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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.245 by root, Tue Apr 17 10:06:33 2007 UTC vs.
Revision 1.503 by root, Sat Jan 30 23:46:39 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
9	use Event;	32	use EV;
10	use Opcode;	33	use Opcode;
11	use Safe;	34	use Safe;
12	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
13		38
		39	use Guard ();
14	use Coro 3.61 ();	40	use Coro ();
15	use Coro::State;	41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
16	use Coro::Event;	44	use Coro::AnyEvent;
17	use Coro::Timer;	45	use Coro::Timer;
18	use Coro::Signal;	46	use Coro::Signal;
19	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
20	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
21	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
22		54
		55	use JSON::XS 2.01 ();
23	use BDB ();	56	use BDB ();
24	use Data::Dumper;	57	use Data::Dumper;
25	use Digest::MD5;
26	use Fcntl;	58	use Fcntl;
27	use YAML::Syck ();	59	use YAML::XS ();
28	use IO::AIO 2.32 ();	60	use IO::AIO ();
29	use Time::HiRes;	61	use Time::HiRes;
30	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
31		66
32	# configure various modules to our taste	67	# configure various modules to our taste
33	#	68	#
34	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
35	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";
36	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
37		77
38	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
39		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
40	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
41	$YAML::Syck::ImplicitUnicode = 1;
42
43	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
44		80
45	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
46		82
47	our %COMMAND = ();	83	our %COMMAND = ();
48	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
49		85
50	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
51	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
52	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
54		91
55	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
56	our @EVENT;	93	our @EVENT;
57	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
		96
		97	our $CONFDIR = confdir;
		98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
58		112
59	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
60	our $TICK_WATCHER;
61	our $AIO_POLL_WATCHER;
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
63	our $NEXT_TICK;	115	our $NEXT_TICK;
64	our $NOW;
65	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
66		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
67	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
68	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
69		124
70	our %CFG;	125	our %CFG;
71		126
72	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
73	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
74		130
75	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
76	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
78	our $RANDOM_MAPS = cf::localdir . "/random";
79	our $BDB_ENV_DIR = cf::localdir . "/db";
80		134
81	# used to convert map paths into valid unix filenames by replacing / by ∕	135	# used to convert map paths into valid unix filenames by replacing / by ∕
82	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
83		137
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
		147
84	binmode STDOUT;	148	binmode STDOUT;
85	binmode STDERR;	149	binmode STDERR;
86		150
87	# read virtual server time, if available	151	# read virtual server time, if available
88	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
89	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
90	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
91	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
92	}	156	}
93		157
94	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
95	mkdir cf::localdir . "/" . cf::playerdir;	159
96	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
97	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
98	mkdir $RANDOM_MAPS;
99	mkdir $BDB_ENV_DIR;
100		162
101	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
102		164
103	sub cf::map::normalise;	165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
104		177
105	#############################################################################	178	#############################################################################
106		179
107	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
108		181
…		…
115	=item $cf::RUNTIME	188	=item $cf::RUNTIME
116		189
117	The time this server has run, starts at 0 and is increased by $cf::TICK on	190	The time this server has run, starts at 0 and is increased by $cf::TICK on
118	every server tick.	191	every server tick.
119		192
120	=item $cf::LIBDIR	193	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		194	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		195	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
121		196
122	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
123	be found. It will be added to C<@INC> automatically.	198	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		199	unique-items directory, player file directory, random maps directory and
		200	database environment.
124		201
125	=item $cf::NOW	202	=item $cf::NOW
126		203
127	The time of the last (current) server tick.	204	The time of the last (current) server tick.
128		205
129	=item $cf::TICK	206	=item $cf::TICK
130		207
131	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
132		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
133	=item %cf::CFG	220	=item %cf::CFG
134		221
135	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
136	from wherever your confdir points to.	223	from wherever your confdir points to.
137		224
138	=item cf::wait_for_tick, cf::wait_for_tick_begin	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
139		226
140	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
141	returns directly I<after> the tick processing (and consequently, can only wake one process	228	returns directly I<after> the tick processing (and consequently, can only wake one process
142	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
143		230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
		242
144	=back	243	=back
145		244
146	=cut	245	=cut
147		246
148	BEGIN {	247	$Coro::State::WARNHOOK = sub {
149	*CORE::GLOBAL::warn = sub {
150	my $msg = join "", @_;	248	my $msg = join "", @_;
151	utf8::encode $msg;
152		249
153	$msg .= "\n"	250	$msg .= "\n"
154	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
155		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
156	LOG llevError, $msg;	255	LOG llevError, $msg;
157	};	256	};
158	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
159		271
160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
162	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
163	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
164	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
165	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
166		279
167	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
168	# within the Safe compartment.	281	# within the Safe compartment.
169	for my $pkg (qw(	282	for my $pkg (qw(
170	cf::global cf::attachable	283	cf::global cf::attachable
171	cf::object cf::object::player	284	cf::object cf::object::player
172	cf::client cf::player	285	cf::client cf::player
173	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
174	cf::map cf::party cf::region	288	cf::party cf::region
175	)) {	289	)) {
176	no strict 'refs';
177	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
178	}	291	}
179		292
180	$Event::DIED = sub {	293	$EV::DIED = sub {
181	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
182	};	295	};
		296
		297	#############################################################################
183		298
184	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
185		300
186	=over 4	301	=over 4
187		302
…		…
206	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
207	$d	322	$d
208	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
209	}	324	}
210		325
211	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
212
213	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
214		327
215	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
216		329
217	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
218		331
219	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
220		333
		334	=cut
		335
		336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		337
		338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
		353	}
		354
221	=item cf::lock_wait $string	355	=item cf::lock_wait $string
222		356
223	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
224		358
225	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
226		360
227	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
228	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
229	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
230	returned.	364	returned.
231		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
232	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
234		371
235	=cut	372	=item $locked = cf::lock_active $string
236		373
237	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
238		379
239	sub lock_wait($) {	380	sub lock_wait($) {
240	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
241
242	# wait for lock, if any
243	while ($LOCK{$key}) {
244	push @{ $LOCK{$key} }, $Coro::current;
245	Coro::schedule;
246	}
247	}	382	}
248		383
249	sub lock_acquire($) {	384	sub lock_acquire($) {
250	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
251		387
252	# wait, to be sure we are not locked	388	sub lock_active($) {
253	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
254
255	$LOCK{$key} = [];
256
257	Coro::guard {
258	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };
260	}
261	}	390	}
262		391
263	sub freeze_mainloop {	392	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
265		394
266	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
267	$TICK_WATCHER->start;	396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428	our $SLOT_DECAY = 0.9;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435	my $busy;
		436
		437	while () {
		438	next_job:
		439
		440	my $avail = cf::till_tick;
		441
		442	for (0 .. $#SLOT_QUEUE) {
		443	if ($SLOT_QUEUE[$_][0] <= $avail) {
		444	$busy = 0;
		445	my $job = splice @SLOT_QUEUE, $_, 1, ();
		446	$job->[2]->send;
		447	Coro::cede;
		448	goto next_job;
		449	} else {
		450	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		451	}
		452	}
		453
		454	if (@SLOT_QUEUE) {
		455	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		456	push @cf::WAIT_FOR_TICK, $signal;
		457	$signal->wait;
		458	} else {
		459	$busy = 0;
		460	Coro::schedule;
		461	}
268	};	462	}
269	$TICK_WATCHER->stop;	463	};
270	$guard	464
		465	sub get_slot($;$$) {
		466	return if tick_inhibit || $Coro::current == $Coro::main;
		467
		468	my ($time, $pri, $name) = @_;
		469
		470	$time = clamp $time, 0.01, $TICK * .6;
		471
		472	my $sig = new Coro::Signal;
		473
		474	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		475	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		476	$SLOT_QUEUE->ready;
		477	$sig->wait;
271	}	478	}
272		479
273	=item cf::async { BLOCK }	480	=item cf::async { BLOCK }
274		481
275	Currently the same as Coro::async_pool, meaning you cannot use	482	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		487
281	BEGIN { *async = \&Coro::async_pool }	488	BEGIN { *async = \&Coro::async_pool }
282		489
283	=item cf::sync_job { BLOCK }	490	=item cf::sync_job { BLOCK }
284		491
285	The design of crossfire+ requires that the main coro ($Coro::main) is	492	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	493	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
288		496
289	If it must be done, put the blocking parts into C<sync_job>. This will run	497	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	498	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	499	server will be frozen during this time, so the block should either finish
292	fast or be very important.	500	fast or be very important.
…		…
295		503
296	sub sync_job(&) {	504	sub sync_job(&) {
297	my ($job) = @_;	505	my ($job) = @_;
298		506
299	if ($Coro::current == $Coro::main) {	507	if ($Coro::current == $Coro::main) {
		508	my $time = EV::time;
		509
300	# this is the main coro, too bad, we have to block	510	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	511	# till the operation succeeds, freezing the server :/
302		512
303	# TODO: use suspend/resume instead	513	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	514
305	my $freeze_guard = freeze_mainloop;	515	my $freeze_guard = freeze_mainloop;
306		516
307	my $busy = 1;	517	my $busy = 1;
308	my @res;	518	my @res;
309		519
310	(async {	520	(async {
		521	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	522	@res = eval { $job->() };
312	warn $@ if $@;	523	warn $@ if $@;
313	undef $busy;	524	undef $busy;
314	})->prio (Coro::PRIO_MAX);	525	})->prio (Coro::PRIO_MAX);
315		526
316	while ($busy) {	527	while ($busy) {
317	Coro::cede or Event::one_event;	528	if (Coro::nready) {
		529	Coro::cede_notself;
		530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
318	}	532	}
		533	}
		534
		535	my $time = EV::time - $time;
		536
		537	$TICK_START += $time; # do not account sync jobs to server load
319		538
320	wantarray ? @res : $res[0]	539	wantarray ? @res : $res[0]
321	} else {	540	} else {
322	# we are in another coroutine, how wonderful, everything just works	541	# we are in another coroutine, how wonderful, everything just works
323		542
…		…
343	$EXT_CORO{$coro+0} = $coro;	562	$EXT_CORO{$coro+0} = $coro;
344		563
345	$coro	564	$coro
346	}	565	}
347		566
348	sub write_runtime {	567	=item fork_call { }, $args
349	my $guard = cf::lock_acquire "write_runtime";
350		568
351	my $runtime = cf::localdir . "/runtime";	569	Executes the given code block with the given arguments in a seperate
		570	process, returning the results. Everything must be serialisable with
		571	Coro::Storable. May, of course, block. Note that the executed sub may
		572	never block itself or use any form of event handling.
352		573
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	574	=cut
354	or return;
355		575
356	my $value = $cf::RUNTIME + 90 + 10;	576	sub fork_call(&@) {
357	# 10 is the runtime save interval, for a monotonic clock	577	my ($cb, @args) = @_;
358	# 60 allows for the watchdog to kill the server.
359		578
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	579	# we seemingly have to make a local copy of the whole thing,
361	and return;	580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
362		582
363	# always fsync - this file is important	583	my @res = Coro::Util::fork_eval {
364	aio_fsync $fh	584	reset_signals;
365	and return;	585	&$cb
		586	}, @args;
366		587
367	close $fh	588	wantarray ? @res : $res[-1]
368	or return;	589	}
369		590
370	aio_rename "$runtime~", $runtime	591	=item $coin = coin_from_name $name
371	and return;
372		592
		593	=cut
		594
		595	our %coin_alias = (
		596	"silver" => "silvercoin",
		597	"silvercoin" => "silvercoin",
		598	"silvercoins" => "silvercoin",
		599	"gold" => "goldcoin",
		600	"goldcoin" => "goldcoin",
		601	"goldcoins" => "goldcoin",
		602	"platinum" => "platinacoin",
		603	"platinumcoin" => "platinacoin",
		604	"platinumcoins" => "platinacoin",
		605	"platina" => "platinacoin",
		606	"platinacoin" => "platinacoin",
		607	"platinacoins" => "platinacoin",
		608	"royalty" => "royalty",
		609	"royalties" => "royalty",
		610	);
		611
		612	sub coin_from_name($) {
		613	$coin_alias{$_[0]}
		614	? cf::arch::find $coin_alias{$_[0]}
		615	: undef
		616	}
		617
		618	=item $value = cf::db_get $family => $key
		619
		620	Returns a single value from the environment database.
		621
		622	=item cf::db_put $family => $key => $value
		623
		624	Stores the given C<$value> in the family. It can currently store binary
		625	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		626
		627	=item $db = cf::db_table "name"
		628
		629	Create and/or open a new database table. The string must not be "db" and must be unique
		630	within each server.
		631
		632	=cut
		633
		634	sub db_table($) {
		635	my ($name) = @_;
		636	my $db = BDB::db_create $DB_ENV;
		637
		638	eval {
		639	$db->set_flags (BDB::CHKSUM);
		640
		641	utf8::encode $name;
		642	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		643	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		644	cf::cleanup "db_open(db): $!" if $!;
		645	};
		646	cf::cleanup "db_open(db): $@" if $@;
		647
		648	$db
		649	}
		650
		651	our $DB;
		652
		653	sub db_init {
		654	cf::sync_job {
		655	$DB ||= db_table "db";
		656	};
		657	}
		658
		659	sub db_get($$) {
		660	my $key = "$_[0]/$_[1]";
		661
		662	cf::sync_job {
		663	BDB::db_get $DB, undef, $key, my $data;
		664
		665	$! ? ()
		666	: $data
373	1	667	}
		668	}
		669
		670	sub db_put($$$) {
		671	BDB::dbreq_pri 4;
		672	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		673	}
		674
		675	=item cf::cache $id => [$paths...], $processversion => $process
		676
		677	Generic caching function that returns the value of the resource $id,
		678	caching and regenerating as required.
		679
		680	This function can block.
		681
		682	=cut
		683
		684	sub cache {
		685	my ($id, $src, $processversion, $process) = @_;
		686
		687	my $meta =
		688	join "\x00",
		689	$processversion,
		690	map {
		691	aio_stat $_
		692	and Carp::croak "$_: $!";
		693
		694	($_, (stat _)[7,9])
		695	} @$src;
		696
		697	my $dbmeta = db_get cache => "$id/meta";
		698	if ($dbmeta ne $meta) {
		699	# changed, we may need to process
		700
		701	my @data;
		702	my $md5;
		703
		704	for (0 .. $#$src) {
		705	0 <= aio_load $src->[$_], $data[$_]
		706	or Carp::croak "$src->[$_]: $!";
		707	}
		708
		709	# if processing is expensive, check
		710	# checksum first
		711	if (1) {
		712	$md5 =
		713	join "\x00",
		714	$processversion,
		715	map {
		716	cf::cede_to_tick;
		717	($src->[$_], Digest::MD5::md5_hex $data[$_])
		718	} 0.. $#$src;
		719
		720
		721	my $dbmd5 = db_get cache => "$id/md5";
		722	if ($dbmd5 eq $md5) {
		723	db_put cache => "$id/meta", $meta;
		724
		725	return db_get cache => "$id/data";
		726	}
		727	}
		728
		729	my $t1 = Time::HiRes::time;
		730	my $data = $process->(\@data);
		731	my $t2 = Time::HiRes::time;
		732
		733	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		734
		735	db_put cache => "$id/data", $data;
		736	db_put cache => "$id/md5" , $md5;
		737	db_put cache => "$id/meta", $meta;
		738
		739	return $data;
		740	}
		741
		742	db_get cache => "$id/data"
374	}	743	}
375		744
376	=item cf::datalog type => key => value, ...	745	=item cf::datalog type => key => value, ...
377		746
378	Log a datalog packet of the given type with the given key-value pairs.	747	Log a datalog packet of the given type with the given key-value pairs.
…		…
390		759
391	#############################################################################	760	#############################################################################
392		761
393	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
394		763
395	Many objects in crossfire are so-called attachable objects. That means you can	764	Many objects in deliantra are so-called attachable objects. That means you can
396	attach callbacks/event handlers (a collection of which is called an "attachment")	765	attach callbacks/event handlers (a collection of which is called an "attachment")
397	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
398		767
399	In the following description, CLASS can be any of C<global>, C<object>	768	In the following description, CLASS can be any of C<global>, C<object>
400	C<player>, C<client> or C<map> (i.e. the attachable objects in	769	C<player>, C<client> or C<map> (i.e. the attachable objects in
401	crossfire+).	770	Deliantra).
402		771
403	=over 4	772	=over 4
404		773
405	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
406		775
…		…
450	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
451		820
452	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
453	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
454		823
455	Some classes such as crossfire maps and objects can specify attachments	824	Some classes such as deliantra maps and objects can specify attachments
456	that are attached at load/instantiate time, thus the need for a name.	825	that are attached at load/instantiate time, thus the need for a name.
457		826
458	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
459		828
460	=over 4	829	=over 4
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	938	$registry = $CB_TYPE[$object_type] ||= [];
570		939
571	} elsif ($type eq "subtype") {	940	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	941	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	942	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	943	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		944
576	} elsif ($type eq "package") {	945	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	946	my $pkg = shift @arg;
578		947
579	while (my ($name, $id) = each %cb_id) {	948	while (my ($name, $id) = each %cb_id) {
…		…
608	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
609	}	978	}
610		979
611	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
612	} else {	981	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
614	}	983	}
615		984
616	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
617	}	986	}
618		987
…		…
620	if (ref $_[0]) {	989	if (ref $_[0]) {
621	_object_attach @_;	990	_object_attach @_;
622	} else {	991	} else {
623	_attach shift->_attach_registry, @_;	992	_attach shift->_attach_registry, @_;
624	}	993	}
		994	_recalc_want;
625	};	995	};
626		996
627	# all those should be optimised	997	# all those should be optimised
628	sub cf::attachable::detach {	998	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	999	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	1002	delete $obj->{_attachment}{$name};
633	reattach ($obj);	1003	reattach ($obj);
634	} else {	1004	} else {
635	Carp::croak "cannot, currently, detach class attachments";	1005	Carp::croak "cannot, currently, detach class attachments";
636	}	1006	}
		1007	_recalc_want;
637	};	1008	};
638		1009
639	sub cf::attachable::attached {	1010	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	1011	my ($obj, $name) = @_;
641		1012
…		…
656	";	1027	";
657	die if $@;	1028	die if $@;
658	}	1029	}
659		1030
660	our $override;	1031	our $override;
661	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1032	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
662		1033
663	sub override {	1034	sub override {
664	$override = 1;	1035	$override = 1;
665	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
666	}	1037	}
667		1038
668	sub do_invoke {	1039	sub do_invoke {
669	my $event = shift;	1040	my $event = shift;
670	my $callbacks = shift;	1041	my $callbacks = shift;
671		1042
672	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
673		1044
674	local $override;	1045	local $override;
675		1046
676	for (@$callbacks) {	1047	for (@$callbacks) {
677	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
686	}	1057	}
687		1058
688	0	1059	0
689	}	1060	}
690		1061
691	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
692		1063
693	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
694		1065
695	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
696		1067
697	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1068	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
698	removed in future versions), and there is no public API to access override	1069	removed in future versions), and there is no public API to access override
699	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
700		1071
701	=back	1072	=back
702		1073
703	=cut	1074	=cut
704		1075
705	#############################################################################	1076	#############################################################################
706	# object support	1077	# object support
		1078
		1079	sub _object_equal($$);
		1080	sub _object_equal($$) {
		1081	my ($a, $b) = @_;
		1082
		1083	return 0 unless (ref $a) eq (ref $b);
		1084
		1085	if ("HASH" eq ref $a) {
		1086	my @ka = keys %$a;
		1087	my @kb = keys %$b;
		1088
		1089	return 0 if @ka != @kb;
		1090
		1091	for (0 .. $#ka) {
		1092	return 0 unless $ka[$_] eq $kb[$_];
		1093	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1094	}
		1095
		1096	} elsif ("ARRAY" eq ref $a) {
		1097
		1098	return 0 if @$a != @$b;
		1099
		1100	for (0 .. $#$a) {
		1101	return 0 unless _object_equal $a->[$_], $b->[$_];
		1102	}
		1103
		1104	} elsif ($a ne $b) {
		1105	return 0;
		1106	}
		1107
		1108	1
		1109	}
		1110
		1111	our $SLOW_MERGES;#d#
		1112	sub _can_merge {
		1113	my ($ob1, $ob2) = @_;
		1114
		1115	++$SLOW_MERGES;#d#
		1116
		1117	# we do the slow way here
		1118	return _object_equal $ob1, $ob2
		1119	}
707		1120
708	sub reattach {	1121	sub reattach {
709	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
710	my ($obj) = @_;	1123	my ($obj) = @_;
711		1124
		1125	# no longer needed after getting rid of delete_package?
712	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1126	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
713		1127
714	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
715		1129
716	@$registry = ();	1130	@$registry = ();
717		1131
…		…
732	cf::attachable->attach (	1146	cf::attachable->attach (
733	prio => -1000000,	1147	prio => -1000000,
734	on_instantiate => sub {	1148	on_instantiate => sub {
735	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
736		1150
737	$data = from_json $data;	1151	$data = decode_json $data;
738		1152
739	for (@$data) {	1153	for (@$data) {
740	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
741		1155
742	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
758	sub object_freezer_save {	1172	sub object_freezer_save {
759	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
760		1174
761	sync_job {	1175	sync_job {
762	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
763	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
764	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
765		1180
766	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
767	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
768	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
769	aio_fsync $fh if $cf::USE_FSYNC;	1184	if ($cf::USE_FSYNC) {
		1185	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;
		1186	aio_fsync $fh;
		1187	}
770	close $fh;	1188	aio_close $fh;
771		1189
772	if (@$objs) {	1190	if (@$objs) {
773	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1191	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
774	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
775	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
776	aio_write $fh, 0, (length $data), $data, 0;	1194	aio_write $fh, 0, (length $data), $data, 0;
777	aio_fsync $fh if $cf::USE_FSYNC;	1195	if ($cf::USE_FSYNC) {
		1196	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;
		1197	aio_fsync $fh;
		1198	}
778	close $fh;	1199	aio_close $fh;
779	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
780	}	1201	}
781	} else {	1202	} else {
782	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
783	}	1204	}
784		1205
785	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
786	} else {	1210	} else {
787	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
788	}	1212	}
789	} else {	1213	} else {
790	aio_unlink $filename;	1214	aio_unlink $filename;
791	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
792	}	1216	}
793	}	1217	};
794	}	1218	}
795		1219
796	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
797	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
798		1222
…		…
810	or return;	1234	or return;
811		1235
812	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
813	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
814	or return;	1238	or return;
		1239
815	$av = eval { (Storable::thaw $av)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
816	}	1242	}
817		1243
		1244	utf8::decode (my $decname = $filename);
818	warn sprintf "loading %s (%d)\n",	1245	warn sprintf "loading %s (%d,%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1246	$decname, length $data, scalar @{$av || []};
		1247
820	return ($data, $av);	1248	($data, $av)
821	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
822		1256
823	#############################################################################	1257	#############################################################################
824	# command handling &c	1258	# command handling &c
825		1259
826	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1274	}
841		1275
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1277
844	Register a callbackf ro execution when the client sends an extcmd packet.	1278	Register a callback for execution when the client sends an (synchronous)
		1279	extcmd packet. Ext commands will be processed in the order they are
		1280	received by the server, like other user commands. The first argument is
		1281	the logged-in player. Ext commands can only be processed after a player
		1282	has logged in successfully.
845		1283
846	If the callback returns something, it is sent back as if reply was being	1284	If the callback returns something, it is sent back as if reply was being
847	called.	1285	called.
848		1286
		1287	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1288
		1289	Register a callback for execution when the client sends an (asynchronous)
		1290	exticmd packet. Exti commands are processed by the server as soon as they
		1291	are received, i.e. out of order w.r.t. other commands. The first argument
		1292	is a client socket. Exti commands can be received anytime, even before
		1293	log-in.
		1294
		1295	If the callback returns something, it is sent back as if reply was being
		1296	called.
		1297
849	=cut	1298	=cut
850		1299
851	sub register_extcmd {	1300	sub register_extcmd {
852	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
853		1302
854	$EXTCMD{$name} = $cb;	1303	$EXTCMD{$name} = $cb;
855	}	1304	}
		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
856		1313
857	cf::player->attach (	1314	cf::player->attach (
858	on_command => sub {	1315	on_command => sub {
859	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
860		1317
…		…
868	cf::override;	1325	cf::override;
869	},	1326	},
870	on_extcmd => sub {	1327	on_extcmd => sub {
871	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
872		1329
873	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
874		1331
875	if (ref $msg) {	1332	if (ref $msg) {
		1333	my ($type, $reply, @payload) =
		1334	"ARRAY" eq ref $msg
		1335	? @$msg
		1336	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1337
		1338	my @reply;
		1339
876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
877	if (my %reply = $cb->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
878	$pl->ext_reply ($msg->{msgid}, %reply);
879	}
880	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
881	} else {	1347	} else {
882	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
883	}	1349	}
884		1350
885	cf::override;	1351	cf::override;
886	},	1352	},
887	);	1353	);
888		1354
		1355	# "readahead" all extensions
889	sub load_extension {	1356	sub cache_extensions {
890	my ($path) = @_;	1357	my $grp = IO::AIO::aio_group;
891		1358
892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
893	my $base = $1;	1360	for (grep /\.ext$/, @{$_[0]}) {
894	my $pkg = $1;	1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
895	$pkg =~ s/[^[:word:]]/_/g;
896	$pkg = "ext::$pkg";
897
898	warn "... loading '$path' into '$pkg'\n";
899
900	open my $fh, "<:utf8", $path
901	or die "$path: $!";
902
903	my $source =
904	"package $pkg; use strict; use utf8;\n"
905	. "#line 1 \"$path\"\n{\n"
906	. (do { local $/; <$fh> })
907	. "\n};\n1";
908
909	unless (eval $source) {
910	my $msg = $@ ? "$path: $@\n"
911	: "extension disabled.\n";
912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
913	warn $@;
914	warn "mandatory extension failed to load, exiting.\n";
915	exit 1;
916	}	1362	}
917	die $@;
918	}	1363	};
919		1364
920	push @EXTS, $pkg;	1365	$grp
921	}	1366	}
922		1367
923	sub load_extensions {	1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
924	for my $ext (<$LIBDIR/*.ext>) {	1372	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1373	next unless -r $path;
926	eval {	1374
927	load_extension $ext;	1375	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1376	my $base = $1;
		1377	my $pkg = $1;
		1378	$pkg =~ s/[^[:word:]]/_/g;
		1379	$pkg = "ext::$pkg";
		1380
		1381	open my $fh, "<:utf8", $path
		1382	or die "$path: $!";
		1383
		1384	my $source = do { local $/; <$fh> };
		1385
		1386	my %ext = (
		1387	path => $path,
		1388	base => $base,
		1389	pkg => $pkg,
		1390	);
		1391
		1392	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1393	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1394
		1395	$ext{source} =
		1396	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1397	. "#line 1 \"$path\"\n{\n"
		1398	. $source
		1399	. "\n};\n1";
		1400
		1401	$todo{$base} = \%ext;
		1402	}
		1403
		1404	my %done;
		1405	while (%todo) {
		1406	my $progress;
		1407
		1408	while (my ($k, $v) = each %todo) {
		1409	for (split /,\s*/, $v->{meta}{depends}) {
		1410	goto skip
		1411	unless exists $done{$_};
		1412	}
		1413
		1414	warn "... loading '$k' into '$v->{pkg}'\n";
		1415
		1416	unless (eval $v->{source}) {
		1417	my $msg = $@ ? "$v->{path}: $@\n"
		1418	: "$v->{base}: extension inactive.\n";
		1419
		1420	if (exists $v->{meta}{mandatory}) {
		1421	warn $msg;
		1422	cf::cleanup "mandatory extension failed to load, exiting.";
		1423	}
		1424
		1425	warn $msg;
		1426	}
		1427
		1428	$done{$k} = delete $todo{$k};
		1429	push @EXTS, $v->{pkg};
		1430	$progress = 1;
928	1	1431	}
929	} or warn "$ext not loaded: $@";	1432
		1433	skip:
		1434	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1435	unless $progress;
		1436	}
930	}	1437	};
931	}	1438	}
932		1439
933	#############################################################################	1440	#############################################################################
934		1441
		1442	=back
		1443
935	=head2 CORE EXTENSIONS	1444	=head2 CORE EXTENSIONS
936		1445
937	Functions and methods that extend core crossfire objects.	1446	Functions and methods that extend core deliantra objects.
938		1447
939	=cut	1448	=cut
940		1449
941	package cf::player;	1450	package cf::player;
942		1451
…		…
944		1453
945	=head3 cf::player	1454	=head3 cf::player
946		1455
947	=over 4	1456	=over 4
948		1457
		1458	=item cf::player::num_playing
		1459
		1460	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1461
		1462	=cut
		1463
		1464	sub num_playing {
		1465	scalar grep
		1466	$_->ob->map
		1467	&& !$_->hidden
		1468	&& !$_->ob->flag (cf::FLAG_WIZ),
		1469	cf::player::list
		1470	}
		1471
949	=item cf::player::find $login	1472	=item cf::player::find $login
950		1473
951	Returns the given player object, loading it if necessary (might block).	1474	Returns the given player object, loading it if necessary (might block).
952		1475
953	=cut	1476	=cut
954		1477
955	sub playerdir($) {	1478	sub playerdir($) {
956	cf::localdir	1479	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1480	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1481	}
962		1482
963	sub path($) {	1483	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1484	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
974		1494
975	sub exists($) {	1495	sub exists($) {
976	my ($login) = @_;	1496	my ($login) = @_;
977		1497
978	$cf::PLAYER{$login}	1498	$cf::PLAYER{$login}
979	or cf::sync_job { !aio_stat path $login }	1499	or !aio_stat path $login
980	}	1500	}
981		1501
982	sub find($) {	1502	sub find($) {
983	return $cf::PLAYER{$_[0]} || do {	1503	return $cf::PLAYER{$_[0]} || do {
984	my $login = $_[0];	1504	my $login = $_[0];
…		…
991	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1511	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
992	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1512	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
993	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1513	aio_unlink +(playerdir $login) . "/$login.pl.pst";
994	aio_unlink +(playerdir $login) . "/$login.pl";	1514	aio_unlink +(playerdir $login) . "/$login.pl";
995		1515
996	my $pl = load_pl path $login	1516	my $f = new_from_file cf::object::thawer path $login
997	or return;	1517	or return;
		1518
		1519	my $pl = cf::player::load_pl $f
		1520	or return;
		1521
		1522	local $cf::PLAYER_LOADING{$login} = $pl;
		1523	$f->resolve_delayed_derefs;
998	$cf::PLAYER{$login} = $pl	1524	$cf::PLAYER{$login} = $pl
999	}	1525	}
1000	}	1526	}
1001	}	1527	}
1002		1528
…		…
1011	return if $pl->{deny_save};	1537	return if $pl->{deny_save};
1012		1538
1013	aio_mkdir playerdir $pl, 0770;	1539	aio_mkdir playerdir $pl, 0770;
1014	$pl->{last_save} = $cf::RUNTIME;	1540	$pl->{last_save} = $cf::RUNTIME;
1015		1541
		1542	cf::get_slot 0.01;
		1543
1016	$pl->save_pl ($path);	1544	$pl->save_pl ($path);
1017	Coro::cede;	1545	cf::cede_to_tick;
1018	}	1546	}
1019		1547
1020	sub new($) {	1548	sub new($) {
1021	my ($login) = @_;	1549	my ($login) = @_;
1022		1550
…		…
1028	$cf::PLAYER{$login} = $self;	1556	$cf::PLAYER{$login} = $self;
1029		1557
1030	$self	1558	$self
1031	}	1559	}
1032		1560
		1561	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1562
		1563	=cut
		1564
		1565	sub send_msg {
		1566	my $ns = shift->ns
		1567	or return;
		1568	$ns->send_msg (@_);
		1569	}
		1570
1033	=item $pl->quit_character	1571	=item $pl->quit_character
1034		1572
1035	Nukes the player without looking back. If logged in, the connection will	1573	Nukes the player without looking back. If logged in, the connection will
1036	be destroyed. May block for a long time.	1574	be destroyed. May block for a long time.
1037		1575
…		…
1041	my ($pl) = @_;	1579	my ($pl) = @_;
1042		1580
1043	my $name = $pl->ob->name;	1581	my $name = $pl->ob->name;
1044		1582
1045	$pl->{deny_save} = 1;	1583	$pl->{deny_save} = 1;
1046	$pl->password ("*"); # this should lock out the player until we nuked the dir	1584	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1047		1585
1048	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1586	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1049	$pl->deactivate;	1587	$pl->deactivate;
		1588	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1589	$pl->ob->check_score;
1050	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1590	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1051	$pl->ns->destroy if $pl->ns;	1591	$pl->ns->destroy if $pl->ns;
1052		1592
1053	my $path = playerdir $pl;	1593	my $path = playerdir $pl;
1054	my $temp = "$path~$cf::RUNTIME~deleting~";	1594	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1084	while and may block, so not sync_job-capable, ever.	1624	while and may block, so not sync_job-capable, ever.
1085		1625
1086	=cut	1626	=cut
1087		1627
1088	sub list_logins {	1628	sub list_logins {
1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1629	my $dirs = aio_readdir $PLAYERDIR
1090	or return [];	1630	or return [];
1091		1631
1092	my @logins;	1632	my @logins;
1093		1633
1094	for my $login (@$dirs) {	1634	for my $login (@$dirs) {
		1635	my $path = path $login;
		1636
		1637	# a .pst is a dead give-away for a valid player
		1638	# if no pst file found, open and chekc for blocked users
		1639	if (aio_stat "$path.pst") {
1095	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1640	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1096	aio_read $fh, 0, 512, my $buf, 0 or next;	1641	aio_read $fh, 0, 512, my $buf, 0 or next;
1097	$buf !~ /^password -------------$/m or next; # official not-valid tag	1642	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1643	}
1098		1644
1099	utf8::decode $login;	1645	utf8::decode $login;
1100	push @logins, $login;	1646	push @logins, $login;
1101	}	1647	}
1102		1648
…		…
1129	}	1675	}
1130		1676
1131	\@paths	1677	\@paths
1132	}	1678	}
1133		1679
		1680	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1681
		1682	Expand deliantra pod fragments into protocol xml.
		1683
1134	=item $player->ext_reply ($msgid, %msg)	1684	=item $player->ext_reply ($msgid, @msg)
1135		1685
1136	Sends an ext reply to the player.	1686	Sends an ext reply to the player.
1137		1687
1138	=cut	1688	=cut
1139		1689
1140	sub ext_reply($$%) {	1690	sub ext_reply($$@) {
1141	my ($self, $id, %msg) = @_;	1691	my ($self, $id, @msg) = @_;
1142		1692
1143	$msg{msgid} = $id;	1693	$self->ns->ext_reply ($id, @msg)
1144
1145	$self->send ("ext " . cf::to_json \%msg);
1146	}	1694	}
1147		1695
1148	=item $player->ext_event ($type, %msg)	1696	=item $player->ext_msg ($type, @msg)
1149		1697
1150	Sends an ext event to the client.	1698	Sends an ext event to the client.
1151		1699
1152	=cut	1700	=cut
1153		1701
1154	sub ext_event($$%) {	1702	sub ext_msg($$@) {
1155	my ($self, $type, %msg) = @_;	1703	my ($self, $type, @msg) = @_;
1156		1704
1157	$self->ns->ext_event ($type, %msg);	1705	$self->ns->ext_msg ($type, @msg);
1158	}	1706	}
1159		1707
1160	=head3 cf::region	1708	=head3 cf::region
1161		1709
1162	=over 4	1710	=over 4
…		…
1165		1713
1166	package cf::region;	1714	package cf::region;
1167		1715
1168	=item cf::region::find_by_path $path	1716	=item cf::region::find_by_path $path
1169		1717
1170	Tries to decuce the probable region for a map knowing only its path.	1718	Tries to decuce the likely region for a map knowing only its path.
1171		1719
1172	=cut	1720	=cut
1173		1721
1174	sub find_by_path($) {	1722	sub find_by_path($) {
1175	my ($path) = @_;	1723	my ($path) = @_;
1176		1724
1177	my ($match, $specificity);	1725	my ($match, $specificity);
1178		1726
1179	for my $region (list) {	1727	for my $region (list) {
1180	if ($region->match && $path =~ $region->match) {	1728	if ($region->{match} && $path =~ $region->{match}) {
1181	($match, $specificity) = ($region, $region->specificity)	1729	($match, $specificity) = ($region, $region->specificity)
1182	if $region->specificity > $specificity;	1730	if $region->specificity > $specificity;
1183	}	1731	}
1184	}	1732	}
1185		1733
…		…
1206	our $MAX_RESET = 3600;	1754	our $MAX_RESET = 3600;
1207	our $DEFAULT_RESET = 3000;	1755	our $DEFAULT_RESET = 3000;
1208		1756
1209	sub generate_random_map {	1757	sub generate_random_map {
1210	my ($self, $rmp) = @_;	1758	my ($self, $rmp) = @_;
		1759
		1760	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1761
1211	# mit "rum" bekleckern, nicht	1762	# mit "rum" bekleckern, nicht
1212	$self->_create_random_map (	1763	$self->_create_random_map (
1213	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1764	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1214	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1765	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1215	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1766	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1249	my ($self, $merge) = @_;	1800	my ($self, $merge) = @_;
1250		1801
1251	# we have to keep some variables in memory intact	1802	# we have to keep some variables in memory intact
1252	local $self->{path};	1803	local $self->{path};
1253	local $self->{load_path};	1804	local $self->{load_path};
1254	local $self->{deny_save};
1255	local $self->{deny_reset};
1256		1805
1257	$self->SUPER::thawer_merge ($merge);	1806	$self->SUPER::thawer_merge ($merge);
1258	}	1807	}
1259		1808
1260	sub normalise {	1809	sub normalise {
…		…
1307	$self->init; # pass $1 etc.	1856	$self->init; # pass $1 etc.
1308	return $self;	1857	return $self;
1309	}	1858	}
1310	}	1859	}
1311		1860
1312	Carp::carp "unable to resolve path '$path' (base '$base').";	1861	Carp::cluck "unable to resolve path '$path' (base '$base').";
1313	()	1862	()
1314	}	1863	}
1315		1864
1316	sub init {	1865	sub init {
1317	my ($self) = @_;	1866	my ($self) = @_;
…		…
1332		1881
1333	# the original (read-only) location	1882	# the original (read-only) location
1334	sub load_path {	1883	sub load_path {
1335	my ($self) = @_;	1884	my ($self) = @_;
1336		1885
1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1886	"$MAPDIR/$self->{path}.map"
1338	}	1887	}
1339		1888
1340	# the temporary/swap location	1889	# the temporary/swap location
1341	sub save_path {	1890	sub save_path {
1342	my ($self) = @_;	1891	my ($self) = @_;
1343		1892
1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1893	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1894	"$TMPDIR/$path.map"
1346	}	1895	}
1347		1896
1348	# the unique path, undef == no special unique path	1897	# the unique path, undef == no special unique path
1349	sub uniq_path {	1898	sub uniq_path {
1350	my ($self) = @_;	1899	my ($self) = @_;
1351		1900
1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1901	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1902	"$UNIQUEDIR/$path"
1354	}	1903	}
1355		1904
1356	# and all this just because we cannot iterate over	1905	sub decay_objects {
1357	# all maps in C++...
1358	sub change_all_map_light {
1359	my ($change) = @_;	1906	my ($self) = @_;
1360		1907
1361	$_->change_map_light ($change)	1908	return if $self->{deny_reset};
1362	for grep $_->outdoor, values %cf::MAP;	1909
		1910	$self->do_decay_objects;
1363	}	1911	}
1364		1912
1365	sub unlink_save {	1913	sub unlink_save {
1366	my ($self) = @_;	1914	my ($self) = @_;
1367		1915
…		…
1372		1920
1373	sub load_header_from($) {	1921	sub load_header_from($) {
1374	my ($self, $path) = @_;	1922	my ($self, $path) = @_;
1375		1923
1376	utf8::encode $path;	1924	utf8::encode $path;
1377	#aio_open $path, O_RDONLY, 0	1925	my $f = new_from_file cf::object::thawer $path
1378	# or return;
1379
1380	$self->_load_header ($path)
1381	or return;	1926	or return;
		1927
		1928	$self->_load_header ($f)
		1929	or return;
		1930
		1931	local $MAP_LOADING{$self->{path}} = $self;
		1932	$f->resolve_delayed_derefs;
1382		1933
1383	$self->{load_path} = $path;	1934	$self->{load_path} = $path;
1384		1935
1385	1	1936	1
1386	}	1937	}
…		…
1425	$self->load_header_orig	1976	$self->load_header_orig
1426	or return;	1977	or return;
1427	$self->prepare_orig;	1978	$self->prepare_orig;
1428	}	1979	}
1429		1980
		1981	$self->{deny_reset} = 1
		1982	if $self->no_reset;
		1983
1430	$self->default_region (cf::region::find_by_path $self->{path})	1984	$self->default_region (cf::region::find_by_path $self->{path})
1431	unless $self->default_region;	1985	unless $self->default_region;
1432		1986
1433	1	1987	1
1434	}	1988	}
…		…
1437	sub find {	1991	sub find {
1438	my ($path, $origin) = @_;	1992	my ($path, $origin) = @_;
1439		1993
1440	$path = normalise $path, $origin && $origin->path;	1994	$path = normalise $path, $origin && $origin->path;
1441		1995
		1996	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1442	cf::lock_wait "map_find:$path";	1997	my $guard2 = cf::lock_acquire "map_find:$path";
1443		1998
1444	$cf::MAP{$path} || do {	1999	$cf::MAP{$path} || do {
1445	my $guard = cf::lock_acquire "map_find:$path";
1446	my $map = new_from_path cf::map $path	2000	my $map = new_from_path cf::map $path
1447	or return;	2001	or return;
1448		2002
1449	$map->{last_save} = $cf::RUNTIME;	2003	$map->{last_save} = $cf::RUNTIME;
1450		2004
1451	$map->load_header	2005	$map->load_header
1452	or return;	2006	or return;
1453		2007
1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2008	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1455	# doing this can freeze the server in a sync job, obviously	2009	# doing this can freeze the server in a sync job, obviously
1456	#$cf::WAIT_FOR_TICK->wait;	2010	#$cf::WAIT_FOR_TICK->wait;
		2011	undef $guard2;
		2012	undef $guard1;
1457	$map->reset;	2013	$map->reset;
1458	undef $guard;
1459	return find $path;	2014	return find $path;
1460	}	2015	}
1461		2016
1462	$cf::MAP{$path} = $map	2017	$cf::MAP{$path} = $map
1463	}	2018	}
1464	}	2019	}
1465		2020
1466	sub pre_load { }	2021	sub pre_load { }
1467	sub post_load { }	2022	#sub post_load { } # XS
1468		2023
1469	sub load {	2024	sub load {
1470	my ($self) = @_;	2025	my ($self) = @_;
1471		2026
1472	local $self->{deny_reset} = 1; # loading can take a long time	2027	local $self->{deny_reset} = 1; # loading can take a long time
1473		2028
1474	my $path = $self->{path};	2029	my $path = $self->{path};
		2030
		2031	{
1475	my $guard = cf::lock_acquire "map_load:$path";	2032	my $guard = cf::lock_acquire "map_data:$path";
1476		2033
		2034	return unless $self->valid;
1477	return if $self->in_memory != cf::MAP_SWAPPED;	2035	return unless $self->in_memory == cf::MAP_SWAPPED;
1478		2036
1479	$self->in_memory (cf::MAP_LOADING);	2037	$self->in_memory (cf::MAP_LOADING);
1480		2038
1481	$self->alloc;	2039	$self->alloc;
1482		2040
1483	$self->pre_load;	2041	$self->pre_load;
1484	Coro::cede;	2042	cf::cede_to_tick;
1485		2043
1486	$self->_load_objects ($self->{load_path}, 1)	2044	my $f = new_from_file cf::object::thawer $self->{load_path};
		2045	$f->skip_block;
		2046	$self->_load_objects ($f)
1487	or return;	2047	or return;
1488		2048
1489	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2049	$self->post_load_original
1490	if delete $self->{load_original};	2050	if delete $self->{load_original};
1491		2051
1492	if (my $uniq = $self->uniq_path) {	2052	if (my $uniq = $self->uniq_path) {
1493	utf8::encode $uniq;	2053	utf8::encode $uniq;
1494	if (aio_open $uniq, O_RDONLY, 0) {	2054	unless (aio_stat $uniq) {
		2055	if (my $f = new_from_file cf::object::thawer $uniq) {
1495	$self->clear_unique_items;	2056	$self->clear_unique_items;
1496	$self->_load_objects ($uniq, 0);	2057	$self->_load_objects ($f);
		2058	$f->resolve_delayed_derefs;
		2059	}
1497	}	2060	}
1498	}	2061	}
1499		2062
1500	Coro::cede;	2063	$f->resolve_delayed_derefs;
		2064
		2065	cf::cede_to_tick;
1501	# now do the right thing for maps	2066	# now do the right thing for maps
1502	$self->link_multipart_objects;	2067	$self->link_multipart_objects;
1503	Coro::cede;
1504
1505	unless ($self->{deny_activate}) {
1506	$self->decay_objects;
1507	$self->fix_auto_apply;
1508	$self->update_buttons;
1509	Coro::cede;
1510	$self->set_darkness_map;
1511	$self->difficulty ($self->estimate_difficulty)	2068	$self->difficulty ($self->estimate_difficulty)
1512	unless $self->difficulty;	2069	unless $self->difficulty;
1513	Coro::cede;	2070	cf::cede_to_tick;
		2071
		2072	unless ($self->{deny_activate}) {
		2073	$self->decay_objects;
		2074	$self->fix_auto_apply;
		2075	$self->update_buttons;
		2076	cf::cede_to_tick;
1514	$self->activate;	2077	$self->activate;
1515	Coro::cede;	2078	}
		2079
		2080	$self->{last_save} = $cf::RUNTIME;
		2081	$self->last_access ($cf::RUNTIME);
		2082
		2083	$self->in_memory (cf::MAP_ACTIVE);
1516	}	2084	}
1517		2085
1518	$self->post_load;	2086	$self->post_load;
1519	Coro::cede;
1520
1521	$self->in_memory (cf::MAP_IN_MEMORY);
1522	}	2087	}
1523		2088
1524	sub customise_for {	2089	sub customise_for {
1525	my ($self, $ob) = @_;	2090	my ($self, $ob) = @_;
1526		2091
1527	return find "~" . $ob->name . "/" . $self->{path}	2092	return find "~" . $ob->name . "/" . $self->{path}
1528	if $self->per_player;	2093	if $self->per_player;
1529		2094
		2095	# return find "?party/" . $ob->name . "/" . $self->{path}
		2096	# if $self->per_party;
		2097
1530	$self	2098	$self
1531	}	2099	}
1532		2100
1533	# find and load all maps in the 3x3 area around a map	2101	# find and load all maps in the 3x3 area around a map
1534	sub load_diag {	2102	sub load_neighbours {
1535	my ($map) = @_;	2103	my ($map) = @_;
1536		2104
1537	my @diag; # diagonal neighbours	2105	my @neigh; # diagonal neighbours
1538		2106
1539	for (0 .. 3) {	2107	for (0 .. 3) {
1540	my $neigh = $map->tile_path ($_)	2108	my $neigh = $map->tile_path ($_)
1541	or next;	2109	or next;
1542	$neigh = find $neigh, $map	2110	$neigh = find $neigh, $map
1543	or next;	2111	or next;
1544	$neigh->load;	2112	$neigh->load;
1545		2113
		2114	push @neigh,
1546	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2115	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1547	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2116	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1548	}	2117	}
1549		2118
1550	for (@diag) {	2119	for (grep defined $_->[0], @neigh) {
		2120	my ($path, $origin) = @$_;
1551	my $neigh = find @$_	2121	my $neigh = find $path, $origin
1552	or next;	2122	or next;
1553	$neigh->load;	2123	$neigh->load;
1554	}	2124	}
1555	}	2125	}
1556		2126
…		…
1561	}	2131	}
1562		2132
1563	sub do_load_sync {	2133	sub do_load_sync {
1564	my ($map) = @_;	2134	my ($map) = @_;
1565		2135
		2136	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2137	if $Coro::current == $Coro::main;
		2138
1566	cf::sync_job { $map->load };	2139	cf::sync_job { $map->load };
1567	}	2140	}
1568		2141
1569	our %MAP_PREFETCH;	2142	our %MAP_PREFETCH;
1570	our $MAP_PREFETCHER = undef;	2143	our $MAP_PREFETCHER = undef;
1571		2144
1572	sub find_async {	2145	sub find_async {
1573	my ($path, $origin) = @_;	2146	my ($path, $origin, $load) = @_;
1574		2147
1575	$path = normalise $path, $origin && $origin->{path};	2148	$path = normalise $path, $origin && $origin->{path};
1576		2149
1577	if (my $map = $cf::MAP{$path}) {	2150	if (my $map = $cf::MAP{$path}) {
1578	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2151	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1579	}	2152	}
1580		2153
1581	undef $MAP_PREFETCH{$path};	2154	$MAP_PREFETCH{$path} |= $load;
		2155
1582	$MAP_PREFETCHER ||= cf::async {	2156	$MAP_PREFETCHER ||= cf::async {
		2157	$Coro::current->{desc} = "map prefetcher";
		2158
1583	while (%MAP_PREFETCH) {	2159	while (%MAP_PREFETCH) {
1584	for my $path (keys %MAP_PREFETCH) {	2160	while (my ($k, $v) = each %MAP_PREFETCH) {
1585	my $map = find $path	2161	if (my $map = find $k) {
1586	or next;
1587	$map->load;	2162	$map->load if $v;
		2163	}
1588		2164
1589	delete $MAP_PREFETCH{$path};	2165	delete $MAP_PREFETCH{$k};
1590	}	2166	}
1591	}	2167	}
1592	undef $MAP_PREFETCHER;	2168	undef $MAP_PREFETCHER;
1593	};	2169	};
1594	$MAP_PREFETCHER->prio (6);	2170	$MAP_PREFETCHER->prio (6);
…		…
1597	}	2173	}
1598		2174
1599	sub save {	2175	sub save {
1600	my ($self) = @_;	2176	my ($self) = @_;
1601		2177
1602	my $lock = cf::lock_acquire "map_data:" . $self->path;	2178	my $lock = cf::lock_acquire "map_data:$self->{path}";
1603		2179
1604	$self->{last_save} = $cf::RUNTIME;	2180	$self->{last_save} = $cf::RUNTIME;
1605		2181
1606	return unless $self->dirty;	2182	return unless $self->dirty;
1607		2183
…		…
1613	return if $self->{deny_save};	2189	return if $self->{deny_save};
1614		2190
1615	local $self->{last_access} = $self->last_access;#d#	2191	local $self->{last_access} = $self->last_access;#d#
1616		2192
1617	cf::async {	2193	cf::async {
		2194	$Coro::current->{desc} = "map player save";
1618	$_->contr->save for $self->players;	2195	$_->contr->save for $self->players;
1619	};	2196	};
		2197
		2198	cf::get_slot 0.02;
1620		2199
1621	if ($uniq) {	2200	if ($uniq) {
1622	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2201	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1623	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2202	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1624	} else {	2203	} else {
…		…
1630	my ($self) = @_;	2209	my ($self) = @_;
1631		2210
1632	# save first because save cedes	2211	# save first because save cedes
1633	$self->save;	2212	$self->save;
1634		2213
1635	my $lock = cf::lock_acquire "map_data:" . $self->path;	2214	my $lock = cf::lock_acquire "map_data:$self->{path}";
1636		2215
1637	return if $self->players;	2216	return if $self->players;
1638	return if $self->in_memory != cf::MAP_IN_MEMORY;	2217	return if $self->in_memory != cf::MAP_ACTIVE;
1639	return if $self->{deny_save};	2218	return if $self->{deny_save};
1640		2219
		2220	$self->in_memory (cf::MAP_SWAPPED);
		2221
		2222	$self->deactivate;
		2223	$_->clear_links_to ($self) for values %cf::MAP;
1641	$self->clear;	2224	$self->clear;
1642	$self->in_memory (cf::MAP_SWAPPED);
1643	}	2225	}
1644		2226
1645	sub reset_at {	2227	sub reset_at {
1646	my ($self) = @_;	2228	my ($self) = @_;
1647		2229
1648	# TODO: safety, remove and allow resettable per-player maps	2230	# TODO: safety, remove and allow resettable per-player maps
1649	return 1e99 if $self->isa ("ext::map_per_player");#d#
1650	return 1e99 if $self->{deny_reset};	2231	return 1e99 if $self->{deny_reset};
1651		2232
1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2233	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2234	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1654		2235
…		…
1665	my ($self) = @_;	2246	my ($self) = @_;
1666		2247
1667	my $lock = cf::lock_acquire "map_data:$self->{path}";	2248	my $lock = cf::lock_acquire "map_data:$self->{path}";
1668		2249
1669	return if $self->players;	2250	return if $self->players;
1670	return if $self->isa ("ext::map_per_player");#d#
1671		2251
1672	warn "resetting map ", $self->path;#d#	2252	warn "resetting map ", $self->path, "\n";
1673		2253
1674	$self->in_memory (cf::MAP_SWAPPED);	2254	$self->in_memory (cf::MAP_SWAPPED);
1675		2255
1676	# need to save uniques path	2256	# need to save uniques path
1677	unless ($self->{deny_save}) {	2257	unless ($self->{deny_save}) {
…		…
1681	if $uniq;	2261	if $uniq;
1682	}	2262	}
1683		2263
1684	delete $cf::MAP{$self->path};	2264	delete $cf::MAP{$self->path};
1685		2265
		2266	$self->deactivate;
		2267	$_->clear_links_to ($self) for values %cf::MAP;
1686	$self->clear;	2268	$self->clear;
1687
1688	$_->clear_links_to ($self) for values %cf::MAP;
1689		2269
1690	$self->unlink_save;	2270	$self->unlink_save;
1691	$self->destroy;	2271	$self->destroy;
1692	}	2272	}
1693		2273
1694	my $nuke_counter = "aaaa";	2274	my $nuke_counter = "aaaa";
1695		2275
1696	sub nuke {	2276	sub nuke {
1697	my ($self) = @_;	2277	my ($self) = @_;
1698		2278
		2279	{
		2280	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2281
1699	delete $cf::MAP{$self->path};	2282	delete $cf::MAP{$self->path};
1700		2283
1701	$self->unlink_save;	2284	$self->unlink_save;
1702		2285
1703	bless $self, "cf::map";	2286	bless $self, "cf::map";
1704	delete $self->{deny_reset};	2287	delete $self->{deny_reset};
1705	$self->{deny_save} = 1;	2288	$self->{deny_save} = 1;
1706	$self->reset_timeout (1);	2289	$self->reset_timeout (1);
1707	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2290	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1708		2291
1709	$cf::MAP{$self->path} = $self;	2292	$cf::MAP{$self->path} = $self;
		2293	}
1710		2294
1711	$self->reset; # polite request, might not happen	2295	$self->reset; # polite request, might not happen
		2296	}
		2297
		2298	=item $maps = cf::map::tmp_maps
		2299
		2300	Returns an arrayref with all map paths of currently instantiated and saved
		2301	maps. May block.
		2302
		2303	=cut
		2304
		2305	sub tmp_maps() {
		2306	[
		2307	map {
		2308	utf8::decode $_;
		2309	/\.map$/
		2310	? normalise $_
		2311	: ()
		2312	} @{ aio_readdir $TMPDIR or [] }
		2313	]
		2314	}
		2315
		2316	=item $maps = cf::map::random_maps
		2317
		2318	Returns an arrayref with all map paths of currently instantiated and saved
		2319	random maps. May block.
		2320
		2321	=cut
		2322
		2323	sub random_maps() {
		2324	[
		2325	map {
		2326	utf8::decode $_;
		2327	/\.map$/
		2328	? normalise "?random/$_"
		2329	: ()
		2330	} @{ aio_readdir $RANDOMDIR or [] }
		2331	]
1712	}	2332	}
1713		2333
1714	=item cf::map::unique_maps	2334	=item cf::map::unique_maps
1715		2335
1716	Returns an arrayref of paths of all shared maps that have	2336	Returns an arrayref of paths of all shared maps that have
1717	instantiated unique items. May block.	2337	instantiated unique items. May block.
1718		2338
1719	=cut	2339	=cut
1720		2340
1721	sub unique_maps() {	2341	sub unique_maps() {
1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2342	[
1723	or return;	2343	map {
1724
1725	my @paths;
1726
1727	for (@$files) {
1728	utf8::decode $_;	2344	utf8::decode $_;
1729	next if /\.pst$/;	2345	s/\.map$//; # TODO future compatibility hack
1730	next unless /^$PATH_SEP/o;	2346	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1731		2347	? ()
1732	push @paths, cf::map::normalise $_;	2348	: normalise $_
		2349	} @{ aio_readdir $UNIQUEDIR or [] }
1733	}	2350	]
1734
1735	\@paths
1736	}	2351	}
1737		2352
1738	package cf;	2353	=item cf::map::static_maps
		2354
		2355	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2356	file in the shared directory excluding F</styles> and F</editor>). May
		2357	block.
		2358
		2359	=cut
		2360
		2361	sub static_maps() {
		2362	my @dirs = "";
		2363	my @maps;
		2364
		2365	while (@dirs) {
		2366	my $dir = shift @dirs;
		2367
		2368	next if $dir eq "/styles" || $dir eq "/editor";
		2369
		2370	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2371	or return;
		2372
		2373	for (@$files) {
		2374	s/\.map$// or next;
		2375	utf8::decode $_;
		2376	push @maps, "$dir/$_";
		2377	}
		2378
		2379	push @dirs, map "$dir/$_", @$dirs;
		2380	}
		2381
		2382	\@maps
		2383	}
1739		2384
1740	=back	2385	=back
1741		2386
1742	=head3 cf::object	2387	=head3 cf::object
1743		2388
…		…
1747		2392
1748	=over 4	2393	=over 4
1749		2394
1750	=item $ob->inv_recursive	2395	=item $ob->inv_recursive
1751		2396
1752	Returns the inventory of the object _and_ their inventories, recursively.	2397	Returns the inventory of the object I<and> their inventories, recursively,
		2398	but I<not> the object itself.
1753		2399
1754	=cut	2400	=cut
1755		2401
1756	sub inv_recursive_;	2402	sub inv_recursive_;
1757	sub inv_recursive_ {	2403	sub inv_recursive_ {
…		…
1760		2406
1761	sub inv_recursive {	2407	sub inv_recursive {
1762	inv_recursive_ inv $_[0]	2408	inv_recursive_ inv $_[0]
1763	}	2409	}
1764		2410
		2411	=item $ref = $ob->ref
		2412
		2413	Creates and returns a persistent reference to an object that can be stored as a string.
		2414
		2415	=item $ob = cf::object::deref ($refstring)
		2416
		2417	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2418	even if the object actually exists. May block.
		2419
		2420	=cut
		2421
		2422	sub deref {
		2423	my ($ref) = @_;
		2424
		2425	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2426	my ($uuid, $name) = ($1, $2);
		2427	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2428	or return;
		2429	$pl->ob->uuid eq $uuid
		2430	or return;
		2431
		2432	$pl->ob
		2433	} else {
		2434	warn "$ref: cannot resolve object reference\n";
		2435	undef
		2436	}
		2437	}
		2438
1765	package cf;	2439	package cf;
1766		2440
1767	=back	2441	=back
1768		2442
1769	=head3 cf::object::player	2443	=head3 cf::object::player
…		…
1775	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2449	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1776	can be C<undef>. Does the right thing when the player is currently in a	2450	can be C<undef>. Does the right thing when the player is currently in a
1777	dialogue with the given NPC character.	2451	dialogue with the given NPC character.
1778		2452
1779	=cut	2453	=cut
		2454
		2455	our $SAY_CHANNEL = {
		2456	id => "say",
		2457	title => "Map",
		2458	reply => "say ",
		2459	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2460	};
		2461
		2462	our $CHAT_CHANNEL = {
		2463	id => "chat",
		2464	title => "Chat",
		2465	reply => "chat ",
		2466	tooltip => "Player chat and shouts, global to the server.",
		2467	};
1780		2468
1781	# rough implementation of a future "reply" method that works	2469	# rough implementation of a future "reply" method that works
1782	# with dialog boxes.	2470	# with dialog boxes.
1783	#TODO: the first argument must go, split into a $npc->reply_to ( method	2471	#TODO: the first argument must go, split into a $npc->reply_to ( method
1784	sub cf::object::player::reply($$$;$) {	2472	sub cf::object::player::reply($$$;$) {
…		…
1786		2474
1787	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2475	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1788		2476
1789	if ($self->{record_replies}) {	2477	if ($self->{record_replies}) {
1790	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2478	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2479
1791	} else {	2480	} else {
		2481	my $pl = $self->contr;
		2482
		2483	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2484	my $dialog = $pl->{npc_dialog};
		2485	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2486
		2487	} else {
1792	$msg = $npc->name . " says: $msg" if $npc;	2488	$msg = $npc->name . " says: $msg" if $npc;
1793	$self->message ($msg, $flags);	2489	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2490	}
1794	}	2491	}
		2492	}
		2493
		2494	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2495
		2496	=cut
		2497
		2498	sub cf::object::send_msg {
		2499	my $pl = shift->contr
		2500	or return;
		2501	$pl->send_msg (@_);
1795	}	2502	}
1796		2503
1797	=item $player_object->may ("access")	2504	=item $player_object->may ("access")
1798		2505
1799	Returns wether the given player is authorized to access resource "access"	2506	Returns wether the given player is authorized to access resource "access"
…		…
1812		2519
1813	=item $player_object->enter_link	2520	=item $player_object->enter_link
1814		2521
1815	Freezes the player and moves him/her to a special map (C<{link}>).	2522	Freezes the player and moves him/her to a special map (C<{link}>).
1816		2523
1817	The player should be reasonably safe there for short amounts of time. You	2524	The player should be reasonably safe there for short amounts of time (e.g.
1818	I<MUST> call C<leave_link> as soon as possible, though.	2525	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2526	though, as the palyer cannot control the character while it is on the link
		2527	map.
1819		2528
1820	Will never block.	2529	Will never block.
1821		2530
1822	=item $player_object->leave_link ($map, $x, $y)	2531	=item $player_object->leave_link ($map, $x, $y)
1823		2532
…		…
1846	$self->deactivate_recursive;	2555	$self->deactivate_recursive;
1847		2556
1848	return if UNIVERSAL::isa $self->map, "ext::map_link";	2557	return if UNIVERSAL::isa $self->map, "ext::map_link";
1849		2558
1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2559	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1851	if $self->map;	2560	if $self->map && $self->map->{path} ne "{link}";
1852		2561
1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2562	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1854	}	2563	}
1855		2564
1856	sub cf::object::player::leave_link {	2565	sub cf::object::player::leave_link {
1857	my ($self, $map, $x, $y) = @_;	2566	my ($self, $map, $x, $y) = @_;
		2567
		2568	return unless $self->contr->active;
1858		2569
1859	my $link_pos = delete $self->{_link_pos};	2570	my $link_pos = delete $self->{_link_pos};
1860		2571
1861	unless ($map) {	2572	unless ($map) {
1862	# restore original map position	2573	# restore original map position
…		…
1873	($x, $y) = (-1, -1)	2584	($x, $y) = (-1, -1)
1874	unless (defined $x) && (defined $y);	2585	unless (defined $x) && (defined $y);
1875		2586
1876	# use -1 or undef as default coordinates, not 0, 0	2587	# use -1 or undef as default coordinates, not 0, 0
1877	($x, $y) = ($map->enter_x, $map->enter_y)	2588	($x, $y) = ($map->enter_x, $map->enter_y)
1878	if $x <=0 && $y <= 0;	2589	if $x <= 0 && $y <= 0;
1879		2590
1880	$map->load;	2591	$map->load;
1881	$map->load_diag;	2592	$map->load_neighbours;
1882		2593
1883	return unless $self->contr->active;	2594	return unless $self->contr->active;
1884	$self->activate_recursive;
1885		2595
1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2596	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1887	$self->enter_map ($map, $x, $y);	2597	$self->enter_map ($map, $x, $y);
1888	}
1889		2598
1890	cf::player->attach (	2599	# only activate afterwards, to support waiting in hooks
1891	on_logout => sub {	2600	$self->activate_recursive;
1892	my ($pl) = @_;	2601	}
1893		2602
1894	# abort map switching before logout	2603	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1895	if ($pl->ob->{_link_pos}) {
1896	cf::sync_job {
1897	$pl->ob->leave_link
1898	};
1899	}
1900	},
1901	on_login => sub {
1902	my ($pl) = @_;
1903		2604
1904	# try to abort aborted map switching on player login :)	2605	Moves the player to the given map-path and coordinates by first freezing
1905	# should happen only on crashes	2606	her, loading and preparing them map, calling the provided $check callback
1906	if ($pl->ob->{_link_pos}) {	2607	that has to return the map if sucecssful, and then unfreezes the player on
1907	$pl->ob->enter_link;	2608	the new (success) or old (failed) map position. In either case, $done will
1908	(async {	2609	be called at the end of this process.
1909	$pl->ob->reply (undef,
1910	"There was an internal problem at your last logout, "
1911	. "the server will try to bring you to your intended destination in a second.",
1912	cf::NDI_RED);
1913	# we need this sleep as the login has a concurrent enter_exit running
1914	# and this sleep increases chances of the player not ending up in scorn
1915	Coro::Timer::sleep 1;
1916	$pl->ob->leave_link;
1917	})->prio (2);
1918	}
1919	},
1920	);
1921		2610
1922	=item $player_object->goto ($path, $x, $y)	2611	Note that $check will be called with a potentially non-loaded map, so if
		2612	it needs a loaded map it has to call C<< ->load >>.
1923		2613
1924	=cut	2614	=cut
		2615
		2616	our $GOTOGEN;
1925		2617
1926	sub cf::object::player::goto {	2618	sub cf::object::player::goto {
1927	my ($self, $path, $x, $y) = @_;	2619	my ($self, $path, $x, $y, $check, $done) = @_;
		2620
		2621	# do generation counting so two concurrent goto's will be executed in-order
		2622	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1928		2623
1929	$self->enter_link;	2624	$self->enter_link;
1930		2625
1931	(async {	2626	(async {
		2627	$Coro::current->{desc} = "player::goto $path $x $y";
		2628
		2629	# *tag paths override both path and x|y
		2630	if ($path =~ /^\*(.*)$/) {
		2631	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2632	my $ob = $obs[rand @obs];
		2633
		2634	# see if we actually can go there
		2635	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2636	$ob = $obs[rand @obs];
		2637	} else {
		2638	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2639	}
		2640	# else put us there anyways for now #d#
		2641
		2642	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2643	} else {
		2644	($path, $x, $y) = (undef, undef, undef);
		2645	}
		2646	}
		2647
1932	my $map = eval {	2648	my $map = eval {
1933	my $map = cf::map::find $path;	2649	my $map = defined $path ? cf::map::find $path : undef;
		2650
		2651	if ($map) {
1934	$map = $map->customise_for ($self) if $map;	2652	$map = $map->customise_for ($self);
		2653	$map = $check->($map) if $check && $map;
		2654	} else {
		2655	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2656	}
		2657
1935	$map	2658	$map
		2659	};
		2660
		2661	if ($@) {
		2662	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2663	LOG llevError | logBacktrace, Carp::longmess $@;
1936	} or	2664	}
1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1938		2665
		2666	if ($gen == $self->{_goto_generation}) {
		2667	delete $self->{_goto_generation};
1939	$self->leave_link ($map, $x, $y);	2668	$self->leave_link ($map, $x, $y);
		2669	}
		2670
		2671	$done->() if $done;
1940	})->prio (1);	2672	})->prio (1);
1941	}	2673	}
1942		2674
1943	=item $player_object->enter_exit ($exit_object)	2675	=item $player_object->enter_exit ($exit_object)
1944		2676
…		…
1964	}	2696	}
1965		2697
1966	sub prepare_random_map {	2698	sub prepare_random_map {
1967	my ($exit) = @_;	2699	my ($exit) = @_;
1968		2700
1969	my $guard = cf::lock_acquire "exit_prepare:$exit";
1970
1971	# all this does is basically replace the /! path by	2701	# all this does is basically replace the /! path by
1972	# a new random map path (?random/...) with a seed	2702	# a new random map path (?random/...) with a seed
1973	# that depends on the exit object	2703	# that depends on the exit object
1974		2704
1975	my $rmp = parse_random_map_params $exit->msg;	2705	my $rmp = parse_random_map_params $exit->msg;
…		…
1977	if ($exit->map) {	2707	if ($exit->map) {
1978	$rmp->{region} = $exit->region->name;	2708	$rmp->{region} = $exit->region->name;
1979	$rmp->{origin_map} = $exit->map->path;	2709	$rmp->{origin_map} = $exit->map->path;
1980	$rmp->{origin_x} = $exit->x;	2710	$rmp->{origin_x} = $exit->x;
1981	$rmp->{origin_y} = $exit->y;	2711	$rmp->{origin_y} = $exit->y;
		2712
		2713	$exit->map->touch;
1982	}	2714	}
1983		2715
1984	$rmp->{random_seed} ||= $exit->random_seed;	2716	$rmp->{random_seed} ||= $exit->random_seed;
1985		2717
1986	my $data = cf::to_json $rmp;	2718	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1987	my $md5 = Digest::MD5::md5_hex $data;	2719	my $md5 = Digest::MD5::md5_hex $data;
1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2720	my $meta = "$RANDOMDIR/$md5.meta";
1989		2721
1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2722	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1991	aio_write $fh, 0, (length $data), $data, 0;	2723	aio_write $fh, 0, (length $data), $data, 0;
1992	undef $fh;	2724	undef $fh;
1993	aio_rename "$meta~", $meta;	2725	aio_rename "$meta~", $meta;
1994		2726
		2727	my $slaying = "?random/$md5";
		2728
		2729	if ($exit->valid) {
1995	$exit->slaying ("?random/$md5");	2730	$exit->slaying ("?random/$md5");
1996	$exit->msg (undef);	2731	$exit->msg (undef);
		2732	}
1997	}	2733	}
1998	}	2734	}
1999		2735
2000	sub cf::object::player::enter_exit {	2736	sub cf::object::player::enter_exit {
2001	my ($self, $exit) = @_;	2737	my ($self, $exit) = @_;
2002		2738
2003	return unless $self->type == cf::PLAYER;	2739	return unless $self->type == cf::PLAYER;
2004		2740
2005	if ($exit->slaying eq "/!") {
2006	#TODO: this should de-fi-ni-te-ly not be a sync-job
2007	# the problem is that $exit might not survive long enough
2008	# so it needs to be done right now, right here
2009	cf::sync_job { prepare_random_map $exit };
2010	}
2011
2012	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2013	my $hp = $exit->stats->hp;
2014	my $sp = $exit->stats->sp;
2015
2016	$self->enter_link;	2741	$self->enter_link;
2017		2742
2018	(async {	2743	(async {
2019	$self->deactivate_recursive; # just to be sure	2744	$Coro::current->{desc} = "enter_exit";
		2745
2020	unless (eval {	2746	unless (eval {
		2747	$self->deactivate_recursive; # just to be sure
		2748
		2749	# random map handling
		2750	{
		2751	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2752
		2753	prepare_random_map $exit
		2754	if $exit->slaying eq "/!";
		2755	}
		2756
		2757	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2758	my $x = $exit->stats->hp;
		2759	my $y = $exit->stats->sp;
		2760
2021	$self->goto ($slaying, $hp, $sp);	2761	$self->goto ($map, $x, $y);
2022		2762
		2763	# if exit is damned, update players death & WoR home-position
		2764	$self->contr->savebed ($map, $x, $y)
		2765	if $exit->flag (cf::FLAG_DAMNED);
		2766
2023	1;	2767	1
2024	}) {	2768	}) {
2025	$self->message ("Something went wrong deep within the crossfire server. "	2769	$self->message ("Something went wrong deep within the deliantra server. "
2026	. "I'll try to bring you back to the map you were before. "	2770	. "I'll try to bring you back to the map you were before. "
2027	. "Please report this to the dungeon master!",	2771	. "Please report this to the dungeon master!",
2028	cf::NDI_UNIQUE | cf::NDI_RED);	2772	cf::NDI_UNIQUE | cf::NDI_RED);
2029		2773
2030	warn "ERROR in enter_exit: $@";	2774	warn "ERROR in enter_exit: $@";
…		…
2049		2793
2050	utf8::encode $text;	2794	utf8::encode $text;
2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2795	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2052	}	2796	}
2053		2797
		2798	=item $client->send_big_packet ($pkt)
		2799
		2800	Like C<send_packet>, but tries to compress large packets, and fragments
		2801	them as required.
		2802
		2803	=cut
		2804
		2805	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2806
		2807	sub cf::client::send_big_packet {
		2808	my ($self, $pkt) = @_;
		2809
		2810	# try lzf for large packets
		2811	$pkt = "lzf " . Compress::LZF::compress $pkt
		2812	if 1024 <= length $pkt and $self->{can_lzf};
		2813
		2814	# split very large packets
		2815	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2816	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2817	$pkt = "frag";
		2818	}
		2819
		2820	$self->send_packet ($pkt);
		2821	}
		2822
		2823	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2824
		2825	Send a drawinfo or msg packet to the client, formatting the msg for the
		2826	client if neccessary. C<$type> should be a string identifying the type of
		2827	the message, with C<log> being the default. If C<$color> is negative, suppress
		2828	the message unless the client supports the msg packet.
		2829
		2830	=cut
		2831
		2832	# non-persistent channels (usually the info channel)
		2833	our %CHANNEL = (
		2834	"c/motd" => {
		2835	id => "infobox",
		2836	title => "MOTD",
		2837	reply => undef,
		2838	tooltip => "The message of the day",
		2839	},
		2840	"c/identify" => {
		2841	id => "infobox",
		2842	title => "Identify",
		2843	reply => undef,
		2844	tooltip => "Items recently identified",
		2845	},
		2846	"c/examine" => {
		2847	id => "infobox",
		2848	title => "Examine",
		2849	reply => undef,
		2850	tooltip => "Signs and other items you examined",
		2851	},
		2852	"c/shopinfo" => {
		2853	id => "infobox",
		2854	title => "Shop Info",
		2855	reply => undef,
		2856	tooltip => "What your bargaining skill tells you about the shop",
		2857	},
		2858	"c/book" => {
		2859	id => "infobox",
		2860	title => "Book",
		2861	reply => undef,
		2862	tooltip => "The contents of a note or book",
		2863	},
		2864	"c/lookat" => {
		2865	id => "infobox",
		2866	title => "Look",
		2867	reply => undef,
		2868	tooltip => "What you saw there",
		2869	},
		2870	"c/who" => {
		2871	id => "infobox",
		2872	title => "Players",
		2873	reply => undef,
		2874	tooltip => "Shows players who are currently online",
		2875	},
		2876	"c/body" => {
		2877	id => "infobox",
		2878	title => "Body Parts",
		2879	reply => undef,
		2880	tooltip => "Shows which body parts you posess and are available",
		2881	},
		2882	"c/statistics" => {
		2883	id => "infobox",
		2884	title => "Statistics",
		2885	reply => undef,
		2886	tooltip => "Shows your primary statistics",
		2887	},
		2888	"c/skills" => {
		2889	id => "infobox",
		2890	title => "Skills",
		2891	reply => undef,
		2892	tooltip => "Shows your experience per skill and item power",
		2893	},
		2894	"c/shopitems" => {
		2895	id => "infobox",
		2896	title => "Shop Items",
		2897	reply => undef,
		2898	tooltip => "Shows the items currently for sale in this shop",
		2899	},
		2900	"c/resistances" => {
		2901	id => "infobox",
		2902	title => "Resistances",
		2903	reply => undef,
		2904	tooltip => "Shows your resistances",
		2905	},
		2906	"c/pets" => {
		2907	id => "infobox",
		2908	title => "Pets",
		2909	reply => undef,
		2910	tooltip => "Shows information abotu your pets/a specific pet",
		2911	},
		2912	"c/perceiveself" => {
		2913	id => "infobox",
		2914	title => "Perceive Self",
		2915	reply => undef,
		2916	tooltip => "You gained detailed knowledge about yourself",
		2917	},
		2918	"c/uptime" => {
		2919	id => "infobox",
		2920	title => "Uptime",
		2921	reply => undef,
		2922	tooltip => "How long the server has been running since last restart",
		2923	},
		2924	"c/mapinfo" => {
		2925	id => "infobox",
		2926	title => "Map Info",
		2927	reply => undef,
		2928	tooltip => "Information related to the maps",
		2929	},
		2930	"c/party" => {
		2931	id => "party",
		2932	title => "Party",
		2933	reply => "gsay ",
		2934	tooltip => "Messages and chat related to your party",
		2935	},
		2936	"c/death" => {
		2937	id => "death",
		2938	title => "Death",
		2939	reply => undef,
		2940	tooltip => "Reason for and more info about your most recent death",
		2941	},
		2942	"c/say" => $SAY_CHANNEL,
		2943	"c/chat" => $CHAT_CHANNEL,
		2944	);
		2945
		2946	sub cf::client::send_msg {
		2947	my ($self, $channel, $msg, $color, @extra) = @_;
		2948
		2949	$msg = $self->pl->expand_cfpod ($msg)
		2950	unless $color & cf::NDI_VERBATIM;
		2951
		2952	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2953
		2954	# check predefined channels, for the benefit of C
		2955	if ($CHANNEL{$channel}) {
		2956	$channel = $CHANNEL{$channel};
		2957
		2958	$self->ext_msg (channel_info => $channel);
		2959	$channel = $channel->{id};
		2960
		2961	} elsif (ref $channel) {
		2962	# send meta info to client, if not yet sent
		2963	unless (exists $self->{channel}{$channel->{id}}) {
		2964	$self->{channel}{$channel->{id}} = $channel;
		2965	$self->ext_msg (channel_info => $channel);
		2966	}
		2967
		2968	$channel = $channel->{id};
		2969	}
		2970
		2971	return unless @extra || length $msg;
		2972
		2973	# default colour, mask it out
		2974	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2975	if $color & cf::NDI_DEF;
		2976
		2977	my $pkt = "msg "
		2978	. $self->{json_coder}->encode (
		2979	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2980	);
		2981
		2982	$self->send_big_packet ($pkt);
		2983	}
		2984
2054	=item $client->ext_event ($type, %msg)	2985	=item $client->ext_msg ($type, @msg)
2055		2986
2056	Sends an exti event to the client.	2987	Sends an ext event to the client.
2057		2988
2058	=cut	2989	=cut
2059		2990
2060	sub cf::client::ext_event($$%) {	2991	sub cf::client::ext_msg($$@) {
2061	my ($self, $type, %msg) = @_;	2992	my ($self, $type, @msg) = @_;
2062		2993
		2994	if ($self->extcmd == 2) {
		2995	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2996	} elsif ($self->extcmd == 1) { # TODO: remove
2063	$msg{msgtype} = "event_$type";	2997	push @msg, msgtype => "event_$type";
2064	$self->send_packet ("ext " . cf::to_json \%msg);	2998	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2999	}
		3000	}
		3001
		3002	=item $client->ext_reply ($msgid, @msg)
		3003
		3004	Sends an ext reply to the client.
		3005
		3006	=cut
		3007
		3008	sub cf::client::ext_reply($$@) {
		3009	my ($self, $id, @msg) = @_;
		3010
		3011	if ($self->extcmd == 2) {
		3012	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3013	} elsif ($self->extcmd == 1) {
		3014	#TODO: version 1, remove
		3015	unshift @msg, msgtype => "reply", msgid => $id;
		3016	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3017	}
2065	}	3018	}
2066		3019
2067	=item $success = $client->query ($flags, "text", \&cb)	3020	=item $success = $client->query ($flags, "text", \&cb)
2068		3021
2069	Queues a query to the client, calling the given callback with	3022	Queues a query to the client, calling the given callback with
2070	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3023	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2071	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3024	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2072		3025
2073	Queries can fail, so check the return code. Or don't, as queries will become	3026	Queries can fail, so check the return code. Or don't, as queries will
2074	reliable at some point in the future.	3027	become reliable at some point in the future.
2075		3028
2076	=cut	3029	=cut
2077		3030
2078	sub cf::client::query {	3031	sub cf::client::query {
2079	my ($self, $flags, $text, $cb) = @_;	3032	my ($self, $flags, $text, $cb) = @_;
…		…
2087	utf8::encode $text;	3040	utf8::encode $text;
2088	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3041	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2089		3042
2090	$self->send_packet ($self->{query_queue}[0][0])	3043	$self->send_packet ($self->{query_queue}[0][0])
2091	if @{ $self->{query_queue} } == 1;	3044	if @{ $self->{query_queue} } == 1;
		3045
		3046	1
2092	}	3047	}
2093		3048
2094	cf::client->attach (	3049	cf::client->attach (
		3050	on_connect => sub {
		3051	my ($ns) = @_;
		3052
		3053	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3054	},
2095	on_reply => sub {	3055	on_reply => sub {
2096	my ($ns, $msg) = @_;	3056	my ($ns, $msg) = @_;
2097		3057
2098	# this weird shuffling is so that direct followup queries	3058	# this weird shuffling is so that direct followup queries
2099	# get handled first	3059	# get handled first
…		…
2111	} else {	3071	} else {
2112	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3072	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2113	}	3073	}
2114	}	3074	}
2115	},	3075	},
		3076	on_exticmd => sub {
		3077	my ($ns, $buf) = @_;
		3078
		3079	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3080
		3081	if (ref $msg) {
		3082	my ($type, $reply, @payload) =
		3083	"ARRAY" eq ref $msg
		3084	? @$msg
		3085	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3086
		3087	my @reply;
		3088
		3089	if (my $cb = $EXTICMD{$type}) {
		3090	@reply = $cb->($ns, @payload);
		3091	}
		3092
		3093	$ns->ext_reply ($reply, @reply)
		3094	if $reply;
		3095
		3096	} else {
		3097	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3098	}
		3099
		3100	cf::override;
		3101	},
2116	);	3102	);
2117		3103
2118	=item $client->async (\&cb)	3104	=item $client->async (\&cb)
2119		3105
2120	Create a new coroutine, running the specified callback. The coroutine will	3106	Create a new coroutine, running the specified callback. The coroutine will
…		…
2161	our $safe = new Safe "safe";	3147	our $safe = new Safe "safe";
2162	our $safe_hole = new Safe::Hole;	3148	our $safe_hole = new Safe::Hole;
2163		3149
2164	$SIG{FPE} = 'IGNORE';	3150	$SIG{FPE} = 'IGNORE';
2165		3151
2166	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3152	$safe->permit_only (Opcode::opset qw(
		3153	:base_core :base_mem :base_orig :base_math :base_loop
		3154	grepstart grepwhile mapstart mapwhile
		3155	sort time
		3156	));
2167		3157
2168	# here we export the classes and methods available to script code	3158	# here we export the classes and methods available to script code
2169		3159
2170	=pod	3160	=pod
2171		3161
2172	The following functions and methods are available within a safe environment:	3162	The following functions and methods are available within a safe environment:
2173		3163
2174	cf::object contr pay_amount pay_player map	3164	cf::object
		3165	contr pay_amount pay_player map x y force_find force_add destroy
		3166	insert remove name archname title slaying race decrease split
		3167	value
		3168
2175	cf::object::player player	3169	cf::object::player
2176	cf::player peaceful	3170	player
2177	cf::map trigger	3171
		3172	cf::player
		3173	peaceful
		3174
		3175	cf::map
		3176	trigger
2178		3177
2179	=cut	3178	=cut
2180		3179
2181	for (	3180	for (
2182	["cf::object" => qw(contr pay_amount pay_player map)],	3181	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3182	insert remove inv nrof name archname title slaying race
		3183	decrease split destroy change_exp value msg lore send_msg)],
2183	["cf::object::player" => qw(player)],	3184	["cf::object::player" => qw(player)],
2184	["cf::player" => qw(peaceful)],	3185	["cf::player" => qw(peaceful send_msg)],
2185	["cf::map" => qw(trigger)],	3186	["cf::map" => qw(trigger)],
2186	) {	3187	) {
2187	no strict 'refs';	3188	no strict 'refs';
2188	my ($pkg, @funs) = @$_;	3189	my ($pkg, @funs) = @$_;
2189	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3190	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2207		3208
2208	my $qcode = $code;	3209	my $qcode = $code;
2209	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3210	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2210	$qcode =~ s/\n/\\n/g;	3211	$qcode =~ s/\n/\\n/g;
2211		3212
		3213	%vars = (_dummy => 0) unless %vars;
		3214
		3215	my @res;
2212	local $_;	3216	local $_;
2213	local @safe::cf::_safe_eval_args = values %vars;
2214		3217
2215	my $eval =	3218	my $eval =
2216	"do {\n"	3219	"do {\n"
2217	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3220	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2218	. "#line 0 \"{$qcode}\"\n"	3221	. "#line 0 \"{$qcode}\"\n"
2219	. $code	3222	. $code
2220	. "\n}"	3223	. "\n}"
2221	;	3224	;
2222		3225
		3226	if ($CFG{safe_eval}) {
2223	sub_generation_inc;	3227	sub_generation_inc;
		3228	local @safe::cf::_safe_eval_args = values %vars;
2224	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3229	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2225	sub_generation_inc;	3230	sub_generation_inc;
		3231	} else {
		3232	local @cf::_safe_eval_args = values %vars;
		3233	@res = wantarray ? eval eval : scalar eval $eval;
		3234	}
2226		3235
2227	if ($@) {	3236	if ($@) {
2228	warn "$@";	3237	warn "$@";
2229	warn "while executing safe code '$code'\n";	3238	warn "while executing safe code '$code'\n";
2230	warn "with arguments " . (join " ", %vars) . "\n";	3239	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2249	=cut	3258	=cut
2250		3259
2251	sub register_script_function {	3260	sub register_script_function {
2252	my ($fun, $cb) = @_;	3261	my ($fun, $cb) = @_;
2253		3262
2254	no strict 'refs';	3263	$fun = "safe::$fun" if $CFG{safe_eval};
2255	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3264	*$fun = $safe_hole->wrap ($cb);
2256	}	3265	}
2257		3266
2258	=back	3267	=back
2259		3268
2260	=cut	3269	=cut
2261
2262	#############################################################################
2263
2264	=head2 EXTENSION DATABASE SUPPORT
2265
2266	Crossfire maintains a very simple database for extension use. It can
2267	currently store anything that can be serialised using Storable, which
2268	excludes objects.
2269
2270	The parameter C<$family> should best start with the name of the extension
2271	using it, it should be unique.
2272
2273	=over 4
2274
2275	=item $value = cf::db_get $family => $key
2276
2277	Returns a single value from the database.
2278
2279	=item cf::db_put $family => $key => $value
2280
2281	Stores the given C<$value> in the family.
2282
2283	=cut
2284
2285	our $DB;
2286
2287	sub db_init {
2288	unless ($DB) {
2289	$DB = BDB::db_create $DB_ENV;
2290
2291	cf::sync_job {
2292	eval {
2293	$DB->set_flags (BDB::CHKSUM);
2294
2295	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2296	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2297	cf::cleanup "db_open(db): $!" if $!;
2298	};
2299	cf::cleanup "db_open(db): $@" if $@;
2300	};
2301
2302	my $path = cf::localdir . "/database.pst";
2303	if (stat $path) {
2304	cf::sync_job {
2305	my $pst = Storable::retrieve $path;
2306
2307	cf::db_put (board => data => $pst->{board});
2308	cf::db_put (guildrules => data => $pst->{guildrules});
2309	cf::db_put (rent => balance => $pst->{rent}{balance});
2310	BDB::db_env_txn_checkpoint $DB_ENV;
2311
2312	unlink $path;
2313	};
2314	}
2315	}
2316	}
2317
2318	sub db_get($$) {
2319	my $key = "$_[0]/$_[1]";
2320
2321	cf::sync_job {
2322	BDB::db_get $DB, undef, $key, my $data;
2323
2324	$! ? ()
2325	: Compress::LZF::sthaw $data
2326	}
2327	}
2328
2329	sub db_put($$$) {
2330	BDB::dbreq_pri 4;
2331	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2332	}
2333		3270
2334	#############################################################################	3271	#############################################################################
2335	# the server's init and main functions	3272	# the server's init and main functions
2336		3273
2337	sub load_facedata {	3274	sub load_facedata($) {
2338	my $path = sprintf "%s/facedata", cf::datadir;	3275	my ($path) = @_;
		3276
		3277	# HACK to clear player env face cache, we need some signal framework
		3278	# for this (global event?)
		3279	%ext::player_env::MUSIC_FACE_CACHE = ();
		3280
		3281	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2339		3282
2340	warn "loading facedata from $path\n";	3283	warn "loading facedata from $path\n";
2341		3284
2342	my $facedata;	3285	my $facedata;
2343	0 < aio_load $path, $facedata	3286	0 < aio_load $path, $facedata
…		…
2346	$facedata = Coro::Storable::thaw $facedata;	3289	$facedata = Coro::Storable::thaw $facedata;
2347		3290
2348	$facedata->{version} == 2	3291	$facedata->{version} == 2
2349	or cf::cleanup "$path: version mismatch, cannot proceed.";	3292	or cf::cleanup "$path: version mismatch, cannot proceed.";
2350		3293
		3294	# patch in the exptable
		3295	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3296	$facedata->{resource}{"res/exp_table"} = {
		3297	type => FT_RSRC,
		3298	data => $exp_table,
		3299	hash => (Digest::MD5::md5 $exp_table),
		3300	};
		3301	cf::cede_to_tick;
		3302
2351	{	3303	{
2352	my $faces = $facedata->{faceinfo};	3304	my $faces = $facedata->{faceinfo};
2353		3305
2354	while (my ($face, $info) = each %$faces) {	3306	while (my ($face, $info) = each %$faces) {
2355	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3307	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3308
2356	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3309	cf::face::set_visibility $idx, $info->{visibility};
		3310	cf::face::set_magicmap $idx, $info->{magicmap};
2357	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3311	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2358	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3312	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2359	Coro::cede;	3313
		3314	cf::cede_to_tick;
2360	}	3315	}
2361		3316
2362	while (my ($face, $info) = each %$faces) {	3317	while (my ($face, $info) = each %$faces) {
2363	next unless $info->{smooth};	3318	next unless $info->{smooth};
		3319
2364	my $idx = cf::face::find $face	3320	my $idx = cf::face::find $face
2365	or next;	3321	or next;
		3322
2366	if (my $smooth = cf::face::find $info->{smooth}) {	3323	if (my $smooth = cf::face::find $info->{smooth}) {
		3324	cf::face::set_smooth $idx, $smooth;
2367	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3325	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2368	} else {	3326	} else {
2369	warn "smooth face '$info->{smooth}' not found for face '$face'";	3327	warn "smooth face '$info->{smooth}' not found for face '$face'";
2370	}	3328	}
2371	Coro::cede;	3329
		3330	cf::cede_to_tick;
2372	}	3331	}
2373	}	3332	}
2374		3333
2375	{	3334	{
2376	my $anims = $facedata->{animinfo};	3335	my $anims = $facedata->{animinfo};
2377		3336
2378	while (my ($anim, $info) = each %$anims) {	3337	while (my ($anim, $info) = each %$anims) {
2379	cf::anim::set $anim, $info->{frames}, $info->{facings};	3338	cf::anim::set $anim, $info->{frames}, $info->{facings};
2380	Coro::cede;	3339	cf::cede_to_tick;
2381	}	3340	}
2382		3341
2383	cf::anim::invalidate_all; # d'oh	3342	cf::anim::invalidate_all; # d'oh
2384	}	3343	}
2385		3344
		3345	{
		3346	my $res = $facedata->{resource};
		3347
		3348	while (my ($name, $info) = each %$res) {
		3349	if (defined $info->{type}) {
		3350	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3351
		3352	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3353	cf::face::set_type $idx, $info->{type};
		3354	} else {
		3355	$RESOURCE{$name} = $info;
		3356	}
		3357
		3358	cf::cede_to_tick;
		3359	}
		3360	}
		3361
		3362	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3363
2386	1	3364	1
2387	}	3365	}
2388		3366
		3367	cf::global->attach (on_resource_update => sub {
		3368	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3369	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3370
		3371	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3372	my $sound = $soundconf->{compat}[$_]
		3373	or next;
		3374
		3375	my $face = cf::face::find "sound/$sound->[1]";
		3376	cf::sound::set $sound->[0] => $face;
		3377	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3378	}
		3379
		3380	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3381	my $face = cf::face::find "sound/$v";
		3382	cf::sound::set $k => $face;
		3383	}
		3384	}
		3385	});
		3386
		3387	register_exticmd fx_want => sub {
		3388	my ($ns, $want) = @_;
		3389
		3390	while (my ($k, $v) = each %$want) {
		3391	$ns->fx_want ($k, $v);
		3392	}
		3393	};
		3394
		3395	sub load_resource_file($) {
		3396	my $guard = lock_acquire "load_resource_file";
		3397
		3398	my $status = load_resource_file_ $_[0];
		3399	get_slot 0.1, 100;
		3400	cf::arch::commit_load;
		3401
		3402	$status
		3403	}
		3404
		3405	sub reload_regions {
		3406	# HACK to clear player env face cache, we need some signal framework
		3407	# for this (global event?)
		3408	%ext::player_env::MUSIC_FACE_CACHE = ();
		3409
		3410	load_resource_file "$MAPDIR/regions"
		3411	or die "unable to load regions file\n";
		3412
		3413	for (cf::region::list) {
		3414	$_->{match} = qr/$_->{match}/
		3415	if exists $_->{match};
		3416	}
		3417	}
		3418
		3419	sub reload_facedata {
		3420	load_facedata "$DATADIR/facedata"
		3421	or die "unable to load facedata\n";
		3422	}
		3423
2389	sub load_archetypes {	3424	sub reload_archetypes {
2390	load_archetype_file sprintf "%s/archetypes", cf::datadir; # remove when stable	3425	load_resource_file "$DATADIR/archetypes"
2391	load_archetype_file sprintf "%s/archetypes", cf::datadir	3426	or die "unable to load archetypes\n";
2392	}	3427	}
2393		3428
2394	sub load_treasures {	3429	sub reload_treasures {
2395	load_treasure_file sprintf "%s/treasures", cf::datadir	3430	load_resource_file "$DATADIR/treasures"
		3431	or die "unable to load treasurelists\n";
2396	}	3432	}
2397		3433
2398	sub reload_resources {	3434	sub reload_resources {
2399	warn "reloading resource files...\n";	3435	warn "reloading resource files...\n";
2400		3436
2401	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2402	or die "unable to load regions file\n";
2403	load_facedata	3437	reload_facedata;
2404	or die "unable to load facedata\n";
2405	load_archetypes	3438	reload_archetypes;
2406	or die "unable to load archetypes\n";	3439	reload_regions;
2407	load_treasures	3440	reload_treasures;
2408	or die "unable to load treasurelists\n";
2409		3441
2410	warn "finished reloading resource files\n";	3442	warn "finished reloading resource files\n";
2411	}	3443	}
2412		3444
2413	sub init {	3445	sub reload_config {
2414	reload_resources;	3446	warn "reloading config file...\n";
2415	}
2416		3447
2417	sub cfg_load {
2418	open my $fh, "<:utf8", cf::confdir . "/config"	3448	open my $fh, "<:utf8", "$CONFDIR/config"
2419	or return;	3449	or return;
2420		3450
2421	local $/;	3451	local $/;
2422	*CFG = YAML::Syck::Load <$fh>;	3452	*CFG = YAML::XS::Load scalar <$fh>;
2423		3453
2424	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3454	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2425		3455
2426	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3456	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2427	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3457	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2431	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3461	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2432	and die "WARNING: m(un)lockall failed: $!\n";	3462	and die "WARNING: m(un)lockall failed: $!\n";
2433	};	3463	};
2434	warn $@ if $@;	3464	warn $@ if $@;
2435	}	3465	}
		3466
		3467	warn "finished reloading resource files\n";
		3468	}
		3469
		3470	sub pidfile() {
		3471	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3472	or die "$PIDFILE: $!";
		3473	flock $fh, &Fcntl::LOCK_EX
		3474	or die "$PIDFILE: flock: $!";
		3475	$fh
		3476	}
		3477
		3478	# make sure only one server instance is running at any one time
		3479	sub atomic {
		3480	my $fh = pidfile;
		3481
		3482	my $pid = <$fh>;
		3483	kill 9, $pid if $pid > 0;
		3484
		3485	seek $fh, 0, 0;
		3486	print $fh $$;
		3487	}
		3488
		3489	sub main_loop {
		3490	warn "EV::loop starting\n";
		3491	if (1) {
		3492	EV::loop;
		3493	}
		3494	warn "EV::loop returned\n";
		3495	goto &main_loop unless $REALLY_UNLOOP;
2436	}	3496	}
2437		3497
2438	sub main {	3498	sub main {
		3499	cf::init_globals; # initialise logging
		3500
		3501	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3502	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3503	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3504	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3505
		3506	cf::init_experience;
		3507	cf::init_anim;
		3508	cf::init_attackmess;
		3509	cf::init_dynamic;
		3510
		3511	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3512
2439	# we must not ever block the main coroutine	3513	# we must not ever block the main coroutine
2440	local $Coro::idle = sub {	3514	local $Coro::idle = sub {
2441	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3515	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2442	(async {	3516	(async {
2443	Event::one_event;	3517	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3518	EV::loop EV::LOOP_ONESHOT;
2444	})->prio (Coro::PRIO_MAX);	3519	})->prio (Coro::PRIO_MAX);
2445	};	3520	};
2446		3521
2447	cfg_load;	3522	evthread_start IO::AIO::poll_fileno;
		3523
		3524	cf::sync_job {
		3525	cf::load_settings;
		3526	cf::load_materials;
		3527
		3528	reload_resources;
		3529	reload_config;
2448	db_init;	3530	db_init;
		3531
		3532	cf::init_uuid;
		3533	cf::init_signals;
		3534	cf::init_commands;
		3535	cf::init_skills;
		3536
		3537	cf::init_beforeplay;
		3538
		3539	atomic;
		3540
2449	load_extensions;	3541	load_extensions;
2450		3542
2451	$TICK_WATCHER->start;	3543	utime time, time, $RUNTIMEFILE;
2452	Event::loop;	3544
		3545	# no (long-running) fork's whatsoever before this point(!)
		3546	use POSIX ();
		3547	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3548
		3549	(pop @POST_INIT)->(0) while @POST_INIT;
		3550	};
		3551
		3552	main_loop;
2453	}	3553	}
2454		3554
2455	#############################################################################	3555	#############################################################################
2456	# initialisation and cleanup	3556	# initialisation and cleanup
2457		3557
2458	# install some emergency cleanup handlers	3558	# install some emergency cleanup handlers
2459	BEGIN {	3559	BEGIN {
		3560	our %SIGWATCHER = ();
2460	for my $signal (qw(INT HUP TERM)) {	3561	for my $signal (qw(INT HUP TERM)) {
2461	Event->signal (	3562	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2462	reentrant => 0,
2463	data => WF_AUTOCANCEL,
2464	signal => $signal,
2465	prio => 0,
2466	cb => sub {
2467	cf::cleanup "SIG$signal";	3563	cf::cleanup "SIG$signal";
2468	},
2469	);	3564	};
		3565	}
		3566	}
		3567
		3568	sub write_runtime_sync {
		3569	# first touch the runtime file to show we are still running:
		3570	# the fsync below can take a very very long time.
		3571
		3572	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3573
		3574	my $guard = cf::lock_acquire "write_runtime";
		3575
		3576	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3577	or return;
		3578
		3579	my $value = $cf::RUNTIME + 90 + 10;
		3580	# 10 is the runtime save interval, for a monotonic clock
		3581	# 60 allows for the watchdog to kill the server.
		3582
		3583	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3584	and return;
		3585
		3586	# always fsync - this file is important
		3587	aio_fsync $fh
		3588	and return;
		3589
		3590	# touch it again to show we are up-to-date
		3591	aio_utime $fh, undef, undef;
		3592
		3593	close $fh
		3594	or return;
		3595
		3596	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3597	and return;
		3598
		3599	warn "runtime file written.\n";
		3600
2470	}	3601	1
		3602	}
		3603
		3604	our $uuid_lock;
		3605	our $uuid_skip;
		3606
		3607	sub write_uuid_sync($) {
		3608	$uuid_skip ||= $_[0];
		3609
		3610	return if $uuid_lock;
		3611	local $uuid_lock = 1;
		3612
		3613	my $uuid = "$LOCALDIR/uuid";
		3614
		3615	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3616	or return;
		3617
		3618	my $value = uuid_seq uuid_cur;
		3619
		3620	unless ($value) {
		3621	warn "cowardly refusing to write zero uuid value!\n";
		3622	return;
		3623	}
		3624
		3625	my $value = uuid_str $value + $uuid_skip;
		3626	$uuid_skip = 0;
		3627
		3628	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3629	and return;
		3630
		3631	# always fsync - this file is important
		3632	aio_fsync $fh
		3633	and return;
		3634
		3635	close $fh
		3636	or return;
		3637
		3638	aio_rename "$uuid~", $uuid
		3639	and return;
		3640
		3641	warn "uuid file written ($value).\n";
		3642
		3643	1
		3644
		3645	}
		3646
		3647	sub write_uuid($$) {
		3648	my ($skip, $sync) = @_;
		3649
		3650	$sync ? write_uuid_sync $skip
		3651	: async { write_uuid_sync $skip };
2471	}	3652	}
2472		3653
2473	sub emergency_save() {	3654	sub emergency_save() {
2474	my $freeze_guard = cf::freeze_mainloop;	3655	my $freeze_guard = cf::freeze_mainloop;
2475		3656
2476	warn "enter emergency perl save\n";	3657	warn "emergency_perl_save: enter\n";
2477		3658
2478	cf::sync_job {	3659	cf::sync_job {
		3660	# this is a trade-off: we want to be very quick here, so
		3661	# save all maps without fsync, and later call a global sync
		3662	# (which in turn might be very very slow)
		3663	local $USE_FSYNC = 0;
		3664
2479	# use a peculiar iteration method to avoid tripping on perl	3665	# use a peculiar iteration method to avoid tripping on perl
2480	# refcount bugs in for. also avoids problems with players	3666	# refcount bugs in for. also avoids problems with players
2481	# and maps saved/destroyed asynchronously.	3667	# and maps saved/destroyed asynchronously.
2482	warn "begin emergency player save\n";	3668	warn "emergency_perl_save: begin player save\n";
2483	for my $login (keys %cf::PLAYER) {	3669	for my $login (keys %cf::PLAYER) {
2484	my $pl = $cf::PLAYER{$login} or next;	3670	my $pl = $cf::PLAYER{$login} or next;
2485	$pl->valid or next;	3671	$pl->valid or next;
		3672	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2486	$pl->save;	3673	$pl->save;
2487	}	3674	}
2488	warn "end emergency player save\n";	3675	warn "emergency_perl_save: end player save\n";
2489		3676
2490	warn "begin emergency map save\n";	3677	warn "emergency_perl_save: begin map save\n";
2491	for my $path (keys %cf::MAP) {	3678	for my $path (keys %cf::MAP) {
2492	my $map = $cf::MAP{$path} or next;	3679	my $map = $cf::MAP{$path} or next;
2493	$map->valid or next;	3680	$map->valid or next;
2494	$map->save;	3681	$map->save;
2495	}	3682	}
2496	warn "end emergency map save\n";	3683	warn "emergency_perl_save: end map save\n";
2497		3684
2498	warn "begin emergency database checkpoint\n";	3685	warn "emergency_perl_save: begin database checkpoint\n";
2499	BDB::db_env_txn_checkpoint $DB_ENV;	3686	BDB::db_env_txn_checkpoint $DB_ENV;
2500	warn "end emergency database checkpoint\n";	3687	warn "emergency_perl_save: end database checkpoint\n";
		3688
		3689	warn "emergency_perl_save: begin write uuid\n";
		3690	write_uuid_sync 1;
		3691	warn "emergency_perl_save: end write uuid\n";
2501	};	3692	};
2502		3693
		3694	warn "emergency_perl_save: starting sync()\n";
		3695	IO::AIO::aio_sync sub {
		3696	warn "emergency_perl_save: finished sync()\n";
		3697	};
		3698
2503	warn "leave emergency perl save\n";	3699	warn "emergency_perl_save: leave\n";
2504	}	3700	}
2505		3701
2506	sub post_cleanup {	3702	sub post_cleanup {
2507	my ($make_core) = @_;	3703	my ($make_core) = @_;
2508		3704
2509	warn Carp::longmess "post_cleanup backtrace"	3705	warn Carp::longmess "post_cleanup backtrace"
2510	if $make_core;	3706	if $make_core;
2511	}
2512		3707
		3708	my $fh = pidfile;
		3709	unlink $PIDFILE if <$fh> == $$;
		3710	}
		3711
		3712	# a safer delete_package, copied from Symbol
		3713	sub clear_package($) {
		3714	my $pkg = shift;
		3715
		3716	# expand to full symbol table name if needed
		3717	unless ($pkg =~ /^main::.*::$/) {
		3718	$pkg = "main$pkg" if $pkg =~ /^::/;
		3719	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3720	$pkg .= '::' unless $pkg =~ /::$/;
		3721	}
		3722
		3723	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3724	my $stem_symtab = *{$stem}{HASH};
		3725
		3726	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3727	or return;
		3728
		3729	# clear all symbols
		3730	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3731	for my $name (keys %$leaf_symtab) {
		3732	_gv_clear *{"$pkg$name"};
		3733	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3734	}
		3735	warn "cleared package $pkg\n";#d#
		3736	}
		3737
2513	sub reload() {	3738	sub do_reload_perl() {
2514	# can/must only be called in main	3739	# can/must only be called in main
2515	if ($Coro::current != $Coro::main) {	3740	if ($Coro::current != $Coro::main) {
2516	warn "can only reload from main coroutine";	3741	warn "can only reload from main coroutine";
2517	return;	3742	return;
2518	}	3743	}
2519		3744
		3745	return if $RELOAD++;
		3746
		3747	my $t1 = EV::time;
		3748
		3749	while ($RELOAD) {
2520	warn "reloading...";	3750	warn "reloading...";
2521		3751
2522	warn "entering sync_job";	3752	warn "entering sync_job";
2523		3753
2524	cf::sync_job {	3754	cf::sync_job {
2525	cf::write_runtime; # external watchdog should not bark	3755	cf::write_runtime_sync; # external watchdog should not bark
2526	cf::emergency_save;	3756	cf::emergency_save;
2527	cf::write_runtime; # external watchdog should not bark	3757	cf::write_runtime_sync; # external watchdog should not bark
2528		3758
2529	warn "syncing database to disk";	3759	warn "syncing database to disk";
2530	BDB::db_env_txn_checkpoint $DB_ENV;	3760	BDB::db_env_txn_checkpoint $DB_ENV;
2531		3761
2532	# if anything goes wrong in here, we should simply crash as we already saved	3762	# if anything goes wrong in here, we should simply crash as we already saved
2533		3763
2534	warn "cancelling all WF_AUTOCANCEL watchers";
2535	for (Event::all_watchers) {
2536	$_->cancel if $_->data & WF_AUTOCANCEL;
2537	}
2538
2539	warn "flushing outstanding aio requests";	3764	warn "flushing outstanding aio requests";
2540	for (;;) {
2541	BDB::flush;
2542	IO::AIO::flush;
2543	Coro::cede;
2544	last unless IO::AIO::nreqs || BDB::nreqs;	3765	while (IO::AIO::nreqs || BDB::nreqs) {
2545	warn "iterate...";	3766	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2546	}
2547
2548	++$RELOAD;
2549
2550	warn "cancelling all extension coros";
2551	$_->cancel for values %EXT_CORO;
2552	%EXT_CORO = ();
2553
2554	warn "removing commands";
2555	%COMMAND = ();
2556
2557	warn "removing ext commands";
2558	%EXTCMD = ();
2559
2560	warn "unloading/nuking all extensions";
2561	for my $pkg (@EXTS) {
2562	warn "... unloading $pkg";
2563
2564	if (my $cb = $pkg->can ("unload")) {
2565	eval {
2566	$cb->($pkg);
2567	1
2568	} or warn "$pkg unloaded, but with errors: $@";
2569	}	3767	}
2570		3768
2571	warn "... nuking $pkg";	3769	warn "cancelling all extension coros";
2572	Symbol::delete_package $pkg;	3770	$_->cancel for values %EXT_CORO;
2573	}	3771	%EXT_CORO = ();
2574		3772
2575	warn "unloading all perl modules loaded from $LIBDIR";	3773	warn "removing commands";
2576	while (my ($k, $v) = each %INC) {	3774	%COMMAND = ();
2577	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2578		3775
		3776	warn "removing ext/exti commands";
		3777	%EXTCMD = ();
		3778	%EXTICMD = ();
		3779
		3780	warn "unloading/nuking all extensions";
		3781	for my $pkg (@EXTS) {
2579	warn "... unloading $k";	3782	warn "... unloading $pkg";
2580	delete $INC{$k};
2581		3783
2582	$k =~ s/\.pm$//;
2583	$k =~ s/\//::/g;
2584
2585	if (my $cb = $k->can ("unload_module")) {	3784	if (my $cb = $pkg->can ("unload")) {
		3785	eval {
2586	$cb->();	3786	$cb->($pkg);
		3787	1
		3788	} or warn "$pkg unloaded, but with errors: $@";
		3789	}
		3790
		3791	warn "... clearing $pkg";
		3792	clear_package $pkg;
2587	}	3793	}
2588		3794
2589	Symbol::delete_package $k;	3795	warn "unloading all perl modules loaded from $LIBDIR";
		3796	while (my ($k, $v) = each %INC) {
		3797	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3798
		3799	warn "... unloading $k";
		3800	delete $INC{$k};
		3801
		3802	$k =~ s/\.pm$//;
		3803	$k =~ s/\//::/g;
		3804
		3805	if (my $cb = $k->can ("unload_module")) {
		3806	$cb->();
		3807	}
		3808
		3809	clear_package $k;
2590	}	3810	}
2591		3811
2592	warn "getting rid of safe::, as good as possible";	3812	warn "getting rid of safe::, as good as possible";
2593	Symbol::delete_package "safe::$_"	3813	clear_package "safe::$_"
2594	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3814	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2595		3815
2596	warn "unloading cf.pm \"a bit\"";	3816	warn "unloading cf.pm \"a bit\"";
2597	delete $INC{"cf.pm"};	3817	delete $INC{"cf.pm"};
		3818	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2598		3819
2599	# don't, removes xs symbols, too,	3820	# don't, removes xs symbols, too,
2600	# and global variables created in xs	3821	# and global variables created in xs
2601	#Symbol::delete_package __PACKAGE__;	3822	#clear_package __PACKAGE__;
2602		3823
2603	warn "unload completed, starting to reload now";	3824	warn "unload completed, starting to reload now";
2604		3825
2605	warn "reloading cf.pm";	3826	warn "reloading cf.pm";
2606	require cf;	3827	require cf;
2607	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3828	cf::_connect_to_perl_1;
2608		3829
2609	warn "loading config and database again";	3830	warn "loading config and database again";
2610	cf::cfg_load;	3831	cf::reload_config;
2611		3832
2612	warn "loading extensions";	3833	warn "loading extensions";
2613	cf::load_extensions;	3834	cf::load_extensions;
2614		3835
		3836	if ($REATTACH_ON_RELOAD) {
2615	warn "reattaching attachments to objects/players";	3837	warn "reattaching attachments to objects/players";
2616	_global_reattach; # objects, sockets	3838	_global_reattach; # objects, sockets
2617	warn "reattaching attachments to maps";	3839	warn "reattaching attachments to maps";
2618	reattach $_ for values %MAP;	3840	reattach $_ for values %MAP;
2619	warn "reattaching attachments to players";	3841	warn "reattaching attachments to players";
2620	reattach $_ for values %PLAYER;	3842	reattach $_ for values %PLAYER;
		3843	}
2621		3844
2622	warn "loading reloadable resources";	3845	warn "running post_init jobs";
2623	reload_resources;	3846	(pop @POST_INIT)->(1) while @POST_INIT;
2624		3847
2625	warn "leaving sync_job";	3848	warn "leaving sync_job";
2626		3849
2627	1	3850	1
2628	} or do {	3851	} or do {
2629	warn $@;	3852	warn $@;
2630	warn "error while reloading, exiting.";	3853	cf::cleanup "error while reloading, exiting.";
2631	exit 1;	3854	};
		3855
		3856	warn "reloaded";
		3857	--$RELOAD;
		3858	}
		3859
		3860	$t1 = EV::time - $t1;
		3861	warn "reload completed in ${t1}s\n";
		3862	};
		3863
		3864	our $RELOAD_WATCHER; # used only during reload
		3865
		3866	sub reload_perl() {
		3867	# doing reload synchronously and two reloads happen back-to-back,
		3868	# coro crashes during coro_state_free->destroy here.
		3869
		3870	$RELOAD_WATCHER ||= cf::async {
		3871	Coro::AIO::aio_wait cache_extensions;
		3872
		3873	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3874	do_reload_perl;
		3875	undef $RELOAD_WATCHER;
		3876	};
2632	};	3877	};
2633		3878	}
2634	warn "reloaded";
2635	};
2636
2637	our $RELOAD_WATCHER; # used only during reload
2638		3879
2639	register_command "reload" => sub {	3880	register_command "reload" => sub {
2640	my ($who, $arg) = @_;	3881	my ($who, $arg) = @_;
2641		3882
2642	if ($who->flag (FLAG_WIZ)) {	3883	if ($who->flag (FLAG_WIZ)) {
2643	$who->message ("reloading server.");	3884	$who->message ("reloading server.");
2644		3885	async {
2645	# doing reload synchronously and two reloads happen back-to-back,	3886	$Coro::current->{desc} = "perl_reload";
2646	# coro crashes during coro_state_free->destroy here.
2647
2648	$RELOAD_WATCHER ||= Event->timer (
2649	reentrant => 0,
2650	after => 0,
2651	data => WF_AUTOCANCEL,
2652	cb => sub {
2653	reload;	3887	reload_perl;
2654	undef $RELOAD_WATCHER;
2655	},
2656	);	3888	};
2657	}	3889	}
2658	};	3890	};
2659		3891
2660	unshift @INC, $LIBDIR;	3892	unshift @INC, $LIBDIR;
2661		3893
…		…
2663		3895
2664	our @WAIT_FOR_TICK;	3896	our @WAIT_FOR_TICK;
2665	our @WAIT_FOR_TICK_BEGIN;	3897	our @WAIT_FOR_TICK_BEGIN;
2666		3898
2667	sub wait_for_tick {	3899	sub wait_for_tick {
2668	return unless $TICK_WATCHER->is_active;
2669	return if $Coro::current == $Coro::main;	3900	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2670		3901
2671	my $signal = new Coro::Signal;	3902	my $signal = new Coro::Signal;
2672	push @WAIT_FOR_TICK, $signal;	3903	push @WAIT_FOR_TICK, $signal;
2673	$signal->wait;	3904	$signal->wait;
2674	}	3905	}
2675		3906
2676	sub wait_for_tick_begin {	3907	sub wait_for_tick_begin {
2677	return unless $TICK_WATCHER->is_active;
2678	return if $Coro::current == $Coro::main;	3908	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2679		3909
2680	my $signal = new Coro::Signal;	3910	my $signal = new Coro::Signal;
2681	push @WAIT_FOR_TICK_BEGIN, $signal;	3911	push @WAIT_FOR_TICK_BEGIN, $signal;
2682	$signal->wait;	3912	$signal->wait;
2683	}	3913	}
2684		3914
2685	$TICK_WATCHER = Event->timer (	3915	sub tick {
2686	reentrant => 0,
2687	parked => 1,
2688	prio => 0,
2689	at => $NEXT_TICK || $TICK,
2690	data => WF_AUTOCANCEL,
2691	cb => sub {
2692	if ($Coro::current != $Coro::main) {	3916	if ($Coro::current != $Coro::main) {
2693	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3917	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2694	unless ++$bug_warning > 10;	3918	unless ++$bug_warning > 10;
2695	return;	3919	return;
2696	}	3920	}
2697		3921
2698	$NOW = Event::time;
2699
2700	cf::server_tick; # one server iteration	3922	cf::server_tick; # one server iteration
2701		3923
2702	$RUNTIME += $TICK;	3924	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
2703	$NEXT_TICK += $TICK;
2704		3925
2705	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3926	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2706	$NEXT_RUNTIME_WRITE = $NOW + 10;	3927	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2707	Coro::async_pool {	3928	Coro::async_pool {
		3929	$Coro::current->{desc} = "runtime saver";
2708	write_runtime	3930	write_runtime_sync
2709	or warn "ERROR: unable to write runtime file: $!";	3931	or warn "ERROR: unable to write runtime file: $!";
2710	};
2711	}	3932	};
		3933	}
2712		3934
2713	# my $AFTER = Event::time;
2714	# warn $AFTER - $NOW;#d#
2715
2716	# if we are delayed by four ticks or more, skip them all
2717	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2718
2719	$TICK_WATCHER->at ($NEXT_TICK);
2720	$TICK_WATCHER->start;
2721
2722	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3935	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2723	$sig->send;	3936	$sig->send;
2724	}	3937	}
2725	while (my $sig = shift @WAIT_FOR_TICK) {	3938	while (my $sig = shift @WAIT_FOR_TICK) {
2726	$sig->send;	3939	$sig->send;
2727	}
2728
2729	_post_tick;
2730	},	3940	}
2731	);	3941
		3942	$LOAD = ($NOW - $TICK_START) / $TICK;
		3943	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3944
		3945	if (0) {
		3946	if ($NEXT_TICK) {
		3947	my $jitter = $TICK_START - $NEXT_TICK;
		3948	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3949	warn "jitter $JITTER\n";#d#
		3950	}
		3951	}
		3952	}
2732		3953
2733	{	3954	{
2734	BDB::max_poll_time $TICK * 0.1;	3955	# configure BDB
2735	$BDB_POLL_WATCHER = Event->io (	3956
2736	reentrant => 0,
2737	fd => BDB::poll_fileno,
2738	poll => 'r',
2739	prio => 0,
2740	data => WF_AUTOCANCEL,
2741	cb => \&BDB::poll_cb,
2742	);
2743	BDB::min_parallel 8;	3957	BDB::min_parallel 16;
2744		3958	BDB::max_poll_reqs $TICK * 0.1;
2745	BDB::set_sync_prepare {	3959	$AnyEvent::BDB::WATCHER->priority (1);
2746	my $status;
2747	my $current = $Coro::current;
2748	(
2749	sub {
2750	$status = $!;
2751	$current->ready; undef $current;
2752	},
2753	sub {
2754	Coro::schedule while defined $current;
2755	$! = $status;
2756	},
2757	)
2758	};
2759		3960
2760	unless ($DB_ENV) {	3961	unless ($DB_ENV) {
2761	$DB_ENV = BDB::db_env_create;	3962	$DB_ENV = BDB::db_env_create;
		3963	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3964	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3965	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3966	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3967	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2762		3968
2763	cf::sync_job {	3969	cf::sync_job {
2764	eval {	3970	eval {
2765	BDB::db_env_open	3971	BDB::db_env_open
2766	$DB_ENV,	3972	$DB_ENV,
2767	$BDB_ENV_DIR,	3973	$BDBDIR,
2768	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3974	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2769	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3975	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2770	0666;	3976	0666;
2771		3977
2772	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3978	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2773
2774	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2775	$DB_ENV->set_lk_detect;
2776	};	3979	};
2777		3980
2778	cf::cleanup "db_env_open(db): $@" if $@;	3981	cf::cleanup "db_env_open(db): $@" if $@;
2779	};	3982	};
2780	}	3983	}
		3984
		3985	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3986	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3987	};
		3988	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3989	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3990	};
		3991	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3992	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3993	};
2781	}	3994	}
2782		3995
2783	{	3996	{
		3997	# configure IO::AIO
		3998
2784	IO::AIO::min_parallel 8;	3999	IO::AIO::min_parallel 8;
2785
2786	undef $Coro::AIO::WATCHER;
2787	IO::AIO::max_poll_time $TICK * 0.1;	4000	IO::AIO::max_poll_time $TICK * 0.1;
2788	$AIO_POLL_WATCHER = Event->io (	4001	undef $AnyEvent::AIO::WATCHER;
2789	reentrant => 0,
2790	data => WF_AUTOCANCEL,
2791	fd => IO::AIO::poll_fileno,
2792	poll => 'r',
2793	prio => 6,
2794	cb => \&IO::AIO::poll_cb,
2795	);
2796	}	4002	}
		4003
		4004	my $_log_backtrace;
		4005
		4006	sub _log_backtrace {
		4007	my ($msg, @addr) = @_;
		4008
		4009	$msg =~ s/\n//;
		4010
		4011	# limit the # of concurrent backtraces
		4012	if ($_log_backtrace < 2) {
		4013	++$_log_backtrace;
		4014	my $perl_bt = Carp::longmess $msg;
		4015	async {
		4016	$Coro::current->{desc} = "abt $msg";
		4017
		4018	my @bt = fork_call {
		4019	@addr = map { sprintf "%x", $_ } @addr;
		4020	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4021	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4022	or die "addr2line: $!";
		4023
		4024	my @funcs;
		4025	my @res = <$fh>;
		4026	chomp for @res;
		4027	while (@res) {
		4028	my ($func, $line) = splice @res, 0, 2, ();
		4029	push @funcs, "[$func] $line";
		4030	}
		4031
		4032	@funcs
		4033	};
		4034
		4035	LOG llevInfo, "[ABT] $perl_bt\n";
		4036	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4037	LOG llevInfo, "[ABT] $_\n" for @bt;
		4038	--$_log_backtrace;
		4039	};
		4040	} else {
		4041	LOG llevInfo, "[ABT] $msg\n";
		4042	LOG llevInfo, "[ABT] [suppressed]\n";
		4043	}
		4044	}
		4045
		4046	# load additional modules
		4047	require "cf/$_.pm" for @EXTRA_MODULES;
		4048	cf::_connect_to_perl_2;
2797		4049
2798	END { cf::emergency_save }	4050	END { cf::emergency_save }
2799		4051
2800	1	4052	1
2801		4053

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