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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.239 by root, Mon Apr 16 06:23:42 2007 UTC vs.
Revision 1.507 by root, Sat Mar 20 02:24:38 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
9	use Event;	32	use EV;
10	use Opcode;	33	use Opcode;
11	use Safe;	34	use Safe;
12	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
13		38
		39	use Guard ();
14	use Coro 3.52 ();	40	use Coro ();
15	use Coro::State;	41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
16	use Coro::Event;	44	use Coro::AnyEvent;
17	use Coro::Timer;	45	use Coro::Timer;
18	use Coro::Signal;	46	use Coro::Signal;
19	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
20	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
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
58		96
59	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
60	our $TICK_WATCHER;	98	our $DATADIR = datadir;
61	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
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 $pass = 0;
		1405	my %done;
		1406	while (%todo) {
		1407	my $progress;
		1408
		1409	++$pass;
		1410
		1411	ext:
		1412	while (my ($k, $v) = each %todo) {
		1413	for (split /,\s*/, $v->{meta}{depends}) {
		1414	next ext
		1415	unless exists $done{$_};
		1416	}
		1417
		1418	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1419
		1420	my $active = eval $v->{source};
		1421
		1422	if (length $@) {
		1423	warn "$v->{path}: $@\n";
		1424
		1425	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1426	if exists $v->{meta}{mandatory};
		1427	} else {
		1428	$done{$k} = delete $todo{$k};
		1429	push @EXTS, $v->{pkg};
		1430	$progress = 1;
		1431
		1432	warn "$v->{base}: extension inactive.\n"
		1433	unless $active;
		1434	}
928	1	1435	}
929	} or warn "$ext not loaded: $@";	1436
		1437	unless ($progress) {
		1438	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1439
		1440	while (my ($k, $v) = each %todo) {
		1441	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1442	if exists $v->{meta}{mandatory};
		1443	}
		1444	}
		1445	}
930	}	1446	};
931	}	1447	}
932		1448
933	#############################################################################	1449	#############################################################################
934		1450
		1451	=back
		1452
935	=head2 CORE EXTENSIONS	1453	=head2 CORE EXTENSIONS
936		1454
937	Functions and methods that extend core crossfire objects.	1455	Functions and methods that extend core deliantra objects.
938		1456
939	=cut	1457	=cut
940		1458
941	package cf::player;	1459	package cf::player;
942		1460
…		…
944		1462
945	=head3 cf::player	1463	=head3 cf::player
946		1464
947	=over 4	1465	=over 4
948		1466
		1467	=item cf::player::num_playing
		1468
		1469	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1470
		1471	=cut
		1472
		1473	sub num_playing {
		1474	scalar grep
		1475	$_->ob->map
		1476	&& !$_->hidden
		1477	&& !$_->ob->flag (cf::FLAG_WIZ),
		1478	cf::player::list
		1479	}
		1480
949	=item cf::player::find $login	1481	=item cf::player::find $login
950		1482
951	Returns the given player object, loading it if necessary (might block).	1483	Returns the given player object, loading it if necessary (might block).
952		1484
953	=cut	1485	=cut
954		1486
955	sub playerdir($) {	1487	sub playerdir($) {
956	cf::localdir	1488	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1489	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1490	}
962		1491
963	sub path($) {	1492	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1493	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
974		1503
975	sub exists($) {	1504	sub exists($) {
976	my ($login) = @_;	1505	my ($login) = @_;
977		1506
978	$cf::PLAYER{$login}	1507	$cf::PLAYER{$login}
979	or cf::sync_job { !aio_stat path $login }	1508	or !aio_stat path $login
980	}	1509	}
981		1510
982	sub find($) {	1511	sub find($) {
983	return $cf::PLAYER{$_[0]} || do {	1512	return $cf::PLAYER{$_[0]} || do {
984	my $login = $_[0];	1513	my $login = $_[0];
…		…
991	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1520	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
992	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1521	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
993	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1522	aio_unlink +(playerdir $login) . "/$login.pl.pst";
994	aio_unlink +(playerdir $login) . "/$login.pl";	1523	aio_unlink +(playerdir $login) . "/$login.pl";
995		1524
996	my $pl = load_pl path $login	1525	my $f = new_from_file cf::object::thawer path $login
997	or return;	1526	or return;
		1527
		1528	my $pl = cf::player::load_pl $f
		1529	or return;
		1530
		1531	local $cf::PLAYER_LOADING{$login} = $pl;
		1532	$f->resolve_delayed_derefs;
998	$cf::PLAYER{$login} = $pl	1533	$cf::PLAYER{$login} = $pl
999	}	1534	}
1000	}	1535	}
1001	}	1536	}
1002		1537
…		…
1011	return if $pl->{deny_save};	1546	return if $pl->{deny_save};
1012		1547
1013	aio_mkdir playerdir $pl, 0770;	1548	aio_mkdir playerdir $pl, 0770;
1014	$pl->{last_save} = $cf::RUNTIME;	1549	$pl->{last_save} = $cf::RUNTIME;
1015		1550
		1551	cf::get_slot 0.01;
		1552
1016	$pl->save_pl ($path);	1553	$pl->save_pl ($path);
1017	Coro::cede;	1554	cf::cede_to_tick;
1018	}	1555	}
1019		1556
1020	sub new($) {	1557	sub new($) {
1021	my ($login) = @_;	1558	my ($login) = @_;
1022		1559
…		…
1028	$cf::PLAYER{$login} = $self;	1565	$cf::PLAYER{$login} = $self;
1029		1566
1030	$self	1567	$self
1031	}	1568	}
1032		1569
		1570	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1571
		1572	=cut
		1573
		1574	sub send_msg {
		1575	my $ns = shift->ns
		1576	or return;
		1577	$ns->send_msg (@_);
		1578	}
		1579
1033	=item $pl->quit_character	1580	=item $pl->quit_character
1034		1581
1035	Nukes the player without looking back. If logged in, the connection will	1582	Nukes the player without looking back. If logged in, the connection will
1036	be destroyed. May block for a long time.	1583	be destroyed. May block for a long time.
1037		1584
…		…
1041	my ($pl) = @_;	1588	my ($pl) = @_;
1042		1589
1043	my $name = $pl->ob->name;	1590	my $name = $pl->ob->name;
1044		1591
1045	$pl->{deny_save} = 1;	1592	$pl->{deny_save} = 1;
1046	$pl->password ("*"); # this should lock out the player until we nuked the dir	1593	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1047		1594
1048	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1595	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1049	$pl->deactivate;	1596	$pl->deactivate;
		1597	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1598	$pl->ob->check_score;
1050	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1599	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1051	$pl->ns->destroy if $pl->ns;	1600	$pl->ns->destroy if $pl->ns;
1052		1601
1053	my $path = playerdir $pl;	1602	my $path = playerdir $pl;
1054	my $temp = "$path~$cf::RUNTIME~deleting~";	1603	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1084	while and may block, so not sync_job-capable, ever.	1633	while and may block, so not sync_job-capable, ever.
1085		1634
1086	=cut	1635	=cut
1087		1636
1088	sub list_logins {	1637	sub list_logins {
1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1638	my $dirs = aio_readdir $PLAYERDIR
1090	or return [];	1639	or return [];
1091		1640
1092	my @logins;	1641	my @logins;
1093		1642
1094	for my $login (@$dirs) {	1643	for my $login (@$dirs) {
		1644	my $path = path $login;
		1645
		1646	# a .pst is a dead give-away for a valid player
		1647	# if no pst file found, open and chekc for blocked users
		1648	if (aio_stat "$path.pst") {
1095	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1649	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1096	aio_read $fh, 0, 512, my $buf, 0 or next;	1650	aio_read $fh, 0, 512, my $buf, 0 or next;
1097	$buf !~ /^password -------------$/m or next; # official not-valid tag	1651	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1652	}
1098		1653
1099	utf8::decode $login;	1654	utf8::decode $login;
1100	push @logins, $login;	1655	push @logins, $login;
1101	}	1656	}
1102		1657
…		…
1129	}	1684	}
1130		1685
1131	\@paths	1686	\@paths
1132	}	1687	}
1133		1688
		1689	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1690
		1691	Expand deliantra pod fragments into protocol xml.
		1692
1134	=item $player->ext_reply ($msgid, %msg)	1693	=item $player->ext_reply ($msgid, @msg)
1135		1694
1136	Sends an ext reply to the player.	1695	Sends an ext reply to the player.
1137		1696
1138	=cut	1697	=cut
1139		1698
1140	sub ext_reply($$%) {	1699	sub ext_reply($$@) {
1141	my ($self, $id, %msg) = @_;	1700	my ($self, $id, @msg) = @_;
1142		1701
1143	$msg{msgid} = $id;	1702	$self->ns->ext_reply ($id, @msg)
1144
1145	$self->send ("ext " . cf::to_json \%msg);
1146	}	1703	}
1147		1704
1148	=item $player->ext_event ($type, %msg)	1705	=item $player->ext_msg ($type, @msg)
1149		1706
1150	Sends an ext event to the client.	1707	Sends an ext event to the client.
1151		1708
1152	=cut	1709	=cut
1153		1710
1154	sub ext_event($$%) {	1711	sub ext_msg($$@) {
1155	my ($self, $type, %msg) = @_;	1712	my ($self, $type, @msg) = @_;
1156		1713
1157	$self->ns->ext_event ($type, %msg);	1714	$self->ns->ext_msg ($type, @msg);
1158	}	1715	}
1159		1716
1160	=head3 cf::region	1717	=head3 cf::region
1161		1718
1162	=over 4	1719	=over 4
…		…
1165		1722
1166	package cf::region;	1723	package cf::region;
1167		1724
1168	=item cf::region::find_by_path $path	1725	=item cf::region::find_by_path $path
1169		1726
1170	Tries to decuce the probable region for a map knowing only its path.	1727	Tries to decuce the likely region for a map knowing only its path.
1171		1728
1172	=cut	1729	=cut
1173		1730
1174	sub find_by_path($) {	1731	sub find_by_path($) {
1175	my ($path) = @_;	1732	my ($path) = @_;
1176		1733
1177	my ($match, $specificity);	1734	my ($match, $specificity);
1178		1735
1179	for my $region (list) {	1736	for my $region (list) {
1180	if ($region->match && $path =~ $region->match) {	1737	if ($region->{match} && $path =~ $region->{match}) {
1181	($match, $specificity) = ($region, $region->specificity)	1738	($match, $specificity) = ($region, $region->specificity)
1182	if $region->specificity > $specificity;	1739	if $region->specificity > $specificity;
1183	}	1740	}
1184	}	1741	}
1185		1742
…		…
1206	our $MAX_RESET = 3600;	1763	our $MAX_RESET = 3600;
1207	our $DEFAULT_RESET = 3000;	1764	our $DEFAULT_RESET = 3000;
1208		1765
1209	sub generate_random_map {	1766	sub generate_random_map {
1210	my ($self, $rmp) = @_;	1767	my ($self, $rmp) = @_;
		1768
		1769	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1770
1211	# mit "rum" bekleckern, nicht	1771	# mit "rum" bekleckern, nicht
1212	$self->_create_random_map (	1772	$self->_create_random_map (
1213	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1773	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1214	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1774	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1215	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1775	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1249	my ($self, $merge) = @_;	1809	my ($self, $merge) = @_;
1250		1810
1251	# we have to keep some variables in memory intact	1811	# we have to keep some variables in memory intact
1252	local $self->{path};	1812	local $self->{path};
1253	local $self->{load_path};	1813	local $self->{load_path};
1254	local $self->{deny_save};
1255	local $self->{deny_reset};
1256		1814
1257	$self->SUPER::thawer_merge ($merge);	1815	$self->SUPER::thawer_merge ($merge);
1258	}	1816	}
1259		1817
1260	sub normalise {	1818	sub normalise {
…		…
1307	$self->init; # pass $1 etc.	1865	$self->init; # pass $1 etc.
1308	return $self;	1866	return $self;
1309	}	1867	}
1310	}	1868	}
1311		1869
1312	Carp::carp "unable to resolve path '$path' (base '$base').";	1870	Carp::cluck "unable to resolve path '$path' (base '$base').";
1313	()	1871	()
1314	}	1872	}
1315		1873
1316	sub init {	1874	sub init {
1317	my ($self) = @_;	1875	my ($self) = @_;
…		…
1332		1890
1333	# the original (read-only) location	1891	# the original (read-only) location
1334	sub load_path {	1892	sub load_path {
1335	my ($self) = @_;	1893	my ($self) = @_;
1336		1894
1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1895	"$MAPDIR/$self->{path}.map"
1338	}	1896	}
1339		1897
1340	# the temporary/swap location	1898	# the temporary/swap location
1341	sub save_path {	1899	sub save_path {
1342	my ($self) = @_;	1900	my ($self) = @_;
1343		1901
1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1902	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1903	"$TMPDIR/$path.map"
1346	}	1904	}
1347		1905
1348	# the unique path, undef == no special unique path	1906	# the unique path, undef == no special unique path
1349	sub uniq_path {	1907	sub uniq_path {
1350	my ($self) = @_;	1908	my ($self) = @_;
1351		1909
1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1910	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1911	"$UNIQUEDIR/$path"
1354	}	1912	}
1355		1913
1356	# and all this just because we cannot iterate over	1914	sub decay_objects {
1357	# all maps in C++...
1358	sub change_all_map_light {
1359	my ($change) = @_;	1915	my ($self) = @_;
1360		1916
1361	$_->change_map_light ($change)	1917	return if $self->{deny_reset};
1362	for grep $_->outdoor, values %cf::MAP;	1918
		1919	$self->do_decay_objects;
1363	}	1920	}
1364		1921
1365	sub unlink_save {	1922	sub unlink_save {
1366	my ($self) = @_;	1923	my ($self) = @_;
1367		1924
…		…
1372		1929
1373	sub load_header_from($) {	1930	sub load_header_from($) {
1374	my ($self, $path) = @_;	1931	my ($self, $path) = @_;
1375		1932
1376	utf8::encode $path;	1933	utf8::encode $path;
1377	#aio_open $path, O_RDONLY, 0	1934	my $f = new_from_file cf::object::thawer $path
1378	# or return;
1379
1380	$self->_load_header ($path)
1381	or return;	1935	or return;
		1936
		1937	$self->_load_header ($f)
		1938	or return;
		1939
		1940	local $MAP_LOADING{$self->{path}} = $self;
		1941	$f->resolve_delayed_derefs;
1382		1942
1383	$self->{load_path} = $path;	1943	$self->{load_path} = $path;
1384		1944
1385	1	1945	1
1386	}	1946	}
…		…
1425	$self->load_header_orig	1985	$self->load_header_orig
1426	or return;	1986	or return;
1427	$self->prepare_orig;	1987	$self->prepare_orig;
1428	}	1988	}
1429		1989
		1990	$self->{deny_reset} = 1
		1991	if $self->no_reset;
		1992
1430	$self->default_region (cf::region::find_by_path $self->{path})	1993	$self->default_region (cf::region::find_by_path $self->{path})
1431	unless $self->default_region;	1994	unless $self->default_region;
1432		1995
1433	1	1996	1
1434	}	1997	}
…		…
1437	sub find {	2000	sub find {
1438	my ($path, $origin) = @_;	2001	my ($path, $origin) = @_;
1439		2002
1440	$path = normalise $path, $origin && $origin->path;	2003	$path = normalise $path, $origin && $origin->path;
1441		2004
		2005	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1442	cf::lock_wait "map_find:$path";	2006	my $guard2 = cf::lock_acquire "map_find:$path";
1443		2007
1444	$cf::MAP{$path} || do {	2008	$cf::MAP{$path} || do {
1445	my $guard = cf::lock_acquire "map_find:$path";
1446	my $map = new_from_path cf::map $path	2009	my $map = new_from_path cf::map $path
1447	or return;	2010	or return;
1448		2011
1449	$map->{last_save} = $cf::RUNTIME;	2012	$map->{last_save} = $cf::RUNTIME;
1450		2013
1451	$map->load_header	2014	$map->load_header
1452	or return;	2015	or return;
1453		2016
1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2017	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1455	# doing this can freeze the server in a sync job, obviously	2018	# doing this can freeze the server in a sync job, obviously
1456	#$cf::WAIT_FOR_TICK->wait;	2019	#$cf::WAIT_FOR_TICK->wait;
		2020	undef $guard2;
		2021	undef $guard1;
1457	$map->reset;	2022	$map->reset;
1458	undef $guard;
1459	return find $path;	2023	return find $path;
1460	}	2024	}
1461		2025
1462	$cf::MAP{$path} = $map	2026	$cf::MAP{$path} = $map
1463	}	2027	}
1464	}	2028	}
1465		2029
1466	sub pre_load { }	2030	sub pre_load { }
1467	sub post_load { }	2031	#sub post_load { } # XS
1468		2032
1469	sub load {	2033	sub load {
1470	my ($self) = @_;	2034	my ($self) = @_;
1471		2035
1472	local $self->{deny_reset} = 1; # loading can take a long time	2036	local $self->{deny_reset} = 1; # loading can take a long time
1473		2037
1474	my $path = $self->{path};	2038	my $path = $self->{path};
		2039
		2040	{
1475	my $guard = cf::lock_acquire "map_load:$path";	2041	my $guard = cf::lock_acquire "map_data:$path";
1476		2042
		2043	return unless $self->valid;
1477	return if $self->in_memory != cf::MAP_SWAPPED;	2044	return unless $self->in_memory == cf::MAP_SWAPPED;
1478		2045
1479	$self->in_memory (cf::MAP_LOADING);	2046	$self->in_memory (cf::MAP_LOADING);
1480		2047
1481	$self->alloc;	2048	$self->alloc;
1482		2049
1483	$self->pre_load;	2050	$self->pre_load;
1484	Coro::cede;	2051	cf::cede_to_tick;
1485		2052
1486	$self->_load_objects ($self->{load_path}, 1)	2053	my $f = new_from_file cf::object::thawer $self->{load_path};
		2054	$f->skip_block;
		2055	$self->_load_objects ($f)
1487	or return;	2056	or return;
1488		2057
1489	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2058	$self->post_load_original
1490	if delete $self->{load_original};	2059	if delete $self->{load_original};
1491		2060
1492	if (my $uniq = $self->uniq_path) {	2061	if (my $uniq = $self->uniq_path) {
1493	utf8::encode $uniq;	2062	utf8::encode $uniq;
1494	if (aio_open $uniq, O_RDONLY, 0) {	2063	unless (aio_stat $uniq) {
		2064	if (my $f = new_from_file cf::object::thawer $uniq) {
1495	$self->clear_unique_items;	2065	$self->clear_unique_items;
1496	$self->_load_objects ($uniq, 0);	2066	$self->_load_objects ($f);
		2067	$f->resolve_delayed_derefs;
		2068	}
1497	}	2069	}
1498	}	2070	}
1499		2071
1500	Coro::cede;	2072	$f->resolve_delayed_derefs;
		2073
		2074	cf::cede_to_tick;
1501	# now do the right thing for maps	2075	# now do the right thing for maps
1502	$self->link_multipart_objects;	2076	$self->link_multipart_objects;
1503	Coro::cede;
1504
1505	unless ($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)	2077	$self->difficulty ($self->estimate_difficulty)
1512	unless $self->difficulty;	2078	unless $self->difficulty;
1513	Coro::cede;	2079	cf::cede_to_tick;
		2080
		2081	unless ($self->{deny_activate}) {
		2082	$self->decay_objects;
		2083	$self->fix_auto_apply;
		2084	$self->update_buttons;
		2085	cf::cede_to_tick;
1514	$self->activate;	2086	$self->activate;
1515	Coro::cede;	2087	}
		2088
		2089	$self->{last_save} = $cf::RUNTIME;
		2090	$self->last_access ($cf::RUNTIME);
		2091
		2092	$self->in_memory (cf::MAP_ACTIVE);
1516	}	2093	}
1517		2094
1518	$self->post_load;	2095	$self->post_load;
1519	Coro::cede;
1520
1521	$self->in_memory (cf::MAP_IN_MEMORY);
1522	}	2096	}
1523		2097
		2098	# customize the map for a given player, i.e.
		2099	# return the _real_ map. used by e.g. per-player
		2100	# maps to change the path to ~playername/mappath
1524	sub customise_for {	2101	sub customise_for {
1525	my ($self, $ob) = @_;	2102	my ($self, $ob) = @_;
1526		2103
1527	return find "~" . $ob->name . "/" . $self->{path}	2104	return find "~" . $ob->name . "/" . $self->{path}
1528	if $self->per_player;	2105	if $self->per_player;
1529		2106
		2107	# return find "?party/" . $ob->name . "/" . $self->{path}
		2108	# if $self->per_party;
		2109
1530	$self	2110	$self
1531	}	2111	}
1532		2112
1533	# find and load all maps in the 3x3 area around a map	2113	# find and load all maps in the 3x3 area around a map
1534	sub load_diag {	2114	sub load_neighbours {
1535	my ($map) = @_;	2115	my ($map) = @_;
1536		2116
1537	my @diag; # diagonal neighbours	2117	my @neigh; # diagonal neighbours
1538		2118
1539	for (0 .. 3) {	2119	for (0 .. 3) {
1540	my $neigh = $map->tile_path ($_)	2120	my $neigh = $map->tile_path ($_)
1541	or next;	2121	or next;
1542	$neigh = find $neigh, $map	2122	$neigh = find $neigh, $map
1543	or next;	2123	or next;
1544	$neigh->load;	2124	$neigh->load;
1545		2125
		2126	push @neigh,
1546	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2127	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1547	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2128	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1548	}	2129	}
1549		2130
1550	for (@diag) {	2131	for (grep defined $_->[0], @neigh) {
		2132	my ($path, $origin) = @$_;
1551	my $neigh = find @$_	2133	my $neigh = find $path, $origin
1552	or next;	2134	or next;
1553	$neigh->load;	2135	$neigh->load;
1554	}	2136	}
1555	}	2137	}
1556		2138
…		…
1561	}	2143	}
1562		2144
1563	sub do_load_sync {	2145	sub do_load_sync {
1564	my ($map) = @_;	2146	my ($map) = @_;
1565		2147
		2148	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2149	if $Coro::current == $Coro::main;
		2150
1566	cf::sync_job { $map->load };	2151	cf::sync_job { $map->load };
1567	}	2152	}
1568		2153
1569	our %MAP_PREFETCH;	2154	our %MAP_PREFETCH;
1570	our $MAP_PREFETCHER = undef;	2155	our $MAP_PREFETCHER = undef;
1571		2156
1572	sub find_async {	2157	sub find_async {
1573	my ($path, $origin) = @_;	2158	my ($path, $origin, $load) = @_;
1574		2159
1575	$path = normalise $path, $origin && $origin->{path};	2160	$path = normalise $path, $origin && $origin->{path};
1576		2161
1577	if (my $map = $cf::MAP{$path}) {	2162	if (my $map = $cf::MAP{$path}) {
1578	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2163	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1579	}	2164	}
1580		2165
1581	undef $MAP_PREFETCH{$path};	2166	$MAP_PREFETCH{$path} |= $load;
		2167
1582	$MAP_PREFETCHER ||= cf::async {	2168	$MAP_PREFETCHER ||= cf::async {
		2169	$Coro::current->{desc} = "map prefetcher";
		2170
1583	while (%MAP_PREFETCH) {	2171	while (%MAP_PREFETCH) {
1584	for my $path (keys %MAP_PREFETCH) {	2172	while (my ($k, $v) = each %MAP_PREFETCH) {
1585	my $map = find $path	2173	if (my $map = find $k) {
1586	or next;
1587	$map->load;	2174	$map->load if $v;
		2175	}
1588		2176
1589	delete $MAP_PREFETCH{$path};	2177	delete $MAP_PREFETCH{$k};
1590	}	2178	}
1591	}	2179	}
1592	undef $MAP_PREFETCHER;	2180	undef $MAP_PREFETCHER;
1593	};	2181	};
1594	$MAP_PREFETCHER->prio (6);	2182	$MAP_PREFETCHER->prio (6);
…		…
1597	}	2185	}
1598		2186
1599	sub save {	2187	sub save {
1600	my ($self) = @_;	2188	my ($self) = @_;
1601		2189
1602	my $lock = cf::lock_acquire "map_data:" . $self->path;	2190	my $lock = cf::lock_acquire "map_data:$self->{path}";
1603		2191
1604	$self->{last_save} = $cf::RUNTIME;	2192	$self->{last_save} = $cf::RUNTIME;
1605		2193
1606	return unless $self->dirty;	2194	return unless $self->dirty;
1607		2195
…		…
1613	return if $self->{deny_save};	2201	return if $self->{deny_save};
1614		2202
1615	local $self->{last_access} = $self->last_access;#d#	2203	local $self->{last_access} = $self->last_access;#d#
1616		2204
1617	cf::async {	2205	cf::async {
		2206	$Coro::current->{desc} = "map player save";
1618	$_->contr->save for $self->players;	2207	$_->contr->save for $self->players;
1619	};	2208	};
		2209
		2210	cf::get_slot 0.02;
1620		2211
1621	if ($uniq) {	2212	if ($uniq) {
1622	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2213	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1623	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2214	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1624	} else {	2215	} else {
…		…
1630	my ($self) = @_;	2221	my ($self) = @_;
1631		2222
1632	# save first because save cedes	2223	# save first because save cedes
1633	$self->save;	2224	$self->save;
1634		2225
1635	my $lock = cf::lock_acquire "map_data:" . $self->path;	2226	my $lock = cf::lock_acquire "map_data:$self->{path}";
1636		2227
1637	return if $self->players;	2228	return if $self->players;
1638	return if $self->in_memory != cf::MAP_IN_MEMORY;	2229	return if $self->in_memory != cf::MAP_ACTIVE;
1639	return if $self->{deny_save};	2230	return if $self->{deny_save};
1640		2231
		2232	$self->in_memory (cf::MAP_SWAPPED);
		2233
		2234	$self->deactivate;
		2235	$_->clear_links_to ($self) for values %cf::MAP;
1641	$self->clear;	2236	$self->clear;
1642	$self->in_memory (cf::MAP_SWAPPED);
1643	}	2237	}
1644		2238
1645	sub reset_at {	2239	sub reset_at {
1646	my ($self) = @_;	2240	my ($self) = @_;
1647		2241
1648	# TODO: safety, remove and allow resettable per-player maps	2242	# 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};	2243	return 1e99 if $self->{deny_reset};
1651		2244
1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2245	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2246	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1654		2247
…		…
1665	my ($self) = @_;	2258	my ($self) = @_;
1666		2259
1667	my $lock = cf::lock_acquire "map_data:$self->{path}";	2260	my $lock = cf::lock_acquire "map_data:$self->{path}";
1668		2261
1669	return if $self->players;	2262	return if $self->players;
1670	return if $self->isa ("ext::map_per_player");#d#
1671		2263
1672	warn "resetting map ", $self->path;#d#	2264	warn "resetting map ", $self->path, "\n";
1673		2265
1674	$self->in_memory (cf::MAP_SWAPPED);	2266	$self->in_memory (cf::MAP_SWAPPED);
1675		2267
1676	# need to save uniques path	2268	# need to save uniques path
1677	unless ($self->{deny_save}) {	2269	unless ($self->{deny_save}) {
…		…
1681	if $uniq;	2273	if $uniq;
1682	}	2274	}
1683		2275
1684	delete $cf::MAP{$self->path};	2276	delete $cf::MAP{$self->path};
1685		2277
		2278	$self->deactivate;
		2279	$_->clear_links_to ($self) for values %cf::MAP;
1686	$self->clear;	2280	$self->clear;
1687
1688	$_->clear_links_to ($self) for values %cf::MAP;
1689		2281
1690	$self->unlink_save;	2282	$self->unlink_save;
1691	$self->destroy;	2283	$self->destroy;
1692	}	2284	}
1693		2285
1694	my $nuke_counter = "aaaa";	2286	my $nuke_counter = "aaaa";
1695		2287
1696	sub nuke {	2288	sub nuke {
1697	my ($self) = @_;	2289	my ($self) = @_;
1698		2290
		2291	{
		2292	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2293
1699	delete $cf::MAP{$self->path};	2294	delete $cf::MAP{$self->path};
1700		2295
1701	$self->unlink_save;	2296	$self->unlink_save;
1702		2297
1703	bless $self, "cf::map";	2298	bless $self, "cf::map";
1704	delete $self->{deny_reset};	2299	delete $self->{deny_reset};
1705	$self->{deny_save} = 1;	2300	$self->{deny_save} = 1;
1706	$self->reset_timeout (1);	2301	$self->reset_timeout (1);
1707	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2302	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1708		2303
1709	$cf::MAP{$self->path} = $self;	2304	$cf::MAP{$self->path} = $self;
		2305	}
1710		2306
1711	$self->reset; # polite request, might not happen	2307	$self->reset; # polite request, might not happen
		2308	}
		2309
		2310	=item $maps = cf::map::tmp_maps
		2311
		2312	Returns an arrayref with all map paths of currently instantiated and saved
		2313	maps. May block.
		2314
		2315	=cut
		2316
		2317	sub tmp_maps() {
		2318	[
		2319	map {
		2320	utf8::decode $_;
		2321	/\.map$/
		2322	? normalise $_
		2323	: ()
		2324	} @{ aio_readdir $TMPDIR or [] }
		2325	]
		2326	}
		2327
		2328	=item $maps = cf::map::random_maps
		2329
		2330	Returns an arrayref with all map paths of currently instantiated and saved
		2331	random maps. May block.
		2332
		2333	=cut
		2334
		2335	sub random_maps() {
		2336	[
		2337	map {
		2338	utf8::decode $_;
		2339	/\.map$/
		2340	? normalise "?random/$_"
		2341	: ()
		2342	} @{ aio_readdir $RANDOMDIR or [] }
		2343	]
1712	}	2344	}
1713		2345
1714	=item cf::map::unique_maps	2346	=item cf::map::unique_maps
1715		2347
1716	Returns an arrayref of paths of all shared maps that have	2348	Returns an arrayref of paths of all shared maps that have
1717	instantiated unique items. May block.	2349	instantiated unique items. May block.
1718		2350
1719	=cut	2351	=cut
1720		2352
1721	sub unique_maps() {	2353	sub unique_maps() {
1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2354	[
1723	or return;	2355	map {
1724
1725	my @paths;
1726
1727	for (@$files) {
1728	utf8::decode $_;	2356	utf8::decode $_;
1729	next if /\.pst$/;	2357	s/\.map$//; # TODO future compatibility hack
1730	next unless /^$PATH_SEP/o;	2358	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1731		2359	? ()
1732	push @paths, cf::map::normalise $_;	2360	: normalise $_
		2361	} @{ aio_readdir $UNIQUEDIR or [] }
1733	}	2362	]
1734
1735	\@paths
1736	}	2363	}
1737		2364
1738	package cf;	2365	=item cf::map::static_maps
		2366
		2367	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2368	file in the shared directory excluding F</styles> and F</editor>). May
		2369	block.
		2370
		2371	=cut
		2372
		2373	sub static_maps() {
		2374	my @dirs = "";
		2375	my @maps;
		2376
		2377	while (@dirs) {
		2378	my $dir = shift @dirs;
		2379
		2380	next if $dir eq "/styles" || $dir eq "/editor";
		2381
		2382	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2383	or return;
		2384
		2385	for (@$files) {
		2386	s/\.map$// or next;
		2387	utf8::decode $_;
		2388	push @maps, "$dir/$_";
		2389	}
		2390
		2391	push @dirs, map "$dir/$_", @$dirs;
		2392	}
		2393
		2394	\@maps
		2395	}
1739		2396
1740	=back	2397	=back
1741		2398
1742	=head3 cf::object	2399	=head3 cf::object
1743		2400
…		…
1747		2404
1748	=over 4	2405	=over 4
1749		2406
1750	=item $ob->inv_recursive	2407	=item $ob->inv_recursive
1751		2408
1752	Returns the inventory of the object _and_ their inventories, recursively.	2409	Returns the inventory of the object I<and> their inventories, recursively,
		2410	but I<not> the object itself.
1753		2411
1754	=cut	2412	=cut
1755		2413
1756	sub inv_recursive_;	2414	sub inv_recursive_;
1757	sub inv_recursive_ {	2415	sub inv_recursive_ {
…		…
1760		2418
1761	sub inv_recursive {	2419	sub inv_recursive {
1762	inv_recursive_ inv $_[0]	2420	inv_recursive_ inv $_[0]
1763	}	2421	}
1764		2422
		2423	=item $ref = $ob->ref
		2424
		2425	Creates and returns a persistent reference to an object that can be stored as a string.
		2426
		2427	=item $ob = cf::object::deref ($refstring)
		2428
		2429	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2430	even if the object actually exists. May block.
		2431
		2432	=cut
		2433
		2434	sub deref {
		2435	my ($ref) = @_;
		2436
		2437	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2438	my ($uuid, $name) = ($1, $2);
		2439	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2440	or return;
		2441	$pl->ob->uuid eq $uuid
		2442	or return;
		2443
		2444	$pl->ob
		2445	} else {
		2446	warn "$ref: cannot resolve object reference\n";
		2447	undef
		2448	}
		2449	}
		2450
1765	package cf;	2451	package cf;
1766		2452
1767	=back	2453	=back
1768		2454
1769	=head3 cf::object::player	2455	=head3 cf::object::player
…		…
1775	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2461	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	2462	can be C<undef>. Does the right thing when the player is currently in a
1777	dialogue with the given NPC character.	2463	dialogue with the given NPC character.
1778		2464
1779	=cut	2465	=cut
		2466
		2467	our $SAY_CHANNEL = {
		2468	id => "say",
		2469	title => "Map",
		2470	reply => "say ",
		2471	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2472	};
		2473
		2474	our $CHAT_CHANNEL = {
		2475	id => "chat",
		2476	title => "Chat",
		2477	reply => "chat ",
		2478	tooltip => "Player chat and shouts, global to the server.",
		2479	};
1780		2480
1781	# rough implementation of a future "reply" method that works	2481	# rough implementation of a future "reply" method that works
1782	# with dialog boxes.	2482	# with dialog boxes.
1783	#TODO: the first argument must go, split into a $npc->reply_to ( method	2483	#TODO: the first argument must go, split into a $npc->reply_to ( method
1784	sub cf::object::player::reply($$$;$) {	2484	sub cf::object::player::reply($$$;$) {
…		…
1786		2486
1787	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2487	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1788		2488
1789	if ($self->{record_replies}) {	2489	if ($self->{record_replies}) {
1790	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2490	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2491
1791	} else {	2492	} else {
		2493	my $pl = $self->contr;
		2494
		2495	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2496	my $dialog = $pl->{npc_dialog};
		2497	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2498
		2499	} else {
1792	$msg = $npc->name . " says: $msg" if $npc;	2500	$msg = $npc->name . " says: $msg" if $npc;
1793	$self->message ($msg, $flags);	2501	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2502	}
1794	}	2503	}
		2504	}
		2505
		2506	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2507
		2508	=cut
		2509
		2510	sub cf::object::send_msg {
		2511	my $pl = shift->contr
		2512	or return;
		2513	$pl->send_msg (@_);
1795	}	2514	}
1796		2515
1797	=item $player_object->may ("access")	2516	=item $player_object->may ("access")
1798		2517
1799	Returns wether the given player is authorized to access resource "access"	2518	Returns wether the given player is authorized to access resource "access"
…		…
1812		2531
1813	=item $player_object->enter_link	2532	=item $player_object->enter_link
1814		2533
1815	Freezes the player and moves him/her to a special map (C<{link}>).	2534	Freezes the player and moves him/her to a special map (C<{link}>).
1816		2535
1817	The player should be reasonably safe there for short amounts of time. You	2536	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.	2537	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2538	though, as the palyer cannot control the character while it is on the link
		2539	map.
1819		2540
1820	Will never block.	2541	Will never block.
1821		2542
1822	=item $player_object->leave_link ($map, $x, $y)	2543	=item $player_object->leave_link ($map, $x, $y)
1823		2544
…		…
1846	$self->deactivate_recursive;	2567	$self->deactivate_recursive;
1847		2568
1848	return if UNIVERSAL::isa $self->map, "ext::map_link";	2569	return if UNIVERSAL::isa $self->map, "ext::map_link";
1849		2570
1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2571	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1851	if $self->map;	2572	if $self->map && $self->map->{path} ne "{link}";
1852		2573
1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2574	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1854	}	2575	}
1855		2576
1856	sub cf::object::player::leave_link {	2577	sub cf::object::player::leave_link {
1857	my ($self, $map, $x, $y) = @_;	2578	my ($self, $map, $x, $y) = @_;
		2579
		2580	return unless $self->contr->active;
1858		2581
1859	my $link_pos = delete $self->{_link_pos};	2582	my $link_pos = delete $self->{_link_pos};
1860		2583
1861	unless ($map) {	2584	unless ($map) {
1862	# restore original map position	2585	# restore original map position
…		…
1873	($x, $y) = (-1, -1)	2596	($x, $y) = (-1, -1)
1874	unless (defined $x) && (defined $y);	2597	unless (defined $x) && (defined $y);
1875		2598
1876	# use -1 or undef as default coordinates, not 0, 0	2599	# use -1 or undef as default coordinates, not 0, 0
1877	($x, $y) = ($map->enter_x, $map->enter_y)	2600	($x, $y) = ($map->enter_x, $map->enter_y)
1878	if $x <=0 && $y <= 0;	2601	if $x <= 0 && $y <= 0;
1879		2602
1880	$map->load;	2603	$map->load;
1881	$map->load_diag;	2604	$map->load_neighbours;
1882		2605
1883	return unless $self->contr->active;	2606	return unless $self->contr->active;
1884	$self->activate_recursive;
1885		2607
1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2608	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1887	$self->enter_map ($map, $x, $y);	2609	$self->enter_map ($map, $x, $y);
1888	}
1889		2610
1890	cf::player->attach (	2611	# only activate afterwards, to support waiting in hooks
1891	on_logout => sub {	2612	$self->activate_recursive;
1892	my ($pl) = @_;	2613	}
1893		2614
1894	# abort map switching before logout	2615	=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		2616
1904	# try to abort aborted map switching on player login :)	2617	Moves the player to the given map-path and coordinates by first freezing
1905	# should happen only on crashes	2618	her, loading and preparing them map, calling the provided $check callback
1906	if ($pl->ob->{_link_pos}) {	2619	that has to return the map if sucecssful, and then unfreezes the player on
1907	$pl->ob->enter_link;	2620	the new (success) or old (failed) map position. In either case, $done will
1908	(async {	2621	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		2622
1922	=item $player_object->goto ($path, $x, $y)	2623	Note that $check will be called with a potentially non-loaded map, so if
		2624	it needs a loaded map it has to call C<< ->load >>.
1923		2625
1924	=cut	2626	=cut
		2627
		2628	our $GOTOGEN;
1925		2629
1926	sub cf::object::player::goto {	2630	sub cf::object::player::goto {
1927	my ($self, $path, $x, $y) = @_;	2631	my ($self, $path, $x, $y, $check, $done) = @_;
		2632
		2633	# do generation counting so two concurrent goto's will be executed in-order
		2634	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1928		2635
1929	$self->enter_link;	2636	$self->enter_link;
1930		2637
1931	(async {	2638	(async {
		2639	$Coro::current->{desc} = "player::goto $path $x $y";
		2640
		2641	# *tag paths override both path and x|y
		2642	if ($path =~ /^\*(.*)$/) {
		2643	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2644	my $ob = $obs[rand @obs];
		2645
		2646	# see if we actually can go there
		2647	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2648	$ob = $obs[rand @obs];
		2649	} else {
		2650	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2651	}
		2652	# else put us there anyways for now #d#
		2653
		2654	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2655	} else {
		2656	($path, $x, $y) = (undef, undef, undef);
		2657	}
		2658	}
		2659
1932	my $map = eval {	2660	my $map = eval {
1933	my $map = cf::map::find $path;	2661	my $map = defined $path ? cf::map::find $path : undef;
		2662
		2663	if ($map) {
1934	$map = $map->customise_for ($self) if $map;	2664	$map = $map->customise_for ($self);
		2665	$map = $check->($map) if $check && $map;
		2666	} else {
		2667	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2668	}
		2669
1935	$map	2670	$map
		2671	};
		2672
		2673	if ($@) {
		2674	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2675	LOG llevError | logBacktrace, Carp::longmess $@;
1936	} or	2676	}
1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1938		2677
		2678	if ($gen == $self->{_goto_generation}) {
		2679	delete $self->{_goto_generation};
1939	$self->leave_link ($map, $x, $y);	2680	$self->leave_link ($map, $x, $y);
		2681	}
		2682
		2683	$done->() if $done;
1940	})->prio (1);	2684	})->prio (1);
1941	}	2685	}
1942		2686
1943	=item $player_object->enter_exit ($exit_object)	2687	=item $player_object->enter_exit ($exit_object)
1944		2688
…		…
1964	}	2708	}
1965		2709
1966	sub prepare_random_map {	2710	sub prepare_random_map {
1967	my ($exit) = @_;	2711	my ($exit) = @_;
1968		2712
1969	my $guard = cf::lock_acquire "exit_prepare:$exit";
1970
1971	# all this does is basically replace the /! path by	2713	# all this does is basically replace the /! path by
1972	# a new random map path (?random/...) with a seed	2714	# a new random map path (?random/...) with a seed
1973	# that depends on the exit object	2715	# that depends on the exit object
1974		2716
1975	my $rmp = parse_random_map_params $exit->msg;	2717	my $rmp = parse_random_map_params $exit->msg;
…		…
1977	if ($exit->map) {	2719	if ($exit->map) {
1978	$rmp->{region} = $exit->region->name;	2720	$rmp->{region} = $exit->region->name;
1979	$rmp->{origin_map} = $exit->map->path;	2721	$rmp->{origin_map} = $exit->map->path;
1980	$rmp->{origin_x} = $exit->x;	2722	$rmp->{origin_x} = $exit->x;
1981	$rmp->{origin_y} = $exit->y;	2723	$rmp->{origin_y} = $exit->y;
		2724
		2725	$exit->map->touch;
1982	}	2726	}
1983		2727
1984	$rmp->{random_seed} ||= $exit->random_seed;	2728	$rmp->{random_seed} ||= $exit->random_seed;
1985		2729
1986	my $data = cf::to_json $rmp;	2730	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1987	my $md5 = Digest::MD5::md5_hex $data;	2731	my $md5 = Digest::MD5::md5_hex $data;
1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2732	my $meta = "$RANDOMDIR/$md5.meta";
1989		2733
1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2734	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1991	aio_write $fh, 0, (length $data), $data, 0;	2735	aio_write $fh, 0, (length $data), $data, 0;
1992	undef $fh;	2736	undef $fh;
1993	aio_rename "$meta~", $meta;	2737	aio_rename "$meta~", $meta;
1994		2738
		2739	my $slaying = "?random/$md5";
		2740
		2741	if ($exit->valid) {
1995	$exit->slaying ("?random/$md5");	2742	$exit->slaying ("?random/$md5");
1996	$exit->msg (undef);	2743	$exit->msg (undef);
		2744	}
1997	}	2745	}
1998	}	2746	}
1999		2747
2000	sub cf::object::player::enter_exit {	2748	sub cf::object::player::enter_exit {
2001	my ($self, $exit) = @_;	2749	my ($self, $exit) = @_;
2002		2750
2003	return unless $self->type == cf::PLAYER;	2751	return unless $self->type == cf::PLAYER;
2004		2752
2005	if ($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;	2753	$self->enter_link;
2017		2754
2018	(async {	2755	(async {
2019	$self->deactivate_recursive; # just to be sure	2756	$Coro::current->{desc} = "enter_exit";
		2757
2020	unless (eval {	2758	unless (eval {
		2759	$self->deactivate_recursive; # just to be sure
		2760
		2761	# random map handling
		2762	{
		2763	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2764
		2765	prepare_random_map $exit
		2766	if $exit->slaying eq "/!";
		2767	}
		2768
		2769	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2770	my $x = $exit->stats->hp;
		2771	my $y = $exit->stats->sp;
		2772
2021	$self->goto ($slaying, $hp, $sp);	2773	$self->goto ($map, $x, $y);
2022		2774
		2775	# if exit is damned, update players death & WoR home-position
		2776	$self->contr->savebed ($map, $x, $y)
		2777	if $exit->flag (cf::FLAG_DAMNED);
		2778
2023	1;	2779	1
2024	}) {	2780	}) {
2025	$self->message ("Something went wrong deep within the crossfire server. "	2781	$self->message ("Something went wrong deep within the deliantra server. "
2026	. "I'll try to bring you back to the map you were before. "	2782	. "I'll try to bring you back to the map you were before. "
2027	. "Please report this to the dungeon master!",	2783	. "Please report this to the dungeon master!",
2028	cf::NDI_UNIQUE | cf::NDI_RED);	2784	cf::NDI_UNIQUE | cf::NDI_RED);
2029		2785
2030	warn "ERROR in enter_exit: $@";	2786	warn "ERROR in enter_exit: $@";
…		…
2049		2805
2050	utf8::encode $text;	2806	utf8::encode $text;
2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2807	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2052	}	2808	}
2053		2809
		2810	=item $client->send_big_packet ($pkt)
		2811
		2812	Like C<send_packet>, but tries to compress large packets, and fragments
		2813	them as required.
		2814
		2815	=cut
		2816
		2817	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2818
		2819	sub cf::client::send_big_packet {
		2820	my ($self, $pkt) = @_;
		2821
		2822	# try lzf for large packets
		2823	$pkt = "lzf " . Compress::LZF::compress $pkt
		2824	if 1024 <= length $pkt and $self->{can_lzf};
		2825
		2826	# split very large packets
		2827	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2828	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2829	$pkt = "frag";
		2830	}
		2831
		2832	$self->send_packet ($pkt);
		2833	}
		2834
		2835	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2836
		2837	Send a drawinfo or msg packet to the client, formatting the msg for the
		2838	client if neccessary. C<$type> should be a string identifying the type of
		2839	the message, with C<log> being the default. If C<$color> is negative, suppress
		2840	the message unless the client supports the msg packet.
		2841
		2842	=cut
		2843
		2844	# non-persistent channels (usually the info channel)
		2845	our %CHANNEL = (
		2846	"c/motd" => {
		2847	id => "infobox",
		2848	title => "MOTD",
		2849	reply => undef,
		2850	tooltip => "The message of the day",
		2851	},
		2852	"c/identify" => {
		2853	id => "infobox",
		2854	title => "Identify",
		2855	reply => undef,
		2856	tooltip => "Items recently identified",
		2857	},
		2858	"c/examine" => {
		2859	id => "infobox",
		2860	title => "Examine",
		2861	reply => undef,
		2862	tooltip => "Signs and other items you examined",
		2863	},
		2864	"c/shopinfo" => {
		2865	id => "infobox",
		2866	title => "Shop Info",
		2867	reply => undef,
		2868	tooltip => "What your bargaining skill tells you about the shop",
		2869	},
		2870	"c/book" => {
		2871	id => "infobox",
		2872	title => "Book",
		2873	reply => undef,
		2874	tooltip => "The contents of a note or book",
		2875	},
		2876	"c/lookat" => {
		2877	id => "infobox",
		2878	title => "Look",
		2879	reply => undef,
		2880	tooltip => "What you saw there",
		2881	},
		2882	"c/who" => {
		2883	id => "infobox",
		2884	title => "Players",
		2885	reply => undef,
		2886	tooltip => "Shows players who are currently online",
		2887	},
		2888	"c/body" => {
		2889	id => "infobox",
		2890	title => "Body Parts",
		2891	reply => undef,
		2892	tooltip => "Shows which body parts you posess and are available",
		2893	},
		2894	"c/statistics" => {
		2895	id => "infobox",
		2896	title => "Statistics",
		2897	reply => undef,
		2898	tooltip => "Shows your primary statistics",
		2899	},
		2900	"c/skills" => {
		2901	id => "infobox",
		2902	title => "Skills",
		2903	reply => undef,
		2904	tooltip => "Shows your experience per skill and item power",
		2905	},
		2906	"c/shopitems" => {
		2907	id => "infobox",
		2908	title => "Shop Items",
		2909	reply => undef,
		2910	tooltip => "Shows the items currently for sale in this shop",
		2911	},
		2912	"c/resistances" => {
		2913	id => "infobox",
		2914	title => "Resistances",
		2915	reply => undef,
		2916	tooltip => "Shows your resistances",
		2917	},
		2918	"c/pets" => {
		2919	id => "infobox",
		2920	title => "Pets",
		2921	reply => undef,
		2922	tooltip => "Shows information abotu your pets/a specific pet",
		2923	},
		2924	"c/perceiveself" => {
		2925	id => "infobox",
		2926	title => "Perceive Self",
		2927	reply => undef,
		2928	tooltip => "You gained detailed knowledge about yourself",
		2929	},
		2930	"c/uptime" => {
		2931	id => "infobox",
		2932	title => "Uptime",
		2933	reply => undef,
		2934	tooltip => "How long the server has been running since last restart",
		2935	},
		2936	"c/mapinfo" => {
		2937	id => "infobox",
		2938	title => "Map Info",
		2939	reply => undef,
		2940	tooltip => "Information related to the maps",
		2941	},
		2942	"c/party" => {
		2943	id => "party",
		2944	title => "Party",
		2945	reply => "gsay ",
		2946	tooltip => "Messages and chat related to your party",
		2947	},
		2948	"c/death" => {
		2949	id => "death",
		2950	title => "Death",
		2951	reply => undef,
		2952	tooltip => "Reason for and more info about your most recent death",
		2953	},
		2954	"c/say" => $SAY_CHANNEL,
		2955	"c/chat" => $CHAT_CHANNEL,
		2956	);
		2957
		2958	sub cf::client::send_msg {
		2959	my ($self, $channel, $msg, $color, @extra) = @_;
		2960
		2961	$msg = $self->pl->expand_cfpod ($msg)
		2962	unless $color & cf::NDI_VERBATIM;
		2963
		2964	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2965
		2966	# check predefined channels, for the benefit of C
		2967	if ($CHANNEL{$channel}) {
		2968	$channel = $CHANNEL{$channel};
		2969
		2970	$self->ext_msg (channel_info => $channel);
		2971	$channel = $channel->{id};
		2972
		2973	} elsif (ref $channel) {
		2974	# send meta info to client, if not yet sent
		2975	unless (exists $self->{channel}{$channel->{id}}) {
		2976	$self->{channel}{$channel->{id}} = $channel;
		2977	$self->ext_msg (channel_info => $channel);
		2978	}
		2979
		2980	$channel = $channel->{id};
		2981	}
		2982
		2983	return unless @extra || length $msg;
		2984
		2985	# default colour, mask it out
		2986	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2987	if $color & cf::NDI_DEF;
		2988
		2989	my $pkt = "msg "
		2990	. $self->{json_coder}->encode (
		2991	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2992	);
		2993
		2994	$self->send_big_packet ($pkt);
		2995	}
		2996
2054	=item $client->ext_event ($type, %msg)	2997	=item $client->ext_msg ($type, @msg)
2055		2998
2056	Sends an exti event to the client.	2999	Sends an ext event to the client.
2057		3000
2058	=cut	3001	=cut
2059		3002
2060	sub cf::client::ext_event($$%) {	3003	sub cf::client::ext_msg($$@) {
2061	my ($self, $type, %msg) = @_;	3004	my ($self, $type, @msg) = @_;
2062		3005
		3006	if ($self->extcmd == 2) {
		3007	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3008	} elsif ($self->extcmd == 1) { # TODO: remove
2063	$msg{msgtype} = "event_$type";	3009	push @msg, msgtype => "event_$type";
2064	$self->send_packet ("ext " . cf::to_json \%msg);	3010	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3011	}
		3012	}
		3013
		3014	=item $client->ext_reply ($msgid, @msg)
		3015
		3016	Sends an ext reply to the client.
		3017
		3018	=cut
		3019
		3020	sub cf::client::ext_reply($$@) {
		3021	my ($self, $id, @msg) = @_;
		3022
		3023	if ($self->extcmd == 2) {
		3024	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3025	} elsif ($self->extcmd == 1) {
		3026	#TODO: version 1, remove
		3027	unshift @msg, msgtype => "reply", msgid => $id;
		3028	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3029	}
2065	}	3030	}
2066		3031
2067	=item $success = $client->query ($flags, "text", \&cb)	3032	=item $success = $client->query ($flags, "text", \&cb)
2068		3033
2069	Queues a query to the client, calling the given callback with	3034	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>,	3035	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>.	3036	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2072		3037
2073	Queries can fail, so check the return code. Or don't, as queries will become	3038	Queries can fail, so check the return code. Or don't, as queries will
2074	reliable at some point in the future.	3039	become reliable at some point in the future.
2075		3040
2076	=cut	3041	=cut
2077		3042
2078	sub cf::client::query {	3043	sub cf::client::query {
2079	my ($self, $flags, $text, $cb) = @_;	3044	my ($self, $flags, $text, $cb) = @_;
…		…
2087	utf8::encode $text;	3052	utf8::encode $text;
2088	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3053	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2089		3054
2090	$self->send_packet ($self->{query_queue}[0][0])	3055	$self->send_packet ($self->{query_queue}[0][0])
2091	if @{ $self->{query_queue} } == 1;	3056	if @{ $self->{query_queue} } == 1;
		3057
		3058	1
2092	}	3059	}
2093		3060
2094	cf::client->attach (	3061	cf::client->attach (
		3062	on_connect => sub {
		3063	my ($ns) = @_;
		3064
		3065	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3066	},
2095	on_reply => sub {	3067	on_reply => sub {
2096	my ($ns, $msg) = @_;	3068	my ($ns, $msg) = @_;
2097		3069
2098	# this weird shuffling is so that direct followup queries	3070	# this weird shuffling is so that direct followup queries
2099	# get handled first	3071	# get handled first
…		…
2111	} else {	3083	} else {
2112	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3084	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2113	}	3085	}
2114	}	3086	}
2115	},	3087	},
		3088	on_exticmd => sub {
		3089	my ($ns, $buf) = @_;
		3090
		3091	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3092
		3093	if (ref $msg) {
		3094	my ($type, $reply, @payload) =
		3095	"ARRAY" eq ref $msg
		3096	? @$msg
		3097	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3098
		3099	my @reply;
		3100
		3101	if (my $cb = $EXTICMD{$type}) {
		3102	@reply = $cb->($ns, @payload);
		3103	}
		3104
		3105	$ns->ext_reply ($reply, @reply)
		3106	if $reply;
		3107
		3108	} else {
		3109	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3110	}
		3111
		3112	cf::override;
		3113	},
2116	);	3114	);
2117		3115
2118	=item $client->async (\&cb)	3116	=item $client->async (\&cb)
2119		3117
2120	Create a new coroutine, running the specified callback. The coroutine will	3118	Create a new coroutine, running the specified callback. The coroutine will
…		…
2161	our $safe = new Safe "safe";	3159	our $safe = new Safe "safe";
2162	our $safe_hole = new Safe::Hole;	3160	our $safe_hole = new Safe::Hole;
2163		3161
2164	$SIG{FPE} = 'IGNORE';	3162	$SIG{FPE} = 'IGNORE';
2165		3163
2166	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3164	$safe->permit_only (Opcode::opset qw(
		3165	:base_core :base_mem :base_orig :base_math :base_loop
		3166	grepstart grepwhile mapstart mapwhile
		3167	sort time
		3168	));
2167		3169
2168	# here we export the classes and methods available to script code	3170	# here we export the classes and methods available to script code
2169		3171
2170	=pod	3172	=pod
2171		3173
2172	The following functions and methods are available within a safe environment:	3174	The following functions and methods are available within a safe environment:
2173		3175
2174	cf::object contr pay_amount pay_player map	3176	cf::object
		3177	contr pay_amount pay_player map x y force_find force_add destroy
		3178	insert remove name archname title slaying race decrease split
		3179	value
		3180
2175	cf::object::player player	3181	cf::object::player
2176	cf::player peaceful	3182	player
2177	cf::map trigger	3183
		3184	cf::player
		3185	peaceful
		3186
		3187	cf::map
		3188	trigger
2178		3189
2179	=cut	3190	=cut
2180		3191
2181	for (	3192	for (
2182	["cf::object" => qw(contr pay_amount pay_player map)],	3193	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3194	insert remove inv nrof name archname title slaying race
		3195	decrease split destroy change_exp value msg lore send_msg)],
2183	["cf::object::player" => qw(player)],	3196	["cf::object::player" => qw(player)],
2184	["cf::player" => qw(peaceful)],	3197	["cf::player" => qw(peaceful send_msg)],
2185	["cf::map" => qw(trigger)],	3198	["cf::map" => qw(trigger)],
2186	) {	3199	) {
2187	no strict 'refs';	3200	no strict 'refs';
2188	my ($pkg, @funs) = @$_;	3201	my ($pkg, @funs) = @$_;
2189	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3202	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2207		3220
2208	my $qcode = $code;	3221	my $qcode = $code;
2209	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3222	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2210	$qcode =~ s/\n/\\n/g;	3223	$qcode =~ s/\n/\\n/g;
2211		3224
		3225	%vars = (_dummy => 0) unless %vars;
		3226
		3227	my @res;
2212	local $_;	3228	local $_;
2213	local @safe::cf::_safe_eval_args = values %vars;
2214		3229
2215	my $eval =	3230	my $eval =
2216	"do {\n"	3231	"do {\n"
2217	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3232	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2218	. "#line 0 \"{$qcode}\"\n"	3233	. "#line 0 \"{$qcode}\"\n"
2219	. $code	3234	. $code
2220	. "\n}"	3235	. "\n}"
2221	;	3236	;
2222		3237
		3238	if ($CFG{safe_eval}) {
2223	sub_generation_inc;	3239	sub_generation_inc;
		3240	local @safe::cf::_safe_eval_args = values %vars;
2224	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3241	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2225	sub_generation_inc;	3242	sub_generation_inc;
		3243	} else {
		3244	local @cf::_safe_eval_args = values %vars;
		3245	@res = wantarray ? eval eval : scalar eval $eval;
		3246	}
2226		3247
2227	if ($@) {	3248	if ($@) {
2228	warn "$@";	3249	warn "$@";
2229	warn "while executing safe code '$code'\n";	3250	warn "while executing safe code '$code'\n";
2230	warn "with arguments " . (join " ", %vars) . "\n";	3251	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2249	=cut	3270	=cut
2250		3271
2251	sub register_script_function {	3272	sub register_script_function {
2252	my ($fun, $cb) = @_;	3273	my ($fun, $cb) = @_;
2253		3274
2254	no strict 'refs';	3275	$fun = "safe::$fun" if $CFG{safe_eval};
2255	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3276	*$fun = $safe_hole->wrap ($cb);
2256	}	3277	}
2257		3278
2258	=back	3279	=back
2259		3280
2260	=cut	3281	=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		3282
2334	#############################################################################	3283	#############################################################################
2335	# the server's init and main functions	3284	# the server's init and main functions
2336		3285
2337	sub load_facedata {	3286	sub load_facedata($) {
2338	my $path = sprintf "%s/facedata", cf::datadir;	3287	my ($path) = @_;
		3288
		3289	# HACK to clear player env face cache, we need some signal framework
		3290	# for this (global event?)
		3291	%ext::player_env::MUSIC_FACE_CACHE = ();
		3292
		3293	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2339		3294
2340	warn "loading facedata from $path\n";	3295	warn "loading facedata from $path\n";
2341		3296
2342	my $facedata;	3297	my $facedata;
2343	0 < aio_load $path, $facedata	3298	0 < aio_load $path, $facedata
…		…
2346	$facedata = Coro::Storable::thaw $facedata;	3301	$facedata = Coro::Storable::thaw $facedata;
2347		3302
2348	$facedata->{version} == 2	3303	$facedata->{version} == 2
2349	or cf::cleanup "$path: version mismatch, cannot proceed.";	3304	or cf::cleanup "$path: version mismatch, cannot proceed.";
2350		3305
		3306	# patch in the exptable
		3307	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3308	$facedata->{resource}{"res/exp_table"} = {
		3309	type => FT_RSRC,
		3310	data => $exp_table,
		3311	hash => (Digest::MD5::md5 $exp_table),
		3312	};
		3313	cf::cede_to_tick;
		3314
2351	{	3315	{
2352	my $faces = $facedata->{faceinfo};	3316	my $faces = $facedata->{faceinfo};
2353		3317
2354	while (my ($face, $info) = each %$faces) {	3318	while (my ($face, $info) = each %$faces) {
2355	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3319	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3320
2356	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3321	cf::face::set_visibility $idx, $info->{visibility};
		3322	cf::face::set_magicmap $idx, $info->{magicmap};
2357	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3323	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2358	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3324	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2359	Coro::cede;	3325
		3326	cf::cede_to_tick;
2360	}	3327	}
2361		3328
2362	while (my ($face, $info) = each %$faces) {	3329	while (my ($face, $info) = each %$faces) {
2363	next unless $info->{smooth};	3330	next unless $info->{smooth};
		3331
2364	my $idx = cf::face::find $face	3332	my $idx = cf::face::find $face
2365	or next;	3333	or next;
		3334
2366	if (my $smooth = cf::face::find $info->{smooth}) {	3335	if (my $smooth = cf::face::find $info->{smooth}) {
		3336	cf::face::set_smooth $idx, $smooth;
2367	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3337	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2368	} else {	3338	} else {
2369	warn "smooth face '$info->{smooth}' not found for face '$face'";	3339	warn "smooth face '$info->{smooth}' not found for face '$face'";
2370	}	3340	}
2371	Coro::cede;	3341
		3342	cf::cede_to_tick;
2372	}	3343	}
2373	}	3344	}
2374		3345
2375	{	3346	{
2376	my $anims = $facedata->{animinfo};	3347	my $anims = $facedata->{animinfo};
2377		3348
2378	while (my ($anim, $info) = each %$anims) {	3349	while (my ($anim, $info) = each %$anims) {
2379	cf::anim::set $anim, $info->{frames}, $info->{facings};	3350	cf::anim::set $anim, $info->{frames}, $info->{facings};
2380	Coro::cede;	3351	cf::cede_to_tick;
2381	}	3352	}
2382		3353
2383	cf::anim::invalidate_all; # d'oh	3354	cf::anim::invalidate_all; # d'oh
2384	}	3355	}
2385		3356
		3357	{
		3358	my $res = $facedata->{resource};
		3359
		3360	while (my ($name, $info) = each %$res) {
		3361	if (defined $info->{type}) {
		3362	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3363
		3364	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3365	cf::face::set_type $idx, $info->{type};
		3366	} else {
		3367	$RESOURCE{$name} = $info;
		3368	}
		3369
		3370	cf::cede_to_tick;
		3371	}
		3372	}
		3373
		3374	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3375
2386	1	3376	1
2387	}	3377	}
2388		3378
		3379	cf::global->attach (on_resource_update => sub {
		3380	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3381	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3382
		3383	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3384	my $sound = $soundconf->{compat}[$_]
		3385	or next;
		3386
		3387	my $face = cf::face::find "sound/$sound->[1]";
		3388	cf::sound::set $sound->[0] => $face;
		3389	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3390	}
		3391
		3392	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3393	my $face = cf::face::find "sound/$v";
		3394	cf::sound::set $k => $face;
		3395	}
		3396	}
		3397	});
		3398
		3399	register_exticmd fx_want => sub {
		3400	my ($ns, $want) = @_;
		3401
		3402	while (my ($k, $v) = each %$want) {
		3403	$ns->fx_want ($k, $v);
		3404	}
		3405	};
		3406
		3407	sub load_resource_file($) {
		3408	my $guard = lock_acquire "load_resource_file";
		3409
		3410	my $status = load_resource_file_ $_[0];
		3411	get_slot 0.1, 100;
		3412	cf::arch::commit_load;
		3413
		3414	$status
		3415	}
		3416
		3417	sub reload_regions {
		3418	# HACK to clear player env face cache, we need some signal framework
		3419	# for this (global event?)
		3420	%ext::player_env::MUSIC_FACE_CACHE = ();
		3421
		3422	load_resource_file "$MAPDIR/regions"
		3423	or die "unable to load regions file\n";
		3424
		3425	for (cf::region::list) {
		3426	$_->{match} = qr/$_->{match}/
		3427	if exists $_->{match};
		3428	}
		3429	}
		3430
		3431	sub reload_facedata {
		3432	load_facedata "$DATADIR/facedata"
		3433	or die "unable to load facedata\n";
		3434	}
		3435
		3436	sub reload_archetypes {
		3437	load_resource_file "$DATADIR/archetypes"
		3438	or die "unable to load archetypes\n";
		3439	}
		3440
		3441	sub reload_treasures {
		3442	load_resource_file "$DATADIR/treasures"
		3443	or die "unable to load treasurelists\n";
		3444	}
		3445
2389	sub reload_resources {	3446	sub reload_resources {
2390	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3447	warn "reloading resource files...\n";
2391	or die "unable to load regions file\n";#d#	3448
2392	load_facedata	3449	reload_facedata;
2393	or die "unable to load facedata\n";#d#	3450	reload_archetypes;
2394	}
2395
2396	sub init {
2397	reload_resources;	3451	reload_regions;
2398	}	3452	reload_treasures;
2399		3453
2400	sub cfg_load {	3454	warn "finished reloading resource files\n";
		3455	}
		3456
		3457	sub reload_config {
		3458	warn "reloading config file...\n";
		3459
2401	open my $fh, "<:utf8", cf::confdir . "/config"	3460	open my $fh, "<:utf8", "$CONFDIR/config"
2402	or return;	3461	or return;
2403		3462
2404	local $/;	3463	local $/;
2405	*CFG = YAML::Syck::Load <$fh>;	3464	*CFG = YAML::XS::Load scalar <$fh>;
2406		3465
2407	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3466	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2408		3467
2409	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3468	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2410	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3469	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2414	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3473	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2415	and die "WARNING: m(un)lockall failed: $!\n";	3474	and die "WARNING: m(un)lockall failed: $!\n";
2416	};	3475	};
2417	warn $@ if $@;	3476	warn $@ if $@;
2418	}	3477	}
		3478
		3479	warn "finished reloading resource files\n";
		3480	}
		3481
		3482	sub pidfile() {
		3483	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3484	or die "$PIDFILE: $!";
		3485	flock $fh, &Fcntl::LOCK_EX
		3486	or die "$PIDFILE: flock: $!";
		3487	$fh
		3488	}
		3489
		3490	# make sure only one server instance is running at any one time
		3491	sub atomic {
		3492	my $fh = pidfile;
		3493
		3494	my $pid = <$fh>;
		3495	kill 9, $pid if $pid > 0;
		3496
		3497	seek $fh, 0, 0;
		3498	print $fh $$;
		3499	}
		3500
		3501	sub main_loop {
		3502	warn "EV::loop starting\n";
		3503	if (1) {
		3504	EV::loop;
		3505	}
		3506	warn "EV::loop returned\n";
		3507	goto &main_loop unless $REALLY_UNLOOP;
2419	}	3508	}
2420		3509
2421	sub main {	3510	sub main {
		3511	cf::init_globals; # initialise logging
		3512
		3513	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3514	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3515	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3516	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3517
		3518	cf::init_experience;
		3519	cf::init_anim;
		3520	cf::init_attackmess;
		3521	cf::init_dynamic;
		3522
		3523	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3524
2422	# we must not ever block the main coroutine	3525	# we must not ever block the main coroutine
2423	local $Coro::idle = sub {	3526	local $Coro::idle = sub {
2424	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3527	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2425	(async {	3528	(async {
2426	Event::one_event;	3529	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3530	EV::loop EV::LOOP_ONESHOT;
2427	})->prio (Coro::PRIO_MAX);	3531	})->prio (Coro::PRIO_MAX);
2428	};	3532	};
2429		3533
2430	cfg_load;	3534	evthread_start IO::AIO::poll_fileno;
		3535
		3536	cf::sync_job {
		3537	cf::load_settings;
		3538	cf::load_materials;
		3539
		3540	reload_resources;
		3541	reload_config;
2431	db_init;	3542	db_init;
		3543
		3544	cf::init_uuid;
		3545	cf::init_signals;
		3546	cf::init_commands;
		3547	cf::init_skills;
		3548
		3549	cf::init_beforeplay;
		3550
		3551	atomic;
		3552
2432	load_extensions;	3553	load_extensions;
2433		3554
2434	$TICK_WATCHER->start;	3555	utime time, time, $RUNTIMEFILE;
2435	Event::loop;	3556
		3557	# no (long-running) fork's whatsoever before this point(!)
		3558	use POSIX ();
		3559	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3560
		3561	(pop @POST_INIT)->(0) while @POST_INIT;
		3562	};
		3563
		3564	main_loop;
2436	}	3565	}
2437		3566
2438	#############################################################################	3567	#############################################################################
2439	# initialisation and cleanup	3568	# initialisation and cleanup
2440		3569
2441	# install some emergency cleanup handlers	3570	# install some emergency cleanup handlers
2442	BEGIN {	3571	BEGIN {
		3572	our %SIGWATCHER = ();
2443	for my $signal (qw(INT HUP TERM)) {	3573	for my $signal (qw(INT HUP TERM)) {
2444	Event->signal (	3574	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2445	reentrant => 0,
2446	data => WF_AUTOCANCEL,
2447	signal => $signal,
2448	prio => 0,
2449	cb => sub {
2450	cf::cleanup "SIG$signal";	3575	cf::cleanup "SIG$signal";
2451	},
2452	);	3576	};
		3577	}
		3578	}
		3579
		3580	sub write_runtime_sync {
		3581	my $t0 = EV::time;
		3582
		3583	# first touch the runtime file to show we are still running:
		3584	# the fsync below can take a very very long time.
		3585
		3586	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3587
		3588	my $guard = cf::lock_acquire "write_runtime";
		3589
		3590	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3591	or return;
		3592
		3593	my $value = $cf::RUNTIME + 90 + 10;
		3594	# 10 is the runtime save interval, for a monotonic clock
		3595	# 60 allows for the watchdog to kill the server.
		3596
		3597	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3598	and return;
		3599
		3600	# always fsync - this file is important
		3601	aio_fsync $fh
		3602	and return;
		3603
		3604	# touch it again to show we are up-to-date
		3605	aio_utime $fh, undef, undef;
		3606
		3607	close $fh
		3608	or return;
		3609
		3610	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3611	and return;
		3612
		3613	warn sprintf "runtime file written (%gs).\n", EV::time - $t0;
		3614
2453	}	3615	1
		3616	}
		3617
		3618	our $uuid_lock;
		3619	our $uuid_skip;
		3620
		3621	sub write_uuid_sync($) {
		3622	$uuid_skip ||= $_[0];
		3623
		3624	return if $uuid_lock;
		3625	local $uuid_lock = 1;
		3626
		3627	my $uuid = "$LOCALDIR/uuid";
		3628
		3629	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3630	or return;
		3631
		3632	my $value = uuid_seq uuid_cur;
		3633
		3634	unless ($value) {
		3635	warn "cowardly refusing to write zero uuid value!\n";
		3636	return;
		3637	}
		3638
		3639	my $value = uuid_str $value + $uuid_skip;
		3640	$uuid_skip = 0;
		3641
		3642	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3643	and return;
		3644
		3645	# always fsync - this file is important
		3646	aio_fsync $fh
		3647	and return;
		3648
		3649	close $fh
		3650	or return;
		3651
		3652	aio_rename "$uuid~", $uuid
		3653	and return;
		3654
		3655	warn "uuid file written ($value).\n";
		3656
		3657	1
		3658
		3659	}
		3660
		3661	sub write_uuid($$) {
		3662	my ($skip, $sync) = @_;
		3663
		3664	$sync ? write_uuid_sync $skip
		3665	: async { write_uuid_sync $skip };
2454	}	3666	}
2455		3667
2456	sub emergency_save() {	3668	sub emergency_save() {
2457	my $freeze_guard = cf::freeze_mainloop;	3669	my $freeze_guard = cf::freeze_mainloop;
2458		3670
2459	warn "enter emergency perl save\n";	3671	warn "emergency_perl_save: enter\n";
2460		3672
2461	cf::sync_job {	3673	cf::sync_job {
		3674	# this is a trade-off: we want to be very quick here, so
		3675	# save all maps without fsync, and later call a global sync
		3676	# (which in turn might be very very slow)
		3677	local $USE_FSYNC = 0;
		3678
2462	# use a peculiar iteration method to avoid tripping on perl	3679	# use a peculiar iteration method to avoid tripping on perl
2463	# refcount bugs in for. also avoids problems with players	3680	# refcount bugs in for. also avoids problems with players
2464	# and maps saved/destroyed asynchronously.	3681	# and maps saved/destroyed asynchronously.
2465	warn "begin emergency player save\n";	3682	warn "emergency_perl_save: begin player save\n";
2466	for my $login (keys %cf::PLAYER) {	3683	for my $login (keys %cf::PLAYER) {
2467	my $pl = $cf::PLAYER{$login} or next;	3684	my $pl = $cf::PLAYER{$login} or next;
2468	$pl->valid or next;	3685	$pl->valid or next;
		3686	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2469	$pl->save;	3687	$pl->save;
2470	}	3688	}
2471	warn "end emergency player save\n";	3689	warn "emergency_perl_save: end player save\n";
2472		3690
2473	warn "begin emergency map save\n";	3691	warn "emergency_perl_save: begin map save\n";
2474	for my $path (keys %cf::MAP) {	3692	for my $path (keys %cf::MAP) {
2475	my $map = $cf::MAP{$path} or next;	3693	my $map = $cf::MAP{$path} or next;
2476	$map->valid or next;	3694	$map->valid or next;
2477	$map->save;	3695	$map->save;
2478	}	3696	}
2479	warn "end emergency map save\n";	3697	warn "emergency_perl_save: end map save\n";
2480		3698
2481	warn "begin emergency database checkpoint\n";	3699	warn "emergency_perl_save: begin database checkpoint\n";
2482	BDB::db_env_txn_checkpoint $DB_ENV;	3700	BDB::db_env_txn_checkpoint $DB_ENV;
2483	warn "end emergency database checkpoint\n";	3701	warn "emergency_perl_save: end database checkpoint\n";
		3702
		3703	warn "emergency_perl_save: begin write uuid\n";
		3704	write_uuid_sync 1;
		3705	warn "emergency_perl_save: end write uuid\n";
2484	};	3706	};
2485		3707
		3708	warn "emergency_perl_save: starting sync()\n";
		3709	IO::AIO::aio_sync sub {
		3710	warn "emergency_perl_save: finished sync()\n";
		3711	};
		3712
2486	warn "leave emergency perl save\n";	3713	warn "emergency_perl_save: leave\n";
2487	}	3714	}
2488		3715
2489	sub post_cleanup {	3716	sub post_cleanup {
2490	my ($make_core) = @_;	3717	my ($make_core) = @_;
2491		3718
2492	warn Carp::longmess "post_cleanup backtrace"	3719	warn Carp::longmess "post_cleanup backtrace"
2493	if $make_core;	3720	if $make_core;
2494	}
2495		3721
		3722	my $fh = pidfile;
		3723	unlink $PIDFILE if <$fh> == $$;
		3724	}
		3725
		3726	# a safer delete_package, copied from Symbol
		3727	sub clear_package($) {
		3728	my $pkg = shift;
		3729
		3730	# expand to full symbol table name if needed
		3731	unless ($pkg =~ /^main::.*::$/) {
		3732	$pkg = "main$pkg" if $pkg =~ /^::/;
		3733	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3734	$pkg .= '::' unless $pkg =~ /::$/;
		3735	}
		3736
		3737	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3738	my $stem_symtab = *{$stem}{HASH};
		3739
		3740	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3741	or return;
		3742
		3743	# clear all symbols
		3744	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3745	for my $name (keys %$leaf_symtab) {
		3746	_gv_clear *{"$pkg$name"};
		3747	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3748	}
		3749	warn "cleared package $pkg\n";#d#
		3750	}
		3751
2496	sub reload() {	3752	sub do_reload_perl() {
2497	# can/must only be called in main	3753	# can/must only be called in main
2498	if ($Coro::current != $Coro::main) {	3754	if ($Coro::current != $Coro::main) {
2499	warn "can only reload from main coroutine";	3755	warn "can only reload from main coroutine";
2500	return;	3756	return;
2501	}	3757	}
2502		3758
		3759	return if $RELOAD++;
		3760
		3761	my $t1 = EV::time;
		3762
		3763	while ($RELOAD) {
2503	warn "reloading...";	3764	warn "reloading...";
2504		3765
2505	warn "entering sync_job";	3766	warn "entering sync_job";
2506		3767
2507	cf::sync_job {	3768	cf::sync_job {
2508	cf::write_runtime; # external watchdog should not bark	3769	cf::write_runtime_sync; # external watchdog should not bark
2509	cf::emergency_save;	3770	cf::emergency_save;
2510	cf::write_runtime; # external watchdog should not bark	3771	cf::write_runtime_sync; # external watchdog should not bark
2511		3772
2512	warn "syncing database to disk";	3773	warn "syncing database to disk";
2513	BDB::db_env_txn_checkpoint $DB_ENV;	3774	BDB::db_env_txn_checkpoint $DB_ENV;
2514		3775
2515	# if anything goes wrong in here, we should simply crash as we already saved	3776	# if anything goes wrong in here, we should simply crash as we already saved
2516		3777
2517	warn "cancelling all WF_AUTOCANCEL watchers";
2518	for (Event::all_watchers) {
2519	$_->cancel if $_->data & WF_AUTOCANCEL;
2520	}
2521
2522	warn "flushing outstanding aio requests";	3778	warn "flushing outstanding aio requests";
2523	for (;;) {
2524	BDB::flush;
2525	IO::AIO::flush;
2526	Coro::cede;
2527	last unless IO::AIO::nreqs || BDB::nreqs;	3779	while (IO::AIO::nreqs || BDB::nreqs) {
2528	warn "iterate...";	3780	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2529	}
2530
2531	++$RELOAD;
2532
2533	warn "cancelling all extension coros";
2534	$_->cancel for values %EXT_CORO;
2535	%EXT_CORO = ();
2536
2537	warn "removing commands";
2538	%COMMAND = ();
2539
2540	warn "removing ext commands";
2541	%EXTCMD = ();
2542
2543	warn "unloading/nuking all extensions";
2544	for my $pkg (@EXTS) {
2545	warn "... unloading $pkg";
2546
2547	if (my $cb = $pkg->can ("unload")) {
2548	eval {
2549	$cb->($pkg);
2550	1
2551	} or warn "$pkg unloaded, but with errors: $@";
2552	}	3781	}
2553		3782
2554	warn "... nuking $pkg";	3783	warn "cancelling all extension coros";
2555	Symbol::delete_package $pkg;	3784	$_->cancel for values %EXT_CORO;
2556	}	3785	%EXT_CORO = ();
2557		3786
2558	warn "unloading all perl modules loaded from $LIBDIR";	3787	warn "removing commands";
2559	while (my ($k, $v) = each %INC) {	3788	%COMMAND = ();
2560	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2561		3789
		3790	warn "removing ext/exti commands";
		3791	%EXTCMD = ();
		3792	%EXTICMD = ();
		3793
		3794	warn "unloading/nuking all extensions";
		3795	for my $pkg (@EXTS) {
2562	warn "... unloading $k";	3796	warn "... unloading $pkg";
2563	delete $INC{$k};
2564		3797
2565	$k =~ s/\.pm$//;
2566	$k =~ s/\//::/g;
2567
2568	if (my $cb = $k->can ("unload_module")) {	3798	if (my $cb = $pkg->can ("unload")) {
		3799	eval {
2569	$cb->();	3800	$cb->($pkg);
		3801	1
		3802	} or warn "$pkg unloaded, but with errors: $@";
		3803	}
		3804
		3805	warn "... clearing $pkg";
		3806	clear_package $pkg;
2570	}	3807	}
2571		3808
2572	Symbol::delete_package $k;	3809	warn "unloading all perl modules loaded from $LIBDIR";
		3810	while (my ($k, $v) = each %INC) {
		3811	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3812
		3813	warn "... unloading $k";
		3814	delete $INC{$k};
		3815
		3816	$k =~ s/\.pm$//;
		3817	$k =~ s/\//::/g;
		3818
		3819	if (my $cb = $k->can ("unload_module")) {
		3820	$cb->();
		3821	}
		3822
		3823	clear_package $k;
2573	}	3824	}
2574		3825
2575	warn "getting rid of safe::, as good as possible";	3826	warn "getting rid of safe::, as good as possible";
2576	Symbol::delete_package "safe::$_"	3827	clear_package "safe::$_"
2577	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3828	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2578		3829
2579	warn "unloading cf.pm \"a bit\"";	3830	warn "unloading cf.pm \"a bit\"";
2580	delete $INC{"cf.pm"};	3831	delete $INC{"cf.pm"};
		3832	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2581		3833
2582	# don't, removes xs symbols, too,	3834	# don't, removes xs symbols, too,
2583	# and global variables created in xs	3835	# and global variables created in xs
2584	#Symbol::delete_package __PACKAGE__;	3836	#clear_package __PACKAGE__;
2585		3837
2586	warn "unload completed, starting to reload now";	3838	warn "unload completed, starting to reload now";
2587		3839
2588	warn "reloading cf.pm";	3840	warn "reloading cf.pm";
2589	require cf;	3841	require cf;
2590	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3842	cf::_connect_to_perl_1;
2591		3843
2592	warn "loading config and database again";	3844	warn "loading config and database again";
2593	cf::cfg_load;	3845	cf::reload_config;
2594		3846
2595	warn "loading extensions";	3847	warn "loading extensions";
2596	cf::load_extensions;	3848	cf::load_extensions;
2597		3849
		3850	if ($REATTACH_ON_RELOAD) {
2598	warn "reattaching attachments to objects/players";	3851	warn "reattaching attachments to objects/players";
2599	_global_reattach; # objects, sockets	3852	_global_reattach; # objects, sockets
2600	warn "reattaching attachments to maps";	3853	warn "reattaching attachments to maps";
2601	reattach $_ for values %MAP;	3854	reattach $_ for values %MAP;
2602	warn "reattaching attachments to players";	3855	warn "reattaching attachments to players";
2603	reattach $_ for values %PLAYER;	3856	reattach $_ for values %PLAYER;
		3857	}
2604		3858
2605	warn "loading reloadable resources";	3859	warn "running post_init jobs";
2606	reload_resources;	3860	(pop @POST_INIT)->(1) while @POST_INIT;
2607		3861
2608	warn "leaving sync_job";	3862	warn "leaving sync_job";
2609		3863
2610	1	3864	1
2611	} or do {	3865	} or do {
2612	warn $@;	3866	warn $@;
2613	warn "error while reloading, exiting.";	3867	cf::cleanup "error while reloading, exiting.";
2614	exit 1;	3868	};
		3869
		3870	warn "reloaded";
		3871	--$RELOAD;
		3872	}
		3873
		3874	$t1 = EV::time - $t1;
		3875	warn "reload completed in ${t1}s\n";
		3876	};
		3877
		3878	our $RELOAD_WATCHER; # used only during reload
		3879
		3880	sub reload_perl() {
		3881	# doing reload synchronously and two reloads happen back-to-back,
		3882	# coro crashes during coro_state_free->destroy here.
		3883
		3884	$RELOAD_WATCHER ||= cf::async {
		3885	Coro::AIO::aio_wait cache_extensions;
		3886
		3887	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3888	do_reload_perl;
		3889	undef $RELOAD_WATCHER;
		3890	};
2615	};	3891	};
2616		3892	}
2617	warn "reloaded";
2618	};
2619
2620	our $RELOAD_WATCHER; # used only during reload
2621		3893
2622	register_command "reload" => sub {	3894	register_command "reload" => sub {
2623	my ($who, $arg) = @_;	3895	my ($who, $arg) = @_;
2624		3896
2625	if ($who->flag (FLAG_WIZ)) {	3897	if ($who->flag (FLAG_WIZ)) {
2626	$who->message ("reloading server.");	3898	$who->message ("reloading server.");
2627		3899	async {
2628	# doing reload synchronously and two reloads happen back-to-back,	3900	$Coro::current->{desc} = "perl_reload";
2629	# coro crashes during coro_state_free->destroy here.
2630
2631	$RELOAD_WATCHER ||= Event->timer (
2632	reentrant => 0,
2633	after => 0,
2634	data => WF_AUTOCANCEL,
2635	cb => sub {
2636	reload;	3901	reload_perl;
2637	undef $RELOAD_WATCHER;
2638	},
2639	);	3902	};
2640	}	3903	}
2641	};	3904	};
2642		3905
2643	unshift @INC, $LIBDIR;	3906	unshift @INC, $LIBDIR;
2644		3907
…		…
2646		3909
2647	our @WAIT_FOR_TICK;	3910	our @WAIT_FOR_TICK;
2648	our @WAIT_FOR_TICK_BEGIN;	3911	our @WAIT_FOR_TICK_BEGIN;
2649		3912
2650	sub wait_for_tick {	3913	sub wait_for_tick {
		3914	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3915
2651	my $signal = new Coro::Signal;	3916	my $signal = new Coro::Signal;
2652	push @WAIT_FOR_TICK, $signal;	3917	push @WAIT_FOR_TICK, $signal;
2653	$signal->wait;	3918	$signal->wait;
2654	}	3919	}
2655		3920
2656	sub wait_for_tick_begin {	3921	sub wait_for_tick_begin {
		3922	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3923
2657	my $signal = new Coro::Signal;	3924	my $signal = new Coro::Signal;
2658	push @WAIT_FOR_TICK_BEGIN, $signal;	3925	push @WAIT_FOR_TICK_BEGIN, $signal;
2659	$signal->wait;	3926	$signal->wait;
2660	}	3927	}
2661		3928
2662	$TICK_WATCHER = Event->timer (	3929	sub tick {
2663	reentrant => 0,
2664	parked => 1,
2665	prio => 0,
2666	at => $NEXT_TICK || $TICK,
2667	data => WF_AUTOCANCEL,
2668	cb => sub {
2669	if ($Coro::current != $Coro::main) {	3930	if ($Coro::current != $Coro::main) {
2670	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3931	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2671	unless ++$bug_warning > 10;	3932	unless ++$bug_warning > 10;
2672	return;	3933	return;
2673	}	3934	}
2674		3935
2675	$NOW = Event::time;
2676
2677	cf::server_tick; # one server iteration	3936	cf::server_tick; # one server iteration
2678	$RUNTIME += $TICK;
2679	$NEXT_TICK += $TICK;
2680		3937
		3938	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
		3939
2681	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3940	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2682	$NEXT_RUNTIME_WRITE = $NOW + 10;	3941	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2683	Coro::async_pool {	3942	Coro::async_pool {
		3943	$Coro::current->{desc} = "runtime saver";
2684	write_runtime	3944	write_runtime_sync
2685	or warn "ERROR: unable to write runtime file: $!";	3945	or warn "ERROR: unable to write runtime file: $!";
2686	};
2687	}	3946	};
		3947	}
2688		3948
2689	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3949	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2690	$sig->send;	3950	$sig->send;
2691	}	3951	}
2692	while (my $sig = shift @WAIT_FOR_TICK) {	3952	while (my $sig = shift @WAIT_FOR_TICK) {
2693	$sig->send;	3953	$sig->send;
2694	}
2695
2696	# my $AFTER = Event::time;
2697	# warn $AFTER - $NOW;#d#
2698
2699	# if we are delayed by four ticks or more, skip them all
2700	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2701
2702	$TICK_WATCHER->at ($NEXT_TICK);
2703	$TICK_WATCHER->start;
2704	},	3954	}
2705	);	3955
		3956	$LOAD = ($NOW - $TICK_START) / $TICK;
		3957	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3958
		3959	if (0) {
		3960	if ($NEXT_TICK) {
		3961	my $jitter = $TICK_START - $NEXT_TICK;
		3962	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3963	warn "jitter $JITTER\n";#d#
		3964	}
		3965	}
		3966	}
2706		3967
2707	{	3968	{
2708	BDB::max_poll_time $TICK * 0.1;	3969	# configure BDB
2709	$BDB_POLL_WATCHER = Event->io (	3970
2710	reentrant => 0,
2711	fd => BDB::poll_fileno,
2712	poll => 'r',
2713	prio => 0,
2714	data => WF_AUTOCANCEL,
2715	cb => \&BDB::poll_cb,
2716	);
2717	BDB::min_parallel 8;	3971	BDB::min_parallel 16;
2718		3972	BDB::max_poll_reqs $TICK * 0.1;
2719	BDB::set_sync_prepare {	3973	$AnyEvent::BDB::WATCHER->priority (1);
2720	my $status;
2721	my $current = $Coro::current;
2722	(
2723	sub {
2724	$status = $!;
2725	$current->ready; undef $current;
2726	},
2727	sub {
2728	Coro::schedule while defined $current;
2729	$! = $status;
2730	},
2731	)
2732	};
2733		3974
2734	unless ($DB_ENV) {	3975	unless ($DB_ENV) {
2735	$DB_ENV = BDB::db_env_create;	3976	$DB_ENV = BDB::db_env_create;
		3977	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3978	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3979	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3980	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3981	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2736		3982
2737	cf::sync_job {	3983	cf::sync_job {
2738	eval {	3984	eval {
2739	BDB::db_env_open	3985	BDB::db_env_open
2740	$DB_ENV,	3986	$DB_ENV,
2741	$BDB_ENV_DIR,	3987	$BDBDIR,
2742	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3988	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2743	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3989	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2744	0666;	3990	0666;
2745		3991
2746	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3992	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2747
2748	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2749	$DB_ENV->set_lk_detect;
2750	};	3993	};
2751		3994
2752	cf::cleanup "db_env_open(db): $@" if $@;	3995	cf::cleanup "db_env_open(db): $@" if $@;
2753	};	3996	};
2754	}	3997	}
		3998
		3999	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4000	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4001	};
		4002	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4003	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4004	};
		4005	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4006	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4007	};
2755	}	4008	}
2756		4009
2757	{	4010	{
		4011	# configure IO::AIO
		4012
2758	IO::AIO::min_parallel 8;	4013	IO::AIO::min_parallel 8;
2759
2760	undef $Coro::AIO::WATCHER;
2761	IO::AIO::max_poll_time $TICK * 0.1;	4014	IO::AIO::max_poll_time $TICK * 0.1;
2762	$AIO_POLL_WATCHER = Event->io (	4015	undef $AnyEvent::AIO::WATCHER;
2763	reentrant => 0,
2764	data => WF_AUTOCANCEL,
2765	fd => IO::AIO::poll_fileno,
2766	poll => 'r',
2767	prio => 6,
2768	cb => \&IO::AIO::poll_cb,
2769	);
2770	}	4016	}
		4017
		4018	my $_log_backtrace;
		4019
		4020	sub _log_backtrace {
		4021	my ($msg, @addr) = @_;
		4022
		4023	$msg =~ s/\n//;
		4024
		4025	# limit the # of concurrent backtraces
		4026	if ($_log_backtrace < 2) {
		4027	++$_log_backtrace;
		4028	my $perl_bt = Carp::longmess $msg;
		4029	async {
		4030	$Coro::current->{desc} = "abt $msg";
		4031
		4032	my @bt = fork_call {
		4033	@addr = map { sprintf "%x", $_ } @addr;
		4034	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4035	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4036	or die "addr2line: $!";
		4037
		4038	my @funcs;
		4039	my @res = <$fh>;
		4040	chomp for @res;
		4041	while (@res) {
		4042	my ($func, $line) = splice @res, 0, 2, ();
		4043	push @funcs, "[$func] $line";
		4044	}
		4045
		4046	@funcs
		4047	};
		4048
		4049	LOG llevInfo, "[ABT] $perl_bt\n";
		4050	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4051	LOG llevInfo, "[ABT] $_\n" for @bt;
		4052	--$_log_backtrace;
		4053	};
		4054	} else {
		4055	LOG llevInfo, "[ABT] $msg\n";
		4056	LOG llevInfo, "[ABT] [suppressed]\n";
		4057	}
		4058	}
		4059
		4060	# load additional modules
		4061	require "cf/$_.pm" for @EXTRA_MODULES;
		4062	cf::_connect_to_perl_2;
2771		4063
2772	END { cf::emergency_save }	4064	END { cf::emergency_save }
2773		4065
2774	1	4066	1
2775		4067

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