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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.220 by root, Sat Feb 17 23:54:35 2007 UTC vs.
Revision 1.520 by root, Fri Apr 16 02:37:50 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.5 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
20	use BDB ();	56	use BDB ();
21	use Data::Dumper;	57	use Data::Dumper;
22	use Digest::MD5;
23	use Fcntl;	58	use Fcntl;
24	use IO::AIO 2.32 ();
25	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
26	use Time::HiRes;	61	use Time::HiRes;
27	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
28		64
		65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		77
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		82
40	our %COMMAND = ();	83	our %COMMAND = ();
41	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
42		85
43	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
47		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
48	our @EVENT;	93	our @EVENT;
49	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
50		96
51	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	98	our $DATADIR = datadir;
53	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $OUTPUT_RATE_MIN = 4000;
		114	our $OUTPUT_RATE_MAX = 100000;
		115
		116	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	118	our $NEXT_TICK;
56	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off	119	our $USE_FSYNC = 1; # use fsync to write maps - default on
58		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
59	our $BDB_POLL_WATCHER;	123	our $BDB_TRICKLE_WATCHER;
60	our $DB_ENV;	124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
61		127
62	our %CFG;	128	our %CFG;
63		129
64	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
66		133
67	our %PLAYER; # all users	134	our (%PLAYER, %PLAYER_LOADING); # all users
68	our %MAP; # all maps	135	our (%MAP, %MAP_LOADING ); # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	136	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		137
76	# used to convert map paths into valid unix filenames by replacing / by ∕	138	# used to convert map paths into valid unix filenames by replacing / by ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		140
		141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
		144	our $TICK_START; # for load detecting purposes
		145
		146	our @POST_INIT;
		147
		148	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		149	our $REALLY_UNLOOP; # never set to true, please :)
		150
79	binmode STDOUT;	151	binmode STDOUT;
80	binmode STDERR;	152	binmode STDERR;
81		153
82	# read virtual server time, if available	154	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
84	open my $fh, "<", cf::localdir . "/runtime"	156	open my $fh, "<", $RUNTIMEFILE
85	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
86	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
87	}	159	}
88		160
89	mkdir cf::localdir;	161	eval "sub TICK() { $TICK } 1" or die;
90	mkdir cf::localdir . "/" . cf::playerdir;	162
91	mkdir cf::localdir . "/" . cf::tmpdir;	163	mkdir $_
92	mkdir cf::localdir . "/" . cf::uniquedir;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		165
96	our $EMERGENCY_POSITION;	166	our $EMERGENCY_POSITION;
97		167
98	sub cf::map::normalise;	168	sub cf::map::normalise;
		169
		170	#############################################################################
		171
		172	%REFLECT = ();
		173	for (@REFLECT) {
		174	my $reflect = JSON::XS::decode_json $_;
		175	$REFLECT{$reflect->{class}} = $reflect;
		176	}
		177
		178	# this is decidedly evil
		179	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
99		180
100	#############################################################################	181	#############################################################################
101		182
102	=head2 GLOBAL VARIABLES	183	=head2 GLOBAL VARIABLES
103		184
…		…
110	=item $cf::RUNTIME	191	=item $cf::RUNTIME
111		192
112	The time this server has run, starts at 0 and is increased by $cf::TICK on	193	The time this server has run, starts at 0 and is increased by $cf::TICK on
113	every server tick.	194	every server tick.
114		195
115	=item $cf::LIBDIR	196	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		197	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		198	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
116		199
117	The perl library directory, where extensions and cf-specific modules can	200	Various directories - "/etc", read-only install directory, perl-library
118	be found. It will be added to C<@INC> automatically.	201	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		202	unique-items directory, player file directory, random maps directory and
		203	database environment.
119		204
120	=item $cf::NOW	205	=item $cf::NOW
121		206
122	The time of the last (current) server tick.	207	The time of the last (current) server tick.
123		208
124	=item $cf::TICK	209	=item $cf::TICK
125		210
126	The interval between server ticks, in seconds.	211	The interval between server ticks, in seconds.
127		212
		213	=item $cf::LOADAVG
		214
		215	The current CPU load on the server (alpha-smoothed), as a value between 0
		216	(none) and 1 (overloaded), indicating how much time is spent on processing
		217	objects per tick. Healthy values are < 0.5.
		218
		219	=item $cf::LOAD
		220
		221	The raw value load value from the last tick.
		222
128	=item %cf::CFG	223	=item %cf::CFG
129		224
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	225	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	226	from wherever your confdir points to.
132		227
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	228	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		229
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	230	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	231	returns directly I<after> the tick processing (and consequently, can only wake one process
137	processing has been done. Call C<< ->wait >> on them to maximise the	232	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138	window of cpu time available, or simply to synchronise to the server tick.	233
		234	=item @cf::INVOKE_RESULTS
		235
		236	This array contains the results of the last C<invoke ()> call. When
		237	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		238	that call.
		239
		240	=item %cf::REFLECT
		241
		242	Contains, for each (C++) class name, a hash reference with information
		243	about object members (methods, scalars, arrays and flags) and other
		244	metadata, which is useful for introspection.
139		245
140	=back	246	=back
141		247
142	=cut	248	=cut
143		249
144	BEGIN {	250	$Coro::State::WARNHOOK = sub {
145	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	251	my $msg = join "", @_;
147	utf8::encode $msg;
148		252
149	$msg .= "\n"	253	$msg .= "\n"
150	unless $msg =~ /\n$/;	254	unless $msg =~ /\n$/;
151		255
		256	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		257
152	LOG llevError, $msg;	258	LOG llevError, $msg;
153	};	259	};
154	}	260
		261	$Coro::State::DIEHOOK = sub {
		262	return unless $^S eq 0; # "eq", not "=="
		263
		264	warn Carp::longmess $_[0];
		265
		266	if ($Coro::current == $Coro::main) {#d#
		267	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		268	return;#d#
		269	}#d#
		270
		271	# kill coroutine otherwise
		272	Coro::terminate
		273	};
155		274
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	275	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	276	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	277	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	278	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	279	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		280	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
161	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	281	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
162		282
163	# we bless all objects into (empty) derived classes to force a method lookup	283	# we bless all objects into (empty) derived classes to force a method lookup
164	# within the Safe compartment.	284	# within the Safe compartment.
165	for my $pkg (qw(	285	for my $pkg (qw(
166	cf::global cf::attachable	286	cf::global cf::attachable
167	cf::object cf::object::player	287	cf::object cf::object::player
168	cf::client cf::player	288	cf::client cf::player
169	cf::arch cf::living	289	cf::arch cf::living
		290	cf::map cf::mapspace
170	cf::map cf::party cf::region	291	cf::party cf::region
171	)) {	292	)) {
172	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	293	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	294	}
175		295
176	$Event::DIED = sub {	296	$EV::DIED = sub {
177	warn "error in event callback: @_";	297	Carp::cluck "error in event callback: @_";
178	};	298	};
		299
		300	#############################################################################
179		301
180	=head2 UTILITY FUNCTIONS	302	=head2 UTILITY FUNCTIONS
181		303
182	=over 4	304	=over 4
183		305
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	324	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	325	$d
204	} || "[unable to dump $_[0]: '$@']";	326	} || "[unable to dump $_[0]: '$@']";
205	}	327	}
206		328
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	329	=item $ref = cf::decode_json $json
210		330
211	Converts a JSON string into the corresponding perl data structure.	331	Converts a JSON string into the corresponding perl data structure.
212		332
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	333	=item $json = cf::encode_json $ref
221		334
222	Converts a perl data structure into its JSON representation.	335	Converts a perl data structure into its JSON representation.
223		336
224	=cut	337	=cut
225		338
226	sub to_json($) {	339	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	340
228	JSON::Syck::Dump $_[0]	341	sub encode_json($) { $json_coder->encode ($_[0]) }
		342	sub decode_json($) { $json_coder->decode ($_[0]) }
		343
		344	=item cf::post_init { BLOCK }
		345
		346	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		347	but I<before> the server starts ticking again.
		348
		349	The cdoeblock will have a single boolean argument to indicate whether this
		350	is a reload or not.
		351
		352	=cut
		353
		354	sub post_init(&) {
		355	push @POST_INIT, shift;
229	}	356	}
230		357
231	=item cf::lock_wait $string	358	=item cf::lock_wait $string
232		359
233	Wait until the given lock is available. See cf::lock_acquire.	360	Wait until the given lock is available. See cf::lock_acquire.
234		361
235	=item my $lock = cf::lock_acquire $string	362	=item my $lock = cf::lock_acquire $string
236		363
237	Wait until the given lock is available and then acquires it and returns	364	Wait until the given lock is available and then acquires it and returns
238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	365	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
239	for example when the coroutine gets canceled), the lock is automatically	366	for example when the coroutine gets canceled), the lock is automatically
240	returned.	367	returned.
241		368
		369	Locks are *not* recursive, locking from the same coro twice results in a
		370	deadlocked coro.
		371
242	Lock names should begin with a unique identifier (for example, cf::map::find	372	Lock names should begin with a unique identifier (for example, cf::map::find
243	uses map_find and cf::map::load uses map_load).	373	uses map_find and cf::map::load uses map_load).
244		374
245	=cut	375	=item $locked = cf::lock_active $string
246		376
247	our %LOCK;	377	Return true if the lock is currently active, i.e. somebody has locked it.
		378
		379	=cut
		380
		381	our $LOCKS = new Coro::SemaphoreSet;
248		382
249	sub lock_wait($) {	383	sub lock_wait($) {
250	my ($key) = @_;	384	$LOCKS->wait ($_[0]);
251
252	# wait for lock, if any
253	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;
256	}
257	}	385	}
258		386
259	sub lock_acquire($) {	387	sub lock_acquire($) {
260	my ($key) = @_;	388	$LOCKS->guard ($_[0])
		389	}
261		390
262	# wait, to be sure we are not locked	391	sub lock_active($) {
263	lock_wait $key;	392	$LOCKS->count ($_[0]) < 1
264
265	$LOCK{$key} = [];
266
267	Coro::guard {
268	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };
270	}
271	}	393	}
272		394
273	sub freeze_mainloop {	395	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	396	tick_inhibit_inc;
275		397
276	my $guard = Coro::guard {	398	&Guard::guard (\&tick_inhibit_dec);
277	$TICK_WATCHER->start;	399	}
		400
		401	=item cf::periodic $interval, $cb
		402
		403	Like EV::periodic, but randomly selects a starting point so that the actions
		404	get spread over time.
		405
		406	=cut
		407
		408	sub periodic($$) {
		409	my ($interval, $cb) = @_;
		410
		411	my $start = rand List::Util::min 180, $interval;
		412
		413	EV::periodic $start, $interval, 0, $cb
		414	}
		415
		416	=item cf::get_slot $time[, $priority[, $name]]
		417
		418	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		419	This call blocks and returns only when you have at least C<$time> seconds
		420	of cpu time till the next tick. The slot is only valid till the next cede.
		421
		422	The optional C<$name> can be used to identify the job to run. It might be
		423	used for statistical purposes and should identify the same time-class.
		424
		425	Useful for short background jobs.
		426
		427	=cut
		428
		429	our @SLOT_QUEUE;
		430	our $SLOT_QUEUE;
		431	our $SLOT_DECAY = 0.9;
		432
		433	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		434	$SLOT_QUEUE = Coro::async {
		435	$Coro::current->desc ("timeslot manager");
		436
		437	my $signal = new Coro::Signal;
		438	my $busy;
		439
		440	while () {
		441	next_job:
		442
		443	my $avail = cf::till_tick;
		444
		445	for (0 .. $#SLOT_QUEUE) {
		446	if ($SLOT_QUEUE[$_][0] <= $avail) {
		447	$busy = 0;
		448	my $job = splice @SLOT_QUEUE, $_, 1, ();
		449	$job->[2]->send;
		450	Coro::cede;
		451	goto next_job;
		452	} else {
		453	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		454	}
		455	}
		456
		457	if (@SLOT_QUEUE) {
		458	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		459	push @cf::WAIT_FOR_TICK, $signal;
		460	$signal->wait;
		461	} else {
		462	$busy = 0;
		463	Coro::schedule;
		464	}
278	};	465	}
279	$TICK_WATCHER->stop;	466	};
280	$guard	467
		468	sub get_slot($;$$) {
		469	return if tick_inhibit || $Coro::current == $Coro::main;
		470
		471	my ($time, $pri, $name) = @_;
		472
		473	$time = clamp $time, 0.01, $TICK * .6;
		474
		475	my $sig = new Coro::Signal;
		476
		477	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		478	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		479	$SLOT_QUEUE->ready;
		480	$sig->wait;
281	}	481	}
282		482
283	=item cf::async { BLOCK }	483	=item cf::async { BLOCK }
284		484
285	Currently the same as Coro::async_pool, meaning you cannot use	485	Currently the same as Coro::async_pool, meaning you cannot use
…		…
290		490
291	BEGIN { *async = \&Coro::async_pool }	491	BEGIN { *async = \&Coro::async_pool }
292		492
293	=item cf::sync_job { BLOCK }	493	=item cf::sync_job { BLOCK }
294		494
295	The design of crossfire+ requires that the main coro ($Coro::main) is	495	The design of Deliantra requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	496	is always able to handle events or runnable, as Deliantra is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	497	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		498	acceptable.
298		499
299	If it must be done, put the blocking parts into C<sync_job>. This will run	500	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	501	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	502	server will be frozen during this time, so the block should either finish
302	fast or be very important.	503	fast or be very important.
…		…
305		506
306	sub sync_job(&) {	507	sub sync_job(&) {
307	my ($job) = @_;	508	my ($job) = @_;
308		509
309	if ($Coro::current == $Coro::main) {	510	if ($Coro::current == $Coro::main) {
		511	my $time = AE::time;
		512
310	# this is the main coro, too bad, we have to block	513	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	514	# till the operation succeeds, freezing the server :/
312		515
313	# TODO: use suspend/resume instead	516	LOG llevError, Carp::longmess "sync job";#d#
314	# (but this is cancel-safe)	517
315	my $freeze_guard = freeze_mainloop;	518	my $freeze_guard = freeze_mainloop;
316		519
317	my $busy = 1;	520	my $busy = 1;
318	my @res;	521	my @res;
319		522
320	(async {	523	(async {
		524	$Coro::current->desc ("sync job coro");
321	@res = eval { $job->() };	525	@res = eval { $job->() };
322	warn $@ if $@;	526	warn $@ if $@;
323	undef $busy;	527	undef $busy;
324	})->prio (Coro::PRIO_MAX);	528	})->prio (Coro::PRIO_MAX);
325		529
326	while ($busy) {	530	while ($busy) {
327	Coro::cede or Event::one_event;	531	if (Coro::nready) {
		532	Coro::cede_notself;
		533	} else {
		534	EV::loop EV::LOOP_ONESHOT;
328	}	535	}
		536	}
		537
		538	my $time = AE::time - $time;
		539
		540	$TICK_START += $time; # do not account sync jobs to server load
329		541
330	wantarray ? @res : $res[0]	542	wantarray ? @res : $res[0]
331	} else {	543	} else {
332	# we are in another coroutine, how wonderful, everything just works	544	# we are in another coroutine, how wonderful, everything just works
333		545
…		…
353	$EXT_CORO{$coro+0} = $coro;	565	$EXT_CORO{$coro+0} = $coro;
354		566
355	$coro	567	$coro
356	}	568	}
357		569
358	sub write_runtime {	570	=item fork_call { }, $args
359	my $guard = cf::lock_acquire "write_runtime";
360		571
361	my $runtime = cf::localdir . "/runtime";	572	Executes the given code block with the given arguments in a seperate
		573	process, returning the results. Everything must be serialisable with
		574	Coro::Storable. May, of course, block. Note that the executed sub may
		575	never block itself or use any form of event handling.
362		576
363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	577	=cut
364	or return;
365		578
366	my $value = $cf::RUNTIME + 90 + 10;	579	sub fork_call(&@) {
367	# 10 is the runtime save interval, for a monotonic clock	580	my ($cb, @args) = @_;
368	# 60 allows for the watchdog to kill the server.
369		581
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0	582	# we seemingly have to make a local copy of the whole thing,
371	and return;	583	# otherwise perl prematurely frees the stuff :/
		584	# TODO: investigate and fix (likely this will be rather laborious)
372		585
373	# always fsync - this file is important	586	my @res = Coro::Util::fork_eval {
374	aio_fsync $fh	587	reset_signals;
375	and return;	588	&$cb
		589	}, @args;
376		590
377	close $fh	591	wantarray ? @res : $res[-1]
378	or return;	592	}
379		593
380	aio_rename "$runtime~", $runtime	594	sub objinfo {
381	and return;
382
383	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"
		757	}
		758
		759	=item cf::datalog type => key => value, ...
		760
		761	Log a datalog packet of the given type with the given key-value pairs.
		762
		763	=cut
		764
		765	sub datalog($@) {
		766	my ($type, %kv) = @_;
		767	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384	}	768	}
385		769
386	=back	770	=back
387		771
388	=cut	772	=cut
389		773
390	#############################################################################	774	#############################################################################
391		775
392	=head2 ATTACHABLE OBJECTS	776	=head2 ATTACHABLE OBJECTS
393		777
394	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
395	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")
396	to it. All such attachable objects support the following methods.	780	to it. All such attachable objects support the following methods.
397		781
398	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>
399	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
400	crossfire+).	784	Deliantra).
401		785
402	=over 4	786	=over 4
403		787
404	=item $attachable->attach ($attachment, key => $value...)	788	=item $attachable->attach ($attachment, key => $value...)
405		789
…		…
449	=item cf::CLASS::attachment $name, ...	833	=item cf::CLASS::attachment $name, ...
450		834
451	Register an attachment by C<$name> through which attachable objects of the	835	Register an attachment by C<$name> through which attachable objects of the
452	given CLASS can refer to this attachment.	836	given CLASS can refer to this attachment.
453		837
454	Some classes such as crossfire maps and objects can specify attachments	838	Some classes such as deliantra maps and objects can specify attachments
455	that are attached at load/instantiate time, thus the need for a name.	839	that are attached at load/instantiate time, thus the need for a name.
456		840
457	These calls expect any number of the following handler/hook descriptions:	841	These calls expect any number of the following handler/hook descriptions:
458		842
459	=over 4	843	=over 4
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	952	$registry = $CB_TYPE[$object_type] ||= [];
569		953
570	} elsif ($type eq "subtype") {	954	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	955	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	956	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	957	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		958
575	} elsif ($type eq "package") {	959	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	960	my $pkg = shift @arg;
577		961
578	while (my ($name, $id) = each %cb_id) {	962	while (my ($name, $id) = each %cb_id) {
…		…
607	_attach $registry, $klass, @attach;	991	_attach $registry, $klass, @attach;
608	}	992	}
609		993
610	$obj->{$name} = \%arg;	994	$obj->{$name} = \%arg;
611	} else {	995	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	996	warn "object uses attachment '$name' which is not available, postponing.\n";
613	}	997	}
614		998
615	$obj->{_attachment}{$name} = undef;	999	$obj->{_attachment}{$name} = undef;
616	}	1000	}
617		1001
…		…
619	if (ref $_[0]) {	1003	if (ref $_[0]) {
620	_object_attach @_;	1004	_object_attach @_;
621	} else {	1005	} else {
622	_attach shift->_attach_registry, @_;	1006	_attach shift->_attach_registry, @_;
623	}	1007	}
		1008	_recalc_want;
624	};	1009	};
625		1010
626	# all those should be optimised	1011	# all those should be optimised
627	sub cf::attachable::detach {	1012	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	1013	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	1016	delete $obj->{_attachment}{$name};
632	reattach ($obj);	1017	reattach ($obj);
633	} else {	1018	} else {
634	Carp::croak "cannot, currently, detach class attachments";	1019	Carp::croak "cannot, currently, detach class attachments";
635	}	1020	}
		1021	_recalc_want;
636	};	1022	};
637		1023
638	sub cf::attachable::attached {	1024	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	1025	my ($obj, $name) = @_;
640		1026
…		…
655	";	1041	";
656	die if $@;	1042	die if $@;
657	}	1043	}
658		1044
659	our $override;	1045	our $override;
660	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?
661		1047
662	sub override {	1048	sub override {
663	$override = 1;	1049	$override = 1;
664	@invoke_results = ();	1050	@INVOKE_RESULTS = (@_);
665	}	1051	}
666		1052
667	sub do_invoke {	1053	sub do_invoke {
668	my $event = shift;	1054	my $event = shift;
669	my $callbacks = shift;	1055	my $callbacks = shift;
670		1056
671	@invoke_results = ();	1057	@INVOKE_RESULTS = ();
672		1058
673	local $override;	1059	local $override;
674		1060
675	for (@$callbacks) {	1061	for (@$callbacks) {
676	eval { &{$_->[1]} };	1062	eval { &{$_->[1]} };
…		…
685	}	1071	}
686		1072
687	0	1073	0
688	}	1074	}
689		1075
690	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1076	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
691		1077
692	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1078	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
693		1079
694	Generate an object-specific event with the given arguments.	1080	Generate an object-specific event with the given arguments.
695		1081
696	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
697	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
698	results (if you must, access C<@cf::invoke_results> directly).	1084	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
699		1085
700	=back	1086	=back
701		1087
702	=cut	1088	=cut
703		1089
704	#############################################################################	1090	#############################################################################
705	# 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, $ob2
		1133	}
706		1134
707	sub reattach {	1135	sub reattach {
708	# basically do the same as instantiate, without calling instantiate	1136	# basically do the same as instantiate, without calling instantiate
709	my ($obj) = @_;	1137	my ($obj) = @_;
710		1138
		1139	# no longer needed after getting rid of delete_package?
711	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
712		1141
713	my $registry = $obj->registry;	1142	my $registry = $obj->registry;
714		1143
715	@$registry = ();	1144	@$registry = ();
716		1145
…		…
731	cf::attachable->attach (	1160	cf::attachable->attach (
732	prio => -1000000,	1161	prio => -1000000,
733	on_instantiate => sub {	1162	on_instantiate => sub {
734	my ($obj, $data) = @_;	1163	my ($obj, $data) = @_;
735		1164
736	$data = from_json $data;	1165	$data = decode_json $data;
737		1166
738	for (@$data) {	1167	for (@$data) {
739	my ($name, $args) = @$_;	1168	my ($name, $args) = @$_;
740		1169
741	$obj->attach ($name, %{$args || {} });	1170	$obj->attach ($name, %{$args || {} });
…		…
757	sub object_freezer_save {	1186	sub object_freezer_save {
758	my ($filename, $rdata, $objs) = @_;	1187	my ($filename, $rdata, $objs) = @_;
759		1188
760	sync_job {	1189	sync_job {
761	if (length $$rdata) {	1190	if (length $$rdata) {
		1191	utf8::decode (my $decname = $filename);
762	warn sprintf "saving %s (%d,%d)\n",	1192	warn sprintf "saving %s (%d,%d)\n",
763	$filename, length $$rdata, scalar @$objs;	1193	$decname, length $$rdata, scalar @$objs;
764		1194
765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1195	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
766	chmod SAVE_MODE, $fh;	1196	aio_chmod $fh, SAVE_MODE;
767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1197	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
768	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	}
769	close $fh;	1202	aio_close $fh;
770		1203
771	if (@$objs) {	1204	if (@$objs) {
772	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) {
773	chmod SAVE_MODE, $fh;	1206	aio_chmod $fh, SAVE_MODE;
774	my $data = Storable::nfreeze { version => 1, objs => $objs };	1207	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
775	aio_write $fh, 0, (length $data), $data, 0;	1208	aio_write $fh, 0, (length $data), $data, 0;
776	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	}
777	close $fh;	1213	aio_close $fh;
778	aio_rename "$filename.pst~", "$filename.pst";	1214	aio_rename "$filename.pst~", "$filename.pst";
779	}	1215	}
780	} else {	1216	} else {
781	aio_unlink "$filename.pst";	1217	aio_unlink "$filename.pst";
782	}	1218	}
783		1219
784	aio_rename "$filename~", $filename;	1220	aio_rename "$filename~", $filename;
		1221
		1222	$filename =~ s%/[^/]+$%%;
		1223	aio_pathsync $filename if $cf::USE_FSYNC;
785	} else {	1224	} else {
786	warn "FATAL: $filename~: $!\n";	1225	warn "unable to save objects: $filename~: $!\n";
787	}	1226	}
788	} else {	1227	} else {
789	aio_unlink $filename;	1228	aio_unlink $filename;
790	aio_unlink "$filename.pst";	1229	aio_unlink "$filename.pst";
791	}	1230	}
792	}	1231	};
793	}	1232	}
794		1233
795	sub object_freezer_as_string {	1234	sub object_freezer_as_string {
796	my ($rdata, $objs) = @_;	1235	my ($rdata, $objs) = @_;
797		1236
…		…
809	or return;	1248	or return;
810		1249
811	unless (aio_stat "$filename.pst") {	1250	unless (aio_stat "$filename.pst") {
812	(aio_load "$filename.pst", $av) >= 0	1251	(aio_load "$filename.pst", $av) >= 0
813	or return;	1252	or return;
		1253
814	$av = eval { (Storable::thaw $av)->{objs} };	1254	my $st = eval { Coro::Storable::thaw $av };
		1255	$av = $st->{objs};
815	}	1256	}
816		1257
		1258	utf8::decode (my $decname = $filename);
817	warn sprintf "loading %s (%d)\n",	1259	warn sprintf "loading %s (%d,%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1260	$decname, length $data, scalar @{$av || []};
		1261
819	return ($data, $av);	1262	($data, $av)
820	}	1263	}
		1264
		1265	=head2 COMMAND CALLBACKS
		1266
		1267	=over 4
		1268
		1269	=cut
821		1270
822	#############################################################################	1271	#############################################################################
823	# command handling &c	1272	# command handling &c
824		1273
825	=item cf::register_command $name => \&callback($ob,$args);	1274	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1287	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1288	}
840		1289
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1290	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1291
843	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.
844		1297
845	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
846	called.	1299	called.
847		1300
		1301	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1302
		1303	Register a callback for execution when the client sends an (asynchronous)
		1304	exticmd packet. Exti commands are processed by the server as soon as they
		1305	are received, i.e. out of order w.r.t. other commands. The first argument
		1306	is a client socket. Exti commands can be received anytime, even before
		1307	log-in.
		1308
		1309	If the callback returns something, it is sent back as if reply was being
		1310	called.
		1311
848	=cut	1312	=cut
849		1313
850	sub register_extcmd {	1314	sub register_extcmd {
851	my ($name, $cb) = @_;	1315	my ($name, $cb) = @_;
852		1316
853	$EXTCMD{$name} = $cb;	1317	$EXTCMD{$name} = $cb;
854	}	1318	}
855		1319
		1320	sub register_exticmd {
		1321	my ($name, $cb) = @_;
		1322
		1323	$EXTICMD{$name} = $cb;
		1324	}
		1325
		1326	use File::Glob ();
		1327
856	cf::player->attach (	1328	cf::player->attach (
857	on_command => sub {	1329	on_unknown_command => sub {
858	my ($pl, $name, $params) = @_;	1330	my ($pl, $name, $params) = @_;
859		1331
860	my $cb = $COMMAND{$name}	1332	my $cb = $COMMAND{$name}
861	or return;	1333	or return;
862		1334
…		…
867	cf::override;	1339	cf::override;
868	},	1340	},
869	on_extcmd => sub {	1341	on_extcmd => sub {
870	my ($pl, $buf) = @_;	1342	my ($pl, $buf) = @_;
871		1343
872	my $msg = eval { from_json $buf };	1344	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
873		1345
874	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
875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1354	if (my $cb = $EXTCMD{$type}) {
876	if (my %reply = $cb->($pl, $msg)) {	1355	@reply = $cb->($pl, @payload);
877	$pl->ext_reply ($msg->{msgid}, %reply);
878	}
879	}	1356	}
		1357
		1358	$pl->ext_reply ($reply, @reply)
		1359	if $reply;
		1360
880	} else {	1361	} else {
881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1362	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
882	}	1363	}
883		1364
884	cf::override;	1365	cf::override;
885	},	1366	},
886	);	1367	);
887		1368
		1369	# "readahead" all extensions
888	sub load_extension {	1370	sub cache_extensions {
889	my ($path) = @_;	1371	my $grp = IO::AIO::aio_group;
890		1372
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1373	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
892	my $base = $1;	1374	for (grep /\.ext$/, @{$_[0]}) {
893	my $pkg = $1;	1375	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}	1376	}
916	die $@;
917	}	1377	};
918		1378
919	push @EXTS, $pkg;	1379	$grp
920	}	1380	}
921		1381
922	sub load_extensions {	1382	sub load_extensions {
		1383	cf::sync_job {
		1384	my %todo;
		1385
923	for my $ext (<$LIBDIR/*.ext>) {	1386	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1387	next unless -r $path;
925	eval {	1388
926	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 $active;
		1448	}
927	1	1449	}
928	} or warn "$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	}
929	}	1460	};
930	}	1461	}
931		1462
932	#############################################################################	1463	#############################################################################
933		1464
		1465	=back
		1466
934	=head2 CORE EXTENSIONS	1467	=head2 CORE EXTENSIONS
935		1468
936	Functions and methods that extend core crossfire objects.	1469	Functions and methods that extend core deliantra objects.
937		1470
938	=cut	1471	=cut
939		1472
940	package cf::player;	1473	package cf::player;
941		1474
…		…
943		1476
944	=head3 cf::player	1477	=head3 cf::player
945		1478
946	=over 4	1479	=over 4
947		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
948	=item cf::player::find $login	1495	=item cf::player::find $login
949		1496
950	Returns the given player object, loading it if necessary (might block).	1497	Returns the given player object, loading it if necessary (might block).
951		1498
952	=cut	1499	=cut
953		1500
954	sub playerdir($) {	1501	sub playerdir($) {
955	cf::localdir	1502	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1503	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1504	}
961		1505
962	sub path($) {	1506	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1507	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1508
965	(playerdir $login) . "/$login.pl"	1509	(playerdir $login) . "/playerdata"
966	}	1510	}
967		1511
968	sub find_active($) {	1512	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1513	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1514	and $cf::PLAYER{$_[0]}->active
…		…
973		1517
974	sub exists($) {	1518	sub exists($) {
975	my ($login) = @_;	1519	my ($login) = @_;
976		1520
977	$cf::PLAYER{$login}	1521	$cf::PLAYER{$login}
978	or cf::sync_job { !aio_stat path $login }	1522	or !aio_stat path $login
979	}	1523	}
980		1524
981	sub find($) {	1525	sub find($) {
982	return $cf::PLAYER{$_[0]} || do {	1526	return $cf::PLAYER{$_[0]} || do {
983	my $login = $_[0];	1527	my $login = $_[0];
984		1528
985	my $guard = cf::lock_acquire "user_find:$login";	1529	my $guard = cf::lock_acquire "user_find:$login";
986		1530
987	$cf::PLAYER{$_[0]} || do {	1531	$cf::PLAYER{$_[0]} || do {
988	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
989	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;
990	$cf::PLAYER{$login} = $pl	1547	$cf::PLAYER{$login} = $pl
991	}	1548	}
992	}	1549	}
993	}	1550	}
		1551
		1552	cf::player->attach (
		1553	on_load => sub {
		1554	my ($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	);
994		1564
995	sub save($) {	1565	sub save($) {
996	my ($pl) = @_;	1566	my ($pl) = @_;
997		1567
998	return if $pl->{deny_save};	1568	return if $pl->{deny_save};
…		…
1003	return if $pl->{deny_save};	1573	return if $pl->{deny_save};
1004		1574
1005	aio_mkdir playerdir $pl, 0770;	1575	aio_mkdir playerdir $pl, 0770;
1006	$pl->{last_save} = $cf::RUNTIME;	1576	$pl->{last_save} = $cf::RUNTIME;
1007		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
1008	$pl->save_pl ($path);	1583	$pl->save_pl ($path);
1009	Coro::cede;	1584	cf::cede_to_tick;
1010	}	1585	}
1011		1586
1012	sub new($) {	1587	sub new($) {
1013	my ($login) = @_;	1588	my ($login) = @_;
1014		1589
…		…
1020	$cf::PLAYER{$login} = $self;	1595	$cf::PLAYER{$login} = $self;
1021		1596
1022	$self	1597	$self
1023	}	1598	}
1024		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
1025	=item $pl->quit_character	1610	=item $pl->quit_character
1026		1611
1027	Nukes the player without looking back. If logged in, the connection will	1612	Nukes the player without looking back. If logged in, the connection will
1028	be destroyed. May block for a long time.	1613	be destroyed. May block for a long time.
1029		1614
…		…
1033	my ($pl) = @_;	1618	my ($pl) = @_;
1034		1619
1035	my $name = $pl->ob->name;	1620	my $name = $pl->ob->name;
1036		1621
1037	$pl->{deny_save} = 1;	1622	$pl->{deny_save} = 1;
1038	$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
1039		1624
1040	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1625	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1041	$pl->deactivate;	1626	$pl->deactivate;
		1627	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1628	$pl->ob->check_score;
1042	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1629	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1043	$pl->ns->destroy if $pl->ns;	1630	$pl->ns->destroy if $pl->ns;
1044		1631
1045	my $path = playerdir $pl;	1632	my $path = playerdir $pl;
1046	my $temp = "$path~$cf::RUNTIME~deleting~";	1633	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1054	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;	1641	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1055		1642
1056	IO::AIO::aio_rmtree $temp;	1643	IO::AIO::aio_rmtree $temp;
1057	}	1644	}
1058		1645
		1646	=item $pl->kick
		1647
		1648	Kicks a player out of the game. This destroys the connection.
		1649
		1650	=cut
		1651
		1652	sub kick {
		1653	my ($pl, $kicker) = @_;
		1654
		1655	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1656	$pl->killer ("kicked");
		1657	$pl->ns->destroy;
		1658	}
		1659
1059	=item cf::player::list_logins	1660	=item cf::player::list_logins
1060		1661
1061	Returns am arrayref of all valid playernames in the system, can take a	1662	Returns am arrayref of all valid playernames in the system, can take a
1062	while and may block, so not sync_job-capable, ever.	1663	while and may block, so not sync_job-capable, ever.
1063		1664
1064	=cut	1665	=cut
1065		1666
1066	sub list_logins {	1667	sub list_logins {
1067	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1668	my $dirs = aio_readdir $PLAYERDIR
1068	or return [];	1669	or return [];
1069		1670
1070	my @logins;	1671	my @logins;
1071		1672
1072	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") {
1073	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1679	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1074	aio_read $fh, 0, 512, my $buf, 0 or next;	1680	aio_read $fh, 0, 512, my $buf, 0 or next;
1075	$buf !~ /^password -------------$/m or next; # official not-valid tag	1681	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1682	}
1076		1683
1077	utf8::decode $login;	1684	utf8::decode $login;
1078	push @logins, $login;	1685	push @logins, $login;
1079	}	1686	}
1080		1687
…		…
1107	}	1714	}
1108		1715
1109	\@paths	1716	\@paths
1110	}	1717	}
1111		1718
		1719	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1720
		1721	Expand deliantra pod fragments into protocol xml.
		1722
1112	=item $player->ext_reply ($msgid, $msgtype, %msg)	1723	=item $player->ext_reply ($msgid, @msg)
1113		1724
1114	Sends an ext reply to the player.	1725	Sends an ext reply to the player.
1115		1726
1116	=cut	1727	=cut
1117		1728
1118	sub ext_reply($$$%) {	1729	sub ext_reply($$@) {
1119	my ($self, $id, %msg) = @_;	1730	my ($self, $id, @msg) = @_;
1120		1731
1121	$msg{msgid} = $id;	1732	$self->ns->ext_reply ($id, @msg)
1122
1123	$self->send ("ext " . cf::to_json \%msg);
1124	}	1733	}
1125		1734
1126	package cf;	1735	=item $player->ext_msg ($type, @msg)
		1736
		1737	Sends an ext event to the client.
		1738
		1739	=cut
		1740
		1741	sub ext_msg($$@) {
		1742	my ($self, $type, @msg) = @_;
		1743
		1744	$self->ns->ext_msg ($type, @msg);
		1745	}
		1746
		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	}
1127		1775
1128	=back	1776	=back
1129
1130		1777
1131	=head3 cf::map	1778	=head3 cf::map
1132		1779
1133	=over 4	1780	=over 4
1134		1781
…		…
1146	our $MAX_RESET = 3600;	1793	our $MAX_RESET = 3600;
1147	our $DEFAULT_RESET = 3000;	1794	our $DEFAULT_RESET = 3000;
1148		1795
1149	sub generate_random_map {	1796	sub generate_random_map {
1150	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
1151	# mit "rum" bekleckern, nicht	1801	# mit "rum" bekleckern, nicht
1152	$self->_create_random_map (	1802	$self->_create_random_map (
1153	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1803	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1154	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1804	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1155	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1805	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1156	$rmp->{exit_on_final_map},	1806	$rmp->{exit_on_final_map},
1157	$rmp->{xsize}, $rmp->{ysize},	1807	$rmp->{xsize}, $rmp->{ysize},
1158	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1808	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1159	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1809	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1189	my ($self, $merge) = @_;	1839	my ($self, $merge) = @_;
1190		1840
1191	# we have to keep some variables in memory intact	1841	# we have to keep some variables in memory intact
1192	local $self->{path};	1842	local $self->{path};
1193	local $self->{load_path};	1843	local $self->{load_path};
1194	local $self->{deny_save};
1195	local $self->{deny_reset};
1196		1844
1197	$self->SUPER::thawer_merge ($merge);	1845	$self->SUPER::thawer_merge ($merge);
1198	}	1846	}
1199		1847
1200	sub normalise {	1848	sub normalise {
…		…
1247	$self->init; # pass $1 etc.	1895	$self->init; # pass $1 etc.
1248	return $self;	1896	return $self;
1249	}	1897	}
1250	}	1898	}
1251		1899
1252	Carp::carp "unable to resolve path '$path' (base '$base').";	1900	Carp::cluck "unable to resolve path '$path' (base '$base').";
1253	()	1901	()
1254	}	1902	}
1255		1903
1256	sub init {	1904	sub init {
1257	my ($self) = @_;	1905	my ($self) = @_;
…		…
1272		1920
1273	# the original (read-only) location	1921	# the original (read-only) location
1274	sub load_path {	1922	sub load_path {
1275	my ($self) = @_;	1923	my ($self) = @_;
1276		1924
1277	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1925	"$MAPDIR/$self->{path}.map"
1278	}	1926	}
1279		1927
1280	# the temporary/swap location	1928	# the temporary/swap location
1281	sub save_path {	1929	sub save_path {
1282	my ($self) = @_;	1930	my ($self) = @_;
1283		1931
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1932	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1285	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1933	"$TMPDIR/$path.map"
1286	}	1934	}
1287		1935
1288	# the unique path, undef == no special unique path	1936	# the unique path, undef == no special unique path
1289	sub uniq_path {	1937	sub uniq_path {
1290	my ($self) = @_;	1938	my ($self) = @_;
1291		1939
1292	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1940	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1293	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1941	"$UNIQUEDIR/$path"
1294	}	1942	}
1295		1943
1296	# and all this just because we cannot iterate over	1944	sub decay_objects {
1297	# all maps in C++...
1298	sub change_all_map_light {
1299	my ($change) = @_;	1945	my ($self) = @_;
1300		1946
1301	$_->change_map_light ($change)	1947	return if $self->{deny_reset};
1302	for grep $_->outdoor, values %cf::MAP;	1948
		1949	$self->do_decay_objects;
1303	}	1950	}
1304		1951
1305	sub unlink_save {	1952	sub unlink_save {
1306	my ($self) = @_;	1953	my ($self) = @_;
1307		1954
…		…
1312		1959
1313	sub load_header_from($) {	1960	sub load_header_from($) {
1314	my ($self, $path) = @_;	1961	my ($self, $path) = @_;
1315		1962
1316	utf8::encode $path;	1963	utf8::encode $path;
1317	#aio_open $path, O_RDONLY, 0	1964	my $f = new_from_file cf::object::thawer $path
1318	# or return;
1319
1320	$self->_load_header ($path)
1321	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;
1322		1972
1323	$self->{load_path} = $path;	1973	$self->{load_path} = $path;
1324		1974
1325	1	1975	1
1326	}	1976	}
…		…
1365	$self->load_header_orig	2015	$self->load_header_orig
1366	or return;	2016	or return;
1367	$self->prepare_orig;	2017	$self->prepare_orig;
1368	}	2018	}
1369		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
1370	1	2026	1
1371	}	2027	}
1372		2028
1373	sub find;	2029	sub find;
1374	sub find {	2030	sub find {
1375	my ($path, $origin) = @_;	2031	my ($path, $origin) = @_;
1376		2032
1377	$path = normalise $path, $origin && $origin->path;	2033	$path = normalise $path, $origin && $origin->path;
1378		2034
		2035	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1379	cf::lock_wait "map_find:$path";	2036	my $guard2 = cf::lock_acquire "map_find:$path";
1380		2037
1381	$cf::MAP{$path} || do {	2038	$cf::MAP{$path} || do {
1382	my $guard = cf::lock_acquire "map_find:$path";
1383	my $map = new_from_path cf::map $path	2039	my $map = new_from_path cf::map $path
1384	or return;	2040	or return;
1385		2041
1386	$map->{last_save} = $cf::RUNTIME;	2042	$map->{last_save} = $cf::RUNTIME;
1387		2043
1388	$map->load_header	2044	$map->load_header
1389	or return;	2045	or return;
1390		2046
1391	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2047	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1392	# doing this can freeze the server in a sync job, obviously	2048	# doing this can freeze the server in a sync job, obviously
1393	#$cf::WAIT_FOR_TICK->wait;	2049	#$cf::WAIT_FOR_TICK->wait;
		2050	undef $guard2;
		2051	undef $guard1;
1394	$map->reset;	2052	$map->reset;
1395	undef $guard;
1396	return find $path;	2053	return find $path;
1397	}	2054	}
1398		2055
1399	$cf::MAP{$path} = $map	2056	$cf::MAP{$path} = $map
1400	}	2057	}
1401	}	2058	}
1402		2059
1403	sub pre_load { }	2060	sub pre_load { }
1404	sub post_load { }	2061	#sub post_load { } # XS
1405		2062
1406	sub load {	2063	sub load {
1407	my ($self) = @_;	2064	my ($self) = @_;
1408		2065
1409	local $self->{deny_reset} = 1; # loading can take a long time	2066	local $self->{deny_reset} = 1; # loading can take a long time
1410		2067
1411	my $path = $self->{path};	2068	my $path = $self->{path};
		2069
		2070	{
1412	my $guard = cf::lock_acquire "map_load:$path";	2071	my $guard = cf::lock_acquire "map_data:$path";
1413		2072
		2073	return unless $self->valid;
1414	return if $self->in_memory != cf::MAP_SWAPPED;	2074	return unless $self->in_memory == cf::MAP_SWAPPED;
1415		2075
1416	$self->in_memory (cf::MAP_LOADING);	2076	$self->in_memory (cf::MAP_LOADING);
1417		2077
1418	$self->alloc;	2078	$self->alloc;
1419		2079
1420	$self->pre_load;	2080	$self->pre_load;
		2081	cf::cede_to_tick;
1421		2082
1422	$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)
1423	or return;	2086	or return;
1424		2087
1425	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2088	$self->post_load_original
1426	if delete $self->{load_original};	2089	if delete $self->{load_original};
1427		2090
1428	if (my $uniq = $self->uniq_path) {	2091	if (my $uniq = $self->uniq_path) {
1429	utf8::encode $uniq;	2092	utf8::encode $uniq;
1430	if (aio_open $uniq, O_RDONLY, 0) {	2093	unless (aio_stat $uniq) {
		2094	if (my $f = new_from_file cf::object::thawer $uniq) {
1431	$self->clear_unique_items;	2095	$self->clear_unique_items;
1432	$self->_load_objects ($uniq, 0);	2096	$self->_load_objects ($f);
		2097	$f->resolve_delayed_derefs;
		2098	}
1433	}	2099	}
1434	}	2100	}
1435		2101
1436	Coro::cede;	2102	$f->resolve_delayed_derefs;
1437		2103
		2104	cf::cede_to_tick;
1438	# now do the right thing for maps	2105	# now do the right thing for maps
1439	$self->link_multipart_objects;	2106	$self->link_multipart_objects;
1440
1441	unless ($self->{deny_activate}) {
1442	$self->decay_objects;
1443	$self->fix_auto_apply;
1444	$self->update_buttons;
1445	Coro::cede;
1446	$self->set_darkness_map;
1447	$self->difficulty ($self->estimate_difficulty)	2107	$self->difficulty ($self->estimate_difficulty)
1448	unless $self->difficulty;	2108	unless $self->difficulty;
1449	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;
1450	$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);
1451	}	2123	}
1452		2124
1453	$self->post_load;	2125	$self->post_load;
1454
1455	$self->in_memory (cf::MAP_IN_MEMORY);
1456	}	2126	}
1457		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
1458	sub customise_for {	2131	sub customise_for {
1459	my ($self, $ob) = @_;	2132	my ($self, $ob) = @_;
1460		2133
1461	return find "~" . $ob->name . "/" . $self->{path}	2134	return find "~" . $ob->name . "/" . $self->{path}
1462	if $self->per_player;	2135	if $self->per_player;
1463		2136
		2137	# return find "?party/" . $ob->name . "/" . $self->{path}
		2138	# if $self->per_party;
		2139
1464	$self	2140	$self
1465	}	2141	}
1466		2142
1467	# 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
1468	sub load_diag {	2144	sub load_neighbours {
1469	my ($map) = @_;	2145	my ($map) = @_;
1470		2146
1471	my @diag; # diagonal neighbours	2147	my @neigh; # diagonal neighbours
1472		2148
1473	for (0 .. 3) {	2149	for (0 .. 3) {
1474	my $neigh = $map->tile_path ($_)	2150	my $neigh = $map->tile_path ($_)
1475	or next;	2151	or next;
1476	$neigh = find $neigh, $map	2152	$neigh = find $neigh, $map
1477	or next;	2153	or next;
1478	$neigh->load;	2154	$neigh->load;
1479		2155
		2156	push @neigh,
1480	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2157	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1481	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2158	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1482	}	2159	}
1483		2160
1484	for (@diag) {	2161	for (grep defined $_->[0], @neigh) {
		2162	my ($path, $origin) = @$_;
1485	my $neigh = find @$_	2163	my $neigh = find $path, $origin
1486	or next;	2164	or next;
1487	$neigh->load;	2165	$neigh->load;
1488	}	2166	}
1489	}	2167	}
1490		2168
…		…
1495	}	2173	}
1496		2174
1497	sub do_load_sync {	2175	sub do_load_sync {
1498	my ($map) = @_;	2176	my ($map) = @_;
1499		2177
		2178	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2179	if $Coro::current == $Coro::main;
		2180
1500	cf::sync_job { $map->load };	2181	cf::sync_job { $map->load };
1501	}	2182	}
1502		2183
1503	our %MAP_PREFETCH;	2184	our %MAP_PREFETCH;
1504	our $MAP_PREFETCHER = undef;	2185	our $MAP_PREFETCHER = undef;
1505		2186
1506	sub find_async {	2187	sub find_async {
1507	my ($path, $origin) = @_;	2188	my ($path, $origin, $load) = @_;
1508		2189
1509	$path = normalise $path, $origin && $origin->{path};	2190	$path = normalise $path, $origin && $origin->{path};
1510		2191
1511	if (my $map = $cf::MAP{$path}) {	2192	if (my $map = $cf::MAP{$path}) {
1512	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2193	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1513	}	2194	}
1514		2195
1515	undef $MAP_PREFETCH{$path};	2196	$MAP_PREFETCH{$path} |= $load;
		2197
1516	$MAP_PREFETCHER ||= cf::async {	2198	$MAP_PREFETCHER ||= cf::async {
		2199	$Coro::current->{desc} = "map prefetcher";
		2200
1517	while (%MAP_PREFETCH) {	2201	while (%MAP_PREFETCH) {
1518	for my $path (keys %MAP_PREFETCH) {	2202	while (my ($k, $v) = each %MAP_PREFETCH) {
1519	my $map = find $path	2203	if (my $map = find $k) {
1520	or next;
1521	$map->load;	2204	$map->load if $v;
		2205	}
1522		2206
1523	delete $MAP_PREFETCH{$path};	2207	delete $MAP_PREFETCH{$k};
1524	}	2208	}
1525	}	2209	}
1526	undef $MAP_PREFETCHER;	2210	undef $MAP_PREFETCHER;
1527	};	2211	};
1528	$MAP_PREFETCHER->prio (6);	2212	$MAP_PREFETCHER->prio (6);
1529		2213
1530	()	2214	()
1531	}	2215	}
1532		2216
		2217	# common code, used by both ->save and ->swapout
1533	sub save {	2218	sub _save {
1534	my ($self) = @_;	2219	my ($self) = @_;
1535
1536	my $lock = cf::lock_acquire "map_data:" . $self->path;
1537		2220
1538	$self->{last_save} = $cf::RUNTIME;	2221	$self->{last_save} = $cf::RUNTIME;
1539		2222
1540	return unless $self->dirty;	2223	return unless $self->dirty;
1541		2224
…		…
1547	return if $self->{deny_save};	2230	return if $self->{deny_save};
1548		2231
1549	local $self->{last_access} = $self->last_access;#d#	2232	local $self->{last_access} = $self->last_access;#d#
1550		2233
1551	cf::async {	2234	cf::async {
		2235	$Coro::current->{desc} = "map player save";
1552	$_->contr->save for $self->players;	2236	$_->contr->save for $self->players;
1553	};	2237	};
		2238
		2239	cf::get_slot 0.02;
1554		2240
1555	if ($uniq) {	2241	if ($uniq) {
1556	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2242	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1557	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2243	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1558	} else {	2244	} else {
1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2245	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1560	}	2246	}
1561	}	2247	}
1562		2248
		2249	sub save {
		2250	my ($self) = @_;
		2251
		2252	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2253
		2254	$self->_save;
		2255	}
		2256
1563	sub swap_out {	2257	sub swap_out {
1564	my ($self) = @_;	2258	my ($self) = @_;
1565		2259
1566	# save first because save cedes
1567	$self->save;
1568
1569	my $lock = cf::lock_acquire "map_data:" . $self->path;	2260	my $lock = cf::lock_acquire "map_data:$self->{path}";
1570		2261
		2262	return if $self->in_memory != cf::MAP_ACTIVE;
		2263	return if $self->{deny_save};
1571	return if $self->players;	2264	return if $self->players;
1572	return if $self->in_memory != cf::MAP_IN_MEMORY;
1573	return if $self->{deny_save};
1574		2265
		2266	# first deactivate the map and "unlink" it from the core
		2267	$self->deactivate;
		2268	$_->clear_links_to ($self) for values %cf::MAP;
		2269	$self->in_memory (cf::MAP_SWAPPED);
		2270
		2271	# then atomically save
		2272	$self->_save;
		2273
		2274	# then free the map
1575	$self->clear;	2275	$self->clear;
1576	$self->in_memory (cf::MAP_SWAPPED);
1577	}	2276	}
1578		2277
1579	sub reset_at {	2278	sub reset_at {
1580	my ($self) = @_;	2279	my ($self) = @_;
1581		2280
1582	# TODO: safety, remove and allow resettable per-player maps	2281	# TODO: safety, remove and allow resettable per-player maps
1583	return 1e99 if $self->isa ("ext::map_per_player");#d#
1584	return 1e99 if $self->{deny_reset};	2282	return 1e99 if $self->{deny_reset};
1585		2283
1586	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2284	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1587	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2285	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1588		2286
…		…
1599	my ($self) = @_;	2297	my ($self) = @_;
1600		2298
1601	my $lock = cf::lock_acquire "map_data:$self->{path}";	2299	my $lock = cf::lock_acquire "map_data:$self->{path}";
1602		2300
1603	return if $self->players;	2301	return if $self->players;
1604	return if $self->isa ("ext::map_per_player");#d#
1605		2302
1606	warn "resetting map ", $self->path;#d#	2303	warn "resetting map ", $self->path, "\n";
1607		2304
1608	$self->in_memory (cf::MAP_SWAPPED);	2305	$self->in_memory (cf::MAP_SWAPPED);
1609		2306
1610	# need to save uniques path	2307	# need to save uniques path
1611	unless ($self->{deny_save}) {	2308	unless ($self->{deny_save}) {
…		…
1615	if $uniq;	2312	if $uniq;
1616	}	2313	}
1617		2314
1618	delete $cf::MAP{$self->path};	2315	delete $cf::MAP{$self->path};
1619		2316
		2317	$self->deactivate;
		2318	$_->clear_links_to ($self) for values %cf::MAP;
1620	$self->clear;	2319	$self->clear;
1621
1622	$_->clear_links_to ($self) for values %cf::MAP;
1623		2320
1624	$self->unlink_save;	2321	$self->unlink_save;
1625	$self->destroy;	2322	$self->destroy;
1626	}	2323	}
1627		2324
1628	my $nuke_counter = "aaaa";	2325	my $nuke_counter = "aaaa";
1629		2326
1630	sub nuke {	2327	sub nuke {
1631	my ($self) = @_;	2328	my ($self) = @_;
1632		2329
		2330	{
		2331	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2332
1633	delete $cf::MAP{$self->path};	2333	delete $cf::MAP{$self->path};
1634		2334
1635	$self->unlink_save;	2335	$self->unlink_save;
1636		2336
1637	bless $self, "cf::map";	2337	bless $self, "cf::map";
1638	delete $self->{deny_reset};	2338	delete $self->{deny_reset};
1639	$self->{deny_save} = 1;	2339	$self->{deny_save} = 1;
1640	$self->reset_timeout (1);	2340	$self->reset_timeout (1);
1641	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2341	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1642		2342
1643	$cf::MAP{$self->path} = $self;	2343	$cf::MAP{$self->path} = $self;
		2344	}
1644		2345
1645	$self->reset; # polite request, might not happen	2346	$self->reset; # polite request, might not happen
		2347	}
		2348
		2349	=item $maps = cf::map::tmp_maps
		2350
		2351	Returns an arrayref with all map paths of currently instantiated and saved
		2352	maps. May block.
		2353
		2354	=cut
		2355
		2356	sub tmp_maps() {
		2357	[
		2358	map {
		2359	utf8::decode $_;
		2360	/\.map$/
		2361	? normalise $_
		2362	: ()
		2363	} @{ aio_readdir $TMPDIR or [] }
		2364	]
		2365	}
		2366
		2367	=item $maps = cf::map::random_maps
		2368
		2369	Returns an arrayref with all map paths of currently instantiated and saved
		2370	random maps. May block.
		2371
		2372	=cut
		2373
		2374	sub random_maps() {
		2375	[
		2376	map {
		2377	utf8::decode $_;
		2378	/\.map$/
		2379	? normalise "?random/$_"
		2380	: ()
		2381	} @{ aio_readdir $RANDOMDIR or [] }
		2382	]
1646	}	2383	}
1647		2384
1648	=item cf::map::unique_maps	2385	=item cf::map::unique_maps
1649		2386
1650	Returns an arrayref of paths of all shared maps that have	2387	Returns an arrayref of paths of all shared maps that have
1651	instantiated unique items. May block.	2388	instantiated unique items. May block.
1652		2389
1653	=cut	2390	=cut
1654		2391
1655	sub unique_maps() {	2392	sub unique_maps() {
1656	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2393	[
1657	or return;	2394	map {
1658
1659	my @paths;
1660
1661	for (@$files) {
1662	utf8::decode $_;	2395	utf8::decode $_;
1663	next if /\.pst$/;	2396	s/\.map$//; # TODO future compatibility hack
1664	next unless /^$PATH_SEP/o;	2397	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1665		2398	? ()
1666	push @paths, cf::map::normalise $_;	2399	: normalise $_
		2400	} @{ aio_readdir $UNIQUEDIR or [] }
1667	}	2401	]
1668
1669	\@paths
1670	}	2402	}
1671		2403
1672	package cf;	2404	=item cf::map::static_maps
		2405
		2406	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2407	file in the shared directory excluding F</styles> and F</editor>). May
		2408	block.
		2409
		2410	=cut
		2411
		2412	sub static_maps() {
		2413	my @dirs = "";
		2414	my @maps;
		2415
		2416	while (@dirs) {
		2417	my $dir = shift @dirs;
		2418
		2419	next if $dir eq "/styles" || $dir eq "/editor";
		2420
		2421	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2422	or return;
		2423
		2424	for (@$files) {
		2425	s/\.map$// or next;
		2426	utf8::decode $_;
		2427	push @maps, "$dir/$_";
		2428	}
		2429
		2430	push @dirs, map "$dir/$_", @$dirs;
		2431	}
		2432
		2433	\@maps
		2434	}
1673		2435
1674	=back	2436	=back
1675		2437
1676	=head3 cf::object	2438	=head3 cf::object
1677		2439
…		…
1681		2443
1682	=over 4	2444	=over 4
1683		2445
1684	=item $ob->inv_recursive	2446	=item $ob->inv_recursive
1685		2447
1686	Returns the inventory of the object _and_ their inventories, recursively.	2448	Returns the inventory of the object I<and> their inventories, recursively,
		2449	but I<not> the object itself.
1687		2450
1688	=cut	2451	=cut
1689		2452
1690	sub inv_recursive_;	2453	sub inv_recursive_;
1691	sub inv_recursive_ {	2454	sub inv_recursive_ {
…		…
1694		2457
1695	sub inv_recursive {	2458	sub inv_recursive {
1696	inv_recursive_ inv $_[0]	2459	inv_recursive_ inv $_[0]
1697	}	2460	}
1698		2461
		2462	=item $ref = $ob->ref
		2463
		2464	Creates and returns a persistent reference to an object that can be stored as a string.
		2465
		2466	=item $ob = cf::object::deref ($refstring)
		2467
		2468	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2469	even if the object actually exists. May block.
		2470
		2471	=cut
		2472
		2473	sub deref {
		2474	my ($ref) = @_;
		2475
		2476	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2477	my ($uuid, $name) = ($1, $2);
		2478	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2479	or return;
		2480	$pl->ob->uuid eq $uuid
		2481	or return;
		2482
		2483	$pl->ob
		2484	} else {
		2485	warn "$ref: cannot resolve object reference\n";
		2486	undef
		2487	}
		2488	}
		2489
1699	package cf;	2490	package cf;
1700		2491
1701	=back	2492	=back
1702		2493
1703	=head3 cf::object::player	2494	=head3 cf::object::player
…		…
1709	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2500	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1710	can be C<undef>. Does the right thing when the player is currently in a	2501	can be C<undef>. Does the right thing when the player is currently in a
1711	dialogue with the given NPC character.	2502	dialogue with the given NPC character.
1712		2503
1713	=cut	2504	=cut
		2505
		2506	our $SAY_CHANNEL = {
		2507	id => "say",
		2508	title => "Map",
		2509	reply => "say ",
		2510	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2511	};
		2512
		2513	our $CHAT_CHANNEL = {
		2514	id => "chat",
		2515	title => "Chat",
		2516	reply => "chat ",
		2517	tooltip => "Player chat and shouts, global to the server.",
		2518	};
1714		2519
1715	# rough implementation of a future "reply" method that works	2520	# rough implementation of a future "reply" method that works
1716	# with dialog boxes.	2521	# with dialog boxes.
1717	#TODO: the first argument must go, split into a $npc->reply_to ( method	2522	#TODO: the first argument must go, split into a $npc->reply_to ( method
1718	sub cf::object::player::reply($$$;$) {	2523	sub cf::object::player::reply($$$;$) {
…		…
1720		2525
1721	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2526	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1722		2527
1723	if ($self->{record_replies}) {	2528	if ($self->{record_replies}) {
1724	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2529	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2530
1725	} else {	2531	} else {
		2532	my $pl = $self->contr;
		2533
		2534	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2535	my $dialog = $pl->{npc_dialog};
		2536	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2537
		2538	} else {
1726	$msg = $npc->name . " says: $msg" if $npc;	2539	$msg = $npc->name . " says: $msg" if $npc;
1727	$self->message ($msg, $flags);	2540	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2541	}
1728	}	2542	}
		2543	}
		2544
		2545	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2546
		2547	=cut
		2548
		2549	sub cf::object::send_msg {
		2550	my $pl = shift->contr
		2551	or return;
		2552	$pl->send_msg (@_);
1729	}	2553	}
1730		2554
1731	=item $player_object->may ("access")	2555	=item $player_object->may ("access")
1732		2556
1733	Returns wether the given player is authorized to access resource "access"	2557	Returns wether the given player is authorized to access resource "access"
…		…
1746		2570
1747	=item $player_object->enter_link	2571	=item $player_object->enter_link
1748		2572
1749	Freezes the player and moves him/her to a special map (C<{link}>).	2573	Freezes the player and moves him/her to a special map (C<{link}>).
1750		2574
1751	The player should be reasonably safe there for short amounts of time. You	2575	The player should be reasonably safe there for short amounts of time (e.g.
1752	I<MUST> call C<leave_link> as soon as possible, though.	2576	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2577	though, as the palyer cannot control the character while it is on the link
		2578	map.
1753		2579
1754	Will never block.	2580	Will never block.
1755		2581
1756	=item $player_object->leave_link ($map, $x, $y)	2582	=item $player_object->leave_link ($map, $x, $y)
1757		2583
…		…
1780	$self->deactivate_recursive;	2606	$self->deactivate_recursive;
1781		2607
1782	return if UNIVERSAL::isa $self->map, "ext::map_link";	2608	return if UNIVERSAL::isa $self->map, "ext::map_link";
1783		2609
1784	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2610	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1785	if $self->map;	2611	if $self->map && $self->map->{path} ne "{link}";
1786		2612
1787	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2613	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1788	}	2614	}
1789		2615
1790	sub cf::object::player::leave_link {	2616	sub cf::object::player::leave_link {
1791	my ($self, $map, $x, $y) = @_;	2617	my ($self, $map, $x, $y) = @_;
		2618
		2619	return unless $self->contr->active;
1792		2620
1793	my $link_pos = delete $self->{_link_pos};	2621	my $link_pos = delete $self->{_link_pos};
1794		2622
1795	unless ($map) {	2623	unless ($map) {
1796	# restore original map position	2624	# restore original map position
…		…
1807	($x, $y) = (-1, -1)	2635	($x, $y) = (-1, -1)
1808	unless (defined $x) && (defined $y);	2636	unless (defined $x) && (defined $y);
1809		2637
1810	# use -1 or undef as default coordinates, not 0, 0	2638	# use -1 or undef as default coordinates, not 0, 0
1811	($x, $y) = ($map->enter_x, $map->enter_y)	2639	($x, $y) = ($map->enter_x, $map->enter_y)
1812	if $x <=0 && $y <= 0;	2640	if $x <= 0 && $y <= 0;
1813		2641
1814	$map->load;	2642	$map->load;
1815	$map->load_diag;	2643	$map->load_neighbours;
1816		2644
1817	return unless $self->contr->active;	2645	return unless $self->contr->active;
1818	$self->activate_recursive;
1819		2646
1820	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2647	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1821	$self->enter_map ($map, $x, $y);	2648	$self->enter_map ($map, $x, $y);
1822	}
1823		2649
1824	cf::player->attach (	2650	# only activate afterwards, to support waiting in hooks
1825	on_logout => sub {	2651	$self->activate_recursive;
1826	my ($pl) = @_;	2652	}
1827		2653
1828	# abort map switching before logout	2654	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1829	if ($pl->ob->{_link_pos}) {
1830	cf::sync_job {
1831	$pl->ob->leave_link
1832	};
1833	}
1834	},
1835	on_login => sub {
1836	my ($pl) = @_;
1837		2655
1838	# try to abort aborted map switching on player login :)	2656	Moves the player to the given map-path and coordinates by first freezing
1839	# should happen only on crashes	2657	her, loading and preparing them map, calling the provided $check callback
1840	if ($pl->ob->{_link_pos}) {	2658	that has to return the map if sucecssful, and then unfreezes the player on
1841	$pl->ob->enter_link;	2659	the new (success) or old (failed) map position. In either case, $done will
1842	(async {	2660	be called at the end of this process.
1843	$pl->ob->reply (undef,
1844	"There was an internal problem at your last logout, "
1845	. "the server will try to bring you to your intended destination in a second.",
1846	cf::NDI_RED);
1847	# we need this sleep as the login has a concurrent enter_exit running
1848	# and this sleep increases chances of the player not ending up in scorn
1849	Coro::Timer::sleep 1;
1850	$pl->ob->leave_link;
1851	})->prio (2);
1852	}
1853	},
1854	);
1855		2661
1856	=item $player_object->goto ($path, $x, $y)	2662	Note that $check will be called with a potentially non-loaded map, so if
		2663	it needs a loaded map it has to call C<< ->load >>.
1857		2664
1858	=cut	2665	=cut
		2666
		2667	our $GOTOGEN;
1859		2668
1860	sub cf::object::player::goto {	2669	sub cf::object::player::goto {
1861	my ($self, $path, $x, $y) = @_;	2670	my ($self, $path, $x, $y, $check, $done) = @_;
		2671
		2672	# do generation counting so two concurrent goto's will be executed in-order
		2673	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1862		2674
1863	$self->enter_link;	2675	$self->enter_link;
1864		2676
1865	(async {	2677	(async {
		2678	$Coro::current->{desc} = "player::goto $path $x $y";
		2679
		2680	# *tag paths override both path and x|y
		2681	if ($path =~ /^\*(.*)$/) {
		2682	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2683	my $ob = $obs[rand @obs];
		2684
		2685	# see if we actually can go there
		2686	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2687	$ob = $obs[rand @obs];
		2688	} else {
		2689	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2690	}
		2691	# else put us there anyways for now #d#
		2692
		2693	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2694	} else {
		2695	($path, $x, $y) = (undef, undef, undef);
		2696	}
		2697	}
		2698
1866	my $map = eval {	2699	my $map = eval {
1867	my $map = cf::map::find $path;	2700	my $map = defined $path ? cf::map::find $path : undef;
		2701
		2702	if ($map) {
1868	$map = $map->customise_for ($self) if $map;	2703	$map = $map->customise_for ($self);
		2704	$map = $check->($map) if $check && $map;
		2705	} else {
		2706	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2707	}
		2708
1869	$map	2709	$map
		2710	};
		2711
		2712	if ($@) {
		2713	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2714	LOG llevError | logBacktrace, Carp::longmess $@;
1870	} or	2715	}
1871	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1872		2716
		2717	if ($gen == $self->{_goto_generation}) {
		2718	delete $self->{_goto_generation};
1873	$self->leave_link ($map, $x, $y);	2719	$self->leave_link ($map, $x, $y);
		2720	}
		2721
		2722	$done->() if $done;
1874	})->prio (1);	2723	})->prio (1);
1875	}	2724	}
1876		2725
1877	=item $player_object->enter_exit ($exit_object)	2726	=item $player_object->enter_exit ($exit_object)
1878		2727
…		…
1898	}	2747	}
1899		2748
1900	sub prepare_random_map {	2749	sub prepare_random_map {
1901	my ($exit) = @_;	2750	my ($exit) = @_;
1902		2751
1903	my $guard = cf::lock_acquire "exit_prepare:$exit";
1904
1905	# all this does is basically replace the /! path by	2752	# all this does is basically replace the /! path by
1906	# a new random map path (?random/...) with a seed	2753	# a new random map path (?random/...) with a seed
1907	# that depends on the exit object	2754	# that depends on the exit object
1908		2755
1909	my $rmp = parse_random_map_params $exit->msg;	2756	my $rmp = parse_random_map_params $exit->msg;
…		…
1911	if ($exit->map) {	2758	if ($exit->map) {
1912	$rmp->{region} = $exit->region->name;	2759	$rmp->{region} = $exit->region->name;
1913	$rmp->{origin_map} = $exit->map->path;	2760	$rmp->{origin_map} = $exit->map->path;
1914	$rmp->{origin_x} = $exit->x;	2761	$rmp->{origin_x} = $exit->x;
1915	$rmp->{origin_y} = $exit->y;	2762	$rmp->{origin_y} = $exit->y;
		2763
		2764	$exit->map->touch;
1916	}	2765	}
1917		2766
1918	$rmp->{random_seed} ||= $exit->random_seed;	2767	$rmp->{random_seed} ||= $exit->random_seed;
1919		2768
1920	my $data = cf::to_json $rmp;	2769	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1921	my $md5 = Digest::MD5::md5_hex $data;	2770	my $md5 = Digest::MD5::md5_hex $data;
1922	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2771	my $meta = "$RANDOMDIR/$md5.meta";
1923		2772
1924	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2773	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1925	aio_write $fh, 0, (length $data), $data, 0;	2774	aio_write $fh, 0, (length $data), $data, 0;
1926	undef $fh;	2775	undef $fh;
1927	aio_rename "$meta~", $meta;	2776	aio_rename "$meta~", $meta;
1928		2777
		2778	my $slaying = "?random/$md5";
		2779
		2780	if ($exit->valid) {
1929	$exit->slaying ("?random/$md5");	2781	$exit->slaying ("?random/$md5");
1930	$exit->msg (undef);	2782	$exit->msg (undef);
		2783	}
1931	}	2784	}
1932	}	2785	}
1933		2786
1934	sub cf::object::player::enter_exit {	2787	sub cf::object::player::enter_exit {
1935	my ($self, $exit) = @_;	2788	my ($self, $exit) = @_;
1936		2789
1937	return unless $self->type == cf::PLAYER;	2790	return unless $self->type == cf::PLAYER;
1938		2791
1939	if ($exit->slaying eq "/!") {
1940	#TODO: this should de-fi-ni-te-ly not be a sync-job
1941	cf::sync_job { prepare_random_map $exit };
1942	}
1943
1944	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1945	my $hp = $exit->stats->hp;
1946	my $sp = $exit->stats->sp;
1947
1948	$self->enter_link;	2792	$self->enter_link;
1949		2793
1950	(async {	2794	(async {
1951	$self->deactivate_recursive; # just to be sure	2795	$Coro::current->{desc} = "enter_exit";
		2796
1952	unless (eval {	2797	unless (eval {
		2798	$self->deactivate_recursive; # just to be sure
		2799
		2800	# random map handling
		2801	{
		2802	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2803
		2804	prepare_random_map $exit
		2805	if $exit->slaying eq "/!";
		2806	}
		2807
		2808	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2809	my $x = $exit->stats->hp;
		2810	my $y = $exit->stats->sp;
		2811
1953	$self->goto ($slaying, $hp, $sp);	2812	$self->goto ($map, $x, $y);
1954		2813
		2814	# if exit is damned, update players death & WoR home-position
		2815	$self->contr->savebed ($map, $x, $y)
		2816	if $exit->flag (cf::FLAG_DAMNED);
		2817
1955	1;	2818	1
1956	}) {	2819	}) {
1957	$self->message ("Something went wrong deep within the crossfire server. "	2820	$self->message ("Something went wrong deep within the deliantra server. "
1958	. "I'll try to bring you back to the map you were before. "	2821	. "I'll try to bring you back to the map you were before. "
1959	. "Please report this to the dungeon master!",	2822	. "Please report this to the dungeon master!",
1960	cf::NDI_UNIQUE | cf::NDI_RED);	2823	cf::NDI_UNIQUE | cf::NDI_RED);
1961		2824
1962	warn "ERROR in enter_exit: $@";	2825	warn "ERROR in enter_exit: $@";
1963	$self->leave_link;	2826	$self->leave_link;
1964	}	2827	}
1965	})->prio (1);	2828	})->prio (1);
…		…
1978		2841
1979	sub cf::client::send_drawinfo {	2842	sub cf::client::send_drawinfo {
1980	my ($self, $text, $flags) = @_;	2843	my ($self, $text, $flags) = @_;
1981		2844
1982	utf8::encode $text;	2845	utf8::encode $text;
1983	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2846	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1984	}	2847	}
1985		2848
		2849	=item $client->send_big_packet ($pkt)
		2850
		2851	Like C<send_packet>, but tries to compress large packets, and fragments
		2852	them as required.
		2853
		2854	=cut
		2855
		2856	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2857
		2858	sub cf::client::send_big_packet {
		2859	my ($self, $pkt) = @_;
		2860
		2861	# try lzf for large packets
		2862	$pkt = "lzf " . Compress::LZF::compress $pkt
		2863	if 1024 <= length $pkt and $self->{can_lzf};
		2864
		2865	# split very large packets
		2866	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2867	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2868	$pkt = "frag";
		2869	}
		2870
		2871	$self->send_packet ($pkt);
		2872	}
		2873
		2874	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2875
		2876	Send a drawinfo or msg packet to the client, formatting the msg for the
		2877	client if neccessary. C<$type> should be a string identifying the type of
		2878	the message, with C<log> being the default. If C<$color> is negative, suppress
		2879	the message unless the client supports the msg packet.
		2880
		2881	=cut
		2882
		2883	# non-persistent channels (usually the info channel)
		2884	our %CHANNEL = (
		2885	"c/motd" => {
		2886	id => "infobox",
		2887	title => "MOTD",
		2888	reply => undef,
		2889	tooltip => "The message of the day",
		2890	},
		2891	"c/identify" => {
		2892	id => "infobox",
		2893	title => "Identify",
		2894	reply => undef,
		2895	tooltip => "Items recently identified",
		2896	},
		2897	"c/examine" => {
		2898	id => "infobox",
		2899	title => "Examine",
		2900	reply => undef,
		2901	tooltip => "Signs and other items you examined",
		2902	},
		2903	"c/shopinfo" => {
		2904	id => "infobox",
		2905	title => "Shop Info",
		2906	reply => undef,
		2907	tooltip => "What your bargaining skill tells you about the shop",
		2908	},
		2909	"c/book" => {
		2910	id => "infobox",
		2911	title => "Book",
		2912	reply => undef,
		2913	tooltip => "The contents of a note or book",
		2914	},
		2915	"c/lookat" => {
		2916	id => "infobox",
		2917	title => "Look",
		2918	reply => undef,
		2919	tooltip => "What you saw there",
		2920	},
		2921	"c/who" => {
		2922	id => "infobox",
		2923	title => "Players",
		2924	reply => undef,
		2925	tooltip => "Shows players who are currently online",
		2926	},
		2927	"c/body" => {
		2928	id => "infobox",
		2929	title => "Body Parts",
		2930	reply => undef,
		2931	tooltip => "Shows which body parts you posess and are available",
		2932	},
		2933	"c/statistics" => {
		2934	id => "infobox",
		2935	title => "Statistics",
		2936	reply => undef,
		2937	tooltip => "Shows your primary statistics",
		2938	},
		2939	"c/skills" => {
		2940	id => "infobox",
		2941	title => "Skills",
		2942	reply => undef,
		2943	tooltip => "Shows your experience per skill and item power",
		2944	},
		2945	"c/shopitems" => {
		2946	id => "infobox",
		2947	title => "Shop Items",
		2948	reply => undef,
		2949	tooltip => "Shows the items currently for sale in this shop",
		2950	},
		2951	"c/resistances" => {
		2952	id => "infobox",
		2953	title => "Resistances",
		2954	reply => undef,
		2955	tooltip => "Shows your resistances",
		2956	},
		2957	"c/pets" => {
		2958	id => "infobox",
		2959	title => "Pets",
		2960	reply => undef,
		2961	tooltip => "Shows information abotu your pets/a specific pet",
		2962	},
		2963	"c/perceiveself" => {
		2964	id => "infobox",
		2965	title => "Perceive Self",
		2966	reply => undef,
		2967	tooltip => "You gained detailed knowledge about yourself",
		2968	},
		2969	"c/uptime" => {
		2970	id => "infobox",
		2971	title => "Uptime",
		2972	reply => undef,
		2973	tooltip => "How long the server has been running since last restart",
		2974	},
		2975	"c/mapinfo" => {
		2976	id => "infobox",
		2977	title => "Map Info",
		2978	reply => undef,
		2979	tooltip => "Information related to the maps",
		2980	},
		2981	"c/party" => {
		2982	id => "party",
		2983	title => "Party",
		2984	reply => "gsay ",
		2985	tooltip => "Messages and chat related to your party",
		2986	},
		2987	"c/death" => {
		2988	id => "death",
		2989	title => "Death",
		2990	reply => undef,
		2991	tooltip => "Reason for and more info about your most recent death",
		2992	},
		2993	"c/say" => $SAY_CHANNEL,
		2994	"c/chat" => $CHAT_CHANNEL,
		2995	);
		2996
		2997	sub cf::client::send_msg {
		2998	my ($self, $channel, $msg, $color, @extra) = @_;
		2999
		3000	$msg = $self->pl->expand_cfpod ($msg)
		3001	unless $color & cf::NDI_VERBATIM;
		3002
		3003	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3004
		3005	# check predefined channels, for the benefit of C
		3006	if ($CHANNEL{$channel}) {
		3007	$channel = $CHANNEL{$channel};
		3008
		3009	$self->ext_msg (channel_info => $channel);
		3010	$channel = $channel->{id};
		3011
		3012	} elsif (ref $channel) {
		3013	# send meta info to client, if not yet sent
		3014	unless (exists $self->{channel}{$channel->{id}}) {
		3015	$self->{channel}{$channel->{id}} = $channel;
		3016	$self->ext_msg (channel_info => $channel);
		3017	}
		3018
		3019	$channel = $channel->{id};
		3020	}
		3021
		3022	return unless @extra || length $msg;
		3023
		3024	# default colour, mask it out
		3025	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3026	if $color & cf::NDI_DEF;
		3027
		3028	my $pkt = "msg "
		3029	. $self->{json_coder}->encode (
		3030	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3031	);
		3032
		3033	$self->send_big_packet ($pkt);
		3034	}
		3035
		3036	=item $client->ext_msg ($type, @msg)
		3037
		3038	Sends an ext event to the client.
		3039
		3040	=cut
		3041
		3042	sub cf::client::ext_msg($$@) {
		3043	my ($self, $type, @msg) = @_;
		3044
		3045	if ($self->extcmd == 2) {
		3046	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3047	} elsif ($self->extcmd == 1) { # TODO: remove
		3048	push @msg, msgtype => "event_$type";
		3049	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3050	}
		3051	}
		3052
		3053	=item $client->ext_reply ($msgid, @msg)
		3054
		3055	Sends an ext reply to the client.
		3056
		3057	=cut
		3058
		3059	sub cf::client::ext_reply($$@) {
		3060	my ($self, $id, @msg) = @_;
		3061
		3062	if ($self->extcmd == 2) {
		3063	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3064	} elsif ($self->extcmd == 1) {
		3065	#TODO: version 1, remove
		3066	unshift @msg, msgtype => "reply", msgid => $id;
		3067	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3068	}
		3069	}
1986		3070
1987	=item $success = $client->query ($flags, "text", \&cb)	3071	=item $success = $client->query ($flags, "text", \&cb)
1988		3072
1989	Queues a query to the client, calling the given callback with	3073	Queues a query to the client, calling the given callback with
1990	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3074	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1991	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1992		3076
1993	Queries can fail, so check the return code. Or don't, as queries will become	3077	Queries can fail, so check the return code. Or don't, as queries will
1994	reliable at some point in the future.	3078	become reliable at some point in the future.
1995		3079
1996	=cut	3080	=cut
1997		3081
1998	sub cf::client::query {	3082	sub cf::client::query {
1999	my ($self, $flags, $text, $cb) = @_;	3083	my ($self, $flags, $text, $cb) = @_;
…		…
2007	utf8::encode $text;	3091	utf8::encode $text;
2008	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2009		3093
2010	$self->send_packet ($self->{query_queue}[0][0])	3094	$self->send_packet ($self->{query_queue}[0][0])
2011	if @{ $self->{query_queue} } == 1;	3095	if @{ $self->{query_queue} } == 1;
		3096
		3097	1
2012	}	3098	}
2013		3099
2014	cf::client->attach (	3100	cf::client->attach (
		3101	on_connect => sub {
		3102	my ($ns) = @_;
		3103
		3104	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3105	},
2015	on_reply => sub {	3106	on_reply => sub {
2016	my ($ns, $msg) = @_;	3107	my ($ns, $msg) = @_;
2017		3108
2018	# this weird shuffling is so that direct followup queries	3109	# this weird shuffling is so that direct followup queries
2019	# get handled first	3110	# get handled first
…		…
2031	} else {	3122	} else {
2032	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3123	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2033	}	3124	}
2034	}	3125	}
2035	},	3126	},
		3127	on_exticmd => sub {
		3128	my ($ns, $buf) = @_;
		3129
		3130	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3131
		3132	if (ref $msg) {
		3133	my ($type, $reply, @payload) =
		3134	"ARRAY" eq ref $msg
		3135	? @$msg
		3136	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3137
		3138	my @reply;
		3139
		3140	if (my $cb = $EXTICMD{$type}) {
		3141	@reply = $cb->($ns, @payload);
		3142	}
		3143
		3144	$ns->ext_reply ($reply, @reply)
		3145	if $reply;
		3146
		3147	} else {
		3148	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3149	}
		3150
		3151	cf::override;
		3152	},
2036	);	3153	);
2037		3154
2038	=item $client->async (\&cb)	3155	=item $client->async (\&cb)
2039		3156
2040	Create a new coroutine, running the specified callback. The coroutine will	3157	Create a new coroutine, running the specified callback. The coroutine will
…		…
2056		3173
2057	$coro	3174	$coro
2058	}	3175	}
2059		3176
2060	cf::client->attach (	3177	cf::client->attach (
2061	on_destroy => sub {	3178	on_client_destroy => sub {
2062	my ($ns) = @_;	3179	my ($ns) = @_;
2063		3180
2064	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3181	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2065	},	3182	},
2066	);	3183	);
…		…
2081	our $safe = new Safe "safe";	3198	our $safe = new Safe "safe";
2082	our $safe_hole = new Safe::Hole;	3199	our $safe_hole = new Safe::Hole;
2083		3200
2084	$SIG{FPE} = 'IGNORE';	3201	$SIG{FPE} = 'IGNORE';
2085		3202
2086	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3203	$safe->permit_only (Opcode::opset qw(
		3204	:base_core :base_mem :base_orig :base_math :base_loop
		3205	grepstart grepwhile mapstart mapwhile
		3206	sort time
		3207	));
2087		3208
2088	# here we export the classes and methods available to script code	3209	# here we export the classes and methods available to script code
2089		3210
2090	=pod	3211	=pod
2091		3212
2092	The following fucntions and emthods are available within a safe environment:	3213	The following functions and methods are available within a safe environment:
2093		3214
2094	cf::object contr pay_amount pay_player map	3215	cf::object
		3216	contr pay_amount pay_player map x y force_find force_add destroy
		3217	insert remove name archname title slaying race decrease split
		3218	value
		3219
2095	cf::object::player player	3220	cf::object::player
2096	cf::player peaceful	3221	player
2097	cf::map trigger	3222
		3223	cf::player
		3224	peaceful
		3225
		3226	cf::map
		3227	trigger
2098		3228
2099	=cut	3229	=cut
2100		3230
2101	for (	3231	for (
2102	["cf::object" => qw(contr pay_amount pay_player map)],	3232	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3233	insert remove inv nrof name archname title slaying race
		3234	decrease split destroy change_exp value msg lore send_msg)],
2103	["cf::object::player" => qw(player)],	3235	["cf::object::player" => qw(player)],
2104	["cf::player" => qw(peaceful)],	3236	["cf::player" => qw(peaceful send_msg)],
2105	["cf::map" => qw(trigger)],	3237	["cf::map" => qw(trigger)],
2106	) {	3238	) {
2107	no strict 'refs';	3239	no strict 'refs';
2108	my ($pkg, @funs) = @$_;	3240	my ($pkg, @funs) = @$_;
2109	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3241	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2127		3259
2128	my $qcode = $code;	3260	my $qcode = $code;
2129	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3261	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2130	$qcode =~ s/\n/\\n/g;	3262	$qcode =~ s/\n/\\n/g;
2131		3263
		3264	%vars = (_dummy => 0) unless %vars;
		3265
		3266	my @res;
2132	local $_;	3267	local $_;
2133	local @safe::cf::_safe_eval_args = values %vars;
2134		3268
2135	my $eval =	3269	my $eval =
2136	"do {\n"	3270	"do {\n"
2137	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3271	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2138	. "#line 0 \"{$qcode}\"\n"	3272	. "#line 0 \"{$qcode}\"\n"
2139	. $code	3273	. $code
2140	. "\n}"	3274	. "\n}"
2141	;	3275	;
2142		3276
		3277	if ($CFG{safe_eval}) {
2143	sub_generation_inc;	3278	sub_generation_inc;
		3279	local @safe::cf::_safe_eval_args = values %vars;
2144	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3280	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2145	sub_generation_inc;	3281	sub_generation_inc;
		3282	} else {
		3283	local @cf::_safe_eval_args = values %vars;
		3284	@res = wantarray ? eval eval : scalar eval $eval;
		3285	}
2146		3286
2147	if ($@) {	3287	if ($@) {
2148	warn "$@";	3288	warn "$@";
2149	warn "while executing safe code '$code'\n";	3289	warn "while executing safe code '$code'\n";
2150	warn "with arguments " . (join " ", %vars) . "\n";	3290	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2169	=cut	3309	=cut
2170		3310
2171	sub register_script_function {	3311	sub register_script_function {
2172	my ($fun, $cb) = @_;	3312	my ($fun, $cb) = @_;
2173		3313
2174	no strict 'refs';	3314	$fun = "safe::$fun" if $CFG{safe_eval};
2175	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3315	*$fun = $safe_hole->wrap ($cb);
2176	}	3316	}
2177		3317
2178	=back	3318	=back
2179		3319
2180	=cut	3320	=cut
2181
2182	#############################################################################
2183
2184	=head2 EXTENSION DATABASE SUPPORT
2185
2186	Crossfire maintains a very simple database for extension use. It can
2187	currently store anything that can be serialised using Storable, which
2188	excludes objects.
2189
2190	The parameter C<$family> should best start with the name of the extension
2191	using it, it should be unique.
2192
2193	=over 4
2194
2195	=item $value = cf::db_get $family => $key
2196
2197	Returns a single value from the database.
2198
2199	=item cf::db_put $family => $key => $value
2200
2201	Stores the given C<$value> in the family.
2202
2203	=cut
2204
2205	our $DB;
2206
2207	sub db_init {
2208	unless ($DB) {
2209	$DB = BDB::db_create $DB_ENV;
2210
2211	cf::sync_job {
2212	eval {
2213	$DB->set_flags (BDB::CHKSUM);
2214
2215	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2216	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2217	cf::cleanup "db_open(db): $!" if $!;
2218	};
2219	cf::cleanup "db_open(db): $@" if $@;
2220	};
2221
2222	my $path = cf::localdir . "/database.pst";
2223	if (stat $path) {
2224	cf::sync_job {
2225	my $pst = Storable::retrieve $path;
2226
2227	cf::db_put (board => data => $pst->{board});
2228	cf::db_put (guildrules => data => $pst->{guildrules});
2229	cf::db_put (rent => balance => $pst->{rent}{balance});
2230	BDB::db_env_txn_checkpoint $DB_ENV;
2231
2232	unlink $path;
2233	};
2234	}
2235	}
2236	}
2237
2238	sub db_get($$) {
2239	my $key = "$_[0]/$_[1]";
2240
2241	cf::sync_job {
2242	BDB::db_get $DB, undef, $key, my $data;
2243
2244	$! ? ()
2245	: Compress::LZF::sthaw $data
2246	}
2247	}
2248
2249	sub db_put($$$) {
2250	BDB::dbreq_pri 4;
2251	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2252	}
2253		3321
2254	#############################################################################	3322	#############################################################################
2255	# the server's init and main functions	3323	# the server's init and main functions
2256		3324
2257	sub init_resources {	3325	sub load_facedata($) {
2258	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3326	my ($path) = @_;
		3327
		3328	# HACK to clear player env face cache, we need some signal framework
		3329	# for this (global event?)
		3330	%ext::player_env::MUSIC_FACE_CACHE = ();
		3331
		3332	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3333
		3334	warn "loading facedata from $path\n";
		3335
		3336	my $facedata;
		3337	0 < aio_load $path, $facedata
		3338	or die "$path: $!";
		3339
		3340	$facedata = Coro::Storable::thaw $facedata;
		3341
		3342	$facedata->{version} == 2
		3343	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3344
		3345	# patch in the exptable
		3346	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3347	$facedata->{resource}{"res/exp_table"} = {
		3348	type => FT_RSRC,
		3349	data => $exp_table,
		3350	hash => (Digest::MD5::md5 $exp_table),
		3351	};
		3352	cf::cede_to_tick;
		3353
		3354	{
		3355	my $faces = $facedata->{faceinfo};
		3356
		3357	while (my ($face, $info) = each %$faces) {
		3358	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3359
		3360	cf::face::set_visibility $idx, $info->{visibility};
		3361	cf::face::set_magicmap $idx, $info->{magicmap};
		3362	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3363	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3364
		3365	cf::cede_to_tick;
		3366	}
		3367
		3368	while (my ($face, $info) = each %$faces) {
		3369	next unless $info->{smooth};
		3370
		3371	my $idx = cf::face::find $face
		3372	or next;
		3373
		3374	if (my $smooth = cf::face::find $info->{smooth}) {
		3375	cf::face::set_smooth $idx, $smooth;
		3376	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3377	} else {
		3378	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3379	}
		3380
		3381	cf::cede_to_tick;
		3382	}
		3383	}
		3384
		3385	{
		3386	my $anims = $facedata->{animinfo};
		3387
		3388	while (my ($anim, $info) = each %$anims) {
		3389	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3390	cf::cede_to_tick;
		3391	}
		3392
		3393	cf::anim::invalidate_all; # d'oh
		3394	}
		3395
		3396	{
		3397	my $res = $facedata->{resource};
		3398
		3399	while (my ($name, $info) = each %$res) {
		3400	if (defined $info->{type}) {
		3401	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3402
		3403	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3404	cf::face::set_type $idx, $info->{type};
		3405	} else {
		3406	$RESOURCE{$name} = $info;
		3407	}
		3408
		3409	cf::cede_to_tick;
		3410	}
		3411	}
		3412
		3413	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3414
		3415	1
		3416	}
		3417
		3418	cf::global->attach (on_resource_update => sub {
		3419	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3420	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3421
		3422	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3423	my $sound = $soundconf->{compat}[$_]
		3424	or next;
		3425
		3426	my $face = cf::face::find "sound/$sound->[1]";
		3427	cf::sound::set $sound->[0] => $face;
		3428	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3429	}
		3430
		3431	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3432	my $face = cf::face::find "sound/$v";
		3433	cf::sound::set $k => $face;
		3434	}
		3435	}
		3436	});
		3437
		3438	register_exticmd fx_want => sub {
		3439	my ($ns, $want) = @_;
		3440
		3441	while (my ($k, $v) = each %$want) {
		3442	$ns->fx_want ($k, $v);
		3443	}
		3444	};
		3445
		3446	sub load_resource_file($) {
		3447	my $guard = lock_acquire "load_resource_file";
		3448
		3449	my $status = load_resource_file_ $_[0];
		3450	get_slot 0.1, 100;
		3451	cf::arch::commit_load;
		3452
		3453	$status
		3454	}
		3455
		3456	sub reload_regions {
		3457	# HACK to clear player env face cache, we need some signal framework
		3458	# for this (global event?)
		3459	%ext::player_env::MUSIC_FACE_CACHE = ();
		3460
		3461	load_resource_file "$MAPDIR/regions"
2259	or die "unable to load regions file\n";#d#	3462	or die "unable to load regions file\n";
2260	}
2261		3463
2262	sub cfg_load {	3464	for (cf::region::list) {
		3465	$_->{match} = qr/$_->{match}/
		3466	if exists $_->{match};
		3467	}
		3468	}
		3469
		3470	sub reload_facedata {
		3471	load_facedata "$DATADIR/facedata"
		3472	or die "unable to load facedata\n";
		3473	}
		3474
		3475	sub reload_archetypes {
		3476	load_resource_file "$DATADIR/archetypes"
		3477	or die "unable to load archetypes\n";
		3478	}
		3479
		3480	sub reload_treasures {
		3481	load_resource_file "$DATADIR/treasures"
		3482	or die "unable to load treasurelists\n";
		3483	}
		3484
		3485	sub reload_resources {
		3486	warn "reloading resource files...\n";
		3487
		3488	reload_facedata;
		3489	reload_archetypes;
		3490	reload_regions;
		3491	reload_treasures;
		3492
		3493	warn "finished reloading resource files\n";
		3494	}
		3495
		3496	sub reload_config {
		3497	warn "reloading config file...\n";
		3498
2263	open my $fh, "<:utf8", cf::confdir . "/config"	3499	open my $fh, "<:utf8", "$CONFDIR/config"
2264	or return;	3500	or return;
2265		3501
2266	local $/;	3502	local $/;
2267	*CFG = YAML::Syck::Load <$fh>;	3503	*CFG = YAML::XS::Load scalar <$fh>;
2268		3504
2269	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3505	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2270		3506
2271	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3507	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2272	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3508	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2276	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3512	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2277	and die "WARNING: m(un)lockall failed: $!\n";	3513	and die "WARNING: m(un)lockall failed: $!\n";
2278	};	3514	};
2279	warn $@ if $@;	3515	warn $@ if $@;
2280	}	3516	}
2281	}
2282		3517
2283	sub init {	3518	warn "finished reloading resource files\n";
2284	init_resources;	3519	}
		3520
		3521	sub pidfile() {
		3522	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3523	or die "$PIDFILE: $!";
		3524	flock $fh, &Fcntl::LOCK_EX
		3525	or die "$PIDFILE: flock: $!";
		3526	$fh
		3527	}
		3528
		3529	# make sure only one server instance is running at any one time
		3530	sub atomic {
		3531	my $fh = pidfile;
		3532
		3533	my $pid = <$fh>;
		3534	kill 9, $pid if $pid > 0;
		3535
		3536	seek $fh, 0, 0;
		3537	print $fh $$;
		3538	}
		3539
		3540	sub main_loop {
		3541	warn "EV::loop starting\n";
		3542	if (1) {
		3543	EV::loop;
		3544	}
		3545	warn "EV::loop returned\n";
		3546	goto &main_loop unless $REALLY_UNLOOP;
2285	}	3547	}
2286		3548
2287	sub main {	3549	sub main {
		3550	cf::init_globals; # initialise logging
		3551
		3552	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3553	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3554	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3555	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3556
		3557	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3558
2288	# we must not ever block the main coroutine	3559	# we must not ever block the main coroutine
2289	local $Coro::idle = sub {	3560	local $Coro::idle = sub {
2290	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3561	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2291	(async {	3562	(async {
2292	Event::one_event;	3563	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3564	EV::loop EV::LOOP_ONESHOT;
2293	})->prio (Coro::PRIO_MAX);	3565	})->prio (Coro::PRIO_MAX);
2294	};	3566	};
2295		3567
2296	cfg_load;	3568	evthread_start IO::AIO::poll_fileno;
		3569
		3570	cf::sync_job {
		3571	cf::init_experience;
		3572	cf::init_anim;
		3573	cf::init_attackmess;
		3574	cf::init_dynamic;
		3575
		3576	cf::load_settings;
		3577	cf::load_materials;
		3578
		3579	reload_resources;
		3580	reload_config;
2297	db_init;	3581	db_init;
		3582
		3583	cf::init_uuid;
		3584	cf::init_signals;
		3585	cf::init_skills;
		3586
		3587	cf::init_beforeplay;
		3588
		3589	atomic;
		3590
2298	load_extensions;	3591	load_extensions;
2299		3592
2300	$TICK_WATCHER->start;	3593	utime time, time, $RUNTIMEFILE;
2301	Event::loop;	3594
		3595	# no (long-running) fork's whatsoever before this point(!)
		3596	use POSIX ();
		3597	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3598
		3599	(pop @POST_INIT)->(0) while @POST_INIT;
		3600	};
		3601
		3602	cf::object::thawer::errors_are_fatal 0;
		3603	warn "parse errors in files are no longer fatal from this point on.\n";
		3604
		3605	main_loop;
2302	}	3606	}
2303		3607
2304	#############################################################################	3608	#############################################################################
2305	# initialisation and cleanup	3609	# initialisation and cleanup
2306		3610
2307	# install some emergency cleanup handlers	3611	# install some emergency cleanup handlers
2308	BEGIN {	3612	BEGIN {
		3613	our %SIGWATCHER = ();
2309	for my $signal (qw(INT HUP TERM)) {	3614	for my $signal (qw(INT HUP TERM)) {
2310	Event->signal (	3615	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2311	reentrant => 0,
2312	data => WF_AUTOCANCEL,
2313	signal => $signal,
2314	prio => 0,
2315	cb => sub {
2316	cf::cleanup "SIG$signal";	3616	cf::cleanup "SIG$signal";
2317	},
2318	);	3617	};
		3618	}
		3619	}
		3620
		3621	sub write_runtime_sync {
		3622	my $t0 = AE::time;
		3623
		3624	# first touch the runtime file to show we are still running:
		3625	# the fsync below can take a very very long time.
		3626
		3627	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3628
		3629	my $guard = cf::lock_acquire "write_runtime";
		3630
		3631	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3632	or return;
		3633
		3634	my $value = $cf::RUNTIME + 90 + 10;
		3635	# 10 is the runtime save interval, for a monotonic clock
		3636	# 60 allows for the watchdog to kill the server.
		3637
		3638	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3639	and return;
		3640
		3641	# always fsync - this file is important
		3642	aio_fsync $fh
		3643	and return;
		3644
		3645	# touch it again to show we are up-to-date
		3646	aio_utime $fh, undef, undef;
		3647
		3648	close $fh
		3649	or return;
		3650
		3651	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3652	and return;
		3653
		3654	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3655
2319	}	3656	1
		3657	}
		3658
		3659	our $uuid_lock;
		3660	our $uuid_skip;
		3661
		3662	sub write_uuid_sync($) {
		3663	$uuid_skip ||= $_[0];
		3664
		3665	return if $uuid_lock;
		3666	local $uuid_lock = 1;
		3667
		3668	my $uuid = "$LOCALDIR/uuid";
		3669
		3670	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3671	or return;
		3672
		3673	my $value = uuid_seq uuid_cur;
		3674
		3675	unless ($value) {
		3676	warn "cowardly refusing to write zero uuid value!\n";
		3677	return;
		3678	}
		3679
		3680	my $value = uuid_str $value + $uuid_skip;
		3681	$uuid_skip = 0;
		3682
		3683	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3684	and return;
		3685
		3686	# always fsync - this file is important
		3687	aio_fsync $fh
		3688	and return;
		3689
		3690	close $fh
		3691	or return;
		3692
		3693	aio_rename "$uuid~", $uuid
		3694	and return;
		3695
		3696	warn "uuid file written ($value).\n";
		3697
		3698	1
		3699
		3700	}
		3701
		3702	sub write_uuid($$) {
		3703	my ($skip, $sync) = @_;
		3704
		3705	$sync ? write_uuid_sync $skip
		3706	: async { write_uuid_sync $skip };
2320	}	3707	}
2321		3708
2322	sub emergency_save() {	3709	sub emergency_save() {
2323	my $freeze_guard = cf::freeze_mainloop;	3710	my $freeze_guard = cf::freeze_mainloop;
2324		3711
2325	warn "enter emergency perl save\n";	3712	warn "emergency_perl_save: enter\n";
2326		3713
2327	cf::sync_job {	3714	cf::sync_job {
		3715	# this is a trade-off: we want to be very quick here, so
		3716	# save all maps without fsync, and later call a global sync
		3717	# (which in turn might be very very slow)
		3718	local $USE_FSYNC = 0;
		3719
2328	# use a peculiar iteration method to avoid tripping on perl	3720	# use a peculiar iteration method to avoid tripping on perl
2329	# refcount bugs in for. also avoids problems with players	3721	# refcount bugs in for. also avoids problems with players
2330	# and maps saved/destroyed asynchronously.	3722	# and maps saved/destroyed asynchronously.
2331	warn "begin emergency player save\n";	3723	warn "emergency_perl_save: begin player save\n";
2332	for my $login (keys %cf::PLAYER) {	3724	for my $login (keys %cf::PLAYER) {
2333	my $pl = $cf::PLAYER{$login} or next;	3725	my $pl = $cf::PLAYER{$login} or next;
2334	$pl->valid or next;	3726	$pl->valid or next;
		3727	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2335	$pl->save;	3728	$pl->save;
2336	}	3729	}
2337	warn "end emergency player save\n";	3730	warn "emergency_perl_save: end player save\n";
2338		3731
2339	warn "begin emergency map save\n";	3732	warn "emergency_perl_save: begin map save\n";
2340	for my $path (keys %cf::MAP) {	3733	for my $path (keys %cf::MAP) {
2341	my $map = $cf::MAP{$path} or next;	3734	my $map = $cf::MAP{$path} or next;
2342	$map->valid or next;	3735	$map->valid or next;
2343	$map->save;	3736	$map->save;
2344	}	3737	}
2345	warn "end emergency map save\n";	3738	warn "emergency_perl_save: end map save\n";
2346		3739
2347	warn "begin emergency database checkpoint\n";	3740	warn "emergency_perl_save: begin database checkpoint\n";
2348	BDB::db_env_txn_checkpoint $DB_ENV;	3741	BDB::db_env_txn_checkpoint $DB_ENV;
2349	warn "end emergency database checkpoint\n";	3742	warn "emergency_perl_save: end database checkpoint\n";
		3743
		3744	warn "emergency_perl_save: begin write uuid\n";
		3745	write_uuid_sync 1;
		3746	warn "emergency_perl_save: end write uuid\n";
2350	};	3747	};
2351		3748
		3749	warn "emergency_perl_save: starting sync()\n";
		3750	IO::AIO::aio_sync sub {
		3751	warn "emergency_perl_save: finished sync()\n";
		3752	};
		3753
2352	warn "leave emergency perl save\n";	3754	warn "emergency_perl_save: leave\n";
2353	}	3755	}
2354		3756
2355	sub post_cleanup {	3757	sub post_cleanup {
2356	my ($make_core) = @_;	3758	my ($make_core) = @_;
2357		3759
2358	warn Carp::longmess "post_cleanup backtrace"	3760	warn Carp::longmess "post_cleanup backtrace"
2359	if $make_core;	3761	if $make_core;
2360	}
2361		3762
		3763	my $fh = pidfile;
		3764	unlink $PIDFILE if <$fh> == $$;
		3765	}
		3766
		3767	# a safer delete_package, copied from Symbol
		3768	sub clear_package($) {
		3769	my $pkg = shift;
		3770
		3771	# expand to full symbol table name if needed
		3772	unless ($pkg =~ /^main::.*::$/) {
		3773	$pkg = "main$pkg" if $pkg =~ /^::/;
		3774	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3775	$pkg .= '::' unless $pkg =~ /::$/;
		3776	}
		3777
		3778	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3779	my $stem_symtab = *{$stem}{HASH};
		3780
		3781	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3782	or return;
		3783
		3784	# clear all symbols
		3785	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3786	for my $name (keys %$leaf_symtab) {
		3787	_gv_clear *{"$pkg$name"};
		3788	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3789	}
		3790	}
		3791
2362	sub reload() {	3792	sub do_reload_perl() {
2363	# can/must only be called in main	3793	# can/must only be called in main
2364	if ($Coro::current != $Coro::main) {	3794	if ($Coro::current != $Coro::main) {
2365	warn "can only reload from main coroutine";	3795	warn "can only reload from main coroutine";
2366	return;	3796	return;
2367	}	3797	}
2368		3798
		3799	return if $RELOAD++;
		3800
		3801	my $t1 = AE::time;
		3802
		3803	while ($RELOAD) {
2369	warn "reloading...";	3804	warn "reloading...";
2370		3805
2371	warn "entering sync_job";	3806	warn "entering sync_job";
2372		3807
2373	cf::sync_job {	3808	cf::sync_job {
2374	cf::write_runtime; # external watchdog should not bark	3809	cf::write_runtime_sync; # external watchdog should not bark
2375	cf::emergency_save;	3810	cf::emergency_save;
2376	cf::write_runtime; # external watchdog should not bark	3811	cf::write_runtime_sync; # external watchdog should not bark
2377		3812
2378	warn "syncing database to disk";	3813	warn "syncing database to disk";
2379	BDB::db_env_txn_checkpoint $DB_ENV;	3814	BDB::db_env_txn_checkpoint $DB_ENV;
2380		3815
2381	# if anything goes wrong in here, we should simply crash as we already saved	3816	# if anything goes wrong in here, we should simply crash as we already saved
2382		3817
2383	warn "cancelling all WF_AUTOCANCEL watchers";
2384	for (Event::all_watchers) {
2385	$_->cancel if $_->data & WF_AUTOCANCEL;
2386	}
2387
2388	warn "flushing outstanding aio requests";	3818	warn "flushing outstanding aio requests";
2389	for (;;) {
2390	BDB::flush;
2391	IO::AIO::flush;
2392	Coro::cede;
2393	last unless IO::AIO::nreqs || BDB::nreqs;	3819	while (IO::AIO::nreqs || BDB::nreqs) {
2394	warn "iterate...";	3820	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2395	}
2396
2397	warn "cancelling all extension coros";
2398	$_->cancel for values %EXT_CORO;
2399	%EXT_CORO = ();
2400
2401	warn "removing commands";
2402	%COMMAND = ();
2403
2404	warn "removing ext commands";
2405	%EXTCMD = ();
2406
2407	warn "unloading/nuking all extensions";
2408	for my $pkg (@EXTS) {
2409	warn "... unloading $pkg";
2410
2411	if (my $cb = $pkg->can ("unload")) {
2412	eval {
2413	$cb->($pkg);
2414	1
2415	} or warn "$pkg unloaded, but with errors: $@";
2416	}	3821	}
2417		3822
2418	warn "... nuking $pkg";	3823	warn "cancelling all extension coros";
2419	Symbol::delete_package $pkg;	3824	$_->cancel for values %EXT_CORO;
2420	}	3825	%EXT_CORO = ();
2421		3826
2422	warn "unloading all perl modules loaded from $LIBDIR";	3827	warn "removing commands";
2423	while (my ($k, $v) = each %INC) {	3828	%COMMAND = ();
2424	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2425		3829
		3830	warn "removing ext/exti commands";
		3831	%EXTCMD = ();
		3832	%EXTICMD = ();
		3833
		3834	warn "unloading/nuking all extensions";
		3835	for my $pkg (@EXTS) {
2426	warn "... unloading $k";	3836	warn "... unloading $pkg";
2427	delete $INC{$k};
2428		3837
2429	$k =~ s/\.pm$//;
2430	$k =~ s/\//::/g;
2431
2432	if (my $cb = $k->can ("unload_module")) {	3838	if (my $cb = $pkg->can ("unload")) {
		3839	eval {
2433	$cb->();	3840	$cb->($pkg);
		3841	1
		3842	} or warn "$pkg unloaded, but with errors: $@";
		3843	}
		3844
		3845	warn "... clearing $pkg";
		3846	clear_package $pkg;
2434	}	3847	}
2435		3848
2436	Symbol::delete_package $k;	3849	warn "unloading all perl modules loaded from $LIBDIR";
		3850	while (my ($k, $v) = each %INC) {
		3851	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3852
		3853	warn "... unloading $k";
		3854	delete $INC{$k};
		3855
		3856	$k =~ s/\.pm$//;
		3857	$k =~ s/\//::/g;
		3858
		3859	if (my $cb = $k->can ("unload_module")) {
		3860	$cb->();
		3861	}
		3862
		3863	clear_package $k;
2437	}	3864	}
2438		3865
2439	warn "getting rid of safe::, as good as possible";	3866	warn "getting rid of safe::, as good as possible";
2440	Symbol::delete_package "safe::$_"	3867	clear_package "safe::$_"
2441	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3868	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2442		3869
2443	warn "unloading cf.pm \"a bit\"";	3870	warn "unloading cf.pm \"a bit\"";
2444	delete $INC{"cf.pm"};	3871	delete $INC{"cf.pm"};
		3872	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2445		3873
2446	# don't, removes xs symbols, too,	3874	# don't, removes xs symbols, too,
2447	# and global variables created in xs	3875	# and global variables created in xs
2448	#Symbol::delete_package __PACKAGE__;	3876	#clear_package __PACKAGE__;
2449		3877
2450	warn "unload completed, starting to reload now";	3878	warn "unload completed, starting to reload now";
2451		3879
2452	warn "reloading cf.pm";	3880	warn "reloading cf.pm";
2453	require cf;	3881	require cf;
2454	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3882	cf::_connect_to_perl_1;
2455		3883
2456	warn "loading config and database again";	3884	warn "loading config and database again";
2457	cf::cfg_load;	3885	cf::reload_config;
2458		3886
2459	warn "loading extensions";	3887	warn "loading extensions";
2460	cf::load_extensions;	3888	cf::load_extensions;
2461		3889
		3890	if ($REATTACH_ON_RELOAD) {
2462	warn "reattaching attachments to objects/players";	3891	warn "reattaching attachments to objects/players";
2463	_global_reattach;	3892	_global_reattach; # objects, sockets
2464	warn "reattaching attachments to maps";	3893	warn "reattaching attachments to maps";
2465	reattach $_ for values %MAP;	3894	reattach $_ for values %MAP;
		3895	warn "reattaching attachments to players";
		3896	reattach $_ for values %PLAYER;
		3897	}
2466		3898
2467	warn "loading reloadable resources";	3899	warn "running post_init jobs";
2468	init_resources;	3900	(pop @POST_INIT)->(1) while @POST_INIT;
2469		3901
2470	warn "leaving sync_job";	3902	warn "leaving sync_job";
2471		3903
2472	1	3904	1
2473	} or do {	3905	} or do {
2474	warn $@;	3906	warn $@;
2475	warn "error while reloading, exiting.";	3907	cf::cleanup "error while reloading, exiting.";
2476	exit 1;	3908	};
		3909
		3910	warn "reloaded";
		3911	--$RELOAD;
		3912	}
		3913
		3914	$t1 = AE::time - $t1;
		3915	warn "reload completed in ${t1}s\n";
		3916	};
		3917
		3918	our $RELOAD_WATCHER; # used only during reload
		3919
		3920	sub reload_perl() {
		3921	# doing reload synchronously and two reloads happen back-to-back,
		3922	# coro crashes during coro_state_free->destroy here.
		3923
		3924	$RELOAD_WATCHER ||= cf::async {
		3925	Coro::AIO::aio_wait cache_extensions;
		3926
		3927	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3928	do_reload_perl;
		3929	undef $RELOAD_WATCHER;
		3930	};
2477	};	3931	};
2478		3932	}
2479	warn "reloaded";
2480	};
2481
2482	our $RELOAD_WATCHER; # used only during reload
2483		3933
2484	register_command "reload" => sub {	3934	register_command "reload" => sub {
2485	my ($who, $arg) = @_;	3935	my ($who, $arg) = @_;
2486		3936
2487	if ($who->flag (FLAG_WIZ)) {	3937	if ($who->flag (FLAG_WIZ)) {
2488	$who->message ("reloading server.");	3938	$who->message ("reloading server.");
2489		3939	async {
2490	# doing reload synchronously and two reloads happen back-to-back,	3940	$Coro::current->{desc} = "perl_reload";
2491	# coro crashes during coro_state_free->destroy here.
2492
2493	$RELOAD_WATCHER ||= Event->timer (
2494	reentrant => 0,
2495	after => 0,
2496	data => WF_AUTOCANCEL,
2497	cb => sub {
2498	reload;	3941	reload_perl;
2499	undef $RELOAD_WATCHER;
2500	},
2501	);	3942	};
2502	}	3943	}
2503	};	3944	};
2504		3945
2505	unshift @INC, $LIBDIR;	3946	unshift @INC, $LIBDIR;
2506		3947
2507	my $bug_warning = 0;	3948	my $bug_warning = 0;
2508		3949
2509	$TICK_WATCHER = Event->timer (	3950	our @WAIT_FOR_TICK;
2510	reentrant => 0,	3951	our @WAIT_FOR_TICK_BEGIN;
2511	parked => 1,	3952
2512	prio => 0,	3953	sub wait_for_tick {
2513	at => $NEXT_TICK || $TICK,	3954	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2514	data => WF_AUTOCANCEL,	3955
2515	cb => sub {	3956	my $signal = new Coro::Signal;
		3957	push @WAIT_FOR_TICK, $signal;
		3958	$signal->wait;
		3959	}
		3960
		3961	sub wait_for_tick_begin {
		3962	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3963
		3964	my $signal = new Coro::Signal;
		3965	push @WAIT_FOR_TICK_BEGIN, $signal;
		3966	$signal->wait;
		3967	}
		3968
		3969	sub tick {
2516	if ($Coro::current != $Coro::main) {	3970	if ($Coro::current != $Coro::main) {
2517	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3971	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2518	unless ++$bug_warning > 10;	3972	unless ++$bug_warning > 10;
2519	return;	3973	return;
2520	}	3974	}
2521		3975
2522	$NOW = Event::time;
2523
2524	cf::server_tick; # one server iteration	3976	cf::server_tick; # one server iteration
2525	$RUNTIME += $TICK;
2526	$NEXT_TICK += $TICK;
2527		3977
		3978	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		3979
2528	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3980	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2529	$NEXT_RUNTIME_WRITE = $NOW + 10;	3981	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2530	Coro::async_pool {	3982	Coro::async_pool {
		3983	$Coro::current->{desc} = "runtime saver";
2531	write_runtime	3984	write_runtime_sync
2532	or warn "ERROR: unable to write runtime file: $!";	3985	or warn "ERROR: unable to write runtime file: $!";
2533	};
2534	}	3986	};
2535
2536	$WAIT_FOR_TICK->broadcast;
2537	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2538
2539	# my $AFTER = Event::time;
2540	# warn $AFTER - $NOW;#d#
2541
2542	# if we are delayed by four ticks or more, skip them all
2543	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2544
2545	$TICK_WATCHER->at ($NEXT_TICK);
2546	$TICK_WATCHER->start;
2547	},	3987	}
2548	);	3988
		3989	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3990	$sig->send;
		3991	}
		3992	while (my $sig = shift @WAIT_FOR_TICK) {
		3993	$sig->send;
		3994	}
		3995
		3996	$LOAD = ($NOW - $TICK_START) / $TICK;
		3997	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3998
		3999	if (0) {
		4000	if ($NEXT_TICK) {
		4001	my $jitter = $TICK_START - $NEXT_TICK;
		4002	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4003	warn "jitter $JITTER\n";#d#
		4004	}
		4005	}
		4006	}
2549		4007
2550	{	4008	{
2551	BDB::max_poll_time $TICK * 0.1;	4009	# configure BDB
2552	$BDB_POLL_WATCHER = Event->io (	4010
2553	reentrant => 0,
2554	fd => BDB::poll_fileno,
2555	poll => 'r',
2556	prio => 0,
2557	data => WF_AUTOCANCEL,
2558	cb => \&BDB::poll_cb,
2559	);
2560	BDB::min_parallel 8;	4011	BDB::min_parallel 16;
2561		4012	BDB::max_poll_reqs $TICK * 0.1;
2562	BDB::set_sync_prepare {	4013	$AnyEvent::BDB::WATCHER->priority (1);
2563	my $status;
2564	my $current = $Coro::current;
2565	(
2566	sub {
2567	$status = $!;
2568	$current->ready; undef $current;
2569	},
2570	sub {
2571	Coro::schedule while defined $current;
2572	$! = $status;
2573	},
2574	)
2575	};
2576		4014
2577	unless ($DB_ENV) {	4015	unless ($DB_ENV) {
2578	$DB_ENV = BDB::db_env_create;	4016	$DB_ENV = BDB::db_env_create;
		4017	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4018	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4019	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4020	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4021	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2579		4022
2580	cf::sync_job {	4023	cf::sync_job {
2581	eval {	4024	eval {
2582	BDB::db_env_open	4025	BDB::db_env_open
2583	$DB_ENV,	4026	$DB_ENV,
2584	$BDB_ENV_DIR,	4027	$BDBDIR,
2585	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4028	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2586	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4029	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2587	0666;	4030	0666;
2588		4031
2589	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4032	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2590
2591	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2592	$DB_ENV->set_lk_detect;
2593	};	4033	};
2594		4034
2595	cf::cleanup "db_env_open(db): $@" if $@;	4035	cf::cleanup "db_env_open(db): $@" if $@;
2596	};	4036	};
2597	}	4037	}
		4038
		4039	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4040	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4041	};
		4042	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4043	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4044	};
		4045	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4046	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4047	};
2598	}	4048	}
2599		4049
2600	{	4050	{
		4051	# configure IO::AIO
		4052
2601	IO::AIO::min_parallel 8;	4053	IO::AIO::min_parallel 8;
2602
2603	undef $Coro::AIO::WATCHER;
2604	IO::AIO::max_poll_time $TICK * 0.1;	4054	IO::AIO::max_poll_time $TICK * 0.1;
2605	$AIO_POLL_WATCHER = Event->io (	4055	undef $AnyEvent::AIO::WATCHER;
2606	reentrant => 0,
2607	data => WF_AUTOCANCEL,
2608	fd => IO::AIO::poll_fileno,
2609	poll => 'r',
2610	prio => 6,
2611	cb => \&IO::AIO::poll_cb,
2612	);
2613	}	4056	}
		4057
		4058	my $_log_backtrace;
		4059
		4060	sub _log_backtrace {
		4061	my ($msg, @addr) = @_;
		4062
		4063	$msg =~ s/\n//;
		4064
		4065	# limit the # of concurrent backtraces
		4066	if ($_log_backtrace < 2) {
		4067	++$_log_backtrace;
		4068	my $perl_bt = Carp::longmess $msg;
		4069	async {
		4070	$Coro::current->{desc} = "abt $msg";
		4071
		4072	my @bt = fork_call {
		4073	@addr = map { sprintf "%x", $_ } @addr;
		4074	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4075	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4076	or die "addr2line: $!";
		4077
		4078	my @funcs;
		4079	my @res = <$fh>;
		4080	chomp for @res;
		4081	while (@res) {
		4082	my ($func, $line) = splice @res, 0, 2, ();
		4083	push @funcs, "[$func] $line";
		4084	}
		4085
		4086	@funcs
		4087	};
		4088
		4089	LOG llevInfo, "[ABT] $perl_bt\n";
		4090	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4091	LOG llevInfo, "[ABT] $_\n" for @bt;
		4092	--$_log_backtrace;
		4093	};
		4094	} else {
		4095	LOG llevInfo, "[ABT] $msg\n";
		4096	LOG llevInfo, "[ABT] [suppressed]\n";
		4097	}
		4098	}
		4099
		4100	# load additional modules
		4101	require "cf/$_.pm" for @EXTRA_MODULES;
		4102	cf::_connect_to_perl_2;
2614		4103
2615	END { cf::emergency_save }	4104	END { cf::emergency_save }
2616		4105
2617	1	4106	1
2618		4107

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