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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.259 by root, Sat Apr 21 17:46:39 2007 UTC vs.
Revision 1.513 by root, Mon Apr 12 05:22:38 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
14		38
		39	use Guard ();
15	use Coro 3.61 ();	40	use Coro ();
16	use Coro::State;	41	use Coro::State;
17	use Coro::Handle;	42	use Coro::Handle;
		43	use Coro::EV;
18	use Coro::Event;	44	use Coro::AnyEvent;
19	use Coro::Timer;	45	use Coro::Timer;
20	use Coro::Signal;	46	use Coro::Signal;
21	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
22	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
23	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
24		54
		55	use JSON::XS 2.01 ();
25	use BDB ();	56	use BDB ();
26	use Data::Dumper;	57	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	58	use Fcntl;
29	use YAML::Syck ();	59	use YAML::XS ();
30	use IO::AIO 2.32 ();	60	use IO::AIO ();
31	use Time::HiRes;	61	use Time::HiRes;
32	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
33		66
34	# configure various modules to our taste	67	# configure various modules to our taste
35	#	68	#
36	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	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
39		77
40	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
41		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		80
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
		94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
59		96
60	our $CONFDIR = confdir;	97	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	98	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	99	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	100	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	101	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	102	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	106	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	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;
71		115
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	116	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	118	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	119	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	123	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
82		127
83	our %CFG;	128	our %CFG;
84		129
85	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
87		133
88	our %PLAYER; # all users	134	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	135	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	136	our $LINK_MAP; # the special {link} map, which is always available
91		137
92	# 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 ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		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 $REALLY_UNLOOP; # never set to true, please :)
		150
95	binmode STDOUT;	151	binmode STDOUT;
96	binmode STDERR;	152	binmode STDERR;
97		153
98	# read virtual server time, if available	154	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	156	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
103	}	159	}
		160
		161	eval "sub TICK() { $TICK } 1" or die;
104		162
105	mkdir $_	163	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		165
108	our $EMERGENCY_POSITION;	166	our $EMERGENCY_POSITION;
109		167
110	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::"} };
111		180
112	#############################################################################	181	#############################################################################
113		182
114	=head2 GLOBAL VARIABLES	183	=head2 GLOBAL VARIABLES
115		184
…		…
139		208
140	=item $cf::TICK	209	=item $cf::TICK
141		210
142	The interval between server ticks, in seconds.	211	The interval between server ticks, in seconds.
143		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
144	=item %cf::CFG	223	=item %cf::CFG
145		224
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	225	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	226	from wherever your confdir points to.
148		227
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	228	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		229
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	230	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
152	returns directly I<after> the tick processing (and consequently, can only wake one process	231	returns directly I<after> the tick processing (and consequently, can only wake one process
153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	232	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
154		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.
		245
155	=back	246	=back
156		247
157	=cut	248	=cut
158		249
159	BEGIN {	250	$Coro::State::WARNHOOK = sub {
160	*CORE::GLOBAL::warn = sub {
161	my $msg = join "", @_;	251	my $msg = join "", @_;
162		252
163	$msg .= "\n"	253	$msg .= "\n"
164	unless $msg =~ /\n$/;	254	unless $msg =~ /\n$/;
165		255
166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	256	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		257
168	utf8::encode $msg;
169	LOG llevError, $msg;	258	LOG llevError, $msg;
170	};	259	};
171	}	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	};
172		274
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	275	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	276	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	277	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	278	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@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';
178	@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)
179		282
180	# 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
181	# within the Safe compartment.	284	# within the Safe compartment.
182	for my $pkg (qw(	285	for my $pkg (qw(
183	cf::global cf::attachable	286	cf::global cf::attachable
184	cf::object cf::object::player	287	cf::object cf::object::player
185	cf::client cf::player	288	cf::client cf::player
186	cf::arch cf::living	289	cf::arch cf::living
		290	cf::map cf::mapspace
187	cf::map cf::party cf::region	291	cf::party cf::region
188	)) {	292	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	293	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	294	}
192		295
193	$Event::DIED = sub {	296	$EV::DIED = sub {
194	warn "error in event callback: @_";	297	Carp::cluck "error in event callback: @_";
195	};	298	};
		299
		300	#############################################################################
196		301
197	=head2 UTILITY FUNCTIONS	302	=head2 UTILITY FUNCTIONS
198		303
199	=over 4	304	=over 4
200		305
…		…
219	$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;
220	$d	325	$d
221	} || "[unable to dump $_[0]: '$@']";	326	} || "[unable to dump $_[0]: '$@']";
222	}	327	}
223		328
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	329	=item $ref = cf::decode_json $json
227		330
228	Converts a JSON string into the corresponding perl data structure.	331	Converts a JSON string into the corresponding perl data structure.
229		332
230	=item $json = cf::to_json $ref	333	=item $json = cf::encode_json $ref
231		334
232	Converts a perl data structure into its JSON representation.	335	Converts a perl data structure into its JSON representation.
233		336
		337	=cut
		338
		339	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		340
		341	sub encode_json($) { $json_coder->encode ($_[0]) }
		342	sub decode_json($) { $json_coder->decode ($_[0]) }
		343
		344	=item cf::post_init { BLOCK }
		345
		346	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		347	but I<before> the server starts ticking again.
		348
		349	The cdoeblock will have a single boolean argument to indicate whether this
		350	is a reload or not.
		351
		352	=cut
		353
		354	sub post_init(&) {
		355	push @POST_INIT, shift;
		356	}
		357
234	=item cf::lock_wait $string	358	=item cf::lock_wait $string
235		359
236	Wait until the given lock is available. See cf::lock_acquire.	360	Wait until the given lock is available. See cf::lock_acquire.
237		361
238	=item my $lock = cf::lock_acquire $string	362	=item my $lock = cf::lock_acquire $string
239		363
240	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
241	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,
242	for example when the coroutine gets canceled), the lock is automatically	366	for example when the coroutine gets canceled), the lock is automatically
243	returned.	367	returned.
244		368
		369	Locks are *not* recursive, locking from the same coro twice results in a
		370	deadlocked coro.
		371
245	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
246	uses map_find and cf::map::load uses map_load).	373	uses map_find and cf::map::load uses map_load).
247		374
248	=item $locked = cf::lock_active $string	375	=item $locked = cf::lock_active $string
249		376
250	Return true if the lock is currently active, i.e. somebody has locked it.	377	Return true if the lock is currently active, i.e. somebody has locked it.
251		378
252	=cut	379	=cut
253		380
254	our %LOCK;	381	our $LOCKS = new Coro::SemaphoreSet;
255		382
256	sub lock_wait($) {	383	sub lock_wait($) {
257	my ($key) = @_;	384	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	385	}
265		386
266	sub lock_acquire($) {	387	sub lock_acquire($) {
267	my ($key) = @_;	388	$LOCKS->guard ($_[0])
268
269	# wait, to be sure we are not locked
270	lock_wait $key;
271
272	$LOCK{$key} = [];
273
274	Coro::guard {
275	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };
277	}
278	}	389	}
279		390
280	sub lock_active($) {	391	sub lock_active($) {
281	my ($key) = @_;	392	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	393	}
285		394
286	sub freeze_mainloop {	395	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	396	tick_inhibit_inc;
288		397
289	my $guard = Coro::guard {	398	&Guard::guard (\&tick_inhibit_dec);
290	$TICK_WATCHER->start;	399	}
		400
		401	=item cf::periodic $interval, $cb
		402
		403	Like EV::periodic, but randomly selects a starting point so that the actions
		404	get spread over timer.
		405
		406	=cut
		407
		408	sub periodic($$) {
		409	my ($interval, $cb) = @_;
		410
		411	my $start = rand List::Util::min 180, $interval;
		412
		413	EV::periodic $start, $interval, 0, $cb
		414	}
		415
		416	=item cf::get_slot $time[, $priority[, $name]]
		417
		418	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		419	This call blocks and returns only when you have at least C<$time> seconds
		420	of cpu time till the next tick. The slot is only valid till the next cede.
		421
		422	The optional C<$name> can be used to identify the job to run. It might be
		423	used for statistical purposes and should identify the same time-class.
		424
		425	Useful for short background jobs.
		426
		427	=cut
		428
		429	our @SLOT_QUEUE;
		430	our $SLOT_QUEUE;
		431	our $SLOT_DECAY = 0.9;
		432
		433	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		434	$SLOT_QUEUE = Coro::async {
		435	$Coro::current->desc ("timeslot manager");
		436
		437	my $signal = new Coro::Signal;
		438	my $busy;
		439
		440	while () {
		441	next_job:
		442
		443	my $avail = cf::till_tick;
		444
		445	for (0 .. $#SLOT_QUEUE) {
		446	if ($SLOT_QUEUE[$_][0] <= $avail) {
		447	$busy = 0;
		448	my $job = splice @SLOT_QUEUE, $_, 1, ();
		449	$job->[2]->send;
		450	Coro::cede;
		451	goto next_job;
		452	} else {
		453	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		454	}
		455	}
		456
		457	if (@SLOT_QUEUE) {
		458	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		459	push @cf::WAIT_FOR_TICK, $signal;
		460	$signal->wait;
		461	} else {
		462	$busy = 0;
		463	Coro::schedule;
		464	}
291	};	465	}
292	$TICK_WATCHER->stop;	466	};
293	$guard	467
		468	sub get_slot($;$$) {
		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	$sig->wait;
294	}	481	}
295		482
296	=item cf::async { BLOCK }	483	=item cf::async { BLOCK }
297		484
298	Currently the same as Coro::async_pool, meaning you cannot use	485	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		490
304	BEGIN { *async = \&Coro::async_pool }	491	BEGIN { *async = \&Coro::async_pool }
305		492
306	=item cf::sync_job { BLOCK }	493	=item cf::sync_job { BLOCK }
307		494
308	The design of crossfire+ requires that the main coro ($Coro::main) is	495	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	496	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	497	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		498	acceptable.
311		499
312	If it must be done, put the blocking parts into C<sync_job>. This will run	500	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	501	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	502	server will be frozen during this time, so the block should either finish
315	fast or be very important.	503	fast or be very important.
…		…
318		506
319	sub sync_job(&) {	507	sub sync_job(&) {
320	my ($job) = @_;	508	my ($job) = @_;
321		509
322	if ($Coro::current == $Coro::main) {	510	if ($Coro::current == $Coro::main) {
		511	my $time = AE::time;
		512
323	# this is the main coro, too bad, we have to block	513	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	514	# till the operation succeeds, freezing the server :/
325		515
326	# TODO: use suspend/resume instead	516	LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	517
328	my $freeze_guard = freeze_mainloop;	518	my $freeze_guard = freeze_mainloop;
329		519
330	my $busy = 1;	520	my $busy = 1;
331	my @res;	521	my @res;
332		522
333	(async {	523	(async {
		524	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	525	@res = eval { $job->() };
335	warn $@ if $@;	526	warn $@ if $@;
336	undef $busy;	527	undef $busy;
337	})->prio (Coro::PRIO_MAX);	528	})->prio (Coro::PRIO_MAX);
338		529
339	while ($busy) {	530	while ($busy) {
340	Coro::cede or Event::one_event;	531	if (Coro::nready) {
		532	Coro::cede_notself;
		533	} else {
		534	EV::loop EV::LOOP_ONESHOT;
341	}	535	}
		536	}
		537
		538	my $time = AE::time - $time;
		539
		540	$TICK_START += $time; # do not account sync jobs to server load
342		541
343	wantarray ? @res : $res[0]	542	wantarray ? @res : $res[0]
344	} else {	543	} else {
345	# we are in another coroutine, how wonderful, everything just works	544	# we are in another coroutine, how wonderful, everything just works
346		545
…		…
366	$EXT_CORO{$coro+0} = $coro;	565	$EXT_CORO{$coro+0} = $coro;
367		566
368	$coro	567	$coro
369	}	568	}
370		569
371	sub write_runtime {	570	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		571
374	my $runtime = "$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.
375		576
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	577	=cut
377	or return;
378		578
379	my $value = $cf::RUNTIME + 90 + 10;	579	sub fork_call(&@) {
380	# 10 is the runtime save interval, for a monotonic clock	580	my ($cb, @args) = @_;
381	# 60 allows for the watchdog to kill the server.
382		581
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	582	# we seemingly have to make a local copy of the whole thing,
384	and return;	583	# otherwise perl prematurely frees the stuff :/
		584	# TODO: investigate and fix (likely this will be rather laborious)
385		585
386	# always fsync - this file is important	586	my @res = Coro::Util::fork_eval {
387	aio_fsync $fh	587	reset_signals;
388	and return;	588	&$cb
		589	}, @args;
389		590
390	close $fh	591	wantarray ? @res : $res[-1]
391	or return;	592	}
392		593
393	aio_rename "$runtime~", $runtime	594	=item $coin = coin_from_name $name
394	and return;
395		595
		596	=cut
		597
		598	our %coin_alias = (
		599	"silver" => "silvercoin",
		600	"silvercoin" => "silvercoin",
		601	"silvercoins" => "silvercoin",
		602	"gold" => "goldcoin",
		603	"goldcoin" => "goldcoin",
		604	"goldcoins" => "goldcoin",
		605	"platinum" => "platinacoin",
		606	"platinumcoin" => "platinacoin",
		607	"platinumcoins" => "platinacoin",
		608	"platina" => "platinacoin",
		609	"platinacoin" => "platinacoin",
		610	"platinacoins" => "platinacoin",
		611	"royalty" => "royalty",
		612	"royalties" => "royalty",
		613	);
		614
		615	sub coin_from_name($) {
		616	$coin_alias{$_[0]}
		617	? cf::arch::find $coin_alias{$_[0]}
		618	: undef
		619	}
		620
		621	=item $value = cf::db_get $family => $key
		622
		623	Returns a single value from the environment database.
		624
		625	=item cf::db_put $family => $key => $value
		626
		627	Stores the given C<$value> in the family. It can currently store binary
		628	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		629
		630	=item $db = cf::db_table "name"
		631
		632	Create and/or open a new database table. The string must not be "db" and must be unique
		633	within each server.
		634
		635	=cut
		636
		637	sub db_table($) {
		638	my ($name) = @_;
		639	my $db = BDB::db_create $DB_ENV;
		640
		641	eval {
		642	$db->set_flags (BDB::CHKSUM);
		643
		644	utf8::encode $name;
		645	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		646	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		647	cf::cleanup "db_open(db): $!" if $!;
		648	};
		649	cf::cleanup "db_open(db): $@" if $@;
		650
		651	$db
		652	}
		653
		654	our $DB;
		655
		656	sub db_init {
		657	cf::sync_job {
		658	$DB ||= db_table "db";
		659	};
		660	}
		661
		662	sub db_get($$) {
		663	my $key = "$_[0]/$_[1]";
		664
		665	cf::sync_job {
		666	BDB::db_get $DB, undef, $key, my $data;
		667
		668	$! ? ()
		669	: $data
396	1	670	}
		671	}
		672
		673	sub db_put($$$) {
		674	BDB::dbreq_pri 4;
		675	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		676	}
		677
		678	=item cf::cache $id => [$paths...], $processversion => $process
		679
		680	Generic caching function that returns the value of the resource $id,
		681	caching and regenerating as required.
		682
		683	This function can block.
		684
		685	=cut
		686
		687	sub cache {
		688	my ($id, $src, $processversion, $process) = @_;
		689
		690	my $meta =
		691	join "\x00",
		692	$processversion,
		693	map {
		694	aio_stat $_
		695	and Carp::croak "$_: $!";
		696
		697	($_, (stat _)[7,9])
		698	} @$src;
		699
		700	my $dbmeta = db_get cache => "$id/meta";
		701	if ($dbmeta ne $meta) {
		702	# changed, we may need to process
		703
		704	my @data;
		705	my $md5;
		706
		707	for (0 .. $#$src) {
		708	0 <= aio_load $src->[$_], $data[$_]
		709	or Carp::croak "$src->[$_]: $!";
		710	}
		711
		712	# if processing is expensive, check
		713	# checksum first
		714	if (1) {
		715	$md5 =
		716	join "\x00",
		717	$processversion,
		718	map {
		719	cf::cede_to_tick;
		720	($src->[$_], Digest::MD5::md5_hex $data[$_])
		721	} 0.. $#$src;
		722
		723
		724	my $dbmd5 = db_get cache => "$id/md5";
		725	if ($dbmd5 eq $md5) {
		726	db_put cache => "$id/meta", $meta;
		727
		728	return db_get cache => "$id/data";
		729	}
		730	}
		731
		732	my $t1 = Time::HiRes::time;
		733	my $data = $process->(\@data);
		734	my $t2 = Time::HiRes::time;
		735
		736	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		737
		738	db_put cache => "$id/data", $data;
		739	db_put cache => "$id/md5" , $md5;
		740	db_put cache => "$id/meta", $meta;
		741
		742	return $data;
		743	}
		744
		745	db_get cache => "$id/data"
397	}	746	}
398		747
399	=item cf::datalog type => key => value, ...	748	=item cf::datalog type => key => value, ...
400		749
401	Log a datalog packet of the given type with the given key-value pairs.	750	Log a datalog packet of the given type with the given key-value pairs.
…		…
413		762
414	#############################################################################	763	#############################################################################
415		764
416	=head2 ATTACHABLE OBJECTS	765	=head2 ATTACHABLE OBJECTS
417		766
418	Many objects in crossfire are so-called attachable objects. That means you can	767	Many objects in deliantra are so-called attachable objects. That means you can
419	attach callbacks/event handlers (a collection of which is called an "attachment")	768	attach callbacks/event handlers (a collection of which is called an "attachment")
420	to it. All such attachable objects support the following methods.	769	to it. All such attachable objects support the following methods.
421		770
422	In the following description, CLASS can be any of C<global>, C<object>	771	In the following description, CLASS can be any of C<global>, C<object>
423	C<player>, C<client> or C<map> (i.e. the attachable objects in	772	C<player>, C<client> or C<map> (i.e. the attachable objects in
424	crossfire+).	773	Deliantra).
425		774
426	=over 4	775	=over 4
427		776
428	=item $attachable->attach ($attachment, key => $value...)	777	=item $attachable->attach ($attachment, key => $value...)
429		778
…		…
473	=item cf::CLASS::attachment $name, ...	822	=item cf::CLASS::attachment $name, ...
474		823
475	Register an attachment by C<$name> through which attachable objects of the	824	Register an attachment by C<$name> through which attachable objects of the
476	given CLASS can refer to this attachment.	825	given CLASS can refer to this attachment.
477		826
478	Some classes such as crossfire maps and objects can specify attachments	827	Some classes such as deliantra maps and objects can specify attachments
479	that are attached at load/instantiate time, thus the need for a name.	828	that are attached at load/instantiate time, thus the need for a name.
480		829
481	These calls expect any number of the following handler/hook descriptions:	830	These calls expect any number of the following handler/hook descriptions:
482		831
483	=over 4	832	=over 4
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	941	$registry = $CB_TYPE[$object_type] ||= [];
593		942
594	} elsif ($type eq "subtype") {	943	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	944	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	945	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	946	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		947
599	} elsif ($type eq "package") {	948	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	949	my $pkg = shift @arg;
601		950
602	while (my ($name, $id) = each %cb_id) {	951	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	980	_attach $registry, $klass, @attach;
632	}	981	}
633		982
634	$obj->{$name} = \%arg;	983	$obj->{$name} = \%arg;
635	} else {	984	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	985	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	986	}
638		987
639	$obj->{_attachment}{$name} = undef;	988	$obj->{_attachment}{$name} = undef;
640	}	989	}
641		990
…		…
643	if (ref $_[0]) {	992	if (ref $_[0]) {
644	_object_attach @_;	993	_object_attach @_;
645	} else {	994	} else {
646	_attach shift->_attach_registry, @_;	995	_attach shift->_attach_registry, @_;
647	}	996	}
		997	_recalc_want;
648	};	998	};
649		999
650	# all those should be optimised	1000	# all those should be optimised
651	sub cf::attachable::detach {	1001	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	1002	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	1005	delete $obj->{_attachment}{$name};
656	reattach ($obj);	1006	reattach ($obj);
657	} else {	1007	} else {
658	Carp::croak "cannot, currently, detach class attachments";	1008	Carp::croak "cannot, currently, detach class attachments";
659	}	1009	}
		1010	_recalc_want;
660	};	1011	};
661		1012
662	sub cf::attachable::attached {	1013	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	1014	my ($obj, $name) = @_;
664		1015
…		…
679	";	1030	";
680	die if $@;	1031	die if $@;
681	}	1032	}
682		1033
683	our $override;	1034	our $override;
684	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1035	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
685		1036
686	sub override {	1037	sub override {
687	$override = 1;	1038	$override = 1;
688	@invoke_results = ();	1039	@INVOKE_RESULTS = (@_);
689	}	1040	}
690		1041
691	sub do_invoke {	1042	sub do_invoke {
692	my $event = shift;	1043	my $event = shift;
693	my $callbacks = shift;	1044	my $callbacks = shift;
694		1045
695	@invoke_results = ();	1046	@INVOKE_RESULTS = ();
696		1047
697	local $override;	1048	local $override;
698		1049
699	for (@$callbacks) {	1050	for (@$callbacks) {
700	eval { &{$_->[1]} };	1051	eval { &{$_->[1]} };
…		…
709	}	1060	}
710		1061
711	0	1062	0
712	}	1063	}
713		1064
714	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1065	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
715		1066
716	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1067	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
717		1068
718	Generate an object-specific event with the given arguments.	1069	Generate an object-specific event with the given arguments.
719		1070
720	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1071	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
721	removed in future versions), and there is no public API to access override	1072	removed in future versions), and there is no public API to access override
722	results (if you must, access C<@cf::invoke_results> directly).	1073	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		1074
724	=back	1075	=back
725		1076
726	=cut	1077	=cut
727		1078
728	#############################################################################	1079	#############################################################################
729	# object support	1080	# object support
		1081
		1082	sub _object_equal($$);
		1083	sub _object_equal($$) {
		1084	my ($a, $b) = @_;
		1085
		1086	return 0 unless (ref $a) eq (ref $b);
		1087
		1088	if ("HASH" eq ref $a) {
		1089	my @ka = keys %$a;
		1090	my @kb = keys %$b;
		1091
		1092	return 0 if @ka != @kb;
		1093
		1094	for (0 .. $#ka) {
		1095	return 0 unless $ka[$_] eq $kb[$_];
		1096	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1097	}
		1098
		1099	} elsif ("ARRAY" eq ref $a) {
		1100
		1101	return 0 if @$a != @$b;
		1102
		1103	for (0 .. $#$a) {
		1104	return 0 unless _object_equal $a->[$_], $b->[$_];
		1105	}
		1106
		1107	} elsif ($a ne $b) {
		1108	return 0;
		1109	}
		1110
		1111	1
		1112	}
		1113
		1114	our $SLOW_MERGES;#d#
		1115	sub _can_merge {
		1116	my ($ob1, $ob2) = @_;
		1117
		1118	++$SLOW_MERGES;#d#
		1119
		1120	# we do the slow way here
		1121	return _object_equal $ob1, $ob2
		1122	}
730		1123
731	sub reattach {	1124	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	1125	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	1126	my ($obj) = @_;
734		1127
		1128	# no longer needed after getting rid of delete_package?
735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1129	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
736		1130
737	my $registry = $obj->registry;	1131	my $registry = $obj->registry;
738		1132
739	@$registry = ();	1133	@$registry = ();
740		1134
…		…
755	cf::attachable->attach (	1149	cf::attachable->attach (
756	prio => -1000000,	1150	prio => -1000000,
757	on_instantiate => sub {	1151	on_instantiate => sub {
758	my ($obj, $data) = @_;	1152	my ($obj, $data) = @_;
759		1153
760	$data = from_json $data;	1154	$data = decode_json $data;
761		1155
762	for (@$data) {	1156	for (@$data) {
763	my ($name, $args) = @$_;	1157	my ($name, $args) = @$_;
764		1158
765	$obj->attach ($name, %{$args || {} });	1159	$obj->attach ($name, %{$args || {} });
…		…
781	sub object_freezer_save {	1175	sub object_freezer_save {
782	my ($filename, $rdata, $objs) = @_;	1176	my ($filename, $rdata, $objs) = @_;
783		1177
784	sync_job {	1178	sync_job {
785	if (length $$rdata) {	1179	if (length $$rdata) {
		1180	utf8::decode (my $decname = $filename);
786	warn sprintf "saving %s (%d,%d)\n",	1181	warn sprintf "saving %s (%d,%d)\n",
787	$filename, length $$rdata, scalar @$objs;	1182	$decname, length $$rdata, scalar @$objs;
788		1183
789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
790	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1186	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
792	aio_fsync $fh if $cf::USE_FSYNC;	1187	if ($cf::USE_FSYNC) {
		1188	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1189	aio_fsync $fh;
		1190	}
793	close $fh;	1191	aio_close $fh;
794		1192
795	if (@$objs) {	1193	if (@$objs) {
796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1194	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
797	chmod SAVE_MODE, $fh;	1195	aio_chmod $fh, SAVE_MODE;
798	my $data = Storable::nfreeze { version => 1, objs => $objs };	1196	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
799	aio_write $fh, 0, (length $data), $data, 0;	1197	aio_write $fh, 0, (length $data), $data, 0;
800	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	}
801	close $fh;	1202	aio_close $fh;
802	aio_rename "$filename.pst~", "$filename.pst";	1203	aio_rename "$filename.pst~", "$filename.pst";
803	}	1204	}
804	} else {	1205	} else {
805	aio_unlink "$filename.pst";	1206	aio_unlink "$filename.pst";
806	}	1207	}
807		1208
808	aio_rename "$filename~", $filename;	1209	aio_rename "$filename~", $filename;
		1210
		1211	$filename =~ s%/[^/]+$%%;
		1212	aio_pathsync $filename if $cf::USE_FSYNC;
809	} else {	1213	} else {
810	warn "FATAL: $filename~: $!\n";	1214	warn "unable to save objects: $filename~: $!\n";
811	}	1215	}
812	} else {	1216	} else {
813	aio_unlink $filename;	1217	aio_unlink $filename;
814	aio_unlink "$filename.pst";	1218	aio_unlink "$filename.pst";
815	}	1219	}
816	}	1220	};
817	}	1221	}
818		1222
819	sub object_freezer_as_string {	1223	sub object_freezer_as_string {
820	my ($rdata, $objs) = @_;	1224	my ($rdata, $objs) = @_;
821		1225
…		…
833	or return;	1237	or return;
834		1238
835	unless (aio_stat "$filename.pst") {	1239	unless (aio_stat "$filename.pst") {
836	(aio_load "$filename.pst", $av) >= 0	1240	(aio_load "$filename.pst", $av) >= 0
837	or return;	1241	or return;
		1242
838	$av = eval { (Storable::thaw $av)->{objs} };	1243	my $st = eval { Coro::Storable::thaw $av };
		1244	$av = $st->{objs};
839	}	1245	}
840		1246
		1247	utf8::decode (my $decname = $filename);
841	warn sprintf "loading %s (%d)\n",	1248	warn sprintf "loading %s (%d,%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1249	$decname, length $data, scalar @{$av || []};
		1250
843	return ($data, $av);	1251	($data, $av)
844	}	1252	}
		1253
		1254	=head2 COMMAND CALLBACKS
		1255
		1256	=over 4
		1257
		1258	=cut
845		1259
846	#############################################################################	1260	#############################################################################
847	# command handling &c	1261	# command handling &c
848		1262
849	=item cf::register_command $name => \&callback($ob,$args);	1263	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1276	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1277	}
864		1278
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1279	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1280
867	Register a callbackf ro execution when the client sends an extcmd packet.	1281	Register a callback for execution when the client sends an (synchronous)
		1282	extcmd packet. Ext commands will be processed in the order they are
		1283	received by the server, like other user commands. The first argument is
		1284	the logged-in player. Ext commands can only be processed after a player
		1285	has logged in successfully.
868		1286
869	If the callback returns something, it is sent back as if reply was being	1287	If the callback returns something, it is sent back as if reply was being
870	called.	1288	called.
871		1289
		1290	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1291
		1292	Register a callback for execution when the client sends an (asynchronous)
		1293	exticmd packet. Exti commands are processed by the server as soon as they
		1294	are received, i.e. out of order w.r.t. other commands. The first argument
		1295	is a client socket. Exti commands can be received anytime, even before
		1296	log-in.
		1297
		1298	If the callback returns something, it is sent back as if reply was being
		1299	called.
		1300
872	=cut	1301	=cut
873		1302
874	sub register_extcmd {	1303	sub register_extcmd {
875	my ($name, $cb) = @_;	1304	my ($name, $cb) = @_;
876		1305
877	$EXTCMD{$name} = $cb;	1306	$EXTCMD{$name} = $cb;
878	}	1307	}
879		1308
		1309	sub register_exticmd {
		1310	my ($name, $cb) = @_;
		1311
		1312	$EXTICMD{$name} = $cb;
		1313	}
		1314
		1315	use File::Glob ();
		1316
880	cf::player->attach (	1317	cf::player->attach (
881	on_command => sub {	1318	on_unknown_command => sub {
882	my ($pl, $name, $params) = @_;	1319	my ($pl, $name, $params) = @_;
883		1320
884	my $cb = $COMMAND{$name}	1321	my $cb = $COMMAND{$name}
885	or return;	1322	or return;
886		1323
…		…
891	cf::override;	1328	cf::override;
892	},	1329	},
893	on_extcmd => sub {	1330	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1331	my ($pl, $buf) = @_;
895		1332
896	my $msg = eval { from_json $buf };	1333	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1334
898	if (ref $msg) {	1335	if (ref $msg) {
		1336	my ($type, $reply, @payload) =
		1337	"ARRAY" eq ref $msg
		1338	? @$msg
		1339	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1340
		1341	my @reply;
		1342
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1343	if (my $cb = $EXTCMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1344	@reply = $cb->($pl, @payload);
901	$pl->ext_reply ($msg->{msgid}, %reply);
902	}
903	}	1345	}
		1346
		1347	$pl->ext_reply ($reply, @reply)
		1348	if $reply;
		1349
904	} else {	1350	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1351	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1352	}
907		1353
908	cf::override;	1354	cf::override;
909	},	1355	},
910	);	1356	);
911		1357
		1358	# "readahead" all extensions
912	sub load_extension {	1359	sub cache_extensions {
913	my ($path) = @_;	1360	my $grp = IO::AIO::aio_group;
914		1361
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1362	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
916	my $base = $1;	1363	for (grep /\.ext$/, @{$_[0]}) {
917	my $pkg = $1;	1364	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
918	$pkg =~ s/[^[:word:]]/_/g;
919	$pkg = "ext::$pkg";
920
921	warn "... loading '$path' into '$pkg'\n";
922
923	open my $fh, "<:utf8", $path
924	or die "$path: $!";
925
926	my $source =
927	"package $pkg; use strict; use utf8;\n"
928	. "#line 1 \"$path\"\n{\n"
929	. (do { local $/; <$fh> })
930	. "\n};\n1";
931
932	unless (eval $source) {
933	my $msg = $@ ? "$path: $@\n"
934	: "extension disabled.\n";
935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
936	warn $@;
937	warn "mandatory extension failed to load, exiting.\n";
938	exit 1;
939	}	1365	}
940	die $@;
941	}	1366	};
942		1367
943	push @EXTS, $pkg;	1368	$grp
944	}	1369	}
945		1370
946	sub load_extensions {	1371	sub load_extensions {
		1372	cf::sync_job {
		1373	my %todo;
		1374
947	for my $ext (<$LIBDIR/*.ext>) {	1375	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1376	next unless -r $path;
949	eval {	1377
950	load_extension $ext;	1378	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1379	my $base = $1;
		1380	my $pkg = $1;
		1381	$pkg =~ s/[^[:word:]]/_/g;
		1382	$pkg = "ext::$pkg";
		1383
		1384	open my $fh, "<:utf8", $path
		1385	or die "$path: $!";
		1386
		1387	my $source = do { local $/; <$fh> };
		1388
		1389	my %ext = (
		1390	path => $path,
		1391	base => $base,
		1392	pkg => $pkg,
		1393	);
		1394
		1395	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1396	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1397
		1398	$ext{source} =
		1399	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1400	. "#line 1 \"$path\"\n{\n"
		1401	. $source
		1402	. "\n};\n1";
		1403
		1404	$todo{$base} = \%ext;
		1405	}
		1406
		1407	my $pass = 0;
		1408	my %done;
		1409	while (%todo) {
		1410	my $progress;
		1411
		1412	++$pass;
		1413
		1414	ext:
		1415	while (my ($k, $v) = each %todo) {
		1416	for (split /,\s*/, $v->{meta}{depends}) {
		1417	next ext
		1418	unless exists $done{$_};
		1419	}
		1420
		1421	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1422
		1423	my $active = eval $v->{source};
		1424
		1425	if (length $@) {
		1426	warn "$v->{path}: $@\n";
		1427
		1428	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1429	if exists $v->{meta}{mandatory};
		1430	} else {
		1431	$done{$k} = delete $todo{$k};
		1432	push @EXTS, $v->{pkg};
		1433	$progress = 1;
		1434
		1435	warn "$v->{base}: extension inactive.\n"
		1436	unless $active;
		1437	}
951	1	1438	}
952	} or warn "$ext not loaded: $@";	1439
		1440	unless ($progress) {
		1441	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1442
		1443	while (my ($k, $v) = each %todo) {
		1444	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1445	if exists $v->{meta}{mandatory};
		1446	}
		1447	}
		1448	}
953	}	1449	};
954	}	1450	}
955		1451
956	#############################################################################	1452	#############################################################################
957		1453
		1454	=back
		1455
958	=head2 CORE EXTENSIONS	1456	=head2 CORE EXTENSIONS
959		1457
960	Functions and methods that extend core crossfire objects.	1458	Functions and methods that extend core deliantra objects.
961		1459
962	=cut	1460	=cut
963		1461
964	package cf::player;	1462	package cf::player;
965		1463
966	use Coro::AIO;	1464	use Coro::AIO;
967		1465
968	=head3 cf::player	1466	=head3 cf::player
969		1467
970	=over 4	1468	=over 4
		1469
		1470	=item cf::player::num_playing
		1471
		1472	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1473
		1474	=cut
		1475
		1476	sub num_playing {
		1477	scalar grep
		1478	$_->ob->map
		1479	&& !$_->hidden
		1480	&& !$_->ob->flag (cf::FLAG_WIZ),
		1481	cf::player::list
		1482	}
971		1483
972	=item cf::player::find $login	1484	=item cf::player::find $login
973		1485
974	Returns the given player object, loading it if necessary (might block).	1486	Returns the given player object, loading it if necessary (might block).
975		1487
…		…
994		1506
995	sub exists($) {	1507	sub exists($) {
996	my ($login) = @_;	1508	my ($login) = @_;
997		1509
998	$cf::PLAYER{$login}	1510	$cf::PLAYER{$login}
999	or cf::sync_job { !aio_stat path $login }	1511	or !aio_stat path $login
1000	}	1512	}
1001		1513
1002	sub find($) {	1514	sub find($) {
1003	return $cf::PLAYER{$_[0]} || do {	1515	return $cf::PLAYER{$_[0]} || do {
1004	my $login = $_[0];	1516	my $login = $_[0];
…		…
1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1523	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1524	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1525	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014	aio_unlink +(playerdir $login) . "/$login.pl";	1526	aio_unlink +(playerdir $login) . "/$login.pl";
1015		1527
1016	my $pl = load_pl path $login	1528	my $f = new_from_file cf::object::thawer path $login
1017	or return;	1529	or return;
		1530
		1531	my $pl = cf::player::load_pl $f
		1532	or return;
		1533
		1534	local $cf::PLAYER_LOADING{$login} = $pl;
		1535	$f->resolve_delayed_derefs;
1018	$cf::PLAYER{$login} = $pl	1536	$cf::PLAYER{$login} = $pl
1019	}	1537	}
1020	}	1538	}
1021	}	1539	}
		1540
		1541	cf::player->attach (
		1542	on_load => sub {
		1543	my ($pl, $path) = @_;
		1544
		1545	# restore slots saved in save, below
		1546	my $slots = delete $pl->{_slots};
		1547
		1548	$pl->ob->current_weapon ($slots->[0]);
		1549	$pl->combat_ob ($slots->[1]);
		1550	$pl->ranged_ob ($slots->[2]);
		1551	},
		1552	);
1022		1553
1023	sub save($) {	1554	sub save($) {
1024	my ($pl) = @_;	1555	my ($pl) = @_;
1025		1556
1026	return if $pl->{deny_save};	1557	return if $pl->{deny_save};
…		…
1031	return if $pl->{deny_save};	1562	return if $pl->{deny_save};
1032		1563
1033	aio_mkdir playerdir $pl, 0770;	1564	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1565	$pl->{last_save} = $cf::RUNTIME;
1035		1566
		1567	cf::get_slot 0.01;
		1568
		1569	# save slots, to be restored later
		1570	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1571
1036	$pl->save_pl ($path);	1572	$pl->save_pl ($path);
1037	Coro::cede;	1573	cf::cede_to_tick;
1038	}	1574	}
1039		1575
1040	sub new($) {	1576	sub new($) {
1041	my ($login) = @_;	1577	my ($login) = @_;
1042		1578
…		…
1048	$cf::PLAYER{$login} = $self;	1584	$cf::PLAYER{$login} = $self;
1049		1585
1050	$self	1586	$self
1051	}	1587	}
1052		1588
		1589	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1590
		1591	=cut
		1592
		1593	sub send_msg {
		1594	my $ns = shift->ns
		1595	or return;
		1596	$ns->send_msg (@_);
		1597	}
		1598
1053	=item $pl->quit_character	1599	=item $pl->quit_character
1054		1600
1055	Nukes the player without looking back. If logged in, the connection will	1601	Nukes the player without looking back. If logged in, the connection will
1056	be destroyed. May block for a long time.	1602	be destroyed. May block for a long time.
1057		1603
…		…
1061	my ($pl) = @_;	1607	my ($pl) = @_;
1062		1608
1063	my $name = $pl->ob->name;	1609	my $name = $pl->ob->name;
1064		1610
1065	$pl->{deny_save} = 1;	1611	$pl->{deny_save} = 1;
1066	$pl->password ("*"); # this should lock out the player until we nuked the dir	1612	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1067		1613
1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1614	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1069	$pl->deactivate;	1615	$pl->deactivate;
		1616	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1617	$pl->ob->check_score;
1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1618	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1071	$pl->ns->destroy if $pl->ns;	1619	$pl->ns->destroy if $pl->ns;
1072		1620
1073	my $path = playerdir $pl;	1621	my $path = playerdir $pl;
1074	my $temp = "$path~$cf::RUNTIME~deleting~";	1622	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1110	or return [];	1658	or return [];
1111		1659
1112	my @logins;	1660	my @logins;
1113		1661
1114	for my $login (@$dirs) {	1662	for my $login (@$dirs) {
		1663	my $path = path $login;
		1664
		1665	# a .pst is a dead give-away for a valid player
		1666	# if no pst file found, open and chekc for blocked users
		1667	if (aio_stat "$path.pst") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1668	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1669	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1670	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1671	}
1118		1672
1119	utf8::decode $login;	1673	utf8::decode $login;
1120	push @logins, $login;	1674	push @logins, $login;
1121	}	1675	}
1122		1676
…		…
1149	}	1703	}
1150		1704
1151	\@paths	1705	\@paths
1152	}	1706	}
1153		1707
		1708	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1709
		1710	Expand deliantra pod fragments into protocol xml.
		1711
1154	=item $player->ext_reply ($msgid, %msg)	1712	=item $player->ext_reply ($msgid, @msg)
1155		1713
1156	Sends an ext reply to the player.	1714	Sends an ext reply to the player.
1157		1715
1158	=cut	1716	=cut
1159		1717
1160	sub ext_reply($$%) {	1718	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1719	my ($self, $id, @msg) = @_;
1162		1720
1163	$msg{msgid} = $id;	1721	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1722	}
1167		1723
1168	=item $player->ext_event ($type, %msg)	1724	=item $player->ext_msg ($type, @msg)
1169		1725
1170	Sends an ext event to the client.	1726	Sends an ext event to the client.
1171		1727
1172	=cut	1728	=cut
1173		1729
1174	sub ext_event($$%) {	1730	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1731	my ($self, $type, @msg) = @_;
1176		1732
1177	$self->ns->ext_event ($type, %msg);	1733	$self->ns->ext_msg ($type, @msg);
1178	}	1734	}
1179		1735
1180	=head3 cf::region	1736	=head3 cf::region
1181		1737
1182	=over 4	1738	=over 4
…		…
1185		1741
1186	package cf::region;	1742	package cf::region;
1187		1743
1188	=item cf::region::find_by_path $path	1744	=item cf::region::find_by_path $path
1189		1745
1190	Tries to decuce the probable region for a map knowing only its path.	1746	Tries to decuce the likely region for a map knowing only its path.
1191		1747
1192	=cut	1748	=cut
1193		1749
1194	sub find_by_path($) {	1750	sub find_by_path($) {
1195	my ($path) = @_;	1751	my ($path) = @_;
1196		1752
1197	my ($match, $specificity);	1753	my ($match, $specificity);
1198		1754
1199	for my $region (list) {	1755	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1756	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1757	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1758	if $region->specificity > $specificity;
1203	}	1759	}
1204	}	1760	}
1205		1761
…		…
1226	our $MAX_RESET = 3600;	1782	our $MAX_RESET = 3600;
1227	our $DEFAULT_RESET = 3000;	1783	our $DEFAULT_RESET = 3000;
1228		1784
1229	sub generate_random_map {	1785	sub generate_random_map {
1230	my ($self, $rmp) = @_;	1786	my ($self, $rmp) = @_;
		1787
		1788	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1789
1231	# mit "rum" bekleckern, nicht	1790	# mit "rum" bekleckern, nicht
1232	$self->_create_random_map (	1791	$self->_create_random_map (
1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1792	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1793	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1794	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1236	$rmp->{exit_on_final_map},	1795	$rmp->{exit_on_final_map},
1237	$rmp->{xsize}, $rmp->{ysize},	1796	$rmp->{xsize}, $rmp->{ysize},
1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1797	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1798	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1269	my ($self, $merge) = @_;	1828	my ($self, $merge) = @_;
1270		1829
1271	# we have to keep some variables in memory intact	1830	# we have to keep some variables in memory intact
1272	local $self->{path};	1831	local $self->{path};
1273	local $self->{load_path};	1832	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1833
1277	$self->SUPER::thawer_merge ($merge);	1834	$self->SUPER::thawer_merge ($merge);
1278	}	1835	}
1279		1836
1280	sub normalise {	1837	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1884	$self->init; # pass $1 etc.
1328	return $self;	1885	return $self;
1329	}	1886	}
1330	}	1887	}
1331		1888
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1889	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1890	()
1334	}	1891	}
1335		1892
1336	sub init {	1893	sub init {
1337	my ($self) = @_;	1894	my ($self) = @_;
…		…
1359		1916
1360	# the temporary/swap location	1917	# the temporary/swap location
1361	sub save_path {	1918	sub save_path {
1362	my ($self) = @_;	1919	my ($self) = @_;
1363		1920
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1921	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1365	"$TMPDIR/$path.map"	1922	"$TMPDIR/$path.map"
1366	}	1923	}
1367		1924
1368	# the unique path, undef == no special unique path	1925	# the unique path, undef == no special unique path
1369	sub uniq_path {	1926	sub uniq_path {
1370	my ($self) = @_;	1927	my ($self) = @_;
1371		1928
1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1929	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1373	"$UNIQUEDIR/$path"	1930	"$UNIQUEDIR/$path"
1374	}	1931	}
1375		1932
1376	# and all this just because we cannot iterate over	1933	sub decay_objects {
1377	# all maps in C++...
1378	sub change_all_map_light {
1379	my ($change) = @_;	1934	my ($self) = @_;
1380		1935
1381	$_->change_map_light ($change)	1936	return if $self->{deny_reset};
1382	for grep $_->outdoor, values %cf::MAP;	1937
		1938	$self->do_decay_objects;
1383	}	1939	}
1384		1940
1385	sub unlink_save {	1941	sub unlink_save {
1386	my ($self) = @_;	1942	my ($self) = @_;
1387		1943
…		…
1392		1948
1393	sub load_header_from($) {	1949	sub load_header_from($) {
1394	my ($self, $path) = @_;	1950	my ($self, $path) = @_;
1395		1951
1396	utf8::encode $path;	1952	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	1953	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	1954	or return;
		1955
		1956	$self->_load_header ($f)
		1957	or return;
		1958
		1959	local $MAP_LOADING{$self->{path}} = $self;
		1960	$f->resolve_delayed_derefs;
1402		1961
1403	$self->{load_path} = $path;	1962	$self->{load_path} = $path;
1404		1963
1405	1	1964	1
1406	}	1965	}
…		…
1445	$self->load_header_orig	2004	$self->load_header_orig
1446	or return;	2005	or return;
1447	$self->prepare_orig;	2006	$self->prepare_orig;
1448	}	2007	}
1449		2008
		2009	$self->{deny_reset} = 1
		2010	if $self->no_reset;
		2011
1450	$self->default_region (cf::region::find_by_path $self->{path})	2012	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	2013	unless $self->default_region;
1452		2014
1453	1	2015	1
1454	}	2016	}
…		…
1457	sub find {	2019	sub find {
1458	my ($path, $origin) = @_;	2020	my ($path, $origin) = @_;
1459		2021
1460	$path = normalise $path, $origin && $origin->path;	2022	$path = normalise $path, $origin && $origin->path;
1461		2023
		2024	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	2025	my $guard2 = cf::lock_acquire "map_find:$path";
1463		2026
1464	$cf::MAP{$path} || do {	2027	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";
1466	my $map = new_from_path cf::map $path	2028	my $map = new_from_path cf::map $path
1467	or return;	2029	or return;
1468		2030
1469	$map->{last_save} = $cf::RUNTIME;	2031	$map->{last_save} = $cf::RUNTIME;
1470		2032
1471	$map->load_header	2033	$map->load_header
1472	or return;	2034	or return;
1473		2035
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2036	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	2037	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	2038	#$cf::WAIT_FOR_TICK->wait;
		2039	undef $guard2;
		2040	undef $guard1;
1477	$map->reset;	2041	$map->reset;
1478	undef $guard;
1479	return find $path;	2042	return find $path;
1480	}	2043	}
1481		2044
1482	$cf::MAP{$path} = $map	2045	$cf::MAP{$path} = $map
1483	}	2046	}
1484	}	2047	}
1485		2048
1486	sub pre_load { }	2049	sub pre_load { }
1487	sub post_load { }	2050	#sub post_load { } # XS
1488		2051
1489	sub load {	2052	sub load {
1490	my ($self) = @_;	2053	my ($self) = @_;
1491		2054
1492	local $self->{deny_reset} = 1; # loading can take a long time	2055	local $self->{deny_reset} = 1; # loading can take a long time
1493		2056
1494	my $path = $self->{path};	2057	my $path = $self->{path};
1495		2058
1496	{	2059	{
1497	my $guard = cf::lock_acquire "map_load:$path";	2060	my $guard = cf::lock_acquire "map_data:$path";
1498		2061
		2062	return unless $self->valid;
1499	return if $self->in_memory != cf::MAP_SWAPPED;	2063	return unless $self->in_memory == cf::MAP_SWAPPED;
1500		2064
1501	$self->in_memory (cf::MAP_LOADING);	2065	$self->in_memory (cf::MAP_LOADING);
1502		2066
1503	$self->alloc;	2067	$self->alloc;
1504		2068
1505	$self->pre_load;	2069	$self->pre_load;
1506	Coro::cede;	2070	cf::cede_to_tick;
1507		2071
		2072	my $f = new_from_file cf::object::thawer $self->{load_path};
		2073	$f->skip_block;
1508	$self->_load_objects ($self->{load_path}, 1)	2074	$self->_load_objects ($f)
1509	or return;	2075	or return;
1510		2076
1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2077	$self->post_load_original
1512	if delete $self->{load_original};	2078	if delete $self->{load_original};
1513		2079
1514	if (my $uniq = $self->uniq_path) {	2080	if (my $uniq = $self->uniq_path) {
1515	utf8::encode $uniq;	2081	utf8::encode $uniq;
1516	if (aio_open $uniq, O_RDONLY, 0) {	2082	unless (aio_stat $uniq) {
		2083	if (my $f = new_from_file cf::object::thawer $uniq) {
1517	$self->clear_unique_items;	2084	$self->clear_unique_items;
1518	$self->_load_objects ($uniq, 0);	2085	$self->_load_objects ($f);
		2086	$f->resolve_delayed_derefs;
		2087	}
1519	}	2088	}
1520	}	2089	}
1521		2090
1522	Coro::cede;	2091	$f->resolve_delayed_derefs;
		2092
		2093	cf::cede_to_tick;
1523	# now do the right thing for maps	2094	# now do the right thing for maps
1524	$self->link_multipart_objects;	2095	$self->link_multipart_objects;
1525	$self->difficulty ($self->estimate_difficulty)	2096	$self->difficulty ($self->estimate_difficulty)
1526	unless $self->difficulty;	2097	unless $self->difficulty;
1527	Coro::cede;	2098	cf::cede_to_tick;
1528		2099
1529	unless ($self->{deny_activate}) {	2100	unless ($self->{deny_activate}) {
1530	$self->decay_objects;	2101	$self->decay_objects;
1531	$self->fix_auto_apply;	2102	$self->fix_auto_apply;
1532	$self->update_buttons;	2103	$self->update_buttons;
1533	Coro::cede;	2104	cf::cede_to_tick;
1534	$self->set_darkness_map;
1535	Coro::cede;
1536	$self->activate;	2105	$self->activate;
1537	}	2106	}
1538		2107
		2108	$self->{last_save} = $cf::RUNTIME;
		2109	$self->last_access ($cf::RUNTIME);
		2110
1539	$self->in_memory (cf::MAP_IN_MEMORY);	2111	$self->in_memory (cf::MAP_ACTIVE);
1540	}	2112	}
1541		2113
1542	$self->post_load;	2114	$self->post_load;
1543	}	2115	}
1544		2116
		2117	# customize the map for a given player, i.e.
		2118	# return the _real_ map. used by e.g. per-player
		2119	# maps to change the path to ~playername/mappath
1545	sub customise_for {	2120	sub customise_for {
1546	my ($self, $ob) = @_;	2121	my ($self, $ob) = @_;
1547		2122
1548	return find "~" . $ob->name . "/" . $self->{path}	2123	return find "~" . $ob->name . "/" . $self->{path}
1549	if $self->per_player;	2124	if $self->per_player;
1550		2125
		2126	# return find "?party/" . $ob->name . "/" . $self->{path}
		2127	# if $self->per_party;
		2128
1551	$self	2129	$self
1552	}	2130	}
1553		2131
1554	# find and load all maps in the 3x3 area around a map	2132	# find and load all maps in the 3x3 area around a map
1555	sub load_diag {	2133	sub load_neighbours {
1556	my ($map) = @_;	2134	my ($map) = @_;
1557		2135
1558	my @diag; # diagonal neighbours	2136	my @neigh; # diagonal neighbours
1559		2137
1560	for (0 .. 3) {	2138	for (0 .. 3) {
1561	my $neigh = $map->tile_path ($_)	2139	my $neigh = $map->tile_path ($_)
1562	or next;	2140	or next;
1563	$neigh = find $neigh, $map	2141	$neigh = find $neigh, $map
1564	or next;	2142	or next;
1565	$neigh->load;	2143	$neigh->load;
1566		2144
		2145	push @neigh,
1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2146	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2147	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1569	}	2148	}
1570		2149
1571	for (@diag) {	2150	for (grep defined $_->[0], @neigh) {
		2151	my ($path, $origin) = @$_;
1572	my $neigh = find @$_	2152	my $neigh = find $path, $origin
1573	or next;	2153	or next;
1574	$neigh->load;	2154	$neigh->load;
1575	}	2155	}
1576	}	2156	}
1577		2157
…		…
1582	}	2162	}
1583		2163
1584	sub do_load_sync {	2164	sub do_load_sync {
1585	my ($map) = @_;	2165	my ($map) = @_;
1586		2166
		2167	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2168	if $Coro::current == $Coro::main;
		2169
1587	cf::sync_job { $map->load };	2170	cf::sync_job { $map->load };
1588	}	2171	}
1589		2172
1590	our %MAP_PREFETCH;	2173	our %MAP_PREFETCH;
1591	our $MAP_PREFETCHER = undef;	2174	our $MAP_PREFETCHER = undef;
1592		2175
1593	sub find_async {	2176	sub find_async {
1594	my ($path, $origin) = @_;	2177	my ($path, $origin, $load) = @_;
1595		2178
1596	$path = normalise $path, $origin && $origin->{path};	2179	$path = normalise $path, $origin && $origin->{path};
1597		2180
1598	if (my $map = $cf::MAP{$path}) {	2181	if (my $map = $cf::MAP{$path}) {
1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2182	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1600	}	2183	}
1601		2184
1602	undef $MAP_PREFETCH{$path};	2185	$MAP_PREFETCH{$path} |= $load;
		2186
1603	$MAP_PREFETCHER ||= cf::async {	2187	$MAP_PREFETCHER ||= cf::async {
		2188	$Coro::current->{desc} = "map prefetcher";
		2189
1604	while (%MAP_PREFETCH) {	2190	while (%MAP_PREFETCH) {
1605	for my $path (keys %MAP_PREFETCH) {	2191	while (my ($k, $v) = each %MAP_PREFETCH) {
1606	my $map = find $path	2192	if (my $map = find $k) {
1607	or next;
1608	$map->load;	2193	$map->load if $v;
		2194	}
1609		2195
1610	delete $MAP_PREFETCH{$path};	2196	delete $MAP_PREFETCH{$k};
1611	}	2197	}
1612	}	2198	}
1613	undef $MAP_PREFETCHER;	2199	undef $MAP_PREFETCHER;
1614	};	2200	};
1615	$MAP_PREFETCHER->prio (6);	2201	$MAP_PREFETCHER->prio (6);
…		…
1618	}	2204	}
1619		2205
1620	sub save {	2206	sub save {
1621	my ($self) = @_;	2207	my ($self) = @_;
1622		2208
1623	my $lock = cf::lock_acquire "map_data:" . $self->path;	2209	my $lock = cf::lock_acquire "map_data:$self->{path}";
1624		2210
1625	$self->{last_save} = $cf::RUNTIME;	2211	$self->{last_save} = $cf::RUNTIME;
1626		2212
1627	return unless $self->dirty;	2213	return unless $self->dirty;
1628		2214
…		…
1634	return if $self->{deny_save};	2220	return if $self->{deny_save};
1635		2221
1636	local $self->{last_access} = $self->last_access;#d#	2222	local $self->{last_access} = $self->last_access;#d#
1637		2223
1638	cf::async {	2224	cf::async {
		2225	$Coro::current->{desc} = "map player save";
1639	$_->contr->save for $self->players;	2226	$_->contr->save for $self->players;
1640	};	2227	};
		2228
		2229	cf::get_slot 0.02;
1641		2230
1642	if ($uniq) {	2231	if ($uniq) {
1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2232	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2233	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1645	} else {	2234	} else {
…		…
1651	my ($self) = @_;	2240	my ($self) = @_;
1652		2241
1653	# save first because save cedes	2242	# save first because save cedes
1654	$self->save;	2243	$self->save;
1655		2244
1656	my $lock = cf::lock_acquire "map_data:" . $self->path;	2245	my $lock = cf::lock_acquire "map_data:$self->{path}";
1657		2246
1658	return if $self->players;	2247	return if $self->players;
1659	return if $self->in_memory != cf::MAP_IN_MEMORY;	2248	return if $self->in_memory != cf::MAP_ACTIVE;
1660	return if $self->{deny_save};	2249	return if $self->{deny_save};
1661		2250
		2251	$self->in_memory (cf::MAP_SWAPPED);
		2252
		2253	$self->deactivate;
		2254	$_->clear_links_to ($self) for values %cf::MAP;
1662	$self->clear;	2255	$self->clear;
1663	$self->in_memory (cf::MAP_SWAPPED);
1664	}	2256	}
1665		2257
1666	sub reset_at {	2258	sub reset_at {
1667	my ($self) = @_;	2259	my ($self) = @_;
1668		2260
1669	# TODO: safety, remove and allow resettable per-player maps	2261	# TODO: safety, remove and allow resettable per-player maps
1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1671	return 1e99 if $self->{deny_reset};	2262	return 1e99 if $self->{deny_reset};
1672		2263
1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2264	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2265	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1675		2266
…		…
1686	my ($self) = @_;	2277	my ($self) = @_;
1687		2278
1688	my $lock = cf::lock_acquire "map_data:$self->{path}";	2279	my $lock = cf::lock_acquire "map_data:$self->{path}";
1689		2280
1690	return if $self->players;	2281	return if $self->players;
1691	return if $self->isa ("ext::map_per_player");#d#
1692		2282
1693	warn "resetting map ", $self->path;#d#	2283	warn "resetting map ", $self->path, "\n";
1694		2284
1695	$self->in_memory (cf::MAP_SWAPPED);	2285	$self->in_memory (cf::MAP_SWAPPED);
1696		2286
1697	# need to save uniques path	2287	# need to save uniques path
1698	unless ($self->{deny_save}) {	2288	unless ($self->{deny_save}) {
…		…
1702	if $uniq;	2292	if $uniq;
1703	}	2293	}
1704		2294
1705	delete $cf::MAP{$self->path};	2295	delete $cf::MAP{$self->path};
1706		2296
		2297	$self->deactivate;
		2298	$_->clear_links_to ($self) for values %cf::MAP;
1707	$self->clear;	2299	$self->clear;
1708
1709	$_->clear_links_to ($self) for values %cf::MAP;
1710		2300
1711	$self->unlink_save;	2301	$self->unlink_save;
1712	$self->destroy;	2302	$self->destroy;
1713	}	2303	}
1714		2304
1715	my $nuke_counter = "aaaa";	2305	my $nuke_counter = "aaaa";
1716		2306
1717	sub nuke {	2307	sub nuke {
1718	my ($self) = @_;	2308	my ($self) = @_;
1719		2309
		2310	{
		2311	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2312
1720	delete $cf::MAP{$self->path};	2313	delete $cf::MAP{$self->path};
1721		2314
1722	$self->unlink_save;	2315	$self->unlink_save;
1723		2316
1724	bless $self, "cf::map";	2317	bless $self, "cf::map";
1725	delete $self->{deny_reset};	2318	delete $self->{deny_reset};
1726	$self->{deny_save} = 1;	2319	$self->{deny_save} = 1;
1727	$self->reset_timeout (1);	2320	$self->reset_timeout (1);
1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2321	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1729		2322
1730	$cf::MAP{$self->path} = $self;	2323	$cf::MAP{$self->path} = $self;
		2324	}
1731		2325
1732	$self->reset; # polite request, might not happen	2326	$self->reset; # polite request, might not happen
		2327	}
		2328
		2329	=item $maps = cf::map::tmp_maps
		2330
		2331	Returns an arrayref with all map paths of currently instantiated and saved
		2332	maps. May block.
		2333
		2334	=cut
		2335
		2336	sub tmp_maps() {
		2337	[
		2338	map {
		2339	utf8::decode $_;
		2340	/\.map$/
		2341	? normalise $_
		2342	: ()
		2343	} @{ aio_readdir $TMPDIR or [] }
		2344	]
		2345	}
		2346
		2347	=item $maps = cf::map::random_maps
		2348
		2349	Returns an arrayref with all map paths of currently instantiated and saved
		2350	random maps. May block.
		2351
		2352	=cut
		2353
		2354	sub random_maps() {
		2355	[
		2356	map {
		2357	utf8::decode $_;
		2358	/\.map$/
		2359	? normalise "?random/$_"
		2360	: ()
		2361	} @{ aio_readdir $RANDOMDIR or [] }
		2362	]
1733	}	2363	}
1734		2364
1735	=item cf::map::unique_maps	2365	=item cf::map::unique_maps
1736		2366
1737	Returns an arrayref of paths of all shared maps that have	2367	Returns an arrayref of paths of all shared maps that have
1738	instantiated unique items. May block.	2368	instantiated unique items. May block.
1739		2369
1740	=cut	2370	=cut
1741		2371
1742	sub unique_maps() {	2372	sub unique_maps() {
1743	my $files = aio_readdir $UNIQUEDIR	2373	[
1744	or return;	2374	map {
1745
1746	my @paths;
1747
1748	for (@$files) {
1749	utf8::decode $_;	2375	utf8::decode $_;
1750	next if /\.pst$/;	2376	s/\.map$//; # TODO future compatibility hack
1751	next unless /^$PATH_SEP/o;	2377	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1752		2378	? ()
1753	push @paths, cf::map::normalise $_;	2379	: normalise $_
		2380	} @{ aio_readdir $UNIQUEDIR or [] }
1754	}	2381	]
1755
1756	\@paths
1757	}	2382	}
1758		2383
1759	package cf;	2384	=item cf::map::static_maps
		2385
		2386	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2387	file in the shared directory excluding F</styles> and F</editor>). May
		2388	block.
		2389
		2390	=cut
		2391
		2392	sub static_maps() {
		2393	my @dirs = "";
		2394	my @maps;
		2395
		2396	while (@dirs) {
		2397	my $dir = shift @dirs;
		2398
		2399	next if $dir eq "/styles" || $dir eq "/editor";
		2400
		2401	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2402	or return;
		2403
		2404	for (@$files) {
		2405	s/\.map$// or next;
		2406	utf8::decode $_;
		2407	push @maps, "$dir/$_";
		2408	}
		2409
		2410	push @dirs, map "$dir/$_", @$dirs;
		2411	}
		2412
		2413	\@maps
		2414	}
1760		2415
1761	=back	2416	=back
1762		2417
1763	=head3 cf::object	2418	=head3 cf::object
1764		2419
…		…
1768		2423
1769	=over 4	2424	=over 4
1770		2425
1771	=item $ob->inv_recursive	2426	=item $ob->inv_recursive
1772		2427
1773	Returns the inventory of the object _and_ their inventories, recursively.	2428	Returns the inventory of the object I<and> their inventories, recursively,
		2429	but I<not> the object itself.
1774		2430
1775	=cut	2431	=cut
1776		2432
1777	sub inv_recursive_;	2433	sub inv_recursive_;
1778	sub inv_recursive_ {	2434	sub inv_recursive_ {
…		…
1781		2437
1782	sub inv_recursive {	2438	sub inv_recursive {
1783	inv_recursive_ inv $_[0]	2439	inv_recursive_ inv $_[0]
1784	}	2440	}
1785		2441
		2442	=item $ref = $ob->ref
		2443
		2444	Creates and returns a persistent reference to an object that can be stored as a string.
		2445
		2446	=item $ob = cf::object::deref ($refstring)
		2447
		2448	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2449	even if the object actually exists. May block.
		2450
		2451	=cut
		2452
		2453	sub deref {
		2454	my ($ref) = @_;
		2455
		2456	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2457	my ($uuid, $name) = ($1, $2);
		2458	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2459	or return;
		2460	$pl->ob->uuid eq $uuid
		2461	or return;
		2462
		2463	$pl->ob
		2464	} else {
		2465	warn "$ref: cannot resolve object reference\n";
		2466	undef
		2467	}
		2468	}
		2469
1786	package cf;	2470	package cf;
1787		2471
1788	=back	2472	=back
1789		2473
1790	=head3 cf::object::player	2474	=head3 cf::object::player
…		…
1796	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2480	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1797	can be C<undef>. Does the right thing when the player is currently in a	2481	can be C<undef>. Does the right thing when the player is currently in a
1798	dialogue with the given NPC character.	2482	dialogue with the given NPC character.
1799		2483
1800	=cut	2484	=cut
		2485
		2486	our $SAY_CHANNEL = {
		2487	id => "say",
		2488	title => "Map",
		2489	reply => "say ",
		2490	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2491	};
		2492
		2493	our $CHAT_CHANNEL = {
		2494	id => "chat",
		2495	title => "Chat",
		2496	reply => "chat ",
		2497	tooltip => "Player chat and shouts, global to the server.",
		2498	};
1801		2499
1802	# rough implementation of a future "reply" method that works	2500	# rough implementation of a future "reply" method that works
1803	# with dialog boxes.	2501	# with dialog boxes.
1804	#TODO: the first argument must go, split into a $npc->reply_to ( method	2502	#TODO: the first argument must go, split into a $npc->reply_to ( method
1805	sub cf::object::player::reply($$$;$) {	2503	sub cf::object::player::reply($$$;$) {
…		…
1807		2505
1808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2506	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1809		2507
1810	if ($self->{record_replies}) {	2508	if ($self->{record_replies}) {
1811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2509	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2510
1812	} else {	2511	} else {
		2512	my $pl = $self->contr;
		2513
		2514	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2515	my $dialog = $pl->{npc_dialog};
		2516	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2517
		2518	} else {
1813	$msg = $npc->name . " says: $msg" if $npc;	2519	$msg = $npc->name . " says: $msg" if $npc;
1814	$self->message ($msg, $flags);	2520	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2521	}
1815	}	2522	}
		2523	}
		2524
		2525	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2526
		2527	=cut
		2528
		2529	sub cf::object::send_msg {
		2530	my $pl = shift->contr
		2531	or return;
		2532	$pl->send_msg (@_);
1816	}	2533	}
1817		2534
1818	=item $player_object->may ("access")	2535	=item $player_object->may ("access")
1819		2536
1820	Returns wether the given player is authorized to access resource "access"	2537	Returns wether the given player is authorized to access resource "access"
…		…
1833		2550
1834	=item $player_object->enter_link	2551	=item $player_object->enter_link
1835		2552
1836	Freezes the player and moves him/her to a special map (C<{link}>).	2553	Freezes the player and moves him/her to a special map (C<{link}>).
1837		2554
1838	The player should be reasonably safe there for short amounts of time. You	2555	The player should be reasonably safe there for short amounts of time (e.g.
1839	I<MUST> call C<leave_link> as soon as possible, though.	2556	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2557	though, as the palyer cannot control the character while it is on the link
		2558	map.
1840		2559
1841	Will never block.	2560	Will never block.
1842		2561
1843	=item $player_object->leave_link ($map, $x, $y)	2562	=item $player_object->leave_link ($map, $x, $y)
1844		2563
…		…
1867	$self->deactivate_recursive;	2586	$self->deactivate_recursive;
1868		2587
1869	return if UNIVERSAL::isa $self->map, "ext::map_link";	2588	return if UNIVERSAL::isa $self->map, "ext::map_link";
1870		2589
1871	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2590	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1872	if $self->map;	2591	if $self->map && $self->map->{path} ne "{link}";
1873		2592
1874	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2593	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1875	}	2594	}
1876		2595
1877	sub cf::object::player::leave_link {	2596	sub cf::object::player::leave_link {
1878	my ($self, $map, $x, $y) = @_;	2597	my ($self, $map, $x, $y) = @_;
		2598
		2599	return unless $self->contr->active;
1879		2600
1880	my $link_pos = delete $self->{_link_pos};	2601	my $link_pos = delete $self->{_link_pos};
1881		2602
1882	unless ($map) {	2603	unless ($map) {
1883	# restore original map position	2604	# restore original map position
…		…
1894	($x, $y) = (-1, -1)	2615	($x, $y) = (-1, -1)
1895	unless (defined $x) && (defined $y);	2616	unless (defined $x) && (defined $y);
1896		2617
1897	# use -1 or undef as default coordinates, not 0, 0	2618	# use -1 or undef as default coordinates, not 0, 0
1898	($x, $y) = ($map->enter_x, $map->enter_y)	2619	($x, $y) = ($map->enter_x, $map->enter_y)
1899	if $x <=0 && $y <= 0;	2620	if $x <= 0 && $y <= 0;
1900		2621
1901	$map->load;	2622	$map->load;
1902	$map->load_diag;	2623	$map->load_neighbours;
1903		2624
1904	return unless $self->contr->active;	2625	return unless $self->contr->active;
1905	$self->activate_recursive;
1906		2626
1907	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2627	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1908	$self->enter_map ($map, $x, $y);	2628	$self->enter_map ($map, $x, $y);
1909	}
1910		2629
1911	cf::player->attach (	2630	# only activate afterwards, to support waiting in hooks
1912	on_logout => sub {	2631	$self->activate_recursive;
1913	my ($pl) = @_;	2632	}
1914		2633
1915	# abort map switching before logout	2634	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1916	if ($pl->ob->{_link_pos}) {
1917	cf::sync_job {
1918	$pl->ob->leave_link
1919	};
1920	}
1921	},
1922	on_login => sub {
1923	my ($pl) = @_;
1924		2635
1925	# try to abort aborted map switching on player login :)	2636	Moves the player to the given map-path and coordinates by first freezing
1926	# should happen only on crashes	2637	her, loading and preparing them map, calling the provided $check callback
1927	if ($pl->ob->{_link_pos}) {	2638	that has to return the map if sucecssful, and then unfreezes the player on
1928	$pl->ob->enter_link;	2639	the new (success) or old (failed) map position. In either case, $done will
1929	(async {	2640	be called at the end of this process.
1930	$pl->ob->reply (undef,
1931	"There was an internal problem at your last logout, "
1932	. "the server will try to bring you to your intended destination in a second.",
1933	cf::NDI_RED);
1934	# we need this sleep as the login has a concurrent enter_exit running
1935	# and this sleep increases chances of the player not ending up in scorn
1936	Coro::Timer::sleep 1;
1937	$pl->ob->leave_link;
1938	})->prio (2);
1939	}
1940	},
1941	);
1942		2641
1943	=item $player_object->goto ($path, $x, $y)	2642	Note that $check will be called with a potentially non-loaded map, so if
		2643	it needs a loaded map it has to call C<< ->load >>.
1944		2644
1945	=cut	2645	=cut
		2646
		2647	our $GOTOGEN;
1946		2648
1947	sub cf::object::player::goto {	2649	sub cf::object::player::goto {
1948	my ($self, $path, $x, $y) = @_;	2650	my ($self, $path, $x, $y, $check, $done) = @_;
		2651
		2652	# do generation counting so two concurrent goto's will be executed in-order
		2653	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1949		2654
1950	$self->enter_link;	2655	$self->enter_link;
1951		2656
1952	(async {	2657	(async {
		2658	$Coro::current->{desc} = "player::goto $path $x $y";
		2659
		2660	# *tag paths override both path and x|y
		2661	if ($path =~ /^\*(.*)$/) {
		2662	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2663	my $ob = $obs[rand @obs];
		2664
		2665	# see if we actually can go there
		2666	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2667	$ob = $obs[rand @obs];
		2668	} else {
		2669	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2670	}
		2671	# else put us there anyways for now #d#
		2672
		2673	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2674	} else {
		2675	($path, $x, $y) = (undef, undef, undef);
		2676	}
		2677	}
		2678
1953	my $map = eval {	2679	my $map = eval {
1954	my $map = cf::map::find $path;	2680	my $map = defined $path ? cf::map::find $path : undef;
		2681
		2682	if ($map) {
1955	$map = $map->customise_for ($self) if $map;	2683	$map = $map->customise_for ($self);
		2684	$map = $check->($map) if $check && $map;
		2685	} else {
		2686	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2687	}
		2688
1956	$map	2689	$map
		2690	};
		2691
		2692	if ($@) {
		2693	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2694	LOG llevError | logBacktrace, Carp::longmess $@;
1957	} or	2695	}
1958	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1959		2696
		2697	if ($gen == $self->{_goto_generation}) {
		2698	delete $self->{_goto_generation};
1960	$self->leave_link ($map, $x, $y);	2699	$self->leave_link ($map, $x, $y);
		2700	}
		2701
		2702	$done->() if $done;
1961	})->prio (1);	2703	})->prio (1);
1962	}	2704	}
1963		2705
1964	=item $player_object->enter_exit ($exit_object)	2706	=item $player_object->enter_exit ($exit_object)
1965		2707
…		…
1985	}	2727	}
1986		2728
1987	sub prepare_random_map {	2729	sub prepare_random_map {
1988	my ($exit) = @_;	2730	my ($exit) = @_;
1989		2731
1990	my $guard = cf::lock_acquire "exit_prepare:$exit";
1991
1992	# all this does is basically replace the /! path by	2732	# all this does is basically replace the /! path by
1993	# a new random map path (?random/...) with a seed	2733	# a new random map path (?random/...) with a seed
1994	# that depends on the exit object	2734	# that depends on the exit object
1995		2735
1996	my $rmp = parse_random_map_params $exit->msg;	2736	my $rmp = parse_random_map_params $exit->msg;
…		…
1998	if ($exit->map) {	2738	if ($exit->map) {
1999	$rmp->{region} = $exit->region->name;	2739	$rmp->{region} = $exit->region->name;
2000	$rmp->{origin_map} = $exit->map->path;	2740	$rmp->{origin_map} = $exit->map->path;
2001	$rmp->{origin_x} = $exit->x;	2741	$rmp->{origin_x} = $exit->x;
2002	$rmp->{origin_y} = $exit->y;	2742	$rmp->{origin_y} = $exit->y;
		2743
		2744	$exit->map->touch;
2003	}	2745	}
2004		2746
2005	$rmp->{random_seed} ||= $exit->random_seed;	2747	$rmp->{random_seed} ||= $exit->random_seed;
2006		2748
2007	my $data = cf::to_json $rmp;	2749	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2008	my $md5 = Digest::MD5::md5_hex $data;	2750	my $md5 = Digest::MD5::md5_hex $data;
2009	my $meta = "$RANDOMDIR/$md5.meta";	2751	my $meta = "$RANDOMDIR/$md5.meta";
2010		2752
2011	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2753	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2012	aio_write $fh, 0, (length $data), $data, 0;	2754	aio_write $fh, 0, (length $data), $data, 0;
2013	undef $fh;	2755	undef $fh;
2014	aio_rename "$meta~", $meta;	2756	aio_rename "$meta~", $meta;
2015		2757
		2758	my $slaying = "?random/$md5";
		2759
		2760	if ($exit->valid) {
2016	$exit->slaying ("?random/$md5");	2761	$exit->slaying ("?random/$md5");
2017	$exit->msg (undef);	2762	$exit->msg (undef);
		2763	}
2018	}	2764	}
2019	}	2765	}
2020		2766
2021	sub cf::object::player::enter_exit {	2767	sub cf::object::player::enter_exit {
2022	my ($self, $exit) = @_;	2768	my ($self, $exit) = @_;
2023		2769
2024	return unless $self->type == cf::PLAYER;	2770	return unless $self->type == cf::PLAYER;
2025		2771
2026	if ($exit->slaying eq "/!") {
2027	#TODO: this should de-fi-ni-te-ly not be a sync-job
2028	# the problem is that $exit might not survive long enough
2029	# so it needs to be done right now, right here
2030	cf::sync_job { prepare_random_map $exit };
2031	}
2032
2033	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2034	my $hp = $exit->stats->hp;
2035	my $sp = $exit->stats->sp;
2036
2037	$self->enter_link;	2772	$self->enter_link;
2038		2773
2039	(async {	2774	(async {
2040	$self->deactivate_recursive; # just to be sure	2775	$Coro::current->{desc} = "enter_exit";
		2776
2041	unless (eval {	2777	unless (eval {
		2778	$self->deactivate_recursive; # just to be sure
		2779
		2780	# random map handling
		2781	{
		2782	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2783
		2784	prepare_random_map $exit
		2785	if $exit->slaying eq "/!";
		2786	}
		2787
		2788	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2789	my $x = $exit->stats->hp;
		2790	my $y = $exit->stats->sp;
		2791
2042	$self->goto ($slaying, $hp, $sp);	2792	$self->goto ($map, $x, $y);
2043		2793
		2794	# if exit is damned, update players death & WoR home-position
		2795	$self->contr->savebed ($map, $x, $y)
		2796	if $exit->flag (cf::FLAG_DAMNED);
		2797
2044	1;	2798	1
2045	}) {	2799	}) {
2046	$self->message ("Something went wrong deep within the crossfire server. "	2800	$self->message ("Something went wrong deep within the deliantra server. "
2047	. "I'll try to bring you back to the map you were before. "	2801	. "I'll try to bring you back to the map you were before. "
2048	. "Please report this to the dungeon master!",	2802	. "Please report this to the dungeon master!",
2049	cf::NDI_UNIQUE | cf::NDI_RED);	2803	cf::NDI_UNIQUE | cf::NDI_RED);
2050		2804
2051	warn "ERROR in enter_exit: $@";	2805	warn "ERROR in enter_exit: $@";
…		…
2070		2824
2071	utf8::encode $text;	2825	utf8::encode $text;
2072	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2826	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2073	}	2827	}
2074		2828
		2829	=item $client->send_big_packet ($pkt)
		2830
		2831	Like C<send_packet>, but tries to compress large packets, and fragments
		2832	them as required.
		2833
		2834	=cut
		2835
		2836	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2837
		2838	sub cf::client::send_big_packet {
		2839	my ($self, $pkt) = @_;
		2840
		2841	# try lzf for large packets
		2842	$pkt = "lzf " . Compress::LZF::compress $pkt
		2843	if 1024 <= length $pkt and $self->{can_lzf};
		2844
		2845	# split very large packets
		2846	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2847	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2848	$pkt = "frag";
		2849	}
		2850
		2851	$self->send_packet ($pkt);
		2852	}
		2853
		2854	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2855
		2856	Send a drawinfo or msg packet to the client, formatting the msg for the
		2857	client if neccessary. C<$type> should be a string identifying the type of
		2858	the message, with C<log> being the default. If C<$color> is negative, suppress
		2859	the message unless the client supports the msg packet.
		2860
		2861	=cut
		2862
		2863	# non-persistent channels (usually the info channel)
		2864	our %CHANNEL = (
		2865	"c/motd" => {
		2866	id => "infobox",
		2867	title => "MOTD",
		2868	reply => undef,
		2869	tooltip => "The message of the day",
		2870	},
		2871	"c/identify" => {
		2872	id => "infobox",
		2873	title => "Identify",
		2874	reply => undef,
		2875	tooltip => "Items recently identified",
		2876	},
		2877	"c/examine" => {
		2878	id => "infobox",
		2879	title => "Examine",
		2880	reply => undef,
		2881	tooltip => "Signs and other items you examined",
		2882	},
		2883	"c/shopinfo" => {
		2884	id => "infobox",
		2885	title => "Shop Info",
		2886	reply => undef,
		2887	tooltip => "What your bargaining skill tells you about the shop",
		2888	},
		2889	"c/book" => {
		2890	id => "infobox",
		2891	title => "Book",
		2892	reply => undef,
		2893	tooltip => "The contents of a note or book",
		2894	},
		2895	"c/lookat" => {
		2896	id => "infobox",
		2897	title => "Look",
		2898	reply => undef,
		2899	tooltip => "What you saw there",
		2900	},
		2901	"c/who" => {
		2902	id => "infobox",
		2903	title => "Players",
		2904	reply => undef,
		2905	tooltip => "Shows players who are currently online",
		2906	},
		2907	"c/body" => {
		2908	id => "infobox",
		2909	title => "Body Parts",
		2910	reply => undef,
		2911	tooltip => "Shows which body parts you posess and are available",
		2912	},
		2913	"c/statistics" => {
		2914	id => "infobox",
		2915	title => "Statistics",
		2916	reply => undef,
		2917	tooltip => "Shows your primary statistics",
		2918	},
		2919	"c/skills" => {
		2920	id => "infobox",
		2921	title => "Skills",
		2922	reply => undef,
		2923	tooltip => "Shows your experience per skill and item power",
		2924	},
		2925	"c/shopitems" => {
		2926	id => "infobox",
		2927	title => "Shop Items",
		2928	reply => undef,
		2929	tooltip => "Shows the items currently for sale in this shop",
		2930	},
		2931	"c/resistances" => {
		2932	id => "infobox",
		2933	title => "Resistances",
		2934	reply => undef,
		2935	tooltip => "Shows your resistances",
		2936	},
		2937	"c/pets" => {
		2938	id => "infobox",
		2939	title => "Pets",
		2940	reply => undef,
		2941	tooltip => "Shows information abotu your pets/a specific pet",
		2942	},
		2943	"c/perceiveself" => {
		2944	id => "infobox",
		2945	title => "Perceive Self",
		2946	reply => undef,
		2947	tooltip => "You gained detailed knowledge about yourself",
		2948	},
		2949	"c/uptime" => {
		2950	id => "infobox",
		2951	title => "Uptime",
		2952	reply => undef,
		2953	tooltip => "How long the server has been running since last restart",
		2954	},
		2955	"c/mapinfo" => {
		2956	id => "infobox",
		2957	title => "Map Info",
		2958	reply => undef,
		2959	tooltip => "Information related to the maps",
		2960	},
		2961	"c/party" => {
		2962	id => "party",
		2963	title => "Party",
		2964	reply => "gsay ",
		2965	tooltip => "Messages and chat related to your party",
		2966	},
		2967	"c/death" => {
		2968	id => "death",
		2969	title => "Death",
		2970	reply => undef,
		2971	tooltip => "Reason for and more info about your most recent death",
		2972	},
		2973	"c/say" => $SAY_CHANNEL,
		2974	"c/chat" => $CHAT_CHANNEL,
		2975	);
		2976
		2977	sub cf::client::send_msg {
		2978	my ($self, $channel, $msg, $color, @extra) = @_;
		2979
		2980	$msg = $self->pl->expand_cfpod ($msg)
		2981	unless $color & cf::NDI_VERBATIM;
		2982
		2983	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2984
		2985	# check predefined channels, for the benefit of C
		2986	if ($CHANNEL{$channel}) {
		2987	$channel = $CHANNEL{$channel};
		2988
		2989	$self->ext_msg (channel_info => $channel);
		2990	$channel = $channel->{id};
		2991
		2992	} elsif (ref $channel) {
		2993	# send meta info to client, if not yet sent
		2994	unless (exists $self->{channel}{$channel->{id}}) {
		2995	$self->{channel}{$channel->{id}} = $channel;
		2996	$self->ext_msg (channel_info => $channel);
		2997	}
		2998
		2999	$channel = $channel->{id};
		3000	}
		3001
		3002	return unless @extra || length $msg;
		3003
		3004	# default colour, mask it out
		3005	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3006	if $color & cf::NDI_DEF;
		3007
		3008	my $pkt = "msg "
		3009	. $self->{json_coder}->encode (
		3010	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3011	);
		3012
		3013	$self->send_big_packet ($pkt);
		3014	}
		3015
2075	=item $client->ext_event ($type, %msg)	3016	=item $client->ext_msg ($type, @msg)
2076		3017
2077	Sends an exti event to the client.	3018	Sends an ext event to the client.
2078		3019
2079	=cut	3020	=cut
2080		3021
2081	sub cf::client::ext_event($$%) {	3022	sub cf::client::ext_msg($$@) {
2082	my ($self, $type, %msg) = @_;	3023	my ($self, $type, @msg) = @_;
2083		3024
		3025	if ($self->extcmd == 2) {
		3026	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3027	} elsif ($self->extcmd == 1) { # TODO: remove
2084	$msg{msgtype} = "event_$type";	3028	push @msg, msgtype => "event_$type";
2085	$self->send_packet ("ext " . cf::to_json \%msg);	3029	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3030	}
		3031	}
		3032
		3033	=item $client->ext_reply ($msgid, @msg)
		3034
		3035	Sends an ext reply to the client.
		3036
		3037	=cut
		3038
		3039	sub cf::client::ext_reply($$@) {
		3040	my ($self, $id, @msg) = @_;
		3041
		3042	if ($self->extcmd == 2) {
		3043	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3044	} elsif ($self->extcmd == 1) {
		3045	#TODO: version 1, remove
		3046	unshift @msg, msgtype => "reply", msgid => $id;
		3047	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3048	}
2086	}	3049	}
2087		3050
2088	=item $success = $client->query ($flags, "text", \&cb)	3051	=item $success = $client->query ($flags, "text", \&cb)
2089		3052
2090	Queues a query to the client, calling the given callback with	3053	Queues a query to the client, calling the given callback with
2091	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3054	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2092	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3055	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2093		3056
2094	Queries can fail, so check the return code. Or don't, as queries will become	3057	Queries can fail, so check the return code. Or don't, as queries will
2095	reliable at some point in the future.	3058	become reliable at some point in the future.
2096		3059
2097	=cut	3060	=cut
2098		3061
2099	sub cf::client::query {	3062	sub cf::client::query {
2100	my ($self, $flags, $text, $cb) = @_;	3063	my ($self, $flags, $text, $cb) = @_;
…		…
2108	utf8::encode $text;	3071	utf8::encode $text;
2109	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3072	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2110		3073
2111	$self->send_packet ($self->{query_queue}[0][0])	3074	$self->send_packet ($self->{query_queue}[0][0])
2112	if @{ $self->{query_queue} } == 1;	3075	if @{ $self->{query_queue} } == 1;
		3076
		3077	1
2113	}	3078	}
2114		3079
2115	cf::client->attach (	3080	cf::client->attach (
		3081	on_connect => sub {
		3082	my ($ns) = @_;
		3083
		3084	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3085	},
2116	on_reply => sub {	3086	on_reply => sub {
2117	my ($ns, $msg) = @_;	3087	my ($ns, $msg) = @_;
2118		3088
2119	# this weird shuffling is so that direct followup queries	3089	# this weird shuffling is so that direct followup queries
2120	# get handled first	3090	# get handled first
…		…
2132	} else {	3102	} else {
2133	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3103	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2134	}	3104	}
2135	}	3105	}
2136	},	3106	},
		3107	on_exticmd => sub {
		3108	my ($ns, $buf) = @_;
		3109
		3110	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3111
		3112	if (ref $msg) {
		3113	my ($type, $reply, @payload) =
		3114	"ARRAY" eq ref $msg
		3115	? @$msg
		3116	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3117
		3118	my @reply;
		3119
		3120	if (my $cb = $EXTICMD{$type}) {
		3121	@reply = $cb->($ns, @payload);
		3122	}
		3123
		3124	$ns->ext_reply ($reply, @reply)
		3125	if $reply;
		3126
		3127	} else {
		3128	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3129	}
		3130
		3131	cf::override;
		3132	},
2137	);	3133	);
2138		3134
2139	=item $client->async (\&cb)	3135	=item $client->async (\&cb)
2140		3136
2141	Create a new coroutine, running the specified callback. The coroutine will	3137	Create a new coroutine, running the specified callback. The coroutine will
…		…
2157		3153
2158	$coro	3154	$coro
2159	}	3155	}
2160		3156
2161	cf::client->attach (	3157	cf::client->attach (
2162	on_destroy => sub {	3158	on_client_destroy => sub {
2163	my ($ns) = @_;	3159	my ($ns) = @_;
2164		3160
2165	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3161	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2166	},	3162	},
2167	);	3163	);
…		…
2182	our $safe = new Safe "safe";	3178	our $safe = new Safe "safe";
2183	our $safe_hole = new Safe::Hole;	3179	our $safe_hole = new Safe::Hole;
2184		3180
2185	$SIG{FPE} = 'IGNORE';	3181	$SIG{FPE} = 'IGNORE';
2186		3182
2187	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3183	$safe->permit_only (Opcode::opset qw(
		3184	:base_core :base_mem :base_orig :base_math :base_loop
		3185	grepstart grepwhile mapstart mapwhile
		3186	sort time
		3187	));
2188		3188
2189	# here we export the classes and methods available to script code	3189	# here we export the classes and methods available to script code
2190		3190
2191	=pod	3191	=pod
2192		3192
2193	The following functions and methods are available within a safe environment:	3193	The following functions and methods are available within a safe environment:
2194		3194
2195	cf::object contr pay_amount pay_player map	3195	cf::object
		3196	contr pay_amount pay_player map x y force_find force_add destroy
		3197	insert remove name archname title slaying race decrease split
		3198	value
		3199
2196	cf::object::player player	3200	cf::object::player
2197	cf::player peaceful	3201	player
2198	cf::map trigger	3202
		3203	cf::player
		3204	peaceful
		3205
		3206	cf::map
		3207	trigger
2199		3208
2200	=cut	3209	=cut
2201		3210
2202	for (	3211	for (
2203	["cf::object" => qw(contr pay_amount pay_player map)],	3212	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3213	insert remove inv nrof name archname title slaying race
		3214	decrease split destroy change_exp value msg lore send_msg)],
2204	["cf::object::player" => qw(player)],	3215	["cf::object::player" => qw(player)],
2205	["cf::player" => qw(peaceful)],	3216	["cf::player" => qw(peaceful send_msg)],
2206	["cf::map" => qw(trigger)],	3217	["cf::map" => qw(trigger)],
2207	) {	3218	) {
2208	no strict 'refs';	3219	no strict 'refs';
2209	my ($pkg, @funs) = @$_;	3220	my ($pkg, @funs) = @$_;
2210	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3221	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2228		3239
2229	my $qcode = $code;	3240	my $qcode = $code;
2230	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3241	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2231	$qcode =~ s/\n/\\n/g;	3242	$qcode =~ s/\n/\\n/g;
2232		3243
		3244	%vars = (_dummy => 0) unless %vars;
		3245
		3246	my @res;
2233	local $_;	3247	local $_;
2234	local @safe::cf::_safe_eval_args = values %vars;
2235		3248
2236	my $eval =	3249	my $eval =
2237	"do {\n"	3250	"do {\n"
2238	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3251	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2239	. "#line 0 \"{$qcode}\"\n"	3252	. "#line 0 \"{$qcode}\"\n"
2240	. $code	3253	. $code
2241	. "\n}"	3254	. "\n}"
2242	;	3255	;
2243		3256
		3257	if ($CFG{safe_eval}) {
2244	sub_generation_inc;	3258	sub_generation_inc;
		3259	local @safe::cf::_safe_eval_args = values %vars;
2245	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3260	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2246	sub_generation_inc;	3261	sub_generation_inc;
		3262	} else {
		3263	local @cf::_safe_eval_args = values %vars;
		3264	@res = wantarray ? eval eval : scalar eval $eval;
		3265	}
2247		3266
2248	if ($@) {	3267	if ($@) {
2249	warn "$@";	3268	warn "$@";
2250	warn "while executing safe code '$code'\n";	3269	warn "while executing safe code '$code'\n";
2251	warn "with arguments " . (join " ", %vars) . "\n";	3270	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2270	=cut	3289	=cut
2271		3290
2272	sub register_script_function {	3291	sub register_script_function {
2273	my ($fun, $cb) = @_;	3292	my ($fun, $cb) = @_;
2274		3293
2275	no strict 'refs';	3294	$fun = "safe::$fun" if $CFG{safe_eval};
2276	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3295	*$fun = $safe_hole->wrap ($cb);
2277	}	3296	}
2278		3297
2279	=back	3298	=back
2280		3299
2281	=cut	3300	=cut
2282
2283	#############################################################################
2284
2285	=head2 EXTENSION DATABASE SUPPORT
2286
2287	Crossfire maintains a very simple database for extension use. It can
2288	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2289	convert to/from binary).
2290
2291	The parameter C<$family> should best start with the name of the extension
2292	using it, it should be unique.
2293
2294	=over 4
2295
2296	=item $value = cf::db_get $family => $key
2297
2298	Returns a single value from the database.
2299
2300	=item cf::db_put $family => $key => $value
2301
2302	Stores the given C<$value> in the family.
2303
2304	=cut
2305
2306	our $DB;
2307
2308	sub db_init {
2309	unless ($DB) {
2310	$DB = BDB::db_create $DB_ENV;
2311
2312	cf::sync_job {
2313	eval {
2314	$DB->set_flags (BDB::CHKSUM);
2315
2316	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2317	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2318	cf::cleanup "db_open(db): $!" if $!;
2319	};
2320	cf::cleanup "db_open(db): $@" if $@;
2321	};
2322	}
2323	}
2324
2325	sub db_get($$) {
2326	my $key = "$_[0]/$_[1]";
2327
2328	cf::sync_job {
2329	BDB::db_get $DB, undef, $key, my $data;
2330
2331	$! ? ()
2332	: $data
2333	}
2334	}
2335
2336	sub db_put($$$) {
2337	BDB::dbreq_pri 4;
2338	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2339	}
2340
2341	=item cf::cache $id => [$paths...], $processversion => $process
2342
2343	Generic caching function that returns the value of the resource $id,
2344	caching and regenerating as required.
2345
2346	This function can block.
2347
2348	=cut
2349
2350	sub cache {
2351	my ($id, $src, $processversion, $process) = @_;
2352
2353	my $meta =
2354	join "\x00",
2355	$processversion,
2356	map {
2357	aio_stat $_
2358	and Carp::croak "$_: $!";
2359
2360	($_, (stat _)[7,9])
2361	} @$src;
2362
2363	my $dbmeta = db_get cache => "$id/meta";
2364	if ($dbmeta ne $meta) {
2365	# changed, we may need to process
2366
2367	my @data;
2368	my $md5;
2369
2370	for (0 .. $#$src) {
2371	0 <= aio_load $src->[$_], $data[$_]
2372	or Carp::croak "$src->[$_]: $!";
2373	}
2374
2375	# if processing is expensive, check
2376	# checksum first
2377	if (1) {
2378	$md5 =
2379	join "\x00",
2380	$processversion,
2381	map {
2382	Coro::cede;
2383	($src->[$_], Digest::MD5::md5_hex $data[$_])
2384	} 0.. $#$src;
2385
2386
2387	my $dbmd5 = db_get cache => "$id/md5";
2388	if ($dbmd5 eq $md5) {
2389	db_put cache => "$id/meta", $meta;
2390
2391	return db_get cache => "$id/data";
2392	}
2393	}
2394
2395	my $t1 = Time::HiRes::time;
2396	my $data = $process->(\@data);
2397	my $t2 = Time::HiRes::time;
2398
2399	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2400
2401	db_put cache => "$id/data", $data;
2402	db_put cache => "$id/md5" , $md5;
2403	db_put cache => "$id/meta", $meta;
2404
2405	return $data;
2406	}
2407
2408	db_get cache => "$id/data"
2409	}
2410
2411	=item fork_call { }, $args
2412
2413	Executes the given code block with the given arguments in a seperate
2414	process, returning the results. Everything must be serialisable with
2415	Coro::Storable. May, of course, block. Note that the executed sub may
2416	never block itself or use any form of Event handling.
2417
2418	=cut
2419
2420	sub fork_call(&@) {
2421	my ($cb, @args) = @_;
2422
2423	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2424	# or die "socketpair: $!";
2425	pipe my $fh1, my $fh2
2426	or die "pipe: $!";
2427
2428	if (my $pid = fork) {
2429	close $fh2;
2430
2431	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2432	$res = Coro::Storable::thaw $res;
2433
2434	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2435
2436	die $$res unless "ARRAY" eq ref $res;
2437
2438	return wantarray ? @$res : $res->[-1];
2439	} else {
2440	local $SIG{__WARN__};
2441	eval {
2442	local $SIG{__DIE__};
2443	close $fh1;
2444
2445	my @res = eval { $cb->(@args) };
2446	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2447	};
2448
2449	warn $@ if $@;
2450	_exit 0;
2451	}
2452	}
2453
2454
2455		3301
2456	#############################################################################	3302	#############################################################################
2457	# the server's init and main functions	3303	# the server's init and main functions
2458		3304
2459	sub load_facedata($) {	3305	sub load_facedata($) {
2460	my ($path) = @_;	3306	my ($path) = @_;
		3307
		3308	# HACK to clear player env face cache, we need some signal framework
		3309	# for this (global event?)
		3310	%ext::player_env::MUSIC_FACE_CACHE = ();
		3311
		3312	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2461		3313
2462	warn "loading facedata from $path\n";	3314	warn "loading facedata from $path\n";
2463		3315
2464	my $facedata;	3316	my $facedata;
2465	0 < aio_load $path, $facedata	3317	0 < aio_load $path, $facedata
…		…
2468	$facedata = Coro::Storable::thaw $facedata;	3320	$facedata = Coro::Storable::thaw $facedata;
2469		3321
2470	$facedata->{version} == 2	3322	$facedata->{version} == 2
2471	or cf::cleanup "$path: version mismatch, cannot proceed.";	3323	or cf::cleanup "$path: version mismatch, cannot proceed.";
2472		3324
		3325	# patch in the exptable
		3326	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3327	$facedata->{resource}{"res/exp_table"} = {
		3328	type => FT_RSRC,
		3329	data => $exp_table,
		3330	hash => (Digest::MD5::md5 $exp_table),
		3331	};
		3332	cf::cede_to_tick;
		3333
2473	{	3334	{
2474	my $faces = $facedata->{faceinfo};	3335	my $faces = $facedata->{faceinfo};
2475		3336
2476	while (my ($face, $info) = each %$faces) {	3337	while (my ($face, $info) = each %$faces) {
2477	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3338	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3339
2478	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3340	cf::face::set_visibility $idx, $info->{visibility};
		3341	cf::face::set_magicmap $idx, $info->{magicmap};
2479	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3342	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2480	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3343	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2481	Coro::cede;	3344
		3345	cf::cede_to_tick;
2482	}	3346	}
2483		3347
2484	while (my ($face, $info) = each %$faces) {	3348	while (my ($face, $info) = each %$faces) {
2485	next unless $info->{smooth};	3349	next unless $info->{smooth};
		3350
2486	my $idx = cf::face::find $face	3351	my $idx = cf::face::find $face
2487	or next;	3352	or next;
		3353
2488	if (my $smooth = cf::face::find $info->{smooth}) {	3354	if (my $smooth = cf::face::find $info->{smooth}) {
		3355	cf::face::set_smooth $idx, $smooth;
2489	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3356	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2490	} else {	3357	} else {
2491	warn "smooth face '$info->{smooth}' not found for face '$face'";	3358	warn "smooth face '$info->{smooth}' not found for face '$face'";
2492	}	3359	}
2493	Coro::cede;	3360
		3361	cf::cede_to_tick;
2494	}	3362	}
2495	}	3363	}
2496		3364
2497	{	3365	{
2498	my $anims = $facedata->{animinfo};	3366	my $anims = $facedata->{animinfo};
2499		3367
2500	while (my ($anim, $info) = each %$anims) {	3368	while (my ($anim, $info) = each %$anims) {
2501	cf::anim::set $anim, $info->{frames}, $info->{facings};	3369	cf::anim::set $anim, $info->{frames}, $info->{facings};
2502	Coro::cede;	3370	cf::cede_to_tick;
2503	}	3371	}
2504		3372
2505	cf::anim::invalidate_all; # d'oh	3373	cf::anim::invalidate_all; # d'oh
2506	}	3374	}
2507		3375
		3376	{
		3377	my $res = $facedata->{resource};
		3378
		3379	while (my ($name, $info) = each %$res) {
		3380	if (defined $info->{type}) {
		3381	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3382
		3383	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3384	cf::face::set_type $idx, $info->{type};
		3385	} else {
		3386	$RESOURCE{$name} = $info;
		3387	}
		3388
		3389	cf::cede_to_tick;
		3390	}
		3391	}
		3392
		3393	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3394
2508	1	3395	1
2509	}	3396	}
2510		3397
		3398	cf::global->attach (on_resource_update => sub {
		3399	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3400	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3401
		3402	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3403	my $sound = $soundconf->{compat}[$_]
		3404	or next;
		3405
		3406	my $face = cf::face::find "sound/$sound->[1]";
		3407	cf::sound::set $sound->[0] => $face;
		3408	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3409	}
		3410
		3411	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3412	my $face = cf::face::find "sound/$v";
		3413	cf::sound::set $k => $face;
		3414	}
		3415	}
		3416	});
		3417
		3418	register_exticmd fx_want => sub {
		3419	my ($ns, $want) = @_;
		3420
		3421	while (my ($k, $v) = each %$want) {
		3422	$ns->fx_want ($k, $v);
		3423	}
		3424	};
		3425
		3426	sub load_resource_file($) {
		3427	my $guard = lock_acquire "load_resource_file";
		3428
		3429	my $status = load_resource_file_ $_[0];
		3430	get_slot 0.1, 100;
		3431	cf::arch::commit_load;
		3432
		3433	$status
		3434	}
		3435
2511	sub reload_regions {	3436	sub reload_regions {
		3437	# HACK to clear player env face cache, we need some signal framework
		3438	# for this (global event?)
		3439	%ext::player_env::MUSIC_FACE_CACHE = ();
		3440
2512	load_resource_file "$MAPDIR/regions"	3441	load_resource_file "$MAPDIR/regions"
2513	or die "unable to load regions file\n";	3442	or die "unable to load regions file\n";
		3443
		3444	for (cf::region::list) {
		3445	$_->{match} = qr/$_->{match}/
		3446	if exists $_->{match};
		3447	}
2514	}	3448	}
2515		3449
2516	sub reload_facedata {	3450	sub reload_facedata {
2517	load_facedata "$DATADIR/facedata"	3451	load_facedata "$DATADIR/facedata"
2518	or die "unable to load facedata\n";	3452	or die "unable to load facedata\n";
…		…
2529	}	3463	}
2530		3464
2531	sub reload_resources {	3465	sub reload_resources {
2532	warn "reloading resource files...\n";	3466	warn "reloading resource files...\n";
2533		3467
2534	reload_regions;
2535	reload_facedata;	3468	reload_facedata;
2536	reload_archetypes;	3469	reload_archetypes;
		3470	reload_regions;
2537	reload_treasures;	3471	reload_treasures;
2538		3472
2539	warn "finished reloading resource files\n";	3473	warn "finished reloading resource files\n";
2540	}	3474	}
2541		3475
2542	sub init {	3476	sub reload_config {
2543	reload_resources;	3477	warn "reloading config file...\n";
2544	}
2545		3478
2546	sub cfg_load {
2547	open my $fh, "<:utf8", "$CONFDIR/config"	3479	open my $fh, "<:utf8", "$CONFDIR/config"
2548	or return;	3480	or return;
2549		3481
2550	local $/;	3482	local $/;
2551	*CFG = YAML::Syck::Load <$fh>;	3483	*CFG = YAML::XS::Load scalar <$fh>;
2552		3484
2553	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3485	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2554		3486
2555	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3487	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2556	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3488	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2560	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3492	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2561	and die "WARNING: m(un)lockall failed: $!\n";	3493	and die "WARNING: m(un)lockall failed: $!\n";
2562	};	3494	};
2563	warn $@ if $@;	3495	warn $@ if $@;
2564	}	3496	}
		3497
		3498	warn "finished reloading resource files\n";
		3499	}
		3500
		3501	sub pidfile() {
		3502	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3503	or die "$PIDFILE: $!";
		3504	flock $fh, &Fcntl::LOCK_EX
		3505	or die "$PIDFILE: flock: $!";
		3506	$fh
		3507	}
		3508
		3509	# make sure only one server instance is running at any one time
		3510	sub atomic {
		3511	my $fh = pidfile;
		3512
		3513	my $pid = <$fh>;
		3514	kill 9, $pid if $pid > 0;
		3515
		3516	seek $fh, 0, 0;
		3517	print $fh $$;
		3518	}
		3519
		3520	sub main_loop {
		3521	warn "EV::loop starting\n";
		3522	if (1) {
		3523	EV::loop;
		3524	}
		3525	warn "EV::loop returned\n";
		3526	goto &main_loop unless $REALLY_UNLOOP;
2565	}	3527	}
2566		3528
2567	sub main {	3529	sub main {
		3530	cf::init_globals; # initialise logging
		3531
		3532	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3533	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3534	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3535	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3536
		3537	cf::init_experience;
		3538	cf::init_anim;
		3539	cf::init_attackmess;
		3540	cf::init_dynamic;
		3541
		3542	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3543
2568	# we must not ever block the main coroutine	3544	# we must not ever block the main coroutine
2569	local $Coro::idle = sub {	3545	local $Coro::idle = sub {
2570	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3546	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2571	(async {	3547	(async {
2572	Event::one_event;	3548	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3549	EV::loop EV::LOOP_ONESHOT;
2573	})->prio (Coro::PRIO_MAX);	3550	})->prio (Coro::PRIO_MAX);
2574	};	3551	};
2575		3552
2576	cfg_load;	3553	evthread_start IO::AIO::poll_fileno;
		3554
		3555	cf::sync_job {
		3556	cf::load_settings;
		3557	cf::load_materials;
		3558
		3559	reload_resources;
		3560	reload_config;
2577	db_init;	3561	db_init;
		3562
		3563	cf::init_uuid;
		3564	cf::init_signals;
		3565	cf::init_skills;
		3566
		3567	cf::init_beforeplay;
		3568
		3569	atomic;
		3570
2578	load_extensions;	3571	load_extensions;
2579		3572
2580	$TICK_WATCHER->start;	3573	utime time, time, $RUNTIMEFILE;
2581	Event::loop;	3574
		3575	# no (long-running) fork's whatsoever before this point(!)
		3576	use POSIX ();
		3577	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3578
		3579	(pop @POST_INIT)->(0) while @POST_INIT;
		3580	};
		3581
		3582	main_loop;
2582	}	3583	}
2583		3584
2584	#############################################################################	3585	#############################################################################
2585	# initialisation and cleanup	3586	# initialisation and cleanup
2586		3587
2587	# install some emergency cleanup handlers	3588	# install some emergency cleanup handlers
2588	BEGIN {	3589	BEGIN {
		3590	our %SIGWATCHER = ();
2589	for my $signal (qw(INT HUP TERM)) {	3591	for my $signal (qw(INT HUP TERM)) {
2590	Event->signal (	3592	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2591	reentrant => 0,
2592	data => WF_AUTOCANCEL,
2593	signal => $signal,
2594	prio => 0,
2595	cb => sub {
2596	cf::cleanup "SIG$signal";	3593	cf::cleanup "SIG$signal";
2597	},
2598	);	3594	};
		3595	}
		3596	}
		3597
		3598	sub write_runtime_sync {
		3599	my $t0 = AE::time;
		3600
		3601	# first touch the runtime file to show we are still running:
		3602	# the fsync below can take a very very long time.
		3603
		3604	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3605
		3606	my $guard = cf::lock_acquire "write_runtime";
		3607
		3608	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3609	or return;
		3610
		3611	my $value = $cf::RUNTIME + 90 + 10;
		3612	# 10 is the runtime save interval, for a monotonic clock
		3613	# 60 allows for the watchdog to kill the server.
		3614
		3615	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3616	and return;
		3617
		3618	# always fsync - this file is important
		3619	aio_fsync $fh
		3620	and return;
		3621
		3622	# touch it again to show we are up-to-date
		3623	aio_utime $fh, undef, undef;
		3624
		3625	close $fh
		3626	or return;
		3627
		3628	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3629	and return;
		3630
		3631	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3632
2599	}	3633	1
		3634	}
		3635
		3636	our $uuid_lock;
		3637	our $uuid_skip;
		3638
		3639	sub write_uuid_sync($) {
		3640	$uuid_skip ||= $_[0];
		3641
		3642	return if $uuid_lock;
		3643	local $uuid_lock = 1;
		3644
		3645	my $uuid = "$LOCALDIR/uuid";
		3646
		3647	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3648	or return;
		3649
		3650	my $value = uuid_seq uuid_cur;
		3651
		3652	unless ($value) {
		3653	warn "cowardly refusing to write zero uuid value!\n";
		3654	return;
		3655	}
		3656
		3657	my $value = uuid_str $value + $uuid_skip;
		3658	$uuid_skip = 0;
		3659
		3660	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3661	and return;
		3662
		3663	# always fsync - this file is important
		3664	aio_fsync $fh
		3665	and return;
		3666
		3667	close $fh
		3668	or return;
		3669
		3670	aio_rename "$uuid~", $uuid
		3671	and return;
		3672
		3673	warn "uuid file written ($value).\n";
		3674
		3675	1
		3676
		3677	}
		3678
		3679	sub write_uuid($$) {
		3680	my ($skip, $sync) = @_;
		3681
		3682	$sync ? write_uuid_sync $skip
		3683	: async { write_uuid_sync $skip };
2600	}	3684	}
2601		3685
2602	sub emergency_save() {	3686	sub emergency_save() {
2603	my $freeze_guard = cf::freeze_mainloop;	3687	my $freeze_guard = cf::freeze_mainloop;
2604		3688
2605	warn "enter emergency perl save\n";	3689	warn "emergency_perl_save: enter\n";
2606		3690
2607	cf::sync_job {	3691	cf::sync_job {
		3692	# this is a trade-off: we want to be very quick here, so
		3693	# save all maps without fsync, and later call a global sync
		3694	# (which in turn might be very very slow)
		3695	local $USE_FSYNC = 0;
		3696
2608	# use a peculiar iteration method to avoid tripping on perl	3697	# use a peculiar iteration method to avoid tripping on perl
2609	# refcount bugs in for. also avoids problems with players	3698	# refcount bugs in for. also avoids problems with players
2610	# and maps saved/destroyed asynchronously.	3699	# and maps saved/destroyed asynchronously.
2611	warn "begin emergency player save\n";	3700	warn "emergency_perl_save: begin player save\n";
2612	for my $login (keys %cf::PLAYER) {	3701	for my $login (keys %cf::PLAYER) {
2613	my $pl = $cf::PLAYER{$login} or next;	3702	my $pl = $cf::PLAYER{$login} or next;
2614	$pl->valid or next;	3703	$pl->valid or next;
		3704	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2615	$pl->save;	3705	$pl->save;
2616	}	3706	}
2617	warn "end emergency player save\n";	3707	warn "emergency_perl_save: end player save\n";
2618		3708
2619	warn "begin emergency map save\n";	3709	warn "emergency_perl_save: begin map save\n";
2620	for my $path (keys %cf::MAP) {	3710	for my $path (keys %cf::MAP) {
2621	my $map = $cf::MAP{$path} or next;	3711	my $map = $cf::MAP{$path} or next;
2622	$map->valid or next;	3712	$map->valid or next;
2623	$map->save;	3713	$map->save;
2624	}	3714	}
2625	warn "end emergency map save\n";	3715	warn "emergency_perl_save: end map save\n";
2626		3716
2627	warn "begin emergency database checkpoint\n";	3717	warn "emergency_perl_save: begin database checkpoint\n";
2628	BDB::db_env_txn_checkpoint $DB_ENV;	3718	BDB::db_env_txn_checkpoint $DB_ENV;
2629	warn "end emergency database checkpoint\n";	3719	warn "emergency_perl_save: end database checkpoint\n";
		3720
		3721	warn "emergency_perl_save: begin write uuid\n";
		3722	write_uuid_sync 1;
		3723	warn "emergency_perl_save: end write uuid\n";
2630	};	3724	};
2631		3725
		3726	warn "emergency_perl_save: starting sync()\n";
		3727	IO::AIO::aio_sync sub {
		3728	warn "emergency_perl_save: finished sync()\n";
		3729	};
		3730
2632	warn "leave emergency perl save\n";	3731	warn "emergency_perl_save: leave\n";
2633	}	3732	}
2634		3733
2635	sub post_cleanup {	3734	sub post_cleanup {
2636	my ($make_core) = @_;	3735	my ($make_core) = @_;
2637		3736
2638	warn Carp::longmess "post_cleanup backtrace"	3737	warn Carp::longmess "post_cleanup backtrace"
2639	if $make_core;	3738	if $make_core;
		3739
		3740	my $fh = pidfile;
		3741	unlink $PIDFILE if <$fh> == $$;
		3742	}
		3743
		3744	# a safer delete_package, copied from Symbol
		3745	sub clear_package($) {
		3746	my $pkg = shift;
		3747
		3748	# expand to full symbol table name if needed
		3749	unless ($pkg =~ /^main::.*::$/) {
		3750	$pkg = "main$pkg" if $pkg =~ /^::/;
		3751	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3752	$pkg .= '::' unless $pkg =~ /::$/;
		3753	}
		3754
		3755	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3756	my $stem_symtab = *{$stem}{HASH};
		3757
		3758	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3759	or return;
		3760
		3761	# clear all symbols
		3762	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3763	for my $name (keys %$leaf_symtab) {
		3764	_gv_clear *{"$pkg$name"};
		3765	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3766	}
		3767	warn "cleared package $pkg\n";#d#
2640	}	3768	}
2641		3769
2642	sub do_reload_perl() {	3770	sub do_reload_perl() {
2643	# can/must only be called in main	3771	# can/must only be called in main
2644	if ($Coro::current != $Coro::main) {	3772	if ($Coro::current != $Coro::main) {
2645	warn "can only reload from main coroutine";	3773	warn "can only reload from main coroutine";
2646	return;	3774	return;
2647	}	3775	}
2648		3776
		3777	return if $RELOAD++;
		3778
		3779	my $t1 = AE::time;
		3780
		3781	while ($RELOAD) {
2649	warn "reloading...";	3782	warn "reloading...";
2650		3783
2651	warn "entering sync_job";	3784	warn "entering sync_job";
2652		3785
2653	cf::sync_job {	3786	cf::sync_job {
2654	cf::write_runtime; # external watchdog should not bark	3787	cf::write_runtime_sync; # external watchdog should not bark
2655	cf::emergency_save;	3788	cf::emergency_save;
2656	cf::write_runtime; # external watchdog should not bark	3789	cf::write_runtime_sync; # external watchdog should not bark
2657		3790
2658	warn "syncing database to disk";	3791	warn "syncing database to disk";
2659	BDB::db_env_txn_checkpoint $DB_ENV;	3792	BDB::db_env_txn_checkpoint $DB_ENV;
2660		3793
2661	# if anything goes wrong in here, we should simply crash as we already saved	3794	# if anything goes wrong in here, we should simply crash as we already saved
2662		3795
2663	warn "cancelling all WF_AUTOCANCEL watchers";
2664	for (Event::all_watchers) {
2665	$_->cancel if $_->data & WF_AUTOCANCEL;
2666	}
2667
2668	warn "flushing outstanding aio requests";	3796	warn "flushing outstanding aio requests";
2669	for (;;) {
2670	BDB::flush;
2671	IO::AIO::flush;
2672	Coro::cede;
2673	last unless IO::AIO::nreqs || BDB::nreqs;	3797	while (IO::AIO::nreqs || BDB::nreqs) {
2674	warn "iterate...";	3798	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2675	}
2676
2677	++$RELOAD;
2678
2679	warn "cancelling all extension coros";
2680	$_->cancel for values %EXT_CORO;
2681	%EXT_CORO = ();
2682
2683	warn "removing commands";
2684	%COMMAND = ();
2685
2686	warn "removing ext commands";
2687	%EXTCMD = ();
2688
2689	warn "unloading/nuking all extensions";
2690	for my $pkg (@EXTS) {
2691	warn "... unloading $pkg";
2692
2693	if (my $cb = $pkg->can ("unload")) {
2694	eval {
2695	$cb->($pkg);
2696	1
2697	} or warn "$pkg unloaded, but with errors: $@";
2698	}	3799	}
2699		3800
2700	warn "... nuking $pkg";	3801	warn "cancelling all extension coros";
2701	Symbol::delete_package $pkg;	3802	$_->cancel for values %EXT_CORO;
2702	}	3803	%EXT_CORO = ();
2703		3804
2704	warn "unloading all perl modules loaded from $LIBDIR";	3805	warn "removing commands";
2705	while (my ($k, $v) = each %INC) {	3806	%COMMAND = ();
2706	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2707		3807
		3808	warn "removing ext/exti commands";
		3809	%EXTCMD = ();
		3810	%EXTICMD = ();
		3811
		3812	warn "unloading/nuking all extensions";
		3813	for my $pkg (@EXTS) {
2708	warn "... unloading $k";	3814	warn "... unloading $pkg";
2709	delete $INC{$k};
2710		3815
2711	$k =~ s/\.pm$//;
2712	$k =~ s/\//::/g;
2713
2714	if (my $cb = $k->can ("unload_module")) {	3816	if (my $cb = $pkg->can ("unload")) {
		3817	eval {
2715	$cb->();	3818	$cb->($pkg);
		3819	1
		3820	} or warn "$pkg unloaded, but with errors: $@";
		3821	}
		3822
		3823	warn "... clearing $pkg";
		3824	clear_package $pkg;
2716	}	3825	}
2717		3826
2718	Symbol::delete_package $k;	3827	warn "unloading all perl modules loaded from $LIBDIR";
		3828	while (my ($k, $v) = each %INC) {
		3829	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3830
		3831	warn "... unloading $k";
		3832	delete $INC{$k};
		3833
		3834	$k =~ s/\.pm$//;
		3835	$k =~ s/\//::/g;
		3836
		3837	if (my $cb = $k->can ("unload_module")) {
		3838	$cb->();
		3839	}
		3840
		3841	clear_package $k;
2719	}	3842	}
2720		3843
2721	warn "getting rid of safe::, as good as possible";	3844	warn "getting rid of safe::, as good as possible";
2722	Symbol::delete_package "safe::$_"	3845	clear_package "safe::$_"
2723	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3846	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2724		3847
2725	warn "unloading cf.pm \"a bit\"";	3848	warn "unloading cf.pm \"a bit\"";
2726	delete $INC{"cf.pm"};	3849	delete $INC{"cf.pm"};
2727	delete $INC{"cf/pod.pm"};	3850	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2728		3851
2729	# don't, removes xs symbols, too,	3852	# don't, removes xs symbols, too,
2730	# and global variables created in xs	3853	# and global variables created in xs
2731	#Symbol::delete_package __PACKAGE__;	3854	#clear_package __PACKAGE__;
2732		3855
2733	warn "unload completed, starting to reload now";	3856	warn "unload completed, starting to reload now";
2734		3857
2735	warn "reloading cf.pm";	3858	warn "reloading cf.pm";
2736	require cf;	3859	require cf;
2737	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3860	cf::_connect_to_perl_1;
2738		3861
2739	warn "loading config and database again";	3862	warn "loading config and database again";
2740	cf::cfg_load;	3863	cf::reload_config;
2741		3864
2742	warn "loading extensions";	3865	warn "loading extensions";
2743	cf::load_extensions;	3866	cf::load_extensions;
2744		3867
		3868	if ($REATTACH_ON_RELOAD) {
2745	warn "reattaching attachments to objects/players";	3869	warn "reattaching attachments to objects/players";
2746	_global_reattach; # objects, sockets	3870	_global_reattach; # objects, sockets
2747	warn "reattaching attachments to maps";	3871	warn "reattaching attachments to maps";
2748	reattach $_ for values %MAP;	3872	reattach $_ for values %MAP;
2749	warn "reattaching attachments to players";	3873	warn "reattaching attachments to players";
2750	reattach $_ for values %PLAYER;	3874	reattach $_ for values %PLAYER;
		3875	}
2751		3876
		3877	warn "running post_init jobs";
		3878	(pop @POST_INIT)->(1) while @POST_INIT;
		3879
2752	warn "leaving sync_job";	3880	warn "leaving sync_job";
2753		3881
2754	1	3882	1
2755	} or do {	3883	} or do {
2756	warn $@;	3884	warn $@;
2757	warn "error while reloading, exiting.";	3885	cf::cleanup "error while reloading, exiting.";
2758	exit 1;
2759	};	3886	};
2760		3887
2761	warn "reloaded";	3888	warn "reloaded";
		3889	--$RELOAD;
		3890	}
		3891
		3892	$t1 = AE::time - $t1;
		3893	warn "reload completed in ${t1}s\n";
2762	};	3894	};
2763		3895
2764	our $RELOAD_WATCHER; # used only during reload	3896	our $RELOAD_WATCHER; # used only during reload
2765		3897
2766	sub reload_perl() {	3898	sub reload_perl() {
2767	# doing reload synchronously and two reloads happen back-to-back,	3899	# doing reload synchronously and two reloads happen back-to-back,
2768	# coro crashes during coro_state_free->destroy here.	3900	# coro crashes during coro_state_free->destroy here.
2769		3901
2770	$RELOAD_WATCHER ||= Event->timer (	3902	$RELOAD_WATCHER ||= cf::async {
2771	reentrant => 0,	3903	Coro::AIO::aio_wait cache_extensions;
2772	after => 0,	3904
2773	data => WF_AUTOCANCEL,	3905	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2774	cb => sub {
2775	do_reload_perl;	3906	do_reload_perl;
2776	undef $RELOAD_WATCHER;	3907	undef $RELOAD_WATCHER;
2777	},	3908	};
2778	);	3909	};
2779	}	3910	}
2780		3911
2781	register_command "reload" => sub {	3912	register_command "reload" => sub {
2782	my ($who, $arg) = @_;	3913	my ($who, $arg) = @_;
2783		3914
2784	if ($who->flag (FLAG_WIZ)) {	3915	if ($who->flag (FLAG_WIZ)) {
2785	$who->message ("reloading server.");	3916	$who->message ("reloading server.");
		3917	async {
		3918	$Coro::current->{desc} = "perl_reload";
2786	async { reload_perl };	3919	reload_perl;
		3920	};
2787	}	3921	}
2788	};	3922	};
2789		3923
2790	unshift @INC, $LIBDIR;	3924	unshift @INC, $LIBDIR;
2791		3925
…		…
2793		3927
2794	our @WAIT_FOR_TICK;	3928	our @WAIT_FOR_TICK;
2795	our @WAIT_FOR_TICK_BEGIN;	3929	our @WAIT_FOR_TICK_BEGIN;
2796		3930
2797	sub wait_for_tick {	3931	sub wait_for_tick {
2798	return unless $TICK_WATCHER->is_active;
2799	return if $Coro::current == $Coro::main;	3932	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2800		3933
2801	my $signal = new Coro::Signal;	3934	my $signal = new Coro::Signal;
2802	push @WAIT_FOR_TICK, $signal;	3935	push @WAIT_FOR_TICK, $signal;
2803	$signal->wait;	3936	$signal->wait;
2804	}	3937	}
2805		3938
2806	sub wait_for_tick_begin {	3939	sub wait_for_tick_begin {
2807	return unless $TICK_WATCHER->is_active;
2808	return if $Coro::current == $Coro::main;	3940	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2809		3941
2810	my $signal = new Coro::Signal;	3942	my $signal = new Coro::Signal;
2811	push @WAIT_FOR_TICK_BEGIN, $signal;	3943	push @WAIT_FOR_TICK_BEGIN, $signal;
2812	$signal->wait;	3944	$signal->wait;
2813	}	3945	}
2814		3946
2815	$TICK_WATCHER = Event->timer (	3947	sub tick {
2816	reentrant => 0,
2817	parked => 1,
2818	prio => 0,
2819	at => $NEXT_TICK || $TICK,
2820	data => WF_AUTOCANCEL,
2821	cb => sub {
2822	if ($Coro::current != $Coro::main) {	3948	if ($Coro::current != $Coro::main) {
2823	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3949	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2824	unless ++$bug_warning > 10;	3950	unless ++$bug_warning > 10;
2825	return;	3951	return;
2826	}	3952	}
2827		3953
2828	$NOW = Event::time;
2829
2830	cf::server_tick; # one server iteration	3954	cf::server_tick; # one server iteration
2831		3955
2832	$RUNTIME += $TICK;	3956	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2833	$NEXT_TICK += $TICK;
2834		3957
2835	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2836	$NEXT_RUNTIME_WRITE = $NOW + 10;	3959	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2837	Coro::async_pool {	3960	Coro::async_pool {
		3961	$Coro::current->{desc} = "runtime saver";
2838	write_runtime	3962	write_runtime_sync
2839	or warn "ERROR: unable to write runtime file: $!";	3963	or warn "ERROR: unable to write runtime file: $!";
2840	};
2841	}	3964	};
		3965	}
2842		3966
2843	# my $AFTER = Event::time;
2844	# warn $AFTER - $NOW;#d#
2845
2846	# if we are delayed by four ticks or more, skip them all
2847	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2848
2849	$TICK_WATCHER->at ($NEXT_TICK);
2850	$TICK_WATCHER->start;
2851
2852	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3967	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2853	$sig->send;	3968	$sig->send;
2854	}	3969	}
2855	while (my $sig = shift @WAIT_FOR_TICK) {	3970	while (my $sig = shift @WAIT_FOR_TICK) {
2856	$sig->send;	3971	$sig->send;
2857	}
2858
2859	_post_tick;
2860	},	3972	}
2861	);	3973
		3974	$LOAD = ($NOW - $TICK_START) / $TICK;
		3975	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3976
		3977	if (0) {
		3978	if ($NEXT_TICK) {
		3979	my $jitter = $TICK_START - $NEXT_TICK;
		3980	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3981	warn "jitter $JITTER\n";#d#
		3982	}
		3983	}
		3984	}
2862		3985
2863	{	3986	{
2864	BDB::max_poll_time $TICK * 0.1;	3987	# configure BDB
2865	$BDB_POLL_WATCHER = Event->io (	3988
2866	reentrant => 0,
2867	fd => BDB::poll_fileno,
2868	poll => 'r',
2869	prio => 0,
2870	data => WF_AUTOCANCEL,
2871	cb => \&BDB::poll_cb,
2872	);
2873	BDB::min_parallel 8;	3989	BDB::min_parallel 16;
2874		3990	BDB::max_poll_reqs $TICK * 0.1;
2875	BDB::set_sync_prepare {	3991	$AnyEvent::BDB::WATCHER->priority (1);
2876	my $status;
2877	my $current = $Coro::current;
2878	(
2879	sub {
2880	$status = $!;
2881	$current->ready; undef $current;
2882	},
2883	sub {
2884	Coro::schedule while defined $current;
2885	$! = $status;
2886	},
2887	)
2888	};
2889		3992
2890	unless ($DB_ENV) {	3993	unless ($DB_ENV) {
2891	$DB_ENV = BDB::db_env_create;	3994	$DB_ENV = BDB::db_env_create;
		3995	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3996	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3997	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3998	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3999	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2892		4000
2893	cf::sync_job {	4001	cf::sync_job {
2894	eval {	4002	eval {
2895	BDB::db_env_open	4003	BDB::db_env_open
2896	$DB_ENV,	4004	$DB_ENV,
…		…
2898	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4006	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2899	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4007	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2900	0666;	4008	0666;
2901		4009
2902	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4010	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2903
2904	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2905	$DB_ENV->set_lk_detect;
2906	};	4011	};
2907		4012
2908	cf::cleanup "db_env_open(db): $@" if $@;	4013	cf::cleanup "db_env_open(db): $@" if $@;
2909	};	4014	};
2910	}	4015	}
		4016
		4017	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4018	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4019	};
		4020	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4021	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4022	};
		4023	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4024	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4025	};
2911	}	4026	}
2912		4027
2913	{	4028	{
		4029	# configure IO::AIO
		4030
2914	IO::AIO::min_parallel 8;	4031	IO::AIO::min_parallel 8;
2915
2916	undef $Coro::AIO::WATCHER;
2917	IO::AIO::max_poll_time $TICK * 0.1;	4032	IO::AIO::max_poll_time $TICK * 0.1;
2918	$AIO_POLL_WATCHER = Event->io (	4033	undef $AnyEvent::AIO::WATCHER;
2919	reentrant => 0,	4034	}
2920	data => WF_AUTOCANCEL,	4035
2921	fd => IO::AIO::poll_fileno,	4036	my $_log_backtrace;
2922	poll => 'r',	4037
2923	prio => 6,	4038	sub _log_backtrace {
2924	cb => \&IO::AIO::poll_cb,	4039	my ($msg, @addr) = @_;
2925	);	4040
		4041	$msg =~ s/\n//;
		4042
		4043	# limit the # of concurrent backtraces
		4044	if ($_log_backtrace < 2) {
		4045	++$_log_backtrace;
		4046	my $perl_bt = Carp::longmess $msg;
		4047	async {
		4048	$Coro::current->{desc} = "abt $msg";
		4049
		4050	my @bt = fork_call {
		4051	@addr = map { sprintf "%x", $_ } @addr;
		4052	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4053	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4054	or die "addr2line: $!";
		4055
		4056	my @funcs;
		4057	my @res = <$fh>;
		4058	chomp for @res;
		4059	while (@res) {
		4060	my ($func, $line) = splice @res, 0, 2, ();
		4061	push @funcs, "[$func] $line";
		4062	}
		4063
		4064	@funcs
		4065	};
		4066
		4067	LOG llevInfo, "[ABT] $perl_bt\n";
		4068	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4069	LOG llevInfo, "[ABT] $_\n" for @bt;
		4070	--$_log_backtrace;
		4071	};
		4072	} else {
		4073	LOG llevInfo, "[ABT] $msg\n";
		4074	LOG llevInfo, "[ABT] [suppressed]\n";
		4075	}
2926	}	4076	}
2927		4077
2928	# load additional modules	4078	# load additional modules
2929	use cf::pod;	4079	require "cf/$_.pm" for @EXTRA_MODULES;
		4080	cf::_connect_to_perl_2;
2930		4081
2931	END { cf::emergency_save }	4082	END { cf::emergency_save }
2932		4083
2933	1	4084	1
2934		4085

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