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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.222 by root, Tue Mar 6 03:06:00 2007 UTC vs.
Revision 1.513 by root, Mon Apr 12 05:22:38 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 3.5 ();	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
		55	use JSON::XS 2.01 ();
20	use BDB ();	56	use BDB ();
21	use Data::Dumper;	57	use Data::Dumper;
22	use Digest::MD5;
23	use Fcntl;	58	use Fcntl;
24	use IO::AIO 2.32 ();
25	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
26	use Time::HiRes;	61	use Time::HiRes;
27	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
28		64
		65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		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";
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		77
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	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
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		82
40	our %COMMAND = ();	83	our %COMMAND = ();
41	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
42		85
43	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
47		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
48	our @EVENT;	93	our @EVENT;
49	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
50		96
51	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	98	our $DATADIR = datadir;
53	our $AIO_POLL_WATCHER;	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 = 4000;
		114	our $OUTPUT_RATE_MAX = 100000;
		115
		116	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	118	our $NEXT_TICK;
56	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off	119	our $USE_FSYNC = 1; # use fsync to write maps - default on
58		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
59	our $BDB_POLL_WATCHER;	123	our $BDB_TRICKLE_WATCHER;
60	our $DB_ENV;	124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
61		127
62	our %CFG;	128	our %CFG;
63		129
64	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
66		133
67	our %PLAYER; # all users	134	our (%PLAYER, %PLAYER_LOADING); # all users
68	our %MAP; # all maps	135	our (%MAP, %MAP_LOADING ); # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	136	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		137
76	# used to convert map paths into valid unix filenames by replacing / by ∕	138	# used to convert map paths into valid unix filenames by replacing / by ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		140
		141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
		144	our $TICK_START; # for load detecting purposes
		145
		146	our @POST_INIT;
		147
		148	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		149	our $REALLY_UNLOOP; # never set to true, please :)
		150
79	binmode STDOUT;	151	binmode STDOUT;
80	binmode STDERR;	152	binmode STDERR;
81		153
82	# read virtual server time, if available	154	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
84	open my $fh, "<", cf::localdir . "/runtime"	156	open my $fh, "<", $RUNTIMEFILE
85	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
86	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
87	}	159	}
88		160
89	mkdir cf::localdir;	161	eval "sub TICK() { $TICK } 1" or die;
90	mkdir cf::localdir . "/" . cf::playerdir;	162
91	mkdir cf::localdir . "/" . cf::tmpdir;	163	mkdir $_
92	mkdir cf::localdir . "/" . cf::uniquedir;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		165
96	our $EMERGENCY_POSITION;	166	our $EMERGENCY_POSITION;
97		167
98	sub cf::map::normalise;	168	sub cf::map::normalise;
		169
		170	#############################################################################
		171
		172	%REFLECT = ();
		173	for (@REFLECT) {
		174	my $reflect = JSON::XS::decode_json $_;
		175	$REFLECT{$reflect->{class}} = $reflect;
		176	}
		177
		178	# this is decidedly evil
		179	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
99		180
100	#############################################################################	181	#############################################################################
101		182
102	=head2 GLOBAL VARIABLES	183	=head2 GLOBAL VARIABLES
103		184
…		…
110	=item $cf::RUNTIME	191	=item $cf::RUNTIME
111		192
112	The time this server has run, starts at 0 and is increased by $cf::TICK on	193	The time this server has run, starts at 0 and is increased by $cf::TICK on
113	every server tick.	194	every server tick.
114		195
115	=item $cf::LIBDIR	196	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		197	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		198	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
116		199
117	The perl library directory, where extensions and cf-specific modules can	200	Various directories - "/etc", read-only install directory, perl-library
118	be found. It will be added to C<@INC> automatically.	201	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		202	unique-items directory, player file directory, random maps directory and
		203	database environment.
119		204
120	=item $cf::NOW	205	=item $cf::NOW
121		206
122	The time of the last (current) server tick.	207	The time of the last (current) server tick.
123		208
124	=item $cf::TICK	209	=item $cf::TICK
125		210
126	The interval between server ticks, in seconds.	211	The interval between server ticks, in seconds.
127		212
		213	=item $cf::LOADAVG
		214
		215	The current CPU load on the server (alpha-smoothed), as a value between 0
		216	(none) and 1 (overloaded), indicating how much time is spent on processing
		217	objects per tick. Healthy values are < 0.5.
		218
		219	=item $cf::LOAD
		220
		221	The raw value load value from the last tick.
		222
128	=item %cf::CFG	223	=item %cf::CFG
129		224
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	225	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	226	from wherever your confdir points to.
132		227
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	228	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		229
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	230	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	231	returns directly I<after> the tick processing (and consequently, can only wake one process
137	processing has been done. Call C<< ->wait >> on them to maximise the	232	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138	window of cpu time available, or simply to synchronise to the server tick.	233
		234	=item @cf::INVOKE_RESULTS
		235
		236	This array contains the results of the last C<invoke ()> call. When
		237	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		238	that call.
		239
		240	=item %cf::REFLECT
		241
		242	Contains, for each (C++) class name, a hash reference with information
		243	about object members (methods, scalars, arrays and flags) and other
		244	metadata, which is useful for introspection.
139		245
140	=back	246	=back
141		247
142	=cut	248	=cut
143		249
144	BEGIN {	250	$Coro::State::WARNHOOK = sub {
145	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	251	my $msg = join "", @_;
147	utf8::encode $msg;
148		252
149	$msg .= "\n"	253	$msg .= "\n"
150	unless $msg =~ /\n$/;	254	unless $msg =~ /\n$/;
151		255
		256	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		257
152	LOG llevError, $msg;	258	LOG llevError, $msg;
153	};	259	};
154	}	260
		261	$Coro::State::DIEHOOK = sub {
		262	return unless $^S eq 0; # "eq", not "=="
		263
		264	warn Carp::longmess $_[0];
		265
		266	if ($Coro::current == $Coro::main) {#d#
		267	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		268	return;#d#
		269	}#d#
		270
		271	# kill coroutine otherwise
		272	Coro::terminate
		273	};
155		274
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	275	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	276	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	277	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	278	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	279	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		280	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
161	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	281	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
162		282
163	# we bless all objects into (empty) derived classes to force a method lookup	283	# we bless all objects into (empty) derived classes to force a method lookup
164	# within the Safe compartment.	284	# within the Safe compartment.
165	for my $pkg (qw(	285	for my $pkg (qw(
166	cf::global cf::attachable	286	cf::global cf::attachable
167	cf::object cf::object::player	287	cf::object cf::object::player
168	cf::client cf::player	288	cf::client cf::player
169	cf::arch cf::living	289	cf::arch cf::living
		290	cf::map cf::mapspace
170	cf::map cf::party cf::region	291	cf::party cf::region
171	)) {	292	)) {
172	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	293	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	294	}
175		295
176	$Event::DIED = sub {	296	$EV::DIED = sub {
177	warn "error in event callback: @_";	297	Carp::cluck "error in event callback: @_";
178	};	298	};
		299
		300	#############################################################################
179		301
180	=head2 UTILITY FUNCTIONS	302	=head2 UTILITY FUNCTIONS
181		303
182	=over 4	304	=over 4
183		305
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	324	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	325	$d
204	} || "[unable to dump $_[0]: '$@']";	326	} || "[unable to dump $_[0]: '$@']";
205	}	327	}
206		328
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	329	=item $ref = cf::decode_json $json
210		330
211	Converts a JSON string into the corresponding perl data structure.	331	Converts a JSON string into the corresponding perl data structure.
212		332
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	333	=item $json = cf::encode_json $ref
221		334
222	Converts a perl data structure into its JSON representation.	335	Converts a perl data structure into its JSON representation.
223		336
224	=cut	337	=cut
225		338
226	sub to_json($) {	339	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	340
228	JSON::Syck::Dump $_[0]	341	sub encode_json($) { $json_coder->encode ($_[0]) }
		342	sub decode_json($) { $json_coder->decode ($_[0]) }
		343
		344	=item cf::post_init { BLOCK }
		345
		346	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		347	but I<before> the server starts ticking again.
		348
		349	The cdoeblock will have a single boolean argument to indicate whether this
		350	is a reload or not.
		351
		352	=cut
		353
		354	sub post_init(&) {
		355	push @POST_INIT, shift;
229	}	356	}
230		357
231	=item cf::lock_wait $string	358	=item cf::lock_wait $string
232		359
233	Wait until the given lock is available. See cf::lock_acquire.	360	Wait until the given lock is available. See cf::lock_acquire.
234		361
235	=item my $lock = cf::lock_acquire $string	362	=item my $lock = cf::lock_acquire $string
236		363
237	Wait until the given lock is available and then acquires it and returns	364	Wait until the given lock is available and then acquires it and returns
238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	365	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
239	for example when the coroutine gets canceled), the lock is automatically	366	for example when the coroutine gets canceled), the lock is automatically
240	returned.	367	returned.
241		368
		369	Locks are *not* recursive, locking from the same coro twice results in a
		370	deadlocked coro.
		371
242	Lock names should begin with a unique identifier (for example, cf::map::find	372	Lock names should begin with a unique identifier (for example, cf::map::find
243	uses map_find and cf::map::load uses map_load).	373	uses map_find and cf::map::load uses map_load).
244		374
245	=cut	375	=item $locked = cf::lock_active $string
246		376
247	our %LOCK;	377	Return true if the lock is currently active, i.e. somebody has locked it.
		378
		379	=cut
		380
		381	our $LOCKS = new Coro::SemaphoreSet;
248		382
249	sub lock_wait($) {	383	sub lock_wait($) {
250	my ($key) = @_;	384	$LOCKS->wait ($_[0]);
251
252	# wait for lock, if any
253	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;
256	}
257	}	385	}
258		386
259	sub lock_acquire($) {	387	sub lock_acquire($) {
260	my ($key) = @_;	388	$LOCKS->guard ($_[0])
		389	}
261		390
262	# wait, to be sure we are not locked	391	sub lock_active($) {
263	lock_wait $key;	392	$LOCKS->count ($_[0]) < 1
264
265	$LOCK{$key} = [];
266
267	Coro::guard {
268	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };
270	}
271	}	393	}
272		394
273	sub freeze_mainloop {	395	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	396	tick_inhibit_inc;
275		397
276	my $guard = Coro::guard {	398	&Guard::guard (\&tick_inhibit_dec);
277	$TICK_WATCHER->start;	399	}
		400
		401	=item cf::periodic $interval, $cb
		402
		403	Like EV::periodic, but randomly selects a starting point so that the actions
		404	get spread over timer.
		405
		406	=cut
		407
		408	sub periodic($$) {
		409	my ($interval, $cb) = @_;
		410
		411	my $start = rand List::Util::min 180, $interval;
		412
		413	EV::periodic $start, $interval, 0, $cb
		414	}
		415
		416	=item cf::get_slot $time[, $priority[, $name]]
		417
		418	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		419	This call blocks and returns only when you have at least C<$time> seconds
		420	of cpu time till the next tick. The slot is only valid till the next cede.
		421
		422	The optional C<$name> can be used to identify the job to run. It might be
		423	used for statistical purposes and should identify the same time-class.
		424
		425	Useful for short background jobs.
		426
		427	=cut
		428
		429	our @SLOT_QUEUE;
		430	our $SLOT_QUEUE;
		431	our $SLOT_DECAY = 0.9;
		432
		433	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		434	$SLOT_QUEUE = Coro::async {
		435	$Coro::current->desc ("timeslot manager");
		436
		437	my $signal = new Coro::Signal;
		438	my $busy;
		439
		440	while () {
		441	next_job:
		442
		443	my $avail = cf::till_tick;
		444
		445	for (0 .. $#SLOT_QUEUE) {
		446	if ($SLOT_QUEUE[$_][0] <= $avail) {
		447	$busy = 0;
		448	my $job = splice @SLOT_QUEUE, $_, 1, ();
		449	$job->[2]->send;
		450	Coro::cede;
		451	goto next_job;
		452	} else {
		453	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		454	}
		455	}
		456
		457	if (@SLOT_QUEUE) {
		458	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		459	push @cf::WAIT_FOR_TICK, $signal;
		460	$signal->wait;
		461	} else {
		462	$busy = 0;
		463	Coro::schedule;
		464	}
278	};	465	}
279	$TICK_WATCHER->stop;	466	};
280	$guard	467
		468	sub get_slot($;$$) {
		469	return if tick_inhibit || $Coro::current == $Coro::main;
		470
		471	my ($time, $pri, $name) = @_;
		472
		473	$time = clamp $time, 0.01, $TICK * .6;
		474
		475	my $sig = new Coro::Signal;
		476
		477	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		478	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		479	$SLOT_QUEUE->ready;
		480	$sig->wait;
281	}	481	}
282		482
283	=item cf::async { BLOCK }	483	=item cf::async { BLOCK }
284		484
285	Currently the same as Coro::async_pool, meaning you cannot use	485	Currently the same as Coro::async_pool, meaning you cannot use
…		…
290		490
291	BEGIN { *async = \&Coro::async_pool }	491	BEGIN { *async = \&Coro::async_pool }
292		492
293	=item cf::sync_job { BLOCK }	493	=item cf::sync_job { BLOCK }
294		494
295	The design of crossfire+ requires that the main coro ($Coro::main) is	495	The design of Deliantra requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	496	is always able to handle events or runnable, as Deliantra is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	497	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		498	acceptable.
298		499
299	If it must be done, put the blocking parts into C<sync_job>. This will run	500	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	501	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	502	server will be frozen during this time, so the block should either finish
302	fast or be very important.	503	fast or be very important.
…		…
305		506
306	sub sync_job(&) {	507	sub sync_job(&) {
307	my ($job) = @_;	508	my ($job) = @_;
308		509
309	if ($Coro::current == $Coro::main) {	510	if ($Coro::current == $Coro::main) {
		511	my $time = AE::time;
		512
310	# this is the main coro, too bad, we have to block	513	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	514	# till the operation succeeds, freezing the server :/
312		515
313	# TODO: use suspend/resume instead	516	LOG llevError, Carp::longmess "sync job";#d#
314	# (but this is cancel-safe)	517
315	my $freeze_guard = freeze_mainloop;	518	my $freeze_guard = freeze_mainloop;
316		519
317	my $busy = 1;	520	my $busy = 1;
318	my @res;	521	my @res;
319		522
320	(async {	523	(async {
		524	$Coro::current->desc ("sync job coro");
321	@res = eval { $job->() };	525	@res = eval { $job->() };
322	warn $@ if $@;	526	warn $@ if $@;
323	undef $busy;	527	undef $busy;
324	})->prio (Coro::PRIO_MAX);	528	})->prio (Coro::PRIO_MAX);
325		529
326	while ($busy) {	530	while ($busy) {
327	Coro::cede or Event::one_event;	531	if (Coro::nready) {
		532	Coro::cede_notself;
		533	} else {
		534	EV::loop EV::LOOP_ONESHOT;
328	}	535	}
		536	}
		537
		538	my $time = AE::time - $time;
		539
		540	$TICK_START += $time; # do not account sync jobs to server load
329		541
330	wantarray ? @res : $res[0]	542	wantarray ? @res : $res[0]
331	} else {	543	} else {
332	# we are in another coroutine, how wonderful, everything just works	544	# we are in another coroutine, how wonderful, everything just works
333		545
…		…
353	$EXT_CORO{$coro+0} = $coro;	565	$EXT_CORO{$coro+0} = $coro;
354		566
355	$coro	567	$coro
356	}	568	}
357		569
358	sub write_runtime {	570	=item fork_call { }, $args
359	my $guard = cf::lock_acquire "write_runtime";
360		571
361	my $runtime = cf::localdir . "/runtime";	572	Executes the given code block with the given arguments in a seperate
		573	process, returning the results. Everything must be serialisable with
		574	Coro::Storable. May, of course, block. Note that the executed sub may
		575	never block itself or use any form of event handling.
362		576
363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	577	=cut
364	or return;
365		578
366	my $value = $cf::RUNTIME + 90 + 10;	579	sub fork_call(&@) {
367	# 10 is the runtime save interval, for a monotonic clock	580	my ($cb, @args) = @_;
368	# 60 allows for the watchdog to kill the server.
369		581
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0	582	# we seemingly have to make a local copy of the whole thing,
371	and return;	583	# otherwise perl prematurely frees the stuff :/
		584	# TODO: investigate and fix (likely this will be rather laborious)
372		585
373	# always fsync - this file is important	586	my @res = Coro::Util::fork_eval {
374	aio_fsync $fh	587	reset_signals;
375	and return;	588	&$cb
		589	}, @args;
376		590
377	close $fh	591	wantarray ? @res : $res[-1]
378	or return;	592	}
379		593
380	aio_rename "$runtime~", $runtime	594	=item $coin = coin_from_name $name
381	and return;
382		595
		596	=cut
		597
		598	our %coin_alias = (
		599	"silver" => "silvercoin",
		600	"silvercoin" => "silvercoin",
		601	"silvercoins" => "silvercoin",
		602	"gold" => "goldcoin",
		603	"goldcoin" => "goldcoin",
		604	"goldcoins" => "goldcoin",
		605	"platinum" => "platinacoin",
		606	"platinumcoin" => "platinacoin",
		607	"platinumcoins" => "platinacoin",
		608	"platina" => "platinacoin",
		609	"platinacoin" => "platinacoin",
		610	"platinacoins" => "platinacoin",
		611	"royalty" => "royalty",
		612	"royalties" => "royalty",
		613	);
		614
		615	sub coin_from_name($) {
		616	$coin_alias{$_[0]}
		617	? cf::arch::find $coin_alias{$_[0]}
		618	: undef
		619	}
		620
		621	=item $value = cf::db_get $family => $key
		622
		623	Returns a single value from the environment database.
		624
		625	=item cf::db_put $family => $key => $value
		626
		627	Stores the given C<$value> in the family. It can currently store binary
		628	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		629
		630	=item $db = cf::db_table "name"
		631
		632	Create and/or open a new database table. The string must not be "db" and must be unique
		633	within each server.
		634
		635	=cut
		636
		637	sub db_table($) {
		638	my ($name) = @_;
		639	my $db = BDB::db_create $DB_ENV;
		640
		641	eval {
		642	$db->set_flags (BDB::CHKSUM);
		643
		644	utf8::encode $name;
		645	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		646	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		647	cf::cleanup "db_open(db): $!" if $!;
		648	};
		649	cf::cleanup "db_open(db): $@" if $@;
		650
		651	$db
		652	}
		653
		654	our $DB;
		655
		656	sub db_init {
		657	cf::sync_job {
		658	$DB ||= db_table "db";
		659	};
		660	}
		661
		662	sub db_get($$) {
		663	my $key = "$_[0]/$_[1]";
		664
		665	cf::sync_job {
		666	BDB::db_get $DB, undef, $key, my $data;
		667
		668	$! ? ()
		669	: $data
383	1	670	}
		671	}
		672
		673	sub db_put($$$) {
		674	BDB::dbreq_pri 4;
		675	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		676	}
		677
		678	=item cf::cache $id => [$paths...], $processversion => $process
		679
		680	Generic caching function that returns the value of the resource $id,
		681	caching and regenerating as required.
		682
		683	This function can block.
		684
		685	=cut
		686
		687	sub cache {
		688	my ($id, $src, $processversion, $process) = @_;
		689
		690	my $meta =
		691	join "\x00",
		692	$processversion,
		693	map {
		694	aio_stat $_
		695	and Carp::croak "$_: $!";
		696
		697	($_, (stat _)[7,9])
		698	} @$src;
		699
		700	my $dbmeta = db_get cache => "$id/meta";
		701	if ($dbmeta ne $meta) {
		702	# changed, we may need to process
		703
		704	my @data;
		705	my $md5;
		706
		707	for (0 .. $#$src) {
		708	0 <= aio_load $src->[$_], $data[$_]
		709	or Carp::croak "$src->[$_]: $!";
		710	}
		711
		712	# if processing is expensive, check
		713	# checksum first
		714	if (1) {
		715	$md5 =
		716	join "\x00",
		717	$processversion,
		718	map {
		719	cf::cede_to_tick;
		720	($src->[$_], Digest::MD5::md5_hex $data[$_])
		721	} 0.. $#$src;
		722
		723
		724	my $dbmd5 = db_get cache => "$id/md5";
		725	if ($dbmd5 eq $md5) {
		726	db_put cache => "$id/meta", $meta;
		727
		728	return db_get cache => "$id/data";
		729	}
		730	}
		731
		732	my $t1 = Time::HiRes::time;
		733	my $data = $process->(\@data);
		734	my $t2 = Time::HiRes::time;
		735
		736	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		737
		738	db_put cache => "$id/data", $data;
		739	db_put cache => "$id/md5" , $md5;
		740	db_put cache => "$id/meta", $meta;
		741
		742	return $data;
		743	}
		744
		745	db_get cache => "$id/data"
		746	}
		747
		748	=item cf::datalog type => key => value, ...
		749
		750	Log a datalog packet of the given type with the given key-value pairs.
		751
		752	=cut
		753
		754	sub datalog($@) {
		755	my ($type, %kv) = @_;
		756	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384	}	757	}
385		758
386	=back	759	=back
387		760
388	=cut	761	=cut
389		762
390	#############################################################################	763	#############################################################################
391		764
392	=head2 ATTACHABLE OBJECTS	765	=head2 ATTACHABLE OBJECTS
393		766
394	Many objects in crossfire are so-called attachable objects. That means you can	767	Many objects in deliantra are so-called attachable objects. That means you can
395	attach callbacks/event handlers (a collection of which is called an "attachment")	768	attach callbacks/event handlers (a collection of which is called an "attachment")
396	to it. All such attachable objects support the following methods.	769	to it. All such attachable objects support the following methods.
397		770
398	In the following description, CLASS can be any of C<global>, C<object>	771	In the following description, CLASS can be any of C<global>, C<object>
399	C<player>, C<client> or C<map> (i.e. the attachable objects in	772	C<player>, C<client> or C<map> (i.e. the attachable objects in
400	crossfire+).	773	Deliantra).
401		774
402	=over 4	775	=over 4
403		776
404	=item $attachable->attach ($attachment, key => $value...)	777	=item $attachable->attach ($attachment, key => $value...)
405		778
…		…
449	=item cf::CLASS::attachment $name, ...	822	=item cf::CLASS::attachment $name, ...
450		823
451	Register an attachment by C<$name> through which attachable objects of the	824	Register an attachment by C<$name> through which attachable objects of the
452	given CLASS can refer to this attachment.	825	given CLASS can refer to this attachment.
453		826
454	Some classes such as crossfire maps and objects can specify attachments	827	Some classes such as deliantra maps and objects can specify attachments
455	that are attached at load/instantiate time, thus the need for a name.	828	that are attached at load/instantiate time, thus the need for a name.
456		829
457	These calls expect any number of the following handler/hook descriptions:	830	These calls expect any number of the following handler/hook descriptions:
458		831
459	=over 4	832	=over 4
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	941	$registry = $CB_TYPE[$object_type] ||= [];
569		942
570	} elsif ($type eq "subtype") {	943	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	944	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	945	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	946	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		947
575	} elsif ($type eq "package") {	948	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	949	my $pkg = shift @arg;
577		950
578	while (my ($name, $id) = each %cb_id) {	951	while (my ($name, $id) = each %cb_id) {
…		…
607	_attach $registry, $klass, @attach;	980	_attach $registry, $klass, @attach;
608	}	981	}
609		982
610	$obj->{$name} = \%arg;	983	$obj->{$name} = \%arg;
611	} else {	984	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	985	warn "object uses attachment '$name' which is not available, postponing.\n";
613	}	986	}
614		987
615	$obj->{_attachment}{$name} = undef;	988	$obj->{_attachment}{$name} = undef;
616	}	989	}
617		990
…		…
619	if (ref $_[0]) {	992	if (ref $_[0]) {
620	_object_attach @_;	993	_object_attach @_;
621	} else {	994	} else {
622	_attach shift->_attach_registry, @_;	995	_attach shift->_attach_registry, @_;
623	}	996	}
		997	_recalc_want;
624	};	998	};
625		999
626	# all those should be optimised	1000	# all those should be optimised
627	sub cf::attachable::detach {	1001	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	1002	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	1005	delete $obj->{_attachment}{$name};
632	reattach ($obj);	1006	reattach ($obj);
633	} else {	1007	} else {
634	Carp::croak "cannot, currently, detach class attachments";	1008	Carp::croak "cannot, currently, detach class attachments";
635	}	1009	}
		1010	_recalc_want;
636	};	1011	};
637		1012
638	sub cf::attachable::attached {	1013	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	1014	my ($obj, $name) = @_;
640		1015
…		…
655	";	1030	";
656	die if $@;	1031	die if $@;
657	}	1032	}
658		1033
659	our $override;	1034	our $override;
660	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1035	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
661		1036
662	sub override {	1037	sub override {
663	$override = 1;	1038	$override = 1;
664	@invoke_results = ();	1039	@INVOKE_RESULTS = (@_);
665	}	1040	}
666		1041
667	sub do_invoke {	1042	sub do_invoke {
668	my $event = shift;	1043	my $event = shift;
669	my $callbacks = shift;	1044	my $callbacks = shift;
670		1045
671	@invoke_results = ();	1046	@INVOKE_RESULTS = ();
672		1047
673	local $override;	1048	local $override;
674		1049
675	for (@$callbacks) {	1050	for (@$callbacks) {
676	eval { &{$_->[1]} };	1051	eval { &{$_->[1]} };
…		…
685	}	1060	}
686		1061
687	0	1062	0
688	}	1063	}
689		1064
690	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1065	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
691		1066
692	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1067	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
693		1068
694	Generate an object-specific event with the given arguments.	1069	Generate an object-specific event with the given arguments.
695		1070
696	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1071	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
697	removed in future versions), and there is no public API to access override	1072	removed in future versions), and there is no public API to access override
698	results (if you must, access C<@cf::invoke_results> directly).	1073	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
699		1074
700	=back	1075	=back
701		1076
702	=cut	1077	=cut
703		1078
704	#############################################################################	1079	#############################################################################
705	# object support	1080	# object support
		1081
		1082	sub _object_equal($$);
		1083	sub _object_equal($$) {
		1084	my ($a, $b) = @_;
		1085
		1086	return 0 unless (ref $a) eq (ref $b);
		1087
		1088	if ("HASH" eq ref $a) {
		1089	my @ka = keys %$a;
		1090	my @kb = keys %$b;
		1091
		1092	return 0 if @ka != @kb;
		1093
		1094	for (0 .. $#ka) {
		1095	return 0 unless $ka[$_] eq $kb[$_];
		1096	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1097	}
		1098
		1099	} elsif ("ARRAY" eq ref $a) {
		1100
		1101	return 0 if @$a != @$b;
		1102
		1103	for (0 .. $#$a) {
		1104	return 0 unless _object_equal $a->[$_], $b->[$_];
		1105	}
		1106
		1107	} elsif ($a ne $b) {
		1108	return 0;
		1109	}
		1110
		1111	1
		1112	}
		1113
		1114	our $SLOW_MERGES;#d#
		1115	sub _can_merge {
		1116	my ($ob1, $ob2) = @_;
		1117
		1118	++$SLOW_MERGES;#d#
		1119
		1120	# we do the slow way here
		1121	return _object_equal $ob1, $ob2
		1122	}
706		1123
707	sub reattach {	1124	sub reattach {
708	# basically do the same as instantiate, without calling instantiate	1125	# basically do the same as instantiate, without calling instantiate
709	my ($obj) = @_;	1126	my ($obj) = @_;
710		1127
		1128	# no longer needed after getting rid of delete_package?
711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1129	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
712		1130
713	my $registry = $obj->registry;	1131	my $registry = $obj->registry;
714		1132
715	@$registry = ();	1133	@$registry = ();
716		1134
…		…
731	cf::attachable->attach (	1149	cf::attachable->attach (
732	prio => -1000000,	1150	prio => -1000000,
733	on_instantiate => sub {	1151	on_instantiate => sub {
734	my ($obj, $data) = @_;	1152	my ($obj, $data) = @_;
735		1153
736	$data = from_json $data;	1154	$data = decode_json $data;
737		1155
738	for (@$data) {	1156	for (@$data) {
739	my ($name, $args) = @$_;	1157	my ($name, $args) = @$_;
740		1158
741	$obj->attach ($name, %{$args || {} });	1159	$obj->attach ($name, %{$args || {} });
…		…
757	sub object_freezer_save {	1175	sub object_freezer_save {
758	my ($filename, $rdata, $objs) = @_;	1176	my ($filename, $rdata, $objs) = @_;
759		1177
760	sync_job {	1178	sync_job {
761	if (length $$rdata) {	1179	if (length $$rdata) {
		1180	utf8::decode (my $decname = $filename);
762	warn sprintf "saving %s (%d,%d)\n",	1181	warn sprintf "saving %s (%d,%d)\n",
763	$filename, length $$rdata, scalar @$objs;	1182	$decname, length $$rdata, scalar @$objs;
764		1183
765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
766	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1186	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
768	aio_fsync $fh if $cf::USE_FSYNC;	1187	if ($cf::USE_FSYNC) {
		1188	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;
		1189	aio_fsync $fh;
		1190	}
769	close $fh;	1191	aio_close $fh;
770		1192
771	if (@$objs) {	1193	if (@$objs) {
772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1194	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
773	chmod SAVE_MODE, $fh;	1195	aio_chmod $fh, SAVE_MODE;
774	my $data = Storable::nfreeze { version => 1, objs => $objs };	1196	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
775	aio_write $fh, 0, (length $data), $data, 0;	1197	aio_write $fh, 0, (length $data), $data, 0;
776	aio_fsync $fh if $cf::USE_FSYNC;	1198	if ($cf::USE_FSYNC) {
		1199	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;
		1200	aio_fsync $fh;
		1201	}
777	close $fh;	1202	aio_close $fh;
778	aio_rename "$filename.pst~", "$filename.pst";	1203	aio_rename "$filename.pst~", "$filename.pst";
779	}	1204	}
780	} else {	1205	} else {
781	aio_unlink "$filename.pst";	1206	aio_unlink "$filename.pst";
782	}	1207	}
783		1208
784	aio_rename "$filename~", $filename;	1209	aio_rename "$filename~", $filename;
		1210
		1211	$filename =~ s%/[^/]+$%%;
		1212	aio_pathsync $filename if $cf::USE_FSYNC;
785	} else {	1213	} else {
786	warn "FATAL: $filename~: $!\n";	1214	warn "unable to save objects: $filename~: $!\n";
787	}	1215	}
788	} else {	1216	} else {
789	aio_unlink $filename;	1217	aio_unlink $filename;
790	aio_unlink "$filename.pst";	1218	aio_unlink "$filename.pst";
791	}	1219	}
792	}	1220	};
793	}	1221	}
794		1222
795	sub object_freezer_as_string {	1223	sub object_freezer_as_string {
796	my ($rdata, $objs) = @_;	1224	my ($rdata, $objs) = @_;
797		1225
…		…
809	or return;	1237	or return;
810		1238
811	unless (aio_stat "$filename.pst") {	1239	unless (aio_stat "$filename.pst") {
812	(aio_load "$filename.pst", $av) >= 0	1240	(aio_load "$filename.pst", $av) >= 0
813	or return;	1241	or return;
		1242
814	$av = eval { (Storable::thaw $av)->{objs} };	1243	my $st = eval { Coro::Storable::thaw $av };
		1244	$av = $st->{objs};
815	}	1245	}
816		1246
		1247	utf8::decode (my $decname = $filename);
817	warn sprintf "loading %s (%d)\n",	1248	warn sprintf "loading %s (%d,%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1249	$decname, length $data, scalar @{$av || []};
		1250
819	return ($data, $av);	1251	($data, $av)
820	}	1252	}
		1253
		1254	=head2 COMMAND CALLBACKS
		1255
		1256	=over 4
		1257
		1258	=cut
821		1259
822	#############################################################################	1260	#############################################################################
823	# command handling &c	1261	# command handling &c
824		1262
825	=item cf::register_command $name => \&callback($ob,$args);	1263	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1276	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1277	}
840		1278
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1279	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1280
843	Register a callbackf ro execution when the client sends an extcmd packet.	1281	Register a callback for execution when the client sends an (synchronous)
		1282	extcmd packet. Ext commands will be processed in the order they are
		1283	received by the server, like other user commands. The first argument is
		1284	the logged-in player. Ext commands can only be processed after a player
		1285	has logged in successfully.
844		1286
845	If the callback returns something, it is sent back as if reply was being	1287	If the callback returns something, it is sent back as if reply was being
846	called.	1288	called.
847		1289
		1290	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1291
		1292	Register a callback for execution when the client sends an (asynchronous)
		1293	exticmd packet. Exti commands are processed by the server as soon as they
		1294	are received, i.e. out of order w.r.t. other commands. The first argument
		1295	is a client socket. Exti commands can be received anytime, even before
		1296	log-in.
		1297
		1298	If the callback returns something, it is sent back as if reply was being
		1299	called.
		1300
848	=cut	1301	=cut
849		1302
850	sub register_extcmd {	1303	sub register_extcmd {
851	my ($name, $cb) = @_;	1304	my ($name, $cb) = @_;
852		1305
853	$EXTCMD{$name} = $cb;	1306	$EXTCMD{$name} = $cb;
854	}	1307	}
855		1308
		1309	sub register_exticmd {
		1310	my ($name, $cb) = @_;
		1311
		1312	$EXTICMD{$name} = $cb;
		1313	}
		1314
		1315	use File::Glob ();
		1316
856	cf::player->attach (	1317	cf::player->attach (
857	on_command => sub {	1318	on_unknown_command => sub {
858	my ($pl, $name, $params) = @_;	1319	my ($pl, $name, $params) = @_;
859		1320
860	my $cb = $COMMAND{$name}	1321	my $cb = $COMMAND{$name}
861	or return;	1322	or return;
862		1323
…		…
867	cf::override;	1328	cf::override;
868	},	1329	},
869	on_extcmd => sub {	1330	on_extcmd => sub {
870	my ($pl, $buf) = @_;	1331	my ($pl, $buf) = @_;
871		1332
872	my $msg = eval { from_json $buf };	1333	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
873		1334
874	if (ref $msg) {	1335	if (ref $msg) {
		1336	my ($type, $reply, @payload) =
		1337	"ARRAY" eq ref $msg
		1338	? @$msg
		1339	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1340
		1341	my @reply;
		1342
875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1343	if (my $cb = $EXTCMD{$type}) {
876	if (my %reply = $cb->($pl, $msg)) {	1344	@reply = $cb->($pl, @payload);
877	$pl->ext_reply ($msg->{msgid}, %reply);
878	}
879	}	1345	}
		1346
		1347	$pl->ext_reply ($reply, @reply)
		1348	if $reply;
		1349
880	} else {	1350	} else {
881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1351	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
882	}	1352	}
883		1353
884	cf::override;	1354	cf::override;
885	},	1355	},
886	);	1356	);
887		1357
		1358	# "readahead" all extensions
888	sub load_extension {	1359	sub cache_extensions {
889	my ($path) = @_;	1360	my $grp = IO::AIO::aio_group;
890		1361
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1362	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
892	my $base = $1;	1363	for (grep /\.ext$/, @{$_[0]}) {
893	my $pkg = $1;	1364	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}	1365	}
916	die $@;
917	}	1366	};
918		1367
919	push @EXTS, $pkg;	1368	$grp
920	}	1369	}
921		1370
922	sub load_extensions {	1371	sub load_extensions {
		1372	cf::sync_job {
		1373	my %todo;
		1374
923	for my $ext (<$LIBDIR/*.ext>) {	1375	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1376	next unless -r $path;
925	eval {	1377
926	load_extension $ext;	1378	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1379	my $base = $1;
		1380	my $pkg = $1;
		1381	$pkg =~ s/[^[:word:]]/_/g;
		1382	$pkg = "ext::$pkg";
		1383
		1384	open my $fh, "<:utf8", $path
		1385	or die "$path: $!";
		1386
		1387	my $source = do { local $/; <$fh> };
		1388
		1389	my %ext = (
		1390	path => $path,
		1391	base => $base,
		1392	pkg => $pkg,
		1393	);
		1394
		1395	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1396	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1397
		1398	$ext{source} =
		1399	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1400	. "#line 1 \"$path\"\n{\n"
		1401	. $source
		1402	. "\n};\n1";
		1403
		1404	$todo{$base} = \%ext;
		1405	}
		1406
		1407	my $pass = 0;
		1408	my %done;
		1409	while (%todo) {
		1410	my $progress;
		1411
		1412	++$pass;
		1413
		1414	ext:
		1415	while (my ($k, $v) = each %todo) {
		1416	for (split /,\s*/, $v->{meta}{depends}) {
		1417	next ext
		1418	unless exists $done{$_};
		1419	}
		1420
		1421	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1422
		1423	my $active = eval $v->{source};
		1424
		1425	if (length $@) {
		1426	warn "$v->{path}: $@\n";
		1427
		1428	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1429	if exists $v->{meta}{mandatory};
		1430	} else {
		1431	$done{$k} = delete $todo{$k};
		1432	push @EXTS, $v->{pkg};
		1433	$progress = 1;
		1434
		1435	warn "$v->{base}: extension inactive.\n"
		1436	unless $active;
		1437	}
927	1	1438	}
928	} or warn "$ext not loaded: $@";	1439
		1440	unless ($progress) {
		1441	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1442
		1443	while (my ($k, $v) = each %todo) {
		1444	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1445	if exists $v->{meta}{mandatory};
		1446	}
		1447	}
		1448	}
929	}	1449	};
930	}	1450	}
931		1451
932	#############################################################################	1452	#############################################################################
933		1453
		1454	=back
		1455
934	=head2 CORE EXTENSIONS	1456	=head2 CORE EXTENSIONS
935		1457
936	Functions and methods that extend core crossfire objects.	1458	Functions and methods that extend core deliantra objects.
937		1459
938	=cut	1460	=cut
939		1461
940	package cf::player;	1462	package cf::player;
941		1463
…		…
943		1465
944	=head3 cf::player	1466	=head3 cf::player
945		1467
946	=over 4	1468	=over 4
947		1469
		1470	=item cf::player::num_playing
		1471
		1472	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1473
		1474	=cut
		1475
		1476	sub num_playing {
		1477	scalar grep
		1478	$_->ob->map
		1479	&& !$_->hidden
		1480	&& !$_->ob->flag (cf::FLAG_WIZ),
		1481	cf::player::list
		1482	}
		1483
948	=item cf::player::find $login	1484	=item cf::player::find $login
949		1485
950	Returns the given player object, loading it if necessary (might block).	1486	Returns the given player object, loading it if necessary (might block).
951		1487
952	=cut	1488	=cut
953		1489
954	sub playerdir($) {	1490	sub playerdir($) {
955	cf::localdir	1491	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1492	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1493	}
961		1494
962	sub path($) {	1495	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1496	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1497
965	(playerdir $login) . "/$login.pl"	1498	(playerdir $login) . "/playerdata"
966	}	1499	}
967		1500
968	sub find_active($) {	1501	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1502	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1503	and $cf::PLAYER{$_[0]}->active
…		…
973		1506
974	sub exists($) {	1507	sub exists($) {
975	my ($login) = @_;	1508	my ($login) = @_;
976		1509
977	$cf::PLAYER{$login}	1510	$cf::PLAYER{$login}
978	or cf::sync_job { !aio_stat path $login }	1511	or !aio_stat path $login
979	}	1512	}
980		1513
981	sub find($) {	1514	sub find($) {
982	return $cf::PLAYER{$_[0]} || do {	1515	return $cf::PLAYER{$_[0]} || do {
983	my $login = $_[0];	1516	my $login = $_[0];
984		1517
985	my $guard = cf::lock_acquire "user_find:$login";	1518	my $guard = cf::lock_acquire "user_find:$login";
986		1519
987	$cf::PLAYER{$_[0]} || do {	1520	$cf::PLAYER{$_[0]} || do {
988	my $pl = load_pl path $login	1521	# rename old playerfiles to new ones
		1522	#TODO: remove when no longer required
		1523	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1524	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1525	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1526	aio_unlink +(playerdir $login) . "/$login.pl";
		1527
		1528	my $f = new_from_file cf::object::thawer path $login
989	or return;	1529	or return;
		1530
		1531	my $pl = cf::player::load_pl $f
		1532	or return;
		1533
		1534	local $cf::PLAYER_LOADING{$login} = $pl;
		1535	$f->resolve_delayed_derefs;
990	$cf::PLAYER{$login} = $pl	1536	$cf::PLAYER{$login} = $pl
991	}	1537	}
992	}	1538	}
993	}	1539	}
		1540
		1541	cf::player->attach (
		1542	on_load => sub {
		1543	my ($pl, $path) = @_;
		1544
		1545	# restore slots saved in save, below
		1546	my $slots = delete $pl->{_slots};
		1547
		1548	$pl->ob->current_weapon ($slots->[0]);
		1549	$pl->combat_ob ($slots->[1]);
		1550	$pl->ranged_ob ($slots->[2]);
		1551	},
		1552	);
994		1553
995	sub save($) {	1554	sub save($) {
996	my ($pl) = @_;	1555	my ($pl) = @_;
997		1556
998	return if $pl->{deny_save};	1557	return if $pl->{deny_save};
…		…
1003	return if $pl->{deny_save};	1562	return if $pl->{deny_save};
1004		1563
1005	aio_mkdir playerdir $pl, 0770;	1564	aio_mkdir playerdir $pl, 0770;
1006	$pl->{last_save} = $cf::RUNTIME;	1565	$pl->{last_save} = $cf::RUNTIME;
1007		1566
		1567	cf::get_slot 0.01;
		1568
		1569	# save slots, to be restored later
		1570	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1571
1008	$pl->save_pl ($path);	1572	$pl->save_pl ($path);
1009	Coro::cede;	1573	cf::cede_to_tick;
1010	}	1574	}
1011		1575
1012	sub new($) {	1576	sub new($) {
1013	my ($login) = @_;	1577	my ($login) = @_;
1014		1578
…		…
1020	$cf::PLAYER{$login} = $self;	1584	$cf::PLAYER{$login} = $self;
1021		1585
1022	$self	1586	$self
1023	}	1587	}
1024		1588
		1589	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1590
		1591	=cut
		1592
		1593	sub send_msg {
		1594	my $ns = shift->ns
		1595	or return;
		1596	$ns->send_msg (@_);
		1597	}
		1598
1025	=item $pl->quit_character	1599	=item $pl->quit_character
1026		1600
1027	Nukes the player without looking back. If logged in, the connection will	1601	Nukes the player without looking back. If logged in, the connection will
1028	be destroyed. May block for a long time.	1602	be destroyed. May block for a long time.
1029		1603
…		…
1033	my ($pl) = @_;	1607	my ($pl) = @_;
1034		1608
1035	my $name = $pl->ob->name;	1609	my $name = $pl->ob->name;
1036		1610
1037	$pl->{deny_save} = 1;	1611	$pl->{deny_save} = 1;
1038	$pl->password ("*"); # this should lock out the player until we nuked the dir	1612	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1039		1613
1040	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1614	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1041	$pl->deactivate;	1615	$pl->deactivate;
		1616	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1617	$pl->ob->check_score;
1042	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1618	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1043	$pl->ns->destroy if $pl->ns;	1619	$pl->ns->destroy if $pl->ns;
1044		1620
1045	my $path = playerdir $pl;	1621	my $path = playerdir $pl;
1046	my $temp = "$path~$cf::RUNTIME~deleting~";	1622	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1076	while and may block, so not sync_job-capable, ever.	1652	while and may block, so not sync_job-capable, ever.
1077		1653
1078	=cut	1654	=cut
1079		1655
1080	sub list_logins {	1656	sub list_logins {
1081	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1657	my $dirs = aio_readdir $PLAYERDIR
1082	or return [];	1658	or return [];
1083		1659
1084	my @logins;	1660	my @logins;
1085		1661
1086	for my $login (@$dirs) {	1662	for my $login (@$dirs) {
		1663	my $path = path $login;
		1664
		1665	# a .pst is a dead give-away for a valid player
		1666	# if no pst file found, open and chekc for blocked users
		1667	if (aio_stat "$path.pst") {
1087	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1668	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1088	aio_read $fh, 0, 512, my $buf, 0 or next;	1669	aio_read $fh, 0, 512, my $buf, 0 or next;
1089	$buf !~ /^password -------------$/m or next; # official not-valid tag	1670	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1671	}
1090		1672
1091	utf8::decode $login;	1673	utf8::decode $login;
1092	push @logins, $login;	1674	push @logins, $login;
1093	}	1675	}
1094		1676
…		…
1121	}	1703	}
1122		1704
1123	\@paths	1705	\@paths
1124	}	1706	}
1125		1707
		1708	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1709
		1710	Expand deliantra pod fragments into protocol xml.
		1711
1126	=item $player->ext_reply ($msgid, $msgtype, %msg)	1712	=item $player->ext_reply ($msgid, @msg)
1127		1713
1128	Sends an ext reply to the player.	1714	Sends an ext reply to the player.
1129		1715
1130	=cut	1716	=cut
1131		1717
1132	sub ext_reply($$$%) {	1718	sub ext_reply($$@) {
1133	my ($self, $id, %msg) = @_;	1719	my ($self, $id, @msg) = @_;
1134		1720
1135	$msg{msgid} = $id;	1721	$self->ns->ext_reply ($id, @msg)
1136
1137	$self->send ("ext " . cf::to_json \%msg);
1138	}	1722	}
1139		1723
1140	package cf;	1724	=item $player->ext_msg ($type, @msg)
		1725
		1726	Sends an ext event to the client.
		1727
		1728	=cut
		1729
		1730	sub ext_msg($$@) {
		1731	my ($self, $type, @msg) = @_;
		1732
		1733	$self->ns->ext_msg ($type, @msg);
		1734	}
		1735
		1736	=head3 cf::region
		1737
		1738	=over 4
		1739
		1740	=cut
		1741
		1742	package cf::region;
		1743
		1744	=item cf::region::find_by_path $path
		1745
		1746	Tries to decuce the likely region for a map knowing only its path.
		1747
		1748	=cut
		1749
		1750	sub find_by_path($) {
		1751	my ($path) = @_;
		1752
		1753	my ($match, $specificity);
		1754
		1755	for my $region (list) {
		1756	if ($region->{match} && $path =~ $region->{match}) {
		1757	($match, $specificity) = ($region, $region->specificity)
		1758	if $region->specificity > $specificity;
		1759	}
		1760	}
		1761
		1762	$match
		1763	}
1141		1764
1142	=back	1765	=back
1143
1144		1766
1145	=head3 cf::map	1767	=head3 cf::map
1146		1768
1147	=over 4	1769	=over 4
1148		1770
…		…
1160	our $MAX_RESET = 3600;	1782	our $MAX_RESET = 3600;
1161	our $DEFAULT_RESET = 3000;	1783	our $DEFAULT_RESET = 3000;
1162		1784
1163	sub generate_random_map {	1785	sub generate_random_map {
1164	my ($self, $rmp) = @_;	1786	my ($self, $rmp) = @_;
		1787
		1788	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1789
1165	# mit "rum" bekleckern, nicht	1790	# mit "rum" bekleckern, nicht
1166	$self->_create_random_map (	1791	$self->_create_random_map (
1167	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1792	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1168	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1793	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1169	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1794	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1170	$rmp->{exit_on_final_map},	1795	$rmp->{exit_on_final_map},
1171	$rmp->{xsize}, $rmp->{ysize},	1796	$rmp->{xsize}, $rmp->{ysize},
1172	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1797	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1173	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1798	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1203	my ($self, $merge) = @_;	1828	my ($self, $merge) = @_;
1204		1829
1205	# we have to keep some variables in memory intact	1830	# we have to keep some variables in memory intact
1206	local $self->{path};	1831	local $self->{path};
1207	local $self->{load_path};	1832	local $self->{load_path};
1208	local $self->{deny_save};
1209	local $self->{deny_reset};
1210		1833
1211	$self->SUPER::thawer_merge ($merge);	1834	$self->SUPER::thawer_merge ($merge);
1212	}	1835	}
1213		1836
1214	sub normalise {	1837	sub normalise {
…		…
1261	$self->init; # pass $1 etc.	1884	$self->init; # pass $1 etc.
1262	return $self;	1885	return $self;
1263	}	1886	}
1264	}	1887	}
1265		1888
1266	Carp::carp "unable to resolve path '$path' (base '$base').";	1889	Carp::cluck "unable to resolve path '$path' (base '$base').";
1267	()	1890	()
1268	}	1891	}
1269		1892
1270	sub init {	1893	sub init {
1271	my ($self) = @_;	1894	my ($self) = @_;
…		…
1286		1909
1287	# the original (read-only) location	1910	# the original (read-only) location
1288	sub load_path {	1911	sub load_path {
1289	my ($self) = @_;	1912	my ($self) = @_;
1290		1913
1291	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1914	"$MAPDIR/$self->{path}.map"
1292	}	1915	}
1293		1916
1294	# the temporary/swap location	1917	# the temporary/swap location
1295	sub save_path {	1918	sub save_path {
1296	my ($self) = @_;	1919	my ($self) = @_;
1297		1920
1298	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1921	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1299	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1922	"$TMPDIR/$path.map"
1300	}	1923	}
1301		1924
1302	# the unique path, undef == no special unique path	1925	# the unique path, undef == no special unique path
1303	sub uniq_path {	1926	sub uniq_path {
1304	my ($self) = @_;	1927	my ($self) = @_;
1305		1928
1306	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1929	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1307	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1930	"$UNIQUEDIR/$path"
1308	}	1931	}
1309		1932
1310	# and all this just because we cannot iterate over	1933	sub decay_objects {
1311	# all maps in C++...
1312	sub change_all_map_light {
1313	my ($change) = @_;	1934	my ($self) = @_;
1314		1935
1315	$_->change_map_light ($change)	1936	return if $self->{deny_reset};
1316	for grep $_->outdoor, values %cf::MAP;	1937
		1938	$self->do_decay_objects;
1317	}	1939	}
1318		1940
1319	sub unlink_save {	1941	sub unlink_save {
1320	my ($self) = @_;	1942	my ($self) = @_;
1321		1943
…		…
1326		1948
1327	sub load_header_from($) {	1949	sub load_header_from($) {
1328	my ($self, $path) = @_;	1950	my ($self, $path) = @_;
1329		1951
1330	utf8::encode $path;	1952	utf8::encode $path;
1331	#aio_open $path, O_RDONLY, 0	1953	my $f = new_from_file cf::object::thawer $path
1332	# or return;
1333
1334	$self->_load_header ($path)
1335	or return;	1954	or return;
		1955
		1956	$self->_load_header ($f)
		1957	or return;
		1958
		1959	local $MAP_LOADING{$self->{path}} = $self;
		1960	$f->resolve_delayed_derefs;
1336		1961
1337	$self->{load_path} = $path;	1962	$self->{load_path} = $path;
1338		1963
1339	1	1964	1
1340	}	1965	}
…		…
1379	$self->load_header_orig	2004	$self->load_header_orig
1380	or return;	2005	or return;
1381	$self->prepare_orig;	2006	$self->prepare_orig;
1382	}	2007	}
1383		2008
		2009	$self->{deny_reset} = 1
		2010	if $self->no_reset;
		2011
		2012	$self->default_region (cf::region::find_by_path $self->{path})
		2013	unless $self->default_region;
		2014
1384	1	2015	1
1385	}	2016	}
1386		2017
1387	sub find;	2018	sub find;
1388	sub find {	2019	sub find {
1389	my ($path, $origin) = @_;	2020	my ($path, $origin) = @_;
1390		2021
1391	$path = normalise $path, $origin && $origin->path;	2022	$path = normalise $path, $origin && $origin->path;
1392		2023
		2024	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1393	cf::lock_wait "map_find:$path";	2025	my $guard2 = cf::lock_acquire "map_find:$path";
1394		2026
1395	$cf::MAP{$path} || do {	2027	$cf::MAP{$path} || do {
1396	my $guard = cf::lock_acquire "map_find:$path";
1397	my $map = new_from_path cf::map $path	2028	my $map = new_from_path cf::map $path
1398	or return;	2029	or return;
1399		2030
1400	$map->{last_save} = $cf::RUNTIME;	2031	$map->{last_save} = $cf::RUNTIME;
1401		2032
1402	$map->load_header	2033	$map->load_header
1403	or return;	2034	or return;
1404		2035
1405	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2036	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1406	# doing this can freeze the server in a sync job, obviously	2037	# doing this can freeze the server in a sync job, obviously
1407	#$cf::WAIT_FOR_TICK->wait;	2038	#$cf::WAIT_FOR_TICK->wait;
		2039	undef $guard2;
		2040	undef $guard1;
1408	$map->reset;	2041	$map->reset;
1409	undef $guard;
1410	return find $path;	2042	return find $path;
1411	}	2043	}
1412		2044
1413	$cf::MAP{$path} = $map	2045	$cf::MAP{$path} = $map
1414	}	2046	}
1415	}	2047	}
1416		2048
1417	sub pre_load { }	2049	sub pre_load { }
1418	sub post_load { }	2050	#sub post_load { } # XS
1419		2051
1420	sub load {	2052	sub load {
1421	my ($self) = @_;	2053	my ($self) = @_;
1422		2054
1423	local $self->{deny_reset} = 1; # loading can take a long time	2055	local $self->{deny_reset} = 1; # loading can take a long time
1424		2056
1425	my $path = $self->{path};	2057	my $path = $self->{path};
		2058
		2059	{
1426	my $guard = cf::lock_acquire "map_load:$path";	2060	my $guard = cf::lock_acquire "map_data:$path";
1427		2061
		2062	return unless $self->valid;
1428	return if $self->in_memory != cf::MAP_SWAPPED;	2063	return unless $self->in_memory == cf::MAP_SWAPPED;
1429		2064
1430	$self->in_memory (cf::MAP_LOADING);	2065	$self->in_memory (cf::MAP_LOADING);
1431		2066
1432	$self->alloc;	2067	$self->alloc;
1433		2068
1434	$self->pre_load;	2069	$self->pre_load;
		2070	cf::cede_to_tick;
1435		2071
1436	$self->_load_objects ($self->{load_path}, 1)	2072	my $f = new_from_file cf::object::thawer $self->{load_path};
		2073	$f->skip_block;
		2074	$self->_load_objects ($f)
1437	or return;	2075	or return;
1438		2076
1439	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2077	$self->post_load_original
1440	if delete $self->{load_original};	2078	if delete $self->{load_original};
1441		2079
1442	if (my $uniq = $self->uniq_path) {	2080	if (my $uniq = $self->uniq_path) {
1443	utf8::encode $uniq;	2081	utf8::encode $uniq;
1444	if (aio_open $uniq, O_RDONLY, 0) {	2082	unless (aio_stat $uniq) {
		2083	if (my $f = new_from_file cf::object::thawer $uniq) {
1445	$self->clear_unique_items;	2084	$self->clear_unique_items;
1446	$self->_load_objects ($uniq, 0);	2085	$self->_load_objects ($f);
		2086	$f->resolve_delayed_derefs;
		2087	}
1447	}	2088	}
1448	}	2089	}
1449		2090
1450	Coro::cede;	2091	$f->resolve_delayed_derefs;
1451		2092
		2093	cf::cede_to_tick;
1452	# now do the right thing for maps	2094	# now do the right thing for maps
1453	$self->link_multipart_objects;	2095	$self->link_multipart_objects;
1454
1455	unless ($self->{deny_activate}) {
1456	$self->decay_objects;
1457	$self->fix_auto_apply;
1458	$self->update_buttons;
1459	Coro::cede;
1460	$self->set_darkness_map;
1461	$self->difficulty ($self->estimate_difficulty)	2096	$self->difficulty ($self->estimate_difficulty)
1462	unless $self->difficulty;	2097	unless $self->difficulty;
1463	Coro::cede;	2098	cf::cede_to_tick;
		2099
		2100	unless ($self->{deny_activate}) {
		2101	$self->decay_objects;
		2102	$self->fix_auto_apply;
		2103	$self->update_buttons;
		2104	cf::cede_to_tick;
1464	$self->activate;	2105	$self->activate;
		2106	}
		2107
		2108	$self->{last_save} = $cf::RUNTIME;
		2109	$self->last_access ($cf::RUNTIME);
		2110
		2111	$self->in_memory (cf::MAP_ACTIVE);
1465	}	2112	}
1466		2113
1467	$self->post_load;	2114	$self->post_load;
1468
1469	$self->in_memory (cf::MAP_IN_MEMORY);
1470	}	2115	}
1471		2116
		2117	# customize the map for a given player, i.e.
		2118	# return the _real_ map. used by e.g. per-player
		2119	# maps to change the path to ~playername/mappath
1472	sub customise_for {	2120	sub customise_for {
1473	my ($self, $ob) = @_;	2121	my ($self, $ob) = @_;
1474		2122
1475	return find "~" . $ob->name . "/" . $self->{path}	2123	return find "~" . $ob->name . "/" . $self->{path}
1476	if $self->per_player;	2124	if $self->per_player;
1477		2125
		2126	# return find "?party/" . $ob->name . "/" . $self->{path}
		2127	# if $self->per_party;
		2128
1478	$self	2129	$self
1479	}	2130	}
1480		2131
1481	# find and load all maps in the 3x3 area around a map	2132	# find and load all maps in the 3x3 area around a map
1482	sub load_diag {	2133	sub load_neighbours {
1483	my ($map) = @_;	2134	my ($map) = @_;
1484		2135
1485	my @diag; # diagonal neighbours	2136	my @neigh; # diagonal neighbours
1486		2137
1487	for (0 .. 3) {	2138	for (0 .. 3) {
1488	my $neigh = $map->tile_path ($_)	2139	my $neigh = $map->tile_path ($_)
1489	or next;	2140	or next;
1490	$neigh = find $neigh, $map	2141	$neigh = find $neigh, $map
1491	or next;	2142	or next;
1492	$neigh->load;	2143	$neigh->load;
1493		2144
		2145	push @neigh,
1494	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2146	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1495	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2147	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1496	}	2148	}
1497		2149
1498	for (@diag) {	2150	for (grep defined $_->[0], @neigh) {
		2151	my ($path, $origin) = @$_;
1499	my $neigh = find @$_	2152	my $neigh = find $path, $origin
1500	or next;	2153	or next;
1501	$neigh->load;	2154	$neigh->load;
1502	}	2155	}
1503	}	2156	}
1504		2157
…		…
1509	}	2162	}
1510		2163
1511	sub do_load_sync {	2164	sub do_load_sync {
1512	my ($map) = @_;	2165	my ($map) = @_;
1513		2166
		2167	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2168	if $Coro::current == $Coro::main;
		2169
1514	cf::sync_job { $map->load };	2170	cf::sync_job { $map->load };
1515	}	2171	}
1516		2172
1517	our %MAP_PREFETCH;	2173	our %MAP_PREFETCH;
1518	our $MAP_PREFETCHER = undef;	2174	our $MAP_PREFETCHER = undef;
1519		2175
1520	sub find_async {	2176	sub find_async {
1521	my ($path, $origin) = @_;	2177	my ($path, $origin, $load) = @_;
1522		2178
1523	$path = normalise $path, $origin && $origin->{path};	2179	$path = normalise $path, $origin && $origin->{path};
1524		2180
1525	if (my $map = $cf::MAP{$path}) {	2181	if (my $map = $cf::MAP{$path}) {
1526	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2182	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1527	}	2183	}
1528		2184
1529	undef $MAP_PREFETCH{$path};	2185	$MAP_PREFETCH{$path} |= $load;
		2186
1530	$MAP_PREFETCHER ||= cf::async {	2187	$MAP_PREFETCHER ||= cf::async {
		2188	$Coro::current->{desc} = "map prefetcher";
		2189
1531	while (%MAP_PREFETCH) {	2190	while (%MAP_PREFETCH) {
1532	for my $path (keys %MAP_PREFETCH) {	2191	while (my ($k, $v) = each %MAP_PREFETCH) {
1533	my $map = find $path	2192	if (my $map = find $k) {
1534	or next;
1535	$map->load;	2193	$map->load if $v;
		2194	}
1536		2195
1537	delete $MAP_PREFETCH{$path};	2196	delete $MAP_PREFETCH{$k};
1538	}	2197	}
1539	}	2198	}
1540	undef $MAP_PREFETCHER;	2199	undef $MAP_PREFETCHER;
1541	};	2200	};
1542	$MAP_PREFETCHER->prio (6);	2201	$MAP_PREFETCHER->prio (6);
…		…
1545	}	2204	}
1546		2205
1547	sub save {	2206	sub save {
1548	my ($self) = @_;	2207	my ($self) = @_;
1549		2208
1550	my $lock = cf::lock_acquire "map_data:" . $self->path;	2209	my $lock = cf::lock_acquire "map_data:$self->{path}";
1551		2210
1552	$self->{last_save} = $cf::RUNTIME;	2211	$self->{last_save} = $cf::RUNTIME;
1553		2212
1554	return unless $self->dirty;	2213	return unless $self->dirty;
1555		2214
…		…
1561	return if $self->{deny_save};	2220	return if $self->{deny_save};
1562		2221
1563	local $self->{last_access} = $self->last_access;#d#	2222	local $self->{last_access} = $self->last_access;#d#
1564		2223
1565	cf::async {	2224	cf::async {
		2225	$Coro::current->{desc} = "map player save";
1566	$_->contr->save for $self->players;	2226	$_->contr->save for $self->players;
1567	};	2227	};
		2228
		2229	cf::get_slot 0.02;
1568		2230
1569	if ($uniq) {	2231	if ($uniq) {
1570	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2232	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1571	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2233	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1572	} else {	2234	} else {
…		…
1578	my ($self) = @_;	2240	my ($self) = @_;
1579		2241
1580	# save first because save cedes	2242	# save first because save cedes
1581	$self->save;	2243	$self->save;
1582		2244
1583	my $lock = cf::lock_acquire "map_data:" . $self->path;	2245	my $lock = cf::lock_acquire "map_data:$self->{path}";
1584		2246
1585	return if $self->players;	2247	return if $self->players;
1586	return if $self->in_memory != cf::MAP_IN_MEMORY;	2248	return if $self->in_memory != cf::MAP_ACTIVE;
1587	return if $self->{deny_save};	2249	return if $self->{deny_save};
1588		2250
		2251	$self->in_memory (cf::MAP_SWAPPED);
		2252
		2253	$self->deactivate;
		2254	$_->clear_links_to ($self) for values %cf::MAP;
1589	$self->clear;	2255	$self->clear;
1590	$self->in_memory (cf::MAP_SWAPPED);
1591	}	2256	}
1592		2257
1593	sub reset_at {	2258	sub reset_at {
1594	my ($self) = @_;	2259	my ($self) = @_;
1595		2260
1596	# TODO: safety, remove and allow resettable per-player maps	2261	# TODO: safety, remove and allow resettable per-player maps
1597	return 1e99 if $self->isa ("ext::map_per_player");#d#
1598	return 1e99 if $self->{deny_reset};	2262	return 1e99 if $self->{deny_reset};
1599		2263
1600	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2264	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1601	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2265	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1602		2266
…		…
1613	my ($self) = @_;	2277	my ($self) = @_;
1614		2278
1615	my $lock = cf::lock_acquire "map_data:$self->{path}";	2279	my $lock = cf::lock_acquire "map_data:$self->{path}";
1616		2280
1617	return if $self->players;	2281	return if $self->players;
1618	return if $self->isa ("ext::map_per_player");#d#
1619		2282
1620	warn "resetting map ", $self->path;#d#	2283	warn "resetting map ", $self->path, "\n";
1621		2284
1622	$self->in_memory (cf::MAP_SWAPPED);	2285	$self->in_memory (cf::MAP_SWAPPED);
1623		2286
1624	# need to save uniques path	2287	# need to save uniques path
1625	unless ($self->{deny_save}) {	2288	unless ($self->{deny_save}) {
…		…
1629	if $uniq;	2292	if $uniq;
1630	}	2293	}
1631		2294
1632	delete $cf::MAP{$self->path};	2295	delete $cf::MAP{$self->path};
1633		2296
		2297	$self->deactivate;
		2298	$_->clear_links_to ($self) for values %cf::MAP;
1634	$self->clear;	2299	$self->clear;
1635
1636	$_->clear_links_to ($self) for values %cf::MAP;
1637		2300
1638	$self->unlink_save;	2301	$self->unlink_save;
1639	$self->destroy;	2302	$self->destroy;
1640	}	2303	}
1641		2304
1642	my $nuke_counter = "aaaa";	2305	my $nuke_counter = "aaaa";
1643		2306
1644	sub nuke {	2307	sub nuke {
1645	my ($self) = @_;	2308	my ($self) = @_;
1646		2309
		2310	{
		2311	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2312
1647	delete $cf::MAP{$self->path};	2313	delete $cf::MAP{$self->path};
1648		2314
1649	$self->unlink_save;	2315	$self->unlink_save;
1650		2316
1651	bless $self, "cf::map";	2317	bless $self, "cf::map";
1652	delete $self->{deny_reset};	2318	delete $self->{deny_reset};
1653	$self->{deny_save} = 1;	2319	$self->{deny_save} = 1;
1654	$self->reset_timeout (1);	2320	$self->reset_timeout (1);
1655	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2321	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1656		2322
1657	$cf::MAP{$self->path} = $self;	2323	$cf::MAP{$self->path} = $self;
		2324	}
1658		2325
1659	$self->reset; # polite request, might not happen	2326	$self->reset; # polite request, might not happen
		2327	}
		2328
		2329	=item $maps = cf::map::tmp_maps
		2330
		2331	Returns an arrayref with all map paths of currently instantiated and saved
		2332	maps. May block.
		2333
		2334	=cut
		2335
		2336	sub tmp_maps() {
		2337	[
		2338	map {
		2339	utf8::decode $_;
		2340	/\.map$/
		2341	? normalise $_
		2342	: ()
		2343	} @{ aio_readdir $TMPDIR or [] }
		2344	]
		2345	}
		2346
		2347	=item $maps = cf::map::random_maps
		2348
		2349	Returns an arrayref with all map paths of currently instantiated and saved
		2350	random maps. May block.
		2351
		2352	=cut
		2353
		2354	sub random_maps() {
		2355	[
		2356	map {
		2357	utf8::decode $_;
		2358	/\.map$/
		2359	? normalise "?random/$_"
		2360	: ()
		2361	} @{ aio_readdir $RANDOMDIR or [] }
		2362	]
1660	}	2363	}
1661		2364
1662	=item cf::map::unique_maps	2365	=item cf::map::unique_maps
1663		2366
1664	Returns an arrayref of paths of all shared maps that have	2367	Returns an arrayref of paths of all shared maps that have
1665	instantiated unique items. May block.	2368	instantiated unique items. May block.
1666		2369
1667	=cut	2370	=cut
1668		2371
1669	sub unique_maps() {	2372	sub unique_maps() {
1670	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2373	[
1671	or return;	2374	map {
1672
1673	my @paths;
1674
1675	for (@$files) {
1676	utf8::decode $_;	2375	utf8::decode $_;
1677	next if /\.pst$/;	2376	s/\.map$//; # TODO future compatibility hack
1678	next unless /^$PATH_SEP/o;	2377	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1679		2378	? ()
1680	push @paths, cf::map::normalise $_;	2379	: normalise $_
		2380	} @{ aio_readdir $UNIQUEDIR or [] }
1681	}	2381	]
1682
1683	\@paths
1684	}	2382	}
1685		2383
1686	package cf;	2384	=item cf::map::static_maps
		2385
		2386	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2387	file in the shared directory excluding F</styles> and F</editor>). May
		2388	block.
		2389
		2390	=cut
		2391
		2392	sub static_maps() {
		2393	my @dirs = "";
		2394	my @maps;
		2395
		2396	while (@dirs) {
		2397	my $dir = shift @dirs;
		2398
		2399	next if $dir eq "/styles" || $dir eq "/editor";
		2400
		2401	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2402	or return;
		2403
		2404	for (@$files) {
		2405	s/\.map$// or next;
		2406	utf8::decode $_;
		2407	push @maps, "$dir/$_";
		2408	}
		2409
		2410	push @dirs, map "$dir/$_", @$dirs;
		2411	}
		2412
		2413	\@maps
		2414	}
1687		2415
1688	=back	2416	=back
1689		2417
1690	=head3 cf::object	2418	=head3 cf::object
1691		2419
…		…
1695		2423
1696	=over 4	2424	=over 4
1697		2425
1698	=item $ob->inv_recursive	2426	=item $ob->inv_recursive
1699		2427
1700	Returns the inventory of the object _and_ their inventories, recursively.	2428	Returns the inventory of the object I<and> their inventories, recursively,
		2429	but I<not> the object itself.
1701		2430
1702	=cut	2431	=cut
1703		2432
1704	sub inv_recursive_;	2433	sub inv_recursive_;
1705	sub inv_recursive_ {	2434	sub inv_recursive_ {
…		…
1708		2437
1709	sub inv_recursive {	2438	sub inv_recursive {
1710	inv_recursive_ inv $_[0]	2439	inv_recursive_ inv $_[0]
1711	}	2440	}
1712		2441
		2442	=item $ref = $ob->ref
		2443
		2444	Creates and returns a persistent reference to an object that can be stored as a string.
		2445
		2446	=item $ob = cf::object::deref ($refstring)
		2447
		2448	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2449	even if the object actually exists. May block.
		2450
		2451	=cut
		2452
		2453	sub deref {
		2454	my ($ref) = @_;
		2455
		2456	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2457	my ($uuid, $name) = ($1, $2);
		2458	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2459	or return;
		2460	$pl->ob->uuid eq $uuid
		2461	or return;
		2462
		2463	$pl->ob
		2464	} else {
		2465	warn "$ref: cannot resolve object reference\n";
		2466	undef
		2467	}
		2468	}
		2469
1713	package cf;	2470	package cf;
1714		2471
1715	=back	2472	=back
1716		2473
1717	=head3 cf::object::player	2474	=head3 cf::object::player
…		…
1723	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2480	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1724	can be C<undef>. Does the right thing when the player is currently in a	2481	can be C<undef>. Does the right thing when the player is currently in a
1725	dialogue with the given NPC character.	2482	dialogue with the given NPC character.
1726		2483
1727	=cut	2484	=cut
		2485
		2486	our $SAY_CHANNEL = {
		2487	id => "say",
		2488	title => "Map",
		2489	reply => "say ",
		2490	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2491	};
		2492
		2493	our $CHAT_CHANNEL = {
		2494	id => "chat",
		2495	title => "Chat",
		2496	reply => "chat ",
		2497	tooltip => "Player chat and shouts, global to the server.",
		2498	};
1728		2499
1729	# rough implementation of a future "reply" method that works	2500	# rough implementation of a future "reply" method that works
1730	# with dialog boxes.	2501	# with dialog boxes.
1731	#TODO: the first argument must go, split into a $npc->reply_to ( method	2502	#TODO: the first argument must go, split into a $npc->reply_to ( method
1732	sub cf::object::player::reply($$$;$) {	2503	sub cf::object::player::reply($$$;$) {
…		…
1734		2505
1735	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2506	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1736		2507
1737	if ($self->{record_replies}) {	2508	if ($self->{record_replies}) {
1738	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2509	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2510
1739	} else {	2511	} else {
		2512	my $pl = $self->contr;
		2513
		2514	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2515	my $dialog = $pl->{npc_dialog};
		2516	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2517
		2518	} else {
1740	$msg = $npc->name . " says: $msg" if $npc;	2519	$msg = $npc->name . " says: $msg" if $npc;
1741	$self->message ($msg, $flags);	2520	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2521	}
1742	}	2522	}
		2523	}
		2524
		2525	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2526
		2527	=cut
		2528
		2529	sub cf::object::send_msg {
		2530	my $pl = shift->contr
		2531	or return;
		2532	$pl->send_msg (@_);
1743	}	2533	}
1744		2534
1745	=item $player_object->may ("access")	2535	=item $player_object->may ("access")
1746		2536
1747	Returns wether the given player is authorized to access resource "access"	2537	Returns wether the given player is authorized to access resource "access"
…		…
1760		2550
1761	=item $player_object->enter_link	2551	=item $player_object->enter_link
1762		2552
1763	Freezes the player and moves him/her to a special map (C<{link}>).	2553	Freezes the player and moves him/her to a special map (C<{link}>).
1764		2554
1765	The player should be reasonably safe there for short amounts of time. You	2555	The player should be reasonably safe there for short amounts of time (e.g.
1766	I<MUST> call C<leave_link> as soon as possible, though.	2556	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2557	though, as the palyer cannot control the character while it is on the link
		2558	map.
1767		2559
1768	Will never block.	2560	Will never block.
1769		2561
1770	=item $player_object->leave_link ($map, $x, $y)	2562	=item $player_object->leave_link ($map, $x, $y)
1771		2563
…		…
1794	$self->deactivate_recursive;	2586	$self->deactivate_recursive;
1795		2587
1796	return if UNIVERSAL::isa $self->map, "ext::map_link";	2588	return if UNIVERSAL::isa $self->map, "ext::map_link";
1797		2589
1798	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2590	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1799	if $self->map;	2591	if $self->map && $self->map->{path} ne "{link}";
1800		2592
1801	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2593	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1802	}	2594	}
1803		2595
1804	sub cf::object::player::leave_link {	2596	sub cf::object::player::leave_link {
1805	my ($self, $map, $x, $y) = @_;	2597	my ($self, $map, $x, $y) = @_;
		2598
		2599	return unless $self->contr->active;
1806		2600
1807	my $link_pos = delete $self->{_link_pos};	2601	my $link_pos = delete $self->{_link_pos};
1808		2602
1809	unless ($map) {	2603	unless ($map) {
1810	# restore original map position	2604	# restore original map position
…		…
1821	($x, $y) = (-1, -1)	2615	($x, $y) = (-1, -1)
1822	unless (defined $x) && (defined $y);	2616	unless (defined $x) && (defined $y);
1823		2617
1824	# use -1 or undef as default coordinates, not 0, 0	2618	# use -1 or undef as default coordinates, not 0, 0
1825	($x, $y) = ($map->enter_x, $map->enter_y)	2619	($x, $y) = ($map->enter_x, $map->enter_y)
1826	if $x <=0 && $y <= 0;	2620	if $x <= 0 && $y <= 0;
1827		2621
1828	$map->load;	2622	$map->load;
1829	$map->load_diag;	2623	$map->load_neighbours;
1830		2624
1831	return unless $self->contr->active;	2625	return unless $self->contr->active;
1832	$self->activate_recursive;
1833		2626
1834	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2627	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1835	$self->enter_map ($map, $x, $y);	2628	$self->enter_map ($map, $x, $y);
1836	}
1837		2629
1838	cf::player->attach (	2630	# only activate afterwards, to support waiting in hooks
1839	on_logout => sub {	2631	$self->activate_recursive;
1840	my ($pl) = @_;	2632	}
1841		2633
1842	# abort map switching before logout	2634	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1843	if ($pl->ob->{_link_pos}) {
1844	cf::sync_job {
1845	$pl->ob->leave_link
1846	};
1847	}
1848	},
1849	on_login => sub {
1850	my ($pl) = @_;
1851		2635
1852	# try to abort aborted map switching on player login :)	2636	Moves the player to the given map-path and coordinates by first freezing
1853	# should happen only on crashes	2637	her, loading and preparing them map, calling the provided $check callback
1854	if ($pl->ob->{_link_pos}) {	2638	that has to return the map if sucecssful, and then unfreezes the player on
1855	$pl->ob->enter_link;	2639	the new (success) or old (failed) map position. In either case, $done will
1856	(async {	2640	be called at the end of this process.
1857	$pl->ob->reply (undef,
1858	"There was an internal problem at your last logout, "
1859	. "the server will try to bring you to your intended destination in a second.",
1860	cf::NDI_RED);
1861	# we need this sleep as the login has a concurrent enter_exit running
1862	# and this sleep increases chances of the player not ending up in scorn
1863	Coro::Timer::sleep 1;
1864	$pl->ob->leave_link;
1865	})->prio (2);
1866	}
1867	},
1868	);
1869		2641
1870	=item $player_object->goto ($path, $x, $y)	2642	Note that $check will be called with a potentially non-loaded map, so if
		2643	it needs a loaded map it has to call C<< ->load >>.
1871		2644
1872	=cut	2645	=cut
		2646
		2647	our $GOTOGEN;
1873		2648
1874	sub cf::object::player::goto {	2649	sub cf::object::player::goto {
1875	my ($self, $path, $x, $y) = @_;	2650	my ($self, $path, $x, $y, $check, $done) = @_;
		2651
		2652	# do generation counting so two concurrent goto's will be executed in-order
		2653	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1876		2654
1877	$self->enter_link;	2655	$self->enter_link;
1878		2656
1879	(async {	2657	(async {
		2658	$Coro::current->{desc} = "player::goto $path $x $y";
		2659
		2660	# *tag paths override both path and x|y
		2661	if ($path =~ /^\*(.*)$/) {
		2662	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2663	my $ob = $obs[rand @obs];
		2664
		2665	# see if we actually can go there
		2666	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2667	$ob = $obs[rand @obs];
		2668	} else {
		2669	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2670	}
		2671	# else put us there anyways for now #d#
		2672
		2673	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2674	} else {
		2675	($path, $x, $y) = (undef, undef, undef);
		2676	}
		2677	}
		2678
1880	my $map = eval {	2679	my $map = eval {
1881	my $map = cf::map::find $path;	2680	my $map = defined $path ? cf::map::find $path : undef;
		2681
		2682	if ($map) {
1882	$map = $map->customise_for ($self) if $map;	2683	$map = $map->customise_for ($self);
		2684	$map = $check->($map) if $check && $map;
		2685	} else {
		2686	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2687	}
		2688
1883	$map	2689	$map
		2690	};
		2691
		2692	if ($@) {
		2693	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2694	LOG llevError | logBacktrace, Carp::longmess $@;
1884	} or	2695	}
1885	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1886		2696
		2697	if ($gen == $self->{_goto_generation}) {
		2698	delete $self->{_goto_generation};
1887	$self->leave_link ($map, $x, $y);	2699	$self->leave_link ($map, $x, $y);
		2700	}
		2701
		2702	$done->() if $done;
1888	})->prio (1);	2703	})->prio (1);
1889	}	2704	}
1890		2705
1891	=item $player_object->enter_exit ($exit_object)	2706	=item $player_object->enter_exit ($exit_object)
1892		2707
…		…
1912	}	2727	}
1913		2728
1914	sub prepare_random_map {	2729	sub prepare_random_map {
1915	my ($exit) = @_;	2730	my ($exit) = @_;
1916		2731
1917	my $guard = cf::lock_acquire "exit_prepare:$exit";
1918
1919	# all this does is basically replace the /! path by	2732	# all this does is basically replace the /! path by
1920	# a new random map path (?random/...) with a seed	2733	# a new random map path (?random/...) with a seed
1921	# that depends on the exit object	2734	# that depends on the exit object
1922		2735
1923	my $rmp = parse_random_map_params $exit->msg;	2736	my $rmp = parse_random_map_params $exit->msg;
…		…
1925	if ($exit->map) {	2738	if ($exit->map) {
1926	$rmp->{region} = $exit->region->name;	2739	$rmp->{region} = $exit->region->name;
1927	$rmp->{origin_map} = $exit->map->path;	2740	$rmp->{origin_map} = $exit->map->path;
1928	$rmp->{origin_x} = $exit->x;	2741	$rmp->{origin_x} = $exit->x;
1929	$rmp->{origin_y} = $exit->y;	2742	$rmp->{origin_y} = $exit->y;
		2743
		2744	$exit->map->touch;
1930	}	2745	}
1931		2746
1932	$rmp->{random_seed} ||= $exit->random_seed;	2747	$rmp->{random_seed} ||= $exit->random_seed;
1933		2748
1934	my $data = cf::to_json $rmp;	2749	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1935	my $md5 = Digest::MD5::md5_hex $data;	2750	my $md5 = Digest::MD5::md5_hex $data;
1936	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2751	my $meta = "$RANDOMDIR/$md5.meta";
1937		2752
1938	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2753	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1939	aio_write $fh, 0, (length $data), $data, 0;	2754	aio_write $fh, 0, (length $data), $data, 0;
1940	undef $fh;	2755	undef $fh;
1941	aio_rename "$meta~", $meta;	2756	aio_rename "$meta~", $meta;
1942		2757
		2758	my $slaying = "?random/$md5";
		2759
		2760	if ($exit->valid) {
1943	$exit->slaying ("?random/$md5");	2761	$exit->slaying ("?random/$md5");
1944	$exit->msg (undef);	2762	$exit->msg (undef);
		2763	}
1945	}	2764	}
1946	}	2765	}
1947		2766
1948	sub cf::object::player::enter_exit {	2767	sub cf::object::player::enter_exit {
1949	my ($self, $exit) = @_;	2768	my ($self, $exit) = @_;
1950		2769
1951	return unless $self->type == cf::PLAYER;	2770	return unless $self->type == cf::PLAYER;
1952		2771
1953	if ($exit->slaying eq "/!") {
1954	#TODO: this should de-fi-ni-te-ly not be a sync-job
1955	cf::sync_job { prepare_random_map $exit };
1956	}
1957
1958	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1959	my $hp = $exit->stats->hp;
1960	my $sp = $exit->stats->sp;
1961
1962	$self->enter_link;	2772	$self->enter_link;
1963		2773
1964	(async {	2774	(async {
1965	$self->deactivate_recursive; # just to be sure	2775	$Coro::current->{desc} = "enter_exit";
		2776
1966	unless (eval {	2777	unless (eval {
		2778	$self->deactivate_recursive; # just to be sure
		2779
		2780	# random map handling
		2781	{
		2782	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2783
		2784	prepare_random_map $exit
		2785	if $exit->slaying eq "/!";
		2786	}
		2787
		2788	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2789	my $x = $exit->stats->hp;
		2790	my $y = $exit->stats->sp;
		2791
1967	$self->goto ($slaying, $hp, $sp);	2792	$self->goto ($map, $x, $y);
1968		2793
		2794	# if exit is damned, update players death & WoR home-position
		2795	$self->contr->savebed ($map, $x, $y)
		2796	if $exit->flag (cf::FLAG_DAMNED);
		2797
1969	1;	2798	1
1970	}) {	2799	}) {
1971	$self->message ("Something went wrong deep within the crossfire server. "	2800	$self->message ("Something went wrong deep within the deliantra server. "
1972	. "I'll try to bring you back to the map you were before. "	2801	. "I'll try to bring you back to the map you were before. "
1973	. "Please report this to the dungeon master!",	2802	. "Please report this to the dungeon master!",
1974	cf::NDI_UNIQUE | cf::NDI_RED);	2803	cf::NDI_UNIQUE | cf::NDI_RED);
1975		2804
1976	warn "ERROR in enter_exit: $@";	2805	warn "ERROR in enter_exit: $@";
1977	$self->leave_link;	2806	$self->leave_link;
1978	}	2807	}
1979	})->prio (1);	2808	})->prio (1);
…		…
1992		2821
1993	sub cf::client::send_drawinfo {	2822	sub cf::client::send_drawinfo {
1994	my ($self, $text, $flags) = @_;	2823	my ($self, $text, $flags) = @_;
1995		2824
1996	utf8::encode $text;	2825	utf8::encode $text;
1997	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2826	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1998	}	2827	}
1999		2828
		2829	=item $client->send_big_packet ($pkt)
		2830
		2831	Like C<send_packet>, but tries to compress large packets, and fragments
		2832	them as required.
		2833
		2834	=cut
		2835
		2836	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2837
		2838	sub cf::client::send_big_packet {
		2839	my ($self, $pkt) = @_;
		2840
		2841	# try lzf for large packets
		2842	$pkt = "lzf " . Compress::LZF::compress $pkt
		2843	if 1024 <= length $pkt and $self->{can_lzf};
		2844
		2845	# split very large packets
		2846	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2847	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2848	$pkt = "frag";
		2849	}
		2850
		2851	$self->send_packet ($pkt);
		2852	}
		2853
		2854	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2855
		2856	Send a drawinfo or msg packet to the client, formatting the msg for the
		2857	client if neccessary. C<$type> should be a string identifying the type of
		2858	the message, with C<log> being the default. If C<$color> is negative, suppress
		2859	the message unless the client supports the msg packet.
		2860
		2861	=cut
		2862
		2863	# non-persistent channels (usually the info channel)
		2864	our %CHANNEL = (
		2865	"c/motd" => {
		2866	id => "infobox",
		2867	title => "MOTD",
		2868	reply => undef,
		2869	tooltip => "The message of the day",
		2870	},
		2871	"c/identify" => {
		2872	id => "infobox",
		2873	title => "Identify",
		2874	reply => undef,
		2875	tooltip => "Items recently identified",
		2876	},
		2877	"c/examine" => {
		2878	id => "infobox",
		2879	title => "Examine",
		2880	reply => undef,
		2881	tooltip => "Signs and other items you examined",
		2882	},
		2883	"c/shopinfo" => {
		2884	id => "infobox",
		2885	title => "Shop Info",
		2886	reply => undef,
		2887	tooltip => "What your bargaining skill tells you about the shop",
		2888	},
		2889	"c/book" => {
		2890	id => "infobox",
		2891	title => "Book",
		2892	reply => undef,
		2893	tooltip => "The contents of a note or book",
		2894	},
		2895	"c/lookat" => {
		2896	id => "infobox",
		2897	title => "Look",
		2898	reply => undef,
		2899	tooltip => "What you saw there",
		2900	},
		2901	"c/who" => {
		2902	id => "infobox",
		2903	title => "Players",
		2904	reply => undef,
		2905	tooltip => "Shows players who are currently online",
		2906	},
		2907	"c/body" => {
		2908	id => "infobox",
		2909	title => "Body Parts",
		2910	reply => undef,
		2911	tooltip => "Shows which body parts you posess and are available",
		2912	},
		2913	"c/statistics" => {
		2914	id => "infobox",
		2915	title => "Statistics",
		2916	reply => undef,
		2917	tooltip => "Shows your primary statistics",
		2918	},
		2919	"c/skills" => {
		2920	id => "infobox",
		2921	title => "Skills",
		2922	reply => undef,
		2923	tooltip => "Shows your experience per skill and item power",
		2924	},
		2925	"c/shopitems" => {
		2926	id => "infobox",
		2927	title => "Shop Items",
		2928	reply => undef,
		2929	tooltip => "Shows the items currently for sale in this shop",
		2930	},
		2931	"c/resistances" => {
		2932	id => "infobox",
		2933	title => "Resistances",
		2934	reply => undef,
		2935	tooltip => "Shows your resistances",
		2936	},
		2937	"c/pets" => {
		2938	id => "infobox",
		2939	title => "Pets",
		2940	reply => undef,
		2941	tooltip => "Shows information abotu your pets/a specific pet",
		2942	},
		2943	"c/perceiveself" => {
		2944	id => "infobox",
		2945	title => "Perceive Self",
		2946	reply => undef,
		2947	tooltip => "You gained detailed knowledge about yourself",
		2948	},
		2949	"c/uptime" => {
		2950	id => "infobox",
		2951	title => "Uptime",
		2952	reply => undef,
		2953	tooltip => "How long the server has been running since last restart",
		2954	},
		2955	"c/mapinfo" => {
		2956	id => "infobox",
		2957	title => "Map Info",
		2958	reply => undef,
		2959	tooltip => "Information related to the maps",
		2960	},
		2961	"c/party" => {
		2962	id => "party",
		2963	title => "Party",
		2964	reply => "gsay ",
		2965	tooltip => "Messages and chat related to your party",
		2966	},
		2967	"c/death" => {
		2968	id => "death",
		2969	title => "Death",
		2970	reply => undef,
		2971	tooltip => "Reason for and more info about your most recent death",
		2972	},
		2973	"c/say" => $SAY_CHANNEL,
		2974	"c/chat" => $CHAT_CHANNEL,
		2975	);
		2976
		2977	sub cf::client::send_msg {
		2978	my ($self, $channel, $msg, $color, @extra) = @_;
		2979
		2980	$msg = $self->pl->expand_cfpod ($msg)
		2981	unless $color & cf::NDI_VERBATIM;
		2982
		2983	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2984
		2985	# check predefined channels, for the benefit of C
		2986	if ($CHANNEL{$channel}) {
		2987	$channel = $CHANNEL{$channel};
		2988
		2989	$self->ext_msg (channel_info => $channel);
		2990	$channel = $channel->{id};
		2991
		2992	} elsif (ref $channel) {
		2993	# send meta info to client, if not yet sent
		2994	unless (exists $self->{channel}{$channel->{id}}) {
		2995	$self->{channel}{$channel->{id}} = $channel;
		2996	$self->ext_msg (channel_info => $channel);
		2997	}
		2998
		2999	$channel = $channel->{id};
		3000	}
		3001
		3002	return unless @extra || length $msg;
		3003
		3004	# default colour, mask it out
		3005	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3006	if $color & cf::NDI_DEF;
		3007
		3008	my $pkt = "msg "
		3009	. $self->{json_coder}->encode (
		3010	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3011	);
		3012
		3013	$self->send_big_packet ($pkt);
		3014	}
		3015
		3016	=item $client->ext_msg ($type, @msg)
		3017
		3018	Sends an ext event to the client.
		3019
		3020	=cut
		3021
		3022	sub cf::client::ext_msg($$@) {
		3023	my ($self, $type, @msg) = @_;
		3024
		3025	if ($self->extcmd == 2) {
		3026	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3027	} elsif ($self->extcmd == 1) { # TODO: remove
		3028	push @msg, msgtype => "event_$type";
		3029	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3030	}
		3031	}
		3032
		3033	=item $client->ext_reply ($msgid, @msg)
		3034
		3035	Sends an ext reply to the client.
		3036
		3037	=cut
		3038
		3039	sub cf::client::ext_reply($$@) {
		3040	my ($self, $id, @msg) = @_;
		3041
		3042	if ($self->extcmd == 2) {
		3043	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3044	} elsif ($self->extcmd == 1) {
		3045	#TODO: version 1, remove
		3046	unshift @msg, msgtype => "reply", msgid => $id;
		3047	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3048	}
		3049	}
2000		3050
2001	=item $success = $client->query ($flags, "text", \&cb)	3051	=item $success = $client->query ($flags, "text", \&cb)
2002		3052
2003	Queues a query to the client, calling the given callback with	3053	Queues a query to the client, calling the given callback with
2004	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3054	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2005	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3055	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2006		3056
2007	Queries can fail, so check the return code. Or don't, as queries will become	3057	Queries can fail, so check the return code. Or don't, as queries will
2008	reliable at some point in the future.	3058	become reliable at some point in the future.
2009		3059
2010	=cut	3060	=cut
2011		3061
2012	sub cf::client::query {	3062	sub cf::client::query {
2013	my ($self, $flags, $text, $cb) = @_;	3063	my ($self, $flags, $text, $cb) = @_;
…		…
2021	utf8::encode $text;	3071	utf8::encode $text;
2022	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3072	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2023		3073
2024	$self->send_packet ($self->{query_queue}[0][0])	3074	$self->send_packet ($self->{query_queue}[0][0])
2025	if @{ $self->{query_queue} } == 1;	3075	if @{ $self->{query_queue} } == 1;
		3076
		3077	1
2026	}	3078	}
2027		3079
2028	cf::client->attach (	3080	cf::client->attach (
		3081	on_connect => sub {
		3082	my ($ns) = @_;
		3083
		3084	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3085	},
2029	on_reply => sub {	3086	on_reply => sub {
2030	my ($ns, $msg) = @_;	3087	my ($ns, $msg) = @_;
2031		3088
2032	# this weird shuffling is so that direct followup queries	3089	# this weird shuffling is so that direct followup queries
2033	# get handled first	3090	# get handled first
…		…
2045	} else {	3102	} else {
2046	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3103	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2047	}	3104	}
2048	}	3105	}
2049	},	3106	},
		3107	on_exticmd => sub {
		3108	my ($ns, $buf) = @_;
		3109
		3110	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3111
		3112	if (ref $msg) {
		3113	my ($type, $reply, @payload) =
		3114	"ARRAY" eq ref $msg
		3115	? @$msg
		3116	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3117
		3118	my @reply;
		3119
		3120	if (my $cb = $EXTICMD{$type}) {
		3121	@reply = $cb->($ns, @payload);
		3122	}
		3123
		3124	$ns->ext_reply ($reply, @reply)
		3125	if $reply;
		3126
		3127	} else {
		3128	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3129	}
		3130
		3131	cf::override;
		3132	},
2050	);	3133	);
2051		3134
2052	=item $client->async (\&cb)	3135	=item $client->async (\&cb)
2053		3136
2054	Create a new coroutine, running the specified callback. The coroutine will	3137	Create a new coroutine, running the specified callback. The coroutine will
…		…
2070		3153
2071	$coro	3154	$coro
2072	}	3155	}
2073		3156
2074	cf::client->attach (	3157	cf::client->attach (
2075	on_destroy => sub {	3158	on_client_destroy => sub {
2076	my ($ns) = @_;	3159	my ($ns) = @_;
2077		3160
2078	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3161	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2079	},	3162	},
2080	);	3163	);
…		…
2095	our $safe = new Safe "safe";	3178	our $safe = new Safe "safe";
2096	our $safe_hole = new Safe::Hole;	3179	our $safe_hole = new Safe::Hole;
2097		3180
2098	$SIG{FPE} = 'IGNORE';	3181	$SIG{FPE} = 'IGNORE';
2099		3182
2100	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3183	$safe->permit_only (Opcode::opset qw(
		3184	:base_core :base_mem :base_orig :base_math :base_loop
		3185	grepstart grepwhile mapstart mapwhile
		3186	sort time
		3187	));
2101		3188
2102	# here we export the classes and methods available to script code	3189	# here we export the classes and methods available to script code
2103		3190
2104	=pod	3191	=pod
2105		3192
2106	The following fucntions and emthods are available within a safe environment:	3193	The following functions and methods are available within a safe environment:
2107		3194
2108	cf::object contr pay_amount pay_player map	3195	cf::object
		3196	contr pay_amount pay_player map x y force_find force_add destroy
		3197	insert remove name archname title slaying race decrease split
		3198	value
		3199
2109	cf::object::player player	3200	cf::object::player
2110	cf::player peaceful	3201	player
2111	cf::map trigger	3202
		3203	cf::player
		3204	peaceful
		3205
		3206	cf::map
		3207	trigger
2112		3208
2113	=cut	3209	=cut
2114		3210
2115	for (	3211	for (
2116	["cf::object" => qw(contr pay_amount pay_player map)],	3212	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3213	insert remove inv nrof name archname title slaying race
		3214	decrease split destroy change_exp value msg lore send_msg)],
2117	["cf::object::player" => qw(player)],	3215	["cf::object::player" => qw(player)],
2118	["cf::player" => qw(peaceful)],	3216	["cf::player" => qw(peaceful send_msg)],
2119	["cf::map" => qw(trigger)],	3217	["cf::map" => qw(trigger)],
2120	) {	3218	) {
2121	no strict 'refs';	3219	no strict 'refs';
2122	my ($pkg, @funs) = @$_;	3220	my ($pkg, @funs) = @$_;
2123	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3221	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2141		3239
2142	my $qcode = $code;	3240	my $qcode = $code;
2143	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3241	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2144	$qcode =~ s/\n/\\n/g;	3242	$qcode =~ s/\n/\\n/g;
2145		3243
		3244	%vars = (_dummy => 0) unless %vars;
		3245
		3246	my @res;
2146	local $_;	3247	local $_;
2147	local @safe::cf::_safe_eval_args = values %vars;
2148		3248
2149	my $eval =	3249	my $eval =
2150	"do {\n"	3250	"do {\n"
2151	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3251	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2152	. "#line 0 \"{$qcode}\"\n"	3252	. "#line 0 \"{$qcode}\"\n"
2153	. $code	3253	. $code
2154	. "\n}"	3254	. "\n}"
2155	;	3255	;
2156		3256
		3257	if ($CFG{safe_eval}) {
2157	sub_generation_inc;	3258	sub_generation_inc;
		3259	local @safe::cf::_safe_eval_args = values %vars;
2158	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3260	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2159	sub_generation_inc;	3261	sub_generation_inc;
		3262	} else {
		3263	local @cf::_safe_eval_args = values %vars;
		3264	@res = wantarray ? eval eval : scalar eval $eval;
		3265	}
2160		3266
2161	if ($@) {	3267	if ($@) {
2162	warn "$@";	3268	warn "$@";
2163	warn "while executing safe code '$code'\n";	3269	warn "while executing safe code '$code'\n";
2164	warn "with arguments " . (join " ", %vars) . "\n";	3270	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2183	=cut	3289	=cut
2184		3290
2185	sub register_script_function {	3291	sub register_script_function {
2186	my ($fun, $cb) = @_;	3292	my ($fun, $cb) = @_;
2187		3293
2188	no strict 'refs';	3294	$fun = "safe::$fun" if $CFG{safe_eval};
2189	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3295	*$fun = $safe_hole->wrap ($cb);
2190	}	3296	}
2191		3297
2192	=back	3298	=back
2193		3299
2194	=cut	3300	=cut
2195
2196	#############################################################################
2197
2198	=head2 EXTENSION DATABASE SUPPORT
2199
2200	Crossfire maintains a very simple database for extension use. It can
2201	currently store anything that can be serialised using Storable, which
2202	excludes objects.
2203
2204	The parameter C<$family> should best start with the name of the extension
2205	using it, it should be unique.
2206
2207	=over 4
2208
2209	=item $value = cf::db_get $family => $key
2210
2211	Returns a single value from the database.
2212
2213	=item cf::db_put $family => $key => $value
2214
2215	Stores the given C<$value> in the family.
2216
2217	=cut
2218
2219	our $DB;
2220
2221	sub db_init {
2222	unless ($DB) {
2223	$DB = BDB::db_create $DB_ENV;
2224
2225	cf::sync_job {
2226	eval {
2227	$DB->set_flags (BDB::CHKSUM);
2228
2229	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2230	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2231	cf::cleanup "db_open(db): $!" if $!;
2232	};
2233	cf::cleanup "db_open(db): $@" if $@;
2234	};
2235
2236	my $path = cf::localdir . "/database.pst";
2237	if (stat $path) {
2238	cf::sync_job {
2239	my $pst = Storable::retrieve $path;
2240
2241	cf::db_put (board => data => $pst->{board});
2242	cf::db_put (guildrules => data => $pst->{guildrules});
2243	cf::db_put (rent => balance => $pst->{rent}{balance});
2244	BDB::db_env_txn_checkpoint $DB_ENV;
2245
2246	unlink $path;
2247	};
2248	}
2249	}
2250	}
2251
2252	sub db_get($$) {
2253	my $key = "$_[0]/$_[1]";
2254
2255	cf::sync_job {
2256	BDB::db_get $DB, undef, $key, my $data;
2257
2258	$! ? ()
2259	: Compress::LZF::sthaw $data
2260	}
2261	}
2262
2263	sub db_put($$$) {
2264	BDB::dbreq_pri 4;
2265	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2266	}
2267		3301
2268	#############################################################################	3302	#############################################################################
2269	# the server's init and main functions	3303	# the server's init and main functions
2270		3304
2271	sub init_resources {	3305	sub load_facedata($) {
2272	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3306	my ($path) = @_;
		3307
		3308	# HACK to clear player env face cache, we need some signal framework
		3309	# for this (global event?)
		3310	%ext::player_env::MUSIC_FACE_CACHE = ();
		3311
		3312	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3313
		3314	warn "loading facedata from $path\n";
		3315
		3316	my $facedata;
		3317	0 < aio_load $path, $facedata
		3318	or die "$path: $!";
		3319
		3320	$facedata = Coro::Storable::thaw $facedata;
		3321
		3322	$facedata->{version} == 2
		3323	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3324
		3325	# patch in the exptable
		3326	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3327	$facedata->{resource}{"res/exp_table"} = {
		3328	type => FT_RSRC,
		3329	data => $exp_table,
		3330	hash => (Digest::MD5::md5 $exp_table),
		3331	};
		3332	cf::cede_to_tick;
		3333
		3334	{
		3335	my $faces = $facedata->{faceinfo};
		3336
		3337	while (my ($face, $info) = each %$faces) {
		3338	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3339
		3340	cf::face::set_visibility $idx, $info->{visibility};
		3341	cf::face::set_magicmap $idx, $info->{magicmap};
		3342	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3343	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3344
		3345	cf::cede_to_tick;
		3346	}
		3347
		3348	while (my ($face, $info) = each %$faces) {
		3349	next unless $info->{smooth};
		3350
		3351	my $idx = cf::face::find $face
		3352	or next;
		3353
		3354	if (my $smooth = cf::face::find $info->{smooth}) {
		3355	cf::face::set_smooth $idx, $smooth;
		3356	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3357	} else {
		3358	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3359	}
		3360
		3361	cf::cede_to_tick;
		3362	}
		3363	}
		3364
		3365	{
		3366	my $anims = $facedata->{animinfo};
		3367
		3368	while (my ($anim, $info) = each %$anims) {
		3369	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3370	cf::cede_to_tick;
		3371	}
		3372
		3373	cf::anim::invalidate_all; # d'oh
		3374	}
		3375
		3376	{
		3377	my $res = $facedata->{resource};
		3378
		3379	while (my ($name, $info) = each %$res) {
		3380	if (defined $info->{type}) {
		3381	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3382
		3383	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3384	cf::face::set_type $idx, $info->{type};
		3385	} else {
		3386	$RESOURCE{$name} = $info;
		3387	}
		3388
		3389	cf::cede_to_tick;
		3390	}
		3391	}
		3392
		3393	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3394
		3395	1
		3396	}
		3397
		3398	cf::global->attach (on_resource_update => sub {
		3399	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3400	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3401
		3402	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3403	my $sound = $soundconf->{compat}[$_]
		3404	or next;
		3405
		3406	my $face = cf::face::find "sound/$sound->[1]";
		3407	cf::sound::set $sound->[0] => $face;
		3408	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3409	}
		3410
		3411	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3412	my $face = cf::face::find "sound/$v";
		3413	cf::sound::set $k => $face;
		3414	}
		3415	}
		3416	});
		3417
		3418	register_exticmd fx_want => sub {
		3419	my ($ns, $want) = @_;
		3420
		3421	while (my ($k, $v) = each %$want) {
		3422	$ns->fx_want ($k, $v);
		3423	}
		3424	};
		3425
		3426	sub load_resource_file($) {
		3427	my $guard = lock_acquire "load_resource_file";
		3428
		3429	my $status = load_resource_file_ $_[0];
		3430	get_slot 0.1, 100;
		3431	cf::arch::commit_load;
		3432
		3433	$status
		3434	}
		3435
		3436	sub reload_regions {
		3437	# HACK to clear player env face cache, we need some signal framework
		3438	# for this (global event?)
		3439	%ext::player_env::MUSIC_FACE_CACHE = ();
		3440
		3441	load_resource_file "$MAPDIR/regions"
2273	or die "unable to load regions file\n";#d#	3442	or die "unable to load regions file\n";
2274	}
2275		3443
2276	sub cfg_load {	3444	for (cf::region::list) {
		3445	$_->{match} = qr/$_->{match}/
		3446	if exists $_->{match};
		3447	}
		3448	}
		3449
		3450	sub reload_facedata {
		3451	load_facedata "$DATADIR/facedata"
		3452	or die "unable to load facedata\n";
		3453	}
		3454
		3455	sub reload_archetypes {
		3456	load_resource_file "$DATADIR/archetypes"
		3457	or die "unable to load archetypes\n";
		3458	}
		3459
		3460	sub reload_treasures {
		3461	load_resource_file "$DATADIR/treasures"
		3462	or die "unable to load treasurelists\n";
		3463	}
		3464
		3465	sub reload_resources {
		3466	warn "reloading resource files...\n";
		3467
		3468	reload_facedata;
		3469	reload_archetypes;
		3470	reload_regions;
		3471	reload_treasures;
		3472
		3473	warn "finished reloading resource files\n";
		3474	}
		3475
		3476	sub reload_config {
		3477	warn "reloading config file...\n";
		3478
2277	open my $fh, "<:utf8", cf::confdir . "/config"	3479	open my $fh, "<:utf8", "$CONFDIR/config"
2278	or return;	3480	or return;
2279		3481
2280	local $/;	3482	local $/;
2281	*CFG = YAML::Syck::Load <$fh>;	3483	*CFG = YAML::XS::Load scalar <$fh>;
2282		3484
2283	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3485	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2284		3486
2285	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3487	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2286	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3488	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2290	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3492	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2291	and die "WARNING: m(un)lockall failed: $!\n";	3493	and die "WARNING: m(un)lockall failed: $!\n";
2292	};	3494	};
2293	warn $@ if $@;	3495	warn $@ if $@;
2294	}	3496	}
2295	}
2296		3497
2297	sub init {	3498	warn "finished reloading resource files\n";
2298	init_resources;	3499	}
		3500
		3501	sub pidfile() {
		3502	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3503	or die "$PIDFILE: $!";
		3504	flock $fh, &Fcntl::LOCK_EX
		3505	or die "$PIDFILE: flock: $!";
		3506	$fh
		3507	}
		3508
		3509	# make sure only one server instance is running at any one time
		3510	sub atomic {
		3511	my $fh = pidfile;
		3512
		3513	my $pid = <$fh>;
		3514	kill 9, $pid if $pid > 0;
		3515
		3516	seek $fh, 0, 0;
		3517	print $fh $$;
		3518	}
		3519
		3520	sub main_loop {
		3521	warn "EV::loop starting\n";
		3522	if (1) {
		3523	EV::loop;
		3524	}
		3525	warn "EV::loop returned\n";
		3526	goto &main_loop unless $REALLY_UNLOOP;
2299	}	3527	}
2300		3528
2301	sub main {	3529	sub main {
		3530	cf::init_globals; # initialise logging
		3531
		3532	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3533	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3534	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3535	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3536
		3537	cf::init_experience;
		3538	cf::init_anim;
		3539	cf::init_attackmess;
		3540	cf::init_dynamic;
		3541
		3542	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3543
2302	# we must not ever block the main coroutine	3544	# we must not ever block the main coroutine
2303	local $Coro::idle = sub {	3545	local $Coro::idle = sub {
2304	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3546	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2305	(async {	3547	(async {
2306	Event::one_event;	3548	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3549	EV::loop EV::LOOP_ONESHOT;
2307	})->prio (Coro::PRIO_MAX);	3550	})->prio (Coro::PRIO_MAX);
2308	};	3551	};
2309		3552
2310	cfg_load;	3553	evthread_start IO::AIO::poll_fileno;
		3554
		3555	cf::sync_job {
		3556	cf::load_settings;
		3557	cf::load_materials;
		3558
		3559	reload_resources;
		3560	reload_config;
2311	db_init;	3561	db_init;
		3562
		3563	cf::init_uuid;
		3564	cf::init_signals;
		3565	cf::init_skills;
		3566
		3567	cf::init_beforeplay;
		3568
		3569	atomic;
		3570
2312	load_extensions;	3571	load_extensions;
2313		3572
2314	$TICK_WATCHER->start;	3573	utime time, time, $RUNTIMEFILE;
2315	Event::loop;	3574
		3575	# no (long-running) fork's whatsoever before this point(!)
		3576	use POSIX ();
		3577	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3578
		3579	(pop @POST_INIT)->(0) while @POST_INIT;
		3580	};
		3581
		3582	main_loop;
2316	}	3583	}
2317		3584
2318	#############################################################################	3585	#############################################################################
2319	# initialisation and cleanup	3586	# initialisation and cleanup
2320		3587
2321	# install some emergency cleanup handlers	3588	# install some emergency cleanup handlers
2322	BEGIN {	3589	BEGIN {
		3590	our %SIGWATCHER = ();
2323	for my $signal (qw(INT HUP TERM)) {	3591	for my $signal (qw(INT HUP TERM)) {
2324	Event->signal (	3592	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2325	reentrant => 0,
2326	data => WF_AUTOCANCEL,
2327	signal => $signal,
2328	prio => 0,
2329	cb => sub {
2330	cf::cleanup "SIG$signal";	3593	cf::cleanup "SIG$signal";
2331	},
2332	);	3594	};
		3595	}
		3596	}
		3597
		3598	sub write_runtime_sync {
		3599	my $t0 = AE::time;
		3600
		3601	# first touch the runtime file to show we are still running:
		3602	# the fsync below can take a very very long time.
		3603
		3604	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3605
		3606	my $guard = cf::lock_acquire "write_runtime";
		3607
		3608	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3609	or return;
		3610
		3611	my $value = $cf::RUNTIME + 90 + 10;
		3612	# 10 is the runtime save interval, for a monotonic clock
		3613	# 60 allows for the watchdog to kill the server.
		3614
		3615	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3616	and return;
		3617
		3618	# always fsync - this file is important
		3619	aio_fsync $fh
		3620	and return;
		3621
		3622	# touch it again to show we are up-to-date
		3623	aio_utime $fh, undef, undef;
		3624
		3625	close $fh
		3626	or return;
		3627
		3628	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3629	and return;
		3630
		3631	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3632
2333	}	3633	1
		3634	}
		3635
		3636	our $uuid_lock;
		3637	our $uuid_skip;
		3638
		3639	sub write_uuid_sync($) {
		3640	$uuid_skip ||= $_[0];
		3641
		3642	return if $uuid_lock;
		3643	local $uuid_lock = 1;
		3644
		3645	my $uuid = "$LOCALDIR/uuid";
		3646
		3647	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3648	or return;
		3649
		3650	my $value = uuid_seq uuid_cur;
		3651
		3652	unless ($value) {
		3653	warn "cowardly refusing to write zero uuid value!\n";
		3654	return;
		3655	}
		3656
		3657	my $value = uuid_str $value + $uuid_skip;
		3658	$uuid_skip = 0;
		3659
		3660	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3661	and return;
		3662
		3663	# always fsync - this file is important
		3664	aio_fsync $fh
		3665	and return;
		3666
		3667	close $fh
		3668	or return;
		3669
		3670	aio_rename "$uuid~", $uuid
		3671	and return;
		3672
		3673	warn "uuid file written ($value).\n";
		3674
		3675	1
		3676
		3677	}
		3678
		3679	sub write_uuid($$) {
		3680	my ($skip, $sync) = @_;
		3681
		3682	$sync ? write_uuid_sync $skip
		3683	: async { write_uuid_sync $skip };
2334	}	3684	}
2335		3685
2336	sub emergency_save() {	3686	sub emergency_save() {
2337	my $freeze_guard = cf::freeze_mainloop;	3687	my $freeze_guard = cf::freeze_mainloop;
2338		3688
2339	warn "enter emergency perl save\n";	3689	warn "emergency_perl_save: enter\n";
2340		3690
2341	cf::sync_job {	3691	cf::sync_job {
		3692	# this is a trade-off: we want to be very quick here, so
		3693	# save all maps without fsync, and later call a global sync
		3694	# (which in turn might be very very slow)
		3695	local $USE_FSYNC = 0;
		3696
2342	# use a peculiar iteration method to avoid tripping on perl	3697	# use a peculiar iteration method to avoid tripping on perl
2343	# refcount bugs in for. also avoids problems with players	3698	# refcount bugs in for. also avoids problems with players
2344	# and maps saved/destroyed asynchronously.	3699	# and maps saved/destroyed asynchronously.
2345	warn "begin emergency player save\n";	3700	warn "emergency_perl_save: begin player save\n";
2346	for my $login (keys %cf::PLAYER) {	3701	for my $login (keys %cf::PLAYER) {
2347	my $pl = $cf::PLAYER{$login} or next;	3702	my $pl = $cf::PLAYER{$login} or next;
2348	$pl->valid or next;	3703	$pl->valid or next;
		3704	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2349	$pl->save;	3705	$pl->save;
2350	}	3706	}
2351	warn "end emergency player save\n";	3707	warn "emergency_perl_save: end player save\n";
2352		3708
2353	warn "begin emergency map save\n";	3709	warn "emergency_perl_save: begin map save\n";
2354	for my $path (keys %cf::MAP) {	3710	for my $path (keys %cf::MAP) {
2355	my $map = $cf::MAP{$path} or next;	3711	my $map = $cf::MAP{$path} or next;
2356	$map->valid or next;	3712	$map->valid or next;
2357	$map->save;	3713	$map->save;
2358	}	3714	}
2359	warn "end emergency map save\n";	3715	warn "emergency_perl_save: end map save\n";
2360		3716
2361	warn "begin emergency database checkpoint\n";	3717	warn "emergency_perl_save: begin database checkpoint\n";
2362	BDB::db_env_txn_checkpoint $DB_ENV;	3718	BDB::db_env_txn_checkpoint $DB_ENV;
2363	warn "end emergency database checkpoint\n";	3719	warn "emergency_perl_save: end database checkpoint\n";
		3720
		3721	warn "emergency_perl_save: begin write uuid\n";
		3722	write_uuid_sync 1;
		3723	warn "emergency_perl_save: end write uuid\n";
2364	};	3724	};
2365		3725
		3726	warn "emergency_perl_save: starting sync()\n";
		3727	IO::AIO::aio_sync sub {
		3728	warn "emergency_perl_save: finished sync()\n";
		3729	};
		3730
2366	warn "leave emergency perl save\n";	3731	warn "emergency_perl_save: leave\n";
2367	}	3732	}
2368		3733
2369	sub post_cleanup {	3734	sub post_cleanup {
2370	my ($make_core) = @_;	3735	my ($make_core) = @_;
2371		3736
2372	warn Carp::longmess "post_cleanup backtrace"	3737	warn Carp::longmess "post_cleanup backtrace"
2373	if $make_core;	3738	if $make_core;
2374	}
2375		3739
		3740	my $fh = pidfile;
		3741	unlink $PIDFILE if <$fh> == $$;
		3742	}
		3743
		3744	# a safer delete_package, copied from Symbol
		3745	sub clear_package($) {
		3746	my $pkg = shift;
		3747
		3748	# expand to full symbol table name if needed
		3749	unless ($pkg =~ /^main::.*::$/) {
		3750	$pkg = "main$pkg" if $pkg =~ /^::/;
		3751	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3752	$pkg .= '::' unless $pkg =~ /::$/;
		3753	}
		3754
		3755	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3756	my $stem_symtab = *{$stem}{HASH};
		3757
		3758	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3759	or return;
		3760
		3761	# clear all symbols
		3762	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3763	for my $name (keys %$leaf_symtab) {
		3764	_gv_clear *{"$pkg$name"};
		3765	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3766	}
		3767	warn "cleared package $pkg\n";#d#
		3768	}
		3769
2376	sub reload() {	3770	sub do_reload_perl() {
2377	# can/must only be called in main	3771	# can/must only be called in main
2378	if ($Coro::current != $Coro::main) {	3772	if ($Coro::current != $Coro::main) {
2379	warn "can only reload from main coroutine";	3773	warn "can only reload from main coroutine";
2380	return;	3774	return;
2381	}	3775	}
2382		3776
		3777	return if $RELOAD++;
		3778
		3779	my $t1 = AE::time;
		3780
		3781	while ($RELOAD) {
2383	warn "reloading...";	3782	warn "reloading...";
2384		3783
2385	warn "entering sync_job";	3784	warn "entering sync_job";
2386		3785
2387	cf::sync_job {	3786	cf::sync_job {
2388	cf::write_runtime; # external watchdog should not bark	3787	cf::write_runtime_sync; # external watchdog should not bark
2389	cf::emergency_save;	3788	cf::emergency_save;
2390	cf::write_runtime; # external watchdog should not bark	3789	cf::write_runtime_sync; # external watchdog should not bark
2391		3790
2392	warn "syncing database to disk";	3791	warn "syncing database to disk";
2393	BDB::db_env_txn_checkpoint $DB_ENV;	3792	BDB::db_env_txn_checkpoint $DB_ENV;
2394		3793
2395	# if anything goes wrong in here, we should simply crash as we already saved	3794	# if anything goes wrong in here, we should simply crash as we already saved
2396		3795
2397	warn "cancelling all WF_AUTOCANCEL watchers";
2398	for (Event::all_watchers) {
2399	$_->cancel if $_->data & WF_AUTOCANCEL;
2400	}
2401
2402	warn "flushing outstanding aio requests";	3796	warn "flushing outstanding aio requests";
2403	for (;;) {
2404	BDB::flush;
2405	IO::AIO::flush;
2406	Coro::cede;
2407	last unless IO::AIO::nreqs || BDB::nreqs;	3797	while (IO::AIO::nreqs || BDB::nreqs) {
2408	warn "iterate...";	3798	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2409	}
2410
2411	warn "cancelling all extension coros";
2412	$_->cancel for values %EXT_CORO;
2413	%EXT_CORO = ();
2414
2415	warn "removing commands";
2416	%COMMAND = ();
2417
2418	warn "removing ext commands";
2419	%EXTCMD = ();
2420
2421	warn "unloading/nuking all extensions";
2422	for my $pkg (@EXTS) {
2423	warn "... unloading $pkg";
2424
2425	if (my $cb = $pkg->can ("unload")) {
2426	eval {
2427	$cb->($pkg);
2428	1
2429	} or warn "$pkg unloaded, but with errors: $@";
2430	}	3799	}
2431		3800
2432	warn "... nuking $pkg";	3801	warn "cancelling all extension coros";
2433	Symbol::delete_package $pkg;	3802	$_->cancel for values %EXT_CORO;
2434	}	3803	%EXT_CORO = ();
2435		3804
2436	warn "unloading all perl modules loaded from $LIBDIR";	3805	warn "removing commands";
2437	while (my ($k, $v) = each %INC) {	3806	%COMMAND = ();
2438	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2439		3807
		3808	warn "removing ext/exti commands";
		3809	%EXTCMD = ();
		3810	%EXTICMD = ();
		3811
		3812	warn "unloading/nuking all extensions";
		3813	for my $pkg (@EXTS) {
2440	warn "... unloading $k";	3814	warn "... unloading $pkg";
2441	delete $INC{$k};
2442		3815
2443	$k =~ s/\.pm$//;
2444	$k =~ s/\//::/g;
2445
2446	if (my $cb = $k->can ("unload_module")) {	3816	if (my $cb = $pkg->can ("unload")) {
		3817	eval {
2447	$cb->();	3818	$cb->($pkg);
		3819	1
		3820	} or warn "$pkg unloaded, but with errors: $@";
		3821	}
		3822
		3823	warn "... clearing $pkg";
		3824	clear_package $pkg;
2448	}	3825	}
2449		3826
2450	Symbol::delete_package $k;	3827	warn "unloading all perl modules loaded from $LIBDIR";
		3828	while (my ($k, $v) = each %INC) {
		3829	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3830
		3831	warn "... unloading $k";
		3832	delete $INC{$k};
		3833
		3834	$k =~ s/\.pm$//;
		3835	$k =~ s/\//::/g;
		3836
		3837	if (my $cb = $k->can ("unload_module")) {
		3838	$cb->();
		3839	}
		3840
		3841	clear_package $k;
2451	}	3842	}
2452		3843
2453	warn "getting rid of safe::, as good as possible";	3844	warn "getting rid of safe::, as good as possible";
2454	Symbol::delete_package "safe::$_"	3845	clear_package "safe::$_"
2455	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3846	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2456		3847
2457	warn "unloading cf.pm \"a bit\"";	3848	warn "unloading cf.pm \"a bit\"";
2458	delete $INC{"cf.pm"};	3849	delete $INC{"cf.pm"};
		3850	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2459		3851
2460	# don't, removes xs symbols, too,	3852	# don't, removes xs symbols, too,
2461	# and global variables created in xs	3853	# and global variables created in xs
2462	#Symbol::delete_package __PACKAGE__;	3854	#clear_package __PACKAGE__;
2463		3855
2464	warn "unload completed, starting to reload now";	3856	warn "unload completed, starting to reload now";
2465		3857
2466	warn "reloading cf.pm";	3858	warn "reloading cf.pm";
2467	require cf;	3859	require cf;
2468	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3860	cf::_connect_to_perl_1;
2469		3861
2470	warn "loading config and database again";	3862	warn "loading config and database again";
2471	cf::cfg_load;	3863	cf::reload_config;
2472		3864
2473	warn "loading extensions";	3865	warn "loading extensions";
2474	cf::load_extensions;	3866	cf::load_extensions;
2475		3867
		3868	if ($REATTACH_ON_RELOAD) {
2476	warn "reattaching attachments to objects/players";	3869	warn "reattaching attachments to objects/players";
2477	_global_reattach; # objects, sockets	3870	_global_reattach; # objects, sockets
2478	warn "reattaching attachments to maps";	3871	warn "reattaching attachments to maps";
2479	reattach $_ for values %MAP;	3872	reattach $_ for values %MAP;
2480	warn "reattaching attachments to players";	3873	warn "reattaching attachments to players";
2481	reattach $_ for values %PLAYER;	3874	reattach $_ for values %PLAYER;
		3875	}
2482		3876
2483	warn "loading reloadable resources";	3877	warn "running post_init jobs";
2484	init_resources;	3878	(pop @POST_INIT)->(1) while @POST_INIT;
2485		3879
2486	warn "leaving sync_job";	3880	warn "leaving sync_job";
2487		3881
2488	1	3882	1
2489	} or do {	3883	} or do {
2490	warn $@;	3884	warn $@;
2491	warn "error while reloading, exiting.";	3885	cf::cleanup "error while reloading, exiting.";
2492	exit 1;	3886	};
		3887
		3888	warn "reloaded";
		3889	--$RELOAD;
		3890	}
		3891
		3892	$t1 = AE::time - $t1;
		3893	warn "reload completed in ${t1}s\n";
		3894	};
		3895
		3896	our $RELOAD_WATCHER; # used only during reload
		3897
		3898	sub reload_perl() {
		3899	# doing reload synchronously and two reloads happen back-to-back,
		3900	# coro crashes during coro_state_free->destroy here.
		3901
		3902	$RELOAD_WATCHER ||= cf::async {
		3903	Coro::AIO::aio_wait cache_extensions;
		3904
		3905	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3906	do_reload_perl;
		3907	undef $RELOAD_WATCHER;
		3908	};
2493	};	3909	};
2494		3910	}
2495	warn "reloaded";
2496	};
2497
2498	our $RELOAD_WATCHER; # used only during reload
2499		3911
2500	register_command "reload" => sub {	3912	register_command "reload" => sub {
2501	my ($who, $arg) = @_;	3913	my ($who, $arg) = @_;
2502		3914
2503	if ($who->flag (FLAG_WIZ)) {	3915	if ($who->flag (FLAG_WIZ)) {
2504	$who->message ("reloading server.");	3916	$who->message ("reloading server.");
2505		3917	async {
2506	# doing reload synchronously and two reloads happen back-to-back,	3918	$Coro::current->{desc} = "perl_reload";
2507	# coro crashes during coro_state_free->destroy here.
2508
2509	$RELOAD_WATCHER ||= Event->timer (
2510	reentrant => 0,
2511	after => 0,
2512	data => WF_AUTOCANCEL,
2513	cb => sub {
2514	reload;	3919	reload_perl;
2515	undef $RELOAD_WATCHER;
2516	},
2517	);	3920	};
2518	}	3921	}
2519	};	3922	};
2520		3923
2521	unshift @INC, $LIBDIR;	3924	unshift @INC, $LIBDIR;
2522		3925
2523	my $bug_warning = 0;	3926	my $bug_warning = 0;
2524		3927
2525	$TICK_WATCHER = Event->timer (	3928	our @WAIT_FOR_TICK;
2526	reentrant => 0,	3929	our @WAIT_FOR_TICK_BEGIN;
2527	parked => 1,	3930
2528	prio => 0,	3931	sub wait_for_tick {
2529	at => $NEXT_TICK || $TICK,	3932	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2530	data => WF_AUTOCANCEL,	3933
2531	cb => sub {	3934	my $signal = new Coro::Signal;
		3935	push @WAIT_FOR_TICK, $signal;
		3936	$signal->wait;
		3937	}
		3938
		3939	sub wait_for_tick_begin {
		3940	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3941
		3942	my $signal = new Coro::Signal;
		3943	push @WAIT_FOR_TICK_BEGIN, $signal;
		3944	$signal->wait;
		3945	}
		3946
		3947	sub tick {
2532	if ($Coro::current != $Coro::main) {	3948	if ($Coro::current != $Coro::main) {
2533	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3949	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2534	unless ++$bug_warning > 10;	3950	unless ++$bug_warning > 10;
2535	return;	3951	return;
2536	}	3952	}
2537		3953
2538	$NOW = Event::time;
2539
2540	cf::server_tick; # one server iteration	3954	cf::server_tick; # one server iteration
2541	$RUNTIME += $TICK;
2542	$NEXT_TICK += $TICK;
2543		3955
		3956	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		3957
2544	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2545	$NEXT_RUNTIME_WRITE = $NOW + 10;	3959	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2546	Coro::async_pool {	3960	Coro::async_pool {
		3961	$Coro::current->{desc} = "runtime saver";
2547	write_runtime	3962	write_runtime_sync
2548	or warn "ERROR: unable to write runtime file: $!";	3963	or warn "ERROR: unable to write runtime file: $!";
2549	};
2550	}	3964	};
2551
2552	$WAIT_FOR_TICK->broadcast;
2553	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2554
2555	# my $AFTER = Event::time;
2556	# warn $AFTER - $NOW;#d#
2557
2558	# if we are delayed by four ticks or more, skip them all
2559	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2560
2561	$TICK_WATCHER->at ($NEXT_TICK);
2562	$TICK_WATCHER->start;
2563	},	3965	}
2564	);	3966
		3967	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3968	$sig->send;
		3969	}
		3970	while (my $sig = shift @WAIT_FOR_TICK) {
		3971	$sig->send;
		3972	}
		3973
		3974	$LOAD = ($NOW - $TICK_START) / $TICK;
		3975	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3976
		3977	if (0) {
		3978	if ($NEXT_TICK) {
		3979	my $jitter = $TICK_START - $NEXT_TICK;
		3980	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3981	warn "jitter $JITTER\n";#d#
		3982	}
		3983	}
		3984	}
2565		3985
2566	{	3986	{
2567	BDB::max_poll_time $TICK * 0.1;	3987	# configure BDB
2568	$BDB_POLL_WATCHER = Event->io (	3988
2569	reentrant => 0,
2570	fd => BDB::poll_fileno,
2571	poll => 'r',
2572	prio => 0,
2573	data => WF_AUTOCANCEL,
2574	cb => \&BDB::poll_cb,
2575	);
2576	BDB::min_parallel 8;	3989	BDB::min_parallel 16;
2577		3990	BDB::max_poll_reqs $TICK * 0.1;
2578	BDB::set_sync_prepare {	3991	$AnyEvent::BDB::WATCHER->priority (1);
2579	my $status;
2580	my $current = $Coro::current;
2581	(
2582	sub {
2583	$status = $!;
2584	$current->ready; undef $current;
2585	},
2586	sub {
2587	Coro::schedule while defined $current;
2588	$! = $status;
2589	},
2590	)
2591	};
2592		3992
2593	unless ($DB_ENV) {	3993	unless ($DB_ENV) {
2594	$DB_ENV = BDB::db_env_create;	3994	$DB_ENV = BDB::db_env_create;
		3995	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3996	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3997	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3998	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3999	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2595		4000
2596	cf::sync_job {	4001	cf::sync_job {
2597	eval {	4002	eval {
2598	BDB::db_env_open	4003	BDB::db_env_open
2599	$DB_ENV,	4004	$DB_ENV,
2600	$BDB_ENV_DIR,	4005	$BDBDIR,
2601	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4006	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2602	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4007	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2603	0666;	4008	0666;
2604		4009
2605	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4010	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2606
2607	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2608	$DB_ENV->set_lk_detect;
2609	};	4011	};
2610		4012
2611	cf::cleanup "db_env_open(db): $@" if $@;	4013	cf::cleanup "db_env_open(db): $@" if $@;
2612	};	4014	};
2613	}	4015	}
		4016
		4017	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4018	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4019	};
		4020	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4021	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4022	};
		4023	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4024	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4025	};
2614	}	4026	}
2615		4027
2616	{	4028	{
		4029	# configure IO::AIO
		4030
2617	IO::AIO::min_parallel 8;	4031	IO::AIO::min_parallel 8;
2618
2619	undef $Coro::AIO::WATCHER;
2620	IO::AIO::max_poll_time $TICK * 0.1;	4032	IO::AIO::max_poll_time $TICK * 0.1;
2621	$AIO_POLL_WATCHER = Event->io (	4033	undef $AnyEvent::AIO::WATCHER;
2622	reentrant => 0,
2623	data => WF_AUTOCANCEL,
2624	fd => IO::AIO::poll_fileno,
2625	poll => 'r',
2626	prio => 6,
2627	cb => \&IO::AIO::poll_cb,
2628	);
2629	}	4034	}
		4035
		4036	my $_log_backtrace;
		4037
		4038	sub _log_backtrace {
		4039	my ($msg, @addr) = @_;
		4040
		4041	$msg =~ s/\n//;
		4042
		4043	# limit the # of concurrent backtraces
		4044	if ($_log_backtrace < 2) {
		4045	++$_log_backtrace;
		4046	my $perl_bt = Carp::longmess $msg;
		4047	async {
		4048	$Coro::current->{desc} = "abt $msg";
		4049
		4050	my @bt = fork_call {
		4051	@addr = map { sprintf "%x", $_ } @addr;
		4052	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4053	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4054	or die "addr2line: $!";
		4055
		4056	my @funcs;
		4057	my @res = <$fh>;
		4058	chomp for @res;
		4059	while (@res) {
		4060	my ($func, $line) = splice @res, 0, 2, ();
		4061	push @funcs, "[$func] $line";
		4062	}
		4063
		4064	@funcs
		4065	};
		4066
		4067	LOG llevInfo, "[ABT] $perl_bt\n";
		4068	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4069	LOG llevInfo, "[ABT] $_\n" for @bt;
		4070	--$_log_backtrace;
		4071	};
		4072	} else {
		4073	LOG llevInfo, "[ABT] $msg\n";
		4074	LOG llevInfo, "[ABT] [suppressed]\n";
		4075	}
		4076	}
		4077
		4078	# load additional modules
		4079	require "cf/$_.pm" for @EXTRA_MODULES;
		4080	cf::_connect_to_perl_2;
2630		4081
2631	END { cf::emergency_save }	4082	END { cf::emergency_save }
2632		4083
2633	1	4084	1
2634		4085

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