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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.137 by root, Fri Jan 5 10:23:05 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 $RANDOM_MAPS = cf::localdir . "/random";	139	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	140
		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 $REALLY_UNLOOP; # never set to true, please :)
56		153
57	binmode STDOUT;	154	binmode STDOUT;
58	binmode STDERR;	155	binmode STDERR;
59		156
60	# read virtual server time, if available	157	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
65	}	162	}
66		163
67	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		165
73	# a special map that is always available	166	mkdir $_
74	our $LINK_MAP;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		168
75	our $EMERGENCY_POSITION;	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::"} };
76		187
77	#############################################################################	188	#############################################################################
78		189
79	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
80		191
…		…
87	=item $cf::RUNTIME	198	=item $cf::RUNTIME
88		199
89	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
90	every server tick.	201	every server tick.
91		202
92	=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
93		206
94	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		211
97	=item $cf::NOW	212	=item $cf::NOW
98		213
99	The time of the last (current) server tick.	214	The time of the last (current) server tick.
100		215
101	=item $cf::TICK	216	=item $cf::TICK
102		217
103	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
104		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
105	=item %cf::CFG	230	=item %cf::CFG
106		231
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	233	from wherever your confdir points to.
109		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
110	=back	258	=back
111		259
112	=cut	260	=cut
113		261
114	BEGIN {	262	sub error(@) { LOG llevError, join "", @_ }
115	*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 {
116	my $msg = join "", @_;	269	my $msg = join "", @_;
117	utf8::encode $msg;
118		270
119	$msg .= "\n"	271	$msg .= "\n"
120	unless $msg =~ /\n$/;	272	unless $msg =~ /\n$/;
121		273
122	LOG llevError, "cfperl: $msg";	274	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
123	};	275
124	}	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	};
125		292
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	293	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	294	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	295	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	296	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		300
133	# 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
134	# within the Safe compartment.	302	# within the Safe compartment.
135	for my $pkg (qw(	303	for my $pkg (qw(
136	cf::global cf::attachable	304	cf::global cf::attachable
137	cf::object cf::object::player	305	cf::object cf::object::player
138	cf::client cf::player	306	cf::client cf::player
139	cf::arch cf::living	307	cf::arch cf::living
		308	cf::map cf::mapspace
140	cf::map cf::party cf::region	309	cf::party cf::region
141	)) {	310	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	311	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	312	}
145		313
146	$Event::DIED = sub {	314	$EV::DIED = sub {
147	warn "error in event callback: @_";	315	Carp::cluck "error in event callback: @_";
148	};	316	};
149		317
150	my %ext_pkg;	318	#############################################################################
151	my @exts;
152	my @hook;
153		319
154	=head2 UTILITY FUNCTIONS	320	=head2 UTILITY FUNCTIONS
155		321
156	=over 4	322	=over 4
157		323
158	=cut	324	=item dumpval $ref
159		325
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	326	=cut
161		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
162	=item $ref = cf::from_json $json	347	=item $ref = cf::decode_json $json
163		348
164	Converts a JSON string into the corresponding perl data structure.	349	Converts a JSON string into the corresponding perl data structure.
165		350
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	351	=item $json = cf::encode_json $ref
174		352
175	Converts a perl data structure into its JSON representation.	353	Converts a perl data structure into its JSON representation.
176		354
177	=cut	355	=cut
178		356
179	sub to_json($) {	357	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	358
181	JSON::Syck::Dump $_[0]	359	sub encode_json($) { $json_coder->encode ($_[0]) }
		360	sub decode_json($) { $json_coder->decode ($_[0]) }
		361
		362	=item cf::post_init { BLOCK }
		363
		364	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		365	but I<before> the server starts ticking again.
		366
		367	The cdoeblock will have a single boolean argument to indicate whether this
		368	is a reload or not.
		369
		370	=cut
		371
		372	sub post_init(&) {
		373	push @POST_INIT, shift;
182	}	374	}
183		375
184	=item cf::lock_wait $string	376	=item cf::lock_wait $string
185		377
186	Wait until the given lock is available. See cf::lock_acquire.	378	Wait until the given lock is available. See cf::lock_acquire.
187		379
188	=item my $lock = cf::lock_acquire $string	380	=item my $lock = cf::lock_acquire $string
189		381
190	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
191	a Coro::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,
192	for example when the coroutine gets canceled), the lock is automatically	384	for example when the coroutine gets canceled), the lock is automatically
193	returned.	385	returned.
194		386
		387	Locks are *not* recursive, locking from the same coro twice results in a
		388	deadlocked coro.
		389
195	Lock names should begin with a unique identifier (for example, cf::map::find	390	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	391	uses map_find and cf::map::load uses map_load).
197		392
198	=cut	393	=item $locked = cf::lock_active $string
199		394
200	our %LOCK;	395	Return true if the lock is currently active, i.e. somebody has locked it.
		396
		397	=cut
		398
		399	our $LOCKS = new Coro::SemaphoreSet;
201		400
202	sub lock_wait($) {	401	sub lock_wait($) {
203	my ($key) = @_;	402	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	403	}
211		404
212	sub lock_acquire($) {	405	sub lock_acquire($) {
213	my ($key) = @_;	406	$LOCKS->guard ($_[0])
		407	}
214		408
215	# wait, to be sure we are not locked	409	sub lock_active($) {
216	lock_wait $key;	410	$LOCKS->count ($_[0]) < 1
		411	}
217		412
218	$LOCK{$key} = [];	413	sub freeze_mainloop {
		414	tick_inhibit_inc;
219		415
220	Coro::guard {	416	&Guard::guard (\&tick_inhibit_dec);
221	# wake up all waiters, to be on the safe side	417	}
222	$_->ready for @{ delete $LOCK{$key} };	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($$) {
		427	my ($interval, $cb) = @_;
		428
		429	my $start = rand List::Util::min 180, $interval;
		430
		431	EV::periodic $start, $interval, 0, $cb
		432	}
		433
		434	=item cf::get_slot $time[, $priority[, $name]]
		435
		436	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		437	This call blocks and returns only when you have at least C<$time> seconds
		438	of cpu time till the next tick. The slot is only valid till the next cede.
		439
		440	The optional C<$name> can be used to identify the job to run. It might be
		441	used for statistical purposes and should identify the same time-class.
		442
		443	Useful for short background jobs.
		444
		445	=cut
		446
		447	our @SLOT_QUEUE;
		448	our $SLOT_QUEUE;
		449	our $SLOT_DECAY = 0.9;
		450
		451	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		452	$SLOT_QUEUE = Coro::async {
		453	$Coro::current->desc ("timeslot manager");
		454
		455	my $signal = new Coro::Signal;
		456	my $busy;
		457
		458	while () {
		459	next_job:
		460
		461	my $avail = cf::till_tick;
		462
		463	for (0 .. $#SLOT_QUEUE) {
		464	if ($SLOT_QUEUE[$_][0] <= $avail) {
		465	$busy = 0;
		466	my $job = splice @SLOT_QUEUE, $_, 1, ();
		467	$job->[2]->send;
		468	Coro::cede;
		469	goto next_job;
		470	} else {
		471	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		472	}
		473	}
		474
		475	if (@SLOT_QUEUE) {
		476	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		477	push @cf::WAIT_FOR_TICK, $signal;
		478	$signal->wait;
		479	} else {
		480	$busy = 0;
		481	Coro::schedule;
		482	}
223	}	483	}
		484	};
		485
		486	sub get_slot($;$$) {
		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	$sig->wait;
224	}	499	}
225		500
226	=item cf::async { BLOCK }	501	=item cf::async { BLOCK }
227		502
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	503	Currently the same as Coro::async_pool, meaning you cannot use
229	error instead of exiting the server in case of a problem.	504	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		505	thing you are allowed to do is call C<prio> on it.
230		506
231	=cut	507	=cut
232		508
233	sub async(&) {	509	BEGIN { *async = \&Coro::async_pool }
234	my ($cb) = @_;
235
236	Coro::async {
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}
241
242	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;
244
245	my $guard = Coro::guard { $TICK_WATCHER->start };
246	$TICK_WATCHER->stop;
247	$guard
248	}
249		510
250	=item cf::sync_job { BLOCK }	511	=item cf::sync_job { BLOCK }
251		512
252	The design of crossfire+ requires that the main coro ($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	my $freeze_guard = freeze_mainloop;	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 $coro = &cf::async ($cb);	578	my $coro = &Coro::async ($cb);
307		579
308	$coro->on_destroy (sub {	580	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	581	delete $EXT_CORO{$coro+0};
310	});	582	});
311	$EXT_CORO{$coro+0} = $coro;	583	$EXT_CORO{$coro+0} = $coro;
312		584
313	$coro	585	$coro
314	}	586	}
315		587
316	sub write_runtime {	588	=item fork_call { }, $args
317	my $runtime = cf::localdir . "/runtime";
318		589
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	590	Executes the given code block with the given arguments in a seperate
320	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.
321		594
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	595	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		596
326	aio_fsync $fh	597	sub post_fork {
327	and return;	598	reset_signals;
		599	}
328		600
329	close $fh	601	sub fork_call(&@) {
330	or return;	602	my ($cb, @args) = @_;
331		603
332	aio_rename "$runtime~", $runtime	604	# we seemingly have to make a local copy of the whole thing,
333	and return;	605	# otherwise perl prematurely frees the stuff :/
		606	# TODO: investigate and fix (likely this will be rather laborious)
334		607
		608	my @res = Coro::Util::fork_eval {
		609	cf::post_fork;
		610	&$cb
		611	}, @args;
		612
		613	wantarray ? @res : $res[-1]
		614	}
		615
		616	sub objinfo {
335	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 => $type });
336	}	792	}
337		793
338	=back	794	=back
339		795
340	=cut	796	=cut
341		797
342	#############################################################################	798	#############################################################################
343		799
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461
462	#############################################################################
463
464	=head2 ATTACHABLE OBJECTS	800	=head2 ATTACHABLE OBJECTS
465		801
466	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
467	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")
468	to it. All such attachable objects support the following methods.	804	to it. All such attachable objects support the following methods.
469		805
470	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>
471	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
472	crossfire+).	808	Deliantra).
473		809
474	=over 4	810	=over 4
475		811
476	=item $attachable->attach ($attachment, key => $value...)	812	=item $attachable->attach ($attachment, key => $value...)
477		813
…		…
521	=item cf::CLASS::attachment $name, ...	857	=item cf::CLASS::attachment $name, ...
522		858
523	Register an attachment by C<$name> through which attachable objects of the	859	Register an attachment by C<$name> through which attachable objects of the
524	given CLASS can refer to this attachment.	860	given CLASS can refer to this attachment.
525		861
526	Some classes such as crossfire maps and objects can specify attachments	862	Some classes such as deliantra maps and objects can specify attachments
527	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.
528		864
529	These calls expect any number of the following handler/hook descriptions:	865	These calls expect any number of the following handler/hook descriptions:
530		866
531	=over 4	867	=over 4
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	927	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	928	our @CB_MAP = ();
593		929
594	my %attachment;	930	my %attachment;
595		931
		932	sub cf::attachable::thawer_merge {
		933	# simply override everything except _meta
		934	local $_[0]{_meta};
		935	%{$_[0]} = %{$_[1]};
		936	}
		937
596	sub _attach_cb($$$$) {	938	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	939	my ($registry, $event, $prio, $cb) = @_;
598		940
599	use sort 'stable';	941	use sort 'stable';
600		942
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	976	$registry = $CB_TYPE[$object_type] ||= [];
635		977
636	} elsif ($type eq "subtype") {	978	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	979	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	980	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	981	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		982
641	} elsif ($type eq "package") {	983	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	984	my $pkg = shift @arg;
643		985
644	while (my ($name, $id) = each %cb_id) {	986	while (my ($name, $id) = each %cb_id) {
…		…
649		991
650	} elsif (exists $cb_id{$type}) {	992	} elsif (exists $cb_id{$type}) {
651	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	993	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
652		994
653	} elsif (ref $type) {	995	} elsif (ref $type) {
654	warn "attaching objects not supported, ignoring.\n";	996	error "attaching objects not supported, ignoring.\n";
655		997
656	} else {	998	} else {
657	shift @arg;	999	shift @arg;
658	warn "attach argument '$type' not supported, ignoring.\n";	1000	error "attach argument '$type' not supported, ignoring.\n";
659	}	1001	}
660	}	1002	}
661	}	1003	}
662		1004
663	sub _object_attach {	1005	sub _object_attach {
…		…
673	_attach $registry, $klass, @attach;	1015	_attach $registry, $klass, @attach;
674	}	1016	}
675		1017
676	$obj->{$name} = \%arg;	1018	$obj->{$name} = \%arg;
677	} else {	1019	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	1020	info "object uses attachment '$name' which is not available, postponing.\n";
679	}	1021	}
680		1022
681	$obj->{_attachment}{$name} = undef;	1023	$obj->{_attachment}{$name} = undef;
682	}	1024	}
683		1025
…		…
685	if (ref $_[0]) {	1027	if (ref $_[0]) {
686	_object_attach @_;	1028	_object_attach @_;
687	} else {	1029	} else {
688	_attach shift->_attach_registry, @_;	1030	_attach shift->_attach_registry, @_;
689	}	1031	}
		1032	_recalc_want;
690	};	1033	};
691		1034
692	# all those should be optimised	1035	# all those should be optimised
693	sub cf::attachable::detach {	1036	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	1037	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	1040	delete $obj->{_attachment}{$name};
698	reattach ($obj);	1041	reattach ($obj);
699	} else {	1042	} else {
700	Carp::croak "cannot, currently, detach class attachments";	1043	Carp::croak "cannot, currently, detach class attachments";
701	}	1044	}
		1045	_recalc_want;
702	};	1046	};
703		1047
704	sub cf::attachable::attached {	1048	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	1049	my ($obj, $name) = @_;
706		1050
…		…
721	";	1065	";
722	die if $@;	1066	die if $@;
723	}	1067	}
724		1068
725	our $override;	1069	our $override;
726	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?
727		1071
728	sub override {	1072	sub override {
729	$override = 1;	1073	$override = 1;
730	@invoke_results = ();	1074	@INVOKE_RESULTS = (@_);
731	}	1075	}
732		1076
733	sub do_invoke {	1077	sub do_invoke {
734	my $event = shift;	1078	my $event = shift;
735	my $callbacks = shift;	1079	my $callbacks = shift;
736		1080
737	@invoke_results = ();	1081	@INVOKE_RESULTS = ();
738		1082
739	local $override;	1083	local $override;
740		1084
741	for (@$callbacks) {	1085	for (@$callbacks) {
742	eval { &{$_->[1]} };	1086	eval { &{$_->[1]} };
743		1087
744	if ($@) {	1088	if ($@) {
745	warn "$@";
746	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1089	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
747	override;	1090	override;
748	}	1091	}
749		1092
750	return 1 if $override;	1093	return 1 if $override;
751	}	1094	}
752		1095
753	0	1096	0
754	}	1097	}
755		1098
756	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1099	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
757		1100
758	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1101	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
759		1102
760	Generate an object-specific event with the given arguments.	1103	Generate an object-specific event with the given arguments.
761		1104
762	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
763	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
764	results (if you must, access C<@cf::invoke_results> directly).	1107	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		1108
766	=back	1109	=back
767		1110
768	=cut	1111	=cut
769		1112
770	#############################################################################	1113	#############################################################################
771	# 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	}
772		1157
773	sub reattach {	1158	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	1159	# basically do the same as instantiate, without calling instantiate
775	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
776		1164
777	my $registry = $obj->registry;	1165	my $registry = $obj->registry;
778		1166
779	@$registry = ();	1167	@$registry = ();
780		1168
…		…
785	for (@$attach) {	1173	for (@$attach) {
786	my ($klass, @attach) = @$_;	1174	my ($klass, @attach) = @$_;
787	_attach $registry, $klass, @attach;	1175	_attach $registry, $klass, @attach;
788	}	1176	}
789	} else {	1177	} else {
790	warn "object uses attachment '$name' that is not available, postponing.\n";	1178	info "object uses attachment '$name' that is not available, postponing.\n";
791	}	1179	}
792	}	1180	}
793	}	1181	}
794		1182
795	cf::attachable->attach (	1183	cf::attachable->attach (
796	prio => -1000000,	1184	prio => -1000000,
797	on_instantiate => sub {	1185	on_instantiate => sub {
798	my ($obj, $data) = @_;	1186	my ($obj, $data) = @_;
799		1187
800	$data = from_json $data;	1188	$data = decode_json $data;
801		1189
802	for (@$data) {	1190	for (@$data) {
803	my ($name, $args) = @$_;	1191	my ($name, $args) = @$_;
804		1192
805	$obj->attach ($name, %{$args || {} });	1193	$obj->attach ($name, %{$args || {} });
…		…
821	sub object_freezer_save {	1209	sub object_freezer_save {
822	my ($filename, $rdata, $objs) = @_;	1210	my ($filename, $rdata, $objs) = @_;
823		1211
824	sync_job {	1212	sync_job {
825	if (length $$rdata) {	1213	if (length $$rdata) {
		1214	utf8::decode (my $decname = $filename);
826	warn sprintf "saving %s (%d,%d)\n",	1215	trace sprintf "saving %s (%d,%d)\n",
827	$filename, length $$rdata, scalar @$objs;	1216	$decname, length $$rdata, scalar @$objs
		1217	if $VERBOSE_IO;
828		1218
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1219	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1220	aio_chmod $fh, SAVE_MODE;
831	aio_write $fh, 0, (length $$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;
832	aio_fsync $fh;	1224	aio_fsync $fh;
		1225	}
833	close $fh;	1226	aio_close $fh;
834		1227
835	if (@$objs) {	1228	if (@$objs) {
836	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) {
837	chmod SAVE_MODE, $fh;	1230	aio_chmod $fh, SAVE_MODE;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	1231	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
839	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;
840	aio_fsync $fh;	1235	aio_fsync $fh;
		1236	}
841	close $fh;	1237	aio_close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	1238	aio_rename "$filename.pst~", "$filename.pst";
843	}	1239	}
844	} else {	1240	} else {
845	aio_unlink "$filename.pst";	1241	aio_unlink "$filename.pst";
846	}	1242	}
847		1243
848	aio_rename "$filename~", $filename;	1244	aio_rename "$filename~", $filename;
		1245
		1246	$filename =~ s%/[^/]+$%%;
		1247	aio_pathsync $filename if $cf::USE_FSYNC;
849	} else {	1248	} else {
850	warn "FATAL: $filename~: $!\n";	1249	error "unable to save objects: $filename~: $!\n";
851	}	1250	}
852	} else {	1251	} else {
853	aio_unlink $filename;	1252	aio_unlink $filename;
854	aio_unlink "$filename.pst";	1253	aio_unlink "$filename.pst";
855	}	1254	}
856	}	1255	};
857	}	1256	}
858		1257
859	sub object_freezer_as_string {	1258	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	1259	my ($rdata, $objs) = @_;
861		1260
…		…
873	or return;	1272	or return;
874		1273
875	unless (aio_stat "$filename.pst") {	1274	unless (aio_stat "$filename.pst") {
876	(aio_load "$filename.pst", $av) >= 0	1275	(aio_load "$filename.pst", $av) >= 0
877	or return;	1276	or return;
		1277
878	$av = eval { (Storable::thaw $av)->{objs} };	1278	my $st = eval { Coro::Storable::thaw $av };
		1279	$av = $st->{objs};
879	}	1280	}
880		1281
		1282	utf8::decode (my $decname = $filename);
881	warn sprintf "loading %s (%d)\n",	1283	trace sprintf "loading %s (%d,%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1284	$decname, length $data, scalar @{$av || []}
		1285	if $VERBOSE_IO;
		1286
883	return ($data, $av);	1287	($data, $av)
884	}	1288	}
		1289
		1290	=head2 COMMAND CALLBACKS
		1291
		1292	=over 4
		1293
		1294	=cut
885		1295
886	#############################################################################	1296	#############################################################################
887	# command handling &c	1297	# command handling &c
888		1298
889	=item cf::register_command $name => \&callback($ob,$args);	1299	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1312	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1313	}
904		1314
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1315	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1316
907	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.
908		1322
909	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
910	called.	1324	called.
911		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
912	=cut	1337	=cut
913		1338
914	sub register_extcmd {	1339	sub register_extcmd {
915	my ($name, $cb) = @_;	1340	my ($name, $cb) = @_;
916		1341
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1342	$EXTCMD{$name} = $cb;
921	}	1343	}
		1344
		1345	sub register_exticmd {
		1346	my ($name, $cb) = @_;
		1347
		1348	$EXTICMD{$name} = $cb;
		1349	}
		1350
		1351	use File::Glob ();
922		1352
923	cf::player->attach (	1353	cf::player->attach (
924	on_command => sub {	1354	on_unknown_command => sub {
925	my ($pl, $name, $params) = @_;	1355	my ($pl, $name, $params) = @_;
926		1356
927	my $cb = $COMMAND{$name}	1357	my $cb = $COMMAND{$name}
928	or return;	1358	or return;
929		1359
…		…
934	cf::override;	1364	cf::override;
935	},	1365	},
936	on_extcmd => sub {	1366	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1367	my ($pl, $buf) = @_;
938		1368
939	my $msg = eval { from_json $buf };	1369	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1370
941	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
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1379	if (my $cb = $EXTCMD{$type}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1380	@reply = $cb->($pl, @payload);
944	$pl->ext_reply ($msg->{msgid}, %reply);
945	}
946	}	1381	}
		1382
		1383	$pl->ext_reply ($reply, @reply)
		1384	if $reply;
		1385
947	} else {	1386	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1387	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
949	}	1388	}
950		1389
951	cf::override;	1390	cf::override;
952	},	1391	},
953	);	1392	);
954		1393
955	sub register {	1394	# "readahead" all extensions
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	1395	sub cache_extensions {
962	my ($path) = @_;	1396	my $grp = IO::AIO::aio_group;
963		1397
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1398	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
965	my $base = $1;	1399	for (grep /\.ext$/, @{$_[0]}) {
966	my $pkg = $1;	1400	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969
970	warn "loading '$path' into '$pkg'\n";
971
972	open my $fh, "<:utf8", $path
973	or die "$path: $!";
974
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }
1004
1005	# remove commands
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}	1401	}
1014	}	1402	};
1015		1403
1016	# remove extcmds	1404	$grp
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}	1405	}
1030		1406
1031	sub load_extensions {	1407	sub load_extensions {
		1408	info "loading extensions...";
		1409
		1410	cf::sync_job {
		1411	my %todo;
		1412
1032	for my $ext (<$LIBDIR/*.ext>) {	1413	for my $path (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;	1414	next unless -r $path;
1034	eval {	1415
1035	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	}
1036	1	1479	}
1037	} 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	}
1038	}	1490	};
1039	}	1491	}
1040		1492
1041	#############################################################################	1493	#############################################################################
1042	# load/save/clean perl data associated with a map
1043		1494
1044	*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($) {
1045	my ($map) = @_;	1549	my ($login) = @_;
1046		1550
1047	my $path = $map->tmpname;	1551	$cf::PLAYER{$login}
1048	defined $path or return;	1552	or !aio_stat path $login
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}	1553	}
1061		1554
1062	# 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
1063	cf::player->attach (	1582	cf::player->attach (
1064	on_load => sub {	1583	on_load => sub {
1065	my ($pl, $path) = @_;	1584	my ($pl, $path) = @_;
1066		1585
1067	for my $o (all_objects $pl->ob) {	1586	# restore slots saved in save, below
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1587	my $slots = delete $pl->{_slots};
1069	$o->set_ob_key_value ("_perl_data");
1070		1588
1071	%$o = %{ Storable::thaw pack "H*", $value };	1589	$pl->ob->current_weapon ($slots->[0]);
1072	}	1590	$pl->combat_ob ($slots->[1]);
1073	}	1591	$pl->ranged_ob ($slots->[2]);
1074	},	1592	},
1075	);	1593	);
1076		1594
1077	#############################################################################	1595	sub save($) {
		1596	my ($pl) = @_;
1078		1597
1079	=head2 CORE EXTENSIONS	1598	return if $pl->{deny_save};
1080		1599
1081	Functions and methods that extend core crossfire objects.	1600	my $path = path $pl;
		1601	my $guard = cf::lock_acquire "user_save:$path";
1082		1602
1083	=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($$@) {
		1776	my ($self, $type, @msg) = @_;
		1777
		1778	$self->ns->ext_msg ($type, @msg);
		1779	}
		1780
		1781	=head3 cf::region
1084		1782
1085	=over 4	1783	=over 4
1086		1784
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut	1785	=cut
1092		1786
1093	sub cf::player::exists($) {	1787	package cf::region;
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097		1788
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)	1789	=item cf::region::find_by_path $path
1099		1790
1100	Sends an ext reply to the player.	1791	Tries to decuce the likely region for a map knowing only its path.
1101		1792
1102	=cut	1793	=cut
1103		1794
1104	sub cf::player::ext_reply($$$%) {	1795	sub find_by_path($) {
1105	my ($self, $id, %msg) = @_;	1796	my ($path) = @_;
1106		1797
1107	$msg{msgid} = $id;	1798	$path =~ s/^~[^\/]*//; # skip ~login
1108		1799
1109	$self->send ("ext " . to_json \%msg);	1800	my ($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
1110	}	1810	}
1111		1811
1112	=back	1812	=back
1113
1114		1813
1115	=head3 cf::map	1814	=head3 cf::map
1116		1815
1117	=over 4	1816	=over 4
1118		1817
…		…
1121	package cf::map;	1820	package cf::map;
1122		1821
1123	use Fcntl;	1822	use Fcntl;
1124	use Coro::AIO;	1823	use Coro::AIO;
1125		1824
		1825	use overload
		1826	'""' => \&as_string,
		1827	fallback => 1;
		1828
1126	our $MAX_RESET = 3600;	1829	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1830	our $DEFAULT_RESET = 3000;
1128		1831
1129	sub generate_random_map {	1832	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1833	my ($self, $rmp) = @_;
		1834
		1835	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1131		1836
1132	# mit "rum" bekleckern, nicht	1837	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1838	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1839	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1840	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1841	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1842	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1843	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1844	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1845	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1846	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$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},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1848	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1849	(cf::region::find $rmp->{region}), $rmp->{custom}
		1850	)
1146	}	1851	}
1147		1852
1148	# and all this just because we cannot iterate over	1853	=item cf::map->register ($regex, $prio)
1149	# all maps in C++...
1150	sub change_all_map_light {
1151	my ($change) = @_;
1152		1854
1153	$_->change_map_light ($change)	1855	Register a handler for the map path matching the given regex at the
1154	for grep $_->outdoor, values %cf::MAP;	1856	givne priority (higher is better, built-in handlers have priority 0, the
1155	}	1857	default).
1156		1858
1157	sub try_load_header($) {	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 {
1158	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) = @_;
1159		1997
1160	utf8::encode $path;	1998	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1999	my $f = new_from_file cf::object::thawer $path
1162	or return;	2000	or return;
1163		2001
1164	my $map = cf::map::new	2002	$self->_load_header ($f)
1165	or return;	2003	or return;
1166		2004
1167	# for better error messages only, will be overwritten	2005	local $MAP_LOADING{$self->{path}} = $self;
1168	$map->path ($path);	2006	$f->resolve_delayed_derefs;
1169		2007
1170	$map->load_header ($path)	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
1171	or return;	2051	or return;
		2052	$self->prepare_orig;
		2053	}
1172		2054
1173	$map->{load_path} = $path;	2055	$self->{deny_reset} = 1
		2056	if $self->no_reset;
1174		2057
1175	$map	2058	$self->default_region (cf::region::find_by_path $self->{path})
		2059	unless $self->default_region;
		2060
		2061	1
1176	}	2062	}
1177		2063
1178	sub find;	2064	sub find;
1179	sub find {	2065	sub find {
1180	my ($path, $origin) = @_;	2066	my ($path, $origin) = @_;
1181		2067
1182	#warn "find<$path,$origin>\n";#d#	2068	cf::cede_to_tick;
1183		2069
1184	$path = new cf::path $path, $origin && $origin->path;	2070	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		2071
1187	cf::lock_wait "map_find:$key";	2072	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1188
1189	$cf::MAP{$key} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	2073	my $guard2 = cf::lock_acquire "map_find:$path";
1191		2074
1192	# do it the slow way	2075	$cf::MAP{$path} || do {
1193	my $map = try_load_header $path->save_path;	2076	my $map = new_from_path cf::map $path
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	2077	or return;
1211		2078
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	2079	$map->{last_save} = $cf::RUNTIME;
1224		2080
1225	Coro::cede;	2081	$map->load_header
		2082	or return;
1226		2083
1227	if ($map->should_reset) {	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;
1228	$map->reset;	2089	$map->reset;
1229	undef $guard;
1230	$map = find $path	2090	return find $path;
1231	or return;
1232	}	2091	}
1233		2092
1234	$cf::MAP{$key} = $map	2093	$cf::MAP{$path} = $map
1235	}	2094	}
1236	}	2095	}
		2096
		2097	sub pre_load { }
		2098	#sub post_load { } # XS
1237		2099
1238	sub load {	2100	sub load {
1239	my ($self) = @_;	2101	my ($self) = @_;
1240		2102
		2103	local $self->{deny_reset} = 1; # loading can take a long time
		2104
1241	my $path = $self->{path};	2105	my $path = $self->{path};
		2106
		2107	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2108	my $guard = cf::lock_acquire "map_data:$path";
1243		2109
		2110	return unless $self->valid;
1244	return if $self->in_memory != cf::MAP_SWAPPED;	2111	return unless $self->in_memory == cf::MAP_SWAPPED;
1245		2112
1246	$self->in_memory (cf::MAP_LOADING);	2113	$self->in_memory (cf::MAP_LOADING);
1247		2114
1248	$self->alloc;	2115	$self->alloc;
1249	$self->load_objects ($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)
1250	or return;	2123	or return;
1251		2124
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2125	$self->post_load_original
1253	if delete $self->{load_original};	2126	if delete $self->{load_original};
1254		2127
1255	if (my $uniq = $path->uniq_path) {	2128	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	2129	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	2130	unless (aio_stat $uniq) {
		2131	if (my $f = new_from_file cf::object::thawer $uniq) {
1258	$self->clear_unique_items;	2132	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	2133	$self->_load_objects ($f);
		2134	$f->resolve_delayed_derefs;
		2135	}
1260	}	2136	}
1261	}	2137	}
1262		2138
1263	Coro::cede;	2139	$f->resolve_delayed_derefs;
1264		2140
		2141	cf::cede_to_tick;
1265	# now do the right thing for maps	2142	# now do the right thing for maps
1266	$self->link_multipart_objects;	2143	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	2144	$self->difficulty ($self->estimate_difficulty)
1277	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;
1278	$self->activate;	2153	$self->activate;
1279	}	2154	}
1280		2155
1281	Coro::cede;	2156	$self->{last_save} = $cf::RUNTIME;
		2157	$self->last_access ($cf::RUNTIME);
1282		2158
1283	$self->in_memory (cf::MAP_IN_MEMORY);	2159	$self->in_memory (cf::MAP_ACTIVE);
		2160	}
		2161
		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	$neigh->load;
		2204	}
1284	}	2205	}
1285		2206
1286	sub find_sync {	2207	sub find_sync {
1287	my ($path, $origin) = @_;	2208	my ($path, $origin) = @_;
1288		2209
1289	cf::sync_job { cf::map::find $path, $origin }	2210	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2211	if $Coro::current == $Coro::main;
		2212
		2213	find $path, $origin
1290	}	2214	}
1291		2215
1292	sub do_load_sync {	2216	sub do_load_sync {
1293	my ($map) = @_;	2217	my ($map) = @_;
1294		2218
1295	cf::sync_job { $map->load };	2219	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2220	if $Coro::current == $Coro::main;
		2221
		2222	$map->load;
		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);
		2287	}
1296	}	2288	}
1297		2289
1298	sub save {	2290	sub save {
1299	my ($self) = @_;	2291	my ($self) = @_;
1300		2292
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	2293	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2294
1303	$self->{last_save} = $cf::RUNTIME;	2295	$self->_save;
1304
1305	return unless $self->dirty;
1306
1307	my $save = $self->{path}->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1309
1310	$self->{load_path} = $save;
1311
1312	return if $self->{deny_save};
1313
1314	local $self->{last_access} = $self->last_access;#d#
1315
1316	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}
1322	}	2296	}
1323		2297
1324	sub swap_out {	2298	sub swap_out {
1325	my ($self) = @_;	2299	my ($self) = @_;
1326		2300
1327	# save first because save cedes
1328	$self->save;
1329
1330	my $lock = cf::lock_acquire "map_data:" . $self->path;	2301	my $lock = cf::lock_acquire "map_data:$self->{path}";
1331		2302
		2303	return if $self->in_memory != cf::MAP_ACTIVE;
		2304	return if $self->{deny_save};
1332	return if $self->players;	2305	return if $self->players;
1333	return if $self->in_memory != cf::MAP_IN_MEMORY;
1334	return if $self->{deny_save};
1335		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
		2313	$self->_save;
		2314
		2315	# then free the map
1336	$self->clear;	2316	$self->clear;
1337	$self->in_memory (cf::MAP_SWAPPED);
1338	}	2317	}
1339		2318
1340	sub reset_at {	2319	sub reset_at {
1341	my ($self) = @_;	2320	my ($self) = @_;
1342		2321
1343	# TODO: safety, remove and allow resettable per-player maps	2322	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};
1345	return 1e99 if $self->{deny_reset};	2323	return 1e99 if $self->{deny_reset};
1346		2324
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2325	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2326	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		2327
…		…
1354	my ($self) = @_;	2332	my ($self) = @_;
1355		2333
1356	$self->reset_at <= $cf::RUNTIME	2334	$self->reset_at <= $cf::RUNTIME
1357	}	2335	}
1358		2336
1359	sub unlink_save {
1360	my ($self) = @_;
1361
1362	utf8::encode (my $save = $self->{path}->save_path);
1363	aioreq_pri 3; IO::AIO::aio_unlink $save;
1364	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1365	}
1366
1367	sub rename {
1368	my ($self, $new_path) = @_;
1369
1370	$self->unlink_save;
1371
1372	delete $cf::MAP{$self->path};
1373	$self->{path} = new cf::path $new_path;
1374	$self->path ($self->{path}->as_string);
1375	$cf::MAP{$self->path} = $self;
1376
1377	$self->save;
1378	}
1379
1380	sub reset {	2337	sub reset {
1381	my ($self) = @_;	2338	my ($self) = @_;
1382		2339
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	2340	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		2341
1385	return if $self->players;	2342	return if $self->players;
1386	return if $self->{path}{user_rel};#d#
1387		2343
1388	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	}
1389		2355
1390	delete $cf::MAP{$self->path};	2356	delete $cf::MAP{$self->path};
1391		2357
		2358	$self->deactivate;
1392	$_->clear_links_to ($self) for values %cf::MAP;	2359	$_->clear_links_to ($self) for values %cf::MAP;
		2360	$self->clear;
1393		2361
1394	$self->unlink_save;	2362	$self->unlink_save;
1395	$self->destroy;	2363	$self->destroy;
1396	}	2364	}
1397		2365
1398	my $nuke_counter = "aaaa";	2366	my $nuke_counter = "aaaa";
1399		2367
1400	sub nuke {	2368	sub nuke {
1401	my ($self) = @_;	2369	my ($self) = @_;
1402		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};
1403	$self->{deny_save} = 1;	2380	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	2381	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	2382	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2383
		2384	$cf::MAP{$self->path} = $self;
		2385	}
		2386
1406	$self->reset; # polite request, might not happen	2387	$self->reset; # polite request, might not happen
1407	}	2388	}
1408		2389
1409	sub customise_for {	2390	=item $maps = cf::map::tmp_maps
1410	my ($map, $ob) = @_;
1411		2391
1412	if ($map->per_player) {	2392	Returns an arrayref with all map paths of currently instantiated and saved
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2393	maps. May block.
		2394
		2395	=cut
		2396
		2397	sub tmp_maps() {
1414	}	2398	[
1415		2399	map {
1416	$map	2400	utf8::decode $_;
		2401	/\.map$/
		2402	? normalise $_
		2403	: ()
		2404	} @{ aio_readdir $TMPDIR or [] }
		2405	]
1417	}	2406	}
1418		2407
1419	sub emergency_save {	2408	=item $maps = cf::map::random_maps
1420	my $freeze_guard = cf::freeze_mainloop;
1421		2409
1422	warn "enter emergency map save\n";	2410	Returns an arrayref with all map paths of currently instantiated and saved
		2411	random maps. May block.
1423		2412
1424	cf::sync_job {	2413	=cut
1425	warn "begin emergency map save\n";	2414
1426	$_->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;
1427	};	2472	}
1428		2473
1429	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	}
1430	}	2529	}
1431		2530
1432	package cf;	2531	package cf;
1433		2532
1434	=back	2533	=back
1435
1436		2534
1437	=head3 cf::object::player	2535	=head3 cf::object::player
1438		2536
1439	=over 4	2537	=over 4
1440		2538
…		…
1443	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>
1444	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
1445	dialogue with the given NPC character.	2543	dialogue with the given NPC character.
1446		2544
1447	=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	};
1448		2560
1449	# rough implementation of a future "reply" method that works	2561	# rough implementation of a future "reply" method that works
1450	# with dialog boxes.	2562	# with dialog boxes.
1451	#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
1452	sub cf::object::player::reply($$$;$) {	2564	sub cf::object::player::reply($$$;$) {
…		…
1454		2566
1455	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2567	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1456		2568
1457	if ($self->{record_replies}) {	2569	if ($self->{record_replies}) {
1458	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2570	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2571
1459	} 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 {
1460	$msg = $npc->name . " says: $msg" if $npc;	2580	$msg = $npc->name . " says: $msg" if $npc;
1461	$self->message ($msg, $flags);	2581	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2582	}
1462	}	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 (@_);
1463	}	2594	}
1464		2595
1465	=item $player_object->may ("access")	2596	=item $player_object->may ("access")
1466		2597
1467	Returns wether the given player is authorized to access resource "access"	2598	Returns wether the given player is authorized to access resource "access"
…		…
1480		2611
1481	=item $player_object->enter_link	2612	=item $player_object->enter_link
1482		2613
1483	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}>).
1484		2615
1485	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.
1486	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.
1487		2622
1488	=item $player_object->leave_link ($map, $x, $y)	2623	=item $player_object->leave_link ($map, $x, $y)
1489		2624
1490	Moves the player out of the specila link map onto the given map. If the	2625	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	2626	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	2627	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	2628	fails, to the emergency map position.
1494		2629
1495	Might block.	2630	Might block.
1496		2631
1497	=cut	2632	=cut
		2633
		2634	sub link_map {
		2635	unless ($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	$LINK_MAP
		2642	}
1498		2643
1499	sub cf::object::player::enter_link {	2644	sub cf::object::player::enter_link {
1500	my ($self) = @_;	2645	my ($self) = @_;
1501		2646
1502	$self->deactivate_recursive;	2647	$self->deactivate_recursive;
1503		2648
1504	return if $self->map == $LINK_MAP;	2649	++$self->{_link_recursion};
		2650
		2651	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		2652
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2653	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	2654	if $self->map && $self->map->{path} ne "{link}";
1508		2655
1509	$self->enter_map ($LINK_MAP, 20, 20);	2656	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1510	}	2657	}
1511		2658
1512	sub cf::object::player::leave_link {	2659	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	2660	my ($self, $map, $x, $y) = @_;
		2661
		2662	return unless $self->contr->active;
1514		2663
1515	my $link_pos = delete $self->{_link_pos};	2664	my $link_pos = delete $self->{_link_pos};
1516		2665
1517	unless ($map) {	2666	unless ($map) {
1518	# restore original map position	2667	# restore original map position
…		…
1529	($x, $y) = (-1, -1)	2678	($x, $y) = (-1, -1)
1530	unless (defined $x) && (defined $y);	2679	unless (defined $x) && (defined $y);
1531		2680
1532	# use -1 or undef as default coordinates, not 0, 0	2681	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	2682	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	2683	if $x <= 0 && $y <= 0;
1535		2684
1536	$map->load;	2685	$map->load;
		2686	$map->load_neighbours;
1537		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
1538	$self->activate_recursive;	2695	$self->activate_recursive;
1539	$self->enter_map ($map, $x, $y);
1540	}
1541
1542	cf::player->attach (
1543	on_logout => sub {
1544	my ($pl) = @_;
1545
1546	# abort map switching before logout
1547	if ($pl->ob->{_link_pos}) {
1548	cf::sync_job {
1549	$pl->ob->leave_link
1550	};
1551	}
1552	},	2696	}
1553	on_login => sub {
1554	my ($pl) = @_;
1555		2697
1556	# try to abort aborted map switching on player login :)	2698	}
1557	# should happen only on crashes
1558	if ($pl->ob->{_link_pos}) {
1559	$pl->ob->enter_link;
1560	cf::async {
1561	# we need this sleep as the login has a concurrent enter_exit running
1562	# and this sleep increases chances of the player not ending up in scorn
1563	Coro::Timer::sleep 1;
1564	$pl->ob->leave_link;
1565	};
1566	}
1567	},
1568	);
1569		2699
1570	=item $player_object->goto ($path, $x, $y)	2700	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1571		2701
		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.
		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
1572	=cut	2711	=cut
		2712
		2713	our $GOTOGEN;
1573		2714
1574	sub cf::object::player::goto {	2715	sub cf::object::player::goto {
1575	my ($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;
1576		2726
1577	$self->enter_link;	2727	$self->enter_link;
1578		2728
1579	(cf::async {	2729	(async {
1580	$path = new cf::path $path;	2730	$Coro::current->{desc} = "player::goto $path $x $y";
1581		2731
1582	my $map = cf::map::find $path->as_string;	2732	# *tag paths override both path and x|y
		2733	if ($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) {
1583	$map = $map->customise_for ($self) if $map;	2755	$map = $map->customise_for ($self);
1584		2756	$map = $check->($map, $x, $y, $self) if $check && $map;
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	2757	} else {
1586	# if $map;
1587
1588	$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	}
1589		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};
1590	$self->leave_link ($map, $x, $y);	2771	$self->leave_link ($map, $x, $y);
		2772	}
		2773
		2774	$done->($self) if $done;
1591	})->prio (1);	2775	})->prio (1);
1592	}	2776	}
1593		2777
1594	=item $player_object->enter_exit ($exit_object)	2778	=item $player_object->enter_exit ($exit_object)
1595		2779
…		…
1597		2781
1598	sub parse_random_map_params {	2782	sub parse_random_map_params {
1599	my ($spec) = @_;	2783	my ($spec) = @_;
1600		2784
1601	my $rmp = { # defaults	2785	my $rmp = { # defaults
1602	xsize => 10,	2786	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	2787	ysize => (cf::rndm 15, 40),
		2788	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2789	#layout => string,
1604	};	2790	};
1605		2791
1606	for (split /\n/, $spec) {	2792	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	2793	my ($k, $v) = split /\s+/, $_, 2;
1608		2794
…		…
1620	# that depends on the exit object	2806	# that depends on the exit object
1621		2807
1622	my $rmp = parse_random_map_params $exit->msg;	2808	my $rmp = parse_random_map_params $exit->msg;
1623		2809
1624	if ($exit->map) {	2810	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	2811	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	2812	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	2813	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	2814	$rmp->{origin_y} = $exit->y;
		2815
		2816	$exit->map->touch;
1629	}	2817	}
1630		2818
1631	$rmp->{random_seed} ||= $exit->random_seed;	2819	$rmp->{random_seed} ||= $exit->random_seed;
1632		2820
1633	my $data = cf::to_json $rmp;	2821	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1634	my $md5 = Digest::MD5::md5_hex $data;	2822	my $md5 = Digest::MD5::md5_hex $data;
		2823	my $meta = "$RANDOMDIR/$md5.meta";
1635		2824
1636	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) {
1637	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;
1638		2829
		2830	my $slaying = "?random/$md5";
		2831
		2832	if ($exit->valid) {
1639	$exit->slaying ("?random/$md5");	2833	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	2834	$exit->msg (undef);
		2835	}
1641	}	2836	}
1642	}	2837	}
1643		2838
1644	sub cf::object::player::enter_exit {	2839	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	2840	my ($self, $exit) = @_;
1646		2841
1647	return unless $self->type == cf::PLAYER;	2842	return unless $self->type == cf::PLAYER;
1648		2843
1649	$self->enter_link;	2844	$self->enter_link;
1650		2845
1651	(cf::async {	2846	(async {
1652	$self->deactivate_recursive; # just to be sure	2847	$Coro::current->{desc} = "enter_exit";
		2848
1653	unless (eval {	2849	unless (eval {
		2850	$self->deactivate_recursive; # just to be sure
		2851
		2852	# random map handling
		2853	{
		2854	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2855
1654	prepare_random_map $exit	2856	prepare_random_map $exit
1655	if $exit->slaying eq "/!";	2857	if $exit->slaying eq "/!";
		2858	}
1656		2859
1657	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;
1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2861	my $x = $exit->stats->hp;
		2862	my $y = $exit->stats->sp;
1659		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
1660	1;	2870	1
1661	}) {	2871	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	2872	$self->message ("Something went wrong deep within the deliantra server. "
1663	. "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. "
1664	. "Please report this to the dungeon master",	2874	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	2875	cf::NDI_UNIQUE | cf::NDI_RED);
1666		2876
1667	warn "ERROR in enter_exit: $@";	2877	error "ERROR in enter_exit: $@";
1668	$self->leave_link;	2878	$self->leave_link;
1669	}	2879	}
1670	})->prio (1);	2880	})->prio (1);
1671	}	2881	}
1672		2882
…		…
1683		2893
1684	sub cf::client::send_drawinfo {	2894	sub cf::client::send_drawinfo {
1685	my ($self, $text, $flags) = @_;	2895	my ($self, $text, $flags) = @_;
1686		2896
1687	utf8::encode $text;	2897	utf8::encode $text;
1688	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2898	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1689	}	2899	}
1690		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	}
1691		3122
1692	=item $success = $client->query ($flags, "text", \&cb)	3123	=item $success = $client->query ($flags, "text", \&cb)
1693		3124
1694	Queues a query to the client, calling the given callback with	3125	Queues a query to the client, calling the given callback with
1695	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>,
1696	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>.
1697		3128
1698	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
1699	reliable at some point in the future.	3130	become reliable at some point in the future.
1700		3131
1701	=cut	3132	=cut
1702		3133
1703	sub cf::client::query {	3134	sub cf::client::query {
1704	my ($self, $flags, $text, $cb) = @_;	3135	my ($self, $flags, $text, $cb) = @_;
…		…
1712	utf8::encode $text;	3143	utf8::encode $text;
1713	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3144	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1714		3145
1715	$self->send_packet ($self->{query_queue}[0][0])	3146	$self->send_packet ($self->{query_queue}[0][0])
1716	if @{ $self->{query_queue} } == 1;	3147	if @{ $self->{query_queue} } == 1;
		3148
		3149	1
1717	}	3150	}
1718		3151
1719	cf::client->attach (	3152	cf::client->attach (
		3153	on_connect => sub {
		3154	my ($ns) = @_;
		3155
		3156	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3157	},
1720	on_reply => sub {	3158	on_reply => sub {
1721	my ($ns, $msg) = @_;	3159	my ($ns, $msg) = @_;
1722		3160
1723	# this weird shuffling is so that direct followup queries	3161	# this weird shuffling is so that direct followup queries
1724	# get handled first	3162	# get handled first
1725	my $queue = delete $ns->{query_queue}	3163	my $queue = delete $ns->{query_queue}
1726	or return; # be conservative, not sure how that can happen, but we saw a crash here	3164	or return; # be conservative, not sure how that can happen, but we saw a crash here
1727		3165
1728	(shift @$queue)->[1]->($msg);	3166	(shift @$queue)->[1]->($msg);
		3167	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		3168
1730	push @{ $ns->{query_queue} }, @$queue;	3169	push @{ $ns->{query_queue} }, @$queue;
1731		3170
1732	if (@{ $ns->{query_queue} } == @$queue) {	3171	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	3172	if (@$queue) {
…		…
1735	} else {	3174	} else {
1736	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3175	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1737	}	3176	}
1738	}	3177	}
1739	},	3178	},
		3179	on_exticmd => sub {
		3180	my ($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	},
1740	);	3205	);
1741		3206
1742	=item $client->coro (\&cb)	3207	=item $client->async (\&cb)
1743		3208
1744	Create a new coroutine, running the specified callback. The coroutine will	3209	Create a new coroutine, running the specified callback. The coroutine will
1745	be automatically cancelled when the client gets destroyed (e.g. on logout,	3210	be automatically cancelled when the client gets destroyed (e.g. on logout,
1746	or loss of connection).	3211	or loss of connection).
1747		3212
1748	=cut	3213	=cut
1749		3214
1750	sub cf::client::coro {	3215	sub cf::client::async {
1751	my ($self, $cb) = @_;	3216	my ($self, $cb) = @_;
1752		3217
1753	my $coro = &cf::async ($cb);	3218	my $coro = &Coro::async ($cb);
1754		3219
1755	$coro->on_destroy (sub {	3220	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	3221	delete $self->{_coro}{$coro+0};
1757	});	3222	});
1758		3223
…		…
1760		3225
1761	$coro	3226	$coro
1762	}	3227	}
1763		3228
1764	cf::client->attach (	3229	cf::client->attach (
1765	on_destroy => sub {	3230	on_client_destroy => sub {
1766	my ($ns) = @_;	3231	my ($ns) = @_;
1767		3232
1768	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3233	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1769	},	3234	},
1770	);	3235	);
…		…
1785	our $safe = new Safe "safe";	3250	our $safe = new Safe "safe";
1786	our $safe_hole = new Safe::Hole;	3251	our $safe_hole = new Safe::Hole;
1787		3252
1788	$SIG{FPE} = 'IGNORE';	3253	$SIG{FPE} = 'IGNORE';
1789		3254
1790	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3255	$safe->permit_only (Opcode::opset qw(
		3256	:base_core :base_mem :base_orig :base_math :base_loop
		3257	grepstart grepwhile mapstart mapwhile
		3258	sort time
		3259	));
1791		3260
1792	# here we export the classes and methods available to script code	3261	# here we export the classes and methods available to script code
1793		3262
1794	=pod	3263	=pod
1795		3264
1796	The following fucntions and emthods are available within a safe environment:	3265	The following functions and methods are available within a safe environment:
1797		3266
1798	cf::object contr pay_amount pay_player map	3267	cf::object
		3268	contr pay_amount pay_player map x y force_find force_add destroy
		3269	insert remove name archname title slaying race decrease split
		3270	value
		3271
1799	cf::object::player player	3272	cf::object::player
1800	cf::player peaceful	3273	player
1801	cf::map trigger	3274
		3275	cf::player
		3276	peaceful
		3277
		3278	cf::map
		3279	trigger
1802		3280
1803	=cut	3281	=cut
1804		3282
1805	for (	3283	for (
1806	["cf::object" => qw(contr pay_amount pay_player map)],	3284	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3285	insert remove inv nrof name archname title slaying race
		3286	decrease split destroy change_exp value msg lore send_msg)],
1807	["cf::object::player" => qw(player)],	3287	["cf::object::player" => qw(player)],
1808	["cf::player" => qw(peaceful)],	3288	["cf::player" => qw(peaceful send_msg)],
1809	["cf::map" => qw(trigger)],	3289	["cf::map" => qw(trigger)],
1810	) {	3290	) {
1811	no strict 'refs';
1812	my ($pkg, @funs) = @$_;	3291	my ($pkg, @funs) = @$_;
1813	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3292	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1814	for @funs;	3293	for @funs;
1815	}	3294	}
1816		3295
…		…
1831		3310
1832	my $qcode = $code;	3311	my $qcode = $code;
1833	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3312	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1834	$qcode =~ s/\n/\\n/g;	3313	$qcode =~ s/\n/\\n/g;
1835		3314
		3315	%vars = (_dummy => 0) unless %vars;
		3316
		3317	my @res;
1836	local $_;	3318	local $_;
1837	local @safe::cf::_safe_eval_args = values %vars;
1838		3319
1839	my $eval =	3320	my $eval =
1840	"do {\n"	3321	"do {\n"
1841	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3322	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1842	. "#line 0 \"{$qcode}\"\n"	3323	. "#line 0 \"{$qcode}\"\n"
1843	. $code	3324	. $code
1844	. "\n}"	3325	. "\n}"
1845	;	3326	;
1846		3327
		3328	if ($CFG{safe_eval}) {
1847	sub_generation_inc;	3329	sub_generation_inc;
		3330	local @safe::cf::_safe_eval_args = values %vars;
1848	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3331	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1849	sub_generation_inc;	3332	sub_generation_inc;
		3333	} else {
		3334	local @cf::_safe_eval_args = values %vars;
		3335	@res = wantarray ? eval eval : scalar eval $eval;
		3336	}
1850		3337
1851	if ($@) {	3338	if ($@) {
1852	warn "$@";	3339	warn "$@",
1853	warn "while executing safe code '$code'\n";	3340	"while executing safe code '$code'\n",
1854	warn "with arguments " . (join " ", %vars) . "\n";	3341	"with arguments " . (join " ", %vars) . "\n";
1855	}	3342	}
1856		3343
1857	wantarray ? @res : $res[0]	3344	wantarray ? @res : $res[0]
1858	}	3345	}
1859		3346
…		…
1873	=cut	3360	=cut
1874		3361
1875	sub register_script_function {	3362	sub register_script_function {
1876	my ($fun, $cb) = @_;	3363	my ($fun, $cb) = @_;
1877		3364
1878	no strict 'refs';	3365	$fun = "safe::$fun" if $CFG{safe_eval};
1879	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3366	*$fun = $safe_hole->wrap ($cb);
1880	}	3367	}
1881		3368
1882	=back	3369	=back
1883		3370
1884	=cut	3371	=cut
1885		3372
1886	#############################################################################	3373	#############################################################################
		3374	# the server's init and main functions
1887		3375
1888	=head2 EXTENSION DATABASE SUPPORT	3376	sub load_facedata($) {
		3377	my ($path) = @_;
1889		3378
1890	Crossfire maintains a very simple database for extension use. It can	3379	# HACK to clear player env face cache, we need some signal framework
1891	currently store anything that can be serialised using Storable, which	3380	# for this (global event?)
1892	excludes objects.	3381	%ext::player_env::MUSIC_FACE_CACHE = ();
1893		3382
1894	The parameter C<$family> should best start with the name of the extension	3383	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1895	using it, it should be unique.
1896		3384
1897	=over 4	3385	trace "loading facedata from $path\n";
1898		3386
1899	=item $hashref = cf::db_get $family	3387	0 < aio_load $path, my $facedata
		3388	or die "$path: $!";
1900		3389
1901	Return a hashref for use by the extension C<$family>, which can be	3390	$facedata = Coro::Storable::thaw $facedata;
1902	modified. After modifications, you have to call C<cf::db_dirty> or
1903	C<cf::db_sync>.
1904		3391
1905	=item $value = cf::db_get $family => $key	3392	$facedata->{version} == 2
		3393	or cf::cleanup "$path: version mismatch, cannot proceed.";
1906		3394
1907	Returns a single value from the database	3395	# patch in the exptable
1908		3396	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1909	=item cf::db_put $family => $hashref	3397	$facedata->{resource}{"res/exp_table"} = {
1910		3398	type => FT_RSRC,
1911	Stores the given family hashref into the database. Updates are delayed, if	3399	data => $exp_table,
1912	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3400	hash => (Digest::MD5::md5 $exp_table),
1913
1914	=item cf::db_put $family => $key => $value
1915
1916	Stores the given C<$value> in the family hash. Updates are delayed, if you
1917	want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_dirty
1920
1921	Marks the database as dirty, to be updated at a later time.
1922
1923	=item cf::db_sync
1924
1925	Immediately write the database to disk I<if it is dirty>.
1926
1927	=cut
1928
1929	our $DB;
1930
1931	{
1932	my $path = cf::localdir . "/database.pst";
1933
1934	sub db_load() {
1935	$DB = stat $path ? Storable::retrieve $path : { };
1936	}
1937
1938	my $pid;
1939
1940	sub db_save() {
1941	waitpid $pid, 0 if $pid;
1942	if (0 == ($pid = fork)) {
1943	$DB->{_meta}{version} = 1;
1944	Storable::nstore $DB, "$path~";
1945	rename "$path~", $path;
1946	cf::_exit 0 if defined $pid;
1947	}
1948	}
1949
1950	my $dirty;
1951
1952	sub db_sync() {
1953	db_save if $dirty;
1954	undef $dirty;
1955	}
1956
1957	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1958	db_sync;
1959	});	3401	};
		3402	cf::cede_to_tick;
1960		3403
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}	3404	{
		3405	my $faces = $facedata->{faceinfo};
1965		3406
1966	sub db_get($;$) {	3407	while (my ($face, $info) = each %$faces) {
1967	@_ >= 2	3408	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1968	? $DB->{$_[0]}{$_[1]}
1969	: ($DB->{$_[0]} ||= { })
1970	}
1971		3409
1972	sub db_put($$;$) {	3410	cf::face::set_visibility $idx, $info->{visibility};
1973	if (@_ >= 3) {	3411	cf::face::set_magicmap $idx, $info->{magicmap};
1974	$DB->{$_[0]}{$_[1]} = $_[2];	3412	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1975	} else {	3413	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1976	$DB->{$_[0]} = $_[1];
1977	}
1978	db_dirty;
1979	}
1980		3414
1981	cf::global->attach (	3415	cf::cede_to_tick;
1982	prio => 10000,
1983	on_cleanup => sub {
1984	db_sync;
1985	},	3416	}
1986	);
1987	}
1988		3417
1989	#############################################################################	3418	while (my ($face, $info) = each %$faces) {
1990	# the server's main()	3419	next unless $info->{smooth};
1991		3420
1992	sub cfg_load {	3421	my $idx = cf::face::find $face
1993	open my $fh, "<:utf8", cf::confdir . "/config"	3422	or next;
1994	or return;
1995		3423
1996	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...
1997	*CFG = YAML::Syck::Load <$fh>;	3561	*CFG = YAML::XS::Load $config;
1998		3562
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	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};
2000		3567
2001	if (exists $CFG{mlockall}) {	3568	if (exists $CFG{mlockall}) {
2002	eval {	3569	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	3570	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	3571	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	3572	};
2006	warn $@ if $@;	3573	warn $@ if $@;
2007	}	3574	}
2008	}	3575	}
2009		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;
		3603	}
		3604
2010	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
2011	# we must not ever block the main coroutine	3615	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	3616	local $Coro::idle = sub {
2013	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#
2014	(Coro::unblock_sub {	3618	(async {
2015	Event::one_event;	3619	$Coro::current->{desc} = "IDLE BUG HANDLER";
2016	})->();	3620	EV::loop EV::LOOP_ONESHOT;
		3621	})->prio (Coro::PRIO_MAX);
2017	};	3622	};
2018		3623
2019	cfg_load;	3624	evthread_start IO::AIO::poll_fileno;
2020	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
2021	load_extensions;	3647	load_extensions;
2022	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;
2023	}	3667	}
2024		3668
2025	#############################################################################	3669	#############################################################################
2026	# initialisation	3670	# initialisation and cleanup
2027		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
2028	sub reload() {	3875	sub do_reload_perl() {
2029	# can/must only be called in main	3876	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	3877	unless (in_main) {
2031	warn "can only reload from main coroutine\n";	3878	error "can only reload from main coroutine";
2032	return;	3879	return;
2033	}	3880	}
2034		3881
		3882	return if $RELOAD++;
		3883
		3884	my $t1 = AE::time;
		3885
		3886	while ($RELOAD) {
		3887	cf::get_slot 0.1, -1, "reload_perl";
2035	warn "reloading...";	3888	info "reloading...";
2036		3889
2037	my $guard = freeze_mainloop;	3890	trace "entering sync_job";
		3891
		3892	cf::sync_job {
2038	cf::emergency_save;	3893	#cf::emergency_save;
2039		3894
2040	eval {
2041	# if anything goes wrong in here, we should simply crash as we already saved
2042
2043	# cancel all watchers
2044	for (Event::all_watchers) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;
2046	}
2047
2048	# cancel all extension coros	3895	trace "cancelling all extension coros";
2049	$_->cancel for values %EXT_CORO;	3896	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();	3897	%EXT_CORO = ();
2051		3898
2052	# unload all extensions	3899	trace "removing commands";
2053	for (@exts) {	3900	%COMMAND = ();
2054	warn "unloading <$_>";
2055	unload_extension $_;
2056	}
2057		3901
2058	# unload all modules loaded from $LIBDIR	3902	trace "removing ext/exti commands";
2059	while (my ($k, $v) = each %INC) {	3903	%EXTCMD = ();
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3904	%EXTICMD = ();
2061		3905
2062	warn "removing <$k>";	3906	trace "unloading/nuking all extensions";
2063	delete $INC{$k};	3907	for my $pkg (@EXTS) {
		3908	trace "... unloading $pkg";
2064		3909
2065	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;
2067
2068	if (my $cb = $k->can ("unload_module")) {	3910	if (my $cb = $pkg->can ("unload")) {
		3911	eval {
2069	$cb->();	3912	$cb->($pkg);
		3913	1
		3914	} or error "$pkg unloaded, but with errors: $@";
		3915	}
		3916
		3917	trace "... clearing $pkg";
		3918	clear_package $pkg;
2070	}	3919	}
2071		3920
2072	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 $k;
2073	}	3936	}
2074		3937
2075	# sync database to disk
2076	cf::db_sync;
2077	IO::AIO::flush;
2078
2079	# get rid of safe::, as good as possible	3938	trace "getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	3939	clear_package "safe::$_"
2081	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);
2082		3941
2083	# remove register_script_function callbacks	3942	trace "unloading cf.pm \"a bit\"";
2084	# TODO
2085
2086	# unload cf.pm "a bit"
2087	delete $INC{"cf.pm"};	3943	delete $INC{"cf.pm"};
		3944	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2088		3945
2089	# don't, removes xs symbols, too,	3946	# don't, removes xs symbols, too,
2090	# and global variables created in xs	3947	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	3948	#clear_package __PACKAGE__;
2092		3949
2093	# reload cf.pm	3950	info "unload completed, starting to reload now";
		3951
2094	warn "reloading cf.pm";	3952	trace "reloading cf.pm";
2095	require cf;	3953	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3954	cf::_connect_to_perl_1;
2097		3955
2098	# load config and database again	3956	trace "loading config and database again";
2099	cf::cfg_load;	3957	cf::reload_config;
2100	cf::db_load;
2101		3958
2102	# load extensions
2103	warn "load extensions";	3959	trace "loading extensions";
2104	cf::load_extensions;	3960	cf::load_extensions;
2105		3961
2106	# reattach attachments to objects	3962	if ($REATTACH_ON_RELOAD) {
2107	warn "reattach";	3963	trace "reattaching attachments to objects/players";
2108	_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 $RELOAD_WATCHER;
		4002	};
2109	};	4003	};
2110
2111	if ($@) {
2112	warn $@;
2113	warn "error while reloading, exiting.";
2114	exit 1;
2115	}
2116
2117	warn "reloaded successfully";
2118	};
2119
2120	#############################################################################
2121
2122	unless ($LINK_MAP) {
2123	$LINK_MAP = cf::map::new;
2124
2125	$LINK_MAP->width (41);
2126	$LINK_MAP->height (41);
2127	$LINK_MAP->alloc;
2128	$LINK_MAP->path ("{link}");
2129	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2130	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2131
2132	# dirty hack because... archetypes are not yet loaded
2133	Event->timer (
2134	after => 2,
2135	cb => sub {
2136	$_[0]->w->cancel;
2137
2138	# provide some exits "home"
2139	my $exit = cf::object::new "exit";
2140
2141	$exit->slaying ($EMERGENCY_POSITION->[0]);
2142	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2143	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2144
2145	$LINK_MAP->insert ($exit->clone, 19, 19);
2146	$LINK_MAP->insert ($exit->clone, 19, 20);
2147	$LINK_MAP->insert ($exit->clone, 19, 21);
2148	$LINK_MAP->insert ($exit->clone, 20, 19);
2149	$LINK_MAP->insert ($exit->clone, 20, 21);
2150	$LINK_MAP->insert ($exit->clone, 21, 19);
2151	$LINK_MAP->insert ($exit->clone, 21, 20);
2152	$LINK_MAP->insert ($exit->clone, 21, 21);
2153
2154	$exit->destroy;
2155	});
2156
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}	4004	}
2162
2163	register "<global>", __PACKAGE__;
2164		4005
2165	register_command "reload" => sub {	4006	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	4007	my ($who, $arg) = @_;
2167		4008
2168	if ($who->flag (FLAG_WIZ)) {	4009	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");
2170	reload;
2171	$who->message ("end of reload.");	4010	$who->message ("reloading server.");
		4011	async {
		4012	$Coro::current->{desc} = "perl_reload";
		4013	reload_perl;
		4014	};
2172	}	4015	}
2173	};	4016	};
2174		4017
2175	unshift @INC, $LIBDIR;	4018	#############################################################################
2176		4019
2177	$TICK_WATCHER = Event->timer (	4020	my $bug_warning = 0;
2178	reentrant => 0,	4021
2179	prio => 0,	4022	our @WAIT_FOR_TICK;
2180	at => $NEXT_TICK || $TICK,	4023	our @WAIT_FOR_TICK_BEGIN;
2181	data => WF_AUTOCANCEL,	4024
2182	cb => sub {	4025	sub wait_for_tick() {
		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
2183	cf::server_tick; # one server iteration	4048	cf::server_tick; # one server iteration
2184	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;
2186		4049
2187	# if we are delayed by four ticks or more, skip them all	4050	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2189		4051
2190	$TICK_WATCHER->at ($NEXT_TICK);	4052	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2191	$TICK_WATCHER->start;	4053	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2192	},	4054	Coro::async_pool {
2193	);	4055	$Coro::current->{desc} = "runtime saver";
2194
2195	IO::AIO::max_poll_time $TICK * 0.2;
2196
2197	Event->io (
2198	fd => IO::AIO::poll_fileno,
2199	poll => 'r',
2200	prio => 5,
2201	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,
2203	);
2204
2205	Event->timer (
2206	data => WF_AUTOCANCEL,
2207	after => 0,
2208	interval => 10,
2209	cb => sub {
2210	(Coro::unblock_sub {
2211	write_runtime	4056	write_runtime_sync
2212	or warn "ERROR: unable to write runtime file: $!";	4057	or error "ERROR: unable to write runtime file: $!";
2213	})->();	4058	};
2214	},	4059	}
2215	);	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;
2216		4175
2217	END { cf::emergency_save }	4176	END { cf::emergency_save }
2218		4177
2219	1	4178	1
2220		4179

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