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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.231 by root, Wed Apr 4 00:02:06 2007 UTC vs.
Revision 1.516 by root, Thu Apr 15 06:05:52 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;
9	use Event;	32	use EV;
10	use Opcode;	33	use Opcode;
11	use Safe;	34	use Safe;
12	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
13		38
		39	use Guard ();
14	use Coro 3.52 ();	40	use Coro ();
15	use Coro::State;	41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
16	use Coro::Event;	44	use Coro::AnyEvent;
17	use Coro::Timer;	45	use Coro::Timer;
18	use Coro::Signal;	46	use Coro::Signal;
19	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
20	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
21		54
		55	use JSON::XS 2.01 ();
22	use BDB ();	56	use BDB ();
23	use Data::Dumper;	57	use Data::Dumper;
24	use Digest::MD5;
25	use Fcntl;	58	use Fcntl;
26	use YAML::Syck ();	59	use YAML::XS ();
27	use IO::AIO 2.32 ();	60	use IO::AIO ();
28	use Time::HiRes;	61	use Time::HiRes;
29	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
30		66
31	# configure various modules to our taste	67	# configure various modules to our taste
32	#	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	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";
34	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
35		77
36	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
37		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
38	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
39	$YAML::Syck::ImplicitUnicode = 1;
40
41	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
42		80
43	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
44		82
45	our %COMMAND = ();	83	our %COMMAND = ();
46	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
47		85
48	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
49	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
50	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
51	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
52		91
53	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
54	our @EVENT;	93	our @EVENT;
55	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
56		96
57	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
58	our $TICK_WATCHER;	98	our $DATADIR = datadir;
59	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(!)
60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
61	our $NEXT_TICK;	118	our $NEXT_TICK;
62	our $NOW;
63	our $USE_FSYNC = 1; # use fsync to write maps - default off	119	our $USE_FSYNC = 1; # use fsync to write maps - default on
64		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
65	our $BDB_POLL_WATCHER;	123	our $BDB_TRICKLE_WATCHER;
66	our $DB_ENV;	124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
67		127
68	our %CFG;	128	our %CFG;
69		129
70	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
71	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
72		133
73	our %PLAYER; # all users	134	our (%PLAYER, %PLAYER_LOADING); # all users
74	our %MAP; # all maps	135	our (%MAP, %MAP_LOADING ); # all maps
75	our $LINK_MAP; # the special {link} map, which is always available	136	our $LINK_MAP; # the special {link} map, which is always available
76	our $RANDOM_MAPS = cf::localdir . "/random";
77	our $BDB_ENV_DIR = cf::localdir . "/db";
78
79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
81		137
82	# 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 ∕
83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
84		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 $REALLY_UNLOOP; # never set to true, please :)
		150
85	binmode STDOUT;	151	binmode STDOUT;
86	binmode STDERR;	152	binmode STDERR;
87		153
88	# read virtual server time, if available	154	# read virtual server time, if available
89	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
90	open my $fh, "<", cf::localdir . "/runtime"	156	open my $fh, "<", $RUNTIMEFILE
91	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
92	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
93	}	159	}
94		160
95	mkdir cf::localdir;	161	eval "sub TICK() { $TICK } 1" or die;
96	mkdir cf::localdir . "/" . cf::playerdir;	162
97	mkdir cf::localdir . "/" . cf::tmpdir;	163	mkdir $_
98	mkdir cf::localdir . "/" . cf::uniquedir;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
99	mkdir $RANDOM_MAPS;
100	mkdir $BDB_ENV_DIR;
101		165
102	our $EMERGENCY_POSITION;	166	our $EMERGENCY_POSITION;
103		167
104	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::"} };
105		180
106	#############################################################################	181	#############################################################################
107		182
108	=head2 GLOBAL VARIABLES	183	=head2 GLOBAL VARIABLES
109		184
…		…
116	=item $cf::RUNTIME	191	=item $cf::RUNTIME
117		192
118	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
119	every server tick.	194	every server tick.
120		195
121	=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
122		199
123	The perl library directory, where extensions and cf-specific modules can	200	Various directories - "/etc", read-only install directory, perl-library
124	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.
125		204
126	=item $cf::NOW	205	=item $cf::NOW
127		206
128	The time of the last (current) server tick.	207	The time of the last (current) server tick.
129		208
130	=item $cf::TICK	209	=item $cf::TICK
131		210
132	The interval between server ticks, in seconds.	211	The interval between server ticks, in seconds.
133		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
134	=item %cf::CFG	223	=item %cf::CFG
135		224
136	Configuration for the server, loaded from C</etc/crossfire/config>, or	225	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
137	from wherever your confdir points to.	226	from wherever your confdir points to.
138		227
139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	228	=item cf::wait_for_tick, cf::wait_for_tick_begin
140		229
141	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
142	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
143	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.
144	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.
145		245
146	=back	246	=back
147		247
148	=cut	248	=cut
149		249
150	BEGIN {	250	$Coro::State::WARNHOOK = sub {
151	*CORE::GLOBAL::warn = sub {
152	my $msg = join "", @_;	251	my $msg = join "", @_;
153	utf8::encode $msg;
154		252
155	$msg .= "\n"	253	$msg .= "\n"
156	unless $msg =~ /\n$/;	254	unless $msg =~ /\n$/;
157		255
		256	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		257
158	LOG llevError, $msg;	258	LOG llevError, $msg;
159	};	259	};
160	}	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	};
161		274
162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	275	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	276	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
164	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	277	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
165	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	278	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
166	@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';
167	@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)
168		282
169	# 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
170	# within the Safe compartment.	284	# within the Safe compartment.
171	for my $pkg (qw(	285	for my $pkg (qw(
172	cf::global cf::attachable	286	cf::global cf::attachable
173	cf::object cf::object::player	287	cf::object cf::object::player
174	cf::client cf::player	288	cf::client cf::player
175	cf::arch cf::living	289	cf::arch cf::living
		290	cf::map cf::mapspace
176	cf::map cf::party cf::region	291	cf::party cf::region
177	)) {	292	)) {
178	no strict 'refs';
179	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	293	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
180	}	294	}
181		295
182	$Event::DIED = sub {	296	$EV::DIED = sub {
183	warn "error in event callback: @_";	297	Carp::cluck "error in event callback: @_";
184	};	298	};
		299
		300	#############################################################################
185		301
186	=head2 UTILITY FUNCTIONS	302	=head2 UTILITY FUNCTIONS
187		303
188	=over 4	304	=over 4
189		305
…		…
208	$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;
209	$d	325	$d
210	} || "[unable to dump $_[0]: '$@']";	326	} || "[unable to dump $_[0]: '$@']";
211	}	327	}
212		328
213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
214
215	=item $ref = cf::from_json $json	329	=item $ref = cf::decode_json $json
216		330
217	Converts a JSON string into the corresponding perl data structure.	331	Converts a JSON string into the corresponding perl data structure.
218		332
219	=item $json = cf::to_json $ref	333	=item $json = cf::encode_json $ref
220		334
221	Converts a perl data structure into its JSON representation.	335	Converts a perl data structure into its JSON representation.
222		336
		337	=cut
		338
		339	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		340
		341	sub encode_json($) { $json_coder->encode ($_[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;
		356	}
		357
223	=item cf::lock_wait $string	358	=item cf::lock_wait $string
224		359
225	Wait until the given lock is available. See cf::lock_acquire.	360	Wait until the given lock is available. See cf::lock_acquire.
226		361
227	=item my $lock = cf::lock_acquire $string	362	=item my $lock = cf::lock_acquire $string
228		363
229	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
230	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,
231	for example when the coroutine gets canceled), the lock is automatically	366	for example when the coroutine gets canceled), the lock is automatically
232	returned.	367	returned.
233		368
		369	Locks are *not* recursive, locking from the same coro twice results in a
		370	deadlocked coro.
		371
234	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
235	uses map_find and cf::map::load uses map_load).	373	uses map_find and cf::map::load uses map_load).
236		374
237	=cut	375	=item $locked = cf::lock_active $string
238		376
239	our %LOCK;	377	Return true if the lock is currently active, i.e. somebody has locked it.
		378
		379	=cut
		380
		381	our $LOCKS = new Coro::SemaphoreSet;
240		382
241	sub lock_wait($) {	383	sub lock_wait($) {
242	my ($key) = @_;	384	$LOCKS->wait ($_[0]);
243
244	# wait for lock, if any
245	while ($LOCK{$key}) {
246	push @{ $LOCK{$key} }, $Coro::current;
247	Coro::schedule;
248	}
249	}	385	}
250		386
251	sub lock_acquire($) {	387	sub lock_acquire($) {
252	my ($key) = @_;	388	$LOCKS->guard ($_[0])
		389	}
253		390
254	# wait, to be sure we are not locked	391	sub lock_active($) {
255	lock_wait $key;	392	$LOCKS->count ($_[0]) < 1
256
257	$LOCK{$key} = [];
258
259	Coro::guard {
260	# wake up all waiters, to be on the safe side
261	$_->ready for @{ delete $LOCK{$key} };
262	}
263	}	393	}
264		394
265	sub freeze_mainloop {	395	sub freeze_mainloop {
266	return unless $TICK_WATCHER->is_active;	396	tick_inhibit_inc;
267		397
268	my $guard = Coro::guard {	398	&Guard::guard (\&tick_inhibit_dec);
269	$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 time.
		405
		406	=cut
		407
		408	sub periodic($$) {
		409	my ($interval, $cb) = @_;
		410
		411	my $start = rand List::Util::min 180, $interval;
		412
		413	EV::periodic $start, $interval, 0, $cb
		414	}
		415
		416	=item cf::get_slot $time[, $priority[, $name]]
		417
		418	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		419	This call blocks and returns only when you have at least C<$time> seconds
		420	of cpu time till the next tick. The slot is only valid till the next cede.
		421
		422	The optional C<$name> can be used to identify the job to run. It might be
		423	used for statistical purposes and should identify the same time-class.
		424
		425	Useful for short background jobs.
		426
		427	=cut
		428
		429	our @SLOT_QUEUE;
		430	our $SLOT_QUEUE;
		431	our $SLOT_DECAY = 0.9;
		432
		433	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		434	$SLOT_QUEUE = Coro::async {
		435	$Coro::current->desc ("timeslot manager");
		436
		437	my $signal = new Coro::Signal;
		438	my $busy;
		439
		440	while () {
		441	next_job:
		442
		443	my $avail = cf::till_tick;
		444
		445	for (0 .. $#SLOT_QUEUE) {
		446	if ($SLOT_QUEUE[$_][0] <= $avail) {
		447	$busy = 0;
		448	my $job = splice @SLOT_QUEUE, $_, 1, ();
		449	$job->[2]->send;
		450	Coro::cede;
		451	goto next_job;
		452	} else {
		453	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		454	}
		455	}
		456
		457	if (@SLOT_QUEUE) {
		458	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		459	push @cf::WAIT_FOR_TICK, $signal;
		460	$signal->wait;
		461	} else {
		462	$busy = 0;
		463	Coro::schedule;
		464	}
270	};	465	}
271	$TICK_WATCHER->stop;	466	};
272	$guard	467
		468	sub get_slot($;$$) {
		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	$sig->wait;
273	}	481	}
274		482
275	=item cf::async { BLOCK }	483	=item cf::async { BLOCK }
276		484
277	Currently the same as Coro::async_pool, meaning you cannot use	485	Currently the same as Coro::async_pool, meaning you cannot use
…		…
282		490
283	BEGIN { *async = \&Coro::async_pool }	491	BEGIN { *async = \&Coro::async_pool }
284		492
285	=item cf::sync_job { BLOCK }	493	=item cf::sync_job { BLOCK }
286		494
287	The design of crossfire+ requires that the main coro ($Coro::main) is	495	The design of Deliantra requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	496	is always able to handle events or runnable, as Deliantra is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	497	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		498	acceptable.
290		499
291	If it must be done, put the blocking parts into C<sync_job>. This will run	500	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	501	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	502	server will be frozen during this time, so the block should either finish
294	fast or be very important.	503	fast or be very important.
…		…
297		506
298	sub sync_job(&) {	507	sub sync_job(&) {
299	my ($job) = @_;	508	my ($job) = @_;
300		509
301	if ($Coro::current == $Coro::main) {	510	if ($Coro::current == $Coro::main) {
		511	my $time = AE::time;
		512
302	# this is the main coro, too bad, we have to block	513	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	514	# till the operation succeeds, freezing the server :/
304		515
305	# TODO: use suspend/resume instead	516	LOG llevError, Carp::longmess "sync job";#d#
306	# (but this is cancel-safe)	517
307	my $freeze_guard = freeze_mainloop;	518	my $freeze_guard = freeze_mainloop;
308		519
309	my $busy = 1;	520	my $busy = 1;
310	my @res;	521	my @res;
311		522
312	(async {	523	(async {
		524	$Coro::current->desc ("sync job coro");
313	@res = eval { $job->() };	525	@res = eval { $job->() };
314	warn $@ if $@;	526	warn $@ if $@;
315	undef $busy;	527	undef $busy;
316	})->prio (Coro::PRIO_MAX);	528	})->prio (Coro::PRIO_MAX);
317		529
318	while ($busy) {	530	while ($busy) {
319	Coro::cede or Event::one_event;	531	if (Coro::nready) {
		532	Coro::cede_notself;
		533	} else {
		534	EV::loop EV::LOOP_ONESHOT;
320	}	535	}
		536	}
		537
		538	my $time = AE::time - $time;
		539
		540	$TICK_START += $time; # do not account sync jobs to server load
321		541
322	wantarray ? @res : $res[0]	542	wantarray ? @res : $res[0]
323	} else {	543	} else {
324	# we are in another coroutine, how wonderful, everything just works	544	# we are in another coroutine, how wonderful, everything just works
325		545
…		…
345	$EXT_CORO{$coro+0} = $coro;	565	$EXT_CORO{$coro+0} = $coro;
346		566
347	$coro	567	$coro
348	}	568	}
349		569
350	sub write_runtime {	570	=item fork_call { }, $args
351	my $guard = cf::lock_acquire "write_runtime";
352		571
353	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.
354		576
355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	577	=cut
356	or return;
357		578
358	my $value = $cf::RUNTIME + 90 + 10;	579	sub fork_call(&@) {
359	# 10 is the runtime save interval, for a monotonic clock	580	my ($cb, @args) = @_;
360	# 60 allows for the watchdog to kill the server.
361		581
362	(aio_write $fh, 0, (length $value), $value, 0) <= 0	582	# we seemingly have to make a local copy of the whole thing,
363	and return;	583	# otherwise perl prematurely frees the stuff :/
		584	# TODO: investigate and fix (likely this will be rather laborious)
364		585
365	# always fsync - this file is important	586	my @res = Coro::Util::fork_eval {
366	aio_fsync $fh	587	reset_signals;
367	and return;	588	&$cb
		589	}, @args;
368		590
369	close $fh	591	wantarray ? @res : $res[-1]
370	or return;	592	}
371		593
372	aio_rename "$runtime~", $runtime	594	sub objinfo {
373	and return;
374
375	1	595	(
		596	"counter value" => cf::object::object_count,
		597	"objects created" => cf::object::create_count,
		598	"objects destroyed" => cf::object::destroy_count,
		599	"freelist size" => cf::object::free_count,
		600	"allocated objects" => cf::object::objects_size,
		601	"active objects" => cf::object::actives_size,
		602	)
		603	}
		604
		605	=item $coin = coin_from_name $name
		606
		607	=cut
		608
		609	our %coin_alias = (
		610	"silver" => "silvercoin",
		611	"silvercoin" => "silvercoin",
		612	"silvercoins" => "silvercoin",
		613	"gold" => "goldcoin",
		614	"goldcoin" => "goldcoin",
		615	"goldcoins" => "goldcoin",
		616	"platinum" => "platinacoin",
		617	"platinumcoin" => "platinacoin",
		618	"platinumcoins" => "platinacoin",
		619	"platina" => "platinacoin",
		620	"platinacoin" => "platinacoin",
		621	"platinacoins" => "platinacoin",
		622	"royalty" => "royalty",
		623	"royalties" => "royalty",
		624	);
		625
		626	sub coin_from_name($) {
		627	$coin_alias{$_[0]}
		628	? cf::arch::find $coin_alias{$_[0]}
		629	: undef
		630	}
		631
		632	=item $value = cf::db_get $family => $key
		633
		634	Returns a single value from the environment database.
		635
		636	=item cf::db_put $family => $key => $value
		637
		638	Stores the given C<$value> in the family. It can currently store binary
		639	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		640
		641	=item $db = cf::db_table "name"
		642
		643	Create and/or open a new database table. The string must not be "db" and must be unique
		644	within each server.
		645
		646	=cut
		647
		648	sub db_table($) {
		649	my ($name) = @_;
		650	my $db = BDB::db_create $DB_ENV;
		651
		652	eval {
		653	$db->set_flags (BDB::CHKSUM);
		654
		655	utf8::encode $name;
		656	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		657	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		658	cf::cleanup "db_open(db): $!" if $!;
		659	};
		660	cf::cleanup "db_open(db): $@" if $@;
		661
		662	$db
		663	}
		664
		665	our $DB;
		666
		667	sub db_init {
		668	cf::sync_job {
		669	$DB ||= db_table "db";
		670	};
		671	}
		672
		673	sub db_get($$) {
		674	my $key = "$_[0]/$_[1]";
		675
		676	cf::sync_job {
		677	BDB::db_get $DB, undef, $key, my $data;
		678
		679	$! ? ()
		680	: $data
		681	}
		682	}
		683
		684	sub db_put($$$) {
		685	BDB::dbreq_pri 4;
		686	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		687	}
		688
		689	=item cf::cache $id => [$paths...], $processversion => $process
		690
		691	Generic caching function that returns the value of the resource $id,
		692	caching and regenerating as required.
		693
		694	This function can block.
		695
		696	=cut
		697
		698	sub cache {
		699	my ($id, $src, $processversion, $process) = @_;
		700
		701	my $meta =
		702	join "\x00",
		703	$processversion,
		704	map {
		705	aio_stat $_
		706	and Carp::croak "$_: $!";
		707
		708	($_, (stat _)[7,9])
		709	} @$src;
		710
		711	my $dbmeta = db_get cache => "$id/meta";
		712	if ($dbmeta ne $meta) {
		713	# changed, we may need to process
		714
		715	my @data;
		716	my $md5;
		717
		718	for (0 .. $#$src) {
		719	0 <= aio_load $src->[$_], $data[$_]
		720	or Carp::croak "$src->[$_]: $!";
		721	}
		722
		723	# if processing is expensive, check
		724	# checksum first
		725	if (1) {
		726	$md5 =
		727	join "\x00",
		728	$processversion,
		729	map {
		730	cf::cede_to_tick;
		731	($src->[$_], Digest::MD5::md5_hex $data[$_])
		732	} 0.. $#$src;
		733
		734
		735	my $dbmd5 = db_get cache => "$id/md5";
		736	if ($dbmd5 eq $md5) {
		737	db_put cache => "$id/meta", $meta;
		738
		739	return db_get cache => "$id/data";
		740	}
		741	}
		742
		743	my $t1 = Time::HiRes::time;
		744	my $data = $process->(\@data);
		745	my $t2 = Time::HiRes::time;
		746
		747	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		748
		749	db_put cache => "$id/data", $data;
		750	db_put cache => "$id/md5" , $md5;
		751	db_put cache => "$id/meta", $meta;
		752
		753	return $data;
		754	}
		755
		756	db_get cache => "$id/data"
376	}	757	}
377		758
378	=item cf::datalog type => key => value, ...	759	=item cf::datalog type => key => value, ...
379		760
380	Log a datalog packet of the given type with the given key-value pairs.	761	Log a datalog packet of the given type with the given key-value pairs.
…		…
392		773
393	#############################################################################	774	#############################################################################
394		775
395	=head2 ATTACHABLE OBJECTS	776	=head2 ATTACHABLE OBJECTS
396		777
397	Many objects in crossfire are so-called attachable objects. That means you can	778	Many objects in deliantra are so-called attachable objects. That means you can
398	attach callbacks/event handlers (a collection of which is called an "attachment")	779	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	780	to it. All such attachable objects support the following methods.
400		781
401	In the following description, CLASS can be any of C<global>, C<object>	782	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	783	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	784	Deliantra).
404		785
405	=over 4	786	=over 4
406		787
407	=item $attachable->attach ($attachment, key => $value...)	788	=item $attachable->attach ($attachment, key => $value...)
408		789
…		…
452	=item cf::CLASS::attachment $name, ...	833	=item cf::CLASS::attachment $name, ...
453		834
454	Register an attachment by C<$name> through which attachable objects of the	835	Register an attachment by C<$name> through which attachable objects of the
455	given CLASS can refer to this attachment.	836	given CLASS can refer to this attachment.
456		837
457	Some classes such as crossfire maps and objects can specify attachments	838	Some classes such as deliantra maps and objects can specify attachments
458	that are attached at load/instantiate time, thus the need for a name.	839	that are attached at load/instantiate time, thus the need for a name.
459		840
460	These calls expect any number of the following handler/hook descriptions:	841	These calls expect any number of the following handler/hook descriptions:
461		842
462	=over 4	843	=over 4
…		…
571	$registry = $CB_TYPE[$object_type] ||= [];	952	$registry = $CB_TYPE[$object_type] ||= [];
572		953
573	} elsif ($type eq "subtype") {	954	} elsif ($type eq "subtype") {
574	defined $object_type or Carp::croak "subtype specified without type";	955	defined $object_type or Carp::croak "subtype specified without type";
575	my $object_subtype = shift @arg;	956	my $object_subtype = shift @arg;
576	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	957	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
577		958
578	} elsif ($type eq "package") {	959	} elsif ($type eq "package") {
579	my $pkg = shift @arg;	960	my $pkg = shift @arg;
580		961
581	while (my ($name, $id) = each %cb_id) {	962	while (my ($name, $id) = each %cb_id) {
…		…
610	_attach $registry, $klass, @attach;	991	_attach $registry, $klass, @attach;
611	}	992	}
612		993
613	$obj->{$name} = \%arg;	994	$obj->{$name} = \%arg;
614	} else {	995	} else {
615	warn "object uses attachment '$name' that is not available, postponing.\n";	996	warn "object uses attachment '$name' which is not available, postponing.\n";
616	}	997	}
617		998
618	$obj->{_attachment}{$name} = undef;	999	$obj->{_attachment}{$name} = undef;
619	}	1000	}
620		1001
…		…
622	if (ref $_[0]) {	1003	if (ref $_[0]) {
623	_object_attach @_;	1004	_object_attach @_;
624	} else {	1005	} else {
625	_attach shift->_attach_registry, @_;	1006	_attach shift->_attach_registry, @_;
626	}	1007	}
		1008	_recalc_want;
627	};	1009	};
628		1010
629	# all those should be optimised	1011	# all those should be optimised
630	sub cf::attachable::detach {	1012	sub cf::attachable::detach {
631	my ($obj, $name) = @_;	1013	my ($obj, $name) = @_;
…		…
634	delete $obj->{_attachment}{$name};	1016	delete $obj->{_attachment}{$name};
635	reattach ($obj);	1017	reattach ($obj);
636	} else {	1018	} else {
637	Carp::croak "cannot, currently, detach class attachments";	1019	Carp::croak "cannot, currently, detach class attachments";
638	}	1020	}
		1021	_recalc_want;
639	};	1022	};
640		1023
641	sub cf::attachable::attached {	1024	sub cf::attachable::attached {
642	my ($obj, $name) = @_;	1025	my ($obj, $name) = @_;
643		1026
…		…
658	";	1041	";
659	die if $@;	1042	die if $@;
660	}	1043	}
661		1044
662	our $override;	1045	our $override;
663	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1046	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
664		1047
665	sub override {	1048	sub override {
666	$override = 1;	1049	$override = 1;
667	@invoke_results = ();	1050	@INVOKE_RESULTS = (@_);
668	}	1051	}
669		1052
670	sub do_invoke {	1053	sub do_invoke {
671	my $event = shift;	1054	my $event = shift;
672	my $callbacks = shift;	1055	my $callbacks = shift;
673		1056
674	@invoke_results = ();	1057	@INVOKE_RESULTS = ();
675		1058
676	local $override;	1059	local $override;
677		1060
678	for (@$callbacks) {	1061	for (@$callbacks) {
679	eval { &{$_->[1]} };	1062	eval { &{$_->[1]} };
…		…
688	}	1071	}
689		1072
690	0	1073	0
691	}	1074	}
692		1075
693	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1076	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
694		1077
695	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1078	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
696		1079
697	Generate an object-specific event with the given arguments.	1080	Generate an object-specific event with the given arguments.
698		1081
699	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1082	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
700	removed in future versions), and there is no public API to access override	1083	removed in future versions), and there is no public API to access override
701	results (if you must, access C<@cf::invoke_results> directly).	1084	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
702		1085
703	=back	1086	=back
704		1087
705	=cut	1088	=cut
706		1089
707	#############################################################################	1090	#############################################################################
708	# object support	1091	# object support
		1092
		1093	sub _object_equal($$);
		1094	sub _object_equal($$) {
		1095	my ($a, $b) = @_;
		1096
		1097	return 0 unless (ref $a) eq (ref $b);
		1098
		1099	if ("HASH" eq ref $a) {
		1100	my @ka = keys %$a;
		1101	my @kb = keys %$b;
		1102
		1103	return 0 if @ka != @kb;
		1104
		1105	for (0 .. $#ka) {
		1106	return 0 unless $ka[$_] eq $kb[$_];
		1107	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1108	}
		1109
		1110	} elsif ("ARRAY" eq ref $a) {
		1111
		1112	return 0 if @$a != @$b;
		1113
		1114	for (0 .. $#$a) {
		1115	return 0 unless _object_equal $a->[$_], $b->[$_];
		1116	}
		1117
		1118	} elsif ($a ne $b) {
		1119	return 0;
		1120	}
		1121
		1122	1
		1123	}
		1124
		1125	our $SLOW_MERGES;#d#
		1126	sub _can_merge {
		1127	my ($ob1, $ob2) = @_;
		1128
		1129	++$SLOW_MERGES;#d#
		1130
		1131	# we do the slow way here
		1132	return _object_equal $ob1, $ob2
		1133	}
709		1134
710	sub reattach {	1135	sub reattach {
711	# basically do the same as instantiate, without calling instantiate	1136	# basically do the same as instantiate, without calling instantiate
712	my ($obj) = @_;	1137	my ($obj) = @_;
713		1138
		1139	# no longer needed after getting rid of delete_package?
714	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1140	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
715		1141
716	my $registry = $obj->registry;	1142	my $registry = $obj->registry;
717		1143
718	@$registry = ();	1144	@$registry = ();
719		1145
…		…
734	cf::attachable->attach (	1160	cf::attachable->attach (
735	prio => -1000000,	1161	prio => -1000000,
736	on_instantiate => sub {	1162	on_instantiate => sub {
737	my ($obj, $data) = @_;	1163	my ($obj, $data) = @_;
738		1164
739	$data = from_json $data;	1165	$data = decode_json $data;
740		1166
741	for (@$data) {	1167	for (@$data) {
742	my ($name, $args) = @$_;	1168	my ($name, $args) = @$_;
743		1169
744	$obj->attach ($name, %{$args || {} });	1170	$obj->attach ($name, %{$args || {} });
…		…
760	sub object_freezer_save {	1186	sub object_freezer_save {
761	my ($filename, $rdata, $objs) = @_;	1187	my ($filename, $rdata, $objs) = @_;
762		1188
763	sync_job {	1189	sync_job {
764	if (length $$rdata) {	1190	if (length $$rdata) {
		1191	utf8::decode (my $decname = $filename);
765	warn sprintf "saving %s (%d,%d)\n",	1192	warn sprintf "saving %s (%d,%d)\n",
766	$filename, length $$rdata, scalar @$objs;	1193	$decname, length $$rdata, scalar @$objs;
767		1194
768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1195	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
769	chmod SAVE_MODE, $fh;	1196	aio_chmod $fh, SAVE_MODE;
770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1197	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
771	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	}
772	close $fh;	1202	aio_close $fh;
773		1203
774	if (@$objs) {	1204	if (@$objs) {
775	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1205	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
776	chmod SAVE_MODE, $fh;	1206	aio_chmod $fh, SAVE_MODE;
777	my $data = Storable::nfreeze { version => 1, objs => $objs };	1207	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
778	aio_write $fh, 0, (length $data), $data, 0;	1208	aio_write $fh, 0, (length $data), $data, 0;
779	aio_fsync $fh if $cf::USE_FSYNC;	1209	if ($cf::USE_FSYNC) {
		1210	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;
		1211	aio_fsync $fh;
		1212	}
780	close $fh;	1213	aio_close $fh;
781	aio_rename "$filename.pst~", "$filename.pst";	1214	aio_rename "$filename.pst~", "$filename.pst";
782	}	1215	}
783	} else {	1216	} else {
784	aio_unlink "$filename.pst";	1217	aio_unlink "$filename.pst";
785	}	1218	}
786		1219
787	aio_rename "$filename~", $filename;	1220	aio_rename "$filename~", $filename;
		1221
		1222	$filename =~ s%/[^/]+$%%;
		1223	aio_pathsync $filename if $cf::USE_FSYNC;
788	} else {	1224	} else {
789	warn "FATAL: $filename~: $!\n";	1225	warn "unable to save objects: $filename~: $!\n";
790	}	1226	}
791	} else {	1227	} else {
792	aio_unlink $filename;	1228	aio_unlink $filename;
793	aio_unlink "$filename.pst";	1229	aio_unlink "$filename.pst";
794	}	1230	}
795	}	1231	};
796	}	1232	}
797		1233
798	sub object_freezer_as_string {	1234	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1235	my ($rdata, $objs) = @_;
800		1236
…		…
812	or return;	1248	or return;
813		1249
814	unless (aio_stat "$filename.pst") {	1250	unless (aio_stat "$filename.pst") {
815	(aio_load "$filename.pst", $av) >= 0	1251	(aio_load "$filename.pst", $av) >= 0
816	or return;	1252	or return;
		1253
817	$av = eval { (Storable::thaw $av)->{objs} };	1254	my $st = eval { Coro::Storable::thaw $av };
		1255	$av = $st->{objs};
818	}	1256	}
819		1257
		1258	utf8::decode (my $decname = $filename);
820	warn sprintf "loading %s (%d)\n",	1259	warn sprintf "loading %s (%d,%d)\n",
821	$filename, length $data, scalar @{$av || []};#d#	1260	$decname, length $data, scalar @{$av || []};
		1261
822	return ($data, $av);	1262	($data, $av)
823	}	1263	}
		1264
		1265	=head2 COMMAND CALLBACKS
		1266
		1267	=over 4
		1268
		1269	=cut
824		1270
825	#############################################################################	1271	#############################################################################
826	# command handling &c	1272	# command handling &c
827		1273
828	=item cf::register_command $name => \&callback($ob,$args);	1274	=item cf::register_command $name => \&callback($ob,$args);
…		…
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1287	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1288	}
843		1289
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1290	=item cf::register_extcmd $name => \&callback($pl,$packet);
845		1291
846	Register a callbackf ro execution when the client sends an extcmd packet.	1292	Register a callback for execution when the client sends an (synchronous)
		1293	extcmd packet. Ext commands will be processed in the order they are
		1294	received by the server, like other user commands. The first argument is
		1295	the logged-in player. Ext commands can only be processed after a player
		1296	has logged in successfully.
847		1297
848	If the callback returns something, it is sent back as if reply was being	1298	If the callback returns something, it is sent back as if reply was being
849	called.	1299	called.
850		1300
		1301	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1302
		1303	Register a callback for execution when the client sends an (asynchronous)
		1304	exticmd packet. Exti commands are processed by the server as soon as they
		1305	are received, i.e. out of order w.r.t. other commands. The first argument
		1306	is a client socket. Exti commands can be received anytime, even before
		1307	log-in.
		1308
		1309	If the callback returns something, it is sent back as if reply was being
		1310	called.
		1311
851	=cut	1312	=cut
852		1313
853	sub register_extcmd {	1314	sub register_extcmd {
854	my ($name, $cb) = @_;	1315	my ($name, $cb) = @_;
855		1316
856	$EXTCMD{$name} = $cb;	1317	$EXTCMD{$name} = $cb;
857	}	1318	}
858		1319
		1320	sub register_exticmd {
		1321	my ($name, $cb) = @_;
		1322
		1323	$EXTICMD{$name} = $cb;
		1324	}
		1325
		1326	use File::Glob ();
		1327
859	cf::player->attach (	1328	cf::player->attach (
860	on_command => sub {	1329	on_unknown_command => sub {
861	my ($pl, $name, $params) = @_;	1330	my ($pl, $name, $params) = @_;
862		1331
863	my $cb = $COMMAND{$name}	1332	my $cb = $COMMAND{$name}
864	or return;	1333	or return;
865		1334
…		…
870	cf::override;	1339	cf::override;
871	},	1340	},
872	on_extcmd => sub {	1341	on_extcmd => sub {
873	my ($pl, $buf) = @_;	1342	my ($pl, $buf) = @_;
874		1343
875	my $msg = eval { from_json $buf };	1344	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
876		1345
877	if (ref $msg) {	1346	if (ref $msg) {
		1347	my ($type, $reply, @payload) =
		1348	"ARRAY" eq ref $msg
		1349	? @$msg
		1350	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1351
		1352	my @reply;
		1353
878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1354	if (my $cb = $EXTCMD{$type}) {
879	if (my %reply = $cb->($pl, $msg)) {	1355	@reply = $cb->($pl, @payload);
880	$pl->ext_reply ($msg->{msgid}, %reply);
881	}
882	}	1356	}
		1357
		1358	$pl->ext_reply ($reply, @reply)
		1359	if $reply;
		1360
883	} else {	1361	} else {
884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1362	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
885	}	1363	}
886		1364
887	cf::override;	1365	cf::override;
888	},	1366	},
889	);	1367	);
890		1368
		1369	# "readahead" all extensions
891	sub load_extension {	1370	sub cache_extensions {
892	my ($path) = @_;	1371	my $grp = IO::AIO::aio_group;
893		1372
894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1373	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
895	my $base = $1;	1374	for (grep /\.ext$/, @{$_[0]}) {
896	my $pkg = $1;	1375	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
897	$pkg =~ s/[^[:word:]]/_/g;
898	$pkg = "ext::$pkg";
899
900	warn "... loading '$path' into '$pkg'\n";
901
902	open my $fh, "<:utf8", $path
903	or die "$path: $!";
904
905	my $source =
906	"package $pkg; use strict; use utf8;\n"
907	. "#line 1 \"$path\"\n{\n"
908	. (do { local $/; <$fh> })
909	. "\n};\n1";
910
911	unless (eval $source) {
912	my $msg = $@ ? "$path: $@\n"
913	: "extension disabled.\n";
914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
915	warn $@;
916	warn "mandatory extension failed to load, exiting.\n";
917	exit 1;
918	}	1376	}
919	die $@;
920	}	1377	};
921		1378
922	push @EXTS, $pkg;	1379	$grp
923	}	1380	}
924		1381
925	sub load_extensions {	1382	sub load_extensions {
		1383	cf::sync_job {
		1384	my %todo;
		1385
926	for my $ext (<$LIBDIR/*.ext>) {	1386	for my $path (<$LIBDIR/*.ext>) {
927	next unless -r $ext;	1387	next unless -r $path;
928	eval {	1388
929	load_extension $ext;	1389	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1390	my $base = $1;
		1391	my $pkg = $1;
		1392	$pkg =~ s/[^[:word:]]/_/g;
		1393	$pkg = "ext::$pkg";
		1394
		1395	open my $fh, "<:utf8", $path
		1396	or die "$path: $!";
		1397
		1398	my $source = do { local $/; <$fh> };
		1399
		1400	my %ext = (
		1401	path => $path,
		1402	base => $base,
		1403	pkg => $pkg,
		1404	);
		1405
		1406	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1407	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1408
		1409	$ext{source} =
		1410	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1411	. "#line 1 \"$path\"\n{\n"
		1412	. $source
		1413	. "\n};\n1";
		1414
		1415	$todo{$base} = \%ext;
		1416	}
		1417
		1418	my $pass = 0;
		1419	my %done;
		1420	while (%todo) {
		1421	my $progress;
		1422
		1423	++$pass;
		1424
		1425	ext:
		1426	while (my ($k, $v) = each %todo) {
		1427	for (split /,\s*/, $v->{meta}{depends}) {
		1428	next ext
		1429	unless exists $done{$_};
		1430	}
		1431
		1432	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1433
		1434	my $active = eval $v->{source};
		1435
		1436	if (length $@) {
		1437	warn "$v->{path}: $@\n";
		1438
		1439	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1440	if exists $v->{meta}{mandatory};
		1441	} else {
		1442	$done{$k} = delete $todo{$k};
		1443	push @EXTS, $v->{pkg};
		1444	$progress = 1;
		1445
		1446	warn "$v->{base}: extension inactive.\n"
		1447	unless $active;
		1448	}
930	1	1449	}
931	} or warn "$ext not loaded: $@";	1450
		1451	unless ($progress) {
		1452	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1453
		1454	while (my ($k, $v) = each %todo) {
		1455	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1456	if exists $v->{meta}{mandatory};
		1457	}
		1458	}
		1459	}
932	}	1460	};
933	}	1461	}
934		1462
935	#############################################################################	1463	#############################################################################
936		1464
		1465	=back
		1466
937	=head2 CORE EXTENSIONS	1467	=head2 CORE EXTENSIONS
938		1468
939	Functions and methods that extend core crossfire objects.	1469	Functions and methods that extend core deliantra objects.
940		1470
941	=cut	1471	=cut
942		1472
943	package cf::player;	1473	package cf::player;
944		1474
…		…
946		1476
947	=head3 cf::player	1477	=head3 cf::player
948		1478
949	=over 4	1479	=over 4
950		1480
		1481	=item cf::player::num_playing
		1482
		1483	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1484
		1485	=cut
		1486
		1487	sub num_playing {
		1488	scalar grep
		1489	$_->ob->map
		1490	&& !$_->hidden
		1491	&& !$_->ob->flag (cf::FLAG_WIZ),
		1492	cf::player::list
		1493	}
		1494
951	=item cf::player::find $login	1495	=item cf::player::find $login
952		1496
953	Returns the given player object, loading it if necessary (might block).	1497	Returns the given player object, loading it if necessary (might block).
954		1498
955	=cut	1499	=cut
956		1500
957	sub playerdir($) {	1501	sub playerdir($) {
958	cf::localdir	1502	"$PLAYERDIR/"
959	. "/"
960	. cf::playerdir
961	. "/"
962	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1503	. (ref $_[0] ? $_[0]->ob->name : $_[0])
963	}	1504	}
964		1505
965	sub path($) {	1506	sub path($) {
966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1507	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
967		1508
968	(playerdir $login) . "/$login.pl"	1509	(playerdir $login) . "/playerdata"
969	}	1510	}
970		1511
971	sub find_active($) {	1512	sub find_active($) {
972	$cf::PLAYER{$_[0]}	1513	$cf::PLAYER{$_[0]}
973	and $cf::PLAYER{$_[0]}->active	1514	and $cf::PLAYER{$_[0]}->active
…		…
976		1517
977	sub exists($) {	1518	sub exists($) {
978	my ($login) = @_;	1519	my ($login) = @_;
979		1520
980	$cf::PLAYER{$login}	1521	$cf::PLAYER{$login}
981	or cf::sync_job { !aio_stat path $login }	1522	or !aio_stat path $login
982	}	1523	}
983		1524
984	sub find($) {	1525	sub find($) {
985	return $cf::PLAYER{$_[0]} || do {	1526	return $cf::PLAYER{$_[0]} || do {
986	my $login = $_[0];	1527	my $login = $_[0];
987		1528
988	my $guard = cf::lock_acquire "user_find:$login";	1529	my $guard = cf::lock_acquire "user_find:$login";
989		1530
990	$cf::PLAYER{$_[0]} || do {	1531	$cf::PLAYER{$_[0]} || do {
991	my $pl = load_pl path $login	1532	# rename old playerfiles to new ones
		1533	#TODO: remove when no longer required
		1534	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1535	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1536	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1537	aio_unlink +(playerdir $login) . "/$login.pl";
		1538
		1539	my $f = new_from_file cf::object::thawer path $login
992	or return;	1540	or return;
		1541
		1542	my $pl = cf::player::load_pl $f
		1543	or return;
		1544
		1545	local $cf::PLAYER_LOADING{$login} = $pl;
		1546	$f->resolve_delayed_derefs;
993	$cf::PLAYER{$login} = $pl	1547	$cf::PLAYER{$login} = $pl
994	}	1548	}
995	}	1549	}
996	}	1550	}
		1551
		1552	cf::player->attach (
		1553	on_load => sub {
		1554	my ($pl, $path) = @_;
		1555
		1556	# restore slots saved in save, below
		1557	my $slots = delete $pl->{_slots};
		1558
		1559	$pl->ob->current_weapon ($slots->[0]);
		1560	$pl->combat_ob ($slots->[1]);
		1561	$pl->ranged_ob ($slots->[2]);
		1562	},
		1563	);
997		1564
998	sub save($) {	1565	sub save($) {
999	my ($pl) = @_;	1566	my ($pl) = @_;
1000		1567
1001	return if $pl->{deny_save};	1568	return if $pl->{deny_save};
…		…
1006	return if $pl->{deny_save};	1573	return if $pl->{deny_save};
1007		1574
1008	aio_mkdir playerdir $pl, 0770;	1575	aio_mkdir playerdir $pl, 0770;
1009	$pl->{last_save} = $cf::RUNTIME;	1576	$pl->{last_save} = $cf::RUNTIME;
1010		1577
		1578	cf::get_slot 0.01;
		1579
		1580	# save slots, to be restored later
		1581	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1582
1011	$pl->save_pl ($path);	1583	$pl->save_pl ($path);
1012	Coro::cede;	1584	cf::cede_to_tick;
1013	}	1585	}
1014		1586
1015	sub new($) {	1587	sub new($) {
1016	my ($login) = @_;	1588	my ($login) = @_;
1017		1589
…		…
1023	$cf::PLAYER{$login} = $self;	1595	$cf::PLAYER{$login} = $self;
1024		1596
1025	$self	1597	$self
1026	}	1598	}
1027		1599
		1600	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1601
		1602	=cut
		1603
		1604	sub send_msg {
		1605	my $ns = shift->ns
		1606	or return;
		1607	$ns->send_msg (@_);
		1608	}
		1609
1028	=item $pl->quit_character	1610	=item $pl->quit_character
1029		1611
1030	Nukes the player without looking back. If logged in, the connection will	1612	Nukes the player without looking back. If logged in, the connection will
1031	be destroyed. May block for a long time.	1613	be destroyed. May block for a long time.
1032		1614
…		…
1036	my ($pl) = @_;	1618	my ($pl) = @_;
1037		1619
1038	my $name = $pl->ob->name;	1620	my $name = $pl->ob->name;
1039		1621
1040	$pl->{deny_save} = 1;	1622	$pl->{deny_save} = 1;
1041	$pl->password ("*"); # this should lock out the player until we nuked the dir	1623	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1042		1624
1043	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1625	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1044	$pl->deactivate;	1626	$pl->deactivate;
		1627	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1628	$pl->ob->check_score;
1045	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1629	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1046	$pl->ns->destroy if $pl->ns;	1630	$pl->ns->destroy if $pl->ns;
1047		1631
1048	my $path = playerdir $pl;	1632	my $path = playerdir $pl;
1049	my $temp = "$path~$cf::RUNTIME~deleting~";	1633	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1079	while and may block, so not sync_job-capable, ever.	1663	while and may block, so not sync_job-capable, ever.
1080		1664
1081	=cut	1665	=cut
1082		1666
1083	sub list_logins {	1667	sub list_logins {
1084	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1668	my $dirs = aio_readdir $PLAYERDIR
1085	or return [];	1669	or return [];
1086		1670
1087	my @logins;	1671	my @logins;
1088		1672
1089	for my $login (@$dirs) {	1673	for my $login (@$dirs) {
		1674	my $path = path $login;
		1675
		1676	# a .pst is a dead give-away for a valid player
		1677	# if no pst file found, open and chekc for blocked users
		1678	if (aio_stat "$path.pst") {
1090	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1679	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1091	aio_read $fh, 0, 512, my $buf, 0 or next;	1680	aio_read $fh, 0, 512, my $buf, 0 or next;
1092	$buf !~ /^password -------------$/m or next; # official not-valid tag	1681	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1682	}
1093		1683
1094	utf8::decode $login;	1684	utf8::decode $login;
1095	push @logins, $login;	1685	push @logins, $login;
1096	}	1686	}
1097		1687
…		…
1124	}	1714	}
1125		1715
1126	\@paths	1716	\@paths
1127	}	1717	}
1128		1718
		1719	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1720
		1721	Expand deliantra pod fragments into protocol xml.
		1722
1129	=item $player->ext_reply ($msgid, %msg)	1723	=item $player->ext_reply ($msgid, @msg)
1130		1724
1131	Sends an ext reply to the player.	1725	Sends an ext reply to the player.
1132		1726
1133	=cut	1727	=cut
1134		1728
1135	sub ext_reply($$%) {	1729	sub ext_reply($$@) {
1136	my ($self, $id, %msg) = @_;	1730	my ($self, $id, @msg) = @_;
1137		1731
1138	$msg{msgid} = $id;	1732	$self->ns->ext_reply ($id, @msg)
1139
1140	$self->send ("ext " . cf::to_json \%msg);
1141	}	1733	}
1142		1734
1143	=item $player->ext_event ($type, %msg)	1735	=item $player->ext_msg ($type, @msg)
1144		1736
1145	Sends an ext event to the client.	1737	Sends an ext event to the client.
1146		1738
1147	=cut	1739	=cut
1148		1740
1149	sub ext_event($$%) {	1741	sub ext_msg($$@) {
1150	my ($self, $type, %msg) = @_;	1742	my ($self, $type, @msg) = @_;
1151		1743
1152	delete $msg{msgid};	1744	$self->ns->ext_msg ($type, @msg);
1153	$msg{msgtype} = "event";
1154	$msg{eventtype} = $type;
1155
1156	$self->send ("ext " . cf::to_json \%msg);
1157	}	1745	}
1158		1746
1159	package cf;	1747	=head3 cf::region
		1748
		1749	=over 4
		1750
		1751	=cut
		1752
		1753	package cf::region;
		1754
		1755	=item cf::region::find_by_path $path
		1756
		1757	Tries to decuce the likely region for a map knowing only its path.
		1758
		1759	=cut
		1760
		1761	sub find_by_path($) {
		1762	my ($path) = @_;
		1763
		1764	my ($match, $specificity);
		1765
		1766	for my $region (list) {
		1767	if ($region->{match} && $path =~ $region->{match}) {
		1768	($match, $specificity) = ($region, $region->specificity)
		1769	if $region->specificity > $specificity;
		1770	}
		1771	}
		1772
		1773	$match
		1774	}
1160		1775
1161	=back	1776	=back
1162
1163		1777
1164	=head3 cf::map	1778	=head3 cf::map
1165		1779
1166	=over 4	1780	=over 4
1167		1781
…		…
1179	our $MAX_RESET = 3600;	1793	our $MAX_RESET = 3600;
1180	our $DEFAULT_RESET = 3000;	1794	our $DEFAULT_RESET = 3000;
1181		1795
1182	sub generate_random_map {	1796	sub generate_random_map {
1183	my ($self, $rmp) = @_;	1797	my ($self, $rmp) = @_;
		1798
		1799	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1800
1184	# mit "rum" bekleckern, nicht	1801	# mit "rum" bekleckern, nicht
1185	$self->_create_random_map (	1802	$self->_create_random_map (
1186	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1803	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1187	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1804	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1188	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1805	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1189	$rmp->{exit_on_final_map},	1806	$rmp->{exit_on_final_map},
1190	$rmp->{xsize}, $rmp->{ysize},	1807	$rmp->{xsize}, $rmp->{ysize},
1191	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1808	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1192	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1809	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1222	my ($self, $merge) = @_;	1839	my ($self, $merge) = @_;
1223		1840
1224	# we have to keep some variables in memory intact	1841	# we have to keep some variables in memory intact
1225	local $self->{path};	1842	local $self->{path};
1226	local $self->{load_path};	1843	local $self->{load_path};
1227	local $self->{deny_save};
1228	local $self->{deny_reset};
1229		1844
1230	$self->SUPER::thawer_merge ($merge);	1845	$self->SUPER::thawer_merge ($merge);
1231	}	1846	}
1232		1847
1233	sub normalise {	1848	sub normalise {
…		…
1280	$self->init; # pass $1 etc.	1895	$self->init; # pass $1 etc.
1281	return $self;	1896	return $self;
1282	}	1897	}
1283	}	1898	}
1284		1899
1285	Carp::carp "unable to resolve path '$path' (base '$base').";	1900	Carp::cluck "unable to resolve path '$path' (base '$base').";
1286	()	1901	()
1287	}	1902	}
1288		1903
1289	sub init {	1904	sub init {
1290	my ($self) = @_;	1905	my ($self) = @_;
…		…
1305		1920
1306	# the original (read-only) location	1921	# the original (read-only) location
1307	sub load_path {	1922	sub load_path {
1308	my ($self) = @_;	1923	my ($self) = @_;
1309		1924
1310	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1925	"$MAPDIR/$self->{path}.map"
1311	}	1926	}
1312		1927
1313	# the temporary/swap location	1928	# the temporary/swap location
1314	sub save_path {	1929	sub save_path {
1315	my ($self) = @_;	1930	my ($self) = @_;
1316		1931
1317	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1932	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1318	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1933	"$TMPDIR/$path.map"
1319	}	1934	}
1320		1935
1321	# the unique path, undef == no special unique path	1936	# the unique path, undef == no special unique path
1322	sub uniq_path {	1937	sub uniq_path {
1323	my ($self) = @_;	1938	my ($self) = @_;
1324		1939
1325	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1940	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1326	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1941	"$UNIQUEDIR/$path"
1327	}	1942	}
1328		1943
1329	# and all this just because we cannot iterate over	1944	sub decay_objects {
1330	# all maps in C++...
1331	sub change_all_map_light {
1332	my ($change) = @_;	1945	my ($self) = @_;
1333		1946
1334	$_->change_map_light ($change)	1947	return if $self->{deny_reset};
1335	for grep $_->outdoor, values %cf::MAP;	1948
		1949	$self->do_decay_objects;
1336	}	1950	}
1337		1951
1338	sub unlink_save {	1952	sub unlink_save {
1339	my ($self) = @_;	1953	my ($self) = @_;
1340		1954
…		…
1345		1959
1346	sub load_header_from($) {	1960	sub load_header_from($) {
1347	my ($self, $path) = @_;	1961	my ($self, $path) = @_;
1348		1962
1349	utf8::encode $path;	1963	utf8::encode $path;
1350	#aio_open $path, O_RDONLY, 0	1964	my $f = new_from_file cf::object::thawer $path
1351	# or return;
1352
1353	$self->_load_header ($path)
1354	or return;	1965	or return;
		1966
		1967	$self->_load_header ($f)
		1968	or return;
		1969
		1970	local $MAP_LOADING{$self->{path}} = $self;
		1971	$f->resolve_delayed_derefs;
1355		1972
1356	$self->{load_path} = $path;	1973	$self->{load_path} = $path;
1357		1974
1358	1	1975	1
1359	}	1976	}
…		…
1398	$self->load_header_orig	2015	$self->load_header_orig
1399	or return;	2016	or return;
1400	$self->prepare_orig;	2017	$self->prepare_orig;
1401	}	2018	}
1402		2019
		2020	$self->{deny_reset} = 1
		2021	if $self->no_reset;
		2022
		2023	$self->default_region (cf::region::find_by_path $self->{path})
		2024	unless $self->default_region;
		2025
1403	1	2026	1
1404	}	2027	}
1405		2028
1406	sub find;	2029	sub find;
1407	sub find {	2030	sub find {
1408	my ($path, $origin) = @_;	2031	my ($path, $origin) = @_;
1409		2032
1410	$path = normalise $path, $origin && $origin->path;	2033	$path = normalise $path, $origin && $origin->path;
1411		2034
		2035	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1412	cf::lock_wait "map_find:$path";	2036	my $guard2 = cf::lock_acquire "map_find:$path";
1413		2037
1414	$cf::MAP{$path} || do {	2038	$cf::MAP{$path} || do {
1415	my $guard = cf::lock_acquire "map_find:$path";
1416	my $map = new_from_path cf::map $path	2039	my $map = new_from_path cf::map $path
1417	or return;	2040	or return;
1418		2041
1419	$map->{last_save} = $cf::RUNTIME;	2042	$map->{last_save} = $cf::RUNTIME;
1420		2043
1421	$map->load_header	2044	$map->load_header
1422	or return;	2045	or return;
1423		2046
1424	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2047	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1425	# doing this can freeze the server in a sync job, obviously	2048	# doing this can freeze the server in a sync job, obviously
1426	#$cf::WAIT_FOR_TICK->wait;	2049	#$cf::WAIT_FOR_TICK->wait;
		2050	undef $guard2;
		2051	undef $guard1;
1427	$map->reset;	2052	$map->reset;
1428	undef $guard;
1429	return find $path;	2053	return find $path;
1430	}	2054	}
1431		2055
1432	$cf::MAP{$path} = $map	2056	$cf::MAP{$path} = $map
1433	}	2057	}
1434	}	2058	}
1435		2059
1436	sub pre_load { }	2060	sub pre_load { }
1437	sub post_load { }	2061	#sub post_load { } # XS
1438		2062
1439	sub load {	2063	sub load {
1440	my ($self) = @_;	2064	my ($self) = @_;
1441		2065
1442	local $self->{deny_reset} = 1; # loading can take a long time	2066	local $self->{deny_reset} = 1; # loading can take a long time
1443		2067
1444	my $path = $self->{path};	2068	my $path = $self->{path};
		2069
		2070	{
1445	my $guard = cf::lock_acquire "map_load:$path";	2071	my $guard = cf::lock_acquire "map_data:$path";
1446		2072
		2073	return unless $self->valid;
1447	return if $self->in_memory != cf::MAP_SWAPPED;	2074	return unless $self->in_memory == cf::MAP_SWAPPED;
1448		2075
1449	$self->in_memory (cf::MAP_LOADING);	2076	$self->in_memory (cf::MAP_LOADING);
1450		2077
1451	$self->alloc;	2078	$self->alloc;
1452		2079
1453	$self->pre_load;	2080	$self->pre_load;
		2081	cf::cede_to_tick;
1454		2082
1455	$self->_load_objects ($self->{load_path}, 1)	2083	my $f = new_from_file cf::object::thawer $self->{load_path};
		2084	$f->skip_block;
		2085	$self->_load_objects ($f)
1456	or return;	2086	or return;
1457		2087
1458	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2088	$self->post_load_original
1459	if delete $self->{load_original};	2089	if delete $self->{load_original};
1460		2090
1461	if (my $uniq = $self->uniq_path) {	2091	if (my $uniq = $self->uniq_path) {
1462	utf8::encode $uniq;	2092	utf8::encode $uniq;
1463	if (aio_open $uniq, O_RDONLY, 0) {	2093	unless (aio_stat $uniq) {
		2094	if (my $f = new_from_file cf::object::thawer $uniq) {
1464	$self->clear_unique_items;	2095	$self->clear_unique_items;
1465	$self->_load_objects ($uniq, 0);	2096	$self->_load_objects ($f);
		2097	$f->resolve_delayed_derefs;
		2098	}
1466	}	2099	}
1467	}	2100	}
1468		2101
1469	Coro::cede;	2102	$f->resolve_delayed_derefs;
1470		2103
		2104	cf::cede_to_tick;
1471	# now do the right thing for maps	2105	# now do the right thing for maps
1472	$self->link_multipart_objects;	2106	$self->link_multipart_objects;
1473
1474	unless ($self->{deny_activate}) {
1475	$self->decay_objects;
1476	$self->fix_auto_apply;
1477	$self->update_buttons;
1478	Coro::cede;
1479	$self->set_darkness_map;
1480	$self->difficulty ($self->estimate_difficulty)	2107	$self->difficulty ($self->estimate_difficulty)
1481	unless $self->difficulty;	2108	unless $self->difficulty;
1482	Coro::cede;	2109	cf::cede_to_tick;
		2110
		2111	unless ($self->{deny_activate}) {
		2112	$self->decay_objects;
		2113	$self->fix_auto_apply;
		2114	$self->update_buttons;
		2115	cf::cede_to_tick;
1483	$self->activate;	2116	$self->activate;
		2117	}
		2118
		2119	$self->{last_save} = $cf::RUNTIME;
		2120	$self->last_access ($cf::RUNTIME);
		2121
		2122	$self->in_memory (cf::MAP_ACTIVE);
1484	}	2123	}
1485		2124
1486	$self->post_load;	2125	$self->post_load;
1487
1488	$self->in_memory (cf::MAP_IN_MEMORY);
1489	}	2126	}
1490		2127
		2128	# customize the map for a given player, i.e.
		2129	# return the _real_ map. used by e.g. per-player
		2130	# maps to change the path to ~playername/mappath
1491	sub customise_for {	2131	sub customise_for {
1492	my ($self, $ob) = @_;	2132	my ($self, $ob) = @_;
1493		2133
1494	return find "~" . $ob->name . "/" . $self->{path}	2134	return find "~" . $ob->name . "/" . $self->{path}
1495	if $self->per_player;	2135	if $self->per_player;
1496		2136
		2137	# return find "?party/" . $ob->name . "/" . $self->{path}
		2138	# if $self->per_party;
		2139
1497	$self	2140	$self
1498	}	2141	}
1499		2142
1500	# find and load all maps in the 3x3 area around a map	2143	# find and load all maps in the 3x3 area around a map
1501	sub load_diag {	2144	sub load_neighbours {
1502	my ($map) = @_;	2145	my ($map) = @_;
1503		2146
1504	my @diag; # diagonal neighbours	2147	my @neigh; # diagonal neighbours
1505		2148
1506	for (0 .. 3) {	2149	for (0 .. 3) {
1507	my $neigh = $map->tile_path ($_)	2150	my $neigh = $map->tile_path ($_)
1508	or next;	2151	or next;
1509	$neigh = find $neigh, $map	2152	$neigh = find $neigh, $map
1510	or next;	2153	or next;
1511	$neigh->load;	2154	$neigh->load;
1512		2155
		2156	push @neigh,
1513	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2157	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1514	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2158	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1515	}	2159	}
1516		2160
1517	for (@diag) {	2161	for (grep defined $_->[0], @neigh) {
		2162	my ($path, $origin) = @$_;
1518	my $neigh = find @$_	2163	my $neigh = find $path, $origin
1519	or next;	2164	or next;
1520	$neigh->load;	2165	$neigh->load;
1521	}	2166	}
1522	}	2167	}
1523		2168
…		…
1528	}	2173	}
1529		2174
1530	sub do_load_sync {	2175	sub do_load_sync {
1531	my ($map) = @_;	2176	my ($map) = @_;
1532		2177
		2178	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2179	if $Coro::current == $Coro::main;
		2180
1533	cf::sync_job { $map->load };	2181	cf::sync_job { $map->load };
1534	}	2182	}
1535		2183
1536	our %MAP_PREFETCH;	2184	our %MAP_PREFETCH;
1537	our $MAP_PREFETCHER = undef;	2185	our $MAP_PREFETCHER = undef;
1538		2186
1539	sub find_async {	2187	sub find_async {
1540	my ($path, $origin) = @_;	2188	my ($path, $origin, $load) = @_;
1541		2189
1542	$path = normalise $path, $origin && $origin->{path};	2190	$path = normalise $path, $origin && $origin->{path};
1543		2191
1544	if (my $map = $cf::MAP{$path}) {	2192	if (my $map = $cf::MAP{$path}) {
1545	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2193	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1546	}	2194	}
1547		2195
1548	undef $MAP_PREFETCH{$path};	2196	$MAP_PREFETCH{$path} |= $load;
		2197
1549	$MAP_PREFETCHER ||= cf::async {	2198	$MAP_PREFETCHER ||= cf::async {
		2199	$Coro::current->{desc} = "map prefetcher";
		2200
1550	while (%MAP_PREFETCH) {	2201	while (%MAP_PREFETCH) {
1551	for my $path (keys %MAP_PREFETCH) {	2202	while (my ($k, $v) = each %MAP_PREFETCH) {
1552	my $map = find $path	2203	if (my $map = find $k) {
1553	or next;
1554	$map->load;	2204	$map->load if $v;
		2205	}
1555		2206
1556	delete $MAP_PREFETCH{$path};	2207	delete $MAP_PREFETCH{$k};
1557	}	2208	}
1558	}	2209	}
1559	undef $MAP_PREFETCHER;	2210	undef $MAP_PREFETCHER;
1560	};	2211	};
1561	$MAP_PREFETCHER->prio (6);	2212	$MAP_PREFETCHER->prio (6);
…		…
1564	}	2215	}
1565		2216
1566	sub save {	2217	sub save {
1567	my ($self) = @_;	2218	my ($self) = @_;
1568		2219
1569	my $lock = cf::lock_acquire "map_data:" . $self->path;	2220	my $lock = cf::lock_acquire "map_data:$self->{path}";
1570		2221
1571	$self->{last_save} = $cf::RUNTIME;	2222	$self->{last_save} = $cf::RUNTIME;
1572		2223
1573	return unless $self->dirty;	2224	return unless $self->dirty;
1574		2225
…		…
1580	return if $self->{deny_save};	2231	return if $self->{deny_save};
1581		2232
1582	local $self->{last_access} = $self->last_access;#d#	2233	local $self->{last_access} = $self->last_access;#d#
1583		2234
1584	cf::async {	2235	cf::async {
		2236	$Coro::current->{desc} = "map player save";
1585	$_->contr->save for $self->players;	2237	$_->contr->save for $self->players;
1586	};	2238	};
		2239
		2240	cf::get_slot 0.02;
1587		2241
1588	if ($uniq) {	2242	if ($uniq) {
1589	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2243	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1590	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2244	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1591	} else {	2245	} else {
…		…
1597	my ($self) = @_;	2251	my ($self) = @_;
1598		2252
1599	# save first because save cedes	2253	# save first because save cedes
1600	$self->save;	2254	$self->save;
1601		2255
1602	my $lock = cf::lock_acquire "map_data:" . $self->path;	2256	my $lock = cf::lock_acquire "map_data:$self->{path}";
1603		2257
1604	return if $self->players;	2258	return if $self->players;
1605	return if $self->in_memory != cf::MAP_IN_MEMORY;	2259	return if $self->in_memory != cf::MAP_ACTIVE;
1606	return if $self->{deny_save};	2260	return if $self->{deny_save};
1607		2261
		2262	$self->in_memory (cf::MAP_SWAPPED);
		2263
		2264	$self->deactivate;
		2265	$_->clear_links_to ($self) for values %cf::MAP;
1608	$self->clear;	2266	$self->clear;
1609	$self->in_memory (cf::MAP_SWAPPED);
1610	}	2267	}
1611		2268
1612	sub reset_at {	2269	sub reset_at {
1613	my ($self) = @_;	2270	my ($self) = @_;
1614		2271
1615	# TODO: safety, remove and allow resettable per-player maps	2272	# TODO: safety, remove and allow resettable per-player maps
1616	return 1e99 if $self->isa ("ext::map_per_player");#d#
1617	return 1e99 if $self->{deny_reset};	2273	return 1e99 if $self->{deny_reset};
1618		2274
1619	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2275	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1620	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2276	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1621		2277
…		…
1632	my ($self) = @_;	2288	my ($self) = @_;
1633		2289
1634	my $lock = cf::lock_acquire "map_data:$self->{path}";	2290	my $lock = cf::lock_acquire "map_data:$self->{path}";
1635		2291
1636	return if $self->players;	2292	return if $self->players;
1637	return if $self->isa ("ext::map_per_player");#d#
1638		2293
1639	warn "resetting map ", $self->path;#d#	2294	warn "resetting map ", $self->path, "\n";
1640		2295
1641	$self->in_memory (cf::MAP_SWAPPED);	2296	$self->in_memory (cf::MAP_SWAPPED);
1642		2297
1643	# need to save uniques path	2298	# need to save uniques path
1644	unless ($self->{deny_save}) {	2299	unless ($self->{deny_save}) {
…		…
1648	if $uniq;	2303	if $uniq;
1649	}	2304	}
1650		2305
1651	delete $cf::MAP{$self->path};	2306	delete $cf::MAP{$self->path};
1652		2307
		2308	$self->deactivate;
		2309	$_->clear_links_to ($self) for values %cf::MAP;
1653	$self->clear;	2310	$self->clear;
1654
1655	$_->clear_links_to ($self) for values %cf::MAP;
1656		2311
1657	$self->unlink_save;	2312	$self->unlink_save;
1658	$self->destroy;	2313	$self->destroy;
1659	}	2314	}
1660		2315
1661	my $nuke_counter = "aaaa";	2316	my $nuke_counter = "aaaa";
1662		2317
1663	sub nuke {	2318	sub nuke {
1664	my ($self) = @_;	2319	my ($self) = @_;
1665		2320
		2321	{
		2322	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2323
1666	delete $cf::MAP{$self->path};	2324	delete $cf::MAP{$self->path};
1667		2325
1668	$self->unlink_save;	2326	$self->unlink_save;
1669		2327
1670	bless $self, "cf::map";	2328	bless $self, "cf::map";
1671	delete $self->{deny_reset};	2329	delete $self->{deny_reset};
1672	$self->{deny_save} = 1;	2330	$self->{deny_save} = 1;
1673	$self->reset_timeout (1);	2331	$self->reset_timeout (1);
1674	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2332	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1675		2333
1676	$cf::MAP{$self->path} = $self;	2334	$cf::MAP{$self->path} = $self;
		2335	}
1677		2336
1678	$self->reset; # polite request, might not happen	2337	$self->reset; # polite request, might not happen
		2338	}
		2339
		2340	=item $maps = cf::map::tmp_maps
		2341
		2342	Returns an arrayref with all map paths of currently instantiated and saved
		2343	maps. May block.
		2344
		2345	=cut
		2346
		2347	sub tmp_maps() {
		2348	[
		2349	map {
		2350	utf8::decode $_;
		2351	/\.map$/
		2352	? normalise $_
		2353	: ()
		2354	} @{ aio_readdir $TMPDIR or [] }
		2355	]
		2356	}
		2357
		2358	=item $maps = cf::map::random_maps
		2359
		2360	Returns an arrayref with all map paths of currently instantiated and saved
		2361	random maps. May block.
		2362
		2363	=cut
		2364
		2365	sub random_maps() {
		2366	[
		2367	map {
		2368	utf8::decode $_;
		2369	/\.map$/
		2370	? normalise "?random/$_"
		2371	: ()
		2372	} @{ aio_readdir $RANDOMDIR or [] }
		2373	]
1679	}	2374	}
1680		2375
1681	=item cf::map::unique_maps	2376	=item cf::map::unique_maps
1682		2377
1683	Returns an arrayref of paths of all shared maps that have	2378	Returns an arrayref of paths of all shared maps that have
1684	instantiated unique items. May block.	2379	instantiated unique items. May block.
1685		2380
1686	=cut	2381	=cut
1687		2382
1688	sub unique_maps() {	2383	sub unique_maps() {
1689	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2384	[
1690	or return;	2385	map {
1691
1692	my @paths;
1693
1694	for (@$files) {
1695	utf8::decode $_;	2386	utf8::decode $_;
1696	next if /\.pst$/;	2387	s/\.map$//; # TODO future compatibility hack
1697	next unless /^$PATH_SEP/o;	2388	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1698		2389	? ()
1699	push @paths, cf::map::normalise $_;	2390	: normalise $_
		2391	} @{ aio_readdir $UNIQUEDIR or [] }
1700	}	2392	]
1701
1702	\@paths
1703	}	2393	}
1704		2394
1705	package cf;	2395	=item cf::map::static_maps
		2396
		2397	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2398	file in the shared directory excluding F</styles> and F</editor>). May
		2399	block.
		2400
		2401	=cut
		2402
		2403	sub static_maps() {
		2404	my @dirs = "";
		2405	my @maps;
		2406
		2407	while (@dirs) {
		2408	my $dir = shift @dirs;
		2409
		2410	next if $dir eq "/styles" || $dir eq "/editor";
		2411
		2412	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2413	or return;
		2414
		2415	for (@$files) {
		2416	s/\.map$// or next;
		2417	utf8::decode $_;
		2418	push @maps, "$dir/$_";
		2419	}
		2420
		2421	push @dirs, map "$dir/$_", @$dirs;
		2422	}
		2423
		2424	\@maps
		2425	}
1706		2426
1707	=back	2427	=back
1708		2428
1709	=head3 cf::object	2429	=head3 cf::object
1710		2430
…		…
1714		2434
1715	=over 4	2435	=over 4
1716		2436
1717	=item $ob->inv_recursive	2437	=item $ob->inv_recursive
1718		2438
1719	Returns the inventory of the object _and_ their inventories, recursively.	2439	Returns the inventory of the object I<and> their inventories, recursively,
		2440	but I<not> the object itself.
1720		2441
1721	=cut	2442	=cut
1722		2443
1723	sub inv_recursive_;	2444	sub inv_recursive_;
1724	sub inv_recursive_ {	2445	sub inv_recursive_ {
…		…
1727		2448
1728	sub inv_recursive {	2449	sub inv_recursive {
1729	inv_recursive_ inv $_[0]	2450	inv_recursive_ inv $_[0]
1730	}	2451	}
1731		2452
		2453	=item $ref = $ob->ref
		2454
		2455	Creates and returns a persistent reference to an object that can be stored as a string.
		2456
		2457	=item $ob = cf::object::deref ($refstring)
		2458
		2459	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2460	even if the object actually exists. May block.
		2461
		2462	=cut
		2463
		2464	sub deref {
		2465	my ($ref) = @_;
		2466
		2467	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2468	my ($uuid, $name) = ($1, $2);
		2469	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2470	or return;
		2471	$pl->ob->uuid eq $uuid
		2472	or return;
		2473
		2474	$pl->ob
		2475	} else {
		2476	warn "$ref: cannot resolve object reference\n";
		2477	undef
		2478	}
		2479	}
		2480
1732	package cf;	2481	package cf;
1733		2482
1734	=back	2483	=back
1735		2484
1736	=head3 cf::object::player	2485	=head3 cf::object::player
…		…
1742	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2491	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1743	can be C<undef>. Does the right thing when the player is currently in a	2492	can be C<undef>. Does the right thing when the player is currently in a
1744	dialogue with the given NPC character.	2493	dialogue with the given NPC character.
1745		2494
1746	=cut	2495	=cut
		2496
		2497	our $SAY_CHANNEL = {
		2498	id => "say",
		2499	title => "Map",
		2500	reply => "say ",
		2501	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2502	};
		2503
		2504	our $CHAT_CHANNEL = {
		2505	id => "chat",
		2506	title => "Chat",
		2507	reply => "chat ",
		2508	tooltip => "Player chat and shouts, global to the server.",
		2509	};
1747		2510
1748	# rough implementation of a future "reply" method that works	2511	# rough implementation of a future "reply" method that works
1749	# with dialog boxes.	2512	# with dialog boxes.
1750	#TODO: the first argument must go, split into a $npc->reply_to ( method	2513	#TODO: the first argument must go, split into a $npc->reply_to ( method
1751	sub cf::object::player::reply($$$;$) {	2514	sub cf::object::player::reply($$$;$) {
…		…
1753		2516
1754	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2517	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1755		2518
1756	if ($self->{record_replies}) {	2519	if ($self->{record_replies}) {
1757	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2520	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2521
1758	} else {	2522	} else {
		2523	my $pl = $self->contr;
		2524
		2525	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2526	my $dialog = $pl->{npc_dialog};
		2527	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2528
		2529	} else {
1759	$msg = $npc->name . " says: $msg" if $npc;	2530	$msg = $npc->name . " says: $msg" if $npc;
1760	$self->message ($msg, $flags);	2531	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2532	}
1761	}	2533	}
		2534	}
		2535
		2536	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2537
		2538	=cut
		2539
		2540	sub cf::object::send_msg {
		2541	my $pl = shift->contr
		2542	or return;
		2543	$pl->send_msg (@_);
1762	}	2544	}
1763		2545
1764	=item $player_object->may ("access")	2546	=item $player_object->may ("access")
1765		2547
1766	Returns wether the given player is authorized to access resource "access"	2548	Returns wether the given player is authorized to access resource "access"
…		…
1779		2561
1780	=item $player_object->enter_link	2562	=item $player_object->enter_link
1781		2563
1782	Freezes the player and moves him/her to a special map (C<{link}>).	2564	Freezes the player and moves him/her to a special map (C<{link}>).
1783		2565
1784	The player should be reasonably safe there for short amounts of time. You	2566	The player should be reasonably safe there for short amounts of time (e.g.
1785	I<MUST> call C<leave_link> as soon as possible, though.	2567	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2568	though, as the palyer cannot control the character while it is on the link
		2569	map.
1786		2570
1787	Will never block.	2571	Will never block.
1788		2572
1789	=item $player_object->leave_link ($map, $x, $y)	2573	=item $player_object->leave_link ($map, $x, $y)
1790		2574
…		…
1813	$self->deactivate_recursive;	2597	$self->deactivate_recursive;
1814		2598
1815	return if UNIVERSAL::isa $self->map, "ext::map_link";	2599	return if UNIVERSAL::isa $self->map, "ext::map_link";
1816		2600
1817	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2601	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1818	if $self->map;	2602	if $self->map && $self->map->{path} ne "{link}";
1819		2603
1820	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2604	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1821	}	2605	}
1822		2606
1823	sub cf::object::player::leave_link {	2607	sub cf::object::player::leave_link {
1824	my ($self, $map, $x, $y) = @_;	2608	my ($self, $map, $x, $y) = @_;
		2609
		2610	return unless $self->contr->active;
1825		2611
1826	my $link_pos = delete $self->{_link_pos};	2612	my $link_pos = delete $self->{_link_pos};
1827		2613
1828	unless ($map) {	2614	unless ($map) {
1829	# restore original map position	2615	# restore original map position
…		…
1840	($x, $y) = (-1, -1)	2626	($x, $y) = (-1, -1)
1841	unless (defined $x) && (defined $y);	2627	unless (defined $x) && (defined $y);
1842		2628
1843	# use -1 or undef as default coordinates, not 0, 0	2629	# use -1 or undef as default coordinates, not 0, 0
1844	($x, $y) = ($map->enter_x, $map->enter_y)	2630	($x, $y) = ($map->enter_x, $map->enter_y)
1845	if $x <=0 && $y <= 0;	2631	if $x <= 0 && $y <= 0;
1846		2632
1847	$map->load;	2633	$map->load;
1848	$map->load_diag;	2634	$map->load_neighbours;
1849		2635
1850	return unless $self->contr->active;	2636	return unless $self->contr->active;
1851	$self->activate_recursive;
1852		2637
1853	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2638	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1854	$self->enter_map ($map, $x, $y);	2639	$self->enter_map ($map, $x, $y);
1855	}
1856		2640
1857	cf::player->attach (	2641	# only activate afterwards, to support waiting in hooks
1858	on_logout => sub {	2642	$self->activate_recursive;
1859	my ($pl) = @_;	2643	}
1860		2644
1861	# abort map switching before logout	2645	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1862	if ($pl->ob->{_link_pos}) {
1863	cf::sync_job {
1864	$pl->ob->leave_link
1865	};
1866	}
1867	},
1868	on_login => sub {
1869	my ($pl) = @_;
1870		2646
1871	# try to abort aborted map switching on player login :)	2647	Moves the player to the given map-path and coordinates by first freezing
1872	# should happen only on crashes	2648	her, loading and preparing them map, calling the provided $check callback
1873	if ($pl->ob->{_link_pos}) {	2649	that has to return the map if sucecssful, and then unfreezes the player on
1874	$pl->ob->enter_link;	2650	the new (success) or old (failed) map position. In either case, $done will
1875	(async {	2651	be called at the end of this process.
1876	$pl->ob->reply (undef,
1877	"There was an internal problem at your last logout, "
1878	. "the server will try to bring you to your intended destination in a second.",
1879	cf::NDI_RED);
1880	# we need this sleep as the login has a concurrent enter_exit running
1881	# and this sleep increases chances of the player not ending up in scorn
1882	Coro::Timer::sleep 1;
1883	$pl->ob->leave_link;
1884	})->prio (2);
1885	}
1886	},
1887	);
1888		2652
1889	=item $player_object->goto ($path, $x, $y)	2653	Note that $check will be called with a potentially non-loaded map, so if
		2654	it needs a loaded map it has to call C<< ->load >>.
1890		2655
1891	=cut	2656	=cut
		2657
		2658	our $GOTOGEN;
1892		2659
1893	sub cf::object::player::goto {	2660	sub cf::object::player::goto {
1894	my ($self, $path, $x, $y) = @_;	2661	my ($self, $path, $x, $y, $check, $done) = @_;
		2662
		2663	# do generation counting so two concurrent goto's will be executed in-order
		2664	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1895		2665
1896	$self->enter_link;	2666	$self->enter_link;
1897		2667
1898	(async {	2668	(async {
		2669	$Coro::current->{desc} = "player::goto $path $x $y";
		2670
		2671	# *tag paths override both path and x|y
		2672	if ($path =~ /^\*(.*)$/) {
		2673	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2674	my $ob = $obs[rand @obs];
		2675
		2676	# see if we actually can go there
		2677	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2678	$ob = $obs[rand @obs];
		2679	} else {
		2680	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2681	}
		2682	# else put us there anyways for now #d#
		2683
		2684	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2685	} else {
		2686	($path, $x, $y) = (undef, undef, undef);
		2687	}
		2688	}
		2689
1899	my $map = eval {	2690	my $map = eval {
1900	my $map = cf::map::find $path;	2691	my $map = defined $path ? cf::map::find $path : undef;
		2692
		2693	if ($map) {
1901	$map = $map->customise_for ($self) if $map;	2694	$map = $map->customise_for ($self);
		2695	$map = $check->($map) if $check && $map;
		2696	} else {
		2697	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2698	}
		2699
1902	$map	2700	$map
		2701	};
		2702
		2703	if ($@) {
		2704	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2705	LOG llevError | logBacktrace, Carp::longmess $@;
1903	} or	2706	}
1904	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1905		2707
		2708	if ($gen == $self->{_goto_generation}) {
		2709	delete $self->{_goto_generation};
1906	$self->leave_link ($map, $x, $y);	2710	$self->leave_link ($map, $x, $y);
		2711	}
		2712
		2713	$done->() if $done;
1907	})->prio (1);	2714	})->prio (1);
1908	}	2715	}
1909		2716
1910	=item $player_object->enter_exit ($exit_object)	2717	=item $player_object->enter_exit ($exit_object)
1911		2718
…		…
1931	}	2738	}
1932		2739
1933	sub prepare_random_map {	2740	sub prepare_random_map {
1934	my ($exit) = @_;	2741	my ($exit) = @_;
1935		2742
1936	my $guard = cf::lock_acquire "exit_prepare:$exit";
1937
1938	# all this does is basically replace the /! path by	2743	# all this does is basically replace the /! path by
1939	# a new random map path (?random/...) with a seed	2744	# a new random map path (?random/...) with a seed
1940	# that depends on the exit object	2745	# that depends on the exit object
1941		2746
1942	my $rmp = parse_random_map_params $exit->msg;	2747	my $rmp = parse_random_map_params $exit->msg;
…		…
1944	if ($exit->map) {	2749	if ($exit->map) {
1945	$rmp->{region} = $exit->region->name;	2750	$rmp->{region} = $exit->region->name;
1946	$rmp->{origin_map} = $exit->map->path;	2751	$rmp->{origin_map} = $exit->map->path;
1947	$rmp->{origin_x} = $exit->x;	2752	$rmp->{origin_x} = $exit->x;
1948	$rmp->{origin_y} = $exit->y;	2753	$rmp->{origin_y} = $exit->y;
		2754
		2755	$exit->map->touch;
1949	}	2756	}
1950		2757
1951	$rmp->{random_seed} ||= $exit->random_seed;	2758	$rmp->{random_seed} ||= $exit->random_seed;
1952		2759
1953	my $data = cf::to_json $rmp;	2760	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1954	my $md5 = Digest::MD5::md5_hex $data;	2761	my $md5 = Digest::MD5::md5_hex $data;
1955	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2762	my $meta = "$RANDOMDIR/$md5.meta";
1956		2763
1957	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2764	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1958	aio_write $fh, 0, (length $data), $data, 0;	2765	aio_write $fh, 0, (length $data), $data, 0;
1959	undef $fh;	2766	undef $fh;
1960	aio_rename "$meta~", $meta;	2767	aio_rename "$meta~", $meta;
1961		2768
		2769	my $slaying = "?random/$md5";
		2770
		2771	if ($exit->valid) {
1962	$exit->slaying ("?random/$md5");	2772	$exit->slaying ("?random/$md5");
1963	$exit->msg (undef);	2773	$exit->msg (undef);
		2774	}
1964	}	2775	}
1965	}	2776	}
1966		2777
1967	sub cf::object::player::enter_exit {	2778	sub cf::object::player::enter_exit {
1968	my ($self, $exit) = @_;	2779	my ($self, $exit) = @_;
1969		2780
1970	return unless $self->type == cf::PLAYER;	2781	return unless $self->type == cf::PLAYER;
1971		2782
1972	if ($exit->slaying eq "/!") {
1973	#TODO: this should de-fi-ni-te-ly not be a sync-job
1974	cf::sync_job { prepare_random_map $exit };
1975	}
1976
1977	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1978	my $hp = $exit->stats->hp;
1979	my $sp = $exit->stats->sp;
1980
1981	$self->enter_link;	2783	$self->enter_link;
1982		2784
1983	(async {	2785	(async {
1984	$self->deactivate_recursive; # just to be sure	2786	$Coro::current->{desc} = "enter_exit";
		2787
1985	unless (eval {	2788	unless (eval {
		2789	$self->deactivate_recursive; # just to be sure
		2790
		2791	# random map handling
		2792	{
		2793	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2794
		2795	prepare_random_map $exit
		2796	if $exit->slaying eq "/!";
		2797	}
		2798
		2799	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2800	my $x = $exit->stats->hp;
		2801	my $y = $exit->stats->sp;
		2802
1986	$self->goto ($slaying, $hp, $sp);	2803	$self->goto ($map, $x, $y);
1987		2804
		2805	# if exit is damned, update players death & WoR home-position
		2806	$self->contr->savebed ($map, $x, $y)
		2807	if $exit->flag (cf::FLAG_DAMNED);
		2808
1988	1;	2809	1
1989	}) {	2810	}) {
1990	$self->message ("Something went wrong deep within the crossfire server. "	2811	$self->message ("Something went wrong deep within the deliantra server. "
1991	. "I'll try to bring you back to the map you were before. "	2812	. "I'll try to bring you back to the map you were before. "
1992	. "Please report this to the dungeon master!",	2813	. "Please report this to the dungeon master!",
1993	cf::NDI_UNIQUE | cf::NDI_RED);	2814	cf::NDI_UNIQUE | cf::NDI_RED);
1994		2815
1995	warn "ERROR in enter_exit: $@";	2816	warn "ERROR in enter_exit: $@";
1996	$self->leave_link;	2817	$self->leave_link;
1997	}	2818	}
1998	})->prio (1);	2819	})->prio (1);
…		…
2014		2835
2015	utf8::encode $text;	2836	utf8::encode $text;
2016	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2837	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2017	}	2838	}
2018		2839
		2840	=item $client->send_big_packet ($pkt)
		2841
		2842	Like C<send_packet>, but tries to compress large packets, and fragments
		2843	them as required.
		2844
		2845	=cut
		2846
		2847	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2848
		2849	sub cf::client::send_big_packet {
		2850	my ($self, $pkt) = @_;
		2851
		2852	# try lzf for large packets
		2853	$pkt = "lzf " . Compress::LZF::compress $pkt
		2854	if 1024 <= length $pkt and $self->{can_lzf};
		2855
		2856	# split very large packets
		2857	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2858	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2859	$pkt = "frag";
		2860	}
		2861
		2862	$self->send_packet ($pkt);
		2863	}
		2864
		2865	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2866
		2867	Send a drawinfo or msg packet to the client, formatting the msg for the
		2868	client if neccessary. C<$type> should be a string identifying the type of
		2869	the message, with C<log> being the default. If C<$color> is negative, suppress
		2870	the message unless the client supports the msg packet.
		2871
		2872	=cut
		2873
		2874	# non-persistent channels (usually the info channel)
		2875	our %CHANNEL = (
		2876	"c/motd" => {
		2877	id => "infobox",
		2878	title => "MOTD",
		2879	reply => undef,
		2880	tooltip => "The message of the day",
		2881	},
		2882	"c/identify" => {
		2883	id => "infobox",
		2884	title => "Identify",
		2885	reply => undef,
		2886	tooltip => "Items recently identified",
		2887	},
		2888	"c/examine" => {
		2889	id => "infobox",
		2890	title => "Examine",
		2891	reply => undef,
		2892	tooltip => "Signs and other items you examined",
		2893	},
		2894	"c/shopinfo" => {
		2895	id => "infobox",
		2896	title => "Shop Info",
		2897	reply => undef,
		2898	tooltip => "What your bargaining skill tells you about the shop",
		2899	},
		2900	"c/book" => {
		2901	id => "infobox",
		2902	title => "Book",
		2903	reply => undef,
		2904	tooltip => "The contents of a note or book",
		2905	},
		2906	"c/lookat" => {
		2907	id => "infobox",
		2908	title => "Look",
		2909	reply => undef,
		2910	tooltip => "What you saw there",
		2911	},
		2912	"c/who" => {
		2913	id => "infobox",
		2914	title => "Players",
		2915	reply => undef,
		2916	tooltip => "Shows players who are currently online",
		2917	},
		2918	"c/body" => {
		2919	id => "infobox",
		2920	title => "Body Parts",
		2921	reply => undef,
		2922	tooltip => "Shows which body parts you posess and are available",
		2923	},
		2924	"c/statistics" => {
		2925	id => "infobox",
		2926	title => "Statistics",
		2927	reply => undef,
		2928	tooltip => "Shows your primary statistics",
		2929	},
		2930	"c/skills" => {
		2931	id => "infobox",
		2932	title => "Skills",
		2933	reply => undef,
		2934	tooltip => "Shows your experience per skill and item power",
		2935	},
		2936	"c/shopitems" => {
		2937	id => "infobox",
		2938	title => "Shop Items",
		2939	reply => undef,
		2940	tooltip => "Shows the items currently for sale in this shop",
		2941	},
		2942	"c/resistances" => {
		2943	id => "infobox",
		2944	title => "Resistances",
		2945	reply => undef,
		2946	tooltip => "Shows your resistances",
		2947	},
		2948	"c/pets" => {
		2949	id => "infobox",
		2950	title => "Pets",
		2951	reply => undef,
		2952	tooltip => "Shows information abotu your pets/a specific pet",
		2953	},
		2954	"c/perceiveself" => {
		2955	id => "infobox",
		2956	title => "Perceive Self",
		2957	reply => undef,
		2958	tooltip => "You gained detailed knowledge about yourself",
		2959	},
		2960	"c/uptime" => {
		2961	id => "infobox",
		2962	title => "Uptime",
		2963	reply => undef,
		2964	tooltip => "How long the server has been running since last restart",
		2965	},
		2966	"c/mapinfo" => {
		2967	id => "infobox",
		2968	title => "Map Info",
		2969	reply => undef,
		2970	tooltip => "Information related to the maps",
		2971	},
		2972	"c/party" => {
		2973	id => "party",
		2974	title => "Party",
		2975	reply => "gsay ",
		2976	tooltip => "Messages and chat related to your party",
		2977	},
		2978	"c/death" => {
		2979	id => "death",
		2980	title => "Death",
		2981	reply => undef,
		2982	tooltip => "Reason for and more info about your most recent death",
		2983	},
		2984	"c/say" => $SAY_CHANNEL,
		2985	"c/chat" => $CHAT_CHANNEL,
		2986	);
		2987
		2988	sub cf::client::send_msg {
		2989	my ($self, $channel, $msg, $color, @extra) = @_;
		2990
		2991	$msg = $self->pl->expand_cfpod ($msg)
		2992	unless $color & cf::NDI_VERBATIM;
		2993
		2994	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2995
		2996	# check predefined channels, for the benefit of C
		2997	if ($CHANNEL{$channel}) {
		2998	$channel = $CHANNEL{$channel};
		2999
		3000	$self->ext_msg (channel_info => $channel);
		3001	$channel = $channel->{id};
		3002
		3003	} elsif (ref $channel) {
		3004	# send meta info to client, if not yet sent
		3005	unless (exists $self->{channel}{$channel->{id}}) {
		3006	$self->{channel}{$channel->{id}} = $channel;
		3007	$self->ext_msg (channel_info => $channel);
		3008	}
		3009
		3010	$channel = $channel->{id};
		3011	}
		3012
		3013	return unless @extra || length $msg;
		3014
		3015	# default colour, mask it out
		3016	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3017	if $color & cf::NDI_DEF;
		3018
		3019	my $pkt = "msg "
		3020	. $self->{json_coder}->encode (
		3021	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3022	);
		3023
		3024	$self->send_big_packet ($pkt);
		3025	}
		3026
		3027	=item $client->ext_msg ($type, @msg)
		3028
		3029	Sends an ext event to the client.
		3030
		3031	=cut
		3032
		3033	sub cf::client::ext_msg($$@) {
		3034	my ($self, $type, @msg) = @_;
		3035
		3036	if ($self->extcmd == 2) {
		3037	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3038	} elsif ($self->extcmd == 1) { # TODO: remove
		3039	push @msg, msgtype => "event_$type";
		3040	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3041	}
		3042	}
		3043
		3044	=item $client->ext_reply ($msgid, @msg)
		3045
		3046	Sends an ext reply to the client.
		3047
		3048	=cut
		3049
		3050	sub cf::client::ext_reply($$@) {
		3051	my ($self, $id, @msg) = @_;
		3052
		3053	if ($self->extcmd == 2) {
		3054	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3055	} elsif ($self->extcmd == 1) {
		3056	#TODO: version 1, remove
		3057	unshift @msg, msgtype => "reply", msgid => $id;
		3058	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3059	}
		3060	}
2019		3061
2020	=item $success = $client->query ($flags, "text", \&cb)	3062	=item $success = $client->query ($flags, "text", \&cb)
2021		3063
2022	Queues a query to the client, calling the given callback with	3064	Queues a query to the client, calling the given callback with
2023	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3065	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2024	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3066	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2025		3067
2026	Queries can fail, so check the return code. Or don't, as queries will become	3068	Queries can fail, so check the return code. Or don't, as queries will
2027	reliable at some point in the future.	3069	become reliable at some point in the future.
2028		3070
2029	=cut	3071	=cut
2030		3072
2031	sub cf::client::query {	3073	sub cf::client::query {
2032	my ($self, $flags, $text, $cb) = @_;	3074	my ($self, $flags, $text, $cb) = @_;
…		…
2040	utf8::encode $text;	3082	utf8::encode $text;
2041	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3083	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2042		3084
2043	$self->send_packet ($self->{query_queue}[0][0])	3085	$self->send_packet ($self->{query_queue}[0][0])
2044	if @{ $self->{query_queue} } == 1;	3086	if @{ $self->{query_queue} } == 1;
		3087
		3088	1
2045	}	3089	}
2046		3090
2047	cf::client->attach (	3091	cf::client->attach (
		3092	on_connect => sub {
		3093	my ($ns) = @_;
		3094
		3095	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3096	},
2048	on_reply => sub {	3097	on_reply => sub {
2049	my ($ns, $msg) = @_;	3098	my ($ns, $msg) = @_;
2050		3099
2051	# this weird shuffling is so that direct followup queries	3100	# this weird shuffling is so that direct followup queries
2052	# get handled first	3101	# get handled first
…		…
2064	} else {	3113	} else {
2065	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3114	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2066	}	3115	}
2067	}	3116	}
2068	},	3117	},
		3118	on_exticmd => sub {
		3119	my ($ns, $buf) = @_;
		3120
		3121	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3122
		3123	if (ref $msg) {
		3124	my ($type, $reply, @payload) =
		3125	"ARRAY" eq ref $msg
		3126	? @$msg
		3127	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3128
		3129	my @reply;
		3130
		3131	if (my $cb = $EXTICMD{$type}) {
		3132	@reply = $cb->($ns, @payload);
		3133	}
		3134
		3135	$ns->ext_reply ($reply, @reply)
		3136	if $reply;
		3137
		3138	} else {
		3139	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3140	}
		3141
		3142	cf::override;
		3143	},
2069	);	3144	);
2070		3145
2071	=item $client->async (\&cb)	3146	=item $client->async (\&cb)
2072		3147
2073	Create a new coroutine, running the specified callback. The coroutine will	3148	Create a new coroutine, running the specified callback. The coroutine will
…		…
2089		3164
2090	$coro	3165	$coro
2091	}	3166	}
2092		3167
2093	cf::client->attach (	3168	cf::client->attach (
2094	on_destroy => sub {	3169	on_client_destroy => sub {
2095	my ($ns) = @_;	3170	my ($ns) = @_;
2096		3171
2097	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3172	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2098	},	3173	},
2099	);	3174	);
…		…
2114	our $safe = new Safe "safe";	3189	our $safe = new Safe "safe";
2115	our $safe_hole = new Safe::Hole;	3190	our $safe_hole = new Safe::Hole;
2116		3191
2117	$SIG{FPE} = 'IGNORE';	3192	$SIG{FPE} = 'IGNORE';
2118		3193
2119	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3194	$safe->permit_only (Opcode::opset qw(
		3195	:base_core :base_mem :base_orig :base_math :base_loop
		3196	grepstart grepwhile mapstart mapwhile
		3197	sort time
		3198	));
2120		3199
2121	# here we export the classes and methods available to script code	3200	# here we export the classes and methods available to script code
2122		3201
2123	=pod	3202	=pod
2124		3203
2125	The following functions and methods are available within a safe environment:	3204	The following functions and methods are available within a safe environment:
2126		3205
2127	cf::object contr pay_amount pay_player map	3206	cf::object
		3207	contr pay_amount pay_player map x y force_find force_add destroy
		3208	insert remove name archname title slaying race decrease split
		3209	value
		3210
2128	cf::object::player player	3211	cf::object::player
2129	cf::player peaceful	3212	player
2130	cf::map trigger	3213
		3214	cf::player
		3215	peaceful
		3216
		3217	cf::map
		3218	trigger
2131		3219
2132	=cut	3220	=cut
2133		3221
2134	for (	3222	for (
2135	["cf::object" => qw(contr pay_amount pay_player map)],	3223	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3224	insert remove inv nrof name archname title slaying race
		3225	decrease split destroy change_exp value msg lore send_msg)],
2136	["cf::object::player" => qw(player)],	3226	["cf::object::player" => qw(player)],
2137	["cf::player" => qw(peaceful)],	3227	["cf::player" => qw(peaceful send_msg)],
2138	["cf::map" => qw(trigger)],	3228	["cf::map" => qw(trigger)],
2139	) {	3229	) {
2140	no strict 'refs';	3230	no strict 'refs';
2141	my ($pkg, @funs) = @$_;	3231	my ($pkg, @funs) = @$_;
2142	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3232	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2160		3250
2161	my $qcode = $code;	3251	my $qcode = $code;
2162	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3252	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2163	$qcode =~ s/\n/\\n/g;	3253	$qcode =~ s/\n/\\n/g;
2164		3254
		3255	%vars = (_dummy => 0) unless %vars;
		3256
		3257	my @res;
2165	local $_;	3258	local $_;
2166	local @safe::cf::_safe_eval_args = values %vars;
2167		3259
2168	my $eval =	3260	my $eval =
2169	"do {\n"	3261	"do {\n"
2170	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3262	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2171	. "#line 0 \"{$qcode}\"\n"	3263	. "#line 0 \"{$qcode}\"\n"
2172	. $code	3264	. $code
2173	. "\n}"	3265	. "\n}"
2174	;	3266	;
2175		3267
		3268	if ($CFG{safe_eval}) {
2176	sub_generation_inc;	3269	sub_generation_inc;
		3270	local @safe::cf::_safe_eval_args = values %vars;
2177	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3271	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2178	sub_generation_inc;	3272	sub_generation_inc;
		3273	} else {
		3274	local @cf::_safe_eval_args = values %vars;
		3275	@res = wantarray ? eval eval : scalar eval $eval;
		3276	}
2179		3277
2180	if ($@) {	3278	if ($@) {
2181	warn "$@";	3279	warn "$@";
2182	warn "while executing safe code '$code'\n";	3280	warn "while executing safe code '$code'\n";
2183	warn "with arguments " . (join " ", %vars) . "\n";	3281	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2202	=cut	3300	=cut
2203		3301
2204	sub register_script_function {	3302	sub register_script_function {
2205	my ($fun, $cb) = @_;	3303	my ($fun, $cb) = @_;
2206		3304
2207	no strict 'refs';	3305	$fun = "safe::$fun" if $CFG{safe_eval};
2208	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3306	*$fun = $safe_hole->wrap ($cb);
2209	}	3307	}
2210		3308
2211	=back	3309	=back
2212		3310
2213	=cut	3311	=cut
2214
2215	#############################################################################
2216
2217	=head2 EXTENSION DATABASE SUPPORT
2218
2219	Crossfire maintains a very simple database for extension use. It can
2220	currently store anything that can be serialised using Storable, which
2221	excludes objects.
2222
2223	The parameter C<$family> should best start with the name of the extension
2224	using it, it should be unique.
2225
2226	=over 4
2227
2228	=item $value = cf::db_get $family => $key
2229
2230	Returns a single value from the database.
2231
2232	=item cf::db_put $family => $key => $value
2233
2234	Stores the given C<$value> in the family.
2235
2236	=cut
2237
2238	our $DB;
2239
2240	sub db_init {
2241	unless ($DB) {
2242	$DB = BDB::db_create $DB_ENV;
2243
2244	cf::sync_job {
2245	eval {
2246	$DB->set_flags (BDB::CHKSUM);
2247
2248	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2249	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2250	cf::cleanup "db_open(db): $!" if $!;
2251	};
2252	cf::cleanup "db_open(db): $@" if $@;
2253	};
2254
2255	my $path = cf::localdir . "/database.pst";
2256	if (stat $path) {
2257	cf::sync_job {
2258	my $pst = Storable::retrieve $path;
2259
2260	cf::db_put (board => data => $pst->{board});
2261	cf::db_put (guildrules => data => $pst->{guildrules});
2262	cf::db_put (rent => balance => $pst->{rent}{balance});
2263	BDB::db_env_txn_checkpoint $DB_ENV;
2264
2265	unlink $path;
2266	};
2267	}
2268	}
2269	}
2270
2271	sub db_get($$) {
2272	my $key = "$_[0]/$_[1]";
2273
2274	cf::sync_job {
2275	BDB::db_get $DB, undef, $key, my $data;
2276
2277	$! ? ()
2278	: Compress::LZF::sthaw $data
2279	}
2280	}
2281
2282	sub db_put($$$) {
2283	BDB::dbreq_pri 4;
2284	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2285	}
2286		3312
2287	#############################################################################	3313	#############################################################################
2288	# the server's init and main functions	3314	# the server's init and main functions
2289		3315
2290	sub load_facedata {	3316	sub load_facedata($) {
2291	my $path = sprintf "%s/facedata", cf::datadir;	3317	my ($path) = @_;
		3318
		3319	# HACK to clear player env face cache, we need some signal framework
		3320	# for this (global event?)
		3321	%ext::player_env::MUSIC_FACE_CACHE = ();
		3322
		3323	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2292		3324
2293	warn "loading facedata from $path\n";	3325	warn "loading facedata from $path\n";
2294		3326
2295	my $faces;	3327	my $facedata;
2296	0 < aio_load $path, $faces	3328	0 < aio_load $path, $facedata
2297	or die "$path: $!";	3329	or die "$path: $!";
2298		3330
2299	Coro::cede;
2300	$faces = Storable::thaw $faces;	3331	$facedata = Coro::Storable::thaw $facedata;
2301	Coro::cede;
2302		3332
2303	my $meta = delete $faces->{""};
2304	$meta->{version} == 1	3333	$facedata->{version} == 2
2305	or cf::cleanup "$path: version mismatch, cannot proceed.";	3334	or cf::cleanup "$path: version mismatch, cannot proceed.";
2306		3335
		3336	# patch in the exptable
		3337	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3338	$facedata->{resource}{"res/exp_table"} = {
		3339	type => FT_RSRC,
		3340	data => $exp_table,
		3341	hash => (Digest::MD5::md5 $exp_table),
		3342	};
		3343	cf::cede_to_tick;
		3344
		3345	{
		3346	my $faces = $facedata->{faceinfo};
		3347
2307	while (my ($face, $info) = each %$faces) {	3348	while (my ($face, $info) = each %$faces) {
2308	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3349	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2309	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3350
		3351	cf::face::set_visibility $idx, $info->{visibility};
		3352	cf::face::set_magicmap $idx, $info->{magicmap};
2310	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3353	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2311	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3354	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2312	Coro::cede;
2313	}
2314		3355
		3356	cf::cede_to_tick;
		3357	}
		3358
2315	while (my ($face, $info) = each %$faces) {	3359	while (my ($face, $info) = each %$faces) {
2316	next unless $info->{smooth};	3360	next unless $info->{smooth};
		3361
2317	my $idx = cf::face::find $face	3362	my $idx = cf::face::find $face
2318	or next;	3363	or next;
		3364
2319	if (my $smooth = cf::face::find $info->{smooth}) {	3365	if (my $smooth = cf::face::find $info->{smooth}) {
2320	cf::face::set_smooth $idx, $smooth;	3366	cf::face::set_smooth $idx, $smooth;
		3367	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2321	} else {	3368	} else {
2322	warn "smooth face '$info->{smooth}' not found for face '$face'";	3369	warn "smooth face '$info->{smooth}' not found for face '$face'";
2323	}	3370	}
2324	Coro::cede;	3371
		3372	cf::cede_to_tick;
		3373	}
		3374	}
		3375
2325	}	3376	{
		3377	my $anims = $facedata->{animinfo};
		3378
		3379	while (my ($anim, $info) = each %$anims) {
		3380	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3381	cf::cede_to_tick;
		3382	}
		3383
		3384	cf::anim::invalidate_all; # d'oh
		3385	}
		3386
		3387	{
		3388	my $res = $facedata->{resource};
		3389
		3390	while (my ($name, $info) = each %$res) {
		3391	if (defined $info->{type}) {
		3392	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3393
		3394	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3395	cf::face::set_type $idx, $info->{type};
		3396	} else {
		3397	$RESOURCE{$name} = $info;
		3398	}
		3399
		3400	cf::cede_to_tick;
		3401	}
		3402	}
		3403
		3404	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
2326		3405
2327	1	3406	1
2328	}	3407	}
2329		3408
		3409	cf::global->attach (on_resource_update => sub {
		3410	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3411	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3412
		3413	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3414	my $sound = $soundconf->{compat}[$_]
		3415	or next;
		3416
		3417	my $face = cf::face::find "sound/$sound->[1]";
		3418	cf::sound::set $sound->[0] => $face;
		3419	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3420	}
		3421
		3422	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3423	my $face = cf::face::find "sound/$v";
		3424	cf::sound::set $k => $face;
		3425	}
		3426	}
		3427	});
		3428
		3429	register_exticmd fx_want => sub {
		3430	my ($ns, $want) = @_;
		3431
		3432	while (my ($k, $v) = each %$want) {
		3433	$ns->fx_want ($k, $v);
		3434	}
		3435	};
		3436
		3437	sub load_resource_file($) {
		3438	my $guard = lock_acquire "load_resource_file";
		3439
		3440	my $status = load_resource_file_ $_[0];
		3441	get_slot 0.1, 100;
		3442	cf::arch::commit_load;
		3443
		3444	$status
		3445	}
		3446
		3447	sub reload_regions {
		3448	# HACK to clear player env face cache, we need some signal framework
		3449	# for this (global event?)
		3450	%ext::player_env::MUSIC_FACE_CACHE = ();
		3451
		3452	load_resource_file "$MAPDIR/regions"
		3453	or die "unable to load regions file\n";
		3454
		3455	for (cf::region::list) {
		3456	$_->{match} = qr/$_->{match}/
		3457	if exists $_->{match};
		3458	}
		3459	}
		3460
		3461	sub reload_facedata {
		3462	load_facedata "$DATADIR/facedata"
		3463	or die "unable to load facedata\n";
		3464	}
		3465
		3466	sub reload_archetypes {
		3467	load_resource_file "$DATADIR/archetypes"
		3468	or die "unable to load archetypes\n";
		3469	}
		3470
		3471	sub reload_treasures {
		3472	load_resource_file "$DATADIR/treasures"
		3473	or die "unable to load treasurelists\n";
		3474	}
		3475
2330	sub reload_resources {	3476	sub reload_resources {
2331	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3477	warn "reloading resource files...\n";
2332	or die "unable to load regions file\n";#d#	3478
2333	load_facedata	3479	reload_facedata;
2334	or die "unable to load facedata\n";#d#	3480	reload_archetypes;
2335	}
2336
2337	sub init {
2338	reload_resources;	3481	reload_regions;
2339	}	3482	reload_treasures;
2340		3483
2341	sub cfg_load {	3484	warn "finished reloading resource files\n";
		3485	}
		3486
		3487	sub reload_config {
		3488	warn "reloading config file...\n";
		3489
2342	open my $fh, "<:utf8", cf::confdir . "/config"	3490	open my $fh, "<:utf8", "$CONFDIR/config"
2343	or return;	3491	or return;
2344		3492
2345	local $/;	3493	local $/;
2346	*CFG = YAML::Syck::Load <$fh>;	3494	*CFG = YAML::XS::Load scalar <$fh>;
2347		3495
2348	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3496	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2349		3497
2350	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3498	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2351	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3499	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2355	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3503	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2356	and die "WARNING: m(un)lockall failed: $!\n";	3504	and die "WARNING: m(un)lockall failed: $!\n";
2357	};	3505	};
2358	warn $@ if $@;	3506	warn $@ if $@;
2359	}	3507	}
		3508
		3509	warn "finished reloading resource files\n";
		3510	}
		3511
		3512	sub pidfile() {
		3513	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3514	or die "$PIDFILE: $!";
		3515	flock $fh, &Fcntl::LOCK_EX
		3516	or die "$PIDFILE: flock: $!";
		3517	$fh
		3518	}
		3519
		3520	# make sure only one server instance is running at any one time
		3521	sub atomic {
		3522	my $fh = pidfile;
		3523
		3524	my $pid = <$fh>;
		3525	kill 9, $pid if $pid > 0;
		3526
		3527	seek $fh, 0, 0;
		3528	print $fh $$;
		3529	}
		3530
		3531	sub main_loop {
		3532	warn "EV::loop starting\n";
		3533	if (1) {
		3534	EV::loop;
		3535	}
		3536	warn "EV::loop returned\n";
		3537	goto &main_loop unless $REALLY_UNLOOP;
2360	}	3538	}
2361		3539
2362	sub main {	3540	sub main {
		3541	cf::init_globals; # initialise logging
		3542
		3543	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3544	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3545	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3546	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3547
		3548	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3549
2363	# we must not ever block the main coroutine	3550	# we must not ever block the main coroutine
2364	local $Coro::idle = sub {	3551	local $Coro::idle = sub {
2365	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3552	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2366	(async {	3553	(async {
2367	Event::one_event;	3554	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3555	EV::loop EV::LOOP_ONESHOT;
2368	})->prio (Coro::PRIO_MAX);	3556	})->prio (Coro::PRIO_MAX);
2369	};	3557	};
2370		3558
2371	cfg_load;	3559	evthread_start IO::AIO::poll_fileno;
		3560
		3561	cf::sync_job {
		3562	cf::init_experience;
		3563	cf::init_anim;
		3564	cf::init_attackmess;
		3565	cf::init_dynamic;
		3566
		3567	cf::load_settings;
		3568	cf::load_materials;
		3569
		3570	reload_resources;
		3571	reload_config;
2372	db_init;	3572	db_init;
		3573
		3574	cf::init_uuid;
		3575	cf::init_signals;
		3576	cf::init_skills;
		3577
		3578	cf::init_beforeplay;
		3579
		3580	atomic;
		3581
2373	load_extensions;	3582	load_extensions;
2374		3583
2375	$TICK_WATCHER->start;	3584	utime time, time, $RUNTIMEFILE;
2376	Event::loop;	3585
		3586	# no (long-running) fork's whatsoever before this point(!)
		3587	use POSIX ();
		3588	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3589
		3590	(pop @POST_INIT)->(0) while @POST_INIT;
		3591	};
		3592
		3593	cf::object::thawer::errors_are_fatal 0;
		3594
		3595	main_loop;
2377	}	3596	}
2378		3597
2379	#############################################################################	3598	#############################################################################
2380	# initialisation and cleanup	3599	# initialisation and cleanup
2381		3600
2382	# install some emergency cleanup handlers	3601	# install some emergency cleanup handlers
2383	BEGIN {	3602	BEGIN {
		3603	our %SIGWATCHER = ();
2384	for my $signal (qw(INT HUP TERM)) {	3604	for my $signal (qw(INT HUP TERM)) {
2385	Event->signal (	3605	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2386	reentrant => 0,
2387	data => WF_AUTOCANCEL,
2388	signal => $signal,
2389	prio => 0,
2390	cb => sub {
2391	cf::cleanup "SIG$signal";	3606	cf::cleanup "SIG$signal";
2392	},
2393	);	3607	};
		3608	}
		3609	}
		3610
		3611	sub write_runtime_sync {
		3612	my $t0 = AE::time;
		3613
		3614	# first touch the runtime file to show we are still running:
		3615	# the fsync below can take a very very long time.
		3616
		3617	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3618
		3619	my $guard = cf::lock_acquire "write_runtime";
		3620
		3621	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3622	or return;
		3623
		3624	my $value = $cf::RUNTIME + 90 + 10;
		3625	# 10 is the runtime save interval, for a monotonic clock
		3626	# 60 allows for the watchdog to kill the server.
		3627
		3628	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3629	and return;
		3630
		3631	# always fsync - this file is important
		3632	aio_fsync $fh
		3633	and return;
		3634
		3635	# touch it again to show we are up-to-date
		3636	aio_utime $fh, undef, undef;
		3637
		3638	close $fh
		3639	or return;
		3640
		3641	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3642	and return;
		3643
		3644	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3645
2394	}	3646	1
		3647	}
		3648
		3649	our $uuid_lock;
		3650	our $uuid_skip;
		3651
		3652	sub write_uuid_sync($) {
		3653	$uuid_skip ||= $_[0];
		3654
		3655	return if $uuid_lock;
		3656	local $uuid_lock = 1;
		3657
		3658	my $uuid = "$LOCALDIR/uuid";
		3659
		3660	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3661	or return;
		3662
		3663	my $value = uuid_seq uuid_cur;
		3664
		3665	unless ($value) {
		3666	warn "cowardly refusing to write zero uuid value!\n";
		3667	return;
		3668	}
		3669
		3670	my $value = uuid_str $value + $uuid_skip;
		3671	$uuid_skip = 0;
		3672
		3673	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3674	and return;
		3675
		3676	# always fsync - this file is important
		3677	aio_fsync $fh
		3678	and return;
		3679
		3680	close $fh
		3681	or return;
		3682
		3683	aio_rename "$uuid~", $uuid
		3684	and return;
		3685
		3686	warn "uuid file written ($value).\n";
		3687
		3688	1
		3689
		3690	}
		3691
		3692	sub write_uuid($$) {
		3693	my ($skip, $sync) = @_;
		3694
		3695	$sync ? write_uuid_sync $skip
		3696	: async { write_uuid_sync $skip };
2395	}	3697	}
2396		3698
2397	sub emergency_save() {	3699	sub emergency_save() {
2398	my $freeze_guard = cf::freeze_mainloop;	3700	my $freeze_guard = cf::freeze_mainloop;
2399		3701
2400	warn "enter emergency perl save\n";	3702	warn "emergency_perl_save: enter\n";
2401		3703
2402	cf::sync_job {	3704	cf::sync_job {
		3705	# this is a trade-off: we want to be very quick here, so
		3706	# save all maps without fsync, and later call a global sync
		3707	# (which in turn might be very very slow)
		3708	local $USE_FSYNC = 0;
		3709
2403	# use a peculiar iteration method to avoid tripping on perl	3710	# use a peculiar iteration method to avoid tripping on perl
2404	# refcount bugs in for. also avoids problems with players	3711	# refcount bugs in for. also avoids problems with players
2405	# and maps saved/destroyed asynchronously.	3712	# and maps saved/destroyed asynchronously.
2406	warn "begin emergency player save\n";	3713	warn "emergency_perl_save: begin player save\n";
2407	for my $login (keys %cf::PLAYER) {	3714	for my $login (keys %cf::PLAYER) {
2408	my $pl = $cf::PLAYER{$login} or next;	3715	my $pl = $cf::PLAYER{$login} or next;
2409	$pl->valid or next;	3716	$pl->valid or next;
		3717	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2410	$pl->save;	3718	$pl->save;
2411	}	3719	}
2412	warn "end emergency player save\n";	3720	warn "emergency_perl_save: end player save\n";
2413		3721
2414	warn "begin emergency map save\n";	3722	warn "emergency_perl_save: begin map save\n";
2415	for my $path (keys %cf::MAP) {	3723	for my $path (keys %cf::MAP) {
2416	my $map = $cf::MAP{$path} or next;	3724	my $map = $cf::MAP{$path} or next;
2417	$map->valid or next;	3725	$map->valid or next;
2418	$map->save;	3726	$map->save;
2419	}	3727	}
2420	warn "end emergency map save\n";	3728	warn "emergency_perl_save: end map save\n";
2421		3729
2422	warn "begin emergency database checkpoint\n";	3730	warn "emergency_perl_save: begin database checkpoint\n";
2423	BDB::db_env_txn_checkpoint $DB_ENV;	3731	BDB::db_env_txn_checkpoint $DB_ENV;
2424	warn "end emergency database checkpoint\n";	3732	warn "emergency_perl_save: end database checkpoint\n";
		3733
		3734	warn "emergency_perl_save: begin write uuid\n";
		3735	write_uuid_sync 1;
		3736	warn "emergency_perl_save: end write uuid\n";
2425	};	3737	};
2426		3738
		3739	warn "emergency_perl_save: starting sync()\n";
		3740	IO::AIO::aio_sync sub {
		3741	warn "emergency_perl_save: finished sync()\n";
		3742	};
		3743
2427	warn "leave emergency perl save\n";	3744	warn "emergency_perl_save: leave\n";
2428	}	3745	}
2429		3746
2430	sub post_cleanup {	3747	sub post_cleanup {
2431	my ($make_core) = @_;	3748	my ($make_core) = @_;
2432		3749
2433	warn Carp::longmess "post_cleanup backtrace"	3750	warn Carp::longmess "post_cleanup backtrace"
2434	if $make_core;	3751	if $make_core;
2435	}
2436		3752
		3753	my $fh = pidfile;
		3754	unlink $PIDFILE if <$fh> == $$;
		3755	}
		3756
		3757	# a safer delete_package, copied from Symbol
		3758	sub clear_package($) {
		3759	my $pkg = shift;
		3760
		3761	# expand to full symbol table name if needed
		3762	unless ($pkg =~ /^main::.*::$/) {
		3763	$pkg = "main$pkg" if $pkg =~ /^::/;
		3764	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3765	$pkg .= '::' unless $pkg =~ /::$/;
		3766	}
		3767
		3768	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3769	my $stem_symtab = *{$stem}{HASH};
		3770
		3771	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3772	or return;
		3773
		3774	# clear all symbols
		3775	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3776	for my $name (keys %$leaf_symtab) {
		3777	_gv_clear *{"$pkg$name"};
		3778	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3779	}
		3780	warn "cleared package $pkg\n";#d#
		3781	}
		3782
2437	sub reload() {	3783	sub do_reload_perl() {
2438	# can/must only be called in main	3784	# can/must only be called in main
2439	if ($Coro::current != $Coro::main) {	3785	if ($Coro::current != $Coro::main) {
2440	warn "can only reload from main coroutine";	3786	warn "can only reload from main coroutine";
2441	return;	3787	return;
2442	}	3788	}
2443		3789
		3790	return if $RELOAD++;
		3791
		3792	my $t1 = AE::time;
		3793
		3794	while ($RELOAD) {
2444	warn "reloading...";	3795	warn "reloading...";
2445		3796
2446	warn "entering sync_job";	3797	warn "entering sync_job";
2447		3798
2448	cf::sync_job {	3799	cf::sync_job {
2449	cf::write_runtime; # external watchdog should not bark	3800	cf::write_runtime_sync; # external watchdog should not bark
2450	cf::emergency_save;	3801	cf::emergency_save;
2451	cf::write_runtime; # external watchdog should not bark	3802	cf::write_runtime_sync; # external watchdog should not bark
2452		3803
2453	warn "syncing database to disk";	3804	warn "syncing database to disk";
2454	BDB::db_env_txn_checkpoint $DB_ENV;	3805	BDB::db_env_txn_checkpoint $DB_ENV;
2455		3806
2456	# if anything goes wrong in here, we should simply crash as we already saved	3807	# if anything goes wrong in here, we should simply crash as we already saved
2457		3808
2458	warn "cancelling all WF_AUTOCANCEL watchers";
2459	for (Event::all_watchers) {
2460	$_->cancel if $_->data & WF_AUTOCANCEL;
2461	}
2462
2463	warn "flushing outstanding aio requests";	3809	warn "flushing outstanding aio requests";
2464	for (;;) {
2465	BDB::flush;
2466	IO::AIO::flush;
2467	Coro::cede;
2468	last unless IO::AIO::nreqs || BDB::nreqs;	3810	while (IO::AIO::nreqs || BDB::nreqs) {
2469	warn "iterate...";	3811	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2470	}
2471
2472	++$RELOAD;
2473
2474	warn "cancelling all extension coros";
2475	$_->cancel for values %EXT_CORO;
2476	%EXT_CORO = ();
2477
2478	warn "removing commands";
2479	%COMMAND = ();
2480
2481	warn "removing ext commands";
2482	%EXTCMD = ();
2483
2484	warn "unloading/nuking all extensions";
2485	for my $pkg (@EXTS) {
2486	warn "... unloading $pkg";
2487
2488	if (my $cb = $pkg->can ("unload")) {
2489	eval {
2490	$cb->($pkg);
2491	1
2492	} or warn "$pkg unloaded, but with errors: $@";
2493	}	3812	}
2494		3813
2495	warn "... nuking $pkg";	3814	warn "cancelling all extension coros";
2496	Symbol::delete_package $pkg;	3815	$_->cancel for values %EXT_CORO;
2497	}	3816	%EXT_CORO = ();
2498		3817
2499	warn "unloading all perl modules loaded from $LIBDIR";	3818	warn "removing commands";
2500	while (my ($k, $v) = each %INC) {	3819	%COMMAND = ();
2501	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2502		3820
		3821	warn "removing ext/exti commands";
		3822	%EXTCMD = ();
		3823	%EXTICMD = ();
		3824
		3825	warn "unloading/nuking all extensions";
		3826	for my $pkg (@EXTS) {
2503	warn "... unloading $k";	3827	warn "... unloading $pkg";
2504	delete $INC{$k};
2505		3828
2506	$k =~ s/\.pm$//;
2507	$k =~ s/\//::/g;
2508
2509	if (my $cb = $k->can ("unload_module")) {	3829	if (my $cb = $pkg->can ("unload")) {
		3830	eval {
2510	$cb->();	3831	$cb->($pkg);
		3832	1
		3833	} or warn "$pkg unloaded, but with errors: $@";
		3834	}
		3835
		3836	warn "... clearing $pkg";
		3837	clear_package $pkg;
2511	}	3838	}
2512		3839
2513	Symbol::delete_package $k;	3840	warn "unloading all perl modules loaded from $LIBDIR";
		3841	while (my ($k, $v) = each %INC) {
		3842	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3843
		3844	warn "... unloading $k";
		3845	delete $INC{$k};
		3846
		3847	$k =~ s/\.pm$//;
		3848	$k =~ s/\//::/g;
		3849
		3850	if (my $cb = $k->can ("unload_module")) {
		3851	$cb->();
		3852	}
		3853
		3854	clear_package $k;
2514	}	3855	}
2515		3856
2516	warn "getting rid of safe::, as good as possible";	3857	warn "getting rid of safe::, as good as possible";
2517	Symbol::delete_package "safe::$_"	3858	clear_package "safe::$_"
2518	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3859	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2519		3860
2520	warn "unloading cf.pm \"a bit\"";	3861	warn "unloading cf.pm \"a bit\"";
2521	delete $INC{"cf.pm"};	3862	delete $INC{"cf.pm"};
		3863	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2522		3864
2523	# don't, removes xs symbols, too,	3865	# don't, removes xs symbols, too,
2524	# and global variables created in xs	3866	# and global variables created in xs
2525	#Symbol::delete_package __PACKAGE__;	3867	#clear_package __PACKAGE__;
2526		3868
2527	warn "unload completed, starting to reload now";	3869	warn "unload completed, starting to reload now";
2528		3870
2529	warn "reloading cf.pm";	3871	warn "reloading cf.pm";
2530	require cf;	3872	require cf;
2531	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3873	cf::_connect_to_perl_1;
2532		3874
2533	warn "loading config and database again";	3875	warn "loading config and database again";
2534	cf::cfg_load;	3876	cf::reload_config;
2535		3877
2536	warn "loading extensions";	3878	warn "loading extensions";
2537	cf::load_extensions;	3879	cf::load_extensions;
2538		3880
		3881	if ($REATTACH_ON_RELOAD) {
2539	warn "reattaching attachments to objects/players";	3882	warn "reattaching attachments to objects/players";
2540	_global_reattach; # objects, sockets	3883	_global_reattach; # objects, sockets
2541	warn "reattaching attachments to maps";	3884	warn "reattaching attachments to maps";
2542	reattach $_ for values %MAP;	3885	reattach $_ for values %MAP;
2543	warn "reattaching attachments to players";	3886	warn "reattaching attachments to players";
2544	reattach $_ for values %PLAYER;	3887	reattach $_ for values %PLAYER;
		3888	}
2545		3889
2546	warn "loading reloadable resources";	3890	warn "running post_init jobs";
2547	reload_resources;	3891	(pop @POST_INIT)->(1) while @POST_INIT;
2548		3892
2549	warn "leaving sync_job";	3893	warn "leaving sync_job";
2550		3894
2551	1	3895	1
2552	} or do {	3896	} or do {
2553	warn $@;	3897	warn $@;
2554	warn "error while reloading, exiting.";	3898	cf::cleanup "error while reloading, exiting.";
2555	exit 1;	3899	};
		3900
		3901	warn "reloaded";
		3902	--$RELOAD;
		3903	}
		3904
		3905	$t1 = AE::time - $t1;
		3906	warn "reload completed in ${t1}s\n";
		3907	};
		3908
		3909	our $RELOAD_WATCHER; # used only during reload
		3910
		3911	sub reload_perl() {
		3912	# doing reload synchronously and two reloads happen back-to-back,
		3913	# coro crashes during coro_state_free->destroy here.
		3914
		3915	$RELOAD_WATCHER ||= cf::async {
		3916	Coro::AIO::aio_wait cache_extensions;
		3917
		3918	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3919	do_reload_perl;
		3920	undef $RELOAD_WATCHER;
		3921	};
2556	};	3922	};
2557		3923	}
2558	warn "reloaded";
2559	};
2560
2561	our $RELOAD_WATCHER; # used only during reload
2562		3924
2563	register_command "reload" => sub {	3925	register_command "reload" => sub {
2564	my ($who, $arg) = @_;	3926	my ($who, $arg) = @_;
2565		3927
2566	if ($who->flag (FLAG_WIZ)) {	3928	if ($who->flag (FLAG_WIZ)) {
2567	$who->message ("reloading server.");	3929	$who->message ("reloading server.");
2568		3930	async {
2569	# doing reload synchronously and two reloads happen back-to-back,	3931	$Coro::current->{desc} = "perl_reload";
2570	# coro crashes during coro_state_free->destroy here.
2571
2572	$RELOAD_WATCHER ||= Event->timer (
2573	reentrant => 0,
2574	after => 0,
2575	data => WF_AUTOCANCEL,
2576	cb => sub {
2577	reload;	3932	reload_perl;
2578	undef $RELOAD_WATCHER;
2579	},
2580	);	3933	};
2581	}	3934	}
2582	};	3935	};
2583		3936
2584	unshift @INC, $LIBDIR;	3937	unshift @INC, $LIBDIR;
2585		3938
2586	my $bug_warning = 0;	3939	my $bug_warning = 0;
2587		3940
2588	$TICK_WATCHER = Event->timer (	3941	our @WAIT_FOR_TICK;
2589	reentrant => 0,	3942	our @WAIT_FOR_TICK_BEGIN;
2590	parked => 1,	3943
2591	prio => 0,	3944	sub wait_for_tick {
2592	at => $NEXT_TICK || $TICK,	3945	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2593	data => WF_AUTOCANCEL,	3946
2594	cb => sub {	3947	my $signal = new Coro::Signal;
		3948	push @WAIT_FOR_TICK, $signal;
		3949	$signal->wait;
		3950	}
		3951
		3952	sub wait_for_tick_begin {
		3953	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3954
		3955	my $signal = new Coro::Signal;
		3956	push @WAIT_FOR_TICK_BEGIN, $signal;
		3957	$signal->wait;
		3958	}
		3959
		3960	sub tick {
2595	if ($Coro::current != $Coro::main) {	3961	if ($Coro::current != $Coro::main) {
2596	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3962	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2597	unless ++$bug_warning > 10;	3963	unless ++$bug_warning > 10;
2598	return;	3964	return;
2599	}	3965	}
2600		3966
2601	$NOW = Event::time;
2602
2603	cf::server_tick; # one server iteration	3967	cf::server_tick; # one server iteration
2604	$RUNTIME += $TICK;
2605	$NEXT_TICK += $TICK;
2606		3968
		3969	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		3970
2607	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3971	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2608	$NEXT_RUNTIME_WRITE = $NOW + 10;	3972	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2609	Coro::async_pool {	3973	Coro::async_pool {
		3974	$Coro::current->{desc} = "runtime saver";
2610	write_runtime	3975	write_runtime_sync
2611	or warn "ERROR: unable to write runtime file: $!";	3976	or warn "ERROR: unable to write runtime file: $!";
2612	};
2613	}	3977	};
2614
2615	$WAIT_FOR_TICK->broadcast;
2616	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2617
2618	# my $AFTER = Event::time;
2619	# warn $AFTER - $NOW;#d#
2620
2621	# if we are delayed by four ticks or more, skip them all
2622	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2623
2624	$TICK_WATCHER->at ($NEXT_TICK);
2625	$TICK_WATCHER->start;
2626	},	3978	}
2627	);	3979
		3980	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3981	$sig->send;
		3982	}
		3983	while (my $sig = shift @WAIT_FOR_TICK) {
		3984	$sig->send;
		3985	}
		3986
		3987	$LOAD = ($NOW - $TICK_START) / $TICK;
		3988	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3989
		3990	if (0) {
		3991	if ($NEXT_TICK) {
		3992	my $jitter = $TICK_START - $NEXT_TICK;
		3993	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3994	warn "jitter $JITTER\n";#d#
		3995	}
		3996	}
		3997	}
2628		3998
2629	{	3999	{
2630	BDB::max_poll_time $TICK * 0.1;	4000	# configure BDB
2631	$BDB_POLL_WATCHER = Event->io (	4001
2632	reentrant => 0,
2633	fd => BDB::poll_fileno,
2634	poll => 'r',
2635	prio => 0,
2636	data => WF_AUTOCANCEL,
2637	cb => \&BDB::poll_cb,
2638	);
2639	BDB::min_parallel 8;	4002	BDB::min_parallel 16;
2640		4003	BDB::max_poll_reqs $TICK * 0.1;
2641	BDB::set_sync_prepare {	4004	$AnyEvent::BDB::WATCHER->priority (1);
2642	my $status;
2643	my $current = $Coro::current;
2644	(
2645	sub {
2646	$status = $!;
2647	$current->ready; undef $current;
2648	},
2649	sub {
2650	Coro::schedule while defined $current;
2651	$! = $status;
2652	},
2653	)
2654	};
2655		4005
2656	unless ($DB_ENV) {	4006	unless ($DB_ENV) {
2657	$DB_ENV = BDB::db_env_create;	4007	$DB_ENV = BDB::db_env_create;
		4008	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4009	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4010	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4011	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4012	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2658		4013
2659	cf::sync_job {	4014	cf::sync_job {
2660	eval {	4015	eval {
2661	BDB::db_env_open	4016	BDB::db_env_open
2662	$DB_ENV,	4017	$DB_ENV,
2663	$BDB_ENV_DIR,	4018	$BDBDIR,
2664	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4019	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2665	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4020	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2666	0666;	4021	0666;
2667		4022
2668	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4023	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2669
2670	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2671	$DB_ENV->set_lk_detect;
2672	};	4024	};
2673		4025
2674	cf::cleanup "db_env_open(db): $@" if $@;	4026	cf::cleanup "db_env_open(db): $@" if $@;
2675	};	4027	};
2676	}	4028	}
		4029
		4030	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4031	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4032	};
		4033	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4034	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4035	};
		4036	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4037	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4038	};
2677	}	4039	}
2678		4040
2679	{	4041	{
		4042	# configure IO::AIO
		4043
2680	IO::AIO::min_parallel 8;	4044	IO::AIO::min_parallel 8;
2681
2682	undef $Coro::AIO::WATCHER;
2683	IO::AIO::max_poll_time $TICK * 0.1;	4045	IO::AIO::max_poll_time $TICK * 0.1;
2684	$AIO_POLL_WATCHER = Event->io (	4046	undef $AnyEvent::AIO::WATCHER;
2685	reentrant => 0,
2686	data => WF_AUTOCANCEL,
2687	fd => IO::AIO::poll_fileno,
2688	poll => 'r',
2689	prio => 6,
2690	cb => \&IO::AIO::poll_cb,
2691	);
2692	}	4047	}
		4048
		4049	my $_log_backtrace;
		4050
		4051	sub _log_backtrace {
		4052	my ($msg, @addr) = @_;
		4053
		4054	$msg =~ s/\n//;
		4055
		4056	# limit the # of concurrent backtraces
		4057	if ($_log_backtrace < 2) {
		4058	++$_log_backtrace;
		4059	my $perl_bt = Carp::longmess $msg;
		4060	async {
		4061	$Coro::current->{desc} = "abt $msg";
		4062
		4063	my @bt = fork_call {
		4064	@addr = map { sprintf "%x", $_ } @addr;
		4065	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4066	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4067	or die "addr2line: $!";
		4068
		4069	my @funcs;
		4070	my @res = <$fh>;
		4071	chomp for @res;
		4072	while (@res) {
		4073	my ($func, $line) = splice @res, 0, 2, ();
		4074	push @funcs, "[$func] $line";
		4075	}
		4076
		4077	@funcs
		4078	};
		4079
		4080	LOG llevInfo, "[ABT] $perl_bt\n";
		4081	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4082	LOG llevInfo, "[ABT] $_\n" for @bt;
		4083	--$_log_backtrace;
		4084	};
		4085	} else {
		4086	LOG llevInfo, "[ABT] $msg\n";
		4087	LOG llevInfo, "[ABT] [suppressed]\n";
		4088	}
		4089	}
		4090
		4091	# load additional modules
		4092	require "cf/$_.pm" for @EXTRA_MODULES;
		4093	cf::_connect_to_perl_2;
2693		4094
2694	END { cf::emergency_save }	4095	END { cf::emergency_save }
2695		4096
2696	1	4097	1
2697		4098

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