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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 1.553 by root, Tue May 18 21:30:16 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 $ref = cf::yaml_load $scalar
		363
		364	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		365
		366	=cut
		367
		368	sub fork_call(&@);
		369
		370	sub yaml_load($) {
		371	fork_call { YAML::XS::Load $_[0] } @_
		372	}
		373
		374	=item cf::post_init { BLOCK }
		375
		376	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		377	but I<before> the server starts ticking again.
		378
		379	The codeblock will have a single boolean argument to indicate whether this
		380	is a reload or not.
		381
		382	=cut
		383
		384	sub post_init(&) {
		385	push @POST_INIT, shift;
		386	}
		387
		388	sub _post_init {
		389	trace "running post_init jobs";
		390
		391	# run them in parallel...
		392
		393	my @join;
		394
		395	while () {
		396	push @join, map &Coro::async ($_, 0), @POST_INIT;
		397	@POST_INIT = ();
		398
		399	@join or last;
		400
		401	(pop @join)->join;
		402	}
182	}	403	}
183		404
184	=item cf::lock_wait $string	405	=item cf::lock_wait $string
185		406
186	Wait until the given lock is available. See cf::lock_acquire.	407	Wait until the given lock is available. See cf::lock_acquire.
187		408
188	=item my $lock = cf::lock_acquire $string	409	=item my $lock = cf::lock_acquire $string
189		410
190	Wait until the given lock is available and then acquires it and returns	411	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,	412	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	413	for example when the coroutine gets canceled), the lock is automatically
193	returned.	414	returned.
194		415
		416	Locks are *not* recursive, locking from the same coro twice results in a
		417	deadlocked coro.
		418
195	Lock names should begin with a unique identifier (for example, cf::map::find	419	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	420	uses map_find and cf::map::load uses map_load).
197		421
198	=cut	422	=item $locked = cf::lock_active $string
199		423
200	our %LOCK;	424	Return true if the lock is currently active, i.e. somebody has locked it.
		425
		426	=cut
		427
		428	our $LOCKS = new Coro::SemaphoreSet;
201		429
202	sub lock_wait($) {	430	sub lock_wait($) {
203	my ($key) = @_;	431	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	432	}
211		433
212	sub lock_acquire($) {	434	sub lock_acquire($) {
213	my ($key) = @_;	435	$LOCKS->guard ($_[0])
		436	}
214		437
215	# wait, to be sure we are not locked	438	sub lock_active($) {
216	lock_wait $key;	439	$LOCKS->count ($_[0]) < 1
		440	}
217		441
218	$LOCK{$key} = [];	442	sub freeze_mainloop {
		443	tick_inhibit_inc;
219		444
220	Coro::guard {	445	&Guard::guard (\&tick_inhibit_dec);
221	# wake up all waiters, to be on the safe side	446	}
222	$_->ready for @{ delete $LOCK{$key} };	447
		448	=item cf::periodic $interval, $cb
		449
		450	Like EV::periodic, but randomly selects a starting point so that the actions
		451	get spread over time.
		452
		453	=cut
		454
		455	sub periodic($$) {
		456	my ($interval, $cb) = @_;
		457
		458	my $start = rand List::Util::min 180, $interval;
		459
		460	EV::periodic $start, $interval, 0, $cb
		461	}
		462
		463	=item cf::get_slot $time[, $priority[, $name]]
		464
		465	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		466	This call blocks and returns only when you have at least C<$time> seconds
		467	of cpu time till the next tick. The slot is only valid till the next cede.
		468
		469	The optional C<$name> can be used to identify the job to run. It might be
		470	used for statistical purposes and should identify the same time-class.
		471
		472	Useful for short background jobs.
		473
		474	=cut
		475
		476	our @SLOT_QUEUE;
		477	our $SLOT_QUEUE;
		478	our $SLOT_DECAY = 0.9;
		479
		480	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		481	$SLOT_QUEUE = Coro::async {
		482	$Coro::current->desc ("timeslot manager");
		483
		484	my $signal = new Coro::Signal;
		485	my $busy;
		486
		487	while () {
		488	next_job:
		489
		490	my $avail = cf::till_tick;
		491
		492	for (0 .. $#SLOT_QUEUE) {
		493	if ($SLOT_QUEUE[$_][0] <= $avail) {
		494	$busy = 0;
		495	my $job = splice @SLOT_QUEUE, $_, 1, ();
		496	$job->[2]->send;
		497	Coro::cede;
		498	goto next_job;
		499	} else {
		500	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		501	}
		502	}
		503
		504	if (@SLOT_QUEUE) {
		505	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		506	push @cf::WAIT_FOR_TICK, $signal;
		507	$signal->wait;
		508	} else {
		509	$busy = 0;
		510	Coro::schedule;
		511	}
223	}	512	}
		513	};
		514
		515	sub get_slot($;$$) {
		516	return if tick_inhibit || $Coro::current == $Coro::main;
		517
		518	my ($time, $pri, $name) = @_;
		519
		520	$time = clamp $time, 0.01, $TICK * .6;
		521
		522	my $sig = new Coro::Signal;
		523
		524	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		525	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		526	$SLOT_QUEUE->ready;
		527	$sig->wait;
224	}	528	}
225		529
226	=item cf::async { BLOCK }	530	=item cf::async { BLOCK }
227		531
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	532	Currently the same as Coro::async_pool, meaning you cannot use
229	error instead of exiting the server in case of a problem.	533	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		534	thing you are allowed to do is call C<prio> on it.
230		535
231	=cut	536	=cut
232		537
233	sub async(&) {	538	BEGIN { *async = \&Coro::async_pool }
234	my ($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	$guard
248	}
249		539
250	=item cf::sync_job { BLOCK }	540	=item cf::sync_job { BLOCK }
251		541
252	The design of crossfire+ requires that the main coro ($Coro::main) is	542	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	543	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	544	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		545	acceptable.
255		546
256	If it must be done, put the blocking parts into C<sync_job>. This will run	547	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	548	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	549	server will be frozen during this time, so the block should either finish
259	fast or be very important.	550	fast or be very important.
…		…
261	=cut	552	=cut
262		553
263	sub sync_job(&) {	554	sub sync_job(&) {
264	my ($job) = @_;	555	my ($job) = @_;
265		556
266	if ($Coro::current == $Coro::main) {	557	if (in_main) {
		558	my $time = AE::time;
		559
267	# this is the main coro, too bad, we have to block	560	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	561	# till the operation succeeds, freezing the server :/
269		562
270	# TODO: use suspend/resume instead	563	#LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	564
272	my $freeze_guard = freeze_mainloop;	565	my $freeze_guard = freeze_mainloop;
273		566
274	my $busy = 1;	567	my $busy = 1;
275	my @res;	568	my @res;
276		569
277	(Coro::async {	570	(async {
		571	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	572	@res = eval { $job->() };
279	warn $@ if $@;	573	error $@ if $@;
280	undef $busy;	574	undef $busy;
281	})->prio (Coro::PRIO_MAX);	575	})->prio (Coro::PRIO_MAX);
282		576
283	while ($busy) {	577	while ($busy) {
		578	if (Coro::nready) {
284	Coro::cede_notself;	579	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	580	} else {
		581	EV::loop EV::LOOP_ONESHOT;
286	}	582	}
		583	}
		584
		585	my $time = AE::time - $time;
		586
		587	$TICK_START += $time; # do not account sync jobs to server load
287		588
288	wantarray ? @res : $res[0]	589	wantarray ? @res : $res[0]
289	} else {	590	} else {
290	# we are in another coroutine, how wonderful, everything just works	591	# we are in another coroutine, how wonderful, everything just works
291		592
292	$job->()	593	$job->()
293	}	594	}
294	}	595	}
295		596
296	=item $coro = cf::coro { BLOCK }	597	=item $coro = cf::async_ext { BLOCK }
297		598
298	Creates and returns a new coro. This coro is automcatially being canceled	599	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	600	extension calling this is being unloaded.
300		601
301	=cut	602	=cut
302		603
303	sub coro(&) {	604	sub async_ext(&) {
304	my $cb = shift;	605	my $cb = shift;
305		606
306	my $coro = &cf::async ($cb);	607	my $coro = &Coro::async ($cb);
307		608
308	$coro->on_destroy (sub {	609	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	610	delete $EXT_CORO{$coro+0};
310	});	611	});
311	$EXT_CORO{$coro+0} = $coro;	612	$EXT_CORO{$coro+0} = $coro;
312		613
313	$coro	614	$coro
314	}	615	}
315		616
316	sub write_runtime {	617	=item fork_call { }, @args
317	my $runtime = cf::localdir . "/runtime";
318		618
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	619	Executes the given code block with the given arguments in a seperate
320	or return;	620	process, returning the results. Everything must be serialisable with
		621	Coro::Storable. May, of course, block. Note that the executed sub may
		622	never block itself or use any form of event handling.
321		623
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	624	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		625
326	aio_fsync $fh	626	sub post_fork {
327	and return;	627	reset_signals;
		628	}
328		629
329	close $fh	630	sub fork_call(&@) {
330	or return;	631	my ($cb, @args) = @_;
331		632
332	aio_rename "$runtime~", $runtime	633	# we seemingly have to make a local copy of the whole thing,
333	and return;	634	# otherwise perl prematurely frees the stuff :/
		635	# TODO: investigate and fix (likely this will be rather laborious)
334		636
		637	my @res = Coro::Util::fork_eval {
		638	cf::post_fork;
		639	&$cb
		640	} @args;
		641
		642	wantarray ? @res : $res[-1]
		643	}
		644
		645	sub objinfo {
335	1	646	(
		647	"counter value" => cf::object::object_count,
		648	"objects created" => cf::object::create_count,
		649	"objects destroyed" => cf::object::destroy_count,
		650	"freelist size" => cf::object::free_count,
		651	"allocated objects" => cf::object::objects_size,
		652	"active objects" => cf::object::actives_size,
		653	)
		654	}
		655
		656	=item $coin = coin_from_name $name
		657
		658	=cut
		659
		660	our %coin_alias = (
		661	"silver" => "silvercoin",
		662	"silvercoin" => "silvercoin",
		663	"silvercoins" => "silvercoin",
		664	"gold" => "goldcoin",
		665	"goldcoin" => "goldcoin",
		666	"goldcoins" => "goldcoin",
		667	"platinum" => "platinacoin",
		668	"platinumcoin" => "platinacoin",
		669	"platinumcoins" => "platinacoin",
		670	"platina" => "platinacoin",
		671	"platinacoin" => "platinacoin",
		672	"platinacoins" => "platinacoin",
		673	"royalty" => "royalty",
		674	"royalties" => "royalty",
		675	);
		676
		677	sub coin_from_name($) {
		678	$coin_alias{$_[0]}
		679	? cf::arch::find $coin_alias{$_[0]}
		680	: undef
		681	}
		682
		683	=item $value = cf::db_get $family => $key
		684
		685	Returns a single value from the environment database.
		686
		687	=item cf::db_put $family => $key => $value
		688
		689	Stores the given C<$value> in the family. It can currently store binary
		690	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		691
		692	=item $db = cf::db_table "name"
		693
		694	Create and/or open a new database table. The string must not be "db" and must be unique
		695	within each server.
		696
		697	=cut
		698
		699	sub db_table($) {
		700	cf::error "db_get called from main context"
		701	if $Coro::current == $Coro::main;
		702
		703	my ($name) = @_;
		704	my $db = BDB::db_create $DB_ENV;
		705
		706	eval {
		707	$db->set_flags (BDB::CHKSUM);
		708
		709	utf8::encode $name;
		710	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		711	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		712	cf::cleanup "db_open(db): $!" if $!;
		713	};
		714	cf::cleanup "db_open(db): $@" if $@;
		715
		716	$db
		717	}
		718
		719	our $DB;
		720
		721	sub db_init {
		722	$DB ||= db_table "db";
		723	}
		724
		725	sub db_get($$) {
		726	my $key = "$_[0]/$_[1]";
		727
		728	cf::error "db_get called from main context"
		729	if $Coro::current == $Coro::main;
		730
		731	BDB::db_get $DB, undef, $key, my $data;
		732
		733	$! ? ()
		734	: $data
		735	}
		736
		737	sub db_put($$$) {
		738	BDB::dbreq_pri 4;
		739	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		740	}
		741
		742	=item cf::cache $id => [$paths...], $processversion => $process
		743
		744	Generic caching function that returns the value of the resource $id,
		745	caching and regenerating as required.
		746
		747	This function can block.
		748
		749	=cut
		750
		751	sub cache {
		752	my ($id, $src, $processversion, $process) = @_;
		753
		754	my $meta =
		755	join "\x00",
		756	$processversion,
		757	map {
		758	aio_stat $_
		759	and Carp::croak "$_: $!";
		760
		761	($_, (stat _)[7,9])
		762	} @$src;
		763
		764	my $dbmeta = db_get cache => "$id/meta";
		765	if ($dbmeta ne $meta) {
		766	# changed, we may need to process
		767
		768	my @data;
		769	my $md5;
		770
		771	for (0 .. $#$src) {
		772	0 <= aio_load $src->[$_], $data[$_]
		773	or Carp::croak "$src->[$_]: $!";
		774	}
		775
		776	# if processing is expensive, check
		777	# checksum first
		778	if (1) {
		779	$md5 =
		780	join "\x00",
		781	$processversion,
		782	map {
		783	cf::cede_to_tick;
		784	($src->[$_], Digest::MD5::md5_hex $data[$_])
		785	} 0.. $#$src;
		786
		787
		788	my $dbmd5 = db_get cache => "$id/md5";
		789	if ($dbmd5 eq $md5) {
		790	db_put cache => "$id/meta", $meta;
		791
		792	return db_get cache => "$id/data";
		793	}
		794	}
		795
		796	my $t1 = Time::HiRes::time;
		797	my $data = $process->(\@data);
		798	my $t2 = Time::HiRes::time;
		799
		800	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		801
		802	db_put cache => "$id/data", $data;
		803	db_put cache => "$id/md5" , $md5;
		804	db_put cache => "$id/meta", $meta;
		805
		806	return $data;
		807	}
		808
		809	db_get cache => "$id/data"
		810	}
		811
		812	=item cf::datalog type => key => value, ...
		813
		814	Log a datalog packet of the given type with the given key-value pairs.
		815
		816	=cut
		817
		818	sub datalog($@) {
		819	my ($type, %kv) = @_;
		820	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
336	}	821	}
337		822
338	=back	823	=back
339		824
340	=cut	825	=cut
341		826
342	#############################################################################	827	#############################################################################
343		828
344	package cf::path;
345
346	sub new {
347	my ($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	829	=head2 ATTACHABLE OBJECTS
465		830
466	Many objects in crossfire are so-called attachable objects. That means you can	831	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")	832	attach callbacks/event handlers (a collection of which is called an "attachment")
468	to it. All such attachable objects support the following methods.	833	to it. All such attachable objects support the following methods.
469		834
470	In the following description, CLASS can be any of C<global>, C<object>	835	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	836	C<player>, C<client> or C<map> (i.e. the attachable objects in
472	crossfire+).	837	Deliantra).
473		838
474	=over 4	839	=over 4
475		840
476	=item $attachable->attach ($attachment, key => $value...)	841	=item $attachable->attach ($attachment, key => $value...)
477		842
…		…
521	=item cf::CLASS::attachment $name, ...	886	=item cf::CLASS::attachment $name, ...
522		887
523	Register an attachment by C<$name> through which attachable objects of the	888	Register an attachment by C<$name> through which attachable objects of the
524	given CLASS can refer to this attachment.	889	given CLASS can refer to this attachment.
525		890
526	Some classes such as crossfire maps and objects can specify attachments	891	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.	892	that are attached at load/instantiate time, thus the need for a name.
528		893
529	These calls expect any number of the following handler/hook descriptions:	894	These calls expect any number of the following handler/hook descriptions:
530		895
531	=over 4	896	=over 4
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	956	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	957	our @CB_MAP = ();
593		958
594	my %attachment;	959	my %attachment;
595		960
		961	sub cf::attachable::thawer_merge {
		962	# simply override everything except _meta
		963	local $_[0]{_meta};
		964	%{$_[0]} = %{$_[1]};
		965	}
		966
596	sub _attach_cb($$$$) {	967	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	968	my ($registry, $event, $prio, $cb) = @_;
598		969
599	use sort 'stable';	970	use sort 'stable';
600		971
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	1005	$registry = $CB_TYPE[$object_type] ||= [];
635		1006
636	} elsif ($type eq "subtype") {	1007	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	1008	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	1009	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1010	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		1011
641	} elsif ($type eq "package") {	1012	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	1013	my $pkg = shift @arg;
643		1014
644	while (my ($name, $id) = each %cb_id) {	1015	while (my ($name, $id) = each %cb_id) {
…		…
649		1020
650	} elsif (exists $cb_id{$type}) {	1021	} elsif (exists $cb_id{$type}) {
651	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1022	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
652		1023
653	} elsif (ref $type) {	1024	} elsif (ref $type) {
654	warn "attaching objects not supported, ignoring.\n";	1025	error "attaching objects not supported, ignoring.\n";
655		1026
656	} else {	1027	} else {
657	shift @arg;	1028	shift @arg;
658	warn "attach argument '$type' not supported, ignoring.\n";	1029	error "attach argument '$type' not supported, ignoring.\n";
659	}	1030	}
660	}	1031	}
661	}	1032	}
662		1033
663	sub _object_attach {	1034	sub _object_attach {
…		…
673	_attach $registry, $klass, @attach;	1044	_attach $registry, $klass, @attach;
674	}	1045	}
675		1046
676	$obj->{$name} = \%arg;	1047	$obj->{$name} = \%arg;
677	} else {	1048	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	1049	info "object uses attachment '$name' which is not available, postponing.\n";
679	}	1050	}
680		1051
681	$obj->{_attachment}{$name} = undef;	1052	$obj->{_attachment}{$name} = undef;
682	}	1053	}
683		1054
…		…
685	if (ref $_[0]) {	1056	if (ref $_[0]) {
686	_object_attach @_;	1057	_object_attach @_;
687	} else {	1058	} else {
688	_attach shift->_attach_registry, @_;	1059	_attach shift->_attach_registry, @_;
689	}	1060	}
		1061	_recalc_want;
690	};	1062	};
691		1063
692	# all those should be optimised	1064	# all those should be optimised
693	sub cf::attachable::detach {	1065	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	1066	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	1069	delete $obj->{_attachment}{$name};
698	reattach ($obj);	1070	reattach ($obj);
699	} else {	1071	} else {
700	Carp::croak "cannot, currently, detach class attachments";	1072	Carp::croak "cannot, currently, detach class attachments";
701	}	1073	}
		1074	_recalc_want;
702	};	1075	};
703		1076
704	sub cf::attachable::attached {	1077	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	1078	my ($obj, $name) = @_;
706		1079
…		…
721	";	1094	";
722	die if $@;	1095	die if $@;
723	}	1096	}
724		1097
725	our $override;	1098	our $override;
726	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1099	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
727		1100
728	sub override {	1101	sub override {
729	$override = 1;	1102	$override = 1;
730	@invoke_results = ();	1103	@INVOKE_RESULTS = (@_);
731	}	1104	}
732		1105
733	sub do_invoke {	1106	sub do_invoke {
734	my $event = shift;	1107	my $event = shift;
735	my $callbacks = shift;	1108	my $callbacks = shift;
736		1109
737	@invoke_results = ();	1110	@INVOKE_RESULTS = ();
738		1111
739	local $override;	1112	local $override;
740		1113
741	for (@$callbacks) {	1114	for (@$callbacks) {
742	eval { &{$_->[1]} };	1115	eval { &{$_->[1]} };
743		1116
744	if ($@) {	1117	if ($@) {
745	warn "$@";
746	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1118	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
747	override;	1119	override;
748	}	1120	}
749		1121
750	return 1 if $override;	1122	return 1 if $override;
751	}	1123	}
752		1124
753	0	1125	0
754	}	1126	}
755		1127
756	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1128	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
757		1129
758	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1130	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
759		1131
760	Generate an object-specific event with the given arguments.	1132	Generate an object-specific event with the given arguments.
761		1133
762	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1134	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	1135	removed in future versions), and there is no public API to access override
764	results (if you must, access C<@cf::invoke_results> directly).	1136	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		1137
766	=back	1138	=back
767		1139
768	=cut	1140	=cut
769		1141
770	#############################################################################	1142	#############################################################################
771	# object support	1143	# object support
		1144
		1145	sub _object_equal($$);
		1146	sub _object_equal($$) {
		1147	my ($a, $b) = @_;
		1148
		1149	return 0 unless (ref $a) eq (ref $b);
		1150
		1151	if ("HASH" eq ref $a) {
		1152	my @ka = keys %$a;
		1153	my @kb = keys %$b;
		1154
		1155	return 0 if @ka != @kb;
		1156
		1157	for (0 .. $#ka) {
		1158	return 0 unless $ka[$_] eq $kb[$_];
		1159	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1160	}
		1161
		1162	} elsif ("ARRAY" eq ref $a) {
		1163
		1164	return 0 if @$a != @$b;
		1165
		1166	for (0 .. $#$a) {
		1167	return 0 unless _object_equal $a->[$_], $b->[$_];
		1168	}
		1169
		1170	} elsif ($a ne $b) {
		1171	return 0;
		1172	}
		1173
		1174	1
		1175	}
		1176
		1177	our $SLOW_MERGES;#d#
		1178	sub _can_merge {
		1179	my ($ob1, $ob2) = @_;
		1180
		1181	++$SLOW_MERGES;#d#
		1182
		1183	# we do the slow way here
		1184	return _object_equal $ob1, $ob2
		1185	}
772		1186
773	sub reattach {	1187	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	1188	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	1189	my ($obj) = @_;
		1190
		1191	# no longer needed after getting rid of delete_package?
		1192	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		1193
777	my $registry = $obj->registry;	1194	my $registry = $obj->registry;
778		1195
779	@$registry = ();	1196	@$registry = ();
780		1197
…		…
785	for (@$attach) {	1202	for (@$attach) {
786	my ($klass, @attach) = @$_;	1203	my ($klass, @attach) = @$_;
787	_attach $registry, $klass, @attach;	1204	_attach $registry, $klass, @attach;
788	}	1205	}
789	} else {	1206	} else {
790	warn "object uses attachment '$name' that is not available, postponing.\n";	1207	info "object uses attachment '$name' that is not available, postponing.\n";
791	}	1208	}
792	}	1209	}
793	}	1210	}
794		1211
795	cf::attachable->attach (	1212	cf::attachable->attach (
796	prio => -1000000,	1213	prio => -1000000,
797	on_instantiate => sub {	1214	on_instantiate => sub {
798	my ($obj, $data) = @_;	1215	my ($obj, $data) = @_;
799		1216
800	$data = from_json $data;	1217	$data = decode_json $data;
801		1218
802	for (@$data) {	1219	for (@$data) {
803	my ($name, $args) = @$_;	1220	my ($name, $args) = @$_;
804		1221
805	$obj->attach ($name, %{$args || {} });	1222	$obj->attach ($name, %{$args || {} });
…		…
821	sub object_freezer_save {	1238	sub object_freezer_save {
822	my ($filename, $rdata, $objs) = @_;	1239	my ($filename, $rdata, $objs) = @_;
823		1240
824	sync_job {	1241	sync_job {
825	if (length $$rdata) {	1242	if (length $$rdata) {
		1243	utf8::decode (my $decname = $filename);
826	warn sprintf "saving %s (%d,%d)\n",	1244	trace sprintf "saving %s (%d,%d)\n",
827	$filename, length $$rdata, scalar @$objs;	1245	$decname, length $$rdata, scalar @$objs
		1246	if $VERBOSE_IO;
828		1247
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1248	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1249	aio_chmod $fh, SAVE_MODE;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1250	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1251	if ($cf::USE_FSYNC) {
		1252	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;	1253	aio_fsync $fh;
		1254	}
833	close $fh;	1255	aio_close $fh;
834		1256
835	if (@$objs) {	1257	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1258	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	1259	aio_chmod $fh, SAVE_MODE;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	1260	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	1261	aio_write $fh, 0, (length $data), $data, 0;
		1262	if ($cf::USE_FSYNC) {
		1263	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;	1264	aio_fsync $fh;
		1265	}
841	close $fh;	1266	aio_close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	1267	aio_rename "$filename.pst~", "$filename.pst";
843	}	1268	}
844	} else {	1269	} else {
845	aio_unlink "$filename.pst";	1270	aio_unlink "$filename.pst";
846	}	1271	}
847		1272
848	aio_rename "$filename~", $filename;	1273	aio_rename "$filename~", $filename;
		1274
		1275	$filename =~ s%/[^/]+$%%;
		1276	aio_pathsync $filename if $cf::USE_FSYNC;
849	} else {	1277	} else {
850	warn "FATAL: $filename~: $!\n";	1278	error "unable to save objects: $filename~: $!\n";
851	}	1279	}
852	} else {	1280	} else {
853	aio_unlink $filename;	1281	aio_unlink $filename;
854	aio_unlink "$filename.pst";	1282	aio_unlink "$filename.pst";
855	}	1283	}
856	}	1284	};
857	}	1285	}
858		1286
859	sub object_freezer_as_string {	1287	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	1288	my ($rdata, $objs) = @_;
861		1289
…		…
873	or return;	1301	or return;
874		1302
875	unless (aio_stat "$filename.pst") {	1303	unless (aio_stat "$filename.pst") {
876	(aio_load "$filename.pst", $av) >= 0	1304	(aio_load "$filename.pst", $av) >= 0
877	or return;	1305	or return;
		1306
878	$av = eval { (Storable::thaw $av)->{objs} };	1307	my $st = eval { Coro::Storable::thaw $av };
		1308	$av = $st->{objs};
879	}	1309	}
880		1310
		1311	utf8::decode (my $decname = $filename);
881	warn sprintf "loading %s (%d)\n",	1312	trace sprintf "loading %s (%d,%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1313	$decname, length $data, scalar @{$av || []}
		1314	if $VERBOSE_IO;
		1315
883	return ($data, $av);	1316	($data, $av)
884	}	1317	}
		1318
		1319	=head2 COMMAND CALLBACKS
		1320
		1321	=over 4
		1322
		1323	=cut
885		1324
886	#############################################################################	1325	#############################################################################
887	# command handling &c	1326	# command handling &c
888		1327
889	=item cf::register_command $name => \&callback($ob,$args);	1328	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1341	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1342	}
904		1343
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1344	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1345
907	Register a callbackf ro execution when the client sends an extcmd packet.	1346	Register a callback for execution when the client sends an (synchronous)
		1347	extcmd packet. Ext commands will be processed in the order they are
		1348	received by the server, like other user commands. The first argument is
		1349	the logged-in player. Ext commands can only be processed after a player
		1350	has logged in successfully.
908		1351
909	If the callback returns something, it is sent back as if reply was being	1352	If the callback returns something, it is sent back as if reply was being
910	called.	1353	called.
911		1354
		1355	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1356
		1357	Register a callback for execution when the client sends an (asynchronous)
		1358	exticmd packet. Exti commands are processed by the server as soon as they
		1359	are received, i.e. out of order w.r.t. other commands. The first argument
		1360	is a client socket. Exti commands can be received anytime, even before
		1361	log-in.
		1362
		1363	If the callback returns something, it is sent back as if reply was being
		1364	called.
		1365
912	=cut	1366	=cut
913		1367
914	sub register_extcmd {	1368	sub register_extcmd {
915	my ($name, $cb) = @_;	1369	my ($name, $cb) = @_;
916		1370
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1371	$EXTCMD{$name} = $cb;
921	}	1372	}
		1373
		1374	sub register_exticmd {
		1375	my ($name, $cb) = @_;
		1376
		1377	$EXTICMD{$name} = $cb;
		1378	}
		1379
		1380	use File::Glob ();
922		1381
923	cf::player->attach (	1382	cf::player->attach (
924	on_command => sub {	1383	on_unknown_command => sub {
925	my ($pl, $name, $params) = @_;	1384	my ($pl, $name, $params) = @_;
926		1385
927	my $cb = $COMMAND{$name}	1386	my $cb = $COMMAND{$name}
928	or return;	1387	or return;
929		1388
…		…
934	cf::override;	1393	cf::override;
935	},	1394	},
936	on_extcmd => sub {	1395	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1396	my ($pl, $buf) = @_;
938		1397
939	my $msg = eval { from_json $buf };	1398	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1399
941	if (ref $msg) {	1400	if (ref $msg) {
		1401	my ($type, $reply, @payload) =
		1402	"ARRAY" eq ref $msg
		1403	? @$msg
		1404	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1405
		1406	my @reply;
		1407
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1408	if (my $cb = $EXTCMD{$type}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1409	@reply = $cb->($pl, @payload);
944	$pl->ext_reply ($msg->{msgid}, %reply);
945	}
946	}	1410	}
		1411
		1412	$pl->ext_reply ($reply, @reply)
		1413	if $reply;
		1414
947	} else {	1415	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1416	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
949	}	1417	}
950		1418
951	cf::override;	1419	cf::override;
952	},	1420	},
953	);	1421	);
954		1422
955	sub register {	1423	# "readahead" all extensions
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	1424	sub cache_extensions {
962	my ($path) = @_;	1425	my $grp = IO::AIO::aio_group;
963		1426
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1427	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
965	my $base = $1;	1428	for (grep /\.ext$/, @{$_[0]}) {
966	my $pkg = $1;	1429	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	}	1430	}
1014	}	1431	};
1015		1432
1016	# remove extcmds	1433	$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	}	1434	}
1030		1435
1031	sub load_extensions {	1436	sub load_extensions {
		1437	info "loading extensions...";
		1438
		1439	cf::sync_job {
		1440	my %todo;
		1441
1032	for my $ext (<$LIBDIR/*.ext>) {	1442	for my $path (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;	1443	next unless -r $path;
1034	eval {	1444
1035	load_extension $ext;	1445	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1446	my $base = $1;
		1447	my $pkg = $1;
		1448	$pkg =~ s/[^[:word:]]/_/g;
		1449	$pkg = "ext::$pkg";
		1450
		1451	open my $fh, "<:utf8", $path
		1452	or die "$path: $!";
		1453
		1454	my $source = do { local $/; <$fh> };
		1455
		1456	my %ext = (
		1457	path => $path,
		1458	base => $base,
		1459	pkg => $pkg,
		1460	);
		1461
		1462	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1463	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1464
		1465	$ext{source} =
		1466	"package $pkg; use common::sense;\n"
		1467	. "#line 1 \"$path\"\n{\n"
		1468	. $source
		1469	. "\n};\n1";
		1470
		1471	$todo{$base} = \%ext;
		1472	}
		1473
		1474	my $pass = 0;
		1475	my %done;
		1476	while (%todo) {
		1477	my $progress;
		1478
		1479	++$pass;
		1480
		1481	ext:
		1482	while (my ($k, $v) = each %todo) {
		1483	for (split /,\s*/, $v->{meta}{depends}) {
		1484	next ext
		1485	unless exists $done{$_};
		1486	}
		1487
		1488	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1489
		1490	my $active = eval $v->{source};
		1491
		1492	if (length $@) {
		1493	error "$v->{path}: $@\n";
		1494
		1495	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1496	if exists $v->{meta}{mandatory};
		1497
		1498	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1499	delete $todo{$k};
		1500	} else {
		1501	$done{$k} = delete $todo{$k};
		1502	push @EXTS, $v->{pkg};
		1503	$progress = 1;
		1504
		1505	info "$v->{base}: extension inactive.\n"
		1506	unless $active;
		1507	}
1036	1	1508	}
1037	} or warn "$ext not loaded: $@";	1509
		1510	unless ($progress) {
		1511	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1512
		1513	while (my ($k, $v) = each %todo) {
		1514	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1515	if exists $v->{meta}{mandatory};
		1516	}
		1517	}
		1518	}
1038	}	1519	};
1039	}	1520	}
1040		1521
1041	#############################################################################	1522	#############################################################################
1042	# load/save/clean perl data associated with a map
1043		1523
1044	*cf::mapsupport::on_clean = sub {	1524	=back
		1525
		1526	=head2 CORE EXTENSIONS
		1527
		1528	Functions and methods that extend core deliantra objects.
		1529
		1530	=cut
		1531
		1532	package cf::player;
		1533
		1534	use Coro::AIO;
		1535
		1536	=head3 cf::player
		1537
		1538	=over 4
		1539
		1540	=item cf::player::num_playing
		1541
		1542	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1543
		1544	=cut
		1545
		1546	sub num_playing {
		1547	scalar grep
		1548	$_->ob->map
		1549	&& !$_->hidden
		1550	&& !$_->ob->flag (cf::FLAG_WIZ),
		1551	cf::player::list
		1552	}
		1553
		1554	=item cf::player::find $login
		1555
		1556	Returns the given player object, loading it if necessary (might block).
		1557
		1558	=cut
		1559
		1560	sub playerdir($) {
		1561	"$PLAYERDIR/"
		1562	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1563	}
		1564
		1565	sub path($) {
		1566	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1567
		1568	(playerdir $login) . "/playerdata"
		1569	}
		1570
		1571	sub find_active($) {
		1572	$cf::PLAYER{$_[0]}
		1573	and $cf::PLAYER{$_[0]}->active
		1574	and $cf::PLAYER{$_[0]}
		1575	}
		1576
		1577	sub exists($) {
1045	my ($map) = @_;	1578	my ($login) = @_;
1046		1579
1047	my $path = $map->tmpname;	1580	$cf::PLAYER{$login}
1048	defined $path or return;	1581	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	}	1582	}
1061		1583
1062	# TODO: compatibility cruft, remove when no longer needed	1584	sub find($) {
		1585	return $cf::PLAYER{$_[0]} || do {
		1586	my $login = $_[0];
		1587
		1588	my $guard = cf::lock_acquire "user_find:$login";
		1589
		1590	$cf::PLAYER{$_[0]} || do {
		1591	# rename old playerfiles to new ones
		1592	#TODO: remove when no longer required
		1593	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1594	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1595	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1596	aio_unlink +(playerdir $login) . "/$login.pl";
		1597
		1598	my $f = new_from_file cf::object::thawer path $login
		1599	or return;
		1600
		1601	my $pl = cf::player::load_pl $f
		1602	or return;
		1603
		1604	local $cf::PLAYER_LOADING{$login} = $pl;
		1605	$f->resolve_delayed_derefs;
		1606	$cf::PLAYER{$login} = $pl
		1607	}
		1608	}
		1609	}
		1610
1063	cf::player->attach (	1611	cf::player->attach (
1064	on_load => sub {	1612	on_load => sub {
1065	my ($pl, $path) = @_;	1613	my ($pl, $path) = @_;
1066		1614
1067	for my $o (all_objects $pl->ob) {	1615	# restore slots saved in save, below
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1616	my $slots = delete $pl->{_slots};
1069	$o->set_ob_key_value ("_perl_data");
1070		1617
1071	%$o = %{ Storable::thaw pack "H*", $value };	1618	$pl->ob->current_weapon ($slots->[0]);
1072	}	1619	$pl->combat_ob ($slots->[1]);
1073	}	1620	$pl->ranged_ob ($slots->[2]);
1074	},	1621	},
1075	);	1622	);
1076		1623
1077	#############################################################################	1624	sub save($) {
		1625	my ($pl) = @_;
1078		1626
1079	=head2 CORE EXTENSIONS	1627	return if $pl->{deny_save};
1080		1628
1081	Functions and methods that extend core crossfire objects.	1629	my $path = path $pl;
		1630	my $guard = cf::lock_acquire "user_save:$path";
1082		1631
1083	=head3 cf::player	1632	return if $pl->{deny_save};
		1633
		1634	aio_mkdir playerdir $pl, 0770;
		1635	$pl->{last_save} = $cf::RUNTIME;
		1636
		1637	cf::get_slot 0.01;
		1638
		1639	# save slots, to be restored later
		1640	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1641
		1642	$pl->save_pl ($path);
		1643	cf::cede_to_tick;
		1644	}
		1645
		1646	sub new($) {
		1647	my ($login) = @_;
		1648
		1649	my $self = create;
		1650
		1651	$self->ob->name ($login);
		1652	$self->{deny_save} = 1;
		1653
		1654	$cf::PLAYER{$login} = $self;
		1655
		1656	$self
		1657	}
		1658
		1659	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1660
		1661	=cut
		1662
		1663	sub send_msg {
		1664	my $ns = shift->ns
		1665	or return;
		1666	$ns->send_msg (@_);
		1667	}
		1668
		1669	=item $pl->quit_character
		1670
		1671	Nukes the player without looking back. If logged in, the connection will
		1672	be destroyed. May block for a long time.
		1673
		1674	=cut
		1675
		1676	sub quit_character {
		1677	my ($pl) = @_;
		1678
		1679	my $name = $pl->ob->name;
		1680
		1681	$pl->{deny_save} = 1;
		1682	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1683
		1684	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1685	$pl->deactivate;
		1686
		1687	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1688	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1689	ext::highscore::check ($pl->ob);
		1690
		1691	$pl->ns->destroy if $pl->ns;
		1692
		1693	my $path = playerdir $pl;
		1694	my $temp = "$path~$cf::RUNTIME~deleting~";
		1695	aio_rename $path, $temp;
		1696	delete $cf::PLAYER{$pl->ob->name};
		1697	$pl->destroy;
		1698
		1699	my $prefix = qr<^~\Q$name\E/>;
		1700
		1701	# nuke player maps
		1702	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1703
		1704	IO::AIO::aio_rmtree $temp;
		1705	}
		1706
		1707	=item $pl->kick
		1708
		1709	Kicks a player out of the game. This destroys the connection.
		1710
		1711	=cut
		1712
		1713	sub kick {
		1714	my ($pl, $kicker) = @_;
		1715
		1716	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1717	$pl->killer ("kicked");
		1718	$pl->ns->destroy;
		1719	}
		1720
		1721	=item cf::player::list_logins
		1722
		1723	Returns am arrayref of all valid playernames in the system, can take a
		1724	while and may block, so not sync_job-capable, ever.
		1725
		1726	=cut
		1727
		1728	sub list_logins {
		1729	my $dirs = aio_readdir $PLAYERDIR
		1730	or return [];
		1731
		1732	my @logins;
		1733
		1734	for my $login (@$dirs) {
		1735	my $path = path $login;
		1736
		1737	# a .pst is a dead give-away for a valid player
		1738	# if no pst file found, open and chekc for blocked users
		1739	if (aio_stat "$path.pst") {
		1740	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1741	aio_read $fh, 0, 512, my $buf, 0 or next;
		1742	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1743	}
		1744
		1745	utf8::decode $login;
		1746	push @logins, $login;
		1747	}
		1748
		1749	\@logins
		1750	}
		1751
		1752	=item $player->maps
		1753
		1754	=item cf::player::maps $login
		1755
		1756	Returns an arrayref of map paths that are private for this
		1757	player. May block.
		1758
		1759	=cut
		1760
		1761	sub maps($) {
		1762	my ($pl) = @_;
		1763
		1764	$pl = ref $pl ? $pl->ob->name : $pl;
		1765
		1766	my $files = aio_readdir playerdir $pl
		1767	or return;
		1768
		1769	my @paths;
		1770
		1771	for (@$files) {
		1772	utf8::decode $_;
		1773	next if /\.(?:pl|pst)$/;
		1774	next unless /^$PATH_SEP/o;
		1775
		1776	push @paths, cf::map::normalise "~$pl/$_";
		1777	}
		1778
		1779	\@paths
		1780	}
		1781
		1782	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1783
		1784	Expand deliantra pod fragments into protocol xml.
		1785
		1786	=item $player->ext_reply ($msgid, @msg)
		1787
		1788	Sends an ext reply to the player.
		1789
		1790	=cut
		1791
		1792	sub ext_reply($$@) {
		1793	my ($self, $id, @msg) = @_;
		1794
		1795	$self->ns->ext_reply ($id, @msg)
		1796	}
		1797
		1798	=item $player->ext_msg ($type, @msg)
		1799
		1800	Sends an ext event to the client.
		1801
		1802	=cut
		1803
		1804	sub ext_msg($$@) {
		1805	my ($self, $type, @msg) = @_;
		1806
		1807	$self->ns->ext_msg ($type, @msg);
		1808	}
		1809
		1810	=head3 cf::region
1084		1811
1085	=over 4	1812	=over 4
1086		1813
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut	1814	=cut
1092		1815
1093	sub cf::player::exists($) {	1816	package cf::region;
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097		1817
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)	1818	=item cf::region::find_by_path $path
1099		1819
1100	Sends an ext reply to the player.	1820	Tries to decuce the likely region for a map knowing only its path.
1101		1821
1102	=cut	1822	=cut
1103		1823
1104	sub cf::player::ext_reply($$$%) {	1824	sub find_by_path($) {
1105	my ($self, $id, %msg) = @_;	1825	my ($path) = @_;
1106		1826
1107	$msg{msgid} = $id;	1827	$path =~ s/^~[^\/]*//; # skip ~login
1108		1828
1109	$self->send ("ext " . to_json \%msg);	1829	my ($match, $specificity);
		1830
		1831	for my $region (list) {
		1832	if ($region->{match} && $path =~ $region->{match}) {
		1833	($match, $specificity) = ($region, $region->specificity)
		1834	if $region->specificity > $specificity;
		1835	}
		1836	}
		1837
		1838	$match
1110	}	1839	}
1111		1840
1112	=back	1841	=back
1113
1114		1842
1115	=head3 cf::map	1843	=head3 cf::map
1116		1844
1117	=over 4	1845	=over 4
1118		1846
…		…
1121	package cf::map;	1849	package cf::map;
1122		1850
1123	use Fcntl;	1851	use Fcntl;
1124	use Coro::AIO;	1852	use Coro::AIO;
1125		1853
		1854	use overload
		1855	'""' => \&as_string,
		1856	fallback => 1;
		1857
1126	our $MAX_RESET = 3600;	1858	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1859	our $DEFAULT_RESET = 3000;
1128		1860
1129	sub generate_random_map {	1861	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1862	my ($self, $rmp) = @_;
		1863
		1864	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1131		1865
1132	# mit "rum" bekleckern, nicht	1866	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1867	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1868	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1869	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1870	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1871	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1872	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1873	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1874	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1875	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1876	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1877	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1878	(cf::region::find $rmp->{region}), $rmp->{custom}
		1879	)
1146	}	1880	}
1147		1881
1148	# and all this just because we cannot iterate over	1882	=item cf::map->register ($regex, $prio)
1149	# all maps in C++...
1150	sub change_all_map_light {
1151	my ($change) = @_;
1152		1883
1153	$_->change_map_light ($change)	1884	Register a handler for the map path matching the given regex at the
1154	for grep $_->outdoor, values %cf::MAP;	1885	givne priority (higher is better, built-in handlers have priority 0, the
1155	}	1886	default).
1156		1887
1157	sub try_load_header($) {	1888	=cut
		1889
		1890	sub register {
		1891	my (undef, $regex, $prio) = @_;
		1892	my $pkg = caller;
		1893
		1894	push @{"$pkg\::ISA"}, __PACKAGE__;
		1895
		1896	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1897	}
		1898
		1899	# also paths starting with '/'
		1900	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1901
		1902	sub thawer_merge {
		1903	my ($self, $merge) = @_;
		1904
		1905	# we have to keep some variables in memory intact
		1906	local $self->{path};
		1907	local $self->{load_path};
		1908
		1909	$self->SUPER::thawer_merge ($merge);
		1910	}
		1911
		1912	sub normalise {
1158	my ($path) = @_;	1913	my ($path, $base) = @_;
		1914
		1915	$path = "$path"; # make sure it's a string
		1916
		1917	$path =~ s/\.map$//;
		1918
		1919	# map plan:
		1920	#
		1921	# /! non-realised random map exit (special hack!)
		1922	# {... are special paths that are not being touched
		1923	# ?xxx/... are special absolute paths
		1924	# ?random/... random maps
		1925	# /... normal maps
		1926	# ~user/... per-player map of a specific user
		1927
		1928	$path =~ s/$PATH_SEP/\//go;
		1929
		1930	# treat it as relative path if it starts with
		1931	# something that looks reasonable
		1932	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1933	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1934
		1935	$base =~ s{[^/]+/?$}{};
		1936	$path = "$base/$path";
		1937	}
		1938
		1939	for ($path) {
		1940	redo if s{/\.?/}{/};
		1941	redo if s{/[^/]+/\.\./}{/};
		1942	}
		1943
		1944	$path
		1945	}
		1946
		1947	sub new_from_path {
		1948	my (undef, $path, $base) = @_;
		1949
		1950	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1951
		1952	$path = normalise $path, $base;
		1953
		1954	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1955	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1956	my $self = bless cf::map::new, $pkg;
		1957	$self->{path} = $path; $self->path ($path);
		1958	$self->init; # pass $1 etc.
		1959	return $self;
		1960	}
		1961	}
		1962
		1963	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1964	()
		1965	}
		1966
		1967	sub init {
		1968	my ($self) = @_;
		1969
		1970	$self
		1971	}
		1972
		1973	sub as_string {
		1974	my ($self) = @_;
		1975
		1976	"$self->{path}"
		1977	}
		1978
		1979	# the displayed name, this is a one way mapping
		1980	sub visible_name {
		1981	&as_string
		1982	}
		1983
		1984	# the original (read-only) location
		1985	sub load_path {
		1986	my ($self) = @_;
		1987
		1988	"$MAPDIR/$self->{path}.map"
		1989	}
		1990
		1991	# the temporary/swap location
		1992	sub save_path {
		1993	my ($self) = @_;
		1994
		1995	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1996	"$TMPDIR/$path.map"
		1997	}
		1998
		1999	# the unique path, undef == no special unique path
		2000	sub uniq_path {
		2001	my ($self) = @_;
		2002
		2003	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2004	"$UNIQUEDIR/$path"
		2005	}
		2006
		2007	sub decay_objects {
		2008	my ($self) = @_;
		2009
		2010	return if $self->{deny_reset};
		2011
		2012	$self->do_decay_objects;
		2013	}
		2014
		2015	sub unlink_save {
		2016	my ($self) = @_;
		2017
		2018	utf8::encode (my $save = $self->save_path);
		2019	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2020	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2021	}
		2022
		2023	sub load_header_from($) {
		2024	my ($self, $path) = @_;
1159		2025
1160	utf8::encode $path;	2026	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	2027	my $f = new_from_file cf::object::thawer $path
1162	or return;	2028	or return;
1163		2029
1164	my $map = cf::map::new	2030	$self->_load_header ($f)
1165	or return;	2031	or return;
1166		2032
1167	# for better error messages only, will be overwritten	2033	local $MAP_LOADING{$self->{path}} = $self;
1168	$map->path ($path);	2034	$f->resolve_delayed_derefs;
1169		2035
1170	$map->load_header ($path)	2036	$self->{load_path} = $path;
		2037
		2038	1
		2039	}
		2040
		2041	sub load_header_orig {
		2042	my ($self) = @_;
		2043
		2044	$self->load_header_from ($self->load_path)
		2045	}
		2046
		2047	sub load_header_temp {
		2048	my ($self) = @_;
		2049
		2050	$self->load_header_from ($self->save_path)
		2051	}
		2052
		2053	sub prepare_temp {
		2054	my ($self) = @_;
		2055
		2056	$self->last_access ((delete $self->{last_access})
		2057	|| $cf::RUNTIME); #d#
		2058	# safety
		2059	$self->{instantiate_time} = $cf::RUNTIME
		2060	if $self->{instantiate_time} > $cf::RUNTIME;
		2061	}
		2062
		2063	sub prepare_orig {
		2064	my ($self) = @_;
		2065
		2066	$self->{load_original} = 1;
		2067	$self->{instantiate_time} = $cf::RUNTIME;
		2068	$self->last_access ($cf::RUNTIME);
		2069	$self->instantiate;
		2070	}
		2071
		2072	sub load_header {
		2073	my ($self) = @_;
		2074
		2075	if ($self->load_header_temp) {
		2076	$self->prepare_temp;
		2077	} else {
		2078	$self->load_header_orig
1171	or return;	2079	or return;
		2080	$self->prepare_orig;
		2081	}
1172		2082
1173	$map->{load_path} = $path;	2083	$self->{deny_reset} = 1
		2084	if $self->no_reset;
1174		2085
1175	$map	2086	$self->default_region (cf::region::find_by_path $self->{path})
		2087	unless $self->default_region;
		2088
		2089	1
1176	}	2090	}
1177		2091
1178	sub find;	2092	sub find;
1179	sub find {	2093	sub find {
1180	my ($path, $origin) = @_;	2094	my ($path, $origin) = @_;
1181		2095
1182	#warn "find<$path,$origin>\n";#d#	2096	cf::cede_to_tick;
1183		2097
1184	$path = new cf::path $path, $origin && $origin->path;	2098	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		2099
1187	cf::lock_wait "map_find:$key";	2100	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";	2101	my $guard2 = cf::lock_acquire "map_find:$path";
1191		2102
1192	# do it the slow way	2103	$cf::MAP{$path} || do {
1193	my $map = try_load_header $path->save_path;	2104	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;	2105	or return;
1211		2106
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;	2107	$map->{last_save} = $cf::RUNTIME;
1224		2108
1225	Coro::cede;	2109	$map->load_header
		2110	or return;
1226		2111
1227	if ($map->should_reset) {	2112	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2113	# doing this can freeze the server in a sync job, obviously
		2114	#$cf::WAIT_FOR_TICK->wait;
		2115	undef $guard2;
		2116	undef $guard1;
1228	$map->reset;	2117	$map->reset;
1229	undef $guard;
1230	$map = find $path	2118	return find $path;
1231	or return;
1232	}	2119	}
1233		2120
1234	$cf::MAP{$key} = $map	2121	$cf::MAP{$path} = $map
1235	}	2122	}
1236	}	2123	}
		2124
		2125	sub pre_load { }
		2126	#sub post_load { } # XS
1237		2127
1238	sub load {	2128	sub load {
1239	my ($self) = @_;	2129	my ($self) = @_;
1240		2130
		2131	local $self->{deny_reset} = 1; # loading can take a long time
		2132
1241	my $path = $self->{path};	2133	my $path = $self->{path};
		2134
		2135	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2136	my $guard = cf::lock_acquire "map_data:$path";
1243		2137
		2138	return unless $self->valid;
1244	return if $self->in_memory != cf::MAP_SWAPPED;	2139	return unless $self->in_memory == cf::MAP_SWAPPED;
1245		2140
1246	$self->in_memory (cf::MAP_LOADING);	2141	$self->in_memory (cf::MAP_LOADING);
1247		2142
1248	$self->alloc;	2143	$self->alloc;
1249	$self->load_objects ($self->{load_path}, 1)	2144
		2145	$self->pre_load;
		2146	cf::cede_to_tick;
		2147
		2148	my $f = new_from_file cf::object::thawer $self->{load_path};
		2149	$f->skip_block;
		2150	$self->_load_objects ($f)
1250	or return;	2151	or return;
1251		2152
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2153	$self->post_load_original
1253	if delete $self->{load_original};	2154	if delete $self->{load_original};
1254		2155
1255	if (my $uniq = $path->uniq_path) {	2156	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	2157	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	2158	unless (aio_stat $uniq) {
		2159	if (my $f = new_from_file cf::object::thawer $uniq) {
1258	$self->clear_unique_items;	2160	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	2161	$self->_load_objects ($f);
		2162	$f->resolve_delayed_derefs;
		2163	}
1260	}	2164	}
1261	}	2165	}
1262		2166
1263	Coro::cede;	2167	$f->resolve_delayed_derefs;
1264		2168
		2169	cf::cede_to_tick;
1265	# now do the right thing for maps	2170	# now do the right thing for maps
1266	$self->link_multipart_objects;	2171	$self->link_multipart_objects;
1267
1268	if ($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)	2172	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	2173	unless $self->difficulty;
		2174	cf::cede_to_tick;
		2175
		2176	unless ($self->{deny_activate}) {
		2177	$self->decay_objects;
		2178	$self->fix_auto_apply;
		2179	$self->update_buttons;
		2180	cf::cede_to_tick;
1278	$self->activate;	2181	$self->activate;
1279	}	2182	}
1280		2183
1281	Coro::cede;	2184	$self->{last_save} = $cf::RUNTIME;
		2185	$self->last_access ($cf::RUNTIME);
1282		2186
1283	$self->in_memory (cf::MAP_IN_MEMORY);	2187	$self->in_memory (cf::MAP_ACTIVE);
		2188	}
		2189
		2190	$self->post_load;
		2191
		2192	1
		2193	}
		2194
		2195	# customize the map for a given player, i.e.
		2196	# return the _real_ map. used by e.g. per-player
		2197	# maps to change the path to ~playername/mappath
		2198	sub customise_for {
		2199	my ($self, $ob) = @_;
		2200
		2201	return find "~" . $ob->name . "/" . $self->{path}
		2202	if $self->per_player;
		2203
		2204	# return find "?party/" . $ob->name . "/" . $self->{path}
		2205	# if $self->per_party;
		2206
		2207	$self
		2208	}
		2209
		2210	# find and load all maps in the 3x3 area around a map
		2211	sub load_neighbours {
		2212	my ($map) = @_;
		2213
		2214	my @neigh; # diagonal neighbours
		2215
		2216	for (0 .. 3) {
		2217	my $neigh = $map->tile_path ($_)
		2218	or next;
		2219	$neigh = find $neigh, $map
		2220	or next;
		2221	$neigh->load;
		2222
		2223	# now find the diagonal neighbours
		2224	push @neigh,
		2225	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2226	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2227	}
		2228
		2229	for (grep defined $_->[0], @neigh) {
		2230	my ($path, $origin) = @$_;
		2231	my $neigh = find $path, $origin
		2232	or next;
		2233	$neigh->load;
		2234	}
1284	}	2235	}
1285		2236
1286	sub find_sync {	2237	sub find_sync {
1287	my ($path, $origin) = @_;	2238	my ($path, $origin) = @_;
1288		2239
1289	cf::sync_job { cf::map::find $path, $origin }	2240	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2241	if $Coro::current == $Coro::main;
		2242
		2243	find $path, $origin
1290	}	2244	}
1291		2245
1292	sub do_load_sync {	2246	sub do_load_sync {
1293	my ($map) = @_;	2247	my ($map) = @_;
1294		2248
1295	cf::sync_job { $map->load };	2249	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2250	if $Coro::current == $Coro::main;
		2251
		2252	$map->load;
		2253	}
		2254
		2255	our %MAP_PREFETCH;
		2256	our $MAP_PREFETCHER = undef;
		2257
		2258	sub find_async {
		2259	my ($path, $origin, $load) = @_;
		2260
		2261	$path = normalise $path, $origin && $origin->{path};
		2262
		2263	if (my $map = $cf::MAP{$path}) {
		2264	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2265	}
		2266
		2267	$MAP_PREFETCH{$path} |= $load;
		2268
		2269	$MAP_PREFETCHER ||= cf::async {
		2270	$Coro::current->{desc} = "map prefetcher";
		2271
		2272	while (%MAP_PREFETCH) {
		2273	while (my ($k, $v) = each %MAP_PREFETCH) {
		2274	if (my $map = find $k) {
		2275	$map->load if $v;
		2276	}
		2277
		2278	delete $MAP_PREFETCH{$k};
		2279	}
		2280	}
		2281	undef $MAP_PREFETCHER;
		2282	};
		2283	$MAP_PREFETCHER->prio (6);
		2284
		2285	()
		2286	}
		2287
		2288	# common code, used by both ->save and ->swapout
		2289	sub _save {
		2290	my ($self) = @_;
		2291
		2292	$self->{last_save} = $cf::RUNTIME;
		2293
		2294	return unless $self->dirty;
		2295
		2296	my $save = $self->save_path; utf8::encode $save;
		2297	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2298
		2299	$self->{load_path} = $save;
		2300
		2301	return if $self->{deny_save};
		2302
		2303	local $self->{last_access} = $self->last_access;#d#
		2304
		2305	cf::async {
		2306	$Coro::current->{desc} = "map player save";
		2307	$_->contr->save for $self->players;
		2308	};
		2309
		2310	cf::get_slot 0.02;
		2311
		2312	if ($uniq) {
		2313	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2314	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2315	} else {
		2316	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2317	}
1296	}	2318	}
1297		2319
1298	sub save {	2320	sub save {
1299	my ($self) = @_;	2321	my ($self) = @_;
1300		2322
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	2323	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2324
1303	$self->{last_save} = $cf::RUNTIME;	2325	$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	}	2326	}
1323		2327
1324	sub swap_out {	2328	sub swap_out {
1325	my ($self) = @_;	2329	my ($self) = @_;
1326		2330
1327	# save first because save cedes
1328	$self->save;
1329
1330	my $lock = cf::lock_acquire "map_data:" . $self->path;	2331	my $lock = cf::lock_acquire "map_data:$self->{path}";
1331		2332
		2333	return if $self->in_memory != cf::MAP_ACTIVE;
		2334	return if $self->{deny_save};
1332	return if $self->players;	2335	return if $self->players;
1333	return if $self->in_memory != cf::MAP_IN_MEMORY;
1334	return if $self->{deny_save};
1335		2336
		2337	# first deactivate the map and "unlink" it from the core
		2338	$self->deactivate;
		2339	$_->clear_links_to ($self) for values %cf::MAP;
		2340	$self->in_memory (cf::MAP_SWAPPED);
		2341
		2342	# then atomically save
		2343	$self->_save;
		2344
		2345	# then free the map
1336	$self->clear;	2346	$self->clear;
1337	$self->in_memory (cf::MAP_SWAPPED);
1338	}	2347	}
1339		2348
1340	sub reset_at {	2349	sub reset_at {
1341	my ($self) = @_;	2350	my ($self) = @_;
1342		2351
1343	# TODO: safety, remove and allow resettable per-player maps	2352	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};
1345	return 1e99 if $self->{deny_reset};	2353	return 1e99 if $self->{deny_reset};
1346		2354
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2355	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2356	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		2357
…		…
1354	my ($self) = @_;	2362	my ($self) = @_;
1355		2363
1356	$self->reset_at <= $cf::RUNTIME	2364	$self->reset_at <= $cf::RUNTIME
1357	}	2365	}
1358		2366
1359	sub unlink_save {
1360	my ($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	$self->save;
1378	}
1379
1380	sub reset {	2367	sub reset {
1381	my ($self) = @_;	2368	my ($self) = @_;
1382		2369
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	2370	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		2371
1385	return if $self->players;	2372	return if $self->players;
1386	return if $self->{path}{user_rel};#d#
1387		2373
1388	warn "resetting map ", $self->path;#d#	2374	cf::trace "resetting map ", $self->path, "\n";
		2375
		2376	$self->in_memory (cf::MAP_SWAPPED);
		2377
		2378	# need to save uniques path
		2379	unless ($self->{deny_save}) {
		2380	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2381
		2382	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2383	if $uniq;
		2384	}
1389		2385
1390	delete $cf::MAP{$self->path};	2386	delete $cf::MAP{$self->path};
1391		2387
		2388	$self->deactivate;
1392	$_->clear_links_to ($self) for values %cf::MAP;	2389	$_->clear_links_to ($self) for values %cf::MAP;
		2390	$self->clear;
1393		2391
1394	$self->unlink_save;	2392	$self->unlink_save;
1395	$self->destroy;	2393	$self->destroy;
1396	}	2394	}
1397		2395
1398	my $nuke_counter = "aaaa";	2396	my $nuke_counter = "aaaa";
1399		2397
1400	sub nuke {	2398	sub nuke {
1401	my ($self) = @_;	2399	my ($self) = @_;
1402		2400
		2401	{
		2402	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2403
		2404	delete $cf::MAP{$self->path};
		2405
		2406	$self->unlink_save;
		2407
		2408	bless $self, "cf::map::wrap";
		2409	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	2410	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	2411	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	2412	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2413
		2414	$cf::MAP{$self->path} = $self;
		2415	}
		2416
1406	$self->reset; # polite request, might not happen	2417	$self->reset; # polite request, might not happen
1407	}	2418	}
1408		2419
1409	sub customise_for {	2420	=item $maps = cf::map::tmp_maps
1410	my ($map, $ob) = @_;
1411		2421
1412	if ($map->per_player) {	2422	Returns an arrayref with all map paths of currently instantiated and saved
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2423	maps. May block.
		2424
		2425	=cut
		2426
		2427	sub tmp_maps() {
1414	}	2428	[
1415		2429	map {
1416	$map	2430	utf8::decode $_;
		2431	/\.map$/
		2432	? normalise $_
		2433	: ()
		2434	} @{ aio_readdir $TMPDIR or [] }
		2435	]
1417	}	2436	}
1418		2437
1419	sub emergency_save {	2438	=item $maps = cf::map::random_maps
1420	my $freeze_guard = cf::freeze_mainloop;
1421		2439
1422	warn "enter emergency map save\n";	2440	Returns an arrayref with all map paths of currently instantiated and saved
		2441	random maps. May block.
1423		2442
1424	cf::sync_job {	2443	=cut
1425	warn "begin emergency map save\n";	2444
1426	$_->save for values %cf::MAP;	2445	sub random_maps() {
		2446	[
		2447	map {
		2448	utf8::decode $_;
		2449	/\.map$/
		2450	? normalise "?random/$_"
		2451	: ()
		2452	} @{ aio_readdir $RANDOMDIR or [] }
		2453	]
		2454	}
		2455
		2456	=item cf::map::unique_maps
		2457
		2458	Returns an arrayref of paths of all shared maps that have
		2459	instantiated unique items. May block.
		2460
		2461	=cut
		2462
		2463	sub unique_maps() {
		2464	[
		2465	map {
		2466	utf8::decode $_;
		2467	s/\.map$//; # TODO future compatibility hack
		2468	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2469	? ()
		2470	: normalise $_
		2471	} @{ aio_readdir $UNIQUEDIR or [] }
		2472	]
		2473	}
		2474
		2475	=item cf::map::static_maps
		2476
		2477	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2478	file in the shared directory excluding F</styles> and F</editor>). May
		2479	block.
		2480
		2481	=cut
		2482
		2483	sub static_maps() {
		2484	my @dirs = "";
		2485	my @maps;
		2486
		2487	while (@dirs) {
		2488	my $dir = shift @dirs;
		2489
		2490	next if $dir eq "/styles" || $dir eq "/editor";
		2491
		2492	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2493	or return;
		2494
		2495	for (@$files) {
		2496	s/\.map$// or next;
		2497	utf8::decode $_;
		2498	push @maps, "$dir/$_";
		2499	}
		2500
		2501	push @dirs, map "$dir/$_", @$dirs;
1427	};	2502	}
1428		2503
1429	warn "end emergency map save\n";	2504	\@maps
		2505	}
		2506
		2507	=back
		2508
		2509	=head3 cf::object
		2510
		2511	=cut
		2512
		2513	package cf::object;
		2514
		2515	=over 4
		2516
		2517	=item $ob->inv_recursive
		2518
		2519	Returns the inventory of the object I<and> their inventories, recursively,
		2520	but I<not> the object itself.
		2521
		2522	=cut
		2523
		2524	sub inv_recursive_;
		2525	sub inv_recursive_ {
		2526	map { $_, inv_recursive_ $_->inv } @_
		2527	}
		2528
		2529	sub inv_recursive {
		2530	inv_recursive_ inv $_[0]
		2531	}
		2532
		2533	=item $ref = $ob->ref
		2534
		2535	Creates and returns a persistent reference to an object that can be stored as a string.
		2536
		2537	=item $ob = cf::object::deref ($refstring)
		2538
		2539	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2540	even if the object actually exists. May block.
		2541
		2542	=cut
		2543
		2544	sub deref {
		2545	my ($ref) = @_;
		2546
		2547	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2548	my ($uuid, $name) = ($1, $2);
		2549	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2550	or return;
		2551	$pl->ob->uuid eq $uuid
		2552	or return;
		2553
		2554	$pl->ob
		2555	} else {
		2556	warn "$ref: cannot resolve object reference\n";
		2557	undef
		2558	}
1430	}	2559	}
1431		2560
1432	package cf;	2561	package cf;
1433		2562
1434	=back	2563	=back
1435
1436		2564
1437	=head3 cf::object::player	2565	=head3 cf::object::player
1438		2566
1439	=over 4	2567	=over 4
1440		2568
…		…
1443	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2571	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	2572	can be C<undef>. Does the right thing when the player is currently in a
1445	dialogue with the given NPC character.	2573	dialogue with the given NPC character.
1446		2574
1447	=cut	2575	=cut
		2576
		2577	our $SAY_CHANNEL = {
		2578	id => "say",
		2579	title => "Map",
		2580	reply => "say ",
		2581	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2582	};
		2583
		2584	our $CHAT_CHANNEL = {
		2585	id => "chat",
		2586	title => "Chat",
		2587	reply => "chat ",
		2588	tooltip => "Player chat and shouts, global to the server.",
		2589	};
1448		2590
1449	# rough implementation of a future "reply" method that works	2591	# rough implementation of a future "reply" method that works
1450	# with dialog boxes.	2592	# with dialog boxes.
1451	#TODO: the first argument must go, split into a $npc->reply_to ( method	2593	#TODO: the first argument must go, split into a $npc->reply_to ( method
1452	sub cf::object::player::reply($$$;$) {	2594	sub cf::object::player::reply($$$;$) {
…		…
1454		2596
1455	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2597	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1456		2598
1457	if ($self->{record_replies}) {	2599	if ($self->{record_replies}) {
1458	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2600	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2601
1459	} else {	2602	} else {
		2603	my $pl = $self->contr;
		2604
		2605	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2606	my $dialog = $pl->{npc_dialog};
		2607	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2608
		2609	} else {
1460	$msg = $npc->name . " says: $msg" if $npc;	2610	$msg = $npc->name . " says: $msg" if $npc;
1461	$self->message ($msg, $flags);	2611	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2612	}
1462	}	2613	}
		2614	}
		2615
		2616	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2617
		2618	=cut
		2619
		2620	sub cf::object::send_msg {
		2621	my $pl = shift->contr
		2622	or return;
		2623	$pl->send_msg (@_);
1463	}	2624	}
1464		2625
1465	=item $player_object->may ("access")	2626	=item $player_object->may ("access")
1466		2627
1467	Returns wether the given player is authorized to access resource "access"	2628	Returns wether the given player is authorized to access resource "access"
…		…
1480		2641
1481	=item $player_object->enter_link	2642	=item $player_object->enter_link
1482		2643
1483	Freezes the player and moves him/her to a special map (C<{link}>).	2644	Freezes the player and moves him/her to a special map (C<{link}>).
1484		2645
1485	The player should be reaosnably safe there for short amounts of time. You	2646	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.	2647	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2648	though, as the player cannot control the character while it is on the link
		2649	map.
		2650
		2651	Will never block.
1487		2652
1488	=item $player_object->leave_link ($map, $x, $y)	2653	=item $player_object->leave_link ($map, $x, $y)
1489		2654
1490	Moves the player out of the specila link map onto the given map. If the	2655	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	2656	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	2657	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	2658	fails, to the emergency map position.
1494		2659
1495	Might block.	2660	Might block.
1496		2661
1497	=cut	2662	=cut
		2663
		2664	sub link_map {
		2665	unless ($LINK_MAP) {
		2666	$LINK_MAP = cf::map::find "{link}"
		2667	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2668	$LINK_MAP->load;
		2669	}
		2670
		2671	$LINK_MAP
		2672	}
1498		2673
1499	sub cf::object::player::enter_link {	2674	sub cf::object::player::enter_link {
1500	my ($self) = @_;	2675	my ($self) = @_;
1501		2676
1502	$self->deactivate_recursive;	2677	$self->deactivate_recursive;
1503		2678
1504	return if $self->map == $LINK_MAP;	2679	++$self->{_link_recursion};
		2680
		2681	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		2682
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2683	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	2684	if $self->map && $self->map->{path} ne "{link}";
1508		2685
1509	$self->enter_map ($LINK_MAP, 20, 20);	2686	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1510	}	2687	}
1511		2688
1512	sub cf::object::player::leave_link {	2689	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	2690	my ($self, $map, $x, $y) = @_;
		2691
		2692	return unless $self->contr->active;
1514		2693
1515	my $link_pos = delete $self->{_link_pos};	2694	my $link_pos = delete $self->{_link_pos};
1516		2695
1517	unless ($map) {	2696	unless ($map) {
1518	# restore original map position	2697	# restore original map position
…		…
1529	($x, $y) = (-1, -1)	2708	($x, $y) = (-1, -1)
1530	unless (defined $x) && (defined $y);	2709	unless (defined $x) && (defined $y);
1531		2710
1532	# use -1 or undef as default coordinates, not 0, 0	2711	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	2712	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	2713	if $x <= 0 && $y <= 0;
1535		2714
1536	$map->load;	2715	$map->load;
		2716	$map->load_neighbours;
1537		2717
		2718	return unless $self->contr->active;
		2719
		2720	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2721	if ($self->enter_map ($map, $x, $y)) {
		2722	# entering was successful
		2723	delete $self->{_link_recursion};
		2724	# only activate afterwards, to support waiting in hooks
1538	$self->activate_recursive;	2725	$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	$pl->ob->leave_link
1550	};
1551	}
1552	},	2726	}
1553	on_login => sub {
1554	my ($pl) = @_;
1555		2727
1556	# try to abort aborted map switching on player login :)	2728	}
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		2729
1570	=item $player_object->goto ($path, $x, $y)	2730	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1571		2731
		2732	Moves the player to the given map-path and coordinates by first freezing
		2733	her, loading and preparing them map, calling the provided $check callback
		2734	that has to return the map if sucecssful, and then unfreezes the player on
		2735	the new (success) or old (failed) map position. In either case, $done will
		2736	be called at the end of this process.
		2737
		2738	Note that $check will be called with a potentially non-loaded map, so if
		2739	it needs a loaded map it has to call C<< ->load >>.
		2740
1572	=cut	2741	=cut
		2742
		2743	our $GOTOGEN;
1573		2744
1574	sub cf::object::player::goto {	2745	sub cf::object::player::goto {
1575	my ($self, $path, $x, $y) = @_;	2746	my ($self, $path, $x, $y, $check, $done) = @_;
		2747
		2748	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2749	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2750	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2751	($path, $x, $y) = @$EMERGENCY_POSITION;
		2752	}
		2753
		2754	# do generation counting so two concurrent goto's will be executed in-order
		2755	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1576		2756
1577	$self->enter_link;	2757	$self->enter_link;
1578		2758
1579	(cf::async {	2759	(async {
1580	$path = new cf::path $path;	2760	$Coro::current->{desc} = "player::goto $path $x $y";
1581		2761
1582	my $map = cf::map::find $path->as_string;	2762	# *tag paths override both path and x|y
		2763	if ($path =~ /^\*(.*)$/) {
		2764	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2765	my $ob = $obs[rand @obs];
		2766
		2767	# see if we actually can go there
		2768	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2769	$ob = $obs[rand @obs];
		2770	} else {
		2771	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2772	}
		2773	# else put us there anyways for now #d#
		2774
		2775	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2776	} else {
		2777	($path, $x, $y) = (undef, undef, undef);
		2778	}
		2779	}
		2780
		2781	my $map = eval {
		2782	my $map = defined $path ? cf::map::find $path : undef;
		2783
		2784	if ($map) {
1583	$map = $map->customise_for ($self) if $map;	2785	$map = $map->customise_for ($self);
1584		2786	$map = $check->($map, $x, $y, $self) if $check && $map;
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	2787	} else {
1586	# if $map;
1587
1588	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2788	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2789	}
1589		2790
		2791	$map
		2792	};
		2793
		2794	if ($@) {
		2795	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2796	LOG llevError | logBacktrace, Carp::longmess $@;
		2797	}
		2798
		2799	if ($gen == $self->{_goto_generation}) {
		2800	delete $self->{_goto_generation};
1590	$self->leave_link ($map, $x, $y);	2801	$self->leave_link ($map, $x, $y);
		2802	}
		2803
		2804	$done->($self) if $done;
1591	})->prio (1);	2805	})->prio (1);
1592	}	2806	}
1593		2807
1594	=item $player_object->enter_exit ($exit_object)	2808	=item $player_object->enter_exit ($exit_object)
1595		2809
…		…
1597		2811
1598	sub parse_random_map_params {	2812	sub parse_random_map_params {
1599	my ($spec) = @_;	2813	my ($spec) = @_;
1600		2814
1601	my $rmp = { # defaults	2815	my $rmp = { # defaults
1602	xsize => 10,	2816	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	2817	ysize => (cf::rndm 15, 40),
		2818	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2819	#layout => string,
1604	};	2820	};
1605		2821
1606	for (split /\n/, $spec) {	2822	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	2823	my ($k, $v) = split /\s+/, $_, 2;
1608		2824
…		…
1620	# that depends on the exit object	2836	# that depends on the exit object
1621		2837
1622	my $rmp = parse_random_map_params $exit->msg;	2838	my $rmp = parse_random_map_params $exit->msg;
1623		2839
1624	if ($exit->map) {	2840	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	2841	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	2842	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	2843	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	2844	$rmp->{origin_y} = $exit->y;
		2845
		2846	$exit->map->touch;
1629	}	2847	}
1630		2848
1631	$rmp->{random_seed} ||= $exit->random_seed;	2849	$rmp->{random_seed} ||= $exit->random_seed;
1632		2850
1633	my $data = cf::to_json $rmp;	2851	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1634	my $md5 = Digest::MD5::md5_hex $data;	2852	my $md5 = Digest::MD5::md5_hex $data;
		2853	my $meta = "$RANDOMDIR/$md5.meta";
1635		2854
1636	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2855	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1637	aio_write $fh, 0, (length $data), $data, 0;	2856	aio_write $fh, 0, (length $data), $data, 0;
		2857	undef $fh;
		2858	aio_rename "$meta~", $meta;
1638		2859
		2860	my $slaying = "?random/$md5";
		2861
		2862	if ($exit->valid) {
1639	$exit->slaying ("?random/$md5");	2863	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	2864	$exit->msg (undef);
		2865	}
1641	}	2866	}
1642	}	2867	}
1643		2868
1644	sub cf::object::player::enter_exit {	2869	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	2870	my ($self, $exit) = @_;
1646		2871
1647	return unless $self->type == cf::PLAYER;	2872	return unless $self->type == cf::PLAYER;
1648		2873
1649	$self->enter_link;	2874	$self->enter_link;
1650		2875
1651	(cf::async {	2876	(async {
1652	$self->deactivate_recursive; # just to be sure	2877	$Coro::current->{desc} = "enter_exit";
		2878
1653	unless (eval {	2879	unless (eval {
		2880	$self->deactivate_recursive; # just to be sure
		2881
		2882	# random map handling
		2883	{
		2884	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2885
1654	prepare_random_map $exit	2886	prepare_random_map $exit
1655	if $exit->slaying eq "/!";	2887	if $exit->slaying eq "/!";
		2888	}
1656		2889
1657	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2890	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2891	my $x = $exit->stats->hp;
		2892	my $y = $exit->stats->sp;
1659		2893
		2894	$self->goto ($map, $x, $y);
		2895
		2896	# if exit is damned, update players death & WoR home-position
		2897	$self->contr->savebed ($map, $x, $y)
		2898	if $exit->flag (cf::FLAG_DAMNED);
		2899
1660	1;	2900	1
1661	}) {	2901	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	2902	$self->message ("Something went wrong deep within the deliantra server. "
1663	. "I'll try to bring you back to the map you were before. "	2903	. "I'll try to bring you back to the map you were before. "
1664	. "Please report this to the dungeon master",	2904	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	2905	cf::NDI_UNIQUE | cf::NDI_RED);
1666		2906
1667	warn "ERROR in enter_exit: $@";	2907	error "ERROR in enter_exit: $@";
1668	$self->leave_link;	2908	$self->leave_link;
1669	}	2909	}
1670	})->prio (1);	2910	})->prio (1);
1671	}	2911	}
1672		2912
…		…
1683		2923
1684	sub cf::client::send_drawinfo {	2924	sub cf::client::send_drawinfo {
1685	my ($self, $text, $flags) = @_;	2925	my ($self, $text, $flags) = @_;
1686		2926
1687	utf8::encode $text;	2927	utf8::encode $text;
1688	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2928	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1689	}	2929	}
1690		2930
		2931	=item $client->send_big_packet ($pkt)
		2932
		2933	Like C<send_packet>, but tries to compress large packets, and fragments
		2934	them as required.
		2935
		2936	=cut
		2937
		2938	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2939
		2940	sub cf::client::send_big_packet {
		2941	my ($self, $pkt) = @_;
		2942
		2943	# try lzf for large packets
		2944	$pkt = "lzf " . Compress::LZF::compress $pkt
		2945	if 1024 <= length $pkt and $self->{can_lzf};
		2946
		2947	# split very large packets
		2948	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2949	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2950	$pkt = "frag";
		2951	}
		2952
		2953	$self->send_packet ($pkt);
		2954	}
		2955
		2956	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2957
		2958	Send a drawinfo or msg packet to the client, formatting the msg for the
		2959	client if neccessary. C<$type> should be a string identifying the type of
		2960	the message, with C<log> being the default. If C<$color> is negative, suppress
		2961	the message unless the client supports the msg packet.
		2962
		2963	=cut
		2964
		2965	# non-persistent channels (usually the info channel)
		2966	our %CHANNEL = (
		2967	"c/motd" => {
		2968	id => "infobox",
		2969	title => "MOTD",
		2970	reply => undef,
		2971	tooltip => "The message of the day",
		2972	},
		2973	"c/identify" => {
		2974	id => "infobox",
		2975	title => "Identify",
		2976	reply => undef,
		2977	tooltip => "Items recently identified",
		2978	},
		2979	"c/examine" => {
		2980	id => "infobox",
		2981	title => "Examine",
		2982	reply => undef,
		2983	tooltip => "Signs and other items you examined",
		2984	},
		2985	"c/shopinfo" => {
		2986	id => "infobox",
		2987	title => "Shop Info",
		2988	reply => undef,
		2989	tooltip => "What your bargaining skill tells you about the shop",
		2990	},
		2991	"c/book" => {
		2992	id => "infobox",
		2993	title => "Book",
		2994	reply => undef,
		2995	tooltip => "The contents of a note or book",
		2996	},
		2997	"c/lookat" => {
		2998	id => "infobox",
		2999	title => "Look",
		3000	reply => undef,
		3001	tooltip => "What you saw there",
		3002	},
		3003	"c/who" => {
		3004	id => "infobox",
		3005	title => "Players",
		3006	reply => undef,
		3007	tooltip => "Shows players who are currently online",
		3008	},
		3009	"c/body" => {
		3010	id => "infobox",
		3011	title => "Body Parts",
		3012	reply => undef,
		3013	tooltip => "Shows which body parts you posess and are available",
		3014	},
		3015	"c/statistics" => {
		3016	id => "infobox",
		3017	title => "Statistics",
		3018	reply => undef,
		3019	tooltip => "Shows your primary statistics",
		3020	},
		3021	"c/skills" => {
		3022	id => "infobox",
		3023	title => "Skills",
		3024	reply => undef,
		3025	tooltip => "Shows your experience per skill and item power",
		3026	},
		3027	"c/shopitems" => {
		3028	id => "infobox",
		3029	title => "Shop Items",
		3030	reply => undef,
		3031	tooltip => "Shows the items currently for sale in this shop",
		3032	},
		3033	"c/resistances" => {
		3034	id => "infobox",
		3035	title => "Resistances",
		3036	reply => undef,
		3037	tooltip => "Shows your resistances",
		3038	},
		3039	"c/pets" => {
		3040	id => "infobox",
		3041	title => "Pets",
		3042	reply => undef,
		3043	tooltip => "Shows information abotu your pets/a specific pet",
		3044	},
		3045	"c/perceiveself" => {
		3046	id => "infobox",
		3047	title => "Perceive Self",
		3048	reply => undef,
		3049	tooltip => "You gained detailed knowledge about yourself",
		3050	},
		3051	"c/uptime" => {
		3052	id => "infobox",
		3053	title => "Uptime",
		3054	reply => undef,
		3055	tooltip => "How long the server has been running since last restart",
		3056	},
		3057	"c/mapinfo" => {
		3058	id => "infobox",
		3059	title => "Map Info",
		3060	reply => undef,
		3061	tooltip => "Information related to the maps",
		3062	},
		3063	"c/party" => {
		3064	id => "party",
		3065	title => "Party",
		3066	reply => "gsay ",
		3067	tooltip => "Messages and chat related to your party",
		3068	},
		3069	"c/death" => {
		3070	id => "death",
		3071	title => "Death",
		3072	reply => undef,
		3073	tooltip => "Reason for and more info about your most recent death",
		3074	},
		3075	"c/say" => $SAY_CHANNEL,
		3076	"c/chat" => $CHAT_CHANNEL,
		3077	);
		3078
		3079	sub cf::client::send_msg {
		3080	my ($self, $channel, $msg, $color, @extra) = @_;
		3081
		3082	$msg = $self->pl->expand_cfpod ($msg)
		3083	unless $color & cf::NDI_VERBATIM;
		3084
		3085	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3086
		3087	# check predefined channels, for the benefit of C
		3088	if ($CHANNEL{$channel}) {
		3089	$channel = $CHANNEL{$channel};
		3090
		3091	$self->ext_msg (channel_info => $channel);
		3092	$channel = $channel->{id};
		3093
		3094	} elsif (ref $channel) {
		3095	# send meta info to client, if not yet sent
		3096	unless (exists $self->{channel}{$channel->{id}}) {
		3097	$self->{channel}{$channel->{id}} = $channel;
		3098	$self->ext_msg (channel_info => $channel);
		3099	}
		3100
		3101	$channel = $channel->{id};
		3102	}
		3103
		3104	return unless @extra || length $msg;
		3105
		3106	# default colour, mask it out
		3107	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3108	if $color & cf::NDI_DEF;
		3109
		3110	my $pkt = "msg "
		3111	. $self->{json_coder}->encode (
		3112	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3113	);
		3114
		3115	$self->send_big_packet ($pkt);
		3116	}
		3117
		3118	=item $client->ext_msg ($type, @msg)
		3119
		3120	Sends an ext event to the client.
		3121
		3122	=cut
		3123
		3124	sub cf::client::ext_msg($$@) {
		3125	my ($self, $type, @msg) = @_;
		3126
		3127	if ($self->extcmd == 2) {
		3128	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3129	} elsif ($self->extcmd == 1) { # TODO: remove
		3130	push @msg, msgtype => "event_$type";
		3131	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3132	}
		3133	}
		3134
		3135	=item $client->ext_reply ($msgid, @msg)
		3136
		3137	Sends an ext reply to the client.
		3138
		3139	=cut
		3140
		3141	sub cf::client::ext_reply($$@) {
		3142	my ($self, $id, @msg) = @_;
		3143
		3144	if ($self->extcmd == 2) {
		3145	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3146	} elsif ($self->extcmd == 1) {
		3147	#TODO: version 1, remove
		3148	unshift @msg, msgtype => "reply", msgid => $id;
		3149	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3150	}
		3151	}
1691		3152
1692	=item $success = $client->query ($flags, "text", \&cb)	3153	=item $success = $client->query ($flags, "text", \&cb)
1693		3154
1694	Queues a query to the client, calling the given callback with	3155	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>,	3156	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>.	3157	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1697		3158
1698	Queries can fail, so check the return code. Or don't, as queries will become	3159	Queries can fail, so check the return code. Or don't, as queries will
1699	reliable at some point in the future.	3160	become reliable at some point in the future.
1700		3161
1701	=cut	3162	=cut
1702		3163
1703	sub cf::client::query {	3164	sub cf::client::query {
1704	my ($self, $flags, $text, $cb) = @_;	3165	my ($self, $flags, $text, $cb) = @_;
…		…
1712	utf8::encode $text;	3173	utf8::encode $text;
1713	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3174	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1714		3175
1715	$self->send_packet ($self->{query_queue}[0][0])	3176	$self->send_packet ($self->{query_queue}[0][0])
1716	if @{ $self->{query_queue} } == 1;	3177	if @{ $self->{query_queue} } == 1;
		3178
		3179	1
1717	}	3180	}
1718		3181
1719	cf::client->attach (	3182	cf::client->attach (
		3183	on_connect => sub {
		3184	my ($ns) = @_;
		3185
		3186	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3187	},
1720	on_reply => sub {	3188	on_reply => sub {
1721	my ($ns, $msg) = @_;	3189	my ($ns, $msg) = @_;
1722		3190
1723	# this weird shuffling is so that direct followup queries	3191	# this weird shuffling is so that direct followup queries
1724	# get handled first	3192	# get handled first
1725	my $queue = delete $ns->{query_queue}	3193	my $queue = delete $ns->{query_queue}
1726	or return; # be conservative, not sure how that can happen, but we saw a crash here	3194	or return; # be conservative, not sure how that can happen, but we saw a crash here
1727		3195
1728	(shift @$queue)->[1]->($msg);	3196	(shift @$queue)->[1]->($msg);
		3197	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		3198
1730	push @{ $ns->{query_queue} }, @$queue;	3199	push @{ $ns->{query_queue} }, @$queue;
1731		3200
1732	if (@{ $ns->{query_queue} } == @$queue) {	3201	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	3202	if (@$queue) {
…		…
1735	} else {	3204	} else {
1736	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3205	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1737	}	3206	}
1738	}	3207	}
1739	},	3208	},
		3209	on_exticmd => sub {
		3210	my ($ns, $buf) = @_;
		3211
		3212	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3213
		3214	if (ref $msg) {
		3215	my ($type, $reply, @payload) =
		3216	"ARRAY" eq ref $msg
		3217	? @$msg
		3218	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3219
		3220	my @reply;
		3221
		3222	if (my $cb = $EXTICMD{$type}) {
		3223	@reply = $cb->($ns, @payload);
		3224	}
		3225
		3226	$ns->ext_reply ($reply, @reply)
		3227	if $reply;
		3228
		3229	} else {
		3230	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3231	}
		3232
		3233	cf::override;
		3234	},
1740	);	3235	);
1741		3236
1742	=item $client->coro (\&cb)	3237	=item $client->async (\&cb)
1743		3238
1744	Create a new coroutine, running the specified callback. The coroutine will	3239	Create a new coroutine, running the specified callback. The coroutine will
1745	be automatically cancelled when the client gets destroyed (e.g. on logout,	3240	be automatically cancelled when the client gets destroyed (e.g. on logout,
1746	or loss of connection).	3241	or loss of connection).
1747		3242
1748	=cut	3243	=cut
1749		3244
1750	sub cf::client::coro {	3245	sub cf::client::async {
1751	my ($self, $cb) = @_;	3246	my ($self, $cb) = @_;
1752		3247
1753	my $coro = &cf::async ($cb);	3248	my $coro = &Coro::async ($cb);
1754		3249
1755	$coro->on_destroy (sub {	3250	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	3251	delete $self->{_coro}{$coro+0};
1757	});	3252	});
1758		3253
…		…
1760		3255
1761	$coro	3256	$coro
1762	}	3257	}
1763		3258
1764	cf::client->attach (	3259	cf::client->attach (
1765	on_destroy => sub {	3260	on_client_destroy => sub {
1766	my ($ns) = @_;	3261	my ($ns) = @_;
1767		3262
1768	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3263	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1769	},	3264	},
1770	);	3265	);
…		…
1785	our $safe = new Safe "safe";	3280	our $safe = new Safe "safe";
1786	our $safe_hole = new Safe::Hole;	3281	our $safe_hole = new Safe::Hole;
1787		3282
1788	$SIG{FPE} = 'IGNORE';	3283	$SIG{FPE} = 'IGNORE';
1789		3284
1790	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3285	$safe->permit_only (Opcode::opset qw(
		3286	:base_core :base_mem :base_orig :base_math :base_loop
		3287	grepstart grepwhile mapstart mapwhile
		3288	sort time
		3289	));
1791		3290
1792	# here we export the classes and methods available to script code	3291	# here we export the classes and methods available to script code
1793		3292
1794	=pod	3293	=pod
1795		3294
1796	The following fucntions and emthods are available within a safe environment:	3295	The following functions and methods are available within a safe environment:
1797		3296
1798	cf::object contr pay_amount pay_player map	3297	cf::object
		3298	contr pay_amount pay_player map x y force_find force_add destroy
		3299	insert remove name archname title slaying race decrease split
		3300	value
		3301
1799	cf::object::player player	3302	cf::object::player
1800	cf::player peaceful	3303	player
1801	cf::map trigger	3304
		3305	cf::player
		3306	peaceful
		3307
		3308	cf::map
		3309	trigger
1802		3310
1803	=cut	3311	=cut
1804		3312
1805	for (	3313	for (
1806	["cf::object" => qw(contr pay_amount pay_player map)],	3314	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3315	insert remove inv nrof name archname title slaying race
		3316	decrease split destroy change_exp value msg lore send_msg)],
1807	["cf::object::player" => qw(player)],	3317	["cf::object::player" => qw(player)],
1808	["cf::player" => qw(peaceful)],	3318	["cf::player" => qw(peaceful send_msg)],
1809	["cf::map" => qw(trigger)],	3319	["cf::map" => qw(trigger)],
1810	) {	3320	) {
1811	no strict 'refs';
1812	my ($pkg, @funs) = @$_;	3321	my ($pkg, @funs) = @$_;
1813	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3322	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1814	for @funs;	3323	for @funs;
1815	}	3324	}
1816		3325
…		…
1831		3340
1832	my $qcode = $code;	3341	my $qcode = $code;
1833	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3342	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1834	$qcode =~ s/\n/\\n/g;	3343	$qcode =~ s/\n/\\n/g;
1835		3344
		3345	%vars = (_dummy => 0) unless %vars;
		3346
		3347	my @res;
1836	local $_;	3348	local $_;
1837	local @safe::cf::_safe_eval_args = values %vars;
1838		3349
1839	my $eval =	3350	my $eval =
1840	"do {\n"	3351	"do {\n"
1841	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3352	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1842	. "#line 0 \"{$qcode}\"\n"	3353	. "#line 0 \"{$qcode}\"\n"
1843	. $code	3354	. $code
1844	. "\n}"	3355	. "\n}"
1845	;	3356	;
1846		3357
		3358	if ($CFG{safe_eval}) {
1847	sub_generation_inc;	3359	sub_generation_inc;
		3360	local @safe::cf::_safe_eval_args = values %vars;
1848	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3361	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1849	sub_generation_inc;	3362	sub_generation_inc;
		3363	} else {
		3364	local @cf::_safe_eval_args = values %vars;
		3365	@res = wantarray ? eval eval : scalar eval $eval;
		3366	}
1850		3367
1851	if ($@) {	3368	if ($@) {
1852	warn "$@";	3369	warn "$@",
1853	warn "while executing safe code '$code'\n";	3370	"while executing safe code '$code'\n",
1854	warn "with arguments " . (join " ", %vars) . "\n";	3371	"with arguments " . (join " ", %vars) . "\n";
1855	}	3372	}
1856		3373
1857	wantarray ? @res : $res[0]	3374	wantarray ? @res : $res[0]
1858	}	3375	}
1859		3376
…		…
1873	=cut	3390	=cut
1874		3391
1875	sub register_script_function {	3392	sub register_script_function {
1876	my ($fun, $cb) = @_;	3393	my ($fun, $cb) = @_;
1877		3394
1878	no strict 'refs';	3395	$fun = "safe::$fun" if $CFG{safe_eval};
1879	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3396	*$fun = $safe_hole->wrap ($cb);
1880	}	3397	}
1881		3398
1882	=back	3399	=back
1883		3400
1884	=cut	3401	=cut
1885		3402
1886	#############################################################################	3403	#############################################################################
		3404	# the server's init and main functions
1887		3405
1888	=head2 EXTENSION DATABASE SUPPORT	3406	sub load_facedata($) {
		3407	my ($path) = @_;
1889		3408
1890	Crossfire maintains a very simple database for extension use. It can	3409	# HACK to clear player env face cache, we need some signal framework
1891	currently store anything that can be serialised using Storable, which	3410	# for this (global event?)
1892	excludes objects.	3411	%ext::player_env::MUSIC_FACE_CACHE = ();
1893		3412
1894	The parameter C<$family> should best start with the name of the extension	3413	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1895	using it, it should be unique.
1896		3414
1897	=over 4	3415	trace "loading facedata from $path\n";
1898		3416
1899	=item $hashref = cf::db_get $family	3417	0 < aio_load $path, my $facedata
		3418	or die "$path: $!";
1900		3419
1901	Return a hashref for use by the extension C<$family>, which can be	3420	$facedata = Coro::Storable::thaw $facedata;
1902	modified. After modifications, you have to call C<cf::db_dirty> or
1903	C<cf::db_sync>.
1904		3421
1905	=item $value = cf::db_get $family => $key	3422	$facedata->{version} == 2
		3423	or cf::cleanup "$path: version mismatch, cannot proceed.";
1906		3424
1907	Returns a single value from the database	3425	# patch in the exptable
1908		3426	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1909	=item cf::db_put $family => $hashref	3427	$facedata->{resource}{"res/exp_table"} = {
1910		3428	type => FT_RSRC,
1911	Stores the given family hashref into the database. Updates are delayed, if	3429	data => $exp_table,
1912	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3430	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	});	3431	};
		3432	cf::cede_to_tick;
1960		3433
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}	3434	{
		3435	my $faces = $facedata->{faceinfo};
1965		3436
1966	sub db_get($;$) {	3437	while (my ($face, $info) = each %$faces) {
1967	@_ >= 2	3438	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1968	? $DB->{$_[0]}{$_[1]}
1969	: ($DB->{$_[0]} ||= { })
1970	}
1971		3439
1972	sub db_put($$;$) {	3440	cf::face::set_visibility $idx, $info->{visibility};
1973	if (@_ >= 3) {	3441	cf::face::set_magicmap $idx, $info->{magicmap};
1974	$DB->{$_[0]}{$_[1]} = $_[2];	3442	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1975	} else {	3443	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1976	$DB->{$_[0]} = $_[1];
1977	}
1978	db_dirty;
1979	}
1980		3444
1981	cf::global->attach (	3445	cf::cede_to_tick;
1982	prio => 10000,
1983	on_cleanup => sub {
1984	db_sync;
1985	},	3446	}
1986	);
1987	}
1988		3447
1989	#############################################################################	3448	while (my ($face, $info) = each %$faces) {
1990	# the server's main()	3449	next unless $info->{smooth};
1991		3450
1992	sub cfg_load {	3451	my $idx = cf::face::find $face
1993	open my $fh, "<:utf8", cf::confdir . "/config"	3452	or next;
1994	or return;
1995		3453
1996	local $/;	3454	if (my $smooth = cf::face::find $info->{smooth}) {
1997	*CFG = YAML::Syck::Load <$fh>;	3455	cf::face::set_smooth $idx, $smooth;
		3456	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3457	} else {
		3458	error "smooth face '$info->{smooth}' not found for face '$face'";
		3459	}
1998		3460
		3461	cf::cede_to_tick;
		3462	}
		3463	}
		3464
		3465	{
		3466	my $anims = $facedata->{animinfo};
		3467
		3468	while (my ($anim, $info) = each %$anims) {
		3469	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3470	cf::cede_to_tick;
		3471	}
		3472
		3473	cf::anim::invalidate_all; # d'oh
		3474	}
		3475
		3476	{
		3477	my $res = $facedata->{resource};
		3478
		3479	while (my ($name, $info) = each %$res) {
		3480	if (defined $info->{type}) {
		3481	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3482
		3483	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3484	cf::face::set_type $idx, $info->{type};
		3485	} else {
		3486	$RESOURCE{$name} = $info; # unused
		3487	}
		3488
		3489	cf::cede_to_tick;
		3490	}
		3491	}
		3492
		3493	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3494
		3495	1
		3496	}
		3497
		3498	register_exticmd fx_want => sub {
		3499	my ($ns, $want) = @_;
		3500
		3501	while (my ($k, $v) = each %$want) {
		3502	$ns->fx_want ($k, $v);
		3503	}
		3504	};
		3505
		3506	sub load_resource_file($) {
		3507	my $guard = lock_acquire "load_resource_file";
		3508
		3509	my $status = load_resource_file_ $_[0];
		3510	get_slot 0.1, 100;
		3511	cf::arch::commit_load;
		3512
		3513	$status
		3514	}
		3515
		3516	sub reload_regions {
		3517	# HACK to clear player env face cache, we need some signal framework
		3518	# for this (global event?)
		3519	%ext::player_env::MUSIC_FACE_CACHE = ();
		3520
		3521	load_resource_file "$MAPDIR/regions"
		3522	or die "unable to load regions file\n";
		3523
		3524	for (cf::region::list) {
		3525	$_->{match} = qr/$_->{match}/
		3526	if exists $_->{match};
		3527	}
		3528	}
		3529
		3530	sub reload_facedata {
		3531	load_facedata "$DATADIR/facedata"
		3532	or die "unable to load facedata\n";
		3533	}
		3534
		3535	sub reload_archetypes {
		3536	load_resource_file "$DATADIR/archetypes"
		3537	or die "unable to load archetypes\n";
		3538	}
		3539
		3540	sub reload_treasures {
		3541	load_resource_file "$DATADIR/treasures"
		3542	or die "unable to load treasurelists\n";
		3543	}
		3544
		3545	sub reload_sound {
		3546	trace "loading sound config from $DATADIR/sound\n";
		3547
		3548	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3549	or die "$DATADIR/sound $!";
		3550
		3551	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3552
		3553	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3554	my $sound = $soundconf->{compat}[$_]
		3555	or next;
		3556
		3557	my $face = cf::face::find "sound/$sound->[1]";
		3558	cf::sound::set $sound->[0] => $face;
		3559	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3560	}
		3561
		3562	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3563	my $face = cf::face::find "sound/$v";
		3564	cf::sound::set $k => $face;
		3565	}
		3566	}
		3567
		3568	sub reload_resources {
		3569	trace "reloading resource files...\n";
		3570
		3571	reload_exp_table;
		3572	reload_materials;
		3573	reload_facedata;
		3574	reload_sound;
		3575	reload_archetypes;
		3576	reload_regions;
		3577	reload_treasures;
		3578
		3579	trace "finished reloading resource files\n";
		3580	}
		3581
		3582	sub reload_config {
		3583	trace "reloading config file...\n";
		3584
		3585	0 < aio_load "$CONFDIR/config", my $config
		3586	or die "$CONFDIR/config: $!";
		3587
		3588	utf8::decode $config;
		3589	*CFG = yaml_load $config;
		3590
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3591	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3592
		3593	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3594	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2000		3595
2001	if (exists $CFG{mlockall}) {	3596	if (exists $CFG{mlockall}) {
2002	eval {	3597	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	3598	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	3599	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	3600	};
2006	warn $@ if $@;	3601	warn $@ if $@;
2007	}	3602	}
2008	}	3603	}
2009		3604
		3605	sub pidfile() {
		3606	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3607	or die "$PIDFILE: $!";
		3608	flock $fh, &Fcntl::LOCK_EX
		3609	or die "$PIDFILE: flock: $!";
		3610	$fh
		3611	}
		3612
		3613	# make sure only one server instance is running at any one time
		3614	sub atomic {
		3615	my $fh = pidfile;
		3616
		3617	my $pid = <$fh>;
		3618	kill 9, $pid if $pid > 0;
		3619
		3620	seek $fh, 0, 0;
		3621	print $fh $$;
		3622	}
		3623
		3624	sub main_loop {
		3625	trace "EV::loop starting\n";
		3626	if (1) {
		3627	EV::loop;
		3628	}
		3629	trace "EV::loop returned\n";
		3630	goto &main_loop unless $REALLY_UNLOOP;
		3631	}
		3632
2010	sub main {	3633	sub main {
		3634	cf::init_globals; # initialise logging
		3635
		3636	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3637	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3638	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3639	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3640
		3641	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3642
2011	# we must not ever block the main coroutine	3643	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	3644	local $Coro::idle = sub {
2013	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3645	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2014	(Coro::unblock_sub {	3646	(async {
2015	Event::one_event;	3647	$Coro::current->{desc} = "IDLE BUG HANDLER";
2016	})->();	3648	EV::loop EV::LOOP_ONESHOT;
		3649	})->prio (Coro::PRIO_MAX);
2017	};	3650	};
2018		3651
2019	cfg_load;	3652	evthread_start IO::AIO::poll_fileno;
2020	db_load;	3653
		3654	cf::sync_job {
		3655	cf::incloader::init ();
		3656
		3657	cf::init_anim;
		3658	cf::init_attackmess;
		3659	cf::init_dynamic;
		3660
		3661	cf::load_settings;
		3662
		3663	reload_resources;
		3664	reload_config;
		3665	db_init;
		3666
		3667	cf::init_uuid;
		3668	cf::init_signals;
		3669	cf::init_skills;
		3670
		3671	cf::init_beforeplay;
		3672
		3673	atomic;
		3674
2021	load_extensions;	3675	load_extensions;
2022	Event::loop;	3676
		3677	utime time, time, $RUNTIMEFILE;
		3678
		3679	# no (long-running) fork's whatsoever before this point(!)
		3680	use POSIX ();
		3681	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3682
		3683	cf::_post_init 0;
		3684	};
		3685
		3686	cf::object::thawer::errors_are_fatal 0;
		3687	info "parse errors in files are no longer fatal from this point on.\n";
		3688
		3689	my $free_main; $free_main = EV::idle sub {
		3690	undef $free_main;
		3691	undef &main; # free gobs of memory :)
		3692	};
		3693
		3694	goto &main_loop;
2023	}	3695	}
2024		3696
2025	#############################################################################	3697	#############################################################################
2026	# initialisation	3698	# initialisation and cleanup
2027		3699
		3700	# install some emergency cleanup handlers
		3701	BEGIN {
		3702	our %SIGWATCHER = ();
		3703	for my $signal (qw(INT HUP TERM)) {
		3704	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3705	cf::cleanup "SIG$signal";
		3706	};
		3707	}
		3708	}
		3709
		3710	sub write_runtime_sync {
		3711	my $t0 = AE::time;
		3712
		3713	# first touch the runtime file to show we are still running:
		3714	# the fsync below can take a very very long time.
		3715
		3716	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3717
		3718	my $guard = cf::lock_acquire "write_runtime";
		3719
		3720	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3721	or return;
		3722
		3723	my $value = $cf::RUNTIME + 90 + 10;
		3724	# 10 is the runtime save interval, for a monotonic clock
		3725	# 60 allows for the watchdog to kill the server.
		3726
		3727	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3728	and return;
		3729
		3730	# always fsync - this file is important
		3731	aio_fsync $fh
		3732	and return;
		3733
		3734	# touch it again to show we are up-to-date
		3735	aio_utime $fh, undef, undef;
		3736
		3737	close $fh
		3738	or return;
		3739
		3740	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3741	and return;
		3742
		3743	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3744
		3745	1
		3746	}
		3747
		3748	our $uuid_lock;
		3749	our $uuid_skip;
		3750
		3751	sub write_uuid_sync($) {
		3752	$uuid_skip ||= $_[0];
		3753
		3754	return if $uuid_lock;
		3755	local $uuid_lock = 1;
		3756
		3757	my $uuid = "$LOCALDIR/uuid";
		3758
		3759	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3760	or return;
		3761
		3762	my $value = uuid_seq uuid_cur;
		3763
		3764	unless ($value) {
		3765	info "cowardly refusing to write zero uuid value!\n";
		3766	return;
		3767	}
		3768
		3769	my $value = uuid_str $value + $uuid_skip;
		3770	$uuid_skip = 0;
		3771
		3772	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3773	and return;
		3774
		3775	# always fsync - this file is important
		3776	aio_fsync $fh
		3777	and return;
		3778
		3779	close $fh
		3780	or return;
		3781
		3782	aio_rename "$uuid~", $uuid
		3783	and return;
		3784
		3785	trace "uuid file written ($value).\n";
		3786
		3787	1
		3788
		3789	}
		3790
		3791	sub write_uuid($$) {
		3792	my ($skip, $sync) = @_;
		3793
		3794	$sync ? write_uuid_sync $skip
		3795	: async { write_uuid_sync $skip };
		3796	}
		3797
		3798	sub emergency_save() {
		3799	my $freeze_guard = cf::freeze_mainloop;
		3800
		3801	info "emergency_perl_save: enter\n";
		3802
		3803	# this is a trade-off: we want to be very quick here, so
		3804	# save all maps without fsync, and later call a global sync
		3805	# (which in turn might be very very slow)
		3806	local $USE_FSYNC = 0;
		3807
		3808	cf::sync_job {
		3809	cf::write_runtime_sync; # external watchdog should not bark
		3810
		3811	# use a peculiar iteration method to avoid tripping on perl
		3812	# refcount bugs in for. also avoids problems with players
		3813	# and maps saved/destroyed asynchronously.
		3814	info "emergency_perl_save: begin player save\n";
		3815	for my $login (keys %cf::PLAYER) {
		3816	my $pl = $cf::PLAYER{$login} or next;
		3817	$pl->valid or next;
		3818	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3819	$pl->save;
		3820	}
		3821	info "emergency_perl_save: end player save\n";
		3822
		3823	cf::write_runtime_sync; # external watchdog should not bark
		3824
		3825	info "emergency_perl_save: begin map save\n";
		3826	for my $path (keys %cf::MAP) {
		3827	my $map = $cf::MAP{$path} or next;
		3828	$map->valid or next;
		3829	$map->save;
		3830	}
		3831	info "emergency_perl_save: end map save\n";
		3832
		3833	cf::write_runtime_sync; # external watchdog should not bark
		3834
		3835	info "emergency_perl_save: begin database checkpoint\n";
		3836	BDB::db_env_txn_checkpoint $DB_ENV;
		3837	info "emergency_perl_save: end database checkpoint\n";
		3838
		3839	info "emergency_perl_save: begin write uuid\n";
		3840	write_uuid_sync 1;
		3841	info "emergency_perl_save: end write uuid\n";
		3842
		3843	cf::write_runtime_sync; # external watchdog should not bark
		3844
		3845	trace "emergency_perl_save: syncing database to disk";
		3846	BDB::db_env_txn_checkpoint $DB_ENV;
		3847
		3848	info "emergency_perl_save: starting sync\n";
		3849	IO::AIO::aio_sync sub {
		3850	info "emergency_perl_save: finished sync\n";
		3851	};
		3852
		3853	cf::write_runtime_sync; # external watchdog should not bark
		3854
		3855	trace "emergency_perl_save: flushing outstanding aio requests";
		3856	while (IO::AIO::nreqs || BDB::nreqs) {
		3857	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3858	}
		3859
		3860	cf::write_runtime_sync; # external watchdog should not bark
		3861	};
		3862
		3863	info "emergency_perl_save: leave\n";
		3864	}
		3865
		3866	sub post_cleanup {
		3867	my ($make_core) = @_;
		3868
		3869	IO::AIO::flush;
		3870
		3871	error Carp::longmess "post_cleanup backtrace"
		3872	if $make_core;
		3873
		3874	my $fh = pidfile;
		3875	unlink $PIDFILE if <$fh> == $$;
		3876	}
		3877
		3878	# a safer delete_package, copied from Symbol
		3879	sub clear_package($) {
		3880	my $pkg = shift;
		3881
		3882	# expand to full symbol table name if needed
		3883	unless ($pkg =~ /^main::.*::$/) {
		3884	$pkg = "main$pkg" if $pkg =~ /^::/;
		3885	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3886	$pkg .= '::' unless $pkg =~ /::$/;
		3887	}
		3888
		3889	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3890	my $stem_symtab = *{$stem}{HASH};
		3891
		3892	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3893	or return;
		3894
		3895	# clear all symbols
		3896	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3897	for my $name (keys %$leaf_symtab) {
		3898	_gv_clear *{"$pkg$name"};
		3899	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3900	}
		3901	}
		3902
2028	sub reload() {	3903	sub do_reload_perl() {
2029	# can/must only be called in main	3904	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	3905	unless (in_main) {
2031	warn "can only reload from main coroutine\n";	3906	error "can only reload from main coroutine";
2032	return;	3907	return;
2033	}	3908	}
2034		3909
2035	warn "reloading...";	3910	return if $RELOAD++;
2036		3911
2037	my $guard = freeze_mainloop;	3912	my $t1 = AE::time;
		3913
		3914	while ($RELOAD) {
		3915	cf::get_slot 0.1, -1, "reload_perl";
		3916	info "perl_reload: reloading...";
		3917
		3918	trace "perl_reload: entering sync_job";
		3919
		3920	cf::sync_job {
2038	cf::emergency_save;	3921	#cf::emergency_save;
2039		3922
2040	eval {	3923	trace "perl_reload: cancelling all extension coros";
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
2049	$_->cancel for values %EXT_CORO;	3924	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();	3925	%EXT_CORO = ();
2051		3926
2052	# unload all extensions	3927	trace "perl_reload: removing commands";
2053	for (@exts) {	3928	%COMMAND = ();
2054	warn "unloading <$_>";
2055	unload_extension $_;
2056	}
2057		3929
2058	# unload all modules loaded from $LIBDIR	3930	trace "perl_reload: removing ext/exti commands";
2059	while (my ($k, $v) = each %INC) {	3931	%EXTCMD = ();
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3932	%EXTICMD = ();
2061		3933
2062	warn "removing <$k>";	3934	trace "perl_reload: unloading/nuking all extensions";
2063	delete $INC{$k};	3935	for my $pkg (@EXTS) {
		3936	trace "... unloading $pkg";
2064		3937
2065	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;
2067
2068	if (my $cb = $k->can ("unload_module")) {	3938	if (my $cb = $pkg->can ("unload")) {
		3939	eval {
2069	$cb->();	3940	$cb->($pkg);
		3941	1
		3942	} or error "$pkg unloaded, but with errors: $@";
		3943	}
		3944
		3945	trace "... clearing $pkg";
		3946	clear_package $pkg;
2070	}	3947	}
2071		3948
2072	Symbol::delete_package $k;	3949	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3950	while (my ($k, $v) = each %INC) {
		3951	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3952
		3953	trace "... unloading $k";
		3954	delete $INC{$k};
		3955
		3956	$k =~ s/\.pm$//;
		3957	$k =~ s/\//::/g;
		3958
		3959	if (my $cb = $k->can ("unload_module")) {
		3960	$cb->();
		3961	}
		3962
		3963	clear_package $k;
2073	}	3964	}
2074		3965
2075	# sync database to disk
2076	cf::db_sync;
2077	IO::AIO::flush;
2078
2079	# get rid of safe::, as good as possible	3966	trace "perl_reload: getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	3967	clear_package "safe::$_"
2081	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3968	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2082		3969
2083	# remove register_script_function callbacks	3970	trace "perl_reload: unloading cf.pm \"a bit\"";
2084	# TODO
2085
2086	# unload cf.pm "a bit"
2087	delete $INC{"cf.pm"};	3971	delete $INC{"cf.pm"};
		3972	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2088		3973
2089	# don't, removes xs symbols, too,	3974	# don't, removes xs symbols, too,
2090	# and global variables created in xs	3975	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	3976	#clear_package __PACKAGE__;
2092		3977
2093	# reload cf.pm	3978	info "perl_reload: unload completed, starting to reload now";
2094	warn "reloading cf.pm";	3979
		3980	trace "perl_reload: reloading cf.pm";
2095	require cf;	3981	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3982	cf::_connect_to_perl_1;
2097		3983
2098	# load config and database again	3984	trace "perl_reload: loading config and database again";
2099	cf::cfg_load;	3985	cf::reload_config;
2100	cf::db_load;
2101		3986
2102	# load extensions	3987	trace "perl_reload: loading extensions";
2103	warn "load extensions";
2104	cf::load_extensions;	3988	cf::load_extensions;
2105		3989
2106	# reattach attachments to objects	3990	if ($REATTACH_ON_RELOAD) {
2107	warn "reattach";	3991	trace "perl_reload: reattaching attachments to objects/players";
2108	_global_reattach;	3992	_global_reattach; # objects, sockets
		3993	trace "perl_reload: reattaching attachments to maps";
		3994	reattach $_ for values %MAP;
		3995	trace "perl_reload: reattaching attachments to players";
		3996	reattach $_ for values %PLAYER;
		3997	}
		3998
		3999	cf::_post_init 1;
		4000
		4001	trace "perl_reload: leaving sync_job";
		4002
		4003	1
		4004	} or do {
		4005	error $@;
		4006	cf::cleanup "perl_reload: error, exiting.";
		4007	};
		4008
		4009	--$RELOAD;
		4010	}
		4011
		4012	$t1 = AE::time - $t1;
		4013	info "perl_reload: completed in ${t1}s\n";
		4014	};
		4015
		4016	our $RELOAD_WATCHER; # used only during reload
		4017
		4018	sub reload_perl() {
		4019	# doing reload synchronously and two reloads happen back-to-back,
		4020	# coro crashes during coro_state_free->destroy here.
		4021
		4022	$RELOAD_WATCHER ||= cf::async {
		4023	Coro::AIO::aio_wait cache_extensions;
		4024
		4025	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4026	do_reload_perl;
		4027	undef $RELOAD_WATCHER;
		4028	};
2109	};	4029	};
2110
2111	if ($@) {
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} = $LINK_MAP;
2161	}	4030	}
2162
2163	register "<global>", __PACKAGE__;
2164		4031
2165	register_command "reload" => sub {	4032	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	4033	my ($who, $arg) = @_;
2167		4034
2168	if ($who->flag (FLAG_WIZ)) {	4035	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");
2170	reload;
2171	$who->message ("end of reload.");	4036	$who->message ("reloading server.");
		4037	async {
		4038	$Coro::current->{desc} = "perl_reload";
		4039	reload_perl;
		4040	};
2172	}	4041	}
2173	};	4042	};
2174		4043
2175	unshift @INC, $LIBDIR;	4044	#############################################################################
2176		4045
2177	$TICK_WATCHER = Event->timer (	4046	my $bug_warning = 0;
2178	reentrant => 0,	4047
2179	prio => 0,	4048	our @WAIT_FOR_TICK;
2180	at => $NEXT_TICK || $TICK,	4049	our @WAIT_FOR_TICK_BEGIN;
2181	data => WF_AUTOCANCEL,	4050
2182	cb => sub {	4051	sub wait_for_tick() {
		4052	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4053
		4054	my $signal = new Coro::Signal;
		4055	push @WAIT_FOR_TICK, $signal;
		4056	$signal->wait;
		4057	}
		4058
		4059	sub wait_for_tick_begin() {
		4060	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4061
		4062	my $signal = new Coro::Signal;
		4063	push @WAIT_FOR_TICK_BEGIN, $signal;
		4064	$signal->wait;
		4065	}
		4066
		4067	sub tick {
		4068	if ($Coro::current != $Coro::main) {
		4069	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4070	unless ++$bug_warning > 10;
		4071	return;
		4072	}
		4073
2183	cf::server_tick; # one server iteration	4074	cf::server_tick; # one server iteration
2184	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;
2186		4075
2187	# if we are delayed by four ticks or more, skip them all	4076	#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		4077
2190	$TICK_WATCHER->at ($NEXT_TICK);	4078	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2191	$TICK_WATCHER->start;	4079	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2192	},	4080	Coro::async_pool {
2193	);	4081	$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	4082	write_runtime_sync
2212	or warn "ERROR: unable to write runtime file: $!";	4083	or error "ERROR: unable to write runtime file: $!";
2213	})->();	4084	};
2214	},	4085	}
2215	);	4086
		4087	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4088	$sig->send;
		4089	}
		4090	while (my $sig = shift @WAIT_FOR_TICK) {
		4091	$sig->send;
		4092	}
		4093
		4094	$LOAD = ($NOW - $TICK_START) / $TICK;
		4095	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4096
		4097	if (0) {
		4098	if ($NEXT_TICK) {
		4099	my $jitter = $TICK_START - $NEXT_TICK;
		4100	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4101	debug "jitter $JITTER\n";#d#
		4102	}
		4103	}
		4104	}
		4105
		4106	{
		4107	# configure BDB
		4108
		4109	BDB::min_parallel 16;
		4110	BDB::max_poll_reqs $TICK * 0.1;
		4111	$AnyEvent::BDB::WATCHER->priority (1);
		4112
		4113	unless ($DB_ENV) {
		4114	$DB_ENV = BDB::db_env_create;
		4115	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4116	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4117	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4118	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4119	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4120
		4121	cf::sync_job {
		4122	eval {
		4123	BDB::db_env_open
		4124	$DB_ENV,
		4125	$BDBDIR,
		4126	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4127	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4128	0666;
		4129
		4130	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4131	};
		4132
		4133	cf::cleanup "db_env_open(db): $@" if $@;
		4134	};
		4135	}
		4136
		4137	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4138	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4139	};
		4140	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4141	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4142	};
		4143	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4144	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4145	};
		4146	}
		4147
		4148	{
		4149	# configure IO::AIO
		4150
		4151	IO::AIO::min_parallel 8;
		4152	IO::AIO::max_poll_time $TICK * 0.1;
		4153	undef $AnyEvent::AIO::WATCHER;
		4154	}
		4155
		4156	our $_log_backtrace;
		4157	our $_log_backtrace_last;
		4158
		4159	sub _log_backtrace {
		4160	my ($msg, @addr) = @_;
		4161
		4162	$msg =~ s/\n$//;
		4163
		4164	if ($_log_backtrace_last eq $msg) {
		4165	LOG llevInfo, "[ABT] $msg\n";
		4166	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4167	# limit the # of concurrent backtraces
		4168	} elsif ($_log_backtrace < 2) {
		4169	$_log_backtrace_last = $msg;
		4170	++$_log_backtrace;
		4171	my $perl_bt = Carp::longmess $msg;
		4172	async {
		4173	$Coro::current->{desc} = "abt $msg";
		4174
		4175	my @bt = fork_call {
		4176	@addr = map { sprintf "%x", $_ } @addr;
		4177	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4178	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4179	or die "addr2line: $!";
		4180
		4181	my @funcs;
		4182	my @res = <$fh>;
		4183	chomp for @res;
		4184	while (@res) {
		4185	my ($func, $line) = splice @res, 0, 2, ();
		4186	push @funcs, "[$func] $line";
		4187	}
		4188
		4189	@funcs
		4190	};
		4191
		4192	LOG llevInfo, "[ABT] $perl_bt\n";
		4193	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4194	LOG llevInfo, "[ABT] $_\n" for @bt;
		4195	--$_log_backtrace;
		4196	};
		4197	} else {
		4198	LOG llevInfo, "[ABT] $msg\n";
		4199	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4200	}
		4201	}
		4202
		4203	# load additional modules
		4204	require "cf/$_.pm" for @EXTRA_MODULES;
		4205	cf::_connect_to_perl_2;
2216		4206
2217	END { cf::emergency_save }	4207	END { cf::emergency_save }
2218		4208
2219	1	4209	1
2220		4210

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