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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.139 by root, Fri Jan 5 19:12:03 2007 UTC vs.
Revision 1.552 by root, Mon May 17 21:12:59 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 (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
		78
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98	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
217
218	$LOCK{$key} = [];
219
220	Coro::guard {
221	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };
223	}
224	}	440	}
225		441
226	sub freeze_mainloop {	442	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	443	tick_inhibit_inc;
228		444
229	my $guard = Coro::guard { $TICK_WATCHER->start };	445	&Guard::guard (\&tick_inhibit_dec);
230	$TICK_WATCHER->stop;
231	$guard
232	}	446	}
		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($$) {
		456	my ($interval, $cb) = @_;
		457
		458	my $start = rand List::Util::min 180, $interval;
		459
		460	EV::periodic $start, $interval, 0, $cb
		461	}
		462
		463	=item cf::get_slot $time[, $priority[, $name]]
		464
		465	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		466	This call blocks and returns only when you have at least C<$time> seconds
		467	of cpu time till the next tick. The slot is only valid till the next cede.
		468
		469	The optional C<$name> can be used to identify the job to run. It might be
		470	used for statistical purposes and should identify the same time-class.
		471
		472	Useful for short background jobs.
		473
		474	=cut
		475
		476	our @SLOT_QUEUE;
		477	our $SLOT_QUEUE;
		478	our $SLOT_DECAY = 0.9;
		479
		480	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		481	$SLOT_QUEUE = Coro::async {
		482	$Coro::current->desc ("timeslot manager");
		483
		484	my $signal = new Coro::Signal;
		485	my $busy;
		486
		487	while () {
		488	next_job:
		489
		490	my $avail = cf::till_tick;
		491
		492	for (0 .. $#SLOT_QUEUE) {
		493	if ($SLOT_QUEUE[$_][0] <= $avail) {
		494	$busy = 0;
		495	my $job = splice @SLOT_QUEUE, $_, 1, ();
		496	$job->[2]->send;
		497	Coro::cede;
		498	goto next_job;
		499	} else {
		500	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		501	}
		502	}
		503
		504	if (@SLOT_QUEUE) {
		505	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		506	push @cf::WAIT_FOR_TICK, $signal;
		507	$signal->wait;
		508	} else {
		509	$busy = 0;
		510	Coro::schedule;
		511	}
		512	}
		513	};
		514
		515	sub get_slot($;$$) {
		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	$sig->wait;
		528	}
		529
		530	=item cf::async { BLOCK }
		531
		532	Currently the same as Coro::async_pool, meaning you cannot use
		533	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		534	thing you are allowed to do is call C<prio> on it.
		535
		536	=cut
		537
		538	BEGIN { *async = \&Coro::async_pool }
233		539
234	=item cf::sync_job { BLOCK }	540	=item cf::sync_job { BLOCK }
235		541
236	The design of crossfire+ requires that the main coro ($Coro::main) is	542	The design of Deliantra requires that the main coroutine ($Coro::main)
237	always able to handle events or runnable, as crossfire+ is only partly	543	is always able to handle events or runnable, as Deliantra is only
238	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	544	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		545	acceptable.
239		546
240	If it must be done, put the blocking parts into C<sync_job>. This will run	547	If it must be done, put the blocking parts into C<sync_job>. This will run
241	the given BLOCK in another coroutine while waiting for the result. The	548	the given BLOCK in another coroutine while waiting for the result. The
242	server will be frozen during this time, so the block should either finish	549	server will be frozen during this time, so the block should either finish
243	fast or be very important.	550	fast or be very important.
…		…
245	=cut	552	=cut
246		553
247	sub sync_job(&) {	554	sub sync_job(&) {
248	my ($job) = @_;	555	my ($job) = @_;
249		556
250	if ($Coro::current == $Coro::main) {	557	if (in_main) {
		558	my $time = AE::time;
		559
251	# this is the main coro, too bad, we have to block	560	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	561	# till the operation succeeds, freezing the server :/
253		562
254	# TODO: use suspend/resume instead	563	#LOG llevError, Carp::longmess "sync job";#d#
255	# (but this is cancel-safe)	564
256	my $freeze_guard = freeze_mainloop;	565	my $freeze_guard = freeze_mainloop;
257		566
258	my $busy = 1;	567	my $busy = 1;
259	my @res;	568	my @res;
260		569
261	(Coro::async_pool {	570	(async {
		571	$Coro::current->desc ("sync job coro");
262	@res = eval { $job->() };	572	@res = eval { $job->() };
263	warn $@ if $@;	573	error $@ if $@;
264	undef $busy;	574	undef $busy;
265	})->prio (Coro::PRIO_MAX);	575	})->prio (Coro::PRIO_MAX);
266		576
267	while ($busy) {	577	while ($busy) {
268	unless (Coro::cede) {	578	if (Coro::nready) {
269	Coro::nready ? Event::one_event 0 : Event::one_event;
270	Coro::cede_notself unless Coro::cede;	579	Coro::cede_notself;
		580	} else {
		581	EV::loop EV::LOOP_ONESHOT;
271	}	582	}
272	}	583	}
		584
		585	my $time = AE::time - $time;
		586
		587	$TICK_START += $time; # do not account sync jobs to server load
273		588
274	wantarray ? @res : $res[0]	589	wantarray ? @res : $res[0]
275	} else {	590	} else {
276	# we are in another coroutine, how wonderful, everything just works	591	# we are in another coroutine, how wonderful, everything just works
277		592
278	$job->()	593	$job->()
279	}	594	}
280	}	595	}
281		596
282	=item $coro = cf::coro { BLOCK }	597	=item $coro = cf::async_ext { BLOCK }
283		598
284	Creates (and readies) and returns a new coro. This coro is automcatially	599	Like async, but this coro is automatically being canceled when the
285	being canceled when the extension calling this is being unloaded.	600	extension calling this is being unloaded.
286		601
287	=cut	602	=cut
288		603
289	sub coro(&) {	604	sub async_ext(&) {
290	my $cb = shift;	605	my $cb = shift;
291		606
292	my $coro = &Coro::async_pool ($cb);	607	my $coro = &Coro::async ($cb);
293		608
294	$coro->on_destroy (sub {	609	$coro->on_destroy (sub {
295	delete $EXT_CORO{$coro+0};	610	delete $EXT_CORO{$coro+0};
296	});	611	});
297	$EXT_CORO{$coro+0} = $coro;	612	$EXT_CORO{$coro+0} = $coro;
298		613
299	$coro	614	$coro
300	}	615	}
301		616
302	sub write_runtime {	617	=item fork_call { }, @args
303	my $runtime = cf::localdir . "/runtime";
304		618
305	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	619	Executes the given code block with the given arguments in a seperate
306	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.
307		623
308	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	624	=cut
309	(aio_write $fh, 0, (length $value), $value, 0) <= 0
310	and return;
311		625
312	aio_fsync $fh	626	sub post_fork {
313	and return;	627	reset_signals;
		628	}
314		629
315	close $fh	630	sub fork_call(&@) {
316	or return;	631	my ($cb, @args) = @_;
317		632
318	aio_rename "$runtime~", $runtime	633	# we seemingly have to make a local copy of the whole thing,
319	and return;	634	# otherwise perl prematurely frees the stuff :/
		635	# TODO: investigate and fix (likely this will be rather laborious)
320		636
		637	my @res = Coro::Util::fork_eval {
		638	cf::post_fork;
		639	&$cb
		640	} @args;
		641
		642	wantarray ? @res : $res[-1]
		643	}
		644
		645	sub objinfo {
321	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 => $type });
322	}	821	}
323		822
324	=back	823	=back
325		824
326	=cut	825	=cut
327		826
328	#############################################################################	827	#############################################################################
329		828
330	package cf::path;
331
332	sub new {
333	my ($class, $path, $base) = @_;
334
335	$path = $path->as_string if ref $path;
336
337	my $self = bless { }, $class;
338
339	# {... are special paths that are not touched
340	# ?xxx/... are special absolute paths
341	# ?random/... random maps
342	# /! non-realised random map exit
343	# /... normal maps
344	# ~/... per-player maps without a specific player (DO NOT USE)
345	# ~user/... per-player map of a specific user
346
347	if ($path =~ /^{/) {
348	# fine as it is
349	} elsif ($path =~ s{^\?random/}{}) {
350	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
351	$self->{random} = cf::from_json $data;
352	} else {
353	if ($path =~ s{^~([^/]+)?}{}) {
354	$self->{user_rel} = 1;
355
356	if (defined $1) {
357	$self->{user} = $1;
358	} elsif ($base =~ m{^~([^/]+)/}) {
359	$self->{user} = $1;
360	} else {
361	warn "cannot resolve user-relative path without user <$path,$base>\n";
362	}
363	} elsif ($path =~ /^\//) {
364	# already absolute
365	} else {
366	$base =~ s{[^/]+/?$}{};
367	return $class->new ("$base/$path");
368	}
369
370	for ($path) {
371	redo if s{/\.?/}{/};
372	redo if s{/[^/]+/\.\./}{/};
373	}
374	}
375
376	$self->{path} = $path;
377
378	$self
379	}
380
381	# the name / primary key / in-game path
382	sub as_string {
383	my ($self) = @_;
384
385	$self->{user_rel} ? "~$self->{user}$self->{path}"
386	: $self->{random} ? "?random/$self->{path}"
387	: $self->{path}
388	}
389
390	# the displayed name, this is a one way mapping
391	sub visible_name {
392	my ($self) = @_;
393
394	# if (my $rmp = $self->{random}) {
395	# # todo: be more intelligent about this
396	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
397	# } else {
398	$self->as_string
399	# }
400	}
401
402	# escape the /'s in the path
403	sub _escaped_path {
404	# ∕ is U+2215
405	(my $path = $_[0]{path}) =~ s/\//∕/g;
406	$path
407	}
408
409	# the original (read-only) location
410	sub load_path {
411	my ($self) = @_;
412
413	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
414	}
415
416	# the temporary/swap location
417	sub save_path {
418	my ($self) = @_;
419
420	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
421	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
422	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
423	}
424
425	# the unique path, might be eq to save_path
426	sub uniq_path {
427	my ($self) = @_;
428
429	$self->{user_rel} || $self->{random}
430	? undef
431	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
432	}
433
434	# return random map parameters, or undef
435	sub random_map_params {
436	my ($self) = @_;
437
438	$self->{random}
439	}
440
441	# this is somewhat ugly, but style maps do need special treatment
442	sub is_style_map {
443	$_[0]{path} =~ m{^/styles/}
444	}
445
446	package cf;
447
448	#############################################################################
449
450	=head2 ATTACHABLE OBJECTS	829	=head2 ATTACHABLE OBJECTS
451		830
452	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
453	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")
454	to it. All such attachable objects support the following methods.	833	to it. All such attachable objects support the following methods.
455		834
456	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>
457	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
458	crossfire+).	837	Deliantra).
459		838
460	=over 4	839	=over 4
461		840
462	=item $attachable->attach ($attachment, key => $value...)	841	=item $attachable->attach ($attachment, key => $value...)
463		842
…		…
507	=item cf::CLASS::attachment $name, ...	886	=item cf::CLASS::attachment $name, ...
508		887
509	Register an attachment by C<$name> through which attachable objects of the	888	Register an attachment by C<$name> through which attachable objects of the
510	given CLASS can refer to this attachment.	889	given CLASS can refer to this attachment.
511		890
512	Some classes such as crossfire maps and objects can specify attachments	891	Some classes such as deliantra maps and objects can specify attachments
513	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.
514		893
515	These calls expect any number of the following handler/hook descriptions:	894	These calls expect any number of the following handler/hook descriptions:
516		895
517	=over 4	896	=over 4
…		…
577	our @CB_TYPE = (); # registry for type (cf-object class) based events	956	our @CB_TYPE = (); # registry for type (cf-object class) based events
578	our @CB_MAP = ();	957	our @CB_MAP = ();
579		958
580	my %attachment;	959	my %attachment;
581		960
		961	sub cf::attachable::thawer_merge {
		962	# simply override everything except _meta
		963	local $_[0]{_meta};
		964	%{$_[0]} = %{$_[1]};
		965	}
		966
582	sub _attach_cb($$$$) {	967	sub _attach_cb($$$$) {
583	my ($registry, $event, $prio, $cb) = @_;	968	my ($registry, $event, $prio, $cb) = @_;
584		969
585	use sort 'stable';	970	use sort 'stable';
586		971
…		…
620	$registry = $CB_TYPE[$object_type] ||= [];	1005	$registry = $CB_TYPE[$object_type] ||= [];
621		1006
622	} elsif ($type eq "subtype") {	1007	} elsif ($type eq "subtype") {
623	defined $object_type or Carp::croak "subtype specified without type";	1008	defined $object_type or Carp::croak "subtype specified without type";
624	my $object_subtype = shift @arg;	1009	my $object_subtype = shift @arg;
625	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1010	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
626		1011
627	} elsif ($type eq "package") {	1012	} elsif ($type eq "package") {
628	my $pkg = shift @arg;	1013	my $pkg = shift @arg;
629		1014
630	while (my ($name, $id) = each %cb_id) {	1015	while (my ($name, $id) = each %cb_id) {
…		…
635		1020
636	} elsif (exists $cb_id{$type}) {	1021	} elsif (exists $cb_id{$type}) {
637	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1022	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
638		1023
639	} elsif (ref $type) {	1024	} elsif (ref $type) {
640	warn "attaching objects not supported, ignoring.\n";	1025	error "attaching objects not supported, ignoring.\n";
641		1026
642	} else {	1027	} else {
643	shift @arg;	1028	shift @arg;
644	warn "attach argument '$type' not supported, ignoring.\n";	1029	error "attach argument '$type' not supported, ignoring.\n";
645	}	1030	}
646	}	1031	}
647	}	1032	}
648		1033
649	sub _object_attach {	1034	sub _object_attach {
…		…
659	_attach $registry, $klass, @attach;	1044	_attach $registry, $klass, @attach;
660	}	1045	}
661		1046
662	$obj->{$name} = \%arg;	1047	$obj->{$name} = \%arg;
663	} else {	1048	} else {
664	warn "object uses attachment '$name' that is not available, postponing.\n";	1049	info "object uses attachment '$name' which is not available, postponing.\n";
665	}	1050	}
666		1051
667	$obj->{_attachment}{$name} = undef;	1052	$obj->{_attachment}{$name} = undef;
668	}	1053	}
669		1054
…		…
671	if (ref $_[0]) {	1056	if (ref $_[0]) {
672	_object_attach @_;	1057	_object_attach @_;
673	} else {	1058	} else {
674	_attach shift->_attach_registry, @_;	1059	_attach shift->_attach_registry, @_;
675	}	1060	}
		1061	_recalc_want;
676	};	1062	};
677		1063
678	# all those should be optimised	1064	# all those should be optimised
679	sub cf::attachable::detach {	1065	sub cf::attachable::detach {
680	my ($obj, $name) = @_;	1066	my ($obj, $name) = @_;
…		…
683	delete $obj->{_attachment}{$name};	1069	delete $obj->{_attachment}{$name};
684	reattach ($obj);	1070	reattach ($obj);
685	} else {	1071	} else {
686	Carp::croak "cannot, currently, detach class attachments";	1072	Carp::croak "cannot, currently, detach class attachments";
687	}	1073	}
		1074	_recalc_want;
688	};	1075	};
689		1076
690	sub cf::attachable::attached {	1077	sub cf::attachable::attached {
691	my ($obj, $name) = @_;	1078	my ($obj, $name) = @_;
692		1079
…		…
707	";	1094	";
708	die if $@;	1095	die if $@;
709	}	1096	}
710		1097
711	our $override;	1098	our $override;
712	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?
713		1100
714	sub override {	1101	sub override {
715	$override = 1;	1102	$override = 1;
716	@invoke_results = ();	1103	@INVOKE_RESULTS = (@_);
717	}	1104	}
718		1105
719	sub do_invoke {	1106	sub do_invoke {
720	my $event = shift;	1107	my $event = shift;
721	my $callbacks = shift;	1108	my $callbacks = shift;
722		1109
723	@invoke_results = ();	1110	@INVOKE_RESULTS = ();
724		1111
725	local $override;	1112	local $override;
726		1113
727	for (@$callbacks) {	1114	for (@$callbacks) {
728	eval { &{$_->[1]} };	1115	eval { &{$_->[1]} };
729		1116
730	if ($@) {	1117	if ($@) {
731	warn "$@";
732	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1118	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
733	override;	1119	override;
734	}	1120	}
735		1121
736	return 1 if $override;	1122	return 1 if $override;
737	}	1123	}
738		1124
739	0	1125	0
740	}	1126	}
741		1127
742	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1128	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
743		1129
744	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1130	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
745		1131
746	Generate an object-specific event with the given arguments.	1132	Generate an object-specific event with the given arguments.
747		1133
748	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
749	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
750	results (if you must, access C<@cf::invoke_results> directly).	1136	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
751		1137
752	=back	1138	=back
753		1139
754	=cut	1140	=cut
755		1141
756	#############################################################################	1142	#############################################################################
757	# 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	}
758		1186
759	sub reattach {	1187	sub reattach {
760	# basically do the same as instantiate, without calling instantiate	1188	# basically do the same as instantiate, without calling instantiate
761	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
762		1193
763	my $registry = $obj->registry;	1194	my $registry = $obj->registry;
764		1195
765	@$registry = ();	1196	@$registry = ();
766		1197
…		…
771	for (@$attach) {	1202	for (@$attach) {
772	my ($klass, @attach) = @$_;	1203	my ($klass, @attach) = @$_;
773	_attach $registry, $klass, @attach;	1204	_attach $registry, $klass, @attach;
774	}	1205	}
775	} else {	1206	} else {
776	warn "object uses attachment '$name' that is not available, postponing.\n";	1207	info "object uses attachment '$name' that is not available, postponing.\n";
777	}	1208	}
778	}	1209	}
779	}	1210	}
780		1211
781	cf::attachable->attach (	1212	cf::attachable->attach (
782	prio => -1000000,	1213	prio => -1000000,
783	on_instantiate => sub {	1214	on_instantiate => sub {
784	my ($obj, $data) = @_;	1215	my ($obj, $data) = @_;
785		1216
786	$data = from_json $data;	1217	$data = decode_json $data;
787		1218
788	for (@$data) {	1219	for (@$data) {
789	my ($name, $args) = @$_;	1220	my ($name, $args) = @$_;
790		1221
791	$obj->attach ($name, %{$args || {} });	1222	$obj->attach ($name, %{$args || {} });
…		…
807	sub object_freezer_save {	1238	sub object_freezer_save {
808	my ($filename, $rdata, $objs) = @_;	1239	my ($filename, $rdata, $objs) = @_;
809		1240
810	sync_job {	1241	sync_job {
811	if (length $$rdata) {	1242	if (length $$rdata) {
		1243	utf8::decode (my $decname = $filename);
812	warn sprintf "saving %s (%d,%d)\n",	1244	trace sprintf "saving %s (%d,%d)\n",
813	$filename, length $$rdata, scalar @$objs;	1245	$decname, length $$rdata, scalar @$objs
		1246	if $VERBOSE_IO;
814		1247
815	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1248	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
816	chmod SAVE_MODE, $fh;	1249	aio_chmod $fh, SAVE_MODE;
817	aio_write $fh, 0, (length $$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;
818	aio_fsync $fh;	1253	aio_fsync $fh;
		1254	}
819	close $fh;	1255	aio_close $fh;
820		1256
821	if (@$objs) {	1257	if (@$objs) {
822	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) {
823	chmod SAVE_MODE, $fh;	1259	aio_chmod $fh, SAVE_MODE;
824	my $data = Storable::nfreeze { version => 1, objs => $objs };	1260	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
825	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;
826	aio_fsync $fh;	1264	aio_fsync $fh;
		1265	}
827	close $fh;	1266	aio_close $fh;
828	aio_rename "$filename.pst~", "$filename.pst";	1267	aio_rename "$filename.pst~", "$filename.pst";
829	}	1268	}
830	} else {	1269	} else {
831	aio_unlink "$filename.pst";	1270	aio_unlink "$filename.pst";
832	}	1271	}
833		1272
834	aio_rename "$filename~", $filename;	1273	aio_rename "$filename~", $filename;
		1274
		1275	$filename =~ s%/[^/]+$%%;
		1276	aio_pathsync $filename if $cf::USE_FSYNC;
835	} else {	1277	} else {
836	warn "FATAL: $filename~: $!\n";	1278	error "unable to save objects: $filename~: $!\n";
837	}	1279	}
838	} else {	1280	} else {
839	aio_unlink $filename;	1281	aio_unlink $filename;
840	aio_unlink "$filename.pst";	1282	aio_unlink "$filename.pst";
841	}	1283	}
842	}	1284	};
843	}	1285	}
844		1286
845	sub object_freezer_as_string {	1287	sub object_freezer_as_string {
846	my ($rdata, $objs) = @_;	1288	my ($rdata, $objs) = @_;
847		1289
…		…
859	or return;	1301	or return;
860		1302
861	unless (aio_stat "$filename.pst") {	1303	unless (aio_stat "$filename.pst") {
862	(aio_load "$filename.pst", $av) >= 0	1304	(aio_load "$filename.pst", $av) >= 0
863	or return;	1305	or return;
		1306
864	$av = eval { (Storable::thaw $av)->{objs} };	1307	my $st = eval { Coro::Storable::thaw $av };
		1308	$av = $st->{objs};
865	}	1309	}
866		1310
		1311	utf8::decode (my $decname = $filename);
867	warn sprintf "loading %s (%d)\n",	1312	trace sprintf "loading %s (%d,%d)\n",
868	$filename, length $data, scalar @{$av || []};#d#	1313	$decname, length $data, scalar @{$av || []}
		1314	if $VERBOSE_IO;
		1315
869	return ($data, $av);	1316	($data, $av)
870	}	1317	}
		1318
		1319	=head2 COMMAND CALLBACKS
		1320
		1321	=over 4
		1322
		1323	=cut
871		1324
872	#############################################################################	1325	#############################################################################
873	# command handling &c	1326	# command handling &c
874		1327
875	=item cf::register_command $name => \&callback($ob,$args);	1328	=item cf::register_command $name => \&callback($ob,$args);
…		…
888	push @{ $COMMAND{$name} }, [$caller, $cb];	1341	push @{ $COMMAND{$name} }, [$caller, $cb];
889	}	1342	}
890		1343
891	=item cf::register_extcmd $name => \&callback($pl,$packet);	1344	=item cf::register_extcmd $name => \&callback($pl,$packet);
892		1345
893	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.
894		1351
895	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
896	called.	1353	called.
897		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
898	=cut	1366	=cut
899		1367
900	sub register_extcmd {	1368	sub register_extcmd {
901	my ($name, $cb) = @_;	1369	my ($name, $cb) = @_;
902		1370
903	my $caller = caller;
904	#warn "registering extcmd '$name' to '$caller'";
905
906	$EXTCMD{$name} = [$cb, $caller];	1371	$EXTCMD{$name} = $cb;
907	}	1372	}
		1373
		1374	sub register_exticmd {
		1375	my ($name, $cb) = @_;
		1376
		1377	$EXTICMD{$name} = $cb;
		1378	}
		1379
		1380	use File::Glob ();
908		1381
909	cf::player->attach (	1382	cf::player->attach (
910	on_command => sub {	1383	on_unknown_command => sub {
911	my ($pl, $name, $params) = @_;	1384	my ($pl, $name, $params) = @_;
912		1385
913	my $cb = $COMMAND{$name}	1386	my $cb = $COMMAND{$name}
914	or return;	1387	or return;
915		1388
…		…
920	cf::override;	1393	cf::override;
921	},	1394	},
922	on_extcmd => sub {	1395	on_extcmd => sub {
923	my ($pl, $buf) = @_;	1396	my ($pl, $buf) = @_;
924		1397
925	my $msg = eval { from_json $buf };	1398	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
926		1399
927	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
928	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1408	if (my $cb = $EXTCMD{$type}) {
929	if (my %reply = $cb->[0]->($pl, $msg)) {	1409	@reply = $cb->($pl, @payload);
930	$pl->ext_reply ($msg->{msgid}, %reply);
931	}
932	}	1410	}
		1411
		1412	$pl->ext_reply ($reply, @reply)
		1413	if $reply;
		1414
933	} else {	1415	} else {
934	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1416	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
935	}	1417	}
936		1418
937	cf::override;	1419	cf::override;
938	},	1420	},
939	);	1421	);
940		1422
941	sub register {	1423	# "readahead" all extensions
942	my ($base, $pkg) = @_;
943
944	#TODO
945	}
946
947	sub load_extension {	1424	sub cache_extensions {
948	my ($path) = @_;	1425	my $grp = IO::AIO::aio_group;
949		1426
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1427	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
951	my $base = $1;	1428	for (grep /\.ext$/, @{$_[0]}) {
952	my $pkg = $1;	1429	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955
956	warn "loading '$path' into '$pkg'\n";
957
958	open my $fh, "<:utf8", $path
959	or die "$path: $!";
960
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	eval $source
968	or die $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970
971	push @exts, $pkg;
972	$ext_pkg{$base} = $pkg;
973
974	# no strict 'refs';
975	# @{"$pkg\::ISA"} = ext::;
976
977	register $base, $pkg;
978	}
979
980	sub unload_extension {
981	my ($pkg) = @_;
982
983	warn "removing extension $pkg\n";
984
985	# remove hooks
986	#TODO
987	# for my $idx (0 .. $#PLUGIN_EVENT) {
988	# delete $hook[$idx]{$pkg};
989	# }
990
991	# remove commands
992	for my $name (keys %COMMAND) {
993	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
994
995	if (@cb) {
996	$COMMAND{$name} = \@cb;
997	} else {
998	delete $COMMAND{$name};
999	}	1430	}
1000	}	1431	};
1001		1432
1002	# remove extcmds	1433	$grp
1003	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1004	delete $EXTCMD{$name};
1005	}
1006
1007	if (my $cb = $pkg->can ("unload")) {
1008	eval {
1009	$cb->($pkg);
1010	1
1011	} or warn "$pkg unloaded, but with errors: $@";
1012	}
1013
1014	Symbol::delete_package $pkg;
1015	}	1434	}
1016		1435
1017	sub load_extensions {	1436	sub load_extensions {
		1437	info "loading extensions...";
		1438
		1439	cf::sync_job {
		1440	my %todo;
		1441
1018	for my $ext (<$LIBDIR/*.ext>) {	1442	for my $path (<$LIBDIR/*.ext>) {
1019	next unless -r $ext;	1443	next unless -r $path;
1020	eval {	1444
1021	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	}
1022	1	1508	}
1023	} 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	}
1024	}	1519	};
1025	}	1520	}
1026		1521
1027	#############################################################################	1522	#############################################################################
1028	# load/save/clean perl data associated with a map
1029		1523
1030	*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($) {
1031	my ($map) = @_;	1578	my ($login) = @_;
1032		1579
1033	my $path = $map->tmpname;	1580	$cf::PLAYER{$login}
1034	defined $path or return;	1581	or !aio_stat path $login
1035
1036	unlink "$path.pst";
1037	};
1038
1039	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1040
1041	#############################################################################
1042	# load/save perl data associated with player->ob objects
1043
1044	sub all_objects(@) {
1045	@_, map all_objects ($_->inv), @_
1046	}	1582	}
1047		1583
1048	# 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
1049	cf::player->attach (	1611	cf::player->attach (
1050	on_load => sub {	1612	on_load => sub {
1051	my ($pl, $path) = @_;	1613	my ($pl, $path) = @_;
1052		1614
1053	for my $o (all_objects $pl->ob) {	1615	# restore slots saved in save, below
1054	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1616	my $slots = delete $pl->{_slots};
1055	$o->set_ob_key_value ("_perl_data");
1056		1617
1057	%$o = %{ Storable::thaw pack "H*", $value };	1618	$pl->ob->current_weapon ($slots->[0]);
1058	}	1619	$pl->combat_ob ($slots->[1]);
1059	}	1620	$pl->ranged_ob ($slots->[2]);
1060	},	1621	},
1061	);	1622	);
1062		1623
1063	#############################################################################	1624	sub save($) {
		1625	my ($pl) = @_;
1064		1626
1065	=head2 CORE EXTENSIONS	1627	return if $pl->{deny_save};
1066		1628
1067	Functions and methods that extend core crossfire objects.	1629	my $path = path $pl;
		1630	my $guard = cf::lock_acquire "user_save:$path";
1068		1631
1069	=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($$@) {
		1805	my ($self, $type, @msg) = @_;
		1806
		1807	$self->ns->ext_msg ($type, @msg);
		1808	}
		1809
		1810	=head3 cf::region
1070		1811
1071	=over 4	1812	=over 4
1072		1813
1073	=item cf::player::exists $login
1074
1075	Returns true when the given account exists.
1076
1077	=cut	1814	=cut
1078		1815
1079	sub cf::player::exists($) {	1816	package cf::region;
1080	cf::player::find $_[0]
1081	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1082	}
1083		1817
1084	=item $player->ext_reply ($msgid, $msgtype, %msg)	1818	=item cf::region::find_by_path $path
1085		1819
1086	Sends an ext reply to the player.	1820	Tries to decuce the likely region for a map knowing only its path.
1087		1821
1088	=cut	1822	=cut
1089		1823
1090	sub cf::player::ext_reply($$$%) {	1824	sub find_by_path($) {
1091	my ($self, $id, %msg) = @_;	1825	my ($path) = @_;
1092		1826
1093	$msg{msgid} = $id;	1827	$path =~ s/^~[^\/]*//; # skip ~login
1094		1828
1095	$self->send ("ext " . to_json \%msg);	1829	my ($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
1096	}	1839	}
1097		1840
1098	=back	1841	=back
1099
1100		1842
1101	=head3 cf::map	1843	=head3 cf::map
1102		1844
1103	=over 4	1845	=over 4
1104		1846
…		…
1107	package cf::map;	1849	package cf::map;
1108		1850
1109	use Fcntl;	1851	use Fcntl;
1110	use Coro::AIO;	1852	use Coro::AIO;
1111		1853
		1854	use overload
		1855	'""' => \&as_string,
		1856	fallback => 1;
		1857
1112	our $MAX_RESET = 3600;	1858	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1859	our $DEFAULT_RESET = 3000;
1114		1860
1115	sub generate_random_map {	1861	sub generate_random_map {
1116	my ($path, $rmp) = @_;	1862	my ($self, $rmp) = @_;
		1863
		1864	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1117		1865
1118	# mit "rum" bekleckern, nicht	1866	# mit "rum" bekleckern, nicht
1119	cf::map::_create_random_map	1867	$self->_create_random_map (
1120	$path,
1121	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1868	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1122	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1869	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1123	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1870	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1124	$rmp->{exit_on_final_map},	1871	$rmp->{exit_on_final_map},
1125	$rmp->{xsize}, $rmp->{ysize},	1872	$rmp->{xsize}, $rmp->{ysize},
1126	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1873	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1127	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1874	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1128	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1875	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1129	$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},
1130	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1877	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1131	(cf::region::find $rmp->{region})	1878	(cf::region::find $rmp->{region}), $rmp->{custom}
		1879	)
1132	}	1880	}
1133		1881
1134	# and all this just because we cannot iterate over	1882	=item cf::map->register ($regex, $prio)
1135	# all maps in C++...
1136	sub change_all_map_light {
1137	my ($change) = @_;
1138		1883
1139	$_->change_map_light ($change)	1884	Register a handler for the map path matching the given regex at the
1140	for grep $_->outdoor, values %cf::MAP;	1885	givne priority (higher is better, built-in handlers have priority 0, the
1141	}	1886	default).
1142		1887
1143	sub try_load_header($) {	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 {
1144	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) = @_;
1145		2025
1146	utf8::encode $path;	2026	utf8::encode $path;
1147	aio_open $path, O_RDONLY, 0	2027	my $f = new_from_file cf::object::thawer $path
1148	or return;	2028	or return;
1149		2029
1150	my $map = cf::map::new	2030	$self->_load_header ($f)
1151	or return;	2031	or return;
1152		2032
1153	# for better error messages only, will be overwritten	2033	local $MAP_LOADING{$self->{path}} = $self;
1154	$map->path ($path);	2034	$f->resolve_delayed_derefs;
1155		2035
1156	$map->load_header ($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
1157	or return;	2079	or return;
		2080	$self->prepare_orig;
		2081	}
1158		2082
1159	$map->{load_path} = $path;	2083	$self->{deny_reset} = 1
		2084	if $self->no_reset;
1160		2085
1161	$map	2086	$self->default_region (cf::region::find_by_path $self->{path})
		2087	unless $self->default_region;
		2088
		2089	1
1162	}	2090	}
1163		2091
1164	sub find;	2092	sub find;
1165	sub find {	2093	sub find {
1166	my ($path, $origin) = @_;	2094	my ($path, $origin) = @_;
1167		2095
1168	#warn "find<$path,$origin>\n";#d#	2096	cf::cede_to_tick;
1169		2097
1170	$path = new cf::path $path, $origin && $origin->path;	2098	$path = normalise $path, $origin && $origin->path;
1171	my $key = $path->as_string;
1172		2099
1173	cf::lock_wait "map_find:$key";	2100	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1174
1175	$cf::MAP{$key} || do {
1176	my $guard = cf::lock_acquire "map_find:$key";	2101	my $guard2 = cf::lock_acquire "map_find:$path";
1177		2102
1178	# do it the slow way	2103	$cf::MAP{$path} || do {
1179	my $map = try_load_header $path->save_path;	2104	my $map = new_from_path cf::map $path
1180
1181	Coro::cede;
1182
1183	if ($map) {
1184	$map->last_access ((delete $map->{last_access})
1185	|| $cf::RUNTIME); #d#
1186	# safety
1187	$map->{instantiate_time} = $cf::RUNTIME
1188	if $map->{instantiate_time} > $cf::RUNTIME;
1189	} else {
1190	if (my $rmp = $path->random_map_params) {
1191	$map = generate_random_map $key, $rmp;
1192	} else {
1193	$map = try_load_header $path->load_path;
1194	}
1195
1196	$map or return;	2105	or return;
1197		2106
1198	$map->{load_original} = 1;
1199	$map->{instantiate_time} = $cf::RUNTIME;
1200	$map->last_access ($cf::RUNTIME);
1201	$map->instantiate;
1202
1203	# per-player maps become, after loading, normal maps
1204	$map->per_player (0) if $path->{user_rel};
1205	}
1206
1207	$map->path ($key);
1208	$map->{path} = $path;
1209	$map->{last_save} = $cf::RUNTIME;	2107	$map->{last_save} = $cf::RUNTIME;
1210		2108
1211	Coro::cede;	2109	$map->load_header
		2110	or return;
1212		2111
1213	if ($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;
1214	$map->reset;	2117	$map->reset;
1215	undef $guard;
1216	$map = find $path	2118	return find $path;
1217	or return;
1218	}	2119	}
1219		2120
1220	$cf::MAP{$key} = $map	2121	$cf::MAP{$path} = $map
1221	}	2122	}
1222	}	2123	}
		2124
		2125	sub pre_load { }
		2126	#sub post_load { } # XS
1223		2127
1224	sub load {	2128	sub load {
1225	my ($self) = @_;	2129	my ($self) = @_;
1226		2130
		2131	local $self->{deny_reset} = 1; # loading can take a long time
		2132
1227	my $path = $self->{path};	2133	my $path = $self->{path};
		2134
		2135	{
1228	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2136	my $guard = cf::lock_acquire "map_data:$path";
1229		2137
		2138	return unless $self->valid;
1230	return if $self->in_memory != cf::MAP_SWAPPED;	2139	return unless $self->in_memory == cf::MAP_SWAPPED;
1231		2140
1232	$self->in_memory (cf::MAP_LOADING);	2141	$self->in_memory (cf::MAP_LOADING);
1233		2142
1234	$self->alloc;	2143	$self->alloc;
1235	$self->load_objects ($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)
1236	or return;	2151	or return;
1237		2152
1238	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2153	$self->post_load_original
1239	if delete $self->{load_original};	2154	if delete $self->{load_original};
1240		2155
1241	if (my $uniq = $path->uniq_path) {	2156	if (my $uniq = $self->uniq_path) {
1242	utf8::encode $uniq;	2157	utf8::encode $uniq;
1243	if (aio_open $uniq, O_RDONLY, 0) {	2158	unless (aio_stat $uniq) {
		2159	if (my $f = new_from_file cf::object::thawer $uniq) {
1244	$self->clear_unique_items;	2160	$self->clear_unique_items;
1245	$self->load_objects ($uniq, 0);	2161	$self->_load_objects ($f);
		2162	$f->resolve_delayed_derefs;
		2163	}
1246	}	2164	}
1247	}	2165	}
1248		2166
1249	Coro::cede;	2167	$f->resolve_delayed_derefs;
1250		2168
		2169	cf::cede_to_tick;
1251	# now do the right thing for maps	2170	# now do the right thing for maps
1252	$self->link_multipart_objects;	2171	$self->link_multipart_objects;
1253
1254	if ($self->{path}->is_style_map) {
1255	$self->{deny_save} = 1;
1256	$self->{deny_reset} = 1;
1257	} else {
1258	$self->fix_auto_apply;
1259	$self->decay_objects;
1260	$self->update_buttons;
1261	$self->set_darkness_map;
1262	$self->difficulty ($self->estimate_difficulty)	2172	$self->difficulty ($self->estimate_difficulty)
1263	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;
1264	$self->activate;	2181	$self->activate;
1265	}	2182	}
1266		2183
1267	Coro::cede;	2184	$self->{last_save} = $cf::RUNTIME;
		2185	$self->last_access ($cf::RUNTIME);
1268		2186
1269	$self->in_memory (cf::MAP_IN_MEMORY);	2187	$self->in_memory (cf::MAP_ACTIVE);
		2188	}
		2189
		2190	$self->post_load;
		2191	}
		2192
		2193	# customize the map for a given player, i.e.
		2194	# return the _real_ map. used by e.g. per-player
		2195	# maps to change the path to ~playername/mappath
		2196	sub customise_for {
		2197	my ($self, $ob) = @_;
		2198
		2199	return find "~" . $ob->name . "/" . $self->{path}
		2200	if $self->per_player;
		2201
		2202	# return find "?party/" . $ob->name . "/" . $self->{path}
		2203	# if $self->per_party;
		2204
		2205	$self
		2206	}
		2207
		2208	# find and load all maps in the 3x3 area around a map
		2209	sub load_neighbours {
		2210	my ($map) = @_;
		2211
		2212	my @neigh; # diagonal neighbours
		2213
		2214	for (0 .. 3) {
		2215	my $neigh = $map->tile_path ($_)
		2216	or next;
		2217	$neigh = find $neigh, $map
		2218	or next;
		2219	$neigh->load;
		2220
		2221	# now find the diagonal neighbours
		2222	push @neigh,
		2223	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2224	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2225	}
		2226
		2227	for (grep defined $_->[0], @neigh) {
		2228	my ($path, $origin) = @$_;
		2229	my $neigh = find $path, $origin
		2230	or next;
		2231	$neigh->load;
		2232	}
1270	}	2233	}
1271		2234
1272	sub find_sync {	2235	sub find_sync {
1273	my ($path, $origin) = @_;	2236	my ($path, $origin) = @_;
1274		2237
1275	cf::sync_job {	2238	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
1276	my $map = cf::map::find $path, $origin;	2239	if $Coro::current == $Coro::main;
1277	$map	2240
1278	}	2241	find $path, $origin
1279	}	2242	}
1280		2243
1281	sub do_load_sync {	2244	sub do_load_sync {
1282	my ($map) = @_;	2245	my ($map) = @_;
1283		2246
1284	cf::sync_job { $map->load };	2247	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2248	if $Coro::current == $Coro::main;
		2249
		2250	$map->load;
		2251	}
		2252
		2253	our %MAP_PREFETCH;
		2254	our $MAP_PREFETCHER = undef;
		2255
		2256	sub find_async {
		2257	my ($path, $origin, $load) = @_;
		2258
		2259	$path = normalise $path, $origin && $origin->{path};
		2260
		2261	if (my $map = $cf::MAP{$path}) {
		2262	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2263	}
		2264
		2265	$MAP_PREFETCH{$path} |= $load;
		2266
		2267	$MAP_PREFETCHER ||= cf::async {
		2268	$Coro::current->{desc} = "map prefetcher";
		2269
		2270	while (%MAP_PREFETCH) {
		2271	while (my ($k, $v) = each %MAP_PREFETCH) {
		2272	if (my $map = find $k) {
		2273	$map->load if $v;
		2274	}
		2275
		2276	delete $MAP_PREFETCH{$k};
		2277	}
		2278	}
		2279	undef $MAP_PREFETCHER;
		2280	};
		2281	$MAP_PREFETCHER->prio (6);
		2282
		2283	()
		2284	}
		2285
		2286	# common code, used by both ->save and ->swapout
		2287	sub _save {
		2288	my ($self) = @_;
		2289
		2290	$self->{last_save} = $cf::RUNTIME;
		2291
		2292	return unless $self->dirty;
		2293
		2294	my $save = $self->save_path; utf8::encode $save;
		2295	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2296
		2297	$self->{load_path} = $save;
		2298
		2299	return if $self->{deny_save};
		2300
		2301	local $self->{last_access} = $self->last_access;#d#
		2302
		2303	cf::async {
		2304	$Coro::current->{desc} = "map player save";
		2305	$_->contr->save for $self->players;
		2306	};
		2307
		2308	cf::get_slot 0.02;
		2309
		2310	if ($uniq) {
		2311	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2312	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2313	} else {
		2314	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2315	}
1285	}	2316	}
1286		2317
1287	sub save {	2318	sub save {
1288	my ($self) = @_;	2319	my ($self) = @_;
1289		2320
1290	my $lock = cf::lock_acquire "map_data:" . $self->path;	2321	my $lock = cf::lock_acquire "map_data:$self->{path}";
1291		2322
1292	$self->{last_save} = $cf::RUNTIME;	2323	$self->_save;
1293
1294	return unless $self->dirty;
1295
1296	my $save = $self->{path}->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1298
1299	$self->{load_path} = $save;
1300
1301	return if $self->{deny_save};
1302
1303	local $self->{last_access} = $self->last_access;#d#
1304
1305	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}
1311	}	2324	}
1312		2325
1313	sub swap_out {	2326	sub swap_out {
1314	my ($self) = @_;	2327	my ($self) = @_;
1315		2328
1316	# save first because save cedes
1317	$self->save;
1318
1319	my $lock = cf::lock_acquire "map_data:" . $self->path;	2329	my $lock = cf::lock_acquire "map_data:$self->{path}";
1320		2330
		2331	return if $self->in_memory != cf::MAP_ACTIVE;
		2332	return if $self->{deny_save};
1321	return if $self->players;	2333	return if $self->players;
1322	return if $self->in_memory != cf::MAP_IN_MEMORY;
1323	return if $self->{deny_save};
1324		2334
		2335	# first deactivate the map and "unlink" it from the core
		2336	$self->deactivate;
		2337	$_->clear_links_to ($self) for values %cf::MAP;
		2338	$self->in_memory (cf::MAP_SWAPPED);
		2339
		2340	# then atomically save
		2341	$self->_save;
		2342
		2343	# then free the map
1325	$self->clear;	2344	$self->clear;
1326	$self->in_memory (cf::MAP_SWAPPED);
1327	}	2345	}
1328		2346
1329	sub reset_at {	2347	sub reset_at {
1330	my ($self) = @_;	2348	my ($self) = @_;
1331		2349
1332	# TODO: safety, remove and allow resettable per-player maps	2350	# TODO: safety, remove and allow resettable per-player maps
1333	return 1e99 if $self->{path}{user_rel};
1334	return 1e99 if $self->{deny_reset};	2351	return 1e99 if $self->{deny_reset};
1335		2352
1336	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2353	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1337	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2354	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1338		2355
…		…
1343	my ($self) = @_;	2360	my ($self) = @_;
1344		2361
1345	$self->reset_at <= $cf::RUNTIME	2362	$self->reset_at <= $cf::RUNTIME
1346	}	2363	}
1347		2364
1348	sub unlink_save {
1349	my ($self) = @_;
1350
1351	utf8::encode (my $save = $self->{path}->save_path);
1352	aioreq_pri 3; IO::AIO::aio_unlink $save;
1353	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1354	}
1355
1356	sub rename {
1357	my ($self, $new_path) = @_;
1358
1359	$self->unlink_save;
1360
1361	delete $cf::MAP{$self->path};
1362	$self->{path} = new cf::path $new_path;
1363	$self->path ($self->{path}->as_string);
1364	$cf::MAP{$self->path} = $self;
1365
1366	$self->save;
1367	}
1368
1369	sub reset {	2365	sub reset {
1370	my ($self) = @_;	2366	my ($self) = @_;
1371		2367
1372	my $lock = cf::lock_acquire "map_data:" . $self->path;	2368	my $lock = cf::lock_acquire "map_data:$self->{path}";
1373		2369
1374	return if $self->players;	2370	return if $self->players;
1375	return if $self->{path}{user_rel};#d#
1376		2371
1377	warn "resetting map ", $self->path;#d#	2372	cf::trace "resetting map ", $self->path, "\n";
		2373
		2374	$self->in_memory (cf::MAP_SWAPPED);
		2375
		2376	# need to save uniques path
		2377	unless ($self->{deny_save}) {
		2378	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2379
		2380	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2381	if $uniq;
		2382	}
1378		2383
1379	delete $cf::MAP{$self->path};	2384	delete $cf::MAP{$self->path};
1380		2385
		2386	$self->deactivate;
1381	$_->clear_links_to ($self) for values %cf::MAP;	2387	$_->clear_links_to ($self) for values %cf::MAP;
		2388	$self->clear;
1382		2389
1383	$self->unlink_save;	2390	$self->unlink_save;
1384	$self->destroy;	2391	$self->destroy;
1385	}	2392	}
1386		2393
1387	my $nuke_counter = "aaaa";	2394	my $nuke_counter = "aaaa";
1388		2395
1389	sub nuke {	2396	sub nuke {
1390	my ($self) = @_;	2397	my ($self) = @_;
1391		2398
		2399	{
		2400	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2401
		2402	delete $cf::MAP{$self->path};
		2403
		2404	$self->unlink_save;
		2405
		2406	bless $self, "cf::map::wrap";
		2407	delete $self->{deny_reset};
1392	$self->{deny_save} = 1;	2408	$self->{deny_save} = 1;
1393	$self->reset_timeout (1);	2409	$self->reset_timeout (1);
1394	$self->rename ("{nuke}/" . ($nuke_counter++));	2410	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2411
		2412	$cf::MAP{$self->path} = $self;
		2413	}
		2414
1395	$self->reset; # polite request, might not happen	2415	$self->reset; # polite request, might not happen
1396	}	2416	}
1397		2417
1398	sub customise_for {	2418	=item $maps = cf::map::tmp_maps
1399	my ($map, $ob) = @_;
1400		2419
1401	if ($map->per_player) {	2420	Returns an arrayref with all map paths of currently instantiated and saved
1402	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2421	maps. May block.
		2422
		2423	=cut
		2424
		2425	sub tmp_maps() {
1403	}	2426	[
1404		2427	map {
1405	$map	2428	utf8::decode $_;
		2429	/\.map$/
		2430	? normalise $_
		2431	: ()
		2432	} @{ aio_readdir $TMPDIR or [] }
		2433	]
1406	}	2434	}
1407		2435
1408	sub emergency_save {	2436	=item $maps = cf::map::random_maps
1409	my $freeze_guard = cf::freeze_mainloop;
1410		2437
1411	warn "enter emergency map save\n";	2438	Returns an arrayref with all map paths of currently instantiated and saved
		2439	random maps. May block.
1412		2440
1413	cf::sync_job {	2441	=cut
1414	warn "begin emergency map save\n";	2442
1415	$_->save for values %cf::MAP;	2443	sub random_maps() {
		2444	[
		2445	map {
		2446	utf8::decode $_;
		2447	/\.map$/
		2448	? normalise "?random/$_"
		2449	: ()
		2450	} @{ aio_readdir $RANDOMDIR or [] }
		2451	]
		2452	}
		2453
		2454	=item cf::map::unique_maps
		2455
		2456	Returns an arrayref of paths of all shared maps that have
		2457	instantiated unique items. May block.
		2458
		2459	=cut
		2460
		2461	sub unique_maps() {
		2462	[
		2463	map {
		2464	utf8::decode $_;
		2465	s/\.map$//; # TODO future compatibility hack
		2466	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2467	? ()
		2468	: normalise $_
		2469	} @{ aio_readdir $UNIQUEDIR or [] }
		2470	]
		2471	}
		2472
		2473	=item cf::map::static_maps
		2474
		2475	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2476	file in the shared directory excluding F</styles> and F</editor>). May
		2477	block.
		2478
		2479	=cut
		2480
		2481	sub static_maps() {
		2482	my @dirs = "";
		2483	my @maps;
		2484
		2485	while (@dirs) {
		2486	my $dir = shift @dirs;
		2487
		2488	next if $dir eq "/styles" || $dir eq "/editor";
		2489
		2490	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2491	or return;
		2492
		2493	for (@$files) {
		2494	s/\.map$// or next;
		2495	utf8::decode $_;
		2496	push @maps, "$dir/$_";
		2497	}
		2498
		2499	push @dirs, map "$dir/$_", @$dirs;
1416	};	2500	}
1417		2501
1418	warn "end emergency map save\n";	2502	\@maps
		2503	}
		2504
		2505	=back
		2506
		2507	=head3 cf::object
		2508
		2509	=cut
		2510
		2511	package cf::object;
		2512
		2513	=over 4
		2514
		2515	=item $ob->inv_recursive
		2516
		2517	Returns the inventory of the object I<and> their inventories, recursively,
		2518	but I<not> the object itself.
		2519
		2520	=cut
		2521
		2522	sub inv_recursive_;
		2523	sub inv_recursive_ {
		2524	map { $_, inv_recursive_ $_->inv } @_
		2525	}
		2526
		2527	sub inv_recursive {
		2528	inv_recursive_ inv $_[0]
		2529	}
		2530
		2531	=item $ref = $ob->ref
		2532
		2533	Creates and returns a persistent reference to an object that can be stored as a string.
		2534
		2535	=item $ob = cf::object::deref ($refstring)
		2536
		2537	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2538	even if the object actually exists. May block.
		2539
		2540	=cut
		2541
		2542	sub deref {
		2543	my ($ref) = @_;
		2544
		2545	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2546	my ($uuid, $name) = ($1, $2);
		2547	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2548	or return;
		2549	$pl->ob->uuid eq $uuid
		2550	or return;
		2551
		2552	$pl->ob
		2553	} else {
		2554	warn "$ref: cannot resolve object reference\n";
		2555	undef
		2556	}
1419	}	2557	}
1420		2558
1421	package cf;	2559	package cf;
1422		2560
1423	=back	2561	=back
1424
1425		2562
1426	=head3 cf::object::player	2563	=head3 cf::object::player
1427		2564
1428	=over 4	2565	=over 4
1429		2566
…		…
1432	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2569	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1433	can be C<undef>. Does the right thing when the player is currently in a	2570	can be C<undef>. Does the right thing when the player is currently in a
1434	dialogue with the given NPC character.	2571	dialogue with the given NPC character.
1435		2572
1436	=cut	2573	=cut
		2574
		2575	our $SAY_CHANNEL = {
		2576	id => "say",
		2577	title => "Map",
		2578	reply => "say ",
		2579	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2580	};
		2581
		2582	our $CHAT_CHANNEL = {
		2583	id => "chat",
		2584	title => "Chat",
		2585	reply => "chat ",
		2586	tooltip => "Player chat and shouts, global to the server.",
		2587	};
1437		2588
1438	# rough implementation of a future "reply" method that works	2589	# rough implementation of a future "reply" method that works
1439	# with dialog boxes.	2590	# with dialog boxes.
1440	#TODO: the first argument must go, split into a $npc->reply_to ( method	2591	#TODO: the first argument must go, split into a $npc->reply_to ( method
1441	sub cf::object::player::reply($$$;$) {	2592	sub cf::object::player::reply($$$;$) {
…		…
1443		2594
1444	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2595	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1445		2596
1446	if ($self->{record_replies}) {	2597	if ($self->{record_replies}) {
1447	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2598	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2599
1448	} else {	2600	} else {
		2601	my $pl = $self->contr;
		2602
		2603	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2604	my $dialog = $pl->{npc_dialog};
		2605	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2606
		2607	} else {
1449	$msg = $npc->name . " says: $msg" if $npc;	2608	$msg = $npc->name . " says: $msg" if $npc;
1450	$self->message ($msg, $flags);	2609	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2610	}
1451	}	2611	}
		2612	}
		2613
		2614	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2615
		2616	=cut
		2617
		2618	sub cf::object::send_msg {
		2619	my $pl = shift->contr
		2620	or return;
		2621	$pl->send_msg (@_);
1452	}	2622	}
1453		2623
1454	=item $player_object->may ("access")	2624	=item $player_object->may ("access")
1455		2625
1456	Returns wether the given player is authorized to access resource "access"	2626	Returns wether the given player is authorized to access resource "access"
…		…
1469		2639
1470	=item $player_object->enter_link	2640	=item $player_object->enter_link
1471		2641
1472	Freezes the player and moves him/her to a special map (C<{link}>).	2642	Freezes the player and moves him/her to a special map (C<{link}>).
1473		2643
1474	The player should be reaosnably safe there for short amounts of time. You	2644	The player should be reasonably safe there for short amounts of time (e.g.
1475	I<MUST> call C<leave_link> as soon as possible, though.	2645	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2646	though, as the player cannot control the character while it is on the link
		2647	map.
		2648
		2649	Will never block.
1476		2650
1477	=item $player_object->leave_link ($map, $x, $y)	2651	=item $player_object->leave_link ($map, $x, $y)
1478		2652
1479	Moves the player out of the specila link map onto the given map. If the	2653	Moves the player out of the special C<{link}> map onto the specified
1480	map is not valid (or omitted), the player will be moved back to the	2654	map. If the map is not valid (or omitted), the player will be moved back
1481	location he/she was before the call to C<enter_link>, or, if that fails,	2655	to the location he/she was before the call to C<enter_link>, or, if that
1482	to the emergency map position.	2656	fails, to the emergency map position.
1483		2657
1484	Might block.	2658	Might block.
1485		2659
1486	=cut	2660	=cut
		2661
		2662	sub link_map {
		2663	unless ($LINK_MAP) {
		2664	$LINK_MAP = cf::map::find "{link}"
		2665	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2666	$LINK_MAP->load;
		2667	}
		2668
		2669	$LINK_MAP
		2670	}
1487		2671
1488	sub cf::object::player::enter_link {	2672	sub cf::object::player::enter_link {
1489	my ($self) = @_;	2673	my ($self) = @_;
1490		2674
1491	$self->deactivate_recursive;	2675	$self->deactivate_recursive;
1492		2676
1493	return if $self->map == $LINK_MAP;	2677	++$self->{_link_recursion};
		2678
		2679	return if UNIVERSAL::isa $self->map, "ext::map_link";
1494		2680
1495	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2681	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1496	if $self->map;	2682	if $self->map && $self->map->{path} ne "{link}";
1497		2683
1498	$self->enter_map ($LINK_MAP, 20, 20);	2684	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1499	}	2685	}
1500		2686
1501	sub cf::object::player::leave_link {	2687	sub cf::object::player::leave_link {
1502	my ($self, $map, $x, $y) = @_;	2688	my ($self, $map, $x, $y) = @_;
		2689
		2690	return unless $self->contr->active;
1503		2691
1504	my $link_pos = delete $self->{_link_pos};	2692	my $link_pos = delete $self->{_link_pos};
1505		2693
1506	unless ($map) {	2694	unless ($map) {
1507	# restore original map position	2695	# restore original map position
…		…
1518	($x, $y) = (-1, -1)	2706	($x, $y) = (-1, -1)
1519	unless (defined $x) && (defined $y);	2707	unless (defined $x) && (defined $y);
1520		2708
1521	# use -1 or undef as default coordinates, not 0, 0	2709	# use -1 or undef as default coordinates, not 0, 0
1522	($x, $y) = ($map->enter_x, $map->enter_y)	2710	($x, $y) = ($map->enter_x, $map->enter_y)
1523	if $x <=0 && $y <= 0;	2711	if $x <= 0 && $y <= 0;
1524		2712
1525	$map->load;	2713	$map->load;
		2714	$map->load_neighbours;
1526		2715
		2716	return unless $self->contr->active;
		2717
		2718	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2719	if ($self->enter_map ($map, $x, $y)) {
		2720	# entering was successful
		2721	delete $self->{_link_recursion};
		2722	# only activate afterwards, to support waiting in hooks
1527	$self->activate_recursive;	2723	$self->activate_recursive;
1528	$self->enter_map ($map, $x, $y);
1529	}
1530
1531	cf::player->attach (
1532	on_logout => sub {
1533	my ($pl) = @_;
1534
1535	# abort map switching before logout
1536	if ($pl->ob->{_link_pos}) {
1537	cf::sync_job {
1538	$pl->ob->leave_link
1539	};
1540	}
1541	},	2724	}
1542	on_login => sub {
1543	my ($pl) = @_;
1544		2725
1545	# try to abort aborted map switching on player login :)	2726	}
1546	# should happen only on crashes
1547	if ($pl->ob->{_link_pos}) {
1548		2727
1549	$pl->ob->enter_link;	2728	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1550	(Coro::async_pool {
1551	# we need this sleep as the login has a concurrent enter_exit running
1552	# and this sleep increases chances of the player not ending up in scorn
1553	Coro::Timer::sleep 1;
1554	$pl->ob->leave_link;
1555	})->prio (2);
1556	}
1557	},
1558	);
1559		2729
1560	=item $player_object->goto ($path, $x, $y)	2730	Moves the player to the given map-path and coordinates by first freezing
		2731	her, loading and preparing them map, calling the provided $check callback
		2732	that has to return the map if sucecssful, and then unfreezes the player on
		2733	the new (success) or old (failed) map position. In either case, $done will
		2734	be called at the end of this process.
1561		2735
		2736	Note that $check will be called with a potentially non-loaded map, so if
		2737	it needs a loaded map it has to call C<< ->load >>.
		2738
1562	=cut	2739	=cut
		2740
		2741	our $GOTOGEN;
1563		2742
1564	sub cf::object::player::goto {	2743	sub cf::object::player::goto {
1565	my ($self, $path, $x, $y) = @_;	2744	my ($self, $path, $x, $y, $check, $done) = @_;
		2745
		2746	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2747	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2748	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2749	($path, $x, $y) = @$EMERGENCY_POSITION;
		2750	}
		2751
		2752	# do generation counting so two concurrent goto's will be executed in-order
		2753	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1566		2754
1567	$self->enter_link;	2755	$self->enter_link;
1568		2756
1569	(Coro::async_pool {	2757	(async {
1570	$path = new cf::path $path;	2758	$Coro::current->{desc} = "player::goto $path $x $y";
1571		2759
1572	my $map = cf::map::find $path->as_string;	2760	# *tag paths override both path and x|y
		2761	if ($path =~ /^\*(.*)$/) {
		2762	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2763	my $ob = $obs[rand @obs];
		2764
		2765	# see if we actually can go there
		2766	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2767	$ob = $obs[rand @obs];
		2768	} else {
		2769	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2770	}
		2771	# else put us there anyways for now #d#
		2772
		2773	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2774	} else {
		2775	($path, $x, $y) = (undef, undef, undef);
		2776	}
		2777	}
		2778
		2779	my $map = eval {
		2780	my $map = defined $path ? cf::map::find $path : undef;
		2781
		2782	if ($map) {
1573	$map = $map->customise_for ($self) if $map;	2783	$map = $map->customise_for ($self);
1574		2784	$map = $check->($map, $x, $y, $self) if $check && $map;
1575	# warn "entering ", $map->path, " at ($x, $y)\n"	2785	} else {
1576	# if $map;
1577
1578	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2786	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2787	}
1579		2788
		2789	$map
		2790	};
		2791
		2792	if ($@) {
		2793	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2794	LOG llevError | logBacktrace, Carp::longmess $@;
		2795	}
		2796
		2797	if ($gen == $self->{_goto_generation}) {
		2798	delete $self->{_goto_generation};
1580	$self->leave_link ($map, $x, $y);	2799	$self->leave_link ($map, $x, $y);
		2800	}
		2801
		2802	$done->($self) if $done;
1581	})->prio (1);	2803	})->prio (1);
1582	}	2804	}
1583		2805
1584	=item $player_object->enter_exit ($exit_object)	2806	=item $player_object->enter_exit ($exit_object)
1585		2807
…		…
1587		2809
1588	sub parse_random_map_params {	2810	sub parse_random_map_params {
1589	my ($spec) = @_;	2811	my ($spec) = @_;
1590		2812
1591	my $rmp = { # defaults	2813	my $rmp = { # defaults
1592	xsize => 10,	2814	xsize => (cf::rndm 15, 40),
1593	ysize => 10,	2815	ysize => (cf::rndm 15, 40),
		2816	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2817	#layout => string,
1594	};	2818	};
1595		2819
1596	for (split /\n/, $spec) {	2820	for (split /\n/, $spec) {
1597	my ($k, $v) = split /\s+/, $_, 2;	2821	my ($k, $v) = split /\s+/, $_, 2;
1598		2822
…		…
1610	# that depends on the exit object	2834	# that depends on the exit object
1611		2835
1612	my $rmp = parse_random_map_params $exit->msg;	2836	my $rmp = parse_random_map_params $exit->msg;
1613		2837
1614	if ($exit->map) {	2838	if ($exit->map) {
1615	$rmp->{region} = $exit->map->region_name;	2839	$rmp->{region} = $exit->region->name;
1616	$rmp->{origin_map} = $exit->map->path;	2840	$rmp->{origin_map} = $exit->map->path;
1617	$rmp->{origin_x} = $exit->x;	2841	$rmp->{origin_x} = $exit->x;
1618	$rmp->{origin_y} = $exit->y;	2842	$rmp->{origin_y} = $exit->y;
		2843
		2844	$exit->map->touch;
1619	}	2845	}
1620		2846
1621	$rmp->{random_seed} ||= $exit->random_seed;	2847	$rmp->{random_seed} ||= $exit->random_seed;
1622		2848
1623	my $data = cf::to_json $rmp;	2849	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1624	my $md5 = Digest::MD5::md5_hex $data;	2850	my $md5 = Digest::MD5::md5_hex $data;
		2851	my $meta = "$RANDOMDIR/$md5.meta";
1625		2852
1626	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2853	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1627	aio_write $fh, 0, (length $data), $data, 0;	2854	aio_write $fh, 0, (length $data), $data, 0;
		2855	undef $fh;
		2856	aio_rename "$meta~", $meta;
1628		2857
		2858	my $slaying = "?random/$md5";
		2859
		2860	if ($exit->valid) {
1629	$exit->slaying ("?random/$md5");	2861	$exit->slaying ("?random/$md5");
1630	$exit->msg (undef);	2862	$exit->msg (undef);
		2863	}
1631	}	2864	}
1632	}	2865	}
1633		2866
1634	sub cf::object::player::enter_exit {	2867	sub cf::object::player::enter_exit {
1635	my ($self, $exit) = @_;	2868	my ($self, $exit) = @_;
1636		2869
1637	return unless $self->type == cf::PLAYER;	2870	return unless $self->type == cf::PLAYER;
1638		2871
1639	$self->enter_link;	2872	$self->enter_link;
1640		2873
1641	(Coro::async_pool {	2874	(async {
1642	$self->deactivate_recursive; # just to be sure	2875	$Coro::current->{desc} = "enter_exit";
		2876
1643	unless (eval {	2877	unless (eval {
		2878	$self->deactivate_recursive; # just to be sure
		2879
		2880	# random map handling
		2881	{
		2882	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2883
1644	prepare_random_map $exit	2884	prepare_random_map $exit
1645	if $exit->slaying eq "/!";	2885	if $exit->slaying eq "/!";
		2886	}
1646		2887
1647	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2888	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1648	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2889	my $x = $exit->stats->hp;
		2890	my $y = $exit->stats->sp;
1649		2891
		2892	$self->goto ($map, $x, $y);
		2893
		2894	# if exit is damned, update players death & WoR home-position
		2895	$self->contr->savebed ($map, $x, $y)
		2896	if $exit->flag (cf::FLAG_DAMNED);
		2897
1650	1;	2898	1
1651	}) {	2899	}) {
1652	$self->message ("Something went wrong deep within the crossfire server. "	2900	$self->message ("Something went wrong deep within the deliantra server. "
1653	. "I'll try to bring you back to the map you were before. "	2901	. "I'll try to bring you back to the map you were before. "
1654	. "Please report this to the dungeon master",	2902	. "Please report this to the dungeon master!",
1655	cf::NDI_UNIQUE | cf::NDI_RED);	2903	cf::NDI_UNIQUE | cf::NDI_RED);
1656		2904
1657	warn "ERROR in enter_exit: $@";	2905	error "ERROR in enter_exit: $@";
1658	$self->leave_link;	2906	$self->leave_link;
1659	}	2907	}
1660	})->prio (1);	2908	})->prio (1);
1661	}	2909	}
1662		2910
…		…
1673		2921
1674	sub cf::client::send_drawinfo {	2922	sub cf::client::send_drawinfo {
1675	my ($self, $text, $flags) = @_;	2923	my ($self, $text, $flags) = @_;
1676		2924
1677	utf8::encode $text;	2925	utf8::encode $text;
1678	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2926	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1679	}	2927	}
1680		2928
		2929	=item $client->send_big_packet ($pkt)
		2930
		2931	Like C<send_packet>, but tries to compress large packets, and fragments
		2932	them as required.
		2933
		2934	=cut
		2935
		2936	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2937
		2938	sub cf::client::send_big_packet {
		2939	my ($self, $pkt) = @_;
		2940
		2941	# try lzf for large packets
		2942	$pkt = "lzf " . Compress::LZF::compress $pkt
		2943	if 1024 <= length $pkt and $self->{can_lzf};
		2944
		2945	# split very large packets
		2946	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2947	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2948	$pkt = "frag";
		2949	}
		2950
		2951	$self->send_packet ($pkt);
		2952	}
		2953
		2954	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2955
		2956	Send a drawinfo or msg packet to the client, formatting the msg for the
		2957	client if neccessary. C<$type> should be a string identifying the type of
		2958	the message, with C<log> being the default. If C<$color> is negative, suppress
		2959	the message unless the client supports the msg packet.
		2960
		2961	=cut
		2962
		2963	# non-persistent channels (usually the info channel)
		2964	our %CHANNEL = (
		2965	"c/motd" => {
		2966	id => "infobox",
		2967	title => "MOTD",
		2968	reply => undef,
		2969	tooltip => "The message of the day",
		2970	},
		2971	"c/identify" => {
		2972	id => "infobox",
		2973	title => "Identify",
		2974	reply => undef,
		2975	tooltip => "Items recently identified",
		2976	},
		2977	"c/examine" => {
		2978	id => "infobox",
		2979	title => "Examine",
		2980	reply => undef,
		2981	tooltip => "Signs and other items you examined",
		2982	},
		2983	"c/shopinfo" => {
		2984	id => "infobox",
		2985	title => "Shop Info",
		2986	reply => undef,
		2987	tooltip => "What your bargaining skill tells you about the shop",
		2988	},
		2989	"c/book" => {
		2990	id => "infobox",
		2991	title => "Book",
		2992	reply => undef,
		2993	tooltip => "The contents of a note or book",
		2994	},
		2995	"c/lookat" => {
		2996	id => "infobox",
		2997	title => "Look",
		2998	reply => undef,
		2999	tooltip => "What you saw there",
		3000	},
		3001	"c/who" => {
		3002	id => "infobox",
		3003	title => "Players",
		3004	reply => undef,
		3005	tooltip => "Shows players who are currently online",
		3006	},
		3007	"c/body" => {
		3008	id => "infobox",
		3009	title => "Body Parts",
		3010	reply => undef,
		3011	tooltip => "Shows which body parts you posess and are available",
		3012	},
		3013	"c/statistics" => {
		3014	id => "infobox",
		3015	title => "Statistics",
		3016	reply => undef,
		3017	tooltip => "Shows your primary statistics",
		3018	},
		3019	"c/skills" => {
		3020	id => "infobox",
		3021	title => "Skills",
		3022	reply => undef,
		3023	tooltip => "Shows your experience per skill and item power",
		3024	},
		3025	"c/shopitems" => {
		3026	id => "infobox",
		3027	title => "Shop Items",
		3028	reply => undef,
		3029	tooltip => "Shows the items currently for sale in this shop",
		3030	},
		3031	"c/resistances" => {
		3032	id => "infobox",
		3033	title => "Resistances",
		3034	reply => undef,
		3035	tooltip => "Shows your resistances",
		3036	},
		3037	"c/pets" => {
		3038	id => "infobox",
		3039	title => "Pets",
		3040	reply => undef,
		3041	tooltip => "Shows information abotu your pets/a specific pet",
		3042	},
		3043	"c/perceiveself" => {
		3044	id => "infobox",
		3045	title => "Perceive Self",
		3046	reply => undef,
		3047	tooltip => "You gained detailed knowledge about yourself",
		3048	},
		3049	"c/uptime" => {
		3050	id => "infobox",
		3051	title => "Uptime",
		3052	reply => undef,
		3053	tooltip => "How long the server has been running since last restart",
		3054	},
		3055	"c/mapinfo" => {
		3056	id => "infobox",
		3057	title => "Map Info",
		3058	reply => undef,
		3059	tooltip => "Information related to the maps",
		3060	},
		3061	"c/party" => {
		3062	id => "party",
		3063	title => "Party",
		3064	reply => "gsay ",
		3065	tooltip => "Messages and chat related to your party",
		3066	},
		3067	"c/death" => {
		3068	id => "death",
		3069	title => "Death",
		3070	reply => undef,
		3071	tooltip => "Reason for and more info about your most recent death",
		3072	},
		3073	"c/say" => $SAY_CHANNEL,
		3074	"c/chat" => $CHAT_CHANNEL,
		3075	);
		3076
		3077	sub cf::client::send_msg {
		3078	my ($self, $channel, $msg, $color, @extra) = @_;
		3079
		3080	$msg = $self->pl->expand_cfpod ($msg)
		3081	unless $color & cf::NDI_VERBATIM;
		3082
		3083	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3084
		3085	# check predefined channels, for the benefit of C
		3086	if ($CHANNEL{$channel}) {
		3087	$channel = $CHANNEL{$channel};
		3088
		3089	$self->ext_msg (channel_info => $channel);
		3090	$channel = $channel->{id};
		3091
		3092	} elsif (ref $channel) {
		3093	# send meta info to client, if not yet sent
		3094	unless (exists $self->{channel}{$channel->{id}}) {
		3095	$self->{channel}{$channel->{id}} = $channel;
		3096	$self->ext_msg (channel_info => $channel);
		3097	}
		3098
		3099	$channel = $channel->{id};
		3100	}
		3101
		3102	return unless @extra || length $msg;
		3103
		3104	# default colour, mask it out
		3105	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3106	if $color & cf::NDI_DEF;
		3107
		3108	my $pkt = "msg "
		3109	. $self->{json_coder}->encode (
		3110	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3111	);
		3112
		3113	$self->send_big_packet ($pkt);
		3114	}
		3115
		3116	=item $client->ext_msg ($type, @msg)
		3117
		3118	Sends an ext event to the client.
		3119
		3120	=cut
		3121
		3122	sub cf::client::ext_msg($$@) {
		3123	my ($self, $type, @msg) = @_;
		3124
		3125	if ($self->extcmd == 2) {
		3126	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3127	} elsif ($self->extcmd == 1) { # TODO: remove
		3128	push @msg, msgtype => "event_$type";
		3129	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3130	}
		3131	}
		3132
		3133	=item $client->ext_reply ($msgid, @msg)
		3134
		3135	Sends an ext reply to the client.
		3136
		3137	=cut
		3138
		3139	sub cf::client::ext_reply($$@) {
		3140	my ($self, $id, @msg) = @_;
		3141
		3142	if ($self->extcmd == 2) {
		3143	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3144	} elsif ($self->extcmd == 1) {
		3145	#TODO: version 1, remove
		3146	unshift @msg, msgtype => "reply", msgid => $id;
		3147	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3148	}
		3149	}
1681		3150
1682	=item $success = $client->query ($flags, "text", \&cb)	3151	=item $success = $client->query ($flags, "text", \&cb)
1683		3152
1684	Queues a query to the client, calling the given callback with	3153	Queues a query to the client, calling the given callback with
1685	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3154	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1686	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3155	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1687		3156
1688	Queries can fail, so check the return code. Or don't, as queries will become	3157	Queries can fail, so check the return code. Or don't, as queries will
1689	reliable at some point in the future.	3158	become reliable at some point in the future.
1690		3159
1691	=cut	3160	=cut
1692		3161
1693	sub cf::client::query {	3162	sub cf::client::query {
1694	my ($self, $flags, $text, $cb) = @_;	3163	my ($self, $flags, $text, $cb) = @_;
…		…
1702	utf8::encode $text;	3171	utf8::encode $text;
1703	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3172	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1704		3173
1705	$self->send_packet ($self->{query_queue}[0][0])	3174	$self->send_packet ($self->{query_queue}[0][0])
1706	if @{ $self->{query_queue} } == 1;	3175	if @{ $self->{query_queue} } == 1;
		3176
		3177	1
1707	}	3178	}
1708		3179
1709	cf::client->attach (	3180	cf::client->attach (
		3181	on_connect => sub {
		3182	my ($ns) = @_;
		3183
		3184	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3185	},
1710	on_reply => sub {	3186	on_reply => sub {
1711	my ($ns, $msg) = @_;	3187	my ($ns, $msg) = @_;
1712		3188
1713	# this weird shuffling is so that direct followup queries	3189	# this weird shuffling is so that direct followup queries
1714	# get handled first	3190	# get handled first
1715	my $queue = delete $ns->{query_queue}	3191	my $queue = delete $ns->{query_queue}
1716	or return; # be conservative, not sure how that can happen, but we saw a crash here	3192	or return; # be conservative, not sure how that can happen, but we saw a crash here
1717		3193
1718	(shift @$queue)->[1]->($msg);	3194	(shift @$queue)->[1]->($msg);
		3195	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1719		3196
1720	push @{ $ns->{query_queue} }, @$queue;	3197	push @{ $ns->{query_queue} }, @$queue;
1721		3198
1722	if (@{ $ns->{query_queue} } == @$queue) {	3199	if (@{ $ns->{query_queue} } == @$queue) {
1723	if (@$queue) {	3200	if (@$queue) {
…		…
1725	} else {	3202	} else {
1726	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3203	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1727	}	3204	}
1728	}	3205	}
1729	},	3206	},
		3207	on_exticmd => sub {
		3208	my ($ns, $buf) = @_;
		3209
		3210	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3211
		3212	if (ref $msg) {
		3213	my ($type, $reply, @payload) =
		3214	"ARRAY" eq ref $msg
		3215	? @$msg
		3216	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3217
		3218	my @reply;
		3219
		3220	if (my $cb = $EXTICMD{$type}) {
		3221	@reply = $cb->($ns, @payload);
		3222	}
		3223
		3224	$ns->ext_reply ($reply, @reply)
		3225	if $reply;
		3226
		3227	} else {
		3228	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3229	}
		3230
		3231	cf::override;
		3232	},
1730	);	3233	);
1731		3234
1732	=item $client->coro (\&cb)	3235	=item $client->async (\&cb)
1733		3236
1734	Create a new coroutine, running the specified callback. The coroutine will	3237	Create a new coroutine, running the specified callback. The coroutine will
1735	be automatically cancelled when the client gets destroyed (e.g. on logout,	3238	be automatically cancelled when the client gets destroyed (e.g. on logout,
1736	or loss of connection).	3239	or loss of connection).
1737		3240
1738	=cut	3241	=cut
1739		3242
1740	sub cf::client::coro {	3243	sub cf::client::async {
1741	my ($self, $cb) = @_;	3244	my ($self, $cb) = @_;
1742		3245
1743	my $coro = &Coro::async_pool ($cb);	3246	my $coro = &Coro::async ($cb);
1744		3247
1745	$coro->on_destroy (sub {	3248	$coro->on_destroy (sub {
1746	delete $self->{_coro}{$coro+0};	3249	delete $self->{_coro}{$coro+0};
1747	});	3250	});
1748		3251
…		…
1750		3253
1751	$coro	3254	$coro
1752	}	3255	}
1753		3256
1754	cf::client->attach (	3257	cf::client->attach (
1755	on_destroy => sub {	3258	on_client_destroy => sub {
1756	my ($ns) = @_;	3259	my ($ns) = @_;
1757		3260
1758	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3261	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1759	},	3262	},
1760	);	3263	);
…		…
1775	our $safe = new Safe "safe";	3278	our $safe = new Safe "safe";
1776	our $safe_hole = new Safe::Hole;	3279	our $safe_hole = new Safe::Hole;
1777		3280
1778	$SIG{FPE} = 'IGNORE';	3281	$SIG{FPE} = 'IGNORE';
1779		3282
1780	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3283	$safe->permit_only (Opcode::opset qw(
		3284	:base_core :base_mem :base_orig :base_math :base_loop
		3285	grepstart grepwhile mapstart mapwhile
		3286	sort time
		3287	));
1781		3288
1782	# here we export the classes and methods available to script code	3289	# here we export the classes and methods available to script code
1783		3290
1784	=pod	3291	=pod
1785		3292
1786	The following fucntions and emthods are available within a safe environment:	3293	The following functions and methods are available within a safe environment:
1787		3294
1788	cf::object contr pay_amount pay_player map	3295	cf::object
		3296	contr pay_amount pay_player map x y force_find force_add destroy
		3297	insert remove name archname title slaying race decrease split
		3298	value
		3299
1789	cf::object::player player	3300	cf::object::player
1790	cf::player peaceful	3301	player
1791	cf::map trigger	3302
		3303	cf::player
		3304	peaceful
		3305
		3306	cf::map
		3307	trigger
1792		3308
1793	=cut	3309	=cut
1794		3310
1795	for (	3311	for (
1796	["cf::object" => qw(contr pay_amount pay_player map)],	3312	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3313	insert remove inv nrof name archname title slaying race
		3314	decrease split destroy change_exp value msg lore send_msg)],
1797	["cf::object::player" => qw(player)],	3315	["cf::object::player" => qw(player)],
1798	["cf::player" => qw(peaceful)],	3316	["cf::player" => qw(peaceful send_msg)],
1799	["cf::map" => qw(trigger)],	3317	["cf::map" => qw(trigger)],
1800	) {	3318	) {
1801	no strict 'refs';
1802	my ($pkg, @funs) = @$_;	3319	my ($pkg, @funs) = @$_;
1803	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3320	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1804	for @funs;	3321	for @funs;
1805	}	3322	}
1806		3323
…		…
1821		3338
1822	my $qcode = $code;	3339	my $qcode = $code;
1823	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3340	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1824	$qcode =~ s/\n/\\n/g;	3341	$qcode =~ s/\n/\\n/g;
1825		3342
		3343	%vars = (_dummy => 0) unless %vars;
		3344
		3345	my @res;
1826	local $_;	3346	local $_;
1827	local @safe::cf::_safe_eval_args = values %vars;
1828		3347
1829	my $eval =	3348	my $eval =
1830	"do {\n"	3349	"do {\n"
1831	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3350	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1832	. "#line 0 \"{$qcode}\"\n"	3351	. "#line 0 \"{$qcode}\"\n"
1833	. $code	3352	. $code
1834	. "\n}"	3353	. "\n}"
1835	;	3354	;
1836		3355
		3356	if ($CFG{safe_eval}) {
1837	sub_generation_inc;	3357	sub_generation_inc;
		3358	local @safe::cf::_safe_eval_args = values %vars;
1838	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3359	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1839	sub_generation_inc;	3360	sub_generation_inc;
		3361	} else {
		3362	local @cf::_safe_eval_args = values %vars;
		3363	@res = wantarray ? eval eval : scalar eval $eval;
		3364	}
1840		3365
1841	if ($@) {	3366	if ($@) {
1842	warn "$@";	3367	warn "$@",
1843	warn "while executing safe code '$code'\n";	3368	"while executing safe code '$code'\n",
1844	warn "with arguments " . (join " ", %vars) . "\n";	3369	"with arguments " . (join " ", %vars) . "\n";
1845	}	3370	}
1846		3371
1847	wantarray ? @res : $res[0]	3372	wantarray ? @res : $res[0]
1848	}	3373	}
1849		3374
…		…
1863	=cut	3388	=cut
1864		3389
1865	sub register_script_function {	3390	sub register_script_function {
1866	my ($fun, $cb) = @_;	3391	my ($fun, $cb) = @_;
1867		3392
1868	no strict 'refs';	3393	$fun = "safe::$fun" if $CFG{safe_eval};
1869	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3394	*$fun = $safe_hole->wrap ($cb);
1870	}	3395	}
1871		3396
1872	=back	3397	=back
1873		3398
1874	=cut	3399	=cut
1875		3400
1876	#############################################################################	3401	#############################################################################
		3402	# the server's init and main functions
1877		3403
1878	=head2 EXTENSION DATABASE SUPPORT	3404	sub load_facedata($) {
		3405	my ($path) = @_;
1879		3406
1880	Crossfire maintains a very simple database for extension use. It can	3407	# HACK to clear player env face cache, we need some signal framework
1881	currently store anything that can be serialised using Storable, which	3408	# for this (global event?)
1882	excludes objects.	3409	%ext::player_env::MUSIC_FACE_CACHE = ();
1883		3410
1884	The parameter C<$family> should best start with the name of the extension	3411	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1885	using it, it should be unique.
1886		3412
1887	=over 4	3413	trace "loading facedata from $path\n";
1888		3414
1889	=item $hashref = cf::db_get $family	3415	0 < aio_load $path, my $facedata
		3416	or die "$path: $!";
1890		3417
1891	Return a hashref for use by the extension C<$family>, which can be	3418	$facedata = Coro::Storable::thaw $facedata;
1892	modified. After modifications, you have to call C<cf::db_dirty> or
1893	C<cf::db_sync>.
1894		3419
1895	=item $value = cf::db_get $family => $key	3420	$facedata->{version} == 2
		3421	or cf::cleanup "$path: version mismatch, cannot proceed.";
1896		3422
1897	Returns a single value from the database	3423	# patch in the exptable
1898		3424	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1899	=item cf::db_put $family => $hashref	3425	$facedata->{resource}{"res/exp_table"} = {
1900		3426	type => FT_RSRC,
1901	Stores the given family hashref into the database. Updates are delayed, if	3427	data => $exp_table,
1902	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3428	hash => (Digest::MD5::md5 $exp_table),
1903
1904	=item cf::db_put $family => $key => $value
1905
1906	Stores the given C<$value> in the family hash. Updates are delayed, if you
1907	want the data to be synced to disk immediately, use C<cf::db_sync>.
1908
1909	=item cf::db_dirty
1910
1911	Marks the database as dirty, to be updated at a later time.
1912
1913	=item cf::db_sync
1914
1915	Immediately write the database to disk I<if it is dirty>.
1916
1917	=cut
1918
1919	our $DB;
1920
1921	{
1922	my $path = cf::localdir . "/database.pst";
1923
1924	sub db_load() {
1925	$DB = stat $path ? Storable::retrieve $path : { };
1926	}
1927
1928	my $pid;
1929
1930	sub db_save() {
1931	waitpid $pid, 0 if $pid;
1932	if (0 == ($pid = fork)) {
1933	$DB->{_meta}{version} = 1;
1934	Storable::nstore $DB, "$path~";
1935	rename "$path~", $path;
1936	cf::_exit 0 if defined $pid;
1937	}
1938	}
1939
1940	my $dirty;
1941
1942	sub db_sync() {
1943	db_save if $dirty;
1944	undef $dirty;
1945	}
1946
1947	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1948	db_sync;
1949	});	3429	};
		3430	cf::cede_to_tick;
1950		3431
1951	sub db_dirty() {
1952	$dirty = 1;
1953	$idle->start;
1954	}	3432	{
		3433	my $faces = $facedata->{faceinfo};
1955		3434
1956	sub db_get($;$) {	3435	while (my ($face, $info) = each %$faces) {
1957	@_ >= 2	3436	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1958	? $DB->{$_[0]}{$_[1]}
1959	: ($DB->{$_[0]} ||= { })
1960	}
1961		3437
1962	sub db_put($$;$) {	3438	cf::face::set_visibility $idx, $info->{visibility};
1963	if (@_ >= 3) {	3439	cf::face::set_magicmap $idx, $info->{magicmap};
1964	$DB->{$_[0]}{$_[1]} = $_[2];	3440	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1965	} else {	3441	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1966	$DB->{$_[0]} = $_[1];
1967	}
1968	db_dirty;
1969	}
1970		3442
1971	cf::global->attach (	3443	cf::cede_to_tick;
1972	prio => 10000,
1973	on_cleanup => sub {
1974	db_sync;
1975	},	3444	}
1976	);
1977	}
1978		3445
1979	#############################################################################	3446	while (my ($face, $info) = each %$faces) {
1980	# the server's main()	3447	next unless $info->{smooth};
1981		3448
1982	sub cfg_load {	3449	my $idx = cf::face::find $face
1983	open my $fh, "<:utf8", cf::confdir . "/config"	3450	or next;
1984	or return;
1985		3451
1986	local $/;	3452	if (my $smooth = cf::face::find $info->{smooth}) {
1987	*CFG = YAML::Syck::Load <$fh>;	3453	cf::face::set_smooth $idx, $smooth;
		3454	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3455	} else {
		3456	error "smooth face '$info->{smooth}' not found for face '$face'";
		3457	}
1988		3458
		3459	cf::cede_to_tick;
		3460	}
		3461	}
		3462
		3463	{
		3464	my $anims = $facedata->{animinfo};
		3465
		3466	while (my ($anim, $info) = each %$anims) {
		3467	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3468	cf::cede_to_tick;
		3469	}
		3470
		3471	cf::anim::invalidate_all; # d'oh
		3472	}
		3473
		3474	{
		3475	my $res = $facedata->{resource};
		3476
		3477	while (my ($name, $info) = each %$res) {
		3478	if (defined $info->{type}) {
		3479	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3480
		3481	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3482	cf::face::set_type $idx, $info->{type};
		3483	} else {
		3484	$RESOURCE{$name} = $info; # unused
		3485	}
		3486
		3487	cf::cede_to_tick;
		3488	}
		3489	}
		3490
		3491	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3492
		3493	1
		3494	}
		3495
		3496	register_exticmd fx_want => sub {
		3497	my ($ns, $want) = @_;
		3498
		3499	while (my ($k, $v) = each %$want) {
		3500	$ns->fx_want ($k, $v);
		3501	}
		3502	};
		3503
		3504	sub load_resource_file($) {
		3505	my $guard = lock_acquire "load_resource_file";
		3506
		3507	my $status = load_resource_file_ $_[0];
		3508	get_slot 0.1, 100;
		3509	cf::arch::commit_load;
		3510
		3511	$status
		3512	}
		3513
		3514	sub reload_regions {
		3515	# HACK to clear player env face cache, we need some signal framework
		3516	# for this (global event?)
		3517	%ext::player_env::MUSIC_FACE_CACHE = ();
		3518
		3519	load_resource_file "$MAPDIR/regions"
		3520	or die "unable to load regions file\n";
		3521
		3522	for (cf::region::list) {
		3523	$_->{match} = qr/$_->{match}/
		3524	if exists $_->{match};
		3525	}
		3526	}
		3527
		3528	sub reload_facedata {
		3529	load_facedata "$DATADIR/facedata"
		3530	or die "unable to load facedata\n";
		3531	}
		3532
		3533	sub reload_archetypes {
		3534	load_resource_file "$DATADIR/archetypes"
		3535	or die "unable to load archetypes\n";
		3536	}
		3537
		3538	sub reload_treasures {
		3539	load_resource_file "$DATADIR/treasures"
		3540	or die "unable to load treasurelists\n";
		3541	}
		3542
		3543	sub reload_sound {
		3544	trace "loading sound config from $DATADIR/sound\n";
		3545
		3546	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3547	or die "$DATADIR/sound $!";
		3548
		3549	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3550
		3551	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3552	my $sound = $soundconf->{compat}[$_]
		3553	or next;
		3554
		3555	my $face = cf::face::find "sound/$sound->[1]";
		3556	cf::sound::set $sound->[0] => $face;
		3557	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3558	}
		3559
		3560	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3561	my $face = cf::face::find "sound/$v";
		3562	cf::sound::set $k => $face;
		3563	}
		3564	}
		3565
		3566	sub reload_resources {
		3567	trace "reloading resource files...\n";
		3568
		3569	reload_exp_table;
		3570	reload_materials;
		3571	reload_facedata;
		3572	reload_sound;
		3573	reload_archetypes;
		3574	reload_regions;
		3575	reload_treasures;
		3576
		3577	trace "finished reloading resource files\n";
		3578	}
		3579
		3580	sub reload_config {
		3581	trace "reloading config file...\n";
		3582
		3583	0 < aio_load "$CONFDIR/config", my $config
		3584	or die "$CONFDIR/config: $!";
		3585
		3586	utf8::decode $config;
		3587	*CFG = yaml_load $config;
		3588
1989	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3589	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
1990		3590
1991	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3591	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
1992	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3592	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1993		3593
1994	if (exists $CFG{mlockall}) {	3594	if (exists $CFG{mlockall}) {
1995	eval {	3595	eval {
1996	$CFG{mlockall} ? &mlockall : &munlockall	3596	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1997	and die "WARNING: m(un)lockall failed: $!\n";	3597	and die "WARNING: m(un)lockall failed: $!\n";
1998	};	3598	};
1999	warn $@ if $@;	3599	warn $@ if $@;
2000	}	3600	}
2001	}	3601	}
2002		3602
		3603	sub pidfile() {
		3604	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3605	or die "$PIDFILE: $!";
		3606	flock $fh, &Fcntl::LOCK_EX
		3607	or die "$PIDFILE: flock: $!";
		3608	$fh
		3609	}
		3610
		3611	# make sure only one server instance is running at any one time
		3612	sub atomic {
		3613	my $fh = pidfile;
		3614
		3615	my $pid = <$fh>;
		3616	kill 9, $pid if $pid > 0;
		3617
		3618	seek $fh, 0, 0;
		3619	print $fh $$;
		3620	}
		3621
		3622	sub main_loop {
		3623	trace "EV::loop starting\n";
		3624	if (1) {
		3625	EV::loop;
		3626	}
		3627	trace "EV::loop returned\n";
		3628	goto &main_loop unless $REALLY_UNLOOP;
		3629	}
		3630
2003	sub main {	3631	sub main {
		3632	cf::init_globals; # initialise logging
		3633
		3634	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3635	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3636	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3637	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3638
		3639	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3640
2004	# we must not ever block the main coroutine	3641	# we must not ever block the main coroutine
2005	local $Coro::idle = sub {	3642	local $Coro::idle = sub {
2006	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3643	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2007	Coro::async_pool { Event::one_event };	3644	(async {
		3645	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3646	EV::loop EV::LOOP_ONESHOT;
		3647	})->prio (Coro::PRIO_MAX);
2008	};	3648	};
2009		3649
2010	cfg_load;	3650	evthread_start IO::AIO::poll_fileno;
2011	db_load;	3651
		3652	cf::sync_job {
		3653	cf::incloader::init ();
		3654
		3655	cf::init_anim;
		3656	cf::init_attackmess;
		3657	cf::init_dynamic;
		3658
		3659	cf::load_settings;
		3660
		3661	reload_resources;
		3662	reload_config;
		3663	db_init;
		3664
		3665	cf::init_uuid;
		3666	cf::init_signals;
		3667	cf::init_skills;
		3668
		3669	cf::init_beforeplay;
		3670
		3671	atomic;
		3672
2012	load_extensions;	3673	load_extensions;
2013	Event::loop;	3674
		3675	utime time, time, $RUNTIMEFILE;
		3676
		3677	# no (long-running) fork's whatsoever before this point(!)
		3678	use POSIX ();
		3679	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3680
		3681	cf::_post_init 0;
		3682	};
		3683
		3684	cf::object::thawer::errors_are_fatal 0;
		3685	info "parse errors in files are no longer fatal from this point on.\n";
		3686
		3687	my $free_main; $free_main = EV::idle sub {
		3688	undef $free_main;
		3689	undef &main; # free gobs of memory :)
		3690	};
		3691
		3692	goto &main_loop;
2014	}	3693	}
2015		3694
2016	#############################################################################	3695	#############################################################################
2017	# initialisation	3696	# initialisation and cleanup
2018		3697
		3698	# install some emergency cleanup handlers
		3699	BEGIN {
		3700	our %SIGWATCHER = ();
		3701	for my $signal (qw(INT HUP TERM)) {
		3702	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3703	cf::cleanup "SIG$signal";
		3704	};
		3705	}
		3706	}
		3707
		3708	sub write_runtime_sync {
		3709	my $t0 = AE::time;
		3710
		3711	# first touch the runtime file to show we are still running:
		3712	# the fsync below can take a very very long time.
		3713
		3714	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3715
		3716	my $guard = cf::lock_acquire "write_runtime";
		3717
		3718	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3719	or return;
		3720
		3721	my $value = $cf::RUNTIME + 90 + 10;
		3722	# 10 is the runtime save interval, for a monotonic clock
		3723	# 60 allows for the watchdog to kill the server.
		3724
		3725	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3726	and return;
		3727
		3728	# always fsync - this file is important
		3729	aio_fsync $fh
		3730	and return;
		3731
		3732	# touch it again to show we are up-to-date
		3733	aio_utime $fh, undef, undef;
		3734
		3735	close $fh
		3736	or return;
		3737
		3738	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3739	and return;
		3740
		3741	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3742
		3743	1
		3744	}
		3745
		3746	our $uuid_lock;
		3747	our $uuid_skip;
		3748
		3749	sub write_uuid_sync($) {
		3750	$uuid_skip ||= $_[0];
		3751
		3752	return if $uuid_lock;
		3753	local $uuid_lock = 1;
		3754
		3755	my $uuid = "$LOCALDIR/uuid";
		3756
		3757	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3758	or return;
		3759
		3760	my $value = uuid_seq uuid_cur;
		3761
		3762	unless ($value) {
		3763	info "cowardly refusing to write zero uuid value!\n";
		3764	return;
		3765	}
		3766
		3767	my $value = uuid_str $value + $uuid_skip;
		3768	$uuid_skip = 0;
		3769
		3770	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3771	and return;
		3772
		3773	# always fsync - this file is important
		3774	aio_fsync $fh
		3775	and return;
		3776
		3777	close $fh
		3778	or return;
		3779
		3780	aio_rename "$uuid~", $uuid
		3781	and return;
		3782
		3783	trace "uuid file written ($value).\n";
		3784
		3785	1
		3786
		3787	}
		3788
		3789	sub write_uuid($$) {
		3790	my ($skip, $sync) = @_;
		3791
		3792	$sync ? write_uuid_sync $skip
		3793	: async { write_uuid_sync $skip };
		3794	}
		3795
		3796	sub emergency_save() {
		3797	my $freeze_guard = cf::freeze_mainloop;
		3798
		3799	info "emergency_perl_save: enter\n";
		3800
		3801	# this is a trade-off: we want to be very quick here, so
		3802	# save all maps without fsync, and later call a global sync
		3803	# (which in turn might be very very slow)
		3804	local $USE_FSYNC = 0;
		3805
		3806	cf::sync_job {
		3807	cf::write_runtime_sync; # external watchdog should not bark
		3808
		3809	# use a peculiar iteration method to avoid tripping on perl
		3810	# refcount bugs in for. also avoids problems with players
		3811	# and maps saved/destroyed asynchronously.
		3812	info "emergency_perl_save: begin player save\n";
		3813	for my $login (keys %cf::PLAYER) {
		3814	my $pl = $cf::PLAYER{$login} or next;
		3815	$pl->valid or next;
		3816	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3817	$pl->save;
		3818	}
		3819	info "emergency_perl_save: end player save\n";
		3820
		3821	cf::write_runtime_sync; # external watchdog should not bark
		3822
		3823	info "emergency_perl_save: begin map save\n";
		3824	for my $path (keys %cf::MAP) {
		3825	my $map = $cf::MAP{$path} or next;
		3826	$map->valid or next;
		3827	$map->save;
		3828	}
		3829	info "emergency_perl_save: end map save\n";
		3830
		3831	cf::write_runtime_sync; # external watchdog should not bark
		3832
		3833	info "emergency_perl_save: begin database checkpoint\n";
		3834	BDB::db_env_txn_checkpoint $DB_ENV;
		3835	info "emergency_perl_save: end database checkpoint\n";
		3836
		3837	info "emergency_perl_save: begin write uuid\n";
		3838	write_uuid_sync 1;
		3839	info "emergency_perl_save: end write uuid\n";
		3840
		3841	cf::write_runtime_sync; # external watchdog should not bark
		3842
		3843	trace "emergency_perl_save: syncing database to disk";
		3844	BDB::db_env_txn_checkpoint $DB_ENV;
		3845
		3846	info "emergency_perl_save: starting sync\n";
		3847	IO::AIO::aio_sync sub {
		3848	info "emergency_perl_save: finished sync\n";
		3849	};
		3850
		3851	cf::write_runtime_sync; # external watchdog should not bark
		3852
		3853	trace "emergency_perl_save: flushing outstanding aio requests";
		3854	while (IO::AIO::nreqs || BDB::nreqs) {
		3855	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3856	}
		3857
		3858	cf::write_runtime_sync; # external watchdog should not bark
		3859	};
		3860
		3861	info "emergency_perl_save: leave\n";
		3862	}
		3863
		3864	sub post_cleanup {
		3865	my ($make_core) = @_;
		3866
		3867	IO::AIO::flush;
		3868
		3869	error Carp::longmess "post_cleanup backtrace"
		3870	if $make_core;
		3871
		3872	my $fh = pidfile;
		3873	unlink $PIDFILE if <$fh> == $$;
		3874	}
		3875
		3876	# a safer delete_package, copied from Symbol
		3877	sub clear_package($) {
		3878	my $pkg = shift;
		3879
		3880	# expand to full symbol table name if needed
		3881	unless ($pkg =~ /^main::.*::$/) {
		3882	$pkg = "main$pkg" if $pkg =~ /^::/;
		3883	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3884	$pkg .= '::' unless $pkg =~ /::$/;
		3885	}
		3886
		3887	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3888	my $stem_symtab = *{$stem}{HASH};
		3889
		3890	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3891	or return;
		3892
		3893	# clear all symbols
		3894	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3895	for my $name (keys %$leaf_symtab) {
		3896	_gv_clear *{"$pkg$name"};
		3897	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3898	}
		3899	}
		3900
2019	sub reload() {	3901	sub do_reload_perl() {
2020	# can/must only be called in main	3902	# can/must only be called in main
2021	if ($Coro::current != $Coro::main) {	3903	unless (in_main) {
2022	warn "can only reload from main coroutine\n";	3904	error "can only reload from main coroutine";
2023	return;	3905	return;
2024	}	3906	}
2025		3907
2026	warn "reloading...";	3908	return if $RELOAD++;
2027		3909
2028	my $guard = freeze_mainloop;	3910	my $t1 = AE::time;
		3911
		3912	while ($RELOAD) {
		3913	cf::get_slot 0.1, -1, "reload_perl";
		3914	info "perl_reload: reloading...";
		3915
		3916	trace "perl_reload: entering sync_job";
		3917
		3918	cf::sync_job {
2029	cf::emergency_save;	3919	#cf::emergency_save;
2030		3920
2031	eval {	3921	trace "perl_reload: cancelling all extension coros";
2032	# if anything goes wrong in here, we should simply crash as we already saved
2033
2034	# cancel all watchers
2035	for (Event::all_watchers) {
2036	$_->cancel if $_->data & WF_AUTOCANCEL;
2037	}
2038
2039	# cancel all extension coros
2040	$_->cancel for values %EXT_CORO;	3922	$_->cancel for values %EXT_CORO;
2041	%EXT_CORO = ();	3923	%EXT_CORO = ();
2042		3924
2043	# unload all extensions	3925	trace "perl_reload: removing commands";
2044	for (@exts) {	3926	%COMMAND = ();
2045	warn "unloading <$_>";
2046	unload_extension $_;
2047	}
2048		3927
2049	# unload all modules loaded from $LIBDIR	3928	trace "perl_reload: removing ext/exti commands";
2050	while (my ($k, $v) = each %INC) {	3929	%EXTCMD = ();
2051	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3930	%EXTICMD = ();
2052		3931
2053	warn "removing <$k>";	3932	trace "perl_reload: unloading/nuking all extensions";
2054	delete $INC{$k};	3933	for my $pkg (@EXTS) {
		3934	trace "... unloading $pkg";
2055		3935
2056	$k =~ s/\.pm$//;
2057	$k =~ s/\//::/g;
2058
2059	if (my $cb = $k->can ("unload_module")) {	3936	if (my $cb = $pkg->can ("unload")) {
		3937	eval {
2060	$cb->();	3938	$cb->($pkg);
		3939	1
		3940	} or error "$pkg unloaded, but with errors: $@";
		3941	}
		3942
		3943	trace "... clearing $pkg";
		3944	clear_package $pkg;
2061	}	3945	}
2062		3946
2063	Symbol::delete_package $k;	3947	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3948	while (my ($k, $v) = each %INC) {
		3949	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3950
		3951	trace "... unloading $k";
		3952	delete $INC{$k};
		3953
		3954	$k =~ s/\.pm$//;
		3955	$k =~ s/\//::/g;
		3956
		3957	if (my $cb = $k->can ("unload_module")) {
		3958	$cb->();
		3959	}
		3960
		3961	clear_package $k;
2064	}	3962	}
2065		3963
2066	# sync database to disk
2067	cf::db_sync;
2068	IO::AIO::flush;
2069
2070	# get rid of safe::, as good as possible	3964	trace "perl_reload: getting rid of safe::, as good as possible";
2071	Symbol::delete_package "safe::$_"	3965	clear_package "safe::$_"
2072	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3966	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2073		3967
2074	# remove register_script_function callbacks	3968	trace "perl_reload: unloading cf.pm \"a bit\"";
2075	# TODO
2076
2077	# unload cf.pm "a bit"
2078	delete $INC{"cf.pm"};	3969	delete $INC{"cf.pm"};
		3970	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2079		3971
2080	# don't, removes xs symbols, too,	3972	# don't, removes xs symbols, too,
2081	# and global variables created in xs	3973	# and global variables created in xs
2082	#Symbol::delete_package __PACKAGE__;	3974	#clear_package __PACKAGE__;
2083		3975
2084	# reload cf.pm	3976	info "perl_reload: unload completed, starting to reload now";
2085	warn "reloading cf.pm";	3977
		3978	trace "perl_reload: reloading cf.pm";
2086	require cf;	3979	require cf;
2087	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3980	cf::_connect_to_perl_1;
2088		3981
2089	# load config and database again	3982	trace "perl_reload: loading config and database again";
2090	cf::cfg_load;	3983	cf::reload_config;
2091	cf::db_load;
2092		3984
2093	# load extensions	3985	trace "perl_reload: loading extensions";
2094	warn "load extensions";
2095	cf::load_extensions;	3986	cf::load_extensions;
2096		3987
2097	# reattach attachments to objects	3988	if ($REATTACH_ON_RELOAD) {
2098	warn "reattach";	3989	trace "perl_reload: reattaching attachments to objects/players";
2099	_global_reattach;	3990	_global_reattach; # objects, sockets
		3991	trace "perl_reload: reattaching attachments to maps";
		3992	reattach $_ for values %MAP;
		3993	trace "perl_reload: reattaching attachments to players";
		3994	reattach $_ for values %PLAYER;
		3995	}
		3996
		3997	cf::_post_init 1;
		3998
		3999	trace "perl_reload: leaving sync_job";
		4000
		4001	1
		4002	} or do {
		4003	error $@;
		4004	cf::cleanup "perl_reload: error, exiting.";
		4005	};
		4006
		4007	--$RELOAD;
		4008	}
		4009
		4010	$t1 = AE::time - $t1;
		4011	info "perl_reload: completed in ${t1}s\n";
		4012	};
		4013
		4014	our $RELOAD_WATCHER; # used only during reload
		4015
		4016	sub reload_perl() {
		4017	# doing reload synchronously and two reloads happen back-to-back,
		4018	# coro crashes during coro_state_free->destroy here.
		4019
		4020	$RELOAD_WATCHER ||= cf::async {
		4021	Coro::AIO::aio_wait cache_extensions;
		4022
		4023	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4024	do_reload_perl;
		4025	undef $RELOAD_WATCHER;
		4026	};
2100	};	4027	};
2101
2102	if ($@) {
2103	warn $@;
2104	warn "error while reloading, exiting.";
2105	exit 1;
2106	}
2107
2108	warn "reloaded successfully";
2109	};
2110
2111	#############################################################################
2112
2113	unless ($LINK_MAP) {
2114	$LINK_MAP = cf::map::new;
2115
2116	$LINK_MAP->width (41);
2117	$LINK_MAP->height (41);
2118	$LINK_MAP->alloc;
2119	$LINK_MAP->path ("{link}");
2120	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2121	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2122
2123	# dirty hack because... archetypes are not yet loaded
2124	Event->timer (
2125	after => 2,
2126	cb => sub {
2127	$_[0]->w->cancel;
2128
2129	# provide some exits "home"
2130	my $exit = cf::object::new "exit";
2131
2132	$exit->slaying ($EMERGENCY_POSITION->[0]);
2133	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2134	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2135
2136	$LINK_MAP->insert ($exit->clone, 19, 19);
2137	$LINK_MAP->insert ($exit->clone, 19, 20);
2138	$LINK_MAP->insert ($exit->clone, 19, 21);
2139	$LINK_MAP->insert ($exit->clone, 20, 19);
2140	$LINK_MAP->insert ($exit->clone, 20, 21);
2141	$LINK_MAP->insert ($exit->clone, 21, 19);
2142	$LINK_MAP->insert ($exit->clone, 21, 20);
2143	$LINK_MAP->insert ($exit->clone, 21, 21);
2144
2145	$exit->destroy;
2146	});
2147
2148	$LINK_MAP->{deny_save} = 1;
2149	$LINK_MAP->{deny_reset} = 1;
2150
2151	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2152	}	4028	}
2153
2154	register "<global>", __PACKAGE__;
2155		4029
2156	register_command "reload" => sub {	4030	register_command "reload" => sub {
2157	my ($who, $arg) = @_;	4031	my ($who, $arg) = @_;
2158		4032
2159	if ($who->flag (FLAG_WIZ)) {	4033	if ($who->flag (FLAG_WIZ)) {
2160	$who->message ("start of reload.");
2161	reload;
2162	$who->message ("end of reload.");	4034	$who->message ("reloading server.");
		4035	async {
		4036	$Coro::current->{desc} = "perl_reload";
		4037	reload_perl;
		4038	};
2163	}	4039	}
2164	};	4040	};
2165		4041
2166	unshift @INC, $LIBDIR;	4042	#############################################################################
2167		4043
2168	$TICK_WATCHER = Event->timer (	4044	my $bug_warning = 0;
2169	reentrant => 0,	4045
2170	prio => 0,	4046	our @WAIT_FOR_TICK;
2171	at => $NEXT_TICK || $TICK,	4047	our @WAIT_FOR_TICK_BEGIN;
2172	data => WF_AUTOCANCEL,	4048
2173	cb => sub {	4049	sub wait_for_tick() {
		4050	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4051
		4052	my $signal = new Coro::Signal;
		4053	push @WAIT_FOR_TICK, $signal;
		4054	$signal->wait;
		4055	}
		4056
		4057	sub wait_for_tick_begin() {
		4058	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4059
		4060	my $signal = new Coro::Signal;
		4061	push @WAIT_FOR_TICK_BEGIN, $signal;
		4062	$signal->wait;
		4063	}
		4064
		4065	sub tick {
		4066	if ($Coro::current != $Coro::main) {
		4067	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4068	unless ++$bug_warning > 10;
		4069	return;
		4070	}
		4071
2174	cf::server_tick; # one server iteration	4072	cf::server_tick; # one server iteration
2175	$RUNTIME += $TICK;
2176	$NEXT_TICK += $TICK;
2177		4073
2178	# if we are delayed by four ticks or more, skip them all	4074	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2179	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2180		4075
2181	$TICK_WATCHER->at ($NEXT_TICK);	4076	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2182	$TICK_WATCHER->start;	4077	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2183	},	4078	Coro::async_pool {
2184	);	4079	$Coro::current->{desc} = "runtime saver";
2185
2186	IO::AIO::max_poll_time $TICK * 0.2;
2187
2188	Event->io (
2189	fd => IO::AIO::poll_fileno,
2190	poll => 'r',
2191	prio => 5,
2192	data => WF_AUTOCANCEL,
2193	cb => \&IO::AIO::poll_cb,
2194	);
2195
2196	Event->timer (
2197	data => WF_AUTOCANCEL,
2198	after => 0,
2199	interval => 10,
2200	cb => sub {
2201	(Coro::unblock_sub {
2202	write_runtime	4080	write_runtime_sync
2203	or warn "ERROR: unable to write runtime file: $!";	4081	or error "ERROR: unable to write runtime file: $!";
2204	})->();	4082	};
2205	},	4083	}
2206	);	4084
		4085	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4086	$sig->send;
		4087	}
		4088	while (my $sig = shift @WAIT_FOR_TICK) {
		4089	$sig->send;
		4090	}
		4091
		4092	$LOAD = ($NOW - $TICK_START) / $TICK;
		4093	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4094
		4095	if (0) {
		4096	if ($NEXT_TICK) {
		4097	my $jitter = $TICK_START - $NEXT_TICK;
		4098	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4099	debug "jitter $JITTER\n";#d#
		4100	}
		4101	}
		4102	}
		4103
		4104	{
		4105	# configure BDB
		4106
		4107	BDB::min_parallel 16;
		4108	BDB::max_poll_reqs $TICK * 0.1;
		4109	$AnyEvent::BDB::WATCHER->priority (1);
		4110
		4111	unless ($DB_ENV) {
		4112	$DB_ENV = BDB::db_env_create;
		4113	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4114	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4115	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4116	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4117	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4118
		4119	cf::sync_job {
		4120	eval {
		4121	BDB::db_env_open
		4122	$DB_ENV,
		4123	$BDBDIR,
		4124	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4125	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4126	0666;
		4127
		4128	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4129	};
		4130
		4131	cf::cleanup "db_env_open(db): $@" if $@;
		4132	};
		4133	}
		4134
		4135	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4136	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4137	};
		4138	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4139	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4140	};
		4141	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4142	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4143	};
		4144	}
		4145
		4146	{
		4147	# configure IO::AIO
		4148
		4149	IO::AIO::min_parallel 8;
		4150	IO::AIO::max_poll_time $TICK * 0.1;
		4151	undef $AnyEvent::AIO::WATCHER;
		4152	}
		4153
		4154	our $_log_backtrace;
		4155	our $_log_backtrace_last;
		4156
		4157	sub _log_backtrace {
		4158	my ($msg, @addr) = @_;
		4159
		4160	$msg =~ s/\n$//;
		4161
		4162	if ($_log_backtrace_last eq $msg) {
		4163	LOG llevInfo, "[ABT] $msg\n";
		4164	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4165	# limit the # of concurrent backtraces
		4166	} elsif ($_log_backtrace < 2) {
		4167	$_log_backtrace_last = $msg;
		4168	++$_log_backtrace;
		4169	my $perl_bt = Carp::longmess $msg;
		4170	async {
		4171	$Coro::current->{desc} = "abt $msg";
		4172
		4173	my @bt = fork_call {
		4174	@addr = map { sprintf "%x", $_ } @addr;
		4175	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4176	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4177	or die "addr2line: $!";
		4178
		4179	my @funcs;
		4180	my @res = <$fh>;
		4181	chomp for @res;
		4182	while (@res) {
		4183	my ($func, $line) = splice @res, 0, 2, ();
		4184	push @funcs, "[$func] $line";
		4185	}
		4186
		4187	@funcs
		4188	};
		4189
		4190	LOG llevInfo, "[ABT] $perl_bt\n";
		4191	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4192	LOG llevInfo, "[ABT] $_\n" for @bt;
		4193	--$_log_backtrace;
		4194	};
		4195	} else {
		4196	LOG llevInfo, "[ABT] $msg\n";
		4197	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4198	}
		4199	}
		4200
		4201	# load additional modules
		4202	require "cf/$_.pm" for @EXTRA_MODULES;
		4203	cf::_connect_to_perl_2;
2207		4204
2208	END { cf::emergency_save }	4205	END { cf::emergency_save }
2209		4206
2210	1	4207	1
2211		4208

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