", $runtime	604	# we seemingly have to make a local copy of the whole thing,
338	and return;	605	# otherwise perl prematurely frees the stuff :/
		606	# TODO: investigate and fix (likely this will be rather laborious)
339		607
		608	my @res = Coro::Util::fork_eval {
		609	cf::post_fork;
		610	&$cb
		611	}, @args;
		612
		613	wantarray ? @res : $res[-1]
		614	}
		615
		616	sub objinfo {
340	1	617	(
		618	"counter value" => cf::object::object_count,
		619	"objects created" => cf::object::create_count,
		620	"objects destroyed" => cf::object::destroy_count,
		621	"freelist size" => cf::object::free_count,
		622	"allocated objects" => cf::object::objects_size,
		623	"active objects" => cf::object::actives_size,
		624	)
		625	}
		626
		627	=item $coin = coin_from_name $name
		628
		629	=cut
		630
		631	our %coin_alias = (
		632	"silver" => "silvercoin",
		633	"silvercoin" => "silvercoin",
		634	"silvercoins" => "silvercoin",
		635	"gold" => "goldcoin",
		636	"goldcoin" => "goldcoin",
		637	"goldcoins" => "goldcoin",
		638	"platinum" => "platinacoin",
		639	"platinumcoin" => "platinacoin",
		640	"platinumcoins" => "platinacoin",
		641	"platina" => "platinacoin",
		642	"platinacoin" => "platinacoin",
		643	"platinacoins" => "platinacoin",
		644	"royalty" => "royalty",
		645	"royalties" => "royalty",
		646	);
		647
		648	sub coin_from_name($) {
		649	$coin_alias{$_[0]}
		650	? cf::arch::find $coin_alias{$_[0]}
		651	: undef
		652	}
		653
		654	=item $value = cf::db_get $family => $key
		655
		656	Returns a single value from the environment database.
		657
		658	=item cf::db_put $family => $key => $value
		659
		660	Stores the given C<$value> in the family. It can currently store binary
		661	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		662
		663	=item $db = cf::db_table "name"
		664
		665	Create and/or open a new database table. The string must not be "db" and must be unique
		666	within each server.
		667
		668	=cut
		669
		670	sub db_table($) {
		671	cf::error "db_get called from main context"
		672	if $Coro::current == $Coro::main;
		673
		674	my ($name) = @_;
		675	my $db = BDB::db_create $DB_ENV;
		676
		677	eval {
		678	$db->set_flags (BDB::CHKSUM);
		679
		680	utf8::encode $name;
		681	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		682	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		683	cf::cleanup "db_open(db): $!" if $!;
		684	};
		685	cf::cleanup "db_open(db): $@" if $@;
		686
		687	$db
		688	}
		689
		690	our $DB;
		691
		692	sub db_init {
		693	$DB ||= db_table "db";
		694	}
		695
		696	sub db_get($$) {
		697	my $key = "$_[0]/$_[1]";
		698
		699	cf::error "db_get called from main context"
		700	if $Coro::current == $Coro::main;
		701
		702	BDB::db_get $DB, undef, $key, my $data;
		703
		704	$! ? ()
		705	: $data
		706	}
		707
		708	sub db_put($$$) {
		709	BDB::dbreq_pri 4;
		710	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		711	}
		712
		713	=item cf::cache $id => [$paths...], $processversion => $process
		714
		715	Generic caching function that returns the value of the resource $id,
		716	caching and regenerating as required.
		717
		718	This function can block.
		719
		720	=cut
		721
		722	sub cache {
		723	my ($id, $src, $processversion, $process) = @_;
		724
		725	my $meta =
		726	join "\x00",
		727	$processversion,
		728	map {
		729	aio_stat $_
		730	and Carp::croak "$_: $!";
		731
		732	($_, (stat _)[7,9])
		733	} @$src;
		734
		735	my $dbmeta = db_get cache => "$id/meta";
		736	if ($dbmeta ne $meta) {
		737	# changed, we may need to process
		738
		739	my @data;
		740	my $md5;
		741
		742	for (0 .. $#$src) {
		743	0 <= aio_load $src->[$_], $data[$_]
		744	or Carp::croak "$src->[$_]: $!";
		745	}
		746
		747	# if processing is expensive, check
		748	# checksum first
		749	if (1) {
		750	$md5 =
		751	join "\x00",
		752	$processversion,
		753	map {
		754	cf::cede_to_tick;
		755	($src->[$_], Digest::MD5::md5_hex $data[$_])
		756	} 0.. $#$src;
		757
		758
		759	my $dbmd5 = db_get cache => "$id/md5";
		760	if ($dbmd5 eq $md5) {
		761	db_put cache => "$id/meta", $meta;
		762
		763	return db_get cache => "$id/data";
		764	}
		765	}
		766
		767	my $t1 = Time::HiRes::time;
		768	my $data = $process->(\@data);
		769	my $t2 = Time::HiRes::time;
		770
		771	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		772
		773	db_put cache => "$id/data", $data;
		774	db_put cache => "$id/md5" , $md5;
		775	db_put cache => "$id/meta", $meta;
		776
		777	return $data;
		778	}
		779
		780	db_get cache => "$id/data"
		781	}
		782
		783	=item cf::datalog type => key => value, ...
		784
		785	Log a datalog packet of the given type with the given key-value pairs.
		786
		787	=cut
		788
		789	sub datalog($@) {
		790	my ($type, %kv) = @_;
		791	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	792	}
342		793
343	=back	794	=back
344		795
345	=cut	796	=cut
346		797
347	#############################################################################	798	#############################################################################
348		799
349	package cf::path;
350
351	sub new {
352	my ($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	800	=head2 ATTACHABLE OBJECTS
470		801
471	Many objects in crossfire are so-called attachable objects. That means you can	802	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")	803	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	804	to it. All such attachable objects support the following methods.
474		805
475	In the following description, CLASS can be any of C<global>, C<object>	806	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	807	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	808	Deliantra).
478		809
479	=over 4	810	=over 4
480		811
481	=item $attachable->attach ($attachment, key => $value...)	812	=item $attachable->attach ($attachment, key => $value...)
482		813
…		…
526	=item cf::CLASS::attachment $name, ...	857	=item cf::CLASS::attachment $name, ...
527		858
528	Register an attachment by C<$name> through which attachable objects of the	859	Register an attachment by C<$name> through which attachable objects of the
529	given CLASS can refer to this attachment.	860	given CLASS can refer to this attachment.
530		861
531	Some classes such as crossfire maps and objects can specify attachments	862	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.	863	that are attached at load/instantiate time, thus the need for a name.
533		864
534	These calls expect any number of the following handler/hook descriptions:	865	These calls expect any number of the following handler/hook descriptions:
535		866
536	=over 4	867	=over 4
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	927	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	928	our @CB_MAP = ();
598		929
599	my %attachment;	930	my %attachment;
600		931
		932	sub cf::attachable::thawer_merge {
		933	# simply override everything except _meta
		934	local $_[0]{_meta};
		935	%{$_[0]} = %{$_[1]};
		936	}
		937
601	sub _attach_cb($$$$) {	938	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	939	my ($registry, $event, $prio, $cb) = @_;
603		940
604	use sort 'stable';	941	use sort 'stable';
605		942
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	976	$registry = $CB_TYPE[$object_type] ||= [];
640		977
641	} elsif ($type eq "subtype") {	978	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	979	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	980	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	981	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		982
646	} elsif ($type eq "package") {	983	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	984	my $pkg = shift @arg;
648		985
649	while (my ($name, $id) = each %cb_id) {	986	while (my ($name, $id) = each %cb_id) {
…		…
654		991
655	} elsif (exists $cb_id{$type}) {	992	} elsif (exists $cb_id{$type}) {
656	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	993	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
657		994
658	} elsif (ref $type) {	995	} elsif (ref $type) {
659	warn "attaching objects not supported, ignoring.\n";	996	error "attaching objects not supported, ignoring.\n";
660		997
661	} else {	998	} else {
662	shift @arg;	999	shift @arg;
663	warn "attach argument '$type' not supported, ignoring.\n";	1000	error "attach argument '$type' not supported, ignoring.\n";
664	}	1001	}
665	}	1002	}
666	}	1003	}
667		1004
668	sub _object_attach {	1005	sub _object_attach {
…		…
678	_attach $registry, $klass, @attach;	1015	_attach $registry, $klass, @attach;
679	}	1016	}
680		1017
681	$obj->{$name} = \%arg;	1018	$obj->{$name} = \%arg;
682	} else {	1019	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	1020	info "object uses attachment '$name' which is not available, postponing.\n";
684	}	1021	}
685		1022
686	$obj->{_attachment}{$name} = undef;	1023	$obj->{_attachment}{$name} = undef;
687	}	1024	}
688		1025
…		…
690	if (ref $_[0]) {	1027	if (ref $_[0]) {
691	_object_attach @_;	1028	_object_attach @_;
692	} else {	1029	} else {
693	_attach shift->_attach_registry, @_;	1030	_attach shift->_attach_registry, @_;
694	}	1031	}
		1032	_recalc_want;
695	};	1033	};
696		1034
697	# all those should be optimised	1035	# all those should be optimised
698	sub cf::attachable::detach {	1036	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	1037	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	1040	delete $obj->{_attachment}{$name};
703	reattach ($obj);	1041	reattach ($obj);
704	} else {	1042	} else {
705	Carp::croak "cannot, currently, detach class attachments";	1043	Carp::croak "cannot, currently, detach class attachments";
706	}	1044	}
		1045	_recalc_want;
707	};	1046	};
708		1047
709	sub cf::attachable::attached {	1048	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	1049	my ($obj, $name) = @_;
711		1050
…		…
726	";	1065	";
727	die if $@;	1066	die if $@;
728	}	1067	}
729		1068
730	our $override;	1069	our $override;
731	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1070	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732		1071
733	sub override {	1072	sub override {
734	$override = 1;	1073	$override = 1;
735	@invoke_results = ();	1074	@INVOKE_RESULTS = (@_);
736	}	1075	}
737		1076
738	sub do_invoke {	1077	sub do_invoke {
739	my $event = shift;	1078	my $event = shift;
740	my $callbacks = shift;	1079	my $callbacks = shift;
741		1080
742	@invoke_results = ();	1081	@INVOKE_RESULTS = ();
743		1082
744	local $override;	1083	local $override;
745		1084
746	for (@$callbacks) {	1085	for (@$callbacks) {
747	eval { &{$_->[1]} };	1086	eval { &{$_->[1]} };
748		1087
749	if ($@) {	1088	if ($@) {
750	warn "$@";
751	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1089	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
752	override;	1090	override;
753	}	1091	}
754		1092
755	return 1 if $override;	1093	return 1 if $override;
756	}	1094	}
757		1095
758	0	1096	0
759	}	1097	}
760		1098
761	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1099	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
762		1100
763	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1101	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
764		1102
765	Generate an object-specific event with the given arguments.	1103	Generate an object-specific event with the given arguments.
766		1104
767	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1105	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	1106	removed in future versions), and there is no public API to access override
769	results (if you must, access C<@cf::invoke_results> directly).	1107	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		1108
771	=back	1109	=back
772		1110
773	=cut	1111	=cut
774		1112
775	#############################################################################	1113	#############################################################################
776	# object support	1114	# object support
		1115
		1116	sub _object_equal($$);
		1117	sub _object_equal($$) {
		1118	my ($a, $b) = @_;
		1119
		1120	return 0 unless (ref $a) eq (ref $b);
		1121
		1122	if ("HASH" eq ref $a) {
		1123	my @ka = keys %$a;
		1124	my @kb = keys %$b;
		1125
		1126	return 0 if @ka != @kb;
		1127
		1128	for (0 .. $#ka) {
		1129	return 0 unless $ka[$_] eq $kb[$_];
		1130	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1131	}
		1132
		1133	} elsif ("ARRAY" eq ref $a) {
		1134
		1135	return 0 if @$a != @$b;
		1136
		1137	for (0 .. $#$a) {
		1138	return 0 unless _object_equal $a->[$_], $b->[$_];
		1139	}
		1140
		1141	} elsif ($a ne $b) {
		1142	return 0;
		1143	}
		1144
		1145	1
		1146	}
		1147
		1148	our $SLOW_MERGES;#d#
		1149	sub _can_merge {
		1150	my ($ob1, $ob2) = @_;
		1151
		1152	++$SLOW_MERGES;#d#
		1153
		1154	# we do the slow way here
		1155	return _object_equal $ob1, $ob2
		1156	}
777		1157
778	sub reattach {	1158	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	1159	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	1160	my ($obj) = @_;
		1161
		1162	# no longer needed after getting rid of delete_package?
		1163	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		1164
782	my $registry = $obj->registry;	1165	my $registry = $obj->registry;
783		1166
784	@$registry = ();	1167	@$registry = ();
785		1168
…		…
790	for (@$attach) {	1173	for (@$attach) {
791	my ($klass, @attach) = @$_;	1174	my ($klass, @attach) = @$_;
792	_attach $registry, $klass, @attach;	1175	_attach $registry, $klass, @attach;
793	}	1176	}
794	} else {	1177	} else {
795	warn "object uses attachment '$name' that is not available, postponing.\n";	1178	info "object uses attachment '$name' that is not available, postponing.\n";
796	}	1179	}
797	}	1180	}
798	}	1181	}
799		1182
800	cf::attachable->attach (	1183	cf::attachable->attach (
801	prio => -1000000,	1184	prio => -1000000,
802	on_instantiate => sub {	1185	on_instantiate => sub {
803	my ($obj, $data) = @_;	1186	my ($obj, $data) = @_;
804		1187
805	$data = from_json $data;	1188	$data = decode_json $data;
806		1189
807	for (@$data) {	1190	for (@$data) {
808	my ($name, $args) = @$_;	1191	my ($name, $args) = @$_;
809		1192
810	$obj->attach ($name, %{$args || {} });	1193	$obj->attach ($name, %{$args || {} });
…		…
826	sub object_freezer_save {	1209	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1210	my ($filename, $rdata, $objs) = @_;
828		1211
829	sync_job {	1212	sync_job {
830	if (length $$rdata) {	1213	if (length $$rdata) {
		1214	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1215	trace sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1216	$decname, length $$rdata, scalar @$objs
		1217	if $VERBOSE_IO;
833		1218
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1219	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1220	aio_chmod $fh, SAVE_MODE;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1221	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1222	if ($cf::USE_FSYNC) {
		1223	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;	1224	aio_fsync $fh;
		1225	}
838	close $fh;	1226	aio_close $fh;
839		1227
840	if (@$objs) {	1228	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1229	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	1230	aio_chmod $fh, SAVE_MODE;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1231	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1232	aio_write $fh, 0, (length $data), $data, 0;
		1233	if ($cf::USE_FSYNC) {
		1234	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;	1235	aio_fsync $fh;
		1236	}
846	close $fh;	1237	aio_close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1238	aio_rename "$filename.pst~", "$filename.pst";
848	}	1239	}
849	} else {	1240	} else {
850	aio_unlink "$filename.pst";	1241	aio_unlink "$filename.pst";
851	}	1242	}
852		1243
853	aio_rename "$filename~", $filename;	1244	aio_rename "$filename~", $filename;
		1245
		1246	$filename =~ s%/[^/]+$%%;
		1247	aio_pathsync $filename if $cf::USE_FSYNC;
854	} else {	1248	} else {
855	warn "FATAL: $filename~: $!\n";	1249	error "unable to save objects: $filename~: $!\n";
856	}	1250	}
857	} else {	1251	} else {
858	aio_unlink $filename;	1252	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1253	aio_unlink "$filename.pst";
860	}	1254	}
861	}	1255	};
862	}	1256	}
863		1257
864	sub object_freezer_as_string {	1258	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1259	my ($rdata, $objs) = @_;
866		1260
…		…
878	or return;	1272	or return;
879		1273
880	unless (aio_stat "$filename.pst") {	1274	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1275	(aio_load "$filename.pst", $av) >= 0
882	or return;	1276	or return;
		1277
883	$av = eval { (Storable::thaw $av)->{objs} };	1278	my $st = eval { Coro::Storable::thaw $av };
		1279	$av = $st->{objs};
884	}	1280	}
885		1281
		1282	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1283	trace sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1284	$decname, length $data, scalar @{$av || []}
		1285	if $VERBOSE_IO;
		1286
888	return ($data, $av);	1287	($data, $av)
889	}	1288	}
		1289
		1290	=head2 COMMAND CALLBACKS
		1291
		1292	=over 4
		1293
		1294	=cut
890		1295
891	#############################################################################	1296	#############################################################################
892	# command handling &c	1297	# command handling &c
893		1298
894	=item cf::register_command $name => \&callback($ob,$args);	1299	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1312	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1313	}
909		1314
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1315	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1316
912	Register a callbackf ro execution when the client sends an extcmd packet.	1317	Register a callback for execution when the client sends an (synchronous)
		1318	extcmd packet. Ext commands will be processed in the order they are
		1319	received by the server, like other user commands. The first argument is
		1320	the logged-in player. Ext commands can only be processed after a player
		1321	has logged in successfully.
913		1322
914	If the callback returns something, it is sent back as if reply was being	1323	If the callback returns something, it is sent back as if reply was being
915	called.	1324	called.
916		1325
		1326	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1327
		1328	Register a callback for execution when the client sends an (asynchronous)
		1329	exticmd packet. Exti commands are processed by the server as soon as they
		1330	are received, i.e. out of order w.r.t. other commands. The first argument
		1331	is a client socket. Exti commands can be received anytime, even before
		1332	log-in.
		1333
		1334	If the callback returns something, it is sent back as if reply was being
		1335	called.
		1336
917	=cut	1337	=cut
918		1338
919	sub register_extcmd {	1339	sub register_extcmd {
920	my ($name, $cb) = @_;	1340	my ($name, $cb) = @_;
921		1341
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1342	$EXTCMD{$name} = $cb;
926	}	1343	}
		1344
		1345	sub register_exticmd {
		1346	my ($name, $cb) = @_;
		1347
		1348	$EXTICMD{$name} = $cb;
		1349	}
		1350
		1351	use File::Glob ();
927		1352
928	cf::player->attach (	1353	cf::player->attach (
929	on_command => sub {	1354	on_unknown_command => sub {
930	my ($pl, $name, $params) = @_;	1355	my ($pl, $name, $params) = @_;
931		1356
932	my $cb = $COMMAND{$name}	1357	my $cb = $COMMAND{$name}
933	or return;	1358	or return;
934		1359
…		…
939	cf::override;	1364	cf::override;
940	},	1365	},
941	on_extcmd => sub {	1366	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1367	my ($pl, $buf) = @_;
943		1368
944	my $msg = eval { from_json $buf };	1369	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1370
946	if (ref $msg) {	1371	if (ref $msg) {
		1372	my ($type, $reply, @payload) =
		1373	"ARRAY" eq ref $msg
		1374	? @$msg
		1375	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1376
		1377	my @reply;
		1378
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1379	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1380	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1381	}
		1382
		1383	$pl->ext_reply ($reply, @reply)
		1384	if $reply;
		1385
952	} else {	1386	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1387	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1388	}
955		1389
956	cf::override;	1390	cf::override;
957	},	1391	},
958	);	1392	);
959		1393
960	sub register {	1394	# "readahead" all extensions
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1395	sub cache_extensions {
967	my ($path) = @_;	1396	my $grp = IO::AIO::aio_group;
968		1397
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1398	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
970	my $base = $1;	1399	for (grep /\.ext$/, @{$_[0]}) {
971	my $pkg = $1;	1400	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	}	1401	}
1019	}	1402	};
1020		1403
1021	# remove extcmds	1404	$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	}	1405	}
1035		1406
1036	sub load_extensions {	1407	sub load_extensions {
		1408	info "loading extensions...";
		1409
		1410	cf::sync_job {
		1411	my %todo;
		1412
1037	for my $ext (<$LIBDIR/*.ext>) {	1413	for my $path (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;	1414	next unless -r $path;
1039	eval {	1415
1040	load_extension $ext;	1416	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1417	my $base = $1;
		1418	my $pkg = $1;
		1419	$pkg =~ s/[^[:word:]]/_/g;
		1420	$pkg = "ext::$pkg";
		1421
		1422	open my $fh, "<:utf8", $path
		1423	or die "$path: $!";
		1424
		1425	my $source = do { local $/; <$fh> };
		1426
		1427	my %ext = (
		1428	path => $path,
		1429	base => $base,
		1430	pkg => $pkg,
		1431	);
		1432
		1433	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1434	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1435
		1436	$ext{source} =
		1437	"package $pkg; use common::sense;\n"
		1438	. "#line 1 \"$path\"\n{\n"
		1439	. $source
		1440	. "\n};\n1";
		1441
		1442	$todo{$base} = \%ext;
		1443	}
		1444
		1445	my $pass = 0;
		1446	my %done;
		1447	while (%todo) {
		1448	my $progress;
		1449
		1450	++$pass;
		1451
		1452	ext:
		1453	while (my ($k, $v) = each %todo) {
		1454	for (split /,\s*/, $v->{meta}{depends}) {
		1455	next ext
		1456	unless exists $done{$_};
		1457	}
		1458
		1459	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1460
		1461	my $active = eval $v->{source};
		1462
		1463	if (length $@) {
		1464	error "$v->{path}: $@\n";
		1465
		1466	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1467	if exists $v->{meta}{mandatory};
		1468
		1469	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1470	delete $todo{$k};
		1471	} else {
		1472	$done{$k} = delete $todo{$k};
		1473	push @EXTS, $v->{pkg};
		1474	$progress = 1;
		1475
		1476	info "$v->{base}: extension inactive.\n"
		1477	unless $active;
		1478	}
1041	1	1479	}
1042	} or warn "$ext not loaded: $@";	1480
		1481	unless ($progress) {
		1482	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1483
		1484	while (my ($k, $v) = each %todo) {
		1485	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1486	if exists $v->{meta}{mandatory};
		1487	}
		1488	}
		1489	}
1043	}	1490	};
1044	}	1491	}
1045		1492
1046	#############################################################################	1493	#############################################################################
1047	# load/save/clean perl data associated with a map
1048		1494
1049	*cf::mapsupport::on_clean = sub {	1495	=back
		1496
		1497	=head2 CORE EXTENSIONS
		1498
		1499	Functions and methods that extend core deliantra objects.
		1500
		1501	=cut
		1502
		1503	package cf::player;
		1504
		1505	use Coro::AIO;
		1506
		1507	=head3 cf::player
		1508
		1509	=over 4
		1510
		1511	=item cf::player::num_playing
		1512
		1513	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1514
		1515	=cut
		1516
		1517	sub num_playing {
		1518	scalar grep
		1519	$_->ob->map
		1520	&& !$_->hidden
		1521	&& !$_->ob->flag (cf::FLAG_WIZ),
		1522	cf::player::list
		1523	}
		1524
		1525	=item cf::player::find $login
		1526
		1527	Returns the given player object, loading it if necessary (might block).
		1528
		1529	=cut
		1530
		1531	sub playerdir($) {
		1532	"$PLAYERDIR/"
		1533	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1534	}
		1535
		1536	sub path($) {
		1537	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1538
		1539	(playerdir $login) . "/playerdata"
		1540	}
		1541
		1542	sub find_active($) {
		1543	$cf::PLAYER{$_[0]}
		1544	and $cf::PLAYER{$_[0]}->active
		1545	and $cf::PLAYER{$_[0]}
		1546	}
		1547
		1548	sub exists($) {
1050	my ($map) = @_;	1549	my ($login) = @_;
1051		1550
1052	my $path = $map->tmpname;	1551	$cf::PLAYER{$login}
1053	defined $path or return;	1552	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	}	1553	}
1066		1554
1067	# TODO: compatibility cruft, remove when no longer needed	1555	sub find($) {
		1556	return $cf::PLAYER{$_[0]} || do {
		1557	my $login = $_[0];
		1558
		1559	my $guard = cf::lock_acquire "user_find:$login";
		1560
		1561	$cf::PLAYER{$_[0]} || do {
		1562	# rename old playerfiles to new ones
		1563	#TODO: remove when no longer required
		1564	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1565	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1566	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1567	aio_unlink +(playerdir $login) . "/$login.pl";
		1568
		1569	my $f = new_from_file cf::object::thawer path $login
		1570	or return;
		1571
		1572	my $pl = cf::player::load_pl $f
		1573	or return;
		1574
		1575	local $cf::PLAYER_LOADING{$login} = $pl;
		1576	$f->resolve_delayed_derefs;
		1577	$cf::PLAYER{$login} = $pl
		1578	}
		1579	}
		1580	}
		1581
1068	cf::player->attach (	1582	cf::player->attach (
1069	on_load => sub {	1583	on_load => sub {
1070	my ($pl, $path) = @_;	1584	my ($pl, $path) = @_;
1071		1585
1072	for my $o (all_objects $pl->ob) {	1586	# restore slots saved in save, below
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1587	my $slots = delete $pl->{_slots};
1074	$o->set_ob_key_value ("_perl_data");
1075		1588
1076	%$o = %{ Storable::thaw pack "H*", $value };	1589	$pl->ob->current_weapon ($slots->[0]);
1077	}	1590	$pl->combat_ob ($slots->[1]);
1078	}	1591	$pl->ranged_ob ($slots->[2]);
1079	},	1592	},
1080	);	1593	);
1081		1594
1082	#############################################################################	1595	sub save($) {
		1596	my ($pl) = @_;
1083		1597
1084	=head2 CORE EXTENSIONS	1598	return if $pl->{deny_save};
1085		1599
1086	Functions and methods that extend core crossfire objects.	1600	my $path = path $pl;
		1601	my $guard = cf::lock_acquire "user_save:$path";
1087		1602
1088	=head3 cf::player	1603	return if $pl->{deny_save};
		1604
		1605	aio_mkdir playerdir $pl, 0770;
		1606	$pl->{last_save} = $cf::RUNTIME;
		1607
		1608	cf::get_slot 0.01;
		1609
		1610	# save slots, to be restored later
		1611	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1612
		1613	$pl->save_pl ($path);
		1614	cf::cede_to_tick;
		1615	}
		1616
		1617	sub new($) {
		1618	my ($login) = @_;
		1619
		1620	my $self = create;
		1621
		1622	$self->ob->name ($login);
		1623	$self->{deny_save} = 1;
		1624
		1625	$cf::PLAYER{$login} = $self;
		1626
		1627	$self
		1628	}
		1629
		1630	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1631
		1632	=cut
		1633
		1634	sub send_msg {
		1635	my $ns = shift->ns
		1636	or return;
		1637	$ns->send_msg (@_);
		1638	}
		1639
		1640	=item $pl->quit_character
		1641
		1642	Nukes the player without looking back. If logged in, the connection will
		1643	be destroyed. May block for a long time.
		1644
		1645	=cut
		1646
		1647	sub quit_character {
		1648	my ($pl) = @_;
		1649
		1650	my $name = $pl->ob->name;
		1651
		1652	$pl->{deny_save} = 1;
		1653	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1654
		1655	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1656	$pl->deactivate;
		1657
		1658	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1659	ext::highscore::check ($pl->ob);
		1660
		1661	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1662	$pl->ns->destroy if $pl->ns;
		1663
		1664	my $path = playerdir $pl;
		1665	my $temp = "$path~$cf::RUNTIME~deleting~";
		1666	aio_rename $path, $temp;
		1667	delete $cf::PLAYER{$pl->ob->name};
		1668	$pl->destroy;
		1669
		1670	my $prefix = qr<^~\Q$name\E/>;
		1671
		1672	# nuke player maps
		1673	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1674
		1675	IO::AIO::aio_rmtree $temp;
		1676	}
		1677
		1678	=item $pl->kick
		1679
		1680	Kicks a player out of the game. This destroys the connection.
		1681
		1682	=cut
		1683
		1684	sub kick {
		1685	my ($pl, $kicker) = @_;
		1686
		1687	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1688	$pl->killer ("kicked");
		1689	$pl->ns->destroy;
		1690	}
		1691
		1692	=item cf::player::list_logins
		1693
		1694	Returns am arrayref of all valid playernames in the system, can take a
		1695	while and may block, so not sync_job-capable, ever.
		1696
		1697	=cut
		1698
		1699	sub list_logins {
		1700	my $dirs = aio_readdir $PLAYERDIR
		1701	or return [];
		1702
		1703	my @logins;
		1704
		1705	for my $login (@$dirs) {
		1706	my $path = path $login;
		1707
		1708	# a .pst is a dead give-away for a valid player
		1709	# if no pst file found, open and chekc for blocked users
		1710	if (aio_stat "$path.pst") {
		1711	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1712	aio_read $fh, 0, 512, my $buf, 0 or next;
		1713	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1714	}
		1715
		1716	utf8::decode $login;
		1717	push @logins, $login;
		1718	}
		1719
		1720	\@logins
		1721	}
		1722
		1723	=item $player->maps
		1724
		1725	=item cf::player::maps $login
		1726
		1727	Returns an arrayref of map paths that are private for this
		1728	player. May block.
		1729
		1730	=cut
		1731
		1732	sub maps($) {
		1733	my ($pl) = @_;
		1734
		1735	$pl = ref $pl ? $pl->ob->name : $pl;
		1736
		1737	my $files = aio_readdir playerdir $pl
		1738	or return;
		1739
		1740	my @paths;
		1741
		1742	for (@$files) {
		1743	utf8::decode $_;
		1744	next if /\.(?:pl|pst)$/;
		1745	next unless /^$PATH_SEP/o;
		1746
		1747	push @paths, cf::map::normalise "~$pl/$_";
		1748	}
		1749
		1750	\@paths
		1751	}
		1752
		1753	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1754
		1755	Expand deliantra pod fragments into protocol xml.
		1756
		1757	=item $player->ext_reply ($msgid, @msg)
		1758
		1759	Sends an ext reply to the player.
		1760
		1761	=cut
		1762
		1763	sub ext_reply($$@) {
		1764	my ($self, $id, @msg) = @_;
		1765
		1766	$self->ns->ext_reply ($id, @msg)
		1767	}
		1768
		1769	=item $player->ext_msg ($type, @msg)
		1770
		1771	Sends an ext event to the client.
		1772
		1773	=cut
		1774
		1775	sub ext_msg($$@) {
		1776	my ($self, $type, @msg) = @_;
		1777
		1778	$self->ns->ext_msg ($type, @msg);
		1779	}
		1780
		1781	=head3 cf::region
1089		1782
1090	=over 4	1783	=over 4
1091		1784
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut	1785	=cut
1097		1786
1098	sub cf::player::exists($) {	1787	package cf::region;
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102		1788
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)	1789	=item cf::region::find_by_path $path
1104		1790
1105	Sends an ext reply to the player.	1791	Tries to decuce the likely region for a map knowing only its path.
1106		1792
1107	=cut	1793	=cut
1108		1794
1109	sub cf::player::ext_reply($$$%) {	1795	sub find_by_path($) {
1110	my ($self, $id, %msg) = @_;	1796	my ($path) = @_;
1111		1797
1112	$msg{msgid} = $id;	1798	$path =~ s/^~[^\/]*//; # skip ~login
1113		1799
1114	$self->send ("ext " . to_json \%msg);	1800	my ($match, $specificity);
		1801
		1802	for my $region (list) {
		1803	if ($region->{match} && $path =~ $region->{match}) {
		1804	($match, $specificity) = ($region, $region->specificity)
		1805	if $region->specificity > $specificity;
		1806	}
		1807	}
		1808
		1809	$match
1115	}	1810	}
1116		1811
1117	=back	1812	=back
1118
1119		1813
1120	=head3 cf::map	1814	=head3 cf::map
1121		1815
1122	=over 4	1816	=over 4
1123		1817
…		…
1126	package cf::map;	1820	package cf::map;
1127		1821
1128	use Fcntl;	1822	use Fcntl;
1129	use Coro::AIO;	1823	use Coro::AIO;
1130		1824
		1825	use overload
		1826	'""' => \&as_string,
		1827	fallback => 1;
		1828
1131	our $MAX_RESET = 7200;	1829	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1830	our $DEFAULT_RESET = 3000;
1133		1831
1134	sub generate_random_map {	1832	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1833	my ($self, $rmp) = @_;
		1834
		1835	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1136		1836
1137	# mit "rum" bekleckern, nicht	1837	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1838	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1839	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1840	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1841	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1842	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1843	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1844	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1845	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1846	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1847	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1848	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1849	(cf::region::find $rmp->{region}), $rmp->{custom}
		1850	)
1151	}	1851	}
1152		1852
1153	# and all this just because we cannot iterate over	1853	=item cf::map->register ($regex, $prio)
1154	# all maps in C++...
1155	sub change_all_map_light {
1156	my ($change) = @_;
1157		1854
1158	$_->change_map_light ($change)	1855	Register a handler for the map path matching the given regex at the
1159	for grep $_->outdoor, values %cf::MAP;	1856	givne priority (higher is better, built-in handlers have priority 0, the
1160	}	1857	default).
1161		1858
1162	sub try_load_header($) {	1859	=cut
		1860
		1861	sub register {
		1862	my (undef, $regex, $prio) = @_;
		1863	my $pkg = caller;
		1864
		1865	push @{"$pkg\::ISA"}, __PACKAGE__;
		1866
		1867	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1868	}
		1869
		1870	# also paths starting with '/'
		1871	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1872
		1873	sub thawer_merge {
		1874	my ($self, $merge) = @_;
		1875
		1876	# we have to keep some variables in memory intact
		1877	local $self->{path};
		1878	local $self->{load_path};
		1879
		1880	$self->SUPER::thawer_merge ($merge);
		1881	}
		1882
		1883	sub normalise {
1163	my ($path) = @_;	1884	my ($path, $base) = @_;
		1885
		1886	$path = "$path"; # make sure it's a string
		1887
		1888	$path =~ s/\.map$//;
		1889
		1890	# map plan:
		1891	#
		1892	# /! non-realised random map exit (special hack!)
		1893	# {... are special paths that are not being touched
		1894	# ?xxx/... are special absolute paths
		1895	# ?random/... random maps
		1896	# /... normal maps
		1897	# ~user/... per-player map of a specific user
		1898
		1899	$path =~ s/$PATH_SEP/\//go;
		1900
		1901	# treat it as relative path if it starts with
		1902	# something that looks reasonable
		1903	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1904	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1905
		1906	$base =~ s{[^/]+/?$}{};
		1907	$path = "$base/$path";
		1908	}
		1909
		1910	for ($path) {
		1911	redo if s{//}{/};
		1912	redo if s{/\.?/}{/};
		1913	redo if s{/[^/]+/\.\./}{/};
		1914	}
		1915
		1916	$path
		1917	}
		1918
		1919	sub new_from_path {
		1920	my (undef, $path, $base) = @_;
		1921
		1922	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1923
		1924	$path = normalise $path, $base;
		1925
		1926	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1927	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1928	my $self = bless cf::map::new, $pkg;
		1929	$self->{path} = $path; $self->path ($path);
		1930	$self->init; # pass $1 etc.
		1931	return $self;
		1932	}
		1933	}
		1934
		1935	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1936	()
		1937	}
		1938
		1939	sub init {
		1940	my ($self) = @_;
		1941
		1942	$self
		1943	}
		1944
		1945	sub as_string {
		1946	my ($self) = @_;
		1947
		1948	"$self->{path}"
		1949	}
		1950
		1951	# the displayed name, this is a one way mapping
		1952	sub visible_name {
		1953	&as_string
		1954	}
		1955
		1956	# the original (read-only) location
		1957	sub load_path {
		1958	my ($self) = @_;
		1959
		1960	"$MAPDIR/$self->{path}.map"
		1961	}
		1962
		1963	# the temporary/swap location
		1964	sub save_path {
		1965	my ($self) = @_;
		1966
		1967	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1968	"$TMPDIR/$path.map"
		1969	}
		1970
		1971	# the unique path, undef == no special unique path
		1972	sub uniq_path {
		1973	my ($self) = @_;
		1974
		1975	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1976	"$UNIQUEDIR/$path"
		1977	}
		1978
		1979	sub decay_objects {
		1980	my ($self) = @_;
		1981
		1982	return if $self->{deny_reset};
		1983
		1984	$self->do_decay_objects;
		1985	}
		1986
		1987	sub unlink_save {
		1988	my ($self) = @_;
		1989
		1990	utf8::encode (my $save = $self->save_path);
		1991	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1992	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1993	}
		1994
		1995	sub load_header_from($) {
		1996	my ($self, $path) = @_;
1164		1997
1165	utf8::encode $path;	1998	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1999	my $f = new_from_file cf::object::thawer $path
1167	or return;	2000	or return;
1168		2001
1169	my $map = cf::map::new	2002	$self->_load_header ($f)
1170	or return;	2003	or return;
1171		2004
1172	$map->load_header ($path)	2005	local $MAP_LOADING{$self->{path}} = $self;
		2006	$f->resolve_delayed_derefs;
		2007
		2008	$self->{load_path} = $path;
		2009
		2010	1
		2011	}
		2012
		2013	sub load_header_orig {
		2014	my ($self) = @_;
		2015
		2016	$self->load_header_from ($self->load_path)
		2017	}
		2018
		2019	sub load_header_temp {
		2020	my ($self) = @_;
		2021
		2022	$self->load_header_from ($self->save_path)
		2023	}
		2024
		2025	sub prepare_temp {
		2026	my ($self) = @_;
		2027
		2028	$self->last_access ((delete $self->{last_access})
		2029	|| $cf::RUNTIME); #d#
		2030	# safety
		2031	$self->{instantiate_time} = $cf::RUNTIME
		2032	if $self->{instantiate_time} > $cf::RUNTIME;
		2033	}
		2034
		2035	sub prepare_orig {
		2036	my ($self) = @_;
		2037
		2038	$self->{load_original} = 1;
		2039	$self->{instantiate_time} = $cf::RUNTIME;
		2040	$self->last_access ($cf::RUNTIME);
		2041	$self->instantiate;
		2042	}
		2043
		2044	sub load_header {
		2045	my ($self) = @_;
		2046
		2047	if ($self->load_header_temp) {
		2048	$self->prepare_temp;
		2049	} else {
		2050	$self->load_header_orig
1173	or return;	2051	or return;
		2052	$self->prepare_orig;
		2053	}
1174		2054
1175	$map->{load_path} = $path;	2055	$self->{deny_reset} = 1
		2056	if $self->no_reset;
1176		2057
1177	$map	2058	$self->default_region (cf::region::find_by_path $self->{path})
1178	}	2059	unless $self->default_region;
1179		2060
		2061	1
		2062	}
		2063
1180	sub find_map;	2064	sub find;
1181	sub find_map {	2065	sub find {
1182	my ($path, $origin) = @_;	2066	my ($path, $origin) = @_;
1183		2067
1184	#warn "find_map<$path,$origin>\n";#d#	2068	cf::cede_to_tick;
1185		2069
1186	$path = new cf::path $path, $origin && $origin->path;	2070	$path = normalise $path, $origin && $origin->path;
1187	my $key = $path->as_string;
1188		2071
1189	cf::lock_wait "map_find:$key";	2072	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1190
1191	$cf::MAP{$key} || do {
1192	my $guard = cf::lock_acquire "map_find:$key";	2073	my $guard2 = cf::lock_acquire "map_find:$path";
1193		2074
1194	# do it the slow way	2075	$cf::MAP{$path} || do {
1195	my $map = try_load_header $path->save_path;	2076	my $map = new_from_path cf::map $path
1196
1197	if ($map) {
1198	# safety
1199	$map->{instantiate_time} = $cf::RUNTIME
1200	if $map->{instantiate_time} > $cf::RUNTIME;
1201	} else {
1202	if (my $rmp = $path->random_map_params) {
1203	$map = generate_random_map $key, $rmp;
1204	} else {
1205	$map = try_load_header $path->load_path;
1206	}
1207
1208	$map or return;	2077	or return;
1209		2078
1210	$map->{load_original} = 1;
1211	$map->{instantiate_time} = $cf::RUNTIME;
1212	$map->instantiate;
1213
1214	# per-player maps become, after loading, normal maps
1215	$map->per_player (0) if $path->{user_rel};
1216	}
1217
1218	$map->path ($key);
1219	$map->{path} = $path;
1220	$map->{last_save} = $cf::RUNTIME;	2079	$map->{last_save} = $cf::RUNTIME;
1221	$map->last_access ($cf::RUNTIME);
1222		2080
1223	if ($map->should_reset) {	2081	$map->load_header
		2082	or return;
		2083
		2084	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2085	# doing this can freeze the server in a sync job, obviously
		2086	#$cf::WAIT_FOR_TICK->wait;
		2087	undef $guard2;
		2088	undef $guard1;
1224	$map->reset;	2089	$map->reset;
1225	undef $guard;	2090	return find $path;
1226	$map = find_map $path
1227	or return;
1228	}	2091	}
1229		2092
1230	$cf::MAP{$key} = $map	2093	$cf::MAP{$path} = $map
1231	}	2094	}
1232	}	2095	}
		2096
		2097	sub pre_load { }
		2098	#sub post_load { } # XS
1233		2099
1234	sub load {	2100	sub load {
1235	my ($self) = @_;	2101	my ($self) = @_;
1236		2102
		2103	local $self->{deny_reset} = 1; # loading can take a long time
		2104
1237	my $path = $self->{path};	2105	my $path = $self->{path};
		2106
		2107	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2108	my $guard = cf::lock_acquire "map_data:$path";
1239		2109
		2110	return unless $self->valid;
1240	return if $self->in_memory != cf::MAP_SWAPPED;	2111	return unless $self->in_memory == cf::MAP_SWAPPED;
1241		2112
1242	$self->in_memory (cf::MAP_LOADING);	2113	$self->in_memory (cf::MAP_LOADING);
1243		2114
1244	$self->alloc;	2115	$self->alloc;
1245	$self->load_objects ($self->{load_path}, 1)	2116
		2117	$self->pre_load;
		2118	cf::cede_to_tick;
		2119
		2120	my $f = new_from_file cf::object::thawer $self->{load_path};
		2121	$f->skip_block;
		2122	$self->_load_objects ($f)
1246	or return;	2123	or return;
1247		2124
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2125	$self->post_load_original
1249	if delete $self->{load_original};	2126	if delete $self->{load_original};
1250		2127
1251	if (my $uniq = $path->uniq_path) {	2128	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	2129	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	2130	unless (aio_stat $uniq) {
		2131	if (my $f = new_from_file cf::object::thawer $uniq) {
1254	$self->clear_unique_items;	2132	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	2133	$self->_load_objects ($f);
		2134	$f->resolve_delayed_derefs;
		2135	}
1256	}	2136	}
1257	}	2137	}
1258		2138
		2139	$f->resolve_delayed_derefs;
		2140
		2141	cf::cede_to_tick;
1259	# now do the right thing for maps	2142	# now do the right thing for maps
1260	$self->link_multipart_objects;	2143	$self->link_multipart_objects;
1261
1262	if ($self->{path}->is_style_map) {
1263	$self->{deny_save} = 1;
1264	$self->{deny_reset} = 1;
1265	} else {
1266	$self->fix_auto_apply;
1267	$self->decay_objects;
1268	$self->update_buttons;
1269	$self->set_darkness_map;
1270	$self->difficulty ($self->estimate_difficulty)	2144	$self->difficulty ($self->estimate_difficulty)
1271	unless $self->difficulty;	2145	unless $self->difficulty;
		2146	cf::cede_to_tick;
		2147
		2148	unless ($self->{deny_activate}) {
		2149	$self->decay_objects;
		2150	$self->fix_auto_apply;
		2151	$self->update_buttons;
		2152	cf::cede_to_tick;
1272	$self->activate;	2153	$self->activate;
1273	}	2154	}
1274		2155
		2156	$self->{last_save} = $cf::RUNTIME;
		2157	$self->last_access ($cf::RUNTIME);
		2158
1275	$self->in_memory (cf::MAP_IN_MEMORY);	2159	$self->in_memory (cf::MAP_ACTIVE);
1276	}	2160	}
1277		2161
1278	sub load_map_sync {	2162	$self->post_load;
		2163	}
		2164
		2165	# customize the map for a given player, i.e.
		2166	# return the _real_ map. used by e.g. per-player
		2167	# maps to change the path to ~playername/mappath
		2168	sub customise_for {
		2169	my ($self, $ob) = @_;
		2170
		2171	return find "~" . $ob->name . "/" . $self->{path}
		2172	if $self->per_player;
		2173
		2174	# return find "?party/" . $ob->name . "/" . $self->{path}
		2175	# if $self->per_party;
		2176
		2177	$self
		2178	}
		2179
		2180	# find and load all maps in the 3x3 area around a map
		2181	sub load_neighbours {
		2182	my ($map) = @_;
		2183
		2184	my @neigh; # diagonal neighbours
		2185
		2186	for (0 .. 3) {
		2187	my $neigh = $map->tile_path ($_)
		2188	or next;
		2189	$neigh = find $neigh, $map
		2190	or next;
		2191	$neigh->load;
		2192
		2193	# now find the diagonal neighbours
		2194	push @neigh,
		2195	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2196	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2197	}
		2198
		2199	for (grep defined $_->[0], @neigh) {
		2200	my ($path, $origin) = @$_;
		2201	my $neigh = find $path, $origin
		2202	or next;
		2203	$neigh->load;
		2204	}
		2205	}
		2206
		2207	sub find_sync {
1279	my ($path, $origin) = @_;	2208	my ($path, $origin) = @_;
1280		2209
1281	#warn "load_map_sync<$path, $origin>\n";#d#	2210	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2211	if $Coro::current == $Coro::main;
1282		2212
1283	cf::sync_job {	2213	find $path, $origin
1284	my $map = cf::map::find_map $path, $origin	2214	}
1285	or return;	2215
		2216	sub do_load_sync {
		2217	my ($map) = @_;
		2218
		2219	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2220	if $Coro::current == $Coro::main;
		2221
1286	$map->load;	2222	$map->load;
1287	$map	2223	}
		2224
		2225	our %MAP_PREFETCH;
		2226	our $MAP_PREFETCHER = undef;
		2227
		2228	sub find_async {
		2229	my ($path, $origin, $load) = @_;
		2230
		2231	$path = normalise $path, $origin && $origin->{path};
		2232
		2233	if (my $map = $cf::MAP{$path}) {
		2234	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2235	}
		2236
		2237	$MAP_PREFETCH{$path} |= $load;
		2238
		2239	$MAP_PREFETCHER ||= cf::async {
		2240	$Coro::current->{desc} = "map prefetcher";
		2241
		2242	while (%MAP_PREFETCH) {
		2243	while (my ($k, $v) = each %MAP_PREFETCH) {
		2244	if (my $map = find $k) {
		2245	$map->load if $v;
		2246	}
		2247
		2248	delete $MAP_PREFETCH{$k};
		2249	}
		2250	}
		2251	undef $MAP_PREFETCHER;
		2252	};
		2253	$MAP_PREFETCHER->prio (6);
		2254
		2255	()
		2256	}
		2257
		2258	# common code, used by both ->save and ->swapout
		2259	sub _save {
		2260	my ($self) = @_;
		2261
		2262	$self->{last_save} = $cf::RUNTIME;
		2263
		2264	return unless $self->dirty;
		2265
		2266	my $save = $self->save_path; utf8::encode $save;
		2267	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2268
		2269	$self->{load_path} = $save;
		2270
		2271	return if $self->{deny_save};
		2272
		2273	local $self->{last_access} = $self->last_access;#d#
		2274
		2275	cf::async {
		2276	$Coro::current->{desc} = "map player save";
		2277	$_->contr->save for $self->players;
		2278	};
		2279
		2280	cf::get_slot 0.02;
		2281
		2282	if ($uniq) {
		2283	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2284	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2285	} else {
		2286	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1288	}	2287	}
1289	}	2288	}
1290		2289
1291	sub save {	2290	sub save {
1292	my ($self) = @_;	2291	my ($self) = @_;
1293		2292
1294	$self->{last_save} = $cf::RUNTIME;	2293	my $lock = cf::lock_acquire "map_data:$self->{path}";
1295		2294
1296	return unless $self->dirty;	2295	$self->_save;
1297
1298	my $save = $self->{path}->save_path; utf8::encode $save;
1299	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1300
1301	$self->{load_path} = $save;
1302
1303	return if $self->{deny_save};
1304
1305	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}
1311	}	2296	}
1312		2297
1313	sub swap_out {	2298	sub swap_out {
1314	my ($self) = @_;	2299	my ($self) = @_;
1315		2300
		2301	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2302
		2303	return if $self->in_memory != cf::MAP_ACTIVE;
		2304	return if $self->{deny_save};
1316	return if $self->players;	2305	return if $self->players;
1317	return if $self->in_memory != cf::MAP_IN_MEMORY;
1318	return if $self->{deny_save};
1319		2306
		2307	# first deactivate the map and "unlink" it from the core
		2308	$self->deactivate;
		2309	$_->clear_links_to ($self) for values %cf::MAP;
		2310	$self->in_memory (cf::MAP_SWAPPED);
		2311
		2312	# then atomically save
1320	$self->save;	2313	$self->_save;
		2314
		2315	# then free the map
1321	$self->clear;	2316	$self->clear;
1322	$self->in_memory (cf::MAP_SWAPPED);
1323	}	2317	}
1324		2318
1325	sub reset_at {	2319	sub reset_at {
1326	my ($self) = @_;	2320	my ($self) = @_;
1327		2321
1328	# TODO: safety, remove and allow resettable per-player maps	2322	# TODO: safety, remove and allow resettable per-player maps
1329	return 1e99 if $self->{path}{user_rel};
1330	return 1e99 if $self->{deny_reset};	2323	return 1e99 if $self->{deny_reset};
1331		2324
1332	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2325	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1333	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2326	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1334		2327
…		…
1339	my ($self) = @_;	2332	my ($self) = @_;
1340		2333
1341	$self->reset_at <= $cf::RUNTIME	2334	$self->reset_at <= $cf::RUNTIME
1342	}	2335	}
1343		2336
1344	sub unlink_save {
1345	my ($self) = @_;
1346
1347	utf8::encode (my $save = $self->{path}->save_path);
1348	aioreq_pri 3; IO::AIO::aio_unlink $save;
1349	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1350	}
1351
1352	sub rename {
1353	my ($self, $new_path) = @_;
1354
1355	$self->unlink_save;
1356
1357	delete $cf::MAP{$self->path};
1358	$self->{path} = new cf::path $new_path;
1359	$self->path ($self->{path}->as_string);
1360	$cf::MAP{$self->path} = $self;
1361
1362	$self->save;
1363	}
1364
1365	sub reset {	2337	sub reset {
1366	my ($self) = @_;	2338	my ($self) = @_;
1367		2339
		2340	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2341
1368	return if $self->players;	2342	return if $self->players;
1369	return if $self->{path}{user_rel};#d#
1370		2343
1371	warn "resetting map ", $self->path;#d#	2344	cf::trace "resetting map ", $self->path, "\n";
		2345
		2346	$self->in_memory (cf::MAP_SWAPPED);
		2347
		2348	# need to save uniques path
		2349	unless ($self->{deny_save}) {
		2350	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2351
		2352	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2353	if $uniq;
		2354	}
1372		2355
1373	delete $cf::MAP{$self->path};	2356	delete $cf::MAP{$self->path};
1374		2357
		2358	$self->deactivate;
1375	$_->clear_links_to ($self) for values %cf::MAP;	2359	$_->clear_links_to ($self) for values %cf::MAP;
		2360	$self->clear;
1376		2361
1377	$self->unlink_save;	2362	$self->unlink_save;
1378	$self->destroy;	2363	$self->destroy;
1379	}	2364	}
1380		2365
1381	my $nuke_counter = "aaaa";	2366	my $nuke_counter = "aaaa";
1382		2367
1383	sub nuke {	2368	sub nuke {
1384	my ($self) = @_;	2369	my ($self) = @_;
1385		2370
		2371	{
		2372	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2373
		2374	delete $cf::MAP{$self->path};
		2375
		2376	$self->unlink_save;
		2377
		2378	bless $self, "cf::map::wrap";
		2379	delete $self->{deny_reset};
1386	$self->{deny_save} = 1;	2380	$self->{deny_save} = 1;
1387	$self->reset_timeout (1);	2381	$self->reset_timeout (1);
1388	$self->rename ("{nuke}/" . ($nuke_counter++));	2382	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2383
		2384	$cf::MAP{$self->path} = $self;
		2385	}
		2386
1389	$self->reset; # polite request, might not happen	2387	$self->reset; # polite request, might not happen
1390	}	2388	}
1391		2389
1392	sub customise_for {	2390	=item $maps = cf::map::tmp_maps
1393	my ($map, $ob) = @_;
1394		2391
1395	if ($map->per_player) {	2392	Returns an arrayref with all map paths of currently instantiated and saved
1396	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2393	maps. May block.
		2394
		2395	=cut
		2396
		2397	sub tmp_maps() {
1397	}	2398	[
1398		2399	map {
1399	$map	2400	utf8::decode $_;
		2401	/\.map$/
		2402	? normalise $_
		2403	: ()
		2404	} @{ aio_readdir $TMPDIR or [] }
		2405	]
1400	}	2406	}
1401		2407
1402	sub emergency_save {	2408	=item $maps = cf::map::random_maps
1403	local $cf::FREEZE = 1;
1404		2409
1405	warn "enter emergency map save\n";	2410	Returns an arrayref with all map paths of currently instantiated and saved
		2411	random maps. May block.
1406		2412
1407	cf::sync_job {	2413	=cut
1408	warn "begin emergency map save\n";	2414
1409	$_->save for values %cf::MAP;	2415	sub random_maps() {
		2416	[
		2417	map {
		2418	utf8::decode $_;
		2419	/\.map$/
		2420	? normalise "?random/$_"
		2421	: ()
		2422	} @{ aio_readdir $RANDOMDIR or [] }
		2423	]
		2424	}
		2425
		2426	=item cf::map::unique_maps
		2427
		2428	Returns an arrayref of paths of all shared maps that have
		2429	instantiated unique items. May block.
		2430
		2431	=cut
		2432
		2433	sub unique_maps() {
		2434	[
		2435	map {
		2436	utf8::decode $_;
		2437	s/\.map$//; # TODO future compatibility hack
		2438	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2439	? ()
		2440	: normalise $_
		2441	} @{ aio_readdir $UNIQUEDIR or [] }
		2442	]
		2443	}
		2444
		2445	=item cf::map::static_maps
		2446
		2447	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2448	file in the shared directory excluding F</styles> and F</editor>). May
		2449	block.
		2450
		2451	=cut
		2452
		2453	sub static_maps() {
		2454	my @dirs = "";
		2455	my @maps;
		2456
		2457	while (@dirs) {
		2458	my $dir = shift @dirs;
		2459
		2460	next if $dir eq "/styles" || $dir eq "/editor";
		2461
		2462	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2463	or return;
		2464
		2465	for (@$files) {
		2466	s/\.map$// or next;
		2467	utf8::decode $_;
		2468	push @maps, "$dir/$_";
		2469	}
		2470
		2471	push @dirs, map "$dir/$_", @$dirs;
1410	};	2472	}
1411		2473
1412	warn "end emergency map save\n";	2474	\@maps
		2475	}
		2476
		2477	=back
		2478
		2479	=head3 cf::object
		2480
		2481	=cut
		2482
		2483	package cf::object;
		2484
		2485	=over 4
		2486
		2487	=item $ob->inv_recursive
		2488
		2489	Returns the inventory of the object I<and> their inventories, recursively,
		2490	but I<not> the object itself.
		2491
		2492	=cut
		2493
		2494	sub inv_recursive_;
		2495	sub inv_recursive_ {
		2496	map { $_, inv_recursive_ $_->inv } @_
		2497	}
		2498
		2499	sub inv_recursive {
		2500	inv_recursive_ inv $_[0]
		2501	}
		2502
		2503	=item $ref = $ob->ref
		2504
		2505	Creates and returns a persistent reference to an object that can be stored as a string.
		2506
		2507	=item $ob = cf::object::deref ($refstring)
		2508
		2509	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2510	even if the object actually exists. May block.
		2511
		2512	=cut
		2513
		2514	sub deref {
		2515	my ($ref) = @_;
		2516
		2517	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2518	my ($uuid, $name) = ($1, $2);
		2519	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2520	or return;
		2521	$pl->ob->uuid eq $uuid
		2522	or return;
		2523
		2524	$pl->ob
		2525	} else {
		2526	warn "$ref: cannot resolve object reference\n";
		2527	undef
		2528	}
1413	}	2529	}
1414		2530
1415	package cf;	2531	package cf;
1416		2532
1417	=back	2533	=back
1418
1419		2534
1420	=head3 cf::object::player	2535	=head3 cf::object::player
1421		2536
1422	=over 4	2537	=over 4
1423		2538
…		…
1426	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2541	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1427	can be C<undef>. Does the right thing when the player is currently in a	2542	can be C<undef>. Does the right thing when the player is currently in a
1428	dialogue with the given NPC character.	2543	dialogue with the given NPC character.
1429		2544
1430	=cut	2545	=cut
		2546
		2547	our $SAY_CHANNEL = {
		2548	id => "say",
		2549	title => "Map",
		2550	reply => "say ",
		2551	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2552	};
		2553
		2554	our $CHAT_CHANNEL = {
		2555	id => "chat",
		2556	title => "Chat",
		2557	reply => "chat ",
		2558	tooltip => "Player chat and shouts, global to the server.",
		2559	};
1431		2560
1432	# rough implementation of a future "reply" method that works	2561	# rough implementation of a future "reply" method that works
1433	# with dialog boxes.	2562	# with dialog boxes.
1434	#TODO: the first argument must go, split into a $npc->reply_to ( method	2563	#TODO: the first argument must go, split into a $npc->reply_to ( method
1435	sub cf::object::player::reply($$$;$) {	2564	sub cf::object::player::reply($$$;$) {
…		…
1437		2566
1438	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2567	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1439		2568
1440	if ($self->{record_replies}) {	2569	if ($self->{record_replies}) {
1441	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2570	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2571
1442	} else {	2572	} else {
		2573	my $pl = $self->contr;
		2574
		2575	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2576	my $dialog = $pl->{npc_dialog};
		2577	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2578
		2579	} else {
1443	$msg = $npc->name . " says: $msg" if $npc;	2580	$msg = $npc->name . " says: $msg" if $npc;
1444	$self->message ($msg, $flags);	2581	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2582	}
1445	}	2583	}
		2584	}
		2585
		2586	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2587
		2588	=cut
		2589
		2590	sub cf::object::send_msg {
		2591	my $pl = shift->contr
		2592	or return;
		2593	$pl->send_msg (@_);
1446	}	2594	}
1447		2595
1448	=item $player_object->may ("access")	2596	=item $player_object->may ("access")
1449		2597
1450	Returns wether the given player is authorized to access resource "access"	2598	Returns wether the given player is authorized to access resource "access"
…		…
1463		2611
1464	=item $player_object->enter_link	2612	=item $player_object->enter_link
1465		2613
1466	Freezes the player and moves him/her to a special map (C<{link}>).	2614	Freezes the player and moves him/her to a special map (C<{link}>).
1467		2615
1468	The player should be reaosnably safe there for short amounts of time. You	2616	The player should be reasonably safe there for short amounts of time (e.g.
1469	I<MUST> call C<leave_link> as soon as possible, though.	2617	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2618	though, as the player cannot control the character while it is on the link
		2619	map.
		2620
		2621	Will never block.
1470		2622
1471	=item $player_object->leave_link ($map, $x, $y)	2623	=item $player_object->leave_link ($map, $x, $y)
1472		2624
1473	Moves the player out of the specila link map onto the given map. If the	2625	Moves the player out of the special C<{link}> map onto the specified
1474	map is not valid (or omitted), the player will be moved back to the	2626	map. If the map is not valid (or omitted), the player will be moved back
1475	location he/she was before the call to C<enter_link>, or, if that fails,	2627	to the location he/she was before the call to C<enter_link>, or, if that
1476	to the emergency map position.	2628	fails, to the emergency map position.
1477		2629
1478	Might block.	2630	Might block.
1479		2631
1480	=cut	2632	=cut
		2633
		2634	sub link_map {
		2635	unless ($LINK_MAP) {
		2636	$LINK_MAP = cf::map::find "{link}"
		2637	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2638	$LINK_MAP->load;
		2639	}
		2640
		2641	$LINK_MAP
		2642	}
1481		2643
1482	sub cf::object::player::enter_link {	2644	sub cf::object::player::enter_link {
1483	my ($self) = @_;	2645	my ($self) = @_;
1484		2646
1485	$self->deactivate_recursive;	2647	$self->deactivate_recursive;
1486		2648
1487	return if $self->map == $LINK_MAP;	2649	++$self->{_link_recursion};
		2650
		2651	return if UNIVERSAL::isa $self->map, "ext::map_link";
1488		2652
1489	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2653	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1490	if $self->map;	2654	if $self->map && $self->map->{path} ne "{link}";
1491		2655
1492	$self->enter_map ($LINK_MAP, 20, 20);	2656	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1493	}	2657	}
1494		2658
1495	sub cf::object::player::leave_link {	2659	sub cf::object::player::leave_link {
1496	my ($self, $map, $x, $y) = @_;	2660	my ($self, $map, $x, $y) = @_;
		2661
		2662	return unless $self->contr->active;
1497		2663
1498	my $link_pos = delete $self->{_link_pos};	2664	my $link_pos = delete $self->{_link_pos};
1499		2665
1500	unless ($map) {	2666	unless ($map) {
1501	# restore original map position	2667	# restore original map position
1502	($map, $x, $y) = @{ $link_pos || [] };	2668	($map, $x, $y) = @{ $link_pos || [] };
1503	$map = cf::map::find_map $map;	2669	$map = cf::map::find $map;
1504		2670
1505	unless ($map) {	2671	unless ($map) {
1506	($map, $x, $y) = @$EMERGENCY_POSITION;	2672	($map, $x, $y) = @$EMERGENCY_POSITION;
1507	$map = cf::map::find_map $map	2673	$map = cf::map::find $map
1508	or die "FATAL: cannot load emergency map\n";	2674	or die "FATAL: cannot load emergency map\n";
1509	}	2675	}
1510	}	2676	}
1511		2677
1512	($x, $y) = (-1, -1)	2678	($x, $y) = (-1, -1)
1513	unless (defined $x) && (defined $y);	2679	unless (defined $x) && (defined $y);
1514		2680
1515	# use -1 or undef as default coordinates, not 0, 0	2681	# use -1 or undef as default coordinates, not 0, 0
1516	($x, $y) = ($map->enter_x, $map->enter_y)	2682	($x, $y) = ($map->enter_x, $map->enter_y)
1517	if $x <=0 && $y <= 0;	2683	if $x <= 0 && $y <= 0;
1518		2684
1519	$map->load;	2685	$map->load;
		2686	$map->load_neighbours;
1520		2687
		2688	return unless $self->contr->active;
		2689
		2690	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2691	if ($self->enter_map ($map, $x, $y)) {
		2692	# entering was successful
		2693	delete $self->{_link_recursion};
		2694	# only activate afterwards, to support waiting in hooks
1521	$self->activate_recursive;	2695	$self->activate_recursive;
1522	$self->enter_map ($map, $x, $y);
1523	}
1524
1525	cf::player->attach (
1526	on_logout => sub {
1527	my ($pl) = @_;
1528
1529	# abort map switching before logout
1530	if ($pl->ob->{_link_pos}) {
1531	cf::sync_job {
1532	$pl->ob->leave_link
1533	};
1534	}
1535	},	2696	}
1536	on_login => sub {
1537	my ($pl) = @_;
1538		2697
1539	# try to abort aborted map switching on player login :)	2698	}
1540	# should happen only on crashes
1541	if ($pl->ob->{_link_pos}) {
1542	$pl->ob->enter_link;
1543	Coro::async {
1544	# we need this sleep as the login has a concurrent enter_exit running
1545	# and this sleep increases chances of the player not ending up in scorn
1546	Coro::Timer::sleep 1;
1547	$pl->ob->leave_link;
1548	};
1549	}
1550	},
1551	);
1552		2699
1553	=item $player_object->goto_map ($path, $x, $y)	2700	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1554		2701
1555	=cut	2702	Moves the player to the given map-path and coordinates by first freezing
		2703	her, loading and preparing them map, calling the provided $check callback
		2704	that has to return the map if sucecssful, and then unfreezes the player on
		2705	the new (success) or old (failed) map position. In either case, $done will
		2706	be called at the end of this process.
1556		2707
		2708	Note that $check will be called with a potentially non-loaded map, so if
		2709	it needs a loaded map it has to call C<< ->load >>.
		2710
		2711	=cut
		2712
		2713	our $GOTOGEN;
		2714
1557	sub cf::object::player::goto_map {	2715	sub cf::object::player::goto {
1558	my ($self, $path, $x, $y) = @_;	2716	my ($self, $path, $x, $y, $check, $done) = @_;
		2717
		2718	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2719	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2720	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2721	($path, $x, $y) = @$EMERGENCY_POSITION;
		2722	}
		2723
		2724	# do generation counting so two concurrent goto's will be executed in-order
		2725	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1559		2726
1560	$self->enter_link;	2727	$self->enter_link;
1561		2728
1562	(Coro::async {	2729	(async {
1563	$path = new cf::path $path;	2730	$Coro::current->{desc} = "player::goto $path $x $y";
1564		2731
1565	my $map = cf::map::find_map $path->as_string;	2732	# *tag paths override both path and x|y
		2733	if ($path =~ /^\*(.*)$/) {
		2734	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2735	my $ob = $obs[rand @obs];
		2736
		2737	# see if we actually can go there
		2738	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2739	$ob = $obs[rand @obs];
		2740	} else {
		2741	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2742	}
		2743	# else put us there anyways for now #d#
		2744
		2745	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2746	} else {
		2747	($path, $x, $y) = (undef, undef, undef);
		2748	}
		2749	}
		2750
		2751	my $map = eval {
		2752	my $map = defined $path ? cf::map::find $path : undef;
		2753
		2754	if ($map) {
1566	$map = $map->customise_for ($self) if $map;	2755	$map = $map->customise_for ($self);
1567		2756	$map = $check->($map, $x, $y, $self) if $check && $map;
1568	# warn "entering ", $map->path, " at ($x, $y)\n"	2757	} else {
1569	# if $map;
1570
1571	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2758	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2759	}
1572		2760
		2761	$map
		2762	};
		2763
		2764	if ($@) {
		2765	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2766	LOG llevError | logBacktrace, Carp::longmess $@;
		2767	}
		2768
		2769	if ($gen == $self->{_goto_generation}) {
		2770	delete $self->{_goto_generation};
1573	$self->leave_link ($map, $x, $y);	2771	$self->leave_link ($map, $x, $y);
		2772	}
		2773
		2774	$done->($self) if $done;
1574	})->prio (1);	2775	})->prio (1);
1575	}	2776	}
1576		2777
1577	=item $player_object->enter_exit ($exit_object)	2778	=item $player_object->enter_exit ($exit_object)
1578		2779
…		…
1580		2781
1581	sub parse_random_map_params {	2782	sub parse_random_map_params {
1582	my ($spec) = @_;	2783	my ($spec) = @_;
1583		2784
1584	my $rmp = { # defaults	2785	my $rmp = { # defaults
1585	xsize => 10,	2786	xsize => (cf::rndm 15, 40),
1586	ysize => 10,	2787	ysize => (cf::rndm 15, 40),
		2788	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2789	#layout => string,
1587	};	2790	};
1588		2791
1589	for (split /\n/, $spec) {	2792	for (split /\n/, $spec) {
1590	my ($k, $v) = split /\s+/, $_, 2;	2793	my ($k, $v) = split /\s+/, $_, 2;
1591		2794
…		…
1603	# that depends on the exit object	2806	# that depends on the exit object
1604		2807
1605	my $rmp = parse_random_map_params $exit->msg;	2808	my $rmp = parse_random_map_params $exit->msg;
1606		2809
1607	if ($exit->map) {	2810	if ($exit->map) {
1608	$rmp->{region} = $exit->map->region_name;	2811	$rmp->{region} = $exit->region->name;
1609	$rmp->{origin_map} = $exit->map->path;	2812	$rmp->{origin_map} = $exit->map->path;
1610	$rmp->{origin_x} = $exit->x;	2813	$rmp->{origin_x} = $exit->x;
1611	$rmp->{origin_y} = $exit->y;	2814	$rmp->{origin_y} = $exit->y;
		2815
		2816	$exit->map->touch;
1612	}	2817	}
1613		2818
1614	$rmp->{random_seed} ||= $exit->random_seed;	2819	$rmp->{random_seed} ||= $exit->random_seed;
1615		2820
1616	my $data = cf::to_json $rmp;	2821	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1617	my $md5 = Digest::MD5::md5_hex $data;	2822	my $md5 = Digest::MD5::md5_hex $data;
		2823	my $meta = "$RANDOMDIR/$md5.meta";
1618		2824
1619	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2825	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1620	aio_write $fh, 0, (length $data), $data, 0;	2826	aio_write $fh, 0, (length $data), $data, 0;
		2827	undef $fh;
		2828	aio_rename "$meta~", $meta;
1621		2829
		2830	my $slaying = "?random/$md5";
		2831
		2832	if ($exit->valid) {
1622	$exit->slaying ("?random/$md5");	2833	$exit->slaying ("?random/$md5");
1623	$exit->msg (undef);	2834	$exit->msg (undef);
		2835	}
1624	}	2836	}
1625	}	2837	}
1626		2838
1627	sub cf::object::player::enter_exit {	2839	sub cf::object::player::enter_exit {
1628	my ($self, $exit) = @_;	2840	my ($self, $exit) = @_;
1629		2841
1630	return unless $self->type == cf::PLAYER;	2842	return unless $self->type == cf::PLAYER;
1631		2843
1632	$self->enter_link;	2844	$self->enter_link;
1633		2845
1634	(Coro::async {	2846	(async {
		2847	$Coro::current->{desc} = "enter_exit";
		2848
1635	unless (eval {	2849	unless (eval {
		2850	$self->deactivate_recursive; # just to be sure
1636		2851
		2852	# random map handling
		2853	{
		2854	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2855
1637	prepare_random_map $exit	2856	prepare_random_map $exit
1638	if $exit->slaying eq "/!";	2857	if $exit->slaying eq "/!";
		2858	}
1639		2859
1640	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2860	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1641	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2861	my $x = $exit->stats->hp;
		2862	my $y = $exit->stats->sp;
1642		2863
		2864	$self->goto ($map, $x, $y);
		2865
		2866	# if exit is damned, update players death & WoR home-position
		2867	$self->contr->savebed ($map, $x, $y)
		2868	if $exit->flag (cf::FLAG_DAMNED);
		2869
1643	1;	2870	1
1644	}) {	2871	}) {
1645	$self->message ("Something went wrong deep within the crossfire server. "	2872	$self->message ("Something went wrong deep within the deliantra server. "
1646	. "I'll try to bring you back to the map you were before. "	2873	. "I'll try to bring you back to the map you were before. "
1647	. "Please report this to the dungeon master",	2874	. "Please report this to the dungeon master!",
1648	cf::NDI_UNIQUE | cf::NDI_RED);	2875	cf::NDI_UNIQUE | cf::NDI_RED);
1649		2876
1650	warn "ERROR in enter_exit: $@";	2877	error "ERROR in enter_exit: $@";
1651	$self->leave_link;	2878	$self->leave_link;
1652	}	2879	}
1653	})->prio (1);	2880	})->prio (1);
1654	}	2881	}
1655		2882
…		…
1666		2893
1667	sub cf::client::send_drawinfo {	2894	sub cf::client::send_drawinfo {
1668	my ($self, $text, $flags) = @_;	2895	my ($self, $text, $flags) = @_;
1669		2896
1670	utf8::encode $text;	2897	utf8::encode $text;
1671	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2898	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1672	}	2899	}
1673		2900
		2901	=item $client->send_big_packet ($pkt)
		2902
		2903	Like C<send_packet>, but tries to compress large packets, and fragments
		2904	them as required.
		2905
		2906	=cut
		2907
		2908	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2909
		2910	sub cf::client::send_big_packet {
		2911	my ($self, $pkt) = @_;
		2912
		2913	# try lzf for large packets
		2914	$pkt = "lzf " . Compress::LZF::compress $pkt
		2915	if 1024 <= length $pkt and $self->{can_lzf};
		2916
		2917	# split very large packets
		2918	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2919	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2920	$pkt = "frag";
		2921	}
		2922
		2923	$self->send_packet ($pkt);
		2924	}
		2925
		2926	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2927
		2928	Send a drawinfo or msg packet to the client, formatting the msg for the
		2929	client if neccessary. C<$type> should be a string identifying the type of
		2930	the message, with C<log> being the default. If C<$color> is negative, suppress
		2931	the message unless the client supports the msg packet.
		2932
		2933	=cut
		2934
		2935	# non-persistent channels (usually the info channel)
		2936	our %CHANNEL = (
		2937	"c/motd" => {
		2938	id => "infobox",
		2939	title => "MOTD",
		2940	reply => undef,
		2941	tooltip => "The message of the day",
		2942	},
		2943	"c/identify" => {
		2944	id => "infobox",
		2945	title => "Identify",
		2946	reply => undef,
		2947	tooltip => "Items recently identified",
		2948	},
		2949	"c/examine" => {
		2950	id => "infobox",
		2951	title => "Examine",
		2952	reply => undef,
		2953	tooltip => "Signs and other items you examined",
		2954	},
		2955	"c/shopinfo" => {
		2956	id => "infobox",
		2957	title => "Shop Info",
		2958	reply => undef,
		2959	tooltip => "What your bargaining skill tells you about the shop",
		2960	},
		2961	"c/book" => {
		2962	id => "infobox",
		2963	title => "Book",
		2964	reply => undef,
		2965	tooltip => "The contents of a note or book",
		2966	},
		2967	"c/lookat" => {
		2968	id => "infobox",
		2969	title => "Look",
		2970	reply => undef,
		2971	tooltip => "What you saw there",
		2972	},
		2973	"c/who" => {
		2974	id => "infobox",
		2975	title => "Players",
		2976	reply => undef,
		2977	tooltip => "Shows players who are currently online",
		2978	},
		2979	"c/body" => {
		2980	id => "infobox",
		2981	title => "Body Parts",
		2982	reply => undef,
		2983	tooltip => "Shows which body parts you posess and are available",
		2984	},
		2985	"c/statistics" => {
		2986	id => "infobox",
		2987	title => "Statistics",
		2988	reply => undef,
		2989	tooltip => "Shows your primary statistics",
		2990	},
		2991	"c/skills" => {
		2992	id => "infobox",
		2993	title => "Skills",
		2994	reply => undef,
		2995	tooltip => "Shows your experience per skill and item power",
		2996	},
		2997	"c/shopitems" => {
		2998	id => "infobox",
		2999	title => "Shop Items",
		3000	reply => undef,
		3001	tooltip => "Shows the items currently for sale in this shop",
		3002	},
		3003	"c/resistances" => {
		3004	id => "infobox",
		3005	title => "Resistances",
		3006	reply => undef,
		3007	tooltip => "Shows your resistances",
		3008	},
		3009	"c/pets" => {
		3010	id => "infobox",
		3011	title => "Pets",
		3012	reply => undef,
		3013	tooltip => "Shows information abotu your pets/a specific pet",
		3014	},
		3015	"c/perceiveself" => {
		3016	id => "infobox",
		3017	title => "Perceive Self",
		3018	reply => undef,
		3019	tooltip => "You gained detailed knowledge about yourself",
		3020	},
		3021	"c/uptime" => {
		3022	id => "infobox",
		3023	title => "Uptime",
		3024	reply => undef,
		3025	tooltip => "How long the server has been running since last restart",
		3026	},
		3027	"c/mapinfo" => {
		3028	id => "infobox",
		3029	title => "Map Info",
		3030	reply => undef,
		3031	tooltip => "Information related to the maps",
		3032	},
		3033	"c/party" => {
		3034	id => "party",
		3035	title => "Party",
		3036	reply => "gsay ",
		3037	tooltip => "Messages and chat related to your party",
		3038	},
		3039	"c/death" => {
		3040	id => "death",
		3041	title => "Death",
		3042	reply => undef,
		3043	tooltip => "Reason for and more info about your most recent death",
		3044	},
		3045	"c/say" => $SAY_CHANNEL,
		3046	"c/chat" => $CHAT_CHANNEL,
		3047	);
		3048
		3049	sub cf::client::send_msg {
		3050	my ($self, $channel, $msg, $color, @extra) = @_;
		3051
		3052	$msg = $self->pl->expand_cfpod ($msg)
		3053	unless $color & cf::NDI_VERBATIM;
		3054
		3055	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3056
		3057	# check predefined channels, for the benefit of C
		3058	if ($CHANNEL{$channel}) {
		3059	$channel = $CHANNEL{$channel};
		3060
		3061	$self->ext_msg (channel_info => $channel);
		3062	$channel = $channel->{id};
		3063
		3064	} elsif (ref $channel) {
		3065	# send meta info to client, if not yet sent
		3066	unless (exists $self->{channel}{$channel->{id}}) {
		3067	$self->{channel}{$channel->{id}} = $channel;
		3068	$self->ext_msg (channel_info => $channel);
		3069	}
		3070
		3071	$channel = $channel->{id};
		3072	}
		3073
		3074	return unless @extra || length $msg;
		3075
		3076	# default colour, mask it out
		3077	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3078	if $color & cf::NDI_DEF;
		3079
		3080	my $pkt = "msg "
		3081	. $self->{json_coder}->encode (
		3082	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3083	);
		3084
		3085	$self->send_big_packet ($pkt);
		3086	}
		3087
		3088	=item $client->ext_msg ($type, @msg)
		3089
		3090	Sends an ext event to the client.
		3091
		3092	=cut
		3093
		3094	sub cf::client::ext_msg($$@) {
		3095	my ($self, $type, @msg) = @_;
		3096
		3097	if ($self->extcmd == 2) {
		3098	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3099	} elsif ($self->extcmd == 1) { # TODO: remove
		3100	push @msg, msgtype => "event_$type";
		3101	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3102	}
		3103	}
		3104
		3105	=item $client->ext_reply ($msgid, @msg)
		3106
		3107	Sends an ext reply to the client.
		3108
		3109	=cut
		3110
		3111	sub cf::client::ext_reply($$@) {
		3112	my ($self, $id, @msg) = @_;
		3113
		3114	if ($self->extcmd == 2) {
		3115	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3116	} elsif ($self->extcmd == 1) {
		3117	#TODO: version 1, remove
		3118	unshift @msg, msgtype => "reply", msgid => $id;
		3119	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3120	}
		3121	}
1674		3122
1675	=item $success = $client->query ($flags, "text", \&cb)	3123	=item $success = $client->query ($flags, "text", \&cb)
1676		3124
1677	Queues a query to the client, calling the given callback with	3125	Queues a query to the client, calling the given callback with
1678	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3126	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1679	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3127	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1680		3128
1681	Queries can fail, so check the return code. Or don't, as queries will become	3129	Queries can fail, so check the return code. Or don't, as queries will
1682	reliable at some point in the future.	3130	become reliable at some point in the future.
1683		3131
1684	=cut	3132	=cut
1685		3133
1686	sub cf::client::query {	3134	sub cf::client::query {
1687	my ($self, $flags, $text, $cb) = @_;	3135	my ($self, $flags, $text, $cb) = @_;
…		…
1695	utf8::encode $text;	3143	utf8::encode $text;
1696	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3144	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1697		3145
1698	$self->send_packet ($self->{query_queue}[0][0])	3146	$self->send_packet ($self->{query_queue}[0][0])
1699	if @{ $self->{query_queue} } == 1;	3147	if @{ $self->{query_queue} } == 1;
		3148
		3149	1
1700	}	3150	}
1701		3151
1702	cf::client->attach (	3152	cf::client->attach (
		3153	on_connect => sub {
		3154	my ($ns) = @_;
		3155
		3156	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3157	},
1703	on_reply => sub {	3158	on_reply => sub {
1704	my ($ns, $msg) = @_;	3159	my ($ns, $msg) = @_;
1705		3160
1706	# this weird shuffling is so that direct followup queries	3161	# this weird shuffling is so that direct followup queries
1707	# get handled first	3162	# get handled first
1708	my $queue = delete $ns->{query_queue};	3163	my $queue = delete $ns->{query_queue}
		3164	or return; # be conservative, not sure how that can happen, but we saw a crash here
1709		3165
1710	(shift @$queue)->[1]->($msg);	3166	(shift @$queue)->[1]->($msg);
		3167	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1711		3168
1712	push @{ $ns->{query_queue} }, @$queue;	3169	push @{ $ns->{query_queue} }, @$queue;
1713		3170
1714	if (@{ $ns->{query_queue} } == @$queue) {	3171	if (@{ $ns->{query_queue} } == @$queue) {
1715	if (@$queue) {	3172	if (@$queue) {
…		…
1717	} else {	3174	} else {
1718	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3175	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1719	}	3176	}
1720	}	3177	}
1721	},	3178	},
		3179	on_exticmd => sub {
		3180	my ($ns, $buf) = @_;
		3181
		3182	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3183
		3184	if (ref $msg) {
		3185	my ($type, $reply, @payload) =
		3186	"ARRAY" eq ref $msg
		3187	? @$msg
		3188	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3189
		3190	my @reply;
		3191
		3192	if (my $cb = $EXTICMD{$type}) {
		3193	@reply = $cb->($ns, @payload);
		3194	}
		3195
		3196	$ns->ext_reply ($reply, @reply)
		3197	if $reply;
		3198
		3199	} else {
		3200	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3201	}
		3202
		3203	cf::override;
		3204	},
1722	);	3205	);
1723		3206
1724	=item $client->coro (\&cb)	3207	=item $client->async (\&cb)
1725		3208
1726	Create a new coroutine, running the specified callback. The coroutine will	3209	Create a new coroutine, running the specified callback. The coroutine will
1727	be automatically cancelled when the client gets destroyed (e.g. on logout,	3210	be automatically cancelled when the client gets destroyed (e.g. on logout,
1728	or loss of connection).	3211	or loss of connection).
1729		3212
1730	=cut	3213	=cut
1731		3214
1732	sub cf::client::coro {	3215	sub cf::client::async {
1733	my ($self, $cb) = @_;	3216	my ($self, $cb) = @_;
1734		3217
1735	my $coro; $coro = async {	3218	my $coro = &Coro::async ($cb);
1736	eval {
1737	$cb->();
1738	};
1739	warn $@ if $@;
1740	};
1741		3219
1742	$coro->on_destroy (sub {	3220	$coro->on_destroy (sub {
1743	delete $self->{_coro}{$coro+0};	3221	delete $self->{_coro}{$coro+0};
1744	});	3222	});
1745		3223
…		…
1747		3225
1748	$coro	3226	$coro
1749	}	3227	}
1750		3228
1751	cf::client->attach (	3229	cf::client->attach (
1752	on_destroy => sub {	3230	on_client_destroy => sub {
1753	my ($ns) = @_;	3231	my ($ns) = @_;
1754		3232
1755	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3233	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1756	},	3234	},
1757	);	3235	);
…		…
1772	our $safe = new Safe "safe";	3250	our $safe = new Safe "safe";
1773	our $safe_hole = new Safe::Hole;	3251	our $safe_hole = new Safe::Hole;
1774		3252
1775	$SIG{FPE} = 'IGNORE';	3253	$SIG{FPE} = 'IGNORE';
1776		3254
1777	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3255	$safe->permit_only (Opcode::opset qw(
		3256	:base_core :base_mem :base_orig :base_math :base_loop
		3257	grepstart grepwhile mapstart mapwhile
		3258	sort time
		3259	));
1778		3260
1779	# here we export the classes and methods available to script code	3261	# here we export the classes and methods available to script code
1780		3262
1781	=pod	3263	=pod
1782		3264
1783	The following fucntions and emthods are available within a safe environment:	3265	The following functions and methods are available within a safe environment:
1784		3266
1785	cf::object contr pay_amount pay_player map	3267	cf::object
		3268	contr pay_amount pay_player map x y force_find force_add destroy
		3269	insert remove name archname title slaying race decrease split
		3270	value
		3271
1786	cf::object::player player	3272	cf::object::player
1787	cf::player peaceful	3273	player
1788	cf::map trigger	3274
		3275	cf::player
		3276	peaceful
		3277
		3278	cf::map
		3279	trigger
1789		3280
1790	=cut	3281	=cut
1791		3282
1792	for (	3283	for (
1793	["cf::object" => qw(contr pay_amount pay_player map)],	3284	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3285	insert remove inv nrof name archname title slaying race
		3286	decrease split destroy change_exp value msg lore send_msg)],
1794	["cf::object::player" => qw(player)],	3287	["cf::object::player" => qw(player)],
1795	["cf::player" => qw(peaceful)],	3288	["cf::player" => qw(peaceful send_msg)],
1796	["cf::map" => qw(trigger)],	3289	["cf::map" => qw(trigger)],
1797	) {	3290	) {
1798	no strict 'refs';
1799	my ($pkg, @funs) = @$_;	3291	my ($pkg, @funs) = @$_;
1800	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3292	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1801	for @funs;	3293	for @funs;
1802	}	3294	}
1803		3295
…		…
1818		3310
1819	my $qcode = $code;	3311	my $qcode = $code;
1820	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3312	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1821	$qcode =~ s/\n/\\n/g;	3313	$qcode =~ s/\n/\\n/g;
1822		3314
		3315	%vars = (_dummy => 0) unless %vars;
		3316
		3317	my @res;
1823	local $_;	3318	local $_;
1824	local @safe::cf::_safe_eval_args = values %vars;
1825		3319
1826	my $eval =	3320	my $eval =
1827	"do {\n"	3321	"do {\n"
1828	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3322	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1829	. "#line 0 \"{$qcode}\"\n"	3323	. "#line 0 \"{$qcode}\"\n"
1830	. $code	3324	. $code
1831	. "\n}"	3325	. "\n}"
1832	;	3326	;
1833		3327
		3328	if ($CFG{safe_eval}) {
1834	sub_generation_inc;	3329	sub_generation_inc;
		3330	local @safe::cf::_safe_eval_args = values %vars;
1835	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3331	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1836	sub_generation_inc;	3332	sub_generation_inc;
		3333	} else {
		3334	local @cf::_safe_eval_args = values %vars;
		3335	@res = wantarray ? eval eval : scalar eval $eval;
		3336	}
1837		3337
1838	if ($@) {	3338	if ($@) {
1839	warn "$@";	3339	warn "$@",
1840	warn "while executing safe code '$code'\n";	3340	"while executing safe code '$code'\n",
1841	warn "with arguments " . (join " ", %vars) . "\n";	3341	"with arguments " . (join " ", %vars) . "\n";
1842	}	3342	}
1843		3343
1844	wantarray ? @res : $res[0]	3344	wantarray ? @res : $res[0]
1845	}	3345	}
1846		3346
…		…
1860	=cut	3360	=cut
1861		3361
1862	sub register_script_function {	3362	sub register_script_function {
1863	my ($fun, $cb) = @_;	3363	my ($fun, $cb) = @_;
1864		3364
1865	no strict 'refs';	3365	$fun = "safe::$fun" if $CFG{safe_eval};
1866	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3366	*$fun = $safe_hole->wrap ($cb);
1867	}	3367	}
1868		3368
1869	=back	3369	=back
1870		3370
1871	=cut	3371	=cut
1872		3372
1873	#############################################################################	3373	#############################################################################
		3374	# the server's init and main functions
1874		3375
1875	=head2 EXTENSION DATABASE SUPPORT	3376	sub load_facedata($) {
		3377	my ($path) = @_;
1876		3378
1877	Crossfire maintains a very simple database for extension use. It can	3379	# HACK to clear player env face cache, we need some signal framework
1878	currently store anything that can be serialised using Storable, which	3380	# for this (global event?)
1879	excludes objects.	3381	%ext::player_env::MUSIC_FACE_CACHE = ();
1880		3382
1881	The parameter C<$family> should best start with the name of the extension	3383	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1882	using it, it should be unique.
1883		3384
1884	=over 4	3385	trace "loading facedata from $path\n";
1885		3386
1886	=item $hashref = cf::db_get $family	3387	0 < aio_load $path, my $facedata
		3388	or die "$path: $!";
1887		3389
1888	Return a hashref for use by the extension C<$family>, which can be	3390	$facedata = Coro::Storable::thaw $facedata;
1889	modified. After modifications, you have to call C<cf::db_dirty> or
1890	C<cf::db_sync>.
1891		3391
1892	=item $value = cf::db_get $family => $key	3392	$facedata->{version} == 2
		3393	or cf::cleanup "$path: version mismatch, cannot proceed.";
1893		3394
1894	Returns a single value from the database	3395	# patch in the exptable
1895		3396	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1896	=item cf::db_put $family => $hashref	3397	$facedata->{resource}{"res/exp_table"} = {
1897		3398	type => FT_RSRC,
1898	Stores the given family hashref into the database. Updates are delayed, if	3399	data => $exp_table,
1899	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3400	hash => (Digest::MD5::md5 $exp_table),
1900
1901	=item cf::db_put $family => $key => $value
1902
1903	Stores the given C<$value> in the family hash. Updates are delayed, if you
1904	want the data to be synced to disk immediately, use C<cf::db_sync>.
1905
1906	=item cf::db_dirty
1907
1908	Marks the database as dirty, to be updated at a later time.
1909
1910	=item cf::db_sync
1911
1912	Immediately write the database to disk I<if it is dirty>.
1913
1914	=cut
1915
1916	our $DB;
1917
1918	{
1919	my $path = cf::localdir . "/database.pst";
1920
1921	sub db_load() {
1922	$DB = stat $path ? Storable::retrieve $path : { };
1923	}
1924
1925	my $pid;
1926
1927	sub db_save() {
1928	waitpid $pid, 0 if $pid;
1929	if (0 == ($pid = fork)) {
1930	$DB->{_meta}{version} = 1;
1931	Storable::nstore $DB, "$path~";
1932	rename "$path~", $path;
1933	cf::_exit 0 if defined $pid;
1934	}
1935	}
1936
1937	my $dirty;
1938
1939	sub db_sync() {
1940	db_save if $dirty;
1941	undef $dirty;
1942	}
1943
1944	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1945	db_sync;
1946	});	3401	};
		3402	cf::cede_to_tick;
1947		3403
1948	sub db_dirty() {
1949	$dirty = 1;
1950	$idle->start;
1951	}	3404	{
		3405	my $faces = $facedata->{faceinfo};
1952		3406
1953	sub db_get($;$) {	3407	while (my ($face, $info) = each %$faces) {
1954	@_ >= 2	3408	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1955	? $DB->{$_[0]}{$_[1]}
1956	: ($DB->{$_[0]} ||= { })
1957	}
1958		3409
1959	sub db_put($$;$) {	3410	cf::face::set_visibility $idx, $info->{visibility};
1960	if (@_ >= 3) {	3411	cf::face::set_magicmap $idx, $info->{magicmap};
1961	$DB->{$_[0]}{$_[1]} = $_[2];	3412	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1962	} else {	3413	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1963	$DB->{$_[0]} = $_[1];
1964	}
1965	db_dirty;
1966	}
1967		3414
1968	cf::global->attach (	3415	cf::cede_to_tick;
1969	prio => 10000,
1970	on_cleanup => sub {
1971	db_sync;
1972	},	3416	}
1973	);
1974	}
1975		3417
1976	#############################################################################	3418	while (my ($face, $info) = each %$faces) {
1977	# the server's main()	3419	next unless $info->{smooth};
1978		3420
1979	sub cfg_load {	3421	my $idx = cf::face::find $face
1980	open my $fh, "<:utf8", cf::confdir . "/config"	3422	or next;
1981	or return;
1982		3423
1983	local $/;	3424	if (my $smooth = cf::face::find $info->{smooth}) {
		3425	cf::face::set_smooth $idx, $smooth;
		3426	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3427	} else {
		3428	error "smooth face '$info->{smooth}' not found for face '$face'";
		3429	}
		3430
		3431	cf::cede_to_tick;
		3432	}
		3433	}
		3434
		3435	{
		3436	my $anims = $facedata->{animinfo};
		3437
		3438	while (my ($anim, $info) = each %$anims) {
		3439	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3440	cf::cede_to_tick;
		3441	}
		3442
		3443	cf::anim::invalidate_all; # d'oh
		3444	}
		3445
		3446	{
		3447	my $res = $facedata->{resource};
		3448
		3449	while (my ($name, $info) = each %$res) {
		3450	if (defined $info->{type}) {
		3451	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3452
		3453	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3454	cf::face::set_type $idx, $info->{type};
		3455	} else {
		3456	$RESOURCE{$name} = $info; # unused
		3457	}
		3458
		3459	cf::cede_to_tick;
		3460	}
		3461	}
		3462
		3463	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3464
		3465	1
		3466	}
		3467
		3468	register_exticmd fx_want => sub {
		3469	my ($ns, $want) = @_;
		3470
		3471	while (my ($k, $v) = each %$want) {
		3472	$ns->fx_want ($k, $v);
		3473	}
		3474	};
		3475
		3476	sub load_resource_file($) {
		3477	my $guard = lock_acquire "load_resource_file";
		3478
		3479	my $status = load_resource_file_ $_[0];
		3480	get_slot 0.1, 100;
		3481	cf::arch::commit_load;
		3482
		3483	$status
		3484	}
		3485
		3486	sub reload_regions {
		3487	# HACK to clear player env face cache, we need some signal framework
		3488	# for this (global event?)
		3489	%ext::player_env::MUSIC_FACE_CACHE = ();
		3490
		3491	load_resource_file "$MAPDIR/regions"
		3492	or die "unable to load regions file\n";
		3493
		3494	for (cf::region::list) {
		3495	$_->{match} = qr/$_->{match}/
		3496	if exists $_->{match};
		3497	}
		3498	}
		3499
		3500	sub reload_facedata {
		3501	load_facedata "$DATADIR/facedata"
		3502	or die "unable to load facedata\n";
		3503	}
		3504
		3505	sub reload_archetypes {
		3506	load_resource_file "$DATADIR/archetypes"
		3507	or die "unable to load archetypes\n";
		3508	}
		3509
		3510	sub reload_treasures {
		3511	load_resource_file "$DATADIR/treasures"
		3512	or die "unable to load treasurelists\n";
		3513	}
		3514
		3515	sub reload_sound {
		3516	trace "loading sound config from $DATADIR/sound\n";
		3517
		3518	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3519	or die "$DATADIR/sound $!";
		3520
		3521	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3522
		3523	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3524	my $sound = $soundconf->{compat}[$_]
		3525	or next;
		3526
		3527	my $face = cf::face::find "sound/$sound->[1]";
		3528	cf::sound::set $sound->[0] => $face;
		3529	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3530	}
		3531
		3532	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3533	my $face = cf::face::find "sound/$v";
		3534	cf::sound::set $k => $face;
		3535	}
		3536	}
		3537
		3538	sub reload_resources {
		3539	trace "reloading resource files...\n";
		3540
		3541	reload_exp_table;
		3542	reload_materials;
		3543	reload_facedata;
		3544	reload_sound;
		3545	reload_archetypes;
		3546	reload_regions;
		3547	reload_treasures;
		3548
		3549	trace "finished reloading resource files\n";
		3550	}
		3551
		3552	sub reload_config {
		3553	trace "reloading config file...\n";
		3554
		3555	0 < aio_load "$CONFDIR/config", my $config
		3556	or die "$CONFDIR/config: $!";
		3557
		3558	utf8::decode $config;
		3559
		3560	cf::get_slot 0.1, 10, "reload_config"; # yaml might be slow...
1984	*CFG = YAML::Syck::Load <$fh>;	3561	*CFG = YAML::XS::Load $config;
		3562
		3563	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3564
		3565	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3566	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3567
		3568	if (exists $CFG{mlockall}) {
		3569	eval {
		3570	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3571	and die "WARNING: m(un)lockall failed: $!\n";
		3572	};
		3573	warn $@ if $@;
		3574	}
		3575	}
		3576
		3577	sub pidfile() {
		3578	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3579	or die "$PIDFILE: $!";
		3580	flock $fh, &Fcntl::LOCK_EX
		3581	or die "$PIDFILE: flock: $!";
		3582	$fh
		3583	}
		3584
		3585	# make sure only one server instance is running at any one time
		3586	sub atomic {
		3587	my $fh = pidfile;
		3588
		3589	my $pid = <$fh>;
		3590	kill 9, $pid if $pid > 0;
		3591
		3592	seek $fh, 0, 0;
		3593	print $fh $$;
		3594	}
		3595
		3596	sub main_loop {
		3597	trace "EV::loop starting\n";
		3598	if (1) {
		3599	EV::loop;
		3600	}
		3601	trace "EV::loop returned\n";
		3602	goto &main_loop unless $REALLY_UNLOOP;
1985	}	3603	}
1986		3604
1987	sub main {	3605	sub main {
		3606	cf::init_globals; # initialise logging
		3607
		3608	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3609	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3610	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3611	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3612
		3613	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3614
1988	# we must not ever block the main coroutine	3615	# we must not ever block the main coroutine
1989	local $Coro::idle = sub {	3616	local $Coro::idle = sub {
1990	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3617	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1991	(Coro::unblock_sub {	3618	(async {
1992	Event::one_event;	3619	$Coro::current->{desc} = "IDLE BUG HANDLER";
1993	})->();	3620	EV::loop EV::LOOP_ONESHOT;
		3621	})->prio (Coro::PRIO_MAX);
1994	};	3622	};
1995		3623
1996	cfg_load;	3624	evthread_start IO::AIO::poll_fileno;
1997	db_load;	3625
		3626	cf::sync_job {
		3627	cf::incloader::init ();
		3628
		3629	cf::init_anim;
		3630	cf::init_attackmess;
		3631	cf::init_dynamic;
		3632
		3633	cf::load_settings;
		3634
		3635	reload_resources;
		3636	reload_config;
		3637	db_init;
		3638
		3639	cf::init_uuid;
		3640	cf::init_signals;
		3641	cf::init_skills;
		3642
		3643	cf::init_beforeplay;
		3644
		3645	atomic;
		3646
1998	load_extensions;	3647	load_extensions;
1999	Event::loop;	3648
		3649	utime time, time, $RUNTIMEFILE;
		3650
		3651	# no (long-running) fork's whatsoever before this point(!)
		3652	use POSIX ();
		3653	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3654
		3655	(pop @POST_INIT)->(0) while @POST_INIT;
		3656	};
		3657
		3658	cf::object::thawer::errors_are_fatal 0;
		3659	info "parse errors in files are no longer fatal from this point on.\n";
		3660
		3661	my $free_main; $free_main = EV::idle sub {
		3662	undef $free_main;
		3663	undef &main; # free gobs of memory :)
		3664	};
		3665
		3666	goto &main_loop;
2000	}	3667	}
2001		3668
2002	#############################################################################	3669	#############################################################################
2003	# initialisation	3670	# initialisation and cleanup
2004		3671
		3672	# install some emergency cleanup handlers
		3673	BEGIN {
		3674	our %SIGWATCHER = ();
		3675	for my $signal (qw(INT HUP TERM)) {
		3676	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3677	cf::cleanup "SIG$signal";
		3678	};
		3679	}
		3680	}
		3681
		3682	sub write_runtime_sync {
		3683	my $t0 = AE::time;
		3684
		3685	# first touch the runtime file to show we are still running:
		3686	# the fsync below can take a very very long time.
		3687
		3688	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3689
		3690	my $guard = cf::lock_acquire "write_runtime";
		3691
		3692	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3693	or return;
		3694
		3695	my $value = $cf::RUNTIME + 90 + 10;
		3696	# 10 is the runtime save interval, for a monotonic clock
		3697	# 60 allows for the watchdog to kill the server.
		3698
		3699	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3700	and return;
		3701
		3702	# always fsync - this file is important
		3703	aio_fsync $fh
		3704	and return;
		3705
		3706	# touch it again to show we are up-to-date
		3707	aio_utime $fh, undef, undef;
		3708
		3709	close $fh
		3710	or return;
		3711
		3712	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3713	and return;
		3714
		3715	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3716
		3717	1
		3718	}
		3719
		3720	our $uuid_lock;
		3721	our $uuid_skip;
		3722
		3723	sub write_uuid_sync($) {
		3724	$uuid_skip ||= $_[0];
		3725
		3726	return if $uuid_lock;
		3727	local $uuid_lock = 1;
		3728
		3729	my $uuid = "$LOCALDIR/uuid";
		3730
		3731	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3732	or return;
		3733
		3734	my $value = uuid_seq uuid_cur;
		3735
		3736	unless ($value) {
		3737	info "cowardly refusing to write zero uuid value!\n";
		3738	return;
		3739	}
		3740
		3741	my $value = uuid_str $value + $uuid_skip;
		3742	$uuid_skip = 0;
		3743
		3744	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3745	and return;
		3746
		3747	# always fsync - this file is important
		3748	aio_fsync $fh
		3749	and return;
		3750
		3751	close $fh
		3752	or return;
		3753
		3754	aio_rename "$uuid~", $uuid
		3755	and return;
		3756
		3757	trace "uuid file written ($value).\n";
		3758
		3759	1
		3760
		3761	}
		3762
		3763	sub write_uuid($$) {
		3764	my ($skip, $sync) = @_;
		3765
		3766	$sync ? write_uuid_sync $skip
		3767	: async { write_uuid_sync $skip };
		3768	}
		3769
		3770	sub emergency_save() {
		3771	my $freeze_guard = cf::freeze_mainloop;
		3772
		3773	info "emergency_perl_save: enter\n";
		3774
		3775	# this is a trade-off: we want to be very quick here, so
		3776	# save all maps without fsync, and later call a global sync
		3777	# (which in turn might be very very slow)
		3778	local $USE_FSYNC = 0;
		3779
		3780	cf::sync_job {
		3781	cf::write_runtime_sync; # external watchdog should not bark
		3782
		3783	# use a peculiar iteration method to avoid tripping on perl
		3784	# refcount bugs in for. also avoids problems with players
		3785	# and maps saved/destroyed asynchronously.
		3786	info "emergency_perl_save: begin player save\n";
		3787	for my $login (keys %cf::PLAYER) {
		3788	my $pl = $cf::PLAYER{$login} or next;
		3789	$pl->valid or next;
		3790	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3791	$pl->save;
		3792	}
		3793	info "emergency_perl_save: end player save\n";
		3794
		3795	cf::write_runtime_sync; # external watchdog should not bark
		3796
		3797	info "emergency_perl_save: begin map save\n";
		3798	for my $path (keys %cf::MAP) {
		3799	my $map = $cf::MAP{$path} or next;
		3800	$map->valid or next;
		3801	$map->save;
		3802	}
		3803	info "emergency_perl_save: end map save\n";
		3804
		3805	cf::write_runtime_sync; # external watchdog should not bark
		3806
		3807	info "emergency_perl_save: begin database checkpoint\n";
		3808	BDB::db_env_txn_checkpoint $DB_ENV;
		3809	info "emergency_perl_save: end database checkpoint\n";
		3810
		3811	info "emergency_perl_save: begin write uuid\n";
		3812	write_uuid_sync 1;
		3813	info "emergency_perl_save: end write uuid\n";
		3814
		3815	cf::write_runtime_sync; # external watchdog should not bark
		3816
		3817	trace "emergency_perl_save: syncing database to disk";
		3818	BDB::db_env_txn_checkpoint $DB_ENV;
		3819
		3820	info "emergency_perl_save: starting sync\n";
		3821	IO::AIO::aio_sync sub {
		3822	info "emergency_perl_save: finished sync\n";
		3823	};
		3824
		3825	cf::write_runtime_sync; # external watchdog should not bark
		3826
		3827	trace "emergency_perl_save: flushing outstanding aio requests";
		3828	while (IO::AIO::nreqs || BDB::nreqs) {
		3829	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3830	}
		3831
		3832	cf::write_runtime_sync; # external watchdog should not bark
		3833	};
		3834
		3835	info "emergency_perl_save: leave\n";
		3836	}
		3837
		3838	sub post_cleanup {
		3839	my ($make_core) = @_;
		3840
		3841	IO::AIO::flush;
		3842
		3843	error Carp::longmess "post_cleanup backtrace"
		3844	if $make_core;
		3845
		3846	my $fh = pidfile;
		3847	unlink $PIDFILE if <$fh> == $$;
		3848	}
		3849
		3850	# a safer delete_package, copied from Symbol
		3851	sub clear_package($) {
		3852	my $pkg = shift;
		3853
		3854	# expand to full symbol table name if needed
		3855	unless ($pkg =~ /^main::.*::$/) {
		3856	$pkg = "main$pkg" if $pkg =~ /^::/;
		3857	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3858	$pkg .= '::' unless $pkg =~ /::$/;
		3859	}
		3860
		3861	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3862	my $stem_symtab = *{$stem}{HASH};
		3863
		3864	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3865	or return;
		3866
		3867	# clear all symbols
		3868	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3869	for my $name (keys %$leaf_symtab) {
		3870	_gv_clear *{"$pkg$name"};
		3871	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3872	}
		3873	}
		3874
2005	sub reload() {	3875	sub do_reload_perl() {
2006	# can/must only be called in main	3876	# can/must only be called in main
2007	if ($Coro::current != $Coro::main) {	3877	unless (in_main) {
2008	warn "can only reload from main coroutine\n";	3878	error "can only reload from main coroutine";
2009	return;	3879	return;
2010	}	3880	}
2011		3881
		3882	return if $RELOAD++;
		3883
		3884	my $t1 = AE::time;
		3885
		3886	while ($RELOAD) {
		3887	cf::get_slot 0.1, -1, "reload_perl";
2012	warn "reloading...";	3888	info "reloading...";
2013		3889
2014	local $FREEZE = 1;	3890	trace "entering sync_job";
		3891
		3892	cf::sync_job {
2015	cf::emergency_save;	3893	#cf::emergency_save;
2016		3894
2017	eval {
2018	# if anything goes wrong in here, we should simply crash as we already saved
2019
2020	# cancel all watchers
2021	for (Event::all_watchers) {
2022	$_->cancel if $_->data & WF_AUTOCANCEL;
2023	}
2024
2025	# cancel all extension coros	3895	trace "cancelling all extension coros";
2026	$_->cancel for values %EXT_CORO;	3896	$_->cancel for values %EXT_CORO;
2027	%EXT_CORO = ();	3897	%EXT_CORO = ();
2028		3898
2029	# unload all extensions	3899	trace "removing commands";
2030	for (@exts) {	3900	%COMMAND = ();
2031	warn "unloading <$_>";
2032	unload_extension $_;
2033	}
2034		3901
2035	# unload all modules loaded from $LIBDIR	3902	trace "removing ext/exti commands";
2036	while (my ($k, $v) = each %INC) {	3903	%EXTCMD = ();
2037	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3904	%EXTICMD = ();
2038		3905
2039	warn "removing <$k>";	3906	trace "unloading/nuking all extensions";
2040	delete $INC{$k};	3907	for my $pkg (@EXTS) {
		3908	trace "... unloading $pkg";
2041		3909
2042	$k =~ s/\.pm$//;
2043	$k =~ s/\//::/g;
2044
2045	if (my $cb = $k->can ("unload_module")) {	3910	if (my $cb = $pkg->can ("unload")) {
		3911	eval {
2046	$cb->();	3912	$cb->($pkg);
		3913	1
		3914	} or error "$pkg unloaded, but with errors: $@";
		3915	}
		3916
		3917	trace "... clearing $pkg";
		3918	clear_package $pkg;
2047	}	3919	}
2048		3920
2049	Symbol::delete_package $k;	3921	trace "unloading all perl modules loaded from $LIBDIR";
		3922	while (my ($k, $v) = each %INC) {
		3923	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3924
		3925	trace "... unloading $k";
		3926	delete $INC{$k};
		3927
		3928	$k =~ s/\.pm$//;
		3929	$k =~ s/\//::/g;
		3930
		3931	if (my $cb = $k->can ("unload_module")) {
		3932	$cb->();
		3933	}
		3934
		3935	clear_package $k;
2050	}	3936	}
2051		3937
2052	# sync database to disk
2053	cf::db_sync;
2054	IO::AIO::flush;
2055
2056	# get rid of safe::, as good as possible	3938	trace "getting rid of safe::, as good as possible";
2057	Symbol::delete_package "safe::$_"	3939	clear_package "safe::$_"
2058	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3940	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2059		3941
2060	# remove register_script_function callbacks	3942	trace "unloading cf.pm \"a bit\"";
2061	# TODO
2062
2063	# unload cf.pm "a bit"
2064	delete $INC{"cf.pm"};	3943	delete $INC{"cf.pm"};
		3944	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2065		3945
2066	# don't, removes xs symbols, too,	3946	# don't, removes xs symbols, too,
2067	# and global variables created in xs	3947	# and global variables created in xs
2068	#Symbol::delete_package __PACKAGE__;	3948	#clear_package __PACKAGE__;
2069		3949
2070	# reload cf.pm	3950	info "unload completed, starting to reload now";
		3951
2071	warn "reloading cf.pm";	3952	trace "reloading cf.pm";
2072	require cf;	3953	require cf;
2073	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3954	cf::_connect_to_perl_1;
2074		3955
2075	# load config and database again	3956	trace "loading config and database again";
2076	cf::cfg_load;	3957	cf::reload_config;
2077	cf::db_load;
2078		3958
2079	# load extensions
2080	warn "load extensions";	3959	trace "loading extensions";
2081	cf::load_extensions;	3960	cf::load_extensions;
2082		3961
2083	# reattach attachments to objects	3962	if ($REATTACH_ON_RELOAD) {
2084	warn "reattach";	3963	trace "reattaching attachments to objects/players";
2085	_global_reattach;	3964	_global_reattach; # objects, sockets
		3965	trace "reattaching attachments to maps";
		3966	reattach $_ for values %MAP;
		3967	trace "reattaching attachments to players";
		3968	reattach $_ for values %PLAYER;
		3969	}
		3970
		3971	trace "running post_init jobs";
		3972	(pop @POST_INIT)->(1) while @POST_INIT;
		3973
		3974	trace "leaving sync_job";
		3975
		3976	1
		3977	} or do {
		3978	error $@;
		3979	cf::cleanup "error while reloading, exiting.";
		3980	};
		3981
		3982	info "reloaded";
		3983	--$RELOAD;
		3984	}
		3985
		3986	$t1 = AE::time - $t1;
		3987	info "reload completed in ${t1}s\n";
		3988	};
		3989
		3990	our $RELOAD_WATCHER; # used only during reload
		3991
		3992	sub reload_perl() {
		3993	# doing reload synchronously and two reloads happen back-to-back,
		3994	# coro crashes during coro_state_free->destroy here.
		3995
		3996	$RELOAD_WATCHER ||= cf::async {
		3997	Coro::AIO::aio_wait cache_extensions;
		3998
		3999	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4000	do_reload_perl;
		4001	undef $RELOAD_WATCHER;
		4002	};
2086	};	4003	};
2087
2088	if ($@) {
2089	warn $@;
2090	warn "error while reloading, exiting.";
2091	exit 1;
2092	}
2093
2094	warn "reloaded successfully";
2095	};
2096
2097	#############################################################################
2098
2099	unless ($LINK_MAP) {
2100	$LINK_MAP = cf::map::new;
2101
2102	$LINK_MAP->width (41);
2103	$LINK_MAP->height (41);
2104	$LINK_MAP->alloc;
2105	$LINK_MAP->path ("{link}");
2106	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2107	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2108
2109	# dirty hack because... archetypes are not yet loaded
2110	Event->timer (
2111	after => 2,
2112	cb => sub {
2113	$_[0]->w->cancel;
2114
2115	# provide some exits "home"
2116	my $exit = cf::object::new "exit";
2117
2118	$exit->slaying ($EMERGENCY_POSITION->[0]);
2119	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2120	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2121
2122	$LINK_MAP->insert ($exit->clone, 19, 19);
2123	$LINK_MAP->insert ($exit->clone, 19, 20);
2124	$LINK_MAP->insert ($exit->clone, 19, 21);
2125	$LINK_MAP->insert ($exit->clone, 20, 19);
2126	$LINK_MAP->insert ($exit->clone, 20, 21);
2127	$LINK_MAP->insert ($exit->clone, 21, 19);
2128	$LINK_MAP->insert ($exit->clone, 21, 20);
2129	$LINK_MAP->insert ($exit->clone, 21, 21);
2130
2131	$exit->destroy;
2132	});
2133
2134	$LINK_MAP->{deny_save} = 1;
2135	$LINK_MAP->{deny_reset} = 1;
2136
2137	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2138	}	4004	}
2139
2140	register "<global>", __PACKAGE__;
2141		4005
2142	register_command "reload" => sub {	4006	register_command "reload" => sub {
2143	my ($who, $arg) = @_;	4007	my ($who, $arg) = @_;
2144		4008
2145	if ($who->flag (FLAG_WIZ)) {	4009	if ($who->flag (FLAG_WIZ)) {
2146	$who->message ("start of reload.");
2147	reload;
2148	$who->message ("end of reload.");	4010	$who->message ("reloading server.");
		4011	async {
		4012	$Coro::current->{desc} = "perl_reload";
		4013	reload_perl;
		4014	};
2149	}	4015	}
2150	};	4016	};
2151		4017
2152	unshift @INC, $LIBDIR;	4018	#############################################################################
2153		4019
2154	$TICK_WATCHER = Event->timer (	4020	my $bug_warning = 0;
2155	reentrant => 0,	4021
2156	prio => 0,	4022	our @WAIT_FOR_TICK;
2157	at => $NEXT_TICK || $TICK,	4023	our @WAIT_FOR_TICK_BEGIN;
2158	data => WF_AUTOCANCEL,	4024
2159	cb => sub {	4025	sub wait_for_tick() {
2160	unless ($FREEZE) {	4026	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4027
		4028	my $signal = new Coro::Signal;
		4029	push @WAIT_FOR_TICK, $signal;
		4030	$signal->wait;
		4031	}
		4032
		4033	sub wait_for_tick_begin() {
		4034	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4035
		4036	my $signal = new Coro::Signal;
		4037	push @WAIT_FOR_TICK_BEGIN, $signal;
		4038	$signal->wait;
		4039	}
		4040
		4041	sub tick {
		4042	if ($Coro::current != $Coro::main) {
		4043	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4044	unless ++$bug_warning > 10;
		4045	return;
		4046	}
		4047
2161	cf::server_tick; # one server iteration	4048	cf::server_tick; # one server iteration
2162	$RUNTIME += $TICK;
2163	}
2164		4049
2165	$NEXT_TICK += $TICK;	4050	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2166		4051
2167	# if we are delayed by four ticks or more, skip them all	4052	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2168	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4053	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2169		4054	Coro::async_pool {
2170	$TICK_WATCHER->at ($NEXT_TICK);	4055	$Coro::current->{desc} = "runtime saver";
2171	$TICK_WATCHER->start;
2172	},
2173	);
2174
2175	IO::AIO::max_poll_time $TICK * 0.2;
2176
2177	Event->io (
2178	fd => IO::AIO::poll_fileno,
2179	poll => 'r',
2180	prio => 5,
2181	data => WF_AUTOCANCEL,
2182	cb => \&IO::AIO::poll_cb,
2183	);
2184
2185	Event->timer (
2186	data => WF_AUTOCANCEL,
2187	after => 0,
2188	interval => 10,
2189	cb => sub {
2190	(Coro::unblock_sub {
2191	write_runtime	4056	write_runtime_sync
2192	or warn "ERROR: unable to write runtime file: $!";	4057	or error "ERROR: unable to write runtime file: $!";
2193	})->();	4058	};
2194	},	4059	}
2195	);	4060
		4061	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4062	$sig->send;
		4063	}
		4064	while (my $sig = shift @WAIT_FOR_TICK) {
		4065	$sig->send;
		4066	}
		4067
		4068	$LOAD = ($NOW - $TICK_START) / $TICK;
		4069	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4070
		4071	if (0) {
		4072	if ($NEXT_TICK) {
		4073	my $jitter = $TICK_START - $NEXT_TICK;
		4074	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4075	debug "jitter $JITTER\n";#d#
		4076	}
		4077	}
		4078	}
		4079
		4080	{
		4081	# configure BDB
		4082
		4083	BDB::min_parallel 16;
		4084	BDB::max_poll_reqs $TICK * 0.1;
		4085	$AnyEvent::BDB::WATCHER->priority (1);
		4086
		4087	unless ($DB_ENV) {
		4088	$DB_ENV = BDB::db_env_create;
		4089	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4090	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4091	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4092	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4093	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4094
		4095	cf::sync_job {
		4096	eval {
		4097	BDB::db_env_open
		4098	$DB_ENV,
		4099	$BDBDIR,
		4100	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4101	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4102	0666;
		4103
		4104	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4105	};
		4106
		4107	cf::cleanup "db_env_open(db): $@" if $@;
		4108	};
		4109	}
		4110
		4111	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4112	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4113	};
		4114	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4115	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4116	};
		4117	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4118	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4119	};
		4120	}
		4121
		4122	{
		4123	# configure IO::AIO
		4124
		4125	IO::AIO::min_parallel 8;
		4126	IO::AIO::max_poll_time $TICK * 0.1;
		4127	undef $AnyEvent::AIO::WATCHER;
		4128	}
		4129
		4130	my $_log_backtrace;
		4131
		4132	sub _log_backtrace {
		4133	my ($msg, @addr) = @_;
		4134
		4135	$msg =~ s/\n//;
		4136
		4137	# limit the # of concurrent backtraces
		4138	if ($_log_backtrace < 2) {
		4139	++$_log_backtrace;
		4140	my $perl_bt = Carp::longmess $msg;
		4141	async {
		4142	$Coro::current->{desc} = "abt $msg";
		4143
		4144	my @bt = fork_call {
		4145	@addr = map { sprintf "%x", $_ } @addr;
		4146	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4147	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4148	or die "addr2line: $!";
		4149
		4150	my @funcs;
		4151	my @res = <$fh>;
		4152	chomp for @res;
		4153	while (@res) {
		4154	my ($func, $line) = splice @res, 0, 2, ();
		4155	push @funcs, "[$func] $line";
		4156	}
		4157
		4158	@funcs
		4159	};
		4160
		4161	LOG llevInfo, "[ABT] $perl_bt\n";
		4162	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4163	LOG llevInfo, "[ABT] $_\n" for @bt;
		4164	--$_log_backtrace;
		4165	};
		4166	} else {
		4167	LOG llevInfo, "[ABT] $msg\n";
		4168	LOG llevInfo, "[ABT] [suppressed]\n";
		4169	}
		4170	}
		4171
		4172	# load additional modules
		4173	require "cf/$_.pm" for @EXTRA_MODULES;
		4174	cf::_connect_to_perl_2;
2196		4175
2197	END { cf::emergency_save }	4176	END { cf::emergency_save }
2198		4177
2199	1	4178	1
2200		4179

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