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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.137 by root, Fri Jan 5 10:23:05 2007 UTC vs.
Revision 1.528 by root, Fri Apr 23 04:42:12 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
20	use Digest::MD5;	55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
21	use Fcntl;	58	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
24	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
25		64
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
27		66
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		71
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	121	our $NEXT_TICK;
45	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
46		130
47	our %CFG;	131	our %CFG;
48		132
49	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
51		136
52	our %MAP; # all maps	137	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	138	our (%MAP, %MAP_LOADING ); # all maps
54	our $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 process
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
		252
110	=back	253	=back
111		254
112	=cut	255	=cut
113		256
114	BEGIN {	257	$Coro::State::WARNHOOK = sub {
115	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	258	my $msg = join "", @_;
117	utf8::encode $msg;
118		259
119	$msg .= "\n"	260	$msg .= "\n"
120	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
121		262
		263	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		264
122	LOG llevError, "cfperl: $msg";	265	LOG llevError, $msg;
123	};	266	};
124	}	267
		268	$Coro::State::DIEHOOK = sub {
		269	return unless $^S eq 0; # "eq", not "=="
		270
		271	warn Carp::longmess $_[0];
		272
		273	if (in_main) {#d#
		274	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		275	return;#d#
		276	}#d#
		277
		278	# kill coroutine otherwise
		279	Coro::terminate
		280	};
125		281
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	286	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		287	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	288	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		289
133	# we bless all objects into (empty) derived classes to force a method lookup	290	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	291	# within the Safe compartment.
135	for my $pkg (qw(	292	for my $pkg (qw(
136	cf::global cf::attachable	293	cf::global cf::attachable
137	cf::object cf::object::player	294	cf::object cf::object::player
138	cf::client cf::player	295	cf::client cf::player
139	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
140	cf::map cf::party cf::region	298	cf::party cf::region
141	)) {	299	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	301	}
145		302
146	$Event::DIED = sub {	303	$EV::DIED = sub {
147	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
148	};	305	};
149		306
150	my %ext_pkg;	307	#############################################################################
151	my @exts;
152	my @hook;
153		308
154	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
155		310
156	=over 4	311	=over 4
157		312
158	=cut	313	=item dumpval $ref
159		314
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	315	=cut
161		316
		317	sub dumpval {
		318	eval {
		319	local $SIG{__DIE__};
		320	my $d;
		321	if (1) {
		322	$d = new Data::Dumper([$_[0]], ["*var"]);
		323	$d->Terse(1);
		324	$d->Indent(2);
		325	$d->Quotekeys(0);
		326	$d->Useqq(1);
		327	#$d->Bless(...);
		328	$d->Seen($_[1]) if @_ > 1;
		329	$d = $d->Dump();
		330	}
		331	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		332	$d
		333	} || "[unable to dump $_[0]: '$@']";
		334	}
		335
162	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
163		337
164	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
165		339
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
174		341
175	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
176		343
177	=cut	344	=cut
178		345
179	sub to_json($) {	346	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	347
181	JSON::Syck::Dump $_[0]	348	sub encode_json($) { $json_coder->encode ($_[0]) }
		349	sub decode_json($) { $json_coder->decode ($_[0]) }
		350
		351	=item cf::post_init { BLOCK }
		352
		353	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		354	but I<before> the server starts ticking again.
		355
		356	The cdoeblock will have a single boolean argument to indicate whether this
		357	is a reload or not.
		358
		359	=cut
		360
		361	sub post_init(&) {
		362	push @POST_INIT, shift;
182	}	363	}
183		364
184	=item cf::lock_wait $string	365	=item cf::lock_wait $string
185		366
186	Wait until the given lock is available. See cf::lock_acquire.	367	Wait until the given lock is available. See cf::lock_acquire.
187		368
188	=item my $lock = cf::lock_acquire $string	369	=item my $lock = cf::lock_acquire $string
189		370
190	Wait until the given lock is available and then acquires it and returns	371	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,	372	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	373	for example when the coroutine gets canceled), the lock is automatically
193	returned.	374	returned.
194		375
		376	Locks are *not* recursive, locking from the same coro twice results in a
		377	deadlocked coro.
		378
195	Lock names should begin with a unique identifier (for example, cf::map::find	379	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	380	uses map_find and cf::map::load uses map_load).
197		381
198	=cut	382	=item $locked = cf::lock_active $string
199		383
200	our %LOCK;	384	Return true if the lock is currently active, i.e. somebody has locked it.
		385
		386	=cut
		387
		388	our $LOCKS = new Coro::SemaphoreSet;
201		389
202	sub lock_wait($) {	390	sub lock_wait($) {
203	my ($key) = @_;	391	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	392	}
211		393
212	sub lock_acquire($) {	394	sub lock_acquire($) {
213	my ($key) = @_;	395	$LOCKS->guard ($_[0])
		396	}
214		397
215	# wait, to be sure we are not locked	398	sub lock_active($) {
216	lock_wait $key;	399	$LOCKS->count ($_[0]) < 1
		400	}
217		401
218	$LOCK{$key} = [];	402	sub freeze_mainloop {
		403	tick_inhibit_inc;
219		404
220	Coro::guard {	405	&Guard::guard (\&tick_inhibit_dec);
221	# wake up all waiters, to be on the safe side	406	}
222	$_->ready for @{ delete $LOCK{$key} };	407
		408	=item cf::periodic $interval, $cb
		409
		410	Like EV::periodic, but randomly selects a starting point so that the actions
		411	get spread over time.
		412
		413	=cut
		414
		415	sub periodic($$) {
		416	my ($interval, $cb) = @_;
		417
		418	my $start = rand List::Util::min 180, $interval;
		419
		420	EV::periodic $start, $interval, 0, $cb
		421	}
		422
		423	=item cf::get_slot $time[, $priority[, $name]]
		424
		425	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		426	This call blocks and returns only when you have at least C<$time> seconds
		427	of cpu time till the next tick. The slot is only valid till the next cede.
		428
		429	The optional C<$name> can be used to identify the job to run. It might be
		430	used for statistical purposes and should identify the same time-class.
		431
		432	Useful for short background jobs.
		433
		434	=cut
		435
		436	our @SLOT_QUEUE;
		437	our $SLOT_QUEUE;
		438	our $SLOT_DECAY = 0.9;
		439
		440	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		441	$SLOT_QUEUE = Coro::async {
		442	$Coro::current->desc ("timeslot manager");
		443
		444	my $signal = new Coro::Signal;
		445	my $busy;
		446
		447	while () {
		448	next_job:
		449
		450	my $avail = cf::till_tick;
		451
		452	for (0 .. $#SLOT_QUEUE) {
		453	if ($SLOT_QUEUE[$_][0] <= $avail) {
		454	$busy = 0;
		455	my $job = splice @SLOT_QUEUE, $_, 1, ();
		456	$job->[2]->send;
		457	Coro::cede;
		458	goto next_job;
		459	} else {
		460	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		461	}
		462	}
		463
		464	if (@SLOT_QUEUE) {
		465	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		466	push @cf::WAIT_FOR_TICK, $signal;
		467	$signal->wait;
		468	} else {
		469	$busy = 0;
		470	Coro::schedule;
		471	}
223	}	472	}
		473	};
		474
		475	sub get_slot($;$$) {
		476	return if tick_inhibit || $Coro::current == $Coro::main;
		477
		478	my ($time, $pri, $name) = @_;
		479
		480	$time = clamp $time, 0.01, $TICK * .6;
		481
		482	my $sig = new Coro::Signal;
		483
		484	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		485	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		486	$SLOT_QUEUE->ready;
		487	$sig->wait;
224	}	488	}
225		489
226	=item cf::async { BLOCK }	490	=item cf::async { BLOCK }
227		491
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	492	Currently the same as Coro::async_pool, meaning you cannot use
229	error instead of exiting the server in case of a problem.	493	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		494	thing you are allowed to do is call C<prio> on it.
230		495
231	=cut	496	=cut
232		497
233	sub async(&) {	498	BEGIN { *async = \&Coro::async_pool }
234	my ($cb) = @_;
235
236	Coro::async {
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}
241
242	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;
244
245	my $guard = Coro::guard { $TICK_WATCHER->start };
246	$TICK_WATCHER->stop;
247	$guard
248	}
249		499
250	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
251		501
252	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
255		506
256	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
259	fast or be very important.	510	fast or be very important.
…		…
262		513
263	sub sync_job(&) {	514	sub sync_job(&) {
264	my ($job) = @_;	515	my ($job) = @_;
265		516
266	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
		518	my $time = AE::time;
		519
267	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
269		522
270	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	524
272	my $freeze_guard = freeze_mainloop;	525	my $freeze_guard = freeze_mainloop;
273		526
274	my $busy = 1;	527	my $busy = 1;
275	my @res;	528	my @res;
276		529
277	(Coro::async {	530	(async {
		531	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	532	@res = eval { $job->() };
279	warn $@ if $@;	533	warn $@ if $@;
280	undef $busy;	534	undef $busy;
281	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
282		536
283	while ($busy) {	537	while ($busy) {
		538	if (Coro::nready) {
284	Coro::cede_notself;	539	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
286	}	542	}
		543	}
		544
		545	my $time = AE::time - $time;
		546
		547	$TICK_START += $time; # do not account sync jobs to server load
287		548
288	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
289	} else {	550	} else {
290	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
291		552
292	$job->()	553	$job->()
293	}	554	}
294	}	555	}
295		556
296	=item $coro = cf::coro { BLOCK }	557	=item $coro = cf::async_ext { BLOCK }
297		558
298	Creates and returns a new coro. This coro is automcatially being canceled	559	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	560	extension calling this is being unloaded.
300		561
301	=cut	562	=cut
302		563
303	sub coro(&) {	564	sub async_ext(&) {
304	my $cb = shift;	565	my $cb = shift;
305		566
306	my $coro = &cf::async ($cb);	567	my $coro = &Coro::async ($cb);
307		568
308	$coro->on_destroy (sub {	569	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	570	delete $EXT_CORO{$coro+0};
310	});	571	});
311	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
312		573
313	$coro	574	$coro
314	}	575	}
315		576
316	sub write_runtime {	577	=item fork_call { }, $args
317	my $runtime = cf::localdir . "/runtime";
318		578
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	579	Executes the given code block with the given arguments in a seperate
320	or return;	580	process, returning the results. Everything must be serialisable with
		581	Coro::Storable. May, of course, block. Note that the executed sub may
		582	never block itself or use any form of event handling.
321		583
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	584	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		585
326	aio_fsync $fh	586	sub fork_call(&@) {
327	and return;	587	my ($cb, @args) = @_;
328		588
329	close $fh	589	# we seemingly have to make a local copy of the whole thing,
330	or return;	590	# otherwise perl prematurely frees the stuff :/
		591	# TODO: investigate and fix (likely this will be rather laborious)
331		592
332	aio_rename "$runtime~", $runtime	593	my @res = Coro::Util::fork_eval {
333	and return;	594	reset_signals;
		595	&$cb
		596	}, @args;
334		597
		598	wantarray ? @res : $res[-1]
		599	}
		600
		601	sub objinfo {
335	1	602	(
		603	"counter value" => cf::object::object_count,
		604	"objects created" => cf::object::create_count,
		605	"objects destroyed" => cf::object::destroy_count,
		606	"freelist size" => cf::object::free_count,
		607	"allocated objects" => cf::object::objects_size,
		608	"active objects" => cf::object::actives_size,
		609	)
		610	}
		611
		612	=item $coin = coin_from_name $name
		613
		614	=cut
		615
		616	our %coin_alias = (
		617	"silver" => "silvercoin",
		618	"silvercoin" => "silvercoin",
		619	"silvercoins" => "silvercoin",
		620	"gold" => "goldcoin",
		621	"goldcoin" => "goldcoin",
		622	"goldcoins" => "goldcoin",
		623	"platinum" => "platinacoin",
		624	"platinumcoin" => "platinacoin",
		625	"platinumcoins" => "platinacoin",
		626	"platina" => "platinacoin",
		627	"platinacoin" => "platinacoin",
		628	"platinacoins" => "platinacoin",
		629	"royalty" => "royalty",
		630	"royalties" => "royalty",
		631	);
		632
		633	sub coin_from_name($) {
		634	$coin_alias{$_[0]}
		635	? cf::arch::find $coin_alias{$_[0]}
		636	: undef
		637	}
		638
		639	=item $value = cf::db_get $family => $key
		640
		641	Returns a single value from the environment database.
		642
		643	=item cf::db_put $family => $key => $value
		644
		645	Stores the given C<$value> in the family. It can currently store binary
		646	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		647
		648	=item $db = cf::db_table "name"
		649
		650	Create and/or open a new database table. The string must not be "db" and must be unique
		651	within each server.
		652
		653	=cut
		654
		655	sub db_table($) {
		656	my ($name) = @_;
		657	my $db = BDB::db_create $DB_ENV;
		658
		659	eval {
		660	$db->set_flags (BDB::CHKSUM);
		661
		662	utf8::encode $name;
		663	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		664	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		665	cf::cleanup "db_open(db): $!" if $!;
		666	};
		667	cf::cleanup "db_open(db): $@" if $@;
		668
		669	$db
		670	}
		671
		672	our $DB;
		673
		674	sub db_init {
		675	cf::sync_job {
		676	$DB ||= db_table "db";
		677	};
		678	}
		679
		680	sub db_get($$) {
		681	my $key = "$_[0]/$_[1]";
		682
		683	cf::sync_job {
		684	BDB::db_get $DB, undef, $key, my $data;
		685
		686	$! ? ()
		687	: $data
		688	}
		689	}
		690
		691	sub db_put($$$) {
		692	BDB::dbreq_pri 4;
		693	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		694	}
		695
		696	=item cf::cache $id => [$paths...], $processversion => $process
		697
		698	Generic caching function that returns the value of the resource $id,
		699	caching and regenerating as required.
		700
		701	This function can block.
		702
		703	=cut
		704
		705	sub cache {
		706	my ($id, $src, $processversion, $process) = @_;
		707
		708	my $meta =
		709	join "\x00",
		710	$processversion,
		711	map {
		712	aio_stat $_
		713	and Carp::croak "$_: $!";
		714
		715	($_, (stat _)[7,9])
		716	} @$src;
		717
		718	my $dbmeta = db_get cache => "$id/meta";
		719	if ($dbmeta ne $meta) {
		720	# changed, we may need to process
		721
		722	my @data;
		723	my $md5;
		724
		725	for (0 .. $#$src) {
		726	0 <= aio_load $src->[$_], $data[$_]
		727	or Carp::croak "$src->[$_]: $!";
		728	}
		729
		730	# if processing is expensive, check
		731	# checksum first
		732	if (1) {
		733	$md5 =
		734	join "\x00",
		735	$processversion,
		736	map {
		737	cf::cede_to_tick;
		738	($src->[$_], Digest::MD5::md5_hex $data[$_])
		739	} 0.. $#$src;
		740
		741
		742	my $dbmd5 = db_get cache => "$id/md5";
		743	if ($dbmd5 eq $md5) {
		744	db_put cache => "$id/meta", $meta;
		745
		746	return db_get cache => "$id/data";
		747	}
		748	}
		749
		750	my $t1 = Time::HiRes::time;
		751	my $data = $process->(\@data);
		752	my $t2 = Time::HiRes::time;
		753
		754	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		755
		756	db_put cache => "$id/data", $data;
		757	db_put cache => "$id/md5" , $md5;
		758	db_put cache => "$id/meta", $meta;
		759
		760	return $data;
		761	}
		762
		763	db_get cache => "$id/data"
		764	}
		765
		766	=item cf::datalog type => key => value, ...
		767
		768	Log a datalog packet of the given type with the given key-value pairs.
		769
		770	=cut
		771
		772	sub datalog($@) {
		773	my ($type, %kv) = @_;
		774	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
336	}	775	}
337		776
338	=back	777	=back
339		778
340	=cut	779	=cut
341		780
342	#############################################################################	781	#############################################################################
343		782
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461
462	#############################################################################
463
464	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
465		784
466	Many objects in crossfire are so-called attachable objects. That means you can	785	Many objects in deliantra are so-called attachable objects. That means you can
467	attach callbacks/event handlers (a collection of which is called an "attachment")	786	attach callbacks/event handlers (a collection of which is called an "attachment")
468	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
469		788
470	In the following description, CLASS can be any of C<global>, C<object>	789	In the following description, CLASS can be any of C<global>, C<object>
471	C<player>, C<client> or C<map> (i.e. the attachable objects in	790	C<player>, C<client> or C<map> (i.e. the attachable objects in
472	crossfire+).	791	Deliantra).
473		792
474	=over 4	793	=over 4
475		794
476	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
477		796
…		…
521	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
522		841
523	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
524	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
525		844
526	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
527	that are attached at load/instantiate time, thus the need for a name.	846	that are attached at load/instantiate time, thus the need for a name.
528		847
529	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
530		849
531	=over 4	850	=over 4
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	910	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	911	our @CB_MAP = ();
593		912
594	my %attachment;	913	my %attachment;
595		914
		915	sub cf::attachable::thawer_merge {
		916	# simply override everything except _meta
		917	local $_[0]{_meta};
		918	%{$_[0]} = %{$_[1]};
		919	}
		920
596	sub _attach_cb($$$$) {	921	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	922	my ($registry, $event, $prio, $cb) = @_;
598		923
599	use sort 'stable';	924	use sort 'stable';
600		925
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
635		960
636	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		965
641	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	967	my $pkg = shift @arg;
643		968
644	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
673	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
674	}	999	}
675		1000
676	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
677	} else {	1002	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
679	}	1004	}
680		1005
681	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
682	}	1007	}
683		1008
…		…
685	if (ref $_[0]) {	1010	if (ref $_[0]) {
686	_object_attach @_;	1011	_object_attach @_;
687	} else {	1012	} else {
688	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
689	}	1014	}
		1015	_recalc_want;
690	};	1016	};
691		1017
692	# all those should be optimised	1018	# all those should be optimised
693	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
698	reattach ($obj);	1024	reattach ($obj);
699	} else {	1025	} else {
700	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
701	}	1027	}
		1028	_recalc_want;
702	};	1029	};
703		1030
704	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
706		1033
…		…
721	";	1048	";
722	die if $@;	1049	die if $@;
723	}	1050	}
724		1051
725	our $override;	1052	our $override;
726	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1053	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
727		1054
728	sub override {	1055	sub override {
729	$override = 1;	1056	$override = 1;
730	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
731	}	1058	}
732		1059
733	sub do_invoke {	1060	sub do_invoke {
734	my $event = shift;	1061	my $event = shift;
735	my $callbacks = shift;	1062	my $callbacks = shift;
736		1063
737	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
738		1065
739	local $override;	1066	local $override;
740		1067
741	for (@$callbacks) {	1068	for (@$callbacks) {
742	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
751	}	1078	}
752		1079
753	0	1080	0
754	}	1081	}
755		1082
756	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
757		1084
758	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
759		1086
760	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
761		1088
762	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1089	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
763	removed in future versions), and there is no public API to access override	1090	removed in future versions), and there is no public API to access override
764	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		1092
766	=back	1093	=back
767		1094
768	=cut	1095	=cut
769		1096
770	#############################################################################	1097	#############################################################################
771	# object support	1098	# object support
		1099
		1100	sub _object_equal($$);
		1101	sub _object_equal($$) {
		1102	my ($a, $b) = @_;
		1103
		1104	return 0 unless (ref $a) eq (ref $b);
		1105
		1106	if ("HASH" eq ref $a) {
		1107	my @ka = keys %$a;
		1108	my @kb = keys %$b;
		1109
		1110	return 0 if @ka != @kb;
		1111
		1112	for (0 .. $#ka) {
		1113	return 0 unless $ka[$_] eq $kb[$_];
		1114	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1115	}
		1116
		1117	} elsif ("ARRAY" eq ref $a) {
		1118
		1119	return 0 if @$a != @$b;
		1120
		1121	for (0 .. $#$a) {
		1122	return 0 unless _object_equal $a->[$_], $b->[$_];
		1123	}
		1124
		1125	} elsif ($a ne $b) {
		1126	return 0;
		1127	}
		1128
		1129	1
		1130	}
		1131
		1132	our $SLOW_MERGES;#d#
		1133	sub _can_merge {
		1134	my ($ob1, $ob2) = @_;
		1135
		1136	++$SLOW_MERGES;#d#
		1137
		1138	# we do the slow way here
		1139	return _object_equal $ob1, $ob2
		1140	}
772		1141
773	sub reattach {	1142	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	1144	my ($obj) = @_;
		1145
		1146	# no longer needed after getting rid of delete_package?
		1147	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		1148
777	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
778		1150
779	@$registry = ();	1151	@$registry = ();
780		1152
…		…
795	cf::attachable->attach (	1167	cf::attachable->attach (
796	prio => -1000000,	1168	prio => -1000000,
797	on_instantiate => sub {	1169	on_instantiate => sub {
798	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
799		1171
800	$data = from_json $data;	1172	$data = decode_json $data;
801		1173
802	for (@$data) {	1174	for (@$data) {
803	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
804		1176
805	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
821	sub object_freezer_save {	1193	sub object_freezer_save {
822	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
823		1195
824	sync_job {	1196	sync_job {
825	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
826	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
827	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
828		1202
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1205	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1206	if ($cf::USE_FSYNC) {
		1207	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
832	aio_fsync $fh;	1208	aio_fsync $fh;
		1209	}
833	close $fh;	1210	aio_close $fh;
834		1211
835	if (@$objs) {	1212	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1213	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	1216	aio_write $fh, 0, (length $data), $data, 0;
		1217	if ($cf::USE_FSYNC) {
		1218	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
840	aio_fsync $fh;	1219	aio_fsync $fh;
		1220	}
841	close $fh;	1221	aio_close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
843	}	1223	}
844	} else {	1224	} else {
845	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
846	}	1226	}
847		1227
848	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
849	} else {	1232	} else {
850	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
851	}	1234	}
852	} else {	1235	} else {
853	aio_unlink $filename;	1236	aio_unlink $filename;
854	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
855	}	1238	}
856	}	1239	};
857	}	1240	}
858		1241
859	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
861		1244
…		…
873	or return;	1256	or return;
874		1257
875	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
876	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
877	or return;	1260	or return;
		1261
878	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
879	}	1264	}
880		1265
		1266	utf8::decode (my $decname = $filename);
881	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
883	return ($data, $av);	1271	($data, $av)
884	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
885		1279
886	#############################################################################	1280	#############################################################################
887	# command handling &c	1281	# command handling &c
888		1282
889	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1297	}
904		1298
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1300
907	Register a callbackf ro execution when the client sends an extcmd packet.	1301	Register a callback for execution when the client sends an (synchronous)
		1302	extcmd packet. Ext commands will be processed in the order they are
		1303	received by the server, like other user commands. The first argument is
		1304	the logged-in player. Ext commands can only be processed after a player
		1305	has logged in successfully.
908		1306
909	If the callback returns something, it is sent back as if reply was being	1307	If the callback returns something, it is sent back as if reply was being
910	called.	1308	called.
911		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
912	=cut	1321	=cut
913		1322
914	sub register_extcmd {	1323	sub register_extcmd {
915	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
916		1325
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1326	$EXTCMD{$name} = $cb;
921	}	1327	}
		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
922		1336
923	cf::player->attach (	1337	cf::player->attach (
924	on_command => sub {	1338	on_unknown_command => sub {
925	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
926		1340
927	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
928	or return;	1342	or return;
929		1343
…		…
934	cf::override;	1348	cf::override;
935	},	1349	},
936	on_extcmd => sub {	1350	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
938		1352
939	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1354
941	if (ref $msg) {	1355	if (ref $msg) {
		1356	my ($type, $reply, @payload) =
		1357	"ARRAY" eq ref $msg
		1358	? @$msg
		1359	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1360
		1361	my @reply;
		1362
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
944	$pl->ext_reply ($msg->{msgid}, %reply);
945	}
946	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
947	} else {	1370	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
949	}	1372	}
950		1373
951	cf::override;	1374	cf::override;
952	},	1375	},
953	);	1376	);
954		1377
955	sub register {	1378	# "readahead" all extensions
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	1379	sub cache_extensions {
962	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
963		1381
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
965	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
966	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969
970	warn "loading '$path' into '$pkg'\n";
971
972	open my $fh, "<:utf8", $path
973	or die "$path: $!";
974
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }
1004
1005	# remove commands
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}	1385	}
1014	}	1386	};
1015		1387
1016	# remove extcmds	1388	$grp
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}	1389	}
1030		1390
1031	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
1032	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;	1396	next unless -r $path;
1034	eval {	1397
1035	load_extension $ext;	1398	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1399	my $base = $1;
		1400	my $pkg = $1;
		1401	$pkg =~ s/[^[:word:]]/_/g;
		1402	$pkg = "ext::$pkg";
		1403
		1404	open my $fh, "<:utf8", $path
		1405	or die "$path: $!";
		1406
		1407	my $source = do { local $/; <$fh> };
		1408
		1409	my %ext = (
		1410	path => $path,
		1411	base => $base,
		1412	pkg => $pkg,
		1413	);
		1414
		1415	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1416	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1417
		1418	$ext{source} =
		1419	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1420	. "#line 1 \"$path\"\n{\n"
		1421	. $source
		1422	. "\n};\n1";
		1423
		1424	$todo{$base} = \%ext;
		1425	}
		1426
		1427	my $pass = 0;
		1428	my %done;
		1429	while (%todo) {
		1430	my $progress;
		1431
		1432	++$pass;
		1433
		1434	ext:
		1435	while (my ($k, $v) = each %todo) {
		1436	for (split /,\s*/, $v->{meta}{depends}) {
		1437	next ext
		1438	unless exists $done{$_};
		1439	}
		1440
		1441	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1442
		1443	my $active = eval $v->{source};
		1444
		1445	if (length $@) {
		1446	warn "$v->{path}: $@\n";
		1447
		1448	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1449	if exists $v->{meta}{mandatory};
		1450
		1451	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1452	delete $todo{$k};
		1453	} else {
		1454	$done{$k} = delete $todo{$k};
		1455	push @EXTS, $v->{pkg};
		1456	$progress = 1;
		1457
		1458	warn "$v->{base}: extension inactive.\n"
		1459	unless $active;
		1460	}
1036	1	1461	}
1037	} or warn "$ext not loaded: $@";	1462
		1463	unless ($progress) {
		1464	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1465
		1466	while (my ($k, $v) = each %todo) {
		1467	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1468	if exists $v->{meta}{mandatory};
		1469	}
		1470	}
		1471	}
1038	}	1472	};
1039	}	1473	}
1040		1474
1041	#############################################################################	1475	#############################################################################
1042	# load/save/clean perl data associated with a map
1043		1476
1044	*cf::mapsupport::on_clean = sub {	1477	=back
		1478
		1479	=head2 CORE EXTENSIONS
		1480
		1481	Functions and methods that extend core deliantra objects.
		1482
		1483	=cut
		1484
		1485	package cf::player;
		1486
		1487	use Coro::AIO;
		1488
		1489	=head3 cf::player
		1490
		1491	=over 4
		1492
		1493	=item cf::player::num_playing
		1494
		1495	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1496
		1497	=cut
		1498
		1499	sub num_playing {
		1500	scalar grep
		1501	$_->ob->map
		1502	&& !$_->hidden
		1503	&& !$_->ob->flag (cf::FLAG_WIZ),
		1504	cf::player::list
		1505	}
		1506
		1507	=item cf::player::find $login
		1508
		1509	Returns the given player object, loading it if necessary (might block).
		1510
		1511	=cut
		1512
		1513	sub playerdir($) {
		1514	"$PLAYERDIR/"
		1515	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1516	}
		1517
		1518	sub path($) {
		1519	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1520
		1521	(playerdir $login) . "/playerdata"
		1522	}
		1523
		1524	sub find_active($) {
		1525	$cf::PLAYER{$_[0]}
		1526	and $cf::PLAYER{$_[0]}->active
		1527	and $cf::PLAYER{$_[0]}
		1528	}
		1529
		1530	sub exists($) {
1045	my ($map) = @_;	1531	my ($login) = @_;
1046		1532
1047	my $path = $map->tmpname;	1533	$cf::PLAYER{$login}
1048	defined $path or return;	1534	or !aio_stat path $login
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}	1535	}
1061		1536
1062	# TODO: compatibility cruft, remove when no longer needed	1537	sub find($) {
		1538	return $cf::PLAYER{$_[0]} || do {
		1539	my $login = $_[0];
		1540
		1541	my $guard = cf::lock_acquire "user_find:$login";
		1542
		1543	$cf::PLAYER{$_[0]} || do {
		1544	# rename old playerfiles to new ones
		1545	#TODO: remove when no longer required
		1546	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1547	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1548	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1549	aio_unlink +(playerdir $login) . "/$login.pl";
		1550
		1551	my $f = new_from_file cf::object::thawer path $login
		1552	or return;
		1553
		1554	my $pl = cf::player::load_pl $f
		1555	or return;
		1556
		1557	local $cf::PLAYER_LOADING{$login} = $pl;
		1558	$f->resolve_delayed_derefs;
		1559	$cf::PLAYER{$login} = $pl
		1560	}
		1561	}
		1562	}
		1563
1063	cf::player->attach (	1564	cf::player->attach (
1064	on_load => sub {	1565	on_load => sub {
1065	my ($pl, $path) = @_;	1566	my ($pl, $path) = @_;
1066		1567
1067	for my $o (all_objects $pl->ob) {	1568	# restore slots saved in save, below
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1569	my $slots = delete $pl->{_slots};
1069	$o->set_ob_key_value ("_perl_data");
1070		1570
1071	%$o = %{ Storable::thaw pack "H*", $value };	1571	$pl->ob->current_weapon ($slots->[0]);
1072	}	1572	$pl->combat_ob ($slots->[1]);
1073	}	1573	$pl->ranged_ob ($slots->[2]);
1074	},	1574	},
1075	);	1575	);
1076		1576
1077	#############################################################################	1577	sub save($) {
		1578	my ($pl) = @_;
1078		1579
1079	=head2 CORE EXTENSIONS	1580	return if $pl->{deny_save};
1080		1581
1081	Functions and methods that extend core crossfire objects.	1582	my $path = path $pl;
		1583	my $guard = cf::lock_acquire "user_save:$path";
1082		1584
1083	=head3 cf::player	1585	return if $pl->{deny_save};
		1586
		1587	aio_mkdir playerdir $pl, 0770;
		1588	$pl->{last_save} = $cf::RUNTIME;
		1589
		1590	cf::get_slot 0.01;
		1591
		1592	# save slots, to be restored later
		1593	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1594
		1595	$pl->save_pl ($path);
		1596	cf::cede_to_tick;
		1597	}
		1598
		1599	sub new($) {
		1600	my ($login) = @_;
		1601
		1602	my $self = create;
		1603
		1604	$self->ob->name ($login);
		1605	$self->{deny_save} = 1;
		1606
		1607	$cf::PLAYER{$login} = $self;
		1608
		1609	$self
		1610	}
		1611
		1612	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1613
		1614	=cut
		1615
		1616	sub send_msg {
		1617	my $ns = shift->ns
		1618	or return;
		1619	$ns->send_msg (@_);
		1620	}
		1621
		1622	=item $pl->quit_character
		1623
		1624	Nukes the player without looking back. If logged in, the connection will
		1625	be destroyed. May block for a long time.
		1626
		1627	=cut
		1628
		1629	sub quit_character {
		1630	my ($pl) = @_;
		1631
		1632	my $name = $pl->ob->name;
		1633
		1634	$pl->{deny_save} = 1;
		1635	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1636
		1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1640	$pl->ob->check_score;
		1641	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1642	$pl->ns->destroy if $pl->ns;
		1643
		1644	my $path = playerdir $pl;
		1645	my $temp = "$path~$cf::RUNTIME~deleting~";
		1646	aio_rename $path, $temp;
		1647	delete $cf::PLAYER{$pl->ob->name};
		1648	$pl->destroy;
		1649
		1650	my $prefix = qr<^~\Q$name\E/>;
		1651
		1652	# nuke player maps
		1653	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1654
		1655	IO::AIO::aio_rmtree $temp;
		1656	}
		1657
		1658	=item $pl->kick
		1659
		1660	Kicks a player out of the game. This destroys the connection.
		1661
		1662	=cut
		1663
		1664	sub kick {
		1665	my ($pl, $kicker) = @_;
		1666
		1667	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1668	$pl->killer ("kicked");
		1669	$pl->ns->destroy;
		1670	}
		1671
		1672	=item cf::player::list_logins
		1673
		1674	Returns am arrayref of all valid playernames in the system, can take a
		1675	while and may block, so not sync_job-capable, ever.
		1676
		1677	=cut
		1678
		1679	sub list_logins {
		1680	my $dirs = aio_readdir $PLAYERDIR
		1681	or return [];
		1682
		1683	my @logins;
		1684
		1685	for my $login (@$dirs) {
		1686	my $path = path $login;
		1687
		1688	# a .pst is a dead give-away for a valid player
		1689	# if no pst file found, open and chekc for blocked users
		1690	if (aio_stat "$path.pst") {
		1691	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1692	aio_read $fh, 0, 512, my $buf, 0 or next;
		1693	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1694	}
		1695
		1696	utf8::decode $login;
		1697	push @logins, $login;
		1698	}
		1699
		1700	\@logins
		1701	}
		1702
		1703	=item $player->maps
		1704
		1705	=item cf::player::maps $login
		1706
		1707	Returns an arrayref of map paths that are private for this
		1708	player. May block.
		1709
		1710	=cut
		1711
		1712	sub maps($) {
		1713	my ($pl) = @_;
		1714
		1715	$pl = ref $pl ? $pl->ob->name : $pl;
		1716
		1717	my $files = aio_readdir playerdir $pl
		1718	or return;
		1719
		1720	my @paths;
		1721
		1722	for (@$files) {
		1723	utf8::decode $_;
		1724	next if /\.(?:pl|pst)$/;
		1725	next unless /^$PATH_SEP/o;
		1726
		1727	push @paths, cf::map::normalise "~$pl/$_";
		1728	}
		1729
		1730	\@paths
		1731	}
		1732
		1733	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1734
		1735	Expand deliantra pod fragments into protocol xml.
		1736
		1737	=item $player->ext_reply ($msgid, @msg)
		1738
		1739	Sends an ext reply to the player.
		1740
		1741	=cut
		1742
		1743	sub ext_reply($$@) {
		1744	my ($self, $id, @msg) = @_;
		1745
		1746	$self->ns->ext_reply ($id, @msg)
		1747	}
		1748
		1749	=item $player->ext_msg ($type, @msg)
		1750
		1751	Sends an ext event to the client.
		1752
		1753	=cut
		1754
		1755	sub ext_msg($$@) {
		1756	my ($self, $type, @msg) = @_;
		1757
		1758	$self->ns->ext_msg ($type, @msg);
		1759	}
		1760
		1761	=head3 cf::region
1084		1762
1085	=over 4	1763	=over 4
1086		1764
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut	1765	=cut
1092		1766
1093	sub cf::player::exists($) {	1767	package cf::region;
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097		1768
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)	1769	=item cf::region::find_by_path $path
1099		1770
1100	Sends an ext reply to the player.	1771	Tries to decuce the likely region for a map knowing only its path.
1101		1772
1102	=cut	1773	=cut
1103		1774
1104	sub cf::player::ext_reply($$$%) {	1775	sub find_by_path($) {
1105	my ($self, $id, %msg) = @_;	1776	my ($path) = @_;
1106		1777
1107	$msg{msgid} = $id;	1778	$path =~ s/^~[^\/]*//; # skip ~login
1108		1779
1109	$self->send ("ext " . to_json \%msg);	1780	my ($match, $specificity);
		1781
		1782	for my $region (list) {
		1783	if ($region->{match} && $path =~ $region->{match}) {
		1784	($match, $specificity) = ($region, $region->specificity)
		1785	if $region->specificity > $specificity;
		1786	}
		1787	}
		1788
		1789	$match
1110	}	1790	}
1111		1791
1112	=back	1792	=back
1113
1114		1793
1115	=head3 cf::map	1794	=head3 cf::map
1116		1795
1117	=over 4	1796	=over 4
1118		1797
…		…
1121	package cf::map;	1800	package cf::map;
1122		1801
1123	use Fcntl;	1802	use Fcntl;
1124	use Coro::AIO;	1803	use Coro::AIO;
1125		1804
		1805	use overload
		1806	'""' => \&as_string,
		1807	fallback => 1;
		1808
1126	our $MAX_RESET = 3600;	1809	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1810	our $DEFAULT_RESET = 3000;
1128		1811
1129	sub generate_random_map {	1812	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1813	my ($self, $rmp) = @_;
		1814
		1815	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1131		1816
1132	# mit "rum" bekleckern, nicht	1817	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1818	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1819	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1820	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1821	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1822	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1823	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1824	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1825	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1826	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1827	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1828	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1829	(cf::region::find $rmp->{region}), $rmp->{custom}
		1830	)
1146	}	1831	}
1147		1832
1148	# and all this just because we cannot iterate over	1833	=item cf::map->register ($regex, $prio)
1149	# all maps in C++...
1150	sub change_all_map_light {
1151	my ($change) = @_;
1152		1834
1153	$_->change_map_light ($change)	1835	Register a handler for the map path matching the given regex at the
1154	for grep $_->outdoor, values %cf::MAP;	1836	givne priority (higher is better, built-in handlers have priority 0, the
1155	}	1837	default).
1156		1838
1157	sub try_load_header($) {	1839	=cut
		1840
		1841	sub register {
		1842	my (undef, $regex, $prio) = @_;
		1843	my $pkg = caller;
		1844
		1845	no strict;
		1846	push @{"$pkg\::ISA"}, __PACKAGE__;
		1847
		1848	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1849	}
		1850
		1851	# also paths starting with '/'
		1852	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1853
		1854	sub thawer_merge {
		1855	my ($self, $merge) = @_;
		1856
		1857	# we have to keep some variables in memory intact
		1858	local $self->{path};
		1859	local $self->{load_path};
		1860
		1861	$self->SUPER::thawer_merge ($merge);
		1862	}
		1863
		1864	sub normalise {
1158	my ($path) = @_;	1865	my ($path, $base) = @_;
		1866
		1867	$path = "$path"; # make sure its a string
		1868
		1869	$path =~ s/\.map$//;
		1870
		1871	# map plan:
		1872	#
		1873	# /! non-realised random map exit (special hack!)
		1874	# {... are special paths that are not being touched
		1875	# ?xxx/... are special absolute paths
		1876	# ?random/... random maps
		1877	# /... normal maps
		1878	# ~user/... per-player map of a specific user
		1879
		1880	$path =~ s/$PATH_SEP/\//go;
		1881
		1882	# treat it as relative path if it starts with
		1883	# something that looks reasonable
		1884	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1885	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1886
		1887	$base =~ s{[^/]+/?$}{};
		1888	$path = "$base/$path";
		1889	}
		1890
		1891	for ($path) {
		1892	redo if s{//}{/};
		1893	redo if s{/\.?/}{/};
		1894	redo if s{/[^/]+/\.\./}{/};
		1895	}
		1896
		1897	$path
		1898	}
		1899
		1900	sub new_from_path {
		1901	my (undef, $path, $base) = @_;
		1902
		1903	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1904
		1905	$path = normalise $path, $base;
		1906
		1907	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1908	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1909	my $self = bless cf::map::new, $pkg;
		1910	$self->{path} = $path; $self->path ($path);
		1911	$self->init; # pass $1 etc.
		1912	return $self;
		1913	}
		1914	}
		1915
		1916	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1917	()
		1918	}
		1919
		1920	sub init {
		1921	my ($self) = @_;
		1922
		1923	$self
		1924	}
		1925
		1926	sub as_string {
		1927	my ($self) = @_;
		1928
		1929	"$self->{path}"
		1930	}
		1931
		1932	# the displayed name, this is a one way mapping
		1933	sub visible_name {
		1934	&as_string
		1935	}
		1936
		1937	# the original (read-only) location
		1938	sub load_path {
		1939	my ($self) = @_;
		1940
		1941	"$MAPDIR/$self->{path}.map"
		1942	}
		1943
		1944	# the temporary/swap location
		1945	sub save_path {
		1946	my ($self) = @_;
		1947
		1948	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1949	"$TMPDIR/$path.map"
		1950	}
		1951
		1952	# the unique path, undef == no special unique path
		1953	sub uniq_path {
		1954	my ($self) = @_;
		1955
		1956	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1957	"$UNIQUEDIR/$path"
		1958	}
		1959
		1960	sub decay_objects {
		1961	my ($self) = @_;
		1962
		1963	return if $self->{deny_reset};
		1964
		1965	$self->do_decay_objects;
		1966	}
		1967
		1968	sub unlink_save {
		1969	my ($self) = @_;
		1970
		1971	utf8::encode (my $save = $self->save_path);
		1972	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1973	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1974	}
		1975
		1976	sub load_header_from($) {
		1977	my ($self, $path) = @_;
1159		1978
1160	utf8::encode $path;	1979	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1980	my $f = new_from_file cf::object::thawer $path
1162	or return;	1981	or return;
1163		1982
1164	my $map = cf::map::new	1983	$self->_load_header ($f)
1165	or return;	1984	or return;
1166		1985
1167	# for better error messages only, will be overwritten	1986	local $MAP_LOADING{$self->{path}} = $self;
1168	$map->path ($path);	1987	$f->resolve_delayed_derefs;
1169		1988
1170	$map->load_header ($path)	1989	$self->{load_path} = $path;
		1990
		1991	1
		1992	}
		1993
		1994	sub load_header_orig {
		1995	my ($self) = @_;
		1996
		1997	$self->load_header_from ($self->load_path)
		1998	}
		1999
		2000	sub load_header_temp {
		2001	my ($self) = @_;
		2002
		2003	$self->load_header_from ($self->save_path)
		2004	}
		2005
		2006	sub prepare_temp {
		2007	my ($self) = @_;
		2008
		2009	$self->last_access ((delete $self->{last_access})
		2010	|| $cf::RUNTIME); #d#
		2011	# safety
		2012	$self->{instantiate_time} = $cf::RUNTIME
		2013	if $self->{instantiate_time} > $cf::RUNTIME;
		2014	}
		2015
		2016	sub prepare_orig {
		2017	my ($self) = @_;
		2018
		2019	$self->{load_original} = 1;
		2020	$self->{instantiate_time} = $cf::RUNTIME;
		2021	$self->last_access ($cf::RUNTIME);
		2022	$self->instantiate;
		2023	}
		2024
		2025	sub load_header {
		2026	my ($self) = @_;
		2027
		2028	if ($self->load_header_temp) {
		2029	$self->prepare_temp;
		2030	} else {
		2031	$self->load_header_orig
1171	or return;	2032	or return;
		2033	$self->prepare_orig;
		2034	}
1172		2035
1173	$map->{load_path} = $path;	2036	$self->{deny_reset} = 1
		2037	if $self->no_reset;
1174		2038
1175	$map	2039	$self->default_region (cf::region::find_by_path $self->{path})
		2040	unless $self->default_region;
		2041
		2042	1
1176	}	2043	}
1177		2044
1178	sub find;	2045	sub find;
1179	sub find {	2046	sub find {
1180	my ($path, $origin) = @_;	2047	my ($path, $origin) = @_;
1181		2048
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	2049	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		2050
1187	cf::lock_wait "map_find:$key";	2051	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1188
1189	$cf::MAP{$key} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	2052	my $guard2 = cf::lock_acquire "map_find:$path";
1191		2053
1192	# do it the slow way	2054	$cf::MAP{$path} || do {
1193	my $map = try_load_header $path->save_path;	2055	my $map = new_from_path cf::map $path
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	2056	or return;
1211		2057
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	2058	$map->{last_save} = $cf::RUNTIME;
1224		2059
1225	Coro::cede;	2060	$map->load_header
		2061	or return;
1226		2062
1227	if ($map->should_reset) {	2063	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2064	# doing this can freeze the server in a sync job, obviously
		2065	#$cf::WAIT_FOR_TICK->wait;
		2066	undef $guard2;
		2067	undef $guard1;
1228	$map->reset;	2068	$map->reset;
1229	undef $guard;
1230	$map = find $path	2069	return find $path;
1231	or return;
1232	}	2070	}
1233		2071
1234	$cf::MAP{$key} = $map	2072	$cf::MAP{$path} = $map
1235	}	2073	}
1236	}	2074	}
		2075
		2076	sub pre_load { }
		2077	#sub post_load { } # XS
1237		2078
1238	sub load {	2079	sub load {
1239	my ($self) = @_;	2080	my ($self) = @_;
1240		2081
		2082	local $self->{deny_reset} = 1; # loading can take a long time
		2083
1241	my $path = $self->{path};	2084	my $path = $self->{path};
		2085
		2086	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2087	my $guard = cf::lock_acquire "map_data:$path";
1243		2088
		2089	return unless $self->valid;
1244	return if $self->in_memory != cf::MAP_SWAPPED;	2090	return unless $self->in_memory == cf::MAP_SWAPPED;
1245		2091
1246	$self->in_memory (cf::MAP_LOADING);	2092	$self->in_memory (cf::MAP_LOADING);
1247		2093
1248	$self->alloc;	2094	$self->alloc;
1249	$self->load_objects ($self->{load_path}, 1)	2095
		2096	$self->pre_load;
		2097	cf::cede_to_tick;
		2098
		2099	my $f = new_from_file cf::object::thawer $self->{load_path};
		2100	$f->skip_block;
		2101	$self->_load_objects ($f)
1250	or return;	2102	or return;
1251		2103
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2104	$self->post_load_original
1253	if delete $self->{load_original};	2105	if delete $self->{load_original};
1254		2106
1255	if (my $uniq = $path->uniq_path) {	2107	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	2108	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	2109	unless (aio_stat $uniq) {
		2110	if (my $f = new_from_file cf::object::thawer $uniq) {
1258	$self->clear_unique_items;	2111	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	2112	$self->_load_objects ($f);
		2113	$f->resolve_delayed_derefs;
		2114	}
1260	}	2115	}
1261	}	2116	}
1262		2117
1263	Coro::cede;	2118	$f->resolve_delayed_derefs;
1264		2119
		2120	cf::cede_to_tick;
1265	# now do the right thing for maps	2121	# now do the right thing for maps
1266	$self->link_multipart_objects;	2122	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	2123	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	2124	unless $self->difficulty;
		2125	cf::cede_to_tick;
		2126
		2127	unless ($self->{deny_activate}) {
		2128	$self->decay_objects;
		2129	$self->fix_auto_apply;
		2130	$self->update_buttons;
		2131	cf::cede_to_tick;
1278	$self->activate;	2132	$self->activate;
1279	}	2133	}
1280		2134
1281	Coro::cede;	2135	$self->{last_save} = $cf::RUNTIME;
		2136	$self->last_access ($cf::RUNTIME);
1282		2137
1283	$self->in_memory (cf::MAP_IN_MEMORY);	2138	$self->in_memory (cf::MAP_ACTIVE);
		2139	}
		2140
		2141	$self->post_load;
		2142	}
		2143
		2144	# customize the map for a given player, i.e.
		2145	# return the _real_ map. used by e.g. per-player
		2146	# maps to change the path to ~playername/mappath
		2147	sub customise_for {
		2148	my ($self, $ob) = @_;
		2149
		2150	return find "~" . $ob->name . "/" . $self->{path}
		2151	if $self->per_player;
		2152
		2153	# return find "?party/" . $ob->name . "/" . $self->{path}
		2154	# if $self->per_party;
		2155
		2156	$self
		2157	}
		2158
		2159	# find and load all maps in the 3x3 area around a map
		2160	sub load_neighbours {
		2161	my ($map) = @_;
		2162
		2163	my @neigh; # diagonal neighbours
		2164
		2165	for (0 .. 3) {
		2166	my $neigh = $map->tile_path ($_)
		2167	or next;
		2168	$neigh = find $neigh, $map
		2169	or next;
		2170	$neigh->load;
		2171
		2172	# now find the diagonal neighbours
		2173	push @neigh,
		2174	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2175	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2176	}
		2177
		2178	for (grep defined $_->[0], @neigh) {
		2179	my ($path, $origin) = @$_;
		2180	my $neigh = find $path, $origin
		2181	or next;
		2182	$neigh->load;
		2183	}
1284	}	2184	}
1285		2185
1286	sub find_sync {	2186	sub find_sync {
1287	my ($path, $origin) = @_;	2187	my ($path, $origin) = @_;
1288		2188
1289	cf::sync_job { cf::map::find $path, $origin }	2189	cf::sync_job { find $path, $origin }
1290	}	2190	}
1291		2191
1292	sub do_load_sync {	2192	sub do_load_sync {
1293	my ($map) = @_;	2193	my ($map) = @_;
1294		2194
		2195	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2196	if $Coro::current == $Coro::main;
		2197
1295	cf::sync_job { $map->load };	2198	cf::sync_job { $map->load };
		2199	}
		2200
		2201	our %MAP_PREFETCH;
		2202	our $MAP_PREFETCHER = undef;
		2203
		2204	sub find_async {
		2205	my ($path, $origin, $load) = @_;
		2206
		2207	$path = normalise $path, $origin && $origin->{path};
		2208
		2209	if (my $map = $cf::MAP{$path}) {
		2210	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2211	}
		2212
		2213	$MAP_PREFETCH{$path} |= $load;
		2214
		2215	$MAP_PREFETCHER ||= cf::async {
		2216	$Coro::current->{desc} = "map prefetcher";
		2217
		2218	while (%MAP_PREFETCH) {
		2219	while (my ($k, $v) = each %MAP_PREFETCH) {
		2220	if (my $map = find $k) {
		2221	$map->load if $v;
		2222	}
		2223
		2224	delete $MAP_PREFETCH{$k};
		2225	}
		2226	}
		2227	undef $MAP_PREFETCHER;
		2228	};
		2229	$MAP_PREFETCHER->prio (6);
		2230
		2231	()
		2232	}
		2233
		2234	# common code, used by both ->save and ->swapout
		2235	sub _save {
		2236	my ($self) = @_;
		2237
		2238	$self->{last_save} = $cf::RUNTIME;
		2239
		2240	return unless $self->dirty;
		2241
		2242	my $save = $self->save_path; utf8::encode $save;
		2243	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2244
		2245	$self->{load_path} = $save;
		2246
		2247	return if $self->{deny_save};
		2248
		2249	local $self->{last_access} = $self->last_access;#d#
		2250
		2251	cf::async {
		2252	$Coro::current->{desc} = "map player save";
		2253	$_->contr->save for $self->players;
		2254	};
		2255
		2256	cf::get_slot 0.02;
		2257
		2258	if ($uniq) {
		2259	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2260	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2261	} else {
		2262	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2263	}
1296	}	2264	}
1297		2265
1298	sub save {	2266	sub save {
1299	my ($self) = @_;	2267	my ($self) = @_;
1300		2268
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	2269	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2270
1303	$self->{last_save} = $cf::RUNTIME;	2271	$self->_save;
1304
1305	return unless $self->dirty;
1306
1307	my $save = $self->{path}->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1309
1310	$self->{load_path} = $save;
1311
1312	return if $self->{deny_save};
1313
1314	local $self->{last_access} = $self->last_access;#d#
1315
1316	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}
1322	}	2272	}
1323		2273
1324	sub swap_out {	2274	sub swap_out {
1325	my ($self) = @_;	2275	my ($self) = @_;
1326		2276
1327	# save first because save cedes
1328	$self->save;
1329
1330	my $lock = cf::lock_acquire "map_data:" . $self->path;	2277	my $lock = cf::lock_acquire "map_data:$self->{path}";
1331		2278
		2279	return if $self->in_memory != cf::MAP_ACTIVE;
		2280	return if $self->{deny_save};
1332	return if $self->players;	2281	return if $self->players;
1333	return if $self->in_memory != cf::MAP_IN_MEMORY;
1334	return if $self->{deny_save};
1335		2282
		2283	# first deactivate the map and "unlink" it from the core
		2284	$self->deactivate;
		2285	$_->clear_links_to ($self) for values %cf::MAP;
		2286	$self->in_memory (cf::MAP_SWAPPED);
		2287
		2288	# then atomically save
		2289	$self->_save;
		2290
		2291	# then free the map
1336	$self->clear;	2292	$self->clear;
1337	$self->in_memory (cf::MAP_SWAPPED);
1338	}	2293	}
1339		2294
1340	sub reset_at {	2295	sub reset_at {
1341	my ($self) = @_;	2296	my ($self) = @_;
1342		2297
1343	# TODO: safety, remove and allow resettable per-player maps	2298	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};
1345	return 1e99 if $self->{deny_reset};	2299	return 1e99 if $self->{deny_reset};
1346		2300
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2301	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2302	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		2303
…		…
1354	my ($self) = @_;	2308	my ($self) = @_;
1355		2309
1356	$self->reset_at <= $cf::RUNTIME	2310	$self->reset_at <= $cf::RUNTIME
1357	}	2311	}
1358		2312
1359	sub unlink_save {
1360	my ($self) = @_;
1361
1362	utf8::encode (my $save = $self->{path}->save_path);
1363	aioreq_pri 3; IO::AIO::aio_unlink $save;
1364	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1365	}
1366
1367	sub rename {
1368	my ($self, $new_path) = @_;
1369
1370	$self->unlink_save;
1371
1372	delete $cf::MAP{$self->path};
1373	$self->{path} = new cf::path $new_path;
1374	$self->path ($self->{path}->as_string);
1375	$cf::MAP{$self->path} = $self;
1376
1377	$self->save;
1378	}
1379
1380	sub reset {	2313	sub reset {
1381	my ($self) = @_;	2314	my ($self) = @_;
1382		2315
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	2316	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		2317
1385	return if $self->players;	2318	return if $self->players;
1386	return if $self->{path}{user_rel};#d#
1387		2319
1388	warn "resetting map ", $self->path;#d#	2320	warn "resetting map ", $self->path, "\n";
		2321
		2322	$self->in_memory (cf::MAP_SWAPPED);
		2323
		2324	# need to save uniques path
		2325	unless ($self->{deny_save}) {
		2326	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2327
		2328	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2329	if $uniq;
		2330	}
1389		2331
1390	delete $cf::MAP{$self->path};	2332	delete $cf::MAP{$self->path};
1391		2333
		2334	$self->deactivate;
1392	$_->clear_links_to ($self) for values %cf::MAP;	2335	$_->clear_links_to ($self) for values %cf::MAP;
		2336	$self->clear;
1393		2337
1394	$self->unlink_save;	2338	$self->unlink_save;
1395	$self->destroy;	2339	$self->destroy;
1396	}	2340	}
1397		2341
1398	my $nuke_counter = "aaaa";	2342	my $nuke_counter = "aaaa";
1399		2343
1400	sub nuke {	2344	sub nuke {
1401	my ($self) = @_;	2345	my ($self) = @_;
1402		2346
		2347	{
		2348	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2349
		2350	delete $cf::MAP{$self->path};
		2351
		2352	$self->unlink_save;
		2353
		2354	bless $self, "cf::map::wrap";
		2355	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	2356	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	2357	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	2358	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2359
		2360	$cf::MAP{$self->path} = $self;
		2361	}
		2362
1406	$self->reset; # polite request, might not happen	2363	$self->reset; # polite request, might not happen
1407	}	2364	}
1408		2365
1409	sub customise_for {	2366	=item $maps = cf::map::tmp_maps
1410	my ($map, $ob) = @_;
1411		2367
1412	if ($map->per_player) {	2368	Returns an arrayref with all map paths of currently instantiated and saved
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2369	maps. May block.
		2370
		2371	=cut
		2372
		2373	sub tmp_maps() {
1414	}	2374	[
1415		2375	map {
1416	$map	2376	utf8::decode $_;
		2377	/\.map$/
		2378	? normalise $_
		2379	: ()
		2380	} @{ aio_readdir $TMPDIR or [] }
		2381	]
1417	}	2382	}
1418		2383
1419	sub emergency_save {	2384	=item $maps = cf::map::random_maps
1420	my $freeze_guard = cf::freeze_mainloop;
1421		2385
1422	warn "enter emergency map save\n";	2386	Returns an arrayref with all map paths of currently instantiated and saved
		2387	random maps. May block.
1423		2388
1424	cf::sync_job {	2389	=cut
1425	warn "begin emergency map save\n";	2390
1426	$_->save for values %cf::MAP;	2391	sub random_maps() {
		2392	[
		2393	map {
		2394	utf8::decode $_;
		2395	/\.map$/
		2396	? normalise "?random/$_"
		2397	: ()
		2398	} @{ aio_readdir $RANDOMDIR or [] }
		2399	]
		2400	}
		2401
		2402	=item cf::map::unique_maps
		2403
		2404	Returns an arrayref of paths of all shared maps that have
		2405	instantiated unique items. May block.
		2406
		2407	=cut
		2408
		2409	sub unique_maps() {
		2410	[
		2411	map {
		2412	utf8::decode $_;
		2413	s/\.map$//; # TODO future compatibility hack
		2414	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2415	? ()
		2416	: normalise $_
		2417	} @{ aio_readdir $UNIQUEDIR or [] }
		2418	]
		2419	}
		2420
		2421	=item cf::map::static_maps
		2422
		2423	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2424	file in the shared directory excluding F</styles> and F</editor>). May
		2425	block.
		2426
		2427	=cut
		2428
		2429	sub static_maps() {
		2430	my @dirs = "";
		2431	my @maps;
		2432
		2433	while (@dirs) {
		2434	my $dir = shift @dirs;
		2435
		2436	next if $dir eq "/styles" || $dir eq "/editor";
		2437
		2438	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2439	or return;
		2440
		2441	for (@$files) {
		2442	s/\.map$// or next;
		2443	utf8::decode $_;
		2444	push @maps, "$dir/$_";
		2445	}
		2446
		2447	push @dirs, map "$dir/$_", @$dirs;
1427	};	2448	}
1428		2449
1429	warn "end emergency map save\n";	2450	\@maps
		2451	}
		2452
		2453	=back
		2454
		2455	=head3 cf::object
		2456
		2457	=cut
		2458
		2459	package cf::object;
		2460
		2461	=over 4
		2462
		2463	=item $ob->inv_recursive
		2464
		2465	Returns the inventory of the object I<and> their inventories, recursively,
		2466	but I<not> the object itself.
		2467
		2468	=cut
		2469
		2470	sub inv_recursive_;
		2471	sub inv_recursive_ {
		2472	map { $_, inv_recursive_ $_->inv } @_
		2473	}
		2474
		2475	sub inv_recursive {
		2476	inv_recursive_ inv $_[0]
		2477	}
		2478
		2479	=item $ref = $ob->ref
		2480
		2481	Creates and returns a persistent reference to an object that can be stored as a string.
		2482
		2483	=item $ob = cf::object::deref ($refstring)
		2484
		2485	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2486	even if the object actually exists. May block.
		2487
		2488	=cut
		2489
		2490	sub deref {
		2491	my ($ref) = @_;
		2492
		2493	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2494	my ($uuid, $name) = ($1, $2);
		2495	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2496	or return;
		2497	$pl->ob->uuid eq $uuid
		2498	or return;
		2499
		2500	$pl->ob
		2501	} else {
		2502	warn "$ref: cannot resolve object reference\n";
		2503	undef
		2504	}
1430	}	2505	}
1431		2506
1432	package cf;	2507	package cf;
1433		2508
1434	=back	2509	=back
1435
1436		2510
1437	=head3 cf::object::player	2511	=head3 cf::object::player
1438		2512
1439	=over 4	2513	=over 4
1440		2514
…		…
1443	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2517	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1444	can be C<undef>. Does the right thing when the player is currently in a	2518	can be C<undef>. Does the right thing when the player is currently in a
1445	dialogue with the given NPC character.	2519	dialogue with the given NPC character.
1446		2520
1447	=cut	2521	=cut
		2522
		2523	our $SAY_CHANNEL = {
		2524	id => "say",
		2525	title => "Map",
		2526	reply => "say ",
		2527	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2528	};
		2529
		2530	our $CHAT_CHANNEL = {
		2531	id => "chat",
		2532	title => "Chat",
		2533	reply => "chat ",
		2534	tooltip => "Player chat and shouts, global to the server.",
		2535	};
1448		2536
1449	# rough implementation of a future "reply" method that works	2537	# rough implementation of a future "reply" method that works
1450	# with dialog boxes.	2538	# with dialog boxes.
1451	#TODO: the first argument must go, split into a $npc->reply_to ( method	2539	#TODO: the first argument must go, split into a $npc->reply_to ( method
1452	sub cf::object::player::reply($$$;$) {	2540	sub cf::object::player::reply($$$;$) {
…		…
1454		2542
1455	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2543	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1456		2544
1457	if ($self->{record_replies}) {	2545	if ($self->{record_replies}) {
1458	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2546	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2547
1459	} else {	2548	} else {
		2549	my $pl = $self->contr;
		2550
		2551	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2552	my $dialog = $pl->{npc_dialog};
		2553	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2554
		2555	} else {
1460	$msg = $npc->name . " says: $msg" if $npc;	2556	$msg = $npc->name . " says: $msg" if $npc;
1461	$self->message ($msg, $flags);	2557	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2558	}
1462	}	2559	}
		2560	}
		2561
		2562	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2563
		2564	=cut
		2565
		2566	sub cf::object::send_msg {
		2567	my $pl = shift->contr
		2568	or return;
		2569	$pl->send_msg (@_);
1463	}	2570	}
1464		2571
1465	=item $player_object->may ("access")	2572	=item $player_object->may ("access")
1466		2573
1467	Returns wether the given player is authorized to access resource "access"	2574	Returns wether the given player is authorized to access resource "access"
…		…
1480		2587
1481	=item $player_object->enter_link	2588	=item $player_object->enter_link
1482		2589
1483	Freezes the player and moves him/her to a special map (C<{link}>).	2590	Freezes the player and moves him/her to a special map (C<{link}>).
1484		2591
1485	The player should be reaosnably safe there for short amounts of time. You	2592	The player should be reasonably safe there for short amounts of time (e.g.
1486	I<MUST> call C<leave_link> as soon as possible, though.	2593	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2594	though, as the player cannot control the character while it is on the link
		2595	map.
		2596
		2597	Will never block.
1487		2598
1488	=item $player_object->leave_link ($map, $x, $y)	2599	=item $player_object->leave_link ($map, $x, $y)
1489		2600
1490	Moves the player out of the specila link map onto the given map. If the	2601	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	2602	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	2603	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	2604	fails, to the emergency map position.
1494		2605
1495	Might block.	2606	Might block.
1496		2607
1497	=cut	2608	=cut
		2609
		2610	sub link_map {
		2611	unless ($LINK_MAP) {
		2612	$LINK_MAP = cf::map::find "{link}"
		2613	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2614	$LINK_MAP->load;
		2615	}
		2616
		2617	$LINK_MAP
		2618	}
1498		2619
1499	sub cf::object::player::enter_link {	2620	sub cf::object::player::enter_link {
1500	my ($self) = @_;	2621	my ($self) = @_;
1501		2622
1502	$self->deactivate_recursive;	2623	$self->deactivate_recursive;
1503		2624
1504	return if $self->map == $LINK_MAP;	2625	++$self->{_link_recursion};
		2626
		2627	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		2628
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2629	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	2630	if $self->map && $self->map->{path} ne "{link}";
1508		2631
1509	$self->enter_map ($LINK_MAP, 20, 20);	2632	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1510	}	2633	}
1511		2634
1512	sub cf::object::player::leave_link {	2635	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	2636	my ($self, $map, $x, $y) = @_;
		2637
		2638	return unless $self->contr->active;
1514		2639
1515	my $link_pos = delete $self->{_link_pos};	2640	my $link_pos = delete $self->{_link_pos};
1516		2641
1517	unless ($map) {	2642	unless ($map) {
1518	# restore original map position	2643	# restore original map position
…		…
1529	($x, $y) = (-1, -1)	2654	($x, $y) = (-1, -1)
1530	unless (defined $x) && (defined $y);	2655	unless (defined $x) && (defined $y);
1531		2656
1532	# use -1 or undef as default coordinates, not 0, 0	2657	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	2658	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	2659	if $x <= 0 && $y <= 0;
1535		2660
1536	$map->load;	2661	$map->load;
		2662	$map->load_neighbours;
1537		2663
		2664	return unless $self->contr->active;
		2665
		2666	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2667	if ($self->enter_map ($map, $x, $y)) {
		2668	# entering was successful
		2669	delete $self->{_link_recursion};
		2670	# only activate afterwards, to support waiting in hooks
1538	$self->activate_recursive;	2671	$self->activate_recursive;
1539	$self->enter_map ($map, $x, $y);
1540	}
1541
1542	cf::player->attach (
1543	on_logout => sub {
1544	my ($pl) = @_;
1545
1546	# abort map switching before logout
1547	if ($pl->ob->{_link_pos}) {
1548	cf::sync_job {
1549	$pl->ob->leave_link
1550	};
1551	}
1552	},	2672	}
1553	on_login => sub {
1554	my ($pl) = @_;
1555		2673
1556	# try to abort aborted map switching on player login :)	2674	}
1557	# should happen only on crashes
1558	if ($pl->ob->{_link_pos}) {
1559	$pl->ob->enter_link;
1560	cf::async {
1561	# we need this sleep as the login has a concurrent enter_exit running
1562	# and this sleep increases chances of the player not ending up in scorn
1563	Coro::Timer::sleep 1;
1564	$pl->ob->leave_link;
1565	};
1566	}
1567	},
1568	);
1569		2675
1570	=item $player_object->goto ($path, $x, $y)	2676	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1571		2677
		2678	Moves the player to the given map-path and coordinates by first freezing
		2679	her, loading and preparing them map, calling the provided $check callback
		2680	that has to return the map if sucecssful, and then unfreezes the player on
		2681	the new (success) or old (failed) map position. In either case, $done will
		2682	be called at the end of this process.
		2683
		2684	Note that $check will be called with a potentially non-loaded map, so if
		2685	it needs a loaded map it has to call C<< ->load >>.
		2686
1572	=cut	2687	=cut
		2688
		2689	our $GOTOGEN;
1573		2690
1574	sub cf::object::player::goto {	2691	sub cf::object::player::goto {
1575	my ($self, $path, $x, $y) = @_;	2692	my ($self, $path, $x, $y, $check, $done) = @_;
		2693
		2694	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2695	warn "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2696	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2697	($path, $x, $y) = @$EMERGENCY_POSITION;
		2698	}
		2699
		2700	# do generation counting so two concurrent goto's will be executed in-order
		2701	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1576		2702
1577	$self->enter_link;	2703	$self->enter_link;
1578		2704
1579	(cf::async {	2705	(async {
1580	$path = new cf::path $path;	2706	$Coro::current->{desc} = "player::goto $path $x $y";
1581		2707
1582	my $map = cf::map::find $path->as_string;	2708	# *tag paths override both path and x|y
		2709	if ($path =~ /^\*(.*)$/) {
		2710	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2711	my $ob = $obs[rand @obs];
		2712
		2713	# see if we actually can go there
		2714	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2715	$ob = $obs[rand @obs];
		2716	} else {
		2717	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2718	}
		2719	# else put us there anyways for now #d#
		2720
		2721	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2722	} else {
		2723	($path, $x, $y) = (undef, undef, undef);
		2724	}
		2725	}
		2726
		2727	my $map = eval {
		2728	my $map = defined $path ? cf::map::find $path : undef;
		2729
		2730	if ($map) {
1583	$map = $map->customise_for ($self) if $map;	2731	$map = $map->customise_for ($self);
1584		2732	$map = $check->($map, $x, $y, $self) if $check && $map;
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	2733	} else {
1586	# if $map;
1587
1588	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2734	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2735	}
1589		2736
		2737	$map
		2738	};
		2739
		2740	if ($@) {
		2741	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2742	LOG llevError | logBacktrace, Carp::longmess $@;
		2743	}
		2744
		2745	if ($gen == $self->{_goto_generation}) {
		2746	delete $self->{_goto_generation};
1590	$self->leave_link ($map, $x, $y);	2747	$self->leave_link ($map, $x, $y);
		2748	}
		2749
		2750	$done->($self) if $done;
1591	})->prio (1);	2751	})->prio (1);
1592	}	2752	}
1593		2753
1594	=item $player_object->enter_exit ($exit_object)	2754	=item $player_object->enter_exit ($exit_object)
1595		2755
…		…
1597		2757
1598	sub parse_random_map_params {	2758	sub parse_random_map_params {
1599	my ($spec) = @_;	2759	my ($spec) = @_;
1600		2760
1601	my $rmp = { # defaults	2761	my $rmp = { # defaults
1602	xsize => 10,	2762	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	2763	ysize => (cf::rndm 15, 40),
		2764	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2765	#layout => string,
1604	};	2766	};
1605		2767
1606	for (split /\n/, $spec) {	2768	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	2769	my ($k, $v) = split /\s+/, $_, 2;
1608		2770
…		…
1620	# that depends on the exit object	2782	# that depends on the exit object
1621		2783
1622	my $rmp = parse_random_map_params $exit->msg;	2784	my $rmp = parse_random_map_params $exit->msg;
1623		2785
1624	if ($exit->map) {	2786	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	2787	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	2788	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	2789	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	2790	$rmp->{origin_y} = $exit->y;
		2791
		2792	$exit->map->touch;
1629	}	2793	}
1630		2794
1631	$rmp->{random_seed} ||= $exit->random_seed;	2795	$rmp->{random_seed} ||= $exit->random_seed;
1632		2796
1633	my $data = cf::to_json $rmp;	2797	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1634	my $md5 = Digest::MD5::md5_hex $data;	2798	my $md5 = Digest::MD5::md5_hex $data;
		2799	my $meta = "$RANDOMDIR/$md5.meta";
1635		2800
1636	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2801	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1637	aio_write $fh, 0, (length $data), $data, 0;	2802	aio_write $fh, 0, (length $data), $data, 0;
		2803	undef $fh;
		2804	aio_rename "$meta~", $meta;
1638		2805
		2806	my $slaying = "?random/$md5";
		2807
		2808	if ($exit->valid) {
1639	$exit->slaying ("?random/$md5");	2809	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	2810	$exit->msg (undef);
		2811	}
1641	}	2812	}
1642	}	2813	}
1643		2814
1644	sub cf::object::player::enter_exit {	2815	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	2816	my ($self, $exit) = @_;
1646		2817
1647	return unless $self->type == cf::PLAYER;	2818	return unless $self->type == cf::PLAYER;
1648		2819
1649	$self->enter_link;	2820	$self->enter_link;
1650		2821
1651	(cf::async {	2822	(async {
1652	$self->deactivate_recursive; # just to be sure	2823	$Coro::current->{desc} = "enter_exit";
		2824
1653	unless (eval {	2825	unless (eval {
		2826	$self->deactivate_recursive; # just to be sure
		2827
		2828	# random map handling
		2829	{
		2830	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2831
1654	prepare_random_map $exit	2832	prepare_random_map $exit
1655	if $exit->slaying eq "/!";	2833	if $exit->slaying eq "/!";
		2834	}
1656		2835
1657	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2836	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2837	my $x = $exit->stats->hp;
		2838	my $y = $exit->stats->sp;
1659		2839
		2840	$self->goto ($map, $x, $y);
		2841
		2842	# if exit is damned, update players death & WoR home-position
		2843	$self->contr->savebed ($map, $x, $y)
		2844	if $exit->flag (cf::FLAG_DAMNED);
		2845
1660	1;	2846	1
1661	}) {	2847	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	2848	$self->message ("Something went wrong deep within the deliantra server. "
1663	. "I'll try to bring you back to the map you were before. "	2849	. "I'll try to bring you back to the map you were before. "
1664	. "Please report this to the dungeon master",	2850	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	2851	cf::NDI_UNIQUE | cf::NDI_RED);
1666		2852
1667	warn "ERROR in enter_exit: $@";	2853	warn "ERROR in enter_exit: $@";
1668	$self->leave_link;	2854	$self->leave_link;
1669	}	2855	}
1670	})->prio (1);	2856	})->prio (1);
…		…
1683		2869
1684	sub cf::client::send_drawinfo {	2870	sub cf::client::send_drawinfo {
1685	my ($self, $text, $flags) = @_;	2871	my ($self, $text, $flags) = @_;
1686		2872
1687	utf8::encode $text;	2873	utf8::encode $text;
1688	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2874	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1689	}	2875	}
1690		2876
		2877	=item $client->send_big_packet ($pkt)
		2878
		2879	Like C<send_packet>, but tries to compress large packets, and fragments
		2880	them as required.
		2881
		2882	=cut
		2883
		2884	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2885
		2886	sub cf::client::send_big_packet {
		2887	my ($self, $pkt) = @_;
		2888
		2889	# try lzf for large packets
		2890	$pkt = "lzf " . Compress::LZF::compress $pkt
		2891	if 1024 <= length $pkt and $self->{can_lzf};
		2892
		2893	# split very large packets
		2894	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2895	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2896	$pkt = "frag";
		2897	}
		2898
		2899	$self->send_packet ($pkt);
		2900	}
		2901
		2902	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2903
		2904	Send a drawinfo or msg packet to the client, formatting the msg for the
		2905	client if neccessary. C<$type> should be a string identifying the type of
		2906	the message, with C<log> being the default. If C<$color> is negative, suppress
		2907	the message unless the client supports the msg packet.
		2908
		2909	=cut
		2910
		2911	# non-persistent channels (usually the info channel)
		2912	our %CHANNEL = (
		2913	"c/motd" => {
		2914	id => "infobox",
		2915	title => "MOTD",
		2916	reply => undef,
		2917	tooltip => "The message of the day",
		2918	},
		2919	"c/identify" => {
		2920	id => "infobox",
		2921	title => "Identify",
		2922	reply => undef,
		2923	tooltip => "Items recently identified",
		2924	},
		2925	"c/examine" => {
		2926	id => "infobox",
		2927	title => "Examine",
		2928	reply => undef,
		2929	tooltip => "Signs and other items you examined",
		2930	},
		2931	"c/shopinfo" => {
		2932	id => "infobox",
		2933	title => "Shop Info",
		2934	reply => undef,
		2935	tooltip => "What your bargaining skill tells you about the shop",
		2936	},
		2937	"c/book" => {
		2938	id => "infobox",
		2939	title => "Book",
		2940	reply => undef,
		2941	tooltip => "The contents of a note or book",
		2942	},
		2943	"c/lookat" => {
		2944	id => "infobox",
		2945	title => "Look",
		2946	reply => undef,
		2947	tooltip => "What you saw there",
		2948	},
		2949	"c/who" => {
		2950	id => "infobox",
		2951	title => "Players",
		2952	reply => undef,
		2953	tooltip => "Shows players who are currently online",
		2954	},
		2955	"c/body" => {
		2956	id => "infobox",
		2957	title => "Body Parts",
		2958	reply => undef,
		2959	tooltip => "Shows which body parts you posess and are available",
		2960	},
		2961	"c/statistics" => {
		2962	id => "infobox",
		2963	title => "Statistics",
		2964	reply => undef,
		2965	tooltip => "Shows your primary statistics",
		2966	},
		2967	"c/skills" => {
		2968	id => "infobox",
		2969	title => "Skills",
		2970	reply => undef,
		2971	tooltip => "Shows your experience per skill and item power",
		2972	},
		2973	"c/shopitems" => {
		2974	id => "infobox",
		2975	title => "Shop Items",
		2976	reply => undef,
		2977	tooltip => "Shows the items currently for sale in this shop",
		2978	},
		2979	"c/resistances" => {
		2980	id => "infobox",
		2981	title => "Resistances",
		2982	reply => undef,
		2983	tooltip => "Shows your resistances",
		2984	},
		2985	"c/pets" => {
		2986	id => "infobox",
		2987	title => "Pets",
		2988	reply => undef,
		2989	tooltip => "Shows information abotu your pets/a specific pet",
		2990	},
		2991	"c/perceiveself" => {
		2992	id => "infobox",
		2993	title => "Perceive Self",
		2994	reply => undef,
		2995	tooltip => "You gained detailed knowledge about yourself",
		2996	},
		2997	"c/uptime" => {
		2998	id => "infobox",
		2999	title => "Uptime",
		3000	reply => undef,
		3001	tooltip => "How long the server has been running since last restart",
		3002	},
		3003	"c/mapinfo" => {
		3004	id => "infobox",
		3005	title => "Map Info",
		3006	reply => undef,
		3007	tooltip => "Information related to the maps",
		3008	},
		3009	"c/party" => {
		3010	id => "party",
		3011	title => "Party",
		3012	reply => "gsay ",
		3013	tooltip => "Messages and chat related to your party",
		3014	},
		3015	"c/death" => {
		3016	id => "death",
		3017	title => "Death",
		3018	reply => undef,
		3019	tooltip => "Reason for and more info about your most recent death",
		3020	},
		3021	"c/say" => $SAY_CHANNEL,
		3022	"c/chat" => $CHAT_CHANNEL,
		3023	);
		3024
		3025	sub cf::client::send_msg {
		3026	my ($self, $channel, $msg, $color, @extra) = @_;
		3027
		3028	$msg = $self->pl->expand_cfpod ($msg)
		3029	unless $color & cf::NDI_VERBATIM;
		3030
		3031	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3032
		3033	# check predefined channels, for the benefit of C
		3034	if ($CHANNEL{$channel}) {
		3035	$channel = $CHANNEL{$channel};
		3036
		3037	$self->ext_msg (channel_info => $channel);
		3038	$channel = $channel->{id};
		3039
		3040	} elsif (ref $channel) {
		3041	# send meta info to client, if not yet sent
		3042	unless (exists $self->{channel}{$channel->{id}}) {
		3043	$self->{channel}{$channel->{id}} = $channel;
		3044	$self->ext_msg (channel_info => $channel);
		3045	}
		3046
		3047	$channel = $channel->{id};
		3048	}
		3049
		3050	return unless @extra || length $msg;
		3051
		3052	# default colour, mask it out
		3053	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3054	if $color & cf::NDI_DEF;
		3055
		3056	my $pkt = "msg "
		3057	. $self->{json_coder}->encode (
		3058	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3059	);
		3060
		3061	$self->send_big_packet ($pkt);
		3062	}
		3063
		3064	=item $client->ext_msg ($type, @msg)
		3065
		3066	Sends an ext event to the client.
		3067
		3068	=cut
		3069
		3070	sub cf::client::ext_msg($$@) {
		3071	my ($self, $type, @msg) = @_;
		3072
		3073	if ($self->extcmd == 2) {
		3074	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3075	} elsif ($self->extcmd == 1) { # TODO: remove
		3076	push @msg, msgtype => "event_$type";
		3077	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3078	}
		3079	}
		3080
		3081	=item $client->ext_reply ($msgid, @msg)
		3082
		3083	Sends an ext reply to the client.
		3084
		3085	=cut
		3086
		3087	sub cf::client::ext_reply($$@) {
		3088	my ($self, $id, @msg) = @_;
		3089
		3090	if ($self->extcmd == 2) {
		3091	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3092	} elsif ($self->extcmd == 1) {
		3093	#TODO: version 1, remove
		3094	unshift @msg, msgtype => "reply", msgid => $id;
		3095	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3096	}
		3097	}
1691		3098
1692	=item $success = $client->query ($flags, "text", \&cb)	3099	=item $success = $client->query ($flags, "text", \&cb)
1693		3100
1694	Queues a query to the client, calling the given callback with	3101	Queues a query to the client, calling the given callback with
1695	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3102	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1696	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3103	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1697		3104
1698	Queries can fail, so check the return code. Or don't, as queries will become	3105	Queries can fail, so check the return code. Or don't, as queries will
1699	reliable at some point in the future.	3106	become reliable at some point in the future.
1700		3107
1701	=cut	3108	=cut
1702		3109
1703	sub cf::client::query {	3110	sub cf::client::query {
1704	my ($self, $flags, $text, $cb) = @_;	3111	my ($self, $flags, $text, $cb) = @_;
…		…
1712	utf8::encode $text;	3119	utf8::encode $text;
1713	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3120	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1714		3121
1715	$self->send_packet ($self->{query_queue}[0][0])	3122	$self->send_packet ($self->{query_queue}[0][0])
1716	if @{ $self->{query_queue} } == 1;	3123	if @{ $self->{query_queue} } == 1;
		3124
		3125	1
1717	}	3126	}
1718		3127
1719	cf::client->attach (	3128	cf::client->attach (
		3129	on_connect => sub {
		3130	my ($ns) = @_;
		3131
		3132	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3133	},
1720	on_reply => sub {	3134	on_reply => sub {
1721	my ($ns, $msg) = @_;	3135	my ($ns, $msg) = @_;
1722		3136
1723	# this weird shuffling is so that direct followup queries	3137	# this weird shuffling is so that direct followup queries
1724	# get handled first	3138	# get handled first
1725	my $queue = delete $ns->{query_queue}	3139	my $queue = delete $ns->{query_queue}
1726	or return; # be conservative, not sure how that can happen, but we saw a crash here	3140	or return; # be conservative, not sure how that can happen, but we saw a crash here
1727		3141
1728	(shift @$queue)->[1]->($msg);	3142	(shift @$queue)->[1]->($msg);
		3143	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		3144
1730	push @{ $ns->{query_queue} }, @$queue;	3145	push @{ $ns->{query_queue} }, @$queue;
1731		3146
1732	if (@{ $ns->{query_queue} } == @$queue) {	3147	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	3148	if (@$queue) {
…		…
1735	} else {	3150	} else {
1736	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3151	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1737	}	3152	}
1738	}	3153	}
1739	},	3154	},
		3155	on_exticmd => sub {
		3156	my ($ns, $buf) = @_;
		3157
		3158	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3159
		3160	if (ref $msg) {
		3161	my ($type, $reply, @payload) =
		3162	"ARRAY" eq ref $msg
		3163	? @$msg
		3164	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3165
		3166	my @reply;
		3167
		3168	if (my $cb = $EXTICMD{$type}) {
		3169	@reply = $cb->($ns, @payload);
		3170	}
		3171
		3172	$ns->ext_reply ($reply, @reply)
		3173	if $reply;
		3174
		3175	} else {
		3176	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3177	}
		3178
		3179	cf::override;
		3180	},
1740	);	3181	);
1741		3182
1742	=item $client->coro (\&cb)	3183	=item $client->async (\&cb)
1743		3184
1744	Create a new coroutine, running the specified callback. The coroutine will	3185	Create a new coroutine, running the specified callback. The coroutine will
1745	be automatically cancelled when the client gets destroyed (e.g. on logout,	3186	be automatically cancelled when the client gets destroyed (e.g. on logout,
1746	or loss of connection).	3187	or loss of connection).
1747		3188
1748	=cut	3189	=cut
1749		3190
1750	sub cf::client::coro {	3191	sub cf::client::async {
1751	my ($self, $cb) = @_;	3192	my ($self, $cb) = @_;
1752		3193
1753	my $coro = &cf::async ($cb);	3194	my $coro = &Coro::async ($cb);
1754		3195
1755	$coro->on_destroy (sub {	3196	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	3197	delete $self->{_coro}{$coro+0};
1757	});	3198	});
1758		3199
…		…
1760		3201
1761	$coro	3202	$coro
1762	}	3203	}
1763		3204
1764	cf::client->attach (	3205	cf::client->attach (
1765	on_destroy => sub {	3206	on_client_destroy => sub {
1766	my ($ns) = @_;	3207	my ($ns) = @_;
1767		3208
1768	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3209	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1769	},	3210	},
1770	);	3211	);
…		…
1785	our $safe = new Safe "safe";	3226	our $safe = new Safe "safe";
1786	our $safe_hole = new Safe::Hole;	3227	our $safe_hole = new Safe::Hole;
1787		3228
1788	$SIG{FPE} = 'IGNORE';	3229	$SIG{FPE} = 'IGNORE';
1789		3230
1790	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3231	$safe->permit_only (Opcode::opset qw(
		3232	:base_core :base_mem :base_orig :base_math :base_loop
		3233	grepstart grepwhile mapstart mapwhile
		3234	sort time
		3235	));
1791		3236
1792	# here we export the classes and methods available to script code	3237	# here we export the classes and methods available to script code
1793		3238
1794	=pod	3239	=pod
1795		3240
1796	The following fucntions and emthods are available within a safe environment:	3241	The following functions and methods are available within a safe environment:
1797		3242
1798	cf::object contr pay_amount pay_player map	3243	cf::object
		3244	contr pay_amount pay_player map x y force_find force_add destroy
		3245	insert remove name archname title slaying race decrease split
		3246	value
		3247
1799	cf::object::player player	3248	cf::object::player
1800	cf::player peaceful	3249	player
1801	cf::map trigger	3250
		3251	cf::player
		3252	peaceful
		3253
		3254	cf::map
		3255	trigger
1802		3256
1803	=cut	3257	=cut
1804		3258
1805	for (	3259	for (
1806	["cf::object" => qw(contr pay_amount pay_player map)],	3260	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3261	insert remove inv nrof name archname title slaying race
		3262	decrease split destroy change_exp value msg lore send_msg)],
1807	["cf::object::player" => qw(player)],	3263	["cf::object::player" => qw(player)],
1808	["cf::player" => qw(peaceful)],	3264	["cf::player" => qw(peaceful send_msg)],
1809	["cf::map" => qw(trigger)],	3265	["cf::map" => qw(trigger)],
1810	) {	3266	) {
1811	no strict 'refs';	3267	no strict 'refs';
1812	my ($pkg, @funs) = @$_;	3268	my ($pkg, @funs) = @$_;
1813	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3269	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1831		3287
1832	my $qcode = $code;	3288	my $qcode = $code;
1833	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3289	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1834	$qcode =~ s/\n/\\n/g;	3290	$qcode =~ s/\n/\\n/g;
1835		3291
		3292	%vars = (_dummy => 0) unless %vars;
		3293
		3294	my @res;
1836	local $_;	3295	local $_;
1837	local @safe::cf::_safe_eval_args = values %vars;
1838		3296
1839	my $eval =	3297	my $eval =
1840	"do {\n"	3298	"do {\n"
1841	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3299	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1842	. "#line 0 \"{$qcode}\"\n"	3300	. "#line 0 \"{$qcode}\"\n"
1843	. $code	3301	. $code
1844	. "\n}"	3302	. "\n}"
1845	;	3303	;
1846		3304
		3305	if ($CFG{safe_eval}) {
1847	sub_generation_inc;	3306	sub_generation_inc;
		3307	local @safe::cf::_safe_eval_args = values %vars;
1848	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3308	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1849	sub_generation_inc;	3309	sub_generation_inc;
		3310	} else {
		3311	local @cf::_safe_eval_args = values %vars;
		3312	@res = wantarray ? eval eval : scalar eval $eval;
		3313	}
1850		3314
1851	if ($@) {	3315	if ($@) {
1852	warn "$@";	3316	warn "$@";
1853	warn "while executing safe code '$code'\n";	3317	warn "while executing safe code '$code'\n";
1854	warn "with arguments " . (join " ", %vars) . "\n";	3318	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1873	=cut	3337	=cut
1874		3338
1875	sub register_script_function {	3339	sub register_script_function {
1876	my ($fun, $cb) = @_;	3340	my ($fun, $cb) = @_;
1877		3341
1878	no strict 'refs';	3342	$fun = "safe::$fun" if $CFG{safe_eval};
1879	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3343	*$fun = $safe_hole->wrap ($cb);
1880	}	3344	}
1881		3345
1882	=back	3346	=back
1883		3347
1884	=cut	3348	=cut
1885		3349
1886	#############################################################################	3350	#############################################################################
		3351	# the server's init and main functions
1887		3352
1888	=head2 EXTENSION DATABASE SUPPORT	3353	sub load_facedata($) {
		3354	my ($path) = @_;
1889		3355
1890	Crossfire maintains a very simple database for extension use. It can	3356	# HACK to clear player env face cache, we need some signal framework
1891	currently store anything that can be serialised using Storable, which	3357	# for this (global event?)
1892	excludes objects.	3358	%ext::player_env::MUSIC_FACE_CACHE = ();
1893		3359
1894	The parameter C<$family> should best start with the name of the extension	3360	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1895	using it, it should be unique.
1896		3361
1897	=over 4	3362	warn "loading facedata from $path\n";
1898		3363
1899	=item $hashref = cf::db_get $family	3364	my $facedata;
		3365	0 < aio_load $path, $facedata
		3366	or die "$path: $!";
1900		3367
1901	Return a hashref for use by the extension C<$family>, which can be	3368	$facedata = Coro::Storable::thaw $facedata;
1902	modified. After modifications, you have to call C<cf::db_dirty> or
1903	C<cf::db_sync>.
1904		3369
1905	=item $value = cf::db_get $family => $key	3370	$facedata->{version} == 2
		3371	or cf::cleanup "$path: version mismatch, cannot proceed.";
1906		3372
1907	Returns a single value from the database	3373	# patch in the exptable
1908		3374	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1909	=item cf::db_put $family => $hashref	3375	$facedata->{resource}{"res/exp_table"} = {
1910		3376	type => FT_RSRC,
1911	Stores the given family hashref into the database. Updates are delayed, if	3377	data => $exp_table,
1912	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3378	hash => (Digest::MD5::md5 $exp_table),
1913
1914	=item cf::db_put $family => $key => $value
1915
1916	Stores the given C<$value> in the family hash. Updates are delayed, if you
1917	want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_dirty
1920
1921	Marks the database as dirty, to be updated at a later time.
1922
1923	=item cf::db_sync
1924
1925	Immediately write the database to disk I<if it is dirty>.
1926
1927	=cut
1928
1929	our $DB;
1930
1931	{
1932	my $path = cf::localdir . "/database.pst";
1933
1934	sub db_load() {
1935	$DB = stat $path ? Storable::retrieve $path : { };
1936	}
1937
1938	my $pid;
1939
1940	sub db_save() {
1941	waitpid $pid, 0 if $pid;
1942	if (0 == ($pid = fork)) {
1943	$DB->{_meta}{version} = 1;
1944	Storable::nstore $DB, "$path~";
1945	rename "$path~", $path;
1946	cf::_exit 0 if defined $pid;
1947	}
1948	}
1949
1950	my $dirty;
1951
1952	sub db_sync() {
1953	db_save if $dirty;
1954	undef $dirty;
1955	}
1956
1957	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1958	db_sync;
1959	});	3379	};
		3380	cf::cede_to_tick;
1960		3381
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}	3382	{
		3383	my $faces = $facedata->{faceinfo};
1965		3384
1966	sub db_get($;$) {	3385	while (my ($face, $info) = each %$faces) {
1967	@_ >= 2	3386	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1968	? $DB->{$_[0]}{$_[1]}
1969	: ($DB->{$_[0]} ||= { })
1970	}
1971		3387
1972	sub db_put($$;$) {	3388	cf::face::set_visibility $idx, $info->{visibility};
1973	if (@_ >= 3) {	3389	cf::face::set_magicmap $idx, $info->{magicmap};
1974	$DB->{$_[0]}{$_[1]} = $_[2];	3390	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1975	} else {	3391	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1976	$DB->{$_[0]} = $_[1];
1977	}
1978	db_dirty;
1979	}
1980		3392
1981	cf::global->attach (	3393	cf::cede_to_tick;
1982	prio => 10000,
1983	on_cleanup => sub {
1984	db_sync;
1985	},	3394	}
1986	);
1987	}
1988		3395
1989	#############################################################################	3396	while (my ($face, $info) = each %$faces) {
1990	# the server's main()	3397	next unless $info->{smooth};
1991		3398
1992	sub cfg_load {	3399	my $idx = cf::face::find $face
		3400	or next;
		3401
		3402	if (my $smooth = cf::face::find $info->{smooth}) {
		3403	cf::face::set_smooth $idx, $smooth;
		3404	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3405	} else {
		3406	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3407	}
		3408
		3409	cf::cede_to_tick;
		3410	}
		3411	}
		3412
		3413	{
		3414	my $anims = $facedata->{animinfo};
		3415
		3416	while (my ($anim, $info) = each %$anims) {
		3417	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3418	cf::cede_to_tick;
		3419	}
		3420
		3421	cf::anim::invalidate_all; # d'oh
		3422	}
		3423
		3424	{
		3425	my $res = $facedata->{resource};
		3426
		3427	while (my ($name, $info) = each %$res) {
		3428	if (defined $info->{type}) {
		3429	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3430
		3431	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3432	cf::face::set_type $idx, $info->{type};
		3433	} else {
		3434	$RESOURCE{$name} = $info;
		3435	}
		3436
		3437	cf::cede_to_tick;
		3438	}
		3439	}
		3440
		3441	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3442
		3443	1
		3444	}
		3445
		3446	cf::global->attach (on_resource_update => sub {
		3447	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3448	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3449
		3450	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3451	my $sound = $soundconf->{compat}[$_]
		3452	or next;
		3453
		3454	my $face = cf::face::find "sound/$sound->[1]";
		3455	cf::sound::set $sound->[0] => $face;
		3456	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3457	}
		3458
		3459	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3460	my $face = cf::face::find "sound/$v";
		3461	cf::sound::set $k => $face;
		3462	}
		3463	}
		3464	});
		3465
		3466	register_exticmd fx_want => sub {
		3467	my ($ns, $want) = @_;
		3468
		3469	while (my ($k, $v) = each %$want) {
		3470	$ns->fx_want ($k, $v);
		3471	}
		3472	};
		3473
		3474	sub load_resource_file($) {
		3475	my $guard = lock_acquire "load_resource_file";
		3476
		3477	my $status = load_resource_file_ $_[0];
		3478	get_slot 0.1, 100;
		3479	cf::arch::commit_load;
		3480
		3481	$status
		3482	}
		3483
		3484	sub reload_regions {
		3485	# HACK to clear player env face cache, we need some signal framework
		3486	# for this (global event?)
		3487	%ext::player_env::MUSIC_FACE_CACHE = ();
		3488
		3489	load_resource_file "$MAPDIR/regions"
		3490	or die "unable to load regions file\n";
		3491
		3492	for (cf::region::list) {
		3493	$_->{match} = qr/$_->{match}/
		3494	if exists $_->{match};
		3495	}
		3496	}
		3497
		3498	sub reload_facedata {
		3499	load_facedata "$DATADIR/facedata"
		3500	or die "unable to load facedata\n";
		3501	}
		3502
		3503	sub reload_archetypes {
		3504	load_resource_file "$DATADIR/archetypes"
		3505	or die "unable to load archetypes\n";
		3506	}
		3507
		3508	sub reload_treasures {
		3509	load_resource_file "$DATADIR/treasures"
		3510	or die "unable to load treasurelists\n";
		3511	}
		3512
		3513	sub reload_resources {
		3514	warn "reloading resource files...\n";
		3515
		3516	reload_facedata;
		3517	reload_archetypes;
		3518	reload_regions;
		3519	reload_treasures;
		3520
		3521	warn "finished reloading resource files\n";
		3522	}
		3523
		3524	sub reload_config {
		3525	warn "reloading config file...\n";
		3526
1993	open my $fh, "<:utf8", cf::confdir . "/config"	3527	open my $fh, "<:utf8", "$CONFDIR/config"
1994	or return;	3528	or return;
1995		3529
1996	local $/;	3530	local $/;
1997	*CFG = YAML::Syck::Load <$fh>;	3531	*CFG = YAML::XS::Load scalar <$fh>;
1998		3532
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3533	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3534
		3535	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3536	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2000		3537
2001	if (exists $CFG{mlockall}) {	3538	if (exists $CFG{mlockall}) {
2002	eval {	3539	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	3540	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	3541	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	3542	};
2006	warn $@ if $@;	3543	warn $@ if $@;
2007	}	3544	}
		3545
		3546	warn "finished reloading resource files\n";
		3547	}
		3548
		3549	sub pidfile() {
		3550	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3551	or die "$PIDFILE: $!";
		3552	flock $fh, &Fcntl::LOCK_EX
		3553	or die "$PIDFILE: flock: $!";
		3554	$fh
		3555	}
		3556
		3557	# make sure only one server instance is running at any one time
		3558	sub atomic {
		3559	my $fh = pidfile;
		3560
		3561	my $pid = <$fh>;
		3562	kill 9, $pid if $pid > 0;
		3563
		3564	seek $fh, 0, 0;
		3565	print $fh $$;
		3566	}
		3567
		3568	sub main_loop {
		3569	warn "EV::loop starting\n";
		3570	if (1) {
		3571	EV::loop;
		3572	}
		3573	warn "EV::loop returned\n";
		3574	goto &main_loop unless $REALLY_UNLOOP;
2008	}	3575	}
2009		3576
2010	sub main {	3577	sub main {
		3578	cf::init_globals; # initialise logging
		3579
		3580	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3581	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3582	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3583	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3584
		3585	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3586
2011	# we must not ever block the main coroutine	3587	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	3588	local $Coro::idle = sub {
2013	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3589	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2014	(Coro::unblock_sub {	3590	(async {
2015	Event::one_event;	3591	$Coro::current->{desc} = "IDLE BUG HANDLER";
2016	})->();	3592	EV::loop EV::LOOP_ONESHOT;
		3593	})->prio (Coro::PRIO_MAX);
2017	};	3594	};
2018		3595
2019	cfg_load;	3596	evthread_start IO::AIO::poll_fileno;
2020	db_load;	3597
		3598	cf::sync_job {
		3599	cf::init_experience;
		3600	cf::init_anim;
		3601	cf::init_attackmess;
		3602	cf::init_dynamic;
		3603
		3604	cf::load_settings;
		3605	cf::load_materials;
		3606
		3607	reload_resources;
		3608	reload_config;
		3609	db_init;
		3610
		3611	cf::init_uuid;
		3612	cf::init_signals;
		3613	cf::init_skills;
		3614
		3615	cf::init_beforeplay;
		3616
		3617	atomic;
		3618
2021	load_extensions;	3619	load_extensions;
2022	Event::loop;	3620
		3621	utime time, time, $RUNTIMEFILE;
		3622
		3623	# no (long-running) fork's whatsoever before this point(!)
		3624	use POSIX ();
		3625	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3626
		3627	(pop @POST_INIT)->(0) while @POST_INIT;
		3628	};
		3629
		3630	cf::object::thawer::errors_are_fatal 0;
		3631	warn "parse errors in files are no longer fatal from this point on.\n";
		3632
		3633	main_loop;
2023	}	3634	}
2024		3635
2025	#############################################################################	3636	#############################################################################
2026	# initialisation	3637	# initialisation and cleanup
2027		3638
		3639	# install some emergency cleanup handlers
		3640	BEGIN {
		3641	our %SIGWATCHER = ();
		3642	for my $signal (qw(INT HUP TERM)) {
		3643	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3644	cf::cleanup "SIG$signal";
		3645	};
		3646	}
		3647	}
		3648
		3649	sub write_runtime_sync {
		3650	my $t0 = AE::time;
		3651
		3652	# first touch the runtime file to show we are still running:
		3653	# the fsync below can take a very very long time.
		3654
		3655	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3656
		3657	my $guard = cf::lock_acquire "write_runtime";
		3658
		3659	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3660	or return;
		3661
		3662	my $value = $cf::RUNTIME + 90 + 10;
		3663	# 10 is the runtime save interval, for a monotonic clock
		3664	# 60 allows for the watchdog to kill the server.
		3665
		3666	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3667	and return;
		3668
		3669	# always fsync - this file is important
		3670	aio_fsync $fh
		3671	and return;
		3672
		3673	# touch it again to show we are up-to-date
		3674	aio_utime $fh, undef, undef;
		3675
		3676	close $fh
		3677	or return;
		3678
		3679	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3680	and return;
		3681
		3682	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3683
		3684	1
		3685	}
		3686
		3687	our $uuid_lock;
		3688	our $uuid_skip;
		3689
		3690	sub write_uuid_sync($) {
		3691	$uuid_skip ||= $_[0];
		3692
		3693	return if $uuid_lock;
		3694	local $uuid_lock = 1;
		3695
		3696	my $uuid = "$LOCALDIR/uuid";
		3697
		3698	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3699	or return;
		3700
		3701	my $value = uuid_seq uuid_cur;
		3702
		3703	unless ($value) {
		3704	warn "cowardly refusing to write zero uuid value!\n";
		3705	return;
		3706	}
		3707
		3708	my $value = uuid_str $value + $uuid_skip;
		3709	$uuid_skip = 0;
		3710
		3711	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3712	and return;
		3713
		3714	# always fsync - this file is important
		3715	aio_fsync $fh
		3716	and return;
		3717
		3718	close $fh
		3719	or return;
		3720
		3721	aio_rename "$uuid~", $uuid
		3722	and return;
		3723
		3724	warn "uuid file written ($value).\n";
		3725
		3726	1
		3727
		3728	}
		3729
		3730	sub write_uuid($$) {
		3731	my ($skip, $sync) = @_;
		3732
		3733	$sync ? write_uuid_sync $skip
		3734	: async { write_uuid_sync $skip };
		3735	}
		3736
		3737	sub emergency_save() {
		3738	my $freeze_guard = cf::freeze_mainloop;
		3739
		3740	warn "emergency_perl_save: enter\n";
		3741
		3742	cf::sync_job {
		3743	# this is a trade-off: we want to be very quick here, so
		3744	# save all maps without fsync, and later call a global sync
		3745	# (which in turn might be very very slow)
		3746	local $USE_FSYNC = 0;
		3747
		3748	# use a peculiar iteration method to avoid tripping on perl
		3749	# refcount bugs in for. also avoids problems with players
		3750	# and maps saved/destroyed asynchronously.
		3751	warn "emergency_perl_save: begin player save\n";
		3752	for my $login (keys %cf::PLAYER) {
		3753	my $pl = $cf::PLAYER{$login} or next;
		3754	$pl->valid or next;
		3755	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3756	$pl->save;
		3757	}
		3758	warn "emergency_perl_save: end player save\n";
		3759
		3760	warn "emergency_perl_save: begin map save\n";
		3761	for my $path (keys %cf::MAP) {
		3762	my $map = $cf::MAP{$path} or next;
		3763	$map->valid or next;
		3764	$map->save;
		3765	}
		3766	warn "emergency_perl_save: end map save\n";
		3767
		3768	warn "emergency_perl_save: begin database checkpoint\n";
		3769	BDB::db_env_txn_checkpoint $DB_ENV;
		3770	warn "emergency_perl_save: end database checkpoint\n";
		3771
		3772	warn "emergency_perl_save: begin write uuid\n";
		3773	write_uuid_sync 1;
		3774	warn "emergency_perl_save: end write uuid\n";
		3775	};
		3776
		3777	warn "emergency_perl_save: starting sync()\n";
		3778	IO::AIO::aio_sync sub {
		3779	warn "emergency_perl_save: finished sync()\n";
		3780	};
		3781
		3782	warn "emergency_perl_save: leave\n";
		3783	}
		3784
		3785	sub post_cleanup {
		3786	my ($make_core) = @_;
		3787
		3788	warn Carp::longmess "post_cleanup backtrace"
		3789	if $make_core;
		3790
		3791	my $fh = pidfile;
		3792	unlink $PIDFILE if <$fh> == $$;
		3793	}
		3794
		3795	# a safer delete_package, copied from Symbol
		3796	sub clear_package($) {
		3797	my $pkg = shift;
		3798
		3799	# expand to full symbol table name if needed
		3800	unless ($pkg =~ /^main::.*::$/) {
		3801	$pkg = "main$pkg" if $pkg =~ /^::/;
		3802	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3803	$pkg .= '::' unless $pkg =~ /::$/;
		3804	}
		3805
		3806	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3807	my $stem_symtab = *{$stem}{HASH};
		3808
		3809	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3810	or return;
		3811
		3812	# clear all symbols
		3813	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3814	for my $name (keys %$leaf_symtab) {
		3815	_gv_clear *{"$pkg$name"};
		3816	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3817	}
		3818	}
		3819
2028	sub reload() {	3820	sub do_reload_perl() {
2029	# can/must only be called in main	3821	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	3822	if (in_main) {
2031	warn "can only reload from main coroutine\n";	3823	warn "can only reload from main coroutine";
2032	return;	3824	return;
2033	}	3825	}
2034		3826
		3827	return if $RELOAD++;
		3828
		3829	my $t1 = AE::time;
		3830
		3831	while ($RELOAD) {
2035	warn "reloading...";	3832	warn "reloading...";
2036		3833
2037	my $guard = freeze_mainloop;	3834	warn "entering sync_job";
		3835
		3836	cf::sync_job {
		3837	cf::write_runtime_sync; # external watchdog should not bark
2038	cf::emergency_save;	3838	cf::emergency_save;
		3839	cf::write_runtime_sync; # external watchdog should not bark
2039		3840
2040	eval {	3841	warn "syncing database to disk";
		3842	BDB::db_env_txn_checkpoint $DB_ENV;
		3843
2041	# if anything goes wrong in here, we should simply crash as we already saved	3844	# if anything goes wrong in here, we should simply crash as we already saved
2042		3845
2043	# cancel all watchers	3846	warn "flushing outstanding aio requests";
2044	for (Event::all_watchers) {	3847	while (IO::AIO::nreqs || BDB::nreqs) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;	3848	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2046	}
2047
2048	# cancel all extension coros
2049	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();
2051
2052	# unload all extensions
2053	for (@exts) {
2054	warn "unloading <$_>";
2055	unload_extension $_;
2056	}
2057
2058	# unload all modules loaded from $LIBDIR
2059	while (my ($k, $v) = each %INC) {
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2061
2062	warn "removing <$k>";
2063	delete $INC{$k};
2064
2065	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;
2067
2068	if (my $cb = $k->can ("unload_module")) {
2069	$cb->();
2070	}	3849	}
2071		3850
2072	Symbol::delete_package $k;	3851	warn "cancelling all extension coros";
		3852	$_->cancel for values %EXT_CORO;
		3853	%EXT_CORO = ();
		3854
		3855	warn "removing commands";
		3856	%COMMAND = ();
		3857
		3858	warn "removing ext/exti commands";
		3859	%EXTCMD = ();
		3860	%EXTICMD = ();
		3861
		3862	warn "unloading/nuking all extensions";
		3863	for my $pkg (@EXTS) {
		3864	warn "... unloading $pkg";
		3865
		3866	if (my $cb = $pkg->can ("unload")) {
		3867	eval {
		3868	$cb->($pkg);
		3869	1
		3870	} or warn "$pkg unloaded, but with errors: $@";
		3871	}
		3872
		3873	warn "... clearing $pkg";
		3874	clear_package $pkg;
2073	}	3875	}
2074		3876
2075	# sync database to disk	3877	warn "unloading all perl modules loaded from $LIBDIR";
2076	cf::db_sync;	3878	while (my ($k, $v) = each %INC) {
2077	IO::AIO::flush;	3879	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2078		3880
		3881	warn "... unloading $k";
		3882	delete $INC{$k};
		3883
		3884	$k =~ s/\.pm$//;
		3885	$k =~ s/\//::/g;
		3886
		3887	if (my $cb = $k->can ("unload_module")) {
		3888	$cb->();
		3889	}
		3890
		3891	clear_package $k;
		3892	}
		3893
2079	# get rid of safe::, as good as possible	3894	warn "getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	3895	clear_package "safe::$_"
2081	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3896	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2082		3897
2083	# remove register_script_function callbacks	3898	warn "unloading cf.pm \"a bit\"";
2084	# TODO
2085
2086	# unload cf.pm "a bit"
2087	delete $INC{"cf.pm"};	3899	delete $INC{"cf.pm"};
		3900	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2088		3901
2089	# don't, removes xs symbols, too,	3902	# don't, removes xs symbols, too,
2090	# and global variables created in xs	3903	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	3904	#clear_package __PACKAGE__;
2092		3905
2093	# reload cf.pm	3906	warn "unload completed, starting to reload now";
		3907
2094	warn "reloading cf.pm";	3908	warn "reloading cf.pm";
2095	require cf;	3909	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3910	cf::_connect_to_perl_1;
2097		3911
2098	# load config and database again	3912	warn "loading config and database again";
2099	cf::cfg_load;	3913	cf::reload_config;
2100	cf::db_load;
2101		3914
2102	# load extensions
2103	warn "load extensions";	3915	warn "loading extensions";
2104	cf::load_extensions;	3916	cf::load_extensions;
2105		3917
2106	# reattach attachments to objects	3918	if ($REATTACH_ON_RELOAD) {
		3919	warn "reattaching attachments to objects/players";
		3920	_global_reattach; # objects, sockets
		3921	warn "reattaching attachments to maps";
		3922	reattach $_ for values %MAP;
		3923	warn "reattaching attachments to players";
		3924	reattach $_ for values %PLAYER;
		3925	}
		3926
		3927	warn "running post_init jobs";
		3928	(pop @POST_INIT)->(1) while @POST_INIT;
		3929
		3930	warn "leaving sync_job";
		3931
		3932	1
		3933	} or do {
		3934	warn $@;
		3935	cf::cleanup "error while reloading, exiting.";
		3936	};
		3937
2107	warn "reattach";	3938	warn "reloaded";
2108	_global_reattach;	3939	--$RELOAD;
		3940	}
		3941
		3942	$t1 = AE::time - $t1;
		3943	warn "reload completed in ${t1}s\n";
		3944	};
		3945
		3946	our $RELOAD_WATCHER; # used only during reload
		3947
		3948	sub reload_perl() {
		3949	# doing reload synchronously and two reloads happen back-to-back,
		3950	# coro crashes during coro_state_free->destroy here.
		3951
		3952	$RELOAD_WATCHER ||= cf::async {
		3953	Coro::AIO::aio_wait cache_extensions;
		3954
		3955	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3956	do_reload_perl;
		3957	undef $RELOAD_WATCHER;
		3958	};
2109	};	3959	};
2110
2111	if ($@) {
2112	warn $@;
2113	warn "error while reloading, exiting.";
2114	exit 1;
2115	}
2116
2117	warn "reloaded successfully";
2118	};
2119
2120	#############################################################################
2121
2122	unless ($LINK_MAP) {
2123	$LINK_MAP = cf::map::new;
2124
2125	$LINK_MAP->width (41);
2126	$LINK_MAP->height (41);
2127	$LINK_MAP->alloc;
2128	$LINK_MAP->path ("{link}");
2129	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2130	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2131
2132	# dirty hack because... archetypes are not yet loaded
2133	Event->timer (
2134	after => 2,
2135	cb => sub {
2136	$_[0]->w->cancel;
2137
2138	# provide some exits "home"
2139	my $exit = cf::object::new "exit";
2140
2141	$exit->slaying ($EMERGENCY_POSITION->[0]);
2142	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2143	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2144
2145	$LINK_MAP->insert ($exit->clone, 19, 19);
2146	$LINK_MAP->insert ($exit->clone, 19, 20);
2147	$LINK_MAP->insert ($exit->clone, 19, 21);
2148	$LINK_MAP->insert ($exit->clone, 20, 19);
2149	$LINK_MAP->insert ($exit->clone, 20, 21);
2150	$LINK_MAP->insert ($exit->clone, 21, 19);
2151	$LINK_MAP->insert ($exit->clone, 21, 20);
2152	$LINK_MAP->insert ($exit->clone, 21, 21);
2153
2154	$exit->destroy;
2155	});
2156
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}	3960	}
2162
2163	register "<global>", __PACKAGE__;
2164		3961
2165	register_command "reload" => sub {	3962	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	3963	my ($who, $arg) = @_;
2167		3964
2168	if ($who->flag (FLAG_WIZ)) {	3965	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");
2170	reload;
2171	$who->message ("end of reload.");	3966	$who->message ("reloading server.");
		3967	async {
		3968	$Coro::current->{desc} = "perl_reload";
		3969	reload_perl;
		3970	};
2172	}	3971	}
2173	};	3972	};
2174		3973
2175	unshift @INC, $LIBDIR;	3974	unshift @INC, $LIBDIR;
2176		3975
2177	$TICK_WATCHER = Event->timer (	3976	my $bug_warning = 0;
2178	reentrant => 0,	3977
2179	prio => 0,	3978	our @WAIT_FOR_TICK;
2180	at => $NEXT_TICK || $TICK,	3979	our @WAIT_FOR_TICK_BEGIN;
2181	data => WF_AUTOCANCEL,	3980
2182	cb => sub {	3981	sub wait_for_tick {
		3982	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3983
		3984	my $signal = new Coro::Signal;
		3985	push @WAIT_FOR_TICK, $signal;
		3986	$signal->wait;
		3987	}
		3988
		3989	sub wait_for_tick_begin {
		3990	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3991
		3992	my $signal = new Coro::Signal;
		3993	push @WAIT_FOR_TICK_BEGIN, $signal;
		3994	$signal->wait;
		3995	}
		3996
		3997	sub tick {
		3998	if ($Coro::current != $Coro::main) {
		3999	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4000	unless ++$bug_warning > 10;
		4001	return;
		4002	}
		4003
2183	cf::server_tick; # one server iteration	4004	cf::server_tick; # one server iteration
2184	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;
2186		4005
2187	# if we are delayed by four ticks or more, skip them all	4006	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2189		4007
2190	$TICK_WATCHER->at ($NEXT_TICK);	4008	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2191	$TICK_WATCHER->start;	4009	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2192	},	4010	Coro::async_pool {
2193	);	4011	$Coro::current->{desc} = "runtime saver";
2194
2195	IO::AIO::max_poll_time $TICK * 0.2;
2196
2197	Event->io (
2198	fd => IO::AIO::poll_fileno,
2199	poll => 'r',
2200	prio => 5,
2201	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,
2203	);
2204
2205	Event->timer (
2206	data => WF_AUTOCANCEL,
2207	after => 0,
2208	interval => 10,
2209	cb => sub {
2210	(Coro::unblock_sub {
2211	write_runtime	4012	write_runtime_sync
2212	or warn "ERROR: unable to write runtime file: $!";	4013	or warn "ERROR: unable to write runtime file: $!";
2213	})->();	4014	};
2214	},	4015	}
2215	);	4016
		4017	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4018	$sig->send;
		4019	}
		4020	while (my $sig = shift @WAIT_FOR_TICK) {
		4021	$sig->send;
		4022	}
		4023
		4024	$LOAD = ($NOW - $TICK_START) / $TICK;
		4025	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4026
		4027	if (0) {
		4028	if ($NEXT_TICK) {
		4029	my $jitter = $TICK_START - $NEXT_TICK;
		4030	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4031	warn "jitter $JITTER\n";#d#
		4032	}
		4033	}
		4034	}
		4035
		4036	{
		4037	# configure BDB
		4038
		4039	BDB::min_parallel 16;
		4040	BDB::max_poll_reqs $TICK * 0.1;
		4041	$AnyEvent::BDB::WATCHER->priority (1);
		4042
		4043	unless ($DB_ENV) {
		4044	$DB_ENV = BDB::db_env_create;
		4045	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4046	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4047	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4048	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4049	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4050
		4051	cf::sync_job {
		4052	eval {
		4053	BDB::db_env_open
		4054	$DB_ENV,
		4055	$BDBDIR,
		4056	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4057	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4058	0666;
		4059
		4060	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4061	};
		4062
		4063	cf::cleanup "db_env_open(db): $@" if $@;
		4064	};
		4065	}
		4066
		4067	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4068	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4069	};
		4070	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4071	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4072	};
		4073	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4074	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4075	};
		4076	}
		4077
		4078	{
		4079	# configure IO::AIO
		4080
		4081	IO::AIO::min_parallel 8;
		4082	IO::AIO::max_poll_time $TICK * 0.1;
		4083	undef $AnyEvent::AIO::WATCHER;
		4084	}
		4085
		4086	my $_log_backtrace;
		4087
		4088	sub _log_backtrace {
		4089	my ($msg, @addr) = @_;
		4090
		4091	$msg =~ s/\n//;
		4092
		4093	# limit the # of concurrent backtraces
		4094	if ($_log_backtrace < 2) {
		4095	++$_log_backtrace;
		4096	my $perl_bt = Carp::longmess $msg;
		4097	async {
		4098	$Coro::current->{desc} = "abt $msg";
		4099
		4100	my @bt = fork_call {
		4101	@addr = map { sprintf "%x", $_ } @addr;
		4102	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4103	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4104	or die "addr2line: $!";
		4105
		4106	my @funcs;
		4107	my @res = <$fh>;
		4108	chomp for @res;
		4109	while (@res) {
		4110	my ($func, $line) = splice @res, 0, 2, ();
		4111	push @funcs, "[$func] $line";
		4112	}
		4113
		4114	@funcs
		4115	};
		4116
		4117	LOG llevInfo, "[ABT] $perl_bt\n";
		4118	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4119	LOG llevInfo, "[ABT] $_\n" for @bt;
		4120	--$_log_backtrace;
		4121	};
		4122	} else {
		4123	LOG llevInfo, "[ABT] $msg\n";
		4124	LOG llevInfo, "[ABT] [suppressed]\n";
		4125	}
		4126	}
		4127
		4128	# load additional modules
		4129	require "cf/$_.pm" for @EXTRA_MODULES;
		4130	cf::_connect_to_perl_2;
2216		4131
2217	END { cf::emergency_save }	4132	END { cf::emergency_save }
2218		4133
2219	1	4134	1
2220		4135

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